https://bugs.documentfoundation.org/show_bug.cgi?id=116213
Bug ID: 116213
Summary: OS X and OpenGL bitmap scanline sizes are not 32-bit
aligned
Product: LibreOffice
Version: Inherited From OOo
Hardware: All
OS: Mac OS X (All)
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: graphics stack
Assignee: [email protected]
Reporter: [email protected]
Description:
Windows bitmap must be 32-bit aligned (cf
http://www.fileformat.info/format/bmp/egff.htm - “Pixels are packed into bytes
and arranged as scan lines. Each scan line must end on a 4-byte boundary, so
one, two, or three bytes of padding may follow each scan line.”).
Our OpenGL and OS X implementations don’t honour this (see
https://opengrok.libreoffice.org/xref/core/vcl/opengl/salbmp.cxx#772 and
https://opengrok.libreoffice.org/xref/core/vcl/quartz/salbmp.cxx#317).
In fact, our test code notes this also - see
https://opengrok.libreoffice.org/xref/core/vcl/qa/cppunit/BitmapTest.cxx#334
I’m logging this as a bug I’ll need to fix when I get back from holidays.
Steps to Reproduce:
n/a
Actual Results:
n/a
Expected Results:
n/a
Reproducible: Always
User Profile Reset: No
Additional Info:
User-Agent: Mozilla/5.0 (iPad; CPU OS 11_2_6 like Mac OS X)
AppleWebKit/604.1.34 (KHTML, like Gecko) CriOS/64.0.3282.112 Mobile/15D100
Safari/604.1
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