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Rather than having two separate backends, just create a small layer that translates the subset of Mesa IR used for ARB_vertex_program and fixed function programs to the Vec4 IR. This allows us to use the same optimization passes, code generator, register allocator as for GLSL. v2: Incorporate Eric's review comments. - Fix use of uninitialized src_swiz[] values in the SWIZZLE_ZERO/ONE case: just initialize it to 0 (.x) since the value doesn't matter (those channels get writemasked out anyway). - Properly reswizzle source register's swizzles, rather than overwriting the swizzle. - Port the old brw_vs_emit code for computing .x of the EXP2 opcode. - Update comments, removing mention of NV_vertex_program, etc. - Delete remaining #warning lines and debug comments. Signed-off-by: Kenneth Graunke <kenneth@whitecape.org> Reviewed-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.