Kenneth Graunke
2dfc119f22
Previously, we would just assert fail and die in this case. The only safeguard is the "estimated max prim size" checks when starting a draw (or compute dispatch or BLORP operation)...which are woefully broken. Growing is fairly straightforward: 1. Allocate a new larger BO. 2. memcpy the existing contents over to the new buffer 3. Set the new BO to the same GTT offset as the old BO. When emitting relocations, we write the presumed GTT offset of the target BO. If we changed it, we'd have to update all the existing values (by walking the relocation list and looking at offsets), which is more expensive. With the old BO freed, ideally the kernel could simply place the new BO at that offset anyway. 4. Update the validation list to contain the new BO. 5. Update the relocation list to have the GEM handle for the new BO (which we can skip if using I915_EXEC_HANDLE_LUT). v2: Update to handle malloc'd shadow buffers. Reviewed-by: Matt Turner <mattst88@gmail.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
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.