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Diffstat (limited to 'randrproto.txt')
| -rw-r--r-- | randrproto.txt | 93 |
1 files changed, 88 insertions, 5 deletions
diff --git a/randrproto.txt b/randrproto.txt index f57301d..af78361 100644 --- a/randrproto.txt +++ b/randrproto.txt @@ -1,6 +1,6 @@ The X Resize, Rotate and Reflect Extension - Version 1.5.0 - 2015-03-14 + Version 1.6.0 + 2017-04-01 Jim Gettys Jim.Gettys@hp.com @@ -9,9 +9,7 @@ Hewlett Packard Company Keith Packard - keith.packard@intel.com - Open Source Technology Center - Intel Corporation + keithp@keithp.com 1. Introduction @@ -194,6 +192,16 @@ XID BadMatch when a RandR output disappears. This is to clarify that going forward the X server will not remove outputs dynamically, just mark them as disconnected. +1.6. Introduction to version 1.6 of the extension + +Version 1.6 adds resource leasing. + + • A 'Lease' is a collection of crtcs and outputs which are made + available to a client for direct access via kernel KMS and DRM + APIs. This is done by passing a suitable file descriptor back to + the client which has access to those resources. While leased, those + resources aren't used by the X server. + 1.99 Acknowledgments Our thanks to the contributors to the design found on the xpert mailing @@ -280,6 +288,8 @@ Mode A value for a MODE argument does not name a defined MODE. Provider A value for a PROVIDER argument does not name a defined PROVIDER. +Lease + A value for a LEASE argument does not name a defined LEASE ❧❧❧❧❧❧❧❧❧❧❧ @@ -427,6 +437,12 @@ MONITORINFO { name: ATOM ❧❧❧❧❧❧❧❧❧❧❧ +5.7. Protocol Types added in version 1.6 of the extension + +LEASE { XID } + + ❧❧❧❧❧❧❧❧❧❧❧ + 6. Extension Initialization The name of this extension is "RANDR". @@ -1674,6 +1690,57 @@ dynamic changes in the display environment. window of the screen. ❧❧❧❧❧❧❧❧❧❧❧ + +7.6. Extension Requests added in version 1.6 of the extension. + +┌─── + RRCreateLease + window : WINDOW + lid: LEASE + crtcs: LISTofCRTC + outputs: LISTofOUTPUT + ▶ + nfd: CARD8 + lease: FD +└─── + Errors: IdChoice, Window, Access, Value, CRTC, Output + + Creates a new Lease called 'lid' for the specified crtcs and + outputs from the screen defined by 'window'. Returns a KMS/DRM + file descriptor which can control the leased objects directly + through the kernel. While leased, all resources will appear to + be 'useless' to clients other than the leasing client as + follows: + + • Crtcs are reported as having no 'possible-outputs' and all + other values reported as if the crtc were disabled. + + • Outputs are reported as having no crtcs they can be + connected to, no clones they can share a crtc with, will + report a connection status of Disconnected, and will show + the current crtc as if it were disabled. + + The lease remains in effect until the file descriptor is + closed, even if the client holding the lease disconnects from + the X server. + + Returns an Access error if any of the named resources are + already leased to another client. + +┌─── + RRFreeLease + lid: LEASE + terminate: BOOL +└─── + Errors: Lease + + Frees the reference to the lease 'lid'. If 'terminate' is + true, then the lease is terminated and all leased resources + returned to the X server. If 'terminate' is false, then the + lease remains in effect, but the X server no longer has a name + for it. + + ❧❧❧❧❧❧❧❧❧❧❧ 8. Extension Events Clients MAY select for ConfigureNotify on the root window to be @@ -1855,6 +1922,21 @@ factors, such as re-cabling a monitor, etc. created or destroyed. Querying the list of available resources with RRGetScreenResources and RRGetProviders will return the new set. +8.3 Events added in version 1.6 of the RandR extension + +┌─── + RRLeaseNotify: + timestamp : TIMESTAMP time screen was reconfigured + window : WINDOW window requesting notification + lease : LEASE lease + created : BOOL created/destroyed indicator +└─── + + This event is generated whenever a lease has been created or + destroyed and is sent to requesting clients. 'timestamp' + indicates when the change happend. 'window' is the window + selecting for this event. + ❧❧❧❧❧❧❧❧❧❧❧ 9. Properties @@ -2286,6 +2368,7 @@ A.1 Common Types 0x0010 ProviderChangeNotifyMask Added in version 1.4 0x0020 ProviderPropertyNotifyMask Added in version 1.4 0x0040 ResourceChangeNotifyMask Added in version 1.4 + 0x0080 LeaseNotifyMask Added in version 1.6 └─── Event select mask for RRSelectInput |