/* $Id: fax2ps.c,v 1.16 2004-09-02 14:37:29 dron Exp $" */ /* * Copyright (c) 1991-1997 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 #include #include #include #include #ifdef HAVE_UNISTD_H # include #endif #ifdef HAVE_IO_H # include #endif #include "tiffio.h" float defxres = 204.; /* default x resolution (pixels/inch) */ float defyres = 98.; /* default y resolution (lines/inch) */ const float half = 0.5; const float points = 72.0; float pageWidth = 0; /* image page width (inches) */ float pageHeight = 0; /* image page length (inches) */ int scaleToPage = 0; /* if true, scale raster to page dimensions */ int totalPages = 0; /* total # pages printed */ int row; /* current output row */ int maxline = 512; /* max output line of PostScript */ /* * Turn a bit-mapped scanline into the appropriate sequence * of PostScript characters to be rendered. * * Original version written by Bret D. Whissel, * Florida State University Meteorology Department * March 13-15, 1995. */ static void printruns(unsigned char* buf, uint32* runs, uint32* erun, uint32 lastx) { static struct { char white, black; unsigned short width; } WBarr[] = { { 'd', 'n', 512 }, { 'e', 'o', 256 }, { 'f', 'p', 128 }, { 'g', 'q', 64 }, { 'h', 'r', 32 }, { 'i', 's', 16 }, { 'j', 't', 8 }, { 'k', 'u', 4 }, { 'l', 'v', 2 }, { 'm', 'w', 1 } }; static char* svalue = " !\"#$&'*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[]^_`abc"; int colormode = 1; /* 0 for white, 1 for black */ uint32 runlength = 0; int n = maxline; uint32 x = 0; int l; (void) buf; printf("%d m(", row++); while (runs < erun) { if (runlength <= 0) { colormode ^= 1; runlength = *runs++; if (x+runlength > lastx) runlength = runs[-1] = lastx-x; x += runlength; if (!colormode && runs == erun) break; /* don't bother printing the final white run */ } /* * If a runlength is greater than 6 pixels, then spit out * black or white characters until the runlength drops to * 6 or less. Once a runlength is <= 6, then combine black * and white runlengths until a 6-pixel pattern is obtained. * Then write out the special character. Six-pixel patterns * were selected since 64 patterns is the largest power of * two less than the 92 "easily printable" PostScript * characters (i.e., no escape codes or octal chars). */ l = 0; while (runlength > 6) { /* Run is greater than six... */ if (runlength >= WBarr[l].width) { if (n == 0) { putchar('\n'); n = maxline; } putchar(colormode ? WBarr[l].black : WBarr[l].white), n--; runlength -= WBarr[l].width; } else l++; } while (runlength > 0 && runlength <= 6) { uint32 bitsleft = 6; int t = 0; while (bitsleft) { if (runlength <= bitsleft) { if (colormode) t |= ((1 << runlength)-1) << (bitsleft-runlength); bitsleft -= runlength; runlength = 0; if (bitsleft) { if (runs >= erun) break; colormode ^= 1; runlength = *runs++; if (x+runlength > lastx) runlength = runs[-1] = lastx-x; x += runlength; } } else { /* runlength exceeds bits left */ if (colormode) t |= ((1 << bitsleft)-1); runlength -= bitsleft; bitsleft = 0; } } if (n == 0) { putchar('\n'); n = maxline; } putchar(svalue[t]), n--; } } printf(")s\n"); } /* * Create a special PostScript font for printing FAX documents. By taking * advantage of the font-cacheing mechanism, a substantial speed-up in * rendering time is realized. */ static void emitFont(FILE* fd) { static const char* fontPrologue[] = { "/newfont 10 dict def newfont begin /FontType 3 def /FontMatrix [1", "0 0 1 0 0] def /FontBBox [0 0 512 1] def /Encoding 256 array def", "0 1 31{Encoding exch /255 put}for 120 1 255{Encoding exch /255", "put}for Encoding 37 /255 put Encoding 40 /255 put Encoding 41 /255", "put Encoding 92 /255 put /count 0 def /ls{Encoding exch count 3", "string cvs cvn put /count count 1 add def}def 32 1 36{ls}for", "38 1 39{ls}for 42 1 91{ls}for 93 1 99{ls}for /count 100", "def 100 1 119{ls}for /CharDict 5 dict def CharDict begin /white", "{dup 255 eq{pop}{1 dict begin 100 sub neg 512 exch bitshift", "/cw exch def cw 0 0 0 cw 1 setcachedevice end}ifelse}def /black", "{dup 255 eq{pop}{1 dict begin 110 sub neg 512 exch bitshift", "/cw exch def cw 0 0 0 cw 1 setcachedevice 0 0 moveto cw 0 rlineto", "0 1 rlineto cw neg 0 rlineto closepath fill end}ifelse}def /numbuild", "{dup 255 eq{pop}{6 0 0 0 6 1 setcachedevice 0 1 5{0 moveto", "dup 32 and 32 eq{1 0 rlineto 0 1 rlineto -1 0 rlineto closepath", "fill newpath}if 1 bitshift}for pop}ifelse}def /.notdef {}", "def /255 {}def end /BuildChar{exch begin dup 110 ge{Encoding", "exch get 3 string cvs cvi CharDict /black get}{dup 100 ge {Encoding", "exch get 3 string cvs cvi CharDict /white get}{Encoding exch get", "3 string cvs cvi CharDict /numbuild get}ifelse}ifelse exec end", "}def end /Bitfont newfont definefont 1 scalefont setfont", NULL }; int i; for (i = 0; fontPrologue[i] != NULL; i++) fprintf(fd, "%s\n", fontPrologue[i]); } void printTIF(TIFF* tif, int pageNumber) { uint32 w, h; uint16 unit; float xres, yres, scale = 1.0; tstrip_t s, ns; time_t creation_time; TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &h); TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &w); if (!TIFFGetField(tif, TIFFTAG_XRESOLUTION, &xres) || !xres) { TIFFWarning(TIFFFileName(tif), "No x-resolution, assuming %g dpi", defxres); xres = defxres; } if (!TIFFGetField(tif, TIFFTAG_YRESOLUTION, &yres) || !yres) { TIFFWarning(TIFFFileName(tif), "No y-resolution, assuming %g lpi", defyres); yres = defyres; /* XXX */ } if (TIFFGetField(tif, TIFFTAG_RESOLUTIONUNIT, &unit) && unit == RESUNIT_CENTIMETER) { xres *= 2.54F; yres *= 2.54F; } if (pageWidth == 0) pageWidth = w / xres; if (pageHeight == 0) pageHeight = h / yres; printf("%%!PS-Adobe-3.0\n"); printf("%%%%Creator: fax2ps\n"); #ifdef notdef printf("%%%%Title: %s\n", file); #endif creation_time = time(0); printf("%%%%CreationDate: %s", ctime(&creation_time)); printf("%%%%Origin: 0 0\n"); printf("%%%%BoundingBox: 0 0 %u %u\n", (int)(pageWidth * points), (int)(pageHeight * points)); /* XXX */ printf("%%%%Pages: (atend)\n"); printf("%%%%EndComments\n"); printf("%%%%BeginProlog\n"); emitFont(stdout); printf("/d{bind def}def\n"); /* bind and def proc */ printf("/m{0 exch moveto}d\n"); printf("/s{show}d\n"); printf("/p{showpage}d \n"); /* end page */ printf("%%%%EndProlog\n"); printf("%%%%Page: \"%d\" %d\n", pageNumber, pageNumber); printf("/$pageTop save def gsave\n"); if (scaleToPage) scale = pageHeight / (h/yres) < pageWidth / (w/xres) ? pageHeight / (h/yres) : pageWidth / (w/xres); printf("%g %g translate\n", points * (pageWidth - scale*w/xres) * half, points * (scale*h/yres + (pageHeight - scale*h/yres) * half)); printf("%g %g scale\n", points/xres*scale, -points/yres*scale); printf("0 setgray\n"); TIFFSetField(tif, TIFFTAG_FAXFILLFUNC, printruns); ns = TIFFNumberOfStrips(tif); row = 0; for (s = 0; s < ns; s++) (void) TIFFReadEncodedStrip(tif, s, (tdata_t) NULL, (tsize_t) -1); printf("p\n"); printf("grestore $pageTop restore\n"); totalPages++; } #define GetPageNumber(tif) \ TIFFGetField(tif, TIFFTAG_PAGENUMBER, &pn, &ptotal) int findPage(TIFF* tif, int pageNumber) { uint16 pn = (uint16) -1; uint16 ptotal = (uint16) -1; if (GetPageNumber(tif)) { while (pn != pageNumber && TIFFReadDirectory(tif) && GetPageNumber(tif)) ; return (pn == pageNumber); } else return (TIFFSetDirectory(tif, (tdir_t)(pageNumber-1))); } void fax2ps(TIFF* tif, int npages, int* pages, char* filename) { if (npages > 0) { uint16 pn, ptotal; int i; if (!GetPageNumber(tif)) fprintf(stderr, "%s: No page numbers, counting directories.\n", filename); for (i = 0; i < npages; i++) { if (findPage(tif, pages[i])) printTIF(tif, pages[i]); else fprintf(stderr, "%s: No page number %d\n", filename, pages[i]); } } else { int pageNumber = 1; do printTIF(tif, pageNumber++); while (TIFFReadDirectory(tif)); } } #undef GetPageNumber static int pcompar(const void* va, const void* vb) { const int* pa = (const int*) va; const int* pb = (const int*) vb; return (*pa - *pb); } static void usage(int code); int main(int argc, char** argv) { extern int optind; extern char* optarg; int c, pageNumber; int* pages = 0, npages = 0; int dowarnings = 0; /* if 1, enable library warnings */ TIFF* tif; while ((c = getopt(argc, argv, "l:p:x:y:W:H:wS")) != -1) switch (c) { case 'H': /* page height */ pageHeight = (float)atof(optarg); break; case 'S': /* scale to page */ scaleToPage = 1; break; case 'W': /* page width */ pageWidth = (float)atof(optarg); break; case 'p': /* print specific page */ pageNumber = atoi(optarg); if (pageNumber < 1) { fprintf(stderr, "%s: Invalid page number (must be > 0).\n", optarg); usage(-1); } if (pages) pages = (int*) realloc((char*)pages, (npages+1)*sizeof(int)); else pages = (int*) malloc(sizeof(int)); pages[npages++] = pageNumber; break; case 'w': dowarnings = 1; break; case 'x': defxres = (float)atof(optarg); break; case 'y': defyres = (float)atof(optarg); break; case 'l': maxline = atoi(optarg); break; case '?': usage(-1); } if (npages > 0) qsort(pages, npages, sizeof (int), pcompar); if (!dowarnings) TIFFSetWarningHandler(0); if (optind < argc) { do { tif = TIFFOpen(argv[optind], "r"); if (tif) { fax2ps(tif, npages, pages, argv[optind]); TIFFClose(tif); } else fprintf(stderr, "%s: Can not open, or not a TIFF file.\n", argv[optind]); } while (++optind < argc); } else { int n; FILE* fd; char temp[1024], buf[16*1024]; strcpy(temp, "/tmp/fax2psXXXXXX"); (void) mktemp(temp); fd = fopen(temp, "w"); if (fd == NULL) { fprintf(stderr, "Could not create temp file \"%s\"\n", temp); exit(-2); } while ((n = read(fileno(stdin), buf, sizeof (buf))) > 0) write(fileno(fd), buf, n); tif = TIFFOpen(temp, "r"); #ifndef VMS unlink(temp); #else remove(temp); #endif if (tif) { fax2ps(tif, npages, pages, ""); TIFFClose(tif); } else fprintf(stderr, "%s: Can not open, or not a TIFF file.\n", temp); fclose(fd); } printf("%%%%Trailer\n"); printf("%%%%Pages: %u\n", totalPages); printf("%%%%EOF\n"); return (0); } char* stuff[] = { "usage: fax2ps [options] [input.tif ...]", "where options are:", " -w suppress warning messages", " -l chars set maximum output line length for generated PostScript", " -p page# select page to print (can use multiple times)", " -x xres set default horizontal resolution of input data (dpi)", " -y yres set default vertical resolution of input data (lpi)", " -S scale output to page size", " -W width set output page width (inches), default is 8.5", " -H height set output page height (inchest), default is 11", 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); } /* vim: set ts=8 sts=8 sw=8 noet: */