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tty.c
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tty.c
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/*
* TTY handling for QEmacs
*
* Copyright (c) 2000,2001 Fabrice Bellard.
* Copyright (c) 2002-2008 Charlie Gordon.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <unistd.h>
#include <termios.h>
#include <unistd.h>
#include <fcntl.h>
#include <signal.h>
#include <sys/ioctl.h>
#include <sys/time.h>
#include "qe.h"
typedef unsigned int TTYChar;
#define TTYCHAR(ch,fg,bg) ((ch) | ((fg) << 16) | ((bg) << 24))
#define TTYCHAR2(ch,col) ((ch) | ((col) << 16))
#define TTYCHAR_GETCH(cc) ((cc) & 0xFFFF)
#define TTYCHAR_GETCOL(cc) (((cc) >> 16) & 0xFFFF)
#define TTYCHAR_GETFG(cc) (((cc) >> 16) & 0xFF)
#define TTYCHAR_GETBG(cc) (((cc) >> 24) & 0xFF)
#define TTYCHAR_DEFAULT TTYCHAR(' ', 7, 0)
#if defined(CONFIG_UNLOCKIO)
# define TTY_PUTC(c,f) putc_unlocked(c, f)
# define TTY_FWRITE(b,s,n,f) fwrite_unlocked(b, s, n, f)
# define TTY_FPRINTF fprintf
static inline void TTY_FPUTS(const char *s, FILE *fp) {
TTY_FWRITE(s, 1, strlen(s), fp);
}
#else
# define TTY_PUTC(c,f) putc(c, f)
# define TTY_FWRITE(b,s,n,f) fwrite(b, s, n, f)
# define TTY_FPRINTF fprintf
# define TTY_FPUTS fputs
#endif
enum InputState {
IS_NORM,
IS_ESC,
IS_CSI,
IS_CSI2,
IS_ESC2,
};
enum TermCode {
TERM_UNKNOWN = 0,
TERM_ANSI,
TERM_VT100,
TERM_XTERM,
TERM_LINUX,
TERM_CYGWIN,
};
typedef struct TTYState {
TTYChar *screen;
int screen_size;
unsigned char *line_updated;
struct termios oldtty;
int cursor_x, cursor_y;
/* input handling */
enum InputState input_state;
int input_param;
int utf8_state;
int utf8_index;
unsigned char buf[10];
char *term_name;
enum TermCode term_code;
int term_flags;
#define KBS_CONTROL_H 1
#define USE_BOLD_AS_BRIGHT 2
#define USE_BLINK_AS_BRIGHT 4
#define USE_ERASE_END_OF_LINE 8
} TTYState;
static void tty_resize(int sig);
static void tty_term_exit(void);
static void tty_read_handler(void *opaque);
static struct TTYState tty_state;
static QEditScreen *tty_screen;
static int tty_term_probe(void)
{
return 1;
}
static int tty_term_init(QEditScreen *s,
__unused__ int w, __unused__ int h)
{
TTYState *ts;
struct termios tty;
struct sigaction sig;
s->STDIN = stdin;
s->STDOUT = stdout;
tty_screen = s;
ts = &tty_state;
s->private = ts;
s->media = CSS_MEDIA_TTY;
/* Derive some settings from the TERM environment variable */
tty_state.term_code = TERM_UNKNOWN;
tty_state.term_flags = USE_ERASE_END_OF_LINE;
tty_state.term_name = getenv("TERM");
if (tty_state.term_name) {
/* linux and xterm -> kbs=\177
* ansi cygwin vt100 -> kbs=^H
*/
if (strstart(tty_state.term_name, "ansi", NULL)) {
tty_state.term_code = TERM_ANSI;
tty_state.term_flags |= KBS_CONTROL_H;
} else
if (strstart(tty_state.term_name, "vt100", NULL)) {
tty_state.term_code = TERM_VT100;
tty_state.term_flags |= KBS_CONTROL_H;
} else
if (strstart(tty_state.term_name, "xterm", NULL)) {
tty_state.term_code = TERM_XTERM;
} else
if (strstart(tty_state.term_name, "linux", NULL)) {
tty_state.term_code = TERM_LINUX;
} else
if (strstart(tty_state.term_name, "cygwin", NULL)) {
tty_state.term_code = TERM_CYGWIN;
tty_state.term_flags |= KBS_CONTROL_H |
USE_BOLD_AS_BRIGHT | USE_BLINK_AS_BRIGHT;
}
}
tcgetattr(fileno(s->STDIN), &tty);
ts->oldtty = tty;
tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
|INLCR|IGNCR|ICRNL|IXON);
tty.c_oflag |= OPOST;
tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
tty.c_cflag &= ~(CSIZE|PARENB);
tty.c_cflag |= CS8;
tty.c_cc[VMIN] = 1;
tty.c_cc[VTIME] = 0;
tcsetattr(fileno(s->STDIN), TCSANOW, &tty);
/* First switch to full screen mode */
#if 0
printf("\033[?1048h\033[?1047h" /* enable cup */
"\033)0\033(B" /* select character sets in block 0 and 1 */
"\017"); /* shift out */
#else
TTY_FPRINTF(s->STDOUT,
"\033[?1049h" /* enter_ca_mode */
"\033[m\033(B" /* exit_attribute_mode */
"\033[4l" /* exit_insert_mode */
"\033[?7h" /* enter_am_mode */
"\033[39;49m" /* orig_pair */
"\033[?1h\033=" /* keypad_xmit */
);
#endif
/* Get charset from command line option */
s->charset = find_charset(qe_state.tty_charset);
if (tty_state.term_code == TERM_CYGWIN)
s->charset = &charset_8859_1;
if (!s->charset && !isatty(fileno(s->STDOUT)))
s->charset = &charset_8859_1;
if (!s->charset) {
int y, x, n;
s->charset = &charset_8859_1;
/* Test UTF8 support by looking at the cursor position (idea
* from Ricardas Cepas <rch@pub.osf.lt>). Since uClibc actually
* tests to ensure that the format string is a valid multibyte
* sequence in the current locale (ANSI/ISO C99), use a format
* specifier of %s to avoid printf() failing with EILSEQ.
*/
/* ^X ^Z ^M \170101 */
//printf("%s", "\030\032" "\r\xEF\x81\x81" "\033[6n\033D");
/* Just print utf-8 encoding for eacute and check cursor position */
TTY_FPRINTF(s->STDOUT, "%s",
"\030\032" "\r\xC3\xA9" "\033[6n\033D");
fflush(s->STDOUT);
n = fscanf(s->STDIN, "\033[%d;%d", &y, &x); /* get cursor position */
TTY_FPRINTF(s->STDOUT, "\r \r"); /* go back, erase 3 chars */
if (n == 2 && x == 2) {
s->charset = &charset_utf8;
}
}
put_status(NULL, "tty charset: %s", s->charset->name);
atexit(tty_term_exit);
sig.sa_handler = tty_resize;
sigemptyset(&sig.sa_mask);
sig.sa_flags = 0;
sigaction(SIGWINCH, &sig, NULL);
fcntl(fileno(s->STDIN), F_SETFL, O_NONBLOCK);
/* If stdout is to a pty, make sure we aren't in nonblocking mode.
* Otherwise, the printf()s in term_flush() can fail with EAGAIN,
* causing repaint errors when running in an xterm or in a screen
* session. */
fcntl(fileno(s->STDOUT), F_SETFL, 0);
set_read_handler(fileno(s->STDIN), tty_read_handler, s);
tty_resize(0);
if (tty_state.term_flags & KBS_CONTROL_H) {
do_toggle_control_h(NULL, 1);
}
return 0;
}
static void tty_term_close(QEditScreen *s)
{
fcntl(fileno(s->STDIN), F_SETFL, 0);
#if 0
/* go to the last line */
printf("\033[%d;%dH\033[m\033[K"
"\033[?1047l\033[?1048l", /* disable cup */
s->height, 1);
#else
/* go to last line and clear it */
TTY_FPRINTF(s->STDOUT, "\033[%d;%dH\033[m\033[K", s->height, 1);
TTY_FPRINTF(s->STDOUT,
"\033[?1049l" /* exit_ca_mode */
"\r" /* return */
"\033[?1l\033>" /* keypad_local */
"\r" /* return */
);
#endif
fflush(s->STDOUT);
}
static void tty_term_exit(void)
{
QEditScreen *s = tty_screen;
TTYState *ts = s->private;
tcsetattr(fileno(s->STDIN), TCSANOW, &ts->oldtty);
}
static void tty_resize(__unused__ int sig)
{
QEditScreen *s = tty_screen;
TTYState *ts = s->private;
struct winsize ws;
int i, count, size;
TTYChar tc;
s->width = 80;
s->height = 24;
if (ioctl(fileno(s->STDIN), TIOCGWINSZ, &ws) == 0) {
s->width = ws.ws_col;
s->height = ws.ws_row;
if (s->width > MAX_SCREEN_WIDTH)
s->width = MAX_SCREEN_WIDTH;
if (s->height < 3)
s->height = 3;
}
count = s->width * s->height;
size = count * sizeof(TTYChar);
/* screen buffer + shadow buffer + extra slot for loop guard */
qe_realloc(&ts->screen, size * 2 + 1);
qe_realloc(&ts->line_updated, s->height);
ts->screen_size = count;
/* Erase shadow buffer to impossible value */
memset(ts->screen + count, 0xFF, size);
/* Fill screen buffer with black spaces */
tc = TTYCHAR_DEFAULT;
for (i = 0; i < count; i++) {
ts->screen[i] = tc;
}
/* All rows need refresh */
memset(ts->line_updated, 1, s->height);
s->clip_x1 = 0;
s->clip_y1 = 0;
s->clip_x2 = s->width;
s->clip_y2 = s->height;
}
static void tty_term_invalidate(QEditScreen *s)
{
tty_resize(0);
}
static void tty_term_cursor_at(QEditScreen *s, int x1, int y1,
__unused__ int w, __unused__ int h)
{
TTYState *ts = s->private;
ts->cursor_x = x1;
ts->cursor_y = y1;
}
static int tty_term_is_user_input_pending(QEditScreen *s)
{
fd_set rfds;
struct timeval tv;
tv.tv_sec = 0;
tv.tv_usec = 0;
FD_ZERO(&rfds);
FD_SET(fileno(s->STDIN), &rfds);
if (select(fileno(s->STDIN) + 1, &rfds, NULL, NULL, &tv) > 0)
return 1;
else
return 0;
}
static int const csi_lookup[] = {
KEY_NONE, /* 0 */
KEY_HOME, /* 1 */
KEY_INSERT, /* 2 */
KEY_DELETE, /* 3 */
KEY_END, /* 4 */
KEY_PAGEUP, /* 5 */
KEY_PAGEDOWN, /* 6 */
KEY_NONE, /* 7 */
KEY_NONE, /* 8 */
KEY_NONE, /* 9 */
KEY_NONE, /* 10 */
KEY_F1, /* 11 */
KEY_F2, /* 12 */
KEY_F3, /* 13 */
KEY_F4, /* 14 */
KEY_F5, /* 15 */
KEY_NONE, /* 16 */
KEY_F6, /* 17 */
KEY_F7, /* 18 */
KEY_F8, /* 19 */
KEY_F9, /* 20 */
KEY_F10, /* 21 */
KEY_NONE, /* 22 */
KEY_F11, /* 23 */
KEY_F12, /* 24 */
KEY_F13, /* 25 */
KEY_F14, /* 26 */
KEY_NONE, /* 27 */
KEY_F15, /* 28 */
KEY_F16, /* 29 */
KEY_NONE, /* 30 */
KEY_F17, /* 31 */
KEY_F18, /* 32 */
KEY_F19, /* 33 */
KEY_F20, /* 34 */
};
static void tty_read_handler(void *opaque)
{
QEditScreen *s = opaque;
QEmacsState *qs = &qe_state;
TTYState *ts = s->private;
int ch;
QEEvent ev1, *ev = &ev1;
if (read(fileno(s->STDIN), ts->buf + ts->utf8_index, 1) != 1)
return;
if (qs->trace_buffer &&
qs->active_window &&
qs->active_window->b != qs->trace_buffer) {
eb_trace_bytes(ts->buf + ts->utf8_index, 1, EB_TRACE_TTY);
}
/* charset handling */
if (s->charset == &charset_utf8) {
if (ts->utf8_state == 0) {
const char *p;
p = (const char *)ts->buf;
ch = utf8_decode(&p);
} else {
ts->utf8_state = utf8_length[ts->buf[0]] - 1;
ts->utf8_index = 0;
return;
}
} else {
ch = ts->buf[0];
}
switch (ts->input_state) {
case IS_NORM:
if (ch == '\033')
ts->input_state = IS_ESC;
else
goto the_end;
break;
case IS_ESC:
if (ch == '\033') {
/* cygwin A-right transmit ESC ESC[C ... */
goto the_end;
}
if (ch == '[') {
ts->input_state = IS_CSI;
ts->input_param = 0;
} else if (ch == 'O') {
ts->input_state = IS_ESC2;
} else {
ch = KEY_META(ch);
ts->input_state = IS_NORM;
goto the_end;
}
break;
case IS_CSI:
if (qe_isdigit(ch)) {
ts->input_param = ts->input_param * 10 + ch - '0';
break;
}
ts->input_state = IS_NORM;
switch (ch) {
case '[':
ts->input_state = IS_CSI2;
break;
case '~':
if (ts->input_param < countof(csi_lookup)) {
ch = csi_lookup[ts->input_param];
goto the_end;
}
break;
/* All these for ansi|cygwin */
case 'A': ch = KEY_UP; goto the_end; // kcuu1
case 'B': ch = KEY_DOWN; goto the_end; // kcud1
case 'C': ch = KEY_RIGHT; goto the_end; // kcuf1
case 'D': ch = KEY_LEFT; goto the_end; // kcub1
case 'F': ch = KEY_END; goto the_end; // kend
//case 'G': ch = KEY_CENTER; goto the_end; // kb2
case 'H': ch = KEY_HOME; goto the_end; // khome
case 'L': ch = KEY_INSERT; goto the_end; // kich1
//case 'M': ch = KEY_MOUSE; goto the_end; // kmous
case 'Z': ch = KEY_SHIFT_TAB; goto the_end; // kcbt
default:
#if 0 /* xterm CTRL-arrows */
if (ts->input_param == 5) {
switch (ch) {
case 'A': ch = KEY_CTRL_UP; goto the_end;
case 'B': ch = KEY_CTRL_DOWN; goto the_end;
case 'C': ch = KEY_CTRL_RIGHT; goto the_end;
case 'D': ch = KEY_CTRL_LEFT; goto the_end;
}
}
#endif
break;
}
break;
case IS_CSI2:
/* cygwin/linux terminal */
ts->input_state = IS_NORM;
switch (ch) {
case 'A': ch = KEY_F1; goto the_end;
case 'B': ch = KEY_F2; goto the_end;
case 'C': ch = KEY_F3; goto the_end;
case 'D': ch = KEY_F4; goto the_end;
case 'E': ch = KEY_F5; goto the_end;
}
break;
case IS_ESC2: // "\EO"
/* xterm/vt100 fn */
ts->input_state = IS_NORM;
switch (ch) {
case 'A': ch = KEY_UP; goto the_end;
case 'B': ch = KEY_DOWN; goto the_end;
case 'C': ch = KEY_RIGHT; goto the_end;
case 'D': ch = KEY_LEFT; goto the_end;
case 'P': ch = KEY_F1; goto the_end;
case 'Q': ch = KEY_F2; goto the_end;
case 'R': ch = KEY_F3; goto the_end;
case 'S': ch = KEY_F4; goto the_end;
case 't': ch = KEY_F5; goto the_end;
case 'u': ch = KEY_F6; goto the_end;
case 'v': ch = KEY_F7; goto the_end;
case 'l': ch = KEY_F8; goto the_end;
case 'w': ch = KEY_F9; goto the_end;
case 'x': ch = KEY_F10; goto the_end;
}
break;
the_end:
ev->key_event.type = QE_KEY_EVENT;
ev->key_event.key = ch;
qe_handle_event(ev);
break;
}
}
#if 0
unsigned int const tty_full_colors[8] = {
QERGB(0x00, 0x00, 0x00),
QERGB(0xff, 0x00, 0x00),
QERGB(0x00, 0xff, 0x00),
QERGB(0xff, 0xff, 0x00),
QERGB(0x00, 0x00, 0xff),
QERGB(0xff, 0x00, 0xff),
QERGB(0x00, 0xff, 0xff),
QERGB(0xff, 0xff, 0xff),
};
#endif
static unsigned int const tty_putty_colors[256] = {
QERGB(0x00, 0x00, 0x00),
QERGB(0xbb, 0x00, 0x00),
QERGB(0x00, 0xbb, 0x00),
QERGB(0xbb, 0xbb, 0x00),
QERGB(0x00, 0x00, 0xbb),
QERGB(0xbb, 0x00, 0xbb),
QERGB(0x00, 0xbb, 0xbb),
QERGB(0xbb, 0xbb, 0xbb),
QERGB(0x55, 0x55, 0x55),
QERGB(0xff, 0x55, 0x55),
QERGB(0x55, 0xff, 0x55),
QERGB(0xff, 0xff, 0x55),
QERGB(0x55, 0x55, 0xff),
QERGB(0xff, 0x55, 0xff),
QERGB(0x55, 0xff, 0xff),
QERGB(0xff, 0xff, 0xff),
#if 1
/* Extended color palette for xterm 256 color mode */
/* From XFree86: xc/programs/xterm/256colres.h,
* v 1.5 2002/10/05 17:57:11 dickey Exp
*/
/* 216 entry RGB cube with axes 0,95,135,175,215,255 */
/* followed by 24 entry grey scale 8,18..238 */
QERGB(0x00, 0x00, 0x00), /* 16: Grey0 */
QERGB(0x00, 0x00, 0x5f), /* 17: NavyBlue */
QERGB(0x00, 0x00, 0x87), /* 18: DarkBlue */
QERGB(0x00, 0x00, 0xaf), /* 19: Blue3 */
QERGB(0x00, 0x00, 0xd7), /* 20: Blue3 */
QERGB(0x00, 0x00, 0xff), /* 21: Blue1 */
QERGB(0x00, 0x5f, 0x00), /* 22: DarkGreen */
QERGB(0x00, 0x5f, 0x5f), /* 23: DeepSkyBlue4 */
QERGB(0x00, 0x5f, 0x87), /* 24: DeepSkyBlue4 */
QERGB(0x00, 0x5f, 0xaf), /* 25: DeepSkyBlue4 */
QERGB(0x00, 0x5f, 0xd7), /* 26: DodgerBlue3 */
QERGB(0x00, 0x5f, 0xff), /* 27: DodgerBlue2 */
QERGB(0x00, 0x87, 0x00), /* 28: Green4 */
QERGB(0x00, 0x87, 0x5f), /* 29: SpringGreen4 */
QERGB(0x00, 0x87, 0x87), /* 30: Turquoise4 */
QERGB(0x00, 0x87, 0xaf), /* 31: DeepSkyBlue3 */
QERGB(0x00, 0x87, 0xd7), /* 32: DeepSkyBlue3 */
QERGB(0x00, 0x87, 0xff), /* 33: DodgerBlue1 */
QERGB(0x00, 0xaf, 0x00), /* 34: Green3 */
QERGB(0x00, 0xaf, 0x5f), /* 35: SpringGreen3 */
QERGB(0x00, 0xaf, 0x87), /* 36: DarkCyan */
QERGB(0x00, 0xaf, 0xaf), /* 37: LightSeaGreen */
QERGB(0x00, 0xaf, 0xd7), /* 38: DeepSkyBlue2 */
QERGB(0x00, 0xaf, 0xff), /* 39: DeepSkyBlue1 */
QERGB(0x00, 0xd7, 0x00), /* 40: Green3 */
QERGB(0x00, 0xd7, 0x5f), /* 41: SpringGreen3 */
QERGB(0x00, 0xd7, 0x87), /* 42: SpringGreen2 */
QERGB(0x00, 0xd7, 0xaf), /* 43: Cyan3 */
QERGB(0x00, 0xd7, 0xd7), /* 44: DarkTurquoise */
QERGB(0x00, 0xd7, 0xff), /* 45: Turquoise2 */
QERGB(0x00, 0xff, 0x00), /* 46: Green1 */
QERGB(0x00, 0xff, 0x5f), /* 47: SpringGreen2 */
QERGB(0x00, 0xff, 0x87), /* 48: SpringGreen1 */
QERGB(0x00, 0xff, 0xaf), /* 49: MediumSpringGreen */
QERGB(0x00, 0xff, 0xd7), /* 50: Cyan2 */
QERGB(0x00, 0xff, 0xff), /* 51: Cyan1 */
QERGB(0x5f, 0x00, 0x00), /* 52: DarkRed */
QERGB(0x5f, 0x00, 0x5f), /* 53: DeepPink4 */
QERGB(0x5f, 0x00, 0x87), /* 54: Purple4 */
QERGB(0x5f, 0x00, 0xaf), /* 55: Purple4 */
QERGB(0x5f, 0x00, 0xd7), /* 56: Purple3 */
QERGB(0x5f, 0x00, 0xff), /* 57: BlueViolet */
QERGB(0x5f, 0x5f, 0x00), /* 58: Orange4 */
QERGB(0x5f, 0x5f, 0x5f), /* 59: Grey37 */
QERGB(0x5f, 0x5f, 0x87), /* 60: MediumPurple4 */
QERGB(0x5f, 0x5f, 0xaf), /* 61: SlateBlue3 */
QERGB(0x5f, 0x5f, 0xd7), /* 62: SlateBlue3 */
QERGB(0x5f, 0x5f, 0xff), /* 63: RoyalBlue1 */
QERGB(0x5f, 0x87, 0x00), /* 64: Chartreuse4 */
QERGB(0x5f, 0x87, 0x5f), /* 65: DarkSeaGreen4 */
QERGB(0x5f, 0x87, 0x87), /* 66: PaleTurquoise4 */
QERGB(0x5f, 0x87, 0xaf), /* 67: SteelBlue */
QERGB(0x5f, 0x87, 0xd7), /* 68: SteelBlue3 */
QERGB(0x5f, 0x87, 0xff), /* 69: CornflowerBlue */
QERGB(0x5f, 0xaf, 0x00), /* 70: Chartreuse3 */
QERGB(0x5f, 0xaf, 0x5f), /* 71: DarkSeaGreen4 */
QERGB(0x5f, 0xaf, 0x87), /* 72: CadetBlue */
QERGB(0x5f, 0xaf, 0xaf), /* 73: CadetBlue */
QERGB(0x5f, 0xaf, 0xd7), /* 74: SkyBlue3 */
QERGB(0x5f, 0xaf, 0xff), /* 75: SteelBlue1 */
QERGB(0x5f, 0xd7, 0x00), /* 76: Chartreuse3 */
QERGB(0x5f, 0xd7, 0x5f), /* 77: PaleGreen3 */
QERGB(0x5f, 0xd7, 0x87), /* 78: SeaGreen3 */
QERGB(0x5f, 0xd7, 0xaf), /* 79: Aquamarine3 */
QERGB(0x5f, 0xd7, 0xd7), /* 80: MediumTurquoise */
QERGB(0x5f, 0xd7, 0xff), /* 81: SteelBlue1 */
QERGB(0x5f, 0xff, 0x00), /* 82: Chartreuse2 */
QERGB(0x5f, 0xff, 0x5f), /* 83: SeaGreen2 */
QERGB(0x5f, 0xff, 0x87), /* 84: SeaGreen1 */
QERGB(0x5f, 0xff, 0xaf), /* 85: SeaGreen1 */
QERGB(0x5f, 0xff, 0xd7), /* 86: Aquamarine1 */
QERGB(0x5f, 0xff, 0xff), /* 87: DarkSlateGray2 */
QERGB(0x87, 0x00, 0x00), /* 88: DarkRed */
QERGB(0x87, 0x00, 0x5f), /* 89: DeepPink4 */
QERGB(0x87, 0x00, 0x87), /* 90: DarkMagenta */
QERGB(0x87, 0x00, 0xaf), /* 91: DarkMagenta */
QERGB(0x87, 0x00, 0xd7), /* 92: DarkViolet */
QERGB(0x87, 0x00, 0xff), /* 93: Purple */
QERGB(0x87, 0x5f, 0x00), /* 94: Orange4 */
QERGB(0x87, 0x5f, 0x5f), /* 95: LightPink4 */
QERGB(0x87, 0x5f, 0x87), /* 96: Plum4 */
QERGB(0x87, 0x5f, 0xaf), /* 97: MediumPurple3 */
QERGB(0x87, 0x5f, 0xd7), /* 98: MediumPurple3 */
QERGB(0x87, 0x5f, 0xff), /* 99: SlateBlue1 */
QERGB(0x87, 0x87, 0x00), /* 100: Yellow4 */
QERGB(0x87, 0x87, 0x5f), /* 101: Wheat4 */
QERGB(0x87, 0x87, 0x87), /* 102: Grey53 */
QERGB(0x87, 0x87, 0xaf), /* 103: LightSlateGrey */
QERGB(0x87, 0x87, 0xd7), /* 104: MediumPurple */
QERGB(0x87, 0x87, 0xff), /* 105: LightSlateBlue */
QERGB(0x87, 0xaf, 0x00), /* 106: Yellow4 */
QERGB(0x87, 0xaf, 0x5f), /* 107: DarkOliveGreen3 */
QERGB(0x87, 0xaf, 0x87), /* 108: DarkSeaGreen */
QERGB(0x87, 0xaf, 0xaf), /* 109: LightSkyBlue3 */
QERGB(0x87, 0xaf, 0xd7), /* 110: LightSkyBlue3 */
QERGB(0x87, 0xaf, 0xff), /* 111: SkyBlue2 */
QERGB(0x87, 0xd7, 0x00), /* 112: Chartreuse2 */
QERGB(0x87, 0xd7, 0x5f), /* 113: DarkOliveGreen3 */
QERGB(0x87, 0xd7, 0x87), /* 114: PaleGreen3 */
QERGB(0x87, 0xd7, 0xaf), /* 115: DarkSeaGreen3 */
QERGB(0x87, 0xd7, 0xd7), /* 116: DarkSlateGray3 */
QERGB(0x87, 0xd7, 0xff), /* 117: SkyBlue1 */
QERGB(0x87, 0xff, 0x00), /* 118: Chartreuse1 */
QERGB(0x87, 0xff, 0x5f), /* 119: LightGreen */
QERGB(0x87, 0xff, 0x87), /* 120: LightGreen */
QERGB(0x87, 0xff, 0xaf), /* 121: PaleGreen1 */
QERGB(0x87, 0xff, 0xd7), /* 122: Aquamarine1 */
QERGB(0x87, 0xff, 0xff), /* 123: DarkSlateGray1 */
QERGB(0xaf, 0x00, 0x00), /* 124: Red3 */
QERGB(0xaf, 0x00, 0x5f), /* 125: DeepPink4 */
QERGB(0xaf, 0x00, 0x87), /* 126: MediumVioletRed */
QERGB(0xaf, 0x00, 0xaf), /* 127: Magenta3 */
QERGB(0xaf, 0x00, 0xd7), /* 128: DarkViolet */
QERGB(0xaf, 0x00, 0xff), /* 129: Purple */
QERGB(0xaf, 0x5f, 0x00), /* 130: DarkOrange3 */
QERGB(0xaf, 0x5f, 0x5f), /* 131: IndianRed */
QERGB(0xaf, 0x5f, 0x87), /* 132: HotPink3 */
QERGB(0xaf, 0x5f, 0xaf), /* 133: MediumOrchid3 */
QERGB(0xaf, 0x5f, 0xd7), /* 134: MediumOrchid */
QERGB(0xaf, 0x5f, 0xff), /* 135: MediumPurple2 */
QERGB(0xaf, 0x87, 0x00), /* 136: DarkGoldenrod */
QERGB(0xaf, 0x87, 0x5f), /* 137: LightSalmon3 */
QERGB(0xaf, 0x87, 0x87), /* 138: RosyBrown */
QERGB(0xaf, 0x87, 0xaf), /* 139: Grey63 */
QERGB(0xaf, 0x87, 0xd7), /* 140: MediumPurple2 */
QERGB(0xaf, 0x87, 0xff), /* 141: MediumPurple1 */
QERGB(0xaf, 0xaf, 0x00), /* 142: Gold3 */
QERGB(0xaf, 0xaf, 0x5f), /* 143: DarkKhaki */
QERGB(0xaf, 0xaf, 0x87), /* 144: NavajoWhite3 */
QERGB(0xaf, 0xaf, 0xaf), /* 145: Grey69 */
QERGB(0xaf, 0xaf, 0xd7), /* 146: LightSteelBlue3 */
QERGB(0xaf, 0xaf, 0xff), /* 147: LightSteelBlue */
QERGB(0xaf, 0xd7, 0x00), /* 148: Yellow3 */
QERGB(0xaf, 0xd7, 0x5f), /* 149: DarkOliveGreen3 */
QERGB(0xaf, 0xd7, 0x87), /* 150: DarkSeaGreen3 */
QERGB(0xaf, 0xd7, 0xaf), /* 151: DarkSeaGreen2 */
QERGB(0xaf, 0xd7, 0xd7), /* 152: LightCyan3 */
QERGB(0xaf, 0xd7, 0xff), /* 153: LightSkyBlue1 */
QERGB(0xaf, 0xff, 0x00), /* 154: GreenYellow */
QERGB(0xaf, 0xff, 0x5f), /* 155: DarkOliveGreen2 */
QERGB(0xaf, 0xff, 0x87), /* 156: PaleGreen1 */
QERGB(0xaf, 0xff, 0xaf), /* 157: DarkSeaGreen2 */
QERGB(0xaf, 0xff, 0xd7), /* 158: DarkSeaGreen1 */
QERGB(0xaf, 0xff, 0xff), /* 159: PaleTurquoise1 */
QERGB(0xd7, 0x00, 0x00), /* 160: Red3 */
QERGB(0xd7, 0x00, 0x5f), /* 161: DeepPink3 */
QERGB(0xd7, 0x00, 0x87), /* 162: DeepPink3 */
QERGB(0xd7, 0x00, 0xaf), /* 163: Magenta3 */
QERGB(0xd7, 0x00, 0xd7), /* 164: Magenta3 */
QERGB(0xd7, 0x00, 0xff), /* 165: Magenta2 */
QERGB(0xd7, 0x5f, 0x00), /* 166: DarkOrange3 */
QERGB(0xd7, 0x5f, 0x5f), /* 167: IndianRed */
QERGB(0xd7, 0x5f, 0x87), /* 168: HotPink3 */
QERGB(0xd7, 0x5f, 0xaf), /* 169: HotPink2 */
QERGB(0xd7, 0x5f, 0xd7), /* 170: Orchid */
QERGB(0xd7, 0x5f, 0xff), /* 171: MediumOrchid1 */
QERGB(0xd7, 0x87, 0x00), /* 172: Orange3 */
QERGB(0xd7, 0x87, 0x5f), /* 173: LightSalmon3 */
QERGB(0xd7, 0x87, 0x87), /* 174: LightPink3 */
QERGB(0xd7, 0x87, 0xaf), /* 175: Pink3 */
QERGB(0xd7, 0x87, 0xd7), /* 176: Plum3 */
QERGB(0xd7, 0x87, 0xff), /* 177: Violet */
QERGB(0xd7, 0xaf, 0x00), /* 178: Gold3 */
QERGB(0xd7, 0xaf, 0x5f), /* 179: LightGoldenrod3 */
QERGB(0xd7, 0xaf, 0x87), /* 180: Tan */
QERGB(0xd7, 0xaf, 0xaf), /* 181: MistyRose3 */
QERGB(0xd7, 0xaf, 0xd7), /* 182: Thistle3 */
QERGB(0xd7, 0xaf, 0xff), /* 183: Plum2 */
QERGB(0xd7, 0xd7, 0x00), /* 184: Yellow3 */
QERGB(0xd7, 0xd7, 0x5f), /* 185: Khaki3 */
QERGB(0xd7, 0xd7, 0x87), /* 186: LightGoldenrod2 */
QERGB(0xd7, 0xd7, 0xaf), /* 187: LightYellow3 */
QERGB(0xd7, 0xd7, 0xd7), /* 188: Grey84 */
QERGB(0xd7, 0xd7, 0xff), /* 189: LightSteelBlue1 */
QERGB(0xd7, 0xff, 0x00), /* 190: Yellow2 */
QERGB(0xd7, 0xff, 0x5f), /* 191: DarkOliveGreen1 */
QERGB(0xd7, 0xff, 0x87), /* 192: DarkOliveGreen1 */
QERGB(0xd7, 0xff, 0xaf), /* 193: DarkSeaGreen1 */
QERGB(0xd7, 0xff, 0xd7), /* 194: Honeydew2 */
QERGB(0xd7, 0xff, 0xff), /* 195: LightCyan1 */
QERGB(0xff, 0x00, 0x00), /* 196: Red1 */
QERGB(0xff, 0x00, 0x5f), /* 197: DeepPink2 */
QERGB(0xff, 0x00, 0x87), /* 198: DeepPink1 */
QERGB(0xff, 0x00, 0xaf), /* 199: DeepPink1 */
QERGB(0xff, 0x00, 0xd7), /* 200: Magenta2 */
QERGB(0xff, 0x00, 0xff), /* 201: Magenta1 */
QERGB(0xff, 0x5f, 0x00), /* 202: OrangeRed1 */
QERGB(0xff, 0x5f, 0x5f), /* 203: IndianRed1 */
QERGB(0xff, 0x5f, 0x87), /* 204: IndianRed1 */
QERGB(0xff, 0x5f, 0xaf), /* 205: HotPink */
QERGB(0xff, 0x5f, 0xd7), /* 206: HotPink */
QERGB(0xff, 0x5f, 0xff), /* 207: MediumOrchid1 */
QERGB(0xff, 0x87, 0x00), /* 208: DarkOrange */
QERGB(0xff, 0x87, 0x5f), /* 209: Salmon1 */
QERGB(0xff, 0x87, 0x87), /* 210: LightCoral */
QERGB(0xff, 0x87, 0xaf), /* 211: PaleVioletRed1 */
QERGB(0xff, 0x87, 0xd7), /* 212: Orchid2 */
QERGB(0xff, 0x87, 0xff), /* 213: Orchid1 */
QERGB(0xff, 0xaf, 0x00), /* 214: Orange1 */
QERGB(0xff, 0xaf, 0x5f), /* 215: SandyBrown */
QERGB(0xff, 0xaf, 0x87), /* 216: LightSalmon1 */
QERGB(0xff, 0xaf, 0xaf), /* 217: LightPink1 */
QERGB(0xff, 0xaf, 0xd7), /* 218: Pink1 */
QERGB(0xff, 0xaf, 0xff), /* 219: Plum1 */
QERGB(0xff, 0xd7, 0x00), /* 220: Gold1 */
QERGB(0xff, 0xd7, 0x5f), /* 221: LightGoldenrod2 */
QERGB(0xff, 0xd7, 0x87), /* 222: LightGoldenrod2 */
QERGB(0xff, 0xd7, 0xaf), /* 223: NavajoWhite1 */
QERGB(0xff, 0xd7, 0xd7), /* 224: MistyRose1 */
QERGB(0xff, 0xd7, 0xff), /* 225: Thistle1 */
QERGB(0xff, 0xff, 0x00), /* 226: Yellow1 */
QERGB(0xff, 0xff, 0x5f), /* 227: LightGoldenrod1 */
QERGB(0xff, 0xff, 0x87), /* 228: Khaki1 */
QERGB(0xff, 0xff, 0xaf), /* 229: Wheat1 */
QERGB(0xff, 0xff, 0xd7), /* 230: Cornsilk1 */
QERGB(0xff, 0xff, 0xff), /* 231: Grey100 */
QERGB(0x08, 0x08, 0x08), /* 232: Grey3 */
QERGB(0x12, 0x12, 0x12), /* 233: Grey7 */
QERGB(0x1c, 0x1c, 0x1c), /* 234: Grey11 */
QERGB(0x26, 0x26, 0x26), /* 235: Grey15 */
QERGB(0x30, 0x30, 0x30), /* 236: Grey19 */
QERGB(0x3a, 0x3a, 0x3a), /* 237: Grey23 */
QERGB(0x44, 0x44, 0x44), /* 238: Grey27 */
QERGB(0x4e, 0x4e, 0x4e), /* 239: Grey30 */
QERGB(0x58, 0x58, 0x58), /* 240: Grey35 */
QERGB(0x62, 0x62, 0x62), /* 241: Grey39 */
QERGB(0x6c, 0x6c, 0x6c), /* 242: Grey42 */
QERGB(0x76, 0x76, 0x76), /* 243: Grey46 */
QERGB(0x80, 0x80, 0x80), /* 244: Grey50 */
QERGB(0x8a, 0x8a, 0x8a), /* 245: Grey54 */
QERGB(0x94, 0x94, 0x94), /* 246: Grey58 */
QERGB(0x9e, 0x9e, 0x9e), /* 247: Grey62 */
QERGB(0xa8, 0xa8, 0xa8), /* 248: Grey66 */
QERGB(0xb2, 0xb2, 0xb2), /* 249: Grey70 */
QERGB(0xbc, 0xbc, 0xbc), /* 250: Grey74 */
QERGB(0xc6, 0xc6, 0xc6), /* 251: Grey78 */
QERGB(0xd0, 0xd0, 0xd0), /* 252: Grey82 */
QERGB(0xda, 0xda, 0xda), /* 253: Grey85 */
QERGB(0xe4, 0xe4, 0xe4), /* 254: Grey89 */
QERGB(0xee, 0xee, 0xee), /* 255: Grey93 */
#endif
};
unsigned int const *tty_bg_colors = tty_putty_colors;
int tty_bg_colors_count = 16;
unsigned int const *tty_fg_colors = tty_putty_colors;
int tty_fg_colors_count = 16;
static inline int color_dist(unsigned int c1, unsigned c2)
{
return (abs( (c1 & 0xff) - (c2 & 0xff)) +
2 * abs( ((c1 >> 8) & 0xff) - ((c2 >> 8) & 0xff)) +
abs( ((c1 >> 16) & 0xff) - ((c2 >> 16) & 0xff)));
}
int get_tty_color(QEColor color, unsigned int const *colors, int count)
{
int i, cmin, dmin, d;
dmin = INT_MAX;
cmin = 0;
for (i = 0; i < count; i++) {
d = color_dist(color, colors[i]);
if (d < dmin) {
cmin = i;
dmin = d;
}
}
return cmin;
}
static void tty_term_fill_rectangle(QEditScreen *s,
int x1, int y1, int w, int h, QEColor color)
{
TTYState *ts = s->private;
int x2 = x1 + w;
int y2 = y1 + h;
int x, y;
TTYChar *ptr;
int wrap = s->width - w;
int bgcolor;
ptr = ts->screen + y1 * s->width + x1;
if (color == QECOLOR_XOR) {
for (y = y1; y < y2; y++) {
ts->line_updated[y] = 1;
for (x = x1; x < x2; x++) {
*ptr ^= TTYCHAR(0, 7, 7);
ptr++;
}
ptr += wrap;
}
} else {
bgcolor = get_tty_color(color, tty_bg_colors, tty_bg_colors_count);
for (y = y1; y < y2; y++) {
ts->line_updated[y] = 1;
for (x = x1; x < x2; x++) {
*ptr = TTYCHAR(' ', 7, bgcolor);
ptr++;
}
ptr += wrap;
}
}
}
/* XXX: could alloc font in wrapper */
static QEFont *tty_term_open_font(__unused__ QEditScreen *s,
__unused__ int style, __unused__ int size)
{
QEFont *font;
font = qe_malloc(QEFont);
if (!font)
return NULL;
font->ascent = 0;
font->descent = 1;
font->private = NULL;
return font;
}
static void tty_term_close_font(__unused__ QEditScreen *s, QEFont *font)
{
qe_free(&font);
}
/*
* Modified implementation of wcwidth() from Markus Kuhn. We do not
* handle non spacing and enclosing combining characters and control
* chars.
*/
static unsigned int const tty_term_glyph_ranges[] = {
0x10FF, 1, 0x115f, 2, /* 0: Hangul Jamo */
0x2328, 1, 0x232a, 2, /* 1: wide Angle brackets */
0x2E7F, 1, 0x2efd, 2, /* 2: CJK Radicals */
0x2EFF, 1, 0x303e, 2, /* 3: Kangxi Radicals */
0x303F, 1, 0x4dbf, 2, /* 4: CJK */
0x4DFF, 1, 0xa4cf, 2, /* 5: CJK */
0xABFF, 1, 0xd7a3, 2, /* 6: Hangul Syllables */
0xF8FF, 1, 0xfaff, 2, /* 7: CJK Compatibility Ideographs */
0xFDFF, 1, 0xFE1F, 2, /* 8: */
0xFE2F, 1, 0xfe6f, 2, /* 9: CJK Compatibility Forms */
0xFEFF, 1, 0xff5f, 2, /* 10: Fullwidth Forms */
0xFFDF, 1, 0xffe6, 2, /* 11: */
0x1FFFF, 1, 0x3fffd, 2, /* 12: CJK Compatibility */
UINT_MAX, 1, /* 13: catchall */
};
static unsigned int const tty_term_glyph_index[16] = {
4 * 0, /* 0000-0FFF */
4 * 0, /* 1000-1FFF */
4 * 1, /* 2000-2FFF */
4 * 3, /* 3000-3FFF */
4 * 4, /* 4000-4FFF */
4 * 5, /* 5000-5FFF */
4 * 5, /* 6000-6FFF */
4 * 5, /* 7000-7FFF */
4 * 5, /* 8000-8FFF */
4 * 5, /* 9000-9FFF */
4 * 5, /* A000-AFFF */
4 * 6, /* B000-BFFF */
4 * 6, /* C000-CFFF */
4 * 6, /* D000-DFFF */
4 * 7, /* E000-EFFF */
4 * 7, /* F000-FFFF */
};
static int tty_term_glyph_width(__unused__ QEditScreen *s, unsigned int ucs)
{
unsigned int const *ip;
/* fast test for majority of non-wide scripts */
if (ucs < 0x1100)
return 1;
/* Iterative lookup with fast initial jump, no boundary test needed */
ip = tty_term_glyph_ranges +
tty_term_glyph_index[(ucs >> 12) & 0xF] - 2;
for (;;) {
ip += 2;
if (ucs <= ip[0])
return ip[1];
}
}
static void tty_term_text_metrics(QEditScreen *s, __unused__ QEFont *font,
QECharMetrics *metrics,
const unsigned int *str, int len)
{
int i, x;
metrics->font_ascent = font->ascent;
metrics->font_descent = font->descent;
x = 0;
for (i = 0; i < len; i++)
x += tty_term_glyph_width(s, str[i]);
metrics->width = x;
}
static void tty_term_draw_text(QEditScreen *s, __unused__ QEFont *font,
int x, int y, const unsigned int *str, int len,
QEColor color)
{
TTYState *ts = s->private;
TTYChar *ptr;
int fgcolor, w, n;
unsigned int cc;
if (y < s->clip_y1 || y >= s->clip_y2 || x >= s->clip_x2)
return;
ts->line_updated[y] = 1;
fgcolor = get_tty_color(color, tty_fg_colors, tty_fg_colors_count);
ptr = ts->screen + y * s->width;
if (x < s->clip_x1) {
ptr += s->clip_x1;
/* left clip */
while (len > 0) {
cc = *str++;
len--;
w = tty_term_glyph_width(s, cc);
x += w;
if (x >= s->clip_x1) {
/* now we are on the screen. need to put spaces for
wide chars */
n = x;
if (s->clip_x2 < n)
n = s->clip_x2;
n -= s->clip_x1;
for (; n > 0; n--) {
*ptr = TTYCHAR(' ', fgcolor, TTYCHAR_GETBG(*ptr));
ptr++;
}
break;
}
}
} else {
ptr += x;
}
for (; len > 0; len--) {
cc = *str++;
w = tty_term_glyph_width(s, cc);