For the time being, we put the gl_FrontFacing value in the FOGC.Y input
register. Combining FOGC and FrontFacing in one register is a bit of a
hack and may need to be changed someday.
And set new cliprects before deriving other state from them. This ensures
cliprects aren't accessed after having been freed.
Thanks to Panagiotis Papadakos for testing various iterations of this.
Using IR_SGE and IR_SGT with transposed args doesn't work since the __asm
calls don't do argument matching by name, but by position.
This fixes the broken lessThan() and lessThanEqual() functions.
GLSL matrices are stored in column-major order while GL_ARB_vertex/fragment_program
use row-major. So, need to use STATE_MATRIX_TRANSPOSE for built-in matrices.
Unfortunately, this means that the expression M * V isn't very efficient since we
need to extract the rows out of M. And that's the typical expression for vertex
transformation: gl_ModelViewProjectionMatrix * gl_Position.
Solve this inefficiency by looking for M*V expressions and replacing them
with V*Transpose(M).
Also, add support for GLSL 1.20's MatrixTranspose, Inverse and InverseTranspose
matrices.
glMaterial changes the current specular exponent or glLight changes
the intensity distribution of the light, but _mesa_update_state doesn't
update the corresponding light table. So they must be updated at this time.
-include missing definitions
-add files to compile
-remove files from compile list which are removed from the repositry
-add support for vbo
new file: src/mesa/vbo/descrip.mms
modified: src/mesa/descrip.mms
modified: src/mesa/drivers/osmesa/descrip.mms
modified: src/mesa/drivers/x11/descrip.mms
modified: src/mesa/swrast_setup/descrip.mms
modified: src/mesa/tnl/descrip.mms
