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a73c65c534
According to the documentation, Ivybridge's math instruction works in SIMD16 mode for the fragment shader, and no longer forbids align16 mode for the vertex shader. The documentation claims that SIMD16 mode isn't supported for INT DIV, but empirical evidence shows that it works fine. Presumably the note is trying to warn us that the variant that returns both quotient and remainder in (dst, dst + 1) doesn't work in SIMD16 mode since dst + 1 would be sechalf(dst), trashing half your results. Since we don't use that variant, we don't care and can just enable SIMD16 everywhere. The documentation also still claims that source modifiers and conditional modifiers aren't supported, but empirical evidence and study of the simulator both show that they work just fine. Goodbye workarounds. Math just works now. Signed-off-by: Kenneth Graunke <kenneth@whitecape.org> Reviewed-by: Paul Berry <stereotype441@gmail.com> |
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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.