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- /*
- * "$Id: sgi.c,v 1.26 2000/08/24 14:17:34 neo Exp $"
- *
- * SGI image file plug-in for the GIMP.
- *
- * Copyright 1997-1998 Michael Sweet (mike@easysw.com)
- *
- * 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.
- *
- * Contents:
- *
- * main() - Main entry - just call gimp_main()...
- * query() - Respond to a plug-in query...
- * run() - Run the plug-in...
- * load_image() - Load a PNG image into a new image window.
- * save_image() - Save the specified image to a PNG file.
- * save_ok_callback() - Destroy the save dialog and save the image.
- * save_dialog() - Pop up the save dialog.
- *
- */
-
- #include "config.h"
-
- #include <stdio.h>
- #include <stdlib.h>
- #include <signal.h>
-
- #include <gtk/gtk.h>
-
- #include <libgimp/gimp.h>
- #include <libgimp/gimpui.h>
-
- #include "libgimp/stdplugins-intl.h"
-
- #include "sgi.h" /* SGI image library definitions */
-
-
-
- /*
- * Constants...
- */
-
- #define PLUG_IN_VERSION "1.1.1 - 17 May 1998"
-
-
- /*
- * 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 gint save_dialog (void);
-
- /*
- * Globals...
- */
-
- GimpPlugInInfo PLUG_IN_INFO =
- {
- NULL, /* init_proc */
- NULL, /* quit_proc */
- query, /* query_proc */
- run, /* run_proc */
- };
-
- static gint compression = SGI_COMP_RLE;
- static gint runme = FALSE;
-
-
- 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" },
- { GIMP_PDB_INT32, "compression", "Compression level (0 = none, 1 = RLE, 2 = ARLE)" }
- };
- static gint nsave_args = sizeof (save_args) / sizeof (save_args[0]);
-
- INIT_I18N();
-
- gimp_install_procedure ("file_sgi_load",
- "Loads files in SGI image file format",
- "This plug-in loads SGI image files.",
- "Michael Sweet <mike@easysw.com>",
- "Copyright 1997-1998 by Michael Sweet",
- PLUG_IN_VERSION,
- "<Load>/SGI",
- NULL,
- GIMP_PLUGIN,
- nload_args,
- nload_return_vals,
- load_args,
- load_return_vals);
-
- gimp_install_procedure ("file_sgi_save",
- "Saves files in SGI image file format",
- "This plug-in saves SGI image files.",
- "Michael Sweet <mike@easysw.com>",
- "Copyright 1997-1998 by Michael Sweet",
- PLUG_IN_VERSION,
- "<Save>/SGI",
- "RGB*,GRAY*",
- GIMP_PLUGIN,
- nsave_args,
- 0,
- save_args,
- NULL);
-
- gimp_register_magic_load_handler ("file_sgi_load",
- "rgb,bw,sgi,icon",
- "",
- "0,short,474");
- gimp_register_save_handler ("file_sgi_save",
- "rgb,bw,sgi,icon",
- "");
- }
-
- 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;
-
- 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;
-
- INIT_I18N_UI();
-
- if (strcmp (name, "file_sgi_load") == 0)
- {
- image_ID = load_image (param[1].data.d_string);
-
- 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;
- }
- }
- else if (strcmp (name, "file_sgi_save") == 0)
- {
- 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 ("sgi", FALSE);
- export = gimp_export_image (&image_ID, &drawable_ID, "SGI",
- (GIMP_EXPORT_CAN_HANDLE_RGB |
- GIMP_EXPORT_CAN_HANDLE_GRAY |
- GIMP_EXPORT_CAN_HANDLE_ALPHA ));
- if (export == GIMP_EXPORT_CANCEL)
- {
- values[0].data.d_status = GIMP_PDB_CANCEL;
- return;
- }
- break;
- default:
- break;
- }
-
- switch (run_mode)
- {
- case GIMP_RUN_INTERACTIVE:
- /*
- * Possibly retrieve data...
- */
- gimp_get_data ("file_sgi_save", &compression);
-
- /*
- * Then acquire information with a dialog...
- */
- if (!save_dialog ())
- status = GIMP_PDB_CANCEL;
- break;
-
- case GIMP_RUN_NONINTERACTIVE:
- /*
- * Make sure all the arguments are there!
- */
- if (nparams != 6)
- {
- status = GIMP_PDB_CALLING_ERROR;
- }
- else
- {
- compression = param[5].data.d_int32;
-
- if (compression < 0 || compression > 2)
- status = GIMP_PDB_CALLING_ERROR;
- };
- break;
-
- case GIMP_RUN_WITH_LAST_VALS:
- /*
- * Possibly retrieve data...
- */
- gimp_get_data ("file_sgi_save", &compression);
- break;
-
- default:
- break;
- };
-
- if (status == GIMP_PDB_SUCCESS)
- {
- if (save_image (param[3].data.d_string, image_ID, drawable_ID))
- {
- gimp_set_data ("file_sgi_save",
- &compression, sizeof (compression));
- }
- else
- {
- 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;
- }
-
-
- /*
- * 'load_image()' - Load a PNG image into a new image window.
- */
-
- static gint32
- load_image (gchar *filename) /* I - File to load */
- {
- int i, /* Looping var */
- x, /* Current X coordinate */
- y, /* Current Y coordinate */
- image_type, /* Type of image */
- layer_type, /* Type of drawable/layer */
- tile_height, /* Height of tile in GIMP */
- count; /* Count of rows to put in image */
- sgi_t *sgip; /* File pointer */
- gint32 image, /* Image */
- layer; /* Layer */
- GimpDrawable *drawable; /* Drawable for layer */
- GimpPixelRgn pixel_rgn; /* Pixel region for layer */
- guchar **pixels, /* Pixel rows */
- *pixel, /* Pixel data */
- *pptr; /* Current pixel */
- gushort **rows; /* SGI image data */
- gchar *progress; /* Title for progress display... */
-
-
- /*
- * Open the file for reading...
- */
-
- sgip = sgiOpen(filename, SGI_READ, 0, 0, 0, 0, 0);
- if (sgip == NULL)
- {
- g_message ("can't open image file\n");
- return -1;
- };
-
- if (strrchr(filename, '/') != NULL)
- progress = g_strdup_printf (_("Loading %s:"), strrchr(filename, '/') + 1);
- else
- progress = g_strdup_printf (_("Loading %s:"), filename);
-
- gimp_progress_init(progress);
- g_free (progress);
-
- /*
- * Get the image dimensions and create the image...
- */
- image_type = 0; /* shut up warnings */
- layer_type = 0;
- switch (sgip->zsize)
- {
- case 1 : /* Grayscale */
- image_type = GIMP_GRAY;
- layer_type = GIMP_GRAY_IMAGE;
- break;
-
- case 2 : /* Grayscale + alpha */
- image_type = GIMP_GRAY;
- layer_type = GIMP_GRAYA_IMAGE;
- break;
-
- case 3 : /* RGB */
- image_type = GIMP_RGB;
- layer_type = GIMP_RGB_IMAGE;
- break;
-
- case 4 : /* RGBA */
- image_type = GIMP_RGB;
- layer_type = GIMP_RGBA_IMAGE;
- break;
- }
-
- image = gimp_image_new(sgip->xsize, sgip->ysize, image_type);
- if (image == -1)
- {
- g_message ("can't allocate new image\n");
- return -1;
- }
-
- gimp_image_set_filename(image, filename);
-
- /*
- * Create the "background" layer to hold the image...
- */
-
- layer = gimp_layer_new (image, _("Background"), sgip->xsize, sgip->ysize,
- layer_type, 100, GIMP_NORMAL_MODE);
- gimp_image_add_layer(image, layer, 0);
-
- /*
- * Get the drawable and set the pixel region for our load...
- */
-
- drawable = gimp_drawable_get(layer);
-
- gimp_pixel_rgn_init(&pixel_rgn, drawable, 0, 0, drawable->width,
- drawable->height, TRUE, FALSE);
-
- /*
- * Temporary buffers...
- */
-
- tile_height = gimp_tile_height();
- pixel = g_new(guchar, tile_height * sgip->xsize * sgip->zsize);
- pixels = g_new(guchar *, tile_height);
-
- for (i = 0; i < tile_height; i ++)
- pixels[i] = pixel + sgip->xsize * sgip->zsize * i;
-
- rows = g_new(unsigned short *, sgip->zsize);
- rows[0] = g_new(unsigned short, sgip->xsize * sgip->zsize);
-
- for (i = 1; i < sgip->zsize; i ++)
- rows[i] = rows[0] + i * sgip->xsize;
-
- /*
- * Load the image...
- */
-
- for (y = 0, count = 0;
- y < sgip->ysize;
- y ++, count ++)
- {
- if (count >= tile_height)
- {
- gimp_pixel_rgn_set_rect (&pixel_rgn, pixel,
- 0, y - count, drawable->width, count);
- count = 0;
-
- gimp_progress_update((double)y / (double)sgip->ysize);
- }
-
- for (i = 0; i < sgip->zsize; i ++)
- if (sgiGetRow(sgip, rows[i], sgip->ysize - 1 - y, i) < 0)
- printf("sgiGetRow(sgip, rows[i], %d, %d) failed!\n",
- sgip->ysize - 1 - y, i);
-
- if (sgip->bpp == 1)
- {
- /*
- * 8-bit (unsigned) pixels...
- */
-
- for (x = 0, pptr = pixels[count]; x < sgip->xsize; x ++)
- for (i = 0; i < sgip->zsize; i ++, pptr ++)
- *pptr = rows[i][x];
- }
- else
- {
- /*
- * 16-bit (unsigned) pixels...
- */
-
- for (x = 0, pptr = pixels[count]; x < sgip->xsize; x ++)
- for (i = 0; i < sgip->zsize; i ++, pptr ++)
- *pptr = rows[i][x] >> 8;
- }
- }
-
- /*
- * Do the last n rows (count always > 0)
- */
-
- gimp_pixel_rgn_set_rect (&pixel_rgn, pixel, 0,
- y - count, drawable->width, count);
-
- /*
- * Done with the file...
- */
-
- sgiClose (sgip);
-
- g_free (pixel);
- g_free (pixels);
- g_free (rows[0]);
- g_free (rows);
-
- /*
- * Update the display...
- */
-
- gimp_drawable_flush (drawable);
- gimp_drawable_detach (drawable);
-
- return (image);
- }
-
-
- /*
- * 'save_image()' - Save the specified image to a SGI file.
- */
-
- static gint
- save_image (gchar *filename,
- gint32 image_ID,
- gint32 drawable_ID)
- {
- gint i, j, /* Looping var */
- x, /* Current X coordinate */
- y, /* Current Y coordinate */
- tile_height, /* Height of tile in GIMP */
- count, /* Count of rows to put in image */
- zsize; /* Number of channels in file */
- sgi_t *sgip; /* File pointer */
- GimpDrawable *drawable; /* Drawable for layer */
- GimpPixelRgn pixel_rgn; /* Pixel region for layer */
- guchar **pixels, /* Pixel rows */
- *pixel, /* Pixel data */
- *pptr; /* Current pixel */
- gushort **rows; /* SGI image data */
- gchar *progress; /* Title for progress display... */
-
- /*
- * Get the drawable for the current image...
- */
-
- drawable = gimp_drawable_get (drawable_ID);
-
- gimp_pixel_rgn_init (&pixel_rgn, drawable, 0, 0, drawable->width,
- drawable->height, FALSE, FALSE);
-
- zsize = 0;
- switch (gimp_drawable_type(drawable_ID))
- {
- case GIMP_GRAY_IMAGE :
- zsize = 1;
- break;
- case GIMP_GRAYA_IMAGE :
- zsize = 2;
- break;
- case GIMP_RGB_IMAGE :
- zsize = 3;
- break;
- case GIMP_RGBA_IMAGE :
- zsize = 4;
- break;
- default:
- g_message ("SGI: Image must be of type RGB or GRAY\n");
- return FALSE;
- break;
- }
-
- /*
- * Open the file for writing...
- */
-
- sgip = sgiOpen (filename, SGI_WRITE, compression, 1, drawable->width,
- drawable->height, zsize);
- if (sgip == NULL)
- {
- g_message ("SGI: Can't create image file\n");
- return FALSE;
- };
-
- if (strrchr(filename, '/') != NULL)
- progress = g_strdup_printf (_("Saving %s:"), strrchr(filename, '/') + 1);
- else
- progress = g_strdup_printf (_("Saving %s:"), filename);
-
- gimp_progress_init(progress);
- g_free (progress);
-
- /*
- * Allocate memory for "tile_height" rows...
- */
-
- tile_height = gimp_tile_height();
- pixel = g_new(guchar, tile_height * drawable->width * zsize);
- pixels = g_new(guchar *, tile_height);
-
- for (i = 0; i < tile_height; i ++)
- pixels[i]= pixel + drawable->width * zsize * i;
-
- rows = g_new (gushort *, sgip->zsize);
- rows[0] = g_new (gushort, sgip->xsize * sgip->zsize);
-
- for (i = 1; i < sgip->zsize; i ++)
- rows[i] = rows[0] + i * sgip->xsize;
-
- /*
- * Save the image...
- */
-
- for (y = 0; y < drawable->height; y += count)
- {
- /*
- * Grab more pixel data...
- */
-
- if ((y + tile_height) >= drawable->height)
- count = drawable->height - y;
- else
- count = tile_height;
-
- gimp_pixel_rgn_get_rect (&pixel_rgn, pixel, 0, y, drawable->width, count);
-
- /*
- * Convert to shorts and write each color plane separately...
- */
-
- for (i = 0, pptr = pixels[0]; i < count; i ++)
- {
- for (x = 0; x < drawable->width; x ++)
- for (j = 0; j < zsize; j ++, pptr ++)
- rows[j][x] = *pptr;
-
- for (j = 0; j < zsize; j ++)
- sgiPutRow (sgip, rows[j], drawable->height - 1 - y - i, j);
- };
-
- gimp_progress_update ((double) y / (double) drawable->height);
- };
-
- /*
- * Done with the file...
- */
-
- sgiClose (sgip);
-
- g_free (pixel);
- g_free (pixels);
- g_free (rows[0]);
- g_free (rows);
-
- return TRUE;
- }
-
- static void
- save_ok_callback (GtkWidget *widget,
- gpointer data)
- {
- runme = TRUE;
-
- gtk_widget_destroy (GTK_WIDGET (data));
- }
-
- static gint
- save_dialog (void)
- {
- GtkWidget *dlg;
- GtkWidget *frame;
-
- dlg = gimp_dialog_new (_("Save as SGI"), "sgi",
- gimp_standard_help_func, "filters/sgi.html",
- GTK_WIN_POS_MOUSE,
- FALSE, FALSE, FALSE,
-
- _("OK"), save_ok_callback,
- NULL, NULL, NULL, TRUE, FALSE,
- _("Cancel"), gtk_widget_destroy,
- NULL, 1, NULL, FALSE, TRUE,
-
- NULL);
-
- gtk_signal_connect (GTK_OBJECT (dlg), "destroy",
- GTK_SIGNAL_FUNC (gtk_main_quit),
- NULL);
-
- frame = gimp_radio_group_new2 (TRUE, _("Compression Type"),
- gimp_radio_button_update,
- &compression, (gpointer) compression,
-
- _("No Compression"),
- (gpointer) SGI_COMP_NONE, NULL,
- _("RLE Compression"),
- (gpointer) SGI_COMP_RLE, NULL,
- _("Aggressive RLE\n(Not Supported by SGI)"),
- (gpointer) SGI_COMP_ARLE, NULL,
-
- NULL);
-
- gtk_container_set_border_width (GTK_CONTAINER(frame), 6);
- gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->vbox), frame, TRUE, TRUE, 0);
- gtk_widget_show (frame);
-
- gtk_widget_show (dlg);
-
- gtk_main ();
- gdk_flush ();
-
- return runme;
- }
-