2 * QEMU curses/ncurses display driver
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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
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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
24 #include "qemu/osdep.h"
27 #include <sys/ioctl.h>
31 #include "qapi/error.h"
32 #include "qemu-common.h"
33 #include "ui/console.h"
35 #include "sysemu/sysemu.h"
37 /* KEY_EVENT is defined in wincon.h and in curses.h. Avoid redefinition. */
42 #define FONT_HEIGHT 16
48 CURSES_CHAR_OR_KEYCODE,
51 static DisplayChangeListener *dcl;
52 static console_ch_t screen[160 * 100];
53 static WINDOW *screenpad = NULL;
54 static int width, height, gwidth, gheight, invalidate;
55 static int px, py, sminx, sminy, smaxx, smaxy;
57 static chtype vga_to_curses[256];
59 static void curses_update(DisplayChangeListener *dcl,
60 int x, int y, int w, int h)
63 chtype curses_line[width];
65 line = screen + y * width;
66 for (h += y; y < h; y ++, line += width) {
67 for (x = 0; x < width; x++) {
68 chtype ch = line[x] & 0xff;
69 chtype at = line[x] & ~0xff;
70 if (vga_to_curses[ch]) {
71 ch = vga_to_curses[ch];
73 curses_line[x] = ch | at;
75 mvwaddchnstr(screenpad, y, 0, curses_line, width);
78 pnoutrefresh(screenpad, py, px, sminy, sminx, smaxy - 1, smaxx - 1);
82 static void curses_calc_pad(void)
84 if (qemu_console_is_fixedsize(NULL)) {
98 screenpad = newpad(height, width);
101 px = (width - COLS) / 2;
106 sminx = (COLS - width) / 2;
107 smaxx = sminx + width;
110 if (height > LINES) {
111 py = (height - LINES) / 2;
116 sminy = (LINES - height) / 2;
117 smaxy = sminy + height;
121 static void curses_resize(DisplayChangeListener *dcl,
122 int width, int height)
124 if (width == gwidth && height == gheight) {
134 #if !defined(_WIN32) && defined(SIGWINCH) && defined(KEY_RESIZE)
135 static volatile sig_atomic_t got_sigwinch;
136 static void curses_winch_check(void)
139 unsigned short ws_row;
140 unsigned short ws_col;
141 unsigned short ws_xpixel; /* unused */
142 unsigned short ws_ypixel; /* unused */
148 got_sigwinch = false;
150 if (ioctl(1, TIOCGWINSZ, &ws) == -1) {
154 resize_term(ws.ws_row, ws.ws_col);
158 static void curses_winch_handler(int signum)
163 static void curses_winch_init(void)
165 struct sigaction old, winch = {
166 .sa_handler = curses_winch_handler,
168 sigaction(SIGWINCH, &winch, &old);
171 static void curses_winch_check(void) {}
172 static void curses_winch_init(void) {}
175 static void curses_cursor_position(DisplayChangeListener *dcl,
182 if (x >= 0 && y >= 0 && x < COLS && y < LINES) {
185 /* it seems that curs_set(1) must always be called before
186 * curs_set(2) for the latter to have effect */
187 if (!qemu_console_is_graphic(NULL)) {
197 /* generic keyboard conversion */
199 #include "curses_keys.h"
201 static kbd_layout_t *kbd_layout = NULL;
203 static wint_t console_getch(enum maybe_keycode *maybe_keycode)
206 switch (get_wch(&ret)) {
208 *maybe_keycode = CURSES_KEYCODE;
211 *maybe_keycode = CURSES_CHAR;
220 static int curses2foo(const int _curses2foo[], const int _curseskey2foo[],
221 int chr, enum maybe_keycode maybe_keycode)
224 if (maybe_keycode == CURSES_CHAR) {
225 if (chr < CURSES_CHARS) {
226 ret = _curses2foo[chr];
229 if (chr < CURSES_KEYS) {
230 ret = _curseskey2foo[chr];
232 if (ret == -1 && maybe_keycode == CURSES_CHAR_OR_KEYCODE &&
233 chr < CURSES_CHARS) {
234 ret = _curses2foo[chr];
240 #define curses2keycode(chr, maybe_keycode) \
241 curses2foo(_curses2keycode, _curseskey2keycode, chr, maybe_keycode)
242 #define curses2keysym(chr, maybe_keycode) \
243 curses2foo(_curses2keysym, _curseskey2keysym, chr, maybe_keycode)
244 #define curses2qemu(chr, maybe_keycode) \
245 curses2foo(_curses2qemu, _curseskey2qemu, chr, maybe_keycode)
247 static void curses_refresh(DisplayChangeListener *dcl)
249 int chr, keysym, keycode, keycode_alt;
250 enum maybe_keycode maybe_keycode;
252 curses_winch_check();
258 graphic_hw_invalidate(NULL);
262 graphic_hw_text_update(NULL, screen);
265 /* while there are any pending key strokes to process */
266 chr = console_getch(&maybe_keycode);
272 /* this shouldn't occur when we use a custom SIGWINCH handler */
273 if (maybe_keycode != CURSES_CHAR && chr == KEY_RESIZE) {
277 curses_update(dcl, 0, 0, width, height);
282 keycode = curses2keycode(chr, maybe_keycode);
287 enum maybe_keycode next_maybe_keycode;
288 int nextchr = console_getch(&next_maybe_keycode);
292 maybe_keycode = next_maybe_keycode;
294 keycode = curses2keycode(chr, maybe_keycode);
299 /* process keys reserved for qemu */
300 if (keycode >= QEMU_KEY_CONSOLE0 &&
301 keycode < QEMU_KEY_CONSOLE0 + 9) {
303 wnoutrefresh(stdscr);
304 console_select(keycode - QEMU_KEY_CONSOLE0);
314 keysym = curses2keysym(chr, maybe_keycode);
319 if (keysym >= 'A' && keysym <= 'Z')
321 keysym |= KEYSYM_CNTRL;
326 keycode = keysym2scancode(kbd_layout, keysym & KEYSYM_MASK,
331 keycode |= (keysym & ~KEYSYM_MASK) >> 16;
332 keycode |= keycode_alt;
338 if (qemu_console_is_graphic(NULL)) {
339 /* since terminals don't know about key press and release
340 * events, we need to emit both for each key received */
341 if (keycode & SHIFT) {
342 qemu_input_event_send_key_number(NULL, SHIFT_CODE, true);
343 qemu_input_event_send_key_delay(0);
345 if (keycode & CNTRL) {
346 qemu_input_event_send_key_number(NULL, CNTRL_CODE, true);
347 qemu_input_event_send_key_delay(0);
350 qemu_input_event_send_key_number(NULL, ALT_CODE, true);
351 qemu_input_event_send_key_delay(0);
353 if (keycode & ALTGR) {
354 qemu_input_event_send_key_number(NULL, GREY | ALT_CODE, true);
355 qemu_input_event_send_key_delay(0);
358 qemu_input_event_send_key_number(NULL, keycode & KEY_MASK, true);
359 qemu_input_event_send_key_delay(0);
360 qemu_input_event_send_key_number(NULL, keycode & KEY_MASK, false);
361 qemu_input_event_send_key_delay(0);
363 if (keycode & ALTGR) {
364 qemu_input_event_send_key_number(NULL, GREY | ALT_CODE, false);
365 qemu_input_event_send_key_delay(0);
368 qemu_input_event_send_key_number(NULL, ALT_CODE, false);
369 qemu_input_event_send_key_delay(0);
371 if (keycode & CNTRL) {
372 qemu_input_event_send_key_number(NULL, CNTRL_CODE, false);
373 qemu_input_event_send_key_delay(0);
375 if (keycode & SHIFT) {
376 qemu_input_event_send_key_number(NULL, SHIFT_CODE, false);
377 qemu_input_event_send_key_delay(0);
380 keysym = curses2qemu(chr, maybe_keycode);
384 kbd_put_keysym(keysym);
389 static void curses_atexit(void)
394 static void curses_setup(void)
396 int i, colour_default[8] = {
397 [QEMU_COLOR_BLACK] = COLOR_BLACK,
398 [QEMU_COLOR_BLUE] = COLOR_BLUE,
399 [QEMU_COLOR_GREEN] = COLOR_GREEN,
400 [QEMU_COLOR_CYAN] = COLOR_CYAN,
401 [QEMU_COLOR_RED] = COLOR_RED,
402 [QEMU_COLOR_MAGENTA] = COLOR_MAGENTA,
403 [QEMU_COLOR_YELLOW] = COLOR_YELLOW,
404 [QEMU_COLOR_WHITE] = COLOR_WHITE,
407 /* input as raw as possible, let everything be interpreted
408 * by the guest system */
409 initscr(); noecho(); intrflush(stdscr, FALSE);
410 nodelay(stdscr, TRUE); nonl(); keypad(stdscr, TRUE);
411 start_color(); raw(); scrollok(stdscr, FALSE);
414 /* Make color pair to match color format (3bits bg:3bits fg) */
415 for (i = 0; i < 64; i++) {
416 init_pair(i, colour_default[i & 7], colour_default[i >> 3]);
418 /* Set default color for more than 64 for safety. */
419 for (i = 64; i < COLOR_PAIRS; i++) {
420 init_pair(i, COLOR_WHITE, COLOR_BLACK);
424 * Setup mapping for vga to curses line graphics.
425 * FIXME: for better font, have to use ncursesw and setlocale()
428 /* FIXME: map from where? */
434 /* ACS_* is not constant. So, we can't initialize statically. */
435 vga_to_curses['\0'] = ' ';
436 vga_to_curses[0x04] = ACS_DIAMOND;
437 vga_to_curses[0x18] = ACS_UARROW;
438 vga_to_curses[0x19] = ACS_DARROW;
439 vga_to_curses[0x1a] = ACS_RARROW;
440 vga_to_curses[0x1b] = ACS_LARROW;
441 vga_to_curses[0x9c] = ACS_STERLING;
442 vga_to_curses[0xb0] = ACS_BOARD;
443 vga_to_curses[0xb1] = ACS_CKBOARD;
444 vga_to_curses[0xb3] = ACS_VLINE;
445 vga_to_curses[0xb4] = ACS_RTEE;
446 vga_to_curses[0xbf] = ACS_URCORNER;
447 vga_to_curses[0xc0] = ACS_LLCORNER;
448 vga_to_curses[0xc1] = ACS_BTEE;
449 vga_to_curses[0xc2] = ACS_TTEE;
450 vga_to_curses[0xc3] = ACS_LTEE;
451 vga_to_curses[0xc4] = ACS_HLINE;
452 vga_to_curses[0xc5] = ACS_PLUS;
453 vga_to_curses[0xce] = ACS_LANTERN;
454 vga_to_curses[0xd8] = ACS_NEQUAL;
455 vga_to_curses[0xd9] = ACS_LRCORNER;
456 vga_to_curses[0xda] = ACS_ULCORNER;
457 vga_to_curses[0xdb] = ACS_BLOCK;
458 vga_to_curses[0xe3] = ACS_PI;
459 vga_to_curses[0xf1] = ACS_PLMINUS;
460 vga_to_curses[0xf2] = ACS_GEQUAL;
461 vga_to_curses[0xf3] = ACS_LEQUAL;
462 vga_to_curses[0xf8] = ACS_DEGREE;
463 vga_to_curses[0xfe] = ACS_BULLET;
466 static void curses_keyboard_setup(void)
468 #if defined(__APPLE__)
469 /* always use generic keymaps */
470 if (!keyboard_layout)
471 keyboard_layout = "en-us";
473 if(keyboard_layout) {
474 kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout,
479 static const DisplayChangeListenerOps dcl_ops = {
480 .dpy_name = "curses",
481 .dpy_text_update = curses_update,
482 .dpy_text_resize = curses_resize,
483 .dpy_refresh = curses_refresh,
484 .dpy_text_cursor = curses_cursor_position,
487 static void curses_display_init(DisplayState *ds, DisplayOptions *opts)
491 fprintf(stderr, "We need a terminal output\n");
497 curses_keyboard_setup();
498 atexit(curses_atexit);
502 dcl = g_new0(DisplayChangeListener, 1);
504 register_displaychangelistener(dcl);
509 static QemuDisplay qemu_display_curses = {
510 .type = DISPLAY_TYPE_CURSES,
511 .init = curses_display_init,
514 static void register_curses(void)
516 qemu_display_register(&qemu_display_curses);
519 type_init(register_curses);