78 lines
2.5 KiB
C++
78 lines
2.5 KiB
C++
// Copyright(c) 2018, 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 : DispatchLoaderDynamic
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// Compile test on DispatchLoaderDynamic functions
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#include <map>
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#include <vector>
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#include <cassert>
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#include <iostream>
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#ifdef VULKAN_HPP_USE_CXX_MODULE
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import vulkan_hpp;
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#else
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# include <vulkan/vulkan.hpp>
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#endif
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namespace vk {
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namespace detail {
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DispatchLoaderDynamic defaultDispatchLoaderDynamic;
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}
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}
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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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// three equivalent minimal initializations of the default dispatcher... you just need to use one of them
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// initialize minimal set of function pointers
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vk::detail::defaultDispatchLoaderDynamic.init();
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// the same initialization, now with explicitly providing a DynamicLoader
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vk::detail::DynamicLoader dl;
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vk::detail::defaultDispatchLoaderDynamic.init( dl );
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// the same initialization, now with explicitly providing the initial function pointer
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PFN_vkGetInstanceProcAddr getInstanceProcAddr = dl.getProcAddress<PFN_vkGetInstanceProcAddr>( "vkGetInstanceProcAddr" );
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vk::detail::defaultDispatchLoaderDynamic.init( getInstanceProcAddr );
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vk::Instance instance = vk::createInstance( {}, nullptr );
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// initialize function pointers for instance
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vk::detail::defaultDispatchLoaderDynamic.init( instance );
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// create a dispatcher, based on additional vkDevice/vkGetDeviceProcAddr
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std::vector<vk::PhysicalDevice> physicalDevices = instance.enumeratePhysicalDevices();
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assert( !physicalDevices.empty() );
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vk::Device device = physicalDevices[0].createDevice( {}, nullptr );
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// optional function pointer specialization for device
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vk::detail::defaultDispatchLoaderDynamic.init( device );
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}
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catch ( vk::SystemError const & 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 ( ... )
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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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