[Xpert]screen damage region extension

Hi, Here is a proof-of-concept rough cut at an extension to track damage regions for the screen (notify clients about pixels that have changed). Been thinking about this for a while in order to support desktop pagers with thumbnailing, but was finally inspired to write code by the krfb

Re: [Xpert]screen damage region extension

Havoc Pennington wrote: Hi, Here is a proof-of-concept rough cut at an extension to track damage regions for the screen (notify clients about pixels that have changed). Been thinking about this for a while in order to support desktop pagers with thumbnailing, but was finally inspired to write