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#ifndef MBGL_RENDERER_SYMBOLBUCKET
#define MBGL_RENDERER_SYMBOLBUCKET
#include <mbgl/renderer/bucket.hpp>
#include <mbgl/tile/geometry_tile.hpp>
#include <mbgl/map/mode.hpp>
#include <mbgl/geometry/vao.hpp>
#include <mbgl/geometry/elements_buffer.hpp>
#include <mbgl/geometry/text_buffer.hpp>
#include <mbgl/geometry/icon_buffer.hpp>
#include <mbgl/geometry/collision_box_buffer.hpp>
#include <mbgl/text/glyph.hpp>
#include <mbgl/text/collision_feature.hpp>
#include <mbgl/text/shaping.hpp>
#include <mbgl/text/quads.hpp>
#include <mbgl/style/filter_expression.hpp>
#include <mbgl/layer/symbol_layer.hpp>
#include <memory>
#include <map>
#include <set>
#include <vector>
namespace mbgl {
class SDFShader;
class IconShader;
class CollisionBoxShader;
class DotShader;
class CollisionTile;
class SpriteAtlas;
class SpriteStore;
class GlyphAtlas;
class GlyphStore;
class SymbolFeature {
public:
std::vector<std::vector<Coordinate>> geometry;
std::u32string label;
std::string sprite;
};
struct Anchor;
class SymbolInstance {
public:
explicit SymbolInstance(Anchor& anchor, const std::vector<Coordinate>& line,
const Shaping& shapedText, const PositionedIcon& shapedIcon,
const SymbolLayoutProperties& layout, const bool inside, const uint32_t index,
const float textBoxScale, const float textPadding, const float textAlongLine,
const float iconBoxScale, const float iconPadding, const float iconAlongLine,
const GlyphPositions& face);
float x;
float y;
uint32_t index;
bool hasText;
bool hasIcon;
SymbolQuads glyphQuads;
SymbolQuads iconQuads;
CollisionFeature textCollisionFeature;
CollisionFeature iconCollisionFeature;
};
class SymbolBucket : public Bucket {
typedef ElementGroup<1> TextElementGroup;
typedef ElementGroup<2> IconElementGroup;
typedef ElementGroup<1> CollisionBoxElementGroup;
public:
SymbolBucket(float overscaling, float zoom, const MapMode);
~SymbolBucket() override;
void upload(gl::GLObjectStore&) override;
void render(Painter&, const StyleLayer&, const TileID&, const mat4&) override;
bool hasData() const override;
bool hasTextData() const;
bool hasIconData() const;
bool hasCollisionBoxData() const;
void addFeatures(uintptr_t tileUID,
SpriteAtlas&,
GlyphAtlas&,
GlyphStore&);
void drawGlyphs(SDFShader&, gl::GLObjectStore&);
void drawIcons(SDFShader&, gl::GLObjectStore&);
void drawIcons(IconShader&, gl::GLObjectStore&);
void drawCollisionBoxes(CollisionBoxShader&, gl::GLObjectStore&);
void parseFeatures(const GeometryTileLayer&,
const FilterExpression&);
bool needsDependencies(GlyphStore&, SpriteStore&);
void placeFeatures(CollisionTile&) override;
private:
void addFeature(const std::vector<std::vector<Coordinate>> &lines,
const Shaping &shapedText, const PositionedIcon &shapedIcon,
const GlyphPositions &face);
bool anchorIsTooClose(const std::u32string &text, const float repeatDistance, Anchor &anchor);
std::map<std::u32string, std::vector<Anchor>> compareText;
void addToDebugBuffers(CollisionTile &collisionTile);
void swapRenderData() override;
// Adds placed items to the buffer.
template <typename Buffer, typename GroupType>
void addSymbols(Buffer &buffer, const SymbolQuads &symbols, float scale,
const bool keepUpright, const bool alongLine, const float placementAngle);
public:
SymbolLayoutProperties layout;
bool sdfIcons = false;
bool iconsNeedLinear = false;
private:
const float overscaling;
const float zoom;
const float tileSize;
const float tilePixelRatio;
const MapMode mode;
std::set<GlyphRange> ranges;
std::vector<SymbolInstance> symbolInstances;
std::vector<SymbolFeature> features;
struct SymbolRenderData {
struct TextBuffer {
TextVertexBuffer vertices;
TriangleElementsBuffer triangles;
std::vector<std::unique_ptr<TextElementGroup>> groups;
} text;
struct IconBuffer {
IconVertexBuffer vertices;
TriangleElementsBuffer triangles;
std::vector<std::unique_ptr<IconElementGroup>> groups;
} icon;
struct CollisionBoxBuffer {
CollisionBoxVertexBuffer vertices;
std::vector<std::unique_ptr<CollisionBoxElementGroup>> groups;
} collisionBox;
};
std::unique_ptr<SymbolRenderData> renderData;
std::unique_ptr<SymbolRenderData> renderDataInProgress;
};
} // namespace mbgl
#endif
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