kvm: libkvm: substitute is_allocated_mem with more general is_containing_region
[qemu-kvm/fedora.git] / sdl.c
blob15427c5271a58316247c9d3ed9a007d32497b31e
1 /*
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
22 * THE SOFTWARE.
24 #include "qemu-common.h"
25 #include "console.h"
26 #include "sysemu.h"
28 #include <SDL.h>
30 #ifndef _WIN32
31 #include <signal.h>
32 #endif
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)
61 int flags;
63 // printf("resizing to %d %d\n", w, h);
65 flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
66 if (gui_fullscreen)
67 flags |= SDL_FULLSCREEN;
68 if (gui_noframe)
69 flags |= SDL_NOFRAME;
71 width = w;
72 height = h;
74 again:
75 screen = SDL_SetVideoMode(w, h, 0, flags);
76 if (!screen) {
77 fprintf(stderr, "Could not open SDL display\n");
78 exit(1);
80 if (!screen->pixels && (flags & SDL_HWSURFACE) && (flags & SDL_FULLSCREEN)) {
81 flags &= ~SDL_HWSURFACE;
82 goto again;
85 if (!screen->pixels) {
86 fprintf(stderr, "Could not open SDL display\n");
87 exit(1);
89 ds->data = screen->pixels;
90 ds->linesize = screen->pitch;
91 ds->depth = screen->format->BitsPerPixel;
92 /* SDL BitsPerPixel never indicates any values other than
93 multiples of 8, so we need to check for strange depths. */
94 if (ds->depth == 16) {
95 uint32_t mask;
97 mask = screen->format->Rmask;
98 mask |= screen->format->Gmask;
99 mask |= screen->format->Bmask;
100 if ((mask & 0x8000) == 0)
101 ds->depth = 15;
103 if (ds->depth == 32 && screen->format->Rshift == 0) {
104 ds->bgr = 1;
105 } else {
106 ds->bgr = 0;
108 ds->width = w;
109 ds->height = h;
112 /* generic keyboard conversion */
114 #include "sdl_keysym.h"
115 #include "keymaps.c"
117 static kbd_layout_t *kbd_layout = NULL;
119 static uint8_t sdl_keyevent_to_keycode_generic(const SDL_KeyboardEvent *ev)
121 int keysym;
122 /* workaround for X11+SDL bug with AltGR */
123 keysym = ev->keysym.sym;
124 if (keysym == 0 && ev->keysym.scancode == 113)
125 keysym = SDLK_MODE;
126 /* For Japanese key '\' and '|' */
127 if (keysym == 92 && ev->keysym.scancode == 133) {
128 keysym = 0xa5;
130 return keysym2scancode(kbd_layout, keysym);
133 /* specific keyboard conversions from scan codes */
135 #if defined(_WIN32)
137 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
139 return ev->keysym.scancode;
142 #else
144 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
146 int keycode;
148 keycode = ev->keysym.scancode;
150 if (keycode < 9) {
151 keycode = 0;
152 } else if (keycode < 97) {
153 keycode -= 8; /* just an offset */
154 } else if (keycode < 212) {
155 /* use conversion table */
156 keycode = _translate_keycode(keycode - 97);
157 } else {
158 keycode = 0;
160 return keycode;
163 #endif
165 static void reset_keys(void)
167 int i;
168 for(i = 0; i < 256; i++) {
169 if (modifiers_state[i]) {
170 if (i & 0x80)
171 kbd_put_keycode(0xe0);
172 kbd_put_keycode(i | 0x80);
173 modifiers_state[i] = 0;
178 static void sdl_process_key(SDL_KeyboardEvent *ev)
180 int keycode, v;
182 if (ev->keysym.sym == SDLK_PAUSE) {
183 /* specific case */
184 v = 0;
185 if (ev->type == SDL_KEYUP)
186 v |= 0x80;
187 kbd_put_keycode(0xe1);
188 kbd_put_keycode(0x1d | v);
189 kbd_put_keycode(0x45 | v);
190 return;
193 if (kbd_layout) {
194 keycode = sdl_keyevent_to_keycode_generic(ev);
195 } else {
196 keycode = sdl_keyevent_to_keycode(ev);
199 switch(keycode) {
200 case 0x00:
201 /* sent when leaving window: reset the modifiers state */
202 reset_keys();
203 return;
204 case 0x2a: /* Left Shift */
205 case 0x36: /* Right Shift */
206 case 0x1d: /* Left CTRL */
207 case 0x9d: /* Right CTRL */
208 case 0x38: /* Left ALT */
209 case 0xb8: /* Right ALT */
210 if (ev->type == SDL_KEYUP)
211 modifiers_state[keycode] = 0;
212 else
213 modifiers_state[keycode] = 1;
214 break;
215 case 0x45: /* num lock */
216 case 0x3a: /* caps lock */
217 /* SDL does not send the key up event, so we generate it */
218 kbd_put_keycode(keycode);
219 kbd_put_keycode(keycode | 0x80);
220 return;
223 /* now send the key code */
224 if (keycode & 0x80)
225 kbd_put_keycode(0xe0);
226 if (ev->type == SDL_KEYUP)
227 kbd_put_keycode(keycode | 0x80);
228 else
229 kbd_put_keycode(keycode & 0x7f);
232 static void sdl_update_caption(void)
234 char buf[1024];
235 const char *status = "";
237 if (!vm_running)
238 status = " [Stopped]";
239 else if (gui_grab) {
240 if (!alt_grab)
241 status = " - Press Ctrl-Alt to exit grab";
242 else
243 status = " - Press Ctrl-Alt-Shift to exit grab";
246 if (qemu_name)
247 snprintf(buf, sizeof(buf), "QEMU (%s)%s", qemu_name, status);
248 else
249 snprintf(buf, sizeof(buf), "QEMU%s", status);
251 SDL_WM_SetCaption(buf, "QEMU");
254 static void sdl_hide_cursor(void)
256 if (!cursor_hide)
257 return;
259 if (kbd_mouse_is_absolute()) {
260 SDL_ShowCursor(1);
261 SDL_SetCursor(sdl_cursor_hidden);
262 } else {
263 SDL_ShowCursor(0);
267 static void sdl_show_cursor(void)
269 if (!cursor_hide)
270 return;
272 if (!kbd_mouse_is_absolute()) {
273 SDL_ShowCursor(1);
274 if (guest_cursor &&
275 (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
276 SDL_SetCursor(guest_sprite);
277 else
278 SDL_SetCursor(sdl_cursor_normal);
282 static void sdl_grab_start(void)
284 if (guest_cursor) {
285 SDL_SetCursor(guest_sprite);
286 SDL_WarpMouse(guest_x, guest_y);
287 } else
288 sdl_hide_cursor();
289 SDL_WM_GrabInput(SDL_GRAB_ON);
290 gui_grab = 1;
291 sdl_update_caption();
294 static void sdl_grab_end(void)
296 SDL_WM_GrabInput(SDL_GRAB_OFF);
297 gui_grab = 0;
298 sdl_show_cursor();
299 sdl_update_caption();
302 static void sdl_send_mouse_event(int dx, int dy, int dz, int x, int y, int state)
304 int buttons;
305 buttons = 0;
306 if (state & SDL_BUTTON(SDL_BUTTON_LEFT))
307 buttons |= MOUSE_EVENT_LBUTTON;
308 if (state & SDL_BUTTON(SDL_BUTTON_RIGHT))
309 buttons |= MOUSE_EVENT_RBUTTON;
310 if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE))
311 buttons |= MOUSE_EVENT_MBUTTON;
313 if (kbd_mouse_is_absolute()) {
314 if (!absolute_enabled) {
315 sdl_hide_cursor();
316 if (gui_grab) {
317 sdl_grab_end();
319 absolute_enabled = 1;
322 dx = x * 0x7FFF / (width - 1);
323 dy = y * 0x7FFF / (height - 1);
324 } else if (absolute_enabled) {
325 sdl_show_cursor();
326 absolute_enabled = 0;
327 } else if (guest_cursor) {
328 x -= guest_x;
329 y -= guest_y;
330 guest_x += x;
331 guest_y += y;
332 dx = x;
333 dy = y;
336 kbd_mouse_event(dx, dy, dz, buttons);
339 static void toggle_full_screen(DisplayState *ds)
341 gui_fullscreen = !gui_fullscreen;
342 sdl_resize(ds, screen->w, screen->h);
343 if (gui_fullscreen) {
344 gui_saved_grab = gui_grab;
345 sdl_grab_start();
346 } else {
347 if (!gui_saved_grab)
348 sdl_grab_end();
350 vga_hw_invalidate();
351 vga_hw_update();
354 static void sdl_refresh(DisplayState *ds)
356 SDL_Event ev1, *ev = &ev1;
357 int mod_state;
358 int buttonstate = SDL_GetMouseState(NULL, NULL);
360 if (last_vm_running != vm_running) {
361 last_vm_running = vm_running;
362 sdl_update_caption();
365 vga_hw_update();
366 SDL_EnableUNICODE(!is_graphic_console());
368 while (SDL_PollEvent(ev)) {
369 switch (ev->type) {
370 case SDL_VIDEOEXPOSE:
371 sdl_update(ds, 0, 0, screen->w, screen->h);
372 break;
373 case SDL_KEYDOWN:
374 case SDL_KEYUP:
375 if (ev->type == SDL_KEYDOWN) {
376 if (!alt_grab) {
377 mod_state = (SDL_GetModState() & gui_grab_code) ==
378 gui_grab_code;
379 } else {
380 mod_state = (SDL_GetModState() & (gui_grab_code | KMOD_LSHIFT)) ==
381 (gui_grab_code | KMOD_LSHIFT);
383 gui_key_modifier_pressed = mod_state;
384 if (gui_key_modifier_pressed) {
385 int keycode;
386 keycode = sdl_keyevent_to_keycode(&ev->key);
387 switch(keycode) {
388 case 0x21: /* 'f' key on US keyboard */
389 toggle_full_screen(ds);
390 gui_keysym = 1;
391 break;
392 case 0x02 ... 0x0a: /* '1' to '9' keys */
393 /* Reset the modifiers sent to the current console */
394 reset_keys();
395 console_select(keycode - 0x02);
396 if (!is_graphic_console()) {
397 /* display grab if going to a text console */
398 if (gui_grab)
399 sdl_grab_end();
401 gui_keysym = 1;
402 break;
403 default:
404 break;
406 } else if (!is_graphic_console()) {
407 int keysym;
408 keysym = 0;
409 if (ev->key.keysym.mod & (KMOD_LCTRL | KMOD_RCTRL)) {
410 switch(ev->key.keysym.sym) {
411 case SDLK_UP: keysym = QEMU_KEY_CTRL_UP; break;
412 case SDLK_DOWN: keysym = QEMU_KEY_CTRL_DOWN; break;
413 case SDLK_LEFT: keysym = QEMU_KEY_CTRL_LEFT; break;
414 case SDLK_RIGHT: keysym = QEMU_KEY_CTRL_RIGHT; break;
415 case SDLK_HOME: keysym = QEMU_KEY_CTRL_HOME; break;
416 case SDLK_END: keysym = QEMU_KEY_CTRL_END; break;
417 case SDLK_PAGEUP: keysym = QEMU_KEY_CTRL_PAGEUP; break;
418 case SDLK_PAGEDOWN: keysym = QEMU_KEY_CTRL_PAGEDOWN; break;
419 default: break;
421 } else {
422 switch(ev->key.keysym.sym) {
423 case SDLK_UP: keysym = QEMU_KEY_UP; break;
424 case SDLK_DOWN: keysym = QEMU_KEY_DOWN; break;
425 case SDLK_LEFT: keysym = QEMU_KEY_LEFT; break;
426 case SDLK_RIGHT: keysym = QEMU_KEY_RIGHT; break;
427 case SDLK_HOME: keysym = QEMU_KEY_HOME; break;
428 case SDLK_END: keysym = QEMU_KEY_END; break;
429 case SDLK_PAGEUP: keysym = QEMU_KEY_PAGEUP; break;
430 case SDLK_PAGEDOWN: keysym = QEMU_KEY_PAGEDOWN; break;
431 case SDLK_BACKSPACE: keysym = QEMU_KEY_BACKSPACE; break;
432 case SDLK_DELETE: keysym = QEMU_KEY_DELETE; break;
433 default: break;
436 if (keysym) {
437 kbd_put_keysym(keysym);
438 } else if (ev->key.keysym.unicode != 0) {
439 kbd_put_keysym(ev->key.keysym.unicode);
442 } else if (ev->type == SDL_KEYUP) {
443 if (!alt_grab) {
444 mod_state = (ev->key.keysym.mod & gui_grab_code);
445 } else {
446 mod_state = (ev->key.keysym.mod &
447 (gui_grab_code | KMOD_LSHIFT));
449 if (!mod_state) {
450 if (gui_key_modifier_pressed) {
451 gui_key_modifier_pressed = 0;
452 if (gui_keysym == 0) {
453 /* exit/enter grab if pressing Ctrl-Alt */
454 if (!gui_grab) {
455 /* if the application is not active,
456 do not try to enter grab state. It
457 prevents
458 'SDL_WM_GrabInput(SDL_GRAB_ON)'
459 from blocking all the application
460 (SDL bug). */
461 if (SDL_GetAppState() & SDL_APPACTIVE)
462 sdl_grab_start();
463 } else {
464 sdl_grab_end();
466 /* SDL does not send back all the
467 modifiers key, so we must correct it */
468 reset_keys();
469 break;
471 gui_keysym = 0;
475 if (is_graphic_console() && !gui_keysym)
476 sdl_process_key(&ev->key);
477 break;
478 case SDL_QUIT:
479 if (!no_quit)
480 qemu_system_shutdown_request();
481 break;
482 case SDL_MOUSEMOTION:
483 if (gui_grab || kbd_mouse_is_absolute() ||
484 absolute_enabled) {
485 sdl_send_mouse_event(ev->motion.xrel, ev->motion.yrel, 0,
486 ev->motion.x, ev->motion.y, ev->motion.state);
488 break;
489 case SDL_MOUSEBUTTONDOWN:
490 case SDL_MOUSEBUTTONUP:
492 SDL_MouseButtonEvent *bev = &ev->button;
493 if (!gui_grab && !kbd_mouse_is_absolute()) {
494 if (ev->type == SDL_MOUSEBUTTONDOWN &&
495 (bev->button == SDL_BUTTON_LEFT)) {
496 /* start grabbing all events */
497 sdl_grab_start();
499 } else {
500 int dz;
501 dz = 0;
502 if (ev->type == SDL_MOUSEBUTTONDOWN) {
503 buttonstate |= SDL_BUTTON(bev->button);
504 } else {
505 buttonstate &= ~SDL_BUTTON(bev->button);
507 #ifdef SDL_BUTTON_WHEELUP
508 if (bev->button == SDL_BUTTON_WHEELUP && ev->type == SDL_MOUSEBUTTONDOWN) {
509 dz = -1;
510 } else if (bev->button == SDL_BUTTON_WHEELDOWN && ev->type == SDL_MOUSEBUTTONDOWN) {
511 dz = 1;
513 #endif
514 sdl_send_mouse_event(0, 0, dz, bev->x, bev->y, buttonstate);
517 break;
518 case SDL_ACTIVEEVENT:
519 if (gui_grab && ev->active.state == SDL_APPINPUTFOCUS &&
520 !ev->active.gain && !gui_fullscreen_initial_grab) {
521 sdl_grab_end();
523 if (ev->active.state & SDL_APPACTIVE) {
524 if (ev->active.gain) {
525 /* Back to default interval */
526 ds->gui_timer_interval = 0;
527 ds->idle = 0;
528 } else {
529 /* Sleeping interval */
530 ds->gui_timer_interval = 500;
531 ds->idle = 1;
534 break;
535 default:
536 break;
541 static void sdl_fill(DisplayState *ds, int x, int y, int w, int h, uint32_t c)
543 SDL_Rect dst = { x, y, w, h };
544 SDL_FillRect(screen, &dst, c);
547 static void sdl_mouse_warp(int x, int y, int on)
549 if (on) {
550 if (!guest_cursor)
551 sdl_show_cursor();
552 if (gui_grab || kbd_mouse_is_absolute() || absolute_enabled) {
553 SDL_SetCursor(guest_sprite);
554 SDL_WarpMouse(x, y);
556 } else if (gui_grab)
557 sdl_hide_cursor();
558 guest_cursor = on;
559 guest_x = x, guest_y = y;
562 static void sdl_mouse_define(int width, int height, int bpp,
563 int hot_x, int hot_y,
564 uint8_t *image, uint8_t *mask)
566 uint8_t sprite[256], *line;
567 int x, y, dst, bypl, src = 0;
568 if (guest_sprite)
569 SDL_FreeCursor(guest_sprite);
571 memset(sprite, 0, 256);
572 bypl = ((width * bpp + 31) >> 5) << 2;
573 for (y = 0, dst = 0; y < height; y ++, image += bypl) {
574 line = image;
575 for (x = 0; x < width; x ++, dst ++) {
576 switch (bpp) {
577 case 24:
578 src = *(line ++); src |= *(line ++); src |= *(line ++);
579 break;
580 case 16:
581 case 15:
582 src = *(line ++); src |= *(line ++);
583 break;
584 case 8:
585 src = *(line ++);
586 break;
587 case 4:
588 src = 0xf & (line[x >> 1] >> ((x & 1)) << 2);
589 break;
590 case 2:
591 src = 3 & (line[x >> 2] >> ((x & 3)) << 1);
592 break;
593 case 1:
594 src = 1 & (line[x >> 3] >> (x & 7));
595 break;
597 if (!src)
598 sprite[dst >> 3] |= (1 << (~dst & 7)) & mask[dst >> 3];
601 guest_sprite = SDL_CreateCursor(sprite, mask, width, height, hot_x, hot_y);
603 if (guest_cursor &&
604 (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
605 SDL_SetCursor(guest_sprite);
608 static void sdl_cleanup(void)
610 if (guest_sprite)
611 SDL_FreeCursor(guest_sprite);
612 SDL_Quit();
615 void sdl_display_init(DisplayState *ds, int full_screen, int no_frame)
617 int flags;
618 uint8_t data = 0;
620 #if defined(__APPLE__)
621 /* always use generic keymaps */
622 if (!keyboard_layout)
623 keyboard_layout = "en-us";
624 #endif
625 if(keyboard_layout) {
626 kbd_layout = init_keyboard_layout(keyboard_layout);
627 if (!kbd_layout)
628 exit(1);
631 if (no_frame)
632 gui_noframe = 1;
634 flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
635 if (SDL_Init (flags)) {
636 fprintf(stderr, "Could not initialize SDL - exiting\n");
637 exit(1);
640 ds->dpy_update = sdl_update;
641 ds->dpy_resize = sdl_resize;
642 ds->dpy_refresh = sdl_refresh;
643 ds->dpy_fill = sdl_fill;
644 ds->mouse_set = sdl_mouse_warp;
645 ds->cursor_define = sdl_mouse_define;
647 sdl_resize(ds, 640, 400);
648 sdl_update_caption();
649 SDL_EnableKeyRepeat(250, 50);
650 gui_grab = 0;
652 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0);
653 sdl_cursor_normal = SDL_GetCursor();
655 atexit(sdl_cleanup);
656 if (full_screen) {
657 gui_fullscreen = 1;
658 gui_fullscreen_initial_grab = 1;
659 sdl_grab_start();