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chore: Make glfw submodule and change build files

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This commit is contained in:
Huseyn Ismayilov 2024-07-29 16:09:53 +04:00
parent dccd483083
commit 7976110c27
175 changed files with 18 additions and 120803 deletions
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3
.gitmodules vendored
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@ -1,3 +1,6 @@
[submodule "thirdparty/glm"]
path = thirdparty/glm
url = https://github.com/g-truc/glm
[submodule "thirdparty/glfw"]
path = thirdparty/glfw
url = https://github.com/glfw/glfw

18
CMakeLists.txt
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@ -5,8 +5,8 @@ set(CMAKE_CXX_STANDARD 17)
project(ferx)
# Define variables of directory paths
set(EDITOR_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/editor/src)
set(EDITOR_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/editor/include)
set(SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/editor/src)
set(INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/editor/include)
set(THIRDPARTY_DIR ${CMAKE_CURRENT_SOURCE_DIR}/thirdparty)
# Add thirdparty libraries
@ -16,13 +16,13 @@ add_subdirectory(${THIRDPARTY_DIR}/glm)
add_subdirectory(${THIRDPARTY_DIR}/imgui)
# Define macros for the project sources
file(GLOB_RECURSE EDITOR_SOURCES CONFIGURE_DEPENDS "${EDITOR_SOURCE_DIR}/*.cpp")
add_executable(editor)
file(GLOB_RECURSE SOURCES CONFIGURE_DEPENDS "${SOURCE_DIR}/*.cpp")
add_executable(${PROJECT_NAME})
target_compile_definitions(editor PUBLIC RESOURCES_PATH="${CMAKE_CURRENT_SOURCE_DIR}/resources/") # This is useful to get an ASSETS_PATH in your IDE during development but you should comment this if you compile a release version and uncomment the next line
#target_compile_definitions(editor PUBLIC RESOURCES_PATH="./resources/") # Uncomment this line to setup the ASSETS_PATH macro to the final assets directory when you share the game
target_compile_definitions(${PROJECT_NAME} PUBLIC RESOURCES_PATH="${CMAKE_CURRENT_SOURCE_DIR}/resources/") # This is useful to get an ASSETS_PATH in your IDE during development but you should comment this if you compile a release version and uncomment the next line
#target_compile_definitions(${PROJECT_NAME} PUBLIC RESOURCES_PATH="./resources/") # Uncomment this line to setup the ASSETS_PATH macro to the final assets directory when you share the game
target_sources(editor PRIVATE ${EDITOR_SOURCES} )
target_include_directories(editor PRIVATE ${EDITOR_INCLUDE_DIR})
target_sources(${PROJECT_NAME} PRIVATE ${SOURCES} )
target_include_directories(${PROJECT_NAME} PRIVATE ${INCLUDE_DIR})
target_link_libraries(editor PRIVATE glfw glad glm imgui)
target_link_libraries(${PROJECT_NAME} PRIVATE glfw glad glm imgui)

6
Makefile
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@ -1,8 +1,9 @@
BUILD_DIR = build
NAME = ferx
RM += -r
all: debug
all: debug run
release:
cmake -S . -B $(BUILD_DIR) -G Ninja -DCMAKE_BUILD_TYPE=Release
@ -12,6 +13,9 @@ debug:
cmake -S . -B $(BUILD_DIR) -G Ninja -DCMAKE_BUILD_TYPE=Debug
cmake --build $(BUILD_DIR) -j8
run:
cd $(BUILD_DIR) && ./${NAME}
clean:
cmake --build $(BUILD_DIR) --target clean

57
imgui.ini
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@ -1,57 +0,0 @@
[Window][DockSpaceViewport_11111111]
Pos=0,19
Size=1366,693
Collapsed=0
[Window][Debug##Default]
Pos=60,60
Size=400,400
Collapsed=0
[Window][Console]
Pos=290,532
Size=802,180
Collapsed=0
DockId=0x00000005,1
[Window][Tools]
Pos=0,19
Size=233,693
Collapsed=0
DockId=0x00000002,0
[Window][Inspector]
Pos=1094,19
Size=272,693
Collapsed=0
DockId=0x00000006,0
[Window][Scene]
Pos=290,19
Size=802,511
Collapsed=0
DockId=0x00000004,0
[Window][Hierarchy]
Pos=0,19
Size=288,693
Collapsed=0
DockId=0x00000007,0
[Window][Project]
Pos=290,532
Size=802,180
Collapsed=0
DockId=0x00000005,0
[Docking][Data]
DockSpace ID=0x8B93E3BD Window=0xA787BDB4 Pos=0,19 Size=1366,693 Split=X
DockNode ID=0x00000007 Parent=0x8B93E3BD SizeRef=288,693 Selected=0x29EABFBD
DockNode ID=0x00000008 Parent=0x8B93E3BD SizeRef=1076,693 Split=X
DockNode ID=0x00000001 Parent=0x00000008 SizeRef=802,693 Split=X
DockNode ID=0x00000002 Parent=0x00000001 SizeRef=233,461 Selected=0xD44407B5
DockNode ID=0x00000003 Parent=0x00000001 SizeRef=901,461 Split=Y
DockNode ID=0x00000004 Parent=0x00000003 SizeRef=321,279 CentralNode=1 Selected=0xE192E354
DockNode ID=0x00000005 Parent=0x00000003 SizeRef=321,180 Selected=0x49278EEE
DockNode ID=0x00000006 Parent=0x00000008 SizeRef=272,693 Selected=0xE7039252

1
thirdparty/glfw vendored Submodule

@ -0,0 +1 @@
Subproject commit b35641f4a3c62aa86a0b3c983d163bc0fe36026d

47
thirdparty/glfw/.appveyor.yml vendored
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@ -1,47 +0,0 @@
image:
- Visual Studio 2015
branches:
only:
- ci
- master
- latest
- 3.3-stable
skip_tags: true
environment:
matrix:
- GENERATOR: MinGW Makefiles
BUILD_SHARED_LIBS: ON
CFLAGS: -Werror
- GENERATOR: MinGW Makefiles
BUILD_SHARED_LIBS: OFF
CFLAGS: -Werror
- GENERATOR: Visual Studio 12 2013
BUILD_SHARED_LIBS: ON
CFLAGS: /WX
- GENERATOR: Visual Studio 12 2013
BUILD_SHARED_LIBS: OFF
CFLAGS: /WX
matrix:
fast_finish: true
for:
-
matrix:
only:
- GENERATOR: MinGW Makefiles
build_script:
- set PATH=%PATH:C:\Program Files\Git\usr\bin=C:\MinGW\bin%
- cmake -B build -G "%GENERATOR%" -DBUILD_SHARED_LIBS=%BUILD_SHARED_LIBS%
- cmake --build build
-
matrix:
only:
- GENERATOR: Visual Studio 12 2013
build_script:
- cmake -B build -G "%GENERATOR%" -DBUILD_SHARED_LIBS=%BUILD_SHARED_LIBS%
- cmake --build build --target glfw
notifications:
- provider: Email
to:
- ci@glfw.org
on_build_failure: true
on_build_success: false

67
thirdparty/glfw/.editorconfig vendored
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@ -1,67 +0,0 @@
# EditorConfig for GLFW and its internal dependencies
#
# All files created by GLFW should indent with four spaces unless their format requires
# otherwise. A few files still use other indent styles for historical reasons.
#
# Dependencies have (what seemed to be) their existing styles described. Those with
# existing trailing whitespace have it preserved to avoid cluttering future commits.
root = true
[*]
charset = utf-8
end_of_line = lf
[include/GLFW/*.h]
indent_style = space
indent_size = 4
[{src,examples,tests}/*.{c,m,h,rc,in}]
indent_style = space
indent_size = 4
[CMakeLists.txt]
indent_style = space
indent_size = 4
[CMake/**.{cmake,in}]
indent_style = space
indent_size = 4
[*.{md}]
indent_style = space
indent_size = 4
trim_trailing_whitespace = false
[DoxygenLayout.xml]
indent_style = space
indent_size = 2
[docs/*.{scss,html}]
indent_style = tab
indent_size = unset
[deps/mingw/*.h]
indent_style = space
indent_size = 4
tab_width = 8
trim_trailing_whitespace = false
[deps/getopt.{c,h}]
indent_style = space
indent_size = 2
[deps/linmath.h]
indent_style = tab
tab_width = 4
indent_size = 4
trim_trailing_whitespace = false
[deps/nuklear*.h]
indent_style = space
indent_size = 4
[deps/tinycthread.{c,h}]
indent_style = space
indent_size = 2

5
thirdparty/glfw/.gitattributes vendored
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@ -1,5 +0,0 @@
*.m linguist-language=Objective-C
.gitignore export-ignore
.gitattributes export-ignore
.travis.yml export-ignore
.appveyor.yml export-ignore

8
thirdparty/glfw/.github/CODEOWNERS vendored
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@ -1,8 +0,0 @@
* @elmindreda
docs/*.css @glfw/webdev
docs/*.scss @glfw/webdev
docs/*.html @glfw/webdev
docs/*.xml @glfw/webdev

100
thirdparty/glfw/.github/workflows/build.yml vendored
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@ -1,100 +0,0 @@
name: Build
on:
pull_request:
push:
branches: [ ci, master, latest, 3.3-stable ]
workflow_dispatch:
permissions:
statuses: write
contents: read
jobs:
build-linux-clang:
name: Linux (Clang)
runs-on: ubuntu-latest
timeout-minutes: 4
env:
CC: clang
CFLAGS: -Werror
steps:
- uses: actions/checkout@v4
- name: Install dependencies
run: |
sudo apt update
sudo apt install libxrandr-dev libxinerama-dev libxcursor-dev libxi-dev libxext-dev libwayland-dev libxkbcommon-dev
- name: Configure Null shared library
run: cmake -B build-null-shared -D GLFW_BUILD_WAYLAND=OFF -D GLFW_BUILD_X11=OFF -D BUILD_SHARED_LIBS=ON
- name: Build Null shared library
run: cmake --build build-null-shared --parallel
- name: Configure X11 shared library
run: cmake -B build-x11-shared -D GLFW_BUILD_WAYLAND=OFF -D GLFW_BUILD_X11=ON -D BUILD_SHARED_LIBS=ON
- name: Build X11 shared library
run: cmake --build build-x11-shared --parallel
- name: Configure Wayland shared library
run: cmake -B build-wayland-shared -D GLFW_BUILD_WAYLAND=ON -D GLFW_BUILD_X11=OFF -D BUILD_SHARED_LIBS=ON
- name: Build Wayland shared library
run: cmake --build build-wayland-shared --parallel
- name: Configure Wayland+X11 static library
run: cmake -B build-full-static -D GLFW_BUILD_WAYLAND=ON -D GLFW_BUILD_X11=ON
- name: Build Wayland+X11 static library
run: cmake --build build-full-static --parallel
- name: Configure Wayland+X11 shared library
run: cmake -B build-full-shared -D GLFW_BUILD_WAYLAND=ON -D BUILD_SHARED_LIBS=ON -D GLFW_BUILD_X11=ON
- name: Build Wayland+X11 shared library
run: cmake --build build-full-shared --parallel
build-macos-clang:
name: macOS (Clang)
runs-on: macos-latest
timeout-minutes: 4
env:
CFLAGS: -Werror
MACOSX_DEPLOYMENT_TARGET: 10.11
CMAKE_OSX_ARCHITECTURES: x86_64;arm64
steps:
- uses: actions/checkout@v4
- name: Configure Null shared library
run: cmake -B build-null-shared -D GLFW_BUILD_COCOA=OFF -D BUILD_SHARED_LIBS=ON
- name: Build Null shared library
run: cmake --build build-null-shared --parallel
- name: Configure Cocoa static library
run: cmake -B build-cocoa-static
- name: Build Cocoa static library
run: cmake --build build-cocoa-static --parallel
- name: Configure Cocoa shared library
run: cmake -B build-cocoa-shared -D BUILD_SHARED_LIBS=ON
- name: Build Cocoa shared library
run: cmake --build build-cocoa-shared --parallel
build-windows-vs2022:
name: Windows (VS2022)
runs-on: windows-latest
timeout-minutes: 4
env:
CFLAGS: /WX
steps:
- uses: actions/checkout@v4
- name: Configure Win32 shared x86 library
run: cmake -B build-win32-shared-x86 -G "Visual Studio 17 2022" -A Win32 -D BUILD_SHARED_LIBS=ON
- name: Build Win32 shared x86 library
run: cmake --build build-win32-shared-x86 --parallel
- name: Configure Win32 static x64 library
run: cmake -B build-win32-static-x64 -G "Visual Studio 17 2022" -A x64
- name: Build Win32 static x64 library
run: cmake --build build-win32-static-x64 --parallel
- name: Configure Win32 shared x64 library
run: cmake -B build-win32-shared-x64 -G "Visual Studio 17 2022" -A x64 -D BUILD_SHARED_LIBS=ON
- name: Build Win32 shared x64 library
run: cmake --build build-win32-shared-x64 --parallel

104
thirdparty/glfw/.gitignore vendored
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@ -1,104 +0,0 @@
# The canonical out-of-tree build subdirectory
build
build-*
# Visual Studio clutter
_ReSharper*
*.sdf
*.suo
*.dir
*.vcxproj*
*.sln
.vs
CMakeSettings.json
Win32
x64
Debug
Release
MinSizeRel
RelWithDebInfo
*.opensdf
# Xcode clutter
GLFW.build
GLFW.xcodeproj
# macOS clutter
.DS_Store
# Makefile generator clutter
Makefile
# Ninja generator clutter
build.ninja
rules.ninja
.ninja_deps
.ninja_log
# CMake clutter
CMakeCache.txt
CMakeFiles
CMakeScripts
CMakeDoxyfile.in
CMakeDoxygenDefaults.cmake
cmake_install.cmake
cmake_uninstall.cmake
# Generated files
docs/Doxyfile
docs/html
docs/warnings.txt
docs/doxygen_sqlite3.db
src/glfw_config.h
src/glfw3.pc
src/glfw3Config.cmake
src/glfw3ConfigVersion.cmake
# Compiled binaries
src/libglfw.so
src/libglfw.so.3
src/libglfw.so.3.5
src/libglfw.dylib
src/libglfw.dylib
src/libglfw.3.dylib
src/libglfw.3.5.dylib
src/libglfw3.a
src/glfw3.lib
src/glfw3.dll
src/glfw3dll.lib
src/libglfw3dll.a
examples/*.app
examples/*.exe
examples/boing
examples/gears
examples/heightmap
examples/offscreen
examples/particles
examples/splitview
examples/sharing
examples/triangle-opengl
examples/wave
examples/windows
tests/*.app
tests/*.exe
tests/clipboard
tests/cursor
tests/empty
tests/events
tests/gamma
tests/glfwinfo
tests/icon
tests/iconify
tests/inputlag
tests/joysticks
tests/monitors
tests/msaa
tests/reopen
tests/tearing
tests/threads
tests/timeout
tests/title
tests/triangle-vulkan
tests/window
tests/windows

10
thirdparty/glfw/.mailmap vendored
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@ -1,10 +0,0 @@
Camilla Löwy <elmindreda@glfw.org> <elmindreda@users.sourceforge.net>
Camilla Löwy <elmindreda@glfw.org> <elmindreda@elmindreda.org>
Camilla Löwy <elmindreda@glfw.org>
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
Marcus Geelnard <m@bitsnbites.eu> <marcus256@users.sourceforge.net>
Marcus Geelnard <m@bitsnbites.eu> <marcus@geelnards-pc.(none)>
Marcus Geelnard <m@bitsnbites.eu>

48
thirdparty/glfw/CMake/GenerateMappings.cmake vendored
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@ -1,48 +0,0 @@
# Usage:
# cmake -P GenerateMappings.cmake <path/to/mappings.h.in> <path/to/mappings.h>
set(source_url "https://raw.githubusercontent.com/gabomdq/SDL_GameControllerDB/master/gamecontrollerdb.txt")
set(source_path "${CMAKE_CURRENT_BINARY_DIR}/gamecontrollerdb.txt")
set(template_path "${CMAKE_ARGV3}")
set(target_path "${CMAKE_ARGV4}")
if (NOT EXISTS "${template_path}")
message(FATAL_ERROR "Failed to find template file ${template_path}")
endif()
file(DOWNLOAD "${source_url}" "${source_path}"
STATUS download_status
TLS_VERIFY on)
list(GET download_status 0 status_code)
list(GET download_status 1 status_message)
if (status_code)
message(FATAL_ERROR "Failed to download ${source_url}: ${status_message}")
endif()
file(STRINGS "${source_path}" lines)
foreach(line ${lines})
if (line MATCHES "^[0-9a-fA-F]")
if (line MATCHES "platform:Windows")
if (GLFW_WIN32_MAPPINGS)
string(APPEND GLFW_WIN32_MAPPINGS "\n")
endif()
string(APPEND GLFW_WIN32_MAPPINGS "\"${line}\",")
elseif (line MATCHES "platform:Mac OS X")
if (GLFW_COCOA_MAPPINGS)
string(APPEND GLFW_COCOA_MAPPINGS "\n")
endif()
string(APPEND GLFW_COCOA_MAPPINGS "\"${line}\",")
elseif (line MATCHES "platform:Linux")
if (GLFW_LINUX_MAPPINGS)
string(APPEND GLFW_LINUX_MAPPINGS "\n")
endif()
string(APPEND GLFW_LINUX_MAPPINGS "\"${line}\",")
endif()
endif()
endforeach()
configure_file("${template_path}" "${target_path}" @ONLY NEWLINE_STYLE UNIX)
file(REMOVE "${source_path}")

38
thirdparty/glfw/CMake/Info.plist.in vendored
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@ -1,38 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>CFBundleDevelopmentRegion</key>
<string>English</string>
<key>CFBundleExecutable</key>
<string>${MACOSX_BUNDLE_EXECUTABLE_NAME}</string>
<key>CFBundleGetInfoString</key>
<string>${MACOSX_BUNDLE_INFO_STRING}</string>
<key>CFBundleIconFile</key>
<string>${MACOSX_BUNDLE_ICON_FILE}</string>
<key>CFBundleIdentifier</key>
<string>${MACOSX_BUNDLE_GUI_IDENTIFIER}</string>
<key>CFBundleInfoDictionaryVersion</key>
<string>6.0</string>
<key>CFBundleLongVersionString</key>
<string>${MACOSX_BUNDLE_LONG_VERSION_STRING}</string>
<key>CFBundleName</key>
<string>${MACOSX_BUNDLE_BUNDLE_NAME}</string>
<key>CFBundlePackageType</key>
<string>APPL</string>
<key>CFBundleShortVersionString</key>
<string>${MACOSX_BUNDLE_SHORT_VERSION_STRING}</string>
<key>CFBundleSignature</key>
<string>????</string>
<key>CFBundleVersion</key>
<string>${MACOSX_BUNDLE_BUNDLE_VERSION}</string>
<key>CSResourcesFileMapped</key>
<true/>
<key>LSRequiresCarbon</key>
<true/>
<key>NSHumanReadableCopyright</key>
<string>${MACOSX_BUNDLE_COPYRIGHT}</string>
<key>NSHighResolutionCapable</key>
<true/>
</dict>
</plist>

29
thirdparty/glfw/CMake/cmake_uninstall.cmake.in vendored
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@ -1,29 +0,0 @@
if (NOT EXISTS "@GLFW_BINARY_DIR@/install_manifest.txt")
message(FATAL_ERROR "Cannot find install manifest: \"@GLFW_BINARY_DIR@/install_manifest.txt\"")
endif()
file(READ "@GLFW_BINARY_DIR@/install_manifest.txt" files)
string(REGEX REPLACE "\n" ";" files "${files}")
foreach (file ${files})
message(STATUS "Uninstalling \"$ENV{DESTDIR}${file}\"")
if (EXISTS "$ENV{DESTDIR}${file}")
exec_program("@CMAKE_COMMAND@" ARGS "-E remove \"$ENV{DESTDIR}${file}\""
OUTPUT_VARIABLE rm_out
RETURN_VALUE rm_retval)
if (NOT "${rm_retval}" STREQUAL 0)
MESSAGE(FATAL_ERROR "Problem when removing \"$ENV{DESTDIR}${file}\"")
endif()
elseif (IS_SYMLINK "$ENV{DESTDIR}${file}")
EXEC_PROGRAM("@CMAKE_COMMAND@" ARGS "-E remove \"$ENV{DESTDIR}${file}\""
OUTPUT_VARIABLE rm_out
RETURN_VALUE rm_retval)
if (NOT "${rm_retval}" STREQUAL 0)
message(FATAL_ERROR "Problem when removing symlink \"$ENV{DESTDIR}${file}\"")
endif()
else()
message(STATUS "File \"$ENV{DESTDIR}${file}\" does not exist.")
endif()
endforeach()

13
thirdparty/glfw/CMake/glfw3.pc.in vendored
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@ -1,13 +0,0 @@
prefix=@CMAKE_INSTALL_PREFIX@
exec_prefix=${prefix}
includedir=@CMAKE_INSTALL_FULL_INCLUDEDIR@
libdir=@CMAKE_INSTALL_FULL_LIBDIR@
Name: GLFW
Description: A multi-platform library for OpenGL, window and input
Version: @GLFW_VERSION@
URL: https://www.glfw.org/
Requires.private: @GLFW_PKG_CONFIG_REQUIRES_PRIVATE@
Libs: -L${libdir} -l@GLFW_LIB_NAME@@GLFW_LIB_NAME_SUFFIX@
Libs.private: @GLFW_PKG_CONFIG_LIBS_PRIVATE@
Cflags: -I${includedir}

3
thirdparty/glfw/CMake/glfw3Config.cmake.in vendored
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@ -1,3 +0,0 @@
include(CMakeFindDependencyMacro)
find_dependency(Threads)
include("${CMAKE_CURRENT_LIST_DIR}/glfw3Targets.cmake")

13
thirdparty/glfw/CMake/i686-w64-mingw32-clang.cmake vendored
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@ -1,13 +0,0 @@
# Define the environment for cross-compiling with 32-bit MinGW-w64 Clang
SET(CMAKE_SYSTEM_NAME Windows) # Target system name
SET(CMAKE_SYSTEM_VERSION 1)
SET(CMAKE_C_COMPILER "i686-w64-mingw32-clang")
SET(CMAKE_CXX_COMPILER "i686-w64-mingw32-clang++")
SET(CMAKE_RC_COMPILER "i686-w64-mingw32-windres")
SET(CMAKE_RANLIB "i686-w64-mingw32-ranlib")
# Configure the behaviour of the find commands
SET(CMAKE_FIND_ROOT_PATH "/usr/i686-w64-mingw32")
SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)

13
thirdparty/glfw/CMake/i686-w64-mingw32.cmake vendored
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@ -1,13 +0,0 @@
# Define the environment for cross-compiling with 32-bit MinGW-w64 GCC
SET(CMAKE_SYSTEM_NAME Windows) # Target system name
SET(CMAKE_SYSTEM_VERSION 1)
SET(CMAKE_C_COMPILER "i686-w64-mingw32-gcc")
SET(CMAKE_CXX_COMPILER "i686-w64-mingw32-g++")
SET(CMAKE_RC_COMPILER "i686-w64-mingw32-windres")
SET(CMAKE_RANLIB "i686-w64-mingw32-ranlib")
# Configure the behaviour of the find commands
SET(CMAKE_FIND_ROOT_PATH "/usr/i686-w64-mingw32")
SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)

17
thirdparty/glfw/CMake/modules/FindEpollShim.cmake vendored
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@ -1,17 +0,0 @@
# Find EpollShim
# Once done, this will define
#
# EPOLLSHIM_FOUND - System has EpollShim
# EPOLLSHIM_INCLUDE_DIRS - The EpollShim include directories
# EPOLLSHIM_LIBRARIES - The libraries needed to use EpollShim
find_path(EPOLLSHIM_INCLUDE_DIRS NAMES sys/epoll.h sys/timerfd.h HINTS /usr/local/include/libepoll-shim)
find_library(EPOLLSHIM_LIBRARIES NAMES epoll-shim libepoll-shim HINTS /usr/local/lib)
if (EPOLLSHIM_INCLUDE_DIRS AND EPOLLSHIM_LIBRARIES)
set(EPOLLSHIM_FOUND TRUE)
endif (EPOLLSHIM_INCLUDE_DIRS AND EPOLLSHIM_LIBRARIES)
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(EpollShim DEFAULT_MSG EPOLLSHIM_LIBRARIES EPOLLSHIM_INCLUDE_DIRS)
mark_as_advanced(EPOLLSHIM_INCLUDE_DIRS EPOLLSHIM_LIBRARIES)

18
thirdparty/glfw/CMake/modules/FindOSMesa.cmake vendored
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@ -1,18 +0,0 @@
# Try to find OSMesa on a Unix system
#
# This will define:
#
# OSMESA_LIBRARIES - Link these to use OSMesa
# OSMESA_INCLUDE_DIR - Include directory for OSMesa
#
# Copyright (c) 2014 Brandon Schaefer <brandon.schaefer@canonical.com>
if (NOT WIN32)
find_package (PkgConfig)
pkg_check_modules (PKG_OSMESA QUIET osmesa)
set (OSMESA_INCLUDE_DIR ${PKG_OSMESA_INCLUDE_DIRS})
set (OSMESA_LIBRARIES ${PKG_OSMESA_LIBRARIES})
endif ()

13
thirdparty/glfw/CMake/x86_64-w64-mingw32-clang.cmake vendored
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@ -1,13 +0,0 @@
# Define the environment for cross-compiling with 64-bit MinGW-w64 Clang
SET(CMAKE_SYSTEM_NAME Windows) # Target system name
SET(CMAKE_SYSTEM_VERSION 1)
SET(CMAKE_C_COMPILER "x86_64-w64-mingw32-clang")
SET(CMAKE_CXX_COMPILER "x86_64-w64-mingw32-clang++")
SET(CMAKE_RC_COMPILER "x86_64-w64-mingw32-windres")
SET(CMAKE_RANLIB "x86_64-w64-mingw32-ranlib")
# Configure the behaviour of the find commands
SET(CMAKE_FIND_ROOT_PATH "/usr/x86_64-w64-mingw32")
SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)

13
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@ -1,13 +0,0 @@
# Define the environment for cross-compiling with 64-bit MinGW-w64 GCC
SET(CMAKE_SYSTEM_NAME Windows) # Target system name
SET(CMAKE_SYSTEM_VERSION 1)
SET(CMAKE_C_COMPILER "x86_64-w64-mingw32-gcc")
SET(CMAKE_CXX_COMPILER "x86_64-w64-mingw32-g++")
SET(CMAKE_RC_COMPILER "x86_64-w64-mingw32-windres")
SET(CMAKE_RANLIB "x86_64-w64-mingw32-ranlib")
# Configure the behaviour of the find commands
SET(CMAKE_FIND_ROOT_PATH "/usr/x86_64-w64-mingw32")
SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)

165
thirdparty/glfw/CMakeLists.txt vendored
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@ -1,165 +0,0 @@
cmake_minimum_required(VERSION 3.4...3.28 FATAL_ERROR)
project(GLFW VERSION 3.5.0 LANGUAGES C)
if (POLICY CMP0069)
cmake_policy(SET CMP0069 NEW)
endif()
if (POLICY CMP0077)
cmake_policy(SET CMP0077 NEW)
endif()
set_property(GLOBAL PROPERTY USE_FOLDERS ON)
string(COMPARE EQUAL "${CMAKE_CURRENT_SOURCE_DIR}" "${CMAKE_SOURCE_DIR}" GLFW_STANDALONE)
option(BUILD_SHARED_LIBS "Build shared libraries" OFF)
option(GLFW_BUILD_EXAMPLES "Build the GLFW example programs" ${GLFW_STANDALONE})
option(GLFW_BUILD_TESTS "Build the GLFW test programs" ${GLFW_STANDALONE})
option(GLFW_BUILD_DOCS "Build the GLFW documentation" ON)
option(GLFW_INSTALL "Generate installation target" ON)
include(GNUInstallDirs)
include(CMakeDependentOption)
if (GLFW_USE_OSMESA)
message(FATAL_ERROR "GLFW_USE_OSMESA has been removed; set the GLFW_PLATFORM init hint")
endif()
if (DEFINED GLFW_USE_WAYLAND AND UNIX AND NOT APPLE)
message(FATAL_ERROR
"GLFW_USE_WAYLAND has been removed; delete the CMake cache and set GLFW_BUILD_WAYLAND and GLFW_BUILD_X11 instead")
endif()
cmake_dependent_option(GLFW_BUILD_WIN32 "Build support for Win32" ON "WIN32" OFF)
cmake_dependent_option(GLFW_BUILD_COCOA "Build support for Cocoa" ON "APPLE" OFF)
cmake_dependent_option(GLFW_BUILD_X11 "Build support for X11" ON "UNIX;NOT APPLE" OFF)
cmake_dependent_option(GLFW_BUILD_WAYLAND "Build support for Wayland" OFF "UNIX;NOT APPLE" OFF)
cmake_dependent_option(GLFW_USE_HYBRID_HPG "Force use of high-performance GPU on hybrid systems" OFF
"WIN32" OFF)
cmake_dependent_option(USE_MSVC_RUNTIME_LIBRARY_DLL "Use MSVC runtime library DLL" ON
"MSVC" OFF)
set(GLFW_LIBRARY_TYPE "${GLFW_LIBRARY_TYPE}" CACHE STRING
"Library type override for GLFW (SHARED, STATIC, OBJECT, or empty to follow BUILD_SHARED_LIBS)")
if (GLFW_LIBRARY_TYPE)
if (GLFW_LIBRARY_TYPE STREQUAL "SHARED")
set(GLFW_BUILD_SHARED_LIBRARY TRUE)
else()
set(GLFW_BUILD_SHARED_LIBRARY FALSE)
endif()
else()
set(GLFW_BUILD_SHARED_LIBRARY ${BUILD_SHARED_LIBS})
endif()
list(APPEND CMAKE_MODULE_PATH "${GLFW_SOURCE_DIR}/CMake/modules")
find_package(Threads REQUIRED)
#--------------------------------------------------------------------
# Report backend selection
#--------------------------------------------------------------------
if (GLFW_BUILD_WIN32)
message(STATUS "Including Win32 support")
endif()
if (GLFW_BUILD_COCOA)
message(STATUS "Including Cocoa support")
endif()
if (GLFW_BUILD_WAYLAND)
message(STATUS "Including Wayland support")
endif()
if (GLFW_BUILD_X11)
message(STATUS "Including X11 support")
endif()
#--------------------------------------------------------------------
# Apply Microsoft C runtime library option
# This is here because it also applies to tests and examples
#--------------------------------------------------------------------
if (MSVC AND NOT USE_MSVC_RUNTIME_LIBRARY_DLL)
if (CMAKE_VERSION VERSION_LESS 3.15)
foreach (flag CMAKE_C_FLAGS
CMAKE_C_FLAGS_DEBUG
CMAKE_C_FLAGS_RELEASE
CMAKE_C_FLAGS_MINSIZEREL
CMAKE_C_FLAGS_RELWITHDEBINFO)
if (flag MATCHES "/MD")
string(REGEX REPLACE "/MD" "/MT" ${flag} "${${flag}}")
endif()
if (flag MATCHES "/MDd")
string(REGEX REPLACE "/MDd" "/MTd" ${flag} "${${flag}}")
endif()
endforeach()
else()
set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")
endif()
endif()
#--------------------------------------------------------------------
# Create generated files
#--------------------------------------------------------------------
include(CMakePackageConfigHelpers)
set(GLFW_CONFIG_PATH "${CMAKE_INSTALL_LIBDIR}/cmake/glfw3")
configure_package_config_file(CMake/glfw3Config.cmake.in
src/glfw3Config.cmake
INSTALL_DESTINATION "${GLFW_CONFIG_PATH}"
NO_CHECK_REQUIRED_COMPONENTS_MACRO)
write_basic_package_version_file(src/glfw3ConfigVersion.cmake
VERSION ${GLFW_VERSION}
COMPATIBILITY SameMajorVersion)
#--------------------------------------------------------------------
# Add subdirectories
#--------------------------------------------------------------------
add_subdirectory(src)
if (GLFW_BUILD_EXAMPLES)
add_subdirectory(examples)
endif()
if (GLFW_BUILD_TESTS)
add_subdirectory(tests)
endif()
if (GLFW_BUILD_DOCS)
add_subdirectory(docs)
endif()
#--------------------------------------------------------------------
# Install files other than the library
# The library is installed by src/CMakeLists.txt
#--------------------------------------------------------------------
if (GLFW_INSTALL)
install(DIRECTORY include/GLFW DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
FILES_MATCHING PATTERN glfw3.h PATTERN glfw3native.h)
install(FILES "${GLFW_BINARY_DIR}/src/glfw3Config.cmake"
"${GLFW_BINARY_DIR}/src/glfw3ConfigVersion.cmake"
DESTINATION "${GLFW_CONFIG_PATH}")
install(EXPORT glfwTargets FILE glfw3Targets.cmake
EXPORT_LINK_INTERFACE_LIBRARIES
DESTINATION "${GLFW_CONFIG_PATH}")
install(FILES "${GLFW_BINARY_DIR}/src/glfw3.pc"
DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
# Only generate this target if no higher-level project already has
if (NOT TARGET uninstall)
configure_file(CMake/cmake_uninstall.cmake.in
cmake_uninstall.cmake IMMEDIATE @ONLY)
add_custom_target(uninstall
"${CMAKE_COMMAND}" -P
"${GLFW_BINARY_DIR}/cmake_uninstall.cmake")
set_target_properties(uninstall PROPERTIES FOLDER "GLFW3")
endif()
endif()

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@ -1,299 +0,0 @@
# Acknowledgements
GLFW exists because people around the world donated their time and lent their
skills. This list only includes contributions to the main repository and
excludes other invaluable contributions like language bindings and text and
video tutorials.
- Bobyshev Alexander
- Laurent Aphecetche
- Matt Arsenault
- Takuro Ashie
- ashishgamedev
- David Avedissian
- Luca Bacci
- Keith Bauer
- John Bartholomew
- Coşku Baş
- Bayemite
- Niklas Behrens
- Andrew Belt
- Nevyn Bengtsson
- Niklas Bergström
- Denis Bernard
- BiBi
- Doug Binks
- blanco
- Waris Boonyasiriwat
- Kyle Brenneman
- Rok Breulj
- TheBrokenRail
- Kai Burjack
- Martin Capitanio
- Nicolas Caramelli
- David Carlier
- Arturo Castro
- Jose Luis Cercós Pita
- Chi-kwan Chan
- Victor Chernyakin
- TheChocolateOre
- Ali Chraghi
- Joseph Chua
- Ian Clarkson
- Michał Cichoń
- Lambert Clara
- Anna Clarke
- Josh Codd
- Yaron Cohen-Tal
- Omar Cornut
- Andrew Corrigan
- Bailey Cosier
- Noel Cower
- James Cowgill
- CuriouserThing
- Bill Currie
- Jason Daly
- danhambleton
- Jarrod Davis
- Olivier Delannoy
- Paul R. Deppe
- Michael Dickens
- Роман Донченко
- Mario Dorn
- Wolfgang Draxinger
- Jonathan Dummer
- Ralph Eastwood
- Fredrik Ehnbom
- Robin Eklind
- Jan Ekström
- Siavash Eliasi
- Ahmad Fatoum
- Nikita Fediuchin
- Felipe Ferreira
- Michael Fogleman
- forworldm
- Jason Francis
- Gerald Franz
- Mário Freitas
- GeO4d
- Marcus Geelnard
- Gegy
- ghuser404
- Charles Giessen
- Ryan C. Gordon
- Stephen Gowen
- Kovid Goyal
- Kevin Grandemange
- Eloi Marín Gratacós
- Grzesiek11
- Stefan Gustavson
- Andrew Gutekanst
- Stephen Gutekanst
- Jonathan Hale
- Daniel Hauser
- hdf89shfdfs
- Moritz Heinemann
- Sylvain Hellegouarch
- Björn Hempel
- Matthew Henry
- heromyth
- Lucas Hinderberger
- Paul Holden
- Hajime Hoshi
- Warren Hu
- Charles Huber
- Brent Huisman
- Florian Hülsmann
- illustris
- InKryption
- IntellectualKitty
- Aaron Jacobs
- JannikGM
- Erik S. V. Jansson
- jjYBdx4IL
- Peter Johnson
- Toni Jovanoski
- Arseny Kapoulkine
- Cem Karan
- Osman Keskin
- Koray Kilinc
- Josh Kilmer
- Byunghoon Kim
- Cameron King
- Peter Knut
- Christoph Kubisch
- Yuri Kunde Schlesner
- Rokas Kupstys
- Konstantin Käfer
- Eric Larson
- Guillaume Lebrun
- Francis Lecavalier
- Jong Won Lee
- Robin Leffmann
- Glenn Lewis
- Shane Liesegang
- Anders Lindqvist
- Leon Linhart
- Marco Lizza
- lo-v-ol
- Eyal Lotem
- Aaron Loucks
- Ned Loynd
- Luflosi
- lukect
- Tristam MacDonald
- Jean-Luc Mackail
- Hans Mackowiak
- Ramiro Magno
- Дмитри Малышев
- Zbigniew Mandziejewicz
- Adam Marcus
- Célestin Marot
- Kyle McDonald
- David V. McKay
- David Medlock
- Bryce Mehring
- Jonathan Mercier
- Marcel Metz
- Liam Middlebrook
- mightgoyardstill
- Ave Milia
- Icyllis Milica
- Jonathan Miller
- Kenneth Miller
- Bruce Mitchener
- Jack Moffitt
- Ravi Mohan
- Jeff Molofee
- Alexander Monakov
- Pierre Morel
- Jon Morton
- Pierre Moulon
- Martins Mozeiko
- Pascal Muetschard
- James Murphy
- Julian Møller
- Julius Häger
- Nat!
- NateIsStalling
- ndogxj
- F. Nedelec
- n3rdopolis
- Kristian Nielsen
- Joel Niemelä
- Victor Nova
- Kamil Nowakowski
- onox
- Denis Ovod
- Ozzy
- Andri Pálsson
- luz paz
- Peoro
- Braden Pellett
- Christopher Pelloux
- Michael Pennington
- Arturo J. Pérez
- Vladimir Perminov
- Olivier Perret
- Anthony Pesch
- Orson Peters
- Emmanuel Gil Peyrot
- Cyril Pichard
- Pilzschaf
- Keith Pitt
- Stanislav Podgorskiy
- Konstantin Podsvirov
- Nathan Poirier
- Pokechu22
- Alexandre Pretyman
- Pablo Prietz
- przemekmirek
- pthom
- Martin Pulec
- Guillaume Racicot
- Juan Ramos
- Christian Rauch
- Philip Rideout
- Eddie Ringle
- Max Risuhin
- Joe Roback
- Jorge Rodriguez
- Jari Ronkainen
- Luca Rood
- Ed Ropple
- Aleksey Rybalkin
- Mikko Rytkönen
- Riku Salminen
- Yoshinori Sano
- Brandon Schaefer
- Sebastian Schuberth
- Scr3amer
- Jan Schuerkamp
- Christian Sdunek
- Matt Sealey
- Steve Sexton
- Arkady Shapkin
- Mingjie Shen
- Ali Sherief
- Yoshiki Shibukawa
- Dmitri Shuralyov
- Joao da Silva
- Daniel Sieger
- Daljit Singh
- Michael Skec
- Daniel Skorupski
- Slemmie
- Anthony Smith
- Bradley Smith
- Cliff Smolinsky
- Patrick Snape
- Erlend Sogge Heggen
- Olivier Sohn
- Julian Squires
- Johannes Stein
- Pontus Stenetorp
- Michael Stocker
- Justin Stoecker
- Elviss Strazdins
- Paul Sultana
- Nathan Sweet
- TTK-Bandit
- Nuno Teixeira
- Jared Tiala
- Sergey Tikhomirov
- Arthur Tombs
- TronicLabs
- Ioannis Tsakpinis
- Samuli Tuomola
- Matthew Turner
- urraka
- Elias Vanderstuyft
- Stef Velzel
- Jari Vetoniemi
- Ricardo Vieira
- Nicholas Vitovitch
- Vladimír Vondruš
- Simon Voordouw
- Corentin Wallez
- Torsten Walluhn
- Patrick Walton
- Jim Wang
- Xo Wang
- Andre Weissflog
- Jay Weisskopf
- Frank Wille
- Andy Williams
- Joel Winarske
- Richard A. Wilkes
- Tatsuya Yatagawa
- Ryogo Yoshimura
- Lukas Zanner
- Andrey Zholos
- Aihui Zhu
- Santi Zupancic
- Jonas Ådahl
- Lasse Öörni
- Leonard König
- All the unmentioned and anonymous contributors in the GLFW community, for bug
reports, patches, feedback, testing and encouragement

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thirdparty/glfw/LICENSE.md vendored
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@ -1,23 +0,0 @@
Copyright (c) 2002-2006 Marcus Geelnard
Copyright (c) 2006-2019 Camilla Löwy
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would
be appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not
be misrepresented as being the original software.
3. This notice may not be removed or altered from any source
distribution.

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@ -1,151 +0,0 @@
# GLFW
[![Build status](https://github.com/glfw/glfw/actions/workflows/build.yml/badge.svg)](https://github.com/glfw/glfw/actions)
[![Build status](https://ci.appveyor.com/api/projects/status/0kf0ct9831i5l6sp/branch/master?svg=true)](https://ci.appveyor.com/project/elmindreda/glfw)
## Introduction
GLFW is an Open Source, multi-platform library for OpenGL, OpenGL ES and Vulkan
application development. It provides a simple, platform-independent API for
creating windows, contexts and surfaces, reading input, handling events, etc.
GLFW natively supports Windows, macOS and Linux and other Unix-like systems. On
Linux both Wayland and X11 are supported.
GLFW is licensed under the [zlib/libpng
license](https://www.glfw.org/license.html).
You can [download](https://www.glfw.org/download.html) the latest stable release
as source or Windows binaries. Each release starting with 3.0 also has
a corresponding [annotated tag](https://github.com/glfw/glfw/releases) with
source and binary archives.
The [documentation](https://www.glfw.org/docs/latest/) is available online and is
included in all source and binary archives. See the [release
notes](https://www.glfw.org/docs/latest/news.html) for new features, caveats and
deprecations in the latest release. For more details see the [version
history](https://www.glfw.org/changelog.html).
The `master` branch is the stable integration branch and _should_ always compile
and run on all supported platforms, although details of newly added features may
change until they have been included in a release. New features and many bug
fixes live in [other branches](https://github.com/glfw/glfw/branches/all) until
they are stable enough to merge.
If you are new to GLFW, you may find the
[tutorial](https://www.glfw.org/docs/latest/quick.html) for GLFW 3 useful. If
you have used GLFW 2 in the past, there is a [transition
guide](https://www.glfw.org/docs/latest/moving.html) for moving to the GLFW
3 API.
GLFW exists because of the contributions of [many people](CONTRIBUTORS.md)
around the world, whether by reporting bugs, providing community support, adding
features, reviewing or testing code, debugging, proofreading docs, suggesting
features or fixing bugs.
## Compiling GLFW
GLFW is written primarily in C99, with parts of macOS support being written in
Objective-C. GLFW itself requires only the headers and libraries for your OS
and window system. It does not need any additional headers for context creation
APIs (WGL, GLX, EGL, NSGL, OSMesa) or rendering APIs (OpenGL, OpenGL ES, Vulkan)
to enable support for them.
GLFW supports compilation on Windows with Visual C++ 2013 and later, MinGW and
MinGW-w64, on macOS with Clang and on Linux and other Unix-like systems with GCC
and Clang. It will likely compile in other environments as well, but this is
not regularly tested.
There are [pre-compiled binaries](https://www.glfw.org/download.html) available
for all supported compilers on Windows and macOS.
See the [compilation guide](https://www.glfw.org/docs/latest/compile.html) for
more information about how to compile GLFW yourself.
## Using GLFW
See the [documentation](https://www.glfw.org/docs/latest/) for tutorials, guides
and the API reference.
## Contributing to GLFW
See the [contribution
guide](https://github.com/glfw/glfw/blob/master/docs/CONTRIBUTING.md) for
more information.
## System requirements
GLFW supports Windows XP and later and macOS 10.11 and later. Linux and other
Unix-like systems running the X Window System are supported even without
a desktop environment or modern extensions, although some features require
a running window or clipboard manager. The OSMesa backend requires Mesa 6.3.
See the [compatibility guide](https://www.glfw.org/docs/latest/compat.html)
in the documentation for more information.
## Dependencies
GLFW itself needs only CMake 3.4 or later and the headers and libraries for your
OS and window system.
The examples and test programs depend on a number of tiny libraries. These are
located in the `deps/` directory.
- [getopt\_port](https://github.com/kimgr/getopt_port/) for examples
with command-line options
- [TinyCThread](https://github.com/tinycthread/tinycthread) for threaded
examples
- [glad2](https://github.com/Dav1dde/glad) for loading OpenGL and Vulkan
functions
- [linmath.h](https://github.com/datenwolf/linmath.h) for linear algebra in
examples
- [Nuklear](https://github.com/Immediate-Mode-UI/Nuklear) for test and example UI
- [stb\_image\_write](https://github.com/nothings/stb) for writing images to disk
The documentation is generated with [Doxygen](https://doxygen.org/) if CMake can
find that tool.
## Reporting bugs
Bugs are reported to our [issue tracker](https://github.com/glfw/glfw/issues).
Please check the [contribution
guide](https://github.com/glfw/glfw/blob/master/docs/CONTRIBUTING.md) for
information on what to include when reporting a bug.
## Changelog since 3.4
- Added `GLFW_UNLIMITED_MOUSE_BUTTONS` input mode that allows mouse buttons beyond
the limit of the mouse button tokens to be reported (#2423)
- [Cocoa] Added `QuartzCore` framework as link-time dependency
- [Cocoa] Removed support for OS X 10.10 Yosemite and earlier (#2506)
- [Wayland] Bugfix: The fractional scaling related objects were not destroyed
- [Wayland] Bugfix: `glfwInit` would segfault on compositor with no seat (#2517)
- [Wayland] Bugfix: A drag entering a non-GLFW surface could cause a segfault
- [Null] Added Vulkan 'window' surface creation via `VK_EXT_headless_surface`
- [Null] Added EGL context creation on Mesa via `EGL_MESA_platform_surfaceless`
- [EGL] Allowed native access on Wayland with `GLFW_CONTEXT_CREATION_API` set to
`GLFW_NATIVE_CONTEXT_API` (#2518)
## Contact
On [glfw.org](https://www.glfw.org/) you can find the latest version of GLFW, as
well as news, documentation and other information about the project.
If you have questions related to the use of GLFW, we have a
[forum](https://discourse.glfw.org/).
If you have a bug to report, a patch to submit or a feature you'd like to
request, please file it in the
[issue tracker](https://github.com/glfw/glfw/issues) on GitHub.
Finally, if you're interested in helping out with the development of GLFW or
porting it to your favorite platform, join us on the forum or GitHub.

230
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@ -1,230 +0,0 @@
/* Copyright (c) 2012, Kim Gräsman
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* * Neither the name of Kim Gräsman nor the names of contributors may be used
* to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL KIM GRÄSMAN BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "getopt.h"
#include <stddef.h>
#include <string.h>
const int no_argument = 0;
const int required_argument = 1;
const int optional_argument = 2;
char* optarg;
int optopt;
/* The variable optind [...] shall be initialized to 1 by the system. */
int optind = 1;
int opterr;
static char* optcursor = NULL;
/* Implemented based on [1] and [2] for optional arguments.
optopt is handled FreeBSD-style, per [3].
Other GNU and FreeBSD extensions are purely accidental.
[1] http://pubs.opengroup.org/onlinepubs/000095399/functions/getopt.html
[2] http://www.kernel.org/doc/man-pages/online/pages/man3/getopt.3.html
[3] http://www.freebsd.org/cgi/man.cgi?query=getopt&sektion=3&manpath=FreeBSD+9.0-RELEASE
*/
int getopt(int argc, char* const argv[], const char* optstring) {
int optchar = -1;
const char* optdecl = NULL;
optarg = NULL;
opterr = 0;
optopt = 0;
/* Unspecified, but we need it to avoid overrunning the argv bounds. */
if (optind >= argc)
goto no_more_optchars;
/* If, when getopt() is called argv[optind] is a null pointer, getopt()
shall return -1 without changing optind. */
if (argv[optind] == NULL)
goto no_more_optchars;
/* If, when getopt() is called *argv[optind] is not the character '-',
getopt() shall return -1 without changing optind. */
if (*argv[optind] != '-')
goto no_more_optchars;
/* If, when getopt() is called argv[optind] points to the string "-",
getopt() shall return -1 without changing optind. */
if (strcmp(argv[optind], "-") == 0)
goto no_more_optchars;
/* If, when getopt() is called argv[optind] points to the string "--",
getopt() shall return -1 after incrementing optind. */
if (strcmp(argv[optind], "--") == 0) {
++optind;
goto no_more_optchars;
}
if (optcursor == NULL || *optcursor == '\0')
optcursor = argv[optind] + 1;
optchar = *optcursor;
/* FreeBSD: The variable optopt saves the last known option character
returned by getopt(). */
optopt = optchar;
/* The getopt() function shall return the next option character (if one is
found) from argv that matches a character in optstring, if there is
one that matches. */
optdecl = strchr(optstring, optchar);
if (optdecl) {
/* [I]f a character is followed by a colon, the option takes an
argument. */
if (optdecl[1] == ':') {
optarg = ++optcursor;
if (*optarg == '\0') {
/* GNU extension: Two colons mean an option takes an
optional arg; if there is text in the current argv-element
(i.e., in the same word as the option name itself, for example,
"-oarg"), then it is returned in optarg, otherwise optarg is set
to zero. */
if (optdecl[2] != ':') {
/* If the option was the last character in the string pointed to by
an element of argv, then optarg shall contain the next element
of argv, and optind shall be incremented by 2. If the resulting
value of optind is greater than argc, this indicates a missing
option-argument, and getopt() shall return an error indication.
Otherwise, optarg shall point to the string following the
option character in that element of argv, and optind shall be
incremented by 1.
*/
if (++optind < argc) {
optarg = argv[optind];
} else {
/* If it detects a missing option-argument, it shall return the
colon character ( ':' ) if the first character of optstring
was a colon, or a question-mark character ( '?' ) otherwise.
*/
optarg = NULL;
optchar = (optstring[0] == ':') ? ':' : '?';
}
} else {
optarg = NULL;
}
}
optcursor = NULL;
}
} else {
/* If getopt() encounters an option character that is not contained in
optstring, it shall return the question-mark ( '?' ) character. */
optchar = '?';
}
if (optcursor == NULL || *++optcursor == '\0')
++optind;
return optchar;
no_more_optchars:
optcursor = NULL;
return -1;
}
/* Implementation based on [1].
[1] http://www.kernel.org/doc/man-pages/online/pages/man3/getopt.3.html
*/
int getopt_long(int argc, char* const argv[], const char* optstring,
const struct option* longopts, int* longindex) {
const struct option* o = longopts;
const struct option* match = NULL;
int num_matches = 0;
size_t argument_name_length = 0;
const char* current_argument = NULL;
int retval = -1;
optarg = NULL;
optopt = 0;
if (optind >= argc)
return -1;
if (strlen(argv[optind]) < 3 || strncmp(argv[optind], "--", 2) != 0)
return getopt(argc, argv, optstring);
/* It's an option; starts with -- and is longer than two chars. */
current_argument = argv[optind] + 2;
argument_name_length = strcspn(current_argument, "=");
for (; o->name; ++o) {
if (strncmp(o->name, current_argument, argument_name_length) == 0) {
match = o;
++num_matches;
}
}
if (num_matches == 1) {
/* If longindex is not NULL, it points to a variable which is set to the
index of the long option relative to longopts. */
if (longindex)
*longindex = (int) (match - longopts);
/* If flag is NULL, then getopt_long() shall return val.
Otherwise, getopt_long() returns 0, and flag shall point to a variable
which shall be set to val if the option is found, but left unchanged if
the option is not found. */
if (match->flag)
*(match->flag) = match->val;
retval = match->flag ? 0 : match->val;
if (match->has_arg != no_argument) {
optarg = strchr(argv[optind], '=');
if (optarg != NULL)
++optarg;
if (match->has_arg == required_argument) {
/* Only scan the next argv for required arguments. Behavior is not
specified, but has been observed with Ubuntu and Mac OSX. */
if (optarg == NULL && ++optind < argc) {
optarg = argv[optind];
}
if (optarg == NULL)
retval = ':';
}
} else if (strchr(argv[optind], '=')) {
/* An argument was provided to a non-argument option.
I haven't seen this specified explicitly, but both GNU and BSD-based
implementations show this behavior.
*/
retval = '?';
}
} else {
/* Unknown option or ambiguous match. */
retval = '?';
}
++optind;
return retval;
}

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/* Copyright (c) 2012, Kim Gräsman
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* * Neither the name of Kim Gräsman nor the names of contributors may be used
* to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL KIM GRÄSMAN BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef INCLUDED_GETOPT_PORT_H
#define INCLUDED_GETOPT_PORT_H
#if defined(__cplusplus)
extern "C" {
#endif
extern const int no_argument;
extern const int required_argument;
extern const int optional_argument;
extern char* optarg;
extern int optind, opterr, optopt;
struct option {
const char* name;
int has_arg;
int* flag;
int val;
};
int getopt(int argc, char* const argv[], const char* optstring);
int getopt_long(int argc, char* const argv[],
const char* optstring, const struct option* longopts, int* longindex);
#if defined(__cplusplus)
}
#endif
#endif // INCLUDED_GETOPT_PORT_H

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#ifndef LINMATH_H
#define LINMATH_H
#include <string.h>
#include <math.h>
#include <string.h>
/* 2021-03-21 Camilla Löwy <elmindreda@elmindreda.org>
* - Replaced double constants with float equivalents
*/
#ifdef LINMATH_NO_INLINE
#define LINMATH_H_FUNC static
#else
#define LINMATH_H_FUNC static inline
#endif
#define LINMATH_H_DEFINE_VEC(n) \
typedef float vec##n[n]; \
LINMATH_H_FUNC void vec##n##_add(vec##n r, vec##n const a, vec##n const b) \
{ \
int i; \
for(i=0; i<n; ++i) \
r[i] = a[i] + b[i]; \
} \
LINMATH_H_FUNC void vec##n##_sub(vec##n r, vec##n const a, vec##n const b) \
{ \
int i; \
for(i=0; i<n; ++i) \
r[i] = a[i] - b[i]; \
} \
LINMATH_H_FUNC void vec##n##_scale(vec##n r, vec##n const v, float const s) \
{ \
int i; \
for(i=0; i<n; ++i) \
r[i] = v[i] * s; \
} \
LINMATH_H_FUNC float vec##n##_mul_inner(vec##n const a, vec##n const b) \
{ \
float p = 0.f; \
int i; \
for(i=0; i<n; ++i) \
p += b[i]*a[i]; \
return p; \
} \
LINMATH_H_FUNC float vec##n##_len(vec##n const v) \
{ \
return sqrtf(vec##n##_mul_inner(v,v)); \
} \
LINMATH_H_FUNC void vec##n##_norm(vec##n r, vec##n const v) \
{ \
float k = 1.f / vec##n##_len(v); \
vec##n##_scale(r, v, k); \
} \
LINMATH_H_FUNC void vec##n##_min(vec##n r, vec##n const a, vec##n const b) \
{ \
int i; \
for(i=0; i<n; ++i) \
r[i] = a[i]<b[i] ? a[i] : b[i]; \
} \
LINMATH_H_FUNC void vec##n##_max(vec##n r, vec##n const a, vec##n const b) \
{ \
int i; \
for(i=0; i<n; ++i) \
r[i] = a[i]>b[i] ? a[i] : b[i]; \
} \
LINMATH_H_FUNC void vec##n##_dup(vec##n r, vec##n const src) \
{ \
int i; \
for(i=0; i<n; ++i) \
r[i] = src[i]; \
}
LINMATH_H_DEFINE_VEC(2)
LINMATH_H_DEFINE_VEC(3)
LINMATH_H_DEFINE_VEC(4)
LINMATH_H_FUNC void vec3_mul_cross(vec3 r, vec3 const a, vec3 const b)
{
r[0] = a[1]*b[2] - a[2]*b[1];
r[1] = a[2]*b[0] - a[0]*b[2];
r[2] = a[0]*b[1] - a[1]*b[0];
}
LINMATH_H_FUNC void vec3_reflect(vec3 r, vec3 const v, vec3 const n)
{
float p = 2.f * vec3_mul_inner(v, n);
int i;
for(i=0;i<3;++i)
r[i] = v[i] - p*n[i];
}
LINMATH_H_FUNC void vec4_mul_cross(vec4 r, vec4 const a, vec4 const b)
{
r[0] = a[1]*b[2] - a[2]*b[1];
r[1] = a[2]*b[0] - a[0]*b[2];
r[2] = a[0]*b[1] - a[1]*b[0];
r[3] = 1.f;
}
LINMATH_H_FUNC void vec4_reflect(vec4 r, vec4 const v, vec4 const n)
{
float p = 2.f*vec4_mul_inner(v, n);
int i;
for(i=0;i<4;++i)
r[i] = v[i] - p*n[i];
}
typedef vec4 mat4x4[4];
LINMATH_H_FUNC void mat4x4_identity(mat4x4 M)
{
int i, j;
for(i=0; i<4; ++i)
for(j=0; j<4; ++j)
M[i][j] = i==j ? 1.f : 0.f;
}
LINMATH_H_FUNC void mat4x4_dup(mat4x4 M, mat4x4 const N)
{
int i;
for(i=0; i<4; ++i)
vec4_dup(M[i], N[i]);
}
LINMATH_H_FUNC void mat4x4_row(vec4 r, mat4x4 const M, int i)
{
int k;
for(k=0; k<4; ++k)
r[k] = M[k][i];
}
LINMATH_H_FUNC void mat4x4_col(vec4 r, mat4x4 const M, int i)
{
int k;
for(k=0; k<4; ++k)
r[k] = M[i][k];
}
LINMATH_H_FUNC void mat4x4_transpose(mat4x4 M, mat4x4 const N)
{
// Note: if M and N are the same, the user has to
// explicitly make a copy of M and set it to N.
int i, j;
for(j=0; j<4; ++j)
for(i=0; i<4; ++i)
M[i][j] = N[j][i];
}
LINMATH_H_FUNC void mat4x4_add(mat4x4 M, mat4x4 const a, mat4x4 const b)
{
int i;
for(i=0; i<4; ++i)
vec4_add(M[i], a[i], b[i]);
}
LINMATH_H_FUNC void mat4x4_sub(mat4x4 M, mat4x4 const a, mat4x4 const b)
{
int i;
for(i=0; i<4; ++i)
vec4_sub(M[i], a[i], b[i]);
}
LINMATH_H_FUNC void mat4x4_scale(mat4x4 M, mat4x4 const a, float k)
{
int i;
for(i=0; i<4; ++i)
vec4_scale(M[i], a[i], k);
}
LINMATH_H_FUNC void mat4x4_scale_aniso(mat4x4 M, mat4x4 const a, float x, float y, float z)
{
vec4_scale(M[0], a[0], x);
vec4_scale(M[1], a[1], y);
vec4_scale(M[2], a[2], z);
vec4_dup(M[3], a[3]);
}
LINMATH_H_FUNC void mat4x4_mul(mat4x4 M, mat4x4 const a, mat4x4 const b)
{
mat4x4 temp;
int k, r, c;
for(c=0; c<4; ++c) for(r=0; r<4; ++r) {
temp[c][r] = 0.f;
for(k=0; k<4; ++k)
temp[c][r] += a[k][r] * b[c][k];
}
mat4x4_dup(M, temp);
}
LINMATH_H_FUNC void mat4x4_mul_vec4(vec4 r, mat4x4 const M, vec4 const v)
{
int i, j;
for(j=0; j<4; ++j) {
r[j] = 0.f;
for(i=0; i<4; ++i)
r[j] += M[i][j] * v[i];
}
}
LINMATH_H_FUNC void mat4x4_translate(mat4x4 T, float x, float y, float z)
{
mat4x4_identity(T);
T[3][0] = x;
T[3][1] = y;
T[3][2] = z;
}
LINMATH_H_FUNC void mat4x4_translate_in_place(mat4x4 M, float x, float y, float z)
{
vec4 t = {x, y, z, 0};
vec4 r;
int i;
for (i = 0; i < 4; ++i) {
mat4x4_row(r, M, i);
M[3][i] += vec4_mul_inner(r, t);
}
}
LINMATH_H_FUNC void mat4x4_from_vec3_mul_outer(mat4x4 M, vec3 const a, vec3 const b)
{
int i, j;
for(i=0; i<4; ++i) for(j=0; j<4; ++j)
M[i][j] = i<3 && j<3 ? a[i] * b[j] : 0.f;
}
LINMATH_H_FUNC void mat4x4_rotate(mat4x4 R, mat4x4 const M, float x, float y, float z, float angle)
{
float s = sinf(angle);
float c = cosf(angle);
vec3 u = {x, y, z};
if(vec3_len(u) > 1e-4) {
vec3_norm(u, u);
mat4x4 T;
mat4x4_from_vec3_mul_outer(T, u, u);
mat4x4 S = {
{ 0, u[2], -u[1], 0},
{-u[2], 0, u[0], 0},
{ u[1], -u[0], 0, 0},
{ 0, 0, 0, 0}
};
mat4x4_scale(S, S, s);
mat4x4 C;
mat4x4_identity(C);
mat4x4_sub(C, C, T);
mat4x4_scale(C, C, c);
mat4x4_add(T, T, C);
mat4x4_add(T, T, S);
T[3][3] = 1.f;
mat4x4_mul(R, M, T);
} else {
mat4x4_dup(R, M);
}
}
LINMATH_H_FUNC void mat4x4_rotate_X(mat4x4 Q, mat4x4 const M, float angle)
{
float s = sinf(angle);
float c = cosf(angle);
mat4x4 R = {
{1.f, 0.f, 0.f, 0.f},
{0.f, c, s, 0.f},
{0.f, -s, c, 0.f},
{0.f, 0.f, 0.f, 1.f}
};
mat4x4_mul(Q, M, R);
}
LINMATH_H_FUNC void mat4x4_rotate_Y(mat4x4 Q, mat4x4 const M, float angle)
{
float s = sinf(angle);
float c = cosf(angle);
mat4x4 R = {
{ c, 0.f, -s, 0.f},
{ 0.f, 1.f, 0.f, 0.f},
{ s, 0.f, c, 0.f},
{ 0.f, 0.f, 0.f, 1.f}
};
mat4x4_mul(Q, M, R);
}
LINMATH_H_FUNC void mat4x4_rotate_Z(mat4x4 Q, mat4x4 const M, float angle)
{
float s = sinf(angle);
float c = cosf(angle);
mat4x4 R = {
{ c, s, 0.f, 0.f},
{ -s, c, 0.f, 0.f},
{ 0.f, 0.f, 1.f, 0.f},
{ 0.f, 0.f, 0.f, 1.f}
};
mat4x4_mul(Q, M, R);
}
LINMATH_H_FUNC void mat4x4_invert(mat4x4 T, mat4x4 const M)
{
float s[6];
float c[6];
s[0] = M[0][0]*M[1][1] - M[1][0]*M[0][1];
s[1] = M[0][0]*M[1][2] - M[1][0]*M[0][2];
s[2] = M[0][0]*M[1][3] - M[1][0]*M[0][3];
s[3] = M[0][1]*M[1][2] - M[1][1]*M[0][2];
s[4] = M[0][1]*M[1][3] - M[1][1]*M[0][3];
s[5] = M[0][2]*M[1][3] - M[1][2]*M[0][3];
c[0] = M[2][0]*M[3][1] - M[3][0]*M[2][1];
c[1] = M[2][0]*M[3][2] - M[3][0]*M[2][2];
c[2] = M[2][0]*M[3][3] - M[3][0]*M[2][3];
c[3] = M[2][1]*M[3][2] - M[3][1]*M[2][2];
c[4] = M[2][1]*M[3][3] - M[3][1]*M[2][3];
c[5] = M[2][2]*M[3][3] - M[3][2]*M[2][3];
/* Assumes it is invertible */
float idet = 1.0f/( s[0]*c[5]-s[1]*c[4]+s[2]*c[3]+s[3]*c[2]-s[4]*c[1]+s[5]*c[0] );
T[0][0] = ( M[1][1] * c[5] - M[1][2] * c[4] + M[1][3] * c[3]) * idet;
T[0][1] = (-M[0][1] * c[5] + M[0][2] * c[4] - M[0][3] * c[3]) * idet;
T[0][2] = ( M[3][1] * s[5] - M[3][2] * s[4] + M[3][3] * s[3]) * idet;
T[0][3] = (-M[2][1] * s[5] + M[2][2] * s[4] - M[2][3] * s[3]) * idet;
T[1][0] = (-M[1][0] * c[5] + M[1][2] * c[2] - M[1][3] * c[1]) * idet;
T[1][1] = ( M[0][0] * c[5] - M[0][2] * c[2] + M[0][3] * c[1]) * idet;
T[1][2] = (-M[3][0] * s[5] + M[3][2] * s[2] - M[3][3] * s[1]) * idet;
T[1][3] = ( M[2][0] * s[5] - M[2][2] * s[2] + M[2][3] * s[1]) * idet;
T[2][0] = ( M[1][0] * c[4] - M[1][1] * c[2] + M[1][3] * c[0]) * idet;
T[2][1] = (-M[0][0] * c[4] + M[0][1] * c[2] - M[0][3] * c[0]) * idet;
T[2][2] = ( M[3][0] * s[4] - M[3][1] * s[2] + M[3][3] * s[0]) * idet;
T[2][3] = (-M[2][0] * s[4] + M[2][1] * s[2] - M[2][3] * s[0]) * idet;
T[3][0] = (-M[1][0] * c[3] + M[1][1] * c[1] - M[1][2] * c[0]) * idet;
T[3][1] = ( M[0][0] * c[3] - M[0][1] * c[1] + M[0][2] * c[0]) * idet;
T[3][2] = (-M[3][0] * s[3] + M[3][1] * s[1] - M[3][2] * s[0]) * idet;
T[3][3] = ( M[2][0] * s[3] - M[2][1] * s[1] + M[2][2] * s[0]) * idet;
}
LINMATH_H_FUNC void mat4x4_orthonormalize(mat4x4 R, mat4x4 const M)
{
mat4x4_dup(R, M);
float s = 1.f;
vec3 h;
vec3_norm(R[2], R[2]);
s = vec3_mul_inner(R[1], R[2]);
vec3_scale(h, R[2], s);
vec3_sub(R[1], R[1], h);
vec3_norm(R[1], R[1]);
s = vec3_mul_inner(R[0], R[2]);
vec3_scale(h, R[2], s);
vec3_sub(R[0], R[0], h);
s = vec3_mul_inner(R[0], R[1]);
vec3_scale(h, R[1], s);
vec3_sub(R[0], R[0], h);
vec3_norm(R[0], R[0]);
}
LINMATH_H_FUNC void mat4x4_frustum(mat4x4 M, float l, float r, float b, float t, float n, float f)
{
M[0][0] = 2.f*n/(r-l);
M[0][1] = M[0][2] = M[0][3] = 0.f;
M[1][1] = 2.f*n/(t-b);
M[1][0] = M[1][2] = M[1][3] = 0.f;
M[2][0] = (r+l)/(r-l);
M[2][1] = (t+b)/(t-b);
M[2][2] = -(f+n)/(f-n);
M[2][3] = -1.f;
M[3][2] = -2.f*(f*n)/(f-n);
M[3][0] = M[3][1] = M[3][3] = 0.f;
}
LINMATH_H_FUNC void mat4x4_ortho(mat4x4 M, float l, float r, float b, float t, float n, float f)
{
M[0][0] = 2.f/(r-l);
M[0][1] = M[0][2] = M[0][3] = 0.f;
M[1][1] = 2.f/(t-b);
M[1][0] = M[1][2] = M[1][3] = 0.f;
M[2][2] = -2.f/(f-n);
M[2][0] = M[2][1] = M[2][3] = 0.f;
M[3][0] = -(r+l)/(r-l);
M[3][1] = -(t+b)/(t-b);
M[3][2] = -(f+n)/(f-n);
M[3][3] = 1.f;
}
LINMATH_H_FUNC void mat4x4_perspective(mat4x4 m, float y_fov, float aspect, float n, float f)
{
/* NOTE: Degrees are an unhandy unit to work with.
* linmath.h uses radians for everything! */
float const a = 1.f / tanf(y_fov / 2.f);
m[0][0] = a / aspect;
m[0][1] = 0.f;
m[0][2] = 0.f;
m[0][3] = 0.f;
m[1][0] = 0.f;
m[1][1] = a;
m[1][2] = 0.f;
m[1][3] = 0.f;
m[2][0] = 0.f;
m[2][1] = 0.f;
m[2][2] = -((f + n) / (f - n));
m[2][3] = -1.f;
m[3][0] = 0.f;
m[3][1] = 0.f;
m[3][2] = -((2.f * f * n) / (f - n));
m[3][3] = 0.f;
}
LINMATH_H_FUNC void mat4x4_look_at(mat4x4 m, vec3 const eye, vec3 const center, vec3 const up)
{
/* Adapted from Android's OpenGL Matrix.java. */
/* See the OpenGL GLUT documentation for gluLookAt for a description */
/* of the algorithm. We implement it in a straightforward way: */
/* TODO: The negation of of can be spared by swapping the order of
* operands in the following cross products in the right way. */
vec3 f;
vec3_sub(f, center, eye);
vec3_norm(f, f);
vec3 s;
vec3_mul_cross(s, f, up);
vec3_norm(s, s);
vec3 t;
vec3_mul_cross(t, s, f);
m[0][0] = s[0];
m[0][1] = t[0];
m[0][2] = -f[0];
m[0][3] = 0.f;
m[1][0] = s[1];
m[1][1] = t[1];
m[1][2] = -f[1];
m[1][3] = 0.f;
m[2][0] = s[2];
m[2][1] = t[2];
m[2][2] = -f[2];
m[2][3] = 0.f;
m[3][0] = 0.f;
m[3][1] = 0.f;
m[3][2] = 0.f;
m[3][3] = 1.f;
mat4x4_translate_in_place(m, -eye[0], -eye[1], -eye[2]);
}
typedef float quat[4];
#define quat_add vec4_add
#define quat_sub vec4_sub
#define quat_norm vec4_norm
#define quat_scale vec4_scale
#define quat_mul_inner vec4_mul_inner
LINMATH_H_FUNC void quat_identity(quat q)
{
q[0] = q[1] = q[2] = 0.f;
q[3] = 1.f;
}
LINMATH_H_FUNC void quat_mul(quat r, quat const p, quat const q)
{
vec3 w;
vec3_mul_cross(r, p, q);
vec3_scale(w, p, q[3]);
vec3_add(r, r, w);
vec3_scale(w, q, p[3]);
vec3_add(r, r, w);
r[3] = p[3]*q[3] - vec3_mul_inner(p, q);
}
LINMATH_H_FUNC void quat_conj(quat r, quat const q)
{
int i;
for(i=0; i<3; ++i)
r[i] = -q[i];
r[3] = q[3];
}
LINMATH_H_FUNC void quat_rotate(quat r, float angle, vec3 const axis) {
vec3 axis_norm;
vec3_norm(axis_norm, axis);
float s = sinf(angle / 2);
float c = cosf(angle / 2);
vec3_scale(r, axis_norm, s);
r[3] = c;
}
LINMATH_H_FUNC void quat_mul_vec3(vec3 r, quat const q, vec3 const v)
{
/*
* Method by Fabian 'ryg' Giessen (of Farbrausch)
t = 2 * cross(q.xyz, v)
v' = v + q.w * t + cross(q.xyz, t)
*/
vec3 t;
vec3 q_xyz = {q[0], q[1], q[2]};
vec3 u = {q[0], q[1], q[2]};
vec3_mul_cross(t, q_xyz, v);
vec3_scale(t, t, 2);
vec3_mul_cross(u, q_xyz, t);
vec3_scale(t, t, q[3]);
vec3_add(r, v, t);
vec3_add(r, r, u);
}
LINMATH_H_FUNC void mat4x4_from_quat(mat4x4 M, quat const q)
{
float a = q[3];
float b = q[0];
float c = q[1];
float d = q[2];
float a2 = a*a;
float b2 = b*b;
float c2 = c*c;
float d2 = d*d;
M[0][0] = a2 + b2 - c2 - d2;
M[0][1] = 2.f*(b*c + a*d);
M[0][2] = 2.f*(b*d - a*c);
M[0][3] = 0.f;
M[1][0] = 2*(b*c - a*d);
M[1][1] = a2 - b2 + c2 - d2;
M[1][2] = 2.f*(c*d + a*b);
M[1][3] = 0.f;
M[2][0] = 2.f*(b*d + a*c);
M[2][1] = 2.f*(c*d - a*b);
M[2][2] = a2 - b2 - c2 + d2;
M[2][3] = 0.f;
M[3][0] = M[3][1] = M[3][2] = 0.f;
M[3][3] = 1.f;
}
LINMATH_H_FUNC void mat4x4o_mul_quat(mat4x4 R, mat4x4 const M, quat const q)
{
/* XXX: The way this is written only works for orthogonal matrices. */
/* TODO: Take care of non-orthogonal case. */
quat_mul_vec3(R[0], q, M[0]);
quat_mul_vec3(R[1], q, M[1]);
quat_mul_vec3(R[2], q, M[2]);
R[3][0] = R[3][1] = R[3][2] = 0.f;
R[0][3] = M[0][3];
R[1][3] = M[1][3];
R[2][3] = M[2][3];
R[3][3] = M[3][3]; // typically 1.0, but here we make it general
}
LINMATH_H_FUNC void quat_from_mat4x4(quat q, mat4x4 const M)
{
float r=0.f;
int i;
int perm[] = { 0, 1, 2, 0, 1 };
int *p = perm;
for(i = 0; i<3; i++) {
float m = M[i][i];
if( m < r )
continue;
m = r;
p = &perm[i];
}
r = sqrtf(1.f + M[p[0]][p[0]] - M[p[1]][p[1]] - M[p[2]][p[2]] );
if(r < 1e-6) {
q[0] = 1.f;
q[1] = q[2] = q[3] = 0.f;
return;
}
q[0] = r/2.f;
q[1] = (M[p[0]][p[1]] - M[p[1]][p[0]])/(2.f*r);
q[2] = (M[p[2]][p[0]] - M[p[0]][p[2]])/(2.f*r);
q[3] = (M[p[2]][p[1]] - M[p[1]][p[2]])/(2.f*r);
}
LINMATH_H_FUNC void mat4x4_arcball(mat4x4 R, mat4x4 const M, vec2 const _a, vec2 const _b, float s)
{
vec2 a; memcpy(a, _a, sizeof(a));
vec2 b; memcpy(b, _b, sizeof(b));
float z_a = 0.f;
float z_b = 0.f;
if(vec2_len(a) < 1.f) {
z_a = sqrtf(1.f - vec2_mul_inner(a, a));
} else {
vec2_norm(a, a);
}
if(vec2_len(b) < 1.f) {
z_b = sqrtf(1.f - vec2_mul_inner(b, b));
} else {
vec2_norm(b, b);
}
vec3 a_ = {a[0], a[1], z_a};
vec3 b_ = {b[0], b[1], z_b};
vec3 c_;
vec3_mul_cross(c_, a_, b_);
float const angle = acos(vec3_mul_inner(a_, b_)) * s;
mat4x4_rotate(R, M, c_[0], c_[1], c_[2], angle);
}
#endif

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thirdparty/glfw/deps/mingw/_mingw_dxhelper.h vendored
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/**
* This file has no copyright assigned and is placed in the Public Domain.
* This file is part of the mingw-w64 runtime package.
* No warranty is given; refer to the file DISCLAIMER within this package.
*/
#if defined(_MSC_VER) && !defined(_MSC_EXTENSIONS)
#define NONAMELESSUNION 1
#endif
#if defined(NONAMELESSSTRUCT) && \
!defined(NONAMELESSUNION)
#define NONAMELESSUNION 1
#endif
#if defined(NONAMELESSUNION) && \
!defined(NONAMELESSSTRUCT)
#define NONAMELESSSTRUCT 1
#endif
#if !defined(__GNU_EXTENSION)
#if defined(__GNUC__) || defined(__GNUG__)
#define __GNU_EXTENSION __extension__
#else
#define __GNU_EXTENSION
#endif
#endif /* __extension__ */
#ifndef __ANONYMOUS_DEFINED
#define __ANONYMOUS_DEFINED
#if defined(__GNUC__) || defined(__GNUG__)
#define _ANONYMOUS_UNION __extension__
#define _ANONYMOUS_STRUCT __extension__
#else
#define _ANONYMOUS_UNION
#define _ANONYMOUS_STRUCT
#endif
#ifndef NONAMELESSUNION
#define _UNION_NAME(x)
#define _STRUCT_NAME(x)
#else /* NONAMELESSUNION */
#define _UNION_NAME(x) x
#define _STRUCT_NAME(x) x
#endif
#endif /* __ANONYMOUS_DEFINED */
#ifndef DUMMYUNIONNAME
# ifdef NONAMELESSUNION
# define DUMMYUNIONNAME u
# define DUMMYUNIONNAME1 u1 /* Wine uses this variant */
# define DUMMYUNIONNAME2 u2
# define DUMMYUNIONNAME3 u3
# define DUMMYUNIONNAME4 u4
# define DUMMYUNIONNAME5 u5
# define DUMMYUNIONNAME6 u6
# define DUMMYUNIONNAME7 u7
# define DUMMYUNIONNAME8 u8
# define DUMMYUNIONNAME9 u9
# else /* NONAMELESSUNION */
# define DUMMYUNIONNAME
# define DUMMYUNIONNAME1 /* Wine uses this variant */
# define DUMMYUNIONNAME2
# define DUMMYUNIONNAME3
# define DUMMYUNIONNAME4
# define DUMMYUNIONNAME5
# define DUMMYUNIONNAME6
# define DUMMYUNIONNAME7
# define DUMMYUNIONNAME8
# define DUMMYUNIONNAME9
# endif
#endif /* DUMMYUNIONNAME */
#if !defined(DUMMYUNIONNAME1) /* MinGW does not define this one */
# ifdef NONAMELESSUNION
# define DUMMYUNIONNAME1 u1 /* Wine uses this variant */
# else
# define DUMMYUNIONNAME1 /* Wine uses this variant */
# endif
#endif /* DUMMYUNIONNAME1 */
#ifndef DUMMYSTRUCTNAME
# ifdef NONAMELESSUNION
# define DUMMYSTRUCTNAME s
# define DUMMYSTRUCTNAME1 s1 /* Wine uses this variant */
# define DUMMYSTRUCTNAME2 s2
# define DUMMYSTRUCTNAME3 s3
# define DUMMYSTRUCTNAME4 s4
# define DUMMYSTRUCTNAME5 s5
# else
# define DUMMYSTRUCTNAME
# define DUMMYSTRUCTNAME1 /* Wine uses this variant */
# define DUMMYSTRUCTNAME2
# define DUMMYSTRUCTNAME3
# define DUMMYSTRUCTNAME4
# define DUMMYSTRUCTNAME5
# endif
#endif /* DUMMYSTRUCTNAME */
/* These are for compatibility with the Wine source tree */
#ifndef WINELIB_NAME_AW
# ifdef __MINGW_NAME_AW
# define WINELIB_NAME_AW __MINGW_NAME_AW
# else
# ifdef UNICODE
# define WINELIB_NAME_AW(func) func##W
# else
# define WINELIB_NAME_AW(func) func##A
# endif
# endif
#endif /* WINELIB_NAME_AW */
#ifndef DECL_WINELIB_TYPE_AW
# ifdef __MINGW_TYPEDEF_AW
# define DECL_WINELIB_TYPE_AW __MINGW_TYPEDEF_AW
# else
# define DECL_WINELIB_TYPE_AW(type) typedef WINELIB_NAME_AW(type) type;
# endif
#endif /* DECL_WINELIB_TYPE_AW */

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thirdparty/glfw/deps/mingw/dinput.h vendored
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thirdparty/glfw/deps/mingw/xinput.h vendored
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/*
* The Wine project - Xinput Joystick Library
* Copyright 2008 Andrew Fenn
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef __WINE_XINPUT_H
#define __WINE_XINPUT_H
#include <windef.h>
/*
* Bitmasks for the joysticks buttons, determines what has
* been pressed on the joystick, these need to be mapped
* to whatever device you're using instead of an xbox 360
* joystick
*/
#define XINPUT_GAMEPAD_DPAD_UP 0x0001
#define XINPUT_GAMEPAD_DPAD_DOWN 0x0002
#define XINPUT_GAMEPAD_DPAD_LEFT 0x0004
#define XINPUT_GAMEPAD_DPAD_RIGHT 0x0008
#define XINPUT_GAMEPAD_START 0x0010
#define XINPUT_GAMEPAD_BACK 0x0020
#define XINPUT_GAMEPAD_LEFT_THUMB 0x0040
#define XINPUT_GAMEPAD_RIGHT_THUMB 0x0080
#define XINPUT_GAMEPAD_LEFT_SHOULDER 0x0100
#define XINPUT_GAMEPAD_RIGHT_SHOULDER 0x0200
#define XINPUT_GAMEPAD_A 0x1000
#define XINPUT_GAMEPAD_B 0x2000
#define XINPUT_GAMEPAD_X 0x4000
#define XINPUT_GAMEPAD_Y 0x8000
/*
* Defines the flags used to determine if the user is pushing
* down on a button, not holding a button, etc
*/
#define XINPUT_KEYSTROKE_KEYDOWN 0x0001
#define XINPUT_KEYSTROKE_KEYUP 0x0002
#define XINPUT_KEYSTROKE_REPEAT 0x0004
/*
* Defines the codes which are returned by XInputGetKeystroke
*/
#define VK_PAD_A 0x5800
#define VK_PAD_B 0x5801
#define VK_PAD_X 0x5802
#define VK_PAD_Y 0x5803
#define VK_PAD_RSHOULDER 0x5804
#define VK_PAD_LSHOULDER 0x5805
#define VK_PAD_LTRIGGER 0x5806
#define VK_PAD_RTRIGGER 0x5807
#define VK_PAD_DPAD_UP 0x5810
#define VK_PAD_DPAD_DOWN 0x5811
#define VK_PAD_DPAD_LEFT 0x5812
#define VK_PAD_DPAD_RIGHT 0x5813
#define VK_PAD_START 0x5814
#define VK_PAD_BACK 0x5815
#define VK_PAD_LTHUMB_PRESS 0x5816
#define VK_PAD_RTHUMB_PRESS 0x5817
#define VK_PAD_LTHUMB_UP 0x5820
#define VK_PAD_LTHUMB_DOWN 0x5821
#define VK_PAD_LTHUMB_RIGHT 0x5822
#define VK_PAD_LTHUMB_LEFT 0x5823
#define VK_PAD_LTHUMB_UPLEFT 0x5824
#define VK_PAD_LTHUMB_UPRIGHT 0x5825
#define VK_PAD_LTHUMB_DOWNRIGHT 0x5826
#define VK_PAD_LTHUMB_DOWNLEFT 0x5827
#define VK_PAD_RTHUMB_UP 0x5830
#define VK_PAD_RTHUMB_DOWN 0x5831
#define VK_PAD_RTHUMB_RIGHT 0x5832
#define VK_PAD_RTHUMB_LEFT 0x5833
#define VK_PAD_RTHUMB_UPLEFT 0x5834
#define VK_PAD_RTHUMB_UPRIGHT 0x5835
#define VK_PAD_RTHUMB_DOWNRIGHT 0x5836
#define VK_PAD_RTHUMB_DOWNLEFT 0x5837
/*
* Deadzones are for analogue joystick controls on the joypad
* which determine when input should be assumed to be in the
* middle of the pad. This is a threshold to stop a joypad
* controlling the game when the player isn't touching the
* controls.
*/
#define XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE 7849
#define XINPUT_GAMEPAD_RIGHT_THUMB_DEADZONE 8689
#define XINPUT_GAMEPAD_TRIGGER_THRESHOLD 30
/*
* Defines what type of abilities the type of joystick has
* DEVTYPE_GAMEPAD is available for all joysticks, however
* there may be more specific identifiers for other joysticks
* which are being used.
*/
#define XINPUT_DEVTYPE_GAMEPAD 0x01
#define XINPUT_DEVSUBTYPE_GAMEPAD 0x01
#define XINPUT_DEVSUBTYPE_WHEEL 0x02
#define XINPUT_DEVSUBTYPE_ARCADE_STICK 0x03
#define XINPUT_DEVSUBTYPE_FLIGHT_SICK 0x04
#define XINPUT_DEVSUBTYPE_DANCE_PAD 0x05
#define XINPUT_DEVSUBTYPE_GUITAR 0x06
#define XINPUT_DEVSUBTYPE_DRUM_KIT 0x08
/*
* These are used with the XInputGetCapabilities function to
* determine the abilities to the joystick which has been
* plugged in.
*/
#define XINPUT_CAPS_VOICE_SUPPORTED 0x0004
#define XINPUT_FLAG_GAMEPAD 0x00000001
/*
* Defines the status of the battery if one is used in the
* attached joystick. The first two define if the joystick
* supports a battery. Disconnected means that the joystick
* isn't connected. Wired shows that the joystick is a wired
* joystick.
*/
#define BATTERY_DEVTYPE_GAMEPAD 0x00
#define BATTERY_DEVTYPE_HEADSET 0x01
#define BATTERY_TYPE_DISCONNECTED 0x00
#define BATTERY_TYPE_WIRED 0x01
#define BATTERY_TYPE_ALKALINE 0x02
#define BATTERY_TYPE_NIMH 0x03
#define BATTERY_TYPE_UNKNOWN 0xFF
#define BATTERY_LEVEL_EMPTY 0x00
#define BATTERY_LEVEL_LOW 0x01
#define BATTERY_LEVEL_MEDIUM 0x02
#define BATTERY_LEVEL_FULL 0x03
/*
* How many joysticks can be used with this library. Games that
* use the xinput library will not go over this number.
*/
#define XUSER_MAX_COUNT 4
#define XUSER_INDEX_ANY 0x000000FF
/*
* Defines the structure of an xbox 360 joystick.
*/
typedef struct _XINPUT_GAMEPAD {
WORD wButtons;
BYTE bLeftTrigger;
BYTE bRightTrigger;
SHORT sThumbLX;
SHORT sThumbLY;
SHORT sThumbRX;
SHORT sThumbRY;
} XINPUT_GAMEPAD, *PXINPUT_GAMEPAD;
typedef struct _XINPUT_STATE {
DWORD dwPacketNumber;
XINPUT_GAMEPAD Gamepad;
} XINPUT_STATE, *PXINPUT_STATE;
/*
* Defines the structure of how much vibration is set on both the
* right and left motors in a joystick. If you're not using a 360
* joystick you will have to map these to your device.
*/
typedef struct _XINPUT_VIBRATION {
WORD wLeftMotorSpeed;
WORD wRightMotorSpeed;
} XINPUT_VIBRATION, *PXINPUT_VIBRATION;
/*
* Defines the structure for what kind of abilities the joystick has
* such abilities are things such as if the joystick has the ability
* to send and receive audio, if the joystick is in fact a driving
* wheel or perhaps if the joystick is some kind of dance pad or
* guitar.
*/
typedef struct _XINPUT_CAPABILITIES {
BYTE Type;
BYTE SubType;
WORD Flags;
XINPUT_GAMEPAD Gamepad;
XINPUT_VIBRATION Vibration;
} XINPUT_CAPABILITIES, *PXINPUT_CAPABILITIES;
/*
* Defines the structure for a joystick input event which is
* retrieved using the function XInputGetKeystroke
*/
typedef struct _XINPUT_KEYSTROKE {
WORD VirtualKey;
WCHAR Unicode;
WORD Flags;
BYTE UserIndex;
BYTE HidCode;
} XINPUT_KEYSTROKE, *PXINPUT_KEYSTROKE;
typedef struct _XINPUT_BATTERY_INFORMATION
{
BYTE BatteryType;
BYTE BatteryLevel;
} XINPUT_BATTERY_INFORMATION, *PXINPUT_BATTERY_INFORMATION;
#ifdef __cplusplus
extern "C" {
#endif
void WINAPI XInputEnable(WINBOOL);
DWORD WINAPI XInputSetState(DWORD, XINPUT_VIBRATION*);
DWORD WINAPI XInputGetState(DWORD, XINPUT_STATE*);
DWORD WINAPI XInputGetKeystroke(DWORD, DWORD, PXINPUT_KEYSTROKE);
DWORD WINAPI XInputGetCapabilities(DWORD, DWORD, XINPUT_CAPABILITIES*);
DWORD WINAPI XInputGetDSoundAudioDeviceGuids(DWORD, GUID*, GUID*);
DWORD WINAPI XInputGetBatteryInformation(DWORD, BYTE, XINPUT_BATTERY_INFORMATION*);
#ifdef __cplusplus
}
#endif
#endif /* __WINE_XINPUT_H */

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thirdparty/glfw/deps/nuklear_glfw_gl2.h vendored
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/*
* Nuklear - v1.32.0 - public domain
* no warrenty implied; use at your own risk.
* authored from 2015-2017 by Micha Mettke
*/
/*
* ==============================================================
*
* API
*
* ===============================================================
*/
#ifndef NK_GLFW_GL2_H_
#define NK_GLFW_GL2_H_
#include <GLFW/glfw3.h>
enum nk_glfw_init_state{
NK_GLFW3_DEFAULT = 0,
NK_GLFW3_INSTALL_CALLBACKS
};
NK_API struct nk_context* nk_glfw3_init(GLFWwindow *win, enum nk_glfw_init_state);
NK_API void nk_glfw3_font_stash_begin(struct nk_font_atlas **atlas);
NK_API void nk_glfw3_font_stash_end(void);
NK_API void nk_glfw3_new_frame(void);
NK_API void nk_glfw3_render(enum nk_anti_aliasing);
NK_API void nk_glfw3_shutdown(void);
NK_API void nk_glfw3_char_callback(GLFWwindow *win, unsigned int codepoint);
NK_API void nk_gflw3_scroll_callback(GLFWwindow *win, double xoff, double yoff);
#endif
/*
* ==============================================================
*
* IMPLEMENTATION
*
* ===============================================================
*/
#ifdef NK_GLFW_GL2_IMPLEMENTATION
#ifndef NK_GLFW_TEXT_MAX
#define NK_GLFW_TEXT_MAX 256
#endif
#ifndef NK_GLFW_DOUBLE_CLICK_LO
#define NK_GLFW_DOUBLE_CLICK_LO 0.02
#endif
#ifndef NK_GLFW_DOUBLE_CLICK_HI
#define NK_GLFW_DOUBLE_CLICK_HI 0.2
#endif
struct nk_glfw_device {
struct nk_buffer cmds;
struct nk_draw_null_texture null;
GLuint font_tex;
};
struct nk_glfw_vertex {
float position[2];
float uv[2];
nk_byte col[4];
};
static struct nk_glfw {
GLFWwindow *win;
int width, height;
int display_width, display_height;
struct nk_glfw_device ogl;
struct nk_context ctx;
struct nk_font_atlas atlas;
struct nk_vec2 fb_scale;
unsigned int text[NK_GLFW_TEXT_MAX];
int text_len;
struct nk_vec2 scroll;
double last_button_click;
int is_double_click_down;
struct nk_vec2 double_click_pos;
} glfw;
NK_INTERN void
nk_glfw3_device_upload_atlas(const void *image, int width, int height)
{
struct nk_glfw_device *dev = &glfw.ogl;
glGenTextures(1, &dev->font_tex);
glBindTexture(GL_TEXTURE_2D, dev->font_tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (GLsizei)width, (GLsizei)height, 0,
GL_RGBA, GL_UNSIGNED_BYTE, image);
}
NK_API void
nk_glfw3_render(enum nk_anti_aliasing AA)
{
/* setup global state */
struct nk_glfw_device *dev = &glfw.ogl;
glPushAttrib(GL_ENABLE_BIT|GL_COLOR_BUFFER_BIT|GL_TRANSFORM_BIT);
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glEnable(GL_SCISSOR_TEST);
glEnable(GL_BLEND);
glEnable(GL_TEXTURE_2D);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
/* setup viewport/project */
glViewport(0,0,(GLsizei)glfw.display_width,(GLsizei)glfw.display_height);
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glOrtho(0.0f, glfw.width, glfw.height, 0.0f, -1.0f, 1.0f);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glEnableClientState(GL_COLOR_ARRAY);
{
GLsizei vs = sizeof(struct nk_glfw_vertex);
size_t vp = offsetof(struct nk_glfw_vertex, position);
size_t vt = offsetof(struct nk_glfw_vertex, uv);
size_t vc = offsetof(struct nk_glfw_vertex, col);
/* convert from command queue into draw list and draw to screen */
const struct nk_draw_command *cmd;
const nk_draw_index *offset = NULL;
struct nk_buffer vbuf, ebuf;
/* fill convert configuration */
struct nk_convert_config config;
static const struct nk_draw_vertex_layout_element vertex_layout[] = {
{NK_VERTEX_POSITION, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_glfw_vertex, position)},
{NK_VERTEX_TEXCOORD, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_glfw_vertex, uv)},
{NK_VERTEX_COLOR, NK_FORMAT_R8G8B8A8, NK_OFFSETOF(struct nk_glfw_vertex, col)},
{NK_VERTEX_LAYOUT_END}
};
NK_MEMSET(&config, 0, sizeof(config));
config.vertex_layout = vertex_layout;
config.vertex_size = sizeof(struct nk_glfw_vertex);
config.vertex_alignment = NK_ALIGNOF(struct nk_glfw_vertex);
config.null = dev->null;
config.circle_segment_count = 22;
config.curve_segment_count = 22;
config.arc_segment_count = 22;
config.global_alpha = 1.0f;
config.shape_AA = AA;
config.line_AA = AA;
/* convert shapes into vertexes */
nk_buffer_init_default(&vbuf);
nk_buffer_init_default(&ebuf);
nk_convert(&glfw.ctx, &dev->cmds, &vbuf, &ebuf, &config);
/* setup vertex buffer pointer */
{const void *vertices = nk_buffer_memory_const(&vbuf);
glVertexPointer(2, GL_FLOAT, vs, (const void*)((const nk_byte*)vertices + vp));
glTexCoordPointer(2, GL_FLOAT, vs, (const void*)((const nk_byte*)vertices + vt));
glColorPointer(4, GL_UNSIGNED_BYTE, vs, (const void*)((const nk_byte*)vertices + vc));}
/* iterate over and execute each draw command */
offset = (const nk_draw_index*)nk_buffer_memory_const(&ebuf);
nk_draw_foreach(cmd, &glfw.ctx, &dev->cmds)
{
if (!cmd->elem_count) continue;
glBindTexture(GL_TEXTURE_2D, (GLuint)cmd->texture.id);
glScissor(
(GLint)(cmd->clip_rect.x * glfw.fb_scale.x),
(GLint)((glfw.height - (GLint)(cmd->clip_rect.y + cmd->clip_rect.h)) * glfw.fb_scale.y),
(GLint)(cmd->clip_rect.w * glfw.fb_scale.x),
(GLint)(cmd->clip_rect.h * glfw.fb_scale.y));
glDrawElements(GL_TRIANGLES, (GLsizei)cmd->elem_count, GL_UNSIGNED_SHORT, offset);
offset += cmd->elem_count;
}
nk_clear(&glfw.ctx);
nk_buffer_free(&vbuf);
nk_buffer_free(&ebuf);
}
/* default OpenGL state */
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisableClientState(GL_COLOR_ARRAY);
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glDisable(GL_SCISSOR_TEST);
glDisable(GL_BLEND);
glDisable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, 0);
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glPopAttrib();
}
NK_API void
nk_glfw3_char_callback(GLFWwindow *win, unsigned int codepoint)
{
(void)win;
if (glfw.text_len < NK_GLFW_TEXT_MAX)
glfw.text[glfw.text_len++] = codepoint;
}
NK_API void
nk_gflw3_scroll_callback(GLFWwindow *win, double xoff, double yoff)
{
(void)win; (void)xoff;
glfw.scroll.x += (float)xoff;
glfw.scroll.y += (float)yoff;
}
NK_API void
nk_glfw3_mouse_button_callback(GLFWwindow* window, int button, int action, int mods)
{
double x, y;
if (button != GLFW_MOUSE_BUTTON_LEFT) return;
glfwGetCursorPos(window, &x, &y);
if (action == GLFW_PRESS) {
double dt = glfwGetTime() - glfw.last_button_click;
if (dt > NK_GLFW_DOUBLE_CLICK_LO && dt < NK_GLFW_DOUBLE_CLICK_HI) {
glfw.is_double_click_down = nk_true;
glfw.double_click_pos = nk_vec2((float)x, (float)y);
}
glfw.last_button_click = glfwGetTime();
} else glfw.is_double_click_down = nk_false;
}
NK_INTERN void
nk_glfw3_clipboard_paste(nk_handle usr, struct nk_text_edit *edit)
{
const char *text = glfwGetClipboardString(glfw.win);
if (text) nk_textedit_paste(edit, text, nk_strlen(text));
(void)usr;
}
NK_INTERN void
nk_glfw3_clipboard_copy(nk_handle usr, const char *text, int len)
{
char *str = 0;
(void)usr;
if (!len) return;
str = (char*)malloc((size_t)len+1);
if (!str) return;
NK_MEMCPY(str, text, (size_t)len);
str[len] = '\0';
glfwSetClipboardString(glfw.win, str);
free(str);
}
NK_API struct nk_context*
nk_glfw3_init(GLFWwindow *win, enum nk_glfw_init_state init_state)
{
glfw.win = win;
if (init_state == NK_GLFW3_INSTALL_CALLBACKS) {
glfwSetScrollCallback(win, nk_gflw3_scroll_callback);
glfwSetCharCallback(win, nk_glfw3_char_callback);
glfwSetMouseButtonCallback(win, nk_glfw3_mouse_button_callback);
}
nk_init_default(&glfw.ctx, 0);
glfw.ctx.clip.copy = nk_glfw3_clipboard_copy;
glfw.ctx.clip.paste = nk_glfw3_clipboard_paste;
glfw.ctx.clip.userdata = nk_handle_ptr(0);
nk_buffer_init_default(&glfw.ogl.cmds);
glfw.is_double_click_down = nk_false;
glfw.double_click_pos = nk_vec2(0, 0);
return &glfw.ctx;
}
NK_API void
nk_glfw3_font_stash_begin(struct nk_font_atlas **atlas)
{
nk_font_atlas_init_default(&glfw.atlas);
nk_font_atlas_begin(&glfw.atlas);
*atlas = &glfw.atlas;
}
NK_API void
nk_glfw3_font_stash_end(void)
{
const void *image; int w, h;
image = nk_font_atlas_bake(&glfw.atlas, &w, &h, NK_FONT_ATLAS_RGBA32);
nk_glfw3_device_upload_atlas(image, w, h);
nk_font_atlas_end(&glfw.atlas, nk_handle_id((int)glfw.ogl.font_tex), &glfw.ogl.null);
if (glfw.atlas.default_font)
nk_style_set_font(&glfw.ctx, &glfw.atlas.default_font->handle);
}
NK_API void
nk_glfw3_new_frame(void)
{
int i;
double x, y;
struct nk_context *ctx = &glfw.ctx;
struct GLFWwindow *win = glfw.win;
glfwGetWindowSize(win, &glfw.width, &glfw.height);
glfwGetFramebufferSize(win, &glfw.display_width, &glfw.display_height);
glfw.fb_scale.x = (float)glfw.display_width/(float)glfw.width;
glfw.fb_scale.y = (float)glfw.display_height/(float)glfw.height;
nk_input_begin(ctx);
for (i = 0; i < glfw.text_len; ++i)
nk_input_unicode(ctx, glfw.text[i]);
/* optional grabbing behavior */
if (ctx->input.mouse.grab)
glfwSetInputMode(glfw.win, GLFW_CURSOR, GLFW_CURSOR_HIDDEN);
else if (ctx->input.mouse.ungrab)
glfwSetInputMode(glfw.win, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
nk_input_key(ctx, NK_KEY_DEL, glfwGetKey(win, GLFW_KEY_DELETE) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_ENTER, glfwGetKey(win, GLFW_KEY_ENTER) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TAB, glfwGetKey(win, GLFW_KEY_TAB) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_BACKSPACE, glfwGetKey(win, GLFW_KEY_BACKSPACE) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_UP, glfwGetKey(win, GLFW_KEY_UP) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_DOWN, glfwGetKey(win, GLFW_KEY_DOWN) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_START, glfwGetKey(win, GLFW_KEY_HOME) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_END, glfwGetKey(win, GLFW_KEY_END) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_SCROLL_START, glfwGetKey(win, GLFW_KEY_HOME) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_SCROLL_END, glfwGetKey(win, GLFW_KEY_END) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_SCROLL_DOWN, glfwGetKey(win, GLFW_KEY_PAGE_DOWN) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_SCROLL_UP, glfwGetKey(win, GLFW_KEY_PAGE_UP) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_SHIFT, glfwGetKey(win, GLFW_KEY_LEFT_SHIFT) == GLFW_PRESS||
glfwGetKey(win, GLFW_KEY_RIGHT_SHIFT) == GLFW_PRESS);
if (glfwGetKey(win, GLFW_KEY_LEFT_CONTROL) == GLFW_PRESS ||
glfwGetKey(win, GLFW_KEY_RIGHT_CONTROL) == GLFW_PRESS) {
nk_input_key(ctx, NK_KEY_COPY, glfwGetKey(win, GLFW_KEY_C) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_PASTE, glfwGetKey(win, GLFW_KEY_V) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_CUT, glfwGetKey(win, GLFW_KEY_X) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_UNDO, glfwGetKey(win, GLFW_KEY_Z) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_REDO, glfwGetKey(win, GLFW_KEY_R) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_WORD_LEFT, glfwGetKey(win, GLFW_KEY_LEFT) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_WORD_RIGHT, glfwGetKey(win, GLFW_KEY_RIGHT) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_LINE_START, glfwGetKey(win, GLFW_KEY_B) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_TEXT_LINE_END, glfwGetKey(win, GLFW_KEY_E) == GLFW_PRESS);
} else {
nk_input_key(ctx, NK_KEY_LEFT, glfwGetKey(win, GLFW_KEY_LEFT) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_RIGHT, glfwGetKey(win, GLFW_KEY_RIGHT) == GLFW_PRESS);
nk_input_key(ctx, NK_KEY_COPY, 0);
nk_input_key(ctx, NK_KEY_PASTE, 0);
nk_input_key(ctx, NK_KEY_CUT, 0);
nk_input_key(ctx, NK_KEY_SHIFT, 0);
}
glfwGetCursorPos(win, &x, &y);
nk_input_motion(ctx, (int)x, (int)y);
if (ctx->input.mouse.grabbed) {
glfwSetCursorPos(glfw.win, (double)ctx->input.mouse.prev.x, (double)ctx->input.mouse.prev.y);
ctx->input.mouse.pos.x = ctx->input.mouse.prev.x;
ctx->input.mouse.pos.y = ctx->input.mouse.prev.y;
}
nk_input_button(ctx, NK_BUTTON_LEFT, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_LEFT) == GLFW_PRESS);
nk_input_button(ctx, NK_BUTTON_MIDDLE, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_MIDDLE) == GLFW_PRESS);
nk_input_button(ctx, NK_BUTTON_RIGHT, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_RIGHT) == GLFW_PRESS);
nk_input_button(ctx, NK_BUTTON_DOUBLE, (int)glfw.double_click_pos.x, (int)glfw.double_click_pos.y, glfw.is_double_click_down);
nk_input_scroll(ctx, glfw.scroll);
nk_input_end(&glfw.ctx);
glfw.text_len = 0;
glfw.scroll = nk_vec2(0,0);
}
NK_API
void nk_glfw3_shutdown(void)
{
struct nk_glfw_device *dev = &glfw.ogl;
nk_font_atlas_clear(&glfw.atlas);
nk_free(&glfw.ctx);
glDeleteTextures(1, &dev->font_tex);
nk_buffer_free(&dev->cmds);
NK_MEMSET(&glfw, 0, sizeof(glfw));
}
#endif

1724
thirdparty/glfw/deps/stb_image_write.h vendored
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594
thirdparty/glfw/deps/tinycthread.c vendored
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@ -1,594 +0,0 @@
/* -*- mode: c; tab-width: 2; indent-tabs-mode: nil; -*-
Copyright (c) 2012 Marcus Geelnard
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source
distribution.
*/
/* 2013-01-06 Camilla Löwy <elmindreda@glfw.org>
*
* Added casts from time_t to DWORD to avoid warnings on VC++.
* Fixed time retrieval on POSIX systems.
*/
#include "tinycthread.h"
#include <stdlib.h>
/* Platform specific includes */
#if defined(_TTHREAD_POSIX_)
#include <signal.h>
#include <sched.h>
#include <unistd.h>
#include <sys/time.h>
#include <errno.h>
#elif defined(_TTHREAD_WIN32_)
#include <process.h>
#include <sys/timeb.h>
#endif
/* Standard, good-to-have defines */
#ifndef NULL
#define NULL (void*)0
#endif
#ifndef TRUE
#define TRUE 1
#endif
#ifndef FALSE
#define FALSE 0
#endif
int mtx_init(mtx_t *mtx, int type)
{
#if defined(_TTHREAD_WIN32_)
mtx->mAlreadyLocked = FALSE;
mtx->mRecursive = type & mtx_recursive;
InitializeCriticalSection(&mtx->mHandle);
return thrd_success;
#else
int ret;
pthread_mutexattr_t attr;
pthread_mutexattr_init(&attr);
if (type & mtx_recursive)
{
pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
}
ret = pthread_mutex_init(mtx, &attr);
pthread_mutexattr_destroy(&attr);
return ret == 0 ? thrd_success : thrd_error;
#endif
}
void mtx_destroy(mtx_t *mtx)
{
#if defined(_TTHREAD_WIN32_)
DeleteCriticalSection(&mtx->mHandle);
#else
pthread_mutex_destroy(mtx);
#endif
}
int mtx_lock(mtx_t *mtx)
{
#if defined(_TTHREAD_WIN32_)
EnterCriticalSection(&mtx->mHandle);
if (!mtx->mRecursive)
{
while(mtx->mAlreadyLocked) Sleep(1000); /* Simulate deadlock... */
mtx->mAlreadyLocked = TRUE;
}
return thrd_success;
#else
return pthread_mutex_lock(mtx) == 0 ? thrd_success : thrd_error;
#endif
}
int mtx_timedlock(mtx_t *mtx, const struct timespec *ts)
{
/* FIXME! */
(void)mtx;
(void)ts;
return thrd_error;
}
int mtx_trylock(mtx_t *mtx)
{
#if defined(_TTHREAD_WIN32_)
int ret = TryEnterCriticalSection(&mtx->mHandle) ? thrd_success : thrd_busy;
if ((!mtx->mRecursive) && (ret == thrd_success) && mtx->mAlreadyLocked)
{
LeaveCriticalSection(&mtx->mHandle);
ret = thrd_busy;
}
return ret;
#else
return (pthread_mutex_trylock(mtx) == 0) ? thrd_success : thrd_busy;
#endif
}
int mtx_unlock(mtx_t *mtx)
{
#if defined(_TTHREAD_WIN32_)
mtx->mAlreadyLocked = FALSE;
LeaveCriticalSection(&mtx->mHandle);
return thrd_success;
#else
return pthread_mutex_unlock(mtx) == 0 ? thrd_success : thrd_error;;
#endif
}
#if defined(_TTHREAD_WIN32_)
#define _CONDITION_EVENT_ONE 0
#define _CONDITION_EVENT_ALL 1
#endif
int cnd_init(cnd_t *cond)
{
#if defined(_TTHREAD_WIN32_)
cond->mWaitersCount = 0;
/* Init critical section */
InitializeCriticalSection(&cond->mWaitersCountLock);
/* Init events */
cond->mEvents[_CONDITION_EVENT_ONE] = CreateEvent(NULL, FALSE, FALSE, NULL);
if (cond->mEvents[_CONDITION_EVENT_ONE] == NULL)
{
cond->mEvents[_CONDITION_EVENT_ALL] = NULL;
return thrd_error;
}
cond->mEvents[_CONDITION_EVENT_ALL] = CreateEvent(NULL, TRUE, FALSE, NULL);
if (cond->mEvents[_CONDITION_EVENT_ALL] == NULL)
{
CloseHandle(cond->mEvents[_CONDITION_EVENT_ONE]);
cond->mEvents[_CONDITION_EVENT_ONE] = NULL;
return thrd_error;
}
return thrd_success;
#else
return pthread_cond_init(cond, NULL) == 0 ? thrd_success : thrd_error;
#endif
}
void cnd_destroy(cnd_t *cond)
{
#if defined(_TTHREAD_WIN32_)
if (cond->mEvents[_CONDITION_EVENT_ONE] != NULL)
{
CloseHandle(cond->mEvents[_CONDITION_EVENT_ONE]);
}
if (cond->mEvents[_CONDITION_EVENT_ALL] != NULL)
{
CloseHandle(cond->mEvents[_CONDITION_EVENT_ALL]);
}
DeleteCriticalSection(&cond->mWaitersCountLock);
#else
pthread_cond_destroy(cond);
#endif
}
int cnd_signal(cnd_t *cond)
{
#if defined(_TTHREAD_WIN32_)
int haveWaiters;
/* Are there any waiters? */
EnterCriticalSection(&cond->mWaitersCountLock);
haveWaiters = (cond->mWaitersCount > 0);
LeaveCriticalSection(&cond->mWaitersCountLock);
/* If we have any waiting threads, send them a signal */
if(haveWaiters)
{
if (SetEvent(cond->mEvents[_CONDITION_EVENT_ONE]) == 0)
{
return thrd_error;
}
}
return thrd_success;
#else
return pthread_cond_signal(cond) == 0 ? thrd_success : thrd_error;
#endif
}
int cnd_broadcast(cnd_t *cond)
{
#if defined(_TTHREAD_WIN32_)
int haveWaiters;
/* Are there any waiters? */
EnterCriticalSection(&cond->mWaitersCountLock);
haveWaiters = (cond->mWaitersCount > 0);
LeaveCriticalSection(&cond->mWaitersCountLock);
/* If we have any waiting threads, send them a signal */
if(haveWaiters)
{
if (SetEvent(cond->mEvents[_CONDITION_EVENT_ALL]) == 0)
{
return thrd_error;
}
}
return thrd_success;
#else
return pthread_cond_signal(cond) == 0 ? thrd_success : thrd_error;
#endif
}
#if defined(_TTHREAD_WIN32_)
static int _cnd_timedwait_win32(cnd_t *cond, mtx_t *mtx, DWORD timeout)
{
int result, lastWaiter;
/* Increment number of waiters */
EnterCriticalSection(&cond->mWaitersCountLock);
++ cond->mWaitersCount;
LeaveCriticalSection(&cond->mWaitersCountLock);
/* Release the mutex while waiting for the condition (will decrease
the number of waiters when done)... */
mtx_unlock(mtx);
/* Wait for either event to become signaled due to cnd_signal() or
cnd_broadcast() being called */
result = WaitForMultipleObjects(2, cond->mEvents, FALSE, timeout);
if (result == WAIT_TIMEOUT)
{
return thrd_timeout;
}
else if (result == (int)WAIT_FAILED)
{
return thrd_error;
}
/* Check if we are the last waiter */
EnterCriticalSection(&cond->mWaitersCountLock);
-- cond->mWaitersCount;
lastWaiter = (result == (WAIT_OBJECT_0 + _CONDITION_EVENT_ALL)) &&
(cond->mWaitersCount == 0);
LeaveCriticalSection(&cond->mWaitersCountLock);
/* If we are the last waiter to be notified to stop waiting, reset the event */
if (lastWaiter)
{
if (ResetEvent(cond->mEvents[_CONDITION_EVENT_ALL]) == 0)
{
return thrd_error;
}
}
/* Re-acquire the mutex */
mtx_lock(mtx);
return thrd_success;
}
#endif
int cnd_wait(cnd_t *cond, mtx_t *mtx)
{
#if defined(_TTHREAD_WIN32_)
return _cnd_timedwait_win32(cond, mtx, INFINITE);
#else
return pthread_cond_wait(cond, mtx) == 0 ? thrd_success : thrd_error;
#endif
}
int cnd_timedwait(cnd_t *cond, mtx_t *mtx, const struct timespec *ts)
{
#if defined(_TTHREAD_WIN32_)
struct timespec now;
if (clock_gettime(CLOCK_REALTIME, &now) == 0)
{
DWORD delta = (DWORD) ((ts->tv_sec - now.tv_sec) * 1000 +
(ts->tv_nsec - now.tv_nsec + 500000) / 1000000);
return _cnd_timedwait_win32(cond, mtx, delta);
}
else
return thrd_error;
#else
int ret;
ret = pthread_cond_timedwait(cond, mtx, ts);
if (ret == ETIMEDOUT)
{
return thrd_timeout;
}
return ret == 0 ? thrd_success : thrd_error;
#endif
}
/** Information to pass to the new thread (what to run). */
typedef struct {
thrd_start_t mFunction; /**< Pointer to the function to be executed. */
void * mArg; /**< Function argument for the thread function. */
} _thread_start_info;
/* Thread wrapper function. */
#if defined(_TTHREAD_WIN32_)
static unsigned WINAPI _thrd_wrapper_function(void * aArg)
#elif defined(_TTHREAD_POSIX_)
static void * _thrd_wrapper_function(void * aArg)
#endif
{
thrd_start_t fun;
void *arg;
int res;
#if defined(_TTHREAD_POSIX_)
void *pres;
#endif
/* Get thread startup information */
_thread_start_info *ti = (_thread_start_info *) aArg;
fun = ti->mFunction;
arg = ti->mArg;
/* The thread is responsible for freeing the startup information */
free((void *)ti);
/* Call the actual client thread function */
res = fun(arg);
#if defined(_TTHREAD_WIN32_)
return res;
#else
pres = malloc(sizeof(int));
if (pres != NULL)
{
*(int*)pres = res;
}
return pres;
#endif
}
int thrd_create(thrd_t *thr, thrd_start_t func, void *arg)
{
/* Fill out the thread startup information (passed to the thread wrapper,
which will eventually free it) */
_thread_start_info* ti = (_thread_start_info*)malloc(sizeof(_thread_start_info));
if (ti == NULL)
{
return thrd_nomem;
}
ti->mFunction = func;
ti->mArg = arg;
/* Create the thread */
#if defined(_TTHREAD_WIN32_)
*thr = (HANDLE)_beginthreadex(NULL, 0, _thrd_wrapper_function, (void *)ti, 0, NULL);
#elif defined(_TTHREAD_POSIX_)
if(pthread_create(thr, NULL, _thrd_wrapper_function, (void *)ti) != 0)
{
*thr = 0;
}
#endif
/* Did we fail to create the thread? */
if(!*thr)
{
free(ti);
return thrd_error;
}
return thrd_success;
}
thrd_t thrd_current(void)
{
#if defined(_TTHREAD_WIN32_)
return GetCurrentThread();
#else
return pthread_self();
#endif
}
int thrd_detach(thrd_t thr)
{
/* FIXME! */
(void)thr;
return thrd_error;
}
int thrd_equal(thrd_t thr0, thrd_t thr1)
{
#if defined(_TTHREAD_WIN32_)
return thr0 == thr1;
#else
return pthread_equal(thr0, thr1);
#endif
}
void thrd_exit(int res)
{
#if defined(_TTHREAD_WIN32_)
ExitThread(res);
#else
void *pres = malloc(sizeof(int));
if (pres != NULL)
{
*(int*)pres = res;
}
pthread_exit(pres);
#endif
}
int thrd_join(thrd_t thr, int *res)
{
#if defined(_TTHREAD_WIN32_)
if (WaitForSingleObject(thr, INFINITE) == WAIT_FAILED)
{
return thrd_error;
}
if (res != NULL)
{
DWORD dwRes;
GetExitCodeThread(thr, &dwRes);
*res = dwRes;
}
#elif defined(_TTHREAD_POSIX_)
void *pres;
int ires = 0;
if (pthread_join(thr, &pres) != 0)
{
return thrd_error;
}
if (pres != NULL)
{
ires = *(int*)pres;
free(pres);
}
if (res != NULL)
{
*res = ires;
}
#endif
return thrd_success;
}
int thrd_sleep(const struct timespec *time_point, struct timespec *remaining)
{
struct timespec now;
#if defined(_TTHREAD_WIN32_)
DWORD delta;
#else
long delta;
#endif
/* Get the current time */
if (clock_gettime(CLOCK_REALTIME, &now) != 0)
return -2; // FIXME: Some specific error code?
#if defined(_TTHREAD_WIN32_)
/* Delta in milliseconds */
delta = (DWORD) ((time_point->tv_sec - now.tv_sec) * 1000 +
(time_point->tv_nsec - now.tv_nsec + 500000) / 1000000);
if (delta > 0)
{
Sleep(delta);
}
#else
/* Delta in microseconds */
delta = (time_point->tv_sec - now.tv_sec) * 1000000L +
(time_point->tv_nsec - now.tv_nsec + 500L) / 1000L;
/* On some systems, the usleep argument must be < 1000000 */
while (delta > 999999L)
{
usleep(999999);
delta -= 999999L;
}
if (delta > 0L)
{
usleep((useconds_t)delta);
}
#endif
/* We don't support waking up prematurely (yet) */
if (remaining)
{
remaining->tv_sec = 0;
remaining->tv_nsec = 0;
}
return 0;
}
void thrd_yield(void)
{
#if defined(_TTHREAD_WIN32_)
Sleep(0);
#else
sched_yield();
#endif
}
int tss_create(tss_t *key, tss_dtor_t dtor)
{
#if defined(_TTHREAD_WIN32_)
/* FIXME: The destructor function is not supported yet... */
if (dtor != NULL)
{
return thrd_error;
}
*key = TlsAlloc();
if (*key == TLS_OUT_OF_INDEXES)
{
return thrd_error;
}
#else
if (pthread_key_create(key, dtor) != 0)
{
return thrd_error;
}
#endif
return thrd_success;
}
void tss_delete(tss_t key)
{
#if defined(_TTHREAD_WIN32_)
TlsFree(key);
#else
pthread_key_delete(key);
#endif
}
void *tss_get(tss_t key)
{
#if defined(_TTHREAD_WIN32_)
return TlsGetValue(key);
#else
return pthread_getspecific(key);
#endif
}
int tss_set(tss_t key, void *val)
{
#if defined(_TTHREAD_WIN32_)
if (TlsSetValue(key, val) == 0)
{
return thrd_error;
}
#else
if (pthread_setspecific(key, val) != 0)
{
return thrd_error;
}
#endif
return thrd_success;
}
#if defined(_TTHREAD_EMULATE_CLOCK_GETTIME_)
int _tthread_clock_gettime(clockid_t clk_id, struct timespec *ts)
{
#if defined(_TTHREAD_WIN32_)
struct _timeb tb;
_ftime(&tb);
ts->tv_sec = (time_t)tb.time;
ts->tv_nsec = 1000000L * (long)tb.millitm;
#else
struct timeval tv;
gettimeofday(&tv, NULL);
ts->tv_sec = (time_t)tv.tv_sec;
ts->tv_nsec = 1000L * (long)tv.tv_usec;
#endif
return 0;
}
#endif // _TTHREAD_EMULATE_CLOCK_GETTIME_

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thirdparty/glfw/deps/tinycthread.h vendored
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@ -1,443 +0,0 @@
/* -*- mode: c; tab-width: 2; indent-tabs-mode: nil; -*-
Copyright (c) 2012 Marcus Geelnard
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source
distribution.
*/
#ifndef _TINYCTHREAD_H_
#define _TINYCTHREAD_H_
/**
* @file
* @mainpage TinyCThread API Reference
*
* @section intro_sec Introduction
* TinyCThread is a minimal, portable implementation of basic threading
* classes for C.
*
* They closely mimic the functionality and naming of the C11 standard, and
* should be easily replaceable with the corresponding standard variants.
*
* @section port_sec Portability
* The Win32 variant uses the native Win32 API for implementing the thread
* classes, while for other systems, the POSIX threads API (pthread) is used.
*
* @section misc_sec Miscellaneous
* The following special keywords are available: #_Thread_local.
*
* For more detailed information, browse the different sections of this
* documentation. A good place to start is:
* tinycthread.h.
*/
/* Which platform are we on? */
#if !defined(_TTHREAD_PLATFORM_DEFINED_)
#if defined(_WIN32) || defined(__WIN32__) || defined(__WINDOWS__)
#define _TTHREAD_WIN32_
#else
#define _TTHREAD_POSIX_
#endif
#define _TTHREAD_PLATFORM_DEFINED_
#endif
/* Activate some POSIX functionality (e.g. clock_gettime and recursive mutexes) */
#if defined(_TTHREAD_POSIX_)
#undef _FEATURES_H
#if !defined(_GNU_SOURCE)
#define _GNU_SOURCE
#endif
#if !defined(_POSIX_C_SOURCE) || ((_POSIX_C_SOURCE - 0) < 199309L)
#undef _POSIX_C_SOURCE
#define _POSIX_C_SOURCE 199309L
#endif
#if !defined(_XOPEN_SOURCE) || ((_XOPEN_SOURCE - 0) < 500)
#undef _XOPEN_SOURCE
#define _XOPEN_SOURCE 500
#endif
#endif
/* Generic includes */
#include <time.h>
/* Platform specific includes */
#if defined(_TTHREAD_POSIX_)
#include <sys/time.h>
#include <pthread.h>
#elif defined(_TTHREAD_WIN32_)
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#define __UNDEF_LEAN_AND_MEAN
#endif
#include <windows.h>
#ifdef __UNDEF_LEAN_AND_MEAN
#undef WIN32_LEAN_AND_MEAN
#undef __UNDEF_LEAN_AND_MEAN
#endif
#endif
/* Workaround for missing TIME_UTC: If time.h doesn't provide TIME_UTC,
it's quite likely that libc does not support it either. Hence, fall back to
the only other supported time specifier: CLOCK_REALTIME (and if that fails,
we're probably emulating clock_gettime anyway, so anything goes). */
#ifndef TIME_UTC
#ifdef CLOCK_REALTIME
#define TIME_UTC CLOCK_REALTIME
#else
#define TIME_UTC 0
#endif
#endif
/* Workaround for missing clock_gettime (most Windows compilers, afaik) */
#if defined(_TTHREAD_WIN32_) || defined(__APPLE_CC__)
#define _TTHREAD_EMULATE_CLOCK_GETTIME_
/* Emulate struct timespec */
#if defined(_TTHREAD_WIN32_)
struct _ttherad_timespec {
time_t tv_sec;
long tv_nsec;
};
#define timespec _ttherad_timespec
#endif
/* Emulate clockid_t */
typedef int _tthread_clockid_t;
#define clockid_t _tthread_clockid_t
/* Emulate clock_gettime */
int _tthread_clock_gettime(clockid_t clk_id, struct timespec *ts);
#define clock_gettime _tthread_clock_gettime
#ifndef CLOCK_REALTIME
#define CLOCK_REALTIME 0
#endif
#endif
/** TinyCThread version (major number). */
#define TINYCTHREAD_VERSION_MAJOR 1
/** TinyCThread version (minor number). */
#define TINYCTHREAD_VERSION_MINOR 1
/** TinyCThread version (full version). */
#define TINYCTHREAD_VERSION (TINYCTHREAD_VERSION_MAJOR * 100 + TINYCTHREAD_VERSION_MINOR)
/**
* @def _Thread_local
* Thread local storage keyword.
* A variable that is declared with the @c _Thread_local keyword makes the
* value of the variable local to each thread (known as thread-local storage,
* or TLS). Example usage:
* @code
* // This variable is local to each thread.
* _Thread_local int variable;
* @endcode
* @note The @c _Thread_local keyword is a macro that maps to the corresponding
* compiler directive (e.g. @c __declspec(thread)).
* @note This directive is currently not supported on Mac OS X (it will give
* a compiler error), since compile-time TLS is not supported in the Mac OS X
* executable format. Also, some older versions of MinGW (before GCC 4.x) do
* not support this directive.
* @hideinitializer
*/
/* FIXME: Check for a PROPER value of __STDC_VERSION__ to know if we have C11 */
#if !(defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201102L)) && !defined(_Thread_local)
#if defined(__GNUC__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_CC) || defined(__IBMCPP__)
#define _Thread_local __thread
#else
#define _Thread_local __declspec(thread)
#endif
#endif
/* Macros */
#define TSS_DTOR_ITERATIONS 0
/* Function return values */
#define thrd_error 0 /**< The requested operation failed */
#define thrd_success 1 /**< The requested operation succeeded */
#define thrd_timeout 2 /**< The time specified in the call was reached without acquiring the requested resource */
#define thrd_busy 3 /**< The requested operation failed because a tesource requested by a test and return function is already in use */
#define thrd_nomem 4 /**< The requested operation failed because it was unable to allocate memory */
/* Mutex types */
#define mtx_plain 1
#define mtx_timed 2
#define mtx_try 4
#define mtx_recursive 8
/* Mutex */
#if defined(_TTHREAD_WIN32_)
typedef struct {
CRITICAL_SECTION mHandle; /* Critical section handle */
int mAlreadyLocked; /* TRUE if the mutex is already locked */
int mRecursive; /* TRUE if the mutex is recursive */
} mtx_t;
#else
typedef pthread_mutex_t mtx_t;
#endif
/** Create a mutex object.
* @param mtx A mutex object.
* @param type Bit-mask that must have one of the following six values:
* @li @c mtx_plain for a simple non-recursive mutex
* @li @c mtx_timed for a non-recursive mutex that supports timeout
* @li @c mtx_try for a non-recursive mutex that supports test and return
* @li @c mtx_plain | @c mtx_recursive (same as @c mtx_plain, but recursive)
* @li @c mtx_timed | @c mtx_recursive (same as @c mtx_timed, but recursive)
* @li @c mtx_try | @c mtx_recursive (same as @c mtx_try, but recursive)
* @return @ref thrd_success on success, or @ref thrd_error if the request could
* not be honored.
*/
int mtx_init(mtx_t *mtx, int type);
/** Release any resources used by the given mutex.
* @param mtx A mutex object.
*/
void mtx_destroy(mtx_t *mtx);
/** Lock the given mutex.
* Blocks until the given mutex can be locked. If the mutex is non-recursive, and
* the calling thread already has a lock on the mutex, this call will block
* forever.
* @param mtx A mutex object.
* @return @ref thrd_success on success, or @ref thrd_error if the request could
* not be honored.
*/
int mtx_lock(mtx_t *mtx);
/** NOT YET IMPLEMENTED.
*/
int mtx_timedlock(mtx_t *mtx, const struct timespec *ts);
/** Try to lock the given mutex.
* The specified mutex shall support either test and return or timeout. If the
* mutex is already locked, the function returns without blocking.
* @param mtx A mutex object.
* @return @ref thrd_success on success, or @ref thrd_busy if the resource
* requested is already in use, or @ref thrd_error if the request could not be
* honored.
*/
int mtx_trylock(mtx_t *mtx);
/** Unlock the given mutex.
* @param mtx A mutex object.
* @return @ref thrd_success on success, or @ref thrd_error if the request could
* not be honored.
*/
int mtx_unlock(mtx_t *mtx);
/* Condition variable */
#if defined(_TTHREAD_WIN32_)
typedef struct {
HANDLE mEvents[2]; /* Signal and broadcast event HANDLEs. */
unsigned int mWaitersCount; /* Count of the number of waiters. */
CRITICAL_SECTION mWaitersCountLock; /* Serialize access to mWaitersCount. */
} cnd_t;
#else
typedef pthread_cond_t cnd_t;
#endif
/** Create a condition variable object.
* @param cond A condition variable object.
* @return @ref thrd_success on success, or @ref thrd_error if the request could
* not be honored.
*/
int cnd_init(cnd_t *cond);
/** Release any resources used by the given condition variable.
* @param cond A condition variable object.
*/
void cnd_destroy(cnd_t *cond);
/** Signal a condition variable.
* Unblocks one of the threads that are blocked on the given condition variable
* at the time of the call. If no threads are blocked on the condition variable
* at the time of the call, the function does nothing and return success.
* @param cond A condition variable object.
* @return @ref thrd_success on success, or @ref thrd_error if the request could
* not be honored.
*/
int cnd_signal(cnd_t *cond);
/** Broadcast a condition variable.
* Unblocks all of the threads that are blocked on the given condition variable
* at the time of the call. If no threads are blocked on the condition variable
* at the time of the call, the function does nothing and return success.
* @param cond A condition variable object.
* @return @ref thrd_success on success, or @ref thrd_error if the request could
* not be honored.
*/
int cnd_broadcast(cnd_t *cond);
/** Wait for a condition variable to become signaled.
* The function atomically unlocks the given mutex and endeavors to block until
* the given condition variable is signaled by a call to cnd_signal or to
* cnd_broadcast. When the calling thread becomes unblocked it locks the mutex
* before it returns.
* @param cond A condition variable object.
* @param mtx A mutex object.
* @return @ref thrd_success on success, or @ref thrd_error if the request could
* not be honored.
*/
int cnd_wait(cnd_t *cond, mtx_t *mtx);
/** Wait for a condition variable to become signaled.
* The function atomically unlocks the given mutex and endeavors to block until
* the given condition variable is signaled by a call to cnd_signal or to
* cnd_broadcast, or until after the specified time. When the calling thread
* becomes unblocked it locks the mutex before it returns.
* @param cond A condition variable object.
* @param mtx A mutex object.
* @param xt A point in time at which the request will time out (absolute time).
* @return @ref thrd_success upon success, or @ref thrd_timeout if the time
* specified in the call was reached without acquiring the requested resource, or
* @ref thrd_error if the request could not be honored.
*/
int cnd_timedwait(cnd_t *cond, mtx_t *mtx, const struct timespec *ts);
/* Thread */
#if defined(_TTHREAD_WIN32_)
typedef HANDLE thrd_t;
#else
typedef pthread_t thrd_t;
#endif
/** Thread start function.
* Any thread that is started with the @ref thrd_create() function must be
* started through a function of this type.
* @param arg The thread argument (the @c arg argument of the corresponding
* @ref thrd_create() call).
* @return The thread return value, which can be obtained by another thread
* by using the @ref thrd_join() function.
*/
typedef int (*thrd_start_t)(void *arg);
/** Create a new thread.
* @param thr Identifier of the newly created thread.
* @param func A function pointer to the function that will be executed in
* the new thread.
* @param arg An argument to the thread function.
* @return @ref thrd_success on success, or @ref thrd_nomem if no memory could
* be allocated for the thread requested, or @ref thrd_error if the request
* could not be honored.
* @note A thread’s identifier may be reused for a different thread once the
* original thread has exited and either been detached or joined to another
* thread.
*/
int thrd_create(thrd_t *thr, thrd_start_t func, void *arg);
/** Identify the calling thread.
* @return The identifier of the calling thread.
*/
thrd_t thrd_current(void);
/** NOT YET IMPLEMENTED.
*/
int thrd_detach(thrd_t thr);
/** Compare two thread identifiers.
* The function determines if two thread identifiers refer to the same thread.
* @return Zero if the two thread identifiers refer to different threads.
* Otherwise a nonzero value is returned.
*/
int thrd_equal(thrd_t thr0, thrd_t thr1);
/** Terminate execution of the calling thread.
* @param res Result code of the calling thread.
*/
void thrd_exit(int res);
/** Wait for a thread to terminate.
* The function joins the given thread with the current thread by blocking
* until the other thread has terminated.
* @param thr The thread to join with.
* @param res If this pointer is not NULL, the function will store the result
* code of the given thread in the integer pointed to by @c res.
* @return @ref thrd_success on success, or @ref thrd_error if the request could
* not be honored.
*/
int thrd_join(thrd_t thr, int *res);
/** Put the calling thread to sleep.
* Suspend execution of the calling thread.
* @param time_point A point in time at which the thread will resume (absolute time).
* @param remaining If non-NULL, this parameter will hold the remaining time until
* time_point upon return. This will typically be zero, but if
* the thread was woken up by a signal that is not ignored before
* time_point was reached @c remaining will hold a positive
* time.
* @return 0 (zero) on successful sleep, or -1 if an interrupt occurred.
*/
int thrd_sleep(const struct timespec *time_point, struct timespec *remaining);
/** Yield execution to another thread.
* Permit other threads to run, even if the current thread would ordinarily
* continue to run.
*/
void thrd_yield(void);
/* Thread local storage */
#if defined(_TTHREAD_WIN32_)
typedef DWORD tss_t;
#else
typedef pthread_key_t tss_t;
#endif
/** Destructor function for a thread-specific storage.
* @param val The value of the destructed thread-specific storage.
*/
typedef void (*tss_dtor_t)(void *val);
/** Create a thread-specific storage.
* @param key The unique key identifier that will be set if the function is
* successful.
* @param dtor Destructor function. This can be NULL.
* @return @ref thrd_success on success, or @ref thrd_error if the request could
* not be honored.
* @note The destructor function is not supported under Windows. If @c dtor is
* not NULL when calling this function under Windows, the function will fail
* and return @ref thrd_error.
*/
int tss_create(tss_t *key, tss_dtor_t dtor);
/** Delete a thread-specific storage.
* The function releases any resources used by the given thread-specific
* storage.
* @param key The key that shall be deleted.
*/
void tss_delete(tss_t key);
/** Get the value for a thread-specific storage.
* @param key The thread-specific storage identifier.
* @return The value for the current thread held in the given thread-specific
* storage.
*/
void *tss_get(tss_t key);
/** Set the value for a thread-specific storage.
* @param key The thread-specific storage identifier.
* @param val The value of the thread-specific storage to set for the current
* thread.
* @return @ref thrd_success on success, or @ref thrd_error if the request could
* not be honored.
*/
int tss_set(tss_t key, void *val);
#endif /* _TINYTHREAD_H_ */

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<?xml version="1.0" encoding="UTF-8"?>
<protocol name="fractional_scale_v1">
<copyright>
Copyright © 2022 Kenny Levinsen
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice (including the next
paragraph) shall be included in all copies or substantial portions of the
Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
</copyright>
<description summary="Protocol for requesting fractional surface scales">
This protocol allows a compositor to suggest for surfaces to render at
fractional scales.
A client can submit scaled content by utilizing wp_viewport. This is done by
creating a wp_viewport object for the surface and setting the destination
rectangle to the surface size before the scale factor is applied.
The buffer size is calculated by multiplying the surface size by the
intended scale.
The wl_surface buffer scale should remain set to 1.
If a surface has a surface-local size of 100 px by 50 px and wishes to
submit buffers with a scale of 1.5, then a buffer of 150px by 75 px should
be used and the wp_viewport destination rectangle should be 100 px by 50 px.
For toplevel surfaces, the size is rounded halfway away from zero. The
rounding algorithm for subsurface position and size is not defined.
</description>
<interface name="wp_fractional_scale_manager_v1" version="1">
<description summary="fractional surface scale information">
A global interface for requesting surfaces to use fractional scales.
</description>
<request name="destroy" type="destructor">
<description summary="unbind the fractional surface scale interface">
Informs the server that the client will not be using this protocol
object anymore. This does not affect any other objects,
wp_fractional_scale_v1 objects included.
</description>
</request>
<enum name="error">
<entry name="fractional_scale_exists" value="0"
summary="the surface already has a fractional_scale object associated"/>
</enum>
<request name="get_fractional_scale">
<description summary="extend surface interface for scale information">
Create an add-on object for the the wl_surface to let the compositor
request fractional scales. If the given wl_surface already has a
wp_fractional_scale_v1 object associated, the fractional_scale_exists
protocol error is raised.
</description>
<arg name="id" type="new_id" interface="wp_fractional_scale_v1"
summary="the new surface scale info interface id"/>
<arg name="surface" type="object" interface="wl_surface"
summary="the surface"/>
</request>
</interface>
<interface name="wp_fractional_scale_v1" version="1">
<description summary="fractional scale interface to a wl_surface">
An additional interface to a wl_surface object which allows the compositor
to inform the client of the preferred scale.
</description>
<request name="destroy" type="destructor">
<description summary="remove surface scale information for surface">
Destroy the fractional scale object. When this object is destroyed,
preferred_scale events will no longer be sent.
</description>
</request>
<event name="preferred_scale">
<description summary="notify of new preferred scale">
Notification of a new preferred scale for this surface that the
compositor suggests that the client should use.
The sent scale is the numerator of a fraction with a denominator of 120.
</description>
<arg name="scale" type="uint" summary="the new preferred scale"/>
</event>
</interface>
</protocol>

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<?xml version="1.0" encoding="UTF-8"?>
<protocol name="idle_inhibit_unstable_v1">
<copyright>
Copyright © 2015 Samsung Electronics Co., Ltd
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice (including the next
paragraph) shall be included in all copies or substantial portions of the
Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
</copyright>
<interface name="zwp_idle_inhibit_manager_v1" version="1">
<description summary="control behavior when display idles">
This interface permits inhibiting the idle behavior such as screen
blanking, locking, and screensaving. The client binds the idle manager
globally, then creates idle-inhibitor objects for each surface.
Warning! The protocol described in this file is experimental and
backward incompatible changes may be made. Backward compatible changes
may be added together with the corresponding interface version bump.
Backward incompatible changes are done by bumping the version number in
the protocol and interface names and resetting the interface version.
Once the protocol is to be declared stable, the 'z' prefix and the
version number in the protocol and interface names are removed and the
interface version number is reset.
</description>
<request name="destroy" type="destructor">
<description summary="destroy the idle inhibitor object">
Destroy the inhibit manager.
</description>
</request>
<request name="create_inhibitor">
<description summary="create a new inhibitor object">
Create a new inhibitor object associated with the given surface.
</description>
<arg name="id" type="new_id" interface="zwp_idle_inhibitor_v1"/>
<arg name="surface" type="object" interface="wl_surface"
summary="the surface that inhibits the idle behavior"/>
</request>
</interface>
<interface name="zwp_idle_inhibitor_v1" version="1">
<description summary="context object for inhibiting idle behavior">
An idle inhibitor prevents the output that the associated surface is
visible on from being set to a state where it is not visually usable due
to lack of user interaction (e.g. blanked, dimmed, locked, set to power
save, etc.) Any screensaver processes are also blocked from displaying.
If the surface is destroyed, unmapped, becomes occluded, loses
visibility, or otherwise becomes not visually relevant for the user, the
idle inhibitor will not be honored by the compositor; if the surface
subsequently regains visibility the inhibitor takes effect once again.
Likewise, the inhibitor isn't honored if the system was already idled at
the time the inhibitor was established, although if the system later
de-idles and re-idles the inhibitor will take effect.
</description>
<request name="destroy" type="destructor">
<description summary="destroy the idle inhibitor object">
Remove the inhibitor effect from the associated wl_surface.
</description>
</request>
</interface>
</protocol>

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<?xml version="1.0" encoding="UTF-8"?>
<protocol name="pointer_constraints_unstable_v1">
<copyright>
Copyright © 2014 Jonas Ådahl
Copyright © 2015 Red Hat Inc.
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice (including the next
paragraph) shall be included in all copies or substantial portions of the
Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
</copyright>
<description summary="protocol for constraining pointer motions">
This protocol specifies a set of interfaces used for adding constraints to
the motion of a pointer. Possible constraints include confining pointer
motions to a given region, or locking it to its current position.
In order to constrain the pointer, a client must first bind the global
interface "wp_pointer_constraints" which, if a compositor supports pointer
constraints, is exposed by the registry. Using the bound global object, the
client uses the request that corresponds to the type of constraint it wants
to make. See wp_pointer_constraints for more details.
Warning! The protocol described in this file is experimental and backward
incompatible changes may be made. Backward compatible changes may be added
together with the corresponding interface version bump. Backward
incompatible changes are done by bumping the version number in the protocol
and interface names and resetting the interface version. Once the protocol
is to be declared stable, the 'z' prefix and the version number in the
protocol and interface names are removed and the interface version number is
reset.
</description>
<interface name="zwp_pointer_constraints_v1" version="1">
<description summary="constrain the movement of a pointer">
The global interface exposing pointer constraining functionality. It
exposes two requests: lock_pointer for locking the pointer to its
position, and confine_pointer for locking the pointer to a region.
The lock_pointer and confine_pointer requests create the objects
wp_locked_pointer and wp_confined_pointer respectively, and the client can
use these objects to interact with the lock.
For any surface, only one lock or confinement may be active across all
wl_pointer objects of the same seat. If a lock or confinement is requested
when another lock or confinement is active or requested on the same surface
and with any of the wl_pointer objects of the same seat, an
'already_constrained' error will be raised.
</description>
<enum name="error">
<description summary="wp_pointer_constraints error values">
These errors can be emitted in response to wp_pointer_constraints
requests.
</description>
<entry name="already_constrained" value="1"
summary="pointer constraint already requested on that surface"/>
</enum>
<enum name="lifetime">
<description summary="constraint lifetime">
These values represent different lifetime semantics. They are passed
as arguments to the factory requests to specify how the constraint
lifetimes should be managed.
</description>
<entry name="oneshot" value="1">
<description summary="the pointer constraint is defunct once deactivated">
A oneshot pointer constraint will never reactivate once it has been
deactivated. See the corresponding deactivation event
(wp_locked_pointer.unlocked and wp_confined_pointer.unconfined) for
details.
</description>
</entry>
<entry name="persistent" value="2">
<description summary="the pointer constraint may reactivate">
A persistent pointer constraint may again reactivate once it has
been deactivated. See the corresponding deactivation event
(wp_locked_pointer.unlocked and wp_confined_pointer.unconfined) for
details.
</description>
</entry>
</enum>
<request name="destroy" type="destructor">
<description summary="destroy the pointer constraints manager object">
Used by the client to notify the server that it will no longer use this
pointer constraints object.
</description>
</request>
<request name="lock_pointer">
<description summary="lock pointer to a position">
The lock_pointer request lets the client request to disable movements of
the virtual pointer (i.e. the cursor), effectively locking the pointer
to a position. This request may not take effect immediately; in the
future, when the compositor deems implementation-specific constraints
are satisfied, the pointer lock will be activated and the compositor
sends a locked event.
The protocol provides no guarantee that the constraints are ever
satisfied, and does not require the compositor to send an error if the
constraints cannot ever be satisfied. It is thus possible to request a
lock that will never activate.
There may not be another pointer constraint of any kind requested or
active on the surface for any of the wl_pointer objects of the seat of
the passed pointer when requesting a lock. If there is, an error will be
raised. See general pointer lock documentation for more details.
The intersection of the region passed with this request and the input
region of the surface is used to determine where the pointer must be
in order for the lock to activate. It is up to the compositor whether to
warp the pointer or require some kind of user interaction for the lock
to activate. If the region is null the surface input region is used.
A surface may receive pointer focus without the lock being activated.
The request creates a new object wp_locked_pointer which is used to
interact with the lock as well as receive updates about its state. See
the the description of wp_locked_pointer for further information.
Note that while a pointer is locked, the wl_pointer objects of the
corresponding seat will not emit any wl_pointer.motion events, but
relative motion events will still be emitted via wp_relative_pointer
objects of the same seat. wl_pointer.axis and wl_pointer.button events
are unaffected.
</description>
<arg name="id" type="new_id" interface="zwp_locked_pointer_v1"/>
<arg name="surface" type="object" interface="wl_surface"
summary="surface to lock pointer to"/>
<arg name="pointer" type="object" interface="wl_pointer"
summary="the pointer that should be locked"/>
<arg name="region" type="object" interface="wl_region" allow-null="true"
summary="region of surface"/>
<arg name="lifetime" type="uint" enum="lifetime" summary="lock lifetime"/>
</request>
<request name="confine_pointer">
<description summary="confine pointer to a region">
The confine_pointer request lets the client request to confine the
pointer cursor to a given region. This request may not take effect
immediately; in the future, when the compositor deems implementation-
specific constraints are satisfied, the pointer confinement will be
activated and the compositor sends a confined event.
The intersection of the region passed with this request and the input
region of the surface is used to determine where the pointer must be
in order for the confinement to activate. It is up to the compositor
whether to warp the pointer or require some kind of user interaction for
the confinement to activate. If the region is null the surface input
region is used.
The request will create a new object wp_confined_pointer which is used
to interact with the confinement as well as receive updates about its
state. See the the description of wp_confined_pointer for further
information.
</description>
<arg name="id" type="new_id" interface="zwp_confined_pointer_v1"/>
<arg name="surface" type="object" interface="wl_surface"
summary="surface to lock pointer to"/>
<arg name="pointer" type="object" interface="wl_pointer"
summary="the pointer that should be confined"/>
<arg name="region" type="object" interface="wl_region" allow-null="true"
summary="region of surface"/>
<arg name="lifetime" type="uint" enum="lifetime" summary="confinement lifetime"/>
</request>
</interface>
<interface name="zwp_locked_pointer_v1" version="1">
<description summary="receive relative pointer motion events">
The wp_locked_pointer interface represents a locked pointer state.
While the lock of this object is active, the wl_pointer objects of the
associated seat will not emit any wl_pointer.motion events.
This object will send the event 'locked' when the lock is activated.
Whenever the lock is activated, it is guaranteed that the locked surface
will already have received pointer focus and that the pointer will be
within the region passed to the request creating this object.
To unlock the pointer, send the destroy request. This will also destroy
the wp_locked_pointer object.
If the compositor decides to unlock the pointer the unlocked event is
sent. See wp_locked_pointer.unlock for details.
When unlocking, the compositor may warp the cursor position to the set
cursor position hint. If it does, it will not result in any relative
motion events emitted via wp_relative_pointer.
If the surface the lock was requested on is destroyed and the lock is not
yet activated, the wp_locked_pointer object is now defunct and must be
destroyed.
</description>
<request name="destroy" type="destructor">
<description summary="destroy the locked pointer object">
Destroy the locked pointer object. If applicable, the compositor will
unlock the pointer.
</description>
</request>
<request name="set_cursor_position_hint">
<description summary="set the pointer cursor position hint">
Set the cursor position hint relative to the top left corner of the
surface.
If the client is drawing its own cursor, it should update the position
hint to the position of its own cursor. A compositor may use this
information to warp the pointer upon unlock in order to avoid pointer
jumps.
The cursor position hint is double buffered. The new hint will only take
effect when the associated surface gets it pending state applied. See
wl_surface.commit for details.
</description>
<arg name="surface_x" type="fixed"
summary="surface-local x coordinate"/>
<arg name="surface_y" type="fixed"
summary="surface-local y coordinate"/>
</request>
<request name="set_region">
<description summary="set a new lock region">
Set a new region used to lock the pointer.
The new lock region is double-buffered. The new lock region will
only take effect when the associated surface gets its pending state
applied. See wl_surface.commit for details.
For details about the lock region, see wp_locked_pointer.
</description>
<arg name="region" type="object" interface="wl_region" allow-null="true"
summary="region of surface"/>
</request>
<event name="locked">
<description summary="lock activation event">
Notification that the pointer lock of the seat's pointer is activated.
</description>
</event>
<event name="unlocked">
<description summary="lock deactivation event">
Notification that the pointer lock of the seat's pointer is no longer
active. If this is a oneshot pointer lock (see
wp_pointer_constraints.lifetime) this object is now defunct and should
be destroyed. If this is a persistent pointer lock (see
wp_pointer_constraints.lifetime) this pointer lock may again
reactivate in the future.
</description>
</event>
</interface>
<interface name="zwp_confined_pointer_v1" version="1">
<description summary="confined pointer object">
The wp_confined_pointer interface represents a confined pointer state.
This object will send the event 'confined' when the confinement is
activated. Whenever the confinement is activated, it is guaranteed that
the surface the pointer is confined to will already have received pointer
focus and that the pointer will be within the region passed to the request
creating this object. It is up to the compositor to decide whether this
requires some user interaction and if the pointer will warp to within the
passed region if outside.
To unconfine the pointer, send the destroy request. This will also destroy
the wp_confined_pointer object.
If the compositor decides to unconfine the pointer the unconfined event is
sent. The wp_confined_pointer object is at this point defunct and should
be destroyed.
</description>
<request name="destroy" type="destructor">
<description summary="destroy the confined pointer object">
Destroy the confined pointer object. If applicable, the compositor will
unconfine the pointer.
</description>
</request>
<request name="set_region">
<description summary="set a new confine region">
Set a new region used to confine the pointer.
The new confine region is double-buffered. The new confine region will
only take effect when the associated surface gets its pending state
applied. See wl_surface.commit for details.
If the confinement is active when the new confinement region is applied
and the pointer ends up outside of newly applied region, the pointer may
warped to a position within the new confinement region. If warped, a
wl_pointer.motion event will be emitted, but no
wp_relative_pointer.relative_motion event.
The compositor may also, instead of using the new region, unconfine the
pointer.
For details about the confine region, see wp_confined_pointer.
</description>
<arg name="region" type="object" interface="wl_region" allow-null="true"
summary="region of surface"/>
</request>
<event name="confined">
<description summary="pointer confined">
Notification that the pointer confinement of the seat's pointer is
activated.
</description>
</event>
<event name="unconfined">
<description summary="pointer unconfined">
Notification that the pointer confinement of the seat's pointer is no
longer active. If this is a oneshot pointer confinement (see
wp_pointer_constraints.lifetime) this object is now defunct and should
be destroyed. If this is a persistent pointer confinement (see
wp_pointer_constraints.lifetime) this pointer confinement may again
reactivate in the future.
</description>
</event>
</interface>
</protocol>

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<?xml version="1.0" encoding="UTF-8"?>
<protocol name="relative_pointer_unstable_v1">
<copyright>
Copyright © 2014 Jonas Ådahl
Copyright © 2015 Red Hat Inc.
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice (including the next
paragraph) shall be included in all copies or substantial portions of the
Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
</copyright>
<description summary="protocol for relative pointer motion events">
This protocol specifies a set of interfaces used for making clients able to
receive relative pointer events not obstructed by barriers (such as the
monitor edge or other pointer barriers).
To start receiving relative pointer events, a client must first bind the
global interface "wp_relative_pointer_manager" which, if a compositor
supports relative pointer motion events, is exposed by the registry. After
having created the relative pointer manager proxy object, the client uses
it to create the actual relative pointer object using the
"get_relative_pointer" request given a wl_pointer. The relative pointer
motion events will then, when applicable, be transmitted via the proxy of
the newly created relative pointer object. See the documentation of the
relative pointer interface for more details.
Warning! The protocol described in this file is experimental and backward
incompatible changes may be made. Backward compatible changes may be added
together with the corresponding interface version bump. Backward
incompatible changes are done by bumping the version number in the protocol
and interface names and resetting the interface version. Once the protocol
is to be declared stable, the 'z' prefix and the version number in the
protocol and interface names are removed and the interface version number is
reset.
</description>
<interface name="zwp_relative_pointer_manager_v1" version="1">
<description summary="get relative pointer objects">
A global interface used for getting the relative pointer object for a
given pointer.
</description>
<request name="destroy" type="destructor">
<description summary="destroy the relative pointer manager object">
Used by the client to notify the server that it will no longer use this
relative pointer manager object.
</description>
</request>
<request name="get_relative_pointer">
<description summary="get a relative pointer object">
Create a relative pointer interface given a wl_pointer object. See the
wp_relative_pointer interface for more details.
</description>
<arg name="id" type="new_id" interface="zwp_relative_pointer_v1"/>
<arg name="pointer" type="object" interface="wl_pointer"/>
</request>
</interface>
<interface name="zwp_relative_pointer_v1" version="1">
<description summary="relative pointer object">
A wp_relative_pointer object is an extension to the wl_pointer interface
used for emitting relative pointer events. It shares the same focus as
wl_pointer objects of the same seat and will only emit events when it has
focus.
</description>
<request name="destroy" type="destructor">
<description summary="release the relative pointer object"/>
</request>
<event name="relative_motion">
<description summary="relative pointer motion">
Relative x/y pointer motion from the pointer of the seat associated with
this object.
A relative motion is in the same dimension as regular wl_pointer motion
events, except they do not represent an absolute position. For example,
moving a pointer from (x, y) to (x', y') would have the equivalent
relative motion (x' - x, y' - y). If a pointer motion caused the
absolute pointer position to be clipped by for example the edge of the
monitor, the relative motion is unaffected by the clipping and will
represent the unclipped motion.
This event also contains non-accelerated motion deltas. The
non-accelerated delta is, when applicable, the regular pointer motion
delta as it was before having applied motion acceleration and other
transformations such as normalization.
Note that the non-accelerated delta does not represent 'raw' events as
they were read from some device. Pointer motion acceleration is device-
and configuration-specific and non-accelerated deltas and accelerated
deltas may have the same value on some devices.
Relative motions are not coupled to wl_pointer.motion events, and can be
sent in combination with such events, but also independently. There may
also be scenarios where wl_pointer.motion is sent, but there is no
relative motion. The order of an absolute and relative motion event
originating from the same physical motion is not guaranteed.
If the client needs button events or focus state, it can receive them
from a wl_pointer object of the same seat that the wp_relative_pointer
object is associated with.
</description>
<arg name="utime_hi" type="uint"
summary="high 32 bits of a 64 bit timestamp with microsecond granularity"/>
<arg name="utime_lo" type="uint"
summary="low 32 bits of a 64 bit timestamp with microsecond granularity"/>
<arg name="dx" type="fixed"
summary="the x component of the motion vector"/>
<arg name="dy" type="fixed"
summary="the y component of the motion vector"/>
<arg name="dx_unaccel" type="fixed"
summary="the x component of the unaccelerated motion vector"/>
<arg name="dy_unaccel" type="fixed"
summary="the y component of the unaccelerated motion vector"/>
</event>
</interface>
</protocol>

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<?xml version="1.0" encoding="UTF-8"?>
<protocol name="viewporter">
<copyright>
Copyright © 2013-2016 Collabora, Ltd.
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice (including the next
paragraph) shall be included in all copies or substantial portions of the
Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
</copyright>
<interface name="wp_viewporter" version="1">
<description summary="surface cropping and scaling">
The global interface exposing surface cropping and scaling
capabilities is used to instantiate an interface extension for a
wl_surface object. This extended interface will then allow
cropping and scaling the surface contents, effectively
disconnecting the direct relationship between the buffer and the
surface size.
</description>
<request name="destroy" type="destructor">
<description summary="unbind from the cropping and scaling interface">
Informs the server that the client will not be using this
protocol object anymore. This does not affect any other objects,
wp_viewport objects included.
</description>
</request>
<enum name="error">
<entry name="viewport_exists" value="0"
summary="the surface already has a viewport object associated"/>
</enum>
<request name="get_viewport">
<description summary="extend surface interface for crop and scale">
Instantiate an interface extension for the given wl_surface to
crop and scale its content. If the given wl_surface already has
a wp_viewport object associated, the viewport_exists
protocol error is raised.
</description>
<arg name="id" type="new_id" interface="wp_viewport"
summary="the new viewport interface id"/>
<arg name="surface" type="object" interface="wl_surface"
summary="the surface"/>
</request>
</interface>
<interface name="wp_viewport" version="1">
<description summary="crop and scale interface to a wl_surface">
An additional interface to a wl_surface object, which allows the
client to specify the cropping and scaling of the surface
contents.
This interface works with two concepts: the source rectangle (src_x,
src_y, src_width, src_height), and the destination size (dst_width,
dst_height). The contents of the source rectangle are scaled to the
destination size, and content outside the source rectangle is ignored.
This state is double-buffered, and is applied on the next
wl_surface.commit.
The two parts of crop and scale state are independent: the source
rectangle, and the destination size. Initially both are unset, that
is, no scaling is applied. The whole of the current wl_buffer is
used as the source, and the surface size is as defined in
wl_surface.attach.
If the destination size is set, it causes the surface size to become
dst_width, dst_height. The source (rectangle) is scaled to exactly
this size. This overrides whatever the attached wl_buffer size is,
unless the wl_buffer is NULL. If the wl_buffer is NULL, the surface
has no content and therefore no size. Otherwise, the size is always
at least 1x1 in surface local coordinates.
If the source rectangle is set, it defines what area of the wl_buffer is
taken as the source. If the source rectangle is set and the destination
size is not set, then src_width and src_height must be integers, and the
surface size becomes the source rectangle size. This results in cropping
without scaling. If src_width or src_height are not integers and
destination size is not set, the bad_size protocol error is raised when
the surface state is applied.
The coordinate transformations from buffer pixel coordinates up to
the surface-local coordinates happen in the following order:
1. buffer_transform (wl_surface.set_buffer_transform)
2. buffer_scale (wl_surface.set_buffer_scale)
3. crop and scale (wp_viewport.set*)
This means, that the source rectangle coordinates of crop and scale
are given in the coordinates after the buffer transform and scale,
i.e. in the coordinates that would be the surface-local coordinates
if the crop and scale was not applied.
If src_x or src_y are negative, the bad_value protocol error is raised.
Otherwise, if the source rectangle is partially or completely outside of
the non-NULL wl_buffer, then the out_of_buffer protocol error is raised
when the surface state is applied. A NULL wl_buffer does not raise the
out_of_buffer error.
If the wl_surface associated with the wp_viewport is destroyed,
all wp_viewport requests except 'destroy' raise the protocol error
no_surface.
If the wp_viewport object is destroyed, the crop and scale
state is removed from the wl_surface. The change will be applied
on the next wl_surface.commit.
</description>
<request name="destroy" type="destructor">
<description summary="remove scaling and cropping from the surface">
The associated wl_surface's crop and scale state is removed.
The change is applied on the next wl_surface.commit.
</description>
</request>
<enum name="error">
<entry name="bad_value" value="0"
summary="negative or zero values in width or height"/>
<entry name="bad_size" value="1"
summary="destination size is not integer"/>
<entry name="out_of_buffer" value="2"
summary="source rectangle extends outside of the content area"/>
<entry name="no_surface" value="3"
summary="the wl_surface was destroyed"/>
</enum>
<request name="set_source">
<description summary="set the source rectangle for cropping">
Set the source rectangle of the associated wl_surface. See
wp_viewport for the description, and relation to the wl_buffer
size.
If all of x, y, width and height are -1.0, the source rectangle is
unset instead. Any other set of values where width or height are zero
or negative, or x or y are negative, raise the bad_value protocol
error.
The crop and scale state is double-buffered state, and will be
applied on the next wl_surface.commit.
</description>
<arg name="x" type="fixed" summary="source rectangle x"/>
<arg name="y" type="fixed" summary="source rectangle y"/>
<arg name="width" type="fixed" summary="source rectangle width"/>
<arg name="height" type="fixed" summary="source rectangle height"/>
</request>
<request name="set_destination">
<description summary="set the surface size for scaling">
Set the destination size of the associated wl_surface. See
wp_viewport for the description, and relation to the wl_buffer
size.
If width is -1 and height is -1, the destination size is unset
instead. Any other pair of values for width and height that
contains zero or negative values raises the bad_value protocol
error.
The crop and scale state is double-buffered state, and will be
applied on the next wl_surface.commit.
</description>
<arg name="width" type="int" summary="surface width"/>
<arg name="height" type="int" summary="surface height"/>
</request>
</interface>
</protocol>

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<?xml version="1.0" encoding="UTF-8"?>
<protocol name="xdg_activation_v1">
<copyright>
Copyright © 2020 Aleix Pol Gonzalez &lt;aleixpol@kde.org&gt;
Copyright © 2020 Carlos Garnacho &lt;carlosg@gnome.org&gt;
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice (including the next
paragraph) shall be included in all copies or substantial portions of the
Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
</copyright>
<description summary="Protocol for requesting activation of surfaces">
The way for a client to pass focus to another toplevel is as follows.
The client that intends to activate another toplevel uses the
xdg_activation_v1.get_activation_token request to get an activation token.
This token is then forwarded to the client, which is supposed to activate
one of its surfaces, through a separate band of communication.
One established way of doing this is through the XDG_ACTIVATION_TOKEN
environment variable of a newly launched child process. The child process
should unset the environment variable again right after reading it out in
order to avoid propagating it to other child processes.
Another established way exists for Applications implementing the D-Bus
interface org.freedesktop.Application, which should get their token under
activation-token on their platform_data.
In general activation tokens may be transferred across clients through
means not described in this protocol.
The client to be activated will then pass the token
it received to the xdg_activation_v1.activate request. The compositor can
then use this token to decide how to react to the activation request.
The token the activating client gets may be ineffective either already at
the time it receives it, for example if it was not focused, for focus
stealing prevention. The activating client will have no way to discover
the validity of the token, and may still forward it to the to be activated
client.
The created activation token may optionally get information attached to it
that can be used by the compositor to identify the application that we
intend to activate. This can for example be used to display a visual hint
about what application is being started.
Warning! The protocol described in this file is currently in the testing
phase. Backward compatible changes may be added together with the
corresponding interface version bump. Backward incompatible changes can
only be done by creating a new major version of the extension.
</description>
<interface name="xdg_activation_v1" version="1">
<description summary="interface for activating surfaces">
A global interface used for informing the compositor about applications
being activated or started, or for applications to request to be
activated.
</description>
<request name="destroy" type="destructor">
<description summary="destroy the xdg_activation object">
Notify the compositor that the xdg_activation object will no longer be
used.
The child objects created via this interface are unaffected and should
be destroyed separately.
</description>
</request>
<request name="get_activation_token">
<description summary="requests a token">
Creates an xdg_activation_token_v1 object that will provide
the initiating client with a unique token for this activation. This
token should be offered to the clients to be activated.
</description>
<arg name="id" type="new_id" interface="xdg_activation_token_v1"/>
</request>
<request name="activate">
<description summary="notify new interaction being available">
Requests surface activation. It's up to the compositor to display
this information as desired, for example by placing the surface above
the rest.
The compositor may know who requested this by checking the activation
token and might decide not to follow through with the activation if it's
considered unwanted.
Compositors can ignore unknown activation tokens when an invalid
token is passed.
</description>
<arg name="token" type="string" summary="the activation token of the initiating client"/>
<arg name="surface" type="object" interface="wl_surface"
summary="the wl_surface to activate"/>
</request>
</interface>
<interface name="xdg_activation_token_v1" version="1">
<description summary="an exported activation handle">
An object for setting up a token and receiving a token handle that can
be passed as an activation token to another client.
The object is created using the xdg_activation_v1.get_activation_token
request. This object should then be populated with the app_id, surface
and serial information and committed. The compositor shall then issue a
done event with the token. In case the request's parameters are invalid,
the compositor will provide an invalid token.
</description>
<enum name="error">
<entry name="already_used" value="0"
summary="The token has already been used previously"/>
</enum>
<request name="set_serial">
<description summary="specifies the seat and serial of the activating event">
Provides information about the seat and serial event that requested the
token.
The serial can come from an input or focus event. For instance, if a
click triggers the launch of a third-party client, the launcher client
should send a set_serial request with the serial and seat from the
wl_pointer.button event.
Some compositors might refuse to activate toplevels when the token
doesn't have a valid and recent enough event serial.
Must be sent before commit. This information is optional.
</description>
<arg name="serial" type="uint"
summary="the serial of the event that triggered the activation"/>
<arg name="seat" type="object" interface="wl_seat"
summary="the wl_seat of the event"/>
</request>
<request name="set_app_id">
<description summary="specifies the application being activated">
The requesting client can specify an app_id to associate the token
being created with it.
Must be sent before commit. This information is optional.
</description>
<arg name="app_id" type="string"
summary="the application id of the client being activated."/>
</request>
<request name="set_surface">
<description summary="specifies the surface requesting activation">
This request sets the surface requesting the activation. Note, this is
different from the surface that will be activated.
Some compositors might refuse to activate toplevels when the token
doesn't have a requesting surface.
Must be sent before commit. This information is optional.
</description>
<arg name="surface" type="object" interface="wl_surface"
summary="the requesting surface"/>
</request>
<request name="commit">
<description summary="issues the token request">
Requests an activation token based on the different parameters that
have been offered through set_serial, set_surface and set_app_id.
</description>
</request>
<event name="done">
<description summary="the exported activation token">
The 'done' event contains the unique token of this activation request
and notifies that the provider is done.
</description>
<arg name="token" type="string" summary="the exported activation token"/>
</event>
<request name="destroy" type="destructor">
<description summary="destroy the xdg_activation_token_v1 object">
Notify the compositor that the xdg_activation_token_v1 object will no
longer be used. The received token stays valid.
</description>
</request>
</interface>
</protocol>

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<?xml version="1.0" encoding="UTF-8"?>
<protocol name="xdg_decoration_unstable_v1">
<copyright>
Copyright © 2018 Simon Ser
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice (including the next
paragraph) shall be included in all copies or substantial portions of the
Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
</copyright>
<interface name="zxdg_decoration_manager_v1" version="1">
<description summary="window decoration manager">
This interface allows a compositor to announce support for server-side
decorations.
A window decoration is a set of window controls as deemed appropriate by
the party managing them, such as user interface components used to move,
resize and change a window's state.
A client can use this protocol to request being decorated by a supporting
compositor.
If compositor and client do not negotiate the use of a server-side
decoration using this protocol, clients continue to self-decorate as they
see fit.
Warning! The protocol described in this file is experimental and
backward incompatible changes may be made. Backward compatible changes
may be added together with the corresponding interface version bump.
Backward incompatible changes are done by bumping the version number in
the protocol and interface names and resetting the interface version.
Once the protocol is to be declared stable, the 'z' prefix and the
version number in the protocol and interface names are removed and the
interface version number is reset.
</description>
<request name="destroy" type="destructor">
<description summary="destroy the decoration manager object">
Destroy the decoration manager. This doesn't destroy objects created
with the manager.
</description>
</request>
<request name="get_toplevel_decoration">
<description summary="create a new toplevel decoration object">
Create a new decoration object associated with the given toplevel.
Creating an xdg_toplevel_decoration from an xdg_toplevel which has a
buffer attached or committed is a client error, and any attempts by a
client to attach or manipulate a buffer prior to the first
xdg_toplevel_decoration.configure event must also be treated as
errors.
</description>
<arg name="id" type="new_id" interface="zxdg_toplevel_decoration_v1"/>
<arg name="toplevel" type="object" interface="xdg_toplevel"/>
</request>
</interface>
<interface name="zxdg_toplevel_decoration_v1" version="1">
<description summary="decoration object for a toplevel surface">
The decoration object allows the compositor to toggle server-side window
decorations for a toplevel surface. The client can request to switch to
another mode.
The xdg_toplevel_decoration object must be destroyed before its
xdg_toplevel.
</description>
<enum name="error">
<entry name="unconfigured_buffer" value="0"
summary="xdg_toplevel has a buffer attached before configure"/>
<entry name="already_constructed" value="1"
summary="xdg_toplevel already has a decoration object"/>
<entry name="orphaned" value="2"
summary="xdg_toplevel destroyed before the decoration object"/>
</enum>
<request name="destroy" type="destructor">
<description summary="destroy the decoration object">
Switch back to a mode without any server-side decorations at the next
commit.
</description>
</request>
<enum name="mode">
<description summary="window decoration modes">
These values describe window decoration modes.
</description>
<entry name="client_side" value="1"
summary="no server-side window decoration"/>
<entry name="server_side" value="2"
summary="server-side window decoration"/>
</enum>
<request name="set_mode">
<description summary="set the decoration mode">
Set the toplevel surface decoration mode. This informs the compositor
that the client prefers the provided decoration mode.
After requesting a decoration mode, the compositor will respond by
emitting an xdg_surface.configure event. The client should then update
its content, drawing it without decorations if the received mode is
server-side decorations. The client must also acknowledge the configure
when committing the new content (see xdg_surface.ack_configure).
The compositor can decide not to use the client's mode and enforce a
different mode instead.
Clients whose decoration mode depend on the xdg_toplevel state may send
a set_mode request in response to an xdg_surface.configure event and wait
for the next xdg_surface.configure event to prevent unwanted state.
Such clients are responsible for preventing configure loops and must
make sure not to send multiple successive set_mode requests with the
same decoration mode.
</description>
<arg name="mode" type="uint" enum="mode" summary="the decoration mode"/>
</request>
<request name="unset_mode">
<description summary="unset the decoration mode">
Unset the toplevel surface decoration mode. This informs the compositor
that the client doesn't prefer a particular decoration mode.
This request has the same semantics as set_mode.
</description>
</request>
<event name="configure">
<description summary="suggest a surface change">
The configure event asks the client to change its decoration mode. The
configured state should not be applied immediately. Clients must send an
ack_configure in response to this event. See xdg_surface.configure and
xdg_surface.ack_configure for details.
A configure event can be sent at any time. The specified mode must be
obeyed by the client.
</description>
<arg name="mode" type="uint" enum="mode" summary="the decoration mode"/>
</event>
</interface>
</protocol>

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# NOTE: The order of this list determines the order of items in the Guides
# (i.e. Pages) list in the generated documentation
set(source_files
main.md
news.md
quick.md
moving.md
compile.md
build.md
intro.md
context.md
monitor.md
window.md
input.md
vulkan.md
compat.md
internal.md)
set(extra_files DoxygenLayout.xml header.html footer.html extra.css spaces.svg)
set(header_paths
"${GLFW_SOURCE_DIR}/include/GLFW/glfw3.h"
"${GLFW_SOURCE_DIR}/include/GLFW/glfw3native.h")
# Format the source list into a Doxyfile INPUT value that Doxygen can parse
foreach(path IN LISTS header_paths)
string(APPEND GLFW_DOXYGEN_INPUT " \\\n\"${path}\"")
endforeach()
foreach(file IN LISTS source_files)
string(APPEND GLFW_DOXYGEN_INPUT " \\\n\"${CMAKE_CURRENT_SOURCE_DIR}/${file}\"")
endforeach()
set(DOXYGEN_SKIP_DOT TRUE)
find_package(Doxygen)
if (NOT DOXYGEN_FOUND OR DOXYGEN_VERSION VERSION_LESS "1.9.8")
message(STATUS "Documentation generation requires Doxygen 1.9.8 or later")
else()
configure_file(Doxyfile.in Doxyfile @ONLY)
add_custom_command(OUTPUT "html/index.html"
COMMAND "${DOXYGEN_EXECUTABLE}"
WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}"
MAIN_DEPENDENCY Doxyfile
DEPENDS ${header_paths} ${source_files} ${extra_files}
COMMENT "Generating HTML documentation"
VERBATIM)
add_custom_target(docs ALL SOURCES "html/index.html")
set_target_properties(docs PROPERTIES FOLDER "GLFW3")
if (GLFW_INSTALL)
install(DIRECTORY "${GLFW_BINARY_DIR}/docs/html"
DESTINATION "${CMAKE_INSTALL_DOCDIR}")
endif()
endif()

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# Contribution Guide
## Contents
- [Asking a question](#asking-a-question)
- [Reporting a bug](#reporting-a-bug)
- [Reporting a compile or link bug](#reporting-a-compile-or-link-bug)
- [Reporting a segfault or other crash bug](#reporting-a-segfault-or-other-crash-bug)
- [Reporting a context creation bug](#reporting-a-context-creation-bug)
- [Reporting a monitor or video mode bug](#reporting-a-monitor-or-video-mode-bug)
- [Reporting a window, input or event bug](#reporting-a-window-input-or-event-bug)
- [Reporting some other library bug](#reporting-some-other-library-bug)
- [Reporting a documentation bug](#reporting-a-documentation-bug)
- [Reporting a website bug](#reporting-a-website-bug)
- [Requesting a feature](#requesting-a-feature)
- [Contributing a bug fix](#contributing-a-bug-fix)
- [Contributing a feature](#contributing-a-feature)
## Asking a question
Questions about how to use GLFW should be asked either in the [support
section](https://discourse.glfw.org/c/support) of the forum, under the [Stack
Overflow tag](https://stackoverflow.com/questions/tagged/glfw) or [Game
Development tag](https://gamedev.stackexchange.com/questions/tagged/glfw) on
Stack Exchange.
Questions about the design or implementation of GLFW or about future plans
should be asked in the [dev section](https://discourse.glfw.org/c/dev) of the
forum. Please don't open a GitHub issue to discuss design questions without
first checking with a maintainer.
## Reporting a bug
If GLFW is behaving unexpectedly at run-time, start by setting an [error
callback](https://www.glfw.org/docs/latest/intro_guide.html#error_handling).
GLFW will often tell you the cause of an error via this callback. If it
doesn't, that might be a separate bug.
If GLFW is crashing or triggering asserts, make sure that all your object
handles and other pointers are valid.
For bugs where it makes sense, a short, self contained example is absolutely
invaluable. Just put it inline in the body text. Note that if the bug is
reproducible with one of the test programs that come with GLFW, just mention
that instead.
__Don't worry about adding too much information__. Unimportant information can
be abbreviated or removed later, but missing information can stall bug fixing,
especially when your schedule doesn't align with that of the maintainer.
__Please provide text as text, not as images__. This includes code, error
messages and any other text. Text in images cannot be found by other users
searching for the same problem and may have to be re-typed by maintainers when
debugging.
You don't need to manually indent your code or other text to quote it with
GitHub Markdown; just surround it with triple backticks:
```
Some quoted text.
```
You can also add syntax highlighting by appending the common file extension:
```c
int five(void)
{
return 5;
}
```
There are issue labels for both platforms and GPU manufacturers, so there is no
need to mention these in the subject line. If you do, it will be removed when
the issue is labeled.
If your bug is already reported, please add any new information you have, or if
it already has everything, give it a :+1:.
### Reporting a compile or link bug
__Note:__ GLFW needs many system APIs to do its job, which on some platforms
means linking to many system libraries. If you are using GLFW as a static
library, that means your application needs to link to these in addition to GLFW.
__Note:__ Check the [Compiling
GLFW](https://www.glfw.org/docs/latest/compile.html) guide and or [Building
applications](https://www.glfw.org/docs/latest/build.html) guide for before
opening an issue of this kind. Most issues are caused by a missing package or
linker flag.
Always include the __operating system name and version__ (e.g. `Windows
7 64-bit` or `Ubuntu 15.10`) and the __compiler name and version__ (e.g. `Visual
C++ 2015 Update 2`). If you are using an official release of GLFW,
include the __GLFW release version__ (e.g. `3.1.2`), otherwise include the
__GLFW commit ID__ (e.g. `3795d78b14ef06008889cc422a1fb8d642597751`) from Git.
Please also include the __complete build log__ from your compiler and linker,
even if it's long. It can always be shortened later, if necessary.
#### Quick template
```
OS and version:
Compiler version:
Release or commit:
Build log:
```
### Reporting a segfault or other crash bug
Always include the __operating system name and version__ (e.g. `Windows
7 64-bit` or `Ubuntu 15.10`). If you are using an official release of GLFW,
include the __GLFW release version__ (e.g. `3.1.2`), otherwise include the
__GLFW commit ID__ (e.g. `3795d78b14ef06008889cc422a1fb8d642597751`) from Git.
Please also include any __error messages__ provided to your application via the
[error
callback](https://www.glfw.org/docs/latest/intro_guide.html#error_handling) and
the __full call stack__ of the crash, or if the crash does not occur in debug
mode, mention that instead.
#### Quick template
```
OS and version:
Release or commit:
Error messages:
Call stack:
```
### Reporting a context creation bug
__Note:__ Windows ships with graphics drivers that do not support OpenGL. If
GLFW says that your machine lacks support for OpenGL, it very likely does.
Install drivers from the computer manufacturer or graphics card manufacturer
([Nvidia](https://www.geforce.com/drivers),
[AMD](https://www.amd.com/en/support),
[Intel](https://www-ssl.intel.com/content/www/us/en/support/detect.html)) to
fix this.
__Note:__ AMD only supports OpenGL ES on Windows via EGL. See the
[GLFW\_CONTEXT\_CREATION\_API](https://www.glfw.org/docs/latest/window_guide.html#window_hints_ctx)
hint for how to select EGL.
Please verify that context creation also fails with the `glfwinfo` tool before
reporting it as a bug. This tool is included in the GLFW source tree as
`tests/glfwinfo.c` and is built along with the library. It has switches for all
GLFW context and framebuffer hints. Run `glfwinfo -h` for a complete list.
Always include the __operating system name and version__ (e.g. `Windows
7 64-bit` or `Ubuntu 15.10`). If you are using an official release of GLFW,
include the __GLFW release version__ (e.g. `3.1.2`), otherwise include the
__GLFW commit ID__ (e.g. `3795d78b14ef06008889cc422a1fb8d642597751`) from Git.
If you are running your program in a virtual machine, please mention this and
include the __VM name and version__ (e.g. `VirtualBox 5.1`).
Please also include the __GLFW version string__ (`3.2.0 X11 EGL clock_gettime
/dev/js`), as described
[here](https://www.glfw.org/docs/latest/intro.html#intro_version_string), the
__GPU model and driver version__ (e.g. `GeForce GTX660 with 352.79`), and the
__output of `glfwinfo`__ (with switches matching any hints you set in your
code) when reporting this kind of bug. If this tool doesn't run on the machine,
mention that instead.
#### Quick template
```
OS and version:
GPU and driver:
Release or commit:
Version string:
glfwinfo output:
```
### Reporting a monitor or video mode bug
__Note:__ On headless systems on some platforms, no monitors are reported. This
causes glfwGetPrimaryMonitor to return `NULL`, which not all applications are
prepared for.
__Note:__ Some third-party tools report more video modes than are approved of
by the OS. For safety and compatibility, GLFW only reports video modes the OS
wants programs to use. This is not a bug.
The `monitors` tool is included in the GLFW source tree as `tests/monitors.c`
and is built along with the library. It lists all information GLFW provides
about monitors it detects.
Always include the __operating system name and version__ (e.g. `Windows
7 64-bit` or `Ubuntu 15.10`). If you are using an official release of GLFW,
include the __GLFW release version__ (e.g. `3.1.2`), otherwise include the
__GLFW commit ID__ (e.g. `3795d78b14ef06008889cc422a1fb8d642597751`) from Git.
If you are running your program in a virtual machine, please mention this and
include the __VM name and version__ (e.g. `VirtualBox 5.1`).
Please also include any __error messages__ provided to your application via the
[error
callback](https://www.glfw.org/docs/latest/intro_guide.html#error_handling) and
the __output of `monitors`__ when reporting this kind of bug. If this tool
doesn't run on the machine, mention this instead.
#### Quick template
```
OS and version:
Release or commit:
Error messages:
monitors output:
```
### Reporting a window, input or event bug
__Note:__ The exact ordering of related window events will sometimes differ.
__Note:__ Window moving and resizing (by the user) will block the main thread on
some platforms. This is not a bug. Set a [refresh
callback](https://www.glfw.org/docs/latest/window.html#window_refresh) if you
want to keep the window contents updated during a move or size operation.
The `events` tool is included in the GLFW source tree as `tests/events.c` and is
built along with the library. It prints all information provided to every
callback supported by GLFW as events occur. Each event is listed with the time
and a unique number to make discussions about event logs easier. The tool has
command-line options for creating multiple windows and full screen windows.
Always include the __operating system name and version__ (e.g. `Windows
7 64-bit` or `Ubuntu 15.10`). If you are using an official release of GLFW,
include the __GLFW release version__ (e.g. `3.1.2`), otherwise include the
__GLFW commit ID__ (e.g. `3795d78b14ef06008889cc422a1fb8d642597751`) from Git.
If you are running your program in a virtual machine, please mention this and
include the __VM name and version__ (e.g. `VirtualBox 5.1`).
Please also include any __error messages__ provided to your application via the
[error
callback](https://www.glfw.org/docs/latest/intro_guide.html#error_handling) and
if relevant, the __output of `events`__ when reporting this kind of bug. If
this tool doesn't run on the machine, mention this instead.
__X11:__ If possible, please include what desktop environment (e.g. GNOME,
Unity, KDE) and/or window manager (e.g. Openbox, dwm, Window Maker) you are
running. If the bug is related to keyboard input, please include any input
method (e.g. ibus, SCIM) you are using.
#### Quick template
```
OS and version:
Release or commit:
Error messages:
events output:
```
### Reporting some other library bug
Always include the __operating system name and version__ (e.g. `Windows
7 64-bit` or `Ubuntu 15.10`). If you are using an official release of GLFW,
include the __GLFW release version__ (e.g. `3.1.2`), otherwise include the
__GLFW commit ID__ (e.g. `3795d78b14ef06008889cc422a1fb8d642597751`) from Git.
Please also include any __error messages__ provided to your application via the
[error
callback](https://www.glfw.org/docs/latest/intro_guide.html#error_handling), if
relevant.
#### Quick template
```
OS and version:
Release or commit:
Error messages:
```
### Reporting a documentation bug
If you found a bug in the documentation, including this file, then it's fine to
just link to that web page or mention that source file. You don't need to match
the source to the output or vice versa.
### Reporting a website bug
If the bug is in the documentation (anything under `/docs/`) then please see the
section above. Bugs in the rest of the site are reported to the [website
source repository](https://github.com/glfw/website/issues).
## Requesting a feature
Please explain why you need the feature and how you intend to use it. If you
have a specific API design in mind, please add that as well. If you have or are
planning to write code for the feature, see the section below.
If there already is a request for the feature you need, add your specific use
case unless it is already mentioned. If it is, give it a :+1:.
## Contributing a bug fix
__Note:__ You must have all necessary [intellectual
property rights](https://en.wikipedia.org/wiki/Intellectual_property) to any
code you contribute. If you did not write the code yourself, you must explain
where it came from and under what license you received it. Even code using the
same license as GLFW may not be copied without attribution.
__There is no preferred patch size__. A one character fix is just as welcome as
a thousand line one, if that is the appropriate size for the fix.
In addition to the code, a complete bug fix includes:
- Change log entry in `README.md`, describing the incorrect behavior
- Credits entries in `CONTRIBUTORS.md` for all authors of the bug fix
Bug fixes will not be rejected because they don't include all the above parts,
but please keep in mind that maintainer time is finite and that there are many
other bugs and features to work on.
If the patch fixes a bug introduced after the last release, it should not get
a change log entry.
If you haven't already, read the excellent article [How to Write a Git Commit
Message](https://chris.beams.io/posts/git-commit/).
## Contributing a feature
__Note:__ You must have all necessary rights to any code you contribute. If you
did not write the code yourself, you must explain where it came from and under
what license. Even code using the same license as GLFW may not be copied
without attribution.
__Note:__ If you haven't already implemented the feature, check first if there
already is an open issue for it and if it's already being developed in an
[experimental branch](https://github.com/glfw/glfw/branches/all).
__There is no preferred patch size__. A one-character change is just as welcome
as one adding a thousand lines, if that is the appropriate size for the
feature.
In addition to the code, a complete feature includes:
- Change log entry in `README.md`, listing all new symbols
- News page entry in `docs/news.md`, briefly describing the feature
- Guide documentation, with minimal examples, in the relevant guide in the `docs` folder
- Reference documentation, with all applicable tags
- Cross-references and mentions in appropriate places
- Credits entries in `CONTRIBUTORS.md` for all authors of the feature
If the feature requires platform-specific code, at minimum stubs must be added
for the new platform function to all supported and experimental platforms.
If it adds a new callback, support for it must be added to `tests/event.c`.
If it adds a new monitor property, support for it must be added to
`tests/monitor.c`.
If it adds a new OpenGL, OpenGL ES or Vulkan option or extension, support
for it must be added to `tests/glfwinfo.c` and the behavior of the library when
the extension is missing documented in `docs/compat.md`.
If you haven't already, read the excellent article [How to Write a Git Commit
Message](https://chris.beams.io/posts/git-commit/).
Features will not be rejected because they don't include all the above parts,
but please keep in mind that maintainer time is finite and that there are many
other features and bugs to work on.
Please also keep in mind that any part of the public API that has been included
in a release cannot be changed until the next _major_ version. Features can be
added and existing parts can sometimes be overloaded (in the general sense of
doing more things, not in the C++ sense), but code written to the API of one
minor release should both compile and run on subsequent minor releases.

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<doxygenlayout version="1.0">
<!-- Generated by doxygen 1.8.14 -->
<!-- Navigation index tabs for HTML output -->
<navindex>
<tab type="mainpage" visible="yes" title="Introduction"/>
<tab type="user" url="quick_guide.html" title="Tutorial"/>
<tab type="pages" visible="yes" title="Guides" intro=""/>
<tab type="topics" visible="yes" title="Reference" intro=""/>
<tab type="filelist" visible="yes" title="Files"/>
</navindex>
<!-- Layout definition for a file page -->
<file>
<detaileddescription title="Description"/>
<includes visible="$SHOW_INCLUDE_FILES"/>
<sourcelink visible="yes"/>
<memberdecl>
<constantgroups visible="yes" title=""/>
<defines title=""/>
<typedefs title=""/>
<enums title=""/>
<functions title=""/>
<variables title=""/>
<membergroups visible="yes"/>
</memberdecl>
<memberdef>
<defines title=""/>
<typedefs title=""/>
<enums title=""/>
<functions title=""/>
<variables title=""/>
</memberdef>
<authorsection/>
</file>
<!-- Layout definition for a group page -->
<group>
<detaileddescription title="Description"/>
<memberdecl>
<nestedgroups visible="yes" title=""/>
<dirs visible="yes" title=""/>
<files visible="yes" title=""/>
<defines title=""/>
<typedefs title=""/>
<enums title=""/>
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# Support resources
See the [latest documentation](https://www.glfw.org/docs/latest/) for tutorials,
guides and the API reference.
If you have questions about using GLFW, we have a
[forum](https://discourse.glfw.org/).
Bugs are reported to our [issue tracker](https://github.com/glfw/glfw/issues).
Please check the [contribution
guide](https://github.com/glfw/glfw/blob/master/docs/CONTRIBUTING.md) for
information on what to include when reporting a bug.

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# Building applications {#build_guide}
[TOC]
This is about compiling and linking applications that use GLFW. For information on
how to write such applications, start with the
[introductory tutorial](@ref quick_guide). For information on how to compile
the GLFW library itself, see @ref compile_guide.
This is not a tutorial on compilation or linking. It assumes basic
understanding of how to compile and link a C program as well as how to use the
specific compiler of your chosen development environment. The compilation
and linking process should be explained in your C programming material and in
the documentation for your development environment.
## Including the GLFW header file {#build_include}
You should include the GLFW header in the source files where you use OpenGL or
GLFW.
```c
#include <GLFW/glfw3.h>
```
This header defines all the constants and declares all the types and function
prototypes of the GLFW API. By default, it also includes the OpenGL header from
your development environment. See [option macros](@ref build_macros) below for
how to select OpenGL ES headers and more.
The GLFW header also defines any platform-specific macros needed by your OpenGL
header, so that it can be included without needing any window system headers.
It does this only when needed, so if window system headers are included, the
GLFW header does not try to redefine those symbols. The reverse is not true,
i.e. `windows.h` cannot cope if any Win32 symbols have already been defined.
In other words:
- Use the GLFW header to include OpenGL or OpenGL ES headers portably
- Do not include window system headers unless you will use those APIs directly
- If you do need such headers, include them before the GLFW header
If you are using an OpenGL extension loading library such as [glad][], the
extension loader header should be included before the GLFW one. GLFW attempts
to detect any OpenGL or OpenGL ES header or extension loader header included
before it and will then disable the inclusion of the default OpenGL header.
Most extension loaders also define macros that disable similar headers below it.
[glad]: https://github.com/Dav1dde/glad
```c
#include <glad/gl.h>
#include <GLFW/glfw3.h>
```
Both of these mechanisms depend on the extension loader header defining a known
macro. If yours doesn't or you don't know which one your users will pick, the
@ref GLFW_INCLUDE_NONE macro will explicitly prevent the GLFW header from
including the OpenGL header. This will also allow you to include the two
headers in any order.
```c
#define GLFW_INCLUDE_NONE
#include <GLFW/glfw3.h>
#include <glad/gl.h>
```
### GLFW header option macros {#build_macros}
These macros may be defined before the inclusion of the GLFW header and affect
its behavior.
@anchor GLFW_DLL
__GLFW_DLL__ is required on Windows when using the GLFW DLL, to tell the
compiler that the GLFW functions are defined in a DLL.
The following macros control which OpenGL or OpenGL ES API header is included.
Only one of these may be defined at a time.
@note GLFW does not provide any of the API headers mentioned below. They are
provided by your development environment or your OpenGL, OpenGL ES or Vulkan
SDK, and most of them can be downloaded from the [Khronos Registry][registry].
[registry]: https://www.khronos.org/registry/
@anchor GLFW_INCLUDE_GLCOREARB
__GLFW_INCLUDE_GLCOREARB__ makes the GLFW header include the modern
`GL/glcorearb.h` header (`OpenGL/gl3.h` on macOS) instead of the regular OpenGL
header.
@anchor GLFW_INCLUDE_ES1
__GLFW_INCLUDE_ES1__ makes the GLFW header include the OpenGL ES 1.x `GLES/gl.h`
header instead of the regular OpenGL header.
@anchor GLFW_INCLUDE_ES2
__GLFW_INCLUDE_ES2__ makes the GLFW header include the OpenGL ES 2.0
`GLES2/gl2.h` header instead of the regular OpenGL header.
@anchor GLFW_INCLUDE_ES3
__GLFW_INCLUDE_ES3__ makes the GLFW header include the OpenGL ES 3.0
`GLES3/gl3.h` header instead of the regular OpenGL header.
@anchor GLFW_INCLUDE_ES31
__GLFW_INCLUDE_ES31__ makes the GLFW header include the OpenGL ES 3.1
`GLES3/gl31.h` header instead of the regular OpenGL header.
@anchor GLFW_INCLUDE_ES32
__GLFW_INCLUDE_ES32__ makes the GLFW header include the OpenGL ES 3.2
`GLES3/gl32.h` header instead of the regular OpenGL header.
@anchor GLFW_INCLUDE_NONE
__GLFW_INCLUDE_NONE__ makes the GLFW header not include any OpenGL or OpenGL ES
API header. This is useful in combination with an extension loading library.
If none of the above inclusion macros are defined, the standard OpenGL `GL/gl.h`
header (`OpenGL/gl.h` on macOS) is included, unless GLFW detects the inclusion
guards of any OpenGL, OpenGL ES or extension loader header it knows about.
The following macros control the inclusion of additional API headers. Any
number of these may be defined simultaneously, and/or together with one of the
above macros.
@anchor GLFW_INCLUDE_VULKAN
__GLFW_INCLUDE_VULKAN__ makes the GLFW header include the Vulkan
`vulkan/vulkan.h` header in addition to any selected OpenGL or OpenGL ES header.
@anchor GLFW_INCLUDE_GLEXT
__GLFW_INCLUDE_GLEXT__ makes the GLFW header include the appropriate extension
header for the OpenGL or OpenGL ES header selected above after and in addition
to that header.
@anchor GLFW_INCLUDE_GLU
__GLFW_INCLUDE_GLU__ makes the header include the GLU header in addition to the
header selected above. This should only be used with the standard OpenGL header
and only for compatibility with legacy code. GLU has been deprecated and should
not be used in new code.
@note None of these macros may be defined during the compilation of GLFW itself.
If your build includes GLFW and you define any these in your build files, make
sure they are not applied to the GLFW sources.
## Link with the right libraries {#build_link}
GLFW is essentially a wrapper of various platform-specific APIs and therefore
needs to link against many different system libraries. If you are using GLFW as
a shared library / dynamic library / DLL then it takes care of these links.
However, if you are using GLFW as a static library then your executable will
need to link against these libraries.
On Windows and macOS, the list of system libraries is static and can be
hard-coded into your build environment. See the section for your development
environment below. On Linux and other Unix-like operating systems, the list
varies but can be retrieved in various ways as described below.
A good general introduction to linking is [Beginner's Guide to
Linkers][linker_guide] by David Drysdale.
[linker_guide]: https://www.lurklurk.org/linkers/linkers.html
### With Visual C++ and GLFW binaries {#build_link_win32}
If you are using a downloaded [binary
archive](https://www.glfw.org/download.html), first make sure you have the
archive matching the architecture you are building for (32-bit or 64-bit), or
you will get link errors. Also make sure you are using the binaries for your
version of Visual C++ or you may get other link errors.
There are two version of the static GLFW library in the binary archive, because
it needs to use the same base run-time library variant as the rest of your
executable.
One is named `glfw3.lib` and is for projects with the _Runtime Library_ project
option set to _Multi-threaded DLL_ or _Multi-threaded Debug DLL_. The other is
named `glfw3_mt.lib` and is for projects with _Runtime Library_ set to
_Multi-threaded_ or _Multi-threaded Debug_. To use the static GLFW library you
will need to add `path/to/glfw3.lib` or `path/to/glfw3_mt.lib` to the
_Additional Dependencies_ project option.
If you compiled a GLFW static library yourself then there will only be one,
named `glfw3.lib`, and you have to make sure the run-time library variant
matches.
The DLL version of the GLFW library is named `glfw3.dll`, but you will be
linking against the `glfw3dll.lib` link library. To use the DLL you will need
to add `path/to/glfw3dll.lib` to the _Additional Dependencies_ project option.
All of its dependencies are already listed there by default, but when building
with the DLL version of GLFW, you also need to define the @ref GLFW_DLL. This
can be done either in the _Preprocessor Definitions_ project option or by
defining it in your source code before including the GLFW header.
```c
#define GLFW_DLL
#include <GLFW/glfw3.h>
```
All link-time dependencies for GLFW are already listed in the _Additional
Dependencies_ option by default.
### With MinGW-w64 and GLFW binaries {#build_link_mingw}
This is intended for building a program from the command-line or by writing
a makefile, on Windows with [MinGW-w64][] and GLFW binaries. These can be from
a downloaded and extracted [binary archive](https://www.glfw.org/download.html)
or by compiling GLFW yourself. The paths below assume a binary archive is used.
If you are using a downloaded binary archive, first make sure you have the
archive matching the architecture you are building for (32-bit or 64-bit) or you
will get link errors.
Note that the order of source files and libraries matter for GCC. Dependencies
must be listed after the files that depend on them. Any source files that
depend on GLFW must be listed before the GLFW library. GLFW in turn depends on
`gdi32` and must be listed before it.
[MinGW-w64]: https://www.mingw-w64.org/
If you are using the static version of the GLFW library, which is named
`libglfw3.a`, do:
```sh
gcc -o myprog myprog.c -I path/to/glfw/include path/to/glfw/lib-mingw-w64/libglfw3.a -lgdi32
```
If you are using the DLL version of the GLFW library, which is named
`glfw3.dll`, you will need to use the `libglfw3dll.a` link library.
```sh
gcc -o myprog myprog.c -I path/to/glfw/include path/to/glfw/lib-mingw-w64/libglfw3dll.a -lgdi32
```
The resulting executable will need to find `glfw3.dll` to run, typically by
keeping both files in the same directory.
When you are building with the DLL version of GLFW, you will also need to define
the @ref GLFW_DLL macro. This can be done in your source files, as long as it
done before including the GLFW header:
```c
#define GLFW_DLL
#include <GLFW/glfw3.h>
```
It can also be done on the command-line:
```sh
gcc -o myprog myprog.c -D GLFW_DLL -I path/to/glfw/include path/to/glfw/lib-mingw-w64/libglfw3dll.a -lgdi32
```
### With CMake and GLFW source {#build_link_cmake_source}
This section is about using CMake to compile and link GLFW along with your
application. If you want to use an installed binary instead, see @ref
build_link_cmake_package.
With a few changes to your `CMakeLists.txt` you can have the GLFW source tree
built along with your application.
Add the root directory of the GLFW source tree to your project. This will add
the `glfw` target to your project.
```cmake
add_subdirectory(path/to/glfw)
```
Once GLFW has been added, link your application against the `glfw` target.
This adds the GLFW library and its link-time dependencies as it is currently
configured, the include directory for the GLFW header and, when applicable, the
@ref GLFW_DLL macro.
```cmake
target_link_libraries(myapp glfw)
```
Note that the `glfw` target does not depend on OpenGL, as GLFW loads any OpenGL,
OpenGL ES or Vulkan libraries it needs at runtime. If your application calls
OpenGL directly, instead of using a modern
[extension loader library](@ref context_glext_auto), use the OpenGL CMake
package.
```cmake
find_package(OpenGL REQUIRED)
```
If OpenGL is found, the `OpenGL::GL` target is added to your project, containing
library and include directory paths. Link against this like any other library.
```cmake
target_link_libraries(myapp OpenGL::GL)
```
For a minimal example of a program and GLFW sources built with CMake, see the
[GLFW CMake Starter][cmake_starter] on GitHub.
[cmake_starter]: https://github.com/juliettef/GLFW-CMake-starter
### With CMake and installed GLFW binaries {#build_link_cmake_package}
This section is about using CMake to link GLFW after it has been built and
installed. If you want to build it along with your application instead, see
@ref build_link_cmake_source.
With a few changes to your `CMakeLists.txt` you can locate the package and
target files generated when GLFW is installed.
```cmake
find_package(glfw3 3.5 REQUIRED)
```
Once GLFW has been added to the project, link against it with the `glfw` target.
This adds the GLFW library and its link-time dependencies, the include directory
for the GLFW header and, when applicable, the @ref GLFW_DLL macro.
```cmake
target_link_libraries(myapp glfw)
```
Note that the `glfw` target does not depend on OpenGL, as GLFW loads any OpenGL,
OpenGL ES or Vulkan libraries it needs at runtime. If your application calls
OpenGL directly, instead of using a modern
[extension loader library](@ref context_glext_auto), use the OpenGL CMake
package.
```cmake
find_package(OpenGL REQUIRED)
```
If OpenGL is found, the `OpenGL::GL` target is added to your project, containing
library and include directory paths. Link against this like any other library.
```cmake
target_link_libraries(myapp OpenGL::GL)
```
### With pkg-config and GLFW binaries on Unix {#build_link_pkgconfig}
This is intended for building a program from the command-line or by writing
a makefile, on macOS or any Unix-like system like Linux, FreeBSD and Cygwin.
GLFW supports [pkg-config][], and the `glfw3.pc` pkg-config file is generated
when the GLFW library is built and is installed along with it. A pkg-config
file describes all necessary compile-time and link-time flags and dependencies
needed to use a library. When they are updated or if they differ between
systems, you will get the correct ones automatically.
[pkg-config]: https://www.freedesktop.org/wiki/Software/pkg-config/
A typical compile and link command-line when using the static version of the
GLFW library may look like this:
```sh
cc $(pkg-config --cflags glfw3) -o myprog myprog.c $(pkg-config --static --libs glfw3)
```
If you are using the shared version of the GLFW library, omit the `--static`
flag.
```sh
cc $(pkg-config --cflags glfw3) -o myprog myprog.c $(pkg-config --libs glfw3)
```
You can also use the `glfw3.pc` file without installing it first, by using the
`PKG_CONFIG_PATH` environment variable.
```sh
env PKG_CONFIG_PATH=path/to/glfw/src cc $(pkg-config --cflags glfw3) -o myprog myprog.c $(pkg-config --libs glfw3)
```
The dependencies do not include OpenGL, as GLFW loads any OpenGL, OpenGL ES or
Vulkan libraries it needs at runtime. If your application calls OpenGL
directly, instead of using a modern
[extension loader library](@ref context_glext_auto), you should add the `gl`
pkg-config package.
```sh
cc $(pkg-config --cflags glfw3 gl) -o myprog myprog.c $(pkg-config --libs glfw3 gl)
```
### With Xcode on macOS {#build_link_xcode}
If you are using the dynamic library version of GLFW, add it to the project
dependencies.
If you are using the static library version of GLFW, add it and the Cocoa,
OpenGL, IOKit and QuartzCore frameworks to the project as dependencies. They
can all be found in `/System/Library/Frameworks`.
### With command-line or makefile on macOS {#build_link_osx}
It is recommended that you use [pkg-config](@ref build_link_pkgconfig) when
using installed GLFW binaries from the command line on macOS. That way you will
get any new dependencies added automatically. If you still wish to build
manually, you need to add the required frameworks and libraries to your
command-line yourself using the `-l` and `-framework` switches.
If you are using the dynamic GLFW library, which is named `libglfw.3.dylib`, do:
```sh
cc -o myprog myprog.c -lglfw -framework Cocoa -framework OpenGL -framework IOKit -framework QuartzCore
```
If you are using the static library, named `libglfw3.a`, substitute `-lglfw3`
for `-lglfw`.
Note that you do not add the `.framework` extension to a framework when linking
against it from the command-line.
@note Your machine may have `libGL.*.dylib` style OpenGL library, but that is
for the X Window System and will not work with the macOS native version of GLFW.

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# Standards conformance {#compat_guide}
[TOC]
This guide describes the various API extensions used by this version of GLFW.
It lists what are essentially implementation details, but which are nonetheless
vital knowledge for developers intending to deploy their applications on a wide
range of machines.
The information in this guide is not a part of GLFW API, but merely
preconditions for some parts of the library to function on a given machine. Any
part of this information may change in future versions of GLFW and that will not
be considered a breaking API change.
## X11 extensions, protocols and IPC standards {#compat_x11}
As GLFW uses Xlib directly, without any intervening toolkit library, it has sole
responsibility for interacting well with the many and varied window managers in
use on Unix-like systems. In order for applications and window managers to work
well together, a number of standards and conventions have been developed that
regulate behavior outside the scope of the X11 API; most importantly the
[Inter-Client Communication Conventions Manual][ICCCM] (ICCCM) and [Extended
Window Manager Hints][EWMH] (EWMH) standards.
[ICCCM]: https://www.tronche.com/gui/x/icccm/
[EWMH]: https://standards.freedesktop.org/wm-spec/wm-spec-latest.html
GLFW uses the `_MOTIF_WM_HINTS` window property to support borderless windows.
If the running window manager does not support this property, the
`GLFW_DECORATED` hint will have no effect.
GLFW uses the ICCCM `WM_DELETE_WINDOW` protocol to intercept the user
attempting to close the GLFW window. If the running window manager does not
support this protocol, the close callback will never be called.
GLFW uses the EWMH `_NET_WM_PING` protocol, allowing the window manager notify
the user when the application has stopped responding, i.e. when it has ceased to
process events. If the running window manager does not support this protocol,
the user will not be notified if the application locks up.
GLFW uses the EWMH `_NET_WM_STATE_FULLSCREEN` window state to tell the window
manager to make the GLFW window full screen. If the running window manager does
not support this state, full screen windows may not work properly. GLFW has
a fallback code path in case this state is unavailable, but every window manager
behaves slightly differently in this regard.
GLFW uses the EWMH `_NET_WM_BYPASS_COMPOSITOR` window property to tell a
compositing window manager to un-redirect full screen GLFW windows. If the
running window manager uses compositing but does not support this property then
additional copying may be performed for each buffer swap of full screen windows.
GLFW uses the [clipboard manager protocol][ClipboardManager] to push a clipboard
string (i.e. selection) owned by a GLFW window about to be destroyed to the
clipboard manager. If there is no running clipboard manager, the clipboard
string will be unavailable once the window has been destroyed.
[clipboardManager]: https://www.freedesktop.org/wiki/ClipboardManager/
GLFW uses the [X drag-and-drop protocol][XDND] to provide file drop events. If
the application originating the drag does not support this protocol, drag and
drop will not work.
[XDND]: https://www.freedesktop.org/wiki/Specifications/XDND/
GLFW uses the XRandR 1.3 extension to provide multi-monitor support. If the
running X server does not support this version of this extension, multi-monitor
support will not function and only a single, desktop-spanning monitor will be
reported.
GLFW uses the XRandR 1.3 and Xf86vidmode extensions to provide gamma ramp
support. If the running X server does not support either or both of these
extensions, gamma ramp support will not function.
GLFW uses the Xkb extension and detectable auto-repeat to provide keyboard
input. If the running X server does not support this extension, a non-Xkb
fallback path is used.
GLFW uses the XInput2 extension to provide raw, non-accelerated mouse motion
when the cursor is disabled. If the running X server does not support this
extension, regular accelerated mouse motion will be used.
GLFW uses both the XRender extension and the compositing manager to support
transparent window framebuffers. If the running X server does not support this
extension or there is no running compositing manager, the
`GLFW_TRANSPARENT_FRAMEBUFFER` framebuffer hint will have no effect.
GLFW uses both the Xcursor extension and the freedesktop cursor conventions to
provide an expanded set of standard cursor shapes. If the running X server does
not support this extension or the current cursor theme does not support the
conventions, the `GLFW_RESIZE_NWSE_CURSOR`, `GLFW_RESIZE_NESW_CURSOR` and
`GLFW_NOT_ALLOWED_CURSOR` shapes will not be available and other shapes may use
legacy images.
## Wayland protocols and IPC standards {#compat_wayland}
As GLFW uses libwayland directly, without any intervening toolkit library, it
has sole responsibility for interacting well with every compositor in use on
Unix-like systems. Most of the features are provided by the core protocol,
while cursor support is provided by the libwayland-cursor helper library, EGL
integration by libwayland-egl, and keyboard handling by
[libxkbcommon](https://xkbcommon.org/). In addition, GLFW uses some additional
Wayland protocols to implement certain features if the compositor supports them.
GLFW uses xkbcommon 0.5.0 to provide key and text input support. Earlier
versions are not supported.
GLFW uses the [xdg-shell][] protocol to provide better window management. This
protocol is mandatory for GLFW to display a window.
[xdg-shell]: https://wayland.app/protocols/xdg-shell
GLFW uses the [relative-pointer-unstable-v1][] protocol alongside the
[pointer-constraints-unstable-v1][] protocol to implement disabled cursor. If
the running compositor does not support both of these protocols, disabling the
cursor will have no effect.
[relative-pointer-unstable-v1]: https://wayland.app/protocols/relative-pointer-unstable-v1
[pointer-constraints-unstable-v1]: https://wayland.app/protocols/pointer-constraints-unstable-v1
GLFW uses the [idle-inhibit-unstable-v1][] protocol to prohibit the screensaver
from starting. If the running compositor does not support this protocol, the
screensaver may start even for full screen windows.
[idle-inhibit-unstable-v1]: https://wayland.app/protocols/idle-inhibit-unstable-v1
GLFW uses the [libdecor][] library for window decorations, where available.
This in turn provides good quality client-side decorations (drawn by the
application) on desktop systems that do not support server-side decorations
(drawn by the window manager). On systems that do not provide either libdecor
or xdg-decoration, very basic window decorations are provided. These do not
include the window title or any caption buttons.
[libdecor]: https://gitlab.freedesktop.org/libdecor/libdecor
GLFW uses the [xdg-decoration-unstable-v1][] protocol to request decorations to
be drawn around its windows. This protocol is part of wayland-protocols 1.15,
and mandatory at build time. If the running compositor does not support this
protocol, a very simple frame will be drawn by GLFW itself, using the
[viewporter][] protocol alongside subsurfaces. If the running compositor does
not support these protocols either, no decorations will be drawn around windows.
[xdg-decoration-unstable-v1]: https://wayland.app/protocols/xdg-decoration-unstable-v1
[viewporter]: https://wayland.app/protocols/viewporter
GLFW uses the [xdg-activation-v1][] protocol to implement window focus and
attention requests. If the running compositor does not support this protocol,
window focus and attention requests do nothing.
[xdg-activation-v1]: https://wayland.app/protocols/xdg-activation-v1
GLFW uses the [fractional-scale-v1][] protocol to implement fine-grained
framebuffer scaling. If the running compositor does not support this protocol,
the @ref GLFW_SCALE_FRAMEBUFFER window hint will only be able to scale the
framebuffer by integer scales. This will typically be the smallest integer not
less than the actual scale.
[fractional-scale-v1]: https://wayland.app/protocols/fractional-scale-v1
## GLX extensions {#compat_glx}
The GLX API is the default API used to create OpenGL contexts on Unix-like
systems using the X Window System.
GLFW uses the GLX 1.3 `GLXFBConfig` functions to enumerate and select framebuffer pixel
formats. If GLX 1.3 is not supported, @ref glfwInit will fail.
GLFW uses the `GLX_MESA_swap_control,` `GLX_EXT_swap_control` and
`GLX_SGI_swap_control` extensions to provide vertical retrace synchronization
(or _vsync_), in that order of preference. When none of these extensions are
available, calling @ref glfwSwapInterval will have no effect.
GLFW uses the `GLX_ARB_multisample` extension to create contexts with
multisampling anti-aliasing. Where this extension is unavailable, the
`GLFW_SAMPLES` hint will have no effect.
GLFW uses the `GLX_ARB_create_context` extension when available, even when
creating OpenGL contexts of version 2.1 and below. Where this extension is
unavailable, the `GLFW_CONTEXT_VERSION_MAJOR` and `GLFW_CONTEXT_VERSION_MINOR`
hints will only be partially supported, the `GLFW_CONTEXT_DEBUG` hint will have
no effect, and setting the `GLFW_OPENGL_PROFILE` or `GLFW_OPENGL_FORWARD_COMPAT`
hints to `GLFW_TRUE` will cause @ref glfwCreateWindow to fail.
GLFW uses the `GLX_ARB_create_context_profile` extension to provide support for
context profiles. Where this extension is unavailable, setting the
`GLFW_OPENGL_PROFILE` hint to anything but `GLFW_OPENGL_ANY_PROFILE`, or setting
`GLFW_CLIENT_API` to anything but `GLFW_OPENGL_API` or `GLFW_NO_API` will cause
@ref glfwCreateWindow to fail.
GLFW uses the `GLX_ARB_context_flush_control` extension to provide control over
whether a context is flushed when it is released (made non-current). Where this
extension is unavailable, the `GLFW_CONTEXT_RELEASE_BEHAVIOR` hint will have no
effect and the context will always be flushed when released.
GLFW uses the `GLX_ARB_framebuffer_sRGB` and `GLX_EXT_framebuffer_sRGB`
extensions to provide support for sRGB framebuffers. Where both of these
extensions are unavailable, the `GLFW_SRGB_CAPABLE` hint will have no effect.
## WGL extensions {#compat_wgl}
The WGL API is used to create OpenGL contexts on Microsoft Windows and other
implementations of the Win32 API, such as Wine.
GLFW uses either the `WGL_EXT_extension_string` or the
`WGL_ARB_extension_string` extension to check for the presence of all other WGL
extensions listed below. If both are available, the EXT one is preferred. If
neither is available, no other extensions are used and many GLFW features
related to context creation will have no effect or cause errors when used.
GLFW uses the `WGL_EXT_swap_control` extension to provide vertical retrace
synchronization (or _vsync_). Where this extension is unavailable, calling @ref
glfwSwapInterval will have no effect.
GLFW uses the `WGL_ARB_pixel_format` and `WGL_ARB_multisample` extensions to
create contexts with multisampling anti-aliasing. Where these extensions are
unavailable, the `GLFW_SAMPLES` hint will have no effect.
GLFW uses the `WGL_ARB_create_context` extension when available, even when
creating OpenGL contexts of version 2.1 and below. Where this extension is
unavailable, the `GLFW_CONTEXT_VERSION_MAJOR` and `GLFW_CONTEXT_VERSION_MINOR`
hints will only be partially supported, the `GLFW_CONTEXT_DEBUG` hint will have
no effect, and setting the `GLFW_OPENGL_PROFILE` or `GLFW_OPENGL_FORWARD_COMPAT`
hints to `GLFW_TRUE` will cause @ref glfwCreateWindow to fail.
GLFW uses the `WGL_ARB_create_context_profile` extension to provide support for
context profiles. Where this extension is unavailable, setting the
`GLFW_OPENGL_PROFILE` hint to anything but `GLFW_OPENGL_ANY_PROFILE` will cause
@ref glfwCreateWindow to fail.
GLFW uses the `WGL_ARB_context_flush_control` extension to provide control over
whether a context is flushed when it is released (made non-current). Where this
extension is unavailable, the `GLFW_CONTEXT_RELEASE_BEHAVIOR` hint will have no
effect and the context will always be flushed when released.
GLFW uses the `WGL_ARB_framebuffer_sRGB` and `WGL_EXT_framebuffer_sRGB`
extensions to provide support for sRGB framebuffers. When both of these
extensions are unavailable, the `GLFW_SRGB_CAPABLE` hint will have no effect.
## OpenGL on macOS {#compat_osx}
macOS (as of version 14) still provides OpenGL but it has been deprecated by
Apple. While the API is still available, it is poorly maintained and frequently
develops new issues. On modern systems, OpenGL is implemented on top of Metal
and is not fully thread-safe.
macOS does not support OpenGL stereo rendering. If the `GLFW_STEREO` hint is
set to true, OpenGL context creation will always fail.
macOS only supports OpenGL core profile contexts that are forward-compatible,
but the `GLFW_OPENGL_FORWARD_COMPAT` hint is ignored since GLFW 3.4. Even if
this hint is set to false (the default), a forward-compatible context will be
returned if available.
macOS does not support OpenGL debug contexts, no-error contexts or robustness.
The `GLFW_CONTEXT_DEBUG`, `GLFW_CONTEXT_NO_ERROR` and `GLFW_CONTEXT_ROBUSTNESS`
hints will be ignored and a context without these features will be returned.
macOS does not flush OpenGL contexts when they are made non-current. The
`GLFW_CONTEXT_RELEASE_BEHAVIOR` hint is ignored and the release behavior will
always be the equivalent of `GLFW_RELEASE_BEHAVIOR_NONE`. If you need a context
to be flushed, call `glFlush` before making it non-current.
## Vulkan loader and API {#compat_vulkan}
By default, GLFW uses the standard system-wide Vulkan loader to access the
Vulkan API on all platforms except macOS. This is installed by both graphics
drivers and Vulkan SDKs. If either the loader or at least one minimally
functional ICD is missing, @ref glfwVulkanSupported will return `GLFW_FALSE` and
all other Vulkan-related functions will fail with an @ref GLFW_API_UNAVAILABLE
error.
## Vulkan WSI extensions {#compat_wsi}
The Vulkan WSI extensions are used to create Vulkan surfaces for GLFW windows on
all supported platforms.
GLFW uses the `VK_KHR_surface` and `VK_KHR_win32_surface` extensions to create
surfaces on Microsoft Windows. If any of these extensions are not available,
@ref glfwGetRequiredInstanceExtensions will return an empty list and window
surface creation will fail.
GLFW uses the `VK_KHR_surface` and either the `VK_MVK_macos_surface` or
`VK_EXT_metal_surface` extensions to create surfaces on macOS. If any of these
extensions are not available, @ref glfwGetRequiredInstanceExtensions will
return an empty list and window surface creation will fail.
GLFW uses the `VK_KHR_surface` and either the `VK_KHR_xlib_surface` or
`VK_KHR_xcb_surface` extensions to create surfaces on X11. If `VK_KHR_surface`
or both `VK_KHR_xlib_surface` and `VK_KHR_xcb_surface` are not available, @ref
glfwGetRequiredInstanceExtensions will return an empty list and window surface
creation will fail.
GLFW uses the `VK_KHR_surface` and `VK_KHR_wayland_surface` extensions to create
surfaces on Wayland. If any of these extensions are not available, @ref
glfwGetRequiredInstanceExtensions will return an empty list and window surface
creation will fail.

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# Compiling GLFW {#compile_guide}
[TOC]
This is about compiling the GLFW library itself. For information on how to
build applications that use GLFW, see @ref build_guide.
GLFW uses some C99 features and does not support Visual Studio 2012 and earlier.
## Using CMake {#compile_cmake}
GLFW behaves like most other libraries that use CMake so this guide mostly
describes the standard configure, generate and compile sequence. If you are already
familiar with this from other projects, you may want to focus on the @ref
compile_deps and @ref compile_options sections for GLFW-specific information.
GLFW uses [CMake](https://cmake.org/) to generate project files or makefiles
for your chosen development environment. To compile GLFW, first generate these
files with CMake and then use them to compile the GLFW library.
If you are on Windows and macOS you can [download
CMake](https://cmake.org/download/) from their site.
If you are on a Unix-like system such as Linux, FreeBSD or Cygwin or have
a package system like Fink, MacPorts or Homebrew, you can install its CMake
package.
CMake is a complex tool and this guide will only show a few of the possible ways
to set up and compile GLFW. The CMake project has their own much more detailed
[CMake user guide][cmake-guide] that includes everything in this guide not
specific to GLFW. It may be a useful companion to this one.
[cmake-guide]: https://cmake.org/cmake/help/latest/guide/user-interaction/
### Installing dependencies {#compile_deps}
The C/C++ development environments in Visual Studio, Xcode and MinGW come with
all necessary dependencies for compiling GLFW, but on Unix-like systems like
Linux and FreeBSD you will need a few extra packages.
#### Dependencies for Wayland and X11 {#compile_deps_wayland}
By default, both the Wayland and X11 backends are enabled on Linux and other Unix-like
systems (except macOS). To disable one or both of these, set the @ref GLFW_BUILD_WAYLAND
or @ref GLFW_BUILD_X11 CMake options in the next step when generating build files.
To compile GLFW for both Wayland and X11, you need to have the X11, Wayland and xkbcommon
development packages installed. On some systems a few other packages are also required.
None of the development packages above are needed to build or run programs that use an
already compiled GLFW library.
On Debian and derivatives like Ubuntu and Linux Mint you will need the `libwayland-dev`
and `libxkbcommon-dev` packages to compile for Wayland and the `xorg-dev` meta-package to
compile for X11. These will pull in all other dependencies.
```sh
sudo apt install libwayland-dev libxkbcommon-dev xorg-dev
```
On Fedora and derivatives like Red Hat you will need the `wayland-devel` and
`libxkbcommon-devel` packages to compile for Wayland and the `libXcursor-devel`,
`libXi-devel`, `libXinerama-devel` and `libXrandr-devel` packages to compile for X11.
These will pull in all other dependencies.
```sh
sudo dnf install wayland-devel libxkbcommon-devel libXcursor-devel libXi-devel libXinerama-devel libXrandr-devel
```
On FreeBSD you will need the `wayland`, `libxkbcommon` and `evdev-proto` packages to
compile for Wayland. The X11 headers are installed along the end-user X11 packages, so if
you have an X server running you should have the headers as well. If not, install the
`xorgproto` package to compile for X11.
```sh
pkg install wayland libxkbcommon evdev-proto xorgproto
```
On Cygwin Wayland is not supported but you will need the `libXcursor-devel`,
`libXi-devel`, `libXinerama-devel`, `libXrandr-devel` and `libXrender-devel` packages to
compile for X11. These can be found in the Libs section of the GUI installer and will
pull in all other dependencies.
Once you have the required dependencies, move on to @ref compile_generate.
### Generating build files with CMake {#compile_generate}
Once you have all necessary dependencies it is time to generate the project
files or makefiles for your development environment. CMake needs two paths for
this:
- the path to the root directory of the GLFW source tree (not its `src`
subdirectory)
- the path to the directory where the generated build files and compiled
binaries will be placed
If these are the same, it is called an in-tree build, otherwise it is called an
out-of-tree build.
Out-of-tree builds are recommended as they avoid cluttering up the source tree.
They also allow you to have several build directories for different
configurations all using the same source tree.
A common pattern when building a single configuration is to have a build
directory named `build` in the root of the source tree.
#### Generating with the CMake GUI {#compile_generate_gui}
Start the CMake GUI and set the paths to the source and build directories
described above. Then press _Configure_ and _Generate_.
If you wish change any CMake variables in the list, press _Configure_ and then
_Generate_ to have the new values take effect. The variable list will be
populated after the first configure step.
By default, GLFW will use Wayland and X11 on Linux and other Unix-like systems other than
macOS. To disable support for one or both of these, set the @ref GLFW_BUILD_WAYLAND
and/or @ref GLFW_BUILD_X11 option in the GLFW section of the variable list, then apply the
new value as described above.
Once you have generated the project files or makefiles for your chosen
development environment, move on to @ref compile_compile.
#### Generating with command-line CMake {#compile_generate_cli}
To make a build directory, pass the source and build directories to the `cmake`
command. These can be relative or absolute paths. The build directory is
created if it doesn't already exist.
```sh
cmake -S path/to/glfw -B path/to/build
```
It is common to name the build directory `build` and place it in the root of the
source tree when only planning to build a single configuration.
```sh
cd path/to/glfw
cmake -S . -B build
```
Without other flags these will generate Visual Studio project files on Windows
and makefiles on other platforms. You can choose other targets using the `-G`
flag.
```sh
cmake -S path/to/glfw -B path/to/build -G Xcode
```
By default, GLFW will use Wayland and X11 on Linux and other Unix-like systems other than
macOS. To disable support for one or both of these, set the @ref GLFW_BUILD_WAYLAND
and/or @ref GLFW_BUILD_X11 CMake option.
```sh
cmake -S path/to/glfw -B path/to/build -D GLFW_BUILD_X11=0
```
Once you have generated the project files or makefiles for your chosen
development environment, move on to @ref compile_compile.
### Compiling the library {#compile_compile}
You should now have all required dependencies and the project files or makefiles
necessary to compile GLFW. Go ahead and compile the actual GLFW library with
these files as you would with any other project.
With Visual Studio open `GLFW.sln` and use the Build menu. With Xcode open
`GLFW.xcodeproj` and use the Project menu.
With Linux, macOS and other forms of Unix, run `make`.
```sh
cd path/to/build
make
```
With MinGW, it is `mingw32-make`.
```sh
cd path/to/build
mingw32-make
```
Any CMake build directory can also be built with the `cmake` command and the
`--build` flag.
```sh
cmake --build path/to/build
```
This will run the platform specific build tool the directory was generated for.
Once the GLFW library is compiled you are ready to build your application,
linking it to the GLFW library. See @ref build_guide for more information.
## CMake options {#compile_options}
The CMake files for GLFW provide a number of options, although not all are
available on all supported platforms. Some of these are de facto standards
among projects using CMake and so have no `GLFW_` prefix.
If you are using the GUI version of CMake, these are listed and can be changed
from there. If you are using the command-line version of CMake you can use the
`ccmake` ncurses GUI to set options. Some package systems like Ubuntu and other
distributions based on Debian GNU/Linux have this tool in a separate
`cmake-curses-gui` package.
Finally, if you don't want to use any GUI, you can set options from the `cmake`
command-line with the `-D` flag.
```sh
cmake -S path/to/glfw -B path/to/build -D BUILD_SHARED_LIBS=ON
```
### Shared CMake options {#compile_options_shared}
@anchor BUILD_SHARED_LIBS
__BUILD_SHARED_LIBS__ determines whether GLFW is built as a static library or as
a DLL / shared library / dynamic library. This is disabled by default,
producing a static GLFW library. This variable has no `GLFW_` prefix because it
is defined by CMake. If you want to change the library only for GLFW when it is
part of a larger project, see @ref GLFW_LIBRARY_TYPE.
@anchor GLFW_LIBRARY_TYPE
__GLFW_LIBRARY_TYPE__ allows you to override @ref BUILD_SHARED_LIBS only for
GLFW, without affecting other libraries in a larger project. When set, the
value of this option must be a valid CMake library type. Set it to `STATIC` to
build GLFW as a static library, `SHARED` to build it as a shared library
/ dynamic library / DLL, or `OBJECT` to make GLFW a CMake object library.
@anchor GLFW_BUILD_EXAMPLES
__GLFW_BUILD_EXAMPLES__ determines whether the GLFW examples are built
along with the library. This is enabled by default unless GLFW is being built
as a subproject of a larger CMake project.
@anchor GLFW_BUILD_TESTS
__GLFW_BUILD_TESTS__ determines whether the GLFW test programs are
built along with the library. This is enabled by default unless GLFW is being
built as a subproject of a larger CMake project.
@anchor GLFW_BUILD_DOCS
__GLFW_BUILD_DOCS__ determines whether the GLFW documentation is built along
with the library. This is enabled by default if
[Doxygen](https://www.doxygen.nl/) is found by CMake during configuration.
### Win32 specific CMake options {#compile_options_win32}
@anchor GLFW_BUILD_WIN32
__GLFW_BUILD_WIN32__ determines whether to include support for Win32 when compiling the
library. This option is only available when compiling for Windows. This is enabled by
default.
@anchor USE_MSVC_RUNTIME_LIBRARY_DLL
__USE_MSVC_RUNTIME_LIBRARY_DLL__ determines whether to use the DLL version or the
static library version of the Visual C++ runtime library. When enabled, the
DLL version of the Visual C++ library is used. This is enabled by default.
On CMake 3.15 and later you can set the standard CMake [CMAKE_MSVC_RUNTIME_LIBRARY][]
variable instead of this GLFW-specific option.
[CMAKE_MSVC_RUNTIME_LIBRARY]: https://cmake.org/cmake/help/latest/variable/CMAKE_MSVC_RUNTIME_LIBRARY.html
@anchor GLFW_USE_HYBRID_HPG
__GLFW_USE_HYBRID_HPG__ determines whether to export the `NvOptimusEnablement` and
`AmdPowerXpressRequestHighPerformance` symbols, which force the use of the
high-performance GPU on Nvidia Optimus and AMD PowerXpress systems. These symbols
need to be exported by the EXE to be detected by the driver, so the override
will not work if GLFW is built as a DLL. This is disabled by default, letting
the operating system and driver decide.
### macOS specific CMake options {#compile_options_macos}
@anchor GLFW_BUILD_COCOA
__GLFW_BUILD_COCOA__ determines whether to include support for Cocoa when compiling the
library. This option is only available when compiling for macOS. This is enabled by
default.
### Unix-like system specific CMake options {#compile_options_unix}
@anchor GLFW_BUILD_WAYLAND
__GLFW_BUILD_WAYLAND__ determines whether to include support for Wayland when compiling
the library. This option is only available when compiling for Linux and other Unix-like
systems other than macOS. This is enabled by default.
@anchor GLFW_BUILD_X11
__GLFW_BUILD_X11__ determines whether to include support for X11 when compiling the
library. This option is only available when compiling for Linux and other Unix-like
systems other than macOS. This is enabled by default.
## Cross-compilation with CMake and MinGW {#compile_mingw_cross}
Both Cygwin and many Linux distributions have MinGW or MinGW-w64 packages. For
example, Cygwin has the `mingw64-i686-gcc` and `mingw64-x86_64-gcc` packages
for 32- and 64-bit version of MinGW-w64, while Debian GNU/Linux and derivatives
like Ubuntu have the `mingw-w64` package for both.
GLFW has CMake toolchain files in the `CMake` subdirectory that set up
cross-compilation of Windows binaries. To use these files you set the
`CMAKE_TOOLCHAIN_FILE` CMake variable with the `-D` flag add an option when
configuring and generating the build files.
```sh
cmake -S path/to/glfw -B path/to/build -D CMAKE_TOOLCHAIN_FILE=path/to/file
```
The exact toolchain file to use depends on the prefix used by the MinGW or
MinGW-w64 binaries on your system. You can usually see this in the /usr
directory. For example, both the Ubuntu and Cygwin MinGW-w64 packages have
`/usr/x86_64-w64-mingw32` for the 64-bit compilers, so the correct invocation
would be:
```sh
cmake -S path/to/glfw -B path/to/build -D CMAKE_TOOLCHAIN_FILE=CMake/x86_64-w64-mingw32.cmake
```
The path to the toolchain file is relative to the path to the GLFW source tree
passed to the `-S` flag, not to the current directory.
For more details see the [CMake toolchain guide][cmake-toolchains].
[cmake-toolchains]: https://cmake.org/cmake/help/latest/manual/cmake-toolchains.7.html
## Compiling GLFW manually {#compile_manual}
If you wish to compile GLFW without its CMake build environment then you will have to do
at least some platform-detection yourself. There are preprocessor macros for
enabling support for the platforms (window systems) available. There are also optional,
platform-specific macros for various features.
When building, GLFW will expect the necessary configuration macros to be defined
on the command-line. The GLFW CMake files set these as private compile
definitions on the GLFW target but if you compile the GLFW sources manually you
will need to define them yourself.
The window system is used to create windows, handle input, monitors, gamma ramps and
clipboard. The options are:
- @b _GLFW_COCOA to use the Cocoa frameworks
- @b _GLFW_WIN32 to use the Win32 API
- @b _GLFW_WAYLAND to use the Wayland protocol
- @b _GLFW_X11 to use the X Window System
The @b _GLFW_WAYLAND and @b _GLFW_X11 macros may be combined and produces a library that
attempts to detect the appropriate platform at initialization.
If you are building GLFW as a shared library / dynamic library / DLL then you
must also define @b _GLFW_BUILD_DLL. Otherwise, you must not define it.
If you are using a custom name for the Vulkan, EGL, GLX, OSMesa, OpenGL, GLESv1
or GLESv2 library, you can override the default names by defining those you need
of @b _GLFW_VULKAN_LIBRARY, @b _GLFW_EGL_LIBRARY, @b _GLFW_GLX_LIBRARY, @b
_GLFW_OSMESA_LIBRARY, @b _GLFW_OPENGL_LIBRARY, @b _GLFW_GLESV1_LIBRARY and @b
_GLFW_GLESV2_LIBRARY. Otherwise, GLFW will use the built-in default names.
@note None of the @ref build_macros may be defined during the compilation of
GLFW. If you define any of these in your build files, make sure they are not
applied to the GLFW sources.

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# Context guide {#context_guide}
[TOC]
This guide introduces the OpenGL and OpenGL ES context related functions of
GLFW. For details on a specific function in this category, see the @ref
context. There are also guides for the other areas of the GLFW API.
- @ref intro_guide
- @ref window_guide
- @ref vulkan_guide
- @ref monitor_guide
- @ref input_guide
## Context objects {#context_object}
A window object encapsulates both a top-level window and an OpenGL or OpenGL ES
context. It is created with @ref glfwCreateWindow and destroyed with @ref
glfwDestroyWindow or @ref glfwTerminate. See @ref window_creation for more
information.
As the window and context are inseparably linked, the window object also serves
as the context handle.
To test the creation of various kinds of contexts and see their properties, run
the `glfwinfo` test program.
@note Vulkan does not have a context and the Vulkan instance is created via the
Vulkan API itself. If you will be using Vulkan to render to a window, disable
context creation by setting the [GLFW_CLIENT_API](@ref GLFW_CLIENT_API_hint)
hint to `GLFW_NO_API`. For more information, see the @ref vulkan_guide.
### Context creation hints {#context_hints}
There are a number of hints, specified using @ref glfwWindowHint, related to
what kind of context is created. See
[context related hints](@ref window_hints_ctx) in the window guide.
### Context object sharing {#context_sharing}
When creating a window and its OpenGL or OpenGL ES context with @ref
glfwCreateWindow, you can specify another window whose context the new one
should share its objects (textures, vertex and element buffers, etc.) with.
```c
GLFWwindow* second_window = glfwCreateWindow(640, 480, "Second Window", NULL, first_window);
```
Object sharing is implemented by the operating system and graphics driver. On
platforms where it is possible to choose which types of objects are shared, GLFW
requests that all types are shared.
See the relevant chapter of the [OpenGL](https://www.opengl.org/registry/) or
[OpenGL ES](https://www.khronos.org/opengles/) reference documents for more
information. The name and number of this chapter unfortunately varies between
versions and APIs, but has at times been named _Shared Objects and Multiple
Contexts_.
GLFW comes with a bare-bones object sharing example program called `sharing`.
### Offscreen contexts {#context_offscreen}
GLFW doesn't support creating contexts without an associated window. However,
contexts with hidden windows can be created with the
[GLFW_VISIBLE](@ref GLFW_VISIBLE_hint) window hint.
```c
glfwWindowHint(GLFW_VISIBLE, GLFW_FALSE);
GLFWwindow* offscreen_context = glfwCreateWindow(640, 480, "", NULL, NULL);
```
The window never needs to be shown and its context can be used as a plain
offscreen context. Depending on the window manager, the size of a hidden
window's framebuffer may not be usable or modifiable, so framebuffer
objects are recommended for rendering with such contexts.
You should still [process events](@ref events) as long as you have at least one
window, even if none of them are visible.
### Windows without contexts {#context_less}
You can disable context creation by setting the
[GLFW_CLIENT_API](@ref GLFW_CLIENT_API_hint) hint to `GLFW_NO_API`.
Windows without contexts should not be passed to @ref glfwMakeContextCurrent or
@ref glfwSwapBuffers. Doing this generates a @ref GLFW_NO_WINDOW_CONTEXT error.
## Current context {#context_current}
Before you can make OpenGL or OpenGL ES calls, you need to have a current
context of the correct type. A context can only be current for a single thread
at a time, and a thread can only have a single context current at a time.
When moving a context between threads, you must make it non-current on the old
thread before making it current on the new one.
The context of a window is made current with @ref glfwMakeContextCurrent.
```c
glfwMakeContextCurrent(window);
```
The window of the current context is returned by @ref glfwGetCurrentContext.
```c
GLFWwindow* window = glfwGetCurrentContext();
```
The following GLFW functions require a context to be current. Calling any these
functions without a current context will generate a @ref GLFW_NO_CURRENT_CONTEXT
error.
- @ref glfwSwapInterval
- @ref glfwExtensionSupported
- @ref glfwGetProcAddress
## Buffer swapping {#context_swap}
See @ref buffer_swap in the window guide.
## OpenGL and OpenGL ES extensions {#context_glext}
One of the benefits of OpenGL and OpenGL ES is their extensibility.
Hardware vendors may include extensions in their implementations that extend the
API before that functionality is included in a new version of the OpenGL or
OpenGL ES specification, and some extensions are never included and remain
as extensions until they become obsolete.
An extension is defined by:
- An extension name (e.g. `GL_ARB_gl_spirv`)
- New OpenGL tokens (e.g. `GL_SPIR_V_BINARY_ARB`)
- New OpenGL functions (e.g. `glSpecializeShaderARB`)
Note the `ARB` affix, which stands for Architecture Review Board and is used
for official extensions. The extension above was created by the ARB, but there
are many different affixes, like `NV` for Nvidia and `AMD` for, well, AMD. Any
group may also use the generic `EXT` affix. Lists of extensions, together with
their specifications, can be found at the
[OpenGL Registry](https://www.opengl.org/registry/) and
[OpenGL ES Registry](https://www.khronos.org/registry/gles/).
### Loading extension with a loader library {#context_glext_auto}
An extension loader library is the easiest and best way to access both OpenGL and
OpenGL ES extensions and modern versions of the core OpenGL or OpenGL ES APIs.
They will take care of all the details of declaring and loading everything you
need. One such library is [glad](https://github.com/Dav1dde/glad) and there are
several others.
The following example will use glad but all extension loader libraries work
similarly.
First you need to generate the source files using the glad Python script. This
example generates a loader for any version of OpenGL, which is the default for
both GLFW and glad, but loaders for OpenGL ES, as well as loaders for specific
API versions and extension sets can be generated. The generated files are
written to the `output` directory.
```sh
python main.py --generator c --no-loader --out-path output
```
The `--no-loader` option is added because GLFW already provides a function for
loading OpenGL and OpenGL ES function pointers, one that automatically uses the
selected context creation API, and glad can call this instead of having to
implement its own. There are several other command-line options as well. See
the glad documentation for details.
Add the generated `output/src/glad.c`, `output/include/glad/glad.h` and
`output/include/KHR/khrplatform.h` files to your build. Then you need to
include the glad header file, which will replace the OpenGL header of your
development environment. By including the glad header before the GLFW header,
it suppresses the development environment's OpenGL or OpenGL ES header.
```c
#include <glad/glad.h>
#include <GLFW/glfw3.h>
```
Finally, you need to initialize glad once you have a suitable current context.
```c
window = glfwCreateWindow(640, 480, "My Window", NULL, NULL);
if (!window)
{
...
}
glfwMakeContextCurrent(window);
gladLoadGLLoader((GLADloadproc) glfwGetProcAddress);
```
Once glad has been loaded, you have access to all OpenGL core and extension
functions supported by both the context you created and the glad loader you
generated. After that, you are ready to start rendering.
You can specify a minimum required OpenGL or OpenGL ES version with
[context hints](@ref window_hints_ctx). If your needs are more complex, you can
check the actual OpenGL or OpenGL ES version with
[context attributes](@ref window_attribs_ctx), or you can check whether
a specific version is supported by the current context with the
`GLAD_GL_VERSION_x_x` booleans.
```c
if (GLAD_GL_VERSION_3_2)
{
// Call OpenGL 3.2+ specific code
}
```
To check whether a specific extension is supported, use the `GLAD_GL_xxx`
booleans.
```c
if (GLAD_GL_ARB_gl_spirv)
{
// Use GL_ARB_gl_spirv
}
```
### Loading extensions manually {#context_glext_manual}
__Do not use this technique__ unless it is absolutely necessary. An
[extension loader library](@ref context_glext_auto) will save you a ton of
tedious, repetitive, error prone work.
To use a certain extension, you must first check whether the context supports
that extension and then, if it introduces new functions, retrieve the pointers
to those functions. GLFW provides @ref glfwExtensionSupported and @ref
glfwGetProcAddress for manual loading of extensions and new API functions.
This section will demonstrate manual loading of OpenGL extensions. The loading
of OpenGL ES extensions is identical except for the name of the extension header.
#### The glext.h header {#context_glext_header}
The `glext.h` extension header is a continually updated file that defines the
interfaces for all OpenGL extensions. The latest version of this can always be
found at the [OpenGL Registry](https://www.opengl.org/registry/). There are also
extension headers for the various versions of OpenGL ES at the
[OpenGL ES Registry](https://www.khronos.org/registry/gles/). It it strongly
recommended that you use your own copy of the extension header, as the one
included in your development environment may be several years out of date and
may not include the extensions you wish to use.
The header defines function pointer types for all functions of all extensions it
supports. These have names like `PFNGLSPECIALIZESHADERARBPROC` (for
`glSpecializeShaderARB`), i.e. the name is made uppercase and `PFN` (pointer
to function) and `PROC` (procedure) are added to the ends.
To include the extension header, define @ref GLFW_INCLUDE_GLEXT before including
the GLFW header.
```c
#define GLFW_INCLUDE_GLEXT
#include <GLFW/glfw3.h>
```
#### Checking for extensions {#context_glext_string}
A given machine may not actually support the extension (it may have older
drivers or a graphics card that lacks the necessary hardware features), so it
is necessary to check at run-time whether the context supports the extension.
This is done with @ref glfwExtensionSupported.
```c
if (glfwExtensionSupported("GL_ARB_gl_spirv"))
{
// The extension is supported by the current context
}
```
The argument is a null terminated ASCII string with the extension name. If the
extension is supported, @ref glfwExtensionSupported returns `GLFW_TRUE`,
otherwise it returns `GLFW_FALSE`.
#### Fetching function pointers {#context_glext_proc}
Many extensions, though not all, require the use of new OpenGL functions.
These functions often do not have entry points in the client API libraries of
your operating system, making it necessary to fetch them at run time. You can
retrieve pointers to these functions with @ref glfwGetProcAddress.
```c
PFNGLSPECIALIZESHADERARBPROC pfnSpecializeShaderARB = glfwGetProcAddress("glSpecializeShaderARB");
```
In general, you should avoid giving the function pointer variables the (exact)
same name as the function, as this may confuse your linker. Instead, you can
use a different prefix, like above, or some other naming scheme.
Now that all the pieces have been introduced, here is what they might look like
when used together.
```c
#define GLFW_INCLUDE_GLEXT
#include <GLFW/glfw3.h>
#define glSpecializeShaderARB pfnSpecializeShaderARB
PFNGLSPECIALIZESHADERARBPROC pfnSpecializeShaderARB;
// Flag indicating whether the extension is supported
int has_ARB_gl_spirv = 0;
void load_extensions(void)
{
if (glfwExtensionSupported("GL_ARB_gl_spirv"))
{
pfnSpecializeShaderARB = (PFNGLSPECIALIZESHADERARBPROC)
glfwGetProcAddress("glSpecializeShaderARB");
has_ARB_gl_spirv = 1;
}
}
void some_function(void)
{
if (has_ARB_gl_spirv)
{
// Now the extension function can be called as usual
glSpecializeShaderARB(...);
}
}
```

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// NOTE: Please use this file to perform modifications on default style sheets.
//
// You need to install the official Sass CLI tool:
// npm install -g sass
//
// Run this command to regenerate extra.css after you're finished with changes:
// sass --style=compressed extra.scss extra.css
//
// Alternatively you can use online services to regenerate extra.css.
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$default-text-color: hsl(0,0%,30%);
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// Message box color: todo and test
$box-todo-color: hsl(200,80%,85%);
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}
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}
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}
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}
address.footer {
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}
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}
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}
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}
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}
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}
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}
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}
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}
div.contents,div.header {
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margin:0 auto;
padding:0 32px;
background:$content-background-color none;
}
table.doxtable th,table.markdownTable th,dl.reflist dt {
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box-shadow:inset 0 0 32px $table-background-color1;
text-shadow:0 -1px 1px darken($table-background-color1, 15%);
text-align:left;
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}
dl.reflist dt a.el {
color:$default-link-color;
padding:.2em;
border-radius:4px;
background-color:lighten($default-link-color, 40%);
}
div.toc {
float:right;
width:35%;
}
@media screen and (max-width:600px) {
div.toc {
float:none;
width:inherit;
margin:0;
}
}
div.toc h3 {
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}
div.toc ul {
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}
div.toc li {
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list-style-type:disc;
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color:$heading-color;
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}
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color:$prototype-param-color;
}
dl.reflist dt {
border:2px solid $default-border-color;
border-top-left-radius:4px;
border-top-right-radius:4px;
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}
dl.reflist dd {
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border-bottom-right-radius:4px;
border-bottom-left-radius:4px;
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}
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border-spacing:0;
border:2px solid $default-border-color;
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}
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dl.note,dl.pre,dl.post,dl.invariant {
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}
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<address class="footer">
<p>
Last update on $date for $projectname $projectnumber
</p>
</address>
</body>
</html>

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<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen $doxygenversion"/>
<!--BEGIN PROJECT_NAME--><title>$projectname: $title</title><!--END PROJECT_NAME-->
<!--BEGIN !PROJECT_NAME--><title>$title</title><!--END !PROJECT_NAME-->
<link href="$relpath^tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="$relpath^jquery.js"></script>
<script type="text/javascript" src="$relpath^dynsections.js"></script>
$treeview
$search
$mathjax
<link href="$relpath^$stylesheet" rel="stylesheet" type="text/css" />
$extrastylesheet
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<!--BEGIN TITLEAREA-->
<div id="titlearea">
<div class="glfwheader">
<a href="https://www.glfw.org/" id="glfwhome">GLFW</a>
<ul class="glfwnavbar">
<li><a href="https://www.glfw.org/documentation.html">Documentation</a></li>
<li><a href="https://www.glfw.org/download.html">Download</a></li>
<li><a href="https://www.glfw.org/community.html">Community</a></li>
</ul>
</div>
</div>
<!--END TITLEAREA-->
<!-- end header part -->

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# Internal structure {#internals_guide}
[TOC]
There are several interfaces inside GLFW. Each interface has its own area of
responsibility and its own naming conventions.
## Public interface {#internals_public}
The most well-known is the public interface, described in the glfw3.h header
file. This is implemented in source files shared by all platforms and these
files contain no platform-specific code. This code usually ends up calling the
platform and internal interfaces to do the actual work.
The public interface uses the OpenGL naming conventions except with GLFW and
glfw instead of GL and gl. For struct members, where OpenGL sets no precedent,
it use headless camel case.
Examples: `glfwCreateWindow`, `GLFWwindow`, `GLFW_RED_BITS`
## Native interface {#internals_native}
The [native interface](@ref native) is a small set of publicly available
but platform-specific functions, described in the glfw3native.h header file and
used to gain access to the underlying window, context and (on some platforms)
display handles used by the platform interface.
The function names of the native interface are similar to those of the public
interface, but embeds the name of the interface that the returned handle is
from.
Examples: `glfwGetX11Window`, `glfwGetWGLContext`
## Internal interface {#internals_internal}
The internal interface consists of utility functions used by all other
interfaces. It is shared code implemented in the same shared source files as
the public and event interfaces. The internal interface is described in the
internal.h header file.
The internal interface is in charge of GLFW's global data, which it stores in
a `_GLFWlibrary` struct named `_glfw`.
The internal interface uses the same style as the public interface, except all
global names have a leading underscore.
Examples: `_glfwIsValidContextConfig`, `_GLFWwindow`, `_glfw.monitorCount`
## Platform interface {#internals_platform}
The platform interface implements all platform-specific operations as a service
to the public interface. This includes event processing. The platform
interface is never directly called by application code and never directly calls
application-provided callbacks. It is also prohibited from modifying the
platform-independent part of the internal structs. Instead, it calls the event
interface when events interesting to GLFW are received.
The platform interface mostly mirrors those parts of the public interface that needs to
perform platform-specific operations on some or all platforms.
The window system bits of the platform API is called through the `_GLFWplatform` struct of
function pointers, to allow runtime selection of platform. This includes the window and
context creation, input and event processing, monitor and Vulkan surface creation parts of
GLFW. This is located in the global `_glfw` struct.
Examples: `_glfw.platform.createWindow`
The timer, threading and module loading bits of the platform API are plain functions with
a `_glfwPlatform` prefix, as these things are independent of what window system is being
used.
Examples: `_glfwPlatformGetTimerValue`
The platform interface also defines structs that contain platform-specific
global and per-object state. Their names mirror those of the internal
interface, except that an interface-specific suffix is added.
Examples: `_GLFWwindowX11`, `_GLFWcontextWGL`
These structs are incorporated as members into the internal interface structs
using special macros that name them after the specific interface used. This
prevents shared code from accidentally using these members.
Examples: `window->win32.handle`, `_glfw.x11.display`
## Event interface {#internals_event}
The event interface is implemented in the same shared source files as the public
interface and is responsible for delivering the events it receives to the
application, either via callbacks, via window state changes or both.
The function names of the event interface use a `_glfwInput` prefix and the
ObjectEvent pattern.
Examples: `_glfwInputWindowFocus`, `_glfwInputCursorPos`
## Static functions {#internals_static}
Static functions may be used by any interface and have no prefixes or suffixes.
These use headless camel case.
Examples: `isValidElementForJoystick`
## Configuration macros {#internals_config}
GLFW uses a number of configuration macros to select at compile time which
interfaces and code paths to use. They are defined in the GLFW CMake target.
Configuration macros the same style as tokens in the public interface, except
with a leading underscore.
Examples: `_GLFW_WIN32`, `_GLFW_BUILD_DLL`

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# Introduction to the API {#intro_guide}
[TOC]
This guide introduces the basic concepts of GLFW and describes initialization,
error handling and API guarantees and limitations. For a broad but shallow
tutorial, see @ref quick_guide instead. For details on a specific function in
this category, see the @ref init.
There are also guides for the other areas of GLFW.
- @ref window_guide
- @ref context_guide
- @ref vulkan_guide
- @ref monitor_guide
- @ref input_guide
## Initialization and termination {#intro_init}
Before most GLFW functions may be called, the library must be initialized.
This initialization checks what features are available on the machine,
enumerates monitors, initializes the timer and performs any required
platform-specific initialization.
Only the following functions may be called before the library has been
successfully initialized, and only from the main thread.
- @ref glfwGetVersion
- @ref glfwGetVersionString
- @ref glfwPlatformSupported
- @ref glfwGetError
- @ref glfwSetErrorCallback
- @ref glfwInitHint
- @ref glfwInitAllocator
- @ref glfwInitVulkanLoader
- @ref glfwInit
- @ref glfwTerminate
Calling any other function before successful initialization will cause a @ref
GLFW_NOT_INITIALIZED error.
### Initializing GLFW {#intro_init_init}
The library is initialized with @ref glfwInit, which returns `GLFW_FALSE` if an
error occurred.
```c
if (!glfwInit())
{
// Handle initialization failure
}
```
If any part of initialization fails, any parts that succeeded are terminated as
if @ref glfwTerminate had been called. The library only needs to be initialized
once and additional calls to an already initialized library will return
`GLFW_TRUE` immediately.
Once the library has been successfully initialized, it should be terminated
before the application exits. Modern systems are very good at freeing resources
allocated by programs that exit, but GLFW sometimes has to change global system
settings and these might not be restored without termination.
@macos When the library is initialized the main menu and dock icon are created.
These are not desirable for a command-line only program. The creation of the
main menu and dock icon can be disabled with the @ref GLFW_COCOA_MENUBAR init
hint.
### Initialization hints {#init_hints}
Initialization hints are set before @ref glfwInit and affect how the library
behaves until termination. Hints are set with @ref glfwInitHint.
```c
glfwInitHint(GLFW_JOYSTICK_HAT_BUTTONS, GLFW_FALSE);
```
The values you set hints to are never reset by GLFW, but they only take effect
during initialization. Once GLFW has been initialized, any values you set will
be ignored until the library is terminated and initialized again.
Some hints are platform specific. These may be set on any platform but they
will only affect their specific platform. Other platforms will ignore them.
Setting these hints requires no platform specific headers or functions.
#### Shared init hints {#init_hints_shared}
@anchor GLFW_PLATFORM
__GLFW_PLATFORM__ specifies the platform to use for windowing and input.
Possible values are `GLFW_ANY_PLATFORM`, `GLFW_PLATFORM_WIN32`,
`GLFW_PLATFORM_COCOA`, `GLFW_PLATFORM_WAYLAND`, `GLFW_PLATFORM_X11` and
`GLFW_PLATFORM_NULL`. The default value is `GLFW_ANY_PLATFORM`, which will
choose any platform the library includes support for except for the Null
backend.
@anchor GLFW_JOYSTICK_HAT_BUTTONS
__GLFW_JOYSTICK_HAT_BUTTONS__ specifies whether to also expose joystick hats as
buttons, for compatibility with earlier versions of GLFW that did not have @ref
glfwGetJoystickHats. Possible values are `GLFW_TRUE` and `GLFW_FALSE`.
@anchor GLFW_ANGLE_PLATFORM_TYPE_hint
__GLFW_ANGLE_PLATFORM_TYPE__ specifies the platform type (rendering backend) to
request when using OpenGL ES and EGL via [ANGLE][]. If the requested platform
type is unavailable, ANGLE will use its default. Possible values are one of
`GLFW_ANGLE_PLATFORM_TYPE_NONE`, `GLFW_ANGLE_PLATFORM_TYPE_OPENGL`,
`GLFW_ANGLE_PLATFORM_TYPE_OPENGLES`, `GLFW_ANGLE_PLATFORM_TYPE_D3D9`,
`GLFW_ANGLE_PLATFORM_TYPE_D3D11`, `GLFW_ANGLE_PLATFORM_TYPE_VULKAN` and
`GLFW_ANGLE_PLATFORM_TYPE_METAL`.
[ANGLE]: https://chromium.googlesource.com/angle/angle/
The ANGLE platform type is specified via the `EGL_ANGLE_platform_angle`
extension. This extension is not used if this hint is
`GLFW_ANGLE_PLATFORM_TYPE_NONE`, which is the default value.
#### macOS specific init hints {#init_hints_osx}
@anchor GLFW_COCOA_CHDIR_RESOURCES_hint
__GLFW_COCOA_CHDIR_RESOURCES__ specifies whether to set the current directory to
the application to the `Contents/Resources` subdirectory of the application's
bundle, if present. Possible values are `GLFW_TRUE` and `GLFW_FALSE`. This is
ignored on other platforms.
@anchor GLFW_COCOA_MENUBAR_hint
__GLFW_COCOA_MENUBAR__ specifies whether to create the menu bar and dock icon
when GLFW is initialized. This applies whether the menu bar is created from
a nib or manually by GLFW. Possible values are `GLFW_TRUE` and `GLFW_FALSE`.
This is ignored on other platforms.
#### Wayland specific init hints {#init_hints_wayland}
@anchor GLFW_WAYLAND_LIBDECOR_hint
__GLFW_WAYLAND_LIBDECOR__ specifies whether to use [libdecor][] for window
decorations where available. Possible values are `GLFW_WAYLAND_PREFER_LIBDECOR`
and `GLFW_WAYLAND_DISABLE_LIBDECOR`. This is ignored on other platforms.
[libdecor]: https://gitlab.freedesktop.org/libdecor/libdecor
#### X11 specific init hints {#init_hints_x11}
@anchor GLFW_X11_XCB_VULKAN_SURFACE_hint
__GLFW_X11_XCB_VULKAN_SURFACE__ specifies whether to prefer the
`VK_KHR_xcb_surface` extension for creating Vulkan surfaces, or whether to use
the `VK_KHR_xlib_surface` extension. Possible values are `GLFW_TRUE` and
`GLFW_FALSE`. This is ignored on other platforms.
#### Supported and default values {#init_hints_values}
Initialization hint | Default value | Supported values
-------------------------------- | ------------------------------- | ----------------
@ref GLFW_PLATFORM | `GLFW_ANY_PLATFORM` | `GLFW_ANY_PLATFORM`, `GLFW_PLATFORM_WIN32`, `GLFW_PLATFORM_COCOA`, `GLFW_PLATFORM_WAYLAND`, `GLFW_PLATFORM_X11` or `GLFW_PLATFORM_NULL`
@ref GLFW_JOYSTICK_HAT_BUTTONS | `GLFW_TRUE` | `GLFW_TRUE` or `GLFW_FALSE`
@ref GLFW_ANGLE_PLATFORM_TYPE | `GLFW_ANGLE_PLATFORM_TYPE_NONE` | `GLFW_ANGLE_PLATFORM_TYPE_NONE`, `GLFW_ANGLE_PLATFORM_TYPE_OPENGL`, `GLFW_ANGLE_PLATFORM_TYPE_OPENGLES`, `GLFW_ANGLE_PLATFORM_TYPE_D3D9`, `GLFW_ANGLE_PLATFORM_TYPE_D3D11`, `GLFW_ANGLE_PLATFORM_TYPE_VULKAN` or `GLFW_ANGLE_PLATFORM_TYPE_METAL`
@ref GLFW_COCOA_CHDIR_RESOURCES | `GLFW_TRUE` | `GLFW_TRUE` or `GLFW_FALSE`
@ref GLFW_COCOA_MENUBAR | `GLFW_TRUE` | `GLFW_TRUE` or `GLFW_FALSE`
@ref GLFW_WAYLAND_LIBDECOR | `GLFW_WAYLAND_PREFER_LIBDECOR` | `GLFW_WAYLAND_PREFER_LIBDECOR` or `GLFW_WAYLAND_DISABLE_LIBDECOR`
@ref GLFW_X11_XCB_VULKAN_SURFACE | `GLFW_TRUE` | `GLFW_TRUE` or `GLFW_FALSE`
### Runtime platform selection {#platform}
GLFW can be compiled for more than one platform (window system) at once. This lets
a single library binary support both Wayland and X11 on Linux and other Unix-like systems.
You can control platform selection via the @ref GLFW_PLATFORM initialization hint. By
default, this is set to @ref GLFW_ANY_PLATFORM, which will look for supported window
systems in order of priority and select the first one it finds. It can also be set to any
specific platform to have GLFW only look for that one.
```c
glfwInitHint(GLFW_PLATFORM, GLFW_PLATFORM_X11);
```
This mechanism also provides the Null platform, which is always supported but needs to be
explicitly requested. This platform is effectively a stub, emulating a window system on
a single 1080p monitor, but will not interact with any actual window system.
```c
glfwInitHint(GLFW_PLATFORM, GLFW_PLATFORM_NULL);
```
You can test whether a library binary was compiled with support for a specific platform
with @ref glfwPlatformSupported.
```c
if (glfwPlatformSupported(GLFW_PLATFORM_WAYLAND))
glfwInitHint(GLFW_PLATFORM, GLFW_PLATFORM_WAYLAND);
```
Once GLFW has been initialized, you can query which platform was selected with @ref
glfwGetPlatform.
```c
int platform = glfwGetPlatform();
```
If you are using any [native access functions](@ref native), especially on Linux and other
Unix-like systems, then you may need to check that you are calling the ones matching the
selected platform.
### Custom heap memory allocator {#init_allocator}
The heap memory allocator can be customized before initialization with @ref
glfwInitAllocator.
```c
GLFWallocator allocator;
allocator.allocate = my_malloc;
allocator.reallocate = my_realloc;
allocator.deallocate = my_free;
allocator.user = NULL;
glfwInitAllocator(&allocator);
```
The allocator will be made active at the beginning of initialization and will be used by
GLFW until the library has been fully terminated. Any allocator set after initialization
will be picked up only at the next initialization.
The allocator will only be used for allocations that would have been made with
the C standard library. Memory allocations that must be made with platform
specific APIs will still use those.
The allocation function must have a signature matching @ref GLFWallocatefun. It receives
the desired size, in bytes, and the user pointer passed to @ref glfwInitAllocator and
returns the address to the allocated memory block.
```c
void* my_malloc(size_t size, void* user)
{
...
}
```
The documentation for @ref GLFWallocatefun also lists the requirements and limitations for
an allocation function. If the active one does not meet all of these, GLFW may fail.
The reallocation function must have a function signature matching @ref GLFWreallocatefun.
It receives the memory block to be reallocated, the new desired size, in bytes, and the user
pointer passed to @ref glfwInitAllocator and returns the address to the resized memory
block.
```c
void* my_realloc(void* block, size_t size, void* user)
{
...
}
```
The documentation for @ref GLFWreallocatefun also lists the requirements and limitations
for a reallocation function. If the active one does not meet all of these, GLFW may fail.
The deallocation function must have a function signature matching @ref GLFWdeallocatefun.
It receives the memory block to be deallocated and the user pointer passed to @ref
glfwInitAllocator.
```c
void my_free(void* block, void* user)
{
...
}
```
The documentation for @ref GLFWdeallocatefun also lists the requirements and limitations
for a deallocation function. If the active one does not meet all of these, GLFW may fail.
### Terminating GLFW {#intro_init_terminate}
Before your application exits, you should terminate the GLFW library if it has
been initialized. This is done with @ref glfwTerminate.
```c
glfwTerminate();
```
This will destroy any remaining window, monitor and cursor objects, restore any
modified gamma ramps, re-enable the screensaver if it had been disabled and free
any other resources allocated by GLFW.
Once the library is terminated, it is as if it had never been initialized, therefore
you will need to initialize it again before being able to use GLFW. If the
library was not initialized or had already been terminated, it returns
immediately.
## Error handling {#error_handling}
Some GLFW functions have return values that indicate an error, but this is often
not very helpful when trying to figure out what happened or why it occurred.
Other functions have no return value reserved for errors, so error notification
needs a separate channel. Finally, far from all GLFW functions have return
values.
The last [error code](@ref errors) for the calling thread can be queried at any
time with @ref glfwGetError.
```c
int code = glfwGetError(NULL);
if (code != GLFW_NO_ERROR)
handle_error(code);
```
If no error has occurred since the last call, @ref GLFW_NO_ERROR (zero) is
returned. The error is cleared before the function returns.
The error code indicates the general category of the error. Some error codes,
such as @ref GLFW_NOT_INITIALIZED has only a single meaning, whereas others like
@ref GLFW_PLATFORM_ERROR are used for many different errors.
GLFW often has more information about an error than its general category. You
can retrieve a UTF-8 encoded human-readable description along with the error
code. If no error has occurred since the last call, the description is set to
`NULL`.
```c
const char* description;
int code = glfwGetError(&description);
if (description)
display_error_message(code, description);
```
The retrieved description string is only valid until the next error occurs.
This means you must make a copy of it if you want to keep it.
You can also set an error callback, which will be called each time an error
occurs. It is set with @ref glfwSetErrorCallback.
```c
glfwSetErrorCallback(error_callback);
```
The error callback receives the same error code and human-readable description
returned by @ref glfwGetError.
```c
void error_callback(int code, const char* description)
{
display_error_message(code, description);
}
```
The error callback is called after the error is stored, so calling @ref
glfwGetError from within the error callback returns the same values as the
callback argument.
The description string passed to the callback is only valid until the error
callback returns. This means you must make a copy of it if you want to keep it.
__Reported errors are never fatal.__ As long as GLFW was successfully
initialized, it will remain initialized and in a safe state until terminated
regardless of how many errors occur. If an error occurs during initialization
that causes @ref glfwInit to fail, any part of the library that was initialized
will be safely terminated.
Do not rely on a currently invalid call to generate a specific error, as in the
future that same call may generate a different error or become valid.
## Coordinate systems {#coordinate_systems}
GLFW has two primary coordinate systems: the _virtual screen_ and the window
_content area_ or _content area_. Both use the same unit: _virtual screen
coordinates_, or just _screen coordinates_, which don't necessarily correspond
to pixels.
<img src="spaces.svg" width="90%" />
Both the virtual screen and the content area coordinate systems have the X-axis
pointing to the right and the Y-axis pointing down.
Window and monitor positions are specified as the position of the upper-left
corners of their content areas relative to the virtual screen, while cursor
positions are specified relative to a window's content area.
Because the origin of the window's content area coordinate system is also the
point from which the window position is specified, you can translate content
area coordinates to the virtual screen by adding the window position. The
window frame, when present, extends out from the content area but does not
affect the window position.
Almost all positions and sizes in GLFW are measured in screen coordinates
relative to one of the two origins above. This includes cursor positions,
window positions and sizes, window frame sizes, monitor positions and video mode
resolutions.
Two exceptions are the [monitor physical size](@ref monitor_size), which is
measured in millimetres, and [framebuffer size](@ref window_fbsize), which is
measured in pixels.
Pixels and screen coordinates may map 1:1 on your machine, but they won't on
every other machine, for example on a Mac with a Retina display. The ratio
between screen coordinates and pixels may also change at run-time depending on
which monitor the window is currently considered to be on.
## Guarantees and limitations {#guarantees_limitations}
This section describes the conditions under which GLFW can be expected to
function, barring bugs in the operating system or drivers. Use of GLFW outside
these limits may work on some platforms, or on some machines, or some of the
time, or on some versions of GLFW, but it may break at any time and this will
not be considered a bug.
### Pointer lifetimes {#lifetime}
GLFW will never free any pointer you provide to it, and you must never free any
pointer it provides to you.
Many GLFW functions return pointers to dynamically allocated structures, strings
or arrays, and some callbacks are provided with strings or arrays. These are
always managed by GLFW and should never be freed by the application. The
lifetime of these pointers is documented for each GLFW function and callback.
If you need to keep this data, you must copy it before its lifetime expires.
Many GLFW functions accept pointers to structures or strings allocated by the
application. These are never freed by GLFW and are always the responsibility of
the application. If GLFW needs to keep the data in these structures or strings,
it is copied before the function returns.
Pointer lifetimes are guaranteed not to be shortened in future minor or patch
releases.
### Reentrancy {#reentrancy}
GLFW event processing and object destruction are not reentrant. This means that
the following functions must not be called from any callback function:
- @ref glfwDestroyWindow
- @ref glfwDestroyCursor
- @ref glfwPollEvents
- @ref glfwWaitEvents
- @ref glfwWaitEventsTimeout
- @ref glfwTerminate
These functions may be made reentrant in future minor or patch releases, but
functions not on this list will not be made non-reentrant.
### Thread safety {#thread_safety}
Most GLFW functions must only be called from the main thread (the thread that
calls main), but some may be called from any thread once the library has been
initialized. Before initialization the whole library is thread-unsafe.
The reference documentation for every GLFW function states whether it is limited
to the main thread.
Initialization, termination, event processing and the creation and
destruction of windows, cursors and OpenGL and OpenGL ES contexts are all
restricted to the main thread due to limitations of one or several platforms.
Because event processing must be performed on the main thread, all callbacks
except for the error callback will only be called on that thread. The error
callback may be called on any thread, as any GLFW function may generate errors.
The error code and description may be queried from any thread.
- @ref glfwGetError
Empty events may be posted from any thread.
- @ref glfwPostEmptyEvent
The window user pointer and close flag may be read and written from any thread,
but this is not synchronized by GLFW.
- @ref glfwGetWindowUserPointer
- @ref glfwSetWindowUserPointer
- @ref glfwWindowShouldClose
- @ref glfwSetWindowShouldClose
These functions for working with OpenGL and OpenGL ES contexts may be called
from any thread, but the window object is not synchronized by GLFW.
- @ref glfwMakeContextCurrent
- @ref glfwGetCurrentContext
- @ref glfwSwapBuffers
- @ref glfwSwapInterval
- @ref glfwExtensionSupported
- @ref glfwGetProcAddress
The raw timer functions may be called from any thread.
- @ref glfwGetTimerFrequency
- @ref glfwGetTimerValue
The regular timer may be used from any thread, but reading and writing the timer
offset is not synchronized by GLFW.
- @ref glfwGetTime
- @ref glfwSetTime
Library version information may be queried from any thread.
- @ref glfwGetVersion
- @ref glfwGetVersionString
Platform information may be queried from any thread.
- @ref glfwPlatformSupported
- @ref glfwGetPlatform
All Vulkan related functions may be called from any thread.
- @ref glfwVulkanSupported
- @ref glfwGetRequiredInstanceExtensions
- @ref glfwGetInstanceProcAddress
- @ref glfwGetPhysicalDevicePresentationSupport
- @ref glfwCreateWindowSurface
GLFW uses synchronization objects internally only to manage the per-thread
context and error states. Additional synchronization is left to the
application.
Functions that may currently be called from any thread will always remain so,
but functions that are currently limited to the main thread may be updated to
allow calls from any thread in future releases.
### Version compatibility {#compatibility}
GLFW uses [Semantic Versioning](https://semver.org/). This guarantees source
and binary backward compatibility with earlier minor versions of the API. This
means that you can drop in a newer version of the library and existing programs
will continue to compile and existing binaries will continue to run.
Once a function or constant has been added, the signature of that function or
value of that constant will remain unchanged until the next major version of
GLFW. No compatibility of any kind is guaranteed between major versions.
Undocumented behavior, i.e. behavior that is not described in the documentation,
may change at any time until it is documented.
If the reference documentation and the implementation differ, the reference
documentation will almost always take precedence and the implementation will be
fixed in the next release. The reference documentation will also take
precedence over anything stated in a guide.
### Event order {#event_order}
The order of arrival of related events is not guaranteed to be consistent
across platforms. The exception is synthetic key and mouse button release
events, which are always delivered after the window defocus event.
## Version management {#intro_version}
GLFW provides mechanisms for identifying what version of GLFW your application
was compiled against as well as what version it is currently running against.
If you are loading GLFW dynamically (not just linking dynamically), you can use
this to verify that the library binary is compatible with your application.
### Compile-time version {#intro_version_compile}
The compile-time version of GLFW is provided by the GLFW header with the
`GLFW_VERSION_MAJOR`, `GLFW_VERSION_MINOR` and `GLFW_VERSION_REVISION` macros.
```c
printf("Compiled against GLFW %i.%i.%i\n",
GLFW_VERSION_MAJOR,
GLFW_VERSION_MINOR,
GLFW_VERSION_REVISION);
```
### Run-time version {#intro_version_runtime}
The run-time version can be retrieved with @ref glfwGetVersion, a function that
may be called regardless of whether GLFW is initialized.
```c
int major, minor, revision;
glfwGetVersion(&major, &minor, &revision);
printf("Running against GLFW %i.%i.%i\n", major, minor, revision);
```
### Version string {#intro_version_string}
GLFW 3 also provides a compile-time generated version string that describes the
version, platform, compiler and any platform-specific compile-time options.
This is primarily intended for submitting bug reports, to allow developers to
see which code paths are enabled in a binary.
The version string is returned by @ref glfwGetVersionString, a function that may
be called regardless of whether GLFW is initialized.
__Do not use the version string__ to parse the GLFW library version. The @ref
glfwGetVersion function already provides the version of the running library
binary.
__Do not use the version string__ to parse what platforms are supported. The @ref
glfwPlatformSupported function lets you query platform support.
__GLFW 3.4:__ The format of this string was changed to support the addition of
[runtime platform selection](@ref platform).
The format of the string is as follows:
- The version of GLFW
- For each supported platform:
- The name of the window system API
- The name of the window system specific context creation API, if applicable
- The names of the always supported context creation APIs EGL and OSMesa
- Any additional compile-time options, APIs and (on Windows) what compiler was used
For example, compiling GLFW 3.5 with MinGW as a DLL for Windows, may result in a version string
like this:
```c
3.5.0 Win32 WGL Null EGL OSMesa MinGW DLL
```
Compiling GLFW as a static library for Linux, with both Wayland and X11 enabled, may
result in a version string like this:
```c
3.5.0 Wayland X11 GLX Null EGL OSMesa monotonic
```

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# Introduction {#mainpage}
GLFW is a free, Open Source, multi-platform library for OpenGL, OpenGL ES and
Vulkan application development. It provides a simple, platform-independent API
for creating windows, contexts and surfaces, reading input, handling events, etc.
@ref news list new features, caveats and deprecations.
@ref quick_guide is a guide for users new to GLFW. It takes you through how to
write a small but complete program.
There are guides for each section of the API:
- @ref intro_guide – initialization, error handling and high-level design
- @ref window_guide – creating and working with windows and framebuffers
- @ref context_guide – working with OpenGL and OpenGL ES contexts
- @ref vulkan_guide - working with Vulkan objects and extensions
- @ref monitor_guide – enumerating and working with monitors and video modes
- @ref input_guide – receiving events, polling and processing input
Once you have written a program, see @ref compile_guide and @ref build_guide.
The [reference documentation](modules.html) provides more detailed information
about specific functions.
@ref moving_guide explains what has changed and how to update existing code to
use the new API.
There is a section on @ref guarantees_limitations for pointer lifetimes,
reentrancy, thread safety, event order and backward and forward compatibility.
Finally, @ref compat_guide explains what APIs, standards and protocols GLFW uses
and what happens when they are not present on a given machine.
This documentation was generated with Doxygen. The sources for it are available
in both the [source distribution](https://www.glfw.org/download.html) and
[GitHub repository](https://github.com/glfw/glfw).

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# Monitor guide {#monitor_guide}
[TOC]
This guide introduces the monitor related functions of GLFW. For details on
a specific function in this category, see the @ref monitor. There are also
guides for the other areas of GLFW.
- @ref intro_guide
- @ref window_guide
- @ref context_guide
- @ref vulkan_guide
- @ref input_guide
## Monitor objects {#monitor_object}
A monitor object represents a currently connected monitor and is represented as
a pointer to the [opaque](https://en.wikipedia.org/wiki/Opaque_data_type) type
@ref GLFWmonitor. Monitor objects cannot be created or destroyed by the
application and retain their addresses until the monitors they represent are
disconnected or until the library is [terminated](@ref intro_init_terminate).
Each monitor has a current video mode, a list of supported video modes,
a virtual position, a human-readable name, an estimated physical size and
a gamma ramp. One of the monitors is the primary monitor.
The virtual position of a monitor is in
[screen coordinates](@ref coordinate_systems) and, together with the current
video mode, describes the viewports that the connected monitors provide into the
virtual desktop that spans them.
To see how GLFW views your monitor setup and its available video modes, run the
`monitors` test program.
### Retrieving monitors {#monitor_monitors}
The primary monitor is returned by @ref glfwGetPrimaryMonitor. It is the user's
preferred monitor and is usually the one with global UI elements like task bar
or menu bar.
```c
GLFWmonitor* primary = glfwGetPrimaryMonitor();
```
You can retrieve all currently connected monitors with @ref glfwGetMonitors.
See the reference documentation for the lifetime of the returned array.
```c
int count;
GLFWmonitor** monitors = glfwGetMonitors(&count);
```
The primary monitor is always the first monitor in the returned array, but other
monitors may be moved to a different index when a monitor is connected or
disconnected.
### Monitor configuration changes {#monitor_event}
If you wish to be notified when a monitor is connected or disconnected, set
a monitor callback.
```c
glfwSetMonitorCallback(monitor_callback);
```
The callback function receives the handle for the monitor that has been
connected or disconnected and the event that occurred.
```c
void monitor_callback(GLFWmonitor* monitor, int event)
{
if (event == GLFW_CONNECTED)
{
// The monitor was connected
}
else if (event == GLFW_DISCONNECTED)
{
// The monitor was disconnected
}
}
```
If a monitor is disconnected, all windows that are full screen on it will be
switched to windowed mode before the callback is called. Only @ref
glfwGetMonitorName and @ref glfwGetMonitorUserPointer will return useful values
for a disconnected monitor and only before the monitor callback returns.
## Monitor properties {#monitor_properties}
Each monitor has a current video mode, a list of supported video modes,
a virtual position, a content scale, a human-readable name, a user pointer, an
estimated physical size and a gamma ramp.
### Video modes {#monitor_modes}
GLFW generally does a good job selecting a suitable video mode when you create
a full screen window, change its video mode or make a windowed one full
screen, but it is sometimes useful to know exactly which video modes are
supported.
Video modes are represented as @ref GLFWvidmode structures. You can get an
array of the video modes supported by a monitor with @ref glfwGetVideoModes.
See the reference documentation for the lifetime of the returned array.
```c
int count;
GLFWvidmode* modes = glfwGetVideoModes(monitor, &count);
```
To get the current video mode of a monitor call @ref glfwGetVideoMode. See the
reference documentation for the lifetime of the returned pointer.
```c
const GLFWvidmode* mode = glfwGetVideoMode(monitor);
```
The resolution of a video mode is specified in
[screen coordinates](@ref coordinate_systems), not pixels.
### Physical size {#monitor_size}
The physical size of a monitor in millimetres, or an estimation of it, can be
retrieved with @ref glfwGetMonitorPhysicalSize. This has no relation to its
current _resolution_, i.e. the width and height of its current
[video mode](@ref monitor_modes).
```c
int width_mm, height_mm;
glfwGetMonitorPhysicalSize(monitor, &width_mm, &height_mm);
```
While this can be used to calculate the raw DPI of a monitor, this is often not
useful. Instead, use the [monitor content scale](@ref monitor_scale) and
[window content scale](@ref window_scale) to scale your content.
### Content scale {#monitor_scale}
The content scale for a monitor can be retrieved with @ref
glfwGetMonitorContentScale.
```c
float xscale, yscale;
glfwGetMonitorContentScale(monitor, &xscale, &yscale);
```
For more information on what the content scale is and how to use it, see
[window content scale](@ref window_scale).
### Virtual position {#monitor_pos}
The position of the monitor on the virtual desktop, in
[screen coordinates](@ref coordinate_systems), can be retrieved with @ref
glfwGetMonitorPos.
```c
int xpos, ypos;
glfwGetMonitorPos(monitor, &xpos, &ypos);
```
### Work area {#monitor_workarea}
The area of a monitor not occupied by global task bars or menu bars is the work
area. This is specified in [screen coordinates](@ref coordinate_systems) and
can be retrieved with @ref glfwGetMonitorWorkarea.
```c
int xpos, ypos, width, height;
glfwGetMonitorWorkarea(monitor, &xpos, &ypos, &width, &height);
```
### Human-readable name {#monitor_name}
The human-readable, UTF-8 encoded name of a monitor is returned by @ref
glfwGetMonitorName. See the reference documentation for the lifetime of the
returned string.
```c
const char* name = glfwGetMonitorName(monitor);
```
Monitor names are not guaranteed to be unique. Two monitors of the same model
and make may have the same name. Only the monitor handle is guaranteed to be
unique, and only until that monitor is disconnected.
### User pointer {#monitor_userptr}
Each monitor has a user pointer that can be set with @ref
glfwSetMonitorUserPointer and queried with @ref glfwGetMonitorUserPointer. This
can be used for any purpose you need and will not be modified by GLFW. The
value will be kept until the monitor is disconnected or until the library is
terminated.
The initial value of the pointer is `NULL`.
### Gamma ramp {#monitor_gamma}
The gamma ramp of a monitor can be set with @ref glfwSetGammaRamp, which accepts
a monitor handle and a pointer to a @ref GLFWgammaramp structure.
```c
GLFWgammaramp ramp;
unsigned short red[256], green[256], blue[256];
ramp.size = 256;
ramp.red = red;
ramp.green = green;
ramp.blue = blue;
for (i = 0; i < ramp.size; i++)
{
// Fill out gamma ramp arrays as desired
}
glfwSetGammaRamp(monitor, &ramp);
```
The gamma ramp data is copied before the function returns, so there is no need
to keep it around once the ramp has been set.
It is recommended that your gamma ramp have the same size as the current gamma
ramp for that monitor.
The current gamma ramp for a monitor is returned by @ref glfwGetGammaRamp. See
the reference documentation for the lifetime of the returned structure.
```c
const GLFWgammaramp* ramp = glfwGetGammaRamp(monitor);
```
If you wish to set a regular gamma ramp, you can have GLFW calculate it for you
from the desired exponent with @ref glfwSetGamma, which in turn calls @ref
glfwSetGammaRamp with the resulting ramp.
```c
glfwSetGamma(monitor, 1.0);
```
To experiment with gamma correction via the @ref glfwSetGamma function, run the
`gamma` test program.
@note The software controlled gamma ramp is applied _in addition_ to the
hardware gamma correction, which today is typically an approximation of sRGB
gamma. This means that setting a perfectly linear ramp, or gamma 1.0, will
produce the default (usually sRGB-like) behavior.

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# Moving from GLFW 2 to 3 {#moving_guide}
[TOC]
This is a transition guide for moving from GLFW 2 to 3. It describes what has
changed or been removed, but does _not_ include
[new features](@ref news) unless they are required when moving an existing code
base onto the new API. For example, the new multi-monitor functions are
required to create full screen windows with GLFW 3.
## Changed and removed features {#moving_removed}
### Renamed library and header file {#moving_renamed_files}
The GLFW 3 header is named @ref glfw3.h and moved to the `GLFW` directory, to
avoid collisions with the headers of other major versions. Similarly, the GLFW
3 library is named `glfw3,` except when it's installed as a shared library on
Unix-like systems, where it uses the [soname][] `libglfw.so.3`.
[soname]: https://en.wikipedia.org/wiki/soname
__Old syntax__
```c
#include <GL/glfw.h>
```
__New syntax__
```c
#include <GLFW/glfw3.h>
```
### Removal of threading functions {#moving_threads}
The threading functions have been removed, including the per-thread sleep
function. They were fairly primitive, under-used, poorly integrated and took
time away from the focus of GLFW (i.e. context, input and window). There are
better threading libraries available and native threading support is available
in both [C++11][] and [C11][], both of which are gaining traction.
[C++11]: https://en.cppreference.com/w/cpp/thread
[C11]: https://en.cppreference.com/w/c/thread
If you wish to use the C++11 or C11 facilities but your compiler doesn't yet
support them, see the [TinyThread++][] and [TinyCThread][] projects created by
the original author of GLFW. These libraries implement a usable subset of the
threading APIs in C++11 and C11, and in fact some GLFW 3 test programs use
TinyCThread.
[TinyThread++]: https://gitorious.org/tinythread/tinythreadpp
[TinyCThread]: https://github.com/tinycthread/tinycthread
However, GLFW 3 has better support for _use from multiple threads_ than GLFW
2 had. Contexts can be made current on any thread, although only a single
thread at a time, and the documentation explicitly states which functions may be
used from any thread and which must only be used from the main thread.
__Removed functions__
> `glfwSleep`, `glfwCreateThread`, `glfwDestroyThread`, `glfwWaitThread`,
> `glfwGetThreadID`, `glfwCreateMutex`, `glfwDestroyMutex`, `glfwLockMutex`,
> `glfwUnlockMutex`, `glfwCreateCond`, `glfwDestroyCond`, `glfwWaitCond`,
> `glfwSignalCond`, `glfwBroadcastCond` and `glfwGetNumberOfProcessors`.
__Removed types__
> `GLFWthreadfun`
### Removal of image and texture loading {#moving_image}
The image and texture loading functions have been removed. They only supported
the Targa image format, making them mostly useful for beginner level examples.
To become of sufficiently high quality to warrant keeping them in GLFW 3, they
would need not only to support other formats, but also modern extensions to
OpenGL texturing. This would either add a number of external
dependencies (libjpeg, libpng, etc.), or force GLFW to ship with inline versions
of these libraries.
As there already are libraries doing this, it is unnecessary both to duplicate
the work and to tie the duplicate to GLFW. The resulting library would also be
platform-independent, as both OpenGL and stdio are available wherever GLFW is.
__Removed functions__
> `glfwReadImage`, `glfwReadMemoryImage`, `glfwFreeImage`, `glfwLoadTexture2D`,
> `glfwLoadMemoryTexture2D` and `glfwLoadTextureImage2D`.
### Removal of GLFWCALL macro {#moving_stdcall}
The `GLFWCALL` macro, which made callback functions use [\_\_stdcall][stdcall]
on Windows, has been removed. GLFW is written in C, not Pascal. Removing this
macro means there's one less thing for application programmers to remember, i.e.
the requirement to mark all callback functions with `GLFWCALL`. It also
simplifies the creation of DLLs and DLL link libraries, as there's no need to
explicitly disable `@n` entry point suffixes.
[stdcall]: https://msdn.microsoft.com/en-us/library/zxk0tw93.aspx
__Old syntax__
```c
void GLFWCALL callback_function(...);
```
__New syntax__
```c
void callback_function(...);
```
### Window handle parameters {#moving_window_handles}
Because GLFW 3 supports multiple windows, window handle parameters have been
added to all window-related GLFW functions and callbacks. The handle of
a newly created window is returned by @ref glfwCreateWindow (formerly
`glfwOpenWindow`). Window handles are pointers to the
[opaque][opaque-type] type @ref GLFWwindow.
[opaque-type]: https://en.wikipedia.org/wiki/Opaque_data_type
__Old syntax__
```c
glfwSetWindowTitle("New Window Title");
```
__New syntax__
```c
glfwSetWindowTitle(window, "New Window Title");
```
### Explicit monitor selection {#moving_monitor}
GLFW 3 provides support for multiple monitors. To request a full screen mode window,
instead of passing `GLFW_FULLSCREEN` you specify which monitor you wish the
window to use. The @ref glfwGetPrimaryMonitor function returns the monitor that
GLFW 2 would have selected, but there are many other
[monitor functions](@ref monitor_guide). Monitor handles are pointers to the
[opaque][opaque-type] type @ref GLFWmonitor.
__Old basic full screen__
```c
glfwOpenWindow(640, 480, 8, 8, 8, 0, 24, 0, GLFW_FULLSCREEN);
```
__New basic full screen__
```c
window = glfwCreateWindow(640, 480, "My Window", glfwGetPrimaryMonitor(), NULL);
```
@note The framebuffer bit depth parameters of `glfwOpenWindow` have been turned
into [window hints](@ref window_hints), but as they have been given
[sane defaults](@ref window_hints_values) you rarely need to set these hints.
### Removal of automatic event polling {#moving_autopoll}
GLFW 3 does not automatically poll for events in @ref glfwSwapBuffers, meaning
you need to call @ref glfwPollEvents or @ref glfwWaitEvents yourself. Unlike
buffer swap, which acts on a single window, the event processing functions act
on all windows at once.
__Old basic main loop__
```c
while (...)
{
// Process input
// Render output
glfwSwapBuffers();
}
```
__New basic main loop__
```c
while (...)
{
// Process input
// Render output
glfwSwapBuffers(window);
glfwPollEvents();
}
```
### Explicit context management {#moving_context}
Each GLFW 3 window has its own OpenGL context and only you, the application
programmer, can know which context should be current on which thread at any
given time. Therefore, GLFW 3 leaves that decision to you.
This means that you need to call @ref glfwMakeContextCurrent after creating
a window before you can call any OpenGL functions.
### Separation of window and framebuffer sizes {#moving_hidpi}
Window positions and sizes now use screen coordinates, which may not be the same
as pixels on machines with high-DPI monitors. This is important as OpenGL uses
pixels, not screen coordinates. For example, the rectangle specified with
`glViewport` needs to use pixels. Therefore, framebuffer size functions have
been added. You can retrieve the size of the framebuffer of a window with @ref
glfwGetFramebufferSize function. A framebuffer size callback has also been
added, which can be set with @ref glfwSetFramebufferSizeCallback.
__Old basic viewport setup__
```c
glfwGetWindowSize(&width, &height);
glViewport(0, 0, width, height);
```
__New basic viewport setup__
```c
glfwGetFramebufferSize(window, &width, &height);
glViewport(0, 0, width, height);
```
### Window closing changes {#moving_window_close}
The `GLFW_OPENED` window parameter has been removed. As long as the window has
not been destroyed, whether through @ref glfwDestroyWindow or @ref
glfwTerminate, the window is "open".
A user attempting to close a window is now just an event like any other. Unlike
GLFW 2, windows and contexts created with GLFW 3 will never be destroyed unless
you choose them to be. Each window now has a close flag that is set to
`GLFW_TRUE` when the user attempts to close that window. By default, nothing else
happens and the window stays visible. It is then up to you to either destroy
the window, take some other action or ignore the request.
You can query the close flag at any time with @ref glfwWindowShouldClose and set
it at any time with @ref glfwSetWindowShouldClose.
__Old basic main loop__
```c
while (glfwGetWindowParam(GLFW_OPENED))
{
...
}
```
__New basic main loop__
```c
while (!glfwWindowShouldClose(window))
{
...
}
```
The close callback no longer returns a value. Instead, it is called after the
close flag has been set, so it can optionally override its value, before
event processing completes. You may however not call @ref glfwDestroyWindow
from the close callback (or any other window related callback).
__Old syntax__
```c
int GLFWCALL window_close_callback(void);
```
__New syntax__
```c
void window_close_callback(GLFWwindow* window);
```
@note GLFW never clears the close flag to `GLFW_FALSE`, meaning you can use it
for other reasons to close the window as well, for example the user choosing
Quit from an in-game menu.
### Persistent window hints {#moving_hints}
The `glfwOpenWindowHint` function has been renamed to @ref glfwWindowHint.
Window hints are no longer reset to their default values on window creation, but
instead retain their values until modified by @ref glfwWindowHint or @ref
glfwDefaultWindowHints, or until the library is terminated and re-initialized.
### Video mode enumeration {#moving_video_modes}
Video mode enumeration is now per-monitor. The @ref glfwGetVideoModes function
now returns all available modes for a specific monitor instead of requiring you
to guess how large an array you need. The `glfwGetDesktopMode` function, which
had poorly defined behavior, has been replaced by @ref glfwGetVideoMode, which
returns the current mode of a monitor.
### Removal of character actions {#moving_char_up}
The action parameter of the [character callback](@ref GLFWcharfun) has been
removed. This was an artefact of the origin of GLFW, i.e. being developed in
English by a Swede. However, many keyboard layouts require more than one key to
produce characters with diacritical marks. Even the Swedish keyboard layout
requires this for uncommon cases like ü.
__Old syntax__
```c
void GLFWCALL character_callback(int character, int action);
```
__New syntax__
```c
void character_callback(GLFWwindow* window, int character);
```
### Cursor position changes {#moving_cursorpos}
The `glfwGetMousePos` function has been renamed to @ref glfwGetCursorPos,
`glfwSetMousePos` to @ref glfwSetCursorPos and `glfwSetMousePosCallback` to @ref
glfwSetCursorPosCallback.
The cursor position is now `double` instead of `int`, both for the direct
functions and for the callback. Some platforms can provide sub-pixel cursor
movement and this data is now passed on to the application where available. On
platforms where this is not provided, the decimal part is zero.
GLFW 3 only allows you to position the cursor within a window using @ref
glfwSetCursorPos (formerly `glfwSetMousePos`) when that window is active.
Unless the window is active, the function fails silently.
### Wheel position replaced by scroll offsets {#moving_wheel}
The `glfwGetMouseWheel` function has been removed. Scrolling is the input of
offsets and has no absolute position. The mouse wheel callback has been
replaced by a [scroll callback](@ref GLFWscrollfun) that receives
two-dimensional floating point scroll offsets. This allows you to receive
precise scroll data from for example modern touchpads.
__Old syntax__
```c
void GLFWCALL mouse_wheel_callback(int position);
```
__New syntax__
```c
void scroll_callback(GLFWwindow* window, double xoffset, double yoffset);
```
__Removed functions__
> `glfwGetMouseWheel`
### Key repeat action {#moving_repeat}
The `GLFW_KEY_REPEAT` enable has been removed and key repeat is always enabled
for both keys and characters. A new key action, `GLFW_REPEAT`, has been added
to allow the [key callback](@ref GLFWkeyfun) to distinguish an initial key press
from a repeat. Note that @ref glfwGetKey still returns only `GLFW_PRESS` or
`GLFW_RELEASE`.
### Physical key input {#moving_keys}
GLFW 3 key tokens map to physical keys, unlike in GLFW 2 where they mapped to
the values generated by the current keyboard layout. The tokens are named
according to the values they would have in the standard US layout, but this
is only a convenience, as most programmers are assumed to know that layout.
This means that (for example) `GLFW_KEY_LEFT_BRACKET` is always a single key and
is the same key in the same place regardless of what keyboard layouts the users
of your program have.
The key input facility was never meant for text input, although using it that
way worked slightly better in GLFW 2. If you were using it to input text, you
should be using the character callback instead, on both GLFW 2 and 3. This will
give you the characters being input, as opposed to the keys being pressed.
GLFW 3 has key tokens for all keys on a standard 105 key keyboard, so instead of
having to remember whether to check for `a` or `A`, you now check for
@ref GLFW_KEY_A.
### Joystick function changes {#moving_joystick}
The `glfwGetJoystickPos` function has been renamed to @ref glfwGetJoystickAxes.
The `glfwGetJoystickParam` function and the `GLFW_PRESENT`, `GLFW_AXES` and
`GLFW_BUTTONS` tokens have been replaced by the @ref glfwJoystickPresent
function as well as axis and button counts returned by the @ref
glfwGetJoystickAxes and @ref glfwGetJoystickButtons functions.
### Win32 MBCS support {#moving_mbcs}
The Win32 port of GLFW 3 will not compile in [MBCS mode][MBCS]. However,
because the use of the Unicode version of the Win32 API doesn't affect the
process as a whole, but only those windows created using it, it's perfectly
possible to call MBCS functions from other parts of the same application.
Therefore, even if an application using GLFW has MBCS mode code, there's no need
for GLFW itself to support it.
[MBCS]: https://msdn.microsoft.com/en-us/library/5z097dxa.aspx
### Support for versions of Windows older than XP {#moving_windows}
All explicit support for version of Windows older than XP has been removed.
There is no code that actively prevents GLFW 3 from running on these earlier
versions, but it uses Win32 functions that those versions lack.
Windows XP was released in 2001, and by now (January 2015) it has not only
replaced almost all earlier versions of Windows, but is itself rapidly being
replaced by Windows 7 and 8. The MSDN library doesn't even provide
documentation for version older than Windows 2000, making it difficult to
maintain compatibility with these versions even if it was deemed worth the
effort.
The Win32 API has also not stood still, and GLFW 3 uses many functions only
present on Windows XP or later. Even supporting an OS as new as XP (new
from the perspective of GLFW 2, which still supports Windows 95) requires
runtime checking for a number of functions that are present only on modern
version of Windows.
### Capture of system-wide hotkeys {#moving_syskeys}
The ability to disable and capture system-wide hotkeys like Alt+Tab has been
removed. Modern applications, whether they're games, scientific visualisations
or something else, are nowadays expected to be good desktop citizens and allow
these hotkeys to function even when running in full screen mode.
### Automatic termination {#moving_terminate}
GLFW 3 does not register @ref glfwTerminate with `atexit` at initialization,
because `exit` calls registered functions from the calling thread and while it
is permitted to call `exit` from any thread, @ref glfwTerminate must only be
called from the main thread.
To release all resources allocated by GLFW, you should call @ref glfwTerminate
yourself, from the main thread, before the program terminates. Note that this
destroys all windows not already destroyed with @ref glfwDestroyWindow,
invalidating any window handles you may still have.
### GLU header inclusion {#moving_glu}
GLFW 3 does not by default include the GLU header and GLU itself has been
deprecated by [Khronos][]. __New projects should not use GLU__, but if you need
it for legacy code that has been moved to GLFW 3, you can request that the GLFW
header includes it by defining @ref GLFW_INCLUDE_GLU before the inclusion of the
GLFW header.
[Khronos]: https://en.wikipedia.org/wiki/Khronos_Group
__Old syntax__
```c
#include <GL/glfw.h>
```
__New syntax__
```c
#define GLFW_INCLUDE_GLU
#include <GLFW/glfw3.h>
```
There are many libraries that offer replacements for the functionality offered
by GLU. For the matrix helper functions, see math libraries like [GLM][] (for
C++), [linmath.h][] (for C) and others. For the tessellation functions, see for
example [libtess2][].
[GLM]: https://github.com/g-truc/glm
[linmath.h]: https://github.com/datenwolf/linmath.h
[libtess2]: https://github.com/memononen/libtess2
## Name change tables {#moving_tables}
### Renamed functions {#moving_renamed_functions}
| GLFW 2 | GLFW 3 | Notes |
| --------------------------- | ----------------------------- | ----- |
| `glfwOpenWindow` | @ref glfwCreateWindow | All channel bit depths are now hints
| `glfwCloseWindow` | @ref glfwDestroyWindow | |
| `glfwOpenWindowHint` | @ref glfwWindowHint | Now accepts all `GLFW_*_BITS` tokens |
| `glfwEnable` | @ref glfwSetInputMode | |
| `glfwDisable` | @ref glfwSetInputMode | |
| `glfwGetMousePos` | @ref glfwGetCursorPos | |
| `glfwSetMousePos` | @ref glfwSetCursorPos | |
| `glfwSetMousePosCallback` | @ref glfwSetCursorPosCallback | |
| `glfwSetMouseWheelCallback` | @ref glfwSetScrollCallback | Accepts two-dimensional scroll offsets as doubles |
| `glfwGetJoystickPos` | @ref glfwGetJoystickAxes | |
| `glfwGetWindowParam` | @ref glfwGetWindowAttrib | |
| `glfwGetGLVersion` | @ref glfwGetWindowAttrib | Use `GLFW_CONTEXT_VERSION_MAJOR`, `GLFW_CONTEXT_VERSION_MINOR` and `GLFW_CONTEXT_REVISION` |
| `glfwGetDesktopMode` | @ref glfwGetVideoMode | Returns the current mode of a monitor |
| `glfwGetJoystickParam` | @ref glfwJoystickPresent | The axis and button counts are provided by @ref glfwGetJoystickAxes and @ref glfwGetJoystickButtons |
### Renamed types {#moving_renamed_types}
| GLFW 2 | GLFW 3 | Notes |
| ------------------- | --------------------- | |
| `GLFWmousewheelfun` | @ref GLFWscrollfun | |
| `GLFWmouseposfun` | @ref GLFWcursorposfun | |
### Renamed tokens {#moving_renamed_tokens}
| GLFW 2 | GLFW 3 | Notes |
| --------------------------- | ---------------------------- | ----- |
| `GLFW_OPENGL_VERSION_MAJOR` | `GLFW_CONTEXT_VERSION_MAJOR` | Renamed as it applies to OpenGL ES as well |
| `GLFW_OPENGL_VERSION_MINOR` | `GLFW_CONTEXT_VERSION_MINOR` | Renamed as it applies to OpenGL ES as well |
| `GLFW_FSAA_SAMPLES` | `GLFW_SAMPLES` | Renamed to match the OpenGL API |
| `GLFW_ACTIVE` | `GLFW_FOCUSED` | Renamed to match the window focus callback |
| `GLFW_WINDOW_NO_RESIZE` | `GLFW_RESIZABLE` | The default has been inverted |
| `GLFW_MOUSE_CURSOR` | `GLFW_CURSOR` | Used with @ref glfwSetInputMode |
| `GLFW_KEY_ESC` | `GLFW_KEY_ESCAPE` | |
| `GLFW_KEY_DEL` | `GLFW_KEY_DELETE` | |
| `GLFW_KEY_PAGEUP` | `GLFW_KEY_PAGE_UP` | |
| `GLFW_KEY_PAGEDOWN` | `GLFW_KEY_PAGE_DOWN` | |
| `GLFW_KEY_KP_NUM_LOCK` | `GLFW_KEY_NUM_LOCK` | |
| `GLFW_KEY_LCTRL` | `GLFW_KEY_LEFT_CONTROL` | |
| `GLFW_KEY_LSHIFT` | `GLFW_KEY_LEFT_SHIFT` | |
| `GLFW_KEY_LALT` | `GLFW_KEY_LEFT_ALT` | |
| `GLFW_KEY_LSUPER` | `GLFW_KEY_LEFT_SUPER` | |
| `GLFW_KEY_RCTRL` | `GLFW_KEY_RIGHT_CONTROL` | |
| `GLFW_KEY_RSHIFT` | `GLFW_KEY_RIGHT_SHIFT` | |
| `GLFW_KEY_RALT` | `GLFW_KEY_RIGHT_ALT` | |
| `GLFW_KEY_RSUPER` | `GLFW_KEY_RIGHT_SUPER` | |

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# Release notes for version 3.5 {#news}
[TOC]
## New features {#features}
### Unlimited mouse buttons {#unlimited_mouse_buttons}
GLFW now has an input mode which allows an unlimited number of mouse buttons to
be reported by the mouse buttton callback, rather than just the associated
[mouse button tokens](@ref buttons). This allows using mouse buttons with
values over 8. For compatibility with older versions, the
@ref GLFW_UNLIMITED_MOUSE_BUTTONS input mode needs to be set to make use of
this.
## Caveats {#caveats}
## Deprecations {#deprecations}
## Removals {#removals}
## New symbols {#new_symbols}
### New functions {#new_functions}
### New types {#new_types}
### New constants {#new_constants}
- @ref GLFW_UNLIMITED_MOUSE_BUTTONS
## Release notes for earlier versions {#news_archive}
- [Release notes for 3.4](https://www.glfw.org/docs/3.4/news.html)
- [Release notes for 3.3](https://www.glfw.org/docs/3.3/news.html)
- [Release notes for 3.2](https://www.glfw.org/docs/3.2/news.html)
- [Release notes for 3.1](https://www.glfw.org/docs/3.1/news.html)
- [Release notes for 3.0](https://www.glfw.org/docs/3.0/news.html)

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# Getting started {#quick_guide}
[TOC]
This guide takes you through writing a small application using GLFW 3. The
application will create a window and OpenGL context, render a rotating triangle
and exit when the user closes the window or presses _Escape_. This guide will
introduce a few of the most commonly used functions, but there are many more.
This guide assumes no experience with earlier versions of GLFW. If you
have used GLFW 2 in the past, read @ref moving_guide, as some functions
behave differently in GLFW 3.
## Step by step {#quick_steps}
### Including the GLFW header {#quick_include}
In the source files of your application where you use GLFW, you need to include
its header file.
```c
#include <GLFW/glfw3.h>
```
This header provides all the constants, types and function prototypes of the
GLFW API.
By default it also includes the OpenGL header from your development environment.
On some platforms this header only supports older versions of OpenGL. The most
extreme case is Windows, where it typically only supports OpenGL 1.2.
Most programs will instead use an
[extension loader library](@ref context_glext_auto) and include its header.
This example uses files generated by [glad](https://gen.glad.sh/). The GLFW
header can detect most such headers if they are included first and will then not
include the one from your development environment.
```c
#include <glad/gl.h>
#include <GLFW/glfw3.h>
```
To make sure there will be no header conflicts, you can define @ref
GLFW_INCLUDE_NONE before the GLFW header to explicitly disable inclusion of the
development environment header. This also allows the two headers to be included
in any order.
```c
#define GLFW_INCLUDE_NONE
#include <GLFW/glfw3.h>
#include <glad/gl.h>
```
### Initializing and terminating GLFW {#quick_init_term}
Before you can use most GLFW functions, the library must be initialized. On
successful initialization, `GLFW_TRUE` is returned. If an error occurred,
`GLFW_FALSE` is returned.
```c
if (!glfwInit())
{
// Initialization failed
}
```
Note that `GLFW_TRUE` and `GLFW_FALSE` are and will always be one and zero.
When you are done using GLFW, typically just before the application exits, you
need to terminate GLFW.
```c
glfwTerminate();
```
This destroys any remaining windows and releases any other resources allocated by
GLFW. After this call, you must initialize GLFW again before using any GLFW
functions that require it.
### Setting an error callback {#quick_capture_error}
Most events are reported through callbacks, whether it's a key being pressed,
a GLFW window being moved, or an error occurring. Callbacks are C functions (or
C++ static methods) that are called by GLFW with arguments describing the event.
In case a GLFW function fails, an error is reported to the GLFW error callback.
You can receive these reports with an error callback. This function must have
the signature below but may do anything permitted in other callbacks.
```c
void error_callback(int error, const char* description)
{
fprintf(stderr, "Error: %s\n", description);
}
```
Callback functions must be set, so GLFW knows to call them. The function to set
the error callback is one of the few GLFW functions that may be called before
initialization, which lets you be notified of errors both during and after
initialization.
```c
glfwSetErrorCallback(error_callback);
```
### Creating a window and context {#quick_create_window}
The window and its OpenGL context are created with a single call to @ref
glfwCreateWindow, which returns a handle to the created combined window and
context object
```c
GLFWwindow* window = glfwCreateWindow(640, 480, "My Title", NULL, NULL);
if (!window)
{
// Window or OpenGL context creation failed
}
```
This creates a 640 by 480 windowed mode window with an OpenGL context. If
window or OpenGL context creation fails, `NULL` will be returned. You should
always check the return value. While window creation rarely fails, context
creation depends on properly installed drivers and may fail even on machines
with the necessary hardware.
By default, the OpenGL context GLFW creates may have any version. You can
require a minimum OpenGL version by setting the `GLFW_CONTEXT_VERSION_MAJOR` and
`GLFW_CONTEXT_VERSION_MINOR` hints _before_ creation. If the required minimum
version is not supported on the machine, context (and window) creation fails.
You can select the OpenGL profile by setting the `GLFW_OPENGL_PROFILE` hint.
This program uses the core profile as that is the only profile macOS supports
for OpenGL 3.x and 4.x.
```c
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
GLFWwindow* window = glfwCreateWindow(640, 480, "My Title", NULL, NULL);
if (!window)
{
// Window or context creation failed
}
```
When a window and context is no longer needed, destroy it.
```c
glfwDestroyWindow(window);
```
Once this function is called, no more events will be delivered for that window
and its handle becomes invalid.
### Making the OpenGL context current {#quick_context_current}
Before you can use the OpenGL API, you must have a current OpenGL context.
```c
glfwMakeContextCurrent(window);
```
The context will remain current until you make another context current or until
the window owning the current context is destroyed.
If you are using an [extension loader library](@ref context_glext_auto) to
access modern OpenGL then this is when to initialize it, as the loader needs
a current context to load from. This example uses
[glad](https://github.com/Dav1dde/glad), but the same rule applies to all such
libraries.
```c
gladLoadGL(glfwGetProcAddress);
```
### Checking the window close flag {#quick_window_close}
Each window has a flag indicating whether the window should be closed.
When the user attempts to close the window, either by pressing the close widget
in the title bar or using a key combination like Alt+F4, this flag is set to 1.
Note that __the window isn't actually closed__, so you are expected to monitor
this flag and either destroy the window or give some kind of feedback to the
user.
```c
while (!glfwWindowShouldClose(window))
{
// Keep running
}
```
You can be notified when the user is attempting to close the window by setting
a close callback with @ref glfwSetWindowCloseCallback. The callback will be
called immediately after the close flag has been set.
You can also set it yourself with @ref glfwSetWindowShouldClose. This can be
useful if you want to interpret other kinds of input as closing the window, like
for example pressing the _Escape_ key.
### Receiving input events {#quick_key_input}
Each window has a large number of callbacks that can be set to receive all the
various kinds of events. To receive key press and release events, create a key
callback function.
```c
static void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods)
{
if (key == GLFW_KEY_ESCAPE && action == GLFW_PRESS)
glfwSetWindowShouldClose(window, GLFW_TRUE);
}
```
The key callback, like other window related callbacks, are set per-window.
```c
glfwSetKeyCallback(window, key_callback);
```
In order for event callbacks to be called when events occur, you need to process
events as described below.
### Rendering with OpenGL {#quick_render}
Once you have a current OpenGL context, you can use OpenGL normally. In this
tutorial, a multicolored rotating triangle will be rendered. The framebuffer
size needs to be retrieved for `glViewport`.
```c
int width, height;
glfwGetFramebufferSize(window, &width, &height);
glViewport(0, 0, width, height);
```
You can also set a framebuffer size callback using @ref
glfwSetFramebufferSizeCallback and be notified when the size changes.
The details of how to render with OpenGL is outside the scope of this tutorial,
but there are many excellent resources for learning modern OpenGL. Here are
a few of them:
- [Anton's OpenGL 4 Tutorials](https://antongerdelan.net/opengl/)
- [Learn OpenGL](https://learnopengl.com/)
- [Open.GL](https://open.gl/)
These all happen to use GLFW, but OpenGL itself works the same whatever API you
use to create the window and context.
### Reading the timer {#quick_timer}
To create smooth animation, a time source is needed. GLFW provides a timer that
returns the number of seconds since initialization. The time source used is the
most accurate on each platform and generally has micro- or nanosecond
resolution.
```c
double time = glfwGetTime();
```
### Swapping buffers {#quick_swap_buffers}
GLFW windows by default use double buffering. That means that each window has
two rendering buffers; a front buffer and a back buffer. The front buffer is
the one being displayed and the back buffer the one you render to.
When the entire frame has been rendered, the buffers need to be swapped with one
another, so the back buffer becomes the front buffer and vice versa.
```c
glfwSwapBuffers(window);
```
The swap interval indicates how many frames to wait until swapping the buffers,
commonly known as _vsync_. By default, the swap interval is zero, meaning
buffer swapping will occur immediately. On fast machines, many of those frames
will never be seen, as the screen is still only updated typically 60-75 times
per second, so this wastes a lot of CPU and GPU cycles.
Also, because the buffers will be swapped in the middle the screen update,
leading to [screen tearing](https://en.wikipedia.org/wiki/Screen_tearing).
For these reasons, applications will typically want to set the swap interval to
one. It can be set to higher values, but this is usually not recommended,
because of the input latency it leads to.
```c
glfwSwapInterval(1);
```
This function acts on the current context and will fail unless a context is
current.
### Processing events {#quick_process_events}
GLFW needs to communicate regularly with the window system both in order to
receive events and to show that the application hasn't locked up. Event
processing must be done regularly while you have visible windows and is normally
done each frame after buffer swapping.
There are two methods for processing pending events; polling and waiting. This
example will use event polling, which processes only those events that have
already been received and then returns immediately.
```c
glfwPollEvents();
```
This is the best choice when rendering continually, like most games do. If
instead you only need to update your rendering once you have received new input,
@ref glfwWaitEvents is a better choice. It waits until at least one event has
been received, putting the thread to sleep in the meantime, and then processes
all received events. This saves a great deal of CPU cycles and is useful for,
for example, many kinds of editing tools.
## Putting it together {#quick_example}
Now that you know how to initialize GLFW, create a window and poll for
keyboard input, it's possible to create a small program.
This program creates a 640 by 480 windowed mode window and starts a loop that
clears the screen, renders a triangle and processes events until the user either
presses _Escape_ or closes the window.
@snippet triangle-opengl.c code
The program above can be found in the [source package][download] as
`examples/triangle-opengl.c` and is compiled along with all other examples when
you build GLFW. If you built GLFW from the source package then you already have
this as `triangle-opengl.exe` on Windows, `triangle-opengl` on Linux or
`triangle-opengl.app` on macOS.
[download]: https://www.glfw.org/download.html
This tutorial used only a few of the many functions GLFW provides. There are
guides for each of the areas covered by GLFW. Each guide will introduce all the
functions for that category.
- @ref intro_guide
- @ref window_guide
- @ref context_guide
- @ref monitor_guide
- @ref input_guide
You can access reference documentation for any GLFW function by clicking it and
the reference for each function links to related functions and guide sections.
The tutorial ends here. Once you have written a program that uses GLFW, you
will need to compile and link it. How to do that depends on the development
environment you are using and is best explained by the documentation for that
environment. To learn about the details that are specific to GLFW, see
@ref build_guide.

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# Vulkan guide {#vulkan_guide}
[TOC]
This guide is intended to fill the gaps between the official [Vulkan
resources](https://www.khronos.org/vulkan/) and the rest of the GLFW
documentation and is not a replacement for either. It assumes some familiarity
with Vulkan concepts like loaders, devices, queues and surfaces and leaves it to
the Vulkan documentation to explain the details of Vulkan functions.
To develop for Vulkan you should download the [LunarG Vulkan
SDK](https://vulkan.lunarg.com/) for your platform. Apart from headers and link
libraries, they also provide the validation layers necessary for development.
The [Vulkan Tutorial](https://vulkan-tutorial.com/) has more information on how
to use GLFW and Vulkan. The [Khronos Vulkan
Samples](https://github.com/KhronosGroup/Vulkan-Samples) also use GLFW, although
with a small framework in between.
For details on a specific Vulkan support function, see the @ref vulkan. There
are also guides for the other areas of the GLFW API.
- @ref intro_guide
- @ref window_guide
- @ref context_guide
- @ref monitor_guide
- @ref input_guide
## Finding the Vulkan loader {#vulkan_loader}
GLFW itself does not ever need to be linked against the Vulkan loader.
By default, GLFW will load the Vulkan loader dynamically at runtime via its standard name:
`vulkan-1.dll` on Windows, `libvulkan.so.1` on Linux and other Unix-like systems and
`libvulkan.1.dylib` on macOS.
@macos GLFW will also look up and search the `Frameworks` subdirectory of your
application bundle.
If your code is using a Vulkan loader with a different name or in a non-standard location
you will need to direct GLFW to it. Pass your version of `vkGetInstanceProcAddr` to @ref
glfwInitVulkanLoader before initializing GLFW and it will use that function for all Vulkan
entry point retrieval. This prevents GLFW from dynamically loading the Vulkan loader.
```c
glfwInitVulkanLoader(vkGetInstanceProcAddr);
```
@macos To make your application be redistributable you will need to set up the application
bundle according to the LunarG SDK documentation. This is explained in more detail in the
[SDK documentation for macOS](https://vulkan.lunarg.com/doc/sdk/latest/mac/getting_started.html).
## Including the Vulkan header file {#vulkan_include}
To have GLFW include the Vulkan header, define @ref GLFW_INCLUDE_VULKAN before including
the GLFW header.
```c
#define GLFW_INCLUDE_VULKAN
#include <GLFW/glfw3.h>
```
If you instead want to include the Vulkan header from a custom location or use
your own custom Vulkan header then do this before the GLFW header.
```c
#include <path/to/vulkan.h>
#include <GLFW/glfw3.h>
```
Unless a Vulkan header is included, either by the GLFW header or above it, the following
GLFW functions will not be declared, as depend on Vulkan types.
- @ref glfwInitVulkanLoader
- @ref glfwGetInstanceProcAddress
- @ref glfwGetPhysicalDevicePresentationSupport
- @ref glfwCreateWindowSurface
The `VK_USE_PLATFORM_*_KHR` macros do not need to be defined for the Vulkan part
of GLFW to work. Define them only if you are using these extensions directly.
## Querying for Vulkan support {#vulkan_support}
If you are linking directly against the Vulkan loader then you can skip this
section. The canonical desktop loader library exports all Vulkan core and
Khronos extension functions, allowing them to be called directly.
If you are loading the Vulkan loader dynamically instead of linking directly
against it, you can check for the availability of a loader and ICD with @ref
glfwVulkanSupported.
```c
if (glfwVulkanSupported())
{
// Vulkan is available, at least for compute
}
```
This function returns `GLFW_TRUE` if the Vulkan loader and any minimally
functional ICD was found.
If one or both were not found, calling any other Vulkan related GLFW function
will generate a @ref GLFW_API_UNAVAILABLE error.
### Querying Vulkan function pointers {#vulkan_proc}
To load any Vulkan core or extension function from the found loader, call @ref
glfwGetInstanceProcAddress. To load functions needed for instance creation,
pass `NULL` as the instance.
```c
PFN_vkCreateInstance pfnCreateInstance = (PFN_vkCreateInstance)
glfwGetInstanceProcAddress(NULL, "vkCreateInstance");
```
Once you have created an instance, you can load from it all other Vulkan core
functions and functions from any instance extensions you enabled.
```c
PFN_vkCreateDevice pfnCreateDevice = (PFN_vkCreateDevice)
glfwGetInstanceProcAddress(instance, "vkCreateDevice");
```
This function in turn calls `vkGetInstanceProcAddr`. If that fails, the
function falls back to a platform-specific query of the Vulkan loader (i.e.
`dlsym` or `GetProcAddress`). If that also fails, the function returns `NULL`.
For more information about `vkGetInstanceProcAddr`, see the Vulkan
documentation.
Vulkan also provides `vkGetDeviceProcAddr` for loading device-specific versions
of Vulkan function. This function can be retrieved from an instance with @ref
glfwGetInstanceProcAddress.
```c
PFN_vkGetDeviceProcAddr pfnGetDeviceProcAddr = (PFN_vkGetDeviceProcAddr)
glfwGetInstanceProcAddress(instance, "vkGetDeviceProcAddr");
```
Device-specific functions may execute a little faster, due to not having to
dispatch internally based on the device passed to them. For more information
about `vkGetDeviceProcAddr`, see the Vulkan documentation.
## Querying required Vulkan extensions {#vulkan_ext}
To do anything useful with Vulkan you need to create an instance. If you want
to use Vulkan to render to a window, you must enable the instance extensions
GLFW requires to create Vulkan surfaces.
To query the instance extensions required, call @ref
glfwGetRequiredInstanceExtensions.
```c
uint32_t count;
const char** extensions = glfwGetRequiredInstanceExtensions(&count);
```
These extensions must all be enabled when creating instances that are going to
be passed to @ref glfwGetPhysicalDevicePresentationSupport and @ref
glfwCreateWindowSurface. The set of extensions will vary depending on platform
and may also vary depending on graphics drivers and other factors.
If it fails it will return `NULL` and GLFW will not be able to create Vulkan
window surfaces. You can still use Vulkan for off-screen rendering and compute
work.
If successful the returned array will always include `VK_KHR_surface`, so if
you don't require any additional extensions you can pass this list directly to
the `VkInstanceCreateInfo` struct.
```c
VkInstanceCreateInfo ici;
memset(&ici, 0, sizeof(ici));
ici.enabledExtensionCount = count;
ici.ppEnabledExtensionNames = extensions;
...
```
Additional extensions may be required by future versions of GLFW. You should
check whether any extensions you wish to enable are already in the returned
array, as it is an error to specify an extension more than once in the
`VkInstanceCreateInfo` struct.
@macos MoltenVK is (as of July 2022) not yet a fully conformant implementation
of Vulkan. As of Vulkan SDK 1.3.216.0, this means you must also enable the
`VK_KHR_portability_enumeration` instance extension and set the
`VK_INSTANCE_CREATE_ENUMERATE_PORTABILITY_BIT_KHR` bit in the instance creation
info flags for MoltenVK to show up in the list of physical devices. For more
information, see the Vulkan and MoltenVK documentation.
## Querying for Vulkan presentation support {#vulkan_present}
Not every queue family of every Vulkan device can present images to surfaces.
To check whether a specific queue family of a physical device supports image
presentation without first having to create a window and surface, call @ref
glfwGetPhysicalDevicePresentationSupport.
```c
if (glfwGetPhysicalDevicePresentationSupport(instance, physical_device, queue_family_index))
{
// Queue family supports image presentation
}
```
The `VK_KHR_surface` extension additionally provides the
`vkGetPhysicalDeviceSurfaceSupportKHR` function, which performs the same test on
an existing Vulkan surface.
## Creating the window {#vulkan_window}
Unless you will be using OpenGL or OpenGL ES with the same window as Vulkan,
there is no need to create a context. You can disable context creation with the
[GLFW_CLIENT_API](@ref GLFW_CLIENT_API_hint) hint.
```c
glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API);
GLFWwindow* window = glfwCreateWindow(640, 480, "Window Title", NULL, NULL);
```
See @ref context_less for more information.
## Creating a Vulkan window surface {#vulkan_surface}
You can create a Vulkan surface (as defined by the `VK_KHR_surface` extension)
for a GLFW window with @ref glfwCreateWindowSurface.
```c
VkSurfaceKHR surface;
VkResult err = glfwCreateWindowSurface(instance, window, NULL, &surface);
if (err)
{
// Window surface creation failed
}
```
If an OpenGL or OpenGL ES context was created on the window, the context has
ownership of the presentation on the window and a Vulkan surface cannot be
created.
It is your responsibility to destroy the surface. GLFW does not destroy it for
you. Call `vkDestroySurfaceKHR` function from the same extension to destroy it.

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@ -1,83 +0,0 @@
link_libraries(glfw)
include_directories("${GLFW_SOURCE_DIR}/deps")
if (MATH_LIBRARY)
link_libraries("${MATH_LIBRARY}")
endif()
# Workaround for the MS CRT deprecating parts of the standard library
if (MSVC OR CMAKE_C_SIMULATE_ID STREQUAL "MSVC")
add_definitions(-D_CRT_SECURE_NO_WARNINGS)
endif()
if (WIN32)
set(ICON glfw.rc)
elseif (APPLE)
set(ICON glfw.icns)
endif()
set(GLAD_GL "${GLFW_SOURCE_DIR}/deps/glad/gl.h")
set(GLAD_GLES2 "${GLFW_SOURCE_DIR}/deps/glad/gles2.h")
set(GETOPT "${GLFW_SOURCE_DIR}/deps/getopt.h"
"${GLFW_SOURCE_DIR}/deps/getopt.c")
set(TINYCTHREAD "${GLFW_SOURCE_DIR}/deps/tinycthread.h"
"${GLFW_SOURCE_DIR}/deps/tinycthread.c")
add_executable(boing WIN32 MACOSX_BUNDLE boing.c ${ICON} ${GLAD_GL})
add_executable(gears WIN32 MACOSX_BUNDLE gears.c ${ICON} ${GLAD_GL})
add_executable(heightmap WIN32 MACOSX_BUNDLE heightmap.c ${ICON} ${GLAD_GL})
add_executable(offscreen offscreen.c ${ICON} ${GLAD_GL})
add_executable(particles WIN32 MACOSX_BUNDLE particles.c ${ICON} ${TINYCTHREAD} ${GETOPT} ${GLAD_GL})
add_executable(sharing WIN32 MACOSX_BUNDLE sharing.c ${ICON} ${GLAD_GL})
add_executable(splitview WIN32 MACOSX_BUNDLE splitview.c ${ICON} ${GLAD_GL})
add_executable(triangle-opengl WIN32 MACOSX_BUNDLE triangle-opengl.c ${ICON} ${GLAD_GL})
add_executable(triangle-opengles WIN32 MACOSX_BUNDLE triangle-opengles.c ${ICON} ${GLAD_GLES2})
add_executable(wave WIN32 MACOSX_BUNDLE wave.c ${ICON} ${GLAD_GL})
add_executable(windows WIN32 MACOSX_BUNDLE windows.c ${ICON} ${GLAD_GL})
target_link_libraries(particles Threads::Threads)
if (RT_LIBRARY)
target_link_libraries(particles "${RT_LIBRARY}")
endif()
set(GUI_ONLY_BINARIES boing gears heightmap particles sharing splitview
triangle-opengl triangle-opengles wave windows)
set(CONSOLE_BINARIES offscreen)
set_target_properties(${GUI_ONLY_BINARIES} ${CONSOLE_BINARIES} PROPERTIES
C_STANDARD 99
FOLDER "GLFW3/Examples")
if (MSVC)
# Tell MSVC to use main instead of WinMain
set_target_properties(${GUI_ONLY_BINARIES} PROPERTIES
LINK_FLAGS "/ENTRY:mainCRTStartup")
elseif (CMAKE_C_SIMULATE_ID STREQUAL "MSVC")
# Tell Clang using MS CRT to use main instead of WinMain
set_target_properties(${GUI_ONLY_BINARIES} PROPERTIES
LINK_FLAGS "-Wl,/entry:mainCRTStartup")
endif()
if (APPLE)
set_target_properties(boing PROPERTIES MACOSX_BUNDLE_BUNDLE_NAME "Boing")
set_target_properties(gears PROPERTIES MACOSX_BUNDLE_BUNDLE_NAME "Gears")
set_target_properties(heightmap PROPERTIES MACOSX_BUNDLE_BUNDLE_NAME "Heightmap")
set_target_properties(particles PROPERTIES MACOSX_BUNDLE_BUNDLE_NAME "Particles")
set_target_properties(sharing PROPERTIES MACOSX_BUNDLE_BUNDLE_NAME "Sharing")
set_target_properties(triangle-opengl PROPERTIES MACOSX_BUNDLE_BUNDLE_NAME "OpenGL Triangle")
set_target_properties(triangle-opengles PROPERTIES MACOSX_BUNDLE_BUNDLE_NAME "OpenGL ES Triangle")
set_target_properties(splitview PROPERTIES MACOSX_BUNDLE_BUNDLE_NAME "SplitView")
set_target_properties(wave PROPERTIES MACOSX_BUNDLE_BUNDLE_NAME "Wave")
set_target_properties(windows PROPERTIES MACOSX_BUNDLE_BUNDLE_NAME "Windows")
set_source_files_properties(glfw.icns PROPERTIES
MACOSX_PACKAGE_LOCATION "Resources")
set_target_properties(${GUI_ONLY_BINARIES} PROPERTIES
MACOSX_BUNDLE_SHORT_VERSION_STRING ${GLFW_VERSION}
MACOSX_BUNDLE_LONG_VERSION_STRING ${GLFW_VERSION}
MACOSX_BUNDLE_ICON_FILE glfw.icns
MACOSX_BUNDLE_INFO_PLIST "${GLFW_SOURCE_DIR}/CMake/Info.plist.in")
endif()

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@ -1,680 +0,0 @@
/*****************************************************************************
* Title: GLBoing
* Desc: Tribute to Amiga Boing.
* Author: Jim Brooks <gfx@jimbrooks.org>
* Original Amiga authors were R.J. Mical and Dale Luck.
* GLFW conversion by Marcus Geelnard
* Notes: - 360' = 2*PI [radian]
*
* - Distances between objects are created by doing a relative
* Z translations.
*
* - Although OpenGL enticingly supports alpha-blending,
* the shadow of the original Boing didn't affect the color
* of the grid.
*
* - [Marcus] Changed timing scheme from interval driven to frame-
* time based animation steps (which results in much smoother
* movement)
*
* History of Amiga Boing:
*
* Boing was demonstrated on the prototype Amiga (codenamed "Lorraine") in
* 1985. According to legend, it was written ad-hoc in one night by
* R. J. Mical and Dale Luck. Because the bouncing ball animation was so fast
* and smooth, attendees did not believe the Amiga prototype was really doing
* the rendering. Suspecting a trick, they began looking around the booth for
* a hidden computer or VCR.
*****************************************************************************/
#if defined(_MSC_VER)
// Make MS math.h define M_PI
#define _USE_MATH_DEFINES
#endif
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#define GLAD_GL_IMPLEMENTATION
#include <glad/gl.h>
#define GLFW_INCLUDE_NONE
#include <GLFW/glfw3.h>
#include <linmath.h>
/*****************************************************************************
* Various declarations and macros
*****************************************************************************/
/* Prototypes */
void init( void );
void display( void );
void reshape( GLFWwindow* window, int w, int h );
void key_callback( GLFWwindow* window, int key, int scancode, int action, int mods );
void mouse_button_callback( GLFWwindow* window, int button, int action, int mods );
void cursor_position_callback( GLFWwindow* window, double x, double y );
void DrawBoingBall( void );
void BounceBall( double dt );
void DrawBoingBallBand( GLfloat long_lo, GLfloat long_hi );
void DrawGrid( void );
#define RADIUS 70.f
#define STEP_LONGITUDE 22.5f /* 22.5 makes 8 bands like original Boing */
#define STEP_LATITUDE 22.5f
#define DIST_BALL (RADIUS * 2.f + RADIUS * 0.1f)
#define VIEW_SCENE_DIST (DIST_BALL * 3.f + 200.f)/* distance from viewer to middle of boing area */
#define GRID_SIZE (RADIUS * 4.5f) /* length (width) of grid */
#define BOUNCE_HEIGHT (RADIUS * 2.1f)
#define BOUNCE_WIDTH (RADIUS * 2.1f)
#define SHADOW_OFFSET_X -20.f
#define SHADOW_OFFSET_Y 10.f
#define SHADOW_OFFSET_Z 0.f
#define WALL_L_OFFSET 0.f
#define WALL_R_OFFSET 5.f
/* Animation speed (50.0 mimics the original GLUT demo speed) */
#define ANIMATION_SPEED 50.f
/* Maximum allowed delta time per physics iteration */
#define MAX_DELTA_T 0.02f
/* Draw ball, or its shadow */
typedef enum { DRAW_BALL, DRAW_BALL_SHADOW } DRAW_BALL_ENUM;
/* Vertex type */
typedef struct {float x; float y; float z;} vertex_t;
/* Global vars */
int windowed_xpos, windowed_ypos, windowed_width, windowed_height;
int width, height;
GLfloat deg_rot_y = 0.f;
GLfloat deg_rot_y_inc = 2.f;
int override_pos = GLFW_FALSE;
GLfloat cursor_x = 0.f;
GLfloat cursor_y = 0.f;
GLfloat ball_x = -RADIUS;
GLfloat ball_y = -RADIUS;
GLfloat ball_x_inc = 1.f;
GLfloat ball_y_inc = 2.f;
DRAW_BALL_ENUM drawBallHow;
double t;
double t_old = 0.f;
double dt;
/* Random number generator */
#ifndef RAND_MAX
#define RAND_MAX 4095
#endif
/*****************************************************************************
* Truncate a degree.
*****************************************************************************/
GLfloat TruncateDeg( GLfloat deg )
{
if ( deg >= 360.f )
return (deg - 360.f);
else
return deg;
}
/*****************************************************************************
* Convert a degree (360-based) into a radian.
* 360' = 2 * PI
*****************************************************************************/
double deg2rad( double deg )
{
return deg / 360 * (2 * M_PI);
}
/*****************************************************************************
* 360' sin().
*****************************************************************************/
double sin_deg( double deg )
{
return sin( deg2rad( deg ) );
}
/*****************************************************************************
* 360' cos().
*****************************************************************************/
double cos_deg( double deg )
{
return cos( deg2rad( deg ) );
}
/*****************************************************************************
* Compute a cross product (for a normal vector).
*
* c = a x b
*****************************************************************************/
void CrossProduct( vertex_t a, vertex_t b, vertex_t c, vertex_t *n )
{
GLfloat u1, u2, u3;
GLfloat v1, v2, v3;
u1 = b.x - a.x;
u2 = b.y - a.y;
u3 = b.y - a.z;
v1 = c.x - a.x;
v2 = c.y - a.y;
v3 = c.z - a.z;
n->x = u2 * v3 - v2 * u3;
n->y = u3 * v1 - v3 * u1;
n->z = u1 * v2 - v1 * u2;
}
#define BOING_DEBUG 0
/*****************************************************************************
* init()
*****************************************************************************/
void init( void )
{
/*
* Clear background.
*/
glClearColor( 0.55f, 0.55f, 0.55f, 0.f );
glShadeModel( GL_FLAT );
}
/*****************************************************************************
* display()
*****************************************************************************/
void display(void)
{
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
glPushMatrix();
drawBallHow = DRAW_BALL_SHADOW;
DrawBoingBall();
DrawGrid();
drawBallHow = DRAW_BALL;
DrawBoingBall();
glPopMatrix();
glFlush();
}
/*****************************************************************************
* reshape()
*****************************************************************************/
void reshape( GLFWwindow* window, int w, int h )
{
mat4x4 projection, view;
glViewport( 0, 0, (GLsizei)w, (GLsizei)h );
glMatrixMode( GL_PROJECTION );
mat4x4_perspective( projection,
2.f * (float) atan2( RADIUS, 200.f ),
(float)w / (float)h,
1.f, VIEW_SCENE_DIST );
glLoadMatrixf((const GLfloat*) projection);
glMatrixMode( GL_MODELVIEW );
{
vec3 eye = { 0.f, 0.f, VIEW_SCENE_DIST };
vec3 center = { 0.f, 0.f, 0.f };
vec3 up = { 0.f, -1.f, 0.f };
mat4x4_look_at( view, eye, center, up );
}
glLoadMatrixf((const GLfloat*) view);
}
void key_callback( GLFWwindow* window, int key, int scancode, int action, int mods )
{
if (action != GLFW_PRESS)
return;
if (key == GLFW_KEY_ESCAPE && mods == 0)
glfwSetWindowShouldClose(window, GLFW_TRUE);
if ((key == GLFW_KEY_ENTER && mods == GLFW_MOD_ALT) ||
(key == GLFW_KEY_F11 && mods == GLFW_MOD_ALT))
{
if (glfwGetWindowMonitor(window))
{
glfwSetWindowMonitor(window, NULL,
windowed_xpos, windowed_ypos,
windowed_width, windowed_height, 0);
}
else
{
GLFWmonitor* monitor = glfwGetPrimaryMonitor();
if (monitor)
{
const GLFWvidmode* mode = glfwGetVideoMode(monitor);
glfwGetWindowPos(window, &windowed_xpos, &windowed_ypos);
glfwGetWindowSize(window, &windowed_width, &windowed_height);
glfwSetWindowMonitor(window, monitor, 0, 0, mode->width, mode->height, mode->refreshRate);
}
}
}
}
static void set_ball_pos ( GLfloat x, GLfloat y )
{
ball_x = (width / 2) - x;
ball_y = y - (height / 2);
}
void mouse_button_callback( GLFWwindow* window, int button, int action, int mods )
{
if (button != GLFW_MOUSE_BUTTON_LEFT)
return;
if (action == GLFW_PRESS)
{
override_pos = GLFW_TRUE;
set_ball_pos(cursor_x, cursor_y);
}
else
{
override_pos = GLFW_FALSE;
}
}
void cursor_position_callback( GLFWwindow* window, double x, double y )
{
cursor_x = (float) x;
cursor_y = (float) y;
if ( override_pos )
set_ball_pos(cursor_x, cursor_y);
}
/*****************************************************************************
* Draw the Boing ball.
*
* The Boing ball is sphere in which each facet is a rectangle.
* Facet colors alternate between red and white.
* The ball is built by stacking latitudinal circles. Each circle is composed
* of a widely-separated set of points, so that each facet is noticeably large.
*****************************************************************************/
void DrawBoingBall( void )
{
GLfloat lon_deg; /* degree of longitude */
double dt_total, dt2;
glPushMatrix();
glMatrixMode( GL_MODELVIEW );
/*
* Another relative Z translation to separate objects.
*/
glTranslatef( 0.0, 0.0, DIST_BALL );
/* Update ball position and rotation (iterate if necessary) */
dt_total = dt;
while( dt_total > 0.0 )
{
dt2 = dt_total > MAX_DELTA_T ? MAX_DELTA_T : dt_total;
dt_total -= dt2;
BounceBall( dt2 );
deg_rot_y = TruncateDeg( deg_rot_y + deg_rot_y_inc*((float)dt2*ANIMATION_SPEED) );
}
/* Set ball position */
glTranslatef( ball_x, ball_y, 0.0 );
/*
* Offset the shadow.
*/
if ( drawBallHow == DRAW_BALL_SHADOW )
{
glTranslatef( SHADOW_OFFSET_X,
SHADOW_OFFSET_Y,
SHADOW_OFFSET_Z );
}
/*
* Tilt the ball.
*/
glRotatef( -20.0, 0.0, 0.0, 1.0 );
/*
* Continually rotate ball around Y axis.
*/
glRotatef( deg_rot_y, 0.0, 1.0, 0.0 );
/*
* Set OpenGL state for Boing ball.
*/
glCullFace( GL_FRONT );
glEnable( GL_CULL_FACE );
glEnable( GL_NORMALIZE );
/*
* Build a faceted latitude slice of the Boing ball,
* stepping same-sized vertical bands of the sphere.
*/
for ( lon_deg = 0;
lon_deg < 180;
lon_deg += STEP_LONGITUDE )
{
/*
* Draw a latitude circle at this longitude.
*/
DrawBoingBallBand( lon_deg,
lon_deg + STEP_LONGITUDE );
}
glPopMatrix();
return;
}
/*****************************************************************************
* Bounce the ball.
*****************************************************************************/
void BounceBall( double delta_t )
{
GLfloat sign;
GLfloat deg;
if ( override_pos )
return;
/* Bounce on walls */
if ( ball_x > (BOUNCE_WIDTH/2 + WALL_R_OFFSET ) )
{
ball_x_inc = -0.5f - 0.75f * (GLfloat)rand() / (GLfloat)RAND_MAX;
deg_rot_y_inc = -deg_rot_y_inc;
}
if ( ball_x < -(BOUNCE_HEIGHT/2 + WALL_L_OFFSET) )
{
ball_x_inc = 0.5f + 0.75f * (GLfloat)rand() / (GLfloat)RAND_MAX;
deg_rot_y_inc = -deg_rot_y_inc;
}
/* Bounce on floor / roof */
if ( ball_y > BOUNCE_HEIGHT/2 )
{
ball_y_inc = -0.75f - 1.f * (GLfloat)rand() / (GLfloat)RAND_MAX;
}
if ( ball_y < -BOUNCE_HEIGHT/2*0.85 )
{
ball_y_inc = 0.75f + 1.f * (GLfloat)rand() / (GLfloat)RAND_MAX;
}
/* Update ball position */
ball_x += ball_x_inc * ((float)delta_t*ANIMATION_SPEED);
ball_y += ball_y_inc * ((float)delta_t*ANIMATION_SPEED);
/*
* Simulate the effects of gravity on Y movement.
*/
if ( ball_y_inc < 0 ) sign = -1.0; else sign = 1.0;
deg = (ball_y + BOUNCE_HEIGHT/2) * 90 / BOUNCE_HEIGHT;
if ( deg > 80 ) deg = 80;
if ( deg < 10 ) deg = 10;
ball_y_inc = sign * 4.f * (float) sin_deg( deg );
}
/*****************************************************************************
* Draw a faceted latitude band of the Boing ball.
*
* Parms: long_lo, long_hi
* Low and high longitudes of slice, resp.
*****************************************************************************/
void DrawBoingBallBand( GLfloat long_lo,
GLfloat long_hi )
{
vertex_t vert_ne; /* "ne" means south-east, so on */
vertex_t vert_nw;
vertex_t vert_sw;
vertex_t vert_se;
vertex_t vert_norm;
GLfloat lat_deg;
static int colorToggle = 0;
/*
* Iterate through the points of a latitude circle.
* A latitude circle is a 2D set of X,Z points.
*/
for ( lat_deg = 0;
lat_deg <= (360 - STEP_LATITUDE);
lat_deg += STEP_LATITUDE )
{
/*
* Color this polygon with red or white.
*/
if ( colorToggle )
glColor3f( 0.8f, 0.1f, 0.1f );
else
glColor3f( 0.95f, 0.95f, 0.95f );
#if 0
if ( lat_deg >= 180 )
if ( colorToggle )
glColor3f( 0.1f, 0.8f, 0.1f );
else
glColor3f( 0.5f, 0.5f, 0.95f );
#endif
colorToggle = ! colorToggle;
/*
* Change color if drawing shadow.
*/
if ( drawBallHow == DRAW_BALL_SHADOW )
glColor3f( 0.35f, 0.35f, 0.35f );
/*
* Assign each Y.
*/
vert_ne.y = vert_nw.y = (float) cos_deg(long_hi) * RADIUS;
vert_sw.y = vert_se.y = (float) cos_deg(long_lo) * RADIUS;
/*
* Assign each X,Z with sin,cos values scaled by latitude radius indexed by longitude.
* Eg, long=0 and long=180 are at the poles, so zero scale is sin(longitude),
* while long=90 (sin(90)=1) is at equator.
*/
vert_ne.x = (float) cos_deg( lat_deg ) * (RADIUS * (float) sin_deg( long_lo + STEP_LONGITUDE ));
vert_se.x = (float) cos_deg( lat_deg ) * (RADIUS * (float) sin_deg( long_lo ));
vert_nw.x = (float) cos_deg( lat_deg + STEP_LATITUDE ) * (RADIUS * (float) sin_deg( long_lo + STEP_LONGITUDE ));
vert_sw.x = (float) cos_deg( lat_deg + STEP_LATITUDE ) * (RADIUS * (float) sin_deg( long_lo ));
vert_ne.z = (float) sin_deg( lat_deg ) * (RADIUS * (float) sin_deg( long_lo + STEP_LONGITUDE ));
vert_se.z = (float) sin_deg( lat_deg ) * (RADIUS * (float) sin_deg( long_lo ));
vert_nw.z = (float) sin_deg( lat_deg + STEP_LATITUDE ) * (RADIUS * (float) sin_deg( long_lo + STEP_LONGITUDE ));
vert_sw.z = (float) sin_deg( lat_deg + STEP_LATITUDE ) * (RADIUS * (float) sin_deg( long_lo ));
/*
* Draw the facet.
*/
glBegin( GL_POLYGON );
CrossProduct( vert_ne, vert_nw, vert_sw, &vert_norm );
glNormal3f( vert_norm.x, vert_norm.y, vert_norm.z );
glVertex3f( vert_ne.x, vert_ne.y, vert_ne.z );
glVertex3f( vert_nw.x, vert_nw.y, vert_nw.z );
glVertex3f( vert_sw.x, vert_sw.y, vert_sw.z );
glVertex3f( vert_se.x, vert_se.y, vert_se.z );
glEnd();
#if BOING_DEBUG
printf( "----------------------------------------------------------- \n" );
printf( "lat = %f long_lo = %f long_hi = %f \n", lat_deg, long_lo, long_hi );
printf( "vert_ne x = %.8f y = %.8f z = %.8f \n", vert_ne.x, vert_ne.y, vert_ne.z );
printf( "vert_nw x = %.8f y = %.8f z = %.8f \n", vert_nw.x, vert_nw.y, vert_nw.z );
printf( "vert_se x = %.8f y = %.8f z = %.8f \n", vert_se.x, vert_se.y, vert_se.z );
printf( "vert_sw x = %.8f y = %.8f z = %.8f \n", vert_sw.x, vert_sw.y, vert_sw.z );
#endif
}
/*
* Toggle color so that next band will opposite red/white colors than this one.
*/
colorToggle = ! colorToggle;
/*
* This circular band is done.
*/
return;
}
/*****************************************************************************
* Draw the purple grid of lines, behind the Boing ball.
* When the Workbench is dropped to the bottom, Boing shows 12 rows.
*****************************************************************************/
void DrawGrid( void )
{
int row, col;
const int rowTotal = 12; /* must be divisible by 2 */
const int colTotal = rowTotal; /* must be same as rowTotal */
const GLfloat widthLine = 2.0; /* should be divisible by 2 */
const GLfloat sizeCell = GRID_SIZE / rowTotal;
const GLfloat z_offset = -40.0;
GLfloat xl, xr;
GLfloat yt, yb;
glPushMatrix();
glDisable( GL_CULL_FACE );
/*
* Another relative Z translation to separate objects.
*/
glTranslatef( 0.0, 0.0, DIST_BALL );
/*
* Draw vertical lines (as skinny 3D rectangles).
*/
for ( col = 0; col <= colTotal; col++ )
{
/*
* Compute co-ords of line.
*/
xl = -GRID_SIZE / 2 + col * sizeCell;
xr = xl + widthLine;
yt = GRID_SIZE / 2;
yb = -GRID_SIZE / 2 - widthLine;
glBegin( GL_POLYGON );
glColor3f( 0.6f, 0.1f, 0.6f ); /* purple */
glVertex3f( xr, yt, z_offset ); /* NE */
glVertex3f( xl, yt, z_offset ); /* NW */
glVertex3f( xl, yb, z_offset ); /* SW */
glVertex3f( xr, yb, z_offset ); /* SE */
glEnd();
}
/*
* Draw horizontal lines (as skinny 3D rectangles).
*/
for ( row = 0; row <= rowTotal; row++ )
{
/*
* Compute co-ords of line.
*/
yt = GRID_SIZE / 2 - row * sizeCell;
yb = yt - widthLine;
xl = -GRID_SIZE / 2;
xr = GRID_SIZE / 2 + widthLine;
glBegin( GL_POLYGON );
glColor3f( 0.6f, 0.1f, 0.6f ); /* purple */
glVertex3f( xr, yt, z_offset ); /* NE */
glVertex3f( xl, yt, z_offset ); /* NW */
glVertex3f( xl, yb, z_offset ); /* SW */
glVertex3f( xr, yb, z_offset ); /* SE */
glEnd();
}
glPopMatrix();
return;
}
/*======================================================================*
* main()
*======================================================================*/
int main( void )
{
GLFWwindow* window;
/* Init GLFW */
if( !glfwInit() )
exit( EXIT_FAILURE );
window = glfwCreateWindow( 400, 400, "Boing (classic Amiga demo)", NULL, NULL );
if (!window)
{
glfwTerminate();
exit( EXIT_FAILURE );
}
glfwSetWindowAspectRatio(window, 1, 1);
glfwSetFramebufferSizeCallback(window, reshape);
glfwSetKeyCallback(window, key_callback);
glfwSetMouseButtonCallback(window, mouse_button_callback);
glfwSetCursorPosCallback(window, cursor_position_callback);
glfwMakeContextCurrent(window);
gladLoadGL(glfwGetProcAddress);
glfwSwapInterval( 1 );
glfwGetFramebufferSize(window, &width, &height);
reshape(window, width, height);
glfwSetTime( 0.0 );
init();
/* Main loop */
for (;;)
{
/* Timing */
t = glfwGetTime();
dt = t - t_old;
t_old = t;
/* Draw one frame */
display();
/* Swap buffers */
glfwSwapBuffers(window);
glfwPollEvents();
/* Check if we are still running */
if (glfwWindowShouldClose(window))
break;
}
glfwTerminate();
exit( EXIT_SUCCESS );
}

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thirdparty/glfw/examples/gears.c vendored
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/*
* 3-D gear wheels. This program is in the public domain.
*
* Command line options:
* -info print GL implementation information
* -exit automatically exit after 30 seconds
*
*
* Brian Paul
*
*
* Marcus Geelnard:
* - Conversion to GLFW
* - Time based rendering (frame rate independent)
* - Slightly modified camera that should work better for stereo viewing
*
*
* Camilla Löwy:
* - Removed FPS counter (this is not a benchmark)
* - Added a few comments
* - Enabled vsync
*/
#if defined(_MSC_VER)
// Make MS math.h define M_PI
#define _USE_MATH_DEFINES
#endif
#include <math.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#define GLAD_GL_IMPLEMENTATION
#include <glad/gl.h>
#define GLFW_INCLUDE_NONE
#include <GLFW/glfw3.h>
/**
Draw a gear wheel. You'll probably want to call this function when
building a display list since we do a lot of trig here.
Input: inner_radius - radius of hole at center
outer_radius - radius at center of teeth
width - width of gear teeth - number of teeth
tooth_depth - depth of tooth
**/
static void
gear(GLfloat inner_radius, GLfloat outer_radius, GLfloat width,
GLint teeth, GLfloat tooth_depth)
{
GLint i;
GLfloat r0, r1, r2;
GLfloat angle, da;
GLfloat u, v, len;
r0 = inner_radius;
r1 = outer_radius - tooth_depth / 2.f;
r2 = outer_radius + tooth_depth / 2.f;
da = 2.f * (float) M_PI / teeth / 4.f;
glShadeModel(GL_FLAT);
glNormal3f(0.f, 0.f, 1.f);
/* draw front face */
glBegin(GL_QUAD_STRIP);
for (i = 0; i <= teeth; i++) {
angle = i * 2.f * (float) M_PI / teeth;
glVertex3f(r0 * (float) cos(angle), r0 * (float) sin(angle), width * 0.5f);
glVertex3f(r1 * (float) cos(angle), r1 * (float) sin(angle), width * 0.5f);
if (i < teeth) {
glVertex3f(r0 * (float) cos(angle), r0 * (float) sin(angle), width * 0.5f);
glVertex3f(r1 * (float) cos(angle + 3 * da), r1 * (float) sin(angle + 3 * da), width * 0.5f);
}
}
glEnd();
/* draw front sides of teeth */
glBegin(GL_QUADS);
da = 2.f * (float) M_PI / teeth / 4.f;
for (i = 0; i < teeth; i++) {
angle = i * 2.f * (float) M_PI / teeth;
glVertex3f(r1 * (float) cos(angle), r1 * (float) sin(angle), width * 0.5f);
glVertex3f(r2 * (float) cos(angle + da), r2 * (float) sin(angle + da), width * 0.5f);
glVertex3f(r2 * (float) cos(angle + 2 * da), r2 * (float) sin(angle + 2 * da), width * 0.5f);
glVertex3f(r1 * (float) cos(angle + 3 * da), r1 * (float) sin(angle + 3 * da), width * 0.5f);
}
glEnd();
glNormal3f(0.0, 0.0, -1.0);
/* draw back face */
glBegin(GL_QUAD_STRIP);
for (i = 0; i <= teeth; i++) {
angle = i * 2.f * (float) M_PI / teeth;
glVertex3f(r1 * (float) cos(angle), r1 * (float) sin(angle), -width * 0.5f);
glVertex3f(r0 * (float) cos(angle), r0 * (float) sin(angle), -width * 0.5f);
if (i < teeth) {
glVertex3f(r1 * (float) cos(angle + 3 * da), r1 * (float) sin(angle + 3 * da), -width * 0.5f);
glVertex3f(r0 * (float) cos(angle), r0 * (float) sin(angle), -width * 0.5f);
}
}
glEnd();
/* draw back sides of teeth */
glBegin(GL_QUADS);
da = 2.f * (float) M_PI / teeth / 4.f;
for (i = 0; i < teeth; i++) {
angle = i * 2.f * (float) M_PI / teeth;
glVertex3f(r1 * (float) cos(angle + 3 * da), r1 * (float) sin(angle + 3 * da), -width * 0.5f);
glVertex3f(r2 * (float) cos(angle + 2 * da), r2 * (float) sin(angle + 2 * da), -width * 0.5f);
glVertex3f(r2 * (float) cos(angle + da), r2 * (float) sin(angle + da), -width * 0.5f);
glVertex3f(r1 * (float) cos(angle), r1 * (float) sin(angle), -width * 0.5f);
}
glEnd();
/* draw outward faces of teeth */
glBegin(GL_QUAD_STRIP);
for (i = 0; i < teeth; i++) {
angle = i * 2.f * (float) M_PI / teeth;
glVertex3f(r1 * (float) cos(angle), r1 * (float) sin(angle), width * 0.5f);
glVertex3f(r1 * (float) cos(angle), r1 * (float) sin(angle), -width * 0.5f);
u = r2 * (float) cos(angle + da) - r1 * (float) cos(angle);
v = r2 * (float) sin(angle + da) - r1 * (float) sin(angle);
len = (float) sqrt(u * u + v * v);
u /= len;
v /= len;
glNormal3f(v, -u, 0.0);
glVertex3f(r2 * (float) cos(angle + da), r2 * (float) sin(angle + da), width * 0.5f);
glVertex3f(r2 * (float) cos(angle + da), r2 * (float) sin(angle + da), -width * 0.5f);
glNormal3f((float) cos(angle), (float) sin(angle), 0.f);
glVertex3f(r2 * (float) cos(angle + 2 * da), r2 * (float) sin(angle + 2 * da), width * 0.5f);
glVertex3f(r2 * (float) cos(angle + 2 * da), r2 * (float) sin(angle + 2 * da), -width * 0.5f);
u = r1 * (float) cos(angle + 3 * da) - r2 * (float) cos(angle + 2 * da);
v = r1 * (float) sin(angle + 3 * da) - r2 * (float) sin(angle + 2 * da);
glNormal3f(v, -u, 0.f);
glVertex3f(r1 * (float) cos(angle + 3 * da), r1 * (float) sin(angle + 3 * da), width * 0.5f);
glVertex3f(r1 * (float) cos(angle + 3 * da), r1 * (float) sin(angle + 3 * da), -width * 0.5f);
glNormal3f((float) cos(angle), (float) sin(angle), 0.f);
}
glVertex3f(r1 * (float) cos(0), r1 * (float) sin(0), width * 0.5f);
glVertex3f(r1 * (float) cos(0), r1 * (float) sin(0), -width * 0.5f);
glEnd();
glShadeModel(GL_SMOOTH);
/* draw inside radius cylinder */
glBegin(GL_QUAD_STRIP);
for (i = 0; i <= teeth; i++) {
angle = i * 2.f * (float) M_PI / teeth;
glNormal3f(-(float) cos(angle), -(float) sin(angle), 0.f);
glVertex3f(r0 * (float) cos(angle), r0 * (float) sin(angle), -width * 0.5f);
glVertex3f(r0 * (float) cos(angle), r0 * (float) sin(angle), width * 0.5f);
}
glEnd();
}
static GLfloat view_rotx = 20.f, view_roty = 30.f, view_rotz = 0.f;
static GLint gear1, gear2, gear3;
static GLfloat angle = 0.f;
/* OpenGL draw function & timing */
static void draw(void)
{
glClearColor(0.0, 0.0, 0.0, 0.0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glRotatef(view_rotx, 1.0, 0.0, 0.0);
glRotatef(view_roty, 0.0, 1.0, 0.0);
glRotatef(view_rotz, 0.0, 0.0, 1.0);
glPushMatrix();
glTranslatef(-3.0, -2.0, 0.0);
glRotatef(angle, 0.0, 0.0, 1.0);
glCallList(gear1);
glPopMatrix();
glPushMatrix();
glTranslatef(3.1f, -2.f, 0.f);
glRotatef(-2.f * angle - 9.f, 0.f, 0.f, 1.f);
glCallList(gear2);
glPopMatrix();
glPushMatrix();
glTranslatef(-3.1f, 4.2f, 0.f);
glRotatef(-2.f * angle - 25.f, 0.f, 0.f, 1.f);
glCallList(gear3);
glPopMatrix();
glPopMatrix();
}
/* update animation parameters */
static void animate(void)
{
angle = 100.f * (float) glfwGetTime();
}
/* change view angle, exit upon ESC */
void key( GLFWwindow* window, int k, int s, int action, int mods )
{
if( action != GLFW_PRESS ) return;
switch (k) {
case GLFW_KEY_Z:
if( mods & GLFW_MOD_SHIFT )
view_rotz -= 5.0;
else
view_rotz += 5.0;
break;
case GLFW_KEY_ESCAPE:
glfwSetWindowShouldClose(window, GLFW_TRUE);
break;
case GLFW_KEY_UP:
view_rotx += 5.0;
break;
case GLFW_KEY_DOWN:
view_rotx -= 5.0;
break;
case GLFW_KEY_LEFT:
view_roty += 5.0;
break;
case GLFW_KEY_RIGHT:
view_roty -= 5.0;
break;
default:
return;
}
}
/* new window size */
void reshape( GLFWwindow* window, int width, int height )
{
GLfloat h = (GLfloat) height / (GLfloat) width;
GLfloat xmax, znear, zfar;
znear = 5.0f;
zfar = 30.0f;
xmax = znear * 0.5f;
glViewport( 0, 0, (GLint) width, (GLint) height );
glMatrixMode( GL_PROJECTION );
glLoadIdentity();
glFrustum( -xmax, xmax, -xmax*h, xmax*h, znear, zfar );
glMatrixMode( GL_MODELVIEW );
glLoadIdentity();
glTranslatef( 0.0, 0.0, -20.0 );
}
/* program & OpenGL initialization */
static void init(void)
{
static GLfloat pos[4] = {5.f, 5.f, 10.f, 0.f};
static GLfloat red[4] = {0.8f, 0.1f, 0.f, 1.f};
static GLfloat green[4] = {0.f, 0.8f, 0.2f, 1.f};
static GLfloat blue[4] = {0.2f, 0.2f, 1.f, 1.f};
glLightfv(GL_LIGHT0, GL_POSITION, pos);
glEnable(GL_CULL_FACE);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glEnable(GL_DEPTH_TEST);
/* make the gears */
gear1 = glGenLists(1);
glNewList(gear1, GL_COMPILE);
glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, red);
gear(1.f, 4.f, 1.f, 20, 0.7f);
glEndList();
gear2 = glGenLists(1);
glNewList(gear2, GL_COMPILE);
glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, green);
gear(0.5f, 2.f, 2.f, 10, 0.7f);
glEndList();
gear3 = glGenLists(1);
glNewList(gear3, GL_COMPILE);
glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, blue);
gear(1.3f, 2.f, 0.5f, 10, 0.7f);
glEndList();
glEnable(GL_NORMALIZE);
}
/* program entry */
int main(int argc, char *argv[])
{
GLFWwindow* window;
int width, height;
if( !glfwInit() )
{
fprintf( stderr, "Failed to initialize GLFW\n" );
exit( EXIT_FAILURE );
}
glfwWindowHint(GLFW_DEPTH_BITS, 16);
glfwWindowHint(GLFW_TRANSPARENT_FRAMEBUFFER, GLFW_TRUE);
window = glfwCreateWindow( 300, 300, "Gears", NULL, NULL );
if (!window)
{
fprintf( stderr, "Failed to open GLFW window\n" );
glfwTerminate();
exit( EXIT_FAILURE );
}
// Set callback functions
glfwSetFramebufferSizeCallback(window, reshape);
glfwSetKeyCallback(window, key);
glfwMakeContextCurrent(window);
gladLoadGL(glfwGetProcAddress);
glfwSwapInterval( 1 );
glfwGetFramebufferSize(window, &width, &height);
reshape(window, width, height);
// Parse command-line options
init();
// Main loop
while( !glfwWindowShouldClose(window) )
{
// Draw gears
draw();
// Update animation
animate();
// Swap buffers
glfwSwapBuffers(window);
glfwPollEvents();
}
// Terminate GLFW
glfwTerminate();
// Exit program
exit( EXIT_SUCCESS );
}

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thirdparty/glfw/examples/glfw.rc vendored
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thirdparty/glfw/examples/heightmap.c vendored
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//========================================================================
// Heightmap example program using OpenGL 3 core profile
// Copyright (c) 2010 Olivier Delannoy
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would
// be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
// be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
//========================================================================
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#include <assert.h>
#include <stddef.h>
#define GLAD_GL_IMPLEMENTATION
#include <glad/gl.h>
#define GLFW_INCLUDE_NONE
#include <GLFW/glfw3.h>
/* Map height updates */
#define MAX_CIRCLE_SIZE (5.0f)
#define MAX_DISPLACEMENT (1.0f)
#define DISPLACEMENT_SIGN_LIMIT (0.3f)
#define MAX_ITER (200)
#define NUM_ITER_AT_A_TIME (1)
/* Map general information */
#define MAP_SIZE (10.0f)
#define MAP_NUM_VERTICES (80)
#define MAP_NUM_TOTAL_VERTICES (MAP_NUM_VERTICES*MAP_NUM_VERTICES)
#define MAP_NUM_LINES (3* (MAP_NUM_VERTICES - 1) * (MAP_NUM_VERTICES - 1) + \
2 * (MAP_NUM_VERTICES - 1))
/**********************************************************************
* Default shader programs
*********************************************************************/
static const char* vertex_shader_text =
"#version 150\n"
"uniform mat4 project;\n"
"uniform mat4 modelview;\n"
"in float x;\n"
"in float y;\n"
"in float z;\n"
"\n"
"void main()\n"
"{\n"
" gl_Position = project * modelview * vec4(x, y, z, 1.0);\n"
"}\n";
static const char* fragment_shader_text =
"#version 150\n"
"out vec4 color;\n"
"void main()\n"
"{\n"
" color = vec4(0.2, 1.0, 0.2, 1.0); \n"
"}\n";
/**********************************************************************
* Values for shader uniforms
*********************************************************************/
/* Frustum configuration */
static GLfloat view_angle = 45.0f;
static GLfloat aspect_ratio = 4.0f/3.0f;
static GLfloat z_near = 1.0f;
static GLfloat z_far = 100.f;
/* Projection matrix */
static GLfloat projection_matrix[16] = {
1.0f, 0.0f, 0.0f, 0.0f,
0.0f, 1.0f, 0.0f, 0.0f,
0.0f, 0.0f, 1.0f, 0.0f,
0.0f, 0.0f, 0.0f, 1.0f
};
/* Model view matrix */
static GLfloat modelview_matrix[16] = {
1.0f, 0.0f, 0.0f, 0.0f,
0.0f, 1.0f, 0.0f, 0.0f,
0.0f, 0.0f, 1.0f, 0.0f,
0.0f, 0.0f, 0.0f, 1.0f
};
/**********************************************************************
* Heightmap vertex and index data
*********************************************************************/
static GLfloat map_vertices[3][MAP_NUM_TOTAL_VERTICES];
static GLuint map_line_indices[2*MAP_NUM_LINES];
/* Store uniform location for the shaders
* Those values are setup as part of the process of creating
* the shader program. They should not be used before creating
* the program.
*/
static GLuint mesh;
static GLuint mesh_vbo[4];
/**********************************************************************
* OpenGL helper functions
*********************************************************************/
/* Creates a shader object of the specified type using the specified text
*/
static GLuint make_shader(GLenum type, const char* text)
{
GLuint shader;
GLint shader_ok;
GLsizei log_length;
char info_log[8192];
shader = glCreateShader(type);
if (shader != 0)
{
glShaderSource(shader, 1, (const GLchar**)&text, NULL);
glCompileShader(shader);
glGetShaderiv(shader, GL_COMPILE_STATUS, &shader_ok);
if (shader_ok != GL_TRUE)
{
fprintf(stderr, "ERROR: Failed to compile %s shader\n", (type == GL_FRAGMENT_SHADER) ? "fragment" : "vertex" );
glGetShaderInfoLog(shader, 8192, &log_length,info_log);
fprintf(stderr, "ERROR: \n%s\n\n", info_log);
glDeleteShader(shader);
shader = 0;
}
}
return shader;
}
/* Creates a program object using the specified vertex and fragment text
*/
static GLuint make_shader_program(const char* vs_text, const char* fs_text)
{
GLuint program = 0u;
GLint program_ok;
GLuint vertex_shader = 0u;
GLuint fragment_shader = 0u;
GLsizei log_length;
char info_log[8192];
vertex_shader = make_shader(GL_VERTEX_SHADER, vs_text);
if (vertex_shader != 0u)
{
fragment_shader = make_shader(GL_FRAGMENT_SHADER, fs_text);
if (fragment_shader != 0u)
{
/* make the program that connect the two shader and link it */
program = glCreateProgram();
if (program != 0u)
{
/* attach both shader and link */
glAttachShader(program, vertex_shader);
glAttachShader(program, fragment_shader);
glLinkProgram(program);
glGetProgramiv(program, GL_LINK_STATUS, &program_ok);
if (program_ok != GL_TRUE)
{
fprintf(stderr, "ERROR, failed to link shader program\n");
glGetProgramInfoLog(program, 8192, &log_length, info_log);
fprintf(stderr, "ERROR: \n%s\n\n", info_log);
glDeleteProgram(program);
glDeleteShader(fragment_shader);
glDeleteShader(vertex_shader);
program = 0u;
}
}
}
else
{
fprintf(stderr, "ERROR: Unable to load fragment shader\n");
glDeleteShader(vertex_shader);
}
}
else
{
fprintf(stderr, "ERROR: Unable to load vertex shader\n");
}
return program;
}
/**********************************************************************
* Geometry creation functions
*********************************************************************/
/* Generate vertices and indices for the heightmap
*/
static void init_map(void)
{
int i;
int j;
int k;
GLfloat step = MAP_SIZE / (MAP_NUM_VERTICES - 1);
GLfloat x = 0.0f;
GLfloat z = 0.0f;
/* Create a flat grid */
k = 0;
for (i = 0 ; i < MAP_NUM_VERTICES ; ++i)
{
for (j = 0 ; j < MAP_NUM_VERTICES ; ++j)
{
map_vertices[0][k] = x;
map_vertices[1][k] = 0.0f;
map_vertices[2][k] = z;
z += step;
++k;
}
x += step;
z = 0.0f;
}
#if DEBUG_ENABLED
for (i = 0 ; i < MAP_NUM_TOTAL_VERTICES ; ++i)
{
printf ("Vertice %d (%f, %f, %f)\n",
i, map_vertices[0][i], map_vertices[1][i], map_vertices[2][i]);
}
#endif
/* create indices */
/* line fan based on i
* i+1
* | / i + n + 1
* | /
* |/
* i --- i + n
*/
/* close the top of the square */
k = 0;
for (i = 0 ; i < MAP_NUM_VERTICES -1 ; ++i)
{
map_line_indices[k++] = (i + 1) * MAP_NUM_VERTICES -1;
map_line_indices[k++] = (i + 2) * MAP_NUM_VERTICES -1;
}
/* close the right of the square */
for (i = 0 ; i < MAP_NUM_VERTICES -1 ; ++i)
{
map_line_indices[k++] = (MAP_NUM_VERTICES - 1) * MAP_NUM_VERTICES + i;
map_line_indices[k++] = (MAP_NUM_VERTICES - 1) * MAP_NUM_VERTICES + i + 1;
}
for (i = 0 ; i < (MAP_NUM_VERTICES - 1) ; ++i)
{
for (j = 0 ; j < (MAP_NUM_VERTICES - 1) ; ++j)
{
int ref = i * (MAP_NUM_VERTICES) + j;
map_line_indices[k++] = ref;
map_line_indices[k++] = ref + 1;
map_line_indices[k++] = ref;
map_line_indices[k++] = ref + MAP_NUM_VERTICES;
map_line_indices[k++] = ref;
map_line_indices[k++] = ref + MAP_NUM_VERTICES + 1;
}
}
#ifdef DEBUG_ENABLED
for (k = 0 ; k < 2 * MAP_NUM_LINES ; k += 2)
{
int beg, end;
beg = map_line_indices[k];
end = map_line_indices[k+1];
printf ("Line %d: %d -> %d (%f, %f, %f) -> (%f, %f, %f)\n",
k / 2, beg, end,
map_vertices[0][beg], map_vertices[1][beg], map_vertices[2][beg],
map_vertices[0][end], map_vertices[1][end], map_vertices[2][end]);
}
#endif
}
static void generate_heightmap__circle(float* center_x, float* center_y,
float* size, float* displacement)
{
float sign;
/* random value for element in between [0-1.0] */
*center_x = (MAP_SIZE * rand()) / (float) RAND_MAX;
*center_y = (MAP_SIZE * rand()) / (float) RAND_MAX;
*size = (MAX_CIRCLE_SIZE * rand()) / (float) RAND_MAX;
sign = (1.0f * rand()) / (float) RAND_MAX;
sign = (sign < DISPLACEMENT_SIGN_LIMIT) ? -1.0f : 1.0f;
*displacement = (sign * (MAX_DISPLACEMENT * rand())) / (float) RAND_MAX;
}
/* Run the specified number of iterations of the generation process for the
* heightmap
*/
static void update_map(int num_iter)
{
assert(num_iter > 0);
while(num_iter)
{
/* center of the circle */
float center_x;
float center_z;
float circle_size;
float disp;
size_t ii;
generate_heightmap__circle(&center_x, &center_z, &circle_size, &disp);
disp = disp / 2.0f;
for (ii = 0u ; ii < MAP_NUM_TOTAL_VERTICES ; ++ii)
{
GLfloat dx = center_x - map_vertices[0][ii];
GLfloat dz = center_z - map_vertices[2][ii];
GLfloat pd = (2.0f * (float) sqrt((dx * dx) + (dz * dz))) / circle_size;
if (fabs(pd) <= 1.0f)
{
/* tx,tz is within the circle */
GLfloat new_height = disp + (float) (cos(pd*3.14f)*disp);
map_vertices[1][ii] += new_height;
}
}
--num_iter;
}
}
/**********************************************************************
* OpenGL helper functions
*********************************************************************/
/* Create VBO, IBO and VAO objects for the heightmap geometry and bind them to
* the specified program object
*/
static void make_mesh(GLuint program)
{
GLuint attrloc;
glGenVertexArrays(1, &mesh);
glGenBuffers(4, mesh_vbo);
glBindVertexArray(mesh);
/* Prepare the data for drawing through a buffer inidices */
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mesh_vbo[3]);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(GLuint)* MAP_NUM_LINES * 2, map_line_indices, GL_STATIC_DRAW);
/* Prepare the attributes for rendering */
attrloc = glGetAttribLocation(program, "x");
glBindBuffer(GL_ARRAY_BUFFER, mesh_vbo[0]);
glBufferData(GL_ARRAY_BUFFER, sizeof(GLfloat) * MAP_NUM_TOTAL_VERTICES, &map_vertices[0][0], GL_STATIC_DRAW);
glEnableVertexAttribArray(attrloc);
glVertexAttribPointer(attrloc, 1, GL_FLOAT, GL_FALSE, 0, 0);
attrloc = glGetAttribLocation(program, "z");
glBindBuffer(GL_ARRAY_BUFFER, mesh_vbo[2]);
glBufferData(GL_ARRAY_BUFFER, sizeof(GLfloat) * MAP_NUM_TOTAL_VERTICES, &map_vertices[2][0], GL_STATIC_DRAW);
glEnableVertexAttribArray(attrloc);
glVertexAttribPointer(attrloc, 1, GL_FLOAT, GL_FALSE, 0, 0);
attrloc = glGetAttribLocation(program, "y");
glBindBuffer(GL_ARRAY_BUFFER, mesh_vbo[1]);
glBufferData(GL_ARRAY_BUFFER, sizeof(GLfloat) * MAP_NUM_TOTAL_VERTICES, &map_vertices[1][0], GL_DYNAMIC_DRAW);
glEnableVertexAttribArray(attrloc);
glVertexAttribPointer(attrloc, 1, GL_FLOAT, GL_FALSE, 0, 0);
}
/* Update VBO vertices from source data
*/
static void update_mesh(void)
{
glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(GLfloat) * MAP_NUM_TOTAL_VERTICES, &map_vertices[1][0]);
}
/**********************************************************************
* GLFW callback functions
*********************************************************************/
static void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods)
{
switch(key)
{
case GLFW_KEY_ESCAPE:
/* Exit program on Escape */
glfwSetWindowShouldClose(window, GLFW_TRUE);
break;
}
}
static void error_callback(int error, const char* description)
{
fprintf(stderr, "Error: %s\n", description);
}
int main(int argc, char** argv)
{
GLFWwindow* window;
int iter;
double dt;
double last_update_time;
int frame;
float f;
GLint uloc_modelview;
GLint uloc_project;
int width, height;
GLuint shader_program;
glfwSetErrorCallback(error_callback);
if (!glfwInit())
exit(EXIT_FAILURE);
glfwWindowHint(GLFW_RESIZABLE, GLFW_FALSE);
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GLFW_TRUE);
window = glfwCreateWindow(800, 600, "GLFW OpenGL3 Heightmap demo", NULL, NULL);
if (! window )
{
glfwTerminate();
exit(EXIT_FAILURE);
}
/* Register events callback */
glfwSetKeyCallback(window, key_callback);
glfwMakeContextCurrent(window);
gladLoadGL(glfwGetProcAddress);
/* Prepare opengl resources for rendering */
shader_program = make_shader_program(vertex_shader_text, fragment_shader_text);
if (shader_program == 0u)
{
glfwTerminate();
exit(EXIT_FAILURE);
}
glUseProgram(shader_program);
uloc_project = glGetUniformLocation(shader_program, "project");
uloc_modelview = glGetUniformLocation(shader_program, "modelview");
/* Compute the projection matrix */
f = 1.0f / tanf(view_angle / 2.0f);
projection_matrix[0] = f / aspect_ratio;
projection_matrix[5] = f;
projection_matrix[10] = (z_far + z_near)/ (z_near - z_far);
projection_matrix[11] = -1.0f;
projection_matrix[14] = 2.0f * (z_far * z_near) / (z_near - z_far);
glUniformMatrix4fv(uloc_project, 1, GL_FALSE, projection_matrix);
/* Set the camera position */
modelview_matrix[12] = -5.0f;
modelview_matrix[13] = -5.0f;
modelview_matrix[14] = -20.0f;
glUniformMatrix4fv(uloc_modelview, 1, GL_FALSE, modelview_matrix);
/* Create mesh data */
init_map();
make_mesh(shader_program);
/* Create vao + vbo to store the mesh */
/* Create the vbo to store all the information for the grid and the height */
/* setup the scene ready for rendering */
glfwGetFramebufferSize(window, &width, &height);
glViewport(0, 0, width, height);
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
/* main loop */
frame = 0;
iter = 0;
last_update_time = glfwGetTime();
while (!glfwWindowShouldClose(window))
{
++frame;
/* render the next frame */
glClear(GL_COLOR_BUFFER_BIT);
glDrawElements(GL_LINES, 2* MAP_NUM_LINES , GL_UNSIGNED_INT, 0);
/* display and process events through callbacks */
glfwSwapBuffers(window);
glfwPollEvents();
/* Check the frame rate and update the heightmap if needed */
dt = glfwGetTime();
if ((dt - last_update_time) > 0.2)
{
/* generate the next iteration of the heightmap */
if (iter < MAX_ITER)
{
update_map(NUM_ITER_AT_A_TIME);
update_mesh();
iter += NUM_ITER_AT_A_TIME;
}
last_update_time = dt;
frame = 0;
}
}
glfwTerminate();
exit(EXIT_SUCCESS);
}

165
thirdparty/glfw/examples/offscreen.c vendored
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//========================================================================
// Offscreen rendering example
// Copyright (c) Camilla Löwy <elmindreda@glfw.org>
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would
// be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
// be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
//========================================================================
#define GLAD_GL_IMPLEMENTATION
#include <glad/gl.h>
#define GLFW_INCLUDE_NONE
#include <GLFW/glfw3.h>
#include "linmath.h"
#include <stdlib.h>
#include <stdio.h>
#define STB_IMAGE_WRITE_IMPLEMENTATION
#include <stb_image_write.h>
static const struct
{
float x, y;
float r, g, b;
} vertices[3] =
{
{ -0.6f, -0.4f, 1.f, 0.f, 0.f },
{ 0.6f, -0.4f, 0.f, 1.f, 0.f },
{ 0.f, 0.6f, 0.f, 0.f, 1.f }
};
static const char* vertex_shader_text =
"#version 110\n"
"uniform mat4 MVP;\n"
"attribute vec3 vCol;\n"
"attribute vec2 vPos;\n"
"varying vec3 color;\n"
"void main()\n"
"{\n"
" gl_Position = MVP * vec4(vPos, 0.0, 1.0);\n"
" color = vCol;\n"
"}\n";
static const char* fragment_shader_text =
"#version 110\n"
"varying vec3 color;\n"
"void main()\n"
"{\n"
" gl_FragColor = vec4(color, 1.0);\n"
"}\n";
static void error_callback(int error, const char* description)
{
fprintf(stderr, "Error: %s\n", description);
}
int main(void)
{
GLFWwindow* window;
GLuint vertex_buffer, vertex_shader, fragment_shader, program;
GLint mvp_location, vpos_location, vcol_location;
float ratio;
int width, height;
mat4x4 mvp;
char* buffer;
glfwSetErrorCallback(error_callback);
glfwInitHint(GLFW_COCOA_MENUBAR, GLFW_FALSE);
if (!glfwInit())
exit(EXIT_FAILURE);
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
glfwWindowHint(GLFW_VISIBLE, GLFW_FALSE);
window = glfwCreateWindow(640, 480, "Simple example", NULL, NULL);
if (!window)
{
glfwTerminate();
exit(EXIT_FAILURE);
}
glfwMakeContextCurrent(window);
gladLoadGL(glfwGetProcAddress);
// NOTE: OpenGL error checks have been omitted for brevity
glGenBuffers(1, &vertex_buffer);
glBindBuffer(GL_ARRAY_BUFFER, vertex_buffer);
glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
vertex_shader = glCreateShader(GL_VERTEX_SHADER);
glShaderSource(vertex_shader, 1, &vertex_shader_text, NULL);
glCompileShader(vertex_shader);
fragment_shader = glCreateShader(GL_FRAGMENT_SHADER);
glShaderSource(fragment_shader, 1, &fragment_shader_text, NULL);
glCompileShader(fragment_shader);
program = glCreateProgram();
glAttachShader(program, vertex_shader);
glAttachShader(program, fragment_shader);
glLinkProgram(program);
mvp_location = glGetUniformLocation(program, "MVP");
vpos_location = glGetAttribLocation(program, "vPos");
vcol_location = glGetAttribLocation(program, "vCol");
glEnableVertexAttribArray(vpos_location);
glVertexAttribPointer(vpos_location, 2, GL_FLOAT, GL_FALSE,
sizeof(vertices[0]), (void*) 0);
glEnableVertexAttribArray(vcol_location);
glVertexAttribPointer(vcol_location, 3, GL_FLOAT, GL_FALSE,
sizeof(vertices[0]), (void*) (sizeof(float) * 2));
glfwGetFramebufferSize(window, &width, &height);
ratio = width / (float) height;
glViewport(0, 0, width, height);
glClear(GL_COLOR_BUFFER_BIT);
mat4x4_ortho(mvp, -ratio, ratio, -1.f, 1.f, 1.f, -1.f);
glUseProgram(program);
glUniformMatrix4fv(mvp_location, 1, GL_FALSE, (const GLfloat*) mvp);
glDrawArrays(GL_TRIANGLES, 0, 3);
glFinish();
buffer = calloc(4, width * height);
glReadPixels(0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, buffer);
// Write image Y-flipped because OpenGL
stbi_write_png("offscreen.png",
width, height, 4,
buffer + (width * 4 * (height - 1)),
-width * 4);
free(buffer);
glfwDestroyWindow(window);
glfwTerminate();
exit(EXIT_SUCCESS);
}

1074
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234
thirdparty/glfw/examples/sharing.c vendored
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//========================================================================
// Context sharing example
// Copyright (c) Camilla Löwy <elmindreda@glfw.org>
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would
// be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
// be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
//========================================================================
#define GLAD_GL_IMPLEMENTATION
#include <glad/gl.h>
#define GLFW_INCLUDE_NONE
#include <GLFW/glfw3.h>
#include <stdio.h>
#include <stdlib.h>
#include "linmath.h"
static const char* vertex_shader_text =
"#version 110\n"
"uniform mat4 MVP;\n"
"attribute vec2 vPos;\n"
"varying vec2 texcoord;\n"
"void main()\n"
"{\n"
" gl_Position = MVP * vec4(vPos, 0.0, 1.0);\n"
" texcoord = vPos;\n"
"}\n";
static const char* fragment_shader_text =
"#version 110\n"
"uniform sampler2D texture;\n"
"uniform vec3 color;\n"
"varying vec2 texcoord;\n"
"void main()\n"
"{\n"
" gl_FragColor = vec4(color * texture2D(texture, texcoord).rgb, 1.0);\n"
"}\n";
static const vec2 vertices[4] =
{
{ 0.f, 0.f },
{ 1.f, 0.f },
{ 1.f, 1.f },
{ 0.f, 1.f }
};
static void error_callback(int error, const char* description)
{
fprintf(stderr, "Error: %s\n", description);
}
static void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods)
{
if (action == GLFW_PRESS && key == GLFW_KEY_ESCAPE)
glfwSetWindowShouldClose(window, GLFW_TRUE);
}
int main(int argc, char** argv)
{
GLFWwindow* windows[2];
GLuint texture, program, vertex_buffer;
GLint mvp_location, vpos_location, color_location, texture_location;
glfwSetErrorCallback(error_callback);
if (!glfwInit())
exit(EXIT_FAILURE);
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
windows[0] = glfwCreateWindow(400, 400, "First", NULL, NULL);
if (!windows[0])
{
glfwTerminate();
exit(EXIT_FAILURE);
}
glfwSetKeyCallback(windows[0], key_callback);
glfwMakeContextCurrent(windows[0]);
// Only enable vsync for the first of the windows to be swapped to
// avoid waiting out the interval for each window
glfwSwapInterval(1);
// The contexts are created with the same APIs so the function
// pointers should be re-usable between them
gladLoadGL(glfwGetProcAddress);
// Create the OpenGL objects inside the first context, created above
// All objects will be shared with the second context, created below
{
int x, y;
char pixels[16 * 16];
GLuint vertex_shader, fragment_shader;
glGenTextures(1, &texture);
glBindTexture(GL_TEXTURE_2D, texture);
srand((unsigned int) glfwGetTimerValue());
for (y = 0; y < 16; y++)
{
for (x = 0; x < 16; x++)
pixels[y * 16 + x] = rand() % 256;
}
glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE, 16, 16, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, pixels);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
vertex_shader = glCreateShader(GL_VERTEX_SHADER);
glShaderSource(vertex_shader, 1, &vertex_shader_text, NULL);
glCompileShader(vertex_shader);
fragment_shader = glCreateShader(GL_FRAGMENT_SHADER);
glShaderSource(fragment_shader, 1, &fragment_shader_text, NULL);
glCompileShader(fragment_shader);
program = glCreateProgram();
glAttachShader(program, vertex_shader);
glAttachShader(program, fragment_shader);
glLinkProgram(program);
mvp_location = glGetUniformLocation(program, "MVP");
color_location = glGetUniformLocation(program, "color");
texture_location = glGetUniformLocation(program, "texture");
vpos_location = glGetAttribLocation(program, "vPos");
glGenBuffers(1, &vertex_buffer);
glBindBuffer(GL_ARRAY_BUFFER, vertex_buffer);
glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
}
glUseProgram(program);
glUniform1i(texture_location, 0);
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, texture);
glBindBuffer(GL_ARRAY_BUFFER, vertex_buffer);
glEnableVertexAttribArray(vpos_location);
glVertexAttribPointer(vpos_location, 2, GL_FLOAT, GL_FALSE,
sizeof(vertices[0]), (void*) 0);
windows[1] = glfwCreateWindow(400, 400, "Second", NULL, windows[0]);
if (!windows[1])
{
glfwTerminate();
exit(EXIT_FAILURE);
}
// Place the second window to the right of the first
{
int xpos, ypos, left, right, width;
glfwGetWindowSize(windows[0], &width, NULL);
glfwGetWindowFrameSize(windows[0], &left, NULL, &right, NULL);
glfwGetWindowPos(windows[0], &xpos, &ypos);
glfwSetWindowPos(windows[1], xpos + width + left + right, ypos);
}
glfwSetKeyCallback(windows[1], key_callback);
glfwMakeContextCurrent(windows[1]);
// While objects are shared, the global context state is not and will
// need to be set up for each context
glUseProgram(program);
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, texture);
glBindBuffer(GL_ARRAY_BUFFER, vertex_buffer);
glEnableVertexAttribArray(vpos_location);
glVertexAttribPointer(vpos_location, 2, GL_FLOAT, GL_FALSE,
sizeof(vertices[0]), (void*) 0);
while (!glfwWindowShouldClose(windows[0]) &&
!glfwWindowShouldClose(windows[1]))
{
int i;
const vec3 colors[2] =
{
{ 0.8f, 0.4f, 1.f },
{ 0.3f, 0.4f, 1.f }
};
for (i = 0; i < 2; i++)
{
int width, height;
mat4x4 mvp;
glfwGetFramebufferSize(windows[i], &width, &height);
glfwMakeContextCurrent(windows[i]);
glViewport(0, 0, width, height);
mat4x4_ortho(mvp, 0.f, 1.f, 0.f, 1.f, 0.f, 1.f);
glUniformMatrix4fv(mvp_location, 1, GL_FALSE, (const GLfloat*) mvp);
glUniform3fv(color_location, 1, colors[i]);
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
glfwSwapBuffers(windows[i]);
}
glfwWaitEvents();
}
glfwTerminate();
exit(EXIT_SUCCESS);
}

547
thirdparty/glfw/examples/splitview.c vendored
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@ -1,547 +0,0 @@
//========================================================================
// This is an example program for the GLFW library
//
// The program uses a "split window" view, rendering four views of the
// same scene in one window (e.g. useful for 3D modelling software). This
// demo uses scissors to separate the four different rendering areas from
// each other.
//
// (If the code seems a little bit strange here and there, it may be
// because I am not a friend of orthogonal projections)
//========================================================================
#define GLAD_GL_IMPLEMENTATION
#include <glad/gl.h>
#define GLFW_INCLUDE_NONE
#include <GLFW/glfw3.h>
#if defined(_MSC_VER)
// Make MS math.h define M_PI
#define _USE_MATH_DEFINES
#endif
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <linmath.h>
//========================================================================
// Global variables
//========================================================================
// Mouse position
static double xpos = 0, ypos = 0;
// Window size
static int width, height;
// Active view: 0 = none, 1 = upper left, 2 = upper right, 3 = lower left,
// 4 = lower right
static int active_view = 0;
// Rotation around each axis
static int rot_x = 0, rot_y = 0, rot_z = 0;
// Do redraw?
static int do_redraw = 1;
//========================================================================
// Draw a solid torus (use a display list for the model)
//========================================================================
#define TORUS_MAJOR 1.5
#define TORUS_MINOR 0.5
#define TORUS_MAJOR_RES 32
#define TORUS_MINOR_RES 32
static void drawTorus(void)
{
static GLuint torus_list = 0;
int i, j, k;
double s, t, x, y, z, nx, ny, nz, scale, twopi;
if (!torus_list)
{
// Start recording displaylist
torus_list = glGenLists(1);
glNewList(torus_list, GL_COMPILE_AND_EXECUTE);
// Draw torus
twopi = 2.0 * M_PI;
for (i = 0; i < TORUS_MINOR_RES; i++)
{
glBegin(GL_QUAD_STRIP);
for (j = 0; j <= TORUS_MAJOR_RES; j++)
{
for (k = 1; k >= 0; k--)
{
s = (i + k) % TORUS_MINOR_RES + 0.5;
t = j % TORUS_MAJOR_RES;
// Calculate point on surface
x = (TORUS_MAJOR + TORUS_MINOR * cos(s * twopi / TORUS_MINOR_RES)) * cos(t * twopi / TORUS_MAJOR_RES);
y = TORUS_MINOR * sin(s * twopi / TORUS_MINOR_RES);
z = (TORUS_MAJOR + TORUS_MINOR * cos(s * twopi / TORUS_MINOR_RES)) * sin(t * twopi / TORUS_MAJOR_RES);
// Calculate surface normal
nx = x - TORUS_MAJOR * cos(t * twopi / TORUS_MAJOR_RES);
ny = y;
nz = z - TORUS_MAJOR * sin(t * twopi / TORUS_MAJOR_RES);
scale = 1.0 / sqrt(nx*nx + ny*ny + nz*nz);
nx *= scale;
ny *= scale;
nz *= scale;
glNormal3f((float) nx, (float) ny, (float) nz);
glVertex3f((float) x, (float) y, (float) z);
}
}
glEnd();
}
// Stop recording displaylist
glEndList();
}
else
{
// Playback displaylist
glCallList(torus_list);
}
}
//========================================================================
// Draw the scene (a rotating torus)
//========================================================================
static void drawScene(void)
{
const GLfloat model_diffuse[4] = {1.0f, 0.8f, 0.8f, 1.0f};
const GLfloat model_specular[4] = {0.6f, 0.6f, 0.6f, 1.0f};
const GLfloat model_shininess = 20.0f;
glPushMatrix();
// Rotate the object
glRotatef((GLfloat) rot_x * 0.5f, 1.0f, 0.0f, 0.0f);
glRotatef((GLfloat) rot_y * 0.5f, 0.0f, 1.0f, 0.0f);
glRotatef((GLfloat) rot_z * 0.5f, 0.0f, 0.0f, 1.0f);
// Set model color (used for orthogonal views, lighting disabled)
glColor4fv(model_diffuse);
// Set model material (used for perspective view, lighting enabled)
glMaterialfv(GL_FRONT, GL_DIFFUSE, model_diffuse);
glMaterialfv(GL_FRONT, GL_SPECULAR, model_specular);
glMaterialf(GL_FRONT, GL_SHININESS, model_shininess);
// Draw torus
drawTorus();
glPopMatrix();
}
//========================================================================
// Draw a 2D grid (used for orthogonal views)
//========================================================================
static void drawGrid(float scale, int steps)
{
int i;
float x, y;
mat4x4 view;
glPushMatrix();
// Set background to some dark bluish grey
glClearColor(0.05f, 0.05f, 0.2f, 0.0f);
glClear(GL_COLOR_BUFFER_BIT);
// Setup modelview matrix (flat XY view)
{
vec3 eye = { 0.f, 0.f, 1.f };
vec3 center = { 0.f, 0.f, 0.f };
vec3 up = { 0.f, 1.f, 0.f };
mat4x4_look_at(view, eye, center, up);
}
glLoadMatrixf((const GLfloat*) view);
// We don't want to update the Z-buffer
glDepthMask(GL_FALSE);
// Set grid color
glColor3f(0.0f, 0.5f, 0.5f);
glBegin(GL_LINES);
// Horizontal lines
x = scale * 0.5f * (float) (steps - 1);
y = -scale * 0.5f * (float) (steps - 1);
for (i = 0; i < steps; i++)
{
glVertex3f(-x, y, 0.0f);
glVertex3f(x, y, 0.0f);
y += scale;
}
// Vertical lines
x = -scale * 0.5f * (float) (steps - 1);
y = scale * 0.5f * (float) (steps - 1);
for (i = 0; i < steps; i++)
{
glVertex3f(x, -y, 0.0f);
glVertex3f(x, y, 0.0f);
x += scale;
}
glEnd();
// Enable Z-buffer writing again
glDepthMask(GL_TRUE);
glPopMatrix();
}
//========================================================================
// Draw all views
//========================================================================
static void drawAllViews(void)
{
const GLfloat light_position[4] = {0.0f, 8.0f, 8.0f, 1.0f};
const GLfloat light_diffuse[4] = {1.0f, 1.0f, 1.0f, 1.0f};
const GLfloat light_specular[4] = {1.0f, 1.0f, 1.0f, 1.0f};
const GLfloat light_ambient[4] = {0.2f, 0.2f, 0.3f, 1.0f};
float aspect;
mat4x4 view, projection;
// Calculate aspect of window
if (height > 0)
aspect = (float) width / (float) height;
else
aspect = 1.f;
// Clear screen
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Enable scissor test
glEnable(GL_SCISSOR_TEST);
// Enable depth test
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LEQUAL);
// ** ORTHOGONAL VIEWS **
// For orthogonal views, use wireframe rendering
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
// Enable line anti-aliasing
glEnable(GL_LINE_SMOOTH);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
// Setup orthogonal projection matrix
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(-3.0 * aspect, 3.0 * aspect, -3.0, 3.0, 1.0, 50.0);
// Upper left view (TOP VIEW)
glViewport(0, height / 2, width / 2, height / 2);
glScissor(0, height / 2, width / 2, height / 2);
glMatrixMode(GL_MODELVIEW);
{
vec3 eye = { 0.f, 10.f, 1e-3f };
vec3 center = { 0.f, 0.f, 0.f };
vec3 up = { 0.f, 1.f, 0.f };
mat4x4_look_at( view, eye, center, up );
}
glLoadMatrixf((const GLfloat*) view);
drawGrid(0.5, 12);
drawScene();
// Lower left view (FRONT VIEW)
glViewport(0, 0, width / 2, height / 2);
glScissor(0, 0, width / 2, height / 2);
glMatrixMode(GL_MODELVIEW);
{
vec3 eye = { 0.f, 0.f, 10.f };
vec3 center = { 0.f, 0.f, 0.f };
vec3 up = { 0.f, 1.f, 0.f };
mat4x4_look_at( view, eye, center, up );
}
glLoadMatrixf((const GLfloat*) view);
drawGrid(0.5, 12);
drawScene();
// Lower right view (SIDE VIEW)
glViewport(width / 2, 0, width / 2, height / 2);
glScissor(width / 2, 0, width / 2, height / 2);
glMatrixMode(GL_MODELVIEW);
{
vec3 eye = { 10.f, 0.f, 0.f };
vec3 center = { 0.f, 0.f, 0.f };
vec3 up = { 0.f, 1.f, 0.f };
mat4x4_look_at( view, eye, center, up );
}
glLoadMatrixf((const GLfloat*) view);
drawGrid(0.5, 12);
drawScene();
// Disable line anti-aliasing
glDisable(GL_LINE_SMOOTH);
glDisable(GL_BLEND);
// ** PERSPECTIVE VIEW **
// For perspective view, use solid rendering
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
// Enable face culling (faster rendering)
glEnable(GL_CULL_FACE);
glCullFace(GL_BACK);
glFrontFace(GL_CW);
// Setup perspective projection matrix
glMatrixMode(GL_PROJECTION);
mat4x4_perspective(projection,
65.f * (float) M_PI / 180.f,
aspect,
1.f, 50.f);
glLoadMatrixf((const GLfloat*) projection);
// Upper right view (PERSPECTIVE VIEW)
glViewport(width / 2, height / 2, width / 2, height / 2);
glScissor(width / 2, height / 2, width / 2, height / 2);
glMatrixMode(GL_MODELVIEW);
{
vec3 eye = { 3.f, 1.5f, 3.f };
vec3 center = { 0.f, 0.f, 0.f };
vec3 up = { 0.f, 1.f, 0.f };
mat4x4_look_at( view, eye, center, up );
}
glLoadMatrixf((const GLfloat*) view);
// Configure and enable light source 1
glLightfv(GL_LIGHT1, GL_POSITION, light_position);
glLightfv(GL_LIGHT1, GL_AMBIENT, light_ambient);
glLightfv(GL_LIGHT1, GL_DIFFUSE, light_diffuse);
glLightfv(GL_LIGHT1, GL_SPECULAR, light_specular);
glEnable(GL_LIGHT1);
glEnable(GL_LIGHTING);
// Draw scene
drawScene();
// Disable lighting
glDisable(GL_LIGHTING);
// Disable face culling
glDisable(GL_CULL_FACE);
// Disable depth test
glDisable(GL_DEPTH_TEST);
// Disable scissor test
glDisable(GL_SCISSOR_TEST);
// Draw a border around the active view
if (active_view > 0 && active_view != 2)
{
glViewport(0, 0, width, height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0.0, 2.0, 0.0, 2.0, 0.0, 1.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glTranslatef((GLfloat) ((active_view - 1) & 1), (GLfloat) (1 - (active_view - 1) / 2), 0.0f);
glColor3f(1.0f, 1.0f, 0.6f);
glBegin(GL_LINE_STRIP);
glVertex2i(0, 0);
glVertex2i(1, 0);
glVertex2i(1, 1);
glVertex2i(0, 1);
glVertex2i(0, 0);
glEnd();
}
}
//========================================================================
// Framebuffer size callback function
//========================================================================
static void framebufferSizeFun(GLFWwindow* window, int w, int h)
{
width = w;
height = h > 0 ? h : 1;
do_redraw = 1;
}
//========================================================================
// Window refresh callback function
//========================================================================
static void windowRefreshFun(GLFWwindow* window)
{
drawAllViews();
glfwSwapBuffers(window);
do_redraw = 0;
}
//========================================================================
// Mouse position callback function
//========================================================================
static void cursorPosFun(GLFWwindow* window, double x, double y)
{
int wnd_width, wnd_height, fb_width, fb_height;
double scale;
glfwGetWindowSize(window, &wnd_width, &wnd_height);
glfwGetFramebufferSize(window, &fb_width, &fb_height);
scale = (double) fb_width / (double) wnd_width;
x *= scale;
y *= scale;
// Depending on which view was selected, rotate around different axes
switch (active_view)
{
case 1:
rot_x += (int) (y - ypos);
rot_z += (int) (x - xpos);
do_redraw = 1;
break;
case 3:
rot_x += (int) (y - ypos);
rot_y += (int) (x - xpos);
do_redraw = 1;
break;
case 4:
rot_y += (int) (x - xpos);
rot_z += (int) (y - ypos);
do_redraw = 1;
break;
default:
// Do nothing for perspective view, or if no view is selected
break;
}
// Remember cursor position
xpos = x;
ypos = y;
}
//========================================================================
// Mouse button callback function
//========================================================================
static void mouseButtonFun(GLFWwindow* window, int button, int action, int mods)
{
if ((button == GLFW_MOUSE_BUTTON_LEFT) && action == GLFW_PRESS)
{
// Detect which of the four views was clicked
active_view = 1;
if (xpos >= width / 2)
active_view += 1;
if (ypos >= height / 2)
active_view += 2;
}
else if (button == GLFW_MOUSE_BUTTON_LEFT)
{
// Deselect any previously selected view
active_view = 0;
}
do_redraw = 1;
}
static void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods)
{
if (key == GLFW_KEY_ESCAPE && action == GLFW_PRESS)
glfwSetWindowShouldClose(window, GLFW_TRUE);
}
//========================================================================
// main
//========================================================================
int main(void)
{
GLFWwindow* window;
// Initialise GLFW
if (!glfwInit())
{
fprintf(stderr, "Failed to initialize GLFW\n");
exit(EXIT_FAILURE);
}
glfwWindowHint(GLFW_SAMPLES, 4);
// Open OpenGL window
window = glfwCreateWindow(500, 500, "Split view demo", NULL, NULL);
if (!window)
{
fprintf(stderr, "Failed to open GLFW window\n");
glfwTerminate();
exit(EXIT_FAILURE);
}
// Set callback functions
glfwSetFramebufferSizeCallback(window, framebufferSizeFun);
glfwSetWindowRefreshCallback(window, windowRefreshFun);
glfwSetCursorPosCallback(window, cursorPosFun);
glfwSetMouseButtonCallback(window, mouseButtonFun);
glfwSetKeyCallback(window, key_callback);
// Enable vsync
glfwMakeContextCurrent(window);
gladLoadGL(glfwGetProcAddress);
glfwSwapInterval(1);
if (GLAD_GL_ARB_multisample || GLAD_GL_VERSION_1_3)
glEnable(GL_MULTISAMPLE_ARB);
glfwGetFramebufferSize(window, &width, &height);
framebufferSizeFun(window, width, height);
// Main loop
for (;;)
{
// Only redraw if we need to
if (do_redraw)
windowRefreshFun(window);
// Wait for new events
glfwWaitEvents();
// Check if the window should be closed
if (glfwWindowShouldClose(window))
break;
}
// Close OpenGL window and terminate GLFW
glfwTerminate();
exit(EXIT_SUCCESS);
}

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@ -1,171 +0,0 @@
//========================================================================
// OpenGL triangle example
// Copyright (c) Camilla Löwy <elmindreda@glfw.org>
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would
// be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
// be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
//========================================================================
//! [code]
#define GLAD_GL_IMPLEMENTATION
#include <glad/gl.h>
#define GLFW_INCLUDE_NONE
#include <GLFW/glfw3.h>
#include "linmath.h"
#include <stdlib.h>
#include <stddef.h>
#include <stdio.h>
typedef struct Vertex
{
vec2 pos;
vec3 col;
} Vertex;
static const Vertex vertices[3] =
{
{ { -0.6f, -0.4f }, { 1.f, 0.f, 0.f } },
{ { 0.6f, -0.4f }, { 0.f, 1.f, 0.f } },
{ { 0.f, 0.6f }, { 0.f, 0.f, 1.f } }
};
static const char* vertex_shader_text =
"#version 330\n"
"uniform mat4 MVP;\n"
"in vec3 vCol;\n"
"in vec2 vPos;\n"
"out vec3 color;\n"
"void main()\n"
"{\n"
" gl_Position = MVP * vec4(vPos, 0.0, 1.0);\n"
" color = vCol;\n"
"}\n";
static const char* fragment_shader_text =
"#version 330\n"
"in vec3 color;\n"
"out vec4 fragment;\n"
"void main()\n"
"{\n"
" fragment = vec4(color, 1.0);\n"
"}\n";
static void error_callback(int error, const char* description)
{
fprintf(stderr, "Error: %s\n", description);
}
static void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods)
{
if (key == GLFW_KEY_ESCAPE && action == GLFW_PRESS)
glfwSetWindowShouldClose(window, GLFW_TRUE);
}
int main(void)
{
glfwSetErrorCallback(error_callback);
if (!glfwInit())
exit(EXIT_FAILURE);
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
GLFWwindow* window = glfwCreateWindow(640, 480, "OpenGL Triangle", NULL, NULL);
if (!window)
{
glfwTerminate();
exit(EXIT_FAILURE);
}
glfwSetKeyCallback(window, key_callback);
glfwMakeContextCurrent(window);
gladLoadGL(glfwGetProcAddress);
glfwSwapInterval(1);
// NOTE: OpenGL error checks have been omitted for brevity
GLuint vertex_buffer;
glGenBuffers(1, &vertex_buffer);
glBindBuffer(GL_ARRAY_BUFFER, vertex_buffer);
glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
const GLuint vertex_shader = glCreateShader(GL_VERTEX_SHADER);
glShaderSource(vertex_shader, 1, &vertex_shader_text, NULL);
glCompileShader(vertex_shader);
const GLuint fragment_shader = glCreateShader(GL_FRAGMENT_SHADER);
glShaderSource(fragment_shader, 1, &fragment_shader_text, NULL);
glCompileShader(fragment_shader);
const GLuint program = glCreateProgram();
glAttachShader(program, vertex_shader);
glAttachShader(program, fragment_shader);
glLinkProgram(program);
const GLint mvp_location = glGetUniformLocation(program, "MVP");
const GLint vpos_location = glGetAttribLocation(program, "vPos");
const GLint vcol_location = glGetAttribLocation(program, "vCol");
GLuint vertex_array;
glGenVertexArrays(1, &vertex_array);
glBindVertexArray(vertex_array);
glEnableVertexAttribArray(vpos_location);
glVertexAttribPointer(vpos_location, 2, GL_FLOAT, GL_FALSE,
sizeof(Vertex), (void*) offsetof(Vertex, pos));
glEnableVertexAttribArray(vcol_location);
glVertexAttribPointer(vcol_location, 3, GL_FLOAT, GL_FALSE,
sizeof(Vertex), (void*) offsetof(Vertex, col));
while (!glfwWindowShouldClose(window))
{
int width, height;
glfwGetFramebufferSize(window, &width, &height);
const float ratio = width / (float) height;
glViewport(0, 0, width, height);
glClear(GL_COLOR_BUFFER_BIT);
mat4x4 m, p, mvp;
mat4x4_identity(m);
mat4x4_rotate_Z(m, m, (float) glfwGetTime());
mat4x4_ortho(p, -ratio, ratio, -1.f, 1.f, 1.f, -1.f);
mat4x4_mul(mvp, p, m);
glUseProgram(program);
glUniformMatrix4fv(mvp_location, 1, GL_FALSE, (const GLfloat*) &mvp);
glBindVertexArray(vertex_array);
glDrawArrays(GL_TRIANGLES, 0, 3);
glfwSwapBuffers(window);
glfwPollEvents();
}
glfwDestroyWindow(window);
glfwTerminate();
exit(EXIT_SUCCESS);
}
//! [code]

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@ -1,170 +0,0 @@
//========================================================================
// OpenGL ES 2.0 triangle example
// Copyright (c) Camilla Löwy <elmindreda@glfw.org>
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would
// be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
// be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
//========================================================================
#define GLAD_GLES2_IMPLEMENTATION
#include <glad/gles2.h>
#define GLFW_INCLUDE_NONE
#include <GLFW/glfw3.h>
#include "linmath.h"
#include <stdlib.h>
#include <stddef.h>
#include <stdio.h>
typedef struct Vertex
{
vec2 pos;
vec3 col;
} Vertex;
static const Vertex vertices[3] =
{
{ { -0.6f, -0.4f }, { 1.f, 0.f, 0.f } },
{ { 0.6f, -0.4f }, { 0.f, 1.f, 0.f } },
{ { 0.f, 0.6f }, { 0.f, 0.f, 1.f } }
};
static const char* vertex_shader_text =
"#version 100\n"
"precision mediump float;\n"
"uniform mat4 MVP;\n"
"attribute vec3 vCol;\n"
"attribute vec2 vPos;\n"
"varying vec3 color;\n"
"void main()\n"
"{\n"
" gl_Position = MVP * vec4(vPos, 0.0, 1.0);\n"
" color = vCol;\n"
"}\n";
static const char* fragment_shader_text =
"#version 100\n"
"precision mediump float;\n"
"varying vec3 color;\n"
"void main()\n"
"{\n"
" gl_FragColor = vec4(color, 1.0);\n"
"}\n";
static void error_callback(int error, const char* description)
{
fprintf(stderr, "GLFW Error: %s\n", description);
}
static void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods)
{
if (key == GLFW_KEY_ESCAPE && action == GLFW_PRESS)
glfwSetWindowShouldClose(window, GLFW_TRUE);
}
int main(void)
{
glfwSetErrorCallback(error_callback);
if (!glfwInit())
exit(EXIT_FAILURE);
glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API);
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
glfwWindowHint(GLFW_CONTEXT_CREATION_API, GLFW_EGL_CONTEXT_API);
GLFWwindow* window = glfwCreateWindow(640, 480, "OpenGL ES 2.0 Triangle (EGL)", NULL, NULL);
if (!window)
{
glfwWindowHint(GLFW_CONTEXT_CREATION_API, GLFW_NATIVE_CONTEXT_API);
window = glfwCreateWindow(640, 480, "OpenGL ES 2.0 Triangle", NULL, NULL);
if (!window)
{
glfwTerminate();
exit(EXIT_FAILURE);
}
}
glfwSetKeyCallback(window, key_callback);
glfwMakeContextCurrent(window);
gladLoadGLES2(glfwGetProcAddress);
glfwSwapInterval(1);
GLuint vertex_buffer;
glGenBuffers(1, &vertex_buffer);
glBindBuffer(GL_ARRAY_BUFFER, vertex_buffer);
glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
const GLuint vertex_shader = glCreateShader(GL_VERTEX_SHADER);
glShaderSource(vertex_shader, 1, &vertex_shader_text, NULL);
glCompileShader(vertex_shader);
const GLuint fragment_shader = glCreateShader(GL_FRAGMENT_SHADER);
glShaderSource(fragment_shader, 1, &fragment_shader_text, NULL);
glCompileShader(fragment_shader);
const GLuint program = glCreateProgram();
glAttachShader(program, vertex_shader);
glAttachShader(program, fragment_shader);
glLinkProgram(program);
const GLint mvp_location = glGetUniformLocation(program, "MVP");
const GLint vpos_location = glGetAttribLocation(program, "vPos");
const GLint vcol_location = glGetAttribLocation(program, "vCol");
glEnableVertexAttribArray(vpos_location);
glEnableVertexAttribArray(vcol_location);
glVertexAttribPointer(vpos_location, 2, GL_FLOAT, GL_FALSE,
sizeof(Vertex), (void*) offsetof(Vertex, pos));
glVertexAttribPointer(vcol_location, 3, GL_FLOAT, GL_FALSE,
sizeof(Vertex), (void*) offsetof(Vertex, col));
while (!glfwWindowShouldClose(window))
{
int width, height;
glfwGetFramebufferSize(window, &width, &height);
const float ratio = width / (float) height;
glViewport(0, 0, width, height);
glClear(GL_COLOR_BUFFER_BIT);
mat4x4 m, p, mvp;
mat4x4_identity(m);
mat4x4_rotate_Z(m, m, (float) glfwGetTime());
mat4x4_ortho(p, -ratio, ratio, -1.f, 1.f, 1.f, -1.f);
mat4x4_mul(mvp, p, m);
glUseProgram(program);
glUniformMatrix4fv(mvp_location, 1, GL_FALSE, (const GLfloat*) &mvp);
glDrawArrays(GL_TRIANGLES, 0, 3);
glfwSwapBuffers(window);
glfwPollEvents();
}
glfwDestroyWindow(window);
glfwTerminate();
exit(EXIT_SUCCESS);
}

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/*****************************************************************************
* Wave Simulation in OpenGL
* (C) 2002 Jakob Thomsen
* http://home.in.tum.de/~thomsen
* Modified for GLFW by Sylvain Hellegouarch - sh@programmationworld.com
* Modified for variable frame rate by Marcus Geelnard
* 2003-Jan-31: Minor cleanups and speedups / MG
* 2010-10-24: Formatting and cleanup - Camilla Löwy
*****************************************************************************/
#if defined(_MSC_VER)
// Make MS math.h define M_PI
#define _USE_MATH_DEFINES
#endif
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#define GLAD_GL_IMPLEMENTATION
#include <glad/gl.h>
#define GLFW_INCLUDE_NONE
#include <GLFW/glfw3.h>
#include <linmath.h>
// Maximum delta T to allow for differential calculations
#define MAX_DELTA_T 0.01
// Animation speed (10.0 looks good)
#define ANIMATION_SPEED 10.0
GLfloat alpha = 210.f, beta = -70.f;
GLfloat zoom = 2.f;
double cursorX;
double cursorY;
struct Vertex
{
GLfloat x, y, z;
GLfloat r, g, b;
};
#define GRIDW 50
#define GRIDH 50
#define VERTEXNUM (GRIDW*GRIDH)
#define QUADW (GRIDW - 1)
#define QUADH (GRIDH - 1)
#define QUADNUM (QUADW*QUADH)
GLuint quad[4 * QUADNUM];
struct Vertex vertex[VERTEXNUM];
/* The grid will look like this:
*
* 3 4 5
* *---*---*
* | | |
* | 0 | 1 |
* | | |
* *---*---*
* 0 1 2
*/
//========================================================================
// Initialize grid geometry
//========================================================================
void init_vertices(void)
{
int x, y, p;
// Place the vertices in a grid
for (y = 0; y < GRIDH; y++)
{
for (x = 0; x < GRIDW; x++)
{
p = y * GRIDW + x;
vertex[p].x = (GLfloat) (x - GRIDW / 2) / (GLfloat) (GRIDW / 2);
vertex[p].y = (GLfloat) (y - GRIDH / 2) / (GLfloat) (GRIDH / 2);
vertex[p].z = 0;
if ((x % 4 < 2) ^ (y % 4 < 2))
vertex[p].r = 0.0;
else
vertex[p].r = 1.0;
vertex[p].g = (GLfloat) y / (GLfloat) GRIDH;
vertex[p].b = 1.f - ((GLfloat) x / (GLfloat) GRIDW + (GLfloat) y / (GLfloat) GRIDH) / 2.f;
}
}
for (y = 0; y < QUADH; y++)
{
for (x = 0; x < QUADW; x++)
{
p = 4 * (y * QUADW + x);
quad[p + 0] = y * GRIDW + x; // Some point
quad[p + 1] = y * GRIDW + x + 1; // Neighbor at the right side
quad[p + 2] = (y + 1) * GRIDW + x + 1; // Upper right neighbor
quad[p + 3] = (y + 1) * GRIDW + x; // Upper neighbor
}
}
}
double dt;
double p[GRIDW][GRIDH];
double vx[GRIDW][GRIDH], vy[GRIDW][GRIDH];
double ax[GRIDW][GRIDH], ay[GRIDW][GRIDH];
//========================================================================
// Initialize grid
//========================================================================
void init_grid(void)
{
int x, y;
double dx, dy, d;
for (y = 0; y < GRIDH; y++)
{
for (x = 0; x < GRIDW; x++)
{
dx = (double) (x - GRIDW / 2);
dy = (double) (y - GRIDH / 2);
d = sqrt(dx * dx + dy * dy);
if (d < 0.1 * (double) (GRIDW / 2))
{
d = d * 10.0;
p[x][y] = -cos(d * (M_PI / (double)(GRIDW * 4))) * 100.0;
}
else
p[x][y] = 0.0;
vx[x][y] = 0.0;
vy[x][y] = 0.0;
}
}
}
//========================================================================
// Draw scene
//========================================================================
void draw_scene(GLFWwindow* window)
{
// Clear the color and depth buffers
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// We don't want to modify the projection matrix
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
// Move back
glTranslatef(0.0, 0.0, -zoom);
// Rotate the view
glRotatef(beta, 1.0, 0.0, 0.0);
glRotatef(alpha, 0.0, 0.0, 1.0);
glDrawElements(GL_QUADS, 4 * QUADNUM, GL_UNSIGNED_INT, quad);
glfwSwapBuffers(window);
}
//========================================================================
// Initialize Miscellaneous OpenGL state
//========================================================================
void init_opengl(void)
{
// Use Gouraud (smooth) shading
glShadeModel(GL_SMOOTH);
// Switch on the z-buffer
glEnable(GL_DEPTH_TEST);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_COLOR_ARRAY);
glVertexPointer(3, GL_FLOAT, sizeof(struct Vertex), vertex);
glColorPointer(3, GL_FLOAT, sizeof(struct Vertex), &vertex[0].r); // Pointer to the first color
glPointSize(2.0);
// Background color is black
glClearColor(0, 0, 0, 0);
}
//========================================================================
// Modify the height of each vertex according to the pressure
//========================================================================
void adjust_grid(void)
{
int pos;
int x, y;
for (y = 0; y < GRIDH; y++)
{
for (x = 0; x < GRIDW; x++)
{
pos = y * GRIDW + x;
vertex[pos].z = (float) (p[x][y] * (1.0 / 50.0));
}
}
}
//========================================================================
// Calculate wave propagation
//========================================================================
void calc_grid(void)
{
int x, y, x2, y2;
double time_step = dt * ANIMATION_SPEED;
// Compute accelerations
for (x = 0; x < GRIDW; x++)
{
x2 = (x + 1) % GRIDW;
for(y = 0; y < GRIDH; y++)
ax[x][y] = p[x][y] - p[x2][y];
}
for (y = 0; y < GRIDH; y++)
{
y2 = (y + 1) % GRIDH;
for(x = 0; x < GRIDW; x++)
ay[x][y] = p[x][y] - p[x][y2];
}
// Compute speeds
for (x = 0; x < GRIDW; x++)
{
for (y = 0; y < GRIDH; y++)
{
vx[x][y] = vx[x][y] + ax[x][y] * time_step;
vy[x][y] = vy[x][y] + ay[x][y] * time_step;
}
}
// Compute pressure
for (x = 1; x < GRIDW; x++)
{
x2 = x - 1;
for (y = 1; y < GRIDH; y++)
{
y2 = y - 1;
p[x][y] = p[x][y] + (vx[x2][y] - vx[x][y] + vy[x][y2] - vy[x][y]) * time_step;
}
}
}
//========================================================================
// Print errors
//========================================================================
static void error_callback(int error, const char* description)
{
fprintf(stderr, "Error: %s\n", description);
}
//========================================================================
// Handle key strokes
//========================================================================
void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods)
{
if (action != GLFW_PRESS)
return;
switch (key)
{
case GLFW_KEY_ESCAPE:
glfwSetWindowShouldClose(window, GLFW_TRUE);
break;
case GLFW_KEY_SPACE:
init_grid();
break;
case GLFW_KEY_LEFT:
alpha += 5;
break;
case GLFW_KEY_RIGHT:
alpha -= 5;
break;
case GLFW_KEY_UP:
beta -= 5;
break;
case GLFW_KEY_DOWN:
beta += 5;
break;
case GLFW_KEY_PAGE_UP:
zoom -= 0.25f;
if (zoom < 0.f)
zoom = 0.f;
break;
case GLFW_KEY_PAGE_DOWN:
zoom += 0.25f;
break;
default:
break;
}
}
//========================================================================
// Callback function for mouse button events
//========================================================================
void mouse_button_callback(GLFWwindow* window, int button, int action, int mods)
{
if (button != GLFW_MOUSE_BUTTON_LEFT)
return;
if (action == GLFW_PRESS)
{
glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
glfwGetCursorPos(window, &cursorX, &cursorY);
}
else
glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
}
//========================================================================
// Callback function for cursor motion events
//========================================================================
void cursor_position_callback(GLFWwindow* window, double x, double y)
{
if (glfwGetInputMode(window, GLFW_CURSOR) == GLFW_CURSOR_DISABLED)
{
alpha += (GLfloat) (x - cursorX) / 10.f;
beta += (GLfloat) (y - cursorY) / 10.f;
cursorX = x;
cursorY = y;
}
}
//========================================================================
// Callback function for scroll events
//========================================================================
void scroll_callback(GLFWwindow* window, double x, double y)
{
zoom += (float) y / 4.f;
if (zoom < 0)
zoom = 0;
}
//========================================================================
// Callback function for framebuffer resize events
//========================================================================
void framebuffer_size_callback(GLFWwindow* window, int width, int height)
{
float ratio = 1.f;
mat4x4 projection;
if (height > 0)
ratio = (float) width / (float) height;
// Setup viewport
glViewport(0, 0, width, height);
// Change to the projection matrix and set our viewing volume
glMatrixMode(GL_PROJECTION);
mat4x4_perspective(projection,
60.f * (float) M_PI / 180.f,
ratio,
1.f, 1024.f);
glLoadMatrixf((const GLfloat*) projection);
}
//========================================================================
// main
//========================================================================
int main(int argc, char* argv[])
{
GLFWwindow* window;
double t, dt_total, t_old;
int width, height;
glfwSetErrorCallback(error_callback);
if (!glfwInit())
exit(EXIT_FAILURE);
window = glfwCreateWindow(640, 480, "Wave Simulation", NULL, NULL);
if (!window)
{
glfwTerminate();
exit(EXIT_FAILURE);
}
glfwSetKeyCallback(window, key_callback);
glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);
glfwSetMouseButtonCallback(window, mouse_button_callback);
glfwSetCursorPosCallback(window, cursor_position_callback);
glfwSetScrollCallback(window, scroll_callback);
glfwMakeContextCurrent(window);
gladLoadGL(glfwGetProcAddress);
glfwSwapInterval(1);
glfwGetFramebufferSize(window, &width, &height);
framebuffer_size_callback(window, width, height);
// Initialize OpenGL
init_opengl();
// Initialize simulation
init_vertices();
init_grid();
adjust_grid();
// Initialize timer
t_old = glfwGetTime() - 0.01;
while (!glfwWindowShouldClose(window))
{
t = glfwGetTime();
dt_total = t - t_old;
t_old = t;
// Safety - iterate if dt_total is too large
while (dt_total > 0.f)
{
// Select iteration time step
dt = dt_total > MAX_DELTA_T ? MAX_DELTA_T : dt_total;
dt_total -= dt;
// Calculate wave propagation
calc_grid();
}
// Compute height of each vertex
adjust_grid();
// Draw wave grid to OpenGL display
draw_scene(window);
glfwPollEvents();
}
glfwTerminate();
exit(EXIT_SUCCESS);
}

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thirdparty/glfw/examples/windows.c vendored
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@ -1,106 +0,0 @@
//========================================================================
// Simple multi-window example
// Copyright (c) Camilla Löwy <elmindreda@glfw.org>
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would
// be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
// be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
//========================================================================
#define GLAD_GL_IMPLEMENTATION
#include <glad/gl.h>
#define GLFW_INCLUDE_NONE
#include <GLFW/glfw3.h>
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char** argv)
{
int xpos, ypos, height;
const char* description;
GLFWwindow* windows[4];
if (!glfwInit())
{
glfwGetError(&description);
printf("Error: %s\n", description);
exit(EXIT_FAILURE);
}
glfwWindowHint(GLFW_DECORATED, GLFW_FALSE);
glfwGetMonitorWorkarea(glfwGetPrimaryMonitor(), &xpos, &ypos, NULL, &height);
for (int i = 0; i < 4; i++)
{
const int size = height / 5;
const struct
{
float r, g, b;
} colors[] =
{
{ 0.95f, 0.32f, 0.11f },
{ 0.50f, 0.80f, 0.16f },
{ 0.f, 0.68f, 0.94f },
{ 0.98f, 0.74f, 0.04f }
};
if (i > 0)
glfwWindowHint(GLFW_FOCUS_ON_SHOW, GLFW_FALSE);
glfwWindowHint(GLFW_POSITION_X, xpos + size * (1 + (i & 1)));
glfwWindowHint(GLFW_POSITION_Y, ypos + size * (1 + (i >> 1)));
windows[i] = glfwCreateWindow(size, size, "Multi-Window Example", NULL, NULL);
if (!windows[i])
{
glfwGetError(&description);
printf("Error: %s\n", description);
glfwTerminate();
exit(EXIT_FAILURE);
}
glfwSetInputMode(windows[i], GLFW_STICKY_KEYS, GLFW_TRUE);
glfwMakeContextCurrent(windows[i]);
gladLoadGL(glfwGetProcAddress);
glClearColor(colors[i].r, colors[i].g, colors[i].b, 1.f);
}
for (;;)
{
for (int i = 0; i < 4; i++)
{
glfwMakeContextCurrent(windows[i]);
glClear(GL_COLOR_BUFFER_BIT);
glfwSwapBuffers(windows[i]);
if (glfwWindowShouldClose(windows[i]) ||
glfwGetKey(windows[i], GLFW_KEY_ESCAPE))
{
glfwTerminate();
exit(EXIT_SUCCESS);
}
}
glfwWaitEvents();
}
}

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thirdparty/glfw/include/GLFW/glfw3native.h vendored
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/*************************************************************************
* GLFW 3.5 - www.glfw.org
* A library for OpenGL, window and input
*------------------------------------------------------------------------
* Copyright (c) 2002-2006 Marcus Geelnard
* Copyright (c) 2006-2018 Camilla Löwy <elmindreda@glfw.org>
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would
* be appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not
* be misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any source
* distribution.
*
*************************************************************************/
#ifndef _glfw3_native_h_
#define _glfw3_native_h_
#ifdef __cplusplus
extern "C" {
#endif
/*************************************************************************
* Doxygen documentation
*************************************************************************/
/*! @file glfw3native.h
* @brief The header of the native access functions.
*
* This is the header file of the native access functions. See @ref native for
* more information.
*/
/*! @defgroup native Native access
* @brief Functions related to accessing native handles.
*
* **By using the native access functions you assert that you know what you're
* doing and how to fix problems caused by using them. If you don't, you
* shouldn't be using them.**
*
* Before the inclusion of @ref glfw3native.h, you may define zero or more
* window system API macro and zero or more context creation API macros.
*
* The chosen backends must match those the library was compiled for. Failure
* to do this will cause a link-time error.
*
* The available window API macros are:
* * `GLFW_EXPOSE_NATIVE_WIN32`
* * `GLFW_EXPOSE_NATIVE_COCOA`
* * `GLFW_EXPOSE_NATIVE_X11`
* * `GLFW_EXPOSE_NATIVE_WAYLAND`
*
* The available context API macros are:
* * `GLFW_EXPOSE_NATIVE_WGL`
* * `GLFW_EXPOSE_NATIVE_NSGL`
* * `GLFW_EXPOSE_NATIVE_GLX`
* * `GLFW_EXPOSE_NATIVE_EGL`
* * `GLFW_EXPOSE_NATIVE_OSMESA`
*
* These macros select which of the native access functions that are declared
* and which platform-specific headers to include. It is then up your (by
* definition platform-specific) code to handle which of these should be
* defined.
*
* If you do not want the platform-specific headers to be included, define
* `GLFW_NATIVE_INCLUDE_NONE` before including the @ref glfw3native.h header.
*
* @code
* #define GLFW_EXPOSE_NATIVE_WIN32
* #define GLFW_EXPOSE_NATIVE_WGL
* #define GLFW_NATIVE_INCLUDE_NONE
* #include <GLFW/glfw3native.h>
* @endcode
*/
/*************************************************************************
* System headers and types
*************************************************************************/
#if !defined(GLFW_NATIVE_INCLUDE_NONE)
#if defined(GLFW_EXPOSE_NATIVE_WIN32) || defined(GLFW_EXPOSE_NATIVE_WGL)
/* This is a workaround for the fact that glfw3.h needs to export APIENTRY (for
* example to allow applications to correctly declare a GL_KHR_debug callback)
* but windows.h assumes no one will define APIENTRY before it does
*/
#if defined(GLFW_APIENTRY_DEFINED)
#undef APIENTRY
#undef GLFW_APIENTRY_DEFINED
#endif
#include <windows.h>
#endif
#if defined(GLFW_EXPOSE_NATIVE_COCOA) || defined(GLFW_EXPOSE_NATIVE_NSGL)
#if defined(__OBJC__)
#import <Cocoa/Cocoa.h>
#else
#include <ApplicationServices/ApplicationServices.h>
#include <objc/objc.h>
#endif
#endif
#if defined(GLFW_EXPOSE_NATIVE_X11) || defined(GLFW_EXPOSE_NATIVE_GLX)
#include <X11/Xlib.h>
#include <X11/extensions/Xrandr.h>
#endif
#if defined(GLFW_EXPOSE_NATIVE_WAYLAND)
#include <wayland-client.h>
#endif
#if defined(GLFW_EXPOSE_NATIVE_WGL)
/* WGL is declared by windows.h */
#endif
#if defined(GLFW_EXPOSE_NATIVE_NSGL)
/* NSGL is declared by Cocoa.h */
#endif
#if defined(GLFW_EXPOSE_NATIVE_GLX)
/* This is a workaround for the fact that glfw3.h defines GLAPIENTRY because by
* default it also acts as an OpenGL header
* However, glx.h will include gl.h, which will define it unconditionally
*/
#if defined(GLFW_GLAPIENTRY_DEFINED)
#undef GLAPIENTRY
#undef GLFW_GLAPIENTRY_DEFINED
#endif
#include <GL/glx.h>
#endif
#if defined(GLFW_EXPOSE_NATIVE_EGL)
#include <EGL/egl.h>
#endif
#if defined(GLFW_EXPOSE_NATIVE_OSMESA)
/* This is a workaround for the fact that glfw3.h defines GLAPIENTRY because by
* default it also acts as an OpenGL header
* However, osmesa.h will include gl.h, which will define it unconditionally
*/
#if defined(GLFW_GLAPIENTRY_DEFINED)
#undef GLAPIENTRY
#undef GLFW_GLAPIENTRY_DEFINED
#endif
#include <GL/osmesa.h>
#endif
#endif /*GLFW_NATIVE_INCLUDE_NONE*/
/*************************************************************************
* Functions
*************************************************************************/
#if defined(GLFW_EXPOSE_NATIVE_WIN32)
/*! @brief Returns the adapter device name of the specified monitor.
*
* @return The UTF-8 encoded adapter device name (for example `\\.\DISPLAY1`)
* of the specified monitor, or `NULL` if an [error](@ref error_handling)
* occurred.
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
* GLFW_PLATFORM_UNAVAILABLE.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.1.
*
* @ingroup native
*/
GLFWAPI const char* glfwGetWin32Adapter(GLFWmonitor* monitor);
/*! @brief Returns the display device name of the specified monitor.
*
* @return The UTF-8 encoded display device name (for example
* `\\.\DISPLAY1\Monitor0`) of the specified monitor, or `NULL` if an
* [error](@ref error_handling) occurred.
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
* GLFW_PLATFORM_UNAVAILABLE.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.1.
*
* @ingroup native
*/
GLFWAPI const char* glfwGetWin32Monitor(GLFWmonitor* monitor);
/*! @brief Returns the `HWND` of the specified window.
*
* @return The `HWND` of the specified window, or `NULL` if an
* [error](@ref error_handling) occurred.
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
* GLFW_PLATFORM_UNAVAILABLE.
*
* @remark The `HDC` associated with the window can be queried with the
* [GetDC](https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-getdc)
* function.
* @code
* HDC dc = GetDC(glfwGetWin32Window(window));
* @endcode
* This DC is private and does not need to be released.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.0.
*
* @ingroup native
*/
GLFWAPI HWND glfwGetWin32Window(GLFWwindow* window);
#endif
#if defined(GLFW_EXPOSE_NATIVE_WGL)
/*! @brief Returns the `HGLRC` of the specified window.
*
* @return The `HGLRC` of the specified window, or `NULL` if an
* [error](@ref error_handling) occurred.
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
* GLFW_PLATFORM_UNAVAILABLE and @ref GLFW_NO_WINDOW_CONTEXT.
*
* @remark The `HDC` associated with the window can be queried with the
* [GetDC](https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-getdc)
* function.
* @code
* HDC dc = GetDC(glfwGetWin32Window(window));
* @endcode
* This DC is private and does not need to be released.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.0.
*
* @ingroup native
*/
GLFWAPI HGLRC glfwGetWGLContext(GLFWwindow* window);
#endif
#if defined(GLFW_EXPOSE_NATIVE_COCOA)
/*! @brief Returns the `CGDirectDisplayID` of the specified monitor.
*
* @return The `CGDirectDisplayID` of the specified monitor, or
* `kCGNullDirectDisplay` if an [error](@ref error_handling) occurred.
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
* GLFW_PLATFORM_UNAVAILABLE.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.1.
*
* @ingroup native
*/
GLFWAPI CGDirectDisplayID glfwGetCocoaMonitor(GLFWmonitor* monitor);
/*! @brief Returns the `NSWindow` of the specified window.
*
* @return The `NSWindow` of the specified window, or `nil` if an
* [error](@ref error_handling) occurred.
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
* GLFW_PLATFORM_UNAVAILABLE.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.0.
*
* @ingroup native
*/
GLFWAPI id glfwGetCocoaWindow(GLFWwindow* window);
/*! @brief Returns the `NSView` of the specified window.
*
* @return The `NSView` of the specified window, or `nil` if an
* [error](@ref error_handling) occurred.
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
* GLFW_PLATFORM_UNAVAILABLE.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.4.
*
* @ingroup native
*/
GLFWAPI id glfwGetCocoaView(GLFWwindow* window);
#endif
#if defined(GLFW_EXPOSE_NATIVE_NSGL)
/*! @brief Returns the `NSOpenGLContext` of the specified window.
*
* @return The `NSOpenGLContext` of the specified window, or `nil` if an
* [error](@ref error_handling) occurred.
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
* GLFW_PLATFORM_UNAVAILABLE and @ref GLFW_NO_WINDOW_CONTEXT.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.0.
*
* @ingroup native
*/
GLFWAPI id glfwGetNSGLContext(GLFWwindow* window);
#endif
#if defined(GLFW_EXPOSE_NATIVE_X11)
/*! @brief Returns the `Display` used by GLFW.
*
* @return The `Display` used by GLFW, or `NULL` if an
* [error](@ref error_handling) occurred.
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
* GLFW_PLATFORM_UNAVAILABLE.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.0.
*
* @ingroup native
*/
GLFWAPI Display* glfwGetX11Display(void);
/*! @brief Returns the `RRCrtc` of the specified monitor.
*
* @return The `RRCrtc` of the specified monitor, or `None` if an
* [error](@ref error_handling) occurred.
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
* GLFW_PLATFORM_UNAVAILABLE.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.1.
*
* @ingroup native
*/
GLFWAPI RRCrtc glfwGetX11Adapter(GLFWmonitor* monitor);
/*! @brief Returns the `RROutput` of the specified monitor.
*
* @return The `RROutput` of the specified monitor, or `None` if an
* [error](@ref error_handling) occurred.
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
* GLFW_PLATFORM_UNAVAILABLE.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.1.
*
* @ingroup native
*/
GLFWAPI RROutput glfwGetX11Monitor(GLFWmonitor* monitor);
/*! @brief Returns the `Window` of the specified window.
*
* @return The `Window` of the specified window, or `None` if an
* [error](@ref error_handling) occurred.
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
* GLFW_PLATFORM_UNAVAILABLE.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.0.
*
* @ingroup native
*/
GLFWAPI Window glfwGetX11Window(GLFWwindow* window);
/*! @brief Sets the current primary selection to the specified string.
*
* @param[in] string A UTF-8 encoded string.
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
* GLFW_PLATFORM_UNAVAILABLE and @ref GLFW_PLATFORM_ERROR.
*
* @pointer_lifetime The specified string is copied before this function
* returns.
*
* @thread_safety This function must only be called from the main thread.
*
* @sa @ref clipboard
* @sa glfwGetX11SelectionString
* @sa glfwSetClipboardString
*
* @since Added in version 3.3.
*
* @ingroup native
*/
GLFWAPI void glfwSetX11SelectionString(const char* string);
/*! @brief Returns the contents of the current primary selection as a string.
*
* If the selection is empty or if its contents cannot be converted, `NULL`
* is returned and a @ref GLFW_FORMAT_UNAVAILABLE error is generated.
*
* @return The contents of the selection as a UTF-8 encoded string, or `NULL`
* if an [error](@ref error_handling) occurred.
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
* GLFW_PLATFORM_UNAVAILABLE and @ref GLFW_PLATFORM_ERROR.
*
* @pointer_lifetime The returned string is allocated and freed by GLFW. You
* should not free it yourself. It is valid until the next call to @ref
* glfwGetX11SelectionString or @ref glfwSetX11SelectionString, or until the
* library is terminated.
*
* @thread_safety This function must only be called from the main thread.
*
* @sa @ref clipboard
* @sa glfwSetX11SelectionString
* @sa glfwGetClipboardString
*
* @since Added in version 3.3.
*
* @ingroup native
*/
GLFWAPI const char* glfwGetX11SelectionString(void);
#endif
#if defined(GLFW_EXPOSE_NATIVE_GLX)
/*! @brief Returns the `GLXContext` of the specified window.
*
* @return The `GLXContext` of the specified window, or `NULL` if an
* [error](@ref error_handling) occurred.
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
* GLFW_NO_WINDOW_CONTEXT and @ref GLFW_PLATFORM_UNAVAILABLE.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.0.
*
* @ingroup native
*/
GLFWAPI GLXContext glfwGetGLXContext(GLFWwindow* window);
/*! @brief Returns the `GLXWindow` of the specified window.
*
* @return The `GLXWindow` of the specified window, or `None` if an
* [error](@ref error_handling) occurred.
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
* GLFW_NO_WINDOW_CONTEXT and @ref GLFW_PLATFORM_UNAVAILABLE.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.2.
*
* @ingroup native
*/
GLFWAPI GLXWindow glfwGetGLXWindow(GLFWwindow* window);
#endif
#if defined(GLFW_EXPOSE_NATIVE_WAYLAND)
/*! @brief Returns the `struct wl_display*` used by GLFW.
*
* @return The `struct wl_display*` used by GLFW, or `NULL` if an
* [error](@ref error_handling) occurred.
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
* GLFW_PLATFORM_UNAVAILABLE.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.2.
*
* @ingroup native
*/
GLFWAPI struct wl_display* glfwGetWaylandDisplay(void);
/*! @brief Returns the `struct wl_output*` of the specified monitor.
*
* @return The `struct wl_output*` of the specified monitor, or `NULL` if an
* [error](@ref error_handling) occurred.
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
* GLFW_PLATFORM_UNAVAILABLE.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.2.
*
* @ingroup native
*/
GLFWAPI struct wl_output* glfwGetWaylandMonitor(GLFWmonitor* monitor);
/*! @brief Returns the main `struct wl_surface*` of the specified window.
*
* @return The main `struct wl_surface*` of the specified window, or `NULL` if
* an [error](@ref error_handling) occurred.
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
* GLFW_PLATFORM_UNAVAILABLE.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.2.
*
* @ingroup native
*/
GLFWAPI struct wl_surface* glfwGetWaylandWindow(GLFWwindow* window);
#endif
#if defined(GLFW_EXPOSE_NATIVE_EGL)
/*! @brief Returns the `EGLDisplay` used by GLFW.
*
* @return The `EGLDisplay` used by GLFW, or `EGL_NO_DISPLAY` if an
* [error](@ref error_handling) occurred.
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
*
* @remark Because EGL is initialized on demand, this function will return
* `EGL_NO_DISPLAY` until the first context has been created via EGL.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.0.
*
* @ingroup native
*/
GLFWAPI EGLDisplay glfwGetEGLDisplay(void);
/*! @brief Returns the `EGLContext` of the specified window.
*
* @return The `EGLContext` of the specified window, or `EGL_NO_CONTEXT` if an
* [error](@ref error_handling) occurred.
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
* GLFW_NO_WINDOW_CONTEXT.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.0.
*
* @ingroup native
*/
GLFWAPI EGLContext glfwGetEGLContext(GLFWwindow* window);
/*! @brief Returns the `EGLSurface` of the specified window.
*
* @return The `EGLSurface` of the specified window, or `EGL_NO_SURFACE` if an
* [error](@ref error_handling) occurred.
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
* GLFW_NO_WINDOW_CONTEXT.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.0.
*
* @ingroup native
*/
GLFWAPI EGLSurface glfwGetEGLSurface(GLFWwindow* window);
#endif
#if defined(GLFW_EXPOSE_NATIVE_OSMESA)
/*! @brief Retrieves the color buffer associated with the specified window.
*
* @param[in] window The window whose color buffer to retrieve.
* @param[out] width Where to store the width of the color buffer, or `NULL`.
* @param[out] height Where to store the height of the color buffer, or `NULL`.
* @param[out] format Where to store the OSMesa pixel format of the color
* buffer, or `NULL`.
* @param[out] buffer Where to store the address of the color buffer, or
* `NULL`.
* @return `GLFW_TRUE` if successful, or `GLFW_FALSE` if an
* [error](@ref error_handling) occurred.
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
* GLFW_NO_WINDOW_CONTEXT.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.3.
*
* @ingroup native
*/
GLFWAPI int glfwGetOSMesaColorBuffer(GLFWwindow* window, int* width, int* height, int* format, void** buffer);
/*! @brief Retrieves the depth buffer associated with the specified window.
*
* @param[in] window The window whose depth buffer to retrieve.
* @param[out] width Where to store the width of the depth buffer, or `NULL`.
* @param[out] height Where to store the height of the depth buffer, or `NULL`.
* @param[out] bytesPerValue Where to store the number of bytes per depth
* buffer element, or `NULL`.
* @param[out] buffer Where to store the address of the depth buffer, or
* `NULL`.
* @return `GLFW_TRUE` if successful, or `GLFW_FALSE` if an
* [error](@ref error_handling) occurred.
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
* GLFW_NO_WINDOW_CONTEXT.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.3.
*
* @ingroup native
*/
GLFWAPI int glfwGetOSMesaDepthBuffer(GLFWwindow* window, int* width, int* height, int* bytesPerValue, void** buffer);
/*! @brief Returns the `OSMesaContext` of the specified window.
*
* @return The `OSMesaContext` of the specified window, or `NULL` if an
* [error](@ref error_handling) occurred.
*
* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
* GLFW_NO_WINDOW_CONTEXT.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.3.
*
* @ingroup native
*/
GLFWAPI OSMesaContext glfwGetOSMesaContext(GLFWwindow* window);
#endif
#ifdef __cplusplus
}
#endif
#endif /* _glfw3_native_h_ */

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thirdparty/glfw/src/CMakeLists.txt vendored
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@ -1,369 +0,0 @@
add_library(glfw ${GLFW_LIBRARY_TYPE}
"${GLFW_SOURCE_DIR}/include/GLFW/glfw3.h"
"${GLFW_SOURCE_DIR}/include/GLFW/glfw3native.h"
internal.h platform.h mappings.h
context.c init.c input.c monitor.c platform.c vulkan.c window.c
egl_context.c osmesa_context.c null_platform.h null_joystick.h
null_init.c null_monitor.c null_window.c null_joystick.c)
# The time, thread and module code is shared between all backends on a given OS,
# including the null backend, which still needs those bits to be functional
if (APPLE)
target_sources(glfw PRIVATE cocoa_time.h cocoa_time.c posix_thread.h
posix_module.c posix_thread.c)
elseif (WIN32)
target_sources(glfw PRIVATE win32_time.h win32_thread.h win32_module.c
win32_time.c win32_thread.c)
else()
target_sources(glfw PRIVATE posix_time.h posix_thread.h posix_module.c
posix_time.c posix_thread.c)
endif()
add_custom_target(update_mappings
COMMAND "${CMAKE_COMMAND}" -P "${GLFW_SOURCE_DIR}/CMake/GenerateMappings.cmake" mappings.h.in mappings.h
WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
COMMENT "Updating gamepad mappings from upstream repository"
SOURCES mappings.h.in "${GLFW_SOURCE_DIR}/CMake/GenerateMappings.cmake"
VERBATIM)
set_target_properties(update_mappings PROPERTIES FOLDER "GLFW3")
if (GLFW_BUILD_COCOA)
target_compile_definitions(glfw PRIVATE _GLFW_COCOA)
target_sources(glfw PRIVATE cocoa_platform.h cocoa_joystick.h cocoa_init.m
cocoa_joystick.m cocoa_monitor.m cocoa_window.m
nsgl_context.m)
endif()
if (GLFW_BUILD_WIN32)
target_compile_definitions(glfw PRIVATE _GLFW_WIN32)
target_sources(glfw PRIVATE win32_platform.h win32_joystick.h win32_init.c
win32_joystick.c win32_monitor.c win32_window.c
wgl_context.c)
endif()
if (GLFW_BUILD_X11)
target_compile_definitions(glfw PRIVATE _GLFW_X11)
target_sources(glfw PRIVATE x11_platform.h xkb_unicode.h x11_init.c
x11_monitor.c x11_window.c xkb_unicode.c
glx_context.c)
endif()
if (GLFW_BUILD_WAYLAND)
target_compile_definitions(glfw PRIVATE _GLFW_WAYLAND)
target_sources(glfw PRIVATE wl_platform.h xkb_unicode.h wl_init.c
wl_monitor.c wl_window.c xkb_unicode.c)
endif()
if (GLFW_BUILD_X11 OR GLFW_BUILD_WAYLAND)
if (CMAKE_SYSTEM_NAME STREQUAL "Linux")
target_sources(glfw PRIVATE linux_joystick.h linux_joystick.c)
endif()
target_sources(glfw PRIVATE posix_poll.h posix_poll.c)
endif()
if (GLFW_BUILD_WAYLAND)
include(CheckIncludeFiles)
include(CheckFunctionExists)
check_function_exists(memfd_create HAVE_MEMFD_CREATE)
if (HAVE_MEMFD_CREATE)
target_compile_definitions(glfw PRIVATE HAVE_MEMFD_CREATE)
endif()
find_program(WAYLAND_SCANNER_EXECUTABLE NAMES wayland-scanner)
if (NOT WAYLAND_SCANNER_EXECUTABLE)
message(FATAL_ERROR "Failed to find wayland-scanner")
endif()
macro(generate_wayland_protocol protocol_file)
set(protocol_path "${GLFW_SOURCE_DIR}/deps/wayland/${protocol_file}")
string(REGEX REPLACE "\\.xml$" "-client-protocol.h" header_file ${protocol_file})
string(REGEX REPLACE "\\.xml$" "-client-protocol-code.h" code_file ${protocol_file})
add_custom_command(OUTPUT ${header_file}
COMMAND "${WAYLAND_SCANNER_EXECUTABLE}" client-header "${protocol_path}" ${header_file}
DEPENDS "${protocol_path}"
VERBATIM)
add_custom_command(OUTPUT ${code_file}
COMMAND "${WAYLAND_SCANNER_EXECUTABLE}" private-code "${protocol_path}" ${code_file}
DEPENDS "${protocol_path}"
VERBATIM)
target_sources(glfw PRIVATE ${header_file} ${code_file})
endmacro()
generate_wayland_protocol("wayland.xml")
generate_wayland_protocol("viewporter.xml")
generate_wayland_protocol("xdg-shell.xml")
generate_wayland_protocol("idle-inhibit-unstable-v1.xml")
generate_wayland_protocol("pointer-constraints-unstable-v1.xml")
generate_wayland_protocol("relative-pointer-unstable-v1.xml")
generate_wayland_protocol("fractional-scale-v1.xml")
generate_wayland_protocol("xdg-activation-v1.xml")
generate_wayland_protocol("xdg-decoration-unstable-v1.xml")
endif()
if (WIN32 AND GLFW_BUILD_SHARED_LIBRARY)
configure_file(glfw.rc.in glfw.rc @ONLY)
target_sources(glfw PRIVATE "${CMAKE_CURRENT_BINARY_DIR}/glfw.rc")
endif()
if (UNIX AND GLFW_BUILD_SHARED_LIBRARY)
# On Unix-like systems, shared libraries can use the soname system.
set(GLFW_LIB_NAME glfw)
else()
set(GLFW_LIB_NAME glfw3)
endif()
set(GLFW_LIB_NAME_SUFFIX "")
set_target_properties(glfw PROPERTIES
OUTPUT_NAME ${GLFW_LIB_NAME}
VERSION ${GLFW_VERSION_MAJOR}.${GLFW_VERSION_MINOR}
SOVERSION ${GLFW_VERSION_MAJOR}
POSITION_INDEPENDENT_CODE ON
C_STANDARD 99
C_EXTENSIONS OFF
DEFINE_SYMBOL _GLFW_BUILD_DLL
FOLDER "GLFW3")
target_include_directories(glfw PUBLIC
"$<BUILD_INTERFACE:${GLFW_SOURCE_DIR}/include>"
"$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>")
target_include_directories(glfw PRIVATE
"${GLFW_SOURCE_DIR}/src"
"${GLFW_BINARY_DIR}/src")
target_link_libraries(glfw PRIVATE Threads::Threads)
# Workaround for CMake not knowing about .m files before version 3.16
if (CMAKE_VERSION VERSION_LESS "3.16" AND APPLE)
set_source_files_properties(cocoa_init.m cocoa_joystick.m cocoa_monitor.m
cocoa_window.m nsgl_context.m PROPERTIES
LANGUAGE C)
endif()
if (GLFW_BUILD_WIN32)
list(APPEND glfw_PKG_LIBS "-lgdi32")
endif()
if (GLFW_BUILD_COCOA)
target_link_libraries(glfw PRIVATE "-framework Cocoa"
"-framework IOKit"
"-framework CoreFoundation"
"-framework QuartzCore")
set(glfw_PKG_DEPS "")
set(glfw_PKG_LIBS "-framework Cocoa -framework IOKit -framework CoreFoundation -framework QuartzCore")
endif()
if (GLFW_BUILD_WAYLAND)
include(FindPkgConfig)
pkg_check_modules(Wayland REQUIRED
wayland-client>=0.2.7
wayland-cursor>=0.2.7
wayland-egl>=0.2.7
xkbcommon>=0.5.0)
target_include_directories(glfw PRIVATE ${Wayland_INCLUDE_DIRS})
if (NOT CMAKE_SYSTEM_NAME STREQUAL "Linux")
find_package(EpollShim)
if (EPOLLSHIM_FOUND)
target_include_directories(glfw PRIVATE ${EPOLLSHIM_INCLUDE_DIRS})
target_link_libraries(glfw PRIVATE ${EPOLLSHIM_LIBRARIES})
endif()
endif()
endif()
if (GLFW_BUILD_X11)
find_package(X11 REQUIRED)
target_include_directories(glfw PRIVATE "${X11_X11_INCLUDE_PATH}")
# Check for XRandR (modern resolution switching and gamma control)
if (NOT X11_Xrandr_INCLUDE_PATH)
message(FATAL_ERROR "RandR headers not found; install libxrandr development package")
endif()
target_include_directories(glfw PRIVATE "${X11_Xrandr_INCLUDE_PATH}")
# Check for Xinerama (legacy multi-monitor support)
if (NOT X11_Xinerama_INCLUDE_PATH)
message(FATAL_ERROR "Xinerama headers not found; install libxinerama development package")
endif()
target_include_directories(glfw PRIVATE "${X11_Xinerama_INCLUDE_PATH}")
# Check for Xkb (X keyboard extension)
if (NOT X11_Xkb_INCLUDE_PATH)
message(FATAL_ERROR "XKB headers not found; install X11 development package")
endif()
target_include_directories(glfw PRIVATE "${X11_Xkb_INCLUDE_PATH}")
# Check for Xcursor (cursor creation from RGBA images)
if (NOT X11_Xcursor_INCLUDE_PATH)
message(FATAL_ERROR "Xcursor headers not found; install libxcursor development package")
endif()
target_include_directories(glfw PRIVATE "${X11_Xcursor_INCLUDE_PATH}")
# Check for XInput (modern HID input)
if (NOT X11_Xi_INCLUDE_PATH)
message(FATAL_ERROR "XInput headers not found; install libxi development package")
endif()
target_include_directories(glfw PRIVATE "${X11_Xi_INCLUDE_PATH}")
# Check for X Shape (custom window input shape)
if (NOT X11_Xshape_INCLUDE_PATH)
message(FATAL_ERROR "X Shape headers not found; install libxext development package")
endif()
target_include_directories(glfw PRIVATE "${X11_Xshape_INCLUDE_PATH}")
endif()
if (UNIX AND NOT APPLE)
find_library(RT_LIBRARY rt)
mark_as_advanced(RT_LIBRARY)
if (RT_LIBRARY)
target_link_libraries(glfw PRIVATE "${RT_LIBRARY}")
list(APPEND glfw_PKG_LIBS "-lrt")
endif()
find_library(MATH_LIBRARY m)
mark_as_advanced(MATH_LIBRARY)
if (MATH_LIBRARY)
target_link_libraries(glfw PRIVATE "${MATH_LIBRARY}")
list(APPEND glfw_PKG_LIBS "-lm")
endif()
if (CMAKE_DL_LIBS)
target_link_libraries(glfw PRIVATE "${CMAKE_DL_LIBS}")
list(APPEND glfw_PKG_LIBS "-l${CMAKE_DL_LIBS}")
endif()
endif()
if (WIN32)
if (GLFW_USE_HYBRID_HPG)
target_compile_definitions(glfw PRIVATE _GLFW_USE_HYBRID_HPG)
endif()
endif()
# Enable a reasonable set of warnings
# NOTE: The order matters here, Clang-CL matches both MSVC and Clang
if (MSVC)
target_compile_options(glfw PRIVATE "/W3")
elseif (CMAKE_C_COMPILER_ID STREQUAL "GNU" OR
CMAKE_C_COMPILER_ID STREQUAL "Clang" OR
CMAKE_C_COMPILER_ID STREQUAL "AppleClang")
target_compile_options(glfw PRIVATE "-Wall")
endif()
if (GLFW_BUILD_WIN32)
target_compile_definitions(glfw PRIVATE UNICODE _UNICODE)
endif()
# HACK: When building on MinGW, WINVER and UNICODE need to be defined before
# the inclusion of stddef.h (by glfw3.h), which is itself included before
# win32_platform.h. We define them here until a saner solution can be found
# NOTE: MinGW-w64 and Visual C++ do /not/ need this hack.
if (MINGW)
target_compile_definitions(glfw PRIVATE WINVER=0x0501)
endif()
# Workaround for legacy MinGW not providing XInput and DirectInput
if (MINGW)
include(CheckIncludeFile)
check_include_file(dinput.h DINPUT_H_FOUND)
check_include_file(xinput.h XINPUT_H_FOUND)
if (NOT DINPUT_H_FOUND OR NOT XINPUT_H_FOUND)
target_include_directories(glfw PRIVATE "${GLFW_SOURCE_DIR}/deps/mingw")
endif()
endif()
# Workaround for the MS CRT deprecating parts of the standard library
if (MSVC OR CMAKE_C_SIMULATE_ID STREQUAL "MSVC")
target_compile_definitions(glfw PRIVATE _CRT_SECURE_NO_WARNINGS)
endif()
# Workaround for -std=c99 on Linux disabling _DEFAULT_SOURCE (POSIX 2008 and more)
if (CMAKE_SYSTEM_NAME STREQUAL "Linux")
target_compile_definitions(glfw PRIVATE _DEFAULT_SOURCE)
endif()
if (GLFW_BUILD_SHARED_LIBRARY)
if (WIN32)
if (MINGW)
# Remove the dependency on the shared version of libgcc
# NOTE: MinGW-w64 has the correct default but MinGW needs this
target_link_libraries(glfw PRIVATE "-static-libgcc")
# Remove the lib prefix on the DLL (but not the import library)
set_target_properties(glfw PROPERTIES PREFIX "")
# Add a suffix to the import library to avoid naming conflicts
set_target_properties(glfw PROPERTIES IMPORT_SUFFIX "dll.a")
else()
# Add a suffix to the import library to avoid naming conflicts
set_target_properties(glfw PROPERTIES IMPORT_SUFFIX "dll.lib")
endif()
set (GLFW_LIB_NAME_SUFFIX "dll")
target_compile_definitions(glfw INTERFACE GLFW_DLL)
endif()
if (MINGW)
# Enable link-time exploit mitigation features enabled by default on MSVC
include(CheckCCompilerFlag)
# Compatibility with data execution prevention (DEP)
set(CMAKE_REQUIRED_FLAGS "-Wl,--nxcompat")
check_c_compiler_flag("" _GLFW_HAS_DEP)
if (_GLFW_HAS_DEP)
target_link_libraries(glfw PRIVATE "-Wl,--nxcompat")
endif()
# Compatibility with address space layout randomization (ASLR)
set(CMAKE_REQUIRED_FLAGS "-Wl,--dynamicbase")
check_c_compiler_flag("" _GLFW_HAS_ASLR)
if (_GLFW_HAS_ASLR)
target_link_libraries(glfw PRIVATE "-Wl,--dynamicbase")
endif()
# Compatibility with 64-bit address space layout randomization (ASLR)
set(CMAKE_REQUIRED_FLAGS "-Wl,--high-entropy-va")
check_c_compiler_flag("" _GLFW_HAS_64ASLR)
if (_GLFW_HAS_64ASLR)
target_link_libraries(glfw PRIVATE "-Wl,--high-entropy-va")
endif()
# Clear flags again to avoid breaking later tests
set(CMAKE_REQUIRED_FLAGS)
endif()
if (UNIX)
# Hide symbols not explicitly tagged for export from the shared library
target_compile_options(glfw PRIVATE "-fvisibility=hidden")
endif()
endif()
foreach(arg ${glfw_PKG_DEPS})
string(APPEND deps " ${arg}")
endforeach()
foreach(arg ${glfw_PKG_LIBS})
string(APPEND libs " ${arg}")
endforeach()
set(GLFW_PKG_CONFIG_REQUIRES_PRIVATE "${deps}" CACHE INTERNAL
"GLFW pkg-config Requires.private")
set(GLFW_PKG_CONFIG_LIBS_PRIVATE "${libs}" CACHE INTERNAL
"GLFW pkg-config Libs.private")
configure_file("${GLFW_SOURCE_DIR}/CMake/glfw3.pc.in" glfw3.pc @ONLY)
if (GLFW_INSTALL)
install(TARGETS glfw
EXPORT glfwTargets
RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}")
endif()

695
thirdparty/glfw/src/cocoa_init.m vendored
View File

@ -1,695 +0,0 @@
//========================================================================
// GLFW 3.5 macOS - www.glfw.org
//------------------------------------------------------------------------
// Copyright (c) 2009-2019 Camilla Löwy <elmindreda@glfw.org>
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would
// be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
// be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
//========================================================================
#include "internal.h"
#if defined(_GLFW_COCOA)
#include <sys/param.h> // For MAXPATHLEN
// Needed for _NSGetProgname
#include <crt_externs.h>
// Change to our application bundle's resources directory, if present
//
static void changeToResourcesDirectory(void)
{
char resourcesPath[MAXPATHLEN];
CFBundleRef bundle = CFBundleGetMainBundle();
if (!bundle)
return;
CFURLRef resourcesURL = CFBundleCopyResourcesDirectoryURL(bundle);
CFStringRef last = CFURLCopyLastPathComponent(resourcesURL);
if (CFStringCompare(CFSTR("Resources"), last, 0) != kCFCompareEqualTo)
{
CFRelease(last);
CFRelease(resourcesURL);
return;
}
CFRelease(last);
if (!CFURLGetFileSystemRepresentation(resourcesURL,
true,
(UInt8*) resourcesPath,
MAXPATHLEN))
{
CFRelease(resourcesURL);
return;
}
CFRelease(resourcesURL);
chdir(resourcesPath);
}
// Set up the menu bar (manually)
// This is nasty, nasty stuff -- calls to undocumented semi-private APIs that
// could go away at any moment, lots of stuff that really should be
// localize(d|able), etc. Add a nib to save us this horror.
//
static void createMenuBar(void)
{
NSString* appName = nil;
NSDictionary* bundleInfo = [[NSBundle mainBundle] infoDictionary];
NSString* nameKeys[] =
{
@"CFBundleDisplayName",
@"CFBundleName",
@"CFBundleExecutable",
};
// Try to figure out what the calling application is called
for (size_t i = 0; i < sizeof(nameKeys) / sizeof(nameKeys[0]); i++)
{
id name = bundleInfo[nameKeys[i]];
if (name &&
[name isKindOfClass:[NSString class]] &&
![name isEqualToString:@""])
{
appName = name;
break;
}
}
if (!appName)
{
char** progname = _NSGetProgname();
if (progname && *progname)
appName = @(*progname);
else
appName = @"GLFW Application";
}
NSMenu* bar = [[NSMenu alloc] init];
[NSApp setMainMenu:bar];
NSMenuItem* appMenuItem =
[bar addItemWithTitle:@"" action:NULL keyEquivalent:@""];
NSMenu* appMenu = [[NSMenu alloc] init];
[appMenuItem setSubmenu:appMenu];
[appMenu addItemWithTitle:[NSString stringWithFormat:@"About %@", appName]
action:@selector(orderFrontStandardAboutPanel:)
keyEquivalent:@""];
[appMenu addItem:[NSMenuItem separatorItem]];
NSMenu* servicesMenu = [[NSMenu alloc] init];
[NSApp setServicesMenu:servicesMenu];
[[appMenu addItemWithTitle:@"Services"
action:NULL
keyEquivalent:@""] setSubmenu:servicesMenu];
[servicesMenu release];
[appMenu addItem:[NSMenuItem separatorItem]];
[appMenu addItemWithTitle:[NSString stringWithFormat:@"Hide %@", appName]
action:@selector(hide:)
keyEquivalent:@"h"];
[[appMenu addItemWithTitle:@"Hide Others"
action:@selector(hideOtherApplications:)
keyEquivalent:@"h"]
setKeyEquivalentModifierMask:NSEventModifierFlagOption | NSEventModifierFlagCommand];
[appMenu addItemWithTitle:@"Show All"
action:@selector(unhideAllApplications:)
keyEquivalent:@""];
[appMenu addItem:[NSMenuItem separatorItem]];
[appMenu addItemWithTitle:[NSString stringWithFormat:@"Quit %@", appName]
action:@selector(terminate:)
keyEquivalent:@"q"];
NSMenuItem* windowMenuItem =
[bar addItemWithTitle:@"" action:NULL keyEquivalent:@""];
[bar release];
NSMenu* windowMenu = [[NSMenu alloc] initWithTitle:@"Window"];
[NSApp setWindowsMenu:windowMenu];
[windowMenuItem setSubmenu:windowMenu];
[windowMenu addItemWithTitle:@"Minimize"
action:@selector(performMiniaturize:)
keyEquivalent:@"m"];
[windowMenu addItemWithTitle:@"Zoom"
action:@selector(performZoom:)
keyEquivalent:@""];
[windowMenu addItem:[NSMenuItem separatorItem]];
[windowMenu addItemWithTitle:@"Bring All to Front"
action:@selector(arrangeInFront:)
keyEquivalent:@""];
// TODO: Make this appear at the bottom of the menu (for consistency)
[windowMenu addItem:[NSMenuItem separatorItem]];
[[windowMenu addItemWithTitle:@"Enter Full Screen"
action:@selector(toggleFullScreen:)
keyEquivalent:@"f"]
setKeyEquivalentModifierMask:NSEventModifierFlagControl | NSEventModifierFlagCommand];
// Prior to Snow Leopard, we need to use this oddly-named semi-private API
// to get the application menu working properly.
SEL setAppleMenuSelector = NSSelectorFromString(@"setAppleMenu:");
[NSApp performSelector:setAppleMenuSelector withObject:appMenu];
}
// Create key code translation tables
//
static void createKeyTables(void)
{
memset(_glfw.ns.keycodes, -1, sizeof(_glfw.ns.keycodes));
memset(_glfw.ns.scancodes, -1, sizeof(_glfw.ns.scancodes));
_glfw.ns.keycodes[0x1D] = GLFW_KEY_0;
_glfw.ns.keycodes[0x12] = GLFW_KEY_1;
_glfw.ns.keycodes[0x13] = GLFW_KEY_2;
_glfw.ns.keycodes[0x14] = GLFW_KEY_3;
_glfw.ns.keycodes[0x15] = GLFW_KEY_4;
_glfw.ns.keycodes[0x17] = GLFW_KEY_5;
_glfw.ns.keycodes[0x16] = GLFW_KEY_6;
_glfw.ns.keycodes[0x1A] = GLFW_KEY_7;
_glfw.ns.keycodes[0x1C] = GLFW_KEY_8;
_glfw.ns.keycodes[0x19] = GLFW_KEY_9;
_glfw.ns.keycodes[0x00] = GLFW_KEY_A;
_glfw.ns.keycodes[0x0B] = GLFW_KEY_B;
_glfw.ns.keycodes[0x08] = GLFW_KEY_C;
_glfw.ns.keycodes[0x02] = GLFW_KEY_D;
_glfw.ns.keycodes[0x0E] = GLFW_KEY_E;
_glfw.ns.keycodes[0x03] = GLFW_KEY_F;
_glfw.ns.keycodes[0x05] = GLFW_KEY_G;
_glfw.ns.keycodes[0x04] = GLFW_KEY_H;
_glfw.ns.keycodes[0x22] = GLFW_KEY_I;
_glfw.ns.keycodes[0x26] = GLFW_KEY_J;
_glfw.ns.keycodes[0x28] = GLFW_KEY_K;
_glfw.ns.keycodes[0x25] = GLFW_KEY_L;
_glfw.ns.keycodes[0x2E] = GLFW_KEY_M;
_glfw.ns.keycodes[0x2D] = GLFW_KEY_N;
_glfw.ns.keycodes[0x1F] = GLFW_KEY_O;
_glfw.ns.keycodes[0x23] = GLFW_KEY_P;
_glfw.ns.keycodes[0x0C] = GLFW_KEY_Q;
_glfw.ns.keycodes[0x0F] = GLFW_KEY_R;
_glfw.ns.keycodes[0x01] = GLFW_KEY_S;
_glfw.ns.keycodes[0x11] = GLFW_KEY_T;
_glfw.ns.keycodes[0x20] = GLFW_KEY_U;
_glfw.ns.keycodes[0x09] = GLFW_KEY_V;
_glfw.ns.keycodes[0x0D] = GLFW_KEY_W;
_glfw.ns.keycodes[0x07] = GLFW_KEY_X;
_glfw.ns.keycodes[0x10] = GLFW_KEY_Y;
_glfw.ns.keycodes[0x06] = GLFW_KEY_Z;
_glfw.ns.keycodes[0x27] = GLFW_KEY_APOSTROPHE;
_glfw.ns.keycodes[0x2A] = GLFW_KEY_BACKSLASH;
_glfw.ns.keycodes[0x2B] = GLFW_KEY_COMMA;
_glfw.ns.keycodes[0x18] = GLFW_KEY_EQUAL;
_glfw.ns.keycodes[0x32] = GLFW_KEY_GRAVE_ACCENT;
_glfw.ns.keycodes[0x21] = GLFW_KEY_LEFT_BRACKET;
_glfw.ns.keycodes[0x1B] = GLFW_KEY_MINUS;
_glfw.ns.keycodes[0x2F] = GLFW_KEY_PERIOD;
_glfw.ns.keycodes[0x1E] = GLFW_KEY_RIGHT_BRACKET;
_glfw.ns.keycodes[0x29] = GLFW_KEY_SEMICOLON;
_glfw.ns.keycodes[0x2C] = GLFW_KEY_SLASH;
_glfw.ns.keycodes[0x0A] = GLFW_KEY_WORLD_1;
_glfw.ns.keycodes[0x33] = GLFW_KEY_BACKSPACE;
_glfw.ns.keycodes[0x39] = GLFW_KEY_CAPS_LOCK;
_glfw.ns.keycodes[0x75] = GLFW_KEY_DELETE;
_glfw.ns.keycodes[0x7D] = GLFW_KEY_DOWN;
_glfw.ns.keycodes[0x77] = GLFW_KEY_END;
_glfw.ns.keycodes[0x24] = GLFW_KEY_ENTER;
_glfw.ns.keycodes[0x35] = GLFW_KEY_ESCAPE;
_glfw.ns.keycodes[0x7A] = GLFW_KEY_F1;
_glfw.ns.keycodes[0x78] = GLFW_KEY_F2;
_glfw.ns.keycodes[0x63] = GLFW_KEY_F3;
_glfw.ns.keycodes[0x76] = GLFW_KEY_F4;
_glfw.ns.keycodes[0x60] = GLFW_KEY_F5;
_glfw.ns.keycodes[0x61] = GLFW_KEY_F6;
_glfw.ns.keycodes[0x62] = GLFW_KEY_F7;
_glfw.ns.keycodes[0x64] = GLFW_KEY_F8;
_glfw.ns.keycodes[0x65] = GLFW_KEY_F9;
_glfw.ns.keycodes[0x6D] = GLFW_KEY_F10;
_glfw.ns.keycodes[0x67] = GLFW_KEY_F11;
_glfw.ns.keycodes[0x6F] = GLFW_KEY_F12;
_glfw.ns.keycodes[0x69] = GLFW_KEY_PRINT_SCREEN;
_glfw.ns.keycodes[0x6B] = GLFW_KEY_F14;
_glfw.ns.keycodes[0x71] = GLFW_KEY_F15;
_glfw.ns.keycodes[0x6A] = GLFW_KEY_F16;
_glfw.ns.keycodes[0x40] = GLFW_KEY_F17;
_glfw.ns.keycodes[0x4F] = GLFW_KEY_F18;
_glfw.ns.keycodes[0x50] = GLFW_KEY_F19;
_glfw.ns.keycodes[0x5A] = GLFW_KEY_F20;
_glfw.ns.keycodes[0x73] = GLFW_KEY_HOME;
_glfw.ns.keycodes[0x72] = GLFW_KEY_INSERT;
_glfw.ns.keycodes[0x7B] = GLFW_KEY_LEFT;
_glfw.ns.keycodes[0x3A] = GLFW_KEY_LEFT_ALT;
_glfw.ns.keycodes[0x3B] = GLFW_KEY_LEFT_CONTROL;
_glfw.ns.keycodes[0x38] = GLFW_KEY_LEFT_SHIFT;
_glfw.ns.keycodes[0x37] = GLFW_KEY_LEFT_SUPER;
_glfw.ns.keycodes[0x6E] = GLFW_KEY_MENU;
_glfw.ns.keycodes[0x47] = GLFW_KEY_NUM_LOCK;
_glfw.ns.keycodes[0x79] = GLFW_KEY_PAGE_DOWN;
_glfw.ns.keycodes[0x74] = GLFW_KEY_PAGE_UP;
_glfw.ns.keycodes[0x7C] = GLFW_KEY_RIGHT;
_glfw.ns.keycodes[0x3D] = GLFW_KEY_RIGHT_ALT;
_glfw.ns.keycodes[0x3E] = GLFW_KEY_RIGHT_CONTROL;
_glfw.ns.keycodes[0x3C] = GLFW_KEY_RIGHT_SHIFT;
_glfw.ns.keycodes[0x36] = GLFW_KEY_RIGHT_SUPER;
_glfw.ns.keycodes[0x31] = GLFW_KEY_SPACE;
_glfw.ns.keycodes[0x30] = GLFW_KEY_TAB;
_glfw.ns.keycodes[0x7E] = GLFW_KEY_UP;
_glfw.ns.keycodes[0x52] = GLFW_KEY_KP_0;
_glfw.ns.keycodes[0x53] = GLFW_KEY_KP_1;
_glfw.ns.keycodes[0x54] = GLFW_KEY_KP_2;
_glfw.ns.keycodes[0x55] = GLFW_KEY_KP_3;
_glfw.ns.keycodes[0x56] = GLFW_KEY_KP_4;
_glfw.ns.keycodes[0x57] = GLFW_KEY_KP_5;
_glfw.ns.keycodes[0x58] = GLFW_KEY_KP_6;
_glfw.ns.keycodes[0x59] = GLFW_KEY_KP_7;
_glfw.ns.keycodes[0x5B] = GLFW_KEY_KP_8;
_glfw.ns.keycodes[0x5C] = GLFW_KEY_KP_9;
_glfw.ns.keycodes[0x45] = GLFW_KEY_KP_ADD;
_glfw.ns.keycodes[0x41] = GLFW_KEY_KP_DECIMAL;
_glfw.ns.keycodes[0x4B] = GLFW_KEY_KP_DIVIDE;
_glfw.ns.keycodes[0x4C] = GLFW_KEY_KP_ENTER;
_glfw.ns.keycodes[0x51] = GLFW_KEY_KP_EQUAL;
_glfw.ns.keycodes[0x43] = GLFW_KEY_KP_MULTIPLY;
_glfw.ns.keycodes[0x4E] = GLFW_KEY_KP_SUBTRACT;
for (int scancode = 0; scancode < 256; scancode++)
{
// Store the reverse translation for faster key name lookup
if (_glfw.ns.keycodes[scancode] >= 0)
_glfw.ns.scancodes[_glfw.ns.keycodes[scancode]] = scancode;
}
}
// Retrieve Unicode data for the current keyboard layout
//
static GLFWbool updateUnicodeData(void)
{
if (_glfw.ns.inputSource)
{
CFRelease(_glfw.ns.inputSource);
_glfw.ns.inputSource = NULL;
_glfw.ns.unicodeData = nil;
}
_glfw.ns.inputSource = TISCopyCurrentKeyboardLayoutInputSource();
if (!_glfw.ns.inputSource)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Cocoa: Failed to retrieve keyboard layout input source");
return GLFW_FALSE;
}
_glfw.ns.unicodeData =
TISGetInputSourceProperty(_glfw.ns.inputSource,
kTISPropertyUnicodeKeyLayoutData);
if (!_glfw.ns.unicodeData)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Cocoa: Failed to retrieve keyboard layout Unicode data");
return GLFW_FALSE;
}
return GLFW_TRUE;
}
// Load HIToolbox.framework and the TIS symbols we need from it
//
static GLFWbool initializeTIS(void)
{
// This works only because Cocoa has already loaded it properly
_glfw.ns.tis.bundle =
CFBundleGetBundleWithIdentifier(CFSTR("com.apple.HIToolbox"));
if (!_glfw.ns.tis.bundle)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Cocoa: Failed to load HIToolbox.framework");
return GLFW_FALSE;
}
CFStringRef* kPropertyUnicodeKeyLayoutData =
CFBundleGetDataPointerForName(_glfw.ns.tis.bundle,
CFSTR("kTISPropertyUnicodeKeyLayoutData"));
_glfw.ns.tis.CopyCurrentKeyboardLayoutInputSource =
CFBundleGetFunctionPointerForName(_glfw.ns.tis.bundle,
CFSTR("TISCopyCurrentKeyboardLayoutInputSource"));
_glfw.ns.tis.GetInputSourceProperty =
CFBundleGetFunctionPointerForName(_glfw.ns.tis.bundle,
CFSTR("TISGetInputSourceProperty"));
_glfw.ns.tis.GetKbdType =
CFBundleGetFunctionPointerForName(_glfw.ns.tis.bundle,
CFSTR("LMGetKbdType"));
if (!kPropertyUnicodeKeyLayoutData ||
!TISCopyCurrentKeyboardLayoutInputSource ||
!TISGetInputSourceProperty ||
!LMGetKbdType)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Cocoa: Failed to load TIS API symbols");
return GLFW_FALSE;
}
_glfw.ns.tis.kPropertyUnicodeKeyLayoutData =
*kPropertyUnicodeKeyLayoutData;
return updateUnicodeData();
}
@interface GLFWHelper : NSObject
@end
@implementation GLFWHelper
- (void)selectedKeyboardInputSourceChanged:(NSObject* )object
{
updateUnicodeData();
}
- (void)doNothing:(id)object
{
}
@end // GLFWHelper
@interface GLFWApplicationDelegate : NSObject <NSApplicationDelegate>
@end
@implementation GLFWApplicationDelegate
- (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication *)sender
{
for (_GLFWwindow* window = _glfw.windowListHead; window; window = window->next)
_glfwInputWindowCloseRequest(window);
return NSTerminateCancel;
}
- (void)applicationDidChangeScreenParameters:(NSNotification *) notification
{
for (_GLFWwindow* window = _glfw.windowListHead; window; window = window->next)
{
if (window->context.client != GLFW_NO_API)
[window->context.nsgl.object update];
}
_glfwPollMonitorsCocoa();
}
- (void)applicationWillFinishLaunching:(NSNotification *)notification
{
if (_glfw.hints.init.ns.menubar)
{
// Menu bar setup must go between sharedApplication and finishLaunching
// in order to properly emulate the behavior of NSApplicationMain
if ([[NSBundle mainBundle] pathForResource:@"MainMenu" ofType:@"nib"])
{
[[NSBundle mainBundle] loadNibNamed:@"MainMenu"
owner:NSApp
topLevelObjects:&_glfw.ns.nibObjects];
}
else
createMenuBar();
}
}
- (void)applicationDidFinishLaunching:(NSNotification *)notification
{
_glfwPostEmptyEventCocoa();
[NSApp stop:nil];
}
- (void)applicationDidHide:(NSNotification *)notification
{
for (int i = 0; i < _glfw.monitorCount; i++)
_glfwRestoreVideoModeCocoa(_glfw.monitors[i]);
}
@end // GLFWApplicationDelegate
//////////////////////////////////////////////////////////////////////////
////// GLFW internal API //////
//////////////////////////////////////////////////////////////////////////
void* _glfwLoadLocalVulkanLoaderCocoa(void)
{
CFBundleRef bundle = CFBundleGetMainBundle();
if (!bundle)
return NULL;
CFURLRef frameworksUrl = CFBundleCopyPrivateFrameworksURL(bundle);
if (!frameworksUrl)
return NULL;
CFURLRef loaderUrl = CFURLCreateCopyAppendingPathComponent(
kCFAllocatorDefault, frameworksUrl, CFSTR("libvulkan.1.dylib"), false);
if (!loaderUrl)
{
CFRelease(frameworksUrl);
return NULL;
}
char path[PATH_MAX];
void* handle = NULL;
if (CFURLGetFileSystemRepresentation(loaderUrl, true, (UInt8*) path, sizeof(path) - 1))
handle = _glfwPlatformLoadModule(path);
CFRelease(loaderUrl);
CFRelease(frameworksUrl);
return handle;
}
//////////////////////////////////////////////////////////////////////////
////// GLFW platform API //////
//////////////////////////////////////////////////////////////////////////
GLFWbool _glfwConnectCocoa(int platformID, _GLFWplatform* platform)
{
const _GLFWplatform cocoa =
{
.platformID = GLFW_PLATFORM_COCOA,
.init = _glfwInitCocoa,
.terminate = _glfwTerminateCocoa,
.getCursorPos = _glfwGetCursorPosCocoa,
.setCursorPos = _glfwSetCursorPosCocoa,
.setCursorMode = _glfwSetCursorModeCocoa,
.setRawMouseMotion = _glfwSetRawMouseMotionCocoa,
.rawMouseMotionSupported = _glfwRawMouseMotionSupportedCocoa,
.createCursor = _glfwCreateCursorCocoa,
.createStandardCursor = _glfwCreateStandardCursorCocoa,
.destroyCursor = _glfwDestroyCursorCocoa,
.setCursor = _glfwSetCursorCocoa,
.getScancodeName = _glfwGetScancodeNameCocoa,
.getKeyScancode = _glfwGetKeyScancodeCocoa,
.setClipboardString = _glfwSetClipboardStringCocoa,
.getClipboardString = _glfwGetClipboardStringCocoa,
.initJoysticks = _glfwInitJoysticksCocoa,
.terminateJoysticks = _glfwTerminateJoysticksCocoa,
.pollJoystick = _glfwPollJoystickCocoa,
.getMappingName = _glfwGetMappingNameCocoa,
.updateGamepadGUID = _glfwUpdateGamepadGUIDCocoa,
.freeMonitor = _glfwFreeMonitorCocoa,
.getMonitorPos = _glfwGetMonitorPosCocoa,
.getMonitorContentScale = _glfwGetMonitorContentScaleCocoa,
.getMonitorWorkarea = _glfwGetMonitorWorkareaCocoa,
.getVideoModes = _glfwGetVideoModesCocoa,
.getVideoMode = _glfwGetVideoModeCocoa,
.getGammaRamp = _glfwGetGammaRampCocoa,
.setGammaRamp = _glfwSetGammaRampCocoa,
.createWindow = _glfwCreateWindowCocoa,
.destroyWindow = _glfwDestroyWindowCocoa,
.setWindowTitle = _glfwSetWindowTitleCocoa,
.setWindowIcon = _glfwSetWindowIconCocoa,
.getWindowPos = _glfwGetWindowPosCocoa,
.setWindowPos = _glfwSetWindowPosCocoa,
.getWindowSize = _glfwGetWindowSizeCocoa,
.setWindowSize = _glfwSetWindowSizeCocoa,
.setWindowSizeLimits = _glfwSetWindowSizeLimitsCocoa,
.setWindowAspectRatio = _glfwSetWindowAspectRatioCocoa,
.getFramebufferSize = _glfwGetFramebufferSizeCocoa,
.getWindowFrameSize = _glfwGetWindowFrameSizeCocoa,
.getWindowContentScale = _glfwGetWindowContentScaleCocoa,
.iconifyWindow = _glfwIconifyWindowCocoa,
.restoreWindow = _glfwRestoreWindowCocoa,
.maximizeWindow = _glfwMaximizeWindowCocoa,
.showWindow = _glfwShowWindowCocoa,
.hideWindow = _glfwHideWindowCocoa,
.requestWindowAttention = _glfwRequestWindowAttentionCocoa,
.focusWindow = _glfwFocusWindowCocoa,
.setWindowMonitor = _glfwSetWindowMonitorCocoa,
.windowFocused = _glfwWindowFocusedCocoa,
.windowIconified = _glfwWindowIconifiedCocoa,
.windowVisible = _glfwWindowVisibleCocoa,
.windowMaximized = _glfwWindowMaximizedCocoa,
.windowHovered = _glfwWindowHoveredCocoa,
.framebufferTransparent = _glfwFramebufferTransparentCocoa,
.getWindowOpacity = _glfwGetWindowOpacityCocoa,
.setWindowResizable = _glfwSetWindowResizableCocoa,
.setWindowDecorated = _glfwSetWindowDecoratedCocoa,
.setWindowFloating = _glfwSetWindowFloatingCocoa,
.setWindowOpacity = _glfwSetWindowOpacityCocoa,
.setWindowMousePassthrough = _glfwSetWindowMousePassthroughCocoa,
.pollEvents = _glfwPollEventsCocoa,
.waitEvents = _glfwWaitEventsCocoa,
.waitEventsTimeout = _glfwWaitEventsTimeoutCocoa,
.postEmptyEvent = _glfwPostEmptyEventCocoa,
.getEGLPlatform = _glfwGetEGLPlatformCocoa,
.getEGLNativeDisplay = _glfwGetEGLNativeDisplayCocoa,
.getEGLNativeWindow = _glfwGetEGLNativeWindowCocoa,
.getRequiredInstanceExtensions = _glfwGetRequiredInstanceExtensionsCocoa,
.getPhysicalDevicePresentationSupport = _glfwGetPhysicalDevicePresentationSupportCocoa,
.createWindowSurface = _glfwCreateWindowSurfaceCocoa
};
*platform = cocoa;
return GLFW_TRUE;
}
int _glfwInitCocoa(void)
{
@autoreleasepool {
_glfw.ns.helper = [[GLFWHelper alloc] init];
[NSThread detachNewThreadSelector:@selector(doNothing:)
toTarget:_glfw.ns.helper
withObject:nil];
[NSApplication sharedApplication];
_glfw.ns.delegate = [[GLFWApplicationDelegate alloc] init];
if (_glfw.ns.delegate == nil)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Cocoa: Failed to create application delegate");
return GLFW_FALSE;
}
[NSApp setDelegate:_glfw.ns.delegate];
NSEvent* (^block)(NSEvent*) = ^ NSEvent* (NSEvent* event)
{
if ([event modifierFlags] & NSEventModifierFlagCommand)
[[NSApp keyWindow] sendEvent:event];
return event;
};
_glfw.ns.keyUpMonitor =
[NSEvent addLocalMonitorForEventsMatchingMask:NSEventMaskKeyUp
handler:block];
if (_glfw.hints.init.ns.chdir)
changeToResourcesDirectory();
// Press and Hold prevents some keys from emitting repeated characters
NSDictionary* defaults = @{@"ApplePressAndHoldEnabled":@NO};
[[NSUserDefaults standardUserDefaults] registerDefaults:defaults];
[[NSNotificationCenter defaultCenter]
addObserver:_glfw.ns.helper
selector:@selector(selectedKeyboardInputSourceChanged:)
name:NSTextInputContextKeyboardSelectionDidChangeNotification
object:nil];
createKeyTables();
_glfw.ns.eventSource = CGEventSourceCreate(kCGEventSourceStateHIDSystemState);
if (!_glfw.ns.eventSource)
return GLFW_FALSE;
CGEventSourceSetLocalEventsSuppressionInterval(_glfw.ns.eventSource, 0.0);
if (!initializeTIS())
return GLFW_FALSE;
_glfwPollMonitorsCocoa();
if (![[NSRunningApplication currentApplication] isFinishedLaunching])
[NSApp run];
// In case we are unbundled, make us a proper UI application
if (_glfw.hints.init.ns.menubar)
[NSApp setActivationPolicy:NSApplicationActivationPolicyRegular];
return GLFW_TRUE;
} // autoreleasepool
}
void _glfwTerminateCocoa(void)
{
@autoreleasepool {
if (_glfw.ns.inputSource)
{
CFRelease(_glfw.ns.inputSource);
_glfw.ns.inputSource = NULL;
_glfw.ns.unicodeData = nil;
}
if (_glfw.ns.eventSource)
{
CFRelease(_glfw.ns.eventSource);
_glfw.ns.eventSource = NULL;
}
if (_glfw.ns.delegate)
{
[NSApp setDelegate:nil];
[_glfw.ns.delegate release];
_glfw.ns.delegate = nil;
}
if (_glfw.ns.helper)
{
[[NSNotificationCenter defaultCenter]
removeObserver:_glfw.ns.helper
name:NSTextInputContextKeyboardSelectionDidChangeNotification
object:nil];
[[NSNotificationCenter defaultCenter]
removeObserver:_glfw.ns.helper];
[_glfw.ns.helper release];
_glfw.ns.helper = nil;
}
if (_glfw.ns.keyUpMonitor)
[NSEvent removeMonitor:_glfw.ns.keyUpMonitor];
_glfw_free(_glfw.ns.clipboardString);
_glfwTerminateNSGL();
_glfwTerminateEGL();
_glfwTerminateOSMesa();
} // autoreleasepool
}
#endif // _GLFW_COCOA

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//========================================================================
// GLFW 3.5 Cocoa - www.glfw.org
//------------------------------------------------------------------------
// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org>
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would
// be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
// be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
//========================================================================
#include <IOKit/IOKitLib.h>
#include <IOKit/IOCFPlugIn.h>
#include <IOKit/hid/IOHIDKeys.h>
#define GLFW_COCOA_JOYSTICK_STATE _GLFWjoystickNS ns;
#define GLFW_COCOA_LIBRARY_JOYSTICK_STATE
// Cocoa-specific per-joystick data
//
typedef struct _GLFWjoystickNS
{
IOHIDDeviceRef device;
CFMutableArrayRef axes;
CFMutableArrayRef buttons;
CFMutableArrayRef hats;
} _GLFWjoystickNS;
GLFWbool _glfwInitJoysticksCocoa(void);
void _glfwTerminateJoysticksCocoa(void);
GLFWbool _glfwPollJoystickCocoa(_GLFWjoystick* js, int mode);
const char* _glfwGetMappingNameCocoa(void);
void _glfwUpdateGamepadGUIDCocoa(char* guid);

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//========================================================================
// GLFW 3.5 Cocoa - www.glfw.org
//------------------------------------------------------------------------
// Copyright (c) 2009-2019 Camilla Löwy <elmindreda@glfw.org>
// Copyright (c) 2012 Torsten Walluhn <tw@mad-cad.net>
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would
// be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
// be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
//========================================================================
#include "internal.h"
#if defined(_GLFW_COCOA)
#include <unistd.h>
#include <ctype.h>
#include <string.h>
#include <mach/mach.h>
#include <mach/mach_error.h>
#include <CoreFoundation/CoreFoundation.h>
#include <Kernel/IOKit/hidsystem/IOHIDUsageTables.h>
// Joystick element information
//
typedef struct _GLFWjoyelementNS
{
IOHIDElementRef native;
uint32_t usage;
int index;
long minimum;
long maximum;
} _GLFWjoyelementNS;
// Returns the value of the specified element of the specified joystick
//
static long getElementValue(_GLFWjoystick* js, _GLFWjoyelementNS* element)
{
IOHIDValueRef valueRef;
long value = 0;
if (js->ns.device)
{
if (IOHIDDeviceGetValue(js->ns.device,
element->native,
&valueRef) == kIOReturnSuccess)
{
value = IOHIDValueGetIntegerValue(valueRef);
}
}
return value;
}
// Comparison function for matching the SDL element order
//
static CFComparisonResult compareElements(const void* fp,
const void* sp,
void* user)
{
const _GLFWjoyelementNS* fe = fp;
const _GLFWjoyelementNS* se = sp;
if (fe->usage < se->usage)
return kCFCompareLessThan;
if (fe->usage > se->usage)
return kCFCompareGreaterThan;
if (fe->index < se->index)
return kCFCompareLessThan;
if (fe->index > se->index)
return kCFCompareGreaterThan;
return kCFCompareEqualTo;
}
// Removes the specified joystick
//
static void closeJoystick(_GLFWjoystick* js)
{
_glfwInputJoystick(js, GLFW_DISCONNECTED);
for (int i = 0; i < CFArrayGetCount(js->ns.axes); i++)
_glfw_free((void*) CFArrayGetValueAtIndex(js->ns.axes, i));
CFRelease(js->ns.axes);
for (int i = 0; i < CFArrayGetCount(js->ns.buttons); i++)
_glfw_free((void*) CFArrayGetValueAtIndex(js->ns.buttons, i));
CFRelease(js->ns.buttons);
for (int i = 0; i < CFArrayGetCount(js->ns.hats); i++)
_glfw_free((void*) CFArrayGetValueAtIndex(js->ns.hats, i));
CFRelease(js->ns.hats);
_glfwFreeJoystick(js);
}
// Callback for user-initiated joystick addition
//
static void matchCallback(void* context,
IOReturn result,
void* sender,
IOHIDDeviceRef device)
{
int jid;
char name[256];
char guid[33];
CFTypeRef property;
uint32_t vendor = 0, product = 0, version = 0;
_GLFWjoystick* js;
CFMutableArrayRef axes, buttons, hats;
for (jid = 0; jid <= GLFW_JOYSTICK_LAST; jid++)
{
if (_glfw.joysticks[jid].ns.device == device)
return;
}
CFArrayRef elements =
IOHIDDeviceCopyMatchingElements(device, NULL, kIOHIDOptionsTypeNone);
// It is reportedly possible for this to fail on macOS 13 Ventura
// if the application does not have input monitoring permissions
if (!elements)
return;
axes = CFArrayCreateMutable(NULL, 0, NULL);
buttons = CFArrayCreateMutable(NULL, 0, NULL);
hats = CFArrayCreateMutable(NULL, 0, NULL);
property = IOHIDDeviceGetProperty(device, CFSTR(kIOHIDProductKey));
if (property)
{
CFStringGetCString(property,
name,
sizeof(name),
kCFStringEncodingUTF8);
}
else
strncpy(name, "Unknown", sizeof(name));
property = IOHIDDeviceGetProperty(device, CFSTR(kIOHIDVendorIDKey));
if (property)
CFNumberGetValue(property, kCFNumberSInt32Type, &vendor);
property = IOHIDDeviceGetProperty(device, CFSTR(kIOHIDProductIDKey));
if (property)
CFNumberGetValue(property, kCFNumberSInt32Type, &product);
property = IOHIDDeviceGetProperty(device, CFSTR(kIOHIDVersionNumberKey));
if (property)
CFNumberGetValue(property, kCFNumberSInt32Type, &version);
// Generate a joystick GUID that matches the SDL 2.0.5+ one
if (vendor && product)
{
sprintf(guid, "03000000%02x%02x0000%02x%02x0000%02x%02x0000",
(uint8_t) vendor, (uint8_t) (vendor >> 8),
(uint8_t) product, (uint8_t) (product >> 8),
(uint8_t) version, (uint8_t) (version >> 8));
}
else
{
sprintf(guid, "05000000%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x00",
name[0], name[1], name[2], name[3],
name[4], name[5], name[6], name[7],
name[8], name[9], name[10]);
}
for (CFIndex i = 0; i < CFArrayGetCount(elements); i++)
{
IOHIDElementRef native = (IOHIDElementRef)
CFArrayGetValueAtIndex(elements, i);
if (CFGetTypeID(native) != IOHIDElementGetTypeID())
continue;
const IOHIDElementType type = IOHIDElementGetType(native);
if ((type != kIOHIDElementTypeInput_Axis) &&
(type != kIOHIDElementTypeInput_Button) &&
(type != kIOHIDElementTypeInput_Misc))
{
continue;
}
CFMutableArrayRef target = NULL;
const uint32_t usage = IOHIDElementGetUsage(native);
const uint32_t page = IOHIDElementGetUsagePage(native);
if (page == kHIDPage_GenericDesktop)
{
switch (usage)
{
case kHIDUsage_GD_X:
case kHIDUsage_GD_Y:
case kHIDUsage_GD_Z:
case kHIDUsage_GD_Rx:
case kHIDUsage_GD_Ry:
case kHIDUsage_GD_Rz:
case kHIDUsage_GD_Slider:
case kHIDUsage_GD_Dial:
case kHIDUsage_GD_Wheel:
target = axes;
break;
case kHIDUsage_GD_Hatswitch:
target = hats;
break;
case kHIDUsage_GD_DPadUp:
case kHIDUsage_GD_DPadRight:
case kHIDUsage_GD_DPadDown:
case kHIDUsage_GD_DPadLeft:
case kHIDUsage_GD_SystemMainMenu:
case kHIDUsage_GD_Select:
case kHIDUsage_GD_Start:
target = buttons;
break;
}
}
else if (page == kHIDPage_Simulation)
{
switch (usage)
{
case kHIDUsage_Sim_Accelerator:
case kHIDUsage_Sim_Brake:
case kHIDUsage_Sim_Throttle:
case kHIDUsage_Sim_Rudder:
case kHIDUsage_Sim_Steering:
target = axes;
break;
}
}
else if (page == kHIDPage_Button || page == kHIDPage_Consumer)
target = buttons;
if (target)
{
_GLFWjoyelementNS* element = _glfw_calloc(1, sizeof(_GLFWjoyelementNS));
element->native = native;
element->usage = usage;
element->index = (int) CFArrayGetCount(target);
element->minimum = IOHIDElementGetLogicalMin(native);
element->maximum = IOHIDElementGetLogicalMax(native);
CFArrayAppendValue(target, element);
}
}
CFRelease(elements);
CFArraySortValues(axes, CFRangeMake(0, CFArrayGetCount(axes)),
compareElements, NULL);
CFArraySortValues(buttons, CFRangeMake(0, CFArrayGetCount(buttons)),
compareElements, NULL);
CFArraySortValues(hats, CFRangeMake(0, CFArrayGetCount(hats)),
compareElements, NULL);
js = _glfwAllocJoystick(name, guid,
(int) CFArrayGetCount(axes),
(int) CFArrayGetCount(buttons),
(int) CFArrayGetCount(hats));
js->ns.device = device;
js->ns.axes = axes;
js->ns.buttons = buttons;
js->ns.hats = hats;
_glfwInputJoystick(js, GLFW_CONNECTED);
}
// Callback for user-initiated joystick removal
//
static void removeCallback(void* context,
IOReturn result,
void* sender,
IOHIDDeviceRef device)
{
for (int jid = 0; jid <= GLFW_JOYSTICK_LAST; jid++)
{
if (_glfw.joysticks[jid].connected && _glfw.joysticks[jid].ns.device == device)
{
closeJoystick(&_glfw.joysticks[jid]);
break;
}
}
}
//////////////////////////////////////////////////////////////////////////
////// GLFW platform API //////
//////////////////////////////////////////////////////////////////////////
GLFWbool _glfwInitJoysticksCocoa(void)
{
CFMutableArrayRef matching;
const long usages[] =
{
kHIDUsage_GD_Joystick,
kHIDUsage_GD_GamePad,
kHIDUsage_GD_MultiAxisController
};
_glfw.ns.hidManager = IOHIDManagerCreate(kCFAllocatorDefault,
kIOHIDOptionsTypeNone);
matching = CFArrayCreateMutable(kCFAllocatorDefault,
0,
&kCFTypeArrayCallBacks);
if (!matching)
{
_glfwInputError(GLFW_PLATFORM_ERROR, "Cocoa: Failed to create array");
return GLFW_FALSE;
}
for (size_t i = 0; i < sizeof(usages) / sizeof(long); i++)
{
const long page = kHIDPage_GenericDesktop;
CFMutableDictionaryRef dict =
CFDictionaryCreateMutable(kCFAllocatorDefault,
0,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
if (!dict)
continue;
CFNumberRef pageRef = CFNumberCreate(kCFAllocatorDefault,
kCFNumberLongType,
&page);
CFNumberRef usageRef = CFNumberCreate(kCFAllocatorDefault,
kCFNumberLongType,
&usages[i]);
if (pageRef && usageRef)
{
CFDictionarySetValue(dict,
CFSTR(kIOHIDDeviceUsagePageKey),
pageRef);
CFDictionarySetValue(dict,
CFSTR(kIOHIDDeviceUsageKey),
usageRef);
CFArrayAppendValue(matching, dict);
}
if (pageRef)
CFRelease(pageRef);
if (usageRef)
CFRelease(usageRef);
CFRelease(dict);
}
IOHIDManagerSetDeviceMatchingMultiple(_glfw.ns.hidManager, matching);
CFRelease(matching);
IOHIDManagerRegisterDeviceMatchingCallback(_glfw.ns.hidManager,
&matchCallback, NULL);
IOHIDManagerRegisterDeviceRemovalCallback(_glfw.ns.hidManager,
&removeCallback, NULL);
IOHIDManagerScheduleWithRunLoop(_glfw.ns.hidManager,
CFRunLoopGetMain(),
kCFRunLoopDefaultMode);
IOHIDManagerOpen(_glfw.ns.hidManager, kIOHIDOptionsTypeNone);
// Execute the run loop once in order to register any initially-attached
// joysticks
CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0, false);
return GLFW_TRUE;
}
void _glfwTerminateJoysticksCocoa(void)
{
for (int jid = 0; jid <= GLFW_JOYSTICK_LAST; jid++)
{
if (_glfw.joysticks[jid].connected)
closeJoystick(&_glfw.joysticks[jid]);
}
if (_glfw.ns.hidManager)
{
CFRelease(_glfw.ns.hidManager);
_glfw.ns.hidManager = NULL;
}
}
GLFWbool _glfwPollJoystickCocoa(_GLFWjoystick* js, int mode)
{
if (mode & _GLFW_POLL_AXES)
{
for (CFIndex i = 0; i < CFArrayGetCount(js->ns.axes); i++)
{
_GLFWjoyelementNS* axis = (_GLFWjoyelementNS*)
CFArrayGetValueAtIndex(js->ns.axes, i);
const long raw = getElementValue(js, axis);
// Perform auto calibration
if (raw < axis->minimum)
axis->minimum = raw;
if (raw > axis->maximum)
axis->maximum = raw;
const long size = axis->maximum - axis->minimum;
if (size == 0)
_glfwInputJoystickAxis(js, (int) i, 0.f);
else
{
const float value = (2.f * (raw - axis->minimum) / size) - 1.f;
_glfwInputJoystickAxis(js, (int) i, value);
}
}
}
if (mode & _GLFW_POLL_BUTTONS)
{
for (CFIndex i = 0; i < CFArrayGetCount(js->ns.buttons); i++)
{
_GLFWjoyelementNS* button = (_GLFWjoyelementNS*)
CFArrayGetValueAtIndex(js->ns.buttons, i);
const char value = getElementValue(js, button) - button->minimum;
const int state = (value > 0) ? GLFW_PRESS : GLFW_RELEASE;
_glfwInputJoystickButton(js, (int) i, state);
}
for (CFIndex i = 0; i < CFArrayGetCount(js->ns.hats); i++)
{
const int states[9] =
{
GLFW_HAT_UP,
GLFW_HAT_RIGHT_UP,
GLFW_HAT_RIGHT,
GLFW_HAT_RIGHT_DOWN,
GLFW_HAT_DOWN,
GLFW_HAT_LEFT_DOWN,
GLFW_HAT_LEFT,
GLFW_HAT_LEFT_UP,
GLFW_HAT_CENTERED
};
_GLFWjoyelementNS* hat = (_GLFWjoyelementNS*)
CFArrayGetValueAtIndex(js->ns.hats, i);
long state = getElementValue(js, hat) - hat->minimum;
if (state < 0 || state > 8)
state = 8;
_glfwInputJoystickHat(js, (int) i, states[state]);
}
}
return js->connected;
}
const char* _glfwGetMappingNameCocoa(void)
{
return "Mac OS X";
}
void _glfwUpdateGamepadGUIDCocoa(char* guid)
{
if ((strncmp(guid + 4, "000000000000", 12) == 0) &&
(strncmp(guid + 20, "000000000000", 12) == 0))
{
char original[33];
strncpy(original, guid, sizeof(original) - 1);
sprintf(guid, "03000000%.4s0000%.4s000000000000",
original, original + 16);
}
}
#endif // _GLFW_COCOA

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thirdparty/glfw/src/cocoa_monitor.m vendored
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//========================================================================
// GLFW 3.5 macOS - www.glfw.org
//------------------------------------------------------------------------
// Copyright (c) 2002-2006 Marcus Geelnard
// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would
// be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
// be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
//========================================================================
#include "internal.h"
#if defined(_GLFW_COCOA)
#include <stdlib.h>
#include <limits.h>
#include <math.h>
#include <assert.h>
#include <IOKit/graphics/IOGraphicsLib.h>
#include <ApplicationServices/ApplicationServices.h>
// Get the name of the specified display, or NULL
//
static char* getMonitorName(CGDirectDisplayID displayID, NSScreen* screen)
{
// IOKit doesn't work on Apple Silicon anymore
// Luckily, 10.15 introduced -[NSScreen localizedName].
// Use it if available, and fall back to IOKit otherwise.
if (screen)
{
if ([screen respondsToSelector:@selector(localizedName)])
{
NSString* name = [screen valueForKey:@"localizedName"];
if (name)
return _glfw_strdup([name UTF8String]);
}
}
io_iterator_t it;
io_service_t service;
CFDictionaryRef info;
if (IOServiceGetMatchingServices(MACH_PORT_NULL,
IOServiceMatching("IODisplayConnect"),
&it) != 0)
{
// This may happen if a desktop Mac is running headless
return _glfw_strdup("Display");
}
while ((service = IOIteratorNext(it)) != 0)
{
info = IODisplayCreateInfoDictionary(service,
kIODisplayOnlyPreferredName);
CFNumberRef vendorIDRef =
CFDictionaryGetValue(info, CFSTR(kDisplayVendorID));
CFNumberRef productIDRef =
CFDictionaryGetValue(info, CFSTR(kDisplayProductID));
if (!vendorIDRef || !productIDRef)
{
CFRelease(info);
continue;
}
unsigned int vendorID, productID;
CFNumberGetValue(vendorIDRef, kCFNumberIntType, &vendorID);
CFNumberGetValue(productIDRef, kCFNumberIntType, &productID);
if (CGDisplayVendorNumber(displayID) == vendorID &&
CGDisplayModelNumber(displayID) == productID)
{
// Info dictionary is used and freed below
break;
}
CFRelease(info);
}
IOObjectRelease(it);
if (!service)
return _glfw_strdup("Display");
CFDictionaryRef names =
CFDictionaryGetValue(info, CFSTR(kDisplayProductName));
CFStringRef nameRef;
if (!names || !CFDictionaryGetValueIfPresent(names, CFSTR("en_US"),
(const void**) &nameRef))
{
// This may happen if a desktop Mac is running headless
CFRelease(info);
return _glfw_strdup("Display");
}
const CFIndex size =
CFStringGetMaximumSizeForEncoding(CFStringGetLength(nameRef),
kCFStringEncodingUTF8);
char* name = _glfw_calloc(size + 1, 1);
CFStringGetCString(nameRef, name, size, kCFStringEncodingUTF8);
CFRelease(info);
return name;
}
// Check whether the display mode should be included in enumeration
//
static GLFWbool modeIsGood(CGDisplayModeRef mode)
{
uint32_t flags = CGDisplayModeGetIOFlags(mode);
if (!(flags & kDisplayModeValidFlag) || !(flags & kDisplayModeSafeFlag))
return GLFW_FALSE;
if (flags & kDisplayModeInterlacedFlag)
return GLFW_FALSE;
if (flags & kDisplayModeStretchedFlag)
return GLFW_FALSE;
#if MAC_OS_X_VERSION_MAX_ALLOWED == 101100
CFStringRef format = CGDisplayModeCopyPixelEncoding(mode);
if (CFStringCompare(format, CFSTR(IO16BitDirectPixels), 0) &&
CFStringCompare(format, CFSTR(IO32BitDirectPixels), 0))
{
CFRelease(format);
return GLFW_FALSE;
}
CFRelease(format);
#endif /* MAC_OS_X_VERSION_MAX_ALLOWED */
return GLFW_TRUE;
}
// Convert Core Graphics display mode to GLFW video mode
//
static GLFWvidmode vidmodeFromCGDisplayMode(CGDisplayModeRef mode,
double fallbackRefreshRate)
{
GLFWvidmode result;
result.width = (int) CGDisplayModeGetWidth(mode);
result.height = (int) CGDisplayModeGetHeight(mode);
result.refreshRate = (int) round(CGDisplayModeGetRefreshRate(mode));
if (result.refreshRate == 0)
result.refreshRate = (int) round(fallbackRefreshRate);
#if MAC_OS_X_VERSION_MAX_ALLOWED == 101100
CFStringRef format = CGDisplayModeCopyPixelEncoding(mode);
if (CFStringCompare(format, CFSTR(IO16BitDirectPixels), 0) == 0)
{
result.redBits = 5;
result.greenBits = 5;
result.blueBits = 5;
}
else
#endif /* MAC_OS_X_VERSION_MAX_ALLOWED */
{
result.redBits = 8;
result.greenBits = 8;
result.blueBits = 8;
}
#if MAC_OS_X_VERSION_MAX_ALLOWED == 101100
CFRelease(format);
#endif /* MAC_OS_X_VERSION_MAX_ALLOWED */
return result;
}
// Starts reservation for display fading
//
static CGDisplayFadeReservationToken beginFadeReservation(void)
{
CGDisplayFadeReservationToken token = kCGDisplayFadeReservationInvalidToken;
if (CGAcquireDisplayFadeReservation(5, &token) == kCGErrorSuccess)
{
CGDisplayFade(token, 0.3,
kCGDisplayBlendNormal,
kCGDisplayBlendSolidColor,
0.0, 0.0, 0.0,
TRUE);
}
return token;
}
// Ends reservation for display fading
//
static void endFadeReservation(CGDisplayFadeReservationToken token)
{
if (token != kCGDisplayFadeReservationInvalidToken)
{
CGDisplayFade(token, 0.5,
kCGDisplayBlendSolidColor,
kCGDisplayBlendNormal,
0.0, 0.0, 0.0,
FALSE);
CGReleaseDisplayFadeReservation(token);
}
}
// Returns the display refresh rate queried from the I/O registry
//
static double getFallbackRefreshRate(CGDirectDisplayID displayID)
{
double refreshRate = 60.0;
io_iterator_t it;
io_service_t service;
if (IOServiceGetMatchingServices(MACH_PORT_NULL,
IOServiceMatching("IOFramebuffer"),
&it) != 0)
{
return refreshRate;
}
while ((service = IOIteratorNext(it)) != 0)
{
const CFNumberRef indexRef =
IORegistryEntryCreateCFProperty(service,
CFSTR("IOFramebufferOpenGLIndex"),
kCFAllocatorDefault,
kNilOptions);
if (!indexRef)
continue;
uint32_t index = 0;
CFNumberGetValue(indexRef, kCFNumberIntType, &index);
CFRelease(indexRef);
if (CGOpenGLDisplayMaskToDisplayID(1 << index) != displayID)
continue;
const CFNumberRef clockRef =
IORegistryEntryCreateCFProperty(service,
CFSTR("IOFBCurrentPixelClock"),
kCFAllocatorDefault,
kNilOptions);
const CFNumberRef countRef =
IORegistryEntryCreateCFProperty(service,
CFSTR("IOFBCurrentPixelCount"),
kCFAllocatorDefault,
kNilOptions);
uint32_t clock = 0, count = 0;
if (clockRef)
{
CFNumberGetValue(clockRef, kCFNumberIntType, &clock);
CFRelease(clockRef);
}
if (countRef)
{
CFNumberGetValue(countRef, kCFNumberIntType, &count);
CFRelease(countRef);
}
if (clock > 0 && count > 0)
refreshRate = clock / (double) count;
break;
}
IOObjectRelease(it);
return refreshRate;
}
//////////////////////////////////////////////////////////////////////////
////// GLFW internal API //////
//////////////////////////////////////////////////////////////////////////
// Poll for changes in the set of connected monitors
//
void _glfwPollMonitorsCocoa(void)
{
uint32_t displayCount;
CGGetOnlineDisplayList(0, NULL, &displayCount);
CGDirectDisplayID* displays = _glfw_calloc(displayCount, sizeof(CGDirectDisplayID));
CGGetOnlineDisplayList(displayCount, displays, &displayCount);
for (int i = 0; i < _glfw.monitorCount; i++)
_glfw.monitors[i]->ns.screen = nil;
_GLFWmonitor** disconnected = NULL;
uint32_t disconnectedCount = _glfw.monitorCount;
if (disconnectedCount)
{
disconnected = _glfw_calloc(_glfw.monitorCount, sizeof(_GLFWmonitor*));
memcpy(disconnected,
_glfw.monitors,
_glfw.monitorCount * sizeof(_GLFWmonitor*));
}
for (uint32_t i = 0; i < displayCount; i++)
{
if (CGDisplayIsAsleep(displays[i]))
continue;
const uint32_t unitNumber = CGDisplayUnitNumber(displays[i]);
NSScreen* screen = nil;
for (screen in [NSScreen screens])
{
NSNumber* screenNumber = [screen deviceDescription][@"NSScreenNumber"];
// HACK: Compare unit numbers instead of display IDs to work around
// display replacement on machines with automatic graphics
// switching
if (CGDisplayUnitNumber([screenNumber unsignedIntValue]) == unitNumber)
break;
}
// HACK: Compare unit numbers instead of display IDs to work around
// display replacement on machines with automatic graphics
// switching
uint32_t j;
for (j = 0; j < disconnectedCount; j++)
{
if (disconnected[j] && disconnected[j]->ns.unitNumber == unitNumber)
{
disconnected[j]->ns.screen = screen;
disconnected[j] = NULL;
break;
}
}
if (j < disconnectedCount)
continue;
const CGSize size = CGDisplayScreenSize(displays[i]);
char* name = getMonitorName(displays[i], screen);
if (!name)
continue;
_GLFWmonitor* monitor = _glfwAllocMonitor(name, size.width, size.height);
monitor->ns.displayID = displays[i];
monitor->ns.unitNumber = unitNumber;
monitor->ns.screen = screen;
_glfw_free(name);
CGDisplayModeRef mode = CGDisplayCopyDisplayMode(displays[i]);
if (CGDisplayModeGetRefreshRate(mode) == 0.0)
monitor->ns.fallbackRefreshRate = getFallbackRefreshRate(displays[i]);
CGDisplayModeRelease(mode);
_glfwInputMonitor(monitor, GLFW_CONNECTED, _GLFW_INSERT_LAST);
}
for (uint32_t i = 0; i < disconnectedCount; i++)
{
if (disconnected[i])
_glfwInputMonitor(disconnected[i], GLFW_DISCONNECTED, 0);
}
_glfw_free(disconnected);
_glfw_free(displays);
}
// Change the current video mode
//
void _glfwSetVideoModeCocoa(_GLFWmonitor* monitor, const GLFWvidmode* desired)
{
GLFWvidmode current;
_glfwGetVideoModeCocoa(monitor, &current);
const GLFWvidmode* best = _glfwChooseVideoMode(monitor, desired);
if (_glfwCompareVideoModes(&current, best) == 0)
return;
CFArrayRef modes = CGDisplayCopyAllDisplayModes(monitor->ns.displayID, NULL);
const CFIndex count = CFArrayGetCount(modes);
CGDisplayModeRef native = NULL;
for (CFIndex i = 0; i < count; i++)
{
CGDisplayModeRef dm = (CGDisplayModeRef) CFArrayGetValueAtIndex(modes, i);
if (!modeIsGood(dm))
continue;
const GLFWvidmode mode =
vidmodeFromCGDisplayMode(dm, monitor->ns.fallbackRefreshRate);
if (_glfwCompareVideoModes(best, &mode) == 0)
{
native = dm;
break;
}
}
if (native)
{
if (monitor->ns.previousMode == NULL)
monitor->ns.previousMode = CGDisplayCopyDisplayMode(monitor->ns.displayID);
CGDisplayFadeReservationToken token = beginFadeReservation();
CGDisplaySetDisplayMode(monitor->ns.displayID, native, NULL);
endFadeReservation(token);
}
CFRelease(modes);
}
// Restore the previously saved (original) video mode
//
void _glfwRestoreVideoModeCocoa(_GLFWmonitor* monitor)
{
if (monitor->ns.previousMode)
{
CGDisplayFadeReservationToken token = beginFadeReservation();
CGDisplaySetDisplayMode(monitor->ns.displayID,
monitor->ns.previousMode, NULL);
endFadeReservation(token);
CGDisplayModeRelease(monitor->ns.previousMode);
monitor->ns.previousMode = NULL;
}
}
//////////////////////////////////////////////////////////////////////////
////// GLFW platform API //////
//////////////////////////////////////////////////////////////////////////
void _glfwFreeMonitorCocoa(_GLFWmonitor* monitor)
{
}
void _glfwGetMonitorPosCocoa(_GLFWmonitor* monitor, int* xpos, int* ypos)
{
@autoreleasepool {
const CGRect bounds = CGDisplayBounds(monitor->ns.displayID);
if (xpos)
*xpos = (int) bounds.origin.x;
if (ypos)
*ypos = (int) bounds.origin.y;
} // autoreleasepool
}
void _glfwGetMonitorContentScaleCocoa(_GLFWmonitor* monitor,
float* xscale, float* yscale)
{
@autoreleasepool {
if (!monitor->ns.screen)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Cocoa: Cannot query content scale without screen");
}
const NSRect points = [monitor->ns.screen frame];
const NSRect pixels = [monitor->ns.screen convertRectToBacking:points];
if (xscale)
*xscale = (float) (pixels.size.width / points.size.width);
if (yscale)
*yscale = (float) (pixels.size.height / points.size.height);
} // autoreleasepool
}
void _glfwGetMonitorWorkareaCocoa(_GLFWmonitor* monitor,
int* xpos, int* ypos,
int* width, int* height)
{
@autoreleasepool {
if (!monitor->ns.screen)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Cocoa: Cannot query workarea without screen");
}
const NSRect frameRect = [monitor->ns.screen visibleFrame];
if (xpos)
*xpos = frameRect.origin.x;
if (ypos)
*ypos = _glfwTransformYCocoa(frameRect.origin.y + frameRect.size.height - 1);
if (width)
*width = frameRect.size.width;
if (height)
*height = frameRect.size.height;
} // autoreleasepool
}
GLFWvidmode* _glfwGetVideoModesCocoa(_GLFWmonitor* monitor, int* count)
{
@autoreleasepool {
*count = 0;
CFArrayRef modes = CGDisplayCopyAllDisplayModes(monitor->ns.displayID, NULL);
const CFIndex found = CFArrayGetCount(modes);
GLFWvidmode* result = _glfw_calloc(found, sizeof(GLFWvidmode));
for (CFIndex i = 0; i < found; i++)
{
CGDisplayModeRef dm = (CGDisplayModeRef) CFArrayGetValueAtIndex(modes, i);
if (!modeIsGood(dm))
continue;
const GLFWvidmode mode =
vidmodeFromCGDisplayMode(dm, monitor->ns.fallbackRefreshRate);
CFIndex j;
for (j = 0; j < *count; j++)
{
if (_glfwCompareVideoModes(result + j, &mode) == 0)
break;
}
// Skip duplicate modes
if (j < *count)
continue;
(*count)++;
result[*count - 1] = mode;
}
CFRelease(modes);
return result;
} // autoreleasepool
}
GLFWbool _glfwGetVideoModeCocoa(_GLFWmonitor* monitor, GLFWvidmode *mode)
{
@autoreleasepool {
CGDisplayModeRef native = CGDisplayCopyDisplayMode(monitor->ns.displayID);
if (!native)
{
_glfwInputError(GLFW_PLATFORM_ERROR, "Cocoa: Failed to query display mode");
return GLFW_FALSE;
}
*mode = vidmodeFromCGDisplayMode(native, monitor->ns.fallbackRefreshRate);
CGDisplayModeRelease(native);
return GLFW_TRUE;
} // autoreleasepool
}
GLFWbool _glfwGetGammaRampCocoa(_GLFWmonitor* monitor, GLFWgammaramp* ramp)
{
@autoreleasepool {
uint32_t size = CGDisplayGammaTableCapacity(monitor->ns.displayID);
CGGammaValue* values = _glfw_calloc(size * 3, sizeof(CGGammaValue));
CGGetDisplayTransferByTable(monitor->ns.displayID,
size,
values,
values + size,
values + size * 2,
&size);
_glfwAllocGammaArrays(ramp, size);
for (uint32_t i = 0; i < size; i++)
{
ramp->red[i] = (unsigned short) (values[i] * 65535);
ramp->green[i] = (unsigned short) (values[i + size] * 65535);
ramp->blue[i] = (unsigned short) (values[i + size * 2] * 65535);
}
_glfw_free(values);
return GLFW_TRUE;
} // autoreleasepool
}
void _glfwSetGammaRampCocoa(_GLFWmonitor* monitor, const GLFWgammaramp* ramp)
{
@autoreleasepool {
CGGammaValue* values = _glfw_calloc(ramp->size * 3, sizeof(CGGammaValue));
for (unsigned int i = 0; i < ramp->size; i++)
{
values[i] = ramp->red[i] / 65535.f;
values[i + ramp->size] = ramp->green[i] / 65535.f;
values[i + ramp->size * 2] = ramp->blue[i] / 65535.f;
}
CGSetDisplayTransferByTable(monitor->ns.displayID,
ramp->size,
values,
values + ramp->size,
values + ramp->size * 2);
_glfw_free(values);
} // autoreleasepool
}
//////////////////////////////////////////////////////////////////////////
////// GLFW native API //////
//////////////////////////////////////////////////////////////////////////
GLFWAPI CGDirectDisplayID glfwGetCocoaMonitor(GLFWmonitor* handle)
{
_GLFW_REQUIRE_INIT_OR_RETURN(kCGNullDirectDisplay);
if (_glfw.platform.platformID != GLFW_PLATFORM_COCOA)
{
_glfwInputError(GLFW_PLATFORM_UNAVAILABLE, "Cocoa: Platform not initialized");
return kCGNullDirectDisplay;
}
_GLFWmonitor* monitor = (_GLFWmonitor*) handle;
assert(monitor != NULL);
return monitor->ns.displayID;
}
#endif // _GLFW_COCOA

302
thirdparty/glfw/src/cocoa_platform.h vendored
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@ -1,302 +0,0 @@
//========================================================================
// GLFW 3.5 macOS - www.glfw.org
//------------------------------------------------------------------------
// Copyright (c) 2009-2019 Camilla Löwy <elmindreda@glfw.org>
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would
// be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
// be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
//========================================================================
#include <stdint.h>
#include <Carbon/Carbon.h>
#include <IOKit/hid/IOHIDLib.h>
// NOTE: All of NSGL was deprecated in the 10.14 SDK
// This disables the pointless warnings for every symbol we use
#ifndef GL_SILENCE_DEPRECATION
#define GL_SILENCE_DEPRECATION
#endif
#if defined(__OBJC__)
#import <Cocoa/Cocoa.h>
#else
typedef void* id;
#endif
// NOTE: Many Cocoa enum values have been renamed and we need to build across
// SDK versions where one is unavailable or deprecated.
// We use the newer names in code and replace them with the older names if
// the base SDK does not provide the newer names.
#if MAC_OS_X_VERSION_MAX_ALLOWED < 101400
#define NSOpenGLContextParameterSwapInterval NSOpenGLCPSwapInterval
#define NSOpenGLContextParameterSurfaceOpacity NSOpenGLCPSurfaceOpacity
#endif
#if MAC_OS_X_VERSION_MAX_ALLOWED < 101200
#define NSBitmapFormatAlphaNonpremultiplied NSAlphaNonpremultipliedBitmapFormat
#define NSEventMaskAny NSAnyEventMask
#define NSEventMaskKeyUp NSKeyUpMask
#define NSEventModifierFlagCapsLock NSAlphaShiftKeyMask
#define NSEventModifierFlagCommand NSCommandKeyMask
#define NSEventModifierFlagControl NSControlKeyMask
#define NSEventModifierFlagDeviceIndependentFlagsMask NSDeviceIndependentModifierFlagsMask
#define NSEventModifierFlagOption NSAlternateKeyMask
#define NSEventModifierFlagShift NSShiftKeyMask
#define NSEventTypeApplicationDefined NSApplicationDefined
#define NSWindowStyleMaskBorderless NSBorderlessWindowMask
#define NSWindowStyleMaskClosable NSClosableWindowMask
#define NSWindowStyleMaskMiniaturizable NSMiniaturizableWindowMask
#define NSWindowStyleMaskResizable NSResizableWindowMask
#define NSWindowStyleMaskTitled NSTitledWindowMask
#endif
// NOTE: Many Cocoa dynamically linked constants have been renamed and we need
// to build across SDK versions where one is unavailable or deprecated.
// We use the newer names in code and replace them with the older names if
// the deployment target is older than the newer names.
#if MAC_OS_X_VERSION_MIN_REQUIRED < 101300
#define NSPasteboardTypeURL NSURLPboardType
#endif
typedef VkFlags VkMacOSSurfaceCreateFlagsMVK;
typedef VkFlags VkMetalSurfaceCreateFlagsEXT;
typedef struct VkMacOSSurfaceCreateInfoMVK
{
VkStructureType sType;
const void* pNext;
VkMacOSSurfaceCreateFlagsMVK flags;
const void* pView;
} VkMacOSSurfaceCreateInfoMVK;
typedef struct VkMetalSurfaceCreateInfoEXT
{
VkStructureType sType;
const void* pNext;
VkMetalSurfaceCreateFlagsEXT flags;
const void* pLayer;
} VkMetalSurfaceCreateInfoEXT;
typedef VkResult (APIENTRY *PFN_vkCreateMacOSSurfaceMVK)(VkInstance,const VkMacOSSurfaceCreateInfoMVK*,const VkAllocationCallbacks*,VkSurfaceKHR*);
typedef VkResult (APIENTRY *PFN_vkCreateMetalSurfaceEXT)(VkInstance,const VkMetalSurfaceCreateInfoEXT*,const VkAllocationCallbacks*,VkSurfaceKHR*);
#define GLFW_COCOA_WINDOW_STATE _GLFWwindowNS ns;
#define GLFW_COCOA_LIBRARY_WINDOW_STATE _GLFWlibraryNS ns;
#define GLFW_COCOA_MONITOR_STATE _GLFWmonitorNS ns;
#define GLFW_COCOA_CURSOR_STATE _GLFWcursorNS ns;
#define GLFW_NSGL_CONTEXT_STATE _GLFWcontextNSGL nsgl;
#define GLFW_NSGL_LIBRARY_CONTEXT_STATE _GLFWlibraryNSGL nsgl;
// HIToolbox.framework pointer typedefs
#define kTISPropertyUnicodeKeyLayoutData _glfw.ns.tis.kPropertyUnicodeKeyLayoutData
typedef TISInputSourceRef (*PFN_TISCopyCurrentKeyboardLayoutInputSource)(void);
#define TISCopyCurrentKeyboardLayoutInputSource _glfw.ns.tis.CopyCurrentKeyboardLayoutInputSource
typedef void* (*PFN_TISGetInputSourceProperty)(TISInputSourceRef,CFStringRef);
#define TISGetInputSourceProperty _glfw.ns.tis.GetInputSourceProperty
typedef UInt8 (*PFN_LMGetKbdType)(void);
#define LMGetKbdType _glfw.ns.tis.GetKbdType
// NSGL-specific per-context data
//
typedef struct _GLFWcontextNSGL
{
id pixelFormat;
id object;
} _GLFWcontextNSGL;
// NSGL-specific global data
//
typedef struct _GLFWlibraryNSGL
{
// dlopen handle for OpenGL.framework (for glfwGetProcAddress)
CFBundleRef framework;
} _GLFWlibraryNSGL;
// Cocoa-specific per-window data
//
typedef struct _GLFWwindowNS
{
id object;
id delegate;
id view;
id layer;
GLFWbool maximized;
GLFWbool occluded;
GLFWbool scaleFramebuffer;
// Cached window properties to filter out duplicate events
int width, height;
int fbWidth, fbHeight;
float xscale, yscale;
// The total sum of the distances the cursor has been warped
// since the last cursor motion event was processed
// This is kept to counteract Cocoa doing the same internally
double cursorWarpDeltaX, cursorWarpDeltaY;
} _GLFWwindowNS;
// Cocoa-specific global data
//
typedef struct _GLFWlibraryNS
{
CGEventSourceRef eventSource;
id delegate;
GLFWbool cursorHidden;
TISInputSourceRef inputSource;
IOHIDManagerRef hidManager;
id unicodeData;
id helper;
id keyUpMonitor;
id nibObjects;
char keynames[GLFW_KEY_LAST + 1][17];
short int keycodes[256];
short int scancodes[GLFW_KEY_LAST + 1];
char* clipboardString;
CGPoint cascadePoint;
// Where to place the cursor when re-enabled
double restoreCursorPosX, restoreCursorPosY;
// The window whose disabled cursor mode is active
_GLFWwindow* disabledCursorWindow;
struct {
CFBundleRef bundle;
PFN_TISCopyCurrentKeyboardLayoutInputSource CopyCurrentKeyboardLayoutInputSource;
PFN_TISGetInputSourceProperty GetInputSourceProperty;
PFN_LMGetKbdType GetKbdType;
CFStringRef kPropertyUnicodeKeyLayoutData;
} tis;
} _GLFWlibraryNS;
// Cocoa-specific per-monitor data
//
typedef struct _GLFWmonitorNS
{
CGDirectDisplayID displayID;
CGDisplayModeRef previousMode;
uint32_t unitNumber;
id screen;
double fallbackRefreshRate;
} _GLFWmonitorNS;
// Cocoa-specific per-cursor data
//
typedef struct _GLFWcursorNS
{
id object;
} _GLFWcursorNS;
GLFWbool _glfwConnectCocoa(int platformID, _GLFWplatform* platform);
int _glfwInitCocoa(void);
void _glfwTerminateCocoa(void);
GLFWbool _glfwCreateWindowCocoa(_GLFWwindow* window, const _GLFWwndconfig* wndconfig, const _GLFWctxconfig* ctxconfig, const _GLFWfbconfig* fbconfig);
void _glfwDestroyWindowCocoa(_GLFWwindow* window);
void _glfwSetWindowTitleCocoa(_GLFWwindow* window, const char* title);
void _glfwSetWindowIconCocoa(_GLFWwindow* window, int count, const GLFWimage* images);
void _glfwGetWindowPosCocoa(_GLFWwindow* window, int* xpos, int* ypos);
void _glfwSetWindowPosCocoa(_GLFWwindow* window, int xpos, int ypos);
void _glfwGetWindowSizeCocoa(_GLFWwindow* window, int* width, int* height);
void _glfwSetWindowSizeCocoa(_GLFWwindow* window, int width, int height);
void _glfwSetWindowSizeLimitsCocoa(_GLFWwindow* window, int minwidth, int minheight, int maxwidth, int maxheight);
void _glfwSetWindowAspectRatioCocoa(_GLFWwindow* window, int numer, int denom);
void _glfwGetFramebufferSizeCocoa(_GLFWwindow* window, int* width, int* height);
void _glfwGetWindowFrameSizeCocoa(_GLFWwindow* window, int* left, int* top, int* right, int* bottom);
void _glfwGetWindowContentScaleCocoa(_GLFWwindow* window, float* xscale, float* yscale);
void _glfwIconifyWindowCocoa(_GLFWwindow* window);
void _glfwRestoreWindowCocoa(_GLFWwindow* window);
void _glfwMaximizeWindowCocoa(_GLFWwindow* window);
void _glfwShowWindowCocoa(_GLFWwindow* window);
void _glfwHideWindowCocoa(_GLFWwindow* window);
void _glfwRequestWindowAttentionCocoa(_GLFWwindow* window);
void _glfwFocusWindowCocoa(_GLFWwindow* window);
void _glfwSetWindowMonitorCocoa(_GLFWwindow* window, _GLFWmonitor* monitor, int xpos, int ypos, int width, int height, int refreshRate);
GLFWbool _glfwWindowFocusedCocoa(_GLFWwindow* window);
GLFWbool _glfwWindowIconifiedCocoa(_GLFWwindow* window);
GLFWbool _glfwWindowVisibleCocoa(_GLFWwindow* window);
GLFWbool _glfwWindowMaximizedCocoa(_GLFWwindow* window);
GLFWbool _glfwWindowHoveredCocoa(_GLFWwindow* window);
GLFWbool _glfwFramebufferTransparentCocoa(_GLFWwindow* window);
void _glfwSetWindowResizableCocoa(_GLFWwindow* window, GLFWbool enabled);
void _glfwSetWindowDecoratedCocoa(_GLFWwindow* window, GLFWbool enabled);
void _glfwSetWindowFloatingCocoa(_GLFWwindow* window, GLFWbool enabled);
float _glfwGetWindowOpacityCocoa(_GLFWwindow* window);
void _glfwSetWindowOpacityCocoa(_GLFWwindow* window, float opacity);
void _glfwSetWindowMousePassthroughCocoa(_GLFWwindow* window, GLFWbool enabled);
void _glfwSetRawMouseMotionCocoa(_GLFWwindow *window, GLFWbool enabled);
GLFWbool _glfwRawMouseMotionSupportedCocoa(void);
void _glfwPollEventsCocoa(void);
void _glfwWaitEventsCocoa(void);
void _glfwWaitEventsTimeoutCocoa(double timeout);
void _glfwPostEmptyEventCocoa(void);
void _glfwGetCursorPosCocoa(_GLFWwindow* window, double* xpos, double* ypos);
void _glfwSetCursorPosCocoa(_GLFWwindow* window, double xpos, double ypos);
void _glfwSetCursorModeCocoa(_GLFWwindow* window, int mode);
const char* _glfwGetScancodeNameCocoa(int scancode);
int _glfwGetKeyScancodeCocoa(int key);
GLFWbool _glfwCreateCursorCocoa(_GLFWcursor* cursor, const GLFWimage* image, int xhot, int yhot);
GLFWbool _glfwCreateStandardCursorCocoa(_GLFWcursor* cursor, int shape);
void _glfwDestroyCursorCocoa(_GLFWcursor* cursor);
void _glfwSetCursorCocoa(_GLFWwindow* window, _GLFWcursor* cursor);
void _glfwSetClipboardStringCocoa(const char* string);
const char* _glfwGetClipboardStringCocoa(void);
EGLenum _glfwGetEGLPlatformCocoa(EGLint** attribs);
EGLNativeDisplayType _glfwGetEGLNativeDisplayCocoa(void);
EGLNativeWindowType _glfwGetEGLNativeWindowCocoa(_GLFWwindow* window);
void _glfwGetRequiredInstanceExtensionsCocoa(char** extensions);
GLFWbool _glfwGetPhysicalDevicePresentationSupportCocoa(VkInstance instance, VkPhysicalDevice device, uint32_t queuefamily);
VkResult _glfwCreateWindowSurfaceCocoa(VkInstance instance, _GLFWwindow* window, const VkAllocationCallbacks* allocator, VkSurfaceKHR* surface);
void _glfwFreeMonitorCocoa(_GLFWmonitor* monitor);
void _glfwGetMonitorPosCocoa(_GLFWmonitor* monitor, int* xpos, int* ypos);
void _glfwGetMonitorContentScaleCocoa(_GLFWmonitor* monitor, float* xscale, float* yscale);
void _glfwGetMonitorWorkareaCocoa(_GLFWmonitor* monitor, int* xpos, int* ypos, int* width, int* height);
GLFWvidmode* _glfwGetVideoModesCocoa(_GLFWmonitor* monitor, int* count);
GLFWbool _glfwGetVideoModeCocoa(_GLFWmonitor* monitor, GLFWvidmode* mode);
GLFWbool _glfwGetGammaRampCocoa(_GLFWmonitor* monitor, GLFWgammaramp* ramp);
void _glfwSetGammaRampCocoa(_GLFWmonitor* monitor, const GLFWgammaramp* ramp);
void _glfwPollMonitorsCocoa(void);
void _glfwSetVideoModeCocoa(_GLFWmonitor* monitor, const GLFWvidmode* desired);
void _glfwRestoreVideoModeCocoa(_GLFWmonitor* monitor);
float _glfwTransformYCocoa(float y);
void* _glfwLoadLocalVulkanLoaderCocoa(void);
GLFWbool _glfwInitNSGL(void);
void _glfwTerminateNSGL(void);
GLFWbool _glfwCreateContextNSGL(_GLFWwindow* window,
const _GLFWctxconfig* ctxconfig,
const _GLFWfbconfig* fbconfig);
void _glfwDestroyContextNSGL(_GLFWwindow* window);

57
thirdparty/glfw/src/cocoa_time.c vendored
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@ -1,57 +0,0 @@
//========================================================================
// GLFW 3.5 macOS - www.glfw.org
//------------------------------------------------------------------------
// Copyright (c) 2009-2016 Camilla Löwy <elmindreda@glfw.org>
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would
// be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
// be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
//========================================================================
#include "internal.h"
#if defined(GLFW_BUILD_COCOA_TIMER)
#include <mach/mach_time.h>
//////////////////////////////////////////////////////////////////////////
////// GLFW platform API //////
//////////////////////////////////////////////////////////////////////////
void _glfwPlatformInitTimer(void)
{
mach_timebase_info_data_t info;
mach_timebase_info(&info);
_glfw.timer.ns.frequency = (info.denom * 1e9) / info.numer;
}
uint64_t _glfwPlatformGetTimerValue(void)
{
return mach_absolute_time();
}
uint64_t _glfwPlatformGetTimerFrequency(void)
{
return _glfw.timer.ns.frequency;
}
#endif // GLFW_BUILD_COCOA_TIMER

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thirdparty/glfw/src/cocoa_time.h vendored
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@ -1,35 +0,0 @@
//========================================================================
// GLFW 3.5 macOS - www.glfw.org
//------------------------------------------------------------------------
// Copyright (c) 2009-2021 Camilla Löwy <elmindreda@glfw.org>
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would
// be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
// be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
//========================================================================
#define GLFW_COCOA_LIBRARY_TIMER_STATE _GLFWtimerNS ns;
// Cocoa-specific global timer data
//
typedef struct _GLFWtimerNS
{
uint64_t frequency;
} _GLFWtimerNS;

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