1uniform half4 input, expected;
2uniform half4 colorGreen, colorRed;
3
4half4 main(float2 coords) {
5    const half4 constVal = half4(-1.5, -0.5, 0.5, 1.5);
6    return (roundEven(input.x)       == expected.x     &&
7            roundEven(input.xy)      == expected.xy    &&
8            roundEven(input.xyz)     == expected.xyz   &&
9            roundEven(input.xyzw)    == expected.xyzw  &&
10            roundEven(constVal.x)    == expected.x     &&
11            roundEven(constVal.xy)   == expected.xy    &&
12            roundEven(constVal.xyz)  == expected.xyz   &&
13            roundEven(constVal.xyzw) == expected.xyzw) ? colorGreen : colorRed;
14}
15