1/* Copyright (c) 2013-2014 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_RR_H
  7#define GBA_RR_H
  8
  9#include "util/common.h"
 10
 11struct GBA;
 12struct VDir;
 13struct VFile;
 14
 15enum GBARRInitFrom {
 16	INIT_EX_NIHILO = 0,
 17	INIT_FROM_SAVEGAME = 1,
 18	INIT_FROM_SAVESTATE = 2,
 19	INIT_FROM_BOTH = 3,
 20};
 21
 22enum GBARRTag {
 23	// Playback tags
 24	TAG_INVALID = 0x00,
 25	TAG_INPUT = 0x01,
 26	TAG_FRAME = 0x02,
 27	TAG_LAG = 0x03,
 28
 29	// Stream chunking tags
 30	TAG_BEGIN = 0x10,
 31	TAG_END = 0x11,
 32	TAG_PREVIOUSLY = 0x12,
 33	TAG_NEXT_TIME = 0x13,
 34	TAG_MAX_STREAM = 0x14,
 35
 36	// Recording information tags
 37	TAG_FRAME_COUNT = 0x20,
 38	TAG_LAG_COUNT = 0x21,
 39	TAG_RR_COUNT = 0x22,
 40	TAG_INIT = 0x24,
 41	TAG_INIT_EX_NIHILO = 0x24 | INIT_EX_NIHILO,
 42	TAG_INIT_FROM_SAVEGAME = 0x24 | INIT_FROM_SAVEGAME,
 43	TAG_INIT_FROM_SAVESTATE = 0x24 | INIT_FROM_SAVESTATE,
 44	TAG_INIT_FROM_BOTH = 0x24 | INIT_FROM_BOTH,
 45
 46	// User metadata tags
 47	TAG_AUTHOR = 0x30,
 48	TAG_COMMENT = 0x31,
 49
 50	TAG_EOF = INT_MAX
 51};
 52
 53struct GBARRContext {
 54	// Playback state
 55	bool isPlaying;
 56	bool autorecord;
 57
 58	// Recording state
 59	bool isRecording;
 60	bool inputThisFrame;
 61
 62	// Metadata
 63	uint32_t frames;
 64	uint32_t lagFrames;
 65	uint32_t streamId;
 66
 67	uint32_t maxStreamId;
 68	off_t maxStreamIdOffset;
 69
 70	enum GBARRInitFrom initFrom;
 71	off_t initFromOffset;
 72
 73	uint32_t rrCount;
 74	off_t rrCountOffset;
 75
 76	struct VFile* savedata;
 77
 78	// Streaming state
 79	struct VDir* streamDir;
 80	struct VFile* metadataFile;
 81	struct VFile* movieStream;
 82	uint16_t currentInput;
 83	enum GBARRTag peekedTag;
 84	uint32_t nextTime;
 85	uint32_t previously;
 86};
 87
 88void GBARRContextCreate(struct GBA*);
 89void GBARRContextDestroy(struct GBA*);
 90void GBARRSaveState(struct GBA*);
 91void GBARRLoadState(struct GBA*);
 92
 93bool GBARRInitStream(struct GBARRContext*, struct VDir*);
 94bool GBARRReinitStream(struct GBARRContext*, enum GBARRInitFrom);
 95bool GBARRLoadStream(struct GBARRContext*, uint32_t streamId);
 96bool GBARRIncrementStream(struct GBARRContext*, bool recursive);
 97bool GBARRFinishSegment(struct GBARRContext*);
 98bool GBARRSkipSegment(struct GBARRContext*);
 99bool GBARRMarkRerecord(struct GBARRContext*);
100
101bool GBARRStartPlaying(struct GBARRContext*, bool autorecord);
102void GBARRStopPlaying(struct GBARRContext*);
103bool GBARRStartRecording(struct GBARRContext*);
104void GBARRStopRecording(struct GBARRContext*);
105
106bool GBARRIsPlaying(struct GBARRContext*);
107bool GBARRIsRecording(struct GBARRContext*);
108
109void GBARRNextFrame(struct GBARRContext*);
110void GBARRLogInput(struct GBARRContext*, uint16_t input);
111uint16_t GBARRQueryInput(struct GBARRContext*);
112
113#endif