[libpng16] Updated CHANGES, ANNOUNCE, change date in pngrtran.c

ANNOUNCE

-Libpng 1.6.22beta02 - January 29, 2016
+Libpng 1.6.22beta02 - January 30, 2016
 
 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.
@@ -40,13 +40,19 @@ Version 1.6.22beta01 [January 23, 2016]
     less than 4GByte and image row size (stride) to less than 2GByte.
   Revised workaround for false-positive Coverity issue in pngvalid.c.
 
-Version 1.6.22beta02 [January 29, 2016]
+Version 1.6.22beta02 [January 30, 2016]
   Only use exit(77) in configure builds.
   Corrected error in PNG_IMAGE_PNG_SIZE_MAX. This new macro underreported
     the palette size because it failed to take into account that the memory
     palette has to be expanded to full RGB when it is written to PNG.
   Updated CMakeLists.txt, added supporting scripts/gen*.cmake.in
     and test.cmake.in (Roger Leigh).
+  Relaxed limit checks on gamma values in pngrtran.c. As suggested in
+    the comments gamma values outside the range currently permitted
+    by png_set_alpha_mode are useful for HDR data encoding.  These values
+    are already permitted by png_set_gamma so it is reasonable caution to
+    extend the png_set_alpha_mode range as HDR imaging systems are starting
+    to emerge.
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit

CHANGES

@@ -5499,13 +5499,19 @@ Version 1.6.22beta01 [January 23, 2016]
     less than 4GByte and image row size (stride) to less than 2GByte.
   Revised workaround for false-positive Coverity issue in pngvalid.c.
 
-Version 1.6.22beta02 [January 29, 2016]
+Version 1.6.22beta02 [January 30, 2016]
   Only use exit(77) in configure builds.
   Corrected error in PNG_IMAGE_PNG_SIZE_MAX. This new macro underreported
     the palette size because it failed to take into account that the memory
     palette has to be expanded to full RGB when it is written to PNG.
   Updated CMakeLists.txt, added supporting scripts/gen*.cmake.in
     and test.cmake.in (Roger Leigh).
+  Relaxed limit checks on gamma values in pngrtran.c. As suggested in
+    the comments gamma values outside the range currently permitted
+    by png_set_alpha_mode are useful for HDR data encoding.  These values
+    are already permitted by png_set_gamma so it is reasonable caution to
+    extend the png_set_alpha_mode range as HDR imaging systems are starting
+    to emerge.
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit

libpng-manual.txt

 libpng-manual.txt - A description on how to use and modify libpng
 
- libpng version 1.6.22beta02 - January 23, 2016
+ libpng version 1.6.22beta02 - January 30, 2016
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2016 Glenn Randers-Pehrson
@@ -11,7 +11,7 @@ libpng-manual.txt - A description on how to use and modify libpng
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.6.22beta02 - January 23, 2016
+ libpng versions 0.97, January 1998, through 1.6.22beta02 - January 30, 2016
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2016 Glenn Randers-Pehrson
 
@@ -4782,7 +4782,8 @@ There are no substantial API changes between the non-deprecated parts of
 the 1.4.5 API and the 1.5.0 API; however, the ability to directly access
 members of the main libpng control structures, png_struct and png_info,
 deprecated in earlier versions of libpng, has been completely removed from
-libpng 1.5.
+libpng 1.5, and new private "pngstruct.h", "pnginfo.h", and "pngdebug.h"
+header files were created.
 
 We no longer include zlib.h in png.h.  The include statement has been moved
 to pngstruct.h, where it is not accessible by applications. Applications that

libpng.3

-.TH LIBPNG 3 "January 23, 2016"
+.TH LIBPNG 3 "January 30, 2016"
 .SH NAME
 libpng \- Portable Network Graphics (PNG) Reference Library 1.6.22beta02
 .SH SYNOPSIS
@@ -510,7 +510,7 @@ Following is a copy of the libpng-manual.txt file that accompanies libpng.
 .SH LIBPNG.TXT
 libpng-manual.txt - A description on how to use and modify libpng
 
- libpng version 1.6.22beta02 - January 23, 2016
+ libpng version 1.6.22beta02 - January 30, 2016
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2016 Glenn Randers-Pehrson
@@ -521,7 +521,7 @@ libpng-manual.txt - A description on how to use and modify libpng
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.6.22beta02 - January 23, 2016
+ libpng versions 0.97, January 1998, through 1.6.22beta02 - January 30, 2016
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2016 Glenn Randers-Pehrson
 
@@ -5292,7 +5292,8 @@ There are no substantial API changes between the non-deprecated parts of
 the 1.4.5 API and the 1.5.0 API; however, the ability to directly access
 members of the main libpng control structures, png_struct and png_info,
 deprecated in earlier versions of libpng, has been completely removed from
-libpng 1.5.
+libpng 1.5, and new private "pngstruct.h", "pnginfo.h", and "pngdebug.h"
+header files were created.
 
 We no longer include zlib.h in png.h.  The include statement has been moved
 to pngstruct.h, where it is not accessible by applications. Applications that
@@ -6004,7 +6005,7 @@ possible without all of you.
 
 Thanks to Frank J. T. Wojcik for helping with the documentation.
 
-Libpng version 1.6.22beta02 - January 23, 2016:
+Libpng version 1.6.22beta02 - January 30, 2016:
 Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
 Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
 
@@ -6029,7 +6030,7 @@ this sentence.
 
 This code is released under the libpng license.
 
-libpng versions 1.0.7, July 1, 2000, through 1.6.22beta02, January 23, 2016, are
+libpng versions 1.0.7, July 1, 2000, through 1.6.22beta02, January 30, 2016, are
 Copyright (c) 2000-2002, 2004, 2006-2016 Glenn Randers-Pehrson, are
 derived from libpng-1.0.6, and are distributed according to the same
 disclaimer and license as libpng-1.0.6 with the following individuals
@@ -6128,7 +6129,7 @@ the additional disclaimers inserted at version 1.0.7.
 
 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-January 23, 2016
+January 30, 2016
 
 .\" end of man page
 

pngrtran.c

 
 /* pngrtran.c - transforms the data in a row for PNG readers
  *
- * Last changed in libpng 1.6.19 [November 12, 2015]
- * Copyright (c) 1998-2002,2004,2006-2015 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.22 [(PENDING RELEASE)]
+ * Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
  * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
  *