libmesh/plugins/nvtt/FreeImage.hpp

Go to the documentation of this file.

/*  Sirikata
 *  FreeImage.hpp
 *
 *  Copyright (c) 2011, Ewen Cheslack-Postava
 *  All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions are
 *  met:
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *  * Neither the name of Sirikata nor the names of its contributors may
 *    be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _SIRIKATA_MESH_NVTT_PLUGIN_FREEIMAGE_HPP_
#define _SIRIKATA_MESH_NVTT_PLUGIN_FREEIMAGE_HPP_

#include <FreeImage.h>

// This file provides some minimal utilities around FreeImage used by a couple
// of different filters.

namespace Sirikata {

extern bool freeimage_initialized;

void InitFreeImage();

static FIBITMAP* GenericLoader(const char* fname, int flag) {
    FREE_IMAGE_FORMAT fif = FIF_UNKNOWN;
    // check the file signature and deduce its format
    // (the second argument is currently not used by FreeImage)
    fif = FreeImage_GetFileType(fname, 0);
    if(fif == FIF_UNKNOWN) {
        // no signature ?
        // try to guess the file format from the file extension
        fif = FreeImage_GetFIFFromFilename(fname);
    }
    // check that the plugin has reading capabilities ...
    if((fif != FIF_UNKNOWN) && FreeImage_FIFSupportsReading(fif)) {
        // ok, let's load the file
        FIBITMAP *dib = FreeImage_Load(fif, fname, flag);
        // unless a bad file format, we are done !
        return dib;
    }
    return NULL;
}

} // namespace Sirikata

#endif //_SIRIKATA_MESH_NVTT_PLUGIN_FREEIMAGE_HPP_