AppleWin/source/SoundCore.h

51 lines
1.5 KiB
C

#pragma once
#define SAFE_RELEASE(p) { if(p) { (p)->Release(); (p)=NULL; } }
// Define max 1 of these:
//#define RIFF_SPKR
//#define RIFF_MB
typedef struct
{
LPDIRECTSOUNDBUFFER lpDSBvoice;
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);
enum eFADE {FADE_NONE, FADE_IN, FADE_OUT};
void SoundCore_SetFade(eFADE FadeType);
bool SoundCore_GetTimerState();
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;