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
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
|
#include "drape/texture_manager.hpp"
#include "drape/symbols_texture.hpp"
#include "drape/font_texture.hpp"
#include "drape/stipple_pen_resource.hpp"
#include "drape/texture_of_colors.hpp"
#include "drape/glfunctions.hpp"
#include "platform/platform.hpp"
#include "coding/file_name_utils.hpp"
#include "base/stl_add.hpp"
#include "std/vector.hpp"
#include "std/bind.hpp"
namespace dp
{
uint32_t const STIPPLE_TEXTURE_SIZE = 1024;
uint32_t const COLOR_TEXTURE_SIZE = 1024;
bool TextureManager::BaseRegion::IsValid() const
{
return !m_info.IsNull() && !m_texture.IsNull();
}
void TextureManager::BaseRegion::SetResourceInfo(RefPointer<Texture::ResourceInfo> info)
{
m_info = info;
}
void TextureManager::BaseRegion::SetTexture(RefPointer<Texture> texture)
{
m_texture = texture;
}
m2::PointU TextureManager::BaseRegion::GetPixelSize() const
{
ASSERT(IsValid(), ());
m2::RectF const & texRect = m_info->GetTexRect();
return m2::PointU(ceil(texRect.SizeX() * m_texture->GetWidth()),
ceil(texRect.SizeY() * m_texture->GetHeight()));
}
uint32_t TextureManager::BaseRegion::GetPixelHeight() const
{
return ceil(m_info->GetTexRect().SizeY() * m_texture->GetHeight());
}
m2::RectF const & TextureManager::BaseRegion::GetTexRect() const
{
return m_info->GetTexRect();
}
TextureManager::GlyphRegion::GlyphRegion()
: BaseRegion()
{
}
float TextureManager::GlyphRegion::GetOffsetX() const
{
ASSERT(m_info->GetType() == Texture::Glyph, ());
GlyphInfo const * info = static_cast<GlyphInfo const *>(m_info.GetRaw());
return info->GetMetrics().m_xOffset;
}
float TextureManager::GlyphRegion::GetOffsetY() const
{
ASSERT(m_info->GetType() == Texture::Glyph, ());
GlyphInfo const * info = static_cast<GlyphInfo const *>(m_info.GetRaw());
return info->GetMetrics().m_yOffset;
}
float TextureManager::GlyphRegion::GetAdvanceX() const
{
ASSERT(m_info->GetType() == Texture::Glyph, ());
GlyphInfo const * info = static_cast<GlyphInfo const *>(m_info.GetRaw());
return info->GetMetrics().m_xAdvance;
}
float TextureManager::GlyphRegion::GetAdvanceY() const
{
ASSERT(m_info->GetType() == Texture::Glyph, ());
GlyphInfo const * info = static_cast<GlyphInfo const *>(m_info.GetRaw());
return info->GetMetrics().m_yAdvance;
}
uint32_t TextureManager::StippleRegion::GetMaskPixelLength() const
{
ASSERT(m_info->GetType() == Texture::StipplePen, ());
return static_cast<StipplePenResourceInfo const *>(m_info.GetRaw())->GetMaskPixelLength();
}
uint32_t TextureManager::StippleRegion::GetPatternPixelLength() const
{
ASSERT(m_info->GetType() == Texture::StipplePen, ());
return static_cast<StipplePenResourceInfo const *>(m_info.GetRaw())->GetPatternPixelLength();
}
void TextureManager::UpdateDynamicTextures()
{
m_colorTexture->UpdateState();
m_stipplePenTexture->UpdateState();
for_each(m_glyphGroups.begin(), m_glyphGroups.end(), [](GlyphGroup & g)
{
if (!g.m_texture.IsNull())
g.m_texture->UpdateState();
});
for_each(m_hybridGlyphGroups.begin(), m_hybridGlyphGroups.end(), [](MasterPointer<Texture> texture)
{
texture->UpdateState();
});
}
void TextureManager::AllocateGlyphTexture(TextureManager::GlyphGroup & group) const
{
group.m_texture.Reset(new FontTexture(m2::PointU(m_maxTextureSize, m_maxTextureSize), m_glyphManager.GetRefPointer()));
}
void TextureManager::Init(Params const & params)
{
GLFunctions::glPixelStore(gl_const::GLUnpackAlignment, 1);
SymbolsTexture * symbols = new SymbolsTexture();
symbols->Load(my::JoinFoldersToPath(string("resources-") + params.m_resPrefix, "symbols"));
m_symbolTexture.Reset(symbols);
m_stipplePenTexture.Reset(new StipplePenTexture(m2::PointU(STIPPLE_TEXTURE_SIZE, STIPPLE_TEXTURE_SIZE)));
m_colorTexture.Reset(new ColorTexture(m2::PointU(COLOR_TEXTURE_SIZE, COLOR_TEXTURE_SIZE)));
m_glyphManager.Reset(new GlyphManager(params.m_glyphMngParams));
m_maxTextureSize = GLFunctions::glGetInteger(gl_const::GLMaxTextureSize);
uint32_t const textureSquare = m_maxTextureSize * m_maxTextureSize;
uint32_t const baseGlyphHeight = params.m_glyphMngParams.m_baseGlyphHeight;
uint32_t const avarageGlyphSquare = baseGlyphHeight * baseGlyphHeight;
m_glyphGroups.push_back(GlyphGroup());
uint32_t glyphCount = ceil(0.9 * textureSquare / avarageGlyphSquare);
m_glyphManager->ForEachUnicodeBlock([this, glyphCount](strings::UniChar const & start, strings::UniChar const & end)
{
if (m_glyphGroups.empty())
{
m_glyphGroups.push_back(GlyphGroup(start, end));
return;
}
GlyphGroup & group = m_glyphGroups.back();
ASSERT_LESS_OR_EQUAL(group.m_endChar, start, ());
if (end - group.m_startChar < glyphCount)
group.m_endChar = end;
else
m_glyphGroups.push_back(GlyphGroup(start, end));
});
}
void TextureManager::Release()
{
m_symbolTexture.Destroy();
m_stipplePenTexture.Destroy();
m_colorTexture.Destroy();
DeleteRange(m_glyphGroups, [](GlyphGroup & g)
{
g.m_texture.Destroy();
});
DeleteRange(m_hybridGlyphGroups, MasterPointerDeleter());
}
void TextureManager::GetSymbolRegion(string const & symbolName, SymbolRegion & region) const
{
region.SetResourceInfo(m_symbolTexture->FindResource(SymbolsTexture::SymbolKey(symbolName)));
region.SetTexture(m_symbolTexture.GetRefPointer());
ASSERT(region.IsValid(), ());
}
void TextureManager::GetStippleRegion(TStipplePattern const & pen, StippleRegion & region) const
{
region.SetResourceInfo(m_stipplePenTexture->FindResource(StipplePenKey(pen)));
region.SetTexture(m_stipplePenTexture.GetRefPointer());
ASSERT(region.IsValid(), ());
}
void TextureManager::GetColorRegion(Color const & color, ColorRegion & region) const
{
region.SetResourceInfo(m_colorTexture->FindResource(ColorKey(color)));
region.SetTexture(m_colorTexture.GetRefPointer());
ASSERT(region.IsValid(), ());
}
void TextureManager::GetGlyphRegions(strings::UniString const & text, TGlyphsBuffer & regions) const
{
size_t const INVALID_GROUP = static_cast<size_t>(-1);
size_t groupIndex = INVALID_GROUP;
for (strings::UniChar const & c : text)
{
auto const iter = lower_bound(m_glyphGroups.begin(), m_glyphGroups.end(), c, [](GlyphGroup const & g, strings::UniChar const & c)
{
return g.m_endChar < c;
});
ASSERT(iter != m_glyphGroups.end(), ());
size_t currentIndex = distance(m_glyphGroups.begin(), iter);
if (groupIndex == INVALID_GROUP)
groupIndex = currentIndex;
else if (groupIndex != currentIndex)
{
groupIndex = INVALID_GROUP;
break;
}
}
regions.reserve(text.size());
if (groupIndex == INVALID_GROUP)
{
/// TODO some magic with hybrid textures
}
else
{
GlyphGroup & group = m_glyphGroups[groupIndex];
if (group.m_texture.IsNull())
AllocateGlyphTexture(group);
RefPointer<Texture> texture = group.m_texture.GetRefPointer();
for (strings::UniChar const & c : text)
{
GlyphRegion reg;
reg.SetResourceInfo(texture->FindResource(GlyphKey(c)));
reg.SetTexture(texture);
regions.push_back(reg);
}
}
}
} // namespace dp
|