/* ** pnmtotiff.c - converts a portable anymap to a Tagged Image File ** ** Derived by Jef Poskanzer from ras2tif.c, which is: ** ** Copyright (c) 1990 by Sun Microsystems, Inc. ** ** Author: Patrick J. Naughton ** naughton@wind.sun.com ** ** Permission to use, copy, modify, and distribute this software and its ** documentation for any purpose and without fee is hereby granted, ** provided that the above copyright notice appear in all copies and that ** both that copyright notice and this permission notice appear in ** supporting documentation. ** ** This file is provided AS IS with no warranties of any kind. The author ** shall have no liability with respect to the infringement of copyrights, ** trade secrets or any patents by this file or any part thereof. In no ** event will the author be liable for any lost revenue or profits or ** other special, indirect and consequential damages. */ #define _XOPEN_SOURCE /* Make sure stdio.h contains fileno() */ #include "pnm.h" #include "shhopt.h" #include #include #ifdef VMS #ifdef SYSV #undef SYSV #endif #include #endif #include #include #define MAXCOLORS 256 /* 2001.09.03: Old tiff.h doesn't contain these values: */ #ifndef COMPRESSION_ADOBE_DEFLATE #define COMPRESSION_ADOBE_DEFLATE 8 #endif struct sizeset { bool b1, b2, b4, b8; }; struct cmdline_info { /* All the information the user supplied in the command line, in a form easy for the program to use. */ const char *input_filespec; /* Filespecs of input files */ int compression; /* COMPRESSION Tiff tag value */ int fillorder; /* FILLORDER Tiff tag value */ int g3options; /* G3OPTIONS Tiff tag value or 0 for none */ int predictor; /* PREDICTOR Tiff tag value or -1 for none */ int rowsperstrip; /* -1 = unspecified */ unsigned int minisblack; /* logical: User wants MINISBLACK photometric */ unsigned int miniswhite; /* logical: User wants MINISWHITE photometric */ unsigned int truecolor; /* logical: User wants truecolor, not cmap */ unsigned int color; /* logical: assume not grayscale */ float xresolution; /* XRESOLUTION Tiff tag value or -1 for none */ float yresolution; /* YRESOLUTION Tiff tag value or -1 for none */ int resolutionUnit; /* RESOLUTIONUNIT Tiff tag value */ struct sizeset indexsizeAllowed; /* Which bit widths are allowable in a raster of palette indices */ }; static void parse_command_line(int argc, char ** argv, struct cmdline_info *cmdline_p) { /*---------------------------------------------------------------------------- Note that the file spec array we return is stored in the storage that was passed to us as the argv array. -----------------------------------------------------------------------------*/ optEntry *option_def = malloc(100*sizeof(optEntry)); optStruct3 opt; unsigned int none, packbits, lzw, g3, g4, msb2lsb, lsb2msb, opt_2d, fill; unsigned int flate, adobeflate; char * indexbits; char * resolutionUnit; unsigned int predictorSpec, rowsperstripSpec, xresolutionSpec, yresolutionSpec, indexbitsSpec, resolutionUnitSpec; unsigned int option_def_index; option_def_index = 0; /* incremented by OPTENT3 */ OPTENT3(0, "none", OPT_FLAG, NULL, &none, 0); OPTENT3(0, "packbits", OPT_FLAG, NULL, &packbits, 0); OPTENT3(0, "lzw", OPT_FLAG, NULL, &lzw, 0); OPTENT3(0, "g3", OPT_FLAG, NULL, &g3, 0); OPTENT3(0, "g4", OPT_FLAG, NULL, &g4, 0); OPTENT3(0, "flate", OPT_FLAG, NULL, &flate, 0); OPTENT3(0, "adobeflate", OPT_FLAG, NULL, &adobeflate, 0); OPTENT3(0, "msb2lsb", OPT_FLAG, NULL, &msb2lsb, 0); OPTENT3(0, "lsb2msb", OPT_FLAG, NULL, &lsb2msb, 0); OPTENT3(0, "2d", OPT_FLAG, NULL, &opt_2d, 0); OPTENT3(0, "fill", OPT_FLAG, NULL, &fill, 0); OPTENT3(0, "minisblack", OPT_FLAG, NULL, &cmdline_p->minisblack, 0); OPTENT3(0, "mb", OPT_FLAG, NULL, &cmdline_p->minisblack, 0); OPTENT3(0, "miniswhite", OPT_FLAG, NULL, &cmdline_p->miniswhite, 0); OPTENT3(0, "mw", OPT_FLAG, NULL, &cmdline_p->miniswhite, 0); OPTENT3(0, "truecolor", OPT_FLAG, NULL, &cmdline_p->truecolor, 0); OPTENT3(0, "color", OPT_FLAG, NULL, &cmdline_p->color, 0); OPTENT3(0, "predictor", OPT_UINT, &cmdline_p->predictor, &predictorSpec, 0); OPTENT3(0, "rowsperstrip", OPT_UINT, &cmdline_p->rowsperstrip, &rowsperstripSpec, 0); OPTENT3(0, "xresolution", OPT_FLOAT, &cmdline_p->xresolution, &xresolutionSpec, 0); OPTENT3(0, "yresolution", OPT_FLOAT, &cmdline_p->yresolution, &yresolutionSpec, 0); OPTENT3(0, "resolutionunit", OPT_STRING, &resolutionUnit, &resolutionUnitSpec, 0); OPTENT3(0, "indexbits", OPT_STRING, &indexbits, &indexbitsSpec, 0); opt.opt_table = option_def; opt.short_allowed = FALSE; /* We have no short (old-fashioned) options */ opt.allowNegNum = FALSE; /* We have no parms that are negative numbers */ optParseOptions3(&argc, argv, opt, sizeof(opt), 0); /* Uses and sets argc, argv, and some of *cmdline_p and others. */ if (none + packbits + lzw + g3 + g4 + flate + adobeflate > 1) pm_error("You specified more than one compression option. " "Only one of -none, -packbits, -lze, -g3, and -g4 " "is allowed."); if (none) cmdline_p->compression = COMPRESSION_NONE; else if (packbits) cmdline_p->compression = COMPRESSION_PACKBITS; else if (lzw) cmdline_p->compression = COMPRESSION_LZW; else if (g3) cmdline_p->compression = COMPRESSION_CCITTFAX3; else if (g4) cmdline_p->compression = COMPRESSION_CCITTFAX4; else if (adobeflate) cmdline_p->compression = COMPRESSION_ADOBE_DEFLATE; else if (flate) cmdline_p->compression = COMPRESSION_DEFLATE; else cmdline_p->compression = COMPRESSION_NONE; if (msb2lsb + lsb2msb > 1) pm_error("You specified both -msb2lsb and -lsb2msb. " "These are conflicting options."); if (msb2lsb) cmdline_p->fillorder = FILLORDER_MSB2LSB; else if (lsb2msb) cmdline_p->fillorder = FILLORDER_LSB2MSB; else cmdline_p->fillorder = FILLORDER_MSB2LSB; if (cmdline_p->miniswhite && cmdline_p->minisblack) pm_error("You cannot specify both -miniswhite and -minisblack"); cmdline_p->g3options = 0; /* initial value */ if (opt_2d) cmdline_p->g3options |= GROUP3OPT_2DENCODING; if (fill) cmdline_p->g3options |= GROUP3OPT_FILLBITS; if (predictorSpec) { if (cmdline_p->predictor != 1 && cmdline_p->predictor != 2) pm_error("-predictor may be only 1 or 2. You specified %d.", cmdline_p->predictor); } else cmdline_p->predictor = -1; if (rowsperstripSpec) { if (cmdline_p->rowsperstrip < 1) pm_error("-rowsperstrip must be positive. You specified %d.", cmdline_p->rowsperstrip); } else cmdline_p->rowsperstrip = -1; if (xresolutionSpec) { if (cmdline_p->xresolution < 1) pm_error("-xresolution must be positive. You specified %f.", cmdline_p->xresolution); } else cmdline_p->xresolution = -1; if (yresolutionSpec) { if (cmdline_p->yresolution < 1) pm_error("-yresolution must be positive. You specified %f.", cmdline_p->yresolution); } else cmdline_p->yresolution = -1; if (resolutionUnitSpec) { if (strcmp(resolutionUnit, "inch") == 0) cmdline_p->resolutionUnit = RESUNIT_INCH; else if (strcmp(resolutionUnit, "in") == 0) cmdline_p->resolutionUnit = RESUNIT_INCH; else if (strcmp(resolutionUnit, "centimeter") == 0) cmdline_p->resolutionUnit = RESUNIT_CENTIMETER; else if (strcmp(resolutionUnit, "cm") == 0) cmdline_p->resolutionUnit = RESUNIT_CENTIMETER; else if (strcmp(resolutionUnit, "none") == 0) cmdline_p->resolutionUnit = RESUNIT_NONE; else if (strcmp(resolutionUnit, "no") == 0) cmdline_p->resolutionUnit = RESUNIT_NONE; else pm_error("The only acceptable values for -resolutionunit are " "inch, centimeter, none, in, cm, and no. " "You specified '%s'.", resolutionUnit); } else cmdline_p->resolutionUnit = RESUNIT_INCH; if (indexbitsSpec) { if (strstr(indexbits, "1")) cmdline_p->indexsizeAllowed.b1 = TRUE; else cmdline_p->indexsizeAllowed.b1 = FALSE; if (strstr(indexbits, "2")) cmdline_p->indexsizeAllowed.b2 = TRUE; else cmdline_p->indexsizeAllowed.b2 = FALSE; if (strstr(indexbits, "4")) cmdline_p->indexsizeAllowed.b4 = TRUE; else cmdline_p->indexsizeAllowed.b4 = FALSE; if (strstr(indexbits, "8")) cmdline_p->indexsizeAllowed.b8 = TRUE; else cmdline_p->indexsizeAllowed.b8 = FALSE; } else { cmdline_p->indexsizeAllowed.b1 = FALSE; cmdline_p->indexsizeAllowed.b2 = FALSE; cmdline_p->indexsizeAllowed.b4 = FALSE; cmdline_p->indexsizeAllowed.b8 = TRUE; } if (argc-1 == 0) cmdline_p->input_filespec = "-"; else if (argc-1 != 1) pm_error("Program takes zero or one argument (filename). You " "specified %d", argc-1); else cmdline_p->input_filespec = argv[1]; } /* Note: PUTSAMPLE doesn't work if bitspersample is 1-4. */ #define PUTSAMPLE { \ if (maxval != tiff_maxval) \ s = s * tiff_maxval / maxval; \ if (bitspersample > 8) { \ *((unsigned short *)tP) = s; \ tP += sizeof(short); \ } else { \ *tP++ = s & 0xff; \ } \ } static void fillRowOfSubBytePixels(const xel * const xelrow, unsigned char* const buf, xelval const maxval, unsigned short const tiff_maxval, unsigned short const photometric, int const fillorder, int const bitspersample, int const cols, colorhash_table const cht) { /*---------------------------------------------------------------------------- This subroutine deals with cases where multiple pixels are packed into a single byte of the Tiff output image, i.e. bits per pixel < 8. -----------------------------------------------------------------------------*/ int col; int bitshift; /* The number of bits we have to shift a pixel value left to line it up with where the current pixel goes in the current byte of the output buffer. */ int const firstbitshift = (fillorder == FILLORDER_MSB2LSB) ? 8 - bitspersample : 0; /* The value of 'bitshift' for the first pixel into a byte of the output buffer. (MSB2LSB is normal). */ xelval s; /* The value of the current pixel */ unsigned char* tP; /* The address of the byte in the output buffer in which the current pixel goes. */ unsigned char byte; /* The under-construction value of the byte pointed to by tP, above. */ bitshift = firstbitshift; byte = 0; for (col = 0, tP = buf; col < cols; ++col) { if (cht == NULL) { /* It's grayscale */ s = PNM_GET1( xelrow[col] ); if ( maxval != tiff_maxval ) s = (long) s * tiff_maxval / maxval; if (photometric == PHOTOMETRIC_MINISWHITE) s = tiff_maxval - s; } else { /* It's a colormapped raster */ int si; si = ppm_lookupcolor(cht, &xelrow[col]); if (si == -1) pm_error("color not found?!? " "col=%d r=%d g=%d b=%d", col, PPM_GETR( xelrow[col] ), PPM_GETG(xelrow[col]), PPM_GETB(xelrow[col])); s = (unsigned char) si; } byte |= s << bitshift; if (fillorder == FILLORDER_MSB2LSB) bitshift -= bitspersample; /* normal case */ else bitshift += bitspersample; if (bitshift < 0 || bitshift > 7) { *tP++ = byte; bitshift = firstbitshift; byte = 0; } } if (bitshift != firstbitshift) *tP++ = byte; } static void writeScanLines(FILE * const ifp, TIFF * const tif, colorhash_table const cht, int const format, int const cols, int const rows, xelval const maxval, unsigned short const tiff_maxval, unsigned short const bitspersample, unsigned short const photometric, int const bytesperrow, bool const grayscale, int const fillorder) { /*---------------------------------------------------------------------------- Write out the raster for the image in file 'ifp', which is positioned to the header of the image. -----------------------------------------------------------------------------*/ xel * xelrow; /* malloc'ed */ unsigned char* buf; int row; /* The man page for TIFFWriteScanLine doesn't tell the format of it's 'buf' parameter, but here it is: Its format depends on the bits per pixel of the TIFF image. If it's 16, 'buf' is an array of short (16 bit) integers, one per raster column. If it's 8, 'buf' is an array of characters (8 bit integers), one per image column. If it's less than 8, it's an array of characters, each of which represents 1-8 raster columns, packed into it in the order specified by the TIFF image's fill order, with don't-care bits on the right such that each byte contains only whole pixels. In all cases, the array elements are in order left to right going from low array indices to high array indices. */ buf = (unsigned char*) malloc( bytesperrow ); if ( buf == (unsigned char*) 0 ) pm_error( "can't allocate memory for row buffer" ); xelrow = pnm_allocrow(cols); for (row = 0; row < rows; ++row) { int col; pnm_readpnmrow(ifp, xelrow, cols, maxval, format); if ( PNM_FORMAT_TYPE(format) == PPM_TYPE && ! grayscale ) { if (cht == NULL) { /* It's an RGB raster */ unsigned char* tP; for (col = 0, tP = buf; col < cols; ++col) { register xelval s; s = PPM_GETR( xelrow[col] ); PUTSAMPLE; /* advances tP */ s = PPM_GETG( xelrow[col] ); PUTSAMPLE; /* advances tP */ s = PPM_GETB( xelrow[col] ); PUTSAMPLE; /* advances tP */ } } else { /* It's a colormapped raster */ if (bitspersample == 8) { for (col = 0; col < cols; ++col) { int s; s = ppm_lookupcolor(cht, &xelrow[col]); if (s == -1) pm_error("color not found?!? " "row=%d col=%d r=%d g=%d b=%d", row, col, PPM_GETR( xelrow[col] ), PPM_GETG(xelrow[col]), PPM_GETB(xelrow[col])); buf[col] = (unsigned char) s; } } else { fillRowOfSubBytePixels(xelrow, buf, 0, 0, 0, fillorder, bitspersample, cols, cht); } } } else { /* It's grayscale */ if (bitspersample == 8 || bitspersample == 16) { unsigned char* tP; tP = buf; for (col = 0; col < cols; ++col) { xelval s = PNM_GET1(xelrow[col]); PUTSAMPLE; /* advances tP */ } } else fillRowOfSubBytePixels(xelrow, buf, maxval, tiff_maxval, photometric, fillorder, bitspersample, cols, NULL); } if (TIFFWriteScanline( tif, buf, row, 0 ) < 0) pm_error( "failed a scanline write on row %d", row ); } pnm_freerow(xelrow); free(buf); } static void analyzeColors(FILE * const ifp, struct cmdline_info const cmdline, int const cols, int const rows, xelval const maxval, int const format, int const maxcolors, colorhist_vector * const chvP, int * const colorsP, bool * const grayscaleP) { /*---------------------------------------------------------------------------- Analyze the colors in the image that is in the file 'ifp', which is positioned to the raster. If the colors, combined with command line options 'cmdline', indicate a colormapped TIFF should be generated, return as *chvP the address of a color map (in newly malloc'ed space). If a colormapped TIFF is not indicated, return *chvP == NULL. Leave the file position undefined. -----------------------------------------------------------------------------*/ switch (PNM_FORMAT_TYPE(format)) { case PPM_TYPE: if (cmdline.color && cmdline.truecolor) { *chvP = NULL; *grayscaleP = FALSE; } else { colorhist_vector chv; bool grayscale; pm_message( "computing colormap..." ); chv = ppm_computecolorhist2(ifp, cols, rows, maxval, format, maxcolors, colorsP); if (chv == NULL) { grayscale = FALSE; } else { int i; pm_message("%d color%s found", *colorsP, *colorsP == 1 ? "" : "s"); grayscale = TRUE; /* initial assumption */ for (i = 0; i < *colorsP && grayscale; ++i) { xelval r, g, b; r = PPM_GETR(chv[i].color); g = PPM_GETG(chv[i].color); b = PPM_GETB(chv[i].color); if (r != g || g != b) grayscale = FALSE; } } *grayscaleP = grayscale; if (grayscale || cmdline.truecolor) { *chvP = NULL; if (chv) ppm_freecolorhist(chv); } else { /* He wants a colormap. But can we give it to him? */ if (chv) *chvP = chv; else { pm_message("Too many colors - " "proceeding to write a 24-bit RGB file."); pm_message("If you want an 8-bit palette file, " "try doing a 'pnmquant %d'.", maxcolors); *chvP = NULL; } } } break; default: *chvP = NULL; *grayscaleP = TRUE; break; } } static void computeRasterParm(int const cols, int const format, xelval const maxval, colorhist_vector const chv, int const colors, bool const grayscale, int const compression, bool const minisblack, bool const miniswhite, struct sizeset const indexsizeAllowed, int const requested_rowsperstrip, unsigned short * const samplesperpixelP, unsigned short * const bitspersampleP, unsigned short * const photometricP, int * const bytesperrowP, unsigned short * const rowsperstripP) { /*---------------------------------------------------------------------------- Compute the parameters of the raster portion of the TIFF image. 'minisblack' and 'miniswhite' mean the user requests the corresponding photometric. Both FALSE means user has no explicit requirement. -----------------------------------------------------------------------------*/ unsigned short defaultPhotometric; /* The photometric we use if the user specified no preference */ /* We determine the bits per sample by the maxval, except that if it would be more than 8, we just use 16. I don't know if bits per sample between 8 and 16 are legal, but they aren't very nice in any case. If users want them, we should provide an option. It is not clear why we don't use bits per pixel < 8 for RGB images. Note that code to handle maxvals <= 255 was written long before maxval > 255 was possible and there are backward compatibility requirements. */ if (PNM_FORMAT_TYPE(format) == PBM_TYPE) { *samplesperpixelP = 1; *bitspersampleP = 1; if ((compression == COMPRESSION_CCITTFAX3) || (compression == COMPRESSION_CCITTFAX4)) defaultPhotometric = PHOTOMETRIC_MINISWHITE; else defaultPhotometric = PHOTOMETRIC_MINISBLACK; } else { if (chv) { *samplesperpixelP = 1; *bitspersampleP = colors <= 2 && indexsizeAllowed.b1 ? 1 : colors <= 4 && indexsizeAllowed.b2 ? 2 : colors <= 16 && indexsizeAllowed.b4 ? 4 : colors <= 256 && indexsizeAllowed.b8 ? 8 : 0; if (*bitspersampleP == 0) pm_error("Your -indexbits option is insufficient for the " "%d colors in this image.", colors); defaultPhotometric = PHOTOMETRIC_PALETTE; } else { if (grayscale) { *samplesperpixelP = 1; *bitspersampleP = maxval > 255 ? 16 : pm_maxvaltobits(maxval); defaultPhotometric = PHOTOMETRIC_MINISBLACK; } else { *samplesperpixelP = 3; *bitspersampleP = maxval > 255 ? 16 : 8; defaultPhotometric = PHOTOMETRIC_RGB; } } } if (miniswhite) *photometricP = PHOTOMETRIC_MINISWHITE; else if (minisblack) *photometricP = PHOTOMETRIC_MINISBLACK; else *photometricP = defaultPhotometric; if (*bitspersampleP < 8) { int samplesperbyte; samplesperbyte = 8 / *bitspersampleP; *bytesperrowP = (cols * *samplesperpixelP + samplesperbyte-1) / samplesperbyte; } else *bytesperrowP = (cols * *samplesperpixelP * *bitspersampleP) / 8; if (requested_rowsperstrip == -1 ) *rowsperstripP = (8 * 1024) / *bytesperrowP; else *rowsperstripP = requested_rowsperstrip; } static void createTiffGenerator(int const ofd, const char * const outfileName, TIFF ** const tifP) { int rc; /* Before 10.12 (November 2002), we set O_NONBLOCK here: fcntl( 1, F_SETFL, O_NONBLOCK ) ; I have no idea why. The comment attached said, acooke dec99 - otherwise blocks on read inside next line (Linux i386) */ /* TIFF library does not give meaningful error message for the common error of supplying an non-seekable file for the output file. So we check for that first. */ lseek(ofd, 0, SEEK_SET); rc = write(ofd, "test", strlen("test")); if (rc < 1) pm_error("Unable to write to output file (%s). " "Test write failed with errno %d (%s)", outfileName, errno, strerror(errno)); else { int rc; rc = lseek(ofd, 0, SEEK_SET); if (rc < 0) pm_error("Output file (%s) is not seekable. lseek() returned " "errno %d (%s). " "The TIFF library can write only to " "a seekable file.", outfileName, errno, strerror(errno)); else { *tifP = TIFFFdOpen( ofd, outfileName, "w" ); if ( *tifP == NULL ) pm_error( "error opening standard output as TIFF file" ); } } } int main(int argc, char *argv[]) { struct cmdline_info cmdline; const char* inf; FILE* ifp; colorhist_vector chv; colorhash_table cht; unsigned short red[MAXCOLORS], grn[MAXCOLORS], blu[MAXCOLORS]; int cols, rows, format, colors, i; xelval maxval; /* maxval of PNM input */ int grayscale; TIFF* tifP; unsigned short photometric; unsigned short rowsperstrip; unsigned short samplesperpixel; unsigned short bitspersample; unsigned short tiff_maxval; /* This is the maxval of the samples in the tiff file. It is determined solely by the bits per sample ('bitspersample'). */ int bytesperrow; pm_filepos rasterPos; pnm_init( &argc, argv ); parse_command_line(argc, argv, &cmdline); ifp = pm_openr_seekable(cmdline.input_filespec); if (strcmp(cmdline.input_filespec, "-") == 0) inf = "Standard Input"; else inf = cmdline.input_filespec; pnm_readpnminit(ifp, &cols, &rows, &maxval, &format); pm_tell2(ifp, &rasterPos, sizeof(rasterPos)); analyzeColors(ifp, cmdline, cols, rows, maxval, format, MAXCOLORS, &chv, &colors, &grayscale); /* Go back to beginning of raster */ pm_seek2(ifp, &rasterPos, sizeof(rasterPos)); createTiffGenerator(fileno(stdout), "Standard Output", &tifP); /* Figure out TIFF parameters. */ computeRasterParm(cols, format, maxval, chv, colors, grayscale, cmdline.compression, cmdline.minisblack, cmdline.miniswhite, cmdline.indexsizeAllowed, cmdline.rowsperstrip, &samplesperpixel, &bitspersample, &photometric, &bytesperrow, &rowsperstrip); tiff_maxval = pm_bitstomaxval( bitspersample ); /* Set TIFF parameters. */ TIFFSetField( tifP, TIFFTAG_IMAGEWIDTH, cols ); TIFFSetField( tifP, TIFFTAG_IMAGELENGTH, rows ); TIFFSetField( tifP, TIFFTAG_BITSPERSAMPLE, bitspersample ); TIFFSetField( tifP, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT ); TIFFSetField( tifP, TIFFTAG_COMPRESSION, cmdline.compression ); if (cmdline.compression == COMPRESSION_CCITTFAX3 && cmdline.g3options != 0) TIFFSetField( tifP, TIFFTAG_GROUP3OPTIONS, cmdline.g3options ); if ( cmdline.compression == COMPRESSION_LZW && cmdline.predictor != -1 ) TIFFSetField( tifP, TIFFTAG_PREDICTOR, cmdline.predictor ); TIFFSetField( tifP, TIFFTAG_PHOTOMETRIC, photometric ); TIFFSetField( tifP, TIFFTAG_FILLORDER, cmdline.fillorder ); TIFFSetField( tifP, TIFFTAG_DOCUMENTNAME, inf ); TIFFSetField( tifP, TIFFTAG_IMAGEDESCRIPTION, "converted PNM file" ); TIFFSetField( tifP, TIFFTAG_SAMPLESPERPIXEL, samplesperpixel ); TIFFSetField( tifP, TIFFTAG_ROWSPERSTRIP, rowsperstrip ); if ( cmdline.xresolution != -1 ) TIFFSetField( tifP, TIFFTAG_XRESOLUTION, cmdline.xresolution ); if ( cmdline.yresolution != -1 ) TIFFSetField( tifP, TIFFTAG_YRESOLUTION, cmdline.yresolution ); TIFFSetField( tifP, TIFFTAG_RESOLUTIONUNIT, cmdline.resolutionUnit); /* TIFFSetField( tifP, TIFFTAG_STRIPBYTECOUNTS, rows / rowsperstrip ); */ TIFFSetField( tifP, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG ); if (!chv) cht = NULL; else { /* Make TIFF colormap. */ for (i = 0; i < colors; ++i) { red[i] = (long) PPM_GETR( chv[i].color ) * 65535L / maxval; grn[i] = (long) PPM_GETG( chv[i].color ) * 65535L / maxval; blu[i] = (long) PPM_GETB( chv[i].color ) * 65535L / maxval; } /* Clear unused colormap entries. */ for (i = colors; i < (1 << bitspersample); ++i) { red[i] = grn[i] = blu[i] = 0; } TIFFSetField( tifP, TIFFTAG_COLORMAP, red, grn, blu ); /* Convert color vector to color hash table, for fast lookup. */ cht = ppm_colorhisttocolorhash( chv, colors ); ppm_freecolorhist( chv ); } writeScanLines(ifp, tifP, cht, format, cols, rows, maxval, tiff_maxval, bitspersample, photometric, bytesperrow, grayscale, cmdline.fillorder); TIFFFlushData(tifP); TIFFClose(tifP); pm_close(ifp); exit(0); }