blob: 2a5637906527213f5bcdaf60ba39201eb59e3dee [file] [log] [blame]
<!DOCTYPE html>
<meta charset="utf-8">
<title>WebGPU Hello Triangles</title>
<meta name="assert" content="WebGPU correctly renders a green canvas.">
<link rel="match" href="blend-color-triangle-strip-expected.html">
<p>Pass if square canvas below is completely green.</p>
<canvas width="400" height="400"></canvas>
<script src="js/webgpu-functions.js"></script>
<script>
if (window.testRunner)
testRunner.waitUntilDone();
const shaderCode = `
#include <metal_stdlib>
using namespace metal;
struct Vertex
{
float4 position [[position]];
};
vertex Vertex vertex_main(uint vid [[vertex_id]])
{
Vertex v;
switch (vid) {
case 0:
v.position = float4(-1, 1, 0, 1);
break;
case 1:
v.position = float4(-1, -1, 0, 1);
break;
case 2:
v.position = float4(1, 1, 0, 1);
break;
default:
v.position = float4(1, -1, 0, 1);
}
return v;
}
fragment float4 fragment_main()
{
return float4(0, 1, 1, 1);
}
`;
async function test() {
const device = await getBasicDevice();
const canvas = document.querySelector("canvas");
const swapChain = createBasicSwapChain(canvas, device);
// FIXME: Replace with non-MSL shaders.
const shaderModule = device.createShaderModule({ code: shaderCode });
const colorStates = [{
format: "bgra8unorm",
alphaBlend: {
srcFactor: "blend-color",
dstFactor: "blend-color",
operation: "add"
},
colorBlend: {
srcFactor: "blend-color",
dstFactor: "blend-color",
operation: "add"
},
writeMask: GPUColorWriteBits.ALL
}];
const pipeline = createBasicPipeline(shaderModule, device, colorStates);
const commandEncoder = device.createCommandEncoder();
const passEncoder = beginBasicRenderPass(swapChain, commandEncoder);
passEncoder.setBlendColor({ r: 0, g: 1, b: 0, a: 1 });
encodeBasicCommands(passEncoder, pipeline);
const queue = device.getQueue();
queue.submit([commandEncoder.finish()]);
requestAnimationFrame(() => {
if (window.testRunner)
testRunner.notifyDone();
});
}
test();
</script>