xref: /aosp_15_r20/external/skia/tests/sksl/shared/SampleMask.wgsl (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
1diagnostic(off, derivative_uniformity);
2diagnostic(off, chromium.unreachable_code);
3struct FSIn {
4  @builtin(sample_mask) sk_SampleMaskIn: u32,
5};
6struct FSOut {
7  @location(0) sk_FragColor: vec4<f32>,
8  @builtin(sample_mask) sk_SampleMask: u32,
9};
10fn samplemaskin_as_color_h4(_stageIn: FSIn) -> vec4<f32> {
11  {
12    return vec4<f32>(f32(_stageIn.sk_SampleMaskIn));
13  }
14}
15fn clear_samplemask_v(_stageOut: ptr<function, FSOut>) {
16  {
17    (*_stageOut).sk_SampleMask = 0u;
18  }
19}
20fn reset_samplemask_v(_stageIn: FSIn, _stageOut: ptr<function, FSOut>) {
21  {
22    (*_stageOut).sk_SampleMask = _stageIn.sk_SampleMaskIn;
23  }
24}
25fn _skslMain(_stageIn: FSIn, _stageOut: ptr<function, FSOut>) {
26  {
27    clear_samplemask_v(_stageOut);
28    reset_samplemask_v(_stageIn, _stageOut);
29    (*_stageOut).sk_SampleMask = 4294967295u;
30    let _skTemp0 = samplemaskin_as_color_h4(_stageIn);
31    (*_stageOut).sk_FragColor = _skTemp0 * 0.00390625;
32  }
33}
34@fragment fn main(_stageIn: FSIn) -> FSOut {
35  var _stageOut: FSOut;
36  _skslMain(_stageIn, &_stageOut);
37  return _stageOut;
38}
39