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#include <mbgl/map/vector_tile_data.hpp>
#include <mbgl/map/tile_parser.hpp>
#include <mbgl/style/style_layer.hpp>
#include <mbgl/style/style_bucket.hpp>
#include <mbgl/map/source.hpp>
#include <mbgl/geometry/glyph_atlas.hpp>
#include <mbgl/platform/log.hpp>
#include <mbgl/text/collision_tile.hpp>
#include <mbgl/util/pbf.hpp>
#include <mbgl/util/worker.hpp>
#include <mbgl/util/work_request.hpp>
using namespace mbgl;
VectorTileData::VectorTileData(const TileID& id_,
const std::vector<util::ptr<StyleLayer>>& layers_,
Worker& workers_,
GlyphAtlas& glyphAtlas_,
GlyphStore& glyphStore_,
SpriteAtlas& spriteAtlas_,
util::ptr<Sprite> sprite_,
const SourceInfo& source_,
float angle,
bool collisionDebug)
: TileData(id_, source_),
layers(layers_),
workers(workers_),
glyphAtlas(glyphAtlas_),
glyphStore(glyphStore_),
spriteAtlas(spriteAtlas_),
sprite(sprite_),
collision(std::make_unique<CollisionTile>(id_.z, 4096, source_.tile_size * id.overscaling, angle, collisionDebug)),
lastAngle(angle),
currentAngle(angle) {
}
VectorTileData::~VectorTileData() {
// Cancel in most derived class destructor so that worker tasks are joined before
// any member data goes away.
cancel();
glyphAtlas.removeGlyphs(reinterpret_cast<uintptr_t>(this));
}
void VectorTileData::parse() {
if (getState() != State::loaded && getState() != State::partial) {
return;
}
try {
// Parsing creates state that is encapsulated in TileParser. While parsing,
// the TileParser object writes results into this objects. All other state
// is going to be discarded afterwards.
VectorTile vectorTile(pbf((const uint8_t *)data.data(), data.size()));
const VectorTile* vt = &vectorTile;
TileParser parser(*vt, *this, layers, glyphAtlas, glyphStore, spriteAtlas, sprite);
parser.parse();
if (getState() == State::obsolete) {
return;
}
if (parser.isPartialParse()) {
setState(State::partial);
} else {
setState(State::parsed);
}
} catch (const std::exception& ex) {
std::stringstream message;
message << "Failed to parse [" << int(id.sourceZ) << "/" << id.x << "/" << id.y << "]: " << ex.what();
setError(message.str());
}
}
Bucket* VectorTileData::getBucket(StyleLayer const& layer) {
if (!isReady() || !layer.bucket) {
return nullptr;
}
std::lock_guard<std::mutex> lock(bucketsMutex);
const auto it = buckets.find(layer.bucket->name);
if (it == buckets.end()) {
return nullptr;
}
assert(it->second);
return it->second.get();
}
size_t VectorTileData::countBuckets() const {
std::lock_guard<std::mutex> lock(bucketsMutex);
return buckets.size();
}
void VectorTileData::setBucket(StyleLayer const& layer, std::unique_ptr<Bucket> bucket) {
assert(layer.bucket);
std::lock_guard<std::mutex> lock(bucketsMutex);
if (buckets.find(layer.bucket->name) != buckets.end()) {
return;
}
buckets[layer.bucket->name] = std::move(bucket);
}
void VectorTileData::setState(const State& state_) {
TileData::setState(state_);
if (isImmutable()) {
collision->reset(0, 0);
}
}
void VectorTileData::redoPlacement() {
redoPlacement(lastAngle, lastCollisionDebug);
}
void VectorTileData::redoPlacement(float angle, bool collisionDebug) {
if (angle != currentAngle || collisionDebug != currentCollisionDebug) {
lastAngle = angle;
lastCollisionDebug = collisionDebug;
if (getState() != State::parsed || redoingPlacement) return;
redoingPlacement = true;
currentAngle = angle;
currentCollisionDebug = collisionDebug;
auto callback = std::bind(&VectorTileData::endRedoPlacement, this);
workRequest = workers.send([this, angle, collisionDebug] { workerRedoPlacement(angle, collisionDebug); }, callback);
}
}
void VectorTileData::workerRedoPlacement(float angle, bool collisionDebug) {
collision->reset(angle, 0);
collision->setDebug(collisionDebug);
for (const auto& layer_desc : layers) {
auto bucket = getBucket(*layer_desc);
if (bucket) {
bucket->placeFeatures();
}
}
}
void VectorTileData::endRedoPlacement() {
for (const auto& layer_desc : layers) {
auto bucket = getBucket(*layer_desc);
if (bucket) {
bucket->swapRenderData();
}
}
redoingPlacement = false;
redoPlacement();
}
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