1 files changed, 145 insertions, 0 deletions
diff --git a/engines/scumm/player/v2base.h b/engines/scumm/player/v2base.h
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+++ b/engines/scumm/player/v2base.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 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.
+ *
+ */
+
+#ifndef SCUMM_PLAYER_V2BASE_H
+#define SCUMM_PLAYER_V2BASE_H
+
+#include "common/scummsys.h"
+#include "common/mutex.h"
+#include "scumm/music.h"
+#include "audio/audiostream.h"
+#include "audio/mixer.h"
+
+namespace Scumm {
+
+class ScummEngine;
+
+
+#include "common/pack-start.h"	// START STRUCT PACKING
+
+struct channel_data {
+	uint16 time_left;          // 00
+	uint16 next_cmd;           // 02
+	uint16 base_freq;          // 04
+	uint16 freq_delta;         // 06
+	uint16 freq;               // 08
+	uint16 volume;             // 10
+	uint16 volume_delta;       // 12
+	uint16 tempo;              // 14
+	uint16 inter_note_pause;   // 16
+	uint16 transpose;          // 18
+	uint16 note_length;        // 20
+	uint16 hull_curve;         // 22
+	uint16 hull_offset;        // 24
+	uint16 hull_counter;       // 26
+	uint16 freqmod_table;      // 28
+	uint16 freqmod_offset;     // 30
+	uint16 freqmod_incr;       // 32
+	uint16 freqmod_multiplier; // 34
+	uint16 freqmod_modulo;     // 36
+	uint16 unknown[4];         // 38 - 44
+	uint16 music_timer;        // 46
+	uint16 music_script_nr;    // 48
+} PACKED_STRUCT;
+
+#include "common/pack-end.h"	// END STRUCT PACKING
+
+/**
+ * Common base class for Player_V2 and Player_V2CMS.
+ */
+class Player_V2Base : public Audio::AudioStream, public MusicEngine {
+public:
+	Player_V2Base(ScummEngine *scumm, Audio::Mixer *mixer, bool pcjr);
+	virtual ~Player_V2Base();
+
+	// MusicEngine API
+// 	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) {
+		do_mix(buffer, numSamples / 2);
+		return numSamples;
+	}
+*/
+	virtual bool isStereo() const { return true; }
+	virtual bool endOfData() const { return false; }
+	virtual int getRate() const { return _sampleRate; }
+
+protected:
+	enum {
+		FIXP_SHIFT = 16
+	};
+
+	bool _isV3Game;
+	Audio::Mixer *_mixer;
+	Audio::SoundHandle _soundHandle;
+	ScummEngine *_vm;
+
+	bool _pcjr;
+	int _header_len;
+
+	const uint32 _sampleRate;
+	uint32 _next_tick;
+	uint32 _tick_len;
+
+	int   _current_nr;
+	byte *_current_data;
+	int   _next_nr;
+	byte *_next_data;
+	byte *_retaddr;
+
+	Common::Mutex _mutex;
+
+	union ChannelInfo {
+		channel_data d;
+		uint16 array[sizeof(channel_data)/2];
+	};
+
+	ChannelInfo _channels[5];
+
+private:
+	int _music_timer;
+	int _music_timer_ctr;
+	int _ticks_per_music_timer;
+
+	const uint16 *_freqs_table;
+
+protected:
+	virtual void nextTick();
+	virtual void clear_channel(int i);
+	virtual void chainSound(int nr, byte *data);
+	virtual void chainNextSound();
+
+	void execute_cmd(ChannelInfo *channel);
+	void next_freqs(ChannelInfo *channel);
+};
+
+
+} // End of namespace Scumm
+
+#endif