mirror of
https://gitlab.gnome.org/GNOME/gimp
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388 lines
14 KiB
C
388 lines
14 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 <gegl.h>
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#include "libgimpbase/gimpbase.h"
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#include "core-types.h"
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#include "base/pixel-region.h"
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#include "base/tile-manager.h"
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#include "paint-funcs/paint-funcs.h"
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#include "gegl/gimp-gegl-nodes.h"
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#include "gegl/gimp-gegl-utils.h"
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#include "gimp.h"
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#include "gimp-apply-operation.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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GeglBuffer *dest_buffer,
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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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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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gimp_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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if (FALSE /* XXX gimp_use_gegl (image->gimp) && ! dest_buffer */)
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{
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GeglBuffer *mask_buffer = NULL;
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GeglNode *apply;
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if (mask)
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mask_buffer = gimp_drawable_get_buffer (GIMP_DRAWABLE (mask));
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dest_buffer = gimp_drawable_get_buffer (drawable);
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apply = gimp_gegl_create_apply_buffer_node (buffer,
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base_x - buffer_region->x,
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base_y - buffer_region->y,
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0,
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0,
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0,
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0,
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mask_buffer,
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-offset_x,
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-offset_y,
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opacity,
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mode);
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gimp_apply_operation (base_buffer, NULL, NULL,
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apply,
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dest_buffer,
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GEGL_RECTANGLE (x, y, width, height));
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g_object_unref (apply);
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}
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else
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{
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PixelRegion src1PR, src2PR, destPR;
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CombinationMode operation;
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gboolean active_components[MAX_CHANNELS];
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if (gimp_gegl_buffer_get_temp_buf (buffer))
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{
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pixel_region_init_temp_buf (&src2PR,
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gimp_gegl_buffer_get_temp_buf (buffer),
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buffer_region->x, buffer_region->y,
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buffer_region->width, buffer_region->height);
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}
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else
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{
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pixel_region_init (&src2PR, gimp_gegl_buffer_get_tiles (buffer),
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buffer_region->x, buffer_region->y,
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buffer_region->width, buffer_region->height,
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FALSE);
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}
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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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/* determine what sort of operation is being attempted and
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* if it's actually legal...
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*/
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operation = gimp_image_get_combination_mode (gimp_drawable_type (drawable),
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src2PR.bytes);
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if (operation == -1)
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{
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g_warning ("%s: illegal parameters.", G_STRFUNC);
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return;
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}
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/* configure the pixel regions */
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pixel_region_init (&src1PR, gimp_gegl_buffer_get_tiles (base_buffer),
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x, y, width, height,
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FALSE);
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pixel_region_resize (&src2PR,
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src2PR.x + (x - base_x), src2PR.y + (y - base_y),
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width, height);
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if (dest_buffer)
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{
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pixel_region_init (&destPR, gimp_gegl_buffer_get_tiles (dest_buffer),
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dest_x, dest_y,
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buffer_region->width, buffer_region->height,
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TRUE);
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}
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else
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{
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pixel_region_init (&destPR, gimp_drawable_get_tiles (drawable),
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x, y, width, height,
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TRUE);
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}
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if (mask)
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{
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PixelRegion maskPR;
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pixel_region_init (&maskPR,
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gimp_drawable_get_tiles (GIMP_DRAWABLE (mask)),
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x + offset_x,
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y + offset_y,
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width, height,
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FALSE);
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combine_regions (&src1PR, &src2PR, &destPR, &maskPR, NULL,
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opacity * 255.999,
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mode,
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active_components,
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operation);
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}
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else
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{
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combine_regions (&src1PR, &src2PR, &destPR, NULL, NULL,
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opacity * 255.999,
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mode,
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active_components,
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operation);
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}
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}
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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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PixelRegion *maskPR,
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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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GimpTempBuf *temp_buf;
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PixelRegion src2PR;
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gint x, y, width, height;
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gint offset_x, offset_y;
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PixelRegion src1PR, destPR;
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CombinationMode operation;
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gboolean active_components[MAX_CHANNELS];
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temp_buf = gimp_gegl_buffer_get_temp_buf (buffer);
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if (temp_buf)
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{
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pixel_region_init_temp_buf (&src2PR, temp_buf,
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buffer_region->x, buffer_region->y,
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buffer_region->width, buffer_region->height);
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}
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else
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{
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pixel_region_init (&src2PR, gimp_gegl_buffer_get_tiles (buffer),
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buffer_region->x, buffer_region->y,
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buffer_region->width, buffer_region->height,
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FALSE);
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}
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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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/* determine what sort of operation is being attempted and
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* if it's actually legal...
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*/
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operation = gimp_image_get_combination_mode (gimp_drawable_type (drawable),
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src2PR.bytes);
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if (operation == -1)
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{
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g_warning ("%s: illegal parameters.", G_STRFUNC);
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return;
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}
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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, src2PR.w, src2PR.h,
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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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/* configure the pixel regions */
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pixel_region_init (&src1PR, gimp_drawable_get_tiles (drawable),
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x, y, width, height,
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FALSE);
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pixel_region_init (&destPR, gimp_drawable_get_tiles (drawable),
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x, y, width, height,
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TRUE);
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pixel_region_resize (&src2PR,
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src2PR.x + (x - dest_x), src2PR.y + (y - dest_y),
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width, height);
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if (mask)
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{
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PixelRegion tempPR;
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GimpTempBuf *temp_buf;
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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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temp_buf = gimp_temp_buf_new (width, height,
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gegl_buffer_get_format (src_buffer));
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dest_buffer = gimp_temp_buf_create_buffer (temp_buf);
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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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g_object_unref (dest_buffer);
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pixel_region_init_temp_buf (&tempPR, temp_buf, 0, 0, width, height);
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apply_mask_to_region (&tempPR, maskPR, OPAQUE_OPACITY);
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pixel_region_init_temp_buf (&tempPR, temp_buf, 0, 0, width, height);
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combine_regions_replace (&src1PR, &src2PR, &destPR, &tempPR, NULL,
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opacity * 255.999,
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active_components,
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operation);
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gimp_temp_buf_unref (temp_buf);
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}
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else
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{
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combine_regions_replace (&src1PR, &src2PR, &destPR, maskPR, NULL,
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opacity * 255.999,
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active_components,
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operation);
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}
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}
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