mirror of https://github.com/GNOME/gimp.git
266 lines
9.8 KiB
C
266 lines
9.8 KiB
C
/* GIMP - The GNU Image Manipulation Program
|
|
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
|
|
*
|
|
* 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 <gdk-pixbuf/gdk-pixbuf.h>
|
|
#include <gegl.h>
|
|
|
|
#include "libgimpbase/gimpbase.h"
|
|
|
|
#include "core-types.h"
|
|
|
|
#include "gegl/gimpapplicator.h"
|
|
#include "gegl/gimp-babl-compat.h"
|
|
#include "gegl/gimp-gegl-apply-operation.h"
|
|
#include "gegl/gimp-gegl-loops.h"
|
|
#include "gegl/gimp-gegl-utils.h"
|
|
|
|
#include "gimp.h"
|
|
#include "gimpchannel.h"
|
|
#include "gimpdrawable-combine.h"
|
|
#include "gimpimage.h"
|
|
#include "gimptempbuf.h"
|
|
|
|
|
|
void
|
|
gimp_drawable_real_apply_buffer (GimpDrawable *drawable,
|
|
GeglBuffer *buffer,
|
|
const GeglRectangle *buffer_region,
|
|
gboolean push_undo,
|
|
const gchar *undo_desc,
|
|
gdouble opacity,
|
|
GimpLayerMode mode,
|
|
GimpLayerColorSpace blend_space,
|
|
GimpLayerColorSpace composite_space,
|
|
GimpLayerCompositeMode composite_mode,
|
|
GeglBuffer *base_buffer,
|
|
gint base_x,
|
|
gint base_y)
|
|
{
|
|
GimpItem *item = GIMP_ITEM (drawable);
|
|
GimpImage *image = gimp_item_get_image (item);
|
|
GimpChannel *mask = gimp_image_get_mask (image);
|
|
GimpApplicator *applicator;
|
|
gint x, y, width, height;
|
|
gint offset_x, offset_y;
|
|
|
|
/* don't apply the mask to itself and don't apply an empty mask */
|
|
if (GIMP_DRAWABLE (mask) == drawable || gimp_channel_is_empty (mask))
|
|
mask = NULL;
|
|
|
|
if (! base_buffer)
|
|
base_buffer = gimp_drawable_get_buffer (drawable);
|
|
|
|
/* get the layer offsets */
|
|
gimp_item_get_offset (item, &offset_x, &offset_y);
|
|
|
|
/* make sure the image application coordinates are within drawable bounds */
|
|
if (! gimp_rectangle_intersect (base_x, base_y,
|
|
buffer_region->width, buffer_region->height,
|
|
0, 0,
|
|
gimp_item_get_width (item),
|
|
gimp_item_get_height (item),
|
|
&x, &y, &width, &height))
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (mask)
|
|
{
|
|
GimpItem *mask_item = GIMP_ITEM (mask);
|
|
|
|
/* make sure coordinates are in mask bounds ...
|
|
* we need to add the layer offset to transform coords
|
|
* into the mask coordinate system
|
|
*/
|
|
if (! gimp_rectangle_intersect (x, y, width, height,
|
|
-offset_x, -offset_y,
|
|
gimp_item_get_width (mask_item),
|
|
gimp_item_get_height (mask_item),
|
|
&x, &y, &width, &height))
|
|
{
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (push_undo)
|
|
{
|
|
gimp_drawable_push_undo (drawable, undo_desc,
|
|
NULL, x, y, width, height);
|
|
}
|
|
|
|
applicator = gimp_applicator_new (NULL);
|
|
|
|
if (mask)
|
|
{
|
|
GeglBuffer *mask_buffer;
|
|
|
|
mask_buffer = gimp_drawable_get_buffer (GIMP_DRAWABLE (mask));
|
|
|
|
gimp_applicator_set_mask_buffer (applicator, mask_buffer);
|
|
gimp_applicator_set_mask_offset (applicator, -offset_x, -offset_y);
|
|
}
|
|
|
|
gimp_applicator_set_src_buffer (applicator, base_buffer);
|
|
gimp_applicator_set_dest_buffer (applicator,
|
|
gimp_drawable_get_buffer (drawable));
|
|
|
|
gimp_applicator_set_apply_buffer (applicator, buffer);
|
|
gimp_applicator_set_apply_offset (applicator,
|
|
base_x - buffer_region->x,
|
|
base_y - buffer_region->y);
|
|
|
|
gimp_applicator_set_opacity (applicator, opacity);
|
|
gimp_applicator_set_mode (applicator, mode,
|
|
blend_space, composite_space, composite_mode);
|
|
gimp_applicator_set_affect (applicator,
|
|
gimp_drawable_get_active_mask (drawable));
|
|
|
|
gimp_applicator_blit (applicator, GEGL_RECTANGLE (x, y, width, height));
|
|
|
|
g_object_unref (applicator);
|
|
}
|
|
|
|
/* Similar to gimp_drawable_apply_region but works in "replace" mode (i.e.
|
|
* transparent pixels in src2 make the result transparent rather than
|
|
* opaque.
|
|
*
|
|
* Takes an additional mask pixel region as well.
|
|
*/
|
|
void
|
|
gimp_drawable_real_replace_buffer (GimpDrawable *drawable,
|
|
GeglBuffer *buffer,
|
|
const GeglRectangle *buffer_region,
|
|
gboolean push_undo,
|
|
const gchar *undo_desc,
|
|
gdouble opacity,
|
|
GeglBuffer *mask_buffer,
|
|
const GeglRectangle *mask_buffer_region,
|
|
gint dest_x,
|
|
gint dest_y)
|
|
{
|
|
GimpItem *item = GIMP_ITEM (drawable);
|
|
GimpImage *image = gimp_item_get_image (item);
|
|
GimpChannel *mask = gimp_image_get_mask (image);
|
|
GeglBuffer *drawable_buffer;
|
|
GeglRectangle buffer_rect = *buffer_region;
|
|
GeglRectangle mask_buffer_rect = *mask_buffer_region;
|
|
gint x, y, width, height;
|
|
gint offset_x, offset_y;
|
|
gboolean active_components[MAX_CHANNELS];
|
|
|
|
/* don't apply the mask to itself and don't apply an empty mask */
|
|
if (GIMP_DRAWABLE (mask) == drawable || gimp_channel_is_empty (mask))
|
|
mask = NULL;
|
|
|
|
/* configure the active channel array */
|
|
gimp_drawable_get_active_components (drawable, active_components);
|
|
|
|
/* get the layer offsets */
|
|
gimp_item_get_offset (item, &offset_x, &offset_y);
|
|
|
|
/* make sure the image application coordinates are within drawable bounds */
|
|
if (! gimp_rectangle_intersect (dest_x, dest_y,
|
|
buffer_rect.width, buffer_rect.height,
|
|
0, 0,
|
|
gimp_item_get_width (item),
|
|
gimp_item_get_height (item),
|
|
&x, &y, &width, &height))
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (mask)
|
|
{
|
|
GimpItem *mask_item = GIMP_ITEM (mask);
|
|
|
|
/* make sure coordinates are in mask bounds ...
|
|
* we need to add the layer offset to transform coords
|
|
* into the mask coordinate system
|
|
*/
|
|
if (! gimp_rectangle_intersect (x, y, width, height,
|
|
-offset_x, -offset_y,
|
|
gimp_item_get_width (mask_item),
|
|
gimp_item_get_height (mask_item),
|
|
&x, &y, &width, &height))
|
|
{
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* adjust the original regions according to the application
|
|
* offset and size
|
|
*/
|
|
buffer_rect.x += x - dest_x;
|
|
buffer_rect.y += y - dest_y;
|
|
buffer_rect.width = width;
|
|
buffer_rect.height = height;
|
|
|
|
mask_buffer_rect.x += x - dest_x;
|
|
mask_buffer_rect.y += y - dest_y;
|
|
mask_buffer_rect.width = width;
|
|
mask_buffer_rect.height = height;
|
|
|
|
/* If the calling procedure specified an undo step... */
|
|
if (push_undo)
|
|
gimp_drawable_push_undo (drawable, undo_desc,
|
|
NULL, x, y, width, height);
|
|
|
|
drawable_buffer = gimp_drawable_get_buffer (drawable);
|
|
|
|
if (mask)
|
|
{
|
|
GeglBuffer *src_buffer;
|
|
GeglBuffer *dest_buffer;
|
|
|
|
src_buffer = gimp_drawable_get_buffer (GIMP_DRAWABLE (mask));
|
|
|
|
dest_buffer = gegl_buffer_new (GEGL_RECTANGLE (0, 0, width, height),
|
|
gegl_buffer_get_format (src_buffer));
|
|
|
|
gimp_gegl_buffer_copy (src_buffer,
|
|
GEGL_RECTANGLE (x + offset_x, y + offset_y,
|
|
width, height),
|
|
GEGL_ABYSS_NONE,
|
|
dest_buffer,
|
|
GEGL_RECTANGLE (0, 0, 0, 0));
|
|
|
|
gimp_gegl_combine_mask (mask_buffer, &mask_buffer_rect,
|
|
dest_buffer, GEGL_RECTANGLE (0, 0, width, height),
|
|
1.0);
|
|
|
|
gimp_gegl_replace (buffer, &buffer_rect,
|
|
drawable_buffer, GEGL_RECTANGLE (x, y, width, height),
|
|
dest_buffer, GEGL_RECTANGLE (0, 0, width, height),
|
|
drawable_buffer, GEGL_RECTANGLE (x, y, width, height),
|
|
opacity,
|
|
active_components);
|
|
|
|
g_object_unref (dest_buffer);
|
|
}
|
|
else
|
|
{
|
|
gimp_gegl_replace (buffer, &buffer_rect,
|
|
drawable_buffer, GEGL_RECTANGLE (x, y, width, height),
|
|
mask_buffer, &mask_buffer_rect,
|
|
drawable_buffer, GEGL_RECTANGLE (x, y, width, height),
|
|
opacity,
|
|
active_components);
|
|
}
|
|
}
|