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#pragma once
#include <mbgl/renderer/bucket.hpp>
#include <mbgl/map/mode.hpp>
#include <mbgl/gfx/vertex_buffer.hpp>
#include <mbgl/gfx/index_buffer.hpp>
#include <mbgl/programs/segment.hpp>
#include <mbgl/programs/symbol_program.hpp>
#include <mbgl/programs/collision_box_program.hpp>
#include <mbgl/text/glyph_range.hpp>
#include <mbgl/style/layers/symbol_layer_properties.hpp>
#include <mbgl/layout/symbol_feature.hpp>
#include <mbgl/layout/symbol_instance.hpp>
#include <vector>
namespace mbgl {
class CrossTileSymbolLayerIndex;
class PlacedSymbol {
public:
PlacedSymbol(Point<float> anchorPoint_, uint16_t segment_, float lowerSize_, float upperSize_,
std::array<float, 2> lineOffset_, WritingModeType writingModes_, GeometryCoordinates line_, std::vector<float> tileDistances_) :
anchorPoint(anchorPoint_), segment(segment_), lowerSize(lowerSize_), upperSize(upperSize_),
lineOffset(lineOffset_), writingModes(writingModes_), line(std::move(line_)), tileDistances(std::move(tileDistances_)), hidden(false), vertexStartIndex(0)
{
}
Point<float> anchorPoint;
uint16_t segment;
float lowerSize;
float upperSize;
std::array<float, 2> lineOffset;
WritingModeType writingModes;
GeometryCoordinates line;
std::vector<float> tileDistances;
std::vector<float> glyphOffsets;
bool hidden;
size_t vertexStartIndex;
// The crossTileID is only filled/used on the foreground for variable text anchors
uint32_t crossTileID = 0u;
};
class SymbolBucket final : public Bucket {
public:
SymbolBucket(Immutable<style::SymbolLayoutProperties::PossiblyEvaluated>,
const std::map<std::string, Immutable<style::LayerProperties>>&,
const style::PropertyValue<float>& textSize,
const style::PropertyValue<float>& iconSize,
float zoom,
bool sdfIcons,
bool iconsNeedLinear,
bool sortFeaturesByY,
const std::string bucketLeaderID,
const std::vector<SymbolInstance>&&,
const float tilePixelRatio);
~SymbolBucket() override;
void upload(gfx::UploadPass&) override;
bool hasData() const override;
std::pair<uint32_t, bool> registerAtCrossTileIndex(CrossTileSymbolLayerIndex&, const OverscaledTileID&, uint32_t& maxCrossTileID) override;
void place(Placement&, const BucketPlacementParameters&, std::set<uint32_t>&) override;
void updateVertices(Placement&, bool updateOpacities, const TransformState&, const RenderTile&, std::set<uint32_t>&) override;
bool hasTextData() const;
bool hasIconData() const;
bool hasCollisionBoxData() const;
bool hasCollisionCircleData() const;
bool hasFormatSectionOverrides() const;
void sortFeatures(const float angle);
// The result contains references to the `symbolInstances` items, sorted by viewport Y.
std::vector<std::reference_wrapper<SymbolInstance>> getSortedSymbols(const float angle);
Immutable<style::SymbolLayoutProperties::PossiblyEvaluated> layout;
const std::string bucketLeaderID;
float sortedAngle = std::numeric_limits<float>::max();
// Flags
const bool sdfIcons : 1;
const bool iconsNeedLinear : 1;
const bool sortFeaturesByY : 1;
bool staticUploaded : 1;
bool placementChangesUploaded : 1;
bool dynamicUploaded : 1;
bool sortUploaded : 1;
bool justReloaded : 1;
bool hasVariablePlacement : 1;
std::vector<SymbolInstance> symbolInstances;
struct PaintProperties {
SymbolIconProgram::Binders iconBinders;
SymbolSDFTextProgram::Binders textBinders;
};
std::map<std::string, PaintProperties> paintProperties;
std::unique_ptr<SymbolSizeBinder> textSizeBinder;
struct Buffer {
gfx::VertexVector<SymbolLayoutVertex> vertices;
gfx::VertexVector<gfx::Vertex<SymbolDynamicLayoutAttributes>> dynamicVertices;
gfx::VertexVector<gfx::Vertex<SymbolOpacityAttributes>> opacityVertices;
gfx::IndexVector<gfx::Triangles> triangles;
SegmentVector<SymbolTextAttributes> segments;
std::vector<PlacedSymbol> placedSymbols;
optional<gfx::VertexBuffer<SymbolLayoutVertex>> vertexBuffer;
optional<gfx::VertexBuffer<gfx::Vertex<SymbolDynamicLayoutAttributes>>> dynamicVertexBuffer;
optional<gfx::VertexBuffer<gfx::Vertex<SymbolOpacityAttributes>>> opacityVertexBuffer;
optional<gfx::IndexBuffer> indexBuffer;
} text;
std::unique_ptr<SymbolSizeBinder> iconSizeBinder;
struct IconBuffer : public Buffer {
PremultipliedImage atlasImage;
} icon;
struct CollisionBuffer {
gfx::VertexVector<gfx::Vertex<CollisionBoxLayoutAttributes>> vertices;
gfx::VertexVector<gfx::Vertex<CollisionBoxDynamicAttributes>> dynamicVertices;
SegmentVector<CollisionBoxProgram::AttributeList> segments;
optional<gfx::VertexBuffer<gfx::Vertex<CollisionBoxLayoutAttributes>>> vertexBuffer;
optional<gfx::VertexBuffer<gfx::Vertex<CollisionBoxDynamicAttributes>>> dynamicVertexBuffer;
};
struct CollisionBoxBuffer : public CollisionBuffer {
gfx::IndexVector<gfx::Lines> lines;
optional<gfx::IndexBuffer> indexBuffer;
} collisionBox;
struct CollisionCircleBuffer : public CollisionBuffer {
gfx::IndexVector<gfx::Triangles> triangles;
optional<gfx::IndexBuffer> indexBuffer;
} collisionCircle;
const float tilePixelRatio;
uint32_t bucketInstanceId;
mutable optional<bool> hasFormatSectionOverrides_;
std::shared_ptr<std::vector<size_t>> featureSortOrder;
};
} // namespace mbgl
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