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| ** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB). |
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| |
| #include "lerpclipblend_p.h" |
| #include <Qt3DAnimation/qlerpclipblend.h> |
| #include <Qt3DAnimation/private/qlerpclipblend_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| namespace Qt3DAnimation { |
| |
| namespace Animation { |
| |
| LerpClipBlend::LerpClipBlend() |
| : ClipBlendNode(ClipBlendNode::LerpBlendType) |
| , m_startClipId() |
| , m_endClipId() |
| , m_blendFactor(0.0f) |
| { |
| } |
| |
| LerpClipBlend::~LerpClipBlend() |
| { |
| } |
| |
| void LerpClipBlend::syncFromFrontEnd(const Qt3DCore::QNode *frontEnd, bool firstTime) |
| { |
| BackendNode::syncFromFrontEnd(frontEnd, firstTime); |
| const QLerpClipBlend *node = qobject_cast<const QLerpClipBlend *>(frontEnd); |
| if (!node) |
| return; |
| |
| m_blendFactor = node->blendFactor(); |
| m_startClipId = Qt3DCore::qIdForNode(node->startClip()); |
| m_endClipId = Qt3DCore::qIdForNode(node->endClip()); |
| } |
| |
| ClipResults LerpClipBlend::doBlend(const QVector<ClipResults> &blendData) const |
| { |
| Q_ASSERT(blendData.size() == 2); |
| Q_ASSERT(blendData[0].size() == blendData[1].size()); |
| const int elementCount = blendData.first().size(); |
| ClipResults blendResults(elementCount); |
| |
| for (int i = 0; i < elementCount; ++i) |
| blendResults[i] = (1.0f - m_blendFactor) * blendData[0][i] + (m_blendFactor * blendData[1][i]); |
| |
| return blendResults; |
| } |
| |
| double LerpClipBlend::duration() const |
| { |
| ClipBlendNode *startNode = clipBlendNodeManager()->lookupNode(m_startClipId); |
| const double startNodeDuration = startNode ? startNode->duration() : 0.0; |
| |
| ClipBlendNode *endNode = clipBlendNodeManager()->lookupNode(m_endClipId); |
| const double endNodeDuration = endNode ? endNode->duration() : 0.0; |
| |
| return (1.0 - static_cast<double>(m_blendFactor)) * startNodeDuration + static_cast<double>(m_blendFactor) * endNodeDuration; |
| } |
| |
| } // Animation |
| |
| } // Qt3DAnimation |
| |
| QT_END_NAMESPACE |