diff options
Diffstat (limited to 'Build/source/libs/libpng/libpng-src/libpng.3')
-rw-r--r-- | Build/source/libs/libpng/libpng-src/libpng.3 | 43 |
1 files changed, 34 insertions, 9 deletions
diff --git a/Build/source/libs/libpng/libpng-src/libpng.3 b/Build/source/libs/libpng/libpng-src/libpng.3 index 12eb2e2de53..345aba1b51b 100644 --- a/Build/source/libs/libpng/libpng-src/libpng.3 +++ b/Build/source/libs/libpng/libpng-src/libpng.3 @@ -1,6 +1,6 @@ -.TH LIBPNG 3 "June 28, 2017" +.TH LIBPNG 3 "July 27, 2017" .SH NAME -libpng \- Portable Network Graphics (PNG) Reference Library 1.6.30 +libpng \- Portable Network Graphics (PNG) Reference Library 1.6.31 .SH SYNOPSIS \fB #include <png.h>\fP @@ -97,6 +97,8 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.6.30 \fBpng_byte png_get_header_version (png_const_structp \fIpng_ptr\fP\fB);\fP +\fBpng_uint_32 png_get_eXIf (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_bytep \fI*exif\fP\fB);\fP + \fBpng_uint_32 png_get_hIST (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_uint_16p \fI*hist\fP\fB);\fP \fBpng_uint_32 png_get_iCCP (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_charpp \fP\fIname\fP\fB, int \fP\fI*compression_type\fP\fB, png_bytepp \fP\fIprofile\fP\fB, png_uint_32 \fI*proflen\fP\fB);\fP @@ -347,6 +349,8 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.6.30 \fBvoid png_set_gray_to_rgb (png_structp \fIpng_ptr\fP\fB);\fP +\fBvoid png_set_eXIf (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_bytep \fIexif\fP\fB);\fP + \fBvoid png_set_hIST (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_16p \fIhist\fP\fB);\fP \fBvoid png_set_iCCP (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_const_charp \fP\fIname\fP\fB, int \fP\fIcompression_type\fP\fB, png_const_bytep \fP\fIprofile\fP\fB, png_uint_32 \fIproflen\fP\fB);\fP @@ -510,7 +514,7 @@ 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 1.6.30 - June 28, 2017 + libpng version 1.6.31 - July 27, 2017 Updated and distributed by Glenn Randers-Pehrson <glennrp at users.sourceforge.net> Copyright (c) 1998-2017 Glenn Randers-Pehrson @@ -521,7 +525,7 @@ libpng-manual.txt - A description on how to use and modify libpng Based on: - libpng versions 0.97, January 1998, through 1.6.30 - June 28, 2017 + libpng versions 0.97, January 1998, through 1.6.31 - July 27, 2017 Updated and distributed by Glenn Randers-Pehrson Copyright (c) 1998-2017 Glenn Randers-Pehrson @@ -1840,6 +1844,11 @@ in until png_read_end() has read the chunk data following the image. rowbytes = png_get_rowbytes(png_ptr, info_ptr); rowbytes - number of bytes needed to hold a row + This value, the bit_depth, color_type, + and the number of channels can change + if you use transforms such as + png_set_expand(). See + png_read_update_info(), below. signature = png_get_signature(png_ptr, info_ptr); @@ -1958,6 +1967,11 @@ png_set_rgb_to_gray()). the single transparent color for non-paletted images (PNG_INFO_tRNS) + png_get_eXIf(png_ptr, info_ptr, &exif); + (PNG_INFO_eXIf) + + exif - Exif profile (array of png_byte) + png_get_hIST(png_ptr, info_ptr, &hist); (PNG_INFO_hIST) @@ -3003,6 +3017,7 @@ your application instead of by libpng, you can use PNG_INFO_gAMA, PNG_INFO_sBIT, PNG_INFO_cHRM, PNG_INFO_PLTE, PNG_INFO_tRNS, PNG_INFO_bKGD, + PNG_INFO_eXIf, PNG_INFO_hIST, PNG_INFO_pHYs, PNG_INFO_oFFs, PNG_INFO_tIME, PNG_INFO_pCAL, PNG_INFO_sRGB, @@ -3602,6 +3617,11 @@ width, height, bit_depth, and color_type must be the same in each call. single transparent color for non-paletted images (PNG_INFO_tRNS) + png_set_eXIf(png_ptr, info_ptr, exif); + + hist - Exif profile (array of + png_byte) (PNG_INFO_eXIf) + png_set_hIST(png_ptr, info_ptr, hist); hist - histogram of palette (array of @@ -5710,6 +5730,11 @@ is an error. Previously this requirement of the PNG specification was not enforced, and the palette was always limited to 256 entries. An over-length PLTE chunk found in an input PNG is silently truncated. +Starting with libpng-1.6.31, the eXIf chunk is supported. Libpng does not +attempt to decode the Exif profile; it simply returns a byte array +containing the profile to the calling application which must do its own +decoding. + .SH XIII. Detecting libpng The png_get_io_ptr() function has been present since libpng-0.88, has never @@ -5893,7 +5918,7 @@ 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 1.6.30 are Y2K compliant. It is my belief that earlier +upward through 1.6.31 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 @@ -5995,7 +6020,7 @@ the first widely used release: ... 1.5.28 15 10528 15.so.15.28[.0] ... - 1.6.30 16 10630 16.so.16.30[.0] + 1.6.31 16 10631 16.so.16.31[.0] Henceforth the source version will match the shared-library minor and patch numbers; the shared-library major version number will be @@ -6051,7 +6076,7 @@ possible without all of you. Thanks to Frank J. T. Wojcik for helping with the documentation. -Libpng version 1.6.30 - June 28, 2017: +Libpng version 1.6.31 - July 27, 2017: Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc. Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net). @@ -6076,7 +6101,7 @@ this sentence. This code is released under the libpng license. -libpng versions 1.0.7, July 1, 2000 through 1.6.30, June 28, 2017 are +libpng versions 1.0.7, July 1, 2000 through 1.6.31, July 27, 2017 are Copyright (c) 2000-2002, 2004, 2006-2017 Glenn Randers-Pehrson, are derived from libpng-1.0.6, and are distributed according to the same disclaimer and license as libpng-1.0.6 with the following individuals @@ -6204,7 +6229,7 @@ files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31). Glenn Randers-Pehrson glennrp at users.sourceforge.net -June 28, 2017 +July 27, 2017 .\" end of man page |