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+/* tiff loading for GIMP
+ * -Peter Mattis
+ *
+ * The TIFF loading code has been completely revamped by Nick Lamb
+ * njl195@zepler.org.uk -- 18 May 1998
+ * And it now gains support for tiles (and doubtless a zillion bugs)
+ * njl195@zepler.org.uk -- 12 June 1999
+ * LZW patent fuss continues :(
+ * njl195@zepler.org.uk -- 20 April 2000
+ * The code for this filter is based on "tifftopnm" and "pnmtotiff",
+ * 2 programs that are a part of the netpbm package.
+ * khk@khk.net -- 13 May 2000
+ * Added support for ICCPROFILE tiff tag. If this tag is present in a
+ * TIFF file, then a parasite is created and vice versa.
+ * peter@kirchgessner.net -- 29 Oct 2002
+ * Progress bar only when run interactive
+ * Added support for layer offsets - pablo.dangelo@web.de -- 7 Jan 2004
+ * Honor EXTRASAMPLES tag while loading images with alphachannel
+ * pablo.dangelo@web.de -- 16 Jan 2004
+ */
+
+/*
+ * tifftopnm.c - converts a Tagged Image File to a portable anymap
+ *
+ * Derived by Jef Poskanzer from tif2ras.c, which is:
+ *
+ * Copyright (c) 1990 by Sun Microsystems, Inc.
+ *
+ * Author: Patrick J. Naughton
+ * naughton@wind.sun.com
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose and without fee is hereby granted,
+ * provided that the above copyright notice appear in all copies and that
+ * both that copyright notice and this permission notice appear in
+ * supporting documentation.
+ *
+ * This file is provided AS IS with no warranties of any kind. The author
+ * shall have no liability with respect to the infringement of copyrights,
+ * trade secrets or any patents by this file or any part thereof. In no
+ * event will the author be liable for any lost revenue or profits or
+ * other special, indirect and consequential damages.
+ */
+
+#include "config.h"
+
+#include <tiffio.h>
+
+#include <libgimp/gimp.h>
+#include <libgimp/gimpui.h>
+
+#include "file-tiff-load.h"
+#include "file-tiff-save.h"
+
+#include "libgimp/stdplugins-intl.h"
+
+
+#define SAVE_PROC "file-tiff-save"
+#define SAVE2_PROC "file-tiff-save2"
+#define PLUG_IN_BINARY "file-tiff"
+
+
+static void query (void);
+static void run (const gchar *name,
+ gint nparams,
+ const GimpParam *param,
+ gint *nreturn_vals,
+ GimpParam **return_vals);
+
+static gboolean image_is_monochrome (gint32 image);
+
+
+const GimpPlugInInfo PLUG_IN_INFO =
+{
+ NULL, /* init_proc */
+ NULL, /* quit_proc */
+ query, /* query_proc */
+ run, /* run_proc */
+};
+
+static TiffSaveVals tsvals =
+{
+ COMPRESSION_NONE, /* compression */
+ TRUE, /* alpha handling */
+ FALSE, /* save transp. pixels */
+ FALSE, /* save exif */
+ FALSE, /* save xmp */
+ FALSE, /* save iptc */
+ TRUE, /* save thumbnail */
+ TRUE, /* save profile */
+ TRUE, /* save layers */
+ TRUE /* crop layers */
+};
+
+static gchar *image_comment = NULL;
+
+
+MAIN ()
+
+
+static void
+query (void)
+{
+ static const GimpParamDef load_args[] =
+ {
+ { GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
+ { GIMP_PDB_STRING, "filename", "The name of the file to load" },
+ { GIMP_PDB_STRING, "raw-filename", "The name of the file to load" }
+ };
+ static const GimpParamDef load_return_vals[] =
+ {
+ { GIMP_PDB_IMAGE, "image", "Output image" }
+ };
+
+#define COMMON_SAVE_ARGS \
+ { GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },\
+ { GIMP_PDB_IMAGE, "image", "Input image" },\
+ { GIMP_PDB_DRAWABLE, "drawable", "Drawable to save" },\
+ { GIMP_PDB_STRING, "filename", "The name of the file to save the image in" },\
+ { GIMP_PDB_STRING, "raw-filename", "The name of the file to save the image in" },\
+ { GIMP_PDB_INT32, "compression", "Compression type: { NONE (0), LZW (1), PACKBITS (2), DEFLATE (3), JPEG (4), CCITT G3 Fax (5), CCITT G4 Fax (6) }" }
+
+ static const GimpParamDef save_args_old[] =
+ {
+ COMMON_SAVE_ARGS
+ };
+
+ static const GimpParamDef save_args[] =
+ {
+ COMMON_SAVE_ARGS,
+ { GIMP_PDB_INT32, "save-transp-pixels", "Keep the color data masked by an alpha channel intact (do not store premultiplied components)" }
+ };
+
+ gimp_install_procedure (LOAD_PROC,
+ "loads files of the tiff file format",
+ "FIXME: write help for tiff_load",
+ "Spencer Kimball, Peter Mattis & Nick Lamb",
+ "Nick Lamb <njl195@zepler.org.uk>",
+ "1995-1996,1998-2003",
+ N_("TIFF image"),
+ NULL,
+ GIMP_PLUGIN,
+ G_N_ELEMENTS (load_args),
+ G_N_ELEMENTS (load_return_vals),
+ load_args, load_return_vals);
+
+ gimp_register_file_handler_mime (LOAD_PROC, "image/tiff");
+ gimp_register_file_handler_uri (LOAD_PROC);
+ gimp_register_magic_load_handler (LOAD_PROC,
+ "tif,tiff",
+ "",
+ "0,string,II*\\0,0,string,MM\\0*");
+
+ gimp_install_procedure (SAVE_PROC,
+ "saves files in the tiff file format",
+ "Saves files in the Tagged Image File Format. "
+ "The value for the saved comment is taken "
+ "from the 'gimp-comment' parasite.",
+ "Spencer Kimball & Peter Mattis",
+ "Spencer Kimball & Peter Mattis",
+ "1995-1996,2000-2003",
+ N_("TIFF image"),
+ "RGB*, GRAY*, INDEXED*",
+ GIMP_PLUGIN,
+ G_N_ELEMENTS (save_args_old), 0,
+ save_args_old, NULL);
+
+ gimp_register_file_handler_mime (SAVE_PROC, "image/tiff");
+ gimp_register_file_handler_uri (SAVE_PROC);
+ gimp_register_save_handler (SAVE_PROC, "tif,tiff", "");
+
+ gimp_install_procedure (SAVE2_PROC,
+ "saves files in the tiff file format",
+ "Saves files in the Tagged Image File Format. "
+ "The value for the saved comment is taken "
+ "from the 'gimp-comment' parasite.",
+ "Spencer Kimball & Peter Mattis",
+ "Spencer Kimball & Peter Mattis",
+ "1995-1996,2000-2003",
+ N_("TIFF image"),
+ "RGB*, GRAY*, INDEXED*",
+ GIMP_PLUGIN,
+ G_N_ELEMENTS (save_args), 0,
+ save_args, NULL);
+}
+
+static void
+run (const gchar *name,
+ gint nparams,
+ const GimpParam *param,
+ gint *nreturn_vals,
+ GimpParam **return_vals)
+{
+ static GimpParam values[2];
+ GimpRunMode run_mode;
+ GimpPDBStatusType status = GIMP_PDB_SUCCESS;
+ GError *error = NULL;
+
+ INIT_I18N ();
+ gegl_init (NULL, NULL);
+
+ run_mode = param[0].data.d_int32;
+
+ *nreturn_vals = 1;
+ *return_vals = values;
+
+ values[0].type = GIMP_PDB_STATUS;
+ values[0].data.d_status = GIMP_PDB_EXECUTION_ERROR;
+
+ if (strcmp (name, LOAD_PROC) == 0)
+ {
+ GFile *file = g_file_new_for_uri (param[1].data.d_string);
+ gint32 image = 0;
+ gboolean resolution_loaded = FALSE;
+ gboolean profile_loaded = FALSE;
+
+ if (run_mode == GIMP_RUN_INTERACTIVE)
+ gimp_ui_init (PLUG_IN_BINARY, FALSE);
+
+ status = load_image (file, run_mode, &image,
+ &resolution_loaded,
+ &profile_loaded,
+ &error);
+
+ if (image > 0)
+ {
+ GimpMetadata *metadata;
+
+ metadata = gimp_image_metadata_load_prepare (image,
+ "image/tiff",
+ file, NULL);
+
+ if (metadata)
+ {
+ GimpMetadataLoadFlags flags = GIMP_METADATA_LOAD_ALL;
+
+ if (resolution_loaded)
+ flags &= ~GIMP_METADATA_LOAD_RESOLUTION;
+
+ if (profile_loaded)
+ flags &= ~GIMP_METADATA_LOAD_COLORSPACE;
+
+ gimp_image_metadata_load_finish (image, "image/tiff",
+ metadata, flags,
+ run_mode == GIMP_RUN_INTERACTIVE);
+
+ g_object_unref (metadata);
+ }
+
+ *nreturn_vals = 2;
+ values[1].type = GIMP_PDB_IMAGE;
+ values[1].data.d_image = image;
+ }
+
+ g_object_unref (file);
+ }
+ else if ((strcmp (name, SAVE_PROC) == 0) ||
+ (strcmp (name, SAVE2_PROC) == 0))
+ {
+ /* Plug-in is either file_tiff_save or file_tiff_save2 */
+
+ GimpMetadata *metadata;
+ GimpMetadataSaveFlags metadata_flags;
+ GimpParasite *parasite;
+ gint32 image = param[1].data.d_int32;
+ gint32 drawable = param[2].data.d_int32;
+ gint32 orig_image = image;
+ GimpExportReturn export = GIMP_EXPORT_CANCEL;
+
+ switch (run_mode)
+ {
+ case GIMP_RUN_INTERACTIVE:
+ case GIMP_RUN_WITH_LAST_VALS:
+ gimp_ui_init (PLUG_IN_BINARY, FALSE);
+ break;
+ default:
+ break;
+ }
+
+ /* Override the defaults with preferences. */
+ metadata = gimp_image_metadata_save_prepare (orig_image,
+ "image/tiff",
+ &metadata_flags);
+ tsvals.save_exif = (metadata_flags & GIMP_METADATA_SAVE_EXIF) != 0;
+ tsvals.save_xmp = (metadata_flags & GIMP_METADATA_SAVE_XMP) != 0;
+ tsvals.save_iptc = (metadata_flags & GIMP_METADATA_SAVE_IPTC) != 0;
+ tsvals.save_thumbnail = (metadata_flags & GIMP_METADATA_SAVE_THUMBNAIL) != 0;
+ tsvals.save_profile = (metadata_flags & GIMP_METADATA_SAVE_COLOR_PROFILE) != 0;
+
+ parasite = gimp_image_get_parasite (orig_image, "gimp-comment");
+ if (parasite)
+ {
+ image_comment = g_strndup (gimp_parasite_data (parasite),
+ gimp_parasite_data_size (parasite));
+ gimp_parasite_free (parasite);
+ }
+
+ switch (run_mode)
+ {
+ case GIMP_RUN_INTERACTIVE:
+ /* Possibly retrieve data */
+ gimp_get_data (SAVE_PROC, &tsvals);
+
+ parasite = gimp_image_get_parasite (orig_image, "tiff-save-options");
+ if (parasite)
+ {
+ const TiffSaveVals *pvals = gimp_parasite_data (parasite);
+
+ if (pvals->compression == COMPRESSION_DEFLATE)
+ tsvals.compression = COMPRESSION_ADOBE_DEFLATE;
+ else
+ tsvals.compression = pvals->compression;
+
+ tsvals.save_transp_pixels = pvals->save_transp_pixels;
+ }
+ gimp_parasite_free (parasite);
+
+ /* First acquire information with a dialog */
+ if (! save_dialog (&tsvals,
+ SAVE_PROC,
+ gimp_drawable_has_alpha (drawable),
+ image_is_monochrome (image),
+ gimp_image_base_type (image) == GIMP_INDEXED,
+ &image_comment))
+ {
+ status = GIMP_PDB_CANCEL;
+ }
+ break;
+
+ case GIMP_RUN_NONINTERACTIVE:
+ /* Make sure all the arguments are there! */
+ if (nparams == 6 || nparams == 7)
+ {
+ switch (param[5].data.d_int32)
+ {
+ case 0: tsvals.compression = COMPRESSION_NONE; break;
+ case 1: tsvals.compression = COMPRESSION_LZW; break;
+ case 2: tsvals.compression = COMPRESSION_PACKBITS; break;
+ case 3: tsvals.compression = COMPRESSION_ADOBE_DEFLATE; break;
+ case 4: tsvals.compression = COMPRESSION_JPEG; break;
+ case 5: tsvals.compression = COMPRESSION_CCITTFAX3; break;
+ case 6: tsvals.compression = COMPRESSION_CCITTFAX4; break;
+ default: status = GIMP_PDB_CALLING_ERROR; break;
+ }
+
+ if (nparams == 7)
+ tsvals.save_transp_pixels = param[6].data.d_int32;
+ else
+ tsvals.save_transp_pixels = TRUE;
+ }
+ else
+ {
+ status = GIMP_PDB_CALLING_ERROR;
+ }
+ break;
+
+ case GIMP_RUN_WITH_LAST_VALS:
+ /* Possibly retrieve data */
+ gimp_get_data (SAVE_PROC, &tsvals);
+
+ parasite = gimp_image_get_parasite (orig_image, "tiff-save-options");
+ if (parasite)
+ {
+ const TiffSaveVals *pvals = gimp_parasite_data (parasite);
+
+ tsvals.compression = pvals->compression;
+ tsvals.save_transp_pixels = pvals->save_transp_pixels;
+ }
+ gimp_parasite_free (parasite);
+ break;
+
+ default:
+ break;
+ }
+
+ switch (run_mode)
+ {
+ case GIMP_RUN_INTERACTIVE:
+ case GIMP_RUN_WITH_LAST_VALS:
+ {
+ GimpExportCapabilities capabilities;
+
+ if (tsvals.compression == COMPRESSION_CCITTFAX3 ||
+ tsvals.compression == COMPRESSION_CCITTFAX4)
+ /* G3/G4 are fax compressions. They only support
+ * monochrome images without alpha support.
+ */
+ capabilities = GIMP_EXPORT_CAN_HANDLE_INDEXED;
+ else
+ capabilities = GIMP_EXPORT_CAN_HANDLE_RGB |
+ GIMP_EXPORT_CAN_HANDLE_GRAY |
+ GIMP_EXPORT_CAN_HANDLE_INDEXED |
+ GIMP_EXPORT_CAN_HANDLE_ALPHA;
+
+ if (tsvals.save_layers)
+ {
+ capabilities |= GIMP_EXPORT_CAN_HANDLE_LAYERS;
+
+ if (tsvals.crop_layers)
+ capabilities |= GIMP_EXPORT_NEEDS_CROP;
+ }
+
+ export = gimp_export_image (&image, &drawable, "TIFF", capabilities);
+
+ if (export == GIMP_EXPORT_CANCEL)
+ {
+ values[0].data.d_status = GIMP_PDB_CANCEL;
+ return;
+ }
+ }
+ break;
+ default:
+ break;
+ }
+
+ if (status == GIMP_PDB_SUCCESS)
+ {
+ GFile *file;
+ gint saved_bpp;
+
+ file = g_file_new_for_uri (param[3].data.d_string);
+
+ if (save_image (file, &tsvals, image, orig_image, image_comment,
+ &saved_bpp, metadata, metadata_flags, &error))
+ {
+ /* Store mvals data */
+ gimp_set_data (SAVE_PROC, &tsvals, sizeof (TiffSaveVals));
+ }
+ else
+ {
+ status = GIMP_PDB_EXECUTION_ERROR;
+ }
+
+ g_object_unref (file);
+ }
+
+ if (export == GIMP_EXPORT_EXPORT)
+ gimp_image_delete (image);
+
+ if (metadata)
+ g_object_unref (metadata);
+ }
+ else
+ {
+ status = GIMP_PDB_CALLING_ERROR;
+ }
+
+ if (status != GIMP_PDB_SUCCESS && error)
+ {
+ *nreturn_vals = 2;
+ values[1].type = GIMP_PDB_STRING;
+ values[1].data.d_string = error->message;
+ }
+
+ values[0].data.d_status = status;
+}
+
+static gboolean
+image_is_monochrome (gint32 image)
+{
+ guchar *colors;
+ gint num_colors;
+ gboolean monochrome = FALSE;
+
+ g_return_val_if_fail (image != -1, FALSE);
+
+ colors = gimp_image_get_colormap (image, &num_colors);
+
+ if (colors)
+ {
+ if (num_colors == 2 || num_colors == 1)
+ {
+ const guchar bw_map[] = { 0, 0, 0, 255, 255, 255 };
+ const guchar wb_map[] = { 255, 255, 255, 0, 0, 0 };
+
+ if (memcmp (colors, bw_map, 3 * num_colors) == 0 ||
+ memcmp (colors, wb_map, 3 * num_colors) == 0)
+ {
+ monochrome = TRUE;
+ }
+ }
+
+ g_free (colors);
+ }
+
+ return monochrome;
+}
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