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engines/cge/sound.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/>.
+ *
+ */
+
+/*
+ * This code is based on original Soltys source code
+ * Copyright (c) 1994-1995 Janusz B. Wisniewski and L.K. Avalon
+ */
+
+#ifndef CGE_SOUND_H
+#define CGE_SOUND_H
+
+#include "cge/fileio.h"
+#include "audio/midiplayer.h"
+#include "audio/mixer.h"
+#include "common/memstream.h"
+
+namespace Audio {
+class RewindableAudioStream;
+}
+
+namespace CGE {
+
+class CGEEngine;
+
+// sample info
+struct SmpInfo {
+	const uint8  *_saddr;                              // address
+	uint16  _slen;                                     // length
+	uint16  _span;                                     // left/right pan (0-15)
+	int     _counter;                                  // number of time the sample should be played
+};
+
+class DataCk {
+	byte *_buf;
+	int _ckSize;
+public:
+	DataCk(byte *buf, int bufSize);
+	~DataCk();
+	inline const byte *addr() {
+		return _buf;
+	}
+	inline int size() {
+		return _ckSize;
+	}
+};
+
+class Sound {
+public:
+	SmpInfo _smpinf;
+
+	Sound(CGEEngine *vm);
+	~Sound();
+	void open();
+	void close();
+	void play(DataCk *wav, int pan);
+	int16 getRepeat();
+	void setRepeat(int16 count);
+	void stop();
+private:
+	int _soundRepeatCount;
+	CGEEngine *_vm;
+	Audio::SoundHandle _soundHandle;
+	Audio::RewindableAudioStream *_audioStream;
+
+	void sndDigiStart(SmpInfo *PSmpInfo);
+	void sndDigiStop(SmpInfo *PSmpInfo);
+};
+
+class Fx {
+	CGEEngine *_vm;
+	struct Handler {
+		int _ref;
+		DataCk *_wav;
+	} *_cache;
+	int _size;
+
+	DataCk *load(int idx, int ref);
+	DataCk *loadWave(EncryptedStream *file);
+	int find(int ref);
+public:
+	DataCk *_current;
+
+	Fx(CGEEngine *vm, int size);
+	~Fx();
+	void clear();
+	void preload(int ref0);
+	DataCk *operator[](int ref);
+};
+
+class MusicPlayer: public Audio::MidiPlayer {
+private:
+	CGEEngine *_vm;
+	byte *_data;
+	int _dataSize;
+	bool _isGM;
+
+	// Start MIDI File
+	void sndMidiStart();
+
+	// Stop MIDI File
+	void sndMidiStop();
+public:
+	MusicPlayer(CGEEngine *vm);
+	~MusicPlayer() override;
+
+	void loadMidi(int ref);
+	void killMidi();
+
+	void send(uint32 b) override;
+	void sendToChannel(byte channel, uint32 b) override;
+};
+
+} // End of namespace CGE
+
+#endif
+