Iago Toral Quiroga
5be11d2236
This code in brw_set_dest adjusts the execution size of any instruction with a dst.width < 8. However, we don't want to do this with instructions operating on doubles, since these will have a width of 4, but still need an execution size of 8 (for SIMD8). Unfortunately, we can't just check the size of the operands involved to detect if we are doing an operation on doubles, because we can have instructions that do operations on double operands interpreted as UD, operating on any of its 2 32-bit components. Previous commits have made it so we never emit instructions with a horizontal width of 4 that don't have the correct execution size set for gen6+, so we can skip it in this case, avoiding the conflicts with fp64 requirements. Expanding the same fix to other hardware generations requires many more changes but since we are not targetting fp64 support on them wer don't really care for now. Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
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 http://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.