bug fix

Runtime/ui/painting/canvas_shader.cs

             var mat = _fill1Mat.getMaterial(paint.blendMode);
             _getShaderPassAndProps(layer, paint, mesh.matrix, 1.0f, out var pass, out var props);
 
-            return PictureFlusher.CmdDraw.create(
+            var ret = PictureFlusher.CmdDraw.create(
+            
+            mesh.dispose();
+            return ret;
         }
 
         public static PictureFlusher.CmdDraw stroke0(PictureFlusher.RenderLayer layer, Paint paint,

Runtime/ui/utils/basic_types/path.cs

                 return;
             }
 
-            var points = TessellationGenerator.tessellateBezier(x1, y1, x2, y2, x3, y3, x4, y4, this._tessTol);
+            var points = uiTessellationGenerator.tessellateBezier(x1, y1, x2, y2, x3, y3, x4, y4, this._tessTol);
             D.assert(points.Count > 0);
             for (int i = 0; i < points.Count; i++) {
                 var point = points[i];

Runtime/ui/utils/basic_types/pool_items.cs

                 info += "| " + key + " = " + debugInfo[key]._watermark + " |\n";
                 debugInfo[key]._old_watermark = debugInfo[key]._watermark;
             }
-            
-            Debug.Log(info);
+
+            if (info != "") {
+                Debug.Log(info);
+            }
         }
 
         public static T alloc<T>() where T : PoolItem, new() {