Add samples InstanceExtensionProperties, InstanceLayerExtensionProperties, InstanceLayerProperties, MultipleSets (#320)

+ slightly adjust some other files.

samples/InstanceLayerExtensionProperties/InstanceLayerExtensionProperties.cpp

@@ -0,0 +1,102 @@
+// 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 "vulkan/vulkan.hpp"
+#include <iostream>
+#include <sstream>
+#include <vector>
+
+static char const* AppName = "InstanceLayerExtensionProperties";
+static char const* EngineName = "Vulkan.hpp";
+
+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::vector<vk::LayerProperties> layerProperties = vk::enumerateInstanceLayerProperties();
+
+    /* VULKAN_KEY_START */
+
+    std::vector<PropertyData> propertyData;
+    propertyData.reserve(layerProperties.size());
+
+    for (auto const& layerProperty : layerProperties)
+    {
+      std::vector<vk::ExtensionProperties> extensionProperties = vk::enumerateInstanceExtensionProperties(std::string(layerProperty.layerName));
+      propertyData.push_back(PropertyData(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;
+        if (pd.extensionProperties.empty())
+        {
+          std::cout << "Layer Extension: 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::runtime_error err)
+  {
+    std::cout << "std::runtime_error: " << err.what() << std::endl;
+    exit(-1);
+  }
+  catch (...)
+  {
+    std::cout << "unknown error\n";
+    exit(-1);
+  }
+  return 0;
+}