color.c

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C语言 代码 · 共 76 行

/****************************************************************************
*
*                            Open Watcom Project
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*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
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*  ========================================================================
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*    This file contains Original Code and/or Modifications of Original
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* Description:  WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
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****************************************************************************/


#include "gdefn.h"


short _WCI86FAR _CGRAPH _getcolor( void )
/*==================================

   This function returns the current colour. */

{
    return( _CurrColor );
}

Entry( _GETCOLOR, _getcolor ) // alternate entry-point


short _WCI86FAR _CGRAPH _setcolor( short pixval )
/*==========================================

   This routine sets the colour for line drawing and object filling. */

{
    if( _GraphMode() ) {
        return( _L2setcolor( pixval ) );
    } else {
        return( -1 );
    }
}

Entry( _SETCOLOR, _setcolor ) // alternate entry-point


short _WCI86FAR _L2setcolor( short pixval )
/*====================================

   This routine sets the colour for line drawing and object filling. */

{
    short               prev;

    prev = _CurrColor;
    _CurrColor = pixval & ( _CurrState->vc.numcolors - 1 );
    return( prev );
}