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#rb ben.ingram #ROBOMERGE-SOURCE: CL 17278495 in //UE5/Main/... #ROBOMERGE-BOT: STARSHIP (Main -> Release-Engine-Test) (v858-17259218) [CL 17278506 by zousar shaker in ue5-release-engine-test branch]
465 lines
20 KiB
C++
465 lines
20 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "TextureBuildFunction.h"
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#include "DerivedDataCache.h"
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#include "DerivedDataPayload.h"
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#include "Engine/TextureDefines.h"
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#include "IImageWrapper.h"
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#include "IImageWrapperModule.h"
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#include "ImageCore.h"
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#include "Interfaces/ITextureFormat.h"
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#include "Interfaces/ITextureFormatModule.h"
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#include "Memory/CompositeBuffer.h"
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#include "Memory/SharedBuffer.h"
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#include "Modules/ModuleManager.h"
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#include "PixelFormat.h"
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#include "Serialization/CompactBinary.h"
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#include "Serialization/FileRegions.h"
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#include "Serialization/MemoryWriter.h"
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#include "TextureCompressorModule.h"
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#include "TextureFormatManager.h"
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DEFINE_LOG_CATEGORY_STATIC(LogTextureBuildFunction, Log, All);
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// Any edits to the texture compressor or this file that will change the output of texture builds
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// MUST have a corresponding change to this version. Individual texture formats have a version to
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// change that is specific to the format. A merge conflict affecting the version MUST be resolved
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// by generating a new version.
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static const FGuid TextureDerivedDataVersion(TEXT("0b123ca4-66c4-4ea4-b269-550de0c32eb1"));
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#ifndef CASE_ENUM_TO_TEXT
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#define CASE_ENUM_TO_TEXT(txt) case txt: return TEXT(#txt);
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#endif
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static const TCHAR* GetPixelFormatString(EPixelFormat InPixelFormat)
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{
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switch (InPixelFormat)
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{
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FOREACH_ENUM_EPIXELFORMAT(CASE_ENUM_TO_TEXT)
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default:
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return TEXT("PF_Unknown");
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}
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}
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static void ReadCbField(FCbFieldView Field, bool& OutValue) { OutValue = Field.AsBool(OutValue); }
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static void ReadCbField(FCbFieldView Field, int32& OutValue) { OutValue = Field.AsInt32(OutValue); }
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static void ReadCbField(FCbFieldView Field, uint8& OutValue) { OutValue = Field.AsUInt8(OutValue); }
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static void ReadCbField(FCbFieldView Field, uint32& OutValue) { OutValue = Field.AsUInt32(OutValue); }
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static void ReadCbField(FCbFieldView Field, float& OutValue) { OutValue = Field.AsFloat(OutValue); }
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static void ReadCbField(FCbFieldView Field, FName& OutValue)
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{
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if (Field.IsString())
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{
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OutValue = FName(FUTF8ToTCHAR(Field.AsString()));
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}
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}
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static void ReadCbField(FCbFieldView Field, FColor& OutValue)
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{
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FCbFieldViewIterator It = Field.AsArrayView().CreateViewIterator();
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OutValue.A = It++->AsUInt8(OutValue.A);
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OutValue.R = It++->AsUInt8(OutValue.R);
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OutValue.G = It++->AsUInt8(OutValue.G);
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OutValue.B = It++->AsUInt8(OutValue.B);
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}
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static void ReadCbField(FCbFieldView Field, FVector4& OutValue)
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{
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FCbFieldViewIterator It = Field.AsArrayView().CreateViewIterator();
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OutValue.X = It++->AsFloat(OutValue.X);
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OutValue.Y = It++->AsFloat(OutValue.Y);
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OutValue.Z = It++->AsFloat(OutValue.Z);
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OutValue.W = It++->AsFloat(OutValue.W);
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}
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static void ReadCbField(FCbFieldView Field, FIntPoint& OutValue)
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{
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FCbFieldViewIterator It = Field.AsArrayView().CreateViewIterator();
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OutValue.X = It++->AsInt32(OutValue.X);
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OutValue.Y = It++->AsInt32(OutValue.Y);
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}
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static FTextureBuildSettings ReadBuildSettingsFromCompactBinary(const FCbObjectView& Object)
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{
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FTextureBuildSettings BuildSettings;
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BuildSettings.FormatConfigOverride = Object["FormatConfigOverride"].AsObjectView();
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FCbObjectView ColorAdjustmentCbObj = Object["ColorAdjustment"].AsObjectView();
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FColorAdjustmentParameters& ColorAdjustment = BuildSettings.ColorAdjustment;
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ReadCbField(ColorAdjustmentCbObj["AdjustBrightness"], ColorAdjustment.AdjustBrightness);
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ReadCbField(ColorAdjustmentCbObj["AdjustBrightnessCurve"], ColorAdjustment.AdjustBrightnessCurve);
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ReadCbField(ColorAdjustmentCbObj["AdjustSaturation"], ColorAdjustment.AdjustSaturation);
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ReadCbField(ColorAdjustmentCbObj["AdjustVibrance"], ColorAdjustment.AdjustVibrance);
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ReadCbField(ColorAdjustmentCbObj["AdjustRGBCurve"], ColorAdjustment.AdjustRGBCurve);
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ReadCbField(ColorAdjustmentCbObj["AdjustHue"], ColorAdjustment.AdjustHue);
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ReadCbField(ColorAdjustmentCbObj["AdjustMinAlpha"], ColorAdjustment.AdjustMinAlpha);
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ReadCbField(ColorAdjustmentCbObj["AdjustMaxAlpha"], ColorAdjustment.AdjustMaxAlpha);
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ReadCbField(Object["AlphaCoverageThresholds"], BuildSettings.AlphaCoverageThresholds);
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ReadCbField(Object["MipSharpening"], BuildSettings.MipSharpening);
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ReadCbField(Object["DiffuseConvolveMipLevel"], BuildSettings.DiffuseConvolveMipLevel);
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ReadCbField(Object["SharpenMipKernelSize"], BuildSettings.SharpenMipKernelSize);
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ReadCbField(Object["MaxTextureResolution"], BuildSettings.MaxTextureResolution);
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ReadCbField(Object["TextureFormatName"], BuildSettings.TextureFormatName);
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ReadCbField(Object["bHDRSource"], BuildSettings.bHDRSource);
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ReadCbField(Object["MipGenSettings"], BuildSettings.MipGenSettings);
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BuildSettings.bCubemap = Object["bCubemap"].AsBool(BuildSettings.bCubemap);
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BuildSettings.bTextureArray = Object["bTextureArray"].AsBool(BuildSettings.bTextureArray);
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BuildSettings.bVolume = Object["bVolume"].AsBool(BuildSettings.bVolume);
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BuildSettings.bLongLatSource = Object["bLongLatSource"].AsBool(BuildSettings.bLongLatSource);
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BuildSettings.bSRGB = Object["bSRGB"].AsBool(BuildSettings.bSRGB);
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BuildSettings.bUseLegacyGamma = Object["bUseLegacyGamma"].AsBool(BuildSettings.bUseLegacyGamma);
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BuildSettings.bPreserveBorder = Object["bPreserveBorder"].AsBool(BuildSettings.bPreserveBorder);
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BuildSettings.bForceNoAlphaChannel = Object["bForceNoAlphaChannel"].AsBool(BuildSettings.bForceNoAlphaChannel);
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BuildSettings.bForceAlphaChannel = Object["bForceAlphaChannel"].AsBool(BuildSettings.bForceAlphaChannel);
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BuildSettings.bDitherMipMapAlpha = Object["bDitherMipMapAlpha"].AsBool(BuildSettings.bDitherMipMapAlpha);
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BuildSettings.bComputeBokehAlpha = Object["bComputeBokehAlpha"].AsBool(BuildSettings.bComputeBokehAlpha);
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BuildSettings.bReplicateRed = Object["bReplicateRed"].AsBool(BuildSettings.bReplicateRed);
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BuildSettings.bReplicateAlpha = Object["bReplicateAlpha"].AsBool(BuildSettings.bReplicateAlpha);
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BuildSettings.bDownsampleWithAverage = Object["bDownsampleWithAverage"].AsBool(BuildSettings.bDownsampleWithAverage);
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BuildSettings.bSharpenWithoutColorShift = Object["bSharpenWithoutColorShift"].AsBool(BuildSettings.bSharpenWithoutColorShift);
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BuildSettings.bBorderColorBlack = Object["bBorderColorBlack"].AsBool(BuildSettings.bBorderColorBlack);
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BuildSettings.bFlipGreenChannel = Object["bFlipGreenChannel"].AsBool(BuildSettings.bFlipGreenChannel);
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BuildSettings.bApplyYCoCgBlockScale = Object["bApplyYCoCgBlockScale"].AsBool(BuildSettings.bApplyYCoCgBlockScale);
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BuildSettings.bApplyKernelToTopMip = Object["bApplyKernelToTopMip"].AsBool(BuildSettings.bApplyKernelToTopMip);
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BuildSettings.bRenormalizeTopMip = Object["bRenormalizeTopMip"].AsBool(BuildSettings.bRenormalizeTopMip);
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ReadCbField(Object["CompositeTextureMode"], BuildSettings.CompositeTextureMode);
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ReadCbField(Object["CompositePower"], BuildSettings.CompositePower);
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ReadCbField(Object["LODBias"], BuildSettings.LODBias);
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ReadCbField(Object["LODBiasWithCinematicMips"], BuildSettings.LODBiasWithCinematicMips);
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ReadCbField(Object["TopMipSize"], BuildSettings.TopMipSize);
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ReadCbField(Object["VolumeSizeZ"], BuildSettings.VolumeSizeZ);
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ReadCbField(Object["ArraySlices"], BuildSettings.ArraySlices);
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BuildSettings.bStreamable = Object["bStreamable"].AsBool(BuildSettings.bStreamable);
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BuildSettings.bVirtualStreamable = Object["bVirtualStreamable"].AsBool(BuildSettings.bVirtualStreamable);
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BuildSettings.bChromaKeyTexture = Object["bChromaKeyTexture"].AsBool(BuildSettings.bChromaKeyTexture);
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ReadCbField(Object["PowerOfTwoMode"], BuildSettings.PowerOfTwoMode);
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ReadCbField(Object["PaddingColor"], BuildSettings.PaddingColor);
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ReadCbField(Object["ChromaKeyColor"], BuildSettings.ChromaKeyColor);
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ReadCbField(Object["ChromaKeyThreshold"], BuildSettings.ChromaKeyThreshold);
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ReadCbField(Object["CompressionQuality"], BuildSettings.CompressionQuality);
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ReadCbField(Object["LossyCompressionAmount"], BuildSettings.LossyCompressionAmount);
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ReadCbField(Object["Downscale"], BuildSettings.Downscale);
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ReadCbField(Object["DownscaleOptions"], BuildSettings.DownscaleOptions);
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ReadCbField(Object["VirtualAddressingModeX"], BuildSettings.VirtualAddressingModeX);
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ReadCbField(Object["VirtualAddressingModeY"], BuildSettings.VirtualAddressingModeY);
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ReadCbField(Object["VirtualTextureTileSize"], BuildSettings.VirtualTextureTileSize);
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ReadCbField(Object["VirtualTextureBorderSize"], BuildSettings.VirtualTextureBorderSize);
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BuildSettings.bVirtualTextureEnableCompressZlib = Object["bVirtualTextureEnableCompressZlib"].AsBool(BuildSettings.bVirtualTextureEnableCompressZlib);
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BuildSettings.bVirtualTextureEnableCompressCrunch = Object["bVirtualTextureEnableCompressCrunch"].AsBool(BuildSettings.bVirtualTextureEnableCompressCrunch);
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BuildSettings.FastTextureEncode = (ETextureFastEncode) Object["FastTextureEncode"].AsUInt8((uint8)BuildSettings.FastTextureEncode);
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return BuildSettings;
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}
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static void ReadOutputSettingsFromCompactBinary(const FCbObjectView& Object, int32& NumInlineMips, FString& MipKeyPrefix)
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{
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NumInlineMips = Object["NumInlineMips"].AsInt32();
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MipKeyPrefix = FUTF8ToTCHAR(Object["MipKeyPrefix"].AsString());
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}
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static ERawImageFormat::Type ComputeRawImageFormat(ETextureSourceFormat SourceFormat)
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{
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switch (SourceFormat)
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{
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case TSF_G8: return ERawImageFormat::G8;
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case TSF_G16: return ERawImageFormat::G16;
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case TSF_BGRA8: return ERawImageFormat::BGRA8;
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case TSF_BGRE8: return ERawImageFormat::BGRE8;
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case TSF_RGBA16: return ERawImageFormat::RGBA16;
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case TSF_RGBA16F: return ERawImageFormat::RGBA16F;
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default:
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checkf(false, TEXT("Invalid source texture format encountered: %d."), SourceFormat);
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return ERawImageFormat::G8;
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}
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}
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static bool TryReadTextureSourceFromCompactBinary(FCbFieldView Source, UE::DerivedData::FBuildContext& Context, TArray<FImage>& OutMips)
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{
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FSharedBuffer InputBuffer = Context.FindInput(FUTF8ToTCHAR(Source.GetName()));
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if (!InputBuffer)
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{
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UE_LOG(LogTextureBuildFunction, Error, TEXT("Missing input '%s'."), *WriteToString<64>(FUTF8ToTCHAR(Source.GetName())));
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return false;
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}
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ETextureSourceCompressionFormat CompressionFormat = (ETextureSourceCompressionFormat)Source["CompressionFormat"].AsUInt8();
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ETextureSourceFormat SourceFormat = (ETextureSourceFormat)Source["SourceFormat"].AsUInt8();
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ERawImageFormat::Type RawImageFormat = ComputeRawImageFormat(SourceFormat);
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EGammaSpace GammaSpace = (EGammaSpace)Source["GammaSpace"].AsUInt8();
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int32 NumSlices = Source["NumSlices"].AsInt32();
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int32 SizeX = Source["SizeX"].AsInt32();
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int32 SizeY = Source["SizeY"].AsInt32();
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int32 MipSizeX = SizeX;
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int32 MipSizeY = SizeY;
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const uint8* DecompressedSourceData = (const uint8*)InputBuffer.GetData();
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TArray64<uint8> IntermediateDecompressedData;
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if (CompressionFormat != TSCF_None)
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{
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switch (CompressionFormat)
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{
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case TSCF_JPEG:
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{
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TSharedPtr<IImageWrapper> ImageWrapper = FModuleManager::GetModuleChecked<IImageWrapperModule>(FName("ImageWrapper")).CreateImageWrapper(EImageFormat::JPEG);
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ImageWrapper->SetCompressed((const uint8*)InputBuffer.GetData(), InputBuffer.GetSize());
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ImageWrapper->GetRaw(SourceFormat == TSF_G8 ? ERGBFormat::Gray : ERGBFormat::BGRA, 8, IntermediateDecompressedData);
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}
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break;
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case TSCF_PNG:
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{
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TSharedPtr<IImageWrapper> ImageWrapper = FModuleManager::GetModuleChecked<IImageWrapperModule>(FName("ImageWrapper")).CreateImageWrapper(EImageFormat::PNG);
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ImageWrapper->SetCompressed((const uint8*)InputBuffer.GetData(), InputBuffer.GetSize());
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ERGBFormat RawFormat = (SourceFormat == TSF_G8 || SourceFormat == TSF_G16) ? ERGBFormat::Gray : ERGBFormat::RGBA;
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ImageWrapper->GetRaw(RawFormat, (SourceFormat == TSF_G16 || SourceFormat == TSF_RGBA16) ? 16 : 8, IntermediateDecompressedData);
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}
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break;
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default:
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UE_LOG(LogTextureBuildFunction, Error, TEXT("Unexpected source compression format encountered while attempting to build a texture."));
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return false;
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}
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DecompressedSourceData = IntermediateDecompressedData.GetData();
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InputBuffer.Reset();
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}
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FCbArrayView MipsCbArrayView = Source["Mips"].AsArrayView();
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OutMips.Reserve(MipsCbArrayView.Num());
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for (FCbFieldView MipsCbArrayIt : MipsCbArrayView)
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{
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FCbObjectView MipCbObjectView = MipsCbArrayIt.AsObjectView();
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int64 MipOffset = MipCbObjectView["Offset"].AsInt64();
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int64 MipSize = MipCbObjectView["Size"].AsInt64();
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FImage* SourceMip = new(OutMips) FImage(
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MipSizeX, MipSizeY,
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NumSlices,
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RawImageFormat,
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GammaSpace
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);
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if ((MipsCbArrayView.Num() == 1) && (CompressionFormat != TSCF_None))
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{
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// In the case where there is only one mip and its already in a TArray, there is no need to allocate new array contents, just use a move instead
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SourceMip->RawData = MoveTemp(IntermediateDecompressedData);
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}
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else
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{
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SourceMip->RawData.AddUninitialized(MipSize);
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FMemory::Memcpy(
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SourceMip->RawData.GetData(),
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DecompressedSourceData + MipOffset,
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MipSize
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);
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}
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MipSizeX = FMath::Max(MipSizeX / 2, 1);
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MipSizeY = FMath::Max(MipSizeY / 2, 1);
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}
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return true;
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}
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FGuid FTextureBuildFunction::GetVersion() const
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{
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UE::DerivedData::FBuildVersionBuilder Builder;
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Builder << TextureDerivedDataVersion;
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ITextureFormat* TextureFormat = nullptr;
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GetVersion(Builder, TextureFormat);
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if (TextureFormat)
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{
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TArray<FName> SupportedFormats;
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TextureFormat->GetSupportedFormats(SupportedFormats);
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TArray<uint16> SupportedFormatVersions;
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for (const FName& SupportedFormat : SupportedFormats)
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{
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SupportedFormatVersions.AddUnique(TextureFormat->GetVersion(SupportedFormat));
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}
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SupportedFormatVersions.Sort();
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Builder << SupportedFormatVersions;
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}
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return Builder.Build();
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}
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void FTextureBuildFunction::Configure(UE::DerivedData::FBuildConfigContext& Context) const
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{
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Context.SetCacheBucket(UE::DerivedData::FCacheBucket("Texture"_ASV));
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}
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void FTextureBuildFunction::Build(UE::DerivedData::FBuildContext& Context) const
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{
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const FCbObject Settings = Context.FindConstant(TEXT("Settings"_SV));
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if (!Settings)
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{
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UE_LOG(LogTextureBuildFunction, Error, TEXT("Settings are not available."));
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return;
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}
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const FTextureBuildSettings BuildSettings = ReadBuildSettingsFromCompactBinary(Settings["Build"].AsObjectView());
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const uint16 RequiredTextureFormatVersion = Settings["FormatVersion"].AsUInt16();
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if (ITextureFormatManagerModule* TFM = GetTextureFormatManager())
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{
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const ITextureFormat* TextureFormat = TFM->FindTextureFormat(BuildSettings.TextureFormatName);
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const uint16 CurrentTextureFormatVersion = TextureFormat ? TextureFormat->GetVersion(BuildSettings.TextureFormatName, &BuildSettings) : 0;
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if (CurrentTextureFormatVersion != RequiredTextureFormatVersion)
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{
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UE_LOG(LogTextureBuildFunction, Error, TEXT("%s has version %hu when version %hu is required."),
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*BuildSettings.TextureFormatName.ToString(), CurrentTextureFormatVersion, RequiredTextureFormatVersion);;
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return;
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}
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}
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int32 NumInlineMips;
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FString MipKeyPrefix;
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ReadOutputSettingsFromCompactBinary(Settings["Output"].AsObjectView(), NumInlineMips, MipKeyPrefix);
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TArray<FImage> SourceMips;
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if (!TryReadTextureSourceFromCompactBinary(Settings["Source"], Context, SourceMips))
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{
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return;
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}
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TArray<FImage> AssociatedNormalSourceMips;
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if (FCbFieldView CompositeSource = Settings["CompositeSource"];
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CompositeSource && !TryReadTextureSourceFromCompactBinary(CompositeSource, Context, AssociatedNormalSourceMips))
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{
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return;
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}
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UE_LOG(LogTextureBuildFunction, Display, TEXT("Compressing %d source mip(s) (%dx%d) to %s..."), SourceMips.Num(), SourceMips[0].SizeX, SourceMips[0].SizeY, *BuildSettings.TextureFormatName.ToString());
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TArray<FCompressedImage2D> CompressedMips;
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uint32 NumMipsInTail;
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uint32 ExtData;
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bool bBuildSucceeded = FModuleManager::GetModuleChecked<ITextureCompressorModule>(TEXTURE_COMPRESSOR_MODULENAME).BuildTexture(
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SourceMips,
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AssociatedNormalSourceMips,
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BuildSettings,
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CompressedMips,
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NumMipsInTail,
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ExtData);
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if (!bBuildSucceeded)
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{
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return;
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}
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check(CompressedMips.Num() > 0);
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int32 MipCount = CompressedMips.Num();
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const bool bForceAllMipsToBeInlined = BuildSettings.bCubemap || (BuildSettings.bVolume && !BuildSettings.bStreamable) || (BuildSettings.bTextureArray && !BuildSettings.bStreamable);
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const int32 FirstInlineMip = bForceAllMipsToBeInlined ? 0 : FMath::Max(0, MipCount - FMath::Max(NumInlineMips, (int32)NumMipsInTail));
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// Write out texture platform data and non-streaming mip tail as a single payload
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// This is meant to match the behavior in SerializePlatformData in TextureDerivedData.cpp.
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// TODO: The texture header/footer information here should not be serialized from the worker but could be left to the editor to fill in.
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// Doing it here causes more code duplication than I would like.
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{
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bool bHasOptData = (NumMipsInTail != 0) || (ExtData != 0);
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TArray<FSharedBuffer> OrderedBuffers;
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TArray<uint8> TextureHeaderArray;
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FMemoryWriter TextureHeaderWriter(TextureHeaderArray, /*bIsPersistent=*/ true);
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TextureHeaderWriter << CompressedMips[0].SizeX;
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TextureHeaderWriter << CompressedMips[0].SizeY;
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const int32 NumSlices = (BuildSettings.bVolume || BuildSettings.bTextureArray) ? CompressedMips[0].SizeZ : BuildSettings.bCubemap ? 6 : 1;
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static constexpr uint32 BitMask_CubeMap = 1u << 31u;
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static constexpr uint32 BitMask_HasOptData = 1u << 30u;
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static constexpr uint32 BitMask_NumSlices = BitMask_HasOptData - 1u;
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uint32 PackedData = (NumSlices & BitMask_NumSlices) | (BuildSettings.bCubemap ? BitMask_CubeMap : 0) | (bHasOptData ? BitMask_HasOptData : 0);
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TextureHeaderWriter << PackedData;
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FString PixelFormatString(GetPixelFormatString((EPixelFormat)CompressedMips[0].PixelFormat));
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TextureHeaderWriter << PixelFormatString;
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if (bHasOptData)
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{
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TextureHeaderWriter << ExtData;
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TextureHeaderWriter << NumMipsInTail;
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}
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TextureHeaderWriter << MipCount;
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OrderedBuffers.Add(FSharedBuffer::MakeView(TextureHeaderArray.GetData(), TextureHeaderArray.Num()));
|
|
|
|
int64 CurrentOffset = TextureHeaderArray.Num();
|
|
for (int32 MipIndex = 0; MipIndex < MipCount; ++MipIndex)
|
|
{
|
|
bool bIsInlineMip = MipIndex >= FirstInlineMip;
|
|
FCompressedImage2D& CompressedMip = CompressedMips[MipIndex];
|
|
|
|
TArray<uint8> MipHeader;
|
|
FMemoryWriter MipHeaderWriter(MipHeader, /*bIsPersistent=*/ true);
|
|
bool bCooked = false;
|
|
MipHeaderWriter << bCooked;
|
|
|
|
uint32 BulkDataFlags = 0;
|
|
MipHeaderWriter << BulkDataFlags;
|
|
|
|
int32 BulkDataElementCount = bIsInlineMip ? CompressedMip.RawData.Num() : 0;
|
|
MipHeaderWriter << BulkDataElementCount;
|
|
|
|
int32 BulkDataBytesOnDisk = bIsInlineMip ? CompressedMip.RawData.Num() : 0;
|
|
MipHeaderWriter << BulkDataBytesOnDisk;
|
|
|
|
int64 BulkDataOffset = CurrentOffset + MipHeader.Num() + sizeof(int64);
|
|
MipHeaderWriter << BulkDataOffset;
|
|
|
|
CurrentOffset += MipHeader.Num();
|
|
OrderedBuffers.Add(MakeSharedBufferFromArray(MoveTemp(MipHeader)));
|
|
|
|
if (bIsInlineMip)
|
|
{
|
|
OrderedBuffers.Add(FSharedBuffer::MakeView(CompressedMip.RawData.GetData(), CompressedMip.RawData.Num()));
|
|
CurrentOffset += CompressedMip.RawData.Num();
|
|
}
|
|
|
|
TArray<uint8> MipFooter;
|
|
FMemoryWriter MipFooterWriter(MipFooter, /*bIsPersistent=*/ true);
|
|
|
|
MipFooterWriter << CompressedMip.SizeX;
|
|
MipFooterWriter << CompressedMip.SizeY;
|
|
MipFooterWriter << CompressedMip.SizeZ;
|
|
|
|
EFileRegionType FileRegion = FFileRegion::SelectType(EPixelFormat(CompressedMip.PixelFormat));
|
|
MipFooterWriter << FileRegion;
|
|
|
|
TStringBuilder<512> DerivedDataKey;
|
|
if (!bIsInlineMip)
|
|
{
|
|
// This has to match the behavior in GetTextureDerivedMipKey in TextureDerivedData.cpp
|
|
DerivedDataKey << MipKeyPrefix;
|
|
DerivedDataKey.Appendf(TEXT("_MIP%u_%dx%d"), MipIndex, CompressedMip.SizeX, CompressedMip.SizeY);
|
|
}
|
|
FString DerivedDataKeyFinal(DerivedDataKey.ToString());
|
|
MipFooterWriter << DerivedDataKeyFinal;
|
|
|
|
CurrentOffset += MipFooter.Num();
|
|
OrderedBuffers.Add(MakeSharedBufferFromArray(MoveTemp(MipFooter)));
|
|
}
|
|
|
|
// Bool serialized as 32-bit int is the footer
|
|
uint32 IsVirtual = 0;
|
|
OrderedBuffers.Add(FSharedBuffer::MakeView(&IsVirtual, sizeof(IsVirtual)));
|
|
|
|
FCompositeBuffer CompositeResult(OrderedBuffers);
|
|
Context.AddPayload(UE::DerivedData::FPayloadId::FromName(TEXT("Texture"_SV)), CompositeResult);
|
|
}
|
|
|
|
// Write out streaming mips as payloads.
|
|
const int32 WritableMipCount = MipCount - ((NumMipsInTail > 0) ? ((int32)NumMipsInTail - 1) : 0);
|
|
for (int32 MipIndex = 0; MipIndex < WritableMipCount; ++MipIndex)
|
|
{
|
|
if (MipIndex < FirstInlineMip)
|
|
{
|
|
FCompressedImage2D& CompressedMip = CompressedMips[MipIndex];
|
|
TStringBuilder<32> PayloadName;
|
|
PayloadName << "Mip" << MipIndex;
|
|
|
|
FSharedBuffer MipData = MakeSharedBufferFromArray(MoveTemp(CompressedMip.RawData));
|
|
Context.AddPayload(UE::DerivedData::FPayloadId::FromName(*PayloadName), MipData);
|
|
}
|
|
}
|
|
}
|