63 lines
1.7 KiB
C++
63 lines
1.7 KiB
C++
// filetype.cpp
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//
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// Copyright (C) 2001, Chris Laurel <claurel@shatters.net>
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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#include <cctype>
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#include "filetype.h"
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using namespace std;
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static const string JPEGExt(".jpg");
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static const string BMPExt(".bmp");
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static const string TargaExt(".tga");
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static const string ThreeDSExt(".3ds");
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static const string CelestiaTextureExt(".ctx");
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static const string CelestiaMeshExt(".cms");
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static int compareIgnoringCase(const string& s1, const string& s2)
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{
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string::const_iterator i1 = s1.begin();
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string::const_iterator i2 = s2.begin();
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while (i1 != s1.end() && i2 != s2.end())
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{
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if (toupper(*i1) != toupper(*i2))
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return (toupper(*i1) < toupper(*i2)) ? -1 : 1;
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++i1;
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++i2;
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}
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return s2.size() - s1.size();
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}
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ContentType DetermineFileType(const string& filename)
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{
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int extPos = filename.length() - 4;
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if (extPos < 0)
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extPos = 0;
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string ext = string(filename, extPos, 4);
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if (compareIgnoringCase(JPEGExt, ext) == 0)
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return Content_JPEG;
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else if (compareIgnoringCase(BMPExt, ext) == 0)
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return Content_BMP;
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else if (compareIgnoringCase(TargaExt, ext) == 0)
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return Content_Targa;
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else if (compareIgnoringCase(ThreeDSExt, ext) == 0)
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return Content_3DStudio;
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else if (compareIgnoringCase(CelestiaTextureExt, ext) == 0)
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return Content_CelestiaTexture;
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else if (compareIgnoringCase(CelestiaMeshExt, ext) == 0)
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return Content_CelestiaMesh;
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else
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return Content_Unknown;
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}
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