157 lines
6.8 KiB
C
157 lines
6.8 KiB
C
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/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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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 __PIKA_BRUSH_CORE_H__
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#define __PIKA_BRUSH_CORE_H__
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#include "pikapaintcore.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 PIKA_TYPE_BRUSH_CORE (pika_brush_core_get_type ())
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#define PIKA_BRUSH_CORE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), PIKA_TYPE_BRUSH_CORE, PikaBrushCore))
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#define PIKA_BRUSH_CORE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PIKA_TYPE_BRUSH_CORE, PikaBrushCoreClass))
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#define PIKA_IS_BRUSH_CORE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), PIKA_TYPE_BRUSH_CORE))
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#define PIKA_IS_BRUSH_CORE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PIKA_TYPE_BRUSH_CORE))
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#define PIKA_BRUSH_CORE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PIKA_TYPE_BRUSH_CORE, PikaBrushCoreClass))
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typedef struct _PikaBrushCoreClass PikaBrushCoreClass;
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struct _PikaBrushCore
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{
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PikaPaintCore parent_instance;
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PikaBrush *main_brush;
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PikaBrush *brush;
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PikaDynamics *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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PikaTempBuf *pressure_brush;
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PikaTempBuf *solid_brushes[BRUSH_CORE_SOLID_SUBSAMPLE][BRUSH_CORE_SOLID_SUBSAMPLE];
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const PikaTempBuf *last_solid_brush_mask;
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gboolean solid_cache_invalid;
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const PikaTempBuf *transform_brush;
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const PikaTempBuf *transform_pixmap;
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PikaTempBuf *subsample_brushes[BRUSH_CORE_SUBSAMPLE + 1][BRUSH_CORE_SUBSAMPLE + 1];
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const PikaTempBuf *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 _PikaBrushCoreClass
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{
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PikaPaintCoreClass 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) (PikaBrushCore *core,
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PikaBrush *brush);
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void (* set_dynamics) (PikaBrushCore *core,
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PikaDynamics *brush);
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};
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GType pika_brush_core_get_type (void) G_GNUC_CONST;
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void pika_brush_core_set_brush (PikaBrushCore *core,
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PikaBrush *brush);
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void pika_brush_core_set_dynamics (PikaBrushCore *core,
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PikaDynamics *dynamics);
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void pika_brush_core_paste_canvas (PikaBrushCore *core,
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PikaDrawable *drawable,
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const PikaCoords *coords,
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gdouble brush_opacity,
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gdouble image_opacity,
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PikaLayerMode paint_mode,
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PikaBrushApplicationMode brush_hardness,
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gdouble dynamic_hardness,
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PikaPaintApplicationMode mode);
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void pika_brush_core_replace_canvas (PikaBrushCore *core,
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PikaDrawable *drawable,
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const PikaCoords *coords,
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gdouble brush_opacity,
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gdouble image_opacity,
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PikaBrushApplicationMode brush_hardness,
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gdouble dynamic_hardness,
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PikaPaintApplicationMode mode);
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void pika_brush_core_color_area_with_pixmap
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(PikaBrushCore *core,
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PikaDrawable *drawable,
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const PikaCoords *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 PikaTempBuf * pika_brush_core_get_brush_mask
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(PikaBrushCore *core,
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const PikaCoords *coords,
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PikaBrushApplicationMode brush_hardness,
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gdouble dynamic_hardness);
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const PikaTempBuf * pika_brush_core_get_brush_pixmap
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(PikaBrushCore *core);
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void pika_brush_core_eval_transform_dynamics
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(PikaBrushCore *core,
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PikaImage *image,
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PikaPaintOptions *paint_options,
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const PikaCoords *coords);
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void pika_brush_core_eval_transform_symmetry
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(PikaBrushCore *core,
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PikaSymmetry *symmetry,
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gint stroke);
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#endif /* __PIKA_BRUSH_CORE_H__ */
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