1/* Copyright (c) 2013-2015 Jeffrey Pfau
  2 *
  3 * This Source Code Form is subject to the terms of the Mozilla Public
  4 * License, v. 2.0. If a copy of the MPL was not distributed with this
  5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
  6#ifndef GBA_THREAD_H
  7#define GBA_THREAD_H
  8
  9#include "util/common.h"
 10
 11#include "gba/gba.h"
 12#include "gba/input.h"
 13#include "gba/supervisor/overrides.h"
 14#include "gba/supervisor/sync.h"
 15
 16#include "util/threading.h"
 17
 18struct GBAThread;
 19struct GBAArguments;
 20struct GBACheatSet;
 21struct GBAOptions;
 22
 23typedef void (*ThreadCallback)(struct GBAThread* threadContext);
 24
 25enum ThreadState {
 26	THREAD_INITIALIZED = -1,
 27	THREAD_RUNNING = 0,
 28	THREAD_INTERRUPTED,
 29	THREAD_INTERRUPTING,
 30	THREAD_PAUSED,
 31	THREAD_PAUSING,
 32	THREAD_RUN_ON,
 33	THREAD_RESETING,
 34	THREAD_EXITING,
 35	THREAD_SHUTDOWN,
 36	THREAD_CRASHED
 37};
 38
 39struct GBAThread {
 40	// Output
 41	enum ThreadState state;
 42	struct GBA* gba;
 43	struct ARMCore* cpu;
 44
 45	// Input
 46	struct GBAVideoRenderer* renderer;
 47	struct GBASIODriverSet sioDrivers;
 48	struct ARMDebugger* debugger;
 49	struct VDir* gameDir;
 50	struct VDir* stateDir;
 51	struct VFile* rom;
 52	struct VFile* save;
 53	struct VFile* bios;
 54	struct VFile* patch;
 55	struct VFile* cheatsFile;
 56	const char* fname;
 57	const char* movie;
 58	int activeKeys;
 59	struct GBAAVStream* stream;
 60	struct Configuration* overrides;
 61	enum GBAIdleLoopOptimization idleOptimization;
 62	bool bootBios;
 63
 64	bool hasOverride;
 65	struct GBACartridgeOverride override;
 66
 67	// Run-time options
 68	int frameskip;
 69	float fpsTarget;
 70	size_t audioBuffers;
 71	bool skipBios;
 72	int volume;
 73	bool mute;
 74
 75	// Threading state
 76	Thread thread;
 77
 78	Mutex stateMutex;
 79	Condition stateCond;
 80	enum ThreadState savedState;
 81	int interruptDepth;
 82	bool frameWasOn;
 83
 84	GBALogHandler logHandler;
 85	int logLevel;
 86	ThreadCallback startCallback;
 87	ThreadCallback cleanCallback;
 88	ThreadCallback frameCallback;
 89	void* userData;
 90	void (*run)(struct GBAThread*);
 91
 92	struct GBASync sync;
 93
 94	int rewindBufferSize;
 95	int rewindBufferCapacity;
 96	int rewindBufferInterval;
 97	int rewindBufferNext;
 98	struct GBASerializedState** rewindBuffer;
 99	int rewindBufferWriteOffset;
100	uint8_t* rewindScreenBuffer;
101
102	struct GBACheatDevice* cheats;
103};
104
105void GBAMapOptionsToContext(const struct GBAOptions*, struct GBAThread*);
106void GBAMapArgumentsToContext(const struct GBAArguments*, struct GBAThread*);
107
108bool GBAThreadStart(struct GBAThread* threadContext);
109bool GBAThreadHasStarted(struct GBAThread* threadContext);
110bool GBAThreadHasExited(struct GBAThread* threadContext);
111bool GBAThreadHasCrashed(struct GBAThread* threadContext);
112void GBAThreadEnd(struct GBAThread* threadContext);
113void GBAThreadReset(struct GBAThread* threadContext);
114void GBAThreadJoin(struct GBAThread* threadContext);
115
116bool GBAThreadIsActive(struct GBAThread* threadContext);
117void GBAThreadInterrupt(struct GBAThread* threadContext);
118void GBAThreadContinue(struct GBAThread* threadContext);
119
120void GBARunOnThread(struct GBAThread* threadContext, void (*run)(struct GBAThread*));
121
122void GBAThreadPause(struct GBAThread* threadContext);
123void GBAThreadUnpause(struct GBAThread* threadContext);
124bool GBAThreadIsPaused(struct GBAThread* threadContext);
125void GBAThreadTogglePause(struct GBAThread* threadContext);
126void GBAThreadPauseFromThread(struct GBAThread* threadContext);
127struct GBAThread* GBAThreadGetContext(void);
128
129void GBAThreadLoadROM(struct GBAThread* threadContext, const char* fname);
130void GBAThreadReplaceROM(struct GBAThread* threadContext, const char* fname);
131
132#ifdef USE_PNG
133void GBAThreadTakeScreenshot(struct GBAThread* threadContext);
134#endif
135
136#endif