Adding upstream version 2.10.22.upstream/2.10.22upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 180 insertions, 0 deletions

diff --git a/plug-ins/ifs-compose/ifs-compose.h b/plug-ins/ifs-compose/ifs-compose.h
new file mode 100644
index 0000000..28b9a3b
--- /dev/null
+++ b/plug-ins/ifs-compose/ifs-compose.h
@@ -0,0 +1,180 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * IfsCompose is a interface for creating IFS fractals by
+ * direct manipulation.
+ * Copyright (C) 1997 Owen Taylor
+ *
+ * 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 <https://www.gnu.org/licenses/>.
+ */
+
+typedef struct {
+  gdouble a11,a12,a21,a22,b1,b2;
+} Aff2;
+
+typedef struct {
+  gdouble vals[3][4];
+} Aff3;
+
+typedef struct {
+  GdkPoint *points;
+  gint      npoints;
+} IPolygon;
+
+typedef struct {
+  gdouble  x, y;
+  gdouble  theta;
+  gdouble  scale;
+  gdouble  asym;
+  gdouble  shear;
+  gint     flip;
+
+  GimpRGB  red_color;
+  GimpRGB  green_color;
+  GimpRGB  blue_color;
+  GimpRGB  black_color;
+
+  GimpRGB  target_color;
+  gdouble  hue_scale;
+  gdouble  value_scale;
+
+  gint     simple_color;
+  gdouble  prob;
+} AffElementVals;
+
+typedef struct
+{
+  gint num_elements;
+  gint iterations;
+  gint max_memory;
+  gint subdivide;
+  gdouble radius;
+  gdouble aspect_ratio;
+  gdouble center_x;
+  gdouble center_y;
+} IfsComposeVals;
+
+typedef struct {
+  AffElementVals v;
+
+  Aff2 trans;
+  Aff3 color_trans;
+
+  gchar *name;
+
+  IPolygon *click_boundary;
+  IPolygon *draw_boundary;
+} AffElement;
+
+
+/* manipulation of affine transforms */
+void aff2_translate       (Aff2    *naff,
+                           gdouble  x,
+                           gdouble  y);
+void aff2_rotate          (Aff2    *naff,
+                           gdouble  theta);
+void aff2_scale           (Aff2    *naff,
+                           gdouble  s,
+                           gint     flip);
+void aff2_distort         (Aff2    *naff,
+                           gdouble  asym,
+                           gdouble  shear);
+void aff2_compute_stretch (Aff2    *naff,
+			   gdouble  xo,
+                           gdouble  yo,
+			   gdouble  xn,
+                           gdouble  yn);
+void aff2_compute_distort (Aff2    *naff,
+			   gdouble  xo,
+                           gdouble  yo,
+			   gdouble  xn,
+                           gdouble  yn);
+void aff2_compose         (Aff2    *naff,
+                           Aff2    *aff1,
+                           Aff2    *aff2);
+void aff2_invert          (Aff2    *naff,
+                           Aff2    *aff);
+void aff2_apply           (Aff2    *aff,
+                           gdouble  x,
+                           gdouble  y,
+			   gdouble *xf,
+                           gdouble *yf);
+void aff2_fixed_point     (Aff2    *aff,
+                           gdouble *xf,
+                           gdouble *yf);
+void aff3_apply           (Aff3    *t,
+                           gdouble  x,
+                           gdouble  y,
+                           gdouble  z,
+			   gdouble *xf,
+                           gdouble *yf,
+                           gdouble *zf);
+
+
+/* manipulation of polygons */
+IPolygon *ipolygon_convex_hull (IPolygon *poly);
+gint      ipolygon_contains    (IPolygon *poly,
+                                gint      xt,
+                                gint      yt);
+
+
+/* manipulation of composite transforms */
+AffElement *aff_element_new                  (gdouble      x,
+                                              gdouble      y,
+                                              GimpRGB     *color,
+                                              gint         count);
+void        aff_element_free                 (AffElement  *elem);
+void        aff_element_compute_trans        (AffElement  *elem,
+                                              gdouble      width,
+					      gdouble      height,
+					      gdouble      center_x,
+                                              gdouble      center_y);
+void        aff_element_compute_color_trans  (AffElement  *elem);
+void        aff_element_decompose_trans      (AffElement  *elem,
+                                              Aff2        *aff,
+					      gdouble      width,
+                                              gdouble      height,
+					      gdouble      center_x,
+                                              gdouble      center_y);
+void        aff_element_compute_boundary     (AffElement  *elem,
+                                              gint         width,
+					      gint         height,
+					      AffElement **elements,
+					      gint         num_elements);
+void        aff_element_draw                 (AffElement  *elem,
+                                              gint         selected,
+                                              gint         width,
+                                              gint         height,
+                                              cairo_t     *cr,
+                                              GdkColor    *color,
+                                              PangoLayout *layout);
+
+
+void       ifs_render (AffElement     **elements,
+                       gint             num_elements,
+                       gint             width,
+                       gint             height,
+                       gint             nsteps,
+                       IfsComposeVals  *vals,
+                       gint             band_y,
+                       gint             band_height,
+                       guchar          *data,
+                       guchar          *mask,
+                       guchar          *nhits,
+                       gboolean         preview);
+
+gchar    * ifsvals_stringify    (IfsComposeVals   *vals,
+                                 AffElement      **elements);
+gboolean   ifsvals_parse_string (const gchar      *str,
+                                 IfsComposeVals   *vals,
+                                 AffElement     ***elements);