Rob Clark
39b63c18f1
Overall a nice 5-10% gain for most games. And more for things like glmark2 texture benchmark. There are some rough edges. In particular, the hardware seems to only support tiling or component swap. (Ie. from hw PoV, ARGB/ABGR/RGBA/ BGRA are all the same format but with different component swap.) For tiled formats, only ARGB is possible. This isn't a big problem for *sampling* since we also have swizzle state there (and since util_format_compose_swizzles() already takes into account the component order, we didn't use COLOR_SWAP for sampling). But it is a problem if you try to render to a tiled BGRA (for example) surface. The next patch introduces a workaround for blitter, so we can generate tiled textures in ABGR/RGBA/BGRA, but that doesn't help the render- target case. To handle that, I think we'd need to keep track that the tiled format is different from the linear format, which seems like it would get extra fun with sampler views/etc. So for now, disabled by default, enable with FD_MESA_DEBUG=ttile. In practice it works fine for all the games I've tried, but makes piglit grumpy. Signed-off-by: Rob Clark <robdclark@gmail.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.