Introduce raii-compliant handle wrapper classes.

RAII_Samples/InstanceLayerExtensionProperties/CMakeLists.txt

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+# Copyright(c) 2019, NVIDIA CORPORATION. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+cmake_minimum_required(VERSION 3.2)
+
+project(RAII_InstanceLayerExtensionProperties)
+  
+set(HEADERS
+)
+  
+set(SOURCES
+  InstanceLayerExtensionProperties.cpp
+)
+  
+source_group(headers FILES ${HEADERS})
+source_group(sources FILES ${SOURCES})
+  
+add_executable(RAII_InstanceLayerExtensionProperties
+  ${HEADERS}
+  ${SOURCES}
+)
+  
+set_target_properties(RAII_InstanceLayerExtensionProperties PROPERTIES FOLDER "RAII_Samples")
+target_link_libraries(RAII_InstanceLayerExtensionProperties PRIVATE utils)

RAII_Samples/InstanceLayerExtensionProperties/InstanceLayerExtensionProperties.cpp

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+// Copyright(c) 2019, NVIDIA CORPORATION. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// VulkanHpp Samples : InstanceLayerExtensionProperties
+//                     Get list of global layers and their associated extensions, if any.
+
+#include "../utils/utils.hpp"
+
+#include <iostream>
+#include <sstream>
+#include <vector>
+
+struct PropertyData
+{
+  PropertyData( vk::LayerProperties const &                  layerProperties_,
+                std::vector<vk::ExtensionProperties> const & extensionProperties_ )
+    : layerProperties( layerProperties_ ), extensionProperties( extensionProperties_ )
+  {}
+
+  vk::LayerProperties                  layerProperties;
+  std::vector<vk::ExtensionProperties> extensionProperties;
+};
+
+int main( int /*argc*/, char ** /*argv*/ )
+{
+  try
+  {
+    std::unique_ptr<vk::raii::Context> context         = vk::raii::su::make_unique<vk::raii::Context>();
+    std::vector<vk::LayerProperties>   layerProperties = context->enumerateInstanceLayerProperties();
+
+    /* VULKAN_KEY_START */
+
+    std::vector<PropertyData> propertyData;
+    propertyData.reserve( layerProperties.size() );
+
+    for ( auto const & layerProperty : layerProperties )
+    {
+      std::vector<vk::ExtensionProperties> extensionProperties =
+        context->enumerateInstanceExtensionProperties( vk::Optional<const std::string>( layerProperty.layerName ) );
+      propertyData.emplace_back( layerProperty, extensionProperties );
+    }
+
+    /* VULKAN_KEY_END */
+
+    std::cout << "Instance Layers:" << std::endl;
+    if ( propertyData.empty() )
+    {
+      std::cout << "Set the environment variable VK_LAYER_PATH to point to the location of your layers" << std::endl;
+    }
+    else
+    {
+      for ( auto const & pd : propertyData )
+      {
+        std::cout << pd.layerProperties.layerName << std::endl;
+        std::cout << "Layer Extensions: ";
+        if ( pd.extensionProperties.empty() )
+        {
+          std::cout << "None";
+        }
+        else
+        {
+          for ( auto it = pd.extensionProperties.begin(); it != pd.extensionProperties.end(); ++it )
+          {
+            if ( it != pd.extensionProperties.begin() )
+            {
+              std::cout << ", ";
+            }
+            std::cout << it->extensionName << " Version " << it->specVersion;
+          }
+        }
+        std::cout << std::endl << std::endl;
+      }
+    }
+    std::cout << std::endl;
+  }
+  catch ( vk::SystemError & err )
+  {
+    std::cout << "vk::SystemError: " << err.what() << std::endl;
+    exit( -1 );
+  }
+  catch ( std::exception & err )
+  {
+    std::cout << "std::exception: " << err.what() << std::endl;
+    exit( -1 );
+  }
+  catch ( ... )
+  {
+    std::cout << "unknown error\n";
+    exit( -1 );
+  }
+  return 0;
+}