gfxdos.hpp

一个嵌入式系统的C代码

//*************************************************************************
//  MODULE : Gfxdos - Module function prototypes                             *
//  AUTHOR : Ron Chernich                                                 *
//  PURPOSE: This module contains all the compiler dependant primitive    *
//           graphic functions required by the RCOS system.  These names  *
//           are invariant - the underlying code willbe compiler specific *     for graphic     graphic
//  HISTORY:                                                              *
//   02-DEC-92  First (MSC/C++ 7.00) version                              *
//   24-JAN-93	Clipping routines added 				  *
//   09-APR-93	Borland GfxTextHeight simplified, removing parameter	  * 
//   01-FEB-94  All int params changed to typedef'ed types.               *
//   05-FEB-94  GfxFill and GfxImageSize functions removed                *
//	 12-JAN-95	Gfx system reorganised along DOS UNIX compoenents
//*************************************************************************

#ifndef _RCOS_GFXDOS

  #include <stdio.h>
  #include <string.h>
  #include <math.h> 
  #include <malloc.h>
  
  #include "rcos.hpp"

  /**********
  * Define the type which will be used to store/retrieve images.
  * GFX_UlnOffset is the number of pixels relative to a char "cell"
  * to draw an underline. 
  */
  #if defined(MSC700) || defined(SYM60)
    #include <dos.h>
    #ifdef MSC700
      #include <graph.h>
    #else
      #include "MGRAPH.H"
    #endif
    
    #define PIMBUF               char _huge*
    #define GFX_UlnOffset        2		
  #endif

  #ifdef BC31 
    #include <dos.h>
    #include <graphics.h>
    
    #define PIMBUF               void far*
    #define GFX_UlnOffset        1
  #endif
    
  /***************************
  * Color mapping will be platform dependant, so we place it under
  * a conditional selection...
  */  
  #if defined(MSC700) || defined(SYM60) || defined(BC31)
  
    #define _Black         0x00
    #define _Blue          0x01
    #define _Green         0x02
    #define _Cyan          0x03
    #define _Red           0x04
    #define _Magenta       0x05
    #define _Brown         0x06
    #define _White         0x07
    #define _DarkGrey      0x08
    #define _LightBlue     0x09
    #define _LightGreen    0x0a
    #define _LightCyan     0x0b
    #define _LightRed      0x0c
    #define _LightMagenta  0x0d
    #define _Yellow        0x0e
    #define _BrightWhite   0x0f
    
  #endif
            
  #define _RCOS_GFXDOS
#endif

/*********************************** eof ***********************************/