[qemu.git] / ui / curses.c

/*
 * QEMU curses/ncurses display driver
 * 
 * Copyright (c) 2005 Andrzej Zaborowski  <[email protected]>
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
#include <curses.h>

#ifndef _WIN32
#include <signal.h>
#include <sys/ioctl.h>
#include <termios.h>
#endif

#ifdef __OpenBSD__
#define resize_term resizeterm
#endif

#include "qemu-common.h"
#include "console.h"
#include "sysemu.h"

#define FONT_HEIGHT 16
#define FONT_WIDTH 8

static console_ch_t screen[160 * 100];
static WINDOW *screenpad = NULL;
static int width, height, gwidth, gheight, invalidate;
static int px, py, sminx, sminy, smaxx, smaxy;

static void curses_update(DisplayState *ds, int x, int y, int w, int h)
{
    chtype *line;

    line = ((chtype *) screen) + y * width;
    for (h += y; y < h; y ++, line += width)
        mvwaddchnstr(screenpad, y, 0, line, width);

    pnoutrefresh(screenpad, py, px, sminy, sminx, smaxy - 1, smaxx - 1);
    refresh();
}

static void curses_calc_pad(void)
{
    if (is_fixedsize_console()) {
        width = gwidth;
        height = gheight;
    } else {
        width = COLS;
        height = LINES;
    }

    if (screenpad)
        delwin(screenpad);

    clear();
    refresh();

    screenpad = newpad(height, width);

    if (width > COLS) {
        px = (width - COLS) / 2;
        sminx = 0;
        smaxx = COLS;
    } else {
        px = 0;
        sminx = (COLS - width) / 2;
        smaxx = sminx + width;
    }

    if (height > LINES) {
        py = (height - LINES) / 2;
        sminy = 0;
        smaxy = LINES;
    } else {
        py = 0;
        sminy = (LINES - height) / 2;
        smaxy = sminy + height;
    }
}

static void curses_resize(DisplayState *ds)
{
    if (ds_get_width(ds) == gwidth && ds_get_height(ds) == gheight)
        return;

    gwidth = ds_get_width(ds);
    gheight = ds_get_height(ds);

    curses_calc_pad();
    ds->surface->width = width * FONT_WIDTH;
    ds->surface->height = height * FONT_HEIGHT;
}

#ifndef _WIN32
#if defined(SIGWINCH) && defined(KEY_RESIZE)
static void curses_winch_handler(int signum)
{
    struct winsize {
        unsigned short ws_row;
        unsigned short ws_col;
        unsigned short ws_xpixel;   /* unused */
        unsigned short ws_ypixel;   /* unused */
    } ws;

    /* terminal size changed */
    if (ioctl(1, TIOCGWINSZ, &ws) == -1)
        return;

    resize_term(ws.ws_row, ws.ws_col);
    curses_calc_pad();
    invalidate = 1;

    /* some systems require this */
    signal(SIGWINCH, curses_winch_handler);
}
#endif
#endif

static void curses_cursor_position(DisplayState *ds, int x, int y)
{
    if (x >= 0) {
        x = sminx + x - px;
        y = sminy + y - py;

        if (x >= 0 && y >= 0 && x < COLS && y < LINES) {
            move(y, x);
            curs_set(1);
            /* it seems that curs_set(1) must always be called before
             * curs_set(2) for the latter to have effect */
            if (!is_graphic_console())
                curs_set(2);
            return;
        }
    }

    curs_set(0);
}

/* generic keyboard conversion */

#include "curses_keys.h"

static kbd_layout_t *kbd_layout = NULL;

static void curses_refresh(DisplayState *ds)
{
    int chr, nextchr, keysym, keycode, keycode_alt;

    if (invalidate) {
        clear();
        refresh();
        curses_calc_pad();
        ds->surface->width = FONT_WIDTH * width;
        ds->surface->height = FONT_HEIGHT * height;
        vga_hw_invalidate();
        invalidate = 0;
    }

    vga_hw_text_update(screen);

    nextchr = ERR;
    while (1) {
        /* while there are any pending key strokes to process */
        if (nextchr == ERR)
            chr = getch();
        else {
            chr = nextchr;
            nextchr = ERR;
        }

        if (chr == ERR)
            break;

#ifdef KEY_RESIZE
        /* this shouldn't occur when we use a custom SIGWINCH handler */
        if (chr == KEY_RESIZE) {
            clear();
            refresh();
            curses_calc_pad();
            curses_update(ds, 0, 0, width, height);
            ds->surface->width = FONT_WIDTH * width;
            ds->surface->height = FONT_HEIGHT * height;
            continue;
        }
#endif

        keycode = curses2keycode[chr];
        keycode_alt = 0;

        /* alt key */
        if (keycode == 1) {
            nextchr = getch();

            if (nextchr != ERR) {
                chr = nextchr;
                keycode_alt = ALT;
                keycode = curses2keycode[nextchr];
                nextchr = ERR;

                if (keycode != -1) {
                    keycode |= ALT;

                    /* process keys reserved for qemu */
                    if (keycode >= QEMU_KEY_CONSOLE0 &&
                            keycode < QEMU_KEY_CONSOLE0 + 9) {
                        erase();
                        wnoutrefresh(stdscr);
                        console_select(keycode - QEMU_KEY_CONSOLE0);

                        invalidate = 1;
                        continue;
                    }
                }
            }
        }

        if (kbd_layout) {
            keysym = -1;
            if (chr < CURSES_KEYS)
                keysym = curses2keysym[chr];

            if (keysym == -1) {
                if (chr < ' ') {
                    keysym = chr + '@';
                    if (keysym >= 'A' && keysym <= 'Z')
                        keysym += 'a' - 'A';
                    keysym |= KEYSYM_CNTRL;
                } else
                    keysym = chr;
            }

            keycode = keysym2scancode(kbd_layout, keysym & KEYSYM_MASK);
            if (keycode == 0)
                continue;

            keycode |= (keysym & ~KEYSYM_MASK) >> 16;
            keycode |= keycode_alt;
        }

        if (keycode == -1)
            continue;

        if (is_graphic_console()) {
            /* since terminals don't know about key press and release
             * events, we need to emit both for each key received */
            if (keycode & SHIFT)
                kbd_put_keycode(SHIFT_CODE);
            if (keycode & CNTRL)
                kbd_put_keycode(CNTRL_CODE);
            if (keycode & ALT)
                kbd_put_keycode(ALT_CODE);
            if (keycode & ALTGR) {
                kbd_put_keycode(SCANCODE_EMUL0);
                kbd_put_keycode(ALT_CODE);
            }
            if (keycode & GREY)
                kbd_put_keycode(GREY_CODE);
            kbd_put_keycode(keycode & KEY_MASK);
            if (keycode & GREY)
                kbd_put_keycode(GREY_CODE);
            kbd_put_keycode((keycode & KEY_MASK) | KEY_RELEASE);
            if (keycode & ALTGR) {
                kbd_put_keycode(SCANCODE_EMUL0);
                kbd_put_keycode(ALT_CODE | KEY_RELEASE);
            }
            if (keycode & ALT)
                kbd_put_keycode(ALT_CODE | KEY_RELEASE);
            if (keycode & CNTRL)
                kbd_put_keycode(CNTRL_CODE | KEY_RELEASE);
            if (keycode & SHIFT)
                kbd_put_keycode(SHIFT_CODE | KEY_RELEASE);
        } else {
            keysym = curses2qemu[chr];
            if (keysym == -1)
                keysym = chr;

            kbd_put_keysym(keysym);
        }
    }
}

static void curses_atexit(void)
{
    endwin();
}

static void curses_setup(void)
{
    int i, colour_default[8] = {
        COLOR_BLACK, COLOR_BLUE, COLOR_GREEN, COLOR_CYAN,
        COLOR_RED, COLOR_MAGENTA, COLOR_YELLOW, COLOR_WHITE,
    };

    /* input as raw as possible, let everything be interpreted
     * by the guest system */
    initscr(); noecho(); intrflush(stdscr, FALSE);
    nodelay(stdscr, TRUE); nonl(); keypad(stdscr, TRUE);
    start_color(); raw(); scrollok(stdscr, FALSE);

    for (i = 0; i < 64; i ++)
        init_pair(i, colour_default[i & 7], colour_default[i >> 3]);
}

static void curses_keyboard_setup(void)
{
#if defined(__APPLE__)
    /* always use generic keymaps */
    if (!keyboard_layout)
        keyboard_layout = "en-us";
#endif
    if(keyboard_layout) {
        kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout);
        if (!kbd_layout)
            exit(1);
    }
}

void curses_display_init(DisplayState *ds, int full_screen)
{
    DisplayChangeListener *dcl;
#ifndef _WIN32
    if (!isatty(1)) {
        fprintf(stderr, "We need a terminal output\n");
        exit(1);
    }
#endif

    curses_setup();
    curses_keyboard_setup();
    atexit(curses_atexit);

#ifndef _WIN32
#if defined(SIGWINCH) && defined(KEY_RESIZE)
    /* some curses implementations provide a handler, but we
     * want to be sure this is handled regardless of the library */
    signal(SIGWINCH, curses_winch_handler);
#endif
#endif

    dcl = (DisplayChangeListener *) qemu_mallocz(sizeof(DisplayChangeListener));
    dcl->dpy_update = curses_update;
    dcl->dpy_resize = curses_resize;
    dcl->dpy_refresh = curses_refresh;
    dcl->dpy_text_cursor = curses_cursor_position;
    register_displaychangelistener(ds, dcl);
    qemu_free_displaysurface(ds);
    ds->surface = qemu_create_displaysurface_from(640, 400, 0, 0, (uint8_t*) screen);

    invalidate = 1;
}
Commit	Line	Data
4d3b6f6e AZ	1	/*
	2	* QEMU curses/ncurses display driver
	3	*
	4	* Copyright (c) 2005 Andrzej Zaborowski <[email protected]>
	5	*
	6	* Permission is hereby granted, free of charge, to any person obtaining a copy
	7	* of this software and associated documentation files (the "Software"), to deal
	8	* in the Software without restriction, including without limitation the rights
	9	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	10	* copies of the Software, and to permit persons to whom the Software is
	11	* furnished to do so, subject to the following conditions:
	12	*
	13	* The above copyright notice and this permission notice shall be included in
	14	* all copies or substantial portions of the Software.
	15	*
	16	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	17	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	18	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	19	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	20	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	21	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	22	* THE SOFTWARE.
	23	*/
4d3b6f6e AZ	24	#include <curses.h>
	25
	26	#ifndef _WIN32
	27	#include <signal.h>
	28	#include <sys/ioctl.h>
	29	#include <termios.h>
	30	#endif
	31
128ab2ff BS	32	#ifdef __OpenBSD__
	33	#define resize_term resizeterm
	34	#endif
	35
511d2b14 BS	36	#include "qemu-common.h"
	37	#include "console.h"
	38	#include "sysemu.h"
	39
4d3b6f6e AZ	40	#define FONT_HEIGHT 16
	41	#define FONT_WIDTH 8
	42
c227f099	43	static console_ch_t screen[160 * 100];
4d3b6f6e AZ	44	static WINDOW *screenpad = NULL;
	45	static int width, height, gwidth, gheight, invalidate;
	46	static int px, py, sminx, sminy, smaxx, smaxy;
	47
	48	static void curses_update(DisplayState *ds, int x, int y, int w, int h)
	49	{
	50	chtype *line;
	51
	52	line = ((chtype ) screen) + y width;
	53	for (h += y; y < h; y ++, line += width)
	54	mvwaddchnstr(screenpad, y, 0, line, width);
	55
	56	pnoutrefresh(screenpad, py, px, sminy, sminx, smaxy - 1, smaxx - 1);
	57	refresh();
	58	}
	59
	60	static void curses_calc_pad(void)
	61	{
c21bbcfa	62	if (is_fixedsize_console()) {
4d3b6f6e AZ	63	width = gwidth;
	64	height = gheight;
	65	} else {
	66	width = COLS;
	67	height = LINES;
	68	}
	69
	70	if (screenpad)
	71	delwin(screenpad);
	72
	73	clear();
	74	refresh();
	75
	76	screenpad = newpad(height, width);
	77
	78	if (width > COLS) {
	79	px = (width - COLS) / 2;
	80	sminx = 0;
	81	smaxx = COLS;
	82	} else {
	83	px = 0;
	84	sminx = (COLS - width) / 2;
	85	smaxx = sminx + width;
	86	}
	87
	88	if (height > LINES) {
	89	py = (height - LINES) / 2;
	90	sminy = 0;
	91	smaxy = LINES;
	92	} else {
	93	py = 0;
	94	sminy = (LINES - height) / 2;
	95	smaxy = sminy + height;
	96	}
	97	}
	98
7d957bd8	99	static void curses_resize(DisplayState *ds)
4d3b6f6e	100	{
7d957bd8	101	if (ds_get_width(ds) == gwidth && ds_get_height(ds) == gheight)
4d3b6f6e AZ	102	return;
4d3b6f6e AZ	103
7d957bd8 AL	104	gwidth = ds_get_width(ds);
7d957bd8 AL	105	gheight = ds_get_height(ds);
4d3b6f6e AZ	106
4d3b6f6e AZ	107	curses_calc_pad();
68f00996 AL	108	ds->surface->width = width * FONT_WIDTH;
68f00996 AL	109	ds->surface->height = height * FONT_HEIGHT;
4d3b6f6e AZ	110	}
	111
	112	#ifndef _WIN32
b1314cf9	113	#if defined(SIGWINCH) && defined(KEY_RESIZE)
4d3b6f6e AZ	114	static void curses_winch_handler(int signum)
	115	{
	116	struct winsize {
	117	unsigned short ws_row;
	118	unsigned short ws_col;
	119	unsigned short ws_xpixel; /* unused */
	120	unsigned short ws_ypixel; /* unused */
	121	} ws;
	122
	123	/* terminal size changed */
	124	if (ioctl(1, TIOCGWINSZ, &ws) == -1)
	125	return;
	126
	127	resize_term(ws.ws_row, ws.ws_col);
	128	curses_calc_pad();
	129	invalidate = 1;
	130
	131	/* some systems require this */
	132	signal(SIGWINCH, curses_winch_handler);
	133	}
	134	#endif
	135	#endif
	136
	137	static void curses_cursor_position(DisplayState *ds, int x, int y)
	138	{
	139	if (x >= 0) {
	140	x = sminx + x - px;
	141	y = sminy + y - py;
	142
	143	if (x >= 0 && y >= 0 && x < COLS && y < LINES) {
	144	move(y, x);
	145	curs_set(1);
	146	/* it seems that curs_set(1) must always be called before
	147	* curs_set(2) for the latter to have effect */
	148	if (!is_graphic_console())
	149	curs_set(2);
	150	return;
	151	}
	152	}
	153
	154	curs_set(0);
	155	}
	156
	157	/* generic keyboard conversion */
	158
	159	#include "curses_keys.h"
4d3b6f6e	160
c227f099	161	static kbd_layout_t *kbd_layout = NULL;
4d3b6f6e AZ	162
	163	static void curses_refresh(DisplayState *ds)
	164	{
44bb61c8	165	int chr, nextchr, keysym, keycode, keycode_alt;
4d3b6f6e AZ	166
	167	if (invalidate) {
	168	clear();
	169	refresh();
	170	curses_calc_pad();
7d957bd8 AL	171	ds->surface->width = FONT_WIDTH * width;
7d957bd8 AL	172	ds->surface->height = FONT_HEIGHT * height;
4d3b6f6e AZ	173	vga_hw_invalidate();
	174	invalidate = 0;
	175	}
	176
	177	vga_hw_text_update(screen);
	178
	179	nextchr = ERR;
	180	while (1) {
	181	/* while there are any pending key strokes to process */
	182	if (nextchr == ERR)
	183	chr = getch();
	184	else {
	185	chr = nextchr;
	186	nextchr = ERR;
	187	}
	188
	189	if (chr == ERR)
	190	break;
	191
b1314cf9	192	#ifdef KEY_RESIZE
4d3b6f6e AZ	193	/* this shouldn't occur when we use a custom SIGWINCH handler */
	194	if (chr == KEY_RESIZE) {
	195	clear();
	196	refresh();
	197	curses_calc_pad();
	198	curses_update(ds, 0, 0, width, height);
7d957bd8 AL	199	ds->surface->width = FONT_WIDTH * width;
7d957bd8 AL	200	ds->surface->height = FONT_HEIGHT * height;
4d3b6f6e AZ	201	continue;
4d3b6f6e AZ	202	}
b1314cf9	203	#endif
4d3b6f6e AZ	204
4d3b6f6e AZ	205	keycode = curses2keycode[chr];
44bb61c8	206	keycode_alt = 0;
4d3b6f6e AZ	207
	208	/* alt key */
	209	if (keycode == 1) {
	210	nextchr = getch();
	211
	212	if (nextchr != ERR) {
44bb61c8 ST	213	chr = nextchr;
44bb61c8 ST	214	keycode_alt = ALT;
4d3b6f6e AZ	215	keycode = curses2keycode[nextchr];
4d3b6f6e AZ	216	nextchr = ERR;
4d3b6f6e	217
44bb61c8 ST	218	if (keycode != -1) {
44bb61c8 ST	219	keycode \|= ALT;
4d3b6f6e	220
44bb61c8 ST	221	/* process keys reserved for qemu */
	222	if (keycode >= QEMU_KEY_CONSOLE0 &&
	223	keycode < QEMU_KEY_CONSOLE0 + 9) {
	224	erase();
	225	wnoutrefresh(stdscr);
	226	console_select(keycode - QEMU_KEY_CONSOLE0);
4d3b6f6e	227
44bb61c8 ST	228	invalidate = 1;
	229	continue;
	230	}
4d3b6f6e AZ	231	}
	232	}
	233	}
	234
44bb61c8 ST	235	if (kbd_layout) {
	236	keysym = -1;
	237	if (chr < CURSES_KEYS)
	238	keysym = curses2keysym[chr];
	239
	240	if (keysym == -1) {
d03703c8 ST	241	if (chr < ' ') {
	242	keysym = chr + '@';
	243	if (keysym >= 'A' && keysym <= 'Z')
	244	keysym += 'a' - 'A';
	245	keysym \|= KEYSYM_CNTRL;
	246	} else
44bb61c8 ST	247	keysym = chr;
44bb61c8 ST	248	}
4d3b6f6e	249
44bb61c8 ST	250	keycode = keysym2scancode(kbd_layout, keysym & KEYSYM_MASK);
	251	if (keycode == 0)
	252	continue;
	253
	254	keycode \|= (keysym & ~KEYSYM_MASK) >> 16;
	255	keycode \|= keycode_alt;
4d3b6f6e AZ	256	}
4d3b6f6e AZ	257
44bb61c8 ST	258	if (keycode == -1)
	259	continue;
	260
4d3b6f6e AZ	261	if (is_graphic_console()) {
	262	/* since terminals don't know about key press and release
	263	* events, we need to emit both for each key received */
	264	if (keycode & SHIFT)
	265	kbd_put_keycode(SHIFT_CODE);
	266	if (keycode & CNTRL)
	267	kbd_put_keycode(CNTRL_CODE);
	268	if (keycode & ALT)
	269	kbd_put_keycode(ALT_CODE);
44bb61c8 ST	270	if (keycode & ALTGR) {
	271	kbd_put_keycode(SCANCODE_EMUL0);
	272	kbd_put_keycode(ALT_CODE);
	273	}
4d3b6f6e AZ	274	if (keycode & GREY)
	275	kbd_put_keycode(GREY_CODE);
	276	kbd_put_keycode(keycode & KEY_MASK);
	277	if (keycode & GREY)
	278	kbd_put_keycode(GREY_CODE);
	279	kbd_put_keycode((keycode & KEY_MASK) \| KEY_RELEASE);
44bb61c8 ST	280	if (keycode & ALTGR) {
	281	kbd_put_keycode(SCANCODE_EMUL0);
	282	kbd_put_keycode(ALT_CODE \| KEY_RELEASE);
	283	}
4d3b6f6e AZ	284	if (keycode & ALT)
	285	kbd_put_keycode(ALT_CODE \| KEY_RELEASE);
	286	if (keycode & CNTRL)
	287	kbd_put_keycode(CNTRL_CODE \| KEY_RELEASE);
	288	if (keycode & SHIFT)
	289	kbd_put_keycode(SHIFT_CODE \| KEY_RELEASE);
	290	} else {
44bb61c8	291	keysym = curses2qemu[chr];
4d3b6f6e AZ	292	if (keysym == -1)
	293	keysym = chr;
	294
	295	kbd_put_keysym(keysym);
	296	}
	297	}
	298	}
	299
aaf12c25	300	static void curses_atexit(void)
4d3b6f6e AZ	301	{
	302	endwin();
	303	}
	304
4d3b6f6e AZ	305	static void curses_setup(void)
	306	{
	307	int i, colour_default[8] = {
	308	COLOR_BLACK, COLOR_BLUE, COLOR_GREEN, COLOR_CYAN,
	309	COLOR_RED, COLOR_MAGENTA, COLOR_YELLOW, COLOR_WHITE,
	310	};
	311
	312	/* input as raw as possible, let everything be interpreted
	313	* by the guest system */
	314	initscr(); noecho(); intrflush(stdscr, FALSE);
	315	nodelay(stdscr, TRUE); nonl(); keypad(stdscr, TRUE);
	316	start_color(); raw(); scrollok(stdscr, FALSE);
	317
	318	for (i = 0; i < 64; i ++)
	319	init_pair(i, colour_default[i & 7], colour_default[i >> 3]);
	320	}
	321
	322	static void curses_keyboard_setup(void)
	323	{
4d3b6f6e AZ	324	#if defined(__APPLE__)
	325	/* always use generic keymaps */
	326	if (!keyboard_layout)
	327	keyboard_layout = "en-us";
	328	#endif
	329	if(keyboard_layout) {
0483755a	330	kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout);
4d3b6f6e AZ	331	if (!kbd_layout)
	332	exit(1);
	333	}
4d3b6f6e AZ	334	}
	335
	336	void curses_display_init(DisplayState *ds, int full_screen)
	337	{
7d957bd8	338	DisplayChangeListener *dcl;
4d3b6f6e AZ	339	#ifndef _WIN32
	340	if (!isatty(1)) {
	341	fprintf(stderr, "We need a terminal output\n");
	342	exit(1);
	343	}
	344	#endif
	345
	346	curses_setup();
	347	curses_keyboard_setup();
28695489	348	atexit(curses_atexit);
4d3b6f6e AZ	349
4d3b6f6e AZ	350	#ifndef _WIN32
b1314cf9	351	#if defined(SIGWINCH) && defined(KEY_RESIZE)
4d3b6f6e AZ	352	/* some curses implementations provide a handler, but we
	353	* want to be sure this is handled regardless of the library */
	354	signal(SIGWINCH, curses_winch_handler);
	355	#endif
	356	#endif
	357
7d957bd8	358	dcl = (DisplayChangeListener *) qemu_mallocz(sizeof(DisplayChangeListener));
7d957bd8 AL	359	dcl->dpy_update = curses_update;
	360	dcl->dpy_resize = curses_resize;
	361	dcl->dpy_refresh = curses_refresh;
	362	dcl->dpy_text_cursor = curses_cursor_position;
	363	register_displaychangelistener(ds, dcl);
7b5d76da	364	qemu_free_displaysurface(ds);
68f00996	365	ds->surface = qemu_create_displaysurface_from(640, 400, 0, 0, (uint8_t*) screen);
4d3b6f6e AZ	366
4d3b6f6e AZ	367	invalidate = 1;
4d3b6f6e	368	}