161 lines
5.2 KiB
Objective-C
161 lines
5.2 KiB
Objective-C
/****************************************************************************
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Copyright (c) 2006, Radon Labs GmbH
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Copyright (c) 2011-2013,WebJet Business Division,CYOU
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http://www.genesis-3d.com.cn
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#pragma once
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//------------------------------------------------------------------------------
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/**
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@class IO::BinaryReader
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A friendly interface to read binary data from a stream. Optionally the
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reader can use memory mapping for optimal read performance. Performs
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automatic byte order conversion if necessary.
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@todo convert endianess!
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*/
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#include "io/streamreader.h"
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#if !__OSX__
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#include "math/float2.h"
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#include "math/float4.h"
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#include "math/point.h"
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#include "math/vector.h"
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#include "math/matrix44.h"
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#endif
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#include "util/guid.h"
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#include "util/blob.h"
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#include "system/byteorder.h"
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//------------------------------------------------------------------------------
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namespace IO
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{
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class BinaryReader : public StreamReader
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{
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__DeclareClass(BinaryReader);
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public:
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/// constructor
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BinaryReader();
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/// destructor
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virtual ~BinaryReader();
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/// call before Open() to enable memory mapping (if stream supports mapping)
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void SetMemoryMappingEnabled(bool b);
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/// return true if memory mapping is enabled
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bool IsMemoryMappingEnabled() const;
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/// set the stream byte order (default is host byte order)
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void SetStreamByteOrder(System::ByteOrder::Type byteOrder);
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/// get the stream byte order
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System::ByteOrder::Type GetStreamByteOrder() const;
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/// begin reading from the stream
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virtual bool Open();
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/// end reading from the stream
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virtual void Close();
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/// read an 8-bit char from the stream
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char ReadChar();
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/// read an 8-bit unsigned character from the stream
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unsigned char ReadUChar();
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/// read a 16-bit short from the stream
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short ReadShort();
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/// read a 16-bit unsigned short from the stream
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unsigned short ReadUShort();
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/// read a 32-bit int from the stream
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int ReadInt();
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/// read a 32-bit unsigned int from the stream
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unsigned int ReadUInt();
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/// read a float value from the stream
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float ReadFloat();
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/// read a compressed float value from the stream, lossy and needed to be in the range of -1.0 and +1.0
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float ReadFloatFromNormalizedUByte2();
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/// read a compressed float value from the stream, lossy and needed to be in the range of 0.0 and +1.0
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float ReadFloatFromUnsignedNormalizedUByte2();
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/// read a double value from the stream
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double ReadDouble();
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/// read a bool value from the stream
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bool ReadBool();
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/// read a string from the stream
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Util::String ReadString();
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/// read a float2 from the stream
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Math::float2 ReadFloat2();
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/// read a float4 from the stream
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Math::float4 ReadFloat4();
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/// read a point from the stream, (x,y,z,1.0)
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Math::point ReadPoint();
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/// read a vector from the stream, (x,y,z,0.0)
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Math::vector ReadVector();
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/// read a matrix44 from the stream
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Math::matrix44 ReadMatrix44();
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/// read a guid
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Util::Guid ReadGuid();
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/// read a blob of data
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Util::Blob ReadBlob();
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/// read raw data
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void ReadRawData(void* ptr, SizeT numBytes);
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public:
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bool enableMapping;
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bool isMapped;
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System::ByteOrder byteOrder;
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unsigned char* mapCursor;
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unsigned char* mapEnd;
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};
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//------------------------------------------------------------------------------
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/**
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*/
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inline void
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BinaryReader::SetMemoryMappingEnabled(bool b)
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{
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this->enableMapping = b;
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}
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//------------------------------------------------------------------------------
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/**
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*/
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inline bool
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BinaryReader::IsMemoryMappingEnabled() const
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{
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return this->enableMapping;
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}
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//------------------------------------------------------------------------------
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/**
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*/
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inline void
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BinaryReader::SetStreamByteOrder(System::ByteOrder::Type order)
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{
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this->byteOrder.SetFromByteOrder(order);
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}
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//------------------------------------------------------------------------------
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/**
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*/
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inline System::ByteOrder::Type
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BinaryReader::GetStreamByteOrder() const
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{
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return this->byteOrder.GetFromByteOrder();
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}
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} // namespace IO
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//------------------------------------------------------------------------------
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