1#ifndef GBA_THREAD_H
  2#define GBA_THREAD_H
  3
  4#include "common.h"
  5
  6#include "gba.h"
  7
  8#include "util/threading.h"
  9#include "platform/commandline.h"
 10
 11struct GBAThread;
 12typedef void (*ThreadCallback)(struct GBAThread* threadContext);
 13
 14enum ThreadState {
 15	THREAD_INITIALIZED = -1,
 16	THREAD_RUNNING = 0,
 17	THREAD_INTERRUPTED,
 18	THREAD_INTERRUPTING,
 19	THREAD_PAUSED,
 20	THREAD_PAUSING,
 21	THREAD_RESETING,
 22	THREAD_EXITING,
 23	THREAD_SHUTDOWN
 24};
 25
 26struct GBASync {
 27	int videoFramePending;
 28	int videoFrameWait;
 29	int videoFrameSkip;
 30	bool videoFrameOn;
 31	Mutex videoFrameMutex;
 32	Condition videoFrameAvailableCond;
 33	Condition videoFrameRequiredCond;
 34
 35	int audioWait;
 36	Condition audioRequiredCond;
 37	Mutex audioBufferMutex;
 38};
 39
 40struct GBAThread {
 41	// Output
 42	enum ThreadState state;
 43	struct GBA* gba;
 44	struct ARMCore* cpu;
 45
 46	// Input
 47	struct GBAVideoRenderer* renderer;
 48	struct GBASIODriverSet sioDrivers;
 49	struct ARMDebugger* debugger;
 50	struct VDir* gameDir;
 51	struct VDir* stateDir;
 52	struct VFile* rom;
 53	struct VFile* save;
 54	struct VFile* bios;
 55	struct VFile* patch;
 56	const char* fname;
 57	int activeKeys;
 58	int frameskip;
 59
 60	// Threading state
 61	Thread thread;
 62
 63	Mutex stateMutex;
 64	Condition stateCond;
 65	enum ThreadState savedState;
 66
 67	GBALogHandler logHandler;
 68	int logLevel;
 69	ThreadCallback startCallback;
 70	ThreadCallback cleanCallback;
 71	ThreadCallback frameCallback;
 72	void* userData;
 73
 74	struct GBASync sync;
 75
 76	int rewindBufferSize;
 77	int rewindBufferCapacity;
 78	int rewindBufferInterval;
 79	int rewindBufferNext;
 80	struct GBASerializedState** rewindBuffer;
 81	int rewindBufferWriteOffset;
 82};
 83
 84void GBAMapOptionsToContext(struct StartupOptions*, struct GBAThread*);
 85
 86bool GBAThreadStart(struct GBAThread* threadContext);
 87bool GBAThreadHasStarted(struct GBAThread* threadContext);
 88void GBAThreadEnd(struct GBAThread* threadContext);
 89void GBAThreadReset(struct GBAThread* threadContext);
 90void GBAThreadJoin(struct GBAThread* threadContext);
 91
 92void GBAThreadInterrupt(struct GBAThread* threadContext);
 93void GBAThreadContinue(struct GBAThread* threadContext);
 94
 95void GBAThreadPause(struct GBAThread* threadContext);
 96void GBAThreadUnpause(struct GBAThread* threadContext);
 97bool GBAThreadIsPaused(struct GBAThread* threadContext);
 98void GBAThreadTogglePause(struct GBAThread* threadContext);
 99struct GBAThread* GBAThreadGetContext(void);
100
101void GBASyncPostFrame(struct GBASync* sync);
102bool GBASyncWaitFrameStart(struct GBASync* sync, int frameskip);
103void GBASyncWaitFrameEnd(struct GBASync* sync);
104bool GBASyncDrawingFrame(struct GBASync* sync);
105
106void GBASyncProduceAudio(struct GBASync* sync, int wait);
107void GBASyncLockAudio(struct GBASync* sync);
108void GBASyncConsumeAudio(struct GBASync* sync);
109
110#endif