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content / test / data / gpu / pixel_webgpu_canvas_format_reinterpretation.html [blame]
<!DOCTYPE html>
<html>
<!--
Clears a WebGPU canvas to color(linear-srgb 234 51 35).
When displayed, this appears as rgb(246 124 104).
Display the canvas next to the correct color and a likely incorrect color.
-->
<head>
<style type="text/css">
.nomargin {
margin: 0;
}
</style>
<script type="text/javascript">
var g_swapsBeforeAck = 15;
function waitForFinish() {
if (g_swapsBeforeAck == 0) {
sendResult("SUCCESS");
} else {
g_swapsBeforeAck--;
window.requestAnimationFrame(waitForFinish);
}
}
function sendResult(status) {
if (window.domAutomationController) {
window.domAutomationController.send(status);
} else {
console.log(status);
}
}
var g_swapsBeforeAck = 15;
function waitForFinish() {
if (g_swapsBeforeAck == 0) {
sendResult("SUCCESS");
} else {
g_swapsBeforeAck--;
window.requestAnimationFrame(waitForFinish);
}
}
async function main() {
const canvas = document.getElementById('canvas_gpu');
const adapter = await navigator.gpu?.requestAdapter();
const device = await adapter?.requestDevice();
const context = canvas.getContext('webgpu');
if (!device || !context) {
console.error("Failed to initialize WebGPU");
sendResult("FAILURE");
}
context.configure({
device: device,
format: 'bgra8unorm',
viewFormats: ['bgra8unorm-srgb'],
usage: GPUTextureUsage.RENDER_ATTACHMENT,
alphaMode: 'premultiplied',
});
const renderPassDescriptor = {
colorAttachments: [
{
view: context.getCurrentTexture().createView({
format: 'bgra8unorm-srgb'
}),
clearValue: { r: 234 / 255, g: 51 / 255, b: 35 / 255, a: 1.0 },
loadOp: 'clear',
storeOp: 'store',
},
],
};
const commandEncoder = device.createCommandEncoder();
const passEncoder = commandEncoder.beginRenderPass(renderPassDescriptor);
passEncoder.end();
device.queue.submit([commandEncoder.finish()]);
waitForFinish();
}
</script>
</head>
<body onload="main()" style="background:white;">
<canvas id="canvas_gpu" style="width:150px; height:150px; position:absolute; top:0px; left:0px; background: rgb(0% 100% 0%);"></canvas>
<div style="width:150px; height:150px; position:absolute; top:150px; left:0px; background: rgb(234 51 35);">
<p>The canvas above SHOULD NOT match this color</p>
</div>
<div style="width:150px; height:150px; position:absolute; top:0px; left:150px; background: rgb(246 124 104);">
<p>The canvas to the left SHOULD match this color</p>
</div>
</body>
</html>