[core] Refactor Source::*Impls into RenderSources and TilePyramid

6 files changed, 442 insertions, 0 deletions

diff --git a/src/mbgl/renderer/sources/render_geojson_source.cpp b/src/mbgl/renderer/sources/render_geojson_source.cpp
new file mode 100644
index 0000000000..7e36b44ea4
--- /dev/null
+++ b/src/mbgl/renderer/sources/render_geojson_source.cpp
@@ -0,0 +1,95 @@
+#include <mbgl/renderer/sources/render_geojson_source.hpp>
+#include <mbgl/renderer/render_tile.hpp>
+#include <mbgl/tile/geojson_tile.hpp>
+
+#include <mbgl/algorithm/generate_clip_ids.hpp>
+#include <mbgl/algorithm/generate_clip_ids_impl.hpp>
+
+namespace mbgl {
+
+using namespace style;
+
+RenderGeoJSONSource::RenderGeoJSONSource(const style::GeoJSONSource::Impl& impl_)
+    : RenderSource(impl_),
+      impl(impl_) {
+    tilePyramid.setObserver(this);
+}
+
+bool RenderGeoJSONSource::isLoaded() const {
+    return tilePyramid.isLoaded();
+}
+
+void RenderGeoJSONSource::invalidateTiles() {
+    tilePyramid.invalidateTiles();
+}
+
+void RenderGeoJSONSource::startRender(algorithm::ClipIDGenerator& generator, const mat4& projMatrix, const mat4& clipMatrix, const TransformState& transform) {
+    generator.update(tilePyramid.getRenderTiles());
+    tilePyramid.startRender(projMatrix, clipMatrix, transform);
+}
+
+void RenderGeoJSONSource::finishRender(Painter& painter) {
+    tilePyramid.finishRender(painter);
+}
+
+std::map<UnwrappedTileID, RenderTile>& RenderGeoJSONSource::getRenderTiles() {
+    return tilePyramid.getRenderTiles();
+}
+
+void RenderGeoJSONSource::updateTiles(const UpdateParameters& parameters) {
+    GeoJSONData* data_ = impl.getData();
+
+    if (!data_) {
+        return;
+    }
+
+    if (data_ != data) {
+        data = data_;
+        tilePyramid.cache.clear();
+
+        for (auto const& item : tilePyramid.tiles) {
+            static_cast<GeoJSONTile*>(item.second.get())->updateData(data->getTile(item.first.canonical));
+        }
+    }
+
+    tilePyramid.updateTiles(parameters,
+                            SourceType::GeoJSON,
+                            util::tileSize,
+                            impl.getZoomRange(),
+                            [&] (const OverscaledTileID& tileID) {
+                                return std::make_unique<GeoJSONTile>(tileID, impl.id, parameters, data->getTile(tileID.canonical));
+                            });
+}
+
+void RenderGeoJSONSource::removeTiles() {
+    tilePyramid.removeTiles();
+}
+
+void RenderGeoJSONSource::reloadTiles() {
+    tilePyramid.reloadTiles();
+}
+
+std::unordered_map<std::string, std::vector<Feature>>
+RenderGeoJSONSource::queryRenderedFeatures(const ScreenLineString& geometry,
+                                          const TransformState& transformState,
+                                          const RenderedQueryOptions& options) const {
+    return tilePyramid.queryRenderedFeatures(geometry, transformState, options);
+}
+
+std::vector<Feature> RenderGeoJSONSource::querySourceFeatures(const SourceQueryOptions& options) const {
+    return tilePyramid.querySourceFeatures(options);
+}
+
+void RenderGeoJSONSource::setCacheSize(size_t size) {
+    tilePyramid.setCacheSize(size);
+}
+
+void RenderGeoJSONSource::onLowMemory() {
+    tilePyramid.onLowMemory();
+}
+
+void RenderGeoJSONSource::dumpDebugLogs() const {
+    tilePyramid.dumpDebugLogs();
+}
+
+} // namespace mbgl
diff --git a/src/mbgl/renderer/sources/render_geojson_source.hpp b/src/mbgl/renderer/sources/render_geojson_source.hpp
new file mode 100644
index 0000000000..3476b63afd
--- /dev/null
+++ b/src/mbgl/renderer/sources/render_geojson_source.hpp
@@ -0,0 +1,59 @@
+#pragma once
+
+#include <mbgl/renderer/render_source.hpp>
+#include <mbgl/renderer/tile_pyramid.hpp>
+#include <mbgl/style/sources/geojson_source_impl.hpp>
+
+namespace mbgl {
+
+namespace style {
+class GeoJSONData;
+} // namespace style
+
+class RenderGeoJSONSource : public RenderSource {
+public:
+    RenderGeoJSONSource(const style::GeoJSONSource::Impl&);
+
+    bool isLoaded() const final;
+
+    // Called when the camera has changed. May load new tiles, unload obsolete tiles, or
+    // trigger re-placement of existing complete tiles.
+    void updateTiles(const style::UpdateParameters&) final;
+
+    // Removes all tiles (by putting them into the cache).
+    void removeTiles() final;
+
+    // Remove all tiles and clear the cache.
+    void invalidateTiles() final;
+
+    // Request that all loaded tiles re-run the layout operation on the existing source
+    // data with fresh style information.
+    void reloadTiles() final;
+
+    void startRender(algorithm::ClipIDGenerator&,
+                     const mat4& projMatrix,
+                     const mat4& clipMatrix,
+                     const TransformState&) final;
+    void finishRender(Painter&) final;
+
+    std::map<UnwrappedTileID, RenderTile>& getRenderTiles() final;
+
+    std::unordered_map<std::string, std::vector<Feature>>
+    queryRenderedFeatures(const ScreenLineString& geometry,
+                          const TransformState& transformState,
+                          const RenderedQueryOptions& options) const final;
+
+    std::vector<Feature>
+    querySourceFeatures(const SourceQueryOptions&) const final;
+
+    void setCacheSize(size_t) final;
+    void onLowMemory() final;
+    void dumpDebugLogs() const final;
+
+private:
+    const style::GeoJSONSource::Impl& impl;
+    TilePyramid tilePyramid;
+    style::GeoJSONData* data;
+};
+
+} // namespace mbgl
diff --git a/src/mbgl/renderer/sources/render_raster_source.cpp b/src/mbgl/renderer/sources/render_raster_source.cpp
new file mode 100644
index 0000000000..75a2189053
--- /dev/null
+++ b/src/mbgl/renderer/sources/render_raster_source.cpp
@@ -0,0 +1,87 @@
+#include <mbgl/renderer/sources/render_raster_source.hpp>
+#include <mbgl/renderer/render_tile.hpp>
+#include <mbgl/tile/raster_tile.hpp>
+
+namespace mbgl {
+
+using namespace style;
+
+RenderRasterSource::RenderRasterSource(const style::RasterSource::Impl& impl_)
+    : RenderSource(impl_),
+      impl(impl_) {
+    tilePyramid.setObserver(this);
+}
+
+bool RenderRasterSource::isLoaded() const {
+    return tilePyramid.isLoaded();
+}
+
+void RenderRasterSource::invalidateTiles() {
+    tilePyramid.invalidateTiles();
+}
+
+void RenderRasterSource::startRender(algorithm::ClipIDGenerator&, const mat4& projMatrix, const mat4& clipMatrix, const TransformState& transform) {
+    tilePyramid.startRender(projMatrix, clipMatrix, transform);
+}
+
+void RenderRasterSource::finishRender(Painter& painter) {
+    tilePyramid.finishRender(painter);
+}
+
+std::map<UnwrappedTileID, RenderTile>& RenderRasterSource::getRenderTiles() {
+    return tilePyramid.getRenderTiles();
+}
+
+void RenderRasterSource::updateTiles(const UpdateParameters& parameters) {
+    optional<Tileset> tileset = impl.getTileset();
+
+    if (!tileset) {
+        return;
+    }
+
+    if (tileURLTemplates != tileset->tiles) {
+        tileURLTemplates = tileset->tiles;
+        tilePyramid.invalidateTiles();
+    }
+
+    tilePyramid.updateTiles(parameters,
+                            SourceType::Raster,
+                            impl.getTileSize(),
+                            tileset->zoomRange,
+                            [&] (const OverscaledTileID& tileID) {
+                                return std::make_unique<RasterTile>(tileID, parameters, *tileset);
+                            });
+}
+
+void RenderRasterSource::removeTiles() {
+    tilePyramid.removeTiles();
+}
+
+void RenderRasterSource::reloadTiles() {
+    tilePyramid.reloadTiles();
+}
+
+std::unordered_map<std::string, std::vector<Feature>>
+RenderRasterSource::queryRenderedFeatures(const ScreenLineString&,
+                                          const TransformState&,
+                                          const RenderedQueryOptions&) const {
+    return {};
+}
+
+std::vector<Feature> RenderRasterSource::querySourceFeatures(const SourceQueryOptions&) const {
+    return {};
+}
+
+void RenderRasterSource::setCacheSize(size_t size) {
+    tilePyramid.setCacheSize(size);
+}
+
+void RenderRasterSource::onLowMemory() {
+    tilePyramid.onLowMemory();
+}
+
+void RenderRasterSource::dumpDebugLogs() const {
+    tilePyramid.dumpDebugLogs();
+}
+
+} // namespace mbgl
diff --git a/src/mbgl/renderer/sources/render_raster_source.hpp b/src/mbgl/renderer/sources/render_raster_source.hpp
new file mode 100644
index 0000000000..6b95be363f
--- /dev/null
+++ b/src/mbgl/renderer/sources/render_raster_source.hpp
@@ -0,0 +1,55 @@
+#pragma once
+
+#include <mbgl/renderer/render_source.hpp>
+#include <mbgl/renderer/tile_pyramid.hpp>
+#include <mbgl/style/sources/raster_source_impl.hpp>
+
+namespace mbgl {
+
+class RenderRasterSource : public RenderSource {
+public:
+    RenderRasterSource(const style::RasterSource::Impl&);
+
+    bool isLoaded() const final;
+
+    // Called when the camera has changed. May load new tiles, unload obsolete tiles, or
+    // trigger re-placement of existing complete tiles.
+    void updateTiles(const style::UpdateParameters&) final;
+
+    // Removes all tiles (by putting them into the cache).
+    void removeTiles() final;
+
+    // Remove all tiles and clear the cache.
+    void invalidateTiles() final;
+
+    // Request that all loaded tiles re-run the layout operation on the existing source
+    // data with fresh style information.
+    void reloadTiles() final;
+
+    void startRender(algorithm::ClipIDGenerator&,
+                     const mat4& projMatrix,
+                     const mat4& clipMatrix,
+                     const TransformState&) final;
+    void finishRender(Painter&) final;
+
+    std::map<UnwrappedTileID, RenderTile>& getRenderTiles() final;
+
+    std::unordered_map<std::string, std::vector<Feature>>
+    queryRenderedFeatures(const ScreenLineString& geometry,
+                          const TransformState& transformState,
+                          const RenderedQueryOptions& options) const final;
+
+    std::vector<Feature>
+    querySourceFeatures(const SourceQueryOptions&) const final;
+
+    void setCacheSize(size_t) final;
+    void onLowMemory() final;
+    void dumpDebugLogs() const final;
+
+private:
+    const style::RasterSource::Impl& impl;
+    TilePyramid tilePyramid;
+    optional<std::vector<std::string>> tileURLTemplates;
+};
+
+} // namespace mbgl
diff --git a/src/mbgl/renderer/sources/render_vector_source.cpp b/src/mbgl/renderer/sources/render_vector_source.cpp
new file mode 100644
index 0000000000..3d7e09fd2a
--- /dev/null
+++ b/src/mbgl/renderer/sources/render_vector_source.cpp
@@ -0,0 +1,91 @@
+#include <mbgl/renderer/sources/render_vector_source.hpp>
+#include <mbgl/renderer/render_tile.hpp>
+#include <mbgl/tile/vector_tile.hpp>
+
+#include <mbgl/algorithm/generate_clip_ids.hpp>
+#include <mbgl/algorithm/generate_clip_ids_impl.hpp>
+
+namespace mbgl {
+
+using namespace style;
+
+RenderVectorSource::RenderVectorSource(const style::VectorSource::Impl& impl_)
+    : RenderSource(impl_),
+      impl(impl_) {
+    tilePyramid.setObserver(this);
+}
+
+bool RenderVectorSource::isLoaded() const {
+    return tilePyramid.isLoaded();
+}
+
+void RenderVectorSource::invalidateTiles() {
+    tilePyramid.invalidateTiles();
+}
+
+void RenderVectorSource::startRender(algorithm::ClipIDGenerator& generator, const mat4& projMatrix, const mat4& clipMatrix, const TransformState& transform) {
+    generator.update(tilePyramid.getRenderTiles());
+    tilePyramid.startRender(projMatrix, clipMatrix, transform);
+}
+
+void RenderVectorSource::finishRender(Painter& painter) {
+    tilePyramid.finishRender(painter);
+}
+
+std::map<UnwrappedTileID, RenderTile>& RenderVectorSource::getRenderTiles() {
+    return tilePyramid.getRenderTiles();
+}
+
+void RenderVectorSource::updateTiles(const UpdateParameters& parameters) {
+    optional<Tileset> tileset = impl.getTileset();
+
+    if (!tileset) {
+        return;
+    }
+
+    if (tileURLTemplates != tileset->tiles) {
+        tileURLTemplates = tileset->tiles;
+        tilePyramid.invalidateTiles();
+    }
+
+    tilePyramid.updateTiles(parameters,
+                            SourceType::Vector,
+                            util::tileSize,
+                            tileset->zoomRange,
+                            [&] (const OverscaledTileID& tileID) {
+                                return std::make_unique<VectorTile>(tileID, impl.id, parameters, *tileset);
+                            });
+}
+
+void RenderVectorSource::removeTiles() {
+    tilePyramid.removeTiles();
+}
+
+void RenderVectorSource::reloadTiles() {
+    tilePyramid.reloadTiles();
+}
+
+std::unordered_map<std::string, std::vector<Feature>>
+RenderVectorSource::queryRenderedFeatures(const ScreenLineString& geometry,
+                                          const TransformState& transformState,
+                                          const RenderedQueryOptions& options) const {
+    return tilePyramid.queryRenderedFeatures(geometry, transformState, options);
+}
+
+std::vector<Feature> RenderVectorSource::querySourceFeatures(const SourceQueryOptions& options) const {
+    return tilePyramid.querySourceFeatures(options);
+}
+
+void RenderVectorSource::setCacheSize(size_t size) {
+    tilePyramid.setCacheSize(size);
+}
+
+void RenderVectorSource::onLowMemory() {
+    tilePyramid.onLowMemory();
+}
+
+void RenderVectorSource::dumpDebugLogs() const {
+    tilePyramid.dumpDebugLogs();
+}
+
+} // namespace mbgl
diff --git a/src/mbgl/renderer/sources/render_vector_source.hpp b/src/mbgl/renderer/sources/render_vector_source.hpp
new file mode 100644
index 0000000000..0f40c14cf5
--- /dev/null
+++ b/src/mbgl/renderer/sources/render_vector_source.hpp
@@ -0,0 +1,55 @@
+#pragma once
+
+#include <mbgl/renderer/render_source.hpp>
+#include <mbgl/renderer/tile_pyramid.hpp>
+#include <mbgl/style/sources/vector_source_impl.hpp>
+
+namespace mbgl {
+
+class RenderVectorSource : public RenderSource {
+public:
+    RenderVectorSource(const style::VectorSource::Impl&);
+
+    bool isLoaded() const final;
+
+    // Called when the camera has changed. May load new tiles, unload obsolete tiles, or
+    // trigger re-placement of existing complete tiles.
+    void updateTiles(const style::UpdateParameters&) final;
+
+    // Removes all tiles (by putting them into the cache).
+    void removeTiles() final;
+
+    // Remove all tiles and clear the cache.
+    void invalidateTiles() final;
+
+    // Request that all loaded tiles re-run the layout operation on the existing source
+    // data with fresh style information.
+    void reloadTiles() final;
+
+    void startRender(algorithm::ClipIDGenerator&,
+                     const mat4& projMatrix,
+                     const mat4& clipMatrix,
+                     const TransformState&) final;
+    void finishRender(Painter&) final;
+
+    std::map<UnwrappedTileID, RenderTile>& getRenderTiles() final;
+
+    std::unordered_map<std::string, std::vector<Feature>>
+    queryRenderedFeatures(const ScreenLineString& geometry,
+                          const TransformState& transformState,
+                          const RenderedQueryOptions& options) const final;
+
+    std::vector<Feature>
+    querySourceFeatures(const SourceQueryOptions&) const final;
+
+    void setCacheSize(size_t) final;
+    void onLowMemory() final;
+    void dumpDebugLogs() const final;
+
+private:
+    const style::VectorSource::Impl& impl;
+    TilePyramid tilePyramid;
+    optional<std::vector<std::string>> tileURLTemplates;
+};
+
+} // namespace mbgl