Martin Peres
5b61cb1236
Without this patch, the following constructs (not an extensive list) would crash mesa: - mat2 foo = mat2(1); vec4 bar = vec4(foo); - mat3 foo = mat3(1); vec4 bar = vec4(foo); - mat3 foo = mat3(1); ivec4 bar = ivec4(foo); The first case is explicitely allowed by the GLSL spec, as seen on page 101 of the GLSL 4.40 spec: "vec4(mat2) // the vec4 is column 0 followed by column 1" The other cases are implicitely allowed also. The actual changes are quite minimal. We first split each column of the matrix to a list of vectors and then use them to initialize the vector. An additional check to make sure that we are not trying to copy 0 elements of a vector fix the (i)vec4(mat3) case as the last vector (3rd column) is not needed at all. Reviewed-by: Tapani Pälli <tapani.palli@intel.com> Signed-off-by: Martin Peres <martin.peres@linux.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 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.