aboutsummaryrefslogtreecommitdiff
path: root/xorg-server/hw/xquartz/quartzRandR.c
blob: b7c424f50ec6c1046ec215a66016d4dcf1998333 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
/*
 * Quartz-specific support for the XRandR extension
 *
 * Copyright (c) 2001-2004 Greg Parker and Torrey T. Lyons,
 *               2010      Jan Hauffa.
 *               2010-2011 Apple Inc.
 *                 All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 *
 * Except as contained in this notice, the name(s) of the above copyright
 * holders shall not be used in advertising or otherwise to promote the sale,
 * use or other dealings in this Software without prior written authorization.
 */

#include "sanitizedCarbon.h"

#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif

#include "quartzCommon.h"
#include "quartzRandR.h"
#include "quartz.h"
#include "darwin.h"

#include "X11Application.h"

#include <AvailabilityMacros.h>

#include <X11/extensions/randr.h>
#include <randrstr.h>
#include <IOKit/graphics/IOGraphicsTypes.h>

/* TODO: UGLY, find a better way!
 * We want to ignore kXquartzDisplayChanged which are generated by us
 */
static Bool ignore_next_fake_mode_update = FALSE;

#define FAKE_REFRESH_ROOTLESS 1
#define FAKE_REFRESH_FULLSCREEN 2

#define DEFAULT_REFRESH  60
#define kDisplayModeUsableFlags  (kDisplayModeValidFlag | kDisplayModeSafeFlag)

#define CALLBACK_SUCCESS 0
#define CALLBACK_CONTINUE 1
#define CALLBACK_ERROR -1

typedef int (*QuartzModeCallback)
 (ScreenPtr, QuartzModeInfoPtr, void *);

#if MAC_OS_X_VERSION_MIN_REQUIRED < 1060

static long
getDictLong(CFDictionaryRef dictRef, CFStringRef key)
{
    long value;

    CFNumberRef numRef = (CFNumberRef) CFDictionaryGetValue(dictRef, key);

    if (!numRef)
        return 0;

    if (!CFNumberGetValue(numRef, kCFNumberLongType, &value))
        return 0;
    return value;
}

static double
getDictDouble(CFDictionaryRef dictRef, CFStringRef key)
{
    double value;

    CFNumberRef numRef = (CFNumberRef) CFDictionaryGetValue(dictRef, key);

    if (!numRef)
        return 0.0;

    if (!CFNumberGetValue(numRef, kCFNumberDoubleType, &value))
        return 0.0;
    return value;
}

static void
QuartzRandRGetModeInfo(CFDictionaryRef modeRef, QuartzModeInfoPtr pMode)
{
    pMode->width = (size_t) getDictLong(modeRef, kCGDisplayWidth);
    pMode->height = (size_t) getDictLong(modeRef, kCGDisplayHeight);
    pMode->refresh =
        (int) (getDictDouble(modeRef, kCGDisplayRefreshRate) + 0.5);
    if (pMode->refresh == 0)
        pMode->refresh = DEFAULT_REFRESH;
    pMode->ref = NULL;
    pMode->pSize = NULL;
}

static Bool
QuartzRandRCopyCurrentModeInfo(CGDirectDisplayID screenId,
                               QuartzModeInfoPtr pMode)
{
    CFDictionaryRef curModeRef = CGDisplayCurrentMode(screenId);

    if (!curModeRef)
        return FALSE;

    QuartzRandRGetModeInfo(curModeRef, pMode);
    pMode->ref = (void *) curModeRef;
    CFRetain(pMode->ref);
    return TRUE;
}

static Bool
QuartzRandRSetCGMode(CGDirectDisplayID screenId, QuartzModeInfoPtr pMode)
{
    CFDictionaryRef modeRef = (CFDictionaryRef) pMode->ref;

    return (CGDisplaySwitchToMode(screenId, modeRef) == kCGErrorSuccess);
}

static Bool
QuartzRandREnumerateModes(ScreenPtr pScreen,
                          QuartzModeCallback callback, void *data)
{
    Bool retval = FALSE;
    QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);

    /* Just an 800x600 fallback if we have no attached heads */
    if (pQuartzScreen->displayIDs) {
        CFDictionaryRef curModeRef, modeRef;
        long curBpp;
        CFArrayRef modes;
        QuartzModeInfo modeInfo;
        int i;
        CGDirectDisplayID screenId = pQuartzScreen->displayIDs[0];

        curModeRef = CGDisplayCurrentMode(screenId);
        if (!curModeRef)
            return FALSE;
        curBpp = getDictLong(curModeRef, kCGDisplayBitsPerPixel);

        modes = CGDisplayAvailableModes(screenId);
        if (!modes)
            return FALSE;
        for (i = 0; i < CFArrayGetCount(modes); i++) {
            int cb;

            modeRef = (CFDictionaryRef) CFArrayGetValueAtIndex(modes, i);

            /* Skip modes that are not usable on the current display or have a
               different pixel encoding than the current mode. */
            if (((unsigned long) getDictLong(modeRef, kCGDisplayIOFlags) &
                 kDisplayModeUsableFlags) != kDisplayModeUsableFlags)
                continue;
            if (getDictLong(modeRef, kCGDisplayBitsPerPixel) != curBpp)
                continue;

            QuartzRandRGetModeInfo(modeRef, &modeInfo);
            modeInfo.ref = (void *) modeRef;
            cb = callback(pScreen, &modeInfo, data);
            if (cb == CALLBACK_CONTINUE)
                retval = TRUE;
            else if (cb == CALLBACK_SUCCESS)
                return TRUE;
            else if (cb == CALLBACK_ERROR)
                return FALSE;
        }
    }

    switch (callback(pScreen, &pQuartzScreen->rootlessMode, data)) {
    case CALLBACK_SUCCESS:
        return TRUE;
    case CALLBACK_ERROR:
        return FALSE;
    case CALLBACK_CONTINUE:
        retval = TRUE;
    default:
        break;
    }

    switch (callback(pScreen, &pQuartzScreen->fullscreenMode, data)) {
    case CALLBACK_SUCCESS:
        return TRUE;
    case CALLBACK_ERROR:
        return FALSE;
    case CALLBACK_CONTINUE:
        retval = TRUE;
    default:
        break;
    }

    return retval;
}

#else                           /* we have the new CG APIs from Snow Leopard */

static void
QuartzRandRGetModeInfo(CGDisplayModeRef modeRef, QuartzModeInfoPtr pMode)
{
    pMode->width = CGDisplayModeGetWidth(modeRef);
    pMode->height = CGDisplayModeGetHeight(modeRef);
    pMode->refresh = (int) (CGDisplayModeGetRefreshRate(modeRef) + 0.5);
    if (pMode->refresh == 0)
        pMode->refresh = DEFAULT_REFRESH;
    pMode->ref = NULL;
    pMode->pSize = NULL;
}

static Bool
QuartzRandRCopyCurrentModeInfo(CGDirectDisplayID screenId,
                               QuartzModeInfoPtr pMode)
{
    CGDisplayModeRef curModeRef = CGDisplayCopyDisplayMode(screenId);

    if (!curModeRef)
        return FALSE;

    QuartzRandRGetModeInfo(curModeRef, pMode);
    pMode->ref = curModeRef;
    return TRUE;
}

static Bool
QuartzRandRSetCGMode(CGDirectDisplayID screenId, QuartzModeInfoPtr pMode)
{
    CGDisplayModeRef modeRef = (CGDisplayModeRef) pMode->ref;

    if (!modeRef)
        return FALSE;

    return (CGDisplaySetDisplayMode(screenId, modeRef, NULL) ==
            kCGErrorSuccess);
}

static Bool
QuartzRandREnumerateModes(ScreenPtr pScreen,
                          QuartzModeCallback callback, void *data)
{
    Bool retval = FALSE;
    QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);

    /* Just an 800x600 fallback if we have no attached heads */
    if (pQuartzScreen->displayIDs) {
        CGDisplayModeRef curModeRef, modeRef;
        CFStringRef curPixelEnc, pixelEnc;
        CFComparisonResult pixelEncEqual;
        CFArrayRef modes;
        QuartzModeInfo modeInfo;
        int i;
        CGDirectDisplayID screenId = pQuartzScreen->displayIDs[0];

        curModeRef = CGDisplayCopyDisplayMode(screenId);
        if (!curModeRef)
            return FALSE;
        curPixelEnc = CGDisplayModeCopyPixelEncoding(curModeRef);
        CGDisplayModeRelease(curModeRef);

        modes = CGDisplayCopyAllDisplayModes(screenId, NULL);
        if (!modes) {
            CFRelease(curPixelEnc);
            return FALSE;
        }
        for (i = 0; i < CFArrayGetCount(modes); i++) {
            int cb;

            modeRef = (CGDisplayModeRef) CFArrayGetValueAtIndex(modes, i);

            /* Skip modes that are not usable on the current display or have a
               different pixel encoding than the current mode. */
            if ((CGDisplayModeGetIOFlags(modeRef) & kDisplayModeUsableFlags) !=
                kDisplayModeUsableFlags)
                continue;
            pixelEnc = CGDisplayModeCopyPixelEncoding(modeRef);
            pixelEncEqual = CFStringCompare(pixelEnc, curPixelEnc, 0);
            CFRelease(pixelEnc);
            if (pixelEncEqual != kCFCompareEqualTo)
                continue;

            QuartzRandRGetModeInfo(modeRef, &modeInfo);
            modeInfo.ref = modeRef;
            cb = callback(pScreen, &modeInfo, data);
            if (cb == CALLBACK_CONTINUE) {
                retval = TRUE;
            }
            else if (cb == CALLBACK_SUCCESS) {
                CFRelease(modes);
                CFRelease(curPixelEnc);
                return TRUE;
            }
            else if (cb == CALLBACK_ERROR) {
                CFRelease(modes);
                CFRelease(curPixelEnc);
                return FALSE;
            }
        }

        CFRelease(modes);
        CFRelease(curPixelEnc);
    }

    switch (callback(pScreen, &pQuartzScreen->rootlessMode, data)) {
    case CALLBACK_SUCCESS:
        return TRUE;
    case CALLBACK_ERROR:
        return FALSE;
    case CALLBACK_CONTINUE:
        retval = TRUE;
    default:
        break;
    }

    switch (callback(pScreen, &pQuartzScreen->fullscreenMode, data)) {
    case CALLBACK_SUCCESS:
        return TRUE;
    case CALLBACK_ERROR:
        return FALSE;
    case CALLBACK_CONTINUE:
        retval = TRUE;
    default:
        break;
    }

    return retval;
}

#endif                          /* Snow Leopard CoreGraphics APIs */

static Bool
QuartzRandRModesEqual(QuartzModeInfoPtr pMode1, QuartzModeInfoPtr pMode2)
{
    return (pMode1->width == pMode2->width) &&
        (pMode1->height == pMode2->height) &&
        (pMode1->refresh == pMode2->refresh);
}

static Bool
QuartzRandRRegisterMode(ScreenPtr pScreen, QuartzModeInfoPtr pMode)
{
    QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);
    Bool isCurrentMode =
        QuartzRandRModesEqual(&pQuartzScreen->currentMode, pMode);

    /* TODO: DPI */
    pMode->pSize =
        RRRegisterSize(pScreen, pMode->width, pMode->height, pScreen->mmWidth,
                       pScreen->mmHeight);
    if (pMode->pSize) {
        //DEBUG_LOG("registering: %d x %d @ %d %s\n", (int)pMode->width, (int)pMode->height, (int)pMode->refresh, isCurrentMode ? "*" : "");
        RRRegisterRate(pScreen, pMode->pSize, pMode->refresh);

        if (isCurrentMode)
            RRSetCurrentConfig(pScreen, RR_Rotate_0, pMode->refresh,
                               pMode->pSize);

        return TRUE;
    }
    return FALSE;
}

static int
QuartzRandRRegisterModeCallback(ScreenPtr pScreen,
                                QuartzModeInfoPtr pMode, void *data __unused)
{
    if (QuartzRandRRegisterMode(pScreen, pMode)) {
        return CALLBACK_CONTINUE;
    }
    else {
        return CALLBACK_ERROR;
    }
}

static Bool
QuartzRandRSetMode(ScreenPtr pScreen, QuartzModeInfoPtr pMode, BOOL doRegister)
{
    QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);
    Bool captureDisplay = (pMode->refresh != FAKE_REFRESH_FULLSCREEN &&
                           pMode->refresh != FAKE_REFRESH_ROOTLESS);
    CGDirectDisplayID screenId;

    if (pQuartzScreen->displayIDs == NULL)
        return FALSE;

    screenId = pQuartzScreen->displayIDs[0];
    if (XQuartzShieldingWindowLevel == 0 && captureDisplay) {
        if (!X11ApplicationCanEnterRandR())
            return FALSE;
        CGCaptureAllDisplays();
        XQuartzShieldingWindowLevel = CGShieldingWindowLevel(); // 2147483630
        DEBUG_LOG("Display captured.  ShieldWindowID: %u, Shield level: %d\n",
                  CGShieldingWindowID(screenId), XQuartzShieldingWindowLevel);
    }

    if (pQuartzScreen->currentMode.ref &&
        CFEqual(pMode->ref, pQuartzScreen->currentMode.ref)) {
        DEBUG_LOG("Requested RandR resolution matches current CG mode\n");
    }
    if (QuartzRandRSetCGMode(screenId, pMode)) {
        ignore_next_fake_mode_update = TRUE;
    }
    else {
        DEBUG_LOG("Error while requesting CG resolution change.\n");
        return FALSE;
    }

    /* If the client requested the fake rootless mode, switch to rootless.
     * Otherwise, force fullscreen mode.
     */
    QuartzSetRootless(pMode->refresh == FAKE_REFRESH_ROOTLESS);
    if (pMode->refresh != FAKE_REFRESH_ROOTLESS) {
        QuartzShowFullscreen(TRUE);
    }

    if (pQuartzScreen->currentMode.ref)
        CFRelease(pQuartzScreen->currentMode.ref);
    pQuartzScreen->currentMode = *pMode;
    if (pQuartzScreen->currentMode.ref)
        CFRetain(pQuartzScreen->currentMode.ref);

    if (XQuartzShieldingWindowLevel != 0 && !captureDisplay) {
        CGReleaseAllDisplays();
        XQuartzShieldingWindowLevel = 0;
    }

    return TRUE;
}

static int
QuartzRandRSetModeCallback(ScreenPtr pScreen,
                           QuartzModeInfoPtr pMode, void *data)
{
    QuartzModeInfoPtr pReqMode = (QuartzModeInfoPtr) data;

    if (!QuartzRandRModesEqual(pMode, pReqMode))
        return CALLBACK_CONTINUE;       /* continue enumeration */

    DEBUG_LOG("Found a match for requested RandR resolution (%dx%d@%d).\n",
              (int) pMode->width, (int) pMode->height, (int) pMode->refresh);

    if (QuartzRandRSetMode(pScreen, pMode, FALSE))
        return CALLBACK_SUCCESS;
    else
        return CALLBACK_ERROR;
}

static Bool
QuartzRandRGetInfo(ScreenPtr pScreen, Rotation * rotations)
{
    *rotations = RR_Rotate_0;   /* TODO: support rotation */

    return QuartzRandREnumerateModes(pScreen, QuartzRandRRegisterModeCallback,
                                     NULL);
}

static Bool
QuartzRandRSetConfig(ScreenPtr pScreen,
                     Rotation randr, int rate, RRScreenSizePtr pSize)
{
    QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);
    QuartzModeInfo reqMode;

    reqMode.width = pSize->width;
    reqMode.height = pSize->height;
    reqMode.refresh = rate;

    /* Do not switch modes if requested mode is equal to current mode. */
    if (QuartzRandRModesEqual(&reqMode, &pQuartzScreen->currentMode))
        return TRUE;

    if (QuartzRandREnumerateModes
        (pScreen, QuartzRandRSetModeCallback, &reqMode)) {
        return TRUE;
    }

    DEBUG_LOG("Unable to find a matching config: %d x %d @ %d\n",
              (int) reqMode.width, (int) reqMode.height, (int) reqMode.refresh);
    return FALSE;
}

static Bool
_QuartzRandRUpdateFakeModes(ScreenPtr pScreen)
{
    QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);
    QuartzModeInfo activeMode;

    if (pQuartzScreen->displayCount > 0) {
        if (!QuartzRandRCopyCurrentModeInfo
            (pQuartzScreen->displayIDs[0], &activeMode)) {
            ErrorF("Unable to determine current display mode.\n");
            return FALSE;
        }
    }
    else {
        memset(&activeMode, 0, sizeof(activeMode));
        activeMode.width = 800;
        activeMode.height = 600;
        activeMode.refresh = 60;
    }

    if (pQuartzScreen->fullscreenMode.ref)
        CFRelease(pQuartzScreen->fullscreenMode.ref);
    if (pQuartzScreen->currentMode.ref)
        CFRelease(pQuartzScreen->currentMode.ref);

    if (pQuartzScreen->displayCount > 1) {
        activeMode.width = pScreen->width;
        activeMode.height = pScreen->height;
        if (XQuartzIsRootless)
            activeMode.height += aquaMenuBarHeight;
    }

    pQuartzScreen->fullscreenMode = activeMode;
    pQuartzScreen->fullscreenMode.refresh = FAKE_REFRESH_FULLSCREEN;

    pQuartzScreen->rootlessMode = activeMode;
    pQuartzScreen->rootlessMode.refresh = FAKE_REFRESH_ROOTLESS;
    pQuartzScreen->rootlessMode.height -= aquaMenuBarHeight;

    if (XQuartzIsRootless) {
        pQuartzScreen->currentMode = pQuartzScreen->rootlessMode;
    }
    else {
        pQuartzScreen->currentMode = pQuartzScreen->fullscreenMode;
    }

    /* This extra retain is for currentMode's copy.
     * fullscreen and rootless share a retain.
     */
    if (pQuartzScreen->currentMode.ref)
        CFRetain(pQuartzScreen->currentMode.ref);

    DEBUG_LOG("rootlessMode: %d x %d\n",
              (int) pQuartzScreen->rootlessMode.width,
              (int) pQuartzScreen->rootlessMode.height);
    DEBUG_LOG("fullscreenMode: %d x %d\n",
              (int) pQuartzScreen->fullscreenMode.width,
              (int) pQuartzScreen->fullscreenMode.height);
    DEBUG_LOG("currentMode: %d x %d\n", (int) pQuartzScreen->currentMode.width,
              (int) pQuartzScreen->currentMode.height);

    return TRUE;
}

Bool
QuartzRandRUpdateFakeModes(BOOL force_update)
{
    ScreenPtr pScreen = screenInfo.screens[0];

    if (ignore_next_fake_mode_update) {
        DEBUG_LOG
            ("Ignoring update request caused by RandR resolution change.\n");
        ignore_next_fake_mode_update = FALSE;
        return TRUE;
    }

    if (!_QuartzRandRUpdateFakeModes(pScreen))
        return FALSE;

    if (force_update)
        RRGetInfo(pScreen, TRUE);

    return TRUE;
}

Bool
QuartzRandRInit(ScreenPtr pScreen)
{
    rrScrPrivPtr pScrPriv;

    if (!RRScreenInit(pScreen))
        return FALSE;
    if (!_QuartzRandRUpdateFakeModes(pScreen))
        return FALSE;

    pScrPriv = rrGetScrPriv(pScreen);
    pScrPriv->rrGetInfo = QuartzRandRGetInfo;
    pScrPriv->rrSetConfig = QuartzRandRSetConfig;
    return TRUE;
}

void
QuartzRandRSetFakeRootless(void)
{
    int i;

    DEBUG_LOG("QuartzRandRSetFakeRootless called.\n");

    for (i = 0; i < screenInfo.numScreens; i++) {
        ScreenPtr pScreen = screenInfo.screens[i];
        QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);

        QuartzRandRSetMode(pScreen, &pQuartzScreen->rootlessMode, TRUE);
    }
}

void
QuartzRandRSetFakeFullscreen(BOOL state)
{
    int i;

    DEBUG_LOG("QuartzRandRSetFakeFullscreen called.\n");

    for (i = 0; i < screenInfo.numScreens; i++) {
        ScreenPtr pScreen = screenInfo.screens[i];
        QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);

        QuartzRandRSetMode(pScreen, &pQuartzScreen->fullscreenMode, TRUE);
    }

    QuartzShowFullscreen(state);
}

/* Toggle fullscreen mode.  If "fake" fullscreen is the current mode,
 * this will just show/hide the X11 windows.  If we are in a RandR fullscreen
 * mode, this will toggles us to the default fake mode and hide windows if
 * it is fullscreen
 */
void
QuartzRandRToggleFullscreen(void)
{
    ScreenPtr pScreen = screenInfo.screens[0];
    QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);

    if (pQuartzScreen->currentMode.ref == NULL) {
        ErrorF
            ("Ignoring QuartzRandRToggleFullscreen because don't have a current mode set.\n");
    }
    else if (pQuartzScreen->currentMode.refresh == FAKE_REFRESH_ROOTLESS) {
        ErrorF
            ("Ignoring QuartzRandRToggleFullscreen because we are in rootless mode.\n");
    }
    else if (pQuartzScreen->currentMode.refresh == FAKE_REFRESH_FULLSCREEN) {
        /* Legacy fullscreen mode.  Hide/Show */
        QuartzShowFullscreen(!XQuartzFullscreenVisible);
    }
    else {
        /* RandR fullscreen mode.  Return to default mode and hide if it is fullscreen. */
        if (XQuartzRootlessDefault) {
            QuartzRandRSetFakeRootless();
        }
        else {
            QuartzRandRSetFakeFullscreen(FALSE);
        }
    }
}