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export const description = `
Execution tests for the 'dpdx' builtin function
T is f32 or vecN<f32>
fn dpdx(e:T) -> T
Partial derivative of e with respect to window x coordinates.
The result is the same as either dpdxFine(e) or dpdxCoarse(e).
`;
import { makeTestGroup } from '../../../../../../common/framework/test_group.js';
import { GPUTest } from '../../../../../gpu_test.js';
import { d } from './derivatives.cache.js';
import { runDerivativeTest } from './derivatives.js';
export const g = makeTestGroup(GPUTest);
const builtin = 'dpdx';
g.test('f32')
.specURL('https://www.w3.org/TR/WGSL/#derivative-builtin-functions')
.params(u =>
u
.combine('vectorize', [undefined, 2, 3, 4] as const)
.combine('non_uniform_discard', [false, true])
)
.fn(async t => {
const cases = await d.get('scalar');
runDerivativeTest(t, cases, builtin, t.params.non_uniform_discard, t.params.vectorize);
});
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