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/*
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 * QEMU SDL display driver
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 *
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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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/* 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
#include "qemu-common.h"
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#include "console.h"
33
#include "sysemu.h"
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#include "x_keymap.h"
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#include "sdl_zoom.h"
36

    
37
static DisplayChangeListener *dcl;
38
static SDL_Surface *real_screen;
39
static SDL_Surface *guest_screen = NULL;
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static int gui_grab; /* if true, all keyboard/mouse events are grabbed */
41
static int last_vm_running;
42
static int gui_saved_grab;
43
static int gui_fullscreen;
44
static int gui_noframe;
45
static int gui_key_modifier_pressed;
46
static int gui_keysym;
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static int gui_fullscreen_initial_grab;
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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;
51
static SDL_Cursor *sdl_cursor_normal;
52
static SDL_Cursor *sdl_cursor_hidden;
53
static int absolute_enabled = 0;
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static int guest_cursor = 0;
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static int guest_x, guest_y;
56
static SDL_Cursor *guest_sprite = NULL;
57
static uint8_t allocator;
58
static SDL_PixelFormat host_format;
59
static int scaling_active = 0;
60
static Notifier mouse_mode_notifier;
61

    
62
static void sdl_update(DisplayState *ds, int x, int y, int w, int h)
63
{
64
    //    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;
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    rec.w = w;
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    rec.h = h;
70

    
71
    if (guest_screen) {
72
        if (!scaling_active) {
73
            SDL_BlitSurface(guest_screen, &rec, real_screen, &rec);
74
        } else {
75
            if (sdl_zoom_blit(guest_screen, real_screen, SMOOTHING_ON, &rec) < 0) {
76
                fprintf(stderr, "Zoom blit failed\n");
77
                exit(1);
78
            }
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        }
80
    } 
81
    SDL_UpdateRect(real_screen, rec.x, rec.y, rec.w, rec.h);
82
}
83

    
84
static void sdl_setdata(DisplayState *ds)
85
{
86
    if (guest_screen != NULL) SDL_FreeSurface(guest_screen);
87

    
88
    guest_screen = SDL_CreateRGBSurfaceFrom(ds_get_data(ds), ds_get_width(ds), ds_get_height(ds),
89
                                            ds_get_bits_per_pixel(ds), ds_get_linesize(ds),
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                                            ds->surface->pf.rmask, ds->surface->pf.gmask,
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                                            ds->surface->pf.bmask, ds->surface->pf.amask);
92
}
93

    
94
static void do_sdl_resize(int new_width, int new_height, int bpp)
95
{
96
    int flags;
97

    
98
    //    printf("resizing to %d %d\n", w, h);
99

    
100
    flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL|SDL_RESIZABLE;
101
    if (gui_fullscreen)
102
        flags |= SDL_FULLSCREEN;
103
    if (gui_noframe)
104
        flags |= SDL_NOFRAME;
105

    
106
    width = new_width;
107
    height = new_height;
108
    real_screen = SDL_SetVideoMode(width, height, bpp, flags);
109
    if (!real_screen) {
110
        fprintf(stderr, "Could not open SDL display (%dx%dx%d): %s\n", width, 
111
                height, bpp, SDL_GetError());
112
        exit(1);
113
    }
114
}
115

    
116
static void sdl_resize(DisplayState *ds)
117
{
118
    if  (!allocator) {
119
        if (!scaling_active)
120
            do_sdl_resize(ds_get_width(ds), ds_get_height(ds), 0);
121
        else if (real_screen->format->BitsPerPixel != ds_get_bits_per_pixel(ds))
122
            do_sdl_resize(real_screen->w, real_screen->h, ds_get_bits_per_pixel(ds));
123
        sdl_setdata(ds);
124
    } else {
125
        if (guest_screen != NULL) {
126
            SDL_FreeSurface(guest_screen);
127
            guest_screen = NULL;
128
        }
129
    }
130
}
131

    
132
static PixelFormat sdl_to_qemu_pixelformat(SDL_PixelFormat *sdl_pf)
133
{
134
    PixelFormat qemu_pf;
135

    
136
    memset(&qemu_pf, 0x00, sizeof(PixelFormat));
137

    
138
    qemu_pf.bits_per_pixel = sdl_pf->BitsPerPixel;
139
    qemu_pf.bytes_per_pixel = sdl_pf->BytesPerPixel;
140
    qemu_pf.depth = (qemu_pf.bits_per_pixel) == 32 ? 24 : (qemu_pf.bits_per_pixel);
141

    
142
    qemu_pf.rmask = sdl_pf->Rmask;
143
    qemu_pf.gmask = sdl_pf->Gmask;
144
    qemu_pf.bmask = sdl_pf->Bmask;
145
    qemu_pf.amask = sdl_pf->Amask;
146

    
147
    qemu_pf.rshift = sdl_pf->Rshift;
148
    qemu_pf.gshift = sdl_pf->Gshift;
149
    qemu_pf.bshift = sdl_pf->Bshift;
150
    qemu_pf.ashift = sdl_pf->Ashift;
151

    
152
    qemu_pf.rbits = 8 - sdl_pf->Rloss;
153
    qemu_pf.gbits = 8 - sdl_pf->Gloss;
154
    qemu_pf.bbits = 8 - sdl_pf->Bloss;
155
    qemu_pf.abits = 8 - sdl_pf->Aloss;
156

    
157
    qemu_pf.rmax = ((1 << qemu_pf.rbits) - 1);
158
    qemu_pf.gmax = ((1 << qemu_pf.gbits) - 1);
159
    qemu_pf.bmax = ((1 << qemu_pf.bbits) - 1);
160
    qemu_pf.amax = ((1 << qemu_pf.abits) - 1);
161

    
162
    return qemu_pf;
163
}
164

    
165
static DisplaySurface* sdl_create_displaysurface(int width, int height)
166
{
167
    DisplaySurface *surface = (DisplaySurface*) qemu_mallocz(sizeof(DisplaySurface));
168
    if (surface == NULL) {
169
        fprintf(stderr, "sdl_create_displaysurface: malloc failed\n");
170
        exit(1);
171
    }
172

    
173
    surface->width = width;
174
    surface->height = height;
175

    
176
    if (scaling_active) {
177
        int linesize;
178
        PixelFormat pf;
179
        if (host_format.BytesPerPixel != 2 && host_format.BytesPerPixel != 4) {
180
            linesize = width * 4;
181
            pf = qemu_default_pixelformat(32);
182
        } else {
183
            linesize = width * host_format.BytesPerPixel;
184
            pf = sdl_to_qemu_pixelformat(&host_format);
185
        }
186
        qemu_alloc_display(surface, width, height, linesize, pf, 0);
187
        return surface;
188
    }
189

    
190
    if (host_format.BitsPerPixel == 16)
191
        do_sdl_resize(width, height, 16);
192
    else
193
        do_sdl_resize(width, height, 32);
194

    
195
    surface->pf = sdl_to_qemu_pixelformat(real_screen->format);
196
    surface->linesize = real_screen->pitch;
197
    surface->data = real_screen->pixels;
198

    
199
#ifdef HOST_WORDS_BIGENDIAN
200
    surface->flags = QEMU_REALPIXELS_FLAG | QEMU_BIG_ENDIAN_FLAG;
201
#else
202
    surface->flags = QEMU_REALPIXELS_FLAG;
203
#endif
204
    allocator = 1;
205

    
206
    return surface;
207
}
208

    
209
static void sdl_free_displaysurface(DisplaySurface *surface)
210
{
211
    allocator = 0;
212
    if (surface == NULL)
213
        return;
214

    
215
    if (surface->flags & QEMU_ALLOCATED_FLAG)
216
        qemu_free(surface->data);
217
    qemu_free(surface);
218
}
219

    
220
static DisplaySurface* sdl_resize_displaysurface(DisplaySurface *surface, int width, int height)
221
{
222
    sdl_free_displaysurface(surface);
223
    return sdl_create_displaysurface(width, height);
224
}
225

    
226
/* generic keyboard conversion */
227

    
228
#include "sdl_keysym.h"
229

    
230
static kbd_layout_t *kbd_layout = NULL;
231

    
232
static uint8_t sdl_keyevent_to_keycode_generic(const SDL_KeyboardEvent *ev)
233
{
234
    int keysym;
235
    /* workaround for X11+SDL bug with AltGR */
236
    keysym = ev->keysym.sym;
237
    if (keysym == 0 && ev->keysym.scancode == 113)
238
        keysym = SDLK_MODE;
239
    /* For Japanese key '\' and '|' */
240
    if (keysym == 92 && ev->keysym.scancode == 133) {
241
        keysym = 0xa5;
242
    }
243
    return keysym2scancode(kbd_layout, keysym) & SCANCODE_KEYMASK;
244
}
245

    
246
/* specific keyboard conversions from scan codes */
247

    
248
#if defined(_WIN32)
249

    
250
static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
251
{
252
    return ev->keysym.scancode;
253
}
254

    
255
#else
256

    
257
#if defined(SDL_VIDEO_DRIVER_X11)
258
#include <X11/XKBlib.h>
259

    
260
static int check_for_evdev(void)
261
{
262
    SDL_SysWMinfo info;
263
    XkbDescPtr desc = NULL;
264
    int has_evdev = 0;
265
    char *keycodes = NULL;
266

    
267
    SDL_VERSION(&info.version);
268
    if (!SDL_GetWMInfo(&info)) {
269
        return 0;
270
    }
271
    desc = XkbGetKeyboard(info.info.x11.display,
272
                          XkbGBN_AllComponentsMask,
273
                          XkbUseCoreKbd);
274
    if (desc && desc->names) {
275
        keycodes = XGetAtomName(info.info.x11.display, desc->names->keycodes);
276
        if (keycodes == NULL) {
277
            fprintf(stderr, "could not lookup keycode name\n");
278
        } else if (strstart(keycodes, "evdev", NULL)) {
279
            has_evdev = 1;
280
        } else if (!strstart(keycodes, "xfree86", NULL)) {
281
            fprintf(stderr, "unknown keycodes `%s', please report to "
282
                    "qemu-devel@nongnu.org\n", keycodes);
283
        }
284
    }
285

    
286
    if (desc) {
287
        XkbFreeKeyboard(desc, XkbGBN_AllComponentsMask, True);
288
    }
289
    if (keycodes) {
290
        XFree(keycodes);
291
    }
292
    return has_evdev;
293
}
294
#else
295
static int check_for_evdev(void)
296
{
297
        return 0;
298
}
299
#endif
300

    
301
static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
302
{
303
    int keycode;
304
    static int has_evdev = -1;
305

    
306
    if (has_evdev == -1)
307
        has_evdev = check_for_evdev();
308

    
309
    keycode = ev->keysym.scancode;
310

    
311
    if (keycode < 9) {
312
        keycode = 0;
313
    } else if (keycode < 97) {
314
        keycode -= 8; /* just an offset */
315
    } else if (keycode < 158) {
316
        /* use conversion table */
317
        if (has_evdev)
318
            keycode = translate_evdev_keycode(keycode - 97);
319
        else
320
            keycode = translate_xfree86_keycode(keycode - 97);
321
    } else if (keycode == 208) { /* Hiragana_Katakana */
322
        keycode = 0x70;
323
    } else if (keycode == 211) { /* backslash */
324
        keycode = 0x73;
325
    } else {
326
        keycode = 0;
327
    }
328
    return keycode;
329
}
330

    
331
#endif
332

    
333
static void reset_keys(void)
334
{
335
    int i;
336
    for(i = 0; i < 256; i++) {
337
        if (modifiers_state[i]) {
338
            if (i & SCANCODE_GREY)
339
                kbd_put_keycode(SCANCODE_EMUL0);
340
            kbd_put_keycode(i | SCANCODE_UP);
341
            modifiers_state[i] = 0;
342
        }
343
    }
344
}
345

    
346
static void sdl_process_key(SDL_KeyboardEvent *ev)
347
{
348
    int keycode, v;
349

    
350
    if (ev->keysym.sym == SDLK_PAUSE) {
351
        /* specific case */
352
        v = 0;
353
        if (ev->type == SDL_KEYUP)
354
            v |= SCANCODE_UP;
355
        kbd_put_keycode(0xe1);
356
        kbd_put_keycode(0x1d | v);
357
        kbd_put_keycode(0x45 | v);
358
        return;
359
    }
360

    
361
    if (kbd_layout) {
362
        keycode = sdl_keyevent_to_keycode_generic(ev);
363
    } else {
364
        keycode = sdl_keyevent_to_keycode(ev);
365
    }
366

    
367
    switch(keycode) {
368
    case 0x00:
369
        /* sent when leaving window: reset the modifiers state */
370
        reset_keys();
371
        return;
372
    case 0x2a:                          /* Left Shift */
373
    case 0x36:                          /* Right Shift */
374
    case 0x1d:                          /* Left CTRL */
375
    case 0x9d:                          /* Right CTRL */
376
    case 0x38:                          /* Left ALT */
377
    case 0xb8:                         /* Right ALT */
378
        if (ev->type == SDL_KEYUP)
379
            modifiers_state[keycode] = 0;
380
        else
381
            modifiers_state[keycode] = 1;
382
        break;
383
#define QEMU_SDL_VERSION ((SDL_MAJOR_VERSION << 8) + SDL_MINOR_VERSION)
384
#if QEMU_SDL_VERSION < 0x102 || QEMU_SDL_VERSION == 0x102 && SDL_PATCHLEVEL < 14
385
        /* SDL versions before 1.2.14 don't support key up for caps/num lock. */
386
    case 0x45: /* num lock */
387
    case 0x3a: /* caps lock */
388
        /* SDL does not send the key up event, so we generate it */
389
        kbd_put_keycode(keycode);
390
        kbd_put_keycode(keycode | SCANCODE_UP);
391
        return;
392
#endif
393
    }
394

    
395
    /* now send the key code */
396
    if (keycode & SCANCODE_GREY)
397
        kbd_put_keycode(SCANCODE_EMUL0);
398
    if (ev->type == SDL_KEYUP)
399
        kbd_put_keycode(keycode | SCANCODE_UP);
400
    else
401
        kbd_put_keycode(keycode & SCANCODE_KEYCODEMASK);
402
}
403

    
404
static void sdl_update_caption(void)
405
{
406
    char win_title[1024];
407
    char icon_title[1024];
408
    const char *status = "";
409

    
410
    if (!vm_running)
411
        status = " [Stopped]";
412
    else if (gui_grab) {
413
        if (alt_grab)
414
            status = " - Press Ctrl-Alt-Shift to exit mouse grab";
415
        else if (ctrl_grab)
416
            status = " - Press Right-Ctrl to exit mouse grab";
417
        else
418
            status = " - Press Ctrl-Alt to exit mouse grab";
419
    }
420

    
421
    if (qemu_name) {
422
        snprintf(win_title, sizeof(win_title), "QEMU (%s)%s", qemu_name, status);
423
        snprintf(icon_title, sizeof(icon_title), "QEMU (%s)", qemu_name);
424
    } else {
425
        snprintf(win_title, sizeof(win_title), "QEMU%s", status);
426
        snprintf(icon_title, sizeof(icon_title), "QEMU");
427
    }
428

    
429
    SDL_WM_SetCaption(win_title, icon_title);
430
}
431

    
432
static void sdl_hide_cursor(void)
433
{
434
    if (!cursor_hide)
435
        return;
436

    
437
    if (kbd_mouse_is_absolute()) {
438
        SDL_ShowCursor(1);
439
        SDL_SetCursor(sdl_cursor_hidden);
440
    } else {
441
        SDL_ShowCursor(0);
442
    }
443
}
444

    
445
static void sdl_show_cursor(void)
446
{
447
    if (!cursor_hide)
448
        return;
449

    
450
    if (!kbd_mouse_is_absolute()) {
451
        SDL_ShowCursor(1);
452
        if (guest_cursor &&
453
                (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
454
            SDL_SetCursor(guest_sprite);
455
        else
456
            SDL_SetCursor(sdl_cursor_normal);
457
    }
458
}
459

    
460
static void sdl_grab_start(void)
461
{
462
    if (guest_cursor) {
463
        SDL_SetCursor(guest_sprite);
464
        if (!kbd_mouse_is_absolute() && !absolute_enabled)
465
            SDL_WarpMouse(guest_x, guest_y);
466
    } else
467
        sdl_hide_cursor();
468

    
469
    if (SDL_WM_GrabInput(SDL_GRAB_ON) == SDL_GRAB_ON) {
470
        gui_grab = 1;
471
        sdl_update_caption();
472
    } else
473
        sdl_show_cursor();
474
}
475

    
476
static void sdl_grab_end(void)
477
{
478
    SDL_WM_GrabInput(SDL_GRAB_OFF);
479
    gui_grab = 0;
480
    sdl_show_cursor();
481
    sdl_update_caption();
482
}
483

    
484
static void sdl_mouse_mode_change(Notifier *notify)
485
{
486
    if (kbd_mouse_is_absolute()) {
487
        if (!absolute_enabled) {
488
            sdl_hide_cursor();
489
            if (gui_grab) {
490
                sdl_grab_end();
491
            }
492
            absolute_enabled = 1;
493
        }
494
    } else if (absolute_enabled) {
495
        sdl_show_cursor();
496
        absolute_enabled = 0;
497
    }
498
}
499

    
500
static void sdl_send_mouse_event(int dx, int dy, int dz, int x, int y, int state)
501
{
502
    int buttons;
503
    buttons = 0;
504
    if (state & SDL_BUTTON(SDL_BUTTON_LEFT))
505
        buttons |= MOUSE_EVENT_LBUTTON;
506
    if (state & SDL_BUTTON(SDL_BUTTON_RIGHT))
507
        buttons |= MOUSE_EVENT_RBUTTON;
508
    if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE))
509
        buttons |= MOUSE_EVENT_MBUTTON;
510

    
511
    if (kbd_mouse_is_absolute()) {
512
       dx = x * 0x7FFF / (width - 1);
513
       dy = y * 0x7FFF / (height - 1);
514
    } else if (guest_cursor) {
515
        x -= guest_x;
516
        y -= guest_y;
517
        guest_x += x;
518
        guest_y += y;
519
        dx = x;
520
        dy = y;
521
    }
522

    
523
    kbd_mouse_event(dx, dy, dz, buttons);
524
}
525

    
526
static void toggle_full_screen(DisplayState *ds)
527
{
528
    gui_fullscreen = !gui_fullscreen;
529
    do_sdl_resize(real_screen->w, real_screen->h, real_screen->format->BitsPerPixel);
530
    if (gui_fullscreen) {
531
        scaling_active = 0;
532
        gui_saved_grab = gui_grab;
533
        sdl_grab_start();
534
    } else {
535
        if (!gui_saved_grab)
536
            sdl_grab_end();
537
    }
538
    vga_hw_invalidate();
539
    vga_hw_update();
540
}
541

    
542
static void sdl_refresh(DisplayState *ds)
543
{
544
    SDL_Event ev1, *ev = &ev1;
545
    int mod_state;
546
    int buttonstate = SDL_GetMouseState(NULL, NULL);
547

    
548
    if (last_vm_running != vm_running) {
549
        last_vm_running = vm_running;
550
        sdl_update_caption();
551
    }
552

    
553
    vga_hw_update();
554
    SDL_EnableUNICODE(!is_graphic_console());
555

    
556
    while (SDL_PollEvent(ev)) {
557
        switch (ev->type) {
558
        case SDL_VIDEOEXPOSE:
559
            sdl_update(ds, 0, 0, real_screen->w, real_screen->h);
560
            break;
561
        case SDL_KEYDOWN:
562
        case SDL_KEYUP:
563
            if (ev->type == SDL_KEYDOWN) {
564
                if (alt_grab) {
565
                    mod_state = (SDL_GetModState() & (gui_grab_code | KMOD_LSHIFT)) ==
566
                                (gui_grab_code | KMOD_LSHIFT);
567
                } else if (ctrl_grab) {
568
                    mod_state = (SDL_GetModState() & KMOD_RCTRL) == KMOD_RCTRL;
569
                } else {
570
                    mod_state = (SDL_GetModState() & gui_grab_code) ==
571
                                gui_grab_code;
572
                }
573
                gui_key_modifier_pressed = mod_state;
574
                if (gui_key_modifier_pressed) {
575
                    int keycode;
576
                    keycode = sdl_keyevent_to_keycode(&ev->key);
577
                    switch(keycode) {
578
                    case 0x21: /* 'f' key on US keyboard */
579
                        toggle_full_screen(ds);
580
                        gui_keysym = 1;
581
                        break;
582
                    case 0x16: /* 'u' key on US keyboard */
583
                        scaling_active = 0;
584
                        sdl_resize(ds);
585
                        vga_hw_invalidate();
586
                        vga_hw_update();
587
                        break;
588
                    case 0x02 ... 0x0a: /* '1' to '9' keys */
589
                        /* Reset the modifiers sent to the current console */
590
                        reset_keys();
591
                        console_select(keycode - 0x02);
592
                        if (!is_graphic_console()) {
593
                            /* display grab if going to a text console */
594
                            if (gui_grab)
595
                                sdl_grab_end();
596
                        }
597
                        gui_keysym = 1;
598
                        break;
599
                    default:
600
                        break;
601
                    }
602
                } else if (!is_graphic_console()) {
603
                    int keysym;
604
                    keysym = 0;
605
                    if (ev->key.keysym.mod & (KMOD_LCTRL | KMOD_RCTRL)) {
606
                        switch(ev->key.keysym.sym) {
607
                        case SDLK_UP: keysym = QEMU_KEY_CTRL_UP; break;
608
                        case SDLK_DOWN: keysym = QEMU_KEY_CTRL_DOWN; break;
609
                        case SDLK_LEFT: keysym = QEMU_KEY_CTRL_LEFT; break;
610
                        case SDLK_RIGHT: keysym = QEMU_KEY_CTRL_RIGHT; break;
611
                        case SDLK_HOME: keysym = QEMU_KEY_CTRL_HOME; break;
612
                        case SDLK_END: keysym = QEMU_KEY_CTRL_END; break;
613
                        case SDLK_PAGEUP: keysym = QEMU_KEY_CTRL_PAGEUP; break;
614
                        case SDLK_PAGEDOWN: keysym = QEMU_KEY_CTRL_PAGEDOWN; break;
615
                        default: break;
616
                        }
617
                    } else {
618
                        switch(ev->key.keysym.sym) {
619
                        case SDLK_UP: keysym = QEMU_KEY_UP; break;
620
                        case SDLK_DOWN: keysym = QEMU_KEY_DOWN; break;
621
                        case SDLK_LEFT: keysym = QEMU_KEY_LEFT; break;
622
                        case SDLK_RIGHT: keysym = QEMU_KEY_RIGHT; break;
623
                        case SDLK_HOME: keysym = QEMU_KEY_HOME; break;
624
                        case SDLK_END: keysym = QEMU_KEY_END; break;
625
                        case SDLK_PAGEUP: keysym = QEMU_KEY_PAGEUP; break;
626
                        case SDLK_PAGEDOWN: keysym = QEMU_KEY_PAGEDOWN; break;
627
                        case SDLK_BACKSPACE: keysym = QEMU_KEY_BACKSPACE; break;
628
                        case SDLK_DELETE: keysym = QEMU_KEY_DELETE; break;
629
                        default: break;
630
                        }
631
                    }
632
                    if (keysym) {
633
                        kbd_put_keysym(keysym);
634
                    } else if (ev->key.keysym.unicode != 0) {
635
                        kbd_put_keysym(ev->key.keysym.unicode);
636
                    }
637
                }
638
            } else if (ev->type == SDL_KEYUP) {
639
                if (!alt_grab) {
640
                    mod_state = (ev->key.keysym.mod & gui_grab_code);
641
                } else {
642
                    mod_state = (ev->key.keysym.mod &
643
                                 (gui_grab_code | KMOD_LSHIFT));
644
                }
645
                if (!mod_state) {
646
                    if (gui_key_modifier_pressed) {
647
                        gui_key_modifier_pressed = 0;
648
                        if (gui_keysym == 0) {
649
                            /* exit/enter grab if pressing Ctrl-Alt */
650
                            if (!gui_grab) {
651
                                /* if the application is not active,
652
                                   do not try to enter grab state. It
653
                                   prevents
654
                                   'SDL_WM_GrabInput(SDL_GRAB_ON)'
655
                                   from blocking all the application
656
                                   (SDL bug). */
657
                                if (SDL_GetAppState() & SDL_APPACTIVE)
658
                                    sdl_grab_start();
659
                            } else {
660
                                sdl_grab_end();
661
                            }
662
                            /* SDL does not send back all the
663
                               modifiers key, so we must correct it */
664
                            reset_keys();
665
                            break;
666
                        }
667
                        gui_keysym = 0;
668
                    }
669
                }
670
            }
671
            if (is_graphic_console() && !gui_keysym)
672
                sdl_process_key(&ev->key);
673
            break;
674
        case SDL_QUIT:
675
            if (!no_quit)
676
                qemu_system_shutdown_request();
677
            break;
678
        case SDL_MOUSEMOTION:
679
            if (gui_grab || kbd_mouse_is_absolute() ||
680
                absolute_enabled) {
681
                sdl_send_mouse_event(ev->motion.xrel, ev->motion.yrel, 0,
682
                       ev->motion.x, ev->motion.y, ev->motion.state);
683
            }
684
            break;
685
        case SDL_MOUSEBUTTONDOWN:
686
        case SDL_MOUSEBUTTONUP:
687
            {
688
                SDL_MouseButtonEvent *bev = &ev->button;
689
                if (!gui_grab && !kbd_mouse_is_absolute()) {
690
                    if (ev->type == SDL_MOUSEBUTTONDOWN &&
691
                        (bev->button == SDL_BUTTON_LEFT)) {
692
                        /* start grabbing all events */
693
                        sdl_grab_start();
694
                    }
695
                } else {
696
                    int dz;
697
                    dz = 0;
698
                    if (ev->type == SDL_MOUSEBUTTONDOWN) {
699
                        buttonstate |= SDL_BUTTON(bev->button);
700
                    } else {
701
                        buttonstate &= ~SDL_BUTTON(bev->button);
702
                    }
703
#ifdef SDL_BUTTON_WHEELUP
704
                    if (bev->button == SDL_BUTTON_WHEELUP && ev->type == SDL_MOUSEBUTTONDOWN) {
705
                        dz = -1;
706
                    } else if (bev->button == SDL_BUTTON_WHEELDOWN && ev->type == SDL_MOUSEBUTTONDOWN) {
707
                        dz = 1;
708
                    }
709
#endif
710
                    sdl_send_mouse_event(0, 0, dz, bev->x, bev->y, buttonstate);
711
                }
712
            }
713
            break;
714
        case SDL_ACTIVEEVENT:
715
            if (gui_grab && ev->active.state == SDL_APPINPUTFOCUS &&
716
                !ev->active.gain && !gui_fullscreen_initial_grab) {
717
                sdl_grab_end();
718
            }
719
            if (ev->active.state & SDL_APPACTIVE) {
720
                if (ev->active.gain) {
721
                    /* Back to default interval */
722
                    dcl->gui_timer_interval = 0;
723
                    dcl->idle = 0;
724
                } else {
725
                    /* Sleeping interval */
726
                    dcl->gui_timer_interval = 500;
727
                    dcl->idle = 1;
728
                }
729
            }
730
            break;
731
        case SDL_VIDEORESIZE:
732
        {
733
            SDL_ResizeEvent *rev = &ev->resize;
734
            int bpp = real_screen->format->BitsPerPixel;
735
            if (bpp != 16 && bpp != 32)
736
                bpp = 32;
737
            do_sdl_resize(rev->w, rev->h, bpp);
738
            scaling_active = 1;
739
            if (!is_buffer_shared(ds->surface)) {
740
                ds->surface = qemu_resize_displaysurface(ds, ds_get_width(ds), ds_get_height(ds));
741
                dpy_resize(ds);
742
            }
743
            vga_hw_invalidate();
744
            vga_hw_update();
745
            break;
746
        }
747
        default:
748
            break;
749
        }
750
    }
751
}
752

    
753
static void sdl_fill(DisplayState *ds, int x, int y, int w, int h, uint32_t c)
754
{
755
    SDL_Rect dst = { x, y, w, h };
756
    SDL_FillRect(real_screen, &dst, c);
757
}
758

    
759
static void sdl_mouse_warp(int x, int y, int on)
760
{
761
    if (on) {
762
        if (!guest_cursor)
763
            sdl_show_cursor();
764
        if (gui_grab || kbd_mouse_is_absolute() || absolute_enabled) {
765
            SDL_SetCursor(guest_sprite);
766
            if (!kbd_mouse_is_absolute() && !absolute_enabled)
767
                SDL_WarpMouse(x, y);
768
        }
769
    } else if (gui_grab)
770
        sdl_hide_cursor();
771
    guest_cursor = on;
772
    guest_x = x, guest_y = y;
773
}
774

    
775
static void sdl_mouse_define(QEMUCursor *c)
776
{
777
    uint8_t *image, *mask;
778
    int bpl;
779

    
780
    if (guest_sprite)
781
        SDL_FreeCursor(guest_sprite);
782

    
783
    bpl = cursor_get_mono_bpl(c);
784
    image = qemu_mallocz(bpl * c->height);
785
    mask  = qemu_mallocz(bpl * c->height);
786
    cursor_get_mono_image(c, 0x000000, image);
787
    cursor_get_mono_mask(c, 0, mask);
788
    guest_sprite = SDL_CreateCursor(image, mask, c->width, c->height,
789
                                    c->hot_x, c->hot_y);
790
    qemu_free(image);
791
    qemu_free(mask);
792

    
793
    if (guest_cursor &&
794
            (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
795
        SDL_SetCursor(guest_sprite);
796
}
797

    
798
static void sdl_cleanup(void)
799
{
800
    if (guest_sprite)
801
        SDL_FreeCursor(guest_sprite);
802
    SDL_QuitSubSystem(SDL_INIT_VIDEO);
803
}
804

    
805
void sdl_display_init(DisplayState *ds, int full_screen, int no_frame)
806
{
807
    int flags;
808
    uint8_t data = 0;
809
    DisplayAllocator *da;
810
    const SDL_VideoInfo *vi;
811
    char *filename;
812

    
813
#if defined(__APPLE__)
814
    /* always use generic keymaps */
815
    if (!keyboard_layout)
816
        keyboard_layout = "en-us";
817
#endif
818
    if(keyboard_layout) {
819
        kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout);
820
        if (!kbd_layout)
821
            exit(1);
822
    }
823

    
824
    if (no_frame)
825
        gui_noframe = 1;
826

    
827
    if (!full_screen) {
828
        setenv("SDL_VIDEO_ALLOW_SCREENSAVER", "1", 0);
829
    }
830
#ifdef __linux__
831
    /* on Linux, SDL may use fbcon|directfb|svgalib when run without
832
     * accessible $DISPLAY to open X11 window.  This is often the case
833
     * when qemu is run using sudo.  But in this case, and when actually
834
     * run in X11 environment, SDL fights with X11 for the video card,
835
     * making current display unavailable, often until reboot.
836
     * So make x11 the default SDL video driver if this variable is unset.
837
     * This is a bit hackish but saves us from bigger problem.
838
     * Maybe it's a good idea to fix this in SDL instead.
839
     */
840
    setenv("SDL_VIDEODRIVER", "x11", 0);
841
#endif
842

    
843
    /* Enable normal up/down events for Caps-Lock and Num-Lock keys.
844
     * This requires SDL >= 1.2.14. */
845
    setenv("SDL_DISABLE_LOCK_KEYS", "1", 1);
846

    
847
    flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
848
    if (SDL_Init (flags)) {
849
        fprintf(stderr, "Could not initialize SDL(%s) - exiting\n",
850
                SDL_GetError());
851
        exit(1);
852
    }
853
    vi = SDL_GetVideoInfo();
854
    host_format = *(vi->vfmt);
855

    
856
    /* Load a 32x32x4 image. White pixels are transparent. */
857
    filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, "qemu-icon.bmp");
858
    if (filename) {
859
        SDL_Surface *image = SDL_LoadBMP(filename);
860
        if (image) {
861
            uint32_t colorkey = SDL_MapRGB(image->format, 255, 255, 255);
862
            SDL_SetColorKey(image, SDL_SRCCOLORKEY, colorkey);
863
            SDL_WM_SetIcon(image, NULL);
864
        }
865
        qemu_free(filename);
866
    }
867

    
868
    dcl = qemu_mallocz(sizeof(DisplayChangeListener));
869
    dcl->dpy_update = sdl_update;
870
    dcl->dpy_resize = sdl_resize;
871
    dcl->dpy_refresh = sdl_refresh;
872
    dcl->dpy_setdata = sdl_setdata;
873
    dcl->dpy_fill = sdl_fill;
874
    ds->mouse_set = sdl_mouse_warp;
875
    ds->cursor_define = sdl_mouse_define;
876
    register_displaychangelistener(ds, dcl);
877

    
878
    da = qemu_mallocz(sizeof(DisplayAllocator));
879
    da->create_displaysurface = sdl_create_displaysurface;
880
    da->resize_displaysurface = sdl_resize_displaysurface;
881
    da->free_displaysurface = sdl_free_displaysurface;
882
    if (register_displayallocator(ds, da) == da) {
883
        dpy_resize(ds);
884
    }
885

    
886
    mouse_mode_notifier.notify = sdl_mouse_mode_change;
887
    qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier);
888

    
889
    sdl_update_caption();
890
    SDL_EnableKeyRepeat(250, 50);
891
    gui_grab = 0;
892

    
893
    sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0);
894
    sdl_cursor_normal = SDL_GetCursor();
895

    
896
    atexit(sdl_cleanup);
897
    if (full_screen) {
898
        gui_fullscreen = 1;
899
        gui_fullscreen_initial_grab = 1;
900
        sdl_grab_start();
901
    }
902
}