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GLES: Use mod() not fmod() in depal shaders.

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Unknown W. Brackets 2023-01-02 13:25:40 -08:00
parent 5180486ded
commit c8728a12d0
1 changed files with 4 additions and 4 deletions
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8
GPU/Common/DepalettizeShaderCommon.cpp
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@ -193,7 +193,7 @@ void GenerateDepalShaderFloat(ShaderWriter &writer, const DepalConfig &config) {
if (rgba_shift == 0 && mask == 0xFF) {
sprintf(lookupMethod, "index.%c", rgba[shift]);
} else {
sprintf(lookupMethod, "fmod(index.%c * %f, %d.0)", rgba[shift], 255.99f / (1 << rgba_shift), mask + 1);
sprintf(lookupMethod, "mod(index.%c * %f, %d.0)", rgba[shift], 255.99f / (1 << rgba_shift), mask + 1);
index_multiplier = 1.0f / 256.0f;
// Format was OK if there weren't bits from another component.
formatOK = mask <= 255 - (1 << rgba_shift);
@ -211,7 +211,7 @@ void GenerateDepalShaderFloat(ShaderWriter &writer, const DepalConfig &config) {
index_multiplier = 15.0f / 256.0f;
} else {
// Let's divide and mod to get the right bits. A common case is shift=0, mask=01.
sprintf(lookupMethod, "fmod(index.%c * %f, %d.0)", rgba[shift], 15.99f / (1 << rgba_shift), mask + 1);
sprintf(lookupMethod, "mod(index.%c * %f, %d.0)", rgba[shift], 15.99f / (1 << rgba_shift), mask + 1);
index_multiplier = 1.0f / 256.0f;
formatOK = mask <= 15 - (1 << rgba_shift);
}
@ -231,7 +231,7 @@ void GenerateDepalShaderFloat(ShaderWriter &writer, const DepalConfig &config) {
} else {
// We just need to divide the right component by the right value, and then mod against the mask.
// A common case is shift=1, mask=0f.
sprintf(lookupMethod, "fmod(index.%c * %f, %d.0)", rgba[shift], ((float)multipliers[shift] + 0.99f) / (1 << rgba_shift), mask + 1);
sprintf(lookupMethod, "mod(index.%c * %f, %d.0)", rgba[shift], ((float)multipliers[shift] + 0.99f) / (1 << rgba_shift), mask + 1);
index_multiplier = 1.0f / 256.0f;
formatOK = mask <= multipliers[shift] - (1 << rgba_shift);
}
@ -251,7 +251,7 @@ void GenerateDepalShaderFloat(ShaderWriter &writer, const DepalConfig &config) {
index_multiplier = 1.0f / 256.0f;
} else {
// A isn't possible here.
sprintf(lookupMethod, "fmod(index.%c * %f, %d.0)", rgba[shift], 31.99f / (1 << rgba_shift), mask + 1);
sprintf(lookupMethod, "mod(index.%c * %f, %d.0)", rgba[shift], 31.99f / (1 << rgba_shift), mask + 1);
index_multiplier = 1.0f / 256.0f;
formatOK = mask <= 31 - (1 << rgba_shift);
}