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This, at least, is an attempt to decode chrominance, as yet unfiltered, and not commuted to RGB (and possibly packed incorrectly).

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This commit is contained in:
Thomas Harte 2016-04-21 23:01:54 -04:00
parent cc7bf97a9c
commit 59c07f7ddd
1 changed files with 6 additions and 4 deletions
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10
Outputs/CRT/Internals/CRTOpenGL.cpp
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@ -506,7 +506,7 @@ char *OpenGLOutputBuilder::get_y_filter_fragment_shader()
"in vec2 inputPositionsVarying[11];"
"uniform vec4 weights[3];"
"out vec4 fragColour;"
"out vec3 fragColour;"
"uniform sampler2D texID;"
@ -532,13 +532,15 @@ char *OpenGLOutputBuilder::get_y_filter_fragment_shader()
"0.0"
")"
");"
"fragColour = vec4("
"vec2 quadrature = vec2(sin(phaseVarying), cos(phaseVarying)) * 0.5;"
"float luminance = "
"dot(vec3("
"dot(samples[0], weights[0]),"
"dot(samples[1], weights[1]),"
"dot(samples[2], weights[2])"
"), vec3(1.0)));"
// "fragColour = vec4(dot(samples[0], weights[0]));"
"), vec3(1.0));"
"float chrominance = (samples[1].y - luminance) / amplitudeVarying;"
"fragColour = vec3(luminance, vec2(0.5) + chrominance * quadrature );"
"}");
}