[Libreoffice-bugs] [Bug 113645] Scrolling using the vertical scroll bar has become more choppy with OpenGL enabled

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=113645

--- Comment #1 from Telesto <telesto at surfxs.nl> ---
Created attachment 137519
  --> https://bugs.documentfoundation.org/attachment.cgi?id=137519&action=edit
Bibisect log

Bibisected to:
author  Tomaž Vajngerl <tomaz.vajngerl at collabora.co.uk> 2016-05-31 03:26:04
(GMT)
committer       Tomaž Vajngerl <tomaz.vajngerl at collabora.co.uk> 2016-06-08
02:39:22 (GMT)
commit  18260a0d9a381a105ffb032ee8f1050c77062102 (patch)
tree    8ebdd55593e4d7efe718ee8a8282d37cc0776c4e
parent  bb157523310eb237dc16818f24df58d110242367 (diff)
opengl: deferred texture drawing in RenderList, add drawAlphaRect
Drawing accumulated textures (in Accumulatedtextures) is independent
of drawing with render list which causes problems with rendering
order when render list and accumulated textures are flushed. To
solve this we need to combine both so we can check for overlapped
drawing.

Previously drawRect was using RenderList batch drawing but not
drawAlphaRect which is essentially the same as drawRect but
additionally supports alpha value. This adds support to draw
alpha rectangles to RenderList and converts drawAlphaRect.

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