Mercurial > mm7

annotate Math.h @ 1581:a5fdf6cf8d74

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Слияние
author Ritor1
date Tue, 10 Sep 2013 23:45:55 +0600
parents e668660457dc
children 89dec2be255f
rev   line source
0
Ritor1
parents:
diff changeset
1 #pragma once
1527
f0551cd4cbc9 Clean Math.
yoctozepto
parents: 1262
diff changeset
2
1131
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
3 #include <cassert>
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
4 #include <limits>
0
Ritor1
parents:
diff changeset
5
Ritor1
parents:
diff changeset
6 /* 186 */
Ritor1
parents:
diff changeset
7 #pragma pack(push, 1)
Ritor1
parents:
diff changeset
8 struct stru193_math
Ritor1
parents:
diff changeset
9 {
Ritor1
parents:
diff changeset
10 stru193_math();
323
d720a13e2273 Very basic picking & entering houses
Nomad
parents: 0
diff changeset
11 int Cos(int angle);
0
Ritor1
parents:
diff changeset
12 unsigned int Atan2(int x, int y);
323
d720a13e2273 Very basic picking & entering houses
Nomad
parents: 0
diff changeset
13 int Sin(int angle);
0
Ritor1
parents:
diff changeset
14
Ritor1
parents:
diff changeset
15 int pTanTable[520];
Ritor1
parents:
diff changeset
16 int pCosTable[520];
Ritor1
parents:
diff changeset
17 int pInvCosTable[520];
1214
0d6c7ff3cddd simplified stru193_math constructor and class definition
Grumpy7
parents: 1131
diff changeset
18 static const unsigned int uIntegerPi = 1024;
0d6c7ff3cddd simplified stru193_math constructor and class definition
Grumpy7
parents: 1131
diff changeset
19 static const unsigned int uIntegerHalfPi = 512;
0d6c7ff3cddd simplified stru193_math constructor and class definition
Grumpy7
parents: 1131
diff changeset
20 static const unsigned int uIntegerDoublePi = 2048;
0d6c7ff3cddd simplified stru193_math constructor and class definition
Grumpy7
parents: 1131
diff changeset
21 static const unsigned int uDoublePiMask = 2047;
0d6c7ff3cddd simplified stru193_math constructor and class definition
Grumpy7
parents: 1131
diff changeset
22 static const unsigned int uPiMask = 1023;
0d6c7ff3cddd simplified stru193_math constructor and class definition
Grumpy7
parents: 1131
diff changeset
23 static const unsigned int uHalfPiMask = 511;
0
Ritor1
parents:
diff changeset
24 };
Ritor1
parents:
diff changeset
25 #pragma pack(pop)
Ritor1
parents:
diff changeset
26
1556
e668660457dc Some more cleaning
Nomad
parents: 1544
diff changeset
27 __int64 fixpoint_sub0(int, int);
e668660457dc Some more cleaning
Nomad
parents: 1544
diff changeset
28 __int64 fixpoint_dot(int x1, int x2, int y1, int y2, int z1, int z2);
e668660457dc Some more cleaning
Nomad
parents: 1544
diff changeset
29 __int64 fixpoint_div(int, int);
e668660457dc Some more cleaning
Nomad
parents: 1544
diff changeset
30 __int64 fixpoint_mul(int, int);
1051
05c62d166182 004C1D2B cleaned
Nomad
parents: 323
diff changeset
31 int fixpoint_from_float(float value);
05c62d166182 004C1D2B cleaned
Nomad
parents: 323
diff changeset
32
1131
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
33 template <typename FloatType>
1527
f0551cd4cbc9 Clean Math.
yoctozepto
parents: 1262
diff changeset
34 inline int bankersRounding(
1131
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
35 const FloatType& value
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
36 ) {
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
37 assert("Method unsupported for this type" && false);
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
38 return value;
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
39 }
1130
d98415be04ca banker's rounding template
Grumpy7
parents: 1051
diff changeset
40
1527
f0551cd4cbc9 Clean Math.
yoctozepto
parents: 1262
diff changeset
41 template<> inline int bankersRounding<float>(const float& inValue)
1131
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
42 {
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
43 union Cast
1130
d98415be04ca banker's rounding template
Grumpy7
parents: 1051
diff changeset
44 {
1131
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
45 double d;
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
46 long l;
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
47 };
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
48 volatile Cast c;
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
49 c.d = inValue + 6755399441055744.0;
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
50 return c.l;
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
51 }
1130
d98415be04ca banker's rounding template
Grumpy7
parents: 1051
diff changeset
52
1131
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
53 #pragma push_macro("max")
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
54 #undef max
1527
f0551cd4cbc9 Clean Math.
yoctozepto
parents: 1262
diff changeset
55 template<> inline int bankersRounding<double>(const double& inValue)
1131
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
56 {
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
57 double maxValue = std::numeric_limits<int>::max();
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
58 assert(maxValue - 6755399441055744.0 >= inValue);
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
59 union Cast
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
60 {
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
61 double d;
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
62 long l;
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
63 };
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
64 volatile Cast c;
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
65 c.d = inValue + 6755399441055744.0;
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
66 return c.l;
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
67 }
71ba92960bc5 banker's rounding template made as fast as before and a bit more safe
Grumpy7
parents: 1130
diff changeset
68 #pragma pop_macro("max")
1130
d98415be04ca banker's rounding template
Grumpy7
parents: 1051
diff changeset
69
1527
f0551cd4cbc9 Clean Math.
yoctozepto
parents: 1262
diff changeset
70 extern struct stru193_math *stru_5C6E00;