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January 5, 2026 14:11
Only redraw the part of the frame that changed. Instead of repainting the whole buffer. This improve performances, particularly when moving the mouse cursor. To be really efficient, it needs to send the damage rectangle to the drm device, but this will be done in a later patch.
The initial damage support doesn't work for glyphes that overflow to the next character. Move overflow handling to each text renderer, as the generic algorithm can't work with damage. Signed-off-by: Jocelyn Falempe <[email protected]>
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bbulk: Add damage support
Only redraw the part of the frame that changed.
Instead of repainting the whole buffer.
This improve performances, particularly when moving the mouse cursor.
To be really efficient, it needs to send the damage rectangle to the
drm device, but this will be done in a later patch.