| <!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 float4x4[] buffer : register(u0), float3 threadID : SV_DispatchThreadID) { |
| float4x4 result; |
| result[0] = float4(1, 2, 3, 4); |
| result[1] = float4(5, 6, 7, 8); |
| result[2] = float4(9, 10, 11, 12); |
| result[3] = float4(13, 14, 15, 16); |
| |
| float4x4 mat = buffer[0]; |
| |
| if (mat[0][0] == 0 |
| && mat[0][1] == 1 |
| && mat[0][2] == 2 |
| && mat[0][3] == 3 |
| |
| && mat[1][0] == 4 |
| && mat[1][1] == 5 |
| && mat[1][2] == 6 |
| && mat[1][3] == 7 |
| |
| && mat[2][0] == 8 |
| && mat[2][1] == 9 |
| && mat[2][2] == 10 |
| && mat[2][3] == 11 |
| |
| && mat[3][0] == 12 |
| && mat[3][1] == 13 |
| && mat[3][2] == 14 |
| && mat[3][3] == 15) { |
| buffer[0] = result; |
| } |
| } |
| `; |
| |
| 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 = Float32Array.BYTES_PER_ELEMENT * 16; |
| |
| const bufferDescriptor = {size, usage: GPUBufferUsage.MAP_WRITE | GPUBufferUsage.TRANSFER_SRC}; |
| const buffer = device.createBuffer(bufferDescriptor); |
| const bufferArrayBuffer = await buffer.mapWriteAsync(); |
| const bufferFloat32Array = new Float32Array(bufferArrayBuffer); |
| bufferFloat32Array[0] = 0; |
| bufferFloat32Array[1] = 4; |
| bufferFloat32Array[2] = 8; |
| bufferFloat32Array[3] = 12; |
| bufferFloat32Array[4] = 1; |
| bufferFloat32Array[5] = 5; |
| bufferFloat32Array[6] = 9; |
| bufferFloat32Array[7] = 13; |
| bufferFloat32Array[8] = 2; |
| bufferFloat32Array[9] = 6; |
| bufferFloat32Array[10] = 10; |
| bufferFloat32Array[11] = 14; |
| bufferFloat32Array[12] = 3; |
| bufferFloat32Array[13] = 7; |
| bufferFloat32Array[14] = 11; |
| bufferFloat32Array[15] = 15; |
| 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(2, 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] === 1 |
| && resultsFloat32Array[1] === 5 |
| && resultsFloat32Array[2] === 9 |
| && resultsFloat32Array[3] === 13 |
| |
| && resultsFloat32Array[4] === 2 |
| && resultsFloat32Array[5] === 6 |
| && resultsFloat32Array[6] === 10 |
| && resultsFloat32Array[7] === 14 |
| |
| && resultsFloat32Array[8] === 3 |
| && resultsFloat32Array[9] === 7 |
| && resultsFloat32Array[10] === 11 |
| && resultsFloat32Array[11] === 15 |
| |
| && resultsFloat32Array[12] === 4 |
| && resultsFloat32Array[13] === 8 |
| && resultsFloat32Array[14] === 12 |
| && resultsFloat32Array[15] === 16) |
| 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> |
