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UNIFORM_PULL_CONSTANT_LOAD is used to load a contiguous vec4 starting at a constant offset that is 16-byte aligned. If we need to access an unaligned offset we emit a load with an aligned offset and use the remaining constant offset to select the component into the vec4 result that we are interested in. This component must be computed in units of the type size, since that is what fs_reg::set_smear expects. This patch does this change in the two places where we use this message: In demote_pull_constants when we lower uniform access with constant offset into the pull constant buffer and in UBO loads with constant offset. v2 (Sam): - Fix set_smear() in fs_visitor::lower_constant_loads(), take into account source type instead and remove MAX2 (Curro). - Improve changes to nir_intrinsic_load_ubo case in nir_emit_intrinsic() (Curro). Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com> Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> Reviewed-by: Francisco Jerez <currojerez@riseup.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.