[libpng15] Added png_get_compression_buffer() API.
diff --git a/ANNOUNCE b/ANNOUNCE
index fd7253f..440df0e 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -72,6 +72,7 @@
Version 1.5.6beta06 [October 13, 2011]
Removed two redundant tests for unitialized row.
+ Added png_get_compression_buffer() API.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net:
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diff --git a/CHANGES b/CHANGES
index a0475ca..0faff1e 100644
--- a/CHANGES
+++ b/CHANGES
@@ -3633,6 +3633,7 @@
Version 1.5.6beta06 [October 13, 2011]
Removed two redundant tests for unitialized row.
+ Added png_get_compression_buffer() API.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit
diff --git a/libpng-manual.txt b/libpng-manual.txt
index 085f68a..fce0be1 100644
--- a/libpng-manual.txt
+++ b/libpng-manual.txt
@@ -1,6 +1,6 @@
libpng-manual.txt - A description on how to use and modify libpng
- libpng version 1.5.6beta06 - October 12, 2011
+ libpng version 1.5.6beta06 - October 13, 2011
Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net>
Copyright (c) 1998-2011 Glenn Randers-Pehrson
@@ -11,7 +11,7 @@
Based on:
- libpng versions 0.97, January 1998, through 1.5.6beta06 - October 12, 2011
+ libpng versions 0.97, January 1998, through 1.5.6beta06 - October 13, 2011
Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2011 Glenn Randers-Pehrson
@@ -3692,6 +3692,13 @@
png_set_text_compression_method(png_ptr, method);
#endif
+As of libpng version 1.5.6, an API became available for
+retrieving a pointer to the compression buffer:
+
+#if PNG_GET_COMPRESSION_BUFFER_SUPPORTED
+ png_bytep buffer = png_get_compression_buffer(png_ptr);
+#endif
+
Controlling row filtering
If you want to control whether libpng uses filtering or not, which
@@ -4563,7 +4570,7 @@
XIV. Y2K Compliance in libpng
-October 12, 2011
+October 13, 2011
Since the PNG Development group is an ad-hoc body, we can't make
an official declaration.
diff --git a/libpng.3 b/libpng.3
index 8827731..9e8da19 100644
--- a/libpng.3
+++ b/libpng.3
@@ -1,4 +1,4 @@
-.TH LIBPNG 3 "October 12, 2011"
+.TH LIBPNG 3 "October 13, 2011"
.SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.5.6beta06
.SH SYNOPSIS
@@ -154,6 +154,10 @@
\fI\fB
+\fBpng_bytep png_get_compression_buffer (png_const_structp \fIpng_ptr\fP\fB);\fP
+
+\fI\fB
+
\fBpng_uint_32 png_get_compression_buffer_size (png_const_structp \fIpng_ptr\fP\fB);\fP
\fI\fB
@@ -977,7 +981,7 @@
.SH LIBPNG.TXT
libpng-manual.txt - A description on how to use and modify libpng
- libpng version 1.5.6beta06 - October 12, 2011
+ libpng version 1.5.6beta06 - October 13, 2011
Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net>
Copyright (c) 1998-2011 Glenn Randers-Pehrson
@@ -988,7 +992,7 @@
Based on:
- libpng versions 0.97, January 1998, through 1.5.6beta06 - October 12, 2011
+ libpng versions 0.97, January 1998, through 1.5.6beta06 - October 13, 2011
Updated and distributed by Glenn Randers-Pehrson
Copyright (c) 1998-2011 Glenn Randers-Pehrson
@@ -4670,6 +4674,13 @@
png_set_text_compression_method(png_ptr, method);
#endif
+As of libpng version 1.5.6, an API became available for
+retrieving a pointer to the compression buffer:
+
+#if PNG_GET_COMPRESSION_BUFFER_SUPPORTED
+ png_bytep buffer = png_get_compression_buffer(png_ptr);
+#endif
+
.SS Controlling row filtering
If you want to control whether libpng uses filtering or not, which
@@ -5541,7 +5552,7 @@
.SH XIV. Y2K Compliance in libpng
-October 12, 2011
+October 13, 2011
Since the PNG Development group is an ad-hoc body, we can't make
an official declaration.
@@ -5803,7 +5814,7 @@
Thanks to Frank J. T. Wojcik for helping with the documentation.
-Libpng version 1.5.6beta06 - October 12, 2011:
+Libpng version 1.5.6beta06 - October 13, 2011:
Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
@@ -5826,7 +5837,7 @@
This code is released under the libpng license.
-libpng versions 1.2.6, August 15, 2004, through 1.5.6beta06, October 12, 2011, are
+libpng versions 1.2.6, August 15, 2004, through 1.5.6beta06, October 13, 2011, are
Copyright (c) 2004,2006-2007 Glenn Randers-Pehrson, and are
distributed according to the same disclaimer and license as libpng-1.2.5
with the following individual added to the list of Contributing Authors
@@ -5925,7 +5936,7 @@
Glenn Randers-Pehrson
glennrp at users.sourceforge.net
-October 12, 2011
+October 13, 2011
.\" end of man page
diff --git a/png.h b/png.h
index a81e7ab..fed4205 100644
--- a/png.h
+++ b/png.h
@@ -1,7 +1,7 @@
/* png.h - header file for PNG reference library
*
- * libpng version 1.5.6beta06 - October 12, 2011
+ * libpng version 1.5.6beta06 - October 13, 2011
* Copyright (c) 1998-2011 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.)
@@ -11,7 +11,7 @@
* Authors and maintainers:
* libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
* libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger
- * libpng versions 0.97, January 1998, through 1.5.6beta06 - October 12, 2011: Glenn
+ * libpng versions 0.97, January 1998, through 1.5.6beta06 - October 13, 2011: Glenn
* See also "Contributing Authors", below.
*
* Note about libpng version numbers:
@@ -192,7 +192,7 @@
*
* This code is released under the libpng license.
*
- * libpng versions 1.2.6, August 15, 2004, through 1.5.6beta06, October 12, 2011, are
+ * libpng versions 1.2.6, August 15, 2004, through 1.5.6beta06, October 13, 2011, are
* Copyright (c) 2004, 2006-2011 Glenn Randers-Pehrson, and are
* distributed according to the same disclaimer and license as libpng-1.2.5
* with the following individual added to the list of Contributing Authors:
@@ -304,7 +304,7 @@
* Y2K compliance in libpng:
* =========================
*
- * October 12, 2011
+ * October 13, 2011
*
* Since the PNG Development group is an ad-hoc body, we can't make
* an official declaration.
@@ -367,7 +367,7 @@
/* Version information for png.h - this should match the version in png.c */
#define PNG_LIBPNG_VER_STRING "1.5.6beta06"
#define PNG_HEADER_VERSION_STRING \
- " libpng version 1.5.6beta06 - October 12, 2011\n"
+ " libpng version 1.5.6beta06 - October 13, 2011\n"
#define PNG_LIBPNG_VER_SONUM 15
#define PNG_LIBPNG_VER_DLLNUM 15
@@ -995,6 +995,12 @@
PNG_EXPORT(7, void, png_set_compression_buffer_size, (png_structp png_ptr,
png_size_t size));
+#ifdef PNG_GET_COMPRESSION_BUFFER_SUPPORTED
+/* New in libpng-1.5.6 */
+PNG_EXPORT(234, png_bytep, png_get_compression_buffer, (png_const_structp
+ png_ptr));
+#endif
+
/* Moved from pngconf.h in 1.4.0 and modified to ensure setjmp/longjmp
* match up.
*/
@@ -2617,7 +2623,7 @@
* scripts/symbols.def as well.
*/
#ifdef PNG_EXPORT_LAST_ORDINAL
- PNG_EXPORT_LAST_ORDINAL(233);
+ PNG_EXPORT_LAST_ORDINAL(234);
#endif
#ifdef __cplusplus
diff --git a/pngget.c b/pngget.c
index 4330921..fa379c2 100644
--- a/pngget.c
+++ b/pngget.c
@@ -1068,6 +1068,15 @@
return (png_ptr ? png_ptr->zbuf_size : 0);
}
+#ifdef PNG_GET_COMPRESSION_BUFFER_SUPPORTED
+/* New in libpng-1.5.6 */
+png_bytep PNGAPI
+png_get_compression_buffer(png_const_structp png_ptr)
+{
+ return (png_ptr ? png_ptr->zbuf : 0);
+}
+#endif
+
#ifdef PNG_SET_USER_LIMITS_SUPPORTED
/* These functions were added to libpng 1.2.6 and were enabled
diff --git a/scripts/pnglibconf.dfa b/scripts/pnglibconf.dfa
index 07b7f69..311ab47 100644
--- a/scripts/pnglibconf.dfa
+++ b/scripts/pnglibconf.dfa
@@ -557,6 +557,9 @@
option WRITE_OPTIMIZE_CMF requires WRITE
+# Added at libpng-1.5.6
+option GET_COMPRESSION_BUFFER
+
option READ_COMPRESSED_TEXT disabled
option READ_iCCP enables READ_COMPRESSED_TEXT
option READ_iTXt enables READ_COMPRESSED_TEXT
diff --git a/scripts/pnglibconf.h.prebuilt b/scripts/pnglibconf.h.prebuilt
index 8022a5a..108f789 100644
--- a/scripts/pnglibconf.h.prebuilt
+++ b/scripts/pnglibconf.h.prebuilt
@@ -55,6 +55,7 @@
#define PNG_FLOATING_ARITHMETIC_SUPPORTED
#define PNG_FLOATING_POINT_SUPPORTED
#define PNG_gAMA_SUPPORTED
+#define PNG_GET_COMPRESSION_BUFFER_SUPPORTED
#define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
#define PNG_hIST_SUPPORTED
#define PNG_iCCP_SUPPORTED
diff --git a/scripts/symbols.def b/scripts/symbols.def
index fafffaf..5a7e23f 100644
--- a/scripts/symbols.def
+++ b/scripts/symbols.def
@@ -239,3 +239,4 @@
png_get_cHRM_XYZ_fixed @231
png_set_cHRM_XYZ @232
png_set_cHRM_XYZ_fixed @233
+ png_get_compression_buffer @234
