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path: root/src/mbgl/renderer/sources/render_tile_source.cpp
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#include <mbgl/renderer/sources/render_tile_source.hpp>

#include <mbgl/renderer/buckets/debug_bucket.hpp>
#include <mbgl/renderer/render_tile.hpp>
#include <mbgl/renderer/render_tree.hpp>
#include <mbgl/renderer/paint_parameters.hpp>
#include <mbgl/renderer/tile_render_data.hpp>
#include <mbgl/tile/vector_tile.hpp>

namespace mbgl {

using namespace style;

class TileSourceRenderItem : public RenderItem {
public:
    TileSourceRenderItem(Immutable<std::vector<RenderTile>> renderTiles_, std::string name_)
        : renderTiles(std::move(renderTiles_))
        , name(std::move(name_)) {}

private:
    void upload(gfx::UploadPass&) const override;
    void render(PaintParameters&) const override;
    bool hasRenderPass(RenderPass) const override { return false; }
    const std::string& getName() const override { return name; }

    Immutable<std::vector<RenderTile>> renderTiles;
    std::string name;
};

void TileSourceRenderItem::upload(gfx::UploadPass& parameters) const {
    for (auto& tile : *renderTiles) {
        tile.upload(parameters);
    }
}

void TileSourceRenderItem::render(PaintParameters& parameters) const {
    for (auto& tile : *renderTiles) {
        tile.finishRender(parameters);
    }
}

RenderTileSource::RenderTileSource(Immutable<style::Source::Impl> impl_)
    : RenderSource(std::move(impl_))
    , renderTiles(makeMutable<std::vector<RenderTile>>()) {
    tilePyramid.setObserver(this);
}

RenderTileSource::~RenderTileSource() = default;

bool RenderTileSource::isLoaded() const {
    return tilePyramid.isLoaded();
}

std::unique_ptr<RenderItem> RenderTileSource::createRenderItem() {
    return std::make_unique<TileSourceRenderItem>(renderTiles, baseImpl->id);
}

void RenderTileSource::prepare(const SourcePrepareParameters& parameters) {
    auto tiles = makeMutable<std::vector<RenderTile>>();
    tiles->reserve(tilePyramid.getRenderedTiles().size());
    for (auto& entry : tilePyramid.getRenderedTiles()) {
        tiles->emplace_back(entry.first, entry.second);
        tiles->back().prepare(parameters);
    }
    renderTiles = std::move(tiles);
}

void RenderTileSource::updateFadingTiles() {
    tilePyramid.updateFadingTiles();
}

bool RenderTileSource::hasFadingTiles() const {
    return tilePyramid.hasFadingTiles();
}

RenderTiles RenderTileSource::getRenderTiles() {
    return { renderTiles->begin(), renderTiles->end() };
}

const Tile* RenderTileSource::getRenderedTile(const UnwrappedTileID& tileID) const {
    return tilePyramid.getRenderedTile(tileID);
}

std::unordered_map<std::string, std::vector<Feature>>
RenderTileSource::queryRenderedFeatures(const ScreenLineString& geometry,
                                          const TransformState& transformState,
                                          const std::vector<const RenderLayer*>& layers,
                                          const RenderedQueryOptions& options,
                                          const mat4& projMatrix) const {
    return tilePyramid.queryRenderedFeatures(geometry, transformState, layers, options, projMatrix);
}

std::vector<Feature> RenderTileSource::querySourceFeatures(const SourceQueryOptions& options) const {
    return tilePyramid.querySourceFeatures(options);
}

void RenderTileSource::reduceMemoryUse() {
    tilePyramid.reduceMemoryUse();
}

void RenderTileSource::dumpDebugLogs() const {
    tilePyramid.dumpDebugLogs();
}

} // namespace mbgl