124 lines
4.7 KiB
C++
124 lines
4.7 KiB
C++
// Copyright(c) 2019, NVIDIA CORPORATION. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// VulkanHpp Samples : 16_Vulkan_1_1
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// Determine if the current system can use Vulkan 1.1 API features
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#include "../utils/utils.hpp"
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static char const * AppName = "16_Vulkan_1_1";
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static char const * EngineName = "Vulkan.hpp";
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int main( int /*argc*/, char ** /*argv*/ )
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{
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try
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{
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/* VULKAN_KEY_START */
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// Keep track of the major/minor version we can actually use
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uint16_t usingMajorVersion = 1;
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uint16_t usingMinorVersion = 0;
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std::string usingVersionString = "";
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// Set the desired version we want
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uint16_t desiredMajorVersion = 1;
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uint16_t desiredMinorVersion = 1;
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uint32_t desiredVersion = VK_MAKE_VERSION( desiredMajorVersion, desiredMinorVersion, 0 );
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std::string desiredVersionString = "";
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desiredVersionString += std::to_string( desiredMajorVersion );
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desiredVersionString += ".";
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desiredVersionString += std::to_string( desiredMinorVersion );
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#if ( VULKAN_HPP_DISPATCH_LOADER_DYNAMIC == 1 )
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// initialize the DipatchLoaderDynamic to use
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vk::DynamicLoader dl;
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PFN_vkGetInstanceProcAddr vkGetInstanceProcAddr = dl.getProcAddress<PFN_vkGetInstanceProcAddr>( "vkGetInstanceProcAddr" );
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VULKAN_HPP_DEFAULT_DISPATCHER.init( vkGetInstanceProcAddr );
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#endif
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// Determine what API version is available
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uint32_t apiVersion = vk::enumerateInstanceVersion();
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// Translate the version into major/minor for easier comparison
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uint32_t loader_major_version = VK_VERSION_MAJOR( apiVersion );
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uint32_t loader_minor_version = VK_VERSION_MINOR( apiVersion );
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std::cout << "Loader/Runtime support detected for Vulkan " << loader_major_version << "." << loader_minor_version << "\n";
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// Check current version against what we want to run
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if ( loader_major_version > desiredMajorVersion || ( loader_major_version == desiredMajorVersion && loader_minor_version >= desiredMinorVersion ) )
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{
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// Create the instance
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vk::Instance instance = vk::su::createInstance( AppName, EngineName, {}, vk::su::getInstanceExtensions(), desiredVersion );
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#if !defined( NDEBUG )
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vk::DebugUtilsMessengerEXT debugUtilsMessenger = instance.createDebugUtilsMessengerEXT( vk::su::makeDebugUtilsMessengerCreateInfoEXT() );
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#endif
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// Get the list of physical devices
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std::vector<vk::PhysicalDevice> physicalDevices = instance.enumeratePhysicalDevices();
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// Go through the list of physical devices and select only those that are capable of running the API version we
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// want.
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std::vector<vk::PhysicalDevice> desiredPhysicalDevices;
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std::copy_if( physicalDevices.begin(),
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physicalDevices.end(),
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std::back_inserter( desiredPhysicalDevices ),
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[desiredVersion]( vk::PhysicalDevice const & pd ) { return pd.getProperties().apiVersion >= desiredVersion; } );
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// If we have something in the desired version physical device list, we're good
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if ( desiredPhysicalDevices.size() > 0 )
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{
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usingMajorVersion = desiredMajorVersion;
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usingMinorVersion = desiredMinorVersion;
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}
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#if !defined( NDEBUG )
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instance.destroyDebugUtilsMessengerEXT( debugUtilsMessenger );
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#endif
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instance.destroy();
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}
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usingVersionString += std::to_string( usingMajorVersion );
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usingVersionString += ".";
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usingVersionString += std::to_string( usingMinorVersion );
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if ( usingMinorVersion < desiredMinorVersion )
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{
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std::cout << "Determined that this system can only use Vulkan API version " << usingVersionString << " instead of desired version "
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<< desiredVersionString << std::endl;
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}
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else
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{
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std::cout << "Determined that this system can run desired Vulkan API version " << desiredVersionString << std::endl;
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}
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/* VULKAN_KEY_END */
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}
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catch ( vk::SystemError & err )
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{
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std::cout << "vk::SystemError: " << err.what() << std::endl;
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exit( -1 );
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}
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catch ( std::exception & err )
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{
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std::cout << "std::exception: " << err.what() << std::endl;
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exit( -1 );
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}
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catch ( ... )
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{
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std::cout << "unknown error\n";
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exit( -1 );
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}
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return 0;
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}
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