diff options
Diffstat (limited to 'bridges/source/cpp_uno/msvc_win32_intel/uno2cpp.cxx')
| -rw-r--r-- | bridges/source/cpp_uno/msvc_win32_intel/uno2cpp.cxx | 460 |
1 files changed, 460 insertions, 0 deletions
diff --git a/bridges/source/cpp_uno/msvc_win32_intel/uno2cpp.cxx b/bridges/source/cpp_uno/msvc_win32_intel/uno2cpp.cxx new file mode 100644 index 000000000..570495294 --- /dev/null +++ b/bridges/source/cpp_uno/msvc_win32_intel/uno2cpp.cxx @@ -0,0 +1,460 @@ +/* -*- 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 <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 <msvc/except.hxx> + +using namespace ::com::sun::star; + +namespace +{ + +inline void callVirtualMethod( + void * pAdjustedThisPtr, sal_Int32 nVtableIndex, + void * pRegisterReturn, typelib_TypeClass eReturnTypeClass, + sal_Int32 * pStackLongs, sal_Int32 nStackLongs ) +{ + // parameter list is mixed list of * and values + // reference parameters are pointers + + assert(pStackLongs && pAdjustedThisPtr); + static_assert( (sizeof(void *) == 4) && + (sizeof(sal_Int32) == 4), "### unexpected size of int!" ); + +__asm + { + mov eax, nStackLongs + test eax, eax + je Lcall + // copy values + mov ecx, eax + shl eax, 2 // sizeof(sal_Int32) == 4 + add eax, pStackLongs // params stack space +Lcopy: sub eax, 4 + push dword ptr [eax] + dec ecx + jne Lcopy +Lcall: + // call + mov ecx, pAdjustedThisPtr + push ecx // this ptr + mov edx, [ecx] // pvft + mov eax, nVtableIndex + shl eax, 2 // sizeof(void *) == 4 + add edx, eax + call [edx] // interface method call must be __cdecl!!! + + // register return + mov ecx, eReturnTypeClass + cmp ecx, typelib_TypeClass_VOID + je Lcleanup + mov ebx, pRegisterReturn +// int32 + cmp ecx, typelib_TypeClass_LONG + je Lint32 + cmp ecx, typelib_TypeClass_UNSIGNED_LONG + je Lint32 + cmp ecx, typelib_TypeClass_ENUM + je Lint32 +// int8 + cmp ecx, typelib_TypeClass_BOOLEAN + je Lint8 + cmp ecx, typelib_TypeClass_BYTE + je Lint8 +// int16 + cmp ecx, typelib_TypeClass_CHAR + je Lint16 + cmp ecx, typelib_TypeClass_SHORT + je Lint16 + cmp ecx, typelib_TypeClass_UNSIGNED_SHORT + je Lint16 +// float + cmp ecx, typelib_TypeClass_FLOAT + je Lfloat +// double + cmp ecx, typelib_TypeClass_DOUBLE + je Ldouble +// int64 + cmp ecx, typelib_TypeClass_HYPER + je Lint64 + cmp ecx, typelib_TypeClass_UNSIGNED_HYPER + je Lint64 + jmp Lcleanup // no simple type +Lint8: + mov byte ptr [ebx], al + jmp Lcleanup +Lint16: + mov word ptr [ebx], ax + jmp Lcleanup +Lfloat: + fstp dword ptr [ebx] + jmp Lcleanup +Ldouble: + fstp qword ptr [ebx] + jmp Lcleanup +Lint64: + mov dword ptr [ebx], eax + mov dword ptr [ebx+4], edx + jmp Lcleanup +Lint32: + mov dword ptr [ebx], eax + jmp Lcleanup +Lcleanup: + // cleanup stack (obsolete though because of function) + mov eax, nStackLongs + shl eax, 2 // sizeof(sal_Int32) == 4 + add eax, 4 // this ptr + add esp, eax + } +} + +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 ) throw () +{ + // max space for: [complex ret ptr], values|ptr ... + char * pCppStack = (char *)alloca( sizeof(sal_Int32) + (nParams * sizeof(sal_Int64)) ); + char * pCppStackStart = pCppStack; + + // return type + typelib_TypeDescription * pReturnTD = nullptr; + TYPELIB_DANGER_GET( &pReturnTD, pReturnTypeRef ); + assert(pReturnTD); + + void * pCppReturn = nullptr; // if != 0 && != pUnoReturn, needs reconversion + + if (pReturnTD) + { + if (bridges::cpp_uno::shared::isSimpleType( pReturnTD )) + { + pCppReturn = pUnoReturn; // direct way for simple types + } + else + { + // complex return via ptr + pCppReturn = *(void **)pCppStack + = (bridges::cpp_uno::shared::relatesToInterfaceType( + pReturnTD ) + ? alloca( pReturnTD->nSize ) + : pUnoReturn); // direct way + pCppStack += sizeof(void *); + } + } + + // stack space + + static_assert(sizeof(void *) == sizeof(sal_Int32), "### unexpected size!"); + // args + void ** pCppArgs = (void **)alloca( 3 * sizeof(void *) * nParams ); + // indices of values this have to be converted (interface conversion cpp<=>uno) + sal_Int32 * pTempIndexes = (sal_Int32 *)(pCppArgs + nParams); + // type descriptions for reconversions + typelib_TypeDescription ** pTempParamTD = (typelib_TypeDescription **)(pCppArgs + (2 * nParams)); + + sal_Int32 nTempIndexes = 0; + + for (int nPos = 0; nPos < nParams; ++nPos) + { + 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( + pCppArgs[nPos] = pCppStack, pUnoArgs[nPos], pParamTD, + pThis->getBridge()->getUno2Cpp() ); + + switch (pParamTD->eTypeClass) + { + case typelib_TypeClass_HYPER: + case typelib_TypeClass_UNSIGNED_HYPER: + case typelib_TypeClass_DOUBLE: + pCppStack += sizeof(sal_Int32); // extra long + break; + default: + break; + } + // 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( + *(void **)pCppStack = pCppArgs[nPos] = alloca( pParamTD->nSize ), + pParamTD ); + + // default constructed for C++ call + pTempIndexes[nTempIndexes] = nPos; + + // will be released at reconversion + pTempParamTD[nTempIndexes++] = pParamTD; + } + // is in/inout + else if (bridges::cpp_uno::shared::relatesToInterfaceType(pParamTD)) + { + ::uno_copyAndConvertData( + *(void **)pCppStack = pCppArgs[nPos] = alloca( pParamTD->nSize ), + pUnoArgs[nPos], pParamTD, + pThis->getBridge()->getUno2Cpp() ); + + // has to be reconverted + pTempIndexes[nTempIndexes] = nPos; + + // will be released at reconversion + pTempParamTD[nTempIndexes++] = pParamTD; + } + else // direct way + { + *(void **)pCppStack = pCppArgs[nPos] = pUnoArgs[nPos]; + // no longer needed + TYPELIB_DANGER_RELEASE( pParamTD ); + } + } + pCppStack += sizeof(sal_Int32); // standard parameter length + } + + __try + { + // pCppI is msci this pointer + callVirtualMethod( + reinterpret_cast< void ** >(pThis->getCppI()) + aVtableSlot.offset, + aVtableSlot.index, + pCppReturn, pReturnTD->eTypeClass, + (sal_Int32 *)pCppStackStart, + (pCppStack - pCppStackStart) / sizeof(sal_Int32) ); + } + __except (msvc_filterCppException( + GetExceptionInformation(), + *ppUnoExc, pThis->getBridge()->getCpp2Uno() )) + { + // *ppUnoExc was constructed by filter function + // temporary params + while (nTempIndexes--) + { + sal_Int32 nIndex = pTempIndexes[nTempIndexes]; + // destroy temp C++ param => C++: every param was constructed + ::uno_destructData( + pCppArgs[nIndex], pTempParamTD[nTempIndexes], + uno::cpp_release ); + TYPELIB_DANGER_RELEASE( pTempParamTD[nTempIndexes] ); + } + + // return type + if (pReturnTD) + TYPELIB_DANGER_RELEASE( pReturnTD ); + + return; + } + + // NO exception occurred + *ppUnoExc = nullptr; + + // reconvert temporary params + while (nTempIndexes--) + { + int nIndex = pTempIndexes[nTempIndexes]; + typelib_TypeDescription * pParamTD = + pTempParamTD[nTempIndexes]; + + if (pParams[nIndex].bIn) + { + if (pParams[nIndex].bOut) // inout + { + ::uno_destructData( + pUnoArgs[nIndex], pParamTD, nullptr ); // destroy UNO value + ::uno_copyAndConvertData( + pUnoArgs[nIndex], pCppArgs[nIndex], pParamTD, + pThis->getBridge()->getCpp2Uno() ); + } + } + else // pure out + { + ::uno_copyAndConvertData( + pUnoArgs[nIndex], pCppArgs[nIndex], pParamTD, + pThis->getBridge()->getCpp2Uno() ); + } + + // destroy temp C++ param => C++: every param was constructed + ::uno_destructData( + pCppArgs[nIndex], pParamTD, uno::cpp_release ); + + TYPELIB_DANGER_RELEASE( pParamTD ); + } + + // return value + if (pCppReturn && pUnoReturn != pCppReturn) + { + ::uno_copyAndConvertData( + pUnoReturn, pCppReturn, pReturnTD, + pThis->getBridge()->getCpp2Uno() ); + ::uno_destructData( + pCppReturn, pReturnTD, uno::cpp_release ); + } + + // return type + if ( pReturnTD ) + TYPELIB_DANGER_RELEASE( pReturnTD ); +} + +} // namespace + +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); + + switch (pMemberTD->eTypeClass) + { + case typelib_TypeClass_INTERFACE_ATTRIBUTE: + { + 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 = sal_True; + aParam.bOut = sal_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: + { + VtableSlot aVtableSlot( + getVtableSlot( + reinterpret_cast< + typelib_InterfaceMethodTypeDescription const * >( + pMemberTD))); + + switch (aVtableSlot.index) + { + 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< uno::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: + typelib_InterfaceMethodTypeDescription const* pMethodTD + = reinterpret_cast<typelib_InterfaceMethodTypeDescription const *>(pMemberTD); + + cpp_call(pThis, aVtableSlot, pMethodTD->pReturnTypeRef, pMethodTD->nParams, pMethodTD->pParams, + pReturn, pArgs, ppException); + } + break; + } + default: + { + uno::RuntimeException aExc("Illegal member type description!", uno::Reference<uno::XInterface>()); + + uno::Type const & rExcType = cppu::UnoType<decltype(aExc)>::get(); + // binary identical null reference + ::uno_type_any_construct(*ppException, &aExc, rExcType.getTypeLibType(), nullptr); + } + } +} + +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |