mirror of
https://github.com/mpv-player/mpv
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b91ba5d648
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@19023 b3059339-0415-0410-9bf9-f77b7e298cf2
38 lines
1.5 KiB
GLSL
38 lines
1.5 KiB
GLSL
!!ARBfp1.0
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# Custom YUV->RGB conversion program for MPlayer's -vo gl.
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# Copyleft (C) Reimar Döffinger, 2005
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# Licensed under the GNU GPL v2
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# Usage: mplayer -vo gl:yuv=4:customprog=edgedetect.fp
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# This is some custom edge-detect like effect.
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# Try adjusting the gamma!
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# program.env[0].xy contains the size of one source texel
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TEMP res, yuv, pos, tmp, sizes;
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SWZ sizes, program.env[0], x, y, 0, 0;
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TEX yuv.r, fragment.texcoord[0], texture[0], 2D;
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ADD pos, fragment.texcoord[0].xyxy, sizes.xwwy; # texels to the right and below
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TEX tmp.r, pos.xyxy, texture[0], 2D;
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MAD yuv.r, yuv.rrrr, {4}, -tmp.rrrr;
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TEX tmp.r, pos.zwzw, texture[0], 2D;
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SUB yuv.r, yuv.rrrr, tmp.rrrr;
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SUB pos, fragment.texcoord[0].xyxy, sizes.xwwy; # texels to the left and above
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TEX tmp.r, pos.xyxy, texture[0], 2D;
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SUB yuv.r, yuv.rrrr, tmp.rrrr;
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TEX tmp.r, pos.zwzw, texture[0], 2D;
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SUB yuv.r, yuv.rrrr, tmp.rrrr;
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TEX yuv.g, fragment.texcoord[1], texture[1], 2D;
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TEX yuv.b, fragment.texcoord[2], texture[2], 2D;
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# now do the normal YUV -> RGB conversion but include effect strength
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# multiplication by 2 and 0.5 offset
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MAD res, yuv.rrrr, {2.328, 2.328, 2.328, 0}, {-0.37416, 1.03133, -0.58599, 0.125};
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MAD res.rgb, yuv.gggg, {0, -0.391, 2.018, 0}, res;
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MAD res.rgb, yuv.bbbb, {1.596, -0.813, 0, 0}, res;
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# do gamma texture lookup
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TEX res.r, res.raaa, texture[3], 2D;
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ADD res.a, res.a, 0.25;
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TEX res.g, res.gaaa, texture[3], 2D;
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ADD res.a, res.a, 0.25;
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TEX res.b, res.baaa, texture[3], 2D;
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# move res into result, this allows easily commenting out some parts.
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MOV result.color, res;
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END
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