Add missing guichan files.

5 files changed, 1402 insertions, 0 deletions

diff --git a/src/guichan/sdl/sdlgraphics.cpp b/src/guichan/sdl/sdlgraphics.cpp
new file mode 100644
index 000000000..8c4504a59
--- /dev/null
+++ b/src/guichan/sdl/sdlgraphics.cpp
@@ -0,0 +1,694 @@
+/*      _______   __   __   __   ______   __   __   _______   __   __
+ *     / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___  /\ /  |\/ /\
+ *    / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
+ *   / / /__   / / // / // / // / /    / ___  / // ___  / // /| ' / /
+ *  / /_// /\ / /_// / // / // /_/_   / / // / // /\_/ / // / |  / /
+ * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
+ * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
+ *
+ * Copyright (c) 2004 - 2008 Olof Naessén and Per Larsson
+ *
+ *
+ * Per Larsson a.k.a finalman
+ * Olof Naessén a.k.a jansem/yakslem
+ *
+ * Visit: http://guichan.sourceforge.net
+ *
+ * License: (BSD)
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. Neither the name of Guichan 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.
+ */
+
+/*
+ * For comments regarding functions please see the header file.
+ */
+
+#include "guichan/sdl/sdlgraphics.hpp"
+
+#include "guichan/exception.hpp"
+#include "guichan/font.hpp"
+#include "guichan/image.hpp"
+#include "guichan/sdl/sdlimage.hpp"
+#include "guichan/sdl/sdlpixel.hpp"
+
+// For some reason an old version of MSVC did not like std::abs,
+// so we added this macro.
+#ifndef ABS
+#define ABS(x) ((x)<0?-(x):(x))
+#endif
+
+namespace gcn
+{
+
+    SDLGraphics::SDLGraphics()
+    {
+        mAlpha = false;
+    }
+
+    void SDLGraphics::_beginDraw()
+    {
+        Rectangle area;
+        area.x = 0;
+        area.y = 0;
+        area.width = mTarget->w;
+        area.height = mTarget->h;
+        pushClipArea(area);
+    }
+
+    void SDLGraphics::_endDraw()
+    {
+        popClipArea();
+    }
+
+    void SDLGraphics::setTarget(SDL_Surface* target)
+    {
+        mTarget = target;
+    }
+
+    bool SDLGraphics::pushClipArea(Rectangle area)
+    {
+        SDL_Rect rect;
+        bool result = Graphics::pushClipArea(area);
+
+        const ClipRectangle& carea = mClipStack.top();
+        rect.x = carea.x;
+        rect.y = carea.y;
+        rect.w = carea.width;
+        rect.h = carea.height;
+
+        SDL_SetClipRect(mTarget, &rect);
+
+        return result;
+    }
+
+    void SDLGraphics::popClipArea()
+    {
+        Graphics::popClipArea();
+
+        if (mClipStack.empty())
+        {
+            return;
+        }
+
+        const ClipRectangle& carea = mClipStack.top();
+        SDL_Rect rect;
+        rect.x = carea.x;
+        rect.y = carea.y;
+        rect.w = carea.width;
+        rect.h = carea.height;
+
+        SDL_SetClipRect(mTarget, &rect);
+    }
+
+    SDL_Surface* SDLGraphics::getTarget() const
+    {
+        return mTarget;
+    }
+
+    void SDLGraphics::drawImage(const Image* image,
+                                int srcX,
+                                int srcY,
+                                int dstX,
+                                int dstY,
+                                int width,
+                                int height)
+    {
+        if (mClipStack.empty())
+        {
+            throw GCN_EXCEPTION("Clip stack is empty, perhaps you called a draw funtion outside of _beginDraw() and _endDraw()?");
+        }
+
+        const ClipRectangle& top = mClipStack.top();
+
+        SDL_Rect src;
+        SDL_Rect dst;
+        src.x = srcX;
+        src.y = srcY;
+        src.w = width;
+        src.h = height;
+        dst.x = dstX + top.xOffset;
+        dst.y = dstY + top.yOffset;
+
+        const SDLImage* srcImage = dynamic_cast<const SDLImage*>(image);
+
+        if (srcImage == NULL)
+        {
+            throw GCN_EXCEPTION("Trying to draw an image of unknown format, must be an SDLImage.");
+        }
+
+        SDL_BlitSurface(srcImage->getSurface(), &src, mTarget, &dst);
+    }
+
+    void SDLGraphics::fillRectangle(const Rectangle& rectangle)
+    {
+        if (mClipStack.empty())
+        {
+            throw GCN_EXCEPTION("Clip stack is empty, perhaps you called a draw funtion outside of _beginDraw() and _endDraw()?");
+        }
+
+        const ClipRectangle& top = mClipStack.top();
+        
+        Rectangle area = rectangle;
+        area.x += top.xOffset;
+        area.y += top.yOffset;
+
+        if(!area.isIntersecting(top))
+        {
+            return;
+        }
+
+        if (mAlpha)
+        {
+            int x1 = area.x > top.x ? area.x : top.x;
+            int y1 = area.y > top.y ? area.y : top.y;
+            int x2 = area.x + area.width < top.x + top.width ? area.x + area.width : top.x + top.width;
+            int y2 = area.y + area.height < top.y + top.height ? area.y + area.height : top.y + top.height;
+            int x, y;
+
+            SDL_LockSurface(mTarget);
+            for (y = y1; y < y2; y++)
+            {
+                for (x = x1; x < x2; x++)
+                {
+                    SDLputPixelAlpha(mTarget, x, y, mColor);
+                }
+            }
+            SDL_UnlockSurface(mTarget);
+
+        }
+        else
+        {
+            SDL_Rect rect;
+            rect.x = area.x;
+            rect.y = area.y;
+            rect.w = area.width;
+            rect.h = area.height;
+
+            Uint32 color = SDL_MapRGBA(mTarget->format,
+                                       mColor.r,
+                                       mColor.g,
+                                       mColor.b,
+                                       mColor.a);
+            SDL_FillRect(mTarget, &rect, color);
+        }
+    }
+
+    void SDLGraphics::drawPoint(int x, int y)
+    {
+        if (mClipStack.empty())
+        {
+            throw GCN_EXCEPTION("Clip stack is empty, perhaps you called a draw funtion outside of _beginDraw() and _endDraw()?");
+        }
+
+        const ClipRectangle& top = mClipStack.top();
+        
+        x += top.xOffset;
+        y += top.yOffset;
+
+        if(!top.isPointInRect(x,y))
+            return;
+
+        if (mAlpha)
+        {
+            SDLputPixelAlpha(mTarget, x, y, mColor);
+        }
+        else
+        {
+            SDLputPixel(mTarget, x, y, mColor);
+        }
+    }
+
+    void SDLGraphics::drawHLine(int x1, int y, int x2)
+    {
+        if (mClipStack.empty())
+        {
+            throw GCN_EXCEPTION("Clip stack is empty, perhaps you called a draw funtion outside of _beginDraw() and _endDraw()?");
+        }
+
+        const ClipRectangle& top = mClipStack.top();
+
+        x1 += top.xOffset;
+        y += top.yOffset;
+        x2 += top.xOffset;
+
+        if (y < top.y || y >= top.y + top.height)
+        {
+            return;
+        }
+
+        if (x1 > x2)
+        {
+            x1 ^= x2;
+            x2 ^= x1;
+            x1 ^= x2;
+        }
+
+        if (top.x > x1)
+        {
+            if (top.x > x2)
+            {
+                return;
+            }
+
+            x1 = top.x;
+        }
+
+        if (top.x + top.width <= x2)
+        {
+            if (top.x + top.width <= x1)
+            {
+                return;
+            }
+            
+            x2 = top.x + top.width -1;
+        }
+
+        int bpp = mTarget->format->BytesPerPixel;
+
+        SDL_LockSurface(mTarget);
+
+        Uint8 *p = (Uint8 *)mTarget->pixels + y * mTarget->pitch + x1 * bpp;
+
+        Uint32 pixel = SDL_MapRGB(mTarget->format,
+                                  mColor.r,
+                                  mColor.g,
+                                  mColor.b);
+        switch(bpp)
+        {
+            case 1:
+                for (;x1 <= x2; ++x1)
+                {
+                    *(p++) = pixel;
+                }
+                break;
+                
+            case 2:
+            {
+                Uint16* q = (Uint16*)p;
+                for (;x1 <= x2; ++x1)
+                {
+                    *(q++) = pixel;
+                }
+                break;
+            }
+            case 3:
+                if(SDL_BYTEORDER == SDL_BIG_ENDIAN)
+                {
+                    for (;x1 <= x2; ++x1)
+                    {
+                        p[0] = (pixel >> 16) & 0xff;
+                        p[1] = (pixel >> 8) & 0xff;
+                        p[2] = pixel & 0xff;
+                        p += 3;
+                    }
+                }
+                else
+                {
+                    for (;x1 <= x2; ++x1)
+                    {
+                        p[0] = pixel & 0xff;
+                        p[1] = (pixel >> 8) & 0xff;
+                        p[2] = (pixel >> 16) & 0xff;
+                        p += 3;
+                    }
+                }
+                break;
+
+            case 4:  
+            {          
+                Uint32* q = (Uint32*)p;
+                for (;x1 <= x2; ++x1)
+                {
+                    if (mAlpha)
+                    {
+                        *q = SDLAlpha32(pixel,*q,mColor.a);
+                        q++;
+                    }
+                    else
+                    {
+                        *(q++) = pixel;
+                    }
+                }
+                break;
+            }
+                
+        } // end switch
+
+        SDL_UnlockSurface(mTarget);
+    }
+
+    void SDLGraphics::drawVLine(int x, int y1, int y2)
+    {
+        if (mClipStack.empty())
+        {
+            throw GCN_EXCEPTION("Clip stack is empty, perhaps you called a draw funtion outside of _beginDraw() and _endDraw()?");
+        }
+
+        const ClipRectangle& top = mClipStack.top();
+
+        x += top.xOffset;
+        y1 += top.yOffset;
+        y2 += top.yOffset;
+
+        if (x < top.x || x >= top.x + top.width)
+        {
+            return;
+        }
+        
+        if (y1 > y2)
+        {
+            y1 ^= y2;
+            y2 ^= y1;
+            y1 ^= y2;
+        }
+
+        if (top.y > y1)
+        {
+            if (top.y > y2)
+            {
+                return;
+            }
+
+            y1 = top.y;
+        }
+
+        if (top.y + top.height <= y2)
+        {
+            if (top.y + top.height <= y1)
+            {
+                return;
+            }
+
+            y2 = top.y + top.height - 1;
+        }
+
+        int bpp = mTarget->format->BytesPerPixel;
+
+        SDL_LockSurface(mTarget);
+
+        Uint8 *p = (Uint8 *)mTarget->pixels + y1 * mTarget->pitch + x * bpp;
+
+        Uint32 pixel = SDL_MapRGB(mTarget->format, mColor.r, mColor.g, mColor.b);
+
+        switch(bpp)
+        {            
+          case 1:
+              for (;y1 <= y2; ++y1)
+              {
+                  *p = pixel;
+                  p += mTarget->pitch;
+              }
+              break;
+
+          case 2:
+              for (;y1 <= y2; ++y1)
+              {
+                  *(Uint16*)p = pixel;
+                  p += mTarget->pitch;
+              }
+              break;
+
+          case 3:
+              if(SDL_BYTEORDER == SDL_BIG_ENDIAN)
+              {
+                  for (;y1 <= y2; ++y1)
+                  {
+                      p[0] = (pixel >> 16) & 0xff;
+                      p[1] = (pixel >> 8) & 0xff;
+                      p[2] = pixel & 0xff;
+                      p += mTarget->pitch;
+                  }
+              }
+              else
+              {
+                  for (;y1 <= y2; ++y1)
+                  {
+                      p[0] = pixel & 0xff;
+                      p[1] = (pixel >> 8) & 0xff;
+                      p[2] = (pixel >> 16) & 0xff;
+                      p += mTarget->pitch;
+                  }
+              }
+              break;
+
+          case 4:
+              for (;y1 <= y2; ++y1)
+              {
+                  if (mAlpha)
+                  {
+                      *(Uint32*)p = SDLAlpha32(pixel,*(Uint32*)p,mColor.a);
+                  }
+                  else
+                  {
+                      *(Uint32*)p = pixel;
+                  }
+                  p += mTarget->pitch;
+              }
+              break;
+              
+        } // end switch
+        
+        SDL_UnlockSurface(mTarget);
+    }
+
+    void SDLGraphics::drawRectangle(const Rectangle& rectangle)
+    {
+        int x1 = rectangle.x;
+        int x2 = rectangle.x + rectangle.width - 1;
+        int y1 = rectangle.y;
+        int y2 = rectangle.y + rectangle.height - 1;
+
+        drawHLine(x1, y1, x2);
+        drawHLine(x1, y2, x2);
+
+        drawVLine(x1, y1, y2);
+        drawVLine(x2, y1, y2);
+    }
+
+    void SDLGraphics::drawLine(int x1, int y1, int x2, int y2)
+    {
+        if (x1 == x2)
+        {
+            drawVLine(x1, y1, y2);
+            return;
+        }
+        if (y1 == y2)
+        {
+            drawHLine(x1, y1, x2);
+            return;
+        }
+
+        if (mClipStack.empty())
+        {
+            throw GCN_EXCEPTION("Clip stack is empty, perhaps you called a draw funtion outside of _beginDraw() and _endDraw()?");
+        }
+
+        const ClipRectangle& top = mClipStack.top();
+
+        x1 += top.xOffset;
+        y1 += top.yOffset;
+        x2 += top.xOffset;
+        y2 += top.yOffset;
+
+        // Draw a line with Bresenham
+
+        int dx = ABS(x2 - x1);
+        int dy = ABS(y2 - y1);
+
+        if (dx > dy)
+        {
+            if (x1 > x2)
+            {
+                // swap x1, x2
+                x1 ^= x2;
+                x2 ^= x1;
+                x1 ^= x2;
+
+                // swap y1, y2
+                y1 ^= y2;
+                y2 ^= y1;
+                y1 ^= y2;
+            }
+
+            if (y1 < y2)
+            {
+                int y = y1;
+                int p = 0;
+
+                for (int x = x1; x <= x2; x++)
+                {
+                    if (top.isPointInRect(x, y))
+                    {
+                        if (mAlpha)
+                        {
+                            SDLputPixelAlpha(mTarget, x, y, mColor);
+                        }
+                        else
+                        {
+                            SDLputPixel(mTarget, x, y, mColor);
+                        }
+                    }
+
+                    p += dy;
+
+                    if (p * 2 >= dx)
+                    {
+                        y++;
+                        p -= dx;
+                    }
+                }
+            }
+            else
+            {
+                int y = y1;
+                int p = 0;
+
+                for (int x = x1; x <= x2; x++)
+                {
+                    if (top.isPointInRect(x, y))
+                    {
+                        if (mAlpha)
+                        {
+                            SDLputPixelAlpha(mTarget, x, y, mColor);
+                        }
+                        else
+                        {
+                            SDLputPixel(mTarget, x, y, mColor);
+                        }
+                    }
+
+                    p += dy;
+
+                    if (p * 2 >= dx)
+                    {
+                        y--;
+                        p -= dx;
+                    }
+                }
+            }
+        }
+        else
+        {
+            if (y1 > y2)
+            {
+                // swap y1, y2
+                y1 ^= y2;
+                y2 ^= y1;
+                y1 ^= y2;
+
+                // swap x1, x2
+                x1 ^= x2;
+                x2 ^= x1;
+                x1 ^= x2;
+            }
+
+            if (x1 < x2)
+            {
+                int x = x1;
+                int p = 0;
+
+                for (int y = y1; y <= y2; y++)
+                {
+                    if (top.isPointInRect(x, y))
+                    {
+                        if (mAlpha)
+                        {
+                            SDLputPixelAlpha(mTarget, x, y, mColor);
+                        }
+                        else
+                        {
+                            SDLputPixel(mTarget, x, y, mColor);
+                        }
+                    }
+
+                    p += dx;
+
+                    if (p * 2 >= dy)
+                    {
+                        x++;
+                        p -= dy;
+                    }
+                }
+            }
+            else
+            {
+                int x = x1;
+                int p = 0;
+
+                for (int y = y1; y <= y2; y++)
+                {
+                    if (top.isPointInRect(x, y))
+                    {
+                        if (mAlpha)
+                        {
+                            SDLputPixelAlpha(mTarget, x, y, mColor);
+                        }
+                        else
+                        {
+                            SDLputPixel(mTarget, x, y, mColor);
+                        }
+                    }
+
+                    p += dx;
+
+                    if (p * 2 >= dy)
+                    {
+                        x--;
+                        p -= dy;
+                    }
+                }
+            }
+        }
+    }
+
+    void SDLGraphics::setColor(const Color& color)
+    {
+        mColor = color;
+
+        mAlpha = color.a != 255;
+    }
+
+    const Color& SDLGraphics::getColor() const
+    {
+        return mColor;
+    }
+
+    void SDLGraphics::drawSDLSurface(SDL_Surface* surface,
+                                     SDL_Rect source,
+                                     SDL_Rect destination)
+    {
+        if (mClipStack.empty())
+        {
+            throw GCN_EXCEPTION("Clip stack is empty, perhaps you called a draw funtion outside of _beginDraw() and _endDraw()?");
+        }
+
+        const ClipRectangle& top = mClipStack.top();
+
+        destination.x += top.xOffset;
+        destination.y += top.yOffset;
+
+        SDL_BlitSurface(surface, &source, mTarget, &destination);
+    }
+}
diff --git a/src/guichan/sdl/sdlgraphics.hpp b/src/guichan/sdl/sdlgraphics.hpp
new file mode 100644
index 000000000..70a234d33
--- /dev/null
+++ b/src/guichan/sdl/sdlgraphics.hpp
@@ -0,0 +1,156 @@
+/*      _______   __   __   __   ______   __   __   _______   __   __
+ *     / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___  /\ /  |\/ /\
+ *    / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
+ *   / / /__   / / // / // / // / /    / ___  / // ___  / // /| ' / /
+ *  / /_// /\ / /_// / // / // /_/_   / / // / // /\_/ / // / |  / /
+ * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
+ * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
+ *
+ * Copyright (c) 2004 - 2008 Olof Naessén and Per Larsson
+ *
+ *
+ * Per Larsson a.k.a finalman
+ * Olof Naessén a.k.a jansem/yakslem
+ *
+ * Visit: http://guichan.sourceforge.net
+ *
+ * License: (BSD)
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. Neither the name of Guichan 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 GCN_SDLGRAPHICS_HPP
+#define GCN_SDLGRAPHICS_HPP
+
+#include "SDL.h"
+
+#include "guichan/color.hpp"
+#include "guichan/graphics.hpp"
+#include "guichan/platform.hpp"
+
+namespace gcn
+{
+    class Image;
+    class Rectangle;
+
+    /**
+     * SDL implementation of the Graphics.
+     */
+    class GCN_EXTENSION_DECLSPEC SDLGraphics : public Graphics
+    {
+    public:
+
+        // Needed so that drawImage(gcn::Image *, int, int) is visible.
+        using Graphics::drawImage;
+
+        /**
+         * Constructor.
+         */
+        SDLGraphics();
+
+        /**
+         * Sets the target SDL_Surface to draw to. The target can be any
+         * SDL_Surface. This funtion also pushes a clip areas corresponding to
+         * the dimension of the target.
+         *
+         * @param target the target to draw to.
+         */
+        virtual void setTarget(SDL_Surface* target);
+
+        /**
+         * Gets the target SDL_Surface.
+         *
+         * @return the target SDL_Surface.
+         */
+        virtual SDL_Surface* getTarget() const;
+
+        /**
+         * Draws an SDL_Surface on the target surface. Normaly you'll
+         * use drawImage, but if you want to write SDL specific code
+         * this function might come in handy.
+         *
+         * NOTE: The clip areas will be taken into account.
+         */
+        virtual void drawSDLSurface(SDL_Surface* surface,
+                                    SDL_Rect source,
+                                    SDL_Rect destination);
+
+
+        // Inherited from Graphics
+
+        virtual void _beginDraw();
+
+        virtual void _endDraw();
+
+        virtual bool pushClipArea(Rectangle area);
+
+        virtual void popClipArea();
+
+        virtual void drawImage(const Image* image,
+                               int srcX,
+                               int srcY,
+                               int dstX,
+                               int dstY,
+                               int width,
+                               int height);
+
+        virtual void drawPoint(int x, int y);
+
+        virtual void drawLine(int x1, int y1, int x2, int y2);
+
+        virtual void drawRectangle(const Rectangle& rectangle);
+
+        virtual void fillRectangle(const Rectangle& rectangle);
+
+        virtual void setColor(const Color& color);
+
+        virtual const Color& getColor() const;
+
+    protected:
+        /**
+         * Draws a horizontal line.
+         *
+         * @param x1 the start coordinate of the line.
+         * @param y the y coordinate of the line.
+         * @param x2 the end coordinate of the line.
+         */
+        virtual void drawHLine(int x1, int y, int x2);
+
+        /**
+         * Draws a vertical line.
+         *
+         * @param x the x coordinate of the line.
+         * @param y1 the start coordinate of the line.
+         * @param y2 the end coordinate of the line.
+         */
+        virtual void drawVLine(int x, int y1, int y2);
+
+        SDL_Surface* mTarget;
+        Color mColor;
+        bool mAlpha;
+    };
+}
+
+#endif // end GCN_SDLGRAPHICS_HPP
diff --git a/src/guichan/sdl/sdlimage.cpp b/src/guichan/sdl/sdlimage.cpp
new file mode 100644
index 000000000..cab5effdb
--- /dev/null
+++ b/src/guichan/sdl/sdlimage.cpp
@@ -0,0 +1,185 @@
+/*      _______   __   __   __   ______   __   __   _______   __   __
+ *     / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___  /\ /  |\/ /\
+ *    / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
+ *   / / /__   / / // / // / // / /    / ___  / // ___  / // /| ' / /
+ *  / /_// /\ / /_// / // / // /_/_   / / // / // /\_/ / // / |  / /
+ * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
+ * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
+ *
+ * Copyright (c) 2004 - 2008 Olof Naessén and Per Larsson
+ *
+ *
+ * Per Larsson a.k.a finalman
+ * Olof Naessén a.k.a jansem/yakslem
+ *
+ * Visit: http://guichan.sourceforge.net
+ *
+ * License: (BSD)
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. Neither the name of Guichan 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.
+ */
+
+/*
+ * For comments regarding functions please see the header file.
+ */
+
+#include "guichan/sdl/sdlimage.hpp"
+
+#include "guichan/exception.hpp"
+#include "guichan/sdl/sdlpixel.hpp"
+
+namespace gcn
+{
+    SDLImage::SDLImage(SDL_Surface* surface, bool autoFree)
+    {
+        mAutoFree = autoFree;
+        mSurface = surface;
+    }
+
+    SDLImage::~SDLImage()
+    {
+        if (mAutoFree)
+        {
+            free();
+        }
+    }
+
+    SDL_Surface* SDLImage::getSurface() const
+    {
+        return mSurface;
+    }
+
+    int SDLImage::getWidth() const
+    {
+        if (mSurface == NULL)
+        {
+            throw GCN_EXCEPTION("Trying to get the width of a non loaded image.");
+        }
+
+        return mSurface->w;
+    }
+
+    int SDLImage::getHeight() const
+    {
+        if (mSurface == NULL)
+        {
+            throw GCN_EXCEPTION("Trying to get the height of a non loaded image.");
+        }
+
+        return mSurface->h;
+    }
+
+    Color SDLImage::getPixel(int x, int y)
+    {
+        if (mSurface == NULL)
+        {
+            throw GCN_EXCEPTION("Trying to get a pixel from a non loaded image.");
+        }
+
+        return SDLgetPixel(mSurface, x, y);
+    }
+
+    void SDLImage::putPixel(int x, int y, const Color& color)
+    {
+        if (mSurface == NULL)
+        {
+            throw GCN_EXCEPTION("Trying to put a pixel in a non loaded image.");
+        }
+
+        SDLputPixel(mSurface, x, y, color);
+    }
+
+    void SDLImage::convertToDisplayFormat()
+    {
+        if (mSurface == NULL)
+        {
+            throw GCN_EXCEPTION("Trying to convert a non loaded image to display format.");
+        }
+
+        int i;
+        bool hasPink = false;
+        bool hasAlpha = false;
+
+        for (i = 0; i < mSurface->w * mSurface->h; ++i)
+        {
+            if (((unsigned int*)mSurface->pixels)[i] == SDL_MapRGB(mSurface->format,255,0,255))
+            {
+                hasPink = true;
+                break;
+            }
+        }
+
+        for (i = 0; i < mSurface->w * mSurface->h; ++i)
+        {
+            Uint8 r, g, b, a;
+
+            SDL_GetRGBA(((unsigned int*)mSurface->pixels)[i], mSurface->format,
+                        &r, &g, &b, &a);
+
+            if (a != 255)
+            {
+                hasAlpha = true;
+                break;
+            }
+        }
+
+        SDL_Surface *tmp;
+
+        if (hasAlpha)
+        {
+            tmp = SDL_DisplayFormatAlpha(mSurface);
+            SDL_FreeSurface(mSurface);
+            mSurface = NULL;
+        }
+        else
+        {
+            tmp = SDL_DisplayFormat(mSurface);
+            SDL_FreeSurface(mSurface);
+            mSurface = NULL;
+        }
+
+        if (tmp == NULL)
+        {
+            throw GCN_EXCEPTION("Unable to convert image to display format.");
+        }
+
+        if (hasPink)
+        {
+            SDL_SetColorKey(tmp, SDL_SRCCOLORKEY,
+                            SDL_MapRGB(tmp->format,255,0,255));
+        }
+        if (hasAlpha)
+        {
+            SDL_SetAlpha(tmp, SDL_SRCALPHA, 255);
+        }
+
+        mSurface = tmp;
+    }
+
+    void SDLImage::free()
+    {
+        SDL_FreeSurface(mSurface);
+    }
+}
diff --git a/src/guichan/sdl/sdlimage.hpp b/src/guichan/sdl/sdlimage.hpp
new file mode 100644
index 000000000..4d226177e
--- /dev/null
+++ b/src/guichan/sdl/sdlimage.hpp
@@ -0,0 +1,107 @@
+/*      _______   __   __   __   ______   __   __   _______   __   __
+ *     / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___  /\ /  |\/ /\
+ *    / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
+ *   / / /__   / / // / // / // / /    / ___  / // ___  / // /| ' / /
+ *  / /_// /\ / /_// / // / // /_/_   / / // / // /\_/ / // / |  / /
+ * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
+ * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
+ *
+ * Copyright (c) 2004 - 2008 Olof Naessén and Per Larsson
+ *
+ *
+ * Per Larsson a.k.a finalman
+ * Olof Naessén a.k.a jansem/yakslem
+ *
+ * Visit: http://guichan.sourceforge.net
+ *
+ * License: (BSD)
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. Neither the name of Guichan 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 GCN_SDLIMAGE_HPP
+#define GCN_SDLIMAGE_HPP
+
+#include "SDL.h"
+
+#include <string>
+
+#include "guichan/color.hpp"
+#include "guichan/platform.hpp"
+#include "guichan/image.hpp"
+
+namespace gcn
+{
+    /**
+     * SDL implementation of Image.
+     */
+    class GCN_EXTENSION_DECLSPEC SDLImage : public Image
+    {
+    public:
+        /**
+         * Constructor. Load an image from an SDL surface.
+         *
+         * NOTE: The functions getPixel and putPixel are only guaranteed to work
+         *       before an image has been converted to display format.
+         *
+         * @param surface the surface from which to load.
+         * @param autoFree true if the surface should automatically be deleted.
+         */
+        SDLImage(SDL_Surface* surface, bool autoFree);
+
+        /**
+         * Destructor.
+         */
+        virtual ~SDLImage();
+
+        /**
+         * Gets the SDL surface for the image.
+         *
+         * @return the SDL surface for the image.
+         */
+        virtual SDL_Surface* getSurface() const;
+
+
+        // Inherited from Image
+
+        virtual void free();
+
+        virtual int getWidth() const;
+
+        virtual int getHeight() const;
+
+        virtual Color getPixel(int x, int y);
+
+        virtual void putPixel(int x, int y, const Color& color);
+
+        virtual void convertToDisplayFormat();
+
+    protected:
+        SDL_Surface* mSurface;
+        bool mAutoFree;
+    };
+}
+
+#endif // end GCN_SDLIMAGE_HPP
diff --git a/src/guichan/sdl/sdlpixel.hpp b/src/guichan/sdl/sdlpixel.hpp
new file mode 100644
index 000000000..49686ebc1
--- /dev/null
+++ b/src/guichan/sdl/sdlpixel.hpp
@@ -0,0 +1,260 @@
+/*      _______   __   __   __   ______   __   __   _______   __   __
+ *     / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___  /\ /  |\/ /\
+ *    / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
+ *   / / /__   / / // / // / // / /    / ___  / // ___  / // /| ' / /
+ *  / /_// /\ / /_// / // / // /_/_   / / // / // /\_/ / // / |  / /
+ * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
+ * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
+ *
+ * Copyright (c) 2004 - 2008 Olof Naessén and Per Larsson
+ *
+ *
+ * Per Larsson a.k.a finalman
+ * Olof Naessén a.k.a jansem/yakslem
+ *
+ * Visit: http://guichan.sourceforge.net
+ *
+ * License: (BSD)
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. Neither the name of Guichan 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 GCN_SDLPIXEL_HPP
+#define GCN_SDLPIXEL_HPP
+
+#include "SDL.h"
+#include "guichan/color.hpp"
+
+namespace gcn
+{
+
+    /**
+     * Checks a pixels color of an SDL_Surface.
+     *
+     * @param surface an SDL_Surface where to check for a pixel color.
+     * @param x the x coordinate on the surface.
+     * @param y the y coordinate on the surface.
+     * @return a color of a pixel.
+     */
+    inline const Color SDLgetPixel(SDL_Surface* surface, int x, int y)
+    {
+        int bpp = surface->format->BytesPerPixel;
+
+        SDL_LockSurface(surface);
+
+        Uint8 *p = (Uint8 *)surface->pixels + y * surface->pitch + x * bpp;
+
+        unsigned int color = 0;
+
+        switch(bpp)
+        {
+          case 1:
+              color = *p;
+              break;
+
+          case 2:
+              color = *(Uint16 *)p;
+              break;
+
+          case 3:
+              if(SDL_BYTEORDER == SDL_BIG_ENDIAN)
+              {
+                  color = p[0] << 16 | p[1] << 8 | p[2];
+              }
+              else
+              {
+                  color = p[0] | p[1] << 8 | p[2] << 16;
+              }
+              break;
+
+          case 4:
+              color = *(Uint32 *)p;
+              break;
+
+        }
+
+        unsigned char r,g,b,a;
+
+        SDL_GetRGBA(color, surface->format, &r, &g, &b, &a);
+        SDL_UnlockSurface(surface);
+
+        return Color(r,g,b,a);
+    }
+
+    /**
+     * Puts a pixel on an SDL_Surface.
+     *
+     * @param x the x coordinate on the surface.
+     * @param y the y coordinate on the surface.
+     * @param color the color the pixel should be in.
+     */
+    inline void SDLputPixel(SDL_Surface* surface, int x, int y, const Color& color)
+    {
+        int bpp = surface->format->BytesPerPixel;
+
+        SDL_LockSurface(surface);
+
+        Uint8 *p = (Uint8 *)surface->pixels + y * surface->pitch + x * bpp;
+
+        Uint32 pixel = SDL_MapRGB(surface->format, color.r, color.g, color.b);
+
+        switch(bpp)
+        {
+          case 1:
+              *p = pixel;
+              break;
+
+          case 2:
+              *(Uint16 *)p = pixel;
+              break;
+
+          case 3:
+              if(SDL_BYTEORDER == SDL_BIG_ENDIAN)
+              {
+                  p[0] = (pixel >> 16) & 0xff;
+                  p[1] = (pixel >> 8) & 0xff;
+                  p[2] = pixel & 0xff;
+              }
+              else
+              {
+                  p[0] = pixel & 0xff;
+                  p[1] = (pixel >> 8) & 0xff;
+                  p[2] = (pixel >> 16) & 0xff;
+              }
+              break;
+
+          case 4:
+              *(Uint32 *)p = pixel;
+              break;
+        }
+
+        SDL_UnlockSurface(surface);
+    }
+
+    /**
+     * Blends two 32 bit colors together.
+     *
+     * @param src the source color.
+     * @param dst the destination color.
+     * @param a alpha.
+     */
+    inline unsigned int SDLAlpha32(unsigned int src, unsigned int dst, unsigned char a)
+    {
+        unsigned int b = ((src & 0xff) * a + (dst & 0xff) * (255 - a)) >> 8;
+        unsigned int g = ((src & 0xff00) * a + (dst & 0xff00) * (255 - a)) >> 8;
+        unsigned int r = ((src & 0xff0000) * a + (dst & 0xff0000) * (255 - a)) >> 8;
+
+        return (b & 0xff) | (g & 0xff00) | (r & 0xff0000);
+    }
+
+    /**
+     * Blends two 16 bit colors together.
+     *
+     * @param src the source color.
+     * @param dst the destination color.
+     * @param a alpha.
+     */
+    inline unsigned short SDLAlpha16(unsigned short src, unsigned short dst, unsigned char a, const SDL_PixelFormat *f)
+    {
+        unsigned int b = ((src & f->Rmask) * a + (dst & f->Rmask) * (255 - a)) >> 8;
+        unsigned int g = ((src & f->Gmask) * a + (dst & f->Gmask) * (255 - a)) >> 8;
+        unsigned int r = ((src & f->Bmask) * a + (dst & f->Bmask) * (255 - a)) >> 8;
+
+        return (unsigned short)((b & f->Rmask) | (g & f->Gmask) | (r & f->Bmask));
+    }
+
+    /*
+    typedef struct{
+        SDL_Palette *palette;
+        Uint8  BitsPerPixel;
+        Uint8  BytesPerPixel;
+        Uint32 Rmask, Gmask, Bmask, Amask;
+        Uint8  Rshift, Gshift, Bshift, Ashift;
+        Uint8  Rloss, Gloss, Bloss, Aloss;
+        Uint32 colorkey;
+        Uint8  alpha;
+    } SDL_PixelFormat;
+    */
+
+    /**
+     * Puts a pixel on an SDL_Surface with alpha
+     *
+     * @param x the x coordinate on the surface.
+     * @param y the y coordinate on the surface.
+     * @param color the color the pixel should be in.
+     */
+    inline void SDLputPixelAlpha(SDL_Surface* surface, int x, int y, const Color& color)
+    {
+        int bpp = surface->format->BytesPerPixel;
+
+        SDL_LockSurface(surface);
+
+        Uint8 *p = (Uint8 *)surface->pixels + y * surface->pitch + x * bpp;
+
+        Uint32 pixel = SDL_MapRGB(surface->format, color.r, color.g, color.b);
+
+        switch(bpp)
+        {
+          case 1:
+              *p = pixel;
+              break;
+
+          case 2:
+              *(Uint16 *)p = SDLAlpha16(pixel, *(Uint32 *)p, color.a, surface->format);
+              break;
+
+          case 3:
+              if(SDL_BYTEORDER == SDL_BIG_ENDIAN)
+              {
+                  unsigned int r = (p[0] * (255 - color.a) + color.r * color.a) >> 8;
+                  unsigned int g = (p[1] * (255 - color.a) + color.g * color.a) >> 8;
+                  unsigned int b = (p[2] * (255 - color.a) + color.b * color.a) >> 8;
+
+                  p[2] = b;
+                  p[1] = g;
+                  p[0] = r;
+              }
+              else
+              {
+                  unsigned int r = (p[2] * (255 - color.a) + color.r * color.a) >> 8;
+                  unsigned int g = (p[1] * (255 - color.a) + color.g * color.a) >> 8;
+                  unsigned int b = (p[0] * (255 - color.a) + color.b * color.a) >> 8;
+
+                  p[0] = b;
+                  p[1] = g;
+                  p[2] = r;
+              }
+              break;
+
+          case 4:
+              *(Uint32 *)p = SDLAlpha32(pixel, *(Uint32 *)p, color.a);
+              break;
+        }
+
+        SDL_UnlockSurface(surface);
+    }
+}
+
+#endif // end GCN_SDLPIXEL_HPP