utils/imgcombine.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, "imgcombine filea fileb out\n");
  10                 return 1;
  11         }
  12         const char *a = argv[1];
  13         const char *b = argv[2];
  14         const char *out = argv[3];
  15         struct Pix* pa = pixRead(a);
  16         struct Pix* pb = pixRead(b);
  17         assert(pa->w == pb->w && pa->h == pb->h);
  18         struct Pix* pa32 = pixConvertTo32(pa);
  19         struct Pix* pb32 = pixConvertTo32(pb);
  20         struct Pix* pout = pixCreate(pa32->w, pb32->h, 32);
  21         int x, y;
  22         for(y = 0; y < pa->h; y++)
  23                 for(x = 0; x < pa->w; x++)
  24                         if(((uint32_t*)pa->data)[y * pa->w + x] == 0)
  25                                 ((uint32_t*)pout->data)[y * pa->w + x] = ((uint32_t*)pb->data)[y * pa->w + x];
  26                         else
  27                                 ((uint32_t*)pout->data)[y * pa->w + x] = ((uint32_t*)pa->data)[y * pa->w + x];
  28         pixWritePng(out, pout, 0);
  29         return 0;
  30 }