Mem release

pxr/imaging/plugin/hdRpr/CMakeLists.txt

@@ -88,6 +88,11 @@ file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/rif_models.version ${RIF_VERSION_STRING})
 list(APPEND RIF_MODEL_RESOURCE_FILES
     "${CMAKE_CURRENT_BINARY_DIR}/rif_models.version${_sep}rif_models/rif_models.version")
 
+if(HoudiniUSD_FOUND)
+    set(RESOURCE_WATCHER_H resourceWatcher.h)
+    set(RESOURCE_WATCHER_CPP resourceWatcher.cpp)
+endif()
+
 pxr_plugin(hdRpr
     DISABLE_PRECOMPILED_HEADERS
 
@@ -152,6 +157,7 @@ pxr_plugin(hdRpr
     PRIVATE_HEADERS
         baseRprim.h
         api.h
+        ${RESOURCE_WATCHER_H}
 
     RESOURCE_FILES
         plugInfo.json
@@ -163,6 +169,7 @@ pxr_plugin(hdRpr
         ${CMAKE_CURRENT_BINARY_DIR}/config.cpp
         ndrDiscoveryPlugin.cpp
         ndrParserPlugin.cpp
+        ${RESOURCE_WATCHER_CPP}
 )
 
 if(RPR_EXR_EXPORT_ENABLED)

pxr/imaging/plugin/hdRpr/renderDelegate.cpp

@@ -45,6 +45,10 @@ limitations under the License.
 #include <sstream>
 #include <cstdio>
 
+#ifdef BUILD_AS_HOUDINI_PLUGIN
+#include "resourceWatcher.h"
+#endif
+
 PXR_NAMESPACE_OPEN_SCOPE
 
 static HdRprApi* g_rprApi = nullptr;
@@ -187,9 +191,15 @@ HdRprDelegate::HdRprDelegate(HdRenderSettingsMap const& renderSettings) {
     }
 
     m_lastCreatedInstance = this;
+#ifdef BUILD_AS_HOUDINI_PLUGIN
+    InitWatcher();
+#endif
 }
 
 HdRprDelegate::~HdRprDelegate() {
+#ifdef BUILD_AS_HOUDINI_PLUGIN
+    NotifyRenderFinished();
+#endif
     g_rprApi = nullptr;
     m_lastCreatedInstance = nullptr;
 }
@@ -387,11 +397,17 @@ bool HdRprDelegate::IsPauseSupported() const {
 }
 
 bool HdRprDelegate::Pause() {
+#ifdef BUILD_AS_HOUDINI_PLUGIN
+    NotifyRenderFinished();
+#endif
     m_renderThread.PauseRender();
     return true;
 }
 
 bool HdRprDelegate::Resume() {
+#ifdef BUILD_AS_HOUDINI_PLUGIN
+    NotifyRenderStarted();
+#endif
     m_renderThread.ResumeRender();
     return true;
 }