[gimp/goat-invasion: 274/526] app: add GimpOperationShapeburst to calculate the distance map for blend
- From: Michael Natterer <mitch src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gimp/goat-invasion: 274/526] app: add GimpOperationShapeburst to calculate the distance map for blend
- Date: Sun, 22 Apr 2012 13:22:18 +0000 (UTC)
commit e4abdb64c116c8fd9791af81b4e7076de1623edb
Author: Michael Natterer <mitch gimp org>
Date: Tue Mar 27 00:48:20 2012 +0200
app: add GimpOperationShapeburst to calculate the distance map for blend
app/core/gimpdrawable-blend.c | 59 ++++---
app/gegl/Makefile.am | 2 +
app/gegl/gimp-gegl-types.h | 1 +
app/gegl/gimp-gegl.c | 2 +
app/gegl/gimpoperationshapeburst.c | 320 ++++++++++++++++++++++++++++++++++++
app/gegl/gimpoperationshapeburst.h | 55 ++++++
app/paint-funcs/paint-funcs.c | 145 ----------------
app/paint-funcs/paint-funcs.h | 5 -
8 files changed, 413 insertions(+), 176 deletions(-)
---
diff --git a/app/core/gimpdrawable-blend.c b/app/core/gimpdrawable-blend.c
index 6ce922b..7df9837 100644
--- a/app/core/gimpdrawable-blend.c
+++ b/app/core/gimpdrawable-blend.c
@@ -39,6 +39,7 @@
#include "gegl/gimp-gegl-utils.h"
#include "gimp.h"
+#include "gimp-apply-operation.h"
#include "gimpchannel.h"
#include "gimpcontext.h"
#include "gimpdrawable-blend.h"
@@ -573,11 +574,8 @@ gradient_precalc_shapeburst (GimpImage *image,
GimpProgress *progress)
{
GimpChannel *mask;
- TileManager *temp_tiles;
GeglBuffer *temp_buffer;
- PixelRegion tempR;
gfloat max_iteration;
- gfloat *distp;
gint size;
gpointer pr;
@@ -585,7 +583,8 @@ gradient_precalc_shapeburst (GimpImage *image,
distR.tiles = tile_manager_new (PR->w, PR->h, sizeof (gfloat));
/* allocate the selection mask copy */
- temp_tiles = tile_manager_new (PR->w, PR->h, 1);
+ temp_buffer = gimp_gegl_buffer_new (GIMP_GEGL_RECT (0, 0, PR->w, PR->h),
+ babl_format ("Y u8"));
mask = gimp_image_get_mask (image);
@@ -598,9 +597,6 @@ gradient_precalc_shapeburst (GimpImage *image,
gimp_item_mask_intersect (GIMP_ITEM (drawable), &x, &y, &width, &height);
gimp_item_get_offset (GIMP_ITEM (drawable), &off_x, &off_y);
- temp_buffer = gimp_tile_manager_create_buffer (temp_tiles,
- babl_format ("Y u8"));
-
/* copy the mask to the temp mask */
gegl_buffer_copy (gimp_drawable_get_buffer (GIMP_DRAWABLE (mask)),
GIMP_GEGL_RECT (x+off_x, y + off_y, width, height),
@@ -612,37 +608,50 @@ gradient_precalc_shapeburst (GimpImage *image,
/* If the intended drawable has an alpha channel, use that */
if (gimp_drawable_has_alpha (drawable))
{
- temp_buffer = gimp_tile_manager_create_buffer (temp_tiles,
- babl_format ("A u8"));
-
/* extract the aplha into the temp mask */
+ gegl_buffer_set_format (temp_buffer, babl_format ("A u8"));
gegl_buffer_copy (gimp_drawable_get_buffer (drawable),
GIMP_GEGL_RECT (PR->x, PR->y, PR->w, PR->h),
temp_buffer,
- GIMP_GEGL_RECT (0,0,0,0));
+ GIMP_GEGL_RECT (0, 0, 0, 0));
+ gegl_buffer_set_format (temp_buffer, NULL);
}
else
{
GeglColor *white = gegl_color_new ("white");
- temp_buffer = gimp_tile_manager_create_buffer (temp_tiles,
- babl_format ("Y u8"));
-
/* Otherwise, just fill the shapeburst to white */
gegl_buffer_set_color (temp_buffer, NULL, white);
g_object_unref (white);
}
}
- gegl_buffer_flush (temp_buffer);
+ {
+ GeglBuffer *dist_buffer;
+ GeglNode *shapeburst;
+ gdouble max = 0.0;
+
+ dist_buffer = gimp_tile_manager_create_buffer (distR.tiles,
+ babl_format ("Y float"));
+
+ shapeburst = gegl_node_new_child (NULL,
+ "operation", "gimp:shapeburst",
+ NULL);
+
+ gimp_apply_operation (temp_buffer, NULL, NULL,
+ shapeburst,
+ dist_buffer, NULL);
+
+ gegl_node_get (shapeburst, "max-iterations", &max, NULL);
- pixel_region_init (&tempR, temp_tiles, 0, 0, PR->w, PR->h, TRUE);
- pixel_region_init (&distR, distR.tiles, 0, 0, PR->w, PR->h, TRUE);
+ g_object_unref (shapeburst);
- max_iteration = shapeburst_region (&tempR, &distR,
- progress ?
- gimp_progress_update_and_flush : NULL,
- progress);
+ max_iteration = max;
+
+ g_object_unref (dist_buffer);
+ }
+
+ g_object_unref (temp_buffer);
/* normalize the shapeburst with the max iteration */
if (max_iteration > 0)
@@ -653,8 +662,9 @@ gradient_precalc_shapeburst (GimpImage *image,
pr != NULL;
pr = pixel_regions_process (pr))
{
- distp = (gfloat *) distR.data;
- size = distR.w * distR.h;
+ gfloat *distp = (gfloat *) distR.data;
+
+ size = distR.w * distR.h;
while (size--)
*distp++ /= max_iteration;
@@ -662,9 +672,6 @@ gradient_precalc_shapeburst (GimpImage *image,
pixel_region_init (&distR, distR.tiles, 0, 0, PR->w, PR->h, FALSE);
}
-
- g_object_unref (temp_buffer);
- tile_manager_unref (temp_tiles);
}
diff --git a/app/gegl/Makefile.am b/app/gegl/Makefile.am
index a47acaf..665a8e3 100644
--- a/app/gegl/Makefile.am
+++ b/app/gegl/Makefile.am
@@ -62,6 +62,8 @@ libappgegl_a_sources = \
gimpoperationgrow.h \
gimpoperationsetalpha.c \
gimpoperationsetalpha.h \
+ gimpoperationshapeburst.c \
+ gimpoperationshapeburst.h \
gimpoperationshrink.c \
gimpoperationshrink.h \
\
diff --git a/app/gegl/gimp-gegl-types.h b/app/gegl/gimp-gegl-types.h
index 778053b..be6512f 100644
--- a/app/gegl/gimp-gegl-types.h
+++ b/app/gegl/gimp-gegl-types.h
@@ -33,6 +33,7 @@ typedef struct _GimpOperationCageTransform GimpOperationCageTransform;
typedef struct _GimpOperationEqualize GimpOperationEqualize;
typedef struct _GimpOperationGrow GimpOperationGrow;
typedef struct _GimpOperationSetAlpha GimpOperationSetAlpha;
+typedef struct _GimpOperationShapeburst GimpOperationShapeburst;
typedef struct _GimpOperationShrink GimpOperationShrink;
typedef struct _GimpOperationPointFilter GimpOperationPointFilter;
diff --git a/app/gegl/gimp-gegl.c b/app/gegl/gimp-gegl.c
index 1db74e3..ca784fe 100644
--- a/app/gegl/gimp-gegl.c
+++ b/app/gegl/gimp-gegl.c
@@ -38,6 +38,7 @@
#include "gimpoperationequalize.h"
#include "gimpoperationgrow.h"
#include "gimpoperationsetalpha.h"
+#include "gimpoperationshapeburst.h"
#include "gimpoperationshrink.h"
#include "gimpoperationbrightnesscontrast.h"
@@ -128,6 +129,7 @@ gimp_gegl_init (Gimp *gimp)
g_type_class_ref (GIMP_TYPE_OPERATION_EQUALIZE);
g_type_class_ref (GIMP_TYPE_OPERATION_GROW);
g_type_class_ref (GIMP_TYPE_OPERATION_SET_ALPHA);
+ g_type_class_ref (GIMP_TYPE_OPERATION_SHAPEBURST);
g_type_class_ref (GIMP_TYPE_OPERATION_SHRINK);
g_type_class_ref (GIMP_TYPE_OPERATION_BRIGHTNESS_CONTRAST);
diff --git a/app/gegl/gimpoperationshapeburst.c b/app/gegl/gimpoperationshapeburst.c
new file mode 100644
index 0000000..af0dc2f
--- /dev/null
+++ b/app/gegl/gimpoperationshapeburst.c
@@ -0,0 +1,320 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimpoperationshapeburst.c
+ * Copyright (C) 2012 Michael Natterer <mitch gimp org>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <cairo.h>
+#include <gegl.h>
+
+#include "libgimpcolor/gimpcolor.h"
+#include "libgimpmath/gimpmath.h"
+
+#include "gimp-gegl-types.h"
+
+#include "gimp-gegl-utils.h"
+#include "gimpoperationshapeburst.h"
+
+
+enum
+{
+ PROP_0,
+ PROP_MAX_ITERATIONS,
+ PROP_PROGRESS
+};
+
+
+static void gimp_operation_shapeburst_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec);
+static void gimp_operation_shapeburst_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec);
+
+static GeglRectangle
+gimp_operation_shapeburst_get_required_for_output (GeglOperation *self,
+ const gchar *input_pad,
+ const GeglRectangle *roi);
+static GeglRectangle
+ gimp_operation_shapeburst_get_cached_region (GeglOperation *self,
+ const GeglRectangle *roi);
+static void gimp_operation_shapeburst_prepare (GeglOperation *operation);
+static gboolean gimp_operation_shapeburst_process (GeglOperation *operation,
+ GeglBuffer *input,
+ GeglBuffer *output,
+ const GeglRectangle *roi,
+ gint level);
+
+
+G_DEFINE_TYPE (GimpOperationShapeburst, gimp_operation_shapeburst,
+ GEGL_TYPE_OPERATION_FILTER)
+
+#define parent_class gimp_operation_shapeburst_parent_class
+
+
+static void
+gimp_operation_shapeburst_class_init (GimpOperationShapeburstClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+ GeglOperationClass *operation_class = GEGL_OPERATION_CLASS (klass);
+ GeglOperationFilterClass *filter_class = GEGL_OPERATION_FILTER_CLASS (klass);
+
+ object_class->set_property = gimp_operation_shapeburst_set_property;
+ object_class->get_property = gimp_operation_shapeburst_get_property;
+
+ operation_class->name = "gimp:shapeburst";
+ operation_class->categories = "gimp";
+ operation_class->description = "GIMP Shapeburst operation";
+
+ operation_class->prepare = gimp_operation_shapeburst_prepare;
+ operation_class->get_required_for_output = gimp_operation_shapeburst_get_required_for_output;
+ operation_class->get_cached_region = gimp_operation_shapeburst_get_cached_region;
+
+ filter_class->process = gimp_operation_shapeburst_process;
+
+ g_object_class_install_property (object_class, PROP_MAX_ITERATIONS,
+ g_param_spec_double ("max-iterations",
+ "Max Iterations",
+ "Max Iterations",
+ 0.0, G_MAXFLOAT, 0.0,
+ G_PARAM_READWRITE));
+
+ g_object_class_install_property (object_class, PROP_PROGRESS,
+ g_param_spec_double ("progress",
+ "Progress",
+ "Progress indicator, and a bad hack",
+ 0.0, 1.0, 0.0,
+ G_PARAM_READWRITE));
+}
+
+static void
+gimp_operation_shapeburst_init (GimpOperationShapeburst *self)
+{
+}
+
+static void
+gimp_operation_shapeburst_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GimpOperationShapeburst *self = GIMP_OPERATION_SHAPEBURST (object);
+
+ switch (property_id)
+ {
+ case PROP_MAX_ITERATIONS:
+ g_value_set_double (value, self->max_iterations);
+ break;
+
+ case PROP_PROGRESS:
+ g_value_set_double (value, self->progress);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static void
+gimp_operation_shapeburst_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GimpOperationShapeburst *self = GIMP_OPERATION_SHAPEBURST (object);
+
+ switch (property_id)
+ {
+ case PROP_MAX_ITERATIONS:
+ self->max_iterations = g_value_get_double (value);
+ break;
+
+ case PROP_PROGRESS:
+ self->progress = g_value_get_double (value);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static void
+gimp_operation_shapeburst_prepare (GeglOperation *operation)
+{
+ gegl_operation_set_format (operation, "input", babl_format ("Y u8"));
+ gegl_operation_set_format (operation, "output", babl_format ("Y float"));
+}
+
+static GeglRectangle
+gimp_operation_shapeburst_get_required_for_output (GeglOperation *self,
+ const gchar *input_pad,
+ const GeglRectangle *roi)
+{
+ return *gegl_operation_source_get_bounding_box (self, "input");
+}
+
+static GeglRectangle
+gimp_operation_shapeburst_get_cached_region (GeglOperation *self,
+ const GeglRectangle *roi)
+{
+ return *gegl_operation_source_get_bounding_box (self, "input");
+}
+
+static gboolean
+gimp_operation_shapeburst_process (GeglOperation *operation,
+ GeglBuffer *input,
+ GeglBuffer *output,
+ const GeglRectangle *roi,
+ gint level)
+{
+ const Babl *input_format = babl_format ("Y u8");
+ const Babl *output_format = babl_format ("Y float");
+ gfloat max_iterations = 0.0;
+ gfloat *distp_cur;
+ gfloat *distp_prev;
+ gfloat *memory;
+ gint length;
+ gint i;
+ gint max_progress = roi->width * roi->height;
+ gint progress = 0;
+
+ length = roi->width + 1;
+ memory = g_new (gfloat, length * 2);
+
+ distp_prev = memory;
+ for (i = 0; i < length; i++)
+ distp_prev[i] = 0.0;
+
+ distp_prev += 1;
+ distp_cur = distp_prev + length;
+
+ for (i = 0; i < roi->height; i++)
+ {
+ gfloat *tmp;
+ gint src = 0;
+ gint j;
+
+ /* set the current dist row to 0's */
+ memset (distp_cur - 1, 0, sizeof (gfloat) * (length - 1));
+
+ for (j = 0; j < roi->width; j++)
+ {
+ gfloat float_tmp;
+ gfloat min_prev = MIN (distp_cur[j-1], distp_prev[j]);
+ gint min_left = MIN ((roi->width - j - 1), (roi->height - i - 1));
+ gint min = (gint) MIN (min_left, min_prev);
+ gint fraction = 255;
+ gint k;
+
+ /* This might need to be changed to 0
+ instead of k = (min) ? (min - 1) : 0 */
+
+ for (k = (min) ? (min - 1) : 0; k <= min; k++)
+ {
+ gint x = j;
+ gint y = i + k;
+ gint end = y - k;
+
+ while (y >= end)
+ {
+ guchar src_uchar;
+
+#if 0
+ /* FIXME: this should be much faster, it converts
+ * to 32 bit rgba intermediately, bah...
+ */
+ gegl_buffer_sample (input, x, y, NULL, &src_uchar,
+ input_format,
+ GEGL_SAMPLER_NEAREST, GEGL_ABYSS_NONE);
+#endif
+ gegl_buffer_get (input, GIMP_GEGL_RECT (x, y, 1, 1), 1.0,
+ input_format, &src_uchar,
+ GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
+
+ src = src_uchar;
+
+ if (src == 0)
+ {
+ min = k;
+ y = -1;
+ break;
+ }
+
+ if (src < fraction)
+ fraction = src;
+
+ x++;
+ y--;
+ }
+ }
+
+ if (src != 0)
+ {
+ /* If min_left != min_prev use the previous fraction
+ * if it is less than the one found
+ */
+ if (min_left != min)
+ {
+ gint prev_frac = (int) (255 * (min_prev - min));
+
+ if (prev_frac == 255)
+ prev_frac = 0;
+
+ fraction = MIN (fraction, prev_frac);
+ }
+
+ min++;
+ }
+
+ float_tmp = distp_cur[j] = min + fraction / 256.0;
+
+ if (float_tmp > max_iterations)
+ max_iterations = float_tmp;
+ }
+
+ /* set the dist row */
+ gegl_buffer_set (output,
+ GIMP_GEGL_RECT (roi->x, roi->y + i,
+ roi->width, 1),
+ 1.0, output_format, distp_cur,
+ GEGL_AUTO_ROWSTRIDE);
+
+ /* swap pointers around */
+ tmp = distp_prev;
+ distp_prev = distp_cur;
+ distp_cur = tmp;
+
+ progress += roi->height;
+ g_object_set (operation,
+ "progress", (gdouble) progress / max_progress,
+ NULL);
+ }
+
+ g_free (memory);
+
+ g_object_set (operation,
+ "max-iterations", (gdouble) max_iterations,
+ NULL);
+
+ return TRUE;
+}
diff --git a/app/gegl/gimpoperationshapeburst.h b/app/gegl/gimpoperationshapeburst.h
new file mode 100644
index 0000000..f5cef9d
--- /dev/null
+++ b/app/gegl/gimpoperationshapeburst.h
@@ -0,0 +1,55 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimpoperationshapeburst.h
+ * Copyright (C) 2012 Michael Natterer <mitch gimp org>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __GIMP_OPERATION_SHAPEBURST_H__
+#define __GIMP_OPERATION_SHAPEBURST_H__
+
+
+#include <gegl-plugin.h>
+
+
+#define GIMP_TYPE_OPERATION_SHAPEBURST (gimp_operation_shapeburst_get_type ())
+#define GIMP_OPERATION_SHAPEBURST(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_OPERATION_SHAPEBURST, GimpOperationShapeburst))
+#define GIMP_OPERATION_SHAPEBURST_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_OPERATION_SHAPEBURST, GimpOperationShapeburstClass))
+#define GIMP_IS_OPERATION_SHAPEBURST(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_OPERATION_SHAPEBURST))
+#define GIMP_IS_OPERATION_SHAPEBURST_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_OPERATION_SHAPEBURST))
+#define GIMP_OPERATION_SHAPEBURST_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_OPERATION_SHAPEBURST, GimpOperationShapeburstClass))
+
+
+typedef struct _GimpOperationShapeburstClass GimpOperationShapeburstClass;
+
+struct _GimpOperationShapeburst
+{
+ GeglOperationFilter parent_instance;
+
+ gdouble max_iterations;
+ gdouble progress;
+};
+
+struct _GimpOperationShapeburstClass
+{
+ GeglOperationFilterClass parent_class;
+};
+
+
+GType gimp_operation_shapeburst_get_type (void) G_GNUC_CONST;
+
+
+#endif /* __GIMP_OPERATION_SHAPEBURST_H__ */
diff --git a/app/paint-funcs/paint-funcs.c b/app/paint-funcs/paint-funcs.c
index 048a55f..74b3f82 100644
--- a/app/paint-funcs/paint-funcs.c
+++ b/app/paint-funcs/paint-funcs.c
@@ -1888,151 +1888,6 @@ rotate_pointers (guchar **p,
}
-gfloat
-shapeburst_region (PixelRegion *srcPR,
- PixelRegion *distPR,
- GimpProgressFunc progress_callback,
- gpointer progress_data)
-{
- Tile *tile;
- guchar *tile_data;
- gfloat max_iterations = 0.0;
- gfloat *distp_cur;
- gfloat *distp_prev;
- gfloat *memory;
- gfloat *tmp;
- gfloat min_prev;
- gfloat float_tmp;
- gint min;
- gint min_left;
- gint length;
- gint i, j, k;
- gint fraction;
- gint prev_frac;
- gint x, y;
- gint end;
- gint boundary;
- gint inc;
- gint src = 0;
- gint max_progress = srcPR->w * srcPR->h;
- gint progress = 0;
-
- length = distPR->w + 1;
- memory = g_new (gfloat, length * 2);
-
- distp_prev = memory;
- for (i = 0; i < length; i++)
- distp_prev[i] = 0.0;
-
- distp_prev += 1;
- distp_cur = distp_prev + length;
-
- for (i = 0; i < srcPR->h; i++)
- {
- /* set the current dist row to 0's */
- memset (distp_cur - 1, 0, sizeof (gfloat) * (length - 1));
-
- for (j = 0; j < srcPR->w; j++)
- {
- min_prev = MIN (distp_cur[j-1], distp_prev[j]);
- min_left = MIN ((srcPR->w - j - 1), (srcPR->h - i - 1));
- min = (gint) MIN (min_left, min_prev);
- fraction = 255;
-
- /* This might need to be changed to 0
- instead of k = (min) ? (min - 1) : 0 */
-
- for (k = (min) ? (min - 1) : 0; k <= min; k++)
- {
- x = j;
- y = i + k;
- end = y - k;
-
- while (y >= end)
- {
- gint width;
-
- tile = tile_manager_get_tile (srcPR->tiles,
- x, y, TRUE, FALSE);
-
- tile_data = tile_data_pointer (tile, x, y);
- width = tile_ewidth (tile);
-
- boundary = MIN (y % TILE_HEIGHT,
- width - (x % TILE_WIDTH) - 1);
- boundary = MIN (boundary, y - end) + 1;
-
- inc = 1 - width;
-
- while (boundary--)
- {
- src = *tile_data;
-
- if (src == 0)
- {
- min = k;
- y = -1;
- break;
- }
-
- if (src < fraction)
- fraction = src;
-
- x++;
- y--;
- tile_data += inc;
- }
-
- tile_release (tile, FALSE);
- }
- }
-
- if (src != 0)
- {
- /* If min_left != min_prev use the previous fraction
- * if it is less than the one found
- */
- if (min_left != min)
- {
- prev_frac = (int) (255 * (min_prev - min));
-
- if (prev_frac == 255)
- prev_frac = 0;
-
- fraction = MIN (fraction, prev_frac);
- }
-
- min++;
- }
-
- float_tmp = distp_cur[j] = min + fraction / 256.0;
-
- if (float_tmp > max_iterations)
- max_iterations = float_tmp;
- }
-
- /* set the dist row */
- pixel_region_set_row (distPR,
- distPR->x, distPR->y + i, distPR->w,
- (guchar *) distp_cur);
-
- /* swap pointers around */
- tmp = distp_prev;
- distp_prev = distp_cur;
- distp_cur = tmp;
-
- if (progress_callback)
- {
- progress += srcPR->h;
- (* progress_callback) (0, max_progress, progress, progress_data);
- }
- }
-
- g_free (memory);
-
- return max_iterations;
-}
-
/* Simple convolution filter to smooth a mask (1bpp). */
void
smooth_region (PixelRegion *region)
diff --git a/app/paint-funcs/paint-funcs.h b/app/paint-funcs/paint-funcs.h
index 1ae490c..5857ce4 100644
--- a/app/paint-funcs/paint-funcs.h
+++ b/app/paint-funcs/paint-funcs.h
@@ -282,11 +282,6 @@ void convolve_region (PixelRegion *srcR,
GimpConvolutionType mode,
gboolean alpha_weighting);
-gfloat shapeburst_region (PixelRegion *srcPR,
- PixelRegion *distPR,
- GimpProgressFunc progress_callback,
- gpointer progress_data);
-
void smooth_region (PixelRegion *region);
void erode_region (PixelRegion *region);
void dilate_region (PixelRegion *region);
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