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SDL_esdaudio.h
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2006 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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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
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Sam Lantinga
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slouken@libsdl.org
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*/
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#include "SDL_config.h"
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#ifndef _SDL_esdaudio_h
#define _SDL_esdaudio_h
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#include "../SDL_sysaudio.h"
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/* Hidden "this" pointer for the video functions */
#define _THIS SDL_AudioDevice *this
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struct SDL_PrivateAudioData
{
/* The file descriptor for the audio device */
int audio_fd;
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/* The parent process id, to detect when application quits */
pid_t parent;
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/* Raw mixing buffer */
Uint8 *mixbuf;
int mixlen;
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/* Support for audio timing using a timer */
float frame_ticks;
float next_frame;
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};
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#define FUDGE_TICKS 10 /* The scheduler overhead ticks per frame */
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/* Old variable names */
#define audio_fd (this->hidden->audio_fd)
#define parent (this->hidden->parent)
#define mixbuf (this->hidden->mixbuf)
#define mixlen (this->hidden->mixlen)
#define frame_ticks (this->hidden->frame_ticks)
#define next_frame (this->hidden->next_frame)
#endif /* _SDL_esdaudio_h */
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/* vi: set ts=4 sw=4 expandtab: */