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#ifndef MBGL_RENDERER_SYMBOLBUCKET
#define MBGL_RENDERER_SYMBOLBUCKET
#include <mbgl/renderer/bucket.hpp>
#include <mbgl/map/geometry_tile.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/text/types.hpp>
#include <mbgl/text/glyph.hpp>
#include <mbgl/style/style_bucket.hpp>
#include <mbgl/style/style_layout.hpp>
#include <memory>
#include <map>
#include <vector>
namespace mbgl {
class Style;
class StyleLayoutSymbol;
class SDFShader;
class IconShader;
class DotShader;
class Collision;
class SpriteAtlas;
class Sprite;
class GlyphAtlas;
class GlyphStore;
class FontStack;
class SymbolFeature {
public:
std::vector<std::vector<Coordinate>> geometry;
std::u32string label;
std::string sprite;
};
class Symbol {
public:
vec2<float> tl, tr, bl, br;
Rect<uint16_t> tex;
float angle;
float minScale = 0.0f;
float maxScale = std::numeric_limits<float>::infinity();
CollisionAnchor anchor;
};
typedef std::vector<Symbol> Symbols;
class SymbolBucket : public Bucket {
typedef ElementGroup<1> TextElementGroup;
typedef ElementGroup<2> IconElementGroup;
public:
SymbolBucket(Collision &collision);
~SymbolBucket() override;
void render(Painter &painter, const StyleLayer &layer_desc, const Tile::ID &id,
const mat4 &matrix) override;
bool hasData() const override;
bool hasTextData() const;
bool hasIconData() const;
void addFeatures(const GeometryTileLayer&,
const FilterExpression&,
uintptr_t tileUID,
SpriteAtlas&,
Sprite&,
GlyphAtlas&,
GlyphStore&);
void drawGlyphs(SDFShader& shader);
void drawIcons(SDFShader& shader);
void drawIcons(IconShader& shader);
private:
std::vector<SymbolFeature> processFeatures(const GeometryTileLayer&,
const FilterExpression&,
GlyphStore&,
const Sprite&);
void addFeature(const std::vector<Coordinate> &line, const Shaping &shaping, const GlyphPositions &face, const Rect<uint16_t> &image);
// Adds placed items to the buffer.
template <typename Buffer, typename GroupType>
void addSymbols(Buffer &buffer, const PlacedGlyphs &symbols, float scale, PlacementRange placementRange);
public:
StyleLayoutSymbol layout;
bool sdfIcons = false;
private:
Collision &collision;
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;
};
}
#endif
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