1/**************************************************************************/
2/* bit_map.h */
3/**************************************************************************/
4/* This file is part of: */
5/* GODOT ENGINE */
6/* https://godotengine.org */
7/**************************************************************************/
8/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
9/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
10/* */
11/* Permission is hereby granted, free of charge, to any person obtaining */
12/* a copy of this software and associated documentation files (the */
13/* "Software"), to deal in the Software without restriction, including */
14/* without limitation the rights to use, copy, modify, merge, publish, */
15/* distribute, sublicense, and/or sell copies of the Software, and to */
16/* permit persons to whom the Software is furnished to do so, subject to */
17/* the following conditions: */
18/* */
19/* The above copyright notice and this permission notice shall be */
20/* included in all copies or substantial portions of the Software. */
21/* */
22/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
23/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
24/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
25/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
26/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
27/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
28/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
29/**************************************************************************/
30
31#ifndef BIT_MAP_H
32#define BIT_MAP_H
33
34#include "core/io/image.h"
35#include "core/io/resource.h"
36#include "core/io/resource_loader.h"
37
38template <typename T>
39class TypedArray;
40
41class BitMap : public Resource {
42 GDCLASS(BitMap, Resource);
43 OBJ_SAVE_TYPE(BitMap);
44
45 Vector<uint8_t> bitmask;
46 int width = 0;
47 int height = 0;
48
49 Vector<Vector<Vector2>> _march_square(const Rect2i &p_rect, const Point2i &p_start) const;
50
51 TypedArray<PackedVector2Array> _opaque_to_polygons_bind(const Rect2i &p_rect, float p_epsilon) const;
52
53protected:
54 void _set_data(const Dictionary &p_d);
55 Dictionary _get_data() const;
56
57 static void _bind_methods();
58
59public:
60 void create(const Size2i &p_size);
61 void create_from_image_alpha(const Ref<Image> &p_image, float p_threshold = 0.1);
62
63 void set_bitv(const Point2i &p_pos, bool p_value);
64 void set_bit(int p_x, int p_y, bool p_value);
65 void set_bit_rect(const Rect2i &p_rect, bool p_value);
66 bool get_bitv(const Point2i &p_pos) const;
67 bool get_bit(int p_x, int p_y) const;
68
69 int get_true_bit_count() const;
70
71 Size2i get_size() const;
72 void resize(const Size2i &p_new_size);
73
74 void grow_mask(int p_pixels, const Rect2i &p_rect);
75 void shrink_mask(int p_pixels, const Rect2i &p_rect);
76
77 void blit(const Vector2i &p_pos, const Ref<BitMap> &p_bitmap);
78 Ref<Image> convert_to_image() const;
79
80 Vector<Vector<Vector2>> clip_opaque_to_polygons(const Rect2i &p_rect, float p_epsilon = 2.0) const;
81
82 BitMap();
83};
84
85#endif // BIT_MAP_H
86