Introduce raii-compliant handle wrapper classes.

RAII_Samples/PhysicalDeviceGroups/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_PhysicalDeviceGroups)
+
+set(HEADERS
+)
+
+set(SOURCES
+  PhysicalDeviceGroups.cpp
+)
+
+source_group(headers FILES ${HEADERS})
+source_group(sources FILES ${SOURCES})
+
+add_executable(RAII_PhysicalDeviceGroups
+  ${HEADERS}
+  ${SOURCES}
+)
+
+set_target_properties(RAII_PhysicalDeviceGroups PROPERTIES FOLDER "RAII_Samples")
+target_link_libraries(RAII_PhysicalDeviceGroups PRIVATE utils)

RAII_Samples/PhysicalDeviceGroups/PhysicalDeviceGroups.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 : PhysicalDeviceGroups
+//                     Get the PhysicalDeviceGroups.
+
+#include "../utils/utils.hpp"
+#include "vulkan/vulkan.hpp"
+
+#include <vector>
+
+static char const * AppName    = "PhysicalDeviceGroups";
+static char const * EngineName = "Vulkan.hpp";
+
+int main( int /*argc*/, char ** /*argv*/ )
+{
+  try
+  {
+    std::unique_ptr<vk::raii::Context>  context = vk::raii::su::make_unique<vk::raii::Context>();
+    std::unique_ptr<vk::raii::Instance> instance =
+      vk::raii::su::makeUniqueInstance( *context, AppName, EngineName, {}, {}, VK_API_VERSION_1_1 );
+#if !defined( NDEBUG )
+    std::unique_ptr<vk::raii::DebugUtilsMessengerEXT> debugUtilsMessenger =
+      vk::raii::su::makeUniqueDebugUtilsMessengerEXT( *instance );
+#endif
+
+    /* VULKAN_KEY_START */
+
+    std::vector<vk::PhysicalDeviceGroupProperties> groupProperties = instance->enumeratePhysicalDeviceGroups();
+
+    std::cout << std::boolalpha;
+    for ( size_t i = 0; i < groupProperties.size(); i++ )
+    {
+      std::cout << "Group Properties " << i << " :\n";
+      std::cout << "\t"
+                << "physicalDeviceCount = " << groupProperties[i].physicalDeviceCount << "\n";
+      std::cout << "\t"
+                << "physicalDevices:\n";
+      for ( size_t j = 0; j < groupProperties[i].physicalDeviceCount; j++ )
+      {
+        std::unique_ptr<vk::raii::PhysicalDevice> physicalDevice = vk::raii::su::make_unique<vk::raii::PhysicalDevice>(
+          static_cast<VkPhysicalDevice>( groupProperties[i].physicalDevices[j] ), instance->getDispatcher() );
+        std::cout << "\t\t" << j << " : " << physicalDevice->getProperties().deviceName << "\n";
+      }
+      std::cout << "\t"
+                << "subsetAllocation    = " << !!groupProperties[i].subsetAllocation << "\n";
+      std::cout << "\n";
+
+      if ( 1 < groupProperties[i].physicalDeviceCount )
+      {
+        std::unique_ptr<vk::raii::PhysicalDevice> physicalDevice = vk::raii::su::make_unique<vk::raii::PhysicalDevice>(
+          static_cast<VkPhysicalDevice>( groupProperties[i].physicalDevices[0] ), instance->getDispatcher() );
+
+        // get the QueueFamilyProperties of the first PhysicalDevice
+        std::vector<vk::QueueFamilyProperties> queueFamilyProperties = physicalDevice->getQueueFamilyProperties();
+
+        // get the first index into queueFamiliyProperties which supports graphics
+        auto propertyIterator = std::find_if(
+          queueFamilyProperties.begin(), queueFamilyProperties.end(), []( vk::QueueFamilyProperties const & qfp ) {
+            return qfp.queueFlags & vk::QueueFlagBits::eGraphics;
+          } );
+        size_t graphicsQueueFamilyIndex = std::distance( queueFamilyProperties.begin(), propertyIterator );
+        assert( graphicsQueueFamilyIndex < queueFamilyProperties.size() );
+
+        // create a Device
+        float                     queuePriority = 0.0f;
+        vk::DeviceQueueCreateInfo deviceQueueCreateInfo(
+          {}, static_cast<uint32_t>( graphicsQueueFamilyIndex ), 1, &queuePriority );
+        vk::StructureChain<vk::DeviceCreateInfo, vk::DeviceGroupDeviceCreateInfo> deviceCreateInfoChain(
+          { {}, deviceQueueCreateInfo },
+          { groupProperties[i].physicalDeviceCount, groupProperties[i].physicalDevices } );
+
+        std::unique_ptr<vk::raii::Device> device =
+          vk::raii::su::make_unique<vk::raii::Device>( *physicalDevice, deviceCreateInfoChain.get<vk::DeviceCreateInfo>() );
+      }
+    }
+
+    /* VULKAN_KEY_END */
+  }
+  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;
+}