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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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) {
110 #if defined(SIGWINCH) && defined(KEY_RESIZE)
111 static void curses_winch_handler(int signum)
114 unsigned short ws_row;
115 unsigned short ws_col;
116 unsigned short ws_xpixel; /* unused */
117 unsigned short ws_ypixel; /* unused */
120 /* terminal size changed */
121 if (ioctl(1, TIOCGWINSZ, &ws) == -1)
124 resize_term(ws.ws_row, ws.ws_col);
128 /* some systems require this */
129 signal(SIGWINCH, curses_winch_handler);
134 static void curses_cursor_position(DisplayChangeListener *dcl,
141 if (x >= 0 && y >= 0 && x < COLS && y < LINES) {
144 /* it seems that curs_set(1) must always be called before
145 * curs_set(2) for the latter to have effect */
146 if (!qemu_console_is_graphic(NULL)) {
156 /* generic keyboard conversion */
158 #include "curses_keys.h"
160 static kbd_layout_t *kbd_layout = NULL;
162 static void curses_refresh(DisplayChangeListener *dcl)
164 int chr, nextchr, keysym, keycode, keycode_alt;
170 graphic_hw_invalidate(NULL);
174 graphic_hw_text_update(NULL, screen);
178 /* while there are any pending key strokes to process */
190 /* this shouldn't occur when we use a custom SIGWINCH handler */
191 if (chr == KEY_RESIZE) {
195 curses_update(dcl, 0, 0, width, height);
200 keycode = curses2keycode[chr];
207 if (nextchr != ERR) {
210 keycode = curses2keycode[nextchr];
216 /* process keys reserved for qemu */
217 if (keycode >= QEMU_KEY_CONSOLE0 &&
218 keycode < QEMU_KEY_CONSOLE0 + 9) {
220 wnoutrefresh(stdscr);
221 console_select(keycode - QEMU_KEY_CONSOLE0);
232 if (chr < CURSES_KEYS)
233 keysym = curses2keysym[chr];
238 if (keysym >= 'A' && keysym <= 'Z')
240 keysym |= KEYSYM_CNTRL;
245 keycode = keysym2scancode(kbd_layout, keysym & KEYSYM_MASK);
249 keycode |= (keysym & ~KEYSYM_MASK) >> 16;
250 keycode |= keycode_alt;
256 if (qemu_console_is_graphic(NULL)) {
257 /* since terminals don't know about key press and release
258 * events, we need to emit both for each key received */
260 kbd_put_keycode(SHIFT_CODE);
262 kbd_put_keycode(CNTRL_CODE);
264 kbd_put_keycode(ALT_CODE);
265 if (keycode & ALTGR) {
266 kbd_put_keycode(SCANCODE_EMUL0);
267 kbd_put_keycode(ALT_CODE);
270 kbd_put_keycode(GREY_CODE);
271 kbd_put_keycode(keycode & KEY_MASK);
273 kbd_put_keycode(GREY_CODE);
274 kbd_put_keycode((keycode & KEY_MASK) | KEY_RELEASE);
275 if (keycode & ALTGR) {
276 kbd_put_keycode(SCANCODE_EMUL0);
277 kbd_put_keycode(ALT_CODE | KEY_RELEASE);
280 kbd_put_keycode(ALT_CODE | KEY_RELEASE);
282 kbd_put_keycode(CNTRL_CODE | KEY_RELEASE);
284 kbd_put_keycode(SHIFT_CODE | KEY_RELEASE);
286 keysym = curses2qemu[chr];
290 kbd_put_keysym(keysym);
295 static void curses_atexit(void)
300 static void curses_setup(void)
302 int i, colour_default[8] = {
303 COLOR_BLACK, COLOR_BLUE, COLOR_GREEN, COLOR_CYAN,
304 COLOR_RED, COLOR_MAGENTA, COLOR_YELLOW, COLOR_WHITE,
307 /* input as raw as possible, let everything be interpreted
308 * by the guest system */
309 initscr(); noecho(); intrflush(stdscr, FALSE);
310 nodelay(stdscr, TRUE); nonl(); keypad(stdscr, TRUE);
311 start_color(); raw(); scrollok(stdscr, FALSE);
313 for (i = 0; i < 64; i ++)
314 init_pair(i, colour_default[i & 7], colour_default[i >> 3]);
317 static void curses_keyboard_setup(void)
319 #if defined(__APPLE__)
320 /* always use generic keymaps */
321 if (!keyboard_layout)
322 keyboard_layout = "en-us";
324 if(keyboard_layout) {
325 kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout);
331 static const DisplayChangeListenerOps dcl_ops = {
332 .dpy_name = "curses",
333 .dpy_text_update = curses_update,
334 .dpy_text_resize = curses_resize,
335 .dpy_refresh = curses_refresh,
336 .dpy_text_cursor = curses_cursor_position,
339 void curses_display_init(DisplayState *ds, int full_screen)
343 fprintf(stderr, "We need a terminal output\n");
349 curses_keyboard_setup();
350 atexit(curses_atexit);
353 #if defined(SIGWINCH) && defined(KEY_RESIZE)
354 /* some curses implementations provide a handler, but we
355 * want to be sure this is handled regardless of the library */
356 signal(SIGWINCH, curses_winch_handler);
360 dcl = (DisplayChangeListener *) g_malloc0(sizeof(DisplayChangeListener));
362 register_displaychangelistener(dcl);