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libtiff/archive/tools/bmp2tiff.c
Bob Friesenhahn 30366c9f22 * tools/Makefile.am: The libtiff tools bmp2tiff, gif2tiff, 
ras2tiff, sgi2tiff, sgisv, and ycbcr are completely removed from
the distribution.  The libtiff tools rgb2ycbcr and thumbnail are
only built in the build tree for testing.  Old files are put in
new 'archive' subdirectory of the source repository, but not in
distribution archives.  These changes are made in order to lessen
the maintenance burden.
2016-06-05 19:53:59 +00:00

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/* $Id: bmp2tiff.c,v 1.1 2016-06-05 19:53:59 bfriesen Exp $
*
* Project: libtiff tools
* Purpose: Convert Windows BMP files in TIFF.
* Author: Andrey Kiselev, dron@ak4719.spb.edu
*
******************************************************************************
* Copyright (c) 2004, Andrey Kiselev <dron@ak4719.spb.edu>
*
* Permission to use, copy, modify, distribute, and sell this software and
* its documentation for any purpose is hereby granted without fee, provided
* that (i) the above copyright notices and this permission notice appear in
* all copies of the software and related documentation, and (ii) the names of
* Sam Leffler and Silicon Graphics may not be used in any advertising or
* publicity relating to the software without the specific, prior written
* permission of Sam Leffler and Silicon Graphics.
*
* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
*
* IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
* ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
* WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#include "tif_config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#if HAVE_FCNTL_H
# include <fcntl.h>
#endif
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_IO_H
# include <io.h>
#endif
#ifdef NEED_LIBPORT
# include "libport.h"
#endif
#include "tiffiop.h"
#include "tiffio.h"
#ifndef O_BINARY
# define O_BINARY 0
#endif
enum BMPType
{
BMPT_WIN4, /* BMP used in Windows 3.0/NT 3.51/95 */
BMPT_WIN5, /* BMP used in Windows NT 4.0/98/Me/2000/XP */
BMPT_OS21, /* BMP used in OS/2 PM 1.x */
BMPT_OS22 /* BMP used in OS/2 PM 2.x */
};
/*
* Bitmap file consists of a BMPFileHeader structure followed by a
* BMPInfoHeader structure. An array of BMPColorEntry structures (also called
* a colour table) follows the bitmap information header structure. The colour
* table is followed by a second array of indexes into the colour table (the
* actual bitmap data). Data may be comressed, for 4-bpp and 8-bpp used RLE
* compression.
*
* +---------------------+
* | BMPFileHeader |
* +---------------------+
* | BMPInfoHeader |
* +---------------------+
* | BMPColorEntry array |
* +---------------------+
* | Colour-index array |
* +---------------------+
*
* All numbers stored in Intel order with least significant byte first.
*/
enum BMPComprMethod
{
BMPC_RGB = 0L, /* Uncompressed */
BMPC_RLE8 = 1L, /* RLE for 8 bpp images */
BMPC_RLE4 = 2L, /* RLE for 4 bpp images */
BMPC_BITFIELDS = 3L, /* Bitmap is not compressed and the colour table
* consists of three DWORD color masks that specify
* the red, green, and blue components of each
* pixel. This is valid when used with
* 16- and 32-bpp bitmaps. */
BMPC_JPEG = 4L, /* Indicates that the image is a JPEG image. */
BMPC_PNG = 5L /* Indicates that the image is a PNG image. */
};
enum BMPLCSType /* Type of logical color space. */
{
BMPLT_CALIBRATED_RGB = 0, /* This value indicates that endpoints and
* gamma values are given in the appropriate
* fields. */
BMPLT_DEVICE_RGB = 1,
BMPLT_DEVICE_CMYK = 2
};
typedef struct
{
int32 iCIEX;
int32 iCIEY;
int32 iCIEZ;
} BMPCIEXYZ;
typedef struct /* This structure contains the x, y, and z */
{ /* coordinates of the three colors that */
/* correspond */
BMPCIEXYZ iCIERed; /* to the red, green, and blue endpoints for */
BMPCIEXYZ iCIEGreen; /* a specified logical color space. */
BMPCIEXYZ iCIEBlue;
} BMPCIEXYZTriple;
typedef struct
{
char bType[2]; /* Signature "BM" */
uint32 iSize; /* Size in bytes of the bitmap file. Should
* always be ignored while reading because
* of error in Windows 3.0 SDK's description
* of this field */
uint16 iReserved1; /* Reserved, set as 0 */
uint16 iReserved2; /* Reserved, set as 0 */
uint32 iOffBits; /* Offset of the image from file start in bytes */
} BMPFileHeader;
/* File header size in bytes: */
const int BFH_SIZE = 14;
typedef struct
{
uint32 iSize; /* Size of BMPInfoHeader structure in bytes.
* Should be used to determine start of the
* colour table */
int32 iWidth; /* Image width */
int32 iHeight; /* Image height. If positive, image has bottom
* left origin, if negative --- top left. */
int16 iPlanes; /* Number of image planes (must be set to 1) */
int16 iBitCount; /* Number of bits per pixel (1, 4, 8, 16, 24
* or 32). If 0 then the number of bits per
* pixel is specified or is implied by the
* JPEG or PNG format. */
uint32 iCompression; /* Compression method */
uint32 iSizeImage; /* Size of uncomressed image in bytes. May
* be 0 for BMPC_RGB bitmaps. If iCompression
* is BI_JPEG or BI_PNG, iSizeImage indicates
* the size of the JPEG or PNG image buffer. */
int32 iXPelsPerMeter; /* X resolution, pixels per meter (0 if not used) */
int32 iYPelsPerMeter; /* Y resolution, pixels per meter (0 if not used) */
uint32 iClrUsed; /* Size of colour table. If 0, iBitCount should
* be used to calculate this value
* (1<<iBitCount). This value should be
* unsigned for proper shifting. */
int32 iClrImportant; /* Number of important colours. If 0, all
* colours are required */
/*
* Fields above should be used for bitmaps, compatible with Windows NT 3.51
* and earlier. Windows 98/Me, Windows 2000/XP introduces additional fields:
*/
int32 iRedMask; /* Colour mask that specifies the red component
* of each pixel, valid only if iCompression
* is set to BI_BITFIELDS. */
int32 iGreenMask; /* The same for green component */
int32 iBlueMask; /* The same for blue component */
int32 iAlphaMask; /* Colour mask that specifies the alpha
* component of each pixel. */
uint32 iCSType; /* Colour space of the DIB. */
BMPCIEXYZTriple sEndpoints; /* This member is ignored unless the iCSType
* member specifies BMPLT_CALIBRATED_RGB. */
int32 iGammaRed; /* Toned response curve for red. This member
* is ignored unless color values are
* calibrated RGB values and iCSType is set to
* BMPLT_CALIBRATED_RGB. Specified
* in 16^16 format. */
int32 iGammaGreen; /* Toned response curve for green. */
int32 iGammaBlue; /* Toned response curve for blue. */
} BMPInfoHeader;
/*
* Info header size in bytes:
*/
const unsigned int BIH_WIN4SIZE = 40; /* for BMPT_WIN4 */
const unsigned int BIH_WIN5SIZE = 57; /* for BMPT_WIN5 */
const unsigned int BIH_OS21SIZE = 12; /* for BMPT_OS21 */
const unsigned int BIH_OS22SIZE = 64; /* for BMPT_OS22 */
/*
* We will use plain byte array instead of this structure, but declaration
* provided for reference
*/
typedef struct
{
char bBlue;
char bGreen;
char bRed;
char bReserved; /* Must be 0 */
} BMPColorEntry;
static uint16 compression = (uint16) -1;
static int jpegcolormode = JPEGCOLORMODE_RGB;
static int quality = 75; /* JPEG quality */
static uint16 predictor = 0;
static void usage(void);
static int processCompressOptions(char*);
static void rearrangePixels(char *, uint32, uint32);
int
main(int argc, char* argv[])
{
uint32 width, length;
uint16 nbands = 1; /* number of bands in input image */
uint16 depth = 8; /* bits per pixel in input image */
uint32 rowsperstrip = (uint32) -1;
uint16 photometric = PHOTOMETRIC_MINISBLACK;
int fd = 0;
_TIFF_stat_s instat;
char *outfilename = NULL, *infilename = NULL;
TIFF *out = NULL;
BMPFileHeader file_hdr;
BMPInfoHeader info_hdr;
int bmp_type;
uint32 clr_tbl_size, n_clr_elems = 3;
unsigned char *clr_tbl;
unsigned short *red_tbl = NULL, *green_tbl = NULL, *blue_tbl = NULL;
uint32 row, clr;
int c;
#if !HAVE_DECL_OPTARG
extern int optind;
extern char* optarg;
#endif
while ((c = getopt(argc, argv, "c:r:o:h")) != -1) {
switch (c) {
case 'c': /* compression scheme */
if (!processCompressOptions(optarg))
usage();
break;
case 'r': /* rows/strip */
rowsperstrip = atoi(optarg);
break;
case 'o':
outfilename = optarg;
break;
case 'h':
usage();
default:
break;
}
}
if (argc - optind < 2)
usage();
if (outfilename == NULL)
outfilename = argv[argc-1];
out = TIFFOpen(outfilename, "w");
if (out == NULL) {
TIFFError(infilename, "Cannot open file %s for output",
outfilename);
goto bad3;
}
while (optind < argc-1) {
infilename = argv[optind];
optind++;
fd = open(infilename, O_RDONLY|O_BINARY, 0);
if (fd < 0) {
TIFFError(infilename, "Cannot open input file");
return -1;
}
if (read(fd, file_hdr.bType, 2) != 2) {
TIFFError(infilename, "Failed to read from file (%s)",
strerror(errno));
goto bad;
}
if(file_hdr.bType[0] != 'B' || file_hdr.bType[1] != 'M') {
TIFFError(infilename, "File is not BMP");
goto bad;
}
/* -------------------------------------------------------------------- */
/* Read the BMPFileHeader. We need iOffBits value only */
/* -------------------------------------------------------------------- */
if (_TIFF_lseek_f(fd, 10, SEEK_SET) == (_TIFF_off_t)-1) {
TIFFError(infilename, "Failed to seek to offset");
goto bad;
}
if (read(fd, &file_hdr.iOffBits, 4) != 4) {
TIFFError(infilename, "Failed to read from file (%s)",
strerror(errno));
goto bad;
}
#ifdef WORDS_BIGENDIAN
TIFFSwabLong(&file_hdr.iOffBits);
#endif
if (_TIFF_fstat_f(fd, &instat) == -1) {
TIFFError(infilename, "Failed obtain file information");
goto bad;
}
file_hdr.iSize = instat.st_size;
/* -------------------------------------------------------------------- */
/* Read the BMPInfoHeader. */
/* -------------------------------------------------------------------- */
if (_TIFF_lseek_f(fd, BFH_SIZE, SEEK_SET) == (_TIFF_off_t)-1) {
TIFFError(infilename, "Failed to seek to offset");
goto bad;
}
if (read(fd, &info_hdr.iSize, 4) != 4) {
TIFFError(infilename, "Failed to read from file (%s)",
strerror(errno));
goto bad;
}
#ifdef WORDS_BIGENDIAN
TIFFSwabLong(&info_hdr.iSize);
#endif
if (info_hdr.iSize == BIH_WIN4SIZE)
bmp_type = BMPT_WIN4;
else if (info_hdr.iSize == BIH_OS21SIZE)
bmp_type = BMPT_OS21;
else if (info_hdr.iSize == BIH_OS22SIZE
|| info_hdr.iSize == 16)
bmp_type = BMPT_OS22;
else
bmp_type = BMPT_WIN5;
if (bmp_type == BMPT_WIN4
|| bmp_type == BMPT_WIN5
|| bmp_type == BMPT_OS22) {
if ((read(fd, &info_hdr.iWidth, 4) != 4) ||
(read(fd, &info_hdr.iHeight, 4) != 4) ||
(read(fd, &info_hdr.iPlanes, 2) != 2) ||
(read(fd, &info_hdr.iBitCount, 2) != 2) ||
(read(fd, &info_hdr.iCompression, 4) != 4) ||
(read(fd, &info_hdr.iSizeImage, 4) != 4) ||
(read(fd, &info_hdr.iXPelsPerMeter, 4) != 4) ||
(read(fd, &info_hdr.iYPelsPerMeter, 4) != 4) ||
(read(fd, &info_hdr.iClrUsed, 4) != 4) ||
(read(fd, &info_hdr.iClrImportant, 4) != 4)) {
TIFFError(infilename, "Failed to read from file (%s)",
strerror(errno));
goto bad;
}
#ifdef WORDS_BIGENDIAN
TIFFSwabLong((uint32*) &info_hdr.iWidth);
TIFFSwabLong((uint32*) &info_hdr.iHeight);
TIFFSwabShort((uint16*) &info_hdr.iPlanes);
TIFFSwabShort((uint16*) &info_hdr.iBitCount);
TIFFSwabLong((uint32*) &info_hdr.iCompression);
TIFFSwabLong((uint32*) &info_hdr.iSizeImage);
TIFFSwabLong((uint32*) &info_hdr.iXPelsPerMeter);
TIFFSwabLong((uint32*) &info_hdr.iYPelsPerMeter);
TIFFSwabLong((uint32*) &info_hdr.iClrUsed);
TIFFSwabLong((uint32*) &info_hdr.iClrImportant);
#endif
n_clr_elems = 4;
}
if (bmp_type == BMPT_OS22) {
/*
* FIXME: different info in different documents
* regarding this!
*/
n_clr_elems = 3;
}
if (bmp_type == BMPT_OS21) {
int16 iShort;
if ( read(fd, &iShort, 2) != 2 ) {
TIFFError(infilename, "Failed to read from file (%s)",
strerror(errno));
goto bad;
}
#ifdef WORDS_BIGENDIAN
TIFFSwabShort((uint16*) &iShort);
#endif
info_hdr.iWidth = iShort;
if ( read(fd, &iShort, 2) != 2 ) {
TIFFError(infilename, "Failed to read from file (%s)",
strerror(errno));
goto bad;
}
#ifdef WORDS_BIGENDIAN
TIFFSwabShort((uint16*) &iShort);
#endif
info_hdr.iHeight = iShort;
if (read(fd, &iShort, 2) != 2 ) {
TIFFError(infilename, "Failed to read from file (%s)",
strerror(errno));
goto bad;
}
#ifdef WORDS_BIGENDIAN
TIFFSwabShort((uint16*) &iShort);
#endif
info_hdr.iPlanes = iShort;
if ( read(fd, &iShort, 2) != 2 ) {
TIFFError(infilename, "Failed to read from file (%s)",
strerror(errno));
goto bad;
}
#ifdef WORDS_BIGENDIAN
TIFFSwabShort((uint16*) &iShort);
#endif
info_hdr.iBitCount = iShort;
info_hdr.iCompression = BMPC_RGB;
n_clr_elems = 3;
}
if (info_hdr.iBitCount != 1 && info_hdr.iBitCount != 4 &&
info_hdr.iBitCount != 8 && info_hdr.iBitCount != 16 &&
info_hdr.iBitCount != 24 && info_hdr.iBitCount != 32) {
TIFFError(infilename,
"Cannot process BMP file with bit count %d",
info_hdr.iBitCount);
close(fd);
return 0;
}
width = info_hdr.iWidth;
length = (info_hdr.iHeight > 0) ? info_hdr.iHeight : -info_hdr.iHeight;
if( width <= 0 || length <= 0 )
{
TIFFError(infilename,
"Invalid dimensions of BMP file" );
close(fd);
return -1;
}
switch (info_hdr.iBitCount)
{
case 1:
case 4:
case 8:
nbands = 1;
depth = info_hdr.iBitCount;
photometric = PHOTOMETRIC_PALETTE;
/* Allocate memory for colour table and read it. */
if (info_hdr.iClrUsed)
clr_tbl_size =
((uint32)(1<<depth)<info_hdr.iClrUsed)
? (uint32) (1 << depth)
: info_hdr.iClrUsed;
else
clr_tbl_size = 1 << depth;
clr_tbl = (unsigned char *)
_TIFFmalloc(n_clr_elems * clr_tbl_size);
if (!clr_tbl) {
TIFFError(infilename,
"Can't allocate space for color table");
goto bad;
}
if (_TIFF_lseek_f(fd, BFH_SIZE + info_hdr.iSize, SEEK_SET) == (_TIFF_off_t)-1) {
TIFFError(infilename, "Failed to seek to offset");
goto bad;
}
if ( read(fd, clr_tbl, n_clr_elems * clr_tbl_size)
!= (long) (n_clr_elems * clr_tbl_size) ) {
TIFFError(infilename, "Failed to read from file (%s)",
strerror(errno));
goto bad;
}
red_tbl = (unsigned short*)
_TIFFmalloc(((tmsize_t)1)<<depth * sizeof(unsigned short));
if (!red_tbl) {
TIFFError(infilename,
"Can't allocate space for red component table");
_TIFFfree(clr_tbl);
goto bad1;
}
green_tbl = (unsigned short*)
_TIFFmalloc(((tmsize_t)1)<<depth * sizeof(unsigned short));
if (!green_tbl) {
TIFFError(infilename,
"Can't allocate space for green component table");
_TIFFfree(clr_tbl);
goto bad2;
}
blue_tbl = (unsigned short*)
_TIFFmalloc(((tmsize_t)1)<<depth * sizeof(unsigned short));
if (!blue_tbl) {
TIFFError(infilename,
"Can't allocate space for blue component table");
_TIFFfree(clr_tbl);
goto bad3;
}
for(clr = 0; clr < clr_tbl_size; clr++) {
red_tbl[clr] = 257*clr_tbl[clr*n_clr_elems+2];
green_tbl[clr] = 257*clr_tbl[clr*n_clr_elems+1];
blue_tbl[clr] = 257*clr_tbl[clr*n_clr_elems];
}
_TIFFfree(clr_tbl);
break;
case 16:
case 24:
nbands = 3;
depth = info_hdr.iBitCount / nbands;
photometric = PHOTOMETRIC_RGB;
break;
case 32:
nbands = 3;
depth = 8;
photometric = PHOTOMETRIC_RGB;
break;
default:
break;
}
/* -------------------------------------------------------------------- */
/* Create output file. */
/* -------------------------------------------------------------------- */
TIFFSetField(out, TIFFTAG_IMAGEWIDTH, width);
TIFFSetField(out, TIFFTAG_IMAGELENGTH, length);
TIFFSetField(out, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, nbands);
TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, depth);
TIFFSetField(out, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
TIFFSetField(out, TIFFTAG_PHOTOMETRIC, photometric);
TIFFSetField(out, TIFFTAG_ROWSPERSTRIP,
TIFFDefaultStripSize(out, rowsperstrip));
if (red_tbl && green_tbl && blue_tbl) {
TIFFSetField(out, TIFFTAG_COLORMAP,
red_tbl, green_tbl, blue_tbl);
}
if (compression == (uint16) -1)
compression = COMPRESSION_PACKBITS;
TIFFSetField(out, TIFFTAG_COMPRESSION, compression);
switch (compression) {
case COMPRESSION_JPEG:
if (photometric == PHOTOMETRIC_RGB
&& jpegcolormode == JPEGCOLORMODE_RGB)
photometric = PHOTOMETRIC_YCBCR;
TIFFSetField(out, TIFFTAG_JPEGQUALITY, quality);
TIFFSetField(out, TIFFTAG_JPEGCOLORMODE, jpegcolormode);
break;
case COMPRESSION_LZW:
case COMPRESSION_DEFLATE:
if (predictor != 0)
TIFFSetField(out, TIFFTAG_PREDICTOR, predictor);
break;
}
/* -------------------------------------------------------------------- */
/* Read uncompressed image data. */
/* -------------------------------------------------------------------- */
if (info_hdr.iCompression == BMPC_RGB) {
uint32 offset, size;
char *scanbuf;
/* XXX: Avoid integer overflow. We can calculate size
* in one step using
*
* size = ((width * info_hdr.iBitCount + 31) & ~31) / 8
*
* formulae, but we should check for overflow
* conditions during calculation.
*/
size = width * info_hdr.iBitCount + 31;
if (!width || !info_hdr.iBitCount
|| (size - 31) / info_hdr.iBitCount != width ) {
TIFFError(infilename,
"Wrong image parameters; can't "
"allocate space for scanline buffer");
goto bad3;
}
size = (size & ~31) / 8;
scanbuf = (char *) _TIFFmalloc(size);
if (!scanbuf) {
TIFFError(infilename,
"Can't allocate space for scanline buffer");
goto bad3;
}
for (row = 0; row < length; row++) {
if (info_hdr.iHeight > 0)
offset = file_hdr.iOffBits+(length-row-1)*size;
else
offset = file_hdr.iOffBits + row * size;
if (_TIFF_lseek_f(fd, offset, SEEK_SET) == (_TIFF_off_t)-1) {
TIFFError(infilename,
"scanline %lu: Seek error",
(unsigned long) row);
break;
}
if (read(fd, scanbuf, size) != (long) size) {
TIFFError(infilename,
"scanline %lu: Read error",
(unsigned long) row);
break;
}
rearrangePixels(scanbuf, width, info_hdr.iBitCount);
if (TIFFWriteScanline(out, scanbuf, row, 0)<0) {
TIFFError(infilename,
"scanline %lu: Write error",
(unsigned long) row);
break;
}
}
_TIFFfree(scanbuf);
/* -------------------------------------------------------------------- */
/* Read compressed image data. */
/* -------------------------------------------------------------------- */
} else if ( info_hdr.iCompression == BMPC_RLE8
|| info_hdr.iCompression == BMPC_RLE4 ) {
uint32 i, j, k, runlength;
uint32 compr_size, uncompr_size;
unsigned char *comprbuf;
unsigned char *uncomprbuf;
compr_size = file_hdr.iSize - file_hdr.iOffBits;
uncompr_size = width * length;
/* Detect int overflow */
if( uncompr_size / width != length ) {
TIFFError(infilename,
"Invalid dimensions of BMP file" );
close(fd);
return -1;
}
if ( (compr_size == 0) ||
(compr_size > ((uint32) ~0) >> 1) ||
(uncompr_size == 0) ||
(uncompr_size > ((uint32) ~0) >> 1) ) {
TIFFError(infilename,
"Invalid dimensions of BMP file" );
close(fd);
return -1;
}
comprbuf = (unsigned char *) _TIFFmalloc( compr_size );
if (!comprbuf) {
TIFFError(infilename,
"Can't allocate space for compressed scanline buffer");
goto bad3;
}
uncomprbuf = (unsigned char *)_TIFFmalloc(uncompr_size);
if (!uncomprbuf) {
TIFFError(infilename,
"Can't allocate space for uncompressed scanline buffer");
goto bad3;
}
if (_TIFF_lseek_f(fd, file_hdr.iOffBits, SEEK_SET) == (_TIFF_off_t)-1) {
TIFFError(infilename, "Failed to seek to offset");
goto bad3;
}
if ( read(fd, comprbuf, compr_size) != (long) compr_size ) {
TIFFError(infilename, "Failed to read from file (%s)",
strerror(errno));
goto bad;
}
i = 0;
j = 0;
if (info_hdr.iBitCount == 8) { /* RLE8 */
while(j < uncompr_size && i < compr_size) {
if ( comprbuf[i] ) {
runlength = comprbuf[i++];
while( runlength > 0
&& j < uncompr_size
&& i < compr_size ) {
uncomprbuf[j++] = comprbuf[i];
runlength--;
}
i++;
} else {
i++;
if (comprbuf[i] == 0) /* Next scanline */
i++;
else if (comprbuf[i] == 1) /* End of image */
break;
else if (comprbuf[i] == 2) { /* Move to... */
i++;
if (i < compr_size - 1) {
j+=comprbuf[i]+comprbuf[i+1]*width;
i += 2;
}
else
break;
} else { /* Absolute mode */
runlength = comprbuf[i++];
for (k = 0; k < runlength && j < uncompr_size && i < compr_size; k++)
uncomprbuf[j++] = comprbuf[i++];
if ( k & 0x01 )
i++;
}
}
}
}
else { /* RLE4 */
while( j < uncompr_size && i < compr_size ) {
if ( comprbuf[i] ) {
runlength = comprbuf[i++];
while( runlength > 0 && j < uncompr_size && i < compr_size ) {
if ( runlength & 0x01 )
uncomprbuf[j++] = (comprbuf[i] & 0xF0) >> 4;
else
uncomprbuf[j++] = comprbuf[i] & 0x0F;
runlength--;
}
i++;
} else {
i++;
if (comprbuf[i] == 0) /* Next scanline */
i++;
else if (comprbuf[i] == 1) /* End of image */
break;
else if (comprbuf[i] == 2) { /* Move to... */
i++;
if (i < compr_size - 1) {
j+=comprbuf[i]+comprbuf[i+1]*width;
i += 2;
}
else
break;
} else { /* Absolute mode */
runlength = comprbuf[i++];
for (k = 0; k < runlength && j < uncompr_size && i < compr_size; k++) {
if (k & 0x01)
uncomprbuf[j++] = comprbuf[i++] & 0x0F;
else
uncomprbuf[j++] = (comprbuf[i] & 0xF0) >> 4;
}
if (k & 0x01)
i++;
}
}
}
}
_TIFFfree(comprbuf);
for (row = 0; row < length; row++) {
if (TIFFWriteScanline(out,
uncomprbuf + (length - row - 1) * width,
row, 0) < 0) {
TIFFError(infilename,
"scanline %lu: Write error.\n",
(unsigned long) row);
}
}
_TIFFfree(uncomprbuf);
}
TIFFWriteDirectory(out);
if (blue_tbl) {
_TIFFfree(blue_tbl);
blue_tbl=NULL;
}
if (green_tbl) {
_TIFFfree(green_tbl);
green_tbl=NULL;
}
if (red_tbl) {
_TIFFfree(red_tbl);
red_tbl=NULL;
}
}
bad3:
if (blue_tbl)
_TIFFfree(blue_tbl);
bad2:
if (green_tbl)
_TIFFfree(green_tbl);
bad1:
if (red_tbl)
_TIFFfree(red_tbl);
bad:
close(fd);
if (out)
TIFFClose(out);
return 0;
}
/*
* Image data in BMP file stored in BGR (or ABGR) format. We should rearrange
* pixels to RGB (RGBA) format.
*/
static void
rearrangePixels(char *buf, uint32 width, uint32 bit_count)
{
char tmp;
uint32 i;
switch(bit_count) {
case 16: /* FIXME: need a sample file */
break;
case 24:
for (i = 0; i < width; i++, buf += 3) {
tmp = *buf;
*buf = *(buf + 2);
*(buf + 2) = tmp;
}
break;
case 32:
{
char *buf1 = buf;
for (i = 0; i < width; i++, buf += 4) {
tmp = *buf;
*buf1++ = *(buf + 2);
*buf1++ = *(buf + 1);
*buf1++ = tmp;
}
}
break;
default:
break;
}
}
static int
processCompressOptions(char* opt)
{
if (strcmp(opt, "none") == 0)
compression = COMPRESSION_NONE;
else if (strcmp(opt, "packbits") == 0)
compression = COMPRESSION_PACKBITS;
else if (strncmp(opt, "jpeg", 4) == 0) {
char* cp = strchr(opt, ':');
compression = 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 (strncmp(opt, "lzw", 3) == 0) {
char* cp = strchr(opt, ':');
if (cp)
predictor = atoi(cp+1);
compression = COMPRESSION_LZW;
} else if (strncmp(opt, "zip", 3) == 0) {
char* cp = strchr(opt, ':');
if (cp)
predictor = atoi(cp+1);
compression = COMPRESSION_DEFLATE;
} else
return (0);
return (1);
}
static char* stuff[] = {
"bmp2tiff --- convert Windows BMP files to TIFF",
"usage: bmp2tiff [options] input.bmp [input2.bmp ...] output.tif",
"where options are:",
" -r # make each strip have no more than # rows",
"",
" -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 none use no compression algorithm on output",
"",
"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",
" -o out.tif write output to out.tif",
" -h this help message",
NULL
};
static void
usage(void)
{
char buf[BUFSIZ];
int i;
setbuf(stderr, buf);
fprintf(stderr, "%s\n\n", TIFFGetVersion());
for (i = 0; stuff[i] != NULL; i++)
fprintf(stderr, "%s\n", stuff[i]);
exit(-1);
}
/* vim: set ts=8 sts=8 sw=8 noet: */
/*
* Local Variables:
* mode: c
* c-basic-offset: 8
* fill-column: 78
* End:
*/
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