Dave Airlie
a08c4ebbe8
The last version of this broke clipping, and I had to spend sometime getting this working properly. I had to introduce a third pass to count the clip/cull totals, all due to one messy corner case. We have a piglit test tes-input-gl_ClipDistance.shader_test that doesn't actually output the clip distances, it just passes them like a varying from TCS->TES, the older lowering pass worked but to lower clip/cull we need to know the total number of clip+culls used to defined the new variable correctly, and to offset culls properly. This adds an extra pass that works out the sizes for clip/cull, then lowers gl_ClipDistance then gl_CullDistance into the new gl_ClipDistanceMESA. The pass checks using the fixed array sizes code if they array has been referenced, or is actually never used, and ignores it in the latter case. Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Dave Airlie <airlied@redhat.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.