121 lines
4.7 KiB
C++
121 lines
4.7 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_InitDepthBufferRAII
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// Initialize a depth buffer
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#include "../utils/utils.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::raii::Context context;
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vk::raii::Instance instance =
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vk::raii::su::makeInstance( context, AppName, EngineName, {}, vk::su::getInstanceExtensions() );
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#if !defined( NDEBUG )
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vk::raii::DebugUtilsMessengerEXT debugUtilsMessenger( instance, vk::su::makeDebugUtilsMessengerCreateInfoEXT() );
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#endif
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vk::raii::PhysicalDevice physicalDevice = std::move( vk::raii::PhysicalDevices( instance ).front() );
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vk::raii::su::SurfaceData surfaceData( instance, AppName, vk::Extent2D( 500, 500 ) );
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std::pair<uint32_t, uint32_t> graphicsAndPresentQueueFamilyIndex =
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vk::raii::su::findGraphicsAndPresentQueueFamilyIndex( physicalDevice, surfaceData.surface );
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vk::raii::Device device = vk::raii::su::makeDevice(
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physicalDevice, 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 = physicalDevice.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( {},
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vk::ImageType::e2D,
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depthFormat,
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vk::Extent3D( surfaceData.extent, 1 ),
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1,
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1,
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vk::SampleCountFlagBits::e1,
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tiling,
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vk::ImageUsageFlagBits::eDepthStencilAttachment );
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vk::raii::Image depthImage( device, imageCreateInfo );
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vk::PhysicalDeviceMemoryProperties memoryProperties = physicalDevice.getMemoryProperties();
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vk::MemoryRequirements memoryRequirements = depthImage.getMemoryRequirements();
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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 ) &&
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( ( memoryProperties.memoryTypes[i].propertyFlags & vk::MemoryPropertyFlagBits::eDeviceLocal ) ==
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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 != uint32_t( ~0 ) );
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vk::MemoryAllocateInfo memoryAllocateInfo( memoryRequirements.size, typeIndex );
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vk::raii::DeviceMemory depthMemory( device, memoryAllocateInfo );
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depthImage.bindMemory( *depthMemory, 0 );
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vk::ComponentMapping componentMapping(
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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::ImageViewCreateInfo imageViewCreateInfo(
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{}, *depthImage, vk::ImageViewType::e2D, depthFormat, componentMapping, subResourceRange );
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vk::raii::ImageView depthView( device, imageViewCreateInfo );
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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 ( 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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