Merge d0d1e01a3f into 5a328da308

Fix merge issues on feature/sdl3-image-rendering branch.
Add support for scissor handling.

bindings/odin/clay-odin/clay.odin

@@ -317,7 +317,7 @@ ElementDeclaration :: struct {
     userData: rawptr
 }
 
-ErrorType :: enum {
+ErrorType :: enum EnumBackingType {
     TextMeasurementFunctionNotProvided,
     ArenaCapacityExceeded,
     ElementsCapacityExceeded,

clay.h

@@ -21,6 +21,11 @@
 #include <arm_neon.h>
 #endif
 
+#ifdef __JETBRAINS_IDE__
+// Help jetbrains IDEs like CLion and Rider with intellisense & debugging
+#define CLAY_IMPLEMENTATION
+#endif
+
 // -----------------------------------------
 // HEADER DECLARATIONS ---------------------
 // -----------------------------------------
@@ -1274,13 +1279,14 @@ Clay_LayoutElementHashMapItem *Clay__GetHashMapItem(uint32_t id) {
     return &Clay_LayoutElementHashMapItem_DEFAULT;
 }
 
-void Clay__GenerateIdForAnonymousElement(Clay_LayoutElement *openLayoutElement) {
+Clay_ElementId Clay__GenerateIdForAnonymousElement(Clay_LayoutElement *openLayoutElement) {
     Clay_Context* context = Clay_GetCurrentContext();
     Clay_LayoutElement *parentElement = Clay_LayoutElementArray_Get(&context->layoutElements, Clay__int32_tArray_GetValue(&context->openLayoutElementStack, context->openLayoutElementStack.length - 2));
     Clay_ElementId elementId = Clay__HashNumber(parentElement->childrenOrTextContent.children.length, parentElement->id);
     openLayoutElement->id = elementId.id;
     Clay__AddHashMapItem(elementId, openLayoutElement, 0);
     Clay__StringArray_Add(&context->layoutElementIdStrings, elementId.stringId);
+    return elementId;
 }
 
 bool Clay__ElementHasConfig(Clay_LayoutElement *layoutElement, Clay__ElementConfigType type) {
@@ -1515,11 +1521,8 @@ void Clay__ConfigureOpenElement(const Clay_ElementDeclaration declaration) {
                 .errorText = CLAY_STRING("An element was configured with CLAY_SIZING_PERCENT, but the provided percentage value was over 1.0. Clay expects a value between 0 and 1, i.e. 20% is 0.2."),
                 .userData = context->errorHandler.userData });
     }
-    if (declaration.id.id != 0) {
-        Clay__AttachId(declaration.id);
-    } else if (openLayoutElement->id == 0) {
-        Clay__GenerateIdForAnonymousElement(openLayoutElement);
-    }
+
+    Clay_ElementId openLayoutElementId = declaration.id;
 
     openLayoutElement->elementConfigs.internalArray = &context->elementConfigs.internalArray[context->elementConfigs.length];
     Clay_SharedElementConfig *sharedConfig = NULL;
@@ -1572,6 +1575,9 @@ void Clay__ConfigureOpenElement(const Clay_ElementDeclaration declaration) {
             } else if (declaration.floating.attachTo == CLAY_ATTACH_TO_ROOT) {
                 floatingConfig.parentId = Clay__HashString(CLAY_STRING("Clay__RootContainer"), 0, 0).id;
             }
+            if (!openLayoutElementId.id) {
+                openLayoutElementId = Clay__HashString(CLAY_STRING("Clay__FloatingContainer"), context->layoutElementTreeRoots.length, 0);
+            }
             Clay__LayoutElementTreeRootArray_Add(&context->layoutElementTreeRoots, CLAY__INIT(Clay__LayoutElementTreeRoot) {
                     .layoutElementIndex = Clay__int32_tArray_GetValue(&context->openLayoutElementStack, context->openLayoutElementStack.length - 1),
                     .parentId = floatingConfig.parentId,
@@ -1584,6 +1590,13 @@ void Clay__ConfigureOpenElement(const Clay_ElementDeclaration declaration) {
     if (declaration.custom.customData) {
         Clay__AttachElementConfig(CLAY__INIT(Clay_ElementConfigUnion) { .customElementConfig = Clay__StoreCustomElementConfig(declaration.custom) }, CLAY__ELEMENT_CONFIG_TYPE_CUSTOM);
     }
+
+    if (openLayoutElementId.id != 0) {
+        Clay__AttachId(openLayoutElementId);
+    } else if (openLayoutElement->id == 0) {
+        openLayoutElementId = Clay__GenerateIdForAnonymousElement(openLayoutElement);
+    }
+
     if (declaration.scroll.horizontal | declaration.scroll.vertical) {
         Clay__AttachElementConfig(CLAY__INIT(Clay_ElementConfigUnion) { .scrollElementConfig = Clay__StoreScrollElementConfig(declaration.scroll) }, CLAY__ELEMENT_CONFIG_TYPE_SCROLL);
         Clay__int32_tArray_Add(&context->openClipElementStack, (int)openLayoutElement->id);
@@ -3107,11 +3120,11 @@ void Clay__RenderDebugView(void) {
                                 CLAY({{0}}) {
                                     CLAY_TEXT(CLAY_STRING("{ left: "), infoTextConfig);
                                     CLAY_TEXT(Clay__IntToString(borderConfig->width.left), infoTextConfig);
-                                    CLAY_TEXT(CLAY_STRING("{ right: "), infoTextConfig);
+                                    CLAY_TEXT(CLAY_STRING(", right: "), infoTextConfig);
                                     CLAY_TEXT(Clay__IntToString(borderConfig->width.right), infoTextConfig);
-                                    CLAY_TEXT(CLAY_STRING("{ top: "), infoTextConfig);
+                                    CLAY_TEXT(CLAY_STRING(", top: "), infoTextConfig);
                                     CLAY_TEXT(Clay__IntToString(borderConfig->width.top), infoTextConfig);
-                                    CLAY_TEXT(CLAY_STRING("{ bottom: "), infoTextConfig);
+                                    CLAY_TEXT(CLAY_STRING(", bottom: "), infoTextConfig);
                                     CLAY_TEXT(Clay__IntToString(borderConfig->width.bottom), infoTextConfig);
                                     CLAY_TEXT(CLAY_STRING(" }"), infoTextConfig);
                                 }

examples/SDL3-simple-demo/CMakeLists.txt

@@ -34,11 +34,24 @@ message(STATUS "Using SDL_ttf via FetchContent")
 FetchContent_MakeAvailable(SDL_ttf)
 set_property(DIRECTORY "${sdl_ttf_SOURCE_DIR}" PROPERTY EXCLUDE_FROM_ALL TRUE)
 
+# Download SDL_image
+FetchContent_Declare(
+	SDL_image
+	GIT_REPOSITORY "https://github.com/libsdl-org/SDL_image.git"
+	GIT_TAG main # Slightly risky to use main branch, but it's the only one available
+	GIT_SHALLOW TRUE
+	GIT_PROGRESS TRUE
+)
+message(STATUS "Using SDL_image via FetchContent")
+FetchContent_MakeAvailable(SDL_image)
+set_property(DIRECTORY "${SDL_image_SOURCE_DIR}" PROPERTY EXCLUDE_FROM_ALL TRUE)
+
 # Example executable
 add_executable(${PROJECT_NAME} main.c)
 target_link_libraries(${PROJECT_NAME} PRIVATE
 	SDL3::SDL3
 	SDL3_ttf::SDL3_ttf
+	SDL3_image::SDL3_image
 )
 
 add_custom_command(

examples/SDL3-simple-demo/main.c

@@ -23,6 +23,8 @@ typedef struct app_state {
     ClayVideoDemo_Data demoData;
 } AppState;
 
+SDL_Surface *sample_image;
+
 static inline Clay_Dimensions SDL_MeasureText(Clay_StringSlice text, Clay_TextElementConfig *config, void *userData)
 {
     TTF_Font *font = gFonts[config->fontId];
@@ -68,6 +70,8 @@ SDL_AppResult SDL_AppInit(void **appstate, int argc, char *argv[])
 
     gFonts[FONT_ID] = font;
 
+    sample_image = IMG_Load("resources/sample.png");
+
     /* Initialize Clay */
     uint64_t totalMemorySize = Clay_MinMemorySize();
     Clay_Arena clayMemory = (Clay_Arena) {

renderers/SDL3/README

@@ -1,4 +0,0 @@
-Please note, the SDL3 renderer is not 100% feature complete. It is currently missing:
-
-- Images
-- Scroll / Scissor handling

renderers/SDL3/clay_renderer_SDL3.c

@@ -2,6 +2,7 @@
 #include <SDL3/SDL_main.h>
 #include <SDL3/SDL.h>
 #include <SDL3_ttf/SDL_ttf.h>
+#include <SDL3_image/SDL_image.h>
 
 /* This needs to be global because the "MeasureText" callback doesn't have a
  * user data parameter */
@@ -137,6 +138,8 @@ static void SDL_RenderArc(SDL_Renderer *renderer, const SDL_FPoint center, const
     }
 }
 
+SDL_Rect currentClippingRectangle;
+
 static void SDL_RenderClayCommands(SDL_Renderer *renderer, Clay_RenderCommandArray *rcommands)
 {
     for (size_t i = 0; i < rcommands->length; i++) {
@@ -232,6 +235,29 @@ static void SDL_RenderClayCommands(SDL_Renderer *renderer, Clay_RenderCommandArr
                 }
 
             } break;
+            case CLAY_RENDER_COMMAND_TYPE_SCISSOR_START: {
+                Clay_BoundingBox boundingBox = rcmd->boundingBox;
+                currentClippingRectangle = (SDL_Rect) {
+                        .x = boundingBox.x,
+                        .y = boundingBox.y,
+                        .w = boundingBox.width,
+                        .h = boundingBox.height,
+                };
+                SDL_SetRenderClipRect(renderer, &currentClippingRectangle);
+                break;
+            }
+            case CLAY_RENDER_COMMAND_TYPE_SCISSOR_END: {
+                SDL_SetRenderClipRect(renderer, NULL);
+                break;
+            }
+            case CLAY_RENDER_COMMAND_TYPE_IMAGE: {
+                Clay_ImageRenderData *config = &rcmd->renderData.image;
+                const SDL_Texture *texture = SDL_CreateTextureFromSurface(renderer, config->imageData);
+                const SDL_FRect dest = { rect.x, rect.y, rect.w, rect.h };
+
+                SDL_RenderTexture(renderer, texture, NULL, &dest);
+                break;
+            }
             default:
                 SDL_Log("Unknown render command type: %d", rcmd->commandType);
         }