[Libreoffice-bugs] [Bug 127260] Saving files containing XOR-mode drawing is extremely slow

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=127260

Luboš Luňák <l.lunak at collabora.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Saving files containing a   |Saving files containing
                   |gradient is extremely slow  |XOR-mode drawing is
                   |                            |extremely slow
                 CC|                            |l.lunak at collabora.com

--- Comment #8 from Luboš Luňák <l.lunak at collabora.com> ---
This is not about gradients but XOR-mode drawing. Our Cairo code applies the
XOR operation after each drawing call, and the document results in a large
number of polygon drawing in XOR mode.

For Skia I've handled this by delaying XOR updates until the XOR mode is left
(https://git.libreoffice.org/core/commit/3974dfee554bda82fdfb89cd4a2ea8926eb31243).

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