gstreamer/subprojects/gst-plugins-good/ext/qt6/YUV_BIPLANAR.frag

36 lines
840 B
GLSL

#version 440
layout(location = 0) in vec2 vTexCoord;
layout(location = 0) out vec4 fragColor;
layout(std140, binding = 0) uniform buf {
mat4 qt_Matrix;
ivec4 swizzle;
mat4 color_matrix;
float qt_Opacity;
} ubuf;
layout(binding = 1) uniform sampler2D Ytex;
layout(binding = 2) uniform sampler2D UVtex;
vec4 swizzle(in vec4 texel, in ivec4 swizzle) {
return vec4(texel[swizzle[0]], texel[swizzle[1]], texel[swizzle[2]], texel[swizzle[3]]);
}
vec4 yuva_to_rgba(in vec4 yuva, in mat4 color_matrix) {
return yuva * color_matrix;
}
void main()
{
vec4 yuva;
yuva.x = texture(Ytex, vTexCoord).r;
yuva.y = texture(UVtex, vTexCoord).r;
yuva.z = texture(UVtex, vTexCoord).g;
yuva.a = 1.0;
yuva = swizzle(yuva, ubuf.swizzle);
vec4 rgba = yuva_to_rgba (yuva, ubuf.color_matrix);
fragColor = rgba * ubuf.qt_Opacity;
}