Jason Ekstrand
3b34ed79f1
This rewires the logic for assigning uniform locations to work in terms of "complex alignments". The basic idea is that, as we walk the list of instructions, we keep track of the alignment and continuity requirements of each slot and assert that the alignments all match up. We then use those alignments in the compaction stage to ensure that everything gets placed at a properly aligned register. The old mechanism handled alignments by special-casing each of the bit sizes and placing 64-bit values first followed by 32-bit values. The old scheme had the advantage of never leaving a hole since all the 64-bit values could be tightly packed and so could the 32-bit values. However, the new scheme has no type size special cases so it handles not only 32 and 64-bit types but should gracefully extend to 16 and 8-bit types as the need arises. Tested-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com> 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 https://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.