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quakeforge/libs/console/server.c
Bill Currie ef81af9245 the "two birds with one stone" commit 
1) when /not/ building static plugins, the plugin info name is, once again,
   PluginInfo, but is still type_name_PluginInfo for static plugins. This
   allows plugins to be symlinked (highly desirable for the debian packages,
   and likely others). This also requires plugins to /not/ be loaded with
   RTLD_GLOBAL.
2) because of 1, snd_alsa_0_9 has to explicitly load libasound itself. This
   just happens to fix my segfault on shutdown in RedHat 6.2.
2002-04-19 20:08:54 +00:00

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/*
sv_console.c
ncurses console for the server
Copyright (C) 2001 Bill Currie <bill@taniwha.org>
Author: Bill Currie <bill@taniwha.org>
Date: 2001/7/10
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:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
*/
static const char rcsid[] =
"$Id$";
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#ifdef HAVE_CURSES_H
# include <curses.h>
#endif
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
#endif
#ifdef HAVE_TERMIOS_H
# include <termios.h>
#endif
#include <signal.h>
#include <stdlib.h>
#include "QF/cmd.h"
#include "QF/console.h"
#include "QF/cvar.h"
#include "QF/dstring.h"
#include "QF/keys.h"
#include "QF/plugin.h"
#include "QF/qtypes.h"
#include "QF/sys.h"
#include "compat.h"
#ifdef HAVE_CURSES_H
static int use_curses = 1;
static WINDOW *output;
static WINDOW *status;
static WINDOW *input;
static int screen_x, screen_y;
static int interrupted;
#define MAXCMDLINE 256
static inputline_t *input_line;
#define BUFFER_SIZE 32768
#define MAX_LINES 1024
static con_buffer_t *output_buffer;
static chtype attr_table[4] = {
A_NORMAL,
COLOR_PAIR(1),
COLOR_PAIR(2),
COLOR_PAIR(3),
};
static const byte attr_map[256] = {
3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 0, 3, 3, 0, 3, 3,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 0, 3, 3, 0, 3, 3,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
};
static void
C_ExecLine (const char *line)
{
if (line[0] == '/')
line++;
Cbuf_AddText (line);
}
static inline void
draw_fun_char (WINDOW *win, byte c)
{
chtype ch = c;
ch = sys_char_map[ch] | attr_table[attr_map[ch]];
waddch (win, ch);
}
static void
C_DrawOutput (void)
{
// this is not the most efficient way to update the screen, but oh well
int lines = screen_y - 3; // leave a blank line
int width = screen_x;
int cur_line = output_buffer->cur_line;
int i, y;
if (lines < 1)
return;
for (y = i = 0; y < lines; i++, y++) {
con_line_t *l = Con_BufferLine (output_buffer, cur_line - i);
if (!l->text) {
i--;
break;
}
y += l->len / width; // really dumb line wrap algo :)
}
cur_line -= i;
y -= lines;
wclear (output);
wmove (output, 0, 0);
do {
con_line_t *l = Con_BufferLine (output_buffer, cur_line++);
byte *text = l->text;
int len = l->len;
if (y > 0) {
text += y * width;
len -= y * width;
y = 0;
if (len < 1) {
len = 1;
text = l->text + l->len - 1;
}
}
while (len--)
draw_fun_char (output, *text++);
} while (cur_line < output_buffer->cur_line);
//wrefresh (stdscr);
wrefresh (output);
}
static void
C_DrawStatus (void)
{
wbkgdset (status, COLOR_PAIR(4));
wclear (status);
wrefresh (status);
}
static void
C_DrawInput (inputline_t *il)
{
WINDOW *win = (WINDOW *) il->user_data;
int i;
const char *text;
text = il->lines[il->edit_line] + il->scroll;
wmove (win, 0, 0);
if (il->scroll) {
waddch (win, '<' | COLOR_PAIR (5));
text++;
} else {
waddch (win, *text++);
}
for (i = 0; i < il->width - 2 && *text; i++) {
chtype ch = (byte)*text++;
ch = sys_char_map[ch] | attr_table[attr_map[ch]];
waddch (win, ch);
}
while (i++ < il->width - 2) {
waddch (win, ' ');
}
if (*text) {
waddch (win, '>' | COLOR_PAIR (5));
} else {
waddch (win, ' ');
}
wmove (win, 0, il->linepos - il->scroll);
wrefresh (win);
}
static void
sigwinch (int sig)
{
interrupted = 1;
signal (SIGWINCH, sigwinch);
}
#endif
static void
C_Init (void)
{
#ifdef HAVE_CURSES_H
cvar_t *curses = Cvar_Get ("sv_use_curses", "1", CVAR_ROM, NULL,
"set to 0 to disable curses server console");
use_curses = curses->int_val;
if (use_curses) {
signal (SIGWINCH, sigwinch);
initscr ();
start_color ();
cbreak ();
noecho ();
nonl ();
intrflush (stdscr, FALSE);
getmaxyx (stdscr, screen_y, screen_x);
output = newwin (screen_y - 2, screen_x, 0, 0);
status = newwin (1, screen_x, screen_y - 2, 0);
input = newwin (1, screen_x, screen_y - 1, 0);
init_pair (1, COLOR_YELLOW, COLOR_BLACK);
init_pair (2, COLOR_GREEN, COLOR_BLACK);
init_pair (3, COLOR_RED, COLOR_BLACK);
init_pair (4, COLOR_YELLOW, COLOR_BLUE);
init_pair (5, COLOR_CYAN, COLOR_BLACK);
scrollok (output, TRUE);
leaveok (output, TRUE);
scrollok (status, FALSE);
leaveok (status, TRUE);
scrollok (input, FALSE);
leaveok (input, FALSE);
nodelay (input, TRUE);
keypad (input, TRUE);
wclear (output);
wbkgdset (status, COLOR_PAIR(4));
wclear (status);
wclear (input);
touchwin (stdscr);
wrefresh (output);
wrefresh (status);
wrefresh (input);
output_buffer = Con_CreateBuffer (BUFFER_SIZE, MAX_LINES);
input_line = Con_CreateInputLine (16, MAXCMDLINE, ']');
input_line->complete = Con_BasicCompleteCommandLine;
input_line->enter = C_ExecLine;
input_line->width = screen_x;
input_line->user_data = input;
input_line->draw = C_DrawInput;
con_linewidth = screen_x;
C_DrawOutput ();
C_DrawStatus ();
C_DrawInput (input_line);
} else
#endif
setvbuf (stdout, 0, _IOLBF, BUFSIZ);
}
static void
C_Shutdown (void)
{
#ifdef HAVE_CURSES_H
if (use_curses)
endwin ();
#endif
}
static void
C_Print (const char *fmt, va_list args)
{
static dstring_t *buffer;
unsigned char *txt;
if (!buffer)
buffer = dstring_new ();
dvsprintf (buffer, fmt, args);
txt = buffer->str;
#ifdef HAVE_CURSES_H
if (use_curses) {
Con_BufferAddText (output_buffer, buffer->str);
while (*txt)
draw_fun_char (output, *txt++);
wrefresh (output);
wrefresh (input); // move the screen cursor back to the input line
} else
#endif
{
while (*txt)
putc (sys_char_map[*txt++], stdout);
fflush (stdout);
}
}
static void
C_ProcessInput (void)
{
#ifdef HAVE_CURSES_H
if (use_curses) {
int ch;
if (interrupted) {
struct winsize size;
interrupted = 0;
if (ioctl (fileno (stdout), TIOCGWINSZ, &size) == 0) {
resizeterm (size.ws_row, size.ws_col);
getmaxyx (stdscr, screen_y, screen_x);
con_linewidth = screen_x;
input_line->width = screen_x;
/* while a little ugly, this is needed because ncurses auto
* resizing doesn't always do the right thing
*/
wresize (input, 1, screen_x);
mvwin (input, screen_y - 1, 0);
wresize (status, 1, screen_x);
mvwin (status, screen_y - 2, 0);
wresize (output, screen_y - 2, screen_x);
mvwin (output, 0, 0);
wrefresh (curscr);
C_DrawOutput ();
C_DrawStatus ();
// input gets drawn below in Con_ProcessInputLine
}
}
ch = wgetch (input);
switch (ch) {
case KEY_ENTER:
case '\n':
case '\r':
ch = QFK_RETURN;
break;
case '\t':
ch = QFK_TAB;
break;
case KEY_BACKSPACE:
case '\b':
ch = QFK_BACKSPACE;
break;
case KEY_DC:
ch = QFK_DELETE;
break;
case KEY_RIGHT:
ch = QFK_RIGHT;
break;
case KEY_LEFT:
ch = QFK_LEFT;
break;
case KEY_UP:
ch = QFK_UP;
break;
case KEY_DOWN:
ch = QFK_DOWN;
break;
case KEY_HOME:
ch = QFK_HOME;
break;
case KEY_END:
ch = QFK_END;
break;
case KEY_NPAGE:
ch = QFK_PAGEDOWN;
break;
case KEY_PPAGE:
ch = QFK_PAGEUP;
break;
default:
if (ch < 0 || ch >= 256)
ch = 0;
}
Con_ProcessInputLine (input_line, ch);
} else
#endif
while (1) {
const char *cmd = Sys_ConsoleInput ();
if (!cmd)
break;
Cbuf_AddText (cmd);
}
}
void
C_KeyEvent (knum_t key, short unicode, qboolean down)
{
}
void
C_DrawConsole (int lines)
{
}
void
C_CheckResize (void)
{
}
void
C_NewMap (void)
{
}
static general_funcs_t plugin_info_general_funcs = {
C_Init,
C_Shutdown,
};
static general_data_t plugin_info_general_data;
static console_funcs_t plugin_info_console_funcs = {
C_Print,
C_ProcessInput,
C_KeyEvent,
C_DrawConsole,
C_CheckResize,
C_NewMap,
};
static console_data_t plugin_info_console_data;
static plugin_funcs_t plugin_info_funcs = {
&plugin_info_general_funcs,
0,
0,
&plugin_info_console_funcs,
};
static plugin_data_t plugin_info_data = {
&plugin_info_general_data,
0,
0,
&plugin_info_console_data,
};
static plugin_t plugin_info = {
qfp_console,
0,
QFPLUGIN_VERSION,
"0.1",
"server console driver",
"Copyright (C) 1996-1997 id Software, Inc.\n"
"Copyright (C) 1999,2000,2001 contributors of the QuakeForge"
" project\n"
"Please see the file \"AUTHORS\" for a list of contributors",
&plugin_info_funcs,
&plugin_info_data,
};
QFPLUGIN plugin_t *
PLUGIN_INFO(console, server) (void)
{
return &plugin_info;
}
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