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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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25
/* Avoid compiler warning because macro is redefined in SDL_syswm.h. */
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#undef WIN32_LEAN_AND_MEAN
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28
#include <SDL.h>
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#include <SDL_syswm.h>
30

    
31
#ifndef _WIN32
32
#include <signal.h>
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#endif
34

    
35
#include "qemu-common.h"
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#include "console.h"
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#include "sysemu.h"
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#include "x_keymap.h"
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#include "sdl_zoom.h"
40

    
41
static DisplayChangeListener *dcl;
42
static SDL_Surface *real_screen;
43
static SDL_Surface *guest_screen = NULL;
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static int gui_grab; /* if true, all keyboard/mouse events are grabbed */
45
static int last_vm_running;
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_fullscreen_initial_grab;
52
static int gui_grab_code = KMOD_LALT | KMOD_LCTRL;
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static uint8_t modifiers_state[256];
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static int width, height;
55
static SDL_Cursor *sdl_cursor_normal;
56
static SDL_Cursor *sdl_cursor_hidden;
57
static int absolute_enabled = 0;
58
static int guest_cursor = 0;
59
static int guest_x, guest_y;
60
static SDL_Cursor *guest_sprite = NULL;
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static uint8_t allocator;
62
static SDL_PixelFormat host_format;
63
static int scaling_active = 0;
64
static Notifier mouse_mode_notifier;
65

    
66
static void sdl_update(DisplayState *ds, int x, int y, int w, int h)
67
{
68
    //    printf("updating x=%d y=%d w=%d h=%d\n", x, y, w, h);
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    SDL_Rect rec;
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    rec.x = x;
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    rec.y = y;
72
    rec.w = w;
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    rec.h = h;
74

    
75
    if (guest_screen) {
76
        if (!scaling_active) {
77
            SDL_BlitSurface(guest_screen, &rec, real_screen, &rec);
78
        } else {
79
            if (sdl_zoom_blit(guest_screen, real_screen, SMOOTHING_ON, &rec) < 0) {
80
                fprintf(stderr, "Zoom blit failed\n");
81
                exit(1);
82
            }
83
        }
84
    } 
85
    SDL_UpdateRect(real_screen, rec.x, rec.y, rec.w, rec.h);
86
}
87

    
88
static void sdl_setdata(DisplayState *ds)
89
{
90
    if (guest_screen != NULL) SDL_FreeSurface(guest_screen);
91

    
92
    guest_screen = SDL_CreateRGBSurfaceFrom(ds_get_data(ds), ds_get_width(ds), ds_get_height(ds),
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                                            ds_get_bits_per_pixel(ds), ds_get_linesize(ds),
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                                            ds->surface->pf.rmask, ds->surface->pf.gmask,
95
                                            ds->surface->pf.bmask, ds->surface->pf.amask);
96
}
97

    
98
static void do_sdl_resize(int new_width, int new_height, int bpp)
99
{
100
    int flags;
101

    
102
    //    printf("resizing to %d %d\n", w, h);
103

    
104
    flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL|SDL_RESIZABLE;
105
    if (gui_fullscreen)
106
        flags |= SDL_FULLSCREEN;
107
    if (gui_noframe)
108
        flags |= SDL_NOFRAME;
109

    
110
    width = new_width;
111
    height = new_height;
112
    real_screen = SDL_SetVideoMode(width, height, bpp, flags);
113
    if (!real_screen) {
114
        fprintf(stderr, "Could not open SDL display (%dx%dx%d): %s\n", width, 
115
                height, bpp, SDL_GetError());
116
        exit(1);
117
    }
118
}
119

    
120
static void sdl_resize(DisplayState *ds)
121
{
122
    if  (!allocator) {
123
        if (!scaling_active)
124
            do_sdl_resize(ds_get_width(ds), ds_get_height(ds), 0);
125
        else if (real_screen->format->BitsPerPixel != ds_get_bits_per_pixel(ds))
126
            do_sdl_resize(real_screen->w, real_screen->h, ds_get_bits_per_pixel(ds));
127
        sdl_setdata(ds);
128
    } else {
129
        if (guest_screen != NULL) {
130
            SDL_FreeSurface(guest_screen);
131
            guest_screen = NULL;
132
        }
133
    }
134
}
135

    
136
static PixelFormat sdl_to_qemu_pixelformat(SDL_PixelFormat *sdl_pf)
137
{
138
    PixelFormat qemu_pf;
139

    
140
    memset(&qemu_pf, 0x00, sizeof(PixelFormat));
141

    
142
    qemu_pf.bits_per_pixel = sdl_pf->BitsPerPixel;
143
    qemu_pf.bytes_per_pixel = sdl_pf->BytesPerPixel;
144
    qemu_pf.depth = (qemu_pf.bits_per_pixel) == 32 ? 24 : (qemu_pf.bits_per_pixel);
145

    
146
    qemu_pf.rmask = sdl_pf->Rmask;
147
    qemu_pf.gmask = sdl_pf->Gmask;
148
    qemu_pf.bmask = sdl_pf->Bmask;
149
    qemu_pf.amask = sdl_pf->Amask;
150

    
151
    qemu_pf.rshift = sdl_pf->Rshift;
152
    qemu_pf.gshift = sdl_pf->Gshift;
153
    qemu_pf.bshift = sdl_pf->Bshift;
154
    qemu_pf.ashift = sdl_pf->Ashift;
155

    
156
    qemu_pf.rbits = 8 - sdl_pf->Rloss;
157
    qemu_pf.gbits = 8 - sdl_pf->Gloss;
158
    qemu_pf.bbits = 8 - sdl_pf->Bloss;
159
    qemu_pf.abits = 8 - sdl_pf->Aloss;
160

    
161
    qemu_pf.rmax = ((1 << qemu_pf.rbits) - 1);
162
    qemu_pf.gmax = ((1 << qemu_pf.gbits) - 1);
163
    qemu_pf.bmax = ((1 << qemu_pf.bbits) - 1);
164
    qemu_pf.amax = ((1 << qemu_pf.abits) - 1);
165

    
166
    return qemu_pf;
167
}
168

    
169
static DisplaySurface* sdl_create_displaysurface(int width, int height)
170
{
171
    DisplaySurface *surface = (DisplaySurface*) qemu_mallocz(sizeof(DisplaySurface));
172
    if (surface == NULL) {
173
        fprintf(stderr, "sdl_create_displaysurface: malloc failed\n");
174
        exit(1);
175
    }
176

    
177
    surface->width = width;
178
    surface->height = height;
179
    
180
    if (scaling_active) {
181
        if (host_format.BytesPerPixel != 2 && host_format.BytesPerPixel != 4) {
182
            surface->linesize = width * 4;
183
            surface->pf = qemu_default_pixelformat(32);
184
        } else {
185
            surface->linesize = width * host_format.BytesPerPixel;
186
            surface->pf = sdl_to_qemu_pixelformat(&host_format);
187
        }
188
#ifdef HOST_WORDS_BIGENDIAN
189
        surface->flags = QEMU_ALLOCATED_FLAG | QEMU_BIG_ENDIAN_FLAG;
190
#else
191
        surface->flags = QEMU_ALLOCATED_FLAG;
192
#endif
193
        surface->data = (uint8_t*) qemu_mallocz(surface->linesize * surface->height);
194

    
195
        return surface;
196
    }
197

    
198
    if (host_format.BitsPerPixel == 16)
199
        do_sdl_resize(width, height, 16);
200
    else
201
        do_sdl_resize(width, height, 32);
202

    
203
    surface->pf = sdl_to_qemu_pixelformat(real_screen->format);
204
    surface->linesize = real_screen->pitch;
205
    surface->data = real_screen->pixels;
206

    
207
#ifdef HOST_WORDS_BIGENDIAN
208
    surface->flags = QEMU_REALPIXELS_FLAG | QEMU_BIG_ENDIAN_FLAG;
209
#else
210
    surface->flags = QEMU_REALPIXELS_FLAG;
211
#endif
212
    allocator = 1;
213

    
214
    return surface;
215
}
216

    
217
static void sdl_free_displaysurface(DisplaySurface *surface)
218
{
219
    allocator = 0;
220
    if (surface == NULL)
221
        return;
222

    
223
    if (surface->flags & QEMU_ALLOCATED_FLAG)
224
        qemu_free(surface->data);
225
    qemu_free(surface);
226
}
227

    
228
static DisplaySurface* sdl_resize_displaysurface(DisplaySurface *surface, int width, int height)
229
{
230
    sdl_free_displaysurface(surface);
231
    return sdl_create_displaysurface(width, height);
232
}
233

    
234
/* generic keyboard conversion */
235

    
236
#include "sdl_keysym.h"
237

    
238
static kbd_layout_t *kbd_layout = NULL;
239

    
240
static uint8_t sdl_keyevent_to_keycode_generic(const SDL_KeyboardEvent *ev)
241
{
242
    int keysym;
243
    /* workaround for X11+SDL bug with AltGR */
244
    keysym = ev->keysym.sym;
245
    if (keysym == 0 && ev->keysym.scancode == 113)
246
        keysym = SDLK_MODE;
247
    /* For Japanese key '\' and '|' */
248
    if (keysym == 92 && ev->keysym.scancode == 133) {
249
        keysym = 0xa5;
250
    }
251
    return keysym2scancode(kbd_layout, keysym) & SCANCODE_KEYMASK;
252
}
253

    
254
/* specific keyboard conversions from scan codes */
255

    
256
#if defined(_WIN32)
257

    
258
static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
259
{
260
    return ev->keysym.scancode;
261
}
262

    
263
#else
264

    
265
#if defined(SDL_VIDEO_DRIVER_X11)
266
#include <X11/XKBlib.h>
267

    
268
static int check_for_evdev(void)
269
{
270
    SDL_SysWMinfo info;
271
    XkbDescPtr desc = NULL;
272
    int has_evdev = 0;
273
    char *keycodes = NULL;
274

    
275
    SDL_VERSION(&info.version);
276
    if (!SDL_GetWMInfo(&info)) {
277
        return 0;
278
    }
279
    desc = XkbGetKeyboard(info.info.x11.display,
280
                          XkbGBN_AllComponentsMask,
281
                          XkbUseCoreKbd);
282
    if (desc && desc->names) {
283
        keycodes = XGetAtomName(info.info.x11.display, desc->names->keycodes);
284
        if (keycodes == NULL) {
285
            fprintf(stderr, "could not lookup keycode name\n");
286
        } else if (strstart(keycodes, "evdev", NULL)) {
287
            has_evdev = 1;
288
        } else if (!strstart(keycodes, "xfree86", NULL)) {
289
            fprintf(stderr, "unknown keycodes `%s', please report to "
290
                    "qemu-devel@nongnu.org\n", keycodes);
291
        }
292
    }
293

    
294
    if (desc) {
295
        XkbFreeKeyboard(desc, XkbGBN_AllComponentsMask, True);
296
    }
297
    if (keycodes) {
298
        XFree(keycodes);
299
    }
300
    return has_evdev;
301
}
302
#else
303
static int check_for_evdev(void)
304
{
305
        return 0;
306
}
307
#endif
308

    
309
static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
310
{
311
    int keycode;
312
    static int has_evdev = -1;
313

    
314
    if (has_evdev == -1)
315
        has_evdev = check_for_evdev();
316

    
317
    keycode = ev->keysym.scancode;
318

    
319
    if (keycode < 9) {
320
        keycode = 0;
321
    } else if (keycode < 97) {
322
        keycode -= 8; /* just an offset */
323
    } else if (keycode < 158) {
324
        /* use conversion table */
325
        if (has_evdev)
326
            keycode = translate_evdev_keycode(keycode - 97);
327
        else
328
            keycode = translate_xfree86_keycode(keycode - 97);
329
    } else if (keycode == 208) { /* Hiragana_Katakana */
330
        keycode = 0x70;
331
    } else if (keycode == 211) { /* backslash */
332
        keycode = 0x73;
333
    } else {
334
        keycode = 0;
335
    }
336
    return keycode;
337
}
338

    
339
#endif
340

    
341
static void reset_keys(void)
342
{
343
    int i;
344
    for(i = 0; i < 256; i++) {
345
        if (modifiers_state[i]) {
346
            if (i & SCANCODE_GREY)
347
                kbd_put_keycode(SCANCODE_EMUL0);
348
            kbd_put_keycode(i | SCANCODE_UP);
349
            modifiers_state[i] = 0;
350
        }
351
    }
352
}
353

    
354
static void sdl_process_key(SDL_KeyboardEvent *ev)
355
{
356
    int keycode, v;
357

    
358
    if (ev->keysym.sym == SDLK_PAUSE) {
359
        /* specific case */
360
        v = 0;
361
        if (ev->type == SDL_KEYUP)
362
            v |= SCANCODE_UP;
363
        kbd_put_keycode(0xe1);
364
        kbd_put_keycode(0x1d | v);
365
        kbd_put_keycode(0x45 | v);
366
        return;
367
    }
368

    
369
    if (kbd_layout) {
370
        keycode = sdl_keyevent_to_keycode_generic(ev);
371
    } else {
372
        keycode = sdl_keyevent_to_keycode(ev);
373
    }
374

    
375
    switch(keycode) {
376
    case 0x00:
377
        /* sent when leaving window: reset the modifiers state */
378
        reset_keys();
379
        return;
380
    case 0x2a:                          /* Left Shift */
381
    case 0x36:                          /* Right Shift */
382
    case 0x1d:                          /* Left CTRL */
383
    case 0x9d:                          /* Right CTRL */
384
    case 0x38:                          /* Left ALT */
385
    case 0xb8:                         /* Right ALT */
386
        if (ev->type == SDL_KEYUP)
387
            modifiers_state[keycode] = 0;
388
        else
389
            modifiers_state[keycode] = 1;
390
        break;
391
#define QEMU_SDL_VERSION ((SDL_MAJOR_VERSION << 8) + SDL_MINOR_VERSION)
392
#if QEMU_SDL_VERSION < 0x102 || QEMU_SDL_VERSION == 0x102 && SDL_PATCHLEVEL < 14
393
        /* SDL versions before 1.2.14 don't support key up for caps/num lock. */
394
    case 0x45: /* num lock */
395
    case 0x3a: /* caps lock */
396
        /* SDL does not send the key up event, so we generate it */
397
        kbd_put_keycode(keycode);
398
        kbd_put_keycode(keycode | SCANCODE_UP);
399
        return;
400
#endif
401
    }
402

    
403
    /* now send the key code */
404
    if (keycode & SCANCODE_GREY)
405
        kbd_put_keycode(SCANCODE_EMUL0);
406
    if (ev->type == SDL_KEYUP)
407
        kbd_put_keycode(keycode | SCANCODE_UP);
408
    else
409
        kbd_put_keycode(keycode & SCANCODE_KEYCODEMASK);
410
}
411

    
412
static void sdl_update_caption(void)
413
{
414
    char win_title[1024];
415
    char icon_title[1024];
416
    const char *status = "";
417

    
418
    if (!vm_running)
419
        status = " [Stopped]";
420
    else if (gui_grab) {
421
        if (alt_grab)
422
            status = " - Press Ctrl-Alt-Shift to exit mouse grab";
423
        else if (ctrl_grab)
424
            status = " - Press Right-Ctrl to exit mouse grab";
425
        else
426
            status = " - Press Ctrl-Alt to exit mouse grab";
427
    }
428

    
429
    if (qemu_name) {
430
        snprintf(win_title, sizeof(win_title), "QEMU (%s)%s", qemu_name, status);
431
        snprintf(icon_title, sizeof(icon_title), "QEMU (%s)", qemu_name);
432
    } else {
433
        snprintf(win_title, sizeof(win_title), "QEMU%s", status);
434
        snprintf(icon_title, sizeof(icon_title), "QEMU");
435
    }
436

    
437
    SDL_WM_SetCaption(win_title, icon_title);
438
}
439

    
440
static void sdl_hide_cursor(void)
441
{
442
    if (!cursor_hide)
443
        return;
444

    
445
    if (kbd_mouse_is_absolute()) {
446
        SDL_ShowCursor(1);
447
        SDL_SetCursor(sdl_cursor_hidden);
448
    } else {
449
        SDL_ShowCursor(0);
450
    }
451
}
452

    
453
static void sdl_show_cursor(void)
454
{
455
    if (!cursor_hide)
456
        return;
457

    
458
    if (!kbd_mouse_is_absolute()) {
459
        SDL_ShowCursor(1);
460
        if (guest_cursor &&
461
                (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
462
            SDL_SetCursor(guest_sprite);
463
        else
464
            SDL_SetCursor(sdl_cursor_normal);
465
    }
466
}
467

    
468
static void sdl_grab_start(void)
469
{
470
    if (guest_cursor) {
471
        SDL_SetCursor(guest_sprite);
472
        if (!kbd_mouse_is_absolute() && !absolute_enabled)
473
            SDL_WarpMouse(guest_x, guest_y);
474
    } else
475
        sdl_hide_cursor();
476

    
477
    if (SDL_WM_GrabInput(SDL_GRAB_ON) == SDL_GRAB_ON) {
478
        gui_grab = 1;
479
        sdl_update_caption();
480
    } else
481
        sdl_show_cursor();
482
}
483

    
484
static void sdl_grab_end(void)
485
{
486
    SDL_WM_GrabInput(SDL_GRAB_OFF);
487
    gui_grab = 0;
488
    sdl_show_cursor();
489
    sdl_update_caption();
490
}
491

    
492
static void sdl_mouse_mode_change(Notifier *notify)
493
{
494
    if (kbd_mouse_is_absolute()) {
495
        if (!absolute_enabled) {
496
            sdl_hide_cursor();
497
            if (gui_grab) {
498
                sdl_grab_end();
499
            }
500
            absolute_enabled = 1;
501
        }
502
    } else if (absolute_enabled) {
503
        sdl_show_cursor();
504
        absolute_enabled = 0;
505
    }
506
}
507

    
508
static void sdl_send_mouse_event(int dx, int dy, int dz, int x, int y, int state)
509
{
510
    int buttons;
511
    buttons = 0;
512
    if (state & SDL_BUTTON(SDL_BUTTON_LEFT))
513
        buttons |= MOUSE_EVENT_LBUTTON;
514
    if (state & SDL_BUTTON(SDL_BUTTON_RIGHT))
515
        buttons |= MOUSE_EVENT_RBUTTON;
516
    if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE))
517
        buttons |= MOUSE_EVENT_MBUTTON;
518

    
519
    if (kbd_mouse_is_absolute()) {
520
       dx = x * 0x7FFF / (width - 1);
521
       dy = y * 0x7FFF / (height - 1);
522
    } else if (guest_cursor) {
523
        x -= guest_x;
524
        y -= guest_y;
525
        guest_x += x;
526
        guest_y += y;
527
        dx = x;
528
        dy = y;
529
    }
530

    
531
    kbd_mouse_event(dx, dy, dz, buttons);
532
}
533

    
534
static void toggle_full_screen(DisplayState *ds)
535
{
536
    gui_fullscreen = !gui_fullscreen;
537
    do_sdl_resize(real_screen->w, real_screen->h, real_screen->format->BitsPerPixel);
538
    if (gui_fullscreen) {
539
        scaling_active = 0;
540
        gui_saved_grab = gui_grab;
541
        sdl_grab_start();
542
    } else {
543
        if (!gui_saved_grab)
544
            sdl_grab_end();
545
    }
546
    vga_hw_invalidate();
547
    vga_hw_update();
548
}
549

    
550
static void sdl_refresh(DisplayState *ds)
551
{
552
    SDL_Event ev1, *ev = &ev1;
553
    int mod_state;
554
    int buttonstate = SDL_GetMouseState(NULL, NULL);
555

    
556
    if (last_vm_running != vm_running) {
557
        last_vm_running = vm_running;
558
        sdl_update_caption();
559
    }
560

    
561
    vga_hw_update();
562
    SDL_EnableUNICODE(!is_graphic_console());
563

    
564
    while (SDL_PollEvent(ev)) {
565
        switch (ev->type) {
566
        case SDL_VIDEOEXPOSE:
567
            sdl_update(ds, 0, 0, real_screen->w, real_screen->h);
568
            break;
569
        case SDL_KEYDOWN:
570
        case SDL_KEYUP:
571
            if (ev->type == SDL_KEYDOWN) {
572
                if (alt_grab) {
573
                    mod_state = (SDL_GetModState() & (gui_grab_code | KMOD_LSHIFT)) ==
574
                                (gui_grab_code | KMOD_LSHIFT);
575
                } else if (ctrl_grab) {
576
                    mod_state = (SDL_GetModState() & KMOD_RCTRL) == KMOD_RCTRL;
577
                } else {
578
                    mod_state = (SDL_GetModState() & gui_grab_code) ==
579
                                gui_grab_code;
580
                }
581
                gui_key_modifier_pressed = mod_state;
582
                if (gui_key_modifier_pressed) {
583
                    int keycode;
584
                    keycode = sdl_keyevent_to_keycode(&ev->key);
585
                    switch(keycode) {
586
                    case 0x21: /* 'f' key on US keyboard */
587
                        toggle_full_screen(ds);
588
                        gui_keysym = 1;
589
                        break;
590
                    case 0x16: /* 'u' key on US keyboard */
591
                        scaling_active = 0;
592
                        sdl_resize(ds);
593
                        vga_hw_invalidate();
594
                        vga_hw_update();
595
                        break;
596
                    case 0x02 ... 0x0a: /* '1' to '9' keys */
597
                        /* Reset the modifiers sent to the current console */
598
                        reset_keys();
599
                        console_select(keycode - 0x02);
600
                        if (!is_graphic_console()) {
601
                            /* display grab if going to a text console */
602
                            if (gui_grab)
603
                                sdl_grab_end();
604
                        }
605
                        gui_keysym = 1;
606
                        break;
607
                    default:
608
                        break;
609
                    }
610
                } else if (!is_graphic_console()) {
611
                    int keysym;
612
                    keysym = 0;
613
                    if (ev->key.keysym.mod & (KMOD_LCTRL | KMOD_RCTRL)) {
614
                        switch(ev->key.keysym.sym) {
615
                        case SDLK_UP: keysym = QEMU_KEY_CTRL_UP; break;
616
                        case SDLK_DOWN: keysym = QEMU_KEY_CTRL_DOWN; break;
617
                        case SDLK_LEFT: keysym = QEMU_KEY_CTRL_LEFT; break;
618
                        case SDLK_RIGHT: keysym = QEMU_KEY_CTRL_RIGHT; break;
619
                        case SDLK_HOME: keysym = QEMU_KEY_CTRL_HOME; break;
620
                        case SDLK_END: keysym = QEMU_KEY_CTRL_END; break;
621
                        case SDLK_PAGEUP: keysym = QEMU_KEY_CTRL_PAGEUP; break;
622
                        case SDLK_PAGEDOWN: keysym = QEMU_KEY_CTRL_PAGEDOWN; break;
623
                        default: break;
624
                        }
625
                    } else {
626
                        switch(ev->key.keysym.sym) {
627
                        case SDLK_UP: keysym = QEMU_KEY_UP; break;
628
                        case SDLK_DOWN: keysym = QEMU_KEY_DOWN; break;
629
                        case SDLK_LEFT: keysym = QEMU_KEY_LEFT; break;
630
                        case SDLK_RIGHT: keysym = QEMU_KEY_RIGHT; break;
631
                        case SDLK_HOME: keysym = QEMU_KEY_HOME; break;
632
                        case SDLK_END: keysym = QEMU_KEY_END; break;
633
                        case SDLK_PAGEUP: keysym = QEMU_KEY_PAGEUP; break;
634
                        case SDLK_PAGEDOWN: keysym = QEMU_KEY_PAGEDOWN; break;
635
                        case SDLK_BACKSPACE: keysym = QEMU_KEY_BACKSPACE; break;
636
                        case SDLK_DELETE: keysym = QEMU_KEY_DELETE; break;
637
                        default: break;
638
                        }
639
                    }
640
                    if (keysym) {
641
                        kbd_put_keysym(keysym);
642
                    } else if (ev->key.keysym.unicode != 0) {
643
                        kbd_put_keysym(ev->key.keysym.unicode);
644
                    }
645
                }
646
            } else if (ev->type == SDL_KEYUP) {
647
                if (!alt_grab) {
648
                    mod_state = (ev->key.keysym.mod & gui_grab_code);
649
                } else {
650
                    mod_state = (ev->key.keysym.mod &
651
                                 (gui_grab_code | KMOD_LSHIFT));
652
                }
653
                if (!mod_state) {
654
                    if (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 the application is not active,
660
                                   do not try to enter grab state. It
661
                                   prevents
662
                                   'SDL_WM_GrabInput(SDL_GRAB_ON)'
663
                                   from blocking all the application
664
                                   (SDL bug). */
665
                                if (SDL_GetAppState() & SDL_APPACTIVE)
666
                                    sdl_grab_start();
667
                            } else {
668
                                sdl_grab_end();
669
                            }
670
                            /* SDL does not send back all the
671
                               modifiers key, so we must correct it */
672
                            reset_keys();
673
                            break;
674
                        }
675
                        gui_keysym = 0;
676
                    }
677
                }
678
            }
679
            if (is_graphic_console() && !gui_keysym)
680
                sdl_process_key(&ev->key);
681
            break;
682
        case SDL_QUIT:
683
            if (!no_quit)
684
                qemu_system_shutdown_request();
685
            break;
686
        case SDL_MOUSEMOTION:
687
            if (gui_grab || kbd_mouse_is_absolute() ||
688
                absolute_enabled) {
689
                sdl_send_mouse_event(ev->motion.xrel, ev->motion.yrel, 0,
690
                       ev->motion.x, ev->motion.y, ev->motion.state);
691
            }
692
            break;
693
        case SDL_MOUSEBUTTONDOWN:
694
        case SDL_MOUSEBUTTONUP:
695
            {
696
                SDL_MouseButtonEvent *bev = &ev->button;
697
                if (!gui_grab && !kbd_mouse_is_absolute()) {
698
                    if (ev->type == SDL_MOUSEBUTTONDOWN &&
699
                        (bev->button == SDL_BUTTON_LEFT)) {
700
                        /* start grabbing all events */
701
                        sdl_grab_start();
702
                    }
703
                } else {
704
                    int dz;
705
                    dz = 0;
706
                    if (ev->type == SDL_MOUSEBUTTONDOWN) {
707
                        buttonstate |= SDL_BUTTON(bev->button);
708
                    } else {
709
                        buttonstate &= ~SDL_BUTTON(bev->button);
710
                    }
711
#ifdef SDL_BUTTON_WHEELUP
712
                    if (bev->button == SDL_BUTTON_WHEELUP && ev->type == SDL_MOUSEBUTTONDOWN) {
713
                        dz = -1;
714
                    } else if (bev->button == SDL_BUTTON_WHEELDOWN && ev->type == SDL_MOUSEBUTTONDOWN) {
715
                        dz = 1;
716
                    }
717
#endif
718
                    sdl_send_mouse_event(0, 0, dz, bev->x, bev->y, buttonstate);
719
                }
720
            }
721
            break;
722
        case SDL_ACTIVEEVENT:
723
            if (gui_grab && ev->active.state == SDL_APPINPUTFOCUS &&
724
                !ev->active.gain && !gui_fullscreen_initial_grab) {
725
                sdl_grab_end();
726
            }
727
            if (ev->active.state & SDL_APPACTIVE) {
728
                if (ev->active.gain) {
729
                    /* Back to default interval */
730
                    dcl->gui_timer_interval = 0;
731
                    dcl->idle = 0;
732
                } else {
733
                    /* Sleeping interval */
734
                    dcl->gui_timer_interval = 500;
735
                    dcl->idle = 1;
736
                }
737
            }
738
            break;
739
        case SDL_VIDEORESIZE:
740
        {
741
            SDL_ResizeEvent *rev = &ev->resize;
742
            int bpp = real_screen->format->BitsPerPixel;
743
            if (bpp != 16 && bpp != 32)
744
                bpp = 32;
745
            do_sdl_resize(rev->w, rev->h, bpp);
746
            scaling_active = 1;
747
            if (!is_buffer_shared(ds->surface)) {
748
                ds->surface = qemu_resize_displaysurface(ds, ds_get_width(ds), ds_get_height(ds));
749
                dpy_resize(ds);
750
            }
751
            vga_hw_invalidate();
752
            vga_hw_update();
753
            break;
754
        }
755
        default:
756
            break;
757
        }
758
    }
759
}
760

    
761
static void sdl_fill(DisplayState *ds, int x, int y, int w, int h, uint32_t c)
762
{
763
    SDL_Rect dst = { x, y, w, h };
764
    SDL_FillRect(real_screen, &dst, c);
765
}
766

    
767
static void sdl_mouse_warp(int x, int y, int on)
768
{
769
    if (on) {
770
        if (!guest_cursor)
771
            sdl_show_cursor();
772
        if (gui_grab || kbd_mouse_is_absolute() || absolute_enabled) {
773
            SDL_SetCursor(guest_sprite);
774
            if (!kbd_mouse_is_absolute() && !absolute_enabled)
775
                SDL_WarpMouse(x, y);
776
        }
777
    } else if (gui_grab)
778
        sdl_hide_cursor();
779
    guest_cursor = on;
780
    guest_x = x, guest_y = y;
781
}
782

    
783
static void sdl_mouse_define(QEMUCursor *c)
784
{
785
    uint8_t *image, *mask;
786
    int bpl;
787

    
788
    if (guest_sprite)
789
        SDL_FreeCursor(guest_sprite);
790

    
791
    bpl = cursor_get_mono_bpl(c);
792
    image = qemu_mallocz(bpl * c->height);
793
    mask  = qemu_mallocz(bpl * c->height);
794
    cursor_get_mono_image(c, 0x000000, image);
795
    cursor_get_mono_mask(c, 0, mask);
796
    guest_sprite = SDL_CreateCursor(image, mask, c->width, c->height,
797
                                    c->hot_x, c->hot_y);
798
    qemu_free(image);
799
    qemu_free(mask);
800

    
801
    if (guest_cursor &&
802
            (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
803
        SDL_SetCursor(guest_sprite);
804
}
805

    
806
static void sdl_cleanup(void)
807
{
808
    if (guest_sprite)
809
        SDL_FreeCursor(guest_sprite);
810
    SDL_QuitSubSystem(SDL_INIT_VIDEO);
811
}
812

    
813
void sdl_display_init(DisplayState *ds, int full_screen, int no_frame)
814
{
815
    int flags;
816
    uint8_t data = 0;
817
    DisplayAllocator *da;
818
    const SDL_VideoInfo *vi;
819

    
820
#if defined(__APPLE__)
821
    /* always use generic keymaps */
822
    if (!keyboard_layout)
823
        keyboard_layout = "en-us";
824
#endif
825
    if(keyboard_layout) {
826
        kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout);
827
        if (!kbd_layout)
828
            exit(1);
829
    }
830

    
831
    if (no_frame)
832
        gui_noframe = 1;
833

    
834
    if (!full_screen) {
835
        setenv("SDL_VIDEO_ALLOW_SCREENSAVER", "1", 0);
836
    }
837

    
838
    /* Enable normal up/down events for Caps-Lock and Num-Lock keys.
839
     * This requires SDL >= 1.2.14. */
840
    setenv("SDL_DISABLE_LOCK_KEYS", "1", 1);
841

    
842
    flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
843
    if (SDL_Init (flags)) {
844
        fprintf(stderr, "Could not initialize SDL(%s) - exiting\n",
845
                SDL_GetError());
846
        exit(1);
847
    }
848
    vi = SDL_GetVideoInfo();
849
    host_format = *(vi->vfmt);
850

    
851
    dcl = qemu_mallocz(sizeof(DisplayChangeListener));
852
    dcl->dpy_update = sdl_update;
853
    dcl->dpy_resize = sdl_resize;
854
    dcl->dpy_refresh = sdl_refresh;
855
    dcl->dpy_setdata = sdl_setdata;
856
    dcl->dpy_fill = sdl_fill;
857
    ds->mouse_set = sdl_mouse_warp;
858
    ds->cursor_define = sdl_mouse_define;
859
    register_displaychangelistener(ds, dcl);
860

    
861
    da = qemu_mallocz(sizeof(DisplayAllocator));
862
    da->create_displaysurface = sdl_create_displaysurface;
863
    da->resize_displaysurface = sdl_resize_displaysurface;
864
    da->free_displaysurface = sdl_free_displaysurface;
865
    if (register_displayallocator(ds, da) == da) {
866
        dpy_resize(ds);
867
    }
868

    
869
    mouse_mode_notifier.notify = sdl_mouse_mode_change;
870
    qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier);
871

    
872
    sdl_update_caption();
873
    SDL_EnableKeyRepeat(250, 50);
874
    gui_grab = 0;
875

    
876
    sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0);
877
    sdl_cursor_normal = SDL_GetCursor();
878

    
879
    atexit(sdl_cleanup);
880
    if (full_screen) {
881
        gui_fullscreen = 1;
882
        gui_fullscreen_initial_grab = 1;
883
        sdl_grab_start();
884
    }
885
}