62 lines
1.8 KiB
C
62 lines
1.8 KiB
C
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/*
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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,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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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
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License along with this library; if not, write to the Free Software
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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_libsndioaudio_h
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#define _SDL_libsndioaudio_h
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#include <sndio.h>
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#include "../SDL_sysaudio.h"
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/* Hidden "this" pointer for the video functions */
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#define _THIS SDL_AudioDevice *this
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struct SDL_PrivateAudioData {
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/* The stream descriptor for the audio device */
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struct sio_hdl *hdl;
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/* The parent process id, to detect when application quits */
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pid_t parent;
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/* Raw mixing buffer */
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Uint8 *mixbuf;
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int mixlen;
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/* Support for audio timing using a timer, in addition to select() */
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float frame_ticks;
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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 */
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#define stream (this->hidden->stream)
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#define parent (this->hidden->parent)
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#define mixbuf (this->hidden->mixbuf)
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#define mixlen (this->hidden->mixlen)
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#define frame_ticks (this->hidden->frame_ticks)
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#define next_frame (this->hidden->next_frame)
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#define hdl (this->hidden->hdl)
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#endif /* _SDL_libsaaudio_h */
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