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<h1>Source code for PIL.PcdImagePlugin</h1><div class="highlight"><pre>
<span></span><span class="c1">#</span>
<span class="c1"># The Python Imaging Library.</span>
<span class="c1"># $Id$</span>
<span class="c1">#</span>
<span class="c1"># PCD file handling</span>
<span class="c1">#</span>
<span class="c1"># History:</span>
<span class="c1"># 96-05-10 fl Created</span>
<span class="c1"># 96-05-27 fl Added draft mode (128x192, 256x384)</span>
<span class="c1">#</span>
<span class="c1"># Copyright (c) Secret Labs AB 1997.</span>
<span class="c1"># Copyright (c) Fredrik Lundh 1996.</span>
<span class="c1">#</span>
<span class="c1"># See the README file for information on usage and redistribution.</span>
<span class="c1">#</span>
<span class="kn">from</span> <span class="nn">.</span> <span class="k">import</span> <span class="n">Image</span><span class="p">,</span> <span class="n">ImageFile</span>
<span class="kn">from</span> <span class="nn">._binary</span> <span class="k">import</span> <span class="n">i8</span>
<span class="n">__version__</span> <span class="o">=</span> <span class="s2">"0.1"</span>
<span class="c1">##</span>
<span class="c1"># Image plugin for PhotoCD images. This plugin only reads the 768x512</span>
<span class="c1"># image from the file; higher resolutions are encoded in a proprietary</span>
<span class="c1"># encoding.</span>
<div class="viewcode-block" id="PcdImageFile"><a class="viewcode-back" href="../../reference/plugins.html#PIL.PcdImagePlugin.PcdImageFile">[docs]</a><span class="k">class</span> <span class="nc">PcdImageFile</span><span class="p">(</span><span class="n">ImageFile</span><span class="o">.</span><span class="n">ImageFile</span><span class="p">):</span>
<span class="nb">format</span> <span class="o">=</span> <span class="s2">"PCD"</span>
<span class="n">format_description</span> <span class="o">=</span> <span class="s2">"Kodak PhotoCD"</span>
<span class="k">def</span> <span class="nf">_open</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="c1"># rough</span>
<span class="bp">self</span><span class="o">.</span><span class="n">fp</span><span class="o">.</span><span class="n">seek</span><span class="p">(</span><span class="mi">2048</span><span class="p">)</span>
<span class="n">s</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">2048</span><span class="p">)</span>
<span class="k">if</span> <span class="n">s</span><span class="p">[:</span><span class="mi">4</span><span class="p">]</span> <span class="o">!=</span> <span class="sa">b</span><span class="s2">"PCD_"</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">SyntaxError</span><span class="p">(</span><span class="s2">"not a PCD file"</span><span class="p">)</span>
<span class="n">orientation</span> <span class="o">=</span> <span class="n">i8</span><span class="p">(</span><span class="n">s</span><span class="p">[</span><span class="mi">1538</span><span class="p">])</span> <span class="o">&</span> <span class="mi">3</span>
<span class="bp">self</span><span class="o">.</span><span class="n">tile_post_rotate</span> <span class="o">=</span> <span class="kc">None</span>
<span class="k">if</span> <span class="n">orientation</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">tile_post_rotate</span> <span class="o">=</span> <span class="mi">90</span>
<span class="k">elif</span> <span class="n">orientation</span> <span class="o">==</span> <span class="mi">3</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">tile_post_rotate</span> <span class="o">=</span> <span class="o">-</span><span class="mi">90</span>
<span class="bp">self</span><span class="o">.</span><span class="n">mode</span> <span class="o">=</span> <span class="s2">"RGB"</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_size</span> <span class="o">=</span> <span class="mi">768</span><span class="p">,</span> <span class="mi">512</span> <span class="c1"># FIXME: not correct for rotated images!</span>
<span class="bp">self</span><span class="o">.</span><span class="n">tile</span> <span class="o">=</span> <span class="p">[(</span><span class="s2">"pcd"</span><span class="p">,</span> <span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span><span class="o">+</span><span class="bp">self</span><span class="o">.</span><span class="n">size</span><span class="p">,</span> <span class="mi">96</span><span class="o">*</span><span class="mi">2048</span><span class="p">,</span> <span class="kc">None</span><span class="p">)]</span>
<div class="viewcode-block" id="PcdImageFile.load_end"><a class="viewcode-back" href="../../reference/plugins.html#PIL.PcdImagePlugin.PcdImageFile.load_end">[docs]</a> <span class="k">def</span> <span class="nf">load_end</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">tile_post_rotate</span><span class="p">:</span>
<span class="c1"># Handle rotated PCDs</span>
<span class="bp">self</span><span class="o">.</span><span class="n">im</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">im</span><span class="o">.</span><span class="n">rotate</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">tile_post_rotate</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_size</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">im</span><span class="o">.</span><span class="n">size</span></div></div>
<span class="c1">#</span>
<span class="c1"># registry</span>
<span class="n">Image</span><span class="o">.</span><span class="n">register_open</span><span class="p">(</span><span class="n">PcdImageFile</span><span class="o">.</span><span class="n">format</span><span class="p">,</span> <span class="n">PcdImageFile</span><span class="p">)</span>
<span class="n">Image</span><span class="o">.</span><span class="n">register_extension</span><span class="p">(</span><span class="n">PcdImageFile</span><span class="o">.</span><span class="n">format</span><span class="p">,</span> <span class="s2">".pcd"</span><span class="p">)</span>
</pre></div>
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