dc657a8201
In a5d7e144ea, Connor generalized the
exec_size halving code to handle more cases. As part of this, he made
it not halve anything if the region accessed falls completely in a
single register.
Unfortunately, it started producing some invalid regions:
-add(16) g6<1>F g10<8,8,1>UW -g1<0,1,0>F { align1 compr };
-add(16) g8<1>F g12<8,8,1>UW -g1.1<0,1,0>F { align1 compr };
+add(16) g6<1>F g10<16,16,1>UW -g1<0,1,0>F { align1 compr };
+add(16) g8<1>F g12<16,16,1>UW -g1.1<0,1,0>F { align1 compr };
Here, the UW source region completely fits within a register. However,
we have to use instruction compression because the destination region
spans two registers. <16,16,1> is invalid because it's compressed.
To handle this, skip the "everything fits in one register" case and
fall through to the exec_size halving case when compressed.
Fixes hundreds of Piglit regressions on GM965.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=95370
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
File: docs/README.WIN32 Last updated: 21 June 2013 Quick Start ----- ----- Windows drivers are build with SCons. Makefiles or Visual Studio projects are no longer shipped or supported. Run scons libgl-gdi to build gallium based GDI driver. This will work both with MSVS or Mingw. Windows Drivers ------- ------- At this time, only the gallium GDI driver is known to work. Source code also exists in the tree for other drivers in src/mesa/drivers/windows, but the status of this code is unknown. Recipe ------ Building on windows requires several open-source packages. These are steps that work as of this writing. - install python 2.7 - install scons (latest) - install mingw, flex, and bison - install pywin32 from here: http://www.lfd.uci.edu/~gohlke/pythonlibs get pywin32-218.4.win-amd64-py2.7.exe - install git - download mesa from git see http://www.mesa3d.org/repository.html - run scons General ------- After building, you can copy the above DLL files to a place in your PATH such as $SystemRoot/SYSTEM32. If you don't like putting things in a system directory, place them in the same directory as the executable(s). Be careful about accidentially overwriting files of the same name in the SYSTEM32 directory. The DLL files are built so that the external entry points use the stdcall calling convention. Static LIB files are not built. The LIB files that are built with are the linker import files associated with the DLL files. The si-glu sources are used to build the GLU libs. This was done mainly to get the better tessellator code. If you have a Windows-related build problem or question, please post to the mesa-dev or mesa-users list.