Fix debug info file and source strings

The file and source text was not being set correctly in the test output.
This change makes the test fixture consistent with the command line
behavior, "-gVS", which was my original intent when I added these tests.

Test/baseResults/spv.debuginfo.glsl.tesc.out

@@ -10,7 +10,7 @@ spv.debuginfo.glsl.tesc
                               MemoryModel Logical GLSL450
                               EntryPoint TessellationControl 14  "main" 260 265 294 383 399 516 532 542 557
                               ExecutionMode 14 OutputVertices 4
-               2:             String  ""
+               2:             String  "spv.debuginfo.glsl.tesc"
                8:             String  "uint"
               17:             String  "float"
               31:             String  "screenSpaceTessFactor"
@@ -21,6 +21,146 @@ spv.debuginfo.glsl.tesc
 // OpModuleProcessed keep-uncalled
 // OpModuleProcessed entry-point main
 #line 1
+/*
+The MIT License (MIT)
+
+Copyright (c) 2022 Sascha Willems
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+#version 450
+
+layout(set = 0, binding = 0) uniform UBO
+{
+	mat4 projection;
+	mat4 modelview;
+	vec4 lightPos;
+	vec4 frustumPlanes[6];
+	float displacementFactor;
+	float tessellationFactor;
+	vec2 viewportDim;
+	float tessellatedEdgeSize;
+} ubo;
+
+layout(set = 0, binding = 1) uniform sampler2D samplerHeight;
+
+layout (vertices = 4) out;
+
+layout (location = 0) in vec3 inNormal[];
+layout (location = 1) in vec2 inUV[];
+
+layout (location = 0) out vec3 outNormal[4];
+layout (location = 1) out vec2 outUV[4];
+
+// Calculate the tessellation factor based on screen space
+// dimensions of the edge
+float screenSpaceTessFactor(vec4 p0, vec4 p1)
+{
+	// Calculate edge mid point
+	vec4 midPoint = 0.5 * (p0 + p1);
+	// Sphere radius as distance between the control points
+	float radius = distance(p0, p1) / 2.0;
+
+	// View space
+	vec4 v0 = ubo.modelview  * midPoint;
+
+	// Project into clip space
+	vec4 clip0 = (ubo.projection * (v0 - vec4(radius, vec3(0.0))));
+	vec4 clip1 = (ubo.projection * (v0 + vec4(radius, vec3(0.0))));
+
+	// Get normalized device coordinates
+	clip0 /= clip0.w;
+	clip1 /= clip1.w;
+
+	// Convert to viewport coordinates
+	clip0.xy *= ubo.viewportDim;
+	clip1.xy *= ubo.viewportDim;
+
+	// Return the tessellation factor based on the screen size
+	// given by the distance of the two edge control points in screen space
+	// and a reference (min.) tessellation size for the edge set by the application
+	return clamp(distance(clip0, clip1) / ubo.tessellatedEdgeSize * ubo.tessellationFactor, 1.0, 64.0);
+}
+
+// Checks the current's patch visibility against the frustum using a sphere check
+// Sphere radius is given by the patch size
+bool frustumCheck()
+{
+	// Fixed radius (increase if patch size is increased in example)
+	const float radius = 8.0f;
+	vec4 pos = gl_in[gl_InvocationID].gl_Position;
+	pos.y -= textureLod(samplerHeight, inUV[0], 0.0).r * ubo.displacementFactor;
+
+	// Check sphere against frustum planes
+	for (int i = 0; i < 6; i++) {
+		if (dot(pos, ubo.frustumPlanes[i]) + radius < 0.0)
+		{
+			return false;
+		}
+	}
+	return true;
+}
+
+void main()
+{
+	if (gl_InvocationID == 0)
+	{
+		if (!frustumCheck())
+		{
+			gl_TessLevelInner[0] = 0.0;
+			gl_TessLevelInner[1] = 0.0;
+			gl_TessLevelOuter[0] = 0.0;
+			gl_TessLevelOuter[1] = 0.0;
+			gl_TessLevelOuter[2] = 0.0;
+			gl_TessLevelOuter[3] = 0.0;
+		}
+		else
+		{
+			if (ubo.tessellationFactor > 0.0)
+			{
+				gl_TessLevelOuter[0] = screenSpaceTessFactor(gl_in[3].gl_Position, gl_in[0].gl_Position);
+				gl_TessLevelOuter[1] = screenSpaceTessFactor(gl_in[0].gl_Position, gl_in[1].gl_Position);
+				gl_TessLevelOuter[2] = screenSpaceTessFactor(gl_in[1].gl_Position, gl_in[2].gl_Position);
+				gl_TessLevelOuter[3] = screenSpaceTessFactor(gl_in[2].gl_Position, gl_in[3].gl_Position);
+				gl_TessLevelInner[0] = mix(gl_TessLevelOuter[0], gl_TessLevelOuter[3], 0.5);
+				gl_TessLevelInner[1] = mix(gl_TessLevelOuter[2], gl_TessLevelOuter[1], 0.5);
+			}
+			else
+			{
+				// Tessellation factor can be set to zero by example
+				// to demonstrate a simple passthrough
+				gl_TessLevelInner[0] = 1.0;
+				gl_TessLevelInner[1] = 1.0;
+				gl_TessLevelOuter[0] = 1.0;
+				gl_TessLevelOuter[1] = 1.0;
+				gl_TessLevelOuter[2] = 1.0;
+				gl_TessLevelOuter[3] = 1.0;
+			}
+		}
+
+	}
+
+	gl_out[gl_InvocationID].gl_Position =  gl_in[gl_InvocationID].gl_Position;
+	outNormal[gl_InvocationID] = inNormal[gl_InvocationID];
+	outUV[gl_InvocationID] = inUV[gl_InvocationID];
+}
 "
               40:             String  "p0"
               46:             String  "p1"