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226f5fd57e
libtiff/tools/tiffcrop.c
Frank Warmerdam 6e6e603753 fix some portability and warning issues with tiffcrop
2008-06-17 20:16:54 +00:00

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/* $Id: tiffcrop.c,v 1.7 2008-06-17 20:16:54 fwarmerdam Exp $ */
/* tiffcrop.c -- a port of tiffcp.c extended to include manipulations of
* the image data through additional options listed below
*
* Original code:
*
* 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.
*
* Additions (c) Richard Nolde Last Updated 5/15/2008
* IN NO EVENT SHALL RICHARD NOLDE 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.
*
* Add support for the options below to extract sections of image(s)
* and to modify the whole image or selected portions of each image by
* rotations, mirroring, and colorscale/colormap inversion of selected
* types of TIFF images when appropriate. Some functions are restricted
* to bilevel or 8 bit per sample images with integer data.
*
* Options:
* -h Display the syntax guide.
* -v Report the version and last build date for tiffcrop
* -z x1,y1,x2,y2:x3,y3,x4,y4:..xN,yN,xN + 1, yN + 1
* Specify a series of coordinates to define regions
* -e c|d|i|m|s export mode for images and selections from input images
* combined All images and selections are written to a single file (default)
* with multiple selections from one image combined into a single image
* divided All images and selections are written to a single file
* with each selection from one image written to a new image
* image Each input image is written to a new file (numeric filename sequence)
* with multiple selections from the image combined into one image
* multiple Each input image is written to a new file (numeric filename sequence)
* with each selection from the image written to a new image
* separated Individual selections from each image are written to separate files
* -U units [in, cm, px ] inches, centimeters or pixels
* -H # Set horizontal resolution of output images to #
* -V # Set vertical resolution of output images to #
* -J # Horizontal margin of output page to # expressed in current
* units
* -K # Vertical margin of output page to # expressed in current
* units
* -X # Horizontal dimension of region to extract expressed in current
* units
* -Y # Vertical dimension of region to extract expressed in current
* units
* -O orient Orientation for output image, portrait, landscape, auto
* -P page Page size for output image segments, eg letter, legal, tabloid,
* etc.
* -S cols:rows Divide the image into equal sized segments using cols across
* and rows down
* -E t|l|r|b Edge to use as origin
* -m #,#,#,# Margins from edges for selection: top, left, bottom, right
* (commas separated)
* -Z #:#,#:# Zones of the image designated as zone X of Y,
* eg 1:3 would be first of three equal portions measured
* from reference edge
* -N odd|even|#,#-#,#|last
* Select sequences and/or ranges of images within file
* to process. The words odd or even may be used to specify
* all odd or even numbered images the word last may be used
* in place of a number in the sequence to indicate the final
* image in the file without knowing how many images there are.
* -R # Rotate image or crop selection by 90,180,or 270 degrees
* clockwise
* -F h|v Flip (mirror) image or crop selection horizontally
* or vertically
* -I [black|white|data|both]
* Invert color space, eg dark to light for bilevel and grayscale images
* If argument is white or black, set the PHOTOMETRIC_INTERPRETATION
* tag to MinIsBlack or MinIsWhite without altering the image data
* If the argument is data or both, the image data are modified:
* both inverts the data and the PHOTOMETRIC_INTERPRETATION tag,
* data inverts the data but not the PHOTOMETRIC_INTERPRETATION tag
*/
static char tiffcrop_version_id[] = "1.0";
static char tiffcrop_rev_date[] = "05/21/2008";
#include "tif_config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <ctype.h>
#include <limits.h>
#include <assert.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifndef HAVE_GETOPT
extern int getopt(int, char**, char*);
#endif
#include "tiffio.h"
#if defined(VMS)
# define unlink delete
#endif
#ifndef PATH_MAX
#define PATH_MAX 1024
#endif
#define streq(a,b) (strcmp((a),(b)) == 0)
#define strneq(a,b,n) (strncmp((a),(b),(n)) == 0)
/* NB: the uint32 casts are to silence certain ANSI-C compilers */
#define TIFFhowmany(x, y) ((((uint32)(x))+(((uint32)(y))-1))/((uint32)(y)))
#define TIFFhowmany8(x) (((x)&0x07)?((uint32)(x)>>3)+1:(uint32)(x)>>3)
#define TRUE 1
#define FALSE 0
/*
* Definitions and data structures required to support cropping and image
* manipulations.
*/
#define EDGE_TOP 1
#define EDGE_LEFT 2
#define EDGE_BOTTOM 3
#define EDGE_RIGHT 4
#define EDGE_CENTER 5
#define MIRROR_HORIZ 1
#define MIRROR_VERT 2
#define CROP_NONE 0
#define CROP_MARGINS 1
#define CROP_WIDTH 2
#define CROP_LENGTH 4
#define CROP_ZONES 8
#define CROP_REGIONS 16
#define CROP_ROTATE 32
#define CROP_MIRROR 64
#define CROP_INVERT 128
/* Modes for writing out images and selections */
#define ONE_FILE_COMPOSITE 0 /* One file, sections combined sections */
#define ONE_FILE_SEPARATED 1 /* One file, sections to new IFDs */
#define FILE_PER_IMAGE_COMPOSITE 2 /* One file per image, combined sections */
#define FILE_PER_IMAGE_SEPARATED 3 /* One file per input image */
#define FILE_PER_SELECTION 4 /* One file per selection */
#define COMPOSITE_IMAGES 0 /* Selections combined into one image */
#define SEPARATED_IMAGES 1 /* Selections saved to separate images */
#define STRIP 1
#define TILE 2
#define MAX_REGIONS 8 /* number of regions to extract from a single page */
#define MAX_OUTBUFFS 8 /* must match larger of zones or regions */
#define MAX_SECTIONS 32 /* number of sections per page to write to output */
#define MAX_IMAGES 512 /* number of images in descrete list, not in the file */
/* Offsets into buffer for margins and fixed width and length segments */
struct offset {
uint32 tmargin;
uint32 lmargin;
uint32 bmargin;
uint32 rmargin;
uint32 crop_width;
uint32 crop_length;
uint32 startx;
uint32 endx;
uint32 starty;
uint32 endy;
};
/* Description of a zone within the image. Position 1 of 3 zones would be
* the first third of the image. These are computed after margins and
* width/length requests are applied so that you can extract multiple
* zones from within a larger region for OCR or barcode recognition.
*/
struct buffinfo {
uint32 size; /* size of this buffer */
unsigned char *buffer; /* address of the allocated buffer */
};
struct zone {
int position; /* ordinal of segment to be extracted */
int total; /* total equal sized divisions of crop area */
};
struct pageseg {
uint32 x1; /* index of left edge */
uint32 x2; /* index of right edge */
uint32 y1; /* index of top edge */
uint32 y2; /* index of bottom edge */
int position; /* ordinal of segment to be extracted */
int total; /* total equal sized divisions of crop area */
uint32 buffsize; /* size of buffer needed to hold the cropped zone */
};
struct coordpairs {
double X1; /* index of left edge in current units */
double X2; /* index of right edge in current units */
double Y1; /* index of top edge in current units */
double Y2; /* index of bottom edge in current units */
};
struct region {
uint32 x1; /* pixel offset of left edge */
uint32 x2; /* pixel offset of right edge */
uint32 y1; /* pixel offset of top edge */
uint32 y2; /* picel offset of bottom edge */
uint32 width; /* width in pixels */
uint32 length; /* length in pixels */
uint32 buffsize; /* size of buffer needed to hold the cropped region */
unsigned char *buffptr; /* address of start of the region */
};
/* Cropping parameters from command line and image data */
struct crop_mask {
double width; /* Selection width for master crop region in requested units */
double length; /* Selection length for master crop region in requesed units */
double margins[4]; /* Top, left, bottom, right margins */
float xres; /* Horizontal resolution read from image*/
float yres; /* Vertical resolution read from image */
uint32 combined_width; /* Width of combined cropped zones */
uint32 combined_length; /* Length of combined cropped zones */
uint32 bufftotal; /* Size of buffer needed to hold all the cropped region */
uint16 img_mode; /* Composite or separate images created from zones or regions */
uint16 exp_mode; /* Export input images or selections to one or more files */
uint16 crop_mode; /* Crop options to be applied */
uint16 res_unit; /* Resolution unit for margins and selections */
uint16 edge_ref; /* Reference edge for sections extraction and combination */
uint16 rotation; /* Clockwise rotation of the extracted region or image */
uint16 mirror; /* Mirror extracted region or image horizontally or vertically */
uint16 invert; /* Invert the color map of image or region */
uint16 photometric; /* Status of photometric interpretation for inverted image */
uint16 selections; /* Number of regions or zones selected */
uint16 regions; /* Number of regions delimited by corner coordinates */
struct region regionlist[MAX_REGIONS]; /* Regions within page or master crop region */
uint16 zones; /* Number of zones delimited by Ordinal:Total requested */
struct zone zonelist[MAX_REGIONS]; /* Zones indices to define a region */
struct coordpairs corners[MAX_REGIONS]; /* Coordinates of upper left and lower right corner */
};
#define MAX_PAPERNAMES 49
#define MAX_PAPERNAME_LENGTH 15
#define DEFAULT_RESUNIT RESUNIT_INCH
#define DEFAULT_PAGE_HEIGHT 14.0
#define DEFAULT_PAGE_WIDTH 8.5
#define DEFAULT_RESOLUTION 300
#define DEFAULT_PAPER_SIZE "legal"
#define ORIENTATION_NONE 0
#define ORIENTATION_PORTRAIT 1
#define ORIENTATION_LANDSCAPE 2
#define ORIENTATION_SEASCAPE 4
#define ORIENTATION_AUTO 16
#define PAGE_MODE_NONE 0
#define PAGE_MODE_RESOLUTION 1
#define PAGE_MODE_PAPERSIZE 2
#define PAGE_MODE_MARGINS 4
#define PAGE_MODE_ROWSCOLS 8
#define INVERT_DATA_ONLY 10
#define INVERT_DATA_AND_TAG 11
struct paperdef {
char name[MAX_PAPERNAME_LENGTH];
double width;
double length;
double asratio;
};
/* Paper Size Width Length Aspect Ratio */
struct paperdef PaperTable[MAX_PAPERNAMES] = {
{"default", 8.500, 14.000, 0.607},
{"pa4", 8.264, 11.000, 0.751},
{"letter", 8.500, 11.000, 0.773},
{"legal", 8.500, 14.000, 0.607},
{"half-letter", 8.500, 5.514, 1.542},
{"executive", 7.264, 10.528, 0.690},
{"tabloid", 11.000, 17.000, 0.647},
{"11x17", 11.000, 17.000, 0.647},
{"ledger", 17.000, 11.000, 1.545},
{"archa", 9.000, 12.000, 0.750},
{"archb", 12.000, 18.000, 0.667},
{"archc", 18.000, 24.000, 0.750},
{"archd", 24.000, 36.000, 0.667},
{"arche", 36.000, 48.000, 0.750},
{"csheet", 17.000, 22.000, 0.773},
{"dsheet", 22.000, 34.000, 0.647},
{"esheet", 34.000, 44.000, 0.773},
{"superb", 11.708, 17.042, 0.687},
{"commercial", 4.139, 9.528, 0.434},
{"monarch", 3.889, 7.528, 0.517},
{"envelope-dl", 4.333, 8.681, 0.499},
{"envelope-c5", 6.389, 9.028, 0.708},
{"europostcard", 4.139, 5.833, 0.710},
{"a0", 33.111, 46.806, 0.707},
{"a1", 23.389, 33.111, 0.706},
{"a2", 16.542, 23.389, 0.707},
{"a3", 11.694, 16.542, 0.707},
{"a4", 8.264, 11.694, 0.707},
{"a5", 5.833, 8.264, 0.706},
{"a6", 4.125, 5.833, 0.707},
{"a7", 2.917, 4.125, 0.707},
{"a8", 2.056, 2.917, 0.705},
{"a9", 1.458, 2.056, 0.709},
{"a10", 1.014, 1.458, 0.695},
{"b0", 39.375, 55.667, 0.707},
{"b1", 27.833, 39.375, 0.707},
{"b2", 19.681, 27.833, 0.707},
{"b3", 13.903, 19.681, 0.706},
{"b4", 9.847, 13.903, 0.708},
{"b5", 6.931, 9.847, 0.704},
{"b6", 4.917, 6.931, 0.709},
{"c0", 36.097, 51.069, 0.707},
{"c1", 25.514, 36.097, 0.707},
{"c2", 18.028, 25.514, 0.707},
{"c3", 12.750, 18.028, 0.707},
{"c4", 9.014, 12.750, 0.707},
{"c5", 6.375, 9.014, 0.707},
{"c6", 4.486, 6.375, 0.704},
{"", 0.000, 0.000, 1.000},
};
/* Structure to define in input image parameters */
struct image_data {
float xres;
float yres;
uint32 width;
uint32 length;
uint16 res_unit;
uint16 bps;
uint16 spp;
uint16 planar;
uint16 photometric;
};
/* Structure to define the output image modifiers */
struct pagedef {
char name[16];
double width; /* width in pixels */
double length; /* length in pixels */
double hmargin; /* margins to subtract from width of sections */
double vmargin; /* margins to subtract from height of sections */
double hres; /* horizontal resolution for output */
double vres; /* vertical resolution for output */
uint32 mode; /* bitmask of modifiers to page format */
uint16 res_unit; /* resolution unit for output image */
unsigned int rows; /* number of section rows */
unsigned int cols; /* number of section cols */
unsigned int orient; /* portrait, landscape, seascape, auto */
};
/* globals */
static int outtiled = -1;
static uint32 tilewidth;
static uint32 tilelength;
static uint16 config;
static uint16 compression;
static uint16 predictor;
static uint16 fillorder;
static uint16 orientation;
static uint32 rowsperstrip;
static uint32 g3opts;
static int ignore = FALSE; /* if true, ignore read errors */
static uint32 defg3opts = (uint32) -1;
static int quality = 75; /* JPEG quality */
static int jpegcolormode = JPEGCOLORMODE_RGB;
static uint16 defcompression = (uint16) -1;
static uint16 defpredictor = (uint16) -1;
static int pageNum = 0;
static int processCompressOptions(char*);
static void usage(void);
/* New functions by Richard Nolde not found in tiffcp */
static void initImageData (struct image_data *);
static void initCropMasks (struct crop_mask *);
static void initPageSetup (struct pagedef *, struct pageseg *, struct buffinfo []);
static int get_page_geometry (char *, struct pagedef*);
static int computeInputPixelOffsets(struct crop_mask *, struct image_data *,
struct offset *);
static int computeOutputPixelOffsets (struct crop_mask *, struct image_data *,
struct pagedef *, struct pageseg *);
static int loadImage(TIFF *, struct image_data *, unsigned char **);
static int getCropOffsets(struct image_data *, struct crop_mask *);
static int processCropSelections(struct image_data *, struct crop_mask *,
unsigned char **, struct buffinfo []);
static int writeSelections(TIFF *, TIFF **, struct crop_mask *,
struct buffinfo [], char *, char *,
unsigned int*, unsigned int);
static int extractSeparateRegion(struct image_data *, struct crop_mask *,
unsigned char *, unsigned char *, int);
static int extractCompositeRegions(struct image_data *, struct crop_mask *,
unsigned char *, unsigned char *);
/* Section functions */
static int createImageSection(uint32, unsigned char **);
static int extractImageSection(struct image_data *, struct pageseg *,
unsigned char *, unsigned char *);
static int writeSingleSection(TIFF *, TIFF *, uint32, uint32,
double, double, unsigned char *);
static int writeImageSections(TIFF *, TIFF *, struct image_data *,
struct pagedef *, struct pageseg *,
unsigned char *, unsigned char **);
/* Whole image functions */
static int createCroppedImage(struct image_data *, struct crop_mask *,
unsigned char **, unsigned char **);
static int writeCroppedImage(TIFF *, TIFF *, uint32, uint32,
unsigned char *, int, int);
/* Image manipulation functions */
static int rotateImage(uint16, struct image_data *, uint32 *, uint32 *,
unsigned char **);
static int mirrorImage(uint16, uint16, uint16, uint32, uint32,
unsigned char *);
static int invertImage(uint16, uint16, uint16, uint32, uint32,
unsigned char *);
void process_command_opts (int, char *[], char *, char *, uint32 *,
uint16 *, uint16 *, uint32 *, uint32 *, uint32 *,
struct crop_mask *, struct pagedef *,
unsigned int *, unsigned int *);
static int update_output_file (TIFF **, char *, int, char *, unsigned int *);
/* End function declarations */
void process_command_opts (int argc, char *argv[], char *mp, char *mode, uint32 *dirnum,
uint16 *defconfig, uint16 *deffillorder, uint32 *deftilewidth,
uint32 *deftilelength, uint32 *defrowsperstrip,
struct crop_mask *crop_data, struct pagedef *page,
unsigned int *imagelist, unsigned int *image_count )
{
int c;
char *opt_offset = NULL; /* Position in string of value sought */
char *opt_ptr = NULL; /* Pointer to next token in option set */
char *sep = NULL; /* Pointer to a token separator */
unsigned int i, j, start, end;
extern int optind;
extern char* optarg;
*mp++ = 'w';
*mp = '\0';
while ((c = getopt(argc, argv,
"ac:d:e:f:hil:m:p:r:st:vw:z:BCE:F:H:I:J:K:LMN:O:P:R:S:U:V:X:Y:Z:")) != -1)
switch (c) {
case 'a': mode[0] = 'a'; /* append to output */
break;
case 'c': if (!processCompressOptions(optarg)) /* compression scheme */
usage();
break;
case 'd': *dirnum = strtoul(optarg, NULL, 0); /* initial IFD offset */
break;
case 'e': switch (tolower(optarg[0])) /* image export modes*/
{
case 'c': crop_data->exp_mode = ONE_FILE_COMPOSITE;
crop_data->img_mode = COMPOSITE_IMAGES;
break; /* Composite */
case 'd': crop_data->exp_mode = ONE_FILE_SEPARATED;
crop_data->img_mode = SEPARATED_IMAGES;
break; /* Divided */
case 'i': crop_data->exp_mode = FILE_PER_IMAGE_COMPOSITE;
crop_data->img_mode = COMPOSITE_IMAGES;
break; /* Image */
case 'm': crop_data->exp_mode = FILE_PER_IMAGE_SEPARATED;
crop_data->img_mode = SEPARATED_IMAGES;
break; /* Multiple */
case 's': crop_data->exp_mode = FILE_PER_SELECTION;
crop_data->img_mode = SEPARATED_IMAGES;
break; /* Sections */
default: usage();
}
break;
case 'f': if (streq(optarg, "lsb2msb")) /* fill order */
*deffillorder = FILLORDER_LSB2MSB;
else if (streq(optarg, "msb2lsb"))
*deffillorder = FILLORDER_MSB2LSB;
else
usage();
break;
case 'h': usage();
break;
case 'i': ignore = TRUE; /* ignore errors */
break;
case 'l': outtiled = TRUE; /* tile length */
*deftilelength = atoi(optarg);
break;
case 'p': /* planar configuration */
if (streq(optarg, "separate"))
*defconfig = PLANARCONFIG_SEPARATE;
else if (streq(optarg, "contig"))
*defconfig = PLANARCONFIG_CONTIG;
else
usage();
break;
case 'r': /* rows/strip */
*defrowsperstrip = atol(optarg);
break;
case 's': /* generate stripped output */
outtiled = FALSE;
break;
case 't': /* generate tiled output */
outtiled = TRUE;
break;
case 'v': printf ("Tiffcrop version %s, last updated: %s\n",
tiffcrop_version_id, tiffcrop_rev_date);
exit (0);
break;
case 'w': /* tile width */
outtiled = TRUE;
*deftilewidth = atoi(optarg);
break;
case 'z': /* regions of an image specified as x1,y1,x2,y2:x3,y3,x4,y4 etc */
crop_data->crop_mode |= CROP_REGIONS;
for (i = 0, opt_ptr = strtok (optarg, ":");
((opt_ptr != NULL) && (i < MAX_REGIONS));
(opt_ptr = strtok (NULL, ":")), i++)
{
crop_data->regions++;
if (sscanf(opt_ptr, "%lf,%lf,%lf,%lf",
&crop_data->corners[i].X1, &crop_data->corners[i].Y1,
&crop_data->corners[i].X2, &crop_data->corners[i].Y2) != 4)
{
TIFFError ("process_command_opts", "Unable to parse coordinates for region %d", i);
exit (-1);
}
}
/* check for remaining elements over MAX_REGIONS */
if ((opt_ptr != NULL) && (i >= MAX_REGIONS))
{
TIFFError ("process_command_opts", "Region list exceeds limit of %d regions\n", MAX_REGIONS);
exit (-1);
}
break;
/* options for file open modes */
case 'B': *mp++ = 'b'; *mp = '\0';
break;
case 'L': *mp++ = 'l'; *mp = '\0';
break;
case 'M': *mp++ = 'm'; *mp = '\0';
break;
case 'C': *mp++ = 'c'; *mp = '\0';
break;
/* image manipulation routine options */
case 'm': /* margins to exclude from selection, uppercase M was already used */
/* order of values must be TOP, LEFT, BOTTOM, RIGHT */
crop_data->crop_mode |= CROP_MARGINS;
for (i = 0, opt_ptr = strtok (optarg, ",:");
((opt_ptr != NULL) && (i < 4));
(opt_ptr = strtok (NULL, ",:")), i++)
{
crop_data->margins[i] = atof(opt_ptr);
}
break;
case 'E': /* edge reference */
switch (tolower(optarg[0]))
{
case 't': crop_data->edge_ref = EDGE_TOP;
break;
case 'b': crop_data->edge_ref = EDGE_BOTTOM;
break;
case 'l': crop_data->edge_ref = EDGE_LEFT;
break;
case 'r': crop_data->edge_ref = EDGE_RIGHT;
break;
default: TIFFError ("process_command_opts", "Edge reference must be top, bottom, left, or right.\n");
usage();
}
break;
case 'F': /* flip eg mirror image or cropped segment, M was already used */
crop_data->crop_mode |= CROP_MIRROR;
switch (tolower(optarg[0]))
{
case 'h': crop_data->mirror = MIRROR_HORIZ;
break;
case 'v': crop_data->mirror = MIRROR_VERT;
break;
default: TIFFError ("process_command_opts", "Flip mode must be h or v.\n");
usage();
}
break;
case 'H': /* set horizontal resolution to new value */
page->hres = atof (optarg);
page->mode |= PAGE_MODE_RESOLUTION;
break;
case 'I': /* invert the color space, eg black to white */
crop_data->crop_mode |= CROP_INVERT;
/* The PHOTOMETIC_INTERPRETATION tag may be updated */
if (streq(optarg, "black"))
{
crop_data->photometric = PHOTOMETRIC_MINISBLACK;
continue;
}
if (streq(optarg, "white"))
{
crop_data->photometric = PHOTOMETRIC_MINISWHITE;
continue;
}
if (streq(optarg, "data"))
{
crop_data->photometric = INVERT_DATA_ONLY;
continue;
}
if (streq(optarg, "both"))
{
crop_data->photometric = INVERT_DATA_AND_TAG;
continue;
}
TIFFError("process_command_opts",
"Missing or unknown option for inverting PHOTOMETRIC_INTERPRETATION");
usage();
break;
case 'J': /* horizontal margin for sectioned ouput pages */
page->hmargin = atof(optarg);
page->mode |= PAGE_MODE_MARGINS;
break;
case 'K': /* vertical margin for sectioned ouput pages*/
page->vmargin = atof(optarg);
page->mode |= PAGE_MODE_MARGINS;
break;
case 'N': /* list of images to process */
for (i = 0, opt_ptr = strtok (optarg, ",");
((opt_ptr != NULL) && (i < MAX_IMAGES));
(opt_ptr = strtok (NULL, ",")))
{ /* We do not know how many images are in file yet
* so we build a list to include the maximum allowed
* and follow it until we hit the end of the file.
* Image count is not accurate for odd, even, last
* so page numbers won't be valid either.
*/
if (streq(opt_ptr, "odd"))
{
for (j = 1; j <= MAX_IMAGES; j += 2)
imagelist[i++] = j;
*image_count = (MAX_IMAGES - 1) / 2;
break;
}
else
{
if (streq(opt_ptr, "even"))
{
for (j = 2; j <= MAX_IMAGES; j += 2)
imagelist[i++] = j;
*image_count = MAX_IMAGES / 2;
break;
}
else
{
if (streq(opt_ptr, "last"))
imagelist[i++] = MAX_IMAGES;
else /* single value between commas */
{
sep = strpbrk(opt_ptr, ":-");
if (!sep)
imagelist[i++] = atoi(opt_ptr);
else
{
*sep = '\0';
start = atoi (opt_ptr);
if (!strcmp((sep + 1), "last"))
end = MAX_IMAGES;
else
end = atoi (sep + 1);
for (j = start; j <= end && j - start + i < MAX_IMAGES; j++)
imagelist[i++] = j;
}
}
}
}
}
*image_count = i;
break;
case 'O': /* page orientation */
switch (tolower(optarg[0]))
{
case 'a': page->orient = ORIENTATION_AUTO;
break;
case 'p': page->orient = ORIENTATION_PORTRAIT;
break;
case 'l': page->orient = ORIENTATION_LANDSCAPE;
break;
default: TIFFError ("process_command_opts",
"Orientation must be portrait, landscape, or auto.\n\n");
usage();
}
break;
case 'P': /* page size selection */
if (get_page_geometry (optarg, page))
{
if (!strcmp(optarg, "list"))
{
fprintf(stderr, "Name Width Length (in inches)\n");
for (i = 0; i < MAX_PAPERNAMES - 1; i++)
fprintf (stderr, "%-15.15s %5.2f %5.2f%s",
PaperTable[i].name, PaperTable[i].width,
PaperTable[i].length, i % 2 ? " " : "\n");
fprintf (stderr, "\n\n");
exit (-1);
}
fprintf (stderr, "Invalid paper size %s\n\n", optarg);
fprintf (stderr, "Select one of:\n");
for (i = 0; i < MAX_PAPERNAMES; i++)
fprintf (stderr, "%-15.15s%s", PaperTable[i].name, i % 5 ? " " : "\n");
fprintf (stderr, "\n\n");
exit (-1);
}
else
{
page->mode |= PAGE_MODE_PAPERSIZE;
}
break;
case 'R': /* rotate image or cropped segment */
crop_data->crop_mode |= CROP_ROTATE;
switch (strtoul(optarg, NULL, 0))
{
case 90: crop_data->rotation = (uint16)90;
break;
case 180: crop_data->rotation = (uint16)180;
break;
case 270: crop_data->rotation = (uint16)270;
break;
default: TIFFError ("process_command_opts",
"Rotation must be 90, 180, or 270 degrees clockwise.\n\n");
usage();
}
break;
case 'S': /* subdivide into Cols:Rows sections, eg 3:2 would be 3 across and 2 down */
sep = strpbrk(optarg, ",:");
if (sep)
{
*sep = '\0';
page->cols = atoi(optarg);
page->rows = atoi(sep +1);
}
else
{
page->cols = atoi(optarg);
page->rows = atoi(optarg);
}
if ((page->cols * page->rows) > MAX_SECTIONS)
{
TIFFError ("process_command_opts",
"Limit of %d subdivisions, ie rows x columns, exceeded\n", MAX_SECTIONS);
exit (-1);
}
page->mode |= PAGE_MODE_ROWSCOLS;
break;
case 'U': /* units for measurements and offsets */
if (streq(optarg, "in"))
{
crop_data->res_unit = RESUNIT_INCH;
page->res_unit = RESUNIT_INCH;
}
else if (streq(optarg, "cm"))
{
crop_data->res_unit = RESUNIT_CENTIMETER;
page->res_unit = RESUNIT_CENTIMETER;
}
else if (streq(optarg, "px"))
{
crop_data->res_unit = RESUNIT_NONE;
page->res_unit = RESUNIT_NONE;
}
else
{
TIFFError ("process_command_opts",
"Illegal unit of measure: %s\n\n", optarg);
usage();
}
break;
case 'V': /* set vertical resolution to new value */
page->vres = atof (optarg);
page->mode |= PAGE_MODE_RESOLUTION;
break;
case 'X': /* selection width */
crop_data->crop_mode |= CROP_WIDTH;
crop_data->width = atof(optarg);
break;
case 'Y': /* selection length */
crop_data->crop_mode |= CROP_LENGTH;
crop_data->length = atof(optarg);
break;
case 'Z': /* zones of an image X:Y read as zone X of Y */
crop_data->crop_mode |= CROP_ZONES;
for (i = 0, opt_ptr = strtok (optarg, ",");
((opt_ptr != NULL) && (i < MAX_REGIONS));
(opt_ptr = strtok (NULL, ",")), i++)
{
crop_data->zones++;
opt_offset = strchr(opt_ptr, ':');
*opt_offset = '\0';
crop_data->zonelist[i].position = atoi(opt_ptr);
crop_data->zonelist[i].total = atoi(opt_offset + 1);
}
/* check for remaining elements over MAX_REGIONS */
if ((opt_ptr != NULL) && (i >= MAX_REGIONS))
{
TIFFError("process_command_opts",
"Zone list exceed limit of %d regions\n", MAX_REGIONS);
exit (-1);
}
break;
case '?': usage();
/*NOTREACHED*/
}
} /* end process_command_opts */
/* Start a new output file if one has not been previously opened or
* autoindex is set to non-zero. Update page and file counters
* so TIFFTAG PAGENUM will be correct in image.
*/
static int
update_output_file (TIFF **tiffout, char *mode, int autoindex,
char *outname, unsigned int *page)
{
static int findex = 0; /* file sequence indicator */
char *sep;
char filenum[16];
char export_ext[6];
char exportname[PATH_MAX];
if (autoindex && (*tiffout != NULL))
{
/* Close any export file that was previously opened */
TIFFClose (*tiffout);
*tiffout = NULL;
}
strncpy (exportname, outname, PATH_MAX - 15);
if (*tiffout == NULL) /* This is a new export file */
{
if (autoindex)
{ /* create a new filename for each export */
findex++;
if ((sep = strstr(exportname, ".tif")) || (sep = strstr(exportname, ".TIF")))
{
strncpy (export_ext, sep, 5);
*sep = '\0';
}
else
{ /* find file name in path */
if ((sep = strrchr(exportname, '/'))|| (sep = strstr(exportname, "\\")))
{
if ((sep = strrchr(sep, '.'))) /* possible file type extension */
{
strncpy (export_ext, sep, 5);
*sep = '\0';
}
}
else
strncpy (export_ext, ".tiff", 5);
}
export_ext[5] = '\0';
sprintf (filenum, "-%03d%s", findex, export_ext);
filenum[15] = '\0';
strncat (exportname, filenum, 14);
}
*tiffout = TIFFOpen(exportname, mode);
if (*tiffout == NULL)
{
TIFFError("update_output_file", "Unable to open output file %s\n", exportname);
return (1);
}
*page = 0;
return (0);
}
else
(*page)++;
return (0);
} /* end update_output_file */
int
main(int argc, char* argv[])
{
uint16 defconfig = (uint16) -1;
uint16 deffillorder = 0;
uint32 deftilewidth = (uint32) -1;
uint32 deftilelength = (uint32) -1;
uint32 defrowsperstrip = (uint32) 0;
uint32 dirnum = 0;
TIFF *in = NULL;
TIFF *out = NULL;
char mode[10];
char *mp = mode;
/** RJN additions **/
int seg;
struct image_data image; /* Image parameters for one image */
struct crop_mask crop; /* Cropping parameters for all images */
struct pagedef page; /* Page definition for output pages */
struct pageseg sections[MAX_SECTIONS]; /* Sections of one output page */
struct buffinfo seg_buffs[MAX_SECTIONS]; /* Segment buffer sizes and pointers */
unsigned char *read_buff = NULL; /* Input image data buffer */
unsigned char *crop_buff = NULL; /* Crop area buffer */
unsigned char *sect_buff = NULL; /* Image section buffer */
unsigned char *sect_src = NULL; /* Image section buffer pointer */
unsigned int imagelist[MAX_IMAGES + 1]; /* individually specified images */
unsigned int image_count = 0;
unsigned int next_image = 0;
unsigned int next_page = 0;
unsigned int total_pages = 0;
unsigned int total_images = 0;
unsigned int end_of_input = FALSE;
extern int optind;
extern char* optarg;
initImageData(&image);
initCropMasks(&crop);
initPageSetup(&page, sections, seg_buffs);
process_command_opts (argc, argv, mp, mode, &dirnum, &defconfig,
&deffillorder, &deftilewidth, &deftilelength, &defrowsperstrip,
&crop, &page, imagelist, &image_count);
if (argc - optind < 2)
usage();
if ((argc - optind) == 2)
pageNum = -1;
else
total_images = 0;
/* read multiple input files and write to output file(s) */
while (optind < argc - 1)
{
in = TIFFOpen (argv[optind], "r");
if (in == NULL)
return (-3);
/* If only one input file is specified, we can use directory count */
total_images = TIFFNumberOfDirectories(in);
if (image_count == 0)
{
dirnum = 0;
total_pages = total_images; /* Only valid with single input file */
}
else
{
dirnum = (tdir_t)(imagelist[next_image] - 1);
next_image++;
/* Total pages only valid for enumerated list of pages not derived
* using odd, even, or last keywords.
*/
if (image_count > total_images)
image_count = total_images;
total_pages = image_count;
}
if (dirnum == (MAX_IMAGES - 1))
dirnum = TIFFNumberOfDirectories(in) - 1;
if (dirnum != 0 && !TIFFSetDirectory(in, (tdir_t)dirnum))
{
TIFFError(TIFFFileName(in),"Error, setting subdirectory at %#x", dirnum);
(void) TIFFClose(out);
return (1);
}
end_of_input = FALSE;
while (end_of_input == FALSE)
{
config = defconfig;
compression = defcompression;
predictor = defpredictor;
fillorder = deffillorder;
rowsperstrip = defrowsperstrip;
tilewidth = deftilewidth;
tilelength = deftilelength;
g3opts = defg3opts;
if (loadImage(in, &image, &read_buff))
{
TIFFError("main", "Unable to load source image");
exit (-1);
}
if (getCropOffsets(&image, &crop))
{
TIFFError("main", "Unable to define crop regions");
exit (-1);
}
if (crop.selections > 0)
{
if (processCropSelections(&image, &crop, &read_buff, seg_buffs))
{
TIFFError("main", "Unable to process image selections");
exit (-1);
}
}
else /* Single image segment without zones or regions */
{
if (createCroppedImage(&image, &crop, &read_buff, &crop_buff))
{
TIFFError("main", "Unable to create output image");
exit (-1);
}
}
if (page.mode == PAGE_MODE_NONE)
{ /* Whole image or sections not based on output page size */
if (crop.selections > 0)
{
writeSelections(in, &out, &crop, seg_buffs, mp, argv[argc - 1], &next_page, total_pages);
}
else /* One file all images and sections */
{
if (update_output_file (&out, mp, crop.exp_mode, argv[argc - 1],
&next_page))
exit (1);
if (writeCroppedImage(in, out, crop.combined_width,
crop.combined_length,
crop_buff, next_page, total_pages))
{
TIFFError("main", "Unable to write new image");
exit (-1);
}
}
}
else
{ /* Break input image into pages or rows and columns */
if (crop.crop_mode == CROP_NONE)
sect_src = read_buff;
else
sect_src = crop_buff;
if (computeOutputPixelOffsets(&crop, &image, &page, sections))
{
TIFFError("main", "Unable to compute output section data");
exit (-1);
}
if (update_output_file (&out, mp, crop.exp_mode, argv[argc - 1], &next_page))
exit (1);
if (writeImageSections(in, out, &image, &page, sections, sect_src, &sect_buff))
{
TIFFError("main", "Unable to write image sections");
exit (-1);
}
}
/* No image list specified, just read the next image */
if (image_count == 0)
dirnum++;
else
{
dirnum = (tdir_t)(imagelist[next_image] - 1);
next_image++;
}
if (dirnum == MAX_IMAGES - 1)
dirnum = TIFFNumberOfDirectories(in) - 1;
if (!TIFFSetDirectory(in, (tdir_t)dirnum))
end_of_input = TRUE;;
}
TIFFClose(in);
optind++;
}
/* If we did not use the read buffer as the crop buffer */
if (read_buff)
_TIFFfree(read_buff);
if (crop_buff)
_TIFFfree(crop_buff);
if (sect_buff)
_TIFFfree(sect_buff);
/* Clean up any segment buffers used for zones or regions */
for (seg = 0; seg < crop.selections; seg++)
_TIFFfree (seg_buffs[seg].buffer);
TIFFClose(out);
return (0);
}
static void
processG3Options(char* cp)
{
if( (cp = strchr(cp, ':')) ) {
if (defg3opts == (uint32) -1)
defg3opts = 0;
do {
cp++;
if (strneq(cp, "1d", 2))
defg3opts &= ~GROUP3OPT_2DENCODING;
else if (strneq(cp, "2d", 2))
defg3opts |= GROUP3OPT_2DENCODING;
else if (strneq(cp, "fill", 4))
defg3opts |= GROUP3OPT_FILLBITS;
else
usage();
} while( (cp = strchr(cp, ':')) );
}
}
static int
processCompressOptions(char* opt)
{
if (streq(opt, "none")) {
defcompression = COMPRESSION_NONE;
} else if (streq(opt, "packbits")) {
defcompression = COMPRESSION_PACKBITS;
} else if (strneq(opt, "jpeg", 4)) {
char* cp = strchr(opt, ':');
defcompression = COMPRESSION_JPEG;
while( cp )
{
if (isdigit((int)cp[1]))
quality = atoi(cp+1);
else if (cp[1] == 'r' )
jpegcolormode = JPEGCOLORMODE_RAW;
else
usage();
cp = strchr(cp+1,':');
}
} else if (strneq(opt, "g3", 2)) {
processG3Options(opt);
defcompression = COMPRESSION_CCITTFAX3;
} else if (streq(opt, "g4")) {
defcompression = COMPRESSION_CCITTFAX4;
} else if (strneq(opt, "lzw", 3)) {
char* cp = strchr(opt, ':');
if (cp)
defpredictor = atoi(cp+1);
defcompression = COMPRESSION_LZW;
} else if (strneq(opt, "zip", 3)) {
char* cp = strchr(opt, ':');
if (cp)
defpredictor = atoi(cp+1);
defcompression = COMPRESSION_ADOBE_DEFLATE;
} else
return (0);
return (1);
}
char* stuff[] = {
"usage: tiffcrop [options] input output",
"where options are:",
" -h print this syntax listing",
" -v print tiffcrop version identifier and last revision date",
" ",
" -a append to output instead of overwriting",
" -d offset set initial directory offset",
" -p contig pack samples contiguously (e.g. RGBRGB...)",
" -p separate store samples separately (e.g. RRR...GGG...BBB...)",
" -s write output in strips",
" -t write output in tiles",
" -i ignore read errors",
" ",
" -r # make each strip have no more than # rows",
" -w # set output tile width (pixels)",
" -l # set output tile length (pixels)",
" ",
" -f lsb2msb force lsb-to-msb FillOrder for output",
" -f msb2lsb force msb-to-lsb FillOrder for output",
"",
" -c lzw[:opts] compress output with Lempel-Ziv & Welch encoding",
" -c zip[:opts] compress output with deflate encoding",
" -c jpeg[:opts] compress output with JPEG encoding",
" -c packbits compress output with packbits encoding",
" -c g3[:opts] compress output with CCITT Group 3 encoding",
" -c g4 compress output with CCITT Group 4 encoding",
" -c none use no compression algorithm on output",
" ",
"Group 3 options:",
" 1d use default CCITT Group 3 1D-encoding",
" 2d use optional CCITT Group 3 2D-encoding",
" fill byte-align EOL codes",
"For example, -c g3:2d:fill to get G3-2D-encoded data with byte-aligned EOLs",
" ",
"JPEG options:",
" # set compression quality level (0-100, default 75)",
" r output color image as RGB rather than YCbCr",
"For example, -c jpeg:r:50 to get JPEG-encoded RGB data with 50% comp. quality",
" ",
"LZW and deflate options:",
" # set predictor value",
"For example, -c lzw:2 to get LZW-encoded data with horizontal differencing",
" ",
"Page and selection options:",
" -N odd|even|#,#-#,#|last sequences and ranges of images within file to process",
" the words odd or even may be used to specify all odd or even numbered images",
" the word last may be used in place of a number in the sequence to indicate",
" the final image in the file without knowing how many images there are",
" ",
" -E t|l|r|b edge to use as origin for width and length of crop region",
" -U units [in, cm, px ] inches, centimeters or pixels",
" ",
" -m #,#,#,# margins from edges for selection: top, left, bottom, right separated by commas",
" -X # horizontal dimension of region to extract expressed in current units",
" -Y # vertical dimension of region to extract expressed in current units",
" -Z #:#,#:# zones of the image designated as position X of Y,",
" eg 1:3 would be first of three equal portions measured from reference edge",
" -z x1,y1,x2,y2:...:xN,yN,xN+1,yN+1",
" regions of the image designated by upper left and lower right coordinates",
"",
"Export grouping options:",
" -e c|d|i|m|s export mode for images and selections from input images.",
" When exporting a composite image from multiple zones or regions",
" (combined and image modes), the selections must have equal sizes",
" for the axis perpendicular to the edge specified with -E ",
" c|combined All images and selections are written to a single file (default)",
" with multiple selections from one image combined into a single image",
" d|divided All images and selections are written to a single file",
" with each selection from one image written to a new image",
" i|image Each input image is written to a new file (numeric filename sequence)",
" with multiple selections from the image combined into one image",
" m|multiple Each input image is written to a new file (numeric filename sequence)",
" with each selection from the image written to a new image",
" s|separated Individual selections from each image are written to separate files",
"",
"Output options:",
" -H # set horizontal resolution of output images to #",
" -V # set vertical resolution of output images to #",
" -J # set horizontal margin of output page to # expressed in current units",
" -K # set verticalal margin of output page to # expressed in current units",
" ",
" -O orient orientation for output image, portrait, landscape, auto",
" -P page page size for output image segments, eg letter, legal, tabloid, etc",
" -S cols:rows divide the image into equal sized segments using cols across and rows down",
" ",
" -F h|v flip ie mirror image or extracted region horizontally or vertically",
" -R # [90,180,or 270] degrees clockwise rotation of image or extracted region",
" -I [black|white|data|both]",
" invert color space, eg dark to light for bilevel and grayscale images",
" If argument is white or black, set the PHOTOMETRIC_INTERPRETATION ",
" tag to MinIsBlack or MinIsWhite without altering the image data",
" If the argument is data or both, the image data are modified:",
" both inverts the data and the PHOTOMETRIC_INTERPRETATION tag,",
" data inverts the data but not the PHOTOMETRIC_INTERPRETATION tag",
" ",
" Note that images to process may be specified with -d # to process all",
"beginning at image # (numbering from zero) or by the -N option with a comma",
"separated list of images (numbered from one) which may include the word last or",
"the words odd or even to process all the odd or even numbered images",
" ",
"For example, -N 1,5-7,last to process the 1st, 5th through 7th, and final image",
NULL
};
static void
usage(void)
{
char buf[BUFSIZ];
int i;
setbuf(stderr, buf);
fprintf(stderr, "\n%s\n\n", TIFFGetVersion());
for (i = 0; stuff[i] != NULL; i++)
fprintf(stderr, "%s\n", stuff[i]);
exit(-1);
}
#define CopyField(tag, v) \
if (TIFFGetField(in, tag, &v)) TIFFSetField(out, tag, v)
#define CopyField2(tag, v1, v2) \
if (TIFFGetField(in, tag, &v1, &v2)) TIFFSetField(out, tag, v1, v2)
#define CopyField3(tag, v1, v2, v3) \
if (TIFFGetField(in, tag, &v1, &v2, &v3)) TIFFSetField(out, tag, v1, v2, v3)
#define CopyField4(tag, v1, v2, v3, v4) \
if (TIFFGetField(in, tag, &v1, &v2, &v3, &v4)) TIFFSetField(out, tag, v1, v2, v3, v4)
static void
cpTag(TIFF* in, TIFF* out, uint16 tag, uint16 count, TIFFDataType type)
{
switch (type) {
case TIFF_SHORT:
if (count == 1) {
uint16 shortv;
CopyField(tag, shortv);
} else if (count == 2) {
uint16 shortv1, shortv2;
CopyField2(tag, shortv1, shortv2);
} else if (count == 4) {
uint16 *tr, *tg, *tb, *ta;
CopyField4(tag, tr, tg, tb, ta);
} else if (count == (uint16) -1) {
uint16 shortv1;
uint16* shortav;
CopyField2(tag, shortv1, shortav);
}
break;
case TIFF_LONG:
{ uint32 longv;
CopyField(tag, longv);
}
break;
case TIFF_RATIONAL:
if (count == 1) {
float floatv;
CopyField(tag, floatv);
} else if (count == (uint16) -1) {
float* floatav;
CopyField(tag, floatav);
}
break;
case TIFF_ASCII:
{ char* stringv;
CopyField(tag, stringv);
}
break;
case TIFF_DOUBLE:
if (count == 1) {
double doublev;
CopyField(tag, doublev);
} else if (count == (uint16) -1) {
double* doubleav;
CopyField(tag, doubleav);
}
break;
default:
TIFFError(TIFFFileName(in),
"Data type %d is not supported, tag %d skipped.",
tag, type);
}
}
static struct cpTag {
uint16 tag;
uint16 count;
TIFFDataType type;
} tags[] = {
{ TIFFTAG_SUBFILETYPE, 1, TIFF_LONG },
{ TIFFTAG_THRESHHOLDING, 1, TIFF_SHORT },
{ TIFFTAG_DOCUMENTNAME, 1, TIFF_ASCII },
{ TIFFTAG_IMAGEDESCRIPTION, 1, TIFF_ASCII },
{ TIFFTAG_MAKE, 1, TIFF_ASCII },
{ TIFFTAG_MODEL, 1, TIFF_ASCII },
{ TIFFTAG_MINSAMPLEVALUE, 1, TIFF_SHORT },
{ TIFFTAG_MAXSAMPLEVALUE, 1, TIFF_SHORT },
{ TIFFTAG_XRESOLUTION, 1, TIFF_RATIONAL },
{ TIFFTAG_YRESOLUTION, 1, TIFF_RATIONAL },
{ TIFFTAG_PAGENAME, 1, TIFF_ASCII },
{ TIFFTAG_XPOSITION, 1, TIFF_RATIONAL },
{ TIFFTAG_YPOSITION, 1, TIFF_RATIONAL },
{ TIFFTAG_RESOLUTIONUNIT, 1, TIFF_SHORT },
{ TIFFTAG_SOFTWARE, 1, TIFF_ASCII },
{ TIFFTAG_DATETIME, 1, TIFF_ASCII },
{ TIFFTAG_ARTIST, 1, TIFF_ASCII },
{ TIFFTAG_HOSTCOMPUTER, 1, TIFF_ASCII },
{ TIFFTAG_WHITEPOINT, (uint16) -1, TIFF_RATIONAL },
{ TIFFTAG_PRIMARYCHROMATICITIES,(uint16) -1,TIFF_RATIONAL },
{ TIFFTAG_HALFTONEHINTS, 2, TIFF_SHORT },
{ TIFFTAG_INKSET, 1, TIFF_SHORT },
{ TIFFTAG_DOTRANGE, 2, TIFF_SHORT },
{ TIFFTAG_TARGETPRINTER, 1, TIFF_ASCII },
{ TIFFTAG_SAMPLEFORMAT, 1, TIFF_SHORT },
{ TIFFTAG_YCBCRCOEFFICIENTS, (uint16) -1,TIFF_RATIONAL },
{ TIFFTAG_YCBCRSUBSAMPLING, 2, TIFF_SHORT },
{ TIFFTAG_YCBCRPOSITIONING, 1, TIFF_SHORT },
{ TIFFTAG_REFERENCEBLACKWHITE, (uint16) -1,TIFF_RATIONAL },
{ TIFFTAG_EXTRASAMPLES, (uint16) -1, TIFF_SHORT },
{ TIFFTAG_SMINSAMPLEVALUE, 1, TIFF_DOUBLE },
{ TIFFTAG_SMAXSAMPLEVALUE, 1, TIFF_DOUBLE },
{ TIFFTAG_STONITS, 1, TIFF_DOUBLE },
};
#define NTAGS (sizeof (tags) / sizeof (tags[0]))
#define CopyTag(tag, count, type) cpTag(in, out, tag, count, type)
typedef int (*copyFunc)
(TIFF* in, TIFF* out, uint32 l, uint32 w, uint16 samplesperpixel);
/*
* Copy Functions.
*/
#define DECLAREcpFunc(x) \
static int x(TIFF* in, TIFF* out, \
uint32 imagelength, uint32 imagewidth, tsample_t spp)
#define DECLAREreadFunc(x) \
static int x(TIFF* in, \
uint8* buf, uint32 imagelength, uint32 imagewidth, tsample_t spp)
typedef int (*readFunc)(TIFF*, uint8*, uint32, uint32, tsample_t);
#define DECLAREwriteFunc(x) \
static int x(TIFF* out, \
uint8* buf, uint32 imagelength, uint32 imagewidth, tsample_t spp)
typedef int (*writeFunc)(TIFF*, uint8*, uint32, uint32, tsample_t);
static void
cpStripToTile(uint8* out, uint8* in,
uint32 rows, uint32 cols, int outskew, int inskew)
{
while (rows-- > 0) {
uint32 j = cols;
while (j-- > 0)
*out++ = *in++;
out += outskew;
in += inskew;
}
}
static void
cpContigBufToSeparateBuf(uint8* out, uint8* in,
uint32 rows, uint32 cols, int outskew, int inskew, tsample_t spp,
int bytes_per_sample )
{
while (rows-- > 0) {
uint32 j = cols;
while (j-- > 0)
{
int n = bytes_per_sample;
while( n-- ) {
*out++ = *in++;
}
in += (spp-1) * bytes_per_sample;
}
out += outskew;
in += inskew;
}
}
static void
cpSeparateBufToContigBuf(uint8* out, uint8* in,
uint32 rows, uint32 cols, int outskew, int inskew, tsample_t spp,
int bytes_per_sample)
{
while (rows-- > 0) {
uint32 j = cols;
while (j-- > 0) {
int n = bytes_per_sample;
while( n-- ) {
*out++ = *in++;
}
out += (spp-1)*bytes_per_sample;
}
out += outskew;
in += inskew;
}
}
DECLAREreadFunc(readContigStripsIntoBuffer)
{
tsize_t scanlinesize = TIFFScanlineSize(in);
uint8* bufp = buf;
uint32 row;
(void) imagewidth; (void) spp;
for (row = 0; row < imagelength; row++) {
if (TIFFReadScanline(in, (tdata_t) bufp, row, 0) < 0
&& !ignore) {
TIFFError(TIFFFileName(in),
"Error, can't read scanline %lu",
(unsigned long) row);
return 0;
}
bufp += scanlinesize;
}
return 1;
}
DECLAREreadFunc(readSeparateStripsIntoBuffer)
{
int status = 1;
tsize_t scanlinesize = TIFFScanlineSize(in);
tdata_t scanline = _TIFFmalloc(scanlinesize);
if (!scanlinesize)
return 0;
(void) imagewidth;
if (scanline) {
uint8* bufp = (uint8*) buf;
uint32 row;
tsample_t s;
for (row = 0; row < imagelength; row++) {
/* merge channels */
for (s = 0; s < spp; s++) {
uint8* bp = bufp + s;
tsize_t n = scanlinesize;
uint8* sbuf = scanline;
if (TIFFReadScanline(in, scanline, row, s) < 0
&& !ignore) {
TIFFError(TIFFFileName(in),
"Error, can't read scanline %lu",
(unsigned long) row);
status = 0;
goto done;
}
while (n-- > 0)
*bp = *sbuf++, bp += spp;
}
bufp += scanlinesize * spp;
}
}
done:
_TIFFfree(scanline);
return status;
}
DECLAREreadFunc(readContigTilesIntoBuffer)
{
int status = 1;
tdata_t tilebuf = _TIFFmalloc(TIFFTileSize(in));
uint32 imagew = TIFFScanlineSize(in);
uint32 tilew = TIFFTileRowSize(in);
int iskew = imagew - tilew;
uint8* bufp = (uint8*) buf;
uint32 tw, tl;
uint32 row;
(void) spp;
if (tilebuf == 0)
return 0;
(void) TIFFGetField(in, TIFFTAG_TILEWIDTH, &tw);
(void) TIFFGetField(in, TIFFTAG_TILELENGTH, &tl);
for (row = 0; row < imagelength; row += tl) {
uint32 nrow = (row+tl > imagelength) ? imagelength-row : tl;
uint32 colb = 0;
uint32 col;
for (col = 0; col < imagewidth; col += tw) {
if (TIFFReadTile(in, tilebuf, col, row, 0, 0) < 0
&& !ignore) {
TIFFError(TIFFFileName(in),
"Error, can't read tile at %lu %lu",
(unsigned long) col,
(unsigned long) row);
status = 0;
goto done;
}
if (colb + tilew > imagew) {
uint32 width = imagew - colb;
uint32 oskew = tilew - width;
cpStripToTile(bufp + colb,
tilebuf, nrow, width,
oskew + iskew, oskew );
} else
cpStripToTile(bufp + colb,
tilebuf, nrow, tilew,
iskew, 0);
colb += tilew;
}
bufp += imagew * nrow;
}
done:
_TIFFfree(tilebuf);
return status;
}
DECLAREreadFunc(readSeparateTilesIntoBuffer)
{
int status = 1;
uint32 imagew = TIFFRasterScanlineSize(in);
uint32 tilew = TIFFTileRowSize(in);
int iskew = imagew - tilew*spp;
tdata_t tilebuf = _TIFFmalloc(TIFFTileSize(in));
uint8* bufp = (uint8*) buf;
uint32 tw, tl;
uint32 row;
uint16 bps, bytes_per_sample;
if (tilebuf == 0)
return 0;
(void) TIFFGetField(in, TIFFTAG_TILEWIDTH, &tw);
(void) TIFFGetField(in, TIFFTAG_TILELENGTH, &tl);
(void) TIFFGetField(in, TIFFTAG_BITSPERSAMPLE, &bps);
assert( bps % 8 == 0 );
bytes_per_sample = bps/8;
for (row = 0; row < imagelength; row += tl) {
uint32 nrow = (row+tl > imagelength) ? imagelength-row : tl;
uint32 colb = 0;
uint32 col;
for (col = 0; col < imagewidth; col += tw) {
tsample_t s;
for (s = 0; s < spp; s++) {
if (TIFFReadTile(in, tilebuf, col, row, 0, s) < 0
&& !ignore) {
TIFFError(TIFFFileName(in),
"Error, can't read tile at %lu %lu, "
"sample %lu",
(unsigned long) col,
(unsigned long) row,
(unsigned long) s);
status = 0;
goto done;
}
/*
* Tile is clipped horizontally. Calculate
* visible portion and skewing factors.
*/
if (colb + tilew*spp > imagew) {
uint32 width = imagew - colb;
int oskew = tilew*spp - width;
cpSeparateBufToContigBuf(
bufp+colb+s*bytes_per_sample,
tilebuf, nrow,
width/(spp*bytes_per_sample),
oskew + iskew,
oskew/spp, spp,
bytes_per_sample);
} else
cpSeparateBufToContigBuf(
bufp+colb+s*bytes_per_sample,
tilebuf, nrow, tw,
iskew, 0, spp,
bytes_per_sample);
}
colb += tilew*spp;
}
bufp += imagew * nrow;
}
done:
_TIFFfree(tilebuf);
return status;
}
DECLAREwriteFunc(writeBufferToContigStrips)
{
uint32 row, rowsperstrip;
tstrip_t strip = 0;
(void) imagewidth; (void) spp;
(void) TIFFGetFieldDefaulted(out, TIFFTAG_ROWSPERSTRIP, &rowsperstrip);
for (row = 0; row < imagelength; row += rowsperstrip) {
uint32 nrows = (row+rowsperstrip > imagelength) ?
imagelength-row : rowsperstrip;
tsize_t stripsize = TIFFVStripSize(out, nrows);
if (TIFFWriteEncodedStrip(out, strip++, buf, stripsize) < 0) {
TIFFError(TIFFFileName(out),
"Error, can't write strip %lu", strip - 1);
return 0;
}
buf += stripsize;
}
return 1;
}
DECLAREwriteFunc(writeBufferToSeparateStrips)
{
uint32 rowsize = imagewidth * spp;
uint32 rowsperstrip;
tdata_t obuf = _TIFFmalloc(TIFFStripSize(out));
tstrip_t strip = 0;
tsample_t s;
if (obuf == NULL)
return (0);
(void) TIFFGetFieldDefaulted(out, TIFFTAG_ROWSPERSTRIP, &rowsperstrip);
for (s = 0; s < spp; s++) {
uint32 row;
for (row = 0; row < imagelength; row += rowsperstrip) {
uint32 nrows = (row+rowsperstrip > imagelength) ?
imagelength-row : rowsperstrip;
tsize_t stripsize = TIFFVStripSize(out, nrows);
cpContigBufToSeparateBuf(
obuf, (uint8*) buf + row*rowsize + s,
nrows, imagewidth, 0, 0, spp, 1);
if (TIFFWriteEncodedStrip(out, strip++, obuf, stripsize) < 0) {
TIFFError(TIFFFileName(out),
"Error, can't write strip %lu",
strip - 1);
_TIFFfree(obuf);
return 0;
}
}
}
_TIFFfree(obuf);
return 1;
}
DECLAREwriteFunc(writeBufferToContigTiles)
{
uint32 imagew = TIFFScanlineSize(out);
uint32 tilew = TIFFTileRowSize(out);
int iskew = imagew - tilew;
tdata_t obuf = _TIFFmalloc(TIFFTileSize(out));
uint8* bufp = (uint8*) buf;
uint32 tl, tw;
uint32 row;
(void) spp;
if (obuf == NULL)
return 0;
(void) TIFFGetField(out, TIFFTAG_TILELENGTH, &tl);
(void) TIFFGetField(out, TIFFTAG_TILEWIDTH, &tw);
for (row = 0; row < imagelength; row += tilelength) {
uint32 nrow = (row+tl > imagelength) ? imagelength-row : tl;
uint32 colb = 0;
uint32 col;
for (col = 0; col < imagewidth; col += tw) {
/*
* Tile is clipped horizontally. Calculate
* visible portion and skewing factors.
*/
if (colb + tilew > imagew) {
uint32 width = imagew - colb;
int oskew = tilew - width;
cpStripToTile(obuf, bufp + colb, nrow, width,
oskew, oskew + iskew);
} else
cpStripToTile(obuf, bufp + colb, nrow, tilew,
0, iskew);
if (TIFFWriteTile(out, obuf, col, row, 0, 0) < 0) {
TIFFError(TIFFFileName(out),
"Error, can't write tile at %lu %lu",
(unsigned long) col,
(unsigned long) row);
_TIFFfree(obuf);
return 0;
}
colb += tilew;
}
bufp += nrow * imagew;
}
_TIFFfree(obuf);
return 1;
}
DECLAREwriteFunc(writeBufferToSeparateTiles)
{
uint32 imagew = TIFFScanlineSize(out);
tsize_t tilew = TIFFTileRowSize(out);
uint32 iimagew = TIFFRasterScanlineSize(out);
int iskew = iimagew - tilew*spp;
tdata_t obuf = _TIFFmalloc(TIFFTileSize(out));
uint8* bufp = (uint8*) buf;
uint32 tl, tw;
uint32 row;
uint16 bps, bytes_per_sample;
if (obuf == NULL)
return 0;
(void) TIFFGetField(out, TIFFTAG_TILELENGTH, &tl);
(void) TIFFGetField(out, TIFFTAG_TILEWIDTH, &tw);
(void) TIFFGetField(out, TIFFTAG_BITSPERSAMPLE, &bps);
assert( bps % 8 == 0 );
bytes_per_sample = bps/8;
for (row = 0; row < imagelength; row += tl) {
uint32 nrow = (row+tl > imagelength) ? imagelength-row : tl;
uint32 colb = 0;
uint32 col;
for (col = 0; col < imagewidth; col += tw) {
tsample_t s;
for (s = 0; s < spp; s++) {
/*
* Tile is clipped horizontally. Calculate
* visible portion and skewing factors.
*/
if (colb + tilew > imagew) {
uint32 width = (imagew - colb);
int oskew = tilew - width;
cpContigBufToSeparateBuf(obuf,
bufp + (colb*spp) + s,
nrow, width/bytes_per_sample,
oskew, (oskew*spp)+iskew, spp,
bytes_per_sample);
} else
cpContigBufToSeparateBuf(obuf,
bufp + (colb*spp) + s,
nrow, tilewidth,
0, iskew, spp,
bytes_per_sample);
if (TIFFWriteTile(out, obuf, col, row, 0, s) < 0) {
TIFFError(TIFFFileName(out),
"Error, can't write tile at %lu %lu "
"sample %lu",
(unsigned long) col,
(unsigned long) row,
(unsigned long) s);
_TIFFfree(obuf);
return 0;
}
}
colb += tilew;
}
bufp += nrow * iimagew;
}
_TIFFfree(obuf);
return 1;
}
static int
get_page_geometry (char *name, struct pagedef *page)
{
char *ptr;
int n;
for (ptr = name; *ptr; ptr++)
*ptr = (char)tolower((int)*ptr);
for (n = 0; n < MAX_PAPERNAMES; n++)
{
if (strcmp(name, PaperTable[n].name) == 0)
{
page->width = PaperTable[n].width;
page->length = PaperTable[n].length;
strncpy (page->name, PaperTable[n].name, 15);
page->name[15] = '\0';
return (0);
}
}
return (1);
}
static void
initPageSetup (struct pagedef *page, struct pageseg *pagelist,
struct buffinfo seg_buffs[])
{
int i;
strcpy (page->name, "");
page->mode = PAGE_MODE_NONE;
page->res_unit = RESUNIT_NONE;
page->hres = 0.0;
page->vres = 0.0;
page->width = 0.0;
page->length = 0.0;
page->hmargin = 0.0;
page->vmargin = 0.0;
page->rows = 0;
page->cols = 0;
page->orient = ORIENTATION_NONE;
for (i = 0; i < MAX_SECTIONS; i++)
{
pagelist[i].x1 = (uint32)0;
pagelist[i].x2 = (uint32)0;
pagelist[i].y1 = (uint32)0;
pagelist[i].y2 = (uint32)0;
pagelist[i].buffsize = (uint32)0;
pagelist[i].position = 0;
pagelist[i].total = 0;
}
for (i = 0; i < MAX_OUTBUFFS; i++)
{
seg_buffs[i].size = 0;
seg_buffs[i].buffer = NULL;
}
}
static void
initImageData (struct image_data *image)
{
image->xres = 0.0;
image->yres = 0.0;
image->width = 0;
image->length = 0;
image->res_unit = RESUNIT_NONE;
image->bps = 0;
image->spp = 0;
image->planar = 0;
image->photometric = 0;
}
static void
initCropMasks (struct crop_mask *cps)
{
int i;
cps->crop_mode = CROP_NONE;
cps->res_unit = RESUNIT_NONE;
cps->edge_ref = EDGE_TOP;
cps->width = 0;
cps->length = 0;
for (i = 0; i < 4; i++)
cps->margins[i] = 0.0;
cps->bufftotal = (uint32)0;
cps->combined_width = (uint32)0;
cps->combined_length = (uint32)0;
cps->rotation = (uint16)0;
cps->photometric = INVERT_DATA_AND_TAG;
cps->mirror = (uint16)0;
cps->invert = (uint16)0;
cps->zones = (uint32)0;
cps->regions = (uint32)0;
for (i = 0; i < MAX_REGIONS; i++)
{
cps->corners[i].X1 = 0.0;
cps->corners[i].X2 = 0.0;
cps->corners[i].Y1 = 0.0;
cps->corners[i].Y2 = 0.0;
cps->regionlist[i].x1 = 0;
cps->regionlist[i].x2 = 0;
cps->regionlist[i].y1 = 0;
cps->regionlist[i].y2 = 0;
cps->regionlist[i].width = 0;
cps->regionlist[i].length = 0;
cps->regionlist[i].buffsize = 0;
cps->regionlist[i].buffptr = NULL;
cps->zonelist[i].position = 0;
cps->zonelist[i].total = 0;
}
cps->exp_mode = ONE_FILE_COMPOSITE;
cps->img_mode = COMPOSITE_IMAGES;
}
/* Compute pixel offsets into the image for margins and fixed regions */
static int
computeInputPixelOffsets(struct crop_mask *crop, struct image_data *image,
struct offset *off)
{
double scale;
float xres, yres;
/* Values for these offsets are in pixels from start of image, not bytes
* since some images may have more than 8 bits per pixel */
uint32 tmargin, bmargin, lmargin, rmargin;
uint32 startx, endx; /* offsets of first and last columns to extract */
uint32 starty, endy; /* offsets of first and last row to extract */
uint32 width, length, crop_width, crop_length;
uint32 i, max_width, max_length, zwidth, zlength, buffsize;
double x1, x2, y1, y2;
if (image->res_unit != RESUNIT_INCH && image->res_unit != RESUNIT_CENTIMETER)
{
xres = 1.0;
yres = 1.0;
}
else
{
if (((image->xres == 0) || (image->yres == 0)) &&
((crop->crop_mode & CROP_REGIONS) || (crop->crop_mode & CROP_MARGINS) ||
(crop->crop_mode & CROP_LENGTH) || (crop->crop_mode & CROP_WIDTH)))
{
TIFFError("computeInputPixelOffsets", "Cannot compute margins or fixed size sections without image resolution");
TIFFError("computeInputPixelOffsets", "Specify units in pixels and try again");
return (-1);
}
xres = image->xres;
yres = image->yres;
}
/* Translate user units to image units */
scale = 1.0;
switch (crop->res_unit) {
case RESUNIT_CENTIMETER:
if (image->res_unit == RESUNIT_INCH)
scale = 1.0/2.54;
break;
case RESUNIT_INCH:
if (image->res_unit == RESUNIT_CENTIMETER)
scale = 2.54;
break;
case RESUNIT_NONE: /* Dimensions in pixels */
default:
break;
}
#ifdef DEBUG
fprintf (stderr, "Scale: %f Requested resunit %s, Image resunit %s\n\n",
scale, (crop->res_unit == RESUNIT_INCH) ? "inch" :
((crop->res_unit == RESUNIT_CENTIMETER) ? "centimeter" : "pixel"),
(image->res_unit == RESUNIT_INCH) ? "inch" :
((image->res_unit == RESUNIT_CENTIMETER) ? "centimeter" : "pixel"));
#endif
if (crop->crop_mode & CROP_REGIONS)
{
max_width = max_length = 0;
for (i = 0; i < crop->regions; i++)
{
if ((crop->res_unit == RESUNIT_INCH) || (crop->res_unit == RESUNIT_CENTIMETER))
{
x1 = crop->corners[i].X1 * scale * xres;
x2 = crop->corners[i].X2 * scale * xres;
y1 = crop->corners[i].Y1 * scale * yres;
y2 = crop->corners[i].Y2 * scale * yres;
}
else
{
x1 = crop->corners[i].X1;
x2 = crop->corners[i].X2;
y1 = crop->corners[i].Y1;
y2 = crop->corners[i].Y2;
}
if (x1 < 1)
crop->regionlist[i].x1 = 0;
else
crop->regionlist[i].x1 = (int) (x1 - 1);
if (x2 > image->width - 1)
crop->regionlist[i].x2 = image->width - 1;
else
crop->regionlist[i].x2 = (int) (x2 - 1);
zwidth = crop->regionlist[i].x2 - crop->regionlist[i].x1 + 1;
if (y1 < 1)
crop->regionlist[i].y1 = 0;
else
crop->regionlist[i].y1 = (int) (y1 - 1);
if (y2 > image->length - 1)
crop->regionlist[i].y2 = image->length - 1;
else
crop->regionlist[i].y2 = (int) (y2 - 1);
zlength = crop->regionlist[i].y2 - crop->regionlist[i].y1 + 1;
if (zwidth > max_width)
max_width = zwidth;
if (zlength > max_length)
max_length = zlength;
buffsize = (uint32)
((ceil)(((zwidth * image->bps + 7 ) / 8) * image->spp) * (ceil(zlength)));
crop->regionlist[i].buffsize = buffsize;
crop->bufftotal += buffsize;
if (crop->img_mode == COMPOSITE_IMAGES)
{
switch (crop->edge_ref)
{
case EDGE_LEFT:
case EDGE_RIGHT:
crop->combined_length = zlength;
crop->combined_width += zwidth;
break;
case EDGE_BOTTOM:
case EDGE_TOP: /* width from left, length from top */
default:
crop->combined_width = zwidth;
crop->combined_length += zlength;
break;
}
}
}
return (0);
}
/* Convert crop margins into offsets into image
* Margins are expressed as pixel rows and columns, not bytes
*/
if (crop->crop_mode & CROP_MARGINS)
{
if (crop->res_unit != RESUNIT_INCH && crop->res_unit != RESUNIT_CENTIMETER)
{ /* User has specified pixels as reference unit */
tmargin = (uint32)(crop->margins[0]);
lmargin = (uint32)(crop->margins[1]);
bmargin = (uint32)(crop->margins[2]);
rmargin = (uint32)(crop->margins[3]);
}
else
{ /* inches or centimeters specified */
tmargin = (uint32)(crop->margins[0] * scale * yres);
lmargin = (uint32)(crop->margins[1] * scale * xres);
bmargin = (uint32)(crop->margins[2] * scale * yres);
rmargin = (uint32)(crop->margins[3] * scale * xres);
}
if ((lmargin + rmargin) > image->width)
{
TIFFError("computeInputPixelOffsets", "Combined left and right margins exceed image width");
lmargin = (uint32) 0;
rmargin = (uint32) 0;
return (-1);
}
if ((tmargin + bmargin) > image->length)
{
TIFFError("computeInputPixelOffsets", "Combined top and bottom margins exceed image length");
tmargin = (uint32) 0;
bmargin = (uint32) 0;
return (-1);
}
}
else
{ /* no margins requested */
tmargin = (uint32) 0;
lmargin = (uint32) 0;
bmargin = (uint32) 0;
rmargin = (uint32) 0;
}
/* Width, height, and margins are expressed as pixel offsets into image */
if (crop->res_unit != RESUNIT_INCH && crop->res_unit != RESUNIT_CENTIMETER)
{
if (crop->crop_mode & CROP_WIDTH)
width = (uint32)crop->width;
else
width = image->width - lmargin - rmargin;
if (crop->crop_mode & CROP_LENGTH)
length = (uint32)crop->length;
else
length = image->length - tmargin - bmargin;
}
else
{
if (crop->crop_mode & CROP_WIDTH)
width = (uint32)(crop->width * scale * image->xres);
else
width = image->width - lmargin - rmargin;
if (crop->crop_mode & CROP_LENGTH)
length = (uint32)(crop->length * scale * image->yres);
else
length = image->length - tmargin - bmargin;
}
off->tmargin = tmargin;
off->bmargin = bmargin;
off->lmargin = lmargin;
off->rmargin = rmargin;
/* Calculate regions defined by margins, width, and length.
* Coordinates expressed as 0 to imagewidth - 1, imagelength - 1,
* since they are used to compute offsets into buffers */
switch (crop->edge_ref) {
case EDGE_BOTTOM:
startx = lmargin;
if ((startx + width) >= (image->width - rmargin))
endx = image->width - rmargin - 1;
else
endx = startx + width - 1;
endy = image->length - bmargin - 1;
if ((endy - length) <= tmargin)
starty = tmargin;
else
starty = endy - length + 1;
break;
case EDGE_RIGHT:
endx = image->width - rmargin - 1;
if ((endx - width) <= lmargin)
startx = lmargin;
else
startx = endx - width + 1;
starty = tmargin;
if ((starty + length) >= (image->length - bmargin))
endy = image->length - bmargin - 1;
else
endy = starty + length - 1;
break;
case EDGE_TOP: /* width from left, length from top */
case EDGE_LEFT:
default:
startx = lmargin;
if ((startx + width) >= (image->width - rmargin))
endx = image->width - rmargin - 1;
else
endx = startx + width - 1;
starty = tmargin;
if ((starty + length) >= (image->length - bmargin))
endy = image->length - bmargin - 1;
else
endy = starty + length - 1;
break;
}
off->startx = startx;
off->starty = starty;
off->endx = endx;
off->endy = endy;
crop_width = endx - startx + 1;
crop_length = endy - starty + 1;
if (crop_width <= 0)
{
TIFFError("computeInputPixelOffsets",
"Invalid left/right margins and /or image crop width requested");
return (-1);
}
if (crop_width > image->width)
crop_width = image->width;
if (crop_length <= 0)
{
TIFFError("computeInputPixelOffsets",
"Invalid top/bottom margins and /or image crop length requested");
return (-1);
}
if (crop_length > image->length)
crop_length = image->length;
off->crop_width = crop_width;
off->crop_length = crop_length;
#ifdef DEBUG
fprintf (stderr, "Startx: %d endx: %d Starty: %d endy: %d Crop width: %d length: %d\n",
startx, endx, starty, endy, crop_width, crop_length);
#endif
return (0);
} /* end computeInputPixelOffsets */
/*
* Translate crop options into pixel offsets for one or more regions of the image.
* Options are applied in this order: margins, specific width and length, zones,
* but all are optional. Margins are relative to each edge. Width, length and
* zones are relative to the specified reference edge. Zones are expressed as
* X:Y where X is the ordinal value in a set of Y equal sized portions. eg.
* 2:3 would indicate the middle third of the region qualified by margins and
* any explicit width and length specified. Regions are specified by coordinates
* of the top left and lower right corners with range 1 to width or height.
*/
static int
getCropOffsets(struct image_data *image, struct crop_mask *crop)
{
struct offset offsets;
int i;
uint32 seg, total, need_buff = 0;
uint32 test, buffsize;
double zwidth, zlength;
memset(&offsets, '\0', sizeof(struct offset));
crop->bufftotal = 0;
crop->combined_width = (uint32)0;
crop->combined_length = (uint32)0;
crop->selections = 0;
/* Compute pixel offsets if margins or fixed width or length specified */
if ((crop->crop_mode & CROP_MARGINS) ||
(crop->crop_mode & CROP_REGIONS) ||
(crop->crop_mode & CROP_LENGTH) ||
(crop->crop_mode & CROP_WIDTH))
{
if (computeInputPixelOffsets(crop, image, &offsets))
{
TIFFError ("getCropOffsets", "Unable to compute crop margins");
return (-1);
}
need_buff = TRUE;
crop->selections = crop->regions;
/* Regions are only calculated from top and left edges with no margins */
if (crop->crop_mode & CROP_REGIONS)
return (0);
}
else
{ /* cropped area is the full image */
offsets.tmargin = 0;
offsets.lmargin = 0;
offsets.bmargin = 0;
offsets.rmargin = 0;
offsets.crop_width = image->width;
offsets.crop_length = image->length;
offsets.startx = 0;
offsets.endx = image->width - 1;
offsets.starty = 0;
offsets.endy = image->length - 1;
need_buff = FALSE;
}
#ifdef DEBUG
fprintf (stderr, "Margins: Top: %d Left: %d Bottom: %d Right: %d\n",
offsets.tmargin, offsets.lmargin, offsets.bmargin, offsets.rmargin);
fprintf (stderr, "Crop region within margins: Adjusted Width: %6d Length: %6d\n\n",
offsets.crop_width, offsets.crop_length);
#endif
if (!(crop->crop_mode & CROP_ZONES)) /* no crop zones requested */
{
if (need_buff == FALSE) /* No margins or fixed width or length areas */
{
crop->selections = 0;
/*
crop->zones = 0;
*/
crop->combined_width = image->width;
crop->combined_length = image->length;
return (0);
}
else
{
/* Use one region for margins and fixed width or length areas
* even though it was not formally declared as a region.
*/
crop->selections = 1;
crop->zones = 1;
crop->zonelist[0].total = 1;
crop->zonelist[0].position = 1;
}
}
else
crop->selections = crop->zones;
for (i = 0; i < crop->zones; i++)
{
seg = crop->zonelist[i].position;
total = crop->zonelist[i].total;
switch (crop->edge_ref)
{
case EDGE_LEFT: /* zones from left to right, length from top */
zlength = offsets.crop_length;
crop->regionlist[i].y1 = offsets.starty;
crop->regionlist[i].y2 = offsets.endy;
crop->regionlist[i].x1 = offsets.startx +
(uint32)(offsets.crop_width * 1.0 * (seg - 1) / total);
test = offsets.startx +
(uint32)(offsets.crop_width * 1.0 * seg / total);
if (test > image->width - 1)
crop->regionlist[i].x2 = image->width - 1;
else
crop->regionlist[i].x2 = test - 1;
zwidth = crop->regionlist[i].x2 - crop->regionlist[i].x1 + 1;
/* This is passed to extractCropZone or extractCompositeZones */
crop->combined_length = (uint32)zlength;
if (crop->exp_mode == COMPOSITE_IMAGES)
crop->combined_width += (uint32)zwidth;
else
crop->combined_width = (uint32)zwidth;
break;
case EDGE_BOTTOM: /* width from left, zones from bottom to top */
zwidth = offsets.crop_width;
crop->regionlist[i].x1 = offsets.startx;
crop->regionlist[i].x2 = offsets.endx;
test = offsets.endy - (uint32)(offsets.crop_length * 1.0 * seg / total);
if (test < 1 )
crop->regionlist[i].y1 = 0;
else
crop->regionlist[i].y1 = test + 1;
test = offsets.endy - (uint32)(offsets.crop_length * 1.0 * (seg - 1) / total);
if (test > image->length - 1)
crop->regionlist[i].y2 = image->length - 1;
else
crop->regionlist[i].y2 = test;
zlength = crop->regionlist[i].y2 - crop->regionlist[i].y1 + 1;
/* This is passed to extractCropZone or extractCompositeZones */
if (crop->exp_mode == COMPOSITE_IMAGES)
crop->combined_length += (uint32)zlength;
else
crop->combined_length = (uint32)zlength;
crop->combined_width = (uint32)zwidth;
break;
case EDGE_RIGHT: /* zones from right to left, length from top */
zlength = offsets.crop_length;
crop->regionlist[i].y1 = offsets.starty;
crop->regionlist[i].y2 = offsets.endy;
crop->regionlist[i].x1 = offsets.startx +
(uint32)(offsets.crop_width * (total - seg) * 1.0 / total);
test = offsets.startx +
(uint32)(offsets.crop_width * (total - seg + 1) * 1.0 / total);
if (test > image->width - 1)
crop->regionlist[i].x2 = image->width - 1;
else
crop->regionlist[i].x2 = test - 1;
zwidth = crop->regionlist[i].x2 - crop->regionlist[i].x1 + 1;
/* This is passed to extractCropZone or extractCompositeZones */
crop->combined_length = (uint32)zlength;
if (crop->exp_mode == COMPOSITE_IMAGES)
crop->combined_width += (uint32)zwidth;
else
crop->combined_width = (uint32)zwidth;
break;
case EDGE_TOP: /* width from left, zones from top to bottom */
default:
zwidth = offsets.crop_width;
crop->regionlist[i].x1 = offsets.startx;
crop->regionlist[i].x2 = offsets.endx;
crop->regionlist[i].y1 = offsets.starty + (uint32)(offsets.crop_length * 1.0 * (seg - 1) / total);
test = offsets.starty + (uint32)(offsets.crop_length * 1.0 * seg / total);
if (test > image->length - 1)
crop->regionlist[i].y2 = image->length - 1;
else
crop->regionlist[i].y2 = test - 1;
zlength = crop->regionlist[i].y2 - crop->regionlist[i].y1 + 1;
/* This is passed to extractCropZone or extractCompositeZones */
if (crop->exp_mode == COMPOSITE_IMAGES)
crop->combined_length += (uint32)zlength;
else
crop->combined_length = (uint32)zlength;
crop->combined_width = (uint32)zwidth;
break;
} /* end switch statement */
buffsize = (uint32)((ceil)(((zwidth * image->bps + 7 ) / 8) * image->spp)
* (ceil(zlength)));
crop->regionlist[i].width = (int) zwidth;
crop->regionlist[i].length = (int) zlength;
crop->regionlist[i].buffsize = buffsize;
crop->bufftotal += buffsize;
#ifdef DEBUG
fprintf (stderr, "Zone %d, width: %4d, length: %4d, x1: %4d x2: %4d y1: %4d y2: %4d\n",
i + 1, (uint32)zwidth, (uint32)zlength,
crop->regionlist[i].x1, crop->regionlist[i].x2,
crop->regionlist[i].y1, crop->regionlist[i].y2);
#endif
}
return (0);
} /* end getCropOffsets */
static int
computeOutputPixelOffsets (struct crop_mask *crop, struct image_data *image,
struct pagedef *page, struct pageseg *sections)
{
double scale;
uint32 iwidth, ilength;
uint32 owidth, olength;
uint32 orows, ocols; /* rows and cols for output */
uint32 hmargin, vmargin;
uint32 x1, x2, y1, y2, line_bytes;
unsigned int orientation;
uint32 i, j, k;
scale = 1.0;
if (page->res_unit == RESUNIT_NONE)
page->res_unit = image->res_unit;
switch (image->res_unit) {
case RESUNIT_CENTIMETER:
if (page->res_unit == RESUNIT_INCH)
scale = 1.0/2.54;
break;
case RESUNIT_INCH:
if (page->res_unit == RESUNIT_CENTIMETER)
scale = 2.54;
break;
case RESUNIT_NONE: /* Dimensions in pixels */
default:
break;
}
/* get width, height, resolutions of input image selection */
if (crop->combined_width > 0)
iwidth = crop->combined_width;
else
iwidth = image->width;
if (crop->combined_length > 0)
ilength = crop->combined_length;
else
ilength = image->length;
if (page->hres <= 1.0)
page->hres = image->xres;
if (page->vres <= 1.0)
page->vres = image->yres;
if ((page->hres < 1.0) || (page->vres < 1.0))
{
TIFFError("computeOutputPixelOffsets",
"Invalid horizontal or vertical resolution specified or read from input image");
return (1);
}
#ifdef DEBUG
fprintf (stderr, "Page size: %s, Vres: %3.2f, Hres: %3.2f, "
"Hmargin: %3.2f, Vmargin: %3.2f\n",
page->name, page->vres, page->hres,
page->hmargin, page->vmargin);
fprintf (stderr, "Res_unit: %d, Scale: %3.2f, Page width: %3.2f, length: %3.2f\n",
page->res_unit, scale, page->width, page->length);
#endif
/* compute margins at specified unit and resolution */
if (page->mode & PAGE_MODE_MARGINS)
{
if (page->res_unit == RESUNIT_INCH || page->res_unit == RESUNIT_CENTIMETER)
{ /* inches or centimeters specified */
hmargin = (uint32)(page->hmargin * scale * page->hres * ((image->bps + 7)/ 8));
vmargin = (uint32)(page->vmargin * scale * page->vres * ((image->bps + 7)/ 8));
}
else
{ /* Otherwise user has specified pixels as reference unit */
hmargin = (uint32)(page->hmargin * scale * ((image->bps + 7)/ 8));
vmargin = (uint32)(page->vmargin * scale * ((image->bps + 7)/ 8));
}
if ((hmargin * 2.0) > (page->width * page->hres))
{
TIFFError("computeOutputPixelOffsets",
"Combined left and right margins exceed page width");
hmargin = (uint32) 0;
return (-1);
}
if ((vmargin * 2.0) > (page->length * page->vres))
{
TIFFError("computeOutputPixelOffsets",
"Combined top and bottom margins exceed page length");
vmargin = (uint32) 0;
return (-1);
}
}
else
{
hmargin = 0;
vmargin = 0;
}
if (page->mode & PAGE_MODE_ROWSCOLS )
{
/* Maybe someday but not for now */
if (page->mode & PAGE_MODE_MARGINS)
TIFFError("computeOutputPixelOffsets",
"Output margins cannot be specified with rows and columns");
owidth = TIFFhowmany(iwidth, page->cols);
olength = TIFFhowmany(ilength, page->rows);
}
else
{
if (page->mode & PAGE_MODE_PAPERSIZE )
{
owidth = (uint32)((page->width * page->hres) - (hmargin * 2));
olength = (uint32)((page->length * page->vres) - (vmargin * 2));
}
else
{
owidth = (uint32)(iwidth - (hmargin * 2 * page->hres));
olength = (uint32)(ilength - (vmargin * 2 * page->vres));
}
}
if (owidth > iwidth)
owidth = iwidth;
if (olength > ilength)
olength = ilength;
/* Compute the number of pages required for Portrait or Landscape */
switch (page->orient)
{
case ORIENTATION_NONE:
case ORIENTATION_PORTRAIT:
ocols = TIFFhowmany(iwidth, owidth);
orows = TIFFhowmany(ilength, olength);
orientation = ORIENTATION_PORTRAIT;
break;
case ORIENTATION_LANDSCAPE:
ocols = TIFFhowmany(iwidth, olength);
orows = TIFFhowmany(ilength, owidth);
x1 = olength;
olength = owidth;
owidth = x1;
orientation = ORIENTATION_LANDSCAPE;
break;
case ORIENTATION_AUTO:
default:
x1 = TIFFhowmany(iwidth, owidth);
x2 = TIFFhowmany(ilength, olength);
y1 = TIFFhowmany(iwidth, olength);
y2 = TIFFhowmany(ilength, owidth);
if ( (x1 * x2) < (y1 * y2))
{ /* Portrait */
ocols = x1;
orows = x2;
orientation = ORIENTATION_PORTRAIT;
}
else
{ /* Landscape */
ocols = y1;
orows = y2;
x1 = olength;
olength = owidth;
owidth = x1;
orientation = ORIENTATION_LANDSCAPE;
}
}
if (ocols < 1)
ocols = 1;
if (orows < 1)
orows = 1;
/* If user did not specify rows and cols, set them from calcuation */
if (page->rows < 1)
page->rows = orows;
if (page->cols < 1)
page->cols = ocols;
line_bytes = TIFFhowmany8(owidth * image->bps) * image->spp;
#ifdef DEBUG
fprintf (stderr, "\nBest fit: rows: %d, cols: %d, orientation: %s\n",
orows, ocols,
orientation == ORIENTATION_PORTRAIT ? "portrait" : "landscape");
fprintf (stderr, "Width: %d, Length: %d, Hmargin: %d, Vmargin: %d\n\n",
owidth, olength, hmargin, vmargin);
#endif
if ((page->rows * page->cols) > MAX_SECTIONS)
{
TIFFError("computeOutputPixelOffsets",
"Rows and Columns exceed maximum sections\nIncrease resolution or reduce sections");
return (-1);
}
/* build the list of offsets for each output section */
for (k = 0, i = 0 && k <= MAX_SECTIONS; i < orows; i++)
{
y1 = (uint32)(olength * i);
y2 = (uint32)(olength * (i + 1) - 1);
if (y2 >= ilength)
y2 = ilength - 1;
for (j = 0; j < ocols; j++, k++)
{
x1 = (uint32)(owidth * j);
x2 = (uint32)(owidth * (j + 1) - 1);
if (x2 >= iwidth)
x2 = iwidth - 1;
sections[k].x1 = x1;
sections[k].x2 = x2;
sections[k].y1 = y1;
sections[k].y2 = y2;
sections[k].buffsize = line_bytes * olength;
sections[k].position = k + 1;
sections[k].total = orows * ocols;
#ifdef DEBUG
fprintf (stderr, "Sect %d, width: %4d, length: %4d, x1: %4d x2: %4d y1: %4d y2: %4d\n",
k + 1, sections[k].x2 - sections[k].x1 + 1, sections[k].y2 - sections[k].y1 + 1,
sections[k].x1, sections[k].x2, sections[k].y1, sections[k].y2);
#endif
}
}
return (0);
} /* end computeOutputPixelOffsets */
static int
loadImage(TIFF* in, struct image_data *image, unsigned char **read_ptr)
{
float xres, yres;
uint16 nstrips, ntiles, planar, bps, spp, res_unit, photometric;
uint32 width, length;
uint32 stsize, tlsize, buffsize;
unsigned char *read_buff = NULL;
unsigned char *new_buff = NULL;
int readunit = 0;
static uint32 prev_readsize = 0;
TIFFGetFieldDefaulted(in, TIFFTAG_BITSPERSAMPLE, &bps);
TIFFGetFieldDefaulted(in, TIFFTAG_SAMPLESPERPIXEL, &spp);
TIFFGetFieldDefaulted(in, TIFFTAG_PLANARCONFIG, &planar);
TIFFGetField(in, TIFFTAG_PHOTOMETRIC, &photometric);
TIFFGetField(in, TIFFTAG_IMAGEWIDTH, &width);
TIFFGetField(in, TIFFTAG_IMAGELENGTH, &length);
TIFFGetField(in, TIFFTAG_XRESOLUTION, &xres);
TIFFGetField(in, TIFFTAG_YRESOLUTION, &yres);
TIFFGetFieldDefaulted(in, TIFFTAG_RESOLUTIONUNIT, &res_unit);
image->bps = bps;
image->spp = spp;
image->planar = planar;
image->width = width;
image->length = length;
image->xres = xres;
image->yres = yres;
image->res_unit = res_unit;
image->photometric = photometric;
if ((bps == 0) || (spp == 0))
{
TIFFError("loadImage", "Invalid samples per pixel (%d) or bits per sample (%d)",
spp, bps);
return (-1);
}
if (TIFFIsTiled(in))
{
readunit = TILE;
tlsize = TIFFTileSize(in);
ntiles = TIFFNumberOfTiles(in);
buffsize = tlsize * ntiles;
}
else
{
readunit = STRIP;
stsize = TIFFStripSize(in);
nstrips = TIFFNumberOfStrips(in);
buffsize = stsize * nstrips;
}
read_buff = *read_ptr;
if (!read_buff)
read_buff = (unsigned char *)_TIFFmalloc(buffsize);
else
{
if (prev_readsize < buffsize)
{
new_buff = _TIFFrealloc(read_buff, buffsize);
if (!new_buff)
{
free (read_buff);
read_buff = (unsigned char *)_TIFFmalloc(buffsize);
}
else
read_buff = new_buff;
}
}
if (!read_buff)
{
TIFFError("loadImageImage", "Unable to allocate/reallocate read buffer");
return (-1);
}
_TIFFmemset(read_buff, '\0', buffsize);
prev_readsize = buffsize;
*read_ptr = read_buff;
/* read current image into memory */
switch (readunit) {
case STRIP:
if (planar == PLANARCONFIG_CONTIG)
{
if (!(readContigStripsIntoBuffer(in, read_buff, length, width, spp)))
{
TIFFError("loadImage", "Unable to read contiguous strips into buffer");
return (-1);
}
}
else
{
if (!(readSeparateStripsIntoBuffer(in, read_buff, length, width, spp)))
{
TIFFError("loadImage", "Unable to read separate strips into buffer");
return (-1);
}
}
break;
case TILE:
if (planar == PLANARCONFIG_CONTIG)
{
if (!(readContigTilesIntoBuffer(in, read_buff, length, width, spp)))
{
TIFFError("loadImage", "Unable to read contiguous tiles into buffer");
return (-1);
}
}
else
{
if (!(readSeparateTilesIntoBuffer(in, read_buff, length, width, spp)))
{
TIFFError("loadImage", "Unable to read separate tiles into buffer");
return (-1);
}
}
break;
default: TIFFError("loadImage", "Unsupported image file format");
return (-1);
break;
}
return (0);
} /* end loadImage */
/* Extract multiple zones from an image and combine into a single composite image */
static int
extractCompositeRegions(struct image_data *image, struct crop_mask *crop,
unsigned char *read_buff, unsigned char *crop_buff)
{
uint32 i, j, shift1, shift2, shift3, trailing_bits, prev_trailing_bits;
uint32 row, first_row, last_row, first_col, last_col;
uint32 src_offset, dst_offset, row_offset, col_offset;
uint32 offset1, offset2, full_bytes, rowsize;
uint32 crop_width, crop_length, img_width, img_length;
uint32 prev_width, composite_width;
uint16 bps, spp;
unsigned char bytebuff1, bytebuff2, src_byte;
unsigned char *src_ptr, *dst_ptr;
img_width = image->width;
img_length = image->length;
bps = image->bps;
spp = image->spp;
src_ptr = read_buff;
src_offset = 0;
dst_ptr = crop_buff;
dst_offset = 0;
rowsize = spp * ((img_width * bps + 7) / 8);
prev_width = 0;
prev_trailing_bits = 0;
composite_width = crop->combined_width;
crop->combined_width = 0;
crop->combined_length = 0;
for (i = 0; i < crop->selections; i++)
{
/* rows, columns, width, length are expressed in pixels */
first_row = crop->regionlist[i].y1;
last_row = crop->regionlist[i].y2;
first_col = crop->regionlist[i].x1;
last_col = crop->regionlist[i].x2;
crop_width = last_col - first_col + 1;
crop_length = last_row - first_row + 1;
/* number of COMPLETE bytes per row in crop area */
full_bytes = (crop_width * spp * bps) / 8;
trailing_bits = (crop_width * bps) % 8;
/* These should not be needed for composite images */
crop->regionlist[i].width = crop_width;
crop->regionlist[i].length = crop_length;
crop->regionlist[i].buffptr = crop_buff;
switch (crop->edge_ref)
{
case EDGE_TOP:
case EDGE_BOTTOM:
if ((i > 0) && (crop_width != crop->regionlist[i - 1].width))
{
TIFFError ("extractCompositeRegions",
"Only equal width regions can be combined for -E top or bottom");
return (1);
}
crop->combined_width = crop_width;
crop->combined_length += crop_length;
if ((bps % 8) == 0)
{
col_offset = first_col * spp * bps / 8;
for (row = first_row; row <= last_row; row++)
{
row_offset = row * rowsize;
src_ptr = read_buff + row_offset + col_offset;
_TIFFmemcpy (crop_buff + dst_offset, src_ptr, full_bytes);
dst_offset += full_bytes;
}
}
else
{ /* bps != 8 */
shift1 = spp * ((first_col * bps) % 8);
shift2 = spp * ((last_col * bps) % 8);
for (row = first_row; row <= last_row; row++)
{
/* pull out the first byte */
row_offset = row * rowsize;
offset1 = row_offset + (first_col * bps / 8);
offset2 = offset1 + full_bytes;
bytebuff1 = bytebuff2 = 0;
if (shift1 == 0) /* the region is byte and sample alligned */
_TIFFmemcpy (crop_buff + dst_offset, read_buff + offset1, full_bytes);
else /* each destination byte will have to be built from two source bytes*/
{
for (j = 0; j < full_bytes; j++)
{
bytebuff1 = read_buff[offset1 + j] & ((unsigned char)255 >> shift1);
bytebuff2 = read_buff[offset1 + j + 1] & ((unsigned char)255 << (7 - shift1));
crop_buff[dst_offset + j] = (bytebuff1 << shift1) | (bytebuff2 >> (8 - shift1));
}
}
dst_offset += full_bytes;
if (trailing_bits != 0)
{
if (shift2 > shift1)
{
bytebuff1 = read_buff[offset2] & ((unsigned char)255 << (7 - shift2));
bytebuff2 = (bytebuff1 << shift1) & ((unsigned char)255 << shift1);
crop_buff[dst_offset] |= bytebuff2;
}
else
{
if (shift2 <= shift1)
{
bytebuff1 = read_buff[offset2] & ((unsigned char)255 >> shift1);
bytebuff2 = read_buff[offset2 + 1] & ((unsigned char)255 << (7 - shift1));
crop_buff[dst_offset] = (bytebuff1 << shift1) | (bytebuff2 >> (8 - shift1));
}
}
dst_offset++;
}
}
}
break;
case EDGE_LEFT: /* splice the pieces of each row together, side by side */
case EDGE_RIGHT:
if ((i > 0) && (crop_length != crop->regionlist[i - 1].length))
{
TIFFError ("extractCompositeRegions",
"Only equal length regions can be combined for -E left or right");
return (1);
}
dst_offset = prev_width;
crop->combined_width += crop_width;
crop->combined_length = crop_length;
if ((bps % 8) == 0)
{
col_offset = first_col * spp * bps / 8;
for (row = first_row; row <= last_row; row++)
{
row_offset = row * rowsize;
src_ptr = read_buff + row_offset + col_offset;
_TIFFmemcpy (crop_buff + dst_offset, src_ptr, full_bytes);
dst_offset += (composite_width * spp * bps / 8);
}
prev_width += ((spp * bps * crop_width) / 8);
}
else
/* bps % 8 != 0
* This will not work for spp != 1 because of casts to unsigned char
* and shifts limited to seven bits rather than sizeof(data) - 1.
*/
{
shift1 = spp * ((first_col * bps) % 8);
shift2 = spp * ((last_col * bps) % 8);
if (prev_trailing_bits > 7)
{
prev_trailing_bits-= 8;
dst_offset++;
}
shift3 = spp * (8 - prev_trailing_bits);
for (row = first_row; row <= last_row; row++)
{
row_offset = row * rowsize;
offset1 = row_offset + (first_col * bps / 8);
offset2 = offset1 + full_bytes;
src_byte = bytebuff1 = bytebuff2 = 0;
if ((shift1 == 0) && ((prev_trailing_bits % 8) == 0)) /* Regions are byte and sample alligned */
_TIFFmemcpy (crop_buff + dst_offset, read_buff + offset1, full_bytes);
else /* each destination byte will have to be built from two source bytes*/
{
for (j = 0; j < full_bytes; j++)
{ /* Extract the source byte */
if (shift1 == 0)
src_byte = read_buff[offset1 + j];
else
{ /* The source region is not byte aligned */
bytebuff1 = read_buff[offset1 + j] & ((unsigned char)255 >> shift1);
bytebuff2 = read_buff[offset1 + j + 1] & ((unsigned char)255 << (7 - shift1));
src_byte = (bytebuff1 << shift1) | (bytebuff2 >> (8 - shift1));
/* Compute the destination byte(s) */
if ((prev_trailing_bits % 8) == 0)
crop_buff[dst_offset + j] |= src_byte;
else
{ /* The destination is not byte aligned */
bytebuff1 = src_byte >> prev_trailing_bits;
bytebuff2 = src_byte << shift3;
crop_buff[dst_offset + j] |= bytebuff1;
crop_buff[dst_offset + j + 1] |= bytebuff2;
}
}
}
}
/* Handle any trailing bits in the src line */
if (trailing_bits != 0)
{
if (shift2 > shift1)
{
bytebuff1 = read_buff[offset2] & ((unsigned char)255 << (7 - shift2));
src_byte = (bytebuff1 << shift1) & ((unsigned char)255 << shift1);
}
else
{
if (shift2 <= shift1)
{
bytebuff1 = read_buff[offset2] & ((unsigned char)255 >> shift1);
bytebuff2 = read_buff[offset2 + 1] & ((unsigned char)255 << (7 - shift1));
src_byte = ((bytebuff1 << shift1) | (bytebuff2 >> (8 - shift1)));
}
}
if ((prev_trailing_bits % 8) == 0) /* The destination is byte aligned */
crop_buff[dst_offset + full_bytes] = src_byte;
else
{
bytebuff1 = src_byte >> prev_trailing_bits;
crop_buff[dst_offset + full_bytes] |= bytebuff1;
if (trailing_bits > shift3)
{
bytebuff2 = src_byte << shift3;
crop_buff[dst_offset + full_bytes + 1] = bytebuff2;
}
}
}
dst_offset += (composite_width + 7 )/ 8;
/* We are building combined width above so we can't use it here.
* dst_offset += (crop->combined_width + 7 )/ 8;
*/
}
prev_width += ((spp * crop_width) / 8);
prev_trailing_bits += trailing_bits;
}
break;
}
}
return (0);
} /* end extractCompositeRegions */
/* Copy a single region of input buffer to an output buffer.
* N.B. The read functions used copy separate plane data into a buffer as interleaved
* samples rather than separate planes so the same logic works to extract regions
* regardless of the way the data are organized in the input file.
*/
static int
extractSeparateRegion(struct image_data *image, struct crop_mask *crop,
unsigned char *read_buff, unsigned char *crop_buff, int region)
{
uint32 j, shift1, shift2, trailing_bits;
uint32 row, first_row, last_row, first_col, last_col;
uint32 src_offset, dst_offset, row_offset, col_offset;
uint32 offset1, offset2, full_bytes, rowsize;
uint32 crop_width, crop_length, img_width, img_length;
uint16 bps, spp;
unsigned char bytebuff1, bytebuff2;
unsigned char *src_ptr, *dst_ptr;
img_width = image->width;
img_length = image->length;
bps = image->bps;
spp = image->spp;
src_ptr = read_buff;
src_offset = 0;
dst_ptr = crop_buff;
dst_offset = 0;
/* rows, columns, width, length are expressed in pixels */
first_row = crop->regionlist[region].y1;
last_row = crop->regionlist[region].y2;
first_col = crop->regionlist[region].x1;
last_col = crop->regionlist[region].x2;
crop_width = last_col - first_col + 1;
crop_length = last_row - first_row + 1;
crop->regionlist[region].width = crop_width;
crop->regionlist[region].length = crop_length;
crop->regionlist[region].buffptr = crop_buff;
/* number of COMPLETE bytes per row in crop area */
full_bytes = (crop_width * spp * bps) / 8;
trailing_bits = (crop_width * bps) % 8;
rowsize = spp * ((img_width * bps + 7) / 8);
if ((bps % 8) == 0)
{
col_offset = first_col * spp * bps / 8;
for (row = first_row; row <= last_row; row++)
{
row_offset = row * rowsize;
src_ptr = read_buff + row_offset + col_offset;
_TIFFmemcpy (crop_buff + dst_offset, src_ptr, full_bytes);
dst_offset += full_bytes;
}
}
else
{ /* bps != 8 */
shift1 = spp * ((first_col * bps) % 8);
shift2 = spp * ((last_col * bps) % 8);
for (row = first_row; row <= last_row; row++)
{
/* pull out the first byte */
row_offset = row * rowsize;
offset1 = row_offset + (first_col * bps / 8);
offset2 = offset1 + full_bytes;
bytebuff1 = bytebuff2 = 0;
if (shift1 == 0) /* the region is byte and sample alligned */
_TIFFmemcpy (crop_buff + dst_offset, read_buff + offset1, full_bytes);
else /* each destination byte will have to be built from two source bytes*/
{
for (j = 0; j < full_bytes; j++)
{
bytebuff1 = read_buff[offset1 + j] & ((unsigned char)255 >> shift1);
bytebuff2 = read_buff[offset1 + j + 1] & ((unsigned char)255 << (7 - shift1));
crop_buff[dst_offset + j] = (bytebuff1 << shift1) | (bytebuff2 >> (8 - shift1));
}
}
dst_offset += full_bytes;
if (trailing_bits != 0)
{
if (shift2 > shift1)
{
bytebuff1 = read_buff[offset2] & ((unsigned char)255 << (7 - shift2));
bytebuff2 = (bytebuff1 << shift1) & ((unsigned char)255 << shift1);
crop_buff[dst_offset] |= bytebuff2;
}
else
{
if (shift2 <= shift1)
{
bytebuff1 = read_buff[offset2] & ((unsigned char)255 >> shift1);
bytebuff2 = read_buff[offset2 + 1] & ((unsigned char)255 << (7 - shift1));
crop_buff[dst_offset] = (bytebuff1 << shift1) | (bytebuff2 >> (8 - shift1));
}
}
dst_offset++;
}
}
}
return (0);
} /* end extractSeparateRegion */
static int
extractImageSection(struct image_data *image, struct pageseg *section,
unsigned char *src_buff, unsigned char *sect_buff)
{
unsigned char bytebuff1, bytebuff2;
unsigned char *src_ptr, *dst_ptr;
uint32 img_width, img_length, img_rowsize;
uint32 j, shift1, shift2, trailing_bits;
uint32 row, first_row, last_row, first_col, last_col;
uint32 src_offset, dst_offset, row_offset, col_offset;
uint32 offset1, offset2, full_bytes;
uint32 sect_width, sect_length;
uint16 bps, spp;
#ifdef DEBUG2
int k;
unsigned char bitset;
static char *bitarray = NULL;
#endif
img_width = image->width;
img_length = image->length;
bps = image->bps;
spp = image->spp;
src_ptr = src_buff;
dst_ptr = sect_buff;
src_offset = 0;
dst_offset = 0;
#ifdef DEBUG2
if (bitarray == NULL)
{
if ((bitarray = (char *)malloc(img_width)) == NULL)
{
fprintf (stderr, "DEBUG: Unable to allocate debugging bitarray\n");
return (-1);
}
}
#endif
/* rows, columns, width, length are expressed in pixels */
first_row = section->y1;
last_row = section->y2;
first_col = section->x1;
last_col = section->x2;
sect_width = last_col - first_col + 1;
sect_length = last_row - first_row + 1;
img_rowsize = ((img_width * bps + 7) / 8) * spp;
full_bytes = (sect_width * spp * bps) / 8; /* number of COMPLETE bytes per row in section */
trailing_bits = (sect_width * bps) % 8;
#ifdef DEBUG2
fprintf (stderr, "First row: %d, last row: %d, First col: %d, last col: %d\n",
first_row, last_row, first_col, last_col);
fprintf (stderr, "Image width: %d, Image length: %d, bps: %d, spp: %d\n",
img_width, img_length, bps, spp);
fprintf (stderr, "Sect width: %d, Sect length: %d, full bytes: %d trailing bits %d\n",
sect_width, sect_length, full_bytes, trailing_bits);
#endif
if ((bps % 8) == 0)
{
col_offset = first_col * spp * bps / 8;
for (row = first_row; row <= last_row; row++)
{
/* row_offset = row * img_width * spp * bps / 8; */
row_offset = row * img_rowsize;
src_offset = row_offset + col_offset;
#ifdef DEBUG2
fprintf (stderr, "Src offset: %8d, Dst offset: %8d\n", src_offset, dst_offset);
#endif
_TIFFmemcpy (sect_buff + dst_offset, src_buff + src_offset, full_bytes);
dst_offset += full_bytes;
}
}
else
{ /* bps != 8 */
shift1 = spp * ((first_col * bps) % 8);
shift2 = spp * ((last_col * bps) % 8);
for (row = first_row; row <= last_row; row++)
{
/* pull out the first byte */
row_offset = row * img_rowsize;
offset1 = row_offset + (first_col * bps / 8);
offset2 = row_offset + (last_col * bps / 8);
#ifdef DEBUG2
for (j = 0, k = 7; j < 8; j++, k--)
{
bitset = *(src_buff + offset1) & (((unsigned char)1 << k)) ? 1 : 0;
sprintf(&bitarray[j], (bitset) ? "1" : "0");
}
sprintf(&bitarray[8], " ");
sprintf(&bitarray[9], " ");
for (j = 10, k = 7; j < 18; j++, k--)
{
bitset = *(src_buff + offset2) & (((unsigned char)1 << k)) ? 1 : 0;
sprintf(&bitarray[j], (bitset) ? "1" : "0");
}
bitarray[18] = '\0';
fprintf (stderr, "Row: %3d Offset1: %d, Shift1: %d, Offset2: %d, Shift2: %d\n",
row, offset1, shift1, offset2, shift2);
#endif
bytebuff1 = bytebuff2 = 0;
if (shift1 == 0) /* the region is byte and sample alligned */
{
_TIFFmemcpy (sect_buff + dst_offset, src_buff + offset1, full_bytes);
#ifdef DEBUG2
fprintf (stderr, " Alligned data src offset1: %8d, Dst offset: %8d\n", offset1, dst_offset);
sprintf(&bitarray[18], "\n");
sprintf(&bitarray[19], "\t");
for (j = 20, k = 7; j < 28; j++, k--)
{
bitset = *(sect_buff + dst_offset) & (((unsigned char)1 << k)) ? 1 : 0;
sprintf(&bitarray[j], (bitset) ? "1" : "0");
}
bitarray[28] = ' ';
bitarray[29] = ' ';
#endif
dst_offset += full_bytes;
if (trailing_bits != 0)
{
bytebuff2 = src_buff[offset2] & ((unsigned char)255 << (7 - shift2));
sect_buff[dst_offset] = bytebuff2;
#ifdef DEBUG2
fprintf (stderr, " Trailing bits src offset: %8d, Dst offset: %8d\n",
offset2, dst_offset);
for (j = 30, k = 7; j < 38; j++, k--)
{
bitset = *(sect_buff + dst_offset) & (((unsigned char)1 << k)) ? 1 : 0;
sprintf(&bitarray[j], (bitset) ? "1" : "0");
}
bitarray[38] = '\0';
fprintf (stderr, "\tFirst and last bytes before and after masking:\n\t%s\n\n", bitarray);
#endif
dst_offset++;
}
}
else /* each destination byte will have to be built from two source bytes*/
{
#ifdef DEBUG2
fprintf (stderr, " Unalligned data src offset: %8d, Dst offset: %8d\n", offset1 , dst_offset);
#endif
for (j = 0; j <= full_bytes; j++)
{
bytebuff1 = src_buff[offset1 + j] & ((unsigned char)255 >> shift1);
bytebuff2 = src_buff[offset1 + j + 1] & ((unsigned char)255 << (7 - shift1));
sect_buff[dst_offset + j] = (bytebuff1 << shift1) | (bytebuff2 >> (8 - shift1));
}
#ifdef DEBUG2
sprintf(&bitarray[18], "\n");
sprintf(&bitarray[19], "\t");
for (j = 20, k = 7; j < 28; j++, k--)
{
bitset = *(sect_buff + dst_offset) & (((unsigned char)1 << k)) ? 1 : 0;
sprintf(&bitarray[j], (bitset) ? "1" : "0");
}
bitarray[28] = ' ';
bitarray[29] = ' ';
#endif
dst_offset += full_bytes;
if (trailing_bits != 0)
{
#ifdef DEBUG2
fprintf (stderr, " Trailing bits src offset: %8d, Dst offset: %8d\n", offset1 + full_bytes, dst_offset);
#endif
if (shift2 > shift1)
{
bytebuff1 = src_buff[offset1 + full_bytes] & ((unsigned char)255 << (7 - shift2));
bytebuff2 = bytebuff1 & ((unsigned char)255 << shift1);
sect_buff[dst_offset] = bytebuff2;
#ifdef DEBUG2
fprintf (stderr, " Shift2 > Shift1\n");
#endif
}
else
{
if (shift2 < shift1)
{
bytebuff2 = ((unsigned char)255 << (shift1 - shift2 - 1));
sect_buff[dst_offset] &= bytebuff2;
#ifdef DEBUG2
fprintf (stderr, " Shift2 < Shift1\n");
#endif
}
#ifdef DEBUG2
else
fprintf (stderr, " Shift2 == Shift1\n");
#endif
}
}
#ifdef DEBUG2
sprintf(&bitarray[28], " ");
sprintf(&bitarray[29], " ");
for (j = 30, k = 7; j < 38; j++, k--)
{
bitset = *(sect_buff + dst_offset) & (((unsigned char)1 << k)) ? 1 : 0;
sprintf(&bitarray[j], (bitset) ? "1" : "0");
}
bitarray[38] = '\0';
fprintf (stderr, "\tFirst and last bytes before and after masking:\n\t%s\n\n", bitarray);
#endif
dst_offset++;
}
}
}
return (0);
} /* end extractImageSection */
static int
writeSelections(TIFF *in, TIFF **out, struct crop_mask *crop,
struct buffinfo seg_buffs[], char *mp, char *filename,
unsigned int *page, unsigned int total_pages)
{
int i, page_count;
int autoindex = 0;
unsigned char *crop_buff = NULL;
/* Where we open a new file depends on the export mode */
switch (crop->exp_mode)
{
case ONE_FILE_COMPOSITE: /* Regions combined into single image */
autoindex = 0;
crop_buff = seg_buffs[0].buffer;
if (update_output_file (out, mp, autoindex, filename, page))
return (1);
page_count = total_pages;
if (writeCroppedImage(in, *out,
crop->combined_width,
crop->combined_length,
crop_buff, *page, total_pages))
{
TIFFError("writeRegions", "Unable to write new image");
return (-1);
}
break;
case ONE_FILE_SEPARATED: /* Regions as separated images */
autoindex = 0;
if (update_output_file (out, mp, autoindex, filename, page))
return (1);
page_count = crop->selections * total_pages;
for (i = 0; i < crop->selections; i++)
{
crop_buff = seg_buffs[i].buffer;
if (writeCroppedImage(in, *out,
crop->regionlist[i].width,
crop->regionlist[i].length,
crop_buff, *page, page_count))
{
TIFFError("writeRegions", "Unable to write new image");
return (-1);
}
}
break;
case FILE_PER_IMAGE_COMPOSITE: /* Regions as composite image */
autoindex = 1;
if (update_output_file (out, mp, autoindex, filename, page))
return (1);
crop_buff = seg_buffs[0].buffer;
if (writeCroppedImage(in, *out,
crop->combined_width,
crop->combined_length,
crop_buff, *page, total_pages))
{
TIFFError("writeRegions", "Unable to write new image");
return (-1);
}
break;
case FILE_PER_IMAGE_SEPARATED: /* Regions as separated images */
autoindex = 1;
page_count = crop->selections;
if (update_output_file (out, mp, autoindex, filename, page))
return (1);
for (i = 0; i < crop->selections; i++)
{
crop_buff = seg_buffs[i].buffer;
/* Write the current region to the current file */
if (writeCroppedImage(in, *out,
crop->regionlist[i].width,
crop->regionlist[i].length,
crop_buff, *page, page_count))
{
TIFFError("writeRegions", "Unable to write new image");
return (-1);
}
}
break;
case FILE_PER_SELECTION:
autoindex = 1;
page_count = 1;
for (i = 0; i < crop->selections; i++)
{
if (update_output_file (out, mp, autoindex, filename, page))
return (1);
crop_buff = seg_buffs[i].buffer;
/* Write the current region to the current file */
if (writeCroppedImage(in, *out,
crop->regionlist[i].width,
crop->regionlist[i].length,
crop_buff, *page, page_count))
{
TIFFError("writeRegions", "Unable to write new image");
return (-1);
}
}
break;
default: return (1);
}
return (0);
} /* end writeRegions */
static int
writeImageSections(TIFF *in, TIFF *out, struct image_data *image,
struct pagedef *page, struct pageseg *sections,
unsigned char *src_buff, unsigned char **sect_buff_ptr)
{
double hres, vres;
uint32 i, k, width, length, sectsize;
unsigned char *sect_buff = *sect_buff_ptr;
hres = page->hres;
vres = page->vres;
#ifdef DEBUG
fprintf(stderr,
"Writing %d sections for each original page. Hres: %3.2f Vres: %3.2f\n",
page->rows * page->cols, hres, vres);
#endif
k = page->cols * page->rows;
if ((k < 1) || (k > MAX_SECTIONS))
{
TIFFError("writeImageSections",
"%d Rows and Columns exceed maximum sections\nIncrease resolution or reduce sections", k);
return (-1);
}
for (i = 0; i < k; i++)
{
width = sections[i].x2 - sections[i].x1 + 1;
length = sections[i].y2 - sections[i].y1 + 1;
sectsize = (uint32)
ceil((width * image->bps + 7) / (double)8) * image->spp * length;
/* allocate a buffer if we don't have one already */
if (createImageSection(sectsize, sect_buff_ptr))
{
TIFFError("writeImageSections", "Unable to allocate section buffer");
exit (-1);
}
sect_buff = *sect_buff_ptr;
#ifdef DEBUG
fprintf (stderr, "\nSection: %d, Width: %4d, Length: %4d, x1: %4d x2: %4d y1: %4d y2: %4d\n",
i + 1, width, length, sections[i].x1, sections[i].x2, sections[i].y1, sections[i].y2);
#endif
if (extractImageSection (image, &sections[i], src_buff, sect_buff))
{
TIFFError("writeImageSections", "Unable to extract image sections");
exit (-1);
}
/* call the write routine here instead of outside the loop */
if (writeSingleSection(in, out, width, length, hres, vres, sect_buff))
{
TIFFError("writeImageSections", "Unable to write image section");
exit (-1);
}
}
return (0);
} /* end writeImageSections */
static int
writeSingleSection(TIFF *in, TIFF *out, uint32 width, uint32 length,
double hres, double vres, unsigned char *sect_buff)
{
uint16 bps, spp;
struct cpTag* p;
#ifdef DEBUG
fprintf (stderr,
"\nWriting single section: Width %d Length: %d Hres: %4.1f, Vres: %4.1f\n\n",
width, length, hres, vres);
#endif
TIFFSetField(out, TIFFTAG_IMAGEWIDTH, width);
TIFFSetField(out, TIFFTAG_IMAGELENGTH, length);
CopyField(TIFFTAG_BITSPERSAMPLE, bps);
CopyField(TIFFTAG_SAMPLESPERPIXEL, spp);
if (compression != (uint16)-1)
TIFFSetField(out, TIFFTAG_COMPRESSION, compression);
else
CopyField(TIFFTAG_COMPRESSION, compression);
if (compression == COMPRESSION_JPEG) {
uint16 input_compression, input_photometric;
if (TIFFGetField(in, TIFFTAG_COMPRESSION, &input_compression)
&& input_compression == COMPRESSION_JPEG) {
TIFFSetField(in, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RGB);
}
if (TIFFGetField(in, TIFFTAG_PHOTOMETRIC, &input_photometric)) {
if(input_photometric == PHOTOMETRIC_RGB) {
if (jpegcolormode == JPEGCOLORMODE_RGB)
TIFFSetField(out, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_YCBCR);
else
TIFFSetField(out, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
} else
TIFFSetField(out, TIFFTAG_PHOTOMETRIC, input_photometric);
}
}
else if (compression == COMPRESSION_SGILOG || compression == COMPRESSION_SGILOG24)
TIFFSetField(out, TIFFTAG_PHOTOMETRIC, spp == 1 ?
PHOTOMETRIC_LOGL : PHOTOMETRIC_LOGLUV);
else
CopyTag(TIFFTAG_PHOTOMETRIC, 1, TIFF_SHORT);
if (fillorder != 0)
TIFFSetField(out, TIFFTAG_FILLORDER, fillorder);
else
CopyTag(TIFFTAG_FILLORDER, 1, TIFF_SHORT);
/*
* Will copy `Orientation' tag from input image
*/
TIFFGetFieldDefaulted(in, TIFFTAG_ORIENTATION, &orientation);
switch (orientation) {
case ORIENTATION_BOTRIGHT:
case ORIENTATION_RIGHTBOT: /* XXX */
TIFFWarning(TIFFFileName(in), "using bottom-left orientation");
orientation = ORIENTATION_BOTLEFT;
/* fall thru... */
case ORIENTATION_LEFTBOT: /* XXX */
case ORIENTATION_BOTLEFT:
break;
case ORIENTATION_TOPRIGHT:
case ORIENTATION_RIGHTTOP: /* XXX */
default:
TIFFWarning(TIFFFileName(in), "using top-left orientation");
orientation = ORIENTATION_TOPLEFT;
/* fall thru... */
case ORIENTATION_LEFTTOP: /* XXX */
case ORIENTATION_TOPLEFT:
break;
}
TIFFSetField(out, TIFFTAG_ORIENTATION, orientation);
/*
* Choose tiles/strip for the output image according to
* the command line arguments (-tiles, -strips) and the
* structure of the input image.
*/
if (outtiled == -1)
outtiled = TIFFIsTiled(in);
if (outtiled) {
/*
* Setup output file's tile width&height. If either
* is not specified, use either the value from the
* input image or, if nothing is defined, use the
* library default.
*/
if (tilewidth == (uint32) -1)
TIFFGetField(in, TIFFTAG_TILEWIDTH, &tilewidth);
if (tilelength == (uint32) -1)
TIFFGetField(in, TIFFTAG_TILELENGTH, &tilelength);
if (tilewidth > width)
tilewidth = width;
if (tilelength > length)
tilelength = length;
TIFFDefaultTileSize(out, &tilewidth, &tilelength);
TIFFSetField(out, TIFFTAG_TILEWIDTH, tilewidth);
TIFFSetField(out, TIFFTAG_TILELENGTH, tilelength);
} else {
/*
* RowsPerStrip is left unspecified: use either the
* value from the input image or, if nothing is defined,
* use the library default.
*/
if (rowsperstrip == (uint32) 0) {
if (!TIFFGetField(in, TIFFTAG_ROWSPERSTRIP, &rowsperstrip)) {
rowsperstrip = TIFFDefaultStripSize(out, rowsperstrip);
}
if (rowsperstrip > length && rowsperstrip != (uint32)-1)
rowsperstrip = length;
}
else if (rowsperstrip == (uint32) -1)
rowsperstrip = length;
TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, rowsperstrip);
}
if (config != (uint16) -1)
TIFFSetField(out, TIFFTAG_PLANARCONFIG, config);
else
CopyField(TIFFTAG_PLANARCONFIG, config);
if (spp <= 4)
CopyTag(TIFFTAG_TRANSFERFUNCTION, 4, TIFF_SHORT);
CopyTag(TIFFTAG_COLORMAP, 4, TIFF_SHORT);
/* SMinSampleValue & SMaxSampleValue */
switch (compression) {
case COMPRESSION_JPEG:
TIFFSetField(out, TIFFTAG_JPEGQUALITY, quality);
TIFFSetField(out, TIFFTAG_JPEGCOLORMODE, jpegcolormode);
break;
case COMPRESSION_LZW:
case COMPRESSION_ADOBE_DEFLATE:
case COMPRESSION_DEFLATE:
if (predictor != (uint16)-1)
TIFFSetField(out, TIFFTAG_PREDICTOR, predictor);
else
CopyField(TIFFTAG_PREDICTOR, predictor);
break;
case COMPRESSION_CCITTFAX3:
case COMPRESSION_CCITTFAX4:
if (compression == COMPRESSION_CCITTFAX3) {
if (g3opts != (uint32) -1)
TIFFSetField(out, TIFFTAG_GROUP3OPTIONS, g3opts);
else
CopyField(TIFFTAG_GROUP3OPTIONS, g3opts);
} else
CopyTag(TIFFTAG_GROUP4OPTIONS, 1, TIFF_LONG);
CopyTag(TIFFTAG_BADFAXLINES, 1, TIFF_LONG);
CopyTag(TIFFTAG_CLEANFAXDATA, 1, TIFF_LONG);
CopyTag(TIFFTAG_CONSECUTIVEBADFAXLINES, 1, TIFF_LONG);
CopyTag(TIFFTAG_FAXRECVPARAMS, 1, TIFF_LONG);
CopyTag(TIFFTAG_FAXRECVTIME, 1, TIFF_LONG);
CopyTag(TIFFTAG_FAXSUBADDRESS, 1, TIFF_ASCII);
break;
}
{ uint32 len32;
void** data;
if (TIFFGetField(in, TIFFTAG_ICCPROFILE, &len32, &data))
TIFFSetField(out, TIFFTAG_ICCPROFILE, len32, data);
}
{ uint16 ninks;
const char* inknames;
if (TIFFGetField(in, TIFFTAG_NUMBEROFINKS, &ninks)) {
TIFFSetField(out, TIFFTAG_NUMBEROFINKS, ninks);
if (TIFFGetField(in, TIFFTAG_INKNAMES, &inknames)) {
int inknameslen = strlen(inknames) + 1;
const char* cp = inknames;
while (ninks > 1) {
cp = strchr(cp, '\0');
if (cp) {
cp++;
inknameslen += (strlen(cp) + 1);
}
ninks--;
}
TIFFSetField(out, TIFFTAG_INKNAMES, inknameslen, inknames);
}
}
}
{
unsigned short pg0, pg1;
if (TIFFGetField(in, TIFFTAG_PAGENUMBER, &pg0, &pg1)) {
if (pageNum < 0) /* only one input file */
TIFFSetField(out, TIFFTAG_PAGENUMBER, pg0, pg1);
else
TIFFSetField(out, TIFFTAG_PAGENUMBER, pageNum++, 0);
}
}
for (p = tags; p < &tags[NTAGS]; p++)
CopyTag(p->tag, p->count, p->type);
/* Update these since they are overwritten from input res by loop above */
TIFFSetField(out, TIFFTAG_XRESOLUTION, (float)hres);
TIFFSetField(out, TIFFTAG_YRESOLUTION, (float)vres);
/* Compute the tile or strip dimensions and write to disk */
if (outtiled)
{
if (config == PLANARCONFIG_CONTIG)
{
writeBufferToContigTiles (out, sect_buff, length, width, spp);
}
else
writeBufferToSeparateTiles (out, sect_buff, length, width, spp);
}
else
{
if (config == PLANARCONFIG_CONTIG)
{
writeBufferToContigStrips (out, sect_buff, length, width, spp);
}
else
{
writeBufferToSeparateStrips(out, sect_buff, length, width, spp);
}
}
if (!TIFFWriteDirectory(out))
{
TIFFClose(out);
return (-1);
}
return (0);
} /* end writeSingleSection */
/* Create a buffer to write one section at a time */
static int
createImageSection(uint32 sectsize, unsigned char **sect_buff_ptr)
{
unsigned char *sect_buff = NULL;
unsigned char *new_buff = NULL;
static uint32 prev_sectsize = 0;
sect_buff = *sect_buff_ptr;
if (!sect_buff)
{
sect_buff = (unsigned char *)_TIFFmalloc(sectsize);
*sect_buff_ptr = sect_buff;
_TIFFmemset(sect_buff, 0, sectsize);
}
else
{
if (prev_sectsize < sectsize)
{
new_buff = _TIFFrealloc(sect_buff, sectsize);
if (!new_buff)
{
free (sect_buff);
sect_buff = (unsigned char *)_TIFFmalloc(sectsize);
}
else
sect_buff = new_buff;
_TIFFmemset(sect_buff, 0, sectsize);
}
}
if (!sect_buff)
{
TIFFError("createImageSection", "Unable to allocate/reallocate section buffer");
return (-1);
}
prev_sectsize = sectsize;
*sect_buff_ptr = sect_buff;
return (0);
} /* end createImageSection */
/* Process selections defined by regions, zones, margins, or fixed sized areas */
static int
processCropSelections(struct image_data *image, struct crop_mask *crop,
unsigned char **read_buff_ptr, struct buffinfo seg_buffs[])
{
int i;
uint32 width, length, total_width, total_length;
tsize_t cropsize;
unsigned char *crop_buff = NULL;
unsigned char *read_buff = NULL;
unsigned char *next_buff = NULL;
tsize_t prev_cropsize = 0;
read_buff = *read_buff_ptr;
if (crop->img_mode == COMPOSITE_IMAGES)
{
cropsize = crop->bufftotal;
crop_buff = seg_buffs[0].buffer;
if (!crop_buff)
crop_buff = (unsigned char *)_TIFFmalloc(cropsize);
else
{
prev_cropsize = seg_buffs[0].size;
if (prev_cropsize < cropsize)
{
next_buff = _TIFFrealloc(crop_buff, cropsize);
if (! next_buff)
{
_TIFFfree (crop_buff);
crop_buff = (unsigned char *)_TIFFmalloc(cropsize);
}
else
crop_buff = next_buff;
}
}
if (!crop_buff)
{
TIFFError("processCropSelections", "Unable to allocate/reallocate crop buffer");
return (-1);
}
_TIFFmemset(crop_buff, 0, cropsize);
seg_buffs[0].buffer = crop_buff;
seg_buffs[0].size = cropsize;
/* Checks for matching width or length as required */
if (extractCompositeRegions(image, crop, read_buff, crop_buff) != 0)
return (1);
if (crop->crop_mode & CROP_INVERT)
{
switch (crop->photometric)
{
/* Just change the interpretation */
case PHOTOMETRIC_MINISWHITE:
case PHOTOMETRIC_MINISBLACK:
image->photometric = crop->photometric;
break;
case INVERT_DATA_ONLY:
case INVERT_DATA_AND_TAG:
if (invertImage(image->photometric, image->spp, image->bps,
crop->combined_width, crop->combined_length, crop_buff))
{
TIFFError("processCropRegions",
"Failed to invert colorspace for composite regions");
return (-1);
}
if (crop->photometric == INVERT_DATA_AND_TAG)
{
switch (image->photometric)
{
case PHOTOMETRIC_MINISWHITE:
image->photometric = PHOTOMETRIC_MINISBLACK;
break;
case PHOTOMETRIC_MINISBLACK:
image->photometric = PHOTOMETRIC_MINISWHITE;
break;
default:
break;
}
}
break;
default: break;
}
}
/* Mirror and Rotate will not work with multiple regions unless they are the same width */
if (crop->crop_mode & CROP_MIRROR)
{
if (mirrorImage(image->spp, image->bps, crop->mirror,
crop->combined_width, crop->combined_length, crop_buff))
{
TIFFError("processCropRegions", "Failed to mirror composite regions %s",
(crop->rotation == MIRROR_HORIZ) ? "horizontally" : "vertically");
return (-1);
}
}
if (crop->crop_mode & CROP_ROTATE) /* rotate should be last as it can reallocate the buffer */
{
if (rotateImage(crop->rotation, image, &crop->combined_width,
&crop->combined_length, &crop_buff))
{
TIFFError("processCropRegions",
"Failed to rotate composite regions by %d degrees", crop->rotation);
return (-1);
}
seg_buffs[0].buffer = crop_buff;
seg_buffs[0].size = (((crop->combined_width * image->bps + 7 ) / 8)
* image->spp) * crop->combined_length;
}
}
else /* Separated Images */
{
total_width = total_length = 0;
for (i = 0; i < crop->selections; i++)
{
cropsize = crop->bufftotal;
crop_buff = seg_buffs[i].buffer;
if (!crop_buff)
crop_buff = (unsigned char *)_TIFFmalloc(cropsize);
else
{
prev_cropsize = seg_buffs[0].size;
if (prev_cropsize < cropsize)
{
next_buff = _TIFFrealloc(crop_buff, cropsize);
if (! next_buff)
{
_TIFFfree (crop_buff);
crop_buff = (unsigned char *)_TIFFmalloc(cropsize);
}
else
crop_buff = next_buff;
}
}
if (!crop_buff)
{
TIFFError("processCropSelections", "Unable to allocate/reallocate crop buffer");
return (-1);
}
_TIFFmemset(crop_buff, 0, cropsize);
seg_buffs[i].buffer = crop_buff;
seg_buffs[i].size = cropsize;
if (extractSeparateRegion(image, crop, read_buff, crop_buff, i))
{
TIFFError("processCropRegions", "Unable to extract cropped region %d from image", i);
return (-1);
}
width = crop->regionlist[i].width;
length = crop->regionlist[i].length;
if (crop->crop_mode & CROP_INVERT)
{
switch (crop->photometric)
{
/* Just change the interpretation */
case PHOTOMETRIC_MINISWHITE:
case PHOTOMETRIC_MINISBLACK:
image->photometric = crop->photometric;
break;
case INVERT_DATA_ONLY:
case INVERT_DATA_AND_TAG:
if (invertImage(image->photometric, image->spp, image->bps,
width, length, crop_buff))
{
TIFFError("processCropRegions",
"Failed to invert colorspace for region");
return (-1);
}
if (crop->photometric == INVERT_DATA_AND_TAG)
{
switch (image->photometric)
{
case PHOTOMETRIC_MINISWHITE:
image->photometric = PHOTOMETRIC_MINISBLACK;
break;
case PHOTOMETRIC_MINISBLACK:
image->photometric = PHOTOMETRIC_MINISWHITE;
break;
default:
break;
}
}
break;
default: break;
}
}
if (crop->crop_mode & CROP_MIRROR)
{
if (mirrorImage(image->spp, image->bps, crop->mirror,
width, length, crop_buff))
{
TIFFError("processCropRegions", "Failed to mirror crop region %s",
(crop->rotation == MIRROR_HORIZ) ? "horizontally" : "vertically");
return (-1);
}
}
if (crop->crop_mode & CROP_ROTATE) /* rotate should be last as it can reallocate the buffer */
{
if (rotateImage(crop->rotation, image, &crop->regionlist[i].width,
&crop->regionlist[i].length, &crop_buff))
{
TIFFError("processCropRegions",
"Failed to rotate crop region by %d degrees", crop->rotation);
return (-1);
}
total_width += crop->regionlist[i].width;
total_length += crop->regionlist[i].length;
crop->combined_width = total_width;
crop->combined_length = total_length;
seg_buffs[i].buffer = crop_buff;
seg_buffs[i].size = (((crop->regionlist[i].width * image->bps + 7 ) / 8)
* image->spp) * crop->regionlist[i].length;
}
}
}
return (0);
} /* end processCropSelections */
/* Copy the crop section of the data from the current image into a buffer
* and adjust the IFD values to reflect the new size. If no cropping is
* required, use the origial read buffer as the crop buffer.
*
* There is quite a bit of redundancy between this routine and the more
* specialized processCropZones and processCropRegions, but this provides
* the most optimized path when no Zones or Regions are required.
*/
static int
createCroppedImage(struct image_data *image, struct crop_mask *crop,
unsigned char **read_buff_ptr, unsigned char **crop_buff_ptr)
{
tsize_t cropsize;
unsigned char *read_buff = NULL;
unsigned char *crop_buff = NULL;
unsigned char *new_buff = NULL;
static tsize_t prev_cropsize = 0;
read_buff = *read_buff_ptr;
/* process full image, no crop buffer needed */
crop_buff = read_buff;
*crop_buff_ptr = read_buff;
crop->combined_width = image->width;
crop->combined_length = image->length;
cropsize = crop->bufftotal;
crop_buff = *crop_buff_ptr;
if (!crop_buff)
{
crop_buff = (unsigned char *)_TIFFmalloc(cropsize);
*crop_buff_ptr = crop_buff;
_TIFFmemset(crop_buff, 0, cropsize);
prev_cropsize = cropsize;
}
else
{
if (prev_cropsize < cropsize)
{
new_buff = _TIFFrealloc(crop_buff, cropsize);
if (!new_buff)
{
free (crop_buff);
crop_buff = (unsigned char *)_TIFFmalloc(cropsize);
}
else
crop_buff = new_buff;
_TIFFmemset(crop_buff, 0, cropsize);
}
}
if (!crop_buff)
{
TIFFError("createCroppedImage", "Unable to allocate/reallocate crop buffer");
return (-1);
}
*crop_buff_ptr = crop_buff;
if (crop->crop_mode & CROP_INVERT)
{
switch (crop->photometric)
{
/* Just change the interpretation */
case PHOTOMETRIC_MINISWHITE:
case PHOTOMETRIC_MINISBLACK:
image->photometric = crop->photometric;
break;
case INVERT_DATA_ONLY:
case INVERT_DATA_AND_TAG:
if (invertImage(image->photometric, image->spp, image->bps,
crop->combined_width, crop->combined_length, crop_buff))
{
TIFFError("createCroppedImage",
"Failed to invert colorspace for image or cropped selection");
return (-1);
}
if (crop->photometric == INVERT_DATA_AND_TAG)
{
switch (image->photometric)
{
case PHOTOMETRIC_MINISWHITE:
image->photometric = PHOTOMETRIC_MINISBLACK;
break;
case PHOTOMETRIC_MINISBLACK:
image->photometric = PHOTOMETRIC_MINISWHITE;
break;
default:
break;
}
}
break;
default: break;
}
}
if (crop->crop_mode & CROP_MIRROR)
{
if (mirrorImage(image->spp, image->bps, crop->mirror,
crop->combined_width, crop->combined_length, crop_buff))
{
TIFFError("createCroppedImage", "Failed to mirror image or cropped selection %s",
(crop->rotation == MIRROR_HORIZ) ? "horizontally" : "vertically");
return (-1);
}
}
if (crop->crop_mode & CROP_ROTATE) /* rotate should be last as it can reallocate the buffer */
{
if (rotateImage(crop->rotation, image, &crop->combined_width,
&crop->combined_length, crop_buff_ptr))
{
TIFFError("createCroppedImage",
"Failed to rotate image or cropped selection by %d degrees", crop->rotation);
return (-1);
}
}
if (crop_buff == read_buff) /* we used the read buffer for the crop buffer */
*read_buff_ptr = NULL; /* so we don't try to free it later */
return (0);
} /* end createCroppedImage */
static int
writeCroppedImage(TIFF *in, TIFF *out, uint32 width, uint32 length,
unsigned char *crop_buff, int pagenum, int total_pages)
{
uint16 bps, spp;
struct cpTag* p;
TIFFSetField(out, TIFFTAG_IMAGEWIDTH, width);
TIFFSetField(out, TIFFTAG_IMAGELENGTH, length);
CopyField(TIFFTAG_BITSPERSAMPLE, bps);
CopyField(TIFFTAG_SAMPLESPERPIXEL, spp);
if (compression != (uint16)-1)
TIFFSetField(out, TIFFTAG_COMPRESSION, compression);
else
CopyField(TIFFTAG_COMPRESSION, compression);
if (compression == COMPRESSION_JPEG) {
uint16 input_compression, input_photometric;
if (TIFFGetField(in, TIFFTAG_COMPRESSION, &input_compression)
&& input_compression == COMPRESSION_JPEG) {
TIFFSetField(in, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RGB);
}
if (TIFFGetField(in, TIFFTAG_PHOTOMETRIC, &input_photometric)) {
if(input_photometric == PHOTOMETRIC_RGB) {
if (jpegcolormode == JPEGCOLORMODE_RGB)
TIFFSetField(out, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_YCBCR);
else
TIFFSetField(out, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
} else
TIFFSetField(out, TIFFTAG_PHOTOMETRIC, input_photometric);
}
}
else if (compression == COMPRESSION_SGILOG || compression == COMPRESSION_SGILOG24)
TIFFSetField(out, TIFFTAG_PHOTOMETRIC, spp == 1 ?
PHOTOMETRIC_LOGL : PHOTOMETRIC_LOGLUV);
else
CopyTag(TIFFTAG_PHOTOMETRIC, 1, TIFF_SHORT);
if (fillorder != 0)
TIFFSetField(out, TIFFTAG_FILLORDER, fillorder);
else
CopyTag(TIFFTAG_FILLORDER, 1, TIFF_SHORT);
/*
* Will copy `Orientation' tag from input image
*/
TIFFGetFieldDefaulted(in, TIFFTAG_ORIENTATION, &orientation);
switch (orientation) {
case ORIENTATION_BOTRIGHT:
case ORIENTATION_RIGHTBOT: /* XXX */
TIFFWarning(TIFFFileName(in), "using bottom-left orientation");
orientation = ORIENTATION_BOTLEFT;
/* fall thru... */
case ORIENTATION_LEFTBOT: /* XXX */
case ORIENTATION_BOTLEFT:
break;
case ORIENTATION_TOPRIGHT:
case ORIENTATION_RIGHTTOP: /* XXX */
default:
TIFFWarning(TIFFFileName(in), "using top-left orientation");
orientation = ORIENTATION_TOPLEFT;
/* fall thru... */
case ORIENTATION_LEFTTOP: /* XXX */
case ORIENTATION_TOPLEFT:
break;
}
TIFFSetField(out, TIFFTAG_ORIENTATION, orientation);
/*
* Choose tiles/strip for the output image according to
* the command line arguments (-tiles, -strips) and the
* structure of the input image.
*/
if (outtiled == -1)
outtiled = TIFFIsTiled(in);
if (outtiled) {
/*
* Setup output file's tile width&height. If either
* is not specified, use either the value from the
* input image or, if nothing is defined, use the
* library default.
*/
if (tilewidth == (uint32) -1)
TIFFGetField(in, TIFFTAG_TILEWIDTH, &tilewidth);
if (tilelength == (uint32) -1)
TIFFGetField(in, TIFFTAG_TILELENGTH, &tilelength);
if (tilewidth > width)
tilewidth = width;
if (tilelength > length)
tilelength = length;
TIFFDefaultTileSize(out, &tilewidth, &tilelength);
TIFFSetField(out, TIFFTAG_TILEWIDTH, tilewidth);
TIFFSetField(out, TIFFTAG_TILELENGTH, tilelength);
} else {
/*
* RowsPerStrip is left unspecified: use either the
* value from the input image or, if nothing is defined,
* use the library default.
*/
if (rowsperstrip == (uint32) 0) {
if (!TIFFGetField(in, TIFFTAG_ROWSPERSTRIP, &rowsperstrip)) {
rowsperstrip = TIFFDefaultStripSize(out, rowsperstrip);
}
if (rowsperstrip > length)
rowsperstrip = length;
}
else if (rowsperstrip == (uint32) -1)
rowsperstrip = length;
TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, rowsperstrip);
}
if (config != (uint16) -1)
TIFFSetField(out, TIFFTAG_PLANARCONFIG, config);
else
CopyField(TIFFTAG_PLANARCONFIG, config);
if (spp <= 4)
CopyTag(TIFFTAG_TRANSFERFUNCTION, 4, TIFF_SHORT);
CopyTag(TIFFTAG_COLORMAP, 4, TIFF_SHORT);
/* SMinSampleValue & SMaxSampleValue */
switch (compression) {
case COMPRESSION_JPEG:
TIFFSetField(out, TIFFTAG_JPEGQUALITY, quality);
TIFFSetField(out, TIFFTAG_JPEGCOLORMODE, jpegcolormode);
break;
case COMPRESSION_LZW:
case COMPRESSION_ADOBE_DEFLATE:
case COMPRESSION_DEFLATE:
if (predictor != (uint16)-1)
TIFFSetField(out, TIFFTAG_PREDICTOR, predictor);
else
CopyField(TIFFTAG_PREDICTOR, predictor);
break;
case COMPRESSION_CCITTFAX3:
case COMPRESSION_CCITTFAX4:
if (compression == COMPRESSION_CCITTFAX3) {
if (g3opts != (uint32) -1)
TIFFSetField(out, TIFFTAG_GROUP3OPTIONS, g3opts);
else
CopyField(TIFFTAG_GROUP3OPTIONS, g3opts);
} else
CopyTag(TIFFTAG_GROUP4OPTIONS, 1, TIFF_LONG);
CopyTag(TIFFTAG_BADFAXLINES, 1, TIFF_LONG);
CopyTag(TIFFTAG_CLEANFAXDATA, 1, TIFF_LONG);
CopyTag(TIFFTAG_CONSECUTIVEBADFAXLINES, 1, TIFF_LONG);
CopyTag(TIFFTAG_FAXRECVPARAMS, 1, TIFF_LONG);
CopyTag(TIFFTAG_FAXRECVTIME, 1, TIFF_LONG);
CopyTag(TIFFTAG_FAXSUBADDRESS, 1, TIFF_ASCII);
break;
}
{ uint32 len32;
void** data;
if (TIFFGetField(in, TIFFTAG_ICCPROFILE, &len32, &data))
TIFFSetField(out, TIFFTAG_ICCPROFILE, len32, data);
}
{ uint16 ninks;
const char* inknames;
if (TIFFGetField(in, TIFFTAG_NUMBEROFINKS, &ninks)) {
TIFFSetField(out, TIFFTAG_NUMBEROFINKS, ninks);
if (TIFFGetField(in, TIFFTAG_INKNAMES, &inknames)) {
int inknameslen = strlen(inknames) + 1;
const char* cp = inknames;
while (ninks > 1) {
cp = strchr(cp, '\0');
if (cp) {
cp++;
inknameslen += (strlen(cp) + 1);
}
ninks--;
}
TIFFSetField(out, TIFFTAG_INKNAMES, inknameslen, inknames);
}
}
}
{
unsigned short pg0, pg1;
if (TIFFGetField(in, TIFFTAG_PAGENUMBER, &pg0, &pg1)) {
TIFFSetField(out, TIFFTAG_PAGENUMBER, pagenum, total_pages);
}
}
for (p = tags; p < &tags[NTAGS]; p++)
CopyTag(p->tag, p->count, p->type);
/* Compute the tile or strip dimensions and write to disk */
if (outtiled)
{
if (config == PLANARCONFIG_CONTIG)
{
writeBufferToContigTiles (out, crop_buff, length, width, spp);
}
else
writeBufferToSeparateTiles (out, crop_buff, length, width, spp);
}
else
{
if (config == PLANARCONFIG_CONTIG)
{
writeBufferToContigStrips (out, crop_buff, length, width, spp);
}
else
{
writeBufferToSeparateStrips(out, crop_buff, length, width, spp);
}
}
if (!TIFFWriteDirectory(out))
{
TIFFClose(out);
return (-1);
}
return (0);
}
/* Rotate an image by a multiple of 90 degrees clockwise */
static int
rotateImage(uint16 rotation, struct image_data *image, uint32 *img_width,
uint32 *img_length, unsigned char **crop_buff_ptr)
{
uint32 i, row, col, width, length, full_bytes, trailing_bits;
uint32 rowsize, colsize, buffsize, row_offset, col_offset, pix_offset;
unsigned char bitset, bytebuff1, bytebuff2, bytes_per_pixel;
unsigned char *crop_buff = *crop_buff_ptr;
unsigned char *src_ptr;
unsigned char *dst_ptr;
uint16 spp, bps;
float res_temp;
int j, k;
static unsigned char *rotate_buff = NULL;
width = *img_width;
length = *img_length;
spp = image->spp;
bps = image->bps;
rowsize = (width * bps + 7) / 8;
colsize = (length * bps + 7) / 8;
bytes_per_pixel = (spp * bps + 7) / 8;
full_bytes = width * spp * bps / 8;
pix_offset = (spp * bps) / 8;
/* rotating image may change the end of line padding and increase buffer size */
switch (rotation)
{
case 90:
case 180:
case 270: buffsize = spp * (colsize + 1) * (rowsize + 1) * 8;
break;
default: TIFFError("rotateImage", "Invalid rotation angle %d", rotation);
return (-1);
break;
}
if (!(rotate_buff = (unsigned char *)_TIFFmalloc(buffsize)))
{
TIFFError("rotateImage", "Unable to allocate rotation buffer of %1u bytes", buffsize);
return (-1);
}
_TIFFmemset(rotate_buff, '\0', buffsize);
src_ptr = crop_buff;
switch (rotation)
{
case 180: if ((bps % 8) == 0) /* byte alligned data */
{
for (row = 0; row < length; row++)
{
row_offset = (length - row - 1) * rowsize * spp;
for (col = 0; col < width; col++)
{
col_offset = (width - col - 1) * pix_offset;
dst_ptr = rotate_buff + row_offset + col_offset;
for (i = 0; i < bytes_per_pixel; i++)
*dst_ptr++ = *src_ptr++;
}
}
}
else
{ /* non 8 bit per pixel data */
trailing_bits = (width * spp * bps) % 8;
for (row = 0; row < length; row++)
{
src_ptr = crop_buff + row * rowsize * spp;
row_offset = (length - row - 1) * rowsize * spp;
col_offset = (rowsize * spp) - 1;
dst_ptr = rotate_buff + row_offset + col_offset;
if ((width % 8) == 0)
{
for (col = 0; col < rowsize; col++)
{
for (i = 0, j = 7; i < 8; i++, j--)
{
bitset = ((*src_ptr) & (((unsigned char)1 << j)) ? 1 : 0);
*dst_ptr |= (bitset << i);
}
src_ptr++;
dst_ptr--;
}
}
else
{
bytebuff2 = 0;
for (i = 0, j = 7; i < trailing_bits; i++, j--)
{
bitset = ((*src_ptr) & (((unsigned char)1 << j)) ? 1 : 0);
bytebuff2 |= bitset << (8 - trailing_bits + i);
}
*(dst_ptr--) = bytebuff2;
for (col = 0; col < full_bytes; col++)
{
bytebuff1 = *(src_ptr) & ((unsigned char)255 >> trailing_bits);
bytebuff2 = *(src_ptr + 1) & ((unsigned char)255 << (8 - trailing_bits));
*dst_ptr = (bytebuff1 << trailing_bits) | (bytebuff2 >> (8 - trailing_bits));
TIFFReverseBits(dst_ptr, 1);
src_ptr++;
dst_ptr--;
}
}
}
}
_TIFFfree(crop_buff);
*(crop_buff_ptr) = rotate_buff;
break;
case 90: if ((bps % 8) == 0) /* byte aligned data */
{
for (row = 0; row < length; row++)
{
dst_ptr = rotate_buff + (spp * colsize) - ((row + 1) * bytes_per_pixel);
for (col = 0; col < width; col++)
{
for (i = 0; i < bytes_per_pixel; i++)
*(dst_ptr + i) = *src_ptr++;
dst_ptr += (spp * colsize);
}
}
}
else
{
trailing_bits = (length * spp * bps) % 8;
for (row = 0; row < length; row++)
{
if ((length % 8) == 0)
dst_ptr = rotate_buff + colsize - (row / 8);
else
dst_ptr = rotate_buff + colsize - (row / 8) - 1;
for (col = 0; col < width; col+= 8 /(bps * spp))
{
for (i = 0, j = 7; i < 8; i++, j--)
{
if (col + i < width)
{
bitset = ((*src_ptr) & (((unsigned char)1 << j)) ? 1 : 0);
k = (row % 8) + (8 - trailing_bits);
if (k > 7)
{
*(dst_ptr - 1) |= (bitset << ((row % 8) - trailing_bits));
}
else
{
*(dst_ptr) |= (bitset << ((row % 8) + (8 - trailing_bits)));
}
dst_ptr += colsize;
}
}
src_ptr++;
}
}
}
_TIFFfree(crop_buff);
*(crop_buff_ptr) = rotate_buff;
*img_width = length;
*img_length = width;
image->width = length;
image->length = width;
res_temp = image->xres;
image->xres = image->yres;
image->yres = res_temp;
break;
case 270: if ((bps % 8) == 0) /* byte aligned data */
{
for (row = 0; row < length; row++)
{
dst_ptr = rotate_buff + (spp * rowsize * length) + (row * bytes_per_pixel);
for (col = 0; col < width; col++)
{
for (i = 0; i < bytes_per_pixel; i++)
*(dst_ptr + i) = *src_ptr++;
dst_ptr -= (spp * colsize);
}
}
}
else
{
for (row = 0; row < length; row++)
{
dst_ptr = rotate_buff + (colsize * width) + (row / 8);
for (col = 0; col < width; col+= 8 /(bps * spp))
{
for (i = 0, j = 7; i < 8; i++, j--)
{
if (col + i < width)
{
bitset = ((*src_ptr) & (((unsigned char)1 << j)) ? 1 : 0);
dst_ptr -= colsize;
*(dst_ptr) |= (bitset << ( 7 - (row % 8)));
}
}
src_ptr++;
}
}
}
_TIFFfree(crop_buff);
*(crop_buff_ptr) = rotate_buff;
*img_width = length;
*img_length = width;
image->width = length;
image->length = width;
break;
default:
break;
}
return (0);
}
/* Mirror an image horizontally or vertically */
static int
mirrorImage(uint16 spp, uint16 bps, uint16 mirror, uint32 width, uint32 length, unsigned char *crop_buff)
{
uint32 i, j, row, col, full_bytes, trailing_bits;
uint32 rowsize, colsize, row_offset, col_offset, pix_offset;
unsigned char bytebuff1, bytebuff2, bytes_per_pixel, bitset;
unsigned char *line_buff = NULL;
unsigned char *src_ptr;
unsigned char *dst_ptr;
unsigned char workbuff[12];
rowsize = (width * bps + 7) / 8;
colsize = (length * bps + 7) / 8;
bytes_per_pixel = (spp * bps + 7) / 8;
full_bytes = width * spp * bps / 8;
trailing_bits = (width * bps) % 8;
pix_offset = (spp * bps) / 8;
src_ptr = crop_buff;
switch (mirror)
{
case MIRROR_HORIZ :
if ((bps % 8) == 0) /* byte alligned data */
{
switch (bps / 8)
{
case 2:
for (row = 0; row < length; row++)
{
row_offset = row * rowsize * spp;
src_ptr = crop_buff + row_offset;
dst_ptr = crop_buff + row_offset + (spp * rowsize);
for (col = 0; col < (width / 2); col++)
{
col_offset = col * bytes_per_pixel;
_TIFFmemcpy (workbuff, src_ptr + col_offset, bytes_per_pixel);
_TIFFmemcpy (src_ptr + col_offset, dst_ptr - col_offset - bytes_per_pixel, bytes_per_pixel);
_TIFFmemcpy (dst_ptr - col_offset - bytes_per_pixel, workbuff, bytes_per_pixel);
}
}
break;
case 1:
for (row = 0; row < length; row++)
{
row_offset = row * rowsize * spp;
src_ptr = crop_buff + row_offset;
dst_ptr = src_ptr + (spp * rowsize);
for (col = 0; col < (width / 2); col++)
{
for (i = 0; i < spp; i++)
{
bytebuff1 = *src_ptr;
*src_ptr++ = *(dst_ptr - spp + i);
*(dst_ptr - spp + i) = bytebuff1;
}
dst_ptr -= spp;
}
}
break;
default:
TIFFError("mirrorImage", "Unsupported bits per pixel");
return (-1);
}
}
else
{ /* non 8 bit per sample data */
if (!(line_buff = (unsigned char *)_TIFFmalloc(spp * rowsize + 1)))
{
TIFFError("mirrorImage", "Unable to allocate mirror line buffer");
return (-1);
}
for (row = 0; row < length; row++)
{
row_offset = row * rowsize * spp;
src_ptr = crop_buff + row_offset;
dst_ptr = line_buff + (spp * rowsize) - 1;
_TIFFmemset (line_buff, '\0', rowsize);
if ((width % 8) == 0)
{
for (col = 0; col < rowsize; col++)
{
for (i = 0, j = 7; i < 8; i++, j--)
{
bitset = (*(src_ptr + col) & (((unsigned char)1 << j)) ? 1 : 0);
line_buff[rowsize - col] |= (bitset << i);
}
}
_TIFFmemcpy (src_ptr, line_buff, spp * rowsize);
}
else
{
bytebuff2 = 0;
for (i = 0, j = 7; i < trailing_bits; i++, j--)
{
bitset = ((*src_ptr) & (((unsigned char)1 << j)) ? 1 : 0);
bytebuff2 |= bitset << (8 - trailing_bits + i);
}
*(dst_ptr--) = bytebuff2;
for (col = 0; col < full_bytes; col++)
{
bytebuff1 = *(src_ptr) & ((unsigned char)255 >> trailing_bits);
bytebuff2 = *(src_ptr + 1) & ((unsigned char)255 << (8 - trailing_bits));
*dst_ptr = (bytebuff1 << trailing_bits) | (bytebuff2 >> (8 - trailing_bits));
TIFFReverseBits(dst_ptr, 1);
src_ptr++;
dst_ptr--;
}
_TIFFmemcpy (crop_buff + row_offset, line_buff, spp * rowsize);
}
}
if (line_buff)
_TIFFfree(line_buff);
}
break;
case MIRROR_VERT:
if (!(line_buff = (unsigned char *)_TIFFmalloc(spp * rowsize)))
{
TIFFError ("mirrorImage", "Unable to allocate mirror line buffer of %1u bytes", rowsize);
return (-1);
}
dst_ptr = crop_buff + (spp * rowsize * (length - 1));
for (row = 0; row < length / 2; row++)
{
_TIFFmemcpy(line_buff, src_ptr, spp * rowsize);
_TIFFmemcpy(src_ptr, dst_ptr, spp * rowsize);
_TIFFmemcpy(dst_ptr, line_buff, spp * rowsize);
src_ptr += (spp * rowsize);
dst_ptr -= (spp * rowsize);
}
if (line_buff)
_TIFFfree(line_buff);
break;
default: TIFFError ("mirrorImage", "Invalid mirror axis %d", mirror);
return (-1);
break;
}
return (0);
}
/* Invert the light and dark values for a bilevel or grayscale image */
static int
invertImage(uint16 photometric, uint16 spp, uint16 bps, uint32 width, uint32 length, unsigned char *crop_buff)
{
uint32 row, col;
unsigned char bytebuff1, bytebuff2, bytebuff3, bytebuff4;
unsigned char *src_ptr;
uint16 *src_ptr_uint16;
if (spp != 1)
{
TIFFError("invertImage", "Image inversion not supported for more than one sample per pixel");
return (-1);
}
if (photometric != PHOTOMETRIC_MINISWHITE && photometric != PHOTOMETRIC_MINISBLACK)
{
TIFFError("invertImage", "Only black and white and grayscale images can be inverted");
return (-1);
}
src_ptr = crop_buff;
if (src_ptr == NULL)
{
TIFFError ("invertImage", "Invalid crop buffer passed to invertImage");
return (-1);
}
switch (bps)
{
case 16: src_ptr_uint16 = (unsigned short *)src_ptr;
for (row = 0; row < length; row++)
for (col = 0; col < width; col++)
{
*src_ptr_uint16 = (unsigned short)0xFFFF - *src_ptr_uint16;
src_ptr_uint16++;
}
break;
case 8: for (row = 0; row < length; row++)
for (col = 0; col < width; col++)
{
*src_ptr = (unsigned char)255 - *src_ptr;
src_ptr++;
}
break;
case 4: for (row = 0; row < length; row++)
for (col = 0; col < width; col++)
{
bytebuff1 = 16 - (unsigned char)(*src_ptr & 240 >> 4);
bytebuff2 = 16 - (*src_ptr & 15);
*src_ptr = bytebuff1 << 4 & bytebuff2;
src_ptr++;
}
break;
case 2: for (row = 0; row < length; row++)
for (col = 0; col < width; col++)
{
bytebuff1 = 4 - (unsigned char)(*src_ptr & 192 >> 6);
bytebuff2 = 4 - (unsigned char)(*src_ptr & 48 >> 4);
bytebuff3 = 4 - (unsigned char)(*src_ptr & 12 >> 2);
bytebuff4 = 4 - (unsigned char)(*src_ptr & 3);
*src_ptr = (bytebuff1 << 6) || (bytebuff2 << 4) || (bytebuff3 << 2) || bytebuff4;
src_ptr++;
}
break;
case 1: for (row = 0; row < length; row++)
for (col = 0; col < width; col += 8 /(spp * bps))
{
*src_ptr = ~(*src_ptr);
src_ptr++;
}
break;
default: TIFFError("invertImage", "Unsupported bit depth %d", bps);
return (-1);
}
return (0);
}
/* vim: set ts=8 sts=8 sw=8 noet: */
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