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engines/cge2/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 Sfinx source code
+ * Copyright (c) 1994-1997 Janusz B. Wisniewski and L.K. Avalon
+ */
+
+#ifndef CGE2_SOUND_H
+#define CGE2_SOUND_H
+
+#include "audio/midiplayer.h"
+#include "audio/mixer.h"
+
+namespace Audio {
+class RewindableAudioStream;
+}
+
+namespace CGE2 {
+
+class CGE2Engine;
+class EncryptedStream;
+
+// 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;
+
+	explicit Sound(CGE2Engine *vm);
+	~Sound();
+	void open();
+	void close();
+	void play(Audio::Mixer::SoundType soundType, int ref, int sub, int pan = 8);
+	int16 getRepeat();
+	void setRepeat(int16 count);
+	void stop();
+	void checkSoundHandles();
+private:
+	int _soundRepeatCount;
+	CGE2Engine *_vm;
+	Audio::SoundHandle _sfxHandle;
+	Audio::SoundHandle _speechHandle;
+	Audio::RewindableAudioStream *_audioStream;
+
+	void sndDigiStart(SmpInfo *PSmpInfo, Audio::Mixer::SoundType soundType);
+	void sndDigiStop(Audio::SoundHandle &handle);
+};
+
+class Fx {
+	CGE2Engine *_vm;
+
+	DataCk *loadWave(EncryptedStream *file);
+	Common::String name(int ref, int sub);
+public:
+	DataCk *_current;
+
+	Fx(CGE2Engine *vm, int size);
+	~Fx();
+	void clear();
+	bool exist(int ref, int sub = 0);
+	DataCk *load(int ref, int sub = 0);
+};
+
+class MusicPlayer: public Audio::MidiPlayer {
+private:
+	CGE2Engine *_vm;
+	byte *_data;
+	int _dataSize;
+	bool _isGM;
+
+	// Start MIDI File
+	void sndMidiStart();
+
+	// Stop MIDI File
+	void sndMidiStop();
+public:
+	explicit MusicPlayer(CGE2Engine *vm);
+	~MusicPlayer() override;
+
+	void loadMidi(int ref);
+	void killMidi();
+
+	void send(uint32 b) override;
+	void sendToChannel(byte channel, uint32 b) override;
+};
+
+} // End of namespace CGE2
+
+#endif // CGE2_SOUND_H