53ef50a03a
- rename from "libsndio" to "sndio" - remove support for "frame tick" synchronization; nothing uses it - as with many other sndio backends, the audio device block size is the buffer-write-size the application wants and there are 2 blocks per device buffer - if SDL will resample, increase the audio block and buffer size by the same ratio, so that device latency (or how much *time* the application has between write()s to not let the buffer underrun) does not change - allow applications to disable conversions tested with almost every port that uses this code (exceptions being some games that require non-free game data) on a device most likely to be affected by the changes (azalia(4) that only does 44.1 or 48 kHz s16) unoverriding conversion disabling exposes brokenness in a few other ports, those will be fixed soon
52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
/*
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* Copyright (c) 2008 Jacob Meuser <jakemsr@sdf.lonestar.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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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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};
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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 hdl (this->hidden->hdl)
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#endif /* _SDL_libsaaudio_h */
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