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SDL_mmeaudio.h
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2004 Sam Lantinga
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This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@libsdl.org
*/
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#include "SDL_config.h"
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/* Allow access to a raw mixing buffer */
#ifndef _SDL_lowaudio_h
#define _SDL_lowaudio_h
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#include "../SDL_sysaudio.h"
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/* Hidden "this" pointer for the audio functions */
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#define _THIS SDL_AudioDevice *this
#define NUM_BUFFERS 2
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struct SharedMem
{
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HWAVEOUT sound;
WAVEHDR wHdr[NUM_BUFFERS];
PCMWAVEFORMAT wFmt;
};
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struct SDL_PrivateAudioData
{
Uint8 *mixbuf; /* The raw allocated mixing buffer */
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struct SharedMem *shm;
int next_buffer;
};
#define shm (this->hidden->shm)
#define mixbuf (this->hidden->mixbuf)
#define next_buffer (this->hidden->next_buffer)
/* Old variable names */
#endif /* _SDL_lowaudio_h */
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/* vi: set ts=4 sw=4 expandtab: */