sound.h

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// Flash Plugin and Player
// Copyright (C) 1998 Olivier Debon
// 
// 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
// 
#ifndef _SOUND_H_
#define _SOUND_H_

#define GET_SOUND_RATE_CODE(f) (((f)&0x0c)>>2)

class Sound : public Character {
        long             soundRate;     // In hz
        long             stereo;        // True if stereo sound
        long             sampleSize;    // 1 or 2 bytes

        char            *samples;               // Array of samples
        long             nbSamples;

public:
        Sound(long id);
        ~Sound();
        void             setSoundFlags(long f);
        char            *setNbSamples(long n);

        long             getRate();
        long             getChannel();
        long             getNbSamples();
        long             getSampleSize();
        char            *getSamples();
};

struct SoundList {
        long     rate;
        long     stereo;
        long     sampleSize;
        long     nbSamples;
        long     remaining;
        char    *current;

        SoundList *next;
};

class SoundMixer {

        SoundList       *list;

// Class variables
static  long             dsp;           // Descriptor for /dev/dsp
static  char *           buffer;        // DMA buffer
static  long             blockSize;
static  long             nbInst;        // Number of instances

        // Sound Device Capabilities
static  long             soundRate;     // In hz
static  long             stereo;        // True if stereo sound
static  long             sampleSize;    // 1 or 2 bytes

public:
        SoundMixer(char*);
        ~SoundMixer();

        void             startSound(Sound *sound);      // Register a sound to be played
        void             stopSounds();          // Stop every current sounds in the instance

        long             playSounds();          // Actually play sounds of all instances
        long             fillSoundBuffer(SoundList *, char *buffer, long bufferSize); // Fill sound buffer
};

#endif /* _SOUND_H_ */

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