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[libpng16] Changed ICC profile support to allow use of an external color

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management system (CMS). In practice it is not possible to obtain cHRM
information reliably using just the end-point tags because they do not exist
in the vast majority of profiles.  Instead it is necessary to run the endpoints
through the ICC colorimetric intent transform (as described in the v4
spec).  Since this is likely to be too much code inside libpng for too
little gain (it implies a fairly complete CMS implementation) the code
has been changed to allow an external CMS to be used.  This code is
temporarily disabled until a suitable set of test cases using one or more
external CMS implementations have been implemented.
This commit is contained in:
John Bowler
2012-10-25 19:30:02 -05:00
committed by Glenn Randers-Pehrson
parent e6b710cb3f
commit f8dfd123e2
14 changed files with 821 additions and 944 deletions
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3
scripts/pnglibconf.h.prebuilt
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@@ -3,7 +3,7 @@
/* pnglibconf.h - library build configuration */
/* Libpng 1.6.0beta31 - October 24, 2012 */
/* Libpng 1.6.0beta31 - October 26, 2012 */
/* Copyright (c) 1998-2012 Glenn Randers-Pehrson */
@@ -63,6 +63,7 @@
#define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
#define PNG_hIST_SUPPORTED
#define PNG_iCCP_SUPPORTED
/*#undef PNG_ICC_SUPPORTED*/
#define PNG_INCH_CONVERSIONS_SUPPORTED
#define PNG_INFO_IMAGE_SUPPORTED
#define PNG_IO_STATE_SUPPORTED