diff options
author | bunnei <bunneidev@gmail.com> | 2021-07-25 20:39:04 +0200 |
---|---|---|
committer | GitHub <noreply@github.com> | 2021-07-25 20:39:04 +0200 |
commit | 98b26b6e126d4775fdf3f773fe8a8ac808a8ff8f (patch) | |
tree | 816faa96c2c4d291825063433331a8ea4b3d08f1 /src/video_core/shader/ast.h | |
parent | Merge pull request #6699 from lat9nq/common-threads (diff) | |
parent | shader: Support out of bound local memory reads and immediate writes (diff) | |
download | yuzu-98b26b6e126d4775fdf3f773fe8a8ac808a8ff8f.tar yuzu-98b26b6e126d4775fdf3f773fe8a8ac808a8ff8f.tar.gz yuzu-98b26b6e126d4775fdf3f773fe8a8ac808a8ff8f.tar.bz2 yuzu-98b26b6e126d4775fdf3f773fe8a8ac808a8ff8f.tar.lz yuzu-98b26b6e126d4775fdf3f773fe8a8ac808a8ff8f.tar.xz yuzu-98b26b6e126d4775fdf3f773fe8a8ac808a8ff8f.tar.zst yuzu-98b26b6e126d4775fdf3f773fe8a8ac808a8ff8f.zip |
Diffstat (limited to 'src/video_core/shader/ast.h')
-rw-r--r-- | src/video_core/shader/ast.h | 398 |
1 files changed, 0 insertions, 398 deletions
diff --git a/src/video_core/shader/ast.h b/src/video_core/shader/ast.h deleted file mode 100644 index dc49b369e..000000000 --- a/src/video_core/shader/ast.h +++ /dev/null @@ -1,398 +0,0 @@ -// Copyright 2019 yuzu Emulator Project -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#pragma once - -#include <functional> -#include <list> -#include <memory> -#include <optional> -#include <string> -#include <unordered_map> -#include <vector> - -#include "video_core/shader/expr.h" -#include "video_core/shader/node.h" - -namespace VideoCommon::Shader { - -class ASTBase; -class ASTBlockDecoded; -class ASTBlockEncoded; -class ASTBreak; -class ASTDoWhile; -class ASTGoto; -class ASTIfElse; -class ASTIfThen; -class ASTLabel; -class ASTProgram; -class ASTReturn; -class ASTVarSet; - -using ASTData = std::variant<ASTProgram, ASTIfThen, ASTIfElse, ASTBlockEncoded, ASTBlockDecoded, - ASTVarSet, ASTGoto, ASTLabel, ASTDoWhile, ASTReturn, ASTBreak>; - -using ASTNode = std::shared_ptr<ASTBase>; - -enum class ASTZipperType : u32 { - Program, - IfThen, - IfElse, - Loop, -}; - -class ASTZipper final { -public: - explicit ASTZipper(); - - void Init(ASTNode first, ASTNode parent); - - ASTNode GetFirst() const { - return first; - } - - ASTNode GetLast() const { - return last; - } - - void PushBack(ASTNode new_node); - void PushFront(ASTNode new_node); - void InsertAfter(ASTNode new_node, ASTNode at_node); - void InsertBefore(ASTNode new_node, ASTNode at_node); - void DetachTail(ASTNode node); - void DetachSingle(ASTNode node); - void DetachSegment(ASTNode start, ASTNode end); - void Remove(ASTNode node); - - ASTNode first; - ASTNode last; -}; - -class ASTProgram { -public: - ASTZipper nodes{}; -}; - -class ASTIfThen { -public: - explicit ASTIfThen(Expr condition_) : condition{std::move(condition_)} {} - Expr condition; - ASTZipper nodes{}; -}; - -class ASTIfElse { -public: - ASTZipper nodes{}; -}; - -class ASTBlockEncoded { -public: - explicit ASTBlockEncoded(u32 start_, u32 _) : start{start_}, end{_} {} - u32 start; - u32 end; -}; - -class ASTBlockDecoded { -public: - explicit ASTBlockDecoded(NodeBlock&& new_nodes_) : nodes(std::move(new_nodes_)) {} - NodeBlock nodes; -}; - -class ASTVarSet { -public: - explicit ASTVarSet(u32 index_, Expr condition_) - : index{index_}, condition{std::move(condition_)} {} - - u32 index; - Expr condition; -}; - -class ASTLabel { -public: - explicit ASTLabel(u32 index_) : index{index_} {} - u32 index; - bool unused{}; -}; - -class ASTGoto { -public: - explicit ASTGoto(Expr condition_, u32 label_) - : condition{std::move(condition_)}, label{label_} {} - - Expr condition; - u32 label; -}; - -class ASTDoWhile { -public: - explicit ASTDoWhile(Expr condition_) : condition{std::move(condition_)} {} - Expr condition; - ASTZipper nodes{}; -}; - -class ASTReturn { -public: - explicit ASTReturn(Expr condition_, bool kills_) - : condition{std::move(condition_)}, kills{kills_} {} - - Expr condition; - bool kills; -}; - -class ASTBreak { -public: - explicit ASTBreak(Expr condition_) : condition{std::move(condition_)} {} - Expr condition; -}; - -class ASTBase { -public: - explicit ASTBase(ASTNode parent_, ASTData data_) - : data{std::move(data_)}, parent{std::move(parent_)} {} - - template <class U, class... Args> - static ASTNode Make(ASTNode parent, Args&&... args) { - return std::make_shared<ASTBase>(std::move(parent), - ASTData(U(std::forward<Args>(args)...))); - } - - void SetParent(ASTNode new_parent) { - parent = std::move(new_parent); - } - - ASTNode& GetParent() { - return parent; - } - - const ASTNode& GetParent() const { - return parent; - } - - u32 GetLevel() const { - u32 level = 0; - auto next_parent = parent; - while (next_parent) { - next_parent = next_parent->GetParent(); - level++; - } - return level; - } - - ASTData* GetInnerData() { - return &data; - } - - const ASTData* GetInnerData() const { - return &data; - } - - ASTNode GetNext() const { - return next; - } - - ASTNode GetPrevious() const { - return previous; - } - - ASTZipper& GetManager() { - return *manager; - } - - const ASTZipper& GetManager() const { - return *manager; - } - - std::optional<u32> GetGotoLabel() const { - if (const auto* inner = std::get_if<ASTGoto>(&data)) { - return {inner->label}; - } - return std::nullopt; - } - - Expr GetGotoCondition() const { - if (const auto* inner = std::get_if<ASTGoto>(&data)) { - return inner->condition; - } - return nullptr; - } - - void MarkLabelUnused() { - if (auto* inner = std::get_if<ASTLabel>(&data)) { - inner->unused = true; - } - } - - bool IsLabelUnused() const { - if (const auto* inner = std::get_if<ASTLabel>(&data)) { - return inner->unused; - } - return true; - } - - std::optional<u32> GetLabelIndex() const { - if (const auto* inner = std::get_if<ASTLabel>(&data)) { - return {inner->index}; - } - return std::nullopt; - } - - Expr GetIfCondition() const { - if (const auto* inner = std::get_if<ASTIfThen>(&data)) { - return inner->condition; - } - return nullptr; - } - - void SetGotoCondition(Expr new_condition) { - if (auto* inner = std::get_if<ASTGoto>(&data)) { - inner->condition = std::move(new_condition); - } - } - - bool IsIfThen() const { - return std::holds_alternative<ASTIfThen>(data); - } - - bool IsIfElse() const { - return std::holds_alternative<ASTIfElse>(data); - } - - bool IsBlockEncoded() const { - return std::holds_alternative<ASTBlockEncoded>(data); - } - - void TransformBlockEncoded(NodeBlock&& nodes) { - data = ASTBlockDecoded(std::move(nodes)); - } - - bool IsLoop() const { - return std::holds_alternative<ASTDoWhile>(data); - } - - ASTZipper* GetSubNodes() { - if (std::holds_alternative<ASTProgram>(data)) { - return &std::get_if<ASTProgram>(&data)->nodes; - } - if (std::holds_alternative<ASTIfThen>(data)) { - return &std::get_if<ASTIfThen>(&data)->nodes; - } - if (std::holds_alternative<ASTIfElse>(data)) { - return &std::get_if<ASTIfElse>(&data)->nodes; - } - if (std::holds_alternative<ASTDoWhile>(data)) { - return &std::get_if<ASTDoWhile>(&data)->nodes; - } - return nullptr; - } - - void Clear() { - next.reset(); - previous.reset(); - parent.reset(); - manager = nullptr; - } - -private: - friend class ASTZipper; - - ASTData data; - ASTNode parent; - ASTNode next; - ASTNode previous; - ASTZipper* manager{}; -}; - -class ASTManager final { -public: - explicit ASTManager(bool do_full_decompile, bool disable_else_derivation_); - ~ASTManager(); - - ASTManager(const ASTManager& o) = delete; - ASTManager& operator=(const ASTManager& other) = delete; - - ASTManager(ASTManager&& other) noexcept = default; - ASTManager& operator=(ASTManager&& other) noexcept = default; - - void Init(); - - void DeclareLabel(u32 address); - - void InsertLabel(u32 address); - - void InsertGoto(Expr condition, u32 address); - - void InsertBlock(u32 start_address, u32 end_address); - - void InsertReturn(Expr condition, bool kills); - - std::string Print() const; - - void Decompile(); - - void ShowCurrentState(std::string_view state) const; - - void SanityCheck() const; - - void Clear(); - - bool IsFullyDecompiled() const { - if (full_decompile) { - return gotos.empty(); - } - - for (ASTNode goto_node : gotos) { - auto label_index = goto_node->GetGotoLabel(); - if (!label_index) { - return false; - } - ASTNode glabel = labels[*label_index]; - if (IsBackwardsJump(goto_node, glabel)) { - return false; - } - } - return true; - } - - ASTNode GetProgram() const { - return main_node; - } - - u32 GetVariables() const { - return variables; - } - - const std::vector<ASTNode>& GetLabels() const { - return labels; - } - -private: - bool IsBackwardsJump(ASTNode goto_node, ASTNode label_node) const; - - bool IndirectlyRelated(const ASTNode& first, const ASTNode& second) const; - - bool DirectlyRelated(const ASTNode& first, const ASTNode& second) const; - - void EncloseDoWhile(ASTNode goto_node, ASTNode label); - - void EncloseIfThen(ASTNode goto_node, ASTNode label); - - void MoveOutward(ASTNode goto_node); - - u32 NewVariable() { - return variables++; - } - - bool full_decompile{}; - bool disable_else_derivation{}; - std::unordered_map<u32, u32> labels_map{}; - u32 labels_count{}; - std::vector<ASTNode> labels{}; - std::list<ASTNode> gotos{}; - u32 variables{}; - ASTProgram* program{}; - ASTNode main_node{}; - Expr false_condition{}; -}; - -} // namespace VideoCommon::Shader |