79 		return (0);

    79 		return (0);

    80 	}

    80 	}

    81 

    81 

    82 	if (setjmp(png_jmpbuf(png))) {

    82 	if (setjmp(png_jmpbuf(png))) {

    83 		fclose(f);

    83 		fclose(f);

    84 		png_destroy_write_struct(&png, &pnginfo);

    85 		png_destroy_write_struct(&png, &pnginfo);

    85 		return (0);

    86 		return (0);

    86 	}

    87 	}

    87 

    88 

    88 	/* predat knihovne PNG ukazatel na soubor */

    89 	/* predat knihovne PNG ukazatel na soubor */

   104 	for (y = 0; y < img->height; y++, data += img->width * img->pixel_size)

   105 	for (y = 0; y < img->height; y++, data += img->width * img->pixel_size)

   105 		png_write_row(png, (png_byte *) data);

   106 		png_write_row(png, (png_byte *) data);

   106 

   107 

   107 	/* ukoncit soubor a uvolnit pomocne struktury */

   108 	/* ukoncit soubor a uvolnit pomocne struktury */

   108 	png_write_end(png, pnginfo);

   109 	png_write_end(png, pnginfo);

   109 	png_destroy_write_struct(&png, 0);

   111 	png_destroy_write_struct(&png, 0);

   110 

   112 

   111 	fclose(f);

   113 	fclose(f);

   112 

   114 

   113 	return (1);

   115 	return (1);