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/*
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 * QEMU SDL display driver
3
 *
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 * Copyright (c) 2003 Fabrice Bellard
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a copy
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 * of this software and associated documentation files (the "Software"), to deal
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 * 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
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 * 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
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 * 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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 */
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#include <SDL.h>
25
#include <SDL_syswm.h>
26

    
27
#ifndef _WIN32
28
#include <signal.h>
29
#endif
30

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

    
36
static DisplayChangeListener *dcl;
37
static SDL_Surface *real_screen;
38
static SDL_Surface *guest_screen = NULL;
39
static int gui_grab; /* if true, all keyboard/mouse events are grabbed */
40
static int last_vm_running;
41
static int gui_saved_grab;
42
static int gui_fullscreen;
43
static int gui_noframe;
44
static int gui_key_modifier_pressed;
45
static int gui_keysym;
46
static int gui_fullscreen_initial_grab;
47
static int gui_grab_code = KMOD_LALT | KMOD_LCTRL;
48
static uint8_t modifiers_state[256];
49
static int width, height;
50
static SDL_Cursor *sdl_cursor_normal;
51
static SDL_Cursor *sdl_cursor_hidden;
52
static int absolute_enabled = 0;
53
static int guest_cursor = 0;
54
static int guest_x, guest_y;
55
static SDL_Cursor *guest_sprite = 0;
56
static uint8_t allocator;
57
static uint8_t hostbpp;
58

    
59
static void sdl_update(DisplayState *ds, int x, int y, int w, int h)
60
{
61
    //    printf("updating x=%d y=%d w=%d h=%d\n", x, y, w, h);
62
    if (guest_screen) {
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        SDL_Rect rec;
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        rec.x = x;
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        rec.y = y;
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        rec.w = w;
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        rec.h = h;
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        SDL_BlitSurface(guest_screen, &rec, real_screen, &rec);
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    }
70
    SDL_UpdateRect(real_screen, x, y, w, h);
71
}
72

    
73
static void sdl_setdata(DisplayState *ds)
74
{
75
    SDL_Rect rec;
76
    rec.x = 0;
77
    rec.y = 0;
78
    rec.w = real_screen->w;
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    rec.h = real_screen->h;
80

    
81
    if (guest_screen != NULL) SDL_FreeSurface(guest_screen);
82

    
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    guest_screen = SDL_CreateRGBSurfaceFrom(ds_get_data(ds), ds_get_width(ds), ds_get_height(ds),
84
                                            ds_get_bits_per_pixel(ds), ds_get_linesize(ds),
85
                                            ds->surface->pf.rmask, ds->surface->pf.gmask,
86
                                            ds->surface->pf.bmask, ds->surface->pf.amask);
87
}
88

    
89
static void do_sdl_resize(int width, int height, int bpp)
90
{
91
    int flags;
92

    
93
    //    printf("resizing to %d %d\n", w, h);
94

    
95
    flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
96
    if (gui_fullscreen)
97
        flags |= SDL_FULLSCREEN;
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\n");
104
        exit(1);
105
    }
106
}
107

    
108
static void sdl_resize(DisplayState *ds)
109
{
110
    if  (!allocator) {
111
        do_sdl_resize(ds_get_width(ds), ds_get_height(ds), 0);
112
        sdl_setdata(ds);
113
    } else {
114
        if (guest_screen != NULL) {
115
            SDL_FreeSurface(guest_screen);
116
            guest_screen = NULL;
117
        }
118
    }
119
}
120

    
121
static PixelFormat sdl_to_qemu_pixelformat(SDL_PixelFormat *sdl_pf)
122
{
123
    PixelFormat qemu_pf;
124

    
125
    memset(&qemu_pf, 0x00, sizeof(PixelFormat));
126

    
127
    qemu_pf.bits_per_pixel = sdl_pf->BitsPerPixel;
128
    qemu_pf.bytes_per_pixel = sdl_pf->BytesPerPixel;
129
    qemu_pf.depth = (qemu_pf.bits_per_pixel) == 32 ? 24 : (qemu_pf.bits_per_pixel);
130

    
131
    qemu_pf.rmask = sdl_pf->Rmask;
132
    qemu_pf.gmask = sdl_pf->Gmask;
133
    qemu_pf.bmask = sdl_pf->Bmask;
134
    qemu_pf.amask = sdl_pf->Amask;
135

    
136
    qemu_pf.rshift = sdl_pf->Rshift;
137
    qemu_pf.gshift = sdl_pf->Gshift;
138
    qemu_pf.bshift = sdl_pf->Bshift;
139
    qemu_pf.ashift = sdl_pf->Ashift;
140

    
141
    qemu_pf.rbits = 8 - sdl_pf->Rloss;
142
    qemu_pf.gbits = 8 - sdl_pf->Gloss;
143
    qemu_pf.bbits = 8 - sdl_pf->Bloss;
144
    qemu_pf.abits = 8 - sdl_pf->Aloss;
145

    
146
    qemu_pf.rmax = ((1 << qemu_pf.rbits) - 1);
147
    qemu_pf.gmax = ((1 << qemu_pf.gbits) - 1);
148
    qemu_pf.bmax = ((1 << qemu_pf.bbits) - 1);
149
    qemu_pf.amax = ((1 << qemu_pf.abits) - 1);
150

    
151
    return qemu_pf;
152
}
153

    
154
static DisplaySurface* sdl_create_displaysurface(int width, int height)
155
{
156
    DisplaySurface *surface = (DisplaySurface*) qemu_mallocz(sizeof(DisplaySurface));
157
    if (surface == NULL) {
158
        fprintf(stderr, "sdl_create_displaysurface: malloc failed\n");
159
        exit(1);
160
    }
161

    
162
    surface->width = width;
163
    surface->height = height;
164

    
165
    if (hostbpp == 16)
166
        do_sdl_resize(width, height, 16);
167
    else
168
        do_sdl_resize(width, height, 32);
169

    
170
    surface->pf = sdl_to_qemu_pixelformat(real_screen->format);
171
    surface->linesize = real_screen->pitch;
172
    surface->data = real_screen->pixels;
173

    
174
#ifdef WORDS_BIGENDIAN
175
    surface->flags = QEMU_ALLOCATED_FLAG | QEMU_BIG_ENDIAN_FLAG;
176
#else
177
    surface->flags = QEMU_ALLOCATED_FLAG;
178
#endif
179
    allocator = 1;
180

    
181
    return surface;
182
}
183

    
184
static void sdl_free_displaysurface(DisplaySurface *surface)
185
{
186
    allocator = 0;
187
    if (surface == NULL)
188
        return;
189
    qemu_free(surface);
190
}
191

    
192
static DisplaySurface* sdl_resize_displaysurface(DisplaySurface *surface, int width, int height)
193
{
194
    sdl_free_displaysurface(surface);
195
    return sdl_create_displaysurface(width, height);
196
}
197

    
198
/* generic keyboard conversion */
199

    
200
#include "sdl_keysym.h"
201

    
202
static kbd_layout_t *kbd_layout = NULL;
203

    
204
static uint8_t sdl_keyevent_to_keycode_generic(const SDL_KeyboardEvent *ev)
205
{
206
    int keysym;
207
    /* workaround for X11+SDL bug with AltGR */
208
    keysym = ev->keysym.sym;
209
    if (keysym == 0 && ev->keysym.scancode == 113)
210
        keysym = SDLK_MODE;
211
    /* For Japanese key '\' and '|' */
212
    if (keysym == 92 && ev->keysym.scancode == 133) {
213
        keysym = 0xa5;
214
    }
215
    return keysym2scancode(kbd_layout, keysym);
216
}
217

    
218
/* specific keyboard conversions from scan codes */
219

    
220
#if defined(_WIN32)
221

    
222
static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
223
{
224
    return ev->keysym.scancode;
225
}
226

    
227
#else
228

    
229
#if defined(SDL_VIDEO_DRIVER_X11)
230
#include <X11/XKBlib.h>
231

    
232
static int check_for_evdev(void)
233
{
234
    SDL_SysWMinfo info;
235
    XkbDescPtr desc;
236
    int has_evdev = 0;
237
    const char *keycodes;
238

    
239
    SDL_VERSION(&info.version);
240
    if (!SDL_GetWMInfo(&info))
241
        return 0;
242

    
243
    desc = XkbGetKeyboard(info.info.x11.display,
244
                          XkbGBN_AllComponentsMask,
245
                          XkbUseCoreKbd);
246
    if (desc == NULL || desc->names == NULL)
247
        return 0;
248

    
249
    keycodes = XGetAtomName(info.info.x11.display, desc->names->keycodes);
250
    if (keycodes == NULL)
251
        fprintf(stderr, "could not lookup keycode name\n");
252
    else if (strstart(keycodes, "evdev_", NULL))
253
        has_evdev = 1;
254
    else if (!strstart(keycodes, "xfree86_", NULL))
255
        fprintf(stderr,
256
                "unknown keycodes `%s', please report to qemu-devel@nongnu.org\n",
257
                keycodes);
258

    
259
    XkbFreeClientMap(desc, XkbGBN_AllComponentsMask, True);
260

    
261
    return has_evdev;
262
}
263
#else
264
static int check_for_evdev(void)
265
{
266
        return 0;
267
}
268
#endif
269

    
270
static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
271
{
272
    int keycode;
273
    static int has_evdev = -1;
274

    
275
    if (has_evdev == -1)
276
        has_evdev = check_for_evdev();
277

    
278
    keycode = ev->keysym.scancode;
279

    
280
    if (keycode < 9) {
281
        keycode = 0;
282
    } else if (keycode < 97) {
283
        keycode -= 8; /* just an offset */
284
    } else if (keycode < 158) {
285
        /* use conversion table */
286
        if (has_evdev)
287
            keycode = translate_evdev_keycode(keycode - 97);
288
        else
289
            keycode = translate_xfree86_keycode(keycode - 97);
290
    } else if (keycode == 208) { /* Hiragana_Katakana */
291
        keycode = 0x70;
292
    } else if (keycode == 211) { /* backslash */
293
        keycode = 0x73;
294
    } else {
295
        keycode = 0;
296
    }
297
    return keycode;
298
}
299

    
300
#endif
301

    
302
static void reset_keys(void)
303
{
304
    int i;
305
    for(i = 0; i < 256; i++) {
306
        if (modifiers_state[i]) {
307
            if (i & 0x80)
308
                kbd_put_keycode(0xe0);
309
            kbd_put_keycode(i | 0x80);
310
            modifiers_state[i] = 0;
311
        }
312
    }
313
}
314

    
315
static void sdl_process_key(SDL_KeyboardEvent *ev)
316
{
317
    int keycode, v;
318

    
319
    if (ev->keysym.sym == SDLK_PAUSE) {
320
        /* specific case */
321
        v = 0;
322
        if (ev->type == SDL_KEYUP)
323
            v |= 0x80;
324
        kbd_put_keycode(0xe1);
325
        kbd_put_keycode(0x1d | v);
326
        kbd_put_keycode(0x45 | v);
327
        return;
328
    }
329

    
330
    if (kbd_layout) {
331
        keycode = sdl_keyevent_to_keycode_generic(ev);
332
    } else {
333
        keycode = sdl_keyevent_to_keycode(ev);
334
    }
335

    
336
    switch(keycode) {
337
    case 0x00:
338
        /* sent when leaving window: reset the modifiers state */
339
        reset_keys();
340
        return;
341
    case 0x2a:                          /* Left Shift */
342
    case 0x36:                          /* Right Shift */
343
    case 0x1d:                          /* Left CTRL */
344
    case 0x9d:                          /* Right CTRL */
345
    case 0x38:                          /* Left ALT */
346
    case 0xb8:                         /* Right ALT */
347
        if (ev->type == SDL_KEYUP)
348
            modifiers_state[keycode] = 0;
349
        else
350
            modifiers_state[keycode] = 1;
351
        break;
352
    case 0x45: /* num lock */
353
    case 0x3a: /* caps lock */
354
        /* SDL does not send the key up event, so we generate it */
355
        kbd_put_keycode(keycode);
356
        kbd_put_keycode(keycode | 0x80);
357
        return;
358
    }
359

    
360
    /* now send the key code */
361
    if (keycode & 0x80)
362
        kbd_put_keycode(0xe0);
363
    if (ev->type == SDL_KEYUP)
364
        kbd_put_keycode(keycode | 0x80);
365
    else
366
        kbd_put_keycode(keycode & 0x7f);
367
}
368

    
369
static void sdl_update_caption(void)
370
{
371
    char buf[1024];
372
    const char *status = "";
373

    
374
    if (!vm_running)
375
        status = " [Stopped]";
376
    else if (gui_grab) {
377
        if (!alt_grab)
378
            status = " - Press Ctrl-Alt to exit grab";
379
        else
380
            status = " - Press Ctrl-Alt-Shift to exit grab";
381
    }
382

    
383
    if (qemu_name)
384
        snprintf(buf, sizeof(buf), "QEMU (%s)%s", qemu_name, status);
385
    else
386
        snprintf(buf, sizeof(buf), "QEMU%s", status);
387

    
388
    SDL_WM_SetCaption(buf, "QEMU");
389
}
390

    
391
static void sdl_hide_cursor(void)
392
{
393
    if (!cursor_hide)
394
        return;
395

    
396
    if (kbd_mouse_is_absolute()) {
397
        SDL_ShowCursor(1);
398
        SDL_SetCursor(sdl_cursor_hidden);
399
    } else {
400
        SDL_ShowCursor(0);
401
    }
402
}
403

    
404
static void sdl_show_cursor(void)
405
{
406
    if (!cursor_hide)
407
        return;
408

    
409
    if (!kbd_mouse_is_absolute()) {
410
        SDL_ShowCursor(1);
411
        if (guest_cursor &&
412
                (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
413
            SDL_SetCursor(guest_sprite);
414
        else
415
            SDL_SetCursor(sdl_cursor_normal);
416
    }
417
}
418

    
419
static void sdl_grab_start(void)
420
{
421
    if (guest_cursor) {
422
        SDL_SetCursor(guest_sprite);
423
        if (!kbd_mouse_is_absolute() && !absolute_enabled)
424
            SDL_WarpMouse(guest_x, guest_y);
425
    } else
426
        sdl_hide_cursor();
427

    
428
    if (SDL_WM_GrabInput(SDL_GRAB_ON) == SDL_GRAB_ON) {
429
        gui_grab = 1;
430
        sdl_update_caption();
431
    } else
432
        sdl_show_cursor();
433
}
434

    
435
static void sdl_grab_end(void)
436
{
437
    SDL_WM_GrabInput(SDL_GRAB_OFF);
438
    gui_grab = 0;
439
    sdl_show_cursor();
440
    sdl_update_caption();
441
}
442

    
443
static void sdl_send_mouse_event(int dx, int dy, int dz, int x, int y, int state)
444
{
445
    int buttons;
446
    buttons = 0;
447
    if (state & SDL_BUTTON(SDL_BUTTON_LEFT))
448
        buttons |= MOUSE_EVENT_LBUTTON;
449
    if (state & SDL_BUTTON(SDL_BUTTON_RIGHT))
450
        buttons |= MOUSE_EVENT_RBUTTON;
451
    if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE))
452
        buttons |= MOUSE_EVENT_MBUTTON;
453

    
454
    if (kbd_mouse_is_absolute()) {
455
        if (!absolute_enabled) {
456
            sdl_hide_cursor();
457
            if (gui_grab) {
458
                sdl_grab_end();
459
            }
460
            absolute_enabled = 1;
461
        }
462

    
463
       dx = x * 0x7FFF / (width - 1);
464
       dy = y * 0x7FFF / (height - 1);
465
    } else if (absolute_enabled) {
466
        sdl_show_cursor();
467
        absolute_enabled = 0;
468
    } else if (guest_cursor) {
469
        x -= guest_x;
470
        y -= guest_y;
471
        guest_x += x;
472
        guest_y += y;
473
        dx = x;
474
        dy = y;
475
    }
476

    
477
    kbd_mouse_event(dx, dy, dz, buttons);
478
}
479

    
480
static void toggle_full_screen(DisplayState *ds)
481
{
482
    gui_fullscreen = !gui_fullscreen;
483
    do_sdl_resize(real_screen->w, real_screen->h, real_screen->format->BitsPerPixel);
484
    if (gui_fullscreen) {
485
        gui_saved_grab = gui_grab;
486
        sdl_grab_start();
487
    } else {
488
        if (!gui_saved_grab)
489
            sdl_grab_end();
490
    }
491
    vga_hw_invalidate();
492
    vga_hw_update();
493
}
494

    
495
static void sdl_refresh(DisplayState *ds)
496
{
497
    SDL_Event ev1, *ev = &ev1;
498
    int mod_state;
499
    int buttonstate = SDL_GetMouseState(NULL, NULL);
500

    
501
    if (last_vm_running != vm_running) {
502
        last_vm_running = vm_running;
503
        sdl_update_caption();
504
    }
505

    
506
    vga_hw_update();
507
    SDL_EnableUNICODE(!is_graphic_console());
508

    
509
    while (SDL_PollEvent(ev)) {
510
        switch (ev->type) {
511
        case SDL_VIDEOEXPOSE:
512
            sdl_update(ds, 0, 0, real_screen->w, real_screen->h);
513
            break;
514
        case SDL_KEYDOWN:
515
        case SDL_KEYUP:
516
            if (ev->type == SDL_KEYDOWN) {
517
                if (!alt_grab) {
518
                    mod_state = (SDL_GetModState() & gui_grab_code) ==
519
                                gui_grab_code;
520
                } else {
521
                    mod_state = (SDL_GetModState() & (gui_grab_code | KMOD_LSHIFT)) ==
522
                                (gui_grab_code | KMOD_LSHIFT);
523
                }
524
                gui_key_modifier_pressed = mod_state;
525
                if (gui_key_modifier_pressed) {
526
                    int keycode;
527
                    keycode = sdl_keyevent_to_keycode(&ev->key);
528
                    switch(keycode) {
529
                    case 0x21: /* 'f' key on US keyboard */
530
                        toggle_full_screen(ds);
531
                        gui_keysym = 1;
532
                        break;
533
                    case 0x02 ... 0x0a: /* '1' to '9' keys */
534
                        /* Reset the modifiers sent to the current console */
535
                        reset_keys();
536
                        console_select(keycode - 0x02);
537
                        if (!is_graphic_console()) {
538
                            /* display grab if going to a text console */
539
                            if (gui_grab)
540
                                sdl_grab_end();
541
                        }
542
                        gui_keysym = 1;
543
                        break;
544
                    default:
545
                        break;
546
                    }
547
                } else if (!is_graphic_console()) {
548
                    int keysym;
549
                    keysym = 0;
550
                    if (ev->key.keysym.mod & (KMOD_LCTRL | KMOD_RCTRL)) {
551
                        switch(ev->key.keysym.sym) {
552
                        case SDLK_UP: keysym = QEMU_KEY_CTRL_UP; break;
553
                        case SDLK_DOWN: keysym = QEMU_KEY_CTRL_DOWN; break;
554
                        case SDLK_LEFT: keysym = QEMU_KEY_CTRL_LEFT; break;
555
                        case SDLK_RIGHT: keysym = QEMU_KEY_CTRL_RIGHT; break;
556
                        case SDLK_HOME: keysym = QEMU_KEY_CTRL_HOME; break;
557
                        case SDLK_END: keysym = QEMU_KEY_CTRL_END; break;
558
                        case SDLK_PAGEUP: keysym = QEMU_KEY_CTRL_PAGEUP; break;
559
                        case SDLK_PAGEDOWN: keysym = QEMU_KEY_CTRL_PAGEDOWN; break;
560
                        default: break;
561
                        }
562
                    } else {
563
                        switch(ev->key.keysym.sym) {
564
                        case SDLK_UP: keysym = QEMU_KEY_UP; break;
565
                        case SDLK_DOWN: keysym = QEMU_KEY_DOWN; break;
566
                        case SDLK_LEFT: keysym = QEMU_KEY_LEFT; break;
567
                        case SDLK_RIGHT: keysym = QEMU_KEY_RIGHT; break;
568
                        case SDLK_HOME: keysym = QEMU_KEY_HOME; break;
569
                        case SDLK_END: keysym = QEMU_KEY_END; break;
570
                        case SDLK_PAGEUP: keysym = QEMU_KEY_PAGEUP; break;
571
                        case SDLK_PAGEDOWN: keysym = QEMU_KEY_PAGEDOWN; break;
572
                        case SDLK_BACKSPACE: keysym = QEMU_KEY_BACKSPACE; break;
573
                        case SDLK_DELETE: keysym = QEMU_KEY_DELETE; break;
574
                        default: break;
575
                        }
576
                    }
577
                    if (keysym) {
578
                        kbd_put_keysym(keysym);
579
                    } else if (ev->key.keysym.unicode != 0) {
580
                        kbd_put_keysym(ev->key.keysym.unicode);
581
                    }
582
                }
583
            } else if (ev->type == SDL_KEYUP) {
584
                if (!alt_grab) {
585
                    mod_state = (ev->key.keysym.mod & gui_grab_code);
586
                } else {
587
                    mod_state = (ev->key.keysym.mod &
588
                                 (gui_grab_code | KMOD_LSHIFT));
589
                }
590
                if (!mod_state) {
591
                    if (gui_key_modifier_pressed) {
592
                        gui_key_modifier_pressed = 0;
593
                        if (gui_keysym == 0) {
594
                            /* exit/enter grab if pressing Ctrl-Alt */
595
                            if (!gui_grab) {
596
                                /* if the application is not active,
597
                                   do not try to enter grab state. It
598
                                   prevents
599
                                   'SDL_WM_GrabInput(SDL_GRAB_ON)'
600
                                   from blocking all the application
601
                                   (SDL bug). */
602
                                if (SDL_GetAppState() & SDL_APPACTIVE)
603
                                    sdl_grab_start();
604
                            } else {
605
                                sdl_grab_end();
606
                            }
607
                            /* SDL does not send back all the
608
                               modifiers key, so we must correct it */
609
                            reset_keys();
610
                            break;
611
                        }
612
                        gui_keysym = 0;
613
                    }
614
                }
615
            }
616
            if (is_graphic_console() && !gui_keysym)
617
                sdl_process_key(&ev->key);
618
            break;
619
        case SDL_QUIT:
620
            if (!no_quit)
621
                qemu_system_shutdown_request();
622
            break;
623
        case SDL_MOUSEMOTION:
624
            if (gui_grab || kbd_mouse_is_absolute() ||
625
                absolute_enabled) {
626
                sdl_send_mouse_event(ev->motion.xrel, ev->motion.yrel, 0,
627
                       ev->motion.x, ev->motion.y, ev->motion.state);
628
            }
629
            break;
630
        case SDL_MOUSEBUTTONDOWN:
631
        case SDL_MOUSEBUTTONUP:
632
            {
633
                SDL_MouseButtonEvent *bev = &ev->button;
634
                if (!gui_grab && !kbd_mouse_is_absolute()) {
635
                    if (ev->type == SDL_MOUSEBUTTONDOWN &&
636
                        (bev->button == SDL_BUTTON_LEFT)) {
637
                        /* start grabbing all events */
638
                        sdl_grab_start();
639
                    }
640
                } else {
641
                    int dz;
642
                    dz = 0;
643
                    if (ev->type == SDL_MOUSEBUTTONDOWN) {
644
                        buttonstate |= SDL_BUTTON(bev->button);
645
                    } else {
646
                        buttonstate &= ~SDL_BUTTON(bev->button);
647
                    }
648
#ifdef SDL_BUTTON_WHEELUP
649
                    if (bev->button == SDL_BUTTON_WHEELUP && ev->type == SDL_MOUSEBUTTONDOWN) {
650
                        dz = -1;
651
                    } else if (bev->button == SDL_BUTTON_WHEELDOWN && ev->type == SDL_MOUSEBUTTONDOWN) {
652
                        dz = 1;
653
                    }
654
#endif
655
                    sdl_send_mouse_event(0, 0, dz, bev->x, bev->y, buttonstate);
656
                }
657
            }
658
            break;
659
        case SDL_ACTIVEEVENT:
660
            if (gui_grab && ev->active.state == SDL_APPINPUTFOCUS &&
661
                !ev->active.gain && !gui_fullscreen_initial_grab) {
662
                sdl_grab_end();
663
            }
664
            if (ev->active.state & SDL_APPACTIVE) {
665
                if (ev->active.gain) {
666
                    /* Back to default interval */
667
                    dcl->gui_timer_interval = 0;
668
                    dcl->idle = 0;
669
                } else {
670
                    /* Sleeping interval */
671
                    dcl->gui_timer_interval = 500;
672
                    dcl->idle = 1;
673
                }
674
            }
675
            break;
676
        default:
677
            break;
678
        }
679
    }
680
}
681

    
682
static void sdl_fill(DisplayState *ds, int x, int y, int w, int h, uint32_t c)
683
{
684
    SDL_Rect dst = { x, y, w, h };
685
    SDL_FillRect(real_screen, &dst, c);
686
}
687

    
688
static void sdl_mouse_warp(int x, int y, int on)
689
{
690
    if (on) {
691
        if (!guest_cursor)
692
            sdl_show_cursor();
693
        if (gui_grab || kbd_mouse_is_absolute() || absolute_enabled) {
694
            SDL_SetCursor(guest_sprite);
695
            if (!kbd_mouse_is_absolute() && !absolute_enabled)
696
                SDL_WarpMouse(x, y);
697
        }
698
    } else if (gui_grab)
699
        sdl_hide_cursor();
700
    guest_cursor = on;
701
    guest_x = x, guest_y = y;
702
}
703

    
704
static void sdl_mouse_define(int width, int height, int bpp,
705
                             int hot_x, int hot_y,
706
                             uint8_t *image, uint8_t *mask)
707
{
708
    uint8_t sprite[256], *line;
709
    int x, y, dst, bypl, src = 0;
710
    if (guest_sprite)
711
        SDL_FreeCursor(guest_sprite);
712

    
713
    memset(sprite, 0, 256);
714
    bypl = ((width * bpp + 31) >> 5) << 2;
715
    for (y = 0, dst = 0; y < height; y ++, image += bypl) {
716
        line = image;
717
        for (x = 0; x < width; x ++, dst ++) {
718
            switch (bpp) {
719
            case 24:
720
                src = *(line ++); src |= *(line ++); src |= *(line ++);
721
                break;
722
            case 16:
723
            case 15:
724
                src = *(line ++); src |= *(line ++);
725
                break;
726
            case 8:
727
                src = *(line ++);
728
                break;
729
            case 4:
730
                src = 0xf & (line[x >> 1] >> ((x & 1)) << 2);
731
                break;
732
            case 2:
733
                src = 3 & (line[x >> 2] >> ((x & 3)) << 1);
734
                break;
735
            case 1:
736
                src = 1 & (line[x >> 3] >> (x & 7));
737
                break;
738
            }
739
            if (!src)
740
                sprite[dst >> 3] |= (1 << (~dst & 7)) & mask[dst >> 3];
741
        }
742
    }
743
    guest_sprite = SDL_CreateCursor(sprite, mask, width, height, hot_x, hot_y);
744

    
745
    if (guest_cursor &&
746
            (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
747
        SDL_SetCursor(guest_sprite);
748
}
749

    
750
static void sdl_cleanup(void)
751
{
752
    if (guest_sprite)
753
        SDL_FreeCursor(guest_sprite);
754
    SDL_Quit();
755
}
756

    
757
void sdl_display_init(DisplayState *ds, int full_screen, int no_frame)
758
{
759
    int flags;
760
    uint8_t data = 0;
761
    DisplayAllocator *da;
762
    const SDL_VideoInfo *vi;
763

    
764
#if defined(__APPLE__)
765
    /* always use generic keymaps */
766
    if (!keyboard_layout)
767
        keyboard_layout = "en-us";
768
#endif
769
    if(keyboard_layout) {
770
        kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout);
771
        if (!kbd_layout)
772
            exit(1);
773
    }
774

    
775
    if (no_frame)
776
        gui_noframe = 1;
777

    
778
    flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
779
    if (SDL_Init (flags)) {
780
        fprintf(stderr, "Could not initialize SDL - exiting\n");
781
        exit(1);
782
    }
783
    vi = SDL_GetVideoInfo();
784
    hostbpp = vi->vfmt->BitsPerPixel;
785

    
786
    dcl = qemu_mallocz(sizeof(DisplayChangeListener));
787
    dcl->dpy_update = sdl_update;
788
    dcl->dpy_resize = sdl_resize;
789
    dcl->dpy_refresh = sdl_refresh;
790
    dcl->dpy_setdata = sdl_setdata;
791
    dcl->dpy_fill = sdl_fill;
792
    ds->mouse_set = sdl_mouse_warp;
793
    ds->cursor_define = sdl_mouse_define;
794
    register_displaychangelistener(ds, dcl);
795

    
796
    da = qemu_mallocz(sizeof(DisplayAllocator));
797
    da->create_displaysurface = sdl_create_displaysurface;
798
    da->resize_displaysurface = sdl_resize_displaysurface;
799
    da->free_displaysurface = sdl_free_displaysurface;
800
    if (register_displayallocator(ds, da) == da) {
801
        DisplaySurface *surf;
802
        surf = sdl_create_displaysurface(ds_get_width(ds), ds_get_height(ds));
803
        defaultallocator_free_displaysurface(ds->surface);
804
        ds->surface = surf;
805
        dpy_resize(ds);
806
    }
807

    
808
    sdl_update_caption();
809
    SDL_EnableKeyRepeat(250, 50);
810
    gui_grab = 0;
811

    
812
    sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0);
813
    sdl_cursor_normal = SDL_GetCursor();
814

    
815
    atexit(sdl_cleanup);
816
    if (full_screen) {
817
        gui_fullscreen = 1;
818
        gui_fullscreen_initial_grab = 1;
819
        sdl_grab_start();
820
    }
821
}