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d3d10 requires that cube corners are filtered with accurate weights (that is, the weight of the non-existing corner texel should be evenly distributed to the other 3 texels). OpenGL does not require this (but recommends it). This requires us to use different filtering code, since we need per-texel weights which our 2d lerp doesn't (and can't) do. And of course the (now per element) weights need to be adjusted too for it to work. Invoke the new filtering code whenever there's an edge to keep things simpler, as it will work for edges too not just corners but of course it's only needed with corners. More ugly code for not much gain but at least a hacked up cubemap demo shows very nice corners now... Not sure yet if and how this should be configurable... v2: incorporate feedback from Jose, only use special corner filtering code when there's a corner not when there's only an edge (as corner filtering code is slower, though a perf difference was only measureable when always forcing edge code). Plus some minor style fixes. Reviewed-by: Jose Fonseca <jfonseca@vmware.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 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.