summaryrefslogtreecommitdiff
path: root/src/mbgl/renderer/buckets/symbol_bucket.hpp
blob: 9b64babb589d2a46745f861ba26bd36d2b5759e9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
#pragma once

#include <mbgl/renderer/bucket.hpp>
#include <mbgl/map/mode.hpp>
#include <mbgl/gl/vertex_buffer.hpp>
#include <mbgl/gl/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 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;
};

class SymbolBucket : public Bucket {
public:
    SymbolBucket(style::SymbolLayoutProperties::PossiblyEvaluated,
                 const std::map<std::string, std::pair<style::IconPaintProperties::PossiblyEvaluated, style::TextPaintProperties::PossiblyEvaluated>>&,
                 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>&&);

    void upload(gl::Context&) override;
    bool hasData() const override;
    bool hasTextData() const;
    bool hasIconData() const;
    bool hasCollisionBoxData() const;
    bool hasCollisionCircleData() const;

    void updateOpacity();
    void sortFeatures(const float angle);

    const style::SymbolLayoutProperties::PossiblyEvaluated layout;
    const bool sdfIcons;
    const bool iconsNeedLinear;
    const bool sortFeaturesByY;

    const std::string bucketLeaderID;

    optional<float> sortedAngle;

    bool staticUploaded = false;
    bool placementChangesUploaded = false;
    bool dynamicUploaded = false;
    bool sortUploaded = false;

    std::vector<SymbolInstance> symbolInstances;

    std::map<std::string, std::pair<
        SymbolIconProgram::PaintPropertyBinders,
        SymbolSDFTextProgram::PaintPropertyBinders>> paintPropertyBinders;
    
    std::map<std::string, std::pair<
        SymbolIconProgram::PaintPropertyBinders::Bitset,
        SymbolSDFTextProgram::PaintPropertyBinders::Bitset>> paintPropertyBitsets;

    std::unique_ptr<SymbolSizeBinder> textSizeBinder;

    struct TextBuffer {
        gl::VertexVector<SymbolLayoutVertex> vertices;
        gl::VertexVector<SymbolDynamicLayoutAttributes::Vertex> dynamicVertices;
        gl::VertexVector<SymbolOpacityAttributes::Vertex> opacityVertices;
        gl::IndexVector<gl::Triangles> triangles;
        SegmentVector<SymbolTextAttributes> segments;
        std::vector<PlacedSymbol> placedSymbols;

        optional<gl::VertexBuffer<SymbolLayoutVertex>> vertexBuffer;
        optional<gl::VertexBuffer<SymbolDynamicLayoutAttributes::Vertex>> dynamicVertexBuffer;
        optional<gl::VertexBuffer<SymbolOpacityAttributes::Vertex>> opacityVertexBuffer;
        optional<gl::IndexBuffer<gl::Triangles>> indexBuffer;
    } text;

    std::unique_ptr<SymbolSizeBinder> iconSizeBinder;

    struct IconBuffer {
        gl::VertexVector<SymbolLayoutVertex> vertices;
        gl::VertexVector<SymbolDynamicLayoutAttributes::Vertex> dynamicVertices;
        gl::VertexVector<SymbolOpacityAttributes::Vertex> opacityVertices;
        gl::IndexVector<gl::Triangles> triangles;
        SegmentVector<SymbolIconAttributes> segments;
        std::vector<PlacedSymbol> placedSymbols;
        PremultipliedImage atlasImage;

        optional<gl::VertexBuffer<SymbolLayoutVertex>> vertexBuffer;
        optional<gl::VertexBuffer<SymbolDynamicLayoutAttributes::Vertex>> dynamicVertexBuffer;
        optional<gl::VertexBuffer<SymbolOpacityAttributes::Vertex>> opacityVertexBuffer;
        optional<gl::IndexBuffer<gl::Triangles>> indexBuffer;
    } icon;

    struct CollisionBuffer {
        gl::VertexVector<CollisionBoxLayoutAttributes::Vertex> vertices;
        gl::VertexVector<CollisionBoxDynamicAttributes::Vertex> dynamicVertices;
        SegmentVector<CollisionBoxProgram::Attributes> segments;

        optional<gl::VertexBuffer<CollisionBoxLayoutAttributes::Vertex>> vertexBuffer;
        optional<gl::VertexBuffer<CollisionBoxDynamicAttributes::Vertex>> dynamicVertexBuffer;
    };

    struct CollisionBoxBuffer : public CollisionBuffer {
        gl::IndexVector<gl::Lines> lines;
        optional<gl::IndexBuffer<gl::Lines>> indexBuffer;
    } collisionBox;

    struct CollisionCircleBuffer : public CollisionBuffer {
        gl::IndexVector<gl::Triangles> triangles;
        optional<gl::IndexBuffer<gl::Triangles>> indexBuffer;
    } collisionCircle;

    uint32_t bucketInstanceId = 0;
    bool justReloaded = false;

    std::shared_ptr<std::vector<size_t>> featureSortOrder;
};

template <>
inline bool Bucket::is<SymbolBucket>() const {
    return layerType == style::LayerType::Symbol;
}

} // namespace mbgl