b22be0db67
as argument". (main): Fix Coverity 1024678 "Unchecked return value from library". (main): Fix Coverity 1024679 "Unchecked return value from library". (main): Fix Coverity 1214160 "Ignoring number of bytes read".
935 lines
33 KiB
C
935 lines
33 KiB
C
/* $Id: bmp2tiff.c,v 1.25 2015-05-29 02:37:56 bfriesen Exp $
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|
*
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* Project: libtiff tools
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* Purpose: Convert Windows BMP files in TIFF.
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* Author: Andrey Kiselev, dron@ak4719.spb.edu
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*
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|
******************************************************************************
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* Copyright (c) 2004, Andrey Kiselev <dron@ak4719.spb.edu>
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*
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* Permission to use, copy, modify, distribute, and sell this software and
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* its documentation for any purpose is hereby granted without fee, provided
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* that (i) the above copyright notices and this permission notice appear in
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* all copies of the software and related documentation, and (ii) the names of
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* Sam Leffler and Silicon Graphics may not be used in any advertising or
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* publicity relating to the software without the specific, prior written
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* permission of Sam Leffler and Silicon Graphics.
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*
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* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
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* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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*
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* IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
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* ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
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* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
|
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* WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
|
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* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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|
|
|
#include "tif_config.h"
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|
|
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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|
|
|
#ifdef HAVE_UNISTD_H
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|
# include <unistd.h>
|
|
#endif
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|
|
|
#if HAVE_FCNTL_H
|
|
# include <fcntl.h>
|
|
#endif
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|
|
|
#if HAVE_SYS_TYPES_H
|
|
# include <sys/types.h>
|
|
#endif
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|
|
|
#if HAVE_IO_H
|
|
# include <io.h>
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|
#endif
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|
|
|
#ifdef NEED_LIBPORT
|
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# include "libport.h"
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#endif
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|
|
#include "tiffio.h"
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|
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#ifndef O_BINARY
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|
# define O_BINARY 0
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#endif
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|
|
|
enum BMPType
|
|
{
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|
BMPT_WIN4, /* BMP used in Windows 3.0/NT 3.51/95 */
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|
BMPT_WIN5, /* BMP used in Windows NT 4.0/98/Me/2000/XP */
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|
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
|
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* BMPInfoHeader structure. An array of BMPColorEntry structures (also called
|
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* a colour table) follows the bitmap information header structure. The colour
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* table is followed by a second array of indexes into the colour table (the
|
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* actual bitmap data). Data may be comressed, for 4-bpp and 8-bpp used RLE
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* compression.
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*
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* +---------------------+
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* | BMPFileHeader |
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* +---------------------+
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* | BMPInfoHeader |
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* +---------------------+
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* | BMPColorEntry array |
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* +---------------------+
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* | Colour-index array |
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* +---------------------+
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*
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* All numbers stored in Intel order with least significant byte first.
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*/
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|
|
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enum BMPComprMethod
|
|
{
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BMPC_RGB = 0L, /* Uncompressed */
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BMPC_RLE8 = 1L, /* RLE for 8 bpp images */
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BMPC_RLE4 = 2L, /* RLE for 4 bpp images */
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BMPC_BITFIELDS = 3L, /* Bitmap is not compressed and the colour table
|
|
* consists of three DWORD color masks that specify
|
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* the red, green, and blue components of each
|
|
* pixel. This is valid when used with
|
|
* 16- and 32-bpp bitmaps. */
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BMPC_JPEG = 4L, /* Indicates that the image is a JPEG image. */
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BMPC_PNG = 5L /* Indicates that the image is a PNG image. */
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|
};
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|
|
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enum BMPLCSType /* Type of logical color space. */
|
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{
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BMPLT_CALIBRATED_RGB = 0, /* This value indicates that endpoints and
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* gamma values are given in the appropriate
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|
* fields. */
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BMPLT_DEVICE_RGB = 1,
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BMPLT_DEVICE_CMYK = 2
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|
};
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|
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typedef struct
|
|
{
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int32 iCIEX;
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int32 iCIEY;
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int32 iCIEZ;
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|
} BMPCIEXYZ;
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|
|
|
typedef struct /* This structure contains the x, y, and z */
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|
{ /* coordinates of the three colors that */
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/* correspond */
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BMPCIEXYZ iCIERed; /* to the red, green, and blue endpoints for */
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BMPCIEXYZ iCIEGreen; /* a specified logical color space. */
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BMPCIEXYZ iCIEBlue;
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} BMPCIEXYZTriple;
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typedef struct
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|
{
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char bType[2]; /* Signature "BM" */
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uint32 iSize; /* Size in bytes of the bitmap file. Should
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* always be ignored while reading because
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* of error in Windows 3.0 SDK's description
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* of this field */
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uint16 iReserved1; /* Reserved, set as 0 */
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uint16 iReserved2; /* Reserved, set as 0 */
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uint32 iOffBits; /* Offset of the image from file start in bytes */
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} BMPFileHeader;
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/* File header size in bytes: */
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const int BFH_SIZE = 14;
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typedef struct
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|
{
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uint32 iSize; /* Size of BMPInfoHeader structure in bytes.
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* Should be used to determine start of the
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* colour table */
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int32 iWidth; /* Image width */
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int32 iHeight; /* Image height. If positive, image has bottom
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* left origin, if negative --- top left. */
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int16 iPlanes; /* Number of image planes (must be set to 1) */
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int16 iBitCount; /* Number of bits per pixel (1, 4, 8, 16, 24
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* or 32). If 0 then the number of bits per
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* pixel is specified or is implied by the
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* JPEG or PNG format. */
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uint32 iCompression; /* Compression method */
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uint32 iSizeImage; /* Size of uncomressed image in bytes. May
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* be 0 for BMPC_RGB bitmaps. If iCompression
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* is BI_JPEG or BI_PNG, iSizeImage indicates
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* the size of the JPEG or PNG image buffer. */
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int32 iXPelsPerMeter; /* X resolution, pixels per meter (0 if not used) */
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int32 iYPelsPerMeter; /* Y resolution, pixels per meter (0 if not used) */
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uint32 iClrUsed; /* Size of colour table. If 0, iBitCount should
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* be used to calculate this value
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* (1<<iBitCount). This value should be
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* unsigned for proper shifting. */
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int32 iClrImportant; /* Number of important colours. If 0, all
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* colours are required */
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/*
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* Fields above should be used for bitmaps, compatible with Windows NT 3.51
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* and earlier. Windows 98/Me, Windows 2000/XP introduces additional fields:
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*/
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int32 iRedMask; /* Colour mask that specifies the red component
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* of each pixel, valid only if iCompression
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* is set to BI_BITFIELDS. */
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int32 iGreenMask; /* The same for green component */
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int32 iBlueMask; /* The same for blue component */
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int32 iAlphaMask; /* Colour mask that specifies the alpha
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* component of each pixel. */
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uint32 iCSType; /* Colour space of the DIB. */
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BMPCIEXYZTriple sEndpoints; /* This member is ignored unless the iCSType
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* member specifies BMPLT_CALIBRATED_RGB. */
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int32 iGammaRed; /* Toned response curve for red. This member
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* is ignored unless color values are
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* calibrated RGB values and iCSType is set to
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* BMPLT_CALIBRATED_RGB. Specified
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* in 16^16 format. */
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int32 iGammaGreen; /* Toned response curve for green. */
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int32 iGammaBlue; /* Toned response curve for blue. */
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} BMPInfoHeader;
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/*
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* Info header size in bytes:
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*/
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const unsigned int BIH_WIN4SIZE = 40; /* for BMPT_WIN4 */
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const unsigned int BIH_WIN5SIZE = 57; /* for BMPT_WIN5 */
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const unsigned int BIH_OS21SIZE = 12; /* for BMPT_OS21 */
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const unsigned int BIH_OS22SIZE = 64; /* for BMPT_OS22 */
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/*
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|
* We will use plain byte array instead of this structure, but declaration
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* provided for reference
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*/
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typedef struct
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{
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char bBlue;
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char bGreen;
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char bRed;
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char bReserved; /* Must be 0 */
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} BMPColorEntry;
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static uint16 compression = (uint16) -1;
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static int jpegcolormode = JPEGCOLORMODE_RGB;
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static int quality = 75; /* JPEG quality */
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static uint16 predictor = 0;
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static void usage(void);
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static int processCompressOptions(char*);
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static void rearrangePixels(char *, uint32, uint32);
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int
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main(int argc, char* argv[])
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{
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uint32 width, length;
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uint16 nbands = 1; /* number of bands in input image */
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uint16 depth = 8; /* bits per pixel in input image */
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uint32 rowsperstrip = (uint32) -1;
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uint16 photometric = PHOTOMETRIC_MINISBLACK;
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int fd = 0;
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struct stat instat;
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char *outfilename = NULL, *infilename = NULL;
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TIFF *out = NULL;
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BMPFileHeader file_hdr;
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BMPInfoHeader info_hdr;
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int bmp_type;
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uint32 clr_tbl_size, n_clr_elems = 3;
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unsigned char *clr_tbl;
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unsigned short *red_tbl = NULL, *green_tbl = NULL, *blue_tbl = NULL;
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uint32 row, clr;
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int c;
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extern int optind;
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extern char* optarg;
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while ((c = getopt(argc, argv, "c:r:o:h")) != -1) {
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switch (c) {
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case 'c': /* compression scheme */
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if (!processCompressOptions(optarg))
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usage();
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break;
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case 'r': /* rows/strip */
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|
rowsperstrip = atoi(optarg);
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|
break;
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|
case 'o':
|
|
outfilename = optarg;
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break;
|
|
case 'h':
|
|
usage();
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default:
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break;
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|
}
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|
}
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|
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if (argc - optind < 2)
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usage();
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|
|
if (outfilename == NULL)
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outfilename = argv[argc-1];
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out = TIFFOpen(outfilename, "w");
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if (out == NULL) {
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TIFFError(infilename, "Cannot open file %s for output",
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outfilename);
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goto bad3;
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|
}
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while (optind < argc-1) {
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infilename = argv[optind];
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optind++;
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fd = open(infilename, O_RDONLY|O_BINARY, 0);
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if (fd < 0) {
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TIFFError(infilename, "Cannot open input file");
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return -1;
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}
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|
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if (read(fd, file_hdr.bType, 2) != 2) {
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TIFFError(infilename, "Failed to read from file (%s)",
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strerror(errno));
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goto bad;
|
|
}
|
|
if(file_hdr.bType[0] != 'B' || file_hdr.bType[1] != 'M') {
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TIFFError(infilename, "File is not BMP");
|
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goto bad;
|
|
}
|
|
|
|
/* -------------------------------------------------------------------- */
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/* Read the BMPFileHeader. We need iOffBits value only */
|
|
/* -------------------------------------------------------------------- */
|
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if (lseek(fd, 10, SEEK_SET) == (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 (fstat(fd, &instat) == -1) {
|
|
TIFFError(infilename, "Failed obtain file information");
|
|
goto bad;
|
|
}
|
|
file_hdr.iSize = instat.st_size;
|
|
|
|
/* -------------------------------------------------------------------- */
|
|
/* Read the BMPInfoHeader. */
|
|
/* -------------------------------------------------------------------- */
|
|
|
|
if (lseek(fd, BFH_SIZE, SEEK_SET) == (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 (lseek(fd, BFH_SIZE + info_hdr.iSize, SEEK_SET) == (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 (lseek(fd, offset, SEEK_SET) == (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 (lseek(fd, file_hdr.iOffBits, SEEK_SET) == (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:
|
|
*/
|