utils/spritesheet.c

   1 #include <leptonica/allheaders.h>
   2 //RcB: LINK "-llept"
   3 #include <stdio.h>
   4 #include <assert.h>
   5
   6 int main(int argc, char**argv) {
   7
   8         if(argc < 4) {
   9                 dprintf(2, "spritesheet outfilename pic1 pic2 ...\n");
  10                 return 1;
  11         }
  12         int startarg = 1;
  13         const char *out = argv[startarg++];
  14         struct Pix* pout = 0;
  15         int oy;
  16         const int pixcount = argc - startarg;
  17         while(startarg < argc) {
  18                 const char *a = argv[startarg++];
  19                 struct Pix* pa = pixRead(a);
  20                 struct Pix* pa32 = pixConvertTo32(pa);
  21
  22                 if(pout == 0) {
  23                         pout = pixCreate(pa32->w, pa32->h * pixcount, 32);
  24                         oy = 0;
  25                 } else {
  26                         assert(pa32->w == pout->w && pa32->h == pout->h / pixcount);
  27                 }
  28                 int x, y;
  29                 for(y = 0; y < pa32->h; y++, oy++)
  30                         for(x = 0; x < pa32->w; x++)
  31                                 ((uint32_t*)pout->data)[oy * pa32->w + x] = ((uint32_t*)pa32->data)[y * pa32->w + x];
  32
  33                 pixDestroy(&pa);
  34                 pixDestroy(&pa32);
  35         }
  36         pixWritePng(out, pout, 0);
  37         return 0;
  38
  39 }