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79 lines
3.1 KiB
C++
79 lines
3.1 KiB
C++
/*
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* Copyright (c) Contributors to the Open 3D Engine Project.
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* For complete copyright and license terms please see the LICENSE at the root of this distribution.
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*
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* SPDX-License-Identifier: Apache-2.0 OR MIT
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*
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*/
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// Description : Image utilities.
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#pragma once
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#include <Include/IImageUtil.h>
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/*!
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* Utility Class to manipulate images.
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*/
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class SANDBOX_API CImageUtil
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{
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public:
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//////////////////////////////////////////////////////////////////////////
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// Image loading.
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//////////////////////////////////////////////////////////////////////////
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//! Load image, detect image type by file extension.
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// Arguments:
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// pQualityLoss - 0 if info is not needed, pointer to the result otherwise - not need to preinitialize
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static bool LoadImage(const QString& fileName, CImageEx& image, bool* pQualityLoss = 0);
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//! Save image, detect image type by file extension.
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static bool SaveImage(const QString& fileName, CImageEx& image);
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// General image fucntions
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static bool LoadJPEG(const QString& strFileName, CImageEx& image);
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static bool SaveJPEG(const QString& strFileName, CImageEx& image);
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static bool SaveBitmap(const QString& szFileName, CImageEx& image);
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static bool LoadBmp(const QString& file, CImageEx& image);
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//! Save image in PGM format.
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static bool SavePGM(const QString& fileName, const CImageEx& image);
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//! Load image in PGM format.
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static bool LoadPGM(const QString& fileName, CImageEx& image);
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//////////////////////////////////////////////////////////////////////////
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// Image scaling.
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//////////////////////////////////////////////////////////////////////////
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//! Scale source image to fit size of target image.
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static void ScaleToFit(const CByteImage& srcImage, CByteImage& trgImage);
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//! Scale source image to fit size of target image.
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static void ScaleToFit(const CImageEx& srcImage, CImageEx& trgImage);
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//! Scale source image to fit twice side by side in target image.
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static void ScaleToDoubleFit(const CImageEx& srcImage, CImageEx& trgImage);
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//! Scale source image twice down image with filering
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static void DownScaleSquareTextureTwice(const CImageEx& srcImage, CImageEx& trgImage, IImageUtil::_EAddrMode eAddressingMode = IImageUtil::WRAP);
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//! Smooth image.
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static void SmoothImage(CByteImage& image, int numSteps);
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//////////////////////////////////////////////////////////////////////////
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// filtered lookup
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//////////////////////////////////////////////////////////////////////////
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//! behaviour outside of the texture is not defined
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//! \param iniX in fix point 24.8
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//! \param iniY in fix point 24.8
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//! \return 0..255
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static unsigned char GetBilinearFilteredAt(const int iniX256, const int iniY256, const CByteImage& image);
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static bool QImageToImage(const QImage& bitmap, CImageEx& image);
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static bool ImageToQImage(const CImageEx& image, QImage& bitmapObj);
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private:
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static bool Load(const QString& fileName, CImageEx& image);
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static bool Save(const QString& strFileName, CImageEx& inImage);
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};
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