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