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graphics.h

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#ifndef __GRAPHICS_H
#define __GRAPHICS_H

#include <SDL/SDL.h>
#include <string>
#include <SDL/SDL_opengl.h>

//typedef SDL_Surface   Surface;        // bleh
typedef struct _Surface {
        GLuint w, h;    
        GLuint tx, ty;  
        GLuint tex;     
        GLuint ts;      
        SDL_Surface *surface;
} Surface;
        
typedef SDL_Rect        Rect;           // bleh

using namespace std;

class Graphics {
public:

        Graphics(string title = "", int w = 1024, int h = 768, bool opengl = true);


        ~Graphics();
        

        void PreOpenGLInit();


        void PostOpenGLInit();


        void toggleFullscreen() { SDL_WM_ToggleFullScreen (hwSurface->surface); }


        bool isFullscreen() { return (hwSurface->surface->flags & SDL_FULLSCREEN) ? true : false; }


        bool isMouseLocked() { return (SDL_WM_GrabInput(SDL_GRAB_QUERY) == SDL_GRAB_ON); }


        static bool lockMouse(bool lock);
        

        bool isHWSurface() { return (hwSurface->surface->flags & (SDL_HWSURFACE|SDL_OPENGL)) ? true : false; }


        void hideMouse(bool f) { SDL_ShowCursor(!f); }
        

        Surface *getMainSurface() const { return hwSurface; }   


        void flip();



        void update(int x, int y, int w, int h);


        void update(Rect &r);   
        

        void blit(Surface *src, int dx = 0, int dy = 0);


        static void blit(Surface *target, int tx, int ty, Surface *src);
        

        static void blit(Surface *target, Rect &t, Surface *src, Rect &s);
        

        Surface *newSurface(int w, int h);


        static Surface *CreateSurfaceFrom(Surface *s);  // This will Copy old pixels


        static Surface *CreateSurfaceFrom(Surface *s, int nw, int nh);  // This won't.
        

        void deleteSurface(Surface *n);


        void fillSurface(Surface *n, int color);

        

        int color(int r, int g, int b, Surface *n = NULL);
        

        static Surface *loadImage(const char *fname);


        static Surface *loadImage(string fname);
        

        static Surface *freeImage(Surface *surf);


        static Surface *displayFormat(Surface *surf, bool alpha = false);
                

        int getWidth() const { return width; }


        int getHeight() const { return height; }

        /*
         * Takes a surface pointer and creates a surface
         * suitable for OpenGL texture memory. The information
         * for the blit is stored within the surface.
         *
         * \param s the surface to be texturized.
         */
        static void TexturizeSurface (Surface *s);


        static void UntexturizeSurface (Surface *s);


        void RotateZ (float degrees);
private:

        static void blitclip(Surface *dest, int drx, int dry, int drw, int drh,
                             Surface *src,  int srx, int sry, int srw, int srh);


        static void blitGLtexture (Surface *src, int srx, int sry, int srw, int srh,
                                          int drx, int dry, int drw, int drh);

        Surface *hwSurface;

        int width, height;
};

#endif

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