3 files changed, 391 insertions, 0 deletions
diff --git a/thirdparty/assimp/code/CApi/AssimpCExport.cpp b/thirdparty/assimp/code/CApi/AssimpCExport.cpp
new file mode 100644
index 0000000000..7557edcfc6
--- /dev/null
+++ b/thirdparty/assimp/code/CApi/AssimpCExport.cpp
@@ -0,0 +1,156 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp 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 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.
+*/
+
+#ifndef ASSIMP_BUILD_NO_EXPORT
+
+#include "CInterfaceIOWrapper.h"
+#include <assimp/SceneCombiner.h>
+#include "Common/ScenePrivate.h"
+#include <assimp/Exporter.hpp>
+
+using namespace Assimp;
+
+// ------------------------------------------------------------------------------------------------
+ASSIMP_API size_t aiGetExportFormatCount(void)
+{
+    return Exporter().GetExportFormatCount();
+}
+
+// ------------------------------------------------------------------------------------------------
+ASSIMP_API const aiExportFormatDesc* aiGetExportFormatDescription( size_t index)
+{
+    // Note: this is valid as the index always pertains to a built-in exporter,
+    // for which the returned structure is guaranteed to be of static storage duration.
+    Exporter exporter;
+    const aiExportFormatDesc* orig( exporter.GetExportFormatDescription( index ) );
+    if (NULL == orig) {
+        return NULL;
+    }
+
+    aiExportFormatDesc *desc = new aiExportFormatDesc;
+    desc->description = new char[ strlen( orig->description ) + 1 ]();
+    ::strncpy( (char*) desc->description, orig->description, strlen( orig->description ) );
+    desc->fileExtension = new char[ strlen( orig->fileExtension ) + 1 ]();
+    ::strncpy( ( char* ) desc->fileExtension, orig->fileExtension, strlen( orig->fileExtension ) );
+    desc->id = new char[ strlen( orig->id ) + 1 ]();
+    ::strncpy( ( char* ) desc->id, orig->id, strlen( orig->id ) );
+
+    return desc;
+}
+
+// ------------------------------------------------------------------------------------------------
+ASSIMP_API void aiReleaseExportFormatDescription( const aiExportFormatDesc *desc ) {
+    if (NULL == desc) {
+        return;
+    }
+
+    delete [] desc->description;
+    delete [] desc->fileExtension;
+    delete [] desc->id;
+    delete desc;
+}
+
+// ------------------------------------------------------------------------------------------------
+ASSIMP_API void aiCopyScene(const aiScene* pIn, aiScene** pOut)
+{
+    if (!pOut || !pIn) {
+        return;
+    }
+
+    SceneCombiner::CopyScene(pOut,pIn,true);
+    ScenePriv(*pOut)->mIsCopy = true;
+}
+
+
+// ------------------------------------------------------------------------------------------------
+ASSIMP_API void aiFreeScene(const C_STRUCT aiScene* pIn)
+{
+    // note: aiReleaseImport() is also able to delete scene copies, but in addition
+    // it also handles scenes with import metadata.
+    delete pIn;
+}
+
+
+// ------------------------------------------------------------------------------------------------
+ASSIMP_API aiReturn aiExportScene( const aiScene* pScene, const char* pFormatId, const char* pFileName, unsigned int pPreprocessing )
+{
+    return ::aiExportSceneEx(pScene,pFormatId,pFileName,NULL,pPreprocessing);
+}
+
+
+// ------------------------------------------------------------------------------------------------
+ASSIMP_API aiReturn aiExportSceneEx( const aiScene* pScene, const char* pFormatId, const char* pFileName, aiFileIO* pIO, unsigned int pPreprocessing )
+{
+    Exporter exp;
+
+    if (pIO) {
+        exp.SetIOHandler(new CIOSystemWrapper(pIO));
+    }
+    return exp.Export(pScene,pFormatId,pFileName,pPreprocessing);
+}
+
+
+// ------------------------------------------------------------------------------------------------
+ASSIMP_API const C_STRUCT aiExportDataBlob* aiExportSceneToBlob( const aiScene* pScene, const char* pFormatId, unsigned int pPreprocessing  )
+{
+    Exporter exp;
+    if (!exp.ExportToBlob(pScene,pFormatId,pPreprocessing)) {
+        return NULL;
+    }
+    const aiExportDataBlob* blob = exp.GetOrphanedBlob();
+    ai_assert(blob);
+
+    return blob;
+}
+
+// ------------------------------------------------------------------------------------------------
+ASSIMP_API C_STRUCT void aiReleaseExportBlob( const aiExportDataBlob* pData )
+{
+    delete pData;
+}
+
+#endif // !ASSIMP_BUILD_NO_EXPORT
diff --git a/thirdparty/assimp/code/CApi/CInterfaceIOWrapper.cpp b/thirdparty/assimp/code/CApi/CInterfaceIOWrapper.cpp
new file mode 100644
index 0000000000..5a3a49565a
--- /dev/null
+++ b/thirdparty/assimp/code/CApi/CInterfaceIOWrapper.cpp
@@ -0,0 +1,136 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp 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 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 aiFileIO -> IOSystem wrapper*/
+
+#include "CInterfaceIOWrapper.h"
+
+namespace Assimp    {
+
+CIOStreamWrapper::~CIOStreamWrapper(void)
+{
+    /* Various places depend on this destructor to close the file */
+    if (mFile) {
+        mIO->mFileSystem->CloseProc(mIO->mFileSystem, mFile);
+        mFile = nullptr;
+    }
+}
+
+// ...................................................................
+size_t CIOStreamWrapper::Read(void* pvBuffer,
+    size_t pSize,
+    size_t pCount
+){
+    // need to typecast here as C has no void*
+    return mFile->ReadProc(mFile,(char*)pvBuffer,pSize,pCount);
+}
+
+// ...................................................................
+size_t CIOStreamWrapper::Write(const void* pvBuffer,
+    size_t pSize,
+    size_t pCount
+){
+    // need to typecast here as C has no void*
+    return mFile->WriteProc(mFile,(const char*)pvBuffer,pSize,pCount);
+}
+
+// ...................................................................
+aiReturn CIOStreamWrapper::Seek(size_t pOffset,
+    aiOrigin pOrigin
+){
+    return mFile->SeekProc(mFile,pOffset,pOrigin);
+}
+
+// ...................................................................
+size_t CIOStreamWrapper::Tell(void) const {
+    return mFile->TellProc(mFile);
+}
+
+// ...................................................................
+size_t CIOStreamWrapper::FileSize() const {
+    return mFile->FileSizeProc(mFile);
+}
+
+// ...................................................................
+void CIOStreamWrapper::Flush () {
+    return mFile->FlushProc(mFile);
+}
+
+// ------------------------------------------------------------------------------------------------
+// Custom IOStream implementation for the C-API
+bool CIOSystemWrapper::Exists( const char* pFile) const {
+    aiFile* p = mFileSystem->OpenProc(mFileSystem,pFile,"rb");
+    if (p){
+        mFileSystem->CloseProc(mFileSystem,p);
+        return true;
+    }
+    return false;
+}
+
+// ...................................................................
+char CIOSystemWrapper::getOsSeparator() const {
+#ifndef _WIN32
+    return '/';
+#else
+    return '\\';
+#endif
+}
+
+// ...................................................................
+IOStream* CIOSystemWrapper::Open(const char* pFile,const char* pMode) {
+    aiFile* p = mFileSystem->OpenProc(mFileSystem,pFile,pMode);
+    if (!p) {
+        return NULL;
+    }
+    return new CIOStreamWrapper(p, this);
+}
+
+// ...................................................................
+void CIOSystemWrapper::Close( IOStream* pFile) {
+    if (!pFile) {
+        return;
+    }
+    delete pFile;
+}
+
+}
diff --git a/thirdparty/assimp/code/CApi/CInterfaceIOWrapper.h b/thirdparty/assimp/code/CApi/CInterfaceIOWrapper.h
new file mode 100644
index 0000000000..2162320302
--- /dev/null
+++ b/thirdparty/assimp/code/CApi/CInterfaceIOWrapper.h
@@ -0,0 +1,99 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp 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 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 aiFileIO -> IOSystem wrapper*/
+
+#ifndef AI_CIOSYSTEM_H_INCLUDED
+#define AI_CIOSYSTEM_H_INCLUDED
+
+#include <assimp/cfileio.h>
+#include <assimp/IOStream.hpp>
+#include <assimp/IOSystem.hpp>
+
+namespace Assimp    {
+
+class CIOSystemWrapper;
+
+// ------------------------------------------------------------------------------------------------
+// Custom IOStream implementation for the C-API
+class CIOStreamWrapper : public IOStream
+{
+public:
+    explicit CIOStreamWrapper(aiFile* pFile, CIOSystemWrapper* io)
+        : mFile(pFile),
+        mIO(io)
+    {}
+    ~CIOStreamWrapper(void);
+
+    size_t Read(void* pvBuffer, size_t pSize, size_t pCount);
+    size_t Write(const void* pvBuffer, size_t pSize, size_t pCount);
+    aiReturn Seek(size_t pOffset, aiOrigin pOrigin);
+    size_t Tell(void) const;
+    size_t FileSize() const;
+    void Flush();
+
+private:
+    aiFile* mFile;
+    CIOSystemWrapper* mIO;
+};
+
+class CIOSystemWrapper : public IOSystem
+{
+    friend class CIOStreamWrapper;
+public:
+    explicit CIOSystemWrapper(aiFileIO* pFile)
+        : mFileSystem(pFile)
+    {}
+
+    bool Exists( const char* pFile) const;
+    char getOsSeparator() const;
+    IOStream* Open(const char* pFile,const char* pMode = "rb");
+    void Close( IOStream* pFile);
+private:
+    aiFileIO* mFileSystem;
+};
+
+}
+
+#endif
+