[require]
GLSL >= 1.40
GL_ARB_fragment_layer_viewport
GL_AMD_vertex_shader_layer

[vertex shader]
#version 140
#extension GL_AMD_vertex_shader_layer: enable
in vec4 piglit_vertex;
uniform int layer;

void main()
{
	gl_Position = piglit_vertex;
	gl_Layer = layer;
}

[fragment shader]
#version 140
#extension GL_ARB_fragment_layer_viewport: require

uniform int layer;

void main()
{
	if (gl_Layer == layer)
		gl_FragColor = vec4(0,1,0,0);
	else
		gl_FragColor = vec4(1,0,0,0);
}

[test]
clear color 0.0 0.0 0.0 0.0
clear

uniform int layer 0
draw rect -1 -1 1 1

uniform int layer 1
draw rect 0 -1 1 1

uniform int layer 10000
draw rect -1 0 1 1

uniform int layer -10000
draw rect 0 0 1 1

probe all rgb 0.0 1.0 0.0