[wxWidgets.git] / src / tiff / html / v3.4beta024.html

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<HEAD>
<TITLE>
Changes in TIFF v3.4beta024
</TITLE>
</HEAD>

<BODY>
<FONT FACE="Arial, Helvetica, Sans">

<BASEFONT SIZE=4>
<B><FONT SIZE=+3>T</FONT>IFF <FONT SIZE=+2>C</FONT>HANGE <FONT SIZE=+2>I</FONT>NFORMATION</B>
<BASEFONT SIZE=3>

<UL>
<HR SIZE=4 WIDTH=65% ALIGN=left>
<B>Current Version</B>: v3.4beta024<BR>
<B>Previous Version</B>: <A HREF=v3.4beta018.html>v3.4beta018</A><BR>
<B>Master FTP Site</B>: <A HREF="ftp://ftp.sgi.com/graphics/tiff">ftp.sgi.com (192.48.153.1), directory graphics/tiff</A><BR>
<HR SIZE=4 WIDTH=65% ALIGN=left>
</UL>

<P>
This document describes the changes made to the software between the
<I>previous</I> and <I>current</I> versions (see above).
If you don't find something listed here, then it was not done in this
timeframe, or it was not considered important enough to be mentioned.
The following information is located here:
<UL>
<LI><A HREF="#configure">Changes in the software configuration</A>
<LI><A HREF="#libtiff">Changes in libtiff</A>
<LI><A HREF="#tools">Changes in the tools</A>
<LI><A HREF="#man">Changes in the manual pages</A>
<LI><A HREF="#contrib">Changes in the contributed software</A>
</UL>

<P><HR WIDTH=65% ALIGN=right>

<A NAME="configure"><B><FONT SIZE=+3>C</FONT>HANGES IN THE SOFTWARE CONFIGURATION:</B></A>

<UL>
<LI>It is now possible to setup the software to build only the
   library; configure reconizes this is the intent when the
   <B>VERSION</B>, <B>tiff.alpha</B>, and <B>tif_version.c</B>
   files are in the local directory (i.e. ``.'')
<LI>configure no longer tries to setup HTML materials
<LI>include file directories needed in building the library are now
   specified with a <TT>DIRS_LIBINC</TT> config parameter
<LI>configure no longer checks for alternate compilers if <TT>CC</TT>
   is set; if the specified compiler is not found or is not appropriate
   the configuration procedure aborts
<LI>the <B>port.h</B> file generated by configure is now used only by
   the library and as such as have been moved to the <B>libtiff</B>
   directory
<LI>there is beginning support for building DSO's on systems other than IRIX
<LI>configure now verifies the JPEG and zlib directory pathnames by
   checking for well-known include files in these directories
<LI>configure no longer creates the <B>dist</B> directory needed only
   on SGI machines (for building SGI binary distributions)
<LI>a bug was fixed whereby configure would incorrectly set
    <TT>ENVOPTS</TT> when building the software with gcc under AIX
</UL>

<P><HR WIDTH=65% ALIGN=right>

<A NAME="libtiff"><B><FONT SIZE=+3>C</FONT>HANGES IN LIBTIFF:</B></A>

<UL>
<LI>two new typedefs were added to <B>tiff.h</TT>: <TT>int8</TT>
    and <TT>uint8</TT> for signed and unsigned 8-bit quantities,
    respectively; these are currently used only by
    programs in the <B>tools</B> directory
<LI>the <TT>BadFaxLines</TT>, <TT>CleanFaxData</TT>, and
    <TT>ConsecutiveBadFaxLines</B> tags are now supported with
    Group 4 compression
<LI>byte order is now correctly identified on 64-bit machines
<LI>a bug was fixed in the PackBits decoder where input data would
    appear short when a no-op run was present
<LI>a bug was fixed in calculations with very wide strips
<LI><TT>TIFFWriteEncodedStrip</TT> and <TT>TIFFWriteRawStrip</TT>
    were extended to support dynamically growing the number of
    strips in an image (must set <TT>ImageLength</TT> prior to
    making calls though)
<LI><TT>TIFFDefaultTileSize</TT> now rounds tile width and height
    up to a multiple of 16 pixels, as required by the TIFF 6.0 specification
<LI>the file <B>version.h</B> is now built by a new <B>mkversion</B>
    program; this was done for portability to non-UNIX systems
<LI>support was added for the Acorn RISC OS (from Peter Greenham)
<LI>the builtin codec table is now made <TT>const</TT> when compiling
    under VMS so that <B>libtiff</B> can be built as a shared library
<LI>support for the PowerPC Mac (from Ruedi Boesch)
<LI>support for Window NT/Window 95 (from Scott Wagner)
</UL>

<P><HR WIDTH=65% ALIGN=right>

<A NAME="tools"><B><FONT SIZE=+3>C</FONT>HANGES IN THE TOOLS:</B></A>

<UL>
<LI>the tools no longer include <B>port.h</B>
<LI>various portability fixes; mostly to eliminate implicit assumptions
    about how long <TT>int32</TT> data types are
<LI>PostScript Level II additions to <TT>tiff2ps</TT> from Bjorn Brox
<LI><TT>sgi2tiff</TT> now handles RGBA images
</UL>

<P><HR WIDTH=65% ALIGN=right>

<A NAME="man"><B><FONT SIZE=+3>C</FONT>HANGES IN THE MANUAL PAGES:</B></A>

<UL>
<LI>the documentation has been updated to reflect the current state of
    the software
<LI>some routines have been moved to different manual pages
    to group like-routines together
</UL>

<P><HR WIDTH=65% ALIGN=right>

<A NAME="contrib"><B><FONT SIZE=+3>C</FONT>HANGES IN THE CONTRIBUTED SOFTWARE:</B></A>

<UL>
<LI>support was added for the Acorn RISC OS (from Peter Greenham)
<LI>support for Windows NT/Windows 95 contributed for a previous
    version of this software was sort of incorporated (it's broken
    right now) (from Scott Wagner)
</UL>

<A HREF="index.html"><IMG SRC="images/back.gif"></A> TIFF home page.<BR>

<HR>

<ADDRESS>
<A HREF="sam.html">Sam Leffler</A> / <A HREF="mailto:sam@engr.sgi.com">sam@engr.sgi.com</A>
Last updated $Date: 1999/08/09 20:21:21 $.
</ADDRESS>

</BODY>
</HTML>
Commit	Line	Data
8414a40c VZ	1	<HTML>
	2	<HEAD>
	3	<TITLE>
	4	Changes in TIFF v3.4beta024
	5	</TITLE>
	6	</HEAD>
	7
	8	<BODY>
	9	<FONT FACE="Arial, Helvetica, Sans">
	10
	11	<BASEFONT SIZE=4>
	12	<B><FONT SIZE=+3>T</FONT>IFF <FONT SIZE=+2>C</FONT>HANGE <FONT SIZE=+2>I</FONT>NFORMATION</B>
	13	<BASEFONT SIZE=3>
	14
	15	<UL>
	16	<HR SIZE=4 WIDTH=65% ALIGN=left>
	17	<B>Current Version</B>: v3.4beta024<BR>
	18	<B>Previous Version</B>: <A HREF=v3.4beta018.html>v3.4beta018</A><BR>
	19	<B>Master FTP Site</B>: <A HREF="ftp://ftp.sgi.com/graphics/tiff">ftp.sgi.com (192.48.153.1), directory graphics/tiff</A><BR>
	20	<HR SIZE=4 WIDTH=65% ALIGN=left>
	21	</UL>
	22
	23	<P>
	24	This document describes the changes made to the software between the
	25	<I>previous</I> and <I>current</I> versions (see above).
	26	If you don't find something listed here, then it was not done in this
	27	timeframe, or it was not considered important enough to be mentioned.
	28	The following information is located here:
	29	<UL>
	30	<LI><A HREF="#configure">Changes in the software configuration</A>
	31	<LI><A HREF="#libtiff">Changes in libtiff</A>
	32	<LI><A HREF="#tools">Changes in the tools</A>
	33	<LI><A HREF="#man">Changes in the manual pages</A>
	34	<LI><A HREF="#contrib">Changes in the contributed software</A>
	35	</UL>
	36
	37	<P><HR WIDTH=65% ALIGN=right>
	38
	39	<A NAME="configure"><B><FONT SIZE=+3>C</FONT>HANGES IN THE SOFTWARE CONFIGURATION:</B></A>
	40
	41	<UL>
	42	<LI>It is now possible to setup the software to build only the
	43	library; configure reconizes this is the intent when the
	44	<B>VERSION</B>, <B>tiff.alpha</B>, and <B>tif_version.c</B>
	45	files are in the local directory (i.e. ``.'')
	46	<LI>configure no longer tries to setup HTML materials
	47	<LI>include file directories needed in building the library are now
	48	specified with a <TT>DIRS_LIBINC</TT> config parameter
	49	<LI>configure no longer checks for alternate compilers if <TT>CC</TT>
	50	is set; if the specified compiler is not found or is not appropriate
	51	the configuration procedure aborts
	52	<LI>the <B>port.h</B> file generated by configure is now used only by
	53	the library and as such as have been moved to the <B>libtiff</B>
	54	directory
	55	<LI>there is beginning support for building DSO's on systems other than IRIX
	56	<LI>configure now verifies the JPEG and zlib directory pathnames by
	57	checking for well-known include files in these directories
	58	<LI>configure no longer creates the <B>dist</B> directory needed only
	59	on SGI machines (for building SGI binary distributions)
	60	<LI>a bug was fixed whereby configure would incorrectly set
	61	<TT>ENVOPTS</TT> when building the software with gcc under AIX
	62	</UL>
	63
	64	<P><HR WIDTH=65% ALIGN=right>
65
66	<A NAME="libtiff"><B><FONT SIZE=+3>C</FONT>HANGES IN LIBTIFF:</B></A>
67
68	<UL>
69	<LI>two new typedefs were added to <B>tiff.h</TT>: <TT>int8</TT>
70	and <TT>uint8</TT> for signed and unsigned 8-bit quantities,
71	respectively; these are currently used only by
72	programs in the <B>tools</B> directory
73	<LI>the <TT>BadFaxLines</TT>, <TT>CleanFaxData</TT>, and
74	<TT>ConsecutiveBadFaxLines</B> tags are now supported with
75	Group 4 compression
76	<LI>byte order is now correctly identified on 64-bit machines
77	<LI>a bug was fixed in the PackBits decoder where input data would
78	appear short when a no-op run was present
79	<LI>a bug was fixed in calculations with very wide strips
80	<LI><TT>TIFFWriteEncodedStrip</TT> and <TT>TIFFWriteRawStrip</TT>
81	were extended to support dynamically growing the number of
82	strips in an image (must set <TT>ImageLength</TT> prior to
83	making calls though)
84	<LI><TT>TIFFDefaultTileSize</TT> now rounds tile width and height
85	up to a multiple of 16 pixels, as required by the TIFF 6.0 specification
86	<LI>the file <B>version.h</B> is now built by a new <B>mkversion</B>
87	program; this was done for portability to non-UNIX systems
88	<LI>support was added for the Acorn RISC OS (from Peter Greenham)
89	<LI>the builtin codec table is now made <TT>const</TT> when compiling
90	under VMS so that <B>libtiff</B> can be built as a shared library
91	<LI>support for the PowerPC Mac (from Ruedi Boesch)
92	<LI>support for Window NT/Window 95 (from Scott Wagner)
93	</UL>
94
95	<P><HR WIDTH=65% ALIGN=right>
96
97	<A NAME="tools"><B><FONT SIZE=+3>C</FONT>HANGES IN THE TOOLS:</B></A>
98
99	<UL>
100	<LI>the tools no longer include <B>port.h</B>
101	<LI>various portability fixes; mostly to eliminate implicit assumptions
102	about how long <TT>int32</TT> data types are
103	<LI>PostScript Level II additions to <TT>tiff2ps</TT> from Bjorn Brox
104	<LI><TT>sgi2tiff</TT> now handles RGBA images
105	</UL>
106
107	<P><HR WIDTH=65% ALIGN=right>
108
109	<A NAME="man"><B><FONT SIZE=+3>C</FONT>HANGES IN THE MANUAL PAGES:</B></A>
110
111	<UL>
112	<LI>the documentation has been updated to reflect the current state of
113	the software
114	<LI>some routines have been moved to different manual pages
115	to group like-routines together
116	</UL>
117
118	<P><HR WIDTH=65% ALIGN=right>
119
120	<A NAME="contrib"><B><FONT SIZE=+3>C</FONT>HANGES IN THE CONTRIBUTED SOFTWARE:</B></A>
121
122	<UL>
123	<LI>support was added for the Acorn RISC OS (from Peter Greenham)
124	<LI>support for Windows NT/Windows 95 contributed for a previous
125	version of this software was sort of incorporated (it's broken
126	right now) (from Scott Wagner)
127	</UL>
128
129	<A HREF="index.html"><IMG SRC="images/back.gif"></A> TIFF home page.<BR>
130
131	<HR>
132
133	<ADDRESS>
134	<A HREF="sam.html">Sam Leffler</A> / <A HREF="mailto:sam@engr.sgi.com">sam@engr.sgi.com</A>
135	Last updated $Date: 1999/08/09 20:21:21 $.
136	</ADDRESS>
137
138	</BODY>
139	</HTML>