gfx/skia/trunk/src/core/SkFDot6.h@deefc01c0e14
gfx/skia/trunk/src/core/SkFDot6.h
Thu, 15 Jan 2015 21:03:48 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 15 Jan 2015 21:03:48 +0100
- branch
- TOR_BUG_9701
- changeset 11
- deefc01c0e14
- permissions
- -rw-r--r--
Integrate friendly tips from Tor colleagues to make (or not) 4.5 alpha 3;
This includes removal of overloaded (but unused) methods, and addition of
a overlooked call to DataStruct::SetData(nsISupports, uint32_t, bool.)
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 */
10 #ifndef SkFDot6_DEFINED
11 #define SkFDot6_DEFINED
13 #include "SkScalar.h"
14 #include "SkMath.h"
16 typedef int32_t SkFDot6;
18 #define SK_FDot6One (64)
19 #define SK_FDot6Half (32)
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
30 #define SkFDot6Floor(x) ((x) >> 6)
31 #define SkFDot6Ceil(x) (((x) + 63) >> 6)
32 #define SkFDot6Round(x) (((x) + 32) >> 6)
34 #define SkFixedToFDot6(x) ((x) >> 10)
36 inline SkFixed SkFDot6ToFixed(SkFDot6 x) {
37 SkASSERT((x << 10 >> 10) == x);
39 return x << 10;
40 }
42 #define SkScalarToFDot6(x) (SkFDot6)((x) * 64)
43 #define SkFDot6ToScalar(x) ((SkScalar)(x) * 0.015625f)
45 inline SkFixed SkFDot6Div(SkFDot6 a, SkFDot6 b) {
46 SkASSERT(b != 0);
48 if (a == (int16_t)a) {
49 return (a << 16) / b;
50 } else {
51 return SkFixedDiv(a, b);
52 }
53 }
55 #endif
