121 lines
2.3 KiB
C++
121 lines
2.3 KiB
C++
// Copyright 2019 yuzu Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include <memory>
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#include <variant>
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#include "video_core/engines/shader_bytecode.h"
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namespace VideoCommon::Shader {
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using Tegra::Shader::ConditionCode;
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using Tegra::Shader::Pred;
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class ExprAnd;
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class ExprOr;
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class ExprNot;
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class ExprPredicate;
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class ExprCondCode;
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class ExprVar;
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class ExprBoolean;
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using ExprData =
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std::variant<ExprVar, ExprCondCode, ExprPredicate, ExprNot, ExprOr, ExprAnd, ExprBoolean>;
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using Expr = std::shared_ptr<ExprData>;
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class ExprAnd final {
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public:
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ExprAnd(Expr a, Expr b) : operand1{a}, operand2{b} {}
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bool operator==(const ExprAnd& b) const;
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Expr operand1;
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Expr operand2;
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};
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class ExprOr final {
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public:
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ExprOr(Expr a, Expr b) : operand1{a}, operand2{b} {}
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bool operator==(const ExprOr& b) const;
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Expr operand1;
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Expr operand2;
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};
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class ExprNot final {
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public:
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ExprNot(Expr a) : operand1{a} {}
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bool operator==(const ExprNot& b) const;
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Expr operand1;
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};
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class ExprVar final {
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public:
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ExprVar(u32 index) : var_index{index} {}
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bool operator==(const ExprVar& b) const {
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return var_index == b.var_index;
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}
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u32 var_index;
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};
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class ExprPredicate final {
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public:
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ExprPredicate(u32 predicate) : predicate{predicate} {}
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bool operator==(const ExprPredicate& b) const {
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return predicate == b.predicate;
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}
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u32 predicate;
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};
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class ExprCondCode final {
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public:
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ExprCondCode(ConditionCode cc) : cc{cc} {}
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bool operator==(const ExprCondCode& b) const {
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return cc == b.cc;
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}
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ConditionCode cc;
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};
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class ExprBoolean final {
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public:
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ExprBoolean(bool val) : value{val} {}
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bool operator==(const ExprBoolean& b) const {
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return value == b.value;
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}
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bool value;
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};
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template <typename T, typename... Args>
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Expr MakeExpr(Args&&... args) {
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static_assert(std::is_convertible_v<T, ExprData>);
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return std::make_shared<ExprData>(T(std::forward<Args>(args)...));
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}
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bool ExprAreEqual(Expr first, Expr second);
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bool ExprAreOpposite(Expr first, Expr second);
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Expr MakeExprNot(Expr first);
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Expr MakeExprAnd(Expr first, Expr second);
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Expr MakeExprOr(Expr first, Expr second);
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bool ExprIsTrue(Expr first);
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} // namespace VideoCommon::Shader
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