/*      _______   __   __   __   ______   __   __   _______   __   __                  *     / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___  /\ /  |\/ /\                 *    / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /                  *   / / /__   / / // / // / // / /    / ___  / // ___  / // /| ' / /                   *  / /_// /\ / /_// / // / // /_/_   / / // / // /\_/ / // / |  / /                    * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /                     * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/                       * * Copyright (c) 2004, 2005 darkbits                        Js_./ * Per Larsson a.k.a finalman                          _RqZ{a<^_aa * Olof Naess閚 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@\ *    this list of conditions and the           j(]1u<sE"L,. .   ./^ ]{a *    following disclaimer.                     4'_uomm\.  )L);-4     (3= * 2. Redistributions in binary form must        )_]X{Z('a_"a7'<a"a,  ]"[ *    reproduce the above copyright notice,       #}<]m7`Za??4,P-"'7. ).m *    this list of conditions and the            ]d2e)Q(<Q(  ?94   b-  LQ/ *    following disclaimer in the                <B!</]C)d_, '(<' .f. =C+m *    documentation and/or other materials      .Z!=J ]e []('-4f _ ) -.)m]' *    provided with the distribution.          .w[5]' _[ /.)_-"+?   _/ <W" * 3. Neither the name of Guichan nor the      :$we` _! + _/ .        j? *    names of its contributors may be used     =3)= _f  (_yQmWW$#(    " *    to endorse or promote products derived     -   W,  sQQQQmZQ#Wwa].. *    from this software without specific        (js, \[QQW$QWW#?!V"". *    prior written permission.                    ]y:.<\..          . *                                                 -]n w/ '         [. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT       )/ )/           ! * HOLDERS AND CONTRIBUTORS "AS IS" AND ANY         <  (; sac    ,    ' * EXPRESS OR IMPLIED WARRANTIES, INCLUDING,               ]^ .-  % * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF            c <   r * MERCHANTABILITY AND FITNESS FOR A PARTICULAR            aga<  <La * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE          5%  )P'-3L * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR        _bQf` y`..)a * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,          ,J?4P'.P"_(\?d'., * EXEMPLARY, OR CONSEQUENTIAL DAMAGES               _Pa,)!f/<[]/  ?" * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT      _2-..:. .r+_,.. . * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,     ?a.<%"'  " -'.a_ _, * 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. *//* * For comments regarding functions please see the header file.  */#ifdef USE_SDL_IMAGE#include <SDL/SDL_image.h>#include "guichan/sdl/sdlimageloader.h"#include "guichan/exception.h"#include "guichan/sdl/sdlpixel.h"namespace gcn{    SDLImageLoader::SDLImageLoader()    {        mCurrentImage = NULL;        }      void SDLImageLoader::prepare(const std::string& filename)    {        if (mCurrentImage != NULL)        {            throw GCN_EXCEPTION("Function called before finalizing or discarding last loaded image.");        }        SDL_Surface* tmp = IMG_Load(filename.c_str());        if (tmp == NULL)        {            throw GCN_EXCEPTION(std::string("Unable to load image file: ")+filename);        }        Uint32 rmask, gmask, bmask, amask;#if SDL_BYTEORDER == SDL_BIG_ENDIAN        rmask = 0xff000000;        gmask = 0x00ff0000;        bmask = 0x0000ff00;        amask = 0x000000ff;#else        rmask = 0x000000ff;        gmask = 0x0000ff00;        bmask = 0x00ff0000;        amask = 0xff000000;#endif            mCurrentImage = SDL_CreateRGBSurface(SDL_SWSURFACE, 0, 0, 32,                                             rmask, gmask, bmask, amask);            if (mCurrentImage == NULL)        {            throw GCN_EXCEPTION(std::string("Not enough memory to load: ")+filename);        }            SDL_Surface* tmp2 = SDL_ConvertSurface(tmp, mCurrentImage->format, SDL_SWSURFACE);        SDL_FreeSurface(tmp);        SDL_FreeSurface(mCurrentImage);        mCurrentImage = tmp2;        }    void* SDLImageLoader::getRawData()    {        return mCurrentImage->pixels;    }      void* SDLImageLoader::finalize()    {        if (mCurrentImage == NULL)        {            throw GCN_EXCEPTION("No image prepared.");        }        int i;        bool hasPink = false;        bool hasAlpha = false;            for (i = 0; i < mCurrentImage->w * mCurrentImage->h; ++i)        {            if (((unsigned int*)mCurrentImage->pixels)[i] == SDL_MapRGB(mCurrentImage->format,255,0,255))            {                hasPink = true;                break;            }        }            for (i = 0; i < mCurrentImage->w * mCurrentImage->h; ++i)        {            Uint8 r, g, b, a;                  SDL_GetRGBA(((unsigned int*)mCurrentImage->pixels)[i], mCurrentImage->format,                        &r, &g, &b, &a);            if (a != 255)            {                hasAlpha = true;                break;            }              }        // Don't convert 32bpp images with alpha, it will destroy the        // alpha channel.        SDL_Surface *temp;        if (hasAlpha)        {            temp = mCurrentImage;            mCurrentImage = NULL;        }        else        {            temp = SDL_DisplayFormat(mCurrentImage);            SDL_FreeSurface(mCurrentImage);            mCurrentImage = NULL;        }            if (hasPink)        {            SDL_SetColorKey(temp, SDL_SRCCOLORKEY,                            SDL_MapRGB(temp->format,255,0,255));        }        if (hasAlpha)        {            SDL_SetAlpha(temp, SDL_SRCALPHA, 255);        }            return temp;        }      void SDLImageLoader::discard()    {        if (mCurrentImage == NULL)        {            throw GCN_EXCEPTION("No image prepared.");        }            SDL_FreeSurface(mCurrentImage);            mCurrentImage = NULL;        }      void SDLImageLoader::free(Image* image)    {        if (image->_getData() == NULL)        {            throw GCN_EXCEPTION("Image data points to null.");        }            SDL_FreeSurface((SDL_Surface*)image->_getData());        }      int SDLImageLoader::getWidth() const    {        if (mCurrentImage == NULL)        {            throw GCN_EXCEPTION("No image prepared.");        }            return mCurrentImage->w;    }    int SDLImageLoader::getHeight() const    {        if (mCurrentImage == NULL)        {            throw GCN_EXCEPTION("No image prepared.");        }            return mCurrentImage->h;    }    Color SDLImageLoader::getPixel(int x, int y)    {        if (mCurrentImage == NULL)        {            throw GCN_EXCEPTION("No image prepared.");        }        if (x < 0 || y < 0 || x >= mCurrentImage->w || y >= mCurrentImage->h)        {            throw GCN_EXCEPTION("x and y out of image bound.");        }        return SDLgetPixel(mCurrentImage, x, y);        }    void SDLImageLoader::putPixel(int x, int y, const Color& color)    {        if (mCurrentImage == NULL)        {            throw GCN_EXCEPTION("No image prepared.");        }        if (x < 0 || y < 0 || x >= mCurrentImage->w || y >= mCurrentImage->h)        {            throw GCN_EXCEPTION("x and y out of image bound.");        }            SDLputPixel(mCurrentImage, x, y, color);        }}#endif