[GUACAMOLE-177] Update layer properties only on flush

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Done
• Fix Version/s: 0.9.12-incubating
• Component/s: guacamole-common-js
• Assignee: Mike Jumper
• Reporter: Mike Jumper
• Created: 25/Jan/17 00:08
• Updated: 26/Jan/17 05:40
• Resolved: 26/Jan/17 05:40

Description

The Guacamole client and display currently queue up all drawing operations such that they are committed only when a frame is flushed ... except for changes which update layer properties like location and opacity.

For the sake of consistency and performance, any change which affects the contents of the display should be deferred until the display state is actually flushed due to a "sync" instruction. Doing otherwise leads to incomplete display state (partial frames) and slower performance (unnecessary operations, excess computation between frames).

Issue Links

• is depended upon by: GUACAMOLE-168 Add support for X.Org