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/* SVGATextMode -- An SVGA textmode manipulation/enhancement tool
*
* Copyright (C) 1995-1998 Koen Gadeyne
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/***
*** setpalette: palette set/get program
***/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/kd.h>
#include "misc.h"
#include "vga_prg.h"
#include "messages.h"
#include "file_ops.h"
#include "string_ops.h"
#include "kversion.h"
#include "cfg_data.h"
extern unsigned char STD_PALETTE[64][3];
/* this will keep the compiler happy when compiling on < 1.3.3 systems */
#ifndef GIO_CMAP
# define GIO_CMAP 0x4B70
#endif
#ifndef PIO_CMAP
# define PIO_CMAP 0x4B71
#endif
char *CommandName;
bool debug_messages=FALSE;
bool setreg=FALSE;
int STM_Options=0; /* just to keep the compiler happy */
/*
* problem: kernel does not want VGA palette index, but ANSI index!
* these are the differences:
*
* color: VGA index: ANSI index:
*
* black 0 0
* blue 1 4
* green 2 2
* cyan 3 6
* red 4 1
* magenta 5 5
* brown/yellow 6 3
* white 7 7
*
* for high intensity versions, add 8 to both VGA index and ANSI index
*
* quite luckily, both VGA->ANSI table and ANSI->VGA table
* turn out to be identical
*
* also, kernel wants red in first byte, then green and then blue.
*/
unsigned char color_table[] = { 0, 4, 2, 6, 1, 5, 3, 7,
8,12,10,14, 9,13,11,15 };
unsigned char kernel_palette[16][3];
bool eightbit=FALSE;
inline void printrgb(int index, int r, int g, int b, int hexdata)
{
if (eightbit)
{
r<<=2; g<<=2; b<<=2;
}
if (hexdata)
printf("0x%02x: 0x%02x 0x%02x 0x%02x\n",index,r,g,b);
else
printf("%03d: %03d %03d %03d\n",index,r,g,b);
}
void dumprgb(int index, int hexdata)
{
int r,g,b;
outb(index,DAC_STATUS);
r=inb(DAC_DATA);
g=inb(DAC_DATA);
b=inb(DAC_DATA);
printrgb(index, r, g, b, hexdata);
}
void program_rgb(int index, int r, int g, int b)
{
if (eightbit)
{
r>>=2; g>>=2; b>>=2;
}
WRITERGB(index, r, g, b);
if (index < 16)
{
/* kernel wants red in first byte, then green and then blue. */
kernel_palette[color_table[index]][0] = (unsigned char)r<<2;
kernel_palette[color_table[index]][1] = (unsigned char)g<<2;
kernel_palette[color_table[index]][2] = (unsigned char)b<<2;
}
}
void usage(int setreg)
{
if (setreg)
PMESSAGE(("version %s. (c) 1995-1998 Koen Gadeyne.\n Usage: %s [options] color_index <R> <G> <B>\n\n\
Options: -n Don't program VGA hardware\n\
-d print debugging information\n\
-x input palette values in hex instead of decimal\n\
-8 use 8-bit color definition (0..255) instead of 6-bit (0..63)\n\
-s load a standard VGA textmode palette.\n\
this is not necessarily the default system startup palette.\n\
(use `getpalette -s' to find out what palette this is\n\
-k do not tell kernel about color palette changes.\n\
Any post-1.3.2 kernel will then restore the old\n\
palette when switching consoles.\n\
-h print usage information\n\n\
color_index: index number in the palette look-up table (0..255).\n\
or '-' to use standard input\n\
(Input format = '<index>: <R-value> <G-value> <B-value>')\n\
R, G, B : color intensity for Red, Green or Blue (0..63).\n",
VERSION, CommandName));
else
PMESSAGE(("version %s. (c) 1995-1998 Koen Gadeyne.\n Usage: %s [options] <color_index>\n\n\
Options: -n Don't program VGA hardware\n\
-d print debugging information\n\
-x output palette values in hex instead of decimal\n\
-8 use 8-bit color definition (0..255) instead of 6-bit (0..63)\n\
-s print the built-in standard VGA textmode palette.\n\
this is the palette that will be programmed when running `setpalette -s'\n\
-h print usage information\n\n\
color_index: index number in the palette look-up table (0..255).\n\
or 'all' to show all 256 entries\n",
VERSION, CommandName));
}
int main (int argc, char* argv[])
{
int index,r,g,b;
char* commandfilename;
bool program_hardware=TRUE;
bool hexdata=FALSE;
bool stdpal=FALSE;
bool tellkernel=TRUE;
char c;
int fd = -1;
int kernel_can_do_cmap = FALSE;
/*
* See what action is required: read or write VGA register
*/
CommandName = argv[0];
commandfilename = strrchr(CommandName, '/');
if (commandfilename) commandfilename++;
else commandfilename = CommandName;
setreg = (!strncasecmp(commandfilename,"set",3));
/*
* command-line argument parsing
*/
while ((c = getopt (argc, argv, "ndxskh8")) != EOF)
switch (c)
{
case 'n': program_hardware=FALSE;
break;
case 'd': debug_messages=TRUE;
break;
case 'x': hexdata=TRUE;
break;
case '8': eightbit=TRUE;
break;
case 's': stdpal=TRUE;
break;
case 'k': tellkernel=FALSE;
break;
case 'h': usage(setreg);
exit(0);
break;
case '?': usage(setreg);
PERROR(("Bad option `-%c'\n",(char)optopt));
exit(-1);
break;
default: PERROR(("getopt returned unknown token '%c'.\n",c));
}
PVERSION;
PDEBUG(("'%cetpalette' function selected through command name '%s'\n", (setreg) ? 's' : 'g', commandfilename));
if (!stdpal)
{
/* get color-index from commandline , if '-' use stdin */
if (argc<optind+1) PERROR(("Missing color index (or `%s') on commandline\n", (setreg) ? "-" : "all" ));
}
if (!stdpal || setreg)
if (program_hardware) get_VGA_io_perm(CS_VGA);
kernel_can_do_cmap = check_kernel_version(1,3,3,"GIO_CMAP/PIO_CMAP");
/*
* Start doing something useful
*/
if (program_hardware && setreg && kernel_can_do_cmap && tellkernel)
{
fd = opentty( ConsoleDevice("0") );
if (ioctl(fd, GIO_CMAP, kernel_palette)) /* this ioctl first popped up in kernel 1.3.3 */
{
perror("GIO_CMAP");
PERROR(("Could not do GIO_CMAP on %s\n", ConsoleDevice("0")));
}
}
if (stdpal)
{
if (setreg)
{
if (program_hardware)
{
for (index=0; index<64; index++)
program_rgb(index,STD_PALETTE[index][0],STD_PALETTE[index][1],STD_PALETTE[index][2]);
for (index=64; index<256; index++)
program_rgb(index,0,0,0);
}
}
else
{
if (program_hardware)
{
for(index=0;index<64;index++)
printrgb(index, STD_PALETTE[index][0],STD_PALETTE[index][1],STD_PALETTE[index][2], hexdata);
for (index=64; index<256; index++)
printrgb(index,0,0,0, hexdata);
}
}
}
else
{
if (setreg)
{ /* setpalette */
if(!strcmp(argv[optind],"-")) /* use standard input */
{
char linebuf[1000];
int lc=0;
while(fgets(linebuf,999,stdin))
{
lc++;
r=g=b=-1;
if (hexdata)
sscanf(linebuf,"0x%02x: 0x%02x 0x%02x 0x%02x",&index,&r,&g,&b);
else
sscanf(linebuf,"%03d: %03d %03d %03d",&index,&r,&g,&b);
if(r==-1 || b==-1 || b==-1) PERROR(("Malformed line #%d\n",lc));
if (program_hardware) program_rgb(index,r,g,b);
}
}
else
{
index = getint(argv[optind], "color index", 0, 255);
optind++;
if (argc<optind+1) PERROR(("Missing color value R\n"));
r = getint(argv[optind], "Color value R", 0, eightbit ? 255 : 63);
optind++;
if (argc<optind+1) PERROR(("Missing color value G\n"));
g = getint(argv[optind], "Color value G", 0, eightbit ? 255 : 63);
optind++;
if (argc<optind+1) PERROR(("Missing color value B\n"));
b = getint(argv[optind], "Color value B", 0, eightbit ? 255 : 63);
PDEBUG(("Color index = %d (0x%x); Color values : R = %d (0x%x) , G = %d (0x%x) , B = %d (0x%x).\n", index, index, r, r, g, g, b, b));
if (program_hardware) program_rgb(index,r,g,b);
}
}
else
{ /* getpalette */
if(strcasecmp(argv[optind],"all"))
{
index = getint(argv[optind], "color index", 0, 255);
if (program_hardware) dumprgb(index, hexdata);
}
else
{
if (program_hardware) for(index=0;index<256;index++) dumprgb(index, hexdata);
}
}
}
if (program_hardware && setreg && kernel_can_do_cmap && tellkernel)
{
if (ioctl(fd, PIO_CMAP, kernel_palette))
{
perror("PIO_CMAP");
PERROR(("Could not do PIO_CMAP on %s\n", ConsoleDevice("0")));
}
close (fd);
}
exit(0);
}
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