mirror of https://github.com/mpv-player/mpv
34 lines
1.2 KiB
Plaintext
34 lines
1.2 KiB
Plaintext
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!!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=emboss.fp
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# This is an emboss effect.
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PARAM sizes = program.env[0];
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TEMP res, y, u, v, xdiff, ydiff, pos, tmp;
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TEX y, fragment.texcoord[0], texture[0], 2D;
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SUB pos, fragment.texcoord[0], sizes.xwww;
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TEX tmp, pos, texture[0], 2D;
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SUB xdiff, y, tmp;
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MAD xdiff, xdiff, {0.5, 0.5, 0.5, 0}, {0.5, 0.5, 0.5, 0};
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SUB pos, fragment.texcoord[0], sizes.wyww;
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TEX tmp, pos, texture[0], 2D;
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SUB ydiff, y, tmp;
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MAD res, ydiff, {0.8660, 0.8660, 0.8660, 0}, xdiff;
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# now do the normal YUV -> RGB conversion
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MAD res, res, {1.164, 1.164, 1.164, 0}, {-0.87416, 0.53133, -1.08599, 0};
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TEX u, fragment.texcoord[1], texture[1], 2D;
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MAD res, u, {0, -0.391, 2.018, 0}, res;
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TEX v, fragment.texcoord[2], texture[2], 2D;
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MAD res, v, {1.596, -0.813, 0, 0}, res;
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# do gamma texture lookup
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ADD res.a, res.a, 0.125;
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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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ADD result.color, res, {0, 0, 0, 0};
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END
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