89 lines
2.3 KiB
C++
89 lines
2.3 KiB
C++
#ifndef LLMR_RENDERER_FILLBUCKET
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#define LLMR_RENDERER_FILLBUCKET
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#include <llmr/renderer/bucket.hpp>
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#include <llmr/style/bucket_description.hpp>
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#include <llmr/geometry/elements_buffer.hpp>
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#include <llmr/geometry/fill_buffer.hpp>
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#include <clipper/clipper.hpp>
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#include <libtess2/tesselator.h>
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#include <vector>
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#include <memory>
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#ifndef BUFFER_OFFSET
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#define BUFFER_OFFSET(i) ((char *)nullptr + (i))
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#endif
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namespace llmr {
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class Style;
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class FillVertexBuffer;
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class TriangleElementsBuffer;
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class LineElementsBuffer;
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class BucketDescription;
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class OutlineShader;
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class PlainShader;
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class PatternShader;
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struct pbf;
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class FillBucket : public Bucket {
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static void *alloc(void *data, unsigned int size);
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static void *realloc(void *data, void *ptr, unsigned int size);
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static void free(void *userData, void *ptr);
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typedef ElementGroup triangle_group_type;
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typedef ElementGroup line_group_type;
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public:
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FillBucket(FillVertexBuffer& vertexBuffer,
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TriangleElementsBuffer& triangleElementsBuffer,
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LineElementsBuffer& lineElementsBuffer,
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const BucketDescription& bucket_desc);
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~FillBucket();
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virtual void render(Painter& painter, const std::string& layer_name, const Tile::ID& id);
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virtual bool hasData() const;
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void addGeometry(pbf& data);
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void tessellate();
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void drawElements(PlainShader& shader);
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void drawElements(PatternShader& shader);
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void drawVertices(OutlineShader& shader);
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public:
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const BucketGeometryDescription geom_desc;
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private:
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TESSalloc *allocator;
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TESStesselator *tesselator;
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ClipperLib::Clipper clipper;
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FillVertexBuffer& vertexBuffer;
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TriangleElementsBuffer& triangleElementsBuffer;
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LineElementsBuffer& lineElementsBuffer;
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// hold information on where the vertices are located in the FillBuffer
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const size_t vertex_start;
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const size_t triangle_elements_start;
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const size_t line_elements_start;
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VertexArrayObject array;
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std::vector<triangle_group_type> triangleGroups;
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std::vector<line_group_type> lineGroups;
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std::vector<ClipperLib::IntPoint> line;
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bool hasVertices = false;
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static const int vertexSize = 2;
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static const int stride = sizeof(TESSreal) * vertexSize;
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static const int vertices_per_group = 3;
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};
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}
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#endif
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