Statistics
| Branch: | Revision:

root / sdl.c @ 87ecb68b

History | View | Annotate | Download (19.2 kB)

1
/*
2
 * QEMU SDL display driver
3
 *
4
 * Copyright (c) 2003 Fabrice Bellard
5
 *
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:
12
 *
13
 * The above copyright notice and this permission notice shall be included in
14
 * all copies or substantial portions of the Software.
15
 *
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.
23
 */
24
#include "qemu-common.h"
25
#include "console.h"
26
#include "sysemu.h"
27

    
28
#include <SDL.h>
29

    
30
#ifndef _WIN32
31
#include <signal.h>
32
#endif
33

    
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;
52

    
53
static void sdl_update(DisplayState *ds, int x, int y, int w, int h)
54
{
55
    //    printf("updating x=%d y=%d w=%d h=%d\n", x, y, w, h);
56
    SDL_UpdateRect(screen, x, y, w, h);
57
}
58

    
59
static void sdl_resize(DisplayState *ds, int w, int h)
60
{
61
    int flags;
62

    
63
    //    printf("resizing to %d %d\n", w, h);
64

    
65
    flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
66
    if (gui_fullscreen)
67
        flags |= SDL_FULLSCREEN;
68
    if (gui_noframe)
69
        flags |= SDL_NOFRAME;
70

    
71
    width = w;
72
    height = h;
73

    
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);
79
    }
80
    if (!screen->pixels && (flags & SDL_HWSURFACE) && (flags & SDL_FULLSCREEN)) {
81
        flags &= ~SDL_HWSURFACE;
82
        goto again;
83
    }
84

    
85
    if (!screen->pixels) {
86
        fprintf(stderr, "Could not open SDL display\n");
87
        exit(1);
88
    }
89
    ds->data = screen->pixels;
90
    ds->linesize = screen->pitch;
91
    ds->depth = screen->format->BitsPerPixel;
92
    if (screen->format->Bshift > screen->format->Rshift) {
93
        ds->bgr = 1;
94
    } else {
95
        ds->bgr = 0;
96
    }
97
    ds->width = w;
98
    ds->height = h;
99
}
100

    
101
/* generic keyboard conversion */
102

    
103
#include "sdl_keysym.h"
104
#include "keymaps.c"
105

    
106
static kbd_layout_t *kbd_layout = NULL;
107

    
108
static uint8_t sdl_keyevent_to_keycode_generic(const SDL_KeyboardEvent *ev)
109
{
110
    int keysym;
111
    /* workaround for X11+SDL bug with AltGR */
112
    keysym = ev->keysym.sym;
113
    if (keysym == 0 && ev->keysym.scancode == 113)
114
        keysym = SDLK_MODE;
115
    /* For Japanese key '\' and '|' */
116
    if (keysym == 92 && ev->keysym.scancode == 133) {
117
        keysym = 0xa5;
118
    }
119
    return keysym2scancode(kbd_layout, keysym);
120
}
121

    
122
/* specific keyboard conversions from scan codes */
123

    
124
#if defined(_WIN32)
125

    
126
static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
127
{
128
    return ev->keysym.scancode;
129
}
130

    
131
#else
132

    
133
static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
134
{
135
    int keycode;
136

    
137
    keycode = ev->keysym.scancode;
138

    
139
    if (keycode < 9) {
140
        keycode = 0;
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);
146
    } else {
147
        keycode = 0;
148
    }
149
    return keycode;
150
}
151

    
152
#endif
153

    
154
static void reset_keys(void)
155
{
156
    int i;
157
    for(i = 0; i < 256; i++) {
158
        if (modifiers_state[i]) {
159
            if (i & 0x80)
160
                kbd_put_keycode(0xe0);
161
            kbd_put_keycode(i | 0x80);
162
            modifiers_state[i] = 0;
163
        }
164
    }
165
}
166

    
167
static void sdl_process_key(SDL_KeyboardEvent *ev)
168
{
169
    int keycode, v;
170

    
171
    if (ev->keysym.sym == SDLK_PAUSE) {
172
        /* specific case */
173
        v = 0;
174
        if (ev->type == SDL_KEYUP)
175
            v |= 0x80;
176
        kbd_put_keycode(0xe1);
177
        kbd_put_keycode(0x1d | v);
178
        kbd_put_keycode(0x45 | v);
179
        return;
180
    }
181

    
182
    if (kbd_layout) {
183
        keycode = sdl_keyevent_to_keycode_generic(ev);
184
    } else {
185
        keycode = sdl_keyevent_to_keycode(ev);
186
    }
187

    
188
    switch(keycode) {
189
    case 0x00:
190
        /* sent when leaving window: reset the modifiers state */
191
        reset_keys();
192
        return;
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;
201
        else
202
            modifiers_state[keycode] = 1;
203
        break;
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);
209
        return;
210
    }
211

    
212
    /* now send the key code */
213
    if (keycode & 0x80)
214
        kbd_put_keycode(0xe0);
215
    if (ev->type == SDL_KEYUP)
216
        kbd_put_keycode(keycode | 0x80);
217
    else
218
        kbd_put_keycode(keycode & 0x7f);
219
}
220

    
221
static void sdl_update_caption(void)
222
{
223
    char buf[1024];
224
    const char *status = "";
225

    
226
    if (!vm_running)
227
        status = " [Stopped]";
228
    else if (gui_grab) {
229
        if (!alt_grab)
230
            status = " - Press Ctrl-Alt to exit grab";
231
        else
232
            status = " - Press Ctrl-Alt-Shift to exit grab";
233
    }
234

    
235
    if (qemu_name)
236
        snprintf(buf, sizeof(buf), "QEMU (%s)%s", qemu_name, status);
237
    else
238
        snprintf(buf, sizeof(buf), "QEMU%s", status);
239

    
240
    SDL_WM_SetCaption(buf, "QEMU");
241
}
242

    
243
static void sdl_hide_cursor(void)
244
{
245
    if (!cursor_hide)
246
        return;
247

    
248
    if (kbd_mouse_is_absolute()) {
249
        SDL_ShowCursor(1);
250
        SDL_SetCursor(sdl_cursor_hidden);
251
    } else {
252
        SDL_ShowCursor(0);
253
    }
254
}
255

    
256
static void sdl_show_cursor(void)
257
{
258
    if (!cursor_hide)
259
        return;
260

    
261
    if (!kbd_mouse_is_absolute()) {
262
        SDL_ShowCursor(1);
263
        if (guest_cursor &&
264
                (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
265
            SDL_SetCursor(guest_sprite);
266
        else
267
            SDL_SetCursor(sdl_cursor_normal);
268
    }
269
}
270

    
271
static void sdl_grab_start(void)
272
{
273
    if (guest_cursor) {
274
        SDL_SetCursor(guest_sprite);
275
        SDL_WarpMouse(guest_x, guest_y);
276
    } else
277
        sdl_hide_cursor();
278
    SDL_WM_GrabInput(SDL_GRAB_ON);
279
    /* dummy read to avoid moving the mouse */
280
    SDL_GetRelativeMouseState(NULL, NULL);
281
    gui_grab = 1;
282
    sdl_update_caption();
283
}
284

    
285
static void sdl_grab_end(void)
286
{
287
    SDL_WM_GrabInput(SDL_GRAB_OFF);
288
    gui_grab = 0;
289
    sdl_show_cursor();
290
    sdl_update_caption();
291
}
292

    
293
static void sdl_send_mouse_event(int dz)
294
{
295
    int dx, dy, state, buttons;
296
    state = SDL_GetRelativeMouseState(&dx, &dy);
297
    buttons = 0;
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;
304

    
305
    if (kbd_mouse_is_absolute()) {
306
        if (!absolute_enabled) {
307
            sdl_hide_cursor();
308
            if (gui_grab) {
309
                sdl_grab_end();
310
            }
311
            absolute_enabled = 1;
312
        }
313

    
314
        SDL_GetMouseState(&dx, &dy);
315
        dx = dx * 0x7FFF / width;
316
        dy = dy * 0x7FFF / height;
317
    } else if (absolute_enabled) {
318
        sdl_show_cursor();
319
        absolute_enabled = 0;
320
    } else if (guest_cursor) {
321
        SDL_GetMouseState(&dx, &dy);
322
        dx -= guest_x;
323
        dy -= guest_y;
324
        guest_x += dx;
325
        guest_y += dy;
326
    }
327

    
328
    kbd_mouse_event(dx, dy, dz, buttons);
329
}
330

    
331
static void toggle_full_screen(DisplayState *ds)
332
{
333
    gui_fullscreen = !gui_fullscreen;
334
    sdl_resize(ds, screen->w, screen->h);
335
    if (gui_fullscreen) {
336
        gui_saved_grab = gui_grab;
337
        sdl_grab_start();
338
    } else {
339
        if (!gui_saved_grab)
340
            sdl_grab_end();
341
    }
342
    vga_hw_invalidate();
343
    vga_hw_update();
344
}
345

    
346
static void sdl_refresh(DisplayState *ds)
347
{
348
    SDL_Event ev1, *ev = &ev1;
349
    int mod_state;
350

    
351
    if (last_vm_running != vm_running) {
352
        last_vm_running = vm_running;
353
        sdl_update_caption();
354
    }
355

    
356
    vga_hw_update();
357

    
358
    while (SDL_PollEvent(ev)) {
359
        switch (ev->type) {
360
        case SDL_VIDEOEXPOSE:
361
            sdl_update(ds, 0, 0, screen->w, screen->h);
362
            break;
363
        case SDL_KEYDOWN:
364
        case SDL_KEYUP:
365
            if (ev->type == SDL_KEYDOWN) {
366
                if (!alt_grab) {
367
                    mod_state = (SDL_GetModState() & gui_grab_code) ==
368
                                gui_grab_code;
369
                } else {
370
                    mod_state = (SDL_GetModState() & (gui_grab_code | KMOD_LSHIFT)) ==
371
                                (gui_grab_code | KMOD_LSHIFT);
372
                }
373
                gui_key_modifier_pressed = mod_state;
374
                if (gui_key_modifier_pressed) {
375
                    int keycode;
376
                    keycode = sdl_keyevent_to_keycode(&ev->key);
377
                    switch(keycode) {
378
                    case 0x21: /* 'f' key on US keyboard */
379
                        toggle_full_screen(ds);
380
                        gui_keysym = 1;
381
                        break;
382
                    case 0x02 ... 0x0a: /* '1' to '9' keys */
383
                        /* Reset the modifiers sent to the current console */
384
                        reset_keys();
385
                        console_select(keycode - 0x02);
386
                        if (!is_graphic_console()) {
387
                            /* display grab if going to a text console */
388
                            if (gui_grab)
389
                                sdl_grab_end();
390
                        }
391
                        gui_keysym = 1;
392
                        break;
393
                    default:
394
                        break;
395
                    }
396
                } else if (!is_graphic_console()) {
397
                    int keysym;
398
                    keysym = 0;
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;
409
                        default: break;
410
                        }
411
                    } else {
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;
423
                        default: break;
424
                        }
425
                    }
426
                    if (keysym) {
427
                        kbd_put_keysym(keysym);
428
                    } else if (ev->key.keysym.unicode != 0) {
429
                        kbd_put_keysym(ev->key.keysym.unicode);
430
                    }
431
                }
432
            } else if (ev->type == SDL_KEYUP) {
433
                if (!alt_grab) {
434
                    mod_state = (ev->key.keysym.mod & gui_grab_code);
435
                } else {
436
                    mod_state = (ev->key.keysym.mod &
437
                                 (gui_grab_code | KMOD_LSHIFT));
438
                }
439
                if (!mod_state) {
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 */
444
                            if (!gui_grab) {
445
                                /* if the application is not active,
446
                                   do not try to enter grab state. It
447
                                   prevents
448
                                   'SDL_WM_GrabInput(SDL_GRAB_ON)'
449
                                   from blocking all the application
450
                                   (SDL bug). */
451
                                if (SDL_GetAppState() & SDL_APPACTIVE)
452
                                    sdl_grab_start();
453
                            } else {
454
                                sdl_grab_end();
455
                            }
456
                            /* SDL does not send back all the
457
                               modifiers key, so we must correct it */
458
                            reset_keys();
459
                            break;
460
                        }
461
                        gui_keysym = 0;
462
                    }
463
                }
464
            }
465
            if (is_graphic_console() && !gui_keysym)
466
                sdl_process_key(&ev->key);
467
            break;
468
        case SDL_QUIT:
469
            if (!no_quit) {
470
                qemu_system_shutdown_request();
471
                vm_start();        /* In case we're paused */
472
            }
473
            break;
474
        case SDL_MOUSEMOTION:
475
            if (gui_grab || kbd_mouse_is_absolute() ||
476
                absolute_enabled) {
477
                sdl_send_mouse_event(0);
478
            }
479
            break;
480
        case SDL_MOUSEBUTTONDOWN:
481
        case SDL_MOUSEBUTTONUP:
482
            {
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 */
488
                        sdl_grab_start();
489
                    }
490
                } else {
491
                    int dz;
492
                    dz = 0;
493
#ifdef SDL_BUTTON_WHEELUP
494
                    if (bev->button == SDL_BUTTON_WHEELUP && ev->type == SDL_MOUSEBUTTONDOWN) {
495
                        dz = -1;
496
                    } else if (bev->button == SDL_BUTTON_WHEELDOWN && ev->type == SDL_MOUSEBUTTONDOWN) {
497
                        dz = 1;
498
                    }
499
#endif
500
                    sdl_send_mouse_event(dz);
501
                }
502
            }
503
            break;
504
        case SDL_ACTIVEEVENT:
505
            if (gui_grab && ev->active.state == SDL_APPINPUTFOCUS &&
506
                !ev->active.gain && !gui_fullscreen_initial_grab) {
507
                sdl_grab_end();
508
            }
509
            break;
510
        default:
511
            break;
512
        }
513
    }
514
}
515

    
516
static void sdl_fill(DisplayState *ds, int x, int y, int w, int h, uint32_t c)
517
{
518
    SDL_Rect dst = { x, y, w, h };
519
    SDL_FillRect(screen, &dst, c);
520
}
521

    
522
static void sdl_mouse_warp(int x, int y, int on)
523
{
524
    if (on) {
525
        if (!guest_cursor)
526
            sdl_show_cursor();
527
        if (gui_grab || kbd_mouse_is_absolute() || absolute_enabled) {
528
            SDL_SetCursor(guest_sprite);
529
            SDL_WarpMouse(x, y);
530
        }
531
    } else if (gui_grab)
532
        sdl_hide_cursor();
533
    guest_cursor = on;
534
    guest_x = x, guest_y = y;
535
}
536

    
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)
540
{
541
    uint8_t sprite[256], *line;
542
    int x, y, dst, bypl, src = 0;
543
    if (guest_sprite)
544
        SDL_FreeCursor(guest_sprite);
545

    
546
    memset(sprite, 0, 256);
547
    bypl = ((width * bpp + 31) >> 5) << 2;
548
    for (y = 0, dst = 0; y < height; y ++, image += bypl) {
549
        line = image;
550
        for (x = 0; x < width; x ++, dst ++) {
551
            switch (bpp) {
552
            case 24:
553
                src = *(line ++); src |= *(line ++); src |= *(line ++);
554
                break;
555
            case 16:
556
            case 15:
557
                src = *(line ++); src |= *(line ++);
558
                break;
559
            case 8:
560
                src = *(line ++);
561
                break;
562
            case 4:
563
                src = 0xf & (line[x >> 1] >> ((x & 1)) << 2);
564
                break;
565
            case 2:
566
                src = 3 & (line[x >> 2] >> ((x & 3)) << 1);
567
                break;
568
            case 1:
569
                src = 1 & (line[x >> 3] >> (x & 7));
570
                break;
571
            }
572
            if (!src)
573
                sprite[dst >> 3] |= (1 << (~dst & 7)) & mask[dst >> 3];
574
        }
575
    }
576
    guest_sprite = SDL_CreateCursor(sprite, mask, width, height, hot_x, hot_y);
577

    
578
    if (guest_cursor &&
579
            (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
580
        SDL_SetCursor(guest_sprite);
581
}
582

    
583
static void sdl_cleanup(void)
584
{
585
    if (guest_sprite)
586
        SDL_FreeCursor(guest_sprite);
587
    SDL_Quit();
588
}
589

    
590
void sdl_display_init(DisplayState *ds, int full_screen, int no_frame)
591
{
592
    int flags;
593
    uint8_t data = 0;
594

    
595
#if defined(__APPLE__)
596
    /* always use generic keymaps */
597
    if (!keyboard_layout)
598
        keyboard_layout = "en-us";
599
#endif
600
    if(keyboard_layout) {
601
        kbd_layout = init_keyboard_layout(keyboard_layout);
602
        if (!kbd_layout)
603
            exit(1);
604
    }
605

    
606
    if (no_frame)
607
        gui_noframe = 1;
608

    
609
    flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
610
    if (SDL_Init (flags)) {
611
        fprintf(stderr, "Could not initialize SDL - exiting\n");
612
        exit(1);
613
    }
614
#ifndef _WIN32
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);
618
#endif
619

    
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;
626

    
627
    sdl_resize(ds, 640, 400);
628
    sdl_update_caption();
629
    SDL_EnableKeyRepeat(250, 50);
630
    SDL_EnableUNICODE(1);
631
    gui_grab = 0;
632

    
633
    sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0);
634
    sdl_cursor_normal = SDL_GetCursor();
635

    
636
    atexit(sdl_cleanup);
637
    if (full_screen) {
638
        gui_fullscreen = 1;
639
        gui_fullscreen_initial_grab = 1;
640
        sdl_grab_start();
641
    }
642
}