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libpng-1.6.17/contrib/libtests/pngvalid.c  view on Meta::CPAN

   width &= 7;
   ++pass;
   for (x=0; x<8; ++x) for (y=0; y<8; ++y) if (adam7[y][x] == pass)
   {
      cols += tiles;
      if (x < width) ++cols;
      break; /* i.e. break the 'y', row, loop. */
   }

   return cols;
}

static void
perform_interlace_macro_validation(void)
{
   /* The macros to validate, first those that depend only on pass:
    *
    * PNG_PASS_START_ROW(pass)
    * PNG_PASS_START_COL(pass)
    * PNG_PASS_ROW_SHIFT(pass)
    * PNG_PASS_COL_SHIFT(pass)
    */
   int pass;

   for (pass=0; pass<7; ++pass)
   {
      png_uint_32 m, f, v;

      m = PNG_PASS_START_ROW(pass);
      f = png_pass_start_row(pass);
      if (m != f)
      {
         fprintf(stderr, "PNG_PASS_START_ROW(%d) = %u != %x\n", pass, m, f);
         exit(99);
      }

      m = PNG_PASS_START_COL(pass);
      f = png_pass_start_col(pass);
      if (m != f)
      {
         fprintf(stderr, "PNG_PASS_START_COL(%d) = %u != %x\n", pass, m, f);
         exit(99);
      }

      m = PNG_PASS_ROW_SHIFT(pass);
      f = png_pass_row_shift(pass);
      if (m != f)
      {
         fprintf(stderr, "PNG_PASS_ROW_SHIFT(%d) = %u != %x\n", pass, m, f);
         exit(99);
      }

      m = PNG_PASS_COL_SHIFT(pass);
      f = png_pass_col_shift(pass);
      if (m != f)
      {
         fprintf(stderr, "PNG_PASS_COL_SHIFT(%d) = %u != %x\n", pass, m, f);
         exit(99);
      }

      /* Macros that depend on the image or sub-image height too:
       *
       * PNG_PASS_ROWS(height, pass)
       * PNG_PASS_COLS(width, pass)
       * PNG_ROW_FROM_PASS_ROW(yIn, pass)
       * PNG_COL_FROM_PASS_COL(xIn, pass)
       * PNG_ROW_IN_INTERLACE_PASS(y, pass)
       * PNG_COL_IN_INTERLACE_PASS(x, pass)
       */
      for (v=0;;)
      {
         /* First the base 0 stuff: */
         m = PNG_ROW_FROM_PASS_ROW(v, pass);
         f = png_row_from_pass_row(v, pass);
         if (m != f)
         {
            fprintf(stderr, "PNG_ROW_FROM_PASS_ROW(%u, %d) = %u != %x\n",
               v, pass, m, f);
            exit(99);
         }

         m = PNG_COL_FROM_PASS_COL(v, pass);
         f = png_col_from_pass_col(v, pass);
         if (m != f)
         {
            fprintf(stderr, "PNG_COL_FROM_PASS_COL(%u, %d) = %u != %x\n",
               v, pass, m, f);
            exit(99);
         }

         m = PNG_ROW_IN_INTERLACE_PASS(v, pass);
         f = png_row_in_interlace_pass(v, pass);
         if (m != f)
         {
            fprintf(stderr, "PNG_ROW_IN_INTERLACE_PASS(%u, %d) = %u != %x\n",
               v, pass, m, f);
            exit(99);
         }

         m = PNG_COL_IN_INTERLACE_PASS(v, pass);
         f = png_col_in_interlace_pass(v, pass);
         if (m != f)
         {
            fprintf(stderr, "PNG_COL_IN_INTERLACE_PASS(%u, %d) = %u != %x\n",
               v, pass, m, f);
            exit(99);
         }

         /* Then the base 1 stuff: */
         ++v;
         m = PNG_PASS_ROWS(v, pass);
         f = png_pass_rows(v, pass);
         if (m != f)
         {
            fprintf(stderr, "PNG_PASS_ROWS(%u, %d) = %u != %x\n",
               v, pass, m, f);
            exit(99);
         }

         m = PNG_PASS_COLS(v, pass);
         f = png_pass_cols(v, pass);