Vulkan-Hpp/samples/PushDescriptors/PushDescriptors.cpp

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// Copyright(c) 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 : PushDescriptors
// Use Push Descriptors to Draw Textured Cube
#include "../utils/geometries.hpp"
#include "../utils/math.hpp"
#include "../utils/shaders.hpp"
#include "../utils/utils.hpp"
#include "SPIRV/GlslangToSpv.h"
#include "vulkan/vulkan.hpp"
#include <iostream>
#include <thread>
static char const * AppName = "PushDescriptors";
static char const * EngineName = "Vulkan.hpp";
int main( int /*argc*/, char ** /*argv*/ )
{
try
{
#if ( VULKAN_HPP_DISPATCH_LOADER_DYNAMIC == 1 )
// initialize the DipatchLoaderDynamic to use
static vk::DynamicLoader dl;
PFN_vkGetInstanceProcAddr vkGetInstanceProcAddr =
dl.getProcAddress<PFN_vkGetInstanceProcAddr>( "vkGetInstanceProcAddr" );
VULKAN_HPP_DEFAULT_DISPATCHER.init( vkGetInstanceProcAddr );
#endif
/* VULKAN_KEY_START */
// To use PUSH_DESCRIPTOR, you must also specify GET_PHYSICAL_DEVICE_PROPERTIES_2
std::vector<vk::ExtensionProperties> extensionProperties = vk::enumerateInstanceExtensionProperties();
if ( std::find_if( extensionProperties.begin(), extensionProperties.end(), []( vk::ExtensionProperties ep ) {
return ( strcmp( ep.extensionName, VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME ) == 0 );
} ) == extensionProperties.end() )
{
std::cout << "No GET_PHYSICAL_DEVICE_PROPERTIES_2 extension" << std::endl;
return 0;
}
std::vector<std::string> instanceExtensions = vk::su::getInstanceExtensions();
instanceExtensions.push_back( VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME );
vk::UniqueInstance instance = vk::su::createInstance( AppName, EngineName, {}, instanceExtensions );
#if !defined( NDEBUG )
vk::UniqueDebugUtilsMessengerEXT debugUtilsMessenger = vk::su::createDebugUtilsMessenger( instance );
#endif
vk::PhysicalDevice physicalDevice = instance->enumeratePhysicalDevices().front();
// Once instance is created, need to make sure the extension is available
extensionProperties = physicalDevice.enumerateDeviceExtensionProperties();
if ( std::find_if( extensionProperties.begin(), extensionProperties.end(), []( vk::ExtensionProperties ep ) {
return ( strcmp( ep.extensionName, VK_KHR_PUSH_DESCRIPTOR_EXTENSION_NAME ) == 0 );
} ) == extensionProperties.end() )
{
std::cout << "No extension for push descriptors" << std::endl;
return 0;
}
std::vector<std::string> deviceExtensions = vk::su::getDeviceExtensions();
deviceExtensions.push_back( VK_KHR_PUSH_DESCRIPTOR_EXTENSION_NAME );
vk::su::SurfaceData surfaceData( instance, AppName, vk::Extent2D( 500, 500 ) );
std::pair<uint32_t, uint32_t> graphicsAndPresentQueueFamilyIndex =
vk::su::findGraphicsAndPresentQueueFamilyIndex( physicalDevice, *surfaceData.surface );
vk::UniqueDevice device =
vk::su::createDevice( physicalDevice, graphicsAndPresentQueueFamilyIndex.first, deviceExtensions );
vk::UniqueCommandPool commandPool = vk::su::createCommandPool( device, graphicsAndPresentQueueFamilyIndex.first );
vk::UniqueCommandBuffer commandBuffer = std::move( device
->allocateCommandBuffersUnique( vk::CommandBufferAllocateInfo(
commandPool.get(), vk::CommandBufferLevel::ePrimary, 1 ) )
.front() );
vk::Queue graphicsQueue = device->getQueue( graphicsAndPresentQueueFamilyIndex.first, 0 );
vk::Queue presentQueue = device->getQueue( graphicsAndPresentQueueFamilyIndex.second, 0 );
vk::su::SwapChainData swapChainData( physicalDevice,
device,
*surfaceData.surface,
surfaceData.extent,
vk::ImageUsageFlagBits::eColorAttachment |
vk::ImageUsageFlagBits::eTransferSrc,
vk::UniqueSwapchainKHR(),
graphicsAndPresentQueueFamilyIndex.first,
graphicsAndPresentQueueFamilyIndex.second );
vk::su::DepthBufferData depthBufferData( physicalDevice, device, vk::Format::eD16Unorm, surfaceData.extent );
vk::su::TextureData textureData( physicalDevice, device );
commandBuffer->begin( vk::CommandBufferBeginInfo() );
textureData.setImage( device, commandBuffer, vk::su::CheckerboardImageGenerator() );
vk::su::BufferData uniformBufferData(
physicalDevice, device, sizeof( glm::mat4x4 ), vk::BufferUsageFlagBits::eUniformBuffer );
vk::su::copyToDevice(
device, uniformBufferData.deviceMemory, vk::su::createModelViewProjectionClipMatrix( surfaceData.extent ) );
// Need to specify that descriptor set layout will be for push descriptors
vk::UniqueDescriptorSetLayout descriptorSetLayout = vk::su::createDescriptorSetLayout(
device,
{ { vk::DescriptorType::eUniformBuffer, 1, vk::ShaderStageFlagBits::eVertex },
{ vk::DescriptorType::eCombinedImageSampler, 1, vk::ShaderStageFlagBits::eFragment } },
vk::DescriptorSetLayoutCreateFlagBits::ePushDescriptorKHR );
vk::UniquePipelineLayout pipelineLayout = device->createPipelineLayoutUnique(
vk::PipelineLayoutCreateInfo( vk::PipelineLayoutCreateFlags(), *descriptorSetLayout ) );
vk::UniqueRenderPass renderPass = vk::su::createRenderPass(
device,
vk::su::pickSurfaceFormat( physicalDevice.getSurfaceFormatsKHR( surfaceData.surface.get() ) ).format,
depthBufferData.format );
glslang::InitializeProcess();
vk::UniqueShaderModule vertexShaderModule =
vk::su::createShaderModule( device, vk::ShaderStageFlagBits::eVertex, vertexShaderText_PT_T );
vk::UniqueShaderModule fragmentShaderModule =
vk::su::createShaderModule( device, vk::ShaderStageFlagBits::eFragment, fragmentShaderText_T_C );
glslang::FinalizeProcess();
std::vector<vk::UniqueFramebuffer> framebuffers = vk::su::createFramebuffers(
device, renderPass, swapChainData.imageViews, depthBufferData.imageView, surfaceData.extent );
vk::su::BufferData vertexBufferData(
physicalDevice, device, sizeof( texturedCubeData ), vk::BufferUsageFlagBits::eVertexBuffer );
vk::su::copyToDevice( device,
vertexBufferData.deviceMemory,
texturedCubeData,
sizeof( texturedCubeData ) / sizeof( texturedCubeData[0] ) );
vk::UniquePipelineCache pipelineCache = device->createPipelineCacheUnique( vk::PipelineCacheCreateInfo() );
vk::UniquePipeline graphicsPipeline =
vk::su::createGraphicsPipeline( device,
pipelineCache,
std::make_pair( *vertexShaderModule, nullptr ),
std::make_pair( *fragmentShaderModule, nullptr ),
sizeof( texturedCubeData[0] ),
{ { vk::Format::eR32G32B32A32Sfloat, 0 }, { vk::Format::eR32G32Sfloat, 16 } },
vk::FrontFace::eClockwise,
true,
pipelineLayout,
renderPass );
// Get the index of the next available swapchain image:
vk::UniqueSemaphore imageAcquiredSemaphore = device->createSemaphoreUnique( vk::SemaphoreCreateInfo() );
vk::ResultValue<uint32_t> currentBuffer = device->acquireNextImageKHR(
swapChainData.swapChain.get(), vk::su::FenceTimeout, imageAcquiredSemaphore.get(), nullptr );
assert( currentBuffer.result == vk::Result::eSuccess );
assert( currentBuffer.value < framebuffers.size() );
std::array<vk::ClearValue, 2> clearValues;
2020-05-18 12:02:37 +00:00
clearValues[0].color = vk::ClearColorValue( std::array<float, 4>( { { 0.2f, 0.2f, 0.2f, 0.2f } } ) );
clearValues[1].depthStencil = vk::ClearDepthStencilValue( 1.0f, 0 );
vk::RenderPassBeginInfo renderPassBeginInfo( renderPass.get(),
framebuffers[currentBuffer.value].get(),
vk::Rect2D( vk::Offset2D( 0, 0 ), surfaceData.extent ),
clearValues );
commandBuffer->beginRenderPass( renderPassBeginInfo, vk::SubpassContents::eInline );
commandBuffer->bindPipeline( vk::PipelineBindPoint::eGraphics, graphicsPipeline.get() );
vk::DescriptorBufferInfo bufferInfo( uniformBufferData.buffer.get(), 0, sizeof( glm::mat4x4 ) );
vk::DescriptorImageInfo imageInfo( textureData.textureSampler.get(),
textureData.imageData->imageView.get(),
vk::ImageLayout::eShaderReadOnlyOptimal );
vk::WriteDescriptorSet writeDescriptorSets[2] = {
vk::WriteDescriptorSet( {}, 0, 0, vk::DescriptorType::eUniformBuffer, {}, bufferInfo ),
vk::WriteDescriptorSet( {}, 1, 0, vk::DescriptorType::eCombinedImageSampler, imageInfo )
};
// this call is from an extension and needs the dynamic dispatcher !!
commandBuffer->pushDescriptorSetKHR(
vk::PipelineBindPoint::eGraphics, *pipelineLayout, 0, { 2, writeDescriptorSets } );
commandBuffer->bindVertexBuffers( 0, *vertexBufferData.buffer, { 0 } );
commandBuffer->setViewport( 0,
vk::Viewport( 0.0f,
0.0f,
static_cast<float>( surfaceData.extent.width ),
static_cast<float>( surfaceData.extent.height ),
0.0f,
1.0f ) );
commandBuffer->setScissor( 0, vk::Rect2D( vk::Offset2D( 0, 0 ), surfaceData.extent ) );
commandBuffer->draw( 12 * 3, 1, 0, 0 );
commandBuffer->endRenderPass();
commandBuffer->end();
vk::UniqueFence drawFence = device->createFenceUnique( vk::FenceCreateInfo() );
vk::PipelineStageFlags waitDestinationStageMask( vk::PipelineStageFlagBits::eColorAttachmentOutput );
vk::SubmitInfo submitInfo( *imageAcquiredSemaphore, waitDestinationStageMask, *commandBuffer );
graphicsQueue.submit( submitInfo, drawFence.get() );
while ( vk::Result::eTimeout == device->waitForFences( drawFence.get(), VK_TRUE, vk::su::FenceTimeout ) )
;
vk::Result result =
presentQueue.presentKHR( vk::PresentInfoKHR( {}, *swapChainData.swapChain, currentBuffer.value ) );
switch ( result )
{
case vk::Result::eSuccess: break;
case vk::Result::eSuboptimalKHR:
std::cout << "vk::Queue::presentKHR returned vk::Result::eSuboptimalKHR !\n";
break;
default: assert( false ); // an unexpected result is returned !
}
std::this_thread::sleep_for( std::chrono::milliseconds( 1000 ) );
/* VULKAN_KEY_END */
device->waitIdle();
}
catch ( vk::SystemError & err )
{
std::cout << "vk::SystemError: " << err.what() << std::endl;
exit( -1 );
}
catch ( std::exception & err )
{
std::cout << "std::exception: " << err.what() << std::endl;
exit( -1 );
}
catch ( ... )
{
std::cout << "unknown error\n";
exit( -1 );
}
return 0;
}