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[libpng16] Added tests for invalid palette index while reading and writing

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(work in progress, the latter isn't finished).
This commit is contained in:
Glenn Randers-Pehrson
2012-03-01 21:39:29 -06:00
parent cb129a6234
commit 363ae65e2b
7 changed files with 126 additions and 37 deletions
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7
pngwrite.c
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@@ -731,12 +731,15 @@ png_write_row(png_structrp png_ptr, png_const_bytep row)
}
#endif
#if 0 /* To do: implement png_do_check_palette_indexes() */
/* Added at libpng-1.5.10 */
#ifdef PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED
/* Check for out-of-range palette index */
#if 0 /* To do: implement png_do_check_palette_indexes() */
if (png_ptr->num_palette < (1 << png_ptr->bit_depth))
png_do_check_palette_indexes(&row_info, png_ptr->row_buf + 1,
png_ptr->num_palette_max);
if (png_ptr->num_palette_max > num_palette + 1)
#endif
if (png_ptr->num_palette_max > png_ptr->num_palette + 1)
png_warning(png_ptr, "Palette index exceeded num_palette");
#endif