AppleWin/source/SoundCore.h

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C
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#pragma once
#define MAX_SAMPLES (16*1024)
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#define SAFE_RELEASE(p) { if(p) { (p)->Release(); (p)=NULL; } }
struct VOICE
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{
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
std::string name;
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VOICE(void)
{
lpDSBvoice = NULL;
lpDSNotify = NULL;
bActive = false;
bMute = false;
nVolume = 0;
nFadeVolume = 0;
dwUserVolume = 0;
bIsSpeaker = false;
bRecentlyActive = false;
name = "";
}
};
typedef VOICE* PVOICE;
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HRESULT DSGetLock(LPDIRECTSOUNDBUFFER pVoice, DWORD dwOffset, DWORD dwBytes,
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SHORT** ppDSLockedBuffer0, DWORD* pdwDSLockedBufferSize0,
SHORT** ppDSLockedBuffer1, DWORD* pdwDSLockedBufferSize1);
HRESULT DSGetSoundBuffer(VOICE* pVoice, DWORD dwFlags, DWORD dwBufferSize, DWORD nSampleRate, int nChannels, const char* pszDevName);
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void DSReleaseSoundBuffer(VOICE* pVoice);
bool DSVoiceStop(PVOICE Voice);
bool DSZeroVoiceBuffer(PVOICE Voice, DWORD dwBufferSize);
bool DSZeroVoiceWritableBuffer(PVOICE Voice, DWORD dwBufferSize);
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enum eFADE {FADE_NONE, FADE_IN, FADE_OUT};
void SoundCore_SetFade(eFADE FadeType);
bool SoundCore_GetTimerState();
void SoundCore_TweakVolumes();
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int SoundCore_GetErrorInc();
void SoundCore_SetErrorInc(const int nErrorInc);
int SoundCore_GetErrorMax();
void SoundCore_SetErrorMax(const int nErrorMax);
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bool DSInit();
void DSUninit();
LONG NewVolume(DWORD dwVolume, DWORD dwVolumeMax);
void SysClk_WaitTimer();
bool SysClk_InitTimer();
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void SysClk_UninitTimer();
void SysClk_StartTimerUsec(DWORD dwUsecPeriod);
void SysClk_StopTimer();
//
extern bool g_bDSAvailable;