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[libpng16] Work around for duplicate row start calls; added warning messages.

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This turns on PNG_FLAG_DETECT_UNINITIALIZED to detect app code that
fails to call one of the 'start' routines (not enabled in libpng-1.5
because it is technically an API change, since it did normally work
before.)  It also makes duplicate calls to png_read_start_row (an
internal function called at the start of the image read) benign, as
they were before changes to use png_inflate_claim. Somehow webkit is
causing this to happen; this is probably a mis-feature in the zlib
changes so this commit is only a work-round.
This commit is contained in:
John Bowler
2012-03-18 14:39:41 -05:00
committed by Glenn Randers-Pehrson
parent f5dcba6b9b
commit 0c11b5f8e7
5 changed files with 78 additions and 9 deletions
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13
ANNOUNCE
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@@ -1,5 +1,5 @@
Libpng 1.6.0beta19 - March 17, 2012
Libpng 1.6.0beta19 - March 18, 2012
This is not intended to be a public release. It will be replaced
within a few weeks by a public version or by another test version.
@@ -318,7 +318,16 @@ Version 1.6.0beta18 [March 16, 2012]
read benign errors to warnings (regardless of the system default, unless
this is disabled in which case the simplified API can't be built.)
Version 1.6.0beta19 [March 17, 2012]
Version 1.6.0beta19 [March 18, 2012]
Work around for duplicate row start calls; added warning messages.
This turns on PNG_FLAG_DETECT_UNINITIALIZED to detect app code that
fails to call one of the 'start' routines (not enabled in libpng-1.5
because it is technically an API change, since it did normally work
before.) It also makes duplicate calls to png_read_start_row (an
internal function called at the start of the image read) benign, as
they were before changes to use png_inflate_claim. Somehow webkit is
causing this to happen; this is probably a mis-feature in the zlib
changes so this commit is only a work-round.
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