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libtiff/tools/tiffcrop.c
Andrey Kiselev d47a85ce37 Avoid warnings.
2007-04-18 08:46:33 +00:00

3825 lines
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/* $Id: tiffcrop.c,v 1.5 2007-04-18 08:46:33 dron Exp $ */
/* tiffcrop.c -- a port of tiffcp.c extended to include cropping of selections
*
* 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.
*
* Richard Nolde Updated 2/2007 Add support for the options below to extract
* sections of image(s) and to modify the whole image or selected portion
* with rotations, mirroring, and colorscale/colormap inversion of selected
* types of TIFF images when appropriate
*
* Options:
* -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 # set horizontal margin of output page to # expressed in current
* units
* -K # set 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 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
* -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 invert the colormap, black to white, for bilevel and grayscale
* images
*/
#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
#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 inmage
* manipulations.
*/
#define EDGE_TOP 1
#define EDGE_LEFT 2
#define EDGE_BOTTOM 3
#define EDGE_RIGHT 4
#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_ROTATE 16
#define CROP_MIRROR 32
#define CROP_INVERT 64
#define STRIP 1
#define TILE 2
#define MAX_ZONES 32 /* number of sections to extract from a single page */
#define MAX_SECTIONS 64 /* number of sections from one page to write to output */
#define MAX_IMAGES 256 /* number of images in descrete list */
/* Offsets into buffer for margins and fixed width and length */
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 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 */
uint32 buffsize; /* size of buffer needed to hold the cropped region */
int position; /* ordinal of segment to be extracted */
int total; /* total equal sized divisions of crop area */
};
/* 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 */
uint32 zones; /* Number of zones requested */
uint16 crop_mode; /* Crop options to be applied */
uint16 res_unit; /* Resolution unit for margins and selections */
uint16 edge_ref; /* Reference edge from which zones are calculated */
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 */
struct pageseg zonelist[MAX_ZONES]; /* Zones within page or master crop region */
};
#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
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 */
};
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 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 *);
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 extractCropRegions(TIFF *, struct crop_mask *,
unsigned char *, unsigned char *);
static int createCroppedImage(TIFF*, struct image_data *, struct crop_mask *,
unsigned char **, unsigned char **);
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 *);
static int writeCroppedImage(TIFF *, TIFF *, struct crop_mask *,
unsigned char *);
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 **);
static int pageNum = 0;
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;
int c;
/** RJN additions **/
struct image_data image; /* Image parameters for one image */
struct crop_mask crop_data; /* Cropping parameters for all images */
struct pagedef page; /* Page definition for output pages */
struct pageseg sections[MAX_SECTIONS]; /* Sections of one output page */
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 */
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;
unsigned int image_count = 0;
unsigned int next_image = 0;
unsigned int imagelist[MAX_IMAGES + 1]; /* individually specified images */
extern int optind;
extern char* optarg;
initImageData(&image);
initCropMasks(&crop_data);
initPageSetup(&page, sections);
*mp++ = 'w';
*mp = '\0';
while ((c = getopt(argc, argv, "ac:d:f:il:m:p:r:st:w:BCE:F:H:IJ: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 directory offset */
break;
case 'f': if (streq(optarg, "lsb2msb")) /* fill order */
deffillorder = FILLORDER_LSB2MSB;
else if (streq(optarg, "msb2lsb"))
deffillorder = FILLORDER_MSB2LSB;
else
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 'w': /* tile width */
outtiled = TRUE;
deftilewidth = atoi(optarg);
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 'D': /* down sample */
fprintf (stderr, "Down sampling not yet implemented\n");
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: fprintf (stderr, "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: fprintf (stderr, "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;
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
*/
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: fprintf (stderr,
"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 papersize %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: fprintf (stderr,
"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)
{
fprintf (stderr,
"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
{
fprintf (stderr, "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_ZONES));
(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_ZONES */
if ((opt_ptr != NULL) && (i >= MAX_ZONES))
{
fprintf (stderr, "Zone list exceed limit of %d zones\n", MAX_ZONES);
exit (-1);
}
break;
case '?': usage();
/*NOTREACHED*/
}
if (argc - optind < 2)
usage();
out = TIFFOpen(argv[argc - 1], mode);
if (out == NULL)
return (-2);
if ((argc - optind) == 2)
pageNum = -1;
for (; optind < argc-1 ; optind++)
{
in = TIFFOpen (argv[optind], "r");
if (in == NULL)
return (-3);
if (image_count == 0)
dirnum = 0;
else
{
dirnum = (tdir_t)(imagelist[next_image] - 1);
next_image++;
}
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);
}
for (;;)
{
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 (crop_data.crop_mode != CROP_NONE)
{
if (getCropOffsets(&image, &crop_data))
{
TIFFError("main", "Unable to define crop regions");
exit (-1);
}
/* Does this even need to be called if we are not cropping? */
if (createCroppedImage(in, &image, &crop_data, &read_buff, &crop_buff))
{
TIFFError("main", "Unable to create output image");
exit (-1);
}
}
/* Check output qualifiers and build loops to break output image into pages */
if (page.mode != PAGE_MODE_NONE)
{
if (crop_data.crop_mode == CROP_NONE)
sect_src = read_buff;
else
sect_src = crop_buff;
if (computeOutputPixelOffsets(&crop_data, &image, &page, sections))
{
TIFFError("main", "Unable to compute output section data");
exit (-1);
}
if (writeImageSections(in, out, &image, &page, sections, sect_src, &sect_buff))
{
TIFFError("main", "Unable to write image sections");
exit (-1);
}
}
else
if (writeCroppedImage(in, out, &crop_data, crop_buff))
{
TIFFError("main", "Unable to write new image");
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))
break;
}
}
TIFFClose(in);
/* 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);
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:",
" -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",
"",
" -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",
"",
" -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 invert the color space, eg dark to light for bilevel and grayscale images",
"",
" 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)
{
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;
}
}
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->mirror = (uint16)0;
cps->invert = (uint16)0;
cps->zones = (uint32)0;
for (i = 0; i < MAX_ZONES; i++)
{
cps->zonelist[i].position = 0;
cps->zonelist[i].total = 0;
cps->zonelist[i].x1 = (uint32)0;
cps->zonelist[i].x2 = (uint32)0;
cps->zonelist[i].y1 = (uint32)0;
cps->zonelist[i].y2 = (uint32)0;
}
}
/* 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;
if (image->res_unit != RESUNIT_INCH && image->res_unit != RESUNIT_CENTIMETER)
{
xres = 1.0;
yres = 1.0;
if ((crop->res_unit != RESUNIT_NONE) && ((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);
}
}
else
{
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
/* 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->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 1 to imagewidth, imagelength, not bytes */
switch (crop->edge_ref) {
case EDGE_BOTTOM:
startx = lmargin;
if ((startx + width) >= (image->width - rmargin))
endx = image->width - rmargin - 1;
else
endx = startx + width;
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;
starty = tmargin;
if ((starty + length) >= (image->length - bmargin))
endy = image->length - bmargin - 1;
else
endy = starty + length;
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;
starty = tmargin;
if ((starty + length) >= (image->length - bmargin))
endy = image->length - bmargin - 1;
else
endy = starty + length;
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.
*/
static int
getCropOffsets(struct image_data *image, struct crop_mask *crop)
{
struct offset offsets;
uint32 i, seg, total, cropbuff = 0;
uint32 test, buffsize;
double zwidth, zlength;
/* Compute pixel offsets if margins or fixed width or length specified */
if ((crop->crop_mode & CROP_MARGINS) ||
(crop->crop_mode & CROP_LENGTH) ||
(crop->crop_mode & CROP_WIDTH))
{
if (computeInputPixelOffsets(crop, image, &offsets))
{
TIFFError ("getCropOffsets", "Unable to compute crop margins");
return (-1);
}
cropbuff = TRUE;
}
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;
cropbuff = 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 (cropbuff == FALSE) /* No margins or fixed width or length areas */
{
crop->zones = 0;
crop->combined_width = image->width;
crop->combined_length = image->length;
/* crop->bufftotal = ceil((image->width * image->bps + 7 ) / (double)8) * image->spp) * image->length); */
return (0);
}
else /* we need one crop zone for margins and fixed width or length areas */
{
crop->zones = 1;
crop->zonelist[0].total = 1;
crop->zonelist[0].position = 1;
}
}
/* Compute the start and end values for each zone */
crop->bufftotal = 0;
crop->combined_width = (uint32)0;
crop->combined_length = (uint32)0;
switch (crop->edge_ref) {
case EDGE_LEFT: /* zones from left to right, length from top */
for (i = 0; i < crop->zones; i++)
{
seg = crop->zonelist[i].position;
total = crop->zonelist[i].total;
zlength = offsets.crop_length;
crop->zonelist[i].y1 = offsets.starty;
crop->zonelist[i].y2 = offsets.endy;
crop->zonelist[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)
crop->zonelist[i].x2 = image->width;
else
crop->zonelist[i].x2 = test;
zwidth = crop->zonelist[i].x2 - crop->zonelist[i].x1 + 1;
/*
* Storing size of individual buffers in case we want to create
* a separte IFD for each zone
*/
buffsize = (uint32)
((ceil)(((zwidth * image->bps + 7 ) / 8) * image->spp)
* (ceil(zlength)));
/* crop->zonelist[i].buffsize = buffsize; */
crop->bufftotal += buffsize;
crop->combined_length += (uint32)zlength;
crop->combined_width = (uint32)zwidth;
#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->zonelist[i].x1, crop->zonelist[i].x2,
crop->zonelist[i].y1, crop->zonelist[i].y2);
#endif
}
break;
case EDGE_BOTTOM: /* width from left, zones from bottom to top */
for (i = 0; i < crop->zones; i++)
{
seg = crop->zonelist[i].position;
total = crop->zonelist[i].total;
zwidth = offsets.crop_width;
crop->zonelist[i].x1 = offsets.startx;
crop->zonelist[i].x2 = offsets.endx;
test = offsets.endy - (uint32)(offsets.crop_length * 1.0 * seg / total);
if (test < 1 )
crop->zonelist[i].y1 = 1;
else
crop->zonelist[i].y1 = test;
test = offsets.endy - (uint32)(offsets.crop_length * 1.0 * (seg - 1) / total);
if (test > image->length)
crop->zonelist[i].y2 = image->length;
else
crop->zonelist[i].y2 = test;
zlength = crop->zonelist[i].y2 - crop->zonelist[i].y1 + 1;
/* Storing size of individual buffers in case we want
to create a separte IFD for each zone
*/
buffsize = (uint32)
((ceil)(((zwidth * image->bps + 7 ) / 8) * image->spp)
* (ceil(zlength)));
/* crop->zonelist[i].buffsize = buffsize; */
crop->bufftotal += buffsize;
crop->combined_length += (uint32)zlength;
crop->combined_width = (uint32)zwidth;
#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->zonelist[i].x1, crop->zonelist[i].x2,
crop->zonelist[i].y1, crop->zonelist[i].y2);
#endif
}
break;
case EDGE_RIGHT: /* zones from right to left, length from top */
for (i = 0; i < crop->zones; i++)
{
seg = crop->zonelist[i].position;
total = crop->zonelist[i].total;
zwidth = (offsets.crop_width * 1.0) / total;
zlength = offsets.crop_length;
/*
* Storing size of individual buffers in case we want to create
* a separte IFD for each zone
*/
buffsize = (uint32)
((ceil)(((zwidth * image->bps + 7 ) / 8) * image->spp)
* (ceil(zlength)));
crop->zonelist[i].x1 = offsets.rmargin - (uint32)(offsets.endx - (zwidth * seg));
crop->zonelist[i].x2 = offsets.rmargin - (uint32)(offsets.endx - (zwidth * (seg - 1)));
crop->zonelist[i].y1 = offsets.starty;
crop->zonelist[i].y2 = offsets.endy;
/* crop->zonelist[i].buffsize = buffsize; */
crop->bufftotal += buffsize;
crop->combined_length += (uint32)zlength;
crop->combined_width = (uint32)zwidth;
#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->zonelist[i].x1, crop->zonelist[i].x2,
crop->zonelist[i].y1, crop->zonelist[i].y2);
#endif
}
break;
case EDGE_TOP: /* width from left, zones from top to bottom */
default:
for (i = 0; i < crop->zones; i++)
{
seg = crop->zonelist[i].position;
total = crop->zonelist[i].total;
zwidth = offsets.crop_width;
crop->zonelist[i].x1 = offsets.startx;
crop->zonelist[i].x2 = offsets.endx;
crop->zonelist[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)
crop->zonelist[i].y2 = image->length;
else
crop->zonelist[i].y2 = test - 1;
zlength = crop->zonelist[i].y2 - crop->zonelist[i].y1 + 1;
/*
* Storing size of individual buffers in case we want to create
* a separte IFD for each zone
*/
buffsize = (uint32)
((ceil)(((zwidth * image->bps + 7 ) / 8) * image->spp)
* (ceil(zlength)));
/* crop->zonelist[i].buffsize = buffsize; */
crop->bufftotal += buffsize;
crop->combined_length += (uint32)zlength;
crop->combined_width = (uint32)zwidth;
#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->zonelist[i].x1, crop->zonelist[i].x2,
crop->zonelist[i].y1, crop->zonelist[i].y2);
#endif
}
break;
}
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);
}
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);
}
/* Copy the zones out of input buffer into 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 zones
* regardless of the way the data are organized in the input file.
*/
static int
extractCropRegions(TIFF *in, struct crop_mask *crop, unsigned char *read_buff, unsigned char *crop_buff)
{
uint32 i, 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;
TIFFGetFieldDefaulted(in, TIFFTAG_BITSPERSAMPLE, &bps);
TIFFGetFieldDefaulted(in, TIFFTAG_SAMPLESPERPIXEL, &spp);
TIFFGetField(in, TIFFTAG_IMAGEWIDTH, &img_width);
TIFFGetField(in, TIFFTAG_IMAGELENGTH, &img_length);
src_ptr = read_buff;
dst_ptr = crop_buff;
src_offset = 0;
dst_offset = 0;
rowsize = spp * ((img_width * bps + 7) / 8);
for (i = 0; i < crop->zones; i++)
{
/* rows, columns, width, length are expressed in pixels */
first_row = crop->zonelist[i].y1;
last_row = crop->zonelist[i].y2;
first_col = crop->zonelist[i].x1;
last_col = crop->zonelist[i].x2;
crop_width = last_col - first_col + 1;
crop_length = last_row - first_row + 1;
full_bytes = (crop_width * spp * bps) / 8; /* number of COMPLETE bytes per row in crop area */
trailing_bits = (crop_width * bps) % 8;
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 * rowsize;
src_offset = row_offset + col_offset;
_TIFFmemcpy (crop_buff + dst_offset, read_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 * rowsize;
offset1 = row_offset + (first_col * bps / 8);
offset2 = row_offset + (last_col * bps / 8);
bytebuff1 = bytebuff2 = 0;
if (shift1 == 0) /* the region is byte and sample alligned */
{
_TIFFmemcpy (crop_buff + dst_offset, read_buff + offset1, full_bytes);
dst_offset += full_bytes;
if (trailing_bits != 0)
{
/* bytebuff2 = read_buff[offset2] & ((unsigned char)255 << (8 - shift2 - (bps * spp))); */
bytebuff2 = read_buff[offset2] & ((unsigned char)255 << (7 - shift2));
crop_buff[dst_offset] = bytebuff2;
dst_offset++;
}
}
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[row_offset + full_bytes] & ((unsigned char)255 << (7 - shift2));
bytebuff2 = bytebuff1 & ((unsigned char)255 << shift1);
crop_buff[dst_offset] = bytebuff2;
/* crop_buff[dst_offset + j] = bytebuff2; */
}
else
{
if (shift2 < shift1)
{
/* bytebuff2 = ((unsigned char)255 << (8 - shift2 - (bps * spp)));
crop_buff[dst_offset + j] &= bytebuff2; */
bytebuff2 = ((unsigned char)255 << (shift1 - shift2 - 1));
crop_buff[dst_offset] &= bytebuff2;
}
}
}
dst_offset++;
}
}
}
}
return (0);
}
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);
}
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("computeOutputPixelOffsets",
"%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);
}
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);
}
/* 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.
*/
static int
createCroppedImage(TIFF* in, 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;
if (crop->zones == 0)
{ /* 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;
}
else
{ /* one of more crop zones */
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);
}
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 (extractCropRegions(in, crop, read_buff, crop_buff))
{
TIFFError("createCroppedImage", "Unable to extract cropped regions from image");
return (-1);
}
} /* end if crop->zones != 0) */
if (crop->crop_mode & CROP_INVERT)
{
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->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, struct crop_mask *crop, unsigned char *crop_buff)
{
uint16 bps, spp;
uint32 width, length;
struct cpTag* p;
width = crop->combined_width;
length = crop->combined_length;
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)) {
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);
/* 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
rotateImage(uint16 rotation, uint16 spp, uint16 bps, uint32 *img_width, uint32 *img_length, unsigned char **crop_buff_ptr)
*/
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;
int j;
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;
trailing_bits = (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);
}
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 */
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 = 1; row <= length; row++)
{
dst_ptr = rotate_buff + (spp * colsize) - (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 - (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) |= (bitset << ((row + trailing_bits) % 8));
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;
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 */
{
/***
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;
}
}
**/
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;
memset (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;
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 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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