Bruce Cherniak
ea2ee9cd19
This patch fixes piglit tex3d-maxsize by correcting 4 things: The total_size calculation was using 32-bit math, therefore a >4GB allocation request overflowed and was not returning false (unsupported). Changed AlignedMalloc arguments from "unsigned int" to size_t, to handle >4GB allocations. Added error checking on texture allocations to fail gracefully. Finally, temporarily decreased supported max texture size from 4GB to 2GB. The gallivm texture-sampler needs some additional work to correctly handle larger than 2GB textures (offsets to LLVMBuildGEP are signed). I'm working on a follow-on patch to allow up to 4GB textures, as this is useful in HPC visualization applications. Fixes piglit tex3d-maxsize. v2: Updated patch description to clarify ">4GB". Reviewed-By: George Kyriazis <george.kyriazis@intel.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 https://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.