http://bugs.freedesktop.org/show_bug.cgi?id=24585
Summary: radeon texture size checks with bit 11
Product: DRI
Version: unspecified
Platform: Other
OS/Version: All
Status: NEW
Severity: normal
Priority: medium
Component: DRM/Radeon
AssignedTo: [email protected]
ReportedBy: [email protected]
Hi,
I have a problem with my r520 accepting mipmapped textures huger than 2048 with
the current in kernel texture size check code.
The problem boils down to the order when the bit11 of the texture size is or'ed
to the original width. In the end each mipmap level has the same width or
height because of that 11 bit is ored to the scaled down lod with and thus
blows up the size again to the full size or more due to the power of two
rounding afterwards.
The attached patch changes this order so that the texture sizes are computed
correct. Also the on error the yet missing inputs to the size computation are
printed which helped me to find out where it really breaks.
Please apply or fix in a more appropriate way.
Thanks
Mathias
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