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Annotation of frontvm/hardware/audio.h, revision 1.1.1.2

1.1       root        1: /*
                      2:   Hatari - audio.h
                      3: 
                      4:   This file is distributed under the GNU Public License, version 2 or at
                      5:   your option any later version. Read the file gpl.txt for details.
                      6: */
                      7: 
                      8: #ifndef HATARI_AUDIO_H
                      9: #define HATARI_AUDIO_H
                     10: 
                     11: #include <SDL_types.h>
                     12: 
                     13: /* Frequency index */
                     14: enum
                     15: {
                     16:   FREQ_11Khz,
                     17:   FREQ_22Khz,
                     18:   FREQ_44Khz
                     19: };
                     20: 
                     21: /* Ramp settings to fade sound in/out */
                     22: enum
                     23: {
                     24:   RAMP_HOLD,
                     25:   RAMP_UP,
                     26:   RAMP_DOWN
                     27: };
                     28: #define  RAMP_UP_VOLUME_LEVEL  0.20f    /* (1.0f/5.f) */
                     29: #define  RAMP_DOWN_VOLUME_LEVEL  0.20f  /* (1.0f/5.f) */
                     30: 
                     31: 
                     32: extern int SoundPlayBackFrequencies[];
                     33: extern BOOL bDisableSound;
                     34: extern BOOL bSoundWorking;
                     35: extern int OutputAudioFreqIndex;
                     36: extern int SoundBufferSize;
                     37: extern int CompleteSndBufIdx;
                     38: 
1.1.1.2 ! root       39: extern void Call_PlaySFX ();
1.1       root       40: extern void Audio_Reset ();
                     41: extern void Audio_Init(void);
                     42: extern void Audio_UnInit(void);
                     43: extern void Audio_Lock(void);
                     44: extern void Audio_Unlock(void);
                     45: extern void Audio_FreeSoundBuffer(void);
                     46: extern void Audio_SetOutputAudioFreq(int Frequency);
                     47: extern void Audio_EnableAudio(BOOL bEnable);
                     48: extern void Audio_WriteSamplesIntoBuffer(Sint8 *pSamples,int Index, int Length, int RampSetting, Sint8 *pDestBuffer);
                     49: 
                     50: #endif  /* HATARI_AUDIO_H */

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