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d4976158c7
In Gen6, transform feedback is accomplished by having the geometry shader send vertex data to the data port using "Streamed Vertex Buffer Write" messages, while simultaneously passing vertices through to the rest of the graphics pipeline (if rendering is enabled). This patch adds a geometry shader program that simply passes vertices through to the rest of the graphics pipeline. The rest of transform feedback functionality will be added in future patches. To make the new geometry shader easier to test, I've added an environment variable "INTEL_FORCE_GS". If this environment variable is enabled, then the pass-through geometry shader will always be used, regardless of whether transform feedback is in effect. On my Sandy Bridge laptop, I'm able to enable INTEL_FORCE_GS with no Piglit regressions. Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> Acked-by: Eric Anholt <eric@anholt.net> |
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File: docs/README.WIN32 Last updated: 23 April 2011 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. 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.