diff options
author | Zach Hilman <zachhilman@gmail.com> | 2019-06-07 17:11:11 +0200 |
---|---|---|
committer | Zach Hilman <zachhilman@gmail.com> | 2019-06-21 01:22:53 +0200 |
commit | ed82fa3a91fc84f7f906b898d8f71e15fb42c16e (patch) | |
tree | 4cacf3974405b80f64b5108481ea198fd08f4aee /src/core/tools/freezer.h | |
parent | freezer: Add documentation for methods (diff) | |
download | yuzu-ed82fa3a91fc84f7f906b898d8f71e15fb42c16e.tar yuzu-ed82fa3a91fc84f7f906b898d8f71e15fb42c16e.tar.gz yuzu-ed82fa3a91fc84f7f906b898d8f71e15fb42c16e.tar.bz2 yuzu-ed82fa3a91fc84f7f906b898d8f71e15fb42c16e.tar.lz yuzu-ed82fa3a91fc84f7f906b898d8f71e15fb42c16e.tar.xz yuzu-ed82fa3a91fc84f7f906b898d8f71e15fb42c16e.tar.zst yuzu-ed82fa3a91fc84f7f906b898d8f71e15fb42c16e.zip |
Diffstat (limited to 'src/core/tools/freezer.h')
-rw-r--r-- | src/core/tools/freezer.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/src/core/tools/freezer.h b/src/core/tools/freezer.h new file mode 100644 index 000000000..5edd049c1 --- /dev/null +++ b/src/core/tools/freezer.h @@ -0,0 +1,75 @@ +// Copyright 2019 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include <atomic> +#include <mutex> +#include <optional> +#include <vector> +#include "common/common_types.h" + +namespace Core::Timing { +class CoreTiming; +struct EventType; +} // namespace Core::Timing + +namespace Tools { + +// A class that will effectively freeze memory values. +class Freezer { +public: + struct Entry { + VAddr address; + u32 width; + u64 value; + }; + + explicit Freezer(Core::Timing::CoreTiming& core_timing); + ~Freezer(); + + // Enables or disables the entire memory freezer. + void SetActive(bool active); + + // Returns whether or not the freezer is active. + bool IsActive() const; + + // Removes all entries from the freezer. + void Clear(); + + // Freezes a value to its current memory address. The value the memory is kept at will be the + // value that is read during this function. Width can be 1, 2, 4, or 8 (in bytes). + u64 Freeze(VAddr address, u32 width); + + // Unfreezes the memory value at address. If the address isn't frozen, this is a no-op. + void Unfreeze(VAddr address); + + // Returns whether or not the address is frozen. + bool IsFrozen(VAddr address) const; + + // Sets the value that address should be frozen to. This doesn't change the width set by using + // Freeze(). If the value isn't frozen, this will not freeze it and is thus a no-op. + void SetFrozenValue(VAddr address, u64 value); + + // Returns the entry corresponding to the address if the address is frozen, otherwise + // std::nullopt. + std::optional<Entry> GetEntry(VAddr address) const; + + // Returns all the entries in the freezer, an empty vector means nothing is frozen. + std::vector<Entry> GetEntries() const; + +private: + void FrameCallback(u64 userdata, s64 cycles_late); + void FillEntryReads(); + + std::atomic_bool active{false}; + + mutable std::mutex entries_mutex; + std::vector<Entry> entries; + + Core::Timing::EventType* event; + Core::Timing::CoreTiming& core_timing; +}; + +} // namespace Tools |