e961b13ae6
Use gimp_symmetry_get_transform() instead of
gimp_symmetry_get_operation() throughout the paint code, where
possible. This allows us to combine the symmetry transform with
the ordinary brush transform, simplifying the code, improving
performance, and avoiding multiple resamplings. This also fixes
the paint-buffer size when using mandala symmetry with non-round
brushes, avoiding artifacts.
(cherry picked from commit b63af476bd)
153 lines
6.6 KiB
C
153 lines
6.6 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 <https://www.gnu.org/licenses/>.
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*/
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#ifndef __GIMP_BRUSH_CORE_H__
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#define __GIMP_BRUSH_CORE_H__
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#include "gimppaintcore.h"
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#define BRUSH_CORE_SUBSAMPLE 4
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#define BRUSH_CORE_SOLID_SUBSAMPLE 2
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#define BRUSH_CORE_JITTER_LUTSIZE 360
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#define GIMP_TYPE_BRUSH_CORE (gimp_brush_core_get_type ())
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#define GIMP_BRUSH_CORE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_BRUSH_CORE, GimpBrushCore))
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#define GIMP_BRUSH_CORE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_BRUSH_CORE, GimpBrushCoreClass))
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#define GIMP_IS_BRUSH_CORE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_BRUSH_CORE))
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#define GIMP_IS_BRUSH_CORE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_BRUSH_CORE))
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#define GIMP_BRUSH_CORE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_BRUSH_CORE, GimpBrushCoreClass))
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typedef struct _GimpBrushCoreClass GimpBrushCoreClass;
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struct _GimpBrushCore
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{
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GimpPaintCore parent_instance;
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GimpBrush *main_brush;
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GimpBrush *brush;
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GimpDynamics *dynamics;
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gdouble spacing;
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gdouble scale;
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gdouble aspect_ratio;
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gdouble angle;
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gboolean reflect;
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gdouble hardness;
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gdouble symmetry_angle;
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gboolean symmetry_reflect;
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/* brush buffers */
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GimpTempBuf *pressure_brush;
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GimpTempBuf *solid_brushes[BRUSH_CORE_SOLID_SUBSAMPLE][BRUSH_CORE_SOLID_SUBSAMPLE];
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const GimpTempBuf *last_solid_brush_mask;
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gboolean solid_cache_invalid;
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const GimpTempBuf *transform_brush;
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const GimpTempBuf *transform_pixmap;
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GimpTempBuf *subsample_brushes[BRUSH_CORE_SUBSAMPLE + 1][BRUSH_CORE_SUBSAMPLE + 1];
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const GimpTempBuf *last_subsample_brush_mask;
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gboolean subsample_cache_invalid;
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gdouble jitter;
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gdouble jitter_lut_x[BRUSH_CORE_JITTER_LUTSIZE];
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gdouble jitter_lut_y[BRUSH_CORE_JITTER_LUTSIZE];
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GRand *rand;
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};
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struct _GimpBrushCoreClass
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{
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GimpPaintCoreClass parent_class;
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/* Set for tools that don't mind if the brush changes while painting */
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gboolean handles_changing_brush;
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/* Set for tools that don't mind if the brush scales while painting */
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gboolean handles_transforming_brush;
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/* Set for tools that don't mind if the brush scales mid stroke */
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gboolean handles_dynamic_transforming_brush;
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void (* set_brush) (GimpBrushCore *core,
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GimpBrush *brush);
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void (* set_dynamics) (GimpBrushCore *core,
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GimpDynamics *brush);
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};
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GType gimp_brush_core_get_type (void) G_GNUC_CONST;
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void gimp_brush_core_set_brush (GimpBrushCore *core,
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GimpBrush *brush);
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void gimp_brush_core_set_dynamics (GimpBrushCore *core,
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GimpDynamics *dynamics);
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void gimp_brush_core_paste_canvas (GimpBrushCore *core,
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GimpDrawable *drawable,
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const GimpCoords *coords,
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gdouble brush_opacity,
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gdouble image_opacity,
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GimpLayerMode paint_mode,
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GimpBrushApplicationMode brush_hardness,
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gdouble dynamic_hardness,
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GimpPaintApplicationMode mode);
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void gimp_brush_core_replace_canvas (GimpBrushCore *core,
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GimpDrawable *drawable,
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const GimpCoords *coords,
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gdouble brush_opacity,
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gdouble image_opacity,
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GimpBrushApplicationMode brush_hardness,
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gdouble dynamic_hardness,
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GimpPaintApplicationMode mode);
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void gimp_brush_core_color_area_with_pixmap
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(GimpBrushCore *core,
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GimpDrawable *drawable,
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const GimpCoords *coords,
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GeglBuffer *area,
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gint area_x,
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gint area_y,
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gboolean apply_mask);
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const GimpTempBuf * gimp_brush_core_get_brush_mask
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(GimpBrushCore *core,
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const GimpCoords *coords,
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GimpBrushApplicationMode brush_hardness,
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gdouble dynamic_hardness);
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const GimpTempBuf * gimp_brush_core_get_brush_pixmap
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(GimpBrushCore *core);
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void gimp_brush_core_eval_transform_dynamics
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(GimpBrushCore *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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void gimp_brush_core_eval_transform_symmetry
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(GimpBrushCore *core,
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GimpSymmetry *symmetry,
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gint stroke);
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#endif /* __GIMP_BRUSH_CORE_H__ */
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