quakeforge/ruamoko/qwaq/qwaq-curses.c

/*
	qwaq-curses.c

	Ruamoko ncurses wrapper using threading

	Copyright (C) 2020 Bill Currie <bill@taniwha.org>

	Author: Bill Currie <bill@taniwha.org>
	Date: 2020/03/01

	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

*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#include <sys/time.h>

#include <curses.h>
#include <errno.h>
#include <panel.h>
#include <pthread.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include "QF/dstring.h"
#include "QF/progs.h"
#include "QF/ringbuffer.h"
#include "QF/sys.h"

#include "qwaq.h"
#include "qwaq-curses.h"
#include "qwaq-rect.h"
#include "qwaq-textcontext.h"

#define always_inline inline __attribute__((__always_inline__))
#define CMD_SIZE(x) sizeof(x)/sizeof(x[0])

typedef enum qwaq_commands_e {
	qwaq_cmd_newwin,
	qwaq_cmd_delwin,
	qwaq_cmd_getwrect,
	qwaq_cmd_new_panel,
	qwaq_cmd_del_panel,
	qwaq_cmd_hide_panel,
	qwaq_cmd_show_panel,
	qwaq_cmd_top_panel,
	qwaq_cmd_bottom_panel,
	qwaq_cmd_move_panel,
	qwaq_cmd_panel_window,
	qwaq_cmd_replace_panel,
	qwaq_cmd_update_panels,
	qwaq_cmd_doupdate,
	qwaq_cmd_mvwaddstr,
	qwaq_cmd_waddstr,
	qwaq_cmd_mvwaddch,
	qwaq_cmd_waddch,
	qwaq_cmd_wrefresh,
	qwaq_cmd_init_pair,
	qwaq_cmd_wbkgd,
	qwaq_cmd_werase,
	qwaq_cmd_scrollok,
	qwaq_cmd_move,
	qwaq_cmd_curs_set,
	qwaq_cmd_wborder,
	qwaq_cmd_mvwblit_line,
	qwaq_cmd_wresize,
	qwaq_cmd_resizeterm,
} qwaq_commands;

static const char *qwaq_command_names[]= {
	"newwin",
	"delwin",
	"getwrect",
	"new_panel",
	"del_panel",
	"hide_panel",
	"show_panel",
	"top_panel",
	"bottom_panel",
	"move_panel",
	"panel_window",
	"replace_panel",
	"update_panels",
	"doupdate",
	"mvwaddstr",
	"waddstr",
	"mvwaddch",
	"waddch",
	"wrefresh",
	"init_pair",
	"wbkgd",
	"werase",
	"scrollok",
	"move",
	"curs_set",
	"wborder",
	"mvwblit_line",
	"wresize",
	"resizeterm",
};

static window_t *
window_new (qwaq_resources_t *res)
{
	PR_RESNEW (window_t, res->window_map);
}

static void
window_free (qwaq_resources_t *res, window_t *win)
{
	PR_RESFREE (window_t, res->window_map, win);
}

static void
window_reset (qwaq_resources_t *res)
{
	PR_RESRESET (window_t, res->window_map);
}

static inline window_t *
window_get (qwaq_resources_t *res, unsigned index)
{
	PR_RESGET(res->window_map, index);
}

static inline int
window_index (qwaq_resources_t *res, window_t *win)
{
	PR_RESINDEX (res->window_map, win);
}

static always_inline window_t * __attribute__((pure))
get_window (qwaq_resources_t *res, const char *name, int handle)
{
	if (handle == 1) {
		return &res->stdscr;
	}

	window_t   *window = window_get (res, handle);

	if (!window || !window->win) {
		PR_RunError (res->pr, "invalid window passed to %s", name + 5);
	}
	return window;
}

static panel_t *
panel_new (qwaq_resources_t *res)
{
	PR_RESNEW (panel_t, res->panel_map);
}

static void
panel_free (qwaq_resources_t *res, panel_t *win)
{
	PR_RESFREE (panel_t, res->panel_map, win);
}

static void
panel_reset (qwaq_resources_t *res)
{
	PR_RESRESET (panel_t, res->panel_map);
}

static inline panel_t *
panel_get (qwaq_resources_t *res, unsigned index)
{
	PR_RESGET(res->panel_map, index);
}

static inline int
panel_index (qwaq_resources_t *res, panel_t *win)
{
	PR_RESINDEX (res->panel_map, win);
}

static always_inline panel_t * __attribute__((pure))
get_panel (qwaq_resources_t *res, const char *name, int handle)
{
	panel_t   *panel = panel_get (res, handle);

	if (!panel || !panel->panel) {
		PR_RunError (res->pr, "invalid panel passed to %s", name + 3);
	}
	return panel;
}

static int
acquire_string (qwaq_resources_t *res)
{
	int         string_id = -1;

	pthread_mutex_lock (&res->string_id_cond.mut);
	while (RB_DATA_AVAILABLE (res->string_ids) < 1) {
		pthread_cond_wait (&res->string_id_cond.rcond,
						   &res->string_id_cond.mut);
	}
	RB_READ_DATA (res->string_ids, &string_id, 1);
	pthread_cond_broadcast (&res->string_id_cond.wcond);
	pthread_mutex_unlock (&res->string_id_cond.mut);
	return string_id;
}

static void
release_string (qwaq_resources_t *res, int string_id)
{
	pthread_mutex_lock (&res->string_id_cond.mut);
	while (RB_SPACE_AVAILABLE (res->string_ids) < 1) {
		pthread_cond_wait (&res->string_id_cond.wcond,
						   &res->string_id_cond.mut);
	}
	RB_WRITE_DATA (res->string_ids, &string_id, 1);
	pthread_cond_broadcast (&res->string_id_cond.rcond);
	pthread_mutex_unlock (&res->string_id_cond.mut);
}

static void
qwaq_submit_command (qwaq_resources_t *res, const int *cmd)
{
	unsigned    len = cmd[1];

	pthread_mutex_lock (&res->command_cond.mut);
	while (RB_SPACE_AVAILABLE (res->command_queue) < len) {
		pthread_cond_wait (&res->command_cond.wcond,
						   &res->command_cond.mut);
	}
	RB_WRITE_DATA (res->command_queue, cmd, len);
	pthread_cond_broadcast (&res->command_cond.rcond);
	pthread_mutex_unlock (&res->command_cond.mut);
}

static void
qwaq_submit_result (qwaq_resources_t *res, const int *result, unsigned len)
{
	pthread_mutex_lock (&res->results_cond.mut);
	while (RB_SPACE_AVAILABLE (res->results) < len) {
		pthread_cond_wait (&res->results_cond.wcond,
						   &res->results_cond.mut);
	}
	RB_WRITE_DATA (res->results, result, len);
	pthread_cond_broadcast (&res->results_cond.rcond);
	pthread_mutex_unlock (&res->results_cond.mut);
}

static void
qwaq_wait_result (qwaq_resources_t *res, int *result, int cmd, unsigned len)
{
	pthread_mutex_lock (&res->results_cond.mut);
	while (RB_DATA_AVAILABLE (res->results) < len
		   || RB_PEEK_DATA (res->results, 0) != cmd) {
		pthread_cond_wait (&res->results_cond.rcond,
						   &res->results_cond.mut);
	}
	RB_READ_DATA (res->results, result, len);
	pthread_cond_broadcast (&res->results_cond.wcond);
	pthread_mutex_unlock (&res->results_cond.mut);
}

static void
cmd_newwin (qwaq_resources_t *res)
{
	int         xpos = RB_PEEK_DATA (res->command_queue, 2);
	int         ypos = RB_PEEK_DATA (res->command_queue, 3);
	int         xlen = RB_PEEK_DATA (res->command_queue, 4);
	int         ylen = RB_PEEK_DATA (res->command_queue, 5);

	window_t   *window = window_new (res);
	window->win = newwin (ylen, xlen, ypos, xpos);
	keypad (window->win, FALSE);	// do it ourselves

	int         window_id = window_index (res, window);
	int         cmd_result[] = { qwaq_cmd_newwin, window_id };
	qwaq_submit_result (res, cmd_result, CMD_SIZE (cmd_result));
}

static void
cmd_delwin (qwaq_resources_t *res)
{
	int         window_id = RB_PEEK_DATA (res->command_queue, 2);

	window_t   *window = get_window (res, __FUNCTION__, window_id);
	delwin (window->win);
	window_free (res, window);
}

static void
cmd_getwrect (qwaq_resources_t *res)
{
	int         window_id = RB_PEEK_DATA (res->command_queue, 2);
	int         xpos, ypos;
	int         xlen, ylen;

	window_t   *window = get_window (res, __FUNCTION__, window_id);
	getparyx (window->win, ypos, xpos);
	if (xpos == -1 && ypos ==-1) {
		getbegyx (window->win, ypos, xpos);
	}
	getmaxyx (window->win, ylen, xlen);

	int         cmd_result[] = { qwaq_cmd_getwrect, xpos, ypos, xlen, ylen };
	qwaq_submit_result (res, cmd_result, CMD_SIZE (cmd_result));
}

static void
cmd_new_panel (qwaq_resources_t *res)
{
	int         window_id = RB_PEEK_DATA (res->command_queue, 2);

	window_t   *window = get_window (res, __FUNCTION__, window_id);
	panel_t    *panel = panel_new (res);
	panel->panel = new_panel (window->win);
	panel->window_id = window_id;

	int         panel_id = panel_index (res, panel);
	int         cmd_result[] = { qwaq_cmd_new_panel, panel_id };
	qwaq_submit_result (res, cmd_result, CMD_SIZE (cmd_result));
}

static void
cmd_del_panel (qwaq_resources_t *res)
{
	int         panel_id = RB_PEEK_DATA (res->command_queue, 2);

	panel_t   *panel = get_panel (res, __FUNCTION__, panel_id);
	del_panel (panel->panel);
	panel_free (res, panel);
}

static void
cmd_hide_panel (qwaq_resources_t *res)
{
	int         panel_id = RB_PEEK_DATA (res->command_queue, 2);

	panel_t   *panel = get_panel (res, __FUNCTION__, panel_id);
	hide_panel (panel->panel);
}

static void
cmd_show_panel (qwaq_resources_t *res)
{
	int         panel_id = RB_PEEK_DATA (res->command_queue, 2);

	panel_t   *panel = get_panel (res, __FUNCTION__, panel_id);
	show_panel (panel->panel);
}

static void
cmd_top_panel (qwaq_resources_t *res)
{
	int         panel_id = RB_PEEK_DATA (res->command_queue, 2);

	panel_t   *panel = get_panel (res, __FUNCTION__, panel_id);
	top_panel (panel->panel);
}

static void
cmd_bottom_panel (qwaq_resources_t *res)
{
	int         panel_id = RB_PEEK_DATA (res->command_queue, 2);

	panel_t   *panel = get_panel (res, __FUNCTION__, panel_id);
	bottom_panel (panel->panel);
}

static void
cmd_move_panel (qwaq_resources_t *res)
{
	int         panel_id = RB_PEEK_DATA (res->command_queue, 2);
	int         x = RB_PEEK_DATA (res->command_queue, 3);
	int         y = RB_PEEK_DATA (res->command_queue, 4);

	panel_t   *panel = get_panel (res, __FUNCTION__, panel_id);
	move_panel (panel->panel, y, x);
}

static void
cmd_panel_window (qwaq_resources_t *res)
{
	int         panel_id = RB_PEEK_DATA (res->command_queue, 2);

	panel_t   *panel = get_panel (res, __FUNCTION__, panel_id);

	int         window_id = panel->window_id;
	int         cmd_result[] = { qwaq_cmd_panel_window, window_id, };
	qwaq_submit_result (res, cmd_result, CMD_SIZE (cmd_result));
}

static void
cmd_replace_panel (qwaq_resources_t *res)
{
	int         panel_id = RB_PEEK_DATA (res->command_queue, 2);
	int         window_id = RB_PEEK_DATA (res->command_queue, 3);

	panel_t   *panel = get_panel (res, __FUNCTION__, panel_id);
	window_t  *window = get_window (res, __FUNCTION__, window_id);

	replace_panel (panel->panel, window->win);
}

static void
cmd_update_panels (qwaq_resources_t *res)
{
	update_panels ();
}

static void
cmd_doupdate (qwaq_resources_t *res)
{
	doupdate ();
}

static void
cmd_mvwaddstr (qwaq_resources_t *res)
{
	int         window_id = RB_PEEK_DATA (res->command_queue, 2);
	int         x = RB_PEEK_DATA (res->command_queue, 3);
	int         y = RB_PEEK_DATA (res->command_queue, 4);
	int         string_id = RB_PEEK_DATA (res->command_queue, 5);

	window_t   *window = get_window (res, __FUNCTION__, window_id);
	mvwaddstr (window->win, y, x, res->strings[string_id].str);
	release_string (res, string_id);
}

static void
cmd_waddstr (qwaq_resources_t *res)
{
	int         window_id = RB_PEEK_DATA (res->command_queue, 2);
	int         string_id = RB_PEEK_DATA (res->command_queue, 3);

	window_t   *window = get_window (res, __FUNCTION__, window_id);
	waddstr (window->win, res->strings[string_id].str);
	release_string (res, string_id);
}

static void
cmd_mvwaddch (qwaq_resources_t *res)
{
	int         window_id = RB_PEEK_DATA (res->command_queue, 2);
	int         x = RB_PEEK_DATA (res->command_queue, 3);
	int         y = RB_PEEK_DATA (res->command_queue, 4);
	int         ch = RB_PEEK_DATA (res->command_queue, 5);

	window_t   *window = get_window (res, __FUNCTION__, window_id);
	mvwaddch (window->win, y, x, ch);
}

static void
cmd_waddch (qwaq_resources_t *res)
{
	int         window_id = RB_PEEK_DATA (res->command_queue, 2);
	int         ch = RB_PEEK_DATA (res->command_queue, 3);

	window_t   *window = get_window (res, __FUNCTION__, window_id);
	waddch (window->win, ch);
}

static void
cmd_wrefresh (qwaq_resources_t *res)
{
	int         window_id = RB_PEEK_DATA (res->command_queue, 2);

	window_t   *window = get_window (res, __FUNCTION__, window_id);
	wrefresh (window->win);
}

static void
cmd_init_pair (qwaq_resources_t *res)
{
	int         pair = RB_PEEK_DATA (res->command_queue, 2);
	int         f = RB_PEEK_DATA (res->command_queue, 3);
	int         b = RB_PEEK_DATA (res->command_queue, 4);

	init_pair (pair, f, b);
}

static void
cmd_wbkgd (qwaq_resources_t *res)
{
	int         window_id = RB_PEEK_DATA (res->command_queue, 2);
	int         ch = RB_PEEK_DATA (res->command_queue, 3);

	window_t   *window = get_window (res, __FUNCTION__, window_id);
	wbkgd (window->win, ch);
}

static void
cmd_werase (qwaq_resources_t *res)
{
	int         window_id = RB_PEEK_DATA (res->command_queue, 2);

	window_t   *window = get_window (res, __FUNCTION__, window_id);
	werase (window->win);
}

static void
cmd_scrollok (qwaq_resources_t *res)
{
	int         window_id = RB_PEEK_DATA (res->command_queue, 2);
	int         flag = RB_PEEK_DATA (res->command_queue, 3);

	window_t   *window = get_window (res, __FUNCTION__, window_id);
	scrollok (window->win, flag);
}

static void
cmd_move (qwaq_resources_t *res)
{
	int         x = RB_PEEK_DATA (res->command_queue, 2);
	int         y = RB_PEEK_DATA (res->command_queue, 3);

	move (y, x);
}

static void
cmd_curs_set (qwaq_resources_t *res)
{
	int         visibility = RB_PEEK_DATA (res->command_queue, 2);

	curs_set (visibility);
}

static void
cmd_wborder (qwaq_resources_t *res)
{
	int         window_id = RB_PEEK_DATA (res->command_queue, 2);
	int         ls = RB_PEEK_DATA (res->command_queue, 3);
	int         rs = RB_PEEK_DATA (res->command_queue, 4);
	int         ts = RB_PEEK_DATA (res->command_queue, 5);
	int         bs = RB_PEEK_DATA (res->command_queue, 6);
	int         tl = RB_PEEK_DATA (res->command_queue, 7);
	int         tr = RB_PEEK_DATA (res->command_queue, 8);
	int         bl = RB_PEEK_DATA (res->command_queue, 9);
	int         br = RB_PEEK_DATA (res->command_queue, 10);

	window_t   *window = get_window (res, __FUNCTION__, window_id);
	wborder (window->win, ls, rs, ts, bs, tl, tr, bl, br);
}

static void
cmd_mvwblit_line (qwaq_resources_t *res)
{
	int         window_id = RB_PEEK_DATA (res->command_queue, 2);
	int         x = RB_PEEK_DATA (res->command_queue, 3);
	int         y = RB_PEEK_DATA (res->command_queue, 4);
	int         chs_id = RB_PEEK_DATA (res->command_queue, 5);
	int         len = RB_PEEK_DATA (res->command_queue, 6);
	int        *chs = (int *) res->strings[chs_id].str;
	int         save_x;
	int         save_y;

	window_t   *window = get_window (res, __FUNCTION__, window_id);
	getyx (window->win, save_y, save_x);
	for (int i = 0; i < len; i++) {
		if (chs[i] & 0xff) {
			mvwaddch (window->win, y, x + i, chs[i]);
		}
	}
	wmove (window->win, save_y, save_x);
	release_string (res, chs_id);
}

static void
cmd_wresize (qwaq_resources_t *res)
{
	int         window_id = RB_PEEK_DATA (res->command_queue, 2);
	int         width = RB_PEEK_DATA (res->command_queue, 3);
	int         height = RB_PEEK_DATA (res->command_queue, 4);

	window_t   *window = get_window (res, __FUNCTION__, window_id);
	wresize (window->win, height, width);
}

static void
cmd_resizeterm (qwaq_resources_t *res)
{
	int         width = RB_PEEK_DATA (res->command_queue, 2);
	int         height = RB_PEEK_DATA (res->command_queue, 3);

	resizeterm (height, width);
}

static void
dump_command (qwaq_resources_t *res, int len)
{
	if (0) {
		qwaq_commands cmd = RB_PEEK_DATA (res->command_queue, 0);
		Sys_Printf ("%s[%d]", qwaq_command_names[cmd], len);
		for (int i = 2; i < len; i++) {
			Sys_Printf (" %d", RB_PEEK_DATA (res->command_queue, i));
		}
		Sys_Printf ("\n");
	}
}

void
qwaq_init_timeout (struct timespec *timeout, long time)
{
	#define SEC 1000000000L
	struct timeval now;
	gettimeofday(&now, 0);
	timeout->tv_sec = now.tv_sec;
	timeout->tv_nsec = now.tv_usec * 1000L + time;
	if (timeout->tv_nsec >= SEC) {
		timeout->tv_sec += timeout->tv_nsec / SEC;
		timeout->tv_nsec %= SEC;
	}
}

static void
process_commands (qwaq_resources_t *res)
{
	struct timespec timeout;
	int         avail;
	int         len;
	int         ret = 0;

	pthread_mutex_lock (&res->command_cond.mut);
	qwaq_init_timeout (&timeout, 20 * 1000000);
	while (RB_DATA_AVAILABLE (res->command_queue) < 2 && ret == 0) {
		ret = pthread_cond_timedwait (&res->command_cond.rcond,
									  &res->command_cond.mut, &timeout);
	}
	pthread_mutex_unlock (&res->command_cond.mut);

	while ((avail = RB_DATA_AVAILABLE (res->command_queue)) >= 2
		   && avail >= (len = RB_PEEK_DATA (res->command_queue, 1))) {
		dump_command (res, len);
		qwaq_commands cmd = RB_PEEK_DATA (res->command_queue, 0);
		switch (cmd) {
			case qwaq_cmd_newwin:
				cmd_newwin (res);
				break;
			case qwaq_cmd_delwin:
				cmd_delwin (res);
				break;
			case qwaq_cmd_getwrect:
				cmd_getwrect (res);
				break;
			case qwaq_cmd_new_panel:
				cmd_new_panel (res);
				break;
			case qwaq_cmd_del_panel:
				cmd_del_panel (res);
				break;
			case qwaq_cmd_hide_panel:
				cmd_hide_panel (res);
				break;
			case qwaq_cmd_show_panel:
				cmd_show_panel (res);
				break;
			case qwaq_cmd_top_panel:
				cmd_top_panel (res);
				break;
			case qwaq_cmd_bottom_panel:
				cmd_bottom_panel (res);
				break;
			case qwaq_cmd_move_panel:
				cmd_move_panel (res);
				break;
			case qwaq_cmd_panel_window:
				cmd_panel_window (res);
				break;
			case qwaq_cmd_replace_panel:
				cmd_replace_panel (res);
				break;
			case qwaq_cmd_update_panels:
				cmd_update_panels (res);
				break;
			case qwaq_cmd_doupdate:
				cmd_doupdate (res);
				break;
			case qwaq_cmd_mvwaddstr:
				cmd_mvwaddstr (res);
				break;
			case qwaq_cmd_waddstr:
				cmd_waddstr (res);
				break;
			case qwaq_cmd_mvwaddch:
				cmd_mvwaddch (res);
				break;
			case qwaq_cmd_waddch:
				cmd_waddch (res);
				break;
			case qwaq_cmd_wrefresh:
				cmd_wrefresh (res);
				break;
			case qwaq_cmd_init_pair:
				cmd_init_pair (res);
				break;
			case qwaq_cmd_wbkgd:
				cmd_wbkgd (res);
				break;
			case qwaq_cmd_werase:
				cmd_werase (res);
				break;
			case qwaq_cmd_scrollok:
				cmd_scrollok (res);
				break;
			case qwaq_cmd_move:
				cmd_move (res);
				break;
			case qwaq_cmd_curs_set:
				cmd_curs_set (res);
				break;
			case qwaq_cmd_wborder:
				cmd_wborder (res);
				break;
			case qwaq_cmd_mvwblit_line:
				cmd_mvwblit_line (res);
				break;
			case qwaq_cmd_wresize:
				cmd_wresize (res);
				break;
			case qwaq_cmd_resizeterm:
				cmd_resizeterm (res);
				break;
		}
		pthread_mutex_lock (&res->command_cond.mut);
		RB_DROP_DATA (res->command_queue, len);
		pthread_cond_broadcast (&res->command_cond.wcond);
		pthread_mutex_unlock (&res->command_cond.mut);
	}
}

static int
get_event (qwaq_resources_t *res, qwaq_event_t *event)
{
	struct timespec timeout;
	int         ret = 0;
	int         was_event = 0;

	pthread_mutex_lock (&res->event_cond.mut);
	qwaq_init_timeout (&timeout, 20 * 1000000);
	while (RB_DATA_AVAILABLE (res->event_queue) < 1 && ret == 0) {
		ret = pthread_cond_timedwait (&res->event_cond.rcond,
									  &res->event_cond.mut, &timeout);
	}
	if (event) {
		if (ret == 0) {
			RB_READ_DATA (res->event_queue, event, 1);
			was_event = 1;
		} else if (res->button_state) {
			event->what = qe_mouseauto;
			event->mouse.buttons = res->button_state;
			event->mouse.x = res->mouse_x;
			event->mouse.y = res->mouse_y;
		} else {
			event->what = qe_none;
		}
	}
	pthread_cond_broadcast (&res->event_cond.wcond);
	pthread_mutex_unlock (&res->event_cond.mut);
	return was_event;
}

static int need_endwin;
static void
bi_shutdown (void *_pr)
{
	__auto_type pr = (progs_t *) _pr;
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");

	if (need_endwin) {
		qwaq_input_shutdown (res);
		endwin ();
	}
}

static void
bi_newwin (progs_t *pr)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");
	int         xpos = P_INT (pr, 0);
	int         ypos = P_INT (pr, 1);
	int         xlen = P_INT (pr, 2);
	int         ylen = P_INT (pr, 3);
	int         command[] = {
					qwaq_cmd_newwin, 0,
					xpos, ypos, xlen, ylen,
				};
	command[1] = CMD_SIZE(command);
	qwaq_submit_command (res, command);

	int         cmd_result[2];
	qwaq_wait_result (res, cmd_result, qwaq_cmd_newwin, CMD_SIZE (cmd_result));
	R_INT (pr) = cmd_result[1];
}

static void
bi_delwin (progs_t *pr)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");
	int         window_id = P_INT (pr, 0);

	if (get_window (res, __FUNCTION__, window_id)) {
		int         command[] = { qwaq_cmd_delwin, 0, window_id, };
		command[1] = CMD_SIZE(command);
		qwaq_submit_command (res, command);
	}
}

static void
qwaq_getwrect (progs_t *pr, int window_id)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");

	if (get_window (res, __FUNCTION__, window_id)) {
		int         command[] = { qwaq_cmd_getwrect, 0, window_id, };
		command[1] = CMD_SIZE(command);
		qwaq_submit_command (res, command);

		int         cmd_result[5];
		qwaq_wait_result (res, cmd_result, qwaq_cmd_getwrect,
						  CMD_SIZE (cmd_result));
		// return xpos, ypos, xlen, ylen
		(&R_INT (pr))[0] = cmd_result[1];
		(&R_INT (pr))[1] = cmd_result[2];
		(&R_INT (pr))[2] = cmd_result[3];
		(&R_INT (pr))[3] = cmd_result[4];
	}
}
static void
bi_getwrect (progs_t *pr)
{
	qwaq_getwrect (pr, P_INT (pr, 0));
}

static void
bi_new_panel (progs_t *pr)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");
	int         window_id = P_INT (pr, 0);

	if (get_window (res, __FUNCTION__, window_id)) {
		int         command[] = { qwaq_cmd_new_panel, 0, window_id, };
		command[1] = CMD_SIZE(command);
		qwaq_submit_command (res, command);

		int         cmd_result[2];
		qwaq_wait_result (res, cmd_result, qwaq_cmd_new_panel,
						  CMD_SIZE (cmd_result));
		R_INT (pr) = cmd_result[1];
	}
}

static void
panel_command (progs_t *pr, qwaq_commands cmd)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");
	int         panel_id = P_INT (pr, 0);

	if (get_panel (res, __FUNCTION__, panel_id)) {
		int         command[] = { cmd, 0, panel_id, };
		command[1] = CMD_SIZE(command);
		qwaq_submit_command (res, command);
	}
}

static void
bi_del_panel (progs_t *pr)
{
	panel_command (pr, qwaq_cmd_del_panel);
}

static void
bi_hide_panel (progs_t *pr)
{
	panel_command (pr, qwaq_cmd_hide_panel);
}

static void
bi_show_panel (progs_t *pr)
{
	panel_command (pr, qwaq_cmd_show_panel);
}

static void
bi_top_panel (progs_t *pr)
{
	panel_command (pr, qwaq_cmd_top_panel);
}

static void
bi_bottom_panel (progs_t *pr)
{
	panel_command (pr, qwaq_cmd_bottom_panel);
}

static void
bi_move_panel (progs_t *pr)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");
	int         panel_id = P_INT (pr, 0);
	int         x = P_INT (pr, 1);
	int         y = P_INT (pr, 2);

	if (get_panel (res, __FUNCTION__, panel_id)) {
		int         command[] = { qwaq_cmd_move_panel, 0, panel_id, x, y, };
		command[1] = CMD_SIZE(command);
		qwaq_submit_command (res, command);
	}
}

static void
bi_panel_window (progs_t *pr)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");
	int         panel_id = P_INT (pr, 0);

	if (get_panel (res, __FUNCTION__, panel_id)) {
		int         command[] = { qwaq_cmd_panel_window, 0, panel_id, };
		command[1] = CMD_SIZE(command);
		qwaq_submit_command (res, command);

		int         cmd_result[2];
		qwaq_wait_result (res, cmd_result, qwaq_cmd_panel_window,
						  CMD_SIZE (cmd_result));
		(&R_INT (pr))[0] = cmd_result[1];
	}
}

static void
bi_replace_panel (progs_t *pr)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");
	int         panel_id = P_INT (pr, 0);
	int         window_id = P_INT (pr, 1);

	if (get_panel (res, __FUNCTION__, panel_id)
		&& get_window (res, __FUNCTION__, window_id)) {
		int         command[] = { qwaq_cmd_replace_panel, 0,
								  panel_id, window_id};
		command[1] = CMD_SIZE(command);
		qwaq_submit_command (res, command);
	}
}

static void
qwaq_update_panels (progs_t *pr)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");

	int         command[] = { qwaq_cmd_update_panels, 0, };
	command[1] = CMD_SIZE(command);
	qwaq_submit_command (res, command);
}
static void
bi_update_panels (progs_t *pr)
{
	qwaq_update_panels (pr);
}

static void
qwaq_doupdate (progs_t *pr)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");

	int         command[] = { qwaq_cmd_doupdate, 0, };
	command[1] = CMD_SIZE(command);
	qwaq_submit_command (res, command);
}
static void
bi_doupdate (progs_t *pr)
{
	qwaq_doupdate (pr);
}

static void
qwaq_waddstr (progs_t *pr, int window_id, const char *str)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");

	if (get_window (res, __FUNCTION__, window_id)) {
		int         string_id = acquire_string (res);
		dstring_t  *print_buffer = res->strings + string_id;
		int         command[] = {
						qwaq_cmd_waddstr, 0,
						window_id, string_id
					};

		command[1] = CMD_SIZE(command);

		dstring_copystr (print_buffer, str);
		qwaq_submit_command (res, command);
	}
}
static void
bi_waddstr (progs_t *pr)
{
	int         window_id = P_INT (pr, 0);
	const char *str = P_GSTRING (pr, 1);

	qwaq_waddstr (pr, window_id, str);
}

static void
qwaq_wresize (progs_t *pr, int window_id, int width, int height)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");

	if (get_window (res, __FUNCTION__, window_id)) {
		int         command[] = {
						qwaq_cmd_wresize, 0,
						window_id, width, height
					};

		command[1] = CMD_SIZE(command);
		qwaq_submit_command (res, command);
	}
}
static void
bi_wresize (progs_t *pr)
{
	int         window_id = P_STRUCT (pr, qwaq_textcontext_t, 0).window;
	int         width = P_INT (pr, 1);
	int         height = P_INT (pr, 2);

	qwaq_wresize (pr, window_id, width, height);
}

static void
qwaq_resizeterm (progs_t *pr, int width, int height)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");

	int         command[] = { qwaq_cmd_resizeterm, 0, width, height };

	command[1] = CMD_SIZE(command);
	qwaq_submit_command (res, command);
}
static void
bi_resizeterm (progs_t *pr)
{
	int         width = P_INT (pr, 0);
	int         height = P_INT (pr, 1);

	qwaq_resizeterm (pr, width, height);
}

static void
qwaq_mvwaddstr (progs_t *pr, int window_id, int x, int y, const char *str)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");

	if (get_window (res, __FUNCTION__, window_id)) {
		int         string_id = acquire_string (res);
		dstring_t  *print_buffer = res->strings + string_id;
		int         command[] = {
						qwaq_cmd_mvwaddstr, 0,
						window_id, x, y, string_id
					};

		command[1] = CMD_SIZE(command);

		dstring_copystr (print_buffer, str);
		qwaq_submit_command (res, command);
	}
}
static void
bi_mvwaddstr (progs_t *pr)
{
	int         window_id = P_INT (pr, 0);
	int         x = P_INT (pr, 1);
	int         y = P_INT (pr, 2);
	const char *str = P_GSTRING (pr, 3);

	qwaq_mvwaddstr (pr, window_id, x, y, str);
}

static void
qwaq_mvwprintf (progs_t *pr, int window_id, int x, int y, const char *fmt,
				int count, pr_type_t **args)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");

	if (get_window (res, __FUNCTION__, window_id)) {
		int         string_id = acquire_string (res);
		dstring_t  *print_buffer = res->strings + string_id;
		int         command[] = {
						qwaq_cmd_mvwaddstr, 0,
						window_id, x, y, string_id
					};

		command[1] = CMD_SIZE(command);

		dstring_clearstr (print_buffer);
		PR_Sprintf (pr, print_buffer, "mvwaddstr", fmt, count, args);

		qwaq_submit_command (res, command);
	}
}
static void
bi_mvwprintf (progs_t *pr)
{
	int         window_id = P_INT (pr, 0);
	int         x = P_INT (pr, 1);
	int         y = P_INT (pr, 2);
	const char *fmt = P_GSTRING (pr, 3);
	int         count = pr->pr_argc - 4;
	pr_type_t **args = pr->pr_params + 4;

	qwaq_mvwprintf (pr, window_id, x, y, fmt, count, args);
}

static void
qwaq_wprintf (progs_t *pr, int window_id, const char *fmt,
			  int count, pr_type_t **args)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");

	if (get_window (res, __FUNCTION__, window_id)) {
		int         string_id = acquire_string (res);
		dstring_t  *print_buffer = res->strings + string_id;
		int         command[] = {
						qwaq_cmd_waddstr, 0,
						window_id, string_id
					};

		command[1] = CMD_SIZE(command);

		dstring_clearstr (print_buffer);
		PR_Sprintf (pr, print_buffer, "waddstr", fmt, count, args);

		qwaq_submit_command (res, command);
	}
}
static void
bi_wprintf (progs_t *pr)
{
	int         window_id = P_INT (pr, 0);
	const char *fmt = P_GSTRING (pr, 1);
	int         count = pr->pr_argc - 2;
	pr_type_t **args = pr->pr_params + 2;

	qwaq_wprintf (pr, window_id, fmt, count, args);
}

static void
qwaq_wvprintf (progs_t *pr, int window_id, const char *fmt, pr_va_list_t *args)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");
	pr_type_t  *list_start = PR_GetPointer (pr, args->list);
	pr_type_t **list = alloca (args->count * sizeof (*list));

	for (int i = 0; i < args->count; i++) {
		list[i] = list_start + i * pr->pr_param_size;
	}

	if (get_window (res, __FUNCTION__, window_id)) {
		int         string_id = acquire_string (res);
		dstring_t  *print_buffer = res->strings + string_id;
		int         command[] = {
						qwaq_cmd_waddstr, 0,
						window_id, string_id
					};

		command[1] = CMD_SIZE(command);

		dstring_clearstr (print_buffer);
		PR_Sprintf (pr, print_buffer, "waddstr", fmt, args->count, list);

		qwaq_submit_command (res, command);
	}
}
static void
bi_wvprintf (progs_t *pr)
{
	int         window_id = P_INT (pr, 0);
	const char *fmt = P_GSTRING (pr, 1);
	__auto_type args = (pr_va_list_t *) &P_POINTER (pr, 2);

	qwaq_wvprintf (pr, window_id, fmt, args);
}

static void
qwaq_waddch (progs_t *pr, int window_id, int ch)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");

	if (get_window (res, __FUNCTION__, window_id)) {
		int         command[] = { qwaq_cmd_waddch, 0, window_id, ch };

		command[1] = CMD_SIZE(command);
		qwaq_submit_command (res, command);
	}
}
static void
bi_waddch (progs_t *pr)
{
	int         window_id = P_INT (pr, 0);
	int         ch = P_INT (pr, 0);

	qwaq_waddch (pr, window_id, ch);
}

static void
qwaq_mvwvprintf (progs_t *pr, int window_id, int x, int y,
				 const char *fmt, pr_va_list_t *args)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");
	pr_type_t  *list_start = PR_GetPointer (pr, args->list);
	pr_type_t **list = alloca (args->count * sizeof (*list));

	for (int i = 0; i < args->count; i++) {
		list[i] = list_start + i * pr->pr_param_size;
	}

	if (get_window (res, __FUNCTION__, window_id)) {
		int         string_id = acquire_string (res);
		dstring_t  *print_buffer = res->strings + string_id;
		int         command[] = {
						qwaq_cmd_mvwaddstr, 0,
						window_id, x, y, string_id
					};

		command[1] = CMD_SIZE(command);

		dstring_clearstr (print_buffer);
		PR_Sprintf (pr, print_buffer, "waddstr", fmt, args->count, list);

		qwaq_submit_command (res, command);
	}
}
static void
bi_mvwvprintf (progs_t *pr)
{
	int         window_id = P_INT (pr, 0);
	int         x = P_INT (pr, 1);
	int         y = P_INT (pr, 2);
	const char *fmt = P_GSTRING (pr, 2);
	__auto_type args = (pr_va_list_t *) &P_POINTER (pr, 3);

	qwaq_mvwvprintf (pr, x, y, window_id, fmt, args);
}

static void
qwaq_mvwaddch (progs_t *pr, int window_id, int x, int y, int ch)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");

	if (get_window (res, __FUNCTION__, window_id)) {
		int         command[] = {
						qwaq_cmd_mvwaddch, 0,
						window_id, x, y, ch
					};
		command[1] = CMD_SIZE(command);
		qwaq_submit_command (res, command);
	}
}
static void
bi_mvwaddch (progs_t *pr)
{
	int         window_id = P_INT (pr, 0);
	int         x = P_INT (pr, 1);
	int         y = P_INT (pr, 2);
	int         ch = P_INT (pr, 3);

	qwaq_mvwaddch (pr, window_id, x, y, ch);
}

static void
qwaq_wrefresh (progs_t *pr, int window_id)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");

	if (get_window (res, __FUNCTION__, window_id)) {
		int         command[] = { qwaq_cmd_wrefresh, 0, window_id, };
		command[1] = CMD_SIZE(command);
		qwaq_submit_command (res, command);
	}
}
static void
bi_wrefresh (progs_t *pr)
{
	int         window_id = P_INT (pr, 0);

	qwaq_wrefresh (pr, window_id);
}

static void
bi_get_event (progs_t *pr)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");
	qwaq_event_t *event = &G_STRUCT (pr, qwaq_event_t, P_INT (pr, 0));

	R_INT (pr) = get_event (res, event);
}

static void
bi_max_colors (progs_t *pr)
{
	R_INT (pr) = COLORS;
}

static void
bi_max_color_pairs (progs_t *pr)
{
	R_INT (pr) = COLOR_PAIRS;
}

static void
qwaq_init_pair (progs_t *pr, int pair, int f, int b)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");

	int         command[] = { qwaq_cmd_init_pair, 0, pair, f, b, };
	command[1] = CMD_SIZE(command);
	qwaq_submit_command (res, command);
}
static void
bi_init_pair (progs_t *pr)
{
	int         pair = P_INT (pr, 0);
	int         f = P_INT (pr, 1);
	int         b = P_INT (pr, 2);

	qwaq_init_pair (pr, pair, f, b);
}

static void
qwaq_wbkgd (progs_t *pr, int window_id, int ch)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");

	if (get_window (res, __FUNCTION__, window_id)) {
		int         command[] = { qwaq_cmd_wbkgd, 0, window_id, ch, };
		command[1] = CMD_SIZE(command);
		qwaq_submit_command (res, command);
	}
}
static void
bi_wbkgd (progs_t *pr)
{
	int         window_id = P_INT (pr, 0);
	int         ch = P_INT (pr, 1);

	qwaq_wbkgd (pr, window_id, ch);
}

static void
qwaq_werase (progs_t *pr, int window_id, int ch)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");

	if (get_window (res, __FUNCTION__, window_id)) {
		int         command[] = { qwaq_cmd_werase, 0, window_id, };
		command[1] = CMD_SIZE(command);
		qwaq_submit_command (res, command);
	}
}
static void
bi_werase (progs_t *pr)
{
	int         window_id = P_INT (pr, 0);
	int         ch = P_INT (pr, 1);

	qwaq_werase (pr, window_id, ch);
}

static void
qwaq_scrollok (progs_t *pr, int window_id, int flag)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");

	if (get_window (res, __FUNCTION__, window_id)) {
		int         command[] = { qwaq_cmd_scrollok, 0, window_id, flag, };
		command[1] = CMD_SIZE(command);
		qwaq_submit_command (res, command);
	}
}
static void
bi_scrollok (progs_t *pr)
{
	int         window_id = P_INT (pr, 0);
	int         flag = P_INT (pr, 1);

	qwaq_scrollok (pr, window_id, flag);
}

static const char qwaq_acs_char_map[] = "lmkjtuvwqxnos`afg~,+.-hi0pryz{|}";
static void
qwaq_acs_char (progs_t *pr, unsigned acs)
{
	if (acs < 256) {
		R_INT (pr) = NCURSES_ACS(acs);
	} else if (acs - 256 < sizeof (qwaq_acs_char_map)) {
		R_INT (pr) = NCURSES_ACS(qwaq_acs_char_map[acs - 256]);
	} else {
		R_INT (pr) = 0;
	}
}
static void
bi_acs_char (progs_t *pr)
{
	int         acs = P_INT (pr, 0);

	qwaq_acs_char (pr, acs);
}

static void
qwaq_move (progs_t *pr, int x, int y)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");

	int         command[] = { qwaq_cmd_move, 0, x, y, };
	command[1] = CMD_SIZE(command);
	qwaq_submit_command (res, command);
}
static void
bi_move (progs_t *pr)
{
	int         x = P_INT (pr, 0);
	int         y = P_INT (pr, 1);

	qwaq_move (pr, x, y);
}

static void
qwaq_curs_set (progs_t *pr, int visibility)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");

	int         command[] = { qwaq_cmd_curs_set, 0, visibility, };
	command[1] = CMD_SIZE(command);
	qwaq_submit_command (res, command);
}
static void
bi_curs_set (progs_t *pr)
{
	int         visibility = P_INT (pr, 0);

	qwaq_curs_set (pr, visibility);
}

static void
qwaq_wborder (progs_t *pr, int window_id,
			  box_sides_t sides, box_corners_t corns)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");

	if (get_window (res, __FUNCTION__, window_id)) {
		int         command[] = { qwaq_cmd_wborder, 0, window_id,
								  sides.ls, sides.rs, sides.ts, sides.bs,
								  corns.tl, corns.tr, corns.bl, corns.br, };
		command[1] = CMD_SIZE(command);
		qwaq_submit_command (res, command);
	}
}
static void
bi_wborder (progs_t *pr)
{
	int         window_id = P_INT (pr, 0);
	__auto_type sides = P_PACKED (pr, box_sides_t, 1);
	__auto_type corns = P_PACKED (pr, box_corners_t, 2);

	qwaq_wborder (pr, window_id, sides, corns);
}

static void
qwaq__mvwblit_line (progs_t *pr, int window_id, int x, int y,
				    int *chs, int len)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");

	if (get_window (res, __FUNCTION__, window_id)) {
		int         chs_id = acquire_string (res);
		dstring_t  *chs_buf = res->strings + chs_id;
		int         command[] = { qwaq_cmd_mvwblit_line, 0, window_id,
								  x, y, chs_id, len,};

		command[1] = CMD_SIZE(command);

		chs_buf->size = len * sizeof (int);
		dstring_adjust (chs_buf);
		memcpy (chs_buf->str, chs, len * sizeof (int));

		qwaq_submit_command (res, command);
	}
}
static void
bi_mvwblit_line (progs_t *pr)
{
	int         window_id = P_INT (pr, 0);
	int         x = P_INT (pr, 1);
	int         y = P_INT (pr, 2);
	int        *chs = (int *) P_GPOINTER (pr, 3);
	int         len = P_INT (pr, 4);
	qwaq__mvwblit_line (pr, window_id, x, y, chs, len);
}

static void *
qwaq_curses_thread (qwaq_thread_t *thread)
{
	qwaq_resources_t *res = thread->data;

	while (1) {
		process_commands (res);
		qwaq_process_input (res);
	}
	thread->return_code = 0;
	return thread;
}

static void
bi_initialize (progs_t *pr)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");

	initscr ();
	need_endwin = 1;
	res->initialized = 1;
	start_color ();
	raw ();
	keypad (stdscr, FALSE);	// do it ourselves
	noecho ();
	nonl ();
	nodelay (stdscr, TRUE);
	mousemask(ALL_MOUSE_EVENTS | REPORT_MOUSE_POSITION, NULL);
	qwaq_input_init (res);
	refresh();

	res->stdscr.win = stdscr;

	create_thread (qwaq_curses_thread, res);
}

static void
bi_printf (progs_t *pr)
{
	const char *fmt = P_GSTRING (pr, 0);
	int         count = pr->pr_argc - 1;
	pr_type_t **args = pr->pr_params + 1;
	dstring_t  *dstr = dstring_new ();

	PR_Sprintf (pr, dstr, "bi_printf", fmt, count, args);
	if (dstr->str)
		Sys_Printf (dstr->str, stdout);
	dstring_delete (dstr);
}

static void
bi_c_TextContext__is_initialized (progs_t *pr)
{
	qwaq_resources_t *res = PR_Resources_Find (pr, "qwaq");
	R_INT (pr) = res->initialized;
}

static void
bi_c_TextContext__max_colors (progs_t *pr)
{
	bi_max_colors (pr);
}

static void
bi_c_TextContext__max_color_pairs (progs_t *pr)
{
	bi_max_color_pairs (pr);
}

static void
bi_c_TextContext__init_pair_ (progs_t *pr)
{
	int         pair = P_INT (pr, 2);
	int         f = P_INT (pr, 3);
	int         b = P_INT (pr, 4);

	qwaq_init_pair (pr, pair, f, b);
}

static void
bi_c_TextContext__acs_char_ (progs_t *pr)
{
	int         acs = P_INT (pr, 2);

	qwaq_acs_char (pr, acs);
}

static void
bi_c_TextContext__move_ (progs_t *pr)
{
	Point      *pos = &P_PACKED (pr, Point, 2);

	qwaq_move (pr, pos->x, pos->y);
}

static void
bi_c_TextContext__curs_set_ (progs_t *pr)
{
	int         visibility = P_INT (pr, 2);

	qwaq_curs_set (pr, visibility);
}

static void
bi_c_TextContext__doupdate (progs_t *pr)
{
	bi_doupdate (pr);
}

static void
bi_i_TextContext__mvprintf_ (progs_t *pr)
{
	int         window_id = P_STRUCT (pr, qwaq_textcontext_t, 0).window;
	Point      *pos = &P_PACKED (pr, Point, 2);
	const char *fmt = P_GSTRING (pr, 3);
	int         count = pr->pr_argc - 4;
	pr_type_t **args = pr->pr_params + 4;

	qwaq_mvwprintf (pr, window_id, pos->x, pos->y, fmt, count, args);
}

static void
bi_i_TextContext__printf_ (progs_t *pr)
{
	int         window_id = P_STRUCT (pr, qwaq_textcontext_t, 0).window;
	const char *fmt = P_GSTRING (pr, 2);
	int         count = pr->pr_argc - 3;
	pr_type_t **args = pr->pr_params + 3;

	qwaq_wprintf (pr, window_id, fmt, count, args);
}

static void
bi_i_TextContext__vprintf_ (progs_t *pr)
{
	int         window_id = P_STRUCT (pr, qwaq_textcontext_t, 0).window;
	const char *fmt = P_GSTRING (pr, 2);
	__auto_type args = (pr_va_list_t *) &P_POINTER (pr, 3);

	qwaq_wvprintf (pr, window_id, fmt, args);
}

static void
bi_i_TextContext__addch_ (progs_t *pr)
{
	int         window_id = P_STRUCT (pr, qwaq_textcontext_t, 0).window;
	int         ch = P_INT (pr, 2);

	qwaq_waddch (pr, window_id, ch);
}

static void
bi_i_TextContext__addstr_ (progs_t *pr)
{
	int         window_id = P_STRUCT (pr, qwaq_textcontext_t, 0).window;
	const char *str = P_GSTRING (pr, 2);

	qwaq_waddstr (pr, window_id, str);
}

static void
bi_i_TextContext__mvvprintf_ (progs_t *pr)
{
	int         window_id = P_STRUCT (pr, qwaq_textcontext_t, 0).window;
	Point      *pos = &P_PACKED (pr, Point, 2);
	const char *fmt = P_GSTRING (pr, 3);
	__auto_type args = (pr_va_list_t *) &P_POINTER (pr, 4);

	qwaq_mvwvprintf (pr, pos->x, pos->y, window_id, fmt, args);
}

static void
bi_i_TextContext__resizeTo_ (progs_t *pr)
{
	__auto_type self = &P_STRUCT (pr, qwaq_textcontext_t, 0);
	int         window_id = self->window;

	self->size = P_PACKED (pr, Extent, 2);
	qwaq_wresize (pr, window_id, self->size.width, self->size.height);
	if (window_id == 1) {
		qwaq_wbkgd (pr, window_id, self->background);
	}
}

static void
bi_c_TextContext__refresh (progs_t *pr)
{
	qwaq_update_panels (pr);
	qwaq_doupdate (pr);
}

static void
bi_i_TextContext__refresh (progs_t *pr)
{
	int         window_id = P_STRUCT (pr, qwaq_textcontext_t, 0).window;

	//qwaq_wrefresh (pr, window_id);
	qwaq_update_panels (pr);
	if (window_id == 1) {
		qwaq_doupdate (pr);
	}
}

static void
bi_i_TextContext__mvaddch_ (progs_t *pr)
{
	int         window_id = P_STRUCT (pr, qwaq_textcontext_t, 0).window;
	Point      *pos = &P_PACKED (pr, Point, 2);
	int         ch = P_INT (pr, 3);

	qwaq_mvwaddch (pr, window_id, pos->x, pos->y, ch);
}

static void
bi_i_TextContext__mvaddstr_ (progs_t *pr)
{
	int         window_id = P_STRUCT (pr, qwaq_textcontext_t, 0).window;
	Point      *pos = &P_PACKED (pr, Point, 2);
	const char *str = P_GSTRING (pr, 3);

	qwaq_mvwaddstr (pr, window_id, pos->x, pos->y, str);
}

static void
bi_i_TextContext__bkgd_ (progs_t *pr)
{
	__auto_type self = &P_STRUCT (pr, qwaq_textcontext_t, 0);
	int         window_id = self->window;
	int         ch = P_INT (pr, 2);

	self->background = ch;
	qwaq_wbkgd (pr, window_id, ch);
}

static void
bi_i_TextContext__clear (progs_t *pr)
{
	int         window_id = P_STRUCT (pr, qwaq_textcontext_t, 0).window;
	int         ch = P_INT (pr, 2);

	qwaq_werase (pr, window_id, ch);
}

static void
bi_i_TextContext__scrollok_ (progs_t *pr)
{
	int         window_id = P_STRUCT (pr, qwaq_textcontext_t, 0).window;
	int         flag = P_INT (pr, 2);

	qwaq_scrollok (pr, window_id, flag);
}

static void
bi_i_TextContext__border_ (progs_t *pr)
{
	int         window_id = P_STRUCT (pr, qwaq_textcontext_t, 0).window;
	__auto_type sides = P_PACKED (pr, box_sides_t, 2);
	__auto_type corns = P_PACKED (pr, box_corners_t, 3);

	qwaq_wborder (pr, window_id, sides, corns);
}

static void
bi_qwaq_clear (progs_t *pr, void *data)
{
	__auto_type res = (qwaq_resources_t *) data;

	if (res->initialized) {
		qwaq_input_shutdown (res);
		endwin ();
	}
	need_endwin = 0;
	window_reset (res);
	panel_reset (res);
}

static builtin_t builtins[] = {
	{"initialize",		bi_initialize,		-1},
	{"create_window",	bi_newwin,			-1},
	{"destroy_window",	bi_delwin,			-1},
	{"getwrect",		bi_getwrect,		-1},
	{"create_panel",	bi_new_panel,		-1},
	{"destroy_panel",	bi_del_panel,		-1},
	{"hide_panel",		bi_hide_panel,		-1},
	{"show_panel",		bi_show_panel,		-1},
	{"top_panel",		bi_top_panel,		-1},
	{"bottom_panel",	bi_bottom_panel,	-1},
	{"move_panel",		bi_move_panel,		-1},
	{"panel_window",	bi_panel_window,	-1},
	{"replace_panel",	bi_replace_panel,	-1},
	{"update_panels",	bi_update_panels,	-1},
	{"doupdate",		bi_doupdate,		-1},
	{"mvwprintf",		bi_mvwprintf,		-1},
	{"wprintf",			bi_wprintf,			-1},
	{"wvprintf",		bi_wvprintf,		-1},
	{"mvwvprintf",		bi_mvwvprintf,		-1},
	{"mvwaddch",		bi_mvwaddch,		-1},
	{"waddch",			bi_waddch,			-1},
	{"mvwaddstr",		bi_mvwaddstr,		-1},
	{"waddstr",			bi_waddstr,			-1},
	{"wrefresh",		bi_wrefresh,		-1},
	{"get_event",		bi_get_event,		-1},
	{"max_colors",		bi_max_colors,		-1},
	{"max_color_pairs",	bi_max_color_pairs,	-1},
	{"init_pair",		bi_init_pair,		-1},
	{"wbkgd",			bi_wbkgd,			-1},
	{"werase",			bi_werase,			-1},
	{"scrollok",		bi_scrollok,		-1},
	{"acs_char",		bi_acs_char,		-1},
	{"move",			bi_move,			-1},
	{"curs_set",		bi_curs_set,		-1},
	{"wborder",			bi_wborder,			-1},
	{"mvwblit_line",	bi_mvwblit_line,	-1},
	{"wresize",			bi_wresize,			-1},
	{"resizeterm",		bi_resizeterm,		-1},

	{"printf",			bi_printf,	-1},

	{"_c_TextContext__is_initialized",	bi_c_TextContext__is_initialized,  -1},
	{"_c_TextContext__max_colors",		bi_c_TextContext__max_colors,	   -1},
	{"_c_TextContext__max_color_pairs",	bi_c_TextContext__max_color_pairs, -1},
	{"_c_TextContext__init_pair_",		bi_c_TextContext__init_pair_,	   -1},
	{"_c_TextContext__acs_char_",		bi_c_TextContext__acs_char_,	   -1},
	{"_c_TextContext__move_",			bi_c_TextContext__move_,		   -1},
	{"_c_TextContext__curs_set_",		bi_c_TextContext__curs_set_,	   -1},
	{"_c_TextContext__doupdate",		bi_c_TextContext__doupdate,		   -1},
	{"_i_TextContext__mvprintf_",		bi_i_TextContext__mvprintf_,	   -1},
	{"_i_TextContext__printf_",			bi_i_TextContext__printf_,		   -1},
	{"_i_TextContext__vprintf_",		bi_i_TextContext__vprintf_,		   -1},
	{"_i_TextContext__addch_",			bi_i_TextContext__addch_,		   -1},
	{"_i_TextContext__addstr_",			bi_i_TextContext__addstr_,		   -1},
	{"_i_TextContext__mvvprintf_",		bi_i_TextContext__mvvprintf_,	   -1},
	{"_i_TextContext__resizeTo_",		bi_i_TextContext__resizeTo_,	   -1},
	{"_c_TextContext__refresh",			bi_c_TextContext__refresh,		   -1},
	{"_i_TextContext__refresh",			bi_i_TextContext__refresh,		   -1},
	{"_i_TextContext__mvaddch_",		bi_i_TextContext__mvaddch_,		   -1},
	{"_i_TextContext__mvaddstr_",		bi_i_TextContext__mvaddstr_,	   -1},
	{"_i_TextContext__bkgd_",			bi_i_TextContext__bkgd_,		   -1},
	{"_i_TextContext__clear",			bi_i_TextContext__clear,		   -1},
	{"_i_TextContext__scrollok_",		bi_i_TextContext__scrollok_,	   -1},
	{"_i_TextContext__border_",			bi_i_TextContext__border_,		   -1},

	{0}
};

static FILE *logfile;

static __attribute__((format(printf, 1, 0))) void
qwaq_print (const char *fmt, va_list args)
{
	vfprintf (logfile, fmt, args);
	fflush (logfile);
}

void
qwaq_init_cond (rwcond_t *cond)
{
	pthread_cond_init (&cond->rcond, 0);
	pthread_cond_init (&cond->wcond, 0);
	pthread_mutex_init (&cond->mut, 0);
}

void
BI_Init (progs_t *pr)
{
	qwaq_resources_t *res = calloc (sizeof (*res), 1);
	res->pr = pr;

	for (int i = 0; i < STRING_ID_QUEUE_SIZE - 1; i++) {
		RB_WRITE_DATA (res->string_ids, &i, 1);
		res->strings[i].mem = &dstring_default_mem;
	}
	res->escbuff.mem = &dstring_default_mem;
	// ensure the backing buffer exists
	dstring_clearstr (&res->escbuff);

	qwaq_init_cond (&res->event_cond);
	qwaq_init_cond (&res->command_cond);
	qwaq_init_cond (&res->results_cond);
	qwaq_init_cond (&res->string_id_cond);

	PR_Resources_Register (pr, "qwaq", res, bi_qwaq_clear);
	PR_RegisterBuiltins (pr, builtins);
	Sys_RegisterShutdown (bi_shutdown, pr);
	logfile = fopen ("qwaq-curses.log", "wt");
	Sys_SetStdPrintf (qwaq_print);
}