[Bug 30948] New: Regression in r600 driver: due to commit 603741a86df0e43c0b52e8c202a35c7fe2fc1d9c some texture broken

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=30948

           Summary: Regression in r600 driver: due to commit
                    603741a86df0e43c0b52e8c202a35c7fe2fc1d9c some texture
                    broken
           Product: Mesa
           Version: git
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/R600
        AssignedTo: dri-devel at lists.freedesktop.org
        ReportedBy: crazy-ivanovic at gmx.net


Created an attachment (id=39500)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=39500)
screenshot of breakage due to regression

http://cgit.freedesktop.org/mesa/mesa/commit/?id=603741a86df0e43c0b52e8c202a35c7fe2fc1d9c
does break displaying the wesnoth-gl branch when using the r600 classic driver.
Things are displayed nicely using r600 gallium. It looks like some completely
wrong textures are displayed (so the "wrong stuff" displayed appears to be
something from a wrong region of the grahpics ram or something like this).
Wesnoth is using FBOs (regarding what I heard from alink) to display stuff.

I attached a screenshot of what is shown as well as what should be shown.

To reproduce this:
svn co -r47099 svn://svn.gna.org/svn/wesnoth/branches/ogl wesnoth-ogl
cd wesnoth-ogl
cmake .
make
./wesnoth .

I explicitly mention a revision in case that all the menu setup stuff is
changed over the next days. In general compiling wesnoth can also be done using
scons or autotool and always does require the dependencies listed at
http://wiki.wesnoth.org/CompilingWesnoth . The resulting svn checkout needs
about 1GB on the harddrive and compiling will take some time (usually longer
than compiling a kernel).

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