xref: /aosp_15_r20/external/skia/resources/sksl/intrinsics/IsInf.sksl (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17) 
1uniform half2x2 testMatrix2x2;  // equals (1, 2, 3, 4)
2uniform half4 colorGreen, colorRed;
3
4half4 main(float2 coords) {
5    half4 infiniteValue = half4(testMatrix2x2) / colorGreen.r;
6    half4   finiteValue = half4(testMatrix2x2) / colorGreen.g;
7
8    return (    (isinf(infiniteValue.x))     &&
9             all(isinf(infiniteValue.xy))    &&
10             all(isinf(infiniteValue.xyz))   &&
11             all(isinf(infiniteValue.xyzw))  &&
12            !   (isinf(finiteValue  .x))     &&
13            !any(isinf(finiteValue  .xy))    &&
14            !any(isinf(finiteValue  .xyz))   &&
15            !any(isinf(finiteValue  .xyzw))) ? colorGreen : colorRed;
16}
17