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-rw-r--r--app/gegl/gimpapplicator.c652
1 files changed, 652 insertions, 0 deletions
diff --git a/app/gegl/gimpapplicator.c b/app/gegl/gimpapplicator.c
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+++ b/app/gegl/gimpapplicator.c
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+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimpapplicator.c
+ * Copyright (C) 2012-2013 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 <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <gegl.h>
+
+#include "gimp-gegl-types.h"
+
+#include "gimp-gegl-nodes.h"
+#include "gimpapplicator.h"
+
+
+static void gimp_applicator_finalize (GObject *object);
+static void gimp_applicator_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gimp_applicator_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec);
+
+
+G_DEFINE_TYPE (GimpApplicator, gimp_applicator, G_TYPE_OBJECT)
+
+#define parent_class gimp_applicator_parent_class
+
+
+static void
+gimp_applicator_class_init (GimpApplicatorClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ object_class->finalize = gimp_applicator_finalize;
+ object_class->set_property = gimp_applicator_set_property;
+ object_class->get_property = gimp_applicator_get_property;
+}
+
+static void
+gimp_applicator_init (GimpApplicator *applicator)
+{
+ applicator->active = TRUE;
+ applicator->opacity = 1.0;
+ applicator->paint_mode = GIMP_LAYER_MODE_NORMAL;
+ applicator->blend_space = GIMP_LAYER_COLOR_SPACE_AUTO;
+ applicator->composite_space = GIMP_LAYER_COLOR_SPACE_AUTO;
+ applicator->composite_mode = GIMP_LAYER_COMPOSITE_AUTO;
+ applicator->affect = GIMP_COMPONENT_MASK_ALL;
+}
+
+static void
+gimp_applicator_finalize (GObject *object)
+{
+ GimpApplicator *applicator = GIMP_APPLICATOR (object);
+
+ g_clear_object (&applicator->node);
+
+ G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+gimp_applicator_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ switch (property_id)
+ {
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static void
+gimp_applicator_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ switch (property_id)
+ {
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+GimpApplicator *
+gimp_applicator_new (GeglNode *parent)
+{
+ GimpApplicator *applicator;
+
+ g_return_val_if_fail (parent == NULL || GEGL_IS_NODE (parent), NULL);
+
+ applicator = g_object_new (GIMP_TYPE_APPLICATOR, NULL);
+
+ if (parent)
+ applicator->node = g_object_ref (parent);
+ else
+ applicator->node = gegl_node_new ();
+
+ applicator->input_node =
+ gegl_node_get_input_proxy (applicator->node, "input");
+
+ applicator->aux_node =
+ gegl_node_get_input_proxy (applicator->node, "aux");
+
+ applicator->output_node =
+ gegl_node_get_output_proxy (applicator->node, "output");
+
+ applicator->mode_node = gegl_node_new_child (applicator->node,
+ "operation", "gimp:normal",
+ NULL);
+
+ gimp_gegl_mode_node_set_mode (applicator->mode_node,
+ applicator->paint_mode,
+ applicator->blend_space,
+ applicator->composite_space,
+ applicator->composite_mode);
+ gimp_gegl_mode_node_set_opacity (applicator->mode_node,
+ applicator->opacity);
+
+ gegl_node_connect_to (applicator->input_node, "output",
+ applicator->mode_node, "input");
+
+ applicator->apply_offset_node =
+ gegl_node_new_child (applicator->node,
+ "operation", "gegl:translate",
+ NULL);
+
+ gegl_node_link_many (applicator->aux_node,
+ applicator->apply_offset_node,
+ NULL);
+
+ gegl_node_connect_to (applicator->apply_offset_node, "output",
+ applicator->mode_node, "aux");
+
+ applicator->mask_node =
+ gegl_node_new_child (applicator->node,
+ "operation", "gegl:buffer-source",
+ NULL);
+
+ applicator->mask_offset_node =
+ gegl_node_new_child (applicator->node,
+ "operation", "gegl:translate",
+ NULL);
+
+ gegl_node_connect_to (applicator->mask_node, "output",
+ applicator->mask_offset_node, "input");
+ /* don't connect the the mask offset node to mode's aux2 yet */
+
+ applicator->affect_node =
+ gegl_node_new_child (applicator->node,
+ "operation", "gimp:mask-components",
+ "mask", applicator->affect,
+ NULL);
+
+ applicator->convert_format_node =
+ gegl_node_new_child (applicator->node,
+ "operation", "gegl:nop",
+ NULL);
+
+ applicator->cache_node =
+ gegl_node_new_child (applicator->node,
+ "operation", "gegl:nop",
+ NULL);
+
+ applicator->crop_node =
+ gegl_node_new_child (applicator->node,
+ "operation", "gegl:nop",
+ NULL);
+
+ gegl_node_link_many (applicator->input_node,
+ applicator->affect_node,
+ applicator->convert_format_node,
+ applicator->cache_node,
+ applicator->crop_node,
+ applicator->output_node,
+ NULL);
+
+ gegl_node_connect_to (applicator->mode_node, "output",
+ applicator->affect_node, "aux");
+
+ return applicator;
+}
+
+void
+gimp_applicator_set_active (GimpApplicator *applicator,
+ gboolean active)
+{
+ g_return_if_fail (GIMP_IS_APPLICATOR (applicator));
+
+ if (active != applicator->active)
+ {
+ applicator->active = active;
+
+ if (active)
+ gegl_node_link (applicator->crop_node, applicator->output_node);
+ else
+ gegl_node_link (applicator->input_node, applicator->output_node);
+ }
+}
+
+void
+gimp_applicator_set_src_buffer (GimpApplicator *applicator,
+ GeglBuffer *src_buffer)
+{
+ g_return_if_fail (GIMP_IS_APPLICATOR (applicator));
+ g_return_if_fail (src_buffer == NULL || GEGL_IS_BUFFER (src_buffer));
+
+ if (src_buffer == applicator->src_buffer)
+ return;
+
+ if (src_buffer)
+ {
+ if (! applicator->src_node)
+ {
+ applicator->src_node =
+ gegl_node_new_child (applicator->node,
+ "operation", "gegl:buffer-source",
+ "buffer", src_buffer,
+ NULL);
+ }
+ else
+ {
+ gegl_node_set (applicator->src_node,
+ "buffer", src_buffer,
+ NULL);
+ }
+
+ if (! applicator->src_buffer)
+ gegl_node_link (applicator->src_node, applicator->input_node);
+ }
+ else if (applicator->src_buffer)
+ {
+ gegl_node_disconnect (applicator->input_node, "input");
+
+ gegl_node_set (applicator->src_node,
+ "buffer", NULL,
+ NULL);
+ }
+
+ applicator->src_buffer = src_buffer;
+}
+
+void
+gimp_applicator_set_dest_buffer (GimpApplicator *applicator,
+ GeglBuffer *dest_buffer)
+{
+ g_return_if_fail (GIMP_IS_APPLICATOR (applicator));
+ g_return_if_fail (dest_buffer == NULL || GEGL_IS_BUFFER (dest_buffer));
+
+ if (dest_buffer == applicator->dest_buffer)
+ return;
+
+ if (dest_buffer)
+ {
+ if (! applicator->dest_node)
+ {
+ applicator->dest_node =
+ gegl_node_new_child (applicator->node,
+ "operation", "gegl:write-buffer",
+ "buffer", dest_buffer,
+ NULL);
+ }
+ else
+ {
+ gegl_node_set (applicator->dest_node,
+ "buffer", dest_buffer,
+ NULL);
+ }
+
+ if (! applicator->dest_buffer)
+ gegl_node_link (applicator->affect_node, applicator->dest_node);
+ }
+ else if (applicator->dest_buffer)
+ {
+ gegl_node_disconnect (applicator->dest_node, "input");
+
+ gegl_node_set (applicator->dest_node,
+ "buffer", NULL,
+ NULL);
+ }
+
+ applicator->dest_buffer = dest_buffer;
+}
+
+void
+gimp_applicator_set_mask_buffer (GimpApplicator *applicator,
+ GeglBuffer *mask_buffer)
+{
+ g_return_if_fail (GIMP_IS_APPLICATOR (applicator));
+ g_return_if_fail (mask_buffer == NULL || GEGL_IS_BUFFER (mask_buffer));
+
+ if (applicator->mask_buffer == mask_buffer)
+ return;
+
+ gegl_node_set (applicator->mask_node,
+ "buffer", mask_buffer,
+ NULL);
+
+ if (mask_buffer)
+ {
+ gegl_node_connect_to (applicator->mask_offset_node, "output",
+ applicator->mode_node, "aux2");
+ }
+ else
+ {
+ gegl_node_disconnect (applicator->mode_node, "aux2");
+ }
+
+ applicator->mask_buffer = mask_buffer;
+}
+
+void
+gimp_applicator_set_mask_offset (GimpApplicator *applicator,
+ gint mask_offset_x,
+ gint mask_offset_y)
+{
+ g_return_if_fail (GIMP_IS_APPLICATOR (applicator));
+
+ if (applicator->mask_offset_x != mask_offset_x ||
+ applicator->mask_offset_y != mask_offset_y)
+ {
+ applicator->mask_offset_x = mask_offset_x;
+ applicator->mask_offset_y = mask_offset_y;
+
+ gegl_node_set (applicator->mask_offset_node,
+ "x", (gdouble) mask_offset_x,
+ "y", (gdouble) mask_offset_y,
+ NULL);
+ }
+}
+
+void
+gimp_applicator_set_apply_buffer (GimpApplicator *applicator,
+ GeglBuffer *apply_buffer)
+{
+ g_return_if_fail (GIMP_IS_APPLICATOR (applicator));
+ g_return_if_fail (apply_buffer == NULL || GEGL_IS_BUFFER (apply_buffer));
+
+ if (apply_buffer == applicator->apply_buffer)
+ return;
+
+ if (apply_buffer)
+ {
+ if (! applicator->apply_src_node)
+ {
+ applicator->apply_src_node =
+ gegl_node_new_child (applicator->node,
+ "operation", "gegl:buffer-source",
+ "buffer", apply_buffer,
+ NULL);
+ }
+ else
+ {
+ gegl_node_set (applicator->apply_src_node,
+ "buffer", apply_buffer,
+ NULL);
+ }
+
+ if (! applicator->apply_buffer)
+ {
+ gegl_node_connect_to (applicator->apply_src_node, "output",
+ applicator->apply_offset_node, "input");
+ }
+ }
+ else if (applicator->apply_buffer)
+ {
+ gegl_node_connect_to (applicator->aux_node, "output",
+ applicator->apply_offset_node, "input");
+ }
+
+ applicator->apply_buffer = apply_buffer;
+}
+
+void
+gimp_applicator_set_apply_offset (GimpApplicator *applicator,
+ gint apply_offset_x,
+ gint apply_offset_y)
+{
+ g_return_if_fail (GIMP_IS_APPLICATOR (applicator));
+
+ if (applicator->apply_offset_x != apply_offset_x ||
+ applicator->apply_offset_y != apply_offset_y)
+ {
+ applicator->apply_offset_x = apply_offset_x;
+ applicator->apply_offset_y = apply_offset_y;
+
+ gegl_node_set (applicator->apply_offset_node,
+ "x", (gdouble) apply_offset_x,
+ "y", (gdouble) apply_offset_y,
+ NULL);
+ }
+}
+
+void
+gimp_applicator_set_opacity (GimpApplicator *applicator,
+ gdouble opacity)
+{
+ g_return_if_fail (GIMP_IS_APPLICATOR (applicator));
+
+ if (applicator->opacity != opacity)
+ {
+ applicator->opacity = opacity;
+
+ gimp_gegl_mode_node_set_opacity (applicator->mode_node,
+ opacity);
+ }
+}
+
+void
+gimp_applicator_set_mode (GimpApplicator *applicator,
+ GimpLayerMode paint_mode,
+ GimpLayerColorSpace blend_space,
+ GimpLayerColorSpace composite_space,
+ GimpLayerCompositeMode composite_mode)
+{
+ g_return_if_fail (GIMP_IS_APPLICATOR (applicator));
+
+ if (applicator->paint_mode != paint_mode ||
+ applicator->blend_space != blend_space ||
+ applicator->composite_space != composite_space ||
+ applicator->composite_mode != composite_mode)
+ {
+ applicator->paint_mode = paint_mode;
+ applicator->blend_space = blend_space;
+ applicator->composite_space = composite_space;
+ applicator->composite_mode = composite_mode;
+
+ gimp_gegl_mode_node_set_mode (applicator->mode_node,
+ paint_mode, blend_space,
+ composite_space, composite_mode);
+ }
+}
+
+void
+gimp_applicator_set_affect (GimpApplicator *applicator,
+ GimpComponentMask affect)
+{
+ g_return_if_fail (GIMP_IS_APPLICATOR (applicator));
+
+ if (applicator->affect != affect)
+ {
+ applicator->affect = affect;
+
+ gegl_node_set (applicator->affect_node,
+ "mask", affect,
+ NULL);
+ }
+}
+
+void
+gimp_applicator_set_output_format (GimpApplicator *applicator,
+ const Babl *format)
+{
+ g_return_if_fail (GIMP_IS_APPLICATOR (applicator));
+
+ if (applicator->output_format != format)
+ {
+ if (format)
+ {
+ if (! applicator->output_format)
+ {
+ gegl_node_set (applicator->convert_format_node,
+ "operation", "gegl:convert-format",
+ "format", format,
+ NULL);
+ }
+ else
+ {
+ gegl_node_set (applicator->convert_format_node,
+ "format", format,
+ NULL);
+ }
+ }
+ else
+ {
+ gegl_node_set (applicator->convert_format_node,
+ "operation", "gegl:nop",
+ NULL);
+ }
+
+ applicator->output_format = format;
+ }
+}
+
+const Babl *
+gimp_applicator_get_output_format (GimpApplicator *applicator)
+{
+ g_return_val_if_fail (GIMP_IS_APPLICATOR (applicator), NULL);
+
+ return applicator->output_format;
+}
+
+void
+gimp_applicator_set_cache (GimpApplicator *applicator,
+ gboolean enable)
+{
+ g_return_if_fail (GIMP_IS_APPLICATOR (applicator));
+
+ if (applicator->cache_enabled != enable)
+ {
+ if (enable)
+ {
+ gegl_node_set (applicator->cache_node,
+ "operation", "gegl:cache",
+ NULL);
+ }
+ else
+ {
+ gegl_node_set (applicator->cache_node,
+ "operation", "gegl:nop",
+ NULL);
+ }
+
+ applicator->cache_enabled = enable;
+ }
+}
+
+gboolean
+gimp_applicator_get_cache (GimpApplicator *applicator)
+{
+ g_return_val_if_fail (GIMP_IS_APPLICATOR (applicator), FALSE);
+
+ return applicator->cache_enabled;
+}
+
+gboolean gegl_buffer_list_valid_rectangles (GeglBuffer *buffer,
+ GeglRectangle **rectangles,
+ gint *n_rectangles);
+
+GeglBuffer *
+gimp_applicator_get_cache_buffer (GimpApplicator *applicator,
+ GeglRectangle **rectangles,
+ gint *n_rectangles)
+{
+ g_return_val_if_fail (GIMP_IS_APPLICATOR (applicator), NULL);
+ g_return_val_if_fail (rectangles != NULL, NULL);
+ g_return_val_if_fail (n_rectangles != NULL, NULL);
+
+ if (applicator->cache_enabled)
+ {
+ GeglBuffer *cache;
+
+ gegl_node_get (applicator->cache_node,
+ "cache", &cache,
+ NULL);
+
+ if (cache)
+ {
+ if (gegl_buffer_list_valid_rectangles (cache,
+ rectangles, n_rectangles))
+ {
+ return cache;
+ }
+
+ g_object_unref (cache);
+ }
+ }
+
+ return NULL;
+}
+
+void
+gimp_applicator_set_crop (GimpApplicator *applicator,
+ const GeglRectangle *rect)
+{
+ g_return_if_fail (GIMP_IS_APPLICATOR (applicator));
+
+ if (applicator->crop_enabled != (rect != NULL) ||
+ (rect && ! gegl_rectangle_equal (&applicator->crop_rect, rect)))
+ {
+ if (rect)
+ {
+ if (! applicator->crop_enabled)
+ {
+ gegl_node_set (applicator->crop_node,
+ "operation", "gimp:compose-crop",
+ "x", rect->x,
+ "y", rect->y,
+ "width", rect->width,
+ "height", rect->height,
+ NULL);
+
+ gegl_node_connect_to (applicator->input_node, "output",
+ applicator->crop_node, "aux");
+ }
+ else
+ {
+ gegl_node_set (applicator->crop_node,
+ "x", rect->x,
+ "y", rect->y,
+ "width", rect->width,
+ "height", rect->height,
+ NULL);
+ }
+
+ applicator->crop_enabled = TRUE;
+ applicator->crop_rect = *rect;
+ }
+ else
+ {
+ gegl_node_disconnect (applicator->crop_node, "aux");
+ gegl_node_set (applicator->crop_node,
+ "operation", "gegl:nop",
+ NULL);
+
+ applicator->crop_enabled = FALSE;
+ }
+ }
+}
+
+const GeglRectangle *
+gimp_applicator_get_crop (GimpApplicator *applicator)
+{
+ g_return_val_if_fail (GIMP_IS_APPLICATOR (applicator), NULL);
+
+ if (applicator->crop_enabled)
+ return &applicator->crop_rect;
+
+ return NULL;
+}
+
+void
+gimp_applicator_blit (GimpApplicator *applicator,
+ const GeglRectangle *rect)
+{
+ g_return_if_fail (GIMP_IS_APPLICATOR (applicator));
+
+ gegl_node_blit (applicator->dest_node, 1.0, rect,
+ NULL, NULL, 0, GEGL_BLIT_DEFAULT);
+}