!!ARBfp1.0# Custom YUV->RGB conversion program for MPlayer's -vo gl.# Copyleft (C) Reimar D?ffinger, 2005# Licensed under the GNU GPL v2# Usage: mplayer -vo gl:yuv=4:customprog=edgedetect.fp# This is some custom edge-detect like effect.# Try adjusting the gamma!# program.env[0].xy contains the size of one source texelTEMP res, yuv, pos, tmp, sizes;SWZ sizes, program.env[0], x, y, 0, 0;TEX yuv.r, fragment.texcoord[0], texture[0], 2D;ADD pos, fragment.texcoord[0].xyxy, sizes.xwwy; # texels to the right and belowTEX tmp.r, pos.xyxy, texture[0], 2D;MAD yuv.r, yuv.rrrr, {4}, -tmp.rrrr;TEX tmp.r, pos.zwzw, texture[0], 2D;SUB yuv.r, yuv.rrrr, tmp.rrrr;SUB pos, fragment.texcoord[0].xyxy, sizes.xwwy; # texels to the left and aboveTEX tmp.r, pos.xyxy, texture[0], 2D;SUB yuv.r, yuv.rrrr, tmp.rrrr;TEX tmp.r, pos.zwzw, texture[0], 2D;SUB yuv.r, yuv.rrrr, tmp.rrrr;TEX yuv.g, fragment.texcoord[1], texture[1], 2D;TEX yuv.b, fragment.texcoord[2], texture[2], 2D;# now do the normal YUV -> RGB conversion but include effect strength# multiplication by 2 and 0.5 offsetMAD res, yuv.rrrr, {2.328, 2.328, 2.328, 0}, {-0.37416, 1.03133, -0.58599, 0.125};MAD res.rgb, yuv.gggg, {0, -0.391, 2.018, 0}, res;MAD res.rgb, yuv.bbbb, {1.596, -0.813, 0, 0}, res;# do gamma texture lookupTEX res.r, res.raaa, texture[3], 2D;ADD res.a, res.a, 0.25;TEX res.g, res.gaaa, texture[3], 2D;ADD res.a, res.a, 0.25;TEX res.b, res.baaa, texture[3], 2D;# move res into result, this allows easily commenting out some parts.MOV result.color, res;END