https://bugs.documentfoundation.org/show_bug.cgi?id=78529
--- Comment #36 from Aron Budea <[email protected]> ---
In Windows 7 testing with a fairly recent master build (with enable-symbols),
the situation has improved a lot. I only experienced laggy scrolling with the
following attachments, and the source of that lagginess can be categorized as
follows (based on a bit of simple profiling with Very Sleepy):
1. GdipCreateSolidFill call takes up significant time
-"sample odt file with some images - try to scroll down and up, it's so
slow..."
-"4MB png that does NOT lag on our fast machines"
2. Bitmap::ImplConvertDown and `anonymous namespace'::scalePallete8bit2 calls &
callees eat up a lot of time
-"gif 300dpi grayscale slowsdown writer"
Typing is also slow, except in "sample odt file with some images - try to
scroll down and up, it's so slow...".
No lag with OpenGL rendering.
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