Bug 134335

Summary:	StartCenter: blurred Thumbnail views with their module/MIME icons when using Skia rendering
Product:	LibreOffice	Reporter:	bugzilla2
Component:	LibreOffice	Assignee:	Not Assigned <libreoffice-bugs>
Status:	RESOLVED WORKSFORME
Severity:	normal	CC:	bugzilla2, vsfoote
Priority:	medium
Version:	7.0.0.0.beta1+
Hardware:	All
OS:	All
Whiteboard:
Crash report or crash signature:		Regression By:
Bug Depends on:
Bug Blocks:	129062
Attachments:	Comparison between SKIA and HW-Acceleration and the effect on Icons side-by-side of fuzzy thumbnail views with Skia rendering compared to default GDI

Description bugzilla2 2020-06-27 11:06:17 UTC

Description:
When Skia is enabled, Icons in the StartCenter in 7.0 are blurred

Steps to Reproduce:
1. Make Sure Skia is enabled in Options
2. Open StartCenter

Actual Results:
Icons in StartCenter are blurred

Expected Results:
Icons in StartCenter should not be blurred


Reproducible: Always


User Profile Reset: Yes



Additional Info:
With classic Hardware-Acceleration enabled instead of Skia, the Icons are not blurred.

Comment 1 bugzilla2 2020-06-27 11:12:40 UTC

Created attachment 162448 [details]
Comparison between SKIA and HW-Acceleration and the effect on Icons

Comment 2 bugzilla2 2020-06-27 11:13:50 UTC

Btw, tested in 7.0 Beta 2

Comment 3 Telesto 2020-06-28 10:26:13 UTC

No issue for me
Version: 7.1.0.0.alpha0+ (x64)
Build ID: 006c65bbd472cb1d7d44e095714e28190b76be0d
CPU threads: 4; OS: Windows 6.3 Build 9600; UI render: Skia/Vulkan; VCL: win
Locale: de-DE (nl_NL); UI: en-US
Calc: CL

Another thing is of course the thumbnail quality. The quality isn't great (when looking at it using the magnifier). But that's more of a nitpick and unrelated to skia

Comment 4 V Stuart Foote 2020-06-28 13:04:08 UTC

Created attachment 162475 [details]
side-by-side of fuzzy thumbnail views with Skia rendering compared to default GDI

Confirmed, on Windows 10 (1909) with Intel HD Graphics 620 GPU
Version: 7.0.0.0.beta2 (x64)
Build ID: 1c213561a365b5666167321de68c9977500c9612
CPU threads: 4; OS: Windows 10.0 Build 18363; UI render: default; VCL: win
Locale: en-US (en_US); UI: en-US
Calc: threaded

Compared to GDI default rendering, with or without Hardware acceleration, but
*only* the MIME icon stamped and the the Thumbnail views themselves are affected--fuzzy with Skia rendering (Vulkan or raster). The module icons of the sidebar are being rendered cleanly.

StartCenter clips attached, fuzzy thumbnail views and MIME icons on left, crisp default GDI rendering on right.

Comment 5 bugzilla2 2020-06-28 14:22:31 UTC

(In reply to Telesto from comment #3)
> No issue for me
> Version: 7.1.0.0.alpha0+ (x64)

I can confirm that the bug does NOT exist in 7.1.0 Alpha.
But its definitely in 7.0 Beta 2.

Is there a more recent Build of 7.0 series to retest if the bug is already gone there too?

Comment 6 bugzilla2 2020-06-28 14:42:38 UTC

I found an updated 7.0 Beta 2 Build and the blurry Thumbnail is no issue there :)

So:

## Blurry ##
Version: 7.0.0.0.beta2 (x64)
Build ID: 1c213561a365b5666167321de68c9977500c9612
CPU-Threads: 12; BS: Windows 10.0 Build 17763; UI-Render: Skia/Vulkan; VCL: 

## No more Blur ##
Version: 7.0.0.0.beta2+ (x64)
Build ID: 9303060ea34bec4a13bfac0562e821b7bd144b65
CPU-Threads: 12; BS: Windows 10.0 Build 17763; UI-Render: Skia/Vulkan; VCL:

I guess this will not be an issue anymore in next Beta or RC build :)

Comment 7 V Stuart Foote 2020-06-28 14:51:42 UTC

Version: 7.1.0.0.alpha0+ (x64)
Build ID: 8ed11b7289533bd609fbcb2adfb7b2982ef6fe22
CPU threads: 4; OS: Windows 10.0 Build 18363; UI render: Skia/Vulkan; VCL: win
Locale: en-US (en_US); UI: en-US
Calc: threaded

Yes, current master/7.1.0alpah0+ have been corrected. Seems it was BP to 7.0.0beta2+ as well.