Document vo gl lscale=3

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@25756 b3059339-0415-0410-9bf9-f77b7e298cf2

DOCS/man/en/mplayer.1

@@ -3652,6 +3652,8 @@ Older cards will not be able to handle this for chroma at least in fullscreen mo
 .br
 2: Use cubic filtering in horizontal, linear filtering in vertical direction.
 Works on a few more cards than method 1.
+.br
+3: Same as 1 but does not use a lookup texture. Might be faster on some cards.
 .RE
 .IPs cscale=<n>
 Select the scaling function to use for chrominance scaling.

libvo/vo_gl.c

@@ -855,6 +855,7 @@ static int preinit(const char *arg)
               "    0: use standard bilinear scaling for luma.\n"
               "    1: use improved bicubic scaling for luma.\n"
               "    2: use cubic in X, linear in Y direction scaling for luma.\n"
+              "    3: as 1 but without using a lookup texture.\n"
               "  cscale=<n>\n"
               "    as lscale but for chroma (2x slower with little visible effect).\n"
               "  customprog=<filename>\n"