apple2ix/src/audio/soundcore.h

105 lines
2.7 KiB
C

/*
* Apple // emulator for *nix
*
* This software package is subject to the GNU General Public License
* version 2 or later (your choice) as published by the Free Software
* Foundation.
*
* THERE ARE NO WARRANTIES WHATSOEVER.
*
*/
/*
* Sources derived from AppleWin emulator
* Ported by Aaron Culliney
*/
#ifndef _SOUNDCORE_H_
#define _SOUNDCORE_H_
#include "audio/ds-shim.h"
#define MAX_SAMPLES (8*1024)
#if defined(APPLE2IX)
#define SAFE_RELEASE(p) Free(p)
#else
#define SAFE_RELEASE(p) { if(p) { (p)->Release(); (p)=NULL; } }
#endif
// Define max 1 of these:
//#define RIFF_SPKR
//#define RIFF_MB
#ifdef APPLE2IX
extern bool g_bDisableDirectSound;
#endif
typedef struct
{
LPDIRECTSOUNDBUFFER lpDSBvoice;
#ifdef APPLE2IX
// apparently lpDSNotify isn't used...
#define LPDIRECTSOUNDNOTIFY void*
#endif
LPDIRECTSOUNDNOTIFY lpDSNotify;
bool bActive; // Playback is active
bool bMute;
LONG nVolume; // Current volume (as used by DirectSound)
LONG nFadeVolume; // Current fade volume (as used by DirectSound)
DWORD dwUserVolume; // Volume from slider on Property Sheet (0=Max)
bool bIsSpeaker;
bool bRecentlyActive; // (Speaker only) false after 0.2s of speaker inactivity
} VOICE, *PVOICE;
bool DSGetLock(LPDIRECTSOUNDBUFFER pVoice, DWORD dwOffset, DWORD dwBytes,
SHORT** ppDSLockedBuffer0, DWORD* pdwDSLockedBufferSize0,
SHORT** ppDSLockedBuffer1, DWORD* pdwDSLockedBufferSize1);
HRESULT DSGetSoundBuffer(VOICE* pVoice, DWORD dwFlags, DWORD dwBufferSize, DWORD nSampleRate, int nChannels);
void DSReleaseSoundBuffer(VOICE* pVoice);
bool DSZeroVoiceBuffer(PVOICE Voice, char* pszDevName, DWORD dwBufferSize);
bool DSZeroVoiceWritableBuffer(PVOICE Voice, char* pszDevName, DWORD dwBufferSize);
#if defined(APPLE2IX)
typedef enum eFADE {FADE_NONE, FADE_IN, FADE_OUT} eFADE;
#else
enum eFADE {FADE_NONE, FADE_IN, FADE_OUT};
#endif
void SoundCore_SetFade(eFADE FadeType);
bool SoundCore_GetTimerState();
void SoundCore_TweakVolumes();
int SoundCore_GetErrorInc();
void SoundCore_SetErrorInc(const int nErrorInc);
int SoundCore_GetErrorMax();
void SoundCore_SetErrorMax(const int nErrorMax);
bool DSInit();
void DSUninit();
LONG NewVolume(DWORD dwVolume, DWORD dwVolumeMax);
void SysClk_WaitTimer();
bool SysClk_InitTimer();
void SysClk_UninitTimer();
void SysClk_StartTimerUsec(DWORD dwUsecPeriod);
void SysClk_StopTimer();
//
extern bool g_bDSAvailable;
#ifdef APPLE2IX
typedef struct IDirectSound SoundSystemStruct;
long SoundSystemCreate(const char *sound_device, SoundSystemStruct **sound_struct);
long SoundSystemDestroy(SoundSystemStruct **sound_struct);
long SoundSystemPause();
long SoundSystemUnpause();
long SoundSystemEnumerate(char ***sound_devices, const int maxcount);
#endif
#endif /* whole file */