-Create new sine and cosine lookup tables with 30 bits of fractional precision for use by the renderer.
-Change R_RotatePoint to use these new tables.

git-svn-id: http://odamex.net/svn/root/branches/texmanager@4378 b0bcef46-2027-0410-bd56-ab726e9a1d04
-Don't recalculate the drawseg texture mapping step values in R_StoreWallRange if it's not necessary.
-Rearrange R_AddLine to mvoe the check for empty, non-rendering lines close to the top of the function.

git-svn-id: http://odamex.net/svn/root/branches/texmanager@4379 b0bcef46-2027-0410-bd56-ab726e9a1d04
-Fix incorrect position of animated sprites during level intermission.

git-svn-id: http://odamex.net/svn/root/branches/texmanager@4380 b0bcef46-2027-0410-bd56-ab726e9a1d04
-Fix a bug calculating the u, v coordinates of the last few pixels in a span rendered with the SSE2 span drawer.

git-svn-id: http://odamex.net/svn/root/branches/texmanager@4381 b0bcef46-2027-0410-bd56-ab726e9a1d04