100 lines
4.5 KiB
C++
100 lines
4.5 KiB
C++
/*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/.
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*/
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#include "RenderPass.hpp"
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#include "FrameBuffer.hpp"
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#include "Base/EngineConfiguration.hpp"
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namespace openVulkanoCpp::Vulkan
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{
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void RenderPass::Init(Device* device, FrameBuffer* frameBuffer, bool clearColor, bool clearDepth)
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{
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m_device = device->device;
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m_frameBuffer = frameBuffer;
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m_useClearColor = clearColor;
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m_useClearDepth = clearDepth;
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CreateRenderPass();
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frameBuffer->RegisterRenderPass(this);
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m_beginInfo.renderPass = renderPass;
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m_beginInfo.renderArea = vk::Rect2D(vk::Offset2D(), m_frameBuffer->GetSize2D());
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if (clearColor) SetClearColor(EngineConfiguration::GetEngineConfiguration()->GetFrameBufferClearColor());
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if (clearDepth) SetClearDepth();
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}
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void RenderPass::Close()
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{
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m_device.destroy(renderPass);
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m_frameBuffer = nullptr;
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}
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void RenderPass::UpdateBeginInfo()
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{
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uint32_t size = 0;
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vk::ClearValue* clearValues = nullptr;
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if (m_useClearColor) { size++; clearValues = m_clearValues.data(); }
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else if (m_useClearDepth) clearValues = &m_clearValues[1];
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if (m_useClearColor && m_useClearDepth) size++;
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m_beginInfo.clearValueCount = size;
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m_beginInfo.pClearValues = clearValues;
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}
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void RenderPass::Begin(vk::CommandBuffer& commandBuffer, bool primaryBuffer)
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{
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m_beginInfo.framebuffer = m_frameBuffer->GetCurrentFrameBuffer();
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commandBuffer.beginRenderPass(m_beginInfo, primaryBuffer ? vk::SubpassContents::eInline : vk::SubpassContents::eSecondaryCommandBuffers);
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}
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void RenderPass::End(vk::CommandBuffer& commandBuffer)
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{
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commandBuffer.endRenderPass();
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}
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void RenderPass::CreateRenderPass()
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{
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std::vector<vk::AttachmentDescription> attachments;
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attachments.reserve(m_frameBuffer->UseDepthBuffer() ? 2 : 1);
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// Color attachment
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attachments.emplace_back(vk::AttachmentDescriptionFlags(), m_frameBuffer->GetColorFormat(), vk::SampleCountFlagBits::e1,
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m_useClearColor ? vk::AttachmentLoadOp::eClear : vk::AttachmentLoadOp::eLoad, vk::AttachmentStoreOp::eStore, vk::AttachmentLoadOp::eLoad,
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vk::AttachmentStoreOp::eStore, vk::ImageLayout::ePresentSrcKHR, vk::ImageLayout::ePresentSrcKHR);
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vk::AttachmentReference* depthReference = nullptr;
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if (m_frameBuffer->UseDepthBuffer())
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{ // Depth attachment
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attachments.emplace_back(vk::AttachmentDescriptionFlags(), m_frameBuffer->GetDepthFormat(), vk::SampleCountFlagBits::e1,
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m_useClearDepth ? vk::AttachmentLoadOp::eClear : vk::AttachmentLoadOp::eLoad, vk::AttachmentStoreOp::eDontCare, m_useClearDepth ? vk::AttachmentLoadOp::eClear : vk::AttachmentLoadOp::eLoad,
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vk::AttachmentStoreOp::eDontCare, vk::ImageLayout::eDepthStencilAttachmentOptimal, vk::ImageLayout::eDepthStencilAttachmentOptimal);
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depthReference = new vk::AttachmentReference(1, vk::ImageLayout::eDepthStencilAttachmentOptimal);
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}
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std::vector<vk::AttachmentReference> colorAttachmentReferences;
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colorAttachmentReferences.emplace_back(0, vk::ImageLayout::eColorAttachmentOptimal);
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std::vector<vk::SubpassDescription> subPasses;
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subPasses.emplace_back(vk::SubpassDescriptionFlags(), vk::PipelineBindPoint::eGraphics, 0, nullptr,
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colorAttachmentReferences.size(), colorAttachmentReferences.data(), nullptr, depthReference, 0, nullptr);
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std::vector<vk::SubpassDependency> subPassDependencies;
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subPassDependencies.emplace_back(0, VK_SUBPASS_EXTERNAL, vk::PipelineStageFlagBits::eColorAttachmentOutput,
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vk::PipelineStageFlagBits::eBottomOfPipe, vk::AccessFlagBits::eColorAttachmentRead | vk::AccessFlagBits::eColorAttachmentWrite,
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vk::AccessFlagBits::eMemoryRead, vk::DependencyFlagBits::eByRegion);
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subPassDependencies.emplace_back(VK_SUBPASS_EXTERNAL, 0, vk::PipelineStageFlagBits::eBottomOfPipe,
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vk::PipelineStageFlagBits::eColorAttachmentOutput, vk::AccessFlagBits::eMemoryRead,
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vk::AccessFlagBits::eColorAttachmentRead | vk::AccessFlagBits::eColorAttachmentWrite,
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vk::DependencyFlagBits::eByRegion);
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const vk::RenderPassCreateInfo createInfo(vk::RenderPassCreateFlags(), attachments.size(), attachments.data(),
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subPasses.size(), subPasses.data(), subPassDependencies.size(), subPassDependencies.data());
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CreateRenderPass(createInfo);
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delete depthReference;
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}
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void RenderPass::CreateRenderPass(const vk::RenderPassCreateInfo& renderPassCreateInfo)
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{
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renderPass = m_device.createRenderPass(renderPassCreateInfo);
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}
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} |