https://bugs.freedesktop.org/show_bug.cgi?id=103412
Bug ID: 103412
Summary: gallium/wgl: Another fix to context creation without
prior SetPixelFormat()
Product: Mesa
Version: 17.2
Hardware: Other
OS: Windows (All)
Status: NEW
Severity: normal
Priority: medium
Component: Other
Assignee: mesa-dev@lists.freedesktop.org
Reporter: frank.rich...@gmail.com
QA Contact: mesa-dev@lists.freedesktop.org
Created attachment 135000
--> https://bugs.freedesktop.org/attachment.cgi?id=135000&action=edit
patch: Don't blindly use GetPixelFormat() return value
This is a follow-up to bug 101326.
The patch for that bug blindly took the pixel format index returned by
GetPixelFormat(). However, what's the guarantee that this pixel format index is
actually sensible in the Mesa context, or even a valid index?
Well, none actually. (It's also not an entirely theoretic problem. I received a
crash report where an invalid index is indicated, though I couldn't reproduce
the exact scenario.)
The attached patch fixes the blind usage of the index by computing the proper
Mesa pixel format index from the pixel format description.
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