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export const description = `
Execution tests for the 'refract' builtin function
T is vecN<I>
I is AbstractFloat, f32, or f16
@const fn refract(e1: T ,e2: T ,e3: I ) -> T
For the incident vector e1 and surface normal e2, and the ratio of indices of
refraction e3, let k = 1.0 -e3*e3* (1.0 - dot(e2,e1) * dot(e2,e1)).
If k < 0.0, returns the refraction vector 0.0, otherwise return the refraction
vector e3*e1- (e3* dot(e2,e1) + sqrt(k)) *e2.
`;
import { makeTestGroup } from '../../../../../../common/framework/test_group.js';
import { ROArrayArray } from '../../../../../../common/util/types.js';
import { GPUTest } from '../../../../../gpu_test.js';
import { toVector, TypeF32, TypeF16, TypeVec } from '../../../../../util/conversion.js';
import { FP, FPKind } from '../../../../../util/floating_point.js';
import {
sparseVectorF32Range,
sparseVectorF16Range,
sparseF32Range,
sparseF16Range,
} from '../../../../../util/math.js';
import { makeCaseCache } from '../../case_cache.js';
import { allInputSources, Case, IntervalFilter, run } from '../../expression.js';
import { builtin } from './builtin.js';
export const g = makeTestGroup(GPUTest);
// Using a bespoke implementation of make*Case and generate*Cases here
// since refract is the only builtin with the API signature
// (vec, vec, scalar) -> vec
/**
* @returns a Case for `refract`
* @param kind what type of floating point numbers to operate on
* @param i the `i` param for the case
* @param s the `s` param for the case
* @param r the `r` param for the case
* @param check what interval checking to apply
* */
function makeCase(
kind: FPKind,
i: readonly number[],
s: readonly number[],
r: number,
check: IntervalFilter
): Case | undefined {
const fp = FP[kind];
i = i.map(fp.quantize);
s = s.map(fp.quantize);
r = fp.quantize(r);
const vectors = fp.refractInterval(i, s, r);
if (check === 'finite' && vectors.some(e => !e.isFinite())) {
return undefined;
}
return {
input: [toVector(i, fp.scalarBuilder), toVector(s, fp.scalarBuilder), fp.scalarBuilder(r)],
expected: fp.refractInterval(i, s, r),
};
}
/**
* @returns an array of Cases for `refract`
* @param kind what type of floating point numbers to operate on
* @param param_is array of inputs to try for the `i` param
* @param param_ss array of inputs to try for the `s` param
* @param param_rs array of inputs to try for the `r` param
* @param check what interval checking to apply
*/
function generateCases(
kind: FPKind,
param_is: ROArrayArray<number>,
param_ss: ROArrayArray<number>,
param_rs: readonly number[],
check: IntervalFilter
): Case[] {
// Cannot use `cartesianProduct` here due to heterogeneous param types
return param_is
.flatMap(i => {
return param_ss.flatMap(s => {
return param_rs.map(r => {
return makeCase(kind, i, s, r, check);
});
});
})
.filter((c): c is Case => c !== undefined);
}
// Cases: f32_vecN_[non_]const
const f32_vec_cases = ([2, 3, 4] as const)
.flatMap(n =>
([true, false] as const).map(nonConst => ({
[`f32_vec${n}_${nonConst ? 'non_const' : 'const'}`]: () => {
return generateCases(
'f32',
sparseVectorF32Range(n),
sparseVectorF32Range(n),
sparseF32Range(),
nonConst ? 'unfiltered' : 'finite'
);
},
}))
)
.reduce((a, b) => ({ ...a, ...b }), {});
// Cases: f16_vecN_[non_]const
const f16_vec_cases = ([2, 3, 4] as const)
.flatMap(n =>
([true, false] as const).map(nonConst => ({
[`f16_vec${n}_${nonConst ? 'non_const' : 'const'}`]: () => {
return generateCases(
'f16',
sparseVectorF16Range(n),
sparseVectorF16Range(n),
sparseF16Range(),
nonConst ? 'unfiltered' : 'finite'
);
},
}))
)
.reduce((a, b) => ({ ...a, ...b }), {});
export const d = makeCaseCache('refract', {
...f32_vec_cases,
...f16_vec_cases,
});
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', [2, 3, 4] as const))
.unimplemented();
g.test('f32_vec2')
.specURL('https://www.w3.org/TR/WGSL/#numeric-builtin-functions')
.desc(`f32 tests using vec2s`)
.params(u => u.combine('inputSource', allInputSources))
.fn(async t => {
const cases = await d.get(
t.params.inputSource === 'const' ? 'f32_vec2_const' : 'f32_vec2_non_const'
);
await run(
t,
builtin('refract'),
[TypeVec(2, TypeF32), TypeVec(2, TypeF32), TypeF32],
TypeVec(2, TypeF32),
t.params,
cases
);
});
g.test('f32_vec3')
.specURL('https://www.w3.org/TR/WGSL/#numeric-builtin-functions')
.desc(`f32 tests using vec3s`)
.params(u => u.combine('inputSource', allInputSources))
.fn(async t => {
const cases = await d.get(
t.params.inputSource === 'const' ? 'f32_vec3_const' : 'f32_vec3_non_const'
);
await run(
t,
builtin('refract'),
[TypeVec(3, TypeF32), TypeVec(3, TypeF32), TypeF32],
TypeVec(3, TypeF32),
t.params,
cases
);
});
g.test('f32_vec4')
.specURL('https://www.w3.org/TR/WGSL/#numeric-builtin-functions')
.desc(`f32 tests using vec4s`)
.params(u => u.combine('inputSource', allInputSources))
.fn(async t => {
const cases = await d.get(
t.params.inputSource === 'const' ? 'f32_vec4_const' : 'f32_vec4_non_const'
);
await run(
t,
builtin('refract'),
[TypeVec(4, TypeF32), TypeVec(4, TypeF32), TypeF32],
TypeVec(4, TypeF32),
t.params,
cases
);
});
g.test('f16_vec2')
.specURL('https://www.w3.org/TR/WGSL/#numeric-builtin-functions')
.desc(`f16 tests using vec2s`)
.params(u => u.combine('inputSource', allInputSources))
.beforeAllSubcases(t => {
t.selectDeviceOrSkipTestCase('shader-f16');
})
.fn(async t => {
const cases = await d.get(
t.params.inputSource === 'const' ? 'f16_vec2_const' : 'f16_vec2_non_const'
);
await run(
t,
builtin('refract'),
[TypeVec(2, TypeF16), TypeVec(2, TypeF16), TypeF16],
TypeVec(2, TypeF16),
t.params,
cases
);
});
g.test('f16_vec3')
.specURL('https://www.w3.org/TR/WGSL/#numeric-builtin-functions')
.desc(`f16 tests using vec3s`)
.params(u => u.combine('inputSource', allInputSources))
.beforeAllSubcases(t => {
t.selectDeviceOrSkipTestCase('shader-f16');
})
.fn(async t => {
const cases = await d.get(
t.params.inputSource === 'const' ? 'f16_vec3_const' : 'f16_vec3_non_const'
);
await run(
t,
builtin('refract'),
[TypeVec(3, TypeF16), TypeVec(3, TypeF16), TypeF16],
TypeVec(3, TypeF16),
t.params,
cases
);
});
g.test('f16_vec4')
.specURL('https://www.w3.org/TR/WGSL/#numeric-builtin-functions')
.desc(`f16 tests using vec4s`)
.params(u => u.combine('inputSource', allInputSources))
.beforeAllSubcases(t => {
t.selectDeviceOrSkipTestCase('shader-f16');
})
.fn(async t => {
const cases = await d.get(
t.params.inputSource === 'const' ? 'f16_vec4_const' : 'f16_vec4_non_const'
);
await run(
t,
builtin('refract'),
[TypeVec(4, TypeF16), TypeVec(4, TypeF16), TypeF16],
TypeVec(4, TypeF16),
t.params,
cases
);
});
|
