Description: Vertical text does not show up in animations if hardware accelerator is on but skia is off Steps to Reproduce: 1. Open the file attached 2. Hit F5 for screenshow Note: in the "Version" menu, 7.3.5 is not available, so I have chosen 7.3.4.2 release. But the bug occur in both versions, and for sure in earlier versions as well. Actual Results: Only the horizontal text shows up; the vertical text is not shown Expected Results: Both texts should show up Reproducible: Always User Profile Reset: No OpenGL enabled: Yes Additional Info: Version: 7.3.5.2 (x64) / LibreOffice Community Build ID: 184fe81b8c8c30d8b5082578aee2fed2ea847c01 CPU threads: 6; OS: Windows 10.0 Build 22000; UI render: default; VCL: win Locale: ja-JP (ja_JP); UI: en-GB Calc: threaded
Created attachment 181378 [details] A very simple presentation with horizontal and vertical text Just open the file and hit F5. To reproduce the bug you should have skia inactive but hardware accelerator active. If I turn off hardware accelerator or turn on skia, the bug seems gone BUT each animation blanks the screen content and shows it up again, which is fastidious and time consuming.
Bibisected on Win with 7.2 repo to https://git.libreoffice.org/core/commit/5686c1aca40beb9514d40c86b4a3780a8a1334ba vcl: use DWriteTextRenderer for vertical writing.