/*      _______   __   __   __   ______   __   __   _______   __   __
 *     / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___  /\ /  |\/ /\
 *    / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
 *   / / /__   / / // / // / // / /    / ___  / // ___  / // /| ' / /
 *  / /_// /\ / /_// / // / // /_/_   / / // / // /\_/ / // / |  / /
 * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
 * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
 *
 * Copyright (c) 2004, 2005, 2006, 2007 Olof Naessén and Per Larsson
 *
 *                                                         Js_./
 * Per Larsson a.k.a finalman                          _RqZ{a<^_aa
 * Olof Naessén a.k.a jansem/yakslem                _asww7!uY`>  )\a//
 *                                                 _Qhm`] _f "'c  1!5m
 * Visit: http://guichan.darkbits.org             )Qk<P ` _: :+' .'  "{[
 *                                               .)j(] .d_/ '-(  P .   S
 * License: (BSD)                                <Td/Z <fP"5(\"??"\a.  .L
 * Redistribution and use in source and          _dV>ws?a-?'      ._/L  #'
 * binary forms, with or without                 )4d[#7r, .   '     )d`)[
 * modification, are permitted provided         _Q-5'5W..j/?'   -?!\)cam'
 * that the following conditions are met:       j<<WP+k/);.        _W=j f
 * 1. Redistributions of source code must       .$%w\/]Q  . ."'  .  mj$
 *    retain the above copyright notice,        ]E.pYY(Q]>.   a     J@\
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 *    reproduce the above copyright notice,       #}<]m7`Za??4,P-"'7. ).m
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 * 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.
 */

/*
 * For comments regarding functions please see the header file.
 */

#include "guichan/allegro/allegroimage.hpp"

#include "guichan/exception.hpp"

namespace gcn
{
    AllegroImage::AllegroImage(BITMAP* bitmap, bool autoFree)
    {
        mAutoFree = autoFree;
        mBitmap = bitmap;
    }

    AllegroImage::~AllegroImage()
    {
        if (mAutoFree)
        {
            free();
        }
    }

    BITMAP* AllegroImage::getBitmap() const
    {
        return mBitmap;
    }

    void AllegroImage::free()
    {
        destroy_bitmap(mBitmap);
    }

    int AllegroImage::getWidth() const
    {
        if (mBitmap == NULL)
        {
            throw GCN_EXCEPTION("Trying to get the width of a non loaded image.");
        }

        return mBitmap->w;
    }

    int AllegroImage::getHeight() const
    {
        if (mBitmap == NULL)
        {
            GCN_EXCEPTION("Trying to get the height of a non loaded image.");
        }

        return mBitmap->h;
    }

    Color AllegroImage::getPixel(int x, int y)
    {
        if (mBitmap == NULL)
        {
            throw GCN_EXCEPTION("Trying to get a pixel from a non loaded image.");
        }

        int c = getpixel(mBitmap, x, y);

        return Color(getr32(c), getg32(c), getb32(c), geta(32));
    }

    void AllegroImage::putPixel(int x, int y, const Color& color)
    {
        if (mBitmap == NULL)
        {
            throw GCN_EXCEPTION("Trying to put a pixel in a non loaded image.");
        }

        int c = makeacol_depth(32, color.r, color.g, color.b, color.a);

        putpixel(mBitmap, x, y, c);
    }

    void AllegroImage::convertToDisplayFormat()
    {
        if (mBitmap == NULL)
        {
            GCN_EXCEPTION("Trying to convert a non loaded image to display format.");
        }

        BITMAP *bmp = create_bitmap(mBitmap->w, mBitmap->h);

        blit(mBitmap, bmp, 0, 0, 0, 0, bmp->w, bmp->h);

        destroy_bitmap(mBitmap);

        mBitmap = bmp;
    }
}