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hyzboy
2019-08-19 19:19:58 +08:00
parent 7bb6b54204
commit 2b71bf8135
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100
inc/hgl/io/EndianDataInputStream.h Normal file
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#ifndef HGL_IO_ENDIAN_DATA_INPUT_STREAM_INCLUDE
#define HGL_IO_ENDIAN_DATA_INPUT_STREAM_INCLUDE
#include<hgl/io/DataInputStream.h>
#include<hgl/Endian.h>
namespace hgl
{
namespace io
{
class DirectDataInputStream:public DataInputStream
{
public:
using DataInputStream::DataInputStream;
virtual ~DirectDataInputStream()=default;
#define STREAM_DIRECT_READ(type,name) virtual bool Read##name(type &value) \
{ \
return Read(value); \
} \
\
virtual int64 Read##name(type *data,const int64 count) \
{ \
if(count<=0)return(count); \
if(!data)return(-1); \
\
return ReadArrays(data,count); \
}
STREAM_DIRECT_READ(int16, Int16 );
STREAM_DIRECT_READ(int32, Int32 );
STREAM_DIRECT_READ(int64, Int64 );
STREAM_DIRECT_READ(uint16, Uint16 );
STREAM_DIRECT_READ(uint32, Uint32 );
STREAM_DIRECT_READ(uint64, Uint64 );
STREAM_DIRECT_READ(u16char,UTF16Char);
STREAM_DIRECT_READ(float, Float );
STREAM_DIRECT_READ(double, Double );
#undef STREAM_DIRECT_READ
};//class DirectDataInputStream
class SwapDataInputStream:public DataInputStream
{
public:
using DataInputStream::DataInputStream;
virtual ~SwapDataInputStream()=default;
#define STREAM_SWAP_READ(type,name) virtual bool Read##name(type &value) \
{\
type swap_value; \
\
if(!Read(swap_value)) \
return(false); \
\
value=EndianSwap(swap_value); \
return(true); \
} \
\
virtual int64 Read##name(type *data,const int64 count) \
{ \
if(count<=0)return(count); \
if(!data)return(-1); \
\
const int64 result=ReadArrays(data,count); \
\
if(result<=0)return(result); \
\
EndianSwap(data,result); \
return(result); \
}
STREAM_SWAP_READ(int16, Int16 );
STREAM_SWAP_READ(int32, Int32 );
STREAM_SWAP_READ(int64, Int64 );
STREAM_SWAP_READ(uint16, Uint16 );
STREAM_SWAP_READ(uint32, Uint32 );
STREAM_SWAP_READ(uint64, Uint64 );
STREAM_SWAP_READ(u16char, UTF16Char);
STREAM_SWAP_READ(float, Float );
STREAM_SWAP_READ(double, Double );
#undef STREAM_SWAP_READ
};//class SwapDataInputStream
#if HGL_ENDIAN == HGL_LITTLE_ENDIAN
typedef DirectDataInputStream LEDataInputStream;
typedef SwapDataInputStream BEDataInputStream;
#else
typedef DirectDataInputStream BEDataInputStream;
typedef SwapDataInputStream LEDataInputStream;
#endif//HGL_ENDIAN == HGL_LITTLE_ENDIAN
}//namespace io
}//namespace hgl
#endif//HGL_IO_ENDIAN_DATA_INPUT_STREAM_INCLUDE