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src/java.desktop/share/classes/sun/java2d/marlin/DDasher.java
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@@ -135,11 +135,11 @@
}
phase += dash[sidx];
dashOn = !dashOn;
}
}
- } else if (phase > 0) {
+ } else if (phase > 0.0d) {
if (cycles >= MAX_CYCLES) {
phase = 0.0d;
} else {
int fullcycles = FloatMath.floor_int(cycles);
if ((fullcycles & dash.length & 1) != 0) {
@@ -155,16 +155,17 @@
}
}
this.dash = dash;
this.dashLen = dashLen;
- this.startPhase = this.phase = phase;
+ this.phase = phase;
+ this.startPhase = phase;
this.startDashOn = dashOn;
this.startIdx = sidx;
this.starting = true;
- needsMoveTo = false;
- firstSegidx = 0;
+ this.needsMoveTo = false;
+ this.firstSegidx = 0;
this.recycleDashes = recycleDashes;
return this; // fluent API
}
@@ -199,21 +200,23 @@
for (int i = 0; i < len; i++) { newDashes[i] = dashes[i]; }
return newDashes;
}
@Override
- public void moveTo(double x0, double y0) {
- if (firstSegidx > 0) {
+ public void moveTo(final double x0, final double y0) {
+ if (firstSegidx != 0) {
out.moveTo(sx, sy);
emitFirstSegments();
}
needsMoveTo = true;
this.idx = startIdx;
this.dashOn = this.startDashOn;
this.phase = this.startPhase;
- this.sx = this.x0 = x0;
- this.sy = this.y0 = y0;
+ this.sx = x0;
+ this.sy = y0;
+ this.x0 = x0;
+ this.y0 = y0;
this.starting = true;
}
private void emitSeg(double[] buf, int off, int type) {
switch (type) {
@@ -234,11 +237,11 @@
}
private void emitFirstSegments() {
final double[] fSegBuf = firstSegmentsBuffer;
- for (int i = 0; i < firstSegidx; ) {
+ for (int i = 0, len = firstSegidx; i < len; ) {
int type = (int)fSegBuf[i];
emitSeg(fSegBuf, i + 1, type);
i += (type - 1);
}
firstSegidx = 0;
@@ -249,52 +252,63 @@
// buffer below.
private double[] firstSegmentsBuffer; // dynamic array
private int firstSegidx;
// precondition: pts must be in relative coordinates (relative to x0,y0)
- private void goTo(double[] pts, int off, final int type) {
- double x = pts[off + type - 4];
- double y = pts[off + type - 3];
- if (dashOn) {
+ private void goTo(final double[] pts, final int off, final int type,
+ final boolean on)
+ {
+ final int index = off + type;
+ final double x = pts[index - 4];
+ final double y = pts[index - 3];
+
+ if (on) {
if (starting) {
- int len = type - 1; // - 2 + 1
- int segIdx = firstSegidx;
- double[] buf = firstSegmentsBuffer;
- if (segIdx + len > buf.length) {
- if (DO_STATS) {
- rdrCtx.stats.stat_array_dasher_firstSegmentsBuffer
- .add(segIdx + len);
- }
- firstSegmentsBuffer = buf
- = firstSegmentsBuffer_ref.widenArray(buf, segIdx,
- segIdx + len);
- }
- buf[segIdx++] = type;
- len--;
- // small arraycopy (2, 4 or 6) but with offset:
- System.arraycopy(pts, off, buf, segIdx, len);
- segIdx += len;
- firstSegidx = segIdx;
+ goTo_starting(pts, off, type);
} else {
if (needsMoveTo) {
- out.moveTo(x0, y0);
needsMoveTo = false;
+ out.moveTo(x0, y0);
}
emitSeg(pts, off, type);
}
} else {
- starting = false;
+ if (starting) {
+ // low probability test (hotspot)
+ starting = false;
+ }
needsMoveTo = true;
}
this.x0 = x;
this.y0 = y;
}
+ private void goTo_starting(final double[] pts, final int off, final int type) {
+ int len = type - 1; // - 2 + 1
+ int segIdx = firstSegidx;
+ double[] buf = firstSegmentsBuffer;
+
+ if (segIdx + len > buf.length) {
+ if (DO_STATS) {
+ rdrCtx.stats.stat_array_dasher_firstSegmentsBuffer
+ .add(segIdx + len);
+ }
+ firstSegmentsBuffer = buf
+ = firstSegmentsBuffer_ref.widenArray(buf, segIdx,
+ segIdx + len);
+ }
+ buf[segIdx++] = type;
+ len--;
+ // small arraycopy (2, 4 or 6) but with offset:
+ System.arraycopy(pts, off, buf, segIdx, len);
+ firstSegidx = segIdx + len;
+ }
+
@Override
- public void lineTo(double x1, double y1) {
- double dx = x1 - x0;
- double dy = y1 - y0;
+ public void lineTo(final double x1, final double y1) {
+ final double dx = x1 - x0;
+ final double dy = y1 - y0;
double len = dx*dx + dy*dy;
if (len == 0.0d) {
return;
}
@@ -305,52 +319,65 @@
final double cx = dx / len;
final double cy = dy / len;
final double[] _curCurvepts = curCurvepts;
final double[] _dash = dash;
+ final int _dashLen = this.dashLen;
+
+ int _idx = idx;
+ boolean _dashOn = dashOn;
+ double _phase = phase;
double leftInThisDashSegment;
- double dashdx, dashdy, p;
+ double d, dashdx, dashdy, p;
while (true) {
- leftInThisDashSegment = _dash[idx] - phase;
+ d = _dash[_idx];
+ leftInThisDashSegment = d - _phase;
if (len <= leftInThisDashSegment) {
_curCurvepts[0] = x1;
_curCurvepts[1] = y1;
- goTo(_curCurvepts, 0, 4);
+
+ goTo(_curCurvepts, 0, 4, _dashOn);
// Advance phase within current dash segment
- phase += len;
+ _phase += len;
+
// TODO: compare double values using epsilon:
if (len == leftInThisDashSegment) {
- phase = 0.0d;
- idx = (idx + 1) % dashLen;
- dashOn = !dashOn;
+ _phase = 0.0d;
+ _idx = (_idx + 1) % _dashLen;
+ _dashOn = !_dashOn;
}
+
+ // Save local state:
+ idx = _idx;
+ dashOn = _dashOn;
+ phase = _phase;
return;
}
- dashdx = _dash[idx] * cx;
- dashdy = _dash[idx] * cy;
+ dashdx = d * cx;
+ dashdy = d * cy;
- if (phase == 0.0d) {
+ if (_phase == 0.0d) {
_curCurvepts[0] = x0 + dashdx;
_curCurvepts[1] = y0 + dashdy;
} else {
- p = leftInThisDashSegment / _dash[idx];
+ p = leftInThisDashSegment / d;
_curCurvepts[0] = x0 + p * dashdx;
_curCurvepts[1] = y0 + p * dashdy;
}
- goTo(_curCurvepts, 0, 4);
+ goTo(_curCurvepts, 0, 4, _dashOn);
len -= leftInThisDashSegment;
// Advance to next dash segment
- idx = (idx + 1) % dashLen;
- dashOn = !dashOn;
- phase = 0.0d;
+ _idx = (_idx + 1) % _dashLen;
+ _dashOn = !_dashOn;
+ _phase = 0.0d;
}
}
// shared instance in DDasher
private final LengthIterator li = new LengthIterator();
@@ -359,43 +386,59 @@
// that contains the curve we want to dash in the first type elements
private void somethingTo(int type) {
if (pointCurve(curCurvepts, type)) {
return;
}
- li.initializeIterationOnCurve(curCurvepts, type);
+ final LengthIterator _li = li;
+ final double[] _curCurvepts = curCurvepts;
+ final double[] _dash = dash;
+ final int _dashLen = this.dashLen;
+
+ _li.initializeIterationOnCurve(_curCurvepts, type);
+
+ int _idx = idx;
+ boolean _dashOn = dashOn;
+ double _phase = phase;
// initially the current curve is at curCurvepts[0...type]
int curCurveoff = 0;
double lastSplitT = 0.0d;
double t;
- double leftInThisDashSegment = dash[idx] - phase;
+ double leftInThisDashSegment = _dash[_idx] - _phase;
- while ((t = li.next(leftInThisDashSegment)) < 1.0d) {
+ while ((t = _li.next(leftInThisDashSegment)) < 1.0d) {
if (t != 0.0d) {
DHelpers.subdivideAt((t - lastSplitT) / (1.0d - lastSplitT),
- curCurvepts, curCurveoff,
- curCurvepts, 0,
- curCurvepts, type, type);
+ _curCurvepts, curCurveoff,
+ _curCurvepts, 0,
+ _curCurvepts, type, type);
lastSplitT = t;
- goTo(curCurvepts, 2, type);
+ goTo(_curCurvepts, 2, type, _dashOn);
curCurveoff = type;
}
// Advance to next dash segment
- idx = (idx + 1) % dashLen;
- dashOn = !dashOn;
- phase = 0.0d;
- leftInThisDashSegment = dash[idx];
- }
- goTo(curCurvepts, curCurveoff+2, type);
- phase += li.lastSegLen();
- if (phase >= dash[idx]) {
- phase = 0.0d;
- idx = (idx + 1) % dashLen;
- dashOn = !dashOn;
- }
+ _idx = (_idx + 1) % _dashLen;
+ _dashOn = !_dashOn;
+ _phase = 0.0d;
+ leftInThisDashSegment = _dash[_idx];
+ }
+
+ goTo(_curCurvepts, curCurveoff + 2, type, _dashOn);
+
+ _phase += _li.lastSegLen();
+ if (_phase >= _dash[_idx]) {
+ _phase = 0.0d;
+ _idx = (_idx + 1) % _dashLen;
+ _dashOn = !_dashOn;
+ }
+ // Save local state:
+ idx = _idx;
+ dashOn = _dashOn;
+ phase = _phase;
+
// reset LengthIterator:
- li.reset();
+ _li.reset();
}
private static boolean pointCurve(double[] curve, int type) {
for (int i = 2; i < type; i++) {
if (curve[i] != curve[i-2]) {
@@ -417,11 +460,11 @@
// limit+1 curves - one for each level of the tree + 1.
// NOTE: the way we do things here is not enough to traverse a general
// tree; however, the trees we are interested in have the property that
// every non leaf node has exactly 2 children
static final class LengthIterator {
- private enum Side {LEFT, RIGHT};
+ private enum Side {LEFT, RIGHT}
// Holds the curves at various levels of the recursion. The root
// (i.e. the original curve) is at recCurveStack[0] (but then it
// gets subdivided, the left half is put at 1, so most of the time
// only the right half of the original curve is at 0)
private final double[][] recCurveStack; // dirty
@@ -667,70 +710,73 @@
}
// this is a bit of a hack. It returns -1 if we're not on a leaf, and
// the length of the leaf if we are on a leaf.
private double onLeaf() {
- double[] curve = recCurveStack[recLevel];
+ final double[] curve = recCurveStack[recLevel];
+ final int _curveType = curveType;
double polyLen = 0.0d;
double x0 = curve[0], y0 = curve[1];
- for (int i = 2; i < curveType; i += 2) {
+ for (int i = 2; i < _curveType; i += 2) {
final double x1 = curve[i], y1 = curve[i+1];
final double len = DHelpers.linelen(x0, y0, x1, y1);
polyLen += len;
curLeafCtrlPolyLengths[i/2 - 1] = len;
x0 = x1;
y0 = y1;
}
final double lineLen = DHelpers.linelen(curve[0], curve[1],
- curve[curveType-2],
- curve[curveType-1]);
+ curve[_curveType-2],
+ curve[_curveType-1]);
if ((polyLen - lineLen) < ERR || recLevel == REC_LIMIT) {
return (polyLen + lineLen) / 2.0d;
}
return -1.0d;
}
}
@Override
- public void curveTo(double x1, double y1,
- double x2, double y2,
- double x3, double y3)
+ public void curveTo(final double x1, final double y1,
+ final double x2, final double y2,
+ final double x3, final double y3)
{
final double[] _curCurvepts = curCurvepts;
_curCurvepts[0] = x0; _curCurvepts[1] = y0;
_curCurvepts[2] = x1; _curCurvepts[3] = y1;
_curCurvepts[4] = x2; _curCurvepts[5] = y2;
_curCurvepts[6] = x3; _curCurvepts[7] = y3;
somethingTo(8);
}
@Override
- public void quadTo(double x1, double y1, double x2, double y2) {
+ public void quadTo(final double x1, final double y1,
+ final double x2, final double y2)
+ {
final double[] _curCurvepts = curCurvepts;
_curCurvepts[0] = x0; _curCurvepts[1] = y0;
_curCurvepts[2] = x1; _curCurvepts[3] = y1;
_curCurvepts[4] = x2; _curCurvepts[5] = y2;
somethingTo(6);
}
@Override
public void closePath() {
lineTo(sx, sy);
- if (firstSegidx > 0) {
+ if (firstSegidx != 0) {
if (!dashOn || needsMoveTo) {
out.moveTo(sx, sy);
}
emitFirstSegments();
}
moveTo(sx, sy);
}
@Override
public void pathDone() {
- if (firstSegidx > 0) {
+ if (firstSegidx != 0) {
out.moveTo(sx, sy);
emitFirstSegments();
}
out.pathDone();
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