1/**
2 * Copyright (c) 2006-2023 LOVE Development Team
3 *
4 * This software is provided 'as-is', without any express or implied
5 * warranty. In no event will the authors be held liable for any damages
6 * arising from the use of this software.
7 *
8 * Permission is granted to anyone to use this software for any purpose,
9 * including commercial applications, and to alter it and redistribute it
10 * freely, subject to the following restrictions:
11 *
12 * 1. The origin of this software must not be misrepresented; you must not
13 * claim that you wrote the original software. If you use this software
14 * in a product, an acknowledgment in the product documentation would be
15 * appreciated but is not required.
16 * 2. Altered source versions must be plainly marked as such, and must not be
17 * misrepresented as being the original software.
18 * 3. This notice may not be removed or altered from any source distribution.
19 **/
20
21#ifndef LOVE_FONT_BMFONT_RASTERIZER_H
22#define LOVE_FONT_BMFONT_RASTERIZER_H
23
24// LOVE
25#include "common/config.h"
26#include "Rasterizer.h"
27#include "image/ImageData.h"
28
29// C++
30#include <unordered_map>
31#include <vector>
32
33namespace love
34{
35namespace font
36{
37
38/**
39 * Rasterizer for BMFont bitmap fonts.
40 **/
41class BMFontRasterizer : public Rasterizer
42{
43public:
44
45 BMFontRasterizer(love::filesystem::FileData *fontdef, const std::vector<image::ImageData *> &imagelist, float dpiscale);
46 virtual ~BMFontRasterizer();
47
48 // Implements Rasterizer.
49 int getLineHeight() const override;
50 GlyphData *getGlyphData(uint32 glyph) const override;
51 int getGlyphCount() const override;
52 bool hasGlyph(uint32 glyph) const override;
53 float getKerning(uint32 leftglyph, uint32 rightglyph) const override;
54 DataType getDataType() const override;
55
56 static bool accepts(love::filesystem::FileData *fontdef);
57
58private:
59
60 struct BMFontCharacter
61 {
62 int x;
63 int y;
64 int page;
65 GlyphMetrics metrics;
66 };
67
68 void parseConfig(const std::string &config);
69
70 std::string fontFolder;
71
72 // Image pages, indexed by their page id.
73 std::unordered_map<int, StrongRef<image::ImageData>> images;
74
75 // Glyph characters, indexed by their glyph id.
76 std::unordered_map<uint32, BMFontCharacter> characters;
77
78 // Kerning information, indexed by two (packed) characters.
79 std::unordered_map<uint64, int> kerning;
80
81 int fontSize;
82 bool unicode;
83
84 int lineHeight;
85
86}; // BMFontRasterizer
87
88} // font
89} // love
90
91#endif // LOVE_FONT_BMFONT_RASTERIZER_H
92