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engines/tinsel/bmv.h

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Plays films within a scene, takes into account the actor in each 'column'.
+ */
+
+#ifndef TINSEL_BMV_H
+#define TINSEL_BMV_H
+
+#include "common/coroutines.h"
+#include "common/file.h"
+
+#include "audio/mixer.h"
+
+#include "tinsel/object.h"
+#include "tinsel/palette.h"
+
+namespace Audio {
+class QueuingAudioStream;
+}
+
+namespace Tinsel {
+
+typedef enum
+{
+	BMV_OP_DELTA = 0,
+	BMV_OP_RAW   = 1,
+	BMV_OP_RUN   = 2,
+	BMV_OP_COUNT
+} BMV_OP;
+
+class BMVPlayer {
+
+	bool bOldAudio;
+
+	/// Set when a movie is on
+	bool bMovieOn;
+
+	/// Set to kill one off
+	bool bAbort;
+
+	/// For escaping out of movies
+	int bmvEscape;
+
+	/// Movie file pointer
+	Common::File stream;
+
+	/// Movie file name
+	char szMovieFile[14];
+
+	/// Pointers to buffers
+	byte *bigBuffer;
+
+	/// Next data to use to extract a frame
+	int nextUseOffset;
+
+	/// Next data to use to extract sound data
+	int nextSoundOffset;
+
+	/// When above offset gets to what this is set at, rewind
+	int wrapUseOffset;
+
+	/// The offset of the most future packet
+	int mostFutureOffset;
+
+	/// The current frame
+	int currentFrame;
+	int currentSoundFrame;
+
+	/// Number of packets currently in RAM
+	int numAdvancePackets;
+
+	/// Next slot that will be read from disc
+	int nextReadSlot;
+
+	/// Set when the whole file has been read
+	bool bFileEnd;
+
+	/// Palette
+	COLORREF moviePal[256 * 8]; // TinselV1 & V2 need 256, TinselVersion == 3 needs 2048
+
+	int blobsInBuffer;
+
+	struct {
+		OBJECT *pText;
+		int	dieFrame;
+	} texts[2];
+
+	COLORREF talkColor;
+
+	/// TinselV3 header fields
+	int slotSize;
+	int frames;
+	int prefetchSlots;
+	int numSlots;
+	int frameRate;
+	int audioMaxSize;
+	int audioBlobSize;
+	int width;
+	int height;
+
+	/// TinselV3
+	int frameTime;
+	int bpp;
+
+	int bigProblemCount;
+
+	bool bIsText;
+
+	int movieTick;
+	int startTick;
+	uint32 nextMovieTime;
+
+	uint16 Au_Prev1;
+	uint16 Au_Prev2;
+	byte *ScreenBeg;
+	byte *screenBuffer;
+
+	bool audioStarted;
+
+	Audio::QueuingAudioStream *_audioStream;
+	Audio::SoundHandle _audioHandle;
+
+	int nextMaintain;
+public:
+	BMVPlayer();
+
+	void PlayBMV(CORO_PARAM, SCNHANDLE hFileStem, int myEscape);
+	void FinishBMV();
+	void CopyMovieToScreen();
+	void FettleBMV();
+
+	bool MoviePlaying();
+
+	int32 MovieAudioLag();
+
+	uint32 NextMovieTime();
+
+	void AbortMovie();
+
+private:
+	void ReadHeader();
+
+	void InitBMV(byte *memoryBuffer);
+	void PrepAudio(const byte *sourceData, int blobCount, byte *destPtr);
+	void PrepBMV(const byte *sourceData, int length, short deltaFetchDisp);
+	void t3DoOperation(BMV_OP op, uint32 len, const byte **src, byte **dst, int32 deltaOffset);
+	void t3PrepBMV(const byte *src, uint32 len, int32 deltaOffset);
+	void MoviePalette(int paletteOffset);
+	void InitializeMovieSound();
+	void StartMovieSound();
+	void FinishMovieSound();
+	void MovieAudio(int audioOffset, int blobs);
+	void FettleMovieText();
+	void BmvDrawText(bool bDraw);
+	void MovieText(CORO_PARAM, int stringId, int x, int y, int fontId, COLORREF *pTalkColor, int duration);
+	int MovieCommand(char cmd, int commandOffset);
+	int FollowingPacket(int thisPacket, bool bReallyImportant);
+	void LoadSlots(int number);
+	void InitializeBMV();
+	bool MaintainBuffer();
+	bool DoBMVFrame();
+	bool DoSoundFrame();
+};
+
+
+} // End of namespace Tinsel
+
+#endif