FilesExpand file tree

 async3

/

runtime_math.js

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

75 lines (69 loc) · 3.3 KB

 async3

/

runtime_math.js

Top

File metadata and controls

• Code
• Blame

75 lines (69 loc) · 3.3 KB

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

/**

* @license

* Copyright 2019 The Emscripten Authors

* SPDX-License-Identifier: MIT

*/

// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/imul

#if POLYFILL_OLD_MATH_FUNCTIONS || MIN_CHROME_VERSION < 28 || MIN_EDGE_VERSION < 12 || MIN_FIREFOX_VERSION < 20 || MIN_IE_VERSION != TARGET_NOT_SUPPORTED || MIN_SAFARI_VERSION < 90000 // || MIN_NODE_VERSION < 0.12

// || MIN_NODE_VERSION < 0.12

// check for imul support, and also for correctness ( https://bugs.webkit.org/show_bug.cgi?id=126345 )

if (!Math.imul || Math.imul(0xffffffff, 5) !== -5) Math.imul = function imul(a, b) {

var ah = a >>> 16;

var al = a & 0xffff;

var bh = b >>> 16;

var bl = b & 0xffff;

return (al*bl + ((ah*bl + al*bh) << 16))|0;

};

#endif

// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/fround

#if POLYFILL_OLD_MATH_FUNCTIONS || MIN_CHROME_VERSION < 38 || MIN_EDGE_VERSION < 12 || MIN_FIREFOX_VERSION < 26 || MIN_IE_VERSION != TARGET_NOT_SUPPORTED || MIN_SAFARI_VERSION < 80000 // || MIN_NODE_VERSION < 0.12

if (!Math.fround) {

var froundBuffer = new Float32Array(1);

Math.fround = function(x) { froundBuffer[0] = x; return froundBuffer[0] };

}

#endif

// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/clz32

#if POLYFILL_OLD_MATH_FUNCTIONS || MIN_CHROME_VERSION < 38 || MIN_EDGE_VERSION < 12 || MIN_FIREFOX_VERSION < 31 || MIN_IE_VERSION != TARGET_NOT_SUPPORTED // || MIN_NODE_VERSION < 0.12

if (!Math.clz32) Math.clz32 = function(x) {

var n = 32;

var y = x >> 16; if (y) { n -= 16; x = y; }

y = x >> 8; if (y) { n -= 8; x = y; }

y = x >> 4; if (y) { n -= 4; x = y; }

y = x >> 2; if (y) { n -= 2; x = y; }

y = x >> 1; if (y) return n - 2;

return n - x;

};

#endif

// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/trunc

#if POLYFILL_OLD_MATH_FUNCTIONS || MIN_CHROME_VERSION < 38 || MIN_EDGE_VERSION < 12 || MIN_FIREFOX_VERSION < 25 || MIN_IE_VERSION != TARGET_NOT_SUPPORTED || MIN_SAFARI_VERSION < 80000 // || MIN_NODE_VERSION < 0.12

if (!Math.trunc) Math.trunc = function(x) {

return x < 0 ? Math.ceil(x) : Math.floor(x);

};

#endif

#if ASSERTIONS

assert(Math.imul, 'This browser does not support Math.imul(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill');

assert(Math.fround, 'This browser does not support Math.fround(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill');

assert(Math.clz32, 'This browser does not support Math.clz32(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill');

assert(Math.trunc, 'This browser does not support Math.trunc(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill');

#endif

var Math_abs = Math.abs;

var Math_cos = Math.cos;

var Math_sin = Math.sin;

var Math_tan = Math.tan;

var Math_acos = Math.acos;

var Math_asin = Math.asin;

var Math_atan = Math.atan;

var Math_atan2 = Math.atan2;

var Math_exp = Math.exp;

var Math_log = Math.log;

var Math_sqrt = Math.sqrt;

var Math_ceil = Math.ceil;

var Math_floor = Math.floor;

var Math_pow = Math.pow;

var Math_imul = Math.imul;

var Math_fround = Math.fround;

var Math_round = Math.round;

var Math_min = Math.min;

var Math_max = Math.max;

var Math_clz32 = Math.clz32;

var Math_trunc = Math.trunc;