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lottie/vector: reserve memory ahead to minimize reallocation.

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Change-Id: Idb973bb7660c4ec95f36aa36d3707aa6030f5ffc
This commit is contained in:
subhransu mohanty 2018-07-30 14:54:42 +09:00
parent b7f8007431
commit abb7872b79
1 changed files with 5 additions and 0 deletions
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5
src/vector/vpath.cpp
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@ -138,6 +138,7 @@ void VPath::VPathData::arcTo(const VRectF &rect, float startAngle,
VPointF curve_start = VPointF curve_start =
curvesForArc(rect, startAngle, sweepLength, pts, &point_count); curvesForArc(rect, startAngle, sweepLength, pts, &point_count);
reserve(point_count + 1, point_count / 3 + 1);
if (isEmpty() || forceMoveTo) { if (isEmpty() || forceMoveTo) {
moveTo(curve_start); moveTo(curve_start);
} else { } else {
@ -169,6 +170,7 @@ void VPath::VPathData::addOval(const VRectF &rect, VPath::Direction dir)
float h2 = rect.height() / 2; float h2 = rect.height() / 2;
float h2k = h2 * PATH_KAPPA; float h2k = h2 * PATH_KAPPA;
reserve(14, 7); // 1Move + 4Cubic + 1Close
if (dir == VPath::Direction::CW) { if (dir == VPath::Direction::CW) {
// moveto 12 o'clock. // moveto 12 o'clock.
moveTo(VPointF(x + w2, y)); moveTo(VPointF(x + w2, y));
@ -200,6 +202,7 @@ void VPath::VPathData::addOval(const VRectF &rect, VPath::Direction dir)
cubicTo(VPointF(x + w, y + h2 - h2k), VPointF(x + w2 + w2k, y), cubicTo(VPointF(x + w, y + h2 - h2k), VPointF(x + w2 + w2k, y),
VPointF(x + w2, y)); VPointF(x + w2, y));
} }
close();
} }
void VPath::VPathData::addRect(const VRectF &rect, VPath::Direction dir) void VPath::VPathData::addRect(const VRectF &rect, VPath::Direction dir)
@ -211,6 +214,7 @@ void VPath::VPathData::addRect(const VRectF &rect, VPath::Direction dir)
float w = rect.width(); float w = rect.width();
float h = rect.height(); float h = rect.height();
reserve(6, 6); // 1Move + 4Line + 1Close
if (dir == VPath::Direction::CW) { if (dir == VPath::Direction::CW) {
moveTo(VPointF(x + w, y)); moveTo(VPointF(x + w, y));
lineTo(VPointF(x + w, y + h)); lineTo(VPointF(x + w, y + h));
@ -244,6 +248,7 @@ void VPath::VPathData::addRoundRect(const VRectF &rect, float rx, float ry,
if (rx > w) rx = w; if (rx > w) rx = w;
if (ry > h) ry = h; if (ry > h) ry = h;
reserve(14, 7); // 1Move + 4Cubic + 1Close
if (dir == VPath::Direction::CW) { if (dir == VPath::Direction::CW) {
moveTo(VPointF(x + w, y + ry / 2.f)); moveTo(VPointF(x + w, y + ry / 2.f));
arcTo(VRectF(x + w - rx, y + h - ry, rx, ry), 0, -90, false); arcTo(VRectF(x + w - rx, y + h - ry, rx, ry), 0, -90, false);