2 * QEMU SDL display driver
4 * Copyright (c) 2003 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 #include "qemu-common.h"
34 static SDL_Surface *screen;
35 static int gui_grab; /* if true, all keyboard/mouse events are grabbed */
36 static int last_vm_running;
37 static int gui_saved_grab;
38 static int gui_fullscreen;
39 static int gui_noframe;
40 static int gui_key_modifier_pressed;
41 static int gui_keysym;
42 static int gui_fullscreen_initial_grab;
43 static int gui_grab_code = KMOD_LALT | KMOD_LCTRL;
44 static uint8_t modifiers_state[256];
45 static int width, height;
46 static SDL_Cursor *sdl_cursor_normal;
47 static SDL_Cursor *sdl_cursor_hidden;
48 static int absolute_enabled = 0;
49 static int guest_cursor = 0;
50 static int guest_x, guest_y;
51 static SDL_Cursor *guest_sprite = 0;
53 static void sdl_update(DisplayState *ds, int x, int y, int w, int h)
55 // printf("updating x=%d y=%d w=%d h=%d\n", x, y, w, h);
56 SDL_UpdateRect(screen, x, y, w, h);
59 static void sdl_resize(DisplayState *ds, int w, int h)
63 // printf("resizing to %d %d\n", w, h);
65 flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
67 flags |= SDL_FULLSCREEN;
75 screen = SDL_SetVideoMode(w, h, 0, flags);
77 fprintf(stderr, "Could not open SDL display\n");
80 if (!screen->pixels && (flags & SDL_HWSURFACE) && (flags & SDL_FULLSCREEN)) {
81 flags &= ~SDL_HWSURFACE;
85 if (!screen->pixels) {
86 fprintf(stderr, "Could not open SDL display\n");
89 ds->data = screen->pixels;
90 ds->linesize = screen->pitch;
91 ds->depth = screen->format->BitsPerPixel;
92 if (screen->format->Bshift > screen->format->Rshift) {
101 /* generic keyboard conversion */
103 #include "sdl_keysym.h"
106 static kbd_layout_t *kbd_layout = NULL;
108 static uint8_t sdl_keyevent_to_keycode_generic(const SDL_KeyboardEvent *ev)
111 /* workaround for X11+SDL bug with AltGR */
112 keysym = ev->keysym.sym;
113 if (keysym == 0 && ev->keysym.scancode == 113)
115 /* For Japanese key '\' and '|' */
116 if (keysym == 92 && ev->keysym.scancode == 133) {
119 return keysym2scancode(kbd_layout, keysym);
122 /* specific keyboard conversions from scan codes */
126 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
128 return ev->keysym.scancode;
133 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
137 keycode = ev->keysym.scancode;
141 } else if (keycode < 97) {
142 keycode -= 8; /* just an offset */
143 } else if (keycode < 212) {
144 /* use conversion table */
145 keycode = _translate_keycode(keycode - 97);
154 static void reset_keys(void)
157 for(i = 0; i < 256; i++) {
158 if (modifiers_state[i]) {
160 kbd_put_keycode(0xe0);
161 kbd_put_keycode(i | 0x80);
162 modifiers_state[i] = 0;
167 static void sdl_process_key(SDL_KeyboardEvent *ev)
171 if (ev->keysym.sym == SDLK_PAUSE) {
174 if (ev->type == SDL_KEYUP)
176 kbd_put_keycode(0xe1);
177 kbd_put_keycode(0x1d | v);
178 kbd_put_keycode(0x45 | v);
183 keycode = sdl_keyevent_to_keycode_generic(ev);
185 keycode = sdl_keyevent_to_keycode(ev);
190 /* sent when leaving window: reset the modifiers state */
193 case 0x2a: /* Left Shift */
194 case 0x36: /* Right Shift */
195 case 0x1d: /* Left CTRL */
196 case 0x9d: /* Right CTRL */
197 case 0x38: /* Left ALT */
198 case 0xb8: /* Right ALT */
199 if (ev->type == SDL_KEYUP)
200 modifiers_state[keycode] = 0;
202 modifiers_state[keycode] = 1;
204 case 0x45: /* num lock */
205 case 0x3a: /* caps lock */
206 /* SDL does not send the key up event, so we generate it */
207 kbd_put_keycode(keycode);
208 kbd_put_keycode(keycode | 0x80);
212 /* now send the key code */
214 kbd_put_keycode(0xe0);
215 if (ev->type == SDL_KEYUP)
216 kbd_put_keycode(keycode | 0x80);
218 kbd_put_keycode(keycode & 0x7f);
221 static void sdl_update_caption(void)
224 const char *status = "";
227 status = " [Stopped]";
230 status = " - Press Ctrl-Alt to exit grab";
232 status = " - Press Ctrl-Alt-Shift to exit grab";
236 snprintf(buf, sizeof(buf), "QEMU (%s)%s", qemu_name, status);
238 snprintf(buf, sizeof(buf), "QEMU%s", status);
240 SDL_WM_SetCaption(buf, "QEMU");
243 static void sdl_hide_cursor(void)
248 if (kbd_mouse_is_absolute()) {
250 SDL_SetCursor(sdl_cursor_hidden);
256 static void sdl_show_cursor(void)
261 if (!kbd_mouse_is_absolute()) {
264 (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
265 SDL_SetCursor(guest_sprite);
267 SDL_SetCursor(sdl_cursor_normal);
271 static void sdl_grab_start(void)
274 SDL_SetCursor(guest_sprite);
275 SDL_WarpMouse(guest_x, guest_y);
278 SDL_WM_GrabInput(SDL_GRAB_ON);
279 /* dummy read to avoid moving the mouse */
280 SDL_GetRelativeMouseState(NULL, NULL);
282 sdl_update_caption();
285 static void sdl_grab_end(void)
287 SDL_WM_GrabInput(SDL_GRAB_OFF);
290 sdl_update_caption();
293 static void sdl_send_mouse_event(int dz)
295 int dx, dy, state, buttons;
296 state = SDL_GetRelativeMouseState(&dx, &dy);
298 if (state & SDL_BUTTON(SDL_BUTTON_LEFT))
299 buttons |= MOUSE_EVENT_LBUTTON;
300 if (state & SDL_BUTTON(SDL_BUTTON_RIGHT))
301 buttons |= MOUSE_EVENT_RBUTTON;
302 if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE))
303 buttons |= MOUSE_EVENT_MBUTTON;
305 if (kbd_mouse_is_absolute()) {
306 if (!absolute_enabled) {
311 absolute_enabled = 1;
314 SDL_GetMouseState(&dx, &dy);
315 dx = dx * 0x7FFF / width;
316 dy = dy * 0x7FFF / height;
317 } else if (absolute_enabled) {
319 absolute_enabled = 0;
320 } else if (guest_cursor) {
321 SDL_GetMouseState(&dx, &dy);
328 kbd_mouse_event(dx, dy, dz, buttons);
331 static void toggle_full_screen(DisplayState *ds)
333 gui_fullscreen = !gui_fullscreen;
334 sdl_resize(ds, screen->w, screen->h);
335 if (gui_fullscreen) {
336 gui_saved_grab = gui_grab;
346 static void sdl_refresh(DisplayState *ds)
348 SDL_Event ev1, *ev = &ev1;
351 if (last_vm_running != vm_running) {
352 last_vm_running = vm_running;
353 sdl_update_caption();
358 while (SDL_PollEvent(ev)) {
360 case SDL_VIDEOEXPOSE:
361 sdl_update(ds, 0, 0, screen->w, screen->h);
365 if (ev->type == SDL_KEYDOWN) {
367 mod_state = (SDL_GetModState() & gui_grab_code) ==
370 mod_state = (SDL_GetModState() & (gui_grab_code | KMOD_LSHIFT)) ==
371 (gui_grab_code | KMOD_LSHIFT);
373 gui_key_modifier_pressed = mod_state;
374 if (gui_key_modifier_pressed) {
376 keycode = sdl_keyevent_to_keycode(&ev->key);
378 case 0x21: /* 'f' key on US keyboard */
379 toggle_full_screen(ds);
382 case 0x02 ... 0x0a: /* '1' to '9' keys */
383 /* Reset the modifiers sent to the current console */
385 console_select(keycode - 0x02);
386 if (!is_graphic_console()) {
387 /* display grab if going to a text console */
396 } else if (!is_graphic_console()) {
399 if (ev->key.keysym.mod & (KMOD_LCTRL | KMOD_RCTRL)) {
400 switch(ev->key.keysym.sym) {
401 case SDLK_UP: keysym = QEMU_KEY_CTRL_UP; break;
402 case SDLK_DOWN: keysym = QEMU_KEY_CTRL_DOWN; break;
403 case SDLK_LEFT: keysym = QEMU_KEY_CTRL_LEFT; break;
404 case SDLK_RIGHT: keysym = QEMU_KEY_CTRL_RIGHT; break;
405 case SDLK_HOME: keysym = QEMU_KEY_CTRL_HOME; break;
406 case SDLK_END: keysym = QEMU_KEY_CTRL_END; break;
407 case SDLK_PAGEUP: keysym = QEMU_KEY_CTRL_PAGEUP; break;
408 case SDLK_PAGEDOWN: keysym = QEMU_KEY_CTRL_PAGEDOWN; break;
412 switch(ev->key.keysym.sym) {
413 case SDLK_UP: keysym = QEMU_KEY_UP; break;
414 case SDLK_DOWN: keysym = QEMU_KEY_DOWN; break;
415 case SDLK_LEFT: keysym = QEMU_KEY_LEFT; break;
416 case SDLK_RIGHT: keysym = QEMU_KEY_RIGHT; break;
417 case SDLK_HOME: keysym = QEMU_KEY_HOME; break;
418 case SDLK_END: keysym = QEMU_KEY_END; break;
419 case SDLK_PAGEUP: keysym = QEMU_KEY_PAGEUP; break;
420 case SDLK_PAGEDOWN: keysym = QEMU_KEY_PAGEDOWN; break;
421 case SDLK_BACKSPACE: keysym = QEMU_KEY_BACKSPACE; break;
422 case SDLK_DELETE: keysym = QEMU_KEY_DELETE; break;
427 kbd_put_keysym(keysym);
428 } else if (ev->key.keysym.unicode != 0) {
429 kbd_put_keysym(ev->key.keysym.unicode);
432 } else if (ev->type == SDL_KEYUP) {
434 mod_state = (ev->key.keysym.mod & gui_grab_code);
436 mod_state = (ev->key.keysym.mod &
437 (gui_grab_code | KMOD_LSHIFT));
440 if (gui_key_modifier_pressed) {
441 gui_key_modifier_pressed = 0;
442 if (gui_keysym == 0) {
443 /* exit/enter grab if pressing Ctrl-Alt */
445 /* if the application is not active,
446 do not try to enter grab state. It
448 'SDL_WM_GrabInput(SDL_GRAB_ON)'
449 from blocking all the application
451 if (SDL_GetAppState() & SDL_APPACTIVE)
456 /* SDL does not send back all the
457 modifiers key, so we must correct it */
465 if (is_graphic_console() && !gui_keysym)
466 sdl_process_key(&ev->key);
470 qemu_system_shutdown_request();
471 vm_start(); /* In case we're paused */
474 case SDL_MOUSEMOTION:
475 if (gui_grab || kbd_mouse_is_absolute() ||
477 sdl_send_mouse_event(0);
480 case SDL_MOUSEBUTTONDOWN:
481 case SDL_MOUSEBUTTONUP:
483 SDL_MouseButtonEvent *bev = &ev->button;
484 if (!gui_grab && !kbd_mouse_is_absolute()) {
485 if (ev->type == SDL_MOUSEBUTTONDOWN &&
486 (bev->state & SDL_BUTTON_LMASK)) {
487 /* start grabbing all events */
493 #ifdef SDL_BUTTON_WHEELUP
494 if (bev->button == SDL_BUTTON_WHEELUP && ev->type == SDL_MOUSEBUTTONDOWN) {
496 } else if (bev->button == SDL_BUTTON_WHEELDOWN && ev->type == SDL_MOUSEBUTTONDOWN) {
500 sdl_send_mouse_event(dz);
504 case SDL_ACTIVEEVENT:
505 if (gui_grab && ev->active.state == SDL_APPINPUTFOCUS &&
506 !ev->active.gain && !gui_fullscreen_initial_grab) {
516 static void sdl_fill(DisplayState *ds, int x, int y, int w, int h, uint32_t c)
518 SDL_Rect dst = { x, y, w, h };
519 SDL_FillRect(screen, &dst, c);
522 static void sdl_mouse_warp(int x, int y, int on)
527 if (gui_grab || kbd_mouse_is_absolute() || absolute_enabled) {
528 SDL_SetCursor(guest_sprite);
534 guest_x = x, guest_y = y;
537 static void sdl_mouse_define(int width, int height, int bpp,
538 int hot_x, int hot_y,
539 uint8_t *image, uint8_t *mask)
541 uint8_t sprite[256], *line;
542 int x, y, dst, bypl, src = 0;
544 SDL_FreeCursor(guest_sprite);
546 memset(sprite, 0, 256);
547 bypl = ((width * bpp + 31) >> 5) << 2;
548 for (y = 0, dst = 0; y < height; y ++, image += bypl) {
550 for (x = 0; x < width; x ++, dst ++) {
553 src = *(line ++); src |= *(line ++); src |= *(line ++);
557 src = *(line ++); src |= *(line ++);
563 src = 0xf & (line[x >> 1] >> ((x & 1)) << 2);
566 src = 3 & (line[x >> 2] >> ((x & 3)) << 1);
569 src = 1 & (line[x >> 3] >> (x & 7));
573 sprite[dst >> 3] |= (1 << (~dst & 7)) & mask[dst >> 3];
576 guest_sprite = SDL_CreateCursor(sprite, mask, width, height, hot_x, hot_y);
579 (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
580 SDL_SetCursor(guest_sprite);
583 static void sdl_cleanup(void)
586 SDL_FreeCursor(guest_sprite);
590 void sdl_display_init(DisplayState *ds, int full_screen, int no_frame)
595 #if defined(__APPLE__)
596 /* always use generic keymaps */
597 if (!keyboard_layout)
598 keyboard_layout = "en-us";
600 if(keyboard_layout) {
601 kbd_layout = init_keyboard_layout(keyboard_layout);
609 flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
610 if (SDL_Init (flags)) {
611 fprintf(stderr, "Could not initialize SDL - exiting\n");
615 /* NOTE: we still want Ctrl-C to work, so we undo the SDL redirections */
616 signal(SIGINT, SIG_DFL);
617 signal(SIGQUIT, SIG_DFL);
620 ds->dpy_update = sdl_update;
621 ds->dpy_resize = sdl_resize;
622 ds->dpy_refresh = sdl_refresh;
623 ds->dpy_fill = sdl_fill;
624 ds->mouse_set = sdl_mouse_warp;
625 ds->cursor_define = sdl_mouse_define;
627 sdl_resize(ds, 640, 400);
628 sdl_update_caption();
629 SDL_EnableKeyRepeat(250, 50);
630 SDL_EnableUNICODE(1);
633 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0);
634 sdl_cursor_normal = SDL_GetCursor();
639 gui_fullscreen_initial_grab = 1;