lib3mf :

- primo commit.
2021-09-07 16:50:23 +02:00
parent a5a65b4c8d
commit f8c998f6ff
633 changed files with 108631 additions and 0 deletions
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+/*++
+
+Copyright (C) 2019 3MF Consortium
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+list of conditions and the following disclaimer.
+2. 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.
+
+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 HOLDER 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.
+
+Abstract:
+
+NMR_ImportStream_Memory.cpp implements the CImportStream_Memory Class.
+This is an abstract platform independent class for keeping data in a memory stream.
+
+--*/
+
+#include "Common/Platform/NMR_ImportStream_Memory.h"
+#include "Common/Platform/NMR_Platform.h"
+#include "Common/NMR_Exception.h"
+#include "Common/NMR_Exception_Windows.h"
+#include "Common/NMR_StringUtils.h"
+
+#include <string>
+
+namespace NMR {
+
+	CImportStream_Memory::~CImportStream_Memory()
+	{
+	}
+
+	nfBool CImportStream_Memory::seekPosition(_In_ nfUint64 nPosition, _In_ nfBool bHasToSucceed)
+	{
+		if (nPosition > m_cbSize) {
+			if (bHasToSucceed)
+				throw CNMRException(NMR_ERROR_COULDNOTSEEKSTREAM);
+			return false;
+		}
+
+		m_nPosition = nPosition;
+
+		return true;
+	}
+
+	nfBool CImportStream_Memory::seekForward(_In_ nfUint64 cbBytes, _In_ nfBool bHasToSucceed)
+	{
+		nfUint64 nPosition = m_nPosition + cbBytes;
+
+		if (nPosition > m_cbSize) {
+			if (bHasToSucceed)
+				throw CNMRException(NMR_ERROR_COULDNOTSEEKSTREAM);
+			return false;
+		}
+
+		m_nPosition = nPosition;
+		return true;
+	}
+
+	nfBool CImportStream_Memory::seekFromEnd(_In_ nfUint64 cbBytes, _In_ nfBool bHasToSucceed)
+	{
+		if (cbBytes > m_cbSize) {
+			if (bHasToSucceed)
+				throw CNMRException(NMR_ERROR_COULDNOTSEEKSTREAM);
+			return false;
+		}
+
+		m_nPosition = m_cbSize - cbBytes;
+		return true;
+	}
+
+	nfUint64 CImportStream_Memory::getPosition()
+	{
+		return m_nPosition;
+	}
+
+	nfUint64 CImportStream_Memory::readIntoBuffer(_In_ nfByte * pBuffer, _In_ nfUint64 cbTotalBytesToRead, nfBool bNeedsToReadAll)
+	{
+		__NMRASSERT(m_nPosition <= m_cbSize);
+		nfUint64 cbBytesLeft = (m_cbSize - m_nPosition);
+		nfUint64 cbBytesToRead = cbTotalBytesToRead;
+
+		if (cbBytesToRead > cbBytesLeft)
+			cbBytesToRead = cbBytesLeft;
+
+		if (cbBytesToRead > 0) {
+			nfUint64 nIndex = cbBytesToRead;
+			const nfByte * pSource = getAt(m_nPosition);
+			nfByte * pTarget = pBuffer;
+
+			while (nIndex > 0) {
+				*pTarget = *pSource;
+				nIndex--;
+				pSource++;
+				pTarget++;
+			}
+
+			m_nPosition += cbBytesToRead;
+		}
+
+		if ((cbBytesToRead != cbTotalBytesToRead) && bNeedsToReadAll)
+			throw CNMRException(NMR_ERROR_COULDNOTREADFULLDATA);
+
+		return cbBytesToRead;
+
+	}
+
+	nfUint64 CImportStream_Memory::retrieveSize()
+	{
+		return m_cbSize;
+	}
+
+	void CImportStream_Memory::writeToFile(_In_ const nfWChar * pwszFileName)
+	{
+		if (pwszFileName == nullptr)
+			throw CNMRException(NMR_ERROR_INVALIDPARAM);
+
+		std::string sUTF8FileName = fnUTF16toUTF8(pwszFileName);
+		PExportStream pExportStream = fnCreateExportStreamInstance(sUTF8FileName.c_str());
+		if (m_cbSize > 0) {
+			pExportStream->writeBuffer(getAt(0), m_cbSize);
+		}
+	}
+}