# From the ARB_shader_group_vote spec:
#
#    "The function allInvocationsEqualARB() returns true if <value> is
#     the same for all active invocations in the group."

[require]
GL >= 3.2
GLSL >= 1.50
GL_ARB_shader_group_vote

[vertex shader]
#extension GL_ARB_shader_group_vote: enable

in vec4 piglit_vertex;
out vec4 color;

void main()
{
  gl_Position = piglit_vertex;

  if (allInvocationsEqualARB(true) && allInvocationsEqualARB(false))
    color = vec4(0.0, 1.0, 0.0, 1.0);
  else
    color = vec4(1.0, 0.0, 0.0, 1.0);
}

[fragment shader]
in vec4 color;
out vec4 frag_color;

void main()
{
  frag_color = color;
}

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