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- /*
- * This is a plug-in for the GIMP.
- *
- * Copyright (C) 1995 Spencer Kimball and Peter Mattis
- * Copyright (C) 1996 Torsten Martinsen
- *
- * 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.
- *
- * $Id: oilify.c,v 1.24 2000/08/22 01:26:55 neo Exp $
- */
-
- #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 "libgimp/stdplugins-intl.h"
-
-
- #define SCALE_WIDTH 125
- #define HISTSIZE 256
-
- #define MODE_RGB 0
- #define MODE_INTEN 1
-
- #undef INTENSITY
- #define INTENSITY(p) ((guint) (p[0]*77+p[1]*150+p[2]*29) >> 8)
-
- typedef struct
- {
- gdouble mask_size;
- gint mode;
- } OilifyVals;
-
- typedef struct
- {
- gint run;
- } OilifyInterface;
-
- /* Declare local functions.
- */
- static void query (void);
- static void run (gchar *name,
- gint nparams,
- GimpParam *param,
- gint *nreturn_vals,
- GimpParam **return_vals);
-
- static void oilify_rgb (GimpDrawable *drawable);
- static void oilify_intensity (GimpDrawable *drawable);
-
- static gint oilify_dialog (void);
-
- static void oilify_ok_callback (GtkWidget *widget,
- gpointer data);
-
- GimpPlugInInfo PLUG_IN_INFO =
- {
- NULL, /* init_proc */
- NULL, /* quit_proc */
- query, /* query_proc */
- run, /* run_proc */
- };
-
- static OilifyVals ovals =
- {
- 7.0, /* mask size */
- 0 /* mode */
- };
-
- static OilifyInterface oint =
- {
- FALSE /* run */
- };
-
-
- MAIN ()
-
- static void
- query (void)
- {
- static GimpParamDef args[] =
- {
- { GIMP_PDB_INT32, "run_mode", "Interactive, non-interactive" },
- { GIMP_PDB_IMAGE, "image", "Input image (unused)" },
- { GIMP_PDB_DRAWABLE, "drawable", "Input drawable" },
- { GIMP_PDB_INT32, "mask_size", "Oil paint mask size" },
- { GIMP_PDB_INT32, "mode", "Algorithm {RGB (0), INTENSITY (1)}" }
- };
- static gint nargs = sizeof (args) / sizeof (args[0]);
-
- gimp_install_procedure ("plug_in_oilify",
- "Modify the specified drawable to resemble an oil "
- "painting",
- "This function performs the well-known oil-paint "
- "effect on the specified drawable. The size of the "
- "input mask is specified by 'mask_size'.",
- "Torsten Martinsen",
- "Torsten Martinsen",
- "1996",
- N_("<Image>/Filters/Artistic/Oilify..."),
- "RGB*, GRAY*",
- GIMP_PLUGIN,
- nargs, 0,
- args, NULL);
- }
-
- static void
- run (gchar *name,
- gint nparams,
- GimpParam *param,
- gint *nreturn_vals,
- GimpParam **return_vals)
- {
- static GimpParam values[1];
- GimpDrawable *drawable;
- GimpRunModeType run_mode;
- GimpPDBStatusType status = GIMP_PDB_SUCCESS;
-
- INIT_I18N_UI();
-
- run_mode = param[0].data.d_int32;
-
- *nreturn_vals = 2;
- *return_vals = values;
-
- values[0].type = GIMP_PDB_STATUS;
- values[0].data.d_status = status;
-
- switch (run_mode)
- {
- case GIMP_RUN_INTERACTIVE:
- /* Possibly retrieve data */
- gimp_get_data ("plug_in_oilify", &ovals);
-
- /* First acquire information with a dialog */
- if (! oilify_dialog ())
- return;
- break;
-
- case GIMP_RUN_NONINTERACTIVE:
- /* Make sure all the arguments are there! */
- if (nparams != 5)
- {
- status = GIMP_PDB_CALLING_ERROR;
- }
- else
- {
- ovals.mask_size = (gdouble) param[3].data.d_int32;
- ovals.mode = (gint) param[4].data.d_int32;
-
- if ((ovals.mask_size < 1.0) ||
- ((ovals.mode != MODE_INTEN) &&
- (ovals.mode != MODE_RGB)))
- status = GIMP_PDB_CALLING_ERROR;
- }
- break;
-
- case GIMP_RUN_WITH_LAST_VALS:
- /* Possibly retrieve data */
- gimp_get_data ("plug_in_oilify", &ovals);
- break;
-
- default:
- break;
- }
-
- /* Get the specified drawable */
- drawable = gimp_drawable_get (param[2].data.d_drawable);
-
- /* Make sure that the drawable is gray or RGB color */
- if ((status == GIMP_PDB_SUCCESS) &&
- (gimp_drawable_is_rgb (drawable->id) ||
- gimp_drawable_is_gray (drawable->id)))
- {
- gimp_progress_init (_("Oil Painting..."));
- gimp_tile_cache_ntiles (2 * (drawable->width / gimp_tile_width () + 1));
-
- if (gimp_drawable_is_rgb (drawable->id) && (ovals.mode == MODE_INTEN))
- oilify_intensity (drawable);
- else
- oilify_rgb (drawable);
-
- if (run_mode != GIMP_RUN_NONINTERACTIVE)
- gimp_displays_flush ();
-
- /* Store data */
- if (run_mode == GIMP_RUN_INTERACTIVE)
- gimp_set_data ("plug_in_oilify", &ovals, sizeof (OilifyVals));
- }
- else
- {
- /* gimp_message ("oilify: cannot operate on indexed color images"); */
- status = GIMP_PDB_EXECUTION_ERROR;
- }
-
- values[0].data.d_status = status;
-
- gimp_drawable_detach (drawable);
- }
-
- /*
- * For each RGB channel, replace the pixel at (x,y) with the
- * value that occurs most often in the n x n chunk centered
- * at (x,y).
- */
- static void
- oilify_rgb (GimpDrawable *drawable)
- {
- GimpPixelRgn src_rgn, dest_rgn;
- gint bytes;
- gint width, height;
- guchar *src_row, *src;
- guchar *dest_row, *dest;
- gint x, y, c, b, xx, yy, n;
- gint x1, y1, x2, y2;
- gint x3, y3, x4, y4;
- gint Val[4];
- gint Cnt[4];
- gint Hist[4][HISTSIZE];
- gpointer pr1, pr2;
- gint progress, max_progress;
- gint *tmp1, *tmp2;
- guchar *guc_tmp1;
-
- /* get the selection bounds */
- gimp_drawable_mask_bounds (drawable->id, &x1, &y1, &x2, &y2);
- progress = 0;
- max_progress = (x2 - x1) * (y2 - y1);
-
- width = drawable->width;
- height = drawable->height;
- bytes = drawable->bpp;
-
- n = (int) ovals.mask_size / 2;
-
- gimp_pixel_rgn_init (&dest_rgn, drawable,
- x1, y1, (x2 - x1), (y2 - y1), TRUE, TRUE);
-
- for (pr1 = gimp_pixel_rgns_register (1, &dest_rgn);
- pr1 != NULL;
- pr1 = gimp_pixel_rgns_process (pr1))
- {
- dest_row = dest_rgn.data;
-
- for (y = dest_rgn.y; y < (dest_rgn.y + dest_rgn.h); y++)
- {
- dest = dest_row;
-
- for (x = dest_rgn.x; x < (dest_rgn.x + dest_rgn.w); x++)
- {
- memset(Cnt, 0, sizeof(Cnt));
- memset(Val, 0, sizeof(Val));
- memset(Hist, 0, sizeof(Hist));
-
- x3 = CLAMP ((x - n), x1, x2);
- y3 = CLAMP ((y - n), y1, y2);
- x4 = CLAMP ((x + n + 1), x1, x2);
- y4 = CLAMP ((y + n + 1), y1, y2);
-
- gimp_pixel_rgn_init (&src_rgn, drawable,
- x3, y3, (x4 - x3), (y4 - y3), FALSE, FALSE);
-
- for (pr2 = gimp_pixel_rgns_register (1, &src_rgn);
- pr2 != NULL;
- pr2 = gimp_pixel_rgns_process (pr2))
- {
- src_row = src_rgn.data;
-
- for (yy = 0; yy < src_rgn.h; yy++)
- {
- src = src_row;
-
- for (xx = 0; xx < src_rgn.w; xx++)
- {
- for (b = 0,
- tmp1 = Val,
- tmp2 = Cnt,
- guc_tmp1 = src;
- b < bytes;
- b++, tmp1++, tmp2++, guc_tmp1++)
- {
- if ((c = ++Hist[b][*guc_tmp1]) > *tmp2)
- {
- *tmp1 = *guc_tmp1;
- *tmp2 = c;
- }
- }
-
- src += src_rgn.bpp;
- }
-
- src_row += src_rgn.rowstride;
- }
- }
-
- for (b = 0, tmp1 = Val; b < bytes; b++)
- *dest++ = *tmp1++;
- }
-
- dest_row += dest_rgn.rowstride;
- }
-
- progress += dest_rgn.w * dest_rgn.h;
- gimp_progress_update ((double) progress / (double) max_progress);
- }
-
- /* update the oil-painted region */
- gimp_drawable_flush (drawable);
- gimp_drawable_merge_shadow (drawable->id, TRUE);
- gimp_drawable_update (drawable->id, x1, y1, (x2 - x1), (y2 - y1));
- }
-
- /*
- * For each RGB channel, replace the pixel at (x,y) with the
- * value that occurs most often in the n x n chunk centered
- * at (x,y). Histogram is based on intensity.
- */
- static void
- oilify_intensity (GimpDrawable *drawable)
- {
- GimpPixelRgn src_rgn, dest_rgn;
- gint bytes;
- gint width, height;
- guchar *src_row, *src;
- guchar *dest_row, *dest;
- gint x, y, c, b, xx, yy, n;
- gint x1, y1, x2, y2;
- gint x3, y3, x4, y4;
- gint Val[4];
- gint Cnt;
- gint Hist[HISTSIZE];
- gpointer pr1, pr2;
- gint progress, max_progress;
- gint *tmp1;
- guchar *guc_tmp1;
-
- /* get the selection bounds */
- gimp_drawable_mask_bounds (drawable->id, &x1, &y1, &x2, &y2);
- progress = 0;
- max_progress = (x2 - x1) * (y2 - y1);
-
- width = drawable->width;
- height = drawable->height;
- bytes = drawable->bpp;
-
- n = (int) ovals.mask_size / 2;
-
- gimp_pixel_rgn_init (&dest_rgn, drawable,
- x1, y1, (x2 - x1), (y2 - y1), TRUE, TRUE);
-
- for (pr1 = gimp_pixel_rgns_register (1, &dest_rgn);
- pr1 != NULL;
- pr1 = gimp_pixel_rgns_process (pr1))
- {
- dest_row = dest_rgn.data;
-
- for (y = dest_rgn.y; y < (dest_rgn.y + dest_rgn.h); y++)
- {
- dest = dest_row;
-
- for (x = dest_rgn.x; x < (dest_rgn.x + dest_rgn.w); x++)
- {
- Cnt = 0;
- memset(Val, 0, sizeof(Val));
- memset(Hist, 0, sizeof(Hist));
-
- x3 = CLAMP ((x - n), x1, x2);
- y3 = CLAMP ((y - n), y1, y2);
- x4 = CLAMP ((x + n + 1), x1, x2);
- y4 = CLAMP ((y + n + 1), y1, y2);
-
- gimp_pixel_rgn_init (&src_rgn, drawable,
- x3, y3, (x4 - x3), (y4 - y3), FALSE, FALSE);
-
- for (pr2 = gimp_pixel_rgns_register (1, &src_rgn);
- pr2 != NULL;
- pr2 = gimp_pixel_rgns_process (pr2))
- {
- src_row = src_rgn.data;
-
- for (yy = 0; yy < src_rgn.h; yy++)
- {
- src = src_row;
-
- for (xx = 0; xx < src_rgn.w; xx++)
- {
- if ((c = ++Hist[INTENSITY(src)]) > Cnt)
- {
- Cnt = c;
- for (b = 0,
- tmp1 = Val,
- guc_tmp1 = src;
- b < bytes;
- b++, tmp1++, guc_tmp1++)
- *tmp1 = *guc_tmp1;
- }
-
- src += src_rgn.bpp;
- }
-
- src_row += src_rgn.rowstride;
- }
- }
-
- for (b = 0, tmp1 = Val; b < bytes; b++)
- *dest++ = *tmp1++;
- }
-
- dest_row += dest_rgn.rowstride;
- }
-
- progress += dest_rgn.w * dest_rgn.h;
- if ((progress % 5) == 0)
- gimp_progress_update ((double) progress / (double) max_progress);
- }
-
- /* update the oil-painted region */
- gimp_drawable_flush (drawable);
- gimp_drawable_merge_shadow (drawable->id, TRUE);
- gimp_drawable_update (drawable->id, x1, y1, (x2 - x1), (y2 - y1));
- }
-
- static gint
- oilify_dialog (void)
- {
- GtkWidget *dlg;
- GtkWidget *frame;
- GtkWidget *table;
- GtkWidget *toggle;
- GtkObject *adj;
-
- gimp_ui_init ("oilify", FALSE);
-
- dlg = gimp_dialog_new (_("Oilify"), "oilify",
- gimp_standard_help_func, "filters/oilify.html",
- GTK_WIN_POS_MOUSE,
- FALSE, TRUE, FALSE,
-
- _("OK"), oilify_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);
-
- /* parameter settings */
- frame = gtk_frame_new (_("Parameter Settings"));
- gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
- gtk_container_set_border_width (GTK_CONTAINER (frame), 6);
- gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->vbox), frame, TRUE, TRUE, 0);
-
- table = gtk_table_new (2, 3, FALSE);
- gtk_table_set_col_spacings (GTK_TABLE (table), 4);
- gtk_table_set_row_spacings (GTK_TABLE (table), 4);
- gtk_container_set_border_width (GTK_CONTAINER (table), 4);
- gtk_container_add (GTK_CONTAINER (frame), table);
-
- toggle = gtk_check_button_new_with_label (_("Use Intensity Algorithm"));
- gtk_table_attach (GTK_TABLE (table), toggle, 0, 3, 0, 1, GTK_FILL, 0, 0, 0);
- gtk_signal_connect (GTK_OBJECT (toggle), "toggled",
- GTK_SIGNAL_FUNC (gimp_toggle_button_update),
- &ovals.mode);
- gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), ovals.mode);
- gtk_widget_show (toggle);
-
- adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 1,
- _("Mask Size:"), SCALE_WIDTH, 0,
- ovals.mask_size, 3.0, 50.0, 1.0, 5.0, 0,
- TRUE, 0, 0,
- NULL, NULL);
- gtk_signal_connect (GTK_OBJECT (adj), "value_changed",
- GTK_SIGNAL_FUNC (gimp_double_adjustment_update),
- &ovals.mask_size);
-
- gtk_widget_show (frame);
- gtk_widget_show (table);
- gtk_widget_show (dlg);
-
- gtk_main ();
- gdk_flush ();
-
- return oint.run;
- }
-
- static void
- oilify_ok_callback (GtkWidget *widget,
- gpointer data)
- {
- oint.run = TRUE;
-
- gtk_widget_destroy (GTK_WIDGET (data));
- }
-