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add Windows support for ADT-FSE alogrithm

This commit is contained in:
lx1zhong 2023-09-20 21:59:52 +08:00
parent 0ca99ea9c9
commit 5a97cf9fc9
2 changed files with 18 additions and 2 deletions
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11
utils/TSZ/sz/inc/transcode.h
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@ -17,6 +17,13 @@
extern "C" {
#endif
#ifdef WINDOWS
int32_t BUILDIN_CLZ(uint32_t val);
#else
#define BUILDIN_CLZ(val) __builtin_clz(val)
#endif
/**
* dict = {
0: [0,0], 1:[1,0], 2:[2,0], 3:[3,0],
@ -53,10 +60,10 @@ MEM_STATIC int Int2code(int factor)
24, 24, 24, 24, 24, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24 };
if (factor >= 0)
return (factor > 63) ? 50 - __builtin_clz(factor) : Ft_Code[factor];
return (factor > 63) ? 50 - BUILDIN_CLZ(factor) : Ft_Code[factor];
else {
factor = -factor;
return (factor > 63) ? 17 + __builtin_clz(factor) : 67 - Ft_Code[factor];
return (factor > 63) ? 17 + BUILDIN_CLZ(factor) : 67 - Ft_Code[factor];
}
}

9
utils/TSZ/sz/src/transcode.c
View File

@ -13,6 +13,15 @@
#include "bitstream.h"
#include <stdlib.h>
#ifdef WINDOWS
int32_t BUILDIN_CLZ(uint32_t val) {
unsigned long r = 0;
_BitScanReverse(&r, val);
return (int)(31 - r);
}
#endif
/**
* @brief transform type array to FseCode & tranCodeBits
* [type] ---minus md---> [factor] ---transcode---> [tp_code] + [bitstream of diff]