author | Sam Lantinga <slouken@libsdl.org> |
Wed, 16 Feb 2011 17:17:21 -0800 | |
changeset 5328 | f34a5f9ce9f6 |
parent 5262 | b530ef003506 |
child 5535 | 96594ac5fd1a |
permissions | -rw-r--r-- |
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/* |
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SDL - Simple DirectMedia Layer |
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Copyright (C) 1997-2011 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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#include "SDL_video.h" |
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/* This is the software implementation of the YUV texture support */ |
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struct SDL_SW_YUVTexture |
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{ |
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Uint32 format; |
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Uint32 target_format; |
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int w, h; |
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Uint8 *pixels; |
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int *colortab; |
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Uint32 *rgb_2_pix; |
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void (*Display1X) (int *colortab, Uint32 * rgb_2_pix, |
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unsigned char *lum, unsigned char *cr, |
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unsigned char *cb, unsigned char *out, |
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int rows, int cols, int mod); |
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void (*Display2X) (int *colortab, Uint32 * rgb_2_pix, |
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unsigned char *lum, unsigned char *cr, |
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unsigned char *cb, unsigned char *out, |
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int rows, int cols, int mod); |
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/* These are just so we don't have to allocate them separately */ |
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Uint16 pitches[3]; |
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Uint8 *planes[3]; |
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/* This is a temporary surface in case we have to stretch copy */ |
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SDL_Surface *stretch; |
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SDL_Surface *display; |
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}; |
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typedef struct SDL_SW_YUVTexture SDL_SW_YUVTexture; |
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SDL_SW_YUVTexture *SDL_SW_CreateYUVTexture(Uint32 format, int w, int h); |
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int SDL_SW_QueryYUVTexturePixels(SDL_SW_YUVTexture * swdata, void **pixels, |
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int *pitch); |
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int SDL_SW_UpdateYUVTexture(SDL_SW_YUVTexture * swdata, const SDL_Rect * rect, |
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const void *pixels, int pitch); |
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int SDL_SW_LockYUVTexture(SDL_SW_YUVTexture * swdata, const SDL_Rect * rect, |
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void **pixels, int *pitch); |
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void SDL_SW_UnlockYUVTexture(SDL_SW_YUVTexture * swdata); |
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int SDL_SW_CopyYUVToRGB(SDL_SW_YUVTexture * swdata, const SDL_Rect * srcrect, |
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Uint32 target_format, int w, int h, void *pixels, |
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int pitch); |
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void SDL_SW_DestroyYUVTexture(SDL_SW_YUVTexture * swdata); |
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/* vi: set ts=4 sw=4 expandtab: */ |