1 #include "lottieitem.h"
10 * 1. time stretch is pre calculated and applied to all the properties of the
11 * lottilayer model and all its children
12 * 2. The frame property could be reversed using,time-reverse layer property in
13 * AE. which means (start frame > endFrame) 3.
16 LOTCompItem::LOTCompItem(LOTModel *model)
17 : mRootModel(model), mUpdateViewBox(false), mCurFrameNo(-1)
19 mCompData = model->mRoot.get();
20 mRootLayer = createLayerItem(mCompData->mRootLayer.get());
21 mRootLayer->updateStaticProperty();
22 mViewSize = mCompData->size();
25 std::unique_ptr<LOTLayerItem>
26 LOTCompItem::createLayerItem(LOTLayerData *layerData)
28 switch (layerData->mLayerType) {
29 case LayerType::Precomp: {
30 return std::make_unique<LOTCompLayerItem>(layerData);
33 case LayerType::Solid: {
34 return std::make_unique<LOTSolidLayerItem>(layerData);
37 case LayerType::Shape: {
38 return std::make_unique<LOTShapeLayerItem>(layerData);
41 case LayerType::Null: {
42 return std::make_unique<LOTNullLayerItem>(layerData);
51 void LOTCompItem::resize(const VSize &size)
53 if (mViewSize == size) return;
55 mUpdateViewBox = true;
58 VSize LOTCompItem::size() const
63 bool LOTCompItem::update(int frameNo)
65 // check if cached frame is same as requested frame.
66 if (!mUpdateViewBox && (mCurFrameNo == frameNo)) return false;
69 * if viewbox dosen't scale exactly to the viewport
70 * we scale the viewbox keeping AspectRatioPreserved and then align the
71 * viewbox to the viewport using AlignCenter rule.
73 VSize viewPort = mViewSize;
74 VSize viewBox = mCompData->size();
76 float sx = float(viewPort.width()) / viewBox.width();
77 float sy = float(viewPort.height()) / viewBox.height();
78 float scale = fmin(sx, sy);
79 float tx = (viewPort.width() - viewBox.width() * scale) * 0.5;
80 float ty = (viewPort.height() - viewBox.height() * scale) * 0.5;
83 m.translate(tx, ty).scale(scale, scale);
84 mRootLayer->update(frameNo, m, 1.0);
86 mCurFrameNo = frameNo;
87 mUpdateViewBox = false;
91 void LOTCompItem::buildRenderList()
93 mDrawableList.clear();
94 mRootLayer->renderList(mDrawableList);
97 for (auto &i : mDrawableList) {
98 LOTDrawable *lotDrawable = static_cast<LOTDrawable *>(i);
100 mRenderList.push_back(lotDrawable->mCNode.get());
104 const std::vector<LOTNode *> &LOTCompItem::renderList() const
109 void LOTCompItem::buildRenderTree()
111 mRootLayer->buildLayerNode();
114 const LOTLayerNode * LOTCompItem::renderTree() const
116 return mRootLayer->layerNode();
119 bool LOTCompItem::render(const lottie::Surface &surface)
121 VBitmap bitmap((uchar *)surface.buffer(), surface.width(), surface.height(),
122 surface.bytesPerLine(), VBitmap::Format::ARGB32_Premultiplied,
125 /* schedule all preprocess task for this frame at once.
127 mDrawableList.clear();
128 mRootLayer->renderList(mDrawableList);
129 VRect clip(0, 0, surface.width(), surface.height());
130 for (auto &e : mDrawableList) {
134 VPainter painter(&bitmap);
135 mRootLayer->render(&painter, {}, {}, nullptr);
140 void LOTMaskItem::update(int frameNo, const VMatrix &parentMatrix,
141 float parentAlpha, const DirtyFlag &/*flag*/)
143 if (mData->mShape.isStatic()) {
144 if (mLocalPath.empty()) {
145 mData->mShape.value(frameNo).toPath(mLocalPath);
148 mData->mShape.value(frameNo).toPath(mLocalPath);
150 float opacity = mData->opacity(frameNo);
151 opacity = opacity * parentAlpha;
152 mCombinedAlpha = opacity;
155 mFinalPath.addPath(mLocalPath);
156 mFinalPath.transform(parentMatrix);
158 VPath tmp = mFinalPath;
160 mRleTask = VRaster::generateFillInfo(std::move(tmp), std::move(mRle));
164 VRle LOTMaskItem::rle()
166 if (mRleTask.valid()) {
167 mRle = mRleTask.get();
168 if (!vCompare(mCombinedAlpha, 1.0f))
169 mRle *= (mCombinedAlpha * 255);
170 if (mData->mInv) mRle.invert();
175 void LOTLayerItem::buildLayerNode()
178 mLayerCNode = std::make_unique<LOTLayerNode>();
179 mLayerCNode->mMaskList.ptr = nullptr;
180 mLayerCNode->mMaskList.size = 0;
181 mLayerCNode->mLayerList.ptr = nullptr;
182 mLayerCNode->mLayerList.size = 0;
183 mLayerCNode->mNodeList.ptr = nullptr;
184 mLayerCNode->mNodeList.size = 0;
185 mLayerCNode->mMatte = MatteNone;
186 mLayerCNode->mVisible = 0;
188 mLayerCNode->mVisible = visible();
191 switch (mLayerData->mMatteType) {
192 case MatteType::Alpha:
193 mLayerCNode->mMatte = MatteAlpha;
195 case MatteType::AlphaInv:
196 mLayerCNode->mMatte = MatteAlphaInv;
198 case MatteType::Luma:
199 mLayerCNode->mMatte = MatteLuma;
201 case MatteType::LumaInv:
202 mLayerCNode->mMatte = MatteLumaInv;
205 mLayerCNode->mMatte = MatteNone;
211 for (const auto &mask : mMasks) {
213 const std::vector<VPath::Element> &elm = mask->mFinalPath.elements();
214 const std::vector<VPointF> & pts = mask->mFinalPath.points();
215 const float *ptPtr = reinterpret_cast<const float *>(pts.data());
216 const char * elmPtr = reinterpret_cast<const char *>(elm.data());
217 cNode.mPath.ptPtr = ptPtr;
218 cNode.mPath.ptCount = pts.size();
219 cNode.mPath.elmPtr = elmPtr;
220 cNode.mPath.elmCount = elm.size();
221 switch (mask->maskMode()) {
222 case LOTMaskData::Mode::Add:
223 cNode.mMode = MaskModeAdd;
225 case LOTMaskData::Mode::Substarct:
226 cNode.mMode = MaskModeSubstract;
228 case LOTMaskData::Mode::Intersect:
229 cNode.mMode = MaskModeIntersect;
231 case LOTMaskData::Mode::Difference:
232 cNode.mMode = MaskModeDifference;
235 cNode.mMode = MaskModeAdd;
238 mMasksCNode.push_back(std::move(cNode));
240 mLayerCNode->mMaskList.ptr = mMasksCNode.data();
241 mLayerCNode->mMaskList.size = mMasksCNode.size();
245 void LOTLayerItem::render(VPainter *painter, const VRle &inheritMask, const VRle &inheritMatte, LOTLayerItem *matteSource)
249 mDrawableList.clear();
250 matteSource->renderList(mDrawableList);
251 for (auto &i : mDrawableList) {
252 matteRle = matteRle + i->rle();
254 if (!inheritMatte.empty())
255 matteRle = matteRle & inheritMatte;
257 matteRle = inheritMatte;
259 mDrawableList.clear();
260 renderList(mDrawableList);
264 mask = maskRle(painter->clipBoundingRect());
265 if (!inheritMask.empty())
266 mask = mask & inheritMask;
267 // if resulting mask is empty then return.
274 for (auto &i : mDrawableList) {
275 painter->setBrush(i->mBrush);
277 if (!mask.empty()) rle = rle & mask;
279 if (rle.empty()) continue;
281 if (!matteRle.empty()) {
282 if (matteType() == MatteType::AlphaInv) {
283 rle = rle - matteRle;
285 rle = rle & matteRle;
288 painter->drawRle(VPoint(), rle);
292 VRle LOTLayerItem::maskRle(const VRect &clipRect)
295 for (auto &i : mMasks) {
296 switch (i->maskMode()) {
297 case LOTMaskData::Mode::Add: {
298 rle = rle + i->rle();
301 case LOTMaskData::Mode::Substarct: {
302 if (rle.empty() && !clipRect.empty())
303 rle = VRle::toRle(clipRect);
304 rle = rle - i->rle();
307 case LOTMaskData::Mode::Intersect: {
308 rle = rle & i->rle();
311 case LOTMaskData::Mode::Difference: {
312 rle = rle ^ i->rle();
322 LOTLayerItem::LOTLayerItem(LOTLayerData *layerData): mLayerData(layerData)
324 if (mLayerData->mHasMask) {
325 for (auto &i : mLayerData->mMasks) {
326 mMasks.push_back(std::make_unique<LOTMaskItem>(i.get()));
331 void LOTLayerItem::updateStaticProperty()
333 if (mParentLayer) mParentLayer->updateStaticProperty();
335 mStatic = mLayerData->isStatic();
336 mStatic = mParentLayer ? (mStatic & mParentLayer->isStatic()) : mStatic;
337 mStatic = mPrecompLayer ? (mStatic & mPrecompLayer->isStatic()) : mStatic;
340 void LOTLayerItem::update(int frameNumber, const VMatrix &parentMatrix,
343 mFrameNo = frameNumber;
344 // 1. check if the layer is part of the current frame
345 if (!visible()) return;
347 // 2. calculate the parent matrix and alpha
348 VMatrix m = matrix(frameNo());
350 float alpha = parentAlpha * opacity(frameNo());
352 // 6. update the mask
354 for (auto &i : mMasks) i->update(frameNo(), m, alpha, mDirtyFlag);
357 // 3. update the dirty flag based on the change
358 if (!mCombinedMatrix.fuzzyCompare(m)) {
359 mDirtyFlag |= DirtyFlagBit::Matrix;
361 if (!vCompare(mCombinedAlpha, alpha)) {
362 mDirtyFlag |= DirtyFlagBit::Alpha;
365 mCombinedAlpha = alpha;
367 // 4. if no parent property change and layer is static then nothing to do.
368 if ((flag() & DirtyFlagBit::None) && isStatic()) return;
370 // 5. update the content of the layer
373 // 6. reset the dirty flag
374 mDirtyFlag = DirtyFlagBit::None;
377 float LOTLayerItem::opacity(int frameNo) const
379 return mLayerData->mTransform->opacity(frameNo);
382 VMatrix LOTLayerItem::matrix(int frameNo) const
385 return mLayerData->mTransform->matrix(frameNo, mLayerData->autoOrient()) *
386 mParentLayer->matrix(frameNo);
388 return mLayerData->mTransform->matrix(frameNo, mLayerData->autoOrient());
391 bool LOTLayerItem::visible() const
393 if (frameNo() >= mLayerData->inFrame() &&
394 frameNo() < mLayerData->outFrame())
400 LOTCompLayerItem::LOTCompLayerItem(LOTLayerData *layerModel)
401 : LOTLayerItem(layerModel)
403 // 1. create layer item
404 for (auto &i : mLayerData->mChildren) {
405 LOTLayerData *layerModel = static_cast<LOTLayerData *>(i.get());
406 auto layerItem = LOTCompItem::createLayerItem(layerModel);
407 if (layerItem) mLayers.push_back(std::move(layerItem));
410 // 2. update parent layer
411 for (const auto &layer : mLayers) {
412 int id = layer->parentId();
414 auto search = std::find_if(mLayers.begin(), mLayers.end(),
415 [id](const auto& val){ return val->id() == id;});
416 if (search != mLayers.end()) layer->setParentLayer((*search).get());
418 // update the precomp layer if its not the root layer.
419 if (!layerModel->root()) layer->setPrecompLayer(this);
422 // 3. keep the layer in back-to-front order.
423 // as lottie model keeps the data in front-toback-order.
424 std::reverse(mLayers.begin(), mLayers.end());
427 void LOTCompLayerItem::updateStaticProperty()
429 LOTLayerItem::updateStaticProperty();
431 for (const auto &layer : mLayers) {
432 layer->updateStaticProperty();
436 void LOTCompLayerItem::buildLayerNode()
438 LOTLayerItem::buildLayerNode();
439 if (mLayers.size() != mLayersCNode.size()) {
440 for (const auto &layer : mLayers) {
441 layer->buildLayerNode();
442 mLayersCNode.push_back(layer->layerNode());
444 layerNode()->mLayerList.ptr = mLayersCNode.data();
445 layerNode()->mLayerList.size = mLayersCNode.size();
447 for (const auto &layer : mLayers) {
448 layer->buildLayerNode();
453 void LOTCompLayerItem::render(VPainter *painter, const VRle &inheritMask, const VRle &inheritMatte, LOTLayerItem *matteSource)
457 mDrawableList.clear();
458 matteSource->renderList(mDrawableList);
459 for (auto &i : mDrawableList) {
460 matteRle = matteRle + i->rle();
463 if (matteType() == MatteType::AlphaInv ) {
464 matteRle = VRle::toRle(painter->clipBoundingRect()) - matteRle;
467 if (!inheritMatte.empty())
468 matteRle = matteRle & inheritMatte;
470 matteRle = inheritMatte;
475 mask = maskRle(painter->clipBoundingRect());
476 if (!inheritMask.empty())
477 mask = mask & inheritMask;
478 // if resulting mask is empty then return.
485 LOTLayerItem *matteLayer = nullptr;
486 for (const auto &layer : mLayers) {
487 if (!matteLayer && layer->hasMatte()) {
488 matteLayer = layer.get();
493 if (matteLayer->visible() && layer->visible())
494 matteLayer->render(painter, mask, matteRle, layer.get());
495 matteLayer = nullptr;
497 if (layer->visible())
498 layer->render(painter, mask, matteRle, nullptr);
503 void LOTCompLayerItem::updateContent()
505 for (const auto &layer : mLayers) {
506 layer->update( mLayerData->timeRemap(frameNo()) - mLayerData->startFrame(),
507 combinedMatrix(), combinedAlpha());
511 void LOTCompLayerItem::renderList(std::vector<VDrawable *> &list)
513 if (!visible()) return;
515 for (const auto &layer : mLayers) {
516 layer->renderList(list);
520 LOTSolidLayerItem::LOTSolidLayerItem(LOTLayerData *layerData)
521 : LOTLayerItem(layerData)
525 void LOTSolidLayerItem::updateContent()
528 mRenderNode = std::make_unique<LOTDrawable>();
529 mRenderNode->mType = VDrawable::Type::Fill;
530 mRenderNode->mFlag |= VDrawable::DirtyState::All;
533 if (flag() & DirtyFlagBit::Matrix) {
536 VRectF(0, 0, mLayerData->solidWidth(), mLayerData->solidHeight()));
537 path.transform(combinedMatrix());
538 mRenderNode->mFlag |= VDrawable::DirtyState::Path;
539 mRenderNode->mPath = path;
541 if (flag() & DirtyFlagBit::Alpha) {
542 LottieColor color = mLayerData->solidColor();
543 VBrush brush(color.toColor(combinedAlpha()));
544 mRenderNode->setBrush(brush);
545 mRenderNode->mFlag |= VDrawable::DirtyState::Brush;
549 void LOTSolidLayerItem::buildLayerNode()
551 LOTLayerItem::buildLayerNode();
553 mDrawableList.clear();
554 renderList(mDrawableList);
557 for (auto &i : mDrawableList) {
558 LOTDrawable *lotDrawable = static_cast<LOTDrawable *>(i);
560 mCNodeList.push_back(lotDrawable->mCNode.get());
562 layerNode()->mNodeList.ptr = mCNodeList.data();
563 layerNode()->mNodeList.size = mCNodeList.size();
566 void LOTSolidLayerItem::renderList(std::vector<VDrawable *> &list)
568 if (!visible()) return;
570 list.push_back(mRenderNode.get());
573 LOTNullLayerItem::LOTNullLayerItem(LOTLayerData *layerData)
574 : LOTLayerItem(layerData)
577 void LOTNullLayerItem::updateContent() {}
579 LOTShapeLayerItem::LOTShapeLayerItem(LOTLayerData *layerData)
580 : LOTLayerItem(layerData)
582 mRoot = std::make_unique<LOTContentGroupItem>(nullptr);
583 mRoot->addChildren(layerData);
585 std::vector<LOTPathDataItem *> list;
586 mRoot->processPaintItems(list);
588 if (layerData->hasPathOperator()) {
590 mRoot->processTrimItems(list);
594 std::unique_ptr<LOTContentItem>
595 LOTShapeLayerItem::createContentItem(LOTData *contentData)
597 switch (contentData->type()) {
598 case LOTData::Type::ShapeGroup: {
599 return std::make_unique<LOTContentGroupItem>(
600 static_cast<LOTGroupData *>(contentData));
603 case LOTData::Type::Rect: {
604 return std::make_unique<LOTRectItem>(static_cast<LOTRectData *>(contentData));
607 case LOTData::Type::Ellipse: {
608 return std::make_unique<LOTEllipseItem>(static_cast<LOTEllipseData *>(contentData));
611 case LOTData::Type::Shape: {
612 return std::make_unique<LOTShapeItem>(static_cast<LOTShapeData *>(contentData));
615 case LOTData::Type::Polystar: {
616 return std::make_unique<LOTPolystarItem>(static_cast<LOTPolystarData *>(contentData));
619 case LOTData::Type::Fill: {
620 return std::make_unique<LOTFillItem>(static_cast<LOTFillData *>(contentData));
623 case LOTData::Type::GFill: {
624 return std::make_unique<LOTGFillItem>(static_cast<LOTGFillData *>(contentData));
627 case LOTData::Type::Stroke: {
628 return std::make_unique<LOTStrokeItem>(static_cast<LOTStrokeData *>(contentData));
631 case LOTData::Type::GStroke: {
632 return std::make_unique<LOTGStrokeItem>(static_cast<LOTGStrokeData *>(contentData));
635 case LOTData::Type::Repeater: {
636 return std::make_unique<LOTRepeaterItem>(static_cast<LOTRepeaterData *>(contentData));
639 case LOTData::Type::Trim: {
640 return std::make_unique<LOTTrimItem>(static_cast<LOTTrimData *>(contentData));
649 void LOTShapeLayerItem::updateContent()
651 mRoot->update(frameNo(), combinedMatrix(), combinedAlpha(), flag());
653 if (mLayerData->hasPathOperator()) {
658 void LOTShapeLayerItem::buildLayerNode()
660 LOTLayerItem::buildLayerNode();
662 mDrawableList.clear();
663 renderList(mDrawableList);
666 for (auto &i : mDrawableList) {
667 LOTDrawable *lotDrawable = static_cast<LOTDrawable *>(i);
669 mCNodeList.push_back(lotDrawable->mCNode.get());
671 layerNode()->mNodeList.ptr = mCNodeList.data();
672 layerNode()->mNodeList.size = mCNodeList.size();
675 void LOTShapeLayerItem::renderList(std::vector<VDrawable *> &list)
677 if (!visible()) return;
678 mRoot->renderList(list);
681 LOTContentGroupItem::LOTContentGroupItem(LOTGroupData *data) : mData(data)
686 void LOTContentGroupItem::addChildren(LOTGroupData *data)
690 for (auto &i : data->mChildren) {
691 auto content = LOTShapeLayerItem::createContentItem(i.get());
693 content->setParent(this);
694 mContents.push_back(std::move(content));
698 // keep the content in back-to-front order.
699 std::reverse(mContents.begin(), mContents.end());
702 void LOTContentGroupItem::update(int frameNo, const VMatrix &parentMatrix,
703 float parentAlpha, const DirtyFlag &flag)
705 VMatrix m = parentMatrix;
706 float alpha = parentAlpha;
707 DirtyFlag newFlag = flag;
709 if (mData && mData->mTransform) {
710 // update the matrix and the flag
711 if ((flag & DirtyFlagBit::Matrix) ||
712 !mData->mTransform->staticMatrix()) {
713 newFlag |= DirtyFlagBit::Matrix;
715 m = mData->mTransform->matrix(frameNo);
717 alpha *= mData->mTransform->opacity(frameNo);
719 if (!vCompare(alpha, parentAlpha)) {
720 newFlag |= DirtyFlagBit::Alpha;
726 for (const auto &content : mContents) {
727 content->update(frameNo, m, alpha, newFlag);
731 void LOTContentGroupItem::applyTrim()
733 for (auto i = mContents.rbegin(); i != mContents.rend(); ++i) {
734 auto content = (*i).get();
735 if (auto trim = dynamic_cast<LOTTrimItem *>(content)) {
737 } else if (auto group = dynamic_cast<LOTContentGroupItem *>(content)) {
743 void LOTContentGroupItem::renderList(std::vector<VDrawable *> &list)
745 for (const auto &content : mContents) {
746 content->renderList(list);
750 void LOTContentGroupItem::processPaintItems(
751 std::vector<LOTPathDataItem *> &list)
753 int curOpCount = list.size();
754 for (auto i = mContents.rbegin(); i != mContents.rend(); ++i) {
755 auto content = (*i).get();
756 if (auto pathNode = dynamic_cast<LOTPathDataItem *>(content)) {
757 // add it to the list
758 list.push_back(pathNode);
759 } else if (auto paintNode = dynamic_cast<LOTPaintDataItem *>(content)) {
760 // the node is a paint data node update the path list of the paint item.
761 paintNode->addPathItems(list, curOpCount);
762 } else if (auto groupNode =
763 dynamic_cast<LOTContentGroupItem *>(content)) {
764 // update the groups node with current list
765 groupNode->processPaintItems(list);
770 void LOTContentGroupItem::processTrimItems(
771 std::vector<LOTPathDataItem *> &list)
773 int curOpCount = list.size();
774 for (auto i = mContents.rbegin(); i != mContents.rend(); ++i) {
775 auto content = (*i).get();
776 if (auto pathNode = dynamic_cast<LOTPathDataItem *>(content)) {
777 // add it to the list
778 list.push_back(pathNode);
779 } else if (auto trimNode = dynamic_cast<LOTTrimItem *>(content)) {
780 // the node is a paint data node update the path list of the paint item.
781 trimNode->addPathItems(list, curOpCount);
782 } else if (auto groupNode =
783 dynamic_cast<LOTContentGroupItem *>(content)) {
784 // update the groups node with current list
785 groupNode->processTrimItems(list);
790 void LOTPathDataItem::update(int frameNo, const VMatrix &,
791 float, const DirtyFlag &flag)
793 mPathChanged = false;
795 // 1. update the local path if needed
796 if (hasChanged(frameNo)) {
797 updatePath(mLocalPath, frameNo);
804 // 3. compute the final path with parentMatrix
805 if ((flag & DirtyFlagBit::Matrix) || mPathChanged) {
810 const VPath & LOTPathDataItem::finalPath()
812 if (mPathChanged || mNeedUpdate) {
813 mFinalPath.clone(mTemp);
814 mFinalPath.transform(static_cast<LOTContentGroupItem *>(parent())->matrix());
819 LOTRectItem::LOTRectItem(LOTRectData *data)
820 : LOTPathDataItem(data->isStatic()), mData(data)
824 void LOTRectItem::updatePath(VPath& path, int frameNo)
826 VPointF pos = mData->mPos.value(frameNo);
827 VPointF size = mData->mSize.value(frameNo);
828 float roundness = mData->mRound.value(frameNo);
829 VRectF r(pos.x() - size.x() / 2, pos.y() - size.y() / 2, size.x(),
833 path.addRoundRect(r, roundness, mData->direction());
836 LOTEllipseItem::LOTEllipseItem(LOTEllipseData *data)
837 : LOTPathDataItem(data->isStatic()), mData(data)
841 void LOTEllipseItem::updatePath(VPath& path, int frameNo)
843 VPointF pos = mData->mPos.value(frameNo);
844 VPointF size = mData->mSize.value(frameNo);
845 VRectF r(pos.x() - size.x() / 2, pos.y() - size.y() / 2, size.x(),
849 path.addOval(r, mData->direction());
852 LOTShapeItem::LOTShapeItem(LOTShapeData *data)
853 : LOTPathDataItem(data->isStatic()), mData(data)
857 void LOTShapeItem::updatePath(VPath& path, int frameNo)
859 mData->mShape.value(frameNo).toPath(path);
862 LOTPolystarItem::LOTPolystarItem(LOTPolystarData *data)
863 : LOTPathDataItem(data->isStatic()), mData(data)
867 void LOTPolystarItem::updatePath(VPath& path, int frameNo)
869 VPointF pos = mData->mPos.value(frameNo);
870 float points = mData->mPointCount.value(frameNo);
871 float innerRadius = mData->mInnerRadius.value(frameNo);
872 float outerRadius = mData->mOuterRadius.value(frameNo);
873 float innerRoundness = mData->mInnerRoundness.value(frameNo);
874 float outerRoundness = mData->mOuterRoundness.value(frameNo);
875 float rotation = mData->mRotation.value(frameNo);
880 if (mData->mType == LOTPolystarData::PolyType::Star) {
881 path.addPolystar(points, innerRadius, outerRadius, innerRoundness,
882 outerRoundness, 0.0, 0.0, 0.0, mData->direction());
884 path.addPolygon(points, outerRadius, outerRoundness, 0.0, 0.0, 0.0,
888 m.translate(pos.x(), pos.y()).rotate(rotation);
894 * PaintData Node handling
897 LOTPaintDataItem::LOTPaintDataItem(bool staticContent):mDrawable(std::make_unique<LOTDrawable>()),
898 mStaticContent(staticContent){}
900 void LOTPaintDataItem::update(int frameNo, const VMatrix &parentMatrix,
901 float parentAlpha, const DirtyFlag &flag)
903 mRenderNodeUpdate = true;
904 mParentAlpha = parentAlpha;
908 updateContent(frameNo);
911 void LOTPaintDataItem::updateRenderNode()
914 for (auto &i : mPathItems) {
924 for (auto &i : mPathItems) {
925 mPath.addPath(i->finalPath());
927 mDrawable->setPath(mPath);
929 if (mDrawable->mFlag & VDrawable::DirtyState::Path)
930 mDrawable->mPath = mPath;
934 void LOTPaintDataItem::renderList(std::vector<VDrawable *> &list)
936 if (mRenderNodeUpdate) {
938 LOTPaintDataItem::updateRenderNode();
939 mRenderNodeUpdate = false;
941 list.push_back(mDrawable.get());
945 void LOTPaintDataItem::addPathItems(std::vector<LOTPathDataItem *> &list, int startOffset)
947 std::copy(list.begin() + startOffset, list.end(), back_inserter(mPathItems));
951 LOTFillItem::LOTFillItem(LOTFillData *data)
952 : LOTPaintDataItem(data->isStatic()), mData(data)
956 void LOTFillItem::updateContent(int frameNo)
958 LottieColor c = mData->mColor.value(frameNo);
959 float opacity = mData->opacity(frameNo);
960 mColor = c.toColor(opacity);
961 mFillRule = mData->fillRule();
964 void LOTFillItem::updateRenderNode()
966 VColor color = mColor;
968 color.setAlpha(color.a * parentAlpha());
970 mDrawable->setBrush(brush);
971 mDrawable->setFillRule(mFillRule);
974 LOTGFillItem::LOTGFillItem(LOTGFillData *data)
975 : LOTPaintDataItem(data->isStatic()), mData(data)
979 void LOTGFillItem::updateContent(int frameNo)
981 mData->update(mGradient, frameNo);
982 mGradient->mMatrix = static_cast<LOTContentGroupItem *>(parent())->matrix();
983 mFillRule = mData->fillRule();
986 void LOTGFillItem::updateRenderNode()
988 mGradient->setAlpha(parentAlpha());
989 mDrawable->setBrush(VBrush(mGradient.get()));
990 mDrawable->setFillRule(mFillRule);
993 LOTStrokeItem::LOTStrokeItem(LOTStrokeData *data)
994 : LOTPaintDataItem(data->isStatic()), mData(data)
999 void LOTStrokeItem::updateContent(int frameNo)
1001 LottieColor c = mData->mColor.value(frameNo);
1002 float opacity = mData->opacity(frameNo);
1003 mColor = c.toColor(opacity);
1004 mCap = mData->capStyle();
1005 mJoin = mData->joinStyle();
1006 mMiterLimit = mData->meterLimit();
1007 mWidth = mData->width(frameNo);
1008 if (mData->hasDashInfo()) {
1009 mDashArraySize = mData->getDashInfo(frameNo, mDashArray);
1013 static float getScale(const VMatrix &matrix)
1015 constexpr float SQRT_2 = 1.41421;
1017 VPointF p2(SQRT_2, SQRT_2);
1018 p1 = matrix.map(p1);
1019 p2 = matrix.map(p2);
1020 VPointF final = p2 - p1;
1022 return std::sqrt(final.x() * final.x() + final.y() * final.y()) / 2.0;
1025 void LOTStrokeItem::updateRenderNode()
1027 VColor color = mColor;
1029 color.setAlpha(color.a * parentAlpha());
1030 VBrush brush(color);
1031 mDrawable->setBrush(brush);
1032 float scale = getScale(static_cast<LOTContentGroupItem *>(parent())->matrix());
1033 mDrawable->setStrokeInfo(mCap, mJoin, mMiterLimit,
1035 if (mDashArraySize) {
1036 for (int i = 0 ; i < mDashArraySize ; i++)
1037 mDashArray[i] *= scale;
1039 /* AE draw the dash even if dash value is 0 */
1040 if (vCompare(mDashArray[0], 0.0f)) mDashArray[0]= 0.1;
1042 mDrawable->setDashInfo(mDashArray, mDashArraySize);
1046 LOTGStrokeItem::LOTGStrokeItem(LOTGStrokeData *data)
1047 : LOTPaintDataItem(data->isStatic()), mData(data)
1052 void LOTGStrokeItem::updateContent(int frameNo)
1054 mData->update(mGradient, frameNo);
1055 mGradient->mMatrix = static_cast<LOTContentGroupItem *>(parent())->matrix();
1056 mCap = mData->capStyle();
1057 mJoin = mData->joinStyle();
1058 mMiterLimit = mData->meterLimit();
1059 mWidth = mData->width(frameNo);
1060 if (mData->hasDashInfo()) {
1061 mDashArraySize = mData->getDashInfo(frameNo, mDashArray);
1065 void LOTGStrokeItem::updateRenderNode()
1067 float scale = getScale(mGradient->mMatrix);
1068 mGradient->setAlpha(parentAlpha());
1069 mDrawable->setBrush(VBrush(mGradient.get()));
1070 mDrawable->setStrokeInfo(mCap, mJoin, mMiterLimit,
1072 if (mDashArraySize) {
1073 for (int i = 0 ; i < mDashArraySize ; i++)
1074 mDashArray[i] *= scale;
1075 mDrawable->setDashInfo(mDashArray, mDashArraySize);
1079 LOTTrimItem::LOTTrimItem(LOTTrimData *data) : mData(data) {}
1081 void LOTTrimItem::update(int frameNo, const VMatrix &/*parentMatrix*/,
1082 float /*parentAlpha*/, const DirtyFlag &/*flag*/)
1086 if (mCache.mFrameNo == frameNo) return;
1088 LOTTrimData::Segment segment = mData->segment(frameNo);
1090 if (!(vCompare(mCache.mSegment.start, segment.start) &&
1091 vCompare(mCache.mSegment.end, segment.end))) {
1093 mCache.mSegment = segment;
1095 mCache.mFrameNo = frameNo;
1098 void LOTTrimItem::update()
1100 // when both path and trim are not dirty
1101 if (!(mDirty || pathDirty())) return;
1103 if (vCompare(mCache.mSegment.start, mCache.mSegment.end)) {
1104 for (auto &i : mPathItems) {
1105 i->updatePath(VPath());
1110 if (vCompare(std::fabs(mCache.mSegment.start - mCache.mSegment.end) , 1)) {
1111 for (auto &i : mPathItems) {
1112 i->updatePath(i->localPath());
1117 if (mData->type() == LOTTrimData::TrimType::Simultaneously) {
1118 for (auto &i : mPathItems) {
1120 pm.setStart(mCache.mSegment.start);
1121 pm.setEnd(mCache.mSegment.end);
1122 i->updatePath(pm.trim(i->localPath()));
1124 } else { // LOTTrimData::TrimType::Individually
1125 float totalLength = 0.0;
1126 for (auto &i : mPathItems) {
1127 totalLength += i->localPath().length();
1129 float start = totalLength * mCache.mSegment.start;
1130 float end = totalLength * mCache.mSegment.end;
1134 for (auto &i : mPathItems) {
1136 // update with empty path.
1137 i->updatePath(VPath());
1140 float len = i->localPath().length();
1142 if (curLen < start && curLen + len < start) {
1144 // update with empty path.
1145 i->updatePath(VPath());
1147 } else if (start <= curLen && end >= curLen + len) {
1152 float local_start = start > curLen ? start - curLen : 0;
1154 float local_end = curLen + len < end ? len : end - curLen;
1157 pm.setStart(local_start);
1158 pm.setEnd(local_end);
1159 VPath p = pm.trim(i->localPath());
1170 void LOTTrimItem::addPathItems(std::vector<LOTPathDataItem *> &list, int startOffset)
1172 std::copy(list.begin() + startOffset, list.end(), back_inserter(mPathItems));
1176 LOTRepeaterItem::LOTRepeaterItem(LOTRepeaterData *data) : mData(data)
1178 assert(mData->mChildren.size() == 1);
1179 LOTGroupData *root = reinterpret_cast<LOTGroupData *>(mData->mChildren[0].get());
1182 for (int i= 0; i < mData->copies(0); i++) {
1183 auto content = std::make_unique<LOTContentGroupItem>(static_cast<LOTGroupData *>(root));
1184 content->setParent(this);
1185 mContents.push_back(std::move(content));
1189 void LOTRepeaterItem::update(int frameNo, const VMatrix &parentMatrix, float parentAlpha, const DirtyFlag &flag)
1192 DirtyFlag newFlag = flag;
1194 if (mData->hasMtrixChange(frameNo)) {
1195 newFlag |= DirtyFlagBit::Matrix;
1198 float multiplier = mData->offset(frameNo);
1199 float startOpacity = mData->mTransform->startOpacity(frameNo);
1200 float endOpacity = mData->mTransform->endOpacity(frameNo);
1202 float copies = mData->copies(frameNo);
1203 if (!vCompare(copies, 1)) copies -=1;
1205 newFlag |= DirtyFlagBit::Alpha;
1206 for (const auto &content : mContents) {
1207 float newAlpha = parentAlpha * lerp(startOpacity, endOpacity, index / copies);
1208 VMatrix result = mData->mTransform->matrixForRepeater(frameNo, multiplier) * parentMatrix;
1209 content->update(frameNo, result, newAlpha, newFlag);
1215 static void updateGStops(LOTNode *n, const VGradient *grad)
1217 if (grad->mStops.size() != n->mGradient.stopCount) {
1218 if (n->mGradient.stopCount)
1219 free(n->mGradient.stopPtr);
1220 n->mGradient.stopCount = grad->mStops.size();
1221 n->mGradient.stopPtr = (LOTGradientStop *) malloc(n->mGradient.stopCount * sizeof(LOTGradientStop));
1224 LOTGradientStop *ptr = n->mGradient.stopPtr;
1225 for (const auto &i : grad->mStops) {
1227 ptr->a = i.second.alpha() * grad->alpha();
1228 ptr->r = i.second.red();
1229 ptr->g = i.second.green();
1230 ptr->b = i.second.blue();
1236 void LOTDrawable::sync()
1239 mCNode = std::make_unique<LOTNode>();
1240 mCNode->mGradient.stopPtr = nullptr;
1241 mCNode->mGradient.stopCount = 0;
1244 mCNode->mFlag = ChangeFlagNone;
1245 if (mFlag & DirtyState::None) return;
1247 if (mFlag & DirtyState::Path) {
1248 if (mStroke.mDash.size()) {
1249 VDasher dasher(mStroke.mDash.data(), mStroke.mDash.size());
1250 mPath = dasher.dashed(mPath);
1252 const std::vector<VPath::Element> &elm = mPath.elements();
1253 const std::vector<VPointF> & pts = mPath.points();
1254 const float *ptPtr = reinterpret_cast<const float *>(pts.data());
1255 const char * elmPtr = reinterpret_cast<const char *>(elm.data());
1256 mCNode->mPath.elmPtr = elmPtr;
1257 mCNode->mPath.elmCount = elm.size();
1258 mCNode->mPath.ptPtr = ptPtr;
1259 mCNode->mPath.ptCount = 2 * pts.size();
1260 mCNode->mFlag |= ChangeFlagPath;
1263 if (mStroke.enable) {
1264 mCNode->mStroke.width = mStroke.width;
1265 mCNode->mStroke.meterLimit = mStroke.meterLimit;
1266 mCNode->mStroke.enable = 1;
1268 switch (mStroke.cap) {
1269 case CapStyle::Flat:
1270 mCNode->mStroke.cap = LOTCapStyle::CapFlat;
1272 case CapStyle::Square:
1273 mCNode->mStroke.cap = LOTCapStyle::CapSquare;
1275 case CapStyle::Round:
1276 mCNode->mStroke.cap = LOTCapStyle::CapRound;
1279 mCNode->mStroke.cap = LOTCapStyle::CapFlat;
1283 switch (mStroke.join) {
1284 case JoinStyle::Miter:
1285 mCNode->mStroke.join = LOTJoinStyle::JoinMiter;
1287 case JoinStyle::Bevel:
1288 mCNode->mStroke.join = LOTJoinStyle::JoinBevel;
1290 case JoinStyle::Round:
1291 mCNode->mStroke.join = LOTJoinStyle::JoinRound;
1294 mCNode->mStroke.join = LOTJoinStyle::JoinMiter;
1298 mCNode->mStroke.enable = 0;
1301 switch (mFillRule) {
1302 case FillRule::EvenOdd:
1303 mCNode->mFillRule = LOTFillRule::FillEvenOdd;
1306 mCNode->mFillRule = LOTFillRule::FillWinding;
1310 switch (mBrush.type()) {
1311 case VBrush::Type::Solid:
1312 mCNode->mBrushType = LOTBrushType::BrushSolid;
1313 mCNode->mColor.r = mBrush.mColor.r;
1314 mCNode->mColor.g = mBrush.mColor.g;
1315 mCNode->mColor.b = mBrush.mColor.b;
1316 mCNode->mColor.a = mBrush.mColor.a;
1318 case VBrush::Type::LinearGradient: {
1319 mCNode->mBrushType = LOTBrushType::BrushGradient;
1320 mCNode->mGradient.type = LOTGradientType::GradientLinear;
1321 VPointF s = mBrush.mGradient->mMatrix.map({mBrush.mGradient->linear.x1,
1322 mBrush.mGradient->linear.y1});
1323 VPointF e = mBrush.mGradient->mMatrix.map({mBrush.mGradient->linear.x2,
1324 mBrush.mGradient->linear.y2});
1325 mCNode->mGradient.start.x = s.x();
1326 mCNode->mGradient.start.y = s.y();
1327 mCNode->mGradient.end.x = e.x();
1328 mCNode->mGradient.end.y = e.y();
1329 updateGStops(mCNode.get(), mBrush.mGradient);
1332 case VBrush::Type::RadialGradient: {
1333 mCNode->mBrushType = LOTBrushType::BrushGradient;
1334 mCNode->mGradient.type = LOTGradientType::GradientRadial;
1335 VPointF c = mBrush.mGradient->mMatrix.map({mBrush.mGradient->radial.cx,
1336 mBrush.mGradient->radial.cy});
1337 VPointF f = mBrush.mGradient->mMatrix.map({mBrush.mGradient->radial.fx,
1338 mBrush.mGradient->radial.fy});
1339 mCNode->mGradient.center.x = c.x();
1340 mCNode->mGradient.center.y = c.y();
1341 mCNode->mGradient.focal.x = f.x();
1342 mCNode->mGradient.focal.y = f.y();
1344 float scale = getScale(mBrush.mGradient->mMatrix);
1345 mCNode->mGradient.cradius = mBrush.mGradient->radial.cradius * scale;
1346 mCNode->mGradient.fradius = mBrush.mGradient->radial.fradius * scale;
1347 updateGStops(mCNode.get(), mBrush.mGradient);