submodule/skia/resources/sksl/shared/SwizzleByIndex.sksl

   1 uniform half4 testInputs, colorBlack, colorGreen, colorRed;
   2
   3 half4 non_constant_swizzle() {
   4     half4 v = half4(testInputs);
   5     int4 i = int4(colorBlack);
   6     half x = v[i[0]];
   7     half y = v[i[1]];
   8     half z = v[i[2]];
   9     half w = v[i[3]];
  10     return half4(x, y, z, w); // -1.25, -1.25, -1.25, 0
  11 }
  12
  13 half4 main(float2 coords) {
  14     return non_constant_swizzle() == half4(-1.25, -1.25, -1.25, 0) ? colorGreen : colorRed;
  15 }