summaryrefslogtreecommitdiff
path: root/tiff/tools/bmp2tiff.c
diff options
context:
space:
mode:
Diffstat (limited to 'tiff/tools/bmp2tiff.c')
-rwxr-xr-xtiff/tools/bmp2tiff.c869
1 files changed, 869 insertions, 0 deletions
diff --git a/tiff/tools/bmp2tiff.c b/tiff/tools/bmp2tiff.c
new file mode 100755
index 0000000..48fcdc2
--- /dev/null
+++ b/tiff/tools/bmp2tiff.c
@@ -0,0 +1,869 @@
+/* $Id: bmp2tiff.c,v 1.24 2014-12-21 15:15:32 erouault 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 <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 "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;
+ struct stat 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;
+ extern int optind;
+ extern char* optarg;
+
+ 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;
+ }
+
+ read(fd, file_hdr.bType, 2);
+ 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 */
+/* -------------------------------------------------------------------- */
+ lseek(fd, 10, SEEK_SET);
+ read(fd, &file_hdr.iOffBits, 4);
+#ifdef WORDS_BIGENDIAN
+ TIFFSwabLong(&file_hdr.iOffBits);
+#endif
+ fstat(fd, &instat);
+ file_hdr.iSize = instat.st_size;
+
+/* -------------------------------------------------------------------- */
+/* Read the BMPInfoHeader. */
+/* -------------------------------------------------------------------- */
+
+ lseek(fd, BFH_SIZE, SEEK_SET);
+ read(fd, &info_hdr.iSize, 4);
+#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) {
+ read(fd, &info_hdr.iWidth, 4);
+ read(fd, &info_hdr.iHeight, 4);
+ read(fd, &info_hdr.iPlanes, 2);
+ read(fd, &info_hdr.iBitCount, 2);
+ read(fd, &info_hdr.iCompression, 4);
+ read(fd, &info_hdr.iSizeImage, 4);
+ read(fd, &info_hdr.iXPelsPerMeter, 4);
+ read(fd, &info_hdr.iYPelsPerMeter, 4);
+ read(fd, &info_hdr.iClrUsed, 4);
+ read(fd, &info_hdr.iClrImportant, 4);
+#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;
+
+ read(fd, &iShort, 2);
+#ifdef WORDS_BIGENDIAN
+ TIFFSwabShort((uint16*) &iShort);
+#endif
+ info_hdr.iWidth = iShort;
+ read(fd, &iShort, 2);
+#ifdef WORDS_BIGENDIAN
+ TIFFSwabShort((uint16*) &iShort);
+#endif
+ info_hdr.iHeight = iShort;
+ read(fd, &iShort, 2);
+#ifdef WORDS_BIGENDIAN
+ TIFFSwabShort((uint16*) &iShort);
+#endif
+ info_hdr.iPlanes = iShort;
+ read(fd, &iShort, 2);
+#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;
+ }
+
+ lseek(fd, BFH_SIZE + info_hdr.iSize, SEEK_SET);
+ read(fd, clr_tbl, n_clr_elems * clr_tbl_size);
+
+ 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) < 0) {
+ 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;
+ }
+ 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;
+ }
+
+ lseek(fd, file_hdr.iOffBits, SEEK_SET);
+ read(fd, comprbuf, compr_size);
+ 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:
+ */