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-rwxr-xr-xtiff/tools/tiff2rgba.c541
1 files changed, 541 insertions, 0 deletions
diff --git a/tiff/tools/tiff2rgba.c b/tiff/tools/tiff2rgba.c
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+++ b/tiff/tools/tiff2rgba.c
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+/* $Id: tiff2rgba.c,v 1.20 2014-06-08 03:37:02 bfriesen Exp $ */
+
+/*
+ * Copyright (c) 1991-1997 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.
+ */
+
+#include "tif_config.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+
+#ifdef NEED_LIBPORT
+# include "libport.h"
+#endif
+
+#include "tiffiop.h"
+#include "tiffio.h"
+
+#define streq(a,b) (strcmp(a,b) == 0)
+#define CopyField(tag, v) \
+ if (TIFFGetField(in, tag, &v)) TIFFSetField(out, tag, v)
+
+#ifndef howmany
+#define howmany(x, y) (((x)+((y)-1))/(y))
+#endif
+#define roundup(x, y) (howmany(x,y)*((uint32)(y)))
+
+uint16 compression = COMPRESSION_PACKBITS;
+uint32 rowsperstrip = (uint32) -1;
+int process_by_block = 0; /* default is whole image at once */
+int no_alpha = 0;
+int bigtiff_output = 0;
+
+
+static int tiffcvt(TIFF* in, TIFF* out);
+static void usage(int code);
+
+int
+main(int argc, char* argv[])
+{
+ TIFF *in, *out;
+ int c;
+ extern int optind;
+ extern char *optarg;
+
+ while ((c = getopt(argc, argv, "c:r:t:bn8")) != -1)
+ switch (c) {
+ case 'b':
+ process_by_block = 1;
+ break;
+
+ case 'c':
+ if (streq(optarg, "none"))
+ compression = COMPRESSION_NONE;
+ else if (streq(optarg, "packbits"))
+ compression = COMPRESSION_PACKBITS;
+ else if (streq(optarg, "lzw"))
+ compression = COMPRESSION_LZW;
+ else if (streq(optarg, "jpeg"))
+ compression = COMPRESSION_JPEG;
+ else if (streq(optarg, "zip"))
+ compression = COMPRESSION_DEFLATE;
+ else
+ usage(-1);
+ break;
+
+ case 'r':
+ rowsperstrip = atoi(optarg);
+ break;
+
+ case 't':
+ rowsperstrip = atoi(optarg);
+ break;
+
+ case 'n':
+ no_alpha = 1;
+ break;
+
+ case '8':
+ bigtiff_output = 1;
+ break;
+
+ case '?':
+ usage(0);
+ /*NOTREACHED*/
+ }
+
+ if (argc - optind < 2)
+ usage(-1);
+
+ out = TIFFOpen(argv[argc-1], bigtiff_output?"w8":"w");
+ if (out == NULL)
+ return (-2);
+
+ for (; optind < argc-1; optind++) {
+ in = TIFFOpen(argv[optind], "r");
+ if (in != NULL) {
+ do {
+ if (!tiffcvt(in, out) ||
+ !TIFFWriteDirectory(out)) {
+ (void) TIFFClose(out);
+ (void) TIFFClose(in);
+ return (1);
+ }
+ } while (TIFFReadDirectory(in));
+ (void) TIFFClose(in);
+ }
+ }
+ (void) TIFFClose(out);
+ return (0);
+}
+
+static int
+cvt_by_tile( TIFF *in, TIFF *out )
+
+{
+ uint32* raster; /* retrieve RGBA image */
+ uint32 width, height; /* image width & height */
+ uint32 tile_width, tile_height;
+ uint32 row, col;
+ uint32 *wrk_line;
+ int ok = 1;
+
+ TIFFGetField(in, TIFFTAG_IMAGEWIDTH, &width);
+ TIFFGetField(in, TIFFTAG_IMAGELENGTH, &height);
+
+ if( !TIFFGetField(in, TIFFTAG_TILEWIDTH, &tile_width)
+ || !TIFFGetField(in, TIFFTAG_TILELENGTH, &tile_height) ) {
+ TIFFError(TIFFFileName(in), "Source image not tiled");
+ return (0);
+ }
+
+ TIFFSetField(out, TIFFTAG_TILEWIDTH, tile_width );
+ TIFFSetField(out, TIFFTAG_TILELENGTH, tile_height );
+
+ /*
+ * Allocate tile buffer
+ */
+ raster = (uint32*)_TIFFmalloc(tile_width * tile_height * sizeof (uint32));
+ if (raster == 0) {
+ TIFFError(TIFFFileName(in), "No space for raster buffer");
+ return (0);
+ }
+
+ /*
+ * Allocate a scanline buffer for swapping during the vertical
+ * mirroring pass.
+ */
+ wrk_line = (uint32*)_TIFFmalloc(tile_width * sizeof (uint32));
+ if (!wrk_line) {
+ TIFFError(TIFFFileName(in), "No space for raster scanline buffer");
+ ok = 0;
+ }
+
+ /*
+ * Loop over the tiles.
+ */
+ for( row = 0; ok && row < height; row += tile_height )
+ {
+ for( col = 0; ok && col < width; col += tile_width )
+ {
+ uint32 i_row;
+
+ /* Read the tile into an RGBA array */
+ if (!TIFFReadRGBATile(in, col, row, raster)) {
+ ok = 0;
+ break;
+ }
+
+
+ /*
+ * XXX: raster array has 4-byte unsigned integer type, that is why
+ * we should rearrange it here.
+ */
+#if HOST_BIGENDIAN
+ TIFFSwabArrayOfLong(raster, tile_width * tile_height);
+#endif
+
+ /*
+ * For some reason the TIFFReadRGBATile() function chooses the
+ * lower left corner as the origin. Vertically mirror scanlines.
+ */
+ for( i_row = 0; i_row < tile_height / 2; i_row++ )
+ {
+ uint32 *top_line, *bottom_line;
+
+ top_line = raster + tile_width * i_row;
+ bottom_line = raster + tile_width * (tile_height-i_row-1);
+
+ _TIFFmemcpy(wrk_line, top_line, 4*tile_width);
+ _TIFFmemcpy(top_line, bottom_line, 4*tile_width);
+ _TIFFmemcpy(bottom_line, wrk_line, 4*tile_width);
+ }
+
+ /*
+ * Write out the result in a tile.
+ */
+
+ if( TIFFWriteEncodedTile( out,
+ TIFFComputeTile( out, col, row, 0, 0),
+ raster,
+ 4 * tile_width * tile_height ) == -1 )
+ {
+ ok = 0;
+ break;
+ }
+ }
+ }
+
+ _TIFFfree( raster );
+ _TIFFfree( wrk_line );
+
+ return ok;
+}
+
+static int
+cvt_by_strip( TIFF *in, TIFF *out )
+
+{
+ uint32* raster; /* retrieve RGBA image */
+ uint32 width, height; /* image width & height */
+ uint32 row;
+ uint32 *wrk_line;
+ int ok = 1;
+
+ TIFFGetField(in, TIFFTAG_IMAGEWIDTH, &width);
+ TIFFGetField(in, TIFFTAG_IMAGELENGTH, &height);
+
+ if( !TIFFGetField(in, TIFFTAG_ROWSPERSTRIP, &rowsperstrip) ) {
+ TIFFError(TIFFFileName(in), "Source image not in strips");
+ return (0);
+ }
+
+ TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, rowsperstrip);
+
+ /*
+ * Allocate strip buffer
+ */
+ raster = (uint32*)_TIFFmalloc(width * rowsperstrip * sizeof (uint32));
+ if (raster == 0) {
+ TIFFError(TIFFFileName(in), "No space for raster buffer");
+ return (0);
+ }
+
+ /*
+ * Allocate a scanline buffer for swapping during the vertical
+ * mirroring pass.
+ */
+ wrk_line = (uint32*)_TIFFmalloc(width * sizeof (uint32));
+ if (!wrk_line) {
+ TIFFError(TIFFFileName(in), "No space for raster scanline buffer");
+ ok = 0;
+ }
+
+ /*
+ * Loop over the strips.
+ */
+ for( row = 0; ok && row < height; row += rowsperstrip )
+ {
+ int rows_to_write, i_row;
+
+ /* Read the strip into an RGBA array */
+ if (!TIFFReadRGBAStrip(in, row, raster)) {
+ ok = 0;
+ break;
+ }
+
+ /*
+ * XXX: raster array has 4-byte unsigned integer type, that is why
+ * we should rearrange it here.
+ */
+#if HOST_BIGENDIAN
+ TIFFSwabArrayOfLong(raster, width * rowsperstrip);
+#endif
+
+ /*
+ * Figure out the number of scanlines actually in this strip.
+ */
+ if( row + rowsperstrip > height )
+ rows_to_write = height - row;
+ else
+ rows_to_write = rowsperstrip;
+
+ /*
+ * For some reason the TIFFReadRGBAStrip() function chooses the
+ * lower left corner as the origin. Vertically mirror scanlines.
+ */
+
+ for( i_row = 0; i_row < rows_to_write / 2; i_row++ )
+ {
+ uint32 *top_line, *bottom_line;
+
+ top_line = raster + width * i_row;
+ bottom_line = raster + width * (rows_to_write-i_row-1);
+
+ _TIFFmemcpy(wrk_line, top_line, 4*width);
+ _TIFFmemcpy(top_line, bottom_line, 4*width);
+ _TIFFmemcpy(bottom_line, wrk_line, 4*width);
+ }
+
+ /*
+ * Write out the result in a strip
+ */
+
+ if( TIFFWriteEncodedStrip( out, row / rowsperstrip, raster,
+ 4 * rows_to_write * width ) == -1 )
+ {
+ ok = 0;
+ break;
+ }
+ }
+
+ _TIFFfree( raster );
+ _TIFFfree( wrk_line );
+
+ return ok;
+}
+
+/*
+ * cvt_whole_image()
+ *
+ * read the whole image into one big RGBA buffer and then write out
+ * strips from that. This is using the traditional TIFFReadRGBAImage()
+ * API that we trust.
+ */
+
+static int
+cvt_whole_image( TIFF *in, TIFF *out )
+
+{
+ uint32* raster; /* retrieve RGBA image */
+ uint32 width, height; /* image width & height */
+ uint32 row;
+ size_t pixel_count;
+
+ TIFFGetField(in, TIFFTAG_IMAGEWIDTH, &width);
+ TIFFGetField(in, TIFFTAG_IMAGELENGTH, &height);
+ pixel_count = width * height;
+
+ /* XXX: Check the integer overflow. */
+ if (!width || !height || pixel_count / width != height) {
+ TIFFError(TIFFFileName(in),
+ "Malformed input file; can't allocate buffer for raster of %lux%lu size",
+ (unsigned long)width, (unsigned long)height);
+ return 0;
+ }
+
+ rowsperstrip = TIFFDefaultStripSize(out, rowsperstrip);
+ TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, rowsperstrip);
+
+ raster = (uint32*)_TIFFCheckMalloc(in, pixel_count, sizeof(uint32), "raster buffer");
+ if (raster == 0) {
+ TIFFError(TIFFFileName(in), "Failed to allocate buffer (%lu elements of %lu each)",
+ (unsigned long)pixel_count, (unsigned long)sizeof(uint32));
+ return (0);
+ }
+
+ /* Read the image in one chunk into an RGBA array */
+ if (!TIFFReadRGBAImageOriented(in, width, height, raster,
+ ORIENTATION_TOPLEFT, 0)) {
+ _TIFFfree(raster);
+ return (0);
+ }
+
+ /*
+ * XXX: raster array has 4-byte unsigned integer type, that is why
+ * we should rearrange it here.
+ */
+#if HOST_BIGENDIAN
+ TIFFSwabArrayOfLong(raster, width * height);
+#endif
+
+ /*
+ * Do we want to strip away alpha components?
+ */
+ if (no_alpha)
+ {
+ size_t count = pixel_count;
+ unsigned char *src, *dst;
+
+ src = dst = (unsigned char *) raster;
+ while (count > 0)
+ {
+ *(dst++) = *(src++);
+ *(dst++) = *(src++);
+ *(dst++) = *(src++);
+ src++;
+ count--;
+ }
+ }
+
+ /*
+ * Write out the result in strips
+ */
+ for (row = 0; row < height; row += rowsperstrip)
+ {
+ unsigned char * raster_strip;
+ int rows_to_write;
+ int bytes_per_pixel;
+
+ if (no_alpha)
+ {
+ raster_strip = ((unsigned char *) raster) + 3 * row * width;
+ bytes_per_pixel = 3;
+ }
+ else
+ {
+ raster_strip = (unsigned char *) (raster + row * width);
+ bytes_per_pixel = 4;
+ }
+
+ if( row + rowsperstrip > height )
+ rows_to_write = height - row;
+ else
+ rows_to_write = rowsperstrip;
+
+ if( TIFFWriteEncodedStrip( out, row / rowsperstrip, raster_strip,
+ bytes_per_pixel * rows_to_write * width ) == -1 )
+ {
+ _TIFFfree( raster );
+ return 0;
+ }
+ }
+
+ _TIFFfree( raster );
+
+ return 1;
+}
+
+
+static int
+tiffcvt(TIFF* in, TIFF* out)
+{
+ uint32 width, height; /* image width & height */
+ uint16 shortv;
+ float floatv;
+ char *stringv;
+ uint32 longv;
+ uint16 v[1];
+
+ TIFFGetField(in, TIFFTAG_IMAGEWIDTH, &width);
+ TIFFGetField(in, TIFFTAG_IMAGELENGTH, &height);
+
+ CopyField(TIFFTAG_SUBFILETYPE, longv);
+ TIFFSetField(out, TIFFTAG_IMAGEWIDTH, width);
+ TIFFSetField(out, TIFFTAG_IMAGELENGTH, height);
+ TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, 8);
+ TIFFSetField(out, TIFFTAG_COMPRESSION, compression);
+ TIFFSetField(out, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
+
+ CopyField(TIFFTAG_FILLORDER, shortv);
+ TIFFSetField(out, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
+
+ if( no_alpha )
+ TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, 3);
+ else
+ TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, 4);
+
+ if( !no_alpha )
+ {
+ v[0] = EXTRASAMPLE_ASSOCALPHA;
+ TIFFSetField(out, TIFFTAG_EXTRASAMPLES, 1, v);
+ }
+
+ CopyField(TIFFTAG_XRESOLUTION, floatv);
+ CopyField(TIFFTAG_YRESOLUTION, floatv);
+ CopyField(TIFFTAG_RESOLUTIONUNIT, shortv);
+ TIFFSetField(out, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
+ TIFFSetField(out, TIFFTAG_SOFTWARE, TIFFGetVersion());
+ CopyField(TIFFTAG_DOCUMENTNAME, stringv);
+
+ if( process_by_block && TIFFIsTiled( in ) )
+ return( cvt_by_tile( in, out ) );
+ else if( process_by_block )
+ return( cvt_by_strip( in, out ) );
+ else
+ return( cvt_whole_image( in, out ) );
+}
+
+static char* stuff[] = {
+ "usage: tiff2rgba [-c comp] [-r rows] [-b] [-n] [-8] input... output",
+ "where comp is one of the following compression algorithms:",
+ " jpeg\t\tJPEG encoding",
+ " zip\t\tZip/Deflate encoding",
+ " lzw\t\tLempel-Ziv & Welch encoding",
+ " packbits\tPackBits encoding",
+ " none\t\tno compression",
+ "and the other options are:",
+ " -r\trows/strip",
+ " -b (progress by block rather than as a whole image)",
+ " -n don't emit alpha component.",
+ " -8 write BigTIFF file instead of ClassicTIFF",
+ NULL
+};
+
+static void
+usage(int code)
+{
+ 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(code);
+}
+
+/* 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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