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System: Rewrite save state I/O

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No more ByteStream or virtual calls for every piece of data.
This commit is contained in:
Stenzek
2024-07-29 16:23:39 +10:00
parent dd8bf2c9d9
commit a6518ff9dc
14 changed files with 724 additions and 515 deletions
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24
src/core/system.h
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@ -7,6 +7,8 @@
#include "timing_event.h"
#include "types.h"
#include "util/image.h"
#include "common/timer.h"
#include <memory>
@ -76,9 +78,7 @@ struct ExtendedSaveStateInfo
std::string media_path;
std::time_t timestamp;
u32 screenshot_width;
u32 screenshot_height;
std::vector<u32> screenshot_data;
RGBA8Image screenshot;
};
namespace System {
@ -263,23 +263,11 @@ bool BootSystem(SystemBootParameters parameters, Error* error);
void PauseSystem(bool paused);
void ResetSystem();
/// Loads state from the specified filename.
bool LoadState(const char* filename, Error* error);
bool SaveState(const char* filename, Error* error, bool backup_existing_save);
/// Loads state from the specified path.
bool LoadState(const char* path, Error* error, bool save_undo_state);
bool SaveState(const char* path, Error* error, bool backup_existing_save);
bool SaveResumeState(Error* error);
/// Memory save states - only for internal use.
struct MemorySaveState
{
std::unique_ptr<GPUTexture> vram_texture;
std::unique_ptr<GrowableMemoryByteStream> state_stream;
};
bool SaveMemoryState(MemorySaveState* mss);
bool LoadMemoryState(const MemorySaveState& mss);
bool LoadStateFromStream(ByteStream* stream, Error* error, bool update_display, bool ignore_media = false);
bool SaveStateToStream(ByteStream* state, Error* error, u32 screenshot_size = 256, u32 compression_method = 0,
bool ignore_media = false);
/// Runs the VM until the CPU execution is canceled.
void Execute();