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
32 static SDL_Surface *screen;
33 static int gui_grab; /* if true, all keyboard/mouse events are grabbed */
34 static int last_vm_running;
35 static int gui_saved_grab;
36 static int gui_fullscreen;
37 static int gui_noframe;
38 static int gui_key_modifier_pressed;
39 static int gui_keysym;
40 static int gui_fullscreen_initial_grab;
41 static int gui_grab_code = KMOD_LALT | KMOD_LCTRL;
42 static uint8_t modifiers_state[256];
43 static int width, height;
44 static SDL_Cursor *sdl_cursor_normal;
45 static SDL_Cursor *sdl_cursor_hidden;
46 static int absolute_enabled = 0;
47 static int guest_cursor = 0;
48 static int guest_x, guest_y;
49 static SDL_Cursor *guest_sprite = 0;
51 static void sdl_update(DisplayState *ds, int x, int y, int w, int h)
53 // printf("updating x=%d y=%d w=%d h=%d\n", x, y, w, h);
54 SDL_UpdateRect(screen, x, y, w, h);
57 static void sdl_resize(DisplayState *ds, int w, int h)
61 // printf("resizing to %d %d\n", w, h);
63 flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
65 flags |= SDL_FULLSCREEN;
73 screen = SDL_SetVideoMode(w, h, 0, flags);
75 fprintf(stderr, "Could not open SDL display\n");
78 if (!screen->pixels && (flags & SDL_HWSURFACE) && (flags & SDL_FULLSCREEN)) {
79 flags &= ~SDL_HWSURFACE;
83 if (!screen->pixels) {
84 fprintf(stderr, "Could not open SDL display\n");
87 ds->data = screen->pixels;
88 ds->linesize = screen->pitch;
89 ds->depth = screen->format->BitsPerPixel;
90 if (screen->format->Bshift > screen->format->Rshift) {
99 /* generic keyboard conversion */
101 #include "sdl_keysym.h"
104 static kbd_layout_t *kbd_layout = NULL;
106 static uint8_t sdl_keyevent_to_keycode_generic(const SDL_KeyboardEvent *ev)
109 /* workaround for X11+SDL bug with AltGR */
110 keysym = ev->keysym.sym;
111 if (keysym == 0 && ev->keysym.scancode == 113)
113 /* For Japanese key '\' and '|' */
114 if (keysym == 92 && ev->keysym.scancode == 133) {
117 return keysym2scancode(kbd_layout, keysym);
120 /* specific keyboard conversions from scan codes */
124 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
126 return ev->keysym.scancode;
131 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
135 keycode = ev->keysym.scancode;
139 } else if (keycode < 97) {
140 keycode -= 8; /* just an offset */
141 } else if (keycode < 212) {
142 /* use conversion table */
143 keycode = _translate_keycode(keycode - 97);
152 static void reset_keys(void)
155 for(i = 0; i < 256; i++) {
156 if (modifiers_state[i]) {
158 kbd_put_keycode(0xe0);
159 kbd_put_keycode(i | 0x80);
160 modifiers_state[i] = 0;
165 static void sdl_process_key(SDL_KeyboardEvent *ev)
169 if (ev->keysym.sym == SDLK_PAUSE) {
172 if (ev->type == SDL_KEYUP)
174 kbd_put_keycode(0xe1);
175 kbd_put_keycode(0x1d | v);
176 kbd_put_keycode(0x45 | v);
181 keycode = sdl_keyevent_to_keycode_generic(ev);
183 keycode = sdl_keyevent_to_keycode(ev);
188 /* sent when leaving window: reset the modifiers state */
191 case 0x2a: /* Left Shift */
192 case 0x36: /* Right Shift */
193 case 0x1d: /* Left CTRL */
194 case 0x9d: /* Right CTRL */
195 case 0x38: /* Left ALT */
196 case 0xb8: /* Right ALT */
197 if (ev->type == SDL_KEYUP)
198 modifiers_state[keycode] = 0;
200 modifiers_state[keycode] = 1;
202 case 0x45: /* num lock */
203 case 0x3a: /* caps lock */
204 /* SDL does not send the key up event, so we generate it */
205 kbd_put_keycode(keycode);
206 kbd_put_keycode(keycode | 0x80);
210 /* now send the key code */
212 kbd_put_keycode(0xe0);
213 if (ev->type == SDL_KEYUP)
214 kbd_put_keycode(keycode | 0x80);
216 kbd_put_keycode(keycode & 0x7f);
219 static void sdl_update_caption(void)
222 const char *status = "";
225 status = " [Stopped]";
227 status = " - Press Ctrl-Alt to exit grab";
230 snprintf(buf, sizeof(buf), "QEMU (%s)%s", qemu_name, status);
232 snprintf(buf, sizeof(buf), "QEMU%s", status);
234 SDL_WM_SetCaption(buf, "QEMU");
237 static void sdl_hide_cursor(void)
242 if (kbd_mouse_is_absolute()) {
244 SDL_SetCursor(sdl_cursor_hidden);
250 static void sdl_show_cursor(void)
255 if (!kbd_mouse_is_absolute()) {
258 (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
259 SDL_SetCursor(guest_sprite);
261 SDL_SetCursor(sdl_cursor_normal);
265 static void sdl_grab_start(void)
268 SDL_SetCursor(guest_sprite);
269 SDL_WarpMouse(guest_x, guest_y);
272 SDL_WM_GrabInput(SDL_GRAB_ON);
273 /* dummy read to avoid moving the mouse */
274 SDL_GetRelativeMouseState(NULL, NULL);
276 sdl_update_caption();
279 static void sdl_grab_end(void)
281 SDL_WM_GrabInput(SDL_GRAB_OFF);
284 sdl_update_caption();
287 static void sdl_send_mouse_event(int dz)
289 int dx, dy, state, buttons;
290 state = SDL_GetRelativeMouseState(&dx, &dy);
292 if (state & SDL_BUTTON(SDL_BUTTON_LEFT))
293 buttons |= MOUSE_EVENT_LBUTTON;
294 if (state & SDL_BUTTON(SDL_BUTTON_RIGHT))
295 buttons |= MOUSE_EVENT_RBUTTON;
296 if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE))
297 buttons |= MOUSE_EVENT_MBUTTON;
299 if (kbd_mouse_is_absolute()) {
300 if (!absolute_enabled) {
305 absolute_enabled = 1;
308 SDL_GetMouseState(&dx, &dy);
309 dx = dx * 0x7FFF / width;
310 dy = dy * 0x7FFF / height;
311 } else if (absolute_enabled) {
313 absolute_enabled = 0;
314 } else if (guest_cursor) {
315 SDL_GetMouseState(&dx, &dy);
322 kbd_mouse_event(dx, dy, dz, buttons);
325 static void toggle_full_screen(DisplayState *ds)
327 gui_fullscreen = !gui_fullscreen;
328 sdl_resize(ds, screen->w, screen->h);
329 if (gui_fullscreen) {
330 gui_saved_grab = gui_grab;
340 static void sdl_refresh(DisplayState *ds)
342 SDL_Event ev1, *ev = &ev1;
345 if (last_vm_running != vm_running) {
346 last_vm_running = vm_running;
347 sdl_update_caption();
352 while (SDL_PollEvent(ev)) {
354 case SDL_VIDEOEXPOSE:
355 sdl_update(ds, 0, 0, screen->w, screen->h);
359 if (ev->type == SDL_KEYDOWN) {
360 mod_state = (SDL_GetModState() & gui_grab_code) ==
362 gui_key_modifier_pressed = mod_state;
363 if (gui_key_modifier_pressed) {
365 keycode = sdl_keyevent_to_keycode(&ev->key);
367 case 0x21: /* 'f' key on US keyboard */
368 toggle_full_screen(ds);
371 case 0x02 ... 0x0a: /* '1' to '9' keys */
372 /* Reset the modifiers sent to the current console */
374 console_select(keycode - 0x02);
375 if (!is_graphic_console()) {
376 /* display grab if going to a text console */
385 } else if (!is_graphic_console()) {
388 if (ev->key.keysym.mod & (KMOD_LCTRL | KMOD_RCTRL)) {
389 switch(ev->key.keysym.sym) {
390 case SDLK_UP: keysym = QEMU_KEY_CTRL_UP; break;
391 case SDLK_DOWN: keysym = QEMU_KEY_CTRL_DOWN; break;
392 case SDLK_LEFT: keysym = QEMU_KEY_CTRL_LEFT; break;
393 case SDLK_RIGHT: keysym = QEMU_KEY_CTRL_RIGHT; break;
394 case SDLK_HOME: keysym = QEMU_KEY_CTRL_HOME; break;
395 case SDLK_END: keysym = QEMU_KEY_CTRL_END; break;
396 case SDLK_PAGEUP: keysym = QEMU_KEY_CTRL_PAGEUP; break;
397 case SDLK_PAGEDOWN: keysym = QEMU_KEY_CTRL_PAGEDOWN; break;
401 switch(ev->key.keysym.sym) {
402 case SDLK_UP: keysym = QEMU_KEY_UP; break;
403 case SDLK_DOWN: keysym = QEMU_KEY_DOWN; break;
404 case SDLK_LEFT: keysym = QEMU_KEY_LEFT; break;
405 case SDLK_RIGHT: keysym = QEMU_KEY_RIGHT; break;
406 case SDLK_HOME: keysym = QEMU_KEY_HOME; break;
407 case SDLK_END: keysym = QEMU_KEY_END; break;
408 case SDLK_PAGEUP: keysym = QEMU_KEY_PAGEUP; break;
409 case SDLK_PAGEDOWN: keysym = QEMU_KEY_PAGEDOWN; break;
410 case SDLK_BACKSPACE: keysym = QEMU_KEY_BACKSPACE; break;
411 case SDLK_DELETE: keysym = QEMU_KEY_DELETE; break;
416 kbd_put_keysym(keysym);
417 } else if (ev->key.keysym.unicode != 0) {
418 kbd_put_keysym(ev->key.keysym.unicode);
421 } else if (ev->type == SDL_KEYUP) {
422 mod_state = (ev->key.keysym.mod & gui_grab_code);
424 if (gui_key_modifier_pressed) {
425 gui_key_modifier_pressed = 0;
426 if (gui_keysym == 0) {
427 /* exit/enter grab if pressing Ctrl-Alt */
429 /* if the application is not active,
430 do not try to enter grab state. It
432 'SDL_WM_GrabInput(SDL_GRAB_ON)'
433 from blocking all the application
435 if (SDL_GetAppState() & SDL_APPACTIVE)
440 /* SDL does not send back all the
441 modifiers key, so we must correct it */
449 if (is_graphic_console() && !gui_keysym)
450 sdl_process_key(&ev->key);
454 qemu_system_shutdown_request();
457 case SDL_MOUSEMOTION:
458 if (gui_grab || kbd_mouse_is_absolute() ||
460 sdl_send_mouse_event(0);
463 case SDL_MOUSEBUTTONDOWN:
464 case SDL_MOUSEBUTTONUP:
466 SDL_MouseButtonEvent *bev = &ev->button;
467 if (!gui_grab && !kbd_mouse_is_absolute()) {
468 if (ev->type == SDL_MOUSEBUTTONDOWN &&
469 (bev->state & SDL_BUTTON_LMASK)) {
470 /* start grabbing all events */
476 #ifdef SDL_BUTTON_WHEELUP
477 if (bev->button == SDL_BUTTON_WHEELUP && ev->type == SDL_MOUSEBUTTONDOWN) {
479 } else if (bev->button == SDL_BUTTON_WHEELDOWN && ev->type == SDL_MOUSEBUTTONDOWN) {
483 sdl_send_mouse_event(dz);
487 case SDL_ACTIVEEVENT:
488 if (gui_grab && ev->active.state == SDL_APPINPUTFOCUS &&
489 !ev->active.gain && !gui_fullscreen_initial_grab) {
499 static void sdl_fill(DisplayState *ds, int x, int y, int w, int h, uint32_t c)
501 SDL_Rect dst = { x, y, w, h };
502 SDL_FillRect(screen, &dst, c);
505 static void sdl_mouse_warp(int x, int y, int on)
510 if (gui_grab || kbd_mouse_is_absolute() || absolute_enabled) {
511 SDL_SetCursor(guest_sprite);
517 guest_x = x, guest_y = y;
520 static void sdl_mouse_define(int width, int height, int bpp,
521 int hot_x, int hot_y,
522 uint8_t *image, uint8_t *mask)
524 uint8_t sprite[256], *line;
525 int x, y, dst, bypl, src = 0;
527 SDL_FreeCursor(guest_sprite);
529 memset(sprite, 0, 256);
530 bypl = ((width * bpp + 31) >> 5) << 2;
531 for (y = 0, dst = 0; y < height; y ++, image += bypl) {
533 for (x = 0; x < width; x ++, dst ++) {
536 src = *(line ++); src |= *(line ++); src |= *(line ++);
540 src = *(line ++); src |= *(line ++);
546 src = 0xf & (line[x >> 1] >> ((x & 1)) << 2);
549 src = 3 & (line[x >> 2] >> ((x & 3)) << 1);
552 src = 1 & (line[x >> 3] >> (x & 7));
556 sprite[dst >> 3] |= (1 << (~dst & 7)) & mask[dst >> 3];
559 guest_sprite = SDL_CreateCursor(sprite, mask, width, height, hot_x, hot_y);
562 (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
563 SDL_SetCursor(guest_sprite);
566 static void sdl_cleanup(void)
569 SDL_FreeCursor(guest_sprite);
573 void sdl_display_init(DisplayState *ds, int full_screen, int no_frame)
578 #if defined(__APPLE__)
579 /* always use generic keymaps */
580 if (!keyboard_layout)
581 keyboard_layout = "en-us";
583 if(keyboard_layout) {
584 kbd_layout = init_keyboard_layout(keyboard_layout);
592 flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
593 if (SDL_Init (flags)) {
594 fprintf(stderr, "Could not initialize SDL - exiting\n");
598 /* NOTE: we still want Ctrl-C to work, so we undo the SDL redirections */
599 signal(SIGINT, SIG_DFL);
600 signal(SIGQUIT, SIG_DFL);
603 ds->dpy_update = sdl_update;
604 ds->dpy_resize = sdl_resize;
605 ds->dpy_refresh = sdl_refresh;
606 ds->dpy_fill = sdl_fill;
607 ds->mouse_set = sdl_mouse_warp;
608 ds->cursor_define = sdl_mouse_define;
610 sdl_resize(ds, 640, 400);
611 sdl_update_caption();
612 SDL_EnableKeyRepeat(250, 50);
613 SDL_EnableUNICODE(1);
616 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0);
617 sdl_cursor_normal = SDL_GetCursor();
622 gui_fullscreen_initial_grab = 1;