mirror of
https://github.com/KhronosGroup/Vulkan-Hpp.git
synced 2024-10-14 16:32:17 +00:00
67 lines
3.0 KiB
C++
67 lines
3.0 KiB
C++
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// 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 : 04_InitCommandBuffer
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// Create command buffer
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#include "vulkan/vulkan.hpp"
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#include <iostream>
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static char const* AppName = "04_InitCommandBuffer";
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static char const* EngineName = "Vulkan.hpp";
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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::ApplicationInfo appInfo(AppName, 1, EngineName, 1, VK_API_VERSION_1_1);
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vk::UniqueInstance instance = vk::createInstanceUnique(vk::InstanceCreateInfo({}, &appInfo));
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std::vector<vk::PhysicalDevice> physicalDevices = instance->enumeratePhysicalDevices();
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assert(!physicalDevices.empty());
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std::vector<vk::QueueFamilyProperties> queueFamilyProperties = physicalDevices[0].getQueueFamilyProperties();
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size_t graphicsQueueFamilyIndex = std::distance(queueFamilyProperties.begin(),
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std::find_if(queueFamilyProperties.begin(),
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queueFamilyProperties.end(),
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[](vk::QueueFamilyProperties const& qfp) { return qfp.queueFlags & vk::QueueFlagBits::eGraphics; }));
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assert(graphicsQueueFamilyIndex < queueFamilyProperties.size());
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float queuePriority = 0.0f;
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vk::DeviceQueueCreateInfo deviceQueueCreateInfo({}, static_cast<uint32_t>(graphicsQueueFamilyIndex), 1, &queuePriority);
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vk::UniqueDevice device = physicalDevices[0].createDeviceUnique(vk::DeviceCreateInfo({}, 1, &deviceQueueCreateInfo));
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/* VULKAN_HPP_KEY_START */
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// create a UniqueCommandPool to allocate a CommandBuffer from
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vk::UniqueCommandPool commandPool = device->createCommandPoolUnique(vk::CommandPoolCreateInfo(vk::CommandPoolCreateFlags(), deviceQueueCreateInfo.queueFamilyIndex));
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// allocate a CommandBuffer from the CommandPool
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std::vector<vk::UniqueCommandBuffer> commandBuffers = device->allocateCommandBuffersUnique(vk::CommandBufferAllocateInfo(commandPool.get(), vk::CommandBufferLevel::ePrimary, 1));
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// Note: No need to explicitly free the CommandBuffer or destroy the CommandPool, as the corresponding free and destroy
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// functions are called by the destructor of the UniqueCommandBuffer and the UniqueCommandPool on leaving this scope.
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/* VULKAN_HPP_KEY_END */
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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 (...)
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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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