blob: 4ebb1acb9893d92c0e176aca3acdf7b7adc83307 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
#pragma once
#include "base/shared_buffer_manager.hpp"
#include "base/string_utils.hpp"
#include <string>
#include <vector>
#include <functional>
namespace dp
{
uint32_t constexpr kSdfBorder = 4;
struct UnicodeBlock;
class GlyphManager
{
public:
static const int kDynamicGlyphSize;
struct Params
{
std::string m_uniBlocks;
std::string m_whitelist;
std::string m_blacklist;
std::vector<std::string> m_fonts;
uint32_t m_baseGlyphHeight = 22;
uint32_t m_sdfScale = 4;
};
struct GlyphMetrics
{
float m_xAdvance;
float m_yAdvance;
float m_xOffset;
float m_yOffset;
bool m_isValid;
};
struct GlyphImage
{
~GlyphImage()
{
ASSERT(!m_data.unique(), ("Probably you forgot to call Destroy()"));
}
void Destroy()
{
if (m_data != nullptr)
{
SharedBufferManager::instance().freeSharedBuffer(m_data->size(), m_data);
m_data = nullptr;
}
}
uint32_t m_width;
uint32_t m_height;
uint32_t m_bitmapRows;
int m_bitmapPitch;
SharedBufferManager::shared_buffer_ptr_t m_data;
};
struct Glyph
{
GlyphMetrics m_metrics;
GlyphImage m_image;
int m_fontIndex;
strings::UniChar m_code;
int m_fixedSize;
};
explicit GlyphManager(Params const & params);
~GlyphManager();
Glyph GetGlyph(strings::UniChar unicodePoints, int fixedHeight);
void MarkGlyphReady(Glyph const & glyph);
bool AreGlyphsReady(strings::UniString const & str, int fixedSize) const;
using TUniBlockCallback = std::function<void(strings::UniChar start, strings::UniChar end)>;
void ForEachUnicodeBlock(TUniBlockCallback const & fn) const;
Glyph GetInvalidGlyph(int fixedSize) const;
uint32_t GetBaseGlyphHeight() const;
uint32_t GetSdfScale() const;
static Glyph GenerateGlyph(Glyph const & glyph, uint32_t sdfScale);
private:
int GetFontIndex(strings::UniChar unicodePoint);
// Immutable version can be called from any thread and doesn't require internal synchronization.
int GetFontIndexImmutable(strings::UniChar unicodePoint) const;
int FindFontIndexInBlock(UnicodeBlock const & block, strings::UniChar unicodePoint) const;
private:
struct Impl;
Impl * m_impl;
};
} // namespace dp
|
