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 ivec4 expectedB = ivec4(1065353216, 1073741824, -1069547520, -1065353216); 10 return ((inputVal.x == intBitsToFloat(expectedB.x) && inputVal.xy == intBitsToFloat(expectedB.xy)) && inputVal.xyz == intBitsToFloat(expectedB.xyz)) && inputVal == intBitsToFloat(expectedB) ? colorGreen : colorRed; 11} 12