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The code in glsl_to_nir is entirely dead, as we translate from GLSL to NIR at link time, when there isn't a _mesa_glsl_parse_state to pass, so every caller passes NULL. glsl_to_nir seems like the wrong place to try and create the shader compiler options structure anyway - tgsi_to_nir, prog_to_nir, and other translators all would have to duplicate that code. The driver should set this up once with whatever settings it wants, and pass it in. Eric also added a NirOptions field to ctx->Const.ShaderCompilerOptions[] and left a comment saying: "The memory for the options is expected to be kept in a single static copy by the driver." This suggests the plan was to do exactly that. That pointer was not marked const, however, and the dead code used a mix of static structures and ralloced ones. This patch deletes the dead code in glsl_to_nir, instead making it take the shader compiler options as a mandatory argument. It creates an (empty) options struct in the i965 driver, and makes NirOptions point to that. It marks the pointer const so that we can actually do so without generating "discards const qualifier" compiler warnings. Signed-off-by: Kenneth Graunke <kenneth@whitecape.org> Acked-by: Jason Ekstrand <jason.ekstrand@intel.com> Reviewed-by: Eric Anholt <eric@anholt.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 osmesa to build classic osmesa driver; 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. - 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.