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Due to a gaffe on my part, we were re-emitting all binding table entries on every single draw call. The push_constant_packets atom listens to BRW_NEW_DRAW_CALL, but skips emitting 3DSTATE_CONSTANT_XS for each stage unless stage_state->push_constants_dirty is true. However, it flagged BRW_NEW_SURFACES unconditionally at the end, by mistake. Instead, it should only flag it if we actually emit 3DSTATE_CONSTANT_XS for a stage. We can move it a few lines up, inside the loop - the early continues will skip over it if push constants aren't dirty for a stage. With INTEL_NO_HW=1 set, improves performance of GFXBench5 gl_driver_2 on Apollolake at 1280x720 by 1.01122% +/- 0.470723% (n=35). Reviewed-by: Rafael Antognolli <rafael.antognolli@intel.com>
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.