GL_ARB_enhanced_layouts: use centroid and sample

When checking for aliasing using mixed auxiliary storages, the tests
checking the usage of centroid and sample were only for the fragment
shader inputs. These qualifiers, although ignored, can also be used in
the rest of the stages.

Components: OpenGL

VK-GL-CTS issue: 1613

Affects:

KHR-GL44.enhanced_layouts.varying_location_aliasing_with_mixed_auxiliary_storage

Change-Id: I4ec1609a63a225ccd8c2ed7b82eb5477a04b6cba
diff --git a/external/openglcts/modules/gl/gl4cEnhancedLayoutsTests.cpp b/external/openglcts/modules/gl/gl4cEnhancedLayoutsTests.cpp
index 136952d..bd23559 100644
--- a/external/openglcts/modules/gl/gl4cEnhancedLayoutsTests.cpp
+++ b/external/openglcts/modules/gl/gl4cEnhancedLayoutsTests.cpp
@@ -19016,22 +19016,13 @@
 					continue;
 				}
 
-				/* Skip vertex shader */
-				if (Utils::Shader::VERTEX == stage)
-				{
-					continue;
-				}
-
 				for (GLuint aux = 0; aux < AUXILIARY_MAX; ++aux)
 				{
 					Utils::Shader::STAGES const shader_stage = static_cast<Utils::Shader::STAGES>(stage);
 					AUXILIARIES const			auxiliary	= static_cast<AUXILIARIES>(aux);
 
-					switch (auxiliary)
+					if (PATCH == auxiliary)
 					{
-					case NONE:
-						break;
-					case PATCH:
 						if (Utils::Shader::TESS_CTRL == shader_stage || Utils::Shader::TESS_EVAL == shader_stage)
 						{
 							bool	 direction			   = Utils::Shader::TESS_EVAL == shader_stage;
@@ -19043,49 +19034,33 @@
 							m_test_cases.push_back(test_case_patch_gohan);
 							m_test_cases.push_back(test_case_patch_goten);
 						}
-						break;
-					case CENTROID:
+						continue;
+					}
+
+					for (GLuint second_aux = 0; second_aux < AUXILIARY_MAX; ++second_aux)
 					{
+						AUXILIARIES const second_auxiliary = static_cast<AUXILIARIES>(second_aux);
+
+						if (PATCH == second_auxiliary || auxiliary == second_auxiliary)
+						{
+							continue;
+						}
+
 						if (Utils::Shader::FRAGMENT != shader_stage)
 						{
-							testCase test_case_centroid_out_gohan = { gohan, goten,		   auxiliary,  NONE,
-																	  false, shader_stage, type_gohan, type_goten };
-							testCase test_case_centroid_out_goten = { gohan, goten,		   NONE,	   auxiliary,
-																	  false, shader_stage, type_gohan, type_goten };
+							testCase test_case_out = { gohan, goten,		auxiliary,  second_auxiliary,
+													   false, shader_stage, type_gohan, type_goten };
 
-							m_test_cases.push_back(test_case_centroid_out_gohan);
-							m_test_cases.push_back(test_case_centroid_out_goten);
+							m_test_cases.push_back(test_case_out);
 						}
 
-						testCase test_case_centroid_in_gohan = { gohan, goten,		  auxiliary,  NONE,
-																 true,  shader_stage, type_gohan, type_goten };
-						testCase test_case_centroid_in_goten = { gohan, goten,		  NONE,		  auxiliary,
-																 true,  shader_stage, type_gohan, type_goten };
-
-						m_test_cases.push_back(test_case_centroid_in_gohan);
-						m_test_cases.push_back(test_case_centroid_in_goten);
-					}
-					break;
-					case SAMPLE:
-						if (Utils::Shader::FRAGMENT == shader_stage)
+						if (Utils::Shader::VERTEX != shader_stage)
 						{
-							testCase test_case_sample_gohan_none = { gohan, goten,		  auxiliary,  NONE,
-																	 true,  shader_stage, type_gohan, type_goten };
-							testCase test_case_sample_goten_none = { gohan, goten,		  NONE,		  auxiliary,
-																	 true,  shader_stage, type_gohan, type_goten };
-							testCase test_case_sample_gohan_centroid = { gohan, goten,		  auxiliary,  CENTROID,
-																		 true,  shader_stage, type_gohan, type_goten };
-							testCase test_case_sample_goten_centroid = { gohan, goten,		  CENTROID,   auxiliary,
-																		 true,  shader_stage, type_gohan, type_goten };
+							testCase test_case_in = { gohan, goten,		   auxiliary,  second_auxiliary,
+													  true,  shader_stage, type_gohan, type_goten };
 
-							m_test_cases.push_back(test_case_sample_gohan_none);
-							m_test_cases.push_back(test_case_sample_goten_none);
-							m_test_cases.push_back(test_case_sample_gohan_centroid);
-							m_test_cases.push_back(test_case_sample_goten_centroid);
+							m_test_cases.push_back(test_case_in);
 						}
-						break;
-					default:
-						TCU_FAIL("Invalid enum");
 					}
 				}
 			}