Kenneth Graunke
688d695868
According to the GLSL ES 3.20, GLSL 4.50, and GLSL 1.20 specs:
"To force all output variables to be invariant, use the pragma
#pragma STDGL invariant(all)
before all declarations in a shader."
Notably, this is only supposed to affect output variables. Furthermore,
"Only variables output from a shader can be candidates for invariance."
It looks like this has been wrong since we first supported the pragma in
2011 (commit 86b4398cd1).
Fixes dEQP-GLES2.functional.shaders.preprocessor.pragmas.pragma_fragment.
v2: Now that all cases are identical (other than compute shaders, which
have no output variables anyway), we can drop the switch statement
entirely. We also don't need the current_function == NULL check;
this was a hold over from when we had a single var_mode_out for both
function parameters and shader varyings, in the bad old days.
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
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.