dom/webgpu/tests/cts/checkout/src/webgpu/shader/execution/expression/call/builtin/textureNumSamples.spec.ts


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export const description = `
Execution tests for the 'textureNumSamples' builtin function

Returns the number samples per texel in a multisampled texture.
`;

import { makeTestGroup } from '../../../../../../common/framework/test_group.js';
import { GPUTest } from '../../../../../gpu_test.js';

export const g = makeTestGroup(GPUTest);

g.test('sampled')
  .specURL('https://www.w3.org/TR/WGSL/#texturenumsamples')
  .desc(
    `
T, a sampled type.

fn textureNumSamples(t: texture_multisampled_2d<T>) -> u32

Parameters
 * t The multisampled texture.
`
  )
  .params(u => u.beginSubcases().combine('sampled_type', ['f32-only', 'i32', 'u32'] as const))
  .unimplemented();

g.test('depth')
  .specURL('https://www.w3.org/TR/WGSL/#texturenumsamples')
  .desc(
    `
fn textureNumSamples(t: texture_depth_multisampled_2d) -> u32

Parameters
 * t The multisampled texture.
`
  )
  .unimplemented();