[gimp/goat-invasion: 203/325] libgimp: add a GeglBuffer backend for plug-ins
- From: Michael Natterer <mitch src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gimp/goat-invasion: 203/325] libgimp: add a GeglBuffer backend for plug-ins
- Date: Fri, 30 Mar 2012 09:51:18 +0000 (UTC)
commit 9230af98b5e2ce1b86b6a1cfcbc6164037b7c323
Author: Ãyvind KolÃs <pippin gimp org>
Date: Thu Mar 22 00:10:43 2012 +0000
libgimp: add a GeglBuffer backend for plug-ins
Also added an API to get GeglBuffers for drawables, you choose whether you
get.
libgimp/Makefile.am | 8 +-
libgimp/gimp.h | 1 +
libgimp/gimpdrawable.c | 29 ++++
libgimp/gimpdrawable.h | 5 +-
libgimp/gimptilebackendplugin.c | 293 +++++++++++++++++++++++++++++++++++++++
libgimp/gimptilebackendplugin.h | 58 ++++++++
libgimp/gimptypes.h | 18 ++--
plug-ins/common/Makefile.am | 18 +++
plug-ins/common/goat-exercise.c | 114 +++++++++++++++
plug-ins/common/plugin-defs.pl | 1 +
10 files changed, 533 insertions(+), 12 deletions(-)
---
diff --git a/libgimp/Makefile.am b/libgimp/Makefile.am
index 6e72896..23cda1f 100644
--- a/libgimp/Makefile.am
+++ b/libgimp/Makefile.am
@@ -62,8 +62,9 @@ AM_CPPFLAGS = \
-DGIMP_COMPILATION
INCLUDES = \
- -I$(top_srcdir) \
- $(GTK_CFLAGS) \
+ -I$(top_srcdir) \
+ $(GTK_CFLAGS) \
+ $(GEGL_CFLAGS) \
-I$(includedir)
lib_LTLIBRARIES = libgimp-2.0.la libgimpui-2.0.la
@@ -229,6 +230,8 @@ libgimp_2_0_la_sources = \
gimpselection.h \
gimptile.c \
gimptile.h \
+ gimptilebackendplugin.c \
+ gimptilebackendplugin.h \
gimpunitcache.c \
gimpunitcache.h \
gimpvectors.c \
@@ -368,6 +371,7 @@ libgimp_2_0_la_LIBADD = \
$(libgimpcolor) \
$(libgimpbase) \
$(CAIRO_LIBS) \
+ $(GEGL_LIBS) \
$(GDK_PIXBUF_LIBS) \
$(RT_LIBS)
diff --git a/libgimp/gimp.h b/libgimp/gimp.h
index ab054e4..f6ae86a 100644
--- a/libgimp/gimp.h
+++ b/libgimp/gimp.h
@@ -22,6 +22,7 @@
#define __GIMP_H__
#include <cairo.h>
+#include <gegl.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <libgimpbase/gimpbase.h>
diff --git a/libgimp/gimpdrawable.c b/libgimp/gimpdrawable.c
index 68e80d5..df3162e 100644
--- a/libgimp/gimpdrawable.c
+++ b/libgimp/gimpdrawable.c
@@ -23,6 +23,7 @@
#undef GIMP_DISABLE_DEPRECATED
#include "gimp.h"
+#include "gimptilebackendplugin.h"
#define TILE_WIDTH gimp_tile_width()
#define TILE_HEIGHT gimp_tile_height()
@@ -645,3 +646,31 @@ gimp_drawable_attach_new_parasite (gint32 drawable_ID,
return success;
}
+
+
+GeglBuffer *
+gimp_drawable_get_buffer (gint32 drawable_ID)
+{
+ GeglBuffer *buffer;
+ GimpDrawable *drawable;
+ GeglTileBackend *backend;
+ drawable = gimp_drawable_get (drawable_ID);
+ backend = gimp_tile_backend_plugin_new (drawable, FALSE);
+ buffer = gegl_buffer_new_for_backend (NULL, backend);
+ g_object_unref (backend);
+ return buffer;
+}
+
+
+GeglBuffer *
+gimp_drawable_get_shadow_buffer (gint32 drawable_ID)
+{
+ GeglBuffer *buffer;
+ GimpDrawable *drawable;
+ GeglTileBackend *backend;
+ drawable = gimp_drawable_get (drawable_ID);
+ backend = gimp_tile_backend_plugin_new (drawable, TRUE);
+ buffer = gegl_buffer_new_for_backend (NULL, backend);
+ g_object_unref (backend);
+ return buffer;
+}
diff --git a/libgimp/gimpdrawable.h b/libgimp/gimpdrawable.h
index 98045d2..c2fb6ef 100644
--- a/libgimp/gimpdrawable.h
+++ b/libgimp/gimpdrawable.h
@@ -29,7 +29,6 @@ G_BEGIN_DECLS
/* For information look into the C source or the html documentation */
-
struct _GimpDrawable
{
gint32 drawable_id; /* drawable ID */
@@ -43,6 +42,10 @@ struct _GimpDrawable
};
+GeglBuffer * gimp_drawable_get_buffer (gint32 drawable_ID);
+GeglBuffer * gimp_drawable_get_shadow_buffer (gint32 drawable_ID);
+
+
GimpDrawable * gimp_drawable_get (gint32 drawable_ID);
void gimp_drawable_detach (GimpDrawable *drawable);
void gimp_drawable_flush (GimpDrawable *drawable);
diff --git a/libgimp/gimptilebackendplugin.c b/libgimp/gimptilebackendplugin.c
new file mode 100644
index 0000000..8528eec
--- /dev/null
+++ b/libgimp/gimptilebackendplugin.c
@@ -0,0 +1,293 @@
+/* gimptilebackendtilemanager.c
+ * Copyright (C) 2012 Ãyvind KolÃs <pippin 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 <stdlib.h>
+#include <string.h>
+#include <gegl.h>
+#include "gimp.h"
+#include "gimptilebackendplugin.h"
+
+#define TILE_WIDTH gimp_tile_width()
+#define TILE_HEIGHT gimp_tile_width()
+
+struct _GimpTileBackendPluginPrivate
+{
+ GimpDrawable *drawable;
+ gboolean shadow;
+ int mul;
+};
+
+static int gimp_gegl_tile_mul (void)
+{
+ static int mul = 2;
+ static gboolean inited = 0;
+ if (G_LIKELY (inited))
+ return mul;
+ inited = 1;
+ if (g_getenv ("GIMP_GEGL_TILE_MUL"))
+ mul = atoi (g_getenv ("GIMP_GEGL_TILE_MUL"));
+ if (mul < 1)
+ mul = 1;
+ return mul;
+}
+
+static const Babl *get_format (gint32 drawable_ID);
+static const Babl *get_format (gint32 drawable_ID)
+{
+ gint32 image_ID = gimp_item_get_image (drawable_ID);
+ switch (gimp_drawable_type (drawable_ID))
+ {
+ case GIMP_RGB_IMAGE: return babl_format ("RGB u8");
+ case GIMP_RGBA_IMAGE: return babl_format ("RGBA u8");
+ case GIMP_GRAY_IMAGE: return babl_format ("Y u8");
+ case GIMP_GRAYA_IMAGE: return babl_format ("YA u8");
+ case GIMP_INDEXED_IMAGE:
+ case GIMP_INDEXEDA_IMAGE:
+ {
+ const Babl *pala, *pal;
+ gint ncols;
+ guchar *cmap = gimp_image_get_colormap (image_ID, &ncols);
+ babl_new_palette (NULL, &pal, &pala);
+ babl_palette_set_palette (pal, babl_format ("RGB u8"),
+ cmap, ncols);
+ g_free (cmap);
+ if (gimp_drawable_type (drawable_ID) == GIMP_INDEXEDA_IMAGE)
+ return pala;
+ return pal;
+ }
+ }
+ return NULL;
+}
+
+static void gimp_tile_backend_plugin_finalize (GObject *object);
+static gpointer gimp_tile_backend_plugin_command (GeglTileSource *tile_store,
+ GeglTileCommand command,
+ gint x,
+ gint y,
+ gint z,
+ gpointer data);
+
+static void gimp_tile_write_mul (GimpTileBackendPlugin *backend_plugin,
+ gint x,
+ gint y,
+ guchar *source);
+
+static GeglTile * gimp_tile_read_mul (GimpTileBackendPlugin *backend_plugin,
+ gint x,
+ gint y);
+
+G_DEFINE_TYPE (GimpTileBackendPlugin, gimp_tile_backend_plugin,
+ GEGL_TYPE_TILE_BACKEND)
+
+#define parent_class gimp_tile_backend_plugin_parent_class
+
+
+static void
+gimp_tile_backend_plugin_class_init (GimpTileBackendPluginClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ object_class->finalize = gimp_tile_backend_plugin_finalize;
+
+ g_type_class_add_private (klass, sizeof (GimpTileBackendPluginPrivate));
+ gimp_tile_cache_size (1024);
+}
+
+static void
+gimp_tile_backend_plugin_init (GimpTileBackendPlugin *backend)
+{
+ GeglTileSource *source = GEGL_TILE_SOURCE (backend);
+
+ backend->priv = G_TYPE_INSTANCE_GET_PRIVATE (backend,
+ GIMP_TYPE_TILE_BACKEND_PLUGIN,
+ GimpTileBackendPluginPrivate);
+
+ source->command = gimp_tile_backend_plugin_command;
+}
+
+static void
+gimp_tile_backend_plugin_finalize (GObject *object)
+{
+ GimpTileBackendPlugin *backend = GIMP_TILE_BACKEND_PLUGIN (object);
+
+ if (backend->priv->drawable) /* This also causes a flush */
+ gimp_drawable_detach (backend->priv->drawable);
+
+ G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static gpointer
+gimp_tile_backend_plugin_command (GeglTileSource *tile_store,
+ GeglTileCommand command,
+ gint x,
+ gint y,
+ gint z,
+ gpointer data)
+{
+ GimpTileBackendPlugin *backend_plugin;
+
+ backend_plugin = GIMP_TILE_BACKEND_PLUGIN (tile_store);
+
+ switch (command)
+ {
+ case GEGL_TILE_GET:
+ return gimp_tile_read_mul (backend_plugin, x, y);
+ case GEGL_TILE_SET:
+ gimp_tile_write_mul (backend_plugin, x, y, gegl_tile_get_data (data));
+ gegl_tile_mark_as_stored (data);
+ return NULL;
+ default:
+ g_assert (command < GEGL_TILE_LAST_COMMAND && command >= 0);
+ }
+
+ return NULL;
+}
+
+static GeglTile *
+gimp_tile_read_mul (GimpTileBackendPlugin *backend_plugin,
+ gint x,
+ gint y)
+{
+ GimpTileBackendPluginPrivate *priv = backend_plugin->priv;
+ GeglTileBackend *backend;
+ GeglTile *tile;
+ gint tile_size;
+ int u, v;
+ int mul = priv->mul;
+ unsigned char *tile_data;
+
+ x *= mul;
+ y *= mul;
+
+ backend = GEGL_TILE_BACKEND (backend_plugin);
+ tile_size = gegl_tile_backend_get_tile_size (backend);
+ tile = gegl_tile_new (tile_size);
+ tile_data = gegl_tile_get_data (tile);
+
+ for (u = 0; u < mul; u++)
+ for (v = 0; v < mul; v++)
+ {
+ GimpTile *gimp_tile;
+
+ if (x + u >= priv->drawable->ntile_cols ||
+ y + v >= priv->drawable->ntile_rows)
+ continue;
+
+ gimp_tile = gimp_drawable_get_tile (priv->drawable,
+ priv->shadow,
+ y+v, x+u);
+ gimp_tile_ref (gimp_tile);
+ {
+ gint ewidth = gimp_tile->ewidth;
+ gint eheight = gimp_tile->eheight;
+ gint bpp = gimp_tile->bpp;
+ gint tile_stride = mul * TILE_WIDTH * bpp;
+ gint gimp_tile_stride = ewidth * bpp;
+ gint row;
+
+ for (row = 0; row < eheight; row++)
+ {
+ memcpy (tile_data + (row + TILE_HEIGHT * v) *
+ tile_stride + u * TILE_WIDTH * bpp,
+ ((char*)gimp_tile->data) + row * gimp_tile_stride,
+ gimp_tile_stride);
+ }
+ }
+ gimp_tile_unref (gimp_tile, FALSE);
+ }
+
+ return tile;
+}
+
+static void
+gimp_tile_write_mul (GimpTileBackendPlugin *backend_plugin,
+ gint x,
+ gint y,
+ guchar *source)
+{
+ GimpTileBackendPluginPrivate *priv = backend_plugin->priv;
+ int u, v;
+ int mul = priv->mul;
+
+ if (!priv->shadow)
+ return;
+
+ x *= mul;
+ y *= mul;
+
+ for (v = 0; v < mul; v++)
+ for (u = 0; u < mul; u++)
+ {
+ GimpTile *gimp_tile;
+
+ if (x + u >= priv->drawable->ntile_cols ||
+ y + v >= priv->drawable->ntile_rows)
+ continue;
+
+ gimp_tile = gimp_drawable_get_tile (priv->drawable,
+ priv->shadow,
+ y+v, x+u);
+ gimp_tile_ref (gimp_tile);
+ {
+ gint ewidth = gimp_tile->ewidth;
+ gint eheight = gimp_tile->eheight;
+ gint bpp = gimp_tile->bpp;
+ gint tile_stride = mul * TILE_WIDTH * bpp;
+ gint gimp_tile_stride = ewidth * bpp;
+ gint row;
+
+ for (row = 0; row < eheight; row++)
+ memcpy (((char*)gimp_tile->data) + row * gimp_tile_stride,
+ source + (row + v * TILE_HEIGHT) *
+ tile_stride + u * TILE_WIDTH * bpp,
+ gimp_tile_stride);
+ }
+ gimp_tile_unref (gimp_tile, TRUE);
+ }
+}
+
+GeglTileBackend *
+gimp_tile_backend_plugin_new (GimpDrawable *drawable,
+ gint shadow)
+{
+ const Babl *format;
+ GeglTileBackend *ret;
+ GimpTileBackendPlugin *backend_plugin;
+ GimpTileBackendPluginPrivate *priv;
+
+ gint width = drawable->width;
+ gint height = drawable->height;
+ gint mul = gimp_gegl_tile_mul ();
+ GeglRectangle rect = { 0, 0, width, height};
+
+ format = get_format (drawable->drawable_id);
+
+ ret = g_object_new (GIMP_TYPE_TILE_BACKEND_PLUGIN,
+ "tile-width", TILE_WIDTH * mul,
+ "tile-height", TILE_HEIGHT * mul,
+ "format", format,
+ NULL);
+
+ backend_plugin = GIMP_TILE_BACKEND_PLUGIN (ret);
+ priv = backend_plugin->priv;
+ priv->drawable = drawable;
+ priv->mul = mul;
+ priv->shadow = shadow;
+
+ gegl_tile_backend_set_extent (ret, &rect);
+ return ret;
+}
diff --git a/libgimp/gimptilebackendplugin.h b/libgimp/gimptilebackendplugin.h
new file mode 100644
index 0000000..a887b31
--- /dev/null
+++ b/libgimp/gimptilebackendplugin.h
@@ -0,0 +1,58 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimptilebackendtilemanager.h
+ * Copyright (C) 2011 Ãyvind KolÃs <pippin 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_TILE_BACKEND_PLUGIN_H__
+#define __GIMP_TILE_BACKEND_PLUGIN_H__
+
+#include <gegl-buffer-backend.h>
+
+G_BEGIN_DECLS
+
+#define GIMP_TYPE_TILE_BACKEND_PLUGIN (gimp_tile_backend_plugin_get_type ())
+#define GIMP_TILE_BACKEND_PLUGIN(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_TILE_BACKEND_PLUGIN, GimpTileBackendPlugin))
+#define GIMP_TILE_BACKEND_PLUGIN_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_TILE_BACKEND_PLUGIN, GimpTileBackendPluginClass))
+#define GIMP_IS_TILE_BACKEND_PLUGIN(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_TILE_BACKEND_PLUGIN))
+#define GIMP_IS_TILE_BACKEND_PLUGIN_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_TILE_BACKEND_PLUGIN))
+#define GIMP_TILE_BACKEND_PLUGIN_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_TILE_BACKEND_PLUGIN, GimpTileBackendPluginClass))
+
+
+typedef struct _GimpTileBackendPluginClass GimpTileBackendPluginClass;
+typedef struct _GimpTileBackendPluginPrivate GimpTileBackendPluginPrivate;
+
+struct _GimpTileBackendPlugin
+{
+ GeglTileBackend parent_instance;
+
+ GimpTileBackendPluginPrivate *priv;
+};
+
+struct _GimpTileBackendPluginClass
+{
+ GeglTileBackendClass parent_class;
+};
+
+GType gimp_tile_backend_plugin_get_type (void) G_GNUC_CONST;
+
+GeglTileBackend * gimp_tile_backend_plugin_new (GimpDrawable *drawable,
+ gint shadow);
+
+G_END_DECLS
+
+#endif /* __GIMP_TILE_BACKEND_plugin_H__ */
diff --git a/libgimp/gimptypes.h b/libgimp/gimptypes.h
index 97958f6..b371146 100644
--- a/libgimp/gimptypes.h
+++ b/libgimp/gimptypes.h
@@ -28,15 +28,15 @@ G_BEGIN_DECLS
/* For information look into the html documentation */
-typedef struct _GimpPlugInInfo GimpPlugInInfo;
-typedef struct _GimpTile GimpTile;
-typedef struct _GimpDrawable GimpDrawable;
-typedef struct _GimpPixelRgn GimpPixelRgn;
-typedef struct _GimpParamDef GimpParamDef;
-typedef struct _GimpParamRegion GimpParamRegion;
-typedef union _GimpParamData GimpParamData;
-typedef struct _GimpParam GimpParam;
-
+typedef struct _GimpPlugInInfo GimpPlugInInfo;
+typedef struct _GimpTile GimpTile;
+typedef struct _GimpDrawable GimpDrawable;
+typedef struct _GimpPixelRgn GimpPixelRgn;
+typedef struct _GimpParamDef GimpParamDef;
+typedef struct _GimpParamRegion GimpParamRegion;
+typedef union _GimpParamData GimpParamData;
+typedef struct _GimpParam GimpParam;
+typedef struct _GimpTileBackendPlugin GimpTileBackendPlugin;
G_END_DECLS
diff --git a/plug-ins/common/Makefile.am b/plug-ins/common/Makefile.am
index ac40506..aafbbdd 100644
--- a/plug-ins/common/Makefile.am
+++ b/plug-ins/common/Makefile.am
@@ -40,6 +40,7 @@ EXTRA_DIST = \
INCLUDES = \
-I$(top_srcdir) \
$(GTK_CFLAGS) \
+ $(GEGL_CFLAGS) \
-I$(includedir)
libexec_PROGRAMS = \
@@ -127,6 +128,7 @@ libexec_PROGRAMS = \
film \
filter-pack \
fractal-trace \
+ goat-exercise \
gradient-map \
grid \
guillotine \
@@ -2263,6 +2265,22 @@ semi_flatten_LDADD = \
$(INTLLIBS) \
$(semi_flatten_RC)
+
+goat_exercise_SOURCES = \
+ goat-exercise.c
+
+goat_exercise_LDADD = \
+ $(libgimp) \
+ $(libgimpmath) \
+ $(libgimpconfig) \
+ $(libgimpcolor) \
+ $(libgimpbase) \
+ $(CAIRO_LIBS) \
+ $(GDK_PIXBUF_LIBS) \
+ $(RT_LIBS) \
+ $(INTLLIBS) \
+ $(goat_excercise_RC)
+
sharpen_SOURCES = \
sharpen.c
diff --git a/plug-ins/common/goat-exercise.c b/plug-ins/common/goat-exercise.c
new file mode 100644
index 0000000..8ab50d3
--- /dev/null
+++ b/plug-ins/common/goat-exercise.c
@@ -0,0 +1,114 @@
+/*
+ * Goat exercise plug-in by Ãyvind KolÃs, pippin 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 <libgimp/gimp.h>
+#include "libgimp/stdplugins-intl.h"
+
+#define PLUG_IN_PROC "plug-in-goat-exercise"
+
+/* Declare local functions.
+ */
+static void query (void);
+static void run (const gchar *name,
+ gint nparams,
+ const GimpParam *param,
+ gint *nreturn_vals,
+ GimpParam **return_vals);
+
+const GimpPlugInInfo PLUG_IN_INFO =
+{
+ NULL, /* init_proc */
+ NULL, /* quit_proc */
+ query, /* query_proc */
+ run, /* run_proc */
+};
+
+MAIN ()
+
+static void
+query (void)
+{
+ static const GimpParamDef args[] =
+ {
+ { GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
+ { GIMP_PDB_IMAGE, "image", "Input image (unused)" },
+ { GIMP_PDB_DRAWABLE, "drawable", "Input drawable" }
+ };
+
+ gimp_install_procedure (PLUG_IN_PROC,
+ N_("Exercise a goat"),
+ "takes a goat for a walk",
+ "Ãyvind KOlÃs <pippinp gimp org>",
+ "Ãyvind KOlÃs <pippinp gimp org>",
+ "21march 2012",
+ N_("Goat-exercise"),
+ "RGB*, INDEXED*, GRAY*",
+ GIMP_PLUGIN,
+ G_N_ELEMENTS (args), 0,
+ args, NULL);
+
+ gimp_plugin_menu_register (PLUG_IN_PROC, "<Image>/Filters/");
+}
+
+static void commit_shadow (gint32 drawable_id)
+{
+ GimpDrawable *drawable = gimp_drawable_get (drawable_id);
+ gimp_drawable_merge_shadow (drawable_id, TRUE);
+ gimp_drawable_update (drawable_id, 0, 0, drawable->width, drawable->height);
+ gimp_drawable_detach (drawable);
+}
+
+static void
+run (const gchar *name,
+ gint nparams,
+ const GimpParam *param,
+ gint *nreturn_vals,
+ GimpParam **return_vals)
+{
+ static GimpParam values[1];
+ GimpPDBStatusType status = GIMP_PDB_SUCCESS;
+ gint32 drawable_id;
+ GeglBuffer *buffer;
+ GeglBuffer *shadow_buffer;
+
+ *nreturn_vals = 1;
+ *return_vals = values;
+
+ gegl_init (NULL, NULL);
+
+ values[0].type = GIMP_PDB_STATUS;
+ values[0].data.d_status = status;
+
+ INIT_I18N();
+
+ drawable_id = param[2].data.d_drawable;
+ buffer = gimp_drawable_get_buffer (drawable_id);
+ shadow_buffer = gimp_drawable_get_shadow_buffer (drawable_id);
+ gegl_render_op (buffer, shadow_buffer, "gegl:unsharp-mask", NULL);
+
+ g_object_unref (shadow_buffer);
+ g_object_unref (buffer);
+ commit_shadow (drawable_id); /* the buffer first needs to be unreffed, so it is
+ in a detached state */
+
+ gimp_displays_flush ();
+ values[0].data.d_status = status;
+ gegl_exit ();
+}
diff --git a/plug-ins/common/plugin-defs.pl b/plug-ins/common/plugin-defs.pl
index f623235..03e9422 100644
--- a/plug-ins/common/plugin-defs.pl
+++ b/plug-ins/common/plugin-defs.pl
@@ -83,6 +83,7 @@
'film' => { ui => 1 },
'filter-pack' => { ui => 1 },
'fractal-trace' => { ui => 1 },
+ 'goat-exercise' => {},
'gradient-map' => {},
'grid' => { ui => 1 },
'guillotine' => {},
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