mirror of https://gitlab.freedesktop.org/mesa/mesa
Currently only one ir assignment is removed for each var in a single dead code optimisation pass. This means if a var has more than one assignment, then it requires all the glsl optimisations to be run again for each additional assignment to be removed. Another pass is also required to remove the variable itself. With this change all assignments and the variable are removed in a single pass. Some of the arrays of arrays conformance tests that were looping through 8 dimensions ended up with a var with hundreds of assignments. This change helps ES31-CTS.arrays_of_arrays.InteractionFunctionCalls1 go from around 3 min 20 sec -> 2 min ES31-CTS.arrays_of_arrays.InteractionFunctionCalls2 went from around 9 min 20 sec to 7 min 30 sec I had difficulty getting the public shader-db to give a consistent result with or without this change but the results seemed unchanged at between 15-20 seconds. Thomas Helland measured change with shader-db on his machine from approx 117 secs to 112 secs. V3: Simplify freeing of list as suggested by Ian, and spelling fixes. V2: Add assert to be sure references are counted before assignments. Reviewed-by: Ian Romanick <ian.d.romanick@intel.com> Tested-By: Thomas Helland <thomashelland90@gmail.com> Tested-by: Ian Romanick <ian.d.romanick@intel.com> |
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docs/README.WIN32
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.