/**************************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/



// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_bridges.hxx"

#include <sal/alloca.h>

#include <com/sun/star/uno/genfunc.hxx>
#include "com/sun/star/uno/RuntimeException.hpp"
#include <uno/data.h>

#include "bridges/cpp_uno/shared/bridge.hxx"
#include "bridges/cpp_uno/shared/types.hxx"
#include "bridges/cpp_uno/shared/unointerfaceproxy.hxx"
#include "bridges/cpp_uno/shared/vtables.hxx"

#include "cc50_solaris_intel.hxx"

using namespace rtl;
using namespace com::sun::star::uno;

namespace
{

extern "C" {
	void callVirtualMethod(
		void * pAdjustedThisPtr,
		sal_Int32 nVtableIndex,
		void * pRegisterReturn,
		typelib_TypeClass eReturnType,
		sal_Int32 * pStackLongs,
		sal_Int32 nStackLongs
		);
}

//==================================================================================================
static inline void cpp_call(
	bridges::cpp_uno::shared::UnoInterfaceProxy * pThis,
	bridges::cpp_uno::shared::VtableSlot aVtableSlot,
	typelib_TypeDescriptionReference * pReturnTypeRef,
	sal_Int32 nParams, typelib_MethodParameter * pParams,
	void * pUnoReturn, void * pUnoArgs[], uno_Any ** ppUnoExc )
{
  	// max space for: [complex ret ptr], values|ptr ...
  	char * pCppStack = (char *)alloca( ((nParams+3) * sizeof(sal_Int64)) );
  	char * pCppStackStart = pCppStack;
	
  	// return
	typelib_TypeDescription * pReturnTypeDescr = 0;
	TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef );
	OSL_ENSURE( pReturnTypeDescr, "### expected return type description!" );
	
  	void * pCppReturn = 0; // if != 0 && != pUnoReturn, needs reconversion
	
	void * pReturnSpace = 0;
	
	if (pReturnTypeDescr)
	{
		if (bridges::cpp_uno::shared::isSimpleType( pReturnTypeDescr ))
		{
			pCppReturn = pUnoReturn; // direct way for simple types
		}
		else
		{
			// complex return via ptr
			pCppReturn = *(void **)pCppStack
                = (bridges::cpp_uno::shared::relatesToInterfaceType(
                       pReturnTypeDescr )
                   ? alloca( pReturnTypeDescr->nSize )
                   : pUnoReturn); // direct way
			pCppStack += sizeof(void *);
		}
	}
	// push this
    void * pAdjustedThisPtr = reinterpret_cast< void ** >(pThis->getCppI())
        + aVtableSlot.offset;
	*(void**)pCppStack = pAdjustedThisPtr;
	pCppStack += sizeof( void* );
	
	const int nMaxParams = 32;
	// args
	void * args_buffer[3 * nMaxParams];
	void ** pCppArgs  = (void **)(nParams > nMaxParams ? rtl_allocateMemory( 3 * sizeof(void *) * nParams ) : args_buffer);
	// indizes of values this have to be converted (interface conversion cpp<=>uno)
	sal_Int32 * pTempIndizes = (sal_Int32 *)(pCppArgs + nParams);
	// type descriptions for reconversions
	typelib_TypeDescription ** ppTempParamTypeDescr = (typelib_TypeDescription **)(pCppArgs + (2 * nParams));

  	sal_Int32 nTempIndizes   = 0;

	const int nTempBufferSize = 256;
	sal_Int32 nTempBufferPos = 0;
	long params_buffer[nTempBufferSize];
	
  	for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos )
  	{
		const typelib_MethodParameter & rParam = pParams[nPos];
		typelib_TypeDescription * pParamTypeDescr = 0;
		TYPELIB_DANGER_GET( &pParamTypeDescr, rParam.pTypeRef );
		
		if (!rParam.bOut
            && bridges::cpp_uno::shared::isSimpleType( pParamTypeDescr ))
		{
			pCppArgs[ nPos ] = pCppStack;
			uno_copyAndConvertData( pCppArgs[nPos], pUnoArgs[nPos], pParamTypeDescr,
									pThis->getBridge()->getUno2Cpp() );
			
			switch (pParamTypeDescr->eTypeClass)
			{
			case typelib_TypeClass_HYPER:
			case typelib_TypeClass_UNSIGNED_HYPER:
			case typelib_TypeClass_DOUBLE:
				pCppStack += sizeof(sal_Int32); // extra long
			}
			// no longer needed
			TYPELIB_DANGER_RELEASE( pParamTypeDescr );
		}
		else // ptr to complex value | ref
		{
			if (! rParam.bIn) // is pure out
			{
				// cpp out is constructed mem, uno out is not!
				if (pParamTypeDescr->nSize > (sizeof(long) * (nTempBufferSize - nTempBufferPos)))
				{
					uno_constructData(
						*(void **)pCppStack = pCppArgs[nPos] = rtl_allocateMemory( pParamTypeDescr->nSize ),
						pParamTypeDescr );
					pTempIndizes[nTempIndizes] = nPos | 0x80000000; // default constructed for cpp call
				}
				else
				{
					uno_constructData(
						*(void **)pCppStack = pCppArgs[nPos] = (params_buffer + nTempBufferPos),
						pParamTypeDescr );
					pTempIndizes[nTempIndizes] = nPos; // default constructed for cpp call
					nTempBufferPos += (pParamTypeDescr->nSize / sizeof(long)) +1;
				}
				// will be released at reconversion
				ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr;
			}
			// is in/inout
			else if (bridges::cpp_uno::shared::relatesToInterfaceType(
                         pParamTypeDescr ))
			{
				if (pParamTypeDescr->nSize > (sizeof(long)*(nTempBufferSize - nTempBufferPos)))
				{
					uno_copyAndConvertData(
						*(void **)pCppStack = pCppArgs[nPos] = rtl_allocateMemory( pParamTypeDescr->nSize ),
						pUnoArgs[nPos], pParamTypeDescr,
                        pThis->getBridge()->getUno2Cpp() );
					pTempIndizes[nTempIndizes] = nPos | 0x80000000; // has to be reconverted
				}
				else
				{
					uno_copyAndConvertData(
						*(void **)pCppStack = pCppArgs[nPos] = (params_buffer + nTempBufferPos),
						pUnoArgs[nPos], pParamTypeDescr,
                        pThis->getBridge()->getUno2Cpp() );
					pTempIndizes[nTempIndizes] = nPos; // has to be reconverted
					nTempBufferPos += (pParamTypeDescr->nSize / sizeof(long)) +1;
				}
				// will be released at reconversion
				ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr;
			}
			else // direct way
			{
				*(void **)pCppStack = pCppArgs[nPos] = pUnoArgs[nPos];
				// no longer needed
				TYPELIB_DANGER_RELEASE( pParamTypeDescr );
			}
		}
		pCppStack += sizeof(sal_Int32); // standard parameter length
  	}

 	try
  	{
		int nStackLongs = (pCppStack - pCppStackStart)/sizeof(sal_Int32);
		if( nStackLongs & 1 )
			// stack has to be 8 byte aligned
			nStackLongs++;

		callVirtualMethod(
			pAdjustedThisPtr, aVtableSlot.index,
			pCppReturn,
			pReturnTypeDescr->eTypeClass,
			(sal_Int32 *)pCppStackStart,
			nStackLongs
			);
	
		// NO exception occured...
		*ppUnoExc = 0;
		
		// reconvert temporary params
		for ( ; nTempIndizes--; )
		{
			sal_Int32 nIndex = pTempIndizes[nTempIndizes];
			sal_Bool bAllocated = (nIndex & 0x80000000) != 0;
			nIndex &= 0x7fffffff;
			typelib_TypeDescription * pParamTypeDescr = ppTempParamTypeDescr[nTempIndizes];
			
			if (pParams[nIndex].bIn)
			{
				if (pParams[nIndex].bOut) // inout
				{
					uno_destructData( pUnoArgs[nIndex], pParamTypeDescr, 0 ); // destroy uno value
					uno_copyAndConvertData( pUnoArgs[nIndex], pCppArgs[nIndex], pParamTypeDescr,
											pThis->getBridge()->getCpp2Uno() );
				}
			}
			else // pure out
			{
				uno_copyAndConvertData( pUnoArgs[nIndex], pCppArgs[nIndex], pParamTypeDescr,
										pThis->getBridge()->getCpp2Uno() );
			}
			// destroy temp cpp param => cpp: every param was constructed
			uno_destructData(
                pCppArgs[nIndex], pParamTypeDescr,
                reinterpret_cast< uno_ReleaseFunc >(cpp_release) );

			if (bAllocated)
				rtl_freeMemory( pCppArgs[nIndex] );
			TYPELIB_DANGER_RELEASE( pParamTypeDescr );
		}
		// return value
		if (pCppReturn && pUnoReturn != pCppReturn)
		{
			uno_copyAndConvertData( pUnoReturn, pCppReturn, pReturnTypeDescr,
									pThis->getBridge()->getCpp2Uno() );
			uno_destructData(
                pCppReturn, pReturnTypeDescr,
                reinterpret_cast< uno_ReleaseFunc >(cpp_release) );
		}
 	}
 	catch( ... )
 	{
        void* pExc = __Crun::ex_get();
        const char* pName = __Cimpl::ex_name();

        // get exception
        CPPU_CURRENT_NAMESPACE::cc50_solaris_intel_fillUnoException( 
            pExc, pName, *ppUnoExc,
            pThis->getBridge()->getCpp2Uno());

		// temporary params
		for ( ; nTempIndizes--; )
		{
			sal_Int32 nIndex = pTempIndizes[nTempIndizes];
			sal_Bool bAllocated = (nIndex & 0x80000000) != 0;
			nIndex &= 0x7fffffff;
			// destroy temp cpp param => cpp: every param was constructed
			uno_destructData(
                pCppArgs[nIndex], ppTempParamTypeDescr[nTempIndizes],
                reinterpret_cast< uno_ReleaseFunc >(cpp_release) );
			if (bAllocated)
				rtl_freeMemory( pCppArgs[nIndex] );
			TYPELIB_DANGER_RELEASE( ppTempParamTypeDescr[nTempIndizes] );
		}
		// return type
		if (pReturnTypeDescr)
			TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
  	}
	
	if (pCppArgs != (void **)args_buffer)
		rtl_freeMemory( pCppArgs );
	if (pReturnSpace)
		rtl_freeMemory( pReturnSpace );
}

}

namespace bridges { namespace cpp_uno { namespace shared {

void unoInterfaceProxyDispatch(
	uno_Interface * pUnoI, const typelib_TypeDescription * pMemberDescr,
    void * pReturn, void * pArgs[], uno_Any ** ppException )
{
	// is my surrogate
	bridges::cpp_uno::shared::UnoInterfaceProxy * pThis
        = static_cast< bridges::cpp_uno::shared::UnoInterfaceProxy * >(pUnoI);
	typelib_InterfaceTypeDescription * pTypeDescr = pThis->pTypeDescr;
	
	switch (pMemberDescr->eTypeClass)
	{
	case typelib_TypeClass_INTERFACE_ATTRIBUTE:
	{
        VtableSlot aVtableSlot(
            getVtableSlot(
                reinterpret_cast<
                    typelib_InterfaceAttributeTypeDescription const * >(
                        pMemberDescr)));
		if (pReturn)
		{
			// dependent dispatch
			cpp_call(
				pThis, aVtableSlot,
				((typelib_InterfaceAttributeTypeDescription *)pMemberDescr)->pAttributeTypeRef,
				0, 0, // no params
				pReturn, pArgs, ppException );
		}
		else
		{
			// is SET
			typelib_MethodParameter aParam;
			aParam.pTypeRef =
				((typelib_InterfaceAttributeTypeDescription *)pMemberDescr)->pAttributeTypeRef;
			aParam.bIn		= sal_True;
			aParam.bOut		= sal_False;

			typelib_TypeDescriptionReference * pReturnTypeRef = 0;
			OUString aVoidName( RTL_CONSTASCII_USTRINGPARAM("void") );
			typelib_typedescriptionreference_new(
				&pReturnTypeRef, typelib_TypeClass_VOID, aVoidName.pData );
			
			// dependent dispatch
            aVtableSlot.index += 1; // get, then set method
			cpp_call(
				pThis, aVtableSlot,
				pReturnTypeRef,
				1, &aParam,
				pReturn, pArgs, ppException );
			
			typelib_typedescriptionreference_release( pReturnTypeRef );
		}
		
		break;
	}
	case typelib_TypeClass_INTERFACE_METHOD:
	{
        VtableSlot aVtableSlot(
            getVtableSlot(
                reinterpret_cast<
                    typelib_InterfaceMethodTypeDescription const * >(
                        pMemberDescr)));
		switch (aVtableSlot.index)
		{
			// standard calls
		case 1: // acquire uno interface
			(*pUnoI->acquire)( pUnoI );
			*ppException = 0;
			break;
		case 2: // release uno interface
			(*pUnoI->release)( pUnoI );
			*ppException = 0;
			break;
		case 0: // queryInterface() opt
		{
			typelib_TypeDescription * pTD = 0;
			TYPELIB_DANGER_GET( &pTD, reinterpret_cast< Type * >( pArgs[0] )->getTypeLibType() );
			if (pTD)
			{
                uno_Interface * pInterface = 0;
                (*pThis->pBridge->getUnoEnv()->getRegisteredInterface)(
                    pThis->pBridge->getUnoEnv(),
                    (void **)&pInterface, pThis->oid.pData, (typelib_InterfaceTypeDescription *)pTD );
			
                if (pInterface)
                {
                    ::uno_any_construct(
                        reinterpret_cast< uno_Any * >( pReturn ),
                        &pInterface, pTD, 0 );
                    (*pInterface->release)( pInterface );
                    TYPELIB_DANGER_RELEASE( pTD );
                    *ppException = 0;
                    break;
                }
                TYPELIB_DANGER_RELEASE( pTD );
            }
		} // else perform queryInterface()
		default:
			// dependent dispatch
			cpp_call(
				pThis, aVtableSlot,
				((typelib_InterfaceMethodTypeDescription *)pMemberDescr)->pReturnTypeRef,
				((typelib_InterfaceMethodTypeDescription *)pMemberDescr)->nParams,
				((typelib_InterfaceMethodTypeDescription *)pMemberDescr)->pParams,
				pReturn, pArgs, ppException );
		}
		break;
	}
	default:
	{
		::com::sun::star::uno::RuntimeException aExc(
			OUString( RTL_CONSTASCII_USTRINGPARAM("illegal member type description!") ),
			::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >() );
		
		Type const & rExcType = ::getCppuType( &aExc );
		// binary identical null reference
		::uno_type_any_construct( *ppException, &aExc, rExcType.getTypeLibType(), 0 );
	}
	}
}

} } }