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// vi:ts=4:shiftwidth=4:expandtab
                          fbvgaplanes.h  -  description
    begin                : Fri July 20 2001
    copyright            : (C) 2001 by ejoy, huyong
    email                : ejoy@users.sourceforge.net

 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *


#include "fbdev.h"

 *@author huyong, based on kernel drivers/video/fbcon-vga-planes.c
00028 class FBVgaPlanes : public FBDev {

        void FillRect(int x1,int y1,int x2,int y2,int color);
        void RevRect(int x1,int y1,int x2,int y2);
        void PutPixel(int x,int y,int color);
        void DrawChar(int x,int y,int fg,int bg,struct CharBitMap* pFont);

        // EGA/VGA special routine
        /* Set the Graphics Mode Register.  Bits 0-1 are write mode, bit 3 is
           read mode. */
        static inline void setmode(int mode);
        /* Select the Bit Mask Register. */
        static inline void selectmask(void);
        /* Set the value of the Bit Mask Register.  It must already have been
           selected with selectmask(). */
        static inline void setmask(int mask);
        /* Set the Data Rotate Register.  Bits 0-2 are rotate count, bits 3-4
           are logical operation (0=NOP, 1=AND, 2=OR, 3=XOR). */
        static inline void setop(int op);
        /* Set the Enable Set/Reset Register.  The code here always uses value
           0xf for this register.  */
        static inline void setsr(int sr);
        /* Set the Set/Reset Register. */
        static inline void setcolor(int color);
        /* Set the value in the Graphics Address Register. */
        static inline void setindex(int index);

        static void SetDefaultMode();


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