--- ...gs-redeclares-both-pervertex-blocks.shader_test | 67 ++++++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 tests/spec/glsl-1.50/execution/gs-redeclares-both-pervertex-blocks.shader_test
diff --git a/tests/spec/glsl-1.50/execution/gs-redeclares-both-pervertex-blocks.shader_test b/tests/spec/glsl-1.50/execution/gs-redeclares-both-pervertex-blocks.shader_test new file mode 100644 index 0000000..7b8aafb --- /dev/null +++ b/tests/spec/glsl-1.50/execution/gs-redeclares-both-pervertex-blocks.shader_test @@ -0,0 +1,67 @@ +# This test verifies that a single geometry shader can redeclare both +# the gl_PerVertex input and gl_PerVertex output interface blocks +# without error, and that data is properly exchanged with the vertex +# and fragment shaders. + +[require] +GLSL >= 1.50 + +[vertex shader] +out gl_PerVertex { + float gl_PointSize; +}; + +void main() +{ + gl_PointSize = float(gl_VertexID); +} + +[geometry shader] +layout(triangles) in; +layout(triangle_strip, max_vertices = 4) out; + +in gl_PerVertex { + float gl_PointSize; +} gl_in[]; + +out gl_PerVertex { + vec4 gl_Position; +}; + +out vec4 color; + +void main() +{ + const vec4 vertices[4] = vec4[4]( + vec4(-1.0, -1.0, 0.0, 1.0), + vec4(-1.0, 1.0, 0.0, 1.0), + vec4( 1.0, -1.0, 0.0, 1.0), + vec4( 1.0, 1.0, 0.0, 1.0) + ); + + bool pass = true; + for (int i = 0; i < 3; i++) { + if (gl_in[i].gl_PointSize != float(i)) + pass = false; + } + + for (int i = 0; i < 4; i++) { + color = pass ? vec4(0.0, 1.0, 0.0, 1.0) : vec4(1.0, 0.0, 0.0, 1.0); + gl_Position = vertices[i]; + EmitVertex(); + } +} + +[fragment shader] +in vec4 color; + +void main() +{ + gl_FragColor = color; +} + +[test] +clear color 0.0 0.0 0.0 0.0 +clear +draw arrays GL_TRIANGLES 0 3 +probe all rgba 0.0 1.0 0.0 1.0 -- 1.8.4 _______________________________________________ Piglit mailing list Piglit@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/piglit