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Improve HTML renderer performance

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This commit is contained in:
Nic Barker 2024-08-27 10:15:21 +12:00
parent 4dcbf75328
commit eb01769ca3
2 changed files with 12 additions and 18 deletions
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13
examples/clay-official-website/index.html
View File

@ -320,6 +320,9 @@
}
element = document.createElement(elementType);
element.id = renderCommand.id.value;
if (renderCommand.commandType.value === CLAY_RENDER_COMMAND_TYPE_SCISSOR_START) {
element.style.overflow = 'hidden';
}
elementCache[renderCommand.id.value] = {
exists: true,
element: element,
@ -329,7 +332,6 @@
};
}
let dirty = false;
let elementData = elementCache[renderCommand.id.value];
element = elementData.element;
if (Array.prototype.indexOf.call(parentElement.element.children, element) !== parentElement.nextElementIndex) {
@ -342,12 +344,8 @@
elementData.exists = true;
// Don't get me started. Cheaper to compare the render command memory than to update HTML elements
if (renderCommand.commandType.value !== CLAY_RENDER_COMMAND_TYPE_SCISSOR_START && renderCommand.commandType.value !== CLAY_RENDER_COMMAND_TYPE_SCISSOR_END) {
dirty = MemoryIsDifferent(elementData.previousMemoryCommand, entireRenderCommandMemory, renderCommandSize);
parentElement.nextElementIndex++;
} else {
dirty = true;
}
let dirty = MemoryIsDifferent(elementData.previousMemoryCommand, entireRenderCommandMemory, renderCommandSize);
parentElement.nextElementIndex++;
elementData.previousMemoryCommand = entireRenderCommandMemory;
let offsetX = scissorStack.length > 0 ? scissorStack[scissorStack.length - 1].nextAllocation.x : 0;
@ -457,7 +455,6 @@
}
case (CLAY_RENDER_COMMAND_TYPE_SCISSOR_START): {
scissorStack.push({ nextAllocation: { x: renderCommand.boundingBox.x.value, y: renderCommand.boundingBox.y.value }, element, nextElementIndex: 0 });
element.style.overflow = 'hidden';
break;
}
case (CLAY_RENDER_COMMAND_TYPE_SCISSOR_END): {

17
renderers/web/html/clay-html-renderer.html
View File

@ -338,6 +338,9 @@
}
element = document.createElement(elementType);
element.id = renderCommand.id.value;
if (renderCommand.commandType.value === CLAY_RENDER_COMMAND_TYPE_SCISSOR_START) {
element.style.overflow = 'hidden';
}
elementCache[renderCommand.id.value] = {
exists: true,
element: element,
@ -347,7 +350,6 @@
};
}
let dirty = false;
let elementData = elementCache[renderCommand.id.value];
element = elementData.element;
if (Array.prototype.indexOf.call(parentElement.element.children, element) !== parentElement.nextElementIndex) {
@ -360,12 +362,8 @@
elementData.exists = true;
// Don't get me started. Cheaper to compare the render command memory than to update HTML elements
if (renderCommand.commandType.value !== CLAY_RENDER_COMMAND_TYPE_SCISSOR_START && renderCommand.commandType.value !== CLAY_RENDER_COMMAND_TYPE_SCISSOR_END) {
dirty = MemoryIsDifferent(elementData.previousMemoryCommand, entireRenderCommandMemory, renderCommandSize);
parentElement.nextElementIndex++;
} else {
dirty = true;
}
let dirty = MemoryIsDifferent(elementData.previousMemoryCommand, entireRenderCommandMemory, renderCommandSize);
parentElement.nextElementIndex++;
elementData.previousMemoryCommand = entireRenderCommandMemory;
let offsetX = scissorStack.length > 0 ? scissorStack[scissorStack.length - 1].nextAllocation.x : 0;
@ -376,7 +374,7 @@
element.style.height = Math.round(renderCommand.boundingBox.height.value) + 'px';
}
switch (renderCommand.commandType.value) {
switch(renderCommand.commandType.value) {
case (CLAY_RENDER_COMMAND_TYPE_NONE): {
break;
}
@ -384,7 +382,7 @@
let config = readStructAtAddress(renderCommand.config.value, rectangleConfigDefinition);
let configMemory = new Uint8Array(memoryDataView.buffer.slice(renderCommand.config.value, renderCommand.config.value + config.__size));
let linkContents = config.link.length.value > 0 ? textDecoder.decode(new Uint8Array(memoryDataView.buffer.slice(config.link.chars.value, config.link.chars.value + config.link.length.value))) : 0;
if (linkContents.length > 0 && (window.mouseDown || window.touchDown) && instance.exports.Clay_PointerOver(renderCommand.id.value)) {
if (linkContents.length > 0 && (window.mouseDownThisFrame || window.touchDown) && instance.exports.Clay_PointerOver(renderCommand.id.value)) {
window.location.href = linkContents;
}
if (!dirty && !MemoryIsDifferent(configMemory, elementData.previousMemoryConfig, config.__size)) {
@ -475,7 +473,6 @@
}
case (CLAY_RENDER_COMMAND_TYPE_SCISSOR_START): {
scissorStack.push({ nextAllocation: { x: renderCommand.boundingBox.x.value, y: renderCommand.boundingBox.y.value }, element, nextElementIndex: 0 });
element.style.overflow = 'hidden';
break;
}
case (CLAY_RENDER_COMMAND_TYPE_SCISSOR_END): {