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#include <mbgl/map/tile_data.hpp>
#include <mbgl/map/map.hpp>
#include <mbgl/style/style_source.hpp>
#include <mbgl/util/token.hpp>
#include <mbgl/util/string.hpp>
#include <mbgl/storage/file_source.hpp>
#include <mbgl/util/uv_detail.hpp>
using namespace mbgl;
TileData::TileData(Tile::ID id_, Map &map_, const util::ptr<SourceInfo> &source_)
: id(id_),
state(State::initial),
map(map_),
source(source_),
debugBucket(debugFontBuffer) {
// Initialize tile debug coordinates
const std::string str = util::sprintf<32>("%d/%d/%d", id_.z, id_.x, id_.y);
debugFontBuffer.addText(str.c_str(), 50, 200, 5);
}
TileData::~TileData() {
cancel();
}
const std::string TileData::toString() const {
return util::sprintf<32>("[tile %d/%d/%d]", id.z, id.x, id.y);
}
void TileData::request() {
if (source->tiles.empty())
return;
std::string url = source->tiles[(id.x + id.y) % source->tiles.size()];
url = util::replaceTokens(url, [&](const std::string &token) -> std::string {
if (token == "z") return std::to_string(id.z);
if (token == "x") return std::to_string(id.x);
if (token == "y") return std::to_string(id.y);
if (token == "ratio") return (map.getState().getPixelRatio() > 1.0 ? "@2x" : "");
return "";
});
state = State::loading;
// Note: Somehow this feels slower than the change to request_http()
std::weak_ptr<TileData> weak_tile = shared_from_this();
req = map.getFileSource()->request(ResourceType::Tile, url);
req->onload([weak_tile, url](const Response &res) {
util::ptr<TileData> tile = weak_tile.lock();
if (!tile || tile->state == State::obsolete) {
// noop. Tile is obsolete and we're now just waiting for the refcount
// to drop to zero for destruction.
return;
}
// Clear the request object.
tile->req.reset();
if (res.code == 200) {
tile->state = State::loaded;
tile->data = res.data;
// Schedule tile parsing in another thread
tile->reparse();
} else {
#if defined(DEBUG)
fprintf(stderr, "[%s] tile loading failed: %ld, %s\n", url.c_str(), res.code, res.message.c_str());
#endif
}
});
}
void TileData::cancel() {
if (state != State::obsolete) {
state = State::obsolete;
req.reset();
}
}
void TileData::beforeParse() {}
void TileData::reparse() {
beforeParse();
// We're creating a new work request. The work request deletes itself after it executed
// the after work handler
new uv::work<util::ptr<TileData>>(
map.getWorker(),
[](util::ptr<TileData> &tile) {
tile->parse();
},
[](util::ptr<TileData> &tile) {
tile->afterParse();
tile->map.update();
},
shared_from_this());
}
void TileData::afterParse() {}
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