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export const description = `
Execution tests for the 'smoothstep' builtin function
S is AbstractFloat, f32, f16
T is S or vecN<S>
@const fn smoothstep(low: T , high: T , x: T ) -> T
Returns the smooth Hermite interpolation between 0 and 1.
Component-wise when T is a vector.
For scalar T, the result is t * t * (3.0 - 2.0 * t), where t = clamp((x - low) / (high - low), 0.0, 1.0).
`;
import { makeTestGroup } from '../../../../../../common/framework/test_group.js';
import { GPUTest } from '../../../../../gpu_test.js';
import { TypeF32 } from '../../../../../util/conversion.js';
import { smoothStepInterval } from '../../../../../util/f32_interval.js';
import { sparseF32Range } from '../../../../../util/math.js';
import { makeCaseCache } from '../../case_cache.js';
import { allInputSources, generateTernaryToF32IntervalCases, run } from '../../expression.js';
import { builtin } from './builtin.js';
export const g = makeTestGroup(GPUTest);
export const d = makeCaseCache('smoothstep', {
f32_const: () => {
return generateTernaryToF32IntervalCases(
sparseF32Range(),
sparseF32Range(),
sparseF32Range(),
'f32-only',
smoothStepInterval
);
},
f32_non_const: () => {
return generateTernaryToF32IntervalCases(
sparseF32Range(),
sparseF32Range(),
sparseF32Range(),
'unfiltered',
smoothStepInterval
);
},
});
g.test('abstract_float')
.specURL('https://www.w3.org/TR/WGSL/#float-builtin-functions')
.desc(`abstract float tests`)
.params(u =>
u.combine('inputSource', allInputSources).combine('vectorize', [undefined, 2, 3, 4] as const)
)
.unimplemented();
g.test('f32')
.specURL('https://www.w3.org/TR/WGSL/#float-builtin-functions')
.desc(`f32 tests`)
.params(u =>
u.combine('inputSource', allInputSources).combine('vectorize', [undefined, 2, 3, 4] as const)
)
.fn(async t => {
const cases = await d.get(t.params.inputSource === 'const' ? 'f32_const' : 'f32_non_const');
await run(t, builtin('smoothstep'), [TypeF32, TypeF32, TypeF32], TypeF32, t.params, cases);
});
g.test('f16')
.specURL('https://www.w3.org/TR/WGSL/#float-builtin-functions')
.desc(`f16 tests`)
.params(u =>
u.combine('inputSource', allInputSources).combine('vectorize', [undefined, 2, 3, 4] as const)
)
.unimplemented();
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