106 lines
4.1 KiB
C++
106 lines
4.1 KiB
C++
// 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 : PhysicalDeviceGroups
|
|
// Get the PhysicalDeviceGroups.
|
|
|
|
#include "../utils/utils.hpp"
|
|
#include "vulkan/vulkan.hpp"
|
|
|
|
#include <vector>
|
|
|
|
static char const * AppName = "PhysicalDeviceGroups";
|
|
static char const * EngineName = "Vulkan.hpp";
|
|
|
|
int main( int /*argc*/, char ** /*argv*/ )
|
|
{
|
|
try
|
|
{
|
|
vk::raii::Context context;
|
|
vk::raii::Instance instance =
|
|
vk::raii::su::makeInstance( context, AppName, EngineName, {}, {}, VK_API_VERSION_1_1 );
|
|
#if !defined( NDEBUG )
|
|
vk::raii::DebugUtilsMessengerEXT debugUtilsMessenger( instance, vk::su::makeDebugUtilsMessengerCreateInfoEXT() );
|
|
#endif
|
|
|
|
/* VULKAN_KEY_START */
|
|
|
|
std::vector<vk::PhysicalDeviceGroupProperties> groupProperties = instance.enumeratePhysicalDeviceGroups();
|
|
|
|
std::cout << std::boolalpha;
|
|
for ( size_t i = 0; i < groupProperties.size(); i++ )
|
|
{
|
|
std::cout << "Group Properties " << i << " :\n";
|
|
std::cout << "\t"
|
|
<< "physicalDeviceCount = " << groupProperties[i].physicalDeviceCount << "\n";
|
|
std::cout << "\t"
|
|
<< "physicalDevices:\n";
|
|
for ( size_t j = 0; j < groupProperties[i].physicalDeviceCount; j++ )
|
|
{
|
|
vk::raii::PhysicalDevice physicalDevice(
|
|
instance, static_cast<VkPhysicalDevice>( groupProperties[i].physicalDevices[j] ) );
|
|
std::cout << "\t\t" << j << " : " << physicalDevice.getProperties().deviceName << "\n";
|
|
}
|
|
std::cout << "\t"
|
|
<< "subsetAllocation = " << !!groupProperties[i].subsetAllocation << "\n";
|
|
std::cout << "\n";
|
|
|
|
if ( 1 < groupProperties[i].physicalDeviceCount )
|
|
{
|
|
vk::raii::PhysicalDevice physicalDevice(
|
|
instance, static_cast<VkPhysicalDevice>( groupProperties[i].physicalDevices[0] ) );
|
|
|
|
// get the QueueFamilyProperties of the first PhysicalDevice
|
|
std::vector<vk::QueueFamilyProperties> queueFamilyProperties = physicalDevice.getQueueFamilyProperties();
|
|
|
|
// get the first index into queueFamiliyProperties which supports graphics
|
|
auto propertyIterator = std::find_if( queueFamilyProperties.begin(),
|
|
queueFamilyProperties.end(),
|
|
[]( vk::QueueFamilyProperties const & qfp )
|
|
{ return qfp.queueFlags & vk::QueueFlagBits::eGraphics; } );
|
|
size_t graphicsQueueFamilyIndex = std::distance( queueFamilyProperties.begin(), propertyIterator );
|
|
assert( graphicsQueueFamilyIndex < queueFamilyProperties.size() );
|
|
|
|
// create a Device
|
|
float queuePriority = 0.0f;
|
|
vk::DeviceQueueCreateInfo deviceQueueCreateInfo(
|
|
{}, static_cast<uint32_t>( graphicsQueueFamilyIndex ), 1, &queuePriority );
|
|
vk::StructureChain<vk::DeviceCreateInfo, vk::DeviceGroupDeviceCreateInfo> deviceCreateInfoChain(
|
|
{ {}, deviceQueueCreateInfo },
|
|
{ groupProperties[i].physicalDeviceCount, groupProperties[i].physicalDevices } );
|
|
|
|
vk::raii::Device device( physicalDevice, deviceCreateInfoChain.get<vk::DeviceCreateInfo>() );
|
|
}
|
|
}
|
|
|
|
/* 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;
|
|
}
|