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common.c
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1993-03-07
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/****************************************************************************
*
* SuperVGA Test Library
*
* Copyright (C) 1993 Kendall Bennett.
* All rights reserved.
*
* Filename: $RCSfile: common.c $
* Version: $Revision: 1.1 $
*
* Language: ANSI C
* Environment: IBM PC (MSDOS)
*
* Description: Module containing code common to all the SuperVGA test
* programs.
*
* $Id: common.c 1.1 1993/03/07 04:07:47 kjb Exp $
*
* Revision History:
* -----------------
*
* $Log: common.c $
* Revision 1.1 1993/03/07 04:07:47 kjb
* Initial revision
*
****************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <string.h>
#include "drivers.h"
#include "getopt.h"
/*---------------------------- Global Variables ---------------------------*/
extern int _ignoreSVGA,_VESAFirst,driver,chipID,memory,dac;
char *version = "3.1";
int queryCpu(void);
/*----------------------------- Implementation ----------------------------*/
void help(void)
/****************************************************************************
*
* Function: help
*
* Description: Provide command line usage information.
*
****************************************************************************/
{
printf("Options are:\n");
printf(" -v - Check for VESA BIOS first\n");
printf(" -s<name> - Force detection of SuperVGA 'name'\n");
printf(" -c<x> - Force detection of SuperVGA chipset (numerical id)\n");
printf(" -m<size> - Force memory size to 'size'\n");
printf(" -d<x> - Force DAC type (0 normal, 1 HiColor, 3 TrueColor)\n");
printf(" -i - Do not perform SuperVGA detection\n");
printf("\n");
printf("It is possible the SuperVGA detection code will hang the machine on old\n");
printf("VGA/SVGA cards. You can optionally force the program to work with any\n");
printf("combination of card, chipset, memory size and DAC, but unless you specify\n");
printf("the -i option, unspecified values will be filled in automatically for you.\n");
exit(1);
}
void parseArguments(int argc,char *argv[])
/****************************************************************************
*
* Function: parseArguments
* Parameters: argc - Number of command line arguments
* argv - Array of command line arguments
*
* Description: Parses the command line and forces detection of specific
* SuperVGA's if specified.
*
****************************************************************************/
{
int i,forceSVGA = -1,forceCHIP = -1,forceMEM = -1;
int forceDAC = grDETECTDAC;
int option;
char *argument;
if (queryCpu() < 4) {
printf("This program requires an 80386 or better processor to run.\n");
exit(1);
}
/* Parse command line options */
do {
option = getopt(argc,argv,"VvS:s:C:c:M:m:D:d:Iih",&argument);
if (isascii(option))
option = tolower(option);
switch(option) {
case 'v':
_VESAFirst = true;
break;
case 'i':
_ignoreSVGA = true;
break;
case 's':
i = __FIRST_SVGA+1;
while (1) {
if (stricmp(MGL_driverName(i),argument) == 0) {
forceSVGA = i;
break;
}
if (++i > __LAST_SVGA) {
printf("Unknown SuperVGA chip. Valid values are:\n\n");
for (i = __FIRST_SVGA+1; i <= __LAST_SVGA; i++)
printf(" %s\n", MGL_driverName(i));
exit(1);
}
}
break;
case 'c':
forceCHIP = atoi(argument);
break;
case 'm':
forceMEM = atoi(argument);
break;
case 'd':
forceDAC = atoi(argument);
break;
case 'h':
case INVALID:
help();
}
} while (option != ALLDONE);
driver = grDETECT;
dac = forceDAC;
MGL_detectGraph(&driver,&chipID,&memory,&dac,&i);
if (forceSVGA != -1) driver = forceSVGA;
if (forceCHIP != -1) chipID = forceCHIP;
if (forceMEM != -1) memory = forceMEM;
}