/* * $Id: t2p.c,v 1.4 1996/06/12 14:33:06 alberto Exp alberto $ * * TIFF to PostScript level 2 translator. * * This program is a modified version of Sam Leffler's translator. * It generates "good" PostScript level 2 by default, and it is * known to work at least for TIFF bitmaps stored in a single strip * with G4 compression. In general, this provides the best compression * scheme both for TIFF and for PostScript documents generated from * scanning monochrome text pages. * Some quarkyness in the different implementation of PostScript's * CCITT G4 filter and TIFF's have prevented me from making this a * general converter, but it works on my data as it is... * * * Standard disclamer: * * This program is part of the NASA Astrophysics Data System * article service data reduction/conversion software. * * Copyright (C): 1994, 1995 Smithsonian Astrophysical Observatory. * You may do anything you like with this file except remove * this copyright. The Smithsonian Astrophysical Observatory * makes no representations about the suitability of this * software for any purpose. It is provided "as is" without * express or implied warranty. It may not be incorporated into * commercial products without permission of the Smithsonian * Astrophysical Observatory. * * Written by Alberto Accomazzi * http://cfa-www.harvard.edu/~alberto/ * * * $Log: t2p.c,v $ * Revision 1.4 1996/06/12 14:33:06 alberto * TIFF -> PostScript (level2) translator. * Not guaranteed to work with every kind of TIFF file. * * */ /* * Part of this code is: * * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994 Sam Leffler * Copyright (c) 1991, 1992, 1993, 1994 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 #include /* for atof */ #include #include #include #include #include "tiffio.h" /* * NB: this code assumes uint32 works with printf's %l[ud]. */ /* letter page sizes (plus 0.5in margin for oversized scans) * used to figure out image resolution */ #define PGSIZEX 8.5 #define PGSIZEY 11.0 #define MARGIN 0.25 #define PSDPI 72 #define TRUE 1 #define FALSE 0 #define max(x,y) (((x)>(y))?(x):(y)) #define min(x,y) (((x)<(y))?(x):(y)) int ascii85 = TRUE; /* use ASCII85 encoding */ int level2 = TRUE; /* generate PostScript level 2 */ int printAll = TRUE; /* print all images in file */ int generateEPSF = FALSE; /* generate Encapsulated PostScript */ int PSduplex = FALSE; /* enable duplex printing */ int PStumble = FALSE; /* enable top edge binding */ int ppages = 0; /* number of pages in paper */ char *filename; /* input filename */ int TIFF2PS(FILE*, TIFF*, double, double); 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*, TIFF*, uint32, uint32, double, double, double, double); void PSTail(FILE*, int); void setupPageState(TIFF*, double, double, uint32*, uint32*, double*, double*, double*, double*, int*); void PhotoshopBanner(FILE*, uint32, uint32, int, int, const char*); static void usage(int); int main(int argc, char* argv[]) { int dirnum = -1, c, np = 0; double pageWidth = 0; double pageHeight = 0; uint32 diroff = 0; extern char *optarg; extern int optind; FILE* output = stdout; while ((c = getopt(argc, argv, "h:w:d:o:O:aeps128DT")) != -1) switch (c) { case 'd': dirnum = atoi(optarg); break; case 'D': PSduplex = TRUE; break; case 'T': PStumble = TRUE; break; case 'e': generateEPSF = TRUE; break; case 'h': pageHeight = atof(optarg); break; case 'o': diroff = (uint32) strtol(optarg, NULL, 0); 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 'a': printAll = TRUE; /* fall thru... */ case 'p': generateEPSF = FALSE; break; case 's': printAll = FALSE; break; case 'w': pageWidth = atof(optarg); break; case '1': level2 = FALSE; ascii85 = FALSE; break; case '2': level2 = TRUE; ascii85 = TRUE; /* default to yes */ break; case '8': ascii85 = FALSE; break; case '?': usage(-1); } /* make a (not so wild) guess about document's number of pages */ ppages = argc - optind; if (ppages == 1) generateEPSF = TRUE; for (; argc - optind > 0; optind++) { TIFF* tif = TIFFOpen(filename = argv[optind], "r"); if (tif != NULL) { np = TIFF2PS(output, tif, pageWidth, pageHeight); 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 (bitspersample) { case 1: case 2: case 4: case 8: break; default: TIFFError(filename, "Can not handle %d-bit/sample image", bitspersample); return (0); } switch (photometric) { 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; default: TIFFError(filename, "Can not handle image with PhotometricInterpretation=%d", photometric); return (0); } if (planarconfiguration == PLANARCONFIG_SEPARATE && extrasamples > 0) TIFFWarning(filename, "Ignoring extra samples"); return (1); } #define PS_UNIT_SIZE 72.0 #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:
* <1 for binary|2 for hex> "data start" * * It is claimed to be part of some future revision of the EPS spec. */ void PhotoshopBanner(FILE* fd, uint32 w, uint32 h, int bs, int nc, const char* startline) { fprintf(fd, "%%ImageData: %ld %ld %d %d 0 %d 2 \"", w, h, bitspersample, nc, bs); fprintf(fd, startline, nc); fprintf(fd, "\"\n"); } void setupPageState(TIFF* tif, double pw, double ph, uint32 *w, uint32 *h, double *sx, double *sy, double *tx, double *ty, int *pageno) { int xres, yres; double res; char *title; if (TIFFGetField(tif, TIFFTAG_DOCUMENTNAME, &title)) { /* find out page number; * assumption: title looks like: * "ApJ, v287, p601" */ char *p; p = title + strlen(title) - 1; while (isdigit(*p)) p--; *pageno = strtol(++p, NULL, 10); *pageno = max(*pageno,0); } else *pageno = 0; TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, w); TIFFGetField(tif, TIFFTAG_IMAGELENGTH, h); if (! pw) pw = PGSIZEX; if (! ph) ph = PGSIZEY; /* calculate resolution (assume it's a multiple of 25 dpi) */ for (xres = 100; ((double)(*w)/(double)xres) > pw + MARGIN; xres += 25) {} for (yres = 100; ((double)(*h)/(double)yres) > ph; yres += 25) {} res = max(xres,yres); *sx = *sy = (double)PSDPI / res; *tx = (pw - (double)(*w) / res) * PSDPI / 2.0; *ty = (ph - (double)(*h) / res) * PSDPI / 2.0; *tx = max(*tx,0.0); *ty = max(*ty,0.0); } static tsize_t tf_bytesperrow; static tsize_t ps_bytesperrow; static tsize_t tf_rowsperstrip; static tsize_t tf_numberstrips; static const char *hex = "0123456789abcdef"; /* returns the sequence number of the page processed */ int TIFF2PS(FILE* fd, TIFF* tif, double pw, double ph) { uint32 w, h; int p; double sx, sy, tx, ty; uint32 subfiletype; uint16* sampleinfo; static int npages = 0; do { tf_numberstrips = TIFFNumberOfStrips(tif); TIFFGetField(tif, TIFFTAG_ROWSPERSTRIP, &tf_rowsperstrip); setupPageState(tif, pw, ph, &w, &h, &sx, &sy, &tx, &ty, &p); if (!npages) PSHead(fd, tif, w, h, sx, sy, tx, ty); tf_bytesperrow = TIFFScanlineSize(tif); TIFFGetFieldDefaulted(tif, TIFFTAG_BITSPERSAMPLE, &bitspersample); TIFFGetFieldDefaulted(tif, TIFFTAG_SAMPLESPERPIXEL, &samplesperpixel); TIFFGetField(tif, TIFFTAG_PLANARCONFIG, &planarconfiguration); TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &photometric); TIFFGetField(tif, TIFFTAG_COMPRESSION, &compression); TIFFGetFieldDefaulted(tif, TIFFTAG_EXTRASAMPLES, &extrasamples, &sampleinfo); alpha = (extrasamples == 1 && sampleinfo[0] == EXTRASAMPLE_ASSOCALPHA); if (checkImage(tif)) { npages++; fprintf(fd, "%%%%Page: %d %d\n", p, npages); fprintf(fd, "gsave\n"); fprintf(fd, "100 dict begin\n"); fprintf(fd, "%f %f translate\n", tx, ty); fprintf(fd, "%f %f scale\n", sx*w, sy*h); PSpage(fd, tif, w, h); fprintf(fd, "end\n"); fprintf(fd, "grestore\n"); fprintf(fd, "showpage\n"); } TIFFGetFieldDefaulted(tif, TIFFTAG_SUBFILETYPE, &subfiletype); } while (((subfiletype & FILETYPE_PAGE) || printAll) && TIFFReadDirectory(tif)); return(npages); } static char PSErrorHandler[] = "\ /handleioerror {\n\ /buff 80 string def\n\ $error /errorname get buff cvs /ioerror eq {\n\ $error /newerror false put\n\ { currentfile buff readline not { exit } if\n\ (%%EndData) eq {\n\ (Warning: Image Data stream seems to be Corrupted) = exit } if\n\ } loop\n\ clear\n\ } { stop } ifelse\n\ } bind def\n\ "; 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 settumble true end } if\n\ } ifelse\n\ end\n\ %%EndFeature\n\ "; void PSHead(FILE *fd, TIFF *tif, uint32 w, uint32 h, double scalex, double scaley, double offx, double offy) { double ox, oy; time_t t; char *title, ntitle[BUFSIZ]; t = time(0); if (!TIFFGetField(tif, TIFFTAG_DOCUMENTNAME, &title)) title = filename; strcpy(ntitle, title); if (ppages > 1) { /* come up with better title if more than one page returned * assumption: title looks like: * "ApJ, v287, p601" */ int n; char pp[20], *p; p = ntitle + strlen(ntitle) - 1; while (isdigit(*p)) p--; n = strtol(++p, NULL, 10); sprintf(pp, "-%d", n+ppages-1); strcat(ntitle, pp); } if (!TIFFGetField(tif, TIFFTAG_XPOSITION, &ox)) ox = 0; if (!TIFFGetField(tif, TIFFTAG_YPOSITION, &oy)) oy = 0; fprintf(fd, "%%!PS-Adobe-3.0%s\n", generateEPSF ? " EPSF-3.0" : ""); fprintf(fd, "%%%%Creator: NASA Astrophysics Data System\n"); fprintf(fd, "%%%%Title: %s\n", ntitle); fprintf(fd, "%%%%CreationDate: %s", ctime(&t)); fprintf(fd, "%%%%Origin: %ld %ld\n", (long) ox, (long) oy); fprintf(fd, "%%%%Orientation: Portrait\n"); fprintf(fd, "%%%%DocumentPaperSizes: Letter\n"); fprintf(fd, "%%%%LanguageLevel: %s\n", (level2) ? "2" : "1"); if (generateEPSF) fprintf(fd, "%%%%BoundingBox: %ld %ld %ld %ld\n", (long) offx, (long) offy, (long) ceil(scalex*w+offx), (long) ceil(scaley*h+offy)); else fprintf(fd, "%%%%PageBoundingBox: %ld %ld %ld %ld\n", (long) offx, (long) offy, (long) ceil(scalex*w+offx), (long) ceil(scaley*h+offy)); fprintf(fd, "%%%%Pages: %d\n", ppages); fprintf(fd, "%%%%EndComments\n"); fprintf(fd, "%%%%BeginProlog\n"); fprintf(fd, "%%%%BeginProcSet: ioerror handler\n"); fprintf(fd, "%s", PSErrorHandler); fprintf(fd, "%%%%EndProcSet\n"); fprintf(fd, "%%%%EndProlog\n"); if (generateEPSF) return; if (!PSduplex && !PStumble) return; fprintf(fd, "%%%%BeginSetup\n"); if (PSduplex) fprintf(fd, "%s", DuplexPreamble); if (PStumble) fprintf(fd, "%s", TumblePreamble); fprintf(fd, "%%%%EndSetup\n"); } void PSTail(FILE *fd, int npages) { fprintf(fd, "%%%%Trailer\n%%%%EOF\n"); } static int emitPSLevel2FilterFunction(FILE* fd, TIFF* tif, uint32 w, uint32 h) { uint32 group3opts; int K; #define P(a,b) (((a)<<4)|((b)&0xf)) switch (P(compression, photometric)) { case P(COMPRESSION_CCITTRLE, PHOTOMETRIC_MINISBLACK): case P(COMPRESSION_CCITTRLE, PHOTOMETRIC_MINISWHITE): K = 0; break; case P(COMPRESSION_CCITTFAX3, PHOTOMETRIC_MINISBLACK): case P(COMPRESSION_CCITTFAX3, PHOTOMETRIC_MINISWHITE): TIFFGetField(tif, TIFFTAG_GROUP3OPTIONS, &group3opts); K = group3opts&GROUP3OPT_2DENCODING; break; case P(COMPRESSION_CCITTFAX4, PHOTOMETRIC_MINISBLACK): case P(COMPRESSION_CCITTFAX4, PHOTOMETRIC_MINISWHITE): K = -1; break; case P(COMPRESSION_LZW, PHOTOMETRIC_MINISBLACK): fprintf(fd, " /LZWDecode filter\n"); return (TRUE); default: return (FALSE); } #undef P fprintf(fd, " <<"); fprintf(fd, "/K %d", K); fprintf(fd, " /Columns %d", (int)w); /* * The rows specification isn't really needed as the filter will * get the EOF signal at the end of the encoded data stream, but * we'll put it here to make the postscript code more robust. * The only special handling here is for images with more than * 10,000 pixels in height, as ghostview barfs on them giving a * rangecheck error. So in those cases, skip the /Rows directive */ if (h < 10000) fprintf(fd, " /Rows %d", (int)h); fprintf(fd, " /EndOfBlock false /BlackIs1 %s", (photometric == PHOTOMETRIC_MINISBLACK) ? "true" : "false"); fprintf(fd, ">>\n /CCITTFaxDecode filter\n"); return (TRUE); } void PSpage(FILE* fd, TIFF* tif, uint32 w, uint32 h) { ps_bytesperrow = tf_bytesperrow; 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 %d string def\n", (int)ps_bytesperrow); fprintf(fd, "%lu %lu 8\n", w, h); fprintf(fd, "[%lu 0 0 -%lu 0 %lu]\n", w, h, 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: if (level2) { int rawdata; fprintf(fd, "{ %lu { %lu %lu %d\n", tf_numberstrips, w, tf_rowsperstrip, bitspersample); fprintf(fd, " [%lu 0 0 -%lu 0 %lu]\n", w, h, h); fprintf(fd, " currentfile /ASCII%sDecode filter\n", ascii85 ? "85" : "Hex"); fprintf(fd, " dup 6 1 roll\n"); rawdata = emitPSLevel2FilterFunction(fd, tif, w, h); fprintf(fd, " dup 6 1 roll\n"); fprintf(fd, " { image flushfile flushfile }"); fprintf(fd, " stopped { handleioerror } if\n"); fprintf(fd, " 0 -%f translate\n", (double)tf_rowsperstrip/(double)h); fprintf(fd, " } repeat\n}\n"); PhotoshopBanner(fd, w, h, 1, 1, "image"); fprintf(fd, "%%%%BeginData\nexec\n"); if (ascii85) { if (rawdata) PSRawDataBW(fd, tif, w, tf_rowsperstrip); else PSDataBW(fd, tif, w, h); } else { if (rawdata) PSRawDataBW(fd, tif, w, h); else PSDataBW(fd, tif, w, h); } fprintf(fd, "%%%%~>\n%%%%EndData"); } else { PhotoshopBanner(fd, w, h, 1, 1, "image"); fprintf(fd, "/scanLine %d string def\n", (int)ps_bytesperrow); fprintf(fd, "%lu %lu %d\n", w, h, bitspersample); fprintf(fd, "[%lu 0 0 -%lu 0 %lu]\n", w, h, h); fprintf(fd, "{currentfile scanLine readhexstring pop} bind\n"); fprintf(fd, "image\n"); 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 %d string def\n", (int)ps_bytesperrow); fprintf(fd, "%lu %lu %d\n", w, h, bitspersample); fprintf(fd, "[%lu 0 0 -%lu 0 %lu]\n", w, h, 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 %d string def\n", i, (int)ps_bytesperrow); fprintf(fd, "%lu %lu %d\n", w, h, bitspersample); fprintf(fd, "[%lu 0 0 -%lu 0 %lu] \n", w, h, 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 MAXLINE 36 #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, cc, es = samplesperpixel - nc; 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; 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, cc, 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) 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); } void PSDataPalette(FILE* fd, TIFF* tif, uint32 w, uint32 h) { uint16 *rmap, *gmap, *bmap; uint32 row; int breaklen = MAXLINE, cc, nc; 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<= 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; (void) w; (void) h; tf_buf = (unsigned char *) _TIFFmalloc(stripsize); if (tf_buf == NULL) { TIFFError(filename, "No space for scanline buffer"); return; } if (ascii85) Ascii85Init(); for (s = 0; s < TIFFNumberOfStrips(tif); s++) { int 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++; } if (ascii85) { while (cc-- > 0) Ascii85Put(*cp++, fd); } else { while (cc-- > 0) { unsigned char c = *cp++; DOBREAK(breaklen, 1, fd); PUTHEX(c, fd); } } } if (ascii85) Ascii85Flush(fd); else if (level2) fputs(">\n", fd); _TIFFfree(tf_buf); } void PSRawDataBW(FILE* fd, TIFF* tif, uint32 w, uint32 h) { uint32 *bc; uint32 bufsize; int breaklen = MAXLINE, cc; uint16 fillorder; unsigned char *tf_buf; unsigned char *cp, c; tstrip_t s; (void) w; (void) h; TIFFGetField(tif, TIFFTAG_FILLORDER, &fillorder); TIFFGetField(tif, TIFFTAG_STRIPBYTECOUNTS, &bc); bufsize = bc[0]; tf_buf = (unsigned char*) _TIFFmalloc(bufsize); if (tf_buf == NULL) { TIFFError(filename, "No space for strip buffer"); return; } for (s = 0; s < tf_numberstrips; s++) { if (bc[s] > bufsize) { tf_buf = (unsigned char *) _TIFFrealloc(tf_buf, bc[s]); if (tf_buf == NULL) { TIFFError(filename, "No space for strip buffer"); return; } bufsize = bc[s]; } cc = TIFFReadRawStrip(tif, s, tf_buf, 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(); for (cp = tf_buf; cc > 0; cc--) Ascii85Put(*cp++, fd); Ascii85Flush(fd); } } _TIFFfree((char *) tf_buf); } /* * ASCII85 Encoding Support. */ unsigned char ascii85buf[10]; int ascii85count; int ascii85breaklen; 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] = q + '!'; word -= q * (85L*85*85*85); q = word / (85L*85*85); encoded[1] = q + '!'; word -= q * (85L*85*85); q = word / (85*85); encoded[2] = q + '!'; w1 = (uint16) (word - q*(85L*85)); encoded[3] = (w1 / 85) + '!'; encoded[4] = (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; } } p += 4; } _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); } const char* stuff[] = { "usage: tiff2ps [options] input.tif ...", "where options are:", " -1 generate PostScript Level I (default)", " -2 generate PostScript Level II", " -8 disable use of ASCII85 encoding with PostScript Level II", " -d # convert directory number #", " -D enable duplex printing (two pages per sheet of paper)", " -e generate Encapsulated PostScript (EPS)", " -h # assume printed page height is # inches (default 11)", " -o # convert directory at file offset #", " -O file write PostScript to file instead of standard output", " -a convert all directories in file (default is first)", " -p generate regular PostScript", " -s generate PostScript for a single image", " -T print pages for top edge binding", " -w # assume printed page width is # inches (default 8.5)", NULL }; static void usage(int code) { exit(code); }