| #version 300 |
| |
| uniform half4 colorGreen, colorRed; |
| |
| struct S {float f1; vec2 v2; }; |
| |
| bool test_same_types(bool eq, float f1, float v2, float f3, float f4, float f5, float f6) { |
| float one = colorGreen.r + 1; |
| S a[2]; a[0].f1 = f1; a[0].v2 = vec2(v2, f3); |
| a[1].f1 = f4; a[1].v2 = vec2(f5, f6); |
| S b[2]; b[0].f1 = f1 * one; b[0].v2 = vec2(v2 * one, f3 * one); |
| b[1].f1 = f4 * one; b[1].v2 = vec2(f5 * one, f6 * one); |
| return eq ? a == b : a != b; |
| } |
| |
| bool test_diff_types(bool eq, float f1, float v2, float f3, float f4, float f5, float f6) { |
| float two = colorGreen.r + 2; |
| S a[2]; a[0].f1 = f1; a[0].v2 = vec2(v2, f3); |
| a[1].f1 = f4; a[1].v2 = vec2(f5, f6); |
| S b[2]; b[0].f1 = f1 * two; b[0].v2 = vec2(v2 * two, f3 * two); |
| b[1].f1 = f4 * two; b[1].v2 = vec2(f5 * two, f6); |
| return eq ? a == b : a != b; |
| } |
| |
| vec4 main(vec2 coords) { |
| |
| float NAN1 = colorGreen.r/colorGreen.b; |
| float NAN2 = colorGreen.b/colorGreen.r; |
| float ZP = +colorGreen.r*colorGreen.b; |
| float ZM = -colorGreen.r*colorGreen.b; |
| float F42 = colorGreen.g * 42.0; |
| float F43 = colorGreen.g * 43.0; |
| float F44 = colorGreen.g * 44.0; |
| float F45 = colorGreen.g * 45.0; |
| float F46 = colorGreen.g * 46.0; |
| float F47 = colorGreen.g * 47.0; |
| |
| bool EQ = true; // Tests for == |
| bool NE = false; // Tests for != |
| |
| return true |
| && test_same_types(EQ, F42, ZM, ZP, F43, F44, F45) // equal, including -0 and +0 values |
| && !test_same_types(NE, F42, ZM, ZP, F43, F44, F45) // not (not equal) |
| && test_same_types(NE, F42, NAN1, NAN2, F43, F44, F45) // NA values always not equal |
| && !test_same_types(EQ, F42, NAN1, NAN2, F43, F44, F45) |
| && test_diff_types(NE, F42, F43, F44, F45, F46, F47) // one of the normal values not equal |
| && !test_diff_types(EQ, F42, F43, F44, F45, F46, F47) |
| && test_diff_types(NE, NAN1, ZM, ZP, F42, F43, F44) // one of the normal values not equal |
| && !test_diff_types(EQ, NAN1, ZM, ZP, F42, F43, F44) |
| ? colorGreen : colorRed; |
| } |