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<div class="refnamediv"><table width="100%"><tr>
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<h2><span class="refentrytitle"><a name="libg3d-iff.top_of_page"></a>iff</span></h2>
<p>iff — IFF file helper functions</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="libg3d-iff.functions"></a><h2>Functions</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
</colgroup>
<tbody>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="libg3d-iff.html#G3D-IFF-MKID:CAPS" title="G3D_IFF_MKID()">G3D_IFF_MKID</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="libg3d-iff.html#g3d-iff-check" title="g3d_iff_check ()">g3d_iff_check</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gsize</span>
</td>
<td class="function_name">
<a class="link" href="libg3d-iff.html#g3d-iff-read-chunk" title="g3d_iff_read_chunk ()">g3d_iff_read_chunk</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gpointer</span>
</td>
<td class="function_name">
<a class="link" href="libg3d-iff.html#g3d-iff-handle-chunk" title="g3d_iff_handle_chunk ()">g3d_iff_handle_chunk</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="libg3d-iff.html#g3d-iff-chunk-matches" title="g3d_iff_chunk_matches ()">g3d_iff_chunk_matches</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="libg3d-iff.html#g3d-iff-read-ctnr" title="g3d_iff_read_ctnr ()">g3d_iff_read_ctnr</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gchar</span> *
</td>
<td class="function_name">
<a class="link" href="libg3d-iff.html#g3d-iff-id-to-text" title="g3d_iff_id_to_text ()">g3d_iff_id_to_text</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">FILE</span> *
</td>
<td class="function_name">
<a class="link" href="libg3d-iff.html#g3d-iff-open" title="g3d_iff_open ()">g3d_iff_open</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">int</span>
</td>
<td class="function_name">
<a class="link" href="libg3d-iff.html#g3d-iff-readchunk" title="g3d_iff_readchunk ()">g3d_iff_readchunk</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="libg3d-iff.html#G3DIffChunkCallback" title="G3DIffChunkCallback ()">*G3DIffChunkCallback</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="libg3d-iff.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="libg3d-iff.html#G3D-IFF-PAD1:CAPS" title="G3D_IFF_PAD1">G3D_IFF_PAD1</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="libg3d-iff.html#G3D-IFF-PAD2:CAPS" title="G3D_IFF_PAD2">G3D_IFF_PAD2</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="libg3d-iff.html#G3D-IFF-PAD4:CAPS" title="G3D_IFF_PAD4">G3D_IFF_PAD4</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="libg3d-iff.html#G3D-IFF-PAD8:CAPS" title="G3D_IFF_PAD8">G3D_IFF_PAD8</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="libg3d-iff.html#G3D-IFF-LE:CAPS" title="G3D_IFF_LE">G3D_IFF_LE</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="libg3d-iff.html#G3D-IFF-LEN16:CAPS" title="G3D_IFF_LEN16">G3D_IFF_LEN16</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="libg3d-iff.html#G3D-IFF-SUBCHUNK-LEN16:CAPS" title="G3D_IFF_SUBCHUNK_LEN16">G3D_IFF_SUBCHUNK_LEN16</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="libg3d-iff.html#g3d-iff-chunk-callback" title="g3d_iff_chunk_callback">g3d_iff_chunk_callback</a></td>
</tr>
<tr>
<td class="datatype_keyword"> </td>
<td class="function_name"><a class="link" href="libg3d-iff.html#G3DIffChunkInfo" title="G3DIffChunkInfo">G3DIffChunkInfo</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="libg3d-iff.html#g3d-iff-chunk-info" title="g3d_iff_chunk_info">g3d_iff_chunk_info</a></td>
</tr>
<tr>
<td class="datatype_keyword"> </td>
<td class="function_name"><a class="link" href="libg3d-iff.html#G3DIffGlobal" title="G3DIffGlobal">G3DIffGlobal</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="libg3d-iff.html#g3d-iff-gdata" title="g3d_iff_gdata">g3d_iff_gdata</a></td>
</tr>
<tr>
<td class="datatype_keyword"> </td>
<td class="function_name"><a class="link" href="libg3d-iff.html#G3DIffLocal" title="G3DIffLocal">G3DIffLocal</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="libg3d-iff.html#g3d-iff-ldata" title="g3d_iff_ldata">g3d_iff_ldata</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="libg3d-iff.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include <g3d/iff.h>
</pre>
</div>
<div class="refsect1">
<a name="libg3d-iff.description"></a><h2>Description</h2>
<p>These are helper functions to read data from the Interchange File Format
(IFF).</p>
</div>
<div class="refsect1">
<a name="libg3d-iff.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="G3D-IFF-MKID:CAPS"></a><h3>G3D_IFF_MKID()</h3>
<pre class="programlisting">#define G3D_IFF_MKID(a,b,c,d)</pre>
<p>Generate an IFF chunk identifier from character representation, e.g.
G3D_IFF_MKID('F','O','R','M').</p>
<div class="refsect3">
<a name="id-1.3.4.7.2.5"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>a</p></td>
<td class="parameter_description"><p>first byte</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>b</p></td>
<td class="parameter_description"><p>second byte</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>c</p></td>
<td class="parameter_description"><p>third byte</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>d</p></td>
<td class="parameter_description"><p>fourth byte</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.4.7.2.6"></a><h4>Returns</h4>
<p> unsigned integer identifier.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="g3d-iff-check"></a><h3>g3d_iff_check ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
g3d_iff_check (<em class="parameter"><code><a class="link" href="libg3d-stream.html#G3DStream" title="G3DStream"><span class="type">G3DStream</span></a> *stream</code></em>,
<em class="parameter"><code><span class="type">guint32</span> *id</code></em>,
<em class="parameter"><code><span class="type">gsize</span> *len</code></em>);</pre>
<p>Checks a stream for a valid IFF signature and reads the top level container.</p>
<div class="refsect3">
<a name="id-1.3.4.7.3.5"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>stream</p></td>
<td class="parameter_description"><p>stream containing IFF file to check</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>id</p></td>
<td class="parameter_description"><p>top level ID (out)</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>len</p></td>
<td class="parameter_description"><p>length of top level container (out)</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.4.7.3.6"></a><h4>Returns</h4>
<p> TRUE on success (valid IFF), FALSE else</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="g3d-iff-read-chunk"></a><h3>g3d_iff_read_chunk ()</h3>
<pre class="programlisting"><span class="returnvalue">gsize</span>
g3d_iff_read_chunk (<em class="parameter"><code><a class="link" href="libg3d-stream.html#G3DStream" title="G3DStream"><span class="type">G3DStream</span></a> *stream</code></em>,
<em class="parameter"><code><span class="type">guint32</span> *id</code></em>,
<em class="parameter"><code><span class="type">gsize</span> *len</code></em>,
<em class="parameter"><code><span class="type">guint32</span> flags</code></em>);</pre>
<p>Reads one chunk header from an IFF file.</p>
<div class="refsect3">
<a name="id-1.3.4.7.4.5"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>stream</p></td>
<td class="parameter_description"><p>stream to read from</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>id</p></td>
<td class="parameter_description"><p>ID of chunk (out)</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>len</p></td>
<td class="parameter_description"><p>length of chunk (excluding header) (out)</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>flags</p></td>
<td class="parameter_description"><p>flags</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.4.7.4.6"></a><h4>Returns</h4>
<p> real length of chunk including header and possible padding byte</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="g3d-iff-handle-chunk"></a><h3>g3d_iff_handle_chunk ()</h3>
<pre class="programlisting"><span class="returnvalue">gpointer</span>
g3d_iff_handle_chunk (<em class="parameter"><code><a class="link" href="libg3d-iff.html#G3DIffGlobal" title="G3DIffGlobal"><span class="type">G3DIffGlobal</span></a> *global</code></em>,
<em class="parameter"><code><a class="link" href="libg3d-iff.html#G3DIffLocal" title="G3DIffLocal"><span class="type">G3DIffLocal</span></a> *plocal</code></em>,
<em class="parameter"><code><a class="link" href="libg3d-iff.html#G3DIffChunkInfo" title="G3DIffChunkInfo"><span class="type">G3DIffChunkInfo</span></a> *chunks</code></em>,
<em class="parameter"><code><span class="type">guint32</span> flags</code></em>);</pre>
<p>Handle an IFF chunk based on chunk description.</p>
<div class="refsect3">
<a name="id-1.3.4.7.5.5"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>global</p></td>
<td class="parameter_description"><p>global data</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>plocal</p></td>
<td class="parameter_description"><p>local data of parent chunk, must not be NULL</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>chunks</p></td>
<td class="parameter_description"><p>chunk description list</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>flags</p></td>
<td class="parameter_description"><p>IFF flags</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.4.7.5.6"></a><h4>Returns</h4>
<p> level object for siblings, may be NULL.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="g3d-iff-chunk-matches"></a><h3>g3d_iff_chunk_matches ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
g3d_iff_chunk_matches (<em class="parameter"><code><span class="type">guint32</span> id</code></em>,
<em class="parameter"><code><span class="type">gchar</span> *tid</code></em>);</pre>
<p>Check whether <em class="parameter"><code>id</code></em>
and <em class="parameter"><code>tid</code></em>
match.</p>
<div class="refsect3">
<a name="id-1.3.4.7.6.5"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>id</p></td>
<td class="parameter_description"><p>IFF identifier</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>tid</p></td>
<td class="parameter_description"><p>textual representation of identifier</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.4.7.6.6"></a><h4>Returns</h4>
<p> TRUE on match, FALSE else.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="g3d-iff-read-ctnr"></a><h3>g3d_iff_read_ctnr ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
g3d_iff_read_ctnr (<em class="parameter"><code><a class="link" href="libg3d-iff.html#G3DIffGlobal" title="G3DIffGlobal"><span class="type">G3DIffGlobal</span></a> *global</code></em>,
<em class="parameter"><code><a class="link" href="libg3d-iff.html#G3DIffLocal" title="G3DIffLocal"><span class="type">G3DIffLocal</span></a> *local</code></em>,
<em class="parameter"><code><a class="link" href="libg3d-iff.html#G3DIffChunkInfo" title="G3DIffChunkInfo"><span class="type">G3DIffChunkInfo</span></a> *chunks</code></em>,
<em class="parameter"><code><span class="type">guint32</span> flags</code></em>);</pre>
<p>Read subchunks in current chunk and handle them appropriately.</p>
<div class="refsect3">
<a name="id-1.3.4.7.7.5"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>global</p></td>
<td class="parameter_description"><p>global data</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>local</p></td>
<td class="parameter_description"><p>local data of current chunk, must not be NULL</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>chunks</p></td>
<td class="parameter_description"><p>chunk description list</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>flags</p></td>
<td class="parameter_description"><p>IFF flags</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.4.7.7.6"></a><h4>Returns</h4>
<p> TRUE on success, FALSE else.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="g3d-iff-id-to-text"></a><h3>g3d_iff_id_to_text ()</h3>
<pre class="programlisting"><span class="returnvalue">gchar</span> *
g3d_iff_id_to_text (<em class="parameter"><code><span class="type">guint32</span> id</code></em>);</pre>
<div class="warning"><p><code class="literal">g3d_iff_id_to_text</code> is deprecated and should not be used in newly-written code.</p></div>
<p>Get the text representation of an IFF chunk identifier.</p>
<div class="refsect3">
<a name="id-1.3.4.7.8.6"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>id</p></td>
<td class="parameter_description"><p>an IFF identifier</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.4.7.8.7"></a><h4>Returns</h4>
<p> a newly allocated string containing the text identifier.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="g3d-iff-open"></a><h3>g3d_iff_open ()</h3>
<pre class="programlisting"><span class="returnvalue">FILE</span> *
g3d_iff_open (<em class="parameter"><code>const <span class="type">gchar</span> *filename</code></em>,
<em class="parameter"><code><span class="type">guint32</span> *id</code></em>,
<em class="parameter"><code><span class="type">guint32</span> *len</code></em>);</pre>
<p>Opens an IFF file, checks it and reads its top level container.</p>
<div class="refsect3">
<a name="id-1.3.4.7.9.5"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>filename</p></td>
<td class="parameter_description"><p>file name of IFF file</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>id</p></td>
<td class="parameter_description"><p>top level ID (out)</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>len</p></td>
<td class="parameter_description"><p>length of top level container (out)</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.4.7.9.6"></a><h4>Returns</h4>
<p> the file pointer of open file or NULL in case of an error</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="g3d-iff-readchunk"></a><h3>g3d_iff_readchunk ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span>
g3d_iff_readchunk (<em class="parameter"><code><span class="type">FILE</span> *f</code></em>,
<em class="parameter"><code><span class="type">guint32</span> *id</code></em>,
<em class="parameter"><code><span class="type">guint32</span> *len</code></em>,
<em class="parameter"><code><span class="type">guint32</span> flags</code></em>);</pre>
<p>Reads one chunk header from an IFF file.</p>
<div class="refsect3">
<a name="id-1.3.4.7.10.5"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>f</p></td>
<td class="parameter_description"><p>the open IFF file pointer</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>id</p></td>
<td class="parameter_description"><p>ID of chunk (out)</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>len</p></td>
<td class="parameter_description"><p>length of chunk (excluding header) (out)</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>flags</p></td>
<td class="parameter_description"><p>flags</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.4.7.10.6"></a><h4>Returns</h4>
<p> real length of chunk including header and possible padding byte</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="G3DIffChunkCallback"></a><h3>G3DIffChunkCallback ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
<span class="c_punctuation">(</span>*G3DIffChunkCallback<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="libg3d-iff.html#G3DIffGlobal" title="G3DIffGlobal"><span class="type">G3DIffGlobal</span></a> *global</code></em>,
<em class="parameter"><code><a class="link" href="libg3d-iff.html#G3DIffLocal" title="G3DIffLocal"><span class="type">G3DIffLocal</span></a> *local</code></em>);</pre>
<p>IFF callback function prototype.</p>
<div class="refsect3">
<a name="id-1.3.4.7.11.5"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>global</p></td>
<td class="parameter_description"><p>the global data</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>local</p></td>
<td class="parameter_description"><p>the local data</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.4.7.11.6"></a><h4>Returns</h4>
<p> TRUE on success, FALSE else.</p>
</div>
</div>
</div>
<div class="refsect1">
<a name="libg3d-iff.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="G3D-IFF-PAD1:CAPS"></a><h3>G3D_IFF_PAD1</h3>
<pre class="programlisting">#define G3D_IFF_PAD1 0x01
</pre>
<p>No padding is done after chunks.</p>
</div>
<hr>
<div class="refsect2">
<a name="G3D-IFF-PAD2:CAPS"></a><h3>G3D_IFF_PAD2</h3>
<pre class="programlisting">#define G3D_IFF_PAD2 0x02
</pre>
<p>Chunks are 2-byte aligned</p>
</div>
<hr>
<div class="refsect2">
<a name="G3D-IFF-PAD4:CAPS"></a><h3>G3D_IFF_PAD4</h3>
<pre class="programlisting">#define G3D_IFF_PAD4 0x04
</pre>
<p>Chunks are 4-byte aligned</p>
</div>
<hr>
<div class="refsect2">
<a name="G3D-IFF-PAD8:CAPS"></a><h3>G3D_IFF_PAD8</h3>
<pre class="programlisting">#define G3D_IFF_PAD8 0x08
</pre>
<p>Chunks are 8-byte aligned</p>
</div>
<hr>
<div class="refsect2">
<a name="G3D-IFF-LE:CAPS"></a><h3>G3D_IFF_LE</h3>
<pre class="programlisting">#define G3D_IFF_LE 0x40 /* little endian */
</pre>
<p>The file has little-endian data.</p>
</div>
<hr>
<div class="refsect2">
<a name="G3D-IFF-LEN16:CAPS"></a><h3>G3D_IFF_LEN16</h3>
<pre class="programlisting">#define G3D_IFF_LEN16 0x20
</pre>
<p>All chunks have 16-bit sizes.</p>
</div>
<hr>
<div class="refsect2">
<a name="G3D-IFF-SUBCHUNK-LEN16:CAPS"></a><h3>G3D_IFF_SUBCHUNK_LEN16</h3>
<pre class="programlisting">#define G3D_IFF_SUBCHUNK_LEN16 0x10
</pre>
<p>All chunks except the toplevel ones have 16-bit sizes.</p>
</div>
<hr>
<div class="refsect2">
<a name="g3d-iff-chunk-callback"></a><h3>g3d_iff_chunk_callback</h3>
<pre class="programlisting">#define g3d_iff_chunk_callback G3DIffChunkCallback
</pre>
<p>IFF chunk callback (deprecated).</p>
</div>
<hr>
<div class="refsect2">
<a name="G3DIffChunkInfo"></a><h3>G3DIffChunkInfo</h3>
<pre class="programlisting">typedef struct {
gchar *id;
gchar *description;
gboolean container;
G3DIffChunkCallback callback;
} G3DIffChunkInfo;
</pre>
<p>A chunk type description.</p>
<div class="refsect3">
<a name="id-1.3.4.8.10.5"></a><h4>Members</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="300px" class="struct_members_name">
<col class="struct_members_description">
<col width="200px" class="struct_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="struct_member_name"><p><span class="type">gchar</span> *<em class="structfield"><code><a name="G3DIffChunkInfo.id"></a>id</code></em>;</p></td>
<td class="struct_member_description"><p>identifier of chunk</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><span class="type">gchar</span> *<em class="structfield"><code><a name="G3DIffChunkInfo.description"></a>description</code></em>;</p></td>
<td class="struct_member_description"><p>human-readable description of chunk type</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><span class="type">gboolean</span> <em class="structfield"><code><a name="G3DIffChunkInfo.container"></a>container</code></em>;</p></td>
<td class="struct_member_description"><p>TRUE if this chunk contains sub-chunks</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><a class="link" href="libg3d-iff.html#G3DIffChunkCallback" title="G3DIffChunkCallback ()"><span class="type">G3DIffChunkCallback</span></a> <em class="structfield"><code><a name="G3DIffChunkInfo.callback"></a>callback</code></em>;</p></td>
<td class="struct_member_description"><p>function to be called if such a chunk is found</p></td>
<td class="struct_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="g3d-iff-chunk-info"></a><h3>g3d_iff_chunk_info</h3>
<pre class="programlisting">#define g3d_iff_chunk_info G3DIffChunkInfo
</pre>
<p>IFF chunk description (deprecated).</p>
</div>
<hr>
<div class="refsect2">
<a name="G3DIffGlobal"></a><h3>G3DIffGlobal</h3>
<pre class="programlisting">typedef struct {
G3DContext *context;
G3DModel *model;
G3DStream *stream;
guint32 flags;
gpointer user_data;
FILE *f;
long int max_fpos;
} G3DIffGlobal;
</pre>
<p>The plugin-global data to be given to IFF callback functions.</p>
<div class="refsect3">
<a name="id-1.3.4.8.12.5"></a><h4>Members</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="300px" class="struct_members_name">
<col class="struct_members_description">
<col width="200px" class="struct_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="struct_member_name"><p><a class="link" href="libg3d-context.html#G3DContext" title="G3DContext"><span class="type">G3DContext</span></a> *<em class="structfield"><code><a name="G3DIffGlobal.context"></a>context</code></em>;</p></td>
<td class="struct_member_description"><p>a valid context</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><a class="link" href="libg3d-model.html#G3DModel" title="G3DModel"><span class="type">G3DModel</span></a> *<em class="structfield"><code><a name="G3DIffGlobal.model"></a>model</code></em>;</p></td>
<td class="struct_member_description"><p>a model</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><a class="link" href="libg3d-stream.html#G3DStream" title="G3DStream"><span class="type">G3DStream</span></a> *<em class="structfield"><code><a name="G3DIffGlobal.stream"></a>stream</code></em>;</p></td>
<td class="struct_member_description"><p>the stream to read model from</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><span class="type">guint32</span> <em class="structfield"><code><a name="G3DIffGlobal.flags"></a>flags</code></em>;</p></td>
<td class="struct_member_description"><p>IFF flags</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><span class="type">gpointer</span> <em class="structfield"><code><a name="G3DIffGlobal.user-data"></a>user_data</code></em>;</p></td>
<td class="struct_member_description"><p>to be used by plugin</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><span class="type">FILE</span> *<em class="structfield"><code><a name="G3DIffGlobal.f"></a>f</code></em>;</p></td>
<td class="struct_member_description"><p>file to read model from (DEPRECATED)</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p>long <span class="type">int</span> <em class="structfield"><code><a name="G3DIffGlobal.max-fpos"></a>max_fpos</code></em>;</p></td>
<td class="struct_member_description"><p>maximum file position (DEPRECATED)</p></td>
<td class="struct_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="g3d-iff-gdata"></a><h3>g3d_iff_gdata</h3>
<pre class="programlisting">#define g3d_iff_gdata G3DIffGlobal
</pre>
<p>IFF global data (deprecated).</p>
</div>
<hr>
<div class="refsect2">
<a name="G3DIffLocal"></a><h3>G3DIffLocal</h3>
<pre class="programlisting">typedef struct {
guint32 id;
guint32 parent_id;
gpointer object;
gint32 level;
gpointer level_object;
gint32 nb;
gboolean finalize;
} G3DIffLocal;
</pre>
<p>The function-local data for IFF callback functions.</p>
<div class="refsect3">
<a name="id-1.3.4.8.14.5"></a><h4>Members</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="300px" class="struct_members_name">
<col class="struct_members_description">
<col width="200px" class="struct_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="struct_member_name"><p><span class="type">guint32</span> <em class="structfield"><code><a name="G3DIffLocal.id"></a>id</code></em>;</p></td>
<td class="struct_member_description"><p>chunk identifier</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><span class="type">guint32</span> <em class="structfield"><code><a name="G3DIffLocal.parent-id"></a>parent_id</code></em>;</p></td>
<td class="struct_member_description"><p>parent chunk identifier</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><span class="type">gpointer</span> <em class="structfield"><code><a name="G3DIffLocal.object"></a>object</code></em>;</p></td>
<td class="struct_member_description"><p>an object set by parent callbacks, may be NULL</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><span class="type">gint32</span> <em class="structfield"><code><a name="G3DIffLocal.level"></a>level</code></em>;</p></td>
<td class="struct_member_description"><p>level of chunk</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><span class="type">gpointer</span> <em class="structfield"><code><a name="G3DIffLocal.level-object"></a>level_object</code></em>;</p></td>
<td class="struct_member_description"><p>object shared by callbacks on the same level, may be NULL</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><span class="type">gint32</span> <em class="structfield"><code><a name="G3DIffLocal.nb"></a>nb</code></em>;</p></td>
<td class="struct_member_description"><p>number of bytes remaining in chunk, has to be decremented after
correctly after reading from stream</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><span class="type">gboolean</span> <em class="structfield"><code><a name="G3DIffLocal.finalize"></a>finalize</code></em>;</p></td>
<td class="struct_member_description"><p>for container chunks the callback function is called before
and after processing possible sub-chunks, the second time <em class="parameter"><code>finalize</code></em>
is set
to TRUE</p></td>
<td class="struct_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="g3d-iff-ldata"></a><h3>g3d_iff_ldata</h3>
<pre class="programlisting">#define g3d_iff_ldata G3DIffLocal
</pre>
<p>IFF local data (deprecated).</p>
</div>
</div>
</div>
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