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Diffstat (limited to 'docs/html/guide/developing/tools/etc1tool.jd')
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diff --git a/docs/html/guide/developing/tools/etc1tool.jd b/docs/html/guide/developing/tools/etc1tool.jd new file mode 100644 index 0000000..a7f76f5 --- /dev/null +++ b/docs/html/guide/developing/tools/etc1tool.jd @@ -0,0 +1,68 @@ +page.title=etc1tool +parent.title=Tools +parent.link=index.html +@jd:body + + + <p><code>etc1tool</code> is a command line utility that lets you encode PNG + images to the ETC1 compression standard and decode ETC1 compressed images back to PNG.</p> + + <p>The usage for <code>etc1tool</code> is:</p> +<pre>etc1tool infile [--help | --encode | --encodeNoHeader | --decode] [--showDifference +diff-file] [-o outfile]</pre> + + <table> + <tr> + <th>Option</th> + + <th>Description</th> + </tr> + + <tr> + <td><code>infile</code></td> + + <td>The input file to compress</td> + </tr> + + <tr> + <td><code>--help</code></td> + + <td>Print usage information</td> + </tr> + + <tr> + <td><code>--encode</code></td> + + <td>Create an ETC1 file from a PNG file. + This is the default mode for the tool if nothing is specified.</td> + </tr> + + <tr> + <td><code>--encodeNoHeader</code></td> + + <td>Create a raw ETC1 data file (without a header) from a PNG file.</td> + </tr> + + <tr> + <td><code>--decode</code></td> + + <td>Create a PNG file from an ETC1 file</td> + </tr> + + <tr> + <td><code>--showDifference <em>diff-file</em></code></td> + + <td>Write the difference between the original and encoded image to + <code><em>diff-file</em></code> (only valid when encoding).</td> + </tr> + + <tr> + <td><code>-o <em>outfile</em></code></td> + + <td>Specify the name of the output file. + If <code><em>outfile</em></code> is not specified, the output file is constructed + from the input filename with the appropriate suffix (<code>.pkm</code> or <code>.png</code>). + </td> + </tr> + + </table>
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