/******************************************************** * Some code. Copyright (C) 2003 by Pascal Massimino.   * * All Rights Reserved.      (http://skal.planet-d.net) * * For Educational/Academic use ONLY. See 'LICENSE.TXT'.* ********************************************************//* * skl_video.h * * video drivers ********************************************************/#ifndef _SKL_VIDEO_H_#define _SKL_VIDEO_H_#ifndef SKL_NO_VIDEO#include "skl_syst/skl_driver.h"#include "skl_2d/skl_window.h"#include "skl_syst/skl_destroy.h"#include "skl_syst/skl_event.h"//////////////////////////////////////////////////////////class SKL_VIDEO_I : public SKL_DRIVER_I, private SKL_DESTROYABLE{  private:    SKL_MEM_I           *_Mem;    SKL_BTM            **_Modes;    int                  _Nb_Modes;    int                  _Max_Modes;    int                  _Fullscreen_Mode_Nb;    SKL_WINDOW          *_Fullscreen_Mode;    SKL_WINDOW          *_Windows;    void Close_All_Windows();    int Is_Better_Than(const SKL_BTM * const a, const SKL_BTM * const b) const;    SKL_WINDOW *Set_Fullscreen_Mode_Internal(int Mode);    void Add_Mode(int i, SKL_BTM *Mode);  protected:    void Add_Mode(SKL_BTM*);    void Clear_Modes();  public:      // capabilities    typedef enum {      NONE           = 0,      HAS_FULLSCREEN = 1,      HAS_BACKBUFFER = 2    } CAPS;    CAPS _Caps;      // options    // yes. i know. This is against OO rules to make subclasses'    // specific stuff (params) "bubble up" to base class. But    // compared to the price of having to make public such uninteresting    // implementation code as, say, the DDraw video driver...     // Or: would you like all X11's stuff to be included just to    // have a Use_Shm() method handy? Well...    // So, each sub-implementation will plug its own params needs    // in this enum. Period.    typedef enum {      USE_DISPLAY,      USE_SHM,      USE_DGA,      USE_SAFE_SVGALIB,      VSYNC,      DITHER,      REFRESH_RATE,            HIDE_FULLSCREEN,      SHOW_FULLSCREEN    } PARAM;  protected:      // to be implemented by subclasses    virtual int Set_Param(PARAM opt, SKL_CST_STRING SValue, int IValue) = 0;    virtual int Get_Param(PARAM opt, SKL_CST_STRING *SValue, int *IValue) const = 0;    virtual SKL_WINDOW *Set_Fullscreen_Mode(const SKL_BTM *Mode, int Show=1) = 0;    virtual void Shutdown_Fullscreen() = 0;    virtual SKL_WINDOW *Open_Window(int W, int H, SKL_FORMAT Fmt,                                    int With_Backbuffer=0,                                    int Show=1) = 0;    virtual int Needs_Conversion(const SKL_WINDOW *Win,                                 SKL_FORMAT Fmt) const;  public:    SKL_VIDEO_I(SKL_MEM_I *Mem, SKL_CST_STRING Name=0);    virtual ~SKL_VIDEO_I();    void Print_Modes_Infos() const;    void Print_Windows_Infos() const;    virtual void Print_Infos() const;    virtual void Hide(SKL_WINDOW &m) { m.Hide(); }    virtual void Show(SKL_WINDOW &m) { m.Show(); }    SKL_MEM_I *Get_Mem() const { return _Mem; }     int Set_String_Param(PARAM Opt, SKL_CST_STRING value);    int Set_Int_Param(PARAM Opt, int value);    SKL_CST_STRING Get_String_Param(PARAM Opt) const;    int Get_Int_Param(PARAM Opt) const;    int Has_Fullscreen() const { return (_Caps&HAS_FULLSCREEN)!=0; }    int Has_Backbuffer() const { return (_Caps&HAS_BACKBUFFER)!=0; }      // fullscreen modes      // Mode number -1 means 'text mode' (no fullscreen mode)    int Get_Nb_Modes() const { return _Nb_Modes; }    const SKL_BTM *Get_Mode_Infos(int Nb) const;    int Search_Best_Mode(int w, int h, SKL_FORMAT fmt) const;      // API for setting fullscreen mode    int Is_Fullscreen() const { return (_Fullscreen_Mode!=0); }    int Get_Fullscreen_Mode_Nb() const { return _Fullscreen_Mode_Nb; }    SKL_WINDOW *Get_Fullscreen_Mode() const { return _Fullscreen_Mode; }    SKL_WINDOW *Fullscreen_Mode(int Mode_Nb);    SKL_WINDOW *Fullscreen_Mode(int Width,                                int Height,                                 SKL_FORMAT Fmt);    void Close_Fullscreen();      // API for creating window    SKL_WINDOW *Create_Window(int W, int H,                              SKL_FORMAT fmt,                              int With_Backbuffer=0,                              int Show=1);};//////////////////////////////////////////////////////////#endif  /* SKL_NO_VIDEO */#endif  /* _SKL_VIDEO_H_ */