100 lines
4.9 KiB
C++
100 lines
4.9 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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//=======================================================================================//
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#ifndef IMAGECONVERSION_H
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#define IMAGECONVERSION_H
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#ifdef _WIN32
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#pragma once
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#endif
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#include "tier0/basetypes.h"
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class CUtlBuffer;
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struct Bitmap_t;
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enum ConversionErrorType
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{
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CE_SUCCESS,
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CE_MEMORY_ERROR,
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CE_CANT_OPEN_SOURCE_FILE,
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CE_ERROR_PARSING_SOURCE,
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CE_SOURCE_FILE_FORMAT_NOT_SUPPORTED,
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CE_SOURCE_FILE_TGA_FORMAT_NOT_SUPPORTED,
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CE_SOURCE_FILE_BMP_FORMAT_NOT_SUPPORTED,
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CE_SOURCE_FILE_SIZE_NOT_SUPPORTED,
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CE_ERROR_WRITING_OUTPUT_FILE,
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CE_ERROR_LOADING_DLL
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};
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enum ImageFileFormat
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{
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kImageFileFormat_PNG,
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kImageFileFormat_JPG,
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};
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struct TGAHeader {
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byte identsize; // size of ID field that follows 18 byte header (0 usually)
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byte colourmaptype; // type of colour map 0=none, 1=has palette
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byte imagetype; // type of image 0=none,1=indexed,2=rgb,3=grey,+8=rle packed
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short colourmapstart; // first colour map entry in palette
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short colourmaplength; // number of colours in palette
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byte colourmapbits; // number of bits per palette entry 15,16,24,32
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short xstart; // image x origin
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short ystart; // image y origin
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short width; // image width in pixels
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short height; // image height in pixels
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byte bits; // image bits per pixel 8,16,24,32
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byte descriptor; // image descriptor bits (vh flip bits)
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};
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ConversionErrorType ImgUtl_ConvertJPEGToTGA( const char *jpgPath, const char *tgaPath, bool bRequirePowerOfTwoSize = true );
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ConversionErrorType ImgUtl_ConvertBMPToTGA( const char *bmpPath, const char *tgaPath );
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ConversionErrorType ImgUtl_ConvertTGA( const char *tgaPath, int nMaxWidth = -1, int nMaxHeight = -1 );
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unsigned char *ImgUtl_ReadVTFAsRGBA( const char *vtfPath, int &width, int &height, ConversionErrorType &errcode );
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unsigned char *ImgUtl_ReadTGAAsRGBA( const char *tgaPath, int &width, int &height, ConversionErrorType &errcode, TGAHeader &tgaHeader );
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unsigned char *ImgUtl_ReadJPEGAsRGBA( const char *jpegPath, int &width, int &height, ConversionErrorType &errcode );
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unsigned char *ImgUtl_ReadBMPAsRGBA( const char *bmpPath, int &width, int &height, ConversionErrorType &errcode );
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unsigned char *ImgUtl_ReadPNGAsRGBA( const char *bmpPath, int &width, int &height, ConversionErrorType &errcode );
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unsigned char *ImgUtl_ReadPNGAsRGBAFromBuffer( CUtlBuffer &buffer, int &width, int &height, ConversionErrorType &errcode );
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unsigned char *ImgUtl_ReadImageAsRGBA( const char *path, int &width, int &height, ConversionErrorType &errcode );
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ConversionErrorType ImgUtl_StretchRGBAImage( const unsigned char *srcBuf, const int srcWidth, const int srcHeight, unsigned char *destBuf, const int destWidth, const int destHeight );
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ConversionErrorType ImgUtl_PadRGBAImage( const unsigned char *srcBuf, const int srcWidth, const int srcHeight, unsigned char *destBuf, const int destWidth, const int destHeight );
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ConversionErrorType ImgUtl_ConvertTGAToVTF( const char *tgaPath, int nMaxWidth = -1, int nMaxHeight = -1 );
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ConversionErrorType ImgUtl_WriteGenericVMT( const char *vtfPath, const char *pMaterialsSubDir );
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ConversionErrorType ImgUtl_WriteRGBAAsPNGToBuffer( const unsigned char *pRGBAData, int nWidth, int nHeight, CUtlBuffer &bufOutData, int nStride = 0 );
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ConversionErrorType ImgUtl_WriteRGBAAsJPEGToBuffer( const unsigned char *pRGBAData, int nWidth, int nHeight, CUtlBuffer &bufOutData, int nStride = 0 );
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//
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// Converts pInPath (which can be a TGA, BMP, or JPG file) to a VTF in pMaterialsSubDir, where
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// pMaterialsSubDir is a directory located relative to the game/materials directory. If the
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// output directory doesn't exist, it will be created. Dumps a generic VMT in pMaterialsSubDir
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// as well.
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//
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ConversionErrorType ImgUtl_ConvertToVTFAndDumpVMT( const char *pInPath, const char *pMaterialsSubDir,
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int nMaxWidth = -1, int nMaxHeight = -1 );
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/// Load from image file. We use the file extension to
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/// decide what file format to use
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ConversionErrorType ImgUtl_LoadBitmap( const char *pszFilename, Bitmap_t &bitmap );
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/// Load an image direct from memory buffer
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ConversionErrorType ImgUtl_LoadBitmapFromBuffer( CUtlBuffer &fileData, Bitmap_t &bitmap, ImageFileFormat eImageFileFormat );
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/// Save a bitmap to memory buffer
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ConversionErrorType ImgUtl_SaveBitmapToBuffer( CUtlBuffer &fileData, const Bitmap_t &bitmap, ImageFileFormat eImageFileFormat );
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/// Load a PNG direct from memory buffer
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ConversionErrorType ImgUtl_LoadPNGBitmapFromBuffer( CUtlBuffer &fileData, Bitmap_t &bitmap );
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/// Save a bitmap in PNG format to memory buffer
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ConversionErrorType ImgUtl_SavePNGBitmapToBuffer( CUtlBuffer &fileData, const Bitmap_t &bitmap );
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/// Resize a bitmap. This currently only works for RGBA images!
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ConversionErrorType ImgUtl_ResizeBitmap( Bitmap_t &destBitmap, int nWidth, int nHeight, const Bitmap_t *pImgSource = NULL );
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#endif // IMAGECONVERSION_H
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