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Diffstat (limited to 'tiff/tools/tiff2ps.c')
| -rwxr-xr-x | tiff/tools/tiff2ps.c | 3082 |
1 files changed, 3082 insertions, 0 deletions
diff --git a/tiff/tools/tiff2ps.c b/tiff/tools/tiff2ps.c new file mode 100755 index 0000000..7a9a816 --- /dev/null +++ b/tiff/tools/tiff2ps.c @@ -0,0 +1,3082 @@ +/* $Id: tiff2ps.c,v 1.52 2013-05-02 14:44:29 tgl Exp $ */ + +/* + * Copyright (c) 1988-1997 Sam Leffler + * Copyright (c) 1991-1997 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include "tif_config.h" + +#include <stdio.h> +#include <stdlib.h> /* for atof */ +#include <math.h> +#include <time.h> +#include <string.h> + +#ifdef HAVE_UNISTD_H +# include <unistd.h> +#endif + +#ifdef NEED_LIBPORT +# include "libport.h" +#endif + +#include "tiffio.h" + +/* + * Revision history + * 2013-Jan-21 + * Richard Nolde: Fix bug in auto rotate option code. Once a + * rotation angle was set by the auto rotate check, it was + * retained for all pages that followed instead of being + * retested for each page. + * + * 2010-Sep-17 + * Richard Nolde: Reinstate code from Feb 2009 that never got + * accepted into CVS with major modifications to handle -H and -W + * options. Replaced original PlaceImage function with several + * new functions that make support for multiple output pages + * from a single image easier to understand. Added additional + * warning messages for incompatible command line options. + * Add new command line options to specify PageOrientation + * Document Structuring Comment for landscape or portrait + * and code to determine the values from ouput width and height + * if not specified on the command line. + * Add new command line option to specify document creator + * as an alterntive to the string "tiff2ps" following model + * of patch submitted by Thomas Jarosch for specifiying a + * document title which is also supported now. + * + * 2009-Feb-11 + * Richard Nolde: Added support for rotations of 90, 180, 270 + * and auto using -r <90|180|270|auto>. Auto picks the best + * fit for the image on the specified paper size (eg portrait + * or landscape) if -h or -w is specified. Rotation is in + * degrees counterclockwise since that is how Postscript does + * it. The auto opption rotates the image 90 degrees ccw to + * produce landscape if that is a better fit than portait. + * + * Cleaned up code in TIFF2PS and broke into smaller functions + * to simplify rotations. + * + * Identified incompatible options and returned errors, eg + * -i for imagemask operator is only available for Level2 or + * Level3 Postscript in the current implmentation since there + * is a difference in the way the operands are called for Level1 + * and there is no function to provide the Level1 version. + * -H was not handled properly if -h and/or -w were specified. + * It should only clip the masked images if the scaled image + * exceeds the maxPageHeight specified with -H. + * + * New design allows for all of the following combinations: + * Conversion of TIFF to Postscript with optional rotations + * of 90, 180, 270, or auto degrees counterclockwise + * Conversion of TIFF to Postscript with entire image scaled + * to maximum of values spedified with -h or -w while + * maintaining aspect ratio. Same rotations apply. + * Conversion of TIFF to Postscript with clipping of output + * viewport to height specified with -H, producing multiple + * pages at this height and original width as needed. + * Same rotations apply. + * Conversion of TIFF to Postscript with image scaled to + * maximum specified by -h and -w and the resulting scaled + * image is presented in an output viewport clipped by -H height. + * The same rotations apply. + * + * Added maxPageWidth option using -W flag. MaxPageHeight and + * MaxPageWidth are mutually exclusive since the aspect ratio + * cannot be maintained if you set both. + * Rewrote PlaceImage to allow maxPageHeight and maxPageWidth + * options to work with values smaller or larger than the + * physical paper size and still preserve the aspect ratio. + * This is accomplished by creating multiple pages across + * as well as down if need be. + * + * 2001-Mar-21 + * I (Bruce A. Mallett) added this revision history comment ;) + * + * Fixed PS_Lvl2page() code which outputs non-ASCII85 raw + * data. Moved test for when to output a line break to + * *after* the output of a character. This just serves + * to fix an eye-nuisance where the first line of raw + * data was one character shorter than subsequent lines. + * + * Added an experimental ASCII85 encoder which can be used + * only when there is a single buffer of bytes to be encoded. + * This version is much faster at encoding a straight-line + * buffer of data because it can avoid a lot of the loop + * overhead of the byte-by-byte version. To use this version + * you need to define EXP_ASCII85ENCODER (experimental ...). + * + * Added bug fix given by Michael Schmidt to PS_Lvl2page() + * in which an end-of-data marker ('>') was not being output + * when producing non-ASCII85 encoded PostScript Level 2 + * data. + * + * Fixed PS_Lvl2colorspace() so that it no longer assumes that + * a TIFF having more than 2 planes is a CMYK. This routine + * no longer looks at the samples per pixel but instead looks + * at the "photometric" value. This change allows support of + * CMYK TIFFs. + * + * Modified the PostScript L2 imaging loop so as to test if + * the input stream is still open before attempting to do a + * flushfile on it. This was done because some RIPs close + * the stream after doing the image operation. + * + * Got rid of the realloc() being done inside a loop in the + * PSRawDataBW() routine. The code now walks through the + * byte-size array outside the loop to determine the largest + * size memory block that will be needed. + * + * Added "-m" switch to ask tiff2ps to, where possible, use the + * "imagemask" operator instead of the "image" operator. + * + * Added the "-i #" switch to allow interpolation to be disabled. + * + * Unrolled a loop or two to improve performance. + */ + +/* + * Define EXP_ASCII85ENCODER if you want to use an experimental + * version of the ASCII85 encoding routine. The advantage of + * using this routine is that tiff2ps will convert to ASCII85 + * encoding at between 3 and 4 times the speed as compared to + * using the old (non-experimental) encoder. The disadvantage + * is that you will be using a new (and unproven) encoding + * routine. So user beware, you have been warned! + */ + +#define EXP_ASCII85ENCODER + +/* + * NB: this code assumes uint32 works with printf's %l[ud]. + */ +#ifndef TRUE +#define TRUE 1 +#define FALSE 0 +#endif + +int ascii85 = FALSE; /* use ASCII85 encoding */ +int interpolate = TRUE; /* interpolate level2 image */ +int level2 = FALSE; /* generate PostScript level 2 */ +int level3 = FALSE; /* generate PostScript level 3 */ +int printAll = FALSE; /* print all images in file */ +int generateEPSF = TRUE; /* generate Encapsulated PostScript */ +int PSduplex = FALSE; /* enable duplex printing */ +int PStumble = FALSE; /* enable top edge binding */ +int PSavoiddeadzone = TRUE; /* enable avoiding printer deadzone */ +double maxPageHeight = 0; /* maximum height to select from image and print per page */ +double maxPageWidth = 0; /* maximum width to select from image and print per page */ +double splitOverlap = 0; /* amount for split pages to overlag */ +int rotation = 0; /* optional value for rotation angle */ +int auto_rotate = 0; /* rotate image for best fit on the page */ +char *filename = NULL; /* input filename */ +char *title = NULL; /* optional document title string */ +char *creator = NULL; /* optional document creator string */ +char pageOrientation[12]; /* set optional PageOrientation DSC to Landscape or Portrait */ +int useImagemask = FALSE; /* Use imagemask instead of image operator */ +uint16 res_unit = 0; /* Resolution units: 2 - inches, 3 - cm */ + +/* + * ASCII85 Encoding Support. + */ +unsigned char ascii85buf[10]; +int ascii85count; +int ascii85breaklen; + +int TIFF2PS(FILE*, TIFF*, double, double, double, double, int); +void PSpage(FILE*, TIFF*, uint32, uint32); +void PSColorContigPreamble(FILE*, uint32, uint32, int); +void PSColorSeparatePreamble(FILE*, uint32, uint32, int); +void PSDataColorContig(FILE*, TIFF*, uint32, uint32, int); +void PSDataColorSeparate(FILE*, TIFF*, uint32, uint32, int); +void PSDataPalette(FILE*, TIFF*, uint32, uint32); +void PSDataBW(FILE*, TIFF*, uint32, uint32); +void PSRawDataBW(FILE*, TIFF*, uint32, uint32); +void Ascii85Init(void); +void Ascii85Put(unsigned char code, FILE* fd); +void Ascii85Flush(FILE* fd); +void PSHead(FILE*, double, double, double, double); +void PSTail(FILE*, int); +int psStart(FILE *, int, int, int *, double *, double, double, double, + double, double, double, double, double, double, double); +int psPageSize(FILE *, int, double, double, double, double, double, double); +int psRotateImage(FILE *, int, double, double, double, double); +int psMaskImage(FILE *, TIFF *, int, int, int *, double, double, + double, double, double, double, double, double, double); +int psScaleImage(FILE *, double, int, int, double, double, double, double, + double, double); +int get_viewport (double, double, double, double, double *, double *, int); +int exportMaskedImage(FILE *, double, double, double, double, int, int, + double, double, double, int, int); + +#if defined( EXP_ASCII85ENCODER) +tsize_t Ascii85EncodeBlock( uint8 * ascii85_p, unsigned f_eod, const uint8 * raw_p, tsize_t raw_l ); +#endif + +static void usage(int); + +int +main(int argc, char* argv[]) +{ + int dirnum = -1, c, np = 0; + int centered = 0; + double bottommargin = 0; + double leftmargin = 0; + double pageWidth = 0; + double pageHeight = 0; + uint32 diroff = 0; + extern char *optarg; + extern int optind; + FILE* output = stdout; + + pageOrientation[0] = '\0'; + + while ((c = getopt(argc, argv, "b:d:h:H:W:L:i:w:l:o:O:P:C:r:t:acemxyzps1238DT")) != -1) + switch (c) { + case 'b': + bottommargin = atof(optarg); + break; + case 'c': + centered = 1; + break; + case 'C': + creator = optarg; + break; + case 'd': /* without -a, this only processes one image at this IFD */ + dirnum = atoi(optarg); + break; + case 'D': + PSduplex = TRUE; + break; + case 'i': + interpolate = atoi(optarg) ? TRUE:FALSE; + break; + case 'T': + PStumble = TRUE; + break; + case 'e': + PSavoiddeadzone = FALSE; + generateEPSF = TRUE; + break; + case 'h': + pageHeight = atof(optarg); + break; + case 'H': + maxPageHeight = atof(optarg); + break; + case 'W': + maxPageWidth = atof(optarg); + break; + case 'L': + splitOverlap = atof(optarg); + break; + case 'm': + useImagemask = TRUE; + break; + case 'o': + switch (optarg[0]) + { + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': diroff = (uint32) strtoul(optarg, NULL, 0); + break; + default: TIFFError ("-o", "Offset must be a numeric value."); + exit (1); + } + break; + case 'O': /* XXX too bad -o is already taken */ + output = fopen(optarg, "w"); + if (output == NULL) { + fprintf(stderr, + "%s: %s: Cannot open output file.\n", + argv[0], optarg); + exit(-2); + } + break; + case 'P': + switch (optarg[0]) + { + case 'l': + case 'L': strcpy (pageOrientation, "Landscape"); + break; + case 'p': + case 'P': strcpy (pageOrientation, "Portrait"); + break; + default: TIFFError ("-P", "Page orientation must be Landscape or Portrait"); + exit (-1); + } + break; + case 'l': + leftmargin = atof(optarg); + break; + case 'a': /* removed fall through to generate warning below, R Nolde 09-01-2010 */ + printAll = TRUE; + break; + case 'p': + generateEPSF = FALSE; + break; + case 'r': + if (strcmp (optarg, "auto") == 0) + { + rotation = 0; + auto_rotate = TRUE; + } + else + { + rotation = atoi(optarg); + auto_rotate = FALSE; + } + switch (rotation) + { + case 0: + case 90: + case 180: + case 270: + break; + default: + fprintf (stderr, "Rotation angle must be 90, 180, 270 (degrees ccw) or auto\n"); + exit (-1); + } + break; + case 's': + printAll = FALSE; + break; + case 't': + title = optarg; + break; + case 'w': + pageWidth = atof(optarg); + break; + case 'z': + PSavoiddeadzone = FALSE; + break; + case '1': + level2 = FALSE; + level3 = FALSE; + ascii85 = FALSE; + break; + case '2': + level2 = TRUE; + ascii85 = TRUE; /* default to yes */ + break; + case '3': + level3 = TRUE; + ascii85 = TRUE; /* default to yes */ + break; + case '8': + ascii85 = FALSE; + break; + case 'x': + res_unit = RESUNIT_CENTIMETER; + break; + case 'y': + res_unit = RESUNIT_INCH; + break; + case '?': + usage(-1); + } + + if (useImagemask == TRUE) + { + if ((level2 == FALSE) && (level3 == FALSE)) + { + TIFFError ("-m "," imagemask operator requres Postscript Level2 or Level3"); + exit (1); + } + } + + if (pageWidth && (maxPageWidth > pageWidth)) + { + TIFFError ("-W", "Max viewport width cannot exceed page width"); + exit (1); + } + + if (pageHeight && (maxPageHeight > pageHeight)) + { + TIFFError ("-H", "Max viewport height cannot exceed page height"); + exit (1); + } + + /* auto rotate requires a specified page width and height */ + if (auto_rotate == TRUE) + { + /* + if ((pageWidth == 0) || (pageHeight == 0)) + TIFFWarning ("-r auto", " requires page height and width specified with -h and -w"); + */ + if ((maxPageWidth > 0) || (maxPageHeight > 0)) + { + TIFFError ("-r auto", " is incompatible with maximum page width/height specified by -H or -W"); + exit (1); + } + } + if ((maxPageWidth > 0) && (maxPageHeight > 0)) + { + TIFFError ("-H and -W", " Use only one of -H or -W to define a viewport"); + exit (1); + } + + if ((generateEPSF == TRUE) && (printAll == TRUE)) + { + TIFFError(" -e and -a", "Warning: Cannot generate Encapsulated Postscript for multiple images"); + generateEPSF = FALSE; + } + + if ((generateEPSF == TRUE) && (PSduplex == TRUE)) + { + TIFFError(" -e and -D", "Warning: Encapsulated Postscript does not support Duplex option"); + PSduplex = FALSE; + } + + if ((generateEPSF == TRUE) && (PStumble == TRUE)) + { + TIFFError(" -e and -T", "Warning: Encapsulated Postscript does not support Top Edge Binding option"); + PStumble = FALSE; + } + + if ((generateEPSF == TRUE) && (PSavoiddeadzone == TRUE)) + PSavoiddeadzone = FALSE; + + for (; argc - optind > 0; optind++) { + TIFF* tif = TIFFOpen(filename = argv[optind], "r"); + if (tif != NULL) { + if (dirnum != -1 + && !TIFFSetDirectory(tif, (tdir_t)dirnum)) + return (-1); + else if (diroff != 0 && + !TIFFSetSubDirectory(tif, diroff)) + return (-1); + np = TIFF2PS(output, tif, pageWidth, pageHeight, + leftmargin, bottommargin, centered); + if (np < 0) + { + TIFFError("Error", "Unable to process %s", filename); + } + TIFFClose(tif); + } + } + if (np) + PSTail(output, np); + else + usage(-1); + if (output != stdout) + fclose(output); + return (0); +} + +static uint16 samplesperpixel; +static uint16 bitspersample; +static uint16 planarconfiguration; +static uint16 photometric; +static uint16 compression; +static uint16 extrasamples; +static int alpha; + +static int +checkImage(TIFF* tif) +{ + switch (photometric) { + case PHOTOMETRIC_YCBCR: + if ((compression == COMPRESSION_JPEG || compression == COMPRESSION_OJPEG) + && planarconfiguration == PLANARCONFIG_CONTIG) { + /* can rely on libjpeg to convert to RGB */ + TIFFSetField(tif, TIFFTAG_JPEGCOLORMODE, + JPEGCOLORMODE_RGB); + photometric = PHOTOMETRIC_RGB; + } else { + if (level2 || level3) + break; + TIFFError(filename, "Can not handle image with %s", + "PhotometricInterpretation=YCbCr"); + return (0); + } + /* fall thru... */ + case PHOTOMETRIC_RGB: + if (alpha && bitspersample != 8) { + TIFFError(filename, + "Can not handle %d-bit/sample RGB image with alpha", + bitspersample); + return (0); + } + /* fall thru... */ + case PHOTOMETRIC_SEPARATED: + case PHOTOMETRIC_PALETTE: + case PHOTOMETRIC_MINISBLACK: + case PHOTOMETRIC_MINISWHITE: + break; + case PHOTOMETRIC_LOGL: + case PHOTOMETRIC_LOGLUV: + if (compression != COMPRESSION_SGILOG && + compression != COMPRESSION_SGILOG24) { + TIFFError(filename, + "Can not handle %s data with compression other than SGILog", + (photometric == PHOTOMETRIC_LOGL) ? + "LogL" : "LogLuv" + ); + return (0); + } + /* rely on library to convert to RGB/greyscale */ + TIFFSetField(tif, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_8BIT); + photometric = (photometric == PHOTOMETRIC_LOGL) ? + PHOTOMETRIC_MINISBLACK : PHOTOMETRIC_RGB; + bitspersample = 8; + break; + case PHOTOMETRIC_CIELAB: + /* fall thru... */ + default: + TIFFError(filename, + "Can not handle image with PhotometricInterpretation=%d", + photometric); + return (0); + } + switch (bitspersample) { + case 1: case 2: + case 4: case 8: + case 16: + break; + default: + TIFFError(filename, "Can not handle %d-bit/sample image", + bitspersample); + return (0); + } + if (planarconfiguration == PLANARCONFIG_SEPARATE && extrasamples > 0) + TIFFWarning(filename, "Ignoring extra samples"); + return (1); +} + +#define PS_UNIT_SIZE 72.0F +#define PSUNITS(npix,res) ((npix) * (PS_UNIT_SIZE / (res))) + +static char RGBcolorimage[] = "\ +/bwproc {\n\ + rgbproc\n\ + dup length 3 idiv string 0 3 0\n\ + 5 -1 roll {\n\ + add 2 1 roll 1 sub dup 0 eq {\n\ + pop 3 idiv\n\ + 3 -1 roll\n\ + dup 4 -1 roll\n\ + dup 3 1 roll\n\ + 5 -1 roll put\n\ + 1 add 3 0\n\ + } { 2 1 roll } ifelse\n\ + } forall\n\ + pop pop pop\n\ +} def\n\ +/colorimage where {pop} {\n\ + /colorimage {pop pop /rgbproc exch def {bwproc} image} bind def\n\ +} ifelse\n\ +"; + +/* + * Adobe Photoshop requires a comment line of the form: + * + * %ImageData: <cols> <rows> <depth> <main channels> <pad channels> + * <block size> <1 for binary|2 for hex> "data start" + * + * It is claimed to be part of some future revision of the EPS spec. + */ +static void +PhotoshopBanner(FILE* fd, uint32 w, uint32 h, int bs, int nc, char* startline) +{ + fprintf(fd, "%%ImageData: %ld %ld %d %d 0 %d 2 \"", + (long) w, (long) h, bitspersample, nc, bs); + fprintf(fd, startline, nc); + fprintf(fd, "\"\n"); +} + +/* Convert pixel width and height pw, ph, to points pprw, pprh + * using image resolution and resolution units from TIFF tags. + * pw : image width in pixels + * ph : image height in pixels + * pprw : image width in PS units (72 dpi) + * pprh : image height in PS units (72 dpi) + */ +static void +setupPageState(TIFF* tif, uint32* pw, uint32* ph, double* pprw, double* pprh) +{ + float xres = 0.0F, yres = 0.0F; + + TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, pw); + TIFFGetField(tif, TIFFTAG_IMAGELENGTH, ph); + if (res_unit == 0) /* Not specified as command line option */ + if (!TIFFGetFieldDefaulted(tif, TIFFTAG_RESOLUTIONUNIT, &res_unit)) + res_unit = RESUNIT_INCH; + /* + * Calculate printable area. + */ + if (!TIFFGetField(tif, TIFFTAG_XRESOLUTION, &xres) + || fabs(xres) < 0.0000001) + xres = PS_UNIT_SIZE; + if (!TIFFGetField(tif, TIFFTAG_YRESOLUTION, &yres) + || fabs(yres) < 0.0000001) + yres = PS_UNIT_SIZE; + switch (res_unit) { + case RESUNIT_CENTIMETER: + xres *= 2.54F, yres *= 2.54F; + break; + case RESUNIT_INCH: + break; + case RESUNIT_NONE: /* Subsequent code assumes we have converted to inches! */ + res_unit = RESUNIT_INCH; + break; + default: /* Last ditch guess for unspecified RESUNIT case + * check that the resolution is not inches before scaling it. + * Moved to end of function with additional check, RJN, 08-31-2010 + * if (xres != PS_UNIT_SIZE || yres != PS_UNIT_SIZE) + * xres *= PS_UNIT_SIZE, yres *= PS_UNIT_SIZE; + */ + break; + } + /* This is a hack to deal with images that have no meaningful Resolution Size + * but may have x and/or y resolutions of 1 pixel per undefined unit. + */ + if ((xres > 1.0) && (xres != PS_UNIT_SIZE)) + *pprw = PSUNITS(*pw, xres); + else + *pprw = PSUNITS(*pw, PS_UNIT_SIZE); + if ((yres > 1.0) && (yres != PS_UNIT_SIZE)) + *pprh = PSUNITS(*ph, yres); + else + *pprh = PSUNITS(*ph, PS_UNIT_SIZE); +} + +static int +isCCITTCompression(TIFF* tif) +{ + uint16 compress; + TIFFGetField(tif, TIFFTAG_COMPRESSION, &compress); + return (compress == COMPRESSION_CCITTFAX3 || + compress == COMPRESSION_CCITTFAX4 || + compress == COMPRESSION_CCITTRLE || + compress == COMPRESSION_CCITTRLEW); +} + +static tsize_t tf_bytesperrow; +static tsize_t ps_bytesperrow; +static tsize_t tf_rowsperstrip; +static tsize_t tf_numberstrips; +static char *hex = "0123456789abcdef"; + +/* + * Pagewidth and pageheight are the output size in points, + * may refer to values specified with -h and -w, or to + * values read from the image if neither -h nor -w are used. + * Imagewidth and imageheight are image size in points. + * Ximages and Yimages are number of pages across and down. + * Only one of maxPageHeight or maxPageWidth can be used. + * These are global variables unfortunately. + */ +int get_subimage_count(double pagewidth, double pageheight, + double imagewidth, double imageheight, + int *ximages, int *yimages, + int rotation, double scale) +{ + int pages = 1; + double splitheight = 0; /* Requested Max Height in points */ + double splitwidth = 0; /* Requested Max Width in points */ + double overlap = 0; /* Repeated edge width in points */ + + splitheight = maxPageHeight * PS_UNIT_SIZE; + splitwidth = maxPageWidth * PS_UNIT_SIZE; + overlap = splitOverlap * PS_UNIT_SIZE; + pagewidth *= PS_UNIT_SIZE; + pageheight *= PS_UNIT_SIZE; + + if ((imagewidth < 1.0) || (imageheight < 1.0)) + { + TIFFError("get_subimage_count", "Invalid image width or height"); + return (0); + } + + switch (rotation) + { + case 0: + case 180: if (splitheight > 0) /* -H maxPageHeight */ + { + if (imageheight > splitheight) /* More than one vertical image segment */ + { + if (pagewidth) + *ximages = (int)ceil((scale * imagewidth) / (pagewidth - overlap)); + else + *ximages = 1; + *yimages = (int)ceil((scale * imageheight) / (splitheight - overlap)); /* Max vert pages needed */ + } + else + { + if (pagewidth) + *ximages = (int)ceil((scale * imagewidth) / (pagewidth - overlap)); /* Max horz pages needed */ + else + *ximages = 1; + *yimages = 1; /* Max vert pages needed */ + } + } + else + { + if (splitwidth > 0) /* -W maxPageWidth */ + { + if (imagewidth >splitwidth) + { + *ximages = (int)ceil((scale * imagewidth) / (splitwidth - overlap)); /* Max horz pages needed */ + if (pageheight) + *yimages = (int)ceil((scale * imageheight) / (pageheight - overlap)); /* Max vert pages needed */ + else + *yimages = 1; + } + else + { + *ximages = 1; /* Max vert pages needed */ + if (pageheight) + *yimages = (int)ceil((scale * imageheight) / (pageheight - overlap)); /* Max vert pages needed */ + else + *yimages = 1; + } + } + else + { + *ximages = 1; + *yimages = 1; + } + } + break; + case 90: + case 270: if (splitheight > 0) /* -H maxPageHeight */ + { + if (imagewidth > splitheight) /* More than one vertical image segment */ + { + *yimages = (int)ceil((scale * imagewidth) / (splitheight - overlap)); /* Max vert pages needed */ + if (pagewidth) + *ximages = (int)ceil((scale * imageheight) / (pagewidth - overlap)); /* Max horz pages needed */ + else + *ximages = 1; + } + else + { + *yimages = 1; /* Max vert pages needed */ + if (pagewidth) + *ximages = (int)ceil((scale * imageheight) / (pagewidth - overlap)); /* Max horz pages needed */ + else + *ximages = 1; + } + } + else + { + if (splitwidth > 0) /* -W maxPageWidth */ + { + if (imageheight > splitwidth) + { + if (pageheight) + *yimages = (int)ceil((scale * imagewidth) / (pageheight - overlap)); /* Max vert pages needed */ + else + *yimages = 1; + *ximages = (int)ceil((scale * imageheight) / (splitwidth - overlap)); /* Max horz pages needed */ + } + else + { + if (pageheight) + *yimages = (int)ceil((scale * imagewidth) / (pageheight - overlap)); /* Max horz pages needed */ + else + *yimages = 1; + *ximages = 1; /* Max vert pages needed */ + } + } + else + { + *ximages = 1; + *yimages = 1; + } + } + break; + default: *ximages = 1; + *yimages = 1; + } + pages = (*ximages) * (*yimages); + return (pages); + } + +/* New version of PlaceImage that handles only the translation and rotation + * for a single output page. + */ +int exportMaskedImage(FILE *fp, double pagewidth, double pageheight, + double imagewidth, double imageheight, + int row, int column, + double left_offset, double bott_offset, + double scale, int center, int rotation) + { + double xtran = 0.0; + double ytran = 0.0; + + double xscale = 1.0; + double yscale = 1.0; + + double splitheight = 0; /* Requested Max Height in points */ + double splitwidth = 0; /* Requested Max Width in points */ + double overlap = 0; /* Repeated edge width in points */ + double subimage_height = 0.0; + + splitheight = maxPageHeight * PS_UNIT_SIZE; + splitwidth = maxPageWidth * PS_UNIT_SIZE; + overlap = splitOverlap * PS_UNIT_SIZE; + xscale = scale * imagewidth; + yscale = scale * imageheight; + + if ((xscale < 0.0) || (yscale < 0.0)) + { + TIFFError("exportMaskedImage", "Invalid parameters."); + return (-1); + } + + /* If images are cropped to a vewport with -H or -W, the output pages are shifted to + * the top of each output page rather than the Postscript default lower edge. + */ + switch (rotation) + { + case 0: + case 180: if (splitheight > 0) /* -H maxPageHeight */ + { + if (splitheight < imageheight) /* More than one vertical image segments */ + { + xtran = -1.0 * column * (pagewidth - overlap); + subimage_height = imageheight - ((splitheight - overlap) * row); + ytran = pageheight - subimage_height * (pageheight / splitheight); + } + else /* Only one page in vertical direction */ + { + xtran = -1.0 * column * (pagewidth - overlap); + ytran = splitheight - imageheight; + } + } + else + { + if (splitwidth > 0) /* maxPageWidth */ + { + if (splitwidth < imagewidth) + { + xtran = -1.0 * column * splitwidth; + ytran = -1.0 * row * (pageheight - overlap); + } + else /* Only one page in horizontal direction */ + { + ytran = -1.0 * row * (pageheight - overlap); + xtran = 0; + } + } + else /* Simple case, no splitting */ + { + ytran = pageheight - imageheight; + xtran = 0; + } + } + bott_offset += ytran / (center ? 2 : 1); + left_offset += xtran / (center ? 2 : 1); + break; + case 90: + case 270: if (splitheight > 0) /* -H maxPageHeight */ + { + if (splitheight < imagewidth) /* More than one vertical image segments */ + { + xtran = -1.0 * column * (pageheight - overlap); + /* Commented code places image at bottom of page instead of top. + ytran = -1.0 * row * splitheight; + */ + if (row == 0) + ytran = -1.0 * (imagewidth - splitheight); + else + ytran = -1.0 * (imagewidth - (splitheight - overlap) * (row + 1)); + } + else /* Only one page in vertical direction */ + { + xtran = -1.0 * column * (pageheight - overlap); + ytran = splitheight - imagewidth; + } + } + else + { + if (splitwidth > 0) /* maxPageWidth */ + { + if (splitwidth < imageheight) + { + xtran = -1.0 * column * splitwidth; + ytran = -1.0 * row * (pagewidth - overlap); + } + else /* Only one page in horizontal direction */ + { + ytran = -1.0 * row * (pagewidth - overlap); + xtran = 0; + } + } + else /* Simple case, no splitting */ + { + ytran = pageheight - imageheight; + xtran = 0; /* pagewidth - imagewidth; */ + } + } + bott_offset += ytran / (center ? 2 : 1); + left_offset += xtran / (center ? 2 : 1); + break; + default: xtran = 0; + ytran = 0; + } + + switch (rotation) + { + case 0: fprintf(fp, "%f %f translate\n", left_offset, bott_offset); + fprintf(fp, "%f %f scale\n", xscale, yscale); + break; + case 180: fprintf(fp, "%f %f translate\n", left_offset, bott_offset); + fprintf(fp, "%f %f scale\n1 1 translate 180 rotate\n", xscale, yscale); + break; + case 90: fprintf(fp, "%f %f translate\n", left_offset, bott_offset); + fprintf(fp, "%f %f scale\n1 0 translate 90 rotate\n", yscale, xscale); + break; + case 270: fprintf(fp, "%f %f translate\n", left_offset, bott_offset); + fprintf(fp, "%f %f scale\n0 1 translate 270 rotate\n", yscale, xscale); + break; + default: TIFFError ("exportMaskedImage", "Unsupported rotation angle %d. No rotation", rotation); + fprintf( fp, "%f %f scale\n", xscale, yscale); + break; + } + + return (0); + } + +/* Rotate an image without scaling or clipping */ +int psRotateImage (FILE * fd, int rotation, double pswidth, double psheight, + double left_offset, double bottom_offset) + { + if ((left_offset != 0.0) || (bottom_offset != 0)) + fprintf (fd, "%f %f translate\n", left_offset, bottom_offset); + + /* Exchange width and height for 90/270 rotations */ + switch (rotation) + { + case 0: fprintf (fd, "%f %f scale\n", pswidth, psheight); + break; + case 90: fprintf (fd, "%f %f scale\n1 0 translate 90 rotate\n", psheight, pswidth); + break; + case 180: fprintf (fd, "%f %f scale\n1 1 translate 180 rotate\n", pswidth, psheight); + break; + case 270: fprintf (fd, "%f %f scale\n0 1 translate 270 rotate\n", psheight, pswidth); + break; + default: TIFFError ("psRotateImage", "Unsupported rotation %d.", rotation); + fprintf( fd, "%f %f scale\n", pswidth, psheight); + return (1); + } + return (0); + } + +/* Scale and rotate an image to a single output page. */ +int psScaleImage(FILE * fd, double scale, int rotation, int center, + double reqwidth, double reqheight, double pswidth, double psheight, + double left_offset, double bottom_offset) + { + double hcenter = 0.0, vcenter = 0.0; + + /* Adjust offsets for centering */ + if (center) + { + switch (rotation) + { + case 90: vcenter = (reqheight - pswidth * scale) / 2; + hcenter = (reqwidth - psheight * scale) / 2; + fprintf (fd, "%f %f translate\n", hcenter, vcenter); + fprintf (fd, "%f %f scale\n1 0 translate 90 rotate\n", psheight * scale, pswidth * scale); + break; + case 180: hcenter = (reqwidth - pswidth * scale) / 2; + vcenter = (reqheight - psheight * scale) / 2; + fprintf (fd, "%f %f translate\n", hcenter, vcenter); + fprintf (fd, "%f %f scale\n1 1 translate 180 rotate\n", pswidth * scale, psheight * scale); + break; + case 270: vcenter = (reqheight - pswidth * scale) / 2; + hcenter = (reqwidth - psheight * scale) / 2; + fprintf (fd, "%f %f translate\n", hcenter, vcenter); + fprintf (fd, "%f %f scale\n0 1 translate 270 rotate\n", psheight * scale, pswidth * scale); + break; + case 0: + default: hcenter = (reqwidth - pswidth * scale) / 2; + vcenter = (reqheight - psheight * scale) / 2; + fprintf (fd, "%f %f translate\n", hcenter, vcenter); + fprintf (fd, "%f %f scale\n", pswidth * scale, psheight * scale); + break; + } + } + else /* Not centered */ + { + switch (rotation) + { + case 0: fprintf (fd, "%f %f translate\n", left_offset ? left_offset : 0.0, + bottom_offset ? bottom_offset : reqheight - (psheight * scale)); + fprintf (fd, "%f %f scale\n", pswidth * scale, psheight * scale); + break; + case 90: fprintf (fd, "%f %f translate\n", left_offset ? left_offset : 0.0, + bottom_offset ? bottom_offset : reqheight - (pswidth * scale)); + fprintf (fd, "%f %f scale\n1 0 translate 90 rotate\n", psheight * scale, pswidth * scale); + break; + case 180: fprintf (fd, "%f %f translate\n", left_offset ? left_offset : 0.0, + bottom_offset ? bottom_offset : reqheight - (psheight * scale)); + fprintf (fd, "%f %f scale\n1 1 translate 180 rotate\n", pswidth * scale, psheight * scale); + break; + case 270: fprintf (fd, "%f %f translate\n", left_offset ? left_offset : 0.0, + bottom_offset ? bottom_offset : reqheight - (pswidth * scale)); + fprintf (fd, "%f %f scale\n0 1 translate 270 rotate\n", psheight * scale, pswidth * scale); + break; + default: TIFFError ("psScaleImage", "Unsupported rotation %d", rotation); + fprintf (fd, "%f %f scale\n", pswidth * scale, psheight * scale); + return (1); + } + } + + return (0); + } + +/* This controls the visible portion of the page which is displayed. + * N.B. Setting maxPageHeight no longer sets pageheight if not set explicitly + */ +int psPageSize (FILE * fd, int rotation, double pgwidth, double pgheight, + double reqwidth, double reqheight, double pswidth, double psheight) + { + double xscale = 1.0, yscale = 1.0, scale = 1.0; + double splitheight; + double splitwidth; + double new_width; + double new_height; + + splitheight = maxPageHeight * PS_UNIT_SIZE; + splitwidth = maxPageWidth * PS_UNIT_SIZE; + + switch (rotation) + { + case 0: + case 180: if ((splitheight > 0) || (splitwidth > 0)) + { + if (pgwidth != 0 || pgheight != 0) + { + xscale = reqwidth / (splitwidth ? splitwidth : pswidth); + yscale = reqheight / (splitheight ? splitheight : psheight); + scale = (xscale < yscale) ? xscale : yscale; + } + new_width = splitwidth ? splitwidth : scale * pswidth; + new_height = splitheight ? splitheight : scale * psheight; + if (strlen(pageOrientation)) + fprintf (fd, "%%%%PageOrientation: %s\n", pageOrientation); + else + fprintf (fd, "%%%%PageOrientation: %s\n", (new_width > new_height) ? "Landscape" : "Portrait"); + fprintf (fd, "%%%%PageBoundingBox: 0 0 %ld %ld\n", (long)new_width, (long)new_height); + fprintf (fd, "1 dict begin /PageSize [ %f %f ] def currentdict end setpagedevice\n", + new_width, new_height); + } + else /* No viewport defined with -H or -W */ + { + if ((pgwidth == 0) && (pgheight == 0)) /* Image not scaled */ + { + if (strlen(pageOrientation)) + fprintf (fd, "%%%%PageOrientation: %s\n", pageOrientation); + else + fprintf (fd, "%%%%PageOrientation: %s\n", (pswidth > psheight) ? "Landscape" : "Portrait"); + fprintf (fd, "%%%%PageBoundingBox: 0 0 %ld %ld\n", (long)pswidth, (long)psheight); + fprintf(fd, "1 dict begin /PageSize [ %f %f ] def currentdict end setpagedevice\n", + pswidth, psheight); + } + else /* Image scaled */ + { + if (strlen(pageOrientation)) + fprintf (fd, "%%%%PageOrientation: %s\n", pageOrientation); + else + fprintf (fd, "%%%%PageOrientation: %s\n", (reqwidth > reqheight) ? "Landscape" : "Portrait"); + fprintf (fd, "%%%%PageBoundingBox: 0 0 %ld %ld\n", (long)reqwidth, (long)reqheight); + fprintf(fd, "1 dict begin /PageSize [ %f %f ] def currentdict end setpagedevice\n", + reqwidth, reqheight); + } + } + break; + case 90: + case 270: if ((splitheight > 0) || (splitwidth > 0)) + { + if (pgwidth != 0 || pgheight != 0) + { + xscale = reqwidth / (splitwidth ? splitwidth : pswidth); + yscale = reqheight / (splitheight ? splitheight : psheight); + scale = (xscale < yscale) ? xscale : yscale; + } + new_width = splitwidth ? splitwidth : scale * psheight; + new_height = splitheight ? splitheight : scale * pswidth; + + if (strlen(pageOrientation)) + fprintf (fd, "%%%%PageOrientation: %s\n", pageOrientation); + else + fprintf (fd, "%%%%PageOrientation: %s\n", (new_width > new_height) ? "Landscape" : "Portrait"); + fprintf (fd, "%%%%PageBoundingBox: 0 0 %ld %ld\n", (long)new_width, (long)new_height); + fprintf (fd, "1 dict begin /PageSize [ %f %f ] def currentdict end setpagedevice\n", + new_width, new_height); + } + else + { + if ((pgwidth == 0) && (pgheight == 0)) /* Image not scaled */ + { + if (strlen(pageOrientation)) + fprintf (fd, "%%%%PageOrientation: %s\n", pageOrientation); + else + fprintf (fd, "%%%%PageOrientation: %s\n", (psheight > pswidth) ? "Landscape" : "Portrait"); + fprintf (fd, "%%%%PageBoundingBox: 0 0 %ld %ld\n", (long)psheight, (long)pswidth); + fprintf(fd, "1 dict begin /PageSize [ %f %f ] def currentdict end setpagedevice\n", + psheight, pswidth); + } + else /* Image scaled */ + { + if (strlen(pageOrientation)) + fprintf (fd, "%%%%PageOrientation: %s\n", pageOrientation); + else + fprintf (fd, "%%%%PageOrientation: %s\n", (reqwidth > reqheight) ? "Landscape" : "Portrait"); + fprintf (fd, "%%%%PageBoundingBox: 0 0 %ld %ld\n", (long)reqwidth, (long)reqheight); + fprintf(fd, "1 dict begin /PageSize [ %f %f ] def currentdict end setpagedevice\n", + reqwidth, reqheight); + } + } + break; + default: TIFFError ("psPageSize", "Invalid rotation %d", rotation); + return (1); + } + fputs("<<\n /Policies <<\n /PageSize 3\n >>\n>> setpagedevice\n", fd); + + return (0); + } /* end psPageSize */ + +/* Mask an image as a series of pages, each only showing a section defined + * by the maxPageHeight or maxPageWidth options. + */ +int psMaskImage(FILE *fd, TIFF *tif, int rotation, int center, + int *npages, double pixwidth, double pixheight, + double left_margin, double bottom_margin, + double pgwidth, double pgheight, + double pswidth, double psheight, double scale) + { + int i, j; + int ximages = 1, yimages = 1; + int pages = *npages; + double view_width = 0; + double view_height = 0; + + if (get_viewport (pgwidth, pgheight, pswidth, psheight, &view_width, &view_height, rotation)) + { + TIFFError ("get_viewport", "Unable to set image viewport"); + return (-1); + } + + if (get_subimage_count(pgwidth, pgheight, pswidth, psheight, + &ximages, &yimages, rotation, scale) < 1) + { + TIFFError("get_subimage_count", "Invalid image count: %d columns, %d rows", ximages, yimages); + return (-1); + } + + for (i = 0; i < yimages; i++) + { + for (j = 0; j < ximages; j++) + { + pages++; + *npages = pages; + fprintf(fd, "%%%%Page: %d %d\n", pages, pages); + + /* Write out the PageSize info for non EPS files */ + if (!generateEPSF && ( level2 || level3 )) + { + if (psPageSize(fd, rotation, pgwidth, pgheight, + view_width, view_height, pswidth, psheight)) + return (-1); + } + fprintf(fd, "gsave\n"); + fprintf(fd, "100 dict begin\n"); + if (exportMaskedImage(fd, view_width, view_height, pswidth, psheight, + i, j, left_margin, bottom_margin, + scale, center, rotation)) + { + TIFFError("exportMaskedImage", "Invalid image parameters."); + return (-1); + } + PSpage(fd, tif, pixwidth, pixheight); + fprintf(fd, "end\n"); + fprintf(fd, "grestore\n"); + fprintf(fd, "showpage\n"); + } + } + + return (pages); + } + +/* Compute scale factor and write out file header */ +int psStart(FILE *fd, int npages, int auto_rotate, int *rotation, double *scale, + double ox, double oy, double pgwidth, double pgheight, + double reqwidth, double reqheight, double pswidth, double psheight, + double left_offset, double bottom_offset) + { + double maxsource = 0.0; /* Used for auto rotations */ + double maxtarget = 0.0; + double xscale = 1.0, yscale = 1.0; + double splitheight; + double splitwidth; + double view_width = 0.0, view_height = 0.0; + double page_width = 0.0, page_height = 0.0; + + /* Splitheight and splitwidth are in inches */ + splitheight = maxPageHeight * PS_UNIT_SIZE; + splitwidth = maxPageWidth * PS_UNIT_SIZE; + + page_width = pgwidth * PS_UNIT_SIZE; + page_height = pgheight * PS_UNIT_SIZE; + + /* If user has specified a page width and height and requested the + * image to be auto-rotated to fit on that media, we match the + * longest dimension of the image to the longest dimension of the + * target media but we have to ignore auto rotate if user specified + * maxPageHeight since this makes life way too complicated. */ + if (auto_rotate) + { + if ((splitheight != 0) || (splitwidth != 0)) + { + TIFFError ("psStart", "Auto-rotate is incompatible with page splitting "); + return (1); + } + + /* Find longest edges in image and output media */ + maxsource = (pswidth >= psheight) ? pswidth : psheight; + maxtarget = (reqwidth >= reqheight) ? reqwidth : reqheight; + + if (((maxsource == pswidth) && (maxtarget != reqwidth)) || + ((maxsource == psheight) && (maxtarget != reqheight))) + { /* optimal orientaion does not match input orientation */ + *rotation = 90; + xscale = (reqwidth - left_offset)/psheight; + yscale = (reqheight - bottom_offset)/pswidth; + } + else /* optimal orientaion matches input orientation */ + { + xscale = (reqwidth - left_offset)/pswidth; + yscale = (reqheight - bottom_offset)/psheight; + } + *scale = (xscale < yscale) ? xscale : yscale; + + /* Do not scale image beyound original size */ + if (*scale > 1.0) + *scale = 1.0; + + /* Set the size of the displayed image to requested page size + * and optimal orientation. + */ + if (!npages) + PSHead(fd, reqwidth, reqheight, ox, oy); + + return (0); + } + + /* N.B. If pgwidth or pgheight are set from maxPageHeight/Width, + * we have a problem with the tests below under splitheight. + */ + + switch (*rotation) /* Auto rotate has NOT been specified */ + { + case 0: + case 180: if ((splitheight != 0) || (splitwidth != 0)) + { /* Viewport clipped to maxPageHeight or maxPageWidth */ + if ((page_width != 0) || (page_height != 0)) /* Image scaled */ + { + xscale = (reqwidth - left_offset) / (page_width ? page_width : pswidth); + yscale = (reqheight - bottom_offset) / (page_height ? page_height : psheight); + *scale = (xscale < yscale) ? xscale : yscale; + /* + if (*scale > 1.0) + *scale = 1.0; + */ + } + else /* Image clipped but not scaled */ + *scale = 1.0; + + view_width = splitwidth ? splitwidth : *scale * pswidth; + view_height = splitheight ? splitheight: *scale * psheight; + } + else /* Viewport not clipped to maxPageHeight or maxPageWidth */ + { + if ((page_width != 0) || (page_height != 0)) + { /* Image scaled */ + xscale = (reqwidth - left_offset) / pswidth; + yscale = (reqheight - bottom_offset) / psheight; + + view_width = reqwidth; + view_height = reqheight; + } + else + { /* Image not scaled */ + xscale = (pswidth - left_offset)/pswidth; + yscale = (psheight - bottom_offset)/psheight; + + view_width = pswidth; + view_height = psheight; + } + } + break; + case 90: + case 270: if ((splitheight != 0) || (splitwidth != 0)) + { /* Viewport clipped to maxPageHeight or maxPageWidth */ + if ((page_width != 0) || (page_height != 0)) /* Image scaled */ + { + xscale = (reqwidth - left_offset)/ psheight; + yscale = (reqheight - bottom_offset)/ pswidth; + *scale = (xscale < yscale) ? xscale : yscale; + /* + if (*scale > 1.0) + *scale = 1.0; + */ + } + else /* Image clipped but not scaled */ + *scale = 1.0; + view_width = splitwidth ? splitwidth : *scale * psheight; + view_height = splitheight ? splitheight : *scale * pswidth; + } + else /* Viewport not clipped to maxPageHeight or maxPageWidth */ + { + if ((page_width != 0) || (page_height != 0)) /* Image scaled */ + { + xscale = (reqwidth - left_offset) / psheight; + yscale = (reqheight - bottom_offset) / pswidth; + + view_width = reqwidth; + view_height = reqheight; + } + else + { + xscale = (pswidth - left_offset)/ psheight; + yscale = (psheight - bottom_offset)/ pswidth; + + view_width = psheight; + view_height = pswidth; + } + } + break; + default: TIFFError ("psPageSize", "Invalid rotation %d", *rotation); + return (1); + } + + if (!npages) + PSHead(fd, (page_width ? page_width : view_width), (page_height ? page_height : view_height), ox, oy); + + *scale = (xscale < yscale) ? xscale : yscale; + if (*scale > 1.0) + *scale = 1.0; + + return (0); + } + +int get_viewport (double pgwidth, double pgheight, double pswidth, double psheight, + double *view_width, double *view_height, int rotation) + { + /* Only one of maxPageHeight or maxPageWidth can be specified */ + if (maxPageHeight != 0) /* Clip the viewport to maxPageHeight on each page */ + { + *view_height = maxPageHeight * PS_UNIT_SIZE; + /* + * if (res_unit == RESUNIT_CENTIMETER) + * *view_height /= 2.54F; + */ + } + else + { + if (pgheight != 0) /* User has set PageHeight with -h flag */ + { + *view_height = pgheight * PS_UNIT_SIZE; /* Postscript size for Page Height in inches */ + /* if (res_unit == RESUNIT_CENTIMETER) + * *view_height /= 2.54F; + */ + } + else /* If no width or height are specified, use the original size from image */ + switch (rotation) + { + default: + case 0: + case 180: *view_height = psheight; + break; + case 90: + case 270: *view_height = pswidth; + break; + } + } + + if (maxPageWidth != 0) /* Clip the viewport to maxPageWidth on each page */ + { + *view_width = maxPageWidth * PS_UNIT_SIZE; + /* if (res_unit == RESUNIT_CENTIMETER) + * *view_width /= 2.54F; + */ + } + else + { + if (pgwidth != 0) /* User has set PageWidth with -w flag */ + { + *view_width = pgwidth * PS_UNIT_SIZE; /* Postscript size for Page Width in inches */ + /* if (res_unit == RESUNIT_CENTIMETER) + * *view_width /= 2.54F; + */ + } + else /* If no width or height are specified, use the original size from image */ + switch (rotation) + { + default: + case 0: + case 180: *view_width = pswidth; + break; + case 90: + case 270: *view_width = psheight; /* (*view_height / psheight) * psheight; */ + break; + } + } + + return (0); + } + +/* pgwidth and pgheight specify page width and height in inches from -h and -w flags + * lm and bm are the LeftMargin and BottomMargin in inches + * center causes the image to be centered on the page if the paper size is + * larger than the image size + * returns the sequence number of the page processed or -1 on error + */ + +int TIFF2PS(FILE* fd, TIFF* tif, double pgwidth, double pgheight, double lm, double bm, int center) + { + uint32 pixwidth = 0, pixheight = 0; /* Image width and height in pixels */ + double ox = 0.0, oy = 0.0; /* Offset from current Postscript origin */ + double pswidth, psheight; /* Original raw image width and height in points */ + double view_width, view_height; /* Viewport width and height in points */ + double scale = 1.0; + double left_offset = lm * PS_UNIT_SIZE; + double bottom_offset = bm * PS_UNIT_SIZE; + uint32 subfiletype; + uint16* sampleinfo; + static int npages = 0; + + if (!TIFFGetField(tif, TIFFTAG_XPOSITION, &ox)) + ox = 0; + if (!TIFFGetField(tif, TIFFTAG_YPOSITION, &oy)) + oy = 0; + + /* Consolidated all the tag information into one code segment, Richard Nolde */ + do { + tf_numberstrips = TIFFNumberOfStrips(tif); + TIFFGetFieldDefaulted(tif, TIFFTAG_ROWSPERSTRIP, &tf_rowsperstrip); + TIFFGetFieldDefaulted(tif, TIFFTAG_BITSPERSAMPLE, &bitspersample); + TIFFGetFieldDefaulted(tif, TIFFTAG_SAMPLESPERPIXEL, &samplesperpixel); + TIFFGetFieldDefaulted(tif, TIFFTAG_PLANARCONFIG, &planarconfiguration); + TIFFGetField(tif, TIFFTAG_COMPRESSION, &compression); + TIFFGetFieldDefaulted(tif, TIFFTAG_EXTRASAMPLES, &extrasamples, &sampleinfo); + alpha = (extrasamples == 1 && sampleinfo[0] == EXTRASAMPLE_ASSOCALPHA); + if (!TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &photometric)) + { + switch (samplesperpixel - extrasamples) + { + case 1: if (isCCITTCompression(tif)) + photometric = PHOTOMETRIC_MINISWHITE; + else + photometric = PHOTOMETRIC_MINISBLACK; + break; + case 3: photometric = PHOTOMETRIC_RGB; + break; + case 4: photometric = PHOTOMETRIC_SEPARATED; + break; + } + } + + /* Read image tags for width and height in pixels pixwidth, pixheight, + * and convert to points pswidth, psheight + */ + setupPageState(tif, &pixwidth, &pixheight, &pswidth, &psheight); + view_width = pswidth; + view_height = psheight; + + if (get_viewport (pgwidth, pgheight, pswidth, psheight, &view_width, &view_height, rotation)) + { + TIFFError("get_viewport", "Unable to set image viewport"); + return (1); + } + + /* Write the Postscript file header with Bounding Box and Page Size definitions */ + if (psStart(fd, npages, auto_rotate, &rotation, &scale, ox, oy, + pgwidth, pgheight, view_width, view_height, pswidth, psheight, + left_offset, bottom_offset)) + return (-1); + + if (checkImage(tif)) /* Aborts if unsupported image parameters */ + { + tf_bytesperrow = TIFFScanlineSize(tif); + + /* Set viewport clipping and scaling options */ + if ((maxPageHeight) || (maxPageWidth) || (pgwidth != 0) || (pgheight != 0)) + { + if ((maxPageHeight) || (maxPageWidth)) /* used -H or -W option */ + { + if (psMaskImage(fd, tif, rotation, center, &npages, pixwidth, pixheight, + left_offset, bottom_offset, pgwidth, pgheight, + pswidth, psheight, scale) < 0) + return (-1); + } + else /* N.B. Setting maxPageHeight no longer sets pgheight */ + { + if (pgwidth != 0 || pgheight != 0) + { + /* User did not specify a maxium page height or width using -H or -W flag + * but did use -h or -w flag to scale to a specific size page. + */ + npages++; + fprintf(fd, "%%%%Page: %d %d\n", npages, npages); + + if (!generateEPSF && ( level2 || level3 )) + { + /* Write out the PageSize info for non EPS files */ + if (psPageSize(fd, rotation, pgwidth, pgheight, + view_width, view_height, pswidth, psheight)) + return (-1); + } + fprintf(fd, "gsave\n"); + fprintf(fd, "100 dict begin\n"); + if (psScaleImage(fd, scale, rotation, center, view_width, view_height, + pswidth, psheight, left_offset, bottom_offset)) + return (-1); + + PSpage(fd, tif, pixwidth, pixheight); + fprintf(fd, "end\n"); + fprintf(fd, "grestore\n"); + fprintf(fd, "showpage\n"); + } + } + } + else /* Simple rotation: user did not use -H, -W, -h or -w */ + { + npages++; + fprintf(fd, "%%%%Page: %d %d\n", npages, npages); + + if (!generateEPSF && ( level2 || level3 )) + { + /* Write out the PageSize info for non EPS files */ + if (psPageSize(fd, rotation, pgwidth, pgheight, + view_width, view_height, pswidth, psheight)) + return (-1); + } + fprintf(fd, "gsave\n"); + fprintf(fd, "100 dict begin\n"); + if (psRotateImage(fd, rotation, pswidth, psheight, left_offset, bottom_offset)) + return (-1); + + PSpage(fd, tif, pixwidth, pixheight); + fprintf(fd, "end\n"); + fprintf(fd, "grestore\n"); + fprintf(fd, "showpage\n"); + } + } + if (generateEPSF) + break; + if (auto_rotate) + rotation = 0.0; + TIFFGetFieldDefaulted(tif, TIFFTAG_SUBFILETYPE, &subfiletype); + } while (((subfiletype & FILETYPE_PAGE) || printAll) && TIFFReadDirectory(tif)); + +return(npages); +} + +static char DuplexPreamble[] = "\ +%%BeginFeature: *Duplex True\n\ +systemdict begin\n\ + /languagelevel where { pop languagelevel } { 1 } ifelse\n\ + 2 ge { 1 dict dup /Duplex true put setpagedevice }\n\ + { statusdict /setduplex known { statusdict begin setduplex true end } if\n\ + } ifelse\n\ +end\n\ +%%EndFeature\n\ +"; + +static char TumblePreamble[] = "\ +%%BeginFeature: *Tumble True\n\ +systemdict begin\n\ + /languagelevel where { pop languagelevel } { 1 } ifelse\n\ + 2 ge { 1 dict dup /Tumble true put setpagedevice }\n\ + { statusdict /settumble known { statusdict begin true settumble end } if\n\ + } ifelse\n\ +end\n\ +%%EndFeature\n\ +"; + +static char AvoidDeadZonePreamble[] = "\ +gsave newpath clippath pathbbox grestore\n\ + 4 2 roll 2 copy translate\n\ + exch 3 1 roll sub 3 1 roll sub exch\n\ + currentpagedevice /PageSize get aload pop\n\ + exch 3 1 roll div 3 1 roll div abs exch abs\n\ + 2 copy gt { exch } if pop\n\ + dup 1 lt { dup scale } { pop } ifelse\n\ +"; + +void +PSHead(FILE *fd, double pagewidth, double pageheight, double xoff, double yoff) +{ + time_t t; + + t = time(0); + fprintf(fd, "%%!PS-Adobe-3.0%s\n", generateEPSF ? " EPSF-3.0" : ""); + fprintf(fd, "%%%%Creator: %s\n", creator ? creator : "tiff2ps"); + fprintf(fd, "%%%%Title: %s\n", title ? title : filename); + fprintf(fd, "%%%%CreationDate: %s", ctime(&t)); + fprintf(fd, "%%%%DocumentData: Clean7Bit\n"); + /* NB: should use PageBoundingBox for each page instead of BoundingBox * + * PageBoundingBox DSC added in PSPageSize function, R Nolde 09-01-2010 + */ + fprintf(fd, "%%%%Origin: %ld %ld\n", (long) xoff, (long) yoff); + fprintf(fd, "%%%%BoundingBox: 0 0 %ld %ld\n", + (long) ceil(pagewidth), (long) ceil(pageheight)); + + fprintf(fd, "%%%%LanguageLevel: %d\n", (level3 ? 3 : (level2 ? 2 : 1))); + if (generateEPSF == TRUE) + fprintf(fd, "%%%%Pages: 1 1\n"); + else + fprintf(fd, "%%%%Pages: (atend)\n"); + fprintf(fd, "%%%%EndComments\n"); + if (generateEPSF == FALSE) + { + fprintf(fd, "%%%%BeginSetup\n"); + if (PSduplex) + fprintf(fd, "%s", DuplexPreamble); + if (PStumble) + fprintf(fd, "%s", TumblePreamble); + if (PSavoiddeadzone && (level2 || level3)) + fprintf(fd, "%s", AvoidDeadZonePreamble); + fprintf(fd, "%%%%EndSetup\n"); + } +} + +void +PSTail(FILE *fd, int npages) +{ + fprintf(fd, "%%%%Trailer\n"); + if (generateEPSF == FALSE) + fprintf(fd, "%%%%Pages: %d\n", npages); + fprintf(fd, "%%%%EOF\n"); +} + +static int +checkcmap(TIFF* tif, int n, uint16* r, uint16* g, uint16* b) +{ + (void) tif; + while (n-- > 0) + if (*r++ >= 256 || *g++ >= 256 || *b++ >= 256) + return (16); + TIFFWarning(filename, "Assuming 8-bit colormap"); + return (8); +} + +static void +PS_Lvl2colorspace(FILE* fd, TIFF* tif) +{ + uint16 *rmap, *gmap, *bmap; + int i, num_colors; + const char * colorspace_p; + + switch ( photometric ) + { + case PHOTOMETRIC_SEPARATED: + colorspace_p = "CMYK"; + break; + + case PHOTOMETRIC_RGB: + colorspace_p = "RGB"; + break; + + default: + colorspace_p = "Gray"; + } + + /* + * Set up PostScript Level 2 colorspace according to + * section 4.8 in the PostScript refenence manual. + */ + fputs("% PostScript Level 2 only.\n", fd); + if (photometric != PHOTOMETRIC_PALETTE) { + if (photometric == PHOTOMETRIC_YCBCR) { + /* MORE CODE HERE */ + } + fprintf(fd, "/Device%s setcolorspace\n", colorspace_p ); + return; + } + + /* + * Set up an indexed/palette colorspace + */ + num_colors = (1 << bitspersample); + if (!TIFFGetField(tif, TIFFTAG_COLORMAP, &rmap, &gmap, &bmap)) { + TIFFError(filename, + "Palette image w/o \"Colormap\" tag"); + return; + } + if (checkcmap(tif, num_colors, rmap, gmap, bmap) == 16) { + /* + * Convert colormap to 8-bits values. + */ +#define CVT(x) (((x) * 255) / ((1L<<16)-1)) + for (i = 0; i < num_colors; i++) { + rmap[i] = CVT(rmap[i]); + gmap[i] = CVT(gmap[i]); + bmap[i] = CVT(bmap[i]); + } +#undef CVT + } + fprintf(fd, "[ /Indexed /DeviceRGB %d", num_colors - 1); + if (ascii85) { + Ascii85Init(); + fputs("\n<~", fd); + ascii85breaklen -= 2; + } else + fputs(" <", fd); + for (i = 0; i < num_colors; i++) { + if (ascii85) { + Ascii85Put((unsigned char)rmap[i], fd); + Ascii85Put((unsigned char)gmap[i], fd); + Ascii85Put((unsigned char)bmap[i], fd); + } else { + fputs((i % 8) ? " " : "\n ", fd); + fprintf(fd, "%02x%02x%02x", + rmap[i], gmap[i], bmap[i]); + } + } + if (ascii85) + Ascii85Flush(fd); + else + fputs(">\n", fd); + fputs("] setcolorspace\n", fd); +} + +static int +PS_Lvl2ImageDict(FILE* fd, TIFF* tif, uint32 w, uint32 h) +{ + int use_rawdata; + uint32 tile_width, tile_height; + uint16 predictor, minsamplevalue, maxsamplevalue; + int repeat_count; + char im_h[64], im_x[64], im_y[64]; + char * imageOp = "image"; + + if ( useImagemask && (bitspersample == 1) ) + imageOp = "imagemask"; + + (void)strcpy(im_x, "0"); + (void)snprintf(im_y, sizeof(im_y), "%lu", (long) h); + (void)snprintf(im_h, sizeof(im_h), "%lu", (long) h); + tile_width = w; + tile_height = h; + if (TIFFIsTiled(tif)) { + repeat_count = TIFFNumberOfTiles(tif); + TIFFGetField(tif, TIFFTAG_TILEWIDTH, &tile_width); + TIFFGetField(tif, TIFFTAG_TILELENGTH, &tile_height); + if (tile_width > w || tile_height > h || + (w % tile_width) != 0 || (h % tile_height != 0)) { + /* + * The tiles does not fit image width and height. + * Set up a clip rectangle for the image unit square. + */ + fputs("0 0 1 1 rectclip\n", fd); + } + if (tile_width < w) { + fputs("/im_x 0 def\n", fd); + (void)strcpy(im_x, "im_x neg"); + } + if (tile_height < h) { + fputs("/im_y 0 def\n", fd); + (void)snprintf(im_y, sizeof(im_y), "%lu im_y sub", (unsigned long) h); + } + } else { + repeat_count = tf_numberstrips; + tile_height = tf_rowsperstrip; + if (tile_height > h) + tile_height = h; + if (repeat_count > 1) { + fputs("/im_y 0 def\n", fd); + fprintf(fd, "/im_h %lu def\n", + (unsigned long) tile_height); + (void)strcpy(im_h, "im_h"); + (void)snprintf(im_y, sizeof(im_y), "%lu im_y sub", (unsigned long) h); + } + } + + /* + * Output start of exec block + */ + fputs("{ % exec\n", fd); + + if (repeat_count > 1) + fprintf(fd, "%d { %% repeat\n", repeat_count); + + /* + * Output filter options and image dictionary. + */ + if (ascii85) + fputs(" /im_stream currentfile /ASCII85Decode filter def\n", + fd); + fputs(" <<\n", fd); + fputs(" /ImageType 1\n", fd); + fprintf(fd, " /Width %lu\n", (unsigned long) tile_width); + /* + * Workaround for some software that may crash when last strip + * of image contains fewer number of scanlines than specified + * by the `/Height' variable. So for stripped images with multiple + * strips we will set `/Height' as `im_h', because one is + * recalculated for each strip - including the (smaller) final strip. + * For tiled images and images with only one strip `/Height' will + * contain number of scanlines in tile (or image height in case of + * one-stripped image). + */ + if (TIFFIsTiled(tif) || tf_numberstrips == 1) + fprintf(fd, " /Height %lu\n", (unsigned long) tile_height); + else + fprintf(fd, " /Height im_h\n"); + + if (planarconfiguration == PLANARCONFIG_SEPARATE && samplesperpixel > 1) + fputs(" /MultipleDataSources true\n", fd); + fprintf(fd, " /ImageMatrix [ %lu 0 0 %ld %s %s ]\n", + (unsigned long) w, - (long)h, im_x, im_y); + fprintf(fd, " /BitsPerComponent %d\n", bitspersample); + fprintf(fd, " /Interpolate %s\n", interpolate ? "true" : "false"); + + switch (samplesperpixel - extrasamples) { + case 1: + switch (photometric) { + case PHOTOMETRIC_MINISBLACK: + fputs(" /Decode [0 1]\n", fd); + break; + case PHOTOMETRIC_MINISWHITE: + switch (compression) { + case COMPRESSION_CCITTRLE: + case COMPRESSION_CCITTRLEW: + case COMPRESSION_CCITTFAX3: + case COMPRESSION_CCITTFAX4: + /* + * Manage inverting with /Blackis1 flag + * since there migth be uncompressed parts + */ + fputs(" /Decode [0 1]\n", fd); + break; + default: + /* + * ERROR... + */ + fputs(" /Decode [1 0]\n", fd); + break; + } + break; + case PHOTOMETRIC_PALETTE: + TIFFGetFieldDefaulted(tif, TIFFTAG_MINSAMPLEVALUE, + &minsamplevalue); + TIFFGetFieldDefaulted(tif, TIFFTAG_MAXSAMPLEVALUE, + &maxsamplevalue); + fprintf(fd, " /Decode [%u %u]\n", + minsamplevalue, maxsamplevalue); + break; + default: + /* + * ERROR ? + */ + fputs(" /Decode [0 1]\n", fd); + break; + } + break; + case 3: + switch (photometric) { + case PHOTOMETRIC_RGB: + fputs(" /Decode [0 1 0 1 0 1]\n", fd); + break; + case PHOTOMETRIC_MINISWHITE: + case PHOTOMETRIC_MINISBLACK: + default: + /* + * ERROR?? + */ + fputs(" /Decode [0 1 0 1 0 1]\n", fd); + break; + } + break; + case 4: + /* + * ERROR?? + */ + fputs(" /Decode [0 1 0 1 0 1 0 1]\n", fd); + break; + } + fputs(" /DataSource", fd); + if (planarconfiguration == PLANARCONFIG_SEPARATE && + samplesperpixel > 1) + fputs(" [", fd); + if (ascii85) + fputs(" im_stream", fd); + else + fputs(" currentfile /ASCIIHexDecode filter", fd); + + use_rawdata = TRUE; + switch (compression) { + case COMPRESSION_NONE: /* 1: uncompressed */ + break; + case COMPRESSION_CCITTRLE: /* 2: CCITT modified Huffman RLE */ + case COMPRESSION_CCITTRLEW: /* 32771: #1 w/ word alignment */ + case COMPRESSION_CCITTFAX3: /* 3: CCITT Group 3 fax encoding */ + case COMPRESSION_CCITTFAX4: /* 4: CCITT Group 4 fax encoding */ + fputs("\n\t<<\n", fd); + if (compression == COMPRESSION_CCITTFAX3) { + uint32 g3_options; + + fputs("\t /EndOfLine true\n", fd); + fputs("\t /EndOfBlock false\n", fd); + if (!TIFFGetField(tif, TIFFTAG_GROUP3OPTIONS, + &g3_options)) + g3_options = 0; + if (g3_options & GROUP3OPT_2DENCODING) + fprintf(fd, "\t /K %s\n", im_h); + if (g3_options & GROUP3OPT_UNCOMPRESSED) + fputs("\t /Uncompressed true\n", fd); + if (g3_options & GROUP3OPT_FILLBITS) + fputs("\t /EncodedByteAlign true\n", fd); + } + if (compression == COMPRESSION_CCITTFAX4) { + uint32 g4_options; + + fputs("\t /K -1\n", fd); + TIFFGetFieldDefaulted(tif, TIFFTAG_GROUP4OPTIONS, + &g4_options); + if (g4_options & GROUP4OPT_UNCOMPRESSED) + fputs("\t /Uncompressed true\n", fd); + } + if (!(tile_width == w && w == 1728U)) + fprintf(fd, "\t /Columns %lu\n", + (unsigned long) tile_width); + fprintf(fd, "\t /Rows %s\n", im_h); + if (compression == COMPRESSION_CCITTRLE || + compression == COMPRESSION_CCITTRLEW) { + fputs("\t /EncodedByteAlign true\n", fd); + fputs("\t /EndOfBlock false\n", fd); + } + if (photometric == PHOTOMETRIC_MINISBLACK) + fputs("\t /BlackIs1 true\n", fd); + fprintf(fd, "\t>> /CCITTFaxDecode filter"); + break; + case COMPRESSION_LZW: /* 5: Lempel-Ziv & Welch */ + TIFFGetFieldDefaulted(tif, TIFFTAG_PREDICTOR, &predictor); + if (predictor == 2) { + fputs("\n\t<<\n", fd); + fprintf(fd, "\t /Predictor %u\n", predictor); + fprintf(fd, "\t /Columns %lu\n", + (unsigned long) tile_width); + fprintf(fd, "\t /Colors %u\n", samplesperpixel); + fprintf(fd, "\t /BitsPerComponent %u\n", + bitspersample); + fputs("\t>>", fd); + } + fputs(" /LZWDecode filter", fd); + break; + case COMPRESSION_DEFLATE: /* 5: ZIP */ + case COMPRESSION_ADOBE_DEFLATE: + if ( level3 ) { + TIFFGetFieldDefaulted(tif, TIFFTAG_PREDICTOR, &predictor); + if (predictor > 1) { + fprintf(fd, "\t %% PostScript Level 3 only."); + fputs("\n\t<<\n", fd); + fprintf(fd, "\t /Predictor %u\n", predictor); + fprintf(fd, "\t /Columns %lu\n", + (unsigned long) tile_width); + fprintf(fd, "\t /Colors %u\n", samplesperpixel); + fprintf(fd, "\t /BitsPerComponent %u\n", + bitspersample); + fputs("\t>>", fd); + } + fputs(" /FlateDecode filter", fd); + } else { + use_rawdata = FALSE ; + } + break; + case COMPRESSION_PACKBITS: /* 32773: Macintosh RLE */ + fputs(" /RunLengthDecode filter", fd); + use_rawdata = TRUE; + break; + case COMPRESSION_OJPEG: /* 6: !6.0 JPEG */ + case COMPRESSION_JPEG: /* 7: %JPEG DCT compression */ +#ifdef notdef + /* + * Code not tested yet + */ + fputs(" /DCTDecode filter", fd); + use_rawdata = TRUE; +#else + use_rawdata = FALSE; +#endif + break; + case COMPRESSION_NEXT: /* 32766: NeXT 2-bit RLE */ + case COMPRESSION_THUNDERSCAN: /* 32809: ThunderScan RLE */ + case COMPRESSION_PIXARFILM: /* 32908: Pixar companded 10bit LZW */ + case COMPRESSION_JBIG: /* 34661: ISO JBIG */ + use_rawdata = FALSE; + break; + case COMPRESSION_SGILOG: /* 34676: SGI LogL or LogLuv */ + case COMPRESSION_SGILOG24: /* 34677: SGI 24-bit LogLuv */ + use_rawdata = FALSE; + break; + default: + /* + * ERROR... + */ + use_rawdata = FALSE; + break; + } + if (planarconfiguration == PLANARCONFIG_SEPARATE && + samplesperpixel > 1) { + uint16 i; + + /* + * NOTE: This code does not work yet... + */ + for (i = 1; i < samplesperpixel; i++) + fputs(" dup", fd); + fputs(" ]", fd); + } + + fprintf( fd, "\n >> %s\n", imageOp ); + if (ascii85) + fputs(" im_stream status { im_stream flushfile } if\n", fd); + if (repeat_count > 1) { + if (tile_width < w) { + fprintf(fd, " /im_x im_x %lu add def\n", + (unsigned long) tile_width); + if (tile_height < h) { + fprintf(fd, " im_x %lu ge {\n", + (unsigned long) w); + fputs(" /im_x 0 def\n", fd); + fprintf(fd, " /im_y im_y %lu add def\n", + (unsigned long) tile_height); + fputs(" } if\n", fd); + } + } + if (tile_height < h) { + if (tile_width >= w) { + fprintf(fd, " /im_y im_y %lu add def\n", + (unsigned long) tile_height); + if (!TIFFIsTiled(tif)) { + fprintf(fd, " /im_h %lu im_y sub", + (unsigned long) h); + fprintf(fd, " dup %lu gt { pop", + (unsigned long) tile_height); + fprintf(fd, " %lu } if def\n", + (unsigned long) tile_height); + } + } + } + fputs("} repeat\n", fd); + } + /* + * End of exec function + */ + fputs("}\n", fd); + + return(use_rawdata); +} + +/* Flip the byte order of buffers with 16 bit samples */ +static void +PS_FlipBytes(unsigned char* buf, tsize_t count) +{ + int i; + unsigned char temp; + + if (count <= 0 || bitspersample <= 8) { + return; + } + + count--; + + for (i = 0; i < count; i += 2) { + temp = buf[i]; + buf[i] = buf[i + 1]; + buf[i + 1] = temp; + } +} + +#define MAXLINE 36 + +int +PS_Lvl2page(FILE* fd, TIFF* tif, uint32 w, uint32 h) +{ + uint16 fillorder; + int use_rawdata, tiled_image, breaklen = MAXLINE; + uint32 chunk_no, num_chunks; + uint64 *bc; + unsigned char *buf_data, *cp; + tsize_t chunk_size, byte_count; + +#if defined( EXP_ASCII85ENCODER ) + tsize_t ascii85_l; /* Length, in bytes, of ascii85_p[] data */ + uint8 * ascii85_p = 0; /* Holds ASCII85 encoded data */ +#endif + + PS_Lvl2colorspace(fd, tif); + use_rawdata = PS_Lvl2ImageDict(fd, tif, w, h); + +/* See http://bugzilla.remotesensing.org/show_bug.cgi?id=80 */ +#ifdef ENABLE_BROKEN_BEGINENDDATA + fputs("%%BeginData:\n", fd); +#endif + fputs("exec\n", fd); + + tiled_image = TIFFIsTiled(tif); + if (tiled_image) { + num_chunks = TIFFNumberOfTiles(tif); + TIFFGetField(tif, TIFFTAG_TILEBYTECOUNTS, &bc); + } else { + num_chunks = TIFFNumberOfStrips(tif); + TIFFGetField(tif, TIFFTAG_STRIPBYTECOUNTS, &bc); + } + + if (use_rawdata) { + chunk_size = (tsize_t) bc[0]; + for (chunk_no = 1; chunk_no < num_chunks; chunk_no++) + if ((tsize_t) bc[chunk_no] > chunk_size) + chunk_size = (tsize_t) bc[chunk_no]; + } else { + if (tiled_image) + chunk_size = TIFFTileSize(tif); + else + chunk_size = TIFFStripSize(tif); + } + buf_data = (unsigned char *)_TIFFmalloc(chunk_size); + if (!buf_data) { + TIFFError(filename, "Can't alloc %lu bytes for %s.", + (unsigned long) chunk_size, tiled_image ? "tiles" : "strips"); + return(FALSE); + } + +#if defined( EXP_ASCII85ENCODER ) + if ( ascii85 ) { + /* + * Allocate a buffer to hold the ASCII85 encoded data. Note + * that it is allocated with sufficient room to hold the + * encoded data (5*chunk_size/4) plus the EOD marker (+8) + * and formatting line breaks. The line breaks are more + * than taken care of by using 6*chunk_size/4 rather than + * 5*chunk_size/4. + */ + + ascii85_p = _TIFFmalloc( (chunk_size+(chunk_size/2)) + 8 ); + + if ( !ascii85_p ) { + _TIFFfree( buf_data ); + + TIFFError( filename, "Cannot allocate ASCII85 encoding buffer." ); + return ( FALSE ); + } + } +#endif + + TIFFGetFieldDefaulted(tif, TIFFTAG_FILLORDER, &fillorder); + for (chunk_no = 0; chunk_no < num_chunks; chunk_no++) { + if (ascii85) + Ascii85Init(); + else + breaklen = MAXLINE; + if (use_rawdata) { + if (tiled_image) + byte_count = TIFFReadRawTile(tif, chunk_no, + buf_data, chunk_size); + else + byte_count = TIFFReadRawStrip(tif, chunk_no, + buf_data, chunk_size); + if (fillorder == FILLORDER_LSB2MSB) + TIFFReverseBits(buf_data, byte_count); + } else { + if (tiled_image) + byte_count = TIFFReadEncodedTile(tif, + chunk_no, buf_data, + chunk_size); + else + byte_count = TIFFReadEncodedStrip(tif, + chunk_no, buf_data, + chunk_size); + } + if (byte_count < 0) { + TIFFError(filename, "Can't read %s %d.", + tiled_image ? "tile" : "strip", chunk_no); + if (ascii85) + Ascii85Put('\0', fd); + } + /* + * for 16 bits, the two bytes must be most significant + * byte first + */ + if (bitspersample == 16 && !TIFFIsBigEndian(tif)) { + PS_FlipBytes(buf_data, byte_count); + } + /* + * For images with alpha, matte against a white background; + * i.e. Cback * (1 - Aimage) where Cback = 1. We will fill the + * lower part of the buffer with the modified values. + * + * XXX: needs better solution + */ + if (alpha) { + int adjust, i, j = 0; + int ncomps = samplesperpixel - extrasamples; + for (i = 0; i < byte_count; i+=samplesperpixel) { + adjust = 255 - buf_data[i + ncomps]; + switch (ncomps) { + case 1: + buf_data[j++] = buf_data[i] + adjust; + break; + case 2: + buf_data[j++] = buf_data[i] + adjust; + buf_data[j++] = buf_data[i+1] + adjust; + break; + case 3: + buf_data[j++] = buf_data[i] + adjust; + buf_data[j++] = buf_data[i+1] + adjust; + buf_data[j++] = buf_data[i+2] + adjust; + break; + } + } + byte_count -= j; + } + + if (ascii85) { +#if defined( EXP_ASCII85ENCODER ) + ascii85_l = Ascii85EncodeBlock(ascii85_p, 1, buf_data, byte_count ); + + if ( ascii85_l > 0 ) + fwrite( ascii85_p, ascii85_l, 1, fd ); +#else + for (cp = buf_data; byte_count > 0; byte_count--) + Ascii85Put(*cp++, fd); +#endif + } + else + { + for (cp = buf_data; byte_count > 0; byte_count--) { + putc(hex[((*cp)>>4)&0xf], fd); + putc(hex[(*cp)&0xf], fd); + cp++; + + if (--breaklen <= 0) { + putc('\n', fd); + breaklen = MAXLINE; + } + } + } + + if ( !ascii85 ) { + if ( level2 || level3 ) + putc( '>', fd ); + putc('\n', fd); + } +#if !defined( EXP_ASCII85ENCODER ) + else + Ascii85Flush(fd); +#endif + } + +#if defined( EXP_ASCII85ENCODER ) + if ( ascii85_p ) + _TIFFfree( ascii85_p ); +#endif + + _TIFFfree(buf_data); +#ifdef ENABLE_BROKEN_BEGINENDDATA + fputs("%%EndData\n", fd); +#endif + return(TRUE); +} + +void +PSpage(FILE* fd, TIFF* tif, uint32 w, uint32 h) +{ + char * imageOp = "image"; + + if ( useImagemask && (bitspersample == 1) ) + imageOp = "imagemask"; + + if ((level2 || level3) && PS_Lvl2page(fd, tif, w, h)) + return; + ps_bytesperrow = tf_bytesperrow - (extrasamples * bitspersample / 8)*w; + switch (photometric) { + case PHOTOMETRIC_RGB: + if (planarconfiguration == PLANARCONFIG_CONTIG) { + fprintf(fd, "%s", RGBcolorimage); + PSColorContigPreamble(fd, w, h, 3); + PSDataColorContig(fd, tif, w, h, 3); + } else { + PSColorSeparatePreamble(fd, w, h, 3); + PSDataColorSeparate(fd, tif, w, h, 3); + } + break; + case PHOTOMETRIC_SEPARATED: + /* XXX should emit CMYKcolorimage */ + if (planarconfiguration == PLANARCONFIG_CONTIG) { + PSColorContigPreamble(fd, w, h, 4); + PSDataColorContig(fd, tif, w, h, 4); + } else { + PSColorSeparatePreamble(fd, w, h, 4); + PSDataColorSeparate(fd, tif, w, h, 4); + } + break; + case PHOTOMETRIC_PALETTE: + fprintf(fd, "%s", RGBcolorimage); + PhotoshopBanner(fd, w, h, 1, 3, "false 3 colorimage"); + fprintf(fd, "/scanLine %ld string def\n", + (long) ps_bytesperrow * 3L); + fprintf(fd, "%lu %lu 8\n", + (unsigned long) w, (unsigned long) h); + fprintf(fd, "[%lu 0 0 -%lu 0 %lu]\n", + (unsigned long) w, (unsigned long) h, (unsigned long) h); + fprintf(fd, "{currentfile scanLine readhexstring pop} bind\n"); + fprintf(fd, "false 3 colorimage\n"); + PSDataPalette(fd, tif, w, h); + break; + case PHOTOMETRIC_MINISBLACK: + case PHOTOMETRIC_MINISWHITE: + PhotoshopBanner(fd, w, h, 1, 1, imageOp); + fprintf(fd, "/scanLine %ld string def\n", + (long) ps_bytesperrow); + fprintf(fd, "%lu %lu %d\n", + (unsigned long) w, (unsigned long) h, bitspersample); + fprintf(fd, "[%lu 0 0 -%lu 0 %lu]\n", + (unsigned long) w, (unsigned long) h, (unsigned long) h); + fprintf(fd, + "{currentfile scanLine readhexstring pop} bind\n"); + fprintf(fd, "%s\n", imageOp); + PSDataBW(fd, tif, w, h); + break; + } + putc('\n', fd); +} + +void +PSColorContigPreamble(FILE* fd, uint32 w, uint32 h, int nc) +{ + ps_bytesperrow = nc * (tf_bytesperrow / samplesperpixel); + PhotoshopBanner(fd, w, h, 1, nc, "false %d colorimage"); + fprintf(fd, "/line %ld string def\n", (long) ps_bytesperrow); + fprintf(fd, "%lu %lu %d\n", + (unsigned long) w, (unsigned long) h, bitspersample); + fprintf(fd, "[%lu 0 0 -%lu 0 %lu]\n", + (unsigned long) w, (unsigned long) h, (unsigned long) h); + fprintf(fd, "{currentfile line readhexstring pop} bind\n"); + fprintf(fd, "false %d colorimage\n", nc); +} + +void +PSColorSeparatePreamble(FILE* fd, uint32 w, uint32 h, int nc) +{ + int i; + + PhotoshopBanner(fd, w, h, ps_bytesperrow, nc, "true %d colorimage"); + for (i = 0; i < nc; i++) + fprintf(fd, "/line%d %ld string def\n", + i, (long) ps_bytesperrow); + fprintf(fd, "%lu %lu %d\n", + (unsigned long) w, (unsigned long) h, bitspersample); + fprintf(fd, "[%lu 0 0 -%lu 0 %lu] \n", + (unsigned long) w, (unsigned long) h, (unsigned long) h); + for (i = 0; i < nc; i++) + fprintf(fd, "{currentfile line%d readhexstring pop}bind\n", i); + fprintf(fd, "true %d colorimage\n", nc); +} + +#define DOBREAK(len, howmany, fd) \ + if (((len) -= (howmany)) <= 0) { \ + putc('\n', fd); \ + (len) = MAXLINE-(howmany); \ + } +#define PUTHEX(c,fd) putc(hex[((c)>>4)&0xf],fd); putc(hex[(c)&0xf],fd) + +void +PSDataColorContig(FILE* fd, TIFF* tif, uint32 w, uint32 h, int nc) +{ + uint32 row; + int breaklen = MAXLINE, es = samplesperpixel - nc; + tsize_t cc; + unsigned char *tf_buf; + unsigned char *cp, c; + + (void) w; + tf_buf = (unsigned char *) _TIFFmalloc(tf_bytesperrow); + if (tf_buf == NULL) { + TIFFError(filename, "No space for scanline buffer"); + return; + } + for (row = 0; row < h; row++) { + if (TIFFReadScanline(tif, tf_buf, row, 0) < 0) + break; + cp = tf_buf; + /* + * for 16 bits, the two bytes must be most significant + * byte first + */ + if (bitspersample == 16 && !HOST_BIGENDIAN) { + PS_FlipBytes(cp, tf_bytesperrow); + } + if (alpha) { + int adjust; + cc = 0; + for (; cc < tf_bytesperrow; cc += samplesperpixel) { + DOBREAK(breaklen, nc, fd); + /* + * For images with alpha, matte against + * a white background; i.e. + * Cback * (1 - Aimage) + * where Cback = 1. + */ + adjust = 255 - cp[nc]; + switch (nc) { + case 4: c = *cp++ + adjust; PUTHEX(c,fd); + case 3: c = *cp++ + adjust; PUTHEX(c,fd); + case 2: c = *cp++ + adjust; PUTHEX(c,fd); + case 1: c = *cp++ + adjust; PUTHEX(c,fd); + } + cp += es; + } + } else { + cc = 0; + for (; cc < tf_bytesperrow; cc += samplesperpixel) { + DOBREAK(breaklen, nc, fd); + switch (nc) { + case 4: c = *cp++; PUTHEX(c,fd); + case 3: c = *cp++; PUTHEX(c,fd); + case 2: c = *cp++; PUTHEX(c,fd); + case 1: c = *cp++; PUTHEX(c,fd); + } + cp += es; + } + } + } + _TIFFfree((char *) tf_buf); +} + +void +PSDataColorSeparate(FILE* fd, TIFF* tif, uint32 w, uint32 h, int nc) +{ + uint32 row; + int breaklen = MAXLINE; + tsize_t cc; + tsample_t s, maxs; + unsigned char *tf_buf; + unsigned char *cp, c; + + (void) w; + tf_buf = (unsigned char *) _TIFFmalloc(tf_bytesperrow); + if (tf_buf == NULL) { + TIFFError(filename, "No space for scanline buffer"); + return; + } + maxs = (samplesperpixel > nc ? nc : samplesperpixel); + for (row = 0; row < h; row++) { + for (s = 0; s < maxs; s++) { + if (TIFFReadScanline(tif, tf_buf, row, s) < 0) + break; + for (cp = tf_buf, cc = 0; cc < tf_bytesperrow; cc++) { + DOBREAK(breaklen, 1, fd); + c = *cp++; + PUTHEX(c,fd); + } + } + } + _TIFFfree((char *) tf_buf); +} + +#define PUTRGBHEX(c,fd) \ + PUTHEX(rmap[c],fd); PUTHEX(gmap[c],fd); PUTHEX(bmap[c],fd) + +void +PSDataPalette(FILE* fd, TIFF* tif, uint32 w, uint32 h) +{ + uint16 *rmap, *gmap, *bmap; + uint32 row; + int breaklen = MAXLINE, nc; + tsize_t cc; + unsigned char *tf_buf; + unsigned char *cp, c; + + (void) w; + if (!TIFFGetField(tif, TIFFTAG_COLORMAP, &rmap, &gmap, &bmap)) { + TIFFError(filename, "Palette image w/o \"Colormap\" tag"); + return; + } + switch (bitspersample) { + case 8: case 4: case 2: case 1: + break; + default: + TIFFError(filename, "Depth %d not supported", bitspersample); + return; + } + nc = 3 * (8 / bitspersample); + tf_buf = (unsigned char *) _TIFFmalloc(tf_bytesperrow); + if (tf_buf == NULL) { + TIFFError(filename, "No space for scanline buffer"); + return; + } + if (checkcmap(tif, 1<<bitspersample, rmap, gmap, bmap) == 16) { + int i; +#define CVT(x) ((unsigned short) (((x) * 255) / ((1U<<16)-1))) + for (i = (1<<bitspersample)-1; i >= 0; i--) { + rmap[i] = CVT(rmap[i]); + gmap[i] = CVT(gmap[i]); + bmap[i] = CVT(bmap[i]); + } +#undef CVT + } + for (row = 0; row < h; row++) { + if (TIFFReadScanline(tif, tf_buf, row, 0) < 0) + break; + for (cp = tf_buf, cc = 0; cc < tf_bytesperrow; cc++) { + DOBREAK(breaklen, nc, fd); + switch (bitspersample) { + case 8: + c = *cp++; PUTRGBHEX(c, fd); + break; + case 4: + c = *cp++; PUTRGBHEX(c&0xf, fd); + c >>= 4; PUTRGBHEX(c, fd); + break; + case 2: + c = *cp++; PUTRGBHEX(c&0x3, fd); + c >>= 2; PUTRGBHEX(c&0x3, fd); + c >>= 2; PUTRGBHEX(c&0x3, fd); + c >>= 2; PUTRGBHEX(c, fd); + break; + case 1: + c = *cp++; PUTRGBHEX(c&0x1, fd); + c >>= 1; PUTRGBHEX(c&0x1, fd); + c >>= 1; PUTRGBHEX(c&0x1, fd); + c >>= 1; PUTRGBHEX(c&0x1, fd); + c >>= 1; PUTRGBHEX(c&0x1, fd); + c >>= 1; PUTRGBHEX(c&0x1, fd); + c >>= 1; PUTRGBHEX(c&0x1, fd); + c >>= 1; PUTRGBHEX(c, fd); + break; + } + } + } + _TIFFfree((char *) tf_buf); +} + +void +PSDataBW(FILE* fd, TIFF* tif, uint32 w, uint32 h) +{ + int breaklen = MAXLINE; + unsigned char* tf_buf; + unsigned char* cp; + tsize_t stripsize = TIFFStripSize(tif); + tstrip_t s; + +#if defined( EXP_ASCII85ENCODER ) + tsize_t ascii85_l; /* Length, in bytes, of ascii85_p[] data */ + uint8 *ascii85_p = 0; /* Holds ASCII85 encoded data */ +#endif + + (void) w; (void) h; + tf_buf = (unsigned char *) _TIFFmalloc(stripsize); + if (tf_buf == NULL) { + TIFFError(filename, "No space for scanline buffer"); + return; + } + + // FIXME + memset(tf_buf, 0, stripsize); + +#if defined( EXP_ASCII85ENCODER ) + if ( ascii85 ) { + /* + * Allocate a buffer to hold the ASCII85 encoded data. Note + * that it is allocated with sufficient room to hold the + * encoded data (5*stripsize/4) plus the EOD marker (+8) + * and formatting line breaks. The line breaks are more + * than taken care of by using 6*stripsize/4 rather than + * 5*stripsize/4. + */ + + ascii85_p = _TIFFmalloc( (stripsize+(stripsize/2)) + 8 ); + + if ( !ascii85_p ) { + _TIFFfree( tf_buf ); + + TIFFError( filename, "Cannot allocate ASCII85 encoding buffer." ); + return; + } + } +#endif + + if (ascii85) + Ascii85Init(); + + for (s = 0; s < TIFFNumberOfStrips(tif); s++) { + tmsize_t cc = TIFFReadEncodedStrip(tif, s, tf_buf, stripsize); + if (cc < 0) { + TIFFError(filename, "Can't read strip"); + break; + } + cp = tf_buf; + if (photometric == PHOTOMETRIC_MINISWHITE) { + for (cp += cc; --cp >= tf_buf;) + *cp = ~*cp; + cp++; + } + /* + * for 16 bits, the two bytes must be most significant + * byte first + */ + if (bitspersample == 16 && !HOST_BIGENDIAN) { + PS_FlipBytes(cp, cc); + } + if (ascii85) { +#if defined( EXP_ASCII85ENCODER ) + if (alpha) { + int adjust, i; + for (i = 0; i < cc; i+=2) { + adjust = 255 - cp[i + 1]; + cp[i / 2] = cp[i] + adjust; + } + cc /= 2; + } + + ascii85_l = Ascii85EncodeBlock( ascii85_p, 1, cp, cc ); + + if ( ascii85_l > 0 ) + fwrite( ascii85_p, ascii85_l, 1, fd ); +#else + while (cc-- > 0) + Ascii85Put(*cp++, fd); +#endif /* EXP_ASCII85_ENCODER */ + } else { + unsigned char c; + + if (alpha) { + int adjust; + while (cc-- > 0) { + DOBREAK(breaklen, 1, fd); + /* + * For images with alpha, matte against + * a white background; i.e. + * Cback * (1 - Aimage) + * where Cback = 1. + */ + adjust = 255 - cp[1]; + c = *cp++ + adjust; PUTHEX(c,fd); + cp++, cc--; + } + } else { + while (cc-- > 0) { + c = *cp++; + DOBREAK(breaklen, 1, fd); + PUTHEX(c, fd); + } + } + } + } + + if ( !ascii85 ) + { + if ( level2 || level3) + fputs(">\n", fd); + } +#if !defined( EXP_ASCII85ENCODER ) + else + Ascii85Flush(fd); +#else + if ( ascii85_p ) + _TIFFfree( ascii85_p ); +#endif + + _TIFFfree(tf_buf); +} + +void +PSRawDataBW(FILE* fd, TIFF* tif, uint32 w, uint32 h) +{ + uint64 *bc; + uint32 bufsize; + int breaklen = MAXLINE; + tmsize_t cc; + uint16 fillorder; + unsigned char *tf_buf; + unsigned char *cp, c; + tstrip_t s; + +#if defined( EXP_ASCII85ENCODER ) + tsize_t ascii85_l; /* Length, in bytes, of ascii85_p[] data */ + uint8 * ascii85_p = 0; /* Holds ASCII85 encoded data */ +#endif + + (void) w; (void) h; + TIFFGetFieldDefaulted(tif, TIFFTAG_FILLORDER, &fillorder); + TIFFGetField(tif, TIFFTAG_STRIPBYTECOUNTS, &bc); + + /* + * Find largest strip: + */ + + bufsize = (uint32) bc[0]; + + for ( s = 0; ++s < (tstrip_t)tf_numberstrips; ) { + if ( bc[s] > bufsize ) + bufsize = (uint32) bc[s]; + } + + tf_buf = (unsigned char*) _TIFFmalloc(bufsize); + if (tf_buf == NULL) { + TIFFError(filename, "No space for strip buffer"); + return; + } + +#if defined( EXP_ASCII85ENCODER ) + if ( ascii85 ) { + /* + * Allocate a buffer to hold the ASCII85 encoded data. Note + * that it is allocated with sufficient room to hold the + * encoded data (5*bufsize/4) plus the EOD marker (+8) + * and formatting line breaks. The line breaks are more + * than taken care of by using 6*bufsize/4 rather than + * 5*bufsize/4. + */ + + ascii85_p = _TIFFmalloc( (bufsize+(bufsize/2)) + 8 ); + + if ( !ascii85_p ) { + _TIFFfree( tf_buf ); + + TIFFError( filename, "Cannot allocate ASCII85 encoding buffer." ); + return; + } + } +#endif + + for (s = 0; s < (tstrip_t) tf_numberstrips; s++) { + cc = TIFFReadRawStrip(tif, s, tf_buf, (tmsize_t) bc[s]); + if (cc < 0) { + TIFFError(filename, "Can't read strip"); + break; + } + if (fillorder == FILLORDER_LSB2MSB) + TIFFReverseBits(tf_buf, cc); + if (!ascii85) { + for (cp = tf_buf; cc > 0; cc--) { + DOBREAK(breaklen, 1, fd); + c = *cp++; + PUTHEX(c, fd); + } + fputs(">\n", fd); + breaklen = MAXLINE; + } else { + Ascii85Init(); +#if defined( EXP_ASCII85ENCODER ) + ascii85_l = Ascii85EncodeBlock( ascii85_p, 1, tf_buf, cc ); + + if ( ascii85_l > 0 ) + fwrite( ascii85_p, ascii85_l, 1, fd ); +#else + for (cp = tf_buf; cc > 0; cc--) + Ascii85Put(*cp++, fd); + Ascii85Flush(fd); +#endif /* EXP_ASCII85ENCODER */ + } + } + _TIFFfree((char *) tf_buf); + +#if defined( EXP_ASCII85ENCODER ) + if ( ascii85_p ) + _TIFFfree( ascii85_p ); +#endif +} + +void +Ascii85Init(void) +{ + ascii85breaklen = 2*MAXLINE; + ascii85count = 0; +} + +static char* +Ascii85Encode(unsigned char* raw) +{ + static char encoded[6]; + uint32 word; + + word = (((raw[0]<<8)+raw[1])<<16) + (raw[2]<<8) + raw[3]; + if (word != 0L) { + uint32 q; + uint16 w1; + + q = word / (85L*85*85*85); /* actually only a byte */ + encoded[0] = (char) (q + '!'); + + word -= q * (85L*85*85*85); q = word / (85L*85*85); + encoded[1] = (char) (q + '!'); + + word -= q * (85L*85*85); q = word / (85*85); + encoded[2] = (char) (q + '!'); + + w1 = (uint16) (word - q*(85L*85)); + encoded[3] = (char) ((w1 / 85) + '!'); + encoded[4] = (char) ((w1 % 85) + '!'); + encoded[5] = '\0'; + } else + encoded[0] = 'z', encoded[1] = '\0'; + return (encoded); +} + +void +Ascii85Put(unsigned char code, FILE* fd) +{ + ascii85buf[ascii85count++] = code; + if (ascii85count >= 4) { + unsigned char* p; + int n; + + for (n = ascii85count, p = ascii85buf; n >= 4; n -= 4, p += 4) { + char* cp; + for (cp = Ascii85Encode(p); *cp; cp++) { + putc(*cp, fd); + if (--ascii85breaklen == 0) { + putc('\n', fd); + ascii85breaklen = 2*MAXLINE; + } + } + } + _TIFFmemcpy(ascii85buf, p, n); + ascii85count = n; + } +} + +void +Ascii85Flush(FILE* fd) +{ + if (ascii85count > 0) { + char* res; + _TIFFmemset(&ascii85buf[ascii85count], 0, 3); + res = Ascii85Encode(ascii85buf); + fwrite(res[0] == 'z' ? "!!!!" : res, ascii85count + 1, 1, fd); + } + fputs("~>\n", fd); +} +#if defined( EXP_ASCII85ENCODER) + +#define A85BREAKCNTR ascii85breaklen +#define A85BREAKLEN (2*MAXLINE) + +/***************************************************************************** +* +* Name: Ascii85EncodeBlock( ascii85_p, f_eod, raw_p, raw_l ) +* +* Description: This routine will encode the raw data in the buffer described +* by raw_p and raw_l into ASCII85 format and store the encoding +* in the buffer given by ascii85_p. +* +* Parameters: ascii85_p - A buffer supplied by the caller which will +* contain the encoded ASCII85 data. +* f_eod - Flag: Nz means to end the encoded buffer with +* an End-Of-Data marker. +* raw_p - Pointer to the buffer of data to be encoded +* raw_l - Number of bytes in raw_p[] to be encoded +* +* Returns: (int) < 0 Error, see errno +* >= 0 Number of bytes written to ascii85_p[]. +* +* Notes: An external variable given by A85BREAKCNTR is used to +* determine when to insert newline characters into the +* encoded data. As each byte is placed into ascii85_p this +* external is decremented. If the variable is decrement to +* or past zero then a newline is inserted into ascii85_p +* and the A85BREAKCNTR is then reset to A85BREAKLEN. +* Note: for efficiency reasons the A85BREAKCNTR variable +* is not actually checked on *every* character +* placed into ascii85_p but often only for every +* 5 characters. +* +* THE CALLER IS RESPONSIBLE FOR ENSURING THAT ASCII85_P[] IS +* SUFFICIENTLY LARGE TO THE ENCODED DATA! +* You will need at least 5 * (raw_l/4) bytes plus space for +* newline characters and space for an EOD marker (if +* requested). A safe calculation is to use 6*(raw_l/4) + 8 +* to size ascii85_p. +* +*****************************************************************************/ + +tsize_t Ascii85EncodeBlock( uint8 * ascii85_p, unsigned f_eod, const uint8 * raw_p, tsize_t raw_l ) + +{ + char ascii85[5]; /* Encoded 5 tuple */ + tsize_t ascii85_l; /* Number of bytes written to ascii85_p[] */ + int rc; /* Return code */ + uint32 val32; /* Unencoded 4 tuple */ + + ascii85_l = 0; /* Nothing written yet */ + + if ( raw_p ) + { + --raw_p; /* Prepare for pre-increment fetches */ + + for ( ; raw_l > 3; raw_l -= 4 ) + { + val32 = *(++raw_p) << 24; + val32 += *(++raw_p) << 16; + val32 += *(++raw_p) << 8; + val32 += *(++raw_p); + + if ( val32 == 0 ) /* Special case */ + { + ascii85_p[ascii85_l] = 'z'; + rc = 1; + } + + else + { + ascii85[4] = (char) ((val32 % 85) + 33); + val32 /= 85; + + ascii85[3] = (char) ((val32 % 85) + 33); + val32 /= 85; + + ascii85[2] = (char) ((val32 % 85) + 33); + val32 /= 85; + + ascii85[1] = (char) ((val32 % 85) + 33); + ascii85[0] = (char) ((val32 / 85) + 33); + + _TIFFmemcpy( &ascii85_p[ascii85_l], ascii85, sizeof(ascii85) ); + rc = sizeof(ascii85); + } + + ascii85_l += rc; + + if ( (A85BREAKCNTR -= rc) <= 0 ) + { + ascii85_p[ascii85_l] = '\n'; + ++ascii85_l; + A85BREAKCNTR = A85BREAKLEN; + } + } + + /* + * Output any straggler bytes: + */ + + if ( raw_l > 0 ) + { + tsize_t len; /* Output this many bytes */ + + len = raw_l + 1; + val32 = *++raw_p << 24; /* Prime the pump */ + + if ( --raw_l > 0 ) val32 += *(++raw_p) << 16; + if ( --raw_l > 0 ) val32 += *(++raw_p) << 8; + + val32 /= 85; + + ascii85[3] = (char) ((val32 % 85) + 33); + val32 /= 85; + + ascii85[2] = (char) ((val32 % 85) + 33); + val32 /= 85; + + ascii85[1] = (char) ((val32 % 85) + 33); + ascii85[0] = (char) ((val32 / 85) + 33); + + _TIFFmemcpy( &ascii85_p[ascii85_l], ascii85, len ); + ascii85_l += len; + } + } + + /* + * If requested add an ASCII85 End Of Data marker: + */ + + if ( f_eod ) + { + ascii85_p[ascii85_l++] = '~'; + ascii85_p[ascii85_l++] = '>'; + ascii85_p[ascii85_l++] = '\n'; + } + + return ( ascii85_l ); + +} /* Ascii85EncodeBlock() */ + +#endif /* EXP_ASCII85ENCODER */ + + +char* stuff[] = { +"usage: tiff2ps [options] input.tif ...", +"where options are:", +" -1 generate PostScript Level 1 (default)", +" -2 generate PostScript Level 2", +" -3 generate PostScript Level 3", +" -8 disable use of ASCII85 encoding with PostScript Level 2/3", +" -a convert all directories in file (default is first), Not EPS", +" -b # set the bottom margin to # inches", +" -c center image (-b and -l still add to this)", +" -C name set postscript document creator name", +" -d # set initial directory to # counting from zero", +" -D enable duplex printing (two pages per sheet of paper)", +" -e generate Encapsulated PostScript (EPS) (implies -z)", +" -h # set printed page height to # inches (no default)", +" -w # set printed page width to # inches (no default)", +" -H # split image if height is more than # inches", +" -W # split image if width is more than # inches", +" -L # overLap split images by # inches", +" -i # enable/disable (Nz/0) pixel interpolation (default: enable)", +" -l # set the left margin to # inches", +" -m use \"imagemask\" operator instead of \"image\"", +" -o # convert directory at file offset # bytes", +" -O file write PostScript to file instead of standard output", +" -p generate regular (non-encapsulated) PostScript", +" -P L or P set optional PageOrientation DSC comment to Landscape or Portrait", +" -r # or auto rotate by 90, 180, 270 degrees or auto", +" -s generate PostScript for a single image", +" -t name set postscript document title. Otherwise the filename is used", +" -T print pages for top edge binding", +" -x override resolution units as centimeters", +" -y override resolution units as inches", +" -z enable printing in the deadzone (only for PostScript Level 2/3)", +NULL +}; + +static void +usage(int code) +{ + char buf[BUFSIZ]; + int i; + + setbuf(stderr, buf); + fprintf(stderr, "%s\n\n", TIFFGetVersion()); + for (i = 0; stuff[i] != NULL; i++) + fprintf(stderr, "%s\n", stuff[i]); + exit(code); +} + |