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Yamagi Burmeister 2013-04-20 13:47:15 +02:00
parent ef7c85bbcd
commit 910dc421c6
1 changed files with 9 additions and 6 deletions
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15
src/backends/sdl/sound.c
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@ -1,6 +1,6 @@
/*
* Copyright (C) 1997-2001 Id Software, Inc.
* Copyright (C) 2010 Yamagi Burmeister
* Copyright (C) 2010, 2013 Yamagi Burmeister
* Copyright (C) 2005 Ryan C. Gordon
*
* This program is free software; you can redistribute it and/or modify
@ -21,11 +21,14 @@
*
* =======================================================================
*
* The lower layer of the sound system. It utilizes SDL for writing the
* sound data to the device. This file was rewritten by Yamagi to solve
* a lot problems arrising from the old Icculus Quake 2 SDL backend like
* stuttering and cracking. This implementation is based on ioQuake3s
* snd_sdl.c.
* SDL sound backend. Since SDL is just an API for sound playback, we
* must caculate everything in software: mixing, resampling, stereo
* spartializations, etc. Therefor this file is rather complex. :)
* Samples are read from the cache (see the upper layer of the sound
* system), manipulated and written into sound.buffer. sound.buffer is
* passed to SDL (in fact requested by SDL via the callback) and played
* with a platform dependend SDL driver. Parts of this file are based
* on ioQuake3s snd_sdl.c.
*
* =======================================================================
*/