Mercurial > sdl-ios-xcode
view src/audio/sun/SDL_sunaudio.h @ 3335:b8d313de8a65
Adam Strzelecki to SDL
Since current DirectFB implementation is incomplete for YUV surfaces (actually causes segmentation faults when trying Lock and use YUV planar textures) I decided to fix it a bit.
Here's a patch that should make DirectFB properly support YUV both packed and planar (3 planes).
(1) Removed SDL_BYTESPERPIXEL at all in favor of DFB_BYTES_PER_PIXEL(SDLToDFBPixelFormat(fmt)) which does return always proper BPP for YUVs too, coz SDL_BYTESPERPIXEL returns incorrect values for FOURCCs
(2) Fixed data->pixels allocation for planar YUVs in CreateTexture, it should allocate 150% more space
(3) Copy other planes for planar YUVs in UpdateTexture
(4) Moved checking if format is supported at all with DirectFB on CreateTexture at the beginning of the code
Waiting for comments,
--
Adam Strzelecki | nanoant.com
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sun, 04 Oct 2009 04:03:37 +0000 |
parents | 99210400e8b9 |
children | f7b03b6838cb |
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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_sunaudio_h #define _SDL_sunaudio_h #include "../SDL_sysaudio.h" /* Hidden "this" pointer for the audio functions */ #define _THIS SDL_AudioDevice *this struct SDL_PrivateAudioData { /* The file descriptor for the audio device */ int audio_fd; SDL_AudioFormat audio_fmt; /* The app audio format */ Uint8 *mixbuf; /* The app mixing buffer */ int ulaw_only; /* Flag -- does hardware only output U-law? */ Uint8 *ulaw_buf; /* The U-law mixing buffer */ Sint32 written; /* The number of samples written */ int fragsize; /* The audio fragment size in samples */ int frequency; /* The audio frequency in KHz */ }; /* Old variable names */ #define audio_fd (this->hidden->audio_fd) #define audio_fmt (this->hidden->audio_fmt) #define mixbuf (this->hidden->mixbuf) #define ulaw_only (this->hidden->ulaw_only) #define ulaw_buf (this->hidden->ulaw_buf) #define written (this->hidden->written) #define fragsize (this->hidden->fragsize) #define frequency (this->hidden->frequency) #endif /* _SDL_sunaudio_h */ /* vi: set ts=4 sw=4 expandtab: */