wavepacket-lib/lib/wave-jpeg/test/test.cpp

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00001 /*
00002  * test.cpp
00003  *
00004  * Copyright (C) 2009  Thomas A. Vaughan
00005  * All rights reserved.
00006  *
00007  *
00008  * Redistribution and use in source and binary forms, with or without
00009  * modification, are permitted provided that the following conditions are met:
00010  *     * Redistributions of source code must retain the above copyright
00011  *       notice, this list of conditions and the following disclaimer.
00012  *     * Redistributions in binary form must reproduce the above copyright
00013  *       notice, this list of conditions and the following disclaimer in the
00014  *       documentation and/or other materials provided with the distribution.
00015  *     * Neither the name of the <organization> nor the
00016  *       names of its contributors may be used to endorse or promote products
00017  *       derived from this software without specific prior written permission.
00018  *
00019  * THIS SOFTWARE IS PROVIDED BY THOMAS A. VAUGHAN ''AS IS'' AND ANY
00020  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
00021  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
00022  * DISCLAIMED. IN NO EVENT SHALL THOMAS A. VAUGHAN BE LIABLE FOR ANY
00023  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
00024  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
00025  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
00026  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
00027  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00028  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00029  *
00030  *
00031  * Test for the wave-jpeg library.
00032  */
00033 
00034 // includes --------------------------------------------------------------------
00035 #include "wave-jpeg/wave-jpeg.h"
00036 
00037 #include <iostream>
00038 
00039 #include "common/wave_ex.h"
00040 #include "nstream/nstream.h"
00041 #include "perf/perf.h"
00042 #include "util/file.h"
00043 
00044 
00045 
00046 ////////////////////////////////////////////////////////////////////////////////
00047 //
00048 //      static helper methods
00049 //
00050 ////////////////////////////////////////////////////////////////////////////////
00051 
00052 static void
00053 doTest
00054 (
00055 IN const char * filename
00056 )
00057 {
00058         ASSERT(filename, "null");
00059 
00060         // create filesystem manager
00061         std::string parentDir;
00062         GetParentDirectory(filename, parentDir);
00063 
00064         smart_ptr<nstream::Manager> mgr =
00065             nstream::getFilesystemManager(parentDir.c_str());
00066         ASSERT_THROW(mgr, "failed to create filesystem manager for path: "
00067             << parentDir);
00068 
00069         // create a JPEG image loader
00070         smart_ptr<media::ImageLoader> loader = media::createJpegImageLoader();
00071         ASSERT_THROW(loader, "failed to create JPEG loader");
00072 
00073         // now load JPEG
00074         // note: do NOT load images this way normally!  Use the
00075         //      media::loadImage() call instead.
00076         // we're using the ImageLoader interface only for testing
00077         const char * name = GetFilename(filename);
00078 
00079         ASSERT_THROW(loader->canLoadImage(mgr, name),
00080             "JPEG loader says it can't load file: " << filename);
00081 
00082         smart_ptr<nstream::File> file = mgr->getEntry(name);
00083         ASSERT_THROW(file, "path is not a file: " << filename);
00084 
00085         smart_ptr<nstream::Stream> stream = file->openStream();
00086         ASSERT_THROW(stream, "could not open stream on file: " << filename);
00087 
00088         media::image_t image;
00089         loader->load(stream, image);
00090         ASSERT_THROW(image.isValid(), "Loaded image but it is not valid?");
00091 
00092         image.dump(filename);
00093 }
00094 
00095 
00096 
00097 ////////////////////////////////////////////////////////////////////////////////
00098 //
00099 //      entry point
00100 //
00101 ////////////////////////////////////////////////////////////////////////////////
00102 
00103 int
00104 main
00105 (
00106 IN int argc,
00107 IN const char * argv[]
00108 )
00109 {
00110         ASSERT(2 == argc, "usage: wave-jpeg-test <jpeg-filename>");
00111         const char * filename = argv[1];
00112 
00113         int retval = 0;
00114         try {
00115                 perf::Timer timer("test -- overall timer");
00116                 doTest(filename);
00117 
00118         } catch (std::exception& e) {
00119                 DPRINTF("Exception: %s", e.what());
00120                 retval = 1;
00121         } catch (...) {
00122                 DPRINTF("Unknown exception!");
00123                 retval = 2;
00124         }
00125         perf::dumpTimingSummary(std::cerr);
00126 
00127         return retval;
00128 }
00129