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GLES: Implement logic ops via fb fetch

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wheremyfoodat 2024-10-13 22:18:17 +03:00
parent 96f684e51c
commit 511e05becf
8 changed files with 89 additions and 6 deletions
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5
include/PICA/pica_frag_config.hpp
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@ -17,6 +17,7 @@ namespace PICA {
// enable == off means a CompareFunction of Always
BitField<0, 3, CompareFunction> alphaTestFunction;
BitField<3, 1, u32> depthMapEnable;
BitField<4, 4, LogicOpMode> logicOpMode;
};
};
@ -214,6 +215,10 @@ namespace PICA {
(alphaTestConfig & 1) ? static_cast<PICA::CompareFunction>(alphaTestFunction) : PICA::CompareFunction::Always;
outConfig.depthMapEnable = regs[InternalRegs::DepthmapEnable] & 1;
// Shows if blending is enabled. If it is not enabled, then logic ops are enabled instead
const bool blendingEnabled = (regs[InternalRegs::ColourOperation] & (1 << 8)) != 0;
outConfig.logicOpMode = blendingEnabled ? LogicOpMode::Copy : LogicOpMode(Helpers::getBits<0, 4>(regs[InternalRegs::LogicOp]));
texConfig.texUnitConfig = regs[InternalRegs::TexUnitCfg];
texConfig.texEnvUpdateBuffer = regs[InternalRegs::TexEnvUpdateBuffer];