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export const description = `
Execution tests for the 'select' builtin function
T is scalar, abstract numeric type, or vector
@const fn select(f: T, t: T, cond: bool) -> T
Returns t when cond is true, and f otherwise.
T is scalar or abstract numeric type
@const fn select(f: vecN<T>, t: vecN<T>, cond: vecN<bool>) -> vecN<T>
Component-wise selection. Result component i is evaluated as select(f[i],t[i],cond[i]).
`;
import { makeTestGroup } from '../../../../../../common/framework/test_group.js';
import { GPUTest } from '../../../../../gpu_test.js';
import {
VectorType,
TypeVec,
TypeBool,
TypeF32,
TypeI32,
TypeU32,
f32,
i32,
u32,
False,
True,
bool,
vec2,
vec3,
vec4,
} from '../../../../../util/conversion.js';
import { run, CaseList, allInputSources } from '../../expression.js';
import { builtin } from './builtin.js';
export const g = makeTestGroup(GPUTest);
function makeBool(n: number) {
return bool((n & 1) === 1);
}
type scalarKind = 'b' | 'f' | 'i' | 'u';
const dataType = {
b: {
type: TypeBool,
constructor: makeBool,
},
f: {
type: TypeF32,
constructor: f32,
},
i: {
type: TypeI32,
constructor: i32,
},
u: {
type: TypeU32,
constructor: u32,
},
};
g.test('scalar')
.specURL('https://www.w3.org/TR/WGSL/#logical-builtin-functions')
.desc(`scalar tests`)
.params(u =>
u
.combine('inputSource', allInputSources)
.combine('component', ['b', 'f', 'i', 'u'] as const)
.combine('overload', ['scalar', 'vec2', 'vec3', 'vec4'] as const)
)
.fn(async t => {
const componentType = dataType[t.params.component as scalarKind].type;
const cons = dataType[t.params.component as scalarKind].constructor;
// Create the scalar values that will be selected from, either as scalars
// or vectors.
//
// Each boolean will select between c[k] and c[k+4]. Those values must
// always compare as different. The tricky case is boolean, where the parity
// has to be different, i.e. c[k]-c[k+4] must be odd.
const c = [0, 1, 2, 3, 5, 6, 7, 8].map(i => cons(i));
// Now form vectors that will have different components from each other.
const v2a = vec2(c[0], c[1]);
const v2b = vec2(c[4], c[5]);
const v3a = vec3(c[0], c[1], c[2]);
const v3b = vec3(c[4], c[5], c[6]);
const v4a = vec4(c[0], c[1], c[2], c[3]);
const v4b = vec4(c[4], c[5], c[6], c[7]);
const overloads = {
scalar: {
type: componentType,
cases: [
{ input: [c[0], c[1], False], expected: c[0] },
{ input: [c[0], c[1], True], expected: c[1] },
],
},
vec2: {
type: TypeVec(2, componentType),
cases: [
{ input: [v2a, v2b, False], expected: v2a },
{ input: [v2a, v2b, True], expected: v2b },
],
},
vec3: {
type: TypeVec(3, componentType),
cases: [
{ input: [v3a, v3b, False], expected: v3a },
{ input: [v3a, v3b, True], expected: v3b },
],
},
vec4: {
type: TypeVec(4, componentType),
cases: [
{ input: [v4a, v4b, False], expected: v4a },
{ input: [v4a, v4b, True], expected: v4b },
],
},
};
const overload = overloads[t.params.overload];
await run(
t,
builtin('select'),
[overload.type, overload.type, TypeBool],
overload.type,
t.params,
overload.cases
);
});
g.test('vector')
.specURL('https://www.w3.org/TR/WGSL/#logical-builtin-functions')
.desc(`vector tests`)
.params(u =>
u
.combine('inputSource', allInputSources)
.combine('component', ['b', 'f', 'i', 'u'] as const)
.combine('overload', ['vec2', 'vec3', 'vec4'] as const)
)
.fn(async t => {
const componentType = dataType[t.params.component as scalarKind].type;
const cons = dataType[t.params.component as scalarKind].constructor;
// Create the scalar values that will be selected from.
//
// Each boolean will select between c[k] and c[k+4]. Those values must
// always compare as different. The tricky case is boolean, where the parity
// has to be different, i.e. c[k]-c[k+4] must be odd.
const c = [0, 1, 2, 3, 5, 6, 7, 8].map(i => cons(i));
const T = True;
const F = False;
let tests: { dataType: VectorType; boolType: VectorType; cases: CaseList };
switch (t.params.overload) {
case 'vec2': {
const a = vec2(c[0], c[1]);
const b = vec2(c[4], c[5]);
tests = {
dataType: TypeVec(2, componentType),
boolType: TypeVec(2, TypeBool),
cases: [
{ input: [a, b, vec2(F, F)], expected: vec2(a.x, a.y) },
{ input: [a, b, vec2(F, T)], expected: vec2(a.x, b.y) },
{ input: [a, b, vec2(T, F)], expected: vec2(b.x, a.y) },
{ input: [a, b, vec2(T, T)], expected: vec2(b.x, b.y) },
],
};
break;
}
case 'vec3': {
const a = vec3(c[0], c[1], c[2]);
const b = vec3(c[4], c[5], c[6]);
tests = {
dataType: TypeVec(3, componentType),
boolType: TypeVec(3, TypeBool),
cases: [
{ input: [a, b, vec3(F, F, F)], expected: vec3(a.x, a.y, a.z) },
{ input: [a, b, vec3(F, F, T)], expected: vec3(a.x, a.y, b.z) },
{ input: [a, b, vec3(F, T, F)], expected: vec3(a.x, b.y, a.z) },
{ input: [a, b, vec3(F, T, T)], expected: vec3(a.x, b.y, b.z) },
{ input: [a, b, vec3(T, F, F)], expected: vec3(b.x, a.y, a.z) },
{ input: [a, b, vec3(T, F, T)], expected: vec3(b.x, a.y, b.z) },
{ input: [a, b, vec3(T, T, F)], expected: vec3(b.x, b.y, a.z) },
{ input: [a, b, vec3(T, T, T)], expected: vec3(b.x, b.y, b.z) },
],
};
break;
}
case 'vec4': {
const a = vec4(c[0], c[1], c[2], c[3]);
const b = vec4(c[4], c[5], c[6], c[7]);
tests = {
dataType: TypeVec(4, componentType),
boolType: TypeVec(4, TypeBool),
cases: [
{ input: [a, b, vec4(F, F, F, F)], expected: vec4(a.x, a.y, a.z, a.w) },
{ input: [a, b, vec4(F, F, F, T)], expected: vec4(a.x, a.y, a.z, b.w) },
{ input: [a, b, vec4(F, F, T, F)], expected: vec4(a.x, a.y, b.z, a.w) },
{ input: [a, b, vec4(F, F, T, T)], expected: vec4(a.x, a.y, b.z, b.w) },
{ input: [a, b, vec4(F, T, F, F)], expected: vec4(a.x, b.y, a.z, a.w) },
{ input: [a, b, vec4(F, T, F, T)], expected: vec4(a.x, b.y, a.z, b.w) },
{ input: [a, b, vec4(F, T, T, F)], expected: vec4(a.x, b.y, b.z, a.w) },
{ input: [a, b, vec4(F, T, T, T)], expected: vec4(a.x, b.y, b.z, b.w) },
{ input: [a, b, vec4(T, F, F, F)], expected: vec4(b.x, a.y, a.z, a.w) },
{ input: [a, b, vec4(T, F, F, T)], expected: vec4(b.x, a.y, a.z, b.w) },
{ input: [a, b, vec4(T, F, T, F)], expected: vec4(b.x, a.y, b.z, a.w) },
{ input: [a, b, vec4(T, F, T, T)], expected: vec4(b.x, a.y, b.z, b.w) },
{ input: [a, b, vec4(T, T, F, F)], expected: vec4(b.x, b.y, a.z, a.w) },
{ input: [a, b, vec4(T, T, F, T)], expected: vec4(b.x, b.y, a.z, b.w) },
{ input: [a, b, vec4(T, T, T, F)], expected: vec4(b.x, b.y, b.z, a.w) },
{ input: [a, b, vec4(T, T, T, T)], expected: vec4(b.x, b.y, b.z, b.w) },
],
};
break;
}
}
await run(
t,
builtin('select'),
[tests.dataType, tests.dataType, tests.boolType],
tests.dataType,
t.params,
tests.cases
);
});
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