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import { assert, assertEquals, unitTest } from "./test_util.ts";
let isCI: boolean;
try {
isCI = (Deno.env.get("CI")?.length ?? 0) > 0;
} catch {
isCI = true;
}
// Skip this test on linux CI, because the vulkan emulator is not good enough
// yet, and skip on macOS because these do not have virtual GPUs.
unitTest({
perms: { read: true, env: true },
ignore: (Deno.build.os === "linux" || Deno.build.os === "darwin") && isCI,
}, async function webgpuComputePass() {
const adapter = await navigator.gpu.requestAdapter();
assert(adapter);
const numbers = [1, 4, 3, 295];
const device = await adapter.requestDevice();
assert(device);
const shaderCode = await Deno.readTextFile(
"cli/tests/testdata/webgpu_computepass_shader.wgsl",
);
const shaderModule = device.createShaderModule({
code: shaderCode,
});
const size = new Uint32Array(numbers).byteLength;
const stagingBuffer = device.createBuffer({
size: size,
usage: 1 | 8,
});
const storageBuffer = device.createBuffer({
label: "Storage Buffer",
size: size,
usage: 0x80 | 8 | 4,
mappedAtCreation: true,
});
const buf = new Uint32Array(storageBuffer.getMappedRange());
buf.set(numbers);
storageBuffer.unmap();
const computePipeline = device.createComputePipeline({
compute: {
module: shaderModule,
entryPoint: "main",
},
});
const bindGroupLayout = computePipeline.getBindGroupLayout(0);
const bindGroup = device.createBindGroup({
layout: bindGroupLayout,
entries: [
{
binding: 0,
resource: {
buffer: storageBuffer,
},
},
],
});
const encoder = device.createCommandEncoder();
const computePass = encoder.beginComputePass();
computePass.setPipeline(computePipeline);
computePass.setBindGroup(0, bindGroup);
computePass.insertDebugMarker("compute collatz iterations");
computePass.dispatch(numbers.length);
computePass.endPass();
encoder.copyBufferToBuffer(storageBuffer, 0, stagingBuffer, 0, size);
device.queue.submit([encoder.finish()]);
await stagingBuffer.mapAsync(1);
const data = stagingBuffer.getMappedRange();
assertEquals(new Uint32Array(data), new Uint32Array([0, 2, 7, 55]));
stagingBuffer.unmap();
device.destroy();
// TODO(lucacasonato): webgpu spec should add a explicit destroy method for
// adapters.
const resources = Object.keys(Deno.resources());
Deno.close(Number(resources[resources.length - 1]));
});
// Skip this test on linux CI, because the vulkan emulator is not good enough
// yet, and skip on macOS because these do not have virtual GPUs.
unitTest({
perms: { read: true, env: true },
ignore: (Deno.build.os === "linux" || Deno.build.os === "darwin") && isCI,
}, async function webgpuHelloTriangle() {
const adapter = await navigator.gpu.requestAdapter();
assert(adapter);
const device = await adapter.requestDevice();
assert(device);
const shaderCode = await Deno.readTextFile(
"cli/tests/testdata/webgpu_hellotriangle_shader.wgsl",
);
const shaderModule = device.createShaderModule({
code: shaderCode,
});
const pipelineLayout = device.createPipelineLayout({
bindGroupLayouts: [],
});
const renderPipeline = device.createRenderPipeline({
layout: pipelineLayout,
vertex: {
module: shaderModule,
entryPoint: "vs_main",
},
fragment: {
module: shaderModule,
entryPoint: "fs_main",
targets: [
{
format: "rgba8unorm-srgb",
},
],
},
});
const dimensions = {
width: 200,
height: 200,
};
const unpaddedBytesPerRow = dimensions.width * 4;
const align = 256;
const paddedBytesPerRowPadding = (align - unpaddedBytesPerRow % align) %
align;
const paddedBytesPerRow = unpaddedBytesPerRow + paddedBytesPerRowPadding;
const outputBuffer = device.createBuffer({
label: "Capture",
size: paddedBytesPerRow * dimensions.height,
usage: GPUBufferUsage.MAP_READ | GPUBufferUsage.COPY_DST,
});
const texture = device.createTexture({
label: "Capture",
size: dimensions,
format: "rgba8unorm-srgb",
usage: GPUTextureUsage.RENDER_ATTACHMENT | GPUTextureUsage.COPY_SRC,
});
const encoder = device.createCommandEncoder();
const view = texture.createView();
const renderPass = encoder.beginRenderPass({
colorAttachments: [
{
view,
storeOp: "store",
loadValue: [0, 1, 0, 1],
},
],
});
renderPass.setPipeline(renderPipeline);
renderPass.draw(3, 1);
renderPass.endPass();
encoder.copyTextureToBuffer(
{
texture,
},
{
buffer: outputBuffer,
bytesPerRow: paddedBytesPerRow,
rowsPerImage: 0,
},
dimensions,
);
const bundle = encoder.finish();
device.queue.submit([bundle]);
await outputBuffer.mapAsync(1);
const data = new Uint8Array(outputBuffer.getMappedRange());
assertEquals(
data,
await Deno.readFile("cli/tests/testdata/webgpu_hellotriangle.out"),
);
outputBuffer.unmap();
device.destroy();
// TODO(lucacasonato): webgpu spec should add a explicit destroy method for
// adapters.
const resources = Object.keys(Deno.resources());
Deno.close(Number(resources[resources.length - 1]));
});
|
