40 lines
814 B
Plaintext
40 lines
814 B
Plaintext
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@vs vs
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in vec4 vertex;
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out vec2 TexCoords;
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uniform vs_p { mat4 model; mat4 projection; };
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void main()
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{
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TexCoords = vec2(vertex.x, 1.0 - vertex.y);
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gl_Position = projection * model * vec4(vertex.xy, 0.0, 1.0);
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}
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@end
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@fs fs
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in vec2 TexCoords;
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out vec4 color;
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uniform texture2D texture_y;
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uniform texture2D texture_cb;
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uniform texture2D texture_cr;
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uniform sampler smp;
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mat4 rec601 = mat4(
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1.16438, 0.00000, 1.59603, -0.87079,
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1.16438, -0.39176, -0.81297, 0.52959,
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1.16438, 2.01723, 0.00000, -1.08139,
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0, 0, 0, 1
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);
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void main()
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{
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float y = texture(sampler2D(texture_y,smp), TexCoords).r;
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float cb = texture(sampler2D(texture_cb,smp), TexCoords).r;
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float cr = texture(sampler2D(texture_cr,smp), TexCoords).r;
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color = vec4(y, cb, cr, 1.f) * rec601;
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}
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@end
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@program mpeg2 vs fs
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