88388467cc
because it would require really evil hacks to honor these properties in the gegl projection if they were on the mask, and because they actually belong to the layer.
154 lines
4.7 KiB
C
154 lines
4.7 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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* gimplayer-project.h
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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 "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 "gimpimage.h"
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#include "gimplayer.h"
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#include "gimplayer-project.h"
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#include "gimplayermask.h"
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void
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gimp_layer_project_region (GimpDrawable *drawable,
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gint x,
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gint y,
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gint width,
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gint height,
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PixelRegion *projPR,
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gboolean combine)
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{
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GimpLayer *layer = GIMP_LAYER (drawable);
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GimpLayerMask *mask = gimp_layer_get_mask (layer);
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if (mask && gimp_layer_get_show_mask (layer))
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{
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/* If we're showing the layer mask instead of the layer... */
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PixelRegion srcPR;
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TileManager *temp_tiles;
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gimp_drawable_init_src_region (GIMP_DRAWABLE (mask), &srcPR,
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x, y, width, height,
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&temp_tiles);
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copy_gray_to_region (&srcPR, projPR);
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if (temp_tiles)
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tile_manager_unref (temp_tiles);
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}
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else
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{
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/* Otherwise, normal */
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GimpImage *image = gimp_item_get_image (GIMP_ITEM (layer));
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PixelRegion srcPR;
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PixelRegion maskPR;
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PixelRegion *mask_pr = NULL;
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const guchar *colormap = NULL;
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TileManager *temp_mask_tiles = NULL;
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TileManager *temp_layer_tiles = NULL;
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InitialMode initial_mode;
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CombinationMode combination_mode;
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gboolean visible[MAX_CHANNELS];
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gimp_drawable_init_src_region (drawable, &srcPR,
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x, y, width, height,
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&temp_layer_tiles);
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if (mask && gimp_layer_get_apply_mask (layer))
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{
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gimp_drawable_init_src_region (GIMP_DRAWABLE (mask), &maskPR,
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x, y, width, height,
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&temp_mask_tiles);
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mask_pr = &maskPR;
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}
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/* Based on the type of the layer, project the layer onto the
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* projection image...
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*/
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switch (gimp_drawable_type (drawable))
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{
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case GIMP_RGB_IMAGE:
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case GIMP_GRAY_IMAGE:
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initial_mode = INITIAL_INTENSITY;
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combination_mode = COMBINE_INTEN_A_INTEN;
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break;
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case GIMP_RGBA_IMAGE:
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case GIMP_GRAYA_IMAGE:
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initial_mode = INITIAL_INTENSITY_ALPHA;
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combination_mode = COMBINE_INTEN_A_INTEN_A;
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break;
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case GIMP_INDEXED_IMAGE:
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colormap = gimp_drawable_get_colormap (drawable),
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initial_mode = INITIAL_INDEXED;
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combination_mode = COMBINE_INTEN_A_INDEXED;
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break;
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case GIMP_INDEXEDA_IMAGE:
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colormap = gimp_drawable_get_colormap (drawable),
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initial_mode = INITIAL_INDEXED_ALPHA;
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combination_mode = COMBINE_INTEN_A_INDEXED_A;
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break;
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default:
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g_assert_not_reached ();
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break;
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}
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gimp_image_get_visible_array (image, visible);
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if (combine)
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{
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combine_regions (projPR, &srcPR, projPR, mask_pr,
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colormap,
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gimp_layer_get_opacity (layer) * 255.999,
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gimp_layer_get_mode (layer),
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visible,
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combination_mode);
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}
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else
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{
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initial_region (&srcPR, projPR, mask_pr,
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colormap,
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gimp_layer_get_opacity (layer) * 255.999,
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gimp_layer_get_mode (layer),
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visible,
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initial_mode);
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}
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if (temp_layer_tiles)
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tile_manager_unref (temp_layer_tiles);
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if (temp_mask_tiles)
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tile_manager_unref (temp_mask_tiles);
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}
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}
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