102 lines
3.6 KiB
C++
102 lines
3.6 KiB
C++
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// Copyright Epic Games, Inc. All Rights Reserved.
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#include "Factories/Texture2DArrayFactory.h"
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#include "Styling/SlateBrush.h"
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#include "Brushes/SlateDynamicImageBrush.h"
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#include "Engine/Texture2DArray.h"
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#define LOCTEXT_NAMESPACE "Texture2DArrayFactory"
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UTexture2DArrayFactory::UTexture2DArrayFactory(const FObjectInitializer& ObjectInitializer)
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: Super(ObjectInitializer)
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{
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bCreateNew = true;
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bEditAfterNew = true;
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SupportedClass = UTexture2DArray::StaticClass();
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}
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FText UTexture2DArrayFactory::GetDisplayName() const
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{
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return LOCTEXT("Texture2DArrayFactoryDescription", "Texture 2D Array");
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}
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bool UTexture2DArrayFactory::ConfigureProperties()
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{
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return true;
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}
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bool UTexture2DArrayFactory::CanCreateNew() const
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{
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static const auto AllowTextureArrayAssetCreationVar = IConsoleManager::Get().FindTConsoleVariableDataInt(TEXT("r.AllowTexture2DArrayCreation"));
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return (AllowTextureArrayAssetCreationVar->GetValueOnGameThread() == 1);
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}
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UObject* UTexture2DArrayFactory::FactoryCreateNew(UClass* Class, UObject* InParent, FName Name, EObjectFlags Flags, UObject* Context, FFeedbackContext* Warn)
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{
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static const auto AllowTextureArrayAssetCreationVar = IConsoleManager::Get().FindTConsoleVariableDataInt(TEXT("r.AllowTexture2DArrayCreation"));
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if (AllowTextureArrayAssetCreationVar->GetValueOnGameThread() == 0)
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{
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UE_LOG(LogTexture, Warning, TEXT("Texture2DArray creation failed. Enable by using console command r.AllowTexture2DArrayCreation\n"));
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return nullptr;
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}
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// Make sure the size of all textures is the same.
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if (!CheckArrayTexturesCompatibility())
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{
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return nullptr;
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}
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UTexture2DArray* NewTexture2DArray = CastChecked<UTexture2DArray>(CreateOrOverwriteAsset(UTexture2DArray::StaticClass(), InParent, Name, Flags));
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if (NewTexture2DArray == 0)
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{
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UE_LOG(LogTexture, Warning, TEXT("Texture2DArray creation failed.\n"));
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}
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else if (InitialTextures.Num() > 0)
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{
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// Upload the compatible textures to the texture array.
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for (int32 TextureIndex = 0; TextureIndex < InitialTextures.Num(); ++TextureIndex)
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{
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NewTexture2DArray->SourceTextures.Add(InitialTextures[TextureIndex]);
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}
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// Create the texture array resource and corresponding rhi resource.
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NewTexture2DArray->UpdateSourceFromSourceTextures();
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}
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return NewTexture2DArray;
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}
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bool UTexture2DArrayFactory::CheckArrayTexturesCompatibility()
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{
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bool bError = false;
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for (int32 TextureIndex = 0; TextureIndex < InitialTextures.Num(); ++TextureIndex)
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{
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FTextureSource& TextureSource = InitialTextures[TextureIndex]->Source;
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const int32 FormatDataSize = TextureSource.GetBytesPerPixel();
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const int32 SizeX = TextureSource.GetSizeX();
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const int32 SizeY = TextureSource.GetSizeY();
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for (int32 TextureCmpIndex = TextureIndex + 1; TextureCmpIndex < InitialTextures.Num(); ++TextureCmpIndex)
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{
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FTextureSource& TextureSourceCmp = InitialTextures[TextureCmpIndex]->Source;
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if (TextureSourceCmp.GetSizeX() != SizeX || TextureSourceCmp.GetSizeY() != SizeY)
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{
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UE_LOG(LogTexture, Warning, TEXT("Texture2DArray creation failed. Textures have different sizes."));
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bError = true;
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}
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if (TextureSourceCmp.GetBytesPerPixel() != FormatDataSize)
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{
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UE_LOG(LogTexture, Warning, TEXT("Texture2DArray creation failed. Textures have different pixel formats."));
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bError = true;
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}
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}
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}
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return (!bError);
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}
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#undef LOCTEXT_NAMESPACE
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