| /* |
| * QEMU curses/ncurses display driver |
| * |
| * Copyright (c) 2005 Andrzej Zaborowski <balrog@zabor.org> |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| * THE SOFTWARE. |
| */ |
| #include "qemu/osdep.h" |
| |
| #ifndef _WIN32 |
| #include <sys/ioctl.h> |
| #include <termios.h> |
| #endif |
| |
| #include "qapi/error.h" |
| #include "qemu-common.h" |
| #include "ui/console.h" |
| #include "ui/input.h" |
| #include "sysemu/sysemu.h" |
| |
| /* KEY_EVENT is defined in wincon.h and in curses.h. Avoid redefinition. */ |
| #undef KEY_EVENT |
| #include <curses.h> |
| #undef KEY_EVENT |
| |
| #define FONT_HEIGHT 16 |
| #define FONT_WIDTH 8 |
| |
| enum maybe_keycode { |
| CURSES_KEYCODE, |
| CURSES_CHAR, |
| CURSES_CHAR_OR_KEYCODE, |
| }; |
| |
| static DisplayChangeListener *dcl; |
| static console_ch_t screen[160 * 100]; |
| static WINDOW *screenpad = NULL; |
| static int width, height, gwidth, gheight, invalidate; |
| static int px, py, sminx, sminy, smaxx, smaxy; |
| |
| static chtype vga_to_curses[256]; |
| |
| static void curses_update(DisplayChangeListener *dcl, |
| int x, int y, int w, int h) |
| { |
| console_ch_t *line; |
| chtype curses_line[width]; |
| |
| line = screen + y * width; |
| for (h += y; y < h; y ++, line += width) { |
| for (x = 0; x < width; x++) { |
| chtype ch = line[x] & 0xff; |
| chtype at = line[x] & ~0xff; |
| if (vga_to_curses[ch]) { |
| ch = vga_to_curses[ch]; |
| } |
| curses_line[x] = ch | at; |
| } |
| mvwaddchnstr(screenpad, y, 0, curses_line, width); |
| } |
| |
| pnoutrefresh(screenpad, py, px, sminy, sminx, smaxy - 1, smaxx - 1); |
| refresh(); |
| } |
| |
| static void curses_calc_pad(void) |
| { |
| if (qemu_console_is_fixedsize(NULL)) { |
| width = gwidth; |
| height = gheight; |
| } else { |
| width = COLS; |
| height = LINES; |
| } |
| |
| if (screenpad) |
| delwin(screenpad); |
| |
| clear(); |
| refresh(); |
| |
| screenpad = newpad(height, width); |
| |
| if (width > COLS) { |
| px = (width - COLS) / 2; |
| sminx = 0; |
| smaxx = COLS; |
| } else { |
| px = 0; |
| sminx = (COLS - width) / 2; |
| smaxx = sminx + width; |
| } |
| |
| if (height > LINES) { |
| py = (height - LINES) / 2; |
| sminy = 0; |
| smaxy = LINES; |
| } else { |
| py = 0; |
| sminy = (LINES - height) / 2; |
| smaxy = sminy + height; |
| } |
| } |
| |
| static void curses_resize(DisplayChangeListener *dcl, |
| int width, int height) |
| { |
| if (width == gwidth && height == gheight) { |
| return; |
| } |
| |
| gwidth = width; |
| gheight = height; |
| |
| curses_calc_pad(); |
| } |
| |
| #if !defined(_WIN32) && defined(SIGWINCH) && defined(KEY_RESIZE) |
| static volatile sig_atomic_t got_sigwinch; |
| static void curses_winch_check(void) |
| { |
| struct winsize { |
| unsigned short ws_row; |
| unsigned short ws_col; |
| unsigned short ws_xpixel; /* unused */ |
| unsigned short ws_ypixel; /* unused */ |
| } ws; |
| |
| if (!got_sigwinch) { |
| return; |
| } |
| got_sigwinch = false; |
| |
| if (ioctl(1, TIOCGWINSZ, &ws) == -1) { |
| return; |
| } |
| |
| resize_term(ws.ws_row, ws.ws_col); |
| invalidate = 1; |
| } |
| |
| static void curses_winch_handler(int signum) |
| { |
| got_sigwinch = true; |
| } |
| |
| static void curses_winch_init(void) |
| { |
| struct sigaction old, winch = { |
| .sa_handler = curses_winch_handler, |
| }; |
| sigaction(SIGWINCH, &winch, &old); |
| } |
| #else |
| static void curses_winch_check(void) {} |
| static void curses_winch_init(void) {} |
| #endif |
| |
| static void curses_cursor_position(DisplayChangeListener *dcl, |
| int x, int y) |
| { |
| if (x >= 0) { |
| x = sminx + x - px; |
| y = sminy + y - py; |
| |
| if (x >= 0 && y >= 0 && x < COLS && y < LINES) { |
| move(y, x); |
| curs_set(1); |
| /* it seems that curs_set(1) must always be called before |
| * curs_set(2) for the latter to have effect */ |
| if (!qemu_console_is_graphic(NULL)) { |
| curs_set(2); |
| } |
| return; |
| } |
| } |
| |
| curs_set(0); |
| } |
| |
| /* generic keyboard conversion */ |
| |
| #include "curses_keys.h" |
| |
| static kbd_layout_t *kbd_layout = NULL; |
| |
| static wint_t console_getch(enum maybe_keycode *maybe_keycode) |
| { |
| wint_t ret; |
| switch (get_wch(&ret)) { |
| case KEY_CODE_YES: |
| *maybe_keycode = CURSES_KEYCODE; |
| break; |
| case OK: |
| *maybe_keycode = CURSES_CHAR; |
| break; |
| case ERR: |
| ret = -1; |
| break; |
| } |
| return ret; |
| } |
| |
| static int curses2foo(const int _curses2foo[], const int _curseskey2foo[], |
| int chr, enum maybe_keycode maybe_keycode) |
| { |
| int ret = -1; |
| if (maybe_keycode == CURSES_CHAR) { |
| if (chr < CURSES_CHARS) { |
| ret = _curses2foo[chr]; |
| } |
| } else { |
| if (chr < CURSES_KEYS) { |
| ret = _curseskey2foo[chr]; |
| } |
| if (ret == -1 && maybe_keycode == CURSES_CHAR_OR_KEYCODE && |
| chr < CURSES_CHARS) { |
| ret = _curses2foo[chr]; |
| } |
| } |
| return ret; |
| } |
| |
| #define curses2keycode(chr, maybe_keycode) \ |
| curses2foo(_curses2keycode, _curseskey2keycode, chr, maybe_keycode) |
| #define curses2keysym(chr, maybe_keycode) \ |
| curses2foo(_curses2keysym, _curseskey2keysym, chr, maybe_keycode) |
| #define curses2qemu(chr, maybe_keycode) \ |
| curses2foo(_curses2qemu, _curseskey2qemu, chr, maybe_keycode) |
| |
| static void curses_refresh(DisplayChangeListener *dcl) |
| { |
| int chr, keysym, keycode, keycode_alt; |
| enum maybe_keycode maybe_keycode; |
| |
| curses_winch_check(); |
| |
| if (invalidate) { |
| clear(); |
| refresh(); |
| curses_calc_pad(); |
| graphic_hw_invalidate(NULL); |
| invalidate = 0; |
| } |
| |
| graphic_hw_text_update(NULL, screen); |
| |
| while (1) { |
| /* while there are any pending key strokes to process */ |
| chr = console_getch(&maybe_keycode); |
| |
| if (chr == -1) |
| break; |
| |
| #ifdef KEY_RESIZE |
| /* this shouldn't occur when we use a custom SIGWINCH handler */ |
| if (maybe_keycode != CURSES_CHAR && chr == KEY_RESIZE) { |
| clear(); |
| refresh(); |
| curses_calc_pad(); |
| curses_update(dcl, 0, 0, width, height); |
| continue; |
| } |
| #endif |
| |
| keycode = curses2keycode(chr, maybe_keycode); |
| keycode_alt = 0; |
| |
| /* alt or esc key */ |
| if (keycode == 1) { |
| enum maybe_keycode next_maybe_keycode; |
| int nextchr = console_getch(&next_maybe_keycode); |
| |
| if (nextchr != -1) { |
| chr = nextchr; |
| maybe_keycode = next_maybe_keycode; |
| keycode_alt = ALT; |
| keycode = curses2keycode(chr, maybe_keycode); |
| |
| if (keycode != -1) { |
| keycode |= ALT; |
| |
| /* process keys reserved for qemu */ |
| if (keycode >= QEMU_KEY_CONSOLE0 && |
| keycode < QEMU_KEY_CONSOLE0 + 9) { |
| erase(); |
| wnoutrefresh(stdscr); |
| console_select(keycode - QEMU_KEY_CONSOLE0); |
| |
| invalidate = 1; |
| continue; |
| } |
| } |
| } |
| } |
| |
| if (kbd_layout) { |
| keysym = curses2keysym(chr, maybe_keycode); |
| |
| if (keysym == -1) { |
| if (chr < ' ') { |
| keysym = chr + '@'; |
| if (keysym >= 'A' && keysym <= 'Z') |
| keysym += 'a' - 'A'; |
| keysym |= KEYSYM_CNTRL; |
| } else |
| keysym = chr; |
| } |
| |
| keycode = keysym2scancode(kbd_layout, keysym & KEYSYM_MASK, |
| NULL, false); |
| if (keycode == 0) |
| continue; |
| |
| keycode |= (keysym & ~KEYSYM_MASK) >> 16; |
| keycode |= keycode_alt; |
| } |
| |
| if (keycode == -1) |
| continue; |
| |
| if (qemu_console_is_graphic(NULL)) { |
| /* since terminals don't know about key press and release |
| * events, we need to emit both for each key received */ |
| if (keycode & SHIFT) { |
| qemu_input_event_send_key_number(NULL, SHIFT_CODE, true); |
| qemu_input_event_send_key_delay(0); |
| } |
| if (keycode & CNTRL) { |
| qemu_input_event_send_key_number(NULL, CNTRL_CODE, true); |
| qemu_input_event_send_key_delay(0); |
| } |
| if (keycode & ALT) { |
| qemu_input_event_send_key_number(NULL, ALT_CODE, true); |
| qemu_input_event_send_key_delay(0); |
| } |
| if (keycode & ALTGR) { |
| qemu_input_event_send_key_number(NULL, GREY | ALT_CODE, true); |
| qemu_input_event_send_key_delay(0); |
| } |
| |
| qemu_input_event_send_key_number(NULL, keycode & KEY_MASK, true); |
| qemu_input_event_send_key_delay(0); |
| qemu_input_event_send_key_number(NULL, keycode & KEY_MASK, false); |
| qemu_input_event_send_key_delay(0); |
| |
| if (keycode & ALTGR) { |
| qemu_input_event_send_key_number(NULL, GREY | ALT_CODE, false); |
| qemu_input_event_send_key_delay(0); |
| } |
| if (keycode & ALT) { |
| qemu_input_event_send_key_number(NULL, ALT_CODE, false); |
| qemu_input_event_send_key_delay(0); |
| } |
| if (keycode & CNTRL) { |
| qemu_input_event_send_key_number(NULL, CNTRL_CODE, false); |
| qemu_input_event_send_key_delay(0); |
| } |
| if (keycode & SHIFT) { |
| qemu_input_event_send_key_number(NULL, SHIFT_CODE, false); |
| qemu_input_event_send_key_delay(0); |
| } |
| } else { |
| keysym = curses2qemu(chr, maybe_keycode); |
| if (keysym == -1) |
| keysym = chr; |
| |
| kbd_put_keysym(keysym); |
| } |
| } |
| } |
| |
| static void curses_atexit(void) |
| { |
| endwin(); |
| } |
| |
| static void curses_setup(void) |
| { |
| int i, colour_default[8] = { |
| [QEMU_COLOR_BLACK] = COLOR_BLACK, |
| [QEMU_COLOR_BLUE] = COLOR_BLUE, |
| [QEMU_COLOR_GREEN] = COLOR_GREEN, |
| [QEMU_COLOR_CYAN] = COLOR_CYAN, |
| [QEMU_COLOR_RED] = COLOR_RED, |
| [QEMU_COLOR_MAGENTA] = COLOR_MAGENTA, |
| [QEMU_COLOR_YELLOW] = COLOR_YELLOW, |
| [QEMU_COLOR_WHITE] = COLOR_WHITE, |
| }; |
| |
| /* input as raw as possible, let everything be interpreted |
| * by the guest system */ |
| initscr(); noecho(); intrflush(stdscr, FALSE); |
| nodelay(stdscr, TRUE); nonl(); keypad(stdscr, TRUE); |
| start_color(); raw(); scrollok(stdscr, FALSE); |
| set_escdelay(25); |
| |
| /* Make color pair to match color format (3bits bg:3bits fg) */ |
| for (i = 0; i < 64; i++) { |
| init_pair(i, colour_default[i & 7], colour_default[i >> 3]); |
| } |
| /* Set default color for more than 64 for safety. */ |
| for (i = 64; i < COLOR_PAIRS; i++) { |
| init_pair(i, COLOR_WHITE, COLOR_BLACK); |
| } |
| |
| /* |
| * Setup mapping for vga to curses line graphics. |
| * FIXME: for better font, have to use ncursesw and setlocale() |
| */ |
| #if 0 |
| /* FIXME: map from where? */ |
| ACS_S1; |
| ACS_S3; |
| ACS_S7; |
| ACS_S9; |
| #endif |
| /* ACS_* is not constant. So, we can't initialize statically. */ |
| vga_to_curses['\0'] = ' '; |
| vga_to_curses[0x04] = ACS_DIAMOND; |
| vga_to_curses[0x18] = ACS_UARROW; |
| vga_to_curses[0x19] = ACS_DARROW; |
| vga_to_curses[0x1a] = ACS_RARROW; |
| vga_to_curses[0x1b] = ACS_LARROW; |
| vga_to_curses[0x9c] = ACS_STERLING; |
| vga_to_curses[0xb0] = ACS_BOARD; |
| vga_to_curses[0xb1] = ACS_CKBOARD; |
| vga_to_curses[0xb3] = ACS_VLINE; |
| vga_to_curses[0xb4] = ACS_RTEE; |
| vga_to_curses[0xbf] = ACS_URCORNER; |
| vga_to_curses[0xc0] = ACS_LLCORNER; |
| vga_to_curses[0xc1] = ACS_BTEE; |
| vga_to_curses[0xc2] = ACS_TTEE; |
| vga_to_curses[0xc3] = ACS_LTEE; |
| vga_to_curses[0xc4] = ACS_HLINE; |
| vga_to_curses[0xc5] = ACS_PLUS; |
| vga_to_curses[0xce] = ACS_LANTERN; |
| vga_to_curses[0xd8] = ACS_NEQUAL; |
| vga_to_curses[0xd9] = ACS_LRCORNER; |
| vga_to_curses[0xda] = ACS_ULCORNER; |
| vga_to_curses[0xdb] = ACS_BLOCK; |
| vga_to_curses[0xe3] = ACS_PI; |
| vga_to_curses[0xf1] = ACS_PLMINUS; |
| vga_to_curses[0xf2] = ACS_GEQUAL; |
| vga_to_curses[0xf3] = ACS_LEQUAL; |
| vga_to_curses[0xf8] = ACS_DEGREE; |
| vga_to_curses[0xfe] = ACS_BULLET; |
| } |
| |
| static void curses_keyboard_setup(void) |
| { |
| #if defined(__APPLE__) |
| /* always use generic keymaps */ |
| if (!keyboard_layout) |
| keyboard_layout = "en-us"; |
| #endif |
| if(keyboard_layout) { |
| kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout, |
| &error_fatal); |
| } |
| } |
| |
| static const DisplayChangeListenerOps dcl_ops = { |
| .dpy_name = "curses", |
| .dpy_text_update = curses_update, |
| .dpy_text_resize = curses_resize, |
| .dpy_refresh = curses_refresh, |
| .dpy_text_cursor = curses_cursor_position, |
| }; |
| |
| static void curses_display_init(DisplayState *ds, DisplayOptions *opts) |
| { |
| #ifndef _WIN32 |
| if (!isatty(1)) { |
| fprintf(stderr, "We need a terminal output\n"); |
| exit(1); |
| } |
| #endif |
| |
| curses_setup(); |
| curses_keyboard_setup(); |
| atexit(curses_atexit); |
| |
| curses_winch_init(); |
| |
| dcl = g_new0(DisplayChangeListener, 1); |
| dcl->ops = &dcl_ops; |
| register_displaychangelistener(dcl); |
| |
| invalidate = 1; |
| } |
| |
| static QemuDisplay qemu_display_curses = { |
| .type = DISPLAY_TYPE_CURSES, |
| .init = curses_display_init, |
| }; |
| |
| static void register_curses(void) |
| { |
| qemu_display_register(&qemu_display_curses); |
| } |
| |
| type_init(register_curses); |
