jsl-prism.PaintTextureYUV444.jsl Maven / Gradle / Ivy
/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
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param sampler inputTex;
float4 paint(float2 texCoord)
{
float3 YUV = sample(inputTex, texCoord).rgb;
float4 RGBA;
// subtract 0.5 to put UV values in the range [-0.5, 0.5]
YUV.g -= 0.5;
YUV.b -= 0.5;
RGBA.r = YUV.r + (1.403 * YUV.b);
RGBA.g = YUV.r - (0.344 * YUV.g) - (0.714 * YUV.b);
RGBA.b = YUV.r + (1.770 * YUV.g);
RGBA.a = 1.0;
return RGBA;
}