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[libpng17] Clean up USER_LIMITS feature, removing members from png_struct

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when not required.
This commit is contained in:
John Bowler
2012-12-14 22:56:00 -06:00
committed by Glenn Randers-Pehrson
parent 240ac287eb
commit eac85878bf
7 changed files with 67 additions and 60 deletions
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17
pngstruct.h
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@@ -243,18 +243,21 @@ struct png_struct_def
#endif
#endif /* PNG_READ_SUPPORTED */
#ifdef PNG_USER_LIMITS_SUPPORTED
/* The limits only affect read from libpng 1.7 */
/* Total memory that a zTXt, sPLT, iTXt, iCCP, or unknown chunk
* can occupy when decompressed. 0 means unlimited.
#ifdef PNG_SET_USER_LIMITS_SUPPORTED
png_uint_32 user_width_max; /* Maximum width on read */
png_uint_32 user_height_max; /* Maximum height on read */
/* Total memory that a single zTXt, sPLT, iTXt, iCCP, or unknown chunk
* can occupy when decompressed. 0 means unlimited. This field is a counter
* - it is decremented as memory is allocated.
*/
png_alloc_size_t user_chunk_malloc_max;
#endif
#ifdef PNG_USER_LIMITS_SUPPORTED
/* limit on total *number* of sPLT, text and unknown chunks that can be
* stored. 0 means unlimited.
* stored. 0 means unlimited. This field is a counter - it is decremented
* as chunks are encountered.
*/
png_uint_32 user_chunk_cache_max;
png_uint_32 user_width_max;
png_uint_32 user_height_max;
#endif
/* The progressive reader gets passed data and calls application handling