The Tor Browser / file comparison
comparison: gfx/skia/trunk/src/core/SkFDot6.h
gfx/skia/trunk/src/core/SkFDot6.h
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
equal
deleted
inserted
replaced
| -1:000000000000 | 0:47f7ba8f7c41 |
|---|---|
| 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 SkFDot6_DEFINED | |
| 11 #define SkFDot6_DEFINED | |
| 12 | |
| 13 #include "SkScalar.h" | |
| 14 #include "SkMath.h" | |
| 15 | |
| 16 typedef int32_t SkFDot6; | |
| 17 | |
| 18 #define SK_FDot6One (64) | |
| 19 #define SK_FDot6Half (32) | |
| 20 | |
| 21 #ifdef SK_DEBUG | |
| 22 inline SkFDot6 SkIntToFDot6(S16CPU x) { | |
| 23 SkASSERT(SkToS16(x) == x); | |
| 24 return x << 6; | |
| 25 } | |
| 26 #else | |
| 27 #define SkIntToFDot6(x) ((x) << 6) | |
| 28 #endif | |
| 29 | |
| 30 #define SkFDot6Floor(x) ((x) >> 6) | |
| 31 #define SkFDot6Ceil(x) (((x) + 63) >> 6) | |
| 32 #define SkFDot6Round(x) (((x) + 32) >> 6) | |
| 33 | |
| 34 #define SkFixedToFDot6(x) ((x) >> 10) | |
| 35 | |
| 36 inline SkFixed SkFDot6ToFixed(SkFDot6 x) { | |
| 37 SkASSERT((x << 10 >> 10) == x); | |
| 38 | |
| 39 return x << 10; | |
| 40 } | |
| 41 | |
| 42 #define SkScalarToFDot6(x) (SkFDot6)((x) * 64) | |
| 43 #define SkFDot6ToScalar(x) ((SkScalar)(x) * 0.015625f) | |
| 44 | |
| 45 inline SkFixed SkFDot6Div(SkFDot6 a, SkFDot6 b) { | |
| 46 SkASSERT(b != 0); | |
| 47 | |
| 48 if (a == (int16_t)a) { | |
| 49 return (a << 16) / b; | |
| 50 } else { | |
| 51 return SkFixedDiv(a, b); | |
| 52 } | |
| 53 } | |
| 54 | |
| 55 #endif |
