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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/util/filesource.hpp>
#include <mbgl/util/uv_detail.hpp>
using namespace mbgl;
TileData::TileData(Tile::ID id, Map &map, const 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();
map.getFileSource()->load(ResourceType::Tile, url, [weak_tile, url](platform::Response *res) {
std::shared_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 Tile is obsolete and we're now just waiting for the refcount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.
} else if (res->code == 200) {
tile->state = State::loaded;
tile->data.swap(res->body);
// Schedule tile parsing in another thread
tile->reparse();
} else {
#if defined(DEBUG)
fprintf(stderr, "[%s] tile loading failed: %d, %s\n", url.c_str(), res->code, res->error_message.c_str());
#endif
}
});
}
void TileData::cancel() {
if (state != State::obsolete) {
state = State::obsolete;
platform::cancel_request_http(req.lock());
}
}
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<std::shared_ptr<TileData>>(
map.getLoop(),
[](std::shared_ptr<TileData> &tile) {
tile->parse();
},
[](std::shared_ptr<TileData> &tile) {
tile->afterParse();
tile->map.update();
},
shared_from_this());
}
void TileData::afterParse() {}
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