axmol/core/3d/Animation3D.cpp

/****************************************************************************
 Copyright (c) 2014-2016 Chukong Technologies Inc.
 Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
 Copyright (c) 2019-present Axmol Engine contributors (see AUTHORS.md).

 https://axmol.dev/

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 The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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#include "3d/Animation3D.h"
#include "3d/Bundle3D.h"
#include "platform/FileUtils.h"
#include "base/axstd.h"

namespace ax
{

Animation3D* Animation3D::create(std::string_view fileName, std::string_view animationName)
{
    std::string fullPath = FileUtils::getInstance()->fullPathForFilename(fileName);
    fullPath.append("#").append(animationName);
    auto animation = Animation3DCache::getInstance()->getAnimation(fullPath);
    if (animation != nullptr)
        return animation;

    animation = new Animation3D();
    if (animation->initWithFile(fileName, animationName))
    {
        animation->autorelease();
    }
    else
    {
        AX_SAFE_DELETE(animation);
    }

    return animation;
}

bool Animation3D::initWithFile(std::string_view filename, std::string_view animationName)
{
    std::string fullPath = FileUtils::getInstance()->fullPathForFilename(filename);

    // load animation here
    auto bundle = Bundle3D::createBundle();
    Animation3DData animationdata;
    if (bundle->load(fullPath) && bundle->loadAnimationData(animationName, &animationdata) && init(animationdata))
    {
        fullPath.append("#").append(animationName);
        Animation3DCache::getInstance()->addAnimation(fullPath, this);
        Bundle3D::destroyBundle(bundle);
        return true;
    }

    Bundle3D::destroyBundle(bundle);

    return false;
}

Animation3D::Curve* Animation3D::getBoneCurveByName(std::string_view name) const
{
    auto it = _boneCurves.find(name);
    if (it != _boneCurves.end())
        return it->second;

    return nullptr;
}

Animation3D::Animation3D() : _duration(0) {}

Animation3D::~Animation3D()
{
    for (const auto& itor : _boneCurves)
    {
        Curve* curve = itor.second;
        AX_SAFE_DELETE(curve);
    }
}

Animation3D::Curve::Curve() : translateCurve(nullptr), rotCurve(nullptr), scaleCurve(nullptr) {}
Animation3D::Curve::~Curve()
{
    AX_SAFE_RELEASE_NULL(translateCurve);
    AX_SAFE_RELEASE_NULL(rotCurve);
    AX_SAFE_RELEASE_NULL(scaleCurve);
}

//constexpr bool kkk = std::is_trivially_copyable<Quaternion>::value;

bool Animation3D::init(const Animation3DData& data)
{
    _duration = data._totalTime;

    {
        axstd::pod_vector<float> keys;
        axstd::pod_vector<Vec3> values;
        for (const auto& iter : data._translationKeys)
        {
            Curve* curve = _boneCurves[iter.first];
            if (curve == nullptr)
            {
                curve                   = new Curve();
                _boneCurves[iter.first] = curve;
            }

            if (iter.second.empty())
                continue;


            axstd::resize_and_transform(iter.second.begin(), iter.second.end(), keys,
                                        [](const auto& keyIter) { return keyIter._time; });
            axstd::resize_and_transform(iter.second.begin(), iter.second.end(), values,
                                        [](const auto& keyIter) { return keyIter._key; });

            curve->translateCurve = Curve::AnimationCurveVec3::create(&keys[0], &values[0].x, (int)keys.size());
            if (curve->translateCurve)
                curve->translateCurve->retain();
        }
    }

    {
        axstd::pod_vector<float> keys;
        axstd::pod_vector<Quaternion> values;
        for (const auto& iter : data._rotationKeys)
        {
            Curve* curve = _boneCurves[iter.first];
            if (curve == nullptr)
            {
                curve                   = new Curve();
                _boneCurves[iter.first] = curve;
            }

            if (iter.second.empty())
                continue;

            axstd::resize_and_transform(iter.second.begin(), iter.second.end(), keys,
                                        [](const auto& keyIter) { return keyIter._time; });
            axstd::resize_and_transform(iter.second.begin(), iter.second.end(), values,
                                        [](const auto& keyIter) { return keyIter._key; });

            curve->rotCurve = Curve::AnimationCurveQuat::create(&keys[0], &values[0].x, (int)keys.size());
            if (curve->rotCurve)
                curve->rotCurve->retain();
        }
    }

    {
        axstd::pod_vector<float> keys;
        axstd::pod_vector<Vec3> values;
        for (const auto& iter : data._scaleKeys)
        {
            Curve* curve = _boneCurves[iter.first];
            if (curve == nullptr)
            {
                curve                   = new Curve();
                _boneCurves[iter.first] = curve;
            }

            if (iter.second.empty())
                continue;

            axstd::resize_and_transform(iter.second.begin(), iter.second.end(), keys,
                                        [](const auto& keyIter) { return keyIter._time; });
            axstd::resize_and_transform(iter.second.begin(), iter.second.end(), values,
                                        [](const auto& keyIter) { return keyIter._key; });

            curve->scaleCurve = Curve::AnimationCurveVec3::create(&keys[0], &values[0].x, (int)keys.size());
            if (curve->scaleCurve)
                curve->scaleCurve->retain();
        }
    }

    return true;
}

////////////////////////////////////////////////////////////////
Animation3DCache* Animation3DCache::_cacheInstance = nullptr;

Animation3DCache* Animation3DCache::getInstance()
{
    if (_cacheInstance == nullptr)
        _cacheInstance = new Animation3DCache();

    return _cacheInstance;
}
void Animation3DCache::destroyInstance()
{
    AX_SAFE_DELETE(_cacheInstance);
}

Animation3D* Animation3DCache::getAnimation(std::string_view key)
{
    auto it = _animations.find(key);
    if (it != _animations.end())
        return it->second;
    return nullptr;
}

void Animation3DCache::addAnimation(std::string_view key, Animation3D* animation)
{
    const auto& it = _animations.find(key);
    if (it != _animations.end())
    {
        return;  // already have this key
    }
    _animations.emplace(key, animation);  //_animations[key] = animation;
    animation->retain();
}

void Animation3DCache::removeAllAnimations()
{
    for (auto&& itor : _animations)
    {
        AX_SAFE_RELEASE(itor.second);
    }
    _animations.clear();
}
void Animation3DCache::removeUnusedAnimation()
{
    for (auto itor = _animations.begin(); itor != _animations.end();)
    {
        if (itor->second->getReferenceCount() == 1)
        {
            itor->second->release();
            itor = _animations.erase(itor);
        }
        else
            ++itor;
    }
}

Animation3DCache::Animation3DCache() {}
Animation3DCache::~Animation3DCache()
{
    removeAllAnimations();
}

}