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author | Mikhail Pozdnyakov <mikhail.pozdnyakov@mapbox.com> | 2019-07-08 17:49:32 +0300 |
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committer | Mikhail Pozdnyakov <mikhail.pozdnyakov@mapbox.com> | 2019-07-09 12:34:58 +0300 |
commit | 929824ecc3176c01a5f3e74d80e2ae2ba2cf1e51 (patch) | |
tree | e0bf2f80fe2779759a43faecb3d6c6902be70289 /src/mbgl/renderer/render_source.hpp | |
parent | 81fc49502307dcf6a390b86fc62f6affc5f2b365 (diff) | |
download | qtlocation-mapboxgl-929824ecc3176c01a5f3e74d80e2ae2ba2cf1e51.tar.gz |
[core] Share render tiles lists between layers
This helps to avoid unneeded allocations.
Diffstat (limited to 'src/mbgl/renderer/render_source.hpp')
-rw-r--r-- | src/mbgl/renderer/render_source.hpp | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/src/mbgl/renderer/render_source.hpp b/src/mbgl/renderer/render_source.hpp index 2a4983e799..cd471223a8 100644 --- a/src/mbgl/renderer/render_source.hpp +++ b/src/mbgl/renderer/render_source.hpp @@ -43,7 +43,7 @@ public: const ImageManager& imageManager; }; -using RenderTiles = std::vector<std::reference_wrapper<const RenderTile>>; +using RenderTiles = std::shared_ptr<const std::vector<std::reference_wrapper<const RenderTile>>>; class RenderSource : protected TileObserver { public: @@ -64,8 +64,14 @@ public: virtual void prepare(const SourcePrepareParameters&) = 0; virtual void updateFadingTiles() = 0; virtual bool hasFadingTiles() const = 0; - // Returns a list of RenderTiles, sorted by tile id. - virtual RenderTiles getRenderTiles() = 0; + // If supported, returns a shared list of RenderTiles, sorted by tile id and excluding tiles hold for fade; + // returns nullptr otherwise. + virtual RenderTiles getRenderTiles() const { return nullptr; } + // If supported, returns a shared list of RenderTiles, sorted in opposite y position, so tiles with overlapping + // symbols are drawn on top of each other, with lower symbols being drawn on top of higher symbols; + // returns nullptr otherwise. + virtual RenderTiles getRenderTilesSortedByYPosition() const { return nullptr; } + // If supported, returns pointer to image data; returns nullptr otherwise. virtual const ImageSourceRenderData* getImageRenderData() const { return nullptr; } virtual const Tile* getRenderedTile(const UnwrappedTileID&) const { return nullptr; } |