mirror of
https://github.com/KhronosGroup/Vulkan-Hpp.git
synced 2024-10-14 16:32:17 +00:00
271 lines
13 KiB
C++
271 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 "../../samples/utils/geometries.hpp"
|
|
#include "../../samples/utils/math.hpp"
|
|
#include "../utils/shaders.hpp"
|
|
#include "../utils/utils.hpp"
|
|
#include "SPIRV/GlslangToSpv.h"
|
|
#include "vulkan/vulkan_raii.hpp"
|
|
|
|
#include <iostream>
|
|
#include <thread>
|
|
|
|
static char const * AppName = "OcclusionQuery";
|
|
static char const * EngineName = "Vulkan.hpp";
|
|
|
|
int main( int /*argc*/, char ** /*argv*/ )
|
|
{
|
|
try
|
|
{
|
|
std::unique_ptr<vk::raii::Context> context = vk::raii::su::make_unique<vk::raii::Context>();
|
|
std::unique_ptr<vk::raii::Instance> instance =
|
|
vk::raii::su::makeUniqueInstance( *context, AppName, EngineName, {}, vk::su::getInstanceExtensions() );
|
|
#if !defined( NDEBUG )
|
|
std::unique_ptr<vk::raii::DebugUtilsMessengerEXT> debugUtilsMessenger =
|
|
vk::raii::su::makeUniqueDebugUtilsMessengerEXT( *instance );
|
|
#endif
|
|
std::unique_ptr<vk::raii::PhysicalDevice> physicalDevice = vk::raii::su::makeUniquePhysicalDevice( *instance );
|
|
|
|
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 );
|
|
std::unique_ptr<vk::raii::Device> device = vk::raii::su::makeUniqueDevice(
|
|
*physicalDevice, graphicsAndPresentQueueFamilyIndex.first, vk::su::getDeviceExtensions() );
|
|
|
|
std::unique_ptr<vk::raii::CommandPool> commandPool =
|
|
vk::raii::su::makeUniqueCommandPool( *device, graphicsAndPresentQueueFamilyIndex.first );
|
|
std::unique_ptr<vk::raii::CommandBuffer> commandBuffer =
|
|
vk::raii::su::makeUniqueCommandBuffer( *device, *commandPool );
|
|
|
|
std::unique_ptr<vk::raii::Queue> graphicsQueue =
|
|
vk::raii::su::make_unique<vk::raii::Queue>( *device, graphicsAndPresentQueueFamilyIndex.first, 0 );
|
|
std::unique_ptr<vk::raii::Queue> presentQueue =
|
|
vk::raii::su::make_unique<vk::raii::Queue>( *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 );
|
|
|
|
std::unique_ptr<vk::raii::DescriptorSetLayout> descriptorSetLayout = vk::raii::su::makeUniqueDescriptorSetLayout(
|
|
*device, { { vk::DescriptorType::eUniformBuffer, 1, vk::ShaderStageFlagBits::eVertex } } );
|
|
std::unique_ptr<vk::raii::PipelineLayout> pipelineLayout =
|
|
vk::raii::su::makeUniquePipelineLayout( *device, *descriptorSetLayout );
|
|
|
|
vk::Format colorFormat =
|
|
vk::su::pickSurfaceFormat( physicalDevice->getSurfaceFormatsKHR( **surfaceData.surface ) ).format;
|
|
std::unique_ptr<vk::raii::RenderPass> renderPass =
|
|
vk::raii::su::makeUniqueRenderPass( *device, colorFormat, depthBufferData.format );
|
|
|
|
glslang::InitializeProcess();
|
|
std::unique_ptr<vk::raii::ShaderModule> vertexShaderModule =
|
|
vk::raii::su::makeUniqueShaderModule( *device, vk::ShaderStageFlagBits::eVertex, vertexShaderText_PC_C );
|
|
std::unique_ptr<vk::raii::ShaderModule> fragmentShaderModule =
|
|
vk::raii::su::makeUniqueShaderModule( *device, vk::ShaderStageFlagBits::eFragment, fragmentShaderText_C_C );
|
|
glslang::FinalizeProcess();
|
|
|
|
std::vector<std::unique_ptr<vk::raii::Framebuffer>> framebuffers = vk::raii::su::makeUniqueFramebuffers(
|
|
*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] ) );
|
|
|
|
std::unique_ptr<vk::raii::DescriptorPool> descriptorPool =
|
|
vk::raii::su::makeUniqueDescriptorPool( *device, { { vk::DescriptorType::eUniformBuffer, 1 } } );
|
|
std::unique_ptr<vk::raii::DescriptorSet> descriptorSet =
|
|
vk::raii::su::makeUniqueDescriptorSet( *device, *descriptorPool, *descriptorSetLayout );
|
|
|
|
vk::raii::su::updateDescriptorSets(
|
|
*device, *descriptorSet, { { vk::DescriptorType::eUniformBuffer, *uniformBufferData.buffer, nullptr } }, {} );
|
|
|
|
std::unique_ptr<vk::raii::PipelineCache> pipelineCache =
|
|
vk::raii::su::make_unique<vk::raii::PipelineCache>( *device, vk::PipelineCacheCreateInfo() );
|
|
std::unique_ptr<vk::raii::Pipeline> graphicsPipeline = vk::raii::su::makeUniqueGraphicsPipeline(
|
|
*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 */
|
|
|
|
std::unique_ptr<vk::raii::Semaphore> imageAcquiredSemaphore =
|
|
vk::raii::su::make_unique<vk::raii::Semaphore>( *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() );
|
|
|
|
/* Allocate a uniform buffer that will take query results. */
|
|
vk::BufferCreateInfo bufferCreateInfo(
|
|
{}, 4 * sizeof( uint64_t ), vk::BufferUsageFlagBits::eUniformBuffer | vk::BufferUsageFlagBits::eTransferDst );
|
|
std::unique_ptr<vk::raii::Buffer> queryResultBuffer =
|
|
vk::raii::su::make_unique<vk::raii::Buffer>( *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 );
|
|
std::unique_ptr<vk::raii::DeviceMemory> queryResultMemory =
|
|
vk::raii::su::make_unique<vk::raii::DeviceMemory>( *device, memoryAllocateInfo );
|
|
|
|
queryResultBuffer->bindMemory( **queryResultMemory, 0 );
|
|
|
|
vk::QueryPoolCreateInfo queryPoolCreateInfo( {}, vk::QueryType::eOcclusion, 2, {} );
|
|
std::unique_ptr<vk::raii::QueryPool> queryPool =
|
|
vk::raii::su::make_unique<vk::raii::QueryPool>( *device, queryPoolCreateInfo );
|
|
|
|
commandBuffer->begin( {} );
|
|
commandBuffer->resetQueryPool( **queryPool, 0, 2 );
|
|
|
|
std::array<vk::ClearValue, 2> clearValues;
|
|
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 );
|
|
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();
|
|
|
|
std::unique_ptr<vk::raii::Fence> drawFence = vk::raii::su::make_unique<vk::raii::Fence>( *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;
|
|
}
|