[require]
GLSL >= 1.20

[vertex shader]
void main()
{
	gl_Position = gl_Vertex;
}

[fragment shader]
#version 120

void main()
{
	float f1 = 1.0f;
	float f2 = 0.F;
	float f3 = .2f;
	float f4 = 5e-1F;

	gl_FragColor = vec4(f1, f2, f3, f4);
}

[test]
draw rect -1 -1 2 2
probe rgba 1 1 1.0 0.0 0.2 0.5