mewin/libpng
1
0
Fork 0
mirror of https://git.code.sf.net/p/libpng/code.git synced 2025-07-10 18:04:09 +02:00
Code Issues Projects Releases Wiki Activity

[libpng15] Multiple transform bug fixes plus a work-round for double gamma

Browse Source 
correction.
This commit is contained in:
John Bowler
2011-11-16 14:26:34 -06:00
committed by Glenn Randers-Pehrson
parent 36f5884359
commit 18c5cfafeb
5 changed files with 477 additions and 45 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
ANNOUNCE
View File

@@ -70,6 +70,14 @@ Version 1.5.7beta03 [November 16, 2011]
Added run-time detection of NEON support.
Added contrib/libtests; includes simplified API test and timing test and
a color conversion utility for rapid checking of failed 'pngstest' results.
Multiple transform bug fixes plus a work-round for double gamma correction.
libpng does not support more than one transform that requires linear data
at once - if this is tried typically the results is double gamma
correction. Since the simplified APIs can need rgb to gray combined with
a compose operation it is necessary to do one of these outside the main
libpng transform code. This check-in also contains fixes to various bugs
in the simplified APIs themselves and to some bugs in compose and rgb to
gray (on palette) itself.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net:
(subscription required; visit