mirror of
https://git.suyu.dev/suyu/suyu
synced 2024-11-05 14:57:53 +00:00
319 lines
8.7 KiB
C++
319 lines
8.7 KiB
C++
// Copyright 2021 yuzu Emulator Project
|
|
// Licensed under GPLv2 or any later version
|
|
// Refer to the license.txt file included.
|
|
|
|
#include <string>
|
|
#include <string_view>
|
|
|
|
#include <fmt/format.h>
|
|
|
|
#include "shader_recompiler/backend/glsl/var_alloc.h"
|
|
#include "shader_recompiler/exception.h"
|
|
#include "shader_recompiler/frontend/ir/value.h"
|
|
|
|
namespace Shader::Backend::GLSL {
|
|
namespace {
|
|
std::string TypePrefix(GlslVarType type) {
|
|
switch (type) {
|
|
case GlslVarType::U1:
|
|
return "b_";
|
|
case GlslVarType::F16x2:
|
|
return "f16x2_";
|
|
case GlslVarType::U32:
|
|
return "u_";
|
|
case GlslVarType::S32:
|
|
return "s_";
|
|
case GlslVarType::F32:
|
|
return "f_";
|
|
case GlslVarType::S64:
|
|
return "s64_";
|
|
case GlslVarType::U64:
|
|
return "u64_";
|
|
case GlslVarType::F64:
|
|
return "d_";
|
|
case GlslVarType::U32x2:
|
|
return "u2_";
|
|
case GlslVarType::F32x2:
|
|
return "f2_";
|
|
case GlslVarType::U32x3:
|
|
return "u3_";
|
|
case GlslVarType::F32x3:
|
|
return "f3_";
|
|
case GlslVarType::U32x4:
|
|
return "u4_";
|
|
case GlslVarType::F32x4:
|
|
return "f4_";
|
|
case GlslVarType::PrecF32:
|
|
return "pf_";
|
|
case GlslVarType::PrecF64:
|
|
return "pd_";
|
|
case GlslVarType::Void:
|
|
return "";
|
|
default:
|
|
throw NotImplementedException("Type {}", type);
|
|
}
|
|
}
|
|
|
|
std::string FormatFloat(std::string_view value, IR::Type type) {
|
|
// TODO: Confirm FP64 nan/inf
|
|
if (type == IR::Type::F32) {
|
|
if (value == "nan") {
|
|
return "utof(0x7fc00000)";
|
|
}
|
|
if (value == "inf") {
|
|
return "utof(0x7f800000)";
|
|
}
|
|
if (value == "-inf") {
|
|
return "utof(0xff800000)";
|
|
}
|
|
}
|
|
if (value.find_first_of('e') != std::string_view::npos) {
|
|
// scientific notation
|
|
const auto cast{type == IR::Type::F32 ? "float" : "double"};
|
|
return fmt::format("{}({})", cast, value);
|
|
}
|
|
const bool needs_dot{value.find_first_of('.') == std::string_view::npos};
|
|
const bool needs_suffix{!value.ends_with('f')};
|
|
const auto suffix{type == IR::Type::F32 ? "f" : "lf"};
|
|
return fmt::format("{}{}{}", value, needs_dot ? "." : "", needs_suffix ? suffix : "");
|
|
}
|
|
|
|
std::string MakeImm(const IR::Value& value) {
|
|
switch (value.Type()) {
|
|
case IR::Type::U1:
|
|
return fmt::format("{}", value.U1() ? "true" : "false");
|
|
case IR::Type::U32:
|
|
return fmt::format("{}u", value.U32());
|
|
case IR::Type::F32:
|
|
return FormatFloat(fmt::format("{}", value.F32()), IR::Type::F32);
|
|
case IR::Type::U64:
|
|
return fmt::format("{}ul", value.U64());
|
|
case IR::Type::F64:
|
|
return FormatFloat(fmt::format("{}", value.F64()), IR::Type::F64);
|
|
case IR::Type::Void:
|
|
return "";
|
|
default:
|
|
throw NotImplementedException("Immediate type {}", value.Type());
|
|
}
|
|
}
|
|
} // Anonymous namespace
|
|
|
|
std::string VarAlloc::Representation(u32 index, GlslVarType type) const {
|
|
const auto prefix{TypePrefix(type)};
|
|
return fmt::format("{}{}", prefix, index);
|
|
}
|
|
|
|
std::string VarAlloc::Representation(Id id) const {
|
|
return Representation(id.index, id.type);
|
|
}
|
|
|
|
std::string VarAlloc::Define(IR::Inst& inst, GlslVarType type) {
|
|
if (inst.HasUses()) {
|
|
inst.SetDefinition<Id>(Alloc(type));
|
|
return Representation(inst.Definition<Id>());
|
|
} else {
|
|
Id id{};
|
|
id.type.Assign(type);
|
|
GetUseTracker(type).uses_temp = true;
|
|
inst.SetDefinition<Id>(id);
|
|
}
|
|
return Representation(inst.Definition<Id>());
|
|
}
|
|
|
|
std::string VarAlloc::Define(IR::Inst& inst, IR::Type type) {
|
|
return Define(inst, RegType(type));
|
|
}
|
|
|
|
std::string VarAlloc::PhiDefine(IR::Inst& inst, IR::Type type) {
|
|
return AddDefine(inst, RegType(type));
|
|
}
|
|
|
|
std::string VarAlloc::AddDefine(IR::Inst& inst, GlslVarType type) {
|
|
if (inst.HasUses()) {
|
|
inst.SetDefinition<Id>(Alloc(type));
|
|
return Representation(inst.Definition<Id>());
|
|
} else {
|
|
return "";
|
|
}
|
|
return Representation(inst.Definition<Id>());
|
|
}
|
|
|
|
std::string VarAlloc::Consume(const IR::Value& value) {
|
|
return value.IsImmediate() ? MakeImm(value) : ConsumeInst(*value.InstRecursive());
|
|
}
|
|
|
|
std::string VarAlloc::ConsumeInst(IR::Inst& inst) {
|
|
inst.DestructiveRemoveUsage();
|
|
if (!inst.HasUses()) {
|
|
Free(inst.Definition<Id>());
|
|
}
|
|
return Representation(inst.Definition<Id>());
|
|
}
|
|
|
|
std::string VarAlloc::GetGlslType(IR::Type type) const {
|
|
return GetGlslType(RegType(type));
|
|
}
|
|
|
|
Id VarAlloc::Alloc(GlslVarType type) {
|
|
auto& use_tracker{GetUseTracker(type)};
|
|
if (use_tracker.num_used < NUM_VARS) {
|
|
for (size_t var = 1; var < NUM_VARS; ++var) {
|
|
if (use_tracker.var_use[var]) {
|
|
continue;
|
|
}
|
|
use_tracker.num_used = std::max(use_tracker.num_used, var + 1);
|
|
use_tracker.var_use[var] = true;
|
|
Id ret{};
|
|
ret.is_valid.Assign(1);
|
|
ret.type.Assign(type);
|
|
ret.index.Assign(static_cast<u32>(var));
|
|
return ret;
|
|
}
|
|
}
|
|
throw NotImplementedException("Variable spilling");
|
|
}
|
|
|
|
void VarAlloc::Free(Id id) {
|
|
if (id.is_valid == 0) {
|
|
// throw LogicError("Freeing invalid variable");
|
|
return;
|
|
}
|
|
auto& use_tracker{GetUseTracker(id.type)};
|
|
use_tracker.var_use[id.index] = false;
|
|
}
|
|
|
|
GlslVarType VarAlloc::RegType(IR::Type type) const {
|
|
switch (type) {
|
|
case IR::Type::U1:
|
|
return GlslVarType::U1;
|
|
case IR::Type::U32:
|
|
return GlslVarType::U32;
|
|
case IR::Type::F32:
|
|
return GlslVarType::F32;
|
|
case IR::Type::U64:
|
|
return GlslVarType::U64;
|
|
case IR::Type::F64:
|
|
return GlslVarType::F64;
|
|
default:
|
|
throw NotImplementedException("IR type {}", type);
|
|
}
|
|
}
|
|
|
|
std::string VarAlloc::GetGlslType(GlslVarType type) const {
|
|
switch (type) {
|
|
case GlslVarType::U1:
|
|
return "bool";
|
|
case GlslVarType::F16x2:
|
|
return "f16vec2";
|
|
case GlslVarType::U32:
|
|
return "uint";
|
|
case GlslVarType::S32:
|
|
return "int";
|
|
case GlslVarType::F32:
|
|
case GlslVarType::PrecF32:
|
|
return "float";
|
|
case GlslVarType::S64:
|
|
return "int64_t";
|
|
case GlslVarType::U64:
|
|
return "uint64_t";
|
|
case GlslVarType::F64:
|
|
case GlslVarType::PrecF64:
|
|
return "double";
|
|
case GlslVarType::U32x2:
|
|
return "uvec2";
|
|
case GlslVarType::F32x2:
|
|
return "vec2";
|
|
case GlslVarType::U32x3:
|
|
return "uvec3";
|
|
case GlslVarType::F32x3:
|
|
return "vec3";
|
|
case GlslVarType::U32x4:
|
|
return "uvec4";
|
|
case GlslVarType::F32x4:
|
|
return "vec4";
|
|
case GlslVarType::Void:
|
|
return "";
|
|
default:
|
|
throw NotImplementedException("Type {}", type);
|
|
}
|
|
}
|
|
|
|
VarAlloc::UseTracker& VarAlloc::GetUseTracker(GlslVarType type) {
|
|
switch (type) {
|
|
case GlslVarType::U1:
|
|
return var_bool;
|
|
case GlslVarType::F16x2:
|
|
return var_f16x2;
|
|
case GlslVarType::U32:
|
|
return var_u32;
|
|
case GlslVarType::S32:
|
|
return var_s32;
|
|
case GlslVarType::F32:
|
|
return var_f32;
|
|
case GlslVarType::S64:
|
|
return var_s64;
|
|
case GlslVarType::U64:
|
|
return var_u64;
|
|
case GlslVarType::F64:
|
|
return var_f64;
|
|
case GlslVarType::U32x2:
|
|
return var_u32x2;
|
|
case GlslVarType::F32x2:
|
|
return var_f32x2;
|
|
case GlslVarType::U32x3:
|
|
return var_u32x3;
|
|
case GlslVarType::F32x3:
|
|
return var_f32x3;
|
|
case GlslVarType::U32x4:
|
|
return var_u32x4;
|
|
case GlslVarType::F32x4:
|
|
return var_f32x4;
|
|
case GlslVarType::PrecF32:
|
|
return var_precf32;
|
|
case GlslVarType::PrecF64:
|
|
return var_precf64;
|
|
default:
|
|
throw NotImplementedException("Type {}", type);
|
|
}
|
|
}
|
|
|
|
const VarAlloc::UseTracker& VarAlloc::GetUseTracker(GlslVarType type) const {
|
|
switch (type) {
|
|
case GlslVarType::U1:
|
|
return var_bool;
|
|
case GlslVarType::F16x2:
|
|
return var_f16x2;
|
|
case GlslVarType::U32:
|
|
return var_u32;
|
|
case GlslVarType::S32:
|
|
return var_s32;
|
|
case GlslVarType::F32:
|
|
return var_f32;
|
|
case GlslVarType::S64:
|
|
return var_s64;
|
|
case GlslVarType::U64:
|
|
return var_u64;
|
|
case GlslVarType::F64:
|
|
return var_f64;
|
|
case GlslVarType::U32x2:
|
|
return var_u32x2;
|
|
case GlslVarType::F32x2:
|
|
return var_f32x2;
|
|
case GlslVarType::U32x3:
|
|
return var_u32x3;
|
|
case GlslVarType::F32x3:
|
|
return var_f32x3;
|
|
case GlslVarType::U32x4:
|
|
return var_u32x4;
|
|
case GlslVarType::F32x4:
|
|
return var_f32x4;
|
|
case GlslVarType::PrecF32:
|
|
return var_precf32;
|
|
case GlslVarType::PrecF64:
|
|
return var_precf64;
|
|
default:
|
|
throw NotImplementedException("Type {}", type);
|
|
}
|
|
}
|
|
|
|
} // namespace Shader::Backend::GLSL
|