bool CxImageTIF::Encode(CxFile * hFile, bool bAppend) { try{ if (hFile==NULL) throw "invalid file pointer"; // <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) throw "initialization fail"; if (bAppend || m_pages) m_multipage=true; m_pages++; if (!EncodeBody(m_tif2,m_multipage,m_pages,m_pages)) throw "Error saving TIFF file"; if (bAppend) { if (!TIFFWriteDirectory(m_tif2)) throw "Error saving TIFF directory"; } } catch (char *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; }
BOOL CImageTIFF::Read(FILE* stream) { TIFF* m_tif = TIFFOpenEx(stream, "rb"); uint32 height=0; uint32 width=0; uint16 bitspersample=1; uint16 samplesperpixel=1; uint32 rowsperstrip=-1; uint16 photometric=0; uint16 compression=1; uint32 x, y; BOOL isRGB; BYTE *bits; //pointer to source data BYTE *bits2; //pointer to destination data try{ //check if it's a tiff file if (!m_tif) throw "Error encountered while opening TIFF file"; m_info.nNumFrames=0; while(TIFFSetDirectory(m_tif,(uint16)m_info.nNumFrames)) m_info.nNumFrames++; if (!TIFFSetDirectory(m_tif, (uint16)m_info.nFrame)) throw "Error: page not present in TIFF file"; //get image m_info TIFFGetField(m_tif, TIFFTAG_COMPRESSION, &compression); if (compression == COMPRESSION_LZW) throw "LZW compression is no longer supported due to Unisys patent enforcement"; 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); m_header.biWidth = width; m_header.biHeight = height; m_header.biClrUsed=0; m_info.nBkgndIndex =-1; isRGB = (bitspersample >= 8) && (photometric == PHOTOMETRIC_RGB) || (photometric == PHOTOMETRIC_YCBCR) || (photometric == PHOTOMETRIC_SEPARATED) || (photometric == PHOTOMETRIC_LOGLUV); if (isRGB){ m_header.biBitCount=24; m_info.bColorType = COLORTYPE_COLOR; }else{ m_info.bColorType = COLORTYPE_PALETTE; if ((photometric==PHOTOMETRIC_MINISBLACK)||(photometric==PHOTOMETRIC_MINISWHITE)){ if (bitspersample == 1){ m_header.biBitCount=1; //B&W image m_header.biClrUsed =2; } else { m_header.biBitCount=8; //gray scale m_header.biClrUsed =256; } } else if (bitspersample == 4) { m_header.biBitCount=4; // 16 colors m_header.biClrUsed=16; } else { m_header.biBitCount=8; //256 colors m_header.biClrUsed=256; } } Create(m_header.biWidth,m_header.biHeight,m_header.biBitCount); //image creation 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) 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); 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 = m_info.pImage; for (y = 0; y < height; y++) { bits = bits2; for (x = 0; x < width; x++) { *bits++ = (BYTE)TIFFGetB(row[x]); *bits++ = (BYTE)TIFFGetG(row[x]); *bits++ = (BYTE)TIFFGetR(row[x]); } row += width; bits2 += m_info.dwEffWidth; } _TIFFfree(raster); } else { RGBQUAD *pal; pal=(RGBQUAD*)calloc(256,sizeof(RGBQUAD)); if (pal==NULL) throw "Unable to allocate TIFF palette"; // 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 (int i = 0; i < 256; i++) { pal[i].rgbRed = pal[i].rgbGreen = pal[i].rgbBlue = i; } } else { for (int i = 0; i < 256; i++) { pal[i].rgbRed = pal[i].rgbGreen = pal[i].rgbBlue = 255 - i; } } } 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; int n=1<<bitspersample; while (n-- > 0) { if (red[n] >= 256 || green[n] >= 256 || blue[n] >= 256) { Palette16Bits=TRUE; break; } } // load the palette in the DIB for (int i = (1 << bitspersample) - 1; i >= 0; i--) { if (Palette16Bits) { pal[i].rgbRed =(BYTE) CVT(red[i]); pal[i].rgbGreen = (BYTE) CVT(green[i]); pal[i].rgbBlue = (BYTE) CVT(blue[i]); } else { pal[i].rgbRed = (BYTE) red[i]; pal[i].rgbGreen = (BYTE) green[i]; pal[i].rgbBlue = (BYTE) blue[i]; } } break; } SetPalette(pal,m_header.biClrUsed); //palette assign free(pal); // read the tiff lines and save them in the DIB uint32 nrow; uint32 ys; int line = CalculateLine(width, bitspersample * samplesperpixel); // int pitch = CalculatePitch(line); long bitsize= TIFFStripSize(m_tif); bits = (BYTE*)malloc(bitsize); for (ys = 0; ys < height; ys += rowsperstrip) { nrow = (ys + rowsperstrip > height ? height - ys : rowsperstrip); if (TIFFReadEncodedStrip(m_tif, TIFFComputeStrip(m_tif, ys, 0), bits, nrow * line) == -1) { free(bits); throw "Corrupted TIFF file!"; } for (y = 0; y < nrow; y++) { memcpy(m_info.pImage+m_info.dwEffWidth*(height-ys-nrow+y),bits+(nrow-y-1)*line,line); } /*if (m_header.biClrUsed==2){ for (y = 0; y < nrow; y++) { for (x = 0; x < width; x++) { SetPixelIndex(x,y+ys,(bits[y*line+(x>>3)]>>(7-x%8))&0x01); }}}*/ } free(bits); } } catch (char *message) { strncpy(m_info.szLastError,message,255); if (m_tif) TIFFClose(m_tif); return FALSE; } TIFFClose(m_tif); return TRUE; }
BOOL CImageTIFF::Write(FILE* stream) { //prepare the palette struct RGBQUAD pal[256]; if (GetPalette()){ BYTE b; memcpy(pal,GetPalette(),GetPaletteSize()); for(WORD a=0;a<m_header.biClrUsed;a++){ //swap blue and red components b=pal[a].rgbBlue; pal[a].rgbBlue=pal[a].rgbRed; pal[a].rgbRed=b; } } TIFF *m_tif=NULL; // = (TIFF *)new(byte[512]); uint32 height=m_header.biHeight; uint32 width=m_header.biWidth; // uint32 rowsperstrip = (uint32) -1; uint16 bitspersample=m_header.biBitCount; uint16 samplesperpixel; uint16 photometric; uint16 compression; uint16 pitch; int line; uint32 x, y; samplesperpixel = ((bitspersample == 24) || (bitspersample == 32)) ? 3 : 1; photometric = (samplesperpixel==3) ? PHOTOMETRIC_RGB : PHOTOMETRIC_PALETTE; line = CalculateLine(width, bitspersample * samplesperpixel); pitch = CalculatePitch(line); m_tif=TIFFOpenEx(stream, "wb"); if (m_tif==NULL) return FALSE; // 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 == 32) ? 24 : bitspersample) / samplesperpixel); TIFFSetField(m_tif, TIFFTAG_PHOTOMETRIC, photometric); TIFFSetField(m_tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG); // single image plane TIFFSetField(m_tif, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT); TIFFSetField(m_tif, TIFFTAG_ROWSPERSTRIP, 1); // TIFFSetField(m_tif, TIFFTAG_ROWSPERSTRIP, TIFFDefaultStripSize(m_tif, rowsperstrip)); // handle metrics TIFFSetField(m_tif, TIFFTAG_RESOLUTIONUNIT, RESUNIT_INCH); TIFFSetField(m_tif, TIFFTAG_XRESOLUTION, 72.0); TIFFSetField(m_tif, TIFFTAG_YRESOLUTION, 72.0); // multi-paging // if (page >= 0) { // char page_number[20]; // sprintf(page_number, "Page %d", page); // // TIFFSetField(m_tif, TIFFTAG_SUBFILETYPE, FILETYPE_PAGE); // TIFFSetField(m_tif, TIFFTAG_PAGENUMBER, page); // 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 (int i = 255; i >= 0; i--) { b[i] = SCALE((uint16)pal[i].rgbRed); g[i] = SCALE((uint16)pal[i].rgbGreen); r[i] = SCALE((uint16)pal[i].rgbBlue); } TIFFSetField(m_tif, TIFFTAG_COLORMAP, r, g, b); _TIFFfree(r); } // compression switch(bitspersample) { case 1 : compression = COMPRESSION_CCITTFAX4; break; case 8 : case 24 : case 32 : compression = COMPRESSION_PACKBITS; break; default : compression = COMPRESSION_NONE; break; } TIFFSetField(m_tif, TIFFTAG_COMPRESSION, compression); // read the DIB lines from bottom to top // and save them in the TIF // ------------------------------------- BYTE *bits; switch(bitspersample) { case 1 : case 4 : case 8 : { for (y = 0; y < height; y++) { bits= m_info.pImage + (height - y - 1)*m_info.dwEffWidth; TIFFWriteScanline(m_tif,bits, y, 0); } break; } case 24: case 32 : { BYTE *buffer = (BYTE *)malloc(m_info.dwEffWidth); for (y = 0; y < height; y++) { // get a pointer to the scanline memcpy(buffer, m_info.pImage + (height - y - 1)*m_info.dwEffWidth, m_info.dwEffWidth); // TIFFs store color data RGB instead of BGR BYTE *pBuf = buffer; for (x = 0; x < width; x++) { BYTE tmp = pBuf[0]; pBuf[0] = pBuf[2]; pBuf[2] = tmp; pBuf += 3; } // write the scanline to disc TIFFWriteScanline(m_tif, buffer, y, 0); } free(buffer); break; } } TIFFClose(m_tif); return true; }
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=(DWORD)-1; uint16 photometric=0; uint16 compression=1; uint16 orientation=ORIENTATION_TOPLEFT; //<vho> uint32 x, y; float resolution, offset; BOOL isRGB; BYTE *bits; //pointer to source data BYTE *bits2; //pointer to destination data try{ //check if it's a tiff file if (!m_tif) 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)) throw "Error: page not present in TIFF file"; //get image info TIFFGetField(m_tif, TIFFTAG_COMPRESSION, &compression); // if (compression == COMPRESSION_LZW) // throw "LZW compression is no longer supported due to Unisys patent enforcement"; 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 (TIFFGetField(m_tif, TIFFTAG_XRESOLUTION, &resolution)) SetXDPI((long)resolution); if (TIFFGetField(m_tif, TIFFTAG_YRESOLUTION, &resolution)) SetYDPI((long)resolution); if (TIFFGetField(m_tif, TIFFTAG_XPOSITION, &offset)) info.xOffset = (long)offset; if (TIFFGetField(m_tif, TIFFTAG_YPOSITION, &offset)) info.yOffset = (long)offset; head.biClrUsed=0; info.nBkgndIndex =-1; if (rowsperstrip>height){ rowsperstrip=height; TIFFSetField(m_tif, TIFFTAG_ROWSPERSTRIP, rowsperstrip); } isRGB = (bitspersample >= 8) && (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)){ 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 (info.nEscape) throw "Cancelled"; // <vho> - cancel decoding Create(width,height,head.biBitCount,CXIMAGE_FORMAT_TIF); //image creation #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 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) 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); 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); throw "Cancelled"; } bits = bits2; for (x = 0; x < width; x++) { *bits++ = (BYTE)TIFFGetB(row[x]); *bits++ = (BYTE)TIFFGetG(row[x]); *bits++ = (BYTE)TIFFGetR(row[x]); #if CXIMAGE_SUPPORT_ALPHA if (samplesperpixel==4) AlphaSet(x,y,(BYTE)TIFFGetA(row[x])); #endif //CXIMAGE_SUPPORT_ALPHA } row += width; bits2 += info.dwEffWidth; } _TIFFfree(raster); } else { RGBQUAD *pal; pal=(RGBQUAD*)calloc(256,sizeof(RGBQUAD)); if (pal==NULL) throw "Unable to allocate TIFF palette"; // 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 (DWORD i=0; i<head.biClrUsed; i++){ pal[i].rgbRed = pal[i].rgbGreen = pal[i].rgbBlue = (BYTE)(i*(255/(head.biClrUsed-1))); } } else { for (DWORD i=0; i<head.biClrUsed; i++){ pal[i].rgbRed = pal[i].rgbGreen = pal[i].rgbBlue = (BYTE)(255-i*(255/(head.biClrUsed-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; int n=1<<bitspersample; while (n-- > 0) { if (red[n] >= 256 || green[n] >= 256 || blue[n] >= 256) { Palette16Bits=TRUE; break; } } // load the palette in the DIB for (int i = (1 << bitspersample) - 1; i >= 0; i--) { if (Palette16Bits) { pal[i].rgbRed =(BYTE) CVT(red[i]); pal[i].rgbGreen = (BYTE) CVT(green[i]); pal[i].rgbBlue = (BYTE) CVT(blue[i]); } else { pal[i].rgbRed = (BYTE) red[i]; pal[i].rgbGreen = (BYTE) green[i]; pal[i].rgbBlue = (BYTE) blue[i]; } } break; } SetPalette(pal,head.biClrUsed); //palette assign free(pal); // read the tiff lines and save them in the DIB uint32 nrow; uint32 ys; int line = CalculateLine(width, bitspersample * samplesperpixel); long bitsize= TIFFStripSize(m_tif); //verify bitsize: could be wrong if StripByteCounts is missing. if (bitsize>(long)(head.biSizeImage*samplesperpixel)) bitsize=head.biSizeImage*samplesperpixel; int tiled_image = TIFFIsTiled(m_tif); uint32 tw, tl; BYTE* tilebuf; if (tiled_image){ TIFFGetField(m_tif, TIFFTAG_TILEWIDTH, &tw); TIFFGetField(m_tif, TIFFTAG_TILELENGTH, &tl); rowsperstrip = tl; bitsize = TIFFTileSize(m_tif) * (int)(1+width/tw); tilebuf = (BYTE*)malloc(TIFFTileSize(m_tif)); } bits = (BYTE*)malloc(bitsize); for (ys = 0; ys < height; ys += rowsperstrip) { if (info.nEscape){ // <vho> - cancel decoding free(bits); throw "Cancelled"; } nrow = (ys + rowsperstrip > height ? height - ys : rowsperstrip); if (tiled_image){ uint32 imagew = TIFFScanlineSize(m_tif); uint32 tilew = TIFFTileRowSize(m_tif); int 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); 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), bits, nrow * line) == -1) { free(bits); throw "Corrupted TIFF file!"; } } for (y = 0; y < nrow; y++) { long offset=(nrow-y-1)*line; if (bitspersample==16) for (DWORD xi=0;xi<width;xi++) bits[xi+offset]=bits[xi*2+offset+1]; if (samplesperpixel==1) { //simple 8bpp image memcpy(info.pImage+info.dwEffWidth*(height-ys-nrow+y),bits+offset,info.dwEffWidth); } else if (samplesperpixel==2) { //8bpp image with alpha layer int xi=0; int ii=0; int yi=height-ys-nrow+y; while (ii<line){ SetPixelIndex(xi,yi,bits[ii*samplesperpixel+offset]); #if CXIMAGE_SUPPORT_ALPHA AlphaSet(xi,yi,bits[ii*samplesperpixel+offset+1]); #endif //CXIMAGE_SUPPORT_ALPHA ii++; xi++; if (xi>=(int)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 } int xi=0; int ii=0; int yi=height-ys-nrow+y; RGBQUAD c; int l,a,b; double p,cx,cy,cz,cr,cg,cb; while (ii<line){ l=bits[ii*samplesperpixel+offset]; a=bits[ii*samplesperpixel+offset+1]; b=bits[ii*samplesperpixel+offset+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 =(BYTE)max(0,min(255,(int)(cr*255))); c.rgbGreen=(BYTE)max(0,min(255,(int)(cg*255))); c.rgbBlue =(BYTE)max(0,min(255,(int)(cb*255))); SetPixelColor(xi,yi,c); #if CXIMAGE_SUPPORT_ALPHA AlphaSet(xi,yi,bits[ii*samplesperpixel+offset+3]); #endif //CXIMAGE_SUPPORT_ALPHA ii++; xi++; if (xi>=(int)width){ yi--; xi=0; } } } } } free(bits); if (tiled_image) free(tilebuf); 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; } } } catch (char *message) { strncpy(info.szLastError,message,255); if (m_tif) TIFFClose(m_tif); return false; } TIFFClose(m_tif); return true; }