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Unified Diff: Source/core/svg/SVGPathBlender.cpp

Issue 1023993002: Rework the SVGPathSource interface (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Blender fixups. Created 5 years, 9 months ago
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Index: Source/core/svg/SVGPathBlender.cpp
diff --git a/Source/core/svg/SVGPathBlender.cpp b/Source/core/svg/SVGPathBlender.cpp
index 0ad27f1e72062a9e3e2b6128a20ef761d01ea60c..64a9374cfdfc6178487592df5b36b170600068f1 100644
--- a/Source/core/svg/SVGPathBlender.cpp
+++ b/Source/core/svg/SVGPathBlender.cpp
@@ -113,174 +113,101 @@ FloatPoint SVGPathBlender::blendAnimatedFloatPoint(const FloatPoint& fromPoint,
return animatedPoint;
}
-bool SVGPathBlender::blendMoveToSegment()
+void SVGPathBlender::blendMoveToSegment(const PathSegmentData& fromSeg, const PathSegmentData& toSeg)
{
- FloatPoint fromTargetPoint;
- FloatPoint toTargetPoint;
- if ((m_fromSource->hasMoreData() && !m_fromSource->parseMoveToSegment(fromTargetPoint))
- || !m_toSource->parseMoveToSegment(toTargetPoint))
- return false;
-
- m_consumer->moveTo(blendAnimatedFloatPoint(fromTargetPoint, toTargetPoint), m_isInFirstHalfOfAnimation ? m_fromMode : m_toMode);
- m_fromCurrentPoint = m_fromMode == AbsoluteCoordinates ? fromTargetPoint : m_fromCurrentPoint + fromTargetPoint;
- m_toCurrentPoint = m_toMode == AbsoluteCoordinates ? toTargetPoint : m_toCurrentPoint + toTargetPoint;
- return true;
+ m_consumer->moveTo(blendAnimatedFloatPoint(fromSeg.targetPoint, toSeg.targetPoint), m_isInFirstHalfOfAnimation ? m_fromMode : m_toMode);
+ m_fromCurrentPoint = m_fromMode == AbsoluteCoordinates ? fromSeg.targetPoint : m_fromCurrentPoint + fromSeg.targetPoint;
+ m_toCurrentPoint = m_toMode == AbsoluteCoordinates ? toSeg.targetPoint : m_toCurrentPoint + toSeg.targetPoint;
}
-bool SVGPathBlender::blendLineToSegment()
+void SVGPathBlender::blendLineToSegment(const PathSegmentData& fromSeg, const PathSegmentData& toSeg)
{
- FloatPoint fromTargetPoint;
- FloatPoint toTargetPoint;
- if ((m_fromSource->hasMoreData() && !m_fromSource->parseLineToSegment(fromTargetPoint))
- || !m_toSource->parseLineToSegment(toTargetPoint))
- return false;
-
- m_consumer->lineTo(blendAnimatedFloatPoint(fromTargetPoint, toTargetPoint), m_isInFirstHalfOfAnimation ? m_fromMode : m_toMode);
- m_fromCurrentPoint = m_fromMode == AbsoluteCoordinates ? fromTargetPoint : m_fromCurrentPoint + fromTargetPoint;
- m_toCurrentPoint = m_toMode == AbsoluteCoordinates ? toTargetPoint : m_toCurrentPoint + toTargetPoint;
- return true;
+ m_consumer->lineTo(blendAnimatedFloatPoint(fromSeg.targetPoint, toSeg.targetPoint), m_isInFirstHalfOfAnimation ? m_fromMode : m_toMode);
+ m_fromCurrentPoint = m_fromMode == AbsoluteCoordinates ? fromSeg.targetPoint : m_fromCurrentPoint + fromSeg.targetPoint;
+ m_toCurrentPoint = m_toMode == AbsoluteCoordinates ? toSeg.targetPoint : m_toCurrentPoint + toSeg.targetPoint;
}
-bool SVGPathBlender::blendLineToHorizontalSegment()
+void SVGPathBlender::blendLineToHorizontalSegment(const PathSegmentData& fromSeg, const PathSegmentData& toSeg)
{
- float fromX = 0;
- float toX = 0;
- if ((m_fromSource->hasMoreData() && !m_fromSource->parseLineToHorizontalSegment(fromX))
- || !m_toSource->parseLineToHorizontalSegment(toX))
- return false;
-
+ float fromX = fromSeg.targetPoint.x();
+ float toX = toSeg.targetPoint.x();
m_consumer->lineToHorizontal(blendAnimatedDimensonalFloat(fromX, toX, BlendHorizontal), m_isInFirstHalfOfAnimation ? m_fromMode : m_toMode);
m_fromCurrentPoint.setX(m_fromMode == AbsoluteCoordinates ? fromX : m_fromCurrentPoint.x() + fromX);
m_toCurrentPoint.setX(m_toMode == AbsoluteCoordinates ? toX : m_toCurrentPoint.x() + toX);
- return true;
}
-bool SVGPathBlender::blendLineToVerticalSegment()
+void SVGPathBlender::blendLineToVerticalSegment(const PathSegmentData& fromSeg, const PathSegmentData& toSeg)
{
- float fromY = 0;
- float toY = 0;
- if ((m_fromSource->hasMoreData() && !m_fromSource->parseLineToVerticalSegment(fromY))
- || !m_toSource->parseLineToVerticalSegment(toY))
- return false;
-
+ float fromY = fromSeg.targetPoint.y();
+ float toY = toSeg.targetPoint.y();
m_consumer->lineToVertical(blendAnimatedDimensonalFloat(fromY, toY, BlendVertical), m_isInFirstHalfOfAnimation ? m_fromMode : m_toMode);
m_fromCurrentPoint.setY(m_fromMode == AbsoluteCoordinates ? fromY : m_fromCurrentPoint.y() + fromY);
m_toCurrentPoint.setY(m_toMode == AbsoluteCoordinates ? toY : m_toCurrentPoint.y() + toY);
- return true;
}
-bool SVGPathBlender::blendCurveToCubicSegment()
+void SVGPathBlender::blendCurveToCubicSegment(const PathSegmentData& fromSeg, const PathSegmentData& toSeg)
{
- FloatPoint fromTargetPoint;
- FloatPoint fromPoint1;
- FloatPoint fromPoint2;
- FloatPoint toTargetPoint;
- FloatPoint toPoint1;
- FloatPoint toPoint2;
- if ((m_fromSource->hasMoreData() && !m_fromSource->parseCurveToCubicSegment(fromPoint1, fromPoint2, fromTargetPoint))
- || !m_toSource->parseCurveToCubicSegment(toPoint1, toPoint2, toTargetPoint))
- return false;
-
- m_consumer->curveToCubic(blendAnimatedFloatPoint(fromPoint1, toPoint1),
- blendAnimatedFloatPoint(fromPoint2, toPoint2),
- blendAnimatedFloatPoint(fromTargetPoint, toTargetPoint),
- m_isInFirstHalfOfAnimation ? m_fromMode : m_toMode);
- m_fromCurrentPoint = m_fromMode == AbsoluteCoordinates ? fromTargetPoint : m_fromCurrentPoint + fromTargetPoint;
- m_toCurrentPoint = m_toMode == AbsoluteCoordinates ? toTargetPoint : m_toCurrentPoint + toTargetPoint;
- return true;
+ m_consumer->curveToCubic(
+ blendAnimatedFloatPoint(fromSeg.point1, toSeg.point1),
+ blendAnimatedFloatPoint(fromSeg.point2, toSeg.point2),
+ blendAnimatedFloatPoint(fromSeg.targetPoint, toSeg.targetPoint),
+ m_isInFirstHalfOfAnimation ? m_fromMode : m_toMode);
+ m_fromCurrentPoint = m_fromMode == AbsoluteCoordinates ? fromSeg.targetPoint : m_fromCurrentPoint + fromSeg.targetPoint;
+ m_toCurrentPoint = m_toMode == AbsoluteCoordinates ? toSeg.targetPoint : m_toCurrentPoint + toSeg.targetPoint;
}
-bool SVGPathBlender::blendCurveToCubicSmoothSegment()
+void SVGPathBlender::blendCurveToCubicSmoothSegment(const PathSegmentData& fromSeg, const PathSegmentData& toSeg)
{
- FloatPoint fromTargetPoint;
- FloatPoint fromPoint2;
- FloatPoint toTargetPoint;
- FloatPoint toPoint2;
- if ((m_fromSource->hasMoreData() && !m_fromSource->parseCurveToCubicSmoothSegment(fromPoint2, fromTargetPoint))
- || !m_toSource->parseCurveToCubicSmoothSegment(toPoint2, toTargetPoint))
- return false;
-
- m_consumer->curveToCubicSmooth(blendAnimatedFloatPoint(fromPoint2, toPoint2),
- blendAnimatedFloatPoint(fromTargetPoint, toTargetPoint),
- m_isInFirstHalfOfAnimation ? m_fromMode : m_toMode);
- m_fromCurrentPoint = m_fromMode == AbsoluteCoordinates ? fromTargetPoint : m_fromCurrentPoint + fromTargetPoint;
- m_toCurrentPoint = m_toMode == AbsoluteCoordinates ? toTargetPoint : m_toCurrentPoint + toTargetPoint;
- return true;
+ m_consumer->curveToCubicSmooth(
+ blendAnimatedFloatPoint(fromSeg.point2, toSeg.point2),
+ blendAnimatedFloatPoint(fromSeg.targetPoint, toSeg.targetPoint),
+ m_isInFirstHalfOfAnimation ? m_fromMode : m_toMode);
+ m_fromCurrentPoint = m_fromMode == AbsoluteCoordinates ? fromSeg.targetPoint : m_fromCurrentPoint + fromSeg.targetPoint;
+ m_toCurrentPoint = m_toMode == AbsoluteCoordinates ? toSeg.targetPoint : m_toCurrentPoint + toSeg.targetPoint;
}
-bool SVGPathBlender::blendCurveToQuadraticSegment()
+void SVGPathBlender::blendCurveToQuadraticSegment(const PathSegmentData& fromSeg, const PathSegmentData& toSeg)
{
- FloatPoint fromTargetPoint;
- FloatPoint fromPoint1;
- FloatPoint toTargetPoint;
- FloatPoint toPoint1;
- if ((m_fromSource->hasMoreData() && !m_fromSource->parseCurveToQuadraticSegment(fromPoint1, fromTargetPoint))
- || !m_toSource->parseCurveToQuadraticSegment(toPoint1, toTargetPoint))
- return false;
-
- m_consumer->curveToQuadratic(blendAnimatedFloatPoint(fromPoint1, toPoint1),
- blendAnimatedFloatPoint(fromTargetPoint, toTargetPoint),
- m_isInFirstHalfOfAnimation ? m_fromMode : m_toMode);
- m_fromCurrentPoint = m_fromMode == AbsoluteCoordinates ? fromTargetPoint : m_fromCurrentPoint + fromTargetPoint;
- m_toCurrentPoint = m_toMode == AbsoluteCoordinates ? toTargetPoint : m_toCurrentPoint + toTargetPoint;
- return true;
+ m_consumer->curveToQuadratic(
+ blendAnimatedFloatPoint(fromSeg.point1, toSeg.point1),
+ blendAnimatedFloatPoint(fromSeg.targetPoint, toSeg.targetPoint),
+ m_isInFirstHalfOfAnimation ? m_fromMode : m_toMode);
+ m_fromCurrentPoint = m_fromMode == AbsoluteCoordinates ? fromSeg.targetPoint : m_fromCurrentPoint + fromSeg.targetPoint;
+ m_toCurrentPoint = m_toMode == AbsoluteCoordinates ? toSeg.targetPoint : m_toCurrentPoint + toSeg.targetPoint;
}
-bool SVGPathBlender::blendCurveToQuadraticSmoothSegment()
+void SVGPathBlender::blendCurveToQuadraticSmoothSegment(const PathSegmentData& fromSeg, const PathSegmentData& toSeg)
{
- FloatPoint fromTargetPoint;
- FloatPoint toTargetPoint;
- if ((m_fromSource->hasMoreData() && !m_fromSource->parseCurveToQuadraticSmoothSegment(fromTargetPoint))
- || !m_toSource->parseCurveToQuadraticSmoothSegment(toTargetPoint))
- return false;
-
- m_consumer->curveToQuadraticSmooth(blendAnimatedFloatPoint(fromTargetPoint, toTargetPoint), m_isInFirstHalfOfAnimation ? m_fromMode : m_toMode);
- m_fromCurrentPoint = m_fromMode == AbsoluteCoordinates ? fromTargetPoint : m_fromCurrentPoint + fromTargetPoint;
- m_toCurrentPoint = m_toMode == AbsoluteCoordinates ? toTargetPoint : m_toCurrentPoint + toTargetPoint;
- return true;
+ m_consumer->curveToQuadraticSmooth(blendAnimatedFloatPoint(fromSeg.targetPoint, toSeg.targetPoint), m_isInFirstHalfOfAnimation ? m_fromMode : m_toMode);
+ m_fromCurrentPoint = m_fromMode == AbsoluteCoordinates ? fromSeg.targetPoint : m_fromCurrentPoint + fromSeg.targetPoint;
+ m_toCurrentPoint = m_toMode == AbsoluteCoordinates ? toSeg.targetPoint : m_toCurrentPoint + toSeg.targetPoint;
}
-bool SVGPathBlender::blendArcToSegment()
+void SVGPathBlender::blendArcToSegment(const PathSegmentData& fromSeg, const PathSegmentData& toSeg)
{
- float fromRx = 0;
- float fromRy = 0;
- float fromAngle = 0;
- bool fromLargeArc = false;
- bool fromSweep = false;
- FloatPoint fromTargetPoint;
- float toRx = 0;
- float toRy = 0;
- float toAngle = 0;
- bool toLargeArc = false;
- bool toSweep = false;
- FloatPoint toTargetPoint;
- if ((m_fromSource->hasMoreData() && !m_fromSource->parseArcToSegment(fromRx, fromRy, fromAngle, fromLargeArc, fromSweep, fromTargetPoint))
- || !m_toSource->parseArcToSegment(toRx, toRy, toAngle, toLargeArc, toSweep, toTargetPoint))
- return false;
-
- ASSERT(!m_addTypesCount || m_fromMode == m_toMode);
-
- FloatPoint blendedRadii = blendAnimatedFloatPointSameCoordinates(FloatPoint(fromRx, fromRy), FloatPoint(toRx, toRy));
- float blendedAngle = blendAnimatedFloatPointSameCoordinates(FloatPoint(fromAngle, 0), FloatPoint(toAngle, 0)).x();
+ ASSERT(!m_addTypesCount || fromSeg.command == toSeg.command);
+
bool blendedLargeArc;
bool blendedSweep;
if (m_addTypesCount) {
- blendedLargeArc = fromLargeArc || toLargeArc;
- blendedSweep = fromSweep || toSweep;
+ blendedLargeArc = fromSeg.arcLarge || toSeg.arcLarge;
+ blendedSweep = fromSeg.arcSweep || toSeg.arcSweep;
} else {
- blendedLargeArc = m_isInFirstHalfOfAnimation ? fromLargeArc : toLargeArc;
- blendedSweep = m_isInFirstHalfOfAnimation ? fromSweep : toSweep;
+ blendedLargeArc = m_isInFirstHalfOfAnimation ? fromSeg.arcLarge : toSeg.arcLarge;
+ blendedSweep = m_isInFirstHalfOfAnimation ? fromSeg.arcSweep : toSeg.arcSweep;
}
+ FloatPoint blendedRadii = blendAnimatedFloatPointSameCoordinates(fromSeg.arcRadii(), toSeg.arcRadii());
+ float blendedAngle = blendAnimatedFloatPointSameCoordinates(fromSeg.point2, toSeg.point2).x();
+
m_consumer->arcTo(
blendedRadii.x(), blendedRadii.y(), blendedAngle, blendedLargeArc, blendedSweep,
- blendAnimatedFloatPoint(fromTargetPoint, toTargetPoint),
+ blendAnimatedFloatPoint(fromSeg.targetPoint, toSeg.targetPoint),
m_isInFirstHalfOfAnimation ? m_fromMode : m_toMode);
- m_fromCurrentPoint = m_fromMode == AbsoluteCoordinates ? fromTargetPoint : m_fromCurrentPoint + fromTargetPoint;
- m_toCurrentPoint = m_toMode == AbsoluteCoordinates ? toTargetPoint : m_toCurrentPoint + toTargetPoint;
- return true;
+ m_fromCurrentPoint = m_fromMode == AbsoluteCoordinates ? fromSeg.targetPoint : m_fromCurrentPoint + fromSeg.targetPoint;
+ m_toCurrentPoint = m_toMode == AbsoluteCoordinates ? toSeg.targetPoint : m_toCurrentPoint + toSeg.targetPoint;
}
static inline PathCoordinateMode coordinateModeOfCommand(const SVGPathSegType& type)
@@ -295,20 +222,6 @@ static inline PathCoordinateMode coordinateModeOfCommand(const SVGPathSegType& t
return AbsoluteCoordinates;
}
-static inline bool isSegmentEqual(const SVGPathSegType& fromType, const SVGPathSegType& toType, const PathCoordinateMode& fromMode, const PathCoordinateMode& toMode)
-{
- if (fromType == toType && (fromType == PathSegUnknown || fromType == PathSegClosePath))
- return true;
-
- unsigned short from = fromType;
- unsigned short to = toType;
- if (fromMode == toMode)
- return from == to;
- if (fromMode == AbsoluteCoordinates)
- return from == to - 1;
- return to == from - 1;
-}
-
bool SVGPathBlender::addAnimatedPath(unsigned repeatCount)
{
TemporaryChange<unsigned> change(m_addTypesCount, repeatCount);
@@ -322,80 +235,77 @@ bool SVGPathBlender::blendAnimatedPath(float progress)
bool fromSourceHadData = m_fromSource->hasMoreData();
while (m_toSource->hasMoreData()) {
- SVGPathSegType fromCommand;
- SVGPathSegType toCommand;
- if ((fromSourceHadData && !m_fromSource->parseSVGSegmentType(fromCommand)) || !m_toSource->parseSVGSegmentType(toCommand))
+ PathSegmentData toSeg = m_toSource->parseSegment();
+ if (toSeg.command == PathSegUnknown)
return false;
- m_toMode = coordinateModeOfCommand(toCommand);
- m_fromMode = fromSourceHadData ? coordinateModeOfCommand(fromCommand) : m_toMode;
- if (m_fromMode != m_toMode && m_addTypesCount)
+ PathSegmentData fromSeg;
+ fromSeg.command = toSeg.command;
+
+ if (m_fromSource->hasMoreData()) {
+ fromSeg = m_fromSource->parseSegment();
+ if (fromSeg.command == PathSegUnknown)
+ return false;
+ }
+
+ if (toAbsolutePathSegType(fromSeg.command) != toAbsolutePathSegType(toSeg.command))
return false;
- if (fromSourceHadData && !isSegmentEqual(fromCommand, toCommand, m_fromMode, m_toMode))
+ m_fromMode = coordinateModeOfCommand(fromSeg.command);
+ m_toMode = coordinateModeOfCommand(toSeg.command);
+
+ if (m_addTypesCount && m_fromMode != m_toMode)
return false;
- switch (toCommand) {
+ switch (toSeg.command) {
case PathSegMoveToRel:
case PathSegMoveToAbs:
- if (!blendMoveToSegment())
- return false;
+ blendMoveToSegment(fromSeg, toSeg);
break;
case PathSegLineToRel:
case PathSegLineToAbs:
- if (!blendLineToSegment())
- return false;
+ blendLineToSegment(fromSeg, toSeg);
break;
case PathSegLineToHorizontalRel:
case PathSegLineToHorizontalAbs:
- if (!blendLineToHorizontalSegment())
- return false;
+ blendLineToHorizontalSegment(fromSeg, toSeg);
break;
case PathSegLineToVerticalRel:
case PathSegLineToVerticalAbs:
- if (!blendLineToVerticalSegment())
- return false;
+ blendLineToVerticalSegment(fromSeg, toSeg);
break;
case PathSegClosePath:
m_consumer->closePath();
break;
case PathSegCurveToCubicRel:
case PathSegCurveToCubicAbs:
- if (!blendCurveToCubicSegment())
- return false;
+ blendCurveToCubicSegment(fromSeg, toSeg);
break;
case PathSegCurveToCubicSmoothRel:
case PathSegCurveToCubicSmoothAbs:
- if (!blendCurveToCubicSmoothSegment())
- return false;
+ blendCurveToCubicSmoothSegment(fromSeg, toSeg);
break;
case PathSegCurveToQuadraticRel:
case PathSegCurveToQuadraticAbs:
- if (!blendCurveToQuadraticSegment())
- return false;
+ blendCurveToQuadraticSegment(fromSeg, toSeg);
break;
case PathSegCurveToQuadraticSmoothRel:
case PathSegCurveToQuadraticSmoothAbs:
- if (!blendCurveToQuadraticSmoothSegment())
- return false;
+ blendCurveToQuadraticSmoothSegment(fromSeg, toSeg);
break;
case PathSegArcRel:
case PathSegArcAbs:
- if (!blendArcToSegment())
- return false;
+ blendArcToSegment(fromSeg, toSeg);
break;
- case PathSegUnknown:
- return false;
+ default:
+ ASSERT_NOT_REACHED();
}
if (!fromSourceHadData)
continue;
if (m_fromSource->hasMoreData() != m_toSource->hasMoreData())
return false;
- if (!m_fromSource->hasMoreData() || !m_toSource->hasMoreData())
- return true;
}
-
return true;
}
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