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 uvec4 expectedB = uvec4(1065353216u, 1073741824u, 3225419776u, 3229614080u); 10 return ((inputVal.x == uintBitsToFloat(expectedB.x) && inputVal.xy == uintBitsToFloat(expectedB.xy)) && inputVal.xyz == uintBitsToFloat(expectedB.xyz)) && inputVal == uintBitsToFloat(expectedB) ? colorGreen : colorRed; 11} 12