additiveclipblend.cpp

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// Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB).

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

#include "additiveclipblend_p.h"

#include <Qt3DAnimation/qadditiveclipblend.h>

#include <Qt3DAnimation/private/qadditiveclipblend_p.h>

QT_BEGIN_NAMESPACE

namespace Qt3DAnimation {

namespace Animation {

AdditiveClipBlend::AdditiveClipBlend()

    : ClipBlendNode(ClipBlendNode::AdditiveBlendType)

    , m_baseClipId()

    , m_additiveClipId()

    , m_additiveFactor(0.0f)

AdditiveClipBlend::~AdditiveClipBlend()

void AdditiveClipBlend::syncFromFrontEnd(const Qt3DCore::QNode *frontEnd, bool firstTime)

    BackendNode::syncFromFrontEnd(frontEnd, firstTime);

    const QAdditiveClipBlend *node = qobject_cast<const QAdditiveClipBlend *>(frontEnd);

    if (!node)

        return;

    m_additiveFactor = node->additiveFactor();

    m_baseClipId = Qt3DCore::qIdForNode(node->baseClip());

    m_additiveClipId = Qt3DCore::qIdForNode(node->additiveClip());

ClipResults AdditiveClipBlend::doBlend(const QList<ClipResults> &blendData) const

    Q_ASSERT(blendData.size() == 2);

    Q_ASSERT(blendData[0].size() == blendData[1].size());

    const qsizetype elementCount = blendData.first().size();

    ClipResults blendResults(elementCount);

    for (qsizetype i = 0; i < elementCount; ++i)

        blendResults[i] = blendData[0][i] + m_additiveFactor * blendData[1][i];

    return blendResults;

} // Animation

} // Qt3DAnimation

QT_END_NAMESPACE