Eric Anholt
292c24ddac
This reduces register pressure in both types of shaders, by reordering the input loads from the var->data.driver_location order to whatever order they appear first in the NIR shader. These instructions aren't reorderable at our QIR scheduling level because the FS takes two in lockstep to do an interpolation, and the VS takes multiple read instructions in a row to get a whole vec4-level attribute read. shader-db impact: total instructions in shared programs: 76666 -> 76590 (-0.10%) instructions in affected programs: 42945 -> 42869 (-0.18%) total max temps in shared programs: 9395 -> 9208 (-1.99%) max temps in affected programs: 2951 -> 2764 (-6.34%) Some programs get their max temps hurt, depending on the order that the load_input intrinsics appear, because we end up being unable to copy propagate an older VPM read into its only use.
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 https://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.