Roland Scheidegger
1e003b44e8
Since disabling denorms in draw_vbo() we require the util_cpu_caps to be initialized there. Hence add another util_cpu_detect() call in draw_create_context() which should ensure this. (There is another call in draw_get_option_use_llvm() which only gets called with x86 (not x86_64) but calling it always there wouldn't help since it most likely wouldn't get called when compiling without llvm, so leave it alone there.) This fixes https://bugs.freedesktop.org/show_bug.cgi?id=66806. (Because util_cpu_caps wasn't initialized when first calling util_fpstate_get() hence it returning zero, but it would later get initialized by rtasm translate code hence when draw call returned it unmasked all exceptions by calling util_fpstate_set(). This was happening only with DRAW_USE_LLVM=0 or not compiling with llvm, otherwise the llvm init code was calling it on time too.) Reviewed-by: Jose Fonseca <jfonseca@vmware.com> Reviewed-by: Zack Rusin <zackr@vmware.com> Tested-by: Vinson Lee <vlee@freedesktop.org>
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.