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 176 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 <conio.h>
#include "uidef.h"
#include <stdio.h>
#include "doscall.h"
#define HANDLE 0


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

#ifdef __386__
    unsigned char __near _osmode = OS2_MODE;
#endif

extern          ATTR                    BWAttrs[];
extern          ATTR                    CGAAttrs[];
extern          ATTR                    EGAAttrs[];
extern          ATTR                    MonoAttrs[];

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


bool intern initmonitor( void )
/*****************************/
{
    struct      _VIOMODEINFO            vioMode;
    struct      _VIOCONFIGINFO          config;

    if( UIData == NULL ) {
        UIData = &ui_data;
    }
    vioMode.cb = sizeof(vioMode);
    if( VioGetMode(&vioMode, HANDLE) != 0 ) return( FALSE );

    UIData->width  = vioMode.col;
    UIData->height = vioMode.row;

    config.cb = sizeof(config);
    if( VioGetConfig(0,&config,0) != 0 ) return( FALSE );
    if( config.display == 3 ) {
        UIData->colour = M_BW;
    } else {
        switch( config.adapter ) {
        case 0:         UIData->colour = M_MONO; break;
        case 1:         UIData->colour = M_CGA; break;
        case 2:         UIData->colour = M_EGA; break;
        case 3:         UIData->colour = M_VGA; break;
        default:                UIData->colour = M_VGA; break;
        }
    }
    return( TRUE );
}


int intern initbios( void )
/*************************/
{
    int                 initialized;
    // unsigned            offset;
    #ifdef __386__
        void        __far16 *ptrLVB;
        void                *ptr;
    #else
        unsigned    long    ptrLVB;
    #endif
    unsigned    short   SizeOfLVB;

    initialized = FALSE;
    if( initmonitor() ) {
        VioGetBuf( (PULONG) &ptrLVB, (PUSHORT) &SizeOfLVB, 0);
        // offset = SCREEN_OFFSET; AFS 08-feb-91
        #ifdef __386__
            ptr = ptrLVB;
            UIData->screen.origin = ptr;
        #else
            UIData->screen.origin = (PIXEL far *) ptrLVB;
        #endif
        UIData->screen.increment = UIData->width;
        uiinitcursor();
        initkeyboard();
        if( _osmode == DOS_MODE ) {
            UIData->mouse_acc_delay = 5;   /* ticks */
            UIData->mouse_rpt_delay = 1;   /* ticks */
            UIData->mouse_clk_delay = 5;   /* ticks */
            UIData->tick_delay = 9;        /* ticks */
            UIData->mouse_speed = 8;       /* mickeys to ticks ratio */
        } else {
            UIData->mouse_acc_delay = 250;
            UIData->mouse_rpt_delay = 100;
            UIData->mouse_clk_delay = 250;
            UIData->tick_delay = 500;
            UIData->mouse_speed = 8;       /* mickeys to ticks ratio */
        }
        initialized = TRUE;
    }
    return( initialized );
}

unsigned global uiclockdelay( unsigned milli )
{
    /* this routine converts milli-seconds into platform  */
    /* dependant units - used to set mouse & timer delays */
    if( _osmode == DOS_MODE )  return( milli * 18 / 1000 );
    return( milli );
}



void intern finibios( void )
/**************************/
{
    uifinicursor();
    finikeyboard();
}


/* update the physical screen with contents of virtual copy */

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

    for( i = area->row; i < (area->row + area->height); i++ ) {
        VioShowBuf( (i * UIData->width + area->col) * sizeof( PIXEL ),
                    area->width * sizeof(PIXEL), 0 );
    }
}