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-rw-r--r--X11/extensions/randr.h336
-rw-r--r--X11/extensions/randrproto.h1724
-rw-r--r--X11/extensions/randrproto.txt4956
3 files changed, 3672 insertions, 3344 deletions
diff --git a/X11/extensions/randr.h b/X11/extensions/randr.h
index 1ee95f936..fec7f4f4e 100644
--- a/X11/extensions/randr.h
+++ b/X11/extensions/randr.h
@@ -1,163 +1,173 @@
-/*
- * 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 3
-
-#define RRNumberErrors 3
-#define RRNumberEvents 2
-#define RRNumberRequests 32
-
-#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)
-
-/* 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_ */
+/*
+ * 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_ */
diff --git a/X11/extensions/randrproto.h b/X11/extensions/randrproto.h
index 3b98a9f1f..298d4cfad 100644
--- a/X11/extensions/randrproto.h
+++ b/X11/extensions/randrproto.h
@@ -1,802 +1,922 @@
-/*
- * 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 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
-
-/*
- * 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 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;
+ 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_ */
diff --git a/X11/extensions/randrproto.txt b/X11/extensions/randrproto.txt
index 016532c33..9fe800f0c 100644
--- a/X11/extensions/randrproto.txt
+++ b/X11/extensions/randrproto.txt
@@ -1,2379 +1,2577 @@
- 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.
-
-1.1 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 }
-
- ❧❧❧❧❧❧❧❧❧❧❧
-
-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.
-
- ❧❧❧❧❧❧❧❧❧❧❧
-
-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 1.3.1
+ 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
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 19:01:11 +0000