The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gfx/skia/trunk/src/core/SkFDot6.h	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,55 @@
     1.4 +
     1.5 +/*
     1.6 + * Copyright 2006 The Android Open Source Project
     1.7 + *
     1.8 + * Use of this source code is governed by a BSD-style license that can be
     1.9 + * found in the LICENSE file.
    1.10 + */
    1.11 +
    1.12 +
    1.13 +#ifndef SkFDot6_DEFINED
    1.14 +#define SkFDot6_DEFINED
    1.15 +
    1.16 +#include "SkScalar.h"
    1.17 +#include "SkMath.h"
    1.18 +
    1.19 +typedef int32_t SkFDot6;
    1.20 +
    1.21 +#define SK_FDot6One         (64)
    1.22 +#define SK_FDot6Half        (32)
    1.23 +
    1.24 +#ifdef SK_DEBUG
    1.25 +    inline SkFDot6 SkIntToFDot6(S16CPU x) {
    1.26 +        SkASSERT(SkToS16(x) == x);
    1.27 +        return x << 6;
    1.28 +    }
    1.29 +#else
    1.30 +    #define SkIntToFDot6(x) ((x) << 6)
    1.31 +#endif
    1.32 +
    1.33 +#define SkFDot6Floor(x)     ((x) >> 6)
    1.34 +#define SkFDot6Ceil(x)      (((x) + 63) >> 6)
    1.35 +#define SkFDot6Round(x)     (((x) + 32) >> 6)
    1.36 +
    1.37 +#define SkFixedToFDot6(x)   ((x) >> 10)
    1.38 +
    1.39 +inline SkFixed SkFDot6ToFixed(SkFDot6 x) {
    1.40 +    SkASSERT((x << 10 >> 10) == x);
    1.41 +
    1.42 +    return x << 10;
    1.43 +}
    1.44 +
    1.45 +#define SkScalarToFDot6(x)  (SkFDot6)((x) * 64)
    1.46 +#define SkFDot6ToScalar(x)  ((SkScalar)(x) * 0.015625f)
    1.47 +
    1.48 +inline SkFixed SkFDot6Div(SkFDot6 a, SkFDot6 b) {
    1.49 +    SkASSERT(b != 0);
    1.50 +
    1.51 +    if (a == (int16_t)a) {
    1.52 +        return (a << 16) / b;
    1.53 +    } else {
    1.54 +        return SkFixedDiv(a, b);
    1.55 +    }
    1.56 +}
    1.57 +
    1.58 +#endif