Francisco Jerez
ee977183dc
This extends the SIMD lowering pass to enforce the hardware limitation that no directly-addressed source may read more than 2 physical GRFs. One can easily go over this limit when doing 64-bit arithmetic (e.g. FP64 or extended-precision integer MULs) or SIMD32, so it's nice to be able to just emit an instruction of the intended execution size from the visitor and let the lowering pass deal with this restriction transparently. Some hardware arithmetic instructions are not handled here, including all instructions that use the accumulator implicitly (which the SIMD lowering pass deliberately doesn't handle), instructions with non-per-channel sources (e.g. LINE or PLANE) and SEND-like instructions, which need special handling most likely as virtual opcodes. Reviewed-by: Connor Abbott <connor.w.abbott@intel.com> Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
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.