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Lines Matching refs:do_filter

1201               png_ptr->do_filter = PNG_FILTER_NONE; break;
1204               png_ptr->do_filter = PNG_FILTER_SUB; break;
1206               png_ptr->do_filter = PNG_FILTER_UP; break;
1208               png_ptr->do_filter = PNG_FILTER_AVG; break;
1210               png_ptr->do_filter = PNG_FILTER_PAETH; break;
1211          default: png_ptr->do_filter = (png_byte)filters; break;
1229          if ((png_ptr->do_filter & PNG_FILTER_SUB) && png_ptr->sub_row == NULL)
1236          if ((png_ptr->do_filter & PNG_FILTER_UP) && png_ptr->up_row == NULL)
1241                png_ptr->do_filter &= ~PNG_FILTER_UP;
1251          if ((png_ptr->do_filter & PNG_FILTER_AVG) && png_ptr->avg_row == NULL)
1256                png_ptr->do_filter &= ~PNG_FILTER_AVG;
1266          if ((png_ptr->do_filter & PNG_FILTER_PAETH) &&
1272                png_ptr->do_filter &= (png_byte)(~PNG_FILTER_PAETH);
1282          if (png_ptr->do_filter == PNG_NO_FILTERS)
1284             png_ptr->do_filter = PNG_FILTER_NONE;