a5489ae5bb
cchar_t can contain not only attr and chars fields, but also ext_color. Initialize the whole structure to zero instead of enumerating fields. Spotted by Coverity: CID 1399711 Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Message-Id: <20190315130932.26094-1-samuel.thibault@ens-lyon.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
741 lines
20 KiB
C
741 lines
20 KiB
C
/*
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* QEMU curses/ncurses display driver
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*
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* Copyright (c) 2005 Andrzej Zaborowski <balrog@zabor.org>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu/osdep.h"
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#ifndef _WIN32
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#include <sys/ioctl.h>
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#include <termios.h>
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#endif
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#include <locale.h>
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#include <wchar.h>
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#include <langinfo.h>
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#include <iconv.h>
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#include "qapi/error.h"
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#include "qemu-common.h"
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#include "ui/console.h"
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#include "ui/input.h"
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#include "sysemu/sysemu.h"
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/* KEY_EVENT is defined in wincon.h and in curses.h. Avoid redefinition. */
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#undef KEY_EVENT
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#include <curses.h>
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#undef KEY_EVENT
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#define FONT_HEIGHT 16
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#define FONT_WIDTH 8
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enum maybe_keycode {
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CURSES_KEYCODE,
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CURSES_CHAR,
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CURSES_CHAR_OR_KEYCODE,
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};
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static DisplayChangeListener *dcl;
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static console_ch_t screen[160 * 100];
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static WINDOW *screenpad = NULL;
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static int width, height, gwidth, gheight, invalidate;
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static int px, py, sminx, sminy, smaxx, smaxy;
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static const char *font_charset = "CP437";
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static cchar_t vga_to_curses[256];
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static void curses_update(DisplayChangeListener *dcl,
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int x, int y, int w, int h)
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{
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console_ch_t *line;
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cchar_t curses_line[width];
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line = screen + y * width;
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for (h += y; y < h; y ++, line += width) {
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for (x = 0; x < width; x++) {
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chtype ch = line[x] & 0xff;
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chtype at = line[x] & ~0xff;
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if (vga_to_curses[ch].chars[0]) {
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curses_line[x] = vga_to_curses[ch];
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} else {
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curses_line[x] = (cchar_t) {
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.chars[0] = ch,
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};
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}
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curses_line[x].attr |= at;
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}
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mvwadd_wchnstr(screenpad, y, 0, curses_line, width);
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}
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pnoutrefresh(screenpad, py, px, sminy, sminx, smaxy - 1, smaxx - 1);
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refresh();
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}
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static void curses_calc_pad(void)
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{
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if (qemu_console_is_fixedsize(NULL)) {
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width = gwidth;
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height = gheight;
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} else {
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width = COLS;
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height = LINES;
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}
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if (screenpad)
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delwin(screenpad);
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clear();
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refresh();
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screenpad = newpad(height, width);
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if (width > COLS) {
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px = (width - COLS) / 2;
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sminx = 0;
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smaxx = COLS;
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} else {
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px = 0;
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sminx = (COLS - width) / 2;
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smaxx = sminx + width;
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}
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if (height > LINES) {
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py = (height - LINES) / 2;
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sminy = 0;
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smaxy = LINES;
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} else {
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py = 0;
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sminy = (LINES - height) / 2;
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smaxy = sminy + height;
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}
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}
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static void curses_resize(DisplayChangeListener *dcl,
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int width, int height)
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{
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if (width == gwidth && height == gheight) {
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return;
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}
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gwidth = width;
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gheight = height;
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curses_calc_pad();
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}
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#if !defined(_WIN32) && defined(SIGWINCH) && defined(KEY_RESIZE)
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static volatile sig_atomic_t got_sigwinch;
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static void curses_winch_check(void)
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{
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struct winsize {
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unsigned short ws_row;
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unsigned short ws_col;
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unsigned short ws_xpixel; /* unused */
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unsigned short ws_ypixel; /* unused */
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} ws;
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if (!got_sigwinch) {
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return;
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}
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got_sigwinch = false;
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if (ioctl(1, TIOCGWINSZ, &ws) == -1) {
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return;
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}
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resize_term(ws.ws_row, ws.ws_col);
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invalidate = 1;
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}
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static void curses_winch_handler(int signum)
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{
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got_sigwinch = true;
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}
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static void curses_winch_init(void)
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{
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struct sigaction old, winch = {
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.sa_handler = curses_winch_handler,
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};
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sigaction(SIGWINCH, &winch, &old);
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}
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#else
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static void curses_winch_check(void) {}
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static void curses_winch_init(void) {}
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#endif
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static void curses_cursor_position(DisplayChangeListener *dcl,
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int x, int y)
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{
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if (x >= 0) {
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x = sminx + x - px;
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y = sminy + y - py;
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if (x >= 0 && y >= 0 && x < COLS && y < LINES) {
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move(y, x);
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curs_set(1);
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/* it seems that curs_set(1) must always be called before
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* curs_set(2) for the latter to have effect */
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if (!qemu_console_is_graphic(NULL)) {
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curs_set(2);
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}
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return;
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}
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}
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curs_set(0);
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}
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/* generic keyboard conversion */
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#include "curses_keys.h"
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static kbd_layout_t *kbd_layout = NULL;
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static wint_t console_getch(enum maybe_keycode *maybe_keycode)
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{
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wint_t ret;
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switch (get_wch(&ret)) {
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case KEY_CODE_YES:
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*maybe_keycode = CURSES_KEYCODE;
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break;
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case OK:
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*maybe_keycode = CURSES_CHAR;
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break;
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case ERR:
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ret = -1;
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break;
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}
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return ret;
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}
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static int curses2foo(const int _curses2foo[], const int _curseskey2foo[],
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int chr, enum maybe_keycode maybe_keycode)
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{
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int ret = -1;
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if (maybe_keycode == CURSES_CHAR) {
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if (chr < CURSES_CHARS) {
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ret = _curses2foo[chr];
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}
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} else {
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if (chr < CURSES_KEYS) {
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ret = _curseskey2foo[chr];
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}
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if (ret == -1 && maybe_keycode == CURSES_CHAR_OR_KEYCODE &&
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chr < CURSES_CHARS) {
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ret = _curses2foo[chr];
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}
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}
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return ret;
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}
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#define curses2keycode(chr, maybe_keycode) \
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curses2foo(_curses2keycode, _curseskey2keycode, chr, maybe_keycode)
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#define curses2keysym(chr, maybe_keycode) \
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curses2foo(_curses2keysym, _curseskey2keysym, chr, maybe_keycode)
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#define curses2qemu(chr, maybe_keycode) \
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curses2foo(_curses2qemu, _curseskey2qemu, chr, maybe_keycode)
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static void curses_refresh(DisplayChangeListener *dcl)
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{
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int chr, keysym, keycode, keycode_alt;
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enum maybe_keycode maybe_keycode;
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curses_winch_check();
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if (invalidate) {
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clear();
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refresh();
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curses_calc_pad();
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graphic_hw_invalidate(NULL);
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invalidate = 0;
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}
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graphic_hw_text_update(NULL, screen);
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while (1) {
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/* while there are any pending key strokes to process */
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chr = console_getch(&maybe_keycode);
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if (chr == -1)
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break;
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#ifdef KEY_RESIZE
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/* this shouldn't occur when we use a custom SIGWINCH handler */
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if (maybe_keycode != CURSES_CHAR && chr == KEY_RESIZE) {
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clear();
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refresh();
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curses_calc_pad();
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curses_update(dcl, 0, 0, width, height);
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continue;
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}
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#endif
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keycode = curses2keycode(chr, maybe_keycode);
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keycode_alt = 0;
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/* alt or esc key */
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if (keycode == 1) {
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enum maybe_keycode next_maybe_keycode;
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int nextchr = console_getch(&next_maybe_keycode);
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if (nextchr != -1) {
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chr = nextchr;
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maybe_keycode = next_maybe_keycode;
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keycode_alt = ALT;
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keycode = curses2keycode(chr, maybe_keycode);
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if (keycode != -1) {
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keycode |= ALT;
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/* process keys reserved for qemu */
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if (keycode >= QEMU_KEY_CONSOLE0 &&
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keycode < QEMU_KEY_CONSOLE0 + 9) {
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erase();
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wnoutrefresh(stdscr);
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console_select(keycode - QEMU_KEY_CONSOLE0);
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invalidate = 1;
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continue;
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}
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}
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}
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}
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if (kbd_layout) {
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keysym = curses2keysym(chr, maybe_keycode);
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if (keysym == -1) {
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if (chr < ' ') {
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keysym = chr + '@';
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if (keysym >= 'A' && keysym <= 'Z')
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keysym += 'a' - 'A';
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keysym |= KEYSYM_CNTRL;
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} else
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keysym = chr;
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}
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keycode = keysym2scancode(kbd_layout, keysym & KEYSYM_MASK,
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NULL, false);
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if (keycode == 0)
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continue;
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keycode |= (keysym & ~KEYSYM_MASK) >> 16;
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keycode |= keycode_alt;
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}
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if (keycode == -1)
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continue;
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if (qemu_console_is_graphic(NULL)) {
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/* since terminals don't know about key press and release
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* events, we need to emit both for each key received */
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if (keycode & SHIFT) {
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qemu_input_event_send_key_number(NULL, SHIFT_CODE, true);
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qemu_input_event_send_key_delay(0);
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}
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if (keycode & CNTRL) {
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qemu_input_event_send_key_number(NULL, CNTRL_CODE, true);
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qemu_input_event_send_key_delay(0);
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}
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if (keycode & ALT) {
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qemu_input_event_send_key_number(NULL, ALT_CODE, true);
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qemu_input_event_send_key_delay(0);
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}
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if (keycode & ALTGR) {
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qemu_input_event_send_key_number(NULL, GREY | ALT_CODE, true);
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qemu_input_event_send_key_delay(0);
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}
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qemu_input_event_send_key_number(NULL, keycode & KEY_MASK, true);
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qemu_input_event_send_key_delay(0);
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qemu_input_event_send_key_number(NULL, keycode & KEY_MASK, false);
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qemu_input_event_send_key_delay(0);
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if (keycode & ALTGR) {
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qemu_input_event_send_key_number(NULL, GREY | ALT_CODE, false);
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qemu_input_event_send_key_delay(0);
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}
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if (keycode & ALT) {
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qemu_input_event_send_key_number(NULL, ALT_CODE, false);
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qemu_input_event_send_key_delay(0);
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}
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if (keycode & CNTRL) {
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qemu_input_event_send_key_number(NULL, CNTRL_CODE, false);
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qemu_input_event_send_key_delay(0);
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}
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if (keycode & SHIFT) {
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qemu_input_event_send_key_number(NULL, SHIFT_CODE, false);
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qemu_input_event_send_key_delay(0);
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}
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} else {
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keysym = curses2qemu(chr, maybe_keycode);
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if (keysym == -1)
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keysym = chr;
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kbd_put_keysym(keysym);
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}
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}
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}
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static void curses_atexit(void)
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{
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endwin();
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}
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/* Setup wchar glyph for one UCS-2 char */
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static void convert_ucs(int glyph, uint16_t ch, iconv_t conv)
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{
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wchar_t wch;
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char *pch, *pwch;
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size_t sch, swch;
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pch = (char *) &ch;
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pwch = (char *) &wch;
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sch = sizeof(ch);
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swch = sizeof(wch);
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if (iconv(conv, &pch, &sch, &pwch, &swch) == (size_t) -1) {
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fprintf(stderr, "Could not convert 0x%04x from UCS-2 to WCHAR_T: %s\n",
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ch, strerror(errno));
|
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} else {
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vga_to_curses[glyph].chars[0] = wch;
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}
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}
|
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|
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/* Setup wchar glyph for one font character */
|
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static void convert_font(unsigned char ch, iconv_t conv)
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{
|
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wchar_t wch;
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char *pch, *pwch;
|
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size_t sch, swch;
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pch = (char *) &ch;
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pwch = (char *) &wch;
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sch = sizeof(ch);
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swch = sizeof(wch);
|
|
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if (iconv(conv, &pch, &sch, &pwch, &swch) == (size_t) -1) {
|
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fprintf(stderr, "Could not convert 0x%02x from %s to WCHAR_T: %s\n",
|
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ch, font_charset, strerror(errno));
|
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} else {
|
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vga_to_curses[ch].chars[0] = wch;
|
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}
|
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}
|
|
|
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/* Convert one wchar to UCS-2 */
|
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static uint16_t get_ucs(wchar_t wch, iconv_t conv)
|
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{
|
|
uint16_t ch;
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char *pch, *pwch;
|
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size_t sch, swch;
|
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|
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pch = (char *) &ch;
|
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pwch = (char *) &wch;
|
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sch = sizeof(ch);
|
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swch = sizeof(wch);
|
|
|
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if (iconv(conv, &pwch, &swch, &pch, &sch) == (size_t) -1) {
|
|
fprintf(stderr, "Could not convert 0x%02x from WCHAR_T to UCS-2: %s\n",
|
|
wch, strerror(errno));
|
|
return 0xFFFD;
|
|
}
|
|
|
|
return ch;
|
|
}
|
|
|
|
/*
|
|
* Setup mapping for vga to curses line graphics.
|
|
*/
|
|
static void font_setup(void)
|
|
{
|
|
/*
|
|
* Control characters are normally non-printable, but VGA does have
|
|
* well-known glyphs for them.
|
|
*/
|
|
static uint16_t control_characters[0x20] = {
|
|
0x0020,
|
|
0x263a,
|
|
0x263b,
|
|
0x2665,
|
|
0x2666,
|
|
0x2663,
|
|
0x2660,
|
|
0x2022,
|
|
0x25d8,
|
|
0x25cb,
|
|
0x25d9,
|
|
0x2642,
|
|
0x2640,
|
|
0x266a,
|
|
0x266b,
|
|
0x263c,
|
|
0x25ba,
|
|
0x25c4,
|
|
0x2195,
|
|
0x203c,
|
|
0x00b6,
|
|
0x00a7,
|
|
0x25ac,
|
|
0x21a8,
|
|
0x2191,
|
|
0x2193,
|
|
0x2192,
|
|
0x2190,
|
|
0x221f,
|
|
0x2194,
|
|
0x25b2,
|
|
0x25bc
|
|
};
|
|
|
|
iconv_t ucs_to_wchar_conv;
|
|
iconv_t wchar_to_ucs_conv;
|
|
iconv_t font_conv;
|
|
int i;
|
|
|
|
ucs_to_wchar_conv = iconv_open("WCHAR_T", "UCS-2");
|
|
if (ucs_to_wchar_conv == (iconv_t) -1) {
|
|
fprintf(stderr, "Could not convert font glyphs from UCS-2: '%s'\n",
|
|
strerror(errno));
|
|
exit(1);
|
|
}
|
|
|
|
wchar_to_ucs_conv = iconv_open("UCS-2", "WCHAR_T");
|
|
if (wchar_to_ucs_conv == (iconv_t) -1) {
|
|
fprintf(stderr, "Could not convert font glyphs to UCS-2: '%s'\n",
|
|
strerror(errno));
|
|
exit(1);
|
|
}
|
|
|
|
font_conv = iconv_open("WCHAR_T", font_charset);
|
|
if (font_conv == (iconv_t) -1) {
|
|
fprintf(stderr, "Could not convert font glyphs from %s: '%s'\n",
|
|
font_charset, strerror(errno));
|
|
exit(1);
|
|
}
|
|
|
|
/* Control characters */
|
|
for (i = 0; i <= 0x1F; i++) {
|
|
convert_ucs(i, control_characters[i], ucs_to_wchar_conv);
|
|
}
|
|
|
|
for (i = 0x20; i <= 0xFF; i++) {
|
|
convert_font(i, font_conv);
|
|
}
|
|
|
|
/* DEL */
|
|
convert_ucs(0x7F, 0x2302, ucs_to_wchar_conv);
|
|
|
|
if (strcmp(nl_langinfo(CODESET), "UTF-8")) {
|
|
/* Non-Unicode capable, use termcap equivalents for those available */
|
|
for (i = 0; i <= 0xFF; i++) {
|
|
switch (get_ucs(vga_to_curses[i].chars[0], wchar_to_ucs_conv)) {
|
|
case 0x00a3:
|
|
vga_to_curses[i] = *WACS_STERLING;
|
|
break;
|
|
case 0x2591:
|
|
vga_to_curses[i] = *WACS_BOARD;
|
|
break;
|
|
case 0x2592:
|
|
vga_to_curses[i] = *WACS_CKBOARD;
|
|
break;
|
|
case 0x2502:
|
|
vga_to_curses[i] = *WACS_VLINE;
|
|
break;
|
|
case 0x2524:
|
|
vga_to_curses[i] = *WACS_RTEE;
|
|
break;
|
|
case 0x2510:
|
|
vga_to_curses[i] = *WACS_URCORNER;
|
|
break;
|
|
case 0x2514:
|
|
vga_to_curses[i] = *WACS_LLCORNER;
|
|
break;
|
|
case 0x2534:
|
|
vga_to_curses[i] = *WACS_BTEE;
|
|
break;
|
|
case 0x252c:
|
|
vga_to_curses[i] = *WACS_TTEE;
|
|
break;
|
|
case 0x251c:
|
|
vga_to_curses[i] = *WACS_LTEE;
|
|
break;
|
|
case 0x2500:
|
|
vga_to_curses[i] = *WACS_HLINE;
|
|
break;
|
|
case 0x253c:
|
|
vga_to_curses[i] = *WACS_PLUS;
|
|
break;
|
|
case 0x256c:
|
|
vga_to_curses[i] = *WACS_LANTERN;
|
|
break;
|
|
case 0x256a:
|
|
vga_to_curses[i] = *WACS_NEQUAL;
|
|
break;
|
|
case 0x2518:
|
|
vga_to_curses[i] = *WACS_LRCORNER;
|
|
break;
|
|
case 0x250c:
|
|
vga_to_curses[i] = *WACS_ULCORNER;
|
|
break;
|
|
case 0x2588:
|
|
vga_to_curses[i] = *WACS_BLOCK;
|
|
break;
|
|
case 0x03c0:
|
|
vga_to_curses[i] = *WACS_PI;
|
|
break;
|
|
case 0x00b1:
|
|
vga_to_curses[i] = *WACS_PLMINUS;
|
|
break;
|
|
case 0x2265:
|
|
vga_to_curses[i] = *WACS_GEQUAL;
|
|
break;
|
|
case 0x2264:
|
|
vga_to_curses[i] = *WACS_LEQUAL;
|
|
break;
|
|
case 0x00b0:
|
|
vga_to_curses[i] = *WACS_DEGREE;
|
|
break;
|
|
case 0x25a0:
|
|
vga_to_curses[i] = *WACS_BULLET;
|
|
break;
|
|
case 0x2666:
|
|
vga_to_curses[i] = *WACS_DIAMOND;
|
|
break;
|
|
case 0x2192:
|
|
vga_to_curses[i] = *WACS_RARROW;
|
|
break;
|
|
case 0x2190:
|
|
vga_to_curses[i] = *WACS_LARROW;
|
|
break;
|
|
case 0x2191:
|
|
vga_to_curses[i] = *WACS_UARROW;
|
|
break;
|
|
case 0x2193:
|
|
vga_to_curses[i] = *WACS_DARROW;
|
|
break;
|
|
case 0x23ba:
|
|
vga_to_curses[i] = *WACS_S1;
|
|
break;
|
|
case 0x23bb:
|
|
vga_to_curses[i] = *WACS_S3;
|
|
break;
|
|
case 0x23bc:
|
|
vga_to_curses[i] = *WACS_S7;
|
|
break;
|
|
case 0x23bd:
|
|
vga_to_curses[i] = *WACS_S9;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
font_setup();
|
|
}
|
|
|
|
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
|
|
|
|
setlocale(LC_CTYPE, "");
|
|
if (opts->u.curses.charset) {
|
|
font_charset = opts->u.curses.charset;
|
|
}
|
|
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);
|