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MESA_FORMAT_XRGB8888 is equivalent to MESA_FORMAT_ARGB8888 in terms of storage on the device, so okay to use this optimized copy routine. This series builds on work from Frank Henigman to optimize the process of uploading a texture to the GPU. This series adds support for MESA_XRGB_8888 and full miptrees where were found to be common activities in the Smokin' Guns game. The issue was found while profiling the app but that part is not benchmarked. Smokin-Guns uses mipmap textures with an internal format of GL_RGB (MESA_XRGB_8888 in the driver). These changes need a performance tool to run against to show how they improve execution performance for specific texture formats. Using this benchmark I've measured the following improvement on my Ivybridge Intel(R) Xeon(R) CPU E3-1225 V2 @ 3.20GHz. 1024x1024 texture size internal-format Before (MB/sec) XRGB (MB/sec) GL_RGBA 628.15 627.15 GL_RGB 265.95 456.35 512x512 texture size internal-format Before (MB/sec) XRGB (MB/sec) GL_RGBA 600.23 597.00 GL_RGB 255.50 440.62 256x256 texture size internal-format Before (MB/sec) XRGB (MB/sec) GL_RGBA 489.08 487.80 GL_RGB 229.03 376.63 Benchmark has been sent to mesa-dev list: teximage Signed-off-by: Courtney Goeltzenleuchter <courtney@LunarG.com> Reviewed-by: Chad Versace <chad.versace@linux.intel.com> |
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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. 1) install python 2.7 2) install scons (latest) 3) install mingw, flex, and bison 4) install libxml2 from here: http://www.lfd.uci.edu/~gohlke/pythonlibs get libxml2-python-2.9.1.win-amd64-py2.7.exe 5) install pywin32 from here: http://www.lfd.uci.edu/~gohlke/pythonlibs get pywin32-218.4.win-amd64-py2.7.exe 6) install git 7) download mesa from git see http://www.mesa3d.org/repository.html 8) 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.