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OcCompressionLib: Update to zlib 1.2.13 (#439)
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PMheart authored Apr 2, 2023
1 parent cda8a58 commit 41b8aca
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Showing 20 changed files with 1,409 additions and 209 deletions.
6 changes: 3 additions & 3 deletions Library/OcCompressionLib/zlib/compress.c
Original file line number Diff line number Diff line change
Expand Up @@ -19,7 +19,7 @@
memory, Z_BUF_ERROR if there was not enough room in the output buffer,
Z_STREAM_ERROR if the level parameter is invalid.
*/
int ZEXPORT compress2 (dest, destLen, source, sourceLen, level)
int ZEXPORT compress2(dest, destLen, source, sourceLen, level)
Bytef *dest;
uLongf *destLen;
const Bytef *source;
Expand Down Expand Up @@ -65,7 +65,7 @@ int ZEXPORT compress2 (dest, destLen, source, sourceLen, level)

/* ===========================================================================
*/
int ZEXPORT compress (dest, destLen, source, sourceLen)
int ZEXPORT compress(dest, destLen, source, sourceLen)
Bytef *dest;
uLongf *destLen;
const Bytef *source;
Expand All @@ -78,7 +78,7 @@ int ZEXPORT compress (dest, destLen, source, sourceLen)
If the default memLevel or windowBits for deflateInit() is changed, then
this function needs to be updated.
*/
uLong ZEXPORT compressBound (sourceLen)
uLong ZEXPORT compressBound(sourceLen)
uLong sourceLen;
{
return sourceLen + (sourceLen >> 12) + (sourceLen >> 14) +
Expand Down
33 changes: 21 additions & 12 deletions Library/OcCompressionLib/zlib/crc32.c
Original file line number Diff line number Diff line change
Expand Up @@ -98,13 +98,22 @@
# endif
#endif

/* If available, use the ARM processor CRC32 instruction. */
#if defined(__aarch64__) && defined(__ARM_FEATURE_CRC32) && W == 8
# define ARMCRC32
#endif

/* Local functions. */
local z_crc_t multmodp OF((z_crc_t a, z_crc_t b));
local z_crc_t x2nmodp OF((z_off64_t n, unsigned k));

/* If available, use the ARM processor CRC32 instruction. */
#if defined(__aarch64__) && defined(__ARM_FEATURE_CRC32) && W == 8
# define ARMCRC32
#if defined(W) && (!defined(ARMCRC32) || defined(DYNAMIC_CRC_TABLE))
local z_word_t byte_swap OF((z_word_t word));
#endif

#if defined(W) && !defined(ARMCRC32)
local z_crc_t crc_word OF((z_word_t data));
local z_word_t crc_word_big OF((z_word_t data));
#endif

#if defined(W) && (!defined(ARMCRC32) || defined(DYNAMIC_CRC_TABLE))
Expand Down Expand Up @@ -630,7 +639,7 @@ unsigned long ZEXPORT crc32_z(crc, buf, len)
#endif /* DYNAMIC_CRC_TABLE */

/* Pre-condition the CRC */
crc ^= 0xffffffff;
crc = (~crc) & 0xffffffff;

/* Compute the CRC up to a word boundary. */
while (len && ((z_size_t)buf & 7) != 0) {
Expand All @@ -645,8 +654,8 @@ unsigned long ZEXPORT crc32_z(crc, buf, len)
len &= 7;

/* Do three interleaved CRCs to realize the throughput of one crc32x
instruction per cycle. Each CRC is calcuated on Z_BATCH words. The three
CRCs are combined into a single CRC after each set of batches. */
instruction per cycle. Each CRC is calculated on Z_BATCH words. The
three CRCs are combined into a single CRC after each set of batches. */
while (num >= 3 * Z_BATCH) {
crc1 = 0;
crc2 = 0;
Expand Down Expand Up @@ -749,7 +758,7 @@ unsigned long ZEXPORT crc32_z(crc, buf, len)
#endif /* DYNAMIC_CRC_TABLE */

/* Pre-condition the CRC */
crc ^= 0xffffffff;
crc = (~crc) & 0xffffffff;

#ifdef W

Expand Down Expand Up @@ -1077,7 +1086,7 @@ uLong ZEXPORT crc32_combine64(crc1, crc2, len2)
#ifdef DYNAMIC_CRC_TABLE
once(&made, make_crc_table);
#endif /* DYNAMIC_CRC_TABLE */
return multmodp(x2nmodp(len2, 3), crc1) ^ crc2;
return multmodp(x2nmodp(len2, 3), crc1) ^ (crc2 & 0xffffffff);
}

/* ========================================================================= */
Expand All @@ -1086,7 +1095,7 @@ uLong ZEXPORT crc32_combine(crc1, crc2, len2)
uLong crc2;
z_off_t len2;
{
return crc32_combine64(crc1, crc2, len2);
return crc32_combine64(crc1, crc2, (z_off64_t)len2);
}

/* ========================================================================= */
Expand All @@ -1103,14 +1112,14 @@ uLong ZEXPORT crc32_combine_gen64(len2)
uLong ZEXPORT crc32_combine_gen(len2)
z_off_t len2;
{
return crc32_combine_gen64(len2);
return crc32_combine_gen64((z_off64_t)len2);
}

/* ========================================================================= */
uLong crc32_combine_op(crc1, crc2, op)
uLong ZEXPORT crc32_combine_op(crc1, crc2, op)
uLong crc1;
uLong crc2;
uLong op;
{
return multmodp(op, crc1) ^ crc2;
return multmodp(op, crc1) ^ (crc2 & 0xffffffff);
}
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