Add a couple of new samples, improved some others: (#414)

new:
- InstanceVersion: print out the instance version
- PhysicalDeviceExtensions: print out the device specific extensions
- PhysicalDeviceFeatures: print out the device specific features
- PhysicalDeviceGroups: print out the device groups (interesting with SLI)
- PhysicalDeviceMemoryProperties: print out the device specific memory properties
- PhysicalDeviceQueueFamilyProperties: print out the device specific queue family properties
- SurfaceCapabilities: print out the surface specific capabilities
- SurfaceFormats: print out the supported surface specific formats
improved:
- InstanceExtensionProperties: print out the instance extensions alphabetically
- InstanceLayerProperties: removed an unused local function
- RayTracing: improved fence usage

samples/PhysicalDeviceMemoryProperties/PhysicalDeviceMemoryProperties.cpp

@@ -0,0 +1,106 @@
+// 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 : PhysicalDeviceMemoryProperties
+//                     Get memory properties per physical device.
+
+#include "../utils/utils.hpp"
+#include "vulkan/vulkan.hpp"
+#include <sstream>
+#include <vector>
+
+static char const* AppName = "PhysicalDeviceMemoryProperties";
+static char const* EngineName = "Vulkan.hpp";
+
+std::string formatSize(vk::DeviceSize size)
+{
+  std::ostringstream oss;
+  if (size < 1024)
+  {
+    oss << size << " B";
+  }
+  else if (size < 1024 * 1024)
+  {
+    oss << size / 1024.f << " KB";
+  }
+  else if (size < 1024 * 1024 * 1024)
+  {
+    oss << size / (1024.0f * 1024.0f) << " MB";
+  }
+  else
+  {
+    oss << size / (1024.0f * 1024.0f * 1024.0f) << " GB";
+  }
+  return oss.str();
+}
+
+int main(int /*argc*/, char ** /*argv*/)
+{
+  try
+  {
+    vk::UniqueInstance instance = vk::su::createInstance(AppName, EngineName);
+#if !defined(NDEBUG)
+    vk::UniqueDebugUtilsMessengerEXT debugUtilsMessenger = vk::su::createDebugUtilsMessenger(instance);
+#endif
+
+    // enumerate the physicalDevices
+    std::vector<vk::PhysicalDevice> physicalDevices = instance->enumeratePhysicalDevices();
+
+    /* VULKAN_KEY_START */
+
+    for (size_t i=0 ; i<physicalDevices.size() ; i++)
+    {
+      // some properties are only valid, if a corresponding extension is available!
+      std::vector<vk::ExtensionProperties> extensionProperties = physicalDevices[i].enumerateDeviceExtensionProperties();
+      bool containsMemoryBudget = vk::su::contains(extensionProperties, "VK_EXT_memory_budget");
+
+      std::cout << "PhysicalDevice " << i << "\n";
+      auto memoryProperties2 = physicalDevices[i].getMemoryProperties2<vk::PhysicalDeviceMemoryProperties2, vk::PhysicalDeviceMemoryBudgetPropertiesEXT>();
+      vk::PhysicalDeviceMemoryProperties const& memoryProperties = memoryProperties2.get<vk::PhysicalDeviceMemoryProperties2>().memoryProperties;
+      vk::PhysicalDeviceMemoryBudgetPropertiesEXT const& memoryBudgetProperties = memoryProperties2.get<vk::PhysicalDeviceMemoryBudgetPropertiesEXT>();
+      std::cout << "memoryHeapCount: " << memoryProperties.memoryHeapCount << "\n";
+      for (uint32_t j = 0; j < memoryProperties.memoryHeapCount; j++)
+      {
+        std::cout << "  " << j << ": size = " << formatSize(memoryProperties.memoryHeaps[j].size) << ", flags = " << vk::to_string(memoryProperties.memoryHeaps[j].flags) << "\n";
+        if (containsMemoryBudget)
+        {
+          std::cout << "     heapBudget = " << formatSize(memoryBudgetProperties.heapBudget[j]) << ", heapUsage = " << formatSize(memoryBudgetProperties.heapUsage[j]) << "\n";
+        }
+      }
+      std::cout << "memoryTypeCount: " << memoryProperties.memoryTypeCount << "\n";
+      for (uint32_t j = 0; j < memoryProperties.memoryTypeCount; j++)
+      {
+        std::cout << "  " << j << ": heapIndex = " << memoryProperties.memoryTypes[j].heapIndex << ", flags = " << vk::to_string(memoryProperties.memoryTypes[j].propertyFlags) << "\n";
+      }
+    }
+
+    /* VULKAN_KEY_END */
+  }
+  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;
+}