mirror of https://github.com/axmolengine/axmol.git
88 lines
3.2 KiB
C
88 lines
3.2 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 SkFloatingPoint_DEFINED
|
|
#define SkFloatingPoint_DEFINED
|
|
|
|
#include "SkTypes.h"
|
|
|
|
#ifdef SK_CAN_USE_FLOAT
|
|
|
|
#include <math.h>
|
|
#include <float.h>
|
|
#include "SkFloatBits.h"
|
|
|
|
// If math.h had powf(float, float), I could remove this wrapper
|
|
static inline float sk_float_pow(float base, float exp) {
|
|
return static_cast<float>(pow(static_cast<double>(base),
|
|
static_cast<double>(exp)));
|
|
}
|
|
|
|
static inline float sk_float_copysign(float x, float y) {
|
|
int32_t xbits = SkFloat2Bits(x);
|
|
int32_t ybits = SkFloat2Bits(y);
|
|
return SkBits2Float((xbits & 0x7FFFFFFF) | (ybits & 0x80000000));
|
|
}
|
|
|
|
#ifdef SK_BUILD_FOR_WINCE
|
|
#define sk_float_sqrt(x) (float)::sqrt(x)
|
|
#define sk_float_sin(x) (float)::sin(x)
|
|
#define sk_float_cos(x) (float)::cos(x)
|
|
#define sk_float_tan(x) (float)::tan(x)
|
|
#define sk_float_acos(x) (float)::acos(x)
|
|
#define sk_float_asin(x) (float)::asin(x)
|
|
#define sk_float_atan2(y,x) (float)::atan2(y,x)
|
|
#define sk_float_abs(x) (float)::fabs(x)
|
|
#define sk_float_mod(x,y) (float)::fmod(x,y)
|
|
#define sk_float_exp(x) (float)::exp(x)
|
|
#define sk_float_log(x) (float)::log(x)
|
|
#define sk_float_floor(x) (float)::floor(x)
|
|
#define sk_float_ceil(x) (float)::ceil(x)
|
|
#else
|
|
#define sk_float_sqrt(x) sqrtf(x)
|
|
#define sk_float_sin(x) sinf(x)
|
|
#define sk_float_cos(x) cosf(x)
|
|
#define sk_float_tan(x) tanf(x)
|
|
#define sk_float_floor(x) floorf(x)
|
|
#define sk_float_ceil(x) ceilf(x)
|
|
#ifdef SK_BUILD_FOR_MAC
|
|
#define sk_float_acos(x) static_cast<float>(acos(x))
|
|
#define sk_float_asin(x) static_cast<float>(asin(x))
|
|
#else
|
|
#define sk_float_acos(x) acosf(x)
|
|
#define sk_float_asin(x) asinf(x)
|
|
#endif
|
|
#define sk_float_atan2(y,x) atan2f(y,x)
|
|
#define sk_float_abs(x) fabsf(x)
|
|
#define sk_float_mod(x,y) fmodf(x,y)
|
|
#define sk_float_exp(x) expf(x)
|
|
#define sk_float_log(x) logf(x)
|
|
#define sk_float_isNaN(x) _isnan(x)
|
|
#endif
|
|
|
|
#ifdef SK_USE_FLOATBITS
|
|
#define sk_float_floor2int(x) SkFloatToIntFloor(x)
|
|
#define sk_float_round2int(x) SkFloatToIntRound(x)
|
|
#define sk_float_ceil2int(x) SkFloatToIntCeil(x)
|
|
#else
|
|
#define sk_float_floor2int(x) (int)sk_float_floor(x)
|
|
#define sk_float_round2int(x) (int)sk_float_floor((x) + 0.5f)
|
|
#define sk_float_ceil2int(x) (int)sk_float_ceil(x)
|
|
#endif
|
|
|
|
#endif
|
|
#endif
|