Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/iclspmoexample_8cpp-source.html
author Dominic Pinkman <Dominic.Pinkman@Nokia.com>
Thu, 11 Mar 2010 15:24:26 +0000
changeset 2 ebc84c812384
parent 1 25a17d01db0c
permissions -rw-r--r--
week 10 bug fix submission: Bug 1892, Bug 1897, Bug 1319. Also 3 or 4 documents were found to contain code blocks with SFL, which has been fixed. Partial fix for broken links, links to Forum Nokia, and the 'Symbian platform' terminology issues.
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
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<title>TB10.1 Example Applications: examples/Multimedia/ICL/ICLExample/iclspmoexample.cpp Source File</title>
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<link href="doxygen.css" rel="stylesheet" type="text/css">
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<link href="tabs.css" rel="stylesheet" type="text/css">
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</head><body>
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<!-- Generated by Doxygen 1.5.3 -->
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<h1>examples/Multimedia/ICL/ICLExample/iclspmoexample.cpp</h1><a href="iclspmoexample_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).</span>
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<a name="l00002"></a>00002 <span class="comment">// All rights reserved.</span>
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<a name="l00003"></a>00003 <span class="comment">// This component and the accompanying materials are made available</span>
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<a name="l00004"></a>00004 <span class="comment">// under the terms of "Eclipse Public License v1.0"</span>
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<a name="l00005"></a>00005 <span class="comment">// which accompanies this distribution, and is available</span>
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<a name="l00006"></a>00006 <span class="comment">// at the URL "http://www.eclipse.org/legal/epl-v10.html".</span>
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<a name="l00007"></a>00007 <span class="comment">//</span>
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<a name="l00008"></a>00008 <span class="comment">// Initial Contributors:</span>
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<a name="l00009"></a>00009 <span class="comment">// Nokia Corporation - initial contribution.</span>
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<a name="l00010"></a>00010 <span class="comment">//</span>
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<a name="l00011"></a>00011 <span class="comment">// Contributors:</span>
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<a name="l00012"></a>00012 <span class="comment">//</span>
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<a name="l00013"></a>00013 <span class="comment">// Description:</span>
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<a name="l00014"></a>00014 <span class="comment">// iclimageprocessorexample.cpp</span>
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<a name="l00015"></a>00015 <span class="comment">// The code demonstrates Caps Spmo Utility functionality</span>
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<a name="l00016"></a>00016 <span class="comment">//</span>
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<a name="l00017"></a>00017 
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<a name="l00018"></a>00018 
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<a name="l00019"></a>00019 
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<a name="l00024"></a>00024 <span class="preprocessor">#include "<a class="code" href="iclexample_8h.html">iclexample.h</a>"</span>
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<a name="l00025"></a>00025 <span class="preprocessor">#include &lt;capsspmoutility/capsspmoutility.h&gt;</span>
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<a name="l00027"></a>00027 <span class="keyword">using namespace </span>CapsSpmoUtility;
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<a name="l00029"></a><a class="code" href="class_c_icl_example.html#ffa7926ab6294a9cb96ca59ab6beed86">00029</a> <span class="keywordtype">void</span> <a class="code" href="class_c_icl_example.html#ffa7926ab6294a9cb96ca59ab6beed86">CIclExample::GeneratingSpmoL</a>()
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<a name="l00030"></a>00030         {
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<a name="l00031"></a>00031         <span class="comment">// Start new spmo optimized for QVGA screen size.</span>
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<a name="l00032"></a>00032         CCapsSpmo* spmo = CapsSpmoUtility::CCapsSpmoUtility::NewSpmoL(TSize(320, 240));
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<a name="l00033"></a>00033         CleanupStack::PushL(spmo);
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<a name="l00034"></a>00034 
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<a name="l00035"></a>00035         <span class="comment">// Generate spmo data from the input file</span>
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<a name="l00036"></a>00036         spmo-&gt;SetInputL(KInputFileName);
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<a name="l00037"></a>00037         spmo-&gt;GenerateFromInputL();
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<a name="l00038"></a>00038 
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<a name="l00039"></a>00039         <span class="comment">// Add the generated Spmo data to the output file.</span>
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<a name="l00040"></a>00040         spmo-&gt;AddToFileL(KInputWithSpmoFileName);
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<a name="l00041"></a>00041         
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<a name="l00042"></a>00042         CleanupStack::PopAndDestroy(spmo);
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<a name="l00043"></a>00043         }
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<a name="l00045"></a><a class="code" href="iclspmoexample_8cpp.html#ea3cfda4f3a9f978ec759f206cf186fe">00045</a> <span class="preprocessor">#define CHUNK_SIZE 8192 </span>
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<a name="l00046"></a><a class="code" href="class_c_icl_example.html#c0cb91c06d60b36516ee1113ec509bab">00046</a> <span class="preprocessor"></span><span class="keywordtype">void</span> <a class="code" href="class_c_icl_example.html#c0cb91c06d60b36516ee1113ec509bab">CIclExample::GeneratingSpmoIterativelyL</a>()
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<a name="l00047"></a>00047         {
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<a name="l00048"></a>00048         <span class="comment">// Start new spmo optimized for QVGA screen size.</span>
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<a name="l00049"></a>00049         CCapsSpmo* spmo = CapsSpmoUtility::CCapsSpmoUtility::NewSpmoL(TSize(320, 240));
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<a name="l00050"></a>00050         CleanupStack::PushL(spmo);
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<a name="l00051"></a>00051 
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<a name="l00052"></a>00052         RFile file;
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<a name="l00053"></a>00053         TInt fileSize = 0;
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<a name="l00054"></a>00054 
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<a name="l00055"></a>00055         <span class="comment">// Open the file for reading.</span>
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<a name="l00056"></a>00056         User::LeaveIfError(file.Open(iFs, KInputFileName, EFileRead));
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<a name="l00057"></a>00057         CleanupClosePushL(file);
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<a name="l00059"></a>00059     User::LeaveIfError(file.Size(fileSize));
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<a name="l00061"></a>00061         <span class="comment">// Prepare memory buffer for 8K chunk</span>
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<a name="l00062"></a>00062         HBufC8* chunk = HBufC8::NewMaxL(<a class="code" href="iclspmoexample_8cpp.html#ea3cfda4f3a9f978ec759f206cf186fe">CHUNK_SIZE</a>);
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<a name="l00063"></a>00063         TPtr8 chunkPtr = chunk-&gt;Des();
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<a name="l00065"></a>00065         <span class="comment">// We must reorder the cleanupstack.</span>
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<a name="l00066"></a>00066         CleanupStack::Pop(); <span class="comment">// file</span>
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<a name="l00067"></a>00067     CleanupStack::PushL(chunk);
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<a name="l00068"></a>00068     CleanupClosePushL(file);
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<a name="l00070"></a>00070     <span class="keywordflow">if</span> (file.SubSessionHandle())
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<a name="l00071"></a>00071                 {
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<a name="l00072"></a>00072                 <span class="comment">// Begin spmo streaming</span>
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<a name="l00073"></a>00073                 spmo-&gt;BeginInputStreamL();
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<a name="l00075"></a>00075                 TInt leftToRead = fileSize;
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<a name="l00076"></a>00076                 <span class="keywordflow">while</span> (leftToRead &gt;= <a class="code" href="iclspmoexample_8cpp.html#ea3cfda4f3a9f978ec759f206cf186fe">CHUNK_SIZE</a>)
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<a name="l00077"></a>00077                         {
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<a name="l00078"></a>00078                         leftToRead -= <a class="code" href="iclspmoexample_8cpp.html#ea3cfda4f3a9f978ec759f206cf186fe">CHUNK_SIZE</a>;
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<a name="l00079"></a>00079                         User::LeaveIfError(file.Read(chunkPtr, <a class="code" href="iclspmoexample_8cpp.html#ea3cfda4f3a9f978ec759f206cf186fe">CHUNK_SIZE</a>)); 
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<a name="l00080"></a>00080                         spmo-&gt;ContinueInputStreamL(chunkPtr);                   
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<a name="l00081"></a>00081                         }       
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<a name="l00082"></a>00082 
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<a name="l00083"></a>00083                 <span class="keywordflow">if</span> (leftToRead != 0) 
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<a name="l00084"></a>00084                         {
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<a name="l00085"></a>00085                         User::LeaveIfError(file.Read(chunkPtr, leftToRead)); 
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<a name="l00086"></a>00086                         spmo-&gt;ContinueInputStreamL(chunkPtr);
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<a name="l00087"></a>00087                         }
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<a name="l00088"></a>00088 
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<a name="l00089"></a>00089                 spmo-&gt;EndInputStreamL();
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<a name="l00090"></a>00090                 }
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<a name="l00091"></a>00091 
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<a name="l00092"></a>00092         <span class="comment">// Generate spmo data from the processed input stream.</span>
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<a name="l00093"></a>00093         spmo-&gt;GenerateFromInputL();
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<a name="l00094"></a>00094         
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<a name="l00095"></a>00095         CleanupStack::PopAndDestroy(2); <span class="comment">// file chunk</span>
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<a name="l00096"></a>00096 
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<a name="l00097"></a>00097         <span class="comment">// Get just generated spmo data and save it to a binary file.</span>
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<a name="l00098"></a>00098         TPtr8 spmoData = spmo-&gt;BufferL();
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<a name="l00099"></a>00099 
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<a name="l00100"></a>00100         <span class="comment">// Open the file for writing.</span>
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<a name="l00101"></a>00101         User::LeaveIfError(file.Replace(iFs, KSpmoFileName, EFileWrite));
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<a name="l00102"></a>00102         CleanupClosePushL(file);
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<a name="l00103"></a>00103 
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<a name="l00104"></a>00104         User::LeaveIfError(file.Write(spmoData)); 
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<a name="l00105"></a>00105         
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<a name="l00106"></a>00106         CleanupStack::PopAndDestroy(2,spmo); <span class="comment">// file spmo</span>
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<a name="l00107"></a>00107         }
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</pre></div><hr size="1"><address style="text-align: right;"><small>Generated on Thu Jan 21 10:32:59 2010 for TB10.1 Example Applications by&nbsp;
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<a href="http://www.doxygen.org/index.html">
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<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.3 </small></address>
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</body>
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</html>