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>
static char const* AppName = "InstanceLayerExtensionProperties";
static char const* EngineName = "Vulkan.hpp";
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(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::runtime_error& err)
{
std::cout << "std::runtime_error: " << err.what() << std::endl;
exit(-1);
}
catch (...)
{
std::cout << "unknown error\n";
exit(-1);
}
return 0;
}