include/SDL/GP_SDL.h

   1 /*****************************************************************************
   2  * This file is part of gfxprim library.                                     *
   3  *                                                                           *
   4  * Gfxprim is free software; you can redistribute it and/or                  *
   5  * modify it under the terms of the GNU Lesser General Public                *
   6  * License as published by the Free Software Foundation; either              *
   7  * version 2.1 of the License, or (at your option) any later version.        *
   8  *                                                                           *
   9  * Gfxprim is distributed in the hope that it will be useful,                *
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of            *
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU         *
  12  * Lesser General Public License for more details.                           *
  13  *                                                                           *
  14  * You should have received a copy of the GNU Lesser General Public          *
  15  * License along with gfxprim; if not, write to the Free Software            *
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor,                        *
  17  * Boston, MA  02110-1301  USA                                               *
  18  *                                                                           *
  19  * Copyright (C) 2009-2010 Jiri "BlueBear" Dluhos                            *
  20  *                         <jiri.bluebear.dluhos@gmail.com>                  *
  21  *                                                                           *
  22  * Copyright (C) 2009-2010 Cyril Hrubis <metan@ucw.cz>                       *
  23  *                                                                           *
  24  *****************************************************************************/
  25
  26 #ifndef GP_SDL_H
  27 #define GP_SDL_H
  28
  29 #include <SDL/SDL.h>
  30
  31 #include "GP.h"
  32 #include "GP_SDL_Context.h"
  33 #include "GP_SDL_VideoInit.h"
  34
  35 #define GP_SDL_BYTES_PER_PIXEL(target) (target->format->BytesPerPixel)
  36
  37 #define GP_SDL_BYTES_PER_LINE(target) (target->pitch)
  38
  39 #define GP_SDL_PIXELS(target) ((uint8_t *)(target->pixels))
  40
  41 #define GP_SDL_PIXEL_ADDR(target, x, y) ( \
  42         GP_SDL_PIXELS(target) \
  43         + y * GP_SDL_BYTES_PER_LINE(target) \
  44         + x * GP_SDL_BYTES_PER_PIXEL(target) \
  45 )
  46
  47 #endif /* GP_SDL_H */