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 console_ch_t screen[160 * 100];
39 static WINDOW *screenpad = NULL;
40 static int width, height, gwidth, gheight, invalidate;
41 static int px, py, sminx, sminy, smaxx, smaxy;
43 static void curses_update(DisplayState *ds, int x, int y, int w, int h)
47 line = ((chtype *) screen) + y * width;
48 for (h += y; y < h; y ++, line += width)
49 mvwaddchnstr(screenpad, y, 0, line, width);
51 pnoutrefresh(screenpad, py, px, sminy, sminx, smaxy - 1, smaxx - 1);
55 static void curses_calc_pad(void)
57 if (is_fixedsize_console()) {
71 screenpad = newpad(height, width);
74 px = (width - COLS) / 2;
79 sminx = (COLS - width) / 2;
80 smaxx = sminx + width;
84 py = (height - LINES) / 2;
89 sminy = (LINES - height) / 2;
90 smaxy = sminy + height;
94 static void curses_resize(DisplayState *ds, int width, int height)
96 if (width == gwidth && height == gheight) {
107 #if defined(SIGWINCH) && defined(KEY_RESIZE)
108 static void curses_winch_handler(int signum)
111 unsigned short ws_row;
112 unsigned short ws_col;
113 unsigned short ws_xpixel; /* unused */
114 unsigned short ws_ypixel; /* unused */
117 /* terminal size changed */
118 if (ioctl(1, TIOCGWINSZ, &ws) == -1)
121 resize_term(ws.ws_row, ws.ws_col);
125 /* some systems require this */
126 signal(SIGWINCH, curses_winch_handler);
131 static void curses_cursor_position(DisplayState *ds, int x, int y)
137 if (x >= 0 && y >= 0 && x < COLS && y < LINES) {
140 /* it seems that curs_set(1) must always be called before
141 * curs_set(2) for the latter to have effect */
142 if (!is_graphic_console())
151 /* generic keyboard conversion */
153 #include "curses_keys.h"
155 static kbd_layout_t *kbd_layout = NULL;
157 static void curses_refresh(DisplayState *ds)
159 int chr, nextchr, keysym, keycode, keycode_alt;
169 vga_hw_text_update(screen);
173 /* while there are any pending key strokes to process */
185 /* this shouldn't occur when we use a custom SIGWINCH handler */
186 if (chr == KEY_RESIZE) {
190 curses_update(ds, 0, 0, width, height);
195 keycode = curses2keycode[chr];
202 if (nextchr != ERR) {
205 keycode = curses2keycode[nextchr];
211 /* process keys reserved for qemu */
212 if (keycode >= QEMU_KEY_CONSOLE0 &&
213 keycode < QEMU_KEY_CONSOLE0 + 9) {
215 wnoutrefresh(stdscr);
216 console_select(keycode - QEMU_KEY_CONSOLE0);
227 if (chr < CURSES_KEYS)
228 keysym = curses2keysym[chr];
233 if (keysym >= 'A' && keysym <= 'Z')
235 keysym |= KEYSYM_CNTRL;
240 keycode = keysym2scancode(kbd_layout, keysym & KEYSYM_MASK);
244 keycode |= (keysym & ~KEYSYM_MASK) >> 16;
245 keycode |= keycode_alt;
251 if (is_graphic_console()) {
252 /* since terminals don't know about key press and release
253 * events, we need to emit both for each key received */
255 kbd_put_keycode(SHIFT_CODE);
257 kbd_put_keycode(CNTRL_CODE);
259 kbd_put_keycode(ALT_CODE);
260 if (keycode & ALTGR) {
261 kbd_put_keycode(SCANCODE_EMUL0);
262 kbd_put_keycode(ALT_CODE);
265 kbd_put_keycode(GREY_CODE);
266 kbd_put_keycode(keycode & KEY_MASK);
268 kbd_put_keycode(GREY_CODE);
269 kbd_put_keycode((keycode & KEY_MASK) | KEY_RELEASE);
270 if (keycode & ALTGR) {
271 kbd_put_keycode(SCANCODE_EMUL0);
272 kbd_put_keycode(ALT_CODE | KEY_RELEASE);
275 kbd_put_keycode(ALT_CODE | KEY_RELEASE);
277 kbd_put_keycode(CNTRL_CODE | KEY_RELEASE);
279 kbd_put_keycode(SHIFT_CODE | KEY_RELEASE);
281 keysym = curses2qemu[chr];
285 kbd_put_keysym(keysym);
290 static void curses_atexit(void)
295 static void curses_setup(void)
297 int i, colour_default[8] = {
298 COLOR_BLACK, COLOR_BLUE, COLOR_GREEN, COLOR_CYAN,
299 COLOR_RED, COLOR_MAGENTA, COLOR_YELLOW, COLOR_WHITE,
302 /* input as raw as possible, let everything be interpreted
303 * by the guest system */
304 initscr(); noecho(); intrflush(stdscr, FALSE);
305 nodelay(stdscr, TRUE); nonl(); keypad(stdscr, TRUE);
306 start_color(); raw(); scrollok(stdscr, FALSE);
308 for (i = 0; i < 64; i ++)
309 init_pair(i, colour_default[i & 7], colour_default[i >> 3]);
312 static void curses_keyboard_setup(void)
314 #if defined(__APPLE__)
315 /* always use generic keymaps */
316 if (!keyboard_layout)
317 keyboard_layout = "en-us";
319 if(keyboard_layout) {
320 kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout);
326 void curses_display_init(DisplayState *ds, int full_screen)
328 DisplayChangeListener *dcl;
331 fprintf(stderr, "We need a terminal output\n");
337 curses_keyboard_setup();
338 atexit(curses_atexit);
341 #if defined(SIGWINCH) && defined(KEY_RESIZE)
342 /* some curses implementations provide a handler, but we
343 * want to be sure this is handled regardless of the library */
344 signal(SIGWINCH, curses_winch_handler);
348 dcl = (DisplayChangeListener *) g_malloc0(sizeof(DisplayChangeListener));
349 dcl->dpy_text_update = curses_update;
350 dcl->dpy_text_resize = curses_resize;
351 dcl->dpy_refresh = curses_refresh;
352 dcl->dpy_text_cursor = curses_cursor_position;
353 register_displaychangelistener(ds, dcl);