com.sun.scenario.effect.MotionBlur Maven / Gradle / Ivy
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* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
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*
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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package com.sun.scenario.effect;
import com.sun.javafx.geom.BaseBounds;
import com.sun.javafx.geom.DirtyRegionContainer;
import com.sun.javafx.geom.DirtyRegionPool;
import com.sun.javafx.geom.RectBounds;
import com.sun.javafx.geom.Rectangle;
import com.sun.javafx.geom.transform.BaseTransform;
import com.sun.scenario.effect.impl.Renderer;
import com.sun.scenario.effect.impl.state.LinearConvolveKernel;
import com.sun.scenario.effect.impl.state.MotionBlurState;
/**
* A motion blur effect using a Gaussian convolution kernel, with a
* configurable radius and angle.
*/
public class MotionBlur extends LinearConvolveCoreEffect {
private MotionBlurState state = new MotionBlurState();
/**
* Constructs a new {@code MotionBlur} effect with the default radius
* (10.0) and default angle (0.0), using the default input for source
* data.
* This is a shorthand equivalent to:
*
* new MotionBlur(10f, 0f, DefaultInput)
*
*/
public MotionBlur() {
this(10f, 0f, DefaultInput);
}
/**
* Constructs a new {@code MotionBlur} effect with the given radius
* and angle, using the default input for source data.
* This is a shorthand equivalent to:
*
* new MotionBlur(radius, angle, DefaultInput)
*
*
* @param radius the radius of the Gaussian kernel
* @param angle the angle of the motion effect, in radians
* @throws IllegalArgumentException if {@code radius} is outside the
* allowable range
*/
public MotionBlur(float radius, float angle) {
this(radius, angle, DefaultInput);
}
/**
* Constructs a new {@code MotionBlur} effect with the given radius
* and angle.
*
* @param radius the radius of the Gaussian kernel
* @param angle the angle of the motion effect, in radians
* @param input the single input {@code Effect}
* @throws IllegalArgumentException if {@code radius} is outside the
* allowable range
*/
public MotionBlur(float radius, float angle, Effect input) {
super(input);
setRadius(radius);
setAngle(angle);
}
@Override
LinearConvolveKernel getState() {
return state;
}
@Override
public AccelType getAccelType(FilterContext fctx) {
return Renderer.getRenderer(fctx).getAccelType();
}
/**
* Returns the input for this {@code Effect}.
*
* @return the input for this {@code Effect}
*/
public final Effect getInput() {
return getInputs().get(0);
}
/**
* Sets the input for this {@code Effect} to a specific {@code Effect}
* or to the default input if {@code input} is {@code null}.
*
* @param input the input for this {@code Effect}
*/
public void setInput(Effect input) {
setInput(0, input);
}
/**
* Returns the radius of the Gaussian kernel.
*
* @return the radius of the Gaussian kernel
*/
public float getRadius() {
return state.getRadius();
}
/**
* Sets the radius of the Gaussian kernel.
*
* Min: 0.0
* Max: 63.0
* Default: 10.0
* Identity: 0.0
*
*
* @param radius the radius of the Gaussian kernel
* @throws IllegalArgumentException if {@code radius} is outside the
* allowable range
*/
public void setRadius(float radius) {
state.setRadius(radius);
}
/**
* Returns the angle of the motion effect, in radians.
*
* @return the angle of the motion effect, in radians
*/
public float getAngle() {
return state.getAngle();
}
/**
* Sets the angle of the motion effect, in radians.
*
* Min: n/a
* Max: n/a
* Default: 0.0
* Identity: n/a
*
*
* @param angle the angle of the motion effect, in radians
*/
public void setAngle(float angle) {
state.setAngle(angle);
}
@Override
public BaseBounds getBounds(BaseTransform transform, Effect defaultInput) {
BaseBounds r = super.getBounds(null, defaultInput);
int hpad = state.getHPad();
int vpad = state.getVPad();
BaseBounds ret = new RectBounds(r.getMinX(), r.getMinY(), r.getMaxX(), r.getMaxY());
((RectBounds) ret).grow(hpad, vpad);
return transformBounds(transform, ret);
}
@Override
public Rectangle getResultBounds(BaseTransform transform,
Rectangle outputClip,
ImageData... inputDatas)
{
Rectangle r = super.getResultBounds(transform, outputClip, inputDatas);
int hpad = state.getHPad();
int vpad = state.getVPad();
Rectangle ret = new Rectangle(r);
ret.grow(hpad, vpad);
return ret;
}
@Override
public boolean reducesOpaquePixels() {
if (!state.isNop()) {
return true;
}
final Effect input = getInput();
return input != null && input.reducesOpaquePixels();
}
@Override
public DirtyRegionContainer getDirtyRegions(Effect defaultInput, DirtyRegionPool regionPool) {
Effect di = getDefaultedInput(0, defaultInput);
DirtyRegionContainer drc = di.getDirtyRegions(defaultInput, regionPool);
drc.grow(state.getHPad(), state.getVPad());
return drc;
}
}