Introduce MaterialX Benchmarks

Adds a new benchmarking macro MATERIALX_BUILD_BENCHMARK_TESTS to enable GenShader Performance Tests using Catch2 Benchmarking system.

CMakeLists.txt

@@ -45,6 +45,7 @@ option(MATERIALX_BUILD_GEN_MSL "Build the MSL shader generator back-end." ON)
 option(MATERIALX_BUILD_RENDER "Build the MaterialX Render modules." ON)
 option(MATERIALX_BUILD_OIIO "Build OpenImageIO support for MaterialXRender." OFF)
 option(MATERIALX_BUILD_TESTS "Build unit tests." ON)
+option(MATERIALX_BUILD_BENCHMARK_TESTS "Build benchmark tests." OFF)
 
 option(MATERIALX_BUILD_SHARED_LIBS "Build MaterialX libraries as shared rather than static." OFF)
 option(MATERIALX_PYTHON_LTO "Enable link-time optimizations for MaterialX Python." ON)
@@ -131,6 +132,7 @@ mark_as_advanced(MATERIALX_BUILD_GEN_MSL)
 mark_as_advanced(MATERIALX_BUILD_RENDER)
 mark_as_advanced(MATERIALX_BUILD_OIIO)
 mark_as_advanced(MATERIALX_BUILD_TESTS)
+mark_as_advanced(MATERIALX_BUILD_BENCHMARK_TESTS)
 mark_as_advanced(MATERIALX_BUILD_SHARED_LIBS)
 mark_as_advanced(MATERIALX_NAMESPACE_SUFFIX)
 mark_as_advanced(MATERIALX_LIBNAME_SUFFIX)
@@ -180,6 +182,9 @@ endif()
 if (MATERIALX_DYNAMIC_ANALYSIS)
     add_definitions(-DMATERIALX_DYNAMIC_ANALYSIS)
 endif()
+if (MATERIALX_BUILD_BENCHMARK_TESTS)
+    add_definitions(-DMATERIALX_BUILD_BENCHMARK_TESTS)
+endif()
 
 if (MATERIALX_BUILD_GEN_MDL)
     add_definitions(-DMATERIALX_MDLC_EXECUTABLE=\"${MATERIALX_MDLC_EXECUTABLE}\")

source/MaterialXTest/MaterialXGenGlsl/GenGlsl.cpp

@@ -121,14 +121,14 @@ TEST_CASE("GenShader: Bind Light Shaders", "[genglsl]")
 
 TEST_CASE("GenShader: Performance Test", "[genglsl]")
 {
-#ifdef MATERIALX_DYNAMIC_ANALYSIS
-    SUCCEED("Skipping performance test in dynamic analysis build");
-#else
+#ifdef MATERIALX_BUILD_BENCHMARK_TESTS
     mx::GenContext context(mx::GlslShaderGenerator::create());
     BENCHMARK("Load documents, validate and generate shader") 
     {
         return GenShaderUtil::shaderGenPerformanceTest(context);
     };
+#else
+    SUCCEED("Performance tests are disabled");
 #endif
 }