Introduce raii-compliant handle wrapper classes.

RAII_Samples/16_Vulkan_1_1/16_Vulkan_1_1.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 : 16_Vulkan_1_1
+//                     Determine if the current system can use Vulkan 1.1 API features
+
+#include "../utils/utils.hpp"
+
+static char const * AppName    = "16_Vulkan_1_1";
+static char const * EngineName = "Vulkan.hpp";
+
+int main( int /*argc*/, char ** /*argv*/ )
+{
+  try
+  {
+    /* VULKAN_KEY_START */
+
+    // Keep track of the major/minor version we can actually use
+    uint16_t    usingMajorVersion  = 1;
+    uint16_t    usingMinorVersion  = 0;
+    std::string usingVersionString = "";
+
+    // Set the desired version we want
+    uint16_t    desiredMajorVersion  = 1;
+    uint16_t    desiredMinorVersion  = 1;
+    uint32_t    desiredVersion       = VK_MAKE_VERSION( desiredMajorVersion, desiredMinorVersion, 0 );
+    std::string desiredVersionString = "";
+    desiredVersionString += std::to_string( desiredMajorVersion );
+    desiredVersionString += ".";
+    desiredVersionString += std::to_string( desiredMinorVersion );
+
+    // initialize the vulkan context
+    std::unique_ptr<vk::raii::Context> context = vk::raii::su::make_unique<vk::raii::Context>();
+
+    // Determine what API version is available
+    uint32_t apiVersion = context->enumerateInstanceVersion();
+
+    // Translate the version into major/minor for easier comparison
+    uint32_t loader_major_version = VK_VERSION_MAJOR( apiVersion );
+    uint32_t loader_minor_version = VK_VERSION_MINOR( apiVersion );
+    std::cout << "Loader/Runtime support detected for Vulkan " << loader_major_version << "." << loader_minor_version
+              << "\n";
+
+    // Check current version against what we want to run
+    if ( loader_major_version > desiredMajorVersion ||
+         ( loader_major_version == desiredMajorVersion && loader_minor_version >= desiredMinorVersion ) )
+    {
+      // Create the instance
+      std::unique_ptr<vk::raii::Instance> instance =
+        vk::raii::su::makeUniqueInstance( *context, AppName, EngineName, {}, vk::su::getInstanceExtensions() );
+#if !defined( NDEBUG )
+      std::unique_ptr<vk::raii::DebugUtilsMessengerEXT> debugUtilsMessenger =
+        vk::raii::su::make_unique<vk::raii::DebugUtilsMessengerEXT>( *instance, vk::su::makeDebugUtilsMessengerCreateInfoEXT() );
+#endif
+
+      // Get the list of physical devices
+      vk::raii::PhysicalDevices physicalDevices( *instance );
+
+      // Go through the list of physical devices and select only those that are capable of running the API version we
+      // want.
+      std::vector<std::unique_ptr<vk::raii::PhysicalDevice>> desiredPhysicalDevices;
+      for ( auto & pdh : physicalDevices )
+      {
+        if ( desiredVersion <= pdh.getProperties().apiVersion )
+        {
+          desiredPhysicalDevices.push_back( vk::raii::su::make_unique<vk::raii::PhysicalDevice>( std::move( pdh ) ) );
+        }
+      }
+
+      // If we have something in the desired version physical device list, we're good
+      if ( desiredPhysicalDevices.size() > 0 )
+      {
+        usingMajorVersion = desiredMajorVersion;
+        usingMinorVersion = desiredMinorVersion;
+      }
+    }
+
+    usingVersionString += std::to_string( usingMajorVersion );
+    usingVersionString += ".";
+    usingVersionString += std::to_string( usingMinorVersion );
+
+    if ( usingMinorVersion < desiredMinorVersion )
+    {
+      std::cout << "Determined that this system can only use Vulkan API version " << usingVersionString
+                << " instead of desired version " << desiredVersionString << std::endl;
+    }
+    else
+    {
+      std::cout << "Determined that this system can run desired Vulkan API version " << desiredVersionString
+                << std::endl;
+    }
+
+    /* 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;
+}

RAII_Samples/16_Vulkan_1_1/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_16_Vulkan_1_1)
+
+set(HEADERS
+)
+
+set(SOURCES
+  16_Vulkan_1_1.cpp
+)
+
+source_group(headers FILES ${HEADERS})
+source_group(sources FILES ${SOURCES})
+
+add_executable(RAII_16_Vulkan_1_1
+  ${HEADERS}
+  ${SOURCES}
+)
+
+set_target_properties(RAII_16_Vulkan_1_1 PROPERTIES FOLDER "RAII_Samples")
+target_link_libraries(RAII_16_Vulkan_1_1 PRIVATE utils)