зеркало из https://github.com/mozilla/moz-skia.git
66 строки
1.5 KiB
C
66 строки
1.5 KiB
C
/*
|
|
* Copyright (C) 2006 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef SkFDot6_DEFINED
|
|
#define SkFDot6_DEFINED
|
|
|
|
#include "SkMath.h"
|
|
|
|
typedef int32_t SkFDot6;
|
|
|
|
#define SK_FDot6One (64)
|
|
#define SK_FDot6Half (32)
|
|
|
|
#ifdef SK_DEBUG
|
|
inline SkFDot6 SkIntToFDot6(S16CPU x) {
|
|
SkASSERT(SkToS16(x) == x);
|
|
return x << 6;
|
|
}
|
|
#else
|
|
#define SkIntToFDot6(x) ((x) << 6)
|
|
#endif
|
|
|
|
#define SkFDot6Floor(x) ((x) >> 6)
|
|
#define SkFDot6Ceil(x) (((x) + 63) >> 6)
|
|
#define SkFDot6Round(x) (((x) + 32) >> 6)
|
|
|
|
#define SkFixedToFDot6(x) ((x) >> 10)
|
|
|
|
inline SkFixed SkFDot6ToFixed(SkFDot6 x) {
|
|
SkASSERT((x << 10 >> 10) == x);
|
|
|
|
return x << 10;
|
|
}
|
|
|
|
#ifdef SK_SCALAR_IS_FLOAT
|
|
#define SkScalarToFDot6(x) (SkFDot6)((x) * 64)
|
|
#else
|
|
#define SkScalarToFDot6(x) ((x) >> 10)
|
|
#endif
|
|
|
|
inline SkFixed SkFDot6Div(SkFDot6 a, SkFDot6 b) {
|
|
SkASSERT(b != 0);
|
|
|
|
if (a == (int16_t)a) {
|
|
return (a << 16) / b;
|
|
} else {
|
|
return SkFixedDiv(a, b);
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|