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
|
#include <mbgl/map/resource_loader.hpp>
#include <mbgl/geometry/sprite_atlas.hpp>
#include <mbgl/map/environment.hpp>
#include <mbgl/map/source.hpp>
#include <mbgl/map/sprite.hpp>
#include <mbgl/map/transform.hpp>
#include <mbgl/style/style.hpp>
#include <cassert>
namespace mbgl {
ResourceLoader::ResourceLoader() {
assert(Environment::currentlyOn(ThreadType::Map));
}
ResourceLoader::~ResourceLoader() {
assert(Environment::currentlyOn(ThreadType::Map));
for (const auto& source : style_->sources) {
source->setObserver(nullptr);
}
sprite_->setObserver(nullptr);
}
void ResourceLoader::setObserver(Observer* observer) {
assert(Environment::currentlyOn(ThreadType::Map));
assert(!observer_);
observer_ = observer;
}
void ResourceLoader::setStyle(Style* style) {
assert(style);
style_ = style;
for (const auto& source : style->sources) {
source->setObserver(this);
source->load(accessToken_);
}
}
void ResourceLoader::setAccessToken(const std::string& accessToken) {
accessToken_ = accessToken;
}
void ResourceLoader::update(MapData& data,
const TransformState& transform,
GlyphAtlas& glyphAtlas,
GlyphStore& glyphStore,
SpriteAtlas& spriteAtlas,
TexturePool& texturePool) {
if (!style_) {
return;
}
const float pixelRatio = transform.getPixelRatio();
if (!sprite_ || !sprite_->hasPixelRatio(pixelRatio)) {
sprite_ = util::make_unique<Sprite>(style_->getSpriteURL(), pixelRatio);
sprite_->setObserver(this);
spriteAtlas.resize(pixelRatio);
spriteAtlas.setSprite(sprite_);
}
for (const auto& source : style_->sources) {
source->update(
data, transform, *style_, glyphAtlas, glyphStore, spriteAtlas, sprite_, texturePool);
}
}
void ResourceLoader::onGlyphRangeLoaded() {
emitTileDataChanged();
}
void ResourceLoader::onSourceLoaded() {
emitTileDataChanged();
}
void ResourceLoader::onTileLoaded() {
emitTileDataChanged();
}
void ResourceLoader::onSpriteLoaded() {
emitTileDataChanged();
}
void ResourceLoader::emitTileDataChanged() {
assert(Environment::currentlyOn(ThreadType::Map));
if (observer_) {
observer_->onTileDataChanged();
}
}
}
|
