| 1 | // Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB). |
|---|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
| 3 | |
| 4 | #include "lerpclipblend_p.h" |
| 5 | #include <Qt3DAnimation/qlerpclipblend.h> |
| 6 | #include <Qt3DAnimation/private/qlerpclipblend_p.h> |
| 7 | |
| 8 | QT_BEGIN_NAMESPACE |
| 9 | |
| 10 | namespace Qt3DAnimation { |
| 11 | |
| 12 | namespace Animation { |
| 13 | |
| 14 | LerpClipBlend::LerpClipBlend() |
| 15 | : ClipBlendNode(ClipBlendNode::LerpBlendType) |
| 16 | , m_startClipId() |
| 17 | , m_endClipId() |
| 18 | , m_blendFactor(0.0f) |
| 19 | { |
| 20 | } |
| 21 | |
| 22 | LerpClipBlend::~LerpClipBlend() |
| 23 | { |
| 24 | } |
| 25 | |
| 26 | void LerpClipBlend::syncFromFrontEnd(const Qt3DCore::QNode *frontEnd, bool firstTime) |
| 27 | { |
| 28 | BackendNode::syncFromFrontEnd(frontEnd, firstTime); |
| 29 | const QLerpClipBlend *node = qobject_cast<const QLerpClipBlend *>(object: frontEnd); |
| 30 | if (!node) |
| 31 | return; |
| 32 | |
| 33 | m_blendFactor = node->blendFactor(); |
| 34 | m_startClipId = Qt3DCore::qIdForNode(node: node->startClip()); |
| 35 | m_endClipId = Qt3DCore::qIdForNode(node: node->endClip()); |
| 36 | } |
| 37 | |
| 38 | ClipResults LerpClipBlend::doBlend(const QList<ClipResults> &blendData) const |
| 39 | { |
| 40 | Q_ASSERT(blendData.size() == 2); |
| 41 | Q_ASSERT(blendData[0].size() == blendData[1].size()); |
| 42 | const qsizetype elementCount = blendData.first().size(); |
| 43 | ClipResults blendResults(elementCount); |
| 44 | |
| 45 | for (qsizetype i = 0; i < elementCount; ++i) |
| 46 | blendResults[i] = (1.0f - m_blendFactor) * blendData[0][i] + (m_blendFactor * blendData[1][i]); |
| 47 | |
| 48 | return blendResults; |
| 49 | } |
| 50 | |
| 51 | double LerpClipBlend::duration() const |
| 52 | { |
| 53 | ClipBlendNode *startNode = clipBlendNodeManager()->lookupNode(id: m_startClipId); |
| 54 | const double startNodeDuration = startNode ? startNode->duration() : 0.0; |
| 55 | |
| 56 | ClipBlendNode *endNode = clipBlendNodeManager()->lookupNode(id: m_endClipId); |
| 57 | const double endNodeDuration = endNode ? endNode->duration() : 0.0; |
| 58 | |
| 59 | return (1.0 - static_cast<double>(m_blendFactor)) * startNodeDuration + static_cast<double>(m_blendFactor) * endNodeDuration; |
| 60 | } |
| 61 | |
| 62 | } // Animation |
| 63 | |
| 64 | } // Qt3DAnimation |
| 65 | |
| 66 | QT_END_NAMESPACE |
| 67 |