diff options
Diffstat (limited to 'randrproto.txt')
| -rw-r--r-- | randrproto.txt | 596 |
1 files changed, 367 insertions, 229 deletions
diff --git a/randrproto.txt b/randrproto.txt index 6206e4c..7861bcf 100644 --- a/randrproto.txt +++ b/randrproto.txt @@ -110,7 +110,7 @@ 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. -2. Acknowlegements +1.1 Acknowlegements Our thanks to the contributors to the design found on the xpert mailing list, in particular: @@ -124,6 +124,8 @@ Thomas Winischhofer for the hardware-accelerated SiS rotation implementation Matthew Tippet 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 @@ -166,15 +168,28 @@ 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 -There are no new error types defined by this extension. +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 @@ -198,9 +213,9 @@ SIZEID { CARD16 } MODE { XID or None } -CRTC { CARD16 } +CRTC { XID } -OUTPUT { CARD16 } +OUTPUT { XID } CONNECTION { Connected, Disconnected, UnknownConnection } @@ -224,16 +239,19 @@ MODEFLAG { hsync_positive hsync_negative double_clock clock_divide_by_2 } -OUTPUTMODE { id: MODE - widthInPixels, heightInPixels: CARD16 - widthInMillimeters, heightInMillimeters: CARD32 - dotClock: CARD32 - hSyncStart, hSyncEnd, hTotal, hSkew: CARD16 - vSyncStart, vSyncEnd, vTotal: CARD16 - modeFlags: SETofMODEFLAG } +MODEINFO { id: MODE + name: STRING + widthInPixels, heightInPixels: CARD16 + widthInMillimeters, heightInMillimeters: CARD32 + 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". @@ -255,6 +273,8 @@ RRQueryVersion It is the clients responsibility to ensure that the server supports a version which is compatible with its expectations. + ❧❧❧❧❧❧❧❧❧❧❧ + 7. Extension Requests RRSelectInput @@ -344,11 +364,10 @@ RRSetScreenConfig Value errors are generated when 'rotation', 'rate' or 'size-id' are invalid. -RRGetScreenInfo +┌─── + RRGetScreenInfo window: WINDOW - - ▶ - + ▶ rotations: SETofROTATION root: WINDOW timestamp: TIMESTAMP @@ -358,8 +377,7 @@ RRGetScreenInfo rate: CARD16 sizes: LISTofSCREENSIZE refresh: LISTofREFRESH - - where: +└─── Errors: Window @@ -397,8 +415,6 @@ RRGetScreenInfo 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 @@ -409,26 +425,28 @@ 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 +┌─── + 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 +┌─── + 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 @@ -441,20 +459,20 @@ RRSetScreenSize extension and the core protocol. They must be non-zero, or Value error results. -RRGetScreenResources +┌─── + RRGetScreenResources window: WINDOW - - ▶ - + ▶ timestamp: TIMESTAMP config-timestamp: TIMESTAMP - number-of-crtcs: CARD16 - number-of-outputs: CARD16 - + crtcs: LISTofCRTC + outputs: LISTofOUTPUT + modes: LISTofMODEINFO +└─── Errors: Window - RRGetScreenResources returns information about the number of outputs - and crtcs connected to the screen associated with 'window'. + RRGetScreenResources returns the list of outputs and crtcs connected + to the screen associated with 'window'. 'timestamp' indicates when the configuration was last set. @@ -464,43 +482,49 @@ RRGetScreenResources to date, to ensure clients can be well behaved in the face of race conditions. - 'number-of-crtcs' indicates the valid range of CRTC indices. + 'crtcs' contains the list of CRTCs associated with the screen. - 'number-of-outputs' indicates the valid range of OUTPUT indices. + 'outputs' contains the list of outputs associated with the screen. -RRGetOutputInfo - window: WINDOW + '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. Requests for + further information should not poll, but rather return the data + collected at this point. + +┌─── + RRGetOutputInfo output: OUTPUT - - ▶ - + config-timestamp: TIMESTAMP + ▶ + status: RRCONFIGSTATUS timestamp: TIMESTAMP crtc: CRTC - config-timestamp: TIMESTAMP name: STRING connection: CONNECTION crtcs: LISTofCRTC clones: LISTofOUTPUT - modes: LISTofOUTPUTMODE + modes: LISTofMODE +└─── - Errors: Window + Errors: Output, RRGetOutputInfo returns information about the current and available - configurations for the specified output connected to the screen - associated with 'window'. + 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. - '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. - '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". @@ -522,21 +546,78 @@ RRGetOutputInfo connect this output to a CRTC not using one of these modes results in a Match error. -RRGetCrtcInfo - window: WINDOW - crtc: CRTC +┌─── + 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 - config-timestamp: TIMESTAMP rotations: SETofROTATION - default-mode: MODE - outputs: LISTofOUTPUT + possible-outputs: LISTofOUTPUT +└─── Errors: Window @@ -544,71 +625,36 @@ RRGetCrtcInfo 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 presented by this + CRTC. - 'mode' indicates which mode is active, or Disabled indicating - that the CRTC has been disabled and is not displaying the screen - contents. + '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. - 'config-timestamp' indicates when the configuration information last - changed. Requests to configure the CRTC 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. - + '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. - 'default-mode' is the mode the CRTC is set to at server - reset time. + 'possible-outputs' lists all of the outputs which may be connected + to this CRTC. -RRAddOutputMode - window: WINDOW - output: OUTPUT - config-timestamp: TIMESTAMP - timestamp: TIMESTAMP - mode: OUTPUTMODE - - ▶ - - Errors: Window, Value, Match, Name - - 'window' and 'output' which output is to be configured. If 'output' - is out of range, a Value error is returned. - - 'mode' provides a new mode for the output. If the name of 'mode' - names an existing mode, a Name error is returned. If 'mode' cannot be - supported by the specified output, a Match error is returned. If some - parameter of the mode is not valid in some other way, a Value error - is returned. - - This request generates OutputChangeNotify events. - -RRDeleteOutputMode - window: WINDOW - output: OUTPUT - name: STRING - - ▶ - - Errors: Window, Value, Name - - 'window' and 'output' indicate which output is to be configured. If - 'output' is out of range, a Value error is returned. - - 'name' specifies which mode to delete. If no mode of the specified - name exists, a Name error is returned. The named mode must have been - added with RRAddOutputMode, else an Access error is returned. The - named mode must not be active, else a Match error is returned. - -RRSetCrtcConfig - window: WINDOW +┌─── + RRSetCrtcConfig crtc: CRTC timestamp: TIMESTAMP config-timestamp: TIMESTAMP @@ -616,16 +662,11 @@ RRSetCrtcConfig mode: MODE rotation: ROTATION outputs: LISTofOUTPUT - - ▶ - + ▶ status: RRCONFIGSTATUS new-timestamp: TIMESTAMP - config-timestamp: TIMESTAMP - root: WINDOW - monitor: CRTC subpixelOrder: SUBPIXELORDER - +└─── Errors: Value, Match If 'timestamp' is less than the time when the configuration was last @@ -680,15 +721,11 @@ RRSetCrtcConfig '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 monitor to allow correct subpixel rendering. + ❧❧❧❧❧❧❧❧❧❧❧ + 8. Extension Events Clients MAY select for ConfigureNotify on the root window to be @@ -700,7 +737,8 @@ RRScreenChangeNotify is sent if RRSelectInput has requested it whenever properties of the screen change, which may be due to external factors, such as recabling a monitor, etc. -RRScreenChangeNotify +┌─── + RRScreenChangeNotify rotation: ROTATION; new rotation sequenceNumber: CARD16 low 16 bits of request's seq. number @@ -714,7 +752,7 @@ RRScreenChangeNotify heightInPixels: CARD16 widthInMillimeters: CARD16 heightInMillimeters: CARD16 - +└─── 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 @@ -741,12 +779,17 @@ RRScreenChangeNotify 8.1 Events added in version 1.2 of the RandR extension -RROutputChangeNotify: +┌─── + RROutputChangeNotify: sequence-number: CARD16 low 16 bits of request's seq. number timestamp: TIMESTAMP time screen was reconfigured config-timestamp: TIMESTAMP time available config data was changed - root: WINDOW root window of screen 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' @@ -757,8 +800,8 @@ RROutputChangeNotify: precise change can be detected by examining the new state of the system. -RRCrtcChangeNotify /* XXX need to fit to 32 bytes */ - +┌─── + RRCrtcChangeNotify /* XXX need to fit to 32 bytes */ sequence-number: CARD16 low 16 bits of request's seq. number timestamp: TIMESTAMP time monitor was changed config-timestamp: TIMESTAMP time config data was changed @@ -770,7 +813,7 @@ RRCrtcChangeNotify /* XXX need to fit to 32 bytes */ subpixelOrder: SUBPIXELORDER order of subpixels x: INT16 x position of CRTC within screen y: INT16 y position of CRTC within screen - +└─── This event is generated whenever the CRTC configuration is changed and sent to requesting clients. 'timestamp' indicates when the CRTC configuration was changed. 'config-timestamp' says when the @@ -795,6 +838,8 @@ RRCrtcChangeNotify /* XXX need to fit to 32 bytes */ just at the time when a display manager or log in script might be changing the monitor size or configuration. + ❧❧❧❧❧❧❧❧❧❧❧ + 9. Extension Versioning The RandR extension was developed in parallel with the implementation @@ -820,7 +865,8 @@ list of what each version before 1.0 implemented: 1.1: Added refresh rates - 1.2: Separate out screens from monitors, switch to full VESA modes + 1.2: Separate screens from CRTCs and outputs, switch to full VESA + modes 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 @@ -829,6 +875,8 @@ 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. + ❧❧❧❧❧❧❧❧❧❧❧ + 10. Relationship with other extensions Two other extensions have a direct relationship with this extension. This @@ -866,6 +914,8 @@ 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 @@ -876,29 +926,38 @@ protocol encoding document. A.1 Common Types - ROTATION +┌─── + 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 +┌─── + RRSELECTMASK 0x0001 ScreenChangeNotifyMask 0x0002 CrtcChangeNotifyMask Added in version 1.2 - - RRCONFIGSTATUS + 0x0004 OutputChangeNotifyMask 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. - SIZEID - 0xffff Disabled - - CRTCMODE (36) Added in version 1.2 +┌─── + MODEINFO (40) Added in version 1.2 + 4 CARD32 id 2 CARD16 width in pixels 2 CARD16 height in pixels 4 CARD32 width in millimeters @@ -911,41 +970,41 @@ A.1 Common Types 2 CARD16 v sync start 2 CARD16 v sync end 2 CARD16 v total - 2 CARD16 name length (n) + 2 CARD16 name length 4 SETofMODEFLAG mode flags +└─── - A monitor mode specifies the complete CRTC timings for + An output mode specifies the complete CRTC timings for a specfic 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 location of the name in the encoding is specified separately - A.2 Protocol Requests - Opcodes 0x1 and 0x3 were used in the 0.0 protocols, and will return errors if used in version 1.0. - RRQueryVersion +┌─── + RRQueryVersion 1 CARD8 major opcode - 1 0x01 RandR opcode + 1 0x00 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 +┌─── + RRSetScreenConfig 1 CARD8 major opcode 1 0x02 RandR opcode @@ -957,7 +1016,7 @@ errors if used in version 1.0. 2 ROTATION rotation/reflection 2 CARD16 refresh rate (1.1 only) 2 CARD16 pad - ▶ + ▶ 1 1 Reply 1 RRCONFIGSTATUS status 2 CARD16 sequence number @@ -969,9 +1028,10 @@ errors if used in version 1.0. 2 CARD16 pad4 4 CARD32 pad5 4 CARD32 pad6 - - - RRSelectInput +└─── + +┌─── + RRSelectInput 1 CARD8 major opcode 1 0x04 RandR opcode @@ -979,15 +1039,16 @@ errors if used in version 1.0. 4 WINDOW window 2 SETofRRSELECTMASK enable 2 CARD16 pad - - - RRGetScreenInfo +└─── + +┌─── + RRGetScreenInfo 1 CARD8 major opcode 1 0x05 RandR opcode 2 2 length 4 WINDOW window - ▶ + ▶ 1 1 Reply 1 CARD8 set of Rotations 2 CARD16 sequence number @@ -1011,16 +1072,17 @@ errors if used in version 1.0. REFRESH 2 CARD16 number of rates (n) 2n CARD16 rates +└─── A.2.1 Protocol Requests added with version 1.2 - RRGetScreenSizeRange - +┌─── + RRGetScreenSizeRange 1 CARD8 major opcode 1 0x06 RandR opcode 2 2 length 4 WINDOW window - ▶ + ▶ 1 1 Reply 1 unused 2 CARD16 sequence number @@ -1033,10 +1095,10 @@ A.2.1 Protocol Requests added with version 1.2 4 unused 4 unused 4 unused +└─── - - RRSetScreenSize - +┌─── + RRSetScreenSize 1 CARD8 major opcode 1 0x07 RandR opcode 2 5 length @@ -1045,93 +1107,152 @@ A.2.1 Protocol Requests added with version 1.2 2 CARD16 height 4 CARD32 width in millimeters 4 CARD32 height in millimeters - +└─── - RRGetCrtcInfo - +┌─── + RRGetScreenResources 1 CARD8 major opcode 1 0x08 RandR opcode 2 2 length 4 WINDOW window - ▶ + ▶ 1 1 Reply 1 unused 2 CARD16 sequence number - 4 i*6 + m*9 + (b+p)/4 reply length - 4 WINDOW root - 2 CARD16 i = number of CRTCINFO following - 2 CARD16 m = number of CRTCMODE following - 2 CARD16 b = size of name array following - 14 unused - i*24 LISTofCRTCINFO one per monitor - m*36 LISTofCRTCMODE for all monitors - b LISTofCARD8 list of mode names - p pad pad(b) - - CRTCINFO + 4 c+o+10m+(b+p)/4 reply length 4 TIMESTAMP timestamp 4 TIMESTAMP config-timestamp - 2 INT16 x - 2 INT16 y - 2 ROTATION rotation - 2 MODE mode - 2 MODE default mode - 2 SETofROTATION rotations - 2 CARD16 start offset in LISTofCRTCMODE - 2 CARD16 number of CRTCMODE - - RRAddCrtcMode + 2 c number of CRTCs + 2 o number of outputs + 2 m number of modeinfos + 2 b total bytes in mode names + 10 unused + 4c LISTofCRTC crtcs + 4o LISTofOUTPUT outputs + 40m LISTofMODEINFO modeinfos + b STRING8 mode names + p unused, p=pad(b) +└─── + +┌─── + RRGetOutputInfo 1 CARD8 major opcode 1 0x09 RandR opcode - 2 12+(b+p)/4 length - 4 WINDOW window - 2 CRTC monitor index - 2 unused - 36 CRTCMODE mode - b STRING mode name - p pad(b) - - RRDeleteCrtcMode + 2 3 length + 4 OUTPUT output + 4 TIMESTAMP config-timestamp + ▶ + 1 1 Reply + 1 RRCONFIGSTATUS status + 2 CARD16 sequence number + 4 c+m+(n+p)/4 reply length + 4 TIMESTAMP timestamp + 4 CRTC current connected crtc + 1 CONNECTION connection + 1 unused + 2 c number of CRTCs + 2 m number of modes + 2 n length of name + 8 unused + 4c LISTofCRTC crtcs + 4m LISTofMODE modes + n STRING8 name + p unused, p=pad(n) +└─── + +┌─── + RRCreateMode 1 CARD8 major opcode - 1 0x0a RandR opcode - 2 3+(b+p)/4 length + 1 0x09 RandR opcode + 2 12+(n+p)/4 length 4 WINDOW window - 2 CRTC monitor index - 2 CARD16 mode name length - b STRING mode name - p pad(b) - - RRSetCrtcConfig - + 40 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 0x0b RandR opcode - 2 7 length - 4 WINDOW window + 1 0x09 RandR opcode + 2 2 length + 4 MODE mode +└─── +┌─── + RRAddOutputMode + 1 CARD8 major opcode + 1 0x09 RandR opcode + 2 3 length + 4 OUTPUT output + 4 MODE mode +└─── +┌─── + RRDeleteOutputMode + 1 CARD8 major opcode + 1 0x09 RandR opcode + 2 3 length + 4 OUTPUT output + 4 MODE mode +└─── +┌─── + RRGetCrtcInfo + 1 CARD8 major opcode + 1 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 + 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 + 4 unused + 4o LISTofOUTPUT outputs + 4p LISTofOUTPUT possible outputs +└─── +┌─── + RRSetCrtcConfig + 1 CARD8 major opcode + 1 RandR opcode + 2 7+n length + 4 CRTC crtc 4 TIMESTAMP timestamp 4 TIMESTAMP config timestamp - 2 CRTC monitor index 2 INT16 x 2 INT16 y - 2 MODE mode index + 4 MODE mode 2 ROTATION rotation/reflection - 2 unused - ▶ + 2 n number of outputs + 4n LISTofOUTPUT outputs + ▶ 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 CRTC monitor - 8 unused - + 2 SUBPIXELORDER subpixel order + 18 unused +└─── A.3 Protocol Events - RRScreenChangeNotify - +┌─── + RRScreenChangeNotify 1 Base + 0 code 1 ROTATION new rotation and reflection 2 CARD16 sequence number @@ -1145,24 +1266,41 @@ A.3 Protocol Events 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 - +┌─── + RROutputChangeNotify 1 Base + 1 code 1 0 sub-code 2 CARD16 sequence number 4 TIMESTAMP timestamp 4 TIMESTAMP configuration timestamp - 4 WINDOW root window 4 WINDOW request window - 2 CRTC monitor index - 2 MODE mode ID + 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 +└─── +┌─── + RRCrtcChangeNotify + 1 Base + 2 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 SUBPIXELORDER new subpixel order 2 INT16 x 2 INT16 y + 2 CARD16 width + 2 CARD16 height + 2 unused +└─── Bibliography |