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/**
* AUTO-GENERATED - DO NOT EDIT. Source: https://github.com/gpuweb/cts
**/export const description = `
Execution tests for the 'pack4xI8Clamp' builtin function
@const fn pack4xI8Clamp(e: vec4<i32>) -> u32
Clamp each component of e in the range [-128, 127] and then pack the lower 8 bits of each component
into a u32 value. Component e[i] of the input is mapped to bits (8 * i) through (8 * (i + 7)) of the
result.
`;import { makeTestGroup } from '../../../../../../common/framework/test_group.js';
import { GPUTest } from '../../../../../gpu_test.js';
import { u32, toVector, i32, Type } from '../../../../../util/conversion.js';
import { clamp } from '../../../../../util/math.js';
import { allInputSources, run } from '../../expression.js';
import { builtin } from './builtin.js';
export const g = makeTestGroup(GPUTest);
g.test('basic').
specURL('https://www.w3.org/TR/WGSL/#pack4xI8Clamp-builtin').
desc(
`
@const fn pack4xI8Clamp(e: vec4<i32>) -> u32
`
).
params((u) => u.combine('inputSource', allInputSources)).
fn(async (t) => {
const cfg = t.params;
const pack4xI8Clamp = (vals) => {
const result = new Uint32Array(1);
for (let i = 0; i < 4; ++i) {
const clampedValue = clamp(vals[i], { min: -128, max: 127 });
result[0] |= (clampedValue & 0xff) << i * 8;
}
return result[0];
};
const testInputs = [
[0, 0, 0, 0],
[1, 2, 3, 4],
[-1, 2, 3, 4],
[1, -2, 3, 4],
[1, 2, -3, 4],
[1, 2, 3, -4],
[-1, -2, 3, 4],
[-1, 2, -3, 4],
[-1, 2, 3, -4],
[1, -2, -3, 4],
[1, -2, 3, -4],
[1, 2, -3, -4],
[-1, -2, -3, 4],
[-1, -2, 3, -4],
[-1, 2, -3, -4],
[1, -2, -3, -4],
[-1, -2, -3, -4],
[126, 127, 128, 129],
[-130, -129, -128, -127],
[127, 128, -128, -129],
[32767, 32768, -32768, -32769]];
const makeCase = (vals) => {
return { input: [toVector(vals, i32)], expected: u32(pack4xI8Clamp(vals)) };
};
const cases = testInputs.flatMap((v) => {
return [makeCase(v)];
});
await run(t, builtin('pack4xI8Clamp'), [Type.vec4i], Type.u32, cfg, cases);
});
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