| Priority | medium |
|---|---|
| Bug ID | 76919 |
| Assignee | dri-devel@lists.freedesktop.org |
| Summary | Random junk at the bottom of non-multiple-of-4 compressed textures (original or mipmapped) |
| Severity | normal |
| Classification | Unclassified |
| OS | All |
| Reporter | bugspam@moreofthesa.me.uk |
| Hardware | Other |
| Status | NEW |
| Version | unspecified |
| Component | Drivers/Gallium/r600 |
| Product | Mesa |
Created attachment 96745 [details] Example image (with mipmaps), the height of which triggers the problem There seems to be a problem with some compressed textures. When the height of the image (more specifically, of the mipmap level used) is not a multiple of 4, it appears that the bottom part of the image – as rendered – contains random junk, apparently set at image load time. The example image will show the problem at its original size. I've also played with its height (initially 570px): increasing it to a multiple of 4 would remove the problem if it's rendered using the full-size version, but since when reduced by one level the height is again not a multiple of 4, the problem re-appears. Setting the full-size height to 576px moves the problem down further. (We're using http://crunch.googlecode.com/svn/trunk/ for image (de)compression.)
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