skia/renderer/include/to_skia.hpp

#ifndef _RIVE_TO_SKIA_HPP_
#define _RIVE_TO_SKIA_HPP_

#include "SkPaint.h"
#include "rive/math/mat2d.hpp"
#include "rive/math/vec2d.hpp"
#include "rive/shapes/paint/stroke_cap.hpp"
#include "rive/shapes/paint/stroke_join.hpp"
#include "rive/shapes/paint/blend_mode.hpp"

namespace rive {
    class ToSkia {
    public:
        static SkMatrix convert(const rive::Mat2D& m) {
            return SkMatrix::MakeAll(m[0], m[2], m[4],
                                     m[1], m[3], m[5],
                                     0,    0,    1);
        }

        static SkPoint convert(const rive::Vec2D& point) {
            return SkPoint::Make(point[0], point[1]);
        }

        static SkTileMode convert(RenderTileMode rtm) {
            switch (rtm) {
                case RenderTileMode::clamp:  return SkTileMode::kClamp;
                case RenderTileMode::repeat: return SkTileMode::kRepeat;
                case RenderTileMode::mirror: return SkTileMode::kMirror;
                case RenderTileMode::decal:  return SkTileMode::kDecal;
            }
            assert(false);
            return SkTileMode::kClamp;
        }

        static SkPaint::Cap convert(rive::StrokeCap cap) {
            switch (cap) {
                case rive::StrokeCap::butt:
                    return SkPaint::Cap::kButt_Cap;
                case rive::StrokeCap::round:
                    return SkPaint::Cap::kRound_Cap;
                case rive::StrokeCap::square:
                    return SkPaint::Cap::kSquare_Cap;
            }
            return SkPaint::Cap::kButt_Cap;
        }

        static SkPaint::Join convert(rive::StrokeJoin join) {
            switch (join) {
                case rive::StrokeJoin::bevel:
                    return SkPaint::Join::kBevel_Join;
                case rive::StrokeJoin::round:
                    return SkPaint::Join::kRound_Join;
                case rive::StrokeJoin::miter:
                    return SkPaint::Join::kMiter_Join;
            }
            return SkPaint::Join::kMiter_Join;
        }

        static SkBlendMode convert(rive::BlendMode blendMode) {
            switch (blendMode) {
                case rive::BlendMode::srcOver:
                    return SkBlendMode::kSrcOver;
                case rive::BlendMode::screen:
                    return SkBlendMode::kScreen;
                case rive::BlendMode::overlay:
                    return SkBlendMode::kOverlay;
                case rive::BlendMode::darken:
                    return SkBlendMode::kDarken;
                case rive::BlendMode::lighten:
                    return SkBlendMode::kLighten;
                case rive::BlendMode::colorDodge:
                    return SkBlendMode::kColorDodge;
                case rive::BlendMode::colorBurn:
                    return SkBlendMode::kColorBurn;
                case rive::BlendMode::hardLight:
                    return SkBlendMode::kHardLight;
                case rive::BlendMode::softLight:
                    return SkBlendMode::kSoftLight;
                case rive::BlendMode::difference:
                    return SkBlendMode::kDifference;
                case rive::BlendMode::exclusion:
                    return SkBlendMode::kExclusion;
                case rive::BlendMode::multiply:
                    return SkBlendMode::kMultiply;
                case rive::BlendMode::hue:
                    return SkBlendMode::kHue;
                case rive::BlendMode::saturation:
                    return SkBlendMode::kSaturation;
                case rive::BlendMode::color:
                    return SkBlendMode::kColor;
                case rive::BlendMode::luminosity:
                    return SkBlendMode::kLuminosity;
            }
            return SkBlendMode::kSrcOver;
        }
        
        static SkVertices::VertexMode convert(rive::RenderMesh::Type t) {
            switch (t) {
                case rive::RenderMesh::triangles: return SkVertices::kTriangles_VertexMode;
                case rive::RenderMesh::strip:     return SkVertices::kTriangleStrip_VertexMode;
                case rive::RenderMesh::fan:       return SkVertices::kTriangleFan_VertexMode;
            }
            assert(false);
            return SkVertices::kTriangles_VertexMode;
        }
    };
} // namespace rive
#endif