mirror of https://github.com/axmolengine/axmol.git
302 lines
7.5 KiB
C++
302 lines
7.5 KiB
C++
/**
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Copyright 2013 BlackBerry Inc.
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Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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Original file from GamePlay3D: http://gameplay3d.org
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This file was modified to fit the cocos2d-x project
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*/
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#include "math/MathUtil.h"
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#include "base/ccMacros.h"
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#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID)
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# include <cpu-features.h>
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#endif
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//#define USE_NEON32 : neon 32 code will be used
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//#define USE_NEON64 : neon 64 code will be used
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//#define INCLUDE_NEON32 : neon 32 code included
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//#define INCLUDE_NEON64 : neon 64 code included
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//#define USE_SSE : SSE code used
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//#define INCLUDE_SSE : SSE code included
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#if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
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# if defined(__arm64__)
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# define USE_NEON64
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# define INCLUDE_NEON64
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# elif defined(__ARM_NEON__)
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# define USE_NEON32
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# define INCLUDE_NEON32
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# else
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# endif
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#elif (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID)
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# if defined(__arm64__) || defined(__aarch64__)
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# define USE_NEON64
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# define INCLUDE_NEON64
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# elif defined(__ARM_NEON__)
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# define INCLUDE_NEON32
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# else
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# endif
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#else
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#endif
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#if defined(__SSE__)
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# define USE_SSE
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# define INCLUDE_SSE
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#endif
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#ifdef INCLUDE_NEON32
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# include "math/MathUtilNeon.inl"
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#endif
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#ifdef INCLUDE_NEON64
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# include "math/MathUtilNeon64.inl"
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#endif
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#ifdef INCLUDE_SSE
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# include "math/MathUtilSSE.inl"
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#endif
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#include "math/MathUtil.inl"
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NS_CC_MATH_BEGIN
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void MathUtil::smooth(float* x, float target, float elapsedTime, float responseTime)
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{
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GP_ASSERT(x);
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if (elapsedTime > 0)
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{
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*x += (target - *x) * elapsedTime / (elapsedTime + responseTime);
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}
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}
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void MathUtil::smooth(float* x, float target, float elapsedTime, float riseTime, float fallTime)
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{
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GP_ASSERT(x);
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if (elapsedTime > 0)
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{
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float delta = target - *x;
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*x += delta * elapsedTime / (elapsedTime + (delta > 0 ? riseTime : fallTime));
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}
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}
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float MathUtil::lerp(float from, float to, float alpha)
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{
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return from * (1.0f - alpha) + to * alpha;
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}
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bool MathUtil::isNeon32Enabled()
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{
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#ifdef USE_NEON32
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return true;
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#elif (defined(INCLUDE_NEON32) && (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID))
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class AnrdoidNeonChecker
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{
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public:
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AnrdoidNeonChecker()
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{
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if (android_getCpuFamily() == ANDROID_CPU_FAMILY_ARM &&
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(android_getCpuFeatures() & ANDROID_CPU_ARM_FEATURE_NEON) != 0)
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_isNeonEnabled = true;
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else
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_isNeonEnabled = false;
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}
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bool isNeonEnabled() const { return _isNeonEnabled; }
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private:
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bool _isNeonEnabled;
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};
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static AnrdoidNeonChecker checker;
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return checker.isNeonEnabled();
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#else
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return false;
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#endif
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}
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bool MathUtil::isNeon64Enabled()
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{
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#ifdef USE_NEON64
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return true;
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#else
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return false;
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#endif
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}
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void MathUtil::addMatrix(const float* m, float scalar, float* dst)
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{
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#ifdef USE_NEON32
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MathUtilNeon::addMatrix(m, scalar, dst);
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#elif defined(USE_NEON64)
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MathUtilNeon64::addMatrix(m, scalar, dst);
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#elif defined(INCLUDE_NEON32)
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if (isNeon32Enabled())
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MathUtilNeon::addMatrix(m, scalar, dst);
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else
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MathUtilC::addMatrix(m, scalar, dst);
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#else
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MathUtilC::addMatrix(m, scalar, dst);
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#endif
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}
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void MathUtil::addMatrix(const float* m1, const float* m2, float* dst)
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{
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#ifdef USE_NEON32
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MathUtilNeon::addMatrix(m1, m2, dst);
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#elif defined(USE_NEON64)
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MathUtilNeon64::addMatrix(m1, m2, dst);
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#elif defined(INCLUDE_NEON32)
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if (isNeon32Enabled())
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MathUtilNeon::addMatrix(m1, m2, dst);
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else
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MathUtilC::addMatrix(m1, m2, dst);
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#else
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MathUtilC::addMatrix(m1, m2, dst);
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#endif
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}
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void MathUtil::subtractMatrix(const float* m1, const float* m2, float* dst)
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{
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#ifdef USE_NEON32
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MathUtilNeon::subtractMatrix(m1, m2, dst);
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#elif defined(USE_NEON64)
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MathUtilNeon64::subtractMatrix(m1, m2, dst);
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#elif defined(INCLUDE_NEON32)
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if (isNeon32Enabled())
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MathUtilNeon::subtractMatrix(m1, m2, dst);
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else
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MathUtilC::subtractMatrix(m1, m2, dst);
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#else
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MathUtilC::subtractMatrix(m1, m2, dst);
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#endif
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}
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void MathUtil::multiplyMatrix(const float* m, float scalar, float* dst)
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{
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#ifdef USE_NEON32
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MathUtilNeon::multiplyMatrix(m, scalar, dst);
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#elif defined(USE_NEON64)
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MathUtilNeon64::multiplyMatrix(m, scalar, dst);
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#elif defined(INCLUDE_NEON32)
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if (isNeon32Enabled())
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MathUtilNeon::multiplyMatrix(m, scalar, dst);
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else
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MathUtilC::multiplyMatrix(m, scalar, dst);
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#else
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MathUtilC::multiplyMatrix(m, scalar, dst);
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#endif
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}
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void MathUtil::multiplyMatrix(const float* m1, const float* m2, float* dst)
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{
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#ifdef USE_NEON32
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MathUtilNeon::multiplyMatrix(m1, m2, dst);
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#elif defined(USE_NEON64)
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MathUtilNeon64::multiplyMatrix(m1, m2, dst);
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#elif defined(INCLUDE_NEON32)
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if (isNeon32Enabled())
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MathUtilNeon::multiplyMatrix(m1, m2, dst);
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else
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MathUtilC::multiplyMatrix(m1, m2, dst);
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#else
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MathUtilC::multiplyMatrix(m1, m2, dst);
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#endif
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}
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void MathUtil::negateMatrix(const float* m, float* dst)
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{
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#ifdef USE_NEON32
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MathUtilNeon::negateMatrix(m, dst);
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#elif defined(USE_NEON64)
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MathUtilNeon64::negateMatrix(m, dst);
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#elif defined(INCLUDE_NEON32)
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if (isNeon32Enabled())
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MathUtilNeon::negateMatrix(m, dst);
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else
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MathUtilC::negateMatrix(m, dst);
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#else
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MathUtilC::negateMatrix(m, dst);
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#endif
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}
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void MathUtil::transposeMatrix(const float* m, float* dst)
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{
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#ifdef USE_NEON32
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MathUtilNeon::transposeMatrix(m, dst);
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#elif defined(USE_NEON64)
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MathUtilNeon64::transposeMatrix(m, dst);
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#elif defined(INCLUDE_NEON32)
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if (isNeon32Enabled())
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MathUtilNeon::transposeMatrix(m, dst);
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else
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MathUtilC::transposeMatrix(m, dst);
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#else
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MathUtilC::transposeMatrix(m, dst);
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#endif
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}
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void MathUtil::transformVec4(const float* m, float x, float y, float z, float w, float* dst)
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{
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#ifdef USE_NEON32
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MathUtilNeon::transformVec4(m, x, y, z, w, dst);
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#elif defined(USE_NEON64)
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MathUtilNeon64::transformVec4(m, x, y, z, w, dst);
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#elif defined(INCLUDE_NEON32)
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if (isNeon32Enabled())
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MathUtilNeon::transformVec4(m, x, y, z, w, dst);
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else
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MathUtilC::transformVec4(m, x, y, z, w, dst);
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#else
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MathUtilC::transformVec4(m, x, y, z, w, dst);
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#endif
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}
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void MathUtil::transformVec4(const float* m, const float* v, float* dst)
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{
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#ifdef USE_NEON32
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MathUtilNeon::transformVec4(m, v, dst);
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#elif defined(USE_NEON64)
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MathUtilNeon64::transformVec4(m, v, dst);
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#elif defined(INCLUDE_NEON32)
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if (isNeon32Enabled())
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MathUtilNeon::transformVec4(m, v, dst);
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else
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MathUtilC::transformVec4(m, v, dst);
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#else
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MathUtilC::transformVec4(m, v, dst);
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#endif
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}
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void MathUtil::crossVec3(const float* v1, const float* v2, float* dst)
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{
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#ifdef USE_NEON32
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MathUtilNeon::crossVec3(v1, v2, dst);
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#elif defined(USE_NEON64)
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MathUtilNeon64::crossVec3(v1, v2, dst);
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#elif defined(INCLUDE_NEON32)
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if (isNeon32Enabled())
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MathUtilNeon::crossVec3(v1, v2, dst);
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else
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MathUtilC::crossVec3(v1, v2, dst);
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#else
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MathUtilC::crossVec3(v1, v2, dst);
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#endif
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}
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NS_CC_MATH_END
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