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 VFile* rom;
 52	struct VFile* save;
 53	struct VFile* bios;
 54	struct VFile* patch;
 55	const char* fname;
 56	int activeKeys;
 57	int frameskip;
 58
 59	// Threading state
 60	Thread thread;
 61
 62	Mutex stateMutex;
 63	Condition stateCond;
 64	enum ThreadState savedState;
 65
 66	GBALogHandler logHandler;
 67	int logLevel;
 68	ThreadCallback startCallback;
 69	ThreadCallback cleanCallback;
 70	ThreadCallback frameCallback;
 71	void* userData;
 72
 73	struct GBASync sync;
 74
 75	int rewindBufferSize;
 76	int rewindBufferCapacity;
 77	int rewindBufferInterval;
 78	int rewindBufferNext;
 79	struct GBASerializedState** rewindBuffer;
 80	int rewindBufferWriteOffset;
 81};
 82
 83void GBAMapOptionsToContext(struct StartupOptions*, struct GBAThread*);
 84
 85bool GBAThreadStart(struct GBAThread* threadContext);
 86bool GBAThreadHasStarted(struct GBAThread* threadContext);
 87void GBAThreadEnd(struct GBAThread* threadContext);
 88void GBAThreadReset(struct GBAThread* threadContext);
 89void GBAThreadJoin(struct GBAThread* threadContext);
 90
 91void GBAThreadInterrupt(struct GBAThread* threadContext);
 92void GBAThreadContinue(struct GBAThread* threadContext);
 93
 94void GBAThreadPause(struct GBAThread* threadContext);
 95void GBAThreadUnpause(struct GBAThread* threadContext);
 96bool GBAThreadIsPaused(struct GBAThread* threadContext);
 97void GBAThreadTogglePause(struct GBAThread* threadContext);
 98struct GBAThread* GBAThreadGetContext(void);
 99
100void GBASyncPostFrame(struct GBASync* sync);
101bool GBASyncWaitFrameStart(struct GBASync* sync, int frameskip);
102void GBASyncWaitFrameEnd(struct GBASync* sync);
103bool GBASyncDrawingFrame(struct GBASync* sync);
104
105void GBASyncProduceAudio(struct GBASync* sync, int wait);
106void GBASyncLockAudio(struct GBASync* sync);
107void GBASyncConsumeAudio(struct GBASync* sync);
108
109#endif