utils/bgcreate.c

   1 /* when using gfxrip and an uncompressed amiga save state,
   2  * we find at offset 401408 the map background tiles, followed
   3  * by other map sprites in 16x16, ST mode, 4bitplanes.
   4  * the first 16 tiles are background data.
   5  * to recreate the 64x64 bg tile, 4 lines of each bg sprite
   6  * are put horizontally into the output tile. */
   7 #include "../palpic.h"
   8 #include "leptonica/allheaders.h"
   9 #include <string.h>
  10 //RcB: LINK "-llept"
  11
  12 #include "../temp.c"
  13 #define sprite temp
  14 #define sprites_per_pic 8
  15 #define bgs 6
  16
  17 int main() {
  18         const struct palpic* f = & sprite .header;
  19         size_t seq;
  20         PIX* o = pixCreate(64, 32*bgs, 32);
  21         prgb* bufptr = (prgb*) o->data;
  22
  23         for(seq = 0; seq < bgs * sprites_per_pic; seq += sprites_per_pic) {
  24                 prgb* palette = palpic_getpalette(f);
  25
  26                 size_t i;
  27                 for(i = seq; i < seq + sprites_per_pic; i++) {
  28                         int x, y;
  29                         const uint8_t *source = palpic_getspritedata(f, i);
  30                         for(y = 0; y < palpic_getspriteheight(f); y++) {
  31                                 for(x = 0; x < palpic_getspritewidth(f); x++) {
  32                                         *bufptr++ = palette[*source++];
  33                                 }
  34                         }
  35                 }
  36         }
  37         pixWritePng("test.png", o, 0.0);
  38         pixDestroy(&o);
  39
  40         return 0;
  41 }