diff options
Diffstat (limited to 'tiff/contrib/ras/tif2ras.c')
| -rwxr-xr-x | tiff/contrib/ras/tif2ras.c | 344 |
1 files changed, 344 insertions, 0 deletions
diff --git a/tiff/contrib/ras/tif2ras.c b/tiff/contrib/ras/tif2ras.c new file mode 100755 index 0000000..e1c321d --- /dev/null +++ b/tiff/contrib/ras/tif2ras.c @@ -0,0 +1,344 @@ +#ifndef lint +static char id[] = "$Id: tif2ras.c,v 1.3 2010-06-08 18:55:15 bfriesen Exp $"; +#endif +/*- + * tif2ras.c - Converts from a Tagged Image File Format image to a Sun Raster. + * + * 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. + * + * Comments and additions should be sent to the author: + * + * Patrick J. Naughton + * Sun Microsystems + * 2550 Garcia Ave, MS 14-40 + * Mountain View, CA 94043 + * (415) 336-1080 + * + * Revision History: + * 10-Jan-89: Created. + * 06-Mar-90: Change to byte encoded rasterfiles. + * fix bug in call to ReadScanline(). + * fix bug in CVT() macro. + * fix assignment of td, (missing &). + * + * Description: + * This program takes a MicroSoft/Aldus "Tagged Image File Format" image or + * "TIFF" file as input and writes a Sun Rasterfile [see rasterfile(5)]. The + * output file may be standard output, but the input TIFF file must be a real + * file since seek(2) is used. + */ + +#include <stdio.h> +#include <pixrect/pixrect_hs.h> +#include "tiffio.h" + +typedef int boolean; +#define True (1) +#define False (0) +#define CVT(x) (((x) * 255) / ((1L<<16)-1)) + +boolean Verbose = False; +char *pname; /* program name (used for error messages) */ + +void +error(s1, s2) + char *s1, + *s2; +{ + fprintf(stderr, s1, pname, s2); + exit(1); +} + +void +usage() +{ + error("usage: %s -[vq] TIFFfile [rasterfile]\n", NULL); +} + + +main(argc, argv) + int argc; + char *argv[]; +{ + char *inf = NULL; + char *outf = NULL; + FILE *fp; + long width, + height; + int depth, + numcolors; + register TIFF *tif; + TIFFDirectory *td; + register u_char *inp, + *outp; + register int col, + i; + register long row; + u_char *Map = NULL; + u_char *buf; + short bitspersample; + short samplesperpixel; + short photometric; + u_short *redcolormap, + *bluecolormap, + *greencolormap; + + Pixrect *pix; /* The Sun Pixrect */ + colormap_t Colormap; /* The Pixrect Colormap */ + u_char red[256], + green[256], + blue[256]; + + setbuf(stderr, NULL); + pname = argv[0]; + + while (--argc) { + if ((++argv)[0][0] == '-') + switch (argv[0][1]) { + case 'v': + Verbose = True; + break; + case 'q': + usage(); + break; + default: + fprintf(stderr, "%s: illegal option -%c.\n", pname, + argv[0][1]); + exit(1); + } + else if (inf == NULL) + inf = argv[0]; + else if (outf == NULL) + outf = argv[0]; + else + usage(); + + } + + if (inf == NULL) + error("%s: can't read input file from a stream.\n", NULL); + + if (Verbose) + fprintf(stderr, "Reading %s...", inf); + + tif = TIFFOpen(inf, "r"); + + if (tif == NULL) + error("%s: error opening TIFF file %s", inf); + + if (Verbose) + TIFFPrintDirectory(tif, stderr, True, False, False); + TIFFGetField(tif, TIFFTAG_BITSPERSAMPLE, &bitspersample); + if (bitspersample > 8) + error("%s: can't handle more than 8-bits per sample\n", NULL); + + TIFFGetField(tif, TIFFTAG_SAMPLESPERPIXEL, &samplesperpixel); + switch (samplesperpixel) { + case 1: + if (bitspersample == 1) + depth = 1; + else + depth = 8; + break; + case 3: + case 4: + depth = 24; + break; + default: + error("%s: only handle 1-channel gray scale or 3-channel color\n"); + } + + TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &width); + TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &height); + + if (Verbose) + fprintf(stderr, "%dx%dx%d image, ", width, height, depth); + if (Verbose) + fprintf(stderr, "%d bits/sample, %d samples/pixel, ", + bitspersample, samplesperpixel); + + pix = mem_create(width, height, depth); + if (pix == (Pixrect *) NULL) + error("%s: can't allocate memory for output pixrect...\n", NULL); + + numcolors = (1 << bitspersample); + + TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &photometric); + if (numcolors == 2) { + if (Verbose) + fprintf(stderr, "monochrome "); + Colormap.type = RMT_NONE; + Colormap.length = 0; + Colormap.map[0] = Colormap.map[1] = Colormap.map[2] = NULL; + } else { + switch (photometric) { + case PHOTOMETRIC_MINISBLACK: + if (Verbose) + fprintf(stderr, "%d graylevels (min=black), ", numcolors); + Map = (u_char *) malloc(numcolors * sizeof(u_char)); + for (i = 0; i < numcolors; i++) + Map[i] = (255 * i) / numcolors; + Colormap.type = RMT_EQUAL_RGB; + Colormap.length = numcolors; + Colormap.map[0] = Colormap.map[1] = Colormap.map[2] = Map; + break; + case PHOTOMETRIC_MINISWHITE: + if (Verbose) + fprintf(stderr, "%d graylevels (min=white), ", numcolors); + Map = (u_char *) malloc(numcolors * sizeof(u_char)); + for (i = 0; i < numcolors; i++) + Map[i] = 255 - ((255 * i) / numcolors); + Colormap.type = RMT_EQUAL_RGB; + Colormap.length = numcolors; + Colormap.map[0] = Colormap.map[1] = Colormap.map[2] = Map; + break; + case PHOTOMETRIC_RGB: + if (Verbose) + fprintf(stderr, "truecolor "); + Colormap.type = RMT_NONE; + Colormap.length = 0; + Colormap.map[0] = Colormap.map[1] = Colormap.map[2] = NULL; + break; + case PHOTOMETRIC_PALETTE: + if (Verbose) + fprintf(stderr, "colormapped "); + Colormap.type = RMT_EQUAL_RGB; + Colormap.length = numcolors; + memset(red, 0, sizeof(red)); + memset(green, 0, sizeof(green)); + memset(blue, 0, sizeof(blue)); + TIFFGetField(tif, TIFFTAG_COLORMAP, + &redcolormap, &greencolormap, &bluecolormap); + for (i = 0; i < numcolors; i++) { + red[i] = (u_char) CVT(redcolormap[i]); + green[i] = (u_char) CVT(greencolormap[i]); + blue[i] = (u_char) CVT(bluecolormap[i]); + } + Colormap.map[0] = red; + Colormap.map[1] = green; + Colormap.map[2] = blue; + break; + case PHOTOMETRIC_MASK: + error("%s: Don't know how to handle PHOTOMETRIC_MASK\n"); + break; + case PHOTOMETRIC_DEPTH: + error("%s: Don't know how to handle PHOTOMETRIC_DEPTH\n"); + break; + default: + error("%s: unknown photometric (cmap): %d\n", photometric); + } + } + + buf = (u_char *) malloc(TIFFScanlineSize(tif)); + if (buf == NULL) + error("%s: can't allocate memory for scanline buffer...\n", NULL); + + for (row = 0; row < height; row++) { + if (TIFFReadScanline(tif, buf, row, 0) < 0) + error("%s: bad data read on line: %d\n", row); + inp = buf; + outp = (u_char *) mprd_addr(mpr_d(pix), 0, row); + switch (photometric) { + case PHOTOMETRIC_RGB: + if (samplesperpixel == 4) + for (col = 0; col < width; col++) { + *outp++ = *inp++; /* Blue */ + *outp++ = *inp++; /* Green */ + *outp++ = *inp++; /* Red */ + inp++; /* skip alpha channel */ + } + else + for (col = 0; col < width; col++) { + *outp++ = *inp++; /* Blue */ + *outp++ = *inp++; /* Green */ + *outp++ = *inp++; /* Red */ + } + break; + case PHOTOMETRIC_MINISWHITE: + case PHOTOMETRIC_MINISBLACK: + switch (bitspersample) { + case 1: + for (col = 0; col < ((width + 7) / 8); col++) + *outp++ = *inp++; + break; + case 2: + for (col = 0; col < ((width + 3) / 4); col++) { + *outp++ = (*inp >> 6) & 3; + *outp++ = (*inp >> 4) & 3; + *outp++ = (*inp >> 2) & 3; + *outp++ = *inp++ & 3; + } + break; + case 4: + for (col = 0; col < width / 2; col++) { + *outp++ = *inp >> 4; + *outp++ = *inp++ & 0xf; + } + break; + case 8: + for (col = 0; col < width; col++) + *outp++ = *inp++; + break; + default: + error("%s: bad bits/sample: %d\n", bitspersample); + } + break; + case PHOTOMETRIC_PALETTE: + memcpy(outp, inp, width); + break; + default: + error("%s: unknown photometric (write): %d\n", photometric); + } + } + + free((char *) buf); + + if (Verbose) + fprintf(stderr, "done.\n"); + + if (outf == NULL || strcmp(outf, "Standard Output") == 0) { + outf = "Standard Output"; + fp = stdout; + } else { + if (!(fp = fopen(outf, "w"))) + error("%s: %s couldn't be opened for writing.\n", outf); + } + + if (Verbose) + fprintf(stderr, "Writing rasterfile in %s...", outf); + + if (pr_dump(pix, fp, &Colormap, RT_BYTE_ENCODED, 0) == PIX_ERR) + error("%s: error writing Sun Rasterfile: %s\n", outf); + + if (Verbose) + fprintf(stderr, "done.\n"); + + pr_destroy(pix); + + if (fp != stdout) + fclose(fp); + + exit(0); +} +/* + * Local Variables: + * mode: c + * c-basic-offset: 8 + * fill-column: 78 + * End: + */ |