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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_parameters.hpp>
#include <mbgl/renderer/tile_render_data.hpp>
#include <mbgl/tile/vector_tile.hpp>
#include <mbgl/util/constants.hpp>
#include <mbgl/util/math.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) {
bearing = parameters.transform.state.getBearing();
filteredRenderTiles = nullptr;
renderTilesSortedByY = nullptr;
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);
}
featureState.coalesceChanges(*tiles);
renderTiles = std::move(tiles);
}
void RenderTileSource::updateFadingTiles() {
tilePyramid.updateFadingTiles();
}
bool RenderTileSource::hasFadingTiles() const {
return tilePyramid.hasFadingTiles();
}
RenderTiles RenderTileSource::getRenderTiles() const {
if (!filteredRenderTiles) {
auto result = std::make_shared<std::vector<std::reference_wrapper<const RenderTile>>>();
for (const auto& renderTile : *renderTiles) {
if (renderTile.holdForFade()) {
continue;
}
result->emplace_back(renderTile);
}
filteredRenderTiles = std::move(result);
}
return filteredRenderTiles;
}
RenderTiles RenderTileSource::getRenderTilesSortedByYPosition() const {
if (!renderTilesSortedByY) {
const auto comp = [bearing = this->bearing](const RenderTile& a, const RenderTile& b) {
Point<float> pa(a.id.canonical.x, a.id.canonical.y);
Point<float> pb(b.id.canonical.x, b.id.canonical.y);
auto par = util::rotate(pa, bearing);
auto pbr = util::rotate(pb, bearing);
return std::tie(b.id.canonical.z, par.y, par.x) < std::tie(a.id.canonical.z, pbr.y, pbr.x);
};
auto result = std::make_shared<std::vector<std::reference_wrapper<const RenderTile>>>();
result->reserve(renderTiles->size());
for (const auto& renderTile : *renderTiles) {
result->emplace_back(renderTile);
}
std::sort(result->begin(), result->end(), comp);
renderTilesSortedByY = std::move(result);
}
return renderTilesSortedByY;
}
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::unordered_map<std::string, const RenderLayer*>& layers,
const RenderedQueryOptions& options,
const mat4& projMatrix) const {
return tilePyramid.queryRenderedFeatures(geometry, transformState, layers, options, projMatrix, featureState);
}
std::vector<Feature> RenderTileSource::querySourceFeatures(const SourceQueryOptions& options) const {
return tilePyramid.querySourceFeatures(options);
}
void RenderTileSource::setFeatureState(const optional<std::string>& sourceLayerID, const std::string& featureID,
const FeatureState& state) {
featureState.updateState(sourceLayerID, featureID, state);
}
void RenderTileSource::getFeatureState(FeatureState& state, const optional<std::string>& sourceLayerID,
const std::string& featureID) const {
featureState.getState(state, sourceLayerID, featureID);
}
void RenderTileSource::removeFeatureState(const optional<std::string>& sourceLayerID,
const optional<std::string>& featureID,
const optional<std::string>& stateKey) {
featureState.removeState(sourceLayerID, featureID, stateKey);
}
void RenderTileSource::reduceMemoryUse() {
tilePyramid.reduceMemoryUse();
}
void RenderTileSource::dumpDebugLogs() const {
tilePyramid.dumpDebugLogs();
}
// RenderTileSetSource implementation
RenderTileSetSource::RenderTileSetSource(Immutable<style::Source::Impl> impl_)
: RenderTileSource(std::move(impl_)) {
}
RenderTileSetSource::~RenderTileSetSource() = default;
uint8_t RenderTileSetSource::getMaxZoom() const {
return cachedTileset ? cachedTileset->zoomRange.max : util::TERRAIN_RGB_MAXZOOM;
}
void RenderTileSetSource::update(Immutable<style::Source::Impl> baseImpl_,
const std::vector<Immutable<style::LayerProperties>>& layers,
const bool needsRendering,
const bool needsRelayout,
const TileParameters& parameters) {
std::swap(baseImpl, baseImpl_);
enabled = needsRendering;
const optional<Tileset>& implTileset = getTileset();
// In Continuous mode, keep the existing tiles if the new cachedTileset is not
// yet available, thus providing smart style transitions without flickering.
// In other modes, allow clearing the tile pyramid first, before the early
// return in order to avoid render tests being flaky.
bool canUpdateTileset = implTileset || parameters.mode != MapMode::Continuous;
if (canUpdateTileset && cachedTileset != implTileset) {
cachedTileset = implTileset;
// TODO: this removes existing buckets, and will cause flickering.
// Should instead refresh tile data in place.
tilePyramid.clearAll();
}
if (!cachedTileset) return;
updateInternal(*cachedTileset, layers, needsRendering, needsRelayout, parameters);
}
} // namespace mbgl
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