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1.1 root 1: /*
2: * QEMU curses/ncurses display driver
3: *
4: * Copyright (c) 2005 Andrzej Zaborowski <[email protected]>
5: *
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:
12: *
13: * The above copyright notice and this permission notice shall be included in
14: * all copies or substantial portions of the Software.
15: *
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
22: * THE SOFTWARE.
23: */
24: #include <curses.h>
25:
26: #ifndef _WIN32
27: #include <sys/ioctl.h>
28: #include <termios.h>
29: #endif
30:
31: #ifdef __OpenBSD__
32: #define resize_term resizeterm
33: #endif
34:
35: #include "qemu-common.h"
36: #include "console.h"
37: #include "sysemu.h"
38:
39: #define FONT_HEIGHT 16
40: #define FONT_WIDTH 8
41:
42: static console_ch_t screen[160 * 100];
43: static WINDOW *screenpad = NULL;
44: static int width, height, gwidth, gheight, invalidate;
45: static int px, py, sminx, sminy, smaxx, smaxy;
46:
47: static void curses_update(DisplayState *ds, int x, int y, int w, int h)
48: {
49: chtype *line;
50:
51: line = ((chtype *) screen) + y * width;
52: for (h += y; y < h; y ++, line += width)
53: mvwaddchnstr(screenpad, y, 0, line, width);
54:
55: pnoutrefresh(screenpad, py, px, sminy, sminx, smaxy - 1, smaxx - 1);
56: refresh();
57: }
58:
59: static void curses_calc_pad(void)
60: {
61: if (is_fixedsize_console()) {
62: width = gwidth;
63: height = gheight;
64: } else {
65: width = COLS;
66: height = LINES;
67: }
68:
69: if (screenpad)
70: delwin(screenpad);
71:
72: clear();
73: refresh();
74:
75: screenpad = newpad(height, width);
76:
77: if (width > COLS) {
78: px = (width - COLS) / 2;
79: sminx = 0;
80: smaxx = COLS;
81: } else {
82: px = 0;
83: sminx = (COLS - width) / 2;
84: smaxx = sminx + width;
85: }
86:
87: if (height > LINES) {
88: py = (height - LINES) / 2;
89: sminy = 0;
90: smaxy = LINES;
91: } else {
92: py = 0;
93: sminy = (LINES - height) / 2;
94: smaxy = sminy + height;
95: }
96: }
97:
98: static void curses_resize(DisplayState *ds)
99: {
100: if (ds_get_width(ds) == gwidth && ds_get_height(ds) == gheight)
101: return;
102:
103: gwidth = ds_get_width(ds);
104: gheight = ds_get_height(ds);
105:
106: curses_calc_pad();
107: ds->surface->width = width * FONT_WIDTH;
108: ds->surface->height = height * FONT_HEIGHT;
109: }
110:
111: #ifndef _WIN32
112: #if defined(SIGWINCH) && defined(KEY_RESIZE)
113: static void curses_winch_handler(int signum)
114: {
115: struct winsize {
116: unsigned short ws_row;
117: unsigned short ws_col;
118: unsigned short ws_xpixel; /* unused */
119: unsigned short ws_ypixel; /* unused */
120: } ws;
121:
122: /* terminal size changed */
123: if (ioctl(1, TIOCGWINSZ, &ws) == -1)
124: return;
125:
126: resize_term(ws.ws_row, ws.ws_col);
127: curses_calc_pad();
128: invalidate = 1;
129:
130: /* some systems require this */
131: signal(SIGWINCH, curses_winch_handler);
132: }
133: #endif
134: #endif
135:
136: static void curses_cursor_position(DisplayState *ds, int x, int y)
137: {
138: if (x >= 0) {
139: x = sminx + x - px;
140: y = sminy + y - py;
141:
142: if (x >= 0 && y >= 0 && x < COLS && y < LINES) {
143: move(y, x);
144: curs_set(1);
145: /* it seems that curs_set(1) must always be called before
146: * curs_set(2) for the latter to have effect */
147: if (!is_graphic_console())
148: curs_set(2);
149: return;
150: }
151: }
152:
153: curs_set(0);
154: }
155:
156: /* generic keyboard conversion */
157:
158: #include "curses_keys.h"
159:
160: static kbd_layout_t *kbd_layout = NULL;
161:
162: static void curses_refresh(DisplayState *ds)
163: {
164: int chr, nextchr, keysym, keycode, keycode_alt;
165:
166: if (invalidate) {
167: clear();
168: refresh();
169: curses_calc_pad();
170: ds->surface->width = FONT_WIDTH * width;
171: ds->surface->height = FONT_HEIGHT * height;
172: vga_hw_invalidate();
173: invalidate = 0;
174: }
175:
176: vga_hw_text_update(screen);
177:
178: nextchr = ERR;
179: while (1) {
180: /* while there are any pending key strokes to process */
181: if (nextchr == ERR)
182: chr = getch();
183: else {
184: chr = nextchr;
185: nextchr = ERR;
186: }
187:
188: if (chr == ERR)
189: break;
190:
191: #ifdef KEY_RESIZE
192: /* this shouldn't occur when we use a custom SIGWINCH handler */
193: if (chr == KEY_RESIZE) {
194: clear();
195: refresh();
196: curses_calc_pad();
197: curses_update(ds, 0, 0, width, height);
198: ds->surface->width = FONT_WIDTH * width;
199: ds->surface->height = FONT_HEIGHT * height;
200: continue;
201: }
202: #endif
203:
204: keycode = curses2keycode[chr];
205: keycode_alt = 0;
206:
207: /* alt key */
208: if (keycode == 1) {
209: nextchr = getch();
210:
211: if (nextchr != ERR) {
212: chr = nextchr;
213: keycode_alt = ALT;
214: keycode = curses2keycode[nextchr];
215: nextchr = ERR;
216:
217: if (keycode != -1) {
218: keycode |= ALT;
219:
220: /* process keys reserved for qemu */
221: if (keycode >= QEMU_KEY_CONSOLE0 &&
222: keycode < QEMU_KEY_CONSOLE0 + 9) {
223: erase();
224: wnoutrefresh(stdscr);
225: console_select(keycode - QEMU_KEY_CONSOLE0);
226:
227: invalidate = 1;
228: continue;
229: }
230: }
231: }
232: }
233:
234: if (kbd_layout) {
235: keysym = -1;
236: if (chr < CURSES_KEYS)
237: keysym = curses2keysym[chr];
238:
239: if (keysym == -1) {
1.1.1.2 root 240: if (chr < ' ') {
241: keysym = chr + '@';
242: if (keysym >= 'A' && keysym <= 'Z')
243: keysym += 'a' - 'A';
244: keysym |= KEYSYM_CNTRL;
245: } else
1.1 root 246: keysym = chr;
247: }
248:
249: keycode = keysym2scancode(kbd_layout, keysym & KEYSYM_MASK);
250: if (keycode == 0)
251: continue;
252:
253: keycode |= (keysym & ~KEYSYM_MASK) >> 16;
254: keycode |= keycode_alt;
255: }
256:
257: if (keycode == -1)
258: continue;
259:
260: if (is_graphic_console()) {
261: /* since terminals don't know about key press and release
262: * events, we need to emit both for each key received */
263: if (keycode & SHIFT)
264: kbd_put_keycode(SHIFT_CODE);
265: if (keycode & CNTRL)
266: kbd_put_keycode(CNTRL_CODE);
267: if (keycode & ALT)
268: kbd_put_keycode(ALT_CODE);
269: if (keycode & ALTGR) {
270: kbd_put_keycode(SCANCODE_EMUL0);
271: kbd_put_keycode(ALT_CODE);
272: }
273: if (keycode & GREY)
274: kbd_put_keycode(GREY_CODE);
275: kbd_put_keycode(keycode & KEY_MASK);
276: if (keycode & GREY)
277: kbd_put_keycode(GREY_CODE);
278: kbd_put_keycode((keycode & KEY_MASK) | KEY_RELEASE);
279: if (keycode & ALTGR) {
280: kbd_put_keycode(SCANCODE_EMUL0);
281: kbd_put_keycode(ALT_CODE | KEY_RELEASE);
282: }
283: if (keycode & ALT)
284: kbd_put_keycode(ALT_CODE | KEY_RELEASE);
285: if (keycode & CNTRL)
286: kbd_put_keycode(CNTRL_CODE | KEY_RELEASE);
287: if (keycode & SHIFT)
288: kbd_put_keycode(SHIFT_CODE | KEY_RELEASE);
289: } else {
290: keysym = curses2qemu[chr];
291: if (keysym == -1)
292: keysym = chr;
293:
294: kbd_put_keysym(keysym);
295: }
296: }
297: }
298:
299: static void curses_atexit(void)
300: {
301: endwin();
302: }
303:
304: static void curses_setup(void)
305: {
306: int i, colour_default[8] = {
307: COLOR_BLACK, COLOR_BLUE, COLOR_GREEN, COLOR_CYAN,
308: COLOR_RED, COLOR_MAGENTA, COLOR_YELLOW, COLOR_WHITE,
309: };
310:
311: /* input as raw as possible, let everything be interpreted
312: * by the guest system */
313: initscr(); noecho(); intrflush(stdscr, FALSE);
314: nodelay(stdscr, TRUE); nonl(); keypad(stdscr, TRUE);
315: start_color(); raw(); scrollok(stdscr, FALSE);
316:
317: for (i = 0; i < 64; i ++)
318: init_pair(i, colour_default[i & 7], colour_default[i >> 3]);
319: }
320:
321: static void curses_keyboard_setup(void)
322: {
323: #if defined(__APPLE__)
324: /* always use generic keymaps */
325: if (!keyboard_layout)
326: keyboard_layout = "en-us";
327: #endif
328: if(keyboard_layout) {
329: kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout);
330: if (!kbd_layout)
331: exit(1);
332: }
333: }
334:
335: void curses_display_init(DisplayState *ds, int full_screen)
336: {
337: DisplayChangeListener *dcl;
338: #ifndef _WIN32
339: if (!isatty(1)) {
340: fprintf(stderr, "We need a terminal output\n");
341: exit(1);
342: }
343: #endif
344:
345: curses_setup();
346: curses_keyboard_setup();
347: atexit(curses_atexit);
348:
349: #ifndef _WIN32
350: #if defined(SIGWINCH) && defined(KEY_RESIZE)
351: /* some curses implementations provide a handler, but we
352: * want to be sure this is handled regardless of the library */
353: signal(SIGWINCH, curses_winch_handler);
354: #endif
355: #endif
356:
357: dcl = (DisplayChangeListener *) qemu_mallocz(sizeof(DisplayChangeListener));
358: dcl->dpy_update = curses_update;
359: dcl->dpy_resize = curses_resize;
360: dcl->dpy_refresh = curses_refresh;
361: dcl->dpy_text_cursor = curses_cursor_position;
362: register_displaychangelistener(ds, dcl);
363: qemu_free_displaysurface(ds);
364: ds->surface = qemu_create_displaysurface_from(640, 400, 0, 0, (uint8_t*) screen);
365:
366: invalidate = 1;
367: }
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