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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2006 The Android Open Source Project | 3 * Copyright 2006 The Android Open Source Project |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 | 8 |
9 | 9 |
10 #ifndef SkFDot6_DEFINED | 10 #ifndef SkFDot6_DEFINED |
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34 #define SkFixedToFDot6(x) ((x) >> 10) | 34 #define SkFixedToFDot6(x) ((x) >> 10) |
35 | 35 |
36 inline SkFixed SkFDot6ToFixed(SkFDot6 x) { | 36 inline SkFixed SkFDot6ToFixed(SkFDot6 x) { |
37 SkASSERT((x << 10 >> 10) == x); | 37 SkASSERT((x << 10 >> 10) == x); |
38 | 38 |
39 return x << 10; | 39 return x << 10; |
40 } | 40 } |
41 | 41 |
42 #ifdef SK_SCALAR_IS_FLOAT | 42 #ifdef SK_SCALAR_IS_FLOAT |
43 #define SkScalarToFDot6(x) (SkFDot6)((x) * 64) | 43 #define SkScalarToFDot6(x) (SkFDot6)((x) * 64) |
44 #define SkFDot6ToScalar(x) ((SkScalar)(x) * SkFloatToScalar(0.015625f)) | 44 #define SkFDot6ToScalar(x) ((SkScalar)(x) * 0.015625f) |
45 #else | 45 #else |
46 #define SkScalarToFDot6(x) ((x) >> 10) | 46 #define SkScalarToFDot6(x) ((x) >> 10) |
47 #define SkFDot6ToScalar(x) ((x) << 10) | 47 #define SkFDot6ToScalar(x) ((x) << 10) |
48 #endif | 48 #endif |
49 | 49 |
50 inline SkFixed SkFDot6Div(SkFDot6 a, SkFDot6 b) { | 50 inline SkFixed SkFDot6Div(SkFDot6 a, SkFDot6 b) { |
51 SkASSERT(b != 0); | 51 SkASSERT(b != 0); |
52 | 52 |
53 if (a == (int16_t)a) { | 53 if (a == (int16_t)a) { |
54 return (a << 16) / b; | 54 return (a << 16) / b; |
55 } else { | 55 } else { |
56 return SkFixedDiv(a, b); | 56 return SkFixedDiv(a, b); |
57 } | 57 } |
58 } | 58 } |
59 | 59 |
60 #endif | 60 #endif |
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