aboutsummaryrefslogtreecommitdiff
path: root/xorg-server/randr/randrstr.h
blob: 1c0e9d4db649954e866280d969f21f4d073b3d9e (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
/*
 * Copyright © 2000 Compaq Computer Corporation
 * Copyright © 2002 Hewlett-Packard Company
 * Copyright © 2006 Intel Corporation
 * Copyright © 2008 Red Hat, Inc.
 *
 * Permission to use, copy, modify, distribute, and sell this software and its
 * documentation for any purpose is hereby granted without fee, provided that
 * the above copyright notice appear in all copies and that both that copyright
 * notice and this permission notice appear in supporting documentation, and
 * that the name of the copyright holders not be used in advertising or
 * publicity pertaining to distribution of the software without specific,
 * written prior permission.  The copyright holders make no representations
 * about the suitability of this software for any purpose.  It is provided "as
 * is" without express or implied warranty.
 *
 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
 * OF THIS SOFTWARE.
 *
 * Author:  Jim Gettys, Hewlett-Packard Company, Inc.
 *	    Keith Packard, Intel Corporation
 */

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

#ifndef _RANDRSTR_H_
#define _RANDRSTR_H_

#include <X11/X.h>
#include <X11/Xproto.h>
#include "misc.h"
#include "os.h"
#include "dixstruct.h"
#include "resource.h"
#include "scrnintstr.h"
#include "windowstr.h"
#include "pixmapstr.h"
#include "extnsionst.h"
#include "servermd.h"
#include "rrtransform.h"
#include <X11/extensions/randr.h>
#include <X11/extensions/randrproto.h>
#include <X11/extensions/render.h>      /* we share subpixel order information */
#include "picturestr.h"
#include <X11/Xfuncproto.h>

/* required for ABI compatibility for now */
#define RANDR_10_INTERFACE 1
#define RANDR_12_INTERFACE 1
#define RANDR_13_INTERFACE 1    /* requires RANDR_12_INTERFACE */
#define RANDR_GET_CRTC_INTERFACE 1

#define RANDR_INTERFACE_VERSION 0x0103

typedef XID RRMode;
typedef XID RROutput;
typedef XID RRCrtc;

extern _X_EXPORT int RREventBase, RRErrorBase;

extern _X_EXPORT int (*ProcRandrVector[RRNumberRequests]) (ClientPtr);
extern _X_EXPORT int (*SProcRandrVector[RRNumberRequests]) (ClientPtr);

/*
 * Modeline for a monitor. Name follows directly after this struct
 */

#define RRModeName(pMode) ((char *) (pMode + 1))
typedef struct _rrMode RRModeRec, *RRModePtr;
typedef struct _rrPropertyValue RRPropertyValueRec, *RRPropertyValuePtr;
typedef struct _rrProperty RRPropertyRec, *RRPropertyPtr;
typedef struct _rrCrtc RRCrtcRec, *RRCrtcPtr;
typedef struct _rrOutput RROutputRec, *RROutputPtr;

struct _rrMode {
    int refcnt;
    xRRModeInfo mode;
    char *name;
    ScreenPtr userScreen;
};

struct _rrPropertyValue {
    Atom type;                  /* ignored by server */
    short format;               /* format of data for swapping - 8,16,32 */
    long size;                  /* size of data in (format/8) bytes */
    pointer data;               /* private to client */
};

struct _rrProperty {
    RRPropertyPtr next;
    ATOM propertyName;
    Bool is_pending;
    Bool range;
    Bool immutable;
    int num_valid;
    INT32 *valid_values;
    RRPropertyValueRec current, pending;
};

struct _rrCrtc {
    RRCrtc id;
    ScreenPtr pScreen;
    RRModePtr mode;
    int x, y;
    Rotation rotation;
    Rotation rotations;
    Bool changed;
    int numOutputs;
    RROutputPtr *outputs;
    int gammaSize;
    CARD16 *gammaRed;
    CARD16 *gammaBlue;
    CARD16 *gammaGreen;
    void *devPrivate;
    Bool transforms;
    RRTransformRec client_pending_transform;
    RRTransformRec client_current_transform;
    PictTransform transform;
    struct pict_f_transform f_transform;
    struct pict_f_transform f_inverse;
};

struct _rrOutput {
    RROutput id;
    ScreenPtr pScreen;
    char *name;
    int nameLength;
    CARD8 connection;
    CARD8 subpixelOrder;
    int mmWidth;
    int mmHeight;
    RRCrtcPtr crtc;
    int numCrtcs;
    RRCrtcPtr *crtcs;
    int numClones;
    RROutputPtr *clones;
    int numModes;
    int numPreferred;
    RRModePtr *modes;
    int numUserModes;
    RRModePtr *userModes;
    Bool changed;
    RRPropertyPtr properties;
    Bool pendingProperties;
    void *devPrivate;
};

#if RANDR_12_INTERFACE
typedef Bool (*RRScreenSetSizeProcPtr) (ScreenPtr pScreen,
                                        CARD16 width,
                                        CARD16 height,
                                        CARD32 mmWidth, CARD32 mmHeight);

typedef Bool (*RRCrtcSetProcPtr) (ScreenPtr pScreen,
                                  RRCrtcPtr crtc,
                                  RRModePtr mode,
                                  int x,
                                  int y,
                                  Rotation rotation,
                                  int numOutputs, RROutputPtr * outputs);

typedef Bool (*RRCrtcSetGammaProcPtr) (ScreenPtr pScreen, RRCrtcPtr crtc);

typedef Bool (*RRCrtcGetGammaProcPtr) (ScreenPtr pScreen, RRCrtcPtr crtc);

typedef Bool (*RROutputSetPropertyProcPtr) (ScreenPtr pScreen,
                                            RROutputPtr output,
                                            Atom property,
                                            RRPropertyValuePtr value);

typedef Bool (*RROutputValidateModeProcPtr) (ScreenPtr pScreen,
                                             RROutputPtr output,
                                             RRModePtr mode);

typedef void (*RRModeDestroyProcPtr) (ScreenPtr pScreen, RRModePtr mode);

#endif

#if RANDR_13_INTERFACE
typedef Bool (*RROutputGetPropertyProcPtr) (ScreenPtr pScreen,
                                            RROutputPtr output, Atom property);
typedef Bool (*RRGetPanningProcPtr) (ScreenPtr pScrn,
                                     RRCrtcPtr crtc,
                                     BoxPtr totalArea,
                                     BoxPtr trackingArea, INT16 *border);
typedef Bool (*RRSetPanningProcPtr) (ScreenPtr pScrn,
                                     RRCrtcPtr crtc,
                                     BoxPtr totalArea,
                                     BoxPtr trackingArea, INT16 *border);

#endif                          /* RANDR_13_INTERFACE */

typedef Bool (*RRGetInfoProcPtr) (ScreenPtr pScreen, Rotation * rotations);
typedef Bool (*RRCloseScreenProcPtr) (int i, ScreenPtr pscreen);

/* These are for 1.0 compatibility */

typedef struct _rrRefresh {
    CARD16 rate;
    RRModePtr mode;
} RRScreenRate, *RRScreenRatePtr;

typedef struct _rrScreenSize {
    int id;
    short width, height;
    short mmWidth, mmHeight;
    int nRates;
    RRScreenRatePtr pRates;
} RRScreenSize, *RRScreenSizePtr;

#ifdef RANDR_10_INTERFACE

typedef Bool (*RRSetConfigProcPtr) (ScreenPtr pScreen,
                                    Rotation rotation,
                                    int rate, RRScreenSizePtr pSize);

#endif

typedef struct _rrScrPriv {
    /*
     * 'public' part of the structure; DDXen fill this in
     * as they initialize
     */
#if RANDR_10_INTERFACE
    RRSetConfigProcPtr rrSetConfig;
#endif
    RRGetInfoProcPtr rrGetInfo;
#if RANDR_12_INTERFACE
    RRScreenSetSizeProcPtr rrScreenSetSize;
    RRCrtcSetProcPtr rrCrtcSet;
    RRCrtcSetGammaProcPtr rrCrtcSetGamma;
    RRCrtcGetGammaProcPtr rrCrtcGetGamma;
    RROutputSetPropertyProcPtr rrOutputSetProperty;
    RROutputValidateModeProcPtr rrOutputValidateMode;
    RRModeDestroyProcPtr rrModeDestroy;
#endif
#if RANDR_13_INTERFACE
    RROutputGetPropertyProcPtr rrOutputGetProperty;
    RRGetPanningProcPtr rrGetPanning;
    RRSetPanningProcPtr rrSetPanning;
#endif

    /*
     * Private part of the structure; not considered part of the ABI
     */
    TimeStamp lastSetTime;      /* last changed by client */
    TimeStamp lastConfigTime;   /* possible configs changed */
    RRCloseScreenProcPtr CloseScreen;

    Bool changed;               /* some config changed */
    Bool configChanged;         /* configuration changed */
    Bool layoutChanged;         /* screen layout changed */

    CARD16 minWidth, minHeight;
    CARD16 maxWidth, maxHeight;
    CARD16 width, height;       /* last known screen size */
    CARD16 mmWidth, mmHeight;   /* last known screen size */

    int numOutputs;
    RROutputPtr *outputs;
    RROutputPtr primaryOutput;

    int numCrtcs;
    RRCrtcPtr *crtcs;

    /* Last known pointer position */
    RRCrtcPtr pointerCrtc;

#ifdef RANDR_10_INTERFACE
    /*
     * Configuration information
     */
    Rotation rotations;
    CARD16 reqWidth, reqHeight;

    int nSizes;
    RRScreenSizePtr pSizes;

    Rotation rotation;
    int rate;
    int size;
#endif
    Bool discontiguous;
} rrScrPrivRec, *rrScrPrivPtr;

extern _X_EXPORT DevPrivateKeyRec rrPrivKeyRec;

#define rrPrivKey (&rrPrivKeyRec)

#define rrGetScrPriv(pScr)  ((rrScrPrivPtr)dixLookupPrivate(&(pScr)->devPrivates, rrPrivKey))
#define rrScrPriv(pScr)	rrScrPrivPtr    pScrPriv = rrGetScrPriv(pScr)
#define SetRRScreen(s,p) dixSetPrivate(&(s)->devPrivates, rrPrivKey, p)

/*
 * each window has a list of clients requesting
 * RRNotify events.  Each client has a resource
 * for each window it selects RRNotify input for,
 * this resource is used to delete the RRNotifyRec
 * entry from the per-window queue.
 */

typedef struct _RREvent *RREventPtr;

typedef struct _RREvent {
    RREventPtr next;
    ClientPtr client;
    WindowPtr window;
    XID clientResource;
    int mask;
} RREventRec;

typedef struct _RRTimes {
    TimeStamp setTime;
    TimeStamp configTime;
} RRTimesRec, *RRTimesPtr;

typedef struct _RRClient {
    int major_version;
    int minor_version;
/*  RRTimesRec	times[0]; */
} RRClientRec, *RRClientPtr;

extern _X_EXPORT RESTYPE RRClientType, RREventType;     /* resource types for event masks */
extern _X_EXPORT DevPrivateKeyRec RRClientPrivateKeyRec;

#define RRClientPrivateKey (&RRClientPrivateKeyRec)
extern _X_EXPORT RESTYPE RRCrtcType, RRModeType, RROutputType;

#define VERIFY_RR_OUTPUT(id, ptr, a)\
    {\
	int rc = dixLookupResourceByType((pointer *)&(ptr), id,\
	                                 RROutputType, client, a);\
	if (rc != Success) {\
	    client->errorValue = id;\
	    return rc;\
	}\
    }

#define VERIFY_RR_CRTC(id, ptr, a)\
    {\
	int rc = dixLookupResourceByType((pointer *)&(ptr), id,\
	                                 RRCrtcType, client, a);\
	if (rc != Success) {\
	    client->errorValue = id;\
	    return rc;\
	}\
    }

#define VERIFY_RR_MODE(id, ptr, a)\
    {\
	int rc = dixLookupResourceByType((pointer *)&(ptr), id,\
	                                 RRModeType, client, a);\
	if (rc != Success) {\
	    client->errorValue = id;\
	    return rc;\
	}\
    }

#define GetRRClient(pClient)    ((RRClientPtr)dixLookupPrivate(&(pClient)->devPrivates, RRClientPrivateKey))
#define rrClientPriv(pClient)	RRClientPtr pRRClient = GetRRClient(pClient)

/* Initialize the extension */
extern _X_EXPORT void
 RRExtensionInit(void);

#ifdef RANDR_12_INTERFACE
/*
 * Set the range of sizes for the screen
 */
extern _X_EXPORT void

RRScreenSetSizeRange(ScreenPtr pScreen,
                     CARD16 minWidth,
                     CARD16 minHeight, CARD16 maxWidth, CARD16 maxHeight);
#endif

/* rrscreen.c */
/*
 * Notify the extension that the screen size has been changed.
 * The driver is responsible for calling this whenever it has changed
 * the size of the screen
 */
extern _X_EXPORT void
 RRScreenSizeNotify(ScreenPtr pScreen);

/*
 * Request that the screen be resized
 */
extern _X_EXPORT Bool

RRScreenSizeSet(ScreenPtr pScreen,
                CARD16 width, CARD16 height, CARD32 mmWidth, CARD32 mmHeight);

/*
 * Send ConfigureNotify event to root window when 'something' happens
 */
extern _X_EXPORT void
 RRSendConfigNotify(ScreenPtr pScreen);

/*
 * screen dispatch
 */
extern _X_EXPORT int
 ProcRRGetScreenSizeRange(ClientPtr client);

extern _X_EXPORT int
 ProcRRSetScreenSize(ClientPtr client);

extern _X_EXPORT int
 ProcRRGetScreenResources(ClientPtr client);

extern _X_EXPORT int
 ProcRRGetScreenResourcesCurrent(ClientPtr client);

extern _X_EXPORT int
 ProcRRSetScreenConfig(ClientPtr client);

extern _X_EXPORT int
 ProcRRGetScreenInfo(ClientPtr client);

/*
 * Deliver a ScreenNotify event
 */
extern _X_EXPORT void
 RRDeliverScreenEvent(ClientPtr client, WindowPtr pWin, ScreenPtr pScreen);

/* randr.c */
/*
 * Send all pending events
 */
extern _X_EXPORT void
 RRTellChanged(ScreenPtr pScreen);

/*
 * Poll the driver for changed information
 */
extern _X_EXPORT Bool
 RRGetInfo(ScreenPtr pScreen, Bool force_query);

extern _X_EXPORT Bool RRInit(void);

extern _X_EXPORT Bool RRScreenInit(ScreenPtr pScreen);

extern _X_EXPORT RROutputPtr RRFirstOutput(ScreenPtr pScreen);

extern _X_EXPORT CARD16
 RRVerticalRefresh(xRRModeInfo * mode);

#ifdef RANDR_10_INTERFACE
/*
 * This is the old interface, deprecated but left
 * around for compatibility
 */

/*
 * Then, register the specific size with the screen
 */

extern _X_EXPORT RRScreenSizePtr
RRRegisterSize(ScreenPtr pScreen,
               short width, short height, short mmWidth, short mmHeight);

extern _X_EXPORT Bool
 RRRegisterRate(ScreenPtr pScreen, RRScreenSizePtr pSize, int rate);

/*
 * Finally, set the current configuration of the screen
 */

extern _X_EXPORT void

RRSetCurrentConfig(ScreenPtr pScreen,
                   Rotation rotation, int rate, RRScreenSizePtr pSize);

extern _X_EXPORT Rotation RRGetRotation(ScreenPtr pScreen);

#endif

/* rrcrtc.c */

/*
 * Notify the CRTC of some change; layoutChanged indicates that
 * some position or size element changed
 */
extern _X_EXPORT void
 RRCrtcChanged(RRCrtcPtr crtc, Bool layoutChanged);

/*
 * Create a CRTC
 */
extern _X_EXPORT RRCrtcPtr RRCrtcCreate(ScreenPtr pScreen, void *devPrivate);

/*
 * Set the allowed rotations on a CRTC
 */
extern _X_EXPORT void
 RRCrtcSetRotations(RRCrtcPtr crtc, Rotation rotations);

/*
 * Set whether transforms are allowed on a CRTC
 */
extern _X_EXPORT void
 RRCrtcSetTransformSupport(RRCrtcPtr crtc, Bool transforms);

/*
 * Notify the extension that the Crtc has been reconfigured,
 * the driver calls this whenever it has updated the mode
 */
extern _X_EXPORT Bool

RRCrtcNotify(RRCrtcPtr crtc,
             RRModePtr mode,
             int x,
             int y,
             Rotation rotation,
             RRTransformPtr transform, int numOutputs, RROutputPtr * outputs);

extern _X_EXPORT void
 RRDeliverCrtcEvent(ClientPtr client, WindowPtr pWin, RRCrtcPtr crtc);

/*
 * Request that the Crtc be reconfigured
 */
extern _X_EXPORT Bool

RRCrtcSet(RRCrtcPtr crtc,
          RRModePtr mode,
          int x,
          int y, Rotation rotation, int numOutput, RROutputPtr * outputs);

/*
 * Request that the Crtc gamma be changed
 */

extern _X_EXPORT Bool
 RRCrtcGammaSet(RRCrtcPtr crtc, CARD16 *red, CARD16 *green, CARD16 *blue);

/*
 * Request current gamma back from the DDX (if possible).
 * This includes gamma size.
 */

extern _X_EXPORT Bool
 RRCrtcGammaGet(RRCrtcPtr crtc);

/*
 * Notify the extension that the Crtc gamma has been changed
 * The driver calls this whenever it has changed the gamma values
 * in the RRCrtcRec
 */

extern _X_EXPORT Bool
 RRCrtcGammaNotify(RRCrtcPtr crtc);

/*
 * Set the size of the gamma table at server startup time
 */

extern _X_EXPORT Bool
 RRCrtcGammaSetSize(RRCrtcPtr crtc, int size);

/*
 * Return the area of the frame buffer scanned out by the crtc,
 * taking into account the current mode and rotation
 */

extern _X_EXPORT void
 RRCrtcGetScanoutSize(RRCrtcPtr crtc, int *width, int *height);

/*
 * Return crtc transform
 */
extern _X_EXPORT RRTransformPtr RRCrtcGetTransform(RRCrtcPtr crtc);

/*
 * Check whether the pending and current transforms are the same
 */
extern _X_EXPORT Bool
 RRCrtcPendingTransform(RRCrtcPtr crtc);

/*
 * Destroy a Crtc at shutdown
 */
extern _X_EXPORT void
 RRCrtcDestroy(RRCrtcPtr crtc);

/*
 * Set the pending CRTC transformation
 */

extern _X_EXPORT int

RRCrtcTransformSet(RRCrtcPtr crtc,
                   PictTransformPtr transform,
                   struct pict_f_transform *f_transform,
                   struct pict_f_transform *f_inverse,
                   char *filter, int filter_len, xFixed * params, int nparams);

/*
 * Initialize crtc type
 */
extern _X_EXPORT Bool
 RRCrtcInit(void);

/*
 * Initialize crtc type error value
 */
extern _X_EXPORT void
 RRCrtcInitErrorValue(void);

/*
 * Crtc dispatch
 */

extern _X_EXPORT int
 ProcRRGetCrtcInfo(ClientPtr client);

extern _X_EXPORT int
 ProcRRSetCrtcConfig(ClientPtr client);

extern _X_EXPORT int
 ProcRRGetCrtcGammaSize(ClientPtr client);

extern _X_EXPORT int
 ProcRRGetCrtcGamma(ClientPtr client);

extern _X_EXPORT int
 ProcRRSetCrtcGamma(ClientPtr client);

extern _X_EXPORT int
 ProcRRSetCrtcTransform(ClientPtr client);

extern _X_EXPORT int
 ProcRRGetCrtcTransform(ClientPtr client);

int
 ProcRRGetPanning(ClientPtr client);

int
 ProcRRSetPanning(ClientPtr client);

void
 RRConstrainCursorHarder(DeviceIntPtr, ScreenPtr, int, int *, int *);

/* rrdispatch.c */
extern _X_EXPORT Bool
 RRClientKnowsRates(ClientPtr pClient);

/* rrmode.c */
/*
 * Find, and if necessary, create a mode
 */

extern _X_EXPORT RRModePtr RRModeGet(xRRModeInfo * modeInfo, const char *name);

/*
 * Destroy a mode.
 */

extern _X_EXPORT void
 RRModeDestroy(RRModePtr mode);

/*
 * Return a list of modes that are valid for some output in pScreen
 */
extern _X_EXPORT RRModePtr *RRModesForScreen(ScreenPtr pScreen, int *num_ret);

/*
 * Initialize mode type
 */
extern _X_EXPORT Bool
 RRModeInit(void);

/*
 * Initialize mode type error value
 */
extern _X_EXPORT void
 RRModeInitErrorValue(void);

extern _X_EXPORT int
 ProcRRCreateMode(ClientPtr client);

extern _X_EXPORT int
 ProcRRDestroyMode(ClientPtr client);

extern _X_EXPORT int
 ProcRRAddOutputMode(ClientPtr client);

extern _X_EXPORT int
 ProcRRDeleteOutputMode(ClientPtr client);

/* rroutput.c */

/*
 * Notify the output of some change. configChanged indicates whether
 * any external configuration (mode list, clones, connected status)
 * has changed, or whether the change was strictly internal
 * (which crtc is in use)
 */
extern _X_EXPORT void
 RROutputChanged(RROutputPtr output, Bool configChanged);

/*
 * Create an output
 */

extern _X_EXPORT RROutputPtr
RROutputCreate(ScreenPtr pScreen,
               const char *name, int nameLength, void *devPrivate);

/*
 * Notify extension that output parameters have been changed
 */
extern _X_EXPORT Bool
 RROutputSetClones(RROutputPtr output, RROutputPtr * clones, int numClones);

extern _X_EXPORT Bool

RROutputSetModes(RROutputPtr output,
                 RRModePtr * modes, int numModes, int numPreferred);

extern _X_EXPORT int
 RROutputAddUserMode(RROutputPtr output, RRModePtr mode);

extern _X_EXPORT int
 RROutputDeleteUserMode(RROutputPtr output, RRModePtr mode);

extern _X_EXPORT Bool
 RROutputSetCrtcs(RROutputPtr output, RRCrtcPtr * crtcs, int numCrtcs);

extern _X_EXPORT Bool
 RROutputSetConnection(RROutputPtr output, CARD8 connection);

extern _X_EXPORT Bool
 RROutputSetSubpixelOrder(RROutputPtr output, int subpixelOrder);

extern _X_EXPORT Bool
 RROutputSetPhysicalSize(RROutputPtr output, int mmWidth, int mmHeight);

extern _X_EXPORT void
 RRDeliverOutputEvent(ClientPtr client, WindowPtr pWin, RROutputPtr output);

extern _X_EXPORT void
 RROutputDestroy(RROutputPtr output);

extern _X_EXPORT int
 ProcRRGetOutputInfo(ClientPtr client);

extern _X_EXPORT int
 ProcRRSetOutputPrimary(ClientPtr client);

extern _X_EXPORT int
 ProcRRGetOutputPrimary(ClientPtr client);

/*
 * Initialize output type
 */
extern _X_EXPORT Bool
 RROutputInit(void);

/*
 * Initialize output type error value
 */
extern _X_EXPORT void
 RROutputInitErrorValue(void);

/* rrpointer.c */
extern _X_EXPORT void
 RRPointerMoved(ScreenPtr pScreen, int x, int y);

extern _X_EXPORT void
 RRPointerScreenConfigured(ScreenPtr pScreen);

/* rrproperty.c */

extern _X_EXPORT void
 RRDeleteAllOutputProperties(RROutputPtr output);

extern _X_EXPORT RRPropertyValuePtr
RRGetOutputProperty(RROutputPtr output, Atom property, Bool pending);

extern _X_EXPORT RRPropertyPtr
RRQueryOutputProperty(RROutputPtr output, Atom property);

extern _X_EXPORT void
 RRDeleteOutputProperty(RROutputPtr output, Atom property);

extern _X_EXPORT Bool
 RRPostPendingProperties(RROutputPtr output);

extern _X_EXPORT int

RRChangeOutputProperty(RROutputPtr output, Atom property, Atom type,
                       int format, int mode, unsigned long len,
                       pointer value, Bool sendevent, Bool pending);

extern _X_EXPORT int

RRConfigureOutputProperty(RROutputPtr output, Atom property,
                          Bool pending, Bool range, Bool immutable,
                          int num_values, INT32 *values);
extern _X_EXPORT int
 ProcRRChangeOutputProperty(ClientPtr client);

extern _X_EXPORT int
 ProcRRGetOutputProperty(ClientPtr client);

extern _X_EXPORT int
 ProcRRListOutputProperties(ClientPtr client);

extern _X_EXPORT int
 ProcRRQueryOutputProperty(ClientPtr client);

extern _X_EXPORT int
 ProcRRConfigureOutputProperty(ClientPtr client);

extern _X_EXPORT int
 ProcRRDeleteOutputProperty(ClientPtr client);

/* rrxinerama.c */
#ifdef XINERAMA
extern _X_EXPORT void
 RRXineramaExtensionInit(void);
#endif

#endif                          /* _RANDRSTR_H_ */

/*
 
randr extension implementation structure

Query state:
    ProcRRGetScreenInfo/ProcRRGetScreenResources
	RRGetInfo
 
	    • Request configuration from driver, either 1.0 or 1.2 style
	    • These functions only record state changes, all
	      other actions are pended until RRTellChanged is called
 
	    ->rrGetInfo
	    1.0:
		RRRegisterSize
		RRRegisterRate
		RRSetCurrentConfig
	    1.2:
		RRScreenSetSizeRange
		RROutputSetCrtcs
		RRModeGet
		RROutputSetModes
		RROutputSetConnection
		RROutputSetSubpixelOrder
		RROutputSetClones
		RRCrtcNotify
 
	• Must delay scanning configuration until after ->rrGetInfo returns
	  because some drivers will call SetCurrentConfig in the middle
	  of the ->rrGetInfo operation.
 
	1.0:

	    • Scan old configuration, mirror to new structures
 
	    RRScanOldConfig
		RRCrtcCreate
		RROutputCreate
		RROutputSetCrtcs
		RROutputSetConnection
		RROutputSetSubpixelOrder
		RROldModeAdd	• This adds modes one-at-a-time
		    RRModeGet
		RRCrtcNotify
 
	• send events, reset pointer if necessary
 
	RRTellChanged
	    WalkTree (sending events)
 
	    • when layout has changed:
		RRPointerScreenConfigured
		RRSendConfigNotify
 
Asynchronous state setting (1.2 only)
    When setting state asynchronously, the driver invokes the
    ->rrGetInfo function and then calls RRTellChanged to flush
    the changes to the clients and reset pointer if necessary

Set state

    ProcRRSetScreenConfig
	RRCrtcSet
	    1.2:
		->rrCrtcSet
		    RRCrtcNotify
	    1.0:
		->rrSetConfig
		RRCrtcNotify
	    RRTellChanged
 */