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/*
* File: ximage.h
* Purpose: General Purpose Image Class
*/
/* === C R E D I T S & D I S C L A I M E R S ==============
* Permission is given by the author to freely redistribute and include
* this code in any program as long as this credit is given where due.
*
* CxImage (c) 07/Aug/2001 Davide Pizzolato - www.xdp.it
* CxImage version 5.99a 08/Feb/2004
* See the file history.htm for the complete bugfix and news report.
*
* original CImage and CImageIterator implementation are:
* Copyright: (c) 1995, Alejandro Aguilar Sierra
*E IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, YOU (NOT
* THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE COST OF ANY NECESSARY
* SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL
* PART OF THIS LICENSE. NO USE OF ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER
* THIS DISCLAIMER.
* COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTY
* OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTIES
* THAT THE COVERED CODE IS FREE OF DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE
* OR NON-INFRINGING. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED
* COD
*
* Use at your own risk!
* ==========================================================
*/
#if !defined(__CXIMAGE_H)
#define __CXIMAGE_H
#if _MSC_VER > 1000
#pragma once
#endif
/////////////////////////////////////////////////////////////////////////////
// CxImage supported features
#define CXIMAGE_SUPPORT_ALPHA 1
#define CXIMAGE_SUPPORT_SELECTION 1
#define CXIMAGE_SUPPORT_TRANSFORMATION 1
#define CXIMAGE_SUPPORT_DSP 1
#define CXIMAGE_SUPPORT_LAYERS 1
#define CXIMAGE_SUPPORT_DECODE 1
#define CXIMAGE_SUPPORT_ENCODE 1 //
#define CXIMAGE_SUPPORT_WINDOWS 1
#define CXIMAGE_SUPPORT_WINCE 0 //
/////////////////////////////////////////////////////////////////////////////
// CxImage supported formats
#define CXIMAGE_SUPPORT_BMP 1
#define CXIMAGE_SUPPORT_GIF 1
#define CXIMAGE_SUPPORT_JPG 1
#define CXIMAGE_SUPPORT_PNG 1
#define CXIMAGE_SUPPORT_MNG 0
#define CXIMAGE_SUPPORT_ICO 1
#define CXIMAGE_SUPPORT_TIF 1
#define CXIMAGE_SUPPORT_TGA 1
#define CXIMAGE_SUPPORT_PCX 1
#define CXIMAGE_SUPPORT_WBMP 1
#define CXIMAGE_SUPPORT_WMF 1
#define CXIMAGE_SUPPORT_J2000 0 // Beta, use JP2
#define CXIMAGE_SUPPORT_JBG 0 // GPL'd see ../jbig/copying.txt & ../jbig/patents.htm
#define CXIMAGE_SUPPORT_JP2 1
#define CXIMAGE_SUPPORT_JPC 1
#define CXIMAGE_SUPPORT_PGX 1
#define CXIMAGE_SUPPORT_PNM 1
#define CXIMAGE_SUPPORT_RAS 1
/////////////////////////////////////////////////////////////////////////////
#include // For UNICODE support
#include "xfile.h"
#include "xiofile.h"
#include "xmemfile.h"
#include "ximadefs.h" // adjust some #define
/////////////////////////////////////////////////////////////////////////////
// CxImage formats enumerator
enum ENUM_CXIMAGE_FORMATS{
CXIMAGE_FORMAT_UNKNOWN,
#if CXIMAGE_SUPPORT_BMP
CXIMAGE_FORMAT_BMP,
#endif
#if CXIMAGE_SUPPORT_GIF
CXIMAGE_FORMAT_GIF,
#endif
#if CXIMAGE_SUPPORT_JPG
CXIMAGE_FORMAT_JPG,
#endif
#if CXIMAGE_SUPPORT_PNG
CXIMAGE_FORMAT_PNG,
#endif
#if CXIMAGE_SUPPORT_MNG
CXIMAGE_FORMAT_MNG,
#endif
#if CXIMAGE_SUPPORT_ICO
CXIMAGE_FORMAT_ICO,
#endif
#if CXIMAGE_SUPPORT_TIF
CXIMAGE_FORMAT_TIF,
#endif
#if CXIMAGE_SUPPORT_TGA
CXIMAGE_FORMAT_TGA,
#endif
#if CXIMAGE_SUPPORT_PCX
CXIMAGE_FORMAT_PCX,
#endif
#if CXIMAGE_SUPPORT_WBMP
CXIMAGE_FORMAT_WBMP,
#endif
#if CXIMAGE_SUPPORT_WMF
CXIMAGE_FORMAT_WMF,
#endif
#if CXIMAGE_SUPPORT_J2000
CXIMAGE_FORMAT_J2000,
#endif
#if CXIMAGE_SUPPORT_JBG
CXIMAGE_FORMAT_JBG,
#endif
#if CXIMAGE_SUPPORT_JP2
CXIMAGE_FORMAT_JP2,
#endif
#if CXIMAGE_SUPPORT_JPC
CXIMAGE_FORMAT_JPC,
#endif
#if CXIMAGE_SUPPORT_PGX
CXIMAGE_FORMAT_PGX,
#endif
#if CXIMAGE_SUPPORT_PNM
CXIMAGE_FORMAT_PNM,
#endif
#if CXIMAGE_SUPPORT_RAS
CXIMAGE_FORMAT_RAS,
#endif
CMAX_IMAGE_FORMATS
};
//color to grey mapping
//#define RGB2GRAY(r,g,b) (((b)*114 + (g)*587 + (r)*299)/1000)
#define RGB2GRAY(r,g,b) (((b)*117 + (g)*601 + (r)*306) >> 10)
struct rgb_color { BYTE r,g,b; };
// text placement data
// members must be initialized with the InitTextInfo(&this) function.
typedef struct DLL_EXP tagCxTextInfo
{
char text[4096]; // text
LOGFONT lfont; // font and codepage data
COLORREF fcolor; // foreground color
long align; // DT_CENTER, DT_RIGHT, DT_LEFT aligment for multiline text
BYTE opaque; // text has background or hasn't. Default is true.
// data for background (ignored if .opaque==FALSE)
COLORREF bcolor; // background color
float b_opacity; // opacity value for background between 0.0-1.0 Default is 0. (opaque)
BYTE b_outline; // outline width for background (zero: no outline)
BYTE b_round; // rounding radius for background rectangle. % of the height, between 0-50. Default is 10.
// (backgr. always has a frame: width = 3 pixel + 10% of height by default.)
} CXTEXTINFO;
/////////////////////////////////////////////////////////////////////////////
// CxImage class
/////////////////////////////////////////////////////////////////////////////
class DLL_EXP CxImage
{
//extensible information collector
typedef struct tagCxImageInfo {
DWORD dwEffWidth; //DWORD aligned scan line width
BYTE* pImage; //THE IMAGE BITS
CxImage* pGhost; //if this is a ghost, pGhost points to the body
CxImage* pParent; //if this is a layer, pParent points to the body
DWORD dwType; //original image format
char szLastError[256]; //debugging
long nProgress; //monitor
long nEscape; //escape
long nBkgndIndex; //used for GIF, PNG, MNG
RGBQUAD nBkgndColor; //used for RGB transparency
BYTE nQuality; //used for JPEG
BYTE nScale; //used for JPEG
long nFrame; //used for TIF, GIF, MNG : actual frame
long nNumFrames; //used for TIF, GIF, MNG : total number of frames
DWORD dwFrameDelay; //used for GIF, MNG
long xDPI; //horizontal resolution
long yDPI; //vertical resolution
RECT rSelectionBox; //bounding rectangle
BYTE nAlphaMax; //max opacity (fade)
bool bAlphaPaletteEnabled; //true if alpha values in the palette are enabled.
bool bEnabled; //enables the painting functions
long xOffset;
long yOffset;
DWORD dwCodecOption; //for GIF, TIF : 0=def.1=unc,2=fax3,3=fax4,4=pack,5=jpg
RGBQUAD last_c; //for GetNearestIndex optimization
BYTE last_c_index;
bool last_c_isvalid;
long nNumLayers;
DWORD dwFlags; // 0x??00000 = reserved, 0x00??0000 = blend mode, 0x0000???? = layer id - user flags
} CXIMAGEINFO;
public:
//constructors
CxImage(DWORD imagetype = 0);
CxImage(DWORD dwWidth, DWORD dwHeight, DWORD wBpp, DWORD imagetype = 0);
CxImage(const CxImage &src, bool copypixels = true, bool copyselection = true, bool copyalpha = true);
CxImage(const TCHAR * filename, DWORD imagetype); // For UNICODE support: char -> TCHAR
// CxImage(const char * filename, DWORD imagetype);
CxImage(FILE * stream, DWORD imagetype);
CxImage(CxFile * stream, DWORD imagetype);
CxImage(BYTE * buffer, DWORD size, DWORD imagetype);
virtual ~CxImage() { Destroy(); };
CxImage& operator = (const CxImage&);
//initializzation
void* Create(DWORD dwWidth, DWORD dwHeight, DWORD wBpp, DWORD imagetype = 0);
bool Destroy();
void Clear(BYTE bval=0);
void Copy(const CxImage &src, bool copypixels = true, bool copyselection = true, bool copyalpha = true);
bool Transfer(CxImage &from);
bool CreateFromArray(BYTE* pArray,DWORD dwWidth,DWORD dwHeight,DWORD dwBitsperpixel, DWORD dwBytesperline, bool bFlipImage);
bool CreateFromMatrix(BYTE** ppMatrix,DWORD dwWidth,DWORD dwHeight,DWORD dwBitsperpixel, DWORD dwBytesperline, bool bFlipImage);
//Attributes
long GetSize();
BYTE* GetBits(DWORD row = 0);
BYTE GetColorType();
void* GetDIB() const {return pDib;}
DWORD GetHeight() const {return head.biHeight;}
DWORD GetWidth() const {return head.biWidth;}
DWORD GetEffWidth() const {return info.dwEffWidth;}
DWORD GetNumColors() const {return head.biClrUsed;}
WORD GetBpp() const {return head.biBitCount;}
DWORD GetType() const {return info.dwType;}
char* GetLastError() {return info.szLastError;}
const TCHAR* GetVersion();
DWORD GetFrameDelay() const {return info.dwFrameDelay;}
void SetFrameDelay(DWORD d) {info.dwFrameDelay=d;}
void GetOffset(long *x,long *y) {*x=info.xOffset; *y=info.yOffset;}
void SetOffset(long x,long y) {info.xOffset=x; info.yOffset=y;}
BYTE GetJpegQuality() const {return info.nQuality;}
void SetJpegQuality(BYTE q) {info.nQuality = q;}
// used for scaling down during JPEG decoding valid numbers are 1, 2, 4, 8
BYTE GetJpegScale() const {return info.nScale;}
void SetJpegScale(BYTE q) {info.nScale = q;}
long GetXDPI() const {return info.xDPI;}
long GetYDPI() const {return info.yDPI;}
void SetXDPI(long dpi);
void SetYDPI(long dpi);
DWORD GetClrImportant() const {return head.biClrImportant;}
void SetClrImportant(DWORD ncolors = 0);
long GetProgress() const {return info.nProgress;}
long GetEscape() const {return info.nEscape;}
void SetProgress(long p) {info.nProgress = p;}
void SetEscape(long i) {info.nEscape = i;}
long GetTransIndex() const {return info.nBkgndIndex;}
RGBQUAD GetTransColor();
void SetTransIndex(long idx) {info.nBkgndIndex = idx;}
void SetTransColor(RGBQUAD rgb) {rgb.rgbReserved=0; info.nBkgndColor = rgb;}
bool IsTransparent() const {return info.nBkgndIndex>=0;} //
DWORD GetCodecOption() const {return info.dwCodecOption;}
void SetCodecOption(DWORD opt) {info.dwCodecOption = opt;}
DWORD GetFlags() const {return info.dwFlags;}
void SetFlags(DWORD flags, bool bLockReservedFlags = true);
//void* GetUserData() const {return info.pUserData;}
//void SetUserData(void* pUserData) {info.pUserData = pUserData;}
//palette operations
bool IsGrayScale();
bool IsIndexed() {return head.biClrUsed!=0;}
DWORD GetPaletteSize();
RGBQUAD* GetPalette() const;
RGBQUAD GetPaletteColor(BYTE idx);
bool GetPaletteColor(BYTE i, BYTE* r, BYTE* g, BYTE* b);
BYTE GetNearestIndex(RGBQUAD c);
void BlendPalette(COLORREF cr,long perc);
void SetGrayPalette();
void SetPalette(DWORD n, BYTE *r, BYTE *g, BYTE *b);
void SetPalette(RGBQUAD* pPal,DWORD nColors=256);
void SetPalette(rgb_color *rgb,DWORD nColors=256);
void SetPaletteColor(BYTE idx, BYTE r, BYTE g, BYTE b, BYTE alpha=0);
void SetPaletteColor(BYTE idx, RGBQUAD c);
void SetPaletteColor(BYTE idx, COLORREF cr);
void SwapIndex(BYTE idx1, BYTE idx2);
void SetStdPalette();
//pixel operations
bool IsInside(long x, long y);
bool IsTransparent(long x,long y);
RGBQUAD GetPixelColor(long x,long y, bool bGetAlpha = true);
BYTE GetPixelIndex(long x,long y);
BYTE GetPixelGray(long x, long y);
void SetPixelColor(long x,long y,RGBQUAD c, bool bSetAlpha = false);
void SetPixelColor(long x,long y,COLORREF cr);
void SetPixelIndex(long x,long y,BYTE i);
void DrawLine(int StartX, int EndX, int StartY, int EndY, RGBQUAD color, bool bSetAlpha=false);
void DrawLine(int StartX, int EndX, int StartY, int EndY, COLORREF cr);
//painting operations
#if CXIMAGE_SUPPORT_WINCE
long Blt(HDC pDC, long x=0, long y=0);
#endif
#if CXIMAGE_SUPPORT_WINDOWS
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);
long Draw(HDC hdc, const RECT& rect, RECT* pClipRect=NULL) { return Draw(hdc, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, pClipRect); }
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) { return Stretch(hdc, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, dwRop); }
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) { return Draw2(hdc, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top); }
//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);
// 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
#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);
#endif //CXIMAGE_SUPPORT_DECODE
#if CXIMAGE_SUPPORT_ENCODE
protected:
bool EncodeSafeCheck(CxFile *hFile);
public:
#ifdef WIN32
//bool Save(LPCWSTR filename, DWORD imagetype=0);
#endif
// For UNICODE support: char -> TCHAR
bool Save(const TCHAR* filename, DWORD imagetype=0);
//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);
#endif //CXIMAGE_SUPPORT_ENCODE
//misc.
bool IsValid() const {return pDib!=0;}
bool IsEnabled() const {return info.bEnabled;}
void Enable(bool enable=true){info.bEnabled=enable;}
// frame operations
long GetNumFrames() const {return info.nNumFrames;}
long GetFrame() const {return info.nFrame;}
void SetFrame(long nFrame) {info.nFrame=nFrame;}
#if CXIMAGE_SUPPORT_BASICTRANSFORMATIONS
bool GrayScale();
bool Flip();
bool Mirror();
bool Negative();
bool RotateLeft(CxImage* iDst = NULL);
bool RotateRight(CxImage* iDst = NULL);
#endif //CXIMAGE_SUPPORT_BASICTRANSFORMATIONS
#if CXIMAGE_SUPPORT_TRANSFORMATION
// image operations
bool Rotate(float angle, CxImage* iDst = NULL);
bool Rotate180(CxImage* iDst = NULL);
bool Resample(long newx, long newy, int mode = 1, CxImage* iDst = NULL);
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) { return Crop(rect.left, rect.top, rect.right, rect.bottom, iDst); }
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 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);
protected:
float b3spline(float x);
public:
#endif //CXIMAGE_SUPPORT_TRANSFORMATION
#if CXIMAGE_SUPPORT_DSP
bool Contour();
bool HistogramStretch(long method = 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 ShiftRGB(long r, long g, long b);
bool Threshold(BYTE level);
bool Colorize(BYTE hue, BYTE sat);
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);
void HuePalette(float correction=1);
enum ImageOpType { OpAdd, OpAnd, OpXor, OpOr, OpMask, OpSrcCopy, OpDstCopy, OpSub, OpSrcBlend };
void Mix(CxImage & imgsrc2, ImageOpType op, long lXOffset = 0, long lYOffset = 0);
void MixFrom(CxImage & imagesrc2, long lXOffset, long lYOffset);
bool UnsharpMask(float radius = 5.0, float amount = 0.5, int threshold = 0);
bool Lut(BYTE* pLut);
bool Lut(BYTE* pLutR, BYTE* pLutG, BYTE* pLutB, BYTE* pLutA = 0);
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);
//
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);
public:
//color conversion utilities
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);
RGBQUAD HSLtoRGB(COLORREF cHSLColor);
RGBQUAD RGBtoHSL(RGBQUAD lRGBColor);
RGBQUAD HSLtoRGB(RGBQUAD lHSLColor);
RGBQUAD YUVtoRGB(RGBQUAD lYUVColor);
RGBQUAD RGBtoYUV(RGBQUAD lRGBColor);
RGBQUAD YIQtoRGB(RGBQUAD lYIQColor);
RGBQUAD RGBtoYIQ(RGBQUAD lRGBColor);
RGBQUAD XYZtoRGB(RGBQUAD lXYZColor);
RGBQUAD RGBtoXYZ(RGBQUAD lRGBColor);
#endif //CXIMAGE_SUPPORT_DSP
RGBQUAD RGBtoRGBQUAD(COLORREF cr);
COLORREF RGBQUADtoRGB (RGBQUAD c);
#if CXIMAGE_SUPPORT_SELECTION
//selection
bool SelectionClear();
bool SelectionCreate();
bool SelectionDelete();
bool SelectionInvert();
bool SelectionAddRect(RECT r);
bool SelectionAddEllipse(RECT r);
bool SelectionAddPolygon(POINT *points, long npoints);
bool SelectionAddColor(RGBQUAD c);
bool SelectionAddPixel(int x, int y);
bool SelectionCopy(CxImage &from);
bool SelectionIsInside(long x, long y);
bool SelectionIsValid(){return pSelection!=0;}
void SelectionGetBox(RECT& r){memcpy(&r,&info.rSelectionBox,sizeof(RECT));}
bool SelectionToHRGN(HRGN& region);
#endif //CXIMAGE_SUPPORT_SELECTION
#if CXIMAGE_SUPPORT_ALPHA
//Alpha
void AlphaClear();
void 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(long x,long y,BYTE level);
BYTE AlphaGet(long x,long y);
BYTE AlphaGetMax() const {return info.nAlphaMax;}
void AlphaSetMax(BYTE nAlphaMax) {info.nAlphaMax=nAlphaMax;}
bool AlphaIsValid(){return pAlpha!=0;}
BYTE* AlphaGetBits() const {return pAlpha;}
void AlphaPaletteClear();
void AlphaPaletteEnable(bool enable=true){info.bAlphaPaletteEnabled=enable;}
bool AlphaPaletteIsEnabled(){return info.bAlphaPaletteEnabled;}
bool AlphaPaletteIsValid();
bool AlphaPaletteSplit(CxImage *dest);
#endif //CXIMAGE_SUPPORT_ALPHA
#if CXIMAGE_SUPPORT_LAYERS
bool LayerCreate(long position = -1);
bool LayerDelete(long position = -1);
void LayerDeleteAll();
CxImage* GetLayer(long position);
CxImage* GetParent() const {return info.pParent;}
long GetNumLayers() const {return info.nNumLayers;}
#endif //CXIMAGE_SUPPORT_LAYERS
protected:
void Startup(DWORD imagetype = 0);
void CopyInfo(const CxImage &src);
void Ghost(CxImage *src);
void RGBtoBGR(BYTE *buffer, int length);
float HueToRGB(float n1,float n2, float hue);
void Bitfield2RGB(BYTE *src, WORD redmask, WORD greenmask, WORD bluemask, BYTE bpp);
static int CompareColors(const void *elem1, const void *elem2);
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** pLayers; //generic layers
};
////////////////////////////////////////////////////////////////////////////
#define CXIMAGE_MAX_MEMORY 256000000
#define CXIMAGE_ERR_NOFILE "null file handler"
#define CXIMAGE_ERR_NOIMAGE "null image!!!"
////////////////////////////////////////////////////////////////////////////
#endif // !defined(__CXIMAGE_H)