xref: /third_party/vk-gl-cts/data/gles31/shaders/es31/linkage_geometry.test

group varying "Varying linkage"
	group rules "Rules"
		case input_type_mismatch
			version 310 es
			desc "Geometry shader input type mismatch"
			expect link_fail
			require extension { "GL_OES_geometry_shader" | "GL_EXT_geometry_shader" } in { geometry }
			values { output float out0 = 1.0; }
			vertex ""
				#version 310 es
				${VERTEX_DECLARATIONS}
				out mediump float geo_in;
				void main()
				{
					geo_in = 1.0;
					${VERTEX_OUTPUT}
				}
			""
			geometry ""
				#version 310 es
				${GEOMETRY_DECLARATIONS}
				in mediump vec2 geo_in[];
				out mediump float geo_out;
				void main()
				{
					for (int ndx = 0; ndx < gl_in.length(); ++ndx)
					{
						geo_out = geo_in[ndx].x + geo_in[ndx].y;
						gl_Position = gl_in[ndx].gl_Position;
						EmitVertex();
					}
				}
			""
			fragment ""
				#version 310 es
				precision mediump float;
				${FRAGMENT_DECLARATIONS}
				in mediump float geo_out;
				void main()
				{
					out0 = geo_out;
					${FRAGMENT_OUTPUT}
				}
			""
		end

		case output_type_mismatch
			version 310 es
			desc "Geometry shader output type mismatch"
			expect link_fail
			require extension { "GL_OES_geometry_shader" | "GL_EXT_geometry_shader" } in { geometry }
			values { output float out0 = 1.0; }
			vertex ""
				#version 310 es
				${VERTEX_DECLARATIONS}
				void main()
				{
					${VERTEX_OUTPUT}
				}
			""
			geometry ""
				#version 310 es
				${GEOMETRY_DECLARATIONS}
				out mediump float geo_out;
				void main()
				{
					for (int ndx = 0; ndx < gl_in.length(); ++ndx)
					{
						geo_out = 1.0;
						gl_Position = gl_in[ndx].gl_Position;
						EmitVertex();
					}
				}
			""
			fragment ""
				#version 310 es
				precision mediump float;
				${FRAGMENT_DECLARATIONS}
				in mediump vec2 geo_out;
				void main()
				{
					out0 = geo_out.x + geo_out.y;
					${FRAGMENT_OUTPUT}
				}
			""
		end

		case input_different_precision
			version 310 es
			desc "Geometry shader input precision mismatch"
			require extension { "GL_OES_geometry_shader" | "GL_EXT_geometry_shader" } in { geometry }
			values { output float out0 = 1.0; }
			vertex ""
				#version 310 es
				${VERTEX_DECLARATIONS}
				out highp float geo_in;
				void main()
				{
					geo_in = 1.0;
					${VERTEX_OUTPUT}
				}
			""
			geometry ""
				#version 310 es
				${GEOMETRY_DECLARATIONS}
				in lowp float geo_in[];
				out mediump float geo_out;
				void main()
				{
					for (int ndx = 0; ndx < gl_in.length(); ++ndx)
					{
						geo_out = geo_in[ndx];
						gl_Position = gl_in[ndx].gl_Position;
						EmitVertex();
					}
				}
			""
			fragment ""
				#version 310 es
				precision mediump float;
				${FRAGMENT_DECLARATIONS}
				in mediump float geo_out;
				void main()
				{
					out0 = geo_out;
					${FRAGMENT_OUTPUT}
				}
			""
		end

		case output_different_precision
			version 310 es
			desc "Geometry shader output precision mismatch"
			require extension { "GL_OES_geometry_shader" | "GL_EXT_geometry_shader" } in { geometry }
			values { output float out0 = 1.0; }
			vertex ""
				#version 310 es
				${VERTEX_DECLARATIONS}
				void main()
				{
					${VERTEX_OUTPUT}
				}
			""
			geometry ""
				#version 310 es
				${GEOMETRY_DECLARATIONS}
				out highp float geo_out;
				void main()
				{
					for (int ndx = 0; ndx < gl_in.length(); ++ndx)
					{
						geo_out = 1.0;
						gl_Position = gl_in[ndx].gl_Position;
						EmitVertex();
					}
				}
			""
			fragment ""
				#version 310 es
				precision mediump float;
				${FRAGMENT_DECLARATIONS}
				in lowp float geo_out;
				void main()
				{
					out0 = geo_out;
					${FRAGMENT_OUTPUT}
				}
			""
		end

		case input_no_declaration
			version 310 es
			desc "Geometry shader input has no matching output"
			expect link_fail
			require extension { "GL_OES_geometry_shader" | "GL_EXT_geometry_shader" } in { geometry }
			values { output float out0 = 1.0; }
			vertex ""
				#version 310 es
				${VERTEX_DECLARATIONS}
				void main()
				{
					${VERTEX_OUTPUT}
				}
			""
			geometry ""
				#version 310 es
				${GEOMETRY_DECLARATIONS}
				in lowp float geo_in[];
				out mediump float geo_out;
				void main()
				{
					for (int ndx = 0; ndx < gl_in.length(); ++ndx)
					{
						geo_out = geo_in[ndx];
						gl_Position = gl_in[ndx].gl_Position;
						EmitVertex();
					}
				}
			""
			fragment ""
				#version 310 es
				precision mediump float;
				${FRAGMENT_DECLARATIONS}
				in mediump float geo_out;
				void main()
				{
					out0 = geo_out;
					${FRAGMENT_OUTPUT}
				}
			""
		end

		case output_no_declaration
			version 310 es
			desc "Geometry shader has no output for an input"
			expect link_fail
			require extension { "GL_OES_geometry_shader" | "GL_EXT_geometry_shader" } in { geometry }
			values { output float out0 = 1.0; }
			vertex ""
				#version 310 es
				${VERTEX_DECLARATIONS}
				void main()
				{
					${VERTEX_OUTPUT}
				}
			""
			geometry ""
				#version 310 es
				${GEOMETRY_DECLARATIONS}
				void main()
				{
					for (int ndx = 0; ndx < gl_in.length(); ++ndx)
					{
						gl_Position = gl_in[ndx].gl_Position;
						EmitVertex();
					}
				}
			""
			fragment ""
				#version 310 es
				precision mediump float;
				${FRAGMENT_DECLARATIONS}
				in mediump float geo_out;
				void main()
				{
					out0 = geo_out;
					${FRAGMENT_OUTPUT}
				}
			""
		end

		case input_superfluous_declaration
			version 310 es
			desc "Geometry shader has no input for an output"
			require extension { "GL_OES_geometry_shader" | "GL_EXT_geometry_shader" } in { geometry }
			values { output float out0 = 1.0; }
			vertex ""
				#version 310 es
				${VERTEX_DECLARATIONS}
				out mediump float geo_in;
				void main()
				{
					geo_in = 1.0;
					${VERTEX_OUTPUT}
				}
			""
			geometry ""
				#version 310 es
				${GEOMETRY_DECLARATIONS}
				out mediump float geo_out;
				void main()
				{
					for (int ndx = 0; ndx < gl_in.length(); ++ndx)
					{
						geo_out = 1.0;
						gl_Position = gl_in[ndx].gl_Position;
						EmitVertex();
					}
				}
			""
			fragment ""
				#version 310 es
				precision mediump float;
				${FRAGMENT_DECLARATIONS}
				in mediump float geo_out;
				void main()
				{
					out0 = geo_out;
					${FRAGMENT_OUTPUT}
				}
			""
		end

		case output_superfluous_declaration
			version 310 es
			desc "Geometry shader has output without an matching input"
			require extension { "GL_OES_geometry_shader" | "GL_EXT_geometry_shader" } in { geometry }
			values { output float out0 = 1.0; }
			vertex ""
				#version 310 es
				${VERTEX_DECLARATIONS}
				void main()
				{
					${VERTEX_OUTPUT}
				}
			""
			geometry ""
				#version 310 es
				${GEOMETRY_DECLARATIONS}
				out mediump float geo_out;
				void main()
				{
					for (int ndx = 0; ndx < gl_in.length(); ++ndx)
					{
						geo_out = 1.0;
						gl_Position = gl_in[ndx].gl_Position;
						EmitVertex();
					}
				}
			""
			fragment ""
				#version 310 es
				precision mediump float;
				${FRAGMENT_DECLARATIONS}
				void main()
				{
					out0 = 1.0;
					${FRAGMENT_OUTPUT}
				}
			""
		end

		case input_array_explicit_size
			version 310 es
			desc "Geometry shader input is explicitly sized array"
			require extension { "GL_OES_geometry_shader" | "GL_EXT_geometry_shader" } in { geometry }
			values { output float out0 = 1.0; }
			vertex ""
				#version 310 es
				${VERTEX_DECLARATIONS}
				out mediump float geo_in;
				void main()
				{
					geo_in = 1.0;
					${VERTEX_OUTPUT}
				}
			""
			geometry ""
				#version 310 es
				${GEOMETRY_DECLARATIONS}
				in mediump float geo_in[3];
				out mediump float geo_out;
				void main()
				{
					for (int ndx = 0; ndx < gl_in.length(); ++ndx)
					{
						geo_out = geo_in[ndx];
						gl_Position = gl_in[ndx].gl_Position;
						EmitVertex();
					}
				}
			""
			fragment ""
				#version 310 es
				precision mediump float;
				${FRAGMENT_DECLARATIONS}
				in mediump float geo_out;
				void main()
				{
					out0 = geo_out;
					${FRAGMENT_OUTPUT}
				}
			""
		end

		case input_non_array
			version 310 es
			desc "Geometry shader has no input for an output"
			require extension { "GL_OES_geometry_shader" | "GL_EXT_geometry_shader" } in { geometry }
			expect compile_or_link_fail
			values { output float out0 = 1.0; }
			vertex ""
				#version 310 es
				${VERTEX_DECLARATIONS}
				out mediump float geo_in;
				void main()
				{
					geo_in = 1.0;
					${VERTEX_OUTPUT}
				}
			""
			geometry ""
				#version 310 es
				${GEOMETRY_DECLARATIONS}
				in mediump float geo_in;
				out mediump float geo_out;
				void main()
				{
					for (int ndx = 0; ndx < gl_in.length(); ++ndx)
					{
						geo_out = geo_in;
						gl_Position = gl_in[ndx].gl_Position;
						EmitVertex();
					}
				}
			""
			fragment ""
				#version 310 es
				precision mediump float;
				${FRAGMENT_DECLARATIONS}
				in mediump float geo_out;
				void main()
				{
					out0 = geo_out;
					${FRAGMENT_OUTPUT}
				}
			""
		end

		case input_array_size_mismatch
			version 310 es
			desc "Geometry shader input is explicitly sized array, but size does not match input primitive"
			require extension { "GL_OES_geometry_shader" | "GL_EXT_geometry_shader" } in { geometry }
			expect compile_or_link_fail
			values { output float out0 = 1.0; }
			vertex ""
				#version 310 es
				${VERTEX_DECLARATIONS}
				out mediump float geo_in;
				void main()
				{
					geo_in = 1.0;
					${VERTEX_OUTPUT}
				}
			""
			geometry ""
				#version 310 es
				${GEOMETRY_DECLARATIONS}
				in mediump float geo_in[4];
				out mediump float geo_out;
				void main()
				{
					for (int ndx = 0; ndx < gl_in.length(); ++ndx)
					{
						geo_out = geo_in[ndx+1];
						gl_Position = gl_in[ndx].gl_Position;
						EmitVertex();
					}
				}
			""
			fragment ""
				#version 310 es
				precision mediump float;
				${FRAGMENT_DECLARATIONS}
				in mediump float geo_out;
				void main()
				{
					out0 = geo_out;
					${FRAGMENT_OUTPUT}
				}
			""
		end

		case input_block
			version 310 es
			desc "Geometry shader input block"
			require extension { "GL_OES_geometry_shader" | "GL_EXT_geometry_shader" } in { geometry }
			require extension { "GL_OES_shader_io_blocks" | "GL_EXT_shader_io_blocks" } in { vertex }
			values { output float out0 = 1.0; }
			vertex ""
				#version 310 es
				${VERTEX_DECLARATIONS}
				out IOBlockName
				{
					mediump float var;
				} outputInstanceName;
				void main()
				{
					outputInstanceName.var = 1.0;
					${VERTEX_OUTPUT}
				}
			""
			geometry ""
				#version 310 es
				${GEOMETRY_DECLARATIONS}
				in IOBlockName
				{
					mediump float var;
				} inputInstanceName[];
				out mediump float geo_out;
				void main()
				{
					geo_out = inputInstanceName[0].var;
					gl_Position = gl_in[0].gl_Position;
					EmitVertex();
					geo_out = inputInstanceName[1].var;
					gl_Position = gl_in[1].gl_Position;
					EmitVertex();
					geo_out = inputInstanceName[2].var;
					gl_Position = gl_in[2].gl_Position;
					EmitVertex();
				}
			""
			fragment ""
				#version 310 es
				precision mediump float;
				${FRAGMENT_DECLARATIONS}
				in mediump float geo_out;
				void main()
				{
					out0 = geo_out;
					${FRAGMENT_OUTPUT}
				}
			""
		end

		case input_block_explicit_size
			version 310 es
			desc "Geometry shader input block with explicit size"
			require extension { "GL_OES_geometry_shader" | "GL_EXT_geometry_shader" } in { geometry }
			require extension { "GL_OES_shader_io_blocks" | "GL_EXT_shader_io_blocks" } in { vertex }
			values { output float out0 = 1.0; }
			vertex ""
				#version 310 es
				${VERTEX_DECLARATIONS}
				out IOBlockName
				{
					mediump float var;
				} outputInstanceName;
				void main()
				{
					outputInstanceName.var = 1.0;
					${VERTEX_OUTPUT}
				}
			""
			geometry ""
				#version 310 es
				${GEOMETRY_DECLARATIONS}
				in IOBlockName
				{
					mediump float var;
				} inputInstanceName[3];
				out mediump float geo_out;
				void main()
				{
					geo_out = inputInstanceName[0].var;
					gl_Position = gl_in[0].gl_Position;
					EmitVertex();
					geo_out = inputInstanceName[1].var;
					gl_Position = gl_in[1].gl_Position;
					EmitVertex();
					geo_out = inputInstanceName[2].var;
					gl_Position = gl_in[2].gl_Position;
					EmitVertex();
				}
			""
			fragment ""
				#version 310 es
				precision mediump float;
				${FRAGMENT_DECLARATIONS}
				in mediump float geo_out;
				void main()
				{
					out0 = geo_out;
					${FRAGMENT_OUTPUT}
				}
			""
		end

		case input_block_non_array
			version 310 es
			desc "Geometry shader input block is non an array"
			expect compile_or_link_fail
			require extension { "GL_OES_geometry_shader" | "GL_EXT_geometry_shader" } in { geometry }
			require extension { "GL_OES_shader_io_blocks" | "GL_EXT_shader_io_blocks" } in { vertex }
			values { output float out0 = 1.0; }
			vertex ""
				#version 310 es
				${VERTEX_DECLARATIONS}
				out IOBlockName
				{
					mediump float var;
				} outputInstanceName;
				void main()
				{
					outputInstanceName.var = 1.0;
					${VERTEX_OUTPUT}
				}
			""
			geometry ""
				#version 310 es
				${GEOMETRY_DECLARATIONS}
				in IOBlockName
				{
					mediump float var;
				} inputInstanceName;
				out mediump float geo_out;
				void main()
				{
					for (int ndx = 0; ndx < gl_in.length(); ++ndx)
					{
						geo_out = inputInstanceName.var;
						gl_Position = gl_in[ndx].gl_Position;
						EmitVertex();
					}
				}
			""
			fragment ""
				#version 310 es
				precision mediump float;
				${FRAGMENT_DECLARATIONS}
				in mediump float geo_out;
				void main()
				{
					out0 = geo_out;
					${FRAGMENT_OUTPUT}
				}
			""
		end

		case input_block_array_size_mismatch
			version 310 es
			desc "Geometry shader input block invalid array size"
			expect compile_or_link_fail
			require extension { "GL_OES_geometry_shader" | "GL_EXT_geometry_shader" } in { geometry }
			require extension { "GL_OES_shader_io_blocks" | "GL_EXT_shader_io_blocks" } in { vertex }
			values { output float out0 = 1.0; }
			vertex ""
				#version 310 es
				${VERTEX_DECLARATIONS}
				out IOBlockName
				{
					mediump float var;
				} outputInstanceName;
				void main()
				{
					outputInstanceName.var = 1.0;
					${VERTEX_OUTPUT}
				}
			""
			geometry ""
				#version 310 es
				${GEOMETRY_DECLARATIONS}
				in IOBlockName
				{
					mediump float var;
				} inputInstanceName[4];
				out mediump float geo_out;
				void main()
				{
					geo_out = inputInstanceName[0].var;
					gl_Position = gl_in[0].gl_Position;
					EmitVertex();
					geo_out = inputInstanceName[1].var;
					gl_Position = gl_in[1].gl_Position;
					EmitVertex();
					geo_out = inputInstanceName[2].var + inputInstanceName[3].var;
					gl_Position = gl_in[2].gl_Position;
					EmitVertex();
				}
			""
			fragment ""
				#version 310 es
				precision mediump float;
				${FRAGMENT_DECLARATIONS}
				in mediump float geo_out;
				void main()
				{
					out0 = geo_out;
					${FRAGMENT_OUTPUT}
				}
			""
		end

		case output_block
			version 310 es
			desc "Geometry shader output block"
			require extension { "GL_OES_geometry_shader" | "GL_EXT_geometry_shader" } in { geometry }
			require extension { "GL_OES_shader_io_blocks" | "GL_EXT_shader_io_blocks" } in { fragment }
			values { output float out0 = 1.0; }
			vertex ""
				#version 310 es
				${VERTEX_DECLARATIONS}
				void main()
				{
					${VERTEX_OUTPUT}
				}
			""
			geometry ""
				#version 310 es
				${GEOMETRY_DECLARATIONS}
				out IOBlockName
				{
					mediump float var;
				} outputInstanceName;
				void main()
				{
					for (int ndx = 0; ndx < gl_in.length(); ++ndx)
					{
						outputInstanceName.var = 1.0;
						gl_Position = gl_in[ndx].gl_Position;
						EmitVertex();
					}
				}
			""
			fragment ""
				#version 310 es
				precision mediump float;
				${FRAGMENT_DECLARATIONS}
				in IOBlockName
				{
					mediump float var;
				} inputInstanceName;
				void main()
				{
					out0 = inputInstanceName.var;
					${FRAGMENT_OUTPUT}
				}
			""
		end

		case output_block_array
			version 310 es
			desc "Geometry shader output block array"
			require extension { "GL_OES_geometry_shader" | "GL_EXT_geometry_shader" } in { geometry }
			require extension { "GL_OES_shader_io_blocks" | "GL_EXT_shader_io_blocks" } in { fragment }
			values { output float out0 = 1.0; }
			vertex ""
				#version 310 es
				${VERTEX_DECLARATIONS}
				void main()
				{
					${VERTEX_OUTPUT}
				}
			""
			geometry ""
				#version 310 es
				${GEOMETRY_DECLARATIONS}
				out IOBlockName
				{
					mediump float var;
				} outputInstanceName[2];
				void main()
				{
					for (int ndx = 0; ndx < gl_in.length(); ++ndx)
					{
						outputInstanceName[0].var = 2.0;
						outputInstanceName[1].var = 1.0;
						gl_Position = gl_in[ndx].gl_Position;
						EmitVertex();
					}
				}
			""
			fragment ""
				#version 310 es
				precision mediump float;
				${FRAGMENT_DECLARATIONS}
				in IOBlockName
				{
					mediump float var;
				} inputInstanceName[2];
				void main()
				{
					out0 = inputInstanceName[0].var - inputInstanceName[1].var;
					${FRAGMENT_OUTPUT}
				}
			""
		end

		case unspecified_input_primitive_type
			version 310 es
			desc "Geometry shader input type unspecified"
			expect compile_or_link_fail
			require extension { "GL_OES_geometry_shader" | "GL_EXT_geometry_shader" } in { geometry }
			vertex ""
				#version 310 es
				${VERTEX_DECLARATIONS}
				void main()
				{
					${VERTEX_OUTPUT}
				}
			""
			geometry ""
				#version 310 es
				layout (triangle_strip, max_vertices=3) out;
				void main()
				{
					gl_Position = vec4(0.0, 0.0, 0.0, 1.0);
					EmitVertex();
					gl_Position = vec4(0.0, 1.0, 0.0, 1.0);
					EmitVertex();
					gl_Position = vec4(1.0, 1.0, 0.0, 1.0);
					EmitVertex();
				}
			""
			fragment ""
				#version 310 es
				precision mediump float;
				${FRAGMENT_DECLARATIONS}
				void main()
				{
					${FRAGMENT_OUTPUT}
				}
			""
		end

		case unspecified_output_primitive_type
			version 310 es
			desc "Geometry shader output type unspecified"
			expect compile_or_link_fail
			require extension { "GL_OES_geometry_shader" | "GL_EXT_geometry_shader" } in { geometry }
			vertex ""
				#version 310 es
				${VERTEX_DECLARATIONS}
				void main()
				{
					${VERTEX_OUTPUT}
				}
			""
			geometry ""
				#version 310 es
				layout (triangles) in;
				layout (max_vertices=3) out;
				void main()
				{
					for (int ndx = 0; ndx < gl_in.length(); ++ndx)
					{
						gl_Position = gl_in[ndx].gl_Position;
						EmitVertex();
					}
				}
			""
			fragment ""
				#version 310 es
				precision mediump float;
				${FRAGMENT_DECLARATIONS}
				void main()
				{
					${FRAGMENT_OUTPUT}
				}
			""
		end

		case unspecified_output_primitive_num_vertices
			version 310 es
			desc "Geometry shader output type unspecified"
			expect compile_or_link_fail
			require extension { "GL_OES_geometry_shader" | "GL_EXT_geometry_shader" } in { geometry }
			vertex ""
				#version 310 es
				${VERTEX_DECLARATIONS}
				void main()
				{
					${VERTEX_OUTPUT}
				}
			""
			geometry ""
				#version 310 es
				layout (triangles) in;
				layout (triangle_strip) out;
				void main()
				{
					for (int ndx = 0; ndx < gl_in.length(); ++ndx)
					{
						gl_Position = gl_in[ndx].gl_Position;
						EmitVertex();
					}
				}
			""
			fragment ""
				#version 310 es
				precision mediump float;
				${FRAGMENT_DECLARATIONS}
				void main()
				{
					${FRAGMENT_OUTPUT}
				}
			""
		end

		# access_more_than_available_input_vertices
		case access_more_than_available_input_vertices
			version 310 es
			desc "Geometry shader input block with explicit size"
			expect compile_or_link_fail
			require extension { "GL_OES_geometry_shader" | "GL_EXT_geometry_shader" } in { geometry }
			vertex ""
				#version 310 es
				${VERTEX_DECLARATIONS}
				void main()
				{
					${VERTEX_OUTPUT}
				}
			""
			geometry ""
				#version 310 es
				${GEOMETRY_DECLARATIONS}
				void main()
				{
					gl_Position = gl_in[0].gl_Position;
					EmitVertex();
					gl_Position = gl_in[1].gl_Position;
					EmitVertex();
					gl_Position = gl_in[4].gl_Position; // access more than available
					EmitVertex();
				}
			""
			fragment ""
				#version 310 es
				precision mediump float;
				${FRAGMENT_DECLARATIONS}
				void main()
				{
					${FRAGMENT_OUTPUT}
				}
			""
		end
	end

	import "linkage_geometry_varying_types.test"

	group qualifiers "Varying qualifiers"
		case smooth
			version 310 es
			desc "varying with smooth interpolation"
			require extension { "GL_OES_geometry_shader" | "GL_EXT_geometry_shader" } in { geometry }
			values
			{
				input float in0		= 1.0;
				output float out0	= 1.0;
			}
			vertex ""
				#version 310 es
				${VERTEX_DECLARATIONS}
				smooth out mediump float vtx_var;
				void main()
				{
					vtx_var = in0;
					${VERTEX_OUTPUT}
				}
			""
			geometry ""
				#version 310 es
				${GEOMETRY_DECLARATIONS}
				smooth in mediump float vtx_var[];
				smooth out mediump float geo_var;
				void main()
				{
					for (int ndx = 0; ndx < gl_in.length(); ++ndx)
					{
						geo_var = vtx_var[ndx];
						gl_Position = gl_in[ndx].gl_Position;
						EmitVertex();
					}
				}
			""
			fragment ""
				#version 310 es
				precision mediump float;
				${FRAGMENT_DECLARATIONS}
				smooth in float geo_var;
				void main()
				{
					out0 = geo_var;
					${FRAGMENT_OUTPUT}
				}
			""
		end

		case flat
			version 310 es
			desc "varying with flat interpolation"
			require extension { "GL_OES_geometry_shader" | "GL_EXT_geometry_shader" } in { geometry }
			values
			{
				input float in0		= 1.0;
				output float out0	= 1.0;
			}
			vertex ""
				#version 310 es
				${VERTEX_DECLARATIONS}
				flat out mediump float vtx_var;
				void main()
				{
					vtx_var = in0;
					${VERTEX_OUTPUT}
				}
			""
			geometry ""
				#version 310 es
				${GEOMETRY_DECLARATIONS}
				flat in mediump float vtx_var[];
				flat out mediump float geo_var;
				void main()
				{
					for (int ndx = 0; ndx < gl_in.length(); ++ndx)
					{
						geo_var = vtx_var[ndx];
						gl_Position = gl_in[ndx].gl_Position;
						EmitVertex();
					}
				}
			""
			fragment ""
				#version 310 es
				precision mediump float;
				${FRAGMENT_DECLARATIONS}
				flat in float geo_var;
				void main()
				{
					out0 = geo_var;
					${FRAGMENT_OUTPUT}
				}
			""
		end

		case centroid
			version 310 es
			desc "varying declared with centroid qualifier"
			require extension { "GL_OES_geometry_shader" | "GL_EXT_geometry_shader" } in { geometry }
			values
			{
				input float in0		= 1.0;
				output float out0	= 1.0;
			}
			vertex ""
				#version 310 es
				${VERTEX_DECLARATIONS}
				centroid out mediump float vtx_var;
				void main()
				{
					vtx_var = in0;
					${VERTEX_OUTPUT}
				}
			""
			geometry ""
				#version 310 es
				${GEOMETRY_DECLARATIONS}
				centroid in mediump float vtx_var[];
				centroid out mediump float geo_var;
				void main()
				{
					for (int ndx = 0; ndx < gl_in.length(); ++ndx)
					{
						geo_var = vtx_var[ndx];
						gl_Position = gl_in[ndx].gl_Position;
						EmitVertex();
					}
				}
			""
			fragment ""
				#version 310 es
				precision mediump float;
				${FRAGMENT_DECLARATIONS}
				centroid in float geo_var;
				void main()
				{
					out0 = geo_var;
					${FRAGMENT_OUTPUT}
				}
			""
		end

		case sample
			version 310 es
			desc "varying declared with sample qualifier"
			require extension { "GL_OES_geometry_shader" | "GL_EXT_geometry_shader" } in { geometry }
			require extension { "GL_OES_shader_multisample_interpolation" }
			values
			{
				input float in0		= 1.0;
				output float out0	= 1.0;
			}
			vertex ""
				#version 310 es
				${VERTEX_DECLARATIONS}
				sample out mediump float vtx_var;
				void main()
				{
					vtx_var = in0;
					${VERTEX_OUTPUT}
				}
			""
			geometry ""
				#version 310 es
				${GEOMETRY_DECLARATIONS}
				sample in mediump float vtx_var[];
				sample out mediump float geo_var;
				void main()
				{
					for (int ndx = 0; ndx < gl_in.length(); ++ndx)
					{
						geo_var = vtx_var[ndx];
						gl_Position = gl_in[ndx].gl_Position;
						EmitVertex();
					}
				}
			""
			fragment ""
				#version 310 es
				precision mediump float;
				${FRAGMENT_DECLARATIONS}
				sample in float geo_var;
				void main()
				{
					out0 = geo_var;
					${FRAGMENT_OUTPUT}
				}
			""
		end
	end
end

group uniform "Uniform linkage"
	group rules "Rules"

		case type_mismatch_1
			version 310 es
			desc "uniforms declared with different types"
			expect link_fail
			require extension { "GL_OES_geometry_shader" | "GL_EXT_geometry_shader" } in { geometry }
			vertex ""
				#version 310 es
				${VERTEX_DECLARATIONS}
				uniform mediump float u_var;
				out mediump float vtx_var;
				void main()
				{
					vtx_var = u_var;
					${VERTEX_OUTPUT}
				}
			""
			geometry ""
				#version 310 es
				${GEOMETRY_DECLARATIONS}
				uniform mediump vec4 u_var;
				in mediump float vtx_var[];
				out mediump float geo_var;
				void main()
				{
					for (int ndx = 0; ndx < gl_in.length(); ++ndx)
					{
						geo_var = vtx_var[ndx];
						gl_Position = gl_in[ndx].gl_Position + u_var;
						EmitVertex();
					}
				}
			""
			fragment ""
				#version 310 es
				precision mediump float;
				${FRAGMENT_DECLARATIONS}
				in float geo_var;
				void main()
				{
					${FRAG_COLOR} = vec4(geo_var);
				}
			""
		end

		case type_mismatch_2
			version 310 es
			desc "uniforms declared with different types"
			expect link_fail
			require extension { "GL_OES_geometry_shader" | "GL_EXT_geometry_shader" } in { geometry }
			require limit "GL_MAX_VERTEX_ATOMIC_COUNTERS" > 0
			vertex ""
				#version 310 es
				${VERTEX_DECLARATIONS}
				layout(binding=0) uniform atomic_uint u_var;
				out mediump float vtx_var;
				void main()
				{
					uint result = atomicCounterIncrement(u_var);
					vtx_var = float(result);
					${VERTEX_OUTPUT}
				}
			""
			geometry ""
				#version 310 es
				${GEOMETRY_DECLARATIONS}
				uniform mediump vec4 u_var;
				in mediump float vtx_var[];
				out mediump float geo_var;
				void main()
				{
					for (int ndx = 0; ndx < gl_in.length(); ++ndx)
					{
						geo_var = vtx_var[ndx];
						gl_Position = gl_in[ndx].gl_Position + u_var;
						EmitVertex();
					}
				}
			""
			fragment ""
				#version 310 es
				precision mediump float;
				${FRAGMENT_DECLARATIONS}
				in float geo_var;
				void main()
				{
					${FRAG_COLOR} = vec4(geo_var);
				}
			""
		end

		case type_mismatch_3
			version 310 es
			desc "uniforms declared with different types"
			expect link_fail
			require extension { "GL_OES_geometry_shader" | "GL_EXT_geometry_shader" } in { geometry }
			require limit "GL_MAX_VERTEX_IMAGE_UNIFORMS" > 0
			vertex ""
				#version 310 es
				${VERTEX_DECLARATIONS}
				layout(binding=0) layout(rgba8i) uniform readonly highp iimage2D u_var;
				out mediump float vtx_var;
				void main()
				{
					int result = imageSize(u_var).x;
					vtx_var = float(result);
					${VERTEX_OUTPUT}
				}
			""
			geometry ""
				#version 310 es
				${GEOMETRY_DECLARATIONS}
				uniform mediump vec4 u_var;
				in mediump float vtx_var[];
				out mediump float geo_var;
				void main()
				{
					for (int ndx = 0; ndx < gl_in.length(); ++ndx)
					{
						geo_var = vtx_var[ndx];
						gl_Position = gl_in[ndx].gl_Position + u_var;
						EmitVertex();
					}
				}
			""
			fragment ""
				#version 310 es
				precision mediump float;
				${FRAGMENT_DECLARATIONS}
				in float geo_var;
				void main()
				{
					${FRAG_COLOR} = vec4(geo_var);
				}
			""
		end

		case precision_mismatch
			version 310 es
			desc "uniforms declared with different precisions"
			expect link_fail
			require extension { "GL_OES_geometry_shader" | "GL_EXT_geometry_shader" } in { geometry }
			vertex ""
				#version 310 es
				${VERTEX_DECLARATIONS}
				uniform highp float u_var;
				out mediump float vtx_var;
				void main()
				{
					vtx_var = u_var;
					${VERTEX_OUTPUT}
				}
			""
			geometry ""
				#version 310 es
				${GEOMETRY_DECLARATIONS}
				uniform mediump float u_var;
				in mediump float vtx_var[];
				out mediump float geo_var;
				void main()
				{
					for (int ndx = 0; ndx < gl_in.length(); ++ndx)
					{
						geo_var = vtx_var[ndx];
						gl_Position = gl_in[ndx].gl_Position + vec4(u_var);
						EmitVertex();
					}
				}
			""
			fragment ""
				#version 310 es
				precision mediump float;
				${FRAGMENT_DECLARATIONS}
				in float geo_var;
				void main()
				{
					${FRAG_COLOR} = vec4(geo_var);
				}
			""
		end

		case struct_partial_usage
			version 310 es
			desc "uniforms struct used partially in different stages"
			require extension { "GL_OES_geometry_shader" | "GL_EXT_geometry_shader" } in { geometry }
			values
			{
				uniform float val.vtxValue	= 1.0;
				uniform float val.geoValue	= 1.0;
				uniform float val.frgValue	= 1.0;
			}
			vertex ""
				#version 310 es
				${VERTEX_DECLARATIONS}
				struct S
				{
					mediump float vtxValue;
					mediump float geoValue;
					mediump float frgValue;
				};
				uniform S val;
				out mediump float vtx_var;
				void main()
				{
					vtx_var = val.vtxValue;
					${VERTEX_OUTPUT}
				}
			""
			geometry ""
				#version 310 es
				${GEOMETRY_DECLARATIONS}
				struct S
				{
					mediump float vtxValue;
					mediump float geoValue;
					mediump float frgValue;
				};
				uniform S val;
				in mediump float vtx_var[];
				out mediump float geo_var;
				void main()
				{
					for (int ndx = 0; ndx < gl_in.length(); ++ndx)
					{
						geo_var = vtx_var[ndx] + val.geoValue;
						gl_Position = gl_in[ndx].gl_Position;
						EmitVertex();
					}
				}
			""
			fragment ""
				#version 310 es
				precision mediump float;
				${FRAGMENT_DECLARATIONS}
				struct S
				{
					mediump float vtxValue;
					mediump float geoValue;
					mediump float frgValue;
				};
				uniform S val;
				in float geo_var;
				void main()
				{
					${FRAG_COLOR} = vec4(geo_var + val.frgValue);
				}
			""
		end
	end

	import "linkage_geometry_uniform_types.test"
end