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rsx/fp: Do not apply input mods to all types of inputs

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- Temp registers are confirmed to be affected
- Const registers are confirmed to be unaffected
- Varying inputs are not confirmed yet
This commit is contained in:
kd-11 2017-11-22 17:38:36 +03:00
parent 3bfdcf698d
commit 4d75e98647
1 changed files with 6 additions and 1 deletions
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7
rpcs3/Emu/RSX/Common/FragmentProgramDecompiler.cpp
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@ -334,6 +334,7 @@ void FragmentProgramDecompiler::AddCodeCond(const std::string& dst, const std::s
template<typename T> std::string FragmentProgramDecompiler::GetSRC(T src)
{
std::string ret;
bool apply_precision_modifier = !!src1.input_prec_mod;
switch (src.reg_type)
{
@ -352,6 +353,8 @@ template<typename T> std::string FragmentProgramDecompiler::GetSRC(T src)
"ssa"
};
//TODO: Investigate effect of input modifier on this type
switch (dst.src_attr_reg_num)
{
case 0x00: ret += reg_table[0]; break;
@ -373,6 +376,7 @@ template<typename T> std::string FragmentProgramDecompiler::GetSRC(T src)
case RSX_FP_REGISTER_TYPE_CONSTANT:
ret += AddConst();
apply_precision_modifier = false;
break;
case RSX_FP_REGISTER_TYPE_UNKNOWN: // ??? Used by a few games, what is it?
@ -380,6 +384,7 @@ template<typename T> std::string FragmentProgramDecompiler::GetSRC(T src)
dst.opcode, dst.HEX, src0.HEX, src1.HEX, src2.HEX);
ret += AddType3();
apply_precision_modifier = false;
break;
default:
@ -400,7 +405,7 @@ template<typename T> std::string FragmentProgramDecompiler::GetSRC(T src)
//Warning: Modifier order matters. e.g neg should be applied after precision clamping (tested with Naruto UNS)
if (src.abs) ret = "abs(" + ret + ")";
if (src1.input_prec_mod) ret = ClampValue(ret, src1.input_prec_mod);
if (apply_precision_modifier) ret = ClampValue(ret, src1.input_prec_mod);
if (src.neg) ret = "-" + ret;
return ret;