Update to XMP SDK CS6

1 files changed, 169 insertions, 0 deletions

diff --git a/XMPFiles/source/PluginHandler/Module.cpp b/XMPFiles/source/PluginHandler/Module.cpp
new file mode 100644
index 0000000..91b8ea8
--- /dev/null
+++ b/XMPFiles/source/PluginHandler/Module.cpp
@@ -0,0 +1,169 @@
+// =================================================================================================
+// ADOBE SYSTEMS INCORPORATED
+// Copyright 2011 Adobe Systems Incorporated
+// All Rights Reserved
+//
+// NOTICE: Adobe permits you to use, modify, and distribute this file in accordance with the terms
+// of the Adobe license agreement accompanying it.
+// =================================================================================================
+
+#include "Module.h"
+
+namespace XMP_PLUGIN
+{
+
+PluginAPIRef Module::getPluginAPIs() 
+{ 
+	//
+	// return ref. to Plugin API, load module if not yet loaded
+	//
+	if( !mPluginAPIs && !load() )
+	{
+		XMP_Throw ( "Plugin API not available.", kXMPErr_Unavailable );
+	}
+
+	return mPluginAPIs;
+}
+
+bool Module::load()
+{
+	if( mLoaded == kModuleNotLoaded )
+	{
+		std::string errorMsg;
+
+		//
+		// load module
+		//
+		mLoaded = kModuleErrorOnLoad;
+		mHandle = LoadModule(mPath, false);
+
+		if( mHandle != NULL )
+		{
+			//
+			// get entry point function pointer
+			//
+			InitializePluginProc InitializePlugin = reinterpret_cast<InitializePluginProc>( 
+				GetFunctionPointerFromModuleImpl(mHandle, "InitializePlugin") );
+			
+			if( InitializePlugin != NULL )
+			{
+				//
+				// get module ID from plugin resource
+				//
+				std::string moduleID;
+				GetResourceDataFromModule(mHandle, "MODULE_IDENTIFIER", "txt", moduleID);
+				mPluginAPIs = new PluginAPI();
+				
+				//
+				// initialize plugin by calling entry point function
+				//
+				WXMP_Error error;
+				InitializePlugin( moduleID.c_str(), mPluginAPIs, &error );
+
+				if( error.mErrorID == kXMPErr_NoError
+					&& mPluginAPIs->mTerminatePluginProc
+					&& mPluginAPIs->mSetHostAPIProc
+					&& mPluginAPIs->mInitializeSessionProc
+					&& mPluginAPIs->mTerminateSessionProc
+					&& mPluginAPIs->mCacheFileDataProc
+					&& mPluginAPIs->mUpdateFileProc
+					&& mPluginAPIs->mWriteTempFileProc
+					)
+				{
+					//
+					// set host API at plugin
+					//
+					HostAPIRef hostAPI = PluginManager::getHostAPI( mPluginAPIs->mVersion );
+					mPluginAPIs->mSetHostAPIProc( hostAPI, &error );
+					
+					if( error.mErrorID == kXMPErr_NoError )
+					{
+						mLoaded = kModuleLoaded;
+					}
+					else
+					{
+						errorMsg = "Incompatible plugin API version. (" + moduleID + ")";
+					}
+				}
+				else
+				{
+					if( error.mErrorID != kXMPErr_NoError )
+					{
+						errorMsg = "Plugin initialization failed. (" + moduleID + ")";
+					}
+					else
+					{
+						errorMsg = "Plugin API incomplete. (" + moduleID + ")";
+					}
+				}
+			}
+			else
+			{
+				errorMsg = "Missing plugin entry point \"InitializePlugin\" in plugin " + mPath;
+			}
+
+			if( mLoaded != kModuleLoaded )
+			{
+				//
+				// plugin wasn't loaded and initialized successfully,
+				// so unload the module
+				//
+				this->unload();
+			}
+		}
+		else
+		{
+			errorMsg = "Can't load module " + mPath;
+		}
+
+		if( mLoaded != kModuleLoaded )
+		{
+			//
+			// error occurred
+			//
+			throw XMP_Error( kXMPErr_InternalFailure, errorMsg.c_str() );
+		}
+	}
+
+	return ( mLoaded == kModuleLoaded ); 
+}
+
+void Module::unload()
+{
+	WXMP_Error error;
+
+	//
+	// terminate plugin
+	//
+	if( mPluginAPIs != NULL )
+	{
+		if( mPluginAPIs->mTerminatePluginProc ) 
+        {
+            mPluginAPIs->mTerminatePluginProc( &error );
+        }
+		delete mPluginAPIs;
+		mPluginAPIs = NULL;
+	}
+
+	//
+	// unload plugin module
+	//
+	if( mLoaded != kModuleNotLoaded )
+	{
+		UnloadModule(mHandle, false);
+		mHandle = NULL;
+		if( mLoaded == kModuleLoaded )
+		{
+			//
+			// Reset mLoaded to kModuleNotLoaded, if the module was loaded successfully.
+			// Otherwise let it remain kModuleErrorOnLoad so that we won't try to load 
+			// it again if some other handler ask to do so.
+			//
+			mLoaded = kModuleNotLoaded;
+		}
+	}
+
+	CheckError( error );
+}
+
+} //namespace XMP_PLUGIN