af7ba989fb
ARB_fragment_layer_viewport requires that if a fs reads layer or viewport index but it wasn't output by gs (or vs with other extensions), then it reads 0. This never worked for llvmpipe, and is surprisingly non-trivial to fix. The problem is the mechanism to handle non-existing outputs in draw is rather crude, it will simply redirect them to whatever is at output 0, thus later stages will just get garbage. So, rather than trying to fix this up (which looks non-trivial), fix this up in llvmpipe setup by detecting this case there and output a fixed zero directly. While here, also optimize the hw vertex layout a bit - previously if the gs outputted layer (or vp) and the fs read those inputs, we'd add them twice to the vertex layout, which is unnecessary. And do some minor cleanup, slots don't require that many bits, there was some bogus (but harmless) float/int mixup for psize slot too, make the slots all unsigned (we always put pos at pos zero thus everything else has to be positive if it exists), and make sure they are properly initialized (layer and vp index slot were not which looked fishy as they might not have got set back to zero when changing from a gs which outputs them to one which does not). This fixes the failures in piglit's arb_fragment_layer_viewport group (3 each for layer and vp). Reviewed-by: Jose Fonseca <jfonseca@vmware.com> |
||
|---|---|---|
| bin | ||
| docs | ||
| doxygen | ||
| include | ||
| m4 | ||
| scons | ||
| src | ||
| .dir-locals.el | ||
| .gitattributes | ||
| .gitignore | ||
| .travis.yml | ||
| Android.common.mk | ||
| Android.mk | ||
| CleanSpec.mk | ||
| Makefile.am | ||
| SConstruct | ||
| VERSION | ||
| appveyor.yml | ||
| autogen.sh | ||
| common.py | ||
| configure.ac | ||
| install-gallium-links.mk | ||
| install-lib-links.mk | ||
docs/README.WIN32
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.