https://bugs.documentfoundation.org/show_bug.cgi?id=146024

V Stuart Foote <[email protected]> changed:

           What    |Removed                     |Added
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                 CC|                            |[email protected]

--- Comment #1 from V Stuart Foote <[email protected]> ---
Can not confirm on this single page writer document with a 794px x 1123px
radial gradient PNG image anchored to paragraph---neither with Zoom in/out nor
on pan around page (scroll bar l, r, u, d arrow, or by grabbing the thumb
slider); while Writer 'Smooth scroll' enabled or disabled has no noticeable
"slowness" or lag on this Windows 10 system. Adjusted image anchor to page and
no different. Also recreated document size but used image as imported bitmap
background. No issue.

Skia/Vulkan is very zippy
Skia/Raster is smooth
CPU w/HA is a bit slower
CPU GDI+ only about the same

But no apparent issues with speed of rendering with the Skia libs.

The 'Smooth scrool' buffering does have some visual glitches as the scroll (v
or  h advances) but think that is bug 123181

=-testing-=

Version: 7.2.3.2 (x64) / LibreOffice Community
Build ID: d166454616c1632304285822f9c83ce2e660fd92
CPU threads: 8; OS: Windows 10.0 Build 19044; UI render: Skia/Raster; VCL: win
Locale: en-US (en_US); UI: en-US
Calc: threaded

with this display/GPU info from MSinfo32.exe

Name    Intel(R) Iris(R) Plus Graphics
PNP Device ID   PCI\VEN_8086&DEV_8A52&SUBSYS_C189144D&REV_07\3&11583659&0&10
Adapter Type    Intel(R) Iris(R) Graphics Family, Intel Corporation compatible
Adapter Description     Intel(R) Iris(R) Plus Graphics
Adapter RAM     1.00 GB (1,073,741,824 bytes)
Installed Drivers      
C:\WINDOWS\System32\DriverStore\FileRepository\iigd_dch.inf_amd64_6c531da99dfd5830\igdumdim64.dll,C:\WINDOWS\System32\DriverStore\FileRepository\iigd_dch.inf_amd64_6c531da99dfd5830\igd10iumd64.dll,C:\WINDOWS\System32\DriverStore\FileRepository\iigd_dch.inf_amd64_6c531da99dfd5830\igd10iumd64.dll,C:\WINDOWS\System32\DriverStore\FileRepository\iigd_dch.inf_amd64_6c531da99dfd5830\igd12umd64.dll
Driver Version  30.0.101.1069
INF File        oem7.inf (iICLD_w10_DS_N section)
Color Planes    Not Available
Color Table Entries     4294967296
Resolution      1920 x 1080 x 60 hertz


or when in Skia / Vulkan mode

RenderMethod: vulkan
Vendor: 0x8086
Device: 0x8a52
API: 1.2.195
Driver: 0.404.1069
DeviceType: integrated
DeviceName: Intel(R) Iris(R) Plus Graphics
Denylisted: no

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