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/*
* Copyright 2019-2021 Diligent Graphics LLC
* Copyright 2015-2019 Egor Yusov
*
* 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.
*
* In no event and under no legal theory, whether in tort (including negligence),
* contract, or otherwise, unless required by applicable law (such as deliberate
* and grossly negligent acts) or agreed to in writing, shall any Contributor be
* liable for any damages, including any direct, indirect, special, incidental,
* or consequential damages of any character arising as a result of this License or
* out of the use or inability to use the software (including but not limited to damages
* for loss of goodwill, work stoppage, computer failure or malfunction, or any and
* all other commercial damages or losses), even if such Contributor has been advised
* of the possibility of such damages.
*/
#include "pch.h"
#include <vector>
#include "RenderPassVkImpl.hpp"
#include "RenderDeviceVkImpl.hpp"
#include "VulkanTypeConversions.hpp"
namespace Diligent
{
RenderPassVkImpl::RenderPassVkImpl(IReferenceCounters* pRefCounters,
RenderDeviceVkImpl* pDevice,
const RenderPassDesc& Desc,
bool IsDeviceInternal) :
TRenderPassBase{pRefCounters, pDevice, Desc, IsDeviceInternal}
{
VkRenderPassCreateInfo RenderPassCI = {};
RenderPassCI.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
RenderPassCI.pNext = nullptr;
RenderPassCI.flags = 0;
std::vector<VkAttachmentDescription> vkAttachments(m_Desc.AttachmentCount);
for (Uint32 i = 0; i < m_Desc.AttachmentCount; ++i)
{
const auto& Attachment = m_Desc.pAttachments[i];
auto& vkAttachment = vkAttachments[i];
vkAttachment.flags = 0;
vkAttachment.format = TexFormatToVkFormat(Attachment.Format);
vkAttachment.samples = static_cast<VkSampleCountFlagBits>(Attachment.SampleCount);
vkAttachment.loadOp = AttachmentLoadOpToVkAttachmentLoadOp(Attachment.LoadOp);
vkAttachment.storeOp = AttachmentStoreOpToVkAttachmentStoreOp(Attachment.StoreOp);
vkAttachment.stencilLoadOp = AttachmentLoadOpToVkAttachmentLoadOp(Attachment.StencilLoadOp);
vkAttachment.stencilStoreOp = AttachmentStoreOpToVkAttachmentStoreOp(Attachment.StencilStoreOp);
vkAttachment.initialLayout = ResourceStateToVkImageLayout(Attachment.InitialState, /*IsInsideRenderPass = */ false);
vkAttachment.finalLayout = ResourceStateToVkImageLayout(Attachment.FinalState, /*IsInsideRenderPass = */ true);
}
RenderPassCI.attachmentCount = Desc.AttachmentCount;
RenderPassCI.pAttachments = vkAttachments.data();
Uint32 TotalAttachmentReferencesCount = 0;
Uint32 TotalPreserveAttachmentsCount = 0;
CountSubpassAttachmentReferences(Desc, TotalAttachmentReferencesCount, TotalPreserveAttachmentsCount);
std::vector<VkAttachmentReference> vkAttachmentReferences(TotalAttachmentReferencesCount);
std::vector<Uint32> vkPreserveAttachments(TotalPreserveAttachmentsCount);
Uint32 CurrAttachmentReferenceInd = 0;
Uint32 CurrPreserveAttachmentInd = 0;
std::vector<VkSubpassDescription> vkSubpasses(Desc.SubpassCount);
for (Uint32 i = 0; i < m_Desc.SubpassCount; ++i)
{
const auto& SubpassDesc = m_Desc.pSubpasses[i];
auto& vkSubpass = vkSubpasses[i];
vkSubpass.flags = 0;
vkSubpass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
vkSubpass.inputAttachmentCount = SubpassDesc.InputAttachmentCount;
auto ConvertAttachmentReferences = [&](Uint32 NumAttachments, const AttachmentReference* pSrcAttachments) //
{
auto* pCurrVkAttachmentReference = &vkAttachmentReferences[CurrAttachmentReferenceInd];
for (Uint32 attachment = 0; attachment < NumAttachments; ++attachment, ++CurrAttachmentReferenceInd)
{
const auto& AttachmnetRef = pSrcAttachments[attachment];
vkAttachmentReferences[CurrAttachmentReferenceInd].attachment = AttachmnetRef.AttachmentIndex;
vkAttachmentReferences[CurrAttachmentReferenceInd].layout =
ResourceStateToVkImageLayout(AttachmnetRef.State, /*IsInsideRenderPass = */ true);
}
return pCurrVkAttachmentReference;
};
if (SubpassDesc.InputAttachmentCount != 0)
{
vkSubpass.pInputAttachments = ConvertAttachmentReferences(SubpassDesc.InputAttachmentCount, SubpassDesc.pInputAttachments);
}
vkSubpass.colorAttachmentCount = SubpassDesc.RenderTargetAttachmentCount;
if (SubpassDesc.RenderTargetAttachmentCount != 0)
{
vkSubpass.pColorAttachments = ConvertAttachmentReferences(SubpassDesc.RenderTargetAttachmentCount, SubpassDesc.pRenderTargetAttachments);
if (SubpassDesc.pResolveAttachments != nullptr)
{
vkSubpass.pResolveAttachments = ConvertAttachmentReferences(SubpassDesc.RenderTargetAttachmentCount, SubpassDesc.pResolveAttachments);
}
}
if (SubpassDesc.pDepthStencilAttachment != nullptr)
{
vkSubpass.pDepthStencilAttachment = ConvertAttachmentReferences(1, SubpassDesc.pDepthStencilAttachment);
}
vkSubpass.preserveAttachmentCount = SubpassDesc.PreserveAttachmentCount;
if (SubpassDesc.PreserveAttachmentCount != 0)
{
vkSubpass.pPreserveAttachments = &vkPreserveAttachments[CurrPreserveAttachmentInd];
for (Uint32 prsv_attachment = 0; prsv_attachment < SubpassDesc.PreserveAttachmentCount; ++prsv_attachment, ++CurrPreserveAttachmentInd)
{
vkPreserveAttachments[CurrPreserveAttachmentInd] = SubpassDesc.pPreserveAttachments[prsv_attachment];
}
}
}
VERIFY_EXPR(CurrAttachmentReferenceInd == vkAttachmentReferences.size());
VERIFY_EXPR(CurrPreserveAttachmentInd == vkPreserveAttachments.size());
RenderPassCI.subpassCount = Desc.SubpassCount;
RenderPassCI.pSubpasses = vkSubpasses.data();
std::vector<VkSubpassDependency> vkDependencies(Desc.DependencyCount);
for (Uint32 i = 0; i < Desc.DependencyCount; ++i)
{
const auto& DependencyDesc = m_Desc.pDependencies[i];
auto& vkDependency = vkDependencies[i];
vkDependency.srcSubpass = DependencyDesc.SrcSubpass;
vkDependency.dstSubpass = DependencyDesc.DstSubpass;
vkDependency.srcStageMask = DependencyDesc.SrcStageMask;
vkDependency.dstStageMask = DependencyDesc.DstStageMask;
vkDependency.srcAccessMask = DependencyDesc.SrcAccessMask;
vkDependency.dstAccessMask = DependencyDesc.DstAccessMask;
// VK_DEPENDENCY_BY_REGION_BIT specifies that dependencies will be framebuffer-local.
// Framebuffer-local dependencies are more optimal for most architectures; particularly
// tile-based architectures - which can keep framebuffer-regions entirely in on-chip registers
// and thus avoid external bandwidth across such a dependency. Including a framebuffer-global
// dependency in your rendering will usually force all implementations to flush data to memory,
// or to a higher level cache, breaking any potential locality optimizations.
vkDependency.dependencyFlags = VK_DEPENDENCY_BY_REGION_BIT;
}
RenderPassCI.dependencyCount = Desc.DependencyCount;
RenderPassCI.pDependencies = vkDependencies.data();
const auto& LogicalDevice = pDevice->GetLogicalDevice();
m_VkRenderPass = LogicalDevice.CreateRenderPass(RenderPassCI, Desc.Name);
if (!m_VkRenderPass)
{
LOG_ERROR_AND_THROW("Failed to create Vulkan render pass");
}
}
RenderPassVkImpl::~RenderPassVkImpl()
{
m_pDevice->SafeReleaseDeviceObject(std::move(m_VkRenderPass), ~Uint64{0});
}
} // namespace Diligent
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