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/*
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 * QEMU SDL display driver
3
 *
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 * 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
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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
11
 * 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
20
 * 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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 */
24

    
25
/* Avoid compiler warning because macro is redefined in SDL_syswm.h. */
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#undef WIN32_LEAN_AND_MEAN
27

    
28
#include <SDL.h>
29
#include <SDL_syswm.h>
30

    
31
#include "qemu-common.h"
32
#include "ui/console.h"
33
#include "sysemu/sysemu.h"
34
#include "x_keymap.h"
35
#include "sdl_zoom.h"
36

    
37
static DisplayChangeListener *dcl;
38
static DisplaySurface *surface;
39
static SDL_Surface *real_screen;
40
static SDL_Surface *guest_screen = NULL;
41
static int gui_grab; /* if true, all keyboard/mouse events are grabbed */
42
static int last_vm_running;
43
static bool gui_saved_scaling;
44
static int gui_saved_width;
45
static int gui_saved_height;
46
static int gui_saved_grab;
47
static int gui_fullscreen;
48
static int gui_noframe;
49
static int gui_key_modifier_pressed;
50
static int gui_keysym;
51
static int gui_grab_code = KMOD_LALT | KMOD_LCTRL;
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static uint8_t modifiers_state[256];
53
static SDL_Cursor *sdl_cursor_normal;
54
static SDL_Cursor *sdl_cursor_hidden;
55
static int absolute_enabled = 0;
56
static int guest_cursor = 0;
57
static int guest_x, guest_y;
58
static SDL_Cursor *guest_sprite = NULL;
59
static SDL_PixelFormat host_format;
60
static int scaling_active = 0;
61
static Notifier mouse_mode_notifier;
62

    
63
static void sdl_update(DisplayChangeListener *dcl,
64
                       int x, int y, int w, int h)
65
{
66
    //    printf("updating x=%d y=%d w=%d h=%d\n", x, y, w, h);
67
    SDL_Rect rec;
68
    rec.x = x;
69
    rec.y = y;
70
    rec.w = w;
71
    rec.h = h;
72

    
73
    if (guest_screen) {
74
        if (!scaling_active) {
75
            SDL_BlitSurface(guest_screen, &rec, real_screen, &rec);
76
        } else {
77
            if (sdl_zoom_blit(guest_screen, real_screen, SMOOTHING_ON, &rec) < 0) {
78
                fprintf(stderr, "Zoom blit failed\n");
79
                exit(1);
80
            }
81
        }
82
    } 
83
    SDL_UpdateRect(real_screen, rec.x, rec.y, rec.w, rec.h);
84
}
85

    
86
static void do_sdl_resize(int width, int height, int bpp)
87
{
88
    int flags;
89

    
90
    //    printf("resizing to %d %d\n", w, h);
91

    
92
    flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
93
    if (gui_fullscreen) {
94
        flags |= SDL_FULLSCREEN;
95
    } else {
96
        flags |= SDL_RESIZABLE;
97
    }
98
    if (gui_noframe)
99
        flags |= SDL_NOFRAME;
100

    
101
    real_screen = SDL_SetVideoMode(width, height, bpp, flags);
102
    if (!real_screen) {
103
        fprintf(stderr, "Could not open SDL display (%dx%dx%d): %s\n", width, 
104
                height, bpp, SDL_GetError());
105
        exit(1);
106
    }
107
}
108

    
109
static void sdl_switch(DisplayChangeListener *dcl,
110
                       DisplaySurface *new_surface)
111
{
112

    
113
    /* temporary hack: allows to call sdl_switch to handle scaling changes */
114
    if (new_surface) {
115
        surface = new_surface;
116
    }
117

    
118
    if (!scaling_active) {
119
        do_sdl_resize(surface_width(surface), surface_height(surface), 0);
120
    } else if (real_screen->format->BitsPerPixel !=
121
               surface_bits_per_pixel(surface)) {
122
        do_sdl_resize(real_screen->w, real_screen->h,
123
                      surface_bits_per_pixel(surface));
124
    }
125

    
126
    if (guest_screen != NULL) {
127
        SDL_FreeSurface(guest_screen);
128
    }
129
    guest_screen = SDL_CreateRGBSurfaceFrom
130
        (surface_data(surface),
131
         surface_width(surface), surface_height(surface),
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         surface_bits_per_pixel(surface), surface_stride(surface),
133
         surface->pf.rmask, surface->pf.gmask,
134
         surface->pf.bmask, surface->pf.amask);
135
}
136

    
137
/* generic keyboard conversion */
138

    
139
#include "sdl_keysym.h"
140

    
141
static kbd_layout_t *kbd_layout = NULL;
142

    
143
static uint8_t sdl_keyevent_to_keycode_generic(const SDL_KeyboardEvent *ev)
144
{
145
    int keysym;
146
    /* workaround for X11+SDL bug with AltGR */
147
    keysym = ev->keysym.sym;
148
    if (keysym == 0 && ev->keysym.scancode == 113)
149
        keysym = SDLK_MODE;
150
    /* For Japanese key '\' and '|' */
151
    if (keysym == 92 && ev->keysym.scancode == 133) {
152
        keysym = 0xa5;
153
    }
154
    return keysym2scancode(kbd_layout, keysym) & SCANCODE_KEYMASK;
155
}
156

    
157
/* specific keyboard conversions from scan codes */
158

    
159
#if defined(_WIN32)
160

    
161
static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
162
{
163
    return ev->keysym.scancode;
164
}
165

    
166
#else
167

    
168
#if defined(SDL_VIDEO_DRIVER_X11)
169
#include <X11/XKBlib.h>
170

    
171
static int check_for_evdev(void)
172
{
173
    SDL_SysWMinfo info;
174
    XkbDescPtr desc = NULL;
175
    int has_evdev = 0;
176
    char *keycodes = NULL;
177

    
178
    SDL_VERSION(&info.version);
179
    if (!SDL_GetWMInfo(&info)) {
180
        return 0;
181
    }
182
    desc = XkbGetKeyboard(info.info.x11.display,
183
                          XkbGBN_AllComponentsMask,
184
                          XkbUseCoreKbd);
185
    if (desc && desc->names) {
186
        keycodes = XGetAtomName(info.info.x11.display, desc->names->keycodes);
187
        if (keycodes == NULL) {
188
            fprintf(stderr, "could not lookup keycode name\n");
189
        } else if (strstart(keycodes, "evdev", NULL)) {
190
            has_evdev = 1;
191
        } else if (!strstart(keycodes, "xfree86", NULL)) {
192
            fprintf(stderr, "unknown keycodes `%s', please report to "
193
                    "qemu-devel@nongnu.org\n", keycodes);
194
        }
195
    }
196

    
197
    if (desc) {
198
        XkbFreeKeyboard(desc, XkbGBN_AllComponentsMask, True);
199
    }
200
    if (keycodes) {
201
        XFree(keycodes);
202
    }
203
    return has_evdev;
204
}
205
#else
206
static int check_for_evdev(void)
207
{
208
        return 0;
209
}
210
#endif
211

    
212
static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
213
{
214
    int keycode;
215
    static int has_evdev = -1;
216

    
217
    if (has_evdev == -1)
218
        has_evdev = check_for_evdev();
219

    
220
    keycode = ev->keysym.scancode;
221

    
222
    if (keycode < 9) {
223
        keycode = 0;
224
    } else if (keycode < 97) {
225
        keycode -= 8; /* just an offset */
226
    } else if (keycode < 158) {
227
        /* use conversion table */
228
        if (has_evdev)
229
            keycode = translate_evdev_keycode(keycode - 97);
230
        else
231
            keycode = translate_xfree86_keycode(keycode - 97);
232
    } else if (keycode == 208) { /* Hiragana_Katakana */
233
        keycode = 0x70;
234
    } else if (keycode == 211) { /* backslash */
235
        keycode = 0x73;
236
    } else {
237
        keycode = 0;
238
    }
239
    return keycode;
240
}
241

    
242
#endif
243

    
244
static void reset_keys(void)
245
{
246
    int i;
247
    for(i = 0; i < 256; i++) {
248
        if (modifiers_state[i]) {
249
            if (i & SCANCODE_GREY)
250
                kbd_put_keycode(SCANCODE_EMUL0);
251
            kbd_put_keycode(i | SCANCODE_UP);
252
            modifiers_state[i] = 0;
253
        }
254
    }
255
}
256

    
257
static void sdl_process_key(SDL_KeyboardEvent *ev)
258
{
259
    int keycode, v;
260

    
261
    if (ev->keysym.sym == SDLK_PAUSE) {
262
        /* specific case */
263
        v = 0;
264
        if (ev->type == SDL_KEYUP)
265
            v |= SCANCODE_UP;
266
        kbd_put_keycode(0xe1);
267
        kbd_put_keycode(0x1d | v);
268
        kbd_put_keycode(0x45 | v);
269
        return;
270
    }
271

    
272
    if (kbd_layout) {
273
        keycode = sdl_keyevent_to_keycode_generic(ev);
274
    } else {
275
        keycode = sdl_keyevent_to_keycode(ev);
276
    }
277

    
278
    switch(keycode) {
279
    case 0x00:
280
        /* sent when leaving window: reset the modifiers state */
281
        reset_keys();
282
        return;
283
    case 0x2a:                          /* Left Shift */
284
    case 0x36:                          /* Right Shift */
285
    case 0x1d:                          /* Left CTRL */
286
    case 0x9d:                          /* Right CTRL */
287
    case 0x38:                          /* Left ALT */
288
    case 0xb8:                         /* Right ALT */
289
        if (ev->type == SDL_KEYUP)
290
            modifiers_state[keycode] = 0;
291
        else
292
            modifiers_state[keycode] = 1;
293
        break;
294
#define QEMU_SDL_VERSION ((SDL_MAJOR_VERSION << 8) + SDL_MINOR_VERSION)
295
#if QEMU_SDL_VERSION < 0x102 || QEMU_SDL_VERSION == 0x102 && SDL_PATCHLEVEL < 14
296
        /* SDL versions before 1.2.14 don't support key up for caps/num lock. */
297
    case 0x45: /* num lock */
298
    case 0x3a: /* caps lock */
299
        /* SDL does not send the key up event, so we generate it */
300
        kbd_put_keycode(keycode);
301
        kbd_put_keycode(keycode | SCANCODE_UP);
302
        return;
303
#endif
304
    }
305

    
306
    /* now send the key code */
307
    if (keycode & SCANCODE_GREY)
308
        kbd_put_keycode(SCANCODE_EMUL0);
309
    if (ev->type == SDL_KEYUP)
310
        kbd_put_keycode(keycode | SCANCODE_UP);
311
    else
312
        kbd_put_keycode(keycode & SCANCODE_KEYCODEMASK);
313
}
314

    
315
static void sdl_update_caption(void)
316
{
317
    char win_title[1024];
318
    char icon_title[1024];
319
    const char *status = "";
320

    
321
    if (!runstate_is_running())
322
        status = " [Stopped]";
323
    else if (gui_grab) {
324
        if (alt_grab)
325
            status = " - Press Ctrl-Alt-Shift to exit mouse grab";
326
        else if (ctrl_grab)
327
            status = " - Press Right-Ctrl to exit mouse grab";
328
        else
329
            status = " - Press Ctrl-Alt to exit mouse grab";
330
    }
331

    
332
    if (qemu_name) {
333
        snprintf(win_title, sizeof(win_title), "QEMU (%s)%s", qemu_name, status);
334
        snprintf(icon_title, sizeof(icon_title), "QEMU (%s)", qemu_name);
335
    } else {
336
        snprintf(win_title, sizeof(win_title), "QEMU%s", status);
337
        snprintf(icon_title, sizeof(icon_title), "QEMU");
338
    }
339

    
340
    SDL_WM_SetCaption(win_title, icon_title);
341
}
342

    
343
static void sdl_hide_cursor(void)
344
{
345
    if (!cursor_hide)
346
        return;
347

    
348
    if (kbd_mouse_is_absolute()) {
349
        SDL_ShowCursor(1);
350
        SDL_SetCursor(sdl_cursor_hidden);
351
    } else {
352
        SDL_ShowCursor(0);
353
    }
354
}
355

    
356
static void sdl_show_cursor(void)
357
{
358
    if (!cursor_hide)
359
        return;
360

    
361
    if (!kbd_mouse_is_absolute() || !qemu_console_is_graphic(NULL)) {
362
        SDL_ShowCursor(1);
363
        if (guest_cursor &&
364
                (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
365
            SDL_SetCursor(guest_sprite);
366
        else
367
            SDL_SetCursor(sdl_cursor_normal);
368
    }
369
}
370

    
371
static void sdl_grab_start(void)
372
{
373
    /*
374
     * If the application is not active, do not try to enter grab state. This
375
     * prevents 'SDL_WM_GrabInput(SDL_GRAB_ON)' from blocking all the
376
     * application (SDL bug).
377
     */
378
    if (!(SDL_GetAppState() & SDL_APPINPUTFOCUS)) {
379
        return;
380
    }
381
    if (guest_cursor) {
382
        SDL_SetCursor(guest_sprite);
383
        if (!kbd_mouse_is_absolute() && !absolute_enabled)
384
            SDL_WarpMouse(guest_x, guest_y);
385
    } else
386
        sdl_hide_cursor();
387
    SDL_WM_GrabInput(SDL_GRAB_ON);
388
    gui_grab = 1;
389
    sdl_update_caption();
390
}
391

    
392
static void sdl_grab_end(void)
393
{
394
    SDL_WM_GrabInput(SDL_GRAB_OFF);
395
    gui_grab = 0;
396
    sdl_show_cursor();
397
    sdl_update_caption();
398
}
399

    
400
static void absolute_mouse_grab(void)
401
{
402
    int mouse_x, mouse_y;
403

    
404
    SDL_GetMouseState(&mouse_x, &mouse_y);
405
    if (mouse_x > 0 && mouse_x < real_screen->w - 1 &&
406
        mouse_y > 0 && mouse_y < real_screen->h - 1) {
407
        sdl_grab_start();
408
    }
409
}
410

    
411
static void sdl_mouse_mode_change(Notifier *notify, void *data)
412
{
413
    if (kbd_mouse_is_absolute()) {
414
        if (!absolute_enabled) {
415
            absolute_enabled = 1;
416
            if (qemu_console_is_graphic(NULL)) {
417
                absolute_mouse_grab();
418
            }
419
        }
420
    } else if (absolute_enabled) {
421
        if (!gui_fullscreen) {
422
            sdl_grab_end();
423
        }
424
        absolute_enabled = 0;
425
    }
426
}
427

    
428
static void sdl_send_mouse_event(int dx, int dy, int dz, int x, int y, int state)
429
{
430
    int buttons = 0;
431

    
432
    if (state & SDL_BUTTON(SDL_BUTTON_LEFT)) {
433
        buttons |= MOUSE_EVENT_LBUTTON;
434
    }
435
    if (state & SDL_BUTTON(SDL_BUTTON_RIGHT)) {
436
        buttons |= MOUSE_EVENT_RBUTTON;
437
    }
438
    if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE)) {
439
        buttons |= MOUSE_EVENT_MBUTTON;
440
    }
441

    
442
    if (kbd_mouse_is_absolute()) {
443
        dx = x * 0x7FFF / (real_screen->w - 1);
444
        dy = y * 0x7FFF / (real_screen->h - 1);
445
    } else if (guest_cursor) {
446
        x -= guest_x;
447
        y -= guest_y;
448
        guest_x += x;
449
        guest_y += y;
450
        dx = x;
451
        dy = y;
452
    }
453

    
454
    kbd_mouse_event(dx, dy, dz, buttons);
455
}
456

    
457
static void sdl_scale(int width, int height)
458
{
459
    int bpp = real_screen->format->BitsPerPixel;
460

    
461
    if (bpp != 16 && bpp != 32) {
462
        bpp = 32;
463
    }
464
    do_sdl_resize(width, height, bpp);
465
    scaling_active = 1;
466
}
467

    
468
static void toggle_full_screen(void)
469
{
470
    int width = surface_width(surface);
471
    int height = surface_height(surface);
472
    int bpp = surface_bits_per_pixel(surface);
473

    
474
    gui_fullscreen = !gui_fullscreen;
475
    if (gui_fullscreen) {
476
        gui_saved_width = real_screen->w;
477
        gui_saved_height = real_screen->h;
478
        gui_saved_scaling = scaling_active;
479

    
480
        do_sdl_resize(width, height, bpp);
481
        scaling_active = 0;
482

    
483
        gui_saved_grab = gui_grab;
484
        sdl_grab_start();
485
    } else {
486
        if (gui_saved_scaling) {
487
            sdl_scale(gui_saved_width, gui_saved_height);
488
        } else {
489
            do_sdl_resize(width, height, 0);
490
        }
491
        if (!gui_saved_grab || !qemu_console_is_graphic(NULL)) {
492
            sdl_grab_end();
493
        }
494
    }
495
    graphic_hw_invalidate(NULL);
496
    graphic_hw_update(NULL);
497
}
498

    
499
static void handle_keydown(SDL_Event *ev)
500
{
501
    int mod_state;
502
    int keycode;
503

    
504
    if (alt_grab) {
505
        mod_state = (SDL_GetModState() & (gui_grab_code | KMOD_LSHIFT)) ==
506
                    (gui_grab_code | KMOD_LSHIFT);
507
    } else if (ctrl_grab) {
508
        mod_state = (SDL_GetModState() & KMOD_RCTRL) == KMOD_RCTRL;
509
    } else {
510
        mod_state = (SDL_GetModState() & gui_grab_code) == gui_grab_code;
511
    }
512
    gui_key_modifier_pressed = mod_state;
513

    
514
    if (gui_key_modifier_pressed) {
515
        keycode = sdl_keyevent_to_keycode(&ev->key);
516
        switch (keycode) {
517
        case 0x21: /* 'f' key on US keyboard */
518
            toggle_full_screen();
519
            gui_keysym = 1;
520
            break;
521
        case 0x16: /* 'u' key on US keyboard */
522
            if (scaling_active) {
523
                scaling_active = 0;
524
                sdl_switch(dcl, NULL);
525
                graphic_hw_invalidate(NULL);
526
                graphic_hw_update(NULL);
527
            }
528
            gui_keysym = 1;
529
            break;
530
        case 0x02 ... 0x0a: /* '1' to '9' keys */
531
            /* Reset the modifiers sent to the current console */
532
            reset_keys();
533
            console_select(keycode - 0x02);
534
            gui_keysym = 1;
535
            if (gui_fullscreen) {
536
                break;
537
            }
538
            if (!qemu_console_is_graphic(NULL)) {
539
                /* release grab if going to a text console */
540
                if (gui_grab) {
541
                    sdl_grab_end();
542
                } else if (absolute_enabled) {
543
                    sdl_show_cursor();
544
                }
545
            } else if (absolute_enabled) {
546
                sdl_hide_cursor();
547
                absolute_mouse_grab();
548
            }
549
            break;
550
        case 0x1b: /* '+' */
551
        case 0x35: /* '-' */
552
            if (!gui_fullscreen) {
553
                int width = MAX(real_screen->w + (keycode == 0x1b ? 50 : -50),
554
                                160);
555
                int height = (surface_height(surface) * width) /
556
                    surface_width(surface);
557

    
558
                sdl_scale(width, height);
559
                graphic_hw_invalidate(NULL);
560
                graphic_hw_update(NULL);
561
                gui_keysym = 1;
562
            }
563
        default:
564
            break;
565
        }
566
    } else if (!qemu_console_is_graphic(NULL)) {
567
        int keysym = 0;
568

    
569
        if (ev->key.keysym.mod & (KMOD_LCTRL | KMOD_RCTRL)) {
570
            switch (ev->key.keysym.sym) {
571
            case SDLK_UP:
572
                keysym = QEMU_KEY_CTRL_UP;
573
                break;
574
            case SDLK_DOWN:
575
                keysym = QEMU_KEY_CTRL_DOWN;
576
                break;
577
            case SDLK_LEFT:
578
                keysym = QEMU_KEY_CTRL_LEFT;
579
                break;
580
            case SDLK_RIGHT:
581
                keysym = QEMU_KEY_CTRL_RIGHT;
582
                break;
583
            case SDLK_HOME:
584
                keysym = QEMU_KEY_CTRL_HOME;
585
                break;
586
            case SDLK_END:
587
                keysym = QEMU_KEY_CTRL_END;
588
                break;
589
            case SDLK_PAGEUP:
590
                keysym = QEMU_KEY_CTRL_PAGEUP;
591
                break;
592
            case SDLK_PAGEDOWN:
593
                keysym = QEMU_KEY_CTRL_PAGEDOWN;
594
                break;
595
            default:
596
                break;
597
            }
598
        } else {
599
            switch (ev->key.keysym.sym) {
600
            case SDLK_UP:
601
                keysym = QEMU_KEY_UP;
602
                break;
603
            case SDLK_DOWN:
604
                keysym = QEMU_KEY_DOWN;
605
                break;
606
            case SDLK_LEFT:
607
                keysym = QEMU_KEY_LEFT;
608
                break;
609
            case SDLK_RIGHT:
610
                keysym = QEMU_KEY_RIGHT;
611
                break;
612
            case SDLK_HOME:
613
                keysym = QEMU_KEY_HOME;
614
                break;
615
            case SDLK_END:
616
                keysym = QEMU_KEY_END;
617
                break;
618
            case SDLK_PAGEUP:
619
                keysym = QEMU_KEY_PAGEUP;
620
                break;
621
            case SDLK_PAGEDOWN:
622
                keysym = QEMU_KEY_PAGEDOWN;
623
                break;
624
            case SDLK_BACKSPACE:
625
                keysym = QEMU_KEY_BACKSPACE;
626
                break;
627
            case SDLK_DELETE:
628
                keysym = QEMU_KEY_DELETE;
629
                break;
630
            default:
631
                break;
632
            }
633
        }
634
        if (keysym) {
635
            kbd_put_keysym(keysym);
636
        } else if (ev->key.keysym.unicode != 0) {
637
            kbd_put_keysym(ev->key.keysym.unicode);
638
        }
639
    }
640
    if (qemu_console_is_graphic(NULL) && !gui_keysym) {
641
        sdl_process_key(&ev->key);
642
    }
643
}
644

    
645
static void handle_keyup(SDL_Event *ev)
646
{
647
    int mod_state;
648

    
649
    if (!alt_grab) {
650
        mod_state = (ev->key.keysym.mod & gui_grab_code);
651
    } else {
652
        mod_state = (ev->key.keysym.mod & (gui_grab_code | KMOD_LSHIFT));
653
    }
654
    if (!mod_state && gui_key_modifier_pressed) {
655
        gui_key_modifier_pressed = 0;
656
        if (gui_keysym == 0) {
657
            /* exit/enter grab if pressing Ctrl-Alt */
658
            if (!gui_grab) {
659
                if (qemu_console_is_graphic(NULL)) {
660
                    sdl_grab_start();
661
                }
662
            } else if (!gui_fullscreen) {
663
                sdl_grab_end();
664
            }
665
            /* SDL does not send back all the modifiers key, so we must
666
             * correct it. */
667
            reset_keys();
668
            return;
669
        }
670
        gui_keysym = 0;
671
    }
672
    if (qemu_console_is_graphic(NULL) && !gui_keysym) {
673
        sdl_process_key(&ev->key);
674
    }
675
}
676

    
677
static void handle_mousemotion(SDL_Event *ev)
678
{
679
    int max_x, max_y;
680

    
681
    if (qemu_console_is_graphic(NULL) &&
682
        (kbd_mouse_is_absolute() || absolute_enabled)) {
683
        max_x = real_screen->w - 1;
684
        max_y = real_screen->h - 1;
685
        if (gui_grab && (ev->motion.x == 0 || ev->motion.y == 0 ||
686
            ev->motion.x == max_x || ev->motion.y == max_y)) {
687
            sdl_grab_end();
688
        }
689
        if (!gui_grab &&
690
            (ev->motion.x > 0 && ev->motion.x < max_x &&
691
            ev->motion.y > 0 && ev->motion.y < max_y)) {
692
            sdl_grab_start();
693
        }
694
    }
695
    if (gui_grab || kbd_mouse_is_absolute() || absolute_enabled) {
696
        sdl_send_mouse_event(ev->motion.xrel, ev->motion.yrel, 0,
697
                             ev->motion.x, ev->motion.y, ev->motion.state);
698
    }
699
}
700

    
701
static void handle_mousebutton(SDL_Event *ev)
702
{
703
    int buttonstate = SDL_GetMouseState(NULL, NULL);
704
    SDL_MouseButtonEvent *bev;
705
    int dz;
706

    
707
    if (!qemu_console_is_graphic(NULL)) {
708
        return;
709
    }
710

    
711
    bev = &ev->button;
712
    if (!gui_grab && !kbd_mouse_is_absolute()) {
713
        if (ev->type == SDL_MOUSEBUTTONUP && bev->button == SDL_BUTTON_LEFT) {
714
            /* start grabbing all events */
715
            sdl_grab_start();
716
        }
717
    } else {
718
        dz = 0;
719
        if (ev->type == SDL_MOUSEBUTTONDOWN) {
720
            buttonstate |= SDL_BUTTON(bev->button);
721
        } else {
722
            buttonstate &= ~SDL_BUTTON(bev->button);
723
        }
724
#ifdef SDL_BUTTON_WHEELUP
725
        if (bev->button == SDL_BUTTON_WHEELUP &&
726
            ev->type == SDL_MOUSEBUTTONDOWN) {
727
            dz = -1;
728
        } else if (bev->button == SDL_BUTTON_WHEELDOWN &&
729
                   ev->type == SDL_MOUSEBUTTONDOWN) {
730
            dz = 1;
731
        }
732
#endif
733
        sdl_send_mouse_event(0, 0, dz, bev->x, bev->y, buttonstate);
734
    }
735
}
736

    
737
static void handle_activation(SDL_Event *ev)
738
{
739
#ifdef _WIN32
740
    /* Disable grab if the window no longer has the focus
741
     * (Windows-only workaround) */
742
    if (gui_grab && ev->active.state == SDL_APPINPUTFOCUS &&
743
        !ev->active.gain && !gui_fullscreen) {
744
        sdl_grab_end();
745
    }
746
#endif
747
    if (!gui_grab && ev->active.gain && qemu_console_is_graphic(NULL) &&
748
        (kbd_mouse_is_absolute() || absolute_enabled)) {
749
        absolute_mouse_grab();
750
    }
751
    if (ev->active.state & SDL_APPACTIVE) {
752
        if (ev->active.gain) {
753
            /* Back to default interval */
754
            update_displaychangelistener(dcl, GUI_REFRESH_INTERVAL_DEFAULT);
755
        } else {
756
            /* Sleeping interval.  Not using the long default here as
757
             * sdl_refresh does not only update the guest screen, but
758
             * also checks for gui events. */
759
            update_displaychangelistener(dcl, 500);
760
        }
761
    }
762
}
763

    
764
static void sdl_refresh(DisplayChangeListener *dcl)
765
{
766
    SDL_Event ev1, *ev = &ev1;
767

    
768
    if (last_vm_running != runstate_is_running()) {
769
        last_vm_running = runstate_is_running();
770
        sdl_update_caption();
771
    }
772

    
773
    graphic_hw_update(NULL);
774
    SDL_EnableUNICODE(!qemu_console_is_graphic(NULL));
775

    
776
    while (SDL_PollEvent(ev)) {
777
        switch (ev->type) {
778
        case SDL_VIDEOEXPOSE:
779
            sdl_update(dcl, 0, 0, real_screen->w, real_screen->h);
780
            break;
781
        case SDL_KEYDOWN:
782
            handle_keydown(ev);
783
            break;
784
        case SDL_KEYUP:
785
            handle_keyup(ev);
786
            break;
787
        case SDL_QUIT:
788
            if (!no_quit) {
789
                no_shutdown = 0;
790
                qemu_system_shutdown_request();
791
            }
792
            break;
793
        case SDL_MOUSEMOTION:
794
            handle_mousemotion(ev);
795
            break;
796
        case SDL_MOUSEBUTTONDOWN:
797
        case SDL_MOUSEBUTTONUP:
798
            handle_mousebutton(ev);
799
            break;
800
        case SDL_ACTIVEEVENT:
801
            handle_activation(ev);
802
            break;
803
        case SDL_VIDEORESIZE:
804
            sdl_scale(ev->resize.w, ev->resize.h);
805
            graphic_hw_invalidate(NULL);
806
            graphic_hw_update(NULL);
807
            break;
808
        default:
809
            break;
810
        }
811
    }
812
}
813

    
814
static void sdl_mouse_warp(DisplayChangeListener *dcl,
815
                           int x, int y, int on)
816
{
817
    if (on) {
818
        if (!guest_cursor)
819
            sdl_show_cursor();
820
        if (gui_grab || kbd_mouse_is_absolute() || absolute_enabled) {
821
            SDL_SetCursor(guest_sprite);
822
            if (!kbd_mouse_is_absolute() && !absolute_enabled)
823
                SDL_WarpMouse(x, y);
824
        }
825
    } else if (gui_grab)
826
        sdl_hide_cursor();
827
    guest_cursor = on;
828
    guest_x = x, guest_y = y;
829
}
830

    
831
static void sdl_mouse_define(DisplayChangeListener *dcl,
832
                             QEMUCursor *c)
833
{
834
    uint8_t *image, *mask;
835
    int bpl;
836

    
837
    if (guest_sprite)
838
        SDL_FreeCursor(guest_sprite);
839

    
840
    bpl = cursor_get_mono_bpl(c);
841
    image = g_malloc0(bpl * c->height);
842
    mask  = g_malloc0(bpl * c->height);
843
    cursor_get_mono_image(c, 0x000000, image);
844
    cursor_get_mono_mask(c, 0, mask);
845
    guest_sprite = SDL_CreateCursor(image, mask, c->width, c->height,
846
                                    c->hot_x, c->hot_y);
847
    g_free(image);
848
    g_free(mask);
849

    
850
    if (guest_cursor &&
851
            (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
852
        SDL_SetCursor(guest_sprite);
853
}
854

    
855
static void sdl_cleanup(void)
856
{
857
    if (guest_sprite)
858
        SDL_FreeCursor(guest_sprite);
859
    SDL_QuitSubSystem(SDL_INIT_VIDEO);
860
}
861

    
862
static const DisplayChangeListenerOps dcl_ops = {
863
    .dpy_name          = "sdl",
864
    .dpy_gfx_update    = sdl_update,
865
    .dpy_gfx_switch    = sdl_switch,
866
    .dpy_refresh       = sdl_refresh,
867
    .dpy_mouse_set     = sdl_mouse_warp,
868
    .dpy_cursor_define = sdl_mouse_define,
869
};
870

    
871
void sdl_display_init(DisplayState *ds, int full_screen, int no_frame)
872
{
873
    int flags;
874
    uint8_t data = 0;
875
    const SDL_VideoInfo *vi;
876
    char *filename;
877

    
878
#if defined(__APPLE__)
879
    /* always use generic keymaps */
880
    if (!keyboard_layout)
881
        keyboard_layout = "en-us";
882
#endif
883
    if(keyboard_layout) {
884
        kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout);
885
        if (!kbd_layout)
886
            exit(1);
887
    }
888

    
889
    if (no_frame)
890
        gui_noframe = 1;
891

    
892
    if (!full_screen) {
893
        setenv("SDL_VIDEO_ALLOW_SCREENSAVER", "1", 0);
894
    }
895
#ifdef __linux__
896
    /* on Linux, SDL may use fbcon|directfb|svgalib when run without
897
     * accessible $DISPLAY to open X11 window.  This is often the case
898
     * when qemu is run using sudo.  But in this case, and when actually
899
     * run in X11 environment, SDL fights with X11 for the video card,
900
     * making current display unavailable, often until reboot.
901
     * So make x11 the default SDL video driver if this variable is unset.
902
     * This is a bit hackish but saves us from bigger problem.
903
     * Maybe it's a good idea to fix this in SDL instead.
904
     */
905
    setenv("SDL_VIDEODRIVER", "x11", 0);
906
#endif
907

    
908
    /* Enable normal up/down events for Caps-Lock and Num-Lock keys.
909
     * This requires SDL >= 1.2.14. */
910
    setenv("SDL_DISABLE_LOCK_KEYS", "1", 1);
911

    
912
    flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
913
    if (SDL_Init (flags)) {
914
        fprintf(stderr, "Could not initialize SDL(%s) - exiting\n",
915
                SDL_GetError());
916
        exit(1);
917
    }
918
    vi = SDL_GetVideoInfo();
919
    host_format = *(vi->vfmt);
920

    
921
    /* Load a 32x32x4 image. White pixels are transparent. */
922
    filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, "qemu-icon.bmp");
923
    if (filename) {
924
        SDL_Surface *image = SDL_LoadBMP(filename);
925
        if (image) {
926
            uint32_t colorkey = SDL_MapRGB(image->format, 255, 255, 255);
927
            SDL_SetColorKey(image, SDL_SRCCOLORKEY, colorkey);
928
            SDL_WM_SetIcon(image, NULL);
929
        }
930
        g_free(filename);
931
    }
932

    
933
    if (full_screen) {
934
        gui_fullscreen = 1;
935
        sdl_grab_start();
936
    }
937

    
938
    dcl = g_malloc0(sizeof(DisplayChangeListener));
939
    dcl->ops = &dcl_ops;
940
    register_displaychangelistener(dcl);
941

    
942
    mouse_mode_notifier.notify = sdl_mouse_mode_change;
943
    qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier);
944

    
945
    sdl_update_caption();
946
    SDL_EnableKeyRepeat(250, 50);
947
    gui_grab = 0;
948

    
949
    sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0);
950
    sdl_cursor_normal = SDL_GetCursor();
951

    
952
    atexit(sdl_cleanup);
953
}