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Shader stats from VERDE: Default scheduler: Totals: SGPRS: 491272 -> 488672 (-0.53 %) VGPRS: 289980 -> 311093 (7.28 %) Code Size: 11091656 -> 11219948 (1.16 %) bytes LDS: 97 -> 97 (0.00 %) blocks Scratch: 1732608 -> 2246656 (29.67 %) bytes per wave Max Waves: 78063 -> 77352 (-0.91 %) Wait states: 0 -> 0 (0.00 %) Looking at some of the worst regressions, I get: - The VGPR increase seems to be caused by the fact that if PS has used less than 16 VGPRs, now it will always use 16 VGPRs and sometimes even 20. However, the wave count remains at 10 if VGPRs <= 24, so no harm there. - The scratch increase seems to be caused by SGPR spilling. The unnecessary SGPR spilling has been an ongoing issue with the compiler and it's completely fixable by rematerializing s_loads or reordering instructions. SI scheduler: Totals: SGPRS: 374848 -> 374576 (-0.07 %) VGPRS: 284456 -> 307515 (8.11 %) Code Size: 11433068 -> 11535452 (0.90 %) bytes LDS: 97 -> 97 (0.00 %) blocks Scratch: 509952 -> 522240 (2.41 %) bytes per wave Max Waves: 79456 -> 78217 (-1.56 %) Wait states: 0 -> 0 (0.00 %) VGPRs - same story as before. The SI scheduler doesn't spill SGPRs so much and generally spills way less than the default scheduler. (522240 spills vs 2246656 spills) Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.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 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.