mirror of
https://github.com/KhronosGroup/Vulkan-Hpp.git
synced 2024-10-14 16:32:17 +00:00
256 lines
13 KiB
C++
256 lines
13 KiB
C++
// Copyright(c) 2019, NVIDIA CORPORATION. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// VulkanHpp Samples : SecondaryCommandBuffer
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// Draw several cubes using primary and secondary command buffers
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#include "../utils/geometries.hpp"
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#include "../utils/math.hpp"
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#include "../utils/shaders.hpp"
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#include "../utils/utils.hpp"
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#include "SPIRV/GlslangToSpv.h"
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#include "vulkan/vulkan.hpp"
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#include <iostream>
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#include <thread>
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static char const * AppName = "SecondaryCommandBuffer";
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static char const * EngineName = "Vulkan.hpp";
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int main( int /*argc*/, char ** /*argv*/ )
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{
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try
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{
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vk::UniqueInstance instance = vk::su::createInstance( AppName, EngineName, {}, vk::su::getInstanceExtensions() );
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#if !defined( NDEBUG )
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vk::UniqueDebugUtilsMessengerEXT debugUtilsMessenger = vk::su::createDebugUtilsMessenger( instance );
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#endif
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vk::PhysicalDevice physicalDevice = instance->enumeratePhysicalDevices().front();
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vk::su::SurfaceData surfaceData( instance, AppName, vk::Extent2D( 500, 500 ) );
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std::pair<uint32_t, uint32_t> graphicsAndPresentQueueFamilyIndex =
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vk::su::findGraphicsAndPresentQueueFamilyIndex( physicalDevice, *surfaceData.surface );
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vk::UniqueDevice device =
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vk::su::createDevice( physicalDevice, graphicsAndPresentQueueFamilyIndex.first, vk::su::getDeviceExtensions() );
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vk::UniqueCommandPool commandPool = vk::su::createCommandPool( device, graphicsAndPresentQueueFamilyIndex.first );
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vk::UniqueCommandBuffer commandBuffer = std::move( device
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->allocateCommandBuffersUnique( vk::CommandBufferAllocateInfo(
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commandPool.get(), vk::CommandBufferLevel::ePrimary, 1 ) )
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.front() );
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vk::Queue graphicsQueue = device->getQueue( graphicsAndPresentQueueFamilyIndex.first, 0 );
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vk::Queue presentQueue = device->getQueue( graphicsAndPresentQueueFamilyIndex.second, 0 );
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vk::su::SwapChainData swapChainData( physicalDevice,
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device,
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*surfaceData.surface,
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surfaceData.extent,
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vk::ImageUsageFlagBits::eColorAttachment |
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vk::ImageUsageFlagBits::eTransferSrc,
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vk::UniqueSwapchainKHR(),
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graphicsAndPresentQueueFamilyIndex.first,
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graphicsAndPresentQueueFamilyIndex.second );
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vk::su::DepthBufferData depthBufferData( physicalDevice, device, vk::Format::eD16Unorm, surfaceData.extent );
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vk::su::BufferData uniformBufferData(
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physicalDevice, device, sizeof( glm::mat4x4 ), vk::BufferUsageFlagBits::eUniformBuffer );
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vk::su::copyToDevice(
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device, uniformBufferData.deviceMemory, vk::su::createModelViewProjectionClipMatrix( surfaceData.extent ) );
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vk::UniqueDescriptorSetLayout descriptorSetLayout = vk::su::createDescriptorSetLayout(
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device,
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{ { vk::DescriptorType::eUniformBuffer, 1, vk::ShaderStageFlagBits::eVertex },
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{ vk::DescriptorType::eCombinedImageSampler, 1, vk::ShaderStageFlagBits::eFragment } } );
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vk::UniquePipelineLayout pipelineLayout = device->createPipelineLayoutUnique(
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vk::PipelineLayoutCreateInfo( vk::PipelineLayoutCreateFlags(), *descriptorSetLayout ) );
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vk::UniqueRenderPass renderPass = vk::su::createRenderPass(
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device,
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vk::su::pickSurfaceFormat( physicalDevice.getSurfaceFormatsKHR( surfaceData.surface.get() ) ).format,
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depthBufferData.format,
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vk::AttachmentLoadOp::eClear,
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vk::ImageLayout::eColorAttachmentOptimal );
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glslang::InitializeProcess();
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vk::UniqueShaderModule vertexShaderModule =
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vk::su::createShaderModule( device, vk::ShaderStageFlagBits::eVertex, vertexShaderText_PT_T );
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vk::UniqueShaderModule fragmentShaderModule =
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vk::su::createShaderModule( device, vk::ShaderStageFlagBits::eFragment, fragmentShaderText_T_C );
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glslang::FinalizeProcess();
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std::vector<vk::UniqueFramebuffer> framebuffers = vk::su::createFramebuffers(
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device, renderPass, swapChainData.imageViews, depthBufferData.imageView, surfaceData.extent );
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vk::su::BufferData vertexBufferData(
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physicalDevice, device, sizeof( texturedCubeData ), vk::BufferUsageFlagBits::eVertexBuffer );
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vk::su::copyToDevice( device,
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vertexBufferData.deviceMemory,
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texturedCubeData,
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sizeof( texturedCubeData ) / sizeof( texturedCubeData[0] ) );
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vk::UniquePipelineCache pipelineCache = device->createPipelineCacheUnique( vk::PipelineCacheCreateInfo() );
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vk::UniquePipeline graphicsPipeline =
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vk::su::createGraphicsPipeline( device,
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pipelineCache,
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std::make_pair( *vertexShaderModule, nullptr ),
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std::make_pair( *fragmentShaderModule, nullptr ),
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sizeof( texturedCubeData[0] ),
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{ { vk::Format::eR32G32B32A32Sfloat, 0 }, { vk::Format::eR32G32Sfloat, 16 } },
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vk::FrontFace::eClockwise,
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true,
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pipelineLayout,
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renderPass );
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commandBuffer->begin( vk::CommandBufferBeginInfo() );
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vk::su::TextureData greenTextureData( physicalDevice, device );
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greenTextureData.setImage( device, commandBuffer, vk::su::MonochromeImageGenerator( { 118, 185, 0 } ) );
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vk::su::TextureData checkeredTextureData( physicalDevice, device );
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checkeredTextureData.setImage( device, commandBuffer, vk::su::CheckerboardImageGenerator() );
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// create two identical descriptor sets, each with a different texture but identical UBOs
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vk::UniqueDescriptorPool descriptorPool = vk::su::createDescriptorPool(
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device, { { vk::DescriptorType::eUniformBuffer, 2 }, { vk::DescriptorType::eCombinedImageSampler, 2 } } );
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std::array<vk::DescriptorSetLayout, 2> layouts = { descriptorSetLayout.get(), descriptorSetLayout.get() };
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std::vector<vk::UniqueDescriptorSet> descriptorSets =
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device->allocateDescriptorSetsUnique( vk::DescriptorSetAllocateInfo( descriptorPool.get(), layouts ) );
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assert( descriptorSets.size() == 2 );
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vk::su::updateDescriptorSets( device,
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descriptorSets[0],
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{ { vk::DescriptorType::eUniformBuffer, uniformBufferData.buffer, {} } },
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greenTextureData );
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vk::su::updateDescriptorSets( device,
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descriptorSets[1],
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{ { vk::DescriptorType::eUniformBuffer, uniformBufferData.buffer, {} } },
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checkeredTextureData );
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/* VULKAN_KEY_START */
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// create four secondary command buffers, for each quadrant of the screen
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std::vector<vk::UniqueCommandBuffer> secondaryCommandBuffers = device->allocateCommandBuffersUnique(
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vk::CommandBufferAllocateInfo( commandPool.get(), vk::CommandBufferLevel::eSecondary, 4 ) );
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// Get the index of the next available swapchain image:
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vk::UniqueSemaphore imageAcquiredSemaphore = device->createSemaphoreUnique( vk::SemaphoreCreateInfo() );
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vk::ResultValue<uint32_t> currentBuffer = device->acquireNextImageKHR(
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swapChainData.swapChain.get(), vk::su::FenceTimeout, imageAcquiredSemaphore.get(), nullptr );
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assert( currentBuffer.result == vk::Result::eSuccess );
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assert( currentBuffer.value < framebuffers.size() );
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vk::su::setImageLayout( commandBuffer,
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swapChainData.images[currentBuffer.value],
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swapChainData.colorFormat,
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vk::ImageLayout::eUndefined,
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vk::ImageLayout::eColorAttachmentOptimal );
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const vk::DeviceSize offset = 0;
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vk::Viewport viewport( 0.0f, 0.0f, 200.0f, 200.0f, 0.0f, 1.0f );
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vk::Rect2D scissor( vk::Offset2D( 0, 0 ), vk::Extent2D( surfaceData.extent ) );
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// now we record four separate command buffers, one for each quadrant of the screen
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vk::CommandBufferInheritanceInfo commandBufferInheritanceInfo(
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renderPass.get(), 0, framebuffers[currentBuffer.value].get() );
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vk::CommandBufferBeginInfo secondaryBeginInfo( vk::CommandBufferUsageFlagBits::eOneTimeSubmit |
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vk::CommandBufferUsageFlagBits::eRenderPassContinue,
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&commandBufferInheritanceInfo );
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for ( int i = 0; i < 4; i++ )
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{
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viewport.x = 25.0f + 250.0f * ( i % 2 );
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viewport.y = 25.0f + 250.0f * ( i / 2 );
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secondaryCommandBuffers[i]->begin( secondaryBeginInfo );
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secondaryCommandBuffers[i]->bindPipeline( vk::PipelineBindPoint::eGraphics, graphicsPipeline.get() );
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secondaryCommandBuffers[i]->bindDescriptorSets(
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vk::PipelineBindPoint::eGraphics, pipelineLayout.get(), 0, descriptorSets[i == 0 || i == 3].get(), nullptr );
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secondaryCommandBuffers[i]->bindVertexBuffers( 0, vertexBufferData.buffer.get(), offset );
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secondaryCommandBuffers[i]->setViewport( 0, viewport );
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secondaryCommandBuffers[i]->setScissor( 0, scissor );
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secondaryCommandBuffers[i]->draw( 12 * 3, 1, 0, 0 );
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secondaryCommandBuffers[i]->end();
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}
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std::array<vk::ClearValue, 2> clearValues;
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clearValues[0].color = vk::ClearColorValue( std::array<float, 4>( { { 0.2f, 0.2f, 0.2f, 0.2f } } ) );
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clearValues[1].depthStencil = vk::ClearDepthStencilValue( 1.0f, 0 );
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vk::RenderPassBeginInfo renderPassBeginInfo( renderPass.get(),
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framebuffers[currentBuffer.value].get(),
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vk::Rect2D( vk::Offset2D( 0, 0 ), surfaceData.extent ),
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clearValues );
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// specifying VK_SUBPASS_CONTENTS_SECONDARY_COMMAND_BUFFERS means this render pass may ONLY call
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// vkCmdExecuteCommands
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commandBuffer->beginRenderPass( renderPassBeginInfo, vk::SubpassContents::eSecondaryCommandBuffers );
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commandBuffer->executeCommands( vk::uniqueToRaw( secondaryCommandBuffers ) );
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commandBuffer->endRenderPass();
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vk::ImageMemoryBarrier prePresentBarrier(
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vk::AccessFlagBits::eColorAttachmentWrite,
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vk::AccessFlagBits::eMemoryRead,
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vk::ImageLayout::eColorAttachmentOptimal,
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vk::ImageLayout::ePresentSrcKHR,
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VK_QUEUE_FAMILY_IGNORED,
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VK_QUEUE_FAMILY_IGNORED,
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swapChainData.images[currentBuffer.value],
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vk::ImageSubresourceRange( vk::ImageAspectFlagBits::eColor, 0, 1, 0, 1 ) );
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commandBuffer->pipelineBarrier( vk::PipelineStageFlagBits::eColorAttachmentOutput,
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vk::PipelineStageFlagBits::eBottomOfPipe,
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vk::DependencyFlags(),
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nullptr,
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nullptr,
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prePresentBarrier );
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commandBuffer->end();
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vk::UniqueFence drawFence = device->createFenceUnique( vk::FenceCreateInfo() );
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vk::PipelineStageFlags waitDestinationStageMask( vk::PipelineStageFlagBits::eColorAttachmentOutput );
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vk::SubmitInfo submitInfo( *imageAcquiredSemaphore, waitDestinationStageMask, *commandBuffer );
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graphicsQueue.submit( submitInfo, drawFence.get() );
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while ( vk::Result::eTimeout == device->waitForFences( drawFence.get(), VK_TRUE, vk::su::FenceTimeout ) )
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;
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presentQueue.presentKHR( vk::PresentInfoKHR( {}, *swapChainData.swapChain, currentBuffer.value ) );
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std::this_thread::sleep_for( std::chrono::milliseconds( 1000 ) );
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/* VULKAN_KEY_END */
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device->waitIdle();
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}
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catch ( vk::SystemError & err )
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{
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std::cout << "vk::SystemError: " << err.what() << std::endl;
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exit( -1 );
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}
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catch ( std::exception & err )
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{
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std::cout << "std::exception: " << err.what() << std::endl;
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exit( -1 );
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}
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catch ( ... )
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{
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std::cout << "unknown error\n";
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exit( -1 );
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}
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return 0;
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}
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