646c804c04
In GimpOperationLayerMode, when the op has a mask connected, and we're processing an area outside the mask bounds, set the op's opacity to 0, so that the backdrop shows through. The actual process() function gets a NULL mask pointer in this case, and so would composite the layer as if it had no mask, exposing areas that should be masked out. Add a GimpOperationLayerMode::parent_process() function, which subclasses can override instead of GeglOperation::process(), and make sure to update the GimpOperationLayerMode::opacity field before calling this function (and, subsequently, before calling GimpOperationLayerMode::process()). Clean up the rest of the fields, and adjust the rest of the code.
92 lines
4.2 KiB
C
92 lines
4.2 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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* gimpoperationlayermode.h
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* Copyright (C) 2008 Michael Natterer <mitch@gimp.org>
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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 <https://www.gnu.org/licenses/>.
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*/
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#ifndef __GIMP_OPERATION_LAYER_MODE_H__
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#define __GIMP_OPERATION_LAYER_MODE_H__
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#include <gegl-plugin.h>
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#define GIMP_TYPE_OPERATION_LAYER_MODE (gimp_operation_layer_mode_get_type ())
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#define GIMP_OPERATION_LAYER_MODE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_OPERATION_LAYER_MODE, GimpOperationLayerMode))
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#define GIMP_OPERATION_LAYER_MODE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_OPERATION_LAYER_MODE, GimpOperationLayerModeClass))
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#define GIMP_IS_OPERATION_LAYER_MODE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_OPERATION_LAYER_MODE))
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#define GIMP_IS_OPERATION_LAYER_MODE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_OPERATION_LAYER_MODE))
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#define GIMP_OPERATION_LAYER_MODE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_OPERATION_LAYER_MODE, GimpOperationLayerModeClass))
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typedef struct _GimpOperationLayerModeClass GimpOperationLayerModeClass;
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struct _GimpOperationLayerMode
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{
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GeglOperationPointComposer3 parent_instance;
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GimpLayerMode layer_mode;
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gdouble opacity;
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GimpLayerColorSpace blend_space;
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GimpLayerColorSpace composite_space;
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GimpLayerCompositeMode composite_mode;
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const Babl *cached_fish_format;
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const Babl *space_fish[3 /* from */][3 /* to */];
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gdouble prop_opacity;
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GimpLayerCompositeMode prop_composite_mode;
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GimpLayerModeFunc function;
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GimpLayerModeBlendFunc blend_function;
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gboolean is_last_node;
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gboolean has_mask;
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};
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struct _GimpOperationLayerModeClass
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{
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GeglOperationPointComposer3Class parent_class;
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/* virtual functions */
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gboolean (* parent_process) (GeglOperation *operation,
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GeglOperationContext *context,
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const gchar *output_prop,
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const GeglRectangle *result,
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gint level);
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gboolean (* process) (GeglOperation *operation,
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void *in,
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void *aux,
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void *mask,
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void *out,
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glong samples,
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const GeglRectangle *roi,
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gint level);
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/* Returns the composite region (any combination of the layer and the
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* backdrop) that the layer mode affects. Most modes only affect the
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* overlapping region, and don't need to override this function.
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*/
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GimpLayerCompositeRegion (* get_affected_region) (GimpOperationLayerMode *layer_mode);
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};
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GType gimp_operation_layer_mode_get_type (void) G_GNUC_CONST;
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GimpLayerCompositeRegion gimp_operation_layer_mode_get_affected_region (GimpOperationLayerMode *layer_mode);
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#endif /* __GIMP_OPERATION_LAYER_MODE_H__ */
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