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o3de/Gems/Atom/Asset/Shader/Code/Source/Editor/AzslShaderBuilderSystemComp...

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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
*
*/
#pragma once
#include <AzCore/Component/Component.h>
#include <Atom/RHI.Edit/ShaderPlatformInterfaceBus.h>
#include <Atom/RPI.Reflect/Shader/ShaderAsset.h>
#include "ShaderAssetBuilder.h"
#include "ShaderVariantAssetBuilder.h"
#include "PrecompiledShaderBuilder.h"
#include "ShaderPlatformInterfaceRequest.h"
namespace AZ
{
namespace ShaderBuilder
{
class AzslShaderBuilderSystemComponent
: public Component
, public RHI::ShaderPlatformInterfaceRegisterBus::Handler
, public ShaderPlatformInterfaceRequestBus::Handler
{
public:
AZ_COMPONENT(AzslShaderBuilderSystemComponent, "{56B5B944-8AF4-4478-A047-8DFDE38DA681}");
static void Reflect(ReflectContext* context);
static void GetProvidedServices(AZ::ComponentDescriptor::DependencyArrayType& provided);
static void GetIncompatibleServices(AZ::ComponentDescriptor::DependencyArrayType& incompatible);
static void GetRequiredServices(AZ::ComponentDescriptor::DependencyArrayType& required);
static void GetDependentServices(AZ::ComponentDescriptor::DependencyArrayType& dependent);
protected:
////////////////////////////////////////////////////////////////////////
// AzslShaderBuilderRequestBus interface implementation
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
// AZ::Component interface implementation
void Init() override;
void Activate() override;
void Deactivate() override;
////////////////////////////////////////////////////////////////////////
// ShaderPlatformInterfaceRegisterBus interface overrides ...
void RegisterShaderPlatformHandler(RHI::ShaderPlatformInterface* shaderPlatformInterface) override;
void UnregisterShaderPlatformHandler(RHI::ShaderPlatformInterface* shaderPlatformInterface) override;
// ShaderPlatformInterfaceRequestBus interface overrides ...
AZStd::vector<RHI::ShaderPlatformInterface*> GetShaderPlatformInterface(const AssetBuilderSDK::PlatformInfo& platformInfo) override;
private:
ShaderAssetBuilder m_shaderAssetBuilder;
// The ShaderVariantAssetBuilder can be disabled with this registry key.
// By default it is enabled. A user might want to disable it when doing look development
// work with shaders or doing lots of iterative changes to shaders. In these cases
// GPU performance doesn't matter at all so it is important to not waste time
// building ShaderVariantAssets (Other than the Root ShaderVariantAsset, of course.).
static constexpr char EnableShaderVariantAssetBuilderRegistryKey[] = "/O3DE/Atom/Shaders/BuildVariants";
bool m_enableShaderVariantAssetBuilder = true;
ShaderVariantAssetBuilder m_shaderVariantAssetBuilder;
PrecompiledShaderBuilder m_precompiledShaderBuilder;
/// Contains the ShaderPlatformInterface for all registered RHIs
AZStd::unordered_map<RHI::APIType, RHI::ShaderPlatformInterface*> m_shaderPlatformInterfaces;
};
} // ShaderBuilder
} //AZ