https://bugs.documentfoundation.org/show_bug.cgi?id=168139
Bug ID: 168139
Summary: LibreOffice crashe asserts with Skia/Vulkan on X11
(gen) VCL backend
Product: LibreOffice
Version: 26.2.0.0 alpha0+ master
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: graphics stack
Assignee: [email protected]
Reporter: [email protected]
Description:
LibreOffice X11 (gen) VCL backend is a good platform for testing.
Unfortunately, it crashes with Skia enabled. This happens both for Skia/Raster:
tdf#168138 and Skia/Vulkan (this report).
Steps to Reproduce:
1. Build LibreOffice core on Linux
2. Try Vulkan/Vulkan on X11:
export SAL_USE_VCLPLUGIN=gen
export SAL_SKIA=vulkan
instdir/program/soffice --writer
Actual Results:
Upon opening a new Writer, etc. window, LibreOffice crashes immediately.
Expected Results:
No crash should happen
Reproducible: Always
User Profile Reset: No
Additional Info:
LibreOffice with Skia/Vulkan itself works fine with LibreOffice 25.8 stable:
Version: 25.8.0.4 (X86_64)
Build ID: 48f00303701489684e67c38c28aff00cd5929e67
CPU threads: 12; OS: Linux 6.2; UI render: Skia/Vulkan; VCL: x11
Locale: en-US (en_US.UTF-8); UI: en-US
Calc: threaded
But with the latest LO 26.2 dev master, it faces with crash assert in a debug
build:
$ instdir/program/soffice --version
LibreOfficeDev 26.2.0.0.alpha0 f6411560817dd9e2c07564eef100dcb8f995804f
$ instdir/program/soffice --writer
...
soffice.bin: vcl/skia/x11/salvd.cxx:83: virtual bool
X11SkiaSalVirtualDevice::SetSize(tools::Long, tools::Long, bool): Assertion
`!bAlphaMaskTransparent && "TODO"' failed.
By disabling the assertion in vcl/skia/x11/salvd.cxx:83, LibreOffice works
normally.
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