lux/citra
1
0
Fork 0
mirror of https://git.h3cjp.net/H3cJP/citra.git synced 2024-11-25 01:22:54 +00:00
Code Issues Packages Projects Releases Wiki Activity

Shader: implement EX2 and LG2 in interpreter

Browse source
This commit is contained in:
aroulin 2015-08-16 11:51:21 +02:00
parent 96820ae42a
commit 638e47c04d
1 changed files with 36 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

36
src/video_core/shader/shader_interpreter.cpp
View file

@ -334,6 +334,42 @@ void RunInterpreter(UnitState<Debug>& state) {
Record<DebugDataRecord::CMP_RESULT>(state.debug, iteration, state.conditional_code);
break;
case OpCode::Id::EX2:
{
Record<DebugDataRecord::SRC1>(state.debug, iteration, src1);
Record<DebugDataRecord::DEST_IN>(state.debug, iteration, dest);
// EX2 only takes first component exp2 and writes it to all dest components
float24 ex2_res = float24::FromFloat32(std::exp2(src1[0].ToFloat32()));
for (int i = 0; i < 4; ++i) {
if (!swizzle.DestComponentEnabled(i))
continue;
dest[i] = ex2_res;
}
Record<DebugDataRecord::DEST_OUT>(state.debug, iteration, dest);
break;
}
case OpCode::Id::LG2:
{
Record<DebugDataRecord::SRC1>(state.debug, iteration, src1);
Record<DebugDataRecord::DEST_IN>(state.debug, iteration, dest);
// LG2 only takes the first component log2 and writes it to all dest components
float24 lg2_res = float24::FromFloat32(std::log2(src1[0].ToFloat32()));
for (int i = 0; i < 4; ++i) {
if (!swizzle.DestComponentEnabled(i))
continue;
dest[i] = lg2_res;
}
Record<DebugDataRecord::DEST_OUT>(state.debug, iteration, dest);
break;
}
default:
LOG_ERROR(HW_GPU, "Unhandled arithmetic instruction: 0x%02x (%s): 0x%08x",
(int)instr.opcode.Value().EffectiveOpCode(), instr.opcode.Value().GetInfo().name, instr.hex);