From 3bd383baf6a17e734329e1fc677c7e86283db772 Mon Sep 17 00:00:00 2001
From: Chris Xiong <chirs241097@gmail.com>
Date: Mon, 26 Oct 2015 22:52:36 +0800
Subject: Added support for relative line numbers. Added instructions for, brk
 and cont. (They are still untested...) Parser code cleanup. Removed garbage
 output to stderr. Reorganize the repository structure. Updated BLR2 code move
 it into archive. Added BLR1 files.

---
 archive/hge/CxImage/ximatif.cpp | 982 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 982 insertions(+)
 create mode 100644 archive/hge/CxImage/ximatif.cpp

(limited to 'archive/hge/CxImage/ximatif.cpp')

diff --git a/archive/hge/CxImage/ximatif.cpp b/archive/hge/CxImage/ximatif.cpp
new file mode 100644
index 0000000..7675361
--- /dev/null
+++ b/archive/hge/CxImage/ximatif.cpp
@@ -0,0 +1,982 @@
+/*
+ * File:	ximatif.cpp
+ * Purpose:	Platform Independent TIFF Image Class Loader and Writer
+ * 07/Aug/2001 Davide Pizzolato - www.xdp.it
+ * CxImage version 7.0.0 31/Dec/2010
+ */
+
+#include "ximatif.h"
+
+#if CXIMAGE_SUPPORT_TIF
+
+#define FIX_16BPP_DARKIMG // + VK: if uncomment, dark 16bpp images are fixed
+
+#include "../tiff/tiffio.h"
+
+#define CVT(x)			(((x) * 255L) / ((1L<<16)-1))
+#define	SCALE(x)		(((x)*((1L<<16)-1))/255)
+#define CalculateLine(width,bitdepth)	(((width * bitdepth) + 7) / 8)
+#define CalculatePitch(line)	(line + 3 & ~3)
+
+extern "C" TIFF* _TIFFOpenEx(CxFile* stream, const char* mode);
+
+////////////////////////////////////////////////////////////////////////////////
+CxImageTIF::~CxImageTIF()
+{
+	if (m_tif2) TIFFClose(m_tif2);
+}
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageTIF::Decode(CxFile * hFile)
+{
+	//Comment this line if you need more information on errors
+	// TIFFSetErrorHandler(NULL);	//<Patrick Hoffmann>
+
+	//Open file and fill the TIFF structure
+	// m_tif = TIFFOpen(imageFileName,"rb");
+	TIFF* m_tif = _TIFFOpenEx(hFile, "rb");
+
+	uint32 height=0;
+	uint32 width=0;
+	uint16 bitspersample=1;
+	uint16 samplesperpixel=1;
+	uint32 rowsperstrip=(uint32_t)-1;
+	uint16 photometric=0;
+	uint16 compression=1;
+	uint16 orientation=ORIENTATION_TOPLEFT; //<vho>
+	uint16 res_unit; //<Trifon>
+	uint32 x, y;
+	float resolution, offset;
+	BOOL isRGB;
+	uint8_t *bits;		//pointer to source data
+	uint8_t *bits2;	//pointer to destination data
+
+  cx_try
+  {
+	//check if it's a tiff file
+	if (!m_tif)
+		cx_throw("Error encountered while opening TIFF file");
+
+	// <Robert Abram> - 12/2002 : get NumFrames directly, instead of looping
+	// info.nNumFrames=0;
+	// while(TIFFSetDirectory(m_tif,(uint16)info.nNumFrames)) info.nNumFrames++;
+	info.nNumFrames = TIFFNumberOfDirectories(m_tif);
+
+	if (!TIFFSetDirectory(m_tif, (uint16)info.nFrame))
+		cx_throw("Error: page not present in TIFF file");			
+
+	//get image info
+	TIFFGetField(m_tif, TIFFTAG_IMAGEWIDTH, &width);
+	TIFFGetField(m_tif, TIFFTAG_IMAGELENGTH, &height);
+	TIFFGetField(m_tif, TIFFTAG_SAMPLESPERPIXEL, &samplesperpixel);
+	TIFFGetField(m_tif, TIFFTAG_BITSPERSAMPLE, &bitspersample);
+	TIFFGetField(m_tif, TIFFTAG_ROWSPERSTRIP, &rowsperstrip);   
+	TIFFGetField(m_tif, TIFFTAG_PHOTOMETRIC, &photometric);
+	TIFFGetField(m_tif, TIFFTAG_ORIENTATION, &orientation);
+
+	if (info.nEscape == -1) {
+		// Return output dimensions only
+		head.biWidth = width;
+		head.biHeight = height;
+		info.dwType = CXIMAGE_FORMAT_TIF;
+		cx_throw("output dimensions returned");
+	}
+
+	TIFFGetFieldDefaulted(m_tif, TIFFTAG_RESOLUTIONUNIT, &res_unit);
+	if (TIFFGetField(m_tif, TIFFTAG_XRESOLUTION, &resolution))
+	{
+		if (res_unit == RESUNIT_CENTIMETER) resolution = (float)(resolution*2.54f + 0.5f);
+		SetXDPI((int32_t)resolution);
+	}
+	if (TIFFGetField(m_tif, TIFFTAG_YRESOLUTION, &resolution))
+	{
+		if (res_unit == RESUNIT_CENTIMETER) resolution = (float)(resolution*2.54f + 0.5f);
+		SetYDPI((int32_t)resolution);
+	}
+
+	if (TIFFGetField(m_tif, TIFFTAG_XPOSITION, &offset))	info.xOffset = (int32_t)offset;
+	if (TIFFGetField(m_tif, TIFFTAG_YPOSITION, &offset))	info.yOffset = (int32_t)offset;
+
+	head.biClrUsed=0;
+	info.nBkgndIndex =-1;
+
+	if (rowsperstrip>height){
+		rowsperstrip=height;
+		TIFFSetField(m_tif, TIFFTAG_ROWSPERSTRIP, rowsperstrip);
+	}
+
+	isRGB = /*(bitspersample >= 8) && (VK: it is possible so for RGB to have < 8 bpp!)*/
+		(photometric == PHOTOMETRIC_RGB) ||
+		(photometric == PHOTOMETRIC_YCBCR) ||
+		(photometric == PHOTOMETRIC_SEPARATED) ||
+		(photometric == PHOTOMETRIC_LOGL) ||
+		(photometric == PHOTOMETRIC_LOGLUV);
+
+	if (isRGB){
+		head.biBitCount=24;
+	}else{
+		if ((photometric==PHOTOMETRIC_MINISBLACK)||(photometric==PHOTOMETRIC_MINISWHITE)||(photometric==PHOTOMETRIC_PALETTE)){
+			if	(bitspersample == 1){
+				head.biBitCount=1;		//B&W image
+				head.biClrUsed =2;
+			} else if (bitspersample == 4) {
+				head.biBitCount=4;		//16 colors gray scale
+				head.biClrUsed =16;
+			} else {
+				head.biBitCount=8;		//gray scale
+				head.biClrUsed =256;
+			}
+		} else if (bitspersample == 4) {
+			head.biBitCount=4;			// 16 colors
+			head.biClrUsed=16;
+		} else {
+			head.biBitCount=8;			//256 colors
+			head.biClrUsed=256;
+		}
+
+		if ((bitspersample > 8) && (photometric==PHOTOMETRIC_PALETTE))	// + VK + (BIG palette! => convert to RGB)
+		{	head.biBitCount=24;
+			head.biClrUsed =0;
+		}
+	}
+
+	if (info.nEscape) cx_throw("Cancelled"); // <vho> - cancel decoding
+
+	Create(width,height,head.biBitCount,CXIMAGE_FORMAT_TIF);	//image creation
+	if (!pDib) cx_throw("CxImageTIF can't create image");
+
+#if CXIMAGE_SUPPORT_ALPHA
+	if (samplesperpixel==4) AlphaCreate();	//add alpha support for 32bpp tiffs
+	if (samplesperpixel==2 && bitspersample==8) AlphaCreate();	//add alpha support for 8bpp + alpha
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+	TIFFGetField(m_tif, TIFFTAG_COMPRESSION, &compression);
+	SetCodecOption(compression); // <DPR> save original compression type
+
+	if (isRGB) {
+		// Read the whole image into one big RGBA buffer using
+		// the traditional TIFFReadRGBAImage() API that we trust.
+		uint32* raster;		// retrieve RGBA image
+		uint32 *row;
+
+		raster = (uint32*)_TIFFmalloc(width * height * sizeof (uint32));
+		if (raster == NULL) cx_throw("No space for raster buffer");
+			
+		// Read the image in one chunk into an RGBA array
+		if(!TIFFReadRGBAImage(m_tif, width, height, raster, 1)) {
+				_TIFFfree(raster);
+				cx_throw("Corrupted TIFF file!");
+		}
+
+		// read the raster lines and save them in the DIB
+		// with RGB mode, we have to change the order of the 3 samples RGB
+		row = &raster[0];
+		bits2 = info.pImage;
+		for (y = 0; y < height; y++) {
+
+			if (info.nEscape){ // <vho> - cancel decoding
+				_TIFFfree(raster);
+				cx_throw("Cancelled");
+			}
+
+			bits = bits2;
+			for (x = 0; x < width; x++) {
+				*bits++ = (uint8_t)TIFFGetB(row[x]);
+				*bits++ = (uint8_t)TIFFGetG(row[x]);
+				*bits++ = (uint8_t)TIFFGetR(row[x]);
+#if CXIMAGE_SUPPORT_ALPHA
+				if (samplesperpixel==4) AlphaSet(x,y,(uint8_t)TIFFGetA(row[x]));
+#endif //CXIMAGE_SUPPORT_ALPHA
+			}
+			row += width;
+			bits2 += info.dwEffWidth;
+		}
+		_TIFFfree(raster);
+	} else {
+		int32_t BIG_palette = (bitspersample > 8) &&	// + VK
+						  (photometric==PHOTOMETRIC_PALETTE);		
+		if (BIG_palette && (bitspersample > 24))	// + VK
+			cx_throw("Too big palette to handle");		// + VK
+
+		RGBQUAD *pal;
+		pal=(RGBQUAD*)calloc(BIG_palette ? 1<<bitspersample : 256,sizeof(RGBQUAD)); 
+			// ! VK: it coasts nothing but more correct to use 256 as temp palette storage
+			// ! VK: but for case of BIG palette it just copied
+		if (pal==NULL) cx_throw("Unable to allocate TIFF palette");
+
+		int32_t bpp = bitspersample <= 8 ? bitspersample : 8; // + VK (to use instead of bitspersample for case of > 8)
+
+		// set up the colormap based on photometric	
+		switch(photometric) {
+			case PHOTOMETRIC_MINISBLACK:	// bitmap and greyscale image types
+			case PHOTOMETRIC_MINISWHITE:
+				if (bitspersample == 1) {	// Monochrome image
+					if (photometric == PHOTOMETRIC_MINISBLACK) {
+						pal[1].rgbRed = pal[1].rgbGreen = pal[1].rgbBlue = 255;
+					} else {
+						pal[0].rgbRed = pal[0].rgbGreen = pal[0].rgbBlue = 255;
+					}
+				} else {		// need to build the scale for greyscale images
+					if (photometric == PHOTOMETRIC_MINISBLACK) {
+						for (int32_t i=0; i<(1<<bpp); i++){
+							pal[i].rgbRed = pal[i].rgbGreen = pal[i].rgbBlue = (uint8_t)(i*(255/((1<<bpp)-1)));
+						}
+					} else {
+						for (int32_t i=0; i<(1<<bpp); i++){
+							pal[i].rgbRed = pal[i].rgbGreen = pal[i].rgbBlue = (uint8_t)(255-i*(255/((1<<bpp)-1)));
+						}
+					}
+				}
+				break;
+			case PHOTOMETRIC_PALETTE:	// color map indexed
+				uint16 *red;
+				uint16 *green;
+				uint16 *blue;
+				TIFFGetField(m_tif, TIFFTAG_COLORMAP, &red, &green, &blue); 
+
+				// Is the palette 16 or 8 bits ?
+				BOOL Palette16Bits = /*FALSE*/ BIG_palette;
+				if (!BIG_palette) {
+					int32_t n= 1<<bpp;
+					while (n-- > 0) {
+						if (red[n] >= 256 || green[n] >= 256 || blue[n] >= 256) {
+							Palette16Bits=TRUE;
+							break;
+						}
+					}
+				}
+
+				// load the palette in the DIB
+				for (int32_t i = (1 << ( BIG_palette ? bitspersample : bpp )) - 1; i >= 0; i--) {
+					if (Palette16Bits) {
+						pal[i].rgbRed =(uint8_t) CVT(red[i]);
+						pal[i].rgbGreen = (uint8_t) CVT(green[i]);
+						pal[i].rgbBlue = (uint8_t) CVT(blue[i]);           
+					} else {
+						pal[i].rgbRed = (uint8_t) red[i];
+						pal[i].rgbGreen = (uint8_t) green[i];
+						pal[i].rgbBlue = (uint8_t) blue[i];        
+					}
+				}
+				break;
+		}
+		if (!BIG_palette) { // + VK (BIG palette is stored until image is ready)
+			SetPalette(pal,/*head.biClrUsed*/ 1<<bpp);	//palette assign // * VK
+			free(pal); 
+			pal = NULL; 
+		}
+
+		// read the tiff lines and save them in the DIB
+		uint32 nrow;
+		uint32 ys;
+		int32_t line = CalculateLine(width, bitspersample * samplesperpixel);
+		
+		int32_t bitsize = TIFFStripSize(m_tif);
+		//verify bitsize: could be wrong if StripByteCounts is missing.
+		if (bitsize>(int32_t)(head.biSizeImage*samplesperpixel))
+			bitsize = head.biSizeImage*samplesperpixel;
+		if (bitsize<(int32_t)(info.dwEffWidth*rowsperstrip))
+			bitsize = info.dwEffWidth*rowsperstrip;
+
+		if ((bitspersample > 8) && (bitspersample != 16))	// + VK (for bitspersample == 9..15,17..32..64
+			bitsize *= (bitspersample + 7)/8; 
+
+		int32_t tiled_image = TIFFIsTiled(m_tif);
+		uint32 tw=0, tl=0;
+		uint8_t* tilebuf=NULL;
+		if (tiled_image){
+			TIFFGetField(m_tif, TIFFTAG_TILEWIDTH, &tw);
+			TIFFGetField(m_tif, TIFFTAG_TILELENGTH, &tl);
+			rowsperstrip = tl;
+			bitsize = TIFFTileSize(m_tif) * (int32_t)(1+width/tw);
+			tilebuf = (uint8_t*)malloc(TIFFTileSize(m_tif));
+		}
+		
+		bits = (uint8_t*)malloc(bitspersample==16? bitsize*2 : bitsize); // * VK
+		uint8_t * bits16 = NULL;										  // + VK
+		int32_t line16    = 0;											  // + VK
+
+		if (!tiled_image && bitspersample==16) {					  // + VK +
+			line16 = line;
+			line   = CalculateLine(width, 8 * samplesperpixel);
+			bits16 = bits;
+			bits   = (uint8_t*)malloc(bitsize);
+		}
+
+		if (bits==NULL){
+			if (bits16) free(bits16);								  // + VK
+			if (pal)	free(pal);									  // + VK
+			if (tilebuf)free(tilebuf);								  // + VK	
+			cx_throw("CxImageTIF can't allocate memory");
+		}
+
+#ifdef FIX_16BPP_DARKIMG // + VK: for each line, store shift count bits used to fix it
+		uint8_t* row_shifts = NULL;
+		if (bits16) row_shifts = (uint8_t*)malloc(height); 
+#endif
+
+		for (ys = 0; ys < height; ys += rowsperstrip) {
+
+			if (info.nEscape){ // <vho> - cancel decoding
+				free(bits);
+				cx_throw("Cancelled");
+			}
+
+			nrow = (ys + rowsperstrip > height ? height - ys : rowsperstrip);
+
+			if (tiled_image){
+				uint32 imagew = TIFFScanlineSize(m_tif);
+				uint32 tilew  = TIFFTileRowSize(m_tif);
+				int32_t iskew = imagew - tilew;
+				uint8* bufp = (uint8*) bits;
+
+				uint32 colb = 0;
+				for (uint32 col = 0; col < width; col += tw) {
+					if (TIFFReadTile(m_tif, tilebuf, col, ys, 0, 0) < 0){
+						free(tilebuf);
+						free(bits);
+						cx_throw("Corrupted tiled TIFF file!");
+					}
+
+					if (colb + tw > imagew) {
+						uint32 owidth = imagew - colb;
+						uint32 oskew = tilew - owidth;
+						TileToStrip(bufp + colb, tilebuf, nrow, owidth, oskew + iskew, oskew );
+					} else {
+						TileToStrip(bufp + colb, tilebuf, nrow, tilew, iskew, 0);
+					}
+					colb += tilew;
+				}
+
+			} else {
+				if (TIFFReadEncodedStrip(m_tif, TIFFComputeStrip(m_tif, ys, 0), 
+					(bits16? bits16 : bits), nrow * (bits16 ? line16 : line)) == -1) { // * VK
+
+#ifdef NOT_IGNORE_CORRUPTED
+					free(bits);
+					if (bits16) free(bits16);  // + VK
+					cx_throw("Corrupted TIFF file!");
+#else
+					break;
+#endif
+				}
+			}
+
+			for (y = 0; y < nrow; y++) {
+				int32_t offset=(nrow-y-1)*line;
+				if ((bitspersample==16) && !BIG_palette) {	// * VK
+					int32_t offset16 = (nrow-y-1)*line16;		// + VK
+					if (bits16)	{							// + VK +
+#ifdef FIX_16BPP_DARKIMG
+						int32_t the_shift;
+						uint8_t hi_byte, hi_max=0;
+						uint32_t xi;
+						for (xi=0;xi<(uint32)line;xi++) {
+							hi_byte = bits16[xi*2+offset16+1];
+							if(hi_byte>hi_max)
+								hi_max = hi_byte;
+						}
+						the_shift = (hi_max == 0) ? 8 : 0;
+						if (!the_shift)
+							while( ! (hi_max & 0x80) ) {
+								the_shift++;
+								hi_max <<= 1;
+							}
+						row_shifts[height-ys-nrow+y] = the_shift;
+						the_shift = 8 - the_shift;
+						for (xi=0;xi<(uint32)line;xi++) 
+							bits[xi+offset]= ((bits16[xi*2+offset16+1]<<8) | bits16[xi*2+offset16]) >> the_shift;
+#else
+						for (uint32_t xi=0;xi<(uint32)line;xi++) 
+							bits[xi+offset]=bits16[xi*2+offset16+1];
+#endif
+					} else {
+						for (uint32_t xi=0;xi<width;xi++)
+							bits[xi+offset]=bits[xi*2+offset+1];
+							}
+				}
+				if (samplesperpixel==1) { 
+					if (BIG_palette)
+						if (bits16) {
+							int32_t offset16 = (nrow-y-1)*line16;		// + VK
+							MoveBitsPal( info.pImage + info.dwEffWidth * (height-ys-nrow+y),
+									 bits16 + offset16, width, bitspersample, pal );
+						} else
+							MoveBitsPal( info.pImage + info.dwEffWidth * (height-ys-nrow+y),
+									 bits + offset, width, bitspersample, pal );
+					else if ((bitspersample == head.biBitCount) || 
+						(bitspersample == 16))	//simple 8bpp, 4bpp image or 16bpp
+						memcpy(info.pImage+info.dwEffWidth*(height-ys-nrow+y),bits+offset,min((unsigned)line, info.dwEffWidth));
+					else
+						MoveBits( info.pImage + info.dwEffWidth * (height-ys-nrow+y),
+								  bits + offset, width, bitspersample );
+				} else if (samplesperpixel==2) { //8bpp image with alpha layer
+					int32_t xi=0;
+					int32_t ii=0;
+					int32_t yi=height-ys-nrow+y;
+#if CXIMAGE_SUPPORT_ALPHA
+					if (!pAlpha) AlphaCreate();			// + VK
+#endif //CXIMAGE_SUPPORT_ALPHA
+					while (ii<line){
+						SetPixelIndex(xi,yi,bits[ii+offset]);
+#if CXIMAGE_SUPPORT_ALPHA
+						AlphaSet(xi,yi,bits[ii+offset+1]);
+#endif //CXIMAGE_SUPPORT_ALPHA
+						ii+=2;
+						xi++;
+						if (xi>=(int32_t)width){
+							yi--;
+							xi=0;
+						}
+					}
+				} else { //photometric==PHOTOMETRIC_CIELAB
+					if (head.biBitCount!=24){ //fix image
+						Create(width,height,24,CXIMAGE_FORMAT_TIF);
+#if CXIMAGE_SUPPORT_ALPHA
+						if (samplesperpixel==4) AlphaCreate();
+#endif //CXIMAGE_SUPPORT_ALPHA
+					}
+
+					int32_t xi=0;
+					uint32 ii=0;
+					int32_t yi=height-ys-nrow+y;
+					RGBQUAD c;
+					int32_t l,a,b,bitsoffset;
+					double p,cx,cy,cz,cr,cg,cb;
+					while (ii</*line*/width){		// * VK
+						bitsoffset = ii*samplesperpixel+offset;
+						l=bits[bitsoffset];
+						a=bits[bitsoffset+1];
+						b=bits[bitsoffset+2];
+						if (a>127) a-=256;
+						if (b>127) b-=256;
+						// lab to xyz
+						p = (l/2.55 + 16) / 116.0;
+						cx = pow( p + a * 0.002, 3);
+						cy = pow( p, 3);
+						cz = pow( p - b * 0.005, 3);
+						// white point
+						cx*=0.95047;
+						//cy*=1.000;
+						cz*=1.0883;
+						// xyz to rgb
+						cr =  3.240479 * cx - 1.537150 * cy - 0.498535 * cz;
+						cg = -0.969256 * cx + 1.875992 * cy + 0.041556 * cz;
+						cb =  0.055648 * cx - 0.204043 * cy + 1.057311 * cz;
+
+						if ( cr > 0.00304 ) cr = 1.055 * pow(cr,0.41667) - 0.055;
+							else            cr = 12.92 * cr;
+						if ( cg > 0.00304 ) cg = 1.055 * pow(cg,0.41667) - 0.055;
+							else            cg = 12.92 * cg;
+						if ( cb > 0.00304 ) cb = 1.055 * pow(cb,0.41667) - 0.055;
+							else            cb = 12.92 * cb;
+
+						c.rgbRed  =(uint8_t)max(0,min(255,(int32_t)(cr*255)));
+						c.rgbGreen=(uint8_t)max(0,min(255,(int32_t)(cg*255)));
+						c.rgbBlue =(uint8_t)max(0,min(255,(int32_t)(cb*255)));
+
+						SetPixelColor(xi,yi,c);
+#if CXIMAGE_SUPPORT_ALPHA
+						if (samplesperpixel==4) AlphaSet(xi,yi,bits[bitsoffset+3]);
+#endif //CXIMAGE_SUPPORT_ALPHA
+						ii++;
+						xi++;
+						if (xi>=(int32_t)width){
+							yi--;
+							xi=0;
+						}
+					}
+				}
+			}
+		}
+		free(bits);
+		if (bits16) free(bits16);
+
+#ifdef FIX_16BPP_DARKIMG
+		if (row_shifts && (samplesperpixel == 1) && (bitspersample==16) && !BIG_palette) {
+			// 1. calculate maximum necessary shift
+			int32_t min_row_shift = 8;
+			for( y=0; y<height; y++ ) {
+				if (min_row_shift > row_shifts[y]) min_row_shift = row_shifts[y];
+			}
+			// 2. for rows having less shift value, correct such rows:
+			for( y=0; y<height; y++ ) {
+				if (min_row_shift < row_shifts[y]) {
+					int32_t need_shift = row_shifts[y] - min_row_shift;
+					uint8_t* data = info.pImage + info.dwEffWidth * y;
+					for( x=0; x<width; x++, data++ )
+						*data >>= need_shift;
+				}
+			}
+		}
+		if (row_shifts)	free( row_shifts );
+#endif
+
+		if (tiled_image) free(tilebuf);
+		if (pal)		 free(pal);
+
+		switch(orientation){
+		case ORIENTATION_TOPRIGHT: /* row 0 top, col 0 rhs */
+			Mirror();
+			break;
+		case ORIENTATION_BOTRIGHT: /* row 0 bottom, col 0 rhs */
+			Flip();
+			Mirror();
+			break;
+		case ORIENTATION_BOTLEFT: /* row 0 bottom, col 0 lhs */
+			Flip();
+			break;
+		case ORIENTATION_LEFTTOP: /* row 0 lhs, col 0 top */
+			RotateRight();
+			Mirror();
+			break;
+		case ORIENTATION_RIGHTTOP: /* row 0 rhs, col 0 top */
+			RotateLeft();
+			break;
+		case ORIENTATION_RIGHTBOT: /* row 0 rhs, col 0 bottom */
+			RotateLeft();
+			Mirror();
+			break;
+		case ORIENTATION_LEFTBOT: /* row 0 lhs, col 0 bottom */
+			RotateRight();
+			break;
+		}
+
+	}
+  } cx_catch {
+	  if (strcmp(message,"")) strncpy(info.szLastError,message,255);
+	  if (m_tif) TIFFClose(m_tif);
+	  if (info.nEscape == -1 && info.dwType == CXIMAGE_FORMAT_TIF) return true;
+	  return false;
+  }
+	TIFFClose(m_tif);
+	return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif //CXIMAGE_SUPPORT_DECODE
+////////////////////////////////////////////////////////////////////////////////
+#if CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageTIF::Encode(CxFile * hFile, bool bAppend)
+{
+  cx_try
+  {
+	if (hFile==NULL) cx_throw(CXIMAGE_ERR_NOFILE);
+	if (pDib==NULL) cx_throw(CXIMAGE_ERR_NOIMAGE);
+
+	// <RJ> replaced "w+b" with "a", to append an image directly on an existing file
+	if (m_tif2==NULL) m_tif2=_TIFFOpenEx(hFile, "a");
+	if (m_tif2==NULL) cx_throw("initialization fail");
+
+	if (bAppend || m_pages) m_multipage=true;
+	m_pages++;
+
+	if (!EncodeBody(m_tif2,m_multipage,m_pages,m_pages)) cx_throw("Error saving TIFF file");
+	if (bAppend) {
+		if (!TIFFWriteDirectory(m_tif2)) cx_throw("Error saving TIFF directory");
+	}
+  } cx_catch {
+	  if (strcmp(message,"")) strncpy(info.szLastError,message,255);
+	  if (m_tif2){
+		  TIFFClose(m_tif2);
+		  m_tif2=NULL;
+		  m_multipage=false;
+		  m_pages=0;
+	  }
+	  return false;
+  }
+	if (!bAppend){
+		TIFFClose(m_tif2);
+		m_tif2=NULL;
+		m_multipage=false;
+		m_pages=0;
+	}
+	return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+// Thanks to Abe <God(dot)bless(at)marihuana(dot)com>
+bool CxImageTIF::Encode(CxFile * hFile, CxImage ** pImages, int32_t pagecount)
+{
+  cx_try
+  {
+	if (hFile==NULL) cx_throw("invalid file pointer");
+	if (pImages==NULL || pagecount<=0) cx_throw("multipage TIFF, no images!");
+
+	int32_t i;
+	for (i=0; i<pagecount; i++){
+		if (pImages[i]==NULL)
+			cx_throw("Bad image pointer");
+		if (!(pImages[i]->IsValid()))
+			cx_throw("Empty image");
+	}
+
+	CxImageTIF ghost;
+	for (i=0; i<pagecount; i++){
+		ghost.Ghost(pImages[i]);
+		if (!ghost.Encode(hFile,true)) cx_throw("Error saving TIFF file");
+	}
+  } cx_catch {
+	  if (strcmp(message,"")) strncpy(info.szLastError,message,255);
+	  return false;
+  }
+	return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+bool CxImageTIF::EncodeBody(TIFF *m_tif, bool multipage, int32_t page, int32_t pagecount)
+{
+	uint32 height=head.biHeight;
+	uint32 width=head.biWidth;
+	uint16 bitcount=head.biBitCount;
+	uint16 bitspersample;
+	uint16 samplesperpixel;
+	uint16 photometric=0;
+	uint16 compression;
+//	uint16 pitch;
+//	int32_t line;
+	uint32 x, y;
+
+	samplesperpixel = ((bitcount == 24) || (bitcount == 32)) ? (uint8_t)3 : (uint8_t)1;
+#if CXIMAGE_SUPPORT_ALPHA
+	if (bitcount==24 && AlphaIsValid()) { bitcount=32; samplesperpixel=4; }
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+	bitspersample = bitcount / samplesperpixel;
+
+	//set the PHOTOMETRIC tag
+	RGBQUAD *rgb = GetPalette();
+	switch (bitcount) {
+		case 1:
+			if (CompareColors(&rgb[0],&rgb[1])<0) {
+				/* <abe> some viewers do not handle PHOTOMETRIC_MINISBLACK:
+				 * let's transform the image in PHOTOMETRIC_MINISWHITE
+				 */
+				//invert the colors
+				RGBQUAD tempRGB=GetPaletteColor(0);
+				SetPaletteColor(0,GetPaletteColor(1));
+				SetPaletteColor(1,tempRGB);
+				//invert the pixels
+				uint8_t *iSrc=info.pImage;
+				for (uint32_t i=0;i<head.biSizeImage;i++){
+					*iSrc=(uint8_t)~(*(iSrc));
+					iSrc++;
+				}
+				photometric = PHOTOMETRIC_MINISWHITE;
+				//photometric = PHOTOMETRIC_MINISBLACK;
+			} else {
+				photometric = PHOTOMETRIC_MINISWHITE;
+			}
+			break;
+		case 4:	// Check if the DIB has a color or a greyscale palette
+		case 8:
+			photometric = PHOTOMETRIC_MINISBLACK; //default to gray scale
+			for (x = 0; x < head.biClrUsed; x++) {
+				if ((rgb->rgbRed != x)||(rgb->rgbRed != rgb->rgbGreen)||(rgb->rgbRed != rgb->rgbBlue)){
+					photometric = PHOTOMETRIC_PALETTE;
+					break;
+				}
+				rgb++;
+			}
+			break;
+		case 24:
+		case 32:
+			photometric = PHOTOMETRIC_RGB;			
+			break;
+	}
+
+#if CXIMAGE_SUPPORT_ALPHA
+	if (AlphaIsValid() && bitcount==8) samplesperpixel=2; //8bpp + alpha layer
+#endif //CXIMAGE_SUPPORT_ALPHA
+
+//	line = CalculateLine(width, bitspersample * samplesperpixel);
+//	pitch = (uint16)CalculatePitch(line);
+
+	//prepare the palette struct
+	RGBQUAD pal[256];
+	if (GetPalette()){
+		uint8_t b;
+		memcpy(pal,GetPalette(),GetPaletteSize());
+		for(uint16_t a=0;a<head.biClrUsed;a++){	//swap blue and red components
+			b=pal[a].rgbBlue; pal[a].rgbBlue=pal[a].rgbRed; pal[a].rgbRed=b;
+		}
+	}
+
+	// handle standard width/height/bpp stuff
+	TIFFSetField(m_tif, TIFFTAG_IMAGEWIDTH, width);
+	TIFFSetField(m_tif, TIFFTAG_IMAGELENGTH, height);
+	TIFFSetField(m_tif, TIFFTAG_SAMPLESPERPIXEL, samplesperpixel);
+	TIFFSetField(m_tif, TIFFTAG_BITSPERSAMPLE, bitspersample);
+	TIFFSetField(m_tif, TIFFTAG_PHOTOMETRIC, photometric);
+	TIFFSetField(m_tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);	// single image plane 
+	TIFFSetField(m_tif, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
+
+	uint32 rowsperstrip = TIFFDefaultStripSize(m_tif, (uint32) -1);  //<REC> gives better compression
+	TIFFSetField(m_tif, TIFFTAG_ROWSPERSTRIP, rowsperstrip);
+
+	// handle metrics
+	TIFFSetField(m_tif, TIFFTAG_RESOLUTIONUNIT, RESUNIT_INCH);
+	TIFFSetField(m_tif, TIFFTAG_XRESOLUTION, (float)info.xDPI);
+	TIFFSetField(m_tif, TIFFTAG_YRESOLUTION, (float)info.yDPI);
+//	TIFFSetField(m_tif, TIFFTAG_XPOSITION, (float)info.xOffset);
+//	TIFFSetField(m_tif, TIFFTAG_YPOSITION, (float)info.yOffset);
+
+	// multi-paging - Thanks to Abe <God(dot)bless(at)marihuana(dot)com>
+	if (multipage)
+	{
+		char page_number[20];
+		sprintf(page_number, "Page %d", page);
+
+		TIFFSetField(m_tif, TIFFTAG_SUBFILETYPE, FILETYPE_PAGE);
+		TIFFSetField(m_tif, TIFFTAG_PAGENUMBER, page,pagecount);
+		TIFFSetField(m_tif, TIFFTAG_PAGENAME, page_number);
+	} else {
+		TIFFSetField(m_tif, TIFFTAG_SUBFILETYPE, 0);
+	}
+
+	// palettes (image colormaps are automatically scaled to 16-bits)
+	if (photometric == PHOTOMETRIC_PALETTE) {
+		uint16 *r, *g, *b;
+		r = (uint16 *) _TIFFmalloc(sizeof(uint16) * 3 * 256);
+		g = r + 256;
+		b = g + 256;
+
+		for (int32_t i = 255; i >= 0; i--) {
+			b[i] = (uint16)SCALE((uint16)pal[i].rgbRed);
+			g[i] = (uint16)SCALE((uint16)pal[i].rgbGreen);
+			r[i] = (uint16)SCALE((uint16)pal[i].rgbBlue);
+		}
+
+		TIFFSetField(m_tif, TIFFTAG_COLORMAP, r, g, b);
+		_TIFFfree(r);
+	}
+
+	// compression
+	if (GetCodecOption(CXIMAGE_FORMAT_TIF)) {
+		compression = (uint16_t)GetCodecOption(CXIMAGE_FORMAT_TIF);
+	} else {
+		switch (bitcount) {
+			case 1 :
+				compression = COMPRESSION_CCITTFAX4;
+				break;
+			case 4 :
+			case 8 :
+				compression = COMPRESSION_LZW;
+				break;
+			case 24 :
+			case 32 :
+				compression = COMPRESSION_JPEG;
+				break;
+			default :
+				compression = COMPRESSION_NONE;
+				break;
+		}
+	}
+	TIFFSetField(m_tif, TIFFTAG_COMPRESSION, compression);
+
+	switch (compression) {
+	case COMPRESSION_JPEG:
+		TIFFSetField(m_tif, TIFFTAG_JPEGQUALITY, GetJpegQuality());
+		TIFFSetField(m_tif, TIFFTAG_ROWSPERSTRIP, ((7+rowsperstrip)>>3)<<3);
+   		break;
+	case COMPRESSION_LZW:
+		if (bitcount>=8) TIFFSetField(m_tif, TIFFTAG_PREDICTOR, 2);
+		break;
+	}
+
+	// read the DIB lines from bottom to top and save them in the TIF
+
+	uint8_t *bits;
+	switch(bitcount) {				
+		case 1 :
+		case 4 :
+		case 8 :
+		{
+			if (samplesperpixel==1){
+				bits = (uint8_t*)malloc(info.dwEffWidth);
+				if (!bits) return false;
+				for (y = 0; y < height; y++) {
+					memcpy(bits,info.pImage + (height - y - 1)*info.dwEffWidth,info.dwEffWidth);
+					if (TIFFWriteScanline(m_tif,bits, y, 0)==-1){
+						free(bits);
+						return false;
+					}
+				}
+				free(bits);
+			}
+#if CXIMAGE_SUPPORT_ALPHA
+			else { //8bpp + alpha layer
+				bits = (uint8_t*)malloc(2*width);
+				if (!bits) return false;
+				for (y = 0; y < height; y++) {
+					for (x=0;x<width;x++){
+						bits[2*x]=BlindGetPixelIndex(x,height - y - 1);
+						bits[2*x+1]=AlphaGet(x,height - y - 1);
+					}
+					if (TIFFWriteScanline(m_tif,bits, y, 0)==-1) {
+						free(bits);
+						return false;
+					}
+				}
+				free(bits);
+			}
+#endif //CXIMAGE_SUPPORT_ALPHA
+			break;
+		}				
+		case 24:
+		{
+			uint8_t *buffer = (uint8_t *)malloc(info.dwEffWidth);
+			if (!buffer) return false;
+			for (y = 0; y < height; y++) {
+				// get a pointer to the scanline
+				memcpy(buffer, info.pImage + (height - y - 1)*info.dwEffWidth, info.dwEffWidth);
+				// TIFFs store color data RGB instead of BGR
+				uint8_t *pBuf = buffer;
+				for (x = 0; x < width; x++) {
+					uint8_t tmp = pBuf[0];
+					pBuf[0] = pBuf[2];
+					pBuf[2] = tmp;
+					pBuf += 3;
+				}
+				// write the scanline to disc
+				if (TIFFWriteScanline(m_tif, buffer, y, 0)==-1){
+					free(buffer);
+					return false;
+				}
+			}
+			free(buffer);
+			break;
+		}				
+		case 32 :
+		{
+#if CXIMAGE_SUPPORT_ALPHA
+			uint8_t *buffer = (uint8_t *)malloc((info.dwEffWidth*4)/3);
+			if (!buffer) return false;
+			for (y = 0; y < height; y++) {
+				// get a pointer to the scanline
+				memcpy(buffer, info.pImage + (height - y - 1)*info.dwEffWidth, info.dwEffWidth);
+				// TIFFs store color data RGB instead of BGR
+				uint8_t *pSrc = buffer + 3 * width;
+				uint8_t *pDst = buffer + 4 * width;
+				for (x = 0; x < width; x++) {
+					pDst-=4;
+					pSrc-=3;
+					pDst[3] = AlphaGet(width-x-1,height-y-1);
+					pDst[2] = pSrc[0];
+					pDst[1] = pSrc[1];
+					pDst[0] = pSrc[2];
+				}
+				// write the scanline to disc
+				if (TIFFWriteScanline(m_tif, buffer, y, 0)==-1){
+					free(buffer);
+					return false;
+				}
+			}
+			free(buffer);
+#endif //CXIMAGE_SUPPORT_ALPHA
+			break;
+		}				
+	}
+	return true;
+}
+////////////////////////////////////////////////////////////////////////////////
+#endif // CXIMAGE_SUPPORT_ENCODE
+////////////////////////////////////////////////////////////////////////////////
+void CxImageTIF::TileToStrip(uint8* out, uint8* in,	uint32 rows, uint32 cols, int32_t outskew, int32_t inskew)
+{
+	while (rows-- > 0) {
+		uint32 j = cols;
+		while (j-- > 0)
+			*out++ = *in++;
+		out += outskew;
+		in += inskew;
+	}
+}
+////////////////////////////////////////////////////////////////////////////////
+TIFF* CxImageTIF::TIFFOpenEx(CxFile * hFile)
+{
+	if (hFile) return _TIFFOpenEx(hFile, "rb");
+	return NULL;
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageTIF::TIFFCloseEx(TIFF* tif)
+{
+	if (tif) TIFFClose(tif);
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageTIF::MoveBits( uint8_t* dest, uint8_t* from, int32_t count, int32_t bpp )
+{	int32_t offbits = 0;
+	uint16 w;
+	uint32 d;
+	if (bpp <= 8) {
+		while (count-- > 0) {
+			if (offbits + bpp <= 8)
+				w = *from >> (8 - offbits - bpp);
+			else {
+		        w = *from++ << (offbits + bpp - 8);
+				w |= *from >> (16 - offbits - bpp);
+			}
+			offbits += bpp;
+			if (offbits >= 8) {
+				offbits -= 8;
+		        if (offbits == 0) from++;
+			}	
+			*dest++ = (uint8_t)w & ((1 << bpp)-1);
+		}
+	} else if (bpp < 16) {
+		while (count-- > 0) {
+			d = (*from << 24) | (from[1]<<16) | (from[2]<<8) | from[3];
+			d >>= (24 - offbits);
+			*dest++ = (uint8_t) ( d );
+			offbits += bpp;
+			while (offbits >= 8) {
+				from++;
+				offbits -= 8;
+			}
+		}
+	} else if (bpp < 32) {
+		while (count-- > 0) {
+			d = (*from << 24) | (from[1]<<16) | (from[2]<<8) | from[3];
+			//d = *(uint32*)from;
+			*dest++ = (uint8_t) ( d >> (offbits + bpp - 8) );
+			offbits += bpp;
+			while (offbits >= 8) {
+				from++;
+				offbits -= 8;
+			}
+		}
+	} else {
+		while (count-- > 0) {
+			d = *(uint32*)from;
+			*dest++ = (uint8_t) (d >> 24);
+			from += 4;
+		}
+	}
+}
+////////////////////////////////////////////////////////////////////////////////
+void CxImageTIF::MoveBitsPal( uint8_t* dest, uint8_t*from, int32_t count, int32_t bpp, RGBQUAD* pal )
+{	int32_t offbits = 0;
+	uint32 d;
+	uint16 palidx;
+	while (count-- > 0) {
+		d = (*from << 24) | ( *( from + 1 ) << 16 )
+						  | ( *( from + 2 ) << 8 )
+						  | ( *( from + 3 ) );
+		palidx = (uint16) (d >> (32 - offbits - bpp));
+		if (bpp < 16) {
+			palidx <<= 16-bpp;
+			palidx = (palidx >> 8) | (palidx <<8);
+			palidx >>= 16-bpp;
+		} else palidx = (palidx >> 8) | (palidx << 8);
+		*dest++ = pal[palidx].rgbBlue;
+		*dest++ = pal[palidx].rgbGreen;
+		*dest++ = pal[palidx].rgbRed;
+		offbits += bpp;
+		while (offbits >= 8) {
+			from++;
+			offbits -= 8;
+		}
+	}
+}
+////////////////////////////////////////////////////////////////////////////////
+
+#endif // CXIMAGE_SUPPORT_TIF
-- 
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