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4 Changes in TIFF v3.4beta007 |
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6 </HEAD> |
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7 |
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9 <FONT FACE="Arial, Helvetica, Sans"> |
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11 <BASEFONT SIZE=4> |
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12 <B><FONT SIZE=+3>T</FONT>IFF <FONT SIZE=+2>C</FONT>HANGE <FONT SIZE=+2>I</FONT>NFORMATION</B> |
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13 <BASEFONT SIZE=3> |
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14 |
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15 <UL> |
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16 <HR SIZE=4 WIDTH=65% ALIGN=left> |
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17 <B>Current Version</B>: v3.4beta007<BR> |
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18 <B>Previous Version</B>: v3.4beta004<BR> |
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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> |
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20 <HR SIZE=4 WIDTH=65% ALIGN=left> |
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21 </UL> |
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22 |
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23 <P> |
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24 This document describes the changes made to the software between the |
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25 <I>previous</I> and <I>current</I> versions (see above). |
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26 If you don't find something listed here, then it was not done in this |
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27 timeframe, or it was not considered important enough to be mentioned. |
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28 The following information is located here: |
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29 <UL> |
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30 <LI><A HREF="#configure">Changes in the software configuration</A> |
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31 <LI><A HREF="#libtiff">Changes in libtiff</A> |
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32 <LI><A HREF="#port">Changes in the portability support</A> |
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33 <LI><A HREF="#tools">Changes in the tools</A> |
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34 </UL> |
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35 |
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36 <P><HR WIDTH=65% ALIGN=right> |
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37 |
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38 <A NAME="configure"><B><FONT SIZE=+3>C</FONT>HANGES IN THE SOFTWARE CONFIGURATION:</B></A> |
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39 |
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40 <UL> |
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41 <LI>bit order was corrected for Pentium systems |
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42 <LI>a new define, <TT>HOST_BIGENDIAN</TT>, was added for code that |
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43 wants to statically use information about native cpu byte order |
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44 </UL> |
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45 |
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46 <P><HR WIDTH=65% ALIGN=right> |
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47 |
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48 <A NAME="libtiff"><B><FONT SIZE=+3>C</FONT>HANGES IN LIBTIFF:</B></A> |
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49 |
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50 <UL> |
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51 <LI>the G3/G4 decoder was replaced by a new one that is faster and |
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52 has smaller state tables |
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53 <LI>Niles Ritter's client tag extension hooks were added |
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54 <LI>a new routine <TT>TIFFCurrentDirOffset</TT> was added for |
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55 applications that want to find out the file offset of a TIFF directory |
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56 <LI>the calculation of the number of strips in an image was corected |
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57 for images with certain esoteric configurations |
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58 <LI>a potential memory leak (very unlikely) was plugged |
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59 <LI>the <TT>TIFFReadRGBAImage</TT> support was completely rewritten |
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60 and new, more flexible support was added for reading images into |
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61 a fixed-format raster |
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62 <LI>YCbCr to RGB conversion done in the <TT>TIFFReadRGBAImage</TT> support |
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63 was optimized |
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64 <LI>a bug in JPEG support calculation of strip size was corrected |
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65 <LI>the LZW decoder was changed to initialize the code table to zero |
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66 to lessen potential problems that arise when invalid data is decoded |
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67 <LI><B>tiffcomp.h</B> is now aware of OS/2 |
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68 <LI>some function prototypes in <B>tiffio.h</B> and <B>tiffiop.h</B> |
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69 that contained parameter |
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70 names have been changed to avoid complaints from certain compilers |
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71 </UL> |
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72 |
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73 <P><HR WIDTH=65% ALIGN=right> |
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74 |
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75 <A NAME="port"><B><FONT SIZE=+3>C</FONT>HANGES IN THE PORTABILITY SUPPORT:</B></A> |
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76 |
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77 <UL> |
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78 <LI><B>Makefile.in</B> has been corrected to use the parameters |
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79 chosen by the configure script |
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80 </UL> |
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81 |
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82 <P><HR WIDTH=65% ALIGN=right> |
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83 |
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84 <A NAME="tools"><B><FONT SIZE=+3>C</FONT>HANGES IN THE TOOLS:</B></A> |
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85 |
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86 <UL> |
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87 <LI><TT>fax2ps</TT> has been rewritten and moved over from the user |
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88 contributed software |
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89 <LI>an uninitialized variable in <TT>pal2rgb</TT> has been fixed |
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90 <LI><TT>ras2tiff</TT> now converts 24-bit RGB raster data so that |
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91 samples are written in the proper order |
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92 <LI><TT>tiff2ps</TT> has been updated to include fixes |
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93 and enhancements from Alberto Accomazzi |
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94 <LI><TT>tiffcp</TT> now has a <TT>-o</TT> option to select a directory |
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95 by file offset |
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96 <LI><TT>tiffinfo</TT> is now capable of displaying the raw undecoded |
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97 image data in a file |
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98 <LI><TT>tiffgt</TT> has been rewritten to use the new <TT>TIFFRGBAImage</TT> |
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99 support and to handle multiple files |
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100 </UL> |
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101 |
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102 <A HREF="index.html"><IMG SRC="images/back.gif"></A> TIFF home page.<BR> |
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103 |
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104 <HR> |
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105 |
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106 <ADDRESS> |
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107 <A HREF="sam.html">Sam Leffler</A> / <A HREF="mailto:sam@engr.sgi.com">sam@engr.sgi.com</A> |
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108 Last updated $Date: 1999/08/09 20:21:21 $. |
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109 </ADDRESS> |
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110 |
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112 </HTML> |