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rsx/fp: Use precomputed masks instead of translating from strings

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kd-11 2025-11-17 21:38:57 +03:00
parent b65687e1e9
commit a914fc8ca1
1 changed files with 21 additions and 29 deletions
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50
rpcs3/Emu/RSX/Program/FragmentProgramDecompiler.cpp
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@ -2,6 +2,7 @@
#include "FragmentProgramDecompiler.h"
#include "ProgramStateCache.h"
#include "Emu/RSX/Common/simple_array.hpp"
#include <algorithm>
#include <unordered_set>
@ -34,31 +35,22 @@ enum VectorLane : u8
u32 FragmentProgramDecompiler::get_src_vector_mask(u32 opcode, u32 operand) const
{
auto decode = [&](const std::string& expr) -> u32
{
const auto ops = fmt::split(expr, { "," });
u32 ret = 0;
if (ops.size() <= operand)
{
return 0;
}
const auto& m = ops[operand];
if (m.find("x") != std::string::npos) ret &= 1;
if (m.find("y") != std::string::npos) ret &= (1 << 1);
if (m.find("z") != std::string::npos) ret &= (1 << 2);
if (m.find("w") != std::string::npos) ret &= (1 << 3);
return ret;
};
constexpr u32 x = 0b1;
constexpr u32 xy = 0b11;
constexpr u32 xyz = 0b111;
constexpr u32 x = 0b0001;
constexpr u32 y = 0b0010;
constexpr u32 z = 0b0100;
constexpr u32 w = 0b1000;
constexpr u32 xy = 0b0011;
constexpr u32 xyz = 0b0111;
constexpr u32 xyzw = 0b1111;
constexpr u32 use_dst_mask = 1u << 31;
const auto decode = [&](const rsx::simple_array<u32>& masks) -> u32
{
return operand < masks.size()
? masks[operand]
: 0u;
};
switch (opcode)
{
case RSX_FP_OPCODE_NOP:
@ -73,7 +65,7 @@ u32 FragmentProgramDecompiler::get_src_vector_mask(u32 opcode, u32 operand) cons
case RSX_FP_OPCODE_DP4:
return xyzw;
case RSX_FP_OPCODE_DST:
return decode("yz, yw");
return decode({ y|z, y|w });
case RSX_FP_OPCODE_MIN:
case RSX_FP_OPCODE_MAX:
return xyzw | use_dst_mask;
@ -153,19 +145,19 @@ u32 FragmentProgramDecompiler::get_src_vector_mask(u32 opcode, u32 operand) cons
case RSX_FP_OPCODE_UP16:
return x;
case RSX_FP_OPCODE_BEM:
return decode("xy, xy, xyzw");
return decode({ xy, xy, xyzw });
case RSX_FP_OPCODE_PKG:
return xyzw;
case RSX_FP_OPCODE_UPG:
return x;
case RSX_FP_OPCODE_DP2A:
return decode("xy, xy, x");
return decode({ xy, xy, x });
case RSX_FP_OPCODE_TXL:
case RSX_FP_OPCODE_TXB:
return decode("xy, x");
return decode({ xy, x });
case RSX_FP_OPCODE_TEXBEM:
case RSX_FP_OPCODE_TXPBEM:
return decode("xy, xy, xyzw"); // Coordinate generated from BEM operation
return decode({ xy, xy, xyzw }); // Coordinate generated from BEM operation
case RSX_FP_OPCODE_BEMLUM:
fmt::throw_exception("Unimplemented BEMLUM instruction"); // Unused
case RSX_FP_OPCODE_REFL:
@ -178,9 +170,9 @@ u32 FragmentProgramDecompiler::get_src_vector_mask(u32 opcode, u32 operand) cons
return xyz;
case RSX_FP_OPCODE_DIV:
case RSX_FP_OPCODE_DIVSQ:
return decode("xyzw, x");
return decode({ xyzw, x });
case RSX_FP_OPCODE_LIF:
return decode("yw");
return decode({ y|w });
case RSX_FP_OPCODE_FENCT:
case RSX_FP_OPCODE_FENCB:
case RSX_FP_OPCODE_BRK: