Kenneth Graunke
92f01fc5f9
We'd like to start using soft-pin to assign BO addresses up front, and
never move them again. Our previous plan for dealing with 48-bit VF
cache bugs was to relocate vertex buffers to the low 4GB, so we'd never
have addresses that alias in the low 32 bits. But that requires moving
buffers dynamically.
This patch tracks the last seen BO address for each vertex/index buffer,
and emits a VF cache invalidate if the high bits change. (Ideally, we
won't hit this case very often.) This should work for the soft-pin
case, but unfortunately won't work in the relocation case, as we don't
actually know the addresses. So, we have to use both methods.
v2: Mention that the cache uses a <VertexBufferIndex, Address> tuple
more explicitly (suggested by Scott). Mention "single batch" too
(suggested by Chris).
Reviewed-by: Scott D Phillips <scott.d.phillips@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.