mirror of
https://github.com/KhronosGroup/Vulkan-Hpp.git
synced 2024-10-14 16:32:17 +00:00
236 lines
12 KiB
C++
236 lines
12 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 "../../samples/utils/geometries.hpp"
|
|
#include "../../samples/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::raii::Context context;
|
|
vk::raii::Instance instance = vk::raii::su::makeInstance( context, AppName, EngineName, {}, vk::su::getInstanceExtensions() );
|
|
#if !defined( NDEBUG )
|
|
vk::raii::DebugUtilsMessengerEXT debugUtilsMessenger( instance, vk::su::makeDebugUtilsMessengerCreateInfoEXT() );
|
|
#endif
|
|
vk::raii::PhysicalDevice physicalDevice = vk::raii::PhysicalDevices( instance ).front();
|
|
|
|
vk::FormatProperties formatProperties = physicalDevice.getFormatProperties( vk::Format::eR8G8B8A8Unorm );
|
|
if ( !( formatProperties.optimalTilingFeatures & vk::FormatFeatureFlagBits::eColorAttachment ) )
|
|
{
|
|
std::cout << "vk::Format::eR8G8B8A8Unorm format unsupported for input attachment\n";
|
|
exit( -1 );
|
|
}
|
|
|
|
vk::raii::su::SurfaceData surfaceData( instance, AppName, vk::Extent2D( 500, 500 ) );
|
|
|
|
std::pair<uint32_t, uint32_t> graphicsAndPresentQueueFamilyIndex =
|
|
vk::raii::su::findGraphicsAndPresentQueueFamilyIndex( physicalDevice, surfaceData.surface );
|
|
vk::raii::Device device = vk::raii::su::makeDevice( physicalDevice, graphicsAndPresentQueueFamilyIndex.first, vk::su::getDeviceExtensions() );
|
|
|
|
vk::raii::CommandPool commandPool = vk::raii::CommandPool( device, { {}, graphicsAndPresentQueueFamilyIndex.first } );
|
|
vk::raii::CommandBuffer commandBuffer = vk::raii::su::makeCommandBuffer( device, commandPool );
|
|
|
|
vk::raii::Queue graphicsQueue( device, graphicsAndPresentQueueFamilyIndex.first, 0 );
|
|
vk::raii::Queue presentQueue( device, graphicsAndPresentQueueFamilyIndex.second, 0 );
|
|
|
|
vk::raii::su::SwapChainData swapChainData( physicalDevice,
|
|
device,
|
|
surfaceData.surface,
|
|
surfaceData.extent,
|
|
vk::ImageUsageFlagBits::eColorAttachment | vk::ImageUsageFlagBits::eTransferSrc,
|
|
{},
|
|
graphicsAndPresentQueueFamilyIndex.first,
|
|
graphicsAndPresentQueueFamilyIndex.second );
|
|
|
|
vk::raii::su::DepthBufferData depthBufferData( physicalDevice, device, vk::Format::eD16Unorm, surfaceData.extent );
|
|
|
|
vk::raii::su::BufferData uniformBufferData( physicalDevice, device, sizeof( glm::mat4x4 ), vk::BufferUsageFlagBits::eUniformBuffer );
|
|
glm::mat4x4 mvpcMatrix = vk::su::createModelViewProjectionClipMatrix( surfaceData.extent );
|
|
vk::raii::su::copyToDevice( uniformBufferData.deviceMemory, mvpcMatrix );
|
|
|
|
vk::raii::DescriptorSetLayout descriptorSetLayout =
|
|
vk::raii::su::makeDescriptorSetLayout( device, { { vk::DescriptorType::eUniformBuffer, 1, vk::ShaderStageFlagBits::eVertex } } );
|
|
vk::raii::PipelineLayout pipelineLayout( device, { {}, *descriptorSetLayout } );
|
|
|
|
vk::Format colorFormat = vk::su::pickSurfaceFormat( physicalDevice.getSurfaceFormatsKHR( *surfaceData.surface ) ).format;
|
|
vk::raii::RenderPass renderPass = vk::raii::su::makeRenderPass( device, colorFormat, depthBufferData.format );
|
|
|
|
glslang::InitializeProcess();
|
|
vk::raii::ShaderModule vertexShaderModule = vk::raii::su::makeShaderModule( device, vk::ShaderStageFlagBits::eVertex, vertexShaderText_PC_C );
|
|
vk::raii::ShaderModule fragmentShaderModule = vk::raii::su::makeShaderModule( device, vk::ShaderStageFlagBits::eFragment, fragmentShaderText_C_C );
|
|
glslang::FinalizeProcess();
|
|
|
|
std::vector<vk::raii::Framebuffer> framebuffers =
|
|
vk::raii::su::makeFramebuffers( device, renderPass, swapChainData.imageViews, &depthBufferData.imageView, surfaceData.extent );
|
|
|
|
vk::raii::su::BufferData vertexBufferData( physicalDevice, device, sizeof( coloredCubeData ), vk::BufferUsageFlagBits::eVertexBuffer );
|
|
vk::raii::su::copyToDevice( vertexBufferData.deviceMemory, coloredCubeData, sizeof( coloredCubeData ) / sizeof( coloredCubeData[0] ) );
|
|
|
|
vk::raii::DescriptorPool descriptorPool = vk::raii::su::makeDescriptorPool( device, { { vk::DescriptorType::eUniformBuffer, 1 } } );
|
|
vk::raii::DescriptorSet descriptorSet = std::move( vk::raii::DescriptorSets( device, { *descriptorPool, *descriptorSetLayout } ).front() );
|
|
|
|
vk::raii::su::updateDescriptorSets(
|
|
device, descriptorSet, { { vk::DescriptorType::eUniformBuffer, uniformBufferData.buffer, VK_WHOLE_SIZE, nullptr } }, {} );
|
|
|
|
vk::raii::PipelineCache pipelineCache( device, vk::PipelineCacheCreateInfo() );
|
|
vk::raii::Pipeline graphicsPipeline = vk::raii::su::makeGraphicsPipeline( device,
|
|
pipelineCache,
|
|
vertexShaderModule,
|
|
nullptr,
|
|
fragmentShaderModule,
|
|
nullptr,
|
|
sizeof( coloredCubeData[0] ),
|
|
{ { vk::Format::eR32G32B32A32Sfloat, 0 }, { vk::Format::eR32G32Sfloat, 16 } },
|
|
vk::FrontFace::eClockwise,
|
|
true,
|
|
pipelineLayout,
|
|
renderPass );
|
|
|
|
/* VULKAN_KEY_START */
|
|
|
|
vk::raii::Semaphore imageAcquiredSemaphore( device, vk::SemaphoreCreateInfo() );
|
|
|
|
// Get the index of the next available swapchain image:
|
|
vk::Result result;
|
|
uint32_t imageIndex;
|
|
std::tie( result, imageIndex ) = swapChainData.swapChain.acquireNextImage( vk::su::FenceTimeout, *imageAcquiredSemaphore );
|
|
assert( result == vk::Result::eSuccess );
|
|
assert( imageIndex < swapChainData.images.size() );
|
|
|
|
// in order to get a clean desctruction sequence, instantiate the DeviceMemory for the result buffer first
|
|
vk::raii::DeviceMemory queryResultMemory( nullptr );
|
|
|
|
/* Allocate a uniform buffer that will take query results. */
|
|
vk::BufferCreateInfo bufferCreateInfo( {}, 4 * sizeof( uint64_t ), vk::BufferUsageFlagBits::eUniformBuffer | vk::BufferUsageFlagBits::eTransferDst );
|
|
vk::raii::Buffer queryResultBuffer( device, bufferCreateInfo );
|
|
|
|
vk::MemoryRequirements memoryRequirements = queryResultBuffer.getMemoryRequirements();
|
|
uint32_t memoryTypeIndex = vk::su::findMemoryType( physicalDevice.getMemoryProperties(),
|
|
memoryRequirements.memoryTypeBits,
|
|
vk::MemoryPropertyFlagBits::eHostVisible | vk::MemoryPropertyFlagBits::eHostCoherent );
|
|
vk::MemoryAllocateInfo memoryAllocateInfo( memoryRequirements.size, memoryTypeIndex );
|
|
queryResultMemory = vk::raii::DeviceMemory( device, memoryAllocateInfo );
|
|
|
|
queryResultBuffer.bindMemory( *queryResultMemory, 0 );
|
|
|
|
vk::QueryPoolCreateInfo queryPoolCreateInfo( {}, vk::QueryType::eOcclusion, 2, {} );
|
|
vk::raii::QueryPool queryPool( device, queryPoolCreateInfo );
|
|
|
|
commandBuffer.begin( {} );
|
|
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[imageIndex], 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::raii::Fence drawFence( device, vk::FenceCreateInfo() );
|
|
|
|
vk::PipelineStageFlags waitDestinationStageMask( vk::PipelineStageFlagBits::eColorAttachmentOutput );
|
|
vk::SubmitInfo submitInfo( *imageAcquiredSemaphore, waitDestinationStageMask, *commandBuffer );
|
|
graphicsQueue.submit( submitInfo, *drawFence );
|
|
|
|
graphicsQueue.waitIdle();
|
|
|
|
std::vector<uint64_t> poolResults;
|
|
std::tie( result, poolResults ) =
|
|
queryPool.getResults<uint64_t>( 0, 2, 2 * sizeof( uint64_t ), sizeof( uint64_t ), vk::QueryResultFlagBits::e64 | vk::QueryResultFlagBits::eWait );
|
|
switch ( 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] = " << poolResults[0] << "\n";
|
|
std::cout << "samples_passed[1] = " << poolResults[1] << "\n";
|
|
|
|
/* Read back query result from buffer */
|
|
uint64_t * samplesPassedPtr = static_cast<uint64_t *>( queryResultMemory.mapMemory( 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";
|
|
|
|
queryResultMemory.unmapMemory();
|
|
|
|
while ( vk::Result::eTimeout == device.waitForFences( { *drawFence }, VK_TRUE, vk::su::FenceTimeout ) )
|
|
;
|
|
|
|
vk::PresentInfoKHR presentInfoKHR( nullptr, *swapChainData.swapChain, imageIndex );
|
|
result = presentQueue.presentKHR( presentInfoKHR );
|
|
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 */
|
|
}
|
|
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;
|
|
}
|