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- /* The GIMP -- an image manipulation program
- * Copyright (C) 1995 Spencer Kimball and Peter Mattis
- * FITS file plugin
- * reading and writing code Copyright (C) 1997 Peter Kirchgessner
- * e-mail: peter@kirchgessner.net, WWW: http://www.kirchgessner.net
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- */
-
- /* Event history:
- * V 1.00, PK, 05-May-97: Creation
- * V 1.01, PK, 19-May-97: Problem with compilation on Irix fixed
- * V 1.02, PK, 08-Jun-97: Bug with saving gray images fixed
- * V 1.03, PK, 05-Oct-97: Parse rc-file
- * V 1.04, PK, 12-Oct-97: No progress bars for non-interactive mode
- * V 1.05, nn, 20-Dec-97: Initialize image_ID in run()
- * V 1.06, PK, 21-Nov-99: Internationalization
- * Fix bug with gimp_export_image()
- * (moved it from load to save)
- */
- static char ident[] = "@(#) GIMP FITS file-plugin v1.06 21-Nov-99";
-
- #include "config.h"
-
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
-
- #include <gtk/gtk.h>
-
- #include <libgimp/gimp.h>
- #include <libgimp/gimpui.h>
-
- #include "fitsrw.h"
-
- #include "libgimp/stdplugins-intl.h"
-
-
- /* Load info */
- typedef struct
- {
- gint replace; /* replacement for blank/NaN-values */
- gint use_datamin; /* Use DATAMIN/MAX-scaling if possible */
- gint compose; /* compose images with naxis==3 */
- } FITSLoadVals;
-
- typedef struct
- {
- gint run;
- } FITSLoadInterface;
-
-
- /* Declare some local functions.
- */
- static void query (void);
- static void run (gchar *name,
- gint nparams,
- GimpParam *param,
- gint *nreturn_vals,
- GimpParam **return_vals);
-
- static gint32 load_image (gchar *filename);
- static gint save_image (gchar *filename,
- gint32 image_ID,
- gint32 drawable_ID);
-
- static FITS_HDU_LIST *create_fits_header (FITS_FILE *ofp,
- guint width, guint height, guint bpp);
- static gint save_index (FITS_FILE *ofp,
- gint32 image_ID,
- gint32 drawable_ID);
- static gint save_direct (FITS_FILE *ofp,
- gint32 image_ID,
- gint32 drawable_ID);
-
- static gint32 create_new_image (gchar *filename,
- guint pagenum,
- guint width,
- guint height,
- GimpImageBaseType itype,
- GimpImageType dtype,
- gint32 *layer_ID,
- GimpDrawable **drawable,
- GimpPixelRgn *pixel_rgn);
-
- static void check_load_vals (void);
-
- static gint32 load_fits (gchar *filename,
- FITS_FILE *ifp,
- guint picnum,
- guint ncompose);
-
-
- static gint load_dialog (void);
- static void load_ok_callback (GtkWidget *widget,
- gpointer data);
- static void show_fits_errors (void);
-
-
- static FITSLoadVals plvals =
- {
- 0, /* Replace with black */
- 0, /* Do autoscale on pixel-values */
- 0 /* Dont compose images */
- };
-
- static FITSLoadInterface plint =
- {
- FALSE
- };
-
- GimpPlugInInfo PLUG_IN_INFO =
- {
- NULL, /* init_proc */
- NULL, /* quit_proc */
- query, /* query_proc */
- run, /* run_proc */
- };
-
- /* The run mode */
- static GimpRunModeType l_run_mode;
-
-
- MAIN ()
-
- static void
- query (void)
-
- {
- static GimpParamDef load_args[] =
- {
- { GIMP_PDB_INT32, "run_mode", "Interactive, non-interactive" },
- { GIMP_PDB_STRING, "filename", "The name of the file to load" },
- { GIMP_PDB_STRING, "raw_filename", "The name of the file to load" },
- };
- static GimpParamDef load_return_vals[] =
- {
- { GIMP_PDB_IMAGE, "image", "Output image" },
- };
- static gint nload_args = sizeof (load_args) / sizeof (load_args[0]);
- static gint nload_return_vals = (sizeof (load_return_vals) /
- sizeof (load_return_vals[0]));
-
- static GimpParamDef save_args[] =
- {
- { GIMP_PDB_INT32, "run_mode", "Interactive, non-interactive" },
- { 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" },
- };
- static gint nsave_args = sizeof (save_args) / sizeof (save_args[0]);
-
- INIT_I18N();
-
- gimp_install_procedure ("file_fits_load",
- "load file of the FITS file format",
- "load file of the FITS file format (Flexible Image Transport System)",
- "Peter Kirchgessner",
- "Peter Kirchgessner (peter@kirchgessner.net)",
- "1997",
- "<Load>/FITS",
- NULL,
- GIMP_PLUGIN,
- nload_args, nload_return_vals,
- load_args, load_return_vals);
-
- gimp_install_procedure ("file_fits_save",
- "save file in the FITS file format",
- "FITS saving handles all image types except those with alpha channels.",
- "Peter Kirchgessner",
- "Peter Kirchgessner (peter@kirchgessner.net)",
- "1997",
- "<Save>/FITS",
- "RGB, GRAY, INDEXED",
- GIMP_PLUGIN,
- nsave_args, 0,
- save_args, NULL);
-
- /* Register file plugin by plugin name and handable extensions */
- gimp_register_magic_load_handler ("file_fits_load",
- "fit,fits",
- "",
- "0,string,SIMPLE");
- gimp_register_save_handler ("file_fits_save",
- "fit,fits",
- "");
- }
-
-
- static void
- run (gchar *name,
- gint nparams,
- GimpParam *param,
- gint *nreturn_vals,
- GimpParam **return_vals)
- {
- static GimpParam values[2];
- GimpRunModeType run_mode;
- GimpPDBStatusType status = GIMP_PDB_SUCCESS;
- gint32 image_ID;
- gint32 drawable_ID;
- GimpExportReturnType export = GIMP_EXPORT_CANCEL;
-
- l_run_mode = run_mode = (GimpRunModeType)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, "file_fits_load") == 0)
- {
- INIT_I18N_UI();
-
- switch (run_mode)
- {
- case GIMP_RUN_INTERACTIVE:
- /* Possibly retrieve data */
- gimp_get_data ("file_fits_load", &plvals);
-
- if (!load_dialog ())
- status = GIMP_PDB_CANCEL;
- break;
-
- case GIMP_RUN_NONINTERACTIVE:
- if (nparams != 3)
- status = GIMP_PDB_CALLING_ERROR;
- break;
-
- case GIMP_RUN_WITH_LAST_VALS:
- /* Possibly retrieve data */
- gimp_get_data ("file_fits_load", &plvals);
- break;
-
- default:
- break;
- }
-
- if (status == GIMP_PDB_SUCCESS)
- {
- check_load_vals ();
- image_ID = load_image (param[1].data.d_string);
-
- /* Write out error messages of FITS-Library */
- show_fits_errors ();
-
- if (image_ID != -1)
- {
- *nreturn_vals = 2;
- values[1].type = GIMP_PDB_IMAGE;
- values[1].data.d_image = image_ID;
- }
- else
- {
- status = GIMP_PDB_EXECUTION_ERROR;
- }
-
- /* Store plvals data */
- if (status == GIMP_PDB_SUCCESS)
- gimp_set_data ("file_fits_load", &plvals, sizeof (FITSLoadVals));
- }
- }
- else if (strcmp (name, "file_fits_save") == 0)
- {
- INIT_I18N_UI();
-
- image_ID = param[1].data.d_int32;
- drawable_ID = param[2].data.d_int32;
-
- /* eventually export the image */
- switch (run_mode)
- {
- case GIMP_RUN_INTERACTIVE:
- case GIMP_RUN_WITH_LAST_VALS:
- gimp_ui_init ("fits", FALSE);
- export = gimp_export_image (&image_ID, &drawable_ID, "FITS",
- (GIMP_EXPORT_CAN_HANDLE_RGB |
- GIMP_EXPORT_CAN_HANDLE_GRAY |
- GIMP_EXPORT_CAN_HANDLE_INDEXED));
- if (export == GIMP_EXPORT_CANCEL)
- {
- values[0].data.d_status = GIMP_PDB_CANCEL;
- return;
- }
- break;
- default:
- break;
- }
-
- switch (run_mode)
- {
- case GIMP_RUN_INTERACTIVE:
- break;
-
- case GIMP_RUN_NONINTERACTIVE:
- /* Make sure all the arguments are there! */
- if (nparams != 5)
- status = GIMP_PDB_CALLING_ERROR;
- break;
-
- case GIMP_RUN_WITH_LAST_VALS:
- break;
-
- default:
- break;
- }
-
- if (status == GIMP_PDB_SUCCESS)
- {
- if (! save_image (param[3].data.d_string, image_ID, drawable_ID))
- status = GIMP_PDB_EXECUTION_ERROR;
- }
-
- if (export == GIMP_EXPORT_EXPORT)
- gimp_image_delete (image_ID);
- }
- else
- {
- status = GIMP_PDB_CALLING_ERROR;
- }
-
- values[0].data.d_status = status;
- }
-
-
- static gint32
- load_image (gchar *filename)
- {
- gint32 image_ID, *image_list, *nl;
- guint picnum;
- int k, n_images, max_images, hdu_picnum;
- int compose;
- FILE *fp;
- FITS_FILE *ifp;
- FITS_HDU_LIST *hdu;
-
- fp = fopen (filename, "rb");
- if (!fp)
- {
- g_message (_("Can't open file for reading"));
- return (-1);
- }
- fclose (fp);
-
- ifp = fits_open (filename, "r");
- if (ifp == NULL)
- {
- g_message (_("Error during open of FITS file"));
- return (-1);
- }
- if (ifp->n_pic <= 0)
- {
- g_message (_("FITS file keeps no displayable images"));
- fits_close (ifp);
- return (-1);
- }
-
- image_list = (gint32 *)g_malloc (10 * sizeof (gint32));
- n_images = 0;
- max_images = 10;
-
- for (picnum = 1; picnum <= ifp->n_pic; )
- {
- /* Get image info to see if we can compose them */
- hdu = fits_image_info (ifp, picnum, &hdu_picnum);
- if (hdu == NULL) break;
-
- /* Get number of FITS-images to compose */
- compose = ( plvals.compose && (hdu_picnum == 1) && (hdu->naxis == 3)
- && (hdu->naxisn[2] > 1) && (hdu->naxisn[2] <= 4));
- if (compose)
- compose = hdu->naxisn[2];
- else
- compose = 1; /* Load as GRAY */
-
- image_ID = load_fits (filename, ifp, picnum, compose);
-
- /* Write out error messages of FITS-Library */
- show_fits_errors ();
-
- if (image_ID == -1) break;
- if (n_images == max_images)
- {
- nl = (gint32 *)g_realloc (image_list, (max_images+10)*sizeof (gint32));
- if (nl == NULL) break;
- image_list = nl;
- max_images += 10;
- }
- image_list[n_images++] = image_ID;
-
- picnum += compose;
- }
-
- /* Write out error messages of FITS-Library */
- show_fits_errors ();
-
- fits_close (ifp);
-
- /* Display images in reverse order. The last will be displayed by GIMP itself*/
- if (l_run_mode != GIMP_RUN_NONINTERACTIVE)
- {
- for (k = n_images-1; k >= 1; k--)
- {
- gimp_image_undo_enable (image_list[k]);
- gimp_image_clean_all (image_list[k]);
- gimp_display_new (image_list[k]);
- }
- }
-
- image_ID = (n_images > 0) ? image_list[0] : -1;
- g_free (image_list);
-
- return (image_ID);
- }
-
-
- static gint
- save_image (gchar *filename,
- gint32 image_ID,
- gint32 drawable_ID)
- {
- FITS_FILE* ofp;
- GimpImageType drawable_type;
- gint retval;
- char *temp = ident; /* Just to satisfy lint/gcc */
-
- drawable_type = gimp_drawable_type (drawable_ID);
-
- /* Make sure we're not saving an image with an alpha channel */
- if (gimp_drawable_has_alpha (drawable_ID))
- {
- g_message (_("FITS save cannot handle images with alpha channels"));
- return FALSE;
- }
-
- switch (drawable_type)
- {
- case GIMP_INDEXED_IMAGE: case GIMP_INDEXEDA_IMAGE:
- case GIMP_GRAY_IMAGE: case GIMP_GRAYA_IMAGE:
- case GIMP_RGB_IMAGE: case GIMP_RGBA_IMAGE:
- break;
- default:
- g_message (_("Cannot operate on unknown image types"));
- return (FALSE);
- break;
- }
-
- /* Open the output file. */
- ofp = fits_open (filename, "w");
- if (!ofp)
- {
- g_message (_("Can't open file for writing"));
- return (FALSE);
- }
-
- if (l_run_mode != GIMP_RUN_NONINTERACTIVE)
- {
- temp = g_strdup_printf (_("Saving %s:"), filename);
- gimp_progress_init (temp);
- g_free (temp);
- }
-
- if ((drawable_type == GIMP_INDEXED_IMAGE) || (drawable_type == GIMP_INDEXEDA_IMAGE))
- retval = save_index (ofp,image_ID, drawable_ID);
- else
- retval = save_direct (ofp,image_ID, drawable_ID);
-
- fits_close (ofp);
-
- return (retval);
- }
-
-
- /* Check (and correct) the load values plvals */
- static void
- check_load_vals (void)
- {
- if (plvals.replace > 255) plvals.replace = 255;
- }
-
-
- /* Create an image. Sets layer_ID, drawable and rgn. Returns image_ID */
- static gint32
- create_new_image (gchar *filename,
- guint pagenum,
- guint width,
- guint height,
- GimpImageBaseType itype,
- GimpImageType dtype,
- gint32 *layer_ID,
- GimpDrawable **drawable,
- GimpPixelRgn *pixel_rgn)
- {
- gint32 image_ID;
- char *tmp;
-
- image_ID = gimp_image_new (width, height, itype);
- if ((tmp = g_malloc (strlen (filename) + 64)) != NULL)
- {
- sprintf (tmp, "%s-img%ld", filename, (long)pagenum);
- gimp_image_set_filename (image_ID, tmp);
- g_free (tmp);
- }
- else
- gimp_image_set_filename (image_ID, filename);
-
- *layer_ID = gimp_layer_new (image_ID, _("Background"), width, height,
- dtype, 100, GIMP_NORMAL_MODE);
- gimp_image_add_layer (image_ID, *layer_ID, 0);
-
- *drawable = gimp_drawable_get (*layer_ID);
- gimp_pixel_rgn_init (pixel_rgn, *drawable, 0, 0, (*drawable)->width,
- (*drawable)->height, TRUE, FALSE);
-
- return (image_ID);
- }
-
-
- /* Load FITS image. ncompose gives the number of FITS-images which have */
- /* to be composed together. This will result in different GIMP image types: */
- /* 1: GRAY, 2: GRAYA, 3: RGB, 4: RGBA */
- static gint32
- load_fits (gchar *filename,
- FITS_FILE *ifp,
- guint picnum,
- guint ncompose)
- {
- register guchar *dest, *src;
- guchar *data, *data_end, *linebuf;
- int width, height, tile_height, scan_lines;
- int i, j, channel, max_scan;
- double a, b;
- gint32 layer_ID, image_ID;
- GimpPixelRgn pixel_rgn;
- GimpDrawable *drawable;
- GimpImageBaseType itype;
- GimpImageType dtype;
- gint err = 0;
- FITS_HDU_LIST *hdulist;
- FITS_PIX_TRANSFORM trans;
-
- hdulist = fits_seek_image (ifp, (int)picnum);
- if (hdulist == NULL) return (-1);
-
- width = hdulist->naxisn[0]; /* Set the size of the FITS image */
- height = hdulist->naxisn[1];
-
- if (ncompose == 2) { itype = GIMP_GRAY; dtype = GIMP_GRAYA_IMAGE; }
- else if (ncompose == 3) { itype = GIMP_RGB; dtype = GIMP_RGB_IMAGE; }
- else if (ncompose == 4) { itype = GIMP_RGB; dtype = GIMP_RGBA_IMAGE; }
- else { ncompose = 1; itype = GIMP_GRAY; dtype = GIMP_GRAY_IMAGE;}
-
- image_ID = create_new_image (filename, picnum, width, height, itype, dtype,
- &layer_ID, &drawable, &pixel_rgn);
-
- tile_height = gimp_tile_height ();
- data = g_malloc (tile_height * width * ncompose);
- if (data == NULL) return (-1);
- data_end = data + tile_height * width * ncompose;
-
- /* If the transformation from pixel value to */
- /* data value has been specified, use it */
- if ( plvals.use_datamin
- && hdulist->used.datamin && hdulist->used.datamax
- && hdulist->used.bzero && hdulist->used.bscale)
- {
- a = (hdulist->datamin - hdulist->bzero) / hdulist->bscale;
- b = (hdulist->datamax - hdulist->bzero) / hdulist->bscale;
- if (a < b) trans.pixmin = a, trans.pixmax = b;
- else trans.pixmin = b, trans.pixmax = a;
- }
- else
- {
- trans.pixmin = hdulist->pixmin;
- trans.pixmax = hdulist->pixmax;
- }
- trans.datamin = 0.0;
- trans.datamax = 255.0;
- trans.replacement = plvals.replace;
- trans.dsttyp = 'c';
-
- /* FITS stores images with bottom row first. Therefore we have */
- /* to fill the image from bottom to top. */
-
- if (ncompose == 1)
- {
- dest = data + tile_height * width;
- scan_lines = 0;
-
- for (i = 0; i < height; i++)
- {
- /* Read FITS line */
- dest -= width;
- if (fits_read_pixel (ifp, hdulist, width, &trans, dest) != width)
- {
- err = 1;
- break;
- }
-
- scan_lines++;
-
- if ((l_run_mode != GIMP_RUN_NONINTERACTIVE) && ((i % 20) == 0))
- gimp_progress_update ((double)(i+1) / (double)height);
-
- if ((scan_lines == tile_height) || ((i+1) == height))
- {
- gimp_pixel_rgn_set_rect (&pixel_rgn, dest, 0, height-i-1,
- width, scan_lines);
- scan_lines = 0;
- dest = data + tile_height * width;
- }
- if (err) break;
- }
- }
- else /* multiple images to compose */
- {
- linebuf = g_malloc (width);
- if (linebuf == NULL) return (-1);
-
- for (channel = 0; channel < ncompose; channel++)
- {
- dest = data + tile_height * width * ncompose + channel;
- scan_lines = 0;
-
- for (i = 0; i < height; i++)
- {
- if ((channel > 0) && ((i % tile_height) == 0))
- { /* Reload a region for follow up channels */
- max_scan = tile_height;
- if (i + tile_height > height) max_scan = height - i;
- gimp_pixel_rgn_get_rect (&pixel_rgn,
- data_end-max_scan*width*ncompose,
- 0, height-i-max_scan, width,
- max_scan);
- }
-
- /* Read FITS scanline */
- dest -= width*ncompose;
- if (fits_read_pixel (ifp, hdulist, width, &trans, linebuf) != width)
- {
- err = 1;
- break;
- }
- j = width;
- src = linebuf;
- while (j--)
- {
- *dest = *(src++);
- dest += ncompose;
- }
- dest -= width*ncompose;
- scan_lines++;
-
- if ((l_run_mode != GIMP_RUN_NONINTERACTIVE) && ((i % 20) == 0))
- gimp_progress_update ( (double)(channel*height+i+1)
- / (double)(height*ncompose));
-
- if ((scan_lines == tile_height) || ((i+1) == height))
- {
- gimp_pixel_rgn_set_rect (&pixel_rgn, dest-channel,
- 0, height-i-1, width, scan_lines);
- scan_lines = 0;
- dest = data + tile_height * width * ncompose + channel;
- }
- if (err) break;
- }
- }
- g_free (linebuf);
- }
-
- g_free (data);
-
- if (err)
- g_message (_("EOF encountered on reading"));
-
- gimp_drawable_flush (drawable);
-
- return (err ? -1 : image_ID);
- }
-
-
- static FITS_HDU_LIST *
- create_fits_header (FITS_FILE *ofp,
- guint width,
- guint height,
- guint bpp)
- {
- FITS_HDU_LIST *hdulist;
- int print_ctype3 = 0; /* The CTYPE3-card may not be FITS-conforming */
- static char *ctype3_card[] =
- {
- NULL, NULL, NULL, /* bpp = 0: no additional card */
- "COMMENT Image type within GIMP: GIMP_GRAY_IMAGE",
- NULL,
- NULL,
- "COMMENT Image type within GIMP: GIMP_GRAYA_IMAGE (gray with alpha channel)",
- "COMMENT Sequence for NAXIS3 : GRAY, ALPHA",
- "CTYPE3 = 'GRAYA ' / GRAY IMAGE WITH ALPHA CHANNEL",
- "COMMENT Image type within GIMP: GIMP_RGB_IMAGE",
- "COMMENT Sequence for NAXIS3 : RED, GREEN, BLUE",
- "CTYPE3 = 'RGB ' / RGB IMAGE",
- "COMMENT Image type within GIMP: GIMP_RGBA_IMAGE (rgb with alpha channel)",
- "COMMENT Sequence for NAXIS3 : RED, GREEN, BLUE, ALPHA",
- "CTYPE3 = 'RGBA ' / RGB IMAGE WITH ALPHA CHANNEL"
- };
-
- hdulist = fits_add_hdu (ofp);
- if (hdulist == NULL) return (NULL);
-
- hdulist->used.simple = 1;
- hdulist->bitpix = 8;
- hdulist->naxis = (bpp == 1) ? 2 : 3;
- hdulist->naxisn[0] = width;
- hdulist->naxisn[1] = height;
- hdulist->naxisn[2] = bpp;
- hdulist->used.datamin = 1;
- hdulist->datamin = 0.0;
- hdulist->used.datamax = 1;
- hdulist->datamax = 255.0;
- hdulist->used.bzero = 1;
- hdulist->bzero = 0.0;
- hdulist->used.bscale = 1;
- hdulist->bscale = 1.0;
-
- fits_add_card (hdulist, "");
- fits_add_card (hdulist,
- "HISTORY THIS FITS FILE WAS GENERATED BY GIMP USING FITSRW");
- fits_add_card (hdulist, "");
- fits_add_card (hdulist,
- "COMMENT FitsRW is (C) Peter Kirchgessner (peter@kirchgessner.net), but available");
- fits_add_card (hdulist,
- "COMMENT under the GNU general public licence."),
- fits_add_card (hdulist,
- "COMMENT For sources see http://www.kirchgessner.net");
- fits_add_card (hdulist, "");
- fits_add_card (hdulist, ctype3_card[bpp*3]);
- if (ctype3_card[bpp*3+1] != NULL)
- fits_add_card (hdulist, ctype3_card[bpp*3+1]);
- if (print_ctype3 && (ctype3_card[bpp*3+2] != NULL))
- fits_add_card (hdulist, ctype3_card[bpp*3+2]);
- fits_add_card (hdulist, "");
-
- return (hdulist);
- }
-
-
- /* Save direct colours (GRAY, GRAYA, RGB, RGBA) */
- static gint
- save_direct (FITS_FILE *ofp,
- gint32 image_ID,
- gint32 drawable_ID)
- {
- int height, width, i, j, channel;
- int tile_height, bpp, bpsl;
- long nbytes;
- guchar *data, *src;
- GimpPixelRgn pixel_rgn;
- GimpDrawable *drawable;
- GimpImageType drawable_type;
- FITS_HDU_LIST *hdu;
-
- drawable = gimp_drawable_get (drawable_ID);
- drawable_type = gimp_drawable_type (drawable_ID);
- width = drawable->width;
- height = drawable->height;
- bpp = drawable->bpp; /* Bytes per pixel */
- bpsl = width * bpp; /* Bytes per scanline */
- tile_height = gimp_tile_height ();
- gimp_pixel_rgn_init (&pixel_rgn, drawable, 0, 0, width, height, FALSE, FALSE);
-
- /* allocate a buffer for retrieving information from the pixel region */
- src = data = (unsigned char *)g_malloc (width * height * bpp);
-
- hdu = create_fits_header (ofp, width, height, bpp);
- if (hdu == NULL) return (FALSE);
- if (fits_write_header (ofp, hdu) < 0) return (FALSE);
-
- #define GET_DIRECT_TILE(begin) \
- {int scan_lines; \
- scan_lines = (i+tile_height-1 < height) ? tile_height : (height-i); \
- gimp_pixel_rgn_get_rect (&pixel_rgn, begin, 0, height-i-scan_lines, \
- width, scan_lines); \
- src = begin+bpsl*(scan_lines-1)+channel; }
-
- nbytes = 0;
- for (channel = 0; channel < bpp; channel++)
- {
- for (i = 0; i < height; i++)
- {
- if ((i % tile_height) == 0) GET_DIRECT_TILE (data); /* get more data */
-
- if (bpp == 1) /* One channel only ? Write the scanline */
- {
- fwrite (src, 1, width, ofp->fp);
- src += bpsl;
- }
- else /* Multiple channels */
- {
- for (j = 0; j < width; j++) /* Write out bytes for current channel */
- {
- putc (*src, ofp->fp);
- src += bpp;
- }
- }
- nbytes += bpsl;
- src -= 2*bpsl;
-
- if ((l_run_mode != GIMP_RUN_NONINTERACTIVE) && ((i % 20) == 0))
- gimp_progress_update ((double)(i+channel*height)/(double)(height*bpp));
- }
- }
-
- nbytes = nbytes % FITS_RECORD_SIZE;
- if (nbytes)
- {
- while (nbytes++ < FITS_RECORD_SIZE)
- putc (0, ofp->fp);
- }
-
- g_free (data);
-
- gimp_drawable_detach (drawable);
-
- if (ferror (ofp->fp))
- {
- g_message (_("Write error occured"));
- return (FALSE);
- }
- return (TRUE);
- #undef GET_DIRECT_TILE
- }
-
-
- /* Save indexed colours (INDEXED, INDEXEDA) */
- static gint
- save_index (FITS_FILE *ofp,
- gint32 image_ID,
- gint32 drawable_ID)
- {
- int height, width, i, j, channel;
- int tile_height, bpp, bpsl, ncols;
- long nbytes;
- guchar *data, *src, *cmap, *cmapptr;
- guchar red[256], green[256], blue[256];
- guchar *channels[3];
- GimpPixelRgn pixel_rgn;
- GimpDrawable *drawable;
- GimpImageType drawable_type;
- FITS_HDU_LIST *hdu;
-
- channels[0] = red; channels[1] = green; channels[2] = blue;
-
- drawable = gimp_drawable_get (drawable_ID);
- drawable_type = gimp_drawable_type (drawable_ID);
- width = drawable->width;
- height = drawable->height;
- bpp = drawable->bpp; /* Bytes per pixel */
- bpsl = width * bpp; /* Bytes per scanline */
- tile_height = gimp_tile_height ();
- gimp_pixel_rgn_init (&pixel_rgn, drawable, 0, 0, width, height, FALSE, FALSE);
-
- /* allocate a buffer for retrieving information from the pixel region */
- src = data = (guchar *)g_malloc (width * height * bpp);
-
- cmapptr = cmap = gimp_image_get_cmap (image_ID, &ncols);
- if (ncols > sizeof (red)) ncols = sizeof (red);
- for (i = 0; i < ncols; i++)
- {
- red[i] = *(cmapptr++);
- green[i] = *(cmapptr++);
- blue[i] = *(cmapptr++);
- }
- for (i = ncols; i < sizeof (red); i++)
- red[i] = green[i] = blue[i] = 0;
-
- hdu = create_fits_header (ofp, width, height, bpp+2);
- if (hdu == NULL) return (FALSE);
- if (fits_write_header (ofp, hdu) < 0) return (FALSE);
-
- #define GET_INDEXED_TILE(begin) \
- {int scan_lines; \
- scan_lines = (i+tile_height-1 < height) ? tile_height : (height-i); \
- gimp_pixel_rgn_get_rect (&pixel_rgn, begin, 0, height-i-scan_lines, \
- width, scan_lines); \
- src = begin+bpsl*(scan_lines-1); }
-
- nbytes = 0;
-
- /* Write the RGB-channels */
- for (channel = 0; channel < 3; channel++)
- {
- cmapptr = channels[channel];
- for (i = 0; i < height; i++)
- {
- if ((i % tile_height) == 0)
- GET_INDEXED_TILE (data); /* get more data */
-
- for (j = 0; j < width; j++) /* Write out bytes for current channel */
- {
- putc (cmapptr[*src], ofp->fp);
- src += bpp;
- }
- nbytes += width;
- src -= 2*bpsl;
- }
-
- if ((l_run_mode != GIMP_RUN_NONINTERACTIVE) && ((i % 20) == 0))
- gimp_progress_update ((double) (i+channel*height) /
- (double) (height*(bpp+2)));
- }
-
- /* Write the Alpha-channel */
- if (bpp > 1)
- {
- for (i = 0; i < height; i++)
- {
- if ((i % tile_height) == 0)
- {
- GET_INDEXED_TILE (data); /* get more data */
- src++; /* Step to alpha channel data */
- }
-
- for (j = 0; j < width; j++) /* Write out bytes for alpha channel */
- {
- putc (*src, ofp->fp);
- src += bpp;
- }
- nbytes += width;
- src -= 2*bpsl;
- }
-
- if ((l_run_mode != GIMP_RUN_NONINTERACTIVE) && ((i % 20) == 0))
- gimp_progress_update ((double) (i+channel*height) /
- (double) (height*(bpp+2)));
- }
-
- nbytes = nbytes % FITS_RECORD_SIZE;
- if (nbytes)
- {
- while (nbytes++ < FITS_RECORD_SIZE)
- putc (0, ofp->fp);
- }
-
- g_free (data);
-
- gimp_drawable_detach (drawable);
-
- if (ferror (ofp->fp))
- {
- g_message (_("Write error occured"));
- return (FALSE);
- }
- return (TRUE);
- #undef GET_INDEXED_TILE
- }
-
- /* Load interface functions */
-
- static gint
- load_dialog (void)
- {
- GtkWidget *dialog;
- GtkWidget *vbox;
- GtkWidget *frame;
-
- gimp_ui_init ("fits", FALSE);
-
- dialog = gimp_dialog_new (_("Load FITS File"), "fits",
- gimp_standard_help_func, "filters/fits.html",
- GTK_WIN_POS_MOUSE,
- FALSE, FALSE, FALSE,
-
- _("OK"), load_ok_callback,
- NULL, NULL, NULL, TRUE, FALSE,
- _("Cancel"), gtk_widget_destroy,
- NULL, 1, NULL, FALSE, TRUE,
-
- NULL);
-
- gtk_signal_connect (GTK_OBJECT (dialog), "destroy",
- GTK_SIGNAL_FUNC (gtk_main_quit),
- NULL);
-
- vbox = gtk_vbox_new (FALSE, 4);
- gtk_container_set_border_width (GTK_CONTAINER (vbox), 6);
- gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog)->vbox), vbox,
- TRUE, TRUE, 0);
- gtk_widget_show (vbox);
-
- frame = gimp_radio_group_new2 (TRUE, _("BLANK/NaN Pixel Replacement"),
- gimp_radio_button_update,
- &plvals.replace, (gpointer) plvals.replace,
-
- _("Black"), (gpointer) 0, NULL,
- _("White"), (gpointer) 255, NULL,
-
- NULL);
- gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
- gtk_widget_show (frame);
-
- frame =
- gimp_radio_group_new2 (TRUE, _("Pixel Value Scaling"),
- gimp_radio_button_update,
- &plvals.use_datamin, (gpointer) plvals.use_datamin,
-
- _("Automatic"), (gpointer) FALSE, NULL,
- _("By DATAMIN/DATAMAX"), (gpointer) TRUE, NULL,
-
- NULL);
- gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
- gtk_widget_show (frame);
-
- frame =
- gimp_radio_group_new2 (TRUE, _("Image Composing"),
- gimp_radio_button_update,
- &plvals.compose, (gpointer) plvals.compose,
-
- _("None"), (gpointer) FALSE, NULL,
- "NAXIS=3, NAXIS3=2,...,4", (gpointer) TRUE, NULL,
-
- NULL);
- gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
- gtk_widget_show (frame);
-
- gtk_widget_show (dialog);
-
- gtk_main ();
- gdk_flush ();
-
- return plint.run;
- }
-
- static void
- load_ok_callback (GtkWidget *widget,
- gpointer data)
-
- {
- plint.run = TRUE;
-
- gtk_widget_destroy (GTK_WIDGET (data));
- }
-
- static void
- show_fits_errors (void)
- {
- gchar *msg;
-
- /* Write out error messages of FITS-Library */
- while ((msg = fits_get_error ()) != NULL)
- g_message (msg);
- }
-