int
fax2tiffmain(char* inputfile, char* outputfile,int bitorder,int stretchit, int faxtype)
{
FILE *in;
TIFF *out = NULL;
TIFFErrorHandler whandler;
int compression = COMPRESSION_CCITTFAX3;
int fillorder = FILLORDER_LSB2MSB;
uint32 group3options = GROUP3OPT_FILLBITS|GROUP3OPT_2DENCODING;
int photometric = PHOTOMETRIC_MINISWHITE;
int mode = FAXMODE_CLASSF;
int rows;
int c;
int pn, npages;
if(stretchit)
stretch = 1;
else
stretch = 0;
/* smuggle a descriptor out of the library */
faxTIFF = TIFFClientOpen("(FakeInput)", "w", (thandle_t) -1,
DummyReadProc, DummyWriteProc,
NULL, NULL, NULL, NULL, NULL);
if (faxTIFF == NULL)
return (EXIT_FAILURE);
faxTIFF->tif_mode = O_RDONLY;
TIFFSetField(faxTIFF, TIFFTAG_IMAGEWIDTH, XSIZE);
TIFFSetField(faxTIFF, TIFFTAG_SAMPLESPERPIXEL, 1);
TIFFSetField(faxTIFF, TIFFTAG_BITSPERSAMPLE, 1);
TIFFSetField(faxTIFF, TIFFTAG_FILLORDER, FILLORDER_LSB2MSB);
TIFFSetField(faxTIFF, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
TIFFSetField(faxTIFF, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_MINISWHITE);
TIFFSetField(faxTIFF, TIFFTAG_YRESOLUTION, 196.);
TIFFSetField(faxTIFF, TIFFTAG_RESOLUTIONUNIT, RESUNIT_INCH);
/* NB: this is normally setup when a directory is read */
faxTIFF->tif_scanlinesize = TIFFScanlineSize(faxTIFF);
/* input is 2d-encoded */
/* if(faxtype == 32)
TIFFSetField(faxTIFF,TIFFTAG_GROUP3OPTIONS, GROUP3OPT_2DENCODING);
*/
/* input has 0 mean black */
/* TIFFSetField(faxTIFF,
TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_MINISBLACK);*/
/* input has lsb-to-msb fillorder */
if(bitorder == 1){
/* input has lsb-to-msb fillorder */
TIFFSetField(faxTIFF,
TIFFTAG_FILLORDER, FILLORDER_LSB2MSB);
}
else{
/*input has msb-to-lsb fillorder*/
TIFFSetField(faxTIFF,
TIFFTAG_FILLORDER, FILLORDER_MSB2LSB);
}
/* input resolution */
/* TIFFSetField(faxTIFF,
TIFFTAG_YRESOLUTION, atof(optarg));*/
/* input has 0 mean white */
/* TIFFSetField(faxTIFF,
TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_MINISWHITE);*/
/* output-related options */
/* generate 1d-encoded output */
/* group3options &= ~GROUP3OPT_2DENCODING;*/
/* generate g4-encoded output */
/* compression = COMPRESSION_CCITTFAX4;*/
/* TODO CHECK THIS OUT !!! */
/* generate "classic" g3 format */
/* mode = FAXMODE_CLASSIC;*/
/* generate Class F format */
/* mode = FAXMODE_CLASSF;*/
/* output's fillorder is msb-to-lsb */
/* fillorder = FILLORDER_MSB2LSB;*/
out = TIFFOpen(outputfile, "w");
if (out == NULL)
return EXIT_FAILURE;
/* zero pad output scanline EOLs */
/* group3options &= ~GROUP3OPT_FILLBITS;*/
/* stretch image by dup'ng scanlines */
/* stretch = 1;*/
/* undocumented -- for testing */
/* photometric = PHOTOMETRIC_MINISBLACK;*/
/* undocumented -- for testing */
/* compression = COMPRESSION_LZW;*/
faxTIFF->tif_readproc = out->tif_readproc; /* XXX */
faxTIFF->tif_writeproc = out->tif_writeproc; /* XXX */
faxTIFF->tif_seekproc = out->tif_seekproc; /* XXX */
faxTIFF->tif_closeproc = out->tif_closeproc; /* XXX */
faxTIFF->tif_sizeproc = out->tif_sizeproc; /* XXX */
faxTIFF->tif_mapproc = out->tif_mapproc; /* XXX */
faxTIFF->tif_unmapproc = out->tif_unmapproc; /* XXX */
/* npages = argc - optind;*/ /* TODO ???????*/
npages = 1;
/* NB: this must be done after directory info is setup */
if(faxtype == 4)
TIFFSetField(faxTIFF, TIFFTAG_COMPRESSION, COMPRESSION_CCITTFAX4);
else /* faxtype == 32 or 31 */
TIFFSetField(faxTIFF, TIFFTAG_COMPRESSION, COMPRESSION_CCITTFAX3);
if (faxtype == 32)
TIFFSetField(faxTIFF, TIFFTAG_GROUP3OPTIONS, GROUP3OPT_2DENCODING);
in = fopen(inputfile, "r" BINMODE);
if (in == NULL) {
fprintf(stderr,
"Can not open: %s\n", inputfile);
return 1;
}
faxTIFF->tif_fd = fileno(in);
faxTIFF->tif_clientdata = (thandle_t) faxTIFF->tif_fd;
/* TODO IS THIS SAFE ??? BERND*/
faxTIFF->tif_name = inputfile;
TIFFSetField(out, TIFFTAG_IMAGEWIDTH, XSIZE);
TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, 1);
TIFFSetField(out, TIFFTAG_COMPRESSION, compression);
TIFFSetField(out, TIFFTAG_PHOTOMETRIC, photometric);
TIFFSetField(out, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, 1);
if (compression == COMPRESSION_CCITTFAX3) {
TIFFSetField(out, TIFFTAG_GROUP3OPTIONS, group3options);
TIFFSetField(out, TIFFTAG_FAXMODE, mode);
}
if (compression == COMPRESSION_CCITTFAX3 ||
compression == COMPRESSION_CCITTFAX4)
TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, -1L);
else
TIFFSetField(out, TIFFTAG_ROWSPERSTRIP,
TIFFDefaultStripSize(out, 0));
TIFFSetField(out, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
TIFFSetField(out, TIFFTAG_FILLORDER, fillorder);
TIFFSetField(out, TIFFTAG_SOFTWARE, "kfax");
TIFFSetField(out, TIFFTAG_XRESOLUTION, 204.0);
if (!stretch) {
float yres;
TIFFGetField(faxTIFF, TIFFTAG_YRESOLUTION, &yres);
TIFFSetField(out, TIFFTAG_YRESOLUTION, yres);
} else
TIFFSetField(out, TIFFTAG_YRESOLUTION, 196.);
TIFFSetField(out, TIFFTAG_RESOLUTIONUNIT, RESUNIT_INCH);
TIFFSetField(out, TIFFTAG_PAGENUMBER, pn+1, npages);
if (!faxt2tiffverbose)
whandler = TIFFSetWarningHandler(NULL);
rows = copyFaxFile(faxTIFF, out);
fclose(in);
if (!faxt2tiffverbose)
(void) TIFFSetWarningHandler(whandler);
TIFFSetField(out, TIFFTAG_IMAGELENGTH, rows);
if (faxt2tiffverbose) {
fprintf(stderr, "%s:\n", inputfile);
fprintf(stderr, "%d rows in input\n", rows);
fprintf(stderr, "%ld total bad rows\n",
(long) badfaxlines);
fprintf(stderr, "%d max consecutive bad rows\n", badfaxrun);
}
if (compression == COMPRESSION_CCITTFAX3 &&
mode == FAXMODE_CLASSF) {
TIFFSetField(out, TIFFTAG_BADFAXLINES, badfaxlines);
TIFFSetField(out, TIFFTAG_CLEANFAXDATA, badfaxlines ?
CLEANFAXDATA_REGENERATED : CLEANFAXDATA_CLEAN);
TIFFSetField(out, TIFFTAG_CONSECUTIVEBADFAXLINES, badfaxrun);
}
TIFFWriteDirectory(out);
TIFFClose(out);
return (EXIT_SUCCESS);
}
int
main(int argc, char* argv[])
{
FILE *in;
TIFF *out = NULL;
TIFFErrorHandler whandler = NULL;
int compression_in = COMPRESSION_CCITTFAX3;
int compression_out = COMPRESSION_CCITTFAX3;
int fillorder_in = FILLORDER_LSB2MSB;
int fillorder_out = FILLORDER_LSB2MSB;
uint32 group3options_in = 0; /* 1d-encoded */
uint32 group3options_out = 0; /* 1d-encoded */
uint32 group4options_in = 0; /* compressed */
uint32 group4options_out = 0; /* compressed */
uint32 defrowsperstrip = (uint32) 0;
uint32 rowsperstrip;
int photometric_in = PHOTOMETRIC_MINISWHITE;
int photometric_out = PHOTOMETRIC_MINISWHITE;
int mode = FAXMODE_CLASSF;
int rows;
int c;
int pn, npages;
float resY = 196.0;
extern int optind;
extern char* optarg;
while ((c = getopt(argc, argv, "R:X:o:1234ABLMPUW5678abcflmprsuvwz?")) != -1)
switch (c) {
/* input-related options */
case '3': /* input is g3-encoded */
compression_in = COMPRESSION_CCITTFAX3;
break;
case '4': /* input is g4-encoded */
compression_in = COMPRESSION_CCITTFAX4;
break;
case 'U': /* input is uncompressed (g3 and g4) */
group3options_in |= GROUP3OPT_UNCOMPRESSED;
group4options_in |= GROUP4OPT_UNCOMPRESSED;
break;
case '1': /* input is 1d-encoded (g3 only) */
group3options_in &= ~GROUP3OPT_2DENCODING;
break;
case '2': /* input is 2d-encoded (g3 only) */
group3options_in |= GROUP3OPT_2DENCODING;
break;
case 'P': /* input has not-aligned EOL (g3 only) */
group3options_in &= ~GROUP3OPT_FILLBITS;
break;
case 'A': /* input has aligned EOL (g3 only) */
group3options_in |= GROUP3OPT_FILLBITS;
break;
case 'W': /* input has 0 mean white */
photometric_in = PHOTOMETRIC_MINISWHITE;
break;
case 'B': /* input has 0 mean black */
photometric_in = PHOTOMETRIC_MINISBLACK;
break;
case 'L': /* input has lsb-to-msb fillorder */
fillorder_in = FILLORDER_LSB2MSB;
break;
case 'M': /* input has msb-to-lsb fillorder */
fillorder_in = FILLORDER_MSB2LSB;
break;
case 'R': /* input resolution */
resY = (float) atof(optarg);
break;
case 'X': /* input width */
xsize = (uint32) atoi(optarg);
break;
/* output-related options */
case '7': /* generate g3-encoded output */
compression_out = COMPRESSION_CCITTFAX3;
break;
case '8': /* generate g4-encoded output */
compression_out = COMPRESSION_CCITTFAX4;
break;
case 'u': /* generate uncompressed output (g3 and g4) */
group3options_out |= GROUP3OPT_UNCOMPRESSED;
group4options_out |= GROUP4OPT_UNCOMPRESSED;
break;
case '5': /* generate 1d-encoded output (g3 only) */
group3options_out &= ~GROUP3OPT_2DENCODING;
break;
case '6': /* generate 2d-encoded output (g3 only) */
group3options_out |= GROUP3OPT_2DENCODING;
break;
case 'c': /* generate "classic" g3 format */
mode = FAXMODE_CLASSIC;
break;
case 'f': /* generate Class F format */
mode = FAXMODE_CLASSF;
break;
case 'm': /* output's fillorder is msb-to-lsb */
fillorder_out = FILLORDER_MSB2LSB;
break;
case 'l': /* output's fillorder is lsb-to-msb */
fillorder_out = FILLORDER_LSB2MSB;
break;
case 'o':
out = TIFFOpen(optarg, "w");
if (out == NULL) {
fprintf(stderr,
"%s: Can not create or open %s\n",
argv[0], optarg);
return EXIT_FAILURE;
}
break;
case 'a': /* generate EOL-aligned output (g3 only) */
group3options_out |= GROUP3OPT_FILLBITS;
break;
case 'p': /* generate not EOL-aligned output (g3 only) */
group3options_out &= ~GROUP3OPT_FILLBITS;
break;
case 'r': /* rows/strip */
defrowsperstrip = atol(optarg);
break;
case 's': /* stretch image by dup'ng scanlines */
stretch = 1;
break;
case 'w': /* undocumented -- for testing */
photometric_out = PHOTOMETRIC_MINISWHITE;
break;
case 'b': /* undocumented -- for testing */
photometric_out = PHOTOMETRIC_MINISBLACK;
break;
case 'z': /* undocumented -- for testing */
compression_out = COMPRESSION_LZW;
break;
case 'v': /* -v for info */
verbose++;
break;
case '?':
usage();
/*NOTREACHED*/
}
npages = argc - optind;
if (npages < 1)
usage();
rowbuf = _TIFFmalloc(TIFFhowmany8(xsize));
refbuf = _TIFFmalloc(TIFFhowmany8(xsize));
if (rowbuf == NULL || refbuf == NULL) {
fprintf(stderr, "%s: Not enough memory\n", argv[0]);
return (EXIT_FAILURE);
}
if (out == NULL) {
out = TIFFOpen("fax.tif", "w");
if (out == NULL) {
fprintf(stderr, "%s: Can not create fax.tif\n",
argv[0]);
return (EXIT_FAILURE);
}
}
faxTIFF = TIFFClientOpen("(FakeInput)", "w",
/* TIFFClientOpen() fails if we don't set existing value here */
TIFFClientdata(out),
TIFFGetReadProc(out), TIFFGetWriteProc(out),
TIFFGetSeekProc(out), TIFFGetCloseProc(out),
TIFFGetSizeProc(out), TIFFGetMapFileProc(out),
TIFFGetUnmapFileProc(out));
if (faxTIFF == NULL) {
fprintf(stderr, "%s: Can not create fake input file\n",
argv[0]);
return (EXIT_FAILURE);
}
TIFFSetMode(faxTIFF, O_RDONLY);
TIFFSetField(faxTIFF, TIFFTAG_IMAGEWIDTH, xsize);
TIFFSetField(faxTIFF, TIFFTAG_SAMPLESPERPIXEL, 1);
TIFFSetField(faxTIFF, TIFFTAG_BITSPERSAMPLE, 1);
TIFFSetField(faxTIFF, TIFFTAG_FILLORDER, fillorder_in);
TIFFSetField(faxTIFF, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
TIFFSetField(faxTIFF, TIFFTAG_PHOTOMETRIC, photometric_in);
TIFFSetField(faxTIFF, TIFFTAG_YRESOLUTION, resY);
TIFFSetField(faxTIFF, TIFFTAG_RESOLUTIONUNIT, RESUNIT_INCH);
/* NB: this must be done after directory info is setup */
TIFFSetField(faxTIFF, TIFFTAG_COMPRESSION, compression_in);
if (compression_in == COMPRESSION_CCITTFAX3)
TIFFSetField(faxTIFF, TIFFTAG_GROUP3OPTIONS, group3options_in);
else if (compression_in == COMPRESSION_CCITTFAX4)
TIFFSetField(faxTIFF, TIFFTAG_GROUP4OPTIONS, group4options_in);
for (pn = 0; optind < argc; pn++, optind++) {
in = fopen(argv[optind], "r" BINMODE);
if (in == NULL) {
fprintf(stderr,
"%s: %s: Can not open\n", argv[0], argv[optind]);
continue;
}
#if defined(_WIN32) && defined(USE_WIN32_FILEIO)
TIFFSetClientdata(faxTIFF, (thandle_t)_get_osfhandle(fileno(in)));
#else
TIFFSetClientdata(faxTIFF, (thandle_t)fileno(in));
#endif
TIFFSetFileName(faxTIFF, (const char*)argv[optind]);
TIFFSetField(out, TIFFTAG_IMAGEWIDTH, xsize);
TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, 1);
TIFFSetField(out, TIFFTAG_COMPRESSION, compression_out);
TIFFSetField(out, TIFFTAG_PHOTOMETRIC, photometric_out);
TIFFSetField(out, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, 1);
switch (compression_out) {
/* g3 */
case COMPRESSION_CCITTFAX3:
TIFFSetField(out, TIFFTAG_GROUP3OPTIONS,
group3options_out);
TIFFSetField(out, TIFFTAG_FAXMODE, mode);
rowsperstrip =
(defrowsperstrip)?defrowsperstrip:(uint32)-1L;
break;
/* g4 */
case COMPRESSION_CCITTFAX4:
TIFFSetField(out, TIFFTAG_GROUP4OPTIONS,
group4options_out);
TIFFSetField(out, TIFFTAG_FAXMODE, mode);
rowsperstrip =
(defrowsperstrip)?defrowsperstrip:(uint32)-1L;
break;
default:
rowsperstrip = (defrowsperstrip) ?
defrowsperstrip : TIFFDefaultStripSize(out, 0);
}
TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, rowsperstrip);
TIFFSetField(out, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
TIFFSetField(out, TIFFTAG_FILLORDER, fillorder_out);
TIFFSetField(out, TIFFTAG_SOFTWARE, "fax2tiff");
TIFFSetField(out, TIFFTAG_XRESOLUTION, 204.0);
if (!stretch) {
TIFFGetField(faxTIFF, TIFFTAG_YRESOLUTION, &resY);
TIFFSetField(out, TIFFTAG_YRESOLUTION, resY);
} else
TIFFSetField(out, TIFFTAG_YRESOLUTION, 196.);
TIFFSetField(out, TIFFTAG_RESOLUTIONUNIT, RESUNIT_INCH);
TIFFSetField(out, TIFFTAG_PAGENUMBER, pn, npages);
if (!verbose)
whandler = TIFFSetWarningHandler(NULL);
rows = copyFaxFile(faxTIFF, out);
fclose(in);
if (!verbose)
(void) TIFFSetWarningHandler(whandler);
TIFFSetField(out, TIFFTAG_IMAGELENGTH, rows);
if (verbose) {
fprintf(stderr, "%s:\n", argv[optind]);
fprintf(stderr, "%d rows in input\n", rows);
fprintf(stderr, "%ld total bad rows\n",
(long) badfaxlines);
fprintf(stderr, "%d max consecutive bad rows\n", badfaxrun);
}
if (compression_out == COMPRESSION_CCITTFAX3 &&
mode == FAXMODE_CLASSF) {
TIFFSetField(out, TIFFTAG_BADFAXLINES, badfaxlines);
TIFFSetField(out, TIFFTAG_CLEANFAXDATA, badfaxlines ?
CLEANFAXDATA_REGENERATED : CLEANFAXDATA_CLEAN);
TIFFSetField(out, TIFFTAG_CONSECUTIVEBADFAXLINES, badfaxrun);
}
TIFFWriteDirectory(out);
}
TIFFClose(out);
_TIFFfree(rowbuf);
_TIFFfree(refbuf);
return (EXIT_SUCCESS);
}
static FIBITMAP * DLL_CALLCONV
Load(FreeImageIO *io, fi_handle handle, int page, int flags, void *data) {
TIFF *faxTIFF = NULL;
FIBITMAP *dib = NULL;
FIMEMORY *memory = NULL;
//int verbose = 0;
int stretch = 0;
int rows;
float resX = 204.0;
float resY = 196.0;
uint32 xsize = G3_DEFAULT_WIDTH;
int compression_in = COMPRESSION_CCITTFAX3;
int fillorder_in = FILLORDER_LSB2MSB;
uint32 group3options_in = 0; // 1d-encoded
uint32 group4options_in = 0; // compressed
int photometric_in = PHOTOMETRIC_MINISWHITE;
if(handle==NULL) return NULL;
try {
// set default load options
compression_in = COMPRESSION_CCITTFAX3; // input is g3-encoded
group3options_in &= ~GROUP3OPT_2DENCODING; // input is 1d-encoded (g3 only)
fillorder_in = FILLORDER_MSB2LSB; // input has msb-to-lsb fillorder
/*
Original input-related fax2tiff options
while ((c = getopt(argc, argv, "R:X:o:1234ABLMPUW5678abcflmprsuvwz?")) != -1) {
switch (c) {
// input-related options
case '3': // input is g3-encoded
compression_in = COMPRESSION_CCITTFAX3;
break;
case '4': // input is g4-encoded
compression_in = COMPRESSION_CCITTFAX4;
break;
case 'U': // input is uncompressed (g3 and g4)
group3options_in |= GROUP3OPT_UNCOMPRESSED;
group4options_in |= GROUP4OPT_UNCOMPRESSED;
break;
case '1': // input is 1d-encoded (g3 only)
group3options_in &= ~GROUP3OPT_2DENCODING;
break;
case '2': // input is 2d-encoded (g3 only)
group3options_in |= GROUP3OPT_2DENCODING;
break;
case 'P': // input has not-aligned EOL (g3 only)
group3options_in &= ~GROUP3OPT_FILLBITS;
break;
case 'A': // input has aligned EOL (g3 only)
group3options_in |= GROUP3OPT_FILLBITS;
break;
case 'W': // input has 0 mean white
photometric_in = PHOTOMETRIC_MINISWHITE;
break;
case 'B': // input has 0 mean black
photometric_in = PHOTOMETRIC_MINISBLACK;
break;
case 'L': // input has lsb-to-msb fillorder
fillorder_in = FILLORDER_LSB2MSB;
break;
case 'M': // input has msb-to-lsb fillorder
fillorder_in = FILLORDER_MSB2LSB;
break;
case 'R': // input resolution
resY = (float) atof(optarg);
break;
case 'X': // input width
xsize = (uint32) atoi(optarg);
break;
// output-related options
case 's': // stretch image by dup'ng scanlines
stretch = 1;
break;
case 'v': // -v for info
verbose++;
break;
}
}
*/
// open a temporary memory buffer to save decoded scanlines
memory = FreeImage_OpenMemory();
if(!memory) throw FI_MSG_ERROR_MEMORY;
// wrap the raw fax file
faxTIFF = TIFFClientOpen("(FakeInput)", "w",
// TIFFClientOpen() fails if we don't set existing value here
NULL,
_g3ReadProc, _g3WriteProc,
_g3SeekProc, _g3CloseProc,
_g3SizeProc, _g3MapProc,
_g3UnmapProc);
if (faxTIFF == NULL) {
throw "Can not create fake input file";
}
TIFFSetMode(faxTIFF, O_RDONLY);
TIFFSetField(faxTIFF, TIFFTAG_IMAGEWIDTH, xsize);
TIFFSetField(faxTIFF, TIFFTAG_SAMPLESPERPIXEL, 1);
TIFFSetField(faxTIFF, TIFFTAG_BITSPERSAMPLE, 1);
TIFFSetField(faxTIFF, TIFFTAG_FILLORDER, fillorder_in);
TIFFSetField(faxTIFF, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
TIFFSetField(faxTIFF, TIFFTAG_PHOTOMETRIC, photometric_in);
TIFFSetField(faxTIFF, TIFFTAG_YRESOLUTION, resY);
TIFFSetField(faxTIFF, TIFFTAG_RESOLUTIONUNIT, RESUNIT_INCH);
// NB: this must be done after directory info is setup
TIFFSetField(faxTIFF, TIFFTAG_COMPRESSION, compression_in);
if (compression_in == COMPRESSION_CCITTFAX3)
TIFFSetField(faxTIFF, TIFFTAG_GROUP3OPTIONS, group3options_in);
else if (compression_in == COMPRESSION_CCITTFAX4)
TIFFSetField(faxTIFF, TIFFTAG_GROUP4OPTIONS, group4options_in);
resX = 204;
if (!stretch) {
TIFFGetField(faxTIFF, TIFFTAG_YRESOLUTION, &resY);
} else {
resY = 196;
}
// decode the raw fax data
rows = copyFaxFile(io, handle, faxTIFF, xsize, stretch, memory);
if(rows <= 0) throw "Error when decoding raw fax file : check the decoder options";
// allocate the output dib
dib = FreeImage_Allocate(xsize, rows, 1);
unsigned pitch = FreeImage_GetPitch(dib);
uint32 linesize = TIFFhowmany8(xsize);
// fill the bitmap structure ...
// ... palette
RGBQUAD *pal = FreeImage_GetPalette(dib);
if(photometric_in == PHOTOMETRIC_MINISWHITE) {
pal[0].rgbRed = pal[0].rgbGreen = pal[0].rgbBlue = 255;
pal[1].rgbRed = pal[1].rgbGreen = pal[1].rgbBlue = 0;
} else {
pal[0].rgbRed = pal[0].rgbGreen = pal[0].rgbBlue = 0;
pal[1].rgbRed = pal[1].rgbGreen = pal[1].rgbBlue = 255;
}
// ... resolution
FreeImage_SetDotsPerMeterX(dib, (unsigned)(resX/0.0254000 + 0.5));
FreeImage_SetDotsPerMeterY(dib, (unsigned)(resY/0.0254000 + 0.5));
// read the decoded scanline and fill the bitmap data
FreeImage_SeekMemory(memory, 0, SEEK_SET);
BYTE *bits = FreeImage_GetScanLine(dib, rows - 1);
for(int k = 0; k < rows; k++) {
FreeImage_ReadMemory(bits, linesize, 1, memory);
bits -= pitch;
}
// free the TIFF wrapper
TIFFClose(faxTIFF);
// free the memory buffer
FreeImage_CloseMemory(memory);
} catch(const char *message) {
if(memory) FreeImage_CloseMemory(memory);
if(faxTIFF) TIFFClose(faxTIFF);
if(dib) FreeImage_Unload(dib);
FreeImage_OutputMessageProc(s_format_id, message);
return NULL;
}
return dib;
}
