- rework exporter interface to be based primarily on the existing IOSystem.

- implement ExportToBlob/aiExportToBlob via a custom IOSystem implementation.
- split exporter C and C++ interfaces.
+ test cases for the exporter interface

git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@913 67173fc5-114c-0410-ac8e-9d2fd5bffc1f

code/AssimpCExport.cpp

@@ -0,0 +1,105 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (ASSIMP)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2010, ASSIMP Development Team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms, 
+with or without modification, are permitted provided that the following 
+conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the ASSIMP team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the ASSIMP Development Team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file AssimpCExport.cpp
+Assimp C export interface. See Exporter.cpp for some notes.
+*/
+
+#include "AssimpPCH.h"
+
+#ifndef ASSIMP_BUILD_NO_EXPORT
+#include "CInterfaceIOWrapper.h" 
+
+using namespace Assimp;
+
+// ------------------------------------------------------------------------------------------------
+ASSIMP_API size_t aiGetExportFormatCount(void)
+{
+	return Exporter().GetExportFormatCount();
+}
+
+
+// ------------------------------------------------------------------------------------------------
+ASSIMP_API const aiExportFormatDesc* aiGetExportFormatDescription( size_t pIndex)
+{
+	return Exporter().GetExportFormatDescription(pIndex);
+}
+
+
+// ------------------------------------------------------------------------------------------------
+ASSIMP_API aiReturn aiExportScene( const aiScene* pScene, const char* pFormatId, const char* pFileName )
+{
+	return ::aiExportSceneEx(pScene,pFormatId,pFileName,NULL);
+}
+
+
+// ------------------------------------------------------------------------------------------------
+ASSIMP_API aiReturn aiExportSceneEx( const aiScene* pScene, const char* pFormatId, const char* pFileName, aiFileIO* pIO)
+{
+	Exporter exp;
+
+	if (pIO) {
+		exp.SetIOHandler(new CIOSystemWrapper(pIO));
+	}
+	return exp.Export(pScene,pFormatId,pFileName);
+}
+
+
+// ------------------------------------------------------------------------------------------------
+ASSIMP_API const C_STRUCT aiExportDataBlob* aiExportSceneToBlob( const aiScene* pScene, const char* pFormatId )
+{
+	Exporter exp;
+	if (!exp.ExportToBlob(pScene,pFormatId)) {
+		return NULL;
+	}
+	const aiExportDataBlob* blob = exp.GetOrphanedBlob();
+	ai_assert(blob);
+
+	return blob;
+}
+
+// ------------------------------------------------------------------------------------------------
+ASSIMP_API C_STRUCT void aiReleaseExportData( const aiExportDataBlob* pData )
+{
+	delete pData;
+}
+
+#endif // !ASSIMP_BUILD_NO_EXPORT