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#include <mbgl/style/style.hpp>
#include <mbgl/map/sprite.hpp>
#include <mbgl/map/source.hpp>
#include <mbgl/map/transform_state.hpp>
#include <mbgl/style/style_layer.hpp>
#include <mbgl/style/style_parser.hpp>
#include <mbgl/style/style_bucket.hpp>
#include <mbgl/geometry/glyph_atlas.hpp>
#include <mbgl/geometry/sprite_atlas.hpp>
#include <mbgl/geometry/line_atlas.hpp>
#include <mbgl/util/constants.hpp>
#include <mbgl/util/uv_detail.hpp>
#include <mbgl/platform/log.hpp>
#include <csscolorparser/csscolorparser.hpp>
#include <rapidjson/document.h>
#include <algorithm>
namespace mbgl {
Style::Style(const std::string& data, const std::string&,
uv_loop_t* loop, Environment& env)
: glyphStore(std::make_unique<GlyphStore>(loop, env)),
glyphAtlas(std::make_unique<GlyphAtlas>(1024, 1024)),
spriteAtlas(std::make_unique<SpriteAtlas>(512, 512)),
lineAtlas(std::make_unique<LineAtlas>(512, 512)),
mtx(std::make_unique<uv::rwlock>()),
workers(4) {
rapidjson::Document doc;
doc.Parse<0>((const char *const)data.c_str());
if (doc.HasParseError()) {
Log::Error(Event::ParseStyle, "Error parsing style JSON at %i: %s", doc.GetErrorOffset(), doc.GetParseError());
return;
}
StyleParser parser;
parser.parse(doc);
sources = parser.getSources();
layers = parser.getLayers();
spriteURL = parser.getSprite();
glyphStore->setURL(parser.getGlyphURL());
for (const auto& source : sources) {
source->setObserver(this);
source->load();
}
glyphStore->setObserver(this);
}
Style::~Style() {
for (const auto& source : sources) {
source->setObserver(nullptr);
}
glyphStore->setObserver(nullptr);
if (sprite) {
sprite->setObserver(nullptr);
}
}
void Style::update(MapData& data,
const TransformState& transform,
TexturePool& texturePool) {
const float pixelRatio = transform.getPixelRatio();
if (!sprite || !sprite->hasPixelRatio(pixelRatio)) {
sprite = std::make_unique<Sprite>(spriteURL, pixelRatio);
sprite->setObserver(this);
spriteAtlas->resize(pixelRatio);
spriteAtlas->setSprite(sprite);
}
bool allTilesUpdated = true;
for (const auto& source : sources) {
if (!source->update(data, transform, *this, *glyphAtlas, *glyphStore,
*spriteAtlas, sprite, texturePool, shouldReparsePartialTiles)) {
allTilesUpdated = false;
}
}
// We can only stop updating "partial" tiles when all of them
// were notified of the arrival of the new resources.
if (allTilesUpdated) {
shouldReparsePartialTiles = false;
}
}
void Style::cascade(const std::vector<std::string>& classes) {
TimePoint now = Clock::now();
for (const auto& layer : layers) {
layer->setClasses(classes, now, defaultTransition);
}
}
void Style::recalculate(float z, TimePoint now) {
uv::writelock lock(mtx);
for (const auto& source : sources) {
source->enabled = false;
}
zoomHistory.update(z, now);
for (const auto& layer : layers) {
layer->updateProperties(z, now, zoomHistory);
if (layer->bucket && layer->bucket->source) {
layer->bucket->source->enabled = true;
}
}
}
void Style::setDefaultTransitionDuration(Duration duration) {
defaultTransition.duration = duration;
}
bool Style::hasTransitions() const {
for (const auto& layer : layers) {
if (layer->hasTransitions()) {
return true;
}
}
return false;
}
bool Style::isLoaded() const {
for (const auto& source : sources) {
if (!source->isLoaded()) {
return false;
}
}
if (sprite && !sprite->isLoaded()) {
return false;
}
return true;
}
void Style::setObserver(Observer* observer_) {
assert(Environment::currentlyOn(ThreadType::Map));
assert(!observer);
observer = observer_;
}
void Style::onGlyphRangeLoaded() {
shouldReparsePartialTiles = true;
emitTileDataChanged();
}
void Style::onGlyphRangeLoadingFailed(std::exception_ptr error) {
emitResourceLoadingFailed(error);
}
void Style::onSourceLoaded() {
emitTileDataChanged();
}
void Style::onSourceLoadingFailed(std::exception_ptr error) {
emitResourceLoadingFailed(error);
}
void Style::onTileLoaded(bool isNewTile) {
if (isNewTile) {
shouldReparsePartialTiles = true;
}
emitTileDataChanged();
}
void Style::onTileLoadingFailed(std::exception_ptr error) {
emitResourceLoadingFailed(error);
}
void Style::onSpriteLoaded() {
shouldReparsePartialTiles = true;
emitTileDataChanged();
}
void Style::onSpriteLoadingFailed(std::exception_ptr error) {
emitResourceLoadingFailed(error);
}
void Style::emitTileDataChanged() {
assert(Environment::currentlyOn(ThreadType::Map));
if (observer) {
observer->onTileDataChanged();
}
}
void Style::emitResourceLoadingFailed(std::exception_ptr error) {
assert(Environment::currentlyOn(ThreadType::Map));
try {
if (error) {
std::rethrow_exception(error);
}
} catch(const std::exception& e) {
Log::Error(Event::Style, e.what());
}
if (observer) {
observer->onResourceLoadingFailed(error);
}
}
}
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