[qemu.git] / ui / curses.c

/*
 * QEMU curses/ncurses display driver
 * 
 * Copyright (c) 2005 Andrzej Zaborowski  <balrog@zabor.org>
 * 
 * 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 <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 <balrog@zabor.org>
	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
4d3b6f6e AZ	27	#include <sys/ioctl.h>
	28	#include <termios.h>
	29	#endif
	30
128ab2ff BS	31	#ifdef __OpenBSD__
	32	#define resize_term resizeterm
	33	#endif
	34
511d2b14 BS	35	#include "qemu-common.h"
	36	#include "console.h"
	37	#include "sysemu.h"
	38
4d3b6f6e AZ	39	#define FONT_HEIGHT 16
	40	#define FONT_WIDTH 8
	41
c227f099	42	static console_ch_t screen[160 * 100];
4d3b6f6e AZ	43	static WINDOW *screenpad = NULL;
	44	static int width, height, gwidth, gheight, invalidate;
	45	static int px, py, sminx, sminy, smaxx, smaxy;
	46
	47	static void curses_update(DisplayState *ds, int x, int y, int w, int h)
	48	{
	49	chtype *line;
	50
	51	line = ((chtype ) screen) + y width;
	52	for (h += y; y < h; y ++, line += width)
	53	mvwaddchnstr(screenpad, y, 0, line, width);
	54
	55	pnoutrefresh(screenpad, py, px, sminy, sminx, smaxy - 1, smaxx - 1);
	56	refresh();
	57	}
	58
	59	static void curses_calc_pad(void)
	60	{
c21bbcfa	61	if (is_fixedsize_console()) {
4d3b6f6e AZ	62	width = gwidth;
	63	height = gheight;
	64	} else {
	65	width = COLS;
	66	height = LINES;
	67	}
	68
	69	if (screenpad)
	70	delwin(screenpad);
	71
	72	clear();
	73	refresh();
	74
	75	screenpad = newpad(height, width);
	76
	77	if (width > COLS) {
	78	px = (width - COLS) / 2;
	79	sminx = 0;
	80	smaxx = COLS;
	81	} else {
	82	px = 0;
	83	sminx = (COLS - width) / 2;
	84	smaxx = sminx + width;
	85	}
	86
	87	if (height > LINES) {
	88	py = (height - LINES) / 2;
	89	sminy = 0;
	90	smaxy = LINES;
	91	} else {
	92	py = 0;
	93	sminy = (LINES - height) / 2;
	94	smaxy = sminy + height;
	95	}
	96	}
	97
7d957bd8	98	static void curses_resize(DisplayState *ds)
4d3b6f6e	99	{
7d957bd8	100	if (ds_get_width(ds) == gwidth && ds_get_height(ds) == gheight)
4d3b6f6e AZ	101	return;
4d3b6f6e AZ	102
7d957bd8 AL	103	gwidth = ds_get_width(ds);
7d957bd8 AL	104	gheight = ds_get_height(ds);
4d3b6f6e AZ	105
4d3b6f6e AZ	106	curses_calc_pad();
68f00996 AL	107	ds->surface->width = width * FONT_WIDTH;
68f00996 AL	108	ds->surface->height = height * FONT_HEIGHT;
4d3b6f6e AZ	109	}
	110
	111	#ifndef _WIN32
b1314cf9	112	#if defined(SIGWINCH) && defined(KEY_RESIZE)
4d3b6f6e AZ	113	static void curses_winch_handler(int signum)
	114	{
	115	struct winsize {
	116	unsigned short ws_row;
	117	unsigned short ws_col;
	118	unsigned short ws_xpixel; /* unused */
	119	unsigned short ws_ypixel; /* unused */
	120	} ws;
	121
	122	/* terminal size changed */
	123	if (ioctl(1, TIOCGWINSZ, &ws) == -1)
	124	return;
	125
	126	resize_term(ws.ws_row, ws.ws_col);
	127	curses_calc_pad();
	128	invalidate = 1;
	129
	130	/* some systems require this */
	131	signal(SIGWINCH, curses_winch_handler);
	132	}
	133	#endif
	134	#endif
	135
	136	static void curses_cursor_position(DisplayState *ds, int x, int y)
	137	{
	138	if (x >= 0) {
	139	x = sminx + x - px;
	140	y = sminy + y - py;
	141
	142	if (x >= 0 && y >= 0 && x < COLS && y < LINES) {
	143	move(y, x);
	144	curs_set(1);
	145	/* it seems that curs_set(1) must always be called before
	146	* curs_set(2) for the latter to have effect */
	147	if (!is_graphic_console())
	148	curs_set(2);
	149	return;
	150	}
	151	}
	152
	153	curs_set(0);
	154	}
	155
	156	/* generic keyboard conversion */
	157
	158	#include "curses_keys.h"
4d3b6f6e	159
c227f099	160	static kbd_layout_t *kbd_layout = NULL;
4d3b6f6e AZ	161
	162	static void curses_refresh(DisplayState *ds)
	163	{
44bb61c8	164	int chr, nextchr, keysym, keycode, keycode_alt;
4d3b6f6e AZ	165
	166	if (invalidate) {
	167	clear();
	168	refresh();
	169	curses_calc_pad();
7d957bd8 AL	170	ds->surface->width = FONT_WIDTH * width;
7d957bd8 AL	171	ds->surface->height = FONT_HEIGHT * height;
4d3b6f6e AZ	172	vga_hw_invalidate();
	173	invalidate = 0;
	174	}
	175
	176	vga_hw_text_update(screen);
	177
	178	nextchr = ERR;
	179	while (1) {
	180	/* while there are any pending key strokes to process */
	181	if (nextchr == ERR)
	182	chr = getch();
	183	else {
	184	chr = nextchr;
	185	nextchr = ERR;
	186	}
	187
	188	if (chr == ERR)
	189	break;
	190
b1314cf9	191	#ifdef KEY_RESIZE
4d3b6f6e AZ	192	/* this shouldn't occur when we use a custom SIGWINCH handler */
	193	if (chr == KEY_RESIZE) {
	194	clear();
	195	refresh();
	196	curses_calc_pad();
	197	curses_update(ds, 0, 0, width, height);
7d957bd8 AL	198	ds->surface->width = FONT_WIDTH * width;
7d957bd8 AL	199	ds->surface->height = FONT_HEIGHT * height;
4d3b6f6e AZ	200	continue;
4d3b6f6e AZ	201	}
b1314cf9	202	#endif
4d3b6f6e AZ	203
4d3b6f6e AZ	204	keycode = curses2keycode[chr];
44bb61c8	205	keycode_alt = 0;
4d3b6f6e AZ	206
	207	/* alt key */
	208	if (keycode == 1) {
	209	nextchr = getch();
	210
	211	if (nextchr != ERR) {
44bb61c8 ST	212	chr = nextchr;
44bb61c8 ST	213	keycode_alt = ALT;
4d3b6f6e AZ	214	keycode = curses2keycode[nextchr];
4d3b6f6e AZ	215	nextchr = ERR;
4d3b6f6e	216
44bb61c8 ST	217	if (keycode != -1) {
44bb61c8 ST	218	keycode \|= ALT;
4d3b6f6e	219
44bb61c8 ST	220	/* process keys reserved for qemu */
	221	if (keycode >= QEMU_KEY_CONSOLE0 &&
	222	keycode < QEMU_KEY_CONSOLE0 + 9) {
	223	erase();
	224	wnoutrefresh(stdscr);
	225	console_select(keycode - QEMU_KEY_CONSOLE0);
4d3b6f6e	226
44bb61c8 ST	227	invalidate = 1;
	228	continue;
	229	}
4d3b6f6e AZ	230	}
	231	}
	232	}
	233
44bb61c8 ST	234	if (kbd_layout) {
	235	keysym = -1;
	236	if (chr < CURSES_KEYS)
	237	keysym = curses2keysym[chr];
	238
	239	if (keysym == -1) {
d03703c8 ST	240	if (chr < ' ') {
	241	keysym = chr + '@';
	242	if (keysym >= 'A' && keysym <= 'Z')
	243	keysym += 'a' - 'A';
	244	keysym \|= KEYSYM_CNTRL;
	245	} else
44bb61c8 ST	246	keysym = chr;
44bb61c8 ST	247	}
4d3b6f6e	248
44bb61c8 ST	249	keycode = keysym2scancode(kbd_layout, keysym & KEYSYM_MASK);
	250	if (keycode == 0)
	251	continue;
	252
	253	keycode \|= (keysym & ~KEYSYM_MASK) >> 16;
	254	keycode \|= keycode_alt;
4d3b6f6e AZ	255	}
4d3b6f6e AZ	256
44bb61c8 ST	257	if (keycode == -1)
	258	continue;
	259
4d3b6f6e AZ	260	if (is_graphic_console()) {
	261	/* since terminals don't know about key press and release
	262	* events, we need to emit both for each key received */
	263	if (keycode & SHIFT)
	264	kbd_put_keycode(SHIFT_CODE);
	265	if (keycode & CNTRL)
	266	kbd_put_keycode(CNTRL_CODE);
	267	if (keycode & ALT)
	268	kbd_put_keycode(ALT_CODE);
44bb61c8 ST	269	if (keycode & ALTGR) {
	270	kbd_put_keycode(SCANCODE_EMUL0);
	271	kbd_put_keycode(ALT_CODE);
	272	}
4d3b6f6e AZ	273	if (keycode & GREY)
	274	kbd_put_keycode(GREY_CODE);
	275	kbd_put_keycode(keycode & KEY_MASK);
	276	if (keycode & GREY)
	277	kbd_put_keycode(GREY_CODE);
	278	kbd_put_keycode((keycode & KEY_MASK) \| KEY_RELEASE);
44bb61c8 ST	279	if (keycode & ALTGR) {
	280	kbd_put_keycode(SCANCODE_EMUL0);
	281	kbd_put_keycode(ALT_CODE \| KEY_RELEASE);
	282	}
4d3b6f6e AZ	283	if (keycode & ALT)
	284	kbd_put_keycode(ALT_CODE \| KEY_RELEASE);
	285	if (keycode & CNTRL)
	286	kbd_put_keycode(CNTRL_CODE \| KEY_RELEASE);
	287	if (keycode & SHIFT)
	288	kbd_put_keycode(SHIFT_CODE \| KEY_RELEASE);
	289	} else {
44bb61c8	290	keysym = curses2qemu[chr];
4d3b6f6e AZ	291	if (keysym == -1)
	292	keysym = chr;
	293
	294	kbd_put_keysym(keysym);
	295	}
	296	}
	297	}
	298
aaf12c25	299	static void curses_atexit(void)
4d3b6f6e AZ	300	{
	301	endwin();
	302	}
	303
4d3b6f6e AZ	304	static void curses_setup(void)
	305	{
	306	int i, colour_default[8] = {
	307	COLOR_BLACK, COLOR_BLUE, COLOR_GREEN, COLOR_CYAN,
	308	COLOR_RED, COLOR_MAGENTA, COLOR_YELLOW, COLOR_WHITE,
	309	};
	310
	311	/* input as raw as possible, let everything be interpreted
	312	* by the guest system */
	313	initscr(); noecho(); intrflush(stdscr, FALSE);
	314	nodelay(stdscr, TRUE); nonl(); keypad(stdscr, TRUE);
	315	start_color(); raw(); scrollok(stdscr, FALSE);
	316
	317	for (i = 0; i < 64; i ++)
	318	init_pair(i, colour_default[i & 7], colour_default[i >> 3]);
	319	}
	320
	321	static void curses_keyboard_setup(void)
	322	{
4d3b6f6e AZ	323	#if defined(__APPLE__)
	324	/* always use generic keymaps */
	325	if (!keyboard_layout)
	326	keyboard_layout = "en-us";
	327	#endif
	328	if(keyboard_layout) {
0483755a	329	kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout);
4d3b6f6e AZ	330	if (!kbd_layout)
	331	exit(1);
	332	}
4d3b6f6e AZ	333	}
	334
	335	void curses_display_init(DisplayState *ds, int full_screen)
	336	{
7d957bd8	337	DisplayChangeListener *dcl;
4d3b6f6e AZ	338	#ifndef _WIN32
	339	if (!isatty(1)) {
	340	fprintf(stderr, "We need a terminal output\n");
	341	exit(1);
	342	}
	343	#endif
	344
	345	curses_setup();
	346	curses_keyboard_setup();
28695489	347	atexit(curses_atexit);
4d3b6f6e AZ	348
4d3b6f6e AZ	349	#ifndef _WIN32
b1314cf9	350	#if defined(SIGWINCH) && defined(KEY_RESIZE)
4d3b6f6e AZ	351	/* some curses implementations provide a handler, but we
	352	* want to be sure this is handled regardless of the library */
	353	signal(SIGWINCH, curses_winch_handler);
	354	#endif
	355	#endif
	356
7d957bd8	357	dcl = (DisplayChangeListener *) qemu_mallocz(sizeof(DisplayChangeListener));
7d957bd8 AL	358	dcl->dpy_update = curses_update;
	359	dcl->dpy_resize = curses_resize;
	360	dcl->dpy_refresh = curses_refresh;
	361	dcl->dpy_text_cursor = curses_cursor_position;
	362	register_displaychangelistener(ds, dcl);
7b5d76da	363	qemu_free_displaysurface(ds);
68f00996	364	ds->surface = qemu_create_displaysurface_from(640, 400, 0, 0, (uint8_t*) screen);
4d3b6f6e AZ	365
4d3b6f6e AZ	366	invalidate = 1;
4d3b6f6e	367	}