diff options
| author | Glenn Randers-Pehrson <glennrp at users.sourceforge.net> | 2014-10-22 19:28:06 -0500 |
|---|---|---|
| committer | Glenn Randers-Pehrson <glennrp at users.sourceforge.net> | 2014-10-22 19:33:27 -0500 |
| commit | eed640dbe8f769e69a87ec354568529be993309e (patch) | |
| tree | f7c5bd95a47760ffb89860028a1a052d858339a3 | |
| parent | d55c4f32fc2e37de1c275d42a6ff37f783b217d1 (diff) | |
| download | libpng-eed640dbe8f769e69a87ec354568529be993309e.tar.gz | |
[master] Imported from libpng-1.6.14.tar
45 files changed, 430 insertions, 410 deletions
@@ -1,4 +1,4 @@ -Libpng 1.6.13 - August 21, 2014 +Libpng 1.6.14 - October 23, 2014 This is a public release of libpng, intended for use in production codes. @@ -7,48 +7,52 @@ Files available for download: Source files with LF line endings (for Unix/Linux) and with a "configure" script - libpng-1.6.13.tar.xz (LZMA-compressed, recommended) - libpng-1.6.13.tar.gz + libpng-1.6.14.tar.xz (LZMA-compressed, recommended) + libpng-1.6.14.tar.gz Source files with CRLF line endings (for Windows), without the "configure" script - lpng1613.7z (LZMA-compressed, recommended) - lpng1613.zip + lpng1614.7z (LZMA-compressed, recommended) + lpng1614.zip Other information: - libpng-1.6.13-README.txt - libpng-1.6.13-LICENSE.txt - libpng-1.6.13-*.asc (armored detached GPG signatures) - -Changes since the last public release (1.6.12): - - 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. - 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. - 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). - 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. - Made "ccopts" agree with "CFLAGS" in scripts/makefile.hp* and makefile.*sunu + libpng-1.6.14-README.txt + libpng-1.6.14-LICENSE.txt + libpng-1.6.14-*.asc (armored detached GPG signatures) + +Changes since the last public release (1.6.13): + 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) + 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. + Define FE_DIVBYZERO, FE_INVALID, and FE_OVERFLOW in pngvalid.c if not + already defined (bug report by "zootus at users.sourceforge.net"). + Fixed incorrect handling of the iTXt compression flag in pngrutil.c + (bug report by Shunsaku Hirata). Bug was introduced in libpng-1.6.0. + Added "option READ_iCCP enables READ_COMPRESSED_TEXT" to pnglibconf.dfa + 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. + Removed "option WRITE_COMPRESSED_TEXT enables WRITE_TEXT" from pnglibconf.dfa + Only mark text chunks as written after successfully writing them. + Fixed some typos in comments. + 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. Send comments/corrections/commendations to png-mng-implement at lists.sf.net (subscription required; visit @@ -4430,7 +4430,7 @@ Version 1.6.1beta05 [March 1, 2013] Version 1.6.1beta06 [March 4, 2013] Better documentation of unknown handling API interactions. Corrected Android builds and corrected libpng.vers with symbol - prefixing This adds an API to set optimization options externally, + prefixing. This adds an API to set optimization options externally, providing an alternative and general solution for the non-portable run-time tests used by the ARM Neon code. It also makes those tests compile and link on Android. @@ -4978,6 +4978,61 @@ Version 1.6.13rc01 [August 14, 2014] 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. + Send comments/corrections/commendations to png-mng-implement at lists.sf.net (subscription required; visit https://lists.sourceforge.net/lists/listinfo/png-mng-implement diff --git a/CMakeLists.txt b/CMakeLists.txt index e0353a057..576467be6 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -16,7 +16,7 @@ enable_testing() set(PNGLIB_MAJOR 1) set(PNGLIB_MINOR 6) -set(PNGLIB_RELEASE 13) +set(PNGLIB_RELEASE 14) set(PNGLIB_NAME libpng${PNGLIB_MAJOR}${PNGLIB_MINOR}) set(PNGLIB_VERSION ${PNGLIB_MAJOR}.${PNGLIB_MINOR}.${PNGLIB_RELEASE}) @@ -253,7 +253,7 @@ endif(NOT WIN32 OR CYGWIN OR MINGW) # SET UP LINKS if(PNG_SHARED) set_target_properties(${PNG_LIB_NAME} PROPERTIES -# VERSION 16.${PNGLIB_RELEASE}.1.6.13 +# VERSION 16.${PNGLIB_RELEASE}.1.6.14 VERSION 16.${PNGLIB_RELEASE}.0 SOVERSION 16 CLEAN_DIRECT_OUTPUT 1) @@ -333,7 +333,7 @@ built. pngconf.h no longer includes pngusr.h; therefore, pngusr.h is ignored after the build of pnglibconf.h and it is never included in an application build. -The rarely used alternative of adding a list of feature macros to the +The formerly used alternative of adding a list of feature macros to the CPPFLAGS setting in the build also still works; however, the macros will be copied to pnglibconf.h and this may produce macro redefinition warnings when the individual C files are compiled. @@ -349,12 +349,19 @@ functioning awk called 'nawk'. Configuration options are now documented in scripts/pnglibconf.dfa. This file also includes dependency information that ensures a configuration is -consistent; that is, if a feature is switched off dependent features are -also removed. As a recommended alternative to using feature macros in +consistent; that is, if a feature is switched off, dependent features are +also switched off. As a recommended alternative to using feature macros in pngusr.h a system builder may also define equivalent options in pngusr.dfa (or, indeed, any file) and add that to the configuration by setting DFA_XTRA to the file name. The makefiles in contrib/pngminim illustrate -how to do this, and illustrate a case where pngusr.h is still required. +how to do this, and also illustrate a case where pngusr.h is still required. + +After you have built libpng, the definitions that were recorded in +pnglibconf.h are available to your application (pnglibconf.h is included +in png.h and gets installed alongside png.h and pngconf.h in your +$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. XV. Configuring libpng for multiprocessing @@ -10,7 +10,7 @@ this sentence. This code is released under the libpng license. -libpng versions 1.2.6, August 15, 2004, through 1.6.13, August 21, 2014, are +libpng versions 1.2.6, August 15, 2004, through 1.6.14, October 23, 2014, are Copyright (c) 2004, 2006-2014 Glenn Randers-Pehrson, and are distributed according to the same disclaimer and license as libpng-1.2.5 with the following individual added to the list of Contributing Authors @@ -108,4 +108,4 @@ certification mark of the Open Source Initiative. Glenn Randers-Pehrson glennrp at users.sourceforge.net -August 21, 2014 +October 23, 2014 @@ -1,4 +1,4 @@ -README for libpng version 1.6.13 - August 21, 2014 (shared library 16.0) +README for libpng version 1.6.14 - October 23, 2014 (shared library 16.0) See the note about version numbers near the top of png.h See INSTALL for instructions on how to install libpng. @@ -23,18 +23,25 @@ earlier versions if you are using a shared library. The type of the png_uint_32, which will affect shared-library applications that use this function. -To avoid problems with changes to the internals of png_info_struct, +To avoid problems with changes to the internals of png info_struct, new APIs have been made available in 0.95 to avoid direct application access to info_ptr. These functions are the png_set_<chunk> and png_get_<chunk> functions. These functions should be used when accessing/storing the info_struct data, rather than manipulating it directly, to avoid such problems in the future. -It is important to note that the APIs do not make current programs +It is important to note that the APIs did not make current programs that access the info struct directly incompatible with the new -library. However, it is strongly suggested that new programs use -the new APIs (as shown in example.c and pngtest.c), and older programs -be converted to the new format, to facilitate upgrades in the future. +library, through libpng-1.2.x. In libpng-1.4.x, which was meant to +be a transitional release, members of the png_struct and the +info_struct can still be accessed, but the compiler will issue a +warning about deprecated usage. Since libpng-1.5.0, direct access +to these structs is not allowed, and the definitions of the structs +reside in private pngstruct.h and pnginfo.h header files that are not +accessible to applications. It is strongly suggested that new +programs use the new APIs (as shown in example.c and pngtest.c), and +older programs be converted to the new format, to facilitate upgrades +in the future. **** Additions since 0.90 include the ability to compile libpng as a @@ -183,7 +190,7 @@ Files in this distribution: pngminus => Simple pnm2png and png2pnm programs pngsuite => Test images tools => Various tools - visupng => Contains a MSVC workspace for VisualPng + visupng => Contains a MSVC workspace for VisualPng projects => Contains project files and workspaces for building a DLL owatcom => Contains a WATCOM project for building libpng diff --git a/configure.ac b/configure.ac index 6fafa0210..d60a5ab65 100644 --- a/configure.ac +++ b/configure.ac @@ -18,7 +18,7 @@ AC_PREREQ([2.68]) dnl Version number stuff here: -AC_INIT([libpng],[1.6.13],[png-mng-implement@lists.sourceforge.net]) +AC_INIT([libpng],[1.6.14],[png-mng-implement@lists.sourceforge.net]) AC_CONFIG_MACRO_DIR([scripts]) # libpng does not follow GNU file name conventions (hence 'foreign') @@ -39,10 +39,10 @@ dnl automake, so the following is not necessary (and is not defined anyway): dnl AM_PREREQ([1.11.2]) dnl stop configure from automagically running automake -PNGLIB_VERSION=1.6.13 +PNGLIB_VERSION=1.6.14 PNGLIB_MAJOR=1 PNGLIB_MINOR=6 -PNGLIB_RELEASE=13 +PNGLIB_RELEASE=14 dnl End of version number stuff diff --git a/contrib/gregbook/rpng2-x.c b/contrib/gregbook/rpng2-x.c index a146ef417..cf371014c 100644 --- a/contrib/gregbook/rpng2-x.c +++ b/contrib/gregbook/rpng2-x.c @@ -103,9 +103,6 @@ #define RESNAME "rpng2" /* our X resource application name */ #define RESCLASS "Rpng" /* our X resource class name */ -/* This is temporary until the code is rewritten to use nanosleep(). */ -#define usleep(x) sleep(((x)+499999)/1000000) - #include <stdio.h> #include <stdlib.h> #include <ctype.h> @@ -118,6 +115,18 @@ #include <X11/Xos.h> #include <X11/keysym.h> /* defines XK_* macros */ +#if _POSIX_C_SOURCE >= 199309L /* have nanosleep() */ +# undef usleep +# define usleep(usec) { \ + struct timespec ts; \ + ts.tv_nsec = (usec) * 1000; \ + nanosleep(&ts, NULL); } +# endif + +#ifndef usleep /* have neither nanosleep() nor usleep() */ +# define usleep(x) sleep(((x)+499999)/1000000) +#endif + #ifdef VMS # include <unistd.h> #endif diff --git a/contrib/libtests/fakepng.c b/contrib/libtests/fakepng.c index ba360d15a..fcc111286 100644 --- a/contrib/libtests/fakepng.c +++ b/contrib/libtests/fakepng.c @@ -52,6 +52,6 @@ main(void) fwrite(signature, sizeof signature, 1, stdout); put_chunk(IHDR, sizeof IHDR); - for(;;) + for (;;) put_chunk(unknown, sizeof unknown); } diff --git a/contrib/libtests/pngvalid.c b/contrib/libtests/pngvalid.c index e8401c93f..ca6f85188 100644 --- a/contrib/libtests/pngvalid.c +++ b/contrib/libtests/pngvalid.c @@ -1,7 +1,7 @@ /* pngvalid.c - validate libpng by constructing then reading png files. * - * Last changed in libpng 1.6.10 [March 6, 2014] + * Last changed in libpng 1.6.14 [October 23, 2014] * Copyright (c) 2014 Glenn Randers-Pehrson * Written by John Cunningham Bowler * @@ -34,6 +34,16 @@ # include <fenv.h> #endif +#ifndef FE_DIVBYZERO +# define FE_DIVBYZERO 0 +#endif +#ifndef FE_INVALID +# define FE_INVALID 0 +#endif +#ifndef FE_OVERFLOW +# define FE_OVERFLOW 0 +#endif + /* Define the following to use this test against your installed libpng, rather * than the one being built here: */ @@ -686,7 +696,7 @@ static png_uint_32 random_32(void) { - for(;;) + for (;;) { png_byte mark[4]; png_uint_32 result; diff --git a/contrib/tools/pngfix.c b/contrib/tools/pngfix.c index 068daf103..28d47979e 100644 --- a/contrib/tools/pngfix.c +++ b/contrib/tools/pngfix.c @@ -2,7 +2,7 @@ * * Copyright (c) 2014 John Cunningham Bowler * - * Last changed in libpng 1.6.10 [March 6, 2014] + * Last changed in libpng 1.6.14 [October 23, 2014] * * This code is released under the libpng license. * For conditions of distribution and use, see the disclaimer @@ -49,6 +49,9 @@ # error "pngfix will not work with libpng prior to 1.6.3" #endif +#ifdef PNG_SETJMP_SUPPORTED +#include <setjmp.h> + #if defined(PNG_READ_SUPPORTED) && defined(PNG_EASY_ACCESS_SUPPORTED) /* zlib.h defines the structure z_stream, an instance of which is included * in this structure and is required for decompressing the LZ compressed @@ -4034,3 +4037,12 @@ main(void) return 77; } #endif /* PNG_READ_SUPPORTED && PNG_EASY_ACCESS_SUPPORTED */ +#else /* No setjmp support */ +int +main(void) +{ + fprintf(stderr, "pngfix does not work without setjmp support\n"); + return 77; +} +#endif /* PNG_SETJMP_SUPPORTED */ + @@ -188,13 +188,13 @@ int main(int argc, const char **argv) * * Don't repeatedly convert between the 8-bit and 16-bit forms. There is * significant data loss when 16-bit data is converted to the 8-bit encoding and - * the current libpng implementation of convertion to 16-bit is also + * the current libpng implementation of conversion to 16-bit is also * significantly lossy. The latter will be fixed in the future, but the former * is unavoidable - the 8-bit format just doesn't have enough resolution. */ /* If your program needs more information from the PNG data it reads, or if you - * need to do more complex transformations, or minimise transformations, on the + * need to do more complex transformations, or minimize transformations, on the * data you read, then you must use one of the several lower level libpng * interfaces. * @@ -932,7 +932,7 @@ void write_png(char *file_name /* , ... other image information ... */) */ /* Once we write out the header, the compression type on the text - * chunks gets changed to PNG_TEXT_COMPRESSION_NONE_WR or + * chunk gets changed to PNG_TEXT_COMPRESSION_NONE_WR or * PNG_TEXT_COMPRESSION_zTXt_WR, so it doesn't get written out again * at the end. */ diff --git a/libpng-manual.txt b/libpng-manual.txt index a394cc9c6..6b77c2ca2 100644 --- a/libpng-manual.txt +++ b/libpng-manual.txt @@ -1,6 +1,6 @@ libpng-manual.txt - A description on how to use and modify libpng - libpng version 1.6.13 - August 21, 2014 + libpng version 1.6.14 - October 23, 2014 Updated and distributed by Glenn Randers-Pehrson <glennrp at users.sourceforge.net> Copyright (c) 1998-2014 Glenn Randers-Pehrson @@ -11,7 +11,7 @@ libpng-manual.txt - A description on how to use and modify libpng Based on: - libpng versions 0.97, January 1998, through 1.6.13 - August 21, 2014 + libpng versions 0.97, January 1998, through 1.6.14 - October 23, 2014 Updated and distributed by Glenn Randers-Pehrson Copyright (c) 1998-2014 Glenn Randers-Pehrson @@ -3261,7 +3261,7 @@ tEXt chunk use RFC 1123 format dates (e.g. "22 May 1997 18:07:10 GMT"), although this isn't a requirement. Unlike the tIME chunk, the "Creation Time" tEXt chunk is not expected to be automatically changed by the software. To facilitate the use of RFC 1123 dates, a function -png_convert_to_rfc1123_buffer(png_ptr, buffer, png_timep) is provided to +png_convert_to_rfc1123_buffer(buffer, png_timep) is provided to convert from PNG time to an RFC 1123 format string. The caller must provide a writeable buffer of at least 29 bytes. @@ -5223,12 +5223,15 @@ We mark all non-exported functions with "/* PRIVATE */"": } The prototypes for non-exported functions (except for those in -pngtest) appear in -pngpriv.h -above the comment that says +pngtest) appear in pngpriv.h above the comment that says /* Maintainer: Put new private prototypes here ^ */ +To avoid polluting the global namespace, the names of all exported +functions and variables begin with "png_", and all publicly visible C +preprocessor macros begin with "PNG". We request that applications that +use libpng *not* begin any of their own symbols with either of these strings. + We put a space after the "sizeof" operator and we omit the optional parentheses around its argument when the argument is an expression, not a type name, and we always enclose the @@ -5240,10 +5243,8 @@ sizeof operator, with its argument, in parentheses: Prior to libpng-1.6.0 we used a "png_sizeof()" macro, formatted as though it were a function. -To avoid polluting the global namespace, the names of all exported -functions and variables begin with "png_", and all publicly visible C -preprocessor macros begin with "PNG". We request that applications that -use libpng *not* begin any of their own symbols with either of these strings. +Control keywords if, for, while, and switch are always followed by a space +to distinguish them from function calls, which have no trailing space. We put a space after each comma and after each semicolon in "for" statements, and we put spaces before and after each @@ -5276,13 +5277,13 @@ Other rules can be inferred by inspecting the libpng source. XVI. Y2K Compliance in libpng -August 21, 2014 +October 23, 2014 Since the PNG Development group is an ad-hoc body, we can't make an official declaration. This is your unofficial assurance that libpng from version 0.71 and -upward through 1.6.13 are Y2K compliant. It is my belief that earlier +upward through 1.6.14 are Y2K compliant. It is my belief that earlier versions were also Y2K compliant. Libpng only has two year fields. One is a 2-byte unsigned integer @@ -5298,8 +5299,9 @@ in libpng-1.6.x and will be removed from libpng-1.7.0. There are seven time-related functions: - png_convert_to_rfc_1123() in png.c - (formerly png_convert_to_rfc_1152() in error) + png_convert_to_rfc_1123_buffer() in png.c + (formerly png_convert_to_rfc_1152() in error, and + also formerly png_convert_to_rfc_1123()) png_convert_from_struct_tm() in pngwrite.c, called in pngwrite.c png_convert_from_time_t() in pngwrite.c @@ -1,6 +1,6 @@ -.TH LIBPNG 3 "August 21, 2014" +.TH LIBPNG 3 "October 23, 2014" .SH NAME -libpng \- Portable Network Graphics (PNG) Reference Library 1.6.13 +libpng \- Portable Network Graphics (PNG) Reference Library 1.6.14 .SH SYNOPSIS \fB #include <png.h>\fP @@ -504,7 +504,7 @@ Following is a copy of the libpng-manual.txt file that accompanies libpng. .SH LIBPNG.TXT libpng-manual.txt - A description on how to use and modify libpng - libpng version 1.6.13 - August 21, 2014 + libpng version 1.6.14 - October 23, 2014 Updated and distributed by Glenn Randers-Pehrson <glennrp at users.sourceforge.net> Copyright (c) 1998-2014 Glenn Randers-Pehrson @@ -515,7 +515,7 @@ libpng-manual.txt - A description on how to use and modify libpng Based on: - libpng versions 0.97, January 1998, through 1.6.13 - August 21, 2014 + libpng versions 0.97, January 1998, through 1.6.14 - October 23, 2014 Updated and distributed by Glenn Randers-Pehrson Copyright (c) 1998-2014 Glenn Randers-Pehrson @@ -3765,7 +3765,7 @@ tEXt chunk use RFC 1123 format dates (e.g. "22 May 1997 18:07:10 GMT"), although this isn't a requirement. Unlike the tIME chunk, the "Creation Time" tEXt chunk is not expected to be automatically changed by the software. To facilitate the use of RFC 1123 dates, a function -png_convert_to_rfc1123_buffer(png_ptr, buffer, png_timep) is provided to +png_convert_to_rfc1123_buffer(buffer, png_timep) is provided to convert from PNG time to an RFC 1123 format string. The caller must provide a writeable buffer of at least 29 bytes. @@ -5727,12 +5727,15 @@ We mark all non-exported functions with "/* PRIVATE */"": } The prototypes for non-exported functions (except for those in -pngtest) appear in -pngpriv.h -above the comment that says +pngtest) appear in pngpriv.h above the comment that says /* Maintainer: Put new private prototypes here ^ */ +To avoid polluting the global namespace, the names of all exported +functions and variables begin with "png_", and all publicly visible C +preprocessor macros begin with "PNG". We request that applications that +use libpng *not* begin any of their own symbols with either of these strings. + We put a space after the "sizeof" operator and we omit the optional parentheses around its argument when the argument is an expression, not a type name, and we always enclose the @@ -5744,10 +5747,8 @@ sizeof operator, with its argument, in parentheses: Prior to libpng-1.6.0 we used a "png_sizeof()" macro, formatted as though it were a function. -To avoid polluting the global namespace, the names of all exported -functions and variables begin with "png_", and all publicly visible C -preprocessor macros begin with "PNG". We request that applications that -use libpng *not* begin any of their own symbols with either of these strings. +Control keywords if, for, while, and switch are always followed by a space +to distinguish them from function calls, which have no trailing space. We put a space after each comma and after each semicolon in "for" statements, and we put spaces before and after each @@ -5780,13 +5781,13 @@ Other rules can be inferred by inspecting the libpng source. .SH XVI. Y2K Compliance in libpng -August 21, 2014 +October 23, 2014 Since the PNG Development group is an ad-hoc body, we can't make an official declaration. This is your unofficial assurance that libpng from version 0.71 and -upward through 1.6.13 are Y2K compliant. It is my belief that earlier +upward through 1.6.14 are Y2K compliant. It is my belief that earlier versions were also Y2K compliant. Libpng only has two year fields. One is a 2-byte unsigned integer @@ -5802,8 +5803,9 @@ in libpng-1.6.x and will be removed from libpng-1.7.0. There are seven time-related functions: - png_convert_to_rfc_1123() in png.c - (formerly png_convert_to_rfc_1152() in error) + png_convert_to_rfc_1123_buffer() in png.c + (formerly png_convert_to_rfc_1152() in error, and + also formerly png_convert_to_rfc_1123()) png_convert_from_struct_tm() in pngwrite.c, called in pngwrite.c png_convert_from_time_t() in pngwrite.c @@ -6028,6 +6030,9 @@ the first widely used release: 1.6.13beta01-04 16 10613 16.so.16.13[.0] 1.6.13rc01-02 16 10613 16.so.16.13[.0] 1.6.13 16 10613 16.so.16.13[.0] + 1.6.14beta01-07 16 10614 16.so.16.14[.0] + 1.6.14rc01-02 16 10614 16.so.16.14[.0] + 1.6.14 16 10614 16.so.16.14[.0] Henceforth the source version will match the shared-library minor and patch numbers; the shared-library major version number will be @@ -6084,7 +6089,7 @@ possible without all of you. Thanks to Frank J. T. Wojcik for helping with the documentation. -Libpng version 1.6.13 - August 21, 2014: +Libpng version 1.6.14 - October 23, 2014: Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc. Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net). @@ -6107,7 +6112,7 @@ this sentence. This code is released under the libpng license. -libpng versions 1.2.6, August 15, 2004, through 1.6.13, August 21, 2014, are +libpng versions 1.2.6, August 15, 2004, through 1.6.14, October 23, 2014, are Copyright (c) 2004,2006-2014 Glenn Randers-Pehrson, and are distributed according to the same disclaimer and license as libpng-1.2.5 with the following individual added to the list of Contributing Authors @@ -6206,7 +6211,7 @@ certification mark of the Open Source Initiative. Glenn Randers-Pehrson glennrp at users.sourceforge.net -August 21, 2014 +October 23, 2014 .\" end of man page diff --git a/libpngpf.3 b/libpngpf.3 index e94073562..9155936b5 100644 --- a/libpngpf.3 +++ b/libpngpf.3 @@ -1,6 +1,6 @@ -.TH LIBPNGPF 3 "August 21, 2014" +.TH LIBPNGPF 3 "October 23, 2014" .SH NAME -libpng \- Portable Network Graphics (PNG) Reference Library 1.6.13 +libpng \- Portable Network Graphics (PNG) Reference Library 1.6.14 (private functions) .SH SYNOPSIS \fB#include \fI"pngpriv.h" @@ -1,4 +1,4 @@ -.TH PNG 5 "August 21, 2014" +.TH PNG 5 "October 23, 2014" .SH NAME png \- Portable Network Graphics (PNG) format .SH DESCRIPTION @@ -1,7 +1,7 @@ /* png.c - location for general purpose libpng functions * - * Last changed in libpng 1.6.12 [June 12, 2014] + * Last changed in libpng 1.6.14 [October 23, 2014] * Copyright (c) 1998-2014 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) @@ -14,7 +14,7 @@ #include "pngpriv.h" /* Generate a compiler error if there is an old png.h in the search path. */ -typedef png_libpng_version_1_6_13 Your_png_h_is_not_version_1_6_13; +typedef png_libpng_version_1_6_14 Your_png_h_is_not_version_1_6_14; /* Tells libpng that we have already handled the first "num_bytes" bytes * of the PNG file signature. If the PNG data is embedded into another @@ -773,13 +773,13 @@ png_get_copyright(png_const_structrp png_ptr) #else # ifdef __STDC__ return PNG_STRING_NEWLINE \ - "libpng version 1.6.13 - August 21, 2014" PNG_STRING_NEWLINE \ + "libpng version 1.6.14 - October 23, 2014" PNG_STRING_NEWLINE \ "Copyright (c) 1998-2014 Glenn Randers-Pehrson" PNG_STRING_NEWLINE \ "Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \ "Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \ PNG_STRING_NEWLINE; # else - return "libpng version 1.6.13 - August 21, 2014\ + return "libpng version 1.6.14 - October 23, 2014\ Copyright (c) 1998-2014 Glenn Randers-Pehrson\ Copyright (c) 1996-1997 Andreas Dilger\ Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc."; @@ -2219,10 +2219,12 @@ png_compare_ICC_profile_with_sRGB(png_const_structrp png_ptr, #endif unsigned int i; +#ifdef PNG_SET_OPTION_SUPPORTED /* First see if PNG_SKIP_sRGB_CHECK_PROFILE has been set to "on" */ if (((png_ptr->options >> PNG_SKIP_sRGB_CHECK_PROFILE) & 3) == PNG_OPTION_ON) return 0; +#endif for (i=0; i < (sizeof png_sRGB_checks) / (sizeof png_sRGB_checks[0]); ++i) { @@ -3569,8 +3571,8 @@ png_log16bit(png_uint_32 x) * each case only the low 16 bits are relevant - the fraction - since the * integer bits (the top 4) simply determine a shift. * - * The worst case is the 16-bit distinction between 65535 and 65534, this - * requires perhaps spurious accuracty in the decoding of the logarithm to + * The worst case is the 16-bit distinction between 65535 and 65534. This + * requires perhaps spurious accuracy in the decoding of the logarithm to * distinguish log2(65535/65534.5) - 10^-5 or 17 bits. There is little chance * of getting this accuracy in practice. * @@ -3658,7 +3660,7 @@ png_exp8bit(png_fixed_point lg2) /* Get a 32-bit value: */ png_uint_32 x = png_exp(lg2); - /* Convert the 32-bit value to 0..255 by multiplying by 256-1, note that the + /* Convert the 32-bit value to 0..255 by multiplying by 256-1. Note that the * second, rounding, step can't overflow because of the first, subtraction, * step. */ @@ -3840,7 +3842,7 @@ png_build_16to8_table(png_structrp png_ptr, png_uint_16pp *ptable, /* 'num' is the number of tables and also the number of low bits of low * bits of the input 16-bit value used to select a table. Each table is - * itself index by the high 8 bits of the value. + * itself indexed by the high 8 bits of the value. */ for (i = 0; i < num; i++) table[i] = (png_uint_16p)png_malloc(png_ptr, @@ -3892,7 +3894,7 @@ png_build_16to8_table(png_structrp png_ptr, png_uint_16pp *ptable, /* Build a single 8-bit table: same as the 16-bit case but much simpler (and * typically much faster). Note that libpng currently does no sBIT processing - * (apparently contrary to the spec) so a 256 entry table is always generated. + * (apparently contrary to the spec) so a 256-entry table is always generated. */ static void png_build_8bit_table(png_structrp png_ptr, png_bytepp ptable, @@ -4033,7 +4035,7 @@ png_build_gamma_table(png_structrp png_ptr, int bit_depth) * Where 'iv' is the input color value and 'ov' is the output value - * pow(iv, gamma). * - * Thus the gamma table consists of up to 256 256 entry tables. The table + * Thus the gamma table consists of up to 256 256-entry tables. The table * is selected by the (8-gamma_shift) most significant of the low 8 bits of * the color value then indexed by the upper 8 bits: * @@ -4141,7 +4143,7 @@ png_set_option(png_structrp png_ptr, int option, int onoff) * * error: -0.513727 - 0.607759, 308 (0.469978%) of readings inexact * - * In all cases the inexact readings are off by one. + * In all cases the inexact readings are only off by one. */ #ifdef PNG_SIMPLIFIED_READ_SUPPORTED @@ -4181,8 +4183,7 @@ const png_uint_16 png_sRGB_table[256] = 57105,57646,58190,58737,59287,59840,60396,60955, 61517,62082,62650,63221,63795,64372,64952,65535 }; - -#endif /* simplified read only */ +#endif /* PNG_SIMPLIFIED_READ_SUPPORTED */ /* The base/delta tables are required for both read and write (but currently * only the simplified versions.) @@ -1,7 +1,7 @@ /* png.h - header file for PNG reference library * - * libpng version 1.6.13 - August 21, 2014 + * libpng version 1.6.14 - October 23, 2014 * Copyright (c) 1998-2014 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) @@ -11,7 +11,7 @@ * Authors and maintainers: * libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat * libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger - * libpng versions 0.97, January 1998, through 1.6.13 - August 21, 2014: Glenn + * libpng versions 0.97, January 1998, through 1.6.14 - October 23, 2014: Glenn * See also "Contributing Authors", below. * * Note about libpng version numbers: @@ -203,6 +203,9 @@ * 1.6.13beta01-04 16 10613 16.so.16.13[.0] * 1.6.13rc01-02 16 10613 16.so.16.13[.0] * 1.6.13 16 10613 16.so.16.13[.0] + * 1.6.14beta01-07 16 10614 16.so.16.14[.0] + * 1.6.14rc01-02 16 10614 16.so.16.14[.0] + * 1.6.14 16 10614 16.so.16.14[.0] * * Henceforth the source version will match the shared-library major * and minor numbers; the shared-library major version number will be @@ -234,7 +237,7 @@ * * This code is released under the libpng license. * - * libpng versions 1.2.6, August 15, 2004, through 1.6.13, August 21, 2014, are + * libpng versions 1.2.6, August 15, 2004, through 1.6.14, October 23, 2014, are * Copyright (c) 2004, 2006-2014 Glenn Randers-Pehrson, and are * distributed according to the same disclaimer and license as libpng-1.2.5 * with the following individual added to the list of Contributing Authors: @@ -346,13 +349,13 @@ * Y2K compliance in libpng: * ========================= * - * August 21, 2014 + * October 23, 2014 * * Since the PNG Development group is an ad-hoc body, we can't make * an official declaration. * * This is your unofficial assurance that libpng from version 0.71 and - * upward through 1.6.13 are Y2K compliant. It is my belief that + * upward through 1.6.14 are Y2K compliant. It is my belief that * earlier versions were also Y2K compliant. * * Libpng only has two year fields. One is a 2-byte unsigned integer @@ -414,9 +417,9 @@ */ /* Version information for png.h - this should match the version in png.c */ -#define PNG_LIBPNG_VER_STRING "1.6.13" +#define PNG_LIBPNG_VER_STRING "1.6.14" #define PNG_HEADER_VERSION_STRING \ - " libpng version 1.6.13 - August 21, 2014\n" + " libpng version 1.6.14 - October 23, 2014\n" #define PNG_LIBPNG_VER_SONUM 16 #define PNG_LIBPNG_VER_DLLNUM 16 @@ -424,7 +427,7 @@ /* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */ #define PNG_LIBPNG_VER_MAJOR 1 #define PNG_LIBPNG_VER_MINOR 6 -#define PNG_LIBPNG_VER_RELEASE 13 +#define PNG_LIBPNG_VER_RELEASE 14 /* This should match the numeric part of the final component of * PNG_LIBPNG_VER_STRING, omitting any leading zero: @@ -455,7 +458,7 @@ * version 1.0.0 was mis-numbered 100 instead of 10000). From * version 1.0.1 it's xxyyzz, where x=major, y=minor, z=release */ -#define PNG_LIBPNG_VER 10613 /* 1.6.13 */ +#define PNG_LIBPNG_VER 10614 /* 1.6.14 */ /* Library configuration: these options cannot be changed after * the library has been built. @@ -560,7 +563,7 @@ extern "C" { /* This triggers a compiler error in png.c, if png.c and png.h * do not agree upon the version number. */ -typedef char* png_libpng_version_1_6_13; +typedef char* png_libpng_version_1_6_14; /* Basic control structions. Read libpng-manual.txt or libpng.3 for more info. * @@ -2745,6 +2748,8 @@ PNG_EXPORT(207, void, png_save_uint_16, (png_bytep buf, unsigned int i)); # endif #endif +#if defined(PNG_SIMPLIFIED_READ_SUPPORTED) || \ + defined(PNG_SIMPLIFIED_WRITE_SUPPORTED) /******************************************************************************* * SIMPLIFIED API ******************************************************************************* @@ -2816,7 +2821,7 @@ typedef struct # define PNG_IMAGE_WARNING 1 # define PNG_IMAGE_ERROR 2 /* - * The result is a two bit code such that a value more than 1 indicates + * The result is a two-bit code such that a value more than 1 indicates * a failure in the API just called: * * 0 - no warning or error @@ -3197,6 +3202,7 @@ PNG_EXPORT(240, int, png_image_write_to_stdio, (png_imagep image, FILE *file, /******************************************************************************* * END OF SIMPLIFIED API ******************************************************************************/ +#endif /* PNG_SIMPLIFIED_{READ|WRITE}_SUPPORTED */ #ifdef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED PNG_EXPORT(242, void, png_set_check_for_invalid_index, @@ -3244,19 +3250,18 @@ PNG_EXPORT(243, int, png_get_palette_max, (png_const_structp png_ptr, PNG_EXPORT(244, int, png_set_option, (png_structrp png_ptr, int option, int onoff)); -#endif +#endif /* PNG_SET_OPTION_SUPPORTED */ /******************************************************************************* * END OF HARDWARE AND SOFTWARE OPTIONS ******************************************************************************/ -/* Maintainer: Put new public prototypes here ^, in libpng.3, and project - * defs, scripts/pnglibconf.h, and scripts/pnglibconf.h.prebuilt +/* Maintainer: Put new public prototypes here ^, in libpng.3, in project + * defs, and in scripts/symbols.def. */ /* The last ordinal number (this is the *last* one already used; the next - * one to use is one more than this.) Maintainer, remember to add an entry to - * scripts/symbols.def as well. + * one to use is one more than this.) */ #ifdef PNG_EXPORT_LAST_ORDINAL PNG_EXPORT_LAST_ORDINAL(244); @@ -1,7 +1,7 @@ /* pngconf.h - machine configurable file for libpng * - * libpng version 1.6.13 - August 21, 2014 + * libpng version 1.6.14 - October 23, 2014 * * Copyright (c) 1998-2014 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) diff --git a/pngpread.c b/pngpread.c index a4d073b94..bcd9261df 100644 --- a/pngpread.c +++ b/pngpread.c @@ -1,7 +1,7 @@ /* pngpread.c - read a png file in push mode * - * Last changed in libpng 1.6.11 [June 5, 2014] + * Last changed in libpng 1.6.14 [October 23, 2014] * Copyright (c) 1998-2014 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) @@ -26,6 +26,13 @@ #define PNG_READ_iTXt_MODE 7 #define PNG_ERROR_MODE 8 +#define PNG_PUSH_SAVE_BUFFER_IF_FULL \ +if (png_ptr->push_length + 4 > png_ptr->buffer_size) \ + { png_push_save_buffer(png_ptr); return; } +#define PNG_PUSH_SAVE_BUFFER_IF_LT(N) \ +if (png_ptr->buffer_size < N) \ + { png_push_save_buffer(png_ptr); return; } + void PNGAPI png_process_data(png_structrp png_ptr, png_inforp info_ptr, png_bytep buffer, png_size_t buffer_size) @@ -46,7 +53,7 @@ png_process_data_pause(png_structrp png_ptr, int save) { if (png_ptr != NULL) { - /* It's easiest for the caller if we do the save, then the caller doesn't + /* It's easiest for the caller if we do the save; then the caller doesn't * have to supply the same data again: */ if (save != 0) @@ -189,10 +196,10 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr) int keep; /* unknown handling method */ #endif - /* First we make sure we have enough data for the 4 byte chunk name - * and the 4 byte chunk length before proceeding with decoding the + /* First we make sure we have enough data for the 4-byte chunk name + * and the 4-byte chunk length before proceeding with decoding the * chunk data. To fully decode each of these chunks, we also make - * sure we have enough data in the buffer for the 4 byte CRC at the + * sure we have enough data in the buffer for the 4-byte CRC at the * end of every chunk (except IDAT, which is handled separately). */ if (!(png_ptr->mode & PNG_HAVE_CHUNK_HEADER)) @@ -200,12 +207,7 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr) png_byte chunk_length[4]; png_byte chunk_tag[4]; - if (png_ptr->buffer_size < 8) - { - png_push_save_buffer(png_ptr); - return; - } - + PNG_PUSH_SAVE_BUFFER_IF_LT(8) png_push_fill_buffer(png_ptr, chunk_length, 4); png_ptr->push_length = png_get_uint_31(png_ptr, chunk_length); png_reset_crc(png_ptr); @@ -249,23 +251,13 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr) if (png_ptr->push_length != 13) png_error(png_ptr, "Invalid IHDR length"); - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - + PNG_PUSH_SAVE_BUFFER_IF_FULL png_handle_IHDR(png_ptr, info_ptr, png_ptr->push_length); } else if (chunk_name == png_IEND) { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - + PNG_PUSH_SAVE_BUFFER_IF_FULL png_handle_IEND(png_ptr, info_ptr, png_ptr->push_length); png_ptr->process_mode = PNG_READ_DONE_MODE; @@ -275,12 +267,7 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr) #ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED else if ((keep = png_chunk_unknown_handling(png_ptr, chunk_name)) != 0) { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - + PNG_PUSH_SAVE_BUFFER_IF_FULL png_handle_unknown(png_ptr, info_ptr, png_ptr->push_length, keep); if (chunk_name == png_PLTE) @@ -290,11 +277,7 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr) else if (chunk_name == png_PLTE) { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } + PNG_PUSH_SAVE_BUFFER_IF_FULL png_handle_PLTE(png_ptr, info_ptr, png_ptr->push_length); } @@ -313,12 +296,7 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr) #ifdef PNG_READ_gAMA_SUPPORTED else if (png_ptr->chunk_name == png_gAMA) { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - + PNG_PUSH_SAVE_BUFFER_IF_FULL png_handle_gAMA(png_ptr, info_ptr, png_ptr->push_length); } @@ -326,12 +304,7 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr) #ifdef PNG_READ_sBIT_SUPPORTED else if (png_ptr->chunk_name == png_sBIT) { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - + PNG_PUSH_SAVE_BUFFER_IF_FULL png_handle_sBIT(png_ptr, info_ptr, png_ptr->push_length); } @@ -339,12 +312,7 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr) #ifdef PNG_READ_cHRM_SUPPORTED else if (png_ptr->chunk_name == png_cHRM) { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - + PNG_PUSH_SAVE_BUFFER_IF_FULL png_handle_cHRM(png_ptr, info_ptr, png_ptr->push_length); } @@ -352,12 +320,7 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr) #ifdef PNG_READ_sRGB_SUPPORTED else if (chunk_name == png_sRGB) { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - + PNG_PUSH_SAVE_BUFFER_IF_FULL png_handle_sRGB(png_ptr, info_ptr, png_ptr->push_length); } @@ -365,12 +328,7 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr) #ifdef PNG_READ_iCCP_SUPPORTED else if (png_ptr->chunk_name == png_iCCP) { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - + PNG_PUSH_SAVE_BUFFER_IF_FULL png_handle_iCCP(png_ptr, info_ptr, png_ptr->push_length); } @@ -378,12 +336,7 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr) #ifdef PNG_READ_sPLT_SUPPORTED else if (chunk_name == png_sPLT) { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - + PNG_PUSH_SAVE_BUFFER_IF_FULL png_handle_sPLT(png_ptr, info_ptr, png_ptr->push_length); } @@ -391,12 +344,7 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr) #ifdef PNG_READ_tRNS_SUPPORTED else if (chunk_name == png_tRNS) { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - + PNG_PUSH_SAVE_BUFFER_IF_FULL png_handle_tRNS(png_ptr, info_ptr, png_ptr->push_length); } @@ -404,12 +352,7 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr) #ifdef PNG_READ_bKGD_SUPPORTED else if (chunk_name == png_bKGD) { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - + PNG_PUSH_SAVE_BUFFER_IF_FULL png_handle_bKGD(png_ptr, info_ptr, png_ptr->push_length); } @@ -417,12 +360,7 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr) #ifdef PNG_READ_hIST_SUPPORTED else if (chunk_name == png_hIST) { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - + PNG_PUSH_SAVE_BUFFER_IF_FULL png_handle_hIST(png_ptr, info_ptr, png_ptr->push_length); } @@ -430,12 +368,7 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr) #ifdef PNG_READ_pHYs_SUPPORTED else if (chunk_name == png_pHYs) { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - + PNG_PUSH_SAVE_BUFFER_IF_FULL png_handle_pHYs(png_ptr, info_ptr, png_ptr->push_length); } @@ -443,12 +376,7 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr) #ifdef PNG_READ_oFFs_SUPPORTED else if (chunk_name == png_oFFs) { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - + PNG_PUSH_SAVE_BUFFER_IF_FULL png_handle_oFFs(png_ptr, info_ptr, png_ptr->push_length); } #endif @@ -456,12 +384,7 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr) #ifdef PNG_READ_pCAL_SUPPORTED else if (chunk_name == png_pCAL) { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - + PNG_PUSH_SAVE_BUFFER_IF_FULL png_handle_pCAL(png_ptr, info_ptr, png_ptr->push_length); } @@ -469,12 +392,7 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr) #ifdef PNG_READ_sCAL_SUPPORTED else if (chunk_name == png_sCAL) { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - + PNG_PUSH_SAVE_BUFFER_IF_FULL png_handle_sCAL(png_ptr, info_ptr, png_ptr->push_length); } @@ -482,12 +400,7 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr) #ifdef PNG_READ_tIME_SUPPORTED else if (chunk_name == png_tIME) { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - + PNG_PUSH_SAVE_BUFFER_IF_FULL png_handle_tIME(png_ptr, info_ptr, png_ptr->push_length); } @@ -495,12 +408,7 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr) #ifdef PNG_READ_tEXt_SUPPORTED else if (chunk_name == png_tEXt) { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - + PNG_PUSH_SAVE_BUFFER_IF_FULL png_handle_tEXt(png_ptr, info_ptr, png_ptr->push_length); } @@ -508,12 +416,7 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr) #ifdef PNG_READ_zTXt_SUPPORTED else if (chunk_name == png_zTXt) { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - + PNG_PUSH_SAVE_BUFFER_IF_FULL png_handle_zTXt(png_ptr, info_ptr, png_ptr->push_length); } @@ -521,23 +424,14 @@ png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr) #ifdef PNG_READ_iTXt_SUPPORTED else if (chunk_name == png_iTXt) { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - + PNG_PUSH_SAVE_BUFFER_IF_FULL png_handle_iTXt(png_ptr, info_ptr, png_ptr->push_length); } #endif else { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } + PNG_PUSH_SAVE_BUFFER_IF_FULL png_handle_unknown(png_ptr, info_ptr, png_ptr->push_length, PNG_HANDLE_CHUNK_AS_DEFAULT); } @@ -602,12 +496,7 @@ png_push_crc_finish(png_structrp png_ptr) } if (!png_ptr->skip_length) { - if (png_ptr->buffer_size < 4) - { - png_push_save_buffer(png_ptr); - return; - } - + PNG_PUSH_SAVE_BUFFER_IF_LT(4) png_crc_finish(png_ptr, 0); png_ptr->process_mode = PNG_READ_CHUNK_MODE; } @@ -732,12 +621,7 @@ png_push_read_IDAT(png_structrp png_ptr) png_byte chunk_tag[4]; /* TODO: this code can be commoned up with the same code in push_read */ - if (png_ptr->buffer_size < 8) - { - png_push_save_buffer(png_ptr); - return; - } - + PNG_PUSH_SAVE_BUFFER_IF_LT(8) png_push_fill_buffer(png_ptr, chunk_length, 4); png_ptr->push_length = png_get_uint_31(png_ptr, chunk_length); png_reset_crc(png_ptr); @@ -812,12 +696,7 @@ png_push_read_IDAT(png_structrp png_ptr) } if (!png_ptr->idat_size) { - if (png_ptr->buffer_size < 4) - { - png_push_save_buffer(png_ptr); - return; - } - + PNG_PUSH_SAVE_BUFFER_IF_LT(4) png_crc_finish(png_ptr, 0); png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER; png_ptr->mode |= PNG_AFTER_IDAT; @@ -1090,7 +1090,7 @@ PNG_INTERNAL_FUNCTION(void,png_write_tEXt,(png_structrp png_ptr, #ifdef PNG_WRITE_zTXt_SUPPORTED PNG_INTERNAL_FUNCTION(void,png_write_zTXt,(png_structrp png_ptr, png_const_charp - key, png_const_charp text, png_size_t text_len, int compression),PNG_EMPTY); + key, png_const_charp text, int compression),PNG_EMPTY); #endif #ifdef PNG_WRITE_iTXt_SUPPORTED @@ -396,6 +396,7 @@ png_read_row(png_structrp png_ptr, png_bytep row, png_bytep dsp_row) row_info.pixel_depth = png_ptr->pixel_depth; row_info.rowbytes = PNG_ROWBYTES(row_info.pixel_depth, row_info.width); +#ifdef PNG_WARNINGS_SUPPORTED if (png_ptr->row_number == 0 && png_ptr->pass == 0) { /* Check for transforms that have been set but were defined out */ @@ -435,6 +436,7 @@ png_read_row(png_structrp png_ptr, png_bytep row, png_bytep dsp_row) png_warning(png_ptr, "PNG_READ_SWAP_SUPPORTED is not defined"); #endif } +#endif /* PNG_WARNINGS_SUPPORTED */ #ifdef PNG_READ_INTERLACING_SUPPORTED /* If interlaced and we do not need a new row, combine row and return. diff --git a/pngrtran.c b/pngrtran.c index d8ab70513..91e647161 100644 --- a/pngrtran.c +++ b/pngrtran.c @@ -959,7 +959,7 @@ png_set_rgb_to_gray_fixed(png_structrp png_ptr, int error_action, if (!png_rtran_ok(png_ptr, 1)) return; - switch(error_action) + switch (error_action) { case PNG_ERROR_ACTION_NONE: png_ptr->transformations |= PNG_RGB_TO_GRAY; diff --git a/pngrutil.c b/pngrutil.c index 3f415bf7d..a48907aeb 100644 --- a/pngrutil.c +++ b/pngrutil.c @@ -1,7 +1,7 @@ /* pngrutil.c - utilities to read a PNG file * - * Last changed in libpng 1.6.11 [June 5, 2014] + * Last changed in libpng 1.6.14 [October 23, 2014] * Copyright (c) 1998-2014 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) @@ -341,12 +341,12 @@ png_inflate_claim(png_structrp png_ptr, png_uint_32 owner) * are minimal. */ (void)png_safecat(msg, (sizeof msg), 4, " using zstream"); -# if PNG_LIBPNG_BUILD_BASE_TYPE >= PNG_LIBPNG_BUILD_RC - png_chunk_warning(png_ptr, msg); - png_ptr->zowner = 0; -# else - png_chunk_error(png_ptr, msg); -# endif +#if PNG_LIBPNG_BUILD_BASE_TYPE >= PNG_LIBPNG_BUILD_RC + png_chunk_warning(png_ptr, msg); + png_ptr->zowner = 0; +#else + png_chunk_error(png_ptr, msg); +#endif } /* Implementation note: unlike 'png_deflate_claim' this internal function @@ -364,22 +364,21 @@ png_inflate_claim(png_structrp png_ptr, png_uint_32 owner) */ { int ret; /* zlib return code */ -# if PNG_ZLIB_VERNUM >= 0x1240 +#if PNG_ZLIB_VERNUM >= 0x1240 -# if defined(PNG_SET_OPTION_SUPPORTED) && \ - defined(PNG_MAXIMUM_INFLATE_WINDOW) - int window_bits; +# if defined(PNG_SET_OPTION_SUPPORTED) && defined(PNG_MAXIMUM_INFLATE_WINDOW) + int window_bits; - if (((png_ptr->options >> PNG_MAXIMUM_INFLATE_WINDOW) & 3) == - PNG_OPTION_ON) - window_bits = 15; + if (((png_ptr->options >> PNG_MAXIMUM_INFLATE_WINDOW) & 3) == + PNG_OPTION_ON) + window_bits = 15; - else - window_bits = 0; -# else -# define window_bits 0 -# endif -# endif + else + window_bits = 0; +# else +# define window_bits 0 +# endif +#endif /* Set this for safety, just in case the previous owner left pointers to * memory allocations. @@ -391,20 +390,20 @@ png_inflate_claim(png_structrp png_ptr, png_uint_32 owner) if (png_ptr->flags & PNG_FLAG_ZSTREAM_INITIALIZED) { -# if PNG_ZLIB_VERNUM < 0x1240 - ret = inflateReset(&png_ptr->zstream); -# else - ret = inflateReset2(&png_ptr->zstream, window_bits); -# endif +#if PNG_ZLIB_VERNUM < 0x1240 + ret = inflateReset(&png_ptr->zstream); +#else + ret = inflateReset2(&png_ptr->zstream, window_bits); +#endif } else { -# if PNG_ZLIB_VERNUM < 0x1240 - ret = inflateInit(&png_ptr->zstream); -# else - ret = inflateInit2(&png_ptr->zstream, window_bits); -# endif +#if PNG_ZLIB_VERNUM < 0x1240 + ret = inflateInit(&png_ptr->zstream); +#else + ret = inflateInit2(&png_ptr->zstream, window_bits); +#endif if (ret == Z_OK) png_ptr->flags |= PNG_FLAG_ZSTREAM_INITIALIZED; @@ -419,9 +418,9 @@ png_inflate_claim(png_structrp png_ptr, png_uint_32 owner) return ret; } -# ifdef window_bits -# undef window_bits -# endif +#ifdef window_bits +# undef window_bits +#endif } #ifdef PNG_READ_COMPRESSED_TEXT_SUPPORTED @@ -518,7 +517,7 @@ png_inflate(png_structrp png_ptr, png_uint_32 owner, int finish, * end of the output buffer. */ ret = inflate(&png_ptr->zstream, avail_out > 0 ? Z_NO_FLUSH : - (finish ? Z_FINISH : Z_SYNC_FLUSH)); + (finish ? Z_FINISH : Z_SYNC_FLUSH)); } while (ret == Z_OK); /* For safety kill the local buffer pointer now */ @@ -576,14 +575,14 @@ png_decompress_chunk(png_structrp png_ptr, */ png_alloc_size_t limit = PNG_SIZE_MAX; -# ifdef PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED - if (png_ptr->user_chunk_malloc_max > 0 && - png_ptr->user_chunk_malloc_max < limit) - limit = png_ptr->user_chunk_malloc_max; -# elif PNG_USER_CHUNK_MALLOC_MAX > 0 - if (PNG_USER_CHUNK_MALLOC_MAX < limit) - limit = PNG_USER_CHUNK_MALLOC_MAX; -# endif +# ifdef PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED + if (png_ptr->user_chunk_malloc_max > 0 && + png_ptr->user_chunk_malloc_max < limit) + limit = png_ptr->user_chunk_malloc_max; +# elif PNG_USER_CHUNK_MALLOC_MAX > 0 + if (PNG_USER_CHUNK_MALLOC_MAX < limit) + limit = PNG_USER_CHUNK_MALLOC_MAX; +# endif if (limit >= prefix_size + (terminate != 0)) { @@ -1011,7 +1010,7 @@ png_handle_PLTE(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) */ #ifdef PNG_READ_tRNS_SUPPORTED if (png_ptr->num_trans > 0 || - (info_ptr != NULL && (info_ptr->valid & PNG_INFO_tRNS) != 0)) + (info_ptr != NULL && (info_ptr->valid & PNG_INFO_tRNS) != 0)) { /* Cancel this because otherwise it would be used if the transforms * require it. Don't cancel the 'valid' flag because this would prevent @@ -2672,7 +2671,7 @@ png_handle_iTXt(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) buffer[uncompressed_length+prefix_length] = 0; - if (compressed != 0) + if (compressed == 0) text.compression = PNG_ITXT_COMPRESSION_NONE; else @@ -3331,7 +3330,7 @@ png_combine_row(png_const_structrp png_ptr, png_bytep dp, int display) /* This can only be the RGB case, so each copy is exactly one * pixel and it is not necessary to check for a partial copy. */ - for(;;) + for (;;) { dp[0] = sp[0], dp[1] = sp[1], dp[2] = sp[2]; @@ -726,7 +726,7 @@ png_set_text_2(png_const_structrp png_ptr, png_inforp info_ptr, else max_text = INT_MAX; - /* Now allocate a new array and copy the old members in, this does all + /* Now allocate a new array and copy the old members in; this does all * the overflow checks. */ new_text = png_voidcast(png_textp,png_realloc_array(png_ptr, @@ -1020,8 +1020,8 @@ png_set_sPLT(png_const_structrp png_ptr, np->depth = entries->depth; - /* In the even of out-of-memory just return - there's no point keeping on - * trying to add sPLT chunks. + /* In the event of out-of-memory just return - there's no point keeping + * on trying to add sPLT chunks. */ length = strlen(entries->name) + 1; np->name = png_voidcast(png_charp, png_malloc_base(png_ptr, length)); @@ -1032,8 +1032,8 @@ png_set_sPLT(png_const_structrp png_ptr, memcpy(np->name, entries->name, length); /* IMPORTANT: we have memory now that won't get freed if something else - * goes wrong, this code must free it. png_malloc_array produces no - * warnings, use a png_chunk_report (below) if there is an error. + * goes wrong; this code must free it. png_malloc_array produces no + * warnings; use a png_chunk_report (below) if there is an error. */ np->entries = png_voidcast(png_sPLT_entryp, png_malloc_array(png_ptr, entries->nentries, sizeof (png_sPLT_entry))); @@ -1072,7 +1072,7 @@ check_location(png_const_structrp png_ptr, int location) location &= (PNG_HAVE_IHDR|PNG_HAVE_PLTE|PNG_AFTER_IDAT); /* New in 1.6.0; copy the location and check it. This is an API - * change, previously the app had to use the + * change; previously the app had to use the * png_set_unknown_chunk_location API below for each chunk. */ if (location == 0 && !(png_ptr->mode & PNG_IS_READ_STRUCT)) @@ -1578,7 +1578,7 @@ png_set_benign_errors(png_structrp png_ptr, int allowed) * It is possible for an indexed (color-type==3) PNG file to contain * pixels with invalid (out-of-range) indexes if the PLTE chunk has * fewer entries than the image's bit-depth would allow. We recover - * from this gracefully by filling any incomplete palette with zeroes + * from this gracefully by filling any incomplete palette with zeros * (opaque black). By default, when this occurs libpng will issue * a benign error. This API can be used to override that behavior. */ @@ -646,7 +646,7 @@ set_location(png_structp png_ptr, struct user_chunk_data *data, int what) if ((data->location[0] & what) || (data->location[1] & what)) return 0; /* already have one of these */ - /* Find where we are (the code below zeros info_ptr to indicate that the + /* Find where we are (the code below zeroes info_ptr to indicate that the * chunks before the first IDAT have been read.) */ if (data->info_ptr == NULL) /* after IDAT */ @@ -1991,4 +1991,4 @@ main(void) #endif /* Generate a compiler error if there is an old png.h in the search path. */ -typedef png_libpng_version_1_6_13 Your_png_h_is_not_version_1_6_13; +typedef png_libpng_version_1_6_14 Your_png_h_is_not_version_1_6_14; diff --git a/pngtrans.c b/pngtrans.c index 9b6c3d0cd..631e3c15e 100644 --- a/pngtrans.c +++ b/pngtrans.c @@ -828,7 +828,7 @@ png_get_user_transform_ptr(png_const_structrp png_ptr) png_uint_32 PNGAPI png_get_current_row_number(png_const_structrp png_ptr) { - /* See the comments in png.h - this is the sub-image row when reading and + /* See the comments in png.h - this is the sub-image row when reading an * interlaced image. */ if (png_ptr != NULL) diff --git a/pngwrite.c b/pngwrite.c index f03aeb2ce..6a831f62c 100644 --- a/pngwrite.c +++ b/pngwrite.c @@ -1,7 +1,7 @@ /* pngwrite.c - general routines to write a PNG file * - * Last changed in libpng 1.6.11 [June 5, 2014] + * Last changed in libpng 1.6.14 [October 23, 2014] * Copyright (c) 1998-2014 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) @@ -292,11 +292,14 @@ png_write_info(png_structrp png_ptr, png_const_inforp info_ptr) info_ptr->text[i].lang, info_ptr->text[i].lang_key, info_ptr->text[i].text); + /* Mark this chunk as written */ + if (info_ptr->text[i].compression == PNG_TEXT_COMPRESSION_NONE) + info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR; + else + info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_zTXt_WR; #else - png_warning(png_ptr, "Unable to write international text"); + png_warning(png_ptr, "Unable to write international text"); #endif - /* Mark this chunk as written */ - info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR; } /* If we want a compressed text chunk */ @@ -305,13 +308,12 @@ png_write_info(png_structrp png_ptr, png_const_inforp info_ptr) #ifdef PNG_WRITE_zTXt_SUPPORTED /* Write compressed chunk */ png_write_zTXt(png_ptr, info_ptr->text[i].key, - info_ptr->text[i].text, 0, - info_ptr->text[i].compression); + info_ptr->text[i].text, info_ptr->text[i].compression); + /* Mark this chunk as written */ + info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_zTXt_WR; #else png_warning(png_ptr, "Unable to write compressed text"); #endif - /* Mark this chunk as written */ - info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_zTXt_WR; } else if (info_ptr->text[i].compression == PNG_TEXT_COMPRESSION_NONE) @@ -387,11 +389,14 @@ png_write_end(png_structrp png_ptr, png_inforp info_ptr) info_ptr->text[i].lang, info_ptr->text[i].lang_key, info_ptr->text[i].text); + /* Mark this chunk as written */ + if (info_ptr->text[i].compression == PNG_TEXT_COMPRESSION_NONE) + info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR; + else + info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_zTXt_WR; #else png_warning(png_ptr, "Unable to write international text"); #endif - /* Mark this chunk as written */ - info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR; } else if (info_ptr->text[i].compression >= PNG_TEXT_COMPRESSION_zTXt) @@ -399,13 +404,12 @@ png_write_end(png_structrp png_ptr, png_inforp info_ptr) #ifdef PNG_WRITE_zTXt_SUPPORTED /* Write compressed chunk */ png_write_zTXt(png_ptr, info_ptr->text[i].key, - info_ptr->text[i].text, 0, - info_ptr->text[i].compression); + info_ptr->text[i].text, info_ptr->text[i].compression); + /* Mark this chunk as written */ + info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_zTXt_WR; #else png_warning(png_ptr, "Unable to write compressed text"); #endif - /* Mark this chunk as written */ - info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_zTXt_WR; } else if (info_ptr->text[i].compression == PNG_TEXT_COMPRESSION_NONE) @@ -414,12 +418,11 @@ png_write_end(png_structrp png_ptr, png_inforp info_ptr) /* Write uncompressed chunk */ png_write_tEXt(png_ptr, info_ptr->text[i].key, info_ptr->text[i].text, 0); + /* Mark this chunk as written */ + info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR; #else png_warning(png_ptr, "Unable to write uncompressed text"); #endif - - /* Mark this chunk as written */ - info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR; } } #endif diff --git a/pngwutil.c b/pngwutil.c index 8a0b7f2ec..45b6b1e35 100644 --- a/pngwutil.c +++ b/pngwutil.c @@ -1,7 +1,7 @@ /* pngwutil.c - utilities to write a PNG file * - * Last changed in libpng 1.6.11 [June 5, 2014] + * Last changed in libpng 1.6.14 [October 23, 2014] * Copyright (c) 1998-2014 Glenn Randers-Pehrson * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) @@ -136,7 +136,7 @@ png_write_chunk_data(png_structrp png_ptr, png_const_bytep data, png_write_data(png_ptr, data, length); /* Update the CRC after writing the data, - * in case that the user I/O routine alters it. + * in case the user I/O routine alters it. */ png_calculate_crc(png_ptr, data, length); } @@ -181,7 +181,7 @@ png_write_complete_chunk(png_structrp png_ptr, png_uint_32 chunk_name, /* On 64 bit architectures 'length' may not fit in a png_uint_32. */ if (length > PNG_UINT_31_MAX) - png_error(png_ptr, "length exceeds PNG maxima"); + png_error(png_ptr, "length exceeds PNG maximum"); png_write_chunk_header(png_ptr, chunk_name, (png_uint_32)length); png_write_chunk_data(png_ptr, data, length); @@ -204,7 +204,7 @@ png_write_chunk(png_structrp png_ptr, png_const_bytep chunk_string, static png_alloc_size_t png_image_size(png_structrp png_ptr) { - /* Only return sizes up to the maximum of a png_uint_32, do this by limiting + /* Only return sizes up to the maximum of a png_uint_32; do this by limiting * the width and height used to 15 bits. */ png_uint_32 h = png_ptr->height; @@ -297,6 +297,7 @@ png_deflate_claim(png_structrp png_ptr, png_uint_32 owner, { if (png_ptr->zowner != 0) { +# if defined(PNG_WARNINGS_SUPPORTED) || defined(PNG_ERROR_TEXT_SUPPORTED) char msg[64]; PNG_STRING_FROM_CHUNK(msg, owner); @@ -308,6 +309,7 @@ png_deflate_claim(png_structrp png_ptr, png_uint_32 owner, * are minimal. */ (void)png_safecat(msg, (sizeof msg), 10, " using zstream"); +# endif # if PNG_LIBPNG_BUILD_BASE_TYPE >= PNG_LIBPNG_BUILD_RC png_warning(png_ptr, msg); @@ -492,7 +494,7 @@ png_text_compress(png_structrp png_ptr, png_uint_32 chunk_name, int ret; /* To find the length of the output it is necessary to first compress the - * input, the result is buffered rather than using the two-pass algorithm + * input. The result is buffered rather than using the two-pass algorithm * that is used on the inflate side; deflate is assumed to be slower and a * PNG writer is assumed to have more memory available than a PNG reader. * @@ -589,7 +591,7 @@ png_text_compress(png_structrp png_ptr, png_uint_32 chunk_name, } while (ret == Z_OK); - /* There may be some space left in the last output buffer, this needs to + /* There may be some space left in the last output buffer. This needs to * be subtracted from output_len. */ output_len -= png_ptr->zstream.avail_out; @@ -612,7 +614,7 @@ png_text_compress(png_structrp png_ptr, png_uint_32 chunk_name, /* Reset zlib for another zTXt/iTXt or image data */ png_ptr->zowner = 0; - /* The only success case is Z_STREAM_END, input_len must be 0, if not this + /* The only success case is Z_STREAM_END, input_len must be 0; if not this * is an internal error. */ if (ret == Z_STREAM_END && input_len == 0) @@ -728,6 +730,7 @@ png_check_keyword(png_structrp png_ptr, png_const_charp key, png_bytep new_key) if (key_len == 0) return 0; +#ifdef PNG_WARNINGS_SUPPORTED /* Try to only output one warning per keyword: */ if (*key) /* keyword too long */ png_warning(png_ptr, "keyword truncated"); @@ -741,6 +744,7 @@ png_check_keyword(png_structrp png_ptr, png_const_charp key, png_bytep new_key) png_formatted_warning(png_ptr, p, "keyword \"@1\": bad character '0x@2'"); } +#endif /* PNG_WARNINGS_SUPPORTED */ return key_len; } @@ -998,7 +1002,7 @@ png_write_PLTE(png_structrp png_ptr, png_const_colorp palette, * Z_FINISH: this is the end of the input, do a Z_FINISH and clean up * * The routine manages the acquire and release of the png_ptr->zstream by - * checking and (at the end) clearing png_ptr->zowner, it does some sanity + * checking and (at the end) clearing png_ptr->zowner; it does some sanity * checks on the 'mode' flags while doing this. */ void /* PRIVATE */ @@ -1058,7 +1062,7 @@ png_compress_IDAT(png_structrp png_ptr, png_const_bytep input, input_len += png_ptr->zstream.avail_in; png_ptr->zstream.avail_in = 0; - /* OUTPUT: write complete IDAT chunks when avail_out drops to zero, note + /* OUTPUT: write complete IDAT chunks when avail_out drops to zero. Note * that these two zstream fields are preserved across the calls, therefore * there is no need to set these up on entry to the loop. */ @@ -1090,7 +1094,7 @@ png_compress_IDAT(png_structrp png_ptr, png_const_bytep input, continue; } - /* The order of these checks doesn't matter much; it just effect which + /* The order of these checks doesn't matter much; it just affects which * possible error might be detected if multiple things go wrong at once. */ if (ret == Z_OK) /* most likely return code! */ @@ -1621,14 +1625,13 @@ png_write_tEXt(png_structrp png_ptr, png_const_charp key, png_const_charp text, /* Write a compressed text chunk */ void /* PRIVATE */ png_write_zTXt(png_structrp png_ptr, png_const_charp key, png_const_charp text, - png_size_t text_len, int compression) + int compression) { png_uint_32 key_len; png_byte new_key[81]; compression_state comp; png_debug(1, "in png_write_zTXt"); - PNG_UNUSED(text_len) /* Always use strlen */ if (compression == PNG_TEXT_COMPRESSION_NONE) { diff --git a/projects/vstudio/readme.txt b/projects/vstudio/readme.txt index 5b0035d55..bbb8c7263 100644 --- a/projects/vstudio/readme.txt +++ b/projects/vstudio/readme.txt @@ -1,7 +1,7 @@ VisualStudio instructions -libpng version 1.6.13 - August 21, 2014 +libpng version 1.6.14 - October 23, 2014 Copyright (c) 1998-2010 Glenn Randers-Pehrson diff --git a/projects/vstudio/zlib.props b/projects/vstudio/zlib.props index a39e57710..e4ff794b0 100644 --- a/projects/vstudio/zlib.props +++ b/projects/vstudio/zlib.props @@ -2,7 +2,7 @@ <!-- * zlib.props - location of zlib source * - * libpng version 1.6.13 - August 21, 2014 + * libpng version 1.6.14 - October 23, 2014 * * Copyright (c) 1998-2011 Glenn Randers-Pehrson * diff --git a/scripts/README.txt b/scripts/README.txt index 721a0ef34..16886c492 100644 --- a/scripts/README.txt +++ b/scripts/README.txt @@ -1,9 +1,9 @@ -Makefiles for libpng version 1.6.13 - August 21, 2014 +Makefiles for libpng version 1.6.14 - October 23, 2014 pnglibconf.h.prebuilt => Stores configuration settings makefile.linux => Linux/ELF makefile - (gcc, creates libpng16.so.16.1.6.13) + (gcc, creates libpng16.so.16.1.6.14) makefile.gcc => Generic makefile (gcc, creates static libpng.a) makefile.knr => Archaic UNIX Makefile that converts files with ansi2knr (Requires ansi2knr.c from @@ -33,12 +33,12 @@ pnglibconf.h.prebuilt => Stores configuration settings makefile.os2 => OS/2 Makefile (gcc and emx, requires libpng.def) makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc makefile.sggcc => Silicon Graphics (gcc, - creates libpng16.so.16.1.6.13) + creates libpng16.so.16.1.6.14) makefile.sgi => Silicon Graphics IRIX makefile (cc, creates static lib) makefile.solaris => Solaris 2.X makefile (gcc, - creates libpng16.so.16.1.6.13) + creates libpng16.so.16.1.6.14) makefile.so9 => Solaris 9 makefile (gcc, - creates libpng16.so.16.1.6.13) + creates libpng16.so.16.1.6.14) makefile.std => Generic UNIX makefile (cc, creates static libpng.a) makefile.sunos => Sun makefile makefile.32sunu => Sun Ultra 32-bit makefile diff --git a/scripts/def.dfn b/scripts/def.dfn index 439c6cd4d..b07164057 100644 --- a/scripts/def.dfn +++ b/scripts/def.dfn @@ -21,7 +21,7 @@ PNG_DFN "OS2 DESCRIPTION "PNG image compression library"" PNG_DFN "OS2 CODE PRELOAD MOVEABLE DISCARDABLE" PNG_DFN "" PNG_DFN "EXPORTS" -PNG_DFN ";Version 1.6.13" +PNG_DFN ";Version 1.6.14" #define PNG_EXPORTA(ordinal, type, name, args, attributes)\ PNG_DFN "@" SYMBOL_PREFIX "@@" name "@" diff --git a/scripts/libpng-config-head.in b/scripts/libpng-config-head.in index 035f3d616..d1128142b 100644 --- a/scripts/libpng-config-head.in +++ b/scripts/libpng-config-head.in @@ -11,7 +11,7 @@ # Modeled after libxml-config. -version=1.6.13 +version=1.6.14 prefix="" libdir="" libs="" diff --git a/scripts/libpng.pc.in b/scripts/libpng.pc.in index 2f6d3a2a3..035a69861 100644 --- a/scripts/libpng.pc.in +++ b/scripts/libpng.pc.in @@ -5,6 +5,6 @@ includedir=@includedir@/libpng16 Name: libpng Description: Loads and saves PNG files -Version: 1.6.13 +Version: 1.6.14 Libs: -L${libdir} -lpng16 Cflags: -I${includedir} diff --git a/scripts/makefile.cegcc b/scripts/makefile.cegcc index 99848ad69..324c6ad6f 100644 --- a/scripts/makefile.cegcc +++ b/scripts/makefile.cegcc @@ -23,7 +23,7 @@ VERMAJ = 1 VERMIN = 6 -VERMIC = 13 +VERMIC = 14 VER = $(VERMAJ).$(VERMIN).$(VERMIC) NAME = libpng PACKAGE = $(NAME)-$(VER) diff --git a/scripts/makefile.linux b/scripts/makefile.linux index a595cf8e3..58396d12c 100644 --- a/scripts/makefile.linux +++ b/scripts/makefile.linux @@ -10,7 +10,7 @@ # Library name: LIBNAME = libpng16 PNGMAJ = 16 -RELEASE = 13 +RELEASE = 14 # Shared library names: LIBSO=$(LIBNAME).so diff --git a/scripts/makefile.msys b/scripts/makefile.msys index a10b79ae9..1d815c052 100644 --- a/scripts/makefile.msys +++ b/scripts/makefile.msys @@ -18,7 +18,7 @@ exec_prefix=$(prefix) # Library name: LIBNAME = libpng16 PNGMAJ = 16 -RELEASE = 13 +RELEASE = 14 # Shared library names: LIBSO=$(LIBNAME).dll diff --git a/scripts/makefile.ne12bsd b/scripts/makefile.ne12bsd index b5a369aef..b203eb946 100644 --- a/scripts/makefile.ne12bsd +++ b/scripts/makefile.ne12bsd @@ -17,7 +17,7 @@ INCSDIR=${LOCALBASE}/include/libpng16 LIB= png16 SHLIB_MAJOR= 0 -SHLIB_MINOR= 1.6.13 +SHLIB_MINOR= 1.6.14 SRCS= png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \ pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \ pngwtran.c pngmem.c pngerror.c pngpread.c diff --git a/scripts/makefile.netbsd b/scripts/makefile.netbsd index e4aefc2a0..9987361e0 100644 --- a/scripts/makefile.netbsd +++ b/scripts/makefile.netbsd @@ -17,7 +17,7 @@ INCSDIR=${LOCALBASE}/include LIB= png SHLIB_MAJOR= 16 -SHLIB_MINOR= 1.6.13 +SHLIB_MINOR= 1.6.14 SRCS= png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \ pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \ pngwtran.c pngmem.c pngerror.c pngpread.c diff --git a/scripts/makefile.openbsd b/scripts/makefile.openbsd index 64257beda..5aed6f57d 100644 --- a/scripts/makefile.openbsd +++ b/scripts/makefile.openbsd @@ -11,7 +11,7 @@ LIBDIR= ${PREFIX}/lib MANDIR= ${PREFIX}/man/cat SHLIB_MAJOR= 16 -SHLIB_MINOR= 1.6.13 +SHLIB_MINOR= 1.6.14 LIB= png SRCS= png.c pngerror.c pngget.c pngmem.c pngpread.c \ diff --git a/scripts/options.awk b/scripts/options.awk index 850d90b4a..81b82ff09 100755 --- a/scripts/options.awk +++ b/scripts/options.awk @@ -1,9 +1,9 @@ #!/bin/awk -f # scripts/options.awk - library build configuration control # -# last changed in libpng version 1.5.7 - December 15, 2011 +# last changed in libpng version 1.6.11 - June 5, 2014 # -# Copyright (c) 1998-2011 Glenn Randers-Pehrson +# Copyright (c) 1998-2014 Glenn Randers-Pehrson # # This code is released under the libpng license. # For conditions of distribution and use, see the disclaimer diff --git a/scripts/pnglibconf.dfa b/scripts/pnglibconf.dfa index 46f61c2e7..62b922c02 100644 --- a/scripts/pnglibconf.dfa +++ b/scripts/pnglibconf.dfa @@ -8,7 +8,7 @@ com pnglibconf.h - library build configuration com version com -com Copyright (c) 1998-2012 Glenn Randers-Pehrson +com Copyright (c) 1998-2014 Glenn Randers-Pehrson com com This code is released under the libpng license. com For conditions of distribution and use, see the disclaimer @@ -114,6 +114,13 @@ file pnglibconf.h scripts/pnglibconf.dfa PNGLCONF_H logunsupported = 1 +# The following allows the output from configure to modify the contents of +# pnglibconf.h + +@#ifdef HAVE_CONFIG_H +@# include "config.h" +@#endif + # PNG_USER_CONFIG has to be defined on the compiler command line # to cause pngusr.h to be read while constructing pnglibconf.h # @@ -189,10 +196,6 @@ setting API_RULE default 0 setting PREFIX -# Default to using the read macros - -setting DEFAULT_READ_MACROS default 1 - # Implementation specific control of the optimizations, enabled by those # hardware or software options that need it (typically when run-time choices # must be made by the user) @@ -227,19 +230,21 @@ option ARM_NEON_CHECK disabled requires ALIGNED_MEMORY, sets ARM_NEON_OPT 1 # These settings configure the default compression level (0-9) and 'strategy'; -# strategy is as defined by the implementors of zlib, it describes the input +# strategy is as defined by the implementors of zlib. It describes the input # data and modifies the zlib parameters in an attempt to optimize the balance # between search and huffman encoding in the zlib algorithms. The defaults are # the zlib.h defaults - the apparently recursive definition does not arise # because the name of the setting is prefixed by PNG_ # # The TEXT values are the defaults when writing compressed text (all forms) -# -# Include the zlib header too, so that the defaults below are known + +# Include the zlib header so that the defaults below are known @# include <zlib.h> # The '@' here means to substitute the value when pnglibconf.h is built setting Z_DEFAULT_COMPRESSION default @Z_DEFAULT_COMPRESSION +# TODO: why aren't these Z_RLE; zlib.h says that Z_RLE, specifically, is +# appropriate for PNG images, maybe it doesn't exist in all versions? setting Z_DEFAULT_STRATEGY default @Z_FILTERED setting Z_DEFAULT_NOFILTER_STRATEGY default @Z_DEFAULT_STRATEGY setting ZLIB_VERNUM default @ZLIB_VERNUM @@ -247,6 +252,10 @@ setting ZLIB_VERNUM default @ZLIB_VERNUM setting TEXT_Z_DEFAULT_COMPRESSION default @Z_DEFAULT_COMPRESSION setting TEXT_Z_DEFAULT_STRATEGY default @Z_DEFAULT_STRATEGY +# Default to using the read macros + +setting DEFAULT_READ_MACROS default 1 + # The alternative is to call functions to read PNG values, if # the functions are turned *off* the read macros must always # be enabled, so turning this off will actually force the @@ -370,7 +379,16 @@ option SET_USER_LIMITS enables SET_CHUNK_MALLOC_LIMIT # # If these settings are *not* set libpng will not limit the size of # images or the size of data in ancilliary chunks. This does lead to -# security issues if PNG files come from untrusted sources. +# security issues if PNG files come from untrusted sources. Settings have the +# following interpretations: +# +# USER_WIDTH_MAX: maximum width of an image that will be read +# USER_HEIGHT_MAX: maximum height +# USER_CHUNK_MALLOC_MAX: maximum in-memory (decompressed) size of a single chunk +# USER_CHUNK_CACHE_MAX: maximum number of chunks to be cached +# +# Only chunks that are variable in number are counted towards the +# USER_CHUNK_CACHE_MAX limit setting USER_WIDTH_MAX setting USER_HEIGHT_MAX setting USER_CHUNK_CACHE_MAX @@ -714,7 +732,7 @@ chunk cHRM enables COLORSPACE chunk gAMA enables GAMMA chunk hIST chunk iCCP enables COLORSPACE, GAMMA -chunk iTXt +chunk iTXt enables TEXT chunk oFFs chunk pCAL chunk pHYs @@ -725,7 +743,7 @@ chunk sRGB enables COLORSPACE, GAMMA, SET_OPTION chunk tEXt requires TEXT chunk tIME chunk tRNS -chunk zTXt +chunk zTXt enables TEXT # This only affects support of the optional PLTE chunk in RGB and RGBA # images. Notice that READ_ANCILLARY_CHUNKS therefore disables part @@ -809,9 +827,9 @@ option SAVE_INT_32 disabled option WRITE_OPTIMIZE_CMF requires WRITE option READ_COMPRESSED_TEXT disabled +option READ_iCCP enables READ_COMPRESSED_TEXT option READ_iTXt enables READ_COMPRESSED_TEXT option READ_zTXt enables READ_COMPRESSED_TEXT -option READ_COMPRESSED_TEXT enables READ_TEXT option WRITE_oFFs enables SAVE_INT_32 option WRITE_pCAL enables SAVE_INT_32 @@ -821,7 +839,6 @@ option WRITE_COMPRESSED_TEXT disabled option WRITE_iCCP enables WRITE_COMPRESSED_TEXT option WRITE_iTXt enables WRITE_COMPRESSED_TEXT option WRITE_zTXt enables WRITE_COMPRESSED_TEXT -option WRITE_COMPRESSED_TEXT enables WRITE_TEXT # Turn this off to disable png_read_png() and png_write_png() and # leave the row_pointers member out of the info structure. diff --git a/scripts/pnglibconf.h.prebuilt b/scripts/pnglibconf.h.prebuilt index 4c8605a8a..2c45d90ae 100644 --- a/scripts/pnglibconf.h.prebuilt +++ b/scripts/pnglibconf.h.prebuilt @@ -1,8 +1,8 @@ -/* libpng 1.6.13 STANDARD API DEFINITION */ +/* libpng 1.6.14 STANDARD API DEFINITION */ /* pnglibconf.h - library build configuration */ -/* Libpng version 1.6.13 - August 21, 2014 */ +/* Libpng version 1.6.14 - October 23, 2014 */ /* Copyright (c) 1998-2014 Glenn Randers-Pehrson */ diff --git a/scripts/symbols.def b/scripts/symbols.def index 48a41b0f7..a10a4ae71 100644 --- a/scripts/symbols.def +++ b/scripts/symbols.def @@ -1,4 +1,4 @@ -;Version 1.6.13 +;Version 1.6.14 ;-------------------------------------------------------------- ; LIBPNG symbol list as a Win32 DEF file ; Contains all the symbols that can be exported from libpng |