mirror of https://github.com/PrimeDecomp/prime.git
87 lines
1.8 KiB
C++
87 lines
1.8 KiB
C++
#ifndef _COUTPUTSTREAM
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#define _COUTPUTSTREAM
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#include "types.h"
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#include "stddef.h"
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class COutputStream;
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template < typename T >
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void coutput_stream_helper(const T& t, COutputStream& out);
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class COutputStream {
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public:
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COutputStream(int len);
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virtual ~COutputStream();
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virtual void Write(const void* ptr, size_t len) = 0;
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void WriteBits(uint val, uint bitCount);
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void DoPut(const void* ptr, size_t len);
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void DoFlush();
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void Flush();
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void FlushShiftRegister();
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void Put(const void* ptr, size_t len) {
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FlushShiftRegister();
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DoPut(ptr, len);
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}
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template < typename T >
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void Put(const T& t) {
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coutput_stream_helper(t, *this);
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}
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void WriteReal32(float t) { Put(t); }
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void WriteUint32(uint t) { Put(t); }
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void WriteInt32(int t) { Put(t); }
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void WriteLong(int t) { Put(&t, sizeof(int)); }
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void WriteChar(u8 c) {
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FlushShiftRegister();
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if (mUnwrittenLen >= mBufLen) {
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DoFlush();
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}
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++mNumWrites;
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*(reinterpret_cast< u8* >(mBufPtr) + mUnwrittenLen++) = c;
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}
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private:
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uint mUnwrittenLen;
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uint mBufLen;
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void* mBufPtr;
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uint mNumWrites;
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uint mShiftRegister;
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volatile uint mShiftRegisterOffset;
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uchar mScratch[96];
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};
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template < typename T >
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inline void coutput_stream_helper(const T& t, COutputStream& out) {
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t.PutTo(out);
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}
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template <>
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inline void coutput_stream_helper(const float& t, COutputStream& out) {
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int tmp = *(int*)&t;
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out.Put(&tmp, sizeof(float));
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}
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template <>
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inline void coutput_stream_helper(const int& t, COutputStream& out) {
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out.WriteLong(t);
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}
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template <>
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inline void coutput_stream_helper(const uint& t, COutputStream& out) {
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out.WriteLong(t);
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}
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template <>
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inline void coutput_stream_helper(const bool& t, COutputStream& out) {
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out.WriteChar(static_cast< u8 >(t));
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}
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#endif // _COUTPUTSTREAM
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