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src/java.desktop/share/classes/sun/java2d/marlin/DTransformingPathConsumer2D.java
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@@ -25,28 +25,62 @@
package sun.java2d.marlin;
import java.awt.geom.AffineTransform;
import java.awt.geom.Path2D;
+import sun.java2d.marlin.DHelpers.PolyStack;
final class DTransformingPathConsumer2D {
- DTransformingPathConsumer2D() {
- // used by DRendererContext
- }
+ private final DRendererContext rdrCtx;
+
+ // recycled ClosedPathDetector instance from detectClosedPath()
+ private final ClosedPathDetector cpDetector;
// recycled DPathConsumer2D instance from wrapPath2d()
private final Path2DWrapper wp_Path2DWrapper = new Path2DWrapper();
+ // recycled DPathConsumer2D instances from deltaTransformConsumer()
+ private final DeltaScaleFilter dt_DeltaScaleFilter = new DeltaScaleFilter();
+ private final DeltaTransformFilter dt_DeltaTransformFilter = new DeltaTransformFilter();
+
+ // recycled DPathConsumer2D instances from inverseDeltaTransformConsumer()
+ private final DeltaScaleFilter iv_DeltaScaleFilter = new DeltaScaleFilter();
+ private final DeltaTransformFilter iv_DeltaTransformFilter = new DeltaTransformFilter();
+
+ // recycled PathTracer instances from tracer...() methods
+ private final PathTracer tracerInput = new PathTracer("[Input]");
+ private final PathTracer tracerCPDetector = new PathTracer("ClosedPathDetector");
+ private final PathTracer tracerStroker = new PathTracer("Stroker");
+
+ DTransformingPathConsumer2D(final DRendererContext rdrCtx) {
+ // used by RendererContext
+ this.rdrCtx = rdrCtx;
+ this.cpDetector = new ClosedPathDetector(rdrCtx);
+ }
+
DPathConsumer2D wrapPath2d(Path2D.Double p2d)
{
return wp_Path2DWrapper.init(p2d);
}
- // recycled DPathConsumer2D instances from deltaTransformConsumer()
- private final DeltaScaleFilter dt_DeltaScaleFilter = new DeltaScaleFilter();
- private final DeltaTransformFilter dt_DeltaTransformFilter = new DeltaTransformFilter();
+ DPathConsumer2D traceInput(DPathConsumer2D out) {
+ return tracerInput.init(out);
+ }
+
+ DPathConsumer2D traceClosedPathDetector(DPathConsumer2D out) {
+ return tracerCPDetector.init(out);
+ }
+
+ DPathConsumer2D traceStroker(DPathConsumer2D out) {
+ return tracerStroker.init(out);
+ }
+
+ DPathConsumer2D detectClosedPath(DPathConsumer2D out)
+ {
+ return cpDetector.init(out);
+ }
DPathConsumer2D deltaTransformConsumer(DPathConsumer2D out,
AffineTransform at)
{
if (at == null) {
@@ -59,20 +93,93 @@
if (mxy == 0.0d && myx == 0.0d) {
if (mxx == 1.0d && myy == 1.0d) {
return out;
} else {
+ // Scale only
+ if (rdrCtx.doClip) {
+ // adjust clip rectangle (ymin, ymax, xmin, xmax):
+ adjustClipScale(rdrCtx.clipRect, mxx, myy);
+ }
return dt_DeltaScaleFilter.init(out, mxx, myy);
}
} else {
+ if (rdrCtx.doClip) {
+ // adjust clip rectangle (ymin, ymax, xmin, xmax):
+ adjustClipInverseDelta(rdrCtx.clipRect, mxx, mxy, myx, myy);
+ }
return dt_DeltaTransformFilter.init(out, mxx, mxy, myx, myy);
}
}
- // recycled DPathConsumer2D instances from inverseDeltaTransformConsumer()
- private final DeltaScaleFilter iv_DeltaScaleFilter = new DeltaScaleFilter();
- private final DeltaTransformFilter iv_DeltaTransformFilter = new DeltaTransformFilter();
+ private static void adjustClipOffset(final double[] clipRect) {
+ clipRect[0] += Renderer.RDR_OFFSET_Y;
+ clipRect[1] += Renderer.RDR_OFFSET_Y;
+ clipRect[2] += Renderer.RDR_OFFSET_X;
+ clipRect[3] += Renderer.RDR_OFFSET_X;
+ }
+
+ private static void adjustClipScale(final double[] clipRect,
+ final double mxx, final double myy)
+ {
+ adjustClipOffset(clipRect);
+
+ // Adjust the clipping rectangle (iv_DeltaScaleFilter):
+ clipRect[0] /= myy;
+ clipRect[1] /= myy;
+ clipRect[2] /= mxx;
+ clipRect[3] /= mxx;
+ }
+
+ private static void adjustClipInverseDelta(final double[] clipRect,
+ final double mxx, final double mxy,
+ final double myx, final double myy)
+ {
+ adjustClipOffset(clipRect);
+
+ // Adjust the clipping rectangle (iv_DeltaTransformFilter):
+ final double det = mxx * myy - mxy * myx;
+ final double imxx = myy / det;
+ final double imxy = -mxy / det;
+ final double imyx = -myx / det;
+ final double imyy = mxx / det;
+
+ double xmin, xmax, ymin, ymax;
+ double x, y;
+ // xmin, ymin:
+ x = clipRect[2] * imxx + clipRect[0] * imxy;
+ y = clipRect[2] * imyx + clipRect[0] * imyy;
+
+ xmin = xmax = x;
+ ymin = ymax = y;
+
+ // xmax, ymin:
+ x = clipRect[3] * imxx + clipRect[0] * imxy;
+ y = clipRect[3] * imyx + clipRect[0] * imyy;
+
+ if (x < xmin) { xmin = x; } else if (x > xmax) { xmax = x; }
+ if (y < ymin) { ymin = y; } else if (y > ymax) { ymax = y; }
+
+ // xmin, ymax:
+ x = clipRect[2] * imxx + clipRect[1] * imxy;
+ y = clipRect[2] * imyx + clipRect[1] * imyy;
+
+ if (x < xmin) { xmin = x; } else if (x > xmax) { xmax = x; }
+ if (y < ymin) { ymin = y; } else if (y > ymax) { ymax = y; }
+
+ // xmax, ymax:
+ x = clipRect[3] * imxx + clipRect[1] * imxy;
+ y = clipRect[3] * imyx + clipRect[1] * imyy;
+
+ if (x < xmin) { xmin = x; } else if (x > xmax) { xmax = x; }
+ if (y < ymin) { ymin = y; } else if (y > ymax) { ymax = y; }
+
+ clipRect[0] = ymin;
+ clipRect[1] = ymax;
+ clipRect[2] = xmin;
+ clipRect[3] = xmax;
+ }
DPathConsumer2D inverseDeltaTransformConsumer(DPathConsumer2D out,
AffineTransform at)
{
if (at == null) {
@@ -88,20 +195,19 @@
return out;
} else {
return iv_DeltaScaleFilter.init(out, 1.0d/mxx, 1.0d/myy);
}
} else {
- double det = mxx * myy - mxy * myx;
+ final double det = mxx * myy - mxy * myx;
return iv_DeltaTransformFilter.init(out,
myy / det,
-mxy / det,
-myx / det,
mxx / det);
}
}
-
static final class DeltaScaleFilter implements DPathConsumer2D {
private DPathConsumer2D out;
private double sx, sy;
DeltaScaleFilter() {}
@@ -270,8 +376,156 @@
}
@Override
public long getNativeConsumer() {
throw new InternalError("Not using a native peer");
+ }
+ }
+
+ static final class ClosedPathDetector implements DPathConsumer2D {
+
+ private final DRendererContext rdrCtx;
+ private final PolyStack stack;
+
+ private DPathConsumer2D out;
+
+ ClosedPathDetector(final DRendererContext rdrCtx) {
+ this.rdrCtx = rdrCtx;
+ this.stack = (rdrCtx.stats != null) ?
+ new PolyStack(rdrCtx,
+ rdrCtx.stats.stat_cpd_polystack_types,
+ rdrCtx.stats.stat_cpd_polystack_curves,
+ rdrCtx.stats.hist_cpd_polystack_curves,
+ rdrCtx.stats.stat_array_cpd_polystack_curves,
+ rdrCtx.stats.stat_array_cpd_polystack_types)
+ : new PolyStack(rdrCtx);
+ }
+
+ ClosedPathDetector init(DPathConsumer2D out) {
+ this.out = out;
+ return this; // fluent API
+ }
+
+ /**
+ * Disposes this instance:
+ * clean up before reusing this instance
+ */
+ void dispose() {
+ stack.dispose();
+ }
+
+ @Override
+ public void pathDone() {
+ // previous path is not closed:
+ finish(false);
+ out.pathDone();
+
+ // TODO: fix possible leak if exception happened
+ // Dispose this instance:
+ dispose();
+ }
+
+ @Override
+ public void closePath() {
+ // path is closed
+ finish(true);
+ out.closePath();
+ }
+
+ @Override
+ public void moveTo(double x0, double y0) {
+ // previous path is not closed:
+ finish(false);
+ out.moveTo(x0, y0);
+ }
+
+ private void finish(final boolean closed) {
+ rdrCtx.closedPath = closed;
+ stack.pullAll(out);
+ }
+
+ @Override
+ public void lineTo(double x1, double y1) {
+ stack.pushLine(x1, y1);
+ }
+
+ @Override
+ public void curveTo(double x3, double y3,
+ double x2, double y2,
+ double x1, double y1)
+ {
+ stack.pushCubic(x1, y1, x2, y2, x3, y3);
+ }
+
+ @Override
+ public void quadTo(double x2, double y2, double x1, double y1) {
+ stack.pushQuad(x1, y1, x2, y2);
+ }
+
+ @Override
+ public long getNativeConsumer() {
+ throw new InternalError("Not using a native peer");
+ }
+ }
+
+ static final class PathTracer implements DPathConsumer2D {
+ private final String prefix;
+ private DPathConsumer2D out;
+
+ PathTracer(String name) {
+ this.prefix = name + ": ";
+ }
+
+ PathTracer init(DPathConsumer2D out) {
+ this.out = out;
+ return this; // fluent API
+ }
+
+ @Override
+ public void moveTo(double x0, double y0) {
+ log("moveTo (" + x0 + ", " + y0 + ')');
+ out.moveTo(x0, y0);
+ }
+
+ @Override
+ public void lineTo(double x1, double y1) {
+ log("lineTo (" + x1 + ", " + y1 + ')');
+ out.lineTo(x1, y1);
+ }
+
+ @Override
+ public void curveTo(double x1, double y1,
+ double x2, double y2,
+ double x3, double y3)
+ {
+ log("curveTo P1(" + x1 + ", " + y1 + ") P2(" + x2 + ", " + y2 + ") P3(" + x3 + ", " + y3 + ')');
+ out.curveTo(x1, y1, x2, y2, x3, y3);
+ }
+
+ @Override
+ public void quadTo(double x1, double y1, double x2, double y2) {
+ log("quadTo P1(" + x1 + ", " + y1 + ") P2(" + x2 + ", " + y2 + ')');
+ out.quadTo(x1, y1, x2, y2);
+ }
+
+ @Override
+ public void closePath() {
+ log("closePath");
+ out.closePath();
+ }
+
+ @Override
+ public void pathDone() {
+ log("pathDone");
+ out.pathDone();
+ }
+
+ private void log(final String message) {
+ System.out.println(prefix + message);
+ }
+
+ @Override
+ public long getNativeConsumer() {
+ throw new InternalError("Not using a native peer");
}
}
}
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