SDL_alsa_audio.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
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slouken@libsdl.org
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*/
#ifndef _ALSA_PCM_audio_h
#define _ALSA_PCM_audio_h
#include "SDL_sysaudio.h"
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#define ALSA_PCM_OLD_HW_PARAMS_API
#define ALSA_PCM_OLD_SW_PARAMS_API
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#include <alsa/asoundlib.h>
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/* Hidden "this" pointer for the video functions */
#define _THIS SDL_AudioDevice *this
struct SDL_PrivateAudioData {
/* The audio device handle */
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snd_pcm_t *pcm_handle;
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/* The parent process id, to detect when application quits */
pid_t parent;
/* Raw mixing buffer */
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Uint8 *mixbuf;
int mixlen;
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};
/* Old variable names */
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#define pcm_handle (this->hidden->pcm_handle)
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#define parent (this->hidden->parent)
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#define mixbuf (this->hidden->mixbuf)
#define mixlen (this->hidden->mixlen)
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#endif /* _ALSA_PCM_audio_h */