diff options
author | marha <marha@users.sourceforge.net> | 2011-02-25 07:31:13 +0000 |
---|---|---|
committer | marha <marha@users.sourceforge.net> | 2011-02-25 07:31:13 +0000 |
commit | a7971771a8ab6f6f76a2a8e482dbb3a30901af1c (patch) | |
tree | 97daee18ddace6f04744d7f4fa6b00aa5a59f4b7 /X11 | |
parent | fbb8c9a149047ccb27e749053c83acf94dedcbf9 (diff) | |
download | vcxsrv-a7971771a8ab6f6f76a2a8e482dbb3a30901af1c.tar.gz vcxsrv-a7971771a8ab6f6f76a2a8e482dbb3a30901af1c.tar.bz2 vcxsrv-a7971771a8ab6f6f76a2a8e482dbb3a30901af1c.zip |
xserver randrproto mesa xkeyboard-config git update 25 Feb 2011
Diffstat (limited to 'X11')
-rw-r--r-- | X11/extensions/randr.h | 358 | ||||
-rw-r--r-- | X11/extensions/randrproto.h | 1846 | ||||
-rw-r--r-- | X11/extensions/randrproto.txt | 5200 |
3 files changed, 3732 insertions, 3672 deletions
diff --git a/X11/extensions/randr.h b/X11/extensions/randr.h index fec7f4f4e..41aedd5de 100644 --- a/X11/extensions/randr.h +++ b/X11/extensions/randr.h @@ -1,173 +1,185 @@ -/*
- * 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, HP Labs, Hewlett-Packard, Inc.
- * Keith Packard, Intel Corporation
- */
-
-#ifndef _RANDR_H_
-#define _RANDR_H_
-
-typedef unsigned short Rotation;
-typedef unsigned short SizeID;
-typedef unsigned short SubpixelOrder;
-typedef unsigned short Connection;
-typedef unsigned short XRandrRotation;
-typedef unsigned short XRandrSizeID;
-typedef unsigned short XRandrSubpixelOrder;
-typedef unsigned long XRandrModeFlags;
-
-#define RANDR_NAME "RANDR"
-#define RANDR_MAJOR 1
-#define RANDR_MINOR 4
-
-#define RRNumberErrors 3
-#define RRNumberEvents 2
-#define RRNumberRequests 37
-
-#define X_RRQueryVersion 0
-/* we skip 1 to make old clients fail pretty immediately */
-#define X_RROldGetScreenInfo 1
-#define X_RR1_0SetScreenConfig 2
-/* V1.0 apps share the same set screen config request id */
-#define X_RRSetScreenConfig 2
-#define X_RROldScreenChangeSelectInput 3
-/* 3 used to be ScreenChangeSelectInput; deprecated */
-#define X_RRSelectInput 4
-#define X_RRGetScreenInfo 5
-
-/* V1.2 additions */
-#define X_RRGetScreenSizeRange 6
-#define X_RRSetScreenSize 7
-#define X_RRGetScreenResources 8
-#define X_RRGetOutputInfo 9
-#define X_RRListOutputProperties 10
-#define X_RRQueryOutputProperty 11
-#define X_RRConfigureOutputProperty 12
-#define X_RRChangeOutputProperty 13
-#define X_RRDeleteOutputProperty 14
-#define X_RRGetOutputProperty 15
-#define X_RRCreateMode 16
-#define X_RRDestroyMode 17
-#define X_RRAddOutputMode 18
-#define X_RRDeleteOutputMode 19
-#define X_RRGetCrtcInfo 20
-#define X_RRSetCrtcConfig 21
-#define X_RRGetCrtcGammaSize 22
-#define X_RRGetCrtcGamma 23
-#define X_RRSetCrtcGamma 24
-
-/* V1.3 additions */
-#define X_RRGetScreenResourcesCurrent 25
-#define X_RRSetCrtcTransform 26
-#define X_RRGetCrtcTransform 27
-#define X_RRGetPanning 28
-#define X_RRSetPanning 29
-#define X_RRSetOutputPrimary 30
-#define X_RRGetOutputPrimary 31
-
-#define RRTransformUnit (1L << 0)
-#define RRTransformScaleUp (1L << 1)
-#define RRTransformScaleDown (1L << 2)
-#define RRTransformProjective (1L << 3)
-
-/* V1.4 additions */
-#define X_RRQueryScanoutPixmaps 32
-#define X_RRCreateScanoutPixmap 33
-#define X_RRSetCrtcSpriteTransform 34
-#define X_RRGetCrtcSpriteTransform 35
-#define X_RRSetCrtcConfigs 36
-
-/* Event selection bits */
-#define RRScreenChangeNotifyMask (1L << 0)
-/* V1.2 additions */
-#define RRCrtcChangeNotifyMask (1L << 1)
-#define RROutputChangeNotifyMask (1L << 2)
-#define RROutputPropertyNotifyMask (1L << 3)
-
-/* Event codes */
-#define RRScreenChangeNotify 0
-/* V1.2 additions */
-#define RRNotify 1
-/* RRNotify Subcodes */
-#define RRNotify_CrtcChange 0
-#define RRNotify_OutputChange 1
-#define RRNotify_OutputProperty 2
-
-/* used in the rotation field; rotation and reflection in 0.1 proto. */
-#define RR_Rotate_0 1
-#define RR_Rotate_90 2
-#define RR_Rotate_180 4
-#define RR_Rotate_270 8
-
-/* new in 1.0 protocol, to allow reflection of screen */
-
-#define RR_Reflect_X 16
-#define RR_Reflect_Y 32
-
-#define RRSetConfigSuccess 0
-#define RRSetConfigInvalidConfigTime 1
-#define RRSetConfigInvalidTime 2
-#define RRSetConfigFailed 3
-
-/* new in 1.2 protocol */
-
-#define RR_HSyncPositive 0x00000001
-#define RR_HSyncNegative 0x00000002
-#define RR_VSyncPositive 0x00000004
-#define RR_VSyncNegative 0x00000008
-#define RR_Interlace 0x00000010
-#define RR_DoubleScan 0x00000020
-#define RR_CSync 0x00000040
-#define RR_CSyncPositive 0x00000080
-#define RR_CSyncNegative 0x00000100
-#define RR_HSkewPresent 0x00000200
-#define RR_BCast 0x00000400
-#define RR_PixelMultiplex 0x00000800
-#define RR_DoubleClock 0x00001000
-#define RR_ClockDivideBy2 0x00002000
-
-#define RR_Connected 0
-#define RR_Disconnected 1
-#define RR_UnknownConnection 2
-
-#define BadRROutput 0
-#define BadRRCrtc 1
-#define BadRRMode 2
-
-/* new in 1.4 protocol */
-#define RR_CurrentScanoutPixmap 1 /* current scanout pixmap in RRSetCrtcConfigs */
-
-/* Conventional RandR output properties */
-
-#define RR_PROPERTY_BACKLIGHT "Backlight"
-#define RR_PROPERTY_RANDR_EDID "EDID"
-#define RR_PROPERTY_SIGNAL_FORMAT "SignalFormat"
-#define RR_PROPERTY_SIGNAL_PROPERTIES "SignalProperties"
-#define RR_PROPERTY_CONNECTOR_TYPE "ConnectorType"
-#define RR_PROPERTY_CONNECTOR_NUMBER "ConnectorNumber"
-#define RR_PROPERTY_COMPATIBILITY_LIST "CompatibilityList"
-#define RR_PROPERTY_CLONE_LIST "CloneList"
-
-#endif /* _RANDR_H_ */
+/* + * 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, HP Labs, Hewlett-Packard, Inc. + * Keith Packard, Intel Corporation + */ + +#ifndef _RANDR_H_ +#define _RANDR_H_ + +typedef unsigned short Rotation; +typedef unsigned short SizeID; +typedef unsigned short SubpixelOrder; +typedef unsigned short Connection; +typedef unsigned short XRandrRotation; +typedef unsigned short XRandrSizeID; +typedef unsigned short XRandrSubpixelOrder; +typedef unsigned long XRandrModeFlags; + +#define RANDR_NAME "RANDR" +#define RANDR_MAJOR 1 +#define RANDR_MINOR 4 + +#define RRNumberErrors 3 +#define RRNumberEvents 2 +#define RRNumberRequests 37 + +#define X_RRQueryVersion 0 +/* we skip 1 to make old clients fail pretty immediately */ +#define X_RROldGetScreenInfo 1 +#define X_RR1_0SetScreenConfig 2 +/* V1.0 apps share the same set screen config request id */ +#define X_RRSetScreenConfig 2 +#define X_RROldScreenChangeSelectInput 3 +/* 3 used to be ScreenChangeSelectInput; deprecated */ +#define X_RRSelectInput 4 +#define X_RRGetScreenInfo 5 + +/* V1.2 additions */ +#define X_RRGetScreenSizeRange 6 +#define X_RRSetScreenSize 7 +#define X_RRGetScreenResources 8 +#define X_RRGetOutputInfo 9 +#define X_RRListOutputProperties 10 +#define X_RRQueryOutputProperty 11 +#define X_RRConfigureOutputProperty 12 +#define X_RRChangeOutputProperty 13 +#define X_RRDeleteOutputProperty 14 +#define X_RRGetOutputProperty 15 +#define X_RRCreateMode 16 +#define X_RRDestroyMode 17 +#define X_RRAddOutputMode 18 +#define X_RRDeleteOutputMode 19 +#define X_RRGetCrtcInfo 20 +#define X_RRSetCrtcConfig 21 +#define X_RRGetCrtcGammaSize 22 +#define X_RRGetCrtcGamma 23 +#define X_RRSetCrtcGamma 24 + +/* V1.3 additions */ +#define X_RRGetScreenResourcesCurrent 25 +#define X_RRSetCrtcTransform 26 +#define X_RRGetCrtcTransform 27 +#define X_RRGetPanning 28 +#define X_RRSetPanning 29 +#define X_RRSetOutputPrimary 30 +#define X_RRGetOutputPrimary 31 + +#define RRTransformUnit (1L << 0) +#define RRTransformScaleUp (1L << 1) +#define RRTransformScaleDown (1L << 2) +#define RRTransformProjective (1L << 3) + +/* V1.4 additions */ + +#define RR_SetScreenPixmapSize (1 << 0) +#define RR_SetScreenSize (1 << 1) +#define RR_SetScreenSizeInMillimeters (1 << 2) +#define RR_SetScreenCrtcs (1 << 3) + +#define RR_SetCrtcPosition (1 << 4) +#define RR_SetCrtcMode (1 << 5) +#define RR_SetCrtcRotation (1 << 6) +#define RR_SetCrtcOutputs (1 << 7) +#define RR_SetCrtcSpritePositionTransform (1 << 8) +#define RR_SetCrtcSpriteImageTransform (1 << 9) +#define RR_SetCrtcPixmap (1 << 10) +#define RR_SetCrtcPixmapPosition (1 << 11) + +#define X_RRQueryScanoutPixmaps 32 +#define X_RRCreateScanoutPixmap 33 +#define X_RRSetCrtcSpriteTransform 34 +#define X_RRGetCrtcSpriteTransform 35 +#define X_RRSetCrtcConfigs 36 + +/* Event selection bits */ +#define RRScreenChangeNotifyMask (1L << 0) +/* V1.2 additions */ +#define RRCrtcChangeNotifyMask (1L << 1) +#define RROutputChangeNotifyMask (1L << 2) +#define RROutputPropertyNotifyMask (1L << 3) + +/* Event codes */ +#define RRScreenChangeNotify 0 +/* V1.2 additions */ +#define RRNotify 1 +/* RRNotify Subcodes */ +#define RRNotify_CrtcChange 0 +#define RRNotify_OutputChange 1 +#define RRNotify_OutputProperty 2 + +/* used in the rotation field; rotation and reflection in 0.1 proto. */ +#define RR_Rotate_0 1 +#define RR_Rotate_90 2 +#define RR_Rotate_180 4 +#define RR_Rotate_270 8 + +/* new in 1.0 protocol, to allow reflection of screen */ + +#define RR_Reflect_X 16 +#define RR_Reflect_Y 32 + +#define RRSetConfigSuccess 0 +#define RRSetConfigInvalidConfigTime 1 +#define RRSetConfigInvalidTime 2 +#define RRSetConfigFailed 3 + +/* new in 1.2 protocol */ + +#define RR_HSyncPositive 0x00000001 +#define RR_HSyncNegative 0x00000002 +#define RR_VSyncPositive 0x00000004 +#define RR_VSyncNegative 0x00000008 +#define RR_Interlace 0x00000010 +#define RR_DoubleScan 0x00000020 +#define RR_CSync 0x00000040 +#define RR_CSyncPositive 0x00000080 +#define RR_CSyncNegative 0x00000100 +#define RR_HSkewPresent 0x00000200 +#define RR_BCast 0x00000400 +#define RR_PixelMultiplex 0x00000800 +#define RR_DoubleClock 0x00001000 +#define RR_ClockDivideBy2 0x00002000 + +#define RR_Connected 0 +#define RR_Disconnected 1 +#define RR_UnknownConnection 2 + +#define BadRROutput 0 +#define BadRRCrtc 1 +#define BadRRMode 2 + +/* Conventional RandR output properties */ + +#define RR_PROPERTY_BACKLIGHT "Backlight" +#define RR_PROPERTY_RANDR_EDID "EDID" +#define RR_PROPERTY_SIGNAL_FORMAT "SignalFormat" +#define RR_PROPERTY_SIGNAL_PROPERTIES "SignalProperties" +#define RR_PROPERTY_CONNECTOR_TYPE "ConnectorType" +#define RR_PROPERTY_CONNECTOR_NUMBER "ConnectorNumber" +#define RR_PROPERTY_COMPATIBILITY_LIST "CompatibilityList" +#define RR_PROPERTY_CLONE_LIST "CloneList" + +#endif /* _RANDR_H_ */ diff --git a/X11/extensions/randrproto.h b/X11/extensions/randrproto.h index 298d4cfad..00bae2d4a 100644 --- a/X11/extensions/randrproto.h +++ b/X11/extensions/randrproto.h @@ -1,922 +1,924 @@ -/*
- * 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
- */
-
-/* note that RANDR 1.0 is incompatible with version 0.0, or 0.1 */
-/* V1.0 removes depth switching from the protocol */
-#ifndef _XRANDRP_H_
-#define _XRANDRP_H_
-
-#include <X11/extensions/randr.h>
-#include <X11/extensions/renderproto.h>
-
-#define Window CARD32
-#define Drawable CARD32
-#define Font CARD32
-#define Pixmap CARD32
-#define Cursor CARD32
-#define Colormap CARD32
-#define GContext CARD32
-#define Atom CARD32
-#define Time CARD32
-#define KeyCode CARD8
-#define KeySym CARD32
-#define RROutput CARD32
-#define RRMode CARD32
-#define RRCrtc CARD32
-#define RRModeFlags CARD32
-#define PictFormat CARD32
-
-#define Rotation CARD16
-#define SizeID CARD16
-#define SubpixelOrder CARD16
-
-/*
- * data structures
- */
-
-typedef struct {
- CARD16 widthInPixels B16;
- CARD16 heightInPixels B16;
- CARD16 widthInMillimeters B16;
- CARD16 heightInMillimeters B16;
-} xScreenSizes;
-#define sz_xScreenSizes 8
-
-/*
- * requests and replies
- */
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- CARD32 majorVersion B32;
- CARD32 minorVersion B32;
-} xRRQueryVersionReq;
-#define sz_xRRQueryVersionReq 12
-
-typedef struct {
- BYTE type; /* X_Reply */
- BYTE pad1;
- CARD16 sequenceNumber B16;
- CARD32 length B32;
- CARD32 majorVersion B32;
- CARD32 minorVersion B32;
- CARD32 pad2 B32;
- CARD32 pad3 B32;
- CARD32 pad4 B32;
- CARD32 pad5 B32;
-} xRRQueryVersionReply;
-#define sz_xRRQueryVersionReply 32
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- Window window B32;
-} xRRGetScreenInfoReq;
-#define sz_xRRGetScreenInfoReq 8
-
-/*
- * the xRRScreenInfoReply structure is followed by:
- *
- * the size information
- */
-
-
-typedef struct {
- BYTE type; /* X_Reply */
- BYTE setOfRotations;
- CARD16 sequenceNumber B16;
- CARD32 length B32;
- Window root B32;
- Time timestamp B32;
- Time configTimestamp B32;
- CARD16 nSizes B16;
- SizeID sizeID B16;
- Rotation rotation B16;
- CARD16 rate B16;
- CARD16 nrateEnts B16;
- CARD16 pad B16;
-} xRRGetScreenInfoReply;
-#define sz_xRRGetScreenInfoReply 32
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- Drawable drawable B32;
- Time timestamp B32;
- Time configTimestamp B32;
- SizeID sizeID B16;
- Rotation rotation B16;
-} xRR1_0SetScreenConfigReq;
-#define sz_xRR1_0SetScreenConfigReq 20
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- Drawable drawable B32;
- Time timestamp B32;
- Time configTimestamp B32;
- SizeID sizeID B16;
- Rotation rotation B16;
- CARD16 rate B16;
- CARD16 pad B16;
-} xRRSetScreenConfigReq;
-#define sz_xRRSetScreenConfigReq 24
-
-typedef struct {
- BYTE type; /* X_Reply */
- CARD8 status;
- CARD16 sequenceNumber B16;
- CARD32 length B32;
- Time newTimestamp B32;
- Time newConfigTimestamp B32;
- Window root;
- CARD16 subpixelOrder B16;
- CARD16 pad4 B16;
- CARD32 pad5 B32;
- CARD32 pad6 B32;
-} xRRSetScreenConfigReply;
-#define sz_xRRSetScreenConfigReply 32
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- Window window B32;
- CARD16 enable B16;
- CARD16 pad2 B16;
-} xRRSelectInputReq;
-#define sz_xRRSelectInputReq 12
-
-/*
- * Additions for version 1.2
- */
-
-typedef struct _xRRModeInfo {
- RRMode id B32;
- CARD16 width B16;
- CARD16 height B16;
- CARD32 dotClock B32;
- CARD16 hSyncStart B16;
- CARD16 hSyncEnd B16;
- CARD16 hTotal B16;
- CARD16 hSkew B16;
- CARD16 vSyncStart B16;
- CARD16 vSyncEnd B16;
- CARD16 vTotal B16;
- CARD16 nameLength B16;
- RRModeFlags modeFlags B32;
-} xRRModeInfo;
-#define sz_xRRModeInfo 32
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- Window window B32;
-} xRRGetScreenSizeRangeReq;
-#define sz_xRRGetScreenSizeRangeReq 8
-
-typedef struct {
- BYTE type; /* X_Reply */
- CARD8 pad;
- CARD16 sequenceNumber B16;
- CARD32 length B32;
- CARD16 minWidth B16;
- CARD16 minHeight B16;
- CARD16 maxWidth B16;
- CARD16 maxHeight B16;
- CARD32 pad0 B32;
- CARD32 pad1 B32;
- CARD32 pad2 B32;
- CARD32 pad3 B32;
-} xRRGetScreenSizeRangeReply;
-#define sz_xRRGetScreenSizeRangeReply 32
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- Window window B32;
- CARD16 width B16;
- CARD16 height B16;
- CARD32 widthInMillimeters B32;
- CARD32 heightInMillimeters B32;
-} xRRSetScreenSizeReq;
-#define sz_xRRSetScreenSizeReq 20
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- Window window B32;
-} xRRGetScreenResourcesReq;
-#define sz_xRRGetScreenResourcesReq 8
-
-typedef struct {
- BYTE type;
- CARD8 pad;
- CARD16 sequenceNumber B16;
- CARD32 length B32;
- Time timestamp B32;
- Time configTimestamp B32;
- CARD16 nCrtcs B16;
- CARD16 nOutputs B16;
- CARD16 nModes B16;
- CARD16 nbytesNames B16;
- CARD32 pad1 B32;
- CARD32 pad2 B32;
-} xRRGetScreenResourcesReply;
-#define sz_xRRGetScreenResourcesReply 32
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- RROutput output B32;
- Time configTimestamp B32;
-} xRRGetOutputInfoReq;
-#define sz_xRRGetOutputInfoReq 12
-
-typedef struct {
- BYTE type;
- CARD8 status;
- CARD16 sequenceNumber B16;
- CARD32 length B32;
- Time timestamp B32;
- RRCrtc crtc B32;
- CARD32 mmWidth B32;
- CARD32 mmHeight B32;
- CARD8 connection;
- CARD8 subpixelOrder;
- CARD16 nCrtcs B16;
- CARD16 nModes B16;
- CARD16 nPreferred B16;
- CARD16 nClones B16;
- CARD16 nameLength B16;
-} xRRGetOutputInfoReply;
-#define sz_xRRGetOutputInfoReply 36
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- RROutput output B32;
-} xRRListOutputPropertiesReq;
-#define sz_xRRListOutputPropertiesReq 8
-
-typedef struct {
- BYTE type;
- CARD8 pad0;
- CARD16 sequenceNumber B16;
- CARD32 length B32;
- CARD16 nAtoms B16;
- CARD16 pad1 B16;
- CARD32 pad2 B32;
- CARD32 pad3 B32;
- CARD32 pad4 B32;
- CARD32 pad5 B32;
- CARD32 pad6 B32;
-} xRRListOutputPropertiesReply;
-#define sz_xRRListOutputPropertiesReply 32
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- RROutput output B32;
- Atom property B32;
-} xRRQueryOutputPropertyReq;
-#define sz_xRRQueryOutputPropertyReq 12
-
-typedef struct {
- BYTE type;
- BYTE pad0;
- CARD16 sequenceNumber B16;
- CARD32 length B32;
- BOOL pending;
- BOOL range;
- BOOL immutable;
- BYTE pad1;
- CARD32 pad2 B32;
- CARD32 pad3 B32;
- CARD32 pad4 B32;
- CARD32 pad5 B32;
- CARD32 pad6 B32;
-} xRRQueryOutputPropertyReply;
-#define sz_xRRQueryOutputPropertyReply 32
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- RROutput output B32;
- Atom property B32;
- BOOL pending;
- BOOL range;
- CARD16 pad B16;
-} xRRConfigureOutputPropertyReq;
-#define sz_xRRConfigureOutputPropertyReq 16
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- RROutput output B32;
- Atom property B32;
- Atom type B32;
- CARD8 format;
- CARD8 mode;
- CARD16 pad;
- CARD32 nUnits B32;
-} xRRChangeOutputPropertyReq;
-#define sz_xRRChangeOutputPropertyReq 24
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- RROutput output B32;
- Atom property B32;
-} xRRDeleteOutputPropertyReq;
-#define sz_xRRDeleteOutputPropertyReq 12
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- RROutput output B32;
- Atom property B32;
- Atom type B32;
- CARD32 longOffset B32;
- CARD32 longLength B32;
-#ifdef __cplusplus
- BOOL _delete;
-#else
- BOOL delete;
-#endif
- BOOL pending;
- CARD16 pad1 B16;
-} xRRGetOutputPropertyReq;
-#define sz_xRRGetOutputPropertyReq 28
-
-typedef struct {
- BYTE type;
- CARD8 format;
- CARD16 sequenceNumber B16;
- CARD32 length B32;
- Atom propertyType B32;
- CARD32 bytesAfter B32;
- CARD32 nItems B32;
- CARD32 pad1 B32;
- CARD32 pad2 B32;
- CARD32 pad3 B32;
-} xRRGetOutputPropertyReply;
-#define sz_xRRGetOutputPropertyReply 32
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- Window window B32;
- xRRModeInfo modeInfo;
-} xRRCreateModeReq;
-#define sz_xRRCreateModeReq 40
-
-typedef struct {
- BYTE type;
- CARD8 pad0;
- CARD16 sequenceNumber B16;
- CARD32 length B32;
- RRMode mode B32;
- CARD32 pad1 B32;
- CARD32 pad2 B32;
- CARD32 pad3 B32;
- CARD32 pad4 B32;
- CARD32 pad5 B32;
-} xRRCreateModeReply;
-#define sz_xRRCreateModeReply 32
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- RRMode mode B32;
-} xRRDestroyModeReq;
-#define sz_xRRDestroyModeReq 8
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- RROutput output B32;
- RRMode mode B32;
-} xRRAddOutputModeReq;
-#define sz_xRRAddOutputModeReq 12
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- RROutput output B32;
- RRMode mode B32;
-} xRRDeleteOutputModeReq;
-#define sz_xRRDeleteOutputModeReq 12
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- RRCrtc crtc B32;
- Time configTimestamp B32;
-} xRRGetCrtcInfoReq;
-#define sz_xRRGetCrtcInfoReq 12
-
-typedef struct {
- BYTE type;
- CARD8 status;
- CARD16 sequenceNumber B16;
- CARD32 length B32;
- Time timestamp B32;
- INT16 x B16;
- INT16 y B16;
- CARD16 width B16;
- CARD16 height B16;
- RRMode mode B32;
- Rotation rotation B16;
- Rotation rotations B16;
- CARD16 nOutput B16;
- CARD16 nPossibleOutput B16;
-} xRRGetCrtcInfoReply;
-#define sz_xRRGetCrtcInfoReply 32
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- RRCrtc crtc B32;
- Time timestamp B32;
- Time configTimestamp B32;
- INT16 x B16;
- INT16 y B16;
- RRMode mode B32;
- Rotation rotation B16;
- CARD16 pad B16;
-} xRRSetCrtcConfigReq;
-#define sz_xRRSetCrtcConfigReq 28
-
-typedef struct {
- BYTE type;
- CARD8 status;
- CARD16 sequenceNumber B16;
- CARD32 length B32;
- Time newTimestamp B32;
- CARD32 pad1 B32;
- CARD32 pad2 B16;
- CARD32 pad3 B32;
- CARD32 pad4 B32;
- CARD32 pad5 B32;
-} xRRSetCrtcConfigReply;
-#define sz_xRRSetCrtcConfigReply 32
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- RRCrtc crtc B32;
-} xRRGetCrtcGammaSizeReq;
-#define sz_xRRGetCrtcGammaSizeReq 8
-
-typedef struct {
- BYTE type;
- CARD8 status;
- CARD16 sequenceNumber B16;
- CARD32 length B32;
- CARD16 size B16;
- CARD16 pad1 B16;
- CARD32 pad2 B32;
- CARD32 pad3 B32;
- CARD32 pad4 B32;
- CARD32 pad5 B32;
- CARD32 pad6 B32;
-} xRRGetCrtcGammaSizeReply;
-#define sz_xRRGetCrtcGammaSizeReply 32
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- RRCrtc crtc B32;
-} xRRGetCrtcGammaReq;
-#define sz_xRRGetCrtcGammaReq 8
-
-typedef struct {
- BYTE type;
- CARD8 status;
- CARD16 sequenceNumber B16;
- CARD32 length B32;
- CARD16 size B16;
- CARD16 pad1 B16;
- CARD32 pad2 B32;
- CARD32 pad3 B32;
- CARD32 pad4 B32;
- CARD32 pad5 B32;
- CARD32 pad6 B32;
-} xRRGetCrtcGammaReply;
-#define sz_xRRGetCrtcGammaReply 32
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- RRCrtc crtc B32;
- CARD16 size B16;
- CARD16 pad1 B16;
-} xRRSetCrtcGammaReq;
-#define sz_xRRSetCrtcGammaReq 12
-
-/*
- * Additions for V1.3
- */
-
-typedef xRRGetScreenResourcesReq xRRGetScreenResourcesCurrentReq;
-
-#define sz_xRRGetScreenResourcesCurrentReq sz_xRRGetScreenResourcesReq
-
-typedef xRRGetScreenResourcesReply xRRGetScreenResourcesCurrentReply;
-#define sz_xRRGetScreenResourcesCurrentReply sz_xRRGetScreenResourcesReply
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- RRCrtc crtc B32;
- xRenderTransform transform;
- CARD16 nbytesFilter; /* number of bytes in filter name */
- CARD16 pad B16;
-} xRRSetCrtcTransformReq;
-
-#define sz_xRRSetCrtcTransformReq 48
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- RRCrtc crtc B32;
-} xRRGetCrtcTransformReq;
-
-#define sz_xRRGetCrtcTransformReq 8
-
-typedef struct {
- BYTE type;
- CARD8 status;
- CARD16 sequenceNumber B16;
- CARD32 length B32;
- xRenderTransform pendingTransform;
- BYTE hasTransforms;
- CARD8 pad0;
- CARD16 pad1 B16;
- xRenderTransform currentTransform;
- CARD32 pad2 B32;
- CARD16 pendingNbytesFilter B16; /* number of bytes in filter name */
- CARD16 pendingNparamsFilter B16; /* number of filter params */
- CARD16 currentNbytesFilter B16; /* number of bytes in filter name */
- CARD16 currentNparamsFilter B16; /* number of filter params */
-} xRRGetCrtcTransformReply;
-
-#define sz_xRRGetCrtcTransformReply 96
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- Window window B32;
- RROutput output B32;
-} xRRSetOutputPrimaryReq;
-#define sz_xRRSetOutputPrimaryReq 12
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- Window window B32;
-} xRRGetOutputPrimaryReq;
-#define sz_xRRGetOutputPrimaryReq 8
-
-typedef struct {
- BYTE type;
- CARD8 pad;
- CARD16 sequenceNumber B16;
- CARD32 length B32;
- RROutput output B32;
- CARD32 pad1 B32;
- CARD32 pad2 B32;
- CARD32 pad3 B32;
- CARD32 pad4 B32;
- CARD32 pad5 B32;
-} xRRGetOutputPrimaryReply;
-#define sz_xRRGetOutputPrimaryReply 32
-
-/*
- * Additions for 1.4
- */
-
-typedef struct {
- PictFormat format B32;
- CARD16 maxWidth B16, maxHeight B16;
- Rotation rotations B16;
- CARD16 pad0 B16;
- CARD32 pad1 B32;
-} xRRScanoutPixmapInfo;
-#define sz_xRRScanoutPixmapInfo 16
-
-typedef struct {
- RRCrtc crtc B32;
- INT16 x B16, y B16;
- RRMode mode B32;
- Rotation rotation B16;
- CARD16 nOutput B16;
- xRenderTransform spritePositionTransform;
- xRenderTransform spriteImageTransform;
- Pixmap pixmap B32;
- INT16 xPixmap B16, yPixmap B16;
-} xRRCrtcConfig;
-#define sz_xRRCrtcConfig (2*sz_xRenderTransform + 24)
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- Drawable drawable B32;
-} xRRQueryScanoutPixmapsReq;
-#define sz_xRRQueryScanoutPixmapsReq 8
-
-typedef struct {
- BYTE type;
- CARD8 pad;
- CARD16 sequenceNumber B16;
- CARD32 length B32;
- CARD32 pad0 B32;
- CARD32 pad1 B32;
- CARD32 pad2 B32;
- CARD32 pad3 B32;
- CARD32 pad4 B32;
- CARD32 pad5 B32;
-} xRRQueryScanoutPixmapsReply;
-#define sz_xRRQueryScanoutPixmapsReply 32
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- Pixmap pid B32;
- Drawable drawable B32;
- CARD16 width B16, height B16;
- PictFormat format B32;
- Rotation rotations B16;
- CARD16 pad B16;
-} xRRCreateScanoutPixmapReq;
-#define sz_xRRCreateScanoutPixmapReq 24
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- RRCrtc crtc B32;
- xRenderTransform positionTransform;
- xRenderTransform imageTransform;
-} xRRSetCrtcSpriteTransformReq;
-#define sz_xRRSetCrtcSpriteTransformReq (2*sz_xRenderTransform + 8)
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- RRCrtc crtc B32;
-} xRRGetCrtcSpriteTransformReq;
-#define sz_xRRGetCrtcSpriteTransformReq 8
-
-typedef struct {
- BYTE type;
- CARD8 pad;
- CARD16 sequenceNumber B16;
- CARD32 length B32;
- xRenderTransform positionTransform;
- xRenderTransform imageTransform;
-} xRRGetCrtcSpriteTransformReply;
-#define sz_xRRGetCrtcSpriteTransformReply (2*sz_xRenderTransform + 8)
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- Drawable drawable B32;
- CARD16 screenPixmapWidth B16, screenPixmapHeight B16;
- CARD16 screenWidth B16, screenHeight B16;
- CARD32 widthInMillimeters B32;
- CARD32 heightInMillimeters B32;
- CARD16 nConfigs B16;
- CARD16 pad0 B16;
- CARD32 pad1 B32;
-} xRRSetCrtcConfigsReq;
-#define sz_xRRSetCrtcConfigsReq 32
-
-typedef struct {
- BYTE type;
- CARD8 status;
- CARD16 sequenceNumber B16;
- CARD32 length B32;
- CARD32 pad0 B32;
- CARD32 pad1 B32;
- CARD32 pad2 B16;
- CARD32 pad3 B32;
- CARD32 pad4 B32;
- CARD32 pad5 B32;
-} xRRSetCrtcConfigsReply;
-#define sz_xRRSetCrtcConfigsReply 32
-
-/*
- * event
- */
-typedef struct {
- CARD8 type; /* always evBase + ScreenChangeNotify */
- CARD8 rotation; /* new rotation */
- CARD16 sequenceNumber B16;
- Time timestamp B32; /* time screen was changed */
- Time configTimestamp B32; /* time config data was changed */
- Window root B32; /* root window */
- Window window B32; /* window requesting notification */
- SizeID sizeID B16; /* new size ID */
- CARD16 subpixelOrder B16; /* subpixel order */
- CARD16 widthInPixels B16; /* new size */
- CARD16 heightInPixels B16;
- CARD16 widthInMillimeters B16;
- CARD16 heightInMillimeters B16;
-} xRRScreenChangeNotifyEvent;
-#define sz_xRRScreenChangeNotifyEvent 32
-
-typedef struct {
- CARD8 type; /* always evBase + RRNotify */
- CARD8 subCode; /* RRNotify_CrtcChange */
- CARD16 sequenceNumber B16;
- Time timestamp B32; /* time crtc was changed */
- Window window B32; /* window requesting notification */
- RRCrtc crtc B32; /* affected CRTC */
- RRMode mode B32; /* current mode */
- CARD16 rotation B16; /* rotation and reflection */
- CARD16 pad1 B16; /* unused */
- INT16 x B16; /* new location */
- INT16 y B16;
- CARD16 width B16; /* new size */
- CARD16 height B16;
-} xRRCrtcChangeNotifyEvent;
-#define sz_xRRCrtcChangeNotifyEvent 32
-
-typedef struct {
- CARD8 type; /* always evBase + RRNotify */
- CARD8 subCode; /* RRNotify_OutputChange */
- CARD16 sequenceNumber B16;
- Time timestamp B32; /* time output was changed */
- Time configTimestamp B32; /* time config was changed */
- Window window B32; /* window requesting notification */
- RROutput output B32; /* affected output */
- RRCrtc crtc B32; /* current crtc */
- RRMode mode B32; /* current mode */
- CARD16 rotation B16; /* rotation and reflection */
- CARD8 connection; /* connection status */
- CARD8 subpixelOrder; /* subpixel order */
-} xRROutputChangeNotifyEvent;
-#define sz_xRROutputChangeNotifyEvent 32
-
-typedef struct {
- CARD8 type; /* always evBase + RRNotify */
- CARD8 subCode; /* RRNotify_OutputProperty */
- CARD16 sequenceNumber B16;
- Window window B32; /* window requesting notification */
- RROutput output B32; /* affected output */
- Atom atom B32; /* property name */
- Time timestamp B32; /* time crtc was changed */
- CARD8 state; /* NewValue or Deleted */
- CARD8 pad1;
- CARD16 pad2 B16;
- CARD32 pad3 B32;
- CARD32 pad4 B32;
-} xRROutputPropertyNotifyEvent;
-#define sz_xRROutputPropertyNotifyEvent 32
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- RRCrtc crtc B32;
-} xRRGetPanningReq;
-#define sz_xRRGetPanningReq 8
-
-typedef struct {
- BYTE type;
- CARD8 status;
- CARD16 sequenceNumber B16;
- CARD32 length B32;
- Time timestamp B32;
- CARD16 left B16;
- CARD16 top B16;
- CARD16 width B16;
- CARD16 height B16;
- CARD16 track_left B16;
- CARD16 track_top B16;
- CARD16 track_width B16;
- CARD16 track_height B16;
- INT16 border_left B16;
- INT16 border_top B16;
- INT16 border_right B16;
- INT16 border_bottom B16;
-} xRRGetPanningReply;
-#define sz_xRRGetPanningReply 36
-
-typedef struct {
- CARD8 reqType;
- CARD8 randrReqType;
- CARD16 length B16;
- RRCrtc crtc B32;
- Time timestamp B32;
- CARD16 left B16;
- CARD16 top B16;
- CARD16 width B16;
- CARD16 height B16;
- CARD16 track_left B16;
- CARD16 track_top B16;
- CARD16 track_width B16;
- CARD16 track_height B16;
- INT16 border_left B16;
- INT16 border_top B16;
- INT16 border_right B16;
- INT16 border_bottom B16;
-} xRRSetPanningReq;
-#define sz_xRRSetPanningReq 36
-
-typedef struct {
- BYTE type;
- CARD8 status;
- CARD16 sequenceNumber B16;
- CARD32 length B32;
- Time newTimestamp B32;
- CARD32 pad1 B32;
- CARD32 pad2 B32;
- CARD32 pad3 B32;
- CARD32 pad4 B32;
- CARD32 pad5 B32;
-} xRRSetPanningReply;
-#define sz_xRRSetPanningReply 32
-
-#undef PictFormat
-#undef RRModeFlags
-#undef RRCrtc
-#undef RRMode
-#undef RROutput
-#undef RRMode
-#undef RRCrtc
-#undef Drawable
-#undef Window
-#undef Font
-#undef Pixmap
-#undef Cursor
-#undef Colormap
-#undef GContext
-#undef Atom
-#undef Time
-#undef KeyCode
-#undef KeySym
-#undef Rotation
-#undef SizeID
-#undef SubpixelOrder
-
-#endif /* _XRANDRP_H_ */
+/* + * 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 + */ + +/* note that RANDR 1.0 is incompatible with version 0.0, or 0.1 */ +/* V1.0 removes depth switching from the protocol */ +#ifndef _XRANDRP_H_ +#define _XRANDRP_H_ + +#include <X11/extensions/randr.h> +#include <X11/extensions/renderproto.h> + +#define Window CARD32 +#define Drawable CARD32 +#define Font CARD32 +#define Pixmap CARD32 +#define Cursor CARD32 +#define Colormap CARD32 +#define GContext CARD32 +#define Atom CARD32 +#define Time CARD32 +#define KeyCode CARD8 +#define KeySym CARD32 +#define RROutput CARD32 +#define RRMode CARD32 +#define RRCrtc CARD32 +#define RRModeFlags CARD32 +#define PictFormat CARD32 + +#define Rotation CARD16 +#define SizeID CARD16 +#define SubpixelOrder CARD16 + +/* + * data structures + */ + +typedef struct { + CARD16 widthInPixels B16; + CARD16 heightInPixels B16; + CARD16 widthInMillimeters B16; + CARD16 heightInMillimeters B16; +} xScreenSizes; +#define sz_xScreenSizes 8 + +/* + * requests and replies + */ + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + CARD32 majorVersion B32; + CARD32 minorVersion B32; +} xRRQueryVersionReq; +#define sz_xRRQueryVersionReq 12 + +typedef struct { + BYTE type; /* X_Reply */ + BYTE pad1; + CARD16 sequenceNumber B16; + CARD32 length B32; + CARD32 majorVersion B32; + CARD32 minorVersion B32; + CARD32 pad2 B32; + CARD32 pad3 B32; + CARD32 pad4 B32; + CARD32 pad5 B32; +} xRRQueryVersionReply; +#define sz_xRRQueryVersionReply 32 + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + Window window B32; +} xRRGetScreenInfoReq; +#define sz_xRRGetScreenInfoReq 8 + +/* + * the xRRScreenInfoReply structure is followed by: + * + * the size information + */ + + +typedef struct { + BYTE type; /* X_Reply */ + BYTE setOfRotations; + CARD16 sequenceNumber B16; + CARD32 length B32; + Window root B32; + Time timestamp B32; + Time configTimestamp B32; + CARD16 nSizes B16; + SizeID sizeID B16; + Rotation rotation B16; + CARD16 rate B16; + CARD16 nrateEnts B16; + CARD16 pad B16; +} xRRGetScreenInfoReply; +#define sz_xRRGetScreenInfoReply 32 + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + Drawable drawable B32; + Time timestamp B32; + Time configTimestamp B32; + SizeID sizeID B16; + Rotation rotation B16; +} xRR1_0SetScreenConfigReq; +#define sz_xRR1_0SetScreenConfigReq 20 + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + Drawable drawable B32; + Time timestamp B32; + Time configTimestamp B32; + SizeID sizeID B16; + Rotation rotation B16; + CARD16 rate B16; + CARD16 pad B16; +} xRRSetScreenConfigReq; +#define sz_xRRSetScreenConfigReq 24 + +typedef struct { + BYTE type; /* X_Reply */ + CARD8 status; + CARD16 sequenceNumber B16; + CARD32 length B32; + Time newTimestamp B32; + Time newConfigTimestamp B32; + Window root; + CARD16 subpixelOrder B16; + CARD16 pad4 B16; + CARD32 pad5 B32; + CARD32 pad6 B32; +} xRRSetScreenConfigReply; +#define sz_xRRSetScreenConfigReply 32 + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + Window window B32; + CARD16 enable B16; + CARD16 pad2 B16; +} xRRSelectInputReq; +#define sz_xRRSelectInputReq 12 + +/* + * Additions for version 1.2 + */ + +typedef struct _xRRModeInfo { + RRMode id B32; + CARD16 width B16; + CARD16 height B16; + CARD32 dotClock B32; + CARD16 hSyncStart B16; + CARD16 hSyncEnd B16; + CARD16 hTotal B16; + CARD16 hSkew B16; + CARD16 vSyncStart B16; + CARD16 vSyncEnd B16; + CARD16 vTotal B16; + CARD16 nameLength B16; + RRModeFlags modeFlags B32; +} xRRModeInfo; +#define sz_xRRModeInfo 32 + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + Window window B32; +} xRRGetScreenSizeRangeReq; +#define sz_xRRGetScreenSizeRangeReq 8 + +typedef struct { + BYTE type; /* X_Reply */ + CARD8 pad; + CARD16 sequenceNumber B16; + CARD32 length B32; + CARD16 minWidth B16; + CARD16 minHeight B16; + CARD16 maxWidth B16; + CARD16 maxHeight B16; + CARD32 pad0 B32; + CARD32 pad1 B32; + CARD32 pad2 B32; + CARD32 pad3 B32; +} xRRGetScreenSizeRangeReply; +#define sz_xRRGetScreenSizeRangeReply 32 + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + Window window B32; + CARD16 width B16; + CARD16 height B16; + CARD32 widthInMillimeters B32; + CARD32 heightInMillimeters B32; +} xRRSetScreenSizeReq; +#define sz_xRRSetScreenSizeReq 20 + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + Window window B32; +} xRRGetScreenResourcesReq; +#define sz_xRRGetScreenResourcesReq 8 + +typedef struct { + BYTE type; + CARD8 pad; + CARD16 sequenceNumber B16; + CARD32 length B32; + Time timestamp B32; + Time configTimestamp B32; + CARD16 nCrtcs B16; + CARD16 nOutputs B16; + CARD16 nModes B16; + CARD16 nbytesNames B16; + CARD32 pad1 B32; + CARD32 pad2 B32; +} xRRGetScreenResourcesReply; +#define sz_xRRGetScreenResourcesReply 32 + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + RROutput output B32; + Time configTimestamp B32; +} xRRGetOutputInfoReq; +#define sz_xRRGetOutputInfoReq 12 + +typedef struct { + BYTE type; + CARD8 status; + CARD16 sequenceNumber B16; + CARD32 length B32; + Time timestamp B32; + RRCrtc crtc B32; + CARD32 mmWidth B32; + CARD32 mmHeight B32; + CARD8 connection; + CARD8 subpixelOrder; + CARD16 nCrtcs B16; + CARD16 nModes B16; + CARD16 nPreferred B16; + CARD16 nClones B16; + CARD16 nameLength B16; +} xRRGetOutputInfoReply; +#define sz_xRRGetOutputInfoReply 36 + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + RROutput output B32; +} xRRListOutputPropertiesReq; +#define sz_xRRListOutputPropertiesReq 8 + +typedef struct { + BYTE type; + CARD8 pad0; + CARD16 sequenceNumber B16; + CARD32 length B32; + CARD16 nAtoms B16; + CARD16 pad1 B16; + CARD32 pad2 B32; + CARD32 pad3 B32; + CARD32 pad4 B32; + CARD32 pad5 B32; + CARD32 pad6 B32; +} xRRListOutputPropertiesReply; +#define sz_xRRListOutputPropertiesReply 32 + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + RROutput output B32; + Atom property B32; +} xRRQueryOutputPropertyReq; +#define sz_xRRQueryOutputPropertyReq 12 + +typedef struct { + BYTE type; + BYTE pad0; + CARD16 sequenceNumber B16; + CARD32 length B32; + BOOL pending; + BOOL range; + BOOL immutable; + BYTE pad1; + CARD32 pad2 B32; + CARD32 pad3 B32; + CARD32 pad4 B32; + CARD32 pad5 B32; + CARD32 pad6 B32; +} xRRQueryOutputPropertyReply; +#define sz_xRRQueryOutputPropertyReply 32 + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + RROutput output B32; + Atom property B32; + BOOL pending; + BOOL range; + CARD16 pad B16; +} xRRConfigureOutputPropertyReq; +#define sz_xRRConfigureOutputPropertyReq 16 + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + RROutput output B32; + Atom property B32; + Atom type B32; + CARD8 format; + CARD8 mode; + CARD16 pad; + CARD32 nUnits B32; +} xRRChangeOutputPropertyReq; +#define sz_xRRChangeOutputPropertyReq 24 + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + RROutput output B32; + Atom property B32; +} xRRDeleteOutputPropertyReq; +#define sz_xRRDeleteOutputPropertyReq 12 + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + RROutput output B32; + Atom property B32; + Atom type B32; + CARD32 longOffset B32; + CARD32 longLength B32; +#ifdef __cplusplus + BOOL _delete; +#else + BOOL delete; +#endif + BOOL pending; + CARD16 pad1 B16; +} xRRGetOutputPropertyReq; +#define sz_xRRGetOutputPropertyReq 28 + +typedef struct { + BYTE type; + CARD8 format; + CARD16 sequenceNumber B16; + CARD32 length B32; + Atom propertyType B32; + CARD32 bytesAfter B32; + CARD32 nItems B32; + CARD32 pad1 B32; + CARD32 pad2 B32; + CARD32 pad3 B32; +} xRRGetOutputPropertyReply; +#define sz_xRRGetOutputPropertyReply 32 + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + Window window B32; + xRRModeInfo modeInfo; +} xRRCreateModeReq; +#define sz_xRRCreateModeReq 40 + +typedef struct { + BYTE type; + CARD8 pad0; + CARD16 sequenceNumber B16; + CARD32 length B32; + RRMode mode B32; + CARD32 pad1 B32; + CARD32 pad2 B32; + CARD32 pad3 B32; + CARD32 pad4 B32; + CARD32 pad5 B32; +} xRRCreateModeReply; +#define sz_xRRCreateModeReply 32 + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + RRMode mode B32; +} xRRDestroyModeReq; +#define sz_xRRDestroyModeReq 8 + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + RROutput output B32; + RRMode mode B32; +} xRRAddOutputModeReq; +#define sz_xRRAddOutputModeReq 12 + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + RROutput output B32; + RRMode mode B32; +} xRRDeleteOutputModeReq; +#define sz_xRRDeleteOutputModeReq 12 + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + RRCrtc crtc B32; + Time configTimestamp B32; +} xRRGetCrtcInfoReq; +#define sz_xRRGetCrtcInfoReq 12 + +typedef struct { + BYTE type; + CARD8 status; + CARD16 sequenceNumber B16; + CARD32 length B32; + Time timestamp B32; + INT16 x B16; + INT16 y B16; + CARD16 width B16; + CARD16 height B16; + RRMode mode B32; + Rotation rotation B16; + Rotation rotations B16; + CARD16 nOutput B16; + CARD16 nPossibleOutput B16; +} xRRGetCrtcInfoReply; +#define sz_xRRGetCrtcInfoReply 32 + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + RRCrtc crtc B32; + Time timestamp B32; + Time configTimestamp B32; + INT16 x B16; + INT16 y B16; + RRMode mode B32; + Rotation rotation B16; + CARD16 pad B16; +} xRRSetCrtcConfigReq; +#define sz_xRRSetCrtcConfigReq 28 + +typedef struct { + BYTE type; + CARD8 status; + CARD16 sequenceNumber B16; + CARD32 length B32; + Time newTimestamp B32; + CARD32 pad1 B32; + CARD32 pad2 B16; + CARD32 pad3 B32; + CARD32 pad4 B32; + CARD32 pad5 B32; +} xRRSetCrtcConfigReply; +#define sz_xRRSetCrtcConfigReply 32 + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + RRCrtc crtc B32; +} xRRGetCrtcGammaSizeReq; +#define sz_xRRGetCrtcGammaSizeReq 8 + +typedef struct { + BYTE type; + CARD8 status; + CARD16 sequenceNumber B16; + CARD32 length B32; + CARD16 size B16; + CARD16 pad1 B16; + CARD32 pad2 B32; + CARD32 pad3 B32; + CARD32 pad4 B32; + CARD32 pad5 B32; + CARD32 pad6 B32; +} xRRGetCrtcGammaSizeReply; +#define sz_xRRGetCrtcGammaSizeReply 32 + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + RRCrtc crtc B32; +} xRRGetCrtcGammaReq; +#define sz_xRRGetCrtcGammaReq 8 + +typedef struct { + BYTE type; + CARD8 status; + CARD16 sequenceNumber B16; + CARD32 length B32; + CARD16 size B16; + CARD16 pad1 B16; + CARD32 pad2 B32; + CARD32 pad3 B32; + CARD32 pad4 B32; + CARD32 pad5 B32; + CARD32 pad6 B32; +} xRRGetCrtcGammaReply; +#define sz_xRRGetCrtcGammaReply 32 + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + RRCrtc crtc B32; + CARD16 size B16; + CARD16 pad1 B16; +} xRRSetCrtcGammaReq; +#define sz_xRRSetCrtcGammaReq 12 + +/* + * Additions for V1.3 + */ + +typedef xRRGetScreenResourcesReq xRRGetScreenResourcesCurrentReq; + +#define sz_xRRGetScreenResourcesCurrentReq sz_xRRGetScreenResourcesReq + +typedef xRRGetScreenResourcesReply xRRGetScreenResourcesCurrentReply; +#define sz_xRRGetScreenResourcesCurrentReply sz_xRRGetScreenResourcesReply + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + RRCrtc crtc B32; + xRenderTransform transform; + CARD16 nbytesFilter; /* number of bytes in filter name */ + CARD16 pad B16; +} xRRSetCrtcTransformReq; + +#define sz_xRRSetCrtcTransformReq 48 + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + RRCrtc crtc B32; +} xRRGetCrtcTransformReq; + +#define sz_xRRGetCrtcTransformReq 8 + +typedef struct { + BYTE type; + CARD8 status; + CARD16 sequenceNumber B16; + CARD32 length B32; + xRenderTransform pendingTransform; + BYTE hasTransforms; + CARD8 pad0; + CARD16 pad1 B16; + xRenderTransform currentTransform; + CARD32 pad2 B32; + CARD16 pendingNbytesFilter B16; /* number of bytes in filter name */ + CARD16 pendingNparamsFilter B16; /* number of filter params */ + CARD16 currentNbytesFilter B16; /* number of bytes in filter name */ + CARD16 currentNparamsFilter B16; /* number of filter params */ +} xRRGetCrtcTransformReply; + +#define sz_xRRGetCrtcTransformReply 96 + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + Window window B32; + RROutput output B32; +} xRRSetOutputPrimaryReq; +#define sz_xRRSetOutputPrimaryReq 12 + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + Window window B32; +} xRRGetOutputPrimaryReq; +#define sz_xRRGetOutputPrimaryReq 8 + +typedef struct { + BYTE type; + CARD8 pad; + CARD16 sequenceNumber B16; + CARD32 length B32; + RROutput output B32; + CARD32 pad1 B32; + CARD32 pad2 B32; + CARD32 pad3 B32; + CARD32 pad4 B32; + CARD32 pad5 B32; +} xRRGetOutputPrimaryReply; +#define sz_xRRGetOutputPrimaryReply 32 + +/* + * Additions for 1.4 + */ + +typedef struct { + PictFormat format B32; + CARD16 maxWidth B16, maxHeight B16; + Rotation rotations B16; + CARD16 pad0 B16; + CARD32 pad1 B32; +} xRRScanoutPixmapInfo; +#define sz_xRRScanoutPixmapInfo 16 + +typedef struct { + RRCrtc crtc B32; + CARD32 set B32; + INT16 x B16, y B16; + RRMode mode B32; + Rotation rotation B16; + CARD16 nOutput B16; + xRenderTransform spritePositionTransform; + xRenderTransform spriteImageTransform; + Pixmap pixmap B32; + INT16 xPixmap B16, yPixmap B16; +} xRRCrtcConfig; +#define sz_xRRCrtcConfig (2*sz_xRenderTransform + 28) + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + Drawable drawable B32; +} xRRQueryScanoutPixmapsReq; +#define sz_xRRQueryScanoutPixmapsReq 8 + +typedef struct { + BYTE type; + CARD8 pad; + CARD16 sequenceNumber B16; + CARD32 length B32; + CARD32 pad0 B32; + CARD32 pad1 B32; + CARD32 pad2 B32; + CARD32 pad3 B32; + CARD32 pad4 B32; + CARD32 pad5 B32; +} xRRQueryScanoutPixmapsReply; +#define sz_xRRQueryScanoutPixmapsReply 32 + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + Pixmap pid B32; + Drawable drawable B32; + CARD16 width B16, height B16; + PictFormat format B32; + Rotation rotations B16; + CARD16 pad B16; +} xRRCreateScanoutPixmapReq; +#define sz_xRRCreateScanoutPixmapReq 24 + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + RRCrtc crtc B32; + xRenderTransform positionTransform; + xRenderTransform imageTransform; +} xRRSetCrtcSpriteTransformReq; +#define sz_xRRSetCrtcSpriteTransformReq (2*sz_xRenderTransform + 8) + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + RRCrtc crtc B32; +} xRRGetCrtcSpriteTransformReq; +#define sz_xRRGetCrtcSpriteTransformReq 8 + +typedef struct { + BYTE type; + CARD8 pad; + CARD16 sequenceNumber B16; + CARD32 length B32; + xRenderTransform positionTransform; + xRenderTransform imageTransform; +} xRRGetCrtcSpriteTransformReply; +#define sz_xRRGetCrtcSpriteTransformReply (2*sz_xRenderTransform + 8) + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + Drawable drawable B32; + CARD32 set B32; + CARD16 screenPixmapWidth B16, screenPixmapHeight B16; + CARD16 screenWidth B16, screenHeight B16; + CARD32 widthInMillimeters B32; + CARD32 heightInMillimeters B32; + CARD16 nConfigs B16; + CARD16 pad0 B16; + CARD32 pad1 B32; +} xRRSetCrtcConfigsReq; +#define sz_xRRSetCrtcConfigsReq 36 + +typedef struct { + BYTE type; + CARD8 status; + CARD16 sequenceNumber B16; + CARD32 length B32; + CARD32 pad0 B32; + CARD32 pad1 B32; + CARD32 pad2 B16; + CARD32 pad3 B32; + CARD32 pad4 B32; + CARD32 pad5 B32; +} xRRSetCrtcConfigsReply; +#define sz_xRRSetCrtcConfigsReply 32 + +/* + * event + */ +typedef struct { + CARD8 type; /* always evBase + ScreenChangeNotify */ + CARD8 rotation; /* new rotation */ + CARD16 sequenceNumber B16; + Time timestamp B32; /* time screen was changed */ + Time configTimestamp B32; /* time config data was changed */ + Window root B32; /* root window */ + Window window B32; /* window requesting notification */ + SizeID sizeID B16; /* new size ID */ + CARD16 subpixelOrder B16; /* subpixel order */ + CARD16 widthInPixels B16; /* new size */ + CARD16 heightInPixels B16; + CARD16 widthInMillimeters B16; + CARD16 heightInMillimeters B16; +} xRRScreenChangeNotifyEvent; +#define sz_xRRScreenChangeNotifyEvent 32 + +typedef struct { + CARD8 type; /* always evBase + RRNotify */ + CARD8 subCode; /* RRNotify_CrtcChange */ + CARD16 sequenceNumber B16; + Time timestamp B32; /* time crtc was changed */ + Window window B32; /* window requesting notification */ + RRCrtc crtc B32; /* affected CRTC */ + RRMode mode B32; /* current mode */ + CARD16 rotation B16; /* rotation and reflection */ + CARD16 pad1 B16; /* unused */ + INT16 x B16; /* new location */ + INT16 y B16; + CARD16 width B16; /* new size */ + CARD16 height B16; +} xRRCrtcChangeNotifyEvent; +#define sz_xRRCrtcChangeNotifyEvent 32 + +typedef struct { + CARD8 type; /* always evBase + RRNotify */ + CARD8 subCode; /* RRNotify_OutputChange */ + CARD16 sequenceNumber B16; + Time timestamp B32; /* time output was changed */ + Time configTimestamp B32; /* time config was changed */ + Window window B32; /* window requesting notification */ + RROutput output B32; /* affected output */ + RRCrtc crtc B32; /* current crtc */ + RRMode mode B32; /* current mode */ + CARD16 rotation B16; /* rotation and reflection */ + CARD8 connection; /* connection status */ + CARD8 subpixelOrder; /* subpixel order */ +} xRROutputChangeNotifyEvent; +#define sz_xRROutputChangeNotifyEvent 32 + +typedef struct { + CARD8 type; /* always evBase + RRNotify */ + CARD8 subCode; /* RRNotify_OutputProperty */ + CARD16 sequenceNumber B16; + Window window B32; /* window requesting notification */ + RROutput output B32; /* affected output */ + Atom atom B32; /* property name */ + Time timestamp B32; /* time crtc was changed */ + CARD8 state; /* NewValue or Deleted */ + CARD8 pad1; + CARD16 pad2 B16; + CARD32 pad3 B32; + CARD32 pad4 B32; +} xRROutputPropertyNotifyEvent; +#define sz_xRROutputPropertyNotifyEvent 32 + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + RRCrtc crtc B32; +} xRRGetPanningReq; +#define sz_xRRGetPanningReq 8 + +typedef struct { + BYTE type; + CARD8 status; + CARD16 sequenceNumber B16; + CARD32 length B32; + Time timestamp B32; + CARD16 left B16; + CARD16 top B16; + CARD16 width B16; + CARD16 height B16; + CARD16 track_left B16; + CARD16 track_top B16; + CARD16 track_width B16; + CARD16 track_height B16; + INT16 border_left B16; + INT16 border_top B16; + INT16 border_right B16; + INT16 border_bottom B16; +} xRRGetPanningReply; +#define sz_xRRGetPanningReply 36 + +typedef struct { + CARD8 reqType; + CARD8 randrReqType; + CARD16 length B16; + RRCrtc crtc B32; + Time timestamp B32; + CARD16 left B16; + CARD16 top B16; + CARD16 width B16; + CARD16 height B16; + CARD16 track_left B16; + CARD16 track_top B16; + CARD16 track_width B16; + CARD16 track_height B16; + INT16 border_left B16; + INT16 border_top B16; + INT16 border_right B16; + INT16 border_bottom B16; +} xRRSetPanningReq; +#define sz_xRRSetPanningReq 36 + +typedef struct { + BYTE type; + CARD8 status; + CARD16 sequenceNumber B16; + CARD32 length B32; + Time newTimestamp B32; + CARD32 pad1 B32; + CARD32 pad2 B32; + CARD32 pad3 B32; + CARD32 pad4 B32; + CARD32 pad5 B32; +} xRRSetPanningReply; +#define sz_xRRSetPanningReply 32 + +#undef PictFormat +#undef RRModeFlags +#undef RRCrtc +#undef RRMode +#undef RROutput +#undef RRMode +#undef RRCrtc +#undef Drawable +#undef Window +#undef Font +#undef Pixmap +#undef Cursor +#undef Colormap +#undef GContext +#undef Atom +#undef Time +#undef KeyCode +#undef KeySym +#undef Rotation +#undef SizeID +#undef SubpixelOrder + +#endif /* _XRANDRP_H_ */ diff --git a/X11/extensions/randrproto.txt b/X11/extensions/randrproto.txt index 9fe800f0c..20cac7562 100644 --- a/X11/extensions/randrproto.txt +++ b/X11/extensions/randrproto.txt @@ -1,2577 +1,2623 @@ - The X Resize, Rotate and Reflect Extension
- Version 1.3.1
- 2009-10-5
-
- Jim Gettys
- Jim.Gettys@hp.com
- Cambridge Research Laboratory
- HP Labs
- Hewlett Packard Company
-
- Keith Packard
- keith.packard@intel.com
- Open Source Technology Center
- Intel Corporation
-
-1. Introduction
-
-The X Resize, Rotate and Reflect Extension, called RandR for short,
-brings the ability to resize, rotate and reflect the root window of a
-screen. It is based on the X Resize and Rotate Extension as specified
-in the Proceedings of the 2001 Usenix Technical Conference [RANDR].
-
-RandR as implemented and integrated into the X server differs in
-one substantial fashion from the design discussed in that paper: that
-is, RandR 1.0 does not implement the depth switching described in that
-document, and the support described for that in the protocol in that
-document and in the implementation has been removed from the
-protocol described here, as it has been overtaken by events.
-
-These events include:
- ► Modern toolkits (in this case, GTK+ 2.x) have progressed to the point
- of implementing migration between screens of arbitrary depths
- ► The continued advance of Moore's law has made limited amounts of VRAM
- less of an issue, reducing the pressure to implement depth switching
- on laptops or desktop systems
- ► The continued decline of legacy toolkits whose design would have
- required depth switching to support migration
- ► The lack of depth switching implementation experience in the
- intervening time, due to events beyond our control
-
-Additionally, the requirement to support depth switching might
-complicate other re-engineering of the device independent part of the
-X server that is currently being contemplated.
-
-Rather than further delaying RandR's widespread deployment for a feature
-long wanted by the community (resizing of screens, particularly on laptops),
-or the deployment of a protocol design that might be flawed due to lack of
-implementation experience, we decided to remove depth switching from the
-protocol. It may be implemented at a later time if resources and
-interests permit as a revision to the protocol described here, which will
-remain a stable base for applications. The protocol described here has been
-implemented in the main X.org server, and more fully in the hw/kdrive
-implementation in the distribution, which fully implements resizing,
-rotation and reflection.
-
-1.2 Introduction to version 1.2 of the extension
-
-One of the significant limitations found in version 1.1 of the RandR
-protocol was the inability to deal with the Xinerama model where multiple
-monitors display portions of a common underlying screen. In this environment,
-zero or more video outputs are associated with each CRT controller which
-defines both a set of video timings and a 'viewport' within the larger
-screen. This viewport is independent of the overall size of the screen, and
-may be located anywhere within the screen.
-
-The effect is to decouple the reported size of the screen from the size
-presented by each video output, and to permit multiple outputs to present
-information for a single screen.
-
-To extend RandR for this model, we separate out the output, CRTC and screen
-configuration information and permit them to be configured separately. For
-compatibility with the 1.1 version of the protocol, we make the 1.1 requests
-simultaneously affect both the screen and the (presumably sole) CRTC and
-output. The set of available outputs are presented with UTF-8 encoded names
-and may be connected to CRTCs as permitted by the underlying hardware. CRTC
-configuration is now done with full mode information instead of just size
-and refresh rate, and these modes have names. These names also use UTF-8
-encoding. New modes may also be added by the user.
-
-Additional requests and events are provided for this new functionality.
-
- ┌────────────────────────────────┬──────────┐
- ┏━━━━━━━┳───────────────┐ ╔════════╗ ╔════════╗
- ┃ 1 ┃ │ ║ A ║ ║ B ║
- ┃ ┏━━━╋━━━━━━━━━━━━━━━┫ ║ ║ ║ ║
- ┣━━━╋━━━┛ ┃ ╚════════╝ ╚════════╝
- │ ┃ 2 ┃─────────────────┐
- │ ┃ ┃ ╔═══════════════════╗
- │ ┃ ┃ ║ ║
- │ ┗━━━━━━━━━━━━━━━━━━━┫ ║ C ║
- └───────────────────────┘ ║ ║
- ┌──────┐ ┏━━━━┓ ╔══════╗ ║ ║
- │screen│ ┃CRTC┃ ║output║ ╚═══════════════════╝
- └──────┘ ┗━━━━┛ ╚══════╝
-
-In this picture, the screen is covered (incompletely) by two CRTCs. CRTC1
-is connected to two outputs, A and B. CRTC2 is connected to output C.
-Outputs A and B will present exactly the same region of the screen using
-the same mode line. Output C will present a different (larger) region of
-the screen using a different mode line.
-
-RandR provides information about each available CRTC and output; the
-connection between CRTC and output is under application control, although
-the hardware will probably impose restrictions on the possible
-configurations. The protocol doesn't try to describe these restrictions,
-instead it provides a mechanism to find out what combinations are supported.
-
-For instance, dual-link DVI gangs two CRTC outputs together to provide higher
-bandwidth for large resolution screens. This is exposed in RandR by
-requiring that nothing be connected to the second CRTC when driving a high
-resolution screen on the first.
-
-1.3 Introduction to version 1.3 of the extension
-
-Version 1.3 builds on the changes made with version 1.2 and adds some new
-capabilities without fundmentally changing the extension again. The
-following features are added in this version:
-
- • Projective Transforms. The implementation work for general rotation
- support made it trivial to add full projective transformations. These
- can be used to scale the screen up/down as well as perform projector
- keystone correct or other effects.
-
- • Panning. It was removed with RandR 1.2 because the old semantics didn't
- fit any longer. With RandR 1.3 panning can be specified per crtc.
-
-1.4 Introduction to version 1.4 of the extension
-
-Version 1.4 adds a couple more capabilities to further expose the
-underlying hardware to clients
-
- • Per-crtc pixmaps. This provides for multiple scan-out buffers
- which applications can create and assign to arbitrary collections
- of crtcs.
-
- • Sprite position and image transforms. These provide a projective
- transform for both the hot spot location and the sprite image
- itself for each CRTC.
-
- • RRSetCrtcConfigs request. This supplies a set of
- crtc configurations to the server that must be applied together
- or not at all. This can reduce screen flicker while also
- providing the server a complete configuration for appropriate
- resource management.
-
-The first two additions, per-crtc pixmaps and sprite transforms are
-designed to solve two problems:
-
- 1) Screen transforms. The software transform code in the X server
- uses a shadow frame buffer, adding another copy to every graphics
- operation. Worse, the server has no idea about when clients are
- done drawing a frame, so the user gets additional latency and
- judder.
-
- The goal is to move this operation out to the compositing manager
- which already deals with an extra copy of the frame buffer for
- many operations. Have the compositing manager create and draw to a
- separate pixmap for scanout. It can perform whatever transforms
- are required to get the image in the right orientation for the
- user.
-
- 2) Hardware scanout engine size limits. With a single scanout buffer
- for the entire screen, it's possible for the user to ask for a
- configuration which requires that scanout buffer to be larger than
- the hardware is capable of scanning out from. Again, having the
- compositing manager create a pixmap for each CRTC will allow for
- any configuration where monitor position within the virtual space
- isn't limited by the scanout limits.
-
-In both of these cases, the Sprite transforms are necessary to ensure
-that the sprite appears at the desired spot on each CRTC and with the
-right shape.
-
-1.99 Acknowledgements
-
-Our thanks to the contributors to the design found on the xpert mailing
-list, in particular:
-
-Alan Hourihane for work on the early implementation
-Andrew C. Aitchison for help with the XFree86 DDX implementation
-Andy Ritger for early questions about how mergefb/Xinerama work with RandR
-Carl Worth for editing the specification and Usenix paper
-David Dawes for XFree86 DDX integration work
-Thomas Winischhofer for the hardware-accelerated SiS rotation implementation
-Matthew Tippett and Kevin Martin for splitting outputs and CRTCs to more
-fully expose what video hardware can do
-
- ❧❧❧❧❧❧❧❧❧❧❧
-
-2. Screen change model
-
-Screens may change dynamically, either under control of this extension, or
-due to external events. Examples include: monitors being swapped, pressing a
-button to switch from internal display to an external monitor on a laptop,
-or, eventually, the hotplug of a display card entirely on busses such as
-Cardbus or Express Card which permit hot-swap (which will require other work
-in addition to this extension).
-
-Since the screen configuration is dynamic and asynchronous to the client and
-may change at any time RandR provides mechanisms to ensure that your clients
-view is up to date with the configuration possibilities of the moment and
-enforces applications that wish to control the configuration to prove that
-their information is up to date before honoring requests to change the
-screen configuration (by requiring a timestamp on the request).
-
-Interested applications are notified whenever the screen configuration
-changes, providing the current size of the screen and subpixel order (see
-the Render extension [RENDER]), to enable proper rendering of subpixel
-decimated client text to continue, along with a time stamp of the
-configuration change. A client must refresh its knowledge of the screen
-configuration before attempting to change the configuration after a
-notification, or the request will fail.
-
-To avoid multiplicative explosion between orientation, reflection and sizes,
-the sizes are only those sizes in the normal (0) rotation.
-
-Rotation and reflection and how they interact can be confusing. In Randr,
-the coordinate system is rotated in a counter-clockwise direction relative
-to the normal orientation. Reflection is along the window system coordinate
-system, not the physical screen X and Y axis, so that rotation and
-reflection do not interact. The other way to consider reflection is to is
-specified in the "normal" orientation, before rotation, if you find the
-other way confusing.
-
-We expect that most clients and toolkits will be oblivious to changes to the
-screen structure, as they generally use the values in the connections Display
-structure directly. By toolkits updating the values on the fly, we believe
-pop-up menus and other pop up windows will position themselves correctly in
-the face of screen configuration changes (the issue is ensuring that pop-ups
-are visible on the reconfigured screen).
-
- ❧❧❧❧❧❧❧❧❧❧❧
-
-3. Data Types
-
-The subpixel order is shared with the Render extension, and is documented
-there. The only datatype defined is the screen size, defined in the normal
-(0 degree) orientation.
-
- ❧❧❧❧❧❧❧❧❧❧❧
-
-4. Errors
-
-Errors are sent using core X error reports.
-
-Output
- A value for an OUTPUT argument does not name a defined OUTPUT.
-CRTC
- A value for a CRTC argument does not name a defined CRTC.
-Mode
- A value for a MODE argument does not name a defined MODE.
-
- ❧❧❧❧❧❧❧❧❧❧❧
-
-5. Protocol Types
-
-RRCONFIGSTATUS { Success
- InvalidConfigTime
- InvalidTime
- Failed }
-
- A value of type RRCONFIGSTATUS returned when manipulating the output
- configuration or querying information from the server that has some
- time-dependency.
-
- InvalidConfigTime indicates that the supplied configuration
- timestamp does not match the current X server configuration
- timestamp. Usually this means that the output configuration has
- changed since the timestamp was received by the application.
-
- InvalidTime indicates that the supplied output reconfiguration time
- is earlier than the most recent output reconfiguration request.
- Generally this indicates that another application has reconfigured
- the output using a later timestamp.
-
- Failed is returned whenever the operation is unsuccessful for some
- other reason. This generally indicates that the requested output
- configuration is unsupported by the hardware. The goal is to make
- these limitations expressed by the protocol, but when that isn't
- possible it is correct to return this error value. If, as a
- implentor, you find this error code required, please submit the
- hardware constraints that exist so that a future version of the
- extension can correctly capture the configuration constraints in
- your system.
-
-ROTATION { Rotate_0
- Rotate_90
- Rotate_180
- Rotate_270
- Reflect_X
- Reflect_Y }
-
- These values are used both to indicate a set of allowed rotations
- and reflections as well as to indicate a specific rotation and
- reflection combination.
-
-RRSELECTMASK { RRScreenChangeNotifyMask
- RRCrtcChangeNotifyMask (New in version 1.2)
- RROutputChangeNotifyMask (New in version 1.2)
- RROutputPropertyNotifyMask (New in version 1.2) }
-
-SIZEID { CARD16 }
-
-MODE { XID or None }
-
-CRTC { XID }
-
-OUTPUT { XID }
-
-CONNECTION { Connected, Disconnected, UnknownConnection }
-
- This value provides an indication of whether an output is actually
- connected to a monitor or other presentation device.
-
-SUBPIXELORDER { SubPixelUnknown The subpixel order uses the Render
- SubPixelHorizontalRGB extensions definitions; they are here
- SubPixelHorizontalBGR only for convenience.
- SubPixelVerticalRGB
- SubPixelVerticalBGR
- SubPixelNone }
-
-SCREENSIZE { widthInPixels, heightInPixels: CARD16
- widthInMillimeters, heightInMillimeters: CARD16 }
-
-MODEFLAG { HSyncPositive
- HSyncNegative
- VSyncPositive
- VSyncNegative
- Interlace
- DoubleScan
- CSync
- CSyncPositive
- CSyncNegative
- HSkewPresent
- BCast
- PixelMultiplex
- DoubleClock
- ClockDivideBy2 }
-
-MODEINFO { id: MODE
- name: STRING
- width, height: CARD16
- dotClock: CARD32
- hSyncStart, hSyncEnd, hTotal, hSkew: CARD16
- vSyncStart, vSyncEnd, vTotal: CARD16
- modeFlags: SETofMODEFLAG }
-
-REFRESH { rates: LISTofCARD16 }
-
- ❧❧❧❧❧❧❧❧❧❧❧
-
-5.4. Protocol Types added in version 1.4 of the extension
-
-SCANOUTPIXMAPINFO { format: PICTFORMAT
- maxWidth, maxHeight: CARD16
- rotations: SETofROTATION }
-
- 'format' is the format of the pixels within the scanout
- pixmap. Only 'Direct' formats are supported, this will never
- be an 'Indexed' format.
-
- 'maxWidth' and 'maxHeight' define the largest supported
- scanout pixmap. There is no minimum size; scanout pixmaps down
- to 1x1 may be created.
-
- 'rotations' lists the set of rotations which can be provided
- without additional latency or memory usage within the
- environment. This typically means that they are supported
- directly by the hardware. It is expected that a compositing
- manager will perform other transforms as a part of the
- compositing process in conjunction with the sprite transforms
- described in this extension.
-
-CRTCCONFIG { crtc: CRTC
- x, y: INT16
- mode: MODE
- rotation: ROTATION
- sprite-position-transform: TRANSFORM
- sprite-image-transform: TRANSFORM
- outputs: LISTofOUTPUT
- pixmap: PIXMAP, None or CurrentScanoutPixmap
- pixmap-x, pixmap-y: INT16 }
-
- The sprite-position-transform and sprite-image-transform
- values are used as in the RRSetCrtcSpriteTransform request
- position-transform and image-transform parameters.
-
- 'pixmap' specifies the origin of the pixel data to be presented on
- 'crtc'. If 'pixmap' is None, then data will be presented from
- the screen pixmap. If 'pixmap' is 'CurrentScanoutPixmap', then
- whatever source is currently in use will remain in use, whether
- that is the screen pixmap or some other allocated scanout pixmap.
-
- 'pixmap-x' and 'pixmap-y' specify the origin of the scanout
- data within the pixmap, the area from that location to
- pixmap-x + width-of(mode), pixmap-y + height-of(mode) is what
- will be seen on the connected outputs.
-
- The pixmap value must specify a scanout pixmap as created by
- RRCreateScanoutPixmap, or a Match error results.
-
- The specified pixmap must be at least as large as the area to
- be scanned out, or a Match error results.
-
- The specified pixmap must have had the specified 'rotation'
- included as a part of its creation paramaeters, or a Match
- error results.
-
- If 'pixmap' is destroyed while still being used as a scanout
- pixmap, then the associated CRTC will have its scanout pixmap
- set back to None, the CRTC origin set back to 0,0 (to make
- sure it fits) and the screen pixmap width and height increased
- to be at least as big as the current CRTC mode.
-
- ❧❧❧❧❧❧❧❧❧❧❧
-
-6. Extension Initialization
-
-The name of this extension is "RANDR".
-
-┌───
- RRQueryVersion
- client-major-version: CARD32
- client-minor-version: CARD32
- ▶
- major-version: CARD32
- minor-version: CARD32
-└───
-
- The client sends the highest supported version to the server
- and the server sends the highest version it supports, but no
- higher than the requested version. Major versions changes can
- introduce incompatibilities in existing functionality, minor
- version changes introduce only backward compatible changes.
- It is the clients responsibility to ensure that the server
- supports a version which is compatible with its expectations.
-
- ❧❧❧❧❧❧❧❧❧❧❧
-
-7. Extension Requests
-
-┌───
- RRSelectInput
- window: WINDOW
- enable: SETofRRSELECTMASK
-└───
- Errors: Window, Value
-
- If 'enable' is RRScreenChangeNotifyMask, RRScreenChangeNotify events
- will be sent when the screen configuration changes, either from
- this protocol extension, or due to detected external screen
- configuration changes. RRScreenChangeNotify may also be sent when
- this request executes if the screen configuration has changed since
- the client connected, to avoid race conditions.
-
- New for version 1.2:
-
- If 'enable' contains RRCrtcChangeMask, RRCrtcChangeNotify events
- will be sent when a the configuration for a CRTC associated with the
- screen changes, either through this protocol extension or due to
- detected external changes. RRCrtcChangeNotify may also be sent when
- this request executes if the CRTC configuration has changed since
- the client connected, to avoid race conditions.
-
- If 'enable' contains RROutputChangeMask, RROutputChangeNotify events
- will be sent when a the configuration for an output associated with
- the screen changes, either through this protocol extension or due to
- detected external changes. RROutputChangeNotify may also be sent
- when this request executes if the output configuration has changed
- since the client connected, to avoid race conditions.
-
- If 'enable' contains RROutputPropertyNotifyMask,
- RROutputPropertyNotify events will be sent when properties change on
- this output.
-
-┌───
- RRSetScreenConfig
- window: WINDOW
- timestamp: TIMESTAMP
- config-timestamp: TIMESTAMP
- size-id: SIZEID
- rotation: ROTATION
- rate: CARD16
- ▶
- status: RRCONFIGSTATUS
- new-timestamp: TIMESTAMP
- config-timestamp: TIMESTAMP
- root: WINDOW
- subpixelOrder: SUBPIXELORDER
-└───
- Errors: Value, Match
-
- If 'timestamp' is less than the time when the configuration was last
- successfully set, the request is ignored and InvalidTime returned in
- status.
-
- If 'config-timestamp' is not equal to when the server's screen
- configurations last changed, the request is ignored and
- InvalidConfigTime returned in status. This could occur if the
- screen changed since you last made a RRGetScreenInfo request,
- perhaps by a different piece of display hardware being installed.
- Rather than allowing an incorrect call to be executed based on stale
- data, the server will ignore the request.
-
- 'rate' contains the desired refresh rate. If it is zero, the server
- selects an appropriate rate.
-
- This request may fail for other indeterminate reasons, in which case
- 'status' will be set to Failed and no configuration change will be
- made.
-
- This request sets the screen to the specified size, rate, rotation
- and reflection.
-
- When this request succeeds, 'status' contains Success and the
- requested changes to configuration will have been made.
-
- 'new-time-stamp' contains the time at which this request was
- executed.
-
- 'config-timestamp' contains the time when the possible screen
- configurations were last changed.
-
- 'root' contains the root window for the screen indicated by the
- window.
-
- 'subpixelOrder' contains the resulting subpixel order of the screen
- to allow correct subpixel rendering.
-
- Value errors are generated when 'rotation', 'rate' or 'size-id'
- are invalid.
-
-┌───
- RRGetScreenInfo
- window: WINDOW
- ▶
- rotations: SETofROTATION
- root: WINDOW
- timestamp: TIMESTAMP
- config-timestamp: TIMESTAMP
- size-id: SIZEID
- rotation: ROTATION
- rate: CARD16
- sizes: LISTofSCREENSIZE
- refresh: LISTofREFRESH
-└───
-
- Errors: Window
-
- RRGetScreenInfo returns information about the current and available
- configurations for the screen associated with 'window'.
-
- 'rotations' contains the set of rotations and reflections supported
- by the screen.
-
- 'root' is the root window of the screen.
-
- 'config-timestamp' indicates when the screen configuration
- information last changed: requests to set the screen will fail
- unless the timestamp indicates that the information the client
- is using is up to date, to ensure clients can be well behaved
- in the face of race conditions.
-
- 'timestamp' indicates when the configuration was last set.
-
- 'size-id' indicates which size is active.
-
- 'rate' is the current refresh rate. This is zero when the refresh
- rate is unknown or on devices for which refresh is not relevant.
-
- 'sizes' is the list of possible frame buffer sizes (at the normal
- orientation. Each size indicates both the linear physical size of
- the screen and the pixel size.
-
- 'refresh' is the list of refresh rates for each size. Each element
- of 'sizes' has a corresponding element in 'refresh'. An empty list
- indicates no known rates, or a device for which refresh is not
- relevant.
-
- The default size of the screen (the size that would become the
- current size when the server resets) is the first size in the
- list.
-
-7.1. Extension Requests added in version 1.2 of the extension
-
-As introduced above, version 1.2 of the extension splits the screen size
-from the crtc and output configuration, permitting the subset of the screen
-presented by multiple outputs to be configured. As a separate notion, the
-size of the screen itself may be arbitrarily configured within a defined
-range. As crtcs and outputs are added and removed from the system, the set
-returned by the extension will change so that applications can detect
-dynamic changes in the display environment.
-
-┌───
- RRGetScreenSizeRange
- window: WINDOW
- ▶
- CARD16 minWidth, minHeight
- CARD16 maxWidth, maxHeight
-└───
- Errors: Window
-
- Returns the range of possible screen sizes. The screen may be set to
- any size within this range.
-
-┌───
- RRSetScreenSize
- window: WINDOW
- width: CARD16
- height: CARD16
- width-in-millimeters: CARD32
- height-in-millimeters: CARD32
-└───
- Errors: Window, Match, Value
-
- Sets the screen to the specified size. 'width' and 'height' must be
- within the range allowed by GetScreenSizeRanges, otherwise a Value
- error results. All active monitors must be configured to display a
- subset of the specified size, else a Match error results.
-
- 'width-in-millimeters' and 'height-in-millimeters' can be set to
- reflect the physical size of the screen reported both through this
- extension and the core protocol. They must be non-zero, or Value
- error results.
-
- If panning is enabled, the width and height of the panning and the
- tracking areas are adapted to the new size and clamped afterwards.
- Disabled panning axes remain disabled.
- Panning borders are disabled if their requirements are no longer met
- (see RRSetPanning).
-
-┌───
- RRGetScreenResources
- window: WINDOW
- ▶
- timestamp: TIMESTAMP
- config-timestamp: TIMESTAMP
- crtcs: LISTofCRTC
- outputs: LISTofOUTPUT
- modes: LISTofMODEINFO
-└───
- Errors: Window
-
- RRGetScreenResources returns the list of outputs and crtcs connected
- to the screen associated with 'window'.
-
- 'timestamp' indicates when the configuration was last set.
-
- 'config-timestamp' indicates when the configuration information last
- changed. Requests to configure the output will fail unless the
- timestamp indicates that the information the client is using is up
- to date, to ensure clients can be well behaved in the face of race
- conditions.
-
- 'crtcs' contains the list of CRTCs associated with the screen.
-
- 'outputs' contains the list of outputs associated with the screen.
-
- 'modes' contains the list of modes associated with the screen
-
- This request explicitly asks the server to ensure that the
- configuration data is up-to-date wrt the hardware. If that requires
- polling, this is when such polling would take place. If the
- current configuration is all that's required, use
- RRGetScreenResourcesCurrent instead.
-
-┌───
- RRGetOutputInfo
- output: OUTPUT
- config-timestamp: TIMESTAMP
- ▶
- status: RRCONFIGSTATUS
- timestamp: TIMESTAMP
- crtc: CRTC
-
- name: STRING
- connection: CONNECTION
- subpixel-order: SUBPIXELORDER
- widthInMillimeters, heightInMillimeters: CARD32
- crtcs: LISTofCRTC
- clones: LISTofOUTPUT
- modes: LISTofMODE
- num-preferred: CARD16
-└───
- Errors: Output
-
- RRGetOutputInfo returns information about the current and available
- configurations 'output'.
-
- If 'config-timestamp' does not match the current configuration
- timestamp (as returned by RRGetScreenResources), 'status' is set to
- InvalidConfigTime and the remaining reply data is empty. Otherwise,
- 'status' is set to Success.
-
- 'timestamp' indicates when the configuration was last set.
-
- 'crtc' is the current source CRTC for video data, or Disabled if the
- output is not connected to any CRTC.
-
- 'name' is a UTF-8 encoded string designed to be presented to the
- user to indicate which output this is. E.g. "S-Video" or "DVI".
-
- 'connection' indicates whether the hardware was able to detect a
- device connected to this output. If the hardware cannot determine
- whether something is connected, it will set this to
- UnknownConnection.
-
- 'subpixel-order' contains the resulting subpixel order of the
- connected device to allow correct subpixel rendering.
-
- 'widthInMillimeters' and 'heightInMillimeters' report the physical
- size of the displayed area. If unknown, or not really fixed (e.g.,
- for a projector), these values are both zero.
-
- 'crtcs' is the list of CRTCs that this output may be connected to.
- Attempting to connect this output to a different CRTC results in a
- Match error.
-
- 'clones' is the list of outputs which may be simultaneously
- connected to the same CRTC along with this output. Attempting to
- connect this output with an output not in the 'clones' list
- results in a Match error.
-
- 'modes' is the list of modes supported by this output. Attempting to
- connect this output to a CRTC not using one of these modes results
- in a Match error.
-
- The first 'num-preferred' modes in 'modes' are preferred by the
- monitor in some way; for fixed-pixel devices, this would generally
- indicate which modes match the resolution of the output device.
-
-┌───
- RRListOutputProperties
- output:OUTPUT
- ▶
- atoms: LISTof ATOM
-└───
- Errors: Output
-
- This request returns the atoms of properties currently defined on
- the output.
-
-┌───
- RRQueryOutputProperty
- output: OUTPUT
- property: ATOM
- ▶
- pending: BOOL
- range: BOOL
- immutable: BOOL
- valid-values: LISTofINT32
-└───
- Errors: Name, Atom, Output
-
- If the specified property does not exist for the specified output,
- then a Name error is returned.
-
- If 'pending' is TRUE, changes made to property values with
- RRChangeOutputProperty will be saved in the pending property value
- and be automatically copied to the current value on the next
- RRSetCrtcConfig request involving the named output. If 'pending' is
- FALSE, changes are copied immediately.
-
- If 'range' is TRUE, then the valid-values list will contain
- precisely two values indicating the minimum and maximum allowed
- values. If 'range' is FALSE, then the valid-values list will contain
- the list of possible values; attempts to set other values will
- result in a Value error.
-
- If 'immutable' is TRUE, then the property configuration cannot be
- changed by clients. Immutable properties are interpreted by the X
- server.
-
-┌───
- RRConfigureOutputProperty
- output: OUTPUT
- property: ATOM
- pending: BOOL
- range: BOOL
- valid-values: LISTofINT32
-└───
- Errors: Access, Name, Atom, Output
-
- If the specified property is 'immutable', an Access error is
- returned.
-
- Otherwise, the configuration of the specified property is changed to
- the values provided in this request.
-
- If the specified property does not exist for the specified output,
- it is created with an empty value and None type.
-
-┌───
- RRChangeOutputProperty
- output: OUTPUT
- property, type: ATOM
- format: {8, 16, 32}
- mode: { Replace, Prepend, Append }
- data: LISTofINT8 or LISTofINT16 or LISTofINT32
-└───
- Errors: Alloc, Atom, Match, Value, Output
-
- This request alters the value of the property for the specified
- output. If the property is marked as a 'pending' property, only the
- pending value of the property is changed. Otherwise, changes are
- reflected in both the pending and current values of the property.
- The type is uninterpreted by the server. The format specifies
- whether the data should be viewed as a list of 8-bit, 16-bit, or
- 32-bit quantities so that the server can correctly byte-swap as
- necessary.
-
- If the mode is Replace, the previous property value is discarded.
- If the mode is Prepend or Append, then the type and format must
- match the existing property value (or a Match error results). If
- the property is undefined, it is treated as defined with the correct
- type and format with zero-length data.
-
- For Prepend, the data is tacked on to the beginning of the existing
- data, and for Append, it is tacked on to the end of the existing data.
-
- This request generates a OutputPropertyNotify
-
- The lifetime of a property is not tied to the storing client.
- Properties remain until explicitly deleted, until the output is
- destroyed, or until server reset (see section 10).
-
- The maximum size of a property is server-dependent and may vary
- dynamically.
-
-┌───
- RRDeleteOutputProperty
- output: OUTPUT
- property: ATOM
-└───
- Errors: Atom, Output
-
- This request deletes the property from the specified window if the
- property exists and generates a OutputPropertyNotify event unless
- the property does not exist.
-
-┌───
- RRGetOutputProperty
- output: OUTPUT
- property: ATOM
- type: ATOM or AnyPropertyType
- long-offset, long-length: CARD32
- delete: BOOL
- pending: BOOL
- ▶
- type: ATOM or None
- format: {0, 8, 16, 32}
- bytes-after: CARD32
- value: LISTofINT8 or LISTofINT16 or LISTofINT32
-└───
- Errors: Atom, Value, Output
-
- If the specified property does not exist for the specified output,
- then the return type is None, the format and bytes-after are zero,
- and the value is empty. The delete argument is ignored in this
- case.
-
- If the specified property exists but its type does not match the
- specified type, then the return type is the actual type of the
- property, the format is the actual format of the property (never
- zero), the bytes-after is the length of the property in bytes (even
- if the format is 16 or 32), and the value is empty. The delete
- argument is ignored in this case.
-
- If the specified property exists and either AnyPropertyType is
- specified or the specified type matches the actual type of the
- property, then the return type is the actual type of the property,
- the format is the actual format of the property (never zero), and
- the bytes-after and value are as follows, given:
-
- N = actual length of the stored property in bytes
- (even if the format is 16 or 32)
- I = 4 × offset
- T = N - I
- L = MINIMUM(T, 4 × long-length)
- A = N - (I + L)
-
- If 'pending' is true, and if the property holds a pending value,
- then the value returned will be the pending value of the property
- rather than the current value. The returned value starts at byte
- index I in the property (indexing from 0), and its length in bytes
- is L. However, it is a Value error if long-offset is given such
- that L is negative. The value of bytes-after is A, giving the
- number of trailing unread bytes in the stored property. If delete
- is True and the bytes-after is zero, the property is also deleted
- from the output, and a RROutputPropertyNotify event is generated.
-
-┌───
- RRCreateMode
- window: WINDOW
- modeinfo: MODEINFO
- ▶
- mode: MODE
-└───
- Errors: Window, Name, Value
-
- 'modeinfo' provides a new mode for outputs on the screen
- associated with 'window'. If the name of 'modeinfo' names an
- existing mode, a Name error is returned. If some parameter of the
- mode is not valid in some other way, a Value error is returned.
-
- The returned 'mode' provides the id for the mode.
-
-┌───
- RRDestroyMode
- mode: MODE
-└───
- Errors: Mode, Access
-
- The user-defined 'mode' is destroyed. 'mode' must name a mode
- defined with RRCreateMode, else an Match error is returned. If
- 'mode' is in use by some CRTC or Output, then an Access error is
- returned.
-
-┌───
- RRAddOutputMode
- output: OUTPUT
- mode: MODE
-└───
- Errors: Output, Mode, Match
-
- 'output' indicates which output is to be configured.
-
- 'mode' specifies which mode to add. If 'mode' is not valid for
- 'output', then a Match error is generated.
-
- This request generates OutputChangeNotify events.
-
-┌───
- RRDeleteOutputMode
- output: OUTPUT
- mode: MODE
-└───
- Errors: Output, Mode
-
- 'output' indicates which output is to be configured.
-
- 'mode' specifies which mode to delete. 'mode' must have been added
- with RRAddOutputMode, else an Access error is returned. 'mode' must
- not be active, else a Match error is returned.
-
- This request generates OutputChangeNotify events.
-
-┌───
- RRGetCrtcInfo
- crtc: CRTC
- config-timestamp: TIMESTAMP
- ▶
- status: RRCONFIGSTATUS
- timestamp: TIMESTAMP
- x, y: INT16
- width, height: CARD16
- mode: MODE
- rotation: ROTATION
- outputs: LISTofOUTPUT
-
- rotations: SETofROTATION
- possible-outputs: LISTofOUTPUT
-└───
-
- Errors: Window
-
- RRGetCrtcModes returns information about the current and available
- configurations for the specified crtc connected to the screen
- associated with 'window'.
-
- If 'config-timestamp' does not match the current configuration
- timestamp (as returned by RRGetScreenResources), 'status' is set to
- InvalidConfigTime and the remaining reply data is empty. Otherwise,
- 'status' is set to Success.
-
- 'timestamp' indicates when the configuration was last set.
-
- 'x' and 'y' indicate the position of this CRTC within the screen
- region. They will be set to 0 when the CRTC is disabled.
-
- 'width' and 'height' indicate the size of the area within the screen
- presented by this CRTC. This may be different than the size of the
- mode due to rotation. They will be set to 0 when the CRTC
- is disabled.
-
- 'mode' indicates which mode is active, or None indicating that the
- CRTC has been disabled and is not displaying the screen contents.
-
- 'rotation' indicates the active rotation. It is set to Rotate_0
- when the CRTC is disabled.
-
- 'outputs' is the list of outputs currently connected to this CRTC
- and is empty when the CRTC is disabled.
-
- 'rotations' contains the set of rotations and reflections supported
- by the CRTC.
-
- 'possible-outputs' lists all of the outputs which may be connected
- to this CRTC.
-
-┌───
- RRSetCrtcConfig
- crtc: CRTC
- timestamp: TIMESTAMP
- config-timestamp: TIMESTAMP
- x, y: INT16
- mode: MODE
- rotation: ROTATION
- outputs: LISTofOUTPUT
- ▶
- status: RRCONFIGSTATUS
- new-timestamp: TIMESTAMP
-└───
- Errors: Value, Match
-
- If 'timestamp' is less than the time when the configuration was last
- successfully set, the request is ignored and InvalidTime returned in
- status.
-
- If 'config-timestamp' is not equal to when the monitor's
- configuration last changed, the request is ignored and
- InvalidConfigTime returned in status. This could occur if the
- monitor changed since you last made a RRGetScreenInfo request,
- perhaps by a different monitor being connected to the machine.
- Rather than allowing an incorrect call to be executed based on stale
- data, the server will ignore the request.
-
- 'x' and 'y' contain the desired location within the screen for this
- monitor's content. 'x' and 'y' must be within the screen size, else
- a Value error results.
-
- 'mode' is either the desired mode or None indicating the CRTC should
- be disabled. If 'mode' is not one of these values, a Value
- error results. 'mode' must be valid for all of the configured outputs,
- else a Match error.
-
- 'rotation' contains the desired rotation along with which
- reflections should be enabled. The rotation and reflection values
- must be among those allowed for this monitor, else a Value error
- results.
-
- 'outputs' contains the set of outputs that this CRTC should be
- connected to. The set must be among the list of acceptable output
- sets for this CRTC or a Match error results.
-
- If 'mode' is None, then 'outputs' must be empty, else a Match error
- results. Conversely, if 'mode' is not None, then 'outputs' must not be
- empty, else a Match error results.
-
- This request may fail for other indeterminate reasons, in which case
- 'status' will be set to Failed and no configuration change will be
- made.
-
- This request sets the CRTC to the specified position, mode, rotation
- and reflection. The entire area of the CRTC must fit within the
- screen size, else a Match error results. As an example, rotating the
- screen so that a single CRTC fills the entire screen before and
- after may necessitate disabling the CRTC, resizing the screen,
- then re-enabling the CRTC at the new configuration to avoid an
- invalid intermediate configuration.
-
- If panning is enabled, the width and height of the panning and the
- tracking areas are clamped to the new mode size.
- Disabled panning axes remain disabled.
- Panning borders are disabled if their requirements are no longer met
- (see RRSetPanning).
-
- When this request succeeds, 'status' contains Success and the
- requested changes to configuration will have been made.
-
- 'new-time-stamp' contains the time at which this request was
- executed.
-
-┌───
- RRGetCrtcGammaSize
- crtc: CRTC
- ▶
- size: CARD16
-└───
- Errors: Crtc
-
- This request returns the size of the gamma ramps used by 'crtc'.
-
-┌───
- RRGetCrtcGamma
- crtc: CRTC
- ▶
- red: LISTofCARD16
- green: LISTofCARD16
- blue: LISTofCARD16
-└───
- Errors: Crtc
-
- This request returns the currently set gamma ramps for 'crtc'. All
- three lists will be the size returned by the RRGetCrtcGammaSize
- request.
-
-┌───
- RRSetCrtcGamma
- crtc: CRTC
- red: LISTofCARD16
- green: LISTofCARD16
- blue: LISTofCARD16
-└───
- Errors: Crtc, Match
-
- This request sets the gamma ramps for 'crtc'. All three lists
- must be the size returned by RRGetCrtcGammaSize else a Value error
- results.
-
-7.2. Extension Requests added in version 1.3 of the extension
-
-┌───
- RRGetScreenResourcesCurrent
- window: WINDOW
- ▶
- timestamp: TIMESTAMP
- config-timestamp: TIMESTAMP
- crtcs: LISTofCRTC
- outputs: LISTofOUTPUT
- modes: LISTofMODEINFO
-└───
- Errors: Window
-
- RRGetScreenResourcesCurrent returns the list of outputs and crtcs
- connected to the screen associated with 'window'.
-
- 'timestamp' indicates when the configuration was last set.
-
- 'config-timestamp' indicates when the configuration information last
- changed. Requests to configure the output will fail unless the
- timestamp indicates that the information the client is using is up
- to date, to ensure clients can be well behaved in the face of race
- conditions.
-
- 'crtcs' contains the list of CRTCs associated with the screen.
-
- 'outputs' contains the list of outputs associated with the screen.
-
- 'modes' contains the list of modes associated with the screen.
-
- Unlike RRGetScreenResources, this merely returns the current
- configuration, and does not poll for hardware changes.
-
-┌───
- RRSetCrtcTransform
- crtc: CRTC
- transform: TRANSFORM
- filter: STRING8
- values: LISTofFIXED
-└───
- Errors: Crtc, Match
-
- This request provides a mechanism that is more general than the
- existing rotation and reflection values for describing the
- transformation from frame buffer image to crtc presentation.
- 'transform' is a full 2D projective transformation from screen
- coordinate space to crtc coordinate space. This transformation is
- applied before the rotation and reflection values to compute the
- complete transform.
-
- 'filter' and 'values' specify a Render filter that may be used by the
- server when transforming data from frame buffer to crtc.
-
- This request sets the transform to be used at the next
- RRSetCrtcConfig request execution; it does not cause any change to
- occur in the current configuration.
-
- When a non-identity transformation is in use, the rectangle returned
- by RRGetCrtcInfo defines the bounding rectangle of the screen that is
- projected to the crtc. It is this projected rectangle which must be
- within the area of the screen when the mode is set.
-
-┌───
- RRGetCrtcTransform
- crtc: CRTC
- ▶
- pending-transform: TRANSFORM
- pending-filter: STRING8
- pending-values: LISTofFIXED
- current-transform: TRANSFORM
- current-filter: STRING8
- current-values: LISTofFIXED
-└───
-
- This request returns the pending and current transforms for the
- specified CRTC. The pending transform will be the same as the current
- transform if no new pending transform has been set since the last call
- to RRSetCrtcConfig.
-
-┌───
- RRGetPanning
- crtc: CRTC
- ▶
- status: RRCONFIGSTATUS
- timestamp: TIMESTAMP
- left, top, width, height: CARD16
- track_left, track_top, track_width, track_height: CARD16
- border_left, border_top, border_right, border_bottom: INT16
-└───
-
- Errors: Crtc
-
- Version 1.3 adds panning support again. If multiple crtcs are active
- the panning behavior can be defined per crtc individually.
- RRGetPanning returns information about the currently set panning
- configuration for the specified crtc. If the CRTC does not support
- panning, all fields (except timestamp) will be 0.
-
- 'timestamp' indicates when the configuration was last set.
-
- All other entries are explained for RRSetPanning.
-
-┌───
- RRSetPanning
- crtc: CRTC
- timestamp: TIMESTAMP
- left, top, width, height: CARD16
- track_left, track_top, track_width, track_height: CARD16
- border_left, border_top, border_right, border_bottom: INT16
- ▶
- status: RRCONFIGSTATUS
- new-timestamp: TIMESTAMP
-└───
- Errors: Crtc, Match
-
- This request sets the panning parameters. As soon as panning is
- enabled, the CRTC position can change with every pointer move.
- RRCrtcChangeNotify events are sent to the clients requesting those.
-
- If 'timestamp' is less than the time when the configuration was last
- successfully set, the request is ignored and InvalidTime returned in
- status.
-
- ┌──┳━━━━━━━━━━━━━━┳─────┬ ─ ─ ─ ─ ─ ┐
- │ ┃ CRTC ┃ │
- │ ┃ ┃ │ │
- │ ┃ X┃→ │
- │ ┃ ┃ │ │ framebuffer
- │ ┗━━━━━━━━━━━━━━┛ │
- │ │ │
- │panning area │
- └───────────────────────┴ ─ ─ ─ ─ ─ ┘
-
- 'left', 'top', 'width', and 'height' contain the total panning area
- for this CRTC. 'width' has to be larger than or equal to the CRTC's
- width or 0, and 'left'+'width' must be within the screen size, else a
- Match error results. Equivalent restrictions for the height exist.
- 'width' or 'height' set to 0 indicate that panning should be disabled
- on the according axis. Setting 'width'/'height' to the CRTC's
- width/height will disable panning on the X/Y axis as well, but
- RRSetScreenSize will silently enable panning if the screen size is
- increased. This does not happen if set to 0.
-
- ┌────────┳━━━━━━━━━━━━━━┳ ─ ─ ─ ─ ─ ┐
- │ ┃ CRTC ┃
- │ ┃ ┃ │
- │ ┃ ┃
- │ ┃ ┃ │ tracking area
- │ ┗━━━━━━━━━━━━━━┫ X
- │ ↓ │ ↓ │
- │panning area │
- └───────────────────────┴ ─ ─ ─ ─ ─ ┘
-
- 'track_left', 'track_top', 'track_width', and 'track_height' contain
- the pointer area for which the panning region is updated. For normal
- use cases it should enclose the panning area minus borders, and is
- typically set to either the panning area minus borders, or to the
- total screen size. If set to the total screen size, the CRTC will pan
- in the remaining axis even if the pointer is outside the panning area
- on a different CRTC, as shown in the figure above. If the pointer is
- outside the tracking area, the CRTC will not pan. Zero can be used as
- an alias for the total screen size.
-
- ┌──┳━━━━━━━━━━━━━━┳────────────┐
- │ ┃ CRTC ┃ │
- │ ┃ ┃ │
- │ ┃ ┃→ │
- │ ┃ X←→┃ │
- │ ┃ border_right │
- │ ┗━━━━━━━━━━━━━━┛ │
- │ │
- │panning area │
- └──────────────────────────────┘
-
- 'border_left', 'border_top', 'border_right', and 'border_bottom'
- define the distances from the CRTC borders that will activate panning
- if the pointer hits them. If the borders are 0, the screen will pan
- when the pointer hits the CRTC borders (behavior of pre-RandR Xserver
- panning). If the borders are positive, the screen will pan when the
- pointer gets close to the CRTC borders, if they are negative, the
- screen will only pan when the pointer is already way past the CRTC
- borders. Negative values might confuse users and disable panning to
- the very edges of the screen. Thus they are discouraged.
- border_left + border_right has to be lower or equal than the CRTC's
- width, else a Match error results. An equivalent restriction for the
- height exists.
-
- Screen size changes update the panning and the tracking areas to the
- new size. Both screen size changes and mode changes clamp these areas
- to the current CRTC size. In these cases panning borders are disabled
- if their requirements are no longer met.
-
- When this request succeeds, 'status' contains Success and the
- requested changes to configuration will have been made.
-
- 'new-time-stamp' contains the time at which this request was
- executed.
-
-┌───
- RRSetOutputPrimary
- window: WINDOW
- output: OUTPUT
-└───
- Errors: Match, Output, Window
-
- RRSetOutputPrimary marks 'output' as the primary output for the
- screen with the same root window as 'window'. This output's CRTC
- will be sorted to the front of the list in Xinerama and RANDR
- geometry requests for the benefit of older applications. The
- default primary output is None, and None is a legal value to pass
- to RRSetOutputPrimary. This request is expected to be used by
- desktop environments to mark the screen that should hold the primary
- menu bar or panel.
-
- As this changes the logical layout of the screen, ConfigureNotify
- and RRScreenChangeNotify will be generated on the appropriate root
- window when the primary output is changed by this call. This request
- also generates RROutputChangeNotify events on the outputs that gained
- and lost primary status.
-
- If an output is disconnected asynchronously (eg. due to recabling),
- the primary status does not change, but RROutputChangeNotify events
- will be generated if the hardware is capable of detecting this;
- clients are expected to reconfigure if appropriate.
-
- If an output is deleted (eg. due to device hotplug), the server will
- act as though None was passed to RRSetOutputPrimary, including
- generating the appropriate events.
-
-┌───
- RRGetOutputPrimary
- window: WINDOW
- ▶
- output: OUTPUT
-└───
- Errors: Window
-
- RRGetOutputPrimary returns the primary output for the screen.
-
- ❧❧❧❧❧❧❧❧❧❧❧
-
-7.3. Extension Requests added in version 1.4 of the extension.
-
-┌───
- RRQueryScanoutPixmaps
- window: WINDOW
- ▶
- infos: LISTofSCANOUTPIXMAPINFO
-└───
- Errors: Window
-
- This request returns information about the server support for
- alternate scanout pixmaps. For each pictformat, there is a set
- of rotations and a maximum supported size. The rotations here
- are those provided by the scanout hardware itself, not by
- software emulation.
-
-┌───
- RRCreateScanoutPixmap
- pixmap: PIXMAP
- drawable: DRAWABLE
- width, height: CARD16
- format: PICTFORMAT
- rotations: SETofROTATION
-└───
- Errors: Drawable, Match, Value
-
- Creates a pixmap which can subsequently be used as a scanout
- buffer for the screen associated with 'drawable'. 'rotations'
- is the set of rotation values which may be used with the
- resulting scanout buffer when it is associated with a CRTC.
-
- 'format' must be one of the supported scanout formats, or a
- Match error results.
-
- 'width' and 'height' must be within the supported range for
- the specified format or a Value error results.
-
- 'rotations' must be a subset of those supported for the
- specified format or a Match error results.
-
-┌───
- RRSetCrtcSpriteTransform
- crtc: CRTC
- position-transform: TRANSFORM
- image-transform: TRANSFORM
-└───
- Sets the sprite transforms for the specified crtc, any sprites
- presented on this crtc will have their positions transformed
- by the position-transform matrix. Sprite images displayed on the crtc
- will be transformed by the image-transform matrix.
-
-┌───
- RRGetCrtcSpriteTransform
- crtc: CRTC
- ▶
- position-transform: TRANSFORM
- image-transform: TRANSFORM
-└───
- Gets the sprite transforms for the specified crtc.
-
-┌───
- RRSetCrtcConfigs
- drawable: DRAWABLE
- screen-pixmap-width: CARD16
- screen-pixmap-height: CARD16
- screen-width: CARD16
- screen-height: CARD16
- width-in-millimeters: CARD32
- height-in-millimeters: CARD32
- configs: LISTofCRTCCONFIG
- ▶
- status: RRCONFIGSTATUS
-└───
- Errors: Value, Match
-
- This works much like RRSetScreenSize followed by a sequence of
- RRSetCrtcConfig, except that the entire configuration is set
- in a single operation, either succeeding or failing without
- any partial execution.
-
- In addition to the pre-1.4 semantics, this request adds the
- ability to specific a scanout pixmap for each crtc, and
- integrates the 1.4 sprite transform request as well.
-
- ❧❧❧❧❧❧❧❧❧❧❧
-
-8. Extension Events
-
-Clients MAY select for ConfigureNotify on the root window to be
-informed of screen changes. This may be advantageous if all your
-client needs to know is the size of the root window, as it avoids
-round trips to set up the extension.
-
-RRScreenChangeNotify is sent if RRSelectInput has requested it
-whenever properties of the screen change, which may be due to external
-factors, such as re-cabling a monitor, etc.
-
-┌───
- RRScreenChangeNotify
-
- rotation: ROTATION; new rotation
- sequenceNumber: CARD16 low 16 bits of request seq. number
- timestamp: TIMESTAMP time screen was changed
- configTimestamp: TIMESTAMP time config data was changed
- root: WINDOW root window of screen
- window: WINDOW window requesting notification
- size-id: SIZEID index of new SCREENSIZE
- subpixelOrder: SUBPIXELORDER order of subpixels
- widthInPixels: CARD16 width in pixels of the new SCREENSIZE
- heightInPixels: CARD16 height in pixels of the new SCREENSIZE
- widthInMillimeters: CARD16 width in mm of the new SCREENSIZE
- heightInMillimeters: CARD16 height in mm of the new SCREENSIZE
-└───
- This event is generated whenever the screen configuration is changed
- and sent to requesting clients. 'timestamp' indicates when the
- screen configuration was changed. 'configTimestamp' says when the
- last time the configuration was changed. 'root' is the root of the
- screen the change occurred on, 'window' is window selecting for this
- event. 'size-id' contains the index of the current size.
-
- This event is sent whenever the screen's configuration changes
- or if a new screen configuration becomes available that was
- not available in the past. In this case (config-timestamp in
- the event not being equal to the config-timestamp returned in
- the last call to RRGetScreenInfo), the client MUST call
- RRGetScreenInfo to update its view of possible screen
- configurations to have a correct view of possible screen
- organizations.
-
- Clients which select screen change notification events may be
- sent an event immediately if the screen configuration was
- changed between when they connected to the X server and
- selected for notification. This is to prevent a common race
- that might occur on log-in, where many applications start up
- just at the time when a display manager or log in script might
- be changing the screen size or configuration.
-
- Note that the sizes in this event reflect the new SCREENSIZE and
- thus will appear rotated by the 'rotation' parameter from the sizes
- of the screen itself. In other words, when rotation is 90 or 270,
- widthInPixels in this event will be the same as the height value
- from a ConfigureNotify that reflects the same size change. This
- will probably confuse developers.
-
-8.1 Events added in version 1.2 of the RandR extension
-
-┌───
- RROutputChangeNotify:
- timestamp: TIMESTAMP time screen was reconfigured
- config-timestamp: TIMESTAMP time available config data was changed
- window: WINDOW window requesting notification
- output: OUTPUT output affected by change
- crtc: CRTC connected CRTC or None
- mode: MODE mode in use on CRTC or None
- connection: CONNECTION connection status
-└───
-
- This event is generated whenever the available output configurations
- have changed and is sent to requesting clients. 'timestamp'
- indicates when the crtc configuration was changed by a client.
- 'config-timestamp' says when the last time the available
- configurations changed. 'root' is the root of the screen the change
- occurred on, 'window' is window selecting for this event. The
- precise change can be detected by examining the new state of the
- system.
-
-┌───
- RROutputPropertyNotify:
- window: WINDOW window requesting notification
- output: OUTPUT output affected by change
- atom: ATOM affected property
- time: TIMESTAMP time property was changed
- subpixel-order: SUBPIXELORDER order of subpixels
- state: { NewValue, Deleted } new property state
-└───
-
- This event is reported to clients selecting RROutputPropertyChange
- on the window and is generated with state NewValue when a property
- of the window is changed using RRChangeOutputProperty even when
- adding zero-length data and when replacing all or part of a property
- with identical data. It is generated with state Deleted when a
- property of the window is deleted using either
- RRDeleteOutputProperty or RRGetOutputProperty. The timestamp
- indicates the server time when the property was changed.
-
-┌───
- RRCrtcChangeNotify
- timestamp: TIMESTAMP time monitor was changed
- window: WINDOW window requesting notification
- crtc: CRTC CRTC which changed
- mode: MODE new mode
- rotation: ROTATION; new rotation
- x: INT16 x position of CRTC within screen
- y: INT16 y position of CRTC within screen
- width: CARD16 width of new mode
- height: CARD16 height of new mode
-└───
- This event is generated whenever the CRTC configuration is changed
- and sent to requesting clients. 'timestamp' indicates when the
- CRTC configuration was changed. 'window' is window selecting for this
- event. 'mode' is the new mode, or None if the crtc is disabled.
- 'x' and 'y' mark the location in the screen where this CRTC
- is reading data. 'width' and 'height' indicate the size of the
- mode. 'x', 'y, 'width' and 'height' are all zero when 'mode' is None.
-
- This event is sent whenever the monitor's configuration changes
- or if a new monitor configuration becomes available that was
- not available in the past. In this case, the client MUST call
- RRGetCrtcModes to update its view of possible monitor
- configurations to have a correct view of possible monitor
- organizations.
-
- Clients which select monitor change notification events may be
- sent an event immediately if the monitor configuration was
- changed between when they connected to the X server and
- selected for notification. This is to prevent a common race
- that might occur on log-in, where many applications start up
- just at the time when a display manager or log in script might
- be changing the monitor size or configuration.
-
- ❧❧❧❧❧❧❧❧❧❧❧
-
-9. Properties
-
-Properties are used for output specific parameters, and for announcing
-static or rarely changing data. Announced data is typically
-immutable. Properties are also used for evaluating new parameters
-before adding them to the RandR protocol.
-
-The following properties are hereby declared official, and drivers SHOULD
-prefix driver specific properties with '_', unless they are planned to be
-added to this specification. List values, that are not declared by the table
-below, and will remain driver specific or are not planned to be added to this
-specification, SHOULD be prefixed with "_" as well in order to avoid name
-space or semantics clashes with future extensions of these values.
-
-Beginning with version 1.3 of the RandR extension, certain properties
-are mandatory and MUST be provided by implementations. Earlier
-versions of the RandR extension MAY provide these properties as well,
-as long as the semantics are not altered. Clients SHOULD fall back
-gracefully to lower version functionality, though, if the driver
-doesn't handle a mandatory property correctly.
-
-9.1 Known properties
-
- "Backlight" aka RR_PROPERTY_BACKLIGHT
- Type: int32
- Flags: -
- Range/List: 0-x (driver specific)
-
- This property controls the brightness on laptop panels and equivalent
- displays with a backlight controller. The driver specific maximum
- value MUST turn the backlight to full brightness, 1 SHOULD turn the
- backlight to minimum brightness, 0 SHOULD turn the backlight off.
-
- "CloneList" aka RR_PROPERTY_CLONE_LIST
- Type: int32 [2*n] / Atom pairs
- Flags: Immutable
- Range/List: 0-
-
- Some combinations of outputs on some cards cannot be served
- independently from each other, because they are wired up to the same
- encoder outputs.
- This property lists all output + signal format pairs that are
- driven together with this output, and thus can only be programmed in
- clone mode with the same CRTC.
- This property MUST be symmetric, but may change with changing signal
- format. I.e. if the property for DVI-1/VGA specifies VGA-1/VGA to be
- cloned, VGA-1/VGA has to list DVI-1/VGA as well.
- Outputs / format pairs listed in this property MUST be included in the
- CompatibilityList.
-
- "CompatibilityList" aka RR_PROPERTY_COMPATIBILITY_LIST
- Type: int32 [2*n] / Atom pairs
- Flags: Immutable
- Range/List: 0-
-
- Some combinations of outputs on some cards cannot be served at all,
- because the according encoder is only capable of driving one output at
- a time.
- This property lists all output + signal format pairs that can be
- driven together with this output. NULL atoms specify any output / any
- signal format, respectively.
- This property MUST be symmetric, but may change with changing signal
- format. I.e. if the property for DVI-1/TMDS specifies VGA-1/VGA to be
- available, VGA-1/VGA has to list DVI-1/TMDS as well.
-
- "ConnectorNumber" aka RR_PROPERTY_CONNECTOR_NUMBER
- Type: int32
- Flags: Immutable, Static
- Range/List: 0-
-
- Outputs that route their signal to the same connector MUST
- have the same connector number. Outputs with the same
- connector number MUST route their signal to the same
- connector, except if it is 0, which indicates unknown
- connectivity. 1 is called the primary connector, 2 the
- secondary. 3 is typically a TV connector, but that is completely
- driver / hardware dependent.
- Outputs with the same connector number SHOULD have the same
- connector type. Meaning and client behavior for mismatching
- connector types is undefined at the moment.
-
- "ConnectorType" aka RR_PROPERTY_CONNECTOR_TYPE
- Type: int32 / Atom
- Flags: Immutable, Static
- Range/List: unknown VGA DVI DVI‐I DVI‐A DVI‐D HDMI Panel
- TV TV-Composite TV-SVideo TV-Component
- TV-SCART TV-C4 DisplayPort
-
- Connector type, as far as known to the driver.
- Values with dashes (TV‐Composite) describe more specific versions of
- the base values (TV). The former SHOULD be used if the connector is
- not capable of producing other signal formats. The later SHOULD be
- used if the exact connector is unknown, or the connector is a
- multi‐format connector that is not described otherwise. DVI, for
- instance, SHOULD be handled like a DVI‐I connector, unless additional
- information is available to the user agent. PANEL describes
- laptop‐internal (normally LVDS) displays. TV, TV‐SCART, TV‐Component,
- and TV‐C4 with signal format VGA are valid combinations and describe
- RGB TV signals.
-
- "EDID" aka RR_PROPERTY_RANDR_EDID
- Type: int8 [n]
- Flags: Immutable
- Range/List: -
-
- Raw EDID data from the device attached to the according
- output. Should include main EDID data and all extension
- blocks. Previously known as EdidData.
-
- "SignalFormat" aka RR_PROPERTY_SIGNAL_FORMAT
- Type: int32 / Atom
- Flags: -
- Range/List: unknown VGA TMDS LVDS Composite Composite-PAL
- Composite-NTSC Composite-SECAM SVideo
- Component DisplayPort
-
- Signal format / physical protocol format that is used for the
- specified output. valid-values lists all possible formats on this
- output, which SHOULD be a subset of the list above and MUST be static.
- Values with dashes (Composite-PAL) describe more specific versions of
- the base values (Composite) and SHOULD be used if known to the driver.
- A driver MAY change this property of an output if the underlying
- hardware indicates a protocol change (e.g. TV formats). Clients are
- allowed to change the signal format in order to select a different
- signal format (e.g. Composite etc.) or physical protocol (e.g. VGA or
- TMDS on DVI-I).
- Laptop panels SHOULD not be detected with this property, but rather by
- ConnectorType.
-
- "SignalProperties" aka RR_PROPERTY_SIGNAL_FORMAT
- Type: int32 [n] / Atom
- Flags: -
- Range/List: For Composite signals:
- NTSC NTSC-M NTSC-J NTSC-N NTSC-4.43 NTSC-film
- PAL PAL-B PAL-G PAL-H PAL-H PAL-I PAL-M PAL-D
- PAL-N PAL-Nc PAL-L PAL-60
- SECAM SECAM-L SECAM-B SECAM-G SECAM-D SECAM-K
- SECAM-H SECAM-K
- For TMDS signals:
- SingleLink DualLink
- For DisplayPort signals:
- Lane1 Lane2 Lane4 LowSpeed HiSpeed
-
- Properties of the signal format that is currently used for the
- specified output. valid-values lists all possible properties on this
- output, which SHOULD be a subset of the list above. It will change if
- SignalFormat changes. Multiple properties are allowed.
- Values with dashes (PAL-B) describe more specific versions of the base
- values (PAL) and SHOULD be used if known to the driver. A driver MAY
- change this property of an output if the underlying hardware indicates
- a signal change (e.g. TV formats). Clients are allowed to change the
- properties in order to select a different signal subformat.
-
-
-9.2 Properties introduced with version 1.2 of the RandR extension
-
-Property Immutable Mandatory since
-──────── ───────── ───────────────
-EDID yes n/a
-
-EDID is provided by the RandR frontend, thus not driver specific.
-
-
-9.3 Properties introduced with version 1.3 of the RandR extension
-
-Property Immutable Mandatory since
-──────── ───────── ───────────────
-CloneList yes not mandatory
-CompatibilityList yes not mandatory
-ConnectorNumber yes: static not mandatory
-ConnectorType yes: static RandR 1.3
-SignalFormat no RandR 1.3
-SignalProperties no not mandatory
-
-9.4 Properties introduced with version 1.3.1 of the RandR extension
-
-Property Immutable Mandatory since
-──────── ───────── ───────────────
-Backlight no not mandatory
-
- ❧❧❧❧❧❧❧❧❧❧❧
-
-10. Extension Versioning
-
-The RandR extension was developed in parallel with the implementation
-to ensure the feasibility of various portions of the design. As
-portions of the extension are implemented, the version number of the
-extension has changed to reflect the portions of the standard provided.
-This document describes the version 1.2 of the specification, the
-partial implementations have version numbers less than that. Here's a
-list of what each version provided:
-
- 0.0: This prototype implemented resize and rotation in the
- TinyX server Used approximately the protocol described in
- the Usenix paper. Appeared in the TinyX server in
- XFree86 4.2, but not in the XFree86 main server.
-
- 0.1: Added subpixel order, added an event for subpixel order.
- This version was never checked in to XFree86 CVS.
-
- 1.0: Implements resize, rotation, and reflection. Implemented
- both in the XFree86 main server (size change only at this
- date), and fully (size change, rotation, and reflection)
- in XFree86's TinyX server.
-
- 1.1: Added refresh rates
-
- 1.2: Separate screens from CRTCs and outputs, switch to full VESA
- modes
-
- 1.3: Added cheap version of RRGetScreenResources. Added CRTC
- transformations. Added panning. Added primary outputs.
- Added standard properties.
-
-Compatibility between 0.0 and 1.0 was *NOT* preserved, and 0.0 clients
-will fail against 1.0 servers. The wire encoding op-codes were
-changed for GetScreenInfo to ensure this failure in a relatively
-graceful way. Version 1.1 servers and clients are cross compatible with
-1.0. Version 1.1 is considered to be stable and we intend upward
-compatibility from this point. Version 1.2 offers an extended model of the
-system with multiple output support. Version 1.3 adds a cheap version of
-GetScreenResources to avoid expensive DDC operations, CRTC transformations,
-panning, and the primary output concept. 1.2 and 1.3 are backward-compatible
-with 1.1.
-
- ❧❧❧❧❧❧❧❧❧❧❧
-
-11. Relationship with other extensions
-
-Two other extensions have a direct relationship with this extension. This
-section attempts to explain how these three are supposed to work together.
-
-11.1 XFree86-VidModeExtension
-
-XFree86-VidModeExtension changes the configuration of a single monitor
-attached to the screen without changing the configuration of the screen
-itself. It provides the ability to specify new mode lines for the server to
-use along with selecting among existing mode lines. As it uses screen
-numbers instead of window identifiers, it can be used to affect multiple
-monitors in a single-screen Xinerama configuration. However, the association
-between screen numbers and root windows in a multi-Screen environment is not
-defined by the extension. Version 2.0 of this extension added the ability to
-adjust the DAC values in a TrueColor server to modify the brightness curves
-of the display.
-
-All of the utility of this extension is subsumed by RandR version 1.2, RandR
-should be used in preference to XFree86-VidModeExtension where both are
-present.
-
-11.2 Xinerama
-
-Xinerama provides a mechanism for describing the relationship between the
-overall screen display and monitors placed within that area. As such, it
-provides the query functionality of RandR 1.2 without any of the
-configuration functionality. Applications using Xinerama to discover
-monitor geometry can continue to do so, with the caveat that they will not be
-informed of changes when they occur. However, Xinerama configuration data
-will be updated, so applications selecting for RandR notification and
-re-querying the configuration with the Xinerama extension will get updated
-information. It is probably better to view RandR as a superset of Xinerama
-at this point and use it in preference to Xinerama where both are present.
-
- ❧❧❧❧❧❧❧❧❧❧❧
-
-Appendix A. Protocol Encoding
-
-Syntactic Conventions
-
-This document uses the same syntactic conventions as the core X
-protocol encoding document.
-
-A.1 Common Types
-
-┌───
- ROTATION
- 0x0001 Rotate_0
- 0x0002 Rotate_90
- 0x0004 Rotate_180
- 0x0008 Rotate_270
- 0x0010 Reflect_X
- 0x0020 Reflect_Y
-└───
- Used to encode both sets of possible rotations and individual
- selected rotations.
-
-┌───
- RRSELECTMASK
- 0x0001 ScreenChangeNotifyMask
- 0x0002 CrtcChangeNotifyMask Added in version 1.2
- 0x0004 OutputChangeNotifyMask Added in version 1.2
- 0x0008 OutputPropertyNotifyMask Added in version 1.2
-└───
- Event select mask for RRSelectInput
-
-┌───
- RRCONFIGSTATUS
- 0x0 Success
- 0x1 InvalidConfigTime
- 0x2 InvalidTime
- 0x3 Failed
-└───
- Return status for requests which depend on time.
-
-┌───
- MODEINFO (32) Added in version 1.2
- 4 CARD32 id
- 2 CARD16 width in pixels
- 2 CARD16 height in pixels
- 4 CARD32 dot clock
- 2 CARD16 h sync start
- 2 CARD16 h sync end
- 2 CARD16 h total
- 2 CARD16 h skew
- 2 CARD16 v sync start
- 2 CARD16 v sync end
- 2 CARD16 v total
- 2 CARD16 name length
- 4 SETofMODEFLAG mode flags
-└───
-
- An output mode specifies the complete CRTC timings for
- a specific mode. The vertical and horizontal synchronization rates
- can be computed given the dot clock and the h total/v total
- values. If the dot clock is zero, then all of the timing
- parameters and flags are not used, and must be zero as this
- indicates that the timings are unknown or otherwise unused.
- The name itself will be encoded separately in each usage.
-
-┌───
- MODEFLAG
- 0x00000001 HSyncPositive
- 0x00000002 HSyncNegative
- 0x00000004 VSyncPositive
- 0x00000008 VSyncNegative
- 0x00000010 Interlace
- 0x00000020 DoubleScan
- 0x00000040 CSync
- 0x00000080 CSyncPositive
- 0x00000100 CSyncNegative
- 0x00000200 HSkewPresent
- 0x00000400 BCast
- 0x00000800 PixelMultiplex
- 0x00001000 DoubleClock
- 0x00002000 ClockDivideBy2
-└───
-┌───
- CONNECTION
- 0 Connected
- 1 Disconnected
- 2 UnknownConnection
-└───
-
-
-A.2 Protocol Requests
-
-Opcodes 1 and 3 were used in the 0.0 protocols, and will return
-errors if used in version 1.0.
-
-┌───
- RRQueryVersion
-
- 1 CARD8 major opcode
- 1 0 RandR opcode
- 2 3 length
- 4 CARD32 major version
- 4 CARD32 minor version
- ▶
- 1 1 Reply
- 1 unused
- 2 CARD16 sequence number
- 4 0 reply length
- 1 CARD32 major version
- 1 CARD32 minor version
-└───
-┌───
- RRSetScreenConfig
-
- 1 CARD8 major opcode
- 1 2 RandR opcode
- 2 6 length
- 4 WINDOW window on screen to be configured
- 4 TIMESTAMP timestamp
- 4 TIMESTAMP config timestamp
- 2 SIZEID size index
- 2 ROTATION rotation/reflection
- 2 CARD16 refresh rate (1.1 only)
- 2 CARD16 pad
- ▶
- 1 1 Reply
- 1 RRCONFIGSTATUS status
- 2 CARD16 sequence number
- 4 0 reply length
- 4 TIMESTAMP new timestamp
- 4 TIMESTAMP new configuration timestamp
- 4 WINDOW root
- 2 SUBPIXELORDER subpixel order defined in Render
- 2 CARD16 pad4
- 4 CARD32 pad5
- 4 CARD32 pad6
-└───
-┌───
- RRSelectInput
-
- 1 CARD8 major opcode
- 1 4 RandR opcode
- 2 3 length
- 4 WINDOW window
- 2 SETofRRSELECTMASK enable
- 2 CARD16 pad
-└───
-┌───
- RRGetScreenInfo
-
- 1 CARD8 major opcode
- 1 5 RandR opcode
- 2 2 length
- 4 WINDOW window
- ▶
- 1 1 Reply
- 1 CARD8 set of Rotations
- 2 CARD16 sequence number
- 4 0 reply length
- 4 WINDOW root window
- 4 TIMESTAMP timestamp
- 4 TIMESTAMP config timestamp
- 2 CARD16 number of SCREENSIZE following
- 2 SIZEID current size index
- 2 ROTATION current rotation and reflection
- 2 CARD16 current rate (added in version 1.1)
- 2 CARD16 length of rate info (number of CARD16s)
- 2 CARD16 pad
-
- SCREENSIZE
- 2 CARD16 width in pixels
- 2 CARD16 height in pixels
- 2 CARD16 width in millimeters
- 2 CARD16 height in millimeters
-
- REFRESH
- 2 CARD16 number of rates (n)
- 2n CARD16 rates
-└───
-
-A.2.1 Protocol Requests added with version 1.2
-
-┌───
- RRGetScreenSizeRange
- 1 CARD8 major opcode
- 1 6 RandR opcode
- 2 2 length
- 4 WINDOW window
- ▶
- 1 1 Reply
- 1 unused
- 2 CARD16 sequence number
- 4 0 reply length
- 2 CARD16 minWidth
- 2 CARD16 minHeight
- 2 CARD16 maxWidth
- 2 CARD16 maxHeight
- 16 unused
-└───
-┌───
- RRSetScreenSize
- 1 CARD8 major opcode
- 1 7 RandR opcode
- 2 5 length
- 4 WINDOW window
- 2 CARD16 width
- 2 CARD16 height
- 4 CARD32 width in millimeters
- 4 CARD32 height in millimeters
-└───
-┌───
- RRGetScreenResources
- 1 CARD8 major opcode
- 1 8 RandR opcode
- 2 2 length
- 4 WINDOW window
- ▶
- 1 1 Reply
- 1 unused
- 2 CARD16 sequence number
- 4 c+o+8m+(b+p)/4 reply length
- 4 TIMESTAMP timestamp
- 4 TIMESTAMP config-timestamp
- 2 c number of CRTCs
- 2 o number of outputs
- 2 m number of modeinfos
- 2 b total bytes in mode names
- 8 unused
- 4c LISTofCRTC crtcs
- 4o LISTofOUTPUT outputs
- 32m LISTofMODEINFO modeinfos
- b STRING8 mode names
- p unused, p=pad(b)
-└───
-┌───
- RRGetOutputInfo
- 1 CARD8 major opcode
- 1 9 RandR opcode
- 2 3 length
- 4 OUTPUT output
- 4 TIMESTAMP config-timestamp
- ▶
- 1 1 Reply
- 1 RRCONFIGSTATUS status
- 2 CARD16 sequence number
- 4 1+c+m+(n+p)/4 reply length
- 4 TIMESTAMP timestamp
- 4 CRTC current connected crtc
- 4 CARD32 width in millimeters
- 4 CARD32 height in millimeters
- 1 CONNECTION connection
- 1 SUBPIXELORDER subpixel-order
- 2 c number of CRTCs
- 2 m number of modes
- 2 p number of preferred modes
- 2 o number of clones
- 2 n length of name
- 4c LISTofCRTC crtcs
- 4m LISTofMODE modes
- 4o LISTofOUTPUT clones
- n STRING8 name
- p unused, p=pad(n)
-└───
-┌───
- RRListOutputProperties
- 1 CARD8 major opcode
- 1 10 RandR opcode
- 2 2 length
- 4 OUTPUT output
- ▶
- 1 1 Reply
- 1 unused
- 2 CARD16 sequence number
- 4 n reply length
- 2 n number of ATOMs in atoms
- 22 unused
- 4n LISTofATOM atoms
-└───
-┌───
- RRQueryOutputProperty
- 1 CARD8 major opcode
- 1 11 RandR opcode
- 2 3 request length
- 4 OUTPUT output
- 4 ATOM property
- ▶
- 1 1 Reply
- 1 unused
- 2 CARD16 sequence number
- 4 n reply length
- 1 BOOL pending
- 1 BOOL range
- 1 BOOL immutable
- 21 unused
- 4n LISTofINT32 valid values
-└───
-┌───
- RRConfigureOutputProperty
- 1 CARD8 major opcode
- 1 12 RandR opcode
- 2 4+n request length
- 4 OUTPUT output
- 4 ATOM property
- 1 BOOL pending
- 1 BOOL range
- 2 unused
- 4n LISTofINT32 valid values
-└───
-┌───
- RRChangeOutputProperty
- 1 CARD8 major opcode
- 1 13 RandR opcode
- 2 6+(n+p)/4 request length
- 4 OUTPUT output
- 4 ATOM property
- 4 ATOM type
- 1 CARD8 format
- 1 mode
- 0 Replace
- 1 Prepend
- 2 Append
- 2 unused
- 4 CARD32 length of data in format units
- (= n for format = 8)
- (= n/2 for format = 16)
- (= n/4 for format = 32)
- n LISTofBYTE data
- (n is a multiple of 2 for format = 16)
- (n is a multiple of 4 for format = 32)
- p unused, p=pad(n)
-└───
-┌───
- RRDeleteOutputProperty
- 1 CARD8 major opcode
- 1 14 RandR opcode
- 2 3 request length
- 4 OUTPUT output
- 4 ATOM property
-└───
-┌───
- RRGetOutputProperty
- 1 CARD8 major opcode
- 1 15 RandR opcode
- 2 7 request length
- 4 OUTPUT output
- 4 ATOM property
- 4 ATOM type
- 0 AnyPropertyType
- 4 CARD32 long-offset
- 4 CARD32 long-length
- 1 BOOL delete
- 1 BOOL pending
- 2 unused
- ▶
- 1 1 Reply
- 1 CARD8 format
- 2 CARD16 sequence number
- 4 (n+p)/4 reply length
- 4 ATOM type
- 0 None
- 4 CARD32 bytes-after
- 4 CARD32 length of value in format units
- (= 0 for format = 0)
- (= n for format = 8)
- (= n/2 for format = 16)
- (= n/4 for format = 32)
- 12 unused
- n LISTofBYTE value
- (n is zero for format = 0)
- (n is a multiple of 2 for format = 16)
- (n is a multiple of 4 for format = 32)
- p unused, p=pad(n)
-└───
-┌───
- RRCreateMode
- 1 CARD8 major opcode
- 1 16 RandR opcode
- 2 12+(n+p)/4 length
- 4 WINDOW window
- 32 MODEINFO mode
- n STRING8 mode name
- p unused, p=pad(n)
- ▶
- 1 1 Reply
- 1 unused
- 2 CARD16 sequence number
- 4 0 reply length
- 4 MODE mode
- 20 unused
-└───
-┌───
- RRDestroyMode
- 1 CARD8 major opcode
- 1 17 RandR opcode
- 2 2 length
- 4 MODE mode
-└───
-┌───
- RRAddOutputMode
- 1 CARD8 major opcode
- 1 18 RandR opcode
- 2 3 length
- 4 OUTPUT output
- 4 MODE mode
-└───
-┌───
- RRDeleteOutputMode
- 1 CARD8 major opcode
- 1 19 RandR opcode
- 2 3 length
- 4 OUTPUT output
- 4 MODE mode
-└───
-┌───
- RRGetCrtcInfo
- 1 CARD8 major opcode
- 1 20 RandR opcode
- 2 3 length
- 4 CRTC crtc
- 4 TIMESTAMP config-timestamp
- ▶
- 1 1 Reply
- 1 RRCONFIGSTATUS status
- 2 CARD16 sequence number
- 4 o+p reply length
- 4 TIMESTATMP timestamp
- 2 INT16 x
- 2 INT16 y
- 2 CARD16 width
- 2 CARD16 height
- 4 MODE mode
- 2 ROTATION current rotation and reflection
- 2 ROTATION set of possible rotations
- 2 o number of outputs
- 2 p number of possible outputs
- 4o LISTofOUTPUT outputs
- 4p LISTofOUTPUT possible outputs
-└───
-┌───
- RRSetCrtcConfig
- 1 CARD8 major opcode
- 1 21 RandR opcode
- 2 7+2n length
- 4 CRTC crtc
- 4 TIMESTAMP timestamp
- 4 TIMESTAMP config timestamp
- 2 INT16 x
- 2 INT16 y
- 4 MODE mode
- 2 ROTATION rotation/reflection
- 2 unused
- 8n LISTofOUTPUT outputs
- ▶
- 1 1 Reply
- 1 RRCONFIGSTATUS status
- 2 CARD16 sequence number
- 4 0 reply length
- 4 TIMESTAMP new timestamp
- 20 unused
-└───
-┌───
- RRGetCrtcGammaSize
- 1 CARD8 major opcode
- 1 22 RandR opcode
- 2 2 length
- 4 CRTC crtc
- ▶
- 1 1 Reply
- 1 unused
- 2 CARD16 sequence number
- 4 0 reply length
- 2 CARD16 size
- 22 unused
-└───
-┌───
- RRGetCrtcGamma
- 1 CARD8 major opcode
- 1 23 RandR opcode
- 2 2 length
- 4 CRTC crtc
- ▶
- 1 1 Reply
- 1 unused
- 2 CARD16 sequence number
- 4 (6n+2)/4 reply length
- 2 n size
- 20 unused
- 2n LISTofCARD16 red
- 2n LISTofCARD16 green
- 2n LISTofCARD16 blue
- p unused, p=pad(6n)
-└───
-┌───
- RRSetCrtcGamma
- 1 CARD8 major opcode
- 1 24 RandR opcode
- 2 3+(6n+2)/4 length
- 4 CRTC crtc
- 2 n size
- 2 unused
- 2n LISTofCARD16 red
- 2n LISTofCARD16 green
- 2n LISTofCARD16 blue
- p unused, p=pad(6n)
-└───
-
-A.2.2 Protocol Requests added with version 1.3
-
-┌───
- RRGetScreenResourcesCurrent
- 1 CARD8 major opcode
- 1 25 RandR opcode
- 2 2 length
- 4 WINDOW window
- ▶
- 1 1 Reply
- 1 unused
- 2 CARD16 sequence number
- 4 c+o+8m+(b+p)/4 reply length
- 4 TIMESTAMP timestamp
- 4 TIMESTAMP config-timestamp
- 2 c number of CRTCs
- 2 o number of outputs
- 2 m number of modeinfos
- 2 b total bytes in mode names
- 8 unused
- 4c LISTofCRTC crtcs
- 4o LISTofOUTPUT outputs
- 32m LISTofMODEINFO modeinfos
- b STRING8 mode names
- p unused, p=pad(b)
-└───
-
-┌───
- RRSetCrtcTransform
- 1 CARD8 major opcode
- 1 26 RandR opcode
- 2 12+(n+p)/4+v length
- 4 CRTC crtc
- 36 TRANSFORM transform
- 2 CARD16 filter length
- 2 unused
- n STRING8 filter name
- p unused, p=pad(n)
- 4v FIXED filter params
-└───
-
-┌───
- RRGetCrtcTransform
- 1 CARD8 major opcode
- 1 27 RandR opcode
- 2 2 length
- 4 CRTC crtc
- ▶
- 1 1 Reply
- 1 unused
- 2 CARD16 sequence number
- 4 16+(pn+pnp)/4+(cn+cnp)/4+pf+cf reply length
- 36 TRANSFORM pending transform
- 1 BOOL has transforms
- 3 unused
- 36 TRANSFORM current transform
- 4 unused
- 2 pn pending filter name length
- 2 pf pending filter num params
- 2 cn current filter name length
- 2 cf current filter num params
- pn STRING8 pending filter name
- pnp unused, pnp=pad(pn)
- 4*pf FIXED pending filter params
- cn STRING8 current filter name
- cnp unused, cnp=pad(cn)
- 4*cf FIXED current filter params
-└───
-
-┌───
- RRGetPanning
- 1 CARD8 major opcode
- 1 28 RandR opcode
- 2 2 length
- 4 CRTC crtc
- ▶
- 1 1 Reply
- 1 RRCONFIGSTATUS status
- 2 CARD16 sequence number
- 4 1 reply length
- 4 TIMESTAMP timestamp
- 2 CARD16 left
- 2 CARD16 top
- 2 CARD16 width
- 2 CARD16 height
- 2 CARD16 track_left
- 2 CARD16 track_top
- 2 CARD16 track_width
- 2 CARD16 track_height
- 2 INT16 border_left
- 2 INT16 border_top
- 2 INT16 border_right
- 2 INT16 border_bottom
-└───
-┌───
- RRSetPanning
- 1 CARD8 major opcode
- 1 29 RandR opcode
- 2 9 length
- 4 CRTC crtc
- 4 TIMESTAMP timestamp
- 2 CARD16 left
- 2 CARD16 top
- 2 CARD16 width
- 2 CARD16 height
- 2 CARD16 track_left
- 2 CARD16 track_top
- 2 CARD16 track_width
- 2 CARD16 track_height
- 2 INT16 border_left
- 2 INT16 border_top
- 2 INT16 border_right
- 2 INT16 border_bottom
- ▶
- 1 1 Reply
- 1 RRCONFIGSTATUS status
- 2 CARD16 sequence number
- 4 0 reply length
- 4 TIMESTAMP new timestamp
- 20 unused
-└───
-
-┌───
- RRSetOutputPrimary
- 1 CARD8 major opcode
- 1 30 RandR opcode
- 2 3 length
- 4 WINDOW window
- 4 OUTPUT output
-└───
-
-┌───
- RRGetOutputPrimary
- 1 CARD8 major opcode
- 1 31 RandR opcode
- 2 2 length
- 4 WINDOW window
- ▶
- 1 1 Reply
- 1 unused
- 2 CARD16 sequence number
- 4 CARD32 length
- 4 OUTPUT output
- 4 CARD32 pad1
- 4 CARD32 pad2
- 4 CARD32 pad3
- 4 CARD32 pad4
-└───
-
-A.3 Protocol Events
-
-┌───
- RRScreenChangeNotify
- 1 Base + 0 code
- 1 ROTATION new rotation and reflection
- 2 CARD16 sequence number
- 4 TIMESTAMP timestamp
- 4 TIMESTAMP configuration timestamp
- 4 WINDOW root window
- 4 WINDOW request window
- 2 SIZEID size ID
- 2 SUBPIXELORDER subpixel order defined in Render
- 2 CARD16 width in pixels
- 2 CARD16 height in pixels
- 2 CARD16 width in millimeters
- 2 CARD16 height in millimeters
-└───
-
-A.3.1 Protocol Events added with version 1.2
-
-┌───
- RRCrtcChangeNotify
- 1 Base + 1 code
- 1 0 sub-code
- 2 CARD16 sequence number
- 4 TIMESTAMP timestamp
- 4 WINDOW request window
- 4 CRTC crtc affected
- 4 MODE mode in use
- 2 ROTATION new rotation and reflection
- 2 unused
- 2 INT16 x
- 2 INT16 y
- 2 CARD16 width
- 2 CARD16 height
-└───
-┌───
- RROutputChangeNotify
- 1 Base + 1 code
- 1 1 sub-code
- 2 CARD16 sequence number
- 4 TIMESTAMP timestamp
- 4 TIMESTAMP configuration timestamp
- 4 WINDOW request window
- 4 OUTPUT output affected
- 4 CRTC crtc in use
- 4 MODE mode in use
- 2 ROTATION rotation in use
- 1 CONNECTION connection status
- 1 SUBPIXELORDER subpixel order
-└───
-┌───
- RROutputPropertyNotify
- 1 Base + 1 code
- 1 2 sub-code
- 2 CARD16 sequence number
- 4 WINDOW window
- 4 OUTPUT output
- 4 ATOM atom
- 4 TIMESTAMP time
- 1 state
- 0 NewValue
- 1 Deleted
- 11 unused
-└───
-
-A.4 Protocol Errors
-
-┌───
- ERRORS
- Base + 0 Output
- Base + 1 Crtc
- Base + 2 Mode
-└───
-
-Bibliography
-
-[RANDR] Gettys, Jim and Keith Packard, "The X Resize and Rotate
- Extension - RandR", Proceedings of the 2001 USENIX Annual
- Technical Conference, Boston, MA
-
-[RENDER]
- Packard, Keith, "The X Rendering Extension", work in progress,
- http://cgit.freedesktop.org/xorg/proto/renderproto/tree/renderproto.txt
+ The X Resize, Rotate and Reflect Extension + Version 1.4.0 + 2009-10-5 + + Jim Gettys + Jim.Gettys@hp.com + Cambridge Research Laboratory + HP Labs + Hewlett Packard Company + + Keith Packard + keith.packard@intel.com + Open Source Technology Center + Intel Corporation + +1. Introduction + +The X Resize, Rotate and Reflect Extension, called RandR for short, +brings the ability to resize, rotate and reflect the root window of a +screen. It is based on the X Resize and Rotate Extension as specified +in the Proceedings of the 2001 Usenix Technical Conference [RANDR]. + +RandR as implemented and integrated into the X server differs in +one substantial fashion from the design discussed in that paper: that +is, RandR 1.0 does not implement the depth switching described in that +document, and the support described for that in the protocol in that +document and in the implementation has been removed from the +protocol described here, as it has been overtaken by events. + +These events include: + ► Modern toolkits (in this case, GTK+ 2.x) have progressed to the point + of implementing migration between screens of arbitrary depths + ► The continued advance of Moore's law has made limited amounts of VRAM + less of an issue, reducing the pressure to implement depth switching + on laptops or desktop systems + ► The continued decline of legacy toolkits whose design would have + required depth switching to support migration + ► The lack of depth switching implementation experience in the + intervening time, due to events beyond our control + +Additionally, the requirement to support depth switching might +complicate other re-engineering of the device independent part of the +X server that is currently being contemplated. + +Rather than further delaying RandR's widespread deployment for a feature +long wanted by the community (resizing of screens, particularly on laptops), +or the deployment of a protocol design that might be flawed due to lack of +implementation experience, we decided to remove depth switching from the +protocol. It may be implemented at a later time if resources and +interests permit as a revision to the protocol described here, which will +remain a stable base for applications. The protocol described here has been +implemented in the main X.org server, and more fully in the hw/kdrive +implementation in the distribution, which fully implements resizing, +rotation and reflection. + +1.2 Introduction to version 1.2 of the extension + +One of the significant limitations found in version 1.1 of the RandR +protocol was the inability to deal with the Xinerama model where multiple +monitors display portions of a common underlying screen. In this environment, +zero or more video outputs are associated with each CRT controller which +defines both a set of video timings and a 'viewport' within the larger +screen. This viewport is independent of the overall size of the screen, and +may be located anywhere within the screen. + +The effect is to decouple the reported size of the screen from the size +presented by each video output, and to permit multiple outputs to present +information for a single screen. + +To extend RandR for this model, we separate out the output, CRTC and screen +configuration information and permit them to be configured separately. For +compatibility with the 1.1 version of the protocol, we make the 1.1 requests +simultaneously affect both the screen and the (presumably sole) CRTC and +output. The set of available outputs are presented with UTF-8 encoded names +and may be connected to CRTCs as permitted by the underlying hardware. CRTC +configuration is now done with full mode information instead of just size +and refresh rate, and these modes have names. These names also use UTF-8 +encoding. New modes may also be added by the user. + +Additional requests and events are provided for this new functionality. + + ┌────────────────────────────────┬──────────┐ + ┏━━━━━━━┳───────────────┐ ╔════════╗ ╔════════╗ + ┃ 1 ┃ │ ║ A ║ ║ B ║ + ┃ ┏━━━╋━━━━━━━━━━━━━━━┫ ║ ║ ║ ║ + ┣━━━╋━━━┛ ┃ ╚════════╝ ╚════════╝ + │ ┃ 2 ┃─────────────────┐ + │ ┃ ┃ ╔═══════════════════╗ + │ ┃ ┃ ║ ║ + │ ┗━━━━━━━━━━━━━━━━━━━┫ ║ C ║ + └───────────────────────┘ ║ ║ + ┌──────┐ ┏━━━━┓ ╔══════╗ ║ ║ + │screen│ ┃CRTC┃ ║output║ ╚═══════════════════╝ + └──────┘ ┗━━━━┛ ╚══════╝ + +In this picture, the screen is covered (incompletely) by two CRTCs. CRTC1 +is connected to two outputs, A and B. CRTC2 is connected to output C. +Outputs A and B will present exactly the same region of the screen using +the same mode line. Output C will present a different (larger) region of +the screen using a different mode line. + +RandR provides information about each available CRTC and output; the +connection between CRTC and output is under application control, although +the hardware will probably impose restrictions on the possible +configurations. The protocol doesn't try to describe these restrictions, +instead it provides a mechanism to find out what combinations are supported. + +For instance, dual-link DVI gangs two CRTC outputs together to provide higher +bandwidth for large resolution screens. This is exposed in RandR by +requiring that nothing be connected to the second CRTC when driving a high +resolution screen on the first. + +1.3 Introduction to version 1.3 of the extension + +Version 1.3 builds on the changes made with version 1.2 and adds some new +capabilities without fundmentally changing the extension again. The +following features are added in this version: + + • Projective Transforms. The implementation work for general rotation + support made it trivial to add full projective transformations. These + can be used to scale the screen up/down as well as perform projector + keystone correct or other effects. + + • Panning. It was removed with RandR 1.2 because the old semantics didn't + fit any longer. With RandR 1.3 panning can be specified per crtc. + +1.4 Introduction to version 1.4 of the extension + +Version 1.4 adds a couple more capabilities to further expose the +underlying hardware to clients + + • Per-crtc pixmaps. This provides for multiple scan-out buffers + which applications can create and assign to arbitrary collections + of crtcs. + + • Sprite position and image transforms. These provide a projective + transform for both the hot spot location and the sprite image + itself for each CRTC. + + • RRSetCrtcConfigs request. This supplies a set of + crtc configurations to the server that must be applied together + or not at all. This can reduce screen flicker while also + providing the server a complete configuration for appropriate + resource management. + +The first two additions, per-crtc pixmaps and sprite transforms are +designed to solve two problems: + + 1) Screen transforms. The software transform code in the X server + uses a shadow frame buffer, adding another copy to every graphics + operation. Worse, the server has no idea about when clients are + done drawing a frame, so the user gets additional latency and + judder. + + The goal is to move this operation out to the compositing manager + which already deals with an extra copy of the frame buffer for + many operations. Have the compositing manager create and draw to a + separate pixmap for scanout. It can perform whatever transforms + are required to get the image in the right orientation for the + user. + + 2) Hardware scanout engine size limits. With a single scanout buffer + for the entire screen, it's possible for the user to ask for a + configuration which requires that scanout buffer to be larger than + the hardware is capable of scanning out from. Again, having the + compositing manager create a pixmap for each CRTC will allow for + any configuration where monitor position within the virtual space + isn't limited by the scanout limits. + +In both of these cases, the Sprite transforms are necessary to ensure +that the sprite appears at the desired spot on each CRTC and with the +right shape. + +1.99 Acknowledgements + +Our thanks to the contributors to the design found on the xpert mailing +list, in particular: + +Alan Hourihane for work on the early implementation +Andrew C. Aitchison for help with the XFree86 DDX implementation +Andy Ritger for early questions about how mergefb/Xinerama work with RandR +Carl Worth for editing the specification and Usenix paper +David Dawes for XFree86 DDX integration work +Thomas Winischhofer for the hardware-accelerated SiS rotation implementation +Matthew Tippett and Kevin Martin for splitting outputs and CRTCs to more +fully expose what video hardware can do + + ❧❧❧❧❧❧❧❧❧❧❧ + +2. Screen change model + +Screens may change dynamically, either under control of this extension, or +due to external events. Examples include: monitors being swapped, pressing a +button to switch from internal display to an external monitor on a laptop, +or, eventually, the hotplug of a display card entirely on busses such as +Cardbus or Express Card which permit hot-swap (which will require other work +in addition to this extension). + +Since the screen configuration is dynamic and asynchronous to the client and +may change at any time RandR provides mechanisms to ensure that your clients +view is up to date with the configuration possibilities of the moment and +enforces applications that wish to control the configuration to prove that +their information is up to date before honoring requests to change the +screen configuration (by requiring a timestamp on the request). + +Interested applications are notified whenever the screen configuration +changes, providing the current size of the screen and subpixel order (see +the Render extension [RENDER]), to enable proper rendering of subpixel +decimated client text to continue, along with a time stamp of the +configuration change. A client must refresh its knowledge of the screen +configuration before attempting to change the configuration after a +notification, or the request will fail. + +To avoid multiplicative explosion between orientation, reflection and sizes, +the sizes are only those sizes in the normal (0) rotation. + +Rotation and reflection and how they interact can be confusing. In Randr, +the coordinate system is rotated in a counter-clockwise direction relative +to the normal orientation. Reflection is along the window system coordinate +system, not the physical screen X and Y axis, so that rotation and +reflection do not interact. The other way to consider reflection is to is +specified in the "normal" orientation, before rotation, if you find the +other way confusing. + +We expect that most clients and toolkits will be oblivious to changes to the +screen structure, as they generally use the values in the connections Display +structure directly. By toolkits updating the values on the fly, we believe +pop-up menus and other pop up windows will position themselves correctly in +the face of screen configuration changes (the issue is ensuring that pop-ups +are visible on the reconfigured screen). + + ❧❧❧❧❧❧❧❧❧❧❧ + +3. Data Types + +The subpixel order is shared with the Render extension, and is documented +there. The only datatype defined is the screen size, defined in the normal +(0 degree) orientation. + + ❧❧❧❧❧❧❧❧❧❧❧ + +4. Errors + +Errors are sent using core X error reports. + +Output + A value for an OUTPUT argument does not name a defined OUTPUT. +CRTC + A value for a CRTC argument does not name a defined CRTC. +Mode + A value for a MODE argument does not name a defined MODE. + + ❧❧❧❧❧❧❧❧❧❧❧ + +5. Protocol Types + +RRCONFIGSTATUS { Success + InvalidConfigTime + InvalidTime + Failed } + + A value of type RRCONFIGSTATUS returned when manipulating the output + configuration or querying information from the server that has some + time-dependency. + + InvalidConfigTime indicates that the supplied configuration + timestamp does not match the current X server configuration + timestamp. Usually this means that the output configuration has + changed since the timestamp was received by the application. + + InvalidTime indicates that the supplied output reconfiguration time + is earlier than the most recent output reconfiguration request. + Generally this indicates that another application has reconfigured + the output using a later timestamp. + + Failed is returned whenever the operation is unsuccessful for some + other reason. This generally indicates that the requested output + configuration is unsupported by the hardware. The goal is to make + these limitations expressed by the protocol, but when that isn't + possible it is correct to return this error value. If, as a + implentor, you find this error code required, please submit the + hardware constraints that exist so that a future version of the + extension can correctly capture the configuration constraints in + your system. + +ROTATION { Rotate_0 + Rotate_90 + Rotate_180 + Rotate_270 + Reflect_X + Reflect_Y } + + These values are used both to indicate a set of allowed rotations + and reflections as well as to indicate a specific rotation and + reflection combination. + +RRSELECTMASK { RRScreenChangeNotifyMask + RRCrtcChangeNotifyMask (New in version 1.2) + RROutputChangeNotifyMask (New in version 1.2) + RROutputPropertyNotifyMask (New in version 1.2) } + +SIZEID { CARD16 } + +MODE { XID or None } + +CRTC { XID } + +OUTPUT { XID } + +CONNECTION { Connected, Disconnected, UnknownConnection } + + This value provides an indication of whether an output is actually + connected to a monitor or other presentation device. + +SUBPIXELORDER { SubPixelUnknown The subpixel order uses the Render + SubPixelHorizontalRGB extensions definitions; they are here + SubPixelHorizontalBGR only for convenience. + SubPixelVerticalRGB + SubPixelVerticalBGR + SubPixelNone } + +SCREENSIZE { widthInPixels, heightInPixels: CARD16 + widthInMillimeters, heightInMillimeters: CARD16 } + +MODEFLAG { HSyncPositive + HSyncNegative + VSyncPositive + VSyncNegative + Interlace + DoubleScan + CSync + CSyncPositive + CSyncNegative + HSkewPresent + BCast + PixelMultiplex + DoubleClock + ClockDivideBy2 } + +MODEINFO { id: MODE + name: STRING + width, height: CARD16 + dotClock: CARD32 + hSyncStart, hSyncEnd, hTotal, hSkew: CARD16 + vSyncStart, vSyncEnd, vTotal: CARD16 + modeFlags: SETofMODEFLAG } + +REFRESH { rates: LISTofCARD16 } + + ❧❧❧❧❧❧❧❧❧❧❧ + +5.4. Protocol Types added in version 1.4 of the extension + +SCANOUTPIXMAPINFO { format: PICTFORMAT + maxWidth, maxHeight: CARD16 + rotations: SETofROTATION } + + 'format' is the format of the pixels within the scanout + pixmap. Only 'Direct' formats are supported, this will never + be an 'Indexed' format. + + 'maxWidth' and 'maxHeight' define the largest supported + scanout pixmap. There is no minimum size; scanout pixmaps down + to 1x1 may be created. + + 'rotations' lists the set of rotations which can be provided + without additional latency or memory usage within the + environment. This typically means that they are supported + directly by the hardware. It is expected that a compositing + manager will perform other transforms as a part of the + compositing process in conjunction with the sprite transforms + described in this extension. + +SCREENFLAG { SetScreenPixmapSize + SetScreenSize + SetScreenSizeInMillimeters + SetScreenCrtcs } + +CRTCFLAG { SetCrtcPosition + SetCrtcMode + SetCrtcRotation + SetCrtcOutputs + SetCrtcSpritePositionTransform + SetCrtcSpriteImageTransform + SetCrtcPixmap + SetCrtcPixmapPosition } + +CRTCCONFIG { crtc: CRTC + set: SETofCRTCFLAG + x, y: INT16 + mode: MODE + rotation: ROTATION + sprite-position-transform: TRANSFORM + sprite-image-transform: TRANSFORM + outputs: LISTofOUTPUT + pixmap: PIXMAP or None + pixmap-x, pixmap-y: INT16 } + + If 'set' includes SetCrtcSpritePositionTransform, then + sprite-position-transform is used as in the + RRSetCrtcSpriteTransform request position-transform parameter. + + If 'set' includes SetCrtcSpriteImageTransform, then + sprite-image-transform is used as in the + RRSetCrtcSpriteTransform request image-transform parameter. + + If 'set' includes SetCrtcPixmap, then 'pixmap' specifies the + origin of the pixel data to be presented on 'crtc'. If + 'pixmap' is None, then data will be presented from the screen + pixmap. + + If 'set' includes SetCrtcPixmapPosition, then 'pixmap-x' and + 'pixmap-y' specify the origin of the scanout data within the + pixmap, the area from that location to pixmap-x + + width-of(mode), pixmap-y + height-of(mode) is what will be + seen on the connected outputs. + + If 'set' includes SetCrtcPixmap, then 'pixmap' must specify a + scanout pixmap as created by RRCreateScanoutPixmap or + None. Otherwise a Match error results. Furthermore: + + * 'pixmap' must be at least as large as the area to be + scanned out, or a Match error results. + + * If 'pixmap' is destroyed while still being used as a + scanout pixmap, then the associated CRTC will have its + scanout pixmap set back to None, the CRTC origin set back + to 0,0 (to make sure it fits) and the screen pixmap width + and height increased to be at least as big as the current + CRTC mode. + + * Future crtc changes that do not change the scanout pixmap + will cause an existing scanout pixmap to be resized to be + large enough to hold the new mode at the then-current + pixmap-x/pixmap-y location. + + If 'set' includes SetCrtcRotation then: + + * Any new or existing scanout pixmap must have had the + specified 'rotation' included as a part of its creation + parameters, or a Match error results. + + * If no scanout pixmap is in use, then the crtc must support + 'rotation' else a Value error results. + + ❧❧❧❧❧❧❧❧❧❧❧ + +6. Extension Initialization + +The name of this extension is "RANDR". + +┌─── + RRQueryVersion + client-major-version: CARD32 + client-minor-version: CARD32 + ▶ + major-version: CARD32 + minor-version: CARD32 +└─── + + The client sends the highest supported version to the server + and the server sends the highest version it supports, but no + higher than the requested version. Major versions changes can + introduce incompatibilities in existing functionality, minor + version changes introduce only backward compatible changes. + It is the clients responsibility to ensure that the server + supports a version which is compatible with its expectations. + + ❧❧❧❧❧❧❧❧❧❧❧ + +7. Extension Requests + +┌─── + RRSelectInput + window: WINDOW + enable: SETofRRSELECTMASK +└─── + Errors: Window, Value + + If 'enable' is RRScreenChangeNotifyMask, RRScreenChangeNotify events + will be sent when the screen configuration changes, either from + this protocol extension, or due to detected external screen + configuration changes. RRScreenChangeNotify may also be sent when + this request executes if the screen configuration has changed since + the client connected, to avoid race conditions. + + New for version 1.2: + + If 'enable' contains RRCrtcChangeMask, RRCrtcChangeNotify events + will be sent when a the configuration for a CRTC associated with the + screen changes, either through this protocol extension or due to + detected external changes. RRCrtcChangeNotify may also be sent when + this request executes if the CRTC configuration has changed since + the client connected, to avoid race conditions. + + If 'enable' contains RROutputChangeMask, RROutputChangeNotify events + will be sent when a the configuration for an output associated with + the screen changes, either through this protocol extension or due to + detected external changes. RROutputChangeNotify may also be sent + when this request executes if the output configuration has changed + since the client connected, to avoid race conditions. + + If 'enable' contains RROutputPropertyNotifyMask, + RROutputPropertyNotify events will be sent when properties change on + this output. + +┌─── + RRSetScreenConfig + window: WINDOW + timestamp: TIMESTAMP + config-timestamp: TIMESTAMP + size-id: SIZEID + rotation: ROTATION + rate: CARD16 + ▶ + status: RRCONFIGSTATUS + new-timestamp: TIMESTAMP + config-timestamp: TIMESTAMP + root: WINDOW + subpixelOrder: SUBPIXELORDER +└─── + Errors: Value, Match + + If 'timestamp' is less than the time when the configuration was last + successfully set, the request is ignored and InvalidTime returned in + status. + + If 'config-timestamp' is not equal to when the server's screen + configurations last changed, the request is ignored and + InvalidConfigTime returned in status. This could occur if the + screen changed since you last made a RRGetScreenInfo request, + perhaps by a different piece of display hardware being installed. + Rather than allowing an incorrect call to be executed based on stale + data, the server will ignore the request. + + 'rate' contains the desired refresh rate. If it is zero, the server + selects an appropriate rate. + + This request may fail for other indeterminate reasons, in which case + 'status' will be set to Failed and no configuration change will be + made. + + This request sets the screen to the specified size, rate, rotation + and reflection. + + When this request succeeds, 'status' contains Success and the + requested changes to configuration will have been made. + + 'new-time-stamp' contains the time at which this request was + executed. + + 'config-timestamp' contains the time when the possible screen + configurations were last changed. + + 'root' contains the root window for the screen indicated by the + window. + + 'subpixelOrder' contains the resulting subpixel order of the screen + to allow correct subpixel rendering. + + Value errors are generated when 'rotation', 'rate' or 'size-id' + are invalid. + +┌─── + RRGetScreenInfo + window: WINDOW + ▶ + rotations: SETofROTATION + root: WINDOW + timestamp: TIMESTAMP + config-timestamp: TIMESTAMP + size-id: SIZEID + rotation: ROTATION + rate: CARD16 + sizes: LISTofSCREENSIZE + refresh: LISTofREFRESH +└─── + + Errors: Window + + RRGetScreenInfo returns information about the current and available + configurations for the screen associated with 'window'. + + 'rotations' contains the set of rotations and reflections supported + by the screen. + + 'root' is the root window of the screen. + + 'config-timestamp' indicates when the screen configuration + information last changed: requests to set the screen will fail + unless the timestamp indicates that the information the client + is using is up to date, to ensure clients can be well behaved + in the face of race conditions. + + 'timestamp' indicates when the configuration was last set. + + 'size-id' indicates which size is active. + + 'rate' is the current refresh rate. This is zero when the refresh + rate is unknown or on devices for which refresh is not relevant. + + 'sizes' is the list of possible frame buffer sizes (at the normal + orientation. Each size indicates both the linear physical size of + the screen and the pixel size. + + 'refresh' is the list of refresh rates for each size. Each element + of 'sizes' has a corresponding element in 'refresh'. An empty list + indicates no known rates, or a device for which refresh is not + relevant. + + The default size of the screen (the size that would become the + current size when the server resets) is the first size in the + list. + +7.1. Extension Requests added in version 1.2 of the extension + +As introduced above, version 1.2 of the extension splits the screen size +from the crtc and output configuration, permitting the subset of the screen +presented by multiple outputs to be configured. As a separate notion, the +size of the screen itself may be arbitrarily configured within a defined +range. As crtcs and outputs are added and removed from the system, the set +returned by the extension will change so that applications can detect +dynamic changes in the display environment. + +┌─── + RRGetScreenSizeRange + window: WINDOW + ▶ + CARD16 minWidth, minHeight + CARD16 maxWidth, maxHeight +└─── + Errors: Window + + Returns the range of possible screen sizes. The screen may be set to + any size within this range. + +┌─── + RRSetScreenSize + window: WINDOW + width: CARD16 + height: CARD16 + width-in-millimeters: CARD32 + height-in-millimeters: CARD32 +└─── + Errors: Window, Match, Value + + Sets the screen to the specified size. 'width' and 'height' must be + within the range allowed by GetScreenSizeRanges, otherwise a Value + error results. All active monitors must be configured to display a + subset of the specified size, else a Match error results. + + 'width-in-millimeters' and 'height-in-millimeters' can be set to + reflect the physical size of the screen reported both through this + extension and the core protocol. They must be non-zero, or Value + error results. + + If panning is enabled, the width and height of the panning and the + tracking areas are adapted to the new size and clamped afterwards. + Disabled panning axes remain disabled. + Panning borders are disabled if their requirements are no longer met + (see RRSetPanning). + +┌─── + RRGetScreenResources + window: WINDOW + ▶ + timestamp: TIMESTAMP + config-timestamp: TIMESTAMP + crtcs: LISTofCRTC + outputs: LISTofOUTPUT + modes: LISTofMODEINFO +└─── + Errors: Window + + RRGetScreenResources returns the list of outputs and crtcs connected + to the screen associated with 'window'. + + 'timestamp' indicates when the configuration was last set. + + 'config-timestamp' indicates when the configuration information last + changed. Requests to configure the output will fail unless the + timestamp indicates that the information the client is using is up + to date, to ensure clients can be well behaved in the face of race + conditions. + + 'crtcs' contains the list of CRTCs associated with the screen. + + 'outputs' contains the list of outputs associated with the screen. + + 'modes' contains the list of modes associated with the screen + + This request explicitly asks the server to ensure that the + configuration data is up-to-date wrt the hardware. If that requires + polling, this is when such polling would take place. If the + current configuration is all that's required, use + RRGetScreenResourcesCurrent instead. + +┌─── + RRGetOutputInfo + output: OUTPUT + config-timestamp: TIMESTAMP + ▶ + status: RRCONFIGSTATUS + timestamp: TIMESTAMP + crtc: CRTC + + name: STRING + connection: CONNECTION + subpixel-order: SUBPIXELORDER + widthInMillimeters, heightInMillimeters: CARD32 + crtcs: LISTofCRTC + clones: LISTofOUTPUT + modes: LISTofMODE + num-preferred: CARD16 +└─── + Errors: Output + + RRGetOutputInfo returns information about the current and available + configurations 'output'. + + If 'config-timestamp' does not match the current configuration + timestamp (as returned by RRGetScreenResources), 'status' is set to + InvalidConfigTime and the remaining reply data is empty. Otherwise, + 'status' is set to Success. + + 'timestamp' indicates when the configuration was last set. + + 'crtc' is the current source CRTC for video data, or Disabled if the + output is not connected to any CRTC. + + 'name' is a UTF-8 encoded string designed to be presented to the + user to indicate which output this is. E.g. "S-Video" or "DVI". + + 'connection' indicates whether the hardware was able to detect a + device connected to this output. If the hardware cannot determine + whether something is connected, it will set this to + UnknownConnection. + + 'subpixel-order' contains the resulting subpixel order of the + connected device to allow correct subpixel rendering. + + 'widthInMillimeters' and 'heightInMillimeters' report the physical + size of the displayed area. If unknown, or not really fixed (e.g., + for a projector), these values are both zero. + + 'crtcs' is the list of CRTCs that this output may be connected to. + Attempting to connect this output to a different CRTC results in a + Match error. + + 'clones' is the list of outputs which may be simultaneously + connected to the same CRTC along with this output. Attempting to + connect this output with an output not in the 'clones' list + results in a Match error. + + 'modes' is the list of modes supported by this output. Attempting to + connect this output to a CRTC not using one of these modes results + in a Match error. + + The first 'num-preferred' modes in 'modes' are preferred by the + monitor in some way; for fixed-pixel devices, this would generally + indicate which modes match the resolution of the output device. + +┌─── + RRListOutputProperties + output:OUTPUT + ▶ + atoms: LISTof ATOM +└─── + Errors: Output + + This request returns the atoms of properties currently defined on + the output. + +┌─── + RRQueryOutputProperty + output: OUTPUT + property: ATOM + ▶ + pending: BOOL + range: BOOL + immutable: BOOL + valid-values: LISTofINT32 +└─── + Errors: Name, Atom, Output + + If the specified property does not exist for the specified output, + then a Name error is returned. + + If 'pending' is TRUE, changes made to property values with + RRChangeOutputProperty will be saved in the pending property value + and be automatically copied to the current value on the next + RRSetCrtcConfig request involving the named output. If 'pending' is + FALSE, changes are copied immediately. + + If 'range' is TRUE, then the valid-values list will contain + precisely two values indicating the minimum and maximum allowed + values. If 'range' is FALSE, then the valid-values list will contain + the list of possible values; attempts to set other values will + result in a Value error. + + If 'immutable' is TRUE, then the property configuration cannot be + changed by clients. Immutable properties are interpreted by the X + server. + +┌─── + RRConfigureOutputProperty + output: OUTPUT + property: ATOM + pending: BOOL + range: BOOL + valid-values: LISTofINT32 +└─── + Errors: Access, Name, Atom, Output + + If the specified property is 'immutable', an Access error is + returned. + + Otherwise, the configuration of the specified property is changed to + the values provided in this request. + + If the specified property does not exist for the specified output, + it is created with an empty value and None type. + +┌─── + RRChangeOutputProperty + output: OUTPUT + property, type: ATOM + format: {8, 16, 32} + mode: { Replace, Prepend, Append } + data: LISTofINT8 or LISTofINT16 or LISTofINT32 +└─── + Errors: Alloc, Atom, Match, Value, Output + + This request alters the value of the property for the specified + output. If the property is marked as a 'pending' property, only the + pending value of the property is changed. Otherwise, changes are + reflected in both the pending and current values of the property. + The type is uninterpreted by the server. The format specifies + whether the data should be viewed as a list of 8-bit, 16-bit, or + 32-bit quantities so that the server can correctly byte-swap as + necessary. + + If the mode is Replace, the previous property value is discarded. + If the mode is Prepend or Append, then the type and format must + match the existing property value (or a Match error results). If + the property is undefined, it is treated as defined with the correct + type and format with zero-length data. + + For Prepend, the data is tacked on to the beginning of the existing + data, and for Append, it is tacked on to the end of the existing data. + + This request generates a OutputPropertyNotify + + The lifetime of a property is not tied to the storing client. + Properties remain until explicitly deleted, until the output is + destroyed, or until server reset (see section 10). + + The maximum size of a property is server-dependent and may vary + dynamically. + +┌─── + RRDeleteOutputProperty + output: OUTPUT + property: ATOM +└─── + Errors: Atom, Output + + This request deletes the property from the specified window if the + property exists and generates a OutputPropertyNotify event unless + the property does not exist. + +┌─── + RRGetOutputProperty + output: OUTPUT + property: ATOM + type: ATOM or AnyPropertyType + long-offset, long-length: CARD32 + delete: BOOL + pending: BOOL + ▶ + type: ATOM or None + format: {0, 8, 16, 32} + bytes-after: CARD32 + value: LISTofINT8 or LISTofINT16 or LISTofINT32 +└─── + Errors: Atom, Value, Output + + If the specified property does not exist for the specified output, + then the return type is None, the format and bytes-after are zero, + and the value is empty. The delete argument is ignored in this + case. + + If the specified property exists but its type does not match the + specified type, then the return type is the actual type of the + property, the format is the actual format of the property (never + zero), the bytes-after is the length of the property in bytes (even + if the format is 16 or 32), and the value is empty. The delete + argument is ignored in this case. + + If the specified property exists and either AnyPropertyType is + specified or the specified type matches the actual type of the + property, then the return type is the actual type of the property, + the format is the actual format of the property (never zero), and + the bytes-after and value are as follows, given: + + N = actual length of the stored property in bytes + (even if the format is 16 or 32) + I = 4 × offset + T = N - I + L = MINIMUM(T, 4 × long-length) + A = N - (I + L) + + If 'pending' is true, and if the property holds a pending value, + then the value returned will be the pending value of the property + rather than the current value. The returned value starts at byte + index I in the property (indexing from 0), and its length in bytes + is L. However, it is a Value error if long-offset is given such + that L is negative. The value of bytes-after is A, giving the + number of trailing unread bytes in the stored property. If delete + is True and the bytes-after is zero, the property is also deleted + from the output, and a RROutputPropertyNotify event is generated. + +┌─── + RRCreateMode + window: WINDOW + modeinfo: MODEINFO + ▶ + mode: MODE +└─── + Errors: Window, Name, Value + + 'modeinfo' provides a new mode for outputs on the screen + associated with 'window'. If the name of 'modeinfo' names an + existing mode, a Name error is returned. If some parameter of the + mode is not valid in some other way, a Value error is returned. + + The returned 'mode' provides the id for the mode. + +┌─── + RRDestroyMode + mode: MODE +└─── + Errors: Mode, Access + + The user-defined 'mode' is destroyed. 'mode' must name a mode + defined with RRCreateMode, else an Match error is returned. If + 'mode' is in use by some CRTC or Output, then an Access error is + returned. + +┌─── + RRAddOutputMode + output: OUTPUT + mode: MODE +└─── + Errors: Output, Mode, Match + + 'output' indicates which output is to be configured. + + 'mode' specifies which mode to add. If 'mode' is not valid for + 'output', then a Match error is generated. + + This request generates OutputChangeNotify events. + +┌─── + RRDeleteOutputMode + output: OUTPUT + mode: MODE +└─── + Errors: Output, Mode + + 'output' indicates which output is to be configured. + + 'mode' specifies which mode to delete. 'mode' must have been added + with RRAddOutputMode, else an Access error is returned. 'mode' must + not be active, else a Match error is returned. + + This request generates OutputChangeNotify events. + +┌─── + RRGetCrtcInfo + crtc: CRTC + config-timestamp: TIMESTAMP + ▶ + status: RRCONFIGSTATUS + timestamp: TIMESTAMP + x, y: INT16 + width, height: CARD16 + mode: MODE + rotation: ROTATION + outputs: LISTofOUTPUT + + rotations: SETofROTATION + possible-outputs: LISTofOUTPUT +└─── + + Errors: Window + + RRGetCrtcModes returns information about the current and available + configurations for the specified crtc connected to the screen + associated with 'window'. + + If 'config-timestamp' does not match the current configuration + timestamp (as returned by RRGetScreenResources), 'status' is set to + InvalidConfigTime and the remaining reply data is empty. Otherwise, + 'status' is set to Success. + + 'timestamp' indicates when the configuration was last set. + + 'x' and 'y' indicate the position of this CRTC within the screen + region. They will be set to 0 when the CRTC is disabled. + + 'width' and 'height' indicate the size of the area within the screen + presented by this CRTC. This may be different than the size of the + mode due to rotation. They will be set to 0 when the CRTC + is disabled. + + 'mode' indicates which mode is active, or None indicating that the + CRTC has been disabled and is not displaying the screen contents. + + 'rotation' indicates the active rotation. It is set to Rotate_0 + when the CRTC is disabled. + + 'outputs' is the list of outputs currently connected to this CRTC + and is empty when the CRTC is disabled. + + 'rotations' contains the set of rotations and reflections supported + by the CRTC. + + 'possible-outputs' lists all of the outputs which may be connected + to this CRTC. + +┌─── + RRSetCrtcConfig + crtc: CRTC + timestamp: TIMESTAMP + config-timestamp: TIMESTAMP + x, y: INT16 + mode: MODE + rotation: ROTATION + outputs: LISTofOUTPUT + ▶ + status: RRCONFIGSTATUS + new-timestamp: TIMESTAMP +└─── + Errors: Value, Match + + If 'timestamp' is less than the time when the configuration was last + successfully set, the request is ignored and InvalidTime returned in + status. + + If 'config-timestamp' is not equal to when the monitor's + configuration last changed, the request is ignored and + InvalidConfigTime returned in status. This could occur if the + monitor changed since you last made a RRGetScreenInfo request, + perhaps by a different monitor being connected to the machine. + Rather than allowing an incorrect call to be executed based on stale + data, the server will ignore the request. + + 'x' and 'y' contain the desired location within the screen for this + monitor's content. 'x' and 'y' must be within the screen size, else + a Value error results. + + 'mode' is either the desired mode or None indicating the CRTC should + be disabled. If 'mode' is not one of these values, a Value + error results. 'mode' must be valid for all of the configured outputs, + else a Match error. + + 'rotation' contains the desired rotation along with which + reflections should be enabled. The rotation and reflection values + must be among those allowed for this monitor, else a Value error + results. + + 'outputs' contains the set of outputs that this CRTC should be + connected to. The set must be among the list of acceptable output + sets for this CRTC or a Match error results. + + If 'mode' is None, then 'outputs' must be empty, else a Match error + results. Conversely, if 'mode' is not None, then 'outputs' must not be + empty, else a Match error results. + + This request may fail for other indeterminate reasons, in which case + 'status' will be set to Failed and no configuration change will be + made. + + This request sets the CRTC to the specified position, mode, rotation + and reflection. The entire area of the CRTC must fit within the + screen size, else a Match error results. As an example, rotating the + screen so that a single CRTC fills the entire screen before and + after may necessitate disabling the CRTC, resizing the screen, + then re-enabling the CRTC at the new configuration to avoid an + invalid intermediate configuration. + + If panning is enabled, the width and height of the panning and the + tracking areas are clamped to the new mode size. + Disabled panning axes remain disabled. + Panning borders are disabled if their requirements are no longer met + (see RRSetPanning). + + When this request succeeds, 'status' contains Success and the + requested changes to configuration will have been made. + + 'new-time-stamp' contains the time at which this request was + executed. + +┌─── + RRGetCrtcGammaSize + crtc: CRTC + ▶ + size: CARD16 +└─── + Errors: Crtc + + This request returns the size of the gamma ramps used by 'crtc'. + +┌─── + RRGetCrtcGamma + crtc: CRTC + ▶ + red: LISTofCARD16 + green: LISTofCARD16 + blue: LISTofCARD16 +└─── + Errors: Crtc + + This request returns the currently set gamma ramps for 'crtc'. All + three lists will be the size returned by the RRGetCrtcGammaSize + request. + +┌─── + RRSetCrtcGamma + crtc: CRTC + red: LISTofCARD16 + green: LISTofCARD16 + blue: LISTofCARD16 +└─── + Errors: Crtc, Match + + This request sets the gamma ramps for 'crtc'. All three lists + must be the size returned by RRGetCrtcGammaSize else a Value error + results. + +7.2. Extension Requests added in version 1.3 of the extension + +┌─── + RRGetScreenResourcesCurrent + window: WINDOW + ▶ + timestamp: TIMESTAMP + config-timestamp: TIMESTAMP + crtcs: LISTofCRTC + outputs: LISTofOUTPUT + modes: LISTofMODEINFO +└─── + Errors: Window + + RRGetScreenResourcesCurrent returns the list of outputs and crtcs + connected to the screen associated with 'window'. + + 'timestamp' indicates when the configuration was last set. + + 'config-timestamp' indicates when the configuration information last + changed. Requests to configure the output will fail unless the + timestamp indicates that the information the client is using is up + to date, to ensure clients can be well behaved in the face of race + conditions. + + 'crtcs' contains the list of CRTCs associated with the screen. + + 'outputs' contains the list of outputs associated with the screen. + + 'modes' contains the list of modes associated with the screen. + + Unlike RRGetScreenResources, this merely returns the current + configuration, and does not poll for hardware changes. + +┌─── + RRSetCrtcTransform + crtc: CRTC + transform: TRANSFORM + filter: STRING8 + values: LISTofFIXED +└─── + Errors: Crtc, Match + + This request provides a mechanism that is more general than the + existing rotation and reflection values for describing the + transformation from frame buffer image to crtc presentation. + 'transform' is a full 2D projective transformation from screen + coordinate space to crtc coordinate space. This transformation is + applied before the rotation and reflection values to compute the + complete transform. + + 'filter' and 'values' specify a Render filter that may be used by the + server when transforming data from frame buffer to crtc. + + This request sets the transform to be used at the next + RRSetCrtcConfig request execution; it does not cause any change to + occur in the current configuration. + + When a non-identity transformation is in use, the rectangle returned + by RRGetCrtcInfo defines the bounding rectangle of the screen that is + projected to the crtc. It is this projected rectangle which must be + within the area of the screen when the mode is set. + +┌─── + RRGetCrtcTransform + crtc: CRTC + ▶ + pending-transform: TRANSFORM + pending-filter: STRING8 + pending-values: LISTofFIXED + current-transform: TRANSFORM + current-filter: STRING8 + current-values: LISTofFIXED +└─── + + This request returns the pending and current transforms for the + specified CRTC. The pending transform will be the same as the current + transform if no new pending transform has been set since the last call + to RRSetCrtcConfig. + +┌─── + RRGetPanning + crtc: CRTC + ▶ + status: RRCONFIGSTATUS + timestamp: TIMESTAMP + left, top, width, height: CARD16 + track_left, track_top, track_width, track_height: CARD16 + border_left, border_top, border_right, border_bottom: INT16 +└─── + + Errors: Crtc + + Version 1.3 adds panning support again. If multiple crtcs are active + the panning behavior can be defined per crtc individually. + RRGetPanning returns information about the currently set panning + configuration for the specified crtc. If the CRTC does not support + panning, all fields (except timestamp) will be 0. + + 'timestamp' indicates when the configuration was last set. + + All other entries are explained for RRSetPanning. + +┌─── + RRSetPanning + crtc: CRTC + timestamp: TIMESTAMP + left, top, width, height: CARD16 + track_left, track_top, track_width, track_height: CARD16 + border_left, border_top, border_right, border_bottom: INT16 + ▶ + status: RRCONFIGSTATUS + new-timestamp: TIMESTAMP +└─── + Errors: Crtc, Match + + This request sets the panning parameters. As soon as panning is + enabled, the CRTC position can change with every pointer move. + RRCrtcChangeNotify events are sent to the clients requesting those. + + If 'timestamp' is less than the time when the configuration was last + successfully set, the request is ignored and InvalidTime returned in + status. + + ┌──┳━━━━━━━━━━━━━━┳─────┬ ─ ─ ─ ─ ─ ┐ + │ ┃ CRTC ┃ │ + │ ┃ ┃ │ │ + │ ┃ X┃→ │ + │ ┃ ┃ │ │ framebuffer + │ ┗━━━━━━━━━━━━━━┛ │ + │ │ │ + │panning area │ + └───────────────────────┴ ─ ─ ─ ─ ─ ┘ + + 'left', 'top', 'width', and 'height' contain the total panning area + for this CRTC. 'width' has to be larger than or equal to the CRTC's + width or 0, and 'left'+'width' must be within the screen size, else a + Match error results. Equivalent restrictions for the height exist. + 'width' or 'height' set to 0 indicate that panning should be disabled + on the according axis. Setting 'width'/'height' to the CRTC's + width/height will disable panning on the X/Y axis as well, but + RRSetScreenSize will silently enable panning if the screen size is + increased. This does not happen if set to 0. + + ┌────────┳━━━━━━━━━━━━━━┳ ─ ─ ─ ─ ─ ┐ + │ ┃ CRTC ┃ + │ ┃ ┃ │ + │ ┃ ┃ + │ ┃ ┃ │ tracking area + │ ┗━━━━━━━━━━━━━━┫ X + │ ↓ │ ↓ │ + │panning area │ + └───────────────────────┴ ─ ─ ─ ─ ─ ┘ + + 'track_left', 'track_top', 'track_width', and 'track_height' contain + the pointer area for which the panning region is updated. For normal + use cases it should enclose the panning area minus borders, and is + typically set to either the panning area minus borders, or to the + total screen size. If set to the total screen size, the CRTC will pan + in the remaining axis even if the pointer is outside the panning area + on a different CRTC, as shown in the figure above. If the pointer is + outside the tracking area, the CRTC will not pan. Zero can be used as + an alias for the total screen size. + + ┌──┳━━━━━━━━━━━━━━┳────────────┐ + │ ┃ CRTC ┃ │ + │ ┃ ┃ │ + │ ┃ ┃→ │ + │ ┃ X←→┃ │ + │ ┃ border_right │ + │ ┗━━━━━━━━━━━━━━┛ │ + │ │ + │panning area │ + └──────────────────────────────┘ + + 'border_left', 'border_top', 'border_right', and 'border_bottom' + define the distances from the CRTC borders that will activate panning + if the pointer hits them. If the borders are 0, the screen will pan + when the pointer hits the CRTC borders (behavior of pre-RandR Xserver + panning). If the borders are positive, the screen will pan when the + pointer gets close to the CRTC borders, if they are negative, the + screen will only pan when the pointer is already way past the CRTC + borders. Negative values might confuse users and disable panning to + the very edges of the screen. Thus they are discouraged. + border_left + border_right has to be lower or equal than the CRTC's + width, else a Match error results. An equivalent restriction for the + height exists. + + Screen size changes update the panning and the tracking areas to the + new size. Both screen size changes and mode changes clamp these areas + to the current CRTC size. In these cases panning borders are disabled + if their requirements are no longer met. + + When this request succeeds, 'status' contains Success and the + requested changes to configuration will have been made. + + 'new-time-stamp' contains the time at which this request was + executed. + +┌─── + RRSetOutputPrimary + window: WINDOW + output: OUTPUT +└─── + Errors: Match, Output, Window + + RRSetOutputPrimary marks 'output' as the primary output for the + screen with the same root window as 'window'. This output's CRTC + will be sorted to the front of the list in Xinerama and RANDR + geometry requests for the benefit of older applications. The + default primary output is None, and None is a legal value to pass + to RRSetOutputPrimary. This request is expected to be used by + desktop environments to mark the screen that should hold the primary + menu bar or panel. + + As this changes the logical layout of the screen, ConfigureNotify + and RRScreenChangeNotify will be generated on the appropriate root + window when the primary output is changed by this call. This request + also generates RROutputChangeNotify events on the outputs that gained + and lost primary status. + + If an output is disconnected asynchronously (eg. due to recabling), + the primary status does not change, but RROutputChangeNotify events + will be generated if the hardware is capable of detecting this; + clients are expected to reconfigure if appropriate. + + If an output is deleted (eg. due to device hotplug), the server will + act as though None was passed to RRSetOutputPrimary, including + generating the appropriate events. + +┌─── + RRGetOutputPrimary + window: WINDOW + ▶ + output: OUTPUT +└─── + Errors: Window + + RRGetOutputPrimary returns the primary output for the screen. + + ❧❧❧❧❧❧❧❧❧❧❧ + +7.3. Extension Requests added in version 1.4 of the extension. + +┌─── + RRQueryScanoutPixmaps + window: WINDOW + ▶ + infos: LISTofSCANOUTPIXMAPINFO +└─── + Errors: Window + + This request returns information about the server support for + alternate scanout pixmaps. For each pictformat, there is a set + of rotations and a maximum supported size. The rotations here + are those provided by the scanout hardware itself, not by + software emulation. + +┌─── + RRCreateScanoutPixmap + pixmap: PIXMAP + drawable: DRAWABLE + width, height: CARD16 + format: PICTFORMAT + rotations: SETofROTATION +└─── + Errors: Drawable, Match, Value + + Creates a pixmap which can subsequently be used as a scanout + buffer for the screen associated with 'drawable'. 'rotations' + is the set of rotation values which may be used with the + resulting scanout buffer when it is associated with a CRTC. + + 'format' must be one of the supported scanout formats, or a + Match error results. + + 'width' and 'height' must be within the supported range for + the specified format or a Value error results. + + 'rotations' must be a subset of those supported for the + specified format or a Match error results. + +┌─── + RRSetCrtcSpriteTransform + crtc: CRTC + position-transform: TRANSFORM + image-transform: TRANSFORM +└─── + Sets the sprite transforms for the specified crtc, any sprites + presented on this crtc will have their positions transformed + by the position-transform matrix. Sprite images displayed on the crtc + will be transformed by the image-transform matrix. + +┌─── + RRGetCrtcSpriteTransform + crtc: CRTC + ▶ + position-transform: TRANSFORM + image-transform: TRANSFORM +└─── + Gets the sprite transforms for the specified crtc. + +┌─── + RRSetCrtcConfigs + drawable: DRAWABLE + set: SETofSCREENFLAG + screen-pixmap-width: CARD16 + screen-pixmap-height: CARD16 + screen-width: CARD16 + screen-height: CARD16 + width-in-millimeters: CARD32 + height-in-millimeters: CARD32 + configs: LISTofCRTCCONFIG + ▶ + status: RRCONFIGSTATUS +└─── + Errors: Value, Match + + This works much like RRSetScreenSize followed by a sequence of + RRSetCrtcConfig, except that the entire configuration can be set + in a single operation, either succeeding or failing without + any partial execution. + + If 'set' includes 'SetScreenPixmapSize', then + 'screen-pixmap-width' and 'screen-pixmap-height' specify the + new screen pixmap size. + + If 'set' includes 'SetScreenSize', then 'screen-width' and + 'screen-height' specify the new screen size. + + If 'set' includes 'SetScreenSizeInMillimeters', then + 'width-in-millimeters' and 'height-in-millimeters' specify + the new screen physical size. + + If 'set' includes 'SetScreenCrtcs', then 'configs' includes + the list of new CRTC configurations. + + In addition to the pre-1.4 semantics, this request adds the + ability to specific a scanout pixmap for each crtc, and + integrates the 1.4 sprite transform request as well. + + ❧❧❧❧❧❧❧❧❧❧❧ + +8. Extension Events + +Clients MAY select for ConfigureNotify on the root window to be +informed of screen changes. This may be advantageous if all your +client needs to know is the size of the root window, as it avoids +round trips to set up the extension. + +RRScreenChangeNotify is sent if RRSelectInput has requested it +whenever properties of the screen change, which may be due to external +factors, such as re-cabling a monitor, etc. + +┌─── + RRScreenChangeNotify + + rotation: ROTATION; new rotation + sequenceNumber: CARD16 low 16 bits of request seq. number + timestamp: TIMESTAMP time screen was changed + configTimestamp: TIMESTAMP time config data was changed + root: WINDOW root window of screen + window: WINDOW window requesting notification + size-id: SIZEID index of new SCREENSIZE + subpixelOrder: SUBPIXELORDER order of subpixels + widthInPixels: CARD16 width in pixels of the new SCREENSIZE + heightInPixels: CARD16 height in pixels of the new SCREENSIZE + widthInMillimeters: CARD16 width in mm of the new SCREENSIZE + heightInMillimeters: CARD16 height in mm of the new SCREENSIZE +└─── + This event is generated whenever the screen configuration is changed + and sent to requesting clients. 'timestamp' indicates when the + screen configuration was changed. 'configTimestamp' says when the + last time the configuration was changed. 'root' is the root of the + screen the change occurred on, 'window' is window selecting for this + event. 'size-id' contains the index of the current size. + + This event is sent whenever the screen's configuration changes + or if a new screen configuration becomes available that was + not available in the past. In this case (config-timestamp in + the event not being equal to the config-timestamp returned in + the last call to RRGetScreenInfo), the client MUST call + RRGetScreenInfo to update its view of possible screen + configurations to have a correct view of possible screen + organizations. + + Clients which select screen change notification events may be + sent an event immediately if the screen configuration was + changed between when they connected to the X server and + selected for notification. This is to prevent a common race + that might occur on log-in, where many applications start up + just at the time when a display manager or log in script might + be changing the screen size or configuration. + + Note that the sizes in this event reflect the new SCREENSIZE and + thus will appear rotated by the 'rotation' parameter from the sizes + of the screen itself. In other words, when rotation is 90 or 270, + widthInPixels in this event will be the same as the height value + from a ConfigureNotify that reflects the same size change. This + will probably confuse developers. + +8.1 Events added in version 1.2 of the RandR extension + +┌─── + RROutputChangeNotify: + timestamp: TIMESTAMP time screen was reconfigured + config-timestamp: TIMESTAMP time available config data was changed + window: WINDOW window requesting notification + output: OUTPUT output affected by change + crtc: CRTC connected CRTC or None + mode: MODE mode in use on CRTC or None + connection: CONNECTION connection status +└─── + + This event is generated whenever the available output configurations + have changed and is sent to requesting clients. 'timestamp' + indicates when the crtc configuration was changed by a client. + 'config-timestamp' says when the last time the available + configurations changed. 'root' is the root of the screen the change + occurred on, 'window' is window selecting for this event. The + precise change can be detected by examining the new state of the + system. + +┌─── + RROutputPropertyNotify: + window: WINDOW window requesting notification + output: OUTPUT output affected by change + atom: ATOM affected property + time: TIMESTAMP time property was changed + subpixel-order: SUBPIXELORDER order of subpixels + state: { NewValue, Deleted } new property state +└─── + + This event is reported to clients selecting RROutputPropertyChange + on the window and is generated with state NewValue when a property + of the window is changed using RRChangeOutputProperty even when + adding zero-length data and when replacing all or part of a property + with identical data. It is generated with state Deleted when a + property of the window is deleted using either + RRDeleteOutputProperty or RRGetOutputProperty. The timestamp + indicates the server time when the property was changed. + +┌─── + RRCrtcChangeNotify + timestamp: TIMESTAMP time monitor was changed + window: WINDOW window requesting notification + crtc: CRTC CRTC which changed + mode: MODE new mode + rotation: ROTATION; new rotation + x: INT16 x position of CRTC within screen + y: INT16 y position of CRTC within screen + width: CARD16 width of new mode + height: CARD16 height of new mode +└─── + This event is generated whenever the CRTC configuration is changed + and sent to requesting clients. 'timestamp' indicates when the + CRTC configuration was changed. 'window' is window selecting for this + event. 'mode' is the new mode, or None if the crtc is disabled. + 'x' and 'y' mark the location in the screen where this CRTC + is reading data. 'width' and 'height' indicate the size of the + mode. 'x', 'y, 'width' and 'height' are all zero when 'mode' is None. + + This event is sent whenever the monitor's configuration changes + or if a new monitor configuration becomes available that was + not available in the past. In this case, the client MUST call + RRGetCrtcModes to update its view of possible monitor + configurations to have a correct view of possible monitor + organizations. + + Clients which select monitor change notification events may be + sent an event immediately if the monitor configuration was + changed between when they connected to the X server and + selected for notification. This is to prevent a common race + that might occur on log-in, where many applications start up + just at the time when a display manager or log in script might + be changing the monitor size or configuration. + + ❧❧❧❧❧❧❧❧❧❧❧ + +9. Properties + +Properties are used for output specific parameters, and for announcing +static or rarely changing data. Announced data is typically +immutable. Properties are also used for evaluating new parameters +before adding them to the RandR protocol. + +The following properties are hereby declared official, and drivers SHOULD +prefix driver specific properties with '_', unless they are planned to be +added to this specification. List values, that are not declared by the table +below, and will remain driver specific or are not planned to be added to this +specification, SHOULD be prefixed with "_" as well in order to avoid name +space or semantics clashes with future extensions of these values. + +Beginning with version 1.3 of the RandR extension, certain properties +are mandatory and MUST be provided by implementations. Earlier +versions of the RandR extension MAY provide these properties as well, +as long as the semantics are not altered. Clients SHOULD fall back +gracefully to lower version functionality, though, if the driver +doesn't handle a mandatory property correctly. + +9.1 Known properties + + "Backlight" aka RR_PROPERTY_BACKLIGHT + Type: int32 + Flags: - + Range/List: 0-x (driver specific) + + This property controls the brightness on laptop panels and equivalent + displays with a backlight controller. The driver specific maximum + value MUST turn the backlight to full brightness, 1 SHOULD turn the + backlight to minimum brightness, 0 SHOULD turn the backlight off. + + "CloneList" aka RR_PROPERTY_CLONE_LIST + Type: int32 [2*n] / Atom pairs + Flags: Immutable + Range/List: 0- + + Some combinations of outputs on some cards cannot be served + independently from each other, because they are wired up to the same + encoder outputs. + This property lists all output + signal format pairs that are + driven together with this output, and thus can only be programmed in + clone mode with the same CRTC. + This property MUST be symmetric, but may change with changing signal + format. I.e. if the property for DVI-1/VGA specifies VGA-1/VGA to be + cloned, VGA-1/VGA has to list DVI-1/VGA as well. + Outputs / format pairs listed in this property MUST be included in the + CompatibilityList. + + "CompatibilityList" aka RR_PROPERTY_COMPATIBILITY_LIST + Type: int32 [2*n] / Atom pairs + Flags: Immutable + Range/List: 0- + + Some combinations of outputs on some cards cannot be served at all, + because the according encoder is only capable of driving one output at + a time. + This property lists all output + signal format pairs that can be + driven together with this output. NULL atoms specify any output / any + signal format, respectively. + This property MUST be symmetric, but may change with changing signal + format. I.e. if the property for DVI-1/TMDS specifies VGA-1/VGA to be + available, VGA-1/VGA has to list DVI-1/TMDS as well. + + "ConnectorNumber" aka RR_PROPERTY_CONNECTOR_NUMBER + Type: int32 + Flags: Immutable, Static + Range/List: 0- + + Outputs that route their signal to the same connector MUST + have the same connector number. Outputs with the same + connector number MUST route their signal to the same + connector, except if it is 0, which indicates unknown + connectivity. 1 is called the primary connector, 2 the + secondary. 3 is typically a TV connector, but that is completely + driver / hardware dependent. + Outputs with the same connector number SHOULD have the same + connector type. Meaning and client behavior for mismatching + connector types is undefined at the moment. + + "ConnectorType" aka RR_PROPERTY_CONNECTOR_TYPE + Type: int32 / Atom + Flags: Immutable, Static + Range/List: unknown VGA DVI DVI‐I DVI‐A DVI‐D HDMI Panel + TV TV-Composite TV-SVideo TV-Component + TV-SCART TV-C4 DisplayPort + + Connector type, as far as known to the driver. + Values with dashes (TV‐Composite) describe more specific versions of + the base values (TV). The former SHOULD be used if the connector is + not capable of producing other signal formats. The later SHOULD be + used if the exact connector is unknown, or the connector is a + multi‐format connector that is not described otherwise. DVI, for + instance, SHOULD be handled like a DVI‐I connector, unless additional + information is available to the user agent. PANEL describes + laptop‐internal (normally LVDS) displays. TV, TV‐SCART, TV‐Component, + and TV‐C4 with signal format VGA are valid combinations and describe + RGB TV signals. + + "EDID" aka RR_PROPERTY_RANDR_EDID + Type: int8 [n] + Flags: Immutable + Range/List: - + + Raw EDID data from the device attached to the according + output. Should include main EDID data and all extension + blocks. Previously known as EdidData. + + "SignalFormat" aka RR_PROPERTY_SIGNAL_FORMAT + Type: int32 / Atom + Flags: - + Range/List: unknown VGA TMDS LVDS Composite Composite-PAL + Composite-NTSC Composite-SECAM SVideo + Component DisplayPort + + Signal format / physical protocol format that is used for the + specified output. valid-values lists all possible formats on this + output, which SHOULD be a subset of the list above and MUST be static. + Values with dashes (Composite-PAL) describe more specific versions of + the base values (Composite) and SHOULD be used if known to the driver. + A driver MAY change this property of an output if the underlying + hardware indicates a protocol change (e.g. TV formats). Clients are + allowed to change the signal format in order to select a different + signal format (e.g. Composite etc.) or physical protocol (e.g. VGA or + TMDS on DVI-I). + Laptop panels SHOULD not be detected with this property, but rather by + ConnectorType. + + "SignalProperties" aka RR_PROPERTY_SIGNAL_FORMAT + Type: int32 [n] / Atom + Flags: - + Range/List: For Composite signals: + NTSC NTSC-M NTSC-J NTSC-N NTSC-4.43 NTSC-film + PAL PAL-B PAL-G PAL-H PAL-H PAL-I PAL-M PAL-D + PAL-N PAL-Nc PAL-L PAL-60 + SECAM SECAM-L SECAM-B SECAM-G SECAM-D SECAM-K + SECAM-H SECAM-K + For TMDS signals: + SingleLink DualLink + For DisplayPort signals: + Lane1 Lane2 Lane4 LowSpeed HiSpeed + + Properties of the signal format that is currently used for the + specified output. valid-values lists all possible properties on this + output, which SHOULD be a subset of the list above. It will change if + SignalFormat changes. Multiple properties are allowed. + Values with dashes (PAL-B) describe more specific versions of the base + values (PAL) and SHOULD be used if known to the driver. A driver MAY + change this property of an output if the underlying hardware indicates + a signal change (e.g. TV formats). Clients are allowed to change the + properties in order to select a different signal subformat. + + +9.2 Properties introduced with version 1.2 of the RandR extension + +Property Immutable Mandatory since +──────── ───────── ─────────────── +EDID yes n/a + +EDID is provided by the RandR frontend, thus not driver specific. + + +9.3 Properties introduced with version 1.3 of the RandR extension + +Property Immutable Mandatory since +──────── ───────── ─────────────── +CloneList yes not mandatory +CompatibilityList yes not mandatory +ConnectorNumber yes: static not mandatory +ConnectorType yes: static RandR 1.3 +SignalFormat no RandR 1.3 +SignalProperties no not mandatory + +9.4 Properties introduced with version 1.3.1 of the RandR extension + +Property Immutable Mandatory since +──────── ───────── ─────────────── +Backlight no not mandatory + + ❧❧❧❧❧❧❧❧❧❧❧ + +10. Extension Versioning + +The RandR extension was developed in parallel with the implementation +to ensure the feasibility of various portions of the design. As +portions of the extension are implemented, the version number of the +extension has changed to reflect the portions of the standard provided. +This document describes the version 1.2 of the specification, the +partial implementations have version numbers less than that. Here's a +list of what each version provided: + + 0.0: This prototype implemented resize and rotation in the + TinyX server Used approximately the protocol described in + the Usenix paper. Appeared in the TinyX server in + XFree86 4.2, but not in the XFree86 main server. + + 0.1: Added subpixel order, added an event for subpixel order. + This version was never checked in to XFree86 CVS. + + 1.0: Implements resize, rotation, and reflection. Implemented + both in the XFree86 main server (size change only at this + date), and fully (size change, rotation, and reflection) + in XFree86's TinyX server. + + 1.1: Added refresh rates + + 1.2: Separate screens from CRTCs and outputs, switch to full VESA + modes + + 1.3: Added cheap version of RRGetScreenResources. Added CRTC + transformations. Added panning. Added primary outputs. + Added standard properties. + +Compatibility between 0.0 and 1.0 was *NOT* preserved, and 0.0 clients +will fail against 1.0 servers. The wire encoding op-codes were +changed for GetScreenInfo to ensure this failure in a relatively +graceful way. Version 1.1 servers and clients are cross compatible with +1.0. Version 1.1 is considered to be stable and we intend upward +compatibility from this point. Version 1.2 offers an extended model of the +system with multiple output support. Version 1.3 adds a cheap version of +GetScreenResources to avoid expensive DDC operations, CRTC transformations, +panning, and the primary output concept. 1.2 and 1.3 are backward-compatible +with 1.1. + + ❧❧❧❧❧❧❧❧❧❧❧ + +11. Relationship with other extensions + +Two other extensions have a direct relationship with this extension. This +section attempts to explain how these three are supposed to work together. + +11.1 XFree86-VidModeExtension + +XFree86-VidModeExtension changes the configuration of a single monitor +attached to the screen without changing the configuration of the screen +itself. It provides the ability to specify new mode lines for the server to +use along with selecting among existing mode lines. As it uses screen +numbers instead of window identifiers, it can be used to affect multiple +monitors in a single-screen Xinerama configuration. However, the association +between screen numbers and root windows in a multi-Screen environment is not +defined by the extension. Version 2.0 of this extension added the ability to +adjust the DAC values in a TrueColor server to modify the brightness curves +of the display. + +All of the utility of this extension is subsumed by RandR version 1.2, RandR +should be used in preference to XFree86-VidModeExtension where both are +present. + +11.2 Xinerama + +Xinerama provides a mechanism for describing the relationship between the +overall screen display and monitors placed within that area. As such, it +provides the query functionality of RandR 1.2 without any of the +configuration functionality. Applications using Xinerama to discover +monitor geometry can continue to do so, with the caveat that they will not be +informed of changes when they occur. However, Xinerama configuration data +will be updated, so applications selecting for RandR notification and +re-querying the configuration with the Xinerama extension will get updated +information. It is probably better to view RandR as a superset of Xinerama +at this point and use it in preference to Xinerama where both are present. + + ❧❧❧❧❧❧❧❧❧❧❧ + +Appendix A. Protocol Encoding + +Syntactic Conventions + +This document uses the same syntactic conventions as the core X +protocol encoding document. + +A.1 Common Types + +┌─── + ROTATION + 0x0001 Rotate_0 + 0x0002 Rotate_90 + 0x0004 Rotate_180 + 0x0008 Rotate_270 + 0x0010 Reflect_X + 0x0020 Reflect_Y +└─── + Used to encode both sets of possible rotations and individual + selected rotations. + +┌─── + RRSELECTMASK + 0x0001 ScreenChangeNotifyMask + 0x0002 CrtcChangeNotifyMask Added in version 1.2 + 0x0004 OutputChangeNotifyMask Added in version 1.2 + 0x0008 OutputPropertyNotifyMask Added in version 1.2 +└─── + Event select mask for RRSelectInput + +┌─── + RRCONFIGSTATUS + 0x0 Success + 0x1 InvalidConfigTime + 0x2 InvalidTime + 0x3 Failed +└─── + Return status for requests which depend on time. + +┌─── + MODEINFO (32) Added in version 1.2 + 4 CARD32 id + 2 CARD16 width in pixels + 2 CARD16 height in pixels + 4 CARD32 dot clock + 2 CARD16 h sync start + 2 CARD16 h sync end + 2 CARD16 h total + 2 CARD16 h skew + 2 CARD16 v sync start + 2 CARD16 v sync end + 2 CARD16 v total + 2 CARD16 name length + 4 SETofMODEFLAG mode flags +└─── + + An output mode specifies the complete CRTC timings for + a specific mode. The vertical and horizontal synchronization rates + can be computed given the dot clock and the h total/v total + values. If the dot clock is zero, then all of the timing + parameters and flags are not used, and must be zero as this + indicates that the timings are unknown or otherwise unused. + The name itself will be encoded separately in each usage. + +┌─── + MODEFLAG + 0x00000001 HSyncPositive + 0x00000002 HSyncNegative + 0x00000004 VSyncPositive + 0x00000008 VSyncNegative + 0x00000010 Interlace + 0x00000020 DoubleScan + 0x00000040 CSync + 0x00000080 CSyncPositive + 0x00000100 CSyncNegative + 0x00000200 HSkewPresent + 0x00000400 BCast + 0x00000800 PixelMultiplex + 0x00001000 DoubleClock + 0x00002000 ClockDivideBy2 +└─── +┌─── + CONNECTION + 0 Connected + 1 Disconnected + 2 UnknownConnection +└─── + + +A.2 Protocol Requests + +Opcodes 1 and 3 were used in the 0.0 protocols, and will return +errors if used in version 1.0. + +┌─── + RRQueryVersion + + 1 CARD8 major opcode + 1 0 RandR opcode + 2 3 length + 4 CARD32 major version + 4 CARD32 minor version + ▶ + 1 1 Reply + 1 unused + 2 CARD16 sequence number + 4 0 reply length + 1 CARD32 major version + 1 CARD32 minor version +└─── +┌─── + RRSetScreenConfig + + 1 CARD8 major opcode + 1 2 RandR opcode + 2 6 length + 4 WINDOW window on screen to be configured + 4 TIMESTAMP timestamp + 4 TIMESTAMP config timestamp + 2 SIZEID size index + 2 ROTATION rotation/reflection + 2 CARD16 refresh rate (1.1 only) + 2 CARD16 pad + ▶ + 1 1 Reply + 1 RRCONFIGSTATUS status + 2 CARD16 sequence number + 4 0 reply length + 4 TIMESTAMP new timestamp + 4 TIMESTAMP new configuration timestamp + 4 WINDOW root + 2 SUBPIXELORDER subpixel order defined in Render + 2 CARD16 pad4 + 4 CARD32 pad5 + 4 CARD32 pad6 +└─── +┌─── + RRSelectInput + + 1 CARD8 major opcode + 1 4 RandR opcode + 2 3 length + 4 WINDOW window + 2 SETofRRSELECTMASK enable + 2 CARD16 pad +└─── +┌─── + RRGetScreenInfo + + 1 CARD8 major opcode + 1 5 RandR opcode + 2 2 length + 4 WINDOW window + ▶ + 1 1 Reply + 1 CARD8 set of Rotations + 2 CARD16 sequence number + 4 0 reply length + 4 WINDOW root window + 4 TIMESTAMP timestamp + 4 TIMESTAMP config timestamp + 2 CARD16 number of SCREENSIZE following + 2 SIZEID current size index + 2 ROTATION current rotation and reflection + 2 CARD16 current rate (added in version 1.1) + 2 CARD16 length of rate info (number of CARD16s) + 2 CARD16 pad + + SCREENSIZE + 2 CARD16 width in pixels + 2 CARD16 height in pixels + 2 CARD16 width in millimeters + 2 CARD16 height in millimeters + + REFRESH + 2 CARD16 number of rates (n) + 2n CARD16 rates +└─── + +A.2.1 Protocol Requests added with version 1.2 + +┌─── + RRGetScreenSizeRange + 1 CARD8 major opcode + 1 6 RandR opcode + 2 2 length + 4 WINDOW window + ▶ + 1 1 Reply + 1 unused + 2 CARD16 sequence number + 4 0 reply length + 2 CARD16 minWidth + 2 CARD16 minHeight + 2 CARD16 maxWidth + 2 CARD16 maxHeight + 16 unused +└─── +┌─── + RRSetScreenSize + 1 CARD8 major opcode + 1 7 RandR opcode + 2 5 length + 4 WINDOW window + 2 CARD16 width + 2 CARD16 height + 4 CARD32 width in millimeters + 4 CARD32 height in millimeters +└─── +┌─── + RRGetScreenResources + 1 CARD8 major opcode + 1 8 RandR opcode + 2 2 length + 4 WINDOW window + ▶ + 1 1 Reply + 1 unused + 2 CARD16 sequence number + 4 c+o+8m+(b+p)/4 reply length + 4 TIMESTAMP timestamp + 4 TIMESTAMP config-timestamp + 2 c number of CRTCs + 2 o number of outputs + 2 m number of modeinfos + 2 b total bytes in mode names + 8 unused + 4c LISTofCRTC crtcs + 4o LISTofOUTPUT outputs + 32m LISTofMODEINFO modeinfos + b STRING8 mode names + p unused, p=pad(b) +└─── +┌─── + RRGetOutputInfo + 1 CARD8 major opcode + 1 9 RandR opcode + 2 3 length + 4 OUTPUT output + 4 TIMESTAMP config-timestamp + ▶ + 1 1 Reply + 1 RRCONFIGSTATUS status + 2 CARD16 sequence number + 4 1+c+m+(n+p)/4 reply length + 4 TIMESTAMP timestamp + 4 CRTC current connected crtc + 4 CARD32 width in millimeters + 4 CARD32 height in millimeters + 1 CONNECTION connection + 1 SUBPIXELORDER subpixel-order + 2 c number of CRTCs + 2 m number of modes + 2 p number of preferred modes + 2 o number of clones + 2 n length of name + 4c LISTofCRTC crtcs + 4m LISTofMODE modes + 4o LISTofOUTPUT clones + n STRING8 name + p unused, p=pad(n) +└─── +┌─── + RRListOutputProperties + 1 CARD8 major opcode + 1 10 RandR opcode + 2 2 length + 4 OUTPUT output + ▶ + 1 1 Reply + 1 unused + 2 CARD16 sequence number + 4 n reply length + 2 n number of ATOMs in atoms + 22 unused + 4n LISTofATOM atoms +└─── +┌─── + RRQueryOutputProperty + 1 CARD8 major opcode + 1 11 RandR opcode + 2 3 request length + 4 OUTPUT output + 4 ATOM property + ▶ + 1 1 Reply + 1 unused + 2 CARD16 sequence number + 4 n reply length + 1 BOOL pending + 1 BOOL range + 1 BOOL immutable + 21 unused + 4n LISTofINT32 valid values +└─── +┌─── + RRConfigureOutputProperty + 1 CARD8 major opcode + 1 12 RandR opcode + 2 4+n request length + 4 OUTPUT output + 4 ATOM property + 1 BOOL pending + 1 BOOL range + 2 unused + 4n LISTofINT32 valid values +└─── +┌─── + RRChangeOutputProperty + 1 CARD8 major opcode + 1 13 RandR opcode + 2 6+(n+p)/4 request length + 4 OUTPUT output + 4 ATOM property + 4 ATOM type + 1 CARD8 format + 1 mode + 0 Replace + 1 Prepend + 2 Append + 2 unused + 4 CARD32 length of data in format units + (= n for format = 8) + (= n/2 for format = 16) + (= n/4 for format = 32) + n LISTofBYTE data + (n is a multiple of 2 for format = 16) + (n is a multiple of 4 for format = 32) + p unused, p=pad(n) +└─── +┌─── + RRDeleteOutputProperty + 1 CARD8 major opcode + 1 14 RandR opcode + 2 3 request length + 4 OUTPUT output + 4 ATOM property +└─── +┌─── + RRGetOutputProperty + 1 CARD8 major opcode + 1 15 RandR opcode + 2 7 request length + 4 OUTPUT output + 4 ATOM property + 4 ATOM type + 0 AnyPropertyType + 4 CARD32 long-offset + 4 CARD32 long-length + 1 BOOL delete + 1 BOOL pending + 2 unused + ▶ + 1 1 Reply + 1 CARD8 format + 2 CARD16 sequence number + 4 (n+p)/4 reply length + 4 ATOM type + 0 None + 4 CARD32 bytes-after + 4 CARD32 length of value in format units + (= 0 for format = 0) + (= n for format = 8) + (= n/2 for format = 16) + (= n/4 for format = 32) + 12 unused + n LISTofBYTE value + (n is zero for format = 0) + (n is a multiple of 2 for format = 16) + (n is a multiple of 4 for format = 32) + p unused, p=pad(n) +└─── +┌─── + RRCreateMode + 1 CARD8 major opcode + 1 16 RandR opcode + 2 12+(n+p)/4 length + 4 WINDOW window + 32 MODEINFO mode + n STRING8 mode name + p unused, p=pad(n) + ▶ + 1 1 Reply + 1 unused + 2 CARD16 sequence number + 4 0 reply length + 4 MODE mode + 20 unused +└─── +┌─── + RRDestroyMode + 1 CARD8 major opcode + 1 17 RandR opcode + 2 2 length + 4 MODE mode +└─── +┌─── + RRAddOutputMode + 1 CARD8 major opcode + 1 18 RandR opcode + 2 3 length + 4 OUTPUT output + 4 MODE mode +└─── +┌─── + RRDeleteOutputMode + 1 CARD8 major opcode + 1 19 RandR opcode + 2 3 length + 4 OUTPUT output + 4 MODE mode +└─── +┌─── + RRGetCrtcInfo + 1 CARD8 major opcode + 1 20 RandR opcode + 2 3 length + 4 CRTC crtc + 4 TIMESTAMP config-timestamp + ▶ + 1 1 Reply + 1 RRCONFIGSTATUS status + 2 CARD16 sequence number + 4 o+p reply length + 4 TIMESTATMP timestamp + 2 INT16 x + 2 INT16 y + 2 CARD16 width + 2 CARD16 height + 4 MODE mode + 2 ROTATION current rotation and reflection + 2 ROTATION set of possible rotations + 2 o number of outputs + 2 p number of possible outputs + 4o LISTofOUTPUT outputs + 4p LISTofOUTPUT possible outputs +└─── +┌─── + RRSetCrtcConfig + 1 CARD8 major opcode + 1 21 RandR opcode + 2 7+2n length + 4 CRTC crtc + 4 TIMESTAMP timestamp + 4 TIMESTAMP config timestamp + 2 INT16 x + 2 INT16 y + 4 MODE mode + 2 ROTATION rotation/reflection + 2 unused + 8n LISTofOUTPUT outputs + ▶ + 1 1 Reply + 1 RRCONFIGSTATUS status + 2 CARD16 sequence number + 4 0 reply length + 4 TIMESTAMP new timestamp + 20 unused +└─── +┌─── + RRGetCrtcGammaSize + 1 CARD8 major opcode + 1 22 RandR opcode + 2 2 length + 4 CRTC crtc + ▶ + 1 1 Reply + 1 unused + 2 CARD16 sequence number + 4 0 reply length + 2 CARD16 size + 22 unused +└─── +┌─── + RRGetCrtcGamma + 1 CARD8 major opcode + 1 23 RandR opcode + 2 2 length + 4 CRTC crtc + ▶ + 1 1 Reply + 1 unused + 2 CARD16 sequence number + 4 (6n+2)/4 reply length + 2 n size + 20 unused + 2n LISTofCARD16 red + 2n LISTofCARD16 green + 2n LISTofCARD16 blue + p unused, p=pad(6n) +└─── +┌─── + RRSetCrtcGamma + 1 CARD8 major opcode + 1 24 RandR opcode + 2 3+(6n+2)/4 length + 4 CRTC crtc + 2 n size + 2 unused + 2n LISTofCARD16 red + 2n LISTofCARD16 green + 2n LISTofCARD16 blue + p unused, p=pad(6n) +└─── + +A.2.2 Protocol Requests added with version 1.3 + +┌─── + RRGetScreenResourcesCurrent + 1 CARD8 major opcode + 1 25 RandR opcode + 2 2 length + 4 WINDOW window + ▶ + 1 1 Reply + 1 unused + 2 CARD16 sequence number + 4 c+o+8m+(b+p)/4 reply length + 4 TIMESTAMP timestamp + 4 TIMESTAMP config-timestamp + 2 c number of CRTCs + 2 o number of outputs + 2 m number of modeinfos + 2 b total bytes in mode names + 8 unused + 4c LISTofCRTC crtcs + 4o LISTofOUTPUT outputs + 32m LISTofMODEINFO modeinfos + b STRING8 mode names + p unused, p=pad(b) +└─── + +┌─── + RRSetCrtcTransform + 1 CARD8 major opcode + 1 26 RandR opcode + 2 12+(n+p)/4+v length + 4 CRTC crtc + 36 TRANSFORM transform + 2 CARD16 filter length + 2 unused + n STRING8 filter name + p unused, p=pad(n) + 4v FIXED filter params +└─── + +┌─── + RRGetCrtcTransform + 1 CARD8 major opcode + 1 27 RandR opcode + 2 2 length + 4 CRTC crtc + ▶ + 1 1 Reply + 1 unused + 2 CARD16 sequence number + 4 16+(pn+pnp)/4+(cn+cnp)/4+pf+cf reply length + 36 TRANSFORM pending transform + 1 BOOL has transforms + 3 unused + 36 TRANSFORM current transform + 4 unused + 2 pn pending filter name length + 2 pf pending filter num params + 2 cn current filter name length + 2 cf current filter num params + pn STRING8 pending filter name + pnp unused, pnp=pad(pn) + 4*pf FIXED pending filter params + cn STRING8 current filter name + cnp unused, cnp=pad(cn) + 4*cf FIXED current filter params +└─── + +┌─── + RRGetPanning + 1 CARD8 major opcode + 1 28 RandR opcode + 2 2 length + 4 CRTC crtc + ▶ + 1 1 Reply + 1 RRCONFIGSTATUS status + 2 CARD16 sequence number + 4 1 reply length + 4 TIMESTAMP timestamp + 2 CARD16 left + 2 CARD16 top + 2 CARD16 width + 2 CARD16 height + 2 CARD16 track_left + 2 CARD16 track_top + 2 CARD16 track_width + 2 CARD16 track_height + 2 INT16 border_left + 2 INT16 border_top + 2 INT16 border_right + 2 INT16 border_bottom +└─── +┌─── + RRSetPanning + 1 CARD8 major opcode + 1 29 RandR opcode + 2 9 length + 4 CRTC crtc + 4 TIMESTAMP timestamp + 2 CARD16 left + 2 CARD16 top + 2 CARD16 width + 2 CARD16 height + 2 CARD16 track_left + 2 CARD16 track_top + 2 CARD16 track_width + 2 CARD16 track_height + 2 INT16 border_left + 2 INT16 border_top + 2 INT16 border_right + 2 INT16 border_bottom + ▶ + 1 1 Reply + 1 RRCONFIGSTATUS status + 2 CARD16 sequence number + 4 0 reply length + 4 TIMESTAMP new timestamp + 20 unused +└─── + +┌─── + RRSetOutputPrimary + 1 CARD8 major opcode + 1 30 RandR opcode + 2 3 length + 4 WINDOW window + 4 OUTPUT output +└─── + +┌─── + RRGetOutputPrimary + 1 CARD8 major opcode + 1 31 RandR opcode + 2 2 length + 4 WINDOW window + ▶ + 1 1 Reply + 1 unused + 2 CARD16 sequence number + 4 CARD32 length + 4 OUTPUT output + 4 CARD32 pad1 + 4 CARD32 pad2 + 4 CARD32 pad3 + 4 CARD32 pad4 +└─── + +A.3 Protocol Events + +┌─── + RRScreenChangeNotify + 1 Base + 0 code + 1 ROTATION new rotation and reflection + 2 CARD16 sequence number + 4 TIMESTAMP timestamp + 4 TIMESTAMP configuration timestamp + 4 WINDOW root window + 4 WINDOW request window + 2 SIZEID size ID + 2 SUBPIXELORDER subpixel order defined in Render + 2 CARD16 width in pixels + 2 CARD16 height in pixels + 2 CARD16 width in millimeters + 2 CARD16 height in millimeters +└─── + +A.3.1 Protocol Events added with version 1.2 + +┌─── + RRCrtcChangeNotify + 1 Base + 1 code + 1 0 sub-code + 2 CARD16 sequence number + 4 TIMESTAMP timestamp + 4 WINDOW request window + 4 CRTC crtc affected + 4 MODE mode in use + 2 ROTATION new rotation and reflection + 2 unused + 2 INT16 x + 2 INT16 y + 2 CARD16 width + 2 CARD16 height +└─── +┌─── + RROutputChangeNotify + 1 Base + 1 code + 1 1 sub-code + 2 CARD16 sequence number + 4 TIMESTAMP timestamp + 4 TIMESTAMP configuration timestamp + 4 WINDOW request window + 4 OUTPUT output affected + 4 CRTC crtc in use + 4 MODE mode in use + 2 ROTATION rotation in use + 1 CONNECTION connection status + 1 SUBPIXELORDER subpixel order +└─── +┌─── + RROutputPropertyNotify + 1 Base + 1 code + 1 2 sub-code + 2 CARD16 sequence number + 4 WINDOW window + 4 OUTPUT output + 4 ATOM atom + 4 TIMESTAMP time + 1 state + 0 NewValue + 1 Deleted + 11 unused +└─── + +A.4 Protocol Errors + +┌─── + ERRORS + Base + 0 Output + Base + 1 Crtc + Base + 2 Mode +└─── + +Bibliography + +[RANDR] Gettys, Jim and Keith Packard, "The X Resize and Rotate + Extension - RandR", Proceedings of the 2001 USENIX Annual + Technical Conference, Boston, MA + +[RENDER] + Packard, Keith, "The X Rendering Extension", work in progress, + http://cgit.freedesktop.org/xorg/proto/renderproto/tree/renderproto.txt |