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<body><span class="vcard"><a class="email" href="mailto:kenneth@whitecape.org" title="Kenneth Graunke <kenneth@whitecape.org>"> <span class="fn">Kenneth Graunke</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [IVB/HSW] ogl-samples: gl-320-texture-integer assertion fails"
href="https://bugs.freedesktop.org/show_bug.cgi?id=76399">bug 76399</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">CC</td>
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<td>anuj.phogat@gmail.com, kenneth@whitecape.org
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<td style="text-align:right;">Summary</td>
<td>[IVB/HSW] ogl-samples: gl-320-texture-integer core dumped
</td>
<td>[IVB/HSW] ogl-samples: gl-320-texture-integer assertion fails
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [IVB/HSW] ogl-samples: gl-320-texture-integer assertion fails"
href="https://bugs.freedesktop.org/show_bug.cgi?id=76399#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [IVB/HSW] ogl-samples: gl-320-texture-integer assertion fails"
href="https://bugs.freedesktop.org/show_bug.cgi?id=76399">bug 76399</a>
from <span class="vcard"><a class="email" href="mailto:kenneth@whitecape.org" title="Kenneth Graunke <kenneth@whitecape.org>"> <span class="fn">Kenneth Graunke</span></a>
</span></b>
<pre>The program calls glGenerateMipmaps on a RGBA8UI texture, which Anuj disallowed
in:
commit c0a78d7d7b51e125d143e693fdfc78b90f2d68cf
Author: Anuj Phogat <<a href="mailto:anuj.phogat@gmail.com">anuj.phogat@gmail.com</a>>
Date: Fri Nov 2 10:47:33 2012 -0700
mesa: Generate invalid operation in glGenerateMipMap for integer textures
Khronos has reached a conclusion and disallowed following texture formats
in
glGenerateMipMap():
(a) ASTC textures
(b) integer internal formats (e.g., RGBA8UI, RG16I)
(c) textures with stencil formats (e.g., STENCIL_INDEX8)
(d) textures with packed depth/stencil formats (e.g, DEPTH24_STENCIL8)
<a href="https://cvs.khronos.org/bugzilla/show_bug.cgi?id=9471">https://cvs.khronos.org/bugzilla/show_bug.cgi?id=9471</a>
Note: This is a candidate for stable branches.
Signed-off-by: Anuj Phogat <<a href="mailto:anuj.phogat@gmail.com">anuj.phogat@gmail.com</a>>
Reviewed-by: Brian Paul <<a href="mailto:brianp@vmware.com">brianp@vmware.com</a>>
After that, the program asserts that there is no error...and dies.
Reading the Khronos bug, it sounds like the final resolution was to do what
Anuj implemented. However, I see zero text to that effect in the OpenGL 4.3 or
even 4.4 specs. It sounds like they instead adopted a "it ought to work"
resolution.
Reverting Anuj's commit fixes this demo. Ian, do you think we should clarify
with Khronos, or how would you like to proceed?</pre>
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