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<h1 id="lzw-streams">LZW Streams<a class="headerlink" href="#lzw-streams" title="Permanent link">¶</a></h1>
<h2 id="synopsis">Synopsis<a class="headerlink" href="#synopsis" title="Permanent link">¶</a></h2>
+<p>In certain builds of the library, LZW compression recognition is automatically handled when calling <code><a href="ft2-base_interface.html#ft_new_face">FT_New_Face</a></code> or <code><a href="ft2-base_interface.html#ft_open_face">FT_Open_Face</a></code>. This means that if no font driver is capable of handling the raw compressed file, the library will try to open a LZW stream from it and re-open the face with it.</p>
+<p>The stream implementation is very basic and resets the decompression process each time seeking backwards is needed within the stream, which significantly undermines the performance.</p>
<p>This section contains the declaration of LZW-specific functions.</p>
<h2 id="ft_stream_openlzw">FT_Stream_OpenLZW<a class="headerlink" href="#ft_stream_openlzw" title="Permanent link">¶</a></h2>
<p>Defined in FT_LZW_H (freetype/ftlzw.h).</p>
-<div class = "codehilite">
-<pre>
- FT_EXPORT( <a href="ft2-basic_types.html#ft_error">FT_Error</a> )
+<div class = "codehilite"><pre><code> FT_EXPORT( <a href="ft2-basic_types.html#ft_error">FT_Error</a> )
<b>FT_Stream_OpenLZW</b>( <a href="ft2-system_interface.html#ft_stream">FT_Stream</a> stream,
<a href="ft2-system_interface.html#ft_stream">FT_Stream</a> source );
-</pre>
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<p>Open a new stream to parse LZW-compressed font files. This is mainly used to support the compressed <code>*.pcf.Z</code> fonts that come with XFree86.</p>
<h4>input</h4>
<p>The source stream must be opened <em>before</em> calling this function.</p>
<p>Calling the internal function <code>FT_Stream_Close</code> on the new stream will <strong>not</strong> call <code>FT_Stream_Close</code> on the source stream. None of the stream objects will be released to the heap.</p>
-<p>The stream implementation is very basic and resets the decompression process each time seeking backwards is needed within the stream</p>
-<p>In certain builds of the library, LZW compression recognition is automatically handled when calling <code><a href="ft2-base_interface.html#ft_new_face">FT_New_Face</a></code> or <code><a href="ft2-base_interface.html#ft_open_face">FT_Open_Face</a></code>. This means that if no font driver is capable of handling the raw compressed file, the library will try to open a LZW stream from it and re-open the face with it.</p>
<p>This function may return <code>FT_Err_Unimplemented_Feature</code> if your build of FreeType was not compiled with LZW support.</p>
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