Vulkan-Hpp/samples/09_InitDescriptorSet/09_InitDescriptorSet.cpp

79 lines
3.2 KiB
C++
Raw Normal View History

// Copyright(c) 2018-2019, 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 : 09_InitDescriptorSet
// Initialize a descriptor set
#include "../utils/math.hpp"
#include "../utils/utils.hpp"
#include "vulkan/vulkan.hpp"
#include <iostream>
#define GLM_FORCE_RADIANS
2018-08-17 15:47:48 +00:00
#pragma warning(disable:4201) // disable warning C4201: nonstandard extension used: nameless struct/union; needed to get glm/detail/type_vec?.hpp without warnings
#include <glm/gtc/matrix_transform.hpp>
static char const* AppName = "09_InitDescriptorSet";
static char const* EngineName = "Vulkan.hpp";
int main(int /*argc*/, char ** /*argv*/)
{
try
{
vk::UniqueInstance instance = vk::su::createInstance(AppName, EngineName);
#if !defined(NDEBUG)
vk::UniqueDebugReportCallbackEXT debugReportCallback = vk::su::createDebugReportCallback(instance);
#endif
vk::PhysicalDevice physicalDevice = instance->enumeratePhysicalDevices().front();
vk::UniqueDevice device = vk::su::createDevice(physicalDevice, vk::su::findGraphicsQueueFamilyIndex(physicalDevice.getQueueFamilyProperties()));
vk::su::BufferData uniformBufferData(physicalDevice, device, sizeof(glm::mat4x4), vk::BufferUsageFlagBits::eUniformBuffer);
vk::su::copyToDevice(device, uniformBufferData.deviceMemory, vk::su::createModelViewProjectionClipMatrix(vk::Extent2D(0, 0)));
vk::UniqueDescriptorSetLayout descriptorSetLayout = vk::su::createDescriptorSetLayout(device, { {vk::DescriptorType::eUniformBuffer, 1, vk::ShaderStageFlagBits::eVertex} });
/* VULKAN_HPP_KEY_START */
// create a descriptor pool
vk::DescriptorPoolSize poolSize(vk::DescriptorType::eUniformBuffer, 1);
vk::UniqueDescriptorPool descriptorPool = device->createDescriptorPoolUnique(vk::DescriptorPoolCreateInfo(vk::DescriptorPoolCreateFlagBits::eFreeDescriptorSet, 1, 1, &poolSize));
// allocate a descriptor set
vk::UniqueDescriptorSet descriptorSet = std::move(device->allocateDescriptorSetsUnique(vk::DescriptorSetAllocateInfo(*descriptorPool, 1, &*descriptorSetLayout)).front());
vk::DescriptorBufferInfo descriptorBufferInfo(uniformBufferData.buffer.get(), 0, sizeof(glm::mat4x4));
device->updateDescriptorSets(vk::WriteDescriptorSet(descriptorSet.get(), 0, 0, 1, vk::DescriptorType::eUniformBuffer, nullptr, &descriptorBufferInfo), {});
/* 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;
}