tess/include/rive/tess/contour_stroke.hpp

#ifndef _RIVE_CONTOUR_STROKE_HPP_
#define _RIVE_CONTOUR_STROKE_HPP_

#include "rive/renderer.hpp"
#include "rive/math/aabb.hpp"
#include "rive/math/mat2d.hpp"
#include <vector>
#include <cstdint>

namespace rive {
class SegmentedContour;

///
/// Builds a triangle strip vertex buffer from a SegmentedContour.
///
class ContourStroke {
protected:
    std::vector<Vec2D> m_TriangleStrip;
    std::vector<std::size_t> m_Offsets;
    uint32_t m_RenderOffset = 0;

public:
    const std::vector<Vec2D>& triangleStrip() const { return m_TriangleStrip; }

    void reset();
    void resetRenderOffset();
    bool nextRenderOffset(std::size_t& start, std::size_t& end);

    void extrude(const SegmentedContour* contour,
                 bool isClosed,
                 StrokeJoin join,
                 StrokeCap cap,
                 float strokeWidth);
};
} // namespace rive
#endif