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When surface_invalidate is called to invalidate a newly created surface in svga_validate_surface_view(), it is possible that the command buffer is already full, and in this case, currently, the associated wddm winsys function will flush the command buffer and resend the invalidate surface command. However, this can pre-maturely flush the command buffer if there is still pending image updates to be patched. To fix the problem, this patch will add a return status to the surface_invalidate interface and if it returns FALSE, the caller will call svga_context_flush() to do the proper context flush. Note, we don't call svga_context_flush() if surface_invalidate() fails when flushing the screen surface cache though, because it is already in the process of context flush, all the image updates are already patched, calling svga_context_flush() can trigger a deadlock. So in this case, we call the winsys context flush interface directly to flush the command buffer. Fixes driver errors and graphics corruption running Tropics. VMware bug 1891975. Also tested with MTT glretrace, piglit and various OpenGL apps such as Heaven, CinebenchR15, NobelClinicianViewer, Lightsmark, GoogleEarth. cc: mesa-stable@lists.freedesktop.org Reviewed-by: Brian Paul <brianp@vmware.com> |
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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.