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[FYI] Dan.Thompson Original CL Desc ----------------------------------------------------------------- Removing texture build metadata due to ddc complexities. It will be added to the metadata system in the new build flow SoonTM. Additionally, the alpha information for the source mips is no longer necessary as that is computed elsewhere now. #rb fabian.giesen #jira UE-183750 [CL 30772772 by evgenii babinets in ue5-main branch]
90 lines
3.3 KiB
C++
90 lines
3.3 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "ImageCore.h"
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#include "Interfaces/ITextureFormat.h"
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struct FTextureBuildSettings;
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/***
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TextureBuildUtilities is a utility module for shared code that Engine and TextureBuildWorker (no Engine) can both see
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for Texture-related functions that don't need Texture.h/UTexture
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TextureBuildUtilities is hard-linked to the Engine so no LoadModule/ModuleInterface is needed
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***/
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namespace UE
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{
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namespace TextureBuildUtilities
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{
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enum
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{
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// The width and height of the placeholder gpu texture we create when the texture is cpu accessible.
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PLACEHOLDER_TEXTURE_SIZE = 4
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};
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namespace EncodedTextureExtendedData
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{
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TEXTUREBUILDUTILITIES_API FCbObject ToCompactBinary(const FEncodedTextureExtendedData& InExtendedData);
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TEXTUREBUILDUTILITIES_API bool FromCompactBinary(FEncodedTextureExtendedData& OutExtendedData, FCbObject InCbObject);
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}
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namespace EncodedTextureDescription
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{
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TEXTUREBUILDUTILITIES_API FCbObject ToCompactBinary(const FEncodedTextureDescription& InDescription);
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TEXTUREBUILDUTILITIES_API bool FromCompactBinary(FEncodedTextureDescription& OutDescription, FCbObject InCbObject);
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}
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namespace TextureEngineParameters
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{
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TEXTUREBUILDUTILITIES_API FCbObject ToCompactBinaryWithDefaults(const FTextureEngineParameters& InEngineParameters);
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TEXTUREBUILDUTILITIES_API bool FromCompactBinary(FTextureEngineParameters& OutEngineParameters, FCbObject InCbObject);
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}
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// Carries information out of the build that we don't want to cook or save off in the runtime
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struct TEXTUREBUILDUTILITIES_API FTextureBuildMetadata
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{
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// Whether or not the first mip level of the source has alpha detected. This is used e.g.
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// picking between BC1 and BC3
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bool bSourceMipsAlphaDetected = false;
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// Digests of the data at various processing stages so we can track down determinism issues
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// that arise.
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uint64 PreEncodeMipsHash = 0;
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FCbObject ToCompactBinaryWithDefaults() const;
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FTextureBuildMetadata(FCbObject InCbObject);
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FTextureBuildMetadata() = default;
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};
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TEXTUREBUILDUTILITIES_API bool TextureFormatIsHdr(FName const& InName);
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// Removes platform and other custom prefixes from the name.
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// Returns plain format name and the non-platform prefix (with trailing underscore).
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// i.e. PLAT_BLAH_AutoDXT returns AutoDXT and writes BLAH_ to OutPrefix.
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TEXTUREBUILDUTILITIES_API const FName TextureFormatRemovePrefixFromName(FName const& InName, FName& OutPrefix);
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// removes platform prefix but leaves other custom prefixes :
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TEXTUREBUILDUTILITIES_API const FName TextureFormatRemovePlatformPrefixFromName(FName const& InName);
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FORCEINLINE const FName TextureFormatRemovePrefixFromName(FName const& InName)
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{
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FName OutPrefix;
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return TextureFormatRemovePrefixFromName(InName,OutPrefix);
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}
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// Get the format to use for output of the VT Intermediate stage, cutting into tiles and processing
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// the next step will then encode from this format to the desired output format
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TEXTUREBUILDUTILITIES_API ERawImageFormat::Type GetVirtualTextureBuildIntermediateFormat(const FTextureBuildSettings& BuildSettings);
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TEXTUREBUILDUTILITIES_API void GetPlaceholderTextureImageInfo(FImageInfo* OutImageInfo);
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TEXTUREBUILDUTILITIES_API void GetPlaceholderTextureImage(FImage* OutImage);
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} // namespace TextureBuildUtilities
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} // namespace UE
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