Bug 143084

Summary:	Vertical text layout is corrupted with fallback fonts and the Skia backend enabled
Product:	LibreOffice	Reporter:	Volga <shanshandehongxing>
Component:	LibreOffice	Assignee:	Not Assigned <libreoffice-bugs>
Status:	NEW ---
Severity:	normal	CC:	himajin100000, khaled
Priority:	medium
Version:	7.3.0.0 alpha0+
Hardware:	All
OS:	Windows (All)
Whiteboard:
Crash report or crash signature:		Regression By:
Bug Depends on:
Bug Blocks:	106045, 129062

Description Volga 2021-06-26 15:21:22 UTC

Description:
During the 7.2 release channel, LibreOffice fixed the text alignment for vertical layout for the Skia backend, however, while switching to fallback fonts, some upright glyphs were corrupted.

Steps to Reproduce:
1. Open the attachment 133801 [details]
2. Select all characters in the frame
3. Set the font face as Segoe UI

Actual Results:
All upright glyphs were corrupted if they're rendering with fallback fonts, see attachment 173135 [details].

Expected Results:
All upright glyphs should be correctly placed anyway.


Reproducible: Always


User Profile Reset: No



Additional Info:
Version: 7.3.0.0.alpha0+ (x64) / LibreOffice Community
Build ID: f6b9f671d128c989ce223d61d0d5d43ff1dc9fcb
CPU threads: 4; OS: Windows 10.0 Build 19043; UI render: Skia/Raster; VCL: win
Locale: zh-CN (zh_CN); UI: zh-CN
Calc: threaded

Related bug: bug 142174

Comment 1 Marina Bakutina 2021-07-26 21:00:55 UTC

repro 
Version: 7.3.0.0.alpha0+ (x86) / LibreOffice Community
Build ID: 7458f19a254c799612795a0cddeb0910f71948d4
CPU threads: 4; OS: Windows 10.0 Build 19041; UI render: Skia/Raster; VCL: win
Locale: en-US (en_US); UI: en-US
Calc: threaded

Comment 2 Volga 2021-07-27 03:38:49 UTC

I suggest LibreOffice should build own font fallback machanism, so LibreOffice could correctly handle fallback on any platform or rendering backend.