395     }

   395     }

   396 

   396 

   397 

   397 

   398     // move from .tmp to .cache

   398     // move from .tmp to .cache

   399     if ((err = pt_cache_create_done(cache)))

   399     if ((err = pt_cache_create_done(cache)))

   400         return err;

   401         return err;

   401 

   402 

   402     // done!

   403     // done!

   403     return 0;

   404     return 0;

   404 }

   405 }

   494 

   495 

   495 int pt_cache_tile_png (struct pt_cache *cache, png_structp png, png_infop info, const struct pt_tile_info *ti)

   496 int pt_cache_tile_png (struct pt_cache *cache, png_structp png, png_infop info, const struct pt_tile_info *ti)

   496 {

   497 {

   497     int err;

   498     int err;

   498 

   499 

   499     // check within bounds

   504     // check within bounds

   500     if (ti->x >= cache->header->width || ti->y >= cache->header->height)

   505     if (ti->x >= cache->header->width || ti->y >= cache->header->height)

   501         // completely outside

   506         // completely outside

   502         RETURN_ERROR(PT_ERR_TILE_CLIP);

   507         RETURN_ERROR(PT_ERR_TILE_CLIP);

   503 

   508 

   508     // set basic info

   509     // set basic info

   509     png_set_IHDR(png, info, ti->width, ti->height, cache->header->bit_depth, cache->header->color_type,

   510     png_set_IHDR(png, info, ti->width, ti->height, cache->header->bit_depth, cache->header->color_type,

   510             PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT

   511             PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT

   511     );

   512     );

   512 

   513