Added vt100 emulation and sped up text writing, scrolling, etc.

This commit is contained in:
lkestel 1994-07-21 06:35:49 +00:00
parent 7fca65c005
commit 020b962ae6
1 changed files with 485 additions and 109 deletions

View File

@ -38,18 +38,16 @@
* from: Utah $Hdr: ite.c 1.28 92/12/20$
*
* from: @(#)ite.c 8.2 (Berkeley) 1/12/94
* $Id: ite.c,v 1.2 1994/07/09 06:49:36 briggs Exp $
* $Id: ite.c,v 1.3 1994/07/21 06:35:49 lkestel Exp $
*/
/*
* ite.c
*
* $Id: ite.c,v 1.2 1994/07/09 06:49:36 briggs Exp $
*
* The ite module handles the system console; that is, stuff printed
* by the kernel and by user programs while "desktop" and X aren't
* running. Some parts are based on hp300's 4.4 ite.c, hence the above
* copyright.
* running. Some (very small) parts are based on hp300's 4.4 ite.c,
* hence the above copyright.
*
* -- Brad and Lawrence, June 26th, 1994
*
@ -68,6 +66,7 @@
#include "../mac68k/via.h"
#include <machine/frame.h>
#define KEYBOARD_ARRAY
#include "keyboard.h"
#include "adbsys.h"
@ -77,6 +76,24 @@
#define dprintf if (0) printf
#define ATTR_NONE 0
#define ATTR_BOLD 1
#define ATTR_UNDER 2
#define ATTR_REVERSE 4
enum vt100state_e {
ESnormal, /* Nothing yet */
ESesc, /* Got ESC */
ESsquare, /* Got ESC [ */
ESgetpars, /* About to get or getting the parameters */
ESgotpars, /* Finished getting the parameters */
ESfunckey, /* Function key */
EShash, /* DEC-specific stuff (screen align, etc.) */
ESsetG0, /* Specify the G0 character set */
ESsetG1, /* Specify the G1 character set */
ESignore /* Ignore this sequence */
} vt100state = ESnormal;
/* Received from MacBSDBoot, stored by Locore: */
long videoaddr;
long videorowbytes;
@ -86,9 +103,13 @@ char serial_boot_echo = 0;
/* Calculated in itecninit(): */
static int width, height, scrrows, scrcols;
static void (*putpixel)(int x, int y, int *c, int num);
static void (*reversepixel)(int x, int y, int num);
/* Cursor location: */
static int x = 0, y = 0;
/* VT100 state: */
#define MAXPARS 16
static int x = 0, y = 0, savex, savey;
static int par[MAXPARS], numpars, hanging_cursor, attr;
/* Our tty: */
struct tty *ite_tty;
@ -99,161 +120,467 @@ extern int adb_polling;
/* Misc */
void itestart();
static void ite_putchar (char ch);
/*
* Bitmap handling functions
*/
static void putpixel(int xx, int yy, int c)
static inline void putpixel1(int xx, int yy, int *c, int num)
{
unsigned int mask, i;
unsigned int i, mask;
unsigned char *sc;
sc = (unsigned char *)videoaddr;
mask = (1 << videobitdepth) - 1;
c &= mask; /* Not right -- should shift */
switch (videobitdepth) {
case 1: i = 7 - (xx & 7);
c <<= i;
mask <<= i;
i = yy * videorowbytes + (xx >> 3);
sc[i] &= ~mask;
sc[i] |= c;
break;
case 2: i = 6 - ((xx & 3) << 1);
c <<= i;
mask <<= i;
i = yy * videorowbytes + (xx >> 2);
sc[i] &= ~mask;
sc[i] |= c;
break;
case 4: i = 4 - ((xx & 1) << 2);
c <<= i;
mask <<= i;
i = yy * videorowbytes + (xx >> 1);
sc[i] &= ~mask;
sc[i] |= c;
break;
case 8: sc[yy * videorowbytes + xx] = c;
break;
i = 7 - (xx & 7);
mask = ~(1 << i);
sc += yy * videorowbytes + (xx >> 3);
while (num--) {
*sc &= mask;
*sc |= (*c++ & 1) << i;
sc += videorowbytes;
}
}
static void writechar (char ch, int x, int y)
static void putpixel2(int xx, int yy, int *c, int num)
{
int i, j, mask;
unsigned int i, mask;
unsigned char *sc;
sc = (unsigned char *)videoaddr;
i = 6 - ((xx & 3) << 1);
mask = ~(3 << i);
sc += yy * videorowbytes + (xx >> 2);
while (num--) {
*sc &= mask;
*sc |= (*c++ & 3) << i;
sc += videorowbytes;
}
}
static void putpixel4(int xx, int yy, int *c, int num)
{
unsigned int i, mask;
unsigned char *sc;
sc = (unsigned char *)videoaddr;
i = 4 - ((xx & 1) << 2);
mask = ~(15 << i);
sc += yy * videorowbytes + (xx >> 1);
while (num--) {
*sc &= mask;
*sc |= (*c++ & 15) << i;
sc += videorowbytes;
}
}
static void putpixel8(int xx, int yy, int *c, int num)
{
unsigned char *sc;
sc = (unsigned char *)videoaddr;
sc += yy * videorowbytes + xx;
while (num--) {
*sc = *c++ & 0xff;
sc += videorowbytes;
}
}
static void reversepixel1(int xx, int yy, int num)
{
unsigned int mask;
unsigned char *sc;
sc = (unsigned char *)videoaddr;
switch (videobitdepth) {
case 1: mask = 1 << (7 - (xx & 7));
sc += yy * videorowbytes + (xx >> 3);
break;
case 2: mask = 3 << (6 - ((xx & 3) << 1));
sc += yy * videorowbytes + (xx >> 2);
break;
case 4: mask = 15 << (4 - ((xx & 1) << 2));
sc += yy * videorowbytes + (xx >> 1);
break;
case 8: mask = 255;
sc += yy * videorowbytes + xx;
break;
}
while (num--) {
*sc ^= mask;
sc += videorowbytes;
}
}
static void writechar (char ch, int x, int y, int attr)
{
int i, j, mask, rev, col[CHARHEIGHT];
unsigned char *c;
ch &= 0x7F;
x *= CHARWIDTH;
y *= CHARHEIGHT;
rev = (attr & ATTR_REVERSE) ? 255 : 0;
c = &Font6x10[ch * CHARHEIGHT];
for (i = 0; i < CHARHEIGHT; i++) {
mask = 1 << (CHARWIDTH - 1);
switch (videobitdepth) {
case 1:
for (j = 0; j < CHARWIDTH; j++) {
if (*c & mask) {
putpixel (x + j, y + i, 255);
} else {
putpixel (x + j, y + i, 0);
mask = 1 << (CHARWIDTH - 1 - j);
for (i = 0; i < CHARHEIGHT; i++) {
col[i] = ((c[i] & mask) ? 255 : 0) ^ rev;
}
mask >>= 1;
putpixel1 (x + j, y, col, CHARHEIGHT);
}
c++;
if (attr & ATTR_UNDER) {
col[0] = 255;
for (j = 0; j < CHARWIDTH; j++) {
putpixel1 (x + j, y + CHARHEIGHT - 1, col, 1);
}
}
break;
case 2:
case 4:
case 8:
for (j = 0; j < CHARWIDTH; j++) {
mask = 1 << (CHARWIDTH - 1 - j);
for (i = 0; i < CHARHEIGHT; i++) {
col[i] = ((c[i] & mask) ? 255 : 0) ^ rev;
}
putpixel (x + j, y, col, CHARHEIGHT);
}
if (attr & ATTR_UNDER) {
col[0] = 255;
for (j = 0; j < CHARWIDTH; j++) {
putpixel (x + j, y + CHARHEIGHT - 1, col, 1);
}
}
break;
}
}
static void drawcursor (void)
{
int i, j, X, Y;
int j, X, Y;
X = x * CHARWIDTH;
Y = y * CHARHEIGHT;
for (i = 0; i < CHARHEIGHT; i++) {
for (j = 0; j < CHARWIDTH; j++) {
putpixel (X + j, Y + i, 255);
}
reversepixel (X + j, Y, CHARHEIGHT);
}
}
static void erasecursor (void)
{
int i, j, X, Y;
int j, X, Y;
X = x * CHARWIDTH;
Y = y * CHARHEIGHT;
for (i = 0; i < CHARHEIGHT; i++) {
for (j = 0; j < CHARWIDTH; j++) {
putpixel (X + j, Y + i, 0);
}
reversepixel (X + j, Y, CHARHEIGHT);
}
}
static void scrollup (void)
{
unsigned long *from, *to;
int i;
int i, linelongs;
linelongs = videorowbytes * CHARHEIGHT / 4;
to = (unsigned long *)videoaddr;
from = to + videorowbytes * CHARHEIGHT / 4;
from = to + linelongs;
for (i = (scrrows - 1) * videorowbytes * CHARHEIGHT / 4; i > 0; i--) {
*to++ = *from++;
bcopy (from, to, (scrrows - 1) * linelongs * sizeof (long));
bzero (to + (scrrows - 1) * linelongs, linelongs * sizeof (long));
}
static void scrolldown (void)
{
unsigned long *from, *to;
int i, linelongs;
linelongs = videorowbytes * CHARHEIGHT / 4;
to = (unsigned long *)videoaddr + linelongs * scrrows;
from = to - linelongs;
for (i = (scrrows - 1) * linelongs; i > 0; i--) {
*--to = *--from;
}
for (i = videorowbytes * CHARHEIGHT / 4; i > 0; i--) {
*to++ = 0;
for (i = linelongs; i > 0; i--) {
*--to = 0;
}
}
static void clearscreen (void)
static void clear_screen (int which)
{
unsigned long *p;
int i;
int i, linelongs;
p = (unsigned long *)videoaddr;
linelongs = videorowbytes * CHARHEIGHT / 4;
for (i = scrrows * videorowbytes * CHARHEIGHT / 4; i > 0; i--) {
*p++ = 0;
switch (which) {
case 0: /* To end of screen */
p += y * linelongs;
i = (scrrows - y) * linelongs;
break;
case 1: /* To start of screen */
i = y * linelongs;
break;
case 2: /* Whole screen */
i = scrrows * linelongs;
break;
}
bzero (p, i * sizeof (long));
}
static void clear_line (int which)
{
int start, end, i;
/*
* This routine runs extremely slowly. I don't think it's
* used all that often, except for To end of line. I'll go
* back and speed this up when I speed up the whole ite
* module. --LK
*/
switch (which) {
case 0: /* To end of line */
start = x;
end = scrcols;
break;
case 1: /* To start of line */
start = 0;
end = x;
break;
case 2: /* Whole line */
start = 0;
end = scrcols;
break;
}
for (i = start; i < end; i++) {
writechar (' ', i, y, ATTR_NONE);
}
}
static void ite_putchar (char ch)
static void putc_normal (char ch)
{
switch (ch) {
case 7: /* Beep */
case '\a': /* Beep */
break;
case 127: /* Delete */
case 8: if (x > 0) { /* Backspace */
case '\b': /* Backspace */
if (hanging_cursor) {
hanging_cursor = 0;
} else if (x > 0) {
x--;
}
break;
case 9: do { /* Tab */
case '\t': /* Tab */
do {
ite_putchar (' ');
} while (x % 8 != 0);
break;
case 10: y++; /* Line feed */
case '\n': /* Line feed */
y++;
if (y >= scrrows) {
scrollup ();
y = scrrows - 1;
}
break;
case 13: x = 0; /* Carriage return */
case '\r': /* Carriage return */
x = 0;
hanging_cursor = 0;
break;
case '\e': /* Escape */
vt100state = ESesc;
hanging_cursor = 0;
break;
default:
if (ch >= ' ') {
writechar (ch, x, y);
x++;
if (hanging_cursor) {
x = 0;
y++;
if (y >= scrrows) {
scrollup ();
y = scrrows - 1;
}
break;
hanging_cursor = 0;
}
writechar (ch, x, y, attr);
if (x == scrcols - 1) {
hanging_cursor = 1;
} else {
x++;
}
if (x >= scrcols) {
x = 0;
y++;
}
if (y >= scrrows) {
scrollup ();
}
break;
}
}
static void putc_esc (char ch)
{
vt100state = ESnormal;
switch (ch) {
case '[':
vt100state = ESsquare;
break;
case 'D': /* Line feed */
y++;
break;
case 'H': /* Set tab stop */
/* Not supported */
break;
case 'M': /* Cursor up */
if (y == 0) {
scrolldown ();
} else {
y--;
}
break;
case '7': /* Save cursor */
savex = x;
savey = y;
break;
case '8': /* Restore cursor */
x = savex;
y = savey;
break;
default:
/* Rest not supported */
break;
}
}
static void putc_gotpars (char ch)
{
int i;
vt100state = ESnormal;
switch (ch) {
case 'A': /* Up */
y--;
break;
case 'B': /* Down */
y++;
break;
case 'C': /* Right */
x++;
break;
case 'D': /* Left */
x--;
break;
case 'H': /* Set cursor position */
x = par[1] - 1;
y = par[0] - 1;
hanging_cursor = 0;
break;
case 'J': /* Clear part of screen */
clear_screen (par[0]);
break;
case 'K': /* Clear part of line */
clear_line (par[0]);
break;
case 'g': /* Clear tab stops */
/* Not supported */
break;
case 'm': /* Set attribute */
for (i = 0; i < numpars; i++) {
switch (par[i]) {
case 0: attr = ATTR_NONE; break;
case 1: attr |= ATTR_BOLD; break;
case 4: attr |= ATTR_UNDER; break;
case 7: attr |= ATTR_REVERSE; break;
}
}
break;
case 'r': /* Set scroll region */
/* Not supported */
break;
}
}
static void putc_getpars (char ch)
{
if (ch == '?') {
/* Not supported */
return;
}
if (ch == '[') {
vt100state = ESnormal;
/* Not supported */
return;
}
if (ch == ';' && numpars < MAXPARS - 1) {
numpars++;
} else if (ch >= '0' && ch <= '9') {
par[numpars] *= 10;
par[numpars] += ch - '0';
} else {
numpars++;
vt100state = ESgotpars;
putc_gotpars (ch);
}
}
static void putc_square (char ch)
{
int i;
for (i = 0; i < MAXPARS; i++) {
par[i] = 0;
}
numpars = 0;
vt100state = ESgetpars;
putc_getpars (ch);
}
static void ite_putchar (char ch)
{
switch (vt100state) {
default: vt100state = ESnormal; /* FALLTHROUGH */
case ESnormal: putc_normal (ch); break;
case ESesc: putc_esc (ch); break;
case ESsquare: putc_square (ch); break;
case ESgetpars: putc_getpars (ch); break;
case ESgotpars: putc_gotpars (ch); break;
}
if (x >= scrcols) {
x = scrcols - 1;
}
if (x < 0) {
x = 0;
}
if (y >= scrrows) {
y = scrrows - 1;
}
if (y < 0) {
y = 0;
}
}
/*
@ -408,12 +735,14 @@ void itestart (register struct tty *tp)
tp->t_state |= TS_BUSY;
cc = tp->t_outq.c_cc;
splx(s);
erasecursor ();
while (cc-- > 0) {
ite_putchar (getc (&tp->t_outq));
}
drawcursor ();
s = spltty();
tp->t_state &= ~TS_BUSY;
splx(s);
}
@ -434,7 +763,8 @@ void itestop (struct tty *tp, int flag)
ite_intr (adb_event_t *event)
{
static int shift = 0, control = 0;
int key, press, val, state, ch;
int key, press, val, state;
char str[10], *s;
key = event->u.k.key;
press = ADBK_PRESS (key);
@ -445,6 +775,32 @@ ite_intr (adb_event_t *event)
} else if (val == ADBK_CONTROL) {
control = press;
} else if (press) {
switch (val) {
case ADBK_UP:
str[0] = '\e';
str[1] = 'O';
str[2] = 'A';
str[3] = '\0';
break;
case ADBK_DOWN:
str[0] = '\e';
str[1] = 'O';
str[2] = 'B';
str[3] = '\0';
break;
case ADBK_RIGHT:
str[0] = '\e';
str[1] = 'O';
str[2] = 'C';
str[3] = '\0';
break;
case ADBK_LEFT:
str[0] = '\e';
str[1] = 'O';
str[2] = 'D';
str[3] = '\0';
break;
default:
state = 0;
if (shift) {
state = 1;
@ -452,12 +808,15 @@ ite_intr (adb_event_t *event)
if (control) {
state = 2;
}
ch = keyboard[val][state];
if (ch != '\0') {
str[0] = keyboard[val][state];
str[1] = '\0';
break;
}
if (adb_polling) {
polledkey = ch;
polledkey = str[0];
} else {
(*linesw[ite_tty->t_line].l_rint)(ch, ite_tty);
for (s = str; *s; s++) {
(*linesw[ite_tty->t_line].l_rint)(*s, ite_tty);
}
}
}
@ -496,7 +855,24 @@ itecninit(struct consdev *cp)
scrrows = height / CHARHEIGHT;
scrcols = width / CHARWIDTH;
clearscreen ();
switch (videobitdepth) {
default:
case 1: putpixel = putpixel2;
reversepixel = reversepixel1;
break;
case 2: putpixel = putpixel2;
reversepixel = reversepixel1;
break;
case 4: putpixel = putpixel4;
reversepixel = reversepixel1;
break;
case 8: putpixel = putpixel8;
reversepixel = reversepixel1;
break;
}
clear_screen (2);
drawcursor ();
}
itecngetc(dev_t dev)
@ -517,11 +893,11 @@ itecnputc(dev_t dev, int c)
#endif
}
s = splhigh ();
/* s = splhigh (); */
erasecursor ();
ite_putchar (c);
drawcursor ();
splx (s);
/* splx (s); */
}