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czlib.h
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C/C++ Source or Header
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2003-11-23
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1KB
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55 lines
#ifndef __CZLIB_H__
#define __CZLIB_H__
#include "compressor.h"
#include "zlib/ZLIB.H"
class CZlib : public ICompressor {
public:
int Init(int level) {
stream = new z_stream;
if (!stream) return Z_MEM_ERROR;
return deflateInit(stream, level);
}
int End() {
int ret = deflateEnd(stream);
delete stream;
return ret;
}
int Compress(BOOL finish) {
return deflate(stream, finish?Z_FINISH:0);
}
void SetNextIn(char *in, unsigned int size) {
stream->next_in = (unsigned char*)in;
stream->avail_in = size;
}
void SetNextOut(char *out, unsigned int size) {
stream->next_out = (unsigned char*)out;
stream->avail_out = size;
}
virtual char* GetNextOut() {
return (char*)stream->next_out;
}
virtual unsigned int GetAvailIn() {
return stream->avail_in;
}
virtual unsigned int GetAvailOut() {
return stream->avail_out;
}
const char* GetName() {
return "zlib";
}
private:
z_stream *stream;
};
#endif