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<a href="#libgimp-gimptile.description" class="shortcut">Description</a>
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<h2><span class="refentrytitle"><a name="libgimp-gimptile.top_of_page"></a>gimptile</span></h2>
<p>gimptile — Functions for working with tiles.</p>
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<div class="refsynopsisdiv">
<a name="libgimp-gimptile.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis"> <a class="link" href="libgimp-gimptile.html#GimpTile" title="GimpTile">GimpTile</a>;
<span class="returnvalue">void</span> <a class="link" href="libgimp-gimptile.html#gimp-tile-ref" title="gimp_tile_ref ()">gimp_tile_ref</a> (<em class="parameter"><code><a class="link" href="libgimp-gimptile.html#GimpTile" title="GimpTile"><span class="type">GimpTile</span></a> *tile</code></em>);
<span class="returnvalue">void</span> <a class="link" href="libgimp-gimptile.html#gimp-tile-ref-zero" title="gimp_tile_ref_zero ()">gimp_tile_ref_zero</a> (<em class="parameter"><code><a class="link" href="libgimp-gimptile.html#GimpTile" title="GimpTile"><span class="type">GimpTile</span></a> *tile</code></em>);
<span class="returnvalue">void</span> <a class="link" href="libgimp-gimptile.html#gimp-tile-unref" title="gimp_tile_unref ()">gimp_tile_unref</a> (<em class="parameter"><code><a class="link" href="libgimp-gimptile.html#GimpTile" title="GimpTile"><span class="type">GimpTile</span></a> *tile</code></em>,
<em class="parameter"><code><span class="type">gboolean</span> dirty</code></em>);
<span class="returnvalue">void</span> <a class="link" href="libgimp-gimptile.html#gimp-tile-flush" title="gimp_tile_flush ()">gimp_tile_flush</a> (<em class="parameter"><code><a class="link" href="libgimp-gimptile.html#GimpTile" title="GimpTile"><span class="type">GimpTile</span></a> *tile</code></em>);
<span class="returnvalue">void</span> <a class="link" href="libgimp-gimptile.html#gimp-tile-cache-size" title="gimp_tile_cache_size ()">gimp_tile_cache_size</a> (<em class="parameter"><code><span class="type">gulong</span> kilobytes</code></em>);
<span class="returnvalue">void</span> <a class="link" href="libgimp-gimptile.html#gimp-tile-cache-ntiles" title="gimp_tile_cache_ntiles ()">gimp_tile_cache_ntiles</a> (<em class="parameter"><code><span class="type">gulong</span> ntiles</code></em>);
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<div class="refsect1">
<a name="libgimp-gimptile.description"></a><h2>Description</h2>
<p>
Functions for working with tiles.
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<a name="libgimp-gimptile.details"></a><h2>Details</h2>
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<a name="GimpTile"></a><h3>GimpTile</h3>
<pre class="programlisting">typedef struct {
guint ewidth; /* the effective width of the tile */
guint eheight; /* the effective height of the tile */
guint bpp; /* the bytes per pixel (1, 2, 3 or 4 ) */
guint tile_num; /* the number of this tile within the drawable */
guint16 ref_count; /* reference count for the tile */
guint dirty : 1; /* is the tile dirty? has it been modified? */
guint shadow: 1; /* is this a shadow tile */
guchar *data; /* the pixel data for the tile */
GimpDrawable *drawable; /* the drawable this tile came from */
} GimpTile;
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<div class="refsect2">
<a name="gimp-tile-ref"></a><h3>gimp_tile_ref ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> gimp_tile_ref (<em class="parameter"><code><a class="link" href="libgimp-gimptile.html#GimpTile" title="GimpTile"><span class="type">GimpTile</span></a> *tile</code></em>);</pre>
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<a name="gimp-tile-ref-zero"></a><h3>gimp_tile_ref_zero ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> gimp_tile_ref_zero (<em class="parameter"><code><a class="link" href="libgimp-gimptile.html#GimpTile" title="GimpTile"><span class="type">GimpTile</span></a> *tile</code></em>);</pre>
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<div class="refsect2">
<a name="gimp-tile-unref"></a><h3>gimp_tile_unref ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> gimp_tile_unref (<em class="parameter"><code><a class="link" href="libgimp-gimptile.html#GimpTile" title="GimpTile"><span class="type">GimpTile</span></a> *tile</code></em>,
<em class="parameter"><code><span class="type">gboolean</span> dirty</code></em>);</pre>
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</p>
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<div class="refsect2">
<a name="gimp-tile-flush"></a><h3>gimp_tile_flush ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> gimp_tile_flush (<em class="parameter"><code><a class="link" href="libgimp-gimptile.html#GimpTile" title="GimpTile"><span class="type">GimpTile</span></a> *tile</code></em>);</pre>
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<div class="refsect2">
<a name="gimp-tile-cache-size"></a><h3>gimp_tile_cache_size ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> gimp_tile_cache_size (<em class="parameter"><code><span class="type">gulong</span> kilobytes</code></em>);</pre>
<p>
Sets the size of the tile cache on the plug-in side. The tile cache
is used to reduce the number of tiles exchanged between the GIMP core
and the plug-in. See also <a class="link" href="libgimp-gimptile.html#gimp-tile-cache-ntiles" title="gimp_tile_cache_ntiles ()"><code class="function">gimp_tile_cache_ntiles()</code></a>.
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<td><p><span class="term"><em class="parameter"><code>kilobytes</code></em> :</span></p></td>
<td>new cache size in kilobytes</td>
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<div class="refsect2">
<a name="gimp-tile-cache-ntiles"></a><h3>gimp_tile_cache_ntiles ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> gimp_tile_cache_ntiles (<em class="parameter"><code><span class="type">gulong</span> ntiles</code></em>);</pre>
<p>
Sets the size of the tile cache on the plug-in side. This function
is similar to <a class="link" href="libgimp-gimptile.html#gimp-tile-cache-size" title="gimp_tile_cache_size ()"><code class="function">gimp_tile_cache_size()</code></a> but allows to specify the
number of tiles directly.
</p>
<p>
If your plug-in access pixels tile-by-tile, it doesn't need a tile
cache at all. If however the plug-in accesses drawable pixel data
row-by-row, it should set the tile cache large enough to hold the
number of tiles per row. Double this size if your plug-in uses
shadow tiles.
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<td><p><span class="term"><em class="parameter"><code>ntiles</code></em> :</span></p></td>
<td>number of tiles that should fit into the cache</td>
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