uibios.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 181 行

/****************************************************************************
*
*                            Open Watcom Project
*
*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
*  ========================================================================
*
*    This file contains Original Code and/or Modifications of Original
*    Code as defined in and that are subject to the Sybase Open Watcom
*    Public License version 1.0 (the 'License'). You may not use this file
*    except in compliance with the License. BY USING THIS FILE YOU AGREE TO
*    ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
*    provided with the Original Code and Modifications, and is also
*    available at www.sybase.com/developer/opensource.
*
*    The Original Code and all software distributed under the License are
*    distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
*    EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
*    ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
*    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
*    NON-INFRINGEMENT. Please see the License for the specific language
*    governing rights and limitations under the License.
*
*  ========================================================================
*
* Description:  WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
*               DESCRIBE IT HERE!
*
****************************************************************************/


#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <conio.h>
#include <string.h>
#include <process.h>
#include "uidef.h"
#include "uinlm.h"

static MONITOR ui_data = {
       25,
       80,
       M_CGA,
       NULL,
       NULL,
       NULL,
       NULL,
       4,
       1
};

int     ScreenHandle;       // used by uikeyb.c and uicurs.c as well

bool global uiset80col()
/**********************/
{
    return( TRUE );
}

bool intern initmonitor()
/***********************/
{
    WORD height, width;

    ScreenHandle = CreateScreen( uigetscreenname(),
                        DONT_CHECK_CTRL_CHARS | AUTO_DESTROY_SCREEN );
    if( ScreenHandle == -1 ) {
        return( FALSE );
    }
    SetCurrentScreen( ScreenHandle );

    SetPositionOfInputCursor( 0, 0 );
    HideInputCursor();

    DisplayScreen( ScreenHandle );

    if( UIData == NULL ) {
        UIData = &ui_data;
    }

    GetSizeOfScreen( &height, &width );

    UIData->height = (ORD) height;
    UIData->width  = (ORD) width;


/* IsColorMonitor doesn't seem to be working for NetWare 3.11 */
/* so we'll just assume a colour monitor for now. */

    if( IsColorMonitor( ) ){
        UIData->colour = M_CGA;
    } else {
        UIData->colour = M_MONO;
    } /* end if */

    return( TRUE );
}


int intern initbios( void )
/*******************/
{
    int                 initialized = FALSE;
    int                 i;

    if( initmonitor() ) {

        UIData->screen.origin = (LPPIXEL) uimalloc(
            UIData->width * UIData->height * sizeof( PIXEL )
        );

        for( i = 0 ; i < UIData->width * UIData->height ; ++i ){
            UIData->screen.origin[i].ch = ' ';
            UIData->screen.origin[i].attr = 7;
        } /* end for */

        UIData->screen.increment = UIData->width;

        uiinitcursor();
        initkeyboard();

        /* No mouse support in NetWare! */

        UIData->mouse_acc_delay = 0;
        UIData->mouse_rpt_delay = 0;
        UIData->mouse_clk_delay = 0;
        UIData->mouse_speed     = 0;

/* A 500 millisecond tick delay is pretty reasonable. */

        UIData->tick_delay      = uiclockdelay( 500 );

        initialized = TRUE;
    } /* end if */

    return( initialized );

} /* end initbios */

unsigned global uiclockdelay( unsigned milli )
{
    /* NetWare uses a clock tick of .01 seconds. */

    return( milli / 10 );
}

static void finimonitor( void )
/********************/
{
    DestroyScreen( ScreenHandle );
} /* end finimonitor */

void intern finibios()
/********************/
{

    uifinicursor( );
    finikeyboard( );
    finimonitor( );
    uifree( (void *) UIData->screen.origin );

}

/* Update the physical screen with the contents of the virtual copy. */

void intern physupdate( SAREA *area )
/***********************************/
{
    int i;

    for( i = area->row ; i < area->row + area->height ; ++i ){
        CopyToScreenMemory( 1, area->width,
                (BYTE *)&(UIData->screen.origin[i*UIData->width+area->col]),
                area->col, i );
    } /* end for */

} /* end physupdate */