xf86Crtc.h@ 17473

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1	/*
2	* Copyright © 2006 Keith Packard
3	*
4	* Permission to use, copy, modify, distribute, and sell this software and its
5	* documentation for any purpose is hereby granted without fee, provided that
6	* the above copyright notice appear in all copies and that both that copyright
7	* notice and this permission notice appear in supporting documentation, and
8	* that the name of the copyright holders not be used in advertising or
9	* publicity pertaining to distribution of the software without specific,
10	* written prior permission. The copyright holders make no representations
11	* about the suitability of this software for any purpose. It is provided "as
12	* is" without express or implied warranty.
13	*
14	* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
15	* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
16	* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
17	* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
18	* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
19	* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
20	* OF THIS SOFTWARE.
21	*/
22	#ifndef _XF86CRTC_H_
23	#define _XF86CRTC_H_
24
25	#include <edid.h>
26	#include "randrstr.h"
27	#if XF86_MODES_RENAME
28	#include "xf86Rename.h"
29	#endif
30	#include "xf86Modes.h"
31	#include "xf86Cursor.h"
32	#include "xf86i2c.h"
33	#include "damage.h"
34	#include "picturestr.h"
35
36	/* Compat definitions for older X Servers. */
37	#ifndef M_T_PREFERRED
38	#define M_T_PREFERRED 0x08
39	#endif
40	#ifndef M_T_DRIVER
41	#define M_T_DRIVER 0x40
42	#endif
43	#ifndef M_T_USERPREF
44	#define M_T_USERPREF 0x80
45	#endif
46	#ifndef HARDWARE_CURSOR_ARGB
47	#define HARDWARE_CURSOR_ARGB 0x00004000
48	#endif
49
50	typedef struct _xf86Crtc xf86CrtcRec, *xf86CrtcPtr;
51	typedef struct _xf86Output xf86OutputRec, *xf86OutputPtr;
52
53	/* define a standard for connector types */
54	typedef enum _xf86ConnectorType {
55	XF86ConnectorNone,
56	XF86ConnectorVGA,
57	XF86ConnectorDVI_I,
58	XF86ConnectorDVI_D,
59	XF86ConnectorDVI_A,
60	XF86ConnectorComposite,
61	XF86ConnectorSvideo,
62	XF86ConnectorComponent,
63	XF86ConnectorLFP,
64	XF86ConnectorProprietary,
65	XF86ConnectorHDMI,
66	XF86ConnectorDisplayPort,
67	} xf86ConnectorType;
68
69	typedef enum _xf86OutputStatus {
70	XF86OutputStatusConnected,
71	XF86OutputStatusDisconnected,
72	XF86OutputStatusUnknown
73	} xf86OutputStatus;
74
75	typedef struct _xf86CrtcFuncs {
76	/**
77	* Turns the crtc on/off, or sets intermediate power levels if available.
78	*
79	* Unsupported intermediate modes drop to the lower power setting. If the
80	* mode is DPMSModeOff, the crtc must be disabled sufficiently for it to
81	* be safe to call mode_set.
82	*/
83	void
84	(*dpms)(xf86CrtcPtr crtc,
85	int mode);
86
87	/**
88	* Saves the crtc's state for restoration on VT switch.
89	*/
90	void
91	(*save)(xf86CrtcPtr crtc);
92
93	/**
94	* Restore's the crtc's state at VT switch.
95	*/
96	void
97	(*restore)(xf86CrtcPtr crtc);
98
99	/**
100	* Lock CRTC prior to mode setting, mostly for DRI.
101	* Returns whether unlock is needed
102	*/
103	Bool
104	(*lock) (xf86CrtcPtr crtc);
105
106	/**
107	* Unlock CRTC after mode setting, mostly for DRI
108	*/
109	void
110	(*unlock) (xf86CrtcPtr crtc);
111
112	/**
113	* Callback to adjust the mode to be set in the CRTC.
114	*
115	* This allows a CRTC to adjust the clock or even the entire set of
116	* timings, which is used for panels with fixed timings or for
117	* buses with clock limitations.
118	*/
119	Bool
120	(*mode_fixup)(xf86CrtcPtr crtc,
121	DisplayModePtr mode,
122	DisplayModePtr adjusted_mode);
123
124	/**
125	* Prepare CRTC for an upcoming mode set.
126	*/
127	void
128	(*prepare)(xf86CrtcPtr crtc);
129
130	/**
131	* Callback for setting up a video mode after fixups have been made.
132	*/
133	void
134	(*mode_set)(xf86CrtcPtr crtc,
135	DisplayModePtr mode,
136	DisplayModePtr adjusted_mode,
137	int x, int y);
138
139	/**
140	* Commit mode changes to a CRTC
141	*/
142	void
143	(*commit)(xf86CrtcPtr crtc);
144
145	/* Set the color ramps for the CRTC to the given values. */
146	void
147	(gamma_set)(xf86CrtcPtr crtc, CARD16 red, CARD16 green, CARD16 blue,
148	int size);
149
150	/**
151	* Allocate the shadow area, delay the pixmap creation until needed
152	*/
153	void *
154	(*shadow_allocate) (xf86CrtcPtr crtc, int width, int height);
155
156	/**
157	* Create shadow pixmap for rotation support
158	*/
159	PixmapPtr
160	(shadow_create) (xf86CrtcPtr crtc, void data, int width, int height);
161
162	/**
163	* Destroy shadow pixmap
164	*/
165	void
166	(shadow_destroy) (xf86CrtcPtr crtc, PixmapPtr pPixmap, void data);
167
168	/**
169	* Set cursor colors
170	*/
171	void
172	(*set_cursor_colors) (xf86CrtcPtr crtc, int bg, int fg);
173
174	/**
175	* Set cursor position
176	*/
177	void
178	(*set_cursor_position) (xf86CrtcPtr crtc, int x, int y);
179
180	/**
181	* Show cursor
182	*/
183	void
184	(*show_cursor) (xf86CrtcPtr crtc);
185
186	/**
187	* Hide cursor
188	*/
189	void
190	(*hide_cursor) (xf86CrtcPtr crtc);
191
192	/**
193	* Load monochrome image
194	*/
195	void
196	(load_cursor_image) (xf86CrtcPtr crtc, CARD8 image);
197
198	/**
199	* Load ARGB image
200	*/
201	void
202	(load_cursor_argb) (xf86CrtcPtr crtc, CARD32 image);
203
204	/**
205	* Clean up driver-specific bits of the crtc
206	*/
207	void
208	(*destroy) (xf86CrtcPtr crtc);
209
210	/**
211	* Less fine-grained mode setting entry point for kernel modesetting
212	*/
213	Bool
214	(*set_mode_major)(xf86CrtcPtr crtc, DisplayModePtr mode,
215	Rotation rotation, int x, int y);
216
217	/**
218	* Callback for panning. Doesn't change the mode.
219	*/
220	void
221	(*set_origin)(xf86CrtcPtr crtc, int x, int y);
222
223	} xf86CrtcFuncsRec, *xf86CrtcFuncsPtr;
224
225	#define XF86_CRTC_VERSION 2
226
227	struct _xf86Crtc {
228	/**
229	* ABI versioning
230	*/
231	int version;
232
233	/**
234	* Associated ScrnInfo
235	*/
236	ScrnInfoPtr scrn;
237
238	/**
239	* Active state of this CRTC
240	*
241	* Set when this CRTC is driving one or more outputs
242	*/
243	Bool enabled;
244
245	/**
246	* Active mode
247	*
248	* This reflects the mode as set in the CRTC currently
249	* It will be cleared when the VT is not active or
250	* during server startup
251	*/
252	DisplayModeRec mode;
253	Rotation rotation;
254	PixmapPtr rotatedPixmap;
255	void *rotatedData;
256
257	/**
258	* Position on screen
259	*
260	* Locates this CRTC within the frame buffer
261	*/
262	int x, y;
263
264	/**
265	* Desired mode
266	*
267	* This is set to the requested mode, independent of
268	* whether the VT is active. In particular, it receives
269	* the startup configured mode and saves the active mode
270	* on VT switch.
271	*/
272	DisplayModeRec desiredMode;
273	Rotation desiredRotation;
274	int desiredX, desiredY;
275
276	/** crtc-specific functions */
277	const xf86CrtcFuncsRec *funcs;
278
279	/**
280	* Driver private
281	*
282	* Holds driver-private information
283	*/
284	void *driver_private;
285
286	#ifdef RANDR_12_INTERFACE
287	/**
288	* RandR crtc
289	*
290	* When RandR 1.2 is available, this
291	* points at the associated crtc object
292	*/
293	RRCrtcPtr randr_crtc;
294	#else
295	void *randr_crtc;
296	#endif
297
298	/**
299	* Current cursor is ARGB
300	*/
301	Bool cursor_argb;
302	/**
303	* Track whether cursor is within CRTC range
304	*/
305	Bool cursor_in_range;
306	/**
307	* Track state of cursor associated with this CRTC
308	*/
309	Bool cursor_shown;
310
311	/**
312	* Current transformation matrix
313	*/
314	PictTransform crtc_to_framebuffer;
315	struct pict_f_transform f_crtc_to_framebuffer;
316	struct pict_f_transform f_framebuffer_to_crtc;
317	PictFilterPtr filter;
318	xFixed *params;
319	int nparams;
320	int filter_width;
321	int filter_height;
322	Bool transform_in_use;
323	RRTransformRec transform;
324	Bool transformPresent;
325	RRTransformRec desiredTransform;
326	Bool desiredTransformPresent;
327	/**
328	* Bounding box in screen space
329	*/
330	BoxRec bounds;
331	/**
332	* Panning:
333	* TotalArea: total panning area, larger than CRTC's size
334	* TrackingArea: Area of the pointer for which the CRTC is panned
335	* border: Borders of the displayed CRTC area which induces panning if the pointer reaches them
336	*/
337	BoxRec panningTotalArea;
338	BoxRec panningTrackingArea;
339	INT16 panningBorder[4];
340	/**
341	* Clear the shadow
342	*/
343	Bool shadowClear;
344	};
345
346	typedef struct _xf86OutputFuncs {
347	/**
348	* Called to allow the output a chance to create properties after the
349	* RandR objects have been created.
350	*/
351	void
352	(*create_resources)(xf86OutputPtr output);
353
354	/**
355	* Turns the output on/off, or sets intermediate power levels if available.
356	*
357	* Unsupported intermediate modes drop to the lower power setting. If the
358	* mode is DPMSModeOff, the output must be disabled, as the DPLL may be
359	* disabled afterwards.
360	*/
361	void
362	(*dpms)(xf86OutputPtr output,
363	int mode);
364
365	/**
366	* Saves the output's state for restoration on VT switch.
367	*/
368	void
369	(*save)(xf86OutputPtr output);
370
371	/**
372	* Restore's the output's state at VT switch.
373	*/
374	void
375	(*restore)(xf86OutputPtr output);
376
377	/**
378	* Callback for testing a video mode for a given output.
379	*
380	* This function should only check for cases where a mode can't be supported
381	* on the output specifically, and not represent generic CRTC limitations.
382	*
383	* \return MODE_OK if the mode is valid, or another MODE_* otherwise.
384	*/
385	int
386	(*mode_valid)(xf86OutputPtr output,
387	DisplayModePtr pMode);
388
389	/**
390	* Callback to adjust the mode to be set in the CRTC.
391	*
392	* This allows an output to adjust the clock or even the entire set of
393	* timings, which is used for panels with fixed timings or for
394	* buses with clock limitations.
395	*/
396	Bool
397	(*mode_fixup)(xf86OutputPtr output,
398	DisplayModePtr mode,
399	DisplayModePtr adjusted_mode);
400
401	/**
402	* Callback for preparing mode changes on an output
403	*/
404	void
405	(*prepare)(xf86OutputPtr output);
406
407	/**
408	* Callback for committing mode changes on an output
409	*/
410	void
411	(*commit)(xf86OutputPtr output);
412
413	/**
414	* Callback for setting up a video mode after fixups have been made.
415	*
416	* This is only called while the output is disabled. The dpms callback
417	* must be all that's necessary for the output, to turn the output on
418	* after this function is called.
419	*/
420	void
421	(*mode_set)(xf86OutputPtr output,
422	DisplayModePtr mode,
423	DisplayModePtr adjusted_mode);
424
425	/**
426	* Probe for a connected output, and return detect_status.
427	*/
428	xf86OutputStatus
429	(*detect)(xf86OutputPtr output);
430
431	/**
432	* Query the device for the modes it provides.
433	*
434	* This function may also update MonInfo, mm_width, and mm_height.
435	*
436	* \return singly-linked list of modes or NULL if no modes found.
437	*/
438	DisplayModePtr
439	(*get_modes)(xf86OutputPtr output);
440
441	#ifdef RANDR_12_INTERFACE
442	/**
443	* Callback when an output's property has changed.
444	*/
445	Bool
446	(*set_property)(xf86OutputPtr output,
447	Atom property,
448	RRPropertyValuePtr value);
449	#endif
450	#ifdef RANDR_13_INTERFACE
451	/**
452	* Callback to get an updated property value
453	*/
454	Bool
455	(*get_property)(xf86OutputPtr output,
456	Atom property);
457	#endif
458	#ifdef RANDR_GET_CRTC_INTERFACE
459	/**
460	* Callback to get current CRTC for a given output
461	*/
462	xf86CrtcPtr
463	(*get_crtc)(xf86OutputPtr output);
464	#endif
465	/**
466	* Clean up driver-specific bits of the output
467	*/
468	void
469	(*destroy) (xf86OutputPtr output);
470	} xf86OutputFuncsRec, *xf86OutputFuncsPtr;
471
472
473	#define XF86_OUTPUT_VERSION 2
474
475	struct _xf86Output {
476	/**
477	* ABI versioning
478	*/
479	int version;
480
481	/**
482	* Associated ScrnInfo
483	*/
484	ScrnInfoPtr scrn;
485
486	/**
487	* Currently connected crtc (if any)
488	*
489	* If this output is not in use, this field will be NULL.
490	*/
491	xf86CrtcPtr crtc;
492
493	/**
494	* Possible CRTCs for this output as a mask of crtc indices
495	*/
496	CARD32 possible_crtcs;
497
498	/**
499	* Possible outputs to share the same CRTC as a mask of output indices
500	*/
501	CARD32 possible_clones;
502
503	/**
504	* Whether this output can support interlaced modes
505	*/
506	Bool interlaceAllowed;
507
508	/**
509	* Whether this output can support double scan modes
510	*/
511	Bool doubleScanAllowed;
512
513	/**
514	* List of available modes on this output.
515	*
516	* This should be the list from get_modes(), plus perhaps additional
517	* compatible modes added later.
518	*/
519	DisplayModePtr probed_modes;
520
521	/**
522	* Options parsed from the related monitor section
523	*/
524	OptionInfoPtr options;
525
526	/**
527	* Configured monitor section
528	*/
529	XF86ConfMonitorPtr conf_monitor;
530
531	/**
532	* Desired initial position
533	*/
534	int initial_x, initial_y;
535
536	/**
537	* Desired initial rotation
538	*/
539	Rotation initial_rotation;
540
541	/**
542	* Current connection status
543	*
544	* This indicates whether a monitor is known to be connected
545	* to this output or not, or whether there is no way to tell
546	*/
547	xf86OutputStatus status;
548
549	/** EDID monitor information */
550	xf86MonPtr MonInfo;
551
552	/** subpixel order */
553	int subpixel_order;
554
555	/** Physical size of the currently attached output device. */
556	int mm_width, mm_height;
557
558	/** Output name */
559	char *name;
560
561	/** output-specific functions */
562	const xf86OutputFuncsRec *funcs;
563
564	/** driver private information */
565	void *driver_private;
566
567	/** Whether to use the old per-screen Monitor config section */
568	Bool use_screen_monitor;
569
570	#ifdef RANDR_12_INTERFACE
571	/**
572	* RandR 1.2 output structure.
573	*
574	* When RandR 1.2 is available, this points at the associated
575	* RandR output structure and is created when this output is created
576	*/
577	RROutputPtr randr_output;
578	#else
579	void *randr_output;
580	#endif
581	/** Desired initial panning */
582	BoxRec initialTotalArea;
583	BoxRec initialTrackingArea;
584	INT16 initialBorder[4];
585	};
586
587	typedef struct _xf86CrtcConfigFuncs {
588	/**
589	* Requests that the driver resize the screen.
590	*
591	* The driver is responsible for updating scrn->virtualX and scrn->virtualY.
592	* If the requested size cannot be set, the driver should leave those values
593	* alone and return FALSE.
594	*
595	* A naive driver that cannot reallocate the screen may simply change
596	* virtual[XY]. A more advanced driver will want to also change the
597	* devPrivate.ptr and devKind of the screen pixmap, update any offscreen
598	* pixmaps it may have moved, and change pScrn->displayWidth.
599	*/
600	Bool
601	(*resize)(ScrnInfoPtr scrn,
602	int width,
603	int height);
604	} xf86CrtcConfigFuncsRec, *xf86CrtcConfigFuncsPtr;
605
606	typedef void (*xf86_crtc_notify_proc_ptr) (ScreenPtr pScreen);
607
608	typedef struct _xf86CrtcConfig {
609	int num_output;
610	xf86OutputPtr *output;
611	/**
612	* compat_output is used whenever we deal
613	* with legacy code that only understands a single
614	* output. pScrn->modes will be loaded from this output,
615	* adjust frame will whack this output, etc.
616	*/
617	int compat_output;
618
619	int num_crtc;
620	xf86CrtcPtr *crtc;
621
622	int minWidth, minHeight;
623	int maxWidth, maxHeight;
624
625	/* For crtc-based rotation */
626	DamagePtr rotation_damage;
627	Bool rotation_damage_registered;
628
629	/* DGA */
630	unsigned int dga_flags;
631	unsigned long dga_address;
632	DGAModePtr dga_modes;
633	int dga_nmode;
634	int dga_width, dga_height, dga_stride;
635	DisplayModePtr dga_save_mode;
636
637	const xf86CrtcConfigFuncsRec *funcs;
638
639	CreateScreenResourcesProcPtr CreateScreenResources;
640
641	CloseScreenProcPtr CloseScreen;
642
643	/* Cursor information */
644	xf86CursorInfoPtr cursor_info;
645	CursorPtr cursor;
646	CARD8 *cursor_image;
647	Bool cursor_on;
648	CARD32 cursor_fg, cursor_bg;
649
650	/**
651	* Options parsed from the related device section
652	*/
653	OptionInfoPtr options;
654
655	Bool debug_modes;
656
657	/* wrap screen BlockHandler for rotation */
658	ScreenBlockHandlerProcPtr BlockHandler;
659
660	/* callback when crtc configuration changes */
661	xf86_crtc_notify_proc_ptr xf86_crtc_notify;
662
663	} xf86CrtcConfigRec, *xf86CrtcConfigPtr;
664
665	extern int xf86CrtcConfigPrivateIndex;
666
667	#define XF86_CRTC_CONFIG_PTR(p) ((xf86CrtcConfigPtr) ((p)->privates[xf86CrtcConfigPrivateIndex].ptr))
668
669	/*
670	* Initialize xf86CrtcConfig structure
671	*/
672
673	void
674	xf86CrtcConfigInit (ScrnInfoPtr scrn,
675	const xf86CrtcConfigFuncsRec *funcs);
676
677	void
678	xf86CrtcSetSizeRange (ScrnInfoPtr scrn,
679	int minWidth, int minHeight,
680	int maxWidth, int maxHeight);
681
682	/*
683	* Crtc functions
684	*/
685	xf86CrtcPtr
686	xf86CrtcCreate (ScrnInfoPtr scrn,
687	const xf86CrtcFuncsRec *funcs);
688
689	void
690	xf86CrtcDestroy (xf86CrtcPtr crtc);
691
692
693	/**
694	* Sets the given video mode on the given crtc
695	*/
696
697	Bool
698	xf86CrtcSetModeTransform (xf86CrtcPtr crtc, DisplayModePtr mode, Rotation rotation,
699	RRTransformPtr transform, int x, int y);
700
701	Bool
702	xf86CrtcSetMode (xf86CrtcPtr crtc, DisplayModePtr mode, Rotation rotation,
703	int x, int y);
704
705	void
706	xf86CrtcSetOrigin (xf86CrtcPtr crtc, int x, int y);
707
708	/*
709	* Assign crtc rotation during mode set
710	*/
711	Bool
712	xf86CrtcRotate (xf86CrtcPtr crtc);
713
714	/*
715	* Clean up any rotation data, used when a crtc is turned off
716	* as well as when rotation is disabled.
717	*/
718	void
719	xf86RotateDestroy (xf86CrtcPtr crtc);
720
721	/*
722	* free shadow memory allocated for all crtcs
723	*/
724	void
725	xf86RotateFreeShadow(ScrnInfoPtr pScrn);
726
727	/*
728	* Clean up rotation during CloseScreen
729	*/
730	void
731	xf86RotateCloseScreen (ScreenPtr pScreen);
732
733	/**
734	* Return whether any output is assigned to the crtc
735	*/
736	Bool
737	xf86CrtcInUse (xf86CrtcPtr crtc);
738
739	/*
740	* Output functions
741	*/
742	xf86OutputPtr
743	xf86OutputCreate (ScrnInfoPtr scrn,
744	const xf86OutputFuncsRec *funcs,
745	const char *name);
746
747	void
748	xf86OutputUseScreenMonitor (xf86OutputPtr output, Bool use_screen_monitor);
749
750	Bool
751	xf86OutputRename (xf86OutputPtr output, const char *name);
752
753	void
754	xf86OutputDestroy (xf86OutputPtr output);
755
756	void
757	xf86ProbeOutputModes (ScrnInfoPtr pScrn, int maxX, int maxY);
758
759	void
760	xf86SetScrnInfoModes (ScrnInfoPtr pScrn);
761
762	#ifdef RANDR_13_INTERFACE
763	int
764	#else
765	Bool
766	#endif
767	xf86CrtcScreenInit (ScreenPtr pScreen);
768
769	Bool
770	xf86InitialConfiguration (ScrnInfoPtr pScrn, Bool canGrow);
771
772	void
773	xf86DPMSSet(ScrnInfoPtr pScrn, int PowerManagementMode, int flags);
774
775	Bool
776	xf86SaveScreen(ScreenPtr pScreen, int mode);
777
778	void
779	xf86DisableUnusedFunctions(ScrnInfoPtr pScrn);
780
781	DisplayModePtr
782	xf86OutputFindClosestMode (xf86OutputPtr output, DisplayModePtr desired);
783
784	Bool
785	xf86SetSingleMode (ScrnInfoPtr pScrn, DisplayModePtr desired, Rotation rotation);
786
787	/**
788	* Set the EDID information for the specified output
789	*/
790	void
791	xf86OutputSetEDID (xf86OutputPtr output, xf86MonPtr edid_mon);
792
793	/**
794	* Return the list of modes supported by the EDID information
795	* stored in 'output'
796	*/
797	DisplayModePtr
798	xf86OutputGetEDIDModes (xf86OutputPtr output);
799
800	xf86MonPtr
801	xf86OutputGetEDID (xf86OutputPtr output, I2CBusPtr pDDCBus);
802
803	/**
804	* Initialize dga for this screen
805	*/
806
807	Bool
808	xf86DiDGAInit (ScreenPtr pScreen, unsigned long dga_address);
809
810	/**
811	* Re-initialize dga for this screen (as when the set of modes changes)
812	*/
813
814	Bool
815	xf86DiDGAReInit (ScreenPtr pScreen);
816
817	/*
818	* Set the subpixel order reported for the screen using
819	* the information from the outputs
820	*/
821
822	void
823	xf86CrtcSetScreenSubpixelOrder (ScreenPtr pScreen);
824
825	/*
826	* Get a standard string name for a connector type
827	*/
828	char *
829	xf86ConnectorGetName(xf86ConnectorType connector);
830
831	/*
832	* Using the desired mode information in each crtc, set
833	* modes (used in EnterVT functions, or at server startup)
834	*/
835
836	Bool
837	xf86SetDesiredModes (ScrnInfoPtr pScrn);
838
839	/**
840	* Initialize the CRTC-based cursor code. CRTC function vectors must
841	* contain relevant cursor setting functions.
842	*
843	* Driver should call this from ScreenInit function
844	*/
845	Bool
846	xf86_cursors_init (ScreenPtr screen, int max_width, int max_height, int flags);
847
848	/**
849	* Called when anything on the screen is reconfigured.
850	*
851	* Reloads cursor images as needed, then adjusts cursor positions.
852	*
853	* Driver should call this from crtc commit function.
854	*/
855	void
856	xf86_reload_cursors (ScreenPtr screen);
857
858	/**
859	* Called from EnterVT to turn the cursors back on
860	*/
861	void
862	xf86_show_cursors (ScrnInfoPtr scrn);
863
864	/**
865	* Called by the driver to turn cursors off
866	*/
867	void
868	xf86_hide_cursors (ScrnInfoPtr scrn);
869
870	/**
871	* Clean up CRTC-based cursor code. Driver must call this at CloseScreen time.
872	*/
873	void
874	xf86_cursors_fini (ScreenPtr screen);
875
876	/*
877	* For overlay video, compute the relevant CRTC and
878	* clip video to that.
879	* wraps xf86XVClipVideoHelper()
880	*/
881
882	Bool
883	xf86_crtc_clip_video_helper(ScrnInfoPtr pScrn,
884	xf86CrtcPtr *crtc_ret,
885	xf86CrtcPtr desired_crtc,
886	BoxPtr dst,
887	INT32 *xa,
888	INT32 *xb,
889	INT32 *ya,
890	INT32 *yb,
891	RegionPtr reg,
892	INT32 width,
893	INT32 height);
894
895	xf86_crtc_notify_proc_ptr
896	xf86_wrap_crtc_notify (ScreenPtr pScreen, xf86_crtc_notify_proc_ptr new);
897
898	void
899	xf86_unwrap_crtc_notify(ScreenPtr pScreen, xf86_crtc_notify_proc_ptr old);
900
901	void
902	xf86_crtc_notify(ScreenPtr pScreen);
903
904	/**
905	* Panning
906	*/
907	Bool
908	xf86_crtc_get_panning(ScrnInfoPtr pScrn,
909	BoxPtr totalArea,
910	BoxPtr TrackingArea,
911	INT16 *border);
912
913	Bool
914	xf86_crtc_set_panning(ScrnInfoPtr pScrn,
915	BoxPtr totalArea,
916	BoxPtr TrackingArea,
917	INT16 *border);
918
919	#endif /* _XF86CRTC_H_ */

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source: vbox/trunk/src/VBox/Additions/x11/x11include/xorg-server-1.6.0/xf86Crtc.h@ 17473

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