src/image/sublib/SDL_to_picinfo.c

   1 #define  JPEG_IMAGES
   2 #include "SDL.h"
   3 #include "picinfo.h"
   4 #include "SDL_image.h"
   5
   6 void im_sdl_surface_to_picinfo(SDL_Surface* surface, PICINFO* pic)
   7 {
   8   int i;
   9
  10   pic->w=surface->w;
  11   pic->h=surface->h;
  12
  13   if(surface->format->BytesPerPixel==1)
  14   {
  15     pic->type=PIC8;
  16     pic->pic=(byte*)surface->pixels;
  17     surface->pixels=0;
  18     for(i=0;i<256;i++)
  19     {
  20       pic->pal[i*3]  =surface->format->palette->colors[i].r;
  21       pic->pal[i*3+1]=surface->format->palette->colors[i].g;
  22       pic->pal[i*3+2]=surface->format->palette->colors[i].b;
  23     }
  24     SDL_FreeSurface(surface);
  25   }
  26   else
  27   {
  28     pic->type=PIC24;
  29     pic->pic=(byte*)surface->pixels;
  30     surface->pixels=0;
  31     SDL_FreeSurface(surface);
  32   }
  33 }
  34
  35 int  im_load_image_through_loader(char* fname, PICINFO* to_pic,
  36                    int from_mem_size,
  37                    SDL_Surface* (*img_loader)(SDL_RWops*))
  38 {
  39   SDL_RWops    *rw;
  40   SDL_Surface  *surface;
  41
  42   if(!from_mem_size)
  43     rw=SDL_RWFromFile(fname,"rb");
  44   else
  45     rw=SDL_RWFromMem((void*)fname, from_mem_size);
  46
  47   surface=img_loader(rw);
  48
  49   SDL_FreeRW(rw);
  50
  51   im_sdl_surface_to_picinfo(surface,to_pic);
  52
  53   return 1;
  54 }
  55
  56 /******************************************************************/
  57
  58 int  im_load_gif(char* fname, PICINFO* to_pic, int from_mem_size)
  59 {
  60
  61   return im_load_image_through_loader(fname,to_pic,
  62                                       from_mem_size,IMG_LoadGIF_RW);
  63 }
  64