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engines/grim/imuse/imuse_sndmgr.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/>.
+ *
+ */
+
+#ifndef GRIM_IMUSE_SNDMGR_H
+#define GRIM_IMUSE_SNDMGR_H
+
+#include "audio/mixer.h"
+#include "audio/audiostream.h"
+
+namespace Grim {
+
+class McmpMgr;
+
+class ImuseSndMgr {
+public:
+
+// MAX_IMUSE_SOUNDS needs to be hardcoded, ask aquadran
+#define MAX_IMUSE_SOUNDS    16
+
+// The numbering below fixes talking to Domino in his office
+// and it also allows Manny to get the info for Mercedes
+// Colomar, without this the game hangs at these points!
+#define IMUSE_VOLGRP_BGND   0
+#define IMUSE_VOLGRP_SFX    1
+#define IMUSE_VOLGRP_VOICE  2
+#define IMUSE_VOLGRP_MUSIC  3
+#define IMUSE_VOLGRP_ACTION 4
+
+private:
+	struct Region {
+		int32 offset;       // offset of region
+		int32 length;       // length of region
+	};
+
+	struct Jump {
+		int32 offset;       // jump offset position
+		int32 dest;         // jump to dest position
+		byte hookId;        // id of hook
+		int16 fadeDelay;    // fade delay in ms
+	};
+
+public:
+
+	struct SoundDesc {
+		uint16 freq;        // frequency
+		byte channels;      // stereo or mono
+		byte bits;          // 8, 12, 16
+		int numJumps;       // number of Jumps
+		int numRegions;     // number of Regions
+		Region *region;
+		Jump *jump;
+		bool endFlag;
+		bool inUse;
+		char name[32];
+		McmpMgr *mcmpMgr;
+		int type;
+		int volGroupId;
+		bool mcmpData;
+		uint32 headerSize;
+		Common::SeekableReadStream *inStream;
+	};
+
+private:
+
+	SoundDesc _sounds[MAX_IMUSE_SOUNDS];
+	bool _demo;
+
+	bool checkForProperHandle(SoundDesc *soundDesc);
+	SoundDesc *allocSlot();
+	void parseSoundHeader(SoundDesc *sound, int &headerSize);
+	void countElements(SoundDesc *sound);
+
+public:
+
+	ImuseSndMgr(bool demo);
+	~ImuseSndMgr();
+
+	SoundDesc *openSound(const char *soundName, int volGroupId);
+	void closeSound(SoundDesc *sound);
+	SoundDesc *cloneSound(SoundDesc *sound);
+
+	int getFreq(SoundDesc *sound);
+	int getBits(SoundDesc *sound);
+	int getChannels(SoundDesc *sound);
+	bool isEndOfRegion(SoundDesc *sound, int region);
+	int getNumRegions(SoundDesc *sound);
+	int getNumJumps(SoundDesc *sound);
+	int getRegionOffset(SoundDesc *sound, int region);
+	int getRegionLength(SoundDesc *sound, int region);
+	int getJumpIdByRegionAndHookId(SoundDesc *sound, int region, int hookId);
+	int getRegionIdByJumpId(SoundDesc *sound, int jumpId);
+	int getJumpHookId(SoundDesc *sound, int number);
+	int getJumpFade(SoundDesc *sound, int number);
+
+	int32 getDataFromRegion(SoundDesc *sound, int region, byte **buf, int32 offset, int32 size, int32 *flags);
+};
+
+} // end of namespace Grim
+
+#endif