Metal Optimizations (#1748)

2023-10-10 18:34:44 -07:00
parent d63f94f5a8
commit ce0096aab0
9 changed files with 131 additions and 71 deletions
--- a/src/mbgl/tile/geometry_tile_worker.cpp
+++ b/src/mbgl/tile/geometry_tile_worker.cpp
@@ -351,6 +351,11 @@ void GeometryTileWorker::parse() {

    featureIndex = std::make_unique<FeatureIndex>(*data ? (*data)->clone() : nullptr);

+    // Avoid small reallocations for populated cells.
+    // If we had a total feature count, this could be based on that and the cell count.
+    constexpr auto estimatedElementsPerCell = 8;
+    featureIndex->reserve(estimatedElementsPerCell);
+
    GlyphDependencies glyphDependencies;
    ImageDependencies imageDependencies;