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Fix night vision in SOCOM games (in fact, fix the CLUT8 effect properly)

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I failed to notice that when doing the shift to apply the "texel offset"
translating CLUT8 to a CLUT16 lookup, we also need to shift the mask
used to choose color components to read.
This commit is contained in:
Henrik Rydgård 2023-04-20 23:46:45 +02:00
parent baa066c7b7
commit 913c460fe0
1 changed files with 5 additions and 1 deletions
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6
GPU/Common/DepalettizeShaderCommon.cpp
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@ -106,6 +106,10 @@ void GenerateDepalShader300(ShaderWriter &writer, const DepalConfig &config) {
writer.C(" int index = (b << 11) | (g << 5) | (r);\n");
break;
case GE_FORMAT_5551:
if (config.textureFormat == GE_TFMT_CLUT8) {
// SOCOM case. We need to make sure the next few lines load the right bits, see below.
shiftedMask <<= 8;
}
if (shiftedMask & 0x1F) writer.C(" int r = int(color.r * 31.99);\n"); else writer.C(" int r = 0;\n");
if (shiftedMask & 0x3E0) writer.C(" int g = int(color.g * 31.99);\n"); else writer.C(" int g = 0;\n");
if (shiftedMask & 0x7C00) writer.C(" int b = int(color.b * 31.99);\n"); else writer.C(" int b = 0;\n");
@ -245,7 +249,7 @@ void GenerateDepalShaderFloat(ShaderWriter &writer, const DepalConfig &config) {
break;
case GE_FORMAT_5551:
if (config.textureFormat == GE_TFMT_CLUT8 && mask == 0xFF && shift == 0) {
sprintf(lookupMethod, "index.b * 64.0 + index.g * 4.0"); // we just skip A.
sprintf(lookupMethod, "index.a * 128.0 + index.b * 64.0 + index.g * 4.0"); // we just skip A.
index_multiplier = 1.0f / 256.0f;
// SOCOM case. #16210
} else if ((mask & (mask + 1)) == 0 && shift < 16) {