-Change R_ClipLineToFrustum to generate two 30-bit fixed-point numbers indicating how much of the line should be clipped from the left & right endpoints.
-This prevents inaccuracies introduced when a lineseg's world coordinates are converted to camera coordinates, clipped to the view frustum, and then converted back to world coordinates.

git-svn-id: http://odamex.net/svn/root/branches/rend32@4071 b0bcef46-2027-0410-bd56-ab726e9a1d04
-Fix a masked midtexture projection overflow.

git-svn-id: http://odamex.net/svn/root/branches/rend32@4072 b0bcef46-2027-0410-bd56-ab726e9a1d04
-Merge from trunk into rend32.

git-svn-id: http://odamex.net/svn/root/branches/rend32@4074 b0bcef46-2027-0410-bd56-ab726e9a1d04