2 * QEMU curses/ncurses display driver
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16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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27 #include <sys/ioctl.h>
31 #include "qemu-common.h"
32 #include "ui/console.h"
33 #include "sysemu/sysemu.h"
35 #define FONT_HEIGHT 16
38 static DisplayChangeListener *dcl;
39 static console_ch_t screen[160 * 100];
40 static WINDOW *screenpad = NULL;
41 static int width, height, gwidth, gheight, invalidate;
42 static int px, py, sminx, sminy, smaxx, smaxy;
44 static void curses_update(DisplayChangeListener *dcl,
45 int x, int y, int w, int h)
49 line = ((chtype *) screen) + y * width;
50 for (h += y; y < h; y ++, line += width)
51 mvwaddchnstr(screenpad, y, 0, line, width);
53 pnoutrefresh(screenpad, py, px, sminy, sminx, smaxy - 1, smaxx - 1);
57 static void curses_calc_pad(void)
59 if (qemu_console_is_fixedsize(NULL)) {
73 screenpad = newpad(height, width);
76 px = (width - COLS) / 2;
81 sminx = (COLS - width) / 2;
82 smaxx = sminx + width;
86 py = (height - LINES) / 2;
91 sminy = (LINES - height) / 2;
92 smaxy = sminy + height;
96 static void curses_resize(DisplayChangeListener *dcl,
97 int width, int height)
99 if (width == gwidth && height == gheight) {
109 #if !defined(_WIN32) && defined(SIGWINCH) && defined(KEY_RESIZE)
110 static volatile sig_atomic_t got_sigwinch;
111 static void curses_winch_check(void)
114 unsigned short ws_row;
115 unsigned short ws_col;
116 unsigned short ws_xpixel; /* unused */
117 unsigned short ws_ypixel; /* unused */
123 got_sigwinch = false;
125 if (ioctl(1, TIOCGWINSZ, &ws) == -1) {
129 resize_term(ws.ws_row, ws.ws_col);
133 static void curses_winch_handler(int signum)
138 static void curses_winch_init(void)
140 struct sigaction old, winch = {
141 .sa_handler = curses_winch_handler,
143 sigaction(SIGWINCH, &winch, &old);
146 static void curses_winch_check(void) {}
147 static void curses_winch_init(void) {}
150 static void curses_cursor_position(DisplayChangeListener *dcl,
157 if (x >= 0 && y >= 0 && x < COLS && y < LINES) {
160 /* it seems that curs_set(1) must always be called before
161 * curs_set(2) for the latter to have effect */
162 if (!qemu_console_is_graphic(NULL)) {
172 /* generic keyboard conversion */
174 #include "curses_keys.h"
176 static kbd_layout_t *kbd_layout = NULL;
178 static void curses_refresh(DisplayChangeListener *dcl)
180 int chr, nextchr, keysym, keycode, keycode_alt;
182 curses_winch_check();
188 graphic_hw_invalidate(NULL);
192 graphic_hw_text_update(NULL, screen);
196 /* while there are any pending key strokes to process */
208 /* this shouldn't occur when we use a custom SIGWINCH handler */
209 if (chr == KEY_RESIZE) {
213 curses_update(dcl, 0, 0, width, height);
218 keycode = curses2keycode[chr];
225 if (nextchr != ERR) {
228 keycode = curses2keycode[nextchr];
234 /* process keys reserved for qemu */
235 if (keycode >= QEMU_KEY_CONSOLE0 &&
236 keycode < QEMU_KEY_CONSOLE0 + 9) {
238 wnoutrefresh(stdscr);
239 console_select(keycode - QEMU_KEY_CONSOLE0);
250 if (chr < CURSES_KEYS)
251 keysym = curses2keysym[chr];
256 if (keysym >= 'A' && keysym <= 'Z')
258 keysym |= KEYSYM_CNTRL;
263 keycode = keysym2scancode(kbd_layout, keysym & KEYSYM_MASK);
267 keycode |= (keysym & ~KEYSYM_MASK) >> 16;
268 keycode |= keycode_alt;
274 if (qemu_console_is_graphic(NULL)) {
275 /* since terminals don't know about key press and release
276 * events, we need to emit both for each key received */
278 kbd_put_keycode(SHIFT_CODE);
280 kbd_put_keycode(CNTRL_CODE);
282 kbd_put_keycode(ALT_CODE);
283 if (keycode & ALTGR) {
284 kbd_put_keycode(SCANCODE_EMUL0);
285 kbd_put_keycode(ALT_CODE);
288 kbd_put_keycode(GREY_CODE);
289 kbd_put_keycode(keycode & KEY_MASK);
291 kbd_put_keycode(GREY_CODE);
292 kbd_put_keycode((keycode & KEY_MASK) | KEY_RELEASE);
293 if (keycode & ALTGR) {
294 kbd_put_keycode(SCANCODE_EMUL0);
295 kbd_put_keycode(ALT_CODE | KEY_RELEASE);
298 kbd_put_keycode(ALT_CODE | KEY_RELEASE);
300 kbd_put_keycode(CNTRL_CODE | KEY_RELEASE);
302 kbd_put_keycode(SHIFT_CODE | KEY_RELEASE);
304 keysym = curses2qemu[chr];
308 kbd_put_keysym(keysym);
313 static void curses_atexit(void)
318 static void curses_setup(void)
320 int i, colour_default[8] = {
321 COLOR_BLACK, COLOR_BLUE, COLOR_GREEN, COLOR_CYAN,
322 COLOR_RED, COLOR_MAGENTA, COLOR_YELLOW, COLOR_WHITE,
325 /* input as raw as possible, let everything be interpreted
326 * by the guest system */
327 initscr(); noecho(); intrflush(stdscr, FALSE);
328 nodelay(stdscr, TRUE); nonl(); keypad(stdscr, TRUE);
329 start_color(); raw(); scrollok(stdscr, FALSE);
331 for (i = 0; i < 64; i ++)
332 init_pair(i, colour_default[i & 7], colour_default[i >> 3]);
335 static void curses_keyboard_setup(void)
337 #if defined(__APPLE__)
338 /* always use generic keymaps */
339 if (!keyboard_layout)
340 keyboard_layout = "en-us";
342 if(keyboard_layout) {
343 kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout);
349 static const DisplayChangeListenerOps dcl_ops = {
350 .dpy_name = "curses",
351 .dpy_text_update = curses_update,
352 .dpy_text_resize = curses_resize,
353 .dpy_refresh = curses_refresh,
354 .dpy_text_cursor = curses_cursor_position,
357 void curses_display_init(DisplayState *ds, int full_screen)
361 fprintf(stderr, "We need a terminal output\n");
367 curses_keyboard_setup();
368 atexit(curses_atexit);
372 dcl = (DisplayChangeListener *) g_malloc0(sizeof(DisplayChangeListener));
374 register_displaychangelistener(dcl);