7c7a1b6383
We don't support subpixel source sampling, so there's no use in pretending that we do. Demoting everything to int as soon as possible helps guarantee that these values are at least rounded properly and in fewer places. Make sure we always round coordinates down, and not toward zero. Keep using floats only in the signatures of the relevant PDB functions.
110 lines
4.7 KiB
C
110 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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* 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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#ifndef __GIMP_SOURCE_CORE_H__
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#define __GIMP_SOURCE_CORE_H__
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#include "gimpbrushcore.h"
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#define GIMP_TYPE_SOURCE_CORE (gimp_source_core_get_type ())
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#define GIMP_SOURCE_CORE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_SOURCE_CORE, GimpSourceCore))
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#define GIMP_SOURCE_CORE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_SOURCE_CORE, GimpSourceCoreClass))
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#define GIMP_IS_SOURCE_CORE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_SOURCE_CORE))
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#define GIMP_IS_SOURCE_CORE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_SOURCE_CORE))
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#define GIMP_SOURCE_CORE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_SOURCE_CORE, GimpSourceCoreClass))
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typedef struct _GimpSourceCoreClass GimpSourceCoreClass;
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struct _GimpSourceCore
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{
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GimpBrushCore parent_instance;
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gboolean set_source;
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GimpDrawable *src_drawable;
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gint src_x;
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gint src_y;
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gint orig_src_x;
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gint orig_src_y;
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gint offset_x;
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gint offset_y;
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gboolean first_stroke;
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};
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struct _GimpSourceCoreClass
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{
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GimpBrushCoreClass parent_class;
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gboolean (* use_source) (GimpSourceCore *source_core,
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GimpSourceOptions *options);
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GeglBuffer * (* get_source) (GimpSourceCore *source_core,
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GimpDrawable *drawable,
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GimpPaintOptions *paint_options,
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GimpPickable *src_pickable,
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gint src_offset_x,
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gint src_offset_y,
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GeglBuffer *paint_buffer,
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gint paint_buffer_x,
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gint paint_buffer_y,
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/* offsets *into* the paint_buffer: */
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gint *paint_area_offset_x,
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gint *paint_area_offset_y,
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gint *paint_area_width,
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gint *paint_area_height,
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GeglRectangle *src_rect);
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void (* motion) (GimpSourceCore *source_core,
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GimpDrawable *drawable,
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GimpPaintOptions *paint_options,
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const GimpCoords *coords,
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GeglNode *op,
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gdouble opacity,
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GimpPickable *src_pickable,
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GeglBuffer *src_buffer,
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GeglRectangle *src_rect,
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gint src_offset_x,
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gint src_offset_y,
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GeglBuffer *paint_buffer,
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gint paint_buffer_x,
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gint paint_buffer_y,
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/* offsets *into* the paint_buffer: */
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gint paint_area_offset_x,
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gint paint_area_offset_y,
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gint paint_area_width,
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gint paint_area_height);
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};
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GType gimp_source_core_get_type (void) G_GNUC_CONST;
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gboolean gimp_source_core_use_source (GimpSourceCore *source_core,
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GimpSourceOptions *options);
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/* TEMP HACK */
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void gimp_source_core_motion (GimpSourceCore *source_core,
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GimpDrawable *drawable,
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GimpPaintOptions *paint_options,
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GimpSymmetry *sym);
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#endif /* __GIMP_SOURCE_CORE_H__ */
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