INSANEMODE/yuzu-android
1
0
Fork 0
mirror of https://github.com/yuzu-emu/yuzu-android.git synced 2025-06-19 13:18:01 -05:00
Code Issues Packages Projects Releases Wiki Activity

shader_ir/decode: Fix half float pre-operations and remove MetaHalfArithmetic

Browse Source 
Operations done before the main half float operation (like HAdd) were
managing a packed value instead of the unpacked one. Adding an unpacked
operation allows us to drop the per-operand MetaHalfArithmetic entry,
simplifying the code overall.
This commit is contained in:
ReinUsesLisp
2019-04-15 19:48:11 -03:00
parent abcbcb1b2a
commit f43995ec53
9 changed files with 72 additions and 85 deletions
Download Patch File Download Diff File Expand all files Collapse all files

51
src/video_core/renderer_opengl/gl_shader_decompiler.cpp
View File

@ -121,14 +121,10 @@ std::string GetTopologyName(Tegra::Shader::OutputTopology topology) {
/// Returns true if an object has to be treated as precise
bool IsPrecise(Operation operand) {
const auto& meta = operand.GetMeta();
const auto& meta{operand.GetMeta()};
if (const auto arithmetic = std::get_if<MetaArithmetic>(&meta)) {
return arithmetic->precise;
}
if (const auto half_arithmetic = std::get_if<MetaHalfArithmetic>(&meta)) {
return half_arithmetic->precise;
}
return false;
}
@ -617,26 +613,7 @@ private:
}
std::string VisitOperand(Operation operation, std::size_t operand_index, Type type) {
const std::string value = VisitOperand(operation, operand_index);
switch (type) {
case Type::HalfFloat: {
const auto half_meta = std::get_if<MetaHalfArithmetic>(&operation.GetMeta());
ASSERT(half_meta);
switch (half_meta->types.at(operand_index)) {
case Tegra::Shader::HalfType::H0_H1:
return "toHalf2(" + value + ')';
case Tegra::Shader::HalfType::F32:
return "vec2(" + value + ')';
case Tegra::Shader::HalfType::H0_H0:
return "vec2(toHalf2(" + value + ")[0])";
case Tegra::Shader::HalfType::H1_H1:
return "vec2(toHalf2(" + value + ")[1])";
}
}
default:
return CastOperand(value, type);
}
return CastOperand(VisitOperand(operation, operand_index), type);
}
std::string CastOperand(const std::string& value, Type type) const {
@ -650,9 +627,7 @@ private:
case Type::Uint:
return "ftou(" + value + ')';
case Type::HalfFloat:
// Can't be handled as a stand-alone value
UNREACHABLE();
return value;
return "toHalf2(" + value + ')';
}
UNREACHABLE();
return value;
@ -1073,6 +1048,25 @@ private:
return ApplyPrecise(operation, BitwiseCastResult(clamped, Type::HalfFloat));
}
std::string HUnpack(Operation operation) {
const std::string operand{VisitOperand(operation, 0, Type::HalfFloat)};
const auto value = [&]() -> std::string {
switch (std::get<Tegra::Shader::HalfType>(operation.GetMeta())) {
case Tegra::Shader::HalfType::H0_H1:
return operand;
case Tegra::Shader::HalfType::F32:
return "vec2(fromHalf2(" + operand + "))";
case Tegra::Shader::HalfType::H0_H0:
return "vec2(" + operand + "[0])";
case Tegra::Shader::HalfType::H1_H1:
return "vec2(" + operand + "[1])";
}
UNREACHABLE();
return "0";
}();
return "fromHalf2(" + value + ')';
}
std::string HMergeF32(Operation operation) {
return "float(toHalf2(" + Visit(operation[0]) + ")[0])";
}
@ -1508,6 +1502,7 @@ private:
&GLSLDecompiler::Absolute<Type::HalfFloat>,
&GLSLDecompiler::HNegate,
&GLSLDecompiler::HClamp,
&GLSLDecompiler::HUnpack,
&GLSLDecompiler::HMergeF32,
&GLSLDecompiler::HMergeH0,
&GLSLDecompiler::HMergeH1,