116 lines
4.2 KiB
C++
116 lines
4.2 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 : PhysicalDeviceMemoryProperties
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// Get memory properties per physical device.
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#include "../utils/utils.hpp"
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#include <sstream>
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#include <vector>
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#include <vulkan/vulkan_to_string.hpp>
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static char const * AppName = "PhysicalDeviceMemoryProperties";
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static char const * EngineName = "Vulkan.hpp";
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std::string formatSize( vk::DeviceSize size )
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{
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std::ostringstream oss;
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if ( size < 1024 )
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{
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oss << size << " B";
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}
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else if ( size < 1024 * 1024 )
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{
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oss << size / 1024.f << " KB";
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}
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else if ( size < 1024 * 1024 * 1024 )
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{
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oss << size / ( 1024.0f * 1024.0f ) << " MB";
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}
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else
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{
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oss << size / ( 1024.0f * 1024.0f * 1024.0f ) << " GB";
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}
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return oss.str();
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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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vk::Instance instance = vk::su::createInstance( AppName, EngineName, {}, {}, VK_API_VERSION_1_1 );
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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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// enumerate the physicalDevices
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std::vector<vk::PhysicalDevice> physicalDevices = instance.enumeratePhysicalDevices();
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/* VULKAN_KEY_START */
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for ( size_t i = 0; i < physicalDevices.size(); i++ )
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{
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// some properties are only valid, if a corresponding extension is available!
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std::vector<vk::ExtensionProperties> extensionProperties = physicalDevices[i].enumerateDeviceExtensionProperties();
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bool containsMemoryBudget = vk::su::contains( extensionProperties, "VK_EXT_memory_budget" );
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std::cout << "PhysicalDevice " << i << "\n";
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auto memoryProperties2 = physicalDevices[i].getMemoryProperties2<vk::PhysicalDeviceMemoryProperties2, vk::PhysicalDeviceMemoryBudgetPropertiesEXT>();
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vk::PhysicalDeviceMemoryProperties const & memoryProperties = memoryProperties2.get<vk::PhysicalDeviceMemoryProperties2>().memoryProperties;
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vk::PhysicalDeviceMemoryBudgetPropertiesEXT const & memoryBudgetProperties = memoryProperties2.get<vk::PhysicalDeviceMemoryBudgetPropertiesEXT>();
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std::cout << "memoryHeapCount: " << memoryProperties.memoryHeapCount << "\n";
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for ( uint32_t j = 0; j < memoryProperties.memoryHeapCount; j++ )
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{
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std::cout << " " << j << ": size = " << formatSize( memoryProperties.memoryHeaps[j].size )
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<< ", flags = " << vk::to_string( memoryProperties.memoryHeaps[j].flags ) << "\n";
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if ( containsMemoryBudget )
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{
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std::cout << " heapBudget = " << formatSize( memoryBudgetProperties.heapBudget[j] )
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<< ", heapUsage = " << formatSize( memoryBudgetProperties.heapUsage[j] ) << "\n";
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}
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}
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std::cout << "memoryTypeCount: " << memoryProperties.memoryTypeCount << "\n";
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for ( uint32_t j = 0; j < memoryProperties.memoryTypeCount; j++ )
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{
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std::cout << " " << j << ": heapIndex = " << memoryProperties.memoryTypes[j].heapIndex
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<< ", flags = " << vk::to_string( memoryProperties.memoryTypes[j].propertyFlags ) << "\n";
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}
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}
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/* VULKAN_KEY_END */
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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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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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