EMSUSD-1686 Camera Performance Fix Backport

cmake/modules/FindUFE.cmake

@@ -267,3 +267,12 @@ if(UFE_INCLUDE_DIR AND EXISTS "${UFE_INCLUDE_DIR}/ufe/sceneSegmentHandler.h")
         message(STATUS "Maya has UFE SceneSegmentHandler's rootSceneSegmentRootPath interface")
     endif()
 endif()
+
+set(UFE_CAMERAHANDLER_HAS_FINDALL FALSE CACHE INTERNAL "findAll")
+if(UFE_INCLUDE_DIR AND EXISTS "${UFE_INCLUDE_DIR}/ufe/cameraHandler.h")
+    file(STRINGS ${UFE_INCLUDE_DIR}/ufe/cameraHandler.h UFE_HAS_API REGEX "findAll")
+    if(UFE_HAS_API)
+        set(UFE_CAMERAHANDLER_HAS_FINDALL TRUE CACHE INTERNAL "ufeCameraHandlerHasFindAll")
+        message(STATUS "Maya has UFE CameraHandler's findAll interface")
+    endif()
+endif()

lib/mayaUsd/ufe/CMakeLists.txt

@@ -155,14 +155,26 @@ if (NOT MAYA_APP_VERSION VERSION_GREATER 2025)
     )
 endif()
 
+if (UFE_CAMERAHANDLER_HAS_FINDALL)
+    target_compile_definitions(${PROJECT_NAME}
+    PRIVATE
+        UFE_CAMERAHANDLER_HAS_FINDALL=1
+    )
+endif()
+
+if(UFE_CAMERAHANDLER_HAS_FINDALL)
+    target_sources(${PROJECT_NAME}
+        PRIVATE
+            ProxyShapeCameraHandler.cpp
+    )
+endif()
 
 if(CMAKE_UFE_V4_FEATURES_AVAILABLE)
     target_sources(${PROJECT_NAME}
         PRIVATE
             UsdShaderNodeDef.cpp
             UsdShaderNodeDefHandler.cpp
             UsdUndoCreateFromNodeDefCommand.cpp
-            ProxyShapeCameraHandler.cpp
             UsdConnections.cpp
             UsdConnectionHandler.cpp
             UsdUINodeGraphNode.cpp
@@ -243,12 +255,17 @@ if(CodeWrapperHandler IN_LIST UFE_PREVIEW_FEATURES)
     )
 endif()
 
+if(UFE_CAMERAHANDLER_HAS_FINDALL)
+    list(APPEND HEADERS
+        ProxyShapeCameraHandler.h
+    )
+endif()
+
 if(CMAKE_UFE_V4_FEATURES_AVAILABLE)
     list(APPEND HEADERS
         UsdShaderNodeDef.h
         UsdShaderNodeDefHandler.h
         UsdUndoCreateFromNodeDefCommand.h
-        ProxyShapeCameraHandler.h
         UsdConnections.h
         UsdConnectionHandler.h
         UsdUINodeGraphNode.h

lib/mayaUsd/ufe/Global.cpp

@@ -53,8 +53,11 @@
 #include <mayaUsd/ufe/UsdMaterialHandler.h>
 #endif
 
-#ifdef UFE_V4_FEATURES_AVAILABLE
+#if defined(UFE_V4_FEATURES_AVAILABLE) || (UFE_MAJOR_VERSION == 3 && UFE_CAMERAHANDLER_HAS_FINDALL)
 #include <mayaUsd/ufe/ProxyShapeCameraHandler.h>
+#endif
+
+#ifdef UFE_V4_FEATURES_AVAILABLE
 #include <mayaUsd/ufe/UsdConnectionHandler.h>
 #include <mayaUsd/ufe/UsdShaderNodeDefHandler.h>
 #include <mayaUsd/ufe/UsdUINodeGraphNodeHandler.h>
@@ -276,7 +279,7 @@ MStatus initialize()
     runTimeMgr.setSceneSegmentHandler(g_MayaRtid, proxyShapeSceneSegmentHandler);
 #endif
 
-#ifdef UFE_V4_FEATURES_AVAILABLE
+#if defined(UFE_V4_FEATURES_AVAILABLE) || (UFE_MAJOR_VERSION == 3 && UFE_CAMERAHANDLER_HAS_FINDALL)
     // set up the ProxyShapeCameraHandler
     g_MayaCameraHandler = runTimeMgr.cameraHandler(g_MayaRtid);
     auto proxyShapeCameraHandler = ProxyShapeCameraHandler::create(g_MayaCameraHandler);

lib/mayaUsd/ufe/ProxyShapeCameraHandler.cpp

@@ -31,10 +31,14 @@ PXR_NAMESPACE_USING_DIRECTIVE
 namespace MAYAUSD_NS_DEF {
 namespace ufe {
 
+#if UFE_MAJOR_VERSION == 3 && UFE_CAMERAHANDLER_HAS_FINDALL
+MAYAUSD_VERIFY_CLASS_SETUP(Ufe::CameraHandler_v3_4, ProxyShapeCameraHandler);
+#else
 MAYAUSD_VERIFY_CLASS_SETUP(Ufe::CameraHandler, ProxyShapeCameraHandler);
+#endif // UFE_CAMERAHANDLER_HAS_FINDALL
 
-ProxyShapeCameraHandler::ProxyShapeCameraHandler(const Ufe::CameraHandler::Ptr& mayaCameraHandler)
-    : Ufe::CameraHandler()
+ProxyShapeCameraHandler::ProxyShapeCameraHandler(const CAMERAHANDLERBASE::Ptr& mayaCameraHandler)
+    : CAMERAHANDLERBASE()
     , _mayaCameraHandler(mayaCameraHandler)
 {
 }
@@ -43,7 +47,8 @@ ProxyShapeCameraHandler::ProxyShapeCameraHandler(const Ufe::CameraHandler::Ptr&
 ProxyShapeCameraHandler::Ptr
 ProxyShapeCameraHandler::create(const Ufe::CameraHandler::Ptr& mayaCameraHandler)
 {
-    return std::make_shared<ProxyShapeCameraHandler>(mayaCameraHandler);
+    auto mayaCameraHandlerBase = std::static_pointer_cast<CAMERAHANDLERBASE>(mayaCameraHandler);
+    return std::make_shared<ProxyShapeCameraHandler>(mayaCameraHandlerBase);
 }
 
 //------------------------------------------------------------------------------

lib/mayaUsd/ufe/ProxyShapeCameraHandler.h

@@ -23,13 +23,19 @@
 namespace MAYAUSD_NS_DEF {
 namespace ufe {
 
+#if UFE_MAJOR_VERSION == 3 && UFE_CAMERAHANDLER_HAS_FINDALL
+#define CAMERAHANDLERBASE Ufe::CameraHandler_v3_4
+#else
+#define CAMERAHANDLERBASE Ufe::CameraHandler
+#endif // UFE_CAMERAHANDLER_HAS_FINDALL
+
 //! \brief Interface to create a ProxyShapeCameraHandler interface object.
-class MAYAUSD_CORE_PUBLIC ProxyShapeCameraHandler : public Ufe::CameraHandler
+class MAYAUSD_CORE_PUBLIC ProxyShapeCameraHandler : public CAMERAHANDLERBASE
 {
 public:
     typedef std::shared_ptr<ProxyShapeCameraHandler> Ptr;
 
-    ProxyShapeCameraHandler(const Ufe::CameraHandler::Ptr&);
+    ProxyShapeCameraHandler(const CAMERAHANDLERBASE::Ptr&);
 
     MAYAUSD_DISALLOW_COPY_MOVE_AND_ASSIGNMENT(ProxyShapeCameraHandler);
 
@@ -42,7 +48,7 @@ class MAYAUSD_CORE_PUBLIC ProxyShapeCameraHandler : public Ufe::CameraHandler
     Ufe::Selection find_(const Ufe::Path& path) const override;
 
 private:
-    Ufe::CameraHandler::Ptr _mayaCameraHandler;
+    CAMERAHANDLERBASE::Ptr _mayaCameraHandler;
 
 }; // ProxyShapeCameraHandler
 

lib/usdUfe/ufe/CMakeLists.txt

@@ -107,6 +107,13 @@ if (UFE_HAS_NATIVE_TYPE_METADATA)
     )
 endif()
 
+if (UFE_CAMERAHANDLER_HAS_FINDALL)
+    target_compile_definitions(${PROJECT_NAME}
+    PRIVATE
+        UFE_CAMERAHANDLER_HAS_FINDALL=1
+    )
+endif()
+
 set(HEADERS
     Global.h
     SetVariantSelectionCommand.h

lib/usdUfe/ufe/UsdCameraHandler.cpp

@@ -31,7 +31,11 @@ PXR_NAMESPACE_USING_DIRECTIVE
 
 namespace USDUFE_NS_DEF {
 
+#if UFE_MAJOR_VERSION == 3 && UFE_CAMERAHANDLER_HAS_FINDALL
+USDUFE_VERIFY_CLASS_SETUP(Ufe::CameraHandler_v3_4, UsdCameraHandler);
+#else
 USDUFE_VERIFY_CLASS_SETUP(Ufe::CameraHandler, UsdCameraHandler);
+#endif // UFE_CAMERAHANDLER_HAS_FINDALL
 
 /*static*/
 UsdCameraHandler::Ptr UsdCameraHandler::create() { return std::make_shared<UsdCameraHandler>(); }
@@ -53,7 +57,7 @@ Ufe::Camera::Ptr UsdCameraHandler::camera(const Ufe::SceneItem::Ptr& item) const
     return UsdCamera::create(usdItem);
 }
 
-#ifdef UFE_V4_FEATURES_AVAILABLE
+#if defined(UFE_V4_FEATURES_AVAILABLE) || (UFE_MAJOR_VERSION == 3 && UFE_CAMERAHANDLER_HAS_FINDALL)
 Ufe::Selection UsdCameraHandler::find_(const Ufe::Path& path) const
 {
     TF_VERIFY(path.runTimeId() == getUsdRunTimeId());
@@ -80,6 +84,6 @@ Ufe::Selection UsdCameraHandler::find(
     }
     return result;
 }
-#endif
+#endif // UFE_MAJOR_VERSION == 3 && UFE_CAMERAHANDLER_HAS_FINDALL
 
 } // namespace USDUFE_NS_DEF

lib/usdUfe/ufe/UsdCameraHandler.h

@@ -25,7 +25,11 @@
 namespace USDUFE_NS_DEF {
 
 //! \brief Interface to create a UsdCameraHandler interface object.
+#if UFE_MAJOR_VERSION == 3 && UFE_CAMERAHANDLER_HAS_FINDALL
+class USDUFE_PUBLIC UsdCameraHandler : public Ufe::CameraHandler_v3_4
+#else
 class USDUFE_PUBLIC UsdCameraHandler : public Ufe::CameraHandler
+#endif // UFE_CAMERAHANDLER_HAS_FINDALL
 {
 public:
     typedef std::shared_ptr<UsdCameraHandler> Ptr;
@@ -40,12 +44,12 @@ class USDUFE_PUBLIC UsdCameraHandler : public Ufe::CameraHandler
     // Ufe::CameraHandler overrides
     Ufe::Camera::Ptr camera(const Ufe::SceneItem::Ptr& item) const override;
 
-#ifdef UFE_V4_FEATURES_AVAILABLE
+#if defined(UFE_V4_FEATURES_AVAILABLE) || (UFE_MAJOR_VERSION == 3 && UFE_CAMERAHANDLER_HAS_FINDALL)
     Ufe::Selection find_(const Ufe::Path& path) const override;
 
     static Ufe::Selection
     find(const Ufe::Path& stagePath, const Ufe::Path& searchPath, const PXR_NS::UsdPrim& prim);
-#endif
+#endif // UFE_CAMERAHANDLER_HAS_FINDALL
 
 }; // UsdCameraHandler