forked from KolibriOS/kolibrios
32 lines
945 B
C++
32 lines
945 B
C++
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#include <stdio.h>
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#include <windows.h>
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extern "C" __stdcall lzma_set_dict_size(unsigned logdictsize);
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extern "C" __stdcall lzma_compress(
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const void* source,
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void* destination,
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unsigned length,
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void* workmem);
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int main()
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{
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FILE* f;
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f = fopen("test.in","rb");
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fseek(f,0,SEEK_END);
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unsigned inlen = ftell(f);
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fseek(f,0,SEEK_SET);
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void* in = VirtualAlloc(NULL,inlen,MEM_COMMIT,PAGE_READWRITE);
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void* out = VirtualAlloc(NULL,inlen,MEM_COMMIT,PAGE_READWRITE);
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fread(in,1,inlen,f);
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fclose(f);
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unsigned logdictsize,dictsize;
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for (logdictsize=0,dictsize=1;dictsize<inlen && logdictsize<=28;logdictsize++,dictsize<<=1) ;
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lzma_set_dict_size(logdictsize);
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void* work = VirtualAlloc(NULL,dictsize*19/2+0x509000,MEM_COMMIT,PAGE_READWRITE);
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unsigned outlen = lzma_compress(in,out,inlen,work);
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printf("%d -> %d\n",inlen,outlen);
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f = fopen("test.out","wb");
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fwrite(out,1,outlen,f);
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fclose(f);
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return 0;
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}
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