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lottie: refactor pathChange computation without keeping cache.

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Change-Id: I14ed8b36e33dd5d4a20b632b26d329fde68ae55b
This commit is contained in:
subhransu mohanty
2018-11-27 14:44:13 +09:00
parent 79283c28b1
commit 27a774b0e5
2 changed files with 27 additions and 111 deletions
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4
src/lottie/lottieitem.cpp
View File

@@ -794,7 +794,6 @@ void LOTRectItem::updatePath(VPath& path, int frameNo)
path.reset();
path.addRoundRect(r, roundness, mData->direction());
updateCache(frameNo, pos, size, roundness);
}
LOTEllipseItem::LOTEllipseItem(LOTEllipseData *data)
@@ -811,7 +810,6 @@ void LOTEllipseItem::updatePath(VPath& path, int frameNo)
path.reset();
path.addOval(r, mData->direction());
updateCache(frameNo, pos, size);
}
LOTShapeItem::LOTShapeItem(LOTShapeData *data)
@@ -853,8 +851,6 @@ void LOTPolystarItem::updatePath(VPath& path, int frameNo)
m.translate(pos.x(), pos.y()).rotate(rotation);
m.rotate(rotation);
path.transform(m);
updateCache(frameNo, pos, points, innerRadius, outerRadius,
innerRoundness, outerRoundness, rotation);
}
/*

134
src/lottie/lottieitem.h
View File

@@ -222,11 +222,20 @@ public:
bool staticPath() const { return mStaticPath; }
protected:
virtual void updatePath(VPath& path, int frameNo) = 0;
virtual bool hasChanged(int frameNo) = 0;
virtual bool hasChanged(int prevFrame, int curFrame) = 0;
private:
bool hasChanged(int frameNo) {
int prevFrame = mFrameNo;
mFrameNo = frameNo;
if (prevFrame == -1) return true;
if (mStaticPath ||
(prevFrame == frameNo)) return false;
return hasChanged(prevFrame, frameNo);
}
VPath mLocalPath;
VPath mTemp;
VPath mFinalPath;
int mFrameNo{-1};
bool mPathChanged{true};
bool mNeedUpdate{true};
bool mStaticPath;
@@ -240,34 +249,10 @@ protected:
void updatePath(VPath& path, int frameNo) final;
LOTRectData *mData;
struct Cache {
int mFrameNo{-1};
float mRoundness;
VPointF mPos;
VPointF mSize;
};
Cache mCache;
void updateCache(int frameNo, VPointF pos, VPointF size, float roundness) {
mCache.mFrameNo = frameNo;
mCache.mPos = pos;
mCache.mSize = size;
mCache.mRoundness = roundness;
}
bool hasChanged(int frameNo) final {
if (mCache.mFrameNo != -1 && staticPath()) return false;
if (mCache.mFrameNo == frameNo) return false;
VPointF pos = mData->mPos.value(frameNo);
VPointF size = mData->mSize.value(frameNo);
float roundness = mData->mRound.value(frameNo);
if (vCompare(mCache.mPos.x(), pos.x()) && vCompare(mCache.mPos.y(), pos.y()) &&
vCompare(mCache.mSize.x(), size.x()) && vCompare(mCache.mSize.y(), size.y()) &&
vCompare(mCache.mRoundness, roundness))
return false;
return true;
bool hasChanged(int prevFrame, int curFrame) final {
return (mData->mPos.changed(prevFrame, curFrame) ||
mData->mSize.changed(prevFrame, curFrame) ||
mData->mRound.changed(prevFrame, curFrame)) ? true : false;
}
};
@@ -278,31 +263,9 @@ public:
private:
void updatePath(VPath& path, int frameNo) final;
LOTEllipseData *mData;
struct Cache {
int mFrameNo{-1};
VPointF mPos;
VPointF mSize;
};
Cache mCache;
void updateCache(int frameNo, VPointF pos, VPointF size) {
mCache.mFrameNo = frameNo;
mCache.mPos = pos;
mCache.mSize = size;
}
bool hasChanged(int frameNo) final {
if (mCache.mFrameNo != -1 && staticPath()) return false;
if (mCache.mFrameNo == frameNo) return false;
VPointF pos = mData->mPos.value(frameNo);
VPointF size = mData->mSize.value(frameNo);
if (vCompare(mCache.mPos.x(), pos.x()) && vCompare(mCache.mPos.y(), pos.y()) &&
vCompare(mCache.mSize.x(), size.x()) && vCompare(mCache.mSize.y(), size.y()))
return false;
return true;
bool hasChanged(int prevFrame, int curFrame) final {
return (mData->mPos.changed(prevFrame, curFrame) ||
mData->mSize.changed(prevFrame, curFrame)) ? true : false;
}
};
@@ -311,19 +274,10 @@ class LOTShapeItem: public LOTPathDataItem
public:
LOTShapeItem(LOTShapeData *data);
private:
struct Cache {
int mFrameNo{-1};
};
Cache mCache;
void updatePath(VPath& path, int frameNo) final;
LOTShapeData *mData;
bool hasChanged(int frameNo) final {
int prevFrame = mCache.mFrameNo;
mCache.mFrameNo = frameNo;
if (prevFrame == -1) return true;
if (prevFrame == frameNo) return false;
return mData->mShape.changed(prevFrame, frameNo);
bool hasChanged(int prevFrame, int curFrame) final {
return mData->mShape.changed(prevFrame, curFrame);
}
};
@@ -335,48 +289,14 @@ private:
void updatePath(VPath& path, int frameNo) final;
LOTPolystarData *mData;
struct Cache {
int mFrameNo{-1};
VPointF mPos;
float mPoints{0};
float mInnerRadius{0};
float mOuterRadius{0};
float mInnerRoundness{0};
float mOuterRoundness{0};
float mRotation{0};
};
Cache mCache;
void updateCache(int frameNo, VPointF pos, float points, float innerRadius, float outerRadius,
float innerRoundness, float outerRoundness, float rotation) {
mCache.mFrameNo = frameNo;
mCache.mPos = pos;
mCache.mPoints = points;
mCache.mInnerRadius = innerRadius;
mCache.mOuterRadius = outerRadius;
mCache.mInnerRoundness = innerRoundness;
mCache.mOuterRoundness = outerRoundness;
mCache.mRotation = rotation;
}
bool hasChanged(int frameNo) final {
if (mCache.mFrameNo != -1 && staticPath()) return false;
if (mCache.mFrameNo == frameNo) return false;
VPointF pos = mData->mPos.value(frameNo);
float points = mData->mPointCount.value(frameNo);
float innerRadius = mData->mInnerRadius.value(frameNo);
float outerRadius = mData->mOuterRadius.value(frameNo);
float innerRoundness = mData->mInnerRoundness.value(frameNo);
float outerRoundness = mData->mOuterRoundness.value(frameNo);
float rotation = mData->mRotation.value(frameNo);
if (vCompare(mCache.mPos.x(), pos.x()) && vCompare(mCache.mPos.y(), pos.y()) &&
vCompare(mCache.mPoints, points) && vCompare(mCache.mRotation, rotation) &&
vCompare(mCache.mInnerRadius, innerRadius) && vCompare(mCache.mOuterRadius, outerRadius) &&
vCompare(mCache.mInnerRoundness, innerRoundness) && vCompare(mCache.mOuterRoundness, outerRoundness))
return false;
return true;
bool hasChanged(int prevFrame, int curFrame) final {
return (mData->mPos.changed(prevFrame, curFrame) ||
mData->mPointCount.changed(prevFrame, curFrame) ||
mData->mInnerRadius.changed(prevFrame, curFrame) ||
mData->mOuterRadius.changed(prevFrame, curFrame) ||
mData->mInnerRoundness.changed(prevFrame, curFrame) ||
mData->mOuterRoundness.changed(prevFrame, curFrame) ||
mData->mRotation.changed(prevFrame, curFrame)) ? true : false;
}
};