77 lines
2.4 KiB
C++
77 lines
2.4 KiB
C++
#include <mbgl/tile/raster_tile_data.hpp>
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#include <mbgl/style/source.hpp>
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#include <mbgl/style/update_parameters.hpp>
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#include <mbgl/tile/tile_data_observer.hpp>
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#include <mbgl/tile/image_tile_source.hpp>
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#include <mbgl/storage/resource.hpp>
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#include <mbgl/storage/response.hpp>
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#include <mbgl/storage/file_source.hpp>
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#include <mbgl/util/worker.hpp>
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#include <mbgl/util/work_request.hpp>
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using namespace mbgl;
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RasterTileData::RasterTileData(const OverscaledTileID& id_,
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const style::UpdateParameters& parameters,
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const Tileset& tileset)
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: TileData(id_),
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texturePool(parameters.texturePool),
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worker(parameters.worker) {
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assert(!tileset.tiles.empty());
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const auto resource = Resource::tile(
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tileset.tiles.at(0), parameters.pixelRatio, id_.canonical.x,
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id_.canonical.y, id_.canonical.z);
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tileSource = std::make_unique<ImageTileSource>(*this, resource, parameters.fileSource);
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}
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void RasterTileData::setError(std::exception_ptr err) {
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observer->onTileError(*this, err);
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}
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void RasterTileData::setData(std::shared_ptr<const std::string> data,
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optional<Timestamp> modified_,
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optional<Timestamp> expires_) {
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modified = modified_;
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expires = expires_;
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if (!data) {
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// This is a 404 response. We're treating these as empty tiles.
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workRequest.reset();
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availableData = DataAvailability::All;
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bucket.reset();
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observer->onTileLoaded(*this, true);
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return;
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}
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workRequest.reset();
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workRequest = worker.parseRasterTile(std::make_unique<RasterBucket>(texturePool), data, [this] (RasterTileParseResult result) {
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workRequest.reset();
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availableData = DataAvailability::All;
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if (result.is<std::unique_ptr<Bucket>>()) {
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bucket = std::move(result.get<std::unique_ptr<Bucket>>());
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observer->onTileLoaded(*this, true);
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} else {
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bucket.reset();
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observer->onTileError(*this, result.get<std::exception_ptr>());
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}
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});
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}
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RasterTileData::~RasterTileData() {
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cancel();
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}
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Bucket* RasterTileData::getBucket(const style::Layer&) {
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return bucket.get();
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}
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void RasterTileData::setNecessity(Necessity necessity) {
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tileSource->setNecessity(static_cast<TileSource::Necessity>(necessity));
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}
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void RasterTileData::cancel() {
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workRequest.reset();
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}
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