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/*
* Copyright (C) 2002-2004 The DOSBox Team
*
* 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.
*/
typedef void (*MIXER_MixHandler)(Bit8u * sampdate,Bit32u len);
typedef void (*MIXER_Handler)(Bitu len);
enum BlahModes {
MIXER_8MONO,MIXER_8STEREO,
MIXER_16MONO,MIXER_16STEREO
};
enum MixerModes {
M_8M,M_8S,
M_16M,M_16S,
};
#define MIXER_BUFSIZE (16*1024)
#define MIXER_BUFMASK (MIXER_BUFSIZE-1)
extern Bit8u MixTemp[MIXER_BUFSIZE];
#define MAX_AUDIO ((1<<(16-1))-1)
#define MIN_AUDIO -(1<<(16-1))
class MixerChannel {
public:
void SetVolume(float _left,float _right);
void UpdateVolume(void);
void SetFreq(Bitu _freq);
void Mix(Bitu _needed);
void AddSilence(void); //Fill up until needed
template<bool _8bit,bool stereo>
void AddSamples(Bitu len,void * data);
void AddSamples_m8(Bitu len,Bit8u * data);
void AddSamples_s8(Bitu len,Bit8u * data);
void AddSamples_m16(Bitu len,Bit16s * data);
void AddSamples_s16(Bitu len,Bit16s * data);
void AddStretched(Bitu len,Bit16s * data); //Strech block up into needed data
void FillUp(void);
void Enable(bool _yesno);
MIXER_Handler handler;
float volmain[2];
Bit32s volmul[2];
Bitu freq_add,freq_index;
Bitu done,needed;
Bits last[2];
char * name;
bool enabled;
MixerChannel * next;
};
MixerChannel * MIXER_AddChannel(MIXER_Handler handler,Bitu freq,char * name);
MixerChannel * MIXER_FindChannel(const char * name);
/* PC Speakers functions, tightly related to the timer functions */
void PCSPEAKER_SetCounter(Bitu cntr,Bitu mode);
void PCSPEAKER_SetType(Bitu mode);
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