[Update] libpng version 1.6.37
* Merge libpng version 1.6.37: commit 'a40189cf881e9f0db80511c382292a5604c3c3d1'
* Suppress warning when comparing between signed and unsigned values
* Remove unneeded files
* Add arm source file in BUILD.gn
* Tested png, user report 89106481223
Fixed: 87754
Change-Id: Icc5d5754388356c6244770178facd03a36bfb1b4
diff --git a/ANNOUNCE b/ANNOUNCE
deleted file mode 100644
index ecf9c70..0000000
--- a/ANNOUNCE
+++ /dev/null
@@ -1,47 +0,0 @@
-libpng 1.6.37 - April 14, 2019
-==============================
-
-This is a public release of libpng, intended for use in production code.
-
-
-Files available for download
-----------------------------
-
-Source files with LF line endings (for Unix/Linux):
-
- * libpng-1.6.37.tar.xz (LZMA-compressed, recommended)
- * libpng-1.6.37.tar.gz
-
-Source files with CRLF line endings (for Windows):
-
- * lp1637.7z (LZMA-compressed, recommended)
- * lp1637.zip
-
-Other information:
-
- * README.md
- * LICENSE.md
- * AUTHORS.md
- * TRADEMARK.md
-
-
-Changes since the previous public release (version 1.6.36)
-----------------------------------------------------------
-
- * Fixed a use-after-free vulnerability (CVE-2019-7317) in png_image_free.
- * Fixed a memory leak in the ARM NEON implementation of png_do_expand_palette.
- * Fixed a memory leak in pngtest.c.
- * Fixed two vulnerabilities (CVE-2018-14048, CVE-2018-14550) in
- contrib/pngminus; refactor.
- * Changed the license of contrib/pngminus to MIT; refresh makefile and docs.
- (Contributed by Willem van Schaik)
- * Fixed a typo in the libpng license v2.
- (Contributed by Miguel Ojeda)
- * Added makefiles for AddressSanitizer-enabled builds.
- * Cleaned up various makefiles.
-
-
-Send comments/corrections/commendations to png-mng-implement at lists.sf.net.
-Subscription is required; visit
-https://lists.sourceforge.net/lists/listinfo/png-mng-implement
-to subscribe.
diff --git a/BUILD.gn b/BUILD.gn
new file mode 100644
index 0000000..ea5683a
--- /dev/null
+++ b/BUILD.gn
@@ -0,0 +1,90 @@
+# Copyright 2016 The Fuchsia Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//build/config/arm.gni")
+
+config("libpng_config") {
+ include_dirs = [ "." ]
+ defines = []
+}
+
+# Must be in a config because of how GN orders flags (otherwise -Wall will
+# appear after this, and turn it back on).
+config("clang_warnings") {
+ if (is_clang) {
+ cflags = [
+ "-Wno-conversion",
+ "-Wno-implicit-fallthrough",
+ "-Wno-sign-compare",
+
+ # libpng checks that the width is not greater than PNG_SIZE_MAX.
+ # On platforms where size_t is 64-bits, this comparison will always
+ # be false.
+ "-Wno-tautological-constant-out-of-range-compare",
+
+ "-Wno-unused-but-set-parameter",
+ "-Wno-unused-but-set-variable",
+ ]
+ }
+}
+
+source_set("libpng") {
+ sources = [
+ "png.c",
+ "png.h",
+ "pngconf.h",
+ "pngerror.c",
+ "pngget.c",
+ "pnginfo.h",
+ "pnglibconf.h",
+ "pngmem.c",
+ "pngpread.c",
+ "pngprefix.h",
+ "pngpriv.h",
+ "pngread.c",
+ "pngrio.c",
+ "pngrtran.c",
+ "pngrutil.c",
+ "pngset.c",
+ "pngstruct.h",
+ "pngtrans.c",
+ "pngwio.c",
+ "pngwrite.c",
+ "pngwtran.c",
+ "pngwutil.c",
+ ]
+ defines = []
+ cflags = []
+ if (current_cpu == "x86" || current_cpu == "x64") {
+ sources += [
+ "contrib/intel/filter_sse2_intrinsics.c",
+ "contrib/intel/intel_init.c",
+ ]
+ defines += [ "PNG_INTEL_SSE_OPT=1" ]
+ } else if ((current_cpu == "arm" || current_cpu == "arm64") && arm_use_neon) {
+ sources += [
+ "arm/arm_init.c",
+ "arm/filter_neon_intrinsics.c",
+ "arm/palette_neon_intrinsics.c",
+ ]
+ defines += [
+ "PNG_ARM_NEON_OPT=2",
+ "PNG_ARM_NEON_IMPLEMENTATION=1",
+ ]
+ }
+
+ public_configs = [ ":libpng_config" ]
+ public_deps = [ "//third_party/zlib" ]
+ configs += [ ":clang_warnings" ]
+
+ # TODO(fxbug.dev/77808): pull new code for libpng before we allow it to be
+ # used in more places.
+ visibility = [
+ "//src/camera/bin/factory/*",
+ "//src/ui/tools/gltf_export/*",
+ "//src/ui/examples/frame-compression/*",
+ "//src/developer/forensics/feedback_data/*",
+ "//third_party/freetype2/*",
+ ]
+}
diff --git a/CHANGES b/CHANGES
deleted file mode 100644
index f0b0a93..0000000
--- a/CHANGES
+++ /dev/null
@@ -1,6109 +0,0 @@
-CHANGES - changes for libpng
-
-version 0.1 [March 29, 1995]
- initial work-in-progress release
-
-version 0.2 [April 1, 1995]
- added reader into png.h
- fixed small problems in stub file
-
-version 0.3 [April 8, 1995]
- added pull reader
- split up pngwrite.c to several files
- added pnglib.txt
- added example.c
- cleaned up writer, adding a few new transformations
- fixed some bugs in writer
- interfaced with zlib 0.5
- added K&R support
- added check for 64 KB blocks for 16 bit machines
-
-version 0.4 [April 26, 1995]
- cleaned up code and commented code
- simplified time handling into png_time
- created png_color_16 and png_color_8 to handle color needs
- cleaned up color type defines
- fixed various bugs
- made various names more consistent
- interfaced with zlib 0.71
- cleaned up zTXt reader and writer (using zlib's Reset functions)
- split transformations into pngrtran.c and pngwtran.c
-
-version 0.5 [April 30, 1995]
- interfaced with zlib 0.8
- fixed many reading and writing bugs
- saved using 3 spaces instead of tabs
-
-version 0.6 [May 1, 1995]
- first beta release
- added png_large_malloc() and png_large_free()
- added png_size_t
- cleaned up some compiler warnings
- added png_start_read_image()
-
-version 0.7 [June 24, 1995]
- cleaned up lots of bugs
- finished dithering and other stuff
- added test program
- changed name from pnglib to libpng
-
-version 0.71 [June 26, 1995]
- changed pngtest.png for zlib 0.93
- fixed error in libpng.txt and example.c
-
-version 0.8 [August 20, 1995]
- cleaned up some bugs
- added png_set_filler()
- split up pngstub.c into pngmem.c, pngio.c, and pngerror.c
- added #define's to remove unwanted code
- moved png_info_init() to png.c
- added old_size into png_realloc()
- added functions to manually set filtering and compression info
- changed compression parameters based on image type
- optimized filter selection code
- added version info
- changed external functions passing floats to doubles (k&r problems?)
- put all the configurable stuff in pngconf.h
- enabled png_set_shift to work with paletted images on read
- added png_read_update_info() - updates info structure with transformations
-
-Version 0.81 [August, 1995]
- incorporated Tim Wegner's medium model code (thanks, Tim)
-
-Version 0.82 [September, 1995]
- [unspecified changes]
-
-Version 0.85 [December, 1995]
- added more medium model code (almost everything's a far)
- added i/o, error, and memory callback functions
- fixed some bugs (16-bit, 4-bit interlaced, etc.)
- added first run progressive reader (barely tested)
-
-Version 0.86 [January, 1996]
- fixed bugs
- improved documentation
-
-Version 0.87 [January, 1996]
- fixed medium model bugs
- fixed other bugs introduced in 0.85 and 0.86
- added some minor documentation
-
-Version 0.88 [January, 1996]
- fixed progressive bugs
- replaced tabs with spaces
- cleaned up documentation
- added callbacks for read/write and warning/error functions
-
-Version 0.89 [June 5, 1996]
- Added new initialization API to make libpng work better with shared libs
- we now have png_create_read_struct(), png_create_write_struct(),
- png_create_info_struct(), png_destroy_read_struct(), and
- png_destroy_write_struct() instead of the separate calls to
- malloc and png_read_init(), png_info_init(), and png_write_init()
- Changed warning/error callback functions to fix bug - this means you
- should use the new initialization API if you were using the old
- png_set_message_fn() calls, and that the old API no longer exists
- so that people are aware that they need to change their code
- Changed filter selection API to allow selection of multiple filters
- since it didn't work in previous versions of libpng anyways
- Optimized filter selection code
- Fixed png_set_background() to allow using an arbitrary RGB color for
- paletted images
- Fixed gamma and background correction for paletted images, so
- png_correct_palette is not needed unless you are correcting an
- external palette (you will need to #define PNG_CORRECT_PALETTE_SUPPORTED
- in pngconf.h) - if nobody uses this, it may disappear in the future.
- Fixed bug with Borland 64K memory allocation (Alexander Lehmann)
- Fixed bug in interlace handling (Smarasderagd, I think)
- Added more error checking for writing and image to reduce invalid files
- Separated read and write functions so that they won't both be linked
- into a binary when only reading or writing functionality is used
- New pngtest image also has interlacing and zTXt
- Updated documentation to reflect new API
-
-Version 0.89c [June 17, 1996]
- Bug fixes.
-
-Version 0.90 [January, 1997]
- Made CRC errors/warnings on critical and ancillary chunks configurable
- libpng will use the zlib CRC routines by (compile-time) default
- Changed DOS small/medium model memory support - needs zlib 1.04 (Tim Wegner)
- Added external C++ wrapper statements to png.h (Gilles Dauphin)
- Allow PNG file to be read when some or all of file signature has already
- been read from the beginning of the stream. ****This affects the size
- of info_struct and invalidates all programs that use a shared libpng****
- Fixed png_filler() declarations
- Fixed? background color conversions
- Fixed order of error function pointers to match documentation
- Current chunk name is now available in png_struct to reduce the number
- of nearly identical error messages (will simplify multi-lingual
- support when available)
- Try to get ready for unknown-chunk callback functions:
- - previously read critical chunks are flagged, so the chunk handling
- routines can determine if the chunk is in the right place
- - all chunk handling routines have the same prototypes, so we will
- be able to handle all chunks via a callback mechanism
- Try to fix Linux "setjmp" buffer size problems
- Removed png_large_malloc, png_large_free, and png_realloc functions.
-
-Version 0.95 [March, 1997]
- Fixed bug in pngwutil.c allocating "up_row" twice and "avg_row" never
- Fixed bug in PNG file signature compares when start != 0
- Changed parameter type of png_set_filler(...filler...) from png_byte
- to png_uint_32
- Added test for MACOS to ensure that both math.h and fp.h are not #included
- Added macros for libpng to be compiled as a Windows DLL (Andreas Kupries)
- Added "packswap" transformation, which changes the endianness of
- packed-pixel bytes (Kevin Bracey)
- Added "strip_alpha" transformation, which removes the alpha channel of
- input images without using it (not necessarily a good idea)
- Added "swap_alpha" transformation, which puts the alpha channel in front
- of the color bytes instead of after
- Removed all implicit variable tests which assume NULL == 0 (I think)
- Changed several variables to "png_size_t" to show 16/32-bit limitations
- Added new pCAL chunk read/write support
- Added experimental filter selection weighting (Greg Roelofs)
- Removed old png_set_rgbx() and png_set_xrgb() functions that have been
- obsolete for about 2 years now (use png_set_filler() instead)
- Added macros to read 16- and 32-bit ints directly from buffer, to be
- used only on those systems that support it (namely PowerPC and 680x0)
- With some testing, this may become the default for MACOS/PPC systems.
- Only calculate CRC on data if we are going to use it
- Added macros for zTXt compression type PNG_zTXt_COMPRESSION_???
- Added macros for simple libpng debugging output selectable at compile time
- Removed PNG_READ_END_MODE in progressive reader (Smarasderagd)
- More description of info_struct in libpng.txt and png.h
- More instructions in example.c
- More chunk types tested in pngtest.c
- Renamed pngrcb.c to pngset.c, and all png_read_<chunk> functions to be
- png_set_<chunk>. We now have corresponding png_get_<chunk>
- functions in pngget.c to get information in info_ptr. This isolates
- the application from the internal organization of png_info_struct
- (good for shared library implementations).
-
-Version 0.96 [May, 1997]
- Fixed serious bug with < 8bpp images introduced in 0.95
- Fixed 256-color transparency bug (Greg Roelofs)
- Fixed up documentation (Greg Roelofs, Laszlo Nyul)
- Fixed "error" in pngconf.h for Linux setjmp() behavior
- Fixed DOS medium model support (Tim Wegner)
- Fixed png_check_keyword() for case with error in static string text
- Added read of CRC after IEND chunk for embedded PNGs (Laszlo Nyul)
- Added typecasts to quiet compiler errors
- Added more debugging info
-
-Version 0.97 [January, 1998]
- Removed PNG_USE_OWN_CRC capability
- Relocated png_set_crc_action from pngrutil.c to pngrtran.c
- Fixed typecasts of "new_key", etc. (Andreas Dilger)
- Added RFC 1152 [sic] date support
- Fixed bug in gamma handling of 4-bit grayscale
- Added 2-bit grayscale gamma handling (Glenn R-P)
- Added more typecasts. 65536L becomes (png_uint_32)65536L, etc. (Glenn R-P)
- Minor corrections in libpng.txt
- Added simple sRGB support (Glenn R-P)
- Easier conditional compiling, e.g.,
- define PNG_READ/WRITE_NOT_FULLY_SUPPORTED;
- all configurable options can be selected from command-line instead
- of having to edit pngconf.h (Glenn R-P)
- Fixed memory leak in pngwrite.c (free info_ptr->text) (Glenn R-P)
- Added more conditions for png_do_background, to avoid changing
- black pixels to background when a background is supplied and
- no pixels are transparent
- Repaired PNG_NO_STDIO behavior
- Tested NODIV support and made it default behavior (Greg Roelofs)
- Added "-m" option and PNGTEST_DEBUG_MEMORY to pngtest (John Bowler)
- Regularized version numbering scheme and bumped shared-library major
- version number to 2 to avoid problems with libpng 0.89 apps
- (Greg Roelofs)
-
-Version 0.98 [January, 1998]
- Cleaned up some typos in libpng.txt and in code documentation
- Fixed memory leaks in pCAL chunk processing (Glenn R-P and John Bowler)
- Cosmetic change "display_gamma" to "screen_gamma" in pngrtran.c
- Changed recommendation about file_gamma for PC images to .51 from .45,
- in example.c and libpng.txt, added comments to distinguish between
- screen_gamma, viewing_gamma, and display_gamma.
- Changed all references to RFC1152 to read RFC1123 and changed the
- PNG_TIME_RFC1152_SUPPORTED macro to PNG_TIME_RFC1123_SUPPORTED
- Added png_invert_alpha capability (Glenn R-P -- suggestion by Jon Vincent)
- Changed srgb_intent from png_byte to int to avoid compiler bugs
-
-Version 0.99 [January 30, 1998]
- Free info_ptr->text instead of end_info_ptr->text in pngread.c (John Bowler)
- Fixed a longstanding "packswap" bug in pngtrans.c
- Fixed some inconsistencies in pngconf.h that prevented compiling with
- PNG_READ_GAMMA_SUPPORTED and PNG_READ_hIST_SUPPORTED undefined
- Fixed some typos and made other minor rearrangement of libpng.txt (Andreas)
- Changed recommendation about file_gamma for PC images to .50 from .51 in
- example.c and libpng.txt, and changed file_gamma for sRGB images to .45
- Added a number of functions to access information from the png structure
- png_get_image_height(), etc. (Glenn R-P, suggestion by Brad Pettit)
- Added TARGET_MACOS similar to zlib-1.0.8
- Define PNG_ALWAYS_EXTERN when __MWERKS__ && WIN32 are defined
- Added type casting to all png_malloc() function calls
-
-Version 0.99a [January 31, 1998]
- Added type casts and parentheses to all returns that return a value.(Tim W.)
-
-Version 0.99b [February 4, 1998]
- Added type cast png_uint_32 on malloc function calls where needed.
- Changed type of num_hist from png_uint_32 to int (same as num_palette).
- Added checks for rowbytes overflow, in case png_size_t is less than 32 bits.
- Renamed makefile.elf to makefile.lnx.
-
-Version 0.99c [February 7, 1998]
- More type casting. Removed erroneous overflow test in pngmem.c.
- Added png_buffered_memcpy() and png_buffered_memset(), apply them to rowbytes.
- Added UNIX manual pages libpng.3 (incorporating libpng.txt) and png.5.
-
-Version 0.99d [February 11, 1998]
- Renamed "far_to_near()" "png_far_to_near()"
- Revised libpng.3
- Version 99c "buffered" operations didn't work as intended. Replaced them
- with png_memcpy_check() and png_memset_check().
- Added many "if (png_ptr == NULL) return" to quell compiler warnings about
- unused png_ptr, mostly in pngget.c and pngset.c.
- Check for overlength tRNS chunk present when indexed-color PLTE is read.
- Cleaned up spelling errors in libpng.3/libpng.txt
- Corrected a problem with png_get_tRNS() which returned undefined trans array
-
-Version 0.99e [February 28, 1998]
- Corrected png_get_tRNS() again.
- Add parentheses for easier reading of pngget.c, fixed "||" should be "&&".
- Touched up example.c to make more of it compileable, although the entire
- file still can't be compiled (Willem van Schaik)
- Fixed a bug in png_do_shift() (Bryan Tsai)
- Added a space in png.h prototype for png_write_chunk_start()
- Replaced pngtest.png with one created with zlib 1.1.1
- Changed pngtest to report PASS even when file size is different (Jean-loup G.)
- Corrected some logic errors in png_do_invert_alpha() (Chris Patterson)
-
-Version 0.99f [March 5, 1998]
- Corrected a bug in pngpread() introduced in version 99c (Kevin Bracey)
- Moved makefiles into a "scripts" directory, and added INSTALL instruction file
- Added makefile.os2 and pngos2.def (A. Zabolotny) and makefile.s2x (W. Sebok)
- Added pointers to "note on libpng versions" in makefile.lnx and README
- Added row callback feature when reading and writing nonprogressive rows
- and added a test of this feature in pngtest.c
- Added user transform callbacks, with test of the feature in pngtest.c
-
-Version 0.99g [March 6, 1998, morning]
- Minor changes to pngtest.c to suppress compiler warnings.
- Removed "beta" language from documentation.
-
-Version 0.99h [March 6, 1998, evening]
- Minor changes to previous minor changes to pngtest.c
- Changed PNG_READ_NOT_FULLY_SUPPORTED to PNG_READ_TRANSFORMS_NOT_SUPPORTED
- and added PNG_PROGRESSIVE_READ_NOT_SUPPORTED macro
- Added user transform capability
-
-Version 1.00 [March 7, 1998]
- Changed several typedefs in pngrutil.c
- Added makefile.wat (Pawel Mrochen), updated makefile.tc3 (Willem van Schaik)
- Replaced "while(1)" with "for(;;)"
- Added PNGARG() to prototypes in pngtest.c and removed some prototypes
- Updated some of the makefiles (Tom Lane)
- Changed some typedefs (s_start, etc.) in pngrutil.c
- Fixed dimensions of "short_months" array in pngwrite.c
- Replaced ansi2knr.c with the one from jpeg-v6
-
-Version 1.0.0 [March 8, 1998]
- Changed name from 1.00 to 1.0.0 (Adam Costello)
- Added smakefile.ppc (with SCOPTIONS.ppc) for Amiga PPC (Andreas Kleinert)
-
-Version 1.0.0a [March 9, 1998]
- Fixed three bugs in pngrtran.c to make gamma+background handling consistent
- (Greg Roelofs)
- Changed format of the PNG_LIBPNG_VER integer to xyyzz instead of xyz
- for major, minor, and bugfix releases. This is 10001. (Adam Costello,
- Tom Lane)
- Make months range from 1-12 in png_convert_to_rfc1123
-
-Version 1.0.0b [March 13, 1998]
- Quieted compiler complaints about two empty "for" loops in pngrutil.c
- Minor changes to makefile.s2x
- Removed #ifdef/#endif around a png_free() in pngread.c
-
-Version 1.0.1 [March 14, 1998]
- Changed makefile.s2x to reduce security risk of using a relative pathname
- Fixed some typos in the documentation (Greg).
- Fixed a problem with value of "channels" returned by png_read_update_info()
-
-Version 1.0.1a [April 21, 1998]
- Optimized Paeth calculations by replacing abs() function calls with intrinsics
- plus other loop optimizations. Improves avg decoding speed by about 20%.
- Commented out i386istic "align" compiler flags in makefile.lnx.
- Reduced the default warning level in some makefiles, to make them consistent.
- Removed references to IJG and JPEG in the ansi2knr.c copyright statement.
- Fixed a bug in png_do_strip_filler with XXRRGGBB => RRGGBB transformation.
- Added grayscale and 16-bit capability to png_do_read_filler().
- Fixed a bug in pngset.c, introduced in version 0.99c, that sets rowbytes
- too large when writing an image with bit_depth < 8 (Bob Dellaca).
- Corrected some bugs in the experimental weighted filtering heuristics.
- Moved a misplaced pngrutil code block that truncates tRNS if it has more
- than num_palette entries -- test was done before num_palette was defined.
- Fixed a png_convert_to_rfc1123() bug that converts day 31 to 0 (Steve Eddins).
- Changed compiler flags in makefile.wat for better optimization
- (Pawel Mrochen).
-
-Version 1.0.1b [May 2, 1998]
- Relocated png_do_gray_to_rgb() within png_do_read_transformations() (Greg).
- Relocated the png_composite macros from pngrtran.c to png.h (Greg).
- Added makefile.sco (contributed by Mike Hopkirk).
- Fixed two bugs (missing definitions of "istop") introduced in libpng-1.0.1a.
- Fixed a bug in pngrtran.c that would set channels=5 under some circumstances.
- More work on the Paeth-filtering, achieving imperceptible speedup
- (A Kleinert).
- More work on loop optimization which may help when compiled with C++
- compilers.
- Added warnings when people try to use transforms they've defined out.
- Collapsed 4 "i" and "c" loops into single "i" loops in pngrtran and pngwtran.
- Revised paragraph about png_set_expand() in libpng.txt and libpng.3 (Greg)
-
-Version 1.0.1c [May 11, 1998]
- Fixed a bug in pngrtran.c (introduced in libpng-1.0.1a) where the masks for
- filler bytes should have been 0xff instead of 0xf.
- Added max_pixel_depth=32 in pngrutil.c when using FILLER with palette images.
- Moved PNG_WRITE_WEIGHTED_FILTER_SUPPORTED and PNG_WRITE_FLUSH_SUPPORTED
- out of the PNG_WRITE_TRANSFORMS_NOT_SUPPORTED block of pngconf.h
- Added "PNG_NO_WRITE_TRANSFORMS" etc., as alternatives for *_NOT_SUPPORTED,
- for consistency, in pngconf.h
- Added individual "ifndef PNG_NO_[CAPABILITY]" in pngconf.h to make it easier
- to remove unwanted capabilities via the compile line
- Made some corrections to grammar (which, it's) in documentation (Greg).
- Corrected example.c, use of row_pointers in png_write_image().
-
-Version 1.0.1d [May 24, 1998]
- Corrected several statements that used side effects illegally in pngrutil.c
- and pngtrans.c, that were introduced in version 1.0.1b
- Revised png_read_rows() to avoid repeated if-testing for NULL (A Kleinert)
- More corrections to example.c, use of row_pointers in png_write_image()
- and png_read_rows().
- Added pngdll.mak and pngdef.pas to scripts directory, contributed by
- Bob Dellaca, to make a png32bd.dll with Borland C++ 4.5
- Fixed error in example.c with png_set_text: num_text is 3, not 2 (Guido V.)
- Changed several loops from count-down to count-up, for consistency.
-
-Version 1.0.1e [June 6, 1998]
- Revised libpng.txt and libpng.3 description of png_set_read|write_fn(), and
- added warnings when people try to set png_read_fn and png_write_fn in
- the same structure.
- Added a test such that png_do_gamma will be done when num_trans==0
- for truecolor images that have defined a background. This corrects an
- error that was introduced in libpng-0.90 that can cause gamma processing
- to be skipped.
- Added tests in png.h to include "trans" and "trans_values" in structures
- when PNG_READ_BACKGROUND_SUPPORTED or PNG_READ_EXPAND_SUPPORTED is defined.
- Add png_free(png_ptr->time_buffer) in png_destroy_read_struct()
- Moved png_convert_to_rfc_1123() from pngwrite.c to png.c
- Added capability for user-provided malloc_fn() and free_fn() functions,
- and revised pngtest.c to demonstrate their use, replacing the
- PNGTEST_DEBUG_MEM feature.
- Added makefile.w32, for Microsoft C++ 4.0 and later (Tim Wegner).
-
-Version 1.0.2 [June 14, 1998]
- Fixed two bugs in makefile.bor .
-
-Version 1.0.2a [December 30, 1998]
- Replaced and extended code that was removed from png_set_filler() in 1.0.1a.
- Fixed a bug in png_do_filler() that made it fail to write filler bytes in
- the left-most pixel of each row (Kevin Bracey).
- Changed "static pngcharp tIME_string" to "static char tIME_string[30]"
- in pngtest.c (Duncan Simpson).
- Fixed a bug in pngtest.c that caused pngtest to try to write a tIME chunk
- even when no tIME chunk was present in the source file.
- Fixed a problem in pngrutil.c: gray_to_rgb didn't always work with 16-bit.
- Fixed a problem in png_read_push_finish_row(), which would not skip some
- passes that it should skip, for images that are less than 3 pixels high.
- Interchanged the order of calls to png_do_swap() and png_do_shift()
- in pngwtran.c (John Cromer).
- Added #ifdef PNG_DEBUG/#endif surrounding use of PNG_DEBUG in png.h .
- Changed "bad adaptive filter type" from error to warning in pngrutil.c .
- Fixed a documentation error about default filtering with 8-bit indexed-color.
- Separated the PNG_NO_STDIO macro into PNG_NO_STDIO and PNG_NO_CONSOLE_IO
- (L. Peter Deutsch).
- Added png_set_rgb_to_gray() and png_get_rgb_to_gray_status() functions.
- Added png_get_copyright() and png_get_header_version() functions.
- Revised comments on png_set_progressive_read_fn() in libpng.txt and example.c
- Added information about debugging in libpng.txt and libpng.3 .
- Changed "ln -sf" to "ln -s -f" in makefile.s2x, makefile.lnx, and
- makefile.sco.
- Removed lines after Dynamic Dependencies" in makefile.aco .
- Revised makefile.dec to make a shared library (Jeremie Petit).
- Removed trailing blanks from all files.
-
-Version 1.0.2a [January 6, 1999]
- Removed misplaced #endif and #ifdef PNG_NO_EXTERN near the end of png.h
- Added "if" tests to silence complaints about unused png_ptr in png.h and png.c
- Changed "check_if_png" function in example.c to return true (nonzero) if PNG.
- Changed libpng.txt to demonstrate png_sig_cmp() instead of png_check_sig()
- which is obsolete.
-
-Version 1.0.3 [January 14, 1999]
- Added makefile.hux, for Hewlett Packard HPUX 10.20 and 11.00 (Jim Rice)
- Added a statement of Y2K compliance in png.h, libpng.3, and Y2KINFO.
-
-Version 1.0.3a [August 12, 1999]
- Added check for PNG_READ_INTERLACE_SUPPORTED in pngread.c; issue a warning
- if an attempt is made to read an interlaced image when it's not supported.
- Added check if png_ptr->trans is defined before freeing it in pngread.c
- Modified the Y2K statement to include versions back to version 0.71
- Fixed a bug in the check for valid IHDR bit_depth/color_types in pngrutil.c
- Modified makefile.wat (added -zp8 flag, ".symbolic", changed some comments)
- Replaced leading blanks with tab characters in makefile.hux
- Changed "dworkin.wustl.edu" to "ccrc.wustl.edu" in various documents.
- Changed (float)red and (float)green to (double)red, (double)green
- in png_set_rgb_to_gray() to avoid "promotion" problems in AIX.
- Fixed a bug in pngconf.h that omitted <stdio.h> when PNG_DEBUG==0 (K Bracey).
- Reformatted libpng.3 and libpngpf.3 with proper fonts (script by J. vanZandt).
- Updated documentation to refer to the PNG-1.2 specification.
- Removed ansi2knr.c and left pointers to the latest source for ansi2knr.c
- in makefile.knr, INSTALL, and README (L. Peter Deutsch)
- Fixed bugs in calculation of the length of rowbytes when adding alpha
- channels to 16-bit images, in pngrtran.c (Chris Nokleberg)
- Added function png_set_user_transform_info() to store user_transform_ptr,
- user_depth, and user_channels into the png_struct, and a function
- png_get_user_transform_ptr() to retrieve the pointer (Chris Nokleberg)
- Added function png_set_empty_plte_permitted() to make libpng useable
- in MNG applications.
- Corrected the typedef for png_free_ptr in png.h (Jesse Jones).
- Correct gamma with srgb is 45455 instead of 45000 in pngrutil.c, to be
- consistent with PNG-1.2, and allow variance of 500 before complaining.
- Added assembler code contributed by Intel in file pngvcrd.c and modified
- makefile.w32 to use it (Nirav Chhatrapati, INTEL Corporation,
- Gilles Vollant)
- Changed "ln -s -f" to "ln -f -s" in the makefiles to make Solaris happy.
- Added some aliases for png_set_expand() in pngrtran.c, namely
- png_set_expand_PLTE(), png_set_expand_depth(), and png_set_expand_tRNS()
- (Greg Roelofs, in "PNG: The Definitive Guide").
- Added makefile.beo for BEOS on X86, contributed by Sander Stok.
-
-Version 1.0.3b [August 26, 1999]
- Replaced 2147483647L several places with PNG_MAX_UINT macro, defined in png.h
- Changed leading blanks to tabs in all makefiles.
- Define PNG_USE_PNGVCRD in makefile.w32, to get MMX assembler code.
- Made alternate versions of png_set_expand() in pngrtran.c, namely
- png_set_gray_1_2_4_to_8, png_set_palette_to_rgb, and png_set_tRNS_to_alpha
- (Greg Roelofs, in "PNG: The Definitive Guide"). Deleted the 1.0.3a aliases.
- Relocated start of 'extern "C"' block in png.h so it doesn't include pngconf.h
- Revised calculation of num_blocks in pngmem.c to avoid a potentially
- negative shift distance, whose results are undefined in the C language.
- Added a check in pngset.c to prevent writing multiple tIME chunks.
- Added a check in pngwrite.c to detect invalid small window_bits sizes.
-
-Version 1.0.3d [September 4, 1999]
- Fixed type casting of igamma in pngrutil.c
- Added new png_expand functions to scripts/pngdef.pas and pngos2.def
- Added a demo read_user_transform_fn that examines the row filters in pngtest.c
-
-Version 1.0.4 [September 24, 1999, not distributed publicly]
- Define PNG_ALWAYS_EXTERN in pngconf.h if __STDC__ is defined
- Delete #define PNG_INTERNAL and include "png.h" from pngasmrd.h
- Made several minor corrections to pngtest.c
- Renamed the makefiles with longer but more user friendly extensions.
- Copied the PNG copyright and license to a separate LICENSE file.
- Revised documentation, png.h, and example.c to remove reference to
- "viewing_gamma" which no longer appears in the PNG specification.
- Revised pngvcrd.c to use MMX code for interlacing only on the final pass.
- Updated pngvcrd.c to use the faster C filter algorithms from libpng-1.0.1a
- Split makefile.win32vc into two versions, makefile.vcawin32 (uses MMX
- assembler code) and makefile.vcwin32 (doesn't).
- Added a CPU timing report to pngtest.c (enabled by defining PNGTEST_TIMING)
- Added a copy of pngnow.png to the distribution.
-
-Version 1.0.4a [September 25, 1999]
- Increase max_pixel_depth in pngrutil.c if a user transform needs it.
- Changed several division operations to right-shifts in pngvcrd.c
-
-Version 1.0.4b [September 30, 1999]
- Added parentheses in line 3732 of pngvcrd.c
- Added a comment in makefile.linux warning about buggy -O3 in pgcc 2.95.1
-
-Version 1.0.4c [October 1, 1999]
- Added a "png_check_version" function in png.c and pngtest.c that will generate
- a helpful compiler error if an old png.h is found in the search path.
- Changed type of png_user_transform_depth|channels from int to png_byte.
- Added "Libpng is OSI Certified Open Source Software" statement to png.h
-
-Version 1.0.4d [October 6, 1999]
- Changed 0.45 to 0.45455 in png_set_sRGB()
- Removed unused PLTE entries from pngnow.png
- Re-enabled some parts of pngvcrd.c (png_combine_row) that work properly.
-
-Version 1.0.4e [October 10, 1999]
- Fixed sign error in pngvcrd.c (Greg Roelofs)
- Replaced some instances of memcpy with simple assignments in pngvcrd (GR-P)
-
-Version 1.0.4f [October 15, 1999]
- Surrounded example.c code with #if 0 .. #endif to prevent people from
- inadvertently trying to compile it.
- Changed png_get_header_version() from a function to a macro in png.h
- Added type casting mostly in pngrtran.c and pngwtran.c
- Removed some pointless "ptr = NULL" in pngmem.c
- Added a "contrib" directory containing the source code from Greg's book.
-
-Version 1.0.5 [October 15, 1999]
- Minor editing of the INSTALL and README files.
-
-Version 1.0.5a [October 23, 1999]
- Added contrib/pngsuite and contrib/pngminus (Willem van Schaik)
- Fixed a typo in the png_set_sRGB() function call in example.c (Jan Nijtmans)
- Further optimization and bugfix of pngvcrd.c
- Revised pngset.c so that it does not allocate or free memory in the user's
- text_ptr structure. Instead, it makes its own copy.
- Created separate write_end_info_struct in pngtest.c for a more severe test.
- Added code in pngwrite.c to free info_ptr->text[i].key to stop a memory leak.
-
-Version 1.0.5b [November 23, 1999]
- Moved PNG_FLAG_HAVE_CHUNK_HEADER, PNG_FLAG_BACKGROUND_IS_GRAY and
- PNG_FLAG_WROTE_tIME from flags to mode.
- Added png_write_info_before_PLTE() function.
- Fixed some typecasting in contrib/gregbook/*.c
- Updated scripts/makevms.com and added makevms.com to contrib/gregbook
- and contrib/pngminus (Martin Zinser)
-
-Version 1.0.5c [November 26, 1999]
- Moved png_get_header_version from png.h to png.c, to accommodate ansi2knr.
- Removed all global arrays (according to PNG_NO_GLOBAL_ARRAYS macro), to
- accommodate making DLL's: Moved usr_png_ver from global variable to function
- png_get_header_ver() in png.c. Moved png_sig to png_sig_bytes in png.c and
- eliminated use of png_sig in pngwutil.c. Moved the various png_CHNK arrays
- into pngtypes.h. Eliminated use of global png_pass arrays. Declared the
- png_CHNK and png_pass arrays to be "const". Made the global arrays
- available to applications (although none are used in libpng itself) when
- PNG_NO_GLOBAL_ARRAYS is not defined or when PNG_GLOBAL_ARRAYS is defined.
- Removed some extraneous "-I" from contrib/pngminus/makefile.std
- Changed the PNG_sRGB_INTENT macros in png.h to be consistent with PNG-1.2.
- Change PNG_SRGB_INTENT to PNG_sRGB_INTENT in libpng.txt and libpng.3
-
-Version 1.0.5d [November 29, 1999]
- Add type cast (png_const_charp) two places in png.c
- Eliminated pngtypes.h; use macros instead to declare PNG_CHNK arrays.
- Renamed "PNG_GLOBAL_ARRAYS" to "PNG_USE_GLOBAL_ARRAYS" and made available
- to applications a macro "PNG_USE_LOCAL_ARRAYS".
- comment out (with #ifdef) all the new declarations when
- PNG_USE_GLOBAL_ARRAYS is defined.
- Added PNG_EXPORT_VAR macro to accommodate making DLL's.
-
-Version 1.0.5e [November 30, 1999]
- Added iCCP, iTXt, and sPLT support; added "lang" member to the png_text
- structure; refactored the inflate/deflate support to make adding new chunks
- with trailing compressed parts easier in the future, and added new functions
- png_free_iCCP, png_free_pCAL, png_free_sPLT, png_free_text, png_get_iCCP,
- png_get_spalettes, png_set_iCCP, png_set_spalettes (Eric S. Raymond).
- NOTE: Applications that write text chunks MUST define png_text->lang
- before calling png_set_text(). It must be set to NULL if you want to
- write tEXt or zTXt chunks. If you want your application to be able to
- run with older versions of libpng, use
-
- #ifdef PNG_iTXt_SUPPORTED
- png_text[i].lang = NULL;
- #endif
-
- Changed png_get_oFFs() and png_set_oFFs() to use signed rather than unsigned
- offsets (Eric S. Raymond).
- Combined PNG_READ_cHNK_SUPPORTED and PNG_WRITE_cHNK_SUPPORTED macros into
- PNG_cHNK_SUPPORTED and combined the three types of PNG_text_SUPPORTED
- macros, leaving the separate macros also available.
- Removed comments on #endifs at the end of many short, non-nested #if-blocks.
-
-Version 1.0.5f [December 6, 1999]
- Changed makefile.solaris to issue a warning about potential problems when
- the ucb "ld" is in the path ahead of the ccs "ld".
- Removed "- [date]" from the "synopsis" line in libpng.3 and libpngpf.3.
- Added sCAL chunk support (Eric S. Raymond).
-
-Version 1.0.5g [December 7, 1999]
- Fixed "png_free_spallettes" typo in png.h
- Added code to handle new chunks in pngpread.c
- Moved PNG_CHNK string macro definitions outside of PNG_NO_EXTERN block
- Added "translated_key" to png_text structure and png_write_iTXt().
- Added code in pngwrite.c to work around a newly discovered zlib bug.
-
-Version 1.0.5h [December 10, 1999]
- NOTE: regarding the note for version 1.0.5e, the following must also
- be included in your code:
- png_text[i].translated_key = NULL;
- Unknown chunk handling is now supported.
- Option to eliminate all floating point support was added. Some new
- fixed-point functions such as png_set_gAMA_fixed() were added.
- Expanded tabs and removed trailing blanks in source files.
-
-Version 1.0.5i [December 13, 1999]
- Added some type casts to silence compiler warnings.
- Renamed "png_free_spalette" to "png_free_spalettes" for consistency.
- Removed leading blanks from a #define in pngvcrd.c
- Added some parameters to the new png_set_keep_unknown_chunks() function.
- Added a test for up->location != 0 in the first instance of writing
- unknown chunks in pngwrite.c
- Changed "num" to "i" in png_free_spalettes() and png_free_unknowns() to
- prevent recursion.
- Added png_free_hIST() function.
- Various patches to fix bugs in the sCAL and integer cHRM processing,
- and to add some convenience macros for use with sCAL.
-
-Version 1.0.5j [December 21, 1999]
- Changed "unit" parameter of png_write_sCAL from png_byte to int, to work
- around buggy compilers.
- Added new type "png_fixed_point" for integers that hold float*100000 values
- Restored backward compatibility of tEXt/zTXt chunk processing:
- Restored the first four members of png_text to the same order as v.1.0.5d.
- Added members "lang_key" and "itxt_length" to png_text struct. Set
- text_length=0 when "text" contains iTXt data. Use the "compression"
- member to distinguish among tEXt/zTXt/iTXt types. Added
- PNG_ITXT_COMPRESSION_NONE (1) and PNG_ITXT_COMPRESSION_zTXt(2) macros.
- The "Note" above, about backward incompatibility of libpng-1.0.5e, no
- longer applies.
- Fixed png_read|write_iTXt() to read|write parameters in the right order,
- and to write the iTXt chunk after IDAT if it appears in the end_ptr.
- Added pnggccrd.c, version of pngvcrd.c Intel assembler for gcc (Greg Roelofs)
- Reversed the order of trying to write floating-point and fixed-point gAMA.
-
-Version 1.0.5k [December 27, 1999]
- Added many parentheses, e.g., "if (a && b & c)" becomes "if (a && (b & c))"
- Added png_handle_as_unknown() function (Glenn)
- Added png_free_chunk_list() function and chunk_list and num_chunk_list members
- of png_ptr.
- Eliminated erroneous warnings about multiple sPLT chunks and sPLT-after-PLTE.
- Fixed a libpng-1.0.5h bug in pngrutil.c that was issuing erroneous warnings
- about ignoring incorrect gAMA with sRGB (gAMA was in fact not ignored)
- Added png_free_tRNS(); png_set_tRNS() now malloc's its own trans array (ESR).
- Define png_get_int_32 when oFFs chunk is supported as well as when pCAL is.
- Changed type of proflen from png_int_32 to png_uint_32 in png_get_iCCP().
-
-Version 1.0.5l [January 1, 2000]
- Added functions png_set_read_user_chunk_fn() and png_get_user_chunk_ptr()
- for setting a callback function to handle unknown chunks and for
- retrieving the associated user pointer (Glenn).
-
-Version 1.0.5m [January 7, 2000]
- Added high-level functions png_read_png(), png_write_png(), png_free_pixels().
-
-Version 1.0.5n [January 9, 2000]
- Added png_free_PLTE() function, and modified png_set_PLTE() to malloc its
- own memory for info_ptr->palette. This makes it safe for the calling
- application to free its copy of the palette any time after it calls
- png_set_PLTE().
-
-Version 1.0.5o [January 20, 2000]
- Cosmetic changes only (removed some trailing blanks and TABs)
-
-Version 1.0.5p [January 31, 2000]
- Renamed pngdll.mak to makefile.bd32
- Cosmetic changes in pngtest.c
-
-Version 1.0.5q [February 5, 2000]
- Relocated the makefile.solaris warning about PATH problems.
- Fixed pngvcrd.c bug by pushing/popping registers in mmxsupport (Bruce Oberg)
- Revised makefile.gcmmx
- Added PNG_SETJMP_SUPPORTED, PNG_SETJMP_NOT_SUPPORTED, and PNG_ABORT() macros
-
-Version 1.0.5r [February 7, 2000]
- Removed superfluous prototype for png_get_itxt from png.h
- Fixed a bug in pngrtran.c that improperly expanded the background color.
- Return *num_text=0 from png_get_text() when appropriate, and fix documentation
- of png_get_text() in libpng.txt/libpng.3.
-
-Version 1.0.5s [February 18, 2000]
- Added "png_jmp_env()" macro to pngconf.h, to help people migrate to the
- new error handler that's planned for the next libpng release, and changed
- example.c, pngtest.c, and contrib programs to use this macro.
- Revised some of the DLL-export macros in pngconf.h (Greg Roelofs)
- Fixed a bug in png_read_png() that caused it to fail to expand some images
- that it should have expanded.
- Fixed some mistakes in the unused and undocumented INCH_CONVERSIONS functions
- in pngget.c
- Changed the allocation of palette, history, and trans arrays back to
- the version 1.0.5 method (linking instead of copying) which restores
- backward compatibility with version 1.0.5. Added some remarks about
- that in example.c. Added "free_me" member to info_ptr and png_ptr
- and added png_free_data() function.
- Updated makefile.linux and makefile.gccmmx to make directories conditionally.
- Made cosmetic changes to pngasmrd.h
- Added png_set_rows() and png_get_rows(), for use with png_read|write_png().
- Modified png_read_png() to allocate info_ptr->row_pointers only if it
- hasn't already been allocated.
-
-Version 1.0.5t [March 4, 2000]
- Changed png_jmp_env() migration aiding macro to png_jmpbuf().
- Fixed "interlace" typo (should be "interlaced") in contrib/gregbook/read2-x.c
- Fixed bug with use of PNG_BEFORE_IHDR bit in png_ptr->mode, introduced when
- PNG_FLAG_HAVE_CHUNK_HEADER was moved into png_ptr->mode in version 1.0.5b
- Files in contrib/gregbook were revised to use png_jmpbuf() and to select
- a 24-bit visual if one is available, and to allow abbreviated options.
- Files in contrib/pngminus were revised to use the png_jmpbuf() macro.
- Removed spaces in makefile.linux and makefile.gcmmx, introduced in 1.0.5s
-
-Version 1.0.5u [March 5, 2000]
- Simplified the code that detects old png.h in png.c and pngtest.c
- Renamed png_spalette (_p, _pp) to png_sPLT_t (_tp, _tpp)
- Increased precision of rgb_to_gray calculations from 8 to 15 bits and
- added png_set_rgb_to_gray_fixed() function.
- Added makefile.bc32 (32-bit Borland C++, C mode)
-
-Version 1.0.5v [March 11, 2000]
- Added some parentheses to the png_jmpbuf macro definition.
- Updated references to the zlib home page, which has moved to freesoftware.com.
- Corrected bugs in documentation regarding png_read_row() and png_write_row().
- Updated documentation of png_rgb_to_gray calculations in libpng.3/libpng.txt.
- Renamed makefile.borland,turboc3 back to makefile.bor,tc3 as in version 1.0.3,
- revised borland makefiles; added makefile.ibmvac3 and makefile.gcc (Cosmin)
-
-Version 1.0.6 [March 20, 2000]
- Minor revisions of makefile.bor, libpng.txt, and gregbook/rpng2-win.c
- Added makefile.sggcc (SGI IRIX with gcc)
-
-Version 1.0.6d [April 7, 2000]
- Changed sprintf() to strcpy() in png_write_sCAL_s() to work without STDIO
- Added data_length parameter to png_decompress_chunk() function
- Revised documentation to remove reference to abandoned png_free_chnk functions
- Fixed an error in png_rgb_to_gray_fixed()
- Revised example.c, usage of png_destroy_write_struct().
- Renamed makefile.ibmvac3 to makefile.ibmc, added libpng.icc IBM project file
- Added a check for info_ptr->free_me&PNG_FREE_TEXT when freeing text in png.c
- Simplify png_sig_bytes() function to remove use of non-ISO-C strdup().
-
-Version 1.0.6e [April 9, 2000]
- Added png_data_freer() function.
- In the code that checks for over-length tRNS chunks, added check of
- info_ptr->num_trans as well as png_ptr->num_trans (Matthias Benckmann)
- Minor revisions of libpng.txt/libpng.3.
- Check for existing data and free it if the free_me flag is set, in png_set_*()
- and png_handle_*().
- Only define PNG_WEIGHTED_FILTERS_SUPPORTED when PNG_FLOATING_POINT_SUPPORTED
- is defined.
- Changed several instances of PNG_NO_CONSOLE_ID to PNG_NO_STDIO in pngrutil.c
- and mentioned the purposes of the two macros in libpng.txt/libpng.3.
-
-Version 1.0.6f [April 14, 2000]
- Revised png_set_iCCP() and png_set_rows() to avoid prematurely freeing data.
- Add checks in png_set_text() for NULL members of the input text structure.
- Revised libpng.txt/libpng.3.
- Removed superfluous prototype for png_set_iTXt from png.h
- Removed "else" from pngread.c, after png_error(), and changed "0" to "length".
- Changed several png_errors about malformed ancillary chunks to png_warnings.
-
-Version 1.0.6g [April 24, 2000]
- Added png_pass-* arrays to pnggccrd.c when PNG_USE_LOCAL_ARRAYS is defined.
- Relocated paragraph about png_set_background() in libpng.3/libpng.txt
- and other revisions (Matthias Benckmann)
- Relocated info_ptr->free_me, png_ptr->free_me, and other info_ptr and
- png_ptr members to restore binary compatibility with libpng-1.0.5
- (breaks compatibility with libpng-1.0.6).
-
-Version 1.0.6h [April 24, 2000]
- Changed shared library so-number pattern from 2.x.y.z to xy.z (this builds
- libpng.so.10 & libpng.so.10.6h instead of libpng.so.2 & libpng.so.2.1.0.6h)
- This is a temporary change for test purposes.
-
-Version 1.0.6i [May 2, 2000]
- Rearranged some members at the end of png_info and png_struct, to put
- unknown_chunks_num and free_me within the original size of the png_structs
- and free_me, png_read_user_fn, and png_free_fn within the original png_info,
- because some old applications allocate the structs directly instead of
- using png_create_*().
- Added documentation of user memory functions in libpng.txt/libpng.3
- Modified png_read_png so that it will use user_allocated row_pointers
- if present, unless free_me directs that it be freed, and added description
- of the use of png_set_rows() and png_get_rows() in libpng.txt/libpng.3.
- Added PNG_LEGACY_SUPPORTED macro, and #ifdef out all new (since version
- 1.00) members of png_struct and png_info, to regain binary compatibility
- when you define this macro. Capabilities lost in this event
- are user transforms (new in version 1.0.0),the user transform pointer
- (new in version 1.0.2), rgb_to_gray (new in 1.0.5), iCCP, sCAL, sPLT,
- the high-level interface, and unknown chunks support (all new in 1.0.6).
- This was necessary because of old applications that allocate the structs
- directly as authors were instructed to do in libpng-0.88 and earlier,
- instead of using png_create_*().
- Added modes PNG_CREATED_READ_STRUCT and PNG_CREATED_WRITE_STRUCT which
- can be used to detect codes that directly allocate the structs, and
- code to check these modes in png_read_init() and png_write_init() and
- generate a libpng error if the modes aren't set and PNG_LEGACY_SUPPORTED
- was not defined.
- Added makefile.intel and updated makefile.watcom (Pawel Mrochen)
-
-Version 1.0.6j [May 3, 2000]
- Overloaded png_read_init() and png_write_init() with macros that convert
- calls to png_read_init_2() or png_write_init_2() that check the version
- and structure sizes.
-
-Version 1.0.7beta11 [May 7, 2000]
- Removed the new PNG_CREATED_READ_STRUCT and PNG_CREATED_WRITE_STRUCT modes
- which are no longer used.
- Eliminated the three new members of png_text when PNG_LEGACY_SUPPORTED is
- defined or when neither PNG_READ_iTXt_SUPPORTED nor PNG_WRITE_iTXt_SUPPORTED
- is defined.
- Made PNG_NO_READ|WRITE_iTXt the default setting, to avoid memory
- overrun when old applications fill the info_ptr->text structure directly.
- Added PNGAPI macro, and added it to the definitions of all exported functions.
- Relocated version macro definitions ahead of the includes of zlib.h and
- pngconf.h in png.h.
-
-Version 1.0.7beta12 [May 12, 2000]
- Revised pngset.c to avoid a problem with expanding the png_debug macro.
- Deleted some extraneous defines from pngconf.h
- Made PNG_NO_CONSOLE_IO the default condition when PNG_BUILD_DLL is defined.
- Use MSC _RPTn debugging instead of fprintf if _MSC_VER is defined.
- Added png_access_version_number() function.
- Check for mask&PNG_FREE_CHNK (for TEXT, SCAL, PCAL) in png_free_data().
- Expanded libpng.3/libpng.txt information about png_data_freer().
-
-Version 1.0.7beta14 [May 17, 2000] (beta13 was not published)
- Changed pnggccrd.c and pngvcrd.c to handle bad adaptive filter types as
- warnings instead of errors, as pngrutil.c does.
- Set the PNG_INFO_IDAT valid flag in png_set_rows() so png_write_png()
- will actually write IDATs.
- Made the default PNG_USE_LOCAL_ARRAYS depend on PNG_DLL instead of WIN32.
- Make png_free_data() ignore its final parameter except when freeing data
- that can have multiple instances (text, sPLT, unknowns).
- Fixed a new bug in png_set_rows().
- Removed info_ptr->valid tests from png_free_data(), as in version 1.0.5.
- Added png_set_invalid() function.
- Fixed incorrect illustrations of png_destroy_write_struct() in example.c.
-
-Version 1.0.7beta15 [May 30, 2000]
- Revised the deliberately erroneous Linux setjmp code in pngconf.h to produce
- fewer error messages.
- Rearranged checks for Z_OK to check the most likely path first in pngpread.c
- and pngwutil.c.
- Added checks in pngtest.c for png_create_*() returning NULL, and mentioned
- in libpng.txt/libpng.3 the need for applications to check this.
- Changed names of png_default_*() functions in pngtest to pngtest_*().
- Changed return type of png_get_x|y_offset_*() from png_uint_32 to png_int_32.
- Fixed some bugs in the unused PNG_INCH_CONVERSIONS functions in pngget.c
- Set each pointer to NULL after freeing it in png_free_data().
- Worked around a problem in pngconf.h; AIX's strings.h defines an "index"
- macro that conflicts with libpng's png_color_16.index. (Dimitri
- Papadapoulos)
- Added "msvc" directory with MSVC++ project files (Simon-Pierre Cadieux).
-
-Version 1.0.7beta16 [June 4, 2000]
- Revised the workaround of AIX string.h "index" bug.
- Added a check for overlength PLTE chunk in pngrutil.c.
- Added PNG_NO_POINTER_INDEXING macro to use array-indexing instead of pointer
- indexing in pngrutil.c and pngwutil.c to accommodate a buggy compiler.
- Added a warning in png_decompress_chunk() when it runs out of data, e.g.
- when it tries to read an erroneous PhotoShop iCCP chunk.
- Added PNG_USE_DLL macro.
- Revised the copyright/disclaimer/license notice.
- Added contrib/msvctest directory
-
-Version 1.0.7rc1 [June 9, 2000]
- Corrected the definition of PNG_TRANSFORM_INVERT_ALPHA (0x0400 not 0x0200)
- Added contrib/visupng directory (Willem van Schaik)
-
-Version 1.0.7beta18 [June 23, 2000]
- Revised PNGAPI definition, and pngvcrd.c to work with __GCC__
- and do not redefine PNGAPI if it is passed in via a compiler directive.
- Revised visupng/PngFile.c to remove returns from within the Try block.
- Removed leading underscores from "_PNG_H" and "_PNG_SAVE_BSD_SOURCE" macros.
- Updated contrib/visupng/cexcept.h to version 1.0.0.
- Fixed bugs in pngwrite.c and pngwutil.c that prevented writing iCCP chunks.
-
-Version 1.0.7rc2 [June 28, 2000]
- Updated license to include disclaimers required by UCITA.
- Fixed "DJBPP" typo in pnggccrd.c introduced in beta18.
-
-Version 1.0.7 [July 1, 2000]
- Revised the definition of "trans_values" in libpng.3/libpng.txt
-
-Version 1.0.8beta1 [July 8, 2000]
- Added png_free(png_ptr, key) two places in pngpread.c to stop memory leaks.
- Changed PNG_NO_STDIO to PNG_NO_CONSOLE_IO, several places in pngrutil.c and
- pngwutil.c.
- Changed PNG_EXPORT_VAR to use PNG_IMPEXP, in pngconf.h.
- Removed unused "#include <assert.h>" from png.c
- Added WindowsCE support.
- Revised pnggccrd.c to work with gcc-2.95.2 and in the Cygwin environment.
-
-Version 1.0.8beta2 [July 10, 2000]
- Added project files to the wince directory and made further revisions
- of pngtest.c, pngrio.c, and pngwio.c in support of WindowsCE.
-
-Version 1.0.8beta3 [July 11, 2000]
- Only set the PNG_FLAG_FREE_TRNS or PNG_FREE_TRNS flag in png_handle_tRNS()
- for indexed-color input files to avoid potential double-freeing trans array
- under some unusual conditions; problem was introduced in version 1.0.6f.
- Further revisions to pngtest.c and files in the wince subdirectory.
-
-Version 1.0.8beta4 [July 14, 2000]
- Added the files pngbar.png and pngbar.jpg to the distribution.
- Added makefile.cygwin, and cygwin support in pngconf.h
- Added PNG_NO_ZALLOC_ZERO macro (makes png_zalloc skip zeroing memory)
-
-Version 1.0.8rc1 [July 16, 2000]
- Revised png_debug() macros and statements to eliminate compiler warnings.
-
-Version 1.0.8 [July 24, 2000]
- Added png_flush() in pngwrite.c, after png_write_IEND().
- Updated makefile.hpux to build a shared library.
-
-Version 1.0.9beta1 [November 10, 2000]
- Fixed typo in scripts/makefile.hpux
- Updated makevms.com in scripts and contrib/* and contrib/* (Martin Zinser)
- Fixed seqence-point bug in contrib/pngminus/png2pnm (Martin Zinser)
- Changed "cdrom.com" in documentation to "libpng.org"
- Revised pnggccrd.c to get it all working, and updated makefile.gcmmx (Greg).
- Changed type of "params" from voidp to png_voidp in png_read|write_png().
- Make sure PNGAPI and PNG_IMPEXP are defined in pngconf.h.
- Revised the 3 instances of WRITEFILE in pngtest.c.
- Relocated "msvc" and "wince" project subdirectories into "dll" subdirectory.
- Updated png.rc in dll/msvc project
- Revised makefile.dec to define and use LIBPATH and INCPATH
- Increased size of global png_libpng_ver[] array from 12 to 18 chars.
- Made global png_libpng_ver[], png_sig[] and png_pass_*[] arrays const.
- Removed duplicate png_crc_finish() from png_handle_bKGD() function.
- Added a warning when application calls png_read_update_info() multiple times.
- Revised makefile.cygwin
- Fixed bugs in iCCP support in pngrutil.c and pngwutil.c.
- Replaced png_set_empty_plte_permitted() with png_permit_mng_features().
-
-Version 1.0.9beta2 [November 19, 2000]
- Renamed the "dll" subdirectory "projects".
- Added borland project files to "projects" subdirectory.
- Set VS_FF_PRERELEASE and VS_FF_PATCHED flags in msvc/png.rc when appropriate.
- Add error message in png_set_compression_buffer_size() when malloc fails.
-
-Version 1.0.9beta3 [November 23, 2000]
- Revised PNG_LIBPNG_BUILD_TYPE macro in png.h, used in the msvc project.
- Removed the png_flush() in pngwrite.c that crashes some applications
- that don't set png_output_flush_fn.
- Added makefile.macosx and makefile.aix to scripts directory.
-
-Version 1.0.9beta4 [December 1, 2000]
- Change png_chunk_warning to png_warning in png_check_keyword().
- Increased the first part of msg buffer from 16 to 18 in png_chunk_error().
-
-Version 1.0.9beta5 [December 15, 2000]
- Added support for filter method 64 (for PNG datastreams embedded in MNG).
-
-Version 1.0.9beta6 [December 18, 2000]
- Revised png_set_filter() to accept filter method 64 when appropriate.
- Added new PNG_HAVE_PNG_SIGNATURE bit to png_ptr->mode and use it to
- help prevent applications from using MNG features in PNG datastreams.
- Added png_permit_mng_features() function.
- Revised libpng.3/libpng.txt. Changed "filter type" to "filter method".
-
-Version 1.0.9rc1 [December 23, 2000]
- Revised test for PNG_HAVE_PNG_SIGNATURE in pngrutil.c
- Fixed error handling of unknown compression type in png_decompress_chunk().
- In pngconf.h, define __cdecl when _MSC_VER is defined.
-
-Version 1.0.9beta7 [December 28, 2000]
- Changed PNG_TEXT_COMPRESSION_zTXt to PNG_COMPRESSION_TYPE_BASE several places.
- Revised memory management in png_set_hIST and png_handle_hIST in a backward
- compatible manner. PLTE and tRNS were revised similarly.
- Revised the iCCP chunk reader to ignore trailing garbage.
-
-Version 1.0.9beta8 [January 12, 2001]
- Moved pngasmrd.h into pngconf.h.
- Improved handling of out-of-spec garbage iCCP chunks generated by PhotoShop.
-
-Version 1.0.9beta9 [January 15, 2001]
- Added png_set_invalid, png_permit_mng_features, and png_mmx_supported to
- wince and msvc project module definition files.
- Minor revision of makefile.cygwin.
- Fixed bug with progressive reading of narrow interlaced images in pngpread.c
-
-Version 1.0.9beta10 [January 16, 2001]
- Do not typedef png_FILE_p in pngconf.h when PNG_NO_STDIO is defined.
- Fixed "png_mmx_supported" typo in project definition files.
-
-Version 1.0.9beta11 [January 19, 2001]
- Updated makefile.sgi to make shared library.
- Removed png_mmx_support() function and disabled PNG_MNG_FEATURES_SUPPORTED
- by default, for the benefit of DLL forward compatibility. These will
- be re-enabled in version 1.2.0.
-
-Version 1.0.9rc2 [January 22, 2001]
- Revised cygwin support.
-
-Version 1.0.9 [January 31, 2001]
- Added check of cygwin's ALL_STATIC in pngconf.h
- Added "-nommx" parameter to contrib/gregbook/rpng2-win and rpng2-x demos.
-
-Version 1.0.10beta1 [March 14, 2001]
- Revised makefile.dec, makefile.sgi, and makefile.sggcc; added makefile.hpgcc.
- Reformatted libpng.3 to eliminate bad line breaks.
- Added checks for _mmx_supported in the read_filter_row function of pnggccrd.c
- Added prototype for png_mmx_support() near the top of pnggccrd.c
- Moved some error checking from png_handle_IHDR to png_set_IHDR.
- Added PNG_NO_READ_SUPPORTED and PNG_NO_WRITE_SUPPORTED macros.
- Revised png_mmx_support() function in pnggccrd.c
- Restored version 1.0.8 PNG_WRITE_EMPTY_PLTE_SUPPORTED behavior in pngwutil.c
- Fixed memory leak in contrib/visupng/PngFile.c
- Fixed bugs in png_combine_row() in pnggccrd.c and pngvcrd.c (C version)
- Added warnings when retrieving or setting gamma=0.
- Increased the first part of msg buffer from 16 to 18 in png_chunk_warning().
-
-Version 1.0.10rc1 [March 23, 2001]
- Changed all instances of memcpy, strcpy, and strlen to png_memcpy, png_strcpy,
- and png_strlen.
- Revised png_mmx_supported() function in pnggccrd.c to return proper value.
- Fixed bug in progressive reading (pngpread.c) with small images (height < 8).
-
-Version 1.0.10 [March 30, 2001]
- Deleted extraneous space (introduced in 1.0.9) from line 42 of makefile.cygwin
- Added beos project files (Chris Herborth)
-
-Version 1.0.11beta1 [April 3, 2001]
- Added type casts on several png_malloc() calls (Dimitri Papadapoulos).
- Removed a no-longer needed AIX work-around from pngconf.h
- Changed several "//" single-line comments to C-style in pnggccrd.c
-
-Version 1.0.11beta2 [April 11, 2001]
- Removed PNGAPI from several functions whose prototypes did not have PNGAPI.
- Updated scripts/pngos2.def
-
-Version 1.0.11beta3 [April 14, 2001]
- Added checking the results of many instances of png_malloc() for NULL
-
-Version 1.0.11beta4 [April 20, 2001]
- Undid the changes from version 1.0.11beta3. Added a check for NULL return
- from user's malloc_fn().
- Removed some useless type casts of the NULL pointer.
- Added makefile.netbsd
-
-Version 1.0.11 [April 27, 2001]
- Revised makefile.netbsd
-
-Version 1.0.12beta1 [May 14, 2001]
- Test for Windows platform in pngconf.h when including malloc.h (Emmanuel Blot)
- Updated makefile.cygwin and handling of Cygwin's ALL_STATIC in pngconf.h
- Added some never-to-be-executed code in pnggccrd.c to quiet compiler warnings.
- Eliminated the png_error about apps using png_read|write_init(). Instead,
- libpng will reallocate the png_struct and info_struct if they are too small.
- This retains future binary compatibility for old applications written for
- libpng-0.88 and earlier.
-
-Version 1.2.0beta1 [May 6, 2001]
- Bumped DLLNUM to 2.
- Re-enabled PNG_MNG_FEATURES_SUPPORTED and enabled PNG_ASSEMBLER_CODE_SUPPORTED
- by default.
- Added runtime selection of MMX features.
- Added png_set_strip_error_numbers function and related macros.
-
-Version 1.2.0beta2 [May 7, 2001]
- Finished merging 1.2.0beta1 with version 1.0.11
- Added a check for attempts to read or write PLTE in grayscale PNG datastreams.
-
-Version 1.2.0beta3 [May 17, 2001]
- Enabled user memory function by default.
- Modified png_create_struct so it passes user mem_ptr to user memory allocator.
- Increased png_mng_features flag from png_byte to png_uint_32.
- Bumped shared-library (so-number) and dll-number to 3.
-
-Version 1.2.0beta4 [June 23, 2001]
- Check for missing profile length field in iCCP chunk and free chunk_data
- in case of truncated iCCP chunk.
- Bumped shared-library number to 3 in makefile.sgi and makefile.sggcc
- Bumped dll-number from 2 to 3 in makefile.cygwin
- Revised contrib/gregbook/rpng*-x.c to avoid a memory leak and to exit cleanly
- if user attempts to run it on an 8-bit display.
- Updated contrib/gregbook
- Use png_malloc instead of png_zalloc to allocate palette in pngset.c
- Updated makefile.ibmc
- Added some typecasts to eliminate gcc 3.0 warnings. Changed prototypes
- of png_write_oFFS width and height from png_uint_32 to png_int_32.
- Updated example.c
- Revised prototypes for png_debug_malloc and png_debug_free in pngtest.c
-
-Version 1.2.0beta5 [August 8, 2001]
- Revised contrib/gregbook
- Revised makefile.gcmmx
- Revised pnggccrd.c to conditionally compile some thread-unsafe code only
- when PNG_THREAD_UNSAFE_OK is defined.
- Added tests to prevent pngwutil.c from writing a bKGD or tRNS chunk with
- value exceeding 2^bit_depth-1
- Revised makefile.sgi and makefile.sggcc
- Replaced calls to fprintf(stderr,...) with png_warning() in pnggccrd.c
- Removed restriction that do_invert_mono only operate on 1-bit opaque files
-
-Version 1.2.0 [September 1, 2001]
- Changed a png_warning() to png_debug() in pnggccrd.c
- Fixed contrib/gregbook/rpng-x.c, rpng2-x.c to avoid crash with XFreeGC().
-
-Version 1.2.1beta1 [October 19, 2001]
- Revised makefile.std in contrib/pngminus
- Include background_1 in png_struct regardless of gamma support.
- Revised makefile.netbsd and makefile.macosx, added makefile.darwin.
- Revised example.c to provide more details about using row_callback().
-
-Version 1.2.1beta2 [October 25, 2001]
- Added type cast to each NULL appearing in a function call, except for
- WINCE functions.
- Added makefile.so9.
-
-Version 1.2.1beta3 [October 27, 2001]
- Removed type casts from all NULLs.
- Simplified png_create_struct_2().
-
-Version 1.2.1beta4 [November 7, 2001]
- Revised png_create_info_struct() and png_creat_struct_2().
- Added error message if png_write_info() was omitted.
- Type cast NULLs appearing in function calls when _NO_PROTO or
- PNG_TYPECAST_NULL is defined.
-
-Version 1.2.1rc1 [November 24, 2001]
- Type cast NULLs appearing in function calls except when PNG_NO_TYPECAST_NULL
- is defined.
- Changed typecast of "size" argument to png_size_t in pngmem.c calls to
- the user malloc_fn, to agree with the prototype in png.h
- Added a pop/push operation to pnggccrd.c, to preserve Eflag (Maxim Sobolev)
- Updated makefile.sgi to recognize LIBPATH and INCPATH.
- Updated various makefiles so "make clean" does not remove previous major
- version of the shared library.
-
-Version 1.2.1rc2 [December 4, 2001]
- Always allocate 256-entry internal palette, hist, and trans arrays, to
- avoid out-of-bounds memory reference caused by invalid PNG datastreams.
- Added a check for prefix_length > data_length in iCCP chunk handler.
-
-Version 1.2.1 [December 7, 2001]
- None.
-
-Version 1.2.2beta1 [February 22, 2002]
- Fixed a bug with reading the length of iCCP profiles (Larry Reeves).
- Revised makefile.linux, makefile.gcmmx, and makefile.sgi to generate
- libpng.a, libpng12.so (not libpng.so.3), and libpng12/png.h
- Revised makefile.darwin to remove "-undefined suppress" option.
- Added checks for gamma and chromaticity values over 21474.83, which exceed
- the limit for PNG unsigned 32-bit integers when encoded.
- Revised calls to png_create_read_struct() and png_create_write_struct()
- for simpler debugging.
- Revised png_zalloc() so zlib handles errors (uses PNG_FLAG_MALLOC_NULL_MEM_OK)
-
-Version 1.2.2beta2 [February 23, 2002]
- Check chunk_length and idat_size for invalid (over PNG_MAX_UINT) lengths.
- Check for invalid image dimensions in png_get_IHDR.
- Added missing "fi;" in the install target of the SGI makefiles.
- Added install-static to all makefiles that make shared libraries.
- Always do gamma compensation when image is partially transparent.
-
-Version 1.2.2beta3 [March 7, 2002]
- Compute background.gray and background_1.gray even when color_type is RGB
- in case image gets reduced to gray later.
- Modified shared-library makefiles to install pkgconfig/libpngNN.pc.
- Export (with PNGAPI) png_zalloc, png_zfree, and png_handle_as_unknown
- Removed unused png_write_destroy_info prototype from png.h
- Eliminated incorrect use of width_mmx from pnggccrd.c in pixel_bytes == 8 case
- Added install-shared target to all makefiles that make shared libraries.
- Stopped a double free of palette, hist, and trans when not using free_me.
- Added makefile.32sunu for Sun Ultra 32 and makefile.64sunu for Sun Ultra 64.
-
-Version 1.2.2beta4 [March 8, 2002]
- Compute background.gray and background_1.gray even when color_type is RGB
- in case image gets reduced to gray later (Jason Summers).
- Relocated a misplaced /bin/rm in the "install-shared" makefile targets
- Added PNG_1_0_X macro which can be used to build a 1.0.x-compatible library.
-
-Version 1.2.2beta5 [March 26, 2002]
- Added missing PNGAPI to several function definitions.
- Check for invalid bit_depth or color_type in png_get_IHDR(), and
- check for missing PLTE or IHDR in png_push_read_chunk() (Matthias Clasen).
- Revised iTXt support to accept NULL for lang and lang_key.
- Compute gamma for color components of background even when color_type is gray.
- Changed "()" to "{}" in scripts/libpng.pc.in.
- Revised makefiles to put png.h and pngconf.h only in $prefix/include/libpngNN
- Revised makefiles to make symlink to libpng.so.NN in addition to libpngNN.so
-
-Version 1.2.2beta6 [March 31, 2002]
-
-Version 1.0.13beta1 [March 31, 2002]
- Prevent png_zalloc() from trying to memset memory that it failed to acquire.
- Add typecasts of PNG_MAX_UINT in pngset_cHRM_fixed() (Matt Holgate).
- Ensure that the right function (user or default) is used to free the
- png_struct after an error in png_create_read_struct_2().
-
-Version 1.2.2rc1 [April 7, 2002]
-
-Version 1.0.13rc1 [April 7, 2002]
- Save the ebx register in pnggccrd.c (Sami Farin)
- Add "mem_ptr = png_ptr->mem_ptr" in png_destroy_write_struct() (Paul Gardner).
- Updated makefiles to put headers in include/libpng and remove old include/*.h.
-
-Version 1.2.2 [April 15, 2002]
-
-Version 1.0.13 [April 15, 2002]
- Revised description of png_set_filter() in libpng.3/libpng.txt.
- Revised makefile.netbsd and added makefile.neNNbsd and makefile.freebsd
-
-Version 1.0.13patch01 [April 17, 2002]
-
-Version 1.2.2patch01 [April 17, 2002]
- Changed ${PNGMAJ}.${PNGVER} bug to ${PNGVER} in makefile.sgi and
- makefile.sggcc
- Fixed VER -> PNGVER typo in makefile.macosx and added install-static to
- install
- Added install: target to makefile.32sunu and makefile.64sunu
-
-Version 1.0.13patch03 [April 18, 2002]
-
-Version 1.2.2patch03 [April 18, 2002]
- Revised 15 makefiles to link libpng.a to libpngNN.a and the include libpng
- subdirectory to libpngNN subdirectory without the full pathname.
- Moved generation of libpng.pc from "install" to "all" in 15 makefiles.
-
-Version 1.2.3rc1 [April 28, 2002]
- Added install-man target to 15 makefiles (Dimitri Papadopolous-Orfanos).
- Added $(DESTDIR) feature to 24 makefiles (Tim Mooney)
- Fixed bug with $prefix, should be $(prefix) in makefile.hpux.
- Updated cygwin-specific portion of pngconf.h and revised makefile.cygwin
- Added a link from libpngNN.pc to libpng.pc in 15 makefiles.
- Added links from include/libpngNN/*.h to include/*.h in 24 makefiles.
- Revised makefile.darwin to make relative links without full pathname.
- Added setjmp() at the end of png_create_*_struct_2() in case user forgets
- to put one in their application.
- Restored png_zalloc() and png_zfree() prototypes to version 1.2.1 and
- removed them from module definition files.
-
-Version 1.2.3rc2 [May 1, 2002]
- Fixed bug in reporting number of channels in pngget.c and pngset.c,
- that was introduced in version 1.2.2beta5.
- Exported png_zalloc(), png_zfree(), png_default_read(), png_default_write(),
- png_default_flush(), and png_push_fill_buffer() and included them in
- module definition files.
- Added "libpng.pc" dependency to the "install-shared" target in 15 makefiles.
-
-Version 1.2.3rc3 [May 1, 2002]
- Revised prototype for png_default_flush()
- Remove old libpng.pc and libpngNN.pc before installing new ones.
-
-Version 1.2.3rc4 [May 2, 2002]
- Typos in *.def files (png_default_read|write -> png_default_read|write_data)
- In makefiles, changed rm libpng.NN.pc to rm libpngNN.pc
- Added libpng-config and libpngNN-config and modified makefiles to install
- them.
- Changed $(MANPATH) to $(DESTDIR)$(MANPATH) in makefiles
- Added "Win32 DLL VB" configuration to projects/msvc/libpng.dsp
-
-Version 1.2.3rc5 [May 11, 2002]
- Changed "error" and "message" in prototypes to "error_message" and
- "warning_message" to avoid namespace conflict.
- Revised 15 makefiles to build libpng-config from libpng-config-*.in
- Once more restored png_zalloc and png_zfree to regular nonexported form.
- Restored png_default_read|write_data, png_default_flush, png_read_fill_buffer
- to nonexported form, but with PNGAPI, and removed them from module def
- files.
-
-Version 1.2.3rc6 [May 14, 2002]
- Removed "PNGAPI" from png_zalloc() and png_zfree() in png.c
- Changed "Gz" to "Gd" in projects/msvc/libpng.dsp and zlib.dsp.
- Removed leftover libpng-config "sed" script from four makefiles.
- Revised libpng-config creating script in 16 makefiles.
-
-Version 1.2.3 [May 22, 2002]
- Revised libpng-config target in makefile.cygwin.
- Removed description of png_set_mem_fn() from documentation.
- Revised makefile.freebsd.
- Minor cosmetic changes to 15 makefiles, e.g., $(DI) = $(DESTDIR)/$(INCDIR).
- Revised projects/msvc/README.txt
- Changed -lpng to -lpngNN in LDFLAGS in several makefiles.
-
-Version 1.2.4beta1 [May 24, 2002]
- Added libpng.pc and libpng-config to "all:" target in 16 makefiles.
- Fixed bug in 16 makefiles: $(DESTDIR)/$(LIBPATH) to $(DESTDIR)$(LIBPATH)
- Added missing "\" before closing double quote in makefile.gcmmx.
- Plugged various memory leaks; added png_malloc_warn() and png_set_text_2()
- functions.
-
-Version 1.2.4beta2 [June 25, 2002]
- Plugged memory leak of png_ptr->current_text (Matt Holgate).
- Check for buffer overflow before reading CRC in pngpread.c (Warwick Allison)
- Added -soname to the loader flags in makefile.dec, makefile.sgi, and
- makefile.sggcc.
- Added "test-installed" target to makefile.linux, makefile.gcmmx,
- makefile.sgi, and makefile.sggcc.
-
-Version 1.2.4beta3 [June 28, 2002]
- Plugged memory leak of row_buf in pngtest.c when there is a png_error().
- Detect buffer overflow in pngpread.c when IDAT is corrupted with extra data.
- Added "test-installed" target to makefile.32sunu, makefile.64sunu,
- makefile.beos, makefile.darwin, makefile.dec, makefile.macosx,
- makefile.solaris, makefile.hpux, makefile.hpgcc, and makefile.so9.
-
-Version 1.2.4rc1 and 1.0.14rc1 [July 2, 2002]
- Added "test-installed" target to makefile.cygwin and makefile.sco.
- Revised pnggccrd.c to be able to back out version 1.0.x via PNG_1_0_X macro.
-
-Version 1.2.4 and 1.0.14 [July 8, 2002]
- Changed png_warning() to png_error() when width is too large to process.
-
-Version 1.2.4patch01 [July 20, 2002]
- Revised makefile.cygwin to use DLL number 12 instead of 13.
-
-Version 1.2.5beta1 [August 6, 2002]
- Added code to contrib/gregbook/readpng2.c to ignore unused chunks.
- Replaced toucan.png in contrib/gregbook (it has been corrupt since 1.0.11)
- Removed some stray *.o files from contrib/gregbook.
- Changed png_error() to png_warning() about "Too much data" in pngpread.c
- and about "Extra compressed data" in pngrutil.c.
- Prevent png_ptr->pass from exceeding 7 in png_push_finish_row().
- Updated makefile.hpgcc
- Updated png.c and pnggccrd.c handling of return from png_mmx_support()
-
-Version 1.2.5beta2 [August 15, 2002]
- Only issue png_warning() about "Too much data" in pngpread.c when avail_in
- is nonzero.
- Updated makefiles to install a separate libpng.so.3 with its own rpath.
-
-Version 1.2.5rc1 and 1.0.15rc1 [August 24, 2002]
- Revised makefiles to not remove previous minor versions of shared libraries.
-
-Version 1.2.5rc2 and 1.0.15rc2 [September 16, 2002]
- Revised 13 makefiles to remove "-lz" and "-L$(ZLIBLIB)", etc., from shared
- library loader directive.
- Added missing "$OBJSDLL" line to makefile.gcmmx.
- Added missing "; fi" to makefile.32sunu.
-
-Version 1.2.5rc3 and 1.0.15rc3 [September 18, 2002]
- Revised libpng-config script.
-
-Version 1.2.5 and 1.0.15 [October 3, 2002]
- Revised makefile.macosx, makefile.darwin, makefile.hpgcc, and makefile.hpux,
- and makefile.aix.
- Relocated two misplaced PNGAPI lines in pngtest.c
-
-Version 1.2.6beta1 [October 22, 2002]
- Commented out warning about uninitialized mmx_support in pnggccrd.c.
- Changed "IBMCPP__" flag to "__IBMCPP__" in pngconf.h.
- Relocated two more misplaced PNGAPI lines in pngtest.c
- Fixed memory overrun bug in png_do_read_filler() with 16-bit datastreams,
- introduced in version 1.0.2.
- Revised makefile.macosx, makefile.dec, makefile.aix, and makefile.32sunu.
-
-Version 1.2.6beta2 [November 1, 2002]
- Added libpng-config "--ldopts" output.
- Added "AR=ar" and "ARFLAGS=rc" and changed "ar rc" to "$(AR) $(ARFLAGS)"
- in makefiles.
-
-Version 1.2.6beta3 [July 18, 2004]
- Reverted makefile changes from version 1.2.6beta2 and some of the changes
- from version 1.2.6beta1; these will be postponed until version 1.2.7.
- Version 1.2.6 is going to be a simple bugfix release.
- Changed the one instance of "ln -sf" to "ln -f -s" in each Sun makefile.
- Fixed potential overrun in pngerror.c by using strncpy instead of memcpy.
- Added "#!/bin/sh" at the top of configure, for recognition of the
- 'x' flag under Cygwin (Cosmin).
- Optimized vacuous tests that silence compiler warnings, in png.c (Cosmin).
- Added support for PNG_USER_CONFIG, in pngconf.h (Cosmin).
- Fixed the special memory handler for Borland C under DOS, in pngmem.c
- (Cosmin).
- Removed some spurious assignments in pngrutil.c (Cosmin).
- Replaced 65536 with 65536L, and 0xffff with 0xffffL, to silence warnings
- on 16-bit platforms (Cosmin).
- Enclosed shift op expressions in parentheses, to silence warnings (Cosmin).
- Used proper type png_fixed_point, to avoid problems on 16-bit platforms,
- in png_handle_sRGB() (Cosmin).
- Added compression_type to png_struct, and optimized the window size
- inside the deflate stream (Cosmin).
- Fixed definition of isnonalpha(), in pngerror.c and pngrutil.c (Cosmin).
- Fixed handling of unknown chunks that come after IDAT (Cosmin).
- Allowed png_error() and png_warning() to work even if png_ptr == NULL
- (Cosmin).
- Replaced row_info->rowbytes with row_bytes in png_write_find_filter()
- (Cosmin).
- Fixed definition of PNG_LIBPNG_VER_DLLNUM (Simon-Pierre).
- Used PNG_LIBPNG_VER and PNG_LIBPNG_VER_STRING instead of the hardcoded
- values in png.c (Simon-Pierre, Cosmin).
- Initialized png_libpng_ver[] with PNG_LIBPNG_VER_STRING (Simon-Pierre).
- Replaced PNG_LIBPNG_VER_MAJOR with PNG_LIBPNG_VER_DLLNUM in png.rc
- (Simon-Pierre).
- Moved the definition of PNG_HEADER_VERSION_STRING near the definitions
- of the other PNG_LIBPNG_VER_... symbols in png.h (Cosmin).
- Relocated #ifndef PNGAPI guards in pngconf.h (Simon-Pierre, Cosmin).
- Updated scripts/makefile.vc(a)win32 (Cosmin).
- Updated the MSVC project (Simon-Pierre, Cosmin).
- Updated the Borland C++ Builder project (Cosmin).
- Avoided access to asm_flags in pngvcrd.c, if PNG_1_0_X is defined (Cosmin).
- Commented out warning about uninitialized mmx_support in pngvcrd.c (Cosmin).
- Removed scripts/makefile.bd32 and scripts/pngdef.pas (Cosmin).
- Added extra guard around inclusion of Turbo C memory headers, in pngconf.h
- (Cosmin).
- Renamed projects/msvc/ to projects/visualc6/, and projects/borland/ to
- projects/cbuilder5/ (Cosmin).
- Moved projects/visualc6/png32ms.def to scripts/pngw32.def,
- and projects/visualc6/png.rc to scripts/pngw32.rc (Cosmin).
- Added projects/visualc6/pngtest.dsp; removed contrib/msvctest/ (Cosmin).
- Changed line endings to DOS style in cbuilder5 and visualc6 files, even
- in the tar.* distributions (Cosmin).
- Updated contrib/visupng/VisualPng.dsp (Cosmin).
- Updated contrib/visupng/cexcept.h to version 2.0.0 (Cosmin).
- Added a separate distribution with "configure" and supporting files (Junichi).
-
-Version 1.2.6beta4 [July 28, 2004]
- Added user ability to change png_size_t via a PNG_SIZE_T macro.
- Added png_sizeof() and png_convert_size() functions.
- Added PNG_SIZE_MAX (maximum value of a png_size_t variable.
- Added check in png_malloc_default() for (size_t)size != (png_uint_32)size
- which would indicate an overflow.
- Changed sPLT failure action from png_error to png_warning and abandon chunk.
- Changed sCAL and iCCP failures from png_error to png_warning and abandon.
- Added png_get_uint_31(png_ptr, buf) function.
- Added PNG_UINT_32_MAX macro.
- Renamed PNG_MAX_UINT to PNG_UINT_31_MAX.
- Made png_zalloc() issue a png_warning and return NULL on potential
- overflow.
- Turn on PNG_NO_ZALLOC_ZERO by default in version 1.2.x
- Revised "clobber list" in pnggccrd.c so it will compile under gcc-3.4.
- Revised Borland portion of png_malloc() to return NULL or issue
- png_error() according to setting of PNG_FLAG_MALLOC_NULL_MEM_OK.
- Added PNG_NO_SEQUENTIAL_READ_SUPPORTED macro to conditionally remove
- sequential read support.
- Added some "#if PNG_WRITE_SUPPORTED" blocks.
- Added #ifdef to remove some redundancy in png_malloc_default().
- Use png_malloc instead of png_zalloc to allocate the palette.
-
-Version 1.0.16rc1 and 1.2.6rc1 [August 4, 2004]
- Fixed buffer overflow vulnerability (CVE-2004-0597) in png_handle_tRNS().
- Fixed NULL dereference vulnerability (CVE-2004-0598) in png_handle_iCCP().
- Fixed integer overflow vulnerability (CVE-2004-0599) in png_read_png().
- Fixed some harmless bugs in png_handle_sBIT, etc, that would cause
- duplicate chunk types to go undetected.
- Fixed some timestamps in the -config version
- Rearranged order of processing of color types in png_handle_tRNS().
- Added ROWBYTES macro to calculate rowbytes without integer overflow.
- Updated makefile.darwin and removed makefile.macosx from scripts directory.
- Imposed default one million column, one-million row limits on the image
- dimensions, and added png_set_user_limits() function to override them.
- Revised use of PNG_SET_USER_LIMITS_SUPPORTED macro.
- Fixed wrong cast of returns from png_get_user_width|height_max().
- Changed some "keep the compiler happy" from empty statements to returns,
- Revised libpng.txt to remove 1.2.x stuff from the 1.0.x distribution
-
-Version 1.0.16rc2 and 1.2.6rc2 [August 7, 2004]
- Revised makefile.darwin and makefile.solaris. Removed makefile.macosx.
- Revised pngtest's png_debug_malloc() to use png_malloc() instead of
- png_malloc_default() which is not supposed to be exported.
- Fixed off-by-one error in one of the conversions to PNG_ROWBYTES() in
- pngpread.c. Bug was introduced in 1.2.6rc1.
- Fixed bug in RGB to RGBX transformation introduced in 1.2.6rc1.
- Fixed old bug in RGB to Gray transformation.
- Fixed problem with 64-bit compilers by casting arguments to abs()
- to png_int_32.
- Changed "ln -sf" to "ln -f -s" in three makefiles (solaris, sco, so9).
- Changed "HANDLE_CHUNK_*" to "PNG_HANDLE_CHUNK_*" (Cosmin)
- Added "-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)" to 15 *NIX makefiles.
- Added code to update the row_info->colortype in png_do_read_filler() (MSB).
-
-Version 1.0.16rc3 and 1.2.6rc3 [August 9, 2004]
- Eliminated use of "abs()" in testing cHRM and gAMA values, to avoid
- trouble with some 64-bit compilers. Created PNG_OUT_OF_RANGE() macro.
- Revised documentation of png_set_keep_unknown_chunks().
- Check handle_as_unknown status in pngpread.c, as in pngread.c previously.
- Moved "PNG_HANDLE_CHUNK_*" macros out of PNG_INTERNAL section of png.h
- Added "rim" definitions for CONST4 and CONST6 in pnggccrd.c
-
-Version 1.0.16rc4 and 1.2.6rc4 [August 10, 2004]
- Fixed mistake in pngtest.c introduced in 1.2.6rc2 (declaration of
- "pinfo" was out of place).
-
-Version 1.0.16rc5 and 1.2.6rc5 [August 10, 2004]
- Moved "PNG_HANDLE_CHUNK_*" macros out of PNG_ASSEMBLER_CODE_SUPPORTED
- section of png.h where they were inadvertently placed in version rc3.
-
-Version 1.2.6 and 1.0.16 [August 15, 2004]
- Revised pngtest so memory allocation testing is only done when PNG_DEBUG==1.
-
-Version 1.2.7beta1 [August 26, 2004]
- Removed unused pngasmrd.h file.
- Removed references to uu.net for archived files. Added references to
- PNG Spec (second edition) and the PNG ISO/IEC Standard.
- Added "test-dd" target in 15 makefiles, to run pngtest in DESTDIR.
- Fixed bug with "optimized window size" in the IDAT datastream, that
- causes libpng to write PNG files with incorrect zlib header bytes.
-
-Version 1.2.7beta2 [August 28, 2004]
- Fixed bug with sCAL chunk and big-endian machines (David Munro).
- Undid new code added in 1.2.6rc2 to update the color_type in
- png_set_filler().
- Added png_set_add_alpha() that updates color type.
-
-Version 1.0.17rc1 and 1.2.7rc1 [September 4, 2004]
- Revised png_set_strip_filler() to not remove alpha if color_type has alpha.
-
-Version 1.2.7 and 1.0.17 [September 12, 2004]
- Added makefile.hp64
- Changed projects/msvc/png32ms.def to scripts/png32ms.def in makefile.cygwin
-
-Version 1.2.8beta1 [November 1, 2004]
- Fixed bug in png_text_compress() that would fail to complete a large block.
- Fixed bug, introduced in libpng-1.2.7, that overruns a buffer during
- strip alpha operation in png_do_strip_filler().
- Added PNG_1_2_X definition in pngconf.h
- Use #ifdef to comment out png_info_init in png.c and png_read_init in
- pngread.c (as of 1.3.0)
-
-Version 1.2.8beta2 [November 2, 2004]
- Reduce color_type to a nonalpha type after strip alpha operation in
- png_do_strip_filler().
-
-Version 1.2.8beta3 [November 3, 2004]
- Revised definitions of PNG_MAX_UINT_32, PNG_MAX_SIZE, and PNG_MAXSUM
-
-Version 1.2.8beta4 [November 12, 2004]
- Fixed (again) definition of PNG_LIBPNG_VER_DLLNUM in png.h (Cosmin).
- Added PNG_LIBPNG_BUILD_PRIVATE in png.h (Cosmin).
- Set png_ptr->zstream.data_type to Z_BINARY, to avoid unnecessary detection
- of data type in deflate (Cosmin).
- Deprecated but continue to support SPECIALBUILD and PRIVATEBUILD in favor of
- PNG_LIBPNG_BUILD_SPECIAL_STRING and PNG_LIBPNG_BUILD_PRIVATE_STRING.
-
-Version 1.2.8beta5 [November 20, 2004]
- Use png_ptr->flags instead of png_ptr->transformations to pass
- PNG_STRIP_ALPHA info to png_do_strip_filler(), to preserve ABI
- compatibility.
- Revised handling of SPECIALBUILD, PRIVATEBUILD,
- PNG_LIBPNG_BUILD_SPECIAL_STRING and PNG_LIBPNG_BUILD_PRIVATE_STRING.
-
-Version 1.2.8rc1 [November 24, 2004]
- Moved handling of BUILD macros from pngconf.h to png.h
- Added definition of PNG_LIBPNG_BASE_TYPE in png.h, inadvertently
- omitted from beta5.
- Revised scripts/pngw32.rc
- Despammed mailing addresses by masking "@" with "at".
- Inadvertently installed a supposedly faster test version of pngrutil.c
-
-Version 1.2.8rc2 [November 26, 2004]
- Added two missing "\" in png.h
- Change tests in pngread.c and pngpread.c to
- if (png_ptr->transformations || (png_ptr->flags&PNG_FLAG_STRIP_ALPHA))
- png_do_read_transformations(png_ptr);
-
-Version 1.2.8rc3 [November 28, 2004]
- Reverted pngrutil.c to version libpng-1.2.8beta5.
- Added scripts/makefile.elf with supporting code in pngconf.h for symbol
- versioning (John Bowler).
-
-Version 1.2.8rc4 [November 29, 2004]
- Added projects/visualc7 (Simon-pierre).
-
-Version 1.2.8rc5 [November 29, 2004]
- Fixed new typo in scripts/pngw32.rc
-
-Version 1.2.8 [December 3, 2004]
- Removed projects/visualc7, added projects/visualc71.
-
-Version 1.2.9beta1 [February 21, 2006]
- Initialized some structure members in pngwutil.c to avoid gcc-4.0.0 complaints
- Revised man page and libpng.txt to make it clear that one should not call
- png_read_end or png_write_end after png_read_png or png_write_png.
- Updated references to png-mng-implement mailing list.
- Fixed an incorrect typecast in pngrutil.c
- Added PNG_NO_READ_SUPPORTED conditional for making a write-only library.
- Added PNG_NO_WRITE_INTERLACING_SUPPORTED conditional.
- Optimized alpha-inversion loops in pngwtran.c
- Moved test for nonzero gamma outside of png_build_gamma_table() in pngrtran.c
- Make sure num_trans is <= 256 before copying data in png_set_tRNS().
- Make sure num_palette is <= 256 before copying data in png_set_PLTE().
- Interchanged order of write_swap_alpha and write_invert_alpha transforms.
- Added parentheses in the definition of PNG_LIBPNG_BUILD_TYPE (Cosmin).
- Optimized zlib window flag (CINFO) in contrib/pngsuite/*.png (Cosmin).
- Updated scripts/makefile.bc32 for Borland C++ 5.6 (Cosmin).
- Exported png_get_uint_32, png_save_uint_32, png_get_uint_16, png_save_uint_16,
- png_get_int_32, png_save_int_32, png_get_uint_31 (Cosmin).
- Added type cast (png_byte) in png_write_sCAL() (Cosmin).
- Fixed scripts/makefile.cygwin (Christian Biesinger, Cosmin).
- Default iTXt support was inadvertently enabled.
-
-Version 1.2.9beta2 [February 21, 2006]
- Check for png_rgb_to_gray and png_gray_to_rgb read transformations before
- checking for png_read_dither in pngrtran.c
- Revised checking of chromaticity limits to accommodate extended RGB
- colorspace (John Denker).
- Changed line endings in some of the project files to CRLF, even in the
- "Unix" tar distributions (Cosmin).
- Made png_get_int_32 and png_save_int_32 always available (Cosmin).
- Updated scripts/pngos2.def, scripts/pngw32.def and projects/wince/png32ce.def
- with the newly exported functions.
- Eliminated distributions without the "configure" script.
- Updated INSTALL instructions.
-
-Version 1.2.9beta3 [February 24, 2006]
- Fixed CRCRLF line endings in contrib/visupng/VisualPng.dsp
- Made libpng.pc respect EXEC_PREFIX (D. P. Kreil, J. Bowler)
- Removed reference to pngasmrd.h from Makefile.am
- Renamed CHANGES to ChangeLog.
- Renamed LICENSE to COPYING.
- Renamed ANNOUNCE to NEWS.
- Created AUTHORS file.
-
-Version 1.2.9beta4 [March 3, 2006]
- Changed definition of PKGCONFIG from $prefix/lib to $libdir in configure.ac
- Reverted to filenames LICENSE and ANNOUNCE; removed AUTHORS and COPYING.
- Removed newline from the end of some error and warning messages.
- Removed test for sqrt() from configure.ac and configure.
- Made swap tables in pngtrans.c PNG_CONST (Carlo Bramix).
- Disabled default iTXt support that was inadvertently enabled in
- libpng-1.2.9beta1.
- Added "OS2" to list of systems that don't need underscores, in pnggccrd.c
- Removed libpng version and date from *.c files.
-
-Version 1.2.9beta5 [March 4, 2006]
- Removed trailing blanks from source files.
- Put version and date of latest change in each source file, and changed
- copyright year accordingly.
- More cleanup of configure.ac, Makefile.am, and associated scripts.
- Restored scripts/makefile.elf which was inadvertently deleted.
-
-Version 1.2.9beta6 [March 6, 2006]
- Fixed typo (RELEASE) in configuration files.
-
-Version 1.2.9beta7 [March 7, 2006]
- Removed libpng.vers and libpng.sym from libpng12_la_SOURCES in Makefile.am
- Fixed inconsistent #ifdef's around png_sig_bytes() and png_set_sCAL_s()
- in png.h.
- Updated makefile.elf as suggested by debian.
- Made cosmetic changes to some makefiles, adding LN_SF and other macros.
- Made some makefiles accept "exec_prefix".
-
-Version 1.2.9beta8 [March 9, 2006]
- Fixed some "#if defined (..." which should be "#if defined(..."
- Bug introduced in libpng-1.2.8.
- Fixed inconsistency in definition of png_default_read_data()
- Restored blank that was lost from makefile.sggcc "clean" target in beta7.
- Revised calculation of "current" and "major" for irix in ltmain.sh
- Changed "mkdir" to "MKDIR_P" in some makefiles.
- Separated PNG_EXPAND and PNG_EXPAND_tRNS.
- Added png_set_expand_gray_1_2_4_to_8() and deprecated
- png_set_gray_1_2_4_to_8() which also expands tRNS to alpha.
-
-Version 1.2.9beta9 [March 10, 2006]
- Include "config.h" in pngconf.h when available.
- Added some checks for NULL png_ptr or NULL info_ptr (timeless)
-
-Version 1.2.9beta10 [March 20, 2006]
- Removed extra CR from contrib/visualpng/VisualPng.dsw (Cosmin)
- Made pnggccrd.c PIC-compliant (Christian Aichinger).
- Added makefile.mingw (Wolfgang Glas).
- Revised pngconf.h MMX checking.
-
-Version 1.2.9beta11 [March 22, 2006]
- Fixed out-of-order declaration in pngwrite.c that was introduced in beta9
- Simplified some makefiles by using LIBSO, LIBSOMAJ, and LIBSOVER macros.
-
-Version 1.2.9rc1 [March 31, 2006]
- Defined PNG_USER_PRIVATEBUILD when including "pngusr.h" (Cosmin).
- Removed nonsensical assertion check from pngtest.c (Cosmin).
-
-Version 1.2.9 [April 14, 2006]
- Revised makefile.beos and added "none" selector in ltmain.sh
-
-Version 1.2.10beta1 [April 15, 2006]
- Renamed "config.h" to "png_conf.h" and revised Makefile.am to add
- -DPNG_BUILDING_LIBPNG to compile directive, and modified pngconf.h
- to include png_conf.h only when PNG_BUILDING_LIBPNG is defined.
-
-Version 1.2.10beta2 [April 15, 2006]
- Manually updated Makefile.in and configure. Changed png_conf.h.in
- back to config.h.
-
-Version 1.2.10beta3 [April 15, 2006]
- Change png_conf.h back to config.h in pngconf.h.
-
-Version 1.2.10beta4 [April 16, 2006]
- Change PNG_BUILDING_LIBPNG to PNG_CONFIGURE_LIBPNG in config/Makefile*.
-
-Version 1.2.10beta5 [April 16, 2006]
- Added a configure check for compiling assembler code in pnggccrd.c
-
-Version 1.2.10beta6 [April 17, 2006]
- Revised the configure check for pnggccrd.c
- Moved -DPNG_CONFIGURE_LIBPNG into @LIBPNG_DEFINES@
- Added @LIBPNG_DEFINES@ to arguments when building libpng.sym
-
-Version 1.2.10beta7 [April 18, 2006]
- Change "exec_prefix=$prefix" to "exec_prefix=$(prefix)" in makefiles.
-
-Version 1.2.10rc1 [April 19, 2006]
- Ensure pngconf.h doesn't define both PNG_USE_PNGGCCRD and PNG_USE_PNGVCRD
- Fixed "LN_FS" typo in makefile.sco and makefile.solaris.
-
-Version 1.2.10rc2 [April 20, 2006]
- Added a backslash between -DPNG_CONFIGURE_LIBPNG and -DPNG_NO_ASSEMBLER_CODE
- in configure.ac and configure
- Made the configure warning about versioned symbols less arrogant.
-
-Version 1.2.10rc3 [April 21, 2006]
- Added a note in libpng.txt that png_set_sig_bytes(8) can be used when
- writing an embedded PNG without the 8-byte signature.
- Revised makefiles and configure to avoid making links to libpng.so.*
-
-Version 1.2.10 [April 23, 2006]
- Reverted configure to "rc2" state.
-
-Version 1.2.11beta1 [May 31, 2006]
- scripts/libpng.pc.in contained "configure" style version info and would
- not work with makefiles.
- The shared-library makefiles were linking to libpng.so.0 instead of
- libpng.so.3 compatibility as the library.
-
-Version 1.2.11beta2 [June 2, 2006]
- Increased sprintf buffer from 50 to 52 chars in pngrutil.c to avoid
- buffer overflow.
- Fixed bug in example.c (png_set_palette_rgb -> png_set_palette_to_rgb)
-
-Version 1.2.11beta3 [June 5, 2006]
- Prepended "#! /bin/sh" to ltmail.sh and contrib/pngminus/*.sh (Cosmin).
- Removed the accidental leftover Makefile.in~ (Cosmin).
- Avoided potential buffer overflow and optimized buffer in
- png_write_sCAL(), png_write_sCAL_s() (Cosmin).
- Removed the include directories and libraries from CFLAGS and LDFLAGS
- in scripts/makefile.gcc (Nelson A. de Oliveira, Cosmin).
-
-Version 1.2.11beta4 [June 6, 2006]
- Allow zero-length IDAT chunks after the entire zlib datastream, but not
- after another intervening chunk type.
-
-Version 1.0.19rc1, 1.2.11rc1 [June 13, 2006]
- Deleted extraneous square brackets from [config.h] in configure.ac
-
-Version 1.0.19rc2, 1.2.11rc2 [June 14, 2006]
- Added prototypes for PNG_INCH_CONVERSIONS functions to png.h
- Revised INSTALL and autogen.sh
- Fixed typo in several makefiles (-W1 should be -Wl)
- Added typedef for png_int_32 and png_uint_32 on 64-bit systems.
-
-Version 1.0.19rc3, 1.2.11rc3 [June 15, 2006]
- Removed the new typedefs for 64-bit systems (delay until version 1.4.0)
- Added one zero element to png_gamma_shift[] array in pngrtran.c to avoid
- reading out of bounds.
-
-Version 1.0.19rc4, 1.2.11rc4 [June 15, 2006]
- Really removed the new typedefs for 64-bit systems.
-
-Version 1.0.19rc5, 1.2.11rc5 [June 22, 2006]
- Removed png_sig_bytes entry from scripts/pngw32.def
-
-Version 1.0.19, 1.2.11 [June 26, 2006]
- None.
-
-Version 1.0.20, 1.2.12 [June 27, 2006]
- Really increased sprintf buffer from 50 to 52 chars in pngrutil.c to avoid
- buffer overflow.
-
-Version 1.2.13beta1 [October 2, 2006]
- Removed AC_FUNC_MALLOC from configure.ac
- Work around Intel-Mac compiler bug by setting PNG_NO_MMX_CODE in pngconf.h
- Change "logical" to "bitwise" throughout documentation.
- Detect and fix attempt to write wrong iCCP profile length (CVE-2006-7244)
-
-Version 1.0.21, 1.2.13 [November 14, 2006]
- Fix potential buffer overflow in sPLT chunk handler.
- Fix Makefile.am to not try to link to noexistent files.
- Check all exported functions for NULL png_ptr.
-
-Version 1.2.14beta1 [November 17, 2006]
- Relocated three misplaced tests for NULL png_ptr.
- Built Makefile.in with automake-1.9.6 instead of 1.9.2.
- Build configure with autoconf-2.60 instead of 2.59
-
-Version 1.2.14beta2 [November 17, 2006]
- Added some typecasts in png_zalloc().
-
-Version 1.2.14rc1 [November 20, 2006]
- Changed "strtod" to "png_strtod" in pngrutil.c
-
-Version 1.0.22, 1.2.14 [November 27, 2006]
- Added missing "$(srcdir)" in Makefile.am and Makefile.in
-
-Version 1.2.15beta1 [December 3, 2006]
- Generated configure with autoconf-2.61 instead of 2.60
- Revised configure.ac to update libpng.pc and libpng-config.
-
-Version 1.2.15beta2 [December 3, 2006]
- Always export MMX asm functions, just stubs if not building pnggccrd.c
-
-Version 1.2.15beta3 [December 4, 2006]
- Add "png_bytep" typecast to profile while calculating length in pngwutil.c
-
-Version 1.2.15beta4 [December 7, 2006]
- Added scripts/CMakeLists.txt
- Changed PNG_NO_ASSEMBLER_CODE to PNG_NO_MMX_CODE in scripts, like 1.4.0beta
-
-Version 1.2.15beta5 [December 7, 2006]
- Changed some instances of PNG_ASSEMBLER_* to PNG_MMX_* in pnggccrd.c
- Revised scripts/CMakeLists.txt
-
-Version 1.2.15beta6 [December 13, 2006]
- Revised scripts/CMakeLists.txt and configure.ac
-
-Version 1.2.15rc1 [December 18, 2006]
- Revised scripts/CMakeLists.txt
-
-Version 1.2.15rc2 [December 21, 2006]
- Added conditional #undef jmpbuf in pngtest.c to undo #define in AIX headers.
- Added scripts/makefile.nommx
-
-Version 1.2.15rc3 [December 25, 2006]
- Fixed shared library numbering error that was introduced in 1.2.15beta6.
-
-Version 1.2.15rc4 [December 27, 2006]
- Fixed handling of rgb_to_gray when png_ptr->color.gray isn't set.
-
-Version 1.2.15rc5 [December 31, 2006]
- Revised handling of rgb_to_gray.
-
-Version 1.2.15 [January 5, 2007]
- Added some (unsigned long) typecasts in pngtest.c to avoid printing errors.
-
-Version 1.2.16beta1 [January 6, 2007]
- Fix bugs in makefile.nommx
-
-Version 1.2.16beta2 [January 16, 2007]
- Revised scripts/CMakeLists.txt
-
-Version 1.2.16 [January 31, 2007]
- No changes.
-
-Version 1.2.17beta1 [March 6, 2007]
- Revised scripts/CMakeLists.txt to install both shared and static libraries.
- Deleted a redundant line from pngset.c.
-
-Version 1.2.17beta2 [April 26, 2007]
- Relocated misplaced test for png_ptr == NULL in pngpread.c
- Change "==" to "&" for testing PNG_RGB_TO_GRAY_ERR & PNG_RGB_TO_GRAY_WARN
- flags.
- Changed remaining instances of PNG_ASSEMBLER_* to PNG_MMX_*
- Added pngerror() when write_IHDR fails in deflateInit2().
- Added "const" to some array declarations.
- Mention examples of libpng usage in the libpng*.txt and libpng.3 documents.
-
-Version 1.2.17rc1 [May 4, 2007]
- No changes.
-
-Version 1.2.17rc2 [May 8, 2007]
- Moved several PNG_HAVE_* macros out of PNG_INTERNAL because applications
- calling set_unknown_chunk_location() need them.
- Changed transformation flag from PNG_EXPAND_tRNS to PNG_EXPAND in
- png_set_expand_gray_1_2_4_to_8().
- Added png_ptr->unknown_chunk to hold working unknown chunk data, so it
- can be free'ed in case of error. Revised unknown chunk handling in
- pngrutil.c and pngpread.c to use this structure.
-
-Version 1.2.17rc3 [May 8, 2007]
- Revised symbol-handling in configure script.
-
-Version 1.2.17rc4 [May 10, 2007]
- Revised unknown chunk handling to avoid storing unknown critical chunks.
-
-Version 1.0.25 [May 15, 2007]
-Version 1.2.17 [May 15, 2007]
- Added "png_ptr->num_trans=0" before error return in png_handle_tRNS,
- to eliminate a vulnerability (CVE-2007-2445, CERT VU#684664)
-
-Version 1.0.26 [May 15, 2007]
-Version 1.2.18 [May 15, 2007]
- Reverted the libpng-1.2.17rc3 change to symbol-handling in configure script
-
-Version 1.2.19beta1 [May 18, 2007]
- Changed "const static" to "static PNG_CONST" everywhere, mostly undoing
- change of libpng-1.2.17beta2. Changed other "const" to "PNG_CONST"
- Changed some handling of unused parameters, to avoid compiler warnings.
- "if (unused == NULL) return;" becomes "unused = unused".
-
-Version 1.2.19beta2 [May 18, 2007]
- Only use the valid bits of tRNS value in png_do_expand() (Brian Cartier)
-
-Version 1.2.19beta3 [May 19, 2007]
- Add some "png_byte" typecasts in png_check_keyword() and write new_key
- instead of key in zTXt chunk (Kevin Ryde).
-
-Version 1.2.19beta4 [May 21, 2007]
- Add png_snprintf() function and use it in place of sprint() for improved
- defense against buffer overflows.
-
-Version 1.2.19beta5 [May 21, 2007]
- Fixed png_handle_tRNS() to only use the valid bits of tRNS value.
- Changed handling of more unused parameters, to avoid compiler warnings.
- Removed some PNG_CONST in pngwutil.c to avoid compiler warnings.
-
-Version 1.2.19beta6 [May 22, 2007]
- Added some #ifdef PNG_MMX_CODE_SUPPORTED where needed in pngvcrd.c
- Added a special "_MSC_VER" case that defines png_snprintf to _snprintf
-
-Version 1.2.19beta7 [May 22, 2007]
- Squelched png_squelch_warnings() in pnggccrd.c and added
- an #ifdef PNG_MMX_CODE_SUPPORTED block around the declarations that caused
- the warnings that png_squelch_warnings was squelching.
-
-Version 1.2.19beta8 [May 22, 2007]
- Removed __MMX__ from test in pngconf.h.
-
-Version 1.2.19beta9 [May 23, 2007]
- Made png_squelch_warnings() available via PNG_SQUELCH_WARNINGS macro.
- Revised png_squelch_warnings() so it might work.
- Updated makefile.sgcc and makefile.solaris; added makefile.solaris-x86.
-
-Version 1.2.19beta10 [May 24, 2007]
- Resquelched png_squelch_warnings(), use "__attribute__((used))" instead.
-
-Version 1.4.0beta1 [April 20, 2006]
- Enabled iTXt support (changes png_struct, thus requires so-number change).
- Cleaned up PNG_ASSEMBLER_CODE_SUPPORTED vs PNG_MMX_CODE_SUPPORTED
- Eliminated PNG_1_0_X and PNG_1_2_X macros.
- Removed deprecated functions png_read_init, png_write_init, png_info_init,
- png_permit_empty_plte, png_set_gray_1_2_4_to_8, png_check_sig, and
- removed the deprecated macro PNG_MAX_UINT.
- Moved "PNG_INTERNAL" parts of png.h and pngconf.h into pngintrn.h
- Removed many WIN32_WCE #ifdefs (Cosmin).
- Reduced dependency on C-runtime library when on Windows (Simon-Pierre)
- Replaced sprintf() with png_sprintf() (Simon-Pierre)
-
-Version 1.4.0beta2 [April 20, 2006]
- Revised makefiles and configure to avoid making links to libpng.so.*
- Moved some leftover MMX-related defines from pngconf.h to pngintrn.h
- Updated scripts/pngos2.def, pngw32.def, and projects/wince/png32ce.def
-
-Version 1.4.0beta3 [May 10, 2006]
- Updated scripts/pngw32.def to comment out MMX functions.
- Added PNG_NO_GET_INT_32 and PNG_NO_SAVE_INT_32 macros.
- Scripts/libpng.pc.in contained "configure" style version info and would
- not work with makefiles.
- Revised pngconf.h and added pngconf.h.in, so makefiles and configure can
- pass defines to libpng and applications.
-
-Version 1.4.0beta4 [May 11, 2006]
- Revised configure.ac, Makefile.am, and many of the makefiles to write
- their defines in pngconf.h.
-
-Version 1.4.0beta5 [May 15, 2006]
- Added a missing semicolon in Makefile.am and Makefile.in
- Deleted extraneous square brackets from configure.ac
-
-Version 1.4.0beta6 [June 2, 2006]
- Increased sprintf buffer from 50 to 52 chars in pngrutil.c to avoid
- buffer overflow.
- Changed sonum from 0 to 1.
- Removed unused prototype for png_check_sig() from png.h
-
-Version 1.4.0beta7 [June 16, 2006]
- Exported png_write_sig (Cosmin).
- Optimized buffer in png_handle_cHRM() (Cosmin).
- Set pHYs = 2835 x 2835 pixels per meter, and added
- sCAL = 0.352778e-3 x 0.352778e-3 meters, in pngtest.png (Cosmin).
- Added png_set_benign_errors(), png_benign_error(), png_chunk_benign_error().
- Added typedef for png_int_32 and png_uint_32 on 64-bit systems.
- Added "(unsigned long)" typecast on png_uint_32 variables in printf lists.
-
-Version 1.4.0beta8 [June 22, 2006]
- Added demonstration of user chunk support in pngtest.c, to support the
- public sTER chunk and a private vpAg chunk.
-
-Version 1.4.0beta9 [July 3, 2006]
- Removed ordinals from scripts/pngw32.def and removed png_info_int and
- png_set_gray_1_2_4_to_8 entries.
- Inline call of png_get_uint_32() in png_get_uint_31().
- Use png_get_uint_31() to get vpAg width and height in pngtest.c
- Removed WINCE and Netware projects.
- Removed standalone Y2KINFO file.
-
-Version 1.4.0beta10 [July 12, 2006]
- Eliminated automatic copy of pngconf.h to pngconf.h.in from configure and
- some makefiles, because it was not working reliably. Instead, distribute
- pngconf.h.in along with pngconf.h and cause configure and some of the
- makefiles to update pngconf.h from pngconf.h.in.
- Added pngconf.h to DEPENDENCIES in Makefile.am
-
-Version 1.4.0beta11 [August 19, 2006]
- Removed AC_FUNC_MALLOC from configure.ac.
- Added a warning when writing iCCP profile with mismatched profile length.
- Patched pnggccrd.c to assemble on x86_64 platforms.
- Moved chunk header reading into a separate function png_read_chunk_header()
- in pngrutil.c. The chunk header (len+sig) is now serialized in a single
- operation (Cosmin).
- Implemented support for I/O states. Added png_ptr member io_state, and
- functions png_get_io_chunk_name() and png_get_io_state() in pngget.c
- (Cosmin).
- Added png_get_io_chunk_name and png_get_io_state to scripts/*.def (Cosmin).
- Renamed scripts/pngw32.* to scripts/pngwin.* (Cosmin).
- Removed the include directories and libraries from CFLAGS and LDFLAGS
- in scripts/makefile.gcc (Cosmin).
- Used png_save_uint_32() to set vpAg width and height in pngtest.c (Cosmin).
- Cast to proper type when getting/setting vpAg units in pngtest.c (Cosmin).
- Added pngintrn.h to the Visual C++ projects (Cosmin).
- Removed scripts/list (Cosmin).
- Updated copyright year in scripts/pngwin.def (Cosmin).
- Removed PNG_TYPECAST_NULL and used standard NULL consistently (Cosmin).
- Disallowed the user to redefine png_size_t, and enforced a consistent use
- of png_size_t across libpng (Cosmin).
- Changed the type of png_ptr->rowbytes, PNG_ROWBYTES() and friends
- to png_size_t (Cosmin).
- Removed png_convert_size() and replaced png_sizeof with sizeof (Cosmin).
- Removed some unnecessary type casts (Cosmin).
- Changed prototype of png_get_compression_buffer_size() and
- png_set_compression_buffer_size() to work with png_size_t instead of
- png_uint_32 (Cosmin).
- Removed png_memcpy_check() and png_memset_check() (Cosmin).
- Fixed a typo (png_byte --> png_bytep) in libpng.3 and libpng.txt (Cosmin).
- Clarified that png_zalloc() does not clear the allocated memory,
- and png_zalloc() and png_zfree() cannot be PNGAPI (Cosmin).
- Renamed png_mem_size_t to png_alloc_size_t, fixed its definition in
- pngconf.h, and used it in all memory allocation functions (Cosmin).
- Renamed pngintrn.h to pngpriv.h, added a comment at the top of the file
- mentioning that the symbols declared in that file are private, and
- updated the scripts and the Visual C++ projects accordingly (Cosmin).
- Removed circular references between pngconf.h and pngconf.h.in in
- scripts/makefile.vc*win32 (Cosmin).
- Removing trailing '.' from the warning and error messages (Cosmin).
- Added pngdefs.h that is built by makefile or configure, instead of
- pngconf.h.in (Glenn).
- Detect and fix attempt to write wrong iCCP profile length.
-
-Version 1.4.0beta12 [October 19, 2006]
- Changed "logical" to "bitwise" in the documentation.
- Work around Intel-Mac compiler bug by setting PNG_NO_MMX_CODE in pngconf.h
- Add a typecast to stifle compiler warning in pngrutil.c
-
-Version 1.4.0beta13 [November 10, 2006]
- Fix potential buffer overflow in sPLT chunk handler.
- Fix Makefile.am to not try to link to noexistent files.
-
-Version 1.4.0beta14 [November 15, 2006]
- Check all exported functions for NULL png_ptr.
-
-Version 1.4.0beta15 [November 17, 2006]
- Relocated two misplaced tests for NULL png_ptr.
- Built Makefile.in with automake-1.9.6 instead of 1.9.2.
- Build configure with autoconf-2.60 instead of 2.59
- Add "install: all" in Makefile.am so "configure; make install" will work.
-
-Version 1.4.0beta16 [November 17, 2006]
- Added a typecast in png_zalloc().
-
-Version 1.4.0beta17 [December 4, 2006]
- Changed "new_key[79] = '\0';" to "(*new_key)[79] = '\0';" in pngwutil.c
- Add "png_bytep" typecast to profile while calculating length in pngwutil.c
-
-Version 1.4.0beta18 [December 7, 2006]
- Added scripts/CMakeLists.txt
-
-Version 1.4.0beta19 [May 16, 2007]
- Revised scripts/CMakeLists.txt
- Rebuilt configure and Makefile.in with newer tools.
- Added conditional #undef jmpbuf in pngtest.c to undo #define in AIX headers.
- Added scripts/makefile.nommx
-
-Version 1.4.0beta20 [July 9, 2008]
- Moved several PNG_HAVE_* macros from pngpriv.h to png.h because applications
- calling set_unknown_chunk_location() need them.
- Moved several macro definitions from pngpriv.h to pngconf.h
- Merge with changes to the 1.2.X branch, as of 1.2.30beta04.
- Deleted all use of the MMX assembler code and Intel-licensed optimizations.
- Revised makefile.mingw
-
-Version 1.4.0beta21 [July 21, 2008]
- Moved local array "chunkdata" from pngrutil.c to the png_struct, so
- it will be freed by png_read_destroy() in case of a read error (Kurt
- Christensen).
-
-Version 1.4.0beta22 [July 21, 2008]
- Change "purpose" and "buffer" to png_ptr->chunkdata to avoid memory leaking.
-
-Version 1.4.0beta23 [July 22, 2008]
- Change "chunkdata = NULL" to "png_ptr->chunkdata = NULL" several places in
- png_decompress_chunk().
-
-Version 1.4.0beta24 [July 25, 2008]
- Change all remaining "chunkdata" to "png_ptr->chunkdata" in
- png_decompress_chunk(), and remove "chunkdata" from parameter list.
- Put a call to png_check_chunk_name() in png_read_chunk_header().
- Revised png_check_chunk_name() to reject a name with a lowercase 3rd byte.
- Removed two calls to png_check_chunk_name() occurring later in the process.
- Define PNG_NO_ERROR_NUMBERS by default in pngconf.h
-
-Version 1.4.0beta25 [July 30, 2008]
- Added a call to png_check_chunk_name() in pngpread.c
- Reverted png_check_chunk_name() to accept a name with a lowercase 3rd byte.
- Added png_push_have_buffer() function to pngpread.c
- Eliminated PNG_BIG_ENDIAN_SUPPORTED and associated png_get_* macros.
- Made inline expansion of png_get_*() optional with PNG_USE_READ_MACROS.
- Eliminated all PNG_USELESS_TESTS and PNG_CORRECT_PALETTE_SUPPORTED code.
- Synced contrib directory and configure files with libpng-1.2.30beta06.
- Eliminated no-longer-used pngdefs.h (but it's still built in the makefiles)
- Relocated a misplaced "#endif /* PNG_NO_WRITE_FILTER */" in pngwutil.c
-
-Version 1.4.0beta26 [August 4, 2008]
- Removed png_push_have_buffer() function in pngpread.c. It increased the
- compiled library size slightly.
- Changed "-Wall" to "-W -Wall" in the CFLAGS in all makefiles (Cosmin Truta)
- Declared png_ptr "volatile" in pngread.c and pngwrite.c to avoid warnings.
- Updated contrib/visupng/cexcept.h to version 2.0.1
- Added PNG_LITERAL_CHARACTER macros for #, [, and ].
-
-Version 1.4.0beta27 [August 5, 2008]
- Revised usage of PNG_LITERAL_SHARP in pngerror.c.
- Moved newline character from individual png_debug messages into the
- png_debug macros.
- Allow user to #define their own png_debug, png_debug1, and png_debug2.
-
-Version 1.4.0beta28 [August 5, 2008]
- Revised usage of PNG_LITERAL_SHARP in pngerror.c.
- Added PNG_STRING_NEWLINE macro
-
-Version 1.4.0beta29 [August 9, 2008]
- Revised usage of PNG_STRING_NEWLINE to work on non-ISO compilers.
- Added PNG_STRING_COPYRIGHT macro.
- Added non-ISO versions of png_debug macros.
-
-Version 1.4.0beta30 [August 14, 2008]
- Added premultiplied alpha feature (Volker Wiendl).
-
-Version 1.4.0beta31 [August 18, 2008]
- Moved png_set_premultiply_alpha from pngtrans.c to pngrtran.c
- Removed extra crc check at the end of png_handle_cHRM(). Bug introduced
- in libpng-1.4.0beta20.
-
-Version 1.4.0beta32 [August 19, 2008]
- Added PNG_WRITE_FLUSH_SUPPORTED block around new png_flush() call.
- Revised PNG_NO_STDIO version of png_write_flush()
-
-Version 1.4.0beta33 [August 20, 2008]
- Added png_get|set_chunk_cache_max() to limit the total number of sPLT,
- text, and unknown chunks that can be stored.
-
-Version 1.4.0beta34 [September 6, 2008]
- Shortened tIME_string to 29 bytes in pngtest.c
- Fixed off-by-one error introduced in png_push_read_zTXt() function in
- libpng-1.2.30beta04/pngpread.c (Harald van Dijk)
-
-Version 1.4.0beta35 [October 6, 2008]
- Changed "trans_values" to "trans_color".
- Changed so-number from 0 to 14. Some OS do not like 0.
- Revised makefile.darwin to fix shared library numbering.
- Change png_set_gray_1_2_4_to_8() to png_set_expand_gray_1_2_4_to_8()
- in example.c (debian bug report)
-
-Version 1.4.0beta36 [October 25, 2008]
- Sync with tEXt vulnerability fix in libpng-1.2.33rc02.
-
-Version 1.4.0beta37 [November 13, 2008]
- Added png_check_cHRM in png.c and moved checking from pngget.c, pngrutil.c,
- and pngwrite.c
-
-Version 1.4.0beta38 [November 22, 2008]
- Added check for zero-area RGB cHRM triangle in png_check_cHRM() and
- png_check_cHRM_fixed().
-
-Version 1.4.0beta39 [November 23, 2008]
- Revised png_warning() to write its message on standard output by default
- when warning_fn is NULL.
-
-Version 1.4.0beta40 [November 24, 2008]
- Eliminated png_check_cHRM(). Instead, always use png_check_cHRM_fixed().
- In png_check_cHRM_fixed(), ensure white_y is > 0, and removed redundant
- check for all-zero coordinates that is detected by the triangle check.
-
-Version 1.4.0beta41 [November 26, 2008]
- Fixed string vs pointer-to-string error in png_check_keyword().
- Rearranged test expressions in png_check_cHRM_fixed() to avoid internal
- overflows.
- Added PNG_NO_CHECK_cHRM conditional.
-
-Version 1.4.0beta42, 43 [December 1, 2008]
- Merge png_debug with version 1.2.34beta04.
-
-Version 1.4.0beta44 [December 6, 2008]
- Removed redundant check for key==NULL before calling png_check_keyword()
- to ensure that new_key gets initialized and removed extra warning
- (Merge with version 1.2.34beta05 -- Arvan Pritchard).
-
-Version 1.4.0beta45 [December 9, 2008]
- In png_write_png(), respect the placement of the filler bytes in an earlier
- call to png_set_filler() (Jim Barry).
-
-Version 1.4.0beta46 [December 10, 2008]
- Undid previous change and added PNG_TRANSFORM_STRIP_FILLER_BEFORE and
- PNG_TRANSFORM_STRIP_FILLER_AFTER conditionals and deprecated
- PNG_TRANSFORM_STRIP_FILLER (Jim Barry).
-
-Version 1.4.0beta47 [December 15, 2008]
- Support for dithering was disabled by default, because it has never
- been well tested and doesn't work very well. The code has not
- been removed, however, and can be enabled by building libpng with
- PNG_READ_DITHER_SUPPORTED defined.
-
-Version 1.4.0beta48 [February 14, 2009]
- Added new exported function png_calloc().
- Combined several instances of png_malloc(); png_memset() into png_calloc().
- Removed prototype for png_freeptr() that was added in libpng-1.4.0beta24
- but was never defined.
-
-Version 1.4.0beta49 [February 28, 2009]
- Added png_fileno() macro to pngconf.h, used in pngwio.c
- Corrected order of #ifdef's in png_debug definition in png.h
- Fixed bug introduced in libpng-1.4.0beta48 with the memset arguments
- for pcal_params.
- Fixed order of #ifdef directives in the png_debug defines in png.h
- (bug introduced in libpng-1.2.34/1.4.0beta29).
- Revised comments in png_set_read_fn() and png_set_write_fn().
-
-Version 1.4.0beta50 [March 18, 2009]
- Use png_calloc() instead of png_malloc() to allocate big_row_buf when
- reading an interlaced file, to avoid a possible UMR.
- Undid revision of PNG_NO_STDIO version of png_write_flush(). Users
- having trouble with fflush() can build with PNG_NO_WRITE_FLUSH defined
- or supply their own flush_fn() replacement.
- Revised libpng*.txt and png.h documentation about use of png_write_flush()
- and png_set_write_fn().
- Removed fflush() from pngtest.c.
- Added "#define PNG_NO_WRITE_FLUSH" to contrib/pngminim/encoder/pngusr.h
-
-Version 1.4.0beta51 [March 21, 2009]
- Removed new png_fileno() macro from pngconf.h .
-
-Version 1.4.0beta52 [March 27, 2009]
- Relocated png_do_chop() ahead of building gamma tables in pngrtran.c
- This avoids building 16-bit gamma tables unnecessarily.
- Removed fflush() from pngtest.c.
- Added "#define PNG_NO_WRITE_FLUSH" to contrib/pngminim/encoder/pngusr.h
- Added a section on differences between 1.0.x and 1.2.x to libpng.3/libpng.txt
-
-Version 1.4.0beta53 [April 1, 2009]
- Removed some remaining MMX macros from pngpriv.h
- Fixed potential memory leak of "new_name" in png_write_iCCP() (Ralph Giles)
-
-Version 1.4.0beta54 [April 13, 2009]
- Added "ifndef PNG_SKIP_SETJMP_CHECK" block in pngconf.h to allow
- application code writers to bypass the check for multiple inclusion
- of setjmp.h when they know that it is safe to ignore the situation.
- Eliminated internal use of setjmp() in pngread.c and pngwrite.c
- Reordered ancillary chunks in pngtest.png to be the same as what
- pngtest now produces, and made some cosmetic changes to pngtest output.
- Eliminated deprecated png_read_init_3() and png_write_init_3() functions.
-
-Version 1.4.0beta55 [April 15, 2009]
- Simplified error handling in pngread.c and pngwrite.c by putting
- the new png_read_cleanup() and png_write_cleanup() functions inline.
-
-Version 1.4.0beta56 [April 25, 2009]
- Renamed "user_chunk_data" to "my_user_chunk_data" in pngtest.c to suppress
- "shadowed declaration" warning from gcc-4.3.3.
- Renamed "gamma" to "png_gamma" in pngset.c to avoid "shadowed declaration"
- warning about a global "gamma" variable in math.h on some platforms.
-
-Version 1.4.0beta57 [May 2, 2009]
- Removed prototype for png_freeptr() that was added in libpng-1.4.0beta24
- but was never defined (again).
- Rebuilt configure scripts with autoconf-2.63 instead of 2.62
- Removed pngprefs.h and MMX from makefiles
-
-Version 1.4.0beta58 [May 14, 2009]
- Changed pngw32.def to pngwin.def in makefile.mingw (typo was introduced
- in beta57).
- Clarified usage of sig_bit versus sig_bit_p in example.c (Vincent Torri)
-
-Version 1.4.0beta59 [May 15, 2009]
- Reformated sources in libpng style (3-space intentation, comment format)
- Fixed typo in libpng docs (PNG_FILTER_AVE should be PNG_FILTER_AVG)
- Added sections about the git repository and our coding style to the
- documentation
- Relocated misplaced #endif in pngwrite.c, sCAL chunk handler.
-
-Version 1.4.0beta60 [May 19, 2009]
- Conditionally compile png_read_finish_row() which is not used by
- progressive readers.
- Added contrib/pngminim/preader to demonstrate building minimal progressive
- decoder, based on contrib/gregbook with embedded libpng and zlib.
-
-Version 1.4.0beta61 [May 20, 2009]
- In contrib/pngminim/*, renamed "makefile.std" to "makefile", since there
- is only one makefile in those directories, and revised the README files
- accordingly.
- More reformatting of comments, mostly to capitalize sentences.
-
-Version 1.4.0beta62 [June 2, 2009]
- Added "#define PNG_NO_WRITE_SWAP" to contrib/pngminim/encoder/pngusr.h
- and "define PNG_NO_READ_SWAP" to decoder/pngusr.h and preader/pngusr.h
- Reformatted several remaining "else statement" into two lines.
- Added a section to the libpng documentation about using png_get_io_ptr()
- in configure scripts to detect the presence of libpng.
-
-Version 1.4.0beta63 [June 15, 2009]
- Revised libpng*.txt and libpng.3 to mention calling png_set_IHDR()
- multiple times and to specify the sample order in the tRNS chunk,
- because the ISO PNG specification has a typo in the tRNS table.
- Changed several PNG_UNKNOWN_CHUNK_SUPPORTED to
- PNG_HANDLE_AS_UNKNOWN_SUPPORTED, to make the png_set_keep mechanism
- available for ignoring known chunks even when not saving unknown chunks.
- Adopted preference for consistent use of "#ifdef" and "#ifndef" versus
- "#if defined()" and "if !defined()" where possible.
-
-Version 1.4.0beta64 [June 24, 2009]
- Eliminated PNG_LEGACY_SUPPORTED code.
- Moved the various unknown chunk macro definitions outside of the
- PNG_READ|WRITE_ANCILLARY_CHUNK_SUPPORTED blocks.
-
-Version 1.4.0beta65 [June 26, 2009]
- Added a reference to the libpng license in each file.
-
-Version 1.4.0beta66 [June 27, 2009]
- Refer to the libpng license instead of the libpng license in each file.
-
-Version 1.4.0beta67 [July 6, 2009]
- Relocated INVERT_ALPHA within png_read_png() and png_write_png().
- Added high-level API transform PNG_TRANSFORM_GRAY_TO_RGB.
- Added an "xcode" project to the projects directory (Alam Arias).
-
-Version 1.4.0beta68 [July 19, 2009]
- Avoid some tests in filter selection in pngwutil.c
-
-Version 1.4.0beta69 [July 25, 2009]
- Simplified the new filter-selection test. This runs faster in the
- common "PNG_ALL_FILTERS" and PNG_FILTER_NONE cases.
- Removed extraneous declaration from the new call to png_read_gray_to_rgb()
- (bug introduced in libpng-1.4.0beta67).
- Fixed up xcode project (Alam Arias)
- Added a prototype for png_64bit_product() in png.c
-
-Version 1.4.0beta70 [July 27, 2009]
- Avoid a possible NULL dereference in debug build, in png_set_text_2().
- (bug introduced in libpng-0.95, discovered by Evan Rouault)
-
-Version 1.4.0beta71 [July 29, 2009]
- Rebuilt configure scripts with autoconf-2.64.
-
-Version 1.4.0beta72 [August 1, 2009]
- Replaced *.tar.lzma with *.tar.xz in distribution. Get the xz codec
- from <http://tukaani.org/xz>.
-
-Version 1.4.0beta73 [August 1, 2009]
- Reject attempt to write iCCP chunk with negative embedded profile length
- (JD Chen) (CVE-2009-5063).
-
-Version 1.4.0beta74 [August 8, 2009]
- Changed png_ptr and info_ptr member "trans" to "trans_alpha".
-
-Version 1.4.0beta75 [August 21, 2009]
- Removed an extra png_debug() recently added to png_write_find_filter().
- Fixed incorrect #ifdef in pngset.c regarding unknown chunk support.
-
-Version 1.4.0beta76 [August 22, 2009]
- Moved an incorrectly located test in png_read_row() in pngread.c
-
-Version 1.4.0beta77 [August 27, 2009]
- Removed lpXYZ.tar.bz2 (with CRLF), KNOWNBUG, libpng-x.y.z-KNOWNBUG.txt,
- and the "noconfig" files from the distribution.
- Moved CMakeLists.txt from scripts into the main libpng directory.
- Various bugfixes and improvements to CMakeLists.txt (Philip Lowman)
-
-Version 1.4.0beta78 [August 31, 2009]
- Converted all PNG_NO_* tests to PNG_*_SUPPORTED everywhere except pngconf.h
- Eliminated PNG_NO_FREE_ME and PNG_FREE_ME_SUPPORTED macros.
- Use png_malloc plus a loop instead of png_calloc() to initialize
- row_pointers in png_read_png().
-
-Version 1.4.0beta79 [September 1, 2009]
- Eliminated PNG_GLOBAL_ARRAYS and PNG_LOCAL_ARRAYS; always use local arrays.
- Eliminated PNG_CALLOC_SUPPORTED macro and always provide png_calloc().
-
-Version 1.4.0beta80 [September 17, 2009]
- Removed scripts/libpng.icc
- Changed typecast of filler from png_byte to png_uint_16 in png_set_filler().
- (Dennis Gustafsson)
- Fixed typo introduced in beta78 in pngtest.c ("#if def " should be "#ifdef ")
-
-Version 1.4.0beta81 [September 23, 2009]
- Eliminated unused PNG_FLAG_FREE_* defines from pngpriv.h
- Expanded TAB characters in pngrtran.c
- Removed PNG_CONST from all "PNG_CONST PNG_CHNK" declarations to avoid
- compiler complaints about doubly declaring things "const".
- Changed all "#if [!]defined(X)" to "if[n]def X" where possible.
- Eliminated unused png_ptr->row_buf_size
-
-Version 1.4.0beta82 [September 25, 2009]
- Moved redundant IHDR checking into new png_check_IHDR() in png.c
- and report all errors found in the IHDR data.
- Eliminated useless call to png_check_cHRM() from pngset.c
-
-Version 1.4.0beta83 [September 25, 2009]
- Revised png_check_IHDR() to eliminate bogus complaint about filter_type.
-
-Version 1.4.0beta84 [September 30, 2009]
- Fixed some inconsistent indentation in pngconf.h
- Revised png_check_IHDR() to add a test for width variable less than 32-bit.
-
-Version 1.4.0beta85 [October 1, 2009]
- Revised png_check_IHDR() again, to check info_ptr members instead of
- the contents of the returned parameters.
-
-Version 1.4.0beta86 [October 9, 2009]
- Updated the "xcode" project (Alam Arias).
- Eliminated a shadowed declaration of "pp" in png_handle_sPLT().
-
-Version 1.4.0rc01 [October 19, 2009]
- Trivial cosmetic changes.
-
-Version 1.4.0beta87 [October 30, 2009]
- Moved version 1.4.0 back into beta.
-
-Version 1.4.0beta88 [October 30, 2009]
- Revised libpng*.txt section about differences between 1.2.x and 1.4.0
- because most of the new features have now been ported back to 1.2.41
-
-Version 1.4.0beta89 [November 1, 2009]
- More bugfixes and improvements to CMakeLists.txt (Philip Lowman)
- Removed a harmless extra png_set_invert_alpha() from pngwrite.c
- Apply png_user_chunk_cache_max within png_decompress_chunk().
- Merged libpng-1.2.41.txt with libpng-1.4.0.txt where appropriate.
-
-Version 1.4.0beta90 [November 2, 2009]
- Removed all remaining WIN32_WCE #ifdefs except those involving the
- time.h "tm" structure
-
-Version 1.4.0beta91 [November 3, 2009]
- Updated scripts/pngw32.def and projects/wince/png32ce.def
- Copied projects/wince/png32ce.def to the scripts directory.
- Added scripts/makefile.wce
- Patched ltmain.sh for wince support.
- Added PNG_CONVERT_tIME_SUPPORTED macro.
-
-Version 1.4.0beta92 [November 4, 2009]
- Make inclusion of time.h in pngconf.h depend on PNG_CONVERT_tIME_SUPPORTED
- Make #define PNG_CONVERT_tIME_SUPPORTED depend on PNG_WRITE_tIME_SUPPORTED
- Revised libpng*.txt to describe differences from 1.2.40 to 1.4.0 (instead
- of differences from 1.2.41 to 1.4.0)
-
-Version 1.4.0beta93 [November 7, 2009]
- Added PNG_DEPSTRUCT, PNG_DEPRECATED, PNG_USE_RESULT, PNG_NORETURN, and
- PNG_ALLOCATED macros to detect deprecated direct access to the
- png_struct or info_struct members and other deprecated usage in
- applications (John Bowler).
- Updated scripts/makefile* to add "-DPNG_CONFIGURE_LIBPNG" to CFLAGS,
- to prevent warnings about direct access to png structs by libpng
- functions while building libpng. They need to be tested, especially
- those using compilers other than gcc.
- Updated projects/visualc6 and visualc71 with "/d PNG_CONFIGURE_LIBPNG".
- They should work but still need to be updated to remove
- references to pnggccrd.c or pngvcrd.c and ASM building.
- Added README.txt to the beos, cbuilder5, netware, and xcode projects warning
- that they need to be updated, to remove references to pnggccrd.c and
- pngvcrd.c and to depend on pngpriv.h
- Removed three direct references to read_info_ptr members in pngtest.c
- that were detected by the new PNG_DEPSTRUCT macro.
- Moved the png_debug macro definitions and the png_read_destroy(),
- png_write_destroy() and png_far_to_near() prototypes from png.h
- to pngpriv.h (John Bowler)
- Moved the synopsis lines for png_read_destroy(), png_write_destroy()
- png_debug(), png_debug1(), and png_debug2() from libpng.3 to libpngpf.3.
-
-Version 1.4.0beta94 [November 9, 2009]
- Removed the obsolete, unused pnggccrd.c and pngvcrd.c files.
- Updated CMakeLists.txt to add "-DPNG_CONFIGURE_LIBPNG" to the definitions.
- Removed dependency of pngtest.o on pngpriv.h in the makefiles.
- Only #define PNG_DEPSTRUCT, etc. in pngconf.h if not already defined.
-
-Version 1.4.0beta95 [November 10, 2009]
- Changed png_check_sig() to !png_sig_cmp() in contrib programs.
- Added -DPNG_CONFIGURE_LIBPNG to contrib/pngminm/*/makefile
- Changed png_check_sig() to !png_sig_cmp() in contrib programs.
- Corrected the png_get_IHDR() call in contrib/gregbook/readpng2.c
- Changed pngminim/*/gather.sh to stop trying to remove pnggccrd.c and pngvcrd.c
- Added dependency on pngpriv.h in contrib/pngminim/*/makefile
-
-Version 1.4.0beta96 [November 12, 2009]
- Renamed scripts/makefile.wce to scripts/makefile.cegcc
- Revised Makefile.am to use libpng.sys while building libpng.so
- so that only PNG_EXPORT functions are exported.
- Removed the deprecated png_check_sig() function/macro.
- Removed recently removed function names from scripts/*.def
- Revised pngtest.png to put chunks in the same order written by pngtest
- (evidently the same change made in libpng-1.0beta54 was lost).
- Added PNG_PRIVATE macro definition in pngconf.h for possible future use.
-
-Version 1.4.0beta97 [November 13, 2009]
- Restored pngtest.png to the libpng-1.4.0beta7 version.
- Removed projects/beos and netware.txt; no one seems to be supporting them.
- Revised Makefile.in
-
-Version 1.4.0beta98 [November 13, 2009]
- Added the "xcode" project to zip distributions,
- Fixed a typo in scripts/pngwin.def introduced in beta97.
-
-Version 1.4.0beta99 [November 14, 2009]
- Moved libpng-config.in and libpng.pc-configure.in out of the scripts
- directory, to libpng-config.in and libpng-pc.in, respectively, and
- modified Makefile.am and configure.ac accordingly. Now "configure"
- needs nothing from the "scripts" directory.
- Avoid redefining PNG_CONST in pngconf.h
-
-Version 1.4.0beta100 [November 14, 2009]
- Removed ASM builds from projects/visualc6 and projects/visualc71
- Removed scripts/makefile.nommx and makefile.vcawin32
- Revised CMakeLists.txt to account for new location of libpng-config.in
- and libpng-pc.in
- Updated INSTALL to reflect removal and relocation of files.
-
-Version 1.4.0beta101 [November 14, 2009]
- Restored the binary files (*.jpg, *.png, some project files) that were
- accidentally deleted from the zip and 7z distributions when the xcode
- project was added.
-
-Version 1.4.0beta102 [November 18, 2009]
- Added libpng-config.in and libpng-pc.in to the zip and 7z distributions.
- Fixed a typo in projects/visualc6/pngtest.dsp, introduced in beta100.
- Moved descriptions of makefiles and other scripts out of INSTALL into
- scripts/README.txt
- Updated the copyright year in scripts/pngwin.rc from 2006 to 2009.
-
-Version 1.4.0beta103 [November 21, 2009]
- Removed obsolete comments about ASM from projects/visualc71/README_zlib.txt
- Align row_buf on 16-byte boundary in memory.
- Restored the PNG_WRITE_FLUSH_AFTER_IEND_SUPPORTED guard around the call
- to png_flush() after png_write_IEND(). See 1.4.0beta32, 1.4.0beta50
- changes above and 1.2.30, 1.2.30rc01 and rc03 in 1.2.41 CHANGES. Someone
- needs this feature.
- Make the 'png_jmpbuf' macro expand to a call that records the correct
- longjmp function as well as returning a pointer to the setjmp
- jmp_buf buffer, and marked direct access to jmpbuf 'deprecated'.
- (John Bowler)
-
-Version 1.4.0beta104 [November 22, 2009]
- Removed png_longjmp_ptr from scripts/*.def and libpng.3
- Rebuilt configure scripts with autoconf-2.65
-
-Version 1.4.0beta105 [November 25, 2009]
- Use fast integer PNG_DIVIDE_BY_255() or PNG_DIVIDE_BY_65535()
- to accomplish alpha premultiplication when
- PNG_READ_COMPOSITE_NODIV_SUPPORTED is defined.
- Changed "/255" to "/255.0" in background calculations to make it clear
- that the 255 is used as a double.
-
-Version 1.4.0beta106 [November 27, 2009]
- Removed premultiplied alpha feature.
-
-Version 1.4.0beta107 [December 4, 2009]
- Updated README
- Added "#define PNG_NO_PEDANTIC_WARNINGS" in the libpng source files.
- Removed "-DPNG_CONFIGURE_LIBPNG" from the makefiles and projects.
- Revised scripts/makefile.netbsd, makefile.openbsd, and makefile.sco
- to put png.h and pngconf.h in $prefix/include, like the other scripts,
- instead of in $prefix/include/libpng. Also revised makefile.sco
- to put them in $prefix/include/libpng15 instead of in
- $prefix/include/libpng/libpng15.
-
-Version 1.4.0beta108 [December 11, 2009]
- Removed leftover "-DPNG_CONFIGURE_LIBPNG" from contrib/pngminim/*/makefile
- Relocated png_do_chop() to its original position in pngrtran.c; the
- change in version 1.2.41beta08 caused transparency to be handled wrong
- in some 16-bit datastreams (Yusaku Sugai).
-
-Version 1.4.0beta109 [December 13, 2009]
- Added "bit_depth" parameter to the private png_build_gamma_table() function.
- Pass bit_depth=8 to png_build_gamma_table() when bit_depth is 16 but the
- PNG_16_TO_8 transform has been set, to avoid unnecessary build of 16-bit
- tables.
-
-Version 1.4.0rc02 [December 20, 2009]
- Declared png_cleanup_needed "volatile" in pngread.c and pngwrite.c
-
-Version 1.4.0rc03 [December 22, 2009]
- Renamed libpng-pc.in back to libpng.pc.in and revised CMakeLists.txt
- (revising the change in 1.4.0beta99)
-
-Version 1.4.0rc04 [December 25, 2009]
- Swapped PNG_UNKNOWN_CHUNKS_SUPPORTED and PNG_HANDLE_AS_UNKNOWN_SUPPORTED
- in pngset.c to be consistent with other changes in version 1.2.38.
-
-Version 1.4.0rc05 [December 25, 2009]
- Changed "libpng-pc.in" to "libpng.pc.in" in configure.ac, configure, and
- Makefile.in to be consistent with changes in libpng-1.4.0rc03
-
-Version 1.4.0rc06 [December 29, 2009]
- Reverted the gamma_table changes from libpng-1.4.0beta109.
- Fixed some indentation errors.
-
-Version 1.4.0rc07 [January 1, 2010]
- Revised libpng*.txt and libpng.3 about 1.2.x->1.4.x differences.
- Use png_calloc() instead of png_malloc(); png_memset() in pngrutil.c
- Update copyright year to 2010.
-
-Version 1.4.0rc08 [January 2, 2010]
- Avoid deprecated references to png_ptr-io_ptr and png_ptr->error_ptr
- in pngtest.c
-
-Version 1.4.0 [January 3, 2010]
- No changes.
-
-Version 1.4.1beta01 [January 8, 2010]
- Updated CMakeLists.txt for consistent indentation and to avoid an
- unclosed if-statement warning (Philip Lowman).
- Revised Makefile.am and Makefile.in to remove references to Y2KINFO,
- KNOWNBUG, and libpng.la (Robert Schwebel).
- Revised the makefiles to install the same files and symbolic
- links as configure, except for libpng.la and libpng14.la.
- Make png_set|get_compression_buffer_size() available even when
- PNG_WRITE_SUPPORTED is not enabled.
- Revised Makefile.am and Makefile.in to simplify their maintenance.
- Revised scripts/makefile.linux to install a link to libpng14.so.14.1
-
-Version 1.4.1beta02 [January 9, 2010]
- Revised the rest of the makefiles to install a link to libpng14.so.14.1
-
-Version 1.4.1beta03 [January 10, 2010]
- Removed png_set_premultiply_alpha() from scripts/*.def
-
-Version 1.4.1rc01 [January 16, 2010]
- No changes.
-
-Version 1.4.1beta04 [January 23, 2010]
- Revised png_decompress_chunk() to improve speed and memory usage when
- decoding large chunks.
- Added png_set|get_chunk_malloc_max() functions.
-
-Version 1.4.1beta05 [January 26, 2010]
- Relocated "int k" declaration in pngtest.c to minimize its scope.
-
-Version 1.4.1beta06 [January 28, 2010]
- Revised png_decompress_chunk() to use a two-pass method suggested by
- John Bowler.
-
-Version 1.4.1beta07 [February 6, 2010]
- Folded some long lines in the source files.
- Added defineable PNG_USER_CHUNK_CACHE_MAX, PNG_USER_CHUNK_MALLOC_MAX,
- and a PNG_USER_LIMITS_SUPPORTED flag.
- Eliminated use of png_ptr->irowbytes and reused the slot in png_ptr as
- png_ptr->png_user_chunk_malloc_max.
- Revised png_push_save_buffer() to do fewer but larger png_malloc() calls.
-
-Version 1.4.1beta08 [February 6, 2010]
- Minor cleanup and updating of dates and copyright year.
-
-Version 1.5.0beta01 [February 7, 2010]
- Moved declaration of png_struct into private pngstruct.h and png_info
- into pnginfo.h
-
-Version 1.4.1beta09 and 1.5.0beta02 [February 7, 2010]
- Reverted to original png_push_save_buffer() code.
-
-Version 1.4.1beta10 and 1.5.0beta03 [February 8, 2010]
- Return allocated "old_buffer" in png_push_save_buffer() before
- calling png_error(), to avoid a potential memory leak.
- Updated configure script to use SO number 15.
-
-Version 1.5.0beta04 [February 9, 2010]
- Removed malformed "incomplete struct declaration" of png_info from png.h
-
-Version 1.5.0beta05 [February 12, 2010]
- Removed PNG_DEPSTRUCT markup in pngstruct.h and pnginfo.h, and undid the
- linewrapping that it entailed.
- Revised comments in pngstruct.h and pnginfo.h and added pointers to
- the libpng license.
- Changed PNG_INTERNAL to PNG_EXPOSE_INTERNAL_STRUCTURES
- Removed the cbuilder5 project, which has not been updated to 1.4.0.
-
-Version 1.4.1beta12 and 1.5.0beta06 [February 14, 2010]
- Fixed type declaration of png_get_chunk_malloc_max() in pngget.c (Daisuke
- Nishikawa)
-
-Version 1.5.0beta07 [omitted]
-
-Version 1.5.0beta08 [February 19, 2010]
- Changed #ifdef PNG_NO_STDIO_SUPPORTED to #ifdef PNG_NO_CONSOLE_IO_SUPPORTED
- wherever png_snprintf() is used to construct error and warning messages.
- Noted in scripts/makefile.mingw that it expects to be run under MSYS.
- Removed obsolete unused MMX-querying support from contrib/gregbook
- Added exported png_longjmp() function.
- Removed the AIX redefinition of jmpbuf in png.h
- Added -D_ALLSOURCE in configure.ac, makefile.aix, and CMakeLists.txt
- when building on AIX.
-
-Version 1.5.0beta09 [February 19, 2010]
- Removed -D_ALLSOURCE from configure.ac, makefile.aix, and CMakeLists.txt.
- Changed the name of png_ptr->jmpbuf to png_ptr->png_jmpbuf in pngstruct.h
-
-Version 1.5.0beta10 [February 25, 2010]
- Removed unused gzio.c from contrib/pngminim gather and makefile scripts
- Removed replacement error handlers from contrib/gregbook. Because of
- the new png_longjmp() function they are no longer needed.
-
-Version 1.5.0beta11 [March 6, 2010]
- Removed checking for already-included setjmp.h from pngconf.h
- Fixed inconsistent indentations and made numerous cosmetic changes.
- Revised the "SEE ALSO" style of libpng.3, libpngpf.3, and png.5
-
-Version 1.5.0beta12 [March 9, 2010]
- Moved "#include png.h" inside pngpriv.h and removed "#include png.h" from
- the source files, along with "#define PNG_EXPOSE_INTERNAL_STRUCTURES"
- and "#define PNG_NO_PEDANTIC_WARNINGS" (John Bowler).
- Created new pngdebug.h and moved debug definitions there.
-
-Version 1.5.0beta13 [March 10, 2010]
- Protect pngstruct.h, pnginfo.h, and pngdebug.h from being included twice.
- Revise the "#ifdef" blocks in png_inflate() so it will compile when neither
- PNG_USER_CHUNK_MALLOC_MAX nor PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED
- is defined.
- Removed unused png_measure_compressed_chunk() from pngpriv.h and libpngpf.3
- Moved the 'config.h' support from pngconf.h to pngpriv.h
- Removed PNGAPI from the png_longjmp_ptr typedef.
- Eliminated dependence of pngtest.c on the private pngdebug.h file.
- Make all png_debug macros into *unterminated* statements or
- expressions (i.e. a trailing ';' must always be added) and correct
- the format statements in various png_debug messages.
-
-Version 1.5.0beta14 [March 14, 2010]
- Removed direct access to png_ptr->io_ptr from the Windows code in pngtest.c
- Revised Makefile.am to account for recent additions and replacements.
- Corrected CE and OS/2 DEF files (scripts/png*def) for symbols removed and
- added ordinal numbers to the Windows DEF file and corrected the duplicated
- ordinal numbers on CE symbols that are commented out.
- Added back in export symbols that can be present in the Windows build but
- are disabled by default.
- PNG_EXPORT changed to include an 'ordinal' field for DEF file generation.
- PNG_CALLBACK added to make callback definitions uniform. PNGAPI split
- into PNGCAPI (base C form), PNGAPI (exports) and PNGCBAPI (callbacks),
- and appropriate changes made to all files. Cygwin builds re-hinged to
- allow procedure call standard changes and to remove the need for the DEF
- file (fixes build on Cygwin).
- Enabled 'attribute' warnings that are relevant to library APIs and callbacks.
- Changed rules for generation of the various symbol files and added a new
- rule for a DEF file (which is also added to the distribution).
- Updated the symbol file generation to stop it adding spurious spaces
- to EOL (coming from preprocessor macro expansion). Added a facility
- to join tokens in the output and rewrite *.dfn to use this.
- Eliminated scripts/*.def in favor of libpng.def; updated projects/visualc71
- and removed scripts/makefile.cygwin.
- Made PNG_BUILD_DLL safe: it can be set whenever a DLL is being built.
- Removed the include of sys/types.h - apparently unnecessary now on the
- platforms on which it happened (all but Mac OS and RISC OS).
- Moved the Mac OS test into pngpriv.h (the only place it is used.)
-
-Version 1.5.0beta15 [March 17, 2010]
- Added symbols.chk target to Makefile.am to validate the symbols in png.h
- against the new DEF file scripts/symbols.def.
- Changed the default DEF file back to pngwin.def.
- Removed makefile.mingw.
- Eliminated PNG_NO_EXTERN and PNG_ALL_EXTERN
-
-Version 1.5.0beta16 [April 1, 2010]
- Make png_text_struct independent of PNG_iTXt_SUPPORTED, so that
- fields are initialized in all configurations. The READ/WRITE
- macros (PNG_(READ|WRITE)_iTXt_SUPPORTED) still function as
- before to disable code to actually read or write iTXt chunks
- and iTXt_SUPPORTED can be used to detect presence of either
- read or write support (but it is probably better to check for
- the one actually required - read or write.)
- Combined multiple png_warning() calls for a single error.
- Restored the macro definition of png_check_sig().
-
-Version 1.5.0beta17 [April 17, 2010]
- Added some "(long)" typecasts to printf calls in png_handle_cHRM().
- Documented the fact that png_set_dither() was disabled since libpng-1.4.0.
- Reenabled png_set_dither() but renamed it to png_set_quantize() to reflect
- more accurately what it actually does. At the same time, renamed
- the PNG_DITHER_[RED,GREEN_BLUE]_BITS macros to
- PNG_QUANTIZE_[RED,GREEN,BLUE]_BITS.
- Added some "(long)" typecasts to printf calls in png_handle_cHRM().
- Freeze build-time only configuration in the build.
- In all prior versions of libpng most configuration options
- controlled by compiler #defines had to be repeated by the
- application code that used libpng. This patch changes this
- so that compilation options that can only be changed at build
- time are frozen in the build. Options that are compiler
- dependent (and those that are system dependent) are evaluated
- each time - pngconf.h holds these. Options that can be changed
- per-file in the application are in png.h. Frozen options are
- in the new installed header file pnglibconf.h (John Bowler)
- Removed the xcode project because it has not been updated to work
- with libpng-1.5.0.
- Removed the ability to include optional pngusr.h
-
-Version 1.5.0beta18 [April 17, 2010]
- Restored the ability to include optional pngusr.h
- Moved replacements for png_error() and png_warning() from the
- contrib/pngminim project to pngerror.c, for use when warnings or
- errors are disabled via PNG_NO_WARN or PNG_NO_ERROR_TEXT, to avoid
- storing unneeded error/warning text.
- Updated contrib/pngminim project to work with the new pnglibconf.h
- Added some PNG_NO_* defines to contrib/pngminim/*/pngusr.h to save space.
-
-Version 1.5.0beta19 [April 24, 2010]
- Added PNG_{READ,WRITE}_INT_FUNCTIONS_SUPPORTED. This allows the functions
- to read and write ints to be disabled independently of PNG_USE_READ_MACROS,
- which allows libpng to be built with the functions even though the default
- is to use the macros - this allows applications to choose at app build
- time whether or not to use macros (previously impossible because the
- functions weren't in the default build.)
- Changed Windows calling convention back to __cdecl for API functions.
- For Windows/x86 platforms only:
- __stdcall is no longer needed for Visual Basic, so libpng-1.5.0 uses
- __cdecl throughout (both API functions and callbacks) on Windows/x86
- platforms.
- Replaced visualc6 and visualc71 projects with new vstudio project
- Relaxed the overly-restrictive permissions of some files.
-
-Version 1.5.0beta20 [April 24, 2010]
- Relaxed more overly-restrictive permissions of some files.
-
-Version 1.5.0beta21 [April 27, 2010]
- Removed some unwanted binary bytes and changed CRLF to NEWLINE in the new
- vstudio project files, and some trivial editing of some files in the
- scripts directory.
- Set PNG_NO_READ_BGR, PNG_NO_IO_STATE, and PNG_NO_TIME_RFC1123 in
- contrib/pngminim/decoder/pngusr.h to make a smaller decoder application.
-
-Version 1.5.0beta22 [April 28, 2010]
- Fixed dependencies of GET_INT_32 - it does not require READ_INT_FUNCTIONS
- because it has a macro equivalent.
- Improved the options.awk script; added an "everything off" option.
- Revised contrib/pngminim to use the "everything off" option in pngusr.dfa.
-
-Version 1.5.0beta23 [April 29, 2010]
- Corrected PNG_REMOVED macro to take five arguments.
- The macro was documented with two arguments (name,ordinal), however
- the symbol checking .dfn files assumed five arguments. The five
- argument form seems more useful so it is changed to that.
- Corrected PNG_UNKNOWN_CHUNKS_SUPPORTED to PNG_HANDLE_AS_UNKNOWN_SUPPORTED
- in gregbook/readpng2.c
- Corrected protection of png_get_user_transform_ptr. The API declaration in
- png.h is removed if both READ and WRITE USER_TRANSFORM are turned off
- but was left defined in pngtrans.c
- Added logunsupported=1 to cause pnglibconf.h to document disabled options.
- This makes the installed pnglibconf.h more readable but causes no
- other change. The intention is that users of libpng will find it
- easier to understand if an API they need is missing.
- Include png_reset_zstream() in png.c only when PNG_READ_SUPPORTED is defined.
- Removed dummy_inflate.c from contrib/pngminim/encoder
- Removed contrib/pngminim/*/gather.sh; gathering is now done in the makefile.
-
-Version 1.5.0beta24 [May 7, 2010]
- Use bitwise "&" instead of arithmetic mod in pngrutil.c calculation of the
- offset of the png_ptr->rowbuf pointer into png_ptr->big_row_buf.
- Added more blank lines for readability.
-
-Version 1.5.0beta25 [June 18, 2010]
- In pngpread.c: png_push_have_row() add check for new_row > height
- Removed the now-redundant check for out-of-bounds new_row from example.c
-
-Version 1.5.0beta26 [June 18, 2010]
- In pngpread.c: png_push_process_row() add check for too many rows.
-
-Version 1.5.0beta27 [June 18, 2010]
- Removed the check added in beta25 as it is now redundant.
-
-Version 1.5.0beta28 [June 20, 2010]
- Rewrote png_process_IDAT_data to consistently treat extra data as warnings
- and handle end conditions more cleanly.
- Removed the new (beta26) check in png_push_process_row().
-
-Version 1.5.0beta29 [June 21, 2010]
- Revised scripts/options.awk to work on Sunos (but still doesn't work)
- Added comment to options.awk and contrib/pngminim/*/makefile to try nawk.
-
-Version 1.5.0beta30 [June 22, 2010]
- Stop memory leak when reading a malformed sCAL chunk.
-
-Version 1.5.0beta31 [June 26, 2010]
- Revised pngpread.c patch of beta28 to avoid an endless loop.
- Removed some trailing blanks.
-
-Version 1.5.0beta32 [June 26, 2010]
- Removed leftover scripts/options.patch and scripts/options.rej
-
-Version 1.5.0beta33 [July 6, 3010]
- Made FIXED and FLOATING options consistent in the APIs they enable and
- disable. Corrected scripts/options.awk to handle both command line
- options and options specified in the .dfa files.
- Changed char *msg to PNG_CONST char *msg in pngrutil.c
- Make png_set_sRGB_gAMA_and_cHRM set values using either the fixed or
- floating point APIs, but not both.
- Reversed patch to remove error handler when the jmp_buf is stored in the
- main program structure, not the png_struct.
- The error handler is needed because the default handler in libpng will
- always use the jmp_buf in the library control structure; this is never
- set. The gregbook code is a useful example because, even though it
- uses setjmp/longjmp, it shows how error handling can be implemented
- using control mechanisms not directly supported by libpng. The
- technique will work correctly with mechanisms such as Microsoft
- Structure Exceptions or C++ exceptions (compiler willing - note that gcc
- does not by default support interworking of C and C++ error handling.)
- Reverted changes to call png_longjmp in contrib/gregbook where it is not
- appropriate. If mainprog->jmpbuf is used by setjmp, then png_longjmp
- cannot be used.
- Changed "extern PNG_EXPORT" to "PNG_EXPORT" in png.h (Jan Nijtmans)
- Changed "extern" to "PNG_EXTERN" in pngpriv.h (except for the 'extern "C" {')
-
-Version 1.5.0beta34 [July 12, 2010]
- Put #ifndef PNG_EXTERN, #endif around the define PNG_EXTERN in pngpriv.h
-
-Version 1.5.0beta35 [July 24, 2010]
- Removed some newly-added TAB characters.
- Added -DNO_PNG_SNPRINTF to CFLAGS in scripts/makefile.dj2
- Moved the definition of png_snprintf() outside of the enclosing
- #ifdef blocks in pngconf.h
-
-Version 1.5.0beta36 [July 29, 2010]
- Patches by John Bowler:
- Fixed point APIs are now supported throughout (no missing APIs).
- Internal fixed point arithmetic support exists for all internal floating
- point operations.
- sCAL validates the floating point strings it is passed.
- Safe, albeit rudimentary, Watcom support is provided by PNG_API_RULE==2
- Two new APIs exist to get the number of passes without turning on the
- PNG_INTERLACE transform and to get the number of rows in the current
- pass.
- A new test program, pngvalid.c, validates the gamma code.
- Errors in the 16-bit gamma correction (overflows) have been corrected.
- cHRM chunk testing is done consistently (previously the floating point
- API bypassed it, because the test really didn't work on FP, now the test
- is performed on the actual values to be stored in the PNG file so it
- works in the FP case too.)
- Most floating point APIs now simply call the fixed point APIs after
- converting the values to the fixed point form used in the PNG file.
- The standard headers no longer include zlib.h, which is currently only
- required for pngstruct.h and can therefore be internal.
- Revised png_get_int_32 to undo the PNG two's complement representation of
- negative numbers.
-
-Version 1.5.0beta37 [July 30, 2010]
- Added a typecast in png_get_int_32() in png.h and pngrutil.h to avoid
- a compiler warning.
- Replaced oFFs 0,0 with oFFs -10,20 in pngtest.png
-
-Version 1.5.0beta38 [July 31, 2010]
- Implemented remaining "_fixed" functions.
- Corrected a number of recently introduced warnings mostly resulting from
- safe but uncast assignments to shorter integers. Also added a zlib
- VStudio release library project because the latest zlib Official Windows
- build does not include such a thing.
- Revised png_get_int_16() to be similar to png_get_int_32().
- Restored projects/visualc71.
-
-Version 1.5.0beta39 [August 2, 2010]
- VisualC/GCC warning fixes, VisualC build fixes
- The changes include support for function attributes in VC in addition to
- those already present in GCC - necessary because without these some
- warnings are unavoidable. Fixes include signed/unsigned fixes in
- pngvalid and checks with gcc -Wall -Wextra -Wunused.
- VC requires function attributes on function definitions as well as
- declarations, PNG_FUNCTION has been added to enable this and the
- relevant function definitions changed.
-
-Version 1.5.0beta40 [August 6, 2010]
- Correct use of _WINDOWS_ in pngconf.h
- Removed png_mem_ #defines; they are no longer used.
- Added the sRGB chunk to pngtest.png
-
-Version 1.5.0beta41 [August 11, 2010]
- Added the cHRM chunk to pngtest.png
- Don't try to use version-script with cygwin/mingw.
- Revised contrib/gregbook to work under cygwin/mingw.
-
-Version 1.5.0beta42 [August 18, 2010]
- Add .dll.a to the list of extensions to be symlinked by Makefile.am (Yaakov)
- Made all API functions that have const arguments and constant string
- literal pointers declare them (John Bowler).
-
-Version 1.5.0beta43 [August 20, 2010]
- Removed spurious tabs, shorten long lines (no source change)
- Also added scripts/chkfmt to validate the format of all the files that can
- reasonably be validated (it is suggested to run "make distclean" before
- checking, because some machine generated files have long lines.)
- Reformatted the CHANGES file to be more consistent throughout.
- Made changes to address various issues identified by GCC, mostly
- signed/unsigned and shortening problems on assignment but also a few
- difficult to optimize (for GCC) loops.
- Fixed non-GCC fixed point builds. In png.c a declaration was misplaced
- in an earlier update. Fixed to declare the auto variables at the head.
- Use cexcept.h in pngvalid.c.
-
-Version 1.5.0beta44 [August 24, 2010]
- Updated CMakeLists.txt to use CMAKE_INSTALL_LIBDIR variable; useful for
- installing libpng in /usr/lib64 (Funda Wang).
- Revised CMakeLists.txt to put the man pages in share/man/man* not man/man*
- Revised CMakeLists.txt to make symlinks instead of copies when installing.
- Changed PNG_LIB_NAME from pngNN to libpngNN in CMakeLists.txt (Philip Lowman)
- Implemented memory checks within pngvalid
- Reformatted/rearranged pngvalid.c to assist use of progressive reader.
- Check interlaced images in pngvalid
- Clarified pngusr.h comments in pnglibconf.dfa
- Simplified the pngvalid error-handling code now that cexcept.h is in place.
- Implemented progressive reader in pngvalid.c for standard tests
- Implemented progressive read in pngvalid.c gamma tests
- Turn on progressive reader in pngvalid.c by default and tidy code.
-
-Version 1.5.0beta45 [August 26, 2010]
- Added an explicit make step to projects/vstudio for pnglibconf.h
- Also corrected zlib.vcxproj into which Visual Studio had introduced
- what it calls an "authoring error". The change to make pnglibconf.h
- simply copies the file; in the future it may actually generate the
- file from scripts/pnglibconf.dfa as the other build systems do.
- Changed pngvalid to work when floating point APIs are disabled
- Renamed the prebuilt scripts/pnglibconf.h to scripts/pnglibconf.h.prebuilt
- Supply default values for PNG_USER_PRIVATEBUILD and PNG_USER_DLLFNAME_POSTFIX
- in pngpriv.h in case the user neglected to define them in their pngusr.h
-
-Version 1.5.0beta46 [August 28, 2010]
- Added new private header files to libpng_sources in CMakeLists.txt
- Added PNG_READ_16BIT, PNG_WRITE_16BIT, and PNG_16BIT options.
- Added reference to scripts/pnglibconf.h.prebuilt in the visualc71 project.
-
-Version 1.5.0beta47 [September 11, 2010]
- Fixed a number of problems with 64-bit compilation reported by Visual
- Studio 2010 (John Bowler).
-
-Version 1.5.0beta48 [October 4, 2010]
- Updated CMakeLists.txt (Philip Lowman).
- Revised autogen.sh to recognize and use $AUTOCONF, $AUTOMAKE, $AUTOHEADER,
- $AUTOPOINT, $ACLOCAL and $LIBTOOLIZE
- Fixed problem with symbols creation in Makefile.am which was assuming that
- all versions of ccp write to standard output by default (Martin Banky). The
- bug was introduced in libpng-1.2.9beta5.
- Removed unused mkinstalldirs.
-
-Version 1.5.0beta49 [October 8, 2010]
- Undid Makefile.am revision of 1.5.0beta48.
-
-Version 1.5.0beta50 [October 14, 2010]
- Revised Makefile.in to account for mkinstalldirs being removed.
- Added some "(unsigned long)" typecasts in printf statements in pngvalid.c.
- Suppressed a compiler warning in png_handle_sPLT().
- Check for out-of-range text compression mode in png_set_text().
-
-Version 1.5.0beta51 [October 15, 2010]
- Changed embedded dates to "(PENDING RELEASE) in beta releases (and future
- rc releases) to minimize the difference between releases.
-
-Version 1.5.0beta52 [October 16, 2010]
- Restored some of the embedded dates (in png.h, png.c, documentation, etc.)
-
-Version 1.5.0beta53 [October 18, 2010]
- Updated INSTALL to mention using "make maintainer-clean" and to remove
- obsolete statement about a custom ltmain.sh
- Disabled "color-tests" by default in Makefile.am so it will work with
- automake versions earlier than 1.11.1
- Use document name "libpng-manual.txt" instead of "libpng-<version>.txt"
- to simplify version differences.
- Removed obsolete remarks about setjmp handling from INSTALL.
- Revised and renamed the typedef in png.h and png.c that was designed
- to catch library and header mismatch.
-
-Version 1.5.0beta54 [November 10, 2010]
- Require 48 bytes, not 64 bytes, for big_row_buf in overflow checks.
- Used a consistent structure for the pngget.c functions.
-
-Version 1.5.0beta55 [November 21, 2010]
- Revised png_get_uint_32, png_get_int_32, png_get_uint_16 (Cosmin)
- Moved reading of file signature into png_read_sig (Cosmin)
- Fixed atomicity of chunk header serialization (Cosmin)
- Added test for io_state in pngtest.c (Cosmin)
- Added "#!/bin/sh" at the top of contrib/pngminim/*/gather.sh scripts.
- Changes to remove gcc warnings (John Bowler)
- Certain optional gcc warning flags resulted in warnings in libpng code.
- With these changes only -Wconversion and -Wcast-qual cannot be turned on.
- Changes are trivial rearrangements of code. -Wconversion is not possible
- for pngrutil.c (because of the widespread use of += et al on variables
- smaller than (int) or (unsigned int)) and -Wcast-qual is not possible
- with pngwio.c and pngwutil.c because the 'write' callback and zlib
- compression both fail to declare their input buffers with 'const'.
-
-Version 1.5.0beta56 [December 7, 2010]
- Added the private PNG_UNUSED() macro definition in pngpriv.h.
- Added some commentary about PNG_EXPORT in png.h and pngconf.h
- Revised PNG_EXPORT() macro and added PNG_EXPORTA() macro, with the
- objective of simplifying and improving the cosmetic appearance of png.h.
- Fixed some incorrect "=" macro names in pnglibconf.dfa
- Included documentation of changes in 1.5.0 from 1.4.x in libpng-manual.txt
-
-Version 1.5.0beta57 [December 9, 2010]
- Documented the pngvalid gamma error summary with additional comments and
- print statements.
- Improved missing symbol handling in checksym.awk; symbols missing in both
- the old and new files can now be optionally ignored, treated as errors
- or warnings.
- Removed references to pngvcrd.c and pnggccrd.c from the vstudio project.
- Updated "libpng14" to "libpng15" in the visualc71 project.
- Enabled the strip16 tests in pngvalid.`
- Don't display test results (except PASS/FAIL) when running "make test".
- Instead put them in pngtest-log.txt
- Added "--with-zprefix=<string>" to configure.ac
- Updated the prebuilt configuration files to autoconf version 2.68
-
-Version 1.5.0beta58 [December 19, 2010]
- Fixed interlace image handling and add test cases (John Bowler)
- Fixed the clean rule in Makefile.am to remove pngtest-log.txt
- Made minor changes to work around warnings in gcc 3.4
-
-Version 1.5.0rc01 [December 27, 2010]
- No changes.
-
-Version 1.5.0rc02 [December 27, 2010]
- Eliminated references to the scripts/*.def files in project/visualc71.
-
-Version 1.5.0rc03 [December 28, 2010]
- Eliminated scripts/*.def and revised Makefile.am accordingly
-
-Version 1.5.0rc04 [December 29, 2010]
- Fixed bug in background transformation handling in pngrtran.c (it was
- looking for the flag in png_ptr->transformations instead of in
- png_ptr->flags) (David Raymond).
-
-Version 1.5.0rc05 [December 31, 2010]
- Fixed typo in a comment in CMakeLists.txt (libpng14 => libpng15) (Cosmin)
-
-Version 1.5.0rc06 [January 4, 2011]
- Changed the new configure option "zprefix=string" to "zlib-prefix=string"
-
-Version 1.5.0rc07 [January 4, 2011]
- Updated copyright year.
-
-Version 1.5.0 [January 6, 2011]
- No changes.
-
-version 1.5.1beta01 [January 8, 2011]
- Added description of png_set_crc_action() to the manual.
- Added a note in the manual that the type of the iCCP profile was changed
- from png_charpp to png_bytepp in png_get_iCCP(). This change happened
- in version 1.5.0beta36 but is not noted in the CHANGES. Similarly,
- it was changed from png_charpp to png_const_bytepp in png_set_iCCP().
- Ensure that png_rgb_to_gray ignores palette mapped images, if libpng
- internally happens to call it with one, and fixed a failure to handle
- palette mapped images correctly. This fixes CVE-2690.
-
-Version 1.5.1beta02 [January 14, 2011]
- Fixed a bug in handling of interlaced images (bero at arklinux.org).
- Updated CMakeLists.txt (Clifford Yapp)
-
-Version 1.5.1beta03 [January 14, 2011]
- Fixed typecasting of some png_debug() statements (Cosmin)
-
-Version 1.5.1beta04 [January 16, 2011]
- Updated documentation of png_set|get_tRNS() (Thomas Klausner).
- Mentioned in the documentation that applications must #include "zlib.h"
- if they need access to anything in zlib.h, and that a number of
- macros such as png_memset() are no longer accessible by applications.
- Corrected pngvalid gamma test "sample" function to access all of the color
- samples of each pixel, instead of sampling the red channel three times.
- Prefixed variable names index, div, exp, gamma with "png_" to avoid "shadow"
- warnings, and (mistakenly) changed png_exp() to exp().
-
-Version 1.5.1beta05 [January 16, 2011]
- Changed variable names png_index, png_div, png_exp, and png_gamma to
- char_index, divisor, exp_b10, and gamma_val, respectively, and
- changed exp() back to png_exp().
-
-Version 1.5.1beta06 [January 20, 2011]
- Prevent png_push_crc_skip() from hanging while reading an unknown chunk
- or an over-large compressed zTXt chunk with the progressive reader.
- Eliminated more GCC "shadow" warnings.
- Revised png_fixed() in png.c to avoid compiler warning about reaching the
- end without returning anything.
-
-Version 1.5.1beta07 [January 22, 2011]
- In the manual, describe the png_get_IHDR() arguments in the correct order.
- Added const_png_structp and const_png_infop types, and used them in
- prototypes for most png_get_*() functions.
-
-Version 1.5.1beta08 [January 23, 2011]
- Added png_get_io_chunk_type() and deprecated png_get_io_chunk_name()
- Added synopses for the IO_STATE functions and other missing synopses
- to the manual. Removed the synopses from libpngpf.3 because they
- were out of date and no longer useful. Better information can be
- obtained by reading the prototypes and comments in pngpriv.h
- Attempted to fix cpp on Solaris with S. Studio 12 cc, fix build
- Added a make macro DFNCPP that is a CPP that will accept the tokens in
- a .dfn file and adds configure stuff to test for such a CPP. ./configure
- should fail if one is not available.
- Corrected const_png_ in png.h to png_const_ to avoid polluting the namespace.
- Added png_get_current_row_number and png_get_current_pass_number for the
- benefit of the user transform callback.
- Added png_process_data_pause and png_process_data_skip for the benefit of
- progressive readers that need to stop data processing or want to optimize
- skipping of unread data (e.g., if the reader marks a chunk to be skipped.)
-
-Version 1.5.1beta09 [January 24, 2011]
- Enhanced pngvalid, corrected an error in gray_to_rgb, corrected doc error.
- pngvalid contains tests of transforms, which tests are currently disabled
- because they are incompletely tested. gray_to_rgb was failing to expand
- the bit depth for smaller bit depth images; this seems to be a long
- standing error and resulted, apparently, in invalid output
- (CVE-2011-0408, CERT VU#643140). The documentation did not accurately
- describe what libpng really does when converting RGB to gray.
-
-Version 1.5.1beta10 [January 27, 2010]
- Fixed incorrect examples of callback prototypes in the manual, that were
- introduced in libpng-1.0.0.
- In addition the order of the png_get_uint macros with respect to the
- relevant function definitions has been reversed. This helps the
- preprocessing of the symbol files be more robust. Furthermore, the
- symbol file preprocessing now uses -DPNG_NO_USE_READ_MACROS even when
- the library may actually be built with PNG_USE_READ_MACROS; this stops
- the read macros interfering with the symbol file format.
- Made the manual, synopses, and function prototypes use the function
- argument names file_gamma, int_file_gamma, and srgb_intent consistently.
-
-Version 1.5.1beta11 [January 28, 2011]
- Changed PNG_UNUSED from "param=param;" to "{if(param){}}".
- Corrected local variable type in new API png_process_data_skip()
- The type was self-evidently incorrect but only causes problems on 64-bit
- architectures.
- Added transform tests to pngvalid and simplified the arguments.
-
-Version 1.5.1rc01 [January 29, 2011]
- No changes.
-
-Version 1.5.1rc02 [January 31, 2011]
- Added a request in the manual that applications do not use "png_" or
- "PNG_" to begin any of their own symbols.
- Changed PNG_UNUSED to "(void)param;" and updated the commentary in pngpriv.h
-
-Version 1.5.1 [February 3, 2011]
- No changes.
-
-Version 1.5.2beta01 [February 13, 2011]
- More -Wshadow fixes for older gcc compilers. Older gcc versions apparently
- check formal parameters names in function declarations (as well as
- definitions) to see if they match a name in the global namespace.
- Revised PNG_EXPORTA macro to not use an empty parameter, to accommodate the
- old VisualC++ preprocessor.
- Turned on interlace handling in png_read_png().
- Fixed gcc pedantic warnings.
- Handle longjmp in Cygwin.
- Fixed png_get_current_row_number() in the interlaced case.
- Cleaned up ALPHA flags and transformations.
- Implemented expansion to 16 bits.
-
-Version 1.5.2beta02 [February 19, 2011]
- Fixed mistake in the descriptions of user read_transform and write_transform
- function prototypes in the manual. The row_info struct is png_row_infop.
- Reverted png_get_current_row_number() to previous (1.5.2beta01) behavior.
- Corrected png_get_current_row_number documentation
- Fixed the read/write row callback documentation.
- This documents the current behavior, where the callback is called after
- every row with information pertaining to the next row.
-
-Version 1.5.2beta03 [March 3, 2011]
- Fixed scripts/makefile.vcwin32
- Updated contrib/pngsuite/README to add the word "modify".
- Define PNG_ALLOCATED to blank when _MSC_VER<1300.
-
-Version 1.5.2rc01 [March 19, 2011]
- Define remaining attributes to blank when MSC_VER<1300.
- ifdef out mask arrays in pngread.c when interlacing is not supported.
-
-Version 1.5.2rc02 [March 22, 2011]
- Added a hint to try CPP=/bin/cpp if "cpp -E" fails in scripts/pnglibconf.mak
- and in contrib/pngminim/*/makefile, eg., on SunOS 5.10, and removed "strip"
- from the makefiles.
- Fixed a bug (present since libpng-1.0.7) that makes png_handle_sPLT() fail
- to compile when PNG_NO_POINTER_INDEXING is defined (Chubanov Kirill)
-
-Version 1.5.2rc03 [March 24, 2011]
- Don't include standard header files in png.h while building the symbol table,
- to avoid cpp failure on SunOS (introduced PNG_BUILDING_SYMBOL_TABLE macro).
-
-Version 1.5.2 [March 31, 2011]
- No changes.
-
-Version 1.5.3beta01 [April 1, 2011]
- Re-initialize the zlib compressor before compressing non-IDAT chunks.
- Added API functions (png_set_text_compression_level() and four others) to
- set parameters for zlib compression of non-IDAT chunks.
-
-Version 1.5.3beta02 [April 3, 2011]
- Updated scripts/symbols.def with new API functions.
- Only compile the new zlib re-initializing code when text or iCCP is
- supported, using PNG_WRITE_COMPRESSED_TEXT_SUPPORTED macro.
- Improved the optimization of the zlib CMF byte (see libpng-1.2.6beta03).
- Optimize the zlib CMF byte in non-IDAT compressed chunks
-
-Version 1.5.3beta03 [April 16, 2011]
- Fixed gcc -ansi -pedantic compile. A strict ANSI system does not have
- snprintf, and the "__STRICT_ANSI__" detects that condition more reliably
- than __STDC__ (John Bowler).
- Removed the PNG_PTR_NORETURN attribute because it too dangerous. It tells
- the compiler that a user supplied callback (the error handler) does not
- return, yet there is no guarantee in practice that the application code
- will correctly implement the error handler because the compiler only
- issues a warning if there is a mistake (John Bowler).
- Removed the no-longer-used PNG_DEPSTRUCT macro.
- Updated the zlib version to 1.2.5 in the VStudio project.
- Fixed 64-bit builds where png_uint_32 is smaller than png_size_t in
- pngwutil.c (John Bowler).
- Fixed bug with stripping the filler or alpha channel when writing, that
- was introduced in libpng-1.5.2beta01 (bug report by Andrew Church).
-
-Version 1.5.3beta04 [April 27, 2011]
- Updated pngtest.png with the new zlib CMF optimization.
- Cleaned up conditional compilation code and of background/gamma handling
- Internal changes only except a new option to avoid compiling the
- png_build_grayscale_palette API (which is not used at all internally.)
- The main change is to move the transform tests (READ_TRANSFORMS,
- WRITE_TRANSFORMS) up one level to the caller of the APIs. This avoids
- calls to spurious functions if all transforms are disabled and slightly
- simplifies those functions. Pngvalid modified to handle this.
- A minor change is to stop the strip_16 and expand_16 interfaces from
- disabling each other; this allows the future alpha premultiplication
- code to use 16-bit intermediate values while still producing 8-bit output.
- png_do_background and png_do_gamma have been simplified to take a single
- pointer to the png_struct rather than pointers to every item required
- from the png_struct. This makes no practical difference to the internal
- code.
- A serious bug in the pngvalid internal routine 'standard_display_init' has
- been fixed - this failed to initialize the red channel and accidentally
- initialized the alpha channel twice.
- Changed png_struct jmp_buf member name from png_jmpbuf to tmp_jmpbuf to
- avoid a possible clash with the png_jmpbuf macro on some platforms.
-
-Version 1.5.3beta05 [May 6, 2011]
- Added the "_POSIX_SOURCE" feature test macro to ensure libpng sees the
- correct API. _POSIX_SOURCE is defined in pngpriv.h, pngtest.c and
- pngvalid.c to ensure that POSIX conformant systems disable non-POSIX APIs.
- Removed png_snprintf and added formatted warning messages. This change adds
- internal APIs to allow png_warning messages to have parameters without
- requiring the host OS to implement snprintf. As a side effect the
- dependency of the tIME-supporting RFC1132 code on stdio is removed and
- PNG_NO_WARNINGS does actually work now.
- Pass "" instead of '\0' to png_default_error() in png_err(). This mistake
- was introduced in libpng-1.2.20beta01. This fixes CVE-2011-2691.
- Added PNG_WRITE_OPTIMIZE_CMF_SUPPORTED macro to make the zlib "CMF" byte
- optimization configurable.
- IDAT compression failed if preceded by a compressed text chunk (bug
- introduced in libpng-1.5.3beta01-02). This was because the attempt to
- reset the zlib stream in png_write_IDAT happened after the first IDAT
- chunk had been deflated - much too late. In this change internal
- functions were added to claim/release the z_stream and, hopefully, make
- the code more robust. Also deflateEnd checking is added - previously
- libpng would ignore an error at the end of the stream.
-
-Version 1.5.3beta06 [May 8, 2011]
- Removed the -D_ALL_SOURCE from definitions for AIX in CMakeLists.txt
- Implemented premultiplied alpha support: png_set_alpha_mode API
-
-Version 1.5.3beta07 [May 11, 2011]
- Added expand_16 support to the high level interface.
- Added named value and 'flag' gamma support to png_set_gamma. Made a minor
- change from the previous (unreleased) ABI/API to hide the exact value used
- for Macs - it's not a good idea to embed this in the ABI!
- Moved macro definitions for PNG_HAVE_IHDR, PNG_HAVE_PLTE, and PNG_AFTER_IDAT
- from pngpriv.h to png.h because they must be visible to applications
- that call png_set_unknown_chunks().
- Check for up->location !PNG_AFTER_IDAT when writing unknown chunks
- before IDAT.
-
-Version 1.5.3beta08 [May 16, 2011]
- Improved "pngvalid --speed" to exclude more of pngvalid from the time.
- Documented png_set_alpha_mode(), other changes in libpng.3/libpng-manual.txt
- The cHRM chunk now sets the defaults for png_set_rgb_to_gray() (when negative
- parameters are supplied by the caller), while in the absence of cHRM
- sRGB/Rec 709 values are still used. This introduced a divide-by-zero
- bug in png_handle_cHRM().
- The bKGD chunk no longer overwrites the background value set by
- png_set_background(), allowing the latter to be used before the file
- header is read. It never performed any useful function to override
- the default anyway.
- Added memory overwrite and palette image checks to pngvalid.c
- Previously palette image code was poorly checked. Since the transformation
- code has a special palette path in most cases this was a severe weakness.
- Minor cleanup and some extra checking in pngrutil.c and pngrtran.c. When
- expanding an indexed image, always expand to RGBA if transparency is
- present.
-
-Version 1.5.3beta09 [May 17, 2011]
- Reversed earlier 1.5.3 change of transformation order; move png_expand_16
- back where it was. The change doesn't work because it requires 16-bit
- gamma tables when the code only generates 8-bit ones. This fails
- silently; the libpng code just doesn't do any gamma correction. Moving
- the tests back leaves the old, inaccurate, 8-bit gamma calculations, but
- these are clearly better than none!
-
-Version 1.5.3beta10 [May 20, 2011]
-
- png_set_background() and png_expand_16() did not work together correctly.
- This problem is present in 1.5.2; if png_set_background is called with
- need_expand false and the matching 16 bit color libpng erroneously just
- treats it as an 8-bit color because of where png_do_expand_16 is in the
- transform list. This simple fix reduces the supplied colour to 8-bits,
- so it gets smashed, but this is better than the current behavior.
- Added tests for expand16, more fixes for palette image tests to pngvalid.
- Corrects the code for palette image tests and disables attempts to
- validate palette colors.
-
-Version 1.5.3rc01 [June 3, 2011]
- No changes.
-
-Version 1.5.3rc02 [June 8, 2011]
- Fixed uninitialized memory read in png_format_buffer() (Bug report by
- Frank Busse, CVE-2011-2501, related to CVE-2004-0421).
-
-Version 1.5.3beta11 [June 11, 2011]
- Fixed png_handle_sCAL which is broken in 1.5. This fixes CVE 2011-2692.
- Added sCAL to pngtest.png
- Revised documentation about png_set_user_limits() to say that it also affects
- png writing.
- Revised handling of png_set_user_limits() so that it can increase the
- limit beyond the PNG_USER_WIDTH|HEIGHT_MAX; previously it could only
- reduce it.
- Make the 16-to-8 scaling accurate. Dividing by 256 with no rounding is
- wrong (high by one) 25% of the time. Dividing by 257 with rounding is
- wrong in 128 out of 65536 cases. Getting the right answer all the time
- without division is easy.
- Added "_SUPPORTED" to the PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION macro.
- Added projects/owatcom, an IDE project for OpenWatcom to replace
- scripts/makefile.watcom. This project works with OpenWatcom 1.9. The
- IDE autogenerates appropriate makefiles (libpng.mk) for batch processing.
- The project is configurable, unlike the Visual Studio project, so long
- as the developer has an awk.
- Changed png_set_gAMA to limit the gamma value range so that the inverse
- of the stored value cannot overflow the fixed point representation,
- and changed other things OpenWatcom warns about.
- Revised pngvalid.c to test PNG_ALPHA_MODE_SUPPORTED correctly. This allows
- pngvalid to build when ALPHA_MODE is not supported, which is required if
- it is to build on libpng 1.4.
- Removed string/memory macros that are no longer used and are not
- necessarily fully supportable, particularly png_strncpy and png_snprintf.
- Added log option to pngvalid.c and attempted to improve gamma messages.
-
-Version 1.5.3 [omitted]
- People found the presence of a beta release following an rc release
- to be confusing; therefore we bump the version to libpng-1.5.4beta01
- and there will be no libpng-1.5.3 release.
-
-Version 1.5.4beta01 [June 14, 2011]
- Made it possible to undefine PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
- to get the same (inaccurate) output as libpng-1.5.2 and earlier.
- Moved definitions of PNG_HAVE_IHDR, PNG_AFTER_IDAT, and PNG_HAVE_PLTE
- outside of an unknown-chunk block in png.h because they are also
- needed for other uses.
-
-Version 1.5.4beta02 [June 14, 2011]
- Fixed and clarified LEGACY 16-to-8 scaling code.
- Added png_set_chop_16() API, to match inaccurate results from previous
- libpng versions.
- Removed the ACCURATE and LEGACY options (they are no longer useable)
- Use the old scaling method for background if png_set_chop_16() was
- called.
- Made png_set_chop_16() API removeable by disabling PNG_CHOP_16_TO_8_SUPPORTED
-
-Version 1.5.4beta03 [June 15, 2011]
- Fixed a problem in png_do_expand_palette() exposed by optimization in
- 1.5.3beta06
- Also removed a spurious and confusing "trans" member ("trans") from png_info.
- The palette expand optimization prevented expansion to an intermediate RGBA
- form if tRNS was present but alpha was marked to be stripped; this exposed
- a check for tRNS in png_do_expand_palette() which is inconsistent with the
- code elsewhere in libpng.
- Correction to the expand_16 code; removed extra instance of
- png_set_scale_16_to_8 from pngpriv.h
-
-Version 1.5.4beta04 [June 16, 2011]
- Added a missing "#ifdef PNG_READ_BACKGROUND_SUPPORTED/#endif" in pngrtran.c
- Added PNG_TRANSFORM_CHOP_16 to the high-level read transforms.
- Made PNG_READ_16_TO_8_ACCURATE_SCALE configurable again. If this is
- not enabled, png_set_strip_16() and png_do_scale_16_to_8() aren't built.
- Revised contrib/visupng, gregbook, and pngminim to demonstrate chop_16_to_8
-
-Version 1.5.4beta05 [June 16, 2011]
- Renamed png_set_strip_16() to png_set_scale_16() and renamed
- png_set_chop_16() to png_set_strip(16) in an attempt to minimize the
- behavior changes between libpng14 and libpng15.
-
-Version 1.5.4beta06 [June 18, 2011]
- Fixed new bug that was causing both strip_16 and scale_16 to be applied.
-
-Version 1.5.4beta07 [June 19, 2011]
- Fixed pngvalid, simplified macros, added checking for 0 in sCAL.
- The ACCURATE scale macro is no longer defined in 1.5 - call the
- png_scale_16_to_8 API. Made sure that PNG_READ_16_TO_8 is still defined
- if the png_strip_16_to_8 API is present. png_check_fp_number now
- maintains some state so that positive, negative and zero values are
- identified. sCAL uses these to be strictly spec conformant.
-
-Version 1.5.4beta08 [June 23, 2011]
- Fixed pngvalid if ACCURATE_SCALE is defined.
- Updated scripts/pnglibconf.h.prebuilt.
-
-Version 1.5.4rc01 [June 30, 2011]
- Define PNG_ALLOCATED to "restrict" only if MSC_VER >= 1400.
-
-Version 1.5.4 [July 7, 2011]
- No changes.
-
-Version 1.5.5beta01 [July 13, 2011]
- Fixed some typos and made other minor changes in the manual.
- Updated contrib/pngminus/makefile.std (Samuli Souminen)
-
-Version 1.5.5beta02 [July 14, 2011]
- Revised Makefile.am and Makefile.in to look in the right directory for
- pnglibconf.h.prebuilt
-
-Version 1.5.5beta03 [July 27, 2011]
- Enabled compilation with g++ compiler. This compiler does not recognize
- the file extension, so it always compiles with C++ rules. Made minor
- changes to pngrutil.c to cast results where C++ expects it but C does not.
- Minor editing of libpng.3 and libpng-manual.txt.
-
-Version 1.5.5beta04 [July 29, 2011]
- Revised CMakeLists.txt (Clifford Yapp)
- Updated commentary about the png_rgb_to_gray() default coefficients
- in the manual and in pngrtran.c
-
-Version 1.5.5beta05 [August 17, 2011]
- Prevent unexpected API exports from non-libpng DLLs on Windows. The "_DLL"
- is removed from the test of whether a DLL is being built (this erroneously
- caused the libpng APIs to be marked as DLL exports in static builds under
- Microsoft Visual Studio). Almost all of the libpng building configuration
- is moved from pngconf.h to pngpriv.h, but PNG_DLL_EXPORT remains in
- pngconf.h, though, so that it is colocated with the import definition (it
- is no longer used anywhere in the installed headers). The VStudio project
- definitions have been cleaned up: "_USRDLL" has been removed from the
- static library builds (this was incorrect), and PNG_USE_DLL has been added
- to pngvalid to test the functionality (pngtest does not supply it,
- deliberately). The spurious "_EXPORTS" has been removed from the
- libpng build (all these errors were a result of copy/paste between project
- configurations.)
- Added new types and internal functions for CIE RGB end point handling to
- pngpriv.h (functions yet to be implemented).
-
-Version 1.5.5beta06 [August 26, 2011]
- Ensure the CMAKE_LIBRARY_OUTPUT_DIRECTORY is set in CMakeLists.txt
- (Clifford Yap)
- Fixes to rgb_to_gray and cHRM XYZ APIs (John Bowler):
- The rgb_to_gray code had errors when combined with gamma correction.
- Some pixels were treated as true grey when they weren't and such pixels
- and true grey ones were not gamma corrected (the original value of the
- red component was used instead). APIs to get and set cHRM using color
- space end points have been added and the rgb_to_gray code that defaults
- based on cHRM, and the divide-by-zero bug in png_handle_cHRM (CERT
- VU#477046, CVE-2011-3328, introduced in 1.5.4) have been corrected.
- A considerable number of tests has been added to pngvalid for the
- rgb_to_gray transform.
- Arithmetic errors in rgb_to_gray whereby the calculated gray value was
- truncated to the bit depth rather than rounded have been fixed except in
- the 8-bit non-gamma-corrected case (where consistency seems more important
- than correctness.) The code still has considerable inaccuracies in the
- 8-bit case because 8-bit linear arithmetic is used.
-
-Version 1.5.5beta07 [September 7, 2011]
- Added "$(ARCH)" option to makefile.darwin
- Added SunOS support to configure.ac and Makefile.am
- Changed png_chunk_benign_error() to png_warning() in png.c, in
- png_XYZ_from_xy_checked().
-
-Version 1.5.5beta08 [September 10, 2011]
- Fixed 64-bit compilation errors (gcc). The errors fixed relate
- to conditions where types that are 32 bits in the GCC 32-bit
- world (uLong and png_size_t) become 64 bits in the 64-bit
- world. This produces potential truncation errors which the
- compiler correctly flags.
- Relocated new HAVE_SOLARIS_LD definition in configure.ac
- Constant changes for 64-bit compatibility (removal of L suffixes). The
- 16-bit cases still use "L" as we don't have a 16-bit test system.
-
-Version 1.5.5rc01 [September 15, 2011]
- Removed "L" suffixes in pngpriv.h
-
-Version 1.5.5 [September 22, 2011]
- No changes.
-
-Version 1.5.6beta01 [September 22, 2011]
- Fixed some 64-bit type conversion warnings in pngrtran.c
- Moved row_info from png_struct to a local variable.
- The various interlace mask arrays have been made into arrays of
- bytes and made PNG_CONST and static (previously some arrays were
- marked PNG_CONST and some weren't).
- Additional checks have been added to the transform code to validate the
- pixel depths after the transforms on both read and write.
- Removed some redundant code from pngwrite.c, in png_destroy_write_struct().
- Changed chunk reading/writing code to use png_uint_32 instead of png_byte[4].
- This removes the need to allocate temporary strings for chunk names on
- the stack in the read/write code. Unknown chunk handling still uses the
- string form because this is exposed in the API.
-
-Version 1.5.6beta02 [September 26, 2011]
- Added a note in the manual the png_read_update_info() must be called only
- once with a particular info_ptr.
- Fixed a typo in the definition of the new PNG_STRING_FROM_CHUNK(s,c) macro.
-
-Version 1.5.6beta03 [September 28, 2011]
- Revised test-pngtest.sh to report FAIL when pngtest fails.
- Added "--strict" option to pngtest, to report FAIL when the failure is
- only because the resulting valid files are different.
- Revised CMakeLists.txt to work with mingw and removed some material from
- CMakeLists.txt that is no longer useful in libpng-1.5.
-
-Version 1.5.6beta04 [October 5, 2011]
- Fixed typo in Makefile.in and Makefile.am ("-M Wl" should be "-M -Wl")."
-
-Version 1.5.6beta05 [October 12, 2011]
- Speed up png_combine_row() for interlaced images. This reduces the generality
- of the code, allowing it to be optimized for Adam7 interlace. The masks
- passed to png_combine_row() are now generated internally, avoiding
- some code duplication and localizing the interlace handling somewhat.
- Align png_struct::row_buf - previously it was always unaligned, caused by
- a bug in the code that attempted to align it; the code needs to subtract
- one from the pointer to take account of the filter byte prepended to
- each row.
- Optimized png_combine_row() when rows are aligned. This gains a small
- percentage for 16-bit and 32-bit pixels in the typical case where the
- output row buffers are appropriately aligned. The optimization was not
- previously possible because the png_struct buffer was always misaligned.
- Fixed bug in png_write_chunk_header() debug print, introduced in 1.5.6beta01.
-
-Version 1.5.6beta06 [October 17, 2011]
- Removed two redundant tests for uninitialized row.
- Fixed a relatively harmless memory overwrite in compressed text writing
- with a 1 byte zlib buffer.
- Add ability to call png_read_update_info multiple times to pngvalid.c.
- Fixes for multiple calls to png_read_update_info. These fixes attend to
- most of the errors revealed in pngvalid, however doing the gamma work
- twice results in inaccuracies that can't be easily fixed. There is now
- a warning in the code if this is going to happen.
- Turned on multiple png_read_update_info in pngvalid transform tests.
- Prevent libpng from overwriting unused bits at the end of the image when
- it is not byte aligned, while reading. Prior to libpng-1.5.6 libpng would
- overwrite the partial byte at the end of each row if the row width was not
- an exact multiple of 8 bits and the image is not interlaced.
-
-Version 1.5.6beta07 [October 21, 2011]
- Made png_ptr->prev_row an aligned pointer into png_ptr->big_prev_row
- (Mans Rullgard).
-
-Version 1.5.6rc01 [October 26, 2011]
- Changed misleading "Missing PLTE before cHRM" warning to "Out of place cHRM"
-
-Version 1.5.6rc02 [October 27, 2011]
- Added LSR() macro to defend against buggy compilers that evaluate non-taken
- code branches and complain about out-of-range shifts.
-
-Version 1.5.6rc03 [October 28, 2011]
- Renamed the LSR() macro to PNG_LSR() and added PNG_LSL() macro.
- Fixed compiler warnings with Intel and MSYS compilers. The logical shift
- fix for Microsoft Visual C is required by other compilers, so this
- enables that fix for all compilers when using compile-time constants.
- Under MSYS 'byte' is a name declared in a system header file, so we
- changed the name of a local variable to avoid the warnings that result.
- Added #define PNG_ALIGN_TYPE PNG_ALIGN_NONE to contrib/pngminim/*/pngusr.h
-
-Version 1.5.6 [November 3, 2011]
- No changes.
-
-Version 1.5.7beta01 [November 4, 2011]
- Added support for ARM processor, when decoding all PNG up-filtered rows
- and any other-filtered rows with 3 or 4 bytes per pixel (Mans Rullgard).
- Fixed bug in pngvalid on early allocation failure; fixed type cast in
- pngmem.c; pngvalid would attempt to call png_error() if the allocation
- of a png_struct or png_info failed. This would probably have led to a
- crash. The pngmem.c implementation of png_malloc() included a cast
- to png_size_t which would fail on large allocations on 16-bit systems.
- Fix for the preprocessor of the Intel C compiler. The preprocessor
- splits adjacent @ signs with a space; this changes the concatenation
- token from @-@-@ to PNG_JOIN; that should work with all compiler
- preprocessors.
- Paeth filter speed improvements from work by Siarhei Siamashka. This
- changes the 'Paeth' reconstruction function to improve the GCC code
- generation on x86. The changes are only part of the suggested ones;
- just the changes that definitely improve speed and remain simple.
- The changes also slightly increase the clarity of the code.
-
-Version 1.5.7beta02 [November 11, 2011]
- Check compression_type parameter in png_get_iCCP and remove spurious
- casts. The compression_type parameter is always assigned to, so must
- be non-NULL. The cast of the profile length potentially truncated the
- value unnecessarily on a 16-bit int system, so the cast of the (byte)
- compression type to (int) is specified by ANSI-C anyway.
- Fixed FP division by zero in pngvalid.c; the 'test_pixel' code left
- the sBIT fields in the test pixel as 0, which resulted in a floating
- point division by zero which was irrelevant but causes systems where
- FP exceptions cause a crash. Added code to pngvalid to turn on FP
- exceptions if the appropriate glibc support is there to ensure this is
- tested in the future.
- Updated scripts/pnglibconf.mak and scripts/makefile.std to handle the
- new PNG_JOIN macro.
- Added versioning to pnglibconf.h comments.
- Simplified read/write API initial version; basic read/write tested on
- a variety of images, limited documentation (in the header file.)
- Installed more accurate linear to sRGB conversion tables. The slightly
- modified tables reduce the number of 16-bit values that
- convert to an off-by-one 8-bit value. The "makesRGB.c" code that was used
- to generate the tables is now in a contrib/sRGBtables sub-directory.
-
-Version 1.5.7beta03 [November 17, 2011]
- Removed PNG_CONST from the sRGB table declarations in pngpriv.h and png.c
- 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.
- Fixes for C++ compilation using g++ When libpng source is compiled
- using g++. The compiler imposes C++ rules on the C source; thus it
- is desirable to make the source work with either C or C++ rules
- without throwing away useful error information. This change adds
- png_voidcast to allow C semantic (void*) cases or the corresponding
- C++ static_cast operation, as appropriate.
- Added --noexecstack to assembler file compilation. GCC does not set
- this on assembler compilation, even though it does on C compilation.
- This creates security issues if assembler code is enabled; the
- work-around is to set it by default in the flags for $(CCAS)
- Work around compilers that don't support declaration of const data. Some
- compilers fault 'extern const' data declarations (because the data is
- not initialized); this turns on const-ness only for compilers where
- this is known to work.
-
-Version 1.5.7beta04 [November 17, 2011]
- Since the gcc driver does not recognize the --noexecstack flag, we must
- use the -Wa prefix to have it passed through to the assembler.
- Also removed a duplicate setting of this flag.
- Added files that were omitted from the libpng-1.5.7beta03 zip distribution.
-
-Version 1.5.7beta05 [November 25, 2011]
- Removed "zTXt" from warning in generic chunk decompression function.
- Validate time settings passed to png_set_tIME() and png_convert_to_rfc1123()
- (Frank Busse). Note: This prevented CVE-2015-7981 from affecting
- libpng-1.5.7 and later.
- Added MINGW support to CMakeLists.txt
- Reject invalid compression flag or method when reading the iTXt chunk.
- Backed out 'simplified' API changes. The API seems too complex and there
- is a lack of consensus or enthusiasm for the proposals. The API also
- reveals significant bugs inside libpng (double gamma correction and the
- known bug of being unable to retrieve a corrected palette). It seems
- better to wait until the bugs, at least, are corrected.
- Moved pngvalid.c into contrib/libtests
- Rebuilt Makefile.in, configure, etc., with autoconf-2.68
-
-Version 1.5.7rc01 [December 1, 2011]
- Replaced an "#if" with "#ifdef" in pngrtran.c
- Revised #if PNG_DO_BC block in png.c (use #ifdef and add #else)
-
-Version 1.5.7rc02 [December 5, 2011]
- Revised project files and contrib/pngvalid/pngvalid.c to account for
- the relocation of pngvalid into contrib/libtests.
- Revised pngconf.h to use " __declspec(restrict)" only when MSC_VER >= 1400,
- as in libpng-1.5.4.
- Put CRLF line endings in the owatcom project files.
-
-Version 1.5.7rc03 [December 7, 2011]
- Updated CMakeLists.txt to account for the relocation of pngvalid.c
-
-Version 1.5.7 [December 15, 2011]
- Minor fixes to pngvalid.c for gcc 4.6.2 compatibility to remove warnings
- reported by earlier versions.
- Fixed minor memset/sizeof errors in pngvalid.c.
-
-Version 1.6.0beta01 [December 15, 2011]
- Removed machine-generated configure files from the GIT repository (they will
- continue to appear in the tarball distributions and in the libpng15 and
- earlier GIT branches).
- Restored the new 'simplified' API, which was started in libpng-1.5.7beta02
- but later deleted from libpng-1.5.7beta05.
- Added example programs for the new 'simplified' API.
- Added ANSI-C (C90) headers and require them, and take advantage of the
- change. Also fixed some of the projects/* and contrib/* files that needed
- updates for libpng16 and the move of pngvalid.c.
- With this change the required ANSI-C header files are assumed to exist: the
- implementation must provide float.h, limits.h, stdarg.h and stddef.h and
- libpng relies on limits.h and stddef.h existing and behaving as defined
- (the other two required headers aren't used). Non-ANSI systems that don't
- have stddef.h or limits.h will have to provide an appropriate fake
- containing the relevant types and #defines.
- Dropped support for 16-bit platforms. The use of FAR/far has been eliminated
- and the definition of png_alloc_size_t is now controlled by a flag so
- that 'small size_t' systems can select it if necessary. Libpng 1.6 may
- not currently work on such systems -- it seems likely that it will
- ask 'malloc' for more than 65535 bytes with any image that has a
- sufficiently large row size (rather than simply failing to read such
- images).
- New tools directory containing tools used to generate libpng code.
- Fixed race conditions in parallel make builds. With higher degrees of
- parallelism during 'make' the use of the same temporary file names such
- as 'dfn*' can result in a race where a temporary file from one arm of the
- build is deleted or overwritten in another arm. This changes the
- temporary files for suffix rules to always use $* and ensures that the
- non-suffix rules use unique file names.
-
-Version 1.6.0beta02 [December 21, 2011]
- Correct configure builds where build and source directories are separate.
- The include path of 'config.h' was erroneously made relative in pngvalid.c
- in libpng 1.5.7.
-
-Version 1.6.0beta03 [December 22, 2011]
- Start-up code size improvements, error handler flexibility. These changes
- alter how the tricky allocation of the initial png_struct and png_info
- structures are handled. png_info is now handled in pretty much the same
- way as everything else, except that the allocations handle NULL return
- silently. png_struct is changed in a similar way on allocation and on
- deallocation a 'safety' error handler is put in place (which should never
- be required). The error handler itself is changed to permit mismatches
- in the application and libpng error buffer size; however, this means a
- silent change to the API to return the jmp_buf if the size doesn't match
- the size from the libpng compilation; libpng now allocates the memory and
- this may fail. Overall these changes result in slight code size
- reductions; however, this is a reduction in code that is always executed
- so is particularly valuable. Overall on a 64-bit system the libpng DLL
- decreases in code size by 1733 bytes. pngerror.o increases in size by
- about 465 bytes because of the new functionality.
- Added png_convert_to_rfc1123_buffer() and deprecated png_convert_to_rfc1123()
- to avoid including a spurious buffer in the png_struct.
-
-Version 1.6.0beta04 [December 30, 2011]
- Regenerated configure scripts with automake-1.11.2
- Eliminated png_info_destroy(). It is now used only in png.c and only calls
- one other internal function and memset().
- Enabled png_get_sCAL_fixed() if floating point APIs are enabled. Previously
- it was disabled whenever internal fixed point arithmetic was selected,
- which meant it didn't exist even on systems where FP was available but not
- preferred.
- Added pngvalid.c compile time checks for const APIs.
- Implemented 'restrict' for png_info and png_struct. Because of the way
- libpng works both png_info and png_struct are always accessed via a
- single pointer. This means adding C99 'restrict' to the pointer gives
- the compiler some opportunity to optimize the code. This change allows
- that.
- Moved AC_MSG_CHECKING([if libraries can be versioned]) later to the proper
- location in configure.ac (Gilles Espinasse).
- Changed png_memcpy to C assignment where appropriate. Changed all those
- uses of png_memcpy that were doing a simple assignment to assignments
- (all those cases where the thing being copied is a non-array C L-value).
- Added some error checking to png_set_*() routines.
- Removed the reference to the non-exported function png_memcpy() from
- example.c.
- Fixed the Visual C 64-bit build - it requires jmp_buf to be aligned, but
- it had become misaligned.
- Revised contrib/pngminus/pnm2png.c to avoid warnings when png_uint_32
- and unsigned long are of different sizes.
-
-Version 1.6.0beta05 [January 15, 2012]
- Updated manual with description of the simplified API (copied from png.h)
- Fix bug in pngerror.c: some long warnings were being improperly truncated
- (CVE-2011-3464, bug introduced in libpng-1.5.3beta05).
-
-Version 1.6.0beta06 [January 24, 2012]
- Added palette support to the simplified APIs. This commit
- changes some of the macro definitions in png.h, app code
- may need corresponding changes.
- Increased the formatted warning buffer to 192 bytes.
- Added color-map support to simplified API. This is an initial version for
- review; the documentation has not yet been updated.
- Fixed Min/GW uninstall to remove libpng.dll.a
-
-Version 1.6.0beta07 [January 28, 2012]
- Eliminated Intel icc/icl compiler warnings. The Intel (GCC derived)
- compiler issues slightly different warnings from those issued by the
- current vesions of GCC. This eliminates those warnings by
- adding/removing casts and small code rewrites.
- Updated configure.ac from autoupdate: added --enable-werror option.
- Also some layout regularization and removal of introduced tab characters
- (replaced with 3-character indentation). Obsolete macros identified by
- autoupdate have been removed; the replacements are all in 2.59 so
- the pre-req hasn't been changed. --enable-werror checks for support
- for -Werror (or the given argument) in the compiler. This mimics the
- gcc configure option by allowing -Werror to be turned on safely; without
- the option the tests written in configure itself fail compilation because
- they cause compiler warnings.
- Rewrote autogen.sh to run autoreconf instead of running tools one-by-one.
- Conditionalize the install rules for MINGW and CYGWIN in CMakeLists.txt and
- set CMAKE_LIBRARY_OUTPUT_DIRECTORY to "lib" on all platforms (C. Yapp).
- Freeze libtool files in the 'scripts' directory. This version of autogen.sh
- attempts to dissuade people from running it when it is not, or should not,
- be necessary. In fact, autogen.sh does not work when run in a libpng
- directory extracted from a tar distribution anymore. You must run it in
- a GIT clone instead.
- Added two images to contrib/pngsuite (1-bit and 2-bit transparent grayscale),
- and renamed three whose names were inconsistent with those in
- pngsuite/README.txt.
-
-Version 1.6.0beta08 [February 1, 2012]
- Fixed Image::colormap misalignment in pngstest.c
- Check libtool/libtoolize version number (2.4.2) in configure.ac
- Divide test-pngstest.sh into separate pngstest runs for basic and
- transparent images.
- Moved automake options to AM_INIT_AUTOMAKE in configure.ac
- Added color-tests, silent-rules (Not yet implemented in Makefile.am) and
- version checking to configure.ac
- Improved pngstest speed by not doing redundant tests and add const to
- the background parameter of png_image_finish_read. The --background
- option is now done automagically only when required, so that commandline
- option no longer exists.
- Cleaned up pngpriv.h to consistently declare all functions and data.
- Also eliminated PNG_CONST_DATA, which is apparently not needed but we
- can't be sure until it is gone.
- Added symbol prefixing that allows all the libpng external symbols
- to be prefixed (suggested by Reuben Hawkins).
- Updated "ftbb*.png" list in the owatcom and vstudio projects.
- Fixed 'prefix' builds on clean systems. The generation of pngprefix.h
- should not require itself.
- Updated INSTALL to explain that autogen.sh must be run in a GIT clone,
- not in a libpng directory extracted from a tar distribution.
-
-Version 1.6.0beta09 [February 1, 2012]
- Reverted the prebuilt configure files to libpng-1.6.0beta05 condition.
-
-Version 1.6.0beta10 [February 3, 2012]
- Added Z_SOLO for zlib-1.2.6+ and correct pngstest tests
- Updated list of test images in CMakeLists.txt
- Updated the prebuilt configure files to current condition.
- Revised INSTALL information about autogen.sh; it works in tar distributions.
-
-Version 1.6.0beta11 [February 16, 2012]
- Fix character count in pngstest command in projects/owatcom/pngstest.tgt
- Revised test-pngstest.sh to report PASS/FAIL for each image.
- Updated documentation about the simplified API.
- Corrected estimate of error in libpng png_set_rgb_to_gray API. The API is
- extremely inaccurate for sRGB conversions because it uses an 8-bit
- intermediate linear value and it does not use the sRGB transform, so it
- suffers from the known instability in gamma transforms for values close
- to 0 (see Poynton). The net result is that the calculation has a maximum
- error of 14.99/255; 0.5/255^(1/2.2). pngstest now uses 15 for the
- permitted 8-bit error. This may still not be enough because of arithmetic
- error.
- Removed some unused arrays (with #ifdef) from png_read_push_finish_row().
- Fixed a memory overwrite bug in simplified read of RGB PNG with
- non-linear gamma Also bugs in the error checking in pngread.c and changed
- quite a lot of the checks in pngstest.c to be correct; either correctly
- written or not over-optimistic. The pngstest changes are insufficient to
- allow all possible RGB transforms to be passed; pngstest cmppixel needs
- to be rewritten to make it clearer which errors it allows and then changed
- to permit known inaccuracies.
- Removed tests for no-longer-used *_EMPTY_PLTE_SUPPORTED from pngstruct.h
- Fixed fixed/float API export conditionals. 1) If FIXED_POINT or
- FLOATING_POINT options were switched off, png.h ended up with lone ';'
- characters. This is not valid ANSI-C outside a function. The ';'
- characters have been moved inside the definition of PNG_FP_EXPORT and
- PNG_FIXED_EXPORT. 2) If either option was switched off, the declaration
- of the corresponding functions were completely omitted, even though some
- of them are still used internally. The result is still valid, but
- produces warnings from gcc with some warning options (including -Wall). The
- fix is to cause png.h to declare the functions with PNG_INTERNAL_FUNCTION
- when png.h is included from pngpriv.h.
- Check for invalid palette index while reading paletted PNG. When one is
- found, issue a warning and increase png_ptr->num_palette accordingly.
- Apps are responsible for checking to see if that happened.
-
-Version 1.6.0beta12 [February 18, 2012]
- Do not increase num_palette on invalid_index.
- Relocated check for invalid palette index to pngrtran.c, after unpacking
- the sub-8-bit pixels.
- Fixed CVE-2011-3026 buffer overrun bug. This bug was introduced when
- iCCP chunk support was added at libpng-1.0.6. Deal more correctly with the
- test on iCCP chunk length. Also removed spurious casts that may hide
- problems on 16-bit systems.
-
-Version 1.6.0beta13 [February 24, 2012]
- Eliminated redundant png_push_read_tEXt|zTXt|iTXt|unknown code from
- pngpread.c and use the sequential png_handle_tEXt, etc., in pngrutil.c;
- now that png_ptr->buffer is inaccessible to applications, the special
- handling is no longer useful.
- Added PNG_SAFE_LIMITS feature to pnglibconf.dfa, pngpriv.h, and new
- pngusr.dfa to reset the user limits to safe ones if PNG_SAFE_LIMITS is
- defined. To enable, use "CPPFLAGS=-DPNG_SAFE_LIMITS_SUPPORTED=1" on the
- configure command or put #define PNG_SAFE_LIMITS_SUPPORTED in
- pnglibconf.h.prebuilt and pnglibconf.h.
-
-Version 1.6.0beta14 [February 27, 2012]
- Added information about the new limits in the manual.
- Updated Makefile.in
-
-Version 1.6.0beta15 [March 2, 2012]
- Removed unused "current_text" members of png_struct and the png_free()
- of png_ptr->current_text from pngread.c
- Rewrote pngstest.c for substantial speed improvement.
- Fixed transparent pixel and 16-bit rgb tests in pngstest and removed a
- spurious check in pngwrite.c
- Added PNG_IMAGE_FLAG_FAST for the benefit of applications that store
- intermediate files, or intermediate in-memory data, while processing
- image data with the simplified API. The option makes the files larger
- but faster to write and read. pngstest now uses this by default; this
- can be disabled with the --slow option.
- Improved pngstest fine tuning of error numbers, new test file generator.
- The generator generates images that test the full range of sample values,
- allow the error numbers in pngstest to be tuned and checked. makepng
- also allows generation of images with extra chunks, although this is
- still work-in-progress.
- Added check for invalid palette index while reading.
- Fixed some bugs in ICC profile writing. The code should now accept
- all potentially valid ICC profiles and reject obviously invalid ones.
- It now uses png_error() to do so rather than casually writing a PNG
- without the necessary color data.
- Removed whitespace from the end of lines in all source files and scripts.
-
-Version 1.6.0beta16 [March 6, 2012]
- Relocated palette-index checking function from pngrutil.c to pngtrans.c
- Added palette-index checking while writing.
- Changed png_inflate() and calling routines to avoid overflow problems.
- This is an intermediate check-in that solves the immediate problems and
- introduces one performance improvement (avoiding a copy via png_ptr->zbuf.)
- Further changes will be made to make ICC profile handling more secure.
- Fixed build warnings (MSVC, GCC, GCC v3). Cygwin GCC with default options
- declares 'index' as a global, causing a warning if it is used as a local
- variable. GCC 64-bit warns about assigning a (size_t) (unsigned 64-bit)
- to an (int) (signed 32-bit). MSVC, however, warns about using the
- unary '-' operator on an unsigned value (even though it is well defined
- by ANSI-C to be ~x+1). The padding calculation was changed to use a
- different method. Removed the tests on png_ptr->pass.
- Added contrib/libtests/tarith.c to test internal arithmetic functions from
- png.c. This is a libpng maintainer program used to validate changes to the
- internal arithmetic functions.
- Made read 'inflate' handling like write 'deflate' handling. The read
- code now claims and releases png_ptr->zstream, like the write code.
- The bug whereby the progressive reader failed to release the zstream
- is now fixed, all initialization is delayed, and the code checks for
- changed parameters on deflate rather than always calling
- deflatedEnd/deflateInit.
- Validate the zTXt strings in pngvalid.
- Added code to validate the windowBits value passed to deflateInit2().
- If the call to deflateInit2() is wrong a png_warning will be issued
- (in fact this is harmless, but the PNG data produced may be sub-optimal).
-
-Version 1.6.0beta17 [March 10, 2012]
- Fixed PNG_LIBPNG_BUILD_BASE_TYPE definition.
- Reject all iCCP chunks after the first, even if the first one is invalid.
- Deflate/inflate was reworked to move common zlib calls into single
- functions [rw]util.c. A new shared keyword check routine was also added
- and the 'zbuf' is no longer allocated on progressive read. It is now
- possible to call png_inflate() incrementally. A warning is no longer
- issued if the language tag or translated keyword in the iTXt chunk
- has zero length.
- If benign errors are disabled use maximum window on ancillary inflate.
- This works round a bug introduced in 1.5.4 where compressed ancillary
- chunks could end up with a too-small windowBits value in the deflate
- header.
-
-Version 1.6.0beta18 [March 16, 2012]
- Issue a png_benign_error() instead of png_warning() about bad palette index.
- In pngtest, treat benign errors as errors if "-strict" is present.
- Fixed an off-by-one error in the palette index checking function.
- Fixed a compiler warning under Cygwin (Windows-7, 32-bit system)
- Revised example.c to put text strings in a temporary character array
- instead of directly assigning string constants to png_textp members.
- This avoids compiler warnings when -Wwrite-strings is enabled.
- Added output flushing to aid debugging under Visual Studio. Unfortunately
- this is necessary because the VS2010 output window otherwise simply loses
- the error messages on error (they weren't flushed to the window before
- the process exited, apparently!)
- Added configuration support for benign errors and changed the read
- default. Also changed some warnings in the iCCP and sRGB handling
- from to benign errors. Configuration now makes read benign
- errors warnings and write benign errors to errors by default (thus
- changing the behavior on read). The simplified API always forces
- 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 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.
- Removed erroneous setting of DETECT_UNINITIALIZED and added more
- checks. The code now does a png_error if an attempt is made to do the
- row initialization twice; this is an application error and it has
- serious consequences because the transform data in png_struct is
- changed by each call.
- Added application error reporting and added chunk names to read
- benign errors; also added --strict to pngstest - not enabled
- yet because a warning is produced.
- Avoid the double gamma correction warning in the simplified API.
- This allows the --strict option to pass in the pngstest checks
-
-Version 1.6.0beta20 [March 29, 2012]
- Changed chunk handler warnings into benign errors, incrementally load iCCP
- Added checksum-icc.c to contrib/tools
- Prevent PNG_EXPAND+PNG_SHIFT doing the shift twice.
- Recognize known sRGB ICC profiles while reading; prefer writing the
- iCCP profile over writing the sRGB chunk, controlled by the
- PNG_sRGB_PROFILE_CHECKS option.
- Revised png_set_text_2() to avoid potential memory corruption (fixes
- CVE-2011-3048, also known as CVE-2012-3425).
-
-Version 1.6.0beta21 [April 27, 2012]
- Revised scripts/makefile.darwin: use system zlib; remove quotes around
- architecture list; add missing ppc architecture; add architecture options
- to shared library link; don't try to create a shared lib based on missing
- RELEASE variable.
- Enable png_set_check_for_invalid_index() for both read and write.
- Removed #ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED in pngpriv.h around
- declaration of png_handle_unknown().
- Added -lssp_nonshared in a comment in scripts/makefile.freebsd
- and changed deprecated NOOBJ and NOPROFILE to NO_OBJ and NO_PROFILE.
-
-Version 1.6.0beta22 [May 23, 2012]
- Removed need for -Wno-cast-align with clang. clang correctly warns on
- alignment increasing pointer casts when -Wcast-align is passed. This
- fixes the cases that clang warns about either by eliminating the
- casts from png_bytep to png_uint_16p (pngread.c), or, for pngrutil.c
- where the cast is previously verified or pngstest.c where it is OK, by
- introducing new png_aligncast macros to do the cast in a way that clang
- accepts.
-
-Version 1.6.0beta23 [June 6, 2012]
- Revised CMakeLists.txt to not attempt to make a symlink under mingw.
- Made fixes for new optimization warnings from gcc 4.7.0. The compiler
- performs an optimization which is safe; however it then warns about it.
- Changing the type of 'palette_number' in pngvalid.c removes the warning.
- Do not depend upon a GCC feature macro being available for use in generating
- the linker mapfile symbol prefix.
- Improved performance of new do_check_palette_indexes() function (only
- update the value when it actually increases, move test for whether
- the check is wanted out of the function.
-
-Version 1.6.0beta24 [June 7, 2012]
- Don't check palette indexes if num_palette is 0 (as it can be in MNG files).
-
-Version 1.6.0beta25 [June 16, 2012]
- Revised png_set_keep_unknown_chunks() so num_chunks < 0 means ignore all
- unknown chunks and all known chunks except for IHDR, PLTE, tRNS, IDAT,
- and IEND. Previously it only meant ignore all unknown chunks, the
- same as num_chunks == 0. Revised png_image_skip_unused_chunks() to
- provide a list of chunks to be processed instead of a list of chunks to
- ignore. Revised contrib/gregbook/readpng2.c accordingly.
-
-Version 1.6.0beta26 [July 10, 2012]
- Removed scripts/makefile.cegcc from the *.zip and *.7z distributions; it
- depends on configure, which is not included in those archives.
- Moved scripts/chkfmt to contrib/tools.
- Changed "a+w" to "u+w" in Makefile.in to fix CVE-2012-3386.
-
-Version 1.6.0beta27 [August 11, 2012]
- Do not compile PNG_DEPRECATED, PNG_ALLOC and PNG_PRIVATE when __GNUC__ < 3.
- Do not use __restrict when GNUC is <= 3.1
- Removed references to png_zalloc() and png_zfree() from the manual.
- Fixed configurations where floating point is completely disabled. Because
- of the changes to support symbol prefixing PNG_INTERNAL_FUNCTION declares
- floating point APIs during libpng builds even if they are completely
- disabled. This requires the png floating point types (png_double*) to be
- declared even though the functions are never actually defined. This
- change provides a dummy definition so that the declarations work, yet any
- implementation will fail to compile because of an incomplete type.
- Re-eliminated the use of strcpy() in pngtest.c. An unnecessary use of
- strcpy() was accidentally re-introduced in libpng16; this change replaces
- it with strncpy().
- Eliminated use of png_sizeof(); use sizeof() instead.
- Use a consistent style for (sizeof type) and (sizeof (array))
- Cleanup of png_set_filler(). This function does very different things on
- read and write. In libpng 1.6 the two cases can be distinguished and
- considerable code cleanup, and extra error checking, is possible. This
- makes calls on the write side that have no effect be ignored with a
- png_app_error(), which can be disabled in the app using
- png_set_benign_errors(), and removes the spurious use of usr_channels
- on the read side.
- Insist on autotools 1.12.1 for git builds because there are security issues
- with 1.12 and insisting on anything less would allow 1.12 to be used.
- Removed info_ptr->signature[8] from WRITE-only builds.
- Add some conditions for compiling png_fixed(). This is a small function
- but it requires "-lm" on some platforms.
- Cause pngtest --strict to fail on any warning from libpng (not just errors)
- and cause it not to fail at the comparison step if libpng lacks support
- for writing chunks that it reads from the input (currently only implemented
- for compressed text chunks).
- Make all three "make check" test programs work without READ or WRITE support.
- Now "make check" will succeed even if libpng is compiled with -DPNG_NO_READ
- or -DPNG_NO_WRITE. The tests performed are reduced, but the basic reading
- and writing of a PNG file is always tested by one or more of the tests.
- Consistently use strlen(), memset(), memcpy(), and memcmp() instead of the
- png_strlen(), png_memset(), png_memcpy(), and png_memcmp() macros.
- Removed the png_sizeof(), png_strlen(), png_memset(), png_memcpy(), and
- png_memcmp() macros.
- Work around gcc 3.x and Microsoft Visual Studio 2010 complaints. Both object
- to the split initialization of num_chunks.
-
-Version 1.6.0beta28 [August 29, 2012]
- Unknown handling fixes and clean up. This adds more correct option
- control of the unknown handling, corrects the pre-existing bug where
- the per-chunk 'keep' setting is ignored and makes it possible to skip
- IDAT chunks in the sequential reader (broken in earlier 1.6 versions).
- There is a new test program, test-unknown.c, which is a work in progress
- (not currently part of the test suite). Comments in the header files now
- explain how the unknown handling works.
- Allow fine grain control of unknown chunk APIs. This change allows
- png_set_keep_unknown_chunks() to be turned off if not required and causes
- both read and write to behave appropriately (on read this is only possible
- if the user callback is used to handle unknown chunks). The change
- also removes the support for storing unknown chunks in the info_struct
- if the only unknown handling enabled is via the callback, allowing libpng
- to be configured with callback reading and none of the unnecessary code.
- Corrected fix for unknown handling in pngtest. This reinstates the
- libpng handling of unknown chunks other than vpAg and sTER (including
- unsafe-to-copy chunks which were dropped before) and eliminates the
- repositioning of vpAg and sTER in pngtest.png by changing pngtest.png
- (so the chunks are where libpng would put them).
- Added "tunknown" test and corrected a logic error in png_handle_unknown()
- when SAVE support is absent. Moved the shell test scripts for
- contrib/libtests from the libpng top directory to contrib/libtests.
- png_handle_unknown() must always read or skip the chunk, if
- SAVE_UNKNOWN_CHUNKS is turned off *and* the application does not set
- a user callback an unknown chunk will not be read, leading to a read
- error, which was revealed by the "tunknown" test.
- Cleaned up and corrected ICC profile handling.
- contrib/libtests/makepng: corrected 'rgb' and 'gray' cases. profile_error
- messages could be truncated; made a correct buffer size calculation and
- adjusted pngerror.c appropriately. png_icc_check_* checking improved;
- changed the functions to receive the correct color type of the PNG on read
- or write and check that it matches the color space of the profile (despite
- what the comments said before, there is danger in assuming the app will
- cope correctly with an RGB profile on a grayscale image and, since it
- violates the PNG spec, allowing it is certain to produce inconsistent
- app behavior and might even cause app crashes.) Check that profiles
- contain the tags needed to process the PNG (tags all required by the ICC
- spec). Removed unused PNG_STATIC from pngpriv.h.
-
-Version 1.6.0beta29 [September 4, 2012]
- Fixed the simplified API example programs to add the *colormap parameter
- to several of he API and improved the error message if the version field
- is not set.
- Added contrib/examples/* to the *.zip and *.7z distributions.
- Updated simplified API synopses and description of the png_image structure
- in the manual.
- Made makepng and pngtest produce identical PNGs, add "--relaxed" option
- to pngtest. The "--relaxed" option turns off the benign errors that are
- enabled by default in pre-RC builds. makepng can now write ICC profiles
- where the length has not been extended to a multiple of 4, and pngtest
- now intercepts all libpng errors, allowing the previously-introduced
- "--strict test" on no warnings to actually work.
- Improved ICC profile handling including cHRM chunk generation and fixed
- Cygwin+MSVC build errors. The ICC profile handling now includes more
- checking. Several errors that caused rejection of the profile are now
- handled with a warning in such a way that the invalid profiles will be
- read by default in release (but not pre-RC) builds but will not be
- written by default. The easy part of handling the cHRM chunk is written,
- where the ICC profile contains the required data. The more difficult
- part plus guessing a gAMA value requires code to pass selected RGB values
- through the profile.
-
-Version 1.6.0beta30 [October 24, 2012]
- Changed ICC profile matrix/vector types to not depend on array type rules.
- By the ANSI-C standard the new types should be identical to the previous
- versions, and all known versions of gcc tested with the previous versions
- except for GCC-4.2.1 work with this version. The change makes the ANSI-C
- rule that const applied to an array of elements applies instead to the
- elements in the array moot by explicitly applying const to the base
- elements of the png_icc_matrix and png_icc_vector types. The accidental
- (harmless) 'const' previously applied to the parameters of two of the
- functions have also been removed.
- Added a work around for GCC 4.2 optimization bug.
- Marked the broken (bad white point) original HP sRGB profiles correctly and
- correct comments.
- Added -DZ_SOLO to contrib/pngminim/*/makefile to work with zlib-1.2.7
- Use /MDd for vstudio debug builds. Also added pngunkown to the vstudio
- builds, fixed build errors and corrected a minor exit code error in
- pngvalid if the 'touch' file name is invalid.
- Add updated WARNING file to projects/vstudio from libpng 1.5/vstudio
- Fixed build when using #define PNG_NO_READ_GAMMA in png_do_compose() in
- pngrtran.c (Domani Hannes).
-
-Version 1.6.0beta31 [November 1, 2012]
- Undid the erroneous change to vstudio/pngvalid build in libpng-1.6.0beta30.
- Made pngvalid so that it will build outside the libpng source tree.
- Made builds -DPNG_NO_READ_GAMMA compile (the unit tests still fail).
- Made PNG_NO_READ_GAMMA switch off interfaces that depend on READ_GAMMA.
- Prior to 1.6.0 switching off READ_GAMMA did unpredictable things to the
- interfaces that use it (specifically, png_do_background in 1.4 would
- simply display composite for grayscale images but do composition
- with the incorrect arithmetic for color ones). In 1.6 the semantic
- of -DPNG_NO_READ_GAMMA is changed to simply disable any interface that
- depends on it; this obliges people who set it to consider whether they
- really want it off if they happen to use any of the interfaces in
- question (typically most users who disable it won't).
- Fixed GUIDs in projects/vstudio. Some were duplicated or missing,
- resulting in VS2010 having to update the files.
- Removed non-working ICC profile support code that was mostly added to
- libpng-1.6.0beta29 and beta30. There was too much code for too little
- gain; implementing full ICC color correction may be desirable but is left
- up to applications.
-
-Version 1.6.0beta32 [November 25, 2012]
- Fixed an intermittent SEGV in pngstest due to an uninitialized array element.
- Added the ability for contrib/libtests/makepng.c to make a PNG with just one
- color. This is useful for debugging pngstest color inaccuracy reports.
- Fixed error checking in the simplified write API (Olaf van der Spek)
- Made png_user_version_check() ok to use with libpng version 1.10.x and later.
-
-Version 1.6.0beta33 [December 15, 2012]
- Fixed typo in png.c (PNG_SET_CHUNK_MALLOC_MAX should be PNG_CHUNK_MALLOC_MAX)
- that causes the MALLOC_MAX limit not to work (John Bowler)
- Change png_warning() to png_app_error() in pngwrite.c and comment the
- fall-through condition.
- Change png_warning() to png_app_warning() in png_write_tRNS().
- Rearranged the ARM-NEON optimizations: Isolated the machine specific code
- to the hardware subdirectory and added comments to pngrutil.c so that
- implementors of other optimizations know what to do.
- Fixed cases of unquoted DESTDIR in Makefile.am
- Rebuilt Makefile.in, etc., with autoconf-2.69 and automake-1.12.5.
-
-Version 1.6.0beta34 [December 19, 2012]
- Cleaned up whitespace in the synopsis portion of the manpage "libpng.3"
- Disassembled the version number in scripts/options.awk (necessary for
- building on SunOs).
-
-Version 1.6.0beta35 [December 23, 2012]
- Made default Zlib compression settings be configurable. This adds #defines to
- pnglibconf.h to control the defaults.
- Fixed Windows build issues, enabled ARM compilation. Various warnings issued
- by earlier versions of GCC fixed for Cygwin and Min/GW (which both use old
- GCCs.) ARM support is enabled by default in zlib.props (unsupported by
- Microsoft) and ARM compilation is made possible by deleting the check for
- x86. The test programs cannot be run because they are not signed.
-
-Version 1.6.0beta36 [January 2, 2013]
- Discontinued distributing libpng-1.x.x.tar.bz2.
- Discontinued distributing libpng-1.7.0-1.6.0-diff.txt and similar.
- Rebuilt configure with autoconf-2.69 (inadvertently not done in beta33)
- Fixed 'make distcheck' on SUN OS - libpng.so was not being removed
-
-Version 1.6.0beta37 [January 10, 2013]
- Fixed conceivable but difficult to repro overflow. Also added two test
- programs to generate and test a PNG which should have the problem.
-
-Version 1.6.0beta39 [January 19, 2013]
- Again corrected attempt at overflow detection in png_set_unknown_chunks()
- (CVE-2013-7353). Added overflow detection in png_set_sPLT() and
- png_set_text_2() (CVE-2013-7354).
-
-Version 1.6.0beta40 [January 20, 2013]
- Use consistent handling of overflows in text, sPLT and unknown png_set_* APIs
-
-Version 1.6.0rc01 [January 26, 2013]
- No changes.
-
-Version 1.6.0rc02 [February 4, 2013]
- Added png_get_palette_max() function.
-
-Version 1.6.0rc03 [February 5, 2013]
- Fixed the png_get_palette_max API.
-
-Version 1.6.0rc04 [February 7, 2013]
- Turn serial tests back on (recently turned off by autotools upgrade).
-
-Version 1.6.0rc05 [February 8, 2013]
- Update manual about png_get_palette_max().
-
-Version 1.6.0rc06 [February 9, 2013]
- Fixed missing dependency in --prefix builds The intermediate
- internal 'prefix.h' file can only be generated correctly after
- pnglibconf.h, however the dependency was not in Makefile.am. The
- symptoms are unpredictable depending on the order make chooses to
- build pngprefix.h and pnglibconf.h, often the error goes unnoticed
- because there is a system pnglibconf.h to use instead.
-
-Version 1.6.0rc07 [February 10, 2013]
- Enclosed the new png_get_palette_max in #ifdef PNG_GET_PALETTE_MAX_SUPPORTED
- block, and revised pnglibconf.h and pnglibconf.h.prebuilt accordingly.
-
-Version 1.6.0rc08 [February 10, 2013]
- Fix typo in png.h #ifdef
-
-Version 1.6.0 [February 14, 2013]
- No changes.
-
-Version 1.6.1beta01 [February 16, 2013]
- Made symbol prefixing work with the ARM neon optimizations. Also allow
- pngpriv.h to be included for preprocessor definitions only, so it can
- be used in non-C/C++ files. Back ported from libpng 1.7.
- Made sRGB check numbers consistent.
- Ported libpng 1.5 options.awk/dfn file handling to 1.6, fixed one bug.
- Removed cc -E workround, corrected png_get_palette_max API Tested on
- SUN OS cc 5.9, which demonstrates the tokenization problem previously
- avoided by using /lib/cpp. Since all .dfn output is now protected in
- double quotes unless it is to be macro substituted the fix should
- work everywhere.
- Enabled parallel tests - back ported from libpng-1.7.
- scripts/pnglibconf.dfa formatting improvements back ported from libpng17.
- Fixed a race condition in the creation of the build 'scripts' directory
- while building with a parallel make.
- Use approved/supported Android method to check for NEON, use Linux/POSIX
- 1003.1 API to check /proc/self/auxv avoiding buffer allocation and other
- library calls (ported from libpng15).
-
-Version 1.6.1beta02 [February 19, 2013]
- Use parentheses more consistently in "#if defined(MACRO)" tests.
- Folded long lines.
- Reenabled code to allow zero length PLTE chunks for MNG.
-
-Version 1.6.1beta03 [February 22, 2013]
- Fixed ALIGNED_MEMORY support.
- Added a new configure option:
- --enable-arm-neon=always will stop the run-time checks. New checks
- within arm/arm_init.c will cause the code not to be compiled unless
- __ARM_NEON__ is set. This should make it fail safe (if someone asks
- for it on then the build will fail if it can't be done.)
- Updated the INSTALL document.
-
-Version 1.6.1beta04 [February 27, 2013]
- Revised INSTALL to recommend using CPPFLAGS instead of INCLUDES.
- Revised scripts/makefile.freebsd to respect ZLIBLIB and ZLIBINC.
- Revised scripts/dfn.awk to work with the buggy MSYS awk that has trouble
- with CRLF line endings.
-
-Version 1.6.1beta05 [March 1, 2013]
- Avoid a possible memory leak in contrib/gregbook/readpng.c
-
-Version 1.6.1beta06 [March 4, 2013]
- Better documentation of unknown handling API interactions.
- Corrected Android builds and corrected libpng.vers with symbol
- prefixing. It also makes those tests compile and link on Android.
- Added an API png_set_option() to set optimization options externally,
- providing an alternative and general solution for the non-portable
- run-time tests used by the ARM Neon code, using the PNG_ARM_NEON option.
- The order of settings vs options in pnglibconf.h is reversed to allow
- settings to depend on options and options can now set (or override) the
- defaults for settings.
-
-Version 1.6.1beta07 [March 7, 2013]
- Corrected simplified API default gamma for color-mapped output, added
- a flag to change default. In 1.6.0 when the simplified API was used
- to produce color-mapped output from an input image with no gamma
- information the gamma assumed for the input could be different from
- that assumed for non-color-mapped output. In particular 16-bit depth
- input files were assumed to be sRGB encoded, whereas in the 'direct'
- case they were assumed to have linear data. This was an error. The
- fix makes the simplified API treat all input files the same way and
- adds a new flag to the png_image::flags member to allow the
- application/user to specify that 16-bit files contain sRGB data
- rather than the default linear.
- Fixed bugs in the pngpixel and makepng test programs.
-
-Version 1.6.1beta08 [March 7, 2013]
- Fixed CMakelists.txt to allow building a single variant of the library
- (Claudio Bley):
- Introduced a PNG_LIB_TARGETS variable that lists all activated library
- targets. It is an error if this variable ends up empty, ie. you have
- to build at least one library variant.
- Made the *_COPY targets only depend on library targets actually being build.
- Use PNG_LIB_TARGETS to unify a code path.
- Changed the CREATE_SYMLINK macro to expect the full path to a file as the
- first argument. When symlinking the filename component of that path is
- determined and used as the link target.
- Use copy_if_different in the CREATE_SYMLINK macro.
-
-Version 1.6.1beta09 [March 13, 2013]
- Eliminated two warnings from the Intel C compiler. The warnings are
- technically valid, although a reasonable treatment of division would
- show it to be incorrect.
-
-Version 1.6.1rc01 [March 21, 2013]
- No changes.
-
-Version 1.6.1 [March 28, 2013]
- No changes.
-
-Version 1.6.2beta01 [April 14, 2013]
- Updated documentation of 1.5.x to 1.6.x changes in iCCP chunk handling.
- Fixed incorrect warning of excess deflate data. End condition - the
- warning would be produced if the end of the deflate stream wasn't read
- in the last row. The warning is harmless.
- Corrected the test on user transform changes on read. It was in the
- png_set of the transform function, but that doesn't matter unless the
- transform function changes the rowbuf size, and that is only valid if
- transform_info is called.
- Corrected a misplaced closing bracket in contrib/libtests/pngvalid.c
- (Flavio Medeiros).
- Corrected length written to uncompressed iTXt chunks (Samuli Suominen).
- Bug was introduced in libpng-1.6.0.
-
-Version 1.6.2rc01 [April 18, 2013]
- Added contrib/tools/fixitxt.c, to repair the erroneous iTXt chunk length
- written by libpng-1.6.0 and 1.6.1.
- Disallow storing sRGB information when the sRGB is not supported.
-
-Version 1.6.2rc02 [April 18, 2013]
- Merge pngtest.c with libpng-1.7.0
-
-Version 1.6.2rc03 [April 22, 2013]
- Trivial spelling cleanup.
-
-Version 1.6.2rc04 and 1.6.2rc05 [omitted]
-
-Version 1.6.2rc06 [April 24, 2013]
- Reverted to version 1.6.2rc03. Recent changes to arm/neon support
- have been ported to libpng-1.7.0beta09 and will reappear in version
- 1.6.3beta01.
-
-Version 1.6.2 [April 25, 2013]
- No changes.
-
-Version 1.6.3beta01 [April 25, 2013]
- Revised stack marking in arm/filter_neon.S and configure.ac.
- Ensure that NEON filter stuff is completely disabled when switched 'off'.
- Previously the ARM NEON specific files were still built if the option
- was switched 'off' as opposed to being explicitly disabled.
-
-Version 1.6.3beta02 [April 26, 2013]
- Test for 'arm*' not just 'arm' in the host_cpu configure variable.
- Rebuilt the configure scripts.
-
-Version 1.6.3beta03 [April 30, 2013]
- Expanded manual paragraph about writing private chunks, particularly
- the need to call png_set_keep_unknown_chunks() when writing them.
- Avoid dereferencing NULL pointer possibly returned from
- png_create_write_struct() (Andrew Church).
-
-Version 1.6.3beta05 [May 9, 2013]
- Calculate our own zlib windowBits when decoding rather than trusting the
- CMF bytes in the PNG datastream.
- Added an option to force maximum window size for inflating, which was
- the behavior of libpng15 and earlier, via a new PNG_MAXIMUM_INFLATE_WINDOW
- option for png_set_options().
- Added png-fix-itxt and png-fix-too-far-back to the built programs and
- removed warnings from the source code and timepng that are revealed as
- a result.
- Detect wrong libpng versions linked to png-fix-too-far-back, which currently
- only works with libpng versions that can be made to reliably fail when
- the deflate data contains an out-of-window reference. This means only
- 1.6 and later.
- Fixed gnu issues: g++ needs a static_cast, gcc 4.4.7 has a broken warning
- message which it is easier to work round than ignore.
- Updated contrib/pngminus/pnm2png.c (Paul Stewart):
- Check for EOF
- Ignore "#" delimited comments in input file to pnm2png.c.
- Fixed whitespace handling
- Added a call to png_set_packing()
- Initialize dimension values so if sscanf fails at least we have known
- invalid values.
- Attempt to detect configuration issues with png-fix-too-far-back, which
- requires both the correct libpng and the correct zlib to function
- correctly.
- Check ZLIB_VERNUM for mismatches, enclose #error in quotes
- Added information in the documentation about problems with and fixes for
- the bad CRC and bad iTXt chunk situations.
-
-Version 1.6.3beta06 [May 12, 2013]
- Allow contrib/pngminus/pnm2png.c to compile without WRITE_INVERT and
- WRITE_PACK supported (writes error message that it can't read P1 or
- P4 PBM files).
- Improved png-fix-too-far-back usage message, added --suffix option.
- Revised contrib/pngminim/*/makefile to generate pnglibconf.h with the
- right zlib header files.
- Separated CPPFLAGS and CFLAGS in contrib/pngminim/*/makefile
-
-Version 1.6.3beta07 [June 8, 2013]
- Removed a redundant test in png_set_IHDR().
- Added set(CMAKE_CONFIGURATION_TYPES ...) to CMakeLists.txt (Andrew Hundt)
- Deleted set(CMAKE_BUILD_TYPE) block from CMakeLists.txt
- Enclose the prototypes for the simplified write API in
- #ifdef PNG_STDIO_SUPPORTED/#endif
- Make ARM NEON support work at compile time (not just configure time).
- This moves the test on __ARM_NEON__ into pngconf.h to avoid issues when
- using a compiler that compiles for multiple architectures at one time.
- Removed PNG_FILTER_OPTIMIZATIONS and PNG_ARM_NEON_SUPPORTED from
- pnglibconf.h, allowing more of the decisions to be made internally
- (pngpriv.h) during the compile. Without this, symbol prefixing is broken
- under certain circumstances on ARM platforms. Now only the API parts of
- the optimizations ('check' vs 'api') are exposed in the public header files
- except that the new setting PNG_ARM_NEON_OPT documents how libpng makes the
- decision about whether or not to use the optimizations.
- Protect symbol prefixing against CC/CPPFLAGS/CFLAGS usage.
- Previous iOS/Xcode fixes for the ARM NEON optimizations moved the test
- on __ARM_NEON__ from configure time to compile time. This breaks symbol
- prefixing because the definition of the special png_init_filter_functions
- call was hidden at configure time if the relevant compiler arguments are
- passed in CFLAGS as opposed to CC. This change attempts to avoid all
- the confusion that would result by declaring the init function even when
- it is not used, so that it will always get prefixed.
-
-Version 1.6.3beta08 [June 18, 2013]
- Revised libpng.3 so that "doclifter" can process it.
-
-Version 1.6.3beta09 [June 27, 2013]
- Revised example.c to illustrate use of PNG_DEFAULT_sRGB and PNG_GAMMA_MAC_18
- as parameters for png_set_gamma(). These have been available since
- libpng-1.5.4.
- Renamed contrib/tools/png-fix-too-far-back.c to pngfix.c and revised it
- to check all compressed chunks known to libpng.
-
-Version 1.6.3beta10 [July 5, 2013]
- Updated documentation to show default behavior of benign errors correctly.
- Only compile ARM code when PNG_READ_SUPPORTED is defined.
- Fixed undefined behavior in contrib/tools/pngfix.c and added new strip
- option. pngfix relied on undefined behavior and even a simple change from
- gcc to g++ caused it to fail. The new strip option 'unsafe' has been
- implemented and is the default if --max is given. Option names have
- been clarified, with --strip=transform now stripping the bKGD chunk,
- which was stripped previously with --strip=unused.
- Added all documented chunk types to pngpriv.h
- Unified pngfix.c source with libpng17.
-
-Version 1.6.3rc01 [July 11, 2013]
- No changes.
-
-Version 1.6.3 [July 18, 2013]
- Revised manual about changes in iTXt chunk handling made in libpng-1.6.0.
- Added "/* SAFE */" comments in pngrutil.c and pngrtran.c where warnings
- may be erroneously issued by code-checking applications.
-
-Version 1.6.4beta01 [August 21, 2013]
- Added information about png_set_options() to the manual.
- Delay calling png_init_filter_functions() until a row with nonzero filter
- is found.
-
-Version 1.6.4beta02 [August 30, 2013]
- Fixed inconsistent conditional compilation of png_chunk_unknown_handling()
- prototype, definition, and usage. Made it depend on
- PNG_HANDLE_AS_UNKNOWN_SUPPORTED everywhere.
-
-Version 1.6.4rc01 [September 5, 2013]
- No changes.
-
-Version 1.6.4 [September 12, 2013]
- No changes.
-
-Version 1.6.5 [September 14, 2013]
- Removed two stray lines of code from arm/arm_init.c.
-
-Version 1.6.6 [September 16, 2013]
- Removed two stray lines of code from arm/arm_init.c, again.
-
-Version 1.6.7beta01 [September 30, 2013]
- Revised unknown chunk code to correct several bugs in the NO_SAVE_/NO_WRITE
- combination
- Allow HANDLE_AS_UNKNOWN to work when other options are configured off. Also
- fixed the pngminim makefiles to work when $(MAKEFLAGS) contains stuff
- which terminates the make options (as by default in recent versions of
- Gentoo).
- Avoid up-cast warnings in pngvalid.c. On ARM the alignment requirements of
- png_modifier are greater than that of png_store and as a consequence
- compilation of pngvalid.c results in a warning about increased alignment
- requirements because of the bare cast to (png_modifier*). The code is safe,
- because the pointer is known to point to a stack allocated png_modifier,
- but this change avoids the warning.
- Fixed default behavior of ARM_NEON_API. If the ARM NEON API option was
- compiled without the CHECK option it defaulted to on, not off.
- Check user callback behavior in pngunknown.c. Previous versions compiled
- if SAVE_UNKNOWN was not available but did nothing since the callback
- was never implemented.
- Merged pngunknown.c with 1.7 version and back ported 1.7 improvements/fixes
-
-Version 1.6.7beta02 [October 12, 2013]
- Made changes for compatibility with automake 1.14:
- 1) Added the 'compile' program to the list of programs that must be cleaned
- in autogen.sh
- 2) Added 'subdir-objects' which causes .c files in sub-directories to be
- compiled such that the corresponding .o files are also in the
- sub-directory. This is because automake 1.14 warns that the
- current behavior of compiling to the top level directory may be removed
- in the future.
- 3) Updated dependencies on pnglibconf.h to match the new .o locations and
- added all the files in contrib/libtests and contrib/tools that depend
- on pnglibconf.h
- 4) Added 'BUILD_SOURCES = pnglibconf.h'; this is the automake recommended
- way of handling the dependencies of sources that are machine generated;
- unfortunately it only works if the user does 'make all' or 'make check',
- so the dependencies (3) are still required.
- Cleaned up (char*) casts of zlib messages. The latest version of the Intel C
- compiler complains about casting a string literal as (char*), so copied the
- treatment of z_const from the library code into pngfix.c
- Simplified error message code in pngunknown. The simplification has the
- useful side effect of avoiding a bogus warning generated by the latest
- version of the Intel C compiler (it objects to
- condition ? string-literal : string-literal).
- Make autogen.sh work with automake 1.13 as well as 1.14. Do this by always
- removing the 1.14 'compile' script but never checking for it.
-
-Version 1.6.7beta03 [October 19, 2013]
- Added ARMv8 support (James Yu <james.yu at linaro.org>). Added file
- arm/filter_neon_intrinsics.c; enable with -mfpu=neon.
- Revised pngvalid to generate size images with as many filters as it can
- manage, limited by the number of rows.
- Cleaned up ARM NEON compilation handling. The tests are now in pngpriv.h
- and detect the broken GCC compilers.
-
-Version 1.6.7beta04 [October 26, 2013]
- Allow clang derived from older GCC versions to use ARM intrinsics. This
- causes all clang builds that use -mfpu=neon to use the intrinsics code,
- not the assembler code. This has only been tested on iOS 7. It may be
- necessary to exclude some earlier clang versions but this seems unlikely.
- Changed NEON implementation selection mechanism. This allows assembler
- or intrinsics to be turned on at compile time during the build by defining
- PNG_ARM_NEON_IMPLEMENTATION to the correct value (2 or 1). This macro
- is undefined by default and the build type is selected in pngpriv.h.
-
-Version 1.6.7rc01 [November 2, 2013]
- No changes.
-
-Version 1.6.7rc02 [November 7, 2013]
- Fixed #include in filter_neon_intrinsics.c and ctype macros. The ctype char
- checking macros take an unsigned char argument, not a signed char.
-
-Version 1.6.7 [November 14, 2013]
- No changes.
-
-Version 1.6.8beta01 [November 24, 2013]
- Moved prototype for png_handle_unknown() in pngpriv.h outside of
- the #ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED/#endif block.
- Added "-Wall" to CFLAGS in contrib/pngminim/*/makefile
- Conditionally compile some unused functions reported by -Wall in
- pngminim.
- Fixed 'minimal' builds. Various obviously useful minimal configurations
- don't build because of missing contrib/libtests test programs and
- overly complex dependencies in scripts/pnglibconf.dfa. This change
- adds contrib/conftest/*.dfa files that can be used in automatic build
- scripts to ensure that these configurations continue to build.
- Enabled WRITE_INVERT and WRITE_PACK in contrib/pngminim/encoder.
- Fixed pngvalid 'fail' function declaration on the Intel C Compiler.
- This reverts to the previous 'static' implementation and works round
- the 'unused static function' warning by using PNG_UNUSED().
-
-Version 1.6.8beta02 [November 30, 2013]
- Removed or marked PNG_UNUSED some harmless "dead assignments" reported
- by clang scan-build.
- Changed tabs to 3 spaces in png_debug macros and changed '"%s"m'
- to '"%s" m' to improve portability among compilers.
- Changed png_free_default() to free() in pngtest.c
-
-Version 1.6.8rc01 [December 12, 2013]
- Tidied up pngfix inits and fixed pngtest no-write builds.
-
-Version 1.6.8rc02 [December 14, 2013]
- Handle zero-length PLTE chunk or NULL palette with png_error()
- instead of png_chunk_report(), which by default issues a warning
- rather than an error, leading to later reading from a NULL pointer
- (png_ptr->palette) in png_do_expand_palette(). This is CVE-2013-6954
- and VU#650142. Libpng-1.6.1 through 1.6.7 are vulnerable.
- Libpng-1.6.0 and earlier do not have this bug.
-
-Version 1.6.8 [December 19, 2013]
- No changes.
-
-Version 1.6.9beta01 [December 26, 2013]
- Bookkeeping: Moved functions around (no changes). Moved transform
- function definitions before the place where they are called so that
- they can be made static. Move the intrapixel functions and the
- grayscale palette builder out of the png?tran.c files. The latter
- isn't a transform function and is no longer used internally, and the
- former MNG specific functions are better placed in pngread/pngwrite.c
- Made transform implementation functions static. This makes the internal
- functions called by png_do_{read|write}_transformations static. On an
- x86-64 DLL build (Gentoo Linux) this reduces the size of the text
- segment of the DLL by 1208 bytes, about 0.6%. It also simplifies
- maintenance by removing the declarations from pngpriv.h and allowing
- easier changes to the internal interfaces.
- Rebuilt configure scripts with automake-1.14.1 and autoconf-2.69
- in the tar distributions.
-
-Version 1.6.9beta02 [January 1, 2014]
- Added checks for libpng 1.5 to pngvalid.c. This supports the use of
- this version of pngvalid in libpng 1.5
- Merged with pngvalid.c from libpng-1.7 changes to create a single
- pngvalid.c
- Removed #error macro from contrib/tools/pngfix.c (Thomas Klausner).
- Merged pngrio.c, pngtrans.c, pngwio.c, and pngerror.c with libpng-1.7.0
- Merged libpng-1.7.0 changes to make no-interlace configurations work
- with test programs.
- Revised pngvalid.c to support libpng 1.5, which does not support the
- PNG_MAXIMUM_INFLATE_WINDOW option, so #define it out when appropriate in
- pngvalid.c
- Allow unversioned links created on install to be disabled in configure.
- In configure builds 'make install' changes/adds links like png.h
- and libpng.a to point to the newly installed, versioned, files (e.g.
- libpng17/png.h and libpng17.a). Three new configure options and some
- rearrangement of Makefile.am allow creation of these links to be disabled.
-
-Version 1.6.9beta03 [January 10, 2014]
- Removed potentially misleading warning from png_check_IHDR().
-
-Version 1.6.9beta04 [January 20, 2014]
- Updated scripts/makefile.* to use CPPFLAGS (Cosmin).
- Added clang attribute support (Cosmin).
-
-Version 1.6.9rc01 [January 28, 2014]
- No changes.
-
-Version 1.6.9rc02 [January 30, 2014]
- Quiet an uninitialized memory warning from VC2013 in png_get_png().
-
-Version 1.6.9 [February 6, 2014]
-
-Version 1.6.10beta01 [February 9, 2014]
- Backported changes from libpng-1.7.0beta30 and beta31:
- Fixed a large number of instances where PNGCBAPI was omitted from
- function definitions.
- Added pngimage test program for png_read_png() and png_write_png()
- with two new test scripts.
- Removed dependence on !PNG_READ_EXPAND_SUPPORTED for calling
- png_set_packing() in png_read_png().
- Fixed combination of ~alpha with shift. On read invert alpha, processing
- occurred after shift processing, which causes the final values to be
- outside the range that should be produced by the shift. Reversing the
- order on read makes the two transforms work together correctly and mirrors
- the order used on write.
- Do not read invalid sBIT chunks. Previously libpng only checked sBIT
- values on write, so a malicious PNG writer could therefore cause
- the read code to return an invalid sBIT chunk, which might lead to
- application errors or crashes. Such chunks are now skipped (with
- chunk_benign_error).
- Make png_read_png() and png_write_png() prototypes in png.h depend
- upon PNG_READ_SUPPORTED and PNG_WRITE_SUPPORTED.
- Support builds with unsupported PNG_TRANSFORM_* values. All of the
- PNG_TRANSFORM_* values are always defined in png.h and, because they
- are used for both read and write in some cases, it is not reliable
- to #if out ones that are totally unsupported. This change adds error
- detection in png_read_image() and png_write_image() to do a
- png_app_error() if the app requests something that cannot be done
- and it adds corresponding code to pngimage.c to handle such options
- by not attempting to test them.
-
-Version 1.6.10beta02 [February 23, 2014]
- Moved redefines of png_error(), png_warning(), png_chunk_error(),
- and png_chunk_warning() from pngpriv.h to png.h to make them visible
- to libpng-calling applications.
- Moved OS dependent code from arm/arm_init.c, to allow the included
- implementation of the ARM NEON discovery function to be set at
- build-time and provide sample implementations from the current code in the
- contrib/arm-neon subdirectory. The __linux__ code has also been changed to
- compile and link on Android by using /proc/cpuinfo, and the old linux code
- is in contrib/arm-neon/linux-auxv.c. The new code avoids POSIX and Linux
- dependencies apart from opening /proc/cpuinfo and is C90 compliant.
- Check for info_ptr == NULL early in png_read_end() so we don't need to
- run all the png_handle_*() and depend on them to return if info_ptr == NULL.
- This improves the performance of png_read_end(png_ptr, NULL) and makes
- it more robust against future programming errors.
- Check for __has_extension before using it in pngconf.h, to
- support older Clang versions (Jeremy Sequoia).
- Treat CRC error handling with png_set_crc_action(), instead of with
- png_set_benign_errors(), which has been the case since libpng-1.6.0beta18.
- Use a user warning handler in contrib/gregbook/readpng2.c instead of default,
- so warnings will be put on stderr even if libpng has CONSOLE_IO disabled.
- Added png_ptr->process_mode = PNG_READ_IDAT_MODE in png_push_read_chunk
- after recognizing the IDAT chunk, which avoids an infinite loop while
- reading a datastream whose first IDAT chunk is of zero-length.
- This fixes CERT VU#684412 and CVE-2014-0333.
- Don't recognize known sRGB profiles as sRGB if they have been hacked,
- but don't reject them and don't issue a copyright violation warning.
-
-Version 1.6.10beta03 [February 25, 2014]
- Moved some documentation from png.h to libpng.3 and libpng-manual.txt
- Minor editing of contrib/arm-neon/README and contrib/examples/*.c
-
-Version 1.6.10rc01 [February 27, 2014]
- Fixed typos in the manual and in scripts/pnglibconf.dfa (CFLAGS -> CPPFLAGS
- and PNG_USR_CONFIG -> PNG_USER_CONFIG).
-
-Version 1.6.10rc02 [February 28, 2014]
- Removed unreachable return statement after png_chunk_error()
- in pngrutil.c
-
-Version 1.6.10rc03 [March 4, 2014]
- Un-deprecated png_data_freer().
-
-Version 1.6.10 [March 6, 2014]
- No changes.
-
-Version 1.6.11beta01 [March 17, 2014]
- Use "if (value != 0)" instead of "if (value)" consistently.
- Changed ZlibSrcDir from 1.2.5 to 1.2.8 in projects/vstudio.
- Moved configuration information from the manual to the INSTALL file.
-
-Version 1.6.11beta02 [April 6, 2014]
- Removed #if/#else/#endif from inside two pow() calls in pngvalid.c because
- they were handled improperly by Portland Group's PGI-14.1 - PGI-14.3
- when using its "__builtin_pow()" function.
- Silence 'unused parameter' build warnings (Cosmin Truta).
- $(CP) is now used alongside $(RM_F). Also, use 'copy' instead of 'cp'
- where applicable, and applied other minor makefile changes (Cosmin).
- Don't warn about invalid dimensions exceeding user limits (Cosmin).
- Allow an easy replacement of the default pre-built configuration
- header with a custom header, via the make PNGLIBCONF_H_PREBUILT
- macro (Cosmin).
-
-Version 1.6.11beta03 [April 6, 2014]
- Fixed a typo in pngrutil.c, introduced in libpng-1.5.6, that interferes
- with "blocky" expansion of sub-8-bit interlaced PNG files (Eric Huss).
- Optionally use __builtin_bswap16() in png_do_swap().
-
-Version 1.6.11beta04 [April 19, 2014]
- Made progressive reading of interlaced images consistent with the
- behavior of the sequential reader and consistent with the manual, by
- moving some code out of the PNG_READ_INTERLACING_SUPPORTED blocks. The
- row_callback now receives the proper pass number and unexpanded rows, when
- png_combine_row() isn't built or used, and png_set_interlace_handling()
- is not called.
- Allow PNG_sRGB_PROFILE_CHECKING = (-1) to mean no sRGB profile checking.
-
-Version 1.6.11beta05 [April 26, 2014]
- Do not reject ICC V2 profiles that lack padding (Kai-Uwe Behrmann).
- Relocated closing bracket of the sRGB profile test loop to avoid getting
- "Not recognizing known sRGB profile that has been edited" warning for
- ICC V2 profiles that lack the MD5 signature in the profile header.
-
-Version 1.6.11beta06 [May 19, 2014]
- Added PNG_SKIP_sRGB_CHECK_PROFILE choice for png_set_option().
-
-Version 1.6.11rc01 [May 27, 2014]
- No changes.
-
-Version 1.6.11rc02 [June 3, 2014]
- Test ZLIB_VERNUM instead of PNG_ZLIB_VERNUM in contrib/tools/pngfix.c
-
-Version 1.6.11 [June 5, 2014]
- No changes.
-
-Version 1.6.12rc01 [June 6, 2014]
- Relocated new code from 1.6.11beta06 in png.c to a point after the
- declarations (Max Stepin).
-
-Version 1.6.12rc02 [June 7, 2014]
- Changed file permissions of contrib/tools/intgamma.sh,
- test-driver, and compile from 0644 to 0755 (Cosmin).
-
-Version 1.6.12rc03 [June 8, 2014]
- Ensure "__has_attribute()" macro exists before trying to use it with
- old clang compilers (MacPorts Ticket #43939).
-
-Version 1.6.12 [June 12, 2014]
- No changes.
-
-Version 1.6.13beta01 [July 4, 2014]
- Quieted -Wsign-compare and -Wclobber compiler warnings in
- contrib/pngminus/*.c
- Added "(void) png_ptr;" where needed in contrib/gregbook to quiet
- compiler complaints about unused pointers.
- Split a long output string in contrib/gregbook/rpng2-x.c.
- Added "PNG_SET_OPTION" requirement for sRGB chunk support to pnglibconf.dfa,
- Needed for write-only support (John Bowler).
- Changed "if defined(__ARM_NEON__)" to
- "if (defined(__ARM_NEON__) || defined(__ARM_NEON))" (James Wu).
- Fixed clang no-warning builds: png_digit was defined but never used.
-
-Version 1.6.13beta02 [July 21, 2014]
- Fixed an incorrect separator ("/" should be "\") in scripts/makefile.vcwin32
- (bug report from Wolfgang S. Kechel). Bug was introduced in libpng-1.6.11.
- Also fixed makefile.bc32, makefile.bor, makefile.msc, makefile.intel, and
- makefile.tc3 similarly.
-
-Version 1.6.13beta03 [August 3, 2014]
- Removed scripts/makefile.elf. It has not worked since libpng-1.5.0beta14
- due to elimination of the PNG_FUNCTION_EXPORT and PNG_DATA_EXPORT
- definitions from pngconf.h.
- Ensure that CMakeLists.txt makes the target "lib" directory before making
- symbolic link into it (SourceForge bug report #226 by Rolf Timmermans).
-
-Version 1.6.13beta04 [August 8, 2014]
- Added opinion that the ECCN (Export Control Classification Number) for
- libpng is EAR99 to the README file.
- Eliminated use of "$<" in makefile explicit rules, when copying
- $PNGLIBCONF_H_PREBUILT. This does not work on some versions of make;
- bug introduced in libpng version 1.6.11.
-
-Version 1.6.13rc01 [August 14, 2014]
- Made "ccopts" agree with "CFLAGS" in scripts/makefile.hp* and makefile.*sunu
-
-Version 1.6.13 [August 21, 2014]
- No changes.
-
-Version 1.6.14beta01 [September 14, 2014]
- Guard usage of png_ptr->options with #ifdef PNG_SET_OPTION_SUPPORTED.
- Do not build contrib/tools/pngfix.c when PNG_SETJMP_NOT_SUPPORTED,
- to allow "make" to complete without setjmp support (bug report by
- Claudio Fontana)
- Add "#include <setjmp.h>" to contrib/tools/pngfix.c (John Bowler)
-
-Version 1.6.14beta02 [September 18, 2014]
- Use nanosleep() instead of usleep() in contrib/gregbook/rpng2-x.c
- because usleep() is deprecated.
- Define usleep() in contrib/gregbook/rpng2-x.c if not already defined
- in unistd.h and nanosleep() is not available; fixes error introduced
- in libpng-1.6.13.
- Disable floating point exception handling in pngvalid.c when
- PNG_FLOATING_ARITHMETIC is not supported (bug report by "zootus
- at users.sourceforge.net").
-
-Version 1.6.14beta03 [September 19, 2014]
- Define FE_DIVBYZERO, FE_INVALID, and FE_OVERFLOW in pngvalid.c if not
- already defined. Revert floating point exception handling in pngvalid.c
- to version 1.6.14beta01 behavior.
-
-Version 1.6.14beta04 [September 27, 2014]
- Fixed incorrect handling of the iTXt compression flag in pngrutil.c
- (bug report by Shunsaku Hirata). Bug was introduced in libpng-1.6.0.
-
-Version 1.6.14beta05 [October 1, 2014]
- Added "option READ_iCCP enables READ_COMPRESSED_TEXT" to pnglibconf.dfa
-
-Version 1.6.14beta06 [October 5, 2014]
- Removed unused "text_len" parameter from private function png_write_zTXt().
- Conditionally compile some code in png_deflate_claim(), when
- PNG_WARNINGS_SUPPORTED and PNG_ERROR_TEXT_SUPPORTED are disabled.
- Replaced repeated code in pngpread.c with PNG_PUSH_SAVE_BUFFER_IF_FULL.
- Added "chunk iTXt enables TEXT" and "chunk zTXt enables TEXT"
- to pnglibconf.dfa.
- Removed "option READ_COMPRESSED_TEXT enables READ_TEXT" from pnglibconf.dfa,
- to make it possible to configure a libpng that supports iCCP but not TEXT.
-
-Version 1.6.14beta07 [October 7, 2014]
- Removed "option WRITE_COMPRESSED_TEXT enables WRITE_TEXT" from pnglibconf.dfa
- Only mark text chunks as written after successfully writing them.
-
-Version 1.6.14rc01 [October 15, 2014]
- Fixed some typos in comments.
-
-Version 1.6.14rc02 [October 17, 2014]
- Changed png_convert_to_rfc_1123() to png_convert_to_rfc_1123_buffer()
- in the manual, to reflect the change made in libpng-1.6.0.
- Updated README file to explain that direct access to the png_struct
- and info_struct members has not been permitted since libpng-1.5.0.
-
-Version 1.6.14 [October 23, 2014]
- No changes.
-
-Version 1.6.15beta01 [October 29, 2014]
- Changed "if (!x)" to "if (x == 0)" and "if (x)" to "if (x != 0)"
- Simplified png_free_data().
- Added missing "ptr = NULL" after some instances of png_free().
-
-Version 1.6.15beta02 [November 1, 2014]
- Changed remaining "if (!x)" to "if (x == 0)" and "if (x)" to "if (x != 0)"
-
-Version 1.6.15beta03 [November 3, 2014]
- Added PNG_USE_ARM_NEON configuration flag (Marcin Juszkiewicz).
-
-Version 1.6.15beta04 [November 4, 2014]
- Removed new PNG_USE_ARM_NEON configuration flag and made a one-line
- revision to configure.ac to support ARM on aarch64 instead (John Bowler).
-
-Version 1.6.15beta05 [November 5, 2014]
- Use png_get_libpng_ver(NULL) instead of PNG_LIBPNG_VER_STRING in
- example.c, pngtest.c, and applications in the contrib directory.
- Fixed an out-of-range read in png_user_version_check() (Bug report from
- Qixue Xiao, CVE-2015-8540).
- Simplified and future-proofed png_user_version_check().
- Fixed GCC unsigned int->float warnings. Various versions of GCC
- seem to generate warnings when an unsigned value is implicitly
- converted to double. This is probably a GCC bug but this change
- avoids the issue by explicitly converting to (int) where safe.
- Free all allocated memory in pngimage. The file buffer cache was left
- allocated at the end of the program, harmless but it causes memory
- leak reports from clang.
- Fixed array size calculations to avoid warnings. At various points
- in the code the number of elements in an array is calculated using
- sizeof. This generates a compile time constant of type (size_t) which
- is then typically assigned to an (unsigned int) or (int). Some versions
- of GCC on 64-bit systems warn about the apparent narrowing, even though
- the same compiler does apparently generate the correct, in-range,
- numeric constant. This adds appropriate, safe, casts to make the
- warnings go away.
-
-Version 1.6.15beta06 [November 6, 2014]
- Reverted use png_get_libpng_ver(NULL) instead of PNG_LIBPNG_VER_STRING
- in the manual, example.c, pngtest.c, and applications in the contrib
- directory. It was incorrect advice.
-
-Version 1.6.15beta07 [November 7, 2014]
- Removed #ifdef PNG_16BIT_SUPPORTED/#endif around png_product2(); it is
- needed by png_reciprocal2().
- Added #ifdef PNG_16BIT_SUPPORTED/#endif around png_log16bit() and
- png_do_swap().
- Changed all "#endif /* PNG_FEATURE_SUPPORTED */" to "#endif /* FEATURE */"
-
-Version 1.6.15beta08 [November 8, 2014]
- More housecleaning in *.h
-
-Version 1.6.15rc01 [November 13, 2014]
-
-Version 1.6.15rc02 [November 14, 2014]
- The macros passed in the command line to Borland make were ignored if
- similarly-named macros were already defined in makefiles. This behavior
- is different from POSIX make and other make programs. Surround the
- macro definitions with ifndef guards (Cosmin).
-
-Version 1.6.15rc03 [November 16, 2014]
- Added "-D_CRT_SECURE_NO_WARNINGS" to CFLAGS in scripts/makefile.vcwin32.
- Removed the obsolete $ARCH variable from scripts/makefile.darwin.
-
-Version 1.6.15 [November 20, 2014]
- No changes.
-
-Version 1.6.16beta01 [December 14, 2014]
- Added ".align 2" to arm/filter_neon.S to support old GAS assemblers that
- don't do alignment correctly.
- Revised Makefile.am and scripts/symbols.dfn to work with MinGW/MSYS
- (Bob Friesenhahn).
-
-Version 1.6.16beta02 [December 15, 2014]
- Revised Makefile.am and scripts/*.dfn again to work with MinGW/MSYS;
- renamed scripts/*.dfn to scripts/*.c (John Bowler).
-
-Version 1.6.16beta03 [December 21, 2014]
- Quiet a "comparison always true" warning in pngstest.c (John Bowler).
-
-Version 1.6.16rc01 [December 21, 2014]
- Restored a test on width that was removed from png.c at libpng-1.6.9
- (Bug report by Alex Eubanks, CVE-2015-0973).
-
-Version 1.6.16rc02 [December 21, 2014]
- Undid the update to pngrutil.c in 1.6.16rc01.
-
-Version 1.6.16rc03 [December 21, 2014]
- Fixed an overflow in png_combine_row() with very wide interlaced images
- (Bug report and fix by John Bowler, CVE-2014-9495).
-
-Version 1.6.16 [December 22, 2014]
- No changes.
-
-Version 1.6.17beta01 [January 29, 2015]
- Removed duplicate PNG_SAFE_LIMITS_SUPPORTED handling from pngconf.h
- Corrected the width limit calculation in png_check_IHDR().
- Removed user limits from pngfix. Also pass NULL pointers to
- png_read_row to skip the unnecessary row de-interlace stuff.
- Added testing of png_set_packing() to pngvalid.c
- Regenerated configure scripts in the *.tar distributions with libtool-2.4.4
- Implement previously untested cases of libpng transforms in pngvalid.c
- Fixed byte order in png_do_read_filler() with 16-bit input. Previously
- the high and low bytes of the filler, from png_set_filler() or from
- png_set_add_alpha(), were read in the wrong order.
- Made the check for out-of-range values in png_set_tRNS() detect
- values that are exactly 2^bit_depth, and work on 16-bit platforms.
- Merged some parts of libpng-1.6.17beta01 and libpng-1.7.0beta47.
- Added #ifndef __COVERITY__ where needed in png.c, pngrutil.c and
- pngset.c to avoid warnings about dead code.
- Added "& 0xff" to many instances of expressions that are typecast
- to (png_byte), to avoid Coverity warnings.
-
-Version 1.6.17beta02 [February 7, 2015]
- Work around one more Coverity-scan dead-code warning.
- Do not build png_product2() when it is unused.
-
-Version 1.6.17beta03 [February 17, 2015]
- Display user limits in the output from pngtest.
- Eliminated the PNG_SAFE_LIMITS macro and restored the 1-million-column
- and 1-million-row default limits in pnglibconf.dfa, that can be reset
- by the user at build time or run time. This provides a more robust
- defense against DOS and as-yet undiscovered overflows.
-
-Version 1.6.17beta04 [February 21, 2015]
- Added PNG_WRITE_CUSTOMIZE_COMPRESSION_SUPPORTED macro, on by default.
- Allow user to call png_get_IHDR() with NULL arguments (Reuben Hawkins).
- Rebuilt configure scripts with automake-1.15 and libtool-2.4.6
-
-Version 1.6.17beta05 [February 25, 2015]
- Restored compiling of png_reciprocal2 with PNG_NO_16BIT.
-
-Version 1.6.17beta06 [February 27, 2015]
- Moved png_set_filter() prototype into a PNG_WRITE_SUPPORTED block
- of png.h.
- Avoid runtime checks when converting integer to png_byte with
- Visual Studio (Sergey Kosarevsky)
-
-Version 1.6.17rc01 [March 4, 2015]
- No changes.
-
-Version 1.6.17rc02 [March 9, 2015]
- Removed some comments that the configure script did not handle
- properly from scripts/pnglibconf.dfa and pnglibconf.h.prebuilt.
- Free the unknown_chunks structure even when it contains no data.
-
-Version 1.6.17rc03 [March 12, 2015]
- Updated CMakeLists.txt to add OSX framework, change YES/NO to ON/OFF
- for consistency, and remove some useless tests (Alexey Petruchik).
-
-Version 1.6.17rc04 [March 16, 2015]
- Remove pnglibconf.h, pnglibconf.c, and pnglibconf.out instead of
- pnglibconf.* in "make clean" (Cosmin).
- Fix bug in calculation of maxbits, in png_write_sBIT, introduced
- in libpng-1.6.17beta01 (John Bowler).
-
-Version 1.6.17rc05 [March 21, 2015]
- Define PNG_FILTER_* and PNG_FILTER_VALUE_* in png.h even when WRITE
- is not supported (John Bowler). This fixes an error introduced in
- libpng-1.6.17beta06.
- Reverted "& 0xff" additions of version 1.6.17beta01. Libpng passes
- the Coverity scan without them.
-
-Version 1.6.17rc06 [March 23, 2015]
- Remove pnglibconf.dfn and pnglibconf.pre with "make clean".
- Reformatted some "&0xff" instances to "& 0xff".
- Fixed simplified 8-bit-linear to sRGB alpha. The calculated alpha
- value was wrong. It's not clear if this affected the final stored
- value; in the obvious code path the upper and lower 8-bits of the
- alpha value were identical and the alpha was truncated to 8-bits
- rather than dividing by 257 (John Bowler).
-
-Version 1.6.17 [March 26, 2015]
- No changes.
-
-Version 1.6.18beta01 [April 1, 2015]
- Removed PNG_SET_CHUNK_[CACHE|MALLOC]_LIMIT_SUPPORTED macros. They
- have been combined with PNG_SET_USER_LIMITS_SUPPORTED (resolves
- bug report by Andrew Church).
- Fixed rgb_to_gray checks and added tRNS checks to pngvalid.c. This
- fixes some arithmetic errors that caused some tests to fail on
- some 32-bit platforms (Bug reports by Peter Breitenlohner [i686]
- and Petr Gajdos [i586]).
-
-Version 1.6.18beta02 [April 26, 2015]
- Suppressed some warnings from the Borland C++ 5.5.1/5.82 compiler
- (Bug report by Viktor Szakats).
-
-Version 1.6.18beta03 [May 6, 2015]
- Replaced "unexpected" with an integer (0xabadca11) in pngset.c
- where a long was expected, to avoid a compiler warning when PNG_DEBUG > 1.
- Added contrib/examples/simpleover.c, to demonstrate how to handle
- alpha compositing of multiple images, using the "simplified API"
- and an example PNG generation tool, contrib/examples/genpng.c
- (John Bowler).
-
-Version 1.6.18beta04 [May 20, 2015]
- PNG_RELEASE_BUILD replaces tests where the code depended on the build base
- type and can be defined on the command line, allowing testing in beta
- builds (John Bowler).
- Avoid Coverity issue 80858 (REVERSE NULL) in pngtest.c PNG_DEBUG builds.
- Avoid a harmless potential integer overflow in png_XYZ_from_xy() (Bug
- report from Christopher Ferris).
-
-Version 1.6.18beta05 [May 31, 2015]
- Backport filter selection code from libpng-1.7.0beta51, to combine
- sub_row, up_row, avg_row, and paeth_row into try_row and tst_row.
- Changed png_voidcast(), etc., to voidcast(), etc., in contrib/tools/pngfix.c
- to avoid confusion with the libpng private macros.
- Fixed old cut&paste bug in the weighted filter selection code in
- pngwutil.c, introduced in libpng-0.95, March 1997.
-
-Version 1.6.18beta06 [June 1, 2015]
- Removed WRITE_WEIGHTED_FILTERED code, to save a few kbytes of the
- compiled library size. It never worked properly and as far as we can
- tell, no one uses it. The png_set_filter_heuristics() and
- png_set_filter_heuristics_fixed() APIs are retained but deprecated
- and do nothing.
-
-Version 1.6.18beta07 [June 6, 2015]
- Removed non-working progressive reader 'skip' function. This
- function has apparently never been used. It was implemented
- to support back-door modification of png_struct in libpng-1.4.x
- but (because it does nothing and cannot do anything) was apparently
- never tested (John Bowler).
- Fixed cexcept.h in which GCC 5 now reports that one of the auto
- variables in the Try macro needs to be volatile to prevent value
- being lost over the setjmp (John Bowler).
- Fixed NO_WRITE_FILTER and -Wconversion build breaks (John Bowler).
- Fix g++ build breaks (John Bowler).
- Quieted some Coverity issues in pngfix.c, png-fix-itxt.c, pngvalid.c,
- pngstest.c, and pngimage.c. Most seem harmless, but png-fix-itxt
- would only work with iTXt chunks with length 255 or less.
- Added #ifdef's to contrib/examples programs so people don't try
- to compile them without the minimum required support enabled
- (suggested by Flavio Medeiros).
-
-Version 1.6.18beta08 [June 30, 2015]
- Eliminated the final two Coverity defects (insecure temporary file
- handling in contrib/libtests/pngstest.c; possible overflow of
- unsigned char in contrib/tools/png-fix-itxt.c). To use the "secure"
- file handling, define PNG_USE_MKSTEMP, otherwise "tmpfile()" will
- be used.
- Removed some unused WEIGHTED_FILTER macros from png.h and pngstruct.h
-
-Version 1.6.18beta09 [July 5, 2015]
- Removed some useless typecasts from contrib/tools/png-fix-itxt.c
- Fixed a new signed-unsigned comparison in pngrtran.c (Max Stepin).
- Replaced arbitrary use of 'extern' with #define PNG_LINKAGE_*. To
- preserve API compatibility, the new defines all default to "extern"
- (requested by Jan Nijtmans).
-
-Version 1.6.18rc01 [July 9, 2015]
- Belatedly added Mans Rullgard and James Yu to the list of Contributing
- Authors.
-
-Version 1.6.18rc02 [July 12, 2015]
- Restored unused FILTER_HEURISTIC macros removed at libpng-1.6.18beta08
- to png.h to avoid compatibility warnings.
-
-Version 1.6.18rc03 [July 15, 2015]
- Minor changes to the man page
-
-Version 1.6.18 [July 23, 2015]
- No changes.
-
-Version 1.6.19beta01 [July 30, 2015]
- Updated obsolete information about the simplified API macros in the
- manual pages (Bug report by Arc Riley).
- Avoid potentially dereferencing NULL info_ptr in png_info_init_3().
- Rearranged png.h to put the major sections in the same order as
- in libpng17.
- Eliminated unused PNG_COST_SHIFT, PNG_WEIGHT_SHIFT, PNG_COST_FACTOR, and
- PNG_WEIGHT_FACTOR macros.
- Suppressed some warnings from the Borland C++ 5.5.1/5.82 compiler
- (Bug report by Viktor Szakats). Several warnings remain and are
- unavoidable, where we test for overflow.
- Fixed potential leak of png_pixels in contrib/pngminus/pnm2png.c
- Fixed uninitialized variable in contrib/gregbook/rpng2-x.c
-
-Version 1.6.19beta02 [August 19, 2015]
- Moved config.h.in~ from the "libpng_autotools_files" list to the
- "libpng_autotools_extra" list in autogen.sh because it was causing a
- false positive for missing files (bug report by Robert C. Seacord).
- Removed unreachable "break" statements in png.c, pngread.c, and pngrtran.c
- to suppress clang warnings (Bug report by Viktor Szakats).
- Fixed some bad links in the man page.
- Changed "n bit" to "n-bit" in comments.
- Added signed/unsigned 16-bit safety net. This removes the dubious
- 0x8000 flag definitions on 16-bit systems. They aren't supported
- yet the defs *probably* work, however it seems much safer to do this
- and be advised if anyone, contrary to advice, is building libpng 1.6
- on a 16-bit system. It also adds back various switch default clauses
- for GCC; GCC errors out if they are not present (with an appropriately
- high level of warnings).
- Safely convert num_bytes to a png_byte in png_set_sig_bytes() (Robert
- Seacord).
- Fixed the recently reported 1's complement security issue by replacing
- the value that is illegal in the PNG spec, in both signed and unsigned
- values, with 0. Illegal unsigned values (anything greater than or equal
- to 0x80000000) can still pass through, but since these are not illegal
- in ANSI-C (unlike 0x80000000 in the signed case) the checking that
- occurs later can catch them (John Bowler).
-
-Version 1.6.19beta03 [September 26, 2015]
- Fixed png_save_int_32 when int is not 2's complement (John Bowler).
- Updated libpng16 with all the recent test changes from libpng17,
- including changes to pngvalid.c to ensure that the original,
- distributed, version of contrib/visupng/cexcept.h can be used
- (John Bowler).
- pngvalid contains the correction to the use of SAVE/STORE_
- UNKNOWN_CHUNKS; a bug revealed by changes in libpng 1.7. More
- tests contain the --strict option to detect warnings and the
- pngvalid-standard test has been corrected so that it does not
- turn on progressive-read. There is a separate test which does
- that. (John Bowler)
- Also made some signed/unsigned fixes.
- Make pngstest error limits version specific. Splitting the machine
- generated error structs out to a file allows the values to be updated
- without changing pngstest.c itself. Since libpng 1.6 and 1.7 have
- slightly different error limits this simplifies maintenance. The
- makepngs.sh script has also been updated to more accurately reflect
- current problems in libpng 1.7 (John Bowler).
- Incorporated new test PNG files into make check. tests/pngstest-*
- are changed so that the new test files are divided into 8 groups by
- gamma and alpha channel. These tests have considerably better code
- and pixel-value coverage than contrib/pngsuite; however,coverage is
- still incomplete (John Bowler).
- Removed the '--strict' in 1.6 because of the double-gamma-correction
- warning, updated pngstest-errors.h for the errors detected with the
- new contrib/testspngs PNG test files (John Bowler).
-
-Version 1.6.19beta04 [October 15, 2015]
- Worked around rgb-to-gray issues in libpng 1.6. The previous
- attempts to ignore the errors in the code aren't quite enough to
- deal with the 'channel selection' encoding added to libpng 1.7; abort.
- pngvalid.c is changed to drop this encoding in prior versions.
- Fixed 'pow' macros in pngvalid.c. It is legal for 'pow' to be a
- macro, therefore the argument list cannot contain preprocessing
- directives. Make sure pow is a function where this happens. This is
- a minimal safe fix, the issue only arises in non-performance-critical
- code (bug report by Curtis Leach, fix by John Bowler).
- Added sPLT support to pngtest.c
-
-Version 1.6.19rc01 [October 23, 2015]
- No changes.
-
-Version 1.6.19rc02 [October 31, 2015]
- Prevent setting or writing over-length PLTE chunk (Cosmin Truta).
- Silently truncate over-length PLTE chunk while reading.
- Libpng incorrectly calculated the output rowbytes when the application
- decreased either the number of channels or the bit depth (or both) in
- a user transform. This was safe; libpng overallocated buffer space
- (potentially by quite a lot; up to 4 times the amount required) but,
- from 1.5.4 on, resulted in a png_error (John Bowler).
-
-Version 1.6.19rc03 [November 3, 2015]
- Fixed some inconsequential cut-and-paste typos in png_set_cHRM_XYZ_fixed().
- Clarified COPYRIGHT information to state explicitly that versions
- are derived from previous versions.
- Removed much of the long list of previous versions from png.h and
- libpng.3.
-
-Version 1.6.19rc04 [November 5, 2015]
- Fixed new bug with CRC error after reading an over-length palette
- (bug report by Cosmin Truta) (CVE-2015-8126).
-
-Version 1.6.19 [November 12, 2015]
- Cleaned up coding style in png_handle_PLTE().
-
-Version 1.6.20beta01 [November 20, 2015]
- Avoid potential pointer overflow/underflow in png_handle_sPLT() and
- png_handle_pCAL() (Bug report by John Regehr).
-
-Version 1.6.20beta02 [November 23, 2015]
- Fixed incorrect implementation of png_set_PLTE() that uses png_ptr
- not info_ptr, that left png_set_PLTE() open to the CVE-2015-8126
- vulnerability. Fixes CVE-2015-8472.
-
-Version 1.6.20beta03 [November 24, 2015]
- Backported tests from libpng-1.7.0beta69.
-
-Version 1.6.20rc01 [November 26, 2015]
- Fixed an error in handling of bad zlib CMINFO field in pngfix, found by
- American Fuzzy Lop, reported by Brian Carpenter. inflate() doesn't
- immediately fault a bad CMINFO field; instead a 'too far back' error
- happens later (at least some times). pngfix failed to limit CMINFO to
- the allowed values but then assumed that window_bits was in range,
- triggering an assert. The bug is mostly harmless; the PNG file cannot
- be fixed.
-
-Version 1.6.20rc02 [November 29, 2015]
- In libpng 1.6 zlib initialization was changed to use the window size
- in the zlib stream, not a fixed value. This causes some invalid images,
- where CINFO is too large, to display 'correctly' if the rest of the
- data is valid. This provides a workaround for zlib versions where the
- error arises (ones that support the API change to use the window size
- in the stream).
-
-Version 1.6.20 [December 3, 2015]
- No changes.
-
-Version 1.6.21beta01 [December 11, 2015]
- Fixed syntax "$(command)" in tests/pngstest that some shells other than
- bash could not parse (Bug report by Nelson Beebe). Use `command` instead.
-
-Version 1.6.21beta02 [December 14, 2015]
- Moved png_check_keyword() from pngwutil.c to pngset.c
- Removed LE/BE dependencies in pngvalid, to 'fix' the current problem
- in the BigEndian tests by not testing it, making the BE code the same
- as the LE version.
- Fixes to pngvalid for various reduced build configurations (eliminate unused
- statics) and a fix for the case in rgb_to_gray when the digitize option
- reduces graylo to 0, producing a large error.
-
-Version 1.6.21beta03 [December 18, 2015]
- Widened the 'limit' check on the internally calculated error limits in
- the 'DIGITIZE' case (the code used prior to 1.7 for rgb_to_gray error
- checks) and changed the check to only operate in non-release builds
- (base build type not RC or RELEASE.)
- Fixed undefined behavior in pngvalid.c, undefined because
- (png_byte) << shift is undefined if it changes the signed bit
- (because png_byte is promoted to int). The libpng exported functions
- png_get_uint_32 and png_get_uint_16 handle this. (Bug reported by
- David Drysdale as a result of reports from UBSAN in clang 3.8).
- This changes pngvalid to use BE random numbers; this used to produce
- errors but these should not be fixed as a result of the previous changes.
-
-Version 1.6.21rc01 [January 4, 2016]
- In projects/vstudio, combined readme.txt and WARNING into README.txt
-
-Version 1.6.21rc02 [January 7, 2016]
- Relocated assert() in contrib/tools/pngfix.c, bug found by American
- Fuzzy Lop, reported by Brian Carpenter.
- Marked 'limit' UNUSED in transform_range_check(). This only affects
- release builds.
-
-Version 1.6.21 [January 15, 2016]
- Worked around a false-positive Coverity issue in pngvalid.c.
-
-Version 1.6.22beta01 [January 23, 2016]
- Changed PNG_USE_MKSTEMP to __COVERITY__ to select alternate
- "tmpfile()" implementation in contrib/libtests/pngstest.c
- Fixed NO_STDIO build of pngunknown.c to skip calling png_init_io()
- if there is no stdio.h support.
- Added a png_image_write_to_memory() API and a number of assist macros
- to allow an application that uses the simplified API write to bypass
- stdio and write directly to memory.
- Added some warnings (png.h) and some check code to detect *possible*
- overflow in the ROW_STRIDE and simplified image SIZE macros. This
- disallows image width/height/format that *might* overflow. This is
- a quiet API change that limits in-memory image size (uncompressed) to
- 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 [February 8, 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.
-
-Version 1.6.22beta03 [March 9, 2016]
- Added a common-law trademark notice and export control information
- to the LICENSE file, png.h, and the man page.
- Restored "& 0xff" in png_save_uint_16() and png_save_uint_32() that
- were accidentally removed from libpng-1.6.17.
- Changed PNG_INFO_cHNK and PNG_FREE_cHNK from 0xnnnn to 0xnnnnU in png.h
- (Robert C. Seacord).
- Removed dubious "#if INT_MAX" test from png.h that was added to
- libpng-1.6.19beta02 (John Bowler).
- Add ${INCLUDES} in scripts/genout.cmake.in (Bug report by Nixon Kwok).
- Updated LICENSE to say files in the contrib directory are not
- necessarily under the libpng license, and that some makefiles have
- other copyright owners.
- Added INTEL-SSE2 support (Mike Klein and Matt Sarett, Google, Inc.).
- Made contrib/libtests/timepng more robust. The code no longer gives
- up/fails on invalid PNG data, it just skips it (with error messages).
- The code no longer fails on PNG files with data beyond IEND. Options
- exist to use png_read_png (reading the whole image, not by row) and, in
- that case, to apply any of the supported transforms. This makes for
- more realistic testing; the decoded data actually gets used in a
- meaningful fashion (John Bowler).
- Fixed some misleading indentation (Krishnaraj Bhat).
-
-Version 1.6.22beta04 [April 5, 2016]
- Force GCC compilation to C89 if needed (Dagobert Michelsen).
- SSE filter speed improvements for bpp=3:
- memcpy-free implementations of load3() / store3().
- call load3() only when needed at the end of a scanline.
-
-Version 1.6.22beta05 [April 27, 2016]
- Added PNG_FAST_FILTERS macro (defined as
- PNG_FILTER_NONE|PNG_FILTER_SUB|PNG_FILTER_UP).
- Various fixes for contrib/libtests/timepng.c
- Moved INTEL-SSE code from pngpriv.h into contrib/intel/intel_sse.patch.
- Fixed typo (missing underscore) in #define PNG_READ_16_TO_8_SUPPORTED
- (Bug report by Y.Ohashik).
-
-Version 1.6.22beta06 [May 5, 2016]
- Rebased contrib/intel_sse.patch.
- Quieted two Coverity issues in contrib/libtests/timepng.c.
- Fixed issues with scripts/genout.cmake.in (David Capello, Nixon Kwok):
- Added support to use multiple directories in ZLIBINCDIR variable,
- Fixed CMAKE_C_FLAGS with multiple values when genout is compiled on MSVC,
- Fixed pnglibconf.c compilation on OS X including the sysroot path.
-
-Version 1.6.22rc01 [May 14, 2016]
- No changes.
-
-Version 1.6.22rc02 [May 16, 2016]
- Removed contrib/timepng from default build; it does not build on platforms
- that don't supply clock_gettime().
-
-Version 1.6.22rc03 [May 17, 2016]
- Restored contrib/timepng to default build but check for the presence
- of clock_gettime() in configure.ac and Makefile.am.
-
-Version 1.6.22 [May 26, 2016]
- No changes.
-
-Version 1.6.23beta01 [May 29, 2016]
- Stop a potential memory leak in png_set_tRNS() (Bug report by Ted Ying).
- Fixed the progressive reader to handle empty first IDAT chunk properly
- (patch by Timothy Nikkel). This bug was introduced in libpng-1.6.0 and
- only affected the libpng16 branch.
- Added tests in pngvalid.c to check zero-length IDAT chunks in various
- positions. Fixed the sequential reader to handle these more robustly
- (John Bowler).
-
-Version 1.6.23rc01 [June 2, 2016]
- Corrected progressive read input buffer in pngvalid.c. The previous version
- the code invariably passed just one byte at a time to libpng. The intent
- was to pass a random number of bytes in the range 0..511.
- Moved sse2 prototype from pngpriv.h to contrib/intel/intel_sse.patch.
- Added missing ")" in pngerror.c (Matt Sarrett).
-
-Version 1.6.23rc02 [June 4, 2016]
- Fixed undefined behavior in png_push_save_buffer(). Do not call
- memcpy() with a null source, even if count is zero (Leon Scroggins III).
-
-Version 1.6.23 [June 9, 2016]
- Fixed bad link to RFC2083 in png.5 (Nikola Forro).
-
-Version 1.6.24beta01 [June 11, 2016]
- Avoid potential overflow of the PNG_IMAGE_SIZE macro. This macro
- is not used within libpng, but is used in some of the examples.
-
-Version 1.6.24beta02 [June 23, 2016]
- Correct filter heuristic overflow handling. This was broken when the
- write filter code was moved out-of-line; if there is a single filter and
- the heuristic sum overflows the calculation of the filtered line is not
- completed. In versions prior to 1.6 the code was duplicated in-line
- and the check not performed, so the filter operation completed; however,
- in the multi-filter case where the sum is performed the 'none' filter would
- be selected if all the sums overflowed, even if it wasn't in the filter
- list. The fix to the first problem is simply to provide PNG_SIZE_MAX as
- the current lmins sum value; this means the sum can never exceed it and
- overflows silently. A reasonable compiler that does choose to inline
- the code will simply eliminate the sum check.
- The fix to the second problem is to use high precision arithmetic (this is
- implemented in 1.7), however a simple safe fix here is to chose the lowest
- numbered filter in the list from png_set_filter (this only works if the
- first problem is also fixed) (John Bowler).
- Use a more efficient absolute value calculation on SSE2 (Matthieu Darbois).
- Fixed the case where PNG_IMAGE_BUFFER_SIZE can overflow in the application
- as a result of the application using an increased 'row_stride'; previously
- png_image_finish_read only checked for overflow on the base calculation of
- components. (I.e. it checked for overflow of a 32-bit number on the total
- number of pixel components in the output format, not the possibly padded row
- length and not the number of bytes, which for linear formats is twice the
- number of components.)
- MSVC does not like '-(unsigned)', so replaced it with 0U-(unsigned)
- MSVC does not like (uInt) = -(unsigned) (i.e. as an initializer), unless
- the conversion is explicitly invoked by a cast.
- Put the SKIP definition in the correct place. It needs to come after the
- png.h include (see all the other .c files in contrib/libtests) because it
- depends on PNG_LIBPNG_VER.
- Removed the three compile warning options from the individual project
- files into the zlib.props globals. It increases the warning level from 4
- to All and adds a list of the warnings that need to be turned off. This is
- semi-documentary; the intent is to tell libpng users which warnings have
- been examined and judged non-fixable at present. The warning about
- structure padding is fixable, but it would be a significant change (moving
- structure members around).
-
-Version 1.6.24beta03 [July 4, 2016]
- Optimized absolute value calculation in filter selection, similar to
- code in the PAETH decoder in pngrutil.c. Build with PNG_USE_ABS to
- use this.
- Added pngcp to the build together with a pngcp.dfa configuration test.
- Added high resolution timing to pngcp.
- Added "Common linking failures" section to INSTALL.
- Relocated misplaced #endif in png.c sRGB profile checking.
- Fixed two Coverity issues in pngcp.c.
-
-Version 1.6.24beta04 [July 8, 2016]
- Avoid filter-selection heuristic sum calculations in cases where only one
- filter is a candidate for selection. This trades off code size (added
- private png_setup_*_row_only() functions) for speed.
-
-Version 1.6.24beta05 [July 13, 2016]
- Fixed some indentation to comply with our coding style.
- Added contrib/tools/reindent.
-
-Version 1.6.24beta06 [July 18, 2016]
- Fixed more indentation to comply with our coding style.
- Eliminated unnecessary tests of boolean png_isaligned() vs 0.
-
-Version 1.6.24rc01 [July 25, 2016]
- No changes.
-
-Version 1.6.24rc02 [August 1, 2016]
- Conditionally compile SSE2 headers in contrib/intel/intel_sse.patch
- Conditionally compile png_decompress_chunk().
-
-Version 1.6.24rc03 [August 2, 2016]
- Conditionally compile ARM_NEON headers in pngpriv.h
- Updated contrib/intel/intel_sse.patch
-
-Version 1.6.24[August 4, 2016]
- No changes.
-
-Version 1.6.25beta01 [August 12, 2016]
- Reject oversized iCCP profile immediately.
- Cleaned up PNG_DEBUG compile of pngtest.c.
- Conditionally compile png_inflate().
-
-Version 1.6.25beta02 [August 18, 2016]
- Don't install pngcp; it conflicts with pngcp in the pngtools package.
- Minor editing of INSTALL, (whitespace, added copyright line)
-
-Version 1.6.25rc01 [August 24, 2016]
- No changes.
-
-Version 1.6.25rc02 [August 29, 2016]
- Added MIPS support (Mandar Sahastrabuddhe <Mandar.Sahastrabuddhe@imgtec.com>).
- Only the UP filter is currently implemented.
-
-Version 1.6.25rc03 [August 29, 2016]
- Rebased contrib/intel/intel_sse.patch after the MIPS implementation.
-
-Version 1.6.25rc04 [August 30, 2016]
- Added MIPS support for SUB, AVG, and PAETH filters (Mandar Sahastrabuddhe).
-
-Version 1.6.25rc05 [August 30, 2016]
- Rebased contrib/intel/intel_sse.patch after the MIPS implementation update..
-
-Version 1.6.25 [September 1, 2016]
- No changes.
-
-Version 1.6.26beta01 [September 26, 2016]
- Fixed handling zero length IDAT in pngfix (bug report by Agostino Sarubbo,
- bugfix by John Bowler).
- Do not issue a png_error() on read in png_set_pCAL() because png_handle_pCAL
- has allocated memory that libpng needs to free.
- Conditionally compile png_set_benign_errors() in pngread.c and pngtest.c
- Issue a png_benign_error instead of a png_error on ADLER32 mismatch
- while decoding compressed data chunks.
- Changed PNG_ZLIB_VERNUM to ZLIB_VERNUM in pngpriv.h, pngstruct.h, and
- pngrutil.c.
- If CRC handling of critical chunks has been set to PNG_CRC_QUIET_USE,
- ignore the ADLER32 checksum in the IDAT chunk as well as the chunk CRCs.
- Issue png_benign_error() on ADLER32 checksum mismatch instead of png_error().
- Add tests/badcrc.png and tests/badadler.png to tests/pngtest.
- Merged pngtest.c with libpng-1.7.0beta84/pngtest.c
-
-Version 1.6.26beta02 [October 1, 2016]
- Updated the documentation about CRC and ADLER32 handling.
- Quieted 117 warnings from clang-3.8 in pngtrans.c, pngread.c,
- pngwrite.c, pngunknown.c, and pngvalid.c.
- Quieted 58 (out of 144) -Wconversion compiler warnings by changing
- flag definitions in pngpriv.h from 0xnnnn to 0xnnnnU and trivial changes
- in png.c, pngread.c, and pngwutil.c.
-
-Version 1.6.26beta03 [October 2, 2016]
- Removed contrib/libtests/*.orig and *.rej that slipped into the tarballs.
- Quieted the 86 remaining -Wconversion compiler warnings by
- revising the png_isaligned() macro and trivial changes in png.c,
- pngerror.c, pngget.c, pngmem.c, pngset.c, pngrtran.c, pngrutil.c,
- pngwtran.c, pngwrite.c, and pngwutil.c.
-
-Version 1.6.26beta04 [October 3, 2016]
- Quieted (bogus?) clang warnings about "absolute value has no effect"
- when PNG_USE_ABS is defined.
- Fixed offsets in contrib/intel/intel_sse.patch
-
-Version 1.6.26beta05 [October 6, 2016]
- Changed integer constant 4294967294 to unsigned 4294967294U in pngconf.h
- to avoid a signed/unsigned compare in the preprocessor.
-
-Version 1.6.26beta06 [October 7, 2016]
- Use zlib-1.2.8.1 inflateValidate() instead of inflateReset2() to
- optionally avoid ADLER32 evaluation.
-
-Version 1.6.26rc01 [October 12, 2016]
- No changes.
-
-Version 1.6.26 [October 20, 2016]
- Cosmetic change, "ptr != 0" to "ptr != NULL" in png.c and pngrutil.c
- Despammed email addresses (replaced "@" with " at ").
-
-Version 1.6.27beta01 [November 2, 2016]
- Restrict the new ADLER32-skipping to IDAT chunks. It broke iCCP chunk
- handling: an erroneous iCCP chunk would throw a png_error and reject the
- entire PNG image instead of rejecting just the iCCP chunk with a warning,
- if built with zlib-1.2.8.1.
-
-Version 1.6.27rc01 [December 27, 2016]
- Control ADLER32 checking with new PNG_IGNORE_ADLER32 option. Fixes
- an endless loop when handling erroneous ADLER32 checksums; bug
- introduced in libpng-1.6.26.
- Removed the use of a macro containing the pre-processor 'defined'
- operator. It is unclear whether this is valid; a macro that
- "generates" 'defined' is not permitted, but the use of the word
- "generates" within the C90 standard seems to imply more than simple
- substitution of an expression itself containing a well-formed defined
- operation.
- Added ARM support to CMakeLists.txt (Andreas Franek).
-
-Version 1.6.27 [December 29, 2016]
- Fixed a potential null pointer dereference in png_set_text_2() (bug report
- and patch by Patrick Keshishian, CVE-2016-10087).
-
-Version 1.6.28rc01 [January 3, 2017]
- Fixed arm/aarch64 detection in CMakeLists.txt (Gianfranco Costamagna).
- Added option to Cmake build allowing a custom location of zlib to be
- specified in a scenario where libpng is being built as a subproject
- alongside zlib by another project (Sam Serrels).
- Changed png_ptr->options from a png_byte to png_uint_32, to accommodate
- up to 16 options.
-
-Version 1.6.28rc02 [January 4, 2017]
- Added "include(GNUInstallDirs)" to CMakeLists.txt (Gianfranco Costamagna).
- Moved SSE2 optimization code into the main libpng source directory.
- Configure libpng with "configure --enable-intel-sse" or compile
- libpng with "-DPNG_INTEL_SSE" in CPPFLAGS to enable it.
-
-Version 1.6.28rc03 [January 4, 2017]
- Backed out the SSE optimization and last CMakeLists.txt to allow time for QA.
-
-Version 1.6.28 [January 5, 2017]
- No changes.
-
-Version 1.6.29beta01 [January 12, 2017]
- Readded "include(GNUInstallDirs)" to CMakeLists.txt (Gianfranco Costamagna).
- Moved SSE2 optimization code into the main libpng source directory.
- Configure libpng with "configure --enable-intel-sse" or compile
- libpng with "-DPNG_INTEL_SSE" in CPPFLAGS to enable it.
- Simplified conditional compilation in pngvalid.c, for AIX (Michael Felt).
-
-Version 1.6.29beta02 [February 22, 2017]
- Avoid conditional directives that break statements in pngrutil.c (Romero
- Malaquias)
- The contrib/examples/pngtopng.c recovery code was in the wrong "if"
- branches; the comments were correct.
- Added code for PowerPC VSX optimisation (Vadim Barkov).
-
-Version 1.6.29beta03 [March 1, 2017]
- Avoid potential overflow of shift operations in png_do_expand() (Aaron Boxer).
- Change test ZLIB_VERNUM >= 0x1281 to ZLIB_VERNUM >= 0x1290 in pngrutil.c
- because Solaris 11 distributes zlib-1.2.8.f that is older than 1.2.8.1,
- as suggested in zlib FAQ, item 24.
- Suppress clang warnings about implicit sign changes in png.c
-
-Version 1.6.29 [March 16, 2017]
- No changes.
-
-Version 1.6.30beta01 [April 1, 2017]
- Added missing "$(CPPFLAGS)" to the compile line for c.pic.o in
- makefile.linux and makefile.solaris-x86 (Cosmin).
- Revised documentation of png_get_error_ptr() in the libpng manual.
- Silence clang -Wcomma and const drop warnings (Viktor Szakats).
- Update Sourceforge URLs in documentation (https instead of http).
-
-Version 1.6.30beta02 [April 22, 2017]
- Document need to check for integer overflow when allocating a pixel
- buffer for multiple rows in contrib/gregbook, contrib/pngminus,
- example.c, and in the manual (suggested by Jaeseung Choi). This
- is similar to the bug reported against pngquant in CVE-2016-5735.
- Removed reference to the obsolete PNG_SAFE_LIMITS macro in the documentation.
-
-Version 1.6.30beta03 [May 22, 2017]
- Check for integer overflow in contrib/visupng and contrib/tools/genpng.
- Do not double evaluate CMAKE_SYSTEM_PROCESSOR in CMakeLists.txt.
- Test CMAKE_HOST_WIN32 instead of WIN32 in CMakeLists.txt.
- Fix some URL in documentation.
-
-Version 1.6.30beta04 [June 7, 2017]
- Avoid writing an empty IDAT when the last IDAT exactly fills the
- compression buffer (bug report by Brian Baird). This bug was
- introduced in libpng-1.6.0.
-
-Version 1.6.30rc01 [June 14, 2017]
- No changes.
-
-Version 1.6.30rc02 [June 25, 2017]
- Update copyright year in pnglibconf.h, make ltmain.sh executable.
- Add a reference to the libpng.download site in README.
-
-Version 1.6.30 [June 28, 2017]
- No changes.
-
-Version 1.6.31beta01 [July 5, 2017]
- Guard the definition of _POSIX_SOURCE in pngpriv.h (AIX already defines it;
- bug report by Michael Felt).
- Revised pngpriv.h to work around failure to compile arm/filter_neon.S
- ("typedef" directive is unrecognized by the assembler). The problem
- was introduced in libpng-1.6.30beta01.
- Added "Requires: zlib" to libpng.pc.in (Pieter Neerincx).
- Added special case for FreeBSD in arm/filter_neon.S (Maya Rashish).
-
-Version 1.6.31beta02 [July 8, 2017]
- Added instructions for disabling hardware optimizations in INSTALL.
- Added "--enable-hardware-optimizations" configuration flag to enable
- or disable all hardware optimizations with one flag.
-
-Version 1.6.31beta03 [July 9, 2017]
- Updated CMakeLists.txt to add INTEL_SSE and MIPS_MSA platforms.
- Changed "int" to "png_size_t" in intel/filter_sse2.c to prevent
- possible integer overflow (Bug report by John Bowler).
- Quieted "declaration after statement" warnings in intel/filter_sse2.c.
- Added scripts/makefile-linux-opt, which has hardware optimizations enabled.
-
-Version 1.6.31beta04 [July 11, 2017]
- Removed one of the GCC-7.1.0 'strict-overflow' warnings that result when
- integers appear on both sides of a compare. Worked around the others by
- forcing the strict-overflow setting in the relevant functions to a level
- where they are not reported (John Bowler).
- Changed "FALL THROUGH" comments to "FALLTHROUGH" because GCC doesn't like
- the space.
- Worked around some C-style casts from (void*) because g++ 5.4.0 objects
- to them.
- Increased the buffer size for 'sprint' to pass the gcc 7.1.0 'sprint
- overflow' check that is on by default with -Wall -Wextra.
-
-Version 1.6.31beta05 [July 13, 2017]
- Added eXIf chunk support.
-
-Version 1.6.31beta06 [July 17, 2017]
- Added a minimal eXIf chunk (with Orientation and FocalLengthIn35mmFilm
- tags) to pngtest.png.
-
-Version 1.6.31beta07 [July 18, 2017]
- Revised the eXIf chunk in pngtest.png to fix "Bad IFD1 Directory" warning.
-
-Version 1.6.31rc01 [July 19, 2017]
- No changes.
-
-Version 1.6.31rc02 [July 25, 2017]
- Fixed typo in example.c (png_free_image should be png_image_free) (Bug
- report by John Smith)
-
-Version 1.6.31 [July 27, 2017]
- No changes.
-
-Version 1.6.32beta01 [July 31, 2017]
- Avoid possible NULL dereference in png_handle_eXIf when benign_errors
- are allowed. Avoid leaking the input buffer "eXIf_buf".
- Eliminated png_ptr->num_exif member from pngstruct.h and added num_exif
- to arguments for png_get_eXIf() and png_set_eXIf().
- Added calls to png_handle_eXIf(() in pngread.c and png_write_eXIf() in
- pngwrite.c, and made various other fixes to png_write_eXIf().
- Changed name of png_get_eXIF and png_set_eXIf() to png_get_eXIf_1() and
- png_set_eXIf_1(), respectively, to avoid breaking API compatibility
- with libpng-1.6.31.
-
-Version 1.6.32beta02 [August 1, 2017]
- Updated contrib/libtests/pngunknown.c with eXIf chunk.
-
-Version 1.6.32beta03 [August 2, 2017]
- Initialized btoa[] in pngstest.c
- Stop memory leak when returning from png_handle_eXIf() with an error
- (Bug report from the OSS-fuzz project).
-
-Version 1.6.32beta04 [August 2, 2017]
- Replaced local eXIf_buf with info_ptr-eXIf_buf in png_handle_eXIf().
- Update libpng.3 and libpng-manual.txt about eXIf functions.
-
-Version 1.6.32beta05 [August 2, 2017]
- Restored png_get_eXIf() and png_set_eXIf() to maintain API compatibility.
-
-Version 1.6.32beta06 [August 2, 2017]
- Removed png_get_eXIf_1() and png_set_eXIf_1().
-
-Version 1.6.32beta07 [August 3, 2017]
- Check length of all chunks except IDAT against user limit to fix an
- OSS-fuzz issue (Fixes CVE-2017-12652).
-
-Version 1.6.32beta08 [August 3, 2017]
- Check length of IDAT against maximum possible IDAT size, accounting
- for height, rowbytes, interlacing and zlib/deflate overhead.
- Restored png_get_eXIf_1() and png_set_eXIf_1(), because strlen(eXIf_buf)
- does not work (the eXIf chunk data can contain zeroes).
-
-Version 1.6.32beta09 [August 3, 2017]
- Require cmake-2.8.8 in CMakeLists.txt. Revised symlink creation,
- no longer using deprecated cmake LOCATION feature (Clifford Yapp).
- Fixed five-byte error in the calculation of IDAT maximum possible size.
-
-Version 1.6.32beta10 [August 5, 2017]
- Moved chunk-length check into a png_check_chunk_length() private
- function (Suggested by Max Stepin).
- Moved bad pngs from tests to contrib/libtests/crashers
- Moved testing of bad pngs into a separate tests/pngtest-badpngs script
- Added the --xfail (expected FAIL) option to pngtest.c. It writes XFAIL
- in the output but PASS for the libpng test.
- Require cmake-3.0.2 in CMakeLists.txt (Clifford Yapp).
- Fix "const" declaration info_ptr argument to png_get_eXIf_1() and the
- num_exif argument to png_get_eXIf_1() (Github Issue 171).
-
-Version 1.6.32beta11 [August 7, 2017]
- Added "eXIf" to "chunks_to_ignore[]" in png_set_keep_unknown_chunks().
- Added huge_IDAT.png and empty_ancillary_chunks.png to testpngs/crashers.
- Make pngtest --strict, --relax, --xfail options imply -m (multiple).
- Removed unused chunk_name parameter from png_check_chunk_length().
- Relocated setting free_me for eXIf data, to stop an OSS-fuzz leak.
- Initialize profile_header[] in png_handle_iCCP() to fix OSS-fuzz issue.
- Initialize png_ptr->row_buf[0] to 255 in png_read_row() to fix OSS-fuzz UMR.
- Attempt to fix a UMR in png_set_text_2() to fix OSS-fuzz issue.
- Increase minimum zlib stream from 9 to 14 in png_handle_iCCP(), to account
- for the minimum 'deflate' stream, and relocate the test to a point
- after the keyword has been read.
- Check that the eXIf chunk has at least 2 bytes and begins with "II" or "MM".
-
-Version 1.6.32rc01 [August 18, 2017]
- Added a set of "huge_xxxx_chunk.png" files to contrib/testpngs/crashers,
- one for each known chunk type, with length = 2GB-1.
- Check for 0 return from png_get_rowbytes() and added some (size_t) typecasts
- in contrib/pngminus/*.c to stop some Coverity issues (162705, 162706,
- and 162707).
- Renamed chunks in contrib/testpngs/crashers to avoid having files whose
- names differ only in case; this causes problems with some platforms
- (github issue #172).
-
-Version 1.6.32rc02 [August 22, 2017]
- Added contrib/oss-fuzz directory which contains files used by the oss-fuzz
- project (https://github.com/google/oss-fuzz/tree/master/projects/libpng).
-
-Version 1.6.32 [August 24, 2017]
- No changes.
-
-Version 1.6.33beta01 [August 28, 2017]
- Added PNGMINUS_UNUSED macro to contrib/pngminus/p*.c and added missing
- parenthesis in contrib/pngminus/pnm2png.c (bug report by Christian Hesse).
- Fixed off-by-one error in png_do_check_palette_indexes() (Bug report
- by Mick P., Source Forge Issue #269).
-
-Version 1.6.33beta02 [September 3, 2017]
- Initialize png_handler.row_ptr in contrib/oss-fuzz/libpng_read_fuzzer.cc
- to fix shortlived oss-fuzz issue 3234.
- Compute a larger limit on IDAT because some applications write a deflate
- buffer for each row (Bug report by Andrew Church).
- Use current date (DATE) instead of release-date (RDATE) in last
- changed date of contrib/oss-fuzz files.
- Enabled ARM support in CMakeLists.txt (Bernd Kuhls).
-
-Version 1.6.33beta03 [September 14, 2017]
- Fixed incorrect typecast of some arguments to png_malloc() and
- png_calloc() that were png_uint_32 instead of png_alloc_size_t
- (Bug report by "irwir" in Github libpng issue #175).
- Use pnglibconf.h.prebuilt when building for ANDROID with cmake (Github
- issue 162, by rcdailey).
-
-Version 1.6.33rc01 [September 20, 2017]
- Initialize memory allocated by png_inflate to zero, using memset, to
- stop an oss-fuzz "use of uninitialized value" detection in png_set_text_2()
- due to truncated iTXt or zTXt chunk.
- Initialize memory allocated by png_read_buffer to zero, using memset, to
- stop an oss-fuzz "use of uninitialized value" detection in
- png_icc_check_tag_table() due to truncated iCCP chunk.
- Removed a redundant test (suggested by "irwir" in Github issue #180).
-
-Version 1.6.33rc02 [September 23, 2017]
- Added an interlaced version of each file in contrib/pngsuite.
- Relocate new memset() call in pngrutil.c.
- Removed more redundant tests (suggested by "irwir" in Github issue #180).
- Add support for loading images with associated alpha in the Simplified
- API (Samuel Williams).
-
-Version 1.6.33 [September 28, 2017]
- Revert contrib/oss-fuzz/libpng_read_fuzzer.cc to libpng-1.6.32 state.
- Initialize png_handler.row_ptr in contrib/oss-fuzz/libpng_read_fuzzer.cc
- Add end_info structure and png_read_end() to the libpng fuzzer.
-
-Version 1.6.34 [September 29, 2017]
- Removed contrib/pngsuite/i*.png; some of them caused test failures.
-
-Version 1.6.35beta01 [March 6, 2018]
- Restored 21 of the contrib/pngsuite/i*.png, which do not cause test
- failures. Placed the remainder in contrib/pngsuite/interlaced/i*.png.
- Added calls to png_set_*() transforms commonly used by browsers to
- the fuzzer.
- Removed some unnecessary brackets in pngrtran.c
- Fixed miscellaneous typos (Patch by github user "luzpaz").
- Change "ASM C" to "C ASM" in CMakeLists.txt
- Fixed incorrect handling of bKGD chunk in sub-8-bit files (Cosmin)
- Added hardware optimization directories to zip and 7z distributions.
- Fixed incorrect bitmask for options.
- Fixed many spelling typos.
-
-Version 1.6.35beta02 [March 28, 2018]
- Make png_get_iCCP consistent with man page (allow compression-type argument
- to be NULL, bug report by Lenard Szolnoki).
-
-Version 1.6.35 [July 15, 2018]
- Replaced the remaining uses of png_size_t with size_t (Cosmin)
- Fixed the calculation of row_factor in png_check_chunk_length
- (reported by Thuan Pham in SourceForge issue #278)
- Added missing parentheses to a macro definition
- (suggested by "irwir" in GitHub issue #216)
-
-Version 1.6.36 [December 1, 2018]
- Optimized png_do_expand_palette for ARM processors.
- Improved performance by around 10-22% on a recent ARM Chromebook.
- (Contributed by Richard Townsend, ARM Holdings)
- Fixed manipulation of machine-specific optimization options.
- (Contributed by Vicki Pfau)
- Used memcpy instead of manual pointer arithmetic on Intel SSE2.
- (Contributed by Samuel Williams)
- Fixed build errors with MSVC on ARM64.
- (Contributed by Zhijie Liang)
- Fixed detection of libm in CMakeLists.
- (Contributed by Cameron Cawley)
- Fixed incorrect creation of pkg-config file in CMakeLists.
- (Contributed by Kyle Bentley)
- Fixed the CMake build on Windows MSYS by avoiding symlinks.
- Fixed a build warning on OpenBSD.
- (Contributed by Theo Buehler)
- Fixed various typos in comments.
- (Contributed by "luz.paz")
- Raised the minimum required CMake version from 3.0.2 to 3.1.
- Removed yet more of the vestigial support for pre-ANSI C compilers.
- Removed ancient makefiles for ancient systems that have been broken
- across all previous libpng-1.6.x versions.
- Removed the Y2K compliance statement and the export control
- information.
- Applied various code style and documentation fixes.
-
-Version 1.6.37 [April 14, 2019]
- Fixed a use-after-free vulnerability (CVE-2019-7317) in png_image_free.
- Fixed a memory leak in the ARM NEON implementation of png_do_expand_palette.
- Fixed a memory leak in pngtest.c.
- Fixed two vulnerabilities (CVE-2018-14048, CVE-2018-14550) in
- contrib/pngminus; refactor.
- Changed the license of contrib/pngminus to MIT; refresh makefile and docs.
- (Contributed by Willem van Schaik)
- Fixed a typo in the libpng license v2.
- (Contributed by Miguel Ojeda)
- Added makefiles for AddressSanitizer-enabled builds.
- Cleaned up various makefiles.
-
-Send comments/corrections/commendations to png-mng-implement at lists.sf.net.
-Subscription is required; visit
-https://lists.sourceforge.net/lists/listinfo/png-mng-implement
-to subscribe.
diff --git a/CMakeLists.txt b/CMakeLists.txt
deleted file mode 100644
index 6451fcf..0000000
--- a/CMakeLists.txt
+++ /dev/null
@@ -1,931 +0,0 @@
-# CMakeLists.txt
-
-# Copyright (C) 2018 Cosmin Truta
-# Copyright (C) 2007,2009-2018 Glenn Randers-Pehrson
-# Written by Christian Ehrlicher, 2007
-# Revised by Roger Lowman, 2009-2010
-# Revised by Clifford Yapp, 2011-2012,2017
-# Revised by Roger Leigh, 2016
-# Revised by Andreas Franek, 2016
-# Revised by Sam Serrels, 2017
-# Revised by Vadim Barkov, 2017
-# Revised by Vicky Pfau, 2018
-# Revised by Cameron Cawley, 2018
-# Revised by Cosmin Truta, 2018
-# Revised by Kyle Bentley, 2018
-
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-cmake_minimum_required(VERSION 3.1)
-cmake_policy(VERSION 3.1)
-
-project(libpng C ASM)
-enable_testing()
-
-set(PNGLIB_MAJOR 1)
-set(PNGLIB_MINOR 6)
-set(PNGLIB_RELEASE 37)
-set(PNGLIB_NAME libpng${PNGLIB_MAJOR}${PNGLIB_MINOR})
-set(PNGLIB_VERSION ${PNGLIB_MAJOR}.${PNGLIB_MINOR}.${PNGLIB_RELEASE})
-
-include(GNUInstallDirs)
-
-# needed packages
-
-# Allow users to specify location of Zlib.
-# Useful if zlib is being built alongside this as a sub-project.
-option(PNG_BUILD_ZLIB "Custom zlib Location, else find_package is used" OFF)
-
-if(NOT PNG_BUILD_ZLIB)
- find_package(ZLIB REQUIRED)
- include_directories(${ZLIB_INCLUDE_DIR})
-endif()
-
-if(UNIX AND NOT APPLE AND NOT BEOS AND NOT HAIKU)
- find_library(M_LIBRARY m)
-else()
- # libm is not needed and/or not available
- set(M_LIBRARY "")
-endif()
-
-# COMMAND LINE OPTIONS
-option(PNG_SHARED "Build shared lib" ON)
-option(PNG_STATIC "Build static lib" ON)
-option(PNG_TESTS "Build libpng tests" ON)
-
-# Many more configuration options could be added here
-option(PNG_FRAMEWORK "Build OS X framework" OFF)
-option(PNG_DEBUG "Build with debug output" OFF)
-option(PNG_HARDWARE_OPTIMIZATIONS "Enable hardware optimizations" ON)
-
-set(PNG_PREFIX "" CACHE STRING "Prefix to add to the API function names")
-set(DFA_XTRA "" CACHE FILEPATH "File containing extra configuration settings")
-
-if(PNG_HARDWARE_OPTIMIZATIONS)
-
-# set definitions and sources for arm
-if(CMAKE_SYSTEM_PROCESSOR MATCHES "^arm" OR
- CMAKE_SYSTEM_PROCESSOR MATCHES "^aarch64")
- set(PNG_ARM_NEON_POSSIBLE_VALUES check on off)
- set(PNG_ARM_NEON "check" CACHE STRING "Enable ARM NEON optimizations:
- check: (default) use internal checking code;
- off: disable the optimizations;
- on: turn on unconditionally.")
- set_property(CACHE PNG_ARM_NEON PROPERTY STRINGS
- ${PNG_ARM_NEON_POSSIBLE_VALUES})
- list(FIND PNG_ARM_NEON_POSSIBLE_VALUES ${PNG_ARM_NEON} index)
- if(index EQUAL -1)
- message(FATAL_ERROR
- "PNG_ARM_NEON must be one of [${PNG_ARM_NEON_POSSIBLE_VALUES}]")
- elseif(NOT ${PNG_ARM_NEON} STREQUAL "off")
- set(libpng_arm_sources
- arm/arm_init.c
- arm/filter_neon.S
- arm/filter_neon_intrinsics.c
- arm/palette_neon_intrinsics.c)
-
- if(${PNG_ARM_NEON} STREQUAL "on")
- add_definitions(-DPNG_ARM_NEON_OPT=2)
- elseif(${PNG_ARM_NEON} STREQUAL "check")
- add_definitions(-DPNG_ARM_NEON_CHECK_SUPPORTED)
- endif()
- else()
- add_definitions(-DPNG_ARM_NEON_OPT=0)
- endif()
-endif()
-
-# set definitions and sources for powerpc
-if(CMAKE_SYSTEM_PROCESSOR MATCHES "^powerpc*" OR
- CMAKE_SYSTEM_PROCESSOR MATCHES "^ppc64*")
- set(PNG_POWERPC_VSX_POSSIBLE_VALUES on off)
- set(PNG_POWERPC_VSX "on" CACHE STRING "Enable POWERPC VSX optimizations:
- off: disable the optimizations.")
- set_property(CACHE PNG_POWERPC_VSX PROPERTY STRINGS
- ${PNG_POWERPC_VSX_POSSIBLE_VALUES})
- list(FIND PNG_POWERPC_VSX_POSSIBLE_VALUES ${PNG_POWERPC_VSX} index)
- if(index EQUAL -1)
- message(FATAL_ERROR
- "PNG_POWERPC_VSX must be one of [${PNG_POWERPC_VSX_POSSIBLE_VALUES}]")
- elseif(NOT ${PNG_POWERPC_VSX} STREQUAL "off")
- set(libpng_powerpc_sources
- powerpc/powerpc_init.c
- powerpc/filter_vsx_intrinsics.c)
- if(${PNG_POWERPC_VSX} STREQUAL "on")
- add_definitions(-DPNG_POWERPC_VSX_OPT=2)
- endif()
- else()
- add_definitions(-DPNG_POWERPC_VSX_OPT=0)
- endif()
-endif()
-
-# set definitions and sources for intel
-if(CMAKE_SYSTEM_PROCESSOR MATCHES "^i?86" OR
- CMAKE_SYSTEM_PROCESSOR MATCHES "^x86_64*")
- set(PNG_INTEL_SSE_POSSIBLE_VALUES on off)
- set(PNG_INTEL_SSE "on" CACHE STRING "Enable INTEL_SSE optimizations:
- off: disable the optimizations")
- set_property(CACHE PNG_INTEL_SSE PROPERTY STRINGS
- ${PNG_INTEL_SSE_POSSIBLE_VALUES})
- list(FIND PNG_INTEL_SSE_POSSIBLE_VALUES ${PNG_INTEL_SSE} index)
- if(index EQUAL -1)
- message(FATAL_ERROR
- "PNG_INTEL_SSE must be one of [${PNG_INTEL_SSE_POSSIBLE_VALUES}]")
- elseif(NOT ${PNG_INTEL_SSE} STREQUAL "off")
- set(libpng_intel_sources
- intel/intel_init.c
- intel/filter_sse2_intrinsics.c)
- if(${PNG_INTEL_SSE} STREQUAL "on")
- add_definitions(-DPNG_INTEL_SSE_OPT=1)
- endif()
- else()
- add_definitions(-DPNG_INTEL_SSE_OPT=0)
- endif()
-endif()
-
-# set definitions and sources for MIPS
-if(CMAKE_SYSTEM_PROCESSOR MATCHES "mipsel*" OR
- CMAKE_SYSTEM_PROCESSOR MATCHES "mips64el*")
- set(PNG_MIPS_MSA_POSSIBLE_VALUES on off)
- set(PNG_MIPS_MSA "on" CACHE STRING "Enable MIPS_MSA optimizations:
- off: disable the optimizations")
- set_property(CACHE PNG_MIPS_MSA PROPERTY STRINGS
- ${PNG_MIPS_MSA_POSSIBLE_VALUES})
- list(FIND PNG_MIPS_MSA_POSSIBLE_VALUES ${PNG_MIPS_MSA} index)
- if(index EQUAL -1)
- message(FATAL_ERROR
- "PNG_MIPS_MSA must be one of [${PNG_MIPS_MSA_POSSIBLE_VALUES}]")
- elseif(NOT ${PNG_MIPS_MSA} STREQUAL "off")
- set(libpng_mips_sources
- mips/mips_init.c
- mips/filter_msa_intrinsics.c)
- if(${PNG_MIPS_MSA} STREQUAL "on")
- add_definitions(-DPNG_MIPS_MSA_OPT=2)
- endif()
- else()
- add_definitions(-DPNG_MIPS_MSA_OPT=0)
- endif()
-endif()
-
-else(PNG_HARDWARE_OPTIMIZATIONS)
-
-# set definitions and sources for arm
-if(CMAKE_SYSTEM_PROCESSOR MATCHES "^arm" OR
- CMAKE_SYSTEM_PROCESSOR MATCHES "^aarch64")
- add_definitions(-DPNG_ARM_NEON_OPT=0)
-endif()
-
-# set definitions and sources for powerpc
-if(CMAKE_SYSTEM_PROCESSOR MATCHES "^powerpc*" OR
- CMAKE_SYSTEM_PROCESSOR MATCHES "^ppc64*")
- add_definitions(-DPNG_POWERPC_VSX_OPT=0)
-endif()
-
-# set definitions and sources for intel
-if(CMAKE_SYSTEM_PROCESSOR MATCHES "^i?86" OR
- CMAKE_SYSTEM_PROCESSOR MATCHES "^x86_64*")
- add_definitions(-DPNG_INTEL_SSE_OPT=0)
-endif()
-
-# set definitions and sources for MIPS
-if(CMAKE_SYSTEM_PROCESSOR MATCHES "mipsel*" OR
- CMAKE_SYSTEM_PROCESSOR MATCHES "mips64el*")
- add_definitions(-DPNG_MIPS_MSA_OPT=0)
-endif()
-
-endif(PNG_HARDWARE_OPTIMIZATIONS)
-
-# SET LIBNAME
-set(PNG_LIB_NAME png${PNGLIB_MAJOR}${PNGLIB_MINOR})
-
-# to distinguish between debug and release lib
-set(CMAKE_DEBUG_POSTFIX "d")
-
-include(CheckCSourceCompiles)
-option(ld-version-script "Enable linker version script" ON)
-if(ld-version-script AND NOT APPLE)
- # Check if LD supports linker scripts.
- file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/conftest.map" "VERS_1 {
- global: sym;
- local: *;
-};
-
-VERS_2 {
- global: sym2;
- main;
-} VERS_1;
-")
- set(CMAKE_REQUIRED_FLAGS_SAVE ${CMAKE_REQUIRED_FLAGS})
- set(CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS} "-Wl,--version-script='${CMAKE_CURRENT_BINARY_DIR}/conftest.map'")
- check_c_source_compiles("void sym(void) {}
-void sym2(void) {}
-int main(void) {return 0;}
-" HAVE_LD_VERSION_SCRIPT)
- if(NOT HAVE_LD_VERSION_SCRIPT)
- set(CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS_SAVE} "-Wl,-M -Wl,${CMAKE_CURRENT_BINARY_DIR}/conftest.map")
- check_c_source_compiles("void sym(void) {}
-void sym2(void) {}
-int main(void) {return 0;}
-" HAVE_SOLARIS_LD_VERSION_SCRIPT)
- endif()
- set(CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS_SAVE})
- file(REMOVE "${CMAKE_CURRENT_BINARY_DIR}/conftest.map")
-endif()
-
-# Find symbol prefix. Likely obsolete and unnecessary with recent
-# toolchains (it's not done in many other projects).
-function(symbol_prefix)
- set(SYMBOL_PREFIX)
-
- execute_process(COMMAND "${CMAKE_C_COMPILER}" "-E" "-"
- INPUT_FILE /dev/null
- OUTPUT_VARIABLE OUT
- RESULT_VARIABLE STATUS)
-
- if(CPP_FAIL)
- message(WARNING "Failed to run the C preprocessor")
- endif()
-
- string(REPLACE "\n" ";" OUT "${OUT}")
- foreach(line ${OUT})
- string(REGEX MATCH "^PREFIX=" found_match "${line}")
- if(found_match)
- string(REGEX REPLACE "^PREFIX=(.*\)" "\\1" prefix "${line}")
- string(REGEX MATCH "__USER_LABEL_PREFIX__" found_match "${prefix}")
- if(found_match)
- string(REGEX REPLACE "(.*)__USER_LABEL_PREFIX__(.*)" "\\1\\2" prefix "${prefix}")
- endif()
- set(SYMBOL_PREFIX "${prefix}")
- endif()
- endforeach()
-
- message(STATUS "Symbol prefix: ${SYMBOL_PREFIX}")
- set(SYMBOL_PREFIX "${SYMBOL_PREFIX}" PARENT_SCOPE)
-endfunction()
-
-if(UNIX)
- symbol_prefix()
-endif()
-
-find_program(AWK NAMES gawk awk)
-
-include_directories(${CMAKE_CURRENT_BINARY_DIR})
-
-if(NOT AWK OR ANDROID)
- # No awk available to generate sources; use pre-built pnglibconf.h
- configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/pnglibconf.h.prebuilt
- ${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h)
- add_custom_target(genfiles) # Dummy
-else()
- include(CMakeParseArguments)
- # Generate .chk from .out with awk
- # generate_chk(INPUT inputfile OUTPUT outputfile [DEPENDS dep1 [dep2...]])
- function(generate_chk)
- set(options)
- set(oneValueArgs INPUT OUTPUT)
- set(multiValueArgs DEPENDS)
- cmake_parse_arguments(_GC "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
- if(NOT _GC_INPUT)
- message(FATAL_ERROR "generate_chk: Missing INPUT argument")
- endif()
- if(NOT _GC_OUTPUT)
- message(FATAL_ERROR "generate_chk: Missing OUTPUT argument")
- endif()
-
- add_custom_command(OUTPUT "${_GC_OUTPUT}"
- COMMAND "${CMAKE_COMMAND}"
- "-DINPUT=${_GC_INPUT}"
- "-DOUTPUT=${_GC_OUTPUT}"
- -P "${CMAKE_CURRENT_BINARY_DIR}/scripts/genchk.cmake"
- DEPENDS "${_GC_INPUT}" ${_GC_DEPENDS}
- WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
- endfunction()
-
- # Generate .out from .c with awk
- # generate_out(INPUT inputfile OUTPUT outputfile [DEPENDS dep1 [dep2...]])
- function(generate_out)
- set(options)
- set(oneValueArgs INPUT OUTPUT)
- set(multiValueArgs DEPENDS)
- cmake_parse_arguments(_GO "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
- if(NOT _GO_INPUT)
- message(FATAL_ERROR "generate_out: Missing INPUT argument")
- endif()
- if(NOT _GO_OUTPUT)
- message(FATAL_ERROR "generate_out: Missing OUTPUT argument")
- endif()
-
- add_custom_command(OUTPUT "${_GO_OUTPUT}"
- COMMAND "${CMAKE_COMMAND}"
- "-DINPUT=${_GO_INPUT}"
- "-DOUTPUT=${_GO_OUTPUT}"
- -P "${CMAKE_CURRENT_BINARY_DIR}/scripts/genout.cmake"
- DEPENDS "${_GO_INPUT}" ${_GO_DEPENDS}
- WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
- endfunction()
-
- # Generate specific source file with awk
- # generate_source(OUTPUT outputfile [DEPENDS dep1 [dep2...]])
- function(generate_source)
- set(options)
- set(oneValueArgs OUTPUT)
- set(multiValueArgs DEPENDS)
- cmake_parse_arguments(_GSO "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
- if(NOT _GSO_OUTPUT)
- message(FATAL_ERROR "generate_source: Missing OUTPUT argument")
- endif()
-
- add_custom_command(OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${_GSO_OUTPUT}"
- COMMAND "${CMAKE_COMMAND}"
- "-DOUTPUT=${_GSO_OUTPUT}"
- -P "${CMAKE_CURRENT_BINARY_DIR}/scripts/gensrc.cmake"
- DEPENDS ${_GSO_DEPENDS}
- WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
- endfunction()
-
- # Copy file
- function(generate_copy source destination)
- add_custom_command(OUTPUT "${destination}"
- COMMAND "${CMAKE_COMMAND}" -E remove "${destination}"
- COMMAND "${CMAKE_COMMAND}" -E copy "${source}"
- "${destination}"
- DEPENDS "${source}")
- endfunction()
-
- # Generate scripts/pnglibconf.h
- generate_source(OUTPUT "scripts/pnglibconf.c"
- DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/scripts/pnglibconf.dfa"
- "${CMAKE_CURRENT_SOURCE_DIR}/scripts/options.awk"
- "${CMAKE_CURRENT_SOURCE_DIR}/pngconf.h")
-
- # Generate pnglibconf.c
- generate_source(OUTPUT "pnglibconf.c"
- DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/scripts/pnglibconf.dfa"
- "${CMAKE_CURRENT_SOURCE_DIR}/scripts/options.awk"
- "${CMAKE_CURRENT_SOURCE_DIR}/pngconf.h")
-
- if(PNG_PREFIX)
- set(PNGLIBCONF_H_EXTRA_DEPENDS
- "${CMAKE_CURRENT_BINARY_DIR}/scripts/prefix.out"
- "${CMAKE_CURRENT_SOURCE_DIR}/scripts/macro.lst")
- set(PNGPREFIX_H_EXTRA_DEPENDS
- "${CMAKE_CURRENT_BINARY_DIR}/scripts/intprefix.out")
- endif()
-
- generate_out(INPUT "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.c"
- OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.out")
-
- # Generate pnglibconf.h
- generate_source(OUTPUT "pnglibconf.h"
- DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.out"
- ${PNGLIBCONF_H_EXTRA_DEPENDS})
-
- generate_out(INPUT "${CMAKE_CURRENT_SOURCE_DIR}/scripts/intprefix.c"
- OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/intprefix.out"
- DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h")
-
- generate_out(INPUT "${CMAKE_CURRENT_SOURCE_DIR}/scripts/prefix.c"
- OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/prefix.out"
- DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/png.h"
- "${CMAKE_CURRENT_SOURCE_DIR}/pngconf.h"
- "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.out")
-
- # Generate pngprefix.h
- generate_source(OUTPUT "pngprefix.h"
- DEPENDS ${PNGPREFIX_H_EXTRA_DEPENDS})
-
- generate_out(INPUT "${CMAKE_CURRENT_SOURCE_DIR}/scripts/sym.c"
- OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/sym.out"
- DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h")
-
- generate_out(INPUT "${CMAKE_CURRENT_SOURCE_DIR}/scripts/symbols.c"
- OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.out"
- DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/png.h"
- "${CMAKE_CURRENT_SOURCE_DIR}/pngconf.h"
- "${CMAKE_CURRENT_SOURCE_DIR}/scripts/pnglibconf.h.prebuilt")
-
- generate_out(INPUT "${CMAKE_CURRENT_SOURCE_DIR}/scripts/vers.c"
- OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/vers.out"
- DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/png.h"
- "${CMAKE_CURRENT_SOURCE_DIR}/pngconf.h"
- "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h")
-
- generate_chk(INPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.out"
- OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.chk"
- DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/scripts/checksym.awk"
- "${CMAKE_CURRENT_SOURCE_DIR}/scripts/symbols.def")
-
- add_custom_target(symbol-check DEPENDS
- "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.chk")
-
- generate_copy("${CMAKE_CURRENT_BINARY_DIR}/scripts/sym.out"
- "${CMAKE_CURRENT_BINARY_DIR}/libpng.sym")
- generate_copy("${CMAKE_CURRENT_BINARY_DIR}/scripts/vers.out"
- "${CMAKE_CURRENT_BINARY_DIR}/libpng.vers")
-
- add_custom_target(genvers DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/libpng.vers")
- add_custom_target(gensym DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/libpng.sym")
-
- add_custom_target("genprebuilt"
- COMMAND "${CMAKE_COMMAND}"
- "-DOUTPUT=scripts/pnglibconf.h.prebuilt"
- -P "${CMAKE_CURRENT_BINARY_DIR}/scripts/gensrc.cmake"
- WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
-
- # A single target handles generation of all generated files. If
- # they are depended upon separately by multiple targets, this
- # confuses parallel make (it would require a separate top-level
- # target for each file to track the dependencies properly).
- add_custom_target(genfiles DEPENDS
- "${CMAKE_CURRENT_BINARY_DIR}/libpng.sym"
- "${CMAKE_CURRENT_BINARY_DIR}/libpng.vers"
- "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.c"
- "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h"
- "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.out"
- "${CMAKE_CURRENT_BINARY_DIR}/pngprefix.h"
- "${CMAKE_CURRENT_BINARY_DIR}/scripts/intprefix.out"
- "${CMAKE_CURRENT_BINARY_DIR}/scripts/pnglibconf.c"
- "${CMAKE_CURRENT_BINARY_DIR}/scripts/prefix.out"
- "${CMAKE_CURRENT_BINARY_DIR}/scripts/sym.out"
- "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.chk"
- "${CMAKE_CURRENT_BINARY_DIR}/scripts/symbols.out"
- "${CMAKE_CURRENT_BINARY_DIR}/scripts/vers.out")
-endif(NOT AWK OR ANDROID)
-
-# OUR SOURCES
-set(libpng_public_hdrs
- png.h
- pngconf.h
- "${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h"
-)
-set(libpng_private_hdrs
- pngpriv.h
- pngdebug.h
- pnginfo.h
- pngstruct.h
-)
-if(AWK AND NOT ANDROID)
- list(APPEND libpng_private_hdrs "${CMAKE_CURRENT_BINARY_DIR}/pngprefix.h")
-endif()
-set(libpng_sources
- ${libpng_public_hdrs}
- ${libpng_private_hdrs}
- png.c
- pngerror.c
- pngget.c
- pngmem.c
- pngpread.c
- pngread.c
- pngrio.c
- pngrtran.c
- pngrutil.c
- pngset.c
- pngtrans.c
- pngwio.c
- pngwrite.c
- pngwtran.c
- pngwutil.c
- ${libpng_arm_sources}
- ${libpng_intel_sources}
- ${libpng_mips_sources}
- ${libpng_powerpc_sources}
-)
-set(pngtest_sources
- pngtest.c
-)
-set(pngvalid_sources
- contrib/libtests/pngvalid.c
-)
-set(pngstest_sources
- contrib/libtests/pngstest.c
-)
-set(pngunknown_sources
- contrib/libtests/pngunknown.c
-)
-set(pngimage_sources
- contrib/libtests/pngimage.c
-)
-set(pngfix_sources
- contrib/tools/pngfix.c
-)
-set(png_fix_itxt_sources
- contrib/tools/png-fix-itxt.c
-)
-
-if(MSVC)
- add_definitions(-D_CRT_SECURE_NO_DEPRECATE)
-endif()
-
-if(PNG_DEBUG)
- add_definitions(-DPNG_DEBUG)
-endif()
-
-# NOW BUILD OUR TARGET
-include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${ZLIB_INCLUDE_DIR})
-
-unset(PNG_LIB_TARGETS)
-
-if(PNG_SHARED)
- add_library(png SHARED ${libpng_sources})
- set(PNG_LIB_TARGETS png)
- set_target_properties(png PROPERTIES OUTPUT_NAME ${PNG_LIB_NAME})
- add_dependencies(png genfiles)
- if(MSVC)
- # msvc does not append 'lib' - do it here to have consistent name
- set_target_properties(png PROPERTIES PREFIX "lib")
- set_target_properties(png PROPERTIES IMPORT_PREFIX "lib")
- endif()
- target_link_libraries(png ${ZLIB_LIBRARY} ${M_LIBRARY})
-
- if(UNIX AND AWK)
- if(HAVE_LD_VERSION_SCRIPT)
- set_target_properties(png PROPERTIES LINK_FLAGS
- "-Wl,--version-script='${CMAKE_CURRENT_BINARY_DIR}/libpng.vers'")
- elseif(HAVE_SOLARIS_LD_VERSION_SCRIPT)
- set_target_properties(png PROPERTIES LINK_FLAGS
- "-Wl,-M -Wl,'${CMAKE_CURRENT_BINARY_DIR}/libpng.vers'")
- endif()
- endif()
-endif()
-
-if(PNG_STATIC)
- # does not work without changing name
- set(PNG_LIB_NAME_STATIC png_static)
- add_library(png_static STATIC ${libpng_sources})
- add_dependencies(png_static genfiles)
- # MSVC doesn't use a different file extension for shared vs. static
- # libs. We are able to change OUTPUT_NAME to remove the _static
- # for all other platforms.
- if(NOT MSVC)
- set_target_properties(png_static PROPERTIES
- OUTPUT_NAME "${PNG_LIB_NAME}"
- CLEAN_DIRECT_OUTPUT 1)
- else()
- set_target_properties(png_static PROPERTIES
- OUTPUT_NAME "${PNG_LIB_NAME}_static"
- CLEAN_DIRECT_OUTPUT 1)
- endif()
- list(APPEND PNG_LIB_TARGETS png_static)
- if(MSVC)
- # msvc does not append 'lib' - do it here to have consistent name
- set_target_properties(png_static PROPERTIES PREFIX "lib")
- endif()
- target_link_libraries(png_static ${ZLIB_LIBRARY} ${M_LIBRARY})
-endif()
-
-if(PNG_FRAMEWORK)
- set(PNG_LIB_NAME_FRAMEWORK png_framework)
- add_library(png_framework SHARED ${libpng_sources})
- add_dependencies(png_framework genfiles)
- list(APPEND PNG_LIB_TARGETS png_framework)
- set_target_properties(png_framework PROPERTIES
- FRAMEWORK TRUE
- FRAMEWORK_VERSION ${PNGLIB_VERSION}
- MACOSX_FRAMEWORK_SHORT_VERSION_STRING ${PNGLIB_MAJOR}.${PNGLIB_MINOR}
- MACOSX_FRAMEWORK_BUNDLE_VERSION ${PNGLIB_VERSION}
- MACOSX_FRAMEWORK_IDENTIFIER org.libpng.libpng
- XCODE_ATTRIBUTE_INSTALL_PATH "@rpath"
- PUBLIC_HEADER "${libpng_public_hdrs}"
- OUTPUT_NAME png)
- target_link_libraries(png_framework ${ZLIB_LIBRARY} ${M_LIBRARY})
-endif()
-
-if(NOT PNG_LIB_TARGETS)
- message(SEND_ERROR
- "No library variant selected to build. "
- "Please enable at least one of the following options: "
- "PNG_STATIC, PNG_SHARED, PNG_FRAMEWORK")
-endif()
-
-if(PNG_SHARED AND WIN32)
- set_target_properties(png PROPERTIES DEFINE_SYMBOL PNG_BUILD_DLL)
-endif()
-
-function(png_add_test)
- set(options)
- set(oneValueArgs NAME COMMAND)
- set(multiValueArgs OPTIONS FILES)
- cmake_parse_arguments(_PAT "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
-
- if(NOT _PAT_NAME)
- message(FATAL_ERROR "png_add_test: Missing NAME argument")
- endif()
- if(NOT _PAT_COMMAND)
- message(FATAL_ERROR "png_add_test: Missing COMMAND argument")
- endif()
-
- set(TEST_OPTIONS "${_PAT_OPTIONS}")
- set(TEST_FILES "${_PAT_FILES}")
-
- configure_file("${CMAKE_CURRENT_SOURCE_DIR}/scripts/test.cmake.in"
- "${CMAKE_CURRENT_BINARY_DIR}/tests/${_PAT_NAME}.cmake" @ONLY)
- add_test(NAME "${_PAT_NAME}"
- COMMAND "${CMAKE_COMMAND}"
- "-DLIBPNG=$<TARGET_FILE:png>"
- "-DTEST_COMMAND=$<TARGET_FILE:${_PAT_COMMAND}>"
- -P "${CMAKE_CURRENT_BINARY_DIR}/tests/${_PAT_NAME}.cmake")
-endfunction()
-
-if(PNG_TESTS AND PNG_SHARED)
- # Find test PNG files by globbing, but sort lists to ensure
- # consistency between different filesystems.
- file(GLOB PNGSUITE_PNGS "${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/*.png")
- list(SORT PNGSUITE_PNGS)
- file(GLOB TEST_PNGS "${CMAKE_CURRENT_SOURCE_DIR}/contrib/testpngs/*.png")
- list(SORT TEST_PNGS)
-
- set(PNGTEST_PNG "${CMAKE_CURRENT_SOURCE_DIR}/pngtest.png")
-
- add_executable(pngtest ${pngtest_sources})
- target_link_libraries(pngtest png)
-
- png_add_test(NAME pngtest COMMAND pngtest FILES "${PNGTEST_PNG}")
-
- add_executable(pngvalid ${pngvalid_sources})
- target_link_libraries(pngvalid png)
-
- png_add_test(NAME pngvalid-gamma-16-to-8
- COMMAND pngvalid OPTIONS --gamma-16-to-8)
- png_add_test(NAME pngvalid-gamma-alpha-mode
- COMMAND pngvalid OPTIONS --gamma-alpha-mode)
- png_add_test(NAME pngvalid-gamma-background
- COMMAND pngvalid OPTIONS --gamma-background)
- png_add_test(NAME pngvalid-gamma-expand16-alpha-mode
- COMMAND pngvalid OPTIONS --gamma-alpha-mode --expand16)
- png_add_test(NAME pngvalid-gamma-expand16-background
- COMMAND pngvalid OPTIONS --gamma-background --expand16)
- png_add_test(NAME pngvalid-gamma-expand16-transform
- COMMAND pngvalid OPTIONS --gamma-transform --expand16)
- png_add_test(NAME pngvalid-gamma-sbit
- COMMAND pngvalid OPTIONS --gamma-sbit)
- png_add_test(NAME pngvalid-gamma-threshold
- COMMAND pngvalid OPTIONS --gamma-threshold)
- png_add_test(NAME pngvalid-gamma-transform
- COMMAND pngvalid OPTIONS --gamma-transform)
- png_add_test(NAME pngvalid-progressive-interlace-standard
- COMMAND pngvalid OPTIONS --standard --progressive-read --interlace)
- png_add_test(NAME pngvalid-progressive-size
- COMMAND pngvalid OPTIONS --size --progressive-read)
- png_add_test(NAME pngvalid-progressive-standard
- COMMAND pngvalid OPTIONS --standard --progressive-read)
- png_add_test(NAME pngvalid-standard
- COMMAND pngvalid OPTIONS --standard)
- png_add_test(NAME pngvalid-transform
- COMMAND pngvalid OPTIONS --transform)
-
- add_executable(pngstest ${pngstest_sources})
- target_link_libraries(pngstest png)
-
- foreach(gamma_type 1.8 linear none sRGB)
- foreach(alpha_type none alpha)
- set(PNGSTEST_FILES)
- foreach(test_png ${TEST_PNGS})
- string(REGEX MATCH ".*-linear[-.].*" TEST_PNG_LINEAR "${test_png}")
- string(REGEX MATCH ".*-sRGB[-.].*" TEST_PNG_SRGB "${test_png}")
- string(REGEX MATCH ".*-1.8[-.].*" TEST_PNG_G18 "${test_png}")
- string(REGEX MATCH ".*-alpha-.*" TEST_PNG_ALPHA "${test_png}")
-
- set(TEST_PNG_VALID TRUE)
-
- if(TEST_PNG_ALPHA)
- if(NOT "${alpha_type}" STREQUAL "alpha")
- set(TEST_PNG_VALID FALSE)
- endif()
- else()
- if("${alpha_type}" STREQUAL "alpha")
- set(TEST_PNG_VALID FALSE)
- endif()
- endif()
-
- if(TEST_PNG_LINEAR)
- if(NOT "${gamma_type}" STREQUAL "linear")
- set(TEST_PNG_VALID FALSE)
- endif()
- elseif(TEST_PNG_SRGB)
- if(NOT "${gamma_type}" STREQUAL "sRGB")
- set(TEST_PNG_VALID FALSE)
- endif()
- elseif(TEST_PNG_G18)
- if(NOT "${gamma_type}" STREQUAL "1.8")
- set(TEST_PNG_VALID FALSE)
- endif()
- else()
- if(NOT "${gamma_type}" STREQUAL "none")
- set(TEST_PNG_VALID FALSE)
- endif()
- endif()
-
- if(TEST_PNG_VALID)
- list(APPEND PNGSTEST_FILES "${test_png}")
- endif()
- endforeach()
- # Should already be sorted, but sort anyway to be certain.
- list(SORT PNGSTEST_FILES)
- png_add_test(NAME pngstest-${gamma_type}-${alpha_type}
- COMMAND pngstest
- OPTIONS --tmpfile "${gamma_type}-${alpha_type}-" --log
- FILES ${PNGSTEST_FILES})
- endforeach()
- endforeach()
-
- add_executable(pngunknown ${pngunknown_sources})
- target_link_libraries(pngunknown png)
-
- png_add_test(NAME pngunknown-discard COMMAND pngunknown OPTIONS --strict default=discard FILES "${PNGTEST_PNG}")
- png_add_test(NAME pngunknown-IDAT COMMAND pngunknown OPTIONS --strict default=discard IDAT=save FILES "${PNGTEST_PNG}")
- png_add_test(NAME pngunknown-if-safe COMMAND pngunknown OPTIONS --strict default=if-safe FILES "${PNGTEST_PNG}")
- png_add_test(NAME pngunknown-sAPI COMMAND pngunknown OPTIONS --strict bKGD=save cHRM=save gAMA=save all=discard iCCP=save sBIT=save sRGB=save FILES "${PNGTEST_PNG}")
- png_add_test(NAME pngunknown-save COMMAND pngunknown OPTIONS --strict default=save FILES "${PNGTEST_PNG}")
- png_add_test(NAME pngunknown-sTER COMMAND pngunknown OPTIONS --strict sTER=if-safe FILES "${PNGTEST_PNG}")
- png_add_test(NAME pngunknown-vpAg COMMAND pngunknown OPTIONS --strict vpAg=if-safe FILES "${PNGTEST_PNG}")
-
- add_executable(pngimage ${pngimage_sources})
- target_link_libraries(pngimage png)
-
- png_add_test(NAME pngimage-quick COMMAND pngimage OPTIONS --list-combos --log FILES ${PNGSUITE_PNGS})
- png_add_test(NAME pngimage-full COMMAND pngimage OPTIONS --exhaustive --list-combos --log FILES ${PNGSUITE_PNGS})
-endif()
-
-if(PNG_SHARED)
- add_executable(pngfix ${pngfix_sources})
- target_link_libraries(pngfix png)
- set(PNG_BIN_TARGETS pngfix)
-
- add_executable(png-fix-itxt ${png_fix_itxt_sources})
- target_link_libraries(png-fix-itxt ${ZLIB_LIBRARY} ${M_LIBRARY})
- list(APPEND PNG_BIN_TARGETS png-fix-itxt)
-endif()
-
-# Set a variable with CMake code which:
-# Creates a symlink from src to dest (if possible) or alternatively
-# copies if different.
-include(CMakeParseArguments)
-
-function(create_symlink DEST_FILE)
-
- cmake_parse_arguments(S "" "FILE;TARGET" "" ${ARGN})
-
- if(NOT S_TARGET AND NOT S_FILE)
- message(FATAL_ERROR "create_symlink: Missing TARGET or FILE argument")
- endif()
-
- if(S_TARGET AND S_FILE)
- message(FATAL_ERROR "create_symlink: Both source file ${S_FILE} and build target ${S_TARGET} arguments are present; can only have one.")
- endif()
-
- if(S_FILE)
- # If we don't need to symlink something that's coming from a build target,
- # we can go ahead and symlink/copy at configure time.
- if(CMAKE_HOST_WIN32 AND NOT CYGWIN)
- execute_process(
- COMMAND "${CMAKE_COMMAND}" -E copy_if_different ${S_FILE} ${DEST_FILE}
- WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
- else()
- execute_process(
- COMMAND ${CMAKE_COMMAND} -E create_symlink ${S_FILE} ${DEST_FILE}
- WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
- endif()
- endif()
-
- if(S_TARGET)
- # We need to use generator expressions, which can be a bit tricky, so for
- # simplicity make the symlink a POST_BUILD step and use the TARGET
- # signature of add_custom_command.
- if(CMAKE_HOST_WIN32 AND NOT CYGWIN)
- add_custom_command(TARGET ${S_TARGET} POST_BUILD
- COMMAND "${CMAKE_COMMAND}" -E copy_if_different $<TARGET_LINKER_FILE_NAME:${S_TARGET}> $<TARGET_LINKER_FILE_DIR:${S_TARGET}>/${DEST_FILE})
- else()
- add_custom_command(TARGET ${S_TARGET} POST_BUILD
- COMMAND "${CMAKE_COMMAND}" -E create_symlink $<TARGET_LINKER_FILE_NAME:${S_TARGET}> $<TARGET_LINKER_FILE_DIR:${S_TARGET}>/${DEST_FILE})
- endif()
- endif()
-
-endfunction()
-
-# Create source generation scripts.
-configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/genchk.cmake.in
- ${CMAKE_CURRENT_BINARY_DIR}/scripts/genchk.cmake @ONLY)
-configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/genout.cmake.in
- ${CMAKE_CURRENT_BINARY_DIR}/scripts/genout.cmake @ONLY)
-configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/gensrc.cmake.in
- ${CMAKE_CURRENT_BINARY_DIR}/scripts/gensrc.cmake @ONLY)
-
-# libpng is a library so default to 'lib'
-if(NOT DEFINED CMAKE_INSTALL_LIBDIR)
- set(CMAKE_INSTALL_LIBDIR lib)
-endif()
-
-# CREATE PKGCONFIG FILES
-# We use the same files like ./configure, so we have to set its vars.
-# Only do this on Windows for Cygwin - the files don't make much sense outside
-# of a UNIX look-alike.
-if(NOT WIN32 OR CYGWIN OR MINGW)
- set(prefix ${CMAKE_INSTALL_PREFIX})
- set(exec_prefix ${CMAKE_INSTALL_PREFIX})
- set(libdir ${CMAKE_INSTALL_FULL_LIBDIR})
- set(includedir ${CMAKE_INSTALL_FULL_INCLUDEDIR})
- set(LIBS "-lz -lm")
- configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng.pc.in
- ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc @ONLY)
- create_symlink(libpng.pc FILE ${PNGLIB_NAME}.pc)
-
- configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng-config.in
- ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config @ONLY)
- create_symlink(libpng-config FILE ${PNGLIB_NAME}-config)
-endif()
-
-# SET UP LINKS
-if(PNG_SHARED)
- set_target_properties(png PROPERTIES
-# VERSION 16.${PNGLIB_RELEASE}.1.6.37
- VERSION 16.${PNGLIB_RELEASE}.0
- SOVERSION 16
- CLEAN_DIRECT_OUTPUT 1)
-endif()
-
-# INSTALL
-if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL)
- install(TARGETS ${PNG_LIB_TARGETS}
- EXPORT libpng
- RUNTIME DESTINATION bin
- LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
- ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
- FRAMEWORK DESTINATION ${CMAKE_INSTALL_LIBDIR})
-
- if(PNG_SHARED)
- # Create a symlink for libpng.dll.a => libpng16.dll.a on Cygwin
- if(CYGWIN OR MINGW)
- create_symlink(libpng${CMAKE_IMPORT_LIBRARY_SUFFIX} TARGET png)
- install(FILES $<TARGET_LINKER_FILE_DIR:png>/libpng${CMAKE_IMPORT_LIBRARY_SUFFIX}
- DESTINATION ${CMAKE_INSTALL_LIBDIR})
- endif()
-
- if(NOT WIN32)
- create_symlink(libpng${CMAKE_SHARED_LIBRARY_SUFFIX} TARGET png)
- install(FILES $<TARGET_LINKER_FILE_DIR:png>/libpng${CMAKE_SHARED_LIBRARY_SUFFIX}
- DESTINATION ${CMAKE_INSTALL_LIBDIR})
- endif()
- endif()
-
- if(PNG_STATIC)
- if(NOT WIN32 OR CYGWIN OR MINGW)
- create_symlink(libpng${CMAKE_STATIC_LIBRARY_SUFFIX} TARGET png_static)
- install(FILES $<TARGET_LINKER_FILE_DIR:png_static>/libpng${CMAKE_STATIC_LIBRARY_SUFFIX}
- DESTINATION ${CMAKE_INSTALL_LIBDIR})
- endif()
- endif()
-endif()
-
-if(NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL)
- install(FILES ${libpng_public_hdrs} DESTINATION include)
- install(FILES ${libpng_public_hdrs} DESTINATION include/${PNGLIB_NAME})
-endif()
-if(NOT SKIP_INSTALL_EXECUTABLES AND NOT SKIP_INSTALL_ALL)
- if(NOT WIN32 OR CYGWIN OR MINGW)
- install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng-config DESTINATION bin)
- install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config DESTINATION bin)
- endif()
-endif()
-
-if(NOT SKIP_INSTALL_PROGRAMS AND NOT SKIP_INSTALL_ALL)
- install(TARGETS ${PNG_BIN_TARGETS}
- RUNTIME DESTINATION bin)
-endif()
-
-if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL)
- # Install man pages
- if(NOT PNG_MAN_DIR)
- set(PNG_MAN_DIR "share/man")
- endif()
- install(FILES libpng.3 libpngpf.3 DESTINATION ${PNG_MAN_DIR}/man3)
- install(FILES png.5 DESTINATION ${PNG_MAN_DIR}/man5)
- # Install pkg-config files
- if(NOT CMAKE_HOST_WIN32 OR CYGWIN OR MINGW)
- install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng.pc
- DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
- install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng-config
- DESTINATION bin)
- install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc
- DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
- install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config
- DESTINATION bin)
- endif()
-endif()
-
-# Create an export file that CMake users can include() to import our targets.
-if(NOT SKIP_INSTALL_EXPORT AND NOT SKIP_INSTALL_ALL)
- install(EXPORT libpng DESTINATION lib/libpng FILE lib${PNG_LIB_NAME}.cmake)
-endif()
-
-# what's with libpng-manual.txt and all the extra files?
-
-# UNINSTALL
-# do we need this?
-
-# DIST
-# do we need this?
-
-# to create msvc import lib for mingw compiled shared lib
-# pexports libpng.dll > libpng.def
-# lib /def:libpng.def /machine:x86
diff --git a/INSTALL b/INSTALL
deleted file mode 100644
index 4c17022..0000000
--- a/INSTALL
+++ /dev/null
@@ -1,465 +0,0 @@
-
- Installing libpng
-
-Contents
-
- I. Simple installation
- II. Rebuilding the configure scripts
- III. Using scripts/makefile*
- IV. Using cmake
- V. Directory structure
- VI. Building with project files
- VII. Building with makefiles
- VIII. Configuring libpng for 16-bit platforms
- IX. Configuring for DOS
- X. Configuring for Medium Model
- XI. Prepending a prefix to exported symbols
- XII. Configuring for compiler xxx:
- XIII. Removing unwanted object code
- XIV. Enabling or disabling hardware optimizations
- XV. Changes to the build and configuration of libpng in libpng-1.5.x
- XVI. Setjmp/longjmp issues
- XVII. Common linking failures
- XVIII. Other sources of information about libpng
-
-I. Simple installation
-
-On Unix/Linux and similar systems, you can simply type
-
- ./configure [--prefix=/path]
- make check
- make install
-
-and ignore the rest of this document. "/path" is the path to the directory
-where you want to install the libpng "lib", "include", and "bin"
-subdirectories.
-
-If you downloaded a GIT clone, you will need to run ./autogen.sh before
-running ./configure, to create "configure" and "Makefile.in" which are
-not included in the GIT repository.
-
-Note that "configure" is only included in the "*.tar" distributions and not
-in the "*.zip" or "*.7z" distributions. If you downloaded one of those
-distributions, see "Building with project files" or "Building with makefiles",
-below.
-
-II. Rebuilding the configure scripts
-
-If configure does not work on your system, or if you have a need to
-change configure.ac or Makefile.am, and you have a reasonably
-up-to-date set of tools, running ./autogen.sh in a git clone before
-running ./configure may fix the problem. To be really sure that you
-aren't using any of the included pre-built scripts, especially if you
-are building from a tar distribution instead of a git distribution,
-do this:
-
- ./configure --enable-maintainer-mode
- make maintainer-clean
- ./autogen.sh --maintainer --clean
- ./autogen.sh --maintainer
- ./configure [--prefix=/path] [other options]
- make
- make install
- make check
-
-III. Using scripts/makefile*
-
-Instead, you can use one of the custom-built makefiles in the
-"scripts" directory
-
- cp scripts/pnglibconf.h.prebuilt pnglibconf.h
- cp scripts/makefile.system makefile
- make test
- make install
-
-The files that are presently available in the scripts directory
-are listed and described in scripts/README.txt.
-
-Or you can use one of the "projects" in the "projects" directory.
-
-Before installing libpng, you must first install zlib, if it
-is not already on your system. zlib can usually be found
-wherever you got libpng; otherwise go to https://zlib.net/. You can
-place zlib in the same directory as libpng or in another directory.
-
-If your system already has a preinstalled zlib you will still need
-to have access to the zlib.h and zconf.h include files that
-correspond to the version of zlib that's installed.
-
-If you wish to test with a particular zlib that is not first in the
-standard library search path, put ZLIBLIB, ZLIBINC, CPPFLAGS, LDFLAGS,
-and LD_LIBRARY_PATH in your environment before running "make test"
-or "make distcheck":
-
- ZLIBLIB=/path/to/lib export ZLIBLIB
- ZLIBINC=/path/to/include export ZLIBINC
- CPPFLAGS="-I$ZLIBINC" export CPPFLAGS
- LDFLAGS="-L$ZLIBLIB" export LDFLAGS
- LD_LIBRARY_PATH="$ZLIBLIB:$LD_LIBRARY_PATH" export LD_LIBRARY_PATH
-
-If you are using one of the makefile scripts, put ZLIBLIB and ZLIBINC
-in your environment and type
-
- make ZLIBLIB=$ZLIBLIB ZLIBINC=$ZLIBINC test
-
-IV. Using cmake
-
-If you want to use "cmake" (see www.cmake.org), type
-
- cmake . -DCMAKE_INSTALL_PREFIX=/path
- make
- make install
-
-As when using the simple configure method described above, "/path" points to
-the installation directory where you want to put the libpng "lib", "include",
-and "bin" subdirectories.
-
-V. Directory structure
-
-You can rename the directories that you downloaded (they
-might be called "libpng-x.y.z" or "libpngNN" and "zlib-1.2.8"
-or "zlib128") so that you have directories called "zlib" and "libpng".
-
-Your directory structure should look like this:
-
- .. (the parent directory)
- libpng (this directory)
- INSTALL (this file)
- README
- *.h, *.c => libpng source files
- CMakeLists.txt => "cmake" script
- configuration files:
- configure.ac, configure, Makefile.am, Makefile.in,
- autogen.sh, config.guess, ltmain.sh, missing, libpng.pc.in,
- libpng-config.in, aclocal.m4, config.h.in, config.sub,
- depcomp, install-sh, mkinstalldirs, test-pngtest.sh
- contrib
- arm-neon, conftest, examples, gregbook, libtests, pngminim,
- pngminus, pngsuite, tools, visupng
- projects
- cbuilder5, owatcom, visualc71, vstudio, xcode
- scripts
- makefile.*
- *.def (module definition files)
- etc.
- pngtest.png
- etc.
- zlib
- README, *.h, *.c contrib, etc.
-
-If the line endings in the files look funny, you may wish to get the other
-distribution of libpng. It is available in both tar.gz (UNIX style line
-endings) and zip (DOS style line endings) formats.
-
-VI. Building with project files
-
-If you are building libpng with MSVC, you can enter the
-libpng projects\visualc71 or vstudio directory and follow the instructions
-in README.txt.
-
-Otherwise enter the zlib directory and follow the instructions in zlib/README,
-then come back here and run "configure" or choose the appropriate
-makefile.sys in the scripts directory.
-
-VII. Building with makefiles
-
-Copy the file (or files) that you need from the
-scripts directory into this directory, for example
-
-MSDOS example:
-
- copy scripts\makefile.msc makefile
- copy scripts\pnglibconf.h.prebuilt pnglibconf.h
-
-UNIX example:
-
- cp scripts/makefile.std makefile
- cp scripts/pnglibconf.h.prebuilt pnglibconf.h
-
-Read the makefile to see if you need to change any source or
-target directories to match your preferences.
-
-Then read pnglibconf.dfa to see if you want to make any configuration
-changes.
-
-Then just run "make" which will create the libpng library in
-this directory and "make test" which will run a quick test that reads
-the "pngtest.png" file and writes a "pngout.png" file that should be
-identical to it. Look for "9782 zero samples" in the output of the
-test. For more confidence, you can run another test by typing
-"pngtest pngnow.png" and looking for "289 zero samples" in the output.
-Also, you can run "pngtest -m contrib/pngsuite/*.png" and compare
-your output with the result shown in contrib/pngsuite/README.
-
-Most of the makefiles will allow you to run "make install" to
-put the library in its final resting place (if you want to
-do that, run "make install" in the zlib directory first if necessary).
-Some also allow you to run "make test-installed" after you have
-run "make install".
-
-VIII. Configuring libpng for 16-bit platforms
-
-You will want to look into zconf.h to tell zlib (and thus libpng) that
-it cannot allocate more than 64K at a time. Even if you can, the memory
-won't be accessible. So limit zlib and libpng to 64K by defining MAXSEG_64K.
-
-IX. Configuring for DOS
-
-For DOS users who only have access to the lower 640K, you will
-have to limit zlib's memory usage via a png_set_compression_mem_level()
-call. See zlib.h or zconf.h in the zlib library for more information.
-
-X. Configuring for Medium Model
-
-Libpng's support for medium model has been tested on most of the popular
-compilers. Make sure MAXSEG_64K gets defined, USE_FAR_KEYWORD gets
-defined, and FAR gets defined to far in pngconf.h, and you should be
-all set. Everything in the library (except for zlib's structure) is
-expecting far data. You must use the typedefs with the p or pp on
-the end for pointers (or at least look at them and be careful). Make
-note that the rows of data are defined as png_bytepp, which is
-an "unsigned char far * far *".
-
-XI. Prepending a prefix to exported symbols
-
-Starting with libpng-1.6.0, you can configure libpng (when using the
-"configure" script) to prefix all exported symbols by means of the
-configuration option "--with-libpng-prefix=FOO_", where FOO_ can be any
-string beginning with a letter and containing only uppercase
-and lowercase letters, digits, and the underscore (i.e., a C language
-identifier). This creates a set of macros in pnglibconf.h, so this is
-transparent to applications; their function calls get transformed by
-the macros to use the modified names.
-
-XII. Configuring for compiler xxx:
-
-All includes for libpng are in pngconf.h. If you need to add, change
-or delete an include, this is the place to do it.
-The includes that are not needed outside libpng are placed in pngpriv.h,
-which is only used by the routines inside libpng itself.
-The files in libpng proper only include pngpriv.h and png.h, which
-in turn includes pngconf.h and, as of libpng-1.5.0, pnglibconf.h.
-As of libpng-1.5.0, pngpriv.h also includes three other private header
-files, pngstruct.h, pnginfo.h, and pngdebug.h, which contain material
-that previously appeared in the public headers.
-
-XIII. Removing unwanted object code
-
-There are a bunch of #define's in pngconf.h that control what parts of
-libpng are compiled. All the defines end in _SUPPORTED. If you are
-never going to use a capability, you can change the #define to #undef
-before recompiling libpng and save yourself code and data space, or
-you can turn off individual capabilities with defines that begin with
-"PNG_NO_".
-
-In libpng-1.5.0 and later, the #define's are in pnglibconf.h instead.
-
-You can also turn all of the transforms and ancillary chunk capabilities
-off en masse with compiler directives that define
-PNG_NO_READ[or WRITE]_TRANSFORMS, or PNG_NO_READ[or WRITE]_ANCILLARY_CHUNKS,
-or all four, along with directives to turn on any of the capabilities that
-you do want. The PNG_NO_READ[or WRITE]_TRANSFORMS directives disable the
-extra transformations but still leave the library fully capable of reading
-and writing PNG files with all known public chunks. Use of the
-PNG_NO_READ[or WRITE]_ANCILLARY_CHUNKS directive produces a library
-that is incapable of reading or writing ancillary chunks. If you are
-not using the progressive reading capability, you can turn that off
-with PNG_NO_PROGRESSIVE_READ (don't confuse this with the INTERLACING
-capability, which you'll still have).
-
-All the reading and writing specific code are in separate files, so the
-linker should only grab the files it needs. However, if you want to
-make sure, or if you are building a stand alone library, all the
-reading files start with "pngr" and all the writing files start with "pngw".
-The files that don't match either (like png.c, pngtrans.c, etc.)
-are used for both reading and writing, and always need to be included.
-The progressive reader is in pngpread.c
-
-If you are creating or distributing a dynamically linked library (a .so
-or DLL file), you should not remove or disable any parts of the library,
-as this will cause applications linked with different versions of the
-library to fail if they call functions not available in your library.
-The size of the library itself should not be an issue, because only
-those sections that are actually used will be loaded into memory.
-
-XIV. Enabling or disabling hardware optimizations
-
-Certain hardware capabilities, such as the Intel SSE instructions,
-are normally detected at run time. Enable them with configure options
-such as one of
-
- --enable-arm-neon=yes
- --enable-mips-msa=yes
- --enable-intel-sse=yes
- --enable-powerpc-vsx=yes
-
-or enable them all at once with
-
- --enable-hardware-optimizations=yes
-
-or, if you are not using "configure", you can use one
-or more of
-
- CPPFLAGS += "-DPNG_ARM_NEON"
- CPPFLAGS += "-DPNG_MIPS_MSA"
- CPPFLAGS += "-DPNG_INTEL_SSE"
- CPPFLAGS += "-DPNG_POWERPC_VSX"
-
-See for example scripts/makefile.linux-opt
-
-If you wish to avoid using them,
-you can disable them via the configure option
-
- --disable-hardware-optimizations
-
-to disable them all, or
-
- --enable-intel-sse=no
-
-to disable a particular one,
-or via compiler-command options such as
-
- CPPFLAGS += "-DPNG_ARM_NEON_OPT=0, -DPNG_MIPS_MSA_OPT=0,
- -DPNG_INTEL_SSE_OPT=0, -DPNG_POWERPC_VSX_OPT=0"
-
-If you are using cmake, hardware optimizations are "on"
-by default. To disable them, use
-
- cmake . -DPNG_ARM_NEON=no -DPNG_INTEL_SSE=no \
- -DPNG_MIPS_MSA=no -DPNG_POWERPC_VSX=no
-
-or disable them all at once with
-
- cmake . -DPNG_HARDWARE_OPTIMIZATIONS=no
-
-XV. Changes to the build and configuration of libpng in libpng-1.5.x
-
-Details of internal changes to the library code can be found in the CHANGES
-file and in the GIT repository logs. These will be of no concern to the vast
-majority of library users or builders; however, the few who configure libpng
-to a non-default feature set may need to change how this is done.
-
-There should be no need for library builders to alter build scripts if
-these use the distributed build support - configure or the makefiles -
-however, users of the makefiles may care to update their build scripts
-to build pnglibconf.h where the corresponding makefile does not do so.
-
-Building libpng with a non-default configuration has changed completely.
-The old method using pngusr.h should still work correctly even though the
-way pngusr.h is used in the build has been changed; however, library
-builders will probably want to examine the changes to take advantage of
-new capabilities and to simplify their build system.
-
-A. Specific changes to library configuration capabilities
-
-The exact mechanism used to control attributes of API functions has
-changed. A single set of operating system independent macro definitions
-is used and operating system specific directives are defined in
-pnglibconf.h
-
-As part of this the mechanism used to choose procedure call standards on
-those systems that allow a choice has been changed. At present this only
-affects certain Microsoft (DOS, Windows) and IBM (OS/2) operating systems
-running on Intel processors. As before, PNGAPI is defined where required
-to control the exported API functions; however, two new macros, PNGCBAPI
-and PNGCAPI, are used instead for callback functions (PNGCBAPI) and
-(PNGCAPI) for functions that must match a C library prototype (currently
-only png_longjmp_ptr, which must match the C longjmp function.) The new
-approach is documented in pngconf.h
-
-Despite these changes, libpng 1.5.0 only supports the native C function
-calling standard on those platforms tested so far ("__cdecl" on Microsoft
-Windows). This is because the support requirements for alternative
-calling conventions seem to no longer exist. Developers who find it
-necessary to set PNG_API_RULE to 1 should advise the mailing list
-(png-mng-implement) of this and library builders who use Openwatcom and
-therefore set PNG_API_RULE to 2 should also contact the mailing list.
-
-B. Changes to the configuration mechanism
-
-Prior to libpng-1.5.0 library builders who needed to configure libpng
-had either to modify the exported pngconf.h header file to add system
-specific configuration or had to write feature selection macros into
-pngusr.h and cause this to be included into pngconf.h by defining
-PNG_USER_CONFIG. The latter mechanism had the disadvantage that an
-application built without PNG_USER_CONFIG defined would see the
-unmodified, default, libpng API and thus would probably fail to link.
-
-These mechanisms still work in the configure build and in any makefile
-build that builds pnglibconf.h, although the feature selection macros
-have changed somewhat as described above. In 1.5.0, however, pngusr.h is
-processed only once, at the time the exported header file pnglibconf.h is
-built. pngconf.h no longer includes pngusr.h; therefore, pngusr.h is ignored
-after the build of pnglibconf.h and it is never included in an application
-build.
-
-The formerly used alternative of adding a list of feature macros to the
-CPPFLAGS setting in the build also still works; however, the macros will be
-copied to pnglibconf.h and this may produce macro redefinition warnings
-when the individual C files are compiled.
-
-All configuration now only works if pnglibconf.h is built from
-scripts/pnglibconf.dfa. This requires the program awk. Brian Kernighan
-(the original author of awk) maintains C source code of that awk and this
-and all known later implementations (often called by subtly different
-names - nawk and gawk for example) are adequate to build pnglibconf.h.
-The Sun Microsystems (now Oracle) program 'awk' is an earlier version
-and does not work; this may also apply to other systems that have a
-functioning awk called 'nawk'.
-
-Configuration options are now documented in scripts/pnglibconf.dfa. This
-file also includes dependency information that ensures a configuration is
-consistent; that is, if a feature is switched off, dependent features are
-also switched off. As a recommended alternative to using feature macros in
-pngusr.h a system builder may also define equivalent options in pngusr.dfa
-(or, indeed, any file) and add that to the configuration by setting
-DFA_XTRA to the file name. The makefiles in contrib/pngminim illustrate
-how to do this, and also illustrate a case where pngusr.h is still required.
-
-After you have built libpng, the definitions that were recorded in
-pnglibconf.h are available to your application (pnglibconf.h is included
-in png.h and gets installed alongside png.h and pngconf.h in your
-$PREFIX/include directory). Do not edit pnglibconf.h after you have built
-libpng, because than the settings would not accurately reflect the settings
-that were used to build libpng.
-
-XVI. Setjmp/longjmp issues
-
-Libpng uses setjmp()/longjmp() for error handling. Unfortunately setjmp()
-is known to be not thread-safe on some platforms and we don't know of
-any platform where it is guaranteed to be thread-safe. Therefore, if
-your application is going to be using multiple threads, you should
-configure libpng with PNG_NO_SETJMP in your pngusr.dfa file, with
--DPNG_NO_SETJMP on your compile line, or with
-
- #undef PNG_SETJMP_SUPPORTED
-
-in your pnglibconf.h or pngusr.h.
-
-Starting with libpng-1.6.0, the library included a "simplified API".
-This requires setjmp/longjmp, so you must either build the library
-with PNG_SETJMP_SUPPORTED defined, or with PNG_SIMPLIFIED_READ_SUPPORTED
-and PNG_SIMPLIFIED_WRITE_SUPPORTED undefined.
-
-XVII. Common linking failures
-
-If your application fails to find libpng or zlib entries while linking:
-
- Be sure "-lz" appears after "-lpng" on your linking command.
-
- Be sure you have built libpng, zlib, and your application for the
- same platform (e.g., 32-bit or 64-bit).
-
- If you are using the vstudio project, observe the WARNING in
- project/vstudio/README.txt.
-
-XVIII. Other sources of information about libpng:
-
-Further information can be found in the README and libpng-manual.txt
-files, in the individual makefiles, in png.h, and the manual pages
-libpng.3 and png.5.
-
-Copyright (c) 1998-2002,2006-2016 Glenn Randers-Pehrson
-This document is released under the libpng license.
-For conditions of distribution and use, see the disclaimer
-and license in png.h.
diff --git a/Makefile.am b/Makefile.am
deleted file mode 100644
index 4f621aa..0000000
--- a/Makefile.am
+++ /dev/null
@@ -1,393 +0,0 @@
-# Makefile.am, the source file for Makefile.in (and hence Makefile), is
-#
-# Copyright (c) 2018 Cosmin Truta
-# Copyright (c) 2004-2016 Glenn Randers-Pehrson
-#
-# This code is released under the libpng license.
-# For conditions of distribution and use, see the disclaimer
-# and license in png.h
-
-PNGLIB_BASENAME= libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@
-
-ACLOCAL_AMFLAGS = -I scripts
-
-# test programs - run on make check, make distcheck
-check_PROGRAMS= pngtest pngunknown pngstest pngvalid pngimage pngcp
-if HAVE_CLOCK_GETTIME
-check_PROGRAMS += timepng
-endif
-
-# Utilities - installed
-bin_PROGRAMS= pngfix png-fix-itxt
-
-# This ensures that pnglibconf.h gets built at the start of 'make all' or
-# 'make check', but it does not add dependencies to the individual programs,
-# this is done below.
-#
-# IMPORTANT: always add the object modules of new programs to the list below
-# because otherwise the sequence 'configure; make new-program' will *sometimes*
-# result in the installed (system) pnglibconf.h being used and the result is
-# always wrong and always very confusing.
-BUILT_SOURCES = pnglibconf.h
-
-pngtest_SOURCES = pngtest.c
-pngtest_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-
-pngvalid_SOURCES = contrib/libtests/pngvalid.c
-pngvalid_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-
-pngstest_SOURCES = contrib/libtests/pngstest.c
-pngstest_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-
-pngunknown_SOURCES = contrib/libtests/pngunknown.c
-pngunknown_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-
-pngimage_SOURCES = contrib/libtests/pngimage.c
-pngimage_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-
-timepng_SOURCES = contrib/libtests/timepng.c
-timepng_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-
-pngfix_SOURCES = contrib/tools/pngfix.c
-pngfix_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-
-png_fix_itxt_SOURCES = contrib/tools/png-fix-itxt.c
-
-pngcp_SOURCES = contrib/tools/pngcp.c
-pngcp_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-
-# Generally these are single line shell scripts to run a test with a particular
-# set of parameters:
-TESTS =\
- tests/pngtest\
- tests/pngtest-badpngs\
- tests/pngvalid-gamma-16-to-8 tests/pngvalid-gamma-alpha-mode\
- tests/pngvalid-gamma-background tests/pngvalid-gamma-expand16-alpha-mode\
- tests/pngvalid-gamma-expand16-background\
- tests/pngvalid-gamma-expand16-transform tests/pngvalid-gamma-sbit\
- tests/pngvalid-gamma-threshold tests/pngvalid-gamma-transform\
- tests/pngvalid-progressive-size\
- tests/pngvalid-progressive-interlace-standard\
- tests/pngvalid-transform\
- tests/pngvalid-progressive-standard tests/pngvalid-standard\
- tests/pngstest-1.8 tests/pngstest-1.8-alpha tests/pngstest-linear\
- tests/pngstest-linear-alpha tests/pngstest-none tests/pngstest-none-alpha\
- tests/pngstest-sRGB tests/pngstest-sRGB-alpha tests/pngunknown-IDAT\
- tests/pngunknown-discard tests/pngunknown-if-safe tests/pngunknown-sAPI\
- tests/pngunknown-sTER tests/pngunknown-save tests/pngunknown-vpAg\
- tests/pngimage-quick tests/pngimage-full
-
-# man pages
-dist_man_MANS= libpng.3 libpngpf.3 png.5
-
-# generate the -config scripts if required
-binconfigs= libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@-config
-EXTRA_SCRIPTS= libpng-config libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@-config
-bin_SCRIPTS= @binconfigs@
-
-# rules to build libpng, only build the old library on request
-lib_LTLIBRARIES=libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-# EXTRA_LTLIBRARIES= libpng.la
-libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES = png.c pngerror.c\
- pngget.c pngmem.c pngpread.c pngread.c pngrio.c pngrtran.c pngrutil.c\
- pngset.c pngtrans.c pngwio.c pngwrite.c pngwtran.c pngwutil.c\
- png.h pngconf.h pngdebug.h pnginfo.h pngpriv.h pngstruct.h pngusr.dfa
-
-if PNG_ARM_NEON
-libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES += arm/arm_init.c\
- arm/filter_neon.S arm/filter_neon_intrinsics.c \
- arm/palette_neon_intrinsics.c
-endif
-
-if PNG_MIPS_MSA
-libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES += mips/mips_init.c\
- mips/filter_msa_intrinsics.c
-endif
-
-if PNG_INTEL_SSE
-libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES += intel/intel_init.c\
- intel/filter_sse2_intrinsics.c
-endif
-
-if PNG_POWERPC_VSX
-libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES += powerpc/powerpc_init.c\
- powerpc/filter_vsx_intrinsics.c
-endif
-
-nodist_libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_SOURCES = pnglibconf.h
-
-libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS = -no-undefined -export-dynamic \
- -version-number @PNGLIB_MAJOR@@PNGLIB_MINOR@:@PNGLIB_RELEASE@:0
-
-if HAVE_LD_VERSION_SCRIPT
-# Versioned symbols and restricted exports
-if HAVE_SOLARIS_LD
- libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS += -Wl,-M -Wl,libpng.vers
-else
- libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS += -Wl,--version-script=libpng.vers
-endif
-
- libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_DEPENDENCIES = libpng.vers
-else
-# Only restricted exports when possible
- libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_LDFLAGS += -export-symbols libpng.sym
- libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_DEPENDENCIES = libpng.sym
-endif
-
-#distribute headers in /usr/include/libpng/*
-pkgincludedir= $(includedir)/$(PNGLIB_BASENAME)
-pkginclude_HEADERS= png.h pngconf.h
-nodist_pkginclude_HEADERS= pnglibconf.h
-
-# pkg-config stuff, note that libpng.pc is always required in order
-# to get the correct library
-pkgconfigdir = @pkgconfigdir@
-pkgconfig_DATA = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.pc
-
-# Extra source distribution files, '${srcdir}' is used below to stop build files
-# from those directories being included. This only works if the configure is
-# not done in the source directory!
-EXTRA_DIST= \
- ANNOUNCE AUTHORS CHANGES INSTALL LICENSE README TODO TRADEMARK \
- pngtest.png pngbar.png pngnow.png pngbar.jpg autogen.sh \
- ${srcdir}/contrib ${srcdir}/projects ${srcdir}/scripts \
- $(TESTS) $(XFAIL_TESTS) tests/pngstest \
- CMakeLists.txt example.c libpng-manual.txt
-
-SCRIPT_CLEANFILES=scripts/*.out scripts/*.chk
-
-CLEANFILES= *.tf? pngout.png libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.pc \
- libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@-config libpng.vers libpng.sym \
- check.new pnglibconf.h pngprefix.h symbols.new pngtest-log.txt \
- pnglibconf.out pnglibconf.c pnglibconf.pre pnglibconf.dfn \
- $(SCRIPT_CLEANFILES)
-
-MAINTAINERCLEANFILES = Makefile.in aclocal.m4 config.guess config.h.in \
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-# steps (unless targe_CFLAGS is specified; that will take precedence over
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-DFNCPP = @DFNCPP@
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-SUFFIXES = .chk .out
-
-$(PNGLIB_BASENAME).pc: libpng.pc
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-
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-
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- rm -f $@
- cp $? $@
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- rm -f $@
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diff --git a/Makefile.in b/Makefile.in
deleted file mode 100644
index 81ac1c8..0000000
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-pdfdir = @pdfdir@
-
-# pkg-config stuff, note that libpng.pc is always required in order
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-pkgconfigdir = @pkgconfigdir@
-prefix = @prefix@
-program_transform_name = @program_transform_name@
-psdir = @psdir@
-sbindir = @sbindir@
-sharedstatedir = @sharedstatedir@
-srcdir = @srcdir@
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-target_alias = @target_alias@
-top_build_prefix = @top_build_prefix@
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-top_srcdir = @top_srcdir@
-PNGLIB_BASENAME = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@
-ACLOCAL_AMFLAGS = -I scripts
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-# This ensures that pnglibconf.h gets built at the start of 'make all' or
-# 'make check', but it does not add dependencies to the individual programs,
-# this is done below.
-#
-# IMPORTANT: always add the object modules of new programs to the list below
-# because otherwise the sequence 'configure; make new-program' will *sometimes*
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-# always wrong and always very confusing.
-BUILT_SOURCES = pnglibconf.h
-pngtest_SOURCES = pngtest.c
-pngtest_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
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-pngvalid_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-pngstest_SOURCES = contrib/libtests/pngstest.c
-pngstest_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-pngunknown_SOURCES = contrib/libtests/pngunknown.c
-pngunknown_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-pngimage_SOURCES = contrib/libtests/pngimage.c
-pngimage_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-timepng_SOURCES = contrib/libtests/timepng.c
-timepng_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-pngfix_SOURCES = contrib/tools/pngfix.c
-pngfix_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-png_fix_itxt_SOURCES = contrib/tools/png-fix-itxt.c
-pngcp_SOURCES = contrib/tools/pngcp.c
-pngcp_LDADD = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-
-# Generally these are single line shell scripts to run a test with a particular
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-TESTS = \
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- tests/pngtest-badpngs\
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- tests/pngvalid-gamma-background tests/pngvalid-gamma-expand16-alpha-mode\
- tests/pngvalid-gamma-expand16-background\
- tests/pngvalid-gamma-expand16-transform tests/pngvalid-gamma-sbit\
- tests/pngvalid-gamma-threshold tests/pngvalid-gamma-transform\
- tests/pngvalid-progressive-size\
- tests/pngvalid-progressive-interlace-standard\
- tests/pngvalid-transform\
- tests/pngvalid-progressive-standard tests/pngvalid-standard\
- tests/pngstest-1.8 tests/pngstest-1.8-alpha tests/pngstest-linear\
- tests/pngstest-linear-alpha tests/pngstest-none tests/pngstest-none-alpha\
- tests/pngstest-sRGB tests/pngstest-sRGB-alpha tests/pngunknown-IDAT\
- tests/pngunknown-discard tests/pngunknown-if-safe tests/pngunknown-sAPI\
- tests/pngunknown-sTER tests/pngunknown-save tests/pngunknown-vpAg\
- tests/pngimage-quick tests/pngimage-full
-
-
-# man pages
-dist_man_MANS = libpng.3 libpngpf.3 png.5
-EXTRA_SCRIPTS = libpng-config libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@-config
-bin_SCRIPTS = @binconfigs@
-
-# rules to build libpng, only build the old library on request
-lib_LTLIBRARIES = libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@.la
-# EXTRA_LTLIBRARIES= libpng.la
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-$(PNGLIB_BASENAME).pc: libpng.pc
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-
-$(PNGLIB_BASENAME)-config: libpng-config
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-scripts/sym.out scripts/vers.out: png.h pngconf.h pnglibconf.h
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-scripts/symbols.out: png.h pngconf.h $(srcdir)/scripts/pnglibconf.h.prebuilt
-scripts/intprefix.out: pnglibconf.h
-
-libpng.sym: scripts/sym.out
- rm -f $@
- cp $? $@
-libpng.vers: scripts/vers.out
- rm -f $@
- cp $? $@
-
-# Rename functions in scripts/prefix.out with a PNG_PREFIX prefix.
-# Rename macros in scripts/macro.lst from PNG_PREFIXpng_ to PNG_ (the actual
-# implementation of the macro).
-@DO_PNG_PREFIX_TRUE@pnglibconf.h: pnglibconf.out scripts/prefix.out scripts/macro.lst
-@DO_PNG_PREFIX_TRUE@ rm -f $@
-@DO_PNG_PREFIX_TRUE@ $(AWK) 's==0 && NR>1{print prev}\
-@DO_PNG_PREFIX_TRUE@ s==0{prev=$$0}\
-@DO_PNG_PREFIX_TRUE@ s==1{print "#define", $$1, "@PNG_PREFIX@" $$1}\
-@DO_PNG_PREFIX_TRUE@ s==2{print "#define @PNG_PREFIX@png_" $$1, "PNG_" $$1}\
-@DO_PNG_PREFIX_TRUE@ END{print prev}' s=0 pnglibconf.out s=1 scripts/prefix.out\
-@DO_PNG_PREFIX_TRUE@ s=2 ${srcdir}/scripts/macro.lst >pnglibconf.tf8
-@DO_PNG_PREFIX_TRUE@ mv pnglibconf.tf8 $@
-
-@DO_PNG_PREFIX_TRUE@pngprefix.h: scripts/intprefix.out
-@DO_PNG_PREFIX_TRUE@ rm -f pngprefix.tf1
-@DO_PNG_PREFIX_TRUE@ $(AWK) '{print "#define", $$1, "@PNG_PREFIX@" $$1}' $? >pngprefix.tf1
-@DO_PNG_PREFIX_TRUE@ mv pngprefix.tf1 $@
-@DO_PNG_PREFIX_FALSE@pnglibconf.h: pnglibconf.out
-@DO_PNG_PREFIX_FALSE@ rm -f $@
-@DO_PNG_PREFIX_FALSE@ cp $? $@
-
-@DO_PNG_PREFIX_FALSE@pngprefix.h: # is empty
-@DO_PNG_PREFIX_FALSE@ :>$@
-
-$(srcdir)/scripts/pnglibconf.h.prebuilt:
- @echo "Attempting to build $@" >&2
- @echo "This is a machine generated file, but if you want to make" >&2
- @echo "a new one simply make 'scripts/pnglibconf.out', copy that" >&2
- @echo "AND set PNG_ZLIB_VERNUM to 0 (you MUST do this)" >&2
- @exit 1
-
-# The following is necessary to ensure that the local pnglibconf.h is used, not
-# an installed one (this can happen immediately after on a clean system if
-# 'make test' is the first thing the user does.) Only files which include
-# one of the png source files (typically png.h or pngpriv.h) need to be listed
-# here:
-pngtest.o: pnglibconf.h
-
-contrib/libtests/makepng.o: pnglibconf.h
-contrib/libtests/pngstest.o: pnglibconf.h
-contrib/libtests/pngunknown.o: pnglibconf.h
-contrib/libtests/pngimage.o: pnglibconf.h
-contrib/libtests/pngvalid.o: pnglibconf.h
-contrib/libtests/readpng.o: pnglibconf.h
-contrib/libtests/tarith.o: pnglibconf.h
-contrib/libtests/timepng.o: pnglibconf.h
-
-contrib/tools/makesRGB.o: pnglibconf.h
-contrib/tools/pngfix.o: pnglibconf.h
-contrib/tools/pngcp.o: pnglibconf.h
-
-.c.out:
- rm -f $@ $*.tf[12]
- test -d scripts || mkdir scripts || test -d scripts
- $(DFNCPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES)\
- $(CPPFLAGS) $(SYMBOL_CFLAGS) $< > $*.tf1
- $(AWK) -f "${srcdir}/scripts/dfn.awk" out="$*.tf2" $*.tf1 1>&2
- rm -f $*.tf1
- mv $*.tf2 $@
-
-# The .c file for pnglibconf.h is machine generated
-pnglibconf.c: scripts/pnglibconf.dfa scripts/options.awk pngconf.h pngusr.dfa $(DFA_XTRA)
- rm -f $@ $*.tf[45]
- $(AWK) -f ${srcdir}/scripts/options.awk out=$*.tf4 version=search\
- ${srcdir}/pngconf.h ${srcdir}/scripts/pnglibconf.dfa\
- ${srcdir}/pngusr.dfa $(DFA_XTRA) 1>&2
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- rm $*.tf4
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-# Symbol checks (.def and .out files should match)
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-
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-
-# used on demand to regenerate the standard header, CPPFLAGS should
-# be empty - no non-standard defines
-scripts/pnglibconf.c: scripts/pnglibconf.dfa scripts/options.awk pngconf.h
- rm -f $@ pnglibconf.tf[67]
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- ${srcdir}/scripts/pnglibconf.dfa 1>&2
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-$(libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@_la_OBJECTS): png.h pngconf.h \
- pnglibconf.h pngpriv.h pngdebug.h pnginfo.h pngstruct.h pngprefix.h
-
-test: check-am
-
-# Extra checks
-check: scripts/symbols.chk
-
-# Don't distribute the generated script files
-dist-hook:
- cd '$(top_distdir)'; rm -f $(SCRIPT_CLEANFILES)
-
-# Make links between installed files with release-specific names and the generic
-# file names. If this install rule is run the generic names will be deleted and
-# recreated - this has obvious issues for systems with multiple installations.
-
-install-header-links:
- @set -ex; cd '$(DESTDIR)$(includedir)'; for f in $(HEADERS); do \
- rm -f "$$f"; $(LN_S) "$(PNGLIB_BASENAME)/$$f" "$$f"; done
-
-uninstall-header-links:
- cd '$(DESTDIR)$(includedir)'; rm -f $(HEADERS)
-
-install-libpng-pc:
- @set -ex; cd '$(DESTDIR)$(pkgconfigdir)'; rm -f libpng.pc; \
- $(LN_S) '$(PNGLIB_BASENAME).pc' libpng.pc
-
-uninstall-libpng-pc:
- rm -f '$(DESTDIR)$(pkgconfigdir)/libpng.pc'
-
-install-library-links:
- @set -x; cd '$(DESTDIR)$(libdir)';\
- for ext in $(EXT_LIST); do\
- rm -f "libpng.$$ext";\
- if test -f "$(PNGLIB_BASENAME).$$ext"; then\
- $(LN_S) "$(PNGLIB_BASENAME).$$ext" "libpng.$$ext" || exit 1;\
- fi;\
- done
-
-uninstall-library-links:
- @set -x; cd '$(DESTDIR)$(libdir)'; for ext in $(EXT_LIST); do\
- rm -f "libpng.$$ext"; done
-
-install-libpng-config:
- @set -ex; cd '$(DESTDIR)$(bindir)'; rm -f libpng-config; \
- $(LN_S) '$(PNGLIB_BASENAME)-config' libpng-config
-
-uninstall-libpng-config:
- rm -f '$(DESTDIR)$(bindir)/libpng-config'
-
-# If --enable-unversioned-links is specified the header and lib file links
-# will be automatically made on a 'make install':
-
-@DO_INSTALL_LINKS_TRUE@install-data-hook: install-header-links
-@DO_INSTALL_LINKS_TRUE@uninstall-hook: uninstall-header-links
-@DO_INSTALL_LINKS_TRUE@install-exec-hook: install-library-links
-@DO_INSTALL_LINKS_TRUE@uninstall-hook: uninstall-library-links
-
-# Likewise, --install-pc causes libpng.pc to be constructed:
-
-@DO_INSTALL_LIBPNG_PC_TRUE@install-data-hook: install-libpng-pc
-@DO_INSTALL_LIBPNG_PC_TRUE@uninstall-hook: uninstall-libpng-pc
-
-# And --install-config:
-
-@DO_INSTALL_LIBPNG_CONFIG_TRUE@install-exec-hook: install-libpng-config
-@DO_INSTALL_LIBPNG_CONFIG_TRUE@uninstall-hook: uninstall-libpng-config
-
-# The following addition ensures that 'make all' always builds the test programs
-# too. It used to, but some change either in libpng or configure stopped this
-# working.
-all-am: $(check_PROGRAMS)
-
-# Tell versions [3.59,3.63) of GNU make to not export all variables.
-# Otherwise a system limit (for SysV at least) may be exceeded.
-.NOEXPORT:
diff --git a/OWNERS b/OWNERS
new file mode 100644
index 0000000..f84548a
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1,3 @@
+villarreald@google.com
+reveman@google.com
+guruji@google.com
diff --git a/README.fuchsia b/README.fuchsia
new file mode 100644
index 0000000..1435241
--- /dev/null
+++ b/README.fuchsia
@@ -0,0 +1,24 @@
+Name: libpng
+URL: http://libpng.org/
+Upstream Git: https://github.com/glennrp/libpng
+Version: 1.6.37
+Security Critical: yes
+License: libpng license
+License File: LICENSE
+License Android Compatible: yes
+Description:
+
+Updated to 1.6.37, stripped all unneeded files.
+
+- Strip all unneeded files
+ rm -r contrib projects scripts tests \
+ ANNOUNCE CHANGES INSTALL TODO autogen.sh configure.ac CMakeLists.txt Makefile.am \
+ aclocal.m4 compile config.guess config.sub configure depcomp install.sh ltmain.sh \
+ missing test-driver libpng-manual.txt \
+ *.in *.3 *.5 *.png *.jpg *.dfa
+
+- Use custom configuration file pnglibconf.h, which turns off all features that
+ are not in use.
+- Use custom prefix file pngprefix.h, which avoids namespace conflicts with
+ pdfium's copy of libpng.
+- Configures custom png chunk user limits (crbug.com/117369) in pnglibconf.h.
diff --git a/TODO b/TODO
deleted file mode 100644
index 562dab0..0000000
--- a/TODO
+++ /dev/null
@@ -1,23 +0,0 @@
-TODO - list of things to do for libpng:
-
-* Fix all defects (duh!)
-* Better C++ wrapper / full C++ implementation (?)
-* Fix the problems with C++ and 'extern "C"'.
-* cHRM transformation.
-* Palette creation.
-* "grayscale->palette" transformation and "palette->grayscale" detection.
-* Improved dithering.
-* Multi-lingual error and warning message support.
-* Complete sRGB transformation. (Currently it simply uses gamma=0.45455.)
-* Man pages for function calls.
-* Better documentation.
-* Better filter selection
- (e.g., counting huffman bits/precompression; filter inertia; filter costs).
-* Histogram creation.
-* Text conversion between different code pages (e.g., Latin-1 -> Mac).
-* Avoid building gamma tables whenever possible.
-* Greater precision in changing to linear gamma for compositing against
- background, and in doing rgb-to-gray transformations.
-* Investigate pre-incremented loop counters and other loop constructions.
-* Interpolated method of handling interlacing.
-* More validations for libpng transformations.
diff --git a/aclocal.m4 b/aclocal.m4
deleted file mode 100644
index bc18c34..0000000
--- a/aclocal.m4
+++ /dev/null
@@ -1,1196 +0,0 @@
-# generated automatically by aclocal 1.16.1 -*- Autoconf -*-
-
-# Copyright (C) 1996-2018 Free Software Foundation, Inc.
-
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
-# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
-# PARTICULAR PURPOSE.
-
-m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
-m4_ifndef([AC_AUTOCONF_VERSION],
- [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
-m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],,
-[m4_warning([this file was generated for autoconf 2.69.
-You have another version of autoconf. It may work, but is not guaranteed to.
-If you have problems, you may need to regenerate the build system entirely.
-To do so, use the procedure documented by the package, typically 'autoreconf'.])])
-
-# Copyright (C) 2002-2018 Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
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- AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
- rm -rf conftest.dir
- if test -s conftest.tar; then
- AM_RUN_LOG([$am__untar <conftest.tar])
- AM_RUN_LOG([cat conftest.dir/file])
- grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
- fi
- done
- rm -rf conftest.dir
-
- AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
- AC_MSG_RESULT([$am_cv_prog_tar_$1])])
-
-AC_SUBST([am__tar])
-AC_SUBST([am__untar])
-]) # _AM_PROG_TAR
-
-m4_include([scripts/libtool.m4])
-m4_include([scripts/ltoptions.m4])
-m4_include([scripts/ltsugar.m4])
-m4_include([scripts/ltversion.m4])
-m4_include([scripts/lt~obsolete.m4])
diff --git a/autogen.sh b/autogen.sh
deleted file mode 100755
index a46daf6..0000000
--- a/autogen.sh
+++ /dev/null
@@ -1,225 +0,0 @@
-#! /bin/sh
-#
-# Run 'autoreconf' to build 'configure', 'Makefile.in' and other configure
-# control files.
-#
-# The first time this is run on a GIT checkout the only files that exist are
-# configure.ac and Makefile.am; all of the autotools support scripts are
-# missing. They are instantiated with autoreconf --force --install.
-#
-# For regular ("tarball") distributions all the files should exist. We do not
-# want them to be updated *under any circumstances*. It should never be
-# necessary to run autogen.sh because ./configure --enable-maintainer-mode says
-# what to do if Makefile.am or configure.ac are changed.
-#
-# It is *probably* OK to update the files on a GIT checkout, because they have
-# come from the local tools, but leave that to the user who is assumed to know
-# whether it is ok or required.
-#
-# This script is intended to work without arguments, there are, however, hidden
-# arguments (a) for use while testing the script and (b) to fix up systems that
-# have been broken. If (b) is required the script prompts for the correct
-# options. For this reason the options are *NOT* documented in the help; this
-# is deliberate; UTSL.
-#
-clean=
-maintainer=
-while test $# -gt 0
-do
- case "$1" in
- --maintainer)
- maintainer=1;;
-
- --clean)
- clean=1;;
-
- *)
- exec >&2
- echo "$0: usage: ./autogen.sh"
- if test -d .git
- then
- echo " ./autogen.sh generates the configure script and"
- echo " Makefile.in, or refreshes them after changes to Makefile.am"
- echo " or configure.ac. You may prefer to just run autoreconf."
- elif test -z "$maintainer"
- then
- echo " DO NOT RUN THIS SCRIPT."
- echo " If you need to change Makefile.am or configure.ac then you"
- echo " also need to run ./configure --enable-maintainer-mode and"
- echo " use the appropriate autotools, *NOT* this script, to update"
- echo " everything, please check the documentation of autoreconf."
- echo " WARNING: libpng is intentionally generated with a known,"
- echo " fixed, set of autotools. It is known *NOT* to work with"
- echo " the collection of autotools distributed on highly reputable"
- echo " operating systems."
- echo " Remember: autotools is GNU software, you are expected to"
- echo " pay for support."
- else
- echo " You have run autogen.sh with --maintainer enabled and you"
- echo " are not using a GIT distribution, then you have given an"
- echo " unrecognized argument. This is not good. --maintainer"
- echo " switches off any assumptions that you might not know what"
- echo " you are doing."
- fi
- exit 1;;
- esac
-
- shift
-done
-#
-# First check for a set of the autotools files; if absent then this is assumed
-# to be a GIT version and the local autotools must be used. If present this
-# is a tarball distribution and the script should not be used. If partially
-# present bad things are happening.
-#
-# The autotools generated files:
-libpng_autotools_files="Makefile.in aclocal.m4 config.guess config.h.in
- config.sub configure depcomp install-sh ltmain.sh missing\
- test-driver"
-#
-# Files generated by versions of configue >2.68 or automake >1.13 (i.e. later
-# versions than those required by configure.ac):
-libpng_autotools_extra="compile config.h.in~"
-#
-# These are separate because 'maintainer-clean' does not remove them.
-libpng_libtool_files="scripts/libtool.m4 scripts/ltoptions.m4\
- scripts/ltsugar.m4 scripts/ltversion.m4 scripts/lt~obsolete.m4"
-
-libpng_autotools_dirs="autom4te.cache" # not required
-#
-# The configure generated files:
-libpng_configure_files="Makefile config.h config.log config.status\
- libpng-config libpng.pc libtool stamp-h1"
-
-libpng_configure_dirs=".deps"
-#
-# We must remove the configure generated files as well as the autotools
-# generated files if autotools are regenerated because otherwise if configure
-# has been run without "--enable-maintainer-mode" make can do a partial update
-# of Makefile. These functions do the two bits of cleaning.
-clean_autotools(){
- rm -rf $libpng_autotools_files $libpng_libtool_files $libpng_autotools_dirs
- rm -rf $libpng_autotools_extra
-}
-
-clean_configure(){
- rm -rf $libpng_configure_files $libpng_configure_dirs
-}
-#
-# Clean: remove everything (this is to help with testing)
-if test -n "$clean"
-then
- clean_configure
- if test -n "$maintainer"
- then
- clean_autotools
- fi
-
- exit 0
-fi
-#
-# Validate the distribution.
-libpng_autotools_file_found=
-libpng_autotools_file_missing=
-for file in $libpng_autotools_files
-do
- if test -f "$file"
- then
- libpng_autotools_file_found=1
- else
- libpng_autotools_file_missing=1
- fi
-done
-#
-# Presence of one of these does not *invalidate* missing, but absence
-# invalidates found.
-for file in $libpng_libtool_files
-do
- if test ! -f "$file"
- then
- libpng_autotools_file_missing=1
- fi
-done
-#
-# The cache directory doesn't matter - it will be regenerated and does not exist
-# anyway in a tarball.
-#
-# Either everything is missing or everything is there, the --maintainer option
-# just changes this so that the mode is set to generate all the files.
-mode=
-if test -z "$libpng_autotools_file_found" -o -n "$maintainer"
-then
- mode="autoreconf"
-else
- if test -n "$libpng_autotools_file_missing"
- then
- mode="broken"
- else
- mode="configure"
- fi
-fi
-#
-# So:
-case "$mode" in
- autoreconf)
- # Clean in case configure files exist
- clean_configure
- clean_autotools
- # Everything must be initialized, so use --force
- if autoreconf --warnings=all --force --install
- then
- missing=
- for file in $libpng_autotools_files
- do
- test -f "$file" || missing=1
- done
- # ignore the cache directory
- test -z "$missing" || {
- exec >&2
- echo "autoreconf was run, but did not produce all the expected"
- echo "files. It is likely that your autotools installation is"
- echo "not compatible with that expected by libpng."
- exit 1
- }
- else
- exec >&2
- echo "autoreconf failed: your version of autotools is incompatible"
- echo "with this libpng version. Please use a distributed archive"
- echo "(which includes the autotools generated files) and run configure"
- echo "instead."
- exit 1
- fi;;
-
- configure)
- if test -d .git
- then
- exec >&2
- echo "ERROR: running autoreconf on an initialized system"
- echo " This is not necessary; it is only necessary to remake the"
- echo " autotools generated files if Makefile.am or configure.ac"
- echo " change and make does the right thing with:"
- echo
- echo " ./configure --enable-maintainer-mode."
- echo
- echo " You can run autoreconf yourself if you don't like maintainer"
- echo " mode and you can also just run autoreconf -f -i to initialize"
- echo " everything in the first place; this script is only for"
- echo " compatibility with prior releases."
- exit 1
- else
- exec >&2
- echo "autogen.sh is intended only to generate 'configure' on systems"
- echo "that do not have it. You have a complete 'configure', if you"
- echo "need to change Makefile.am or configure.ac you also need to"
- echo "run configure with the --enable-maintainer-mode option."
- exit 1
- fi;;
-
- broken)
- exec >&2
- echo "Your system has a partial set of autotools generated files."
- echo "autogen.sh is unable to proceed. The full set of files is"
- echo "contained in the libpng 'tar' distribution archive and you do"
- echo "not need to run autogen.sh if you use it."
- exit 1;;
-esac
diff --git a/compile b/compile
deleted file mode 100755
index 99e5052..0000000
--- a/compile
+++ /dev/null
@@ -1,348 +0,0 @@
-#! /bin/sh
-# Wrapper for compilers which do not understand '-c -o'.
-
-scriptversion=2018-03-07.03; # UTC
-
-# Copyright (C) 1999-2018 Free Software Foundation, Inc.
-# Written by Tom Tromey <tromey@cygnus.com>.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <https://www.gnu.org/licenses/>.
-
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-# This file is maintained in Automake, please report
-# bugs to <bug-automake@gnu.org> or send patches to
-# <automake-patches@gnu.org>.
-
-nl='
-'
-
-# We need space, tab and new line, in precisely that order. Quoting is
-# there to prevent tools from complaining about whitespace usage.
-IFS=" "" $nl"
-
-file_conv=
-
-# func_file_conv build_file lazy
-# Convert a $build file to $host form and store it in $file
-# Currently only supports Windows hosts. If the determined conversion
-# type is listed in (the comma separated) LAZY, no conversion will
-# take place.
-func_file_conv ()
-{
- file=$1
- case $file in
- / | /[!/]*) # absolute file, and not a UNC file
- if test -z "$file_conv"; then
- # lazily determine how to convert abs files
- case `uname -s` in
- MINGW*)
- file_conv=mingw
- ;;
- CYGWIN*)
- file_conv=cygwin
- ;;
- *)
- file_conv=wine
- ;;
- esac
- fi
- case $file_conv/,$2, in
- *,$file_conv,*)
- ;;
- mingw/*)
- file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'`
- ;;
- cygwin/*)
- file=`cygpath -m "$file" || echo "$file"`
- ;;
- wine/*)
- file=`winepath -w "$file" || echo "$file"`
- ;;
- esac
- ;;
- esac
-}
-
-# func_cl_dashL linkdir
-# Make cl look for libraries in LINKDIR
-func_cl_dashL ()
-{
- func_file_conv "$1"
- if test -z "$lib_path"; then
- lib_path=$file
- else
- lib_path="$lib_path;$file"
- fi
- linker_opts="$linker_opts -LIBPATH:$file"
-}
-
-# func_cl_dashl library
-# Do a library search-path lookup for cl
-func_cl_dashl ()
-{
- lib=$1
- found=no
- save_IFS=$IFS
- IFS=';'
- for dir in $lib_path $LIB
- do
- IFS=$save_IFS
- if $shared && test -f "$dir/$lib.dll.lib"; then
- found=yes
- lib=$dir/$lib.dll.lib
- break
- fi
- if test -f "$dir/$lib.lib"; then
- found=yes
- lib=$dir/$lib.lib
- break
- fi
- if test -f "$dir/lib$lib.a"; then
- found=yes
- lib=$dir/lib$lib.a
- break
- fi
- done
- IFS=$save_IFS
-
- if test "$found" != yes; then
- lib=$lib.lib
- fi
-}
-
-# func_cl_wrapper cl arg...
-# Adjust compile command to suit cl
-func_cl_wrapper ()
-{
- # Assume a capable shell
- lib_path=
- shared=:
- linker_opts=
- for arg
- do
- if test -n "$eat"; then
- eat=
- else
- case $1 in
- -o)
- # configure might choose to run compile as 'compile cc -o foo foo.c'.
- eat=1
- case $2 in
- *.o | *.[oO][bB][jJ])
- func_file_conv "$2"
- set x "$@" -Fo"$file"
- shift
- ;;
- *)
- func_file_conv "$2"
- set x "$@" -Fe"$file"
- shift
- ;;
- esac
- ;;
- -I)
- eat=1
- func_file_conv "$2" mingw
- set x "$@" -I"$file"
- shift
- ;;
- -I*)
- func_file_conv "${1#-I}" mingw
- set x "$@" -I"$file"
- shift
- ;;
- -l)
- eat=1
- func_cl_dashl "$2"
- set x "$@" "$lib"
- shift
- ;;
- -l*)
- func_cl_dashl "${1#-l}"
- set x "$@" "$lib"
- shift
- ;;
- -L)
- eat=1
- func_cl_dashL "$2"
- ;;
- -L*)
- func_cl_dashL "${1#-L}"
- ;;
- -static)
- shared=false
- ;;
- -Wl,*)
- arg=${1#-Wl,}
- save_ifs="$IFS"; IFS=','
- for flag in $arg; do
- IFS="$save_ifs"
- linker_opts="$linker_opts $flag"
- done
- IFS="$save_ifs"
- ;;
- -Xlinker)
- eat=1
- linker_opts="$linker_opts $2"
- ;;
- -*)
- set x "$@" "$1"
- shift
- ;;
- *.cc | *.CC | *.cxx | *.CXX | *.[cC]++)
- func_file_conv "$1"
- set x "$@" -Tp"$file"
- shift
- ;;
- *.c | *.cpp | *.CPP | *.lib | *.LIB | *.Lib | *.OBJ | *.obj | *.[oO])
- func_file_conv "$1" mingw
- set x "$@" "$file"
- shift
- ;;
- *)
- set x "$@" "$1"
- shift
- ;;
- esac
- fi
- shift
- done
- if test -n "$linker_opts"; then
- linker_opts="-link$linker_opts"
- fi
- exec "$@" $linker_opts
- exit 1
-}
-
-eat=
-
-case $1 in
- '')
- echo "$0: No command. Try '$0 --help' for more information." 1>&2
- exit 1;
- ;;
- -h | --h*)
- cat <<\EOF
-Usage: compile [--help] [--version] PROGRAM [ARGS]
-
-Wrapper for compilers which do not understand '-c -o'.
-Remove '-o dest.o' from ARGS, run PROGRAM with the remaining
-arguments, and rename the output as expected.
-
-If you are trying to build a whole package this is not the
-right script to run: please start by reading the file 'INSTALL'.
-
-Report bugs to <bug-automake@gnu.org>.
-EOF
- exit $?
- ;;
- -v | --v*)
- echo "compile $scriptversion"
- exit $?
- ;;
- cl | *[/\\]cl | cl.exe | *[/\\]cl.exe | \
- icl | *[/\\]icl | icl.exe | *[/\\]icl.exe )
- func_cl_wrapper "$@" # Doesn't return...
- ;;
-esac
-
-ofile=
-cfile=
-
-for arg
-do
- if test -n "$eat"; then
- eat=
- else
- case $1 in
- -o)
- # configure might choose to run compile as 'compile cc -o foo foo.c'.
- # So we strip '-o arg' only if arg is an object.
- eat=1
- case $2 in
- *.o | *.obj)
- ofile=$2
- ;;
- *)
- set x "$@" -o "$2"
- shift
- ;;
- esac
- ;;
- *.c)
- cfile=$1
- set x "$@" "$1"
- shift
- ;;
- *)
- set x "$@" "$1"
- shift
- ;;
- esac
- fi
- shift
-done
-
-if test -z "$ofile" || test -z "$cfile"; then
- # If no '-o' option was seen then we might have been invoked from a
- # pattern rule where we don't need one. That is ok -- this is a
- # normal compilation that the losing compiler can handle. If no
- # '.c' file was seen then we are probably linking. That is also
- # ok.
- exec "$@"
-fi
-
-# Name of file we expect compiler to create.
-cofile=`echo "$cfile" | sed 's|^.*[\\/]||; s|^[a-zA-Z]:||; s/\.c$/.o/'`
-
-# Create the lock directory.
-# Note: use '[/\\:.-]' here to ensure that we don't use the same name
-# that we are using for the .o file. Also, base the name on the expected
-# object file name, since that is what matters with a parallel build.
-lockdir=`echo "$cofile" | sed -e 's|[/\\:.-]|_|g'`.d
-while true; do
- if mkdir "$lockdir" >/dev/null 2>&1; then
- break
- fi
- sleep 1
-done
-# FIXME: race condition here if user kills between mkdir and trap.
-trap "rmdir '$lockdir'; exit 1" 1 2 15
-
-# Run the compile.
-"$@"
-ret=$?
-
-if test -f "$cofile"; then
- test "$cofile" = "$ofile" || mv "$cofile" "$ofile"
-elif test -f "${cofile}bj"; then
- test "${cofile}bj" = "$ofile" || mv "${cofile}bj" "$ofile"
-fi
-
-rmdir "$lockdir"
-exit $ret
-
-# Local Variables:
-# mode: shell-script
-# sh-indentation: 2
-# eval: (add-hook 'before-save-hook 'time-stamp)
-# time-stamp-start: "scriptversion="
-# time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC0"
-# time-stamp-end: "; # UTC"
-# End:
diff --git a/config.guess b/config.guess
deleted file mode 100755
index 256083a..0000000
--- a/config.guess
+++ /dev/null
@@ -1,1476 +0,0 @@
-#! /bin/sh
-# Attempt to guess a canonical system name.
-# Copyright 1992-2018 Free Software Foundation, Inc.
-
-timestamp='2018-03-08'
-
-# This file is free software; you can redistribute it and/or modify it
-# under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, see <https://www.gnu.org/licenses/>.
-#
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that
-# program. This Exception is an additional permission under section 7
-# of the GNU General Public License, version 3 ("GPLv3").
-#
-# Originally written by Per Bothner; maintained since 2000 by Ben Elliston.
-#
-# You can get the latest version of this script from:
-# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
-#
-# Please send patches to <config-patches@gnu.org>.
-
-
-me=`echo "$0" | sed -e 's,.*/,,'`
-
-usage="\
-Usage: $0 [OPTION]
-
-Output the configuration name of the system \`$me' is run on.
-
-Options:
- -h, --help print this help, then exit
- -t, --time-stamp print date of last modification, then exit
- -v, --version print version number, then exit
-
-Report bugs and patches to <config-patches@gnu.org>."
-
-version="\
-GNU config.guess ($timestamp)
-
-Originally written by Per Bothner.
-Copyright 1992-2018 Free Software Foundation, Inc.
-
-This is free software; see the source for copying conditions. There is NO
-warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
-
-help="
-Try \`$me --help' for more information."
-
-# Parse command line
-while test $# -gt 0 ; do
- case $1 in
- --time-stamp | --time* | -t )
- echo "$timestamp" ; exit ;;
- --version | -v )
- echo "$version" ; exit ;;
- --help | --h* | -h )
- echo "$usage"; exit ;;
- -- ) # Stop option processing
- shift; break ;;
- - ) # Use stdin as input.
- break ;;
- -* )
- echo "$me: invalid option $1$help" >&2
- exit 1 ;;
- * )
- break ;;
- esac
-done
-
-if test $# != 0; then
- echo "$me: too many arguments$help" >&2
- exit 1
-fi
-
-trap 'exit 1' 1 2 15
-
-# CC_FOR_BUILD -- compiler used by this script. Note that the use of a
-# compiler to aid in system detection is discouraged as it requires
-# temporary files to be created and, as you can see below, it is a
-# headache to deal with in a portable fashion.
-
-# Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still
-# use `HOST_CC' if defined, but it is deprecated.
-
-# Portable tmp directory creation inspired by the Autoconf team.
-
-set_cc_for_build='
-trap "exitcode=\$?; (rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null) && exit \$exitcode" 0 ;
-trap "rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null; exit 1" 1 2 13 15 ;
-: ${TMPDIR=/tmp} ;
- { tmp=`(umask 077 && mktemp -d "$TMPDIR/cgXXXXXX") 2>/dev/null` && test -n "$tmp" && test -d "$tmp" ; } ||
- { test -n "$RANDOM" && tmp=$TMPDIR/cg$$-$RANDOM && (umask 077 && mkdir $tmp) ; } ||
- { tmp=$TMPDIR/cg-$$ && (umask 077 && mkdir $tmp) && echo "Warning: creating insecure temp directory" >&2 ; } ||
- { echo "$me: cannot create a temporary directory in $TMPDIR" >&2 ; exit 1 ; } ;
-dummy=$tmp/dummy ;
-tmpfiles="$dummy.c $dummy.o $dummy.rel $dummy" ;
-case $CC_FOR_BUILD,$HOST_CC,$CC in
- ,,) echo "int x;" > "$dummy.c" ;
- for c in cc gcc c89 c99 ; do
- if ($c -c -o "$dummy.o" "$dummy.c") >/dev/null 2>&1 ; then
- CC_FOR_BUILD="$c"; break ;
- fi ;
- done ;
- if test x"$CC_FOR_BUILD" = x ; then
- CC_FOR_BUILD=no_compiler_found ;
- fi
- ;;
- ,,*) CC_FOR_BUILD=$CC ;;
- ,*,*) CC_FOR_BUILD=$HOST_CC ;;
-esac ; set_cc_for_build= ;'
-
-# This is needed to find uname on a Pyramid OSx when run in the BSD universe.
-# (ghazi@noc.rutgers.edu 1994-08-24)
-if (test -f /.attbin/uname) >/dev/null 2>&1 ; then
- PATH=$PATH:/.attbin ; export PATH
-fi
-
-UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown
-UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
-UNAME_SYSTEM=`(uname -s) 2>/dev/null` || UNAME_SYSTEM=unknown
-UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
-
-case "$UNAME_SYSTEM" in
-Linux|GNU|GNU/*)
- # If the system lacks a compiler, then just pick glibc.
- # We could probably try harder.
- LIBC=gnu
-
- eval "$set_cc_for_build"
- cat <<-EOF > "$dummy.c"
- #include <features.h>
- #if defined(__UCLIBC__)
- LIBC=uclibc
- #elif defined(__dietlibc__)
- LIBC=dietlibc
- #else
- LIBC=gnu
- #endif
- EOF
- eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^LIBC' | sed 's, ,,g'`"
-
- # If ldd exists, use it to detect musl libc.
- if command -v ldd >/dev/null && \
- ldd --version 2>&1 | grep -q ^musl
- then
- LIBC=musl
- fi
- ;;
-esac
-
-# Note: order is significant - the case branches are not exclusive.
-
-case "$UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION" in
- *:NetBSD:*:*)
- # NetBSD (nbsd) targets should (where applicable) match one or
- # more of the tuples: *-*-netbsdelf*, *-*-netbsdaout*,
- # *-*-netbsdecoff* and *-*-netbsd*. For targets that recently
- # switched to ELF, *-*-netbsd* would select the old
- # object file format. This provides both forward
- # compatibility and a consistent mechanism for selecting the
- # object file format.
- #
- # Note: NetBSD doesn't particularly care about the vendor
- # portion of the name. We always set it to "unknown".
- sysctl="sysctl -n hw.machine_arch"
- UNAME_MACHINE_ARCH=`(uname -p 2>/dev/null || \
- "/sbin/$sysctl" 2>/dev/null || \
- "/usr/sbin/$sysctl" 2>/dev/null || \
- echo unknown)`
- case "$UNAME_MACHINE_ARCH" in
- armeb) machine=armeb-unknown ;;
- arm*) machine=arm-unknown ;;
- sh3el) machine=shl-unknown ;;
- sh3eb) machine=sh-unknown ;;
- sh5el) machine=sh5le-unknown ;;
- earmv*)
- arch=`echo "$UNAME_MACHINE_ARCH" | sed -e 's,^e\(armv[0-9]\).*$,\1,'`
- endian=`echo "$UNAME_MACHINE_ARCH" | sed -ne 's,^.*\(eb\)$,\1,p'`
- machine="${arch}${endian}"-unknown
- ;;
- *) machine="$UNAME_MACHINE_ARCH"-unknown ;;
- esac
- # The Operating System including object format, if it has switched
- # to ELF recently (or will in the future) and ABI.
- case "$UNAME_MACHINE_ARCH" in
- earm*)
- os=netbsdelf
- ;;
- arm*|i386|m68k|ns32k|sh3*|sparc|vax)
- eval "$set_cc_for_build"
- if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \
- | grep -q __ELF__
- then
- # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout).
- # Return netbsd for either. FIX?
- os=netbsd
- else
- os=netbsdelf
- fi
- ;;
- *)
- os=netbsd
- ;;
- esac
- # Determine ABI tags.
- case "$UNAME_MACHINE_ARCH" in
- earm*)
- expr='s/^earmv[0-9]/-eabi/;s/eb$//'
- abi=`echo "$UNAME_MACHINE_ARCH" | sed -e "$expr"`
- ;;
- esac
- # The OS release
- # Debian GNU/NetBSD machines have a different userland, and
- # thus, need a distinct triplet. However, they do not need
- # kernel version information, so it can be replaced with a
- # suitable tag, in the style of linux-gnu.
- case "$UNAME_VERSION" in
- Debian*)
- release='-gnu'
- ;;
- *)
- release=`echo "$UNAME_RELEASE" | sed -e 's/[-_].*//' | cut -d. -f1,2`
- ;;
- esac
- # Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM:
- # contains redundant information, the shorter form:
- # CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
- echo "$machine-${os}${release}${abi}"
- exit ;;
- *:Bitrig:*:*)
- UNAME_MACHINE_ARCH=`arch | sed 's/Bitrig.//'`
- echo "$UNAME_MACHINE_ARCH"-unknown-bitrig"$UNAME_RELEASE"
- exit ;;
- *:OpenBSD:*:*)
- UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'`
- echo "$UNAME_MACHINE_ARCH"-unknown-openbsd"$UNAME_RELEASE"
- exit ;;
- *:LibertyBSD:*:*)
- UNAME_MACHINE_ARCH=`arch | sed 's/^.*BSD\.//'`
- echo "$UNAME_MACHINE_ARCH"-unknown-libertybsd"$UNAME_RELEASE"
- exit ;;
- *:MidnightBSD:*:*)
- echo "$UNAME_MACHINE"-unknown-midnightbsd"$UNAME_RELEASE"
- exit ;;
- *:ekkoBSD:*:*)
- echo "$UNAME_MACHINE"-unknown-ekkobsd"$UNAME_RELEASE"
- exit ;;
- *:SolidBSD:*:*)
- echo "$UNAME_MACHINE"-unknown-solidbsd"$UNAME_RELEASE"
- exit ;;
- macppc:MirBSD:*:*)
- echo powerpc-unknown-mirbsd"$UNAME_RELEASE"
- exit ;;
- *:MirBSD:*:*)
- echo "$UNAME_MACHINE"-unknown-mirbsd"$UNAME_RELEASE"
- exit ;;
- *:Sortix:*:*)
- echo "$UNAME_MACHINE"-unknown-sortix
- exit ;;
- *:Redox:*:*)
- echo "$UNAME_MACHINE"-unknown-redox
- exit ;;
- mips:OSF1:*.*)
- echo mips-dec-osf1
- exit ;;
- alpha:OSF1:*:*)
- case $UNAME_RELEASE in
- *4.0)
- UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'`
- ;;
- *5.*)
- UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'`
- ;;
- esac
- # According to Compaq, /usr/sbin/psrinfo has been available on
- # OSF/1 and Tru64 systems produced since 1995. I hope that
- # covers most systems running today. This code pipes the CPU
- # types through head -n 1, so we only detect the type of CPU 0.
- ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^ The alpha \(.*\) processor.*$/\1/p' | head -n 1`
- case "$ALPHA_CPU_TYPE" in
- "EV4 (21064)")
- UNAME_MACHINE=alpha ;;
- "EV4.5 (21064)")
- UNAME_MACHINE=alpha ;;
- "LCA4 (21066/21068)")
- UNAME_MACHINE=alpha ;;
- "EV5 (21164)")
- UNAME_MACHINE=alphaev5 ;;
- "EV5.6 (21164A)")
- UNAME_MACHINE=alphaev56 ;;
- "EV5.6 (21164PC)")
- UNAME_MACHINE=alphapca56 ;;
- "EV5.7 (21164PC)")
- UNAME_MACHINE=alphapca57 ;;
- "EV6 (21264)")
- UNAME_MACHINE=alphaev6 ;;
- "EV6.7 (21264A)")
- UNAME_MACHINE=alphaev67 ;;
- "EV6.8CB (21264C)")
- UNAME_MACHINE=alphaev68 ;;
- "EV6.8AL (21264B)")
- UNAME_MACHINE=alphaev68 ;;
- "EV6.8CX (21264D)")
- UNAME_MACHINE=alphaev68 ;;
- "EV6.9A (21264/EV69A)")
- UNAME_MACHINE=alphaev69 ;;
- "EV7 (21364)")
- UNAME_MACHINE=alphaev7 ;;
- "EV7.9 (21364A)")
- UNAME_MACHINE=alphaev79 ;;
- esac
- # A Pn.n version is a patched version.
- # A Vn.n version is a released version.
- # A Tn.n version is a released field test version.
- # A Xn.n version is an unreleased experimental baselevel.
- # 1.2 uses "1.2" for uname -r.
- echo "$UNAME_MACHINE"-dec-osf"`echo "$UNAME_RELEASE" | sed -e 's/^[PVTX]//' | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz`"
- # Reset EXIT trap before exiting to avoid spurious non-zero exit code.
- exitcode=$?
- trap '' 0
- exit $exitcode ;;
- Amiga*:UNIX_System_V:4.0:*)
- echo m68k-unknown-sysv4
- exit ;;
- *:[Aa]miga[Oo][Ss]:*:*)
- echo "$UNAME_MACHINE"-unknown-amigaos
- exit ;;
- *:[Mm]orph[Oo][Ss]:*:*)
- echo "$UNAME_MACHINE"-unknown-morphos
- exit ;;
- *:OS/390:*:*)
- echo i370-ibm-openedition
- exit ;;
- *:z/VM:*:*)
- echo s390-ibm-zvmoe
- exit ;;
- *:OS400:*:*)
- echo powerpc-ibm-os400
- exit ;;
- arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
- echo arm-acorn-riscix"$UNAME_RELEASE"
- exit ;;
- arm*:riscos:*:*|arm*:RISCOS:*:*)
- echo arm-unknown-riscos
- exit ;;
- SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*)
- echo hppa1.1-hitachi-hiuxmpp
- exit ;;
- Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*)
- # akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE.
- if test "`(/bin/universe) 2>/dev/null`" = att ; then
- echo pyramid-pyramid-sysv3
- else
- echo pyramid-pyramid-bsd
- fi
- exit ;;
- NILE*:*:*:dcosx)
- echo pyramid-pyramid-svr4
- exit ;;
- DRS?6000:unix:4.0:6*)
- echo sparc-icl-nx6
- exit ;;
- DRS?6000:UNIX_SV:4.2*:7* | DRS?6000:isis:4.2*:7*)
- case `/usr/bin/uname -p` in
- sparc) echo sparc-icl-nx7; exit ;;
- esac ;;
- s390x:SunOS:*:*)
- echo "$UNAME_MACHINE"-ibm-solaris2"`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`"
- exit ;;
- sun4H:SunOS:5.*:*)
- echo sparc-hal-solaris2"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`"
- exit ;;
- sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*)
- echo sparc-sun-solaris2"`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`"
- exit ;;
- i86pc:AuroraUX:5.*:* | i86xen:AuroraUX:5.*:*)
- echo i386-pc-auroraux"$UNAME_RELEASE"
- exit ;;
- i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*)
- eval "$set_cc_for_build"
- SUN_ARCH=i386
- # If there is a compiler, see if it is configured for 64-bit objects.
- # Note that the Sun cc does not turn __LP64__ into 1 like gcc does.
- # This test works for both compilers.
- if [ "$CC_FOR_BUILD" != no_compiler_found ]; then
- if (echo '#ifdef __amd64'; echo IS_64BIT_ARCH; echo '#endif') | \
- (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
- grep IS_64BIT_ARCH >/dev/null
- then
- SUN_ARCH=x86_64
- fi
- fi
- echo "$SUN_ARCH"-pc-solaris2"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`"
- exit ;;
- sun4*:SunOS:6*:*)
- # According to config.sub, this is the proper way to canonicalize
- # SunOS6. Hard to guess exactly what SunOS6 will be like, but
- # it's likely to be more like Solaris than SunOS4.
- echo sparc-sun-solaris3"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`"
- exit ;;
- sun4*:SunOS:*:*)
- case "`/usr/bin/arch -k`" in
- Series*|S4*)
- UNAME_RELEASE=`uname -v`
- ;;
- esac
- # Japanese Language versions have a version number like `4.1.3-JL'.
- echo sparc-sun-sunos"`echo "$UNAME_RELEASE"|sed -e 's/-/_/'`"
- exit ;;
- sun3*:SunOS:*:*)
- echo m68k-sun-sunos"$UNAME_RELEASE"
- exit ;;
- sun*:*:4.2BSD:*)
- UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null`
- test "x$UNAME_RELEASE" = x && UNAME_RELEASE=3
- case "`/bin/arch`" in
- sun3)
- echo m68k-sun-sunos"$UNAME_RELEASE"
- ;;
- sun4)
- echo sparc-sun-sunos"$UNAME_RELEASE"
- ;;
- esac
- exit ;;
- aushp:SunOS:*:*)
- echo sparc-auspex-sunos"$UNAME_RELEASE"
- exit ;;
- # The situation for MiNT is a little confusing. The machine name
- # can be virtually everything (everything which is not
- # "atarist" or "atariste" at least should have a processor
- # > m68000). The system name ranges from "MiNT" over "FreeMiNT"
- # to the lowercase version "mint" (or "freemint"). Finally
- # the system name "TOS" denotes a system which is actually not
- # MiNT. But MiNT is downward compatible to TOS, so this should
- # be no problem.
- atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*)
- echo m68k-atari-mint"$UNAME_RELEASE"
- exit ;;
- atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*)
- echo m68k-atari-mint"$UNAME_RELEASE"
- exit ;;
- *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*)
- echo m68k-atari-mint"$UNAME_RELEASE"
- exit ;;
- milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*)
- echo m68k-milan-mint"$UNAME_RELEASE"
- exit ;;
- hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*)
- echo m68k-hades-mint"$UNAME_RELEASE"
- exit ;;
- *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*)
- echo m68k-unknown-mint"$UNAME_RELEASE"
- exit ;;
- m68k:machten:*:*)
- echo m68k-apple-machten"$UNAME_RELEASE"
- exit ;;
- powerpc:machten:*:*)
- echo powerpc-apple-machten"$UNAME_RELEASE"
- exit ;;
- RISC*:Mach:*:*)
- echo mips-dec-mach_bsd4.3
- exit ;;
- RISC*:ULTRIX:*:*)
- echo mips-dec-ultrix"$UNAME_RELEASE"
- exit ;;
- VAX*:ULTRIX*:*:*)
- echo vax-dec-ultrix"$UNAME_RELEASE"
- exit ;;
- 2020:CLIX:*:* | 2430:CLIX:*:*)
- echo clipper-intergraph-clix"$UNAME_RELEASE"
- exit ;;
- mips:*:*:UMIPS | mips:*:*:RISCos)
- eval "$set_cc_for_build"
- sed 's/^ //' << EOF > "$dummy.c"
-#ifdef __cplusplus
-#include <stdio.h> /* for printf() prototype */
- int main (int argc, char *argv[]) {
-#else
- int main (argc, argv) int argc; char *argv[]; {
-#endif
- #if defined (host_mips) && defined (MIPSEB)
- #if defined (SYSTYPE_SYSV)
- printf ("mips-mips-riscos%ssysv\\n", argv[1]); exit (0);
- #endif
- #if defined (SYSTYPE_SVR4)
- printf ("mips-mips-riscos%ssvr4\\n", argv[1]); exit (0);
- #endif
- #if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD)
- printf ("mips-mips-riscos%sbsd\\n", argv[1]); exit (0);
- #endif
- #endif
- exit (-1);
- }
-EOF
- $CC_FOR_BUILD -o "$dummy" "$dummy.c" &&
- dummyarg=`echo "$UNAME_RELEASE" | sed -n 's/\([0-9]*\).*/\1/p'` &&
- SYSTEM_NAME=`"$dummy" "$dummyarg"` &&
- { echo "$SYSTEM_NAME"; exit; }
- echo mips-mips-riscos"$UNAME_RELEASE"
- exit ;;
- Motorola:PowerMAX_OS:*:*)
- echo powerpc-motorola-powermax
- exit ;;
- Motorola:*:4.3:PL8-*)
- echo powerpc-harris-powermax
- exit ;;
- Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*)
- echo powerpc-harris-powermax
- exit ;;
- Night_Hawk:Power_UNIX:*:*)
- echo powerpc-harris-powerunix
- exit ;;
- m88k:CX/UX:7*:*)
- echo m88k-harris-cxux7
- exit ;;
- m88k:*:4*:R4*)
- echo m88k-motorola-sysv4
- exit ;;
- m88k:*:3*:R3*)
- echo m88k-motorola-sysv3
- exit ;;
- AViiON:dgux:*:*)
- # DG/UX returns AViiON for all architectures
- UNAME_PROCESSOR=`/usr/bin/uname -p`
- if [ "$UNAME_PROCESSOR" = mc88100 ] || [ "$UNAME_PROCESSOR" = mc88110 ]
- then
- if [ "$TARGET_BINARY_INTERFACE"x = m88kdguxelfx ] || \
- [ "$TARGET_BINARY_INTERFACE"x = x ]
- then
- echo m88k-dg-dgux"$UNAME_RELEASE"
- else
- echo m88k-dg-dguxbcs"$UNAME_RELEASE"
- fi
- else
- echo i586-dg-dgux"$UNAME_RELEASE"
- fi
- exit ;;
- M88*:DolphinOS:*:*) # DolphinOS (SVR3)
- echo m88k-dolphin-sysv3
- exit ;;
- M88*:*:R3*:*)
- # Delta 88k system running SVR3
- echo m88k-motorola-sysv3
- exit ;;
- XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3)
- echo m88k-tektronix-sysv3
- exit ;;
- Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD)
- echo m68k-tektronix-bsd
- exit ;;
- *:IRIX*:*:*)
- echo mips-sgi-irix"`echo "$UNAME_RELEASE"|sed -e 's/-/_/g'`"
- exit ;;
- ????????:AIX?:[12].1:2) # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX.
- echo romp-ibm-aix # uname -m gives an 8 hex-code CPU id
- exit ;; # Note that: echo "'`uname -s`'" gives 'AIX '
- i*86:AIX:*:*)
- echo i386-ibm-aix
- exit ;;
- ia64:AIX:*:*)
- if [ -x /usr/bin/oslevel ] ; then
- IBM_REV=`/usr/bin/oslevel`
- else
- IBM_REV="$UNAME_VERSION.$UNAME_RELEASE"
- fi
- echo "$UNAME_MACHINE"-ibm-aix"$IBM_REV"
- exit ;;
- *:AIX:2:3)
- if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then
- eval "$set_cc_for_build"
- sed 's/^ //' << EOF > "$dummy.c"
- #include <sys/systemcfg.h>
-
- main()
- {
- if (!__power_pc())
- exit(1);
- puts("powerpc-ibm-aix3.2.5");
- exit(0);
- }
-EOF
- if $CC_FOR_BUILD -o "$dummy" "$dummy.c" && SYSTEM_NAME=`"$dummy"`
- then
- echo "$SYSTEM_NAME"
- else
- echo rs6000-ibm-aix3.2.5
- fi
- elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then
- echo rs6000-ibm-aix3.2.4
- else
- echo rs6000-ibm-aix3.2
- fi
- exit ;;
- *:AIX:*:[4567])
- IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'`
- if /usr/sbin/lsattr -El "$IBM_CPU_ID" | grep ' POWER' >/dev/null 2>&1; then
- IBM_ARCH=rs6000
- else
- IBM_ARCH=powerpc
- fi
- if [ -x /usr/bin/lslpp ] ; then
- IBM_REV=`/usr/bin/lslpp -Lqc bos.rte.libc |
- awk -F: '{ print $3 }' | sed s/[0-9]*$/0/`
- else
- IBM_REV="$UNAME_VERSION.$UNAME_RELEASE"
- fi
- echo "$IBM_ARCH"-ibm-aix"$IBM_REV"
- exit ;;
- *:AIX:*:*)
- echo rs6000-ibm-aix
- exit ;;
- ibmrt:4.4BSD:*|romp-ibm:4.4BSD:*)
- echo romp-ibm-bsd4.4
- exit ;;
- ibmrt:*BSD:*|romp-ibm:BSD:*) # covers RT/PC BSD and
- echo romp-ibm-bsd"$UNAME_RELEASE" # 4.3 with uname added to
- exit ;; # report: romp-ibm BSD 4.3
- *:BOSX:*:*)
- echo rs6000-bull-bosx
- exit ;;
- DPX/2?00:B.O.S.:*:*)
- echo m68k-bull-sysv3
- exit ;;
- 9000/[34]??:4.3bsd:1.*:*)
- echo m68k-hp-bsd
- exit ;;
- hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*)
- echo m68k-hp-bsd4.4
- exit ;;
- 9000/[34678]??:HP-UX:*:*)
- HPUX_REV=`echo "$UNAME_RELEASE"|sed -e 's/[^.]*.[0B]*//'`
- case "$UNAME_MACHINE" in
- 9000/31?) HP_ARCH=m68000 ;;
- 9000/[34]??) HP_ARCH=m68k ;;
- 9000/[678][0-9][0-9])
- if [ -x /usr/bin/getconf ]; then
- sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null`
- sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null`
- case "$sc_cpu_version" in
- 523) HP_ARCH=hppa1.0 ;; # CPU_PA_RISC1_0
- 528) HP_ARCH=hppa1.1 ;; # CPU_PA_RISC1_1
- 532) # CPU_PA_RISC2_0
- case "$sc_kernel_bits" in
- 32) HP_ARCH=hppa2.0n ;;
- 64) HP_ARCH=hppa2.0w ;;
- '') HP_ARCH=hppa2.0 ;; # HP-UX 10.20
- esac ;;
- esac
- fi
- if [ "$HP_ARCH" = "" ]; then
- eval "$set_cc_for_build"
- sed 's/^ //' << EOF > "$dummy.c"
-
- #define _HPUX_SOURCE
- #include <stdlib.h>
- #include <unistd.h>
-
- int main ()
- {
- #if defined(_SC_KERNEL_BITS)
- long bits = sysconf(_SC_KERNEL_BITS);
- #endif
- long cpu = sysconf (_SC_CPU_VERSION);
-
- switch (cpu)
- {
- case CPU_PA_RISC1_0: puts ("hppa1.0"); break;
- case CPU_PA_RISC1_1: puts ("hppa1.1"); break;
- case CPU_PA_RISC2_0:
- #if defined(_SC_KERNEL_BITS)
- switch (bits)
- {
- case 64: puts ("hppa2.0w"); break;
- case 32: puts ("hppa2.0n"); break;
- default: puts ("hppa2.0"); break;
- } break;
- #else /* !defined(_SC_KERNEL_BITS) */
- puts ("hppa2.0"); break;
- #endif
- default: puts ("hppa1.0"); break;
- }
- exit (0);
- }
-EOF
- (CCOPTS="" $CC_FOR_BUILD -o "$dummy" "$dummy.c" 2>/dev/null) && HP_ARCH=`"$dummy"`
- test -z "$HP_ARCH" && HP_ARCH=hppa
- fi ;;
- esac
- if [ "$HP_ARCH" = hppa2.0w ]
- then
- eval "$set_cc_for_build"
-
- # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating
- # 32-bit code. hppa64-hp-hpux* has the same kernel and a compiler
- # generating 64-bit code. GNU and HP use different nomenclature:
- #
- # $ CC_FOR_BUILD=cc ./config.guess
- # => hppa2.0w-hp-hpux11.23
- # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess
- # => hppa64-hp-hpux11.23
-
- if echo __LP64__ | (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) |
- grep -q __LP64__
- then
- HP_ARCH=hppa2.0w
- else
- HP_ARCH=hppa64
- fi
- fi
- echo "$HP_ARCH"-hp-hpux"$HPUX_REV"
- exit ;;
- ia64:HP-UX:*:*)
- HPUX_REV=`echo "$UNAME_RELEASE"|sed -e 's/[^.]*.[0B]*//'`
- echo ia64-hp-hpux"$HPUX_REV"
- exit ;;
- 3050*:HI-UX:*:*)
- eval "$set_cc_for_build"
- sed 's/^ //' << EOF > "$dummy.c"
- #include <unistd.h>
- int
- main ()
- {
- long cpu = sysconf (_SC_CPU_VERSION);
- /* The order matters, because CPU_IS_HP_MC68K erroneously returns
- true for CPU_PA_RISC1_0. CPU_IS_PA_RISC returns correct
- results, however. */
- if (CPU_IS_PA_RISC (cpu))
- {
- switch (cpu)
- {
- case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break;
- case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break;
- case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break;
- default: puts ("hppa-hitachi-hiuxwe2"); break;
- }
- }
- else if (CPU_IS_HP_MC68K (cpu))
- puts ("m68k-hitachi-hiuxwe2");
- else puts ("unknown-hitachi-hiuxwe2");
- exit (0);
- }
-EOF
- $CC_FOR_BUILD -o "$dummy" "$dummy.c" && SYSTEM_NAME=`"$dummy"` &&
- { echo "$SYSTEM_NAME"; exit; }
- echo unknown-hitachi-hiuxwe2
- exit ;;
- 9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:*)
- echo hppa1.1-hp-bsd
- exit ;;
- 9000/8??:4.3bsd:*:*)
- echo hppa1.0-hp-bsd
- exit ;;
- *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*)
- echo hppa1.0-hp-mpeix
- exit ;;
- hp7??:OSF1:*:* | hp8?[79]:OSF1:*:*)
- echo hppa1.1-hp-osf
- exit ;;
- hp8??:OSF1:*:*)
- echo hppa1.0-hp-osf
- exit ;;
- i*86:OSF1:*:*)
- if [ -x /usr/sbin/sysversion ] ; then
- echo "$UNAME_MACHINE"-unknown-osf1mk
- else
- echo "$UNAME_MACHINE"-unknown-osf1
- fi
- exit ;;
- parisc*:Lites*:*:*)
- echo hppa1.1-hp-lites
- exit ;;
- C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*)
- echo c1-convex-bsd
- exit ;;
- C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*)
- if getsysinfo -f scalar_acc
- then echo c32-convex-bsd
- else echo c2-convex-bsd
- fi
- exit ;;
- C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*)
- echo c34-convex-bsd
- exit ;;
- C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*)
- echo c38-convex-bsd
- exit ;;
- C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*)
- echo c4-convex-bsd
- exit ;;
- CRAY*Y-MP:*:*:*)
- echo ymp-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
- exit ;;
- CRAY*[A-Z]90:*:*:*)
- echo "$UNAME_MACHINE"-cray-unicos"$UNAME_RELEASE" \
- | sed -e 's/CRAY.*\([A-Z]90\)/\1/' \
- -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \
- -e 's/\.[^.]*$/.X/'
- exit ;;
- CRAY*TS:*:*:*)
- echo t90-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
- exit ;;
- CRAY*T3E:*:*:*)
- echo alphaev5-cray-unicosmk"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
- exit ;;
- CRAY*SV1:*:*:*)
- echo sv1-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
- exit ;;
- *:UNICOS/mp:*:*)
- echo craynv-cray-unicosmp"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
- exit ;;
- F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*)
- FUJITSU_PROC=`uname -m | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz`
- FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'`
- FUJITSU_REL=`echo "$UNAME_RELEASE" | sed -e 's/ /_/'`
- echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
- exit ;;
- 5000:UNIX_System_V:4.*:*)
- FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'`
- FUJITSU_REL=`echo "$UNAME_RELEASE" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/ /_/'`
- echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
- exit ;;
- i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*)
- echo "$UNAME_MACHINE"-pc-bsdi"$UNAME_RELEASE"
- exit ;;
- sparc*:BSD/OS:*:*)
- echo sparc-unknown-bsdi"$UNAME_RELEASE"
- exit ;;
- *:BSD/OS:*:*)
- echo "$UNAME_MACHINE"-unknown-bsdi"$UNAME_RELEASE"
- exit ;;
- *:FreeBSD:*:*)
- UNAME_PROCESSOR=`/usr/bin/uname -p`
- case "$UNAME_PROCESSOR" in
- amd64)
- UNAME_PROCESSOR=x86_64 ;;
- i386)
- UNAME_PROCESSOR=i586 ;;
- esac
- echo "$UNAME_PROCESSOR"-unknown-freebsd"`echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`"
- exit ;;
- i*:CYGWIN*:*)
- echo "$UNAME_MACHINE"-pc-cygwin
- exit ;;
- *:MINGW64*:*)
- echo "$UNAME_MACHINE"-pc-mingw64
- exit ;;
- *:MINGW*:*)
- echo "$UNAME_MACHINE"-pc-mingw32
- exit ;;
- *:MSYS*:*)
- echo "$UNAME_MACHINE"-pc-msys
- exit ;;
- i*:PW*:*)
- echo "$UNAME_MACHINE"-pc-pw32
- exit ;;
- *:Interix*:*)
- case "$UNAME_MACHINE" in
- x86)
- echo i586-pc-interix"$UNAME_RELEASE"
- exit ;;
- authenticamd | genuineintel | EM64T)
- echo x86_64-unknown-interix"$UNAME_RELEASE"
- exit ;;
- IA64)
- echo ia64-unknown-interix"$UNAME_RELEASE"
- exit ;;
- esac ;;
- i*:UWIN*:*)
- echo "$UNAME_MACHINE"-pc-uwin
- exit ;;
- amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*)
- echo x86_64-unknown-cygwin
- exit ;;
- prep*:SunOS:5.*:*)
- echo powerpcle-unknown-solaris2"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`"
- exit ;;
- *:GNU:*:*)
- # the GNU system
- echo "`echo "$UNAME_MACHINE"|sed -e 's,[-/].*$,,'`-unknown-$LIBC`echo "$UNAME_RELEASE"|sed -e 's,/.*$,,'`"
- exit ;;
- *:GNU/*:*:*)
- # other systems with GNU libc and userland
- echo "$UNAME_MACHINE-unknown-`echo "$UNAME_SYSTEM" | sed 's,^[^/]*/,,' | tr "[:upper:]" "[:lower:]"``echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`-$LIBC"
- exit ;;
- i*86:Minix:*:*)
- echo "$UNAME_MACHINE"-pc-minix
- exit ;;
- aarch64:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- aarch64_be:Linux:*:*)
- UNAME_MACHINE=aarch64_be
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- alpha:Linux:*:*)
- case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
- EV5) UNAME_MACHINE=alphaev5 ;;
- EV56) UNAME_MACHINE=alphaev56 ;;
- PCA56) UNAME_MACHINE=alphapca56 ;;
- PCA57) UNAME_MACHINE=alphapca56 ;;
- EV6) UNAME_MACHINE=alphaev6 ;;
- EV67) UNAME_MACHINE=alphaev67 ;;
- EV68*) UNAME_MACHINE=alphaev68 ;;
- esac
- objdump --private-headers /bin/sh | grep -q ld.so.1
- if test "$?" = 0 ; then LIBC=gnulibc1 ; fi
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- arc:Linux:*:* | arceb:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- arm*:Linux:*:*)
- eval "$set_cc_for_build"
- if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \
- | grep -q __ARM_EABI__
- then
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- else
- if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \
- | grep -q __ARM_PCS_VFP
- then
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"eabi
- else
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"eabihf
- fi
- fi
- exit ;;
- avr32*:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- cris:Linux:*:*)
- echo "$UNAME_MACHINE"-axis-linux-"$LIBC"
- exit ;;
- crisv32:Linux:*:*)
- echo "$UNAME_MACHINE"-axis-linux-"$LIBC"
- exit ;;
- e2k:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- frv:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- hexagon:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- i*86:Linux:*:*)
- echo "$UNAME_MACHINE"-pc-linux-"$LIBC"
- exit ;;
- ia64:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- k1om:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- m32r*:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- m68*:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- mips:Linux:*:* | mips64:Linux:*:*)
- eval "$set_cc_for_build"
- sed 's/^ //' << EOF > "$dummy.c"
- #undef CPU
- #undef ${UNAME_MACHINE}
- #undef ${UNAME_MACHINE}el
- #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
- CPU=${UNAME_MACHINE}el
- #else
- #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
- CPU=${UNAME_MACHINE}
- #else
- CPU=
- #endif
- #endif
-EOF
- eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^CPU'`"
- test "x$CPU" != x && { echo "$CPU-unknown-linux-$LIBC"; exit; }
- ;;
- mips64el:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- openrisc*:Linux:*:*)
- echo or1k-unknown-linux-"$LIBC"
- exit ;;
- or32:Linux:*:* | or1k*:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- padre:Linux:*:*)
- echo sparc-unknown-linux-"$LIBC"
- exit ;;
- parisc64:Linux:*:* | hppa64:Linux:*:*)
- echo hppa64-unknown-linux-"$LIBC"
- exit ;;
- parisc:Linux:*:* | hppa:Linux:*:*)
- # Look for CPU level
- case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
- PA7*) echo hppa1.1-unknown-linux-"$LIBC" ;;
- PA8*) echo hppa2.0-unknown-linux-"$LIBC" ;;
- *) echo hppa-unknown-linux-"$LIBC" ;;
- esac
- exit ;;
- ppc64:Linux:*:*)
- echo powerpc64-unknown-linux-"$LIBC"
- exit ;;
- ppc:Linux:*:*)
- echo powerpc-unknown-linux-"$LIBC"
- exit ;;
- ppc64le:Linux:*:*)
- echo powerpc64le-unknown-linux-"$LIBC"
- exit ;;
- ppcle:Linux:*:*)
- echo powerpcle-unknown-linux-"$LIBC"
- exit ;;
- riscv32:Linux:*:* | riscv64:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- s390:Linux:*:* | s390x:Linux:*:*)
- echo "$UNAME_MACHINE"-ibm-linux-"$LIBC"
- exit ;;
- sh64*:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- sh*:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- sparc:Linux:*:* | sparc64:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
- tile*:Linux:*:*)
- echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
- exit ;;
