Convert RenderPath/CommandPath and RenderPaint to refcounted objects

Diffs=
8666bde87 Convert RenderPath/CommandPath and RenderPaint to refcounted objects (#6395)

Co-authored-by: Chris Dalton <[email protected]>

.rive_head

@@ -1 +1 @@
-9c3da38e31678c3eaccc88857f6b54255e889cee
+8666bde87b8ef973ff99d7a285a4b768bdf76aa9

wasm/src/bindings_c2d.cpp

@@ -331,7 +331,7 @@ class C2DFactory : public Factory
         return rcp<RenderShader>(new RadialGradientShader(colors, stops, count, cx, cy, radius));
     }
 
-    std::unique_ptr<RenderPath> makeRenderPath(RawPath& path, FillRule fr) override
+    rcp<RenderPath> makeRenderPath(RawPath& path, FillRule fr) override
     {
         val renderPath = val::module_property("renderFactory").call<val>("makeRenderPath");
         auto ptr = renderPath.as<RenderPath*>(allow_raw_pointers());
@@ -363,21 +363,21 @@ class C2DFactory : public Factory
         }
         assert(pts - path.points().data() == path.points().size());
 
-        return std::unique_ptr<RenderPath>(ptr);
+        return rcp(ptr); // Adopt this ref without increasing the refcount.
     }
 
-    std::unique_ptr<RenderPath> makeEmptyRenderPath() override
+    rcp<RenderPath> makeEmptyRenderPath() override
     {
         val renderPath = val::module_property("renderFactory").call<val>("makeRenderPath");
         auto ptr = renderPath.as<RenderPath*>(allow_raw_pointers());
-        return std::unique_ptr<RenderPath>(ptr);
+        return rcp(ptr); // Adopt this ref without increasing the refcount.
     }
 
-    std::unique_ptr<RenderPaint> makeRenderPaint() override
+    rcp<RenderPaint> makeRenderPaint() override
     {
         val renderPaint = val::module_property("renderFactory").call<val>("makeRenderPaint");
         auto ptr = renderPaint.as<RenderPaint*>(allow_raw_pointers());
-        return std::unique_ptr<RenderPaint>(ptr);
+        return rcp(ptr); // Adopt this ref without increasing the refcount.
     }
 
     rcp<RenderImage> decodeImage(Span<const uint8_t> bytes) override

wasm/src/bindings_skia.cpp

@@ -83,7 +83,7 @@ class WebGLSkiaRenderer : public rive::SkiaRenderer
     void saveClipRect(float l, float t, float r, float b)
     {
         save();
-        std::unique_ptr<rive::RenderPath> rect(jsFactory()->makeEmptyRenderPath());
+        rive::rcp<rive::RenderPath> rect(jsFactory()->makeEmptyRenderPath());
         rect->moveTo(l, t);
         rect->lineTo(r, t);
         rect->lineTo(r, b);