blob: 428f6a752b67b0e760bc5e2324b3cdabd8b96f23 [file] [log] [blame]
<!DOCTYPE html>
<html>
<head>
<script src="../js/webgpu-functions.js"></script>
<script src="../../resources/js-test-pre.js"></script>
</head>
<body>
<script>
const shaderSource = `
[numthreads(1, 1, 1)]
compute void computeShader(device float[] buffer : register(u0), float3 threadID : SV_DispatchThreadID) {
float4 vec;
vec[0] += 42.0;
buffer[uint(threadID.x)] = vec[0];
}
`;
async function start(device) {
const shaderModule = device.createShaderModule({code: shaderSource});
const computeStage = {module: shaderModule, entryPoint: "computeShader"};
const bindGroupLayoutDescriptor = {bindings: [{binding: 0, visibility: 7, type: "storage-buffer"}]};
const bindGroupLayout = device.createBindGroupLayout(bindGroupLayoutDescriptor);
const pipelineLayoutDescriptor = {bindGroupLayouts: [bindGroupLayout]};
const pipelineLayout = device.createPipelineLayout(pipelineLayoutDescriptor);
const computePipelineDescriptor = {computeStage, layout: pipelineLayout};
const computePipeline = device.createComputePipeline(computePipelineDescriptor);
const size = Float32Array.BYTES_PER_ELEMENT * 1;
const bufferDescriptor = {size, usage: GPUBufferUsage.MAP_WRITE | GPUBufferUsage.COPY_SRC};
const buffer = device.createBuffer(bufferDescriptor);
const bufferArrayBuffer = await buffer.mapWriteAsync();
const bufferFloat32Array = new Float32Array(bufferArrayBuffer);
bufferFloat32Array[0] = 0;
buffer.unmap();
const resultsBufferDescriptor = {size, usage: GPUBufferUsage.STORAGE | GPUBufferUsage.COPY_DST | GPUBufferUsage.MAP_READ};
const resultsBuffer = device.createBuffer(resultsBufferDescriptor);
const bufferBinding = {buffer: resultsBuffer, size};
const bindGroupBinding = {binding: 0, resource: bufferBinding};
const bindGroupDescriptor = {layout: bindGroupLayout, bindings: [bindGroupBinding]};
const bindGroup = device.createBindGroup(bindGroupDescriptor);
const commandEncoder = device.createCommandEncoder(); // {}
commandEncoder.copyBufferToBuffer(buffer, 0, resultsBuffer, 0, size);
const computePassEncoder = commandEncoder.beginComputePass();
computePassEncoder.setPipeline(computePipeline);
computePassEncoder.setBindGroup(0, bindGroup);
computePassEncoder.dispatch(1, 1, 1);
computePassEncoder.endPass();
const commandBuffer = commandEncoder.finish();
device.getQueue().submit([commandBuffer]);
const resultsArrayBuffer = await resultsBuffer.mapReadAsync();
const resultsFloat32Array = new Float32Array(resultsArrayBuffer);
if (resultsFloat32Array[0] == 42)
testPassed("");
else
testFailed("");
resultsBuffer.unmap();
}
window.jsTestIsAsync = true;
getBasicDevice().then(function(device) {
start(device).then(function() {
finishJSTest();
}, function() {
testFailed("");
finishJSTest();
});
}, function() {
testPassed("");
finishJSTest();
});
</script>
<script src="../../resources/js-test-post.js"></script>
</body>
</html>