lib3mf :

- primo commit.
2021-09-07 16:50:23 +02:00
parent a5a65b4c8d
commit f8c998f6ff
633 changed files with 108631 additions and 0 deletions
@@ -0,0 +1,114 @@
+/*++
+
+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_ExportStream_Compressed.h defines a stream to write compressed files
+
+--*/
+
+#include "Common/Platform/NMR_ExportStream_Compressed.h"
+#include "Common/NMR_Exception.h"
+ 
+namespace NMR {
+
+	CExportStream_Compressed::CExportStream_Compressed(PExportStream pUncompressedStream)
+	{
+		if (nullptr == pUncompressedStream)
+			throw CNMRException(NMR_ERROR_INVALIDPOINTER);
+		m_pUncompressedStream = pUncompressedStream;
+
+		m_strm.zalloc = Z_NULL;
+		m_strm.zfree = Z_NULL;
+		m_strm.opaque = Z_NULL;
+		if (deflateInit(&m_strm, Z_DEFAULT_COMPRESSION) != Z_OK)
+			throw CNMRException(NMR_ERROR_COULDNOTINITDEFLATE);
+	}
+
+	CExportStream_Compressed::~CExportStream_Compressed()
+	{
+		(void)deflateEnd(&m_strm);
+	}
+
+	nfBool CExportStream_Compressed::seekPosition(_In_ nfUint64 position, _In_ nfBool bHasToSucceed)
+	{
+		throw CNMRException(NMR_ERROR_NOTIMPLEMENTED);
+	}
+
+	nfBool CExportStream_Compressed::seekForward(_In_ nfUint64 bytes, _In_ nfBool bHasToSucceed)
+	{
+		throw CNMRException(NMR_ERROR_NOTIMPLEMENTED);
+	}
+
+	nfBool CExportStream_Compressed::seekFromEnd(_In_ nfUint64 bytes, _In_ nfBool bHasToSucceed)
+	{
+		throw CNMRException(NMR_ERROR_NOTIMPLEMENTED);
+	}
+
+	nfUint64 CExportStream_Compressed::getPosition()
+	{
+		throw CNMRException(NMR_ERROR_NOTIMPLEMENTED);
+	}
+
+	nfInt32 CExportStream_Compressed::compress(nfInt32 flush) {
+		nfInt32 ret;
+		do {
+			m_strm.avail_out = (nfUint32) EXPORTSTREAM_WRITE_BUFFER_CHUNKSIZE;
+			m_strm.next_out = out;
+			ret = deflate(&m_strm, flush);
+			switch (ret) {
+			case Z_NEED_DICT:
+			case Z_DATA_ERROR:
+			case Z_MEM_ERROR:
+				(void)deflateEnd(&m_strm);
+				throw CNMRException(NMR_ERROR_COULDNOTDEFLATE);
+			}
+			int toWrite = EXPORTSTREAM_WRITE_BUFFER_CHUNKSIZE - m_strm.avail_out;
+			m_pUncompressedStream->writeBuffer(out, toWrite);
+		} while (m_strm.avail_out == 0);
+		return ret;
+	}
+
+	nfUint64 CExportStream_Compressed::writeBuffer(_In_ const void * pBuffer, _In_ nfUint64 cbTotalBytesToWrite)
+	{
+		if (nullptr == pBuffer)
+			throw CNMRException(NMR_ERROR_INVALIDPARAM);
+
+		m_strm.avail_in = (nfUint32) cbTotalBytesToWrite;
+		m_strm.next_in = (Bytef *) pBuffer;
+		compress(Z_NO_FLUSH);
+		
+		return cbTotalBytesToWrite;
+	}
+
+	void CExportStream_Compressed::close()
+	{
+		if (compress(Z_FINISH) != Z_STREAM_END) {
+		 	throw CNMRException(NMR_ERROR_COULDNOTDEFLATE);
+		}
+	}
+
+}