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# Section 4.3.8.1 (Input Layout Qualifiers) of the GLSL 1.50 spec says:
#
# At least one geometry shader (compilation unit) in a program must
# declare an input layout, and all geometry shader input layout
# declarations in a program must declare the same layout. It is not
# required that all geometry shaders in a program declare an input
# layout.
#
# This test verifies that a link error occurs if no compilation unit
# declares an input layout.
[require]
GLSL >= 1.50
[vertex shader]
#version 150
in vec4 vertex;
out vec4 vertex_to_gs;
void main()
{
vertex_to_gs = vertex;
}
[geometry shader]
#version 150
layout(triangle_strip, max_vertices = 3) out;
void do_vertex(int i);
void main()
{
for (int i = 0; i < 3; i++)
do_vertex(i);
}
[geometry shader]
#version 150
in vec4 vertex_to_gs[3];
void do_vertex(int i)
{
gl_Position = vertex_to_gs[i];
EmitVertex();
}
[fragment shader]
#version 150
out vec4 color;
void main()
{
color = vec4(0.0, 1.0, 0.0, 1.0);
}
[test]
link error
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