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# ARB_gpu_shader5 spec says:
# "Geometry shaders that emit vertices to multiple vertex streams are
# currently limited to using only the "points" output primitive
# type. A program will fail to link if it includes a geometry shader
# that calls the EmitStreamVertex() built-in function and has any
# other output primitive type parameter."
#
# This test verifies that a link error occurs if EmitStreamVertex()
# is called with a output primitive type different than "points" and
# stream value bigger than zero.
[require]
GLSL >= 1.50
GL_ARB_gpu_shader5
[vertex shader passthrough]
[geometry shader]
#extension GL_ARB_gpu_shader5 : enable
layout(points) in;
layout(triangle_strip, max_vertices=3) out;
layout (stream=1) out vec4 var1;
void main()
{
var1 = vec4(0.0, 0.0, 0.0, 1.0);
gl_Position = var1;
EmitStreamVertex(1);
var1 = vec4(0.0, 1.0, 0.0, 1.0);
gl_Position = var1;
EmitStreamVertex(1);
var1 = vec4(1.0, 1.0, 0.0, 1.0);
gl_Position = var1;
EmitStreamVertex(1);
EndStreamPrimitive(1);
}
[fragment shader]
out vec4 color;
void main()
{
color = vec4(0.0, 1.0, 0.0, 1.0);
}
[test]
link error
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