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shader/execution: Implement vector component selection tests
Bug: #3170
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src/webgpu/shader/execution/expression/access/vector/components.spec.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,117 @@ | ||
| export const description = ` | ||
| Execution Tests for vector component selection expressions | ||
| `; | ||
|
|
||
| import { makeTestGroup } from '../../../../../../common/framework/test_group.js'; | ||
| import { GPUTest } from '../../../../../gpu_test.js'; | ||
| import { ScalarValue, Type, VectorValue, f32 } from '../../../../../util/conversion.js'; | ||
| import { allInputSources, basicExpressionBuilder, run } from '../../expression.js'; | ||
|
|
||
| export const g = makeTestGroup(GPUTest); | ||
|
|
||
| /** @returns the full permutation of component indices used to component select a vector of width 'n' */ | ||
| function indices(n: number) { | ||
| const out: number[][] = []; | ||
| for (let width = 1; width < n; width++) { | ||
| let generate = (swizzle: number[]) => { | ||
| out.push(swizzle); | ||
| }; | ||
| for (let i = 0; i < width; i++) { | ||
| const next = generate; | ||
| generate = (swizzle: number[]) => { | ||
| for (let j = 0; j < width; j++) { | ||
| next([...swizzle, j]); | ||
| } | ||
| }; | ||
| } | ||
| generate([]); | ||
| } | ||
| return out; | ||
| } | ||
|
|
||
| g.test('concrete_scalar') | ||
| .specURL('https://www.w3.org/TR/WGSL/#vector-access-expr') | ||
| .desc(`Test vector component selection of concrete vectors`) | ||
| .params(u => | ||
| u | ||
| .combine('inputSource', allInputSources) | ||
| .combine('elementType', ['i32', 'u32', 'f32', 'f16'] as const) | ||
| .combine('width', [2, 3, 4] as const) | ||
| .combine('components', ['rgba', 'xyzw'] as const) | ||
| .beginSubcases() | ||
| .expand('indices', u => indices(u.width)) | ||
| ) | ||
| .beforeAllSubcases(t => { | ||
| if (t.params.elementType === 'f16') { | ||
| t.selectDeviceOrSkipTestCase('shader-f16'); | ||
| } | ||
| }) | ||
| .fn(async t => { | ||
| const elementType = Type[t.params.elementType]; | ||
| const vectorType = Type.vec(t.params.width, elementType); | ||
| const elementValues = (i: number) => (i + 1) * 10; | ||
| const elements: ScalarValue[] = []; | ||
| for (let i = 0; i < t.params.width; i++) { | ||
| elements.push(elementType.create(elementValues(i))); | ||
| } | ||
| const result = (() => { | ||
| if (t.params.indices.length === 1) { | ||
| return { type: elementType, value: elementType.create(elementValues(0)) }; | ||
| } else { | ||
| const vec = Type.vec(t.params.indices.length, elementType); | ||
| return { type: vec, value: vec.create(t.params.indices.map(i => elementValues(i))) }; | ||
| } | ||
| })(); | ||
|
|
||
| const components = t.params.indices.map(i => t.params.components[i]).join(''); | ||
| await run( | ||
| t, | ||
| basicExpressionBuilder(ops => `${ops[0]}.${components}`), | ||
| [vectorType], | ||
| result.type, | ||
| t.params, | ||
| [{ input: [new VectorValue(elements)], expected: result.value }] | ||
| ); | ||
| }); | ||
|
|
||
| g.test('abstract_scalar') | ||
| .specURL('https://www.w3.org/TR/WGSL/#vector-access-expr') | ||
| .desc(`Test vector component selection of abstract numeric vectors`) | ||
| .params(u => | ||
| u | ||
| .combine('elementType', ['abstract-int', 'abstract-float'] as const) | ||
| .combine('width', [2, 3, 4] as const) | ||
| .combine('components', ['rgba', 'xyzw'] as const) | ||
| .beginSubcases() | ||
| .expand('indices', u => indices(u.width)) | ||
| ) | ||
| .fn(async t => { | ||
| const elementType = Type[t.params.elementType]; | ||
| const vectorType = Type.vec(t.params.width, elementType); | ||
| const elementValues = (i: number) => (i + 1) * 0x100000000; | ||
| const elements: ScalarValue[] = []; | ||
| for (let i = 0; i < t.params.width; i++) { | ||
| elements.push(elementType.create(elementValues(i))); | ||
| } | ||
| const result = (() => { | ||
| if (t.params.indices.length === 1) { | ||
| return { type: Type.f32, value: f32(elementValues(0) / 0x100000000) }; | ||
| } else { | ||
| const vec = Type.vec(t.params.indices.length, Type.f32); | ||
| return { | ||
| type: vec, | ||
| value: vec.create(t.params.indices.map(i => elementValues(i) / 0x100000000)), | ||
| }; | ||
| } | ||
| })(); | ||
|
|
||
| const components = t.params.indices.map(i => t.params.components[i]).join(''); | ||
| await run( | ||
| t, | ||
| basicExpressionBuilder(ops => `${ops[0]}.${components} / 0x100000000`), | ||
| [vectorType], | ||
| result.type, | ||
| { inputSource: 'const' }, | ||
| [{ input: [new VectorValue(elements)], expected: result.value }] | ||
| ); | ||
| }); |
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