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Diffstat (limited to 'bridges/source/cpp_uno/msvc_win32_x86-64/uno2cpp.cxx')
| -rw-r--r-- | bridges/source/cpp_uno/msvc_win32_x86-64/uno2cpp.cxx | 457 |
1 files changed, 457 insertions, 0 deletions
diff --git a/bridges/source/cpp_uno/msvc_win32_x86-64/uno2cpp.cxx b/bridges/source/cpp_uno/msvc_win32_x86-64/uno2cpp.cxx new file mode 100644 index 000000000..99f87e23d --- /dev/null +++ b/bridges/source/cpp_uno/msvc_win32_x86-64/uno2cpp.cxx @@ -0,0 +1,457 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * 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 . + */ + +#include <sal/config.h> + +#include <cassert> + +#include <malloc.h> + +#include <com/sun/star/uno/genfunc.hxx> +#include <uno/data.h> + +#include <bridge.hxx> +#include <types.hxx> +#include <unointerfaceproxy.hxx> +#include <vtables.hxx> + +#include "mscx.hxx" + +#if OSL_DEBUG_LEVEL > 1 +#include <stdio.h> +#endif + +using namespace ::com::sun::star::uno; + +namespace +{ + +bool 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 ) throw () +{ + const int MAXPARAMS = 32; + + if ( nParams > MAXPARAMS ) + { + // We have a hard limit on the number of parameters so that we + // don't need any assembler code here but can call the + // function using normal C++. + + return false; + } + + // Table with this pointer, optional complex return value ptr, and the parameters + union { + sal_Int64 i; + void *p; + double d; + } aCppParams[MAXPARAMS+2], uRetVal; + int nCppParamIndex = 0; + + // Return type + typelib_TypeDescription * pReturnTD = nullptr; + TYPELIB_DANGER_GET( &pReturnTD, pReturnTypeRef ); + assert(pReturnTD); + + // 'this' + void * pAdjustedThisPtr = reinterpret_cast<void **>( pThis->getCppI() ) + aVtableSlot.offset; + aCppParams[nCppParamIndex++].p = pAdjustedThisPtr; + + enum class ReturnKind { Void, Simple, Complex, ComplexConvert }; + ReturnKind retKind; + if (pUnoReturn == nullptr) { + retKind = ReturnKind::Void; + } else { + assert(pReturnTD != nullptr); + if (bridges::cpp_uno::shared::isSimpleType(pReturnTD)) { + retKind = ReturnKind::Simple; + } else if (bridges::cpp_uno::shared::relatesToInterfaceType(pReturnTD)) + { + retKind = ReturnKind::ComplexConvert; + aCppParams[nCppParamIndex++].p = alloca(pReturnTD->nSize); + } else { + retKind = ReturnKind::Complex; + aCppParams[nCppParamIndex++].p = pUnoReturn; + } + } + + // Indexes of values this have to be converted (interface conversion C++<=>UNO) + int pTempCppIndexes[MAXPARAMS]; + int pTempIndexes[MAXPARAMS]; + int nTempIndexes = 0; + + // Type descriptions for reconversions + typelib_TypeDescription *pTempParamTypeDescr[MAXPARAMS]; + + for ( int nPos = 0; nPos < nParams; ++nPos, ++nCppParamIndex ) + { + const typelib_MethodParameter & rParam = pParams[nPos]; + + typelib_TypeDescription * pParamTD = nullptr; + TYPELIB_DANGER_GET( &pParamTD, rParam.pTypeRef ); + + if ( !rParam.bOut && + bridges::cpp_uno::shared::isSimpleType( pParamTD ) ) + { + ::uno_copyAndConvertData( + &aCppParams[nCppParamIndex], pUnoArgs[nPos], pParamTD, + pThis->getBridge()->getUno2Cpp() ); + + // No longer needed + TYPELIB_DANGER_RELEASE( pParamTD ); + } + else // Ptr to complex value | ref + { + if ( !rParam.bIn ) // Is pure out + { + // C++ out is constructed mem, UNO out is not! + ::uno_constructData( + aCppParams[nCppParamIndex].p = alloca( pParamTD->nSize ), + pParamTD ); + + pTempCppIndexes[nTempIndexes] = nCppParamIndex; + pTempIndexes[nTempIndexes] = nPos; + + // Will be released at reconversion + pTempParamTypeDescr[nTempIndexes++] = pParamTD; + + } + // Is in/inout + else if ( bridges::cpp_uno::shared::relatesToInterfaceType( pParamTD ) ) + { + ::uno_copyAndConvertData( + aCppParams[nCppParamIndex].p = alloca( pParamTD->nSize ), + pUnoArgs[nPos], pParamTD, + pThis->getBridge()->getUno2Cpp() ); + + pTempCppIndexes[nTempIndexes] = nCppParamIndex; + pTempIndexes[nTempIndexes] = nPos; + + // Will be released at reconversion + pTempParamTypeDescr[nTempIndexes++] = pParamTD; + } + else // direct way + { + aCppParams[nCppParamIndex].p = pUnoArgs[nPos]; + + // No longer needed + TYPELIB_DANGER_RELEASE( pParamTD ); + } + } + } + + __try + { + // The first real parameter is always 'this'. + + // The Windows x64 calling convention is very regular and + // elegant (even if perhaps then slightly slower than the + // Linux x64 one): The first four parameters, never more, are + // passed in registers, as long as they are a qword in size + // or less. (If larger, a pointer to a temp copy is passed, so + // it's equivalent anyway.) Floating point values are passed + // in XMM0..3 registers, others in RCX, RDX, R8, R9. + + // Now, the nice thing for us is that when calling varargs + // functions, floating-point parameters among the four first + // ones are always passed *both* in an XMM and integer + // register. So we don't need to bother here calling the + // method different ways depending on what types of parameters + // it actually expects. We just pretend parameters 3..4 are + // doubles, and they will be passed both in XMM and integer + // registers, and the callee will find them where it + // expects. (The callee is not actually varargs, of course.) + + sal_Int64 (*pIMethod)(sal_Int64, ...) = + reinterpret_cast<sal_Int64 (*)(sal_Int64, ...)>( + (*static_cast<sal_uInt64 **>(pAdjustedThisPtr))[aVtableSlot.index]); + + double (*pFMethod)(sal_Int64, ...) = + reinterpret_cast<double (*)(sal_Int64, ...)>( + (*static_cast<sal_uInt64 **>(pAdjustedThisPtr))[aVtableSlot.index]); + + // Pass parameters 2..4 as if it was a floating-point value so + // that it gets put in both XMM and integer registers per the + // calling convention. It doesn't matter if it actually is a + // fp or not. + + if ( pReturnTD && + (pReturnTD->eTypeClass == typelib_TypeClass_FLOAT || + pReturnTD->eTypeClass == typelib_TypeClass_DOUBLE) ) + uRetVal.d = + pFMethod (aCppParams[0].i, aCppParams[1].d, aCppParams[2].d, aCppParams[3].d, + aCppParams[4].i, aCppParams[5].i, aCppParams[6].i, aCppParams[7].i, + aCppParams[8].i, aCppParams[9].i, aCppParams[10].i, aCppParams[11].i, + aCppParams[12].i, aCppParams[13].i, aCppParams[14].i, aCppParams[15].i, + aCppParams[16].i, aCppParams[17].i, aCppParams[18].i, aCppParams[19].i, + aCppParams[20].i, aCppParams[21].i, aCppParams[22].i, aCppParams[23].i, + aCppParams[24].i, aCppParams[25].i, aCppParams[26].i, aCppParams[27].i, + aCppParams[28].i, aCppParams[29].i, aCppParams[30].i, aCppParams[31].i ); + else + uRetVal.i = + pIMethod (aCppParams[0].i, aCppParams[1].d, aCppParams[2].d, aCppParams[3].d, + aCppParams[4].i, aCppParams[5].i, aCppParams[6].i, aCppParams[7].i, + aCppParams[8].i, aCppParams[9].i, aCppParams[10].i, aCppParams[11].i, + aCppParams[12].i, aCppParams[13].i, aCppParams[14].i, aCppParams[15].i, + aCppParams[16].i, aCppParams[17].i, aCppParams[18].i, aCppParams[19].i, + aCppParams[20].i, aCppParams[21].i, aCppParams[22].i, aCppParams[23].i, + aCppParams[24].i, aCppParams[25].i, aCppParams[26].i, aCppParams[27].i, + aCppParams[28].i, aCppParams[29].i, aCppParams[30].i, aCppParams[31].i ); + } + __except (CPPU_CURRENT_NAMESPACE::mscx_filterCppException( + GetExceptionInformation(), + *ppUnoExc, pThis->getBridge()->getCpp2Uno() )) + { + // *ppUnoExc was constructed by filter function. + // Temporary params + while ( nTempIndexes-- ) + { + int nCppIndex = pTempCppIndexes[nTempIndexes]; + // Destroy temp C++ param => C++: every param was constructed + ::uno_destructData( + aCppParams[nCppIndex].p, pTempParamTypeDescr[nTempIndexes], + cpp_release ); + TYPELIB_DANGER_RELEASE( pTempParamTypeDescr[nTempIndexes] ); + } + // Return type + if ( pReturnTD ) + TYPELIB_DANGER_RELEASE( pReturnTD ); + + // End here + return true; + } + + // No exception occurred + *ppUnoExc = nullptr; + + // Reconvert temporary params + while ( nTempIndexes-- ) + { + int nCppIndex = pTempCppIndexes[nTempIndexes]; + int nIndex = pTempIndexes[nTempIndexes]; + typelib_TypeDescription * pParamTD = + pTempParamTypeDescr[nTempIndexes]; + + if ( pParams[nIndex].bIn ) + { + if ( pParams[nIndex].bOut ) // Inout + { + ::uno_destructData( + pUnoArgs[nIndex], pParamTD, nullptr ); // Destroy UNO value + ::uno_copyAndConvertData( + pUnoArgs[nIndex], aCppParams[nCppIndex].p, pParamTD, + pThis->getBridge()->getCpp2Uno() ); + } + } + else // Pure out + { + ::uno_copyAndConvertData( + pUnoArgs[nIndex], aCppParams[nCppIndex].p, pParamTD, + pThis->getBridge()->getCpp2Uno() ); + } + + // Destroy temp C++ param => C++: every param was constructed + ::uno_destructData( + aCppParams[nCppIndex].p, pParamTD, cpp_release ); + + TYPELIB_DANGER_RELEASE( pParamTD ); + } + + // Return value + switch (retKind) { + case ReturnKind::Void: + break; + case ReturnKind::Simple: + *static_cast<sal_Int64*>(pUnoReturn) = uRetVal.i; + break; + case ReturnKind::Complex: + assert(uRetVal.p == pUnoReturn); + break; + case ReturnKind::ComplexConvert: + assert(uRetVal.p == aCppParams[1].p); + ::uno_copyAndConvertData( + pUnoReturn, uRetVal.p, pReturnTD, + pThis->getBridge()->getCpp2Uno() ); + ::uno_destructData( + uRetVal.p, pReturnTD, cpp_release ); + break; + } + + if ( pReturnTD ) + TYPELIB_DANGER_RELEASE( pReturnTD ); + + return true; +} + +} + +namespace bridges::cpp_uno::shared { + +void unoInterfaceProxyDispatch( + uno_Interface * pUnoI, + const typelib_TypeDescription * pMemberTD, + void * pReturn, + void * pArgs[], + uno_Any ** ppException ) +{ + // is my surrogate + bridges::cpp_uno::shared::UnoInterfaceProxy * pThis + = static_cast< bridges::cpp_uno::shared::UnoInterfaceProxy * >(pUnoI); +#if OSL_DEBUG_LEVEL > 0 + typelib_InterfaceTypeDescription * pTypeDescr = pThis->pTypeDescr; +#endif + + switch (pMemberTD->eTypeClass) + { + case typelib_TypeClass_INTERFACE_ATTRIBUTE: + { +#if OSL_DEBUG_LEVEL > 0 + // determine vtable call index + sal_Int32 nMemberPos = reinterpret_cast<typelib_InterfaceMemberTypeDescription const *>(pMemberTD)->nPosition; + assert(nMemberPos < pTypeDescr->nAllMembers); +#endif + VtableSlot aVtableSlot( + getVtableSlot( + reinterpret_cast< + typelib_InterfaceAttributeTypeDescription const * >( + pMemberTD))); + if ( pReturn ) + { + // Is GET + cpp_call( + pThis, aVtableSlot, + reinterpret_cast<typelib_InterfaceAttributeTypeDescription const *>(pMemberTD)->pAttributeTypeRef, + 0, nullptr, // no params + pReturn, pArgs, ppException ); + } + else + { + // Is SET + typelib_MethodParameter aParam; + aParam.pTypeRef = + reinterpret_cast<typelib_InterfaceAttributeTypeDescription const *>(pMemberTD)->pAttributeTypeRef; + aParam.bIn = true; + aParam.bOut = false; + + typelib_TypeDescriptionReference * pReturnTypeRef = nullptr; + OUString aVoidName("void"); + typelib_typedescriptionreference_new( + &pReturnTypeRef, typelib_TypeClass_VOID, aVoidName.pData ); + + 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: + { +#if OSL_DEBUG_LEVEL > 0 + // determine vtable call index + sal_Int32 nMemberPos = reinterpret_cast<typelib_InterfaceMemberTypeDescription const *>(pMemberTD)->nPosition; + assert(nMemberPos < pTypeDescr->nAllMembers); +#endif + VtableSlot aVtableSlot( + getVtableSlot( + reinterpret_cast< + typelib_InterfaceMethodTypeDescription const * >( + pMemberTD))); + + switch (aVtableSlot.index) + { + // Standard calls + case 1: // Acquire UNO interface + (*pUnoI->acquire)( pUnoI ); + *ppException = nullptr; + break; + case 2: // Release UNO interface + (*pUnoI->release)( pUnoI ); + *ppException = nullptr; + break; + case 0: // queryInterface() opt + { + typelib_TypeDescription * pTD = nullptr; + TYPELIB_DANGER_GET( &pTD, static_cast< Type * >( pArgs[0] )->getTypeLibType() ); + + if ( pTD ) + { + uno_Interface * pInterface = nullptr; + (*pThis->getBridge()->getUnoEnv()->getRegisteredInterface)( + pThis->getBridge()->getUnoEnv(), + reinterpret_cast<void **>(&pInterface), pThis->oid.pData, reinterpret_cast<typelib_InterfaceTypeDescription *>(pTD) ); + + if ( pInterface ) + { + ::uno_any_construct( + static_cast< uno_Any * >( pReturn ), + &pInterface, pTD, nullptr ); + (*pInterface->release)( pInterface ); + + TYPELIB_DANGER_RELEASE( pTD ); + + *ppException = nullptr; + break; + } + TYPELIB_DANGER_RELEASE( pTD ); + } + [[fallthrough]]; // else perform queryInterface() + } + default: + if ( ! cpp_call( + pThis, aVtableSlot, + reinterpret_cast<typelib_InterfaceMethodTypeDescription const *>(pMemberTD)->pReturnTypeRef, + reinterpret_cast<typelib_InterfaceMethodTypeDescription const *>(pMemberTD)->nParams, + reinterpret_cast<typelib_InterfaceMethodTypeDescription const *>(pMemberTD)->pParams, + pReturn, pArgs, ppException ) ) + { + RuntimeException aExc( "Too many parameters!" ); + + Type const & rExcType = cppu::UnoType<decltype(aExc)>::get(); + ::uno_type_any_construct( *ppException, &aExc, rExcType.getTypeLibType(), nullptr ); + } + } + break; + } + default: + { + RuntimeException aExc( "Illegal member type description!" ); + + Type const & rExcType = cppu::UnoType<decltype(aExc)>::get(); + // Binary identical null reference (whatever that comment means...) + ::uno_type_any_construct( *ppException, &aExc, rExcType.getTypeLibType(), nullptr ); + } + } +} + +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |