mirror of
https://github.com/KhronosGroup/Vulkan-Hpp.git
synced 2024-09-20 05:52:16 +00:00
185 lines
10 KiB
C++
185 lines
10 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 "vulkan/vulkan.hpp"
|
|
#include "SPIRV/GlslangToSpv.h"
|
|
#include <iostream>
|
|
|
|
static char const* AppName = "OcclusionQuery";
|
|
static char const* EngineName = "Vulkan.hpp";
|
|
|
|
int main(int /*argc*/, char ** /*argv*/)
|
|
{
|
|
try
|
|
{
|
|
vk::UniqueInstance instance = vk::su::createInstance(AppName, EngineName, {}, vk::su::getInstanceExtensions());
|
|
#if !defined(NDEBUG)
|
|
vk::UniqueDebugUtilsMessengerEXT debugUtilsMessenger = vk::su::createDebugUtilsMessenger(instance);
|
|
#endif
|
|
|
|
vk::PhysicalDevice physicalDevice = instance->enumeratePhysicalDevices().front();
|
|
|
|
vk::su::SurfaceData surfaceData(instance, AppName, 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, vk::su::getDeviceExtensions());
|
|
|
|
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::BufferData uniformBufferData(physicalDevice, device, sizeof(glm::mat4x4), vk::BufferUsageFlagBits::eUniformBuffer);
|
|
vk::su::copyToDevice(device, uniformBufferData.deviceMemory, vk::su::createModelViewProjectionClipMatrix(surfaceData.extent));
|
|
|
|
vk::UniqueDescriptorSetLayout descriptorSetLayout = vk::su::createDescriptorSetLayout(device, { {vk::DescriptorType::eUniformBuffer, 1, vk::ShaderStageFlagBits::eVertex} });
|
|
vk::UniquePipelineLayout pipelineLayout = device->createPipelineLayoutUnique(vk::PipelineLayoutCreateInfo(vk::PipelineLayoutCreateFlags(), 1, &descriptorSetLayout.get()));
|
|
|
|
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_PC_C);
|
|
vk::UniqueShaderModule fragmentShaderModule = vk::su::createShaderModule(device, vk::ShaderStageFlagBits::eFragment, fragmentShaderText_C_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(coloredCubeData), vk::BufferUsageFlagBits::eVertexBuffer);
|
|
vk::su::copyToDevice(device, vertexBufferData.deviceMemory, coloredCubeData, sizeof(coloredCubeData) / sizeof(coloredCubeData[0]));
|
|
|
|
vk::UniqueDescriptorPool descriptorPool = vk::su::createDescriptorPool(device, { {vk::DescriptorType::eUniformBuffer, 1} });
|
|
vk::UniqueDescriptorSet descriptorSet = std::move(device->allocateDescriptorSetsUnique(vk::DescriptorSetAllocateInfo(*descriptorPool, 1, &*descriptorSetLayout)).front());
|
|
|
|
vk::su::updateDescriptorSets(device, descriptorSet, {{vk::DescriptorType::eUniformBuffer, uniformBufferData.buffer, vk::UniqueBufferView()}}, {});
|
|
|
|
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(coloredCubeData[0]), { { vk::Format::eR32G32B32A32Sfloat, 0 }, { vk::Format::eR32G32B32A32Sfloat, 16 } },
|
|
vk::FrontFace::eClockwise, true, pipelineLayout, renderPass);
|
|
|
|
/* VULKAN_KEY_START */
|
|
|
|
vk::UniqueSemaphore imageAcquiredSemaphore = device->createSemaphoreUnique(vk::SemaphoreCreateInfo(vk::SemaphoreCreateFlags()));
|
|
|
|
// Get the index of the next available swapchain image:
|
|
vk::ResultValue<uint32_t> currentBuffer = device->acquireNextImageKHR(swapChainData.swapChain.get(), UINT64_MAX, imageAcquiredSemaphore.get(), nullptr);
|
|
assert(currentBuffer.result == vk::Result::eSuccess);
|
|
assert(currentBuffer.value < framebuffers.size());
|
|
|
|
/* Allocate a uniform buffer that will take query results. */
|
|
vk::UniqueBuffer queryResultBuffer = device->createBufferUnique(vk::BufferCreateInfo(vk::BufferCreateFlags(), 4 * sizeof(uint64_t), vk::BufferUsageFlagBits::eUniformBuffer | vk::BufferUsageFlagBits::eTransferDst));
|
|
|
|
vk::MemoryRequirements memoryRequirements = device->getBufferMemoryRequirements(queryResultBuffer.get());
|
|
uint32_t memoryTypeIndex = vk::su::findMemoryType(physicalDevice.getMemoryProperties(), memoryRequirements.memoryTypeBits, vk::MemoryPropertyFlagBits::eHostVisible | vk::MemoryPropertyFlagBits::eHostCoherent);
|
|
vk::UniqueDeviceMemory queryResultMemory = device->allocateMemoryUnique(vk::MemoryAllocateInfo(memoryRequirements.size, memoryTypeIndex));
|
|
|
|
device->bindBufferMemory(queryResultBuffer.get(), queryResultMemory.get(), 0);
|
|
|
|
vk::UniqueQueryPool queryPool = device->createQueryPoolUnique(vk::QueryPoolCreateInfo(vk::QueryPoolCreateFlags(), vk::QueryType::eOcclusion, 2, vk::QueryPipelineStatisticFlags()));
|
|
|
|
commandBuffer->begin(vk::CommandBufferBeginInfo(vk::CommandBufferUsageFlags()));
|
|
commandBuffer->resetQueryPool(queryPool.get(), 0, 2);
|
|
|
|
vk::ClearValue clearValues[2];
|
|
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.get(), framebuffers[currentBuffer.value].get(), vk::Rect2D(vk::Offset2D(), surfaceData.extent), 2, clearValues), vk::SubpassContents::eInline);
|
|
|
|
commandBuffer->bindPipeline(vk::PipelineBindPoint::eGraphics, graphicsPipeline.get());
|
|
commandBuffer->bindDescriptorSets(vk::PipelineBindPoint::eGraphics, pipelineLayout.get(), 0, descriptorSet.get(), {});
|
|
|
|
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.get(), 0, vk::QueryControlFlags());
|
|
commandBuffer->endQuery(queryPool.get(), 0);
|
|
|
|
commandBuffer->beginQuery(queryPool.get(), 1, vk::QueryControlFlags());
|
|
commandBuffer->draw(12 * 3, 1, 0, 0);
|
|
commandBuffer->endRenderPass();
|
|
commandBuffer->endQuery(queryPool.get(), 1);
|
|
|
|
commandBuffer->copyQueryPoolResults(queryPool.get(), 0, 2, queryResultBuffer.get(), 0, sizeof(uint64_t), vk::QueryResultFlagBits::e64 | vk::QueryResultFlagBits::eWait);
|
|
commandBuffer->end();
|
|
|
|
vk::UniqueFence drawFence = device->createFenceUnique(vk::FenceCreateInfo());
|
|
|
|
vk::PipelineStageFlags waitDestinationStageMask(vk::PipelineStageFlagBits::eColorAttachmentOutput);
|
|
vk::SubmitInfo submitInfo(1, &imageAcquiredSemaphore.get(), &waitDestinationStageMask, 1, &commandBuffer.get());
|
|
graphicsQueue.submit(submitInfo, drawFence.get());
|
|
|
|
graphicsQueue.waitIdle();
|
|
|
|
uint64_t samplesPassed[2];
|
|
device->getQueryPoolResults(queryPool.get(), 0, 2, vk::ArrayProxy<uint64_t>(4, samplesPassed), sizeof(uint64_t), vk::QueryResultFlagBits::e64 | vk::QueryResultFlagBits::eWait);
|
|
|
|
std::cout << "vkGetQueryPoolResults data\n";
|
|
std::cout << "samples_passed[0] = " << samplesPassed[0] << "\n";
|
|
std::cout << "samples_passed[1] = " << samplesPassed[1] << "\n";
|
|
|
|
/* Read back query result from buffer */
|
|
uint64_t *samplesPassedPtr = static_cast<uint64_t*>(device->mapMemory(queryResultMemory.get(), 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.get());
|
|
|
|
while (vk::Result::eTimeout == device->waitForFences(drawFence.get(), VK_TRUE, vk::su::FenceTimeout))
|
|
;
|
|
|
|
presentQueue.presentKHR(vk::PresentInfoKHR(0, nullptr, 1, &swapChainData.swapChain.get(), ¤tBuffer.value));
|
|
Sleep(1000);
|
|
|
|
/* VULKAN_KEY_END */
|
|
|
|
#if defined(VK_USE_PLATFORM_WIN32_KHR)
|
|
DestroyWindow(surfaceData.window);
|
|
#else
|
|
#pragma error "unhandled platform"
|
|
#endif
|
|
}
|
|
catch (vk::SystemError err)
|
|
{
|
|
std::cout << "vk::SystemError: " << err.what() << std::endl;
|
|
exit(-1);
|
|
}
|
|
catch (std::runtime_error err)
|
|
{
|
|
std::cout << "std::runtime_error: " << err.what() << std::endl;
|
|
exit(-1);
|
|
}
|
|
catch (...)
|
|
{
|
|
std::cout << "unknown error\n";
|
|
exit(-1);
|
|
}
|
|
return 0;
|
|
}
|