[Bug 102581] 3D texture mipmapping broken

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Bug ID 102581
Summary 3D texture mipmapping broken
Product Mesa
Version 17.1
Hardware x86-64 (AMD64)
OS Linux (All)
Status NEW
Severity normal
Priority medium
Component Drivers/Gallium/radeonsi
Assignee dri-devel@lists.freedesktop.org
Reporter mail@felix-potthast.de
QA Contact dri-devel@lists.freedesktop.org

Created attachment 134041 [details]
Screenshot comparison

When trying to display 
https://www.shadertoy.com/view/4llcR4
i get artifacts near horizon due to mipmapping (artifacts are absent with
mipmapping disabled).
It works as expected with the proprietary driver (under Windows) on the same
machine.
See attached image for Screenshot comparison.

So either mipmap generation or display seems to be erroneous for 3D textures.

My card is AMD Radeon HD 7870.


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