Paul Berry
c09adcb21b
Previously, builtin_variables.cpp was written assuming that we supported ARB_geometry_shader4 style geometry shader inputs, meaning that each built-in varying input to a geometry was supplied via an array variable whose name ended in "In", e.g. gl_PositionIn or gl_PointSizeIn. However, in GLSL 1.50 style geometry shaders, things work differently--built-in inputs are supplied to geometry shaders via a built-in interface block called gl_in, which contains all the built-in inputs using their usual names (e.g. the gl_Position input is supplied to the geometry shader as gl_in[i].gl_Position). This patch adds the necessary logic to builtin_variables.cpp to create the gl_in interface block and populate it accordingly for geometry shader inputs. The old ARB_geometry_shader4 style varyings are removed, though they can easily be added back in the future if we decide to support ARB_geometry_shader4. Reviewed-by: Ian Romanick <ian.d.romanick@intel.com> Reviewed-by: Jordan Justen <jordan.l.justen@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 osmesa mesagdi to build classic mesa Windows GDI drivers; 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. 1) install python 2.7 2) install scons (latest) 3) install mingw, flex, and bison 4) install libxml2 from here: http://www.lfd.uci.edu/~gohlke/pythonlibs get libxml2-python-2.9.1.win-amd64-py2.7.exe 5) install pywin32 from here: http://www.lfd.uci.edu/~gohlke/pythonlibs get pywin32-218.4.win-amd64-py2.7.exe 6) install git 7) download mesa from git see http://www.mesa3d.org/repository.html 8) 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.