133 lines
4.8 KiB
C
133 lines
4.8 KiB
C
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//-----------------------------------------------------------------------------
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// File: dsutil.cpp
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//
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// Desc: Routines for dealing with sounds from resources
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//
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// Copyright (C) 1995-1999 Microsoft Corporation. All Rights Reserved.
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//-----------------------------------------------------------------------------
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#ifndef DSUTIL_H
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#define DSUTIL_H
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//-----------------------------------------------------------------------------
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// Helper routines
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//-----------------------------------------------------------------------------
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HRESULT DSUtil_FillSoundBuffer( LPDIRECTSOUNDBUFFER pDSB, BYTE* pbWaveData,
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DWORD dwWaveSize );
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HRESULT DSUtil_ParseWaveResource( VOID* pvRes, WAVEFORMATEX** ppWaveHeader,
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BYTE** ppbWaveData, DWORD* pdwWaveSize );
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//-----------------------------------------------------------------------------
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// Name: DSUtil_LoadSoundBuffer()
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// Desc: Loads an IDirectSoundBuffer from a Win32 resource in the current
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// application.
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//-----------------------------------------------------------------------------
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LPDIRECTSOUNDBUFFER DSUtil_LoadSoundBuffer( LPDIRECTSOUND* pDS,
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LPCTSTR strName );
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//-----------------------------------------------------------------------------
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// Name: DSUtil_ReloadSoundBuffer()
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// Desc: Reloads an IDirectSoundBuffer from a Win32 resource in the current
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// application. normally used to handle a DSERR_BUFFERLOST error.
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//-----------------------------------------------------------------------------
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HRESULT DSUtil_ReloadSoundBuffer( LPDIRECTSOUNDBUFFER pDSB, LPCTSTR strName );
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//-----------------------------------------------------------------------------
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// Name: DSUtil_GetWaveResource()
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// Desc: Finds a WAV resource in a Win32 module.
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//-----------------------------------------------------------------------------
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HRESULT DSUtil_GetWaveResource( HMODULE hModule, LPCTSTR strName,
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WAVEFORMATEX** ppWaveHeader, BYTE** ppbWaveData,
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DWORD* pdwWaveSize );
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//-----------------------------------------------------------------------------
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// Name: struct SoundObject
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// Desc: Used to manage individual sounds which need to be played multiple
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// times concurrently. A SoundObject represents a queue of
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// IDirectSoundBuffer objects which all refer to the same buffer memory.
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//-----------------------------------------------------------------------------
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struct SoundObject
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{
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BYTE* pbWaveData; // Ptr into wave resource (for restore)
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DWORD cbWaveSize; // Size of wave data (for restore)
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DWORD dwNumBuffers; // Number of sound buffers.
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DWORD dwCurrent; // Current sound buffer
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LPDIRECTSOUNDBUFFER* pdsbBuffers; // List of sound buffers
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};
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//-----------------------------------------------------------------------------
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// Name: DSUtil_CreateSound()
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// Desc: Loads a SoundObject from a Win32 resource in the current application.
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//-----------------------------------------------------------------------------
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SoundObject* DSUtil_CreateSound( LPDIRECTSOUND pDS, LPCTSTR strName,
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DWORD dwNumConcurrentBuffers );
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//-----------------------------------------------------------------------------
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// Name: DSUtil_DestroySound()
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// Desc: Frees a SoundObject and releases all of its buffers.
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//-----------------------------------------------------------------------------
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VOID DSUtil_DestroySound( SoundObject* pSound );
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//-----------------------------------------------------------------------------
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// Name: DSUtil_PlayPannedSound()
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// Desc: Play a sound, but first set the panning according to where the
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// object is on the screen. fScreenXPos is between -1.0f (left) and
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// 1.0f (right).
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//-----------------------------------------------------------------------------
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VOID DSUtil_PlayPannedSound( SoundObject* pSound, FLOAT fScreenXPos );
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//-----------------------------------------------------------------------------
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// Name: DSUtil_PlaySound()
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// Desc: Plays a buffer in a SoundObject.
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//-----------------------------------------------------------------------------
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HRESULT DSUtil_PlaySound( SoundObject* pSound, DWORD dwPlayFlags );
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//-----------------------------------------------------------------------------
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// Name: DSUtil_StopSound()
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// Desc: Stops one or more buffers in a SoundObject.
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//-----------------------------------------------------------------------------
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HRESULT DSUtil_StopSound( SoundObject* pSound );
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//-----------------------------------------------------------------------------
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// Name: DSUtil_GetFreeSoundBuffer()
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// Desc: Returns one of the cloned buffers that is not currently playing
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//-----------------------------------------------------------------------------
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LPDIRECTSOUNDBUFFER DSUtil_GetFreeSoundBuffer( SoundObject* pSound );
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#endif // DSUTIL_H
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