2a96d598c3
Largely based on a patch by Ell, with the enum type renamed and various small changes. Adds another axis of configurability to the existing layer mode madness, and is WIP too.
261 lines
9.7 KiB
C
261 lines
9.7 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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GimpLayerMode mode,
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GimpLayerCompositeMode composite,
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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->composite_mode = composite;
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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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GEGL_ABYSS_NONE,
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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, FALSE, FALSE);
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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_opacity (applicator, opacity);
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gimp_applicator_set_mode (applicator, mode, composite);
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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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GEGL_ABYSS_NONE,
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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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