Paul Berry
da08ee8e3b
Previously, we didn't do multisample blorp clears because we couldn't figure out how to get them to work. The reason for this was because we weren't setting the brw_blorp_params num_samples field consistently with dst.num_samples. Now that those two fields have been collapsed down into one, we can do multisample blorp clears. However, we need to do a few other pieces of bookkeeping to make them work correctly in all circumstances: - Since blorp clears may now operate on multisampled window system framebuffers, they need to call intel_renderbuffer_set_needs_downsample() to ensure that a downsample happens before buffer swap (or glReadPixels()). - When clearing a layered multisample buffer attachment using UMS or CMS layout, we need to advance layer by multiples of num_samples (since each logical layer is associated with num_samples physical layers). Note: we still don't do multisample fast color clears; more work needs to be done to enable those. Reviewed-by: Chad Versace <chad.versace@linux.intel.com> Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com> Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
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.