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o3de/Gems/Atom/RPI/Code/Source/RPI.Public/Pass/MSAAResolvePass.cpp

90 lines
3.1 KiB
C++

/*
* Copyright (c) Contributors to the Open 3D Engine Project.
* For complete copyright and license terms please see the LICENSE at the root of this distribution.
*
* SPDX-License-Identifier: Apache-2.0 OR MIT
*
*/
#include <Atom/RPI.Public/Pass/MSAAResolvePass.h>
#include <Atom/RPI.Public/RenderPipeline.h>
#include <Atom/RPI.Reflect/Pass/PassTemplate.h>
#include <Atom/RPI.Reflect/Shader/ShaderAsset.h>
#include <Atom/RHI/DrawItem.h>
#include <Atom/RHI/Factory.h>
#include <Atom/RHI/FrameScheduler.h>
#include <Atom/RHI/PipelineState.h>
#include <AzCore/Asset/AssetCommon.h>
#include <AzCore/Asset/AssetManagerBus.h>
namespace AZ
{
namespace RPI
{
Ptr<MSAAResolvePass> MSAAResolvePass::Create(const PassDescriptor& descriptor)
{
Ptr<MSAAResolvePass> pass = aznew MSAAResolvePass(descriptor);
return pass;
}
MSAAResolvePass::MSAAResolvePass(const PassDescriptor& descriptor)
: RenderPass(descriptor)
{
}
void MSAAResolvePass::BuildInternal()
{
AZ_Assert(GetOutputCount() != 0, "MSAAResolvePass %s has no outputs to render to.", GetPathName().GetCStr());
}
void MSAAResolvePass::FrameBeginInternal(FramePrepareParams params)
{
RenderPass::FrameBeginInternal(params);
}
void MSAAResolvePass::SetupFrameGraphDependencies(RHI::FrameGraphInterface frameGraph)
{
// Manually declare attachments since the resolve attachment is not supported by RenderPass
AZ_Assert(GetInputCount() == 1, "MSAAResolvePass only supports a single Input");
AZ_Assert(GetOutputCount() == 1, "MSAAResolvePass only supports a single Output");
const AZ::RPI::PassAttachmentBinding& copySource = GetInputBinding(0);
const AZ::RPI::PassAttachmentBinding& copyDest = GetOutputBinding(0);
frameGraph.UseColorAttachment(copySource.m_unifiedScopeDesc.GetAsImage());
RHI::ResolveScopeAttachmentDescriptor descriptor;
descriptor.m_attachmentId = copyDest.m_attachment->GetAttachmentId();
descriptor.m_loadStoreAction.m_loadAction = RHI::AttachmentLoadAction::DontCare;
descriptor.m_resolveAttachmentId = copySource.m_attachment->GetAttachmentId();
frameGraph.UseResolveAttachment(descriptor);
RenderPass::AddScopeQueryToFrameGraph(frameGraph);
}
void MSAAResolvePass::CompileResources([[maybe_unused]] const RHI::FrameGraphCompileContext& context)
{
}
void MSAAResolvePass::BuildCommandListInternal([[maybe_unused]] const RHI::FrameGraphExecuteContext& context)
{
}
bool MSAAResolvePass::IsEnabled() const
{
// check Pass base class first to see if the Pass is explicitly disabled
if (!Pass::IsEnabled())
{
return false;
}
// check render pipeline MSAA sample count
return (m_pipeline->GetRenderSettings().m_multisampleState.m_samples > 1);
}
} // namespace RPI
} // namespace AZ