Mercurial > sdl-ios-xcode
view src/audio/macrom/SDL_romaudio.h @ 4333:55717a755897 SDL-1.2
Switched from setting the period size and count to setting the buffer size directly, based on feedback from the ALSA development list:
http://mailman.alsa-project.org/pipermail/alsa-devel/2009-October/022267.html
This has the nice side effect of reducing latency on my SBLive! card.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Tue, 13 Oct 2009 09:56:15 +0000 |
parents | a1b03ba2fcd0 |
children |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2009 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details. 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 Sam Lantinga slouken@libsdl.org */ #include "SDL_config.h" #ifndef _SDL_romaudio_h #define _SDL_romaudio_h #include "../SDL_sysaudio.h" /* This is Ryan's improved MacOS sound code, with locking support */ #define USE_RYANS_SOUNDCODE /* Hidden "this" pointer for the video functions */ #define _THIS SDL_AudioDevice *this struct SDL_PrivateAudioData { /* Sound manager audio channel */ SndChannelPtr channel; #if defined(TARGET_API_MAC_CARBON) || defined(USE_RYANS_SOUNDCODE) /* FIXME: Add Ryan's static data here */ #else /* Double buffering variables */ SndDoubleBufferPtr audio_buf[2]; #endif }; /* Old variable names */ #define channel (this->hidden->channel) #define audio_buf (this->hidden->audio_buf) #endif /* _SDL_romaudio_h */