SCUMM: Move class Player_V2CMS to its own header file

svn-id: r53829

1 files changed, 213 insertions, 0 deletions

diff --git a/engines/scumm/player_v2cms.h b/engines/scumm/player_v2cms.h
new file mode 100644
index 0000000000..20640b1d60
--- /dev/null
+++ b/engines/scumm/player_v2cms.h
@@ -0,0 +1,213 @@
+/* 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 2
+ * 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#ifndef SCUMM_PLAYER_V2CMS_H
+#define SCUMM_PLAYER_V2CMS_H
+
+#include "scumm/player_v2.h"	// for channel_data
+
+class CMSEmulator;
+
+namespace Scumm {
+
+class ScummEngine;
+
+
+/**
+ * Scumm V2 CMS/Gameblaster MIDI driver.
+ */
+class Player_V2CMS : public Audio::AudioStream, public MusicEngine {
+public:
+	Player_V2CMS(ScummEngine *scumm, Audio::Mixer *mixer);
+	virtual ~Player_V2CMS();
+
+	virtual void setMusicVolume(int vol);
+	virtual void startSound(int sound);
+	virtual void stopSound(int sound);
+	virtual void stopAllSounds();
+	virtual int  getMusicTimer();
+	virtual int  getSoundStatus(int sound) const;
+
+	// AudioStream API
+	int readBuffer(int16 *buffer, const int numSamples);
+	bool isStereo() const { return true; }
+	bool endOfData() const { return false; }
+	int getRate() const { return _sampleRate; }
+
+protected:
+
+#include "common/pack-start.h"	// START STRUCT PACKING
+	struct Voice {
+		byte attack;
+		byte decay;
+		byte sustain;
+		byte release;
+		byte octadd;
+		int16 vibrato;
+		int16 vibrato2;
+		int16 noise;
+	} PACKED_STRUCT;
+
+	struct Voice2 {
+		byte *amplitudeOutput;
+		byte *freqOutput;
+		byte *octaveOutput;
+
+		uint8 channel;
+		int8 sustainLevel;
+		int8 attackRate;
+		uint8 maxAmpl;
+		int8 decayRate;
+		int8 sustainRate;
+		int8 releaseRate;
+		int8 releaseTime;
+		int8 vibratoRate;
+		int8 vibratoDepth;
+
+		int8 curVibratoRate;
+		int8 curVibratoUnk;
+
+		int8 unkVibratoRate;
+		int8 unkVibratoDepth;
+
+		int8 unkRate;
+		int8 unkCount;
+
+		int nextProcessState;
+		int8 curVolume;
+		int8 curOctave;
+		int8 curFreq;
+
+		int8 octaveAdd;
+
+		int8 playingNote;
+		Voice2 *nextVoice;
+
+		byte chanNumber;
+	} PACKED_STRUCT;
+
+	struct MusicChip {
+		byte ampl[4];
+		byte freq[4];
+		byte octave[2];
+	} PACKED_STRUCT;
+#include "common/pack-end.h"	// END STRUCT PACKING
+
+	Voice _cmsVoicesBase[16];
+	Voice2 _cmsVoices[8];
+	MusicChip _cmsChips[2];
+
+	int8 _tempo;
+	int8 _tempoSum;
+	byte _looping;
+	byte _octaveMask;
+	int16 _midiDelay;
+	Voice2 *_midiChannel[16];
+	byte _midiChannelUse[16];
+	byte *_midiData;
+	byte *_midiSongBegin;
+
+	int _loadedMidiSong;
+
+	byte _lastMidiCommand;
+	uint _outputTableReady;
+	byte _clkFrequenz;
+	byte _restart;
+	byte _curSno;
+
+	void loadMidiData(byte *data, int sound);
+	void play();
+
+	void processChannel(Voice2 *channel);
+	void processRelease(Voice2 *channel);
+	void processAttack(Voice2 *channel);
+	void processDecay(Voice2 *channel);
+	void processSustain(Voice2 *channel);
+	void processVibrato(Voice2 *channel);
+
+	void playMusicChips(const MusicChip *table);
+	void playNote(byte *&data);
+	void clearNote(byte *&data);
+	void offAllChannels();
+	void playVoice();
+	void processMidiData(uint ticks);
+
+	Voice2 *getFreeVoice();
+	Voice2 *getPlayVoice(byte param);
+
+	// from Player_V2
+protected:
+	bool _isV3Game;
+	Audio::Mixer *_mixer;
+	Audio::SoundHandle _soundHandle;
+	ScummEngine *_vm;
+
+	CMSEmulator *_cmsEmu;
+
+	int _header_len;
+
+	uint32 _sampleRate;
+	uint32 _next_tick;
+	uint32 _tick_len;
+
+	int _timer_count[4];
+	int _timer_output;
+
+	int   _current_nr;
+	byte *_current_data;
+	int   _next_nr;
+	byte *_next_data;
+	byte *_retaddr;
+
+	Common::Mutex _mutex;
+
+private:
+	union ChannelInfo {
+		channel_data d;
+		uint16 array[sizeof(channel_data)/2];
+	};
+
+	int _music_timer;
+	int _music_timer_ctr;
+	int _ticks_per_music_timer;
+
+	ChannelInfo _channels[5];
+
+protected:
+	virtual void nextTick();
+	virtual void clear_channel(int i);
+	virtual void chainSound(int nr, byte *data);
+	virtual void chainNextSound();
+
+private:
+	void do_mix(int16 *buf, uint len);
+
+	void execute_cmd(ChannelInfo *channel);
+	void next_freqs(ChannelInfo *channel);
+};
+
+} // End of namespace Scumm
+
+#endif