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Both inst->force_uncompressed and inst->force_sechalf mean that the generated instruction should be uncompressed and have an execution size of 8. We don't require the visitor to set both flags - setting inst->force_sechalf by itself is supposed to be enough. On Gen4-7, guess_execution_size() demoted instructions to 8-wide based on the default compression state. On Gen8+, we instead set a default execution size, which worked great...except that we forgot to check inst->force_sechalf when deciding whether to use 8 or 16. Signed-off-by: Kenneth Graunke <kenneth@whitecape.org> Cc: mesa-stable@lists.freedesktop.org (cherry picked from commit 1c62126612752f6eedb66f705cc3ff1e11beea5d) |
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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 osmesa mesagdi to build classic mesa Windows GDI drivers; or 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.