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
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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
25 #include "qemu-common.h"
33 #include <sys/ioctl.h>
38 #define resize_term resizeterm
41 #define FONT_HEIGHT 16
44 static console_ch_t screen[160 * 100];
45 static WINDOW *screenpad = NULL;
46 static int width, height, gwidth, gheight, invalidate;
47 static int px, py, sminx, sminy, smaxx, smaxy;
49 static void curses_update(DisplayState *ds, 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 (is_fixedsize_console()) {
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(DisplayState *ds)
102 if (ds_get_width(ds) == gwidth && ds_get_height(ds) == gheight)
105 gwidth = ds_get_width(ds);
106 gheight = ds_get_height(ds);
109 ds->surface->width = width * FONT_WIDTH;
110 ds->surface->height = height * FONT_HEIGHT;
114 #if defined(SIGWINCH) && defined(KEY_RESIZE)
115 static void curses_winch_handler(int signum)
118 unsigned short ws_row;
119 unsigned short ws_col;
120 unsigned short ws_xpixel; /* unused */
121 unsigned short ws_ypixel; /* unused */
124 /* terminal size changed */
125 if (ioctl(1, TIOCGWINSZ, &ws) == -1)
128 resize_term(ws.ws_row, ws.ws_col);
132 /* some systems require this */
133 signal(SIGWINCH, curses_winch_handler);
138 static void curses_cursor_position(DisplayState *ds, int x, int y)
144 if (x >= 0 && y >= 0 && x < COLS && y < LINES) {
147 /* it seems that curs_set(1) must always be called before
148 * curs_set(2) for the latter to have effect */
149 if (!is_graphic_console())
158 /* generic keyboard conversion */
160 #include "curses_keys.h"
163 static kbd_layout_t *kbd_layout = 0;
164 static int keycode2keysym[CURSES_KEYS];
166 static void curses_refresh(DisplayState *ds)
168 int chr, nextchr, keysym, keycode;
174 ds->surface->width = FONT_WIDTH * width;
175 ds->surface->height = FONT_HEIGHT * height;
180 vga_hw_text_update(screen);
184 /* while there are any pending key strokes to process */
196 /* this shouldn't occur when we use a custom SIGWINCH handler */
197 if (chr == KEY_RESIZE) {
201 curses_update(ds, 0, 0, width, height);
202 ds->surface->width = FONT_WIDTH * width;
203 ds->surface->height = FONT_HEIGHT * height;
208 keycode = curses2keycode[chr];
216 if (nextchr != ERR) {
217 keycode = curses2keycode[nextchr];
224 /* process keys reserved for qemu */
225 if (keycode >= QEMU_KEY_CONSOLE0 &&
226 keycode < QEMU_KEY_CONSOLE0 + 9) {
228 wnoutrefresh(stdscr);
229 console_select(keycode - QEMU_KEY_CONSOLE0);
237 if (kbd_layout && !(keycode & GREY)) {
238 keysym = keycode2keysym[keycode & KEY_MASK];
242 keycode &= ~KEY_MASK;
243 keycode |= keysym2scancode(kbd_layout, keysym);
246 if (is_graphic_console()) {
247 /* since terminals don't know about key press and release
248 * events, we need to emit both for each key received */
250 kbd_put_keycode(SHIFT_CODE);
252 kbd_put_keycode(CNTRL_CODE);
254 kbd_put_keycode(ALT_CODE);
256 kbd_put_keycode(GREY_CODE);
257 kbd_put_keycode(keycode & KEY_MASK);
259 kbd_put_keycode(GREY_CODE);
260 kbd_put_keycode((keycode & KEY_MASK) | KEY_RELEASE);
262 kbd_put_keycode(ALT_CODE | KEY_RELEASE);
264 kbd_put_keycode(CNTRL_CODE | KEY_RELEASE);
266 kbd_put_keycode(SHIFT_CODE | KEY_RELEASE);
268 keysym = curses2keysym[chr];
272 kbd_put_keysym(keysym);
277 static void curses_cleanup(void *opaque)
282 static void curses_atexit(void)
284 curses_cleanup(NULL);
287 static void curses_setup(void)
289 int i, colour_default[8] = {
290 COLOR_BLACK, COLOR_BLUE, COLOR_GREEN, COLOR_CYAN,
291 COLOR_RED, COLOR_MAGENTA, COLOR_YELLOW, COLOR_WHITE,
294 /* input as raw as possible, let everything be interpreted
295 * by the guest system */
296 initscr(); noecho(); intrflush(stdscr, FALSE);
297 nodelay(stdscr, TRUE); nonl(); keypad(stdscr, TRUE);
298 start_color(); raw(); scrollok(stdscr, FALSE);
300 for (i = 0; i < 64; i ++)
301 init_pair(i, colour_default[i & 7], colour_default[i >> 3]);
304 static void curses_keyboard_setup(void)
306 int i, keycode, keysym;
308 #if defined(__APPLE__)
309 /* always use generic keymaps */
310 if (!keyboard_layout)
311 keyboard_layout = "en-us";
313 if(keyboard_layout) {
314 kbd_layout = init_keyboard_layout(keyboard_layout);
319 for (i = 0; i < CURSES_KEYS; i ++)
320 keycode2keysym[i] = -1;
322 for (i = 0; i < CURSES_KEYS; i ++) {
323 if (curses2keycode[i] == -1)
326 keycode = curses2keycode[i] & KEY_MASK;
327 if (keycode2keysym[keycode] >= 0)
330 for (keysym = 0; keysym < CURSES_KEYS; keysym ++)
331 if (curses2keycode[keysym] == keycode) {
332 keycode2keysym[keycode] = keysym;
336 if (keysym >= CURSES_KEYS)
337 keycode2keysym[keycode] = i;
341 void curses_display_init(DisplayState *ds, int full_screen)
343 DisplayChangeListener *dcl;
346 fprintf(stderr, "We need a terminal output\n");
352 curses_keyboard_setup();
353 atexit(curses_atexit);
356 #if defined(SIGWINCH) && defined(KEY_RESIZE)
357 /* some curses implementations provide a handler, but we
358 * want to be sure this is handled regardless of the library */
359 signal(SIGWINCH, curses_winch_handler);
363 dcl = (DisplayChangeListener *) qemu_mallocz(sizeof(DisplayChangeListener));
364 dcl->dpy_update = curses_update;
365 dcl->dpy_resize = curses_resize;
366 dcl->dpy_refresh = curses_refresh;
367 dcl->dpy_text_cursor = curses_cursor_position;
368 register_displaychangelistener(ds, dcl);
369 qemu_free_displaysurface(ds->surface);
370 ds->surface = qemu_create_displaysurface_from(640, 400, 0, 0, (uint8_t*) screen);
374 /* Standard VGA initial text mode dimensions */