Vulkan-Hpp/samples/08_InitPipelineLayout/08_InitPipelineLayout.cpp

78 lines
3.2 KiB
C++
Raw Normal View History

// Copyright(c) 2018, 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 : 08_InitPipelineLayout
// Initialize a descriptor and pipeline layout
#include <iostream>
#include "vulkan/vulkan.hpp"
static char const* AppName = "08_InitPipelineLayout";
static char const* EngineName = "Vulkan.hpp";
int main(int argc, char *argv[])
{
try
{
vk::ApplicationInfo appInfo(AppName, 1, EngineName, 1, VK_API_VERSION_1_1);
vk::InstanceCreateInfo instanceCreateInfo({}, &appInfo);
vk::UniqueInstance instance = vk::createInstanceUnique(instanceCreateInfo);
std::vector<vk::PhysicalDevice> physicalDevices = instance->enumeratePhysicalDevices();
assert(!physicalDevices.empty());
// determine a queueFamilyIndex that supports graphics
std::vector<vk::QueueFamilyProperties> queueFamilyProperties = physicalDevices[0].getQueueFamilyProperties();
size_t graphicsQueueFamilyIndex = std::distance(queueFamilyProperties.begin(),
std::find_if(queueFamilyProperties.begin(),
queueFamilyProperties.end(),
[](vk::QueueFamilyProperties const& qfp) { return qfp.queueFlags & vk::QueueFlagBits::eGraphics; }));
// create a device
float queuePriority = 0.0f;
vk::DeviceQueueCreateInfo deviceQueueCreateInfo({}, static_cast<uint32_t>(graphicsQueueFamilyIndex), 1, &queuePriority);
vk::UniqueDevice device = physicalDevices[0].createDeviceUnique(vk::DeviceCreateInfo({}, 1, &deviceQueueCreateInfo, 0, nullptr));
/* VULKAN_HPP_KEY_START */
// create a DescriptorSetLayout
vk::DescriptorSetLayoutBinding descriptorSetLayoutBinding(0, vk::DescriptorType::eUniformBuffer, 1, vk::ShaderStageFlagBits::eVertex);
vk::UniqueDescriptorSetLayout descriptorSetLayout = device->createDescriptorSetLayoutUnique(vk::DescriptorSetLayoutCreateInfo(vk::DescriptorSetLayoutCreateFlags(), 1, &descriptorSetLayoutBinding));
// create a PipelineLayout using that DescriptorSetLayout
vk::UniquePipelineLayout pipelineLayout = device->createPipelineLayoutUnique(vk::PipelineLayoutCreateInfo(vk::PipelineLayoutCreateFlags(), 1, &descriptorSetLayout.get()));
// Note: No need to explicitly destroy the layouts, as the corresponding destroy function is
// called by the destructor of the UniqueDescriptorSetLayout or UniquePipelineLayout, respectively, on leaving this scope.
/* VULKAN_HPP_KEY_END */
}
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;
}