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#include "android_renderer_frontend.hpp"
#include <mbgl/actor/scheduler.hpp>
#include <mbgl/renderer/renderer.hpp>
#include <mbgl/renderer/renderer_observer.hpp>
#include <mbgl/storage/file_source.hpp>
#include <mbgl/util/async_task.hpp>
#include <mbgl/util/thread.hpp>
#include <mbgl/util/run_loop.hpp>
#include <mbgl/util/geojson.hpp>
#include "android_renderer_backend.hpp"
namespace mbgl {
namespace android {
// Forwards RendererObserver signals to the given
// Delegate RendererObserver on the given RunLoop
class ForwardingRendererObserver : public RendererObserver {
public:
ForwardingRendererObserver(util::RunLoop& mapRunLoop, RendererObserver& delegate_)
: mailbox(std::make_shared<Mailbox>(mapRunLoop))
, delegate(delegate_, mailbox) {
}
~ForwardingRendererObserver() {
mailbox->close();
}
void onInvalidate() override {
delegate.invoke(&RendererObserver::onInvalidate);
}
void onResourceError(std::exception_ptr err) override {
delegate.invoke(&RendererObserver::onResourceError, err);
}
void onWillStartRenderingMap() override {
delegate.invoke(&RendererObserver::onWillStartRenderingMap);
}
void onWillStartRenderingFrame() override {
delegate.invoke(&RendererObserver::onWillStartRenderingFrame);
}
void onDidFinishRenderingFrame(RenderMode mode, bool repaintNeeded) override {
delegate.invoke(&RendererObserver::onDidFinishRenderingFrame, mode, repaintNeeded);
}
void onDidFinishRenderingMap() override {
delegate.invoke(&RendererObserver::onDidFinishRenderingMap);
}
private:
std::shared_ptr<Mailbox> mailbox;
ActorRef<RendererObserver> delegate;
};
AndroidRendererFrontend::AndroidRendererFrontend(MapRenderer& mapRenderer_)
: mapRenderer(mapRenderer_)
, mapRunLoop(util::RunLoop::Get())
, updateAsyncTask(std::make_unique<util::AsyncTask>([this]() {
mapRenderer.update(std::move(updateParams));
mapRenderer.requestRender();
})) {
}
AndroidRendererFrontend::~AndroidRendererFrontend() = default;
void AndroidRendererFrontend::reset() {
mapRenderer.reset();
}
void AndroidRendererFrontend::setObserver(RendererObserver& observer) {
assert (util::RunLoop::Get());
// Don't call the Renderer directly, but use MapRenderer#setObserver to make sure
// the Renderer may be re-initialised without losing the RendererObserver reference.
mapRenderer.setObserver(std::make_unique<ForwardingRendererObserver>(*mapRunLoop, observer));
}
void AndroidRendererFrontend::update(std::shared_ptr<UpdateParameters> params) {
updateParams = std::move(params);
updateAsyncTask->send();
}
void AndroidRendererFrontend::reduceMemoryUse() {
mapRenderer.actor().invoke(&Renderer::reduceMemoryUse);
}
std::vector<Feature> AndroidRendererFrontend::querySourceFeatures(const std::string& sourceID,
const SourceQueryOptions& options) const {
// Waits for the result from the orchestration thread and returns
return mapRenderer.actor().ask(&Renderer::querySourceFeatures, sourceID, options).get();
}
std::vector<Feature> AndroidRendererFrontend::queryRenderedFeatures(const ScreenBox& box,
const RenderedQueryOptions& options) const {
// Select the right overloaded method
std::vector<Feature> (Renderer::*fn)(const ScreenBox&, const RenderedQueryOptions&) const = &Renderer::queryRenderedFeatures;
// Waits for the result from the orchestration thread and returns
return mapRenderer.actor().ask(fn, box, options).get();
}
std::vector<Feature> AndroidRendererFrontend::queryRenderedFeatures(const ScreenCoordinate& point,
const RenderedQueryOptions& options) const {
// Select the right overloaded method
std::vector<Feature> (Renderer::*fn)(const ScreenCoordinate&, const RenderedQueryOptions&) const = &Renderer::queryRenderedFeatures;
// Waits for the result from the orchestration thread and returns
return mapRenderer.actor().ask(fn, point, options).get();
}
AnnotationIDs AndroidRendererFrontend::queryPointAnnotations(const ScreenBox& box) const {
// Waits for the result from the orchestration thread and returns
return mapRenderer.actor().ask(&Renderer::queryPointAnnotations, box).get();
}
AnnotationIDs AndroidRendererFrontend::queryShapeAnnotations(const ScreenBox& box) const {
// Waits for the result from the orchestration thread and returns
return mapRenderer.actor().ask(&Renderer::queryShapeAnnotations, box).get();
}
FeatureExtensionValue AndroidRendererFrontend::queryFeatureExtensions(const std::string& sourceID,
const Feature& feature,
const std::string& extension,
const std::string& extensionField,
const optional<std::map<std::string, mbgl::Value>>& args) const {
return mapRenderer.actor().ask(&Renderer::queryFeatureExtensions, sourceID, feature, extension, extensionField, args).get();
}
} // namespace android
} // namespace mbgl
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