Rob Clark
9a9f2a893b
Group inputs/outputs, in addition to fanin/fanout, as they must also exist in sequential scalar registers. This lets us simplify RA by working in terms of neighbor groups. NOTE: has the slight problem that it can't optimize out mov's for things like: MOV OUT[n], IN[m] To avoid this, instead of trying to figure out what mov's we can eliminate, we first remove all mov's prior to grouping, and then re-insert mov's as needed while grouping inputs/outputs/fanins. Eventually we'd prefer the frontend to not insert extra mov's in the first place (so we don't have to bother removing them). This is the plan for an eventual NIR based frontend, so separate out the instr grouping (which will still be needed for NIR frontend) from the mov elimination (which won't). Signed-off-by: Rob Clark <robclark@freedesktop.org>
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.