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/*
* Copyright (c) 2009, 2014, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* 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).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
/*
* This file was originally generated by JSLC
* and then hand edited for performance.
*/
package com.sun.scenario.effect.impl.sw.sse;
import com.sun.scenario.effect.Effect;
import com.sun.scenario.effect.FilterContext;
import com.sun.scenario.effect.ImageData;
import com.sun.scenario.effect.impl.HeapImage;
import com.sun.scenario.effect.impl.Renderer;
import com.sun.javafx.geom.Rectangle;
import com.sun.javafx.geom.transform.BaseTransform;
import com.sun.scenario.effect.impl.state.BoxRenderState;
public class SSEBoxShadowPeer extends SSEEffectPeer {
public SSEBoxShadowPeer(FilterContext fctx, Renderer r, String uniqueName) {
super(fctx, r, uniqueName);
}
@Override
public ImageData filter(Effect effect,
BoxRenderState brstate,
BaseTransform transform,
Rectangle outputClip,
ImageData... inputs)
{
setRenderState(brstate);
// NOTE: for now, all input images must be TYPE_INT_ARGB_PRE
// Calculate the amount the image grows on each iteration (size-1)
boolean horizontal = (getPass() == 0);
int hinc = horizontal ? brstate.getBoxPixelSize(0) - 1 : 0;
int vinc = horizontal ? 0 : brstate.getBoxPixelSize(1) - 1;
if (hinc < 0) hinc = 0;
if (vinc < 0) vinc = 0;
int iterations = brstate.getBlurPasses();
float spread = brstate.getSpread();
if (horizontal && (iterations < 1 || (hinc < 1 && vinc < 1))) {
inputs[0].addref();
return inputs[0];
}
// Calculate the amount the image will grow through the full operation
// Always upgrade to the next even amount of growth
int growx = (hinc * iterations + 1) & (~0x1);
int growy = (vinc * iterations + 1) & (~0x1);
// Assert: rstate.getEffectTransformSpace() == UserSpace
// NOTE: We could still have a transformed ImageData for other reasons...
HeapImage src = (HeapImage)inputs[0].getUntransformedImage();
Rectangle srcr = inputs[0].getUntransformedBounds();
HeapImage cur = src;
int curw = srcr.width;
int curh = srcr.height;
int curscan = cur.getScanlineStride();
int[] curPixels = cur.getPixelArray();
int finalw = curw + growx;
int finalh = curh + growy;
boolean force = !horizontal;
while (force || curw < finalw || curh < finalh) {
int neww = curw + hinc;
int newh = curh + vinc;
if (neww > finalw) neww = finalw;
if (newh > finalh) newh = finalh;
HeapImage dst = (HeapImage)getRenderer().getCompatibleImage(neww, newh);
int newscan = dst.getScanlineStride();
int[] newPixels = dst.getPixelArray();
if (iterations == 0) {
// The last "fixup" iteration of 2 should have no spread.
spread = 0f;
}
if (horizontal) {
filterHorizontalBlack(newPixels, neww, newh, newscan,
curPixels, curw, curh, curscan,
spread);
} else if (neww < finalw || newh < finalh) {
// Use BLACK for shadow color until very last pass
filterVerticalBlack(newPixels, neww, newh, newscan,
curPixels, curw, curh, curscan,
spread);
} else {
float shadowColor[] =
brstate.getShadowColor().getPremultipliedRGBComponents();
if (shadowColor[3] == 1f &&
shadowColor[0] == 0f &&
shadowColor[1] == 0f &&
shadowColor[2] == 0f)
{
filterVerticalBlack(newPixels, neww, newh, newscan,
curPixels, curw, curh, curscan,
spread);
} else {
filterVertical(newPixels, neww, newh, newscan,
curPixels, curw, curh, curscan,
spread, shadowColor);
}
}
if (cur != src) {
getRenderer().releaseCompatibleImage(cur);
}
iterations--;
force = false;
cur = dst;
curw = neww;
curh = newh;
curPixels = newPixels;
curscan = newscan;
}
Rectangle dstBounds =
new Rectangle(srcr.x - growx/2, srcr.y - growy/2, curw, curh);
return new ImageData(getFilterContext(), cur, dstBounds, inputs[0].getTransform());
}
private static native void
filterHorizontalBlack(int dstPixels[], int dstw, int dsth, int dstscan,
int srcPixels[], int srcw, int srch, int srcscan,
float spread);
private static native void
filterVerticalBlack(int dstPixels[], int dstw, int dsth, int dstscan,
int srcPixels[], int srcw, int srch, int srcscan,
float spread);
private static native void
filterVertical(int dstPixels[], int dstw, int dsth, int dstscan,
int srcPixels[], int srcw, int srch, int srcscan,
float spread, float shadowColor[]);
}
