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[libpng16] Reverted the fix of byte order in png_do_read_filler() with 16-bit

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input that was made in version 1.6.17beta01, to preserve legacy
behavior even though it was incorrect.  Instead, added new API
png_set_filter_16() and png_set_add_alpha_16() that set a flag to
make png_do_read_filter() interpret the filler bytes properly.
This commit is contained in:
Glenn Randers-Pehrson
2015-09-23 22:08:04 -05:00
parent d6eb4b71ac
commit efe4e5d10d
13 changed files with 141 additions and 65 deletions
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@@ -5347,7 +5347,7 @@ Version 1.6.19beta02 [August 19, 2015]
in ANSI-C (unlike 0x80000000 in the signed case) the checking that
occurs later can catch them (John Bowler).
Version 1.6.19beta03 [September 20, 2015]
Version 1.6.19beta03 [September 24, 2015]
Fixed png_save_int_32 when int is not 2's complement (John Bowler).
Updated libpng16 with all the recent test changes from libpng17,
including changes to pngvalid.c to ensure that the original,
@@ -5366,6 +5366,11 @@ Version 1.6.19beta03 [September 20, 2015]
slightly different error limits this simplifies maintenance. The
makepngs.sh script has also been updated to more accurately reflect
current problems in libpng 1.7 (John Bowler).
Reverted the fix of byte order in png_do_read_filler() with 16-bit
input that was made in version 1.6.17beta01, to preserve legacy
behavior even though it was incorrect. Instead, added new API
png_set_filter_16() and png_set_add_alpha_16() that set a flag to
make png_do_read_filter() interpret the filler bytes properly.
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