149 lines
3.5 KiB
C
149 lines
3.5 KiB
C
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// cdib.h
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#ifndef _INC_DIB
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#define _INC_DIB
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#define BMP_IMAGE 0
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#define TIFF_IMAGE 1
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//////////////////////////////////////////
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//////// DIB/BMP HEADER DEFINES //////////
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//////////////////////////////////////////
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#define PALVERSION 0x300
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#define DIB_HEADER_MARKER ((WORD) ('M' << 8) | 'B')
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// macros
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#define RECTWIDTH(lpRect) ((lpRect)->right - (lpRect)->left)
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#define RECTHEIGHT(lpRect) ((lpRect)->bottom - (lpRect)->top)
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// WIDTHBYTES performs DWORD-aligning of DIB scanlines. The "bits"
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// parameter is the bit count for the scanline (biWidth * biBitCount),
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// and this macro returns the number of DWORD-aligned bytes needed
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// to hold those bits.
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#define WIDTHBYTES(bits) (((bits) + 31) / 32 * 4)
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//////////////////////////////////////////
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//////////////////////////////////////////
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//////////////////////////////////////////
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////////// TIFF HEADER DEFINES ///////////
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//////////////////////////////////////////
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typedef struct TIFFFILEHEADERtag {
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char tfByteOrder[2];
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short tfType;
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long tfOffset;
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}TIFFFILEHEADER;
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typedef struct TIFFTAGtag {
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short ttTag;
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short ttType;
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long ttCount;
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long ttOffset;
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}TIFFTAG;
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#define TIFFBYTE unsigned int
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#define TIFFASCII char*
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typedef struct TIFFRATIONALtag {
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long trNumerator;
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long trDenominator;
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}TIFFRATIONAL;
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typedef struct TIFFTODIBDATAtag {
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BITMAPINFOHEADER bmiHeader;
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TIFFRATIONAL xResolution;
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TIFFRATIONAL yResolution;
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long ResolutionUnit;
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long RowsPerStrip;
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long StripOffsets;
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long StripByteCounts;
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long ColorsUsed;
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char Software[30];
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char Author[30];
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char Description[30];
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long CompressionType;
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long *pStripOffsets;
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long *pStripByteCountsOffsets;
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int OffsetCount;
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}TIFFTODIBDATA;
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#define TIFF_NEWSUBFILETYPE 254 // long
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#define TIFF_IMAGEWIDTH 256 // short or long
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#define TIFF_LENGTH 257 // short or long
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#define TIFF_BITSPERSAMPLE 258 // short
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#define TIFF_COMPRESSION 259 // short
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#define TIFF_PHOTOINTERP 262 // short
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#define TIFF_IMAGEDESCRIPTION 270 // ASCII
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#define TIFF_STRIPOFFSETS 273 // short or long
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#define TIFF_ORIENTATION 274 // short
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#define TIFF_SAMPLESPERPIXEL 277 // short
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#define TIFF_ROWSPERSTRIP 278 // short or long
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#define TIFF_STRIPBYTECOUNTS 279 // short or long
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#define TIFF_XRESOLUTION 282 // TIFFRATIONAL
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#define TIFF_YRESOLUTION 283 // TIFFRATIONAL
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#define TIFF_RESOLUTIONUNIT 296 // short
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#define TIFF_SOFTWARE 305 // ASCII
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//////////////////////////////////////////
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//////////////////////////////////////////
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class CDib : public CObject
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{
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DECLARE_DYNAMIC(CDib)
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// Constructors
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public:
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CDib();
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int change;
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// Attributes
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protected:
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LPBYTE m_pBits;
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LPBITMAPINFO m_pBMI;
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public:
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CPalette* m_pPalette;
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public:
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DWORD Width() const;
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DWORD Height() const;
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WORD NumColors() const;
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BOOL IsValid() const { return (m_pBMI != NULL); }
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// Operations
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public:
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BOOL Paint(HDC, LPRECT, LPRECT) const;
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HGLOBAL CopyToHandle() const;
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DWORD Save(CFile& file) const;
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DWORD Read(CFile& file,int FileType);
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DWORD ReadFromHandle(HGLOBAL hGlobal);
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void Invalidate() { Free(); }
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virtual void Serialize(CArchive& ar);
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// Implementation
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public:
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virtual ~CDib();
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protected:
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BOOL CreatePalette();
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WORD PaletteSize() const;
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void Free();
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BOOL Flip(BYTE* pSrcData);
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public:
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void ReadFromTIFFFile(CString filename);
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void ReadFromBMPFile(LPSTR filename);
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void ReadFromBMPFile(CString filename);
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BOOL GotImage();
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BOOL ReadFromHGLOBAL(HGLOBAL hGlobal,int FileType);
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#ifdef _DEBUG
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virtual void Dump(CDumpContext& dc) const;
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#endif
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protected:
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CDib& operator = (CDib& dib);
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};
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#endif //!_INC_DIB
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