2 * QEMU curses/ncurses display driver
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7 * of this software and associated documentation files (the "Software"), to deal
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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"
28 #include <sys/ioctl.h>
32 #include "qemu-common.h"
33 #include "ui/console.h"
35 #include "sysemu/sysemu.h"
37 #define FONT_HEIGHT 16
40 static DisplayChangeListener *dcl;
41 static console_ch_t screen[160 * 100];
42 static WINDOW *screenpad = NULL;
43 static int width, height, gwidth, gheight, invalidate;
44 static int px, py, sminx, sminy, smaxx, smaxy;
46 chtype vga_to_curses[256];
48 static void curses_update(DisplayChangeListener *dcl,
49 int x, int y, int w, int h)
53 line = ((chtype *) screen) + y * width;
54 for (h += y; y < h; y ++, line += width)
55 mvwaddchnstr(screenpad, y, 0, line, width);
57 pnoutrefresh(screenpad, py, px, sminy, sminx, smaxy - 1, smaxx - 1);
61 static void curses_calc_pad(void)
63 if (qemu_console_is_fixedsize(NULL)) {
77 screenpad = newpad(height, width);
80 px = (width - COLS) / 2;
85 sminx = (COLS - width) / 2;
86 smaxx = sminx + width;
90 py = (height - LINES) / 2;
95 sminy = (LINES - height) / 2;
96 smaxy = sminy + height;
100 static void curses_resize(DisplayChangeListener *dcl,
101 int width, int height)
103 if (width == gwidth && height == gheight) {
113 #if !defined(_WIN32) && defined(SIGWINCH) && defined(KEY_RESIZE)
114 static volatile sig_atomic_t got_sigwinch;
115 static void curses_winch_check(void)
118 unsigned short ws_row;
119 unsigned short ws_col;
120 unsigned short ws_xpixel; /* unused */
121 unsigned short ws_ypixel; /* unused */
127 got_sigwinch = false;
129 if (ioctl(1, TIOCGWINSZ, &ws) == -1) {
133 resize_term(ws.ws_row, ws.ws_col);
137 static void curses_winch_handler(int signum)
142 static void curses_winch_init(void)
144 struct sigaction old, winch = {
145 .sa_handler = curses_winch_handler,
147 sigaction(SIGWINCH, &winch, &old);
150 static void curses_winch_check(void) {}
151 static void curses_winch_init(void) {}
154 static void curses_cursor_position(DisplayChangeListener *dcl,
161 if (x >= 0 && y >= 0 && x < COLS && y < LINES) {
164 /* it seems that curs_set(1) must always be called before
165 * curs_set(2) for the latter to have effect */
166 if (!qemu_console_is_graphic(NULL)) {
176 /* generic keyboard conversion */
178 #include "curses_keys.h"
180 static kbd_layout_t *kbd_layout = NULL;
182 static void curses_refresh(DisplayChangeListener *dcl)
184 int chr, keysym, keycode, keycode_alt;
186 curses_winch_check();
192 graphic_hw_invalidate(NULL);
196 graphic_hw_text_update(NULL, screen);
199 /* while there are any pending key strokes to process */
206 /* this shouldn't occur when we use a custom SIGWINCH handler */
207 if (chr == KEY_RESIZE) {
211 curses_update(dcl, 0, 0, width, height);
216 keycode = curses2keycode[chr];
221 int nextchr = getch();
223 if (nextchr != ERR) {
226 keycode = curses2keycode[chr];
231 /* process keys reserved for qemu */
232 if (keycode >= QEMU_KEY_CONSOLE0 &&
233 keycode < QEMU_KEY_CONSOLE0 + 9) {
235 wnoutrefresh(stdscr);
236 console_select(keycode - QEMU_KEY_CONSOLE0);
247 if (chr < CURSES_KEYS)
248 keysym = curses2keysym[chr];
253 if (keysym >= 'A' && keysym <= 'Z')
255 keysym |= KEYSYM_CNTRL;
260 keycode = keysym2scancode(kbd_layout, keysym & KEYSYM_MASK);
264 keycode |= (keysym & ~KEYSYM_MASK) >> 16;
265 keycode |= keycode_alt;
271 if (qemu_console_is_graphic(NULL)) {
272 /* since terminals don't know about key press and release
273 * events, we need to emit both for each key received */
274 if (keycode & SHIFT) {
275 qemu_input_event_send_key_number(NULL, SHIFT_CODE, true);
276 qemu_input_event_send_key_delay(0);
278 if (keycode & CNTRL) {
279 qemu_input_event_send_key_number(NULL, CNTRL_CODE, true);
280 qemu_input_event_send_key_delay(0);
283 qemu_input_event_send_key_number(NULL, ALT_CODE, true);
284 qemu_input_event_send_key_delay(0);
286 if (keycode & ALTGR) {
287 qemu_input_event_send_key_number(NULL, GREY | ALT_CODE, true);
288 qemu_input_event_send_key_delay(0);
291 qemu_input_event_send_key_number(NULL, keycode & KEY_MASK, true);
292 qemu_input_event_send_key_delay(0);
293 qemu_input_event_send_key_number(NULL, keycode & KEY_MASK, false);
294 qemu_input_event_send_key_delay(0);
296 if (keycode & ALTGR) {
297 qemu_input_event_send_key_number(NULL, GREY | ALT_CODE, false);
298 qemu_input_event_send_key_delay(0);
301 qemu_input_event_send_key_number(NULL, ALT_CODE, false);
302 qemu_input_event_send_key_delay(0);
304 if (keycode & CNTRL) {
305 qemu_input_event_send_key_number(NULL, CNTRL_CODE, false);
306 qemu_input_event_send_key_delay(0);
308 if (keycode & SHIFT) {
309 qemu_input_event_send_key_number(NULL, SHIFT_CODE, false);
310 qemu_input_event_send_key_delay(0);
314 if (chr < CURSES_KEYS) {
315 keysym = curses2qemu[chr];
320 kbd_put_keysym(keysym);
325 static void curses_atexit(void)
330 static void curses_setup(void)
332 int i, colour_default[8] = {
333 [QEMU_COLOR_BLACK] = COLOR_BLACK,
334 [QEMU_COLOR_BLUE] = COLOR_BLUE,
335 [QEMU_COLOR_GREEN] = COLOR_GREEN,
336 [QEMU_COLOR_CYAN] = COLOR_CYAN,
337 [QEMU_COLOR_RED] = COLOR_RED,
338 [QEMU_COLOR_MAGENTA] = COLOR_MAGENTA,
339 [QEMU_COLOR_YELLOW] = COLOR_YELLOW,
340 [QEMU_COLOR_WHITE] = COLOR_WHITE,
343 /* input as raw as possible, let everything be interpreted
344 * by the guest system */
345 initscr(); noecho(); intrflush(stdscr, FALSE);
346 nodelay(stdscr, TRUE); nonl(); keypad(stdscr, TRUE);
347 start_color(); raw(); scrollok(stdscr, FALSE);
349 /* Make color pair to match color format (3bits bg:3bits fg) */
350 for (i = 0; i < 64; i++) {
351 init_pair(i, colour_default[i & 7], colour_default[i >> 3]);
353 /* Set default color for more than 64 for safety. */
354 for (i = 64; i < COLOR_PAIRS; i++) {
355 init_pair(i, COLOR_WHITE, COLOR_BLACK);
359 * Setup mapping for vga to curses line graphics.
360 * FIXME: for better font, have to use ncursesw and setlocale()
363 /* FIXME: map from where? */
369 /* ACS_* is not constant. So, we can't initialize statically. */
370 vga_to_curses['\0'] = ' ';
371 vga_to_curses[0x04] = ACS_DIAMOND;
372 vga_to_curses[0x0a] = ACS_RARROW;
373 vga_to_curses[0x0b] = ACS_LARROW;
374 vga_to_curses[0x18] = ACS_UARROW;
375 vga_to_curses[0x19] = ACS_DARROW;
376 vga_to_curses[0x9c] = ACS_STERLING;
377 vga_to_curses[0xb0] = ACS_BOARD;
378 vga_to_curses[0xb1] = ACS_CKBOARD;
379 vga_to_curses[0xb3] = ACS_VLINE;
380 vga_to_curses[0xb4] = ACS_RTEE;
381 vga_to_curses[0xbf] = ACS_URCORNER;
382 vga_to_curses[0xc0] = ACS_LLCORNER;
383 vga_to_curses[0xc1] = ACS_BTEE;
384 vga_to_curses[0xc2] = ACS_TTEE;
385 vga_to_curses[0xc3] = ACS_LTEE;
386 vga_to_curses[0xc4] = ACS_HLINE;
387 vga_to_curses[0xc5] = ACS_PLUS;
388 vga_to_curses[0xce] = ACS_LANTERN;
389 vga_to_curses[0xd8] = ACS_NEQUAL;
390 vga_to_curses[0xd9] = ACS_LRCORNER;
391 vga_to_curses[0xda] = ACS_ULCORNER;
392 vga_to_curses[0xdb] = ACS_BLOCK;
393 vga_to_curses[0xe3] = ACS_PI;
394 vga_to_curses[0xf1] = ACS_PLMINUS;
395 vga_to_curses[0xf2] = ACS_GEQUAL;
396 vga_to_curses[0xf3] = ACS_LEQUAL;
397 vga_to_curses[0xf8] = ACS_DEGREE;
398 vga_to_curses[0xfe] = ACS_BULLET;
401 static void curses_keyboard_setup(void)
403 #if defined(__APPLE__)
404 /* always use generic keymaps */
405 if (!keyboard_layout)
406 keyboard_layout = "en-us";
408 if(keyboard_layout) {
409 kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout);
415 static const DisplayChangeListenerOps dcl_ops = {
416 .dpy_name = "curses",
417 .dpy_text_update = curses_update,
418 .dpy_text_resize = curses_resize,
419 .dpy_refresh = curses_refresh,
420 .dpy_text_cursor = curses_cursor_position,
423 void curses_display_init(DisplayState *ds, int full_screen)
427 fprintf(stderr, "We need a terminal output\n");
433 curses_keyboard_setup();
434 atexit(curses_atexit);
438 dcl = g_new0(DisplayChangeListener, 1);
440 register_displaychangelistener(dcl);