brotli clipboard compression for text

[totaam]

Issue migrated from trac ticket # 2289

component: core | priority: major | resolution: fixed

2019-05-06 04:40:21: antoine created the issue

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With "quality" levels lower than 10, it compresses fast and much more efficiently than lz4.

[totaam]

2019-05-06 06:24:03: antoine changed status from new to assigned

[totaam]

2019-05-06 06:24:03: antoine commented

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Done in r22626.
Packaging updates:

• r22628 for DEB and RPM
• r22629 for macos
• r22630 for win32

Still TODO (may move to a new ticket):

• only use brotli for text: macos to handle more clipboard formats, converting them on the fly #273
• add HTML5 client support: [https://github.com/google/brotli/tree/master/js]

[totaam]

2019-05-06 14:23:31: antoine changed status from assigned to closed

[totaam]

2019-05-06 14:23:31: antoine set resolution to fixed

[totaam]

2019-05-06 14:23:31: antoine commented

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• r22643 server side brotli compression of clipboard data
• r22644 html5 client support (+r22645 fixup)

Tested using:

XPRA_MIN_CLIPBOARD_COMPRESS_SIZE=1 xpra start -d clipboard

to make it easier to trigger with short plain text cut&paste.

Will follow up in #273.

[totaam]

2019-06-06 05:39:06: antoine commented

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IE fix in r22861.

[totaam]

2019-06-06 07:03:11: antoine commented

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See also #812.

[totaam]

2019-09-07 15:06:56: antoine commented

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Disabled again for IE in r23727. (was hitting runtime issues)