Marcin Slusarz
7e63b613a5
gl_ClipDistance needs special treatment in form of lowering pass which transforms gl_ClipDistance representation from float[] to vec4[]. There are 2 implementations - at glsl linker level (enabled by LowerClipDistance option) and at glsl_to_tgsi level (enabled unconditionally for gallium drivers). Second implementation is incomplete - it does not take into account transform feedback (see commit642e5b413e"mesa: Fix transform feedback of unsubscripted gl_ClipDistance array" for details). There are 2 possible fixes: - adding transform feedback support into glsl_to_tgsi version - ripping gl_ClipDistance support from glsl_to_tgsi and enabling gl_ClipDistance lowering on glsl linker side This patch implements 2nd option. All it does is: - reverts most of the commit59be691638"st/mesa: add support for gl_ClipDistance" - changes LowerClipDistance to true Fixes Piglit tests "EXT_transform_feedback/builtin-varyings gl_ClipDistance[{2,3,4,5,6,7,8}]-no-subscript" at least on nv50 and evergreen cards.
File: docs/README.WIN32 Last updated: 23 April 2011 Quick Start ----- ----- Windows drivers are build with SCons. Makefiles or Visual Studio projects are no longer shipped or supported. Run scons osmesa mesagdi to build classic mesa Windows GDI drivers; or 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. 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.