/usr/share/doc/png-definitive-guide/html/chapter03.html

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
  "http://www.w3.org/TR/html4/loose.dtd">
<HTML>
<HEAD>
<TITLE>Applications: Image Viewers (PNG: The Definitive Guide)</TITLE>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">

<!-- http://www.w3.org/TR/REC-CSS2/box.html -->
<STYLE TYPE="text/css">
  P { margin-bottom: 0em }
  UL {
    margin-bottom: 0em;
    margin-top: 0em;
    list-style: disc;
  }
  LI {
    padding: 0px 0px 0px 0px;
    margin: 0px 0px 0px 0px;
  }
</STYLE>

<LINK REV="made" HREF="http://pobox.com/~newt/greg_contact.html">
<!--  Copyright (c) 1999 O'Reilly and Associates.  -->
<!--  Copyright (c) 2002-2006 Greg Roelofs.  -->
</HEAD>

<body bgcolor="#ffffff" text="#000000">


<hr> <!-- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- -->

<a href="chapter02.html"><img width=24 height=13 border=0 align="left"
 src="images/prev.png" alt="&lt;-"></a>

<a href="chapter04.html"><img width=24 height=13 border=0 align="right"
 src="images/next.png" alt="-&gt;"></a>

<div align="center">
  <a href="chapter02.html"><font size="-1" color="#000000"
   ><b>PREVIOUS</b></font></a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a
     href="toc.html"><font size="-1" color="#000000"
   ><b>CONTENTS</b></font></a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a
     href="chapter04.html"><font size="-1" color="#000000"
   ><b>NEXT</b></font></a>
</div>

<hr> <!-- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- -->


<h1 class="chapter">Chapter 3. Applications: Image Viewers</h1>

<div class="htmltoc"><h4 class="tochead">Contents:</h4><p>
<a href="#png.ch03.div.1">3.1. Windows 95/98/NT</a><br />
<a href="#png.ch03.div.2">3.2. Windows 3.x</a><br />
<a href="#png.ch03.div.3">3.3. VMS</a><br />
<a href="#png.ch03.div.4">3.4. Unix</a><br />
<a href="#png.ch03.div.5">3.5. OS/2</a><br />
<a href="#png.ch03.div.6">3.6. Macintosh</a><br />
<a href="#png.ch03.div.7">3.7. Java</a><br />
<a href="#png.ch03.div.8">3.8. DOS</a><br />
<a href="#png.ch03.div.9">3.9. BeOS</a><br />
<a href="#png.ch03.div.10">3.10. Atari</a><br />
<a href="#png.ch03.div.11">3.11. Amiga</a><br />
<a href="#png.ch03.div.12">3.12. Acorn RISC OS</a><br />
</p></div>


<p><a name="INDEX-183" />Unlike, say, image converters or editors, there is generally not a great
deal to say about a PNG-supporting image viewer other than that
it does, in fact, display PNG images. Gamma correction is the primary
``special'' feature one would like; color correction and the ability to
view text annotations would be nice as well, but the reality is that most
image viewers concentrate more on speed and breadth of support for different
image formats and display depths than on features specific to any one format.</p>


<p>The list of viewers presented here is likewise long on breadth and
short on specifics, simply because testing every viewer for every
platform--or even a reasonable fraction of them--is impractical.
Gamma and text support are noted wherever known, as is the ability to
convert to or from other formats, but this is primarily a laundry list
of viewers, sorted by platform. The current version of each, as of
this writing, is listed wherever possible.</p>


<!--    GRR POST-1999 UPDATE    -->
<font color="#006600">

<p>
<em>It is even less practical to test every one in 2003 than it was in 1999;
the <a href="http://www.libpng.org/pub/png/">PNG web site</a> now lists more
than 90 additional viewers that either did not support or were not known to
support PNG when the first edition went to press:</em>
</p>

<p>
<blockquote>
<pre><a href=
    "http://www.libpng.org/pub/png/pngapvw.html"
    >http://www.libpng.org/pub/png/pngapvw.html</a></pre>
</blockquote>
</p>

<p>
<em>The web page is updated regularly, but even so, it is guaranteed to
be incomplete; PNG support is no longer remarkable, and new viewers are
released all the time, usually without any mention of specific image formats.
These days almost every image viewer (with the exception of some--but not
all--viewers for embedded devices) can be assumed to support PNG.</em>
</p>

</font>
<!--    END GRR POST-1999 UPDATE    -->


<p>In addition to the viewing applications listed in the following
discussion, two demo viewers are described in
<a href="chapter13.html">Chapter 13, "Reading PNG Images"</a>, and
<a href="chapter14.html">Chapter 14, "Reading PNG Images Progressively"</a>.
They currently run under 32-bit Windows and Unix/X, and
full source code is freely available. One other viewing application
is also worth mentioning: Aladdin's Ghostscript, currently at version
5.50, which is (or has in the past been) available for every platform
listed here. Ghostscript is a viewer for PostScript and Acrobat (PDF)
files, but it can write PNG images and is therefore a special case.</p>


<div class="sect1"><a name="png.ch03.div.1" />
<h2 class="sect1">3.1. Windows 95/98/NT</h2>


<a name="INDEX-184" /><dl>
<dt><b><em class="emphasis">ACDSee32</em></b></dt><dd>

<p><a name="INDEX-185" />Version 2.3, ACD Systems. Full gamma support; progressive
display of interlaced images (sparse method); older versions ignored the
background chunk and incorrectly displayed grayscale images with alpha channels.
Not tested recently.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.acdsystems.com/pages/acdsee32.htm">http://www.acdsystems.com/pages/acdsee32.htm</a></pre></blockquote><dl>
<dt><b><em class="emphasis">AI Picture Explorer</em></b></dt><dd>

<p><a name="INDEX-186" />Version 1.2, Applied Insights. Conversion
capabilities; can autogenerate web pages with thumbnail images.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://users.aol.com/lgozum2/">http://users.aol.com/lgozum2/</a></pre></blockquote><dl>
<dt><b><em class="emphasis">AI Picture Utility</em></b></dt><dd>

<p><a name="INDEX-187" />Version 2.5, Applied Insights. Conversion
capabilities.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://users.aol.com/aipict/aipict.html">http://users.aol.com/aipict/aipict.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">Alter Image 32</em></b></dt><dd>

<p><a name="INDEX-188" />Version 1.0a, Nun's Meadow Software. Conversion
capabilities.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://web2.airmail.net/nunnally/altimg.htm">http://web2.airmail.net/nunnally/altimg.htm</a></pre></blockquote><dl>
<dt><b><em class="emphasis">CPIC</em></b></dt><dd>

<p><a name="INDEX-189" />Version 1.80 (``build 273''), Photodex. Conversion capabilities;
claims gamma support. CPIC is also sometimes known as CompuPic.
<a name="INDEX-190" /></p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.photodex.com/products/cpic/cpic_home.html">http://www.photodex.com/products/cpic/cpic_home.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">CryptaPix</em></b></dt><dd>

<p><a name="INDEX-191" />Version 2.02, Briggs Softworks. Encryption capabilities.
Versions prior to 2.0 were also available for Windows 3.x.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.briggsoft.com/cpix.htm">http://www.briggsoft.com/cpix.htm</a></pre></blockquote><dl>
<dt><b><em class="emphasis">DeBabelizer Pro</em></b></dt><dd>

<p><a name="INDEX-192" />Version 4.5, Equilibrium. Conversion capabilities;
claims gamma support.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.equilibrium.com/ProductInfo/DBPro/ProNewFeatures.html">http://www.equilibrium.com/ProductInfo/DBPro/ProNewFeatures.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">Drag And View</em></b></dt><dd>

<p><a name="INDEX-193" />Version 4.0c, Canyon Software. Conversion capabilities.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.canyonsw.com/dnv.htm">http://www.canyonsw.com/dnv.htm</a></pre></blockquote><dl>
<dt><b><em class="emphasis">FmView</em></b></dt><dd>

<p><a name="INDEX-194" />Version 2.0, WinCorner. Integrates into Windows File Manager
and Explorer.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.wincorner.com/home/fmview.html">http://www.wincorner.com/home/fmview.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">GIF Construction Set</em></b></dt><dd>

<p><a name="INDEX-195" />Version 1.0Q, Alchemy Mindworks.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.mindworkshop.com/alchemy/gifcon.html">http://www.mindworkshop.com/alchemy/gifcon.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">GrafCat</em></b></dt><dd>

<p><a name="INDEX-196" />Alchemy Mindworks.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.mindworkshop.com/alchemy/gctw.html">http://www.mindworkshop.com/alchemy/gctw.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">Graphic Viewer</em></b></dt><dd>

<p><a name="INDEX-197" />Version 1.0, PrimaSoft PC.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.primasoft.com/32org/32gview.htm">http://www.primasoft.com/32org/32gview.htm</a></pre></blockquote><dl>
<dt><b><em class="emphasis">Graphic Workshop</em></b></dt><dd>

<p><a name="INDEX-198" />Version 1.1Y, Alchemy Mindworks. Conversion
capabilities; no gamma support in older versions. Not tested recently.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.mindworkshop.com/alchemy/gww.html">http://www.mindworkshop.com/alchemy/gww.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">HiJaak PRO</em></b></dt><dd>

<p><a name="INDEX-199" />Version 4.5, IMSI. Conversion capabilities, but apparently
not to PNG. HiJaak was originally developed by Inset, which was acquired by
Quarterdeck, which finally sold the product to IMSI.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.imsisoft.com/hijaak/hijaak.html">http://www.imsisoft.com/hijaak/hijaak.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">Imagenation</em></b></dt><dd>

<p><a name="INDEX-200" />Version 5.0, Spicer Corporation. Conversion capabilities.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.spicer.com/product/imagenation/imagenation_home.htm">http://www.spicer.com/product/imagenation/imagenation_home.htm</a></pre></blockquote><dl>
<dt><b><em class="emphasis">ImgViewer/32</em></b></dt><dd>

<p><a name="INDEX-201" />Version 2.31, Arcata Pet Software.<a href="#FOOTNOTE-21">[21]</a>


Conversion capabilities; claims gamma support. Related software includes
WWPlus32 (multiformat wallpaper manager) and WWSaver32 (image-based screensaver).</p><blockquote class="footnote">


<a name="FOOTNOTE-21" />
<p>[21] Wacky fact: Arcata Pet Software's name comes from the associated pet store
and supply shop.</p>


</blockquote></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.arcatapet.com/imgv32.html">http://www.arcatapet.com/imgv32.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">IrfanView32</em></b></dt><dd>

<p><a name="INDEX-202" />Version 2.90, Skiljan Irfan. Conversion capabilities.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://stud1.tuwien.ac.at/~e9227474/">http://stud1.tuwien.ac.at/~e9227474/</a></pre></blockquote><dl>
<dt><b><em class="emphasis">KeyView Pro</em></b></dt><dd>

<p><a name="INDEX-203" />Version 6.0, Verity. Conversion and Netscape plug-in
capabilities. FTP Software sold KeyView to Verity late in 1997.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.keyview.com/">http://www.keyview.com/</a></pre></blockquote><dl>
<dt><b><em class="emphasis">Makaha</em></b></dt><dd>

<p><a name="INDEX-204" />Version 1.6, Brandyware Software. Conversion capabilities.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://members.aol.com/brandyware/makaha.htm">http://members.aol.com/brandyware/makaha.htm</a></pre></blockquote><dl>
<dt><b><em class="emphasis">Photonyx Viewer</em></b></dt><dd>

<p><a name="INDEX-205" />Version 2.0, Chrome Imaging.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.chrome-imaging.com/pview.html">http://www.chrome-imaging.com/pview.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">PicaView32</em></b></dt><dd>

<p><a name="INDEX-206" />Version 1.3, ACD Systems. Integrates into Windows 
Explorer menus.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.acdsystems.com/pages/picaview32.htm">http://www.acdsystems.com/pages/picaview32.htm</a></pre></blockquote><dl>
<dt><b><em class="emphasis">PicViewer</em></b></dt><dd>

<p><a name="INDEX-207" />Version 1.81, Andrew Anoshkin.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.strongsoftware.net/dronix/picview.html">http://www.strongsoftware.net/dronix/picview.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">PixelGraphicLibrary demo viewer</em></b></dt><dd>

<p><a name="INDEX-208" />Version 1.0 beta 5, Peter Beyersdorf.
Principally an imaging toolkit, but includes a demo viewer app.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.beyersdorf.com/pgraphe.html">http://www.beyersdorf.com/pgraphe.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">PixFolio</em></b></dt><dd>

<p><a name="INDEX-209" />Version 2, ACK Software. Conversion capabilities.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.frontpageaccess.com/acksoft/">http://www.frontpageaccess.com/acksoft/</a></pre></blockquote><dl>
<dt><b><em class="emphasis">PolyView</em></b></dt><dd>

<p><a name="INDEX-210" />Version 3.10, Polybytes. Conversion capabilities.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.polybytes.com/">http://www.polybytes.com/</a></pre></blockquote><dl>
<dt><b><em class="emphasis">QuickTime PictureViewer</em></b></dt><dd>

<p><a name="INDEX-211" />Version 3.0, Apple Computer. Full gamma
and color-correction support via ColorSync; claims full alpha support (but
not clear in what form). PictureViewer completely supersedes the Tiny
Viewer demo app that Sam Bushell included with his QuickTime 2.5
PNG-Importer. Note that any QuickTime-aware application (even Apple's
SimpleText) can be used to view PNG images if QT3 is installed.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.apple.com/quicktime/">http://www.apple.com/quicktime/</a></pre></blockquote><dl>
<dt><b><em class="emphasis">Quick View Plus</em></b></dt><dd>

<p><a name="INDEX-212" />Version 5.0, Jasc Software. This is software with <em class="emphasis">history</em>.
Originally developed by Mastersoft as Viewer 95, both it and
Mastersoft were acquired by Frame, which was almost immediately
acquired by Adobe. The program and associated technologies were
rereleased as Adobe File Utilities by Mastersoft in 1996, then sold to
Inso in 1997. Inso gave the software its current name, but apparently
sold or licensed the rights to the Windows version to Jasc in 1998.
Inso still sells the Unix version and possibly the Windows version,
but apparently only to government and ``enterprise'' customers.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.jasc.com/qvp.html">http://www.jasc.com/qvp.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">Riptide Photo Studio</em></b></dt><dd>

<p><a name="INDEX-213" />Version 1.0, Vorton Technologies. Conversion
capabilities.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.vorton.com/riptide.htm">http://www.vorton.com/riptide.htm</a></pre></blockquote><dl>
<dt><b><em class="emphasis">Showcase</em></b></dt><dd>

<p><a name="INDEX-214" />Version 1.2.00, CQuick Technologies.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.cquick.com/Showcase/">http://www.cquick.com/Showcase/</a></pre></blockquote><dl>
<dt><b><em class="emphasis">ThumbsPlus</em></b></dt><dd>

<p><a name="INDEX-215" />Version 3.30, Cerious Software. Conversion capabilities,
but without the ability to write interlaced or transparent PNGs; possibly full
gamma support; can autogenerate web pages with thumbnail images.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.thumbsplus.com/">http://www.thumbsplus.com/</a></pre></blockquote><dl>
<dt><b><em class="emphasis">VidFun</em></b></dt><dd>

<p><a name="INDEX-216" />Version 3.6, Lawrence Gozum. Conversion capabilities.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://users.aol.com/lgozum/vidfun.htm">http://users.aol.com/lgozum/vidfun.htm</a></pre></blockquote><dl>
<dt><b><em class="emphasis">WebGraphics Optimizer</em></b></dt><dd>

<p><a name="INDEX-217" />Version 4.0, Plenio Software Solutions.
Conversion capabilities; Version 2.x had broken support for two-bit images,
no gamma support, and no control over compression level or filtering (to the
extent that it would happily write an output file larger than the input).
Not tested recently.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.webopt.com/">http://www.webopt.com/</a></pre></blockquote>
</div>

















</div>
<div class="sect1"><a name="png.ch03.div.2" />
<h2 class="sect1">3.2. Windows 3.x</h2>


<dl>
<dt><b><em class="emphasis">ACDSee16</em></b></dt><dd>

<p><a name="INDEX-218" />Version 2.2, ACD Systems. (See also ACDSee32 earlier.)</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.acdsystems.com/pages/acdsee16.htm">http://www.acdsystems.com/pages/acdsee16.htm</a></pre></blockquote><dl>
<dt><b><em class="emphasis">CPIC</em></b></dt><dd>

<p><a name="INDEX-219" />Version 1.80 (``build 273''), Photodex. Conversion capabilities;
claims gamma support. CPIC is also sometimes known as CompuPic.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.photodex.com/products/cpic/cpic_home.html">http://www.photodex.com/products/cpic/cpic_home.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">Drag And View</em></b></dt><dd>

<p><a name="INDEX-220" />``Gold'' version (possibly 1.3), Canyon Software. If the download
filename, <em class="emphasis">dragvu13.zip</em>, can be trusted, and if the version
numbering is the same as that for the 32-bit Windows version discussed
earlier, then the 16-bit version may not include PNG support after
all.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.canyonsw.com/dnv.htm">http://www.canyonsw.com/dnv.htm</a></pre></blockquote><dl>
<dt><b><em class="emphasis">GIF Construction Set</em></b></dt><dd>

<p><a name="INDEX-221" />Version 1.0Q, Alchemy Mindworks.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.mindworkshop.com/alchemy/gifcon.html">http://www.mindworkshop.com/alchemy/gifcon.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">GrafCat</em></b></dt><dd>

<p><a name="INDEX-222" />Alchemy Mindworks.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.mindworkshop.com/alchemy/gctw.html">http://www.mindworkshop.com/alchemy/gctw.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">Graphic Workshop</em></b></dt><dd>

<p><a name="INDEX-223" />Version 1.1Y, Alchemy Mindworks. Conversion
capabilities; no gamma support in older versions. Not tested recently.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.mindworkshop.com/alchemy/gww.html">http://www.mindworkshop.com/alchemy/gww.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">GraphX Viewer</em></b></dt><dd>

<p><a name="INDEX-224" />Version 1.51 only, Group 42. Conversion capabilities;
full gamma support. Group 42 is the company for which Guy Schalnat worked
while he wrote the first version of libpng. Unfortunately, there has been no
further PNG-related work since he left.</p></dd>



<dt><b><em class="emphasis">Imagenation</em></b></dt><dd>

<p><a name="INDEX-225" />Version 5.0, Spicer Corporation. Conversion capabilities.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.spicer.com/product/imagenation/imagenation_home.htm">http://www.spicer.com/product/imagenation/imagenation_home.htm</a></pre></blockquote><dl>
<dt><b><em class="emphasis">KeyView Pro</em></b></dt><dd>

<p><a name="INDEX-226" />Version 6.0, Verity. Conversion and Netscape plug-in
capabilities. FTP Software sold KeyView to Verity late in 1997.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.keyview.com/">http://www.keyview.com/</a></pre></blockquote><dl>
<dt><b><em class="emphasis">PicaView16</em></b></dt><dd>

<p><a name="INDEX-227" />Version 1.6, ACD Systems. Integrates into Windows 
File Manager.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.acdsystems.com/pages/picaview16.htm">http://www.acdsystems.com/pages/picaview16.htm</a></pre></blockquote><dl>
<dt><b><em class="emphasis">PixFolio</em></b></dt><dd>

<p><a name="INDEX-228" />Version 2, ACK Software. Conversion capabilities.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.frontpageaccess.com/acksoft/">http://www.frontpageaccess.com/acksoft/</a></pre></blockquote><dl>
<dt><b><em class="emphasis">QuickShow Lite</em></b></dt><dd>

<p><a name="INDEX-229" />Alchemy Mindworks.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.mindworkshop.com/alchemy/qshow.html">http://www.mindworkshop.com/alchemy/qshow.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">Quick View Plus</em></b></dt><dd>

<p><a name="INDEX-230" />Version 5.0, Jasc Software. See its earlier listing in the 32-bit
Windows section for a brief history.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.jasc.com/qvp.html">http://www.jasc.com/qvp.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">ThumbsPlus</em></b></dt><dd>

<p><a name="INDEX-231" />Version 3.30, Cerious Software. Conversion capabilities,
but without the ability to write interlaced or transparent PNGs; possibly full
gamma support; can autogenerate web pages with thumbnail images.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.thumbsplus.com/">http://www.thumbsplus.com/</a></pre></blockquote><dl>
<dt><b><em class="emphasis">VidFun</em></b></dt><dd>

<p><a name="INDEX-232" />Version 3.6, Lawrence Gozum. Conversion capabilities.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://users.aol.com/lgozum/vidfun.htm">http://users.aol.com/lgozum/vidfun.htm</a></pre></blockquote><dl>
<dt><b><em class="emphasis">Viewer Pro!</em></b></dt><dd>

<p><a name="INDEX-233" />Version 4.2, Brandyware Software. Conversion capabilities.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://members.aol.com/brandyware/viewer.htm">http://members.aol.com/brandyware/viewer.htm</a></pre></blockquote>


















</div>
<div class="sect1"><a name="png.ch03.div.3" />
<h2 class="sect1">3.3. VMS</h2>


<a name="INDEX-234" />
<a name="INDEX-235" />

<p>The selection of PNG-supporting image viewers for VMS (or OpenVMS nowadays)
is rather limited; indeed, I am aware of only two viewers, both ports of
popular Unix/X viewers:</p>


<dl>
<dt><b><em class="emphasis">ImageMagick display</em></b></dt><dd>


<p><a name="INDEX-236" />Version 4.2.0, John Cristy. Conversion
capabilities (mostly via accompanying <em class="emphasis">convert</em> utility); full gamma
support; reported to include chromaticity support; partial MNG support. There
is also a 32-bit Windows port, but it requires a third-party X server to run.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.wizards.dupont.com/cristy/ImageMagick.html">http://www.wizards.dupont.com/cristy/ImageMagick.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">XV</em></b></dt><dd>

<p><a name="INDEX-237" />Version 3.10a, John Bradley. Conversion capabilities, including
interlacing support but without the ability to write transparent PNGs; full
gamma support; preserves text information. XV is widely considered to be the
preeminent image viewer for the X Window System.
The only major drawback is that it was last released in December 1994, five
days before the CompuServe/Unisys GIF announcement that began the PNG saga,
and therefore does not include PNG support in the default distribution.
Fortunately, it is available as C source code, and the home page includes not
only the PNG patch but also several others, so it can be recompiled and
tweaked at will. An upcoming patch will allow an image-background color to
be set, similar to the <b class="emphasis-bold">-bgcolor</b> option in the demo viewers in
<a href="chapter13.html">Chapter 13, "Reading PNG Images"</a> and <a href="chapter14.html">Chapter 14, "Reading PNG Images Progressively"</a>.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.trilon.com/xv/">http://www.trilon.com/xv/</a></pre></blockquote>


















</div>
<div class="sect1"><a name="png.ch03.div.4" />
<h2 class="sect1">3.4. Unix</h2>


<a name="INDEX-238" /><dl>
<dt><b><em class="emphasis">Cameleo</em></b></dt><dd>

<p><a name="INDEX-239" />Version 3.0 beta, Caldera Graphics. Conversion capabilities; claims full
16-bit-per-sample support and strongly implies full gamma and color correction,
including ICC profiles.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.caldera.fr/en/cameleo/">http://www.caldera.fr/en/cameleo/</a></pre></blockquote><dl>
<dt><b><em class="emphasis">Electric Eyes</em></b></dt><dd>

<p><a name="INDEX-240" />Red Hat Advanced Development Labs. Electric Eyes is a new,
Linux/GNOME-based image viewer by The Rasterman (who's perhaps better
known for his spectacularly fancy Enlightenment desktop). It is also
one of the prototype applications for 
<?x-need 10?><em class="emphasis">Imlib</em>, an X-based imaging toolkit described in <a href="chapter16.html">Chapter 16, "Other Libraries and Concluding Remarks"</a>.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.labs.redhat.com/ee.shtml">http://www.labs.redhat.com/ee.shtml</a></pre></blockquote><dl>
<dt><b><em class="emphasis">GRAV</em></b></dt><dd>

<p><a name="INDEX-241" />Version 3.5, Michael Knigge. Broken support for 24-bit images.
GRAV is a non-X-based image viewer for Linux, similar to Zgv, later in this list; it
uses <em class="emphasis">svgalib</em> to display on a Linux console. It has not been updated
since January 1996 and apparently is no longer under development.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://metalab.unc.edu/pub/Linux/apps/graphics/viewers/svga/grav-3.5.tar.gz">http://metalab.unc.edu/pub/Linux/apps/graphics/viewers/svga/grav-3.5.tar.gz</a></pre></blockquote><dl>
<dt><b><em class="emphasis">Image Alchemy</em></b></dt><dd>

<p><a name="INDEX-242" />Version 1.11, Handmade Software. Conversion
capabilities (in fact, primarily a command-line conversion tool); claims full
alpha support, gamma support, and support for ICC profiles via ColorSync. Note
that only the versions for DOS and Macintosh and the commercial versions for
Sun, SGI, and HP workstations include viewing capability.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.handmadesw.com/hsi/alchemy.html">http://www.handmadesw.com/hsi/alchemy.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">ImageMagick display</em></b></dt><dd>

<p><a name="INDEX-243" />Version 4.2.0, John Cristy. Conversion
capabilities (mostly via accompanying <em class="emphasis">convert</em> utility); full gamma
support; partial MNG support. There is also a 32-bit Windows port, but it
requires a third-party X server to run.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.wizards.dupont.com/cristy/ImageMagick.html">http://www.wizards.dupont.com/cristy/ImageMagick.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">Photon Picture Viewer/pv</em></b></dt><dd>

<p><a name="INDEX-244" />
<a name="INDEX-245" />QNX Software Systems. No gamma support;
QNX only. The Photon Picture Viewer is part of the Photon microGUI and can be
downloaded as part of QNX's 1.44 MB ``Internet Appliance'' demo diskette.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.qnx.com/products/photon/">http://www.qnx.com/products/photon/</a></pre></blockquote><dl>
<dt><b><em class="emphasis">PingPong</em></b></dt><dd>

<p><a name="INDEX-246" />Version 1.28, Willem van Schaik. Conversion capabilities (PNG to TIFF
only, apparently, with preservation of alpha/transparency); NeXTStep
and OpenStep only.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.schaik.com/pingpong/">http://www.schaik.com/pingpong/</a></pre></blockquote><dl>
<dt><b><em class="emphasis">Quick View Plus</em></b></dt><dd>

<p><a name="INDEX-247" />Version 4.5, Inso. There is also a version 5.0 for Windows, sold by
Jasc Software; see the listing in the 32-bit Windows section for at
least part of the strange story.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.inso.com/qvp/">http://www.inso.com/qvp/</a></pre></blockquote><dl>
<dt><b><em class="emphasis">ToyViewer</em></b></dt><dd>

<p><a name="INDEX-248" />Version 3.02, Takeshi Ogihara. Conversion capabilities;
transparency support; support for writing text comments; NeXTstep and OpenStep
only. The latest NeXTStep version is 2.6a.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.asahi-net.or.jp/~hq2t-oghr/next/toyv-eng.html">http://www.asahi-net.or.jp/~hq2t-oghr/next/toyv-eng.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">Viewpng</em></b></dt><dd>

<p><a name="INDEX-249" />
<a name="INDEX-250" />Version of May 9, 1997, Glenn Randers-Pehrson. Full alpha and
gamma support; partial (out-of-date) MNG support; SGI IRIX only. Viewpng
requires the separate <em class="emphasis">pnggzip</em> utility (included) for its compression and
decompression.</p></dd>

</dl>


<blockquote><pre class="code"><a href="ftp://swrinde.nde.swri.edu/pub/mng/applications/sgi/">ftp://swrinde.nde.swri.edu/pub/mng/applications/sgi/</a></pre></blockquote><dl>
<dt><b><em class="emphasis">xli</em></b></dt><dd>

<p><a name="INDEX-251" />Version 1.16, Graeme Gill. Like XV, the next entry, xli (a modified
version of xloadimage) has not been updated since 1994, before PNG was
born. But it is available as C source code from
<a href="ftp://ftp.x.org/">ftp://ftp.x.org/</a> and
elsewhere, and a PNG patch by Smarasderagd has been available for years, so
compiling a PNG-capable version is straightforward.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://web.access.net.au/argyll/xli.html">http://web.access.net.au/argyll/xli.html</a>
<a href="http://www.reptiles.org/~smar/xli-png.tar.gz">http://www.reptiles.org/~smar/xli-png.tar.gz</a></pre></blockquote><dl>
<dt><b><em class="emphasis">XV</em></b></dt><dd>

<p><a name="INDEX-252" />Version 3.10a, John Bradley. Conversion capabilities, including
interlacing support but without the ability to write transparent PNGs; full
gamma support; preserves text information. XV is widely considered to be <em class="emphasis">the</em>
preeminent image viewer for the X Window System.<a href="#FOOTNOTE-22">[22]</a>


The only major drawback is that it was last released in December 1994,
five days before the CompuServe/Unisys GIF announcement that began the
PNG saga and therefore does not include PNG support in the default
distribution. Fortunately, it is available as C source code, and the
home page includes not only the PNG patch but also several others, so
it can be recompiled and tweaked at will. An upcoming patch will
allow an image-background color to be set, similar to the
<b class="emphasis-bold">-bgcolor</b> option in the demo viewers in <a href="chapter13.html">Chapter 13, "Reading PNG Images"</a> and <a href="chapter14.html">Chapter 14, "Reading PNG Images Progressively"</a>.</p><blockquote class="footnote">


<a name="FOOTNOTE-22" />
<p>[22] In fact, it is my preferred viewer.</p>


</blockquote></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.trilon.com/xv/">http://www.trilon.com/xv/</a></pre></blockquote><dl>
<dt><b><em class="emphasis">Zgv</em></b></dt><dd>

<p><a name="INDEX-253" />Version 3.0, Russell Marks. Zgv is a non-X-based image viewer for
Linux, similar to GRAV, earlier in this list; it uses svgalib to
display on a Linux console.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://metalab.unc.edu/pub/Linux/apps/graphics/viewers/svga/zgv3.0-bin.tar.gz">http://metalab.unc.edu/pub/Linux/apps/graphics/viewers/svga/zgv3.0-bin.tar.gz</a></pre></blockquote>


















</div>
<div class="sect1"><a name="png.ch03.div.5" />
<h2 class="sect1">3.5. OS/2</h2>


<a name="INDEX-254" /><dl>
<dt><b><em class="emphasis">Galleria</em></b></dt><dd>

<p><a name="INDEX-255" />Version 2.31, Bitware Australia. Conversion capabilities
in registered version.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://ourworld.compuserve.com/homepages/bitware/">http://ourworld.compuserve.com/homepages/bitware/</a></pre></blockquote><dl>
<dt><b><em class="emphasis">PMJPEG</em></b></dt><dd>

<p><a name="INDEX-256" />Version 1.9 only, PixVision Software. No alpha support; claims gamma
support. Version 1.83 is the last version available as shareware from
the web site; it is not clear whether version 1.9 was actually
released or not.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.pixvision.com/html/product_info_1.html">http://www.pixvision.com/html/product_info_1.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">PMView</em></b></dt><dd>

<p><a name="INDEX-257" />Version 1.02, Peter Nielsen. Conversion capabilities; claims gamma
support. Despite its seemingly interminable pre-1.0 beta period,
PMView was probably the most popular image viewer for 32-bit OS/2.<a href="#FOOTNOTE-23">[23]</a>
</p><blockquote class="footnote">


<a name="FOOTNOTE-23" />
<p>[23] It was definitely my preferred OS/2 viewer.</p>


</blockquote></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.pmview.com/">http://www.pmview.com/</a></pre></blockquote>


















</div>
<div class="sect1"><a name="png.ch03.div.6" />
<h2 class="sect1">3.6. Macintosh</h2>


<a name="INDEX-258" /><dl>
<dt><b><em class="emphasis">CPIC</em></b></dt><dd>

<p><a name="INDEX-259" />Version 1.80 (``build 280''), Photodex. Conversion capabilities;
claims gamma support. CPIC is also sometimes known as CompuPic.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.photodex.com/products/cpic/cpic_home.html">http://www.photodex.com/products/cpic/cpic_home.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">DeBabelizer</em></b></dt><dd>

<p><a name="INDEX-260" />Version 3.0, Equilibrium. Conversion capabilities;
claims gamma support.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.equilibrium.com/ProductInfo/DB3/DB3NewFeatures.html">http://www.equilibrium.com/ProductInfo/DB3/DB3NewFeatures.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">GIFConverter</em></b></dt><dd>

<p><a name="INDEX-261" />Version 2.4, Kevin Mitchell. Conversion capabilities; no
transparency, gamma or text support.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.kamit.com/gifconverter/">http://www.kamit.com/gifconverter/</a></pre></blockquote><dl>
<dt><b><em class="emphasis">GraphicConverter</em></b></dt><dd>

<p><a name="INDEX-262" />Version 3.4.1, Lemke Software. Conversion
capabilities; claims alpha and gamma support.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.lemkesoft.de/us_gcabout.html">http://www.lemkesoft.de/us_gcabout.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">Image32</em></b></dt><dd>

<p><a name="INDEX-263" />Version 1.4.0, Mark Sproul.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://msproul.rutgers.edu/macintosh/Image32Docs.html">http://msproul.rutgers.edu/macintosh/Image32Docs.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">Image Alchemy</em></b></dt><dd>

<p><a name="INDEX-264" />Version 1.11, Handmade Software. Conversion
capabilities (in fact, primarily a conversion tool); claims full alpha support,
gamma support and support for ICC profiles via ColorSync. Note that only the
versions for DOS and Macintosh and the commercial versions for Sun, SGI, and HP
workstations include viewing capability.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.handmadesw.com/hsi/alchemy.html">http://www.handmadesw.com/hsi/alchemy.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">QuickTime PictureViewer</em></b></dt><dd>

<p><a name="INDEX-265" />Version 3.0, Apple Computer. Full gamma
and color-correction support via ColorSync; claims full alpha support (but
not clear in what form). PictureViewer completely supersedes the Tiny
Viewer demo app that Sam Bushell included with his QuickTime 2.5
PNG-Importer. Note that any QuickTime-aware application (even Apple's
SimpleText) can be used to view PNG images if QT3 is installed.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.apple.com/quicktime/">http://www.apple.com/quicktime/</a></pre></blockquote><dl>
<dt><b><em class="emphasis">ThumbsPlus</em></b></dt><dd>

<p><a name="INDEX-266" />Beta 11/version 3.10, Cerious Software.  Conversion capabilities, but
without the ability to write interlaced or transparent PNGs; possibly
full gamma support; can autogenerate web pages with thumbnail images.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.thumbsplus.com/http://www.thumbsplus.com/macbeta.htm">http://www.thumbsplus.com/http://www.thumbsplus.com/macbeta.htm</a></pre></blockquote>


















</div>
<div class="sect1"><a name="png.ch03.div.7" />
<h2 class="sect1">3.7. Java</h2>


<a name="INDEX-267" />
<p>As of January 1999 there were two Java viewers available, but with the 
recent addition of PNG support to the Java Advanced Imaging API, PNG-viewing
capability can be expected soon in numerous Java applications and applets.
<?x-need 15?></p>


<dl>
<dt><b><em class="emphasis">PNGImageViewer</em></b></dt><dd>

<p><a name="INDEX-268" />Neil Aggarwal. Requires Java (JDK) 1.1 or later.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.anet-dfw.com/~neil/PNGIVFrame.html">http://www.anet-dfw.com/~neil/PNGIVFrame.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">PngThing</em></b></dt><dd>

<p><a name="INDEX-269" />Sergey Kucherov. Requires Java (JDK) 1.1 or later.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://users.luckynet.co.il/~serge3/pngthing/PngThing.html">http://users.luckynet.co.il/~serge3/pngthing/PngThing.html</a></pre></blockquote>


















</div>
<div class="sect1"><a name="png.ch03.div.8" />
<h2 class="sect1">3.8. DOS</h2>


<a name="INDEX-270" /><dl>
<dt><b><em class="emphasis">CompuShow</em></b></dt><dd>

<p><a name="INDEX-271" />Version 9.04, Bob Berry.<a href="#FOOTNOTE-24">[24]</a>


Conversion capabilities; gamma support; progressive display of interlaced
images. Related software includes CompuShow 2000.</p><blockquote class="footnote">


<a name="FOOTNOTE-24" />

<p>[24] Contrary to the claim in the first edition of
this book, Bob was <em class="emphasis">not</em> the inventor of the GIF
image format, so one should not consider him the grandfather of PNG.  (It's
good to keep these things straight.)</p>


</blockquote></dd>

</dl>


<blockquote><pre class="code"><a href="ftp://ftp.simtel.net/pub/simtelnet/msdos/graphics/cshow904.zipftp://ftp.simtel.net/pub/simtelnet/msdos/graphics/2show204.zip">ftp://ftp.simtel.net/pub/simtelnet/msdos/graphics/cshow904.zipftp://ftp.simtel.net/pub/simtelnet/msdos/graphics/2show204.zip</a></pre></blockquote><dl>
<dt><b><em class="emphasis">Display</em></b></dt><dd>

<p><a name="INDEX-272" />Version 1.90t5 beta or 1.89, Jih-Shin Ho. Conversion
capabilities; gamma support. Development apparently ended in June 1997.</p></dd>

</dl>


<blockquote><pre class="code"><a href="ftp://ftp.edu.tw/Graphics/Display/http://fn2.freenet.edmonton.ab.ca/~crnelson/display.html">ftp://ftp.edu.tw/Graphics/Display/http://fn2.freenet.edmonton.ab.ca/~crnelson/display.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">Graphic Workshop</em></b></dt><dd>

<p><a name="INDEX-273" />Version 7.0f, Alchemy Mindworks. Conversion
capabilities. Version 7.0f was the first and last DOS release to have PNG
support. See also the 16-bit and 32-bit Windows versions earlier in this chapter.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.mindworkshop.com/alchemy/gws.html">http://www.mindworkshop.com/alchemy/gws.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">Image Alchemy</em></b></dt><dd>

<p><a name="INDEX-274" />Version 1.11, Handmade Software. Conversion
capabilities (in fact, primarily a command-line conversion tool); claims full
alpha support, gamma support, and support for ICC profiles via ColorSync. Note
that only the versions for DOS and Macintosh and the commercial versions for
Sun, SGI, and HP workstations include viewing capability.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.handmadesw.com/hsi/alchemy.html">http://www.handmadesw.com/hsi/alchemy.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">NView</em></b></dt><dd>

<p><a name="INDEX-275" />Version 1.5f, Jacques Nomssi Nzali. Development apparently
ended in June 1996.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.tu-chemnitz.de/~nomssi/nview.html">http://www.tu-chemnitz.de/~nomssi/nview.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">PictView</em></b></dt><dd>

<p><a name="INDEX-276" />Version 1.80, Jan Patera. Conversion capabilities, but PNG
support is read-only.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://pascal.fjfi.cvut.cz/~patera/pictview/http://www.geocities.com/SiliconValley/Pines/9994/">http://pascal.fjfi.cvut.cz/~patera/pictview/http://www.geocities.com/SiliconValley/Pines/9994/</a></pre></blockquote><dl>
<dt><b><em class="emphasis">QPV/386</em></b></dt><dd>

<p><a name="INDEX-277" />Version 1.7e, Oliver Fromme. QPV/386 is a multipurpose image
viewer known for its speed; QPNG/386 is its free, PNG- and TGA-only
sibling. Development on both apparently ended in November 1996.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.tu-clausthal.de/~inof/q.htmlftp://ftp.cs.tu-berlin.de/pub/msdos/mirrors/stuba/pc/graph/qpng17e.zip">http://www.tu-clausthal.de/~inof/q.htmlftp://ftp.cs.tu-berlin.de/pub/msdos/mirrors/stuba/pc/graph/qpng17e.zip</a></pre></blockquote><dl>
<dt><b><em class="emphasis">SEA</em></b></dt><dd>

<p><a name="INDEX-278" />Version 1.34, Bart Wakkee, Ralph Gortzen, and Harold de Laat
(distributed by Photodex). Conversion capabilities.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.photodex.com/products/dos/dos_home.html#sea">http://www.photodex.com/products/dos/dos_home.html#sea</a></pre></blockquote>


















</div>
<div class="sect1"><a name="png.ch03.div.9" />
<h2 class="sect1">3.9. BeOS</h2>


<a name="INDEX-279" />
<p>In addition to the following three viewers, Al Evans's BePNG and
Jeremy Moskovich's BeShow were once available. But incompatibilities
in the development versions of BeOS took their toll, and the two viewers
were never updated to work with BeOS releases more recent than DR8 or DR9;
they have since been moved to the ``obsolete'' area of Be's FTP site. BePNG
was unique in having native support for PNG; all of the others use the
<em class="emphasis">datatypes</em> facility developed by Jon Watte and later incorporated into
the operating system as the BeOS translation kit. PNG support is provided
via Simon Clarke's BPNGHandler:</p>


<blockquote><pre class="code"><a href="http://www.be.com/beware/Datatypes/PNGHandler.html">http://www.be.com/beware/Datatypes/PNGHandler.html</a></pre></blockquote>

<p>It appeared in October 1998 that PNGHandler might have been renamed to
PNGTranslator as of version 1.20 (see also the discussion in <a href="chapter16.html">Chapter 16, "Other Libraries and Concluding Remarks"</a>),
but as of February 1999, the web page still referred to the original name.
<?x-need 10?></p>


<dl>
<dt><b><em class="emphasis">DTPicView</em></b></dt><dd>

<p><a name="INDEX-280" />Version 3.1.0, Edmund Vermeulen.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.xs4all.nl/~edmundv/#DTPicViewhttp://www.be.com/beware/Graphics/DTPicView.html">http://www.xs4all.nl/~edmundv/#DTPicViewhttp://www.be.com/beware/Graphics/DTPicView.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">LiView</em></b></dt><dd>

<p><a name="INDEX-281" />Version 1.2 beta 5, Philippe Thomas.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://aria.u-strasbg.fr/~thomasp/projets_be.html">http://aria.u-strasbg.fr/~thomasp/projets_be.html</a></pre></blockquote><dl>
<dt><b><em class="emphasis">QuickPic</em></b></dt><dd>

<p><a name="INDEX-282" />Version 0.90, Frank Fejes. Development apparently ended
in February 1997; the app was never updated to work with BeOS versions more
recent than DR8.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://yoss.canweb.net/~frank/QuickPic/">http://yoss.canweb.net/~frank/QuickPic/</a></pre></blockquote>


















</div>
<div class="sect1"><a name="png.ch03.div.10" />
<h2 class="sect1">3.10. Atari</h2>


<a name="INDEX-283" /><dl>
<dt><b><em class="emphasis">1stGuide</em></b></dt><dd>

<p><a name="INDEX-284" />Version of June 10, 1997, Guido Vollbeding.</p></dd>

</dl>

<!-- 20041125:  was http://www.esc.de/homes/guivol/1stguide/ ; changed at
     request of Gerhard Oppenhorst, geropp/esc.de -->
<blockquote><pre class="code"><a href="http://sylvana.net/1stguide/">http://sylvana.net/1stguide/</a></pre></blockquote><dl>
<dt><b><em class="emphasis">GEM-View</em></b></dt><dd>

<p><a name="INDEX-285" />Version 3.18, Dieter Fiebelkorn. GEM-View can view and save
PNG images if Eric Prevoteau's PNG load/save modules have been installed.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.castrop-rauxel.netsurf.de/homepages/dieter.fiebelkorn/GEMVIEW.HTML&#10;ftp://ftp.lip6.fr/pub/atari/Graphics/gvw_png.lzh">http://www.castrop-rauxel.netsurf.de/homepages/dieter.fiebelkorn/GEMVIEW.HTML
ftp://ftp.lip6.fr/pub/atari/Graphics/gvw_png.lzh</a></pre></blockquote>


















</div>
<div class="sect1"><a name="png.ch03.div.11" />
<h2 class="sect1">3.11. Amiga</h2>



<p><a name="INDEX-286" />
<a name="INDEX-287" />The Amiga includes a lovely facility known as <em class="emphasis">datatypes</em>, basically an
extension of normal shared libraries (or DLLs) to provide generic data handling
capabilities. With this facility, any datatypes-aware program--whether
viewer, web browser, or image editor--can be extended after the fact,
simply by adding the appropriate datatype for whatever new format comes along.
In the case of PNG, two datatypes are available: Cloanto's and Andreas
Kleinert's:</p>


<blockquote><pre class="code"><a href="http://www.aminet.org/pub/aminet/util/dtype/PNG_dt.lhahttp://www.aminet.org/pub/aminet/util/dtype/akPNG-dt.lha">http://www.aminet.org/pub/aminet/util/dtype/PNG_dt.lhahttp://www.aminet.org/pub/aminet/util/dtype/akPNG-dt.lha</a></pre></blockquote>

<p>Except where noted, all of the Amiga image viewers that follow require one of
these datatypes for PNG support. (Indeed, there are probably many other
datatypes-based viewers that are not listed here.)</p>


<dl>
<dt><b><em class="emphasis">Image Engineer</em></b></dt><dd>

<p><a name="INDEX-288" />Version 3.41, Simon Edwards. Conversion capabilities.
Image Engineer uses the SuperView Library (see <a href="chapter16.html">Chapter 16, "Other Libraries and Concluding Remarks"</a>) for its image
support instead of datatypes.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://amigaworld.com/support/imageengineer/">http://amigaworld.com/support/imageengineer/</a></pre></blockquote><dl>
<dt><b><em class="emphasis">Multiview</em></b></dt><dd>

<p><a name="INDEX-289" />Amiga. Multiview was apparently a standard, datatypes-aware
viewer shipped as part of the Amiga operating system.</p></dd>



<dt><b><em class="emphasis">PPShow</em></b></dt><dd>

<p><a name="INDEX-290" />Version 4.0, Nico Fran&ccedil;ois. Insofar as its last release
was in February 1994--more than a year before the PNG specification was
frozen--PPShow is a fine example of the power of Amiga datatypes.
</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.aminet.org/pub/aminet/gfx/show/PPShow40.lha">http://www.aminet.org/pub/aminet/gfx/show/PPShow40.lha</a></pre></blockquote><dl>
<dt><b><em class="emphasis">SViewII</em></b></dt><dd>

<p><a name="INDEX-291" />Version 8.10, Andreas Kleinert. Conversion capabilities.
Formerly known as SuperView, SViewII includes the SuperView Library
(discussed in <a href="chapter16.html">Chapter 16, "Other Libraries and Concluding Remarks"</a>) for all image I/O, instead of
datatypes, despite the fact that Andreas wrote one of the available datatypes.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://home.t-online.de/home/Andreas_Kleinert/sview.htm">http://home.t-online.de/home/Andreas_Kleinert/sview.htm</a></pre></blockquote><dl>
<dt><b><em class="emphasis">ViewDT</em></b></dt><dd>

<p><a name="INDEX-292" />Cloanto. ViewDT is a demo viewer included with Cloanto's PNG
datatype; source code is included. Cloanto also once had a viewer called
Personal View, but it no longer seems to exist.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.aminet.org/pub/aminet/util/dtype/PNG_dt.lha">http://www.aminet.org/pub/aminet/util/dtype/PNG_dt.lha</a></pre></blockquote><dl>
<dt><b><em class="emphasis">ViewTEK</em></b></dt><dd>

<p><a name="INDEX-293" />Version 2.1, Thomas Krehbiel.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.aminet.org/pub/aminet/gfx/show/ViewTEK21.lha">http://www.aminet.org/pub/aminet/gfx/show/ViewTEK21.lha</a></pre></blockquote><dl>
<dt><b><em class="emphasis">Visage</em></b></dt><dd>

<p><a name="INDEX-294" />Version 39.21, Magnus Holmgren. Visage has had native PNG
support since version 39.12.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://www.algonet.se/~lear/visage.html">http://www.algonet.se/~lear/visage.html</a></pre></blockquote>


















</div>
<div class="sect1"><a name="png.ch03.div.12" />
<h2 class="sect1">3.12. Acorn RISC OS</h2>


<p><a name="INDEX-295" />
<a name="INDEX-296" />Although there are undoubtedly other image viewers available for the Archimedes,
discovering them is tricky for those who are unacquainted with Acorn
software sites. But at least one PNG-capable viewer exists:</p>


<dl>
<dt><b><em class="emphasis">Translator</em></b></dt><dd>

<p><a name="INDEX-297" />Version 8.00, John Kortink. Conversion capabilities.</p></dd>

</dl>


<blockquote><pre class="code"><a href="http://web.inter.nl.net/users/J.Kortink/indexsw.htm">http://web.inter.nl.net/users/J.Kortink/indexsw.htm</a></pre></blockquote>

<PRE>





























</PRE>


<hr> <!-- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- -->

<a href="chapter02.html"><img width=24 height=13 border=0 align="left"
 src="images/prev.png" alt="&lt;-"></a>

<a href="chapter04.html"><img width=24 height=13 border=0 align="right"
 src="images/next.png" alt="-&gt;"></a>

<div align="center">
  <a href="chapter02.html"><font size="-1" color="#000000"
   ><b>PREVIOUS</b></font></a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a
     href="toc.html"><font size="-1" color="#000000"
   ><b>CONTENTS</b></font></a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a
     href="chapter04.html"><font size="-1" color="#000000"
   ><b>NEXT</b></font></a>
</div>

<hr> <!-- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- -->



</body></html>
png-definitive-guide 20060430-1 / usr / share / doc / png-definitive-guide / html / chapter03.html
