From owner-png-announce@ccrc.wustl.edu Sat Oct 16 06:19:17 1999 Received: from ccrc.wustl.edu (cashew.ccrc.wustl.edu [128.252.169.100]) by swrinde.nde.swri.edu (8.9.3/8.9.3) with ESMTP id GAA23365; Sat, 16 Oct 1999 06:19:16 -0500 (CDT) Received: (from majordom@localhost) by ccrc.wustl.edu (8.9.1b+Sun/8.9.1) id GAA24819; Sat, 16 Oct 1999 06:18:42 -0500 (CDT) X-Authentication-Warning: cashew.ccrc.wustl.edu: majordom set sender to owner-png-announce@ccrc.wustl.edu using -f Received: from mail.rdc1.md.home.com (ha1.rdc1.md.home.com [24.2.2.66]) by ccrc.wustl.edu (8.9.1b+Sun/8.9.1) with ESMTP id GAA24749; Sat, 16 Oct 1999 06:15:28 -0500 (CDT) Received: from cc170083-a.abdn1.md.home.com ([24.7.161.22]) by mail.rdc1.md.home.com (InterMail v4.01.01.00 201-229-111) with SMTP id <19991016111524.LPYG22020.mail.rdc1.md.home.com@cc170083-a.abdn1.md.home.com>; Sat, 16 Oct 1999 04:15:24 -0700 Message-Id: <3.0.6.32.19991016071356.00e8cb60@netmail.home.com> X-Sender: glennrp@netmail.home.com X-Mailer: QUALCOMM Windows Eudora Light Version 3.0.6 (32) Date: Sat, 16 Oct 1999 07:13:56 -0400 To: png-announce@ccrc.wustl.edu From: Glenn Randers-Pehrson Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-png-announce@ccrc.wustl.edu Precedence: bulk Reply-To: PNG List [replies to png-implement, please] libpng-1.0.5 has been uploaded to ftp://swrinde.nde.swri.edu/pub/png/src/ There are a lot of minor changes, but the main changes are the addition of assembler code for interlacing and filtering on MMX platforms, the addition of a "contrib" directory that contains the demo code from Greg's book, cleanup of some of the makefiles, and revision of the pngtest program. Changes since the last public release (1.0.3; there was no public release of version 1.0.4): 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 free'ing 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 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 and pngset.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 makefile.beo for BEOS on X86, contributed by Sander Stok. Replaced 2147483647L several places with PNG_MAX_UINT macro, defined in png.h Changed leading blanks to tabs in all makefiles. 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"). 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. Added a demo read_user_transform_fn that examines the row filters in pngtest.c Define PNG_ALWAYS_EXTERN in pngconf.h if __STDC__ is defined Made several minor corrections to pngtest.c Changed "hptr += 16L" to "hptr = hptr + 16L" in pngmem.c for Turbo 3.0 Renamed the makefiles with longer but more user friendly extensions. Define PNG_USE_PNGVCRD in makefile.vcawin32, to get MMX assembler code. 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. Added a CPU timing report to pngtest.c (enabled by defining PNGTEST_TIMING) Increase max_pixel_depth in pngrutil.c if a user transform needs it. Added a comment in makefile.linux warning about buggy -O3 in pgcc 2.95.1 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. Added a copy of pngnow.png to the distribution. Surrounded example.c code with #if 0 .. #endif to prevent people from inadvertently trying to compile it. 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. Send comments/corrections/commendations to png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu Glenn R-P -- Send the message body "help" to png-announce-request@ccrc.wustl.edu From owner-png-announce@ccrc.wustl.edu Sat Oct 30 09:50:45 1999 Received: from ccrc.wustl.edu (cashew.ccrc.wustl.edu [128.252.169.100]) by swrinde.nde.swri.edu (8.9.3/8.9.3) with ESMTP id JAA19593; Sat, 30 Oct 1999 09:50:44 -0500 (CDT) Received: (from majordom@localhost) by ccrc.wustl.edu (8.9.1b+Sun/8.9.1) id JAA06634; Sat, 30 Oct 1999 09:47:03 -0500 (CDT) X-Authentication-Warning: cashew.ccrc.wustl.edu: majordom set sender to owner-png-announce@ccrc.wustl.edu using -f Received: from smtp3.xs4all.nl (smtp3.xs4all.nl [194.109.127.49]) by ccrc.wustl.edu (8.9.1b+Sun/8.9.1) with ESMTP id JAA06626; Sat, 30 Oct 1999 09:47:02 -0500 (CDT) Received: from gerard3 (dc2-isdn749.dial.xs4all.nl [194.109.150.237]) by smtp3.xs4all.nl (8.9.3/8.9.3) with SMTP id QAA13257; Sat, 30 Oct 1999 16:46:57 +0200 (CEST) Message-Id: <199910301446.QAA13257@smtp3.xs4all.nl> From: "Gerard Juyn" To: mpng-list@ccrc.wustl.edu Date: Sat, 30 Oct 1999 16:48:12 +0100 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: MNGeye 1.31 and eMNGma 0.20 CC: png-announce@ccrc.wustl.edu, rocq@att.net X-mailer: Pegasus Mail for Win32 (v3.01a) Sender: owner-png-announce@ccrc.wustl.edu Precedence: bulk Reply-To: PNG List To all, I won't keep you in suspense any longer. It's here. The world's first MNG animation shop: "eMNGma". It's a preview, and there's still a lot of work to be done, but it seems stable enough to allow for some nasty comments from you guys. Find out more at: http://www.3-t.com/3-T/products/emngma/Homepage.html I don't link these pages from my main site yet, because I wanted the cracks to have a first crack at it.... You may also want to grab the latest MNGeye. Previous versions do not display the animations created by eMNGma correctly, due to a few small decoder bugs: http://www.3-t.com/3-T/products/mngi/Homepage.html If you set an "open" association for the .mng extension (through Windows explorer) to MNGeye, hitting the "deploy" option in eMNGma will not only save the animation as a MNG, but also fire-up the good old viewer, so you can have a look at the intricacies of the created file. Please fire away at it. All comments, bug-reports, feature-requests, remarks, opinions, raves, etc, etc, will be honoured, considered and appreciated. Gerard Juyn http://www.3-t.com (Rich: MNGeye contains the test-phase of the png16 code. You may want to have a look at it if you can find out how. Or else let me know...) -- Send the message body "help" to png-announce-request@ccrc.wustl.edu