Fix alpha value of STATE_LIGHTMODEL_SCENECOLOR. From the spec:
authorKeith Whitwell <keith@tungstengraphics.com>
Fri, 15 Apr 2005 12:57:23 +0000 (12:57 +0000)
committerKeith Whitwell <keith@tungstengraphics.com>
Fri, 15 Apr 2005 12:57:23 +0000 (12:57 +0000)
commit78803b2667c1dfe1dc47e09b61a4c29303e09d0b
treee77fb3e2816280155e7bcbf1c8283d0ad4a2c62c
parenta131d50fb76cfa4c129c2a9d6ec2a0c83d51b85a
Fix alpha value of STATE_LIGHTMODEL_SCENECOLOR.  From the spec:

 The "w" component of the program parameter variable is filled with
 the alpha component of the front diffuse material color.

Make sure matrix inverses are uptodate also.
src/mesa/shader/program.c