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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
20
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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 * THE SOFTWARE.
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 */
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/* Avoid compiler warning because macro is redefined in SDL_syswm.h. */
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#undef WIN32_LEAN_AND_MEAN
27

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

    
31
#include "qemu-common.h"
32
#include "console.h"
33
#include "sysemu.h"
34
#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;
40
static int gui_grab; /* if true, all keyboard/mouse events are grabbed */
41
static int last_vm_running;
42
static bool gui_saved_scaling;
43
static int gui_saved_width;
44
static int gui_saved_height;
45
static int gui_saved_grab;
46
static int gui_fullscreen;
47
static int gui_noframe;
48
static int gui_key_modifier_pressed;
49
static int gui_keysym;
50
static int gui_grab_code = KMOD_LALT | KMOD_LCTRL;
51
static uint8_t modifiers_state[256];
52
static SDL_Cursor *sdl_cursor_normal;
53
static SDL_Cursor *sdl_cursor_hidden;
54
static int absolute_enabled = 0;
55
static int guest_cursor = 0;
56
static int guest_x, guest_y;
57
static SDL_Cursor *guest_sprite = NULL;
58
static uint8_t allocator;
59
static SDL_PixelFormat host_format;
60
static int scaling_active = 0;
61
static Notifier mouse_mode_notifier;
62

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

    
72
    if (guest_screen) {
73
        if (!scaling_active) {
74
            SDL_BlitSurface(guest_screen, &rec, real_screen, &rec);
75
        } else {
76
            if (sdl_zoom_blit(guest_screen, real_screen, SMOOTHING_ON, &rec) < 0) {
77
                fprintf(stderr, "Zoom blit failed\n");
78
                exit(1);
79
            }
80
        }
81
    } 
82
    SDL_UpdateRect(real_screen, rec.x, rec.y, rec.w, rec.h);
83
}
84

    
85
static void sdl_setdata(DisplayState *ds)
86
{
87
    if (guest_screen != NULL) SDL_FreeSurface(guest_screen);
88

    
89
    guest_screen = SDL_CreateRGBSurfaceFrom(ds_get_data(ds), ds_get_width(ds), ds_get_height(ds),
90
                                            ds_get_bits_per_pixel(ds), ds_get_linesize(ds),
91
                                            ds->surface->pf.rmask, ds->surface->pf.gmask,
92
                                            ds->surface->pf.bmask, ds->surface->pf.amask);
93
}
94

    
95
static void do_sdl_resize(int width, int height, int bpp)
96
{
97
    int flags;
98

    
99
    //    printf("resizing to %d %d\n", w, h);
100

    
101
    flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
102
    if (gui_fullscreen) {
103
        flags |= SDL_FULLSCREEN;
104
    } else {
105
        flags |= SDL_RESIZABLE;
106
    }
107
    if (gui_noframe)
108
        flags |= SDL_NOFRAME;
109

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

    
118
static void sdl_resize(DisplayState *ds)
119
{
120
    if  (!allocator) {
121
        if (!scaling_active)
122
            do_sdl_resize(ds_get_width(ds), ds_get_height(ds), 0);
123
        else if (real_screen->format->BitsPerPixel != ds_get_bits_per_pixel(ds))
124
            do_sdl_resize(real_screen->w, real_screen->h, ds_get_bits_per_pixel(ds));
125
        sdl_setdata(ds);
126
    } else {
127
        if (guest_screen != NULL) {
128
            SDL_FreeSurface(guest_screen);
129
            guest_screen = NULL;
130
        }
131
    }
132
}
133

    
134
static PixelFormat sdl_to_qemu_pixelformat(SDL_PixelFormat *sdl_pf)
135
{
136
    PixelFormat qemu_pf;
137

    
138
    memset(&qemu_pf, 0x00, sizeof(PixelFormat));
139

    
140
    qemu_pf.bits_per_pixel = sdl_pf->BitsPerPixel;
141
    qemu_pf.bytes_per_pixel = sdl_pf->BytesPerPixel;
142
    qemu_pf.depth = (qemu_pf.bits_per_pixel) == 32 ? 24 : (qemu_pf.bits_per_pixel);
143

    
144
    qemu_pf.rmask = sdl_pf->Rmask;
145
    qemu_pf.gmask = sdl_pf->Gmask;
146
    qemu_pf.bmask = sdl_pf->Bmask;
147
    qemu_pf.amask = sdl_pf->Amask;
148

    
149
    qemu_pf.rshift = sdl_pf->Rshift;
150
    qemu_pf.gshift = sdl_pf->Gshift;
151
    qemu_pf.bshift = sdl_pf->Bshift;
152
    qemu_pf.ashift = sdl_pf->Ashift;
153

    
154
    qemu_pf.rbits = 8 - sdl_pf->Rloss;
155
    qemu_pf.gbits = 8 - sdl_pf->Gloss;
156
    qemu_pf.bbits = 8 - sdl_pf->Bloss;
157
    qemu_pf.abits = 8 - sdl_pf->Aloss;
158

    
159
    qemu_pf.rmax = ((1 << qemu_pf.rbits) - 1);
160
    qemu_pf.gmax = ((1 << qemu_pf.gbits) - 1);
161
    qemu_pf.bmax = ((1 << qemu_pf.bbits) - 1);
162
    qemu_pf.amax = ((1 << qemu_pf.abits) - 1);
163

    
164
    return qemu_pf;
165
}
166

    
167
static DisplaySurface* sdl_create_displaysurface(int width, int height)
168
{
169
    DisplaySurface *surface = (DisplaySurface*) g_malloc0(sizeof(DisplaySurface));
170
    if (surface == NULL) {
171
        fprintf(stderr, "sdl_create_displaysurface: malloc failed\n");
172
        exit(1);
173
    }
174

    
175
    surface->width = width;
176
    surface->height = height;
177

    
178
    if (scaling_active) {
179
        int linesize;
180
        PixelFormat pf;
181
        if (host_format.BytesPerPixel != 2 && host_format.BytesPerPixel != 4) {
182
            linesize = width * 4;
183
            pf = qemu_default_pixelformat(32);
184
        } else {
185
            linesize = width * host_format.BytesPerPixel;
186
            pf = sdl_to_qemu_pixelformat(&host_format);
187
        }
188
        qemu_alloc_display(surface, width, height, linesize, pf, 0);
189
        return surface;
190
    }
191

    
192
    if (host_format.BitsPerPixel == 16)
193
        do_sdl_resize(width, height, 16);
194
    else
195
        do_sdl_resize(width, height, 32);
196

    
197
    surface->pf = sdl_to_qemu_pixelformat(real_screen->format);
198
    surface->linesize = real_screen->pitch;
199
    surface->data = real_screen->pixels;
200

    
201
#ifdef HOST_WORDS_BIGENDIAN
202
    surface->flags = QEMU_REALPIXELS_FLAG | QEMU_BIG_ENDIAN_FLAG;
203
#else
204
    surface->flags = QEMU_REALPIXELS_FLAG;
205
#endif
206
    allocator = 1;
207

    
208
    return surface;
209
}
210

    
211
static void sdl_free_displaysurface(DisplaySurface *surface)
212
{
213
    allocator = 0;
214
    if (surface == NULL)
215
        return;
216

    
217
    if (surface->flags & QEMU_ALLOCATED_FLAG)
218
        g_free(surface->data);
219
    g_free(surface);
220
}
221

    
222
static DisplaySurface* sdl_resize_displaysurface(DisplaySurface *surface, int width, int height)
223
{
224
    sdl_free_displaysurface(surface);
225
    return sdl_create_displaysurface(width, height);
226
}
227

    
228
/* generic keyboard conversion */
229

    
230
#include "sdl_keysym.h"
231

    
232
static kbd_layout_t *kbd_layout = NULL;
233

    
234
static uint8_t sdl_keyevent_to_keycode_generic(const SDL_KeyboardEvent *ev)
235
{
236
    int keysym;
237
    /* workaround for X11+SDL bug with AltGR */
238
    keysym = ev->keysym.sym;
239
    if (keysym == 0 && ev->keysym.scancode == 113)
240
        keysym = SDLK_MODE;
241
    /* For Japanese key '\' and '|' */
242
    if (keysym == 92 && ev->keysym.scancode == 133) {
243
        keysym = 0xa5;
244
    }
245
    return keysym2scancode(kbd_layout, keysym) & SCANCODE_KEYMASK;
246
}
247

    
248
/* specific keyboard conversions from scan codes */
249

    
250
#if defined(_WIN32)
251

    
252
static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
253
{
254
    return ev->keysym.scancode;
255
}
256

    
257
#else
258

    
259
#if defined(SDL_VIDEO_DRIVER_X11)
260
#include <X11/XKBlib.h>
261

    
262
static int check_for_evdev(void)
263
{
264
    SDL_SysWMinfo info;
265
    XkbDescPtr desc = NULL;
266
    int has_evdev = 0;
267
    char *keycodes = NULL;
268

    
269
    SDL_VERSION(&info.version);
270
    if (!SDL_GetWMInfo(&info)) {
271
        return 0;
272
    }
273
    desc = XkbGetKeyboard(info.info.x11.display,
274
                          XkbGBN_AllComponentsMask,
275
                          XkbUseCoreKbd);
276
    if (desc && desc->names) {
277
        keycodes = XGetAtomName(info.info.x11.display, desc->names->keycodes);
278
        if (keycodes == NULL) {
279
            fprintf(stderr, "could not lookup keycode name\n");
280
        } else if (strstart(keycodes, "evdev", NULL)) {
281
            has_evdev = 1;
282
        } else if (!strstart(keycodes, "xfree86", NULL)) {
283
            fprintf(stderr, "unknown keycodes `%s', please report to "
284
                    "qemu-devel@nongnu.org\n", keycodes);
285
        }
286
    }
287

    
288
    if (desc) {
289
        XkbFreeKeyboard(desc, XkbGBN_AllComponentsMask, True);
290
    }
291
    if (keycodes) {
292
        XFree(keycodes);
293
    }
294
    return has_evdev;
295
}
296
#else
297
static int check_for_evdev(void)
298
{
299
        return 0;
300
}
301
#endif
302

    
303
static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
304
{
305
    int keycode;
306
    static int has_evdev = -1;
307

    
308
    if (has_evdev == -1)
309
        has_evdev = check_for_evdev();
310

    
311
    keycode = ev->keysym.scancode;
312

    
313
    if (keycode < 9) {
314
        keycode = 0;
315
    } else if (keycode < 97) {
316
        keycode -= 8; /* just an offset */
317
    } else if (keycode < 158) {
318
        /* use conversion table */
319
        if (has_evdev)
320
            keycode = translate_evdev_keycode(keycode - 97);
321
        else
322
            keycode = translate_xfree86_keycode(keycode - 97);
323
    } else if (keycode == 208) { /* Hiragana_Katakana */
324
        keycode = 0x70;
325
    } else if (keycode == 211) { /* backslash */
326
        keycode = 0x73;
327
    } else {
328
        keycode = 0;
329
    }
330
    return keycode;
331
}
332

    
333
#endif
334

    
335
static void reset_keys(void)
336
{
337
    int i;
338
    for(i = 0; i < 256; i++) {
339
        if (modifiers_state[i]) {
340
            if (i & SCANCODE_GREY)
341
                kbd_put_keycode(SCANCODE_EMUL0);
342
            kbd_put_keycode(i | SCANCODE_UP);
343
            modifiers_state[i] = 0;
344
        }
345
    }
346
}
347

    
348
static void sdl_process_key(SDL_KeyboardEvent *ev)
349
{
350
    int keycode, v;
351

    
352
    if (ev->keysym.sym == SDLK_PAUSE) {
353
        /* specific case */
354
        v = 0;
355
        if (ev->type == SDL_KEYUP)
356
            v |= SCANCODE_UP;
357
        kbd_put_keycode(0xe1);
358
        kbd_put_keycode(0x1d | v);
359
        kbd_put_keycode(0x45 | v);
360
        return;
361
    }
362

    
363
    if (kbd_layout) {
364
        keycode = sdl_keyevent_to_keycode_generic(ev);
365
    } else {
366
        keycode = sdl_keyevent_to_keycode(ev);
367
    }
368

    
369
    switch(keycode) {
370
    case 0x00:
371
        /* sent when leaving window: reset the modifiers state */
372
        reset_keys();
373
        return;
374
    case 0x2a:                          /* Left Shift */
375
    case 0x36:                          /* Right Shift */
376
    case 0x1d:                          /* Left CTRL */
377
    case 0x9d:                          /* Right CTRL */
378
    case 0x38:                          /* Left ALT */
379
    case 0xb8:                         /* Right ALT */
380
        if (ev->type == SDL_KEYUP)
381
            modifiers_state[keycode] = 0;
382
        else
383
            modifiers_state[keycode] = 1;
384
        break;
385
#define QEMU_SDL_VERSION ((SDL_MAJOR_VERSION << 8) + SDL_MINOR_VERSION)
386
#if QEMU_SDL_VERSION < 0x102 || QEMU_SDL_VERSION == 0x102 && SDL_PATCHLEVEL < 14
387
        /* SDL versions before 1.2.14 don't support key up for caps/num lock. */
388
    case 0x45: /* num lock */
389
    case 0x3a: /* caps lock */
390
        /* SDL does not send the key up event, so we generate it */
391
        kbd_put_keycode(keycode);
392
        kbd_put_keycode(keycode | SCANCODE_UP);
393
        return;
394
#endif
395
    }
396

    
397
    /* now send the key code */
398
    if (keycode & SCANCODE_GREY)
399
        kbd_put_keycode(SCANCODE_EMUL0);
400
    if (ev->type == SDL_KEYUP)
401
        kbd_put_keycode(keycode | SCANCODE_UP);
402
    else
403
        kbd_put_keycode(keycode & SCANCODE_KEYCODEMASK);
404
}
405

    
406
static void sdl_update_caption(void)
407
{
408
    char win_title[1024];
409
    char icon_title[1024];
410
    const char *status = "";
411

    
412
    if (!vm_running)
413
        status = " [Stopped]";
414
    else if (gui_grab) {
415
        if (alt_grab)
416
            status = " - Press Ctrl-Alt-Shift to exit mouse grab";
417
        else if (ctrl_grab)
418
            status = " - Press Right-Ctrl to exit mouse grab";
419
        else
420
            status = " - Press Ctrl-Alt to exit mouse grab";
421
    }
422

    
423
    if (qemu_name) {
424
        snprintf(win_title, sizeof(win_title), "QEMU (%s)%s", qemu_name, status);
425
        snprintf(icon_title, sizeof(icon_title), "QEMU (%s)", qemu_name);
426
    } else {
427
        snprintf(win_title, sizeof(win_title), "QEMU%s", status);
428
        snprintf(icon_title, sizeof(icon_title), "QEMU");
429
    }
430

    
431
    SDL_WM_SetCaption(win_title, icon_title);
432
}
433

    
434
static void sdl_hide_cursor(void)
435
{
436
    if (!cursor_hide)
437
        return;
438

    
439
    if (kbd_mouse_is_absolute()) {
440
        SDL_ShowCursor(1);
441
        SDL_SetCursor(sdl_cursor_hidden);
442
    } else {
443
        SDL_ShowCursor(0);
444
    }
445
}
446

    
447
static void sdl_show_cursor(void)
448
{
449
    if (!cursor_hide)
450
        return;
451

    
452
    if (!kbd_mouse_is_absolute() || !is_graphic_console()) {
453
        SDL_ShowCursor(1);
454
        if (guest_cursor &&
455
                (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
456
            SDL_SetCursor(guest_sprite);
457
        else
458
            SDL_SetCursor(sdl_cursor_normal);
459
    }
460
}
461

    
462
static void sdl_grab_start(void)
463
{
464
    if (guest_cursor) {
465
        SDL_SetCursor(guest_sprite);
466
        if (!kbd_mouse_is_absolute() && !absolute_enabled)
467
            SDL_WarpMouse(guest_x, guest_y);
468
    } else
469
        sdl_hide_cursor();
470

    
471
    if (SDL_WM_GrabInput(SDL_GRAB_ON) == SDL_GRAB_ON) {
472
        gui_grab = 1;
473
        sdl_update_caption();
474
    } else
475
        sdl_show_cursor();
476
}
477

    
478
static void sdl_grab_end(void)
479
{
480
    SDL_WM_GrabInput(SDL_GRAB_OFF);
481
    gui_grab = 0;
482
    sdl_show_cursor();
483
    sdl_update_caption();
484
}
485

    
486
static void sdl_mouse_mode_change(Notifier *notify, void *data)
487
{
488
    if (kbd_mouse_is_absolute()) {
489
        if (!absolute_enabled) {
490
            sdl_grab_start();
491
            absolute_enabled = 1;
492
        }
493
    } else if (absolute_enabled) {
494
        sdl_grab_end();
495
        absolute_enabled = 0;
496
    }
497
}
498

    
499
static void sdl_send_mouse_event(int dx, int dy, int dz, int x, int y, int state)
500
{
501
    int buttons = 0;
502

    
503
    if (state & SDL_BUTTON(SDL_BUTTON_LEFT)) {
504
        buttons |= MOUSE_EVENT_LBUTTON;
505
    }
506
    if (state & SDL_BUTTON(SDL_BUTTON_RIGHT)) {
507
        buttons |= MOUSE_EVENT_RBUTTON;
508
    }
509
    if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE)) {
510
        buttons |= MOUSE_EVENT_MBUTTON;
511
    }
512

    
513
    if (kbd_mouse_is_absolute()) {
514
        dx = x * 0x7FFF / (real_screen->w - 1);
515
        dy = y * 0x7FFF / (real_screen->h - 1);
516
    } else if (guest_cursor) {
517
        x -= guest_x;
518
        y -= guest_y;
519
        guest_x += x;
520
        guest_y += y;
521
        dx = x;
522
        dy = y;
523
    }
524

    
525
    kbd_mouse_event(dx, dy, dz, buttons);
526
}
527

    
528
static void sdl_scale(DisplayState *ds, int width, int height)
529
{
530
    int bpp = real_screen->format->BitsPerPixel;
531

    
532
    if (bpp != 16 && bpp != 32) {
533
        bpp = 32;
534
    }
535
    do_sdl_resize(width, height, bpp);
536
    scaling_active = 1;
537
    if (!is_buffer_shared(ds->surface)) {
538
        ds->surface = qemu_resize_displaysurface(ds, ds_get_width(ds),
539
                                                 ds_get_height(ds));
540
        dpy_resize(ds);
541
    }
542
}
543

    
544
static void toggle_full_screen(DisplayState *ds)
545
{
546
    gui_fullscreen = !gui_fullscreen;
547
    if (gui_fullscreen) {
548
        gui_saved_width = real_screen->w;
549
        gui_saved_height = real_screen->h;
550
        gui_saved_scaling = scaling_active;
551

    
552
        do_sdl_resize(ds_get_width(ds), ds_get_height(ds),
553
                      ds_get_bits_per_pixel(ds));
554
        scaling_active = 0;
555

    
556
        gui_saved_grab = gui_grab;
557
        sdl_grab_start();
558
    } else {
559
        if (gui_saved_scaling) {
560
            sdl_scale(ds, gui_saved_width, gui_saved_height);
561
        } else {
562
            do_sdl_resize(ds_get_width(ds), ds_get_height(ds), 0);
563
        }
564
        if (!gui_saved_grab || !is_graphic_console()) {
565
            sdl_grab_end();
566
        }
567
    }
568
    vga_hw_invalidate();
569
    vga_hw_update();
570
}
571

    
572
static void absolute_mouse_grab(void)
573
{
574
    int mouse_x, mouse_y;
575

    
576
    if (SDL_GetAppState() & SDL_APPINPUTFOCUS) {
577
        SDL_GetMouseState(&mouse_x, &mouse_y);
578
        if (mouse_x > 0 && mouse_x < real_screen->w - 1 &&
579
            mouse_y > 0 && mouse_y < real_screen->h - 1) {
580
            sdl_grab_start();
581
        }
582
    }
583
}
584

    
585
static void handle_keydown(DisplayState *ds, SDL_Event *ev)
586
{
587
    int mod_state;
588
    int keycode;
589

    
590
    if (alt_grab) {
591
        mod_state = (SDL_GetModState() & (gui_grab_code | KMOD_LSHIFT)) ==
592
                    (gui_grab_code | KMOD_LSHIFT);
593
    } else if (ctrl_grab) {
594
        mod_state = (SDL_GetModState() & KMOD_RCTRL) == KMOD_RCTRL;
595
    } else {
596
        mod_state = (SDL_GetModState() & gui_grab_code) == gui_grab_code;
597
    }
598
    gui_key_modifier_pressed = mod_state;
599

    
600
    if (gui_key_modifier_pressed) {
601
        keycode = sdl_keyevent_to_keycode(&ev->key);
602
        switch (keycode) {
603
        case 0x21: /* 'f' key on US keyboard */
604
            toggle_full_screen(ds);
605
            gui_keysym = 1;
606
            break;
607
        case 0x16: /* 'u' key on US keyboard */
608
            if (scaling_active) {
609
                scaling_active = 0;
610
                sdl_resize(ds);
611
                vga_hw_invalidate();
612
                vga_hw_update();
613
            }
614
            gui_keysym = 1;
615
            break;
616
        case 0x02 ... 0x0a: /* '1' to '9' keys */
617
            /* Reset the modifiers sent to the current console */
618
            reset_keys();
619
            console_select(keycode - 0x02);
620
            gui_keysym = 1;
621
            if (gui_fullscreen) {
622
                break;
623
            }
624
            if (!is_graphic_console()) {
625
                /* release grab if going to a text console */
626
                if (gui_grab) {
627
                    sdl_grab_end();
628
                } else if (absolute_enabled) {
629
                    sdl_show_cursor();
630
                }
631
            } else if (absolute_enabled) {
632
                sdl_hide_cursor();
633
                absolute_mouse_grab();
634
            }
635
            break;
636
        case 0x1b: /* '+' */
637
        case 0x35: /* '-' */
638
            if (!gui_fullscreen) {
639
                int width = MAX(real_screen->w + (keycode == 0x1b ? 50 : -50),
640
                                160);
641
                int height = (ds_get_height(ds) * width) / ds_get_width(ds);
642

    
643
                sdl_scale(ds, width, height);
644
                vga_hw_invalidate();
645
                vga_hw_update();
646
                gui_keysym = 1;
647
            }
648
        default:
649
            break;
650
        }
651
    } else if (!is_graphic_console()) {
652
        int keysym = 0;
653

    
654
        if (ev->key.keysym.mod & (KMOD_LCTRL | KMOD_RCTRL)) {
655
            switch (ev->key.keysym.sym) {
656
            case SDLK_UP:
657
                keysym = QEMU_KEY_CTRL_UP;
658
                break;
659
            case SDLK_DOWN:
660
                keysym = QEMU_KEY_CTRL_DOWN;
661
                break;
662
            case SDLK_LEFT:
663
                keysym = QEMU_KEY_CTRL_LEFT;
664
                break;
665
            case SDLK_RIGHT:
666
                keysym = QEMU_KEY_CTRL_RIGHT;
667
                break;
668
            case SDLK_HOME:
669
                keysym = QEMU_KEY_CTRL_HOME;
670
                break;
671
            case SDLK_END:
672
                keysym = QEMU_KEY_CTRL_END;
673
                break;
674
            case SDLK_PAGEUP:
675
                keysym = QEMU_KEY_CTRL_PAGEUP;
676
                break;
677
            case SDLK_PAGEDOWN:
678
                keysym = QEMU_KEY_CTRL_PAGEDOWN;
679
                break;
680
            default:
681
                break;
682
            }
683
        } else {
684
            switch (ev->key.keysym.sym) {
685
            case SDLK_UP:
686
                keysym = QEMU_KEY_UP;
687
                break;
688
            case SDLK_DOWN:
689
                keysym = QEMU_KEY_DOWN;
690
                break;
691
            case SDLK_LEFT:
692
                keysym = QEMU_KEY_LEFT;
693
                break;
694
            case SDLK_RIGHT:
695
                keysym = QEMU_KEY_RIGHT;
696
                break;
697
            case SDLK_HOME:
698
                keysym = QEMU_KEY_HOME;
699
                break;
700
            case SDLK_END:
701
                keysym = QEMU_KEY_END;
702
                break;
703
            case SDLK_PAGEUP:
704
                keysym = QEMU_KEY_PAGEUP;
705
                break;
706
            case SDLK_PAGEDOWN:
707
                keysym = QEMU_KEY_PAGEDOWN;
708
                break;
709
            case SDLK_BACKSPACE:
710
                keysym = QEMU_KEY_BACKSPACE;
711
                break;
712
            case SDLK_DELETE:
713
                keysym = QEMU_KEY_DELETE;
714
                break;
715
            default:
716
                break;
717
            }
718
        }
719
        if (keysym) {
720
            kbd_put_keysym(keysym);
721
        } else if (ev->key.keysym.unicode != 0) {
722
            kbd_put_keysym(ev->key.keysym.unicode);
723
        }
724
    }
725
    if (is_graphic_console() && !gui_keysym) {
726
        sdl_process_key(&ev->key);
727
    }
728
}
729

    
730
static void handle_keyup(DisplayState *ds, SDL_Event *ev)
731
{
732
    int mod_state;
733

    
734
    if (!alt_grab) {
735
        mod_state = (ev->key.keysym.mod & gui_grab_code);
736
    } else {
737
        mod_state = (ev->key.keysym.mod & (gui_grab_code | KMOD_LSHIFT));
738
    }
739
    if (!mod_state && gui_key_modifier_pressed) {
740
        gui_key_modifier_pressed = 0;
741
        if (gui_keysym == 0) {
742
            /* exit/enter grab if pressing Ctrl-Alt */
743
            if (!gui_grab) {
744
                /* If the application is not active, do not try to enter grab
745
                 * state. It prevents 'SDL_WM_GrabInput(SDL_GRAB_ON)' from
746
                 * blocking all the application (SDL bug). */
747
                if (is_graphic_console() &&
748
                    SDL_GetAppState() & SDL_APPACTIVE) {
749
                    sdl_grab_start();
750
                }
751
            } else if (!gui_fullscreen) {
752
                sdl_grab_end();
753
            }
754
            /* SDL does not send back all the modifiers key, so we must
755
             * correct it. */
756
            reset_keys();
757
            return;
758
        }
759
        gui_keysym = 0;
760
    }
761
    if (is_graphic_console() && !gui_keysym) {
762
        sdl_process_key(&ev->key);
763
    }
764
}
765

    
766
static void handle_mousemotion(DisplayState *ds, SDL_Event *ev)
767
{
768
    int max_x, max_y;
769

    
770
    if (is_graphic_console() &&
771
        (kbd_mouse_is_absolute() || absolute_enabled)) {
772
        max_x = real_screen->w - 1;
773
        max_y = real_screen->h - 1;
774
        if (gui_grab && (ev->motion.x == 0 || ev->motion.y == 0 ||
775
            ev->motion.x == max_x || ev->motion.y == max_y)) {
776
            sdl_grab_end();
777
        }
778
        if (!gui_grab && SDL_GetAppState() & SDL_APPINPUTFOCUS &&
779
            (ev->motion.x > 0 && ev->motion.x < max_x &&
780
            ev->motion.y > 0 && ev->motion.y < max_y)) {
781
            sdl_grab_start();
782
        }
783
    }
784
    if (gui_grab || kbd_mouse_is_absolute() || absolute_enabled) {
785
        sdl_send_mouse_event(ev->motion.xrel, ev->motion.yrel, 0,
786
                             ev->motion.x, ev->motion.y, ev->motion.state);
787
    }
788
}
789

    
790
static void handle_mousebutton(DisplayState *ds, SDL_Event *ev)
791
{
792
    int buttonstate = SDL_GetMouseState(NULL, NULL);
793
    SDL_MouseButtonEvent *bev;
794
    int dz;
795

    
796
    if (!is_graphic_console()) {
797
        return;
798
    }
799

    
800
    bev = &ev->button;
801
    if (!gui_grab && !kbd_mouse_is_absolute()) {
802
        if (ev->type == SDL_MOUSEBUTTONDOWN &&
803
            (bev->button == SDL_BUTTON_LEFT)) {
804
            /* start grabbing all events */
805
            sdl_grab_start();
806
        }
807
    } else {
808
        dz = 0;
809
        if (ev->type == SDL_MOUSEBUTTONDOWN) {
810
            buttonstate |= SDL_BUTTON(bev->button);
811
        } else {
812
            buttonstate &= ~SDL_BUTTON(bev->button);
813
        }
814
#ifdef SDL_BUTTON_WHEELUP
815
        if (bev->button == SDL_BUTTON_WHEELUP &&
816
            ev->type == SDL_MOUSEBUTTONDOWN) {
817
            dz = -1;
818
        } else if (bev->button == SDL_BUTTON_WHEELDOWN &&
819
                   ev->type == SDL_MOUSEBUTTONDOWN) {
820
            dz = 1;
821
        }
822
#endif
823
        sdl_send_mouse_event(0, 0, dz, bev->x, bev->y, buttonstate);
824
    }
825
}
826

    
827
static void handle_activation(DisplayState *ds, SDL_Event *ev)
828
{
829
    if (gui_grab && ev->active.state == SDL_APPINPUTFOCUS &&
830
        !ev->active.gain && !gui_fullscreen) {
831
        sdl_grab_end();
832
    }
833
    if (!gui_grab && ev->active.gain && is_graphic_console() &&
834
        (kbd_mouse_is_absolute() || absolute_enabled)) {
835
        absolute_mouse_grab();
836
    }
837
    if (ev->active.state & SDL_APPACTIVE) {
838
        if (ev->active.gain) {
839
            /* Back to default interval */
840
            dcl->gui_timer_interval = 0;
841
            dcl->idle = 0;
842
        } else {
843
            /* Sleeping interval */
844
            dcl->gui_timer_interval = 500;
845
            dcl->idle = 1;
846
        }
847
    }
848
}
849

    
850
static void sdl_refresh(DisplayState *ds)
851
{
852
    SDL_Event ev1, *ev = &ev1;
853

    
854
    if (last_vm_running != vm_running) {
855
        last_vm_running = vm_running;
856
        sdl_update_caption();
857
    }
858

    
859
    vga_hw_update();
860
    SDL_EnableUNICODE(!is_graphic_console());
861

    
862
    while (SDL_PollEvent(ev)) {
863
        switch (ev->type) {
864
        case SDL_VIDEOEXPOSE:
865
            sdl_update(ds, 0, 0, real_screen->w, real_screen->h);
866
            break;
867
        case SDL_KEYDOWN:
868
            handle_keydown(ds, ev);
869
            break;
870
        case SDL_KEYUP:
871
            handle_keyup(ds, ev);
872
            break;
873
        case SDL_QUIT:
874
            if (!no_quit) {
875
                no_shutdown = 0;
876
                qemu_system_shutdown_request();
877
            }
878
            break;
879
        case SDL_MOUSEMOTION:
880
            handle_mousemotion(ds, ev);
881
            break;
882
        case SDL_MOUSEBUTTONDOWN:
883
        case SDL_MOUSEBUTTONUP:
884
            handle_mousebutton(ds, ev);
885
            break;
886
        case SDL_ACTIVEEVENT:
887
            handle_activation(ds, ev);
888
            break;
889
        case SDL_VIDEORESIZE:
890
            sdl_scale(ds, ev->resize.w, ev->resize.h);
891
            vga_hw_invalidate();
892
            vga_hw_update();
893
            break;
894
        default:
895
            break;
896
        }
897
    }
898
}
899

    
900
static void sdl_fill(DisplayState *ds, int x, int y, int w, int h, uint32_t c)
901
{
902
    SDL_Rect dst = { x, y, w, h };
903
    SDL_FillRect(real_screen, &dst, c);
904
}
905

    
906
static void sdl_mouse_warp(int x, int y, int on)
907
{
908
    if (on) {
909
        if (!guest_cursor)
910
            sdl_show_cursor();
911
        if (gui_grab || kbd_mouse_is_absolute() || absolute_enabled) {
912
            SDL_SetCursor(guest_sprite);
913
            if (!kbd_mouse_is_absolute() && !absolute_enabled)
914
                SDL_WarpMouse(x, y);
915
        }
916
    } else if (gui_grab)
917
        sdl_hide_cursor();
918
    guest_cursor = on;
919
    guest_x = x, guest_y = y;
920
}
921

    
922
static void sdl_mouse_define(QEMUCursor *c)
923
{
924
    uint8_t *image, *mask;
925
    int bpl;
926

    
927
    if (guest_sprite)
928
        SDL_FreeCursor(guest_sprite);
929

    
930
    bpl = cursor_get_mono_bpl(c);
931
    image = g_malloc0(bpl * c->height);
932
    mask  = g_malloc0(bpl * c->height);
933
    cursor_get_mono_image(c, 0x000000, image);
934
    cursor_get_mono_mask(c, 0, mask);
935
    guest_sprite = SDL_CreateCursor(image, mask, c->width, c->height,
936
                                    c->hot_x, c->hot_y);
937
    g_free(image);
938
    g_free(mask);
939

    
940
    if (guest_cursor &&
941
            (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
942
        SDL_SetCursor(guest_sprite);
943
}
944

    
945
static void sdl_cleanup(void)
946
{
947
    if (guest_sprite)
948
        SDL_FreeCursor(guest_sprite);
949
    SDL_QuitSubSystem(SDL_INIT_VIDEO);
950
}
951

    
952
void sdl_display_init(DisplayState *ds, int full_screen, int no_frame)
953
{
954
    int flags;
955
    uint8_t data = 0;
956
    DisplayAllocator *da;
957
    const SDL_VideoInfo *vi;
958
    char *filename;
959

    
960
#if defined(__APPLE__)
961
    /* always use generic keymaps */
962
    if (!keyboard_layout)
963
        keyboard_layout = "en-us";
964
#endif
965
    if(keyboard_layout) {
966
        kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout);
967
        if (!kbd_layout)
968
            exit(1);
969
    }
970

    
971
    if (no_frame)
972
        gui_noframe = 1;
973

    
974
    if (!full_screen) {
975
        setenv("SDL_VIDEO_ALLOW_SCREENSAVER", "1", 0);
976
    }
977
#ifdef __linux__
978
    /* on Linux, SDL may use fbcon|directfb|svgalib when run without
979
     * accessible $DISPLAY to open X11 window.  This is often the case
980
     * when qemu is run using sudo.  But in this case, and when actually
981
     * run in X11 environment, SDL fights with X11 for the video card,
982
     * making current display unavailable, often until reboot.
983
     * So make x11 the default SDL video driver if this variable is unset.
984
     * This is a bit hackish but saves us from bigger problem.
985
     * Maybe it's a good idea to fix this in SDL instead.
986
     */
987
    setenv("SDL_VIDEODRIVER", "x11", 0);
988
#endif
989

    
990
    /* Enable normal up/down events for Caps-Lock and Num-Lock keys.
991
     * This requires SDL >= 1.2.14. */
992
    setenv("SDL_DISABLE_LOCK_KEYS", "1", 1);
993

    
994
    flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
995
    if (SDL_Init (flags)) {
996
        fprintf(stderr, "Could not initialize SDL(%s) - exiting\n",
997
                SDL_GetError());
998
        exit(1);
999
    }
1000
    vi = SDL_GetVideoInfo();
1001
    host_format = *(vi->vfmt);
1002

    
1003
    /* Load a 32x32x4 image. White pixels are transparent. */
1004
    filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, "qemu-icon.bmp");
1005
    if (filename) {
1006
        SDL_Surface *image = SDL_LoadBMP(filename);
1007
        if (image) {
1008
            uint32_t colorkey = SDL_MapRGB(image->format, 255, 255, 255);
1009
            SDL_SetColorKey(image, SDL_SRCCOLORKEY, colorkey);
1010
            SDL_WM_SetIcon(image, NULL);
1011
        }
1012
        g_free(filename);
1013
    }
1014

    
1015
    if (full_screen) {
1016
        gui_fullscreen = 1;
1017
        sdl_grab_start();
1018
    }
1019

    
1020
    dcl = g_malloc0(sizeof(DisplayChangeListener));
1021
    dcl->dpy_update = sdl_update;
1022
    dcl->dpy_resize = sdl_resize;
1023
    dcl->dpy_refresh = sdl_refresh;
1024
    dcl->dpy_setdata = sdl_setdata;
1025
    dcl->dpy_fill = sdl_fill;
1026
    ds->mouse_set = sdl_mouse_warp;
1027
    ds->cursor_define = sdl_mouse_define;
1028
    register_displaychangelistener(ds, dcl);
1029

    
1030
    da = g_malloc0(sizeof(DisplayAllocator));
1031
    da->create_displaysurface = sdl_create_displaysurface;
1032
    da->resize_displaysurface = sdl_resize_displaysurface;
1033
    da->free_displaysurface = sdl_free_displaysurface;
1034
    if (register_displayallocator(ds, da) == da) {
1035
        dpy_resize(ds);
1036
    }
1037

    
1038
    mouse_mode_notifier.notify = sdl_mouse_mode_change;
1039
    qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier);
1040

    
1041
    sdl_update_caption();
1042
    SDL_EnableKeyRepeat(250, 50);
1043
    gui_grab = 0;
1044

    
1045
    sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0);
1046
    sdl_cursor_normal = SDL_GetCursor();
1047

    
1048
    atexit(sdl_cleanup);
1049
}