118 lines
3.2 KiB
C++
118 lines
3.2 KiB
C++
// Copyright 2019 yuzu Emulator Project
|
|
// Licensed under GPLv2 or any later version
|
|
// Refer to the license.txt file included.
|
|
|
|
#pragma once
|
|
|
|
#include <list>
|
|
#include <optional>
|
|
#include <set>
|
|
#include <variant>
|
|
|
|
#include "video_core/engines/shader_bytecode.h"
|
|
#include "video_core/shader/ast.h"
|
|
#include "video_core/shader/compiler_settings.h"
|
|
#include "video_core/shader/registry.h"
|
|
#include "video_core/shader/shader_ir.h"
|
|
|
|
namespace VideoCommon::Shader {
|
|
|
|
using Tegra::Shader::ConditionCode;
|
|
using Tegra::Shader::Pred;
|
|
|
|
constexpr s32 exit_branch = -1;
|
|
|
|
struct Condition {
|
|
Pred predicate{Pred::UnusedIndex};
|
|
ConditionCode cc{ConditionCode::T};
|
|
|
|
bool IsUnconditional() const {
|
|
return predicate == Pred::UnusedIndex && cc == ConditionCode::T;
|
|
}
|
|
|
|
bool operator==(const Condition& other) const {
|
|
return std::tie(predicate, cc) == std::tie(other.predicate, other.cc);
|
|
}
|
|
|
|
bool operator!=(const Condition& other) const {
|
|
return !operator==(other);
|
|
}
|
|
};
|
|
|
|
class SingleBranch {
|
|
public:
|
|
SingleBranch() = default;
|
|
SingleBranch(Condition condition, s32 address, bool kill, bool is_sync, bool is_brk,
|
|
bool ignore)
|
|
: condition{condition}, address{address}, kill{kill}, is_sync{is_sync}, is_brk{is_brk},
|
|
ignore{ignore} {}
|
|
|
|
bool operator==(const SingleBranch& b) const {
|
|
return std::tie(condition, address, kill, is_sync, is_brk, ignore) ==
|
|
std::tie(b.condition, b.address, b.kill, b.is_sync, b.is_brk, b.ignore);
|
|
}
|
|
|
|
bool operator!=(const SingleBranch& b) const {
|
|
return !operator==(b);
|
|
}
|
|
|
|
Condition condition{};
|
|
s32 address{exit_branch};
|
|
bool kill{};
|
|
bool is_sync{};
|
|
bool is_brk{};
|
|
bool ignore{};
|
|
};
|
|
|
|
struct CaseBranch {
|
|
CaseBranch(u32 cmp_value, u32 address) : cmp_value{cmp_value}, address{address} {}
|
|
u32 cmp_value;
|
|
u32 address;
|
|
};
|
|
|
|
class MultiBranch {
|
|
public:
|
|
MultiBranch(u32 gpr, std::vector<CaseBranch>&& branches)
|
|
: gpr{gpr}, branches{std::move(branches)} {}
|
|
|
|
u32 gpr{};
|
|
std::vector<CaseBranch> branches{};
|
|
};
|
|
|
|
using BranchData = std::variant<SingleBranch, MultiBranch>;
|
|
using BlockBranchInfo = std::shared_ptr<BranchData>;
|
|
|
|
bool BlockBranchInfoAreEqual(BlockBranchInfo first, BlockBranchInfo second);
|
|
|
|
struct ShaderBlock {
|
|
u32 start{};
|
|
u32 end{};
|
|
bool ignore_branch{};
|
|
BlockBranchInfo branch{};
|
|
|
|
bool operator==(const ShaderBlock& sb) const {
|
|
return std::tie(start, end, ignore_branch) ==
|
|
std::tie(sb.start, sb.end, sb.ignore_branch) &&
|
|
BlockBranchInfoAreEqual(branch, sb.branch);
|
|
}
|
|
|
|
bool operator!=(const ShaderBlock& sb) const {
|
|
return !operator==(sb);
|
|
}
|
|
};
|
|
|
|
struct ShaderCharacteristics {
|
|
std::list<ShaderBlock> blocks{};
|
|
std::set<u32> labels{};
|
|
u32 start{};
|
|
u32 end{};
|
|
ASTManager manager{true, true};
|
|
CompilerSettings settings{};
|
|
};
|
|
|
|
std::unique_ptr<ShaderCharacteristics> ScanFlow(const ProgramCode& program_code, u32 start_address,
|
|
const CompilerSettings& settings,
|
|
Registry& registry);
|
|
|
|
} // namespace VideoCommon::Shader
|