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/*
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* QEMU SDL display driver
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*
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* Copyright (c) 2003 Fabrice Bellard
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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 "vl.h" |
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#include <SDL.h> |
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#ifndef _WIN32
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#include <signal.h> |
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#endif
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static SDL_Surface *screen;
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static int gui_grab; /* if true, all keyboard/mouse events are grabbed */ |
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static int last_vm_running; |
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static int gui_saved_grab; |
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static int gui_fullscreen; |
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static int gui_key_modifier_pressed; |
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static int gui_keysym; |
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static int gui_fullscreen_initial_grab; |
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static int gui_grab_code = KMOD_LALT | KMOD_LCTRL; |
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static uint8_t modifiers_state[256]; |
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static int width, height; |
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static SDL_Cursor *sdl_cursor_normal;
|
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static SDL_Cursor *sdl_cursor_hidden;
|
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static int absolute_enabled = 0; |
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|
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static void sdl_update(DisplayState *ds, int x, int y, int w, int h) |
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{
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// printf("updating x=%d y=%d w=%d h=%d\n", x, y, w, h);
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SDL_UpdateRect(screen, x, y, w, h); |
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} |
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|
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static void sdl_resize(DisplayState *ds, int w, int h) |
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{
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int flags;
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|
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// printf("resizing to %d %d\n", w, h);
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|
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flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL; |
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if (gui_fullscreen)
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flags |= SDL_FULLSCREEN; |
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|
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width = w; |
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height = h; |
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|
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again:
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screen = SDL_SetVideoMode(w, h, 0, flags);
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if (!screen) {
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fprintf(stderr, "Could not open SDL display\n");
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exit(1);
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} |
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if (!screen->pixels && (flags & SDL_HWSURFACE) && (flags & SDL_FULLSCREEN)) {
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flags &= ~SDL_HWSURFACE; |
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goto again;
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} |
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|
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if (!screen->pixels) {
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fprintf(stderr, "Could not open SDL display\n");
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exit(1);
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} |
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ds->data = screen->pixels; |
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ds->linesize = screen->pitch; |
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ds->depth = screen->format->BitsPerPixel; |
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if (ds->depth == 32 && screen->format->Rshift == 0) { |
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ds->bgr = 1;
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} else {
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ds->bgr = 0;
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} |
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ds->width = w; |
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ds->height = h; |
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} |
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|
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/* generic keyboard conversion */
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|
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#include "sdl_keysym.h" |
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#include "keymaps.c" |
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|
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static kbd_layout_t *kbd_layout = NULL; |
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|
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static uint8_t sdl_keyevent_to_keycode_generic(const SDL_KeyboardEvent *ev) |
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{
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int keysym;
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/* workaround for X11+SDL bug with AltGR */
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keysym = ev->keysym.sym; |
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if (keysym == 0 && ev->keysym.scancode == 113) |
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keysym = SDLK_MODE; |
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/* For Japanese key '\' and '|' */
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if (keysym == 92 && ev->keysym.scancode == 133) { |
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keysym = 0xa5;
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} |
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return keysym2scancode(kbd_layout, keysym);
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} |
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|
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/* specific keyboard conversions from scan codes */
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|
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#if defined(_WIN32)
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static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev) |
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{
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return ev->keysym.scancode;
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} |
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#else
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static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev) |
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{
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int keycode;
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keycode = ev->keysym.scancode; |
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|
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if (keycode < 9) { |
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keycode = 0;
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} else if (keycode < 97) { |
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keycode -= 8; /* just an offset */ |
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} else if (keycode < 212) { |
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/* use conversion table */
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keycode = _translate_keycode(keycode - 97);
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} else {
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keycode = 0;
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} |
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return keycode;
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} |
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#endif
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static void reset_keys(void) |
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{
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int i;
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for(i = 0; i < 256; i++) { |
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if (modifiers_state[i]) {
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if (i & 0x80) |
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kbd_put_keycode(0xe0);
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kbd_put_keycode(i | 0x80);
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modifiers_state[i] = 0;
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} |
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} |
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} |
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static void sdl_process_key(SDL_KeyboardEvent *ev) |
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{
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int keycode, v;
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|
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if (ev->keysym.sym == SDLK_PAUSE) {
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/* specific case */
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v = 0;
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if (ev->type == SDL_KEYUP)
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v |= 0x80;
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kbd_put_keycode(0xe1);
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kbd_put_keycode(0x1d | v);
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kbd_put_keycode(0x45 | v);
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return;
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} |
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if (kbd_layout) {
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keycode = sdl_keyevent_to_keycode_generic(ev); |
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} else {
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keycode = sdl_keyevent_to_keycode(ev); |
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} |
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|
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switch(keycode) {
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case 0x00: |
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/* sent when leaving window: reset the modifiers state */
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reset_keys(); |
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return;
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case 0x2a: /* Left Shift */ |
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case 0x36: /* Right Shift */ |
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case 0x1d: /* Left CTRL */ |
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case 0x9d: /* Right CTRL */ |
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case 0x38: /* Left ALT */ |
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case 0xb8: /* Right ALT */ |
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if (ev->type == SDL_KEYUP)
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modifiers_state[keycode] = 0;
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else
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modifiers_state[keycode] = 1;
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break;
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case 0x45: /* num lock */ |
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case 0x3a: /* caps lock */ |
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/* SDL does not send the key up event, so we generate it */
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kbd_put_keycode(keycode); |
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kbd_put_keycode(keycode | 0x80);
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return;
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} |
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|
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/* now send the key code */
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if (keycode & 0x80) |
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kbd_put_keycode(0xe0);
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if (ev->type == SDL_KEYUP)
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kbd_put_keycode(keycode | 0x80);
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else
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kbd_put_keycode(keycode & 0x7f);
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} |
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|
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static void sdl_update_caption(void) |
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{
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char buf[1024]; |
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strcpy(buf, "QEMU");
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if (!vm_running) {
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strcat(buf, " [Stopped]");
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} |
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if (gui_grab) {
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strcat(buf, " - Press Ctrl-Alt to exit grab");
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} |
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SDL_WM_SetCaption(buf, "QEMU");
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} |
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|
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static void sdl_hide_cursor(void) |
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{
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if (kbd_mouse_is_absolute()) {
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SDL_ShowCursor(1);
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SDL_SetCursor(sdl_cursor_hidden); |
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} else {
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SDL_ShowCursor(0);
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} |
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} |
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|
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static void sdl_show_cursor(void) |
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{
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if (!kbd_mouse_is_absolute()) {
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SDL_ShowCursor(1);
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SDL_SetCursor(sdl_cursor_normal); |
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} |
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} |
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|
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static void sdl_grab_start(void) |
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{
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sdl_hide_cursor(); |
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SDL_WM_GrabInput(SDL_GRAB_ON); |
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/* dummy read to avoid moving the mouse */
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SDL_GetRelativeMouseState(NULL, NULL); |
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gui_grab = 1;
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sdl_update_caption(); |
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} |
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|
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static void sdl_grab_end(void) |
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{
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SDL_WM_GrabInput(SDL_GRAB_OFF); |
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sdl_show_cursor(); |
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gui_grab = 0;
|
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sdl_update_caption(); |
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} |
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|
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static void sdl_send_mouse_event(int dz) |
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{
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int dx, dy, state, buttons;
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state = SDL_GetRelativeMouseState(&dx, &dy); |
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buttons = 0;
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if (state & SDL_BUTTON(SDL_BUTTON_LEFT))
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buttons |= MOUSE_EVENT_LBUTTON; |
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if (state & SDL_BUTTON(SDL_BUTTON_RIGHT))
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buttons |= MOUSE_EVENT_RBUTTON; |
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if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE))
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buttons |= MOUSE_EVENT_MBUTTON; |
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|
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if (kbd_mouse_is_absolute()) {
|
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if (!absolute_enabled) {
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sdl_hide_cursor(); |
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if (gui_grab) {
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sdl_grab_end(); |
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} |
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absolute_enabled = 1;
|
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} |
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|
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SDL_GetMouseState(&dx, &dy); |
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dx = dx * 0x7FFF / width;
|
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dy = dy * 0x7FFF / height;
|
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} else if (absolute_enabled) { |
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sdl_show_cursor(); |
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absolute_enabled = 0;
|
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} |
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|
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kbd_mouse_event(dx, dy, dz, buttons); |
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} |
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|
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static void toggle_full_screen(DisplayState *ds) |
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{
|
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gui_fullscreen = !gui_fullscreen; |
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sdl_resize(ds, screen->w, screen->h); |
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if (gui_fullscreen) {
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gui_saved_grab = gui_grab; |
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sdl_grab_start(); |
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} else {
|
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if (!gui_saved_grab)
|
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sdl_grab_end(); |
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} |
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vga_hw_invalidate(); |
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vga_hw_update(); |
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} |
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|
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static void sdl_refresh(DisplayState *ds) |
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{
|
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SDL_Event ev1, *ev = &ev1; |
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int mod_state;
|
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|
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if (last_vm_running != vm_running) {
|
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last_vm_running = vm_running; |
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sdl_update_caption(); |
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} |
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|
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vga_hw_update(); |
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|
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while (SDL_PollEvent(ev)) {
|
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switch (ev->type) {
|
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case SDL_VIDEOEXPOSE:
|
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sdl_update(ds, 0, 0, screen->w, screen->h); |
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break;
|
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case SDL_KEYDOWN:
|
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case SDL_KEYUP:
|
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if (ev->type == SDL_KEYDOWN) {
|
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mod_state = (SDL_GetModState() & gui_grab_code) == |
| 330 |
gui_grab_code; |
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gui_key_modifier_pressed = mod_state; |
| 332 |
if (gui_key_modifier_pressed) {
|
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int keycode;
|
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keycode = sdl_keyevent_to_keycode(&ev->key); |
| 335 |
switch(keycode) {
|
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case 0x21: /* 'f' key on US keyboard */ |
| 337 |
toggle_full_screen(ds); |
| 338 |
gui_keysym = 1;
|
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break;
|
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case 0x02 ... 0x0a: /* '1' to '9' keys */ |
| 341 |
/* Reset the modifiers sent to the current console */
|
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reset_keys(); |
| 343 |
console_select(keycode - 0x02);
|
| 344 |
if (!is_graphic_console()) {
|
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/* display grab if going to a text console */
|
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if (gui_grab)
|
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sdl_grab_end(); |
| 348 |
} |
| 349 |
gui_keysym = 1;
|
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break;
|
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default:
|
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break;
|
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} |
| 354 |
} else if (!is_graphic_console()) { |
| 355 |
int keysym;
|
| 356 |
keysym = 0;
|
| 357 |
if (ev->key.keysym.mod & (KMOD_LCTRL | KMOD_RCTRL)) {
|
| 358 |
switch(ev->key.keysym.sym) {
|
| 359 |
case SDLK_UP: keysym = QEMU_KEY_CTRL_UP; break; |
| 360 |
case SDLK_DOWN: keysym = QEMU_KEY_CTRL_DOWN; break; |
| 361 |
case SDLK_LEFT: keysym = QEMU_KEY_CTRL_LEFT; break; |
| 362 |
case SDLK_RIGHT: keysym = QEMU_KEY_CTRL_RIGHT; break; |
| 363 |
case SDLK_HOME: keysym = QEMU_KEY_CTRL_HOME; break; |
| 364 |
case SDLK_END: keysym = QEMU_KEY_CTRL_END; break; |
| 365 |
case SDLK_PAGEUP: keysym = QEMU_KEY_CTRL_PAGEUP; break; |
| 366 |
case SDLK_PAGEDOWN: keysym = QEMU_KEY_CTRL_PAGEDOWN; break; |
| 367 |
default: break; |
| 368 |
} |
| 369 |
} else {
|
| 370 |
switch(ev->key.keysym.sym) {
|
| 371 |
case SDLK_UP: keysym = QEMU_KEY_UP; break; |
| 372 |
case SDLK_DOWN: keysym = QEMU_KEY_DOWN; break; |
| 373 |
case SDLK_LEFT: keysym = QEMU_KEY_LEFT; break; |
| 374 |
case SDLK_RIGHT: keysym = QEMU_KEY_RIGHT; break; |
| 375 |
case SDLK_HOME: keysym = QEMU_KEY_HOME; break; |
| 376 |
case SDLK_END: keysym = QEMU_KEY_END; break; |
| 377 |
case SDLK_PAGEUP: keysym = QEMU_KEY_PAGEUP; break; |
| 378 |
case SDLK_PAGEDOWN: keysym = QEMU_KEY_PAGEDOWN; break; |
| 379 |
case SDLK_BACKSPACE: keysym = QEMU_KEY_BACKSPACE; break; case SDLK_DELETE: keysym = QEMU_KEY_DELETE; break; |
| 380 |
default: break; |
| 381 |
} |
| 382 |
} |
| 383 |
if (keysym) {
|
| 384 |
kbd_put_keysym(keysym); |
| 385 |
} else if (ev->key.keysym.unicode != 0) { |
| 386 |
kbd_put_keysym(ev->key.keysym.unicode); |
| 387 |
} |
| 388 |
} |
| 389 |
} else if (ev->type == SDL_KEYUP) { |
| 390 |
mod_state = (ev->key.keysym.mod & gui_grab_code); |
| 391 |
if (!mod_state) {
|
| 392 |
if (gui_key_modifier_pressed) {
|
| 393 |
gui_key_modifier_pressed = 0;
|
| 394 |
if (gui_keysym == 0) { |
| 395 |
/* exit/enter grab if pressing Ctrl-Alt */
|
| 396 |
if (!gui_grab) {
|
| 397 |
/* if the application is not active,
|
| 398 |
do not try to enter grab state. It
|
| 399 |
prevents
|
| 400 |
'SDL_WM_GrabInput(SDL_GRAB_ON)'
|
| 401 |
from blocking all the application
|
| 402 |
(SDL bug). */
|
| 403 |
if (SDL_GetAppState() & SDL_APPACTIVE)
|
| 404 |
sdl_grab_start(); |
| 405 |
} else {
|
| 406 |
sdl_grab_end(); |
| 407 |
} |
| 408 |
/* SDL does not send back all the
|
| 409 |
modifiers key, so we must correct it */
|
| 410 |
reset_keys(); |
| 411 |
break;
|
| 412 |
} |
| 413 |
gui_keysym = 0;
|
| 414 |
} |
| 415 |
} |
| 416 |
} |
| 417 |
if (is_graphic_console() && !gui_keysym)
|
| 418 |
sdl_process_key(&ev->key); |
| 419 |
break;
|
| 420 |
case SDL_QUIT:
|
| 421 |
if (!no_quit) {
|
| 422 |
qemu_system_shutdown_request(); |
| 423 |
} |
| 424 |
break;
|
| 425 |
case SDL_MOUSEMOTION:
|
| 426 |
if (gui_grab || kbd_mouse_is_absolute() ||
|
| 427 |
absolute_enabled) {
|
| 428 |
sdl_send_mouse_event(0);
|
| 429 |
} |
| 430 |
break;
|
| 431 |
case SDL_MOUSEBUTTONDOWN:
|
| 432 |
case SDL_MOUSEBUTTONUP:
|
| 433 |
{
|
| 434 |
SDL_MouseButtonEvent *bev = &ev->button; |
| 435 |
if (!gui_grab && !kbd_mouse_is_absolute()) {
|
| 436 |
if (ev->type == SDL_MOUSEBUTTONDOWN &&
|
| 437 |
(bev->state & SDL_BUTTON_LMASK)) {
|
| 438 |
/* start grabbing all events */
|
| 439 |
sdl_grab_start(); |
| 440 |
} |
| 441 |
} else {
|
| 442 |
int dz;
|
| 443 |
dz = 0;
|
| 444 |
#ifdef SDL_BUTTON_WHEELUP
|
| 445 |
if (bev->button == SDL_BUTTON_WHEELUP && ev->type == SDL_MOUSEBUTTONDOWN) {
|
| 446 |
dz = -1;
|
| 447 |
} else if (bev->button == SDL_BUTTON_WHEELDOWN && ev->type == SDL_MOUSEBUTTONDOWN) { |
| 448 |
dz = 1;
|
| 449 |
} |
| 450 |
#endif
|
| 451 |
sdl_send_mouse_event(dz); |
| 452 |
} |
| 453 |
} |
| 454 |
break;
|
| 455 |
case SDL_ACTIVEEVENT:
|
| 456 |
if (gui_grab && ev->active.state == SDL_APPINPUTFOCUS &&
|
| 457 |
!ev->active.gain && !gui_fullscreen_initial_grab) {
|
| 458 |
sdl_grab_end(); |
| 459 |
} |
| 460 |
break;
|
| 461 |
default:
|
| 462 |
break;
|
| 463 |
} |
| 464 |
} |
| 465 |
} |
| 466 |
|
| 467 |
static void sdl_cleanup(void) |
| 468 |
{
|
| 469 |
SDL_Quit(); |
| 470 |
} |
| 471 |
|
| 472 |
void sdl_display_init(DisplayState *ds, int full_screen) |
| 473 |
{
|
| 474 |
int flags;
|
| 475 |
uint8_t data = 0;
|
| 476 |
|
| 477 |
#if defined(__APPLE__)
|
| 478 |
/* always use generic keymaps */
|
| 479 |
if (!keyboard_layout)
|
| 480 |
keyboard_layout = "en-us";
|
| 481 |
#endif
|
| 482 |
if(keyboard_layout) {
|
| 483 |
kbd_layout = init_keyboard_layout(keyboard_layout); |
| 484 |
if (!kbd_layout)
|
| 485 |
exit(1);
|
| 486 |
} |
| 487 |
|
| 488 |
flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE; |
| 489 |
if (SDL_Init (flags)) {
|
| 490 |
fprintf(stderr, "Could not initialize SDL - exiting\n");
|
| 491 |
exit(1);
|
| 492 |
} |
| 493 |
#ifndef _WIN32
|
| 494 |
/* NOTE: we still want Ctrl-C to work, so we undo the SDL redirections */
|
| 495 |
signal(SIGINT, SIG_DFL); |
| 496 |
signal(SIGQUIT, SIG_DFL); |
| 497 |
#endif
|
| 498 |
|
| 499 |
ds->dpy_update = sdl_update; |
| 500 |
ds->dpy_resize = sdl_resize; |
| 501 |
ds->dpy_refresh = sdl_refresh; |
| 502 |
|
| 503 |
sdl_resize(ds, 640, 400); |
| 504 |
sdl_update_caption(); |
| 505 |
SDL_EnableKeyRepeat(250, 50); |
| 506 |
SDL_EnableUNICODE(1);
|
| 507 |
gui_grab = 0;
|
| 508 |
|
| 509 |
sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0); |
| 510 |
sdl_cursor_normal = SDL_GetCursor(); |
| 511 |
|
| 512 |
atexit(sdl_cleanup); |
| 513 |
if (full_screen) {
|
| 514 |
gui_fullscreen = 1;
|
| 515 |
gui_fullscreen_initial_grab = 1;
|
| 516 |
sdl_grab_start(); |
| 517 |
} |
| 518 |
} |