Francisco Jerez
3dffd81583
This implements some simple helper functions that can be used to specify the group of channel enable signals and compression enable that apply to a brw_inst instruction. It's intended to replace brw_set_default_compression_control eventually because the current interface has a number of shortcomings inherited from the Gen-4-5-centric representation of compression and group controls as a single non-orthogonal enum: On the one hand it doesn't work for specifying arbitrary group controls other than 1Q and 2Q, which are frequently useful in SIMD32 and FP64 programs. On the other hand the current interface forces you to update the compression *and* group controls simultaneously, which has been the source of a number of generator bugs (a bunch of them fixed in this series), because in many cases we would end up resetting the group controls to zero inadvertently even though everything we wanted to do was disable instruction compression -- The latter seems especially unfortunate on Gen6+ hardware which have no explicit compression control, so we would end up bashing the quarter control field of the instruction for no benefit. Instead of a single function that updates both at the same time introduce separate interfaces to update one or the other independently preserving the current value of the other (which typically comes from the back-end IR so it has to be respected). Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
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.