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Diffstat (limited to 'src/lib/lib7z/7zCrc.c')
-rw-r--r--src/lib/lib7z/7zCrc.c90
1 files changed, 45 insertions, 45 deletions
diff --git a/src/lib/lib7z/7zCrc.c b/src/lib/lib7z/7zCrc.c
index 1b948de0ec8..aa3bfad1634 100644
--- a/src/lib/lib7z/7zCrc.c
+++ b/src/lib/lib7z/7zCrc.c
@@ -7,15 +7,15 @@
#define kCrcPoly 0xEDB88320
#if defined(MY_CPU_LE)
- #define CRC_NUM_TABLES 4
+ #define CRC_NUM_TABLES 4
#else
- #define CRC_NUM_TABLES 5
- #define CRC_UINT32_SWAP(v) ((v >> 24) | ((v >> 8) & 0xFF00) | ((v << 8) & 0xFF0000) | (v << 24))
- UInt32 MY_FAST_CALL CrcUpdateT1_BeT4(UInt32 v, const void *data, size_t size, const UInt32 *table);
+ #define CRC_NUM_TABLES 5
+ #define CRC_UINT32_SWAP(v) ((v >> 24) | ((v >> 8) & 0xFF00) | ((v << 8) & 0xFF0000) | (v << 24))
+ UInt32 MY_FAST_CALL CrcUpdateT1_BeT4(UInt32 v, const void *data, size_t size, const UInt32 *table);
#endif
#ifndef MY_CPU_BE
- UInt32 MY_FAST_CALL CrcUpdateT4(UInt32 v, const void *data, size_t size, const UInt32 *table);
+ UInt32 MY_FAST_CALL CrcUpdateT4(UInt32 v, const void *data, size_t size, const UInt32 *table);
#endif
typedef UInt32 (MY_FAST_CALL *CRC_FUNC)(UInt32 v, const void *data, size_t size, const UInt32 *table);
@@ -25,56 +25,56 @@ UInt32 g_CrcTable[256 * CRC_NUM_TABLES];
UInt32 MY_FAST_CALL CrcUpdate(UInt32 v, const void *data, size_t size)
{
- return g_CrcUpdate(v, data, size, g_CrcTable);
+ return g_CrcUpdate(v, data, size, g_CrcTable);
}
UInt32 MY_FAST_CALL CrcCalc(const void *data, size_t size)
{
- return g_CrcUpdate(CRC_INIT_VAL, data, size, g_CrcTable) ^ CRC_INIT_VAL;
+ return g_CrcUpdate(CRC_INIT_VAL, data, size, g_CrcTable) ^ CRC_INIT_VAL;
}
void MY_FAST_CALL CrcGenerateTable()
{
- UInt32 i;
- for (i = 0; i < 256; i++)
- {
- UInt32 r = i;
- unsigned j;
- for (j = 0; j < 8; j++)
- r = (r >> 1) ^ (kCrcPoly & ~((r & 1) - 1));
- g_CrcTable[i] = r;
- }
- for (; i < 256 * CRC_NUM_TABLES; i++)
- {
- UInt32 r = g_CrcTable[i - 256];
- g_CrcTable[i] = g_CrcTable[r & 0xFF] ^ (r >> 8);
- }
+ UInt32 i;
+ for (i = 0; i < 256; i++)
+ {
+ UInt32 r = i;
+ unsigned j;
+ for (j = 0; j < 8; j++)
+ r = (r >> 1) ^ (kCrcPoly & ~((r & 1) - 1));
+ g_CrcTable[i] = r;
+ }
+ for (; i < 256 * CRC_NUM_TABLES; i++)
+ {
+ UInt32 r = g_CrcTable[i - 256];
+ g_CrcTable[i] = g_CrcTable[r & 0xFF] ^ (r >> 8);
+ }
- #ifdef MY_CPU_LE
+ #ifdef MY_CPU_LE
- g_CrcUpdate = CrcUpdateT4;
+ g_CrcUpdate = CrcUpdateT4;
- #if CRC_NUM_TABLES == 8
- if (!CPU_Is_InOrder())
- g_CrcUpdate = CrcUpdateT8;
- #endif
+ #if CRC_NUM_TABLES == 8
+ if (!CPU_Is_InOrder())
+ g_CrcUpdate = CrcUpdateT8;
+ #endif
- #else
- {
- #ifndef MY_CPU_BE
- UInt32 k = 1;
- if (*(const Byte *)&k == 1)
- g_CrcUpdate = CrcUpdateT4;
- else
- #endif
- {
- for (i = 256 * CRC_NUM_TABLES - 1; i >= 256; i--)
- {
- UInt32 x = g_CrcTable[i - 256];
- g_CrcTable[i] = CRC_UINT32_SWAP(x);
- }
- g_CrcUpdate = CrcUpdateT1_BeT4;
- }
- }
- #endif
+ #else
+ {
+ #ifndef MY_CPU_BE
+ UInt32 k = 1;
+ if (*(const Byte *)&k == 1)
+ g_CrcUpdate = CrcUpdateT4;
+ else
+ #endif
+ {
+ for (i = 256 * CRC_NUM_TABLES - 1; i >= 256; i--)
+ {
+ UInt32 x = g_CrcTable[i - 256];
+ g_CrcTable[i] = CRC_UINT32_SWAP(x);
+ }
+ g_CrcUpdate = CrcUpdateT1_BeT4;
+ }
+ }
+ #endif
}