Vulkan-Hpp/samples/InstanceLayerExtensionProperties/InstanceLayerExtensionProperties.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 : InstanceLayerExtensionProperties
// Get list of global layers and their associated extensions, if any.
#include "vulkan/vulkan.hpp"
#include <iostream>
#include <sstream>
#include <vector>
struct PropertyData
{
PropertyData( vk::LayerProperties const & layerProperties_,
std::vector<vk::ExtensionProperties> const & extensionProperties_ )
: layerProperties( layerProperties_ ), extensionProperties( extensionProperties_ )
{}
vk::LayerProperties layerProperties;
std::vector<vk::ExtensionProperties> extensionProperties;
};
int main( int /*argc*/, char ** /*argv*/ )
{
try
{
std::vector<vk::LayerProperties> layerProperties = vk::enumerateInstanceLayerProperties();
/* VULKAN_KEY_START */
std::vector<PropertyData> propertyData;
propertyData.reserve( layerProperties.size() );
for ( auto const & layerProperty : layerProperties )
{
std::vector<vk::ExtensionProperties> extensionProperties =
vk::enumerateInstanceExtensionProperties( vk::Optional<const std::string>( layerProperty.layerName ) );
propertyData.push_back( PropertyData( layerProperty, extensionProperties ) );
}
/* VULKAN_KEY_END */
std::cout << "Instance Layers:" << std::endl;
if ( propertyData.empty() )
{
std::cout << "Set the environment variable VK_LAYER_PATH to point to the location of your layers" << std::endl;
}
else
{
for ( auto const & pd : propertyData )
{
std::cout << pd.layerProperties.layerName << std::endl;
if ( pd.extensionProperties.empty() )
{
std::cout << "Layer Extension: None";
}
else
{
for ( auto it = pd.extensionProperties.begin(); it != pd.extensionProperties.end(); ++it )
{
if ( it != pd.extensionProperties.begin() )
{
std::cout << ", ";
}
std::cout << it->extensionName << " Version " << it->specVersion;
}
}
std::cout << std::endl << std::endl;
}
}
std::cout << std::endl;
}
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;
}