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We need information about push constants in a few places for the GL driver, and another couple places for the vulkan driver. When we add support for uploading both a common (cross-thread) set of push constants, combined with the previous per-thread push constant data, things are going to get even more complicated. To simplify things, we add push constant info into the cs prog_data struct. The cross-thread constant support is added as of Haswell. To support it we need to make sure all push constants with uniform values are added to earlier registers. The register that varies per thread and holds the thread invocation's unique local ID needs to be added last. For now we add the code that would calculate cross-thread constatn information for hsw+, but we force it (cross_thread_supported) off until the other parts of the driver support it. v4: * Support older local ID push constant layout as well. (Jason) Cc: "12.0" <mesa-stable@lists.freedesktop.org> Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Jason Ekstrand <jason@jlekstrand.net> |
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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 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.