denuvo-ref/precomp-cpp
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Fix for slowdown on some files

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- identical_bytes and compressed_stream_size don't have to be the same
anymore, as for some files they differ although decompressed bytes match
- tolerance for penalty bytes (5*32 bytes)
This commit is contained in:
Christian Schneider 2017-01-02 11:22:01 +01:00
parent d64c1c55e4
commit 67091fcbbd
1 changed files with 3 additions and 2 deletions
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5
precomp.cpp
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@ -96,6 +96,7 @@ using namespace std;
#define FAST_COPY_WORK_SIGN_DIST 64 // update work sign after (FAST_COPY_WORK_SIGN_DIST * COPY_BUF_SIZE) bytes
#define COMP_CHUNK 512
#define IN_BUF_SIZE 65536 //input buffer
#define PENALTY_BYTES_TOLERANCE 160
unsigned char copybuf[COPY_BUF_SIZE];
@ -5716,7 +5717,7 @@ void try_recompress(FILE* origfile, int comp_level, int mem_level, int windowbit
printf ("Identical decompressed bytes: %i of %i\n", identical_bytes_decomp, decomp_bytes_total);
}
final_compression_found = (identical_bytes_decomp == decomp_bytes_total) && (penalty_bytes_len == 0) && (identical_bytes == compressed_stream_size);
final_compression_found = (identical_bytes_decomp == decomp_bytes_total) && (penalty_bytes_len < PENALTY_BYTES_TOLERANCE);
}
best_identical_bytes_decomp = identical_bytes_decomp;
@ -5747,7 +5748,7 @@ void try_recompress_bzip2(FILE* origfile, int level, int& compressed_stream_size
printf ("Identical decompressed bytes: %i of %i\n", identical_bytes_decomp, decomp_bytes_total);
}
final_compression_found = (identical_bytes_decomp == decomp_bytes_total) && (penalty_bytes_len == 0) && (identical_bytes == compressed_stream_size);
final_compression_found = (identical_bytes_decomp == decomp_bytes_total) && (penalty_bytes_len < PENALTY_BYTES_TOLERANCE);
}
best_identical_bytes_decomp = identical_bytes_decomp;