1 2out vec4 sk_FragColor; 3uniform float testInput; 4uniform mat2 testMatrix2x2; 5uniform vec4 colorGreen; 6uniform vec4 colorRed; 7vec4 main() { 8 vec4 inputVal = vec4(testMatrix2x2) * vec4(1.0, 1.0, -1.0, -1.0); 9 const ivec4 expectedB = ivec4(1065353216, 1073741824, -1069547520, -1065353216); 10 return ((floatBitsToInt(inputVal.x) == 1065353216 && floatBitsToInt(inputVal.xy) == ivec2(1065353216, 1073741824)) && floatBitsToInt(inputVal.xyz) == ivec3(1065353216, 1073741824, -1069547520)) && floatBitsToInt(inputVal) == expectedB ? colorGreen : colorRed; 11} 12