Jason Ekstrand
faf20df143
Previously, we had an OFFSET_VALUE source for logical texture instructions that was intended to mean exactly what it says, "offset". In reality, we only fully used it for tg4 offsets. We used offset_value.file == IMM to mean, "you have a constant offset, go look in instr->offset" and didn't actually use the contents of the register at all in that case except for in nir_emit_texture where we used it as a temporary before we copy it into instr->offset. This commit renames OFFSET_VALUE to TG4_OFFSET and restricts its usage to indirect tg4 offsets only. The nir_emit_texture code is refactored so that we explicitly build a header_bits value which is placed in instr->offset and the constant offset values (both for tg4 and regular texture operations) are used to construct header_bits and don't go through the offset source at all. Finally, we stop passing offset_value in to lower_sampler_logical_send_gen5 because we can't do indirect offsets until gen7 anyway. Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
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.