| <!DOCTYPE html> |
| <html> |
| <head> |
| <script src="../resources/js-test-pre.js"></script> |
| <script src="js/webgpu-functions.js"></script> |
| </head> |
| <body> |
| <script> |
| const shaderSource = ` |
| void fill(thread float[] array, float value) { |
| for (uint i = 0; i < array.length; i++) { |
| array[i] = value; |
| } |
| } |
| |
| [numthreads(1, 1, 1)] |
| compute void computeShader(device int[] buffer : register(u0), float3 threadID : SV_DispatchThreadID) { |
| float[1000] array; |
| if (array.length != 1000) |
| return; |
| for (uint i = 0; i < array.length; ++i) { |
| if (array[i] != 0) |
| return; |
| } |
| |
| array[0] = 0.1337; |
| if (array[0] != 0.1337) |
| return; |
| |
| thread float[] arrayPtr = @array; |
| if (arrayPtr.length != 1000) |
| return; |
| |
| fill(arrayPtr, 0.1010); |
| for (uint i = 0; i < arrayPtr.length; ++i) { |
| if (arrayPtr[i] != 0.1010) |
| return; |
| if (array[i] != 0.1010) |
| return; |
| } |
| |
| fill(@array, 0.0101); |
| for (uint i = 0; i < array.length; ++i) { |
| if (arrayPtr[i] != 0.0101) |
| return; |
| if (array[i] != 0.0101) |
| return; |
| } |
| |
| buffer[0] = 1; |
| } |
| `; |
| async function start(device) { |
| const shaderModule = device.createShaderModule({code: shaderSource, isWHLSL: true}); |
| 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 = Int32Array.BYTES_PER_ELEMENT * 1; |
| |
| const bufferDescriptor = {size, usage: GPUBufferUsage.MAP_WRITE | GPUBufferUsage.TRANSFER_SRC}; |
| const buffer = device.createBuffer(bufferDescriptor); |
| const bufferArrayBuffer = await buffer.mapWriteAsync(); |
| const bufferFloat32Array = new Int32Array(bufferArrayBuffer); |
| bufferFloat32Array[0] = 0; |
| buffer.unmap(); |
| |
| const resultsBufferDescriptor = {size, usage: GPUBufferUsage.STORAGE | GPUBufferUsage.TRANSFER_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(); |
| let resultsInt32Array = new Int32Array(resultsArrayBuffer); |
| if (resultsInt32Array[0] === 1) |
| 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> |
