Vulkan-Hpp/samples/OcclusionQuery/OcclusionQuery.cpp
2023-08-23 13:58:54 +02:00

251 lines
13 KiB
C++

// 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 : OcclusionQuery
// Use occlusion query to determine if drawing renders any samples.
#include "../utils/geometries.hpp"
#include "../utils/math.hpp"
#include "../utils/shaders.hpp"
#include "../utils/utils.hpp"
#include "SPIRV/GlslangToSpv.h"
#include <iostream>
#include <thread>
static char const * AppName = "OcclusionQuery";
static char const * EngineName = "Vulkan.hpp";
int main( int /*argc*/, char ** /*argv*/ )
{
try
{
vk::Instance instance = vk::su::createInstance( AppName, EngineName, {}, vk::su::getInstanceExtensions() );
#if !defined( NDEBUG )
vk::DebugUtilsMessengerEXT debugUtilsMessenger = instance.createDebugUtilsMessengerEXT( vk::su::makeDebugUtilsMessengerCreateInfoEXT() );
#endif
vk::PhysicalDevice physicalDevice = instance.enumeratePhysicalDevices().front();
vk::su::SurfaceData surfaceData( instance, AppName, vk::Extent2D( 500, 500 ) );
std::pair<uint32_t, uint32_t> graphicsAndPresentQueueFamilyIndex = vk::su::findGraphicsAndPresentQueueFamilyIndex( physicalDevice, surfaceData.surface );
vk::Device device = vk::su::createDevice( physicalDevice, graphicsAndPresentQueueFamilyIndex.first, vk::su::getDeviceExtensions() );
vk::CommandPool commandPool = device.createCommandPool( { {}, graphicsAndPresentQueueFamilyIndex.first } );
vk::CommandBuffer commandBuffer =
device.allocateCommandBuffers( vk::CommandBufferAllocateInfo( commandPool, 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,
{},
graphicsAndPresentQueueFamilyIndex.first,
graphicsAndPresentQueueFamilyIndex.second );
vk::su::DepthBufferData depthBufferData( physicalDevice, device, vk::Format::eD16Unorm, surfaceData.extent );
vk::su::BufferData uniformBufferData( physicalDevice, device, sizeof( glm::mat4x4 ), vk::BufferUsageFlagBits::eUniformBuffer );
glm::mat4x4 mvpcMatrix = vk::su::createModelViewProjectionClipMatrix( surfaceData.extent );
vk::su::copyToDevice( device, uniformBufferData.deviceMemory, mvpcMatrix );
vk::DescriptorSetLayout descriptorSetLayout =
vk::su::createDescriptorSetLayout( device, { { vk::DescriptorType::eUniformBuffer, 1, vk::ShaderStageFlagBits::eVertex } } );
vk::PipelineLayout pipelineLayout = device.createPipelineLayout( vk::PipelineLayoutCreateInfo( vk::PipelineLayoutCreateFlags(), descriptorSetLayout ) );
vk::RenderPass renderPass = vk::su::createRenderPass(
device, vk::su::pickSurfaceFormat( physicalDevice.getSurfaceFormatsKHR( surfaceData.surface ) ).format, depthBufferData.format );
glslang::InitializeProcess();
vk::ShaderModule vertexShaderModule = vk::su::createShaderModule( device, vk::ShaderStageFlagBits::eVertex, vertexShaderText_PC_C );
vk::ShaderModule fragmentShaderModule = vk::su::createShaderModule( device, vk::ShaderStageFlagBits::eFragment, fragmentShaderText_C_C );
glslang::FinalizeProcess();
std::vector<vk::Framebuffer> framebuffers =
vk::su::createFramebuffers( device, renderPass, swapChainData.imageViews, depthBufferData.imageView, surfaceData.extent );
vk::su::BufferData vertexBufferData( physicalDevice, device, sizeof( coloredCubeData ), vk::BufferUsageFlagBits::eVertexBuffer );
vk::su::copyToDevice( device, vertexBufferData.deviceMemory, coloredCubeData, sizeof( coloredCubeData ) / sizeof( coloredCubeData[0] ) );
vk::DescriptorPool descriptorPool = vk::su::createDescriptorPool( device, { { vk::DescriptorType::eUniformBuffer, 1 } } );
vk::DescriptorSetAllocateInfo descriptorSetAllocateInfo( descriptorPool, descriptorSetLayout );
vk::DescriptorSet descriptorSet = device.allocateDescriptorSets( descriptorSetAllocateInfo ).front();
vk::su::updateDescriptorSets( device, descriptorSet, { { vk::DescriptorType::eUniformBuffer, uniformBufferData.buffer, VK_WHOLE_SIZE, {} } }, {} );
vk::PipelineCache pipelineCache = device.createPipelineCache( vk::PipelineCacheCreateInfo() );
vk::Pipeline graphicsPipeline = vk::su::createGraphicsPipeline( device,
pipelineCache,
std::make_pair( vertexShaderModule, nullptr ),
std::make_pair( fragmentShaderModule, nullptr ),
sizeof( coloredCubeData[0] ),
{ { vk::Format::eR32G32B32A32Sfloat, 0 }, { vk::Format::eR32G32B32A32Sfloat, 16 } },
vk::FrontFace::eClockwise,
true,
pipelineLayout,
renderPass );
/* VULKAN_KEY_START */
vk::Semaphore imageAcquiredSemaphore = device.createSemaphore( vk::SemaphoreCreateInfo( vk::SemaphoreCreateFlags() ) );
// Get the index of the next available swapchain image:
vk::ResultValue<uint32_t> currentBuffer = device.acquireNextImageKHR( swapChainData.swapChain, UINT64_MAX, imageAcquiredSemaphore, nullptr );
assert( currentBuffer.result == vk::Result::eSuccess );
assert( currentBuffer.value < framebuffers.size() );
/* Allocate a uniform buffer that will take query results. */
vk::Buffer queryResultBuffer = device.createBuffer( vk::BufferCreateInfo(
vk::BufferCreateFlags(), 4 * sizeof( uint64_t ), vk::BufferUsageFlagBits::eUniformBuffer | vk::BufferUsageFlagBits::eTransferDst ) );
vk::MemoryRequirements memoryRequirements = device.getBufferMemoryRequirements( queryResultBuffer );
uint32_t memoryTypeIndex = vk::su::findMemoryType( physicalDevice.getMemoryProperties(),
memoryRequirements.memoryTypeBits,
vk::MemoryPropertyFlagBits::eHostVisible | vk::MemoryPropertyFlagBits::eHostCoherent );
vk::DeviceMemory queryResultMemory = device.allocateMemory( vk::MemoryAllocateInfo( memoryRequirements.size, memoryTypeIndex ) );
device.bindBufferMemory( queryResultBuffer, queryResultMemory, 0 );
vk::QueryPool queryPool =
device.createQueryPool( vk::QueryPoolCreateInfo( vk::QueryPoolCreateFlags(), vk::QueryType::eOcclusion, 2, vk::QueryPipelineStatisticFlags() ) );
commandBuffer.begin( vk::CommandBufferBeginInfo( vk::CommandBufferUsageFlags() ) );
commandBuffer.resetQueryPool( queryPool, 0, 2 );
std::array<vk::ClearValue, 2> clearValues;
clearValues[0].color = vk::ClearColorValue( 0.2f, 0.2f, 0.2f, 0.2f );
clearValues[1].depthStencil = vk::ClearDepthStencilValue( 1.0f, 0 );
commandBuffer.beginRenderPass(
vk::RenderPassBeginInfo( renderPass, framebuffers[currentBuffer.value], vk::Rect2D( vk::Offset2D(), surfaceData.extent ), clearValues ),
vk::SubpassContents::eInline );
commandBuffer.bindPipeline( vk::PipelineBindPoint::eGraphics, graphicsPipeline );
commandBuffer.bindDescriptorSets( vk::PipelineBindPoint::eGraphics, pipelineLayout, 0, descriptorSet, {} );
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.beginQuery( queryPool, 0, vk::QueryControlFlags() );
commandBuffer.endQuery( queryPool, 0 );
commandBuffer.beginQuery( queryPool, 1, vk::QueryControlFlags() );
commandBuffer.draw( 12 * 3, 1, 0, 0 );
commandBuffer.endRenderPass();
commandBuffer.endQuery( queryPool, 1 );
commandBuffer.copyQueryPoolResults(
queryPool, 0, 2, queryResultBuffer, 0, sizeof( uint64_t ), vk::QueryResultFlagBits::e64 | vk::QueryResultFlagBits::eWait );
commandBuffer.end();
vk::Fence drawFence = device.createFence( vk::FenceCreateInfo() );
vk::PipelineStageFlags waitDestinationStageMask( vk::PipelineStageFlagBits::eColorAttachmentOutput );
vk::SubmitInfo submitInfo( imageAcquiredSemaphore, waitDestinationStageMask, commandBuffer );
graphicsQueue.submit( submitInfo, drawFence );
graphicsQueue.waitIdle();
vk::ResultValue<std::vector<uint64_t>> rv = device.getQueryPoolResults<uint64_t>(
queryPool, 0, 2, 2 * sizeof( uint64_t ), sizeof( uint64_t ), vk::QueryResultFlagBits::e64 | vk::QueryResultFlagBits::eWait );
switch ( rv.result )
{
case vk::Result::eSuccess: break;
case vk::Result::eNotReady: std::cout << "vk::Device::getQueryPoolResults returned vk::Result::eNotReady !\n"; break;
default: assert( false ); // an unexpected result is returned !
}
std::cout << "vkGetQueryPoolResults data\n";
std::cout << "samples_passed[0] = " << rv.value[0] << "\n";
std::cout << "samples_passed[1] = " << rv.value[1] << "\n";
/* Read back query result from buffer */
uint64_t * samplesPassedPtr = static_cast<uint64_t *>( device.mapMemory( queryResultMemory, 0, memoryRequirements.size, vk::MemoryMapFlags() ) );
std::cout << "vkCmdCopyQueryPoolResults data\n";
std::cout << "samples_passed[0] = " << samplesPassedPtr[0] << "\n";
std::cout << "samples_passed[1] = " << samplesPassedPtr[1] << "\n";
device.unmapMemory( queryResultMemory );
while ( vk::Result::eTimeout == device.waitForFences( drawFence, 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 ) );
device.destroyFence( drawFence );
device.destroyQueryPool( queryPool );
device.destroyBuffer( queryResultBuffer ); // destroy the queryResultBuffer before freeing the bound queryResultMemory !
device.freeMemory( queryResultMemory );
device.destroySemaphore( imageAcquiredSemaphore );
/* VULKAN_KEY_END */
device.destroyPipeline( graphicsPipeline );
device.destroyPipelineCache( pipelineCache );
device.freeDescriptorSets( descriptorPool, descriptorSet );
device.destroyDescriptorPool( descriptorPool );
vertexBufferData.clear( device );
for ( auto framebuffer : framebuffers )
{
device.destroyFramebuffer( framebuffer );
}
device.destroyShaderModule( fragmentShaderModule );
device.destroyShaderModule( vertexShaderModule );
device.destroyRenderPass( renderPass );
device.destroyPipelineLayout( pipelineLayout );
device.destroyDescriptorSetLayout( descriptorSetLayout );
uniformBufferData.clear( device );
depthBufferData.clear( device );
swapChainData.clear( device );
device.freeCommandBuffers( commandPool, commandBuffer );
device.destroyCommandPool( commandPool );
device.destroy();
instance.destroySurfaceKHR( surfaceData.surface );
#if !defined( NDEBUG )
instance.destroyDebugUtilsMessengerEXT( debugUtilsMessenger );
#endif
instance.destroy();
}
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;
}