| out vec4 sk_FragColor; | |
| uniform vec4 colorGreen; | |
| uniform vec4 colorRed; | |
| vec4 main() { | |
| bool ok = true; | |
| uint val = uint(colorGreen.x); | |
| uvec2 mask = uvec2(val, ~val); | |
| ivec2 imask = ivec2(~mask); | |
| mask = ~mask & uvec2(~imask); | |
| ok = ok && mask == uvec2(0u); | |
| return ok ? colorGreen : colorRed; | |
| } |