summaryrefslogtreecommitdiff
path: root/hw/darwin/darwin.c
blob: 8c4c0bc9b0b4473ba4a953627eb114aca65a6bb8 (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
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
/**************************************************************
 *
 * Shared code for the Darwin X Server
 * running with Quartz or IOKit display mode
 *
 **************************************************************/
/*
 * Copyright (c) 2001-2004 Torrey T. Lyons. 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.
 */
/* $XdotOrg: xc/programs/Xserver/hw/darwin/darwin.c,v 1.3 2004/07/30 18:22:12 torrey Exp $ */
/* $XFree86: xc/programs/Xserver/hw/darwin/darwin.c,v 1.55 2003/11/15 00:07:09 torrey Exp $ */

#include "X.h"
#include "Xproto.h"
#include "os.h"
#include "servermd.h"
#include "inputstr.h"
#include "scrnintstr.h"
#include "mibstore.h"		// mi backing store implementation
#include "mipointer.h"		// mi software cursor
#include "micmap.h"		// mi colormap code
#include "fb.h"			// fb framebuffer code
#include "site.h"
#include "globals.h"
#include "xorgVersion.h"
#include "xf86Date.h"
#include "dix.h"

#ifdef XINPUT
# include "XI.h"
# include "XIproto.h"
# include "exevents.h"
# include "extinit.h"
#endif

#include <sys/types.h>
#include <sys/time.h>
#include <sys/syslimits.h>
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>

#define HAS_UTSNAME 1
#include <sys/utsname.h>

#define NO_CFPLUGIN
#include <IOKit/IOKitLib.h>
#include <IOKit/hidsystem/IOHIDLib.h>
#include <IOKit/hidsystem/ev_keymap.h>

#include "darwin.h"
#include "darwinClut8.h"

/*
 * X server shared global variables
 */
int                     darwinScreensFound = 0;
int                     darwinScreenIndex = 0;
io_connect_t            darwinParamConnect = 0;
int                     darwinEventReadFD = -1;
int                     darwinEventWriteFD = -1;
int                     darwinMouseAccelChange = 1;
int                     darwinFakeButtons = 0;

// location of X11's (0,0) point in global screen coordinates
int                     darwinMainScreenX = 0;
int                     darwinMainScreenY = 0;

// parameters read from the command line or user preferences
unsigned int            darwinDesiredWidth = 0, darwinDesiredHeight = 0;
int                     darwinDesiredDepth = -1;
int                     darwinDesiredRefresh = -1;
char                    *darwinKeymapFile = "USA.keymapping";

// modifier masks for faking mouse buttons
int                     darwinFakeMouse2Mask = NX_COMMANDMASK;
int                     darwinFakeMouse3Mask = NX_ALTERNATEMASK;

static DeviceIntPtr     darwinPointer;
static DeviceIntPtr     darwinKeyboard;

// Common pixmap formats
static PixmapFormatRec formats[] = {
        { 1,    1,      BITMAP_SCANLINE_PAD },
        { 4,    8,      BITMAP_SCANLINE_PAD },
        { 8,    8,      BITMAP_SCANLINE_PAD },
        { 15,   16,     BITMAP_SCANLINE_PAD },
        { 16,   16,     BITMAP_SCANLINE_PAD },
        { 24,   32,     BITMAP_SCANLINE_PAD },
        { 32,   32,     BITMAP_SCANLINE_PAD }
};
const int NUMFORMATS = sizeof(formats)/sizeof(formats[0]);

#ifndef OSNAME
#define OSNAME " Darwin"
#endif
#ifndef OSVENDOR
#define OSVENDOR ""
#endif
#ifndef PRE_RELEASE
#define PRE_RELEASE XORG_VERSION_SNAP
#endif

void
DarwinPrintBanner()
{
#if PRE_RELEASE
  ErrorF("\n"
    "This is a pre-release version of the " XVENDORNAME " X11.\n"
    "Portions of this release are based on XFree86 4.4RC2 and selected\n"
    "files from XFree86 4.4RC3. It is not supported in any way.\n"
    "Bugs may be filed in the bugzilla at http://bugs.freedesktop.org/.\n"
    "Select the \"xorg\" product for bugs you find in this release.\n"
    "Before reporting bugs in pre-release versions please check the\n"
    "latest version in the " XVENDORNAME " \"monolithic tree\" CVS\n"
    "repository hosted at http://www.freedesktop.org/Software/xorg/");
#endif
#if XORG_VERSION_SNAP > 0
  ErrorF(".%d", XORG_VERSION_SNAP);
#endif

#if XORG_VERSION_SNAP >= 900
  ErrorF(" (%d.%d.0 RC %d)", XORG_VERSION_MAJOR, XORG_VERSION_MINOR + 1,
				XORG_VERSION_SNAP - 900);
#endif

#ifdef XORG_CUSTOM_VERSION
  ErrorF(" (%s)", XF86_CUSTOM_VERSION);
#endif
  ErrorF("\nRelease Date: %s\n", XF86_DATE);
  ErrorF("X Protocol Version %d, Revision %d, %s\n",
         X_PROTOCOL, X_PROTOCOL_REVISION, XORG_RELEASE );
  ErrorF("Build Operating System:%s%s\n", OSNAME, OSVENDOR);
#ifdef HAS_UTSNAME
  {
    struct utsname name;

    if (uname(&name) == 0) {
      ErrorF("Current Operating System: %s %s %s %s %s\n",
	name.sysname, name.nodename, name.release, name.version, name.machine);
    }
  }
#endif
#if defined(BUILD_DATE) && (BUILD_DATE > 19000000)
  {
    struct tm t;
    char buf[100];

    bzero(&t, sizeof(t));
    bzero(buf, sizeof(buf));
    t.tm_mday = BUILD_DATE % 100;
    t.tm_mon = (BUILD_DATE / 100) % 100 - 1;
    t.tm_year = BUILD_DATE / 10000 - 1900;
    if (strftime(buf, sizeof(buf), "%d %B %Y", &t))
       ErrorF("Build Date: %s\n", buf);
  }
#endif
#if defined(CLOG_DATE) && (CLOG_DATE > 19000000)
  {
    struct tm t;
    char buf[100];

    bzero(&t, sizeof(t));
    bzero(buf, sizeof(buf));
    t.tm_mday = CLOG_DATE % 100;
    t.tm_mon = (CLOG_DATE / 100) % 100 - 1;
    t.tm_year = CLOG_DATE / 10000 - 1900;
    if (strftime(buf, sizeof(buf), "%d %B %Y", &t))
       ErrorF("Changelog Date: %s\n", buf);
  }
#endif
#if defined(BUILDERSTRING)
  ErrorF("%s \n",BUILDERSTRING);
#endif
  ErrorF("\tBefore reporting problems, check "__VENDORDWEBSUPPORT__"\n"
	 "\tto make sure that you have the latest version.\n");
}


/*
 * DarwinSaveScreen
 *  X screensaver support. Not implemented.
 */
static Bool DarwinSaveScreen(ScreenPtr pScreen, int on)
{
    // FIXME
    if (on == SCREEN_SAVER_FORCER) {
    } else if (on == SCREEN_SAVER_ON) {
    } else {
    }
    return TRUE;
}


/*
 * DarwinAddScreen
 *  This is a callback from dix during AddScreen() from InitOutput().
 *  Initialize the screen and communicate information about it back to dix.
 */
static Bool DarwinAddScreen(
    int         index,
    ScreenPtr   pScreen,
    int         argc,
    char        **argv )
{
    int         bitsPerRGB, i, dpi;
    static int  foundIndex = 0;
    Bool        ret;
    VisualPtr   visual;
    ColormapPtr pmap;
    DarwinFramebufferPtr dfb;

    // reset index of found screens for each server generation
    if (index == 0) foundIndex = 0;

    // allocate space for private per screen storage
    dfb = xalloc(sizeof(DarwinFramebufferRec));
    SCREEN_PRIV(pScreen) = dfb;

    // setup hardware/mode specific details
    ret = DarwinModeAddScreen(foundIndex, pScreen);
    foundIndex++;
    if (! ret)
        return FALSE;

    bitsPerRGB = dfb->bitsPerComponent;

    // reset the visual list
    miClearVisualTypes();

    // setup a single visual appropriate for our pixel type
    if (dfb->colorType == TrueColor) {
        if (!miSetVisualTypes( dfb->colorBitsPerPixel, TrueColorMask,
                               bitsPerRGB, TrueColor )) {
            return FALSE;
        }
    } else if (dfb->colorType == PseudoColor) {
        if (!miSetVisualTypes( dfb->colorBitsPerPixel, PseudoColorMask,
                               bitsPerRGB, PseudoColor )) {
            return FALSE;
        }
    } else if (dfb->colorType == StaticColor) {
        if (!miSetVisualTypes( dfb->colorBitsPerPixel, StaticColorMask,
                               bitsPerRGB, StaticColor )) {
            return FALSE;
        }
    } else {
        return FALSE;
    }

    miSetPixmapDepths();

    // machine independent screen init
    // setup _Screen structure in pScreen
    if (monitorResolution)
        dpi = monitorResolution;
    else
        dpi = 75;

    // initialize fb
    if (! fbScreenInit(pScreen,
                dfb->framebuffer,                 // pointer to screen bitmap
                dfb->width, dfb->height,          // screen size in pixels
                dpi, dpi,                         // dots per inch
                dfb->pitch/(dfb->bitsPerPixel/8), // pixel width of framebuffer
                dfb->bitsPerPixel))               // bits per pixel for screen
    {
        return FALSE;
    }

    // set the RGB order correctly for TrueColor
    if (dfb->bitsPerPixel > 8) {
        for (i = 0, visual = pScreen->visuals;  // someday we may have more than 1
            i < pScreen->numVisuals; i++, visual++) {
            if (visual->class == TrueColor) {
                visual->offsetRed = bitsPerRGB * 2;
                visual->offsetGreen = bitsPerRGB;
                visual->offsetBlue = 0;
                visual->redMask = ((1<<bitsPerRGB)-1) << visual->offsetRed;
                visual->greenMask = ((1<<bitsPerRGB)-1) << visual->offsetGreen;
                visual->blueMask = ((1<<bitsPerRGB)-1) << visual->offsetBlue;
            }
        }
    }

#ifdef RENDER
    if (! fbPictureInit(pScreen, 0, 0)) {
        return FALSE;
    }
#endif

#ifdef MITSHM
    ShmRegisterFbFuncs(pScreen);
#endif

    // this must be initialized (why doesn't X have a default?)
    pScreen->SaveScreen = DarwinSaveScreen;

    // finish mode dependent screen setup including cursor support
    if (!DarwinModeSetupScreen(index, pScreen)) {
        return FALSE;
    }

    // create and install the default colormap and
    // set pScreen->blackPixel / pScreen->white
    if (!miCreateDefColormap( pScreen )) {
        return FALSE;
    }

    /* Set the colormap to the statically defined one if we're in 8 bit
     * mode and we're using a fixed color map.  Essentially this translates
     * to Darwin/x86 in 8-bit mode.
     */
    if( (dfb->colorBitsPerPixel == 8) &&
                (dfb->colorType == StaticColor) )
    {
        pmap = miInstalledMaps[pScreen->myNum];
        visual = pmap->pVisual;
        for( i = 0; i < visual->ColormapEntries; i++ ) {
            pmap->red[i].co.local.red   = darwinClut8[i].red;
            pmap->red[i].co.local.green = darwinClut8[i].green;
            pmap->red[i].co.local.blue  = darwinClut8[i].blue;
        }
    }

    dixScreenOrigins[index].x = dfb->x;
    dixScreenOrigins[index].y = dfb->y;

    ErrorF("Screen %d added: %dx%d @ (%d,%d)\n",
            index, dfb->width, dfb->height, dfb->x, dfb->y);

    return TRUE;
}

/*
 =============================================================================

 mouse and keyboard callbacks

 =============================================================================
*/

/*
 * DarwinChangePointerControl
 *  Set mouse acceleration and thresholding
 *  FIXME: We currently ignore the threshold in ctrl->threshold.
 */
static void DarwinChangePointerControl(
    DeviceIntPtr    device,
    PtrCtrl         *ctrl )
{
    kern_return_t   kr;
    double          acceleration;

    if (!darwinMouseAccelChange)
        return;

    acceleration = ctrl->num / ctrl->den;
    kr = IOHIDSetMouseAcceleration( darwinParamConnect, acceleration );
    if (kr != KERN_SUCCESS)
        ErrorF( "Could not set mouse acceleration with kernel return = 0x%x.\n", kr );
}


/*
 * DarwinMouseProc
 *  Handle the initialization, etc. of a mouse
 */
static int DarwinMouseProc(
    DeviceIntPtr    pPointer,
    int             what )
{
    char map[6];

    switch (what) {

        case DEVICE_INIT:
            pPointer->public.on = FALSE;

            // Set button map.
            map[1] = 1;
            map[2] = 2;
            map[3] = 3;
            map[4] = 4;
            map[5] = 5;
            InitPointerDeviceStruct( (DevicePtr)pPointer,
                        map,
                        5,   // numbuttons (4 & 5 are scroll wheel)
                        miPointerGetMotionEvents,
                        DarwinChangePointerControl,
                        0 );
#ifdef XINPUT
            InitValuatorAxisStruct( pPointer,
                                    0,     // X axis
                                    0,     // min value
                                    16000, // max value (fixme screen size?)
                                    1,     // resolution (fixme ?)
                                    1,     // min resolution
                                    1 );   // max resolution
            InitValuatorAxisStruct( pPointer,
                                    1,     // X axis
                                    0,     // min value
                                    16000, // max value (fixme screen size?)
                                    1,     // resolution (fixme ?)
                                    1,     // min resolution
                                    1 );   // max resolution
#endif
            break;

        case DEVICE_ON:
            pPointer->public.on = TRUE;
            AddEnabledDevice( darwinEventReadFD );
            return Success;

        case DEVICE_CLOSE:
        case DEVICE_OFF:
            pPointer->public.on = FALSE;
            RemoveEnabledDevice( darwinEventReadFD );
            return Success;
    }

    return Success;
}


/*
 * DarwinKeybdProc
 *  Callback from X
 */
static int DarwinKeybdProc( DeviceIntPtr pDev, int onoff )
{
    switch ( onoff ) {
        case DEVICE_INIT:
            DarwinKeyboardInit( pDev );
            break;
        case DEVICE_ON:
            pDev->public.on = TRUE;
            AddEnabledDevice( darwinEventReadFD );
            break;
        case DEVICE_OFF:
            pDev->public.on = FALSE;
            RemoveEnabledDevice( darwinEventReadFD );
            break;
        case DEVICE_CLOSE:
            break;
    }

    return Success;
}

/*
===========================================================================

 Utility routines

===========================================================================
*/

/*
 * DarwinFindLibraryFile
 *  Search for a file in the standard Library paths, which are (in order):
 *
 *      ~/Library/              user specific
 *      /Library/               host specific
 *      /Network/Library/       LAN specific
 *      /System/Library/        OS specific
 *
 *  A sub-path can be specified to search in below the various Library
 *  directories. Returns a new character string (owned by the caller)
 *  containing the full path to the first file found.
 */
static char * DarwinFindLibraryFile(
    const char *file,
    const char *pathext )
{
    // Library search paths
    char *pathList[] = {
        "",
        "/Network",
        "/System",
        NULL
    };
    char *home;
    char *fullPath;
    int i = 0;

    // Return the file name as is if it is already a fully qualified path.
    if (!access(file, F_OK)) {
        fullPath = xalloc(strlen(file)+1);
        strcpy(fullPath, file);
        return fullPath;
    }

    fullPath = xalloc(PATH_MAX);

    home = getenv("HOME");
    if (home) {
        snprintf(fullPath, PATH_MAX, "%s/Library/%s/%s", home, pathext, file);
        if (!access(fullPath, F_OK))
            return fullPath;
    }

    while (pathList[i]) {
        snprintf(fullPath, PATH_MAX, "%s/Library/%s/%s", pathList[i++],
                 pathext, file);
        if (!access(fullPath, F_OK))
            return fullPath;
    }

    xfree(fullPath);
    return NULL;
}


/*
 * DarwinParseModifierList
 *  Parse a list of modifier names and return a corresponding modifier mask
 */
static int DarwinParseModifierList(
    const char *constmodifiers) // string containing list of modifier names
{
    int result = 0;

    if (constmodifiers) {
        char *modifiers = strdup(constmodifiers);
        char *modifier;
        int nxkey;
        char *p = modifiers;

        while (p) {
            modifier = strsep(&p, " ,+&|/"); // allow lots of separators
            nxkey = DarwinModifierStringToNXKey(modifier);
            if (nxkey != -1)
                result |= DarwinModifierNXKeyToNXMask(nxkey);
            else
                ErrorF("fakebuttons: Unknown modifier \"%s\"\n", modifier);
        }
        free(modifiers);
    }
    return result;
}

/*
===========================================================================

 Functions needed to link against device independent X

===========================================================================
*/

/*
 * InitInput
 *  Register the keyboard and mouse devices
 */
void InitInput( int argc, char **argv )
{
    darwinPointer = AddInputDevice(DarwinMouseProc, TRUE);
    RegisterPointerDevice( darwinPointer );

    darwinKeyboard = AddInputDevice(DarwinKeybdProc, TRUE);
    RegisterKeyboardDevice( darwinKeyboard );

    DarwinEQInit( (DevicePtr)darwinKeyboard, (DevicePtr)darwinPointer );

    DarwinModeInitInput(argc, argv);
}


/*
 * DarwinAdjustScreenOrigins
 *  Shift all screens so the X11 (0, 0) coordinate is at the top
 *  left of the global screen coordinates.
 *
 *  Screens can be arranged so the top left isn't on any screen, so
 *  instead use the top left of the leftmost screen as (0,0). This
 *  may mean some screen space is in -y, but it's better that (0,0)
 *  be onscreen, or else default xterms disappear. It's better that
 *  -y be used than -x, because when popup menus are forced
 *  "onscreen" by dumb window managers like twm, they'll shift the
 *  menus down instead of left, which still looks funny but is an
 *  easier target to hit.
 */
void
DarwinAdjustScreenOrigins(ScreenInfo *pScreenInfo)
{
    int i, left, top;

    left = dixScreenOrigins[0].x;
    top  = dixScreenOrigins[0].y;

    /* Find leftmost screen. If there's a tie, take the topmost of the two. */
    for (i = 1; i < pScreenInfo->numScreens; i++) {
        if (dixScreenOrigins[i].x < left  ||
            (dixScreenOrigins[i].x == left &&
             dixScreenOrigins[i].y < top))
        {
            left = dixScreenOrigins[i].x;
            top = dixScreenOrigins[i].y;
        }
    }

    darwinMainScreenX = left;
    darwinMainScreenY = top;

    /* Shift all screens so that there is a screen whose top left
       is at X11 (0,0) and at global screen coordinate
       (darwinMainScreenX, darwinMainScreenY). */

    if (darwinMainScreenX != 0 || darwinMainScreenY != 0) {
        for (i = 0; i < pScreenInfo->numScreens; i++) {
            dixScreenOrigins[i].x -= darwinMainScreenX;
            dixScreenOrigins[i].y -= darwinMainScreenY;
            ErrorF("Screen %d placed at X11 coordinate (%d,%d).\n",
                   i, dixScreenOrigins[i].x, dixScreenOrigins[i].y);
        }
    }
}


/*
 * InitOutput
 *  Initialize screenInfo for all actually accessible framebuffers.
 *
 *  The display mode dependent code gets called three times. The mode
 *  specific InitOutput routines are expected to discover the number
 *  of potentially useful screens and cache routes to them internally.
 *  Inside DarwinAddScreen are two other mode specific calls.
 *  A mode specific AddScreen routine is called for each screen to
 *  actually initialize the screen with the ScreenPtr structure.
 *  After other screen setup has been done, a mode specific
 *  SetupScreen function can be called to finalize screen setup.
 */
void InitOutput( ScreenInfo *pScreenInfo, int argc, char **argv )
{
    int i;
    static unsigned long generation = 0;

    pScreenInfo->imageByteOrder = IMAGE_BYTE_ORDER;
    pScreenInfo->bitmapScanlineUnit = BITMAP_SCANLINE_UNIT;
    pScreenInfo->bitmapScanlinePad = BITMAP_SCANLINE_PAD;
    pScreenInfo->bitmapBitOrder = BITMAP_BIT_ORDER;

    // List how we want common pixmap formats to be padded
    pScreenInfo->numPixmapFormats = NUMFORMATS;
    for (i = 0; i < NUMFORMATS; i++)
        pScreenInfo->formats[i] = formats[i];

    // Allocate private storage for each screen's Darwin specific info
    if (generation != serverGeneration) {
        darwinScreenIndex = AllocateScreenPrivateIndex();
        generation = serverGeneration;
    }

    // Discover screens and do mode specific initialization
    DarwinModeInitOutput(argc, argv);

    // Add screens
    for (i = 0; i < darwinScreensFound; i++) {
        AddScreen( DarwinAddScreen, argc, argv );
    }

    DarwinAdjustScreenOrigins(pScreenInfo);
}


/*
 * OsVendorFataError
 */
void OsVendorFatalError( void )
{
    ErrorF( "   OsVendorFatalError\n" );
}


/*
 * OsVendorInit
 *  Initialization of Darwin OS support.
 */
void OsVendorInit(void)
{
    if (serverGeneration == 1) {
        DarwinPrintBanner();
    }

    // Find the full path to the keymapping file.
    if ( darwinKeymapFile ) {
        char *tempStr = DarwinFindLibraryFile(darwinKeymapFile, "Keyboards");
        if ( !tempStr ) {
            ErrorF("Could not find keymapping file %s.\n", darwinKeymapFile);
        } else {
            ErrorF("Using keymapping provided in %s.\n", tempStr);
        }
        darwinKeymapFile = tempStr;
    }

    if ( !darwinKeymapFile ) {
        ErrorF("Reading keymap from the system.\n");
    }
}


/*
 * ddxInitGlobals
 *  Called by InitGlobals() from os/util.c.
 */
void ddxInitGlobals(void)
{
}


/*
 * ddxProcessArgument
 *  Process device-dependent command line args. Returns 0 if argument is
 *  not device dependent, otherwise Count of number of elements of argv
 *  that are part of a device dependent commandline option.
 */
int ddxProcessArgument( int argc, char *argv[], int i )
{
    int numDone;

    if ((numDone = DarwinModeProcessArgument( argc, argv, i )))
        return numDone;

    if ( !strcmp( argv[i], "-fakebuttons" ) ) {
        darwinFakeButtons = TRUE;
        ErrorF( "Faking a three button mouse\n" );
        return 1;
    }

    if ( !strcmp( argv[i], "-nofakebuttons" ) ) {
        darwinFakeButtons = FALSE;
        ErrorF( "Not faking a three button mouse\n" );
        return 1;
    }

    if (!strcmp( argv[i], "-fakemouse2" ) ) {
        if ( i == argc-1 ) {
            FatalError( "-fakemouse2 must be followed by a modifer list\n" );
        }
        if (!strcasecmp(argv[i+1], "none") || !strcmp(argv[i+1], ""))
            darwinFakeMouse2Mask = 0;
        else
            darwinFakeMouse2Mask = DarwinParseModifierList(argv[i+1]);
        ErrorF("Modifier mask to fake mouse button 2 = 0x%x\n",
               darwinFakeMouse2Mask);
        return 2;
    }

    if (!strcmp( argv[i], "-fakemouse3" ) ) {
        if ( i == argc-1 ) {
            FatalError( "-fakemouse3 must be followed by a modifer list\n" );
        }
        if (!strcasecmp(argv[i+1], "none") || !strcmp(argv[i+1], ""))
            darwinFakeMouse3Mask = 0;
        else
            darwinFakeMouse3Mask = DarwinParseModifierList(argv[i+1]);
        ErrorF("Modifier mask to fake mouse button 3 = 0x%x\n",
               darwinFakeMouse3Mask);
        return 2;
    }

    if ( !strcmp( argv[i], "-keymap" ) ) {
        if ( i == argc-1 ) {
            FatalError( "-keymap must be followed by a filename\n" );
        }
        darwinKeymapFile = argv[i+1];
        return 2;
    }

    if ( !strcmp( argv[i], "-nokeymap" ) ) {
        darwinKeymapFile = NULL;
        return 1;
    }

    if ( !strcmp( argv[i], "-size" ) ) {
        if ( i >= argc-2 ) {
            FatalError( "-size must be followed by two numbers\n" );
        }
#ifdef OLD_POWERBOOK_G3
        ErrorF( "Ignoring unsupported -size option on old PowerBook G3\n" );
#else
        darwinDesiredWidth = atoi( argv[i+1] );
        darwinDesiredHeight = atoi( argv[i+2] );
        ErrorF( "Attempting to use width x height = %i x %i\n",
                darwinDesiredWidth, darwinDesiredHeight );
#endif
        return 3;
    }

    if ( !strcmp( argv[i], "-depth" ) ) {
        int     bitDepth;

        if ( i == argc-1 ) {
            FatalError( "-depth must be followed by a number\n" );
        }
#ifdef OLD_POWERBOOK_G3
        ErrorF( "Ignoring unsupported -depth option on old PowerBook G3\n");
#else
        bitDepth = atoi( argv[i+1] );
        if (bitDepth == 8)
            darwinDesiredDepth = 0;
        else if (bitDepth == 15)
            darwinDesiredDepth = 1;
        else if (bitDepth == 24)
            darwinDesiredDepth = 2;
        else
            FatalError( "Unsupported pixel depth. Use 8, 15, or 24 bits\n" );
        ErrorF( "Attempting to use pixel depth of %i\n", bitDepth );
#endif
        return 2;
    }

    if ( !strcmp( argv[i], "-refresh" ) ) {
        if ( i == argc-1 ) {
            FatalError( "-refresh must be followed by a number\n" );
        }
#ifdef OLD_POWERBOOK_G3
        ErrorF( "Ignoring unsupported -refresh option on old PowerBook G3\n");
#else
        darwinDesiredRefresh = atoi( argv[i+1] );
        ErrorF( "Attempting to use refresh rate of %i\n", darwinDesiredRefresh );
#endif
        return 2;
    }

    if (!strcmp( argv[i], "-showconfig" ) || !strcmp( argv[i], "-version" )) {
        DarwinPrintBanner();
        exit(0);
    }

    // XDarwinStartup uses this argument to indicate the IOKit X server
    // should be started. Ignore it here.
    if ( !strcmp( argv[i], "-iokit" ) ) {
        return 1;
    }

    return 0;
}


/*
 * ddxUseMsg --
 *  Print out correct use of device dependent commandline options.
 *  Maybe the user now knows what really to do ...
 */
void ddxUseMsg( void )
{
    ErrorF("\n");
    ErrorF("\n");
    ErrorF("Device Dependent Usage:\n");
    ErrorF("\n");
    ErrorF("-fakebuttons : fake a three button mouse with Command and Option keys.\n");
    ErrorF("-nofakebuttons : don't fake a three button mouse.\n");
    ErrorF("-fakemouse2 <modifiers> : fake middle mouse button with modifier keys.\n");
    ErrorF("-fakemouse3 <modifiers> : fake right mouse button with modifier keys.\n");
    ErrorF("  ex: -fakemouse2 \"option,shift\" = option-shift-click is middle button.\n");
    ErrorF("-keymap <file> : read the keymapping from a file instead of the kernel.\n");
    ErrorF("-version : show the server version.\n");
    ErrorF("\n");
#ifdef DARWIN_WITH_QUARTZ
    ErrorF("Quartz modes:\n");
    ErrorF("-fullscreen : run full screen in parallel with Mac OS X window server.\n");
    ErrorF("-rootless : run rootless inside Mac OS X window server.\n");
    ErrorF("-quartz : use default Mac OS X window server mode\n");
    ErrorF("\n");
    ErrorF("Options ignored in rootless mode:\n");
#endif
    ErrorF("-size <height> <width> : use a screen resolution of <height> x <width>.\n");
    ErrorF("-depth <8,15,24> : use this bit depth.\n");
    ErrorF("-refresh <rate> : use a monitor refresh rate of <rate> Hz.\n");
    ErrorF("\n");
}


/*
 * ddxGiveUp --
 *      Device dependent cleanup. Called by dix before normal server death.
 */
void ddxGiveUp( void )
{
    ErrorF( "Quitting XDarwin...\n" );

    DarwinModeGiveUp();
}


/*
 * AbortDDX --
 *      DDX - specific abort routine.  Called by AbortServer(). The attempt is
 *      made to restore all original setting of the displays. Also all devices
 *      are closed.
 */
void AbortDDX( void )
{
    ErrorF( "   AbortDDX\n" );
    /*
     * This is needed for a abnormal server exit, since the normal exit stuff
     * MUST also be performed (i.e. the vt must be left in a defined state)
     */
    ddxGiveUp();
}


#ifdef DPMSExtension
/*
 * DPMS extension stubs
 */
Bool DPMSSupported(void)
{
    return FALSE;
}

void DPMSSet(int level)
{
}

int DPMSGet(int *level)
{
    return -1;
}
#endif


#include "mivalidate.h" // for union _Validate used by windowstr.h
#include "windowstr.h"  // for struct _Window
#include "scrnintstr.h" // for struct _Screen

// This is copied from Xserver/hw/xfree86/common/xf86Helper.c.
// Quartz mode uses this when switching in and out of Quartz.
// Quartz or IOKit can use this when waking from sleep.
// Copyright (c) 1997-1998 by The XFree86 Project, Inc.

/*
 * xf86SetRootClip --
 *	Enable or disable rendering to the screen by
 *	setting the root clip list and revalidating
 *	all of the windows
 */

void
xf86SetRootClip (ScreenPtr pScreen, BOOL enable)
{
    WindowPtr	pWin = WindowTable[pScreen->myNum];
    WindowPtr	pChild;
    Bool	WasViewable = (Bool)(pWin->viewable);
    Bool	anyMarked = TRUE;
    RegionPtr	pOldClip = NULL, bsExposed;
#ifdef DO_SAVE_UNDERS
    Bool	dosave = FALSE;
#endif
    WindowPtr   pLayerWin;
    BoxRec	box;

    if (WasViewable)
    {
	for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib)
	{
	    (void) (*pScreen->MarkOverlappedWindows)(pChild,
						     pChild,
						     &pLayerWin);
	}
	(*pScreen->MarkWindow) (pWin);
	anyMarked = TRUE;
	if (pWin->valdata)
	{
	    if (HasBorder (pWin))
	    {
		RegionPtr	borderVisible;

		borderVisible = REGION_CREATE(pScreen, NullBox, 1);
		REGION_SUBTRACT(pScreen, borderVisible,
				&pWin->borderClip, &pWin->winSize);
		pWin->valdata->before.borderVisible = borderVisible;
	    }
	    pWin->valdata->before.resized = TRUE;
	}
    }

    /*
     * Use REGION_BREAK to avoid optimizations in ValidateTree
     * that assume the root borderClip can't change well, normally
     * it doesn't...)
     */
    if (enable)
    {
	box.x1 = 0;
	box.y1 = 0;
	box.x2 = pScreen->width;
	box.y2 = pScreen->height;
	REGION_RESET(pScreen, &pWin->borderClip, &box);
	REGION_BREAK (pWin->drawable.pScreen, &pWin->clipList);
    }
    else
    {
	REGION_EMPTY(pScreen, &pWin->borderClip);
	REGION_BREAK (pWin->drawable.pScreen, &pWin->clipList);
    }

    ResizeChildrenWinSize (pWin, 0, 0, 0, 0);

    if (WasViewable)
    {
	if (pWin->backStorage)
	{
	    pOldClip = REGION_CREATE(pScreen, NullBox, 1);
	    REGION_COPY(pScreen, pOldClip, &pWin->clipList);
	}

	if (pWin->firstChild)
	{
	    anyMarked |= (*pScreen->MarkOverlappedWindows)(pWin->firstChild,
							   pWin->firstChild,
							   (WindowPtr *)NULL);
	}
	else
	{
	    (*pScreen->MarkWindow) (pWin);
	    anyMarked = TRUE;
	}

#ifdef DO_SAVE_UNDERS
	if (DO_SAVE_UNDERS(pWin))
	{
	    dosave = (*pScreen->ChangeSaveUnder)(pLayerWin, pLayerWin);
	}
#endif /* DO_SAVE_UNDERS */

	if (anyMarked)
	    (*pScreen->ValidateTree)(pWin, NullWindow, VTOther);
    }

    if (pWin->backStorage &&
	((pWin->backingStore == Always) || WasViewable))
    {
	if (!WasViewable)
	    pOldClip = &pWin->clipList; /* a convenient empty region */
	bsExposed = (*pScreen->TranslateBackingStore)
			     (pWin, 0, 0, pOldClip,
			      pWin->drawable.x, pWin->drawable.y);
	if (WasViewable)
	    REGION_DESTROY(pScreen, pOldClip);
	if (bsExposed)
	{
	    RegionPtr	valExposed = NullRegion;

	    if (pWin->valdata)
		valExposed = &pWin->valdata->after.exposed;
	    (*pScreen->WindowExposures) (pWin, valExposed, bsExposed);
	    if (valExposed)
		REGION_EMPTY(pScreen, valExposed);
	    REGION_DESTROY(pScreen, bsExposed);
	}
    }
    if (WasViewable)
    {
	if (anyMarked)
	    (*pScreen->HandleExposures)(pWin);
#ifdef DO_SAVE_UNDERS
	if (dosave)
	    (*pScreen->PostChangeSaveUnder)(pLayerWin, pLayerWin);
#endif /* DO_SAVE_UNDERS */
	if (anyMarked && pScreen->PostValidateTree)
	    (*pScreen->PostValidateTree)(pWin, NullWindow, VTOther);
    }
    if (pWin->realized)
	WindowsRestructured ();
    FlushAllOutput ();
}