imeshloader.cpp

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/*
    Sheep - A Rigid Body Dynamics Engine
    Copyright (C) 2001-2004 Francois Beaune
    Contact: http://toxicengine.sourceforge.net/

    This file is part of Sheep.

    Sheep is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    Sheep is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with Sheep; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#include "imeshloader.h"    // include first
#include "common/misc/stringutils.h"

#include <cassert>
#include <IL/il.h>

using namespace sheep;
using namespace std;

bool sheep::LoadImage(const string &filename) {
    // Some images start with the origin in the lower left,
    // while others start with the origin in the upper left.
    ilEnable(IL_ORIGIN_SET);
    ilOriginFunc(IL_ORIGIN_UPPER_LEFT);

    assert(ilGetError() == IL_NO_ERROR);
    assert(ilGetInteger(IL_ORIGIN_MODE) == IL_ORIGIN_UPPER_LEFT);

    const bool successful =
        ilLoadImage(const_cast<ILstring>(filename.c_str())) == IL_TRUE ? true : false;

    // Discard loading errors.
    while(ilGetError() != IL_NO_ERROR);

    return successful;
}

bool sheep::TryLoadingImage(const string &path, const string &filename) {
    if(LoadImage(path + filename))
        return true;

    if(LoadImage(filename))
        return true;

    if(LoadImage(path + StringUtils::GetFilename(filename)))
        return true;

    return false;
}

FILE *sheep::TryOpeningFile(const string &path,
                            const string &filename,
                            const char *mode)
{
    FILE *file;

    if((file = fopen((path + filename).c_str(), mode)))
        return file;

    if((file = fopen(filename.c_str(), mode)))
        return file;

    if((file = fopen((path + StringUtils::GetFilename(filename)).c_str(), mode)))
        return file;

    return 0;
}

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