2 * QEMU curses/ncurses display driver
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13 * The above copyright notice and this permission notice shall be included in
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16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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24 #include "qemu/osdep.h"
27 #include <sys/ioctl.h>
31 #include "qemu-common.h"
32 #include "ui/console.h"
34 #include "sysemu/sysemu.h"
36 #define FONT_HEIGHT 16
39 static DisplayChangeListener *dcl;
40 static console_ch_t screen[160 * 100];
41 static WINDOW *screenpad = NULL;
42 static int width, height, gwidth, gheight, invalidate;
43 static int px, py, sminx, sminy, smaxx, smaxy;
45 chtype vga_to_curses[256];
47 static void curses_update(DisplayChangeListener *dcl,
48 int x, int y, int w, int h)
52 line = ((chtype *) screen) + y * width;
53 for (h += y; y < h; y ++, line += width)
54 mvwaddchnstr(screenpad, y, 0, line, width);
56 pnoutrefresh(screenpad, py, px, sminy, sminx, smaxy - 1, smaxx - 1);
60 static void curses_calc_pad(void)
62 if (qemu_console_is_fixedsize(NULL)) {
76 screenpad = newpad(height, width);
79 px = (width - COLS) / 2;
84 sminx = (COLS - width) / 2;
85 smaxx = sminx + width;
89 py = (height - LINES) / 2;
94 sminy = (LINES - height) / 2;
95 smaxy = sminy + height;
99 static void curses_resize(DisplayChangeListener *dcl,
100 int width, int height)
102 if (width == gwidth && height == gheight) {
112 #if !defined(_WIN32) && defined(SIGWINCH) && defined(KEY_RESIZE)
113 static volatile sig_atomic_t got_sigwinch;
114 static void curses_winch_check(void)
117 unsigned short ws_row;
118 unsigned short ws_col;
119 unsigned short ws_xpixel; /* unused */
120 unsigned short ws_ypixel; /* unused */
126 got_sigwinch = false;
128 if (ioctl(1, TIOCGWINSZ, &ws) == -1) {
132 resize_term(ws.ws_row, ws.ws_col);
136 static void curses_winch_handler(int signum)
141 static void curses_winch_init(void)
143 struct sigaction old, winch = {
144 .sa_handler = curses_winch_handler,
146 sigaction(SIGWINCH, &winch, &old);
149 static void curses_winch_check(void) {}
150 static void curses_winch_init(void) {}
153 static void curses_cursor_position(DisplayChangeListener *dcl,
160 if (x >= 0 && y >= 0 && x < COLS && y < LINES) {
163 /* it seems that curs_set(1) must always be called before
164 * curs_set(2) for the latter to have effect */
165 if (!qemu_console_is_graphic(NULL)) {
175 /* generic keyboard conversion */
177 #include "curses_keys.h"
179 static kbd_layout_t *kbd_layout = NULL;
181 static void curses_refresh(DisplayChangeListener *dcl)
183 int chr, keysym, keycode, keycode_alt;
185 curses_winch_check();
191 graphic_hw_invalidate(NULL);
195 graphic_hw_text_update(NULL, screen);
198 /* while there are any pending key strokes to process */
205 /* this shouldn't occur when we use a custom SIGWINCH handler */
206 if (chr == KEY_RESIZE) {
210 curses_update(dcl, 0, 0, width, height);
215 keycode = curses2keycode[chr];
220 int nextchr = getch();
222 if (nextchr != ERR) {
225 keycode = curses2keycode[chr];
230 /* process keys reserved for qemu */
231 if (keycode >= QEMU_KEY_CONSOLE0 &&
232 keycode < QEMU_KEY_CONSOLE0 + 9) {
234 wnoutrefresh(stdscr);
235 console_select(keycode - QEMU_KEY_CONSOLE0);
246 if (chr < CURSES_KEYS)
247 keysym = curses2keysym[chr];
252 if (keysym >= 'A' && keysym <= 'Z')
254 keysym |= KEYSYM_CNTRL;
259 keycode = keysym2scancode(kbd_layout, keysym & KEYSYM_MASK);
263 keycode |= (keysym & ~KEYSYM_MASK) >> 16;
264 keycode |= keycode_alt;
270 if (qemu_console_is_graphic(NULL)) {
271 /* since terminals don't know about key press and release
272 * events, we need to emit both for each key received */
273 if (keycode & SHIFT) {
274 qemu_input_event_send_key_number(NULL, SHIFT_CODE, true);
275 qemu_input_event_send_key_delay(0);
277 if (keycode & CNTRL) {
278 qemu_input_event_send_key_number(NULL, CNTRL_CODE, true);
279 qemu_input_event_send_key_delay(0);
282 qemu_input_event_send_key_number(NULL, ALT_CODE, true);
283 qemu_input_event_send_key_delay(0);
285 if (keycode & ALTGR) {
286 qemu_input_event_send_key_number(NULL, GREY | ALT_CODE, true);
287 qemu_input_event_send_key_delay(0);
290 qemu_input_event_send_key_number(NULL, keycode & KEY_MASK, true);
291 qemu_input_event_send_key_delay(0);
292 qemu_input_event_send_key_number(NULL, keycode & KEY_MASK, false);
293 qemu_input_event_send_key_delay(0);
295 if (keycode & ALTGR) {
296 qemu_input_event_send_key_number(NULL, GREY | ALT_CODE, false);
297 qemu_input_event_send_key_delay(0);
300 qemu_input_event_send_key_number(NULL, ALT_CODE, false);
301 qemu_input_event_send_key_delay(0);
303 if (keycode & CNTRL) {
304 qemu_input_event_send_key_number(NULL, CNTRL_CODE, false);
305 qemu_input_event_send_key_delay(0);
307 if (keycode & SHIFT) {
308 qemu_input_event_send_key_number(NULL, SHIFT_CODE, false);
309 qemu_input_event_send_key_delay(0);
313 if (chr < CURSES_KEYS) {
314 keysym = curses2qemu[chr];
319 kbd_put_keysym(keysym);
324 static void curses_atexit(void)
329 static void curses_setup(void)
331 int i, colour_default[8] = {
332 [QEMU_COLOR_BLACK] = COLOR_BLACK,
333 [QEMU_COLOR_BLUE] = COLOR_BLUE,
334 [QEMU_COLOR_GREEN] = COLOR_GREEN,
335 [QEMU_COLOR_CYAN] = COLOR_CYAN,
336 [QEMU_COLOR_RED] = COLOR_RED,
337 [QEMU_COLOR_MAGENTA] = COLOR_MAGENTA,
338 [QEMU_COLOR_YELLOW] = COLOR_YELLOW,
339 [QEMU_COLOR_WHITE] = COLOR_WHITE,
342 /* input as raw as possible, let everything be interpreted
343 * by the guest system */
344 initscr(); noecho(); intrflush(stdscr, FALSE);
345 nodelay(stdscr, TRUE); nonl(); keypad(stdscr, TRUE);
346 start_color(); raw(); scrollok(stdscr, FALSE);
348 /* Make color pair to match color format (3bits bg:3bits fg) */
349 for (i = 0; i < 64; i++) {
350 init_pair(i, colour_default[i & 7], colour_default[i >> 3]);
352 /* Set default color for more than 64 for safety. */
353 for (i = 64; i < COLOR_PAIRS; i++) {
354 init_pair(i, COLOR_WHITE, COLOR_BLACK);
358 * Setup mapping for vga to curses line graphics.
359 * FIXME: for better font, have to use ncursesw and setlocale()
362 /* FIXME: map from where? */
368 /* ACS_* is not constant. So, we can't initialize statically. */
369 vga_to_curses['\0'] = ' ';
370 vga_to_curses[0x04] = ACS_DIAMOND;
371 vga_to_curses[0x18] = ACS_UARROW;
372 vga_to_curses[0x19] = ACS_DARROW;
373 vga_to_curses[0x1a] = ACS_RARROW;
374 vga_to_curses[0x1b] = ACS_LARROW;
375 vga_to_curses[0x9c] = ACS_STERLING;
376 vga_to_curses[0xb0] = ACS_BOARD;
377 vga_to_curses[0xb1] = ACS_CKBOARD;
378 vga_to_curses[0xb3] = ACS_VLINE;
379 vga_to_curses[0xb4] = ACS_RTEE;
380 vga_to_curses[0xbf] = ACS_URCORNER;
381 vga_to_curses[0xc0] = ACS_LLCORNER;
382 vga_to_curses[0xc1] = ACS_BTEE;
383 vga_to_curses[0xc2] = ACS_TTEE;
384 vga_to_curses[0xc3] = ACS_LTEE;
385 vga_to_curses[0xc4] = ACS_HLINE;
386 vga_to_curses[0xc5] = ACS_PLUS;
387 vga_to_curses[0xce] = ACS_LANTERN;
388 vga_to_curses[0xd8] = ACS_NEQUAL;
389 vga_to_curses[0xd9] = ACS_LRCORNER;
390 vga_to_curses[0xda] = ACS_ULCORNER;
391 vga_to_curses[0xdb] = ACS_BLOCK;
392 vga_to_curses[0xe3] = ACS_PI;
393 vga_to_curses[0xf1] = ACS_PLMINUS;
394 vga_to_curses[0xf2] = ACS_GEQUAL;
395 vga_to_curses[0xf3] = ACS_LEQUAL;
396 vga_to_curses[0xf8] = ACS_DEGREE;
397 vga_to_curses[0xfe] = ACS_BULLET;
400 static void curses_keyboard_setup(void)
402 #if defined(__APPLE__)
403 /* always use generic keymaps */
404 if (!keyboard_layout)
405 keyboard_layout = "en-us";
407 if(keyboard_layout) {
408 kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout);
414 static const DisplayChangeListenerOps dcl_ops = {
415 .dpy_name = "curses",
416 .dpy_text_update = curses_update,
417 .dpy_text_resize = curses_resize,
418 .dpy_refresh = curses_refresh,
419 .dpy_text_cursor = curses_cursor_position,
422 void curses_display_init(DisplayState *ds, int full_screen)
426 fprintf(stderr, "We need a terminal output\n");
432 curses_keyboard_setup();
433 atexit(curses_atexit);
437 dcl = g_new0(DisplayChangeListener, 1);
439 register_displaychangelistener(dcl);