mirror of https://github.com/GNOME/gimp.git
256 lines
9.5 KiB
C
256 lines
9.5 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include <gegl.h>
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#include "libgimpbase/gimpbase.h"
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#include "core-types.h"
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#include "gegl/gimpapplicator.h"
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#include "gegl/gimp-babl-compat.h"
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#include "gegl/gimp-gegl-apply-operation.h"
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#include "gegl/gimp-gegl-loops.h"
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#include "gegl/gimp-gegl-utils.h"
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#include "gimp.h"
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#include "gimpchannel.h"
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#include "gimpdrawable-combine.h"
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#include "gimpdrawableundo.h"
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#include "gimpimage.h"
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#include "gimpimage-undo.h"
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#include "gimptempbuf.h"
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void
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gimp_drawable_real_apply_buffer (GimpDrawable *drawable,
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GeglBuffer *buffer,
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const GeglRectangle *buffer_region,
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gboolean push_undo,
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const gchar *undo_desc,
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gdouble opacity,
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GimpLayerModeEffects mode,
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GeglBuffer *base_buffer,
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gint base_x,
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gint base_y)
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{
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GimpItem *item = GIMP_ITEM (drawable);
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GimpImage *image = gimp_item_get_image (item);
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GimpChannel *mask = gimp_image_get_mask (image);
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GimpApplicator *applicator;
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gint x, y, width, height;
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gint offset_x, offset_y;
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/* don't apply the mask to itself and don't apply an empty mask */
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if (GIMP_DRAWABLE (mask) == drawable || gimp_channel_is_empty (mask))
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mask = NULL;
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if (! base_buffer)
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base_buffer = gimp_drawable_get_buffer (drawable);
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/* get the layer offsets */
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gimp_item_get_offset (item, &offset_x, &offset_y);
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/* make sure the image application coordinates are within drawable bounds */
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gimp_rectangle_intersect (base_x, base_y,
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buffer_region->width, buffer_region->height,
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0, 0,
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gimp_item_get_width (item),
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gimp_item_get_height (item),
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&x, &y, &width, &height);
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if (mask)
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{
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GimpItem *mask_item = GIMP_ITEM (mask);
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/* make sure coordinates are in mask bounds ...
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* we need to add the layer offset to transform coords
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* into the mask coordinate system
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*/
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gimp_rectangle_intersect (x, y, width, height,
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-offset_x, -offset_y,
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gimp_item_get_width (mask_item),
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gimp_item_get_height (mask_item),
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&x, &y, &width, &height);
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}
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if (push_undo)
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{
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GimpDrawableUndo *undo;
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gimp_drawable_push_undo (drawable, undo_desc,
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NULL, x, y, width, height);
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undo = GIMP_DRAWABLE_UNDO (gimp_image_undo_get_fadeable (image));
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if (undo)
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{
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undo->paint_mode = mode;
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undo->opacity = opacity;
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undo->applied_buffer =
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gegl_buffer_new (GEGL_RECTANGLE (0, 0, width, height),
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gegl_buffer_get_format (buffer));
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gegl_buffer_copy (buffer,
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GEGL_RECTANGLE (buffer_region->x + (x - base_x),
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buffer_region->y + (y - base_y),
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width, height),
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undo->applied_buffer,
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GEGL_RECTANGLE (0, 0, width, height));
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}
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}
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applicator = gimp_applicator_new (NULL, gimp_drawable_get_linear (drawable));
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if (mask)
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{
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GeglBuffer *mask_buffer;
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mask_buffer = gimp_drawable_get_buffer (GIMP_DRAWABLE (mask));
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gimp_applicator_set_mask_buffer (applicator, mask_buffer);
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gimp_applicator_set_mask_offset (applicator, -offset_x, -offset_y);
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}
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gimp_applicator_set_src_buffer (applicator, base_buffer);
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gimp_applicator_set_dest_buffer (applicator,
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gimp_drawable_get_buffer (drawable));
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gimp_applicator_set_apply_buffer (applicator, buffer);
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gimp_applicator_set_apply_offset (applicator,
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base_x - buffer_region->x,
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base_y - buffer_region->y);
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gimp_applicator_set_mode (applicator, opacity, mode);
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gimp_applicator_set_affect (applicator,
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gimp_drawable_get_active_mask (drawable));
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gimp_applicator_blit (applicator, GEGL_RECTANGLE (x, y, width, height));
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g_object_unref (applicator);
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}
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/* Similar to gimp_drawable_apply_region but works in "replace" mode (i.e.
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* transparent pixels in src2 make the result transparent rather than
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* opaque.
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*
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* Takes an additional mask pixel region as well.
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*/
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void
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gimp_drawable_real_replace_buffer (GimpDrawable *drawable,
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GeglBuffer *buffer,
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const GeglRectangle *buffer_region,
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gboolean push_undo,
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const gchar *undo_desc,
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gdouble opacity,
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GeglBuffer *mask_buffer,
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const GeglRectangle *mask_buffer_region,
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gint dest_x,
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gint dest_y)
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{
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GimpItem *item = GIMP_ITEM (drawable);
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GimpImage *image = gimp_item_get_image (item);
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GimpChannel *mask = gimp_image_get_mask (image);
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GeglBuffer *drawable_buffer;
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gint x, y, width, height;
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gint offset_x, offset_y;
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gboolean active_components[MAX_CHANNELS];
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/* don't apply the mask to itself and don't apply an empty mask */
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if (GIMP_DRAWABLE (mask) == drawable || gimp_channel_is_empty (mask))
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mask = NULL;
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/* configure the active channel array */
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gimp_drawable_get_active_components (drawable, active_components);
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/* get the layer offsets */
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gimp_item_get_offset (item, &offset_x, &offset_y);
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/* make sure the image application coordinates are within drawable bounds */
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gimp_rectangle_intersect (dest_x, dest_y,
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buffer_region->width, buffer_region->height,
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0, 0,
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gimp_item_get_width (item),
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gimp_item_get_height (item),
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&x, &y, &width, &height);
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if (mask)
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{
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GimpItem *mask_item = GIMP_ITEM (mask);
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/* make sure coordinates are in mask bounds ...
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* we need to add the layer offset to transform coords
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* into the mask coordinate system
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*/
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gimp_rectangle_intersect (x, y, width, height,
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-offset_x, -offset_y,
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gimp_item_get_width (mask_item),
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gimp_item_get_height (mask_item),
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&x, &y, &width, &height);
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}
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/* If the calling procedure specified an undo step... */
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if (push_undo)
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gimp_drawable_push_undo (drawable, undo_desc,
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NULL, x, y, width, height);
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drawable_buffer = gimp_drawable_get_buffer (drawable);
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if (mask)
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{
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GeglBuffer *src_buffer;
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GeglBuffer *dest_buffer;
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src_buffer = gimp_drawable_get_buffer (GIMP_DRAWABLE (mask));
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dest_buffer = gegl_buffer_new (GEGL_RECTANGLE (0, 0, width, height),
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gegl_buffer_get_format (src_buffer));
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gegl_buffer_copy (src_buffer,
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GEGL_RECTANGLE (x + offset_x, y + offset_y,
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width, height),
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dest_buffer,
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GEGL_RECTANGLE (0, 0, 0, 0));
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gimp_gegl_combine_mask (mask_buffer, mask_buffer_region,
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dest_buffer, GEGL_RECTANGLE (0, 0, width, height),
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1.0);
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gimp_gegl_replace (buffer, buffer_region,
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drawable_buffer, GEGL_RECTANGLE (x, y, width, height),
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dest_buffer, GEGL_RECTANGLE (0, 0, width, height),
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drawable_buffer, GEGL_RECTANGLE (x, y, width, height),
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opacity,
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active_components);
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g_object_unref (dest_buffer);
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}
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else
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{
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gimp_gegl_replace (buffer, buffer_region,
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drawable_buffer, GEGL_RECTANGLE (x, y, width, height),
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mask_buffer, mask_buffer_region,
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drawable_buffer, GEGL_RECTANGLE (x, y, width, height),
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opacity,
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active_components);
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}
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}
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