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1 | |
2 /* | |
3 * Copyright 2006 The Android Open Source Project | |
4 * | |
5 * Use of this source code is governed by a BSD-style license that can be | |
6 * found in the LICENSE file. | |
7 */ | |
8 | |
9 | |
10 #ifndef SkFP_DEFINED | |
11 #define SkFP_DEFINED | |
12 | |
13 #include "SkMath.h" | |
14 | |
15 #ifdef SK_SCALAR_IS_FLOAT | |
16 | |
17 typedef float SkFP; | |
18 | |
19 #define SkScalarToFP(n) (n) | |
20 #define SkFPToScalar(n) (n) | |
21 #define SkIntToFP(n) SkIntToScalar(n) | |
22 #define SkFPRound(x) SkScalarRound(n) | |
23 #define SkFPCeil(x) SkScalarCeil(n) | |
24 #define SkFPFloor(x) SkScalarFloor(n) | |
25 | |
26 #define SkFPNeg(x) (-(x)) | |
27 #define SkFPAbs(x) SkScalarAbs(x) | |
28 #define SkFPAdd(a, b) ((a) + (b)) | |
29 #define SkFPSub(a, b) ((a) - (b)) | |
30 #define SkFPMul(a, b) ((a) * (b)) | |
31 #define SkFPMulInt(a, n) ((a) * (n)) | |
32 #define SkFPDiv(a, b) ((a) / (b)) | |
33 #define SkFPDivInt(a, n) ((a) / (n)) | |
34 #define SkFPInvert(x) SkScalarInvert(x) | |
35 #define SkFPSqrt(x) SkScalarSqrt(x) | |
36 #define SkFPCubeRoot(x) sk_float_pow(x, 0.3333333f) | |
37 | |
38 #define SkFPLT(a, b) ((a) < (b)) | |
39 #define SkFPLE(a, b) ((a) <= (b)) | |
40 #define SkFPGT(a, b) ((a) > (b)) | |
41 #define SkFPGE(a, b) ((a) >= (b)) | |
42 | |
43 #else // scalar is fixed | |
44 | |
45 #include "SkFloat.h" | |
46 | |
47 typedef int32_t SkFP; | |
48 | |
49 #define SkScalarToFP(n) SkFloat::SetShift(n, -16) | |
50 #define SkFPToScalar(n) SkFloat::GetShift(n, -16) | |
51 #define SkIntToFP(n) SkFloat::SetShift(n, 0) | |
52 #define SkFPRound(x) SkFloat::Round(x); | |
53 #define SkFPCeil(x) SkFloat::Ceil(); | |
54 #define SkFPFloor(x) SkFloat::Floor(); | |
55 | |
56 #define SkFPNeg(x) SkFloat::Neg(x) | |
57 #define SkFPAbs(x) SkFloat::Abs(x) | |
58 #define SkFPAdd(a, b) SkFloat::Add(a, b) | |
59 #define SkFPSub(a, b) SkFloat::Add(a, SkFloat::Neg(b)) | |
60 #define SkFPMul(a, b) SkFloat::Mul(a, b) | |
61 #define SkFPMulInt(a, n) SkFloat::MulInt(a, n) | |
62 #define SkFPDiv(a, b) SkFloat::Div(a, b) | |
63 #define SkFPDivInt(a, n) SkFloat::DivInt(a, n) | |
64 #define SkFPInvert(x) SkFloat::Invert(x) | |
65 #define SkFPSqrt(x) SkFloat::Sqrt(x) | |
66 #define SkFPCubeRoot(x) SkFloat::CubeRoot(x) | |
67 | |
68 #define SkFPLT(a, b) (SkFloat::Cmp(a, b) < 0) | |
69 #define SkFPLE(a, b) (SkFloat::Cmp(a, b) <= 0) | |
70 #define SkFPGT(a, b) (SkFloat::Cmp(a, b) > 0) | |
71 #define SkFPGE(a, b) (SkFloat::Cmp(a, b) >= 0) | |
72 | |
73 #endif | |
74 | |
75 #ifdef SK_DEBUG | |
76 void SkFP_UnitTest(); | |
77 #endif | |
78 | |
79 #endif | |
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