https://bugs.documentfoundation.org/show_bug.cgi?id=160193
Bug ID: 160193
Summary: Text visual artefact during swipe animation
Product: LibreOffice
Version: 7.0.0.3 release
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: UNCONFIRMED
Keywords: bibisected, bisected, regression
Severity: normal
Priority: medium
Component: graphics stack
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Blocks: 109362
Created attachment 193099
--> https://bugs.documentfoundation.org/attachment.cgi?id=193099&action=edit
sample ODP
Steps:
1. Open attachment
2. Start presentation (F5)
3. Go through slides
Result: some slight visual artefact during swipe animation on both slides,
where text is visible before it should, and previous slide's artefact is
carried over to the second slide.
Also reproduced when playing animation on canvas.
Using libcairo2 version 1.16.0-5ubuntu2 on Ubuntu 22.04 and:
Version: 24.8.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: f42363c51672a5b3685b0b9b11e932680530dce3
CPU threads: 8; OS: Linux 6.5; UI render: default; VCL: gtk3
Locale: en-AU (en_AU.UTF-8); UI: en-US
Calc: CL threaded
Same with gen VCL plugin.
No issue with kf5 (cairo+xcb) nor (cairo+wayland)
Unticking "Use hardware acceleration" in "Tools > Options > View" solves the
issue.
Bibisected with linux-64-7.0 repository to first bad build
[302a4ceaabac898c580c71659800d767595cd0c8] which points to:
commit 770892a387361067d23ab08ed38690c50b8b9395
author Caolán McNamara Sat May 23 20:21:59 2020 +0100
committer Caolán McNamara Sun May 24 20:20:54 2020 +0200
platforms using the cairo canvas use cairo for text rendering already
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/94736
Caolán, can you please have a look?
Referenced Bugs:
https://bugs.documentfoundation.org/show_bug.cgi?id=109362
[Bug 109362] [META] Custom/object animation bugs and enhancements
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