ximage.h

ddrawCximage 简单的可以用directshow 显示各种图片的小程序 。在ARMV4I平台运行通过。

	//interpolation methods:
	enum InterpolationMethod {
		IM_NEAREST_NEIGHBOUR=1,
		IM_BILINEAR		=2,
		IM_BSPLINE		=3,
		IM_BICUBIC		=4,
		IM_BICUBIC2		=5,
		IM_LANCZOS		=6,
		IM_BOX			=7,
		IM_HERMITE		=8,
		IM_HAMMING		=9,
		IM_SINC			=10,
		IM_BLACKMAN		=11,
		IM_BESSEL		=12,
		IM_GAUSSIAN		=13,
		IM_QUADRATIC	=14,
		IM_MITCHELL		=15,
		IM_CATROM		=16,
		IM_HANNING		=17,
		IM_POWER		=18
	};
	RGBQUAD GetPixelColorInterpolated(float x,float y, InterpolationMethod const inMethod=IM_BILINEAR, OverflowMethod const ofMethod=OM_BACKGROUND, RGBQUAD* const rplColor=0);
	RGBQUAD GetAreaColorInterpolated(float const xc, float const yc, float const w, float const h, InterpolationMethod const inMethod, OverflowMethod const ofMethod=OM_BACKGROUND, RGBQUAD* const rplColor=0);
//@}

protected:
/** \addtogroup Protected */ //@{
	void  AddAveragingCont(RGBQUAD const &color, float const surf, float &rr, float &gg, float &bb, float &aa);
//@}

/** \addtogroup Kernels */ //@{
public:
	static float KernelBSpline(const float x);
	static float KernelLinear(const float t);
	static float KernelCubic(const float t);
	static float KernelGeneralizedCubic(const float t, const float a=-1);
	static float KernelLanczosSinc(const float t, const float r = 3);
	static float KernelBox(const float x);
	static float KernelHermite(const float x);
	static float KernelHamming(const float x);
	static float KernelSinc(const float x);
	static float KernelBlackman(const float x);
	static float KernelBessel_J1(const float x);
	static float KernelBessel_P1(const float x);
	static float KernelBessel_Q1(const float x);
	static float KernelBessel_Order1(float x);
	static float KernelBessel(const float x);
	static float KernelGaussian(const float x);
	static float KernelQuadratic(const float x);
	static float KernelMitchell(const float x);
	static float KernelCatrom(const float x);
	static float KernelHanning(const float x);
	static float KernelPower(const float x, const float a = 2);
//@}
#endif //CXIMAGE_SUPPORT_INTERPOLATION
	
/** \addtogroup Painting */ //@{
#if CXIMAGE_SUPPORT_WINDOWS
	long	Blt(HDC pDC, long x=0, long y=0);
	HBITMAP MakeBitmap(HDC hdc = NULL);
	HANDLE	CopyToHandle();
	bool	CreateFromHANDLE(HANDLE hMem);		//Windows objects (clipboard)
	bool	CreateFromHBITMAP(HBITMAP hbmp, HPALETTE hpal=0);	//Windows resource
	bool	CreateFromHICON(HICON hico);
	long	Draw(HDC hdc, long x=0, long y=0, long cx = -1, long cy = -1, RECT* pClipRect = 0, bool bSmooth = false);
	long	Draw(HDC hdc, const RECT& rect, RECT* pClipRect=NULL, bool bSmooth = false);
	long	Stretch(HDC hdc, long xoffset, long yoffset, long xsize, long ysize, DWORD dwRop = SRCCOPY);
	long	Stretch(HDC hdc, const RECT& rect, DWORD dwRop = SRCCOPY);
	long	Tile(HDC hdc, RECT *rc);
	long	Draw2(HDC hdc, long x=0, long y=0, long cx = -1, long cy = -1);
	long	Draw2(HDC hdc, const RECT& rect);
	//long	DrawString(HDC hdc, long x, long y, const char* text, RGBQUAD color, const char* font, long lSize=0, long lWeight=400, BYTE bItalic=0, BYTE bUnderline=0, bool bSetAlpha=false);
	long	DrawString(HDC hdc, long x, long y, const TCHAR* text, RGBQUAD color, const TCHAR* font, long lSize=0, long lWeight=400, BYTE bItalic=0, BYTE bUnderline=0, bool bSetAlpha=false);
	// <VATI> extensions
	long    DrawStringEx(HDC hdc, long x, long y, CXTEXTINFO *pTextType, bool bSetAlpha=false );
	void    InitTextInfo( CXTEXTINFO *txt );
#endif //CXIMAGE_SUPPORT_WINDOWS
//@}

	// file operations
#if CXIMAGE_SUPPORT_DECODE
/** \addtogroup Decode */ //@{
#ifdef WIN32
	//bool Load(LPCWSTR filename, DWORD imagetype=0);
	bool LoadResource(HRSRC hRes, DWORD imagetype, HMODULE hModule=NULL);
#endif
	// For UNICODE support: char -> TCHAR
	bool Load(const TCHAR* filename, DWORD imagetype=0);
	//bool Load(const char * filename, DWORD imagetype=0);
	bool Decode(FILE * hFile, DWORD imagetype);
	bool Decode(CxFile * hFile, DWORD imagetype);
	bool Decode(BYTE * buffer, DWORD size, DWORD imagetype);

	bool CheckFormat(CxFile * hFile, DWORD imagetype = 0);
	bool CheckFormat(BYTE * buffer, DWORD size, DWORD imagetype = 0);
//@}
#endif //CXIMAGE_SUPPORT_DECODE

#if CXIMAGE_SUPPORT_ENCODE
protected:
/** \addtogroup Protected */ //@{
	bool EncodeSafeCheck(CxFile *hFile);
//@}

public:
/** \addtogroup Encode */ //@{
#ifdef WIN32
	//bool Save(LPCWSTR filename, DWORD imagetype=0);
#endif
	// For UNICODE support: char -> TCHAR
	bool Save(const TCHAR* filename, DWORD imagetype);
	//bool Save(const char * filename, DWORD imagetype=0);
	bool Encode(FILE * hFile, DWORD imagetype);
	bool Encode(CxFile * hFile, DWORD imagetype);
	bool Encode(CxFile * hFile, CxImage ** pImages, int pagecount, DWORD imagetype);
	bool Encode(FILE *hFile, CxImage ** pImages, int pagecount, DWORD imagetype);
	bool Encode(BYTE * &buffer, long &size, DWORD imagetype);

	bool Encode2RGBA(CxFile *hFile, bool bFlipY = false);
	bool Encode2RGBA(BYTE * &buffer, long &size, bool bFlipY = false);
//@}
#endif //CXIMAGE_SUPPORT_ENCODE

/** \addtogroup Attributes */ //@{
	//misc.
	bool IsValid() const;
	bool IsEnabled() const;
	void Enable(bool enable=true);

	// frame operations
	long GetNumFrames() const;
	long GetFrame() const;
	void SetFrame(long nFrame);
//@}

#if CXIMAGE_SUPPORT_BASICTRANSFORMATIONS
/** \addtogroup BasicTransformations */ //@{
	bool GrayScale();
	bool Flip(bool bFlipSelection = false, bool bFlipAlpha = true);
	bool Mirror(bool bMirrorSelection = false, bool bMirrorAlpha = true);
	bool Negative();
	bool RotateLeft(CxImage* iDst = NULL);
	bool RotateRight(CxImage* iDst = NULL);
//@}
#endif //CXIMAGE_SUPPORT_BASICTRANSFORMATIONS

#if CXIMAGE_SUPPORT_TRANSFORMATION
/** \addtogroup Transformations */ //@{
	// image operations
	bool Rotate(float angle, CxImage* iDst = NULL);
	bool Rotate2(float angle, CxImage *iDst = NULL, InterpolationMethod inMethod=IM_BILINEAR,
                OverflowMethod ofMethod=OM_BACKGROUND, RGBQUAD *replColor=0,
                bool const optimizeRightAngles=true, bool const bKeepOriginalSize=false);
	bool Rotate180(CxImage* iDst = NULL);
	bool Resample(long newx, long newy, int mode = 1, CxImage* iDst = NULL);
	bool Resample2(long newx, long newy, InterpolationMethod const inMethod=IM_BICUBIC2,
				OverflowMethod const ofMethod=OM_REPEAT, CxImage* const iDst = NULL,
				bool const disableAveraging=false);
	bool DecreaseBpp(DWORD nbit, bool errordiffusion, RGBQUAD* ppal = 0, DWORD clrimportant = 0);
	bool IncreaseBpp(DWORD nbit);
	bool Dither(long method = 0);
	bool Crop(long left, long top, long right, long bottom, CxImage* iDst = NULL);
	bool Crop(const RECT& rect, CxImage* iDst = NULL);
	bool CropRotatedRectangle( long topx, long topy, long width, long height, float angle, CxImage* iDst = NULL);
	bool Skew(float xgain, float ygain, long xpivot=0, long ypivot=0, bool bEnableInterpolation = false);
	bool Expand(long left, long top, long right, long bottom, RGBQUAD canvascolor, CxImage* iDst = 0);
	bool Expand(long newx, long newy, RGBQUAD canvascolor, CxImage* iDst = 0);
	bool Thumbnail(long newx, long newy, RGBQUAD canvascolor, CxImage* iDst = 0);
	bool CircleTransform(int type,long rmax=0,float Koeff=1.0f);
	bool RedEyeRemove(float strength = 0.8f);
	bool QIShrink(long newx, long newy, CxImage* const iDst = NULL, bool bChangeBpp = false);

//@}
#endif //CXIMAGE_SUPPORT_TRANSFORMATION

#if CXIMAGE_SUPPORT_DSP
/** \addtogroup DSP */ //@{
	bool Contour();
	bool HistogramStretch(long method = 0, double threshold = 0);
	bool HistogramEqualize();
	bool HistogramNormalize();
	bool HistogramRoot();
	bool HistogramLog();
	long Histogram(long* red, long* green = 0, long* blue = 0, long* gray = 0, long colorspace = 0);
	bool Jitter(long radius=2);
	bool Repair(float radius = 0.25f, long niterations = 1, long colorspace = 0);
	bool Combine(CxImage* r,CxImage* g,CxImage* b,CxImage* a, long colorspace = 0);
	bool FFT2(CxImage* srcReal, CxImage* srcImag, CxImage* dstReal, CxImage* dstImag, long direction = 1, bool bForceFFT = true, bool bMagnitude = true);
	bool Noise(long level);
	bool Median(long Ksize=3);
	bool Gamma(float gamma);
	bool GammaRGB(float gammaR, float gammaG, float gammaB);
	bool ShiftRGB(long r, long g, long b);
	bool Threshold(BYTE level);
	bool Threshold(CxImage* pThresholdMask);
	bool Threshold2(BYTE level, bool bDirection, RGBQUAD nBkgndColor, bool bSetAlpha = false);
	bool Colorize(BYTE hue, BYTE sat, float blend = 1.0f);
	bool Light(long brightness, long contrast = 0);
	float Mean();
	bool Filter(long* kernel, long Ksize, long Kfactor, long Koffset);
	bool Erode(long Ksize=2);
	bool Dilate(long Ksize=2);
	bool Edge(long Ksize=2);
	void HuePalette(float correction=1);
	enum ImageOpType { OpAdd, OpAnd, OpXor, OpOr, OpMask, OpSrcCopy, OpDstCopy, OpSub, OpSrcBlend, OpScreen, OpAvg };
	void Mix(CxImage & imgsrc2, ImageOpType op, long lXOffset = 0, long lYOffset = 0, bool bMixAlpha = false);
	void MixFrom(CxImage & imagesrc2, long lXOffset, long lYOffset);
	bool UnsharpMask(float radius = 5.0f, float amount = 0.5f, int threshold = 0);
	bool Lut(BYTE* pLut);
	bool Lut(BYTE* pLutR, BYTE* pLutG, BYTE* pLutB, BYTE* pLutA = 0);
	bool GaussianBlur(float radius = 1.0f, CxImage* iDst = 0);
	bool TextBlur(BYTE threshold = 100, BYTE decay = 2, BYTE max_depth = 5, bool bBlurHorizontal = true, bool bBlurVertical = true, CxImage* iDst = 0);
	bool SelectiveBlur(float radius = 1.0f, BYTE threshold = 25, CxImage* iDst = 0);
	bool Solarize(BYTE level = 128, bool bLinkedChannels = true);
	bool FloodFill(const long xStart, const long yStart, const RGBQUAD cFillColor, const BYTE tolerance = 0,
					BYTE nOpacity = 255, const bool bSelectFilledArea = false, const BYTE nSelectionLevel = 255);
	bool Saturate(const long saturation, const long colorspace = 1);
	bool ConvertColorSpace(const long dstColorSpace, const long srcColorSpace);
	int  OptimalThreshold(long method = 0, RECT * pBox = 0, CxImage* pContrastMask = 0);
	bool AdaptiveThreshold(long method = 0, long nBoxSize = 64, CxImage* pContrastMask = 0, long nBias = 0, float fGlobalLocalBalance = 0.5f);

//@}

protected:
/** \addtogroup Protected */ //@{
	bool IsPowerof2(long x);
	bool FFT(int dir,int m,double *x,double *y);
	bool DFT(int dir,long m,double *x1,double *y1,double *x2,double *y2);
	bool RepairChannel(CxImage *ch, float radius);
	// <nipper>
	int gen_convolve_matrix (float radius, float **cmatrix_p);
	float* gen_lookup_table (float *cmatrix, int cmatrix_length);
	void blur_line (float *ctable, float *cmatrix, int cmatrix_length, BYTE* cur_col, BYTE* dest_col, int y, long bytes);
	void blur_text (BYTE threshold, BYTE decay, BYTE max_depth, CxImage* iSrc, CxImage* iDst, BYTE bytes);
//@}

public:
/** \addtogroup ColorSpace */ //@{
	bool SplitRGB(CxImage* r,CxImage* g,CxImage* b);
	bool SplitYUV(CxImage* y,CxImage* u,CxImage* v);
	bool SplitHSL(CxImage* h,CxImage* s,CxImage* l);
	bool SplitYIQ(CxImage* y,CxImage* i,CxImage* q);
	bool SplitXYZ(CxImage* x,CxImage* y,CxImage* z);
	bool SplitCMYK(CxImage* c,CxImage* m,CxImage* y,CxImage* k);
	static RGBQUAD HSLtoRGB(COLORREF cHSLColor);
	static RGBQUAD RGBtoHSL(RGBQUAD lRGBColor);
	static RGBQUAD HSLtoRGB(RGBQUAD lHSLColor);
	static RGBQUAD YUVtoRGB(RGBQUAD lYUVColor);
	static RGBQUAD RGBtoYUV(RGBQUAD lRGBColor);
	static RGBQUAD YIQtoRGB(RGBQUAD lYIQColor);
	static RGBQUAD RGBtoYIQ(RGBQUAD lRGBColor);
	static RGBQUAD XYZtoRGB(RGBQUAD lXYZColor);
	static RGBQUAD RGBtoXYZ(RGBQUAD lRGBColor);
#endif //CXIMAGE_SUPPORT_DSP
	static RGBQUAD RGBtoRGBQUAD(COLORREF cr);
	static COLORREF RGBQUADtoRGB (RGBQUAD c);
//@}

#if CXIMAGE_SUPPORT_SELECTION
/** \addtogroup Selection */ //@{
	bool SelectionClear(BYTE level = 0);
	bool SelectionCreate();
	bool SelectionDelete();
	bool SelectionInvert();
	bool SelectionMirror();
	bool SelectionFlip();
	bool SelectionAddRect(RECT r, BYTE level = 255);
	bool SelectionAddEllipse(RECT r, BYTE level = 255);
	bool SelectionAddPolygon(POINT *points, long npoints, BYTE level = 255);
	bool SelectionAddColor(RGBQUAD c, BYTE level = 255);
	bool SelectionAddPixel(long x, long y, BYTE level = 255);
	bool SelectionCopy(CxImage &from);
	bool SelectionIsInside(long x, long y);
	bool SelectionIsValid();
	void SelectionGetBox(RECT& r);
	bool SelectionToHRGN(HRGN& region);
	bool SelectionSplit(CxImage *dest);
	BYTE SelectionGet(const long x,const long y);
	bool SelectionSet(CxImage &from);
	void SelectionRebuildBox();
	BYTE* SelectionGetPointer(const long x = 0,const long y = 0);
//@}

protected:
/** \addtogroup Protected */ //@{
	bool BlindSelectionIsInside(long x, long y);
	BYTE BlindSelectionGet(const long x,const long y);
	void SelectionSet(const long x,const long y,const BYTE level);
//@}

public:

#endif //CXIMAGE_SUPPORT_SELECTION

#if CXIMAGE_SUPPORT_ALPHA
/** \addtogroup Alpha */ //@{
	void AlphaClear();
	bool AlphaCreate();
	void AlphaDelete();
	void AlphaInvert();
	bool AlphaMirror();
	bool AlphaFlip();
	bool AlphaCopy(CxImage &from);
	bool AlphaSplit(CxImage *dest);
	void AlphaStrip();
	void AlphaSet(BYTE level);
	bool AlphaSet(CxImage &from);
	void AlphaSet(const long x,const long y,const BYTE level);
	BYTE AlphaGet(const long x,const long y);
	BYTE AlphaGetMax() const;
	void AlphaSetMax(BYTE nAlphaMax);
	bool AlphaIsValid();
	BYTE* AlphaGetPointer(const long x = 0,const long y = 0);
	bool AlphaFromTransparency();

	void AlphaPaletteClear();
	void AlphaPaletteEnable(bool enable=true);
	bool AlphaPaletteIsEnabled();
	bool AlphaPaletteIsValid();
	bool AlphaPaletteSplit(CxImage *dest);
//@}

protected:
/** \addtogroup Protected */ //@{
	BYTE BlindAlphaGet(const long x,const long y);
//@}
#endif //CXIMAGE_SUPPORT_ALPHA

public:
#if CXIMAGE_SUPPORT_LAYERS
/** \addtogroup Layers */ //@{
	bool LayerCreate(long position = -1);
	bool LayerDelete(long position = -1);
	void LayerDeleteAll();
	CxImage* GetLayer(long position);
	CxImage* GetParent() const;
	long GetNumLayers() const;
	long LayerDrawAll(HDC hdc, long x=0, long y=0, long cx = -1, long cy = -1, RECT* pClipRect = 0, bool bSmooth = false);
	long LayerDrawAll(HDC hdc, const RECT& rect, RECT* pClipRect=NULL, bool bSmooth = false);
//@}
#endif //CXIMAGE_SUPPORT_LAYERS

public:
/** \addtogroup Protected */ //@{
	void Startup(DWORD imagetype = 0);
	void CopyInfo(const CxImage &src);
	void Ghost(const CxImage *src);
	void RGBtoBGR(BYTE *buffer, int length);
	static float HueToRGB(float n1,float n2, float hue);
	void Bitfield2RGB(BYTE *src, DWORD redmask, DWORD greenmask, DWORD bluemask, BYTE bpp);
	static int CompareColors(const void *elem1, const void *elem2);
	short ntohs(const short word);
	long ntohl(const long dword);
	void bihtoh(BITMAPINFOHEADER* bih);

	void*				pDib; //contains the header, the palette, the pixels
    BITMAPINFOHEADER    head; //standard header
	CXIMAGEINFO			info; //extended information
	BYTE*				pSelection;	//selected region
	BYTE*				pAlpha; //alpha channel
	CxImage**			ppLayers; //generic layers
	CxImage**			ppFrames;
//@}
};

////////////////////////////////////////////////////////////////////////////
#endif // !defined(__CXIMAGE_H)