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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - alloc_layout_array tx * ty assertion failure when making pbuffer current"
href="https://bugs.freedesktop.org/show_bug.cgi?id=61012#c6">Comment # 6</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - alloc_layout_array tx * ty assertion failure when making pbuffer current"
href="https://bugs.freedesktop.org/show_bug.cgi?id=61012">bug 61012</a>
from <span class="vcard"><a class="email" href="mailto:brianp@vmware.com" title="Brian Paul <brianp@vmware.com>"> <span class="fn">Brian Paul</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=61012#c5">comment #5</a>)
<span class="quote">> Created <span class=""><a href="attachment.cgi?id=75068" name="attach_75068" title="another attempt to fix pbuffer initialization">attachment 75068</a> <a href="attachment.cgi?id=75068&action=edit" title="another attempt to fix pbuffer initialization">[details]</a></span> <a href='page.cgi?id=splinter.html&bug=61012&attachment=75068'>[review]</a> [review]
> another attempt to fix pbuffer initialization
>
> Hmm is it legal to use XGetGeometry() with pbuffers?</span >
Not normally, but in the glx/xlib code we create a dummy pixmap for each
pbuffer so that we have an XID that we can pass around.
<span class="quote">> I think something like this patch would be better.</span >
That would be fine too. It's what I first tried.
<span class="quote">> Not sure if guarding against zero-sized buffers in drivers is needed. Might
> be but there are other instances where we hack up such windows to have
> width/height of 1 for that reason so we don't have to do it in drivers.</span >
I hacked up a test for a 0x0 surface. Softpipe worked but the llvmpipe
assertion failed. I guess I'd consider the llvmpipe change to be a defensive
coding check. One less way for llvmpipe to fail is good thing.</pre>
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