mirror of
https://github.com/KhronosGroup/Vulkan-Hpp.git
synced 2024-10-14 16:32:17 +00:00
110 lines
4.4 KiB
C++
110 lines
4.4 KiB
C++
// Copyright(c) 2018-2019, 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 : 06_InitDepthBuffer
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// Initialize a depth buffer
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#include "../utils/utils.hpp"
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#include "vulkan/vulkan.hpp"
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#include <iostream>
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static char const* AppName = "06_InitDepthBuffer";
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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::UniqueInstance instance = vk::su::createInstance(AppName, EngineName, vk::su::getInstanceExtensions());
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#if !defined(NDEBUG)
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vk::UniqueDebugReportCallbackEXT debugReportCallback = vk::su::createDebugReportCallback(instance);
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#endif
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std::vector<vk::PhysicalDevice> physicalDevices = instance->enumeratePhysicalDevices();
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assert(!physicalDevices.empty());
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vk::su::SurfaceData surfaceData(instance, AppName, AppName, vk::Extent2D(500, 500));
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std::pair<uint32_t, uint32_t> graphicsAndPresentQueueFamilyIndex = vk::su::findGraphicsAndPresentQueueFamilyIndex(physicalDevices[0], surfaceData.surface);
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vk::UniqueDevice device = vk::su::createDevice(physicalDevices[0], graphicsAndPresentQueueFamilyIndex.first, vk::su::getDeviceExtensions());
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/* VULKAN_HPP_KEY_START */
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const vk::Format depthFormat = vk::Format::eD16Unorm;
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vk::FormatProperties formatProperties = physicalDevices[0].getFormatProperties(depthFormat);
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vk::ImageTiling tiling;
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if (formatProperties.linearTilingFeatures & vk::FormatFeatureFlagBits::eDepthStencilAttachment)
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{
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tiling = vk::ImageTiling::eLinear;
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}
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else if (formatProperties.optimalTilingFeatures & vk::FormatFeatureFlagBits::eDepthStencilAttachment)
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{
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tiling = vk::ImageTiling::eOptimal;
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}
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else
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{
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throw std::runtime_error("DepthStencilAttachment is not supported for D16Unorm depth format.");
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}
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vk::ImageCreateInfo imageCreateInfo(vk::ImageCreateFlags(), vk::ImageType::e2D, depthFormat, vk::Extent3D(surfaceData.extent, 1), 1, 1, vk::SampleCountFlagBits::e1, tiling, vk::ImageUsageFlagBits::eDepthStencilAttachment);
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vk::UniqueImage depthImage = device->createImageUnique(imageCreateInfo);
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vk::PhysicalDeviceMemoryProperties memoryProperties = physicalDevices[0].getMemoryProperties();
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vk::MemoryRequirements memoryRequirements = device->getImageMemoryRequirements(depthImage.get());
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uint32_t typeBits = memoryRequirements.memoryTypeBits;
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uint32_t typeIndex = uint32_t(~0);
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for (uint32_t i = 0; i < memoryProperties.memoryTypeCount; i++)
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{
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if ((typeBits & 1) && ((memoryProperties.memoryTypes[i].propertyFlags & vk::MemoryPropertyFlagBits::eDeviceLocal) == vk::MemoryPropertyFlagBits::eDeviceLocal))
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{
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typeIndex = i;
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break;
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}
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typeBits >>= 1;
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}
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assert(typeIndex != ~0);
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vk::UniqueDeviceMemory depthMemory = device->allocateMemoryUnique(vk::MemoryAllocateInfo(memoryRequirements.size, typeIndex));
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device->bindImageMemory(depthImage.get(), depthMemory.get(), 0);
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vk::ComponentMapping componentMapping(vk::ComponentSwizzle::eR, vk::ComponentSwizzle::eG, vk::ComponentSwizzle::eB, vk::ComponentSwizzle::eA);
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vk::ImageSubresourceRange subResourceRange(vk::ImageAspectFlagBits::eDepth, 0, 1, 0, 1);
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vk::UniqueImageView depthView = device->createImageViewUnique(vk::ImageViewCreateInfo(vk::ImageViewCreateFlags(), depthImage.get(), vk::ImageViewType::e2D, depthFormat, componentMapping, subResourceRange));
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/* VULKAN_HPP_KEY_END */
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#if defined(VK_USE_PLATFORM_WIN32_KHR)
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DestroyWindow(surfaceData.window);
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#else
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#pragma error "unhandled platform"
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#endif
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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::runtime_error err)
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{
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std::cout << "std::runtime_error: " << 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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