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Consider the following code: MOV A.x, B.x MOV B.x, C.x After the first line, cur_value[A][0] == B, indicating that A.x's current value came from register B. When processing the second line, we update cur_value[B][0] to C. However, for drect copies, we fail to reset cur_value[A][0] to NULL. This is necessary because the value of A is no longer the value of B. Fixes Counter-Strike: Source in Wine (where the menu rendered completely black in DX9 mode), completely white textures in Civilization V, and the new Piglit test glsl-vs-copy-propagation-1.shader_test. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=42032 Tested-by: Matt Turner <mattst88@gmail.com> Tested-by: Christopher James Halse Rogers <christopher.halse.rogers@canonical.com> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
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.