1 /*
2 * Copyright (c) 2009, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 /*
27 * This file was originally generated by JSLC
28 * and then hand edited for performance.
29 */
30
31 package com.sun.scenario.effect.impl.sw.sse;
32
33 import com.sun.scenario.effect.Effect;
34 import com.sun.scenario.effect.BoxShadow;
35 import com.sun.scenario.effect.FilterContext;
36 import com.sun.scenario.effect.ImageData;
37 import com.sun.scenario.effect.impl.HeapImage;
38 import com.sun.scenario.effect.impl.Renderer;
39 import com.sun.javafx.geom.Rectangle;
40 import com.sun.javafx.geom.transform.BaseTransform;
41 import com.sun.scenario.effect.impl.state.BoxRenderState;
42
43 public class SSEBoxShadowPeer extends SSEEffectPeer<BoxRenderState> {
44
45 public SSEBoxShadowPeer(FilterContext fctx, Renderer r, String uniqueName) {
46 super(fctx, r, uniqueName);
47 }
48
49 @Override
50 public ImageData filter(Effect effect,
51 BoxRenderState brstate,
52 BaseTransform transform,
53 Rectangle outputClip,
54 ImageData... inputs)
55 {
56 setRenderState(brstate);
57 // NOTE: for now, all input images must be TYPE_INT_ARGB_PRE
58
59 // Calculate the amount the image grows on each iteration (size-1)
60 boolean horizontal = (getPass() == 0);
61 int hinc = horizontal ? brstate.getBoxPixelSize(0) - 1 : 0;
62 int vinc = horizontal ? 0 : brstate.getBoxPixelSize(1) - 1;
63 if (hinc < 0) hinc = 0;
64 if (vinc < 0) vinc = 0;
65 int iterations = brstate.getBlurPasses();
66 float spread = brstate.getSpread();
67 if (horizontal && (iterations < 1 || (hinc < 1 && vinc < 1))) {
68 inputs[0].addref();
69 return inputs[0];
70 }
71 // Calculate the amount the image will grow through the full operation
72 // Always upgrade to the next even amount of growth
73 int growx = (hinc * iterations + 1) & (~0x1);
74 int growy = (vinc * iterations + 1) & (~0x1);
75
76 // Assert: rstate.getEffectTransformSpace() == UserSpace
77 // NOTE: We could still have a transformed ImageData for other reasons...
78 HeapImage src = (HeapImage)inputs[0].getUntransformedImage();
79 Rectangle srcr = inputs[0].getUntransformedBounds();
80
81 HeapImage cur = src;
82 int curw = srcr.width;
83 int curh = srcr.height;
84 int curscan = cur.getScanlineStride();
85 int[] curPixels = cur.getPixelArray();
86
87 int finalw = curw + growx;
88 int finalh = curh + growy;
89 boolean force = !horizontal;
90 while (force || curw < finalw || curh < finalh) {
91 int neww = curw + hinc;
92 int newh = curh + vinc;
93 if (neww > finalw) neww = finalw;
94 if (newh > finalh) newh = finalh;
95 HeapImage dst = (HeapImage)getRenderer().getCompatibleImage(neww, newh);
96 int newscan = dst.getScanlineStride();
97 int[] newPixels = dst.getPixelArray();
98 if (iterations == 0) {
99 // The last "fixup" iteration of 2 should have no spread.
100 spread = 0f;
101 }
102 if (horizontal) {
103 filterHorizontalBlack(newPixels, neww, newh, newscan,
104 curPixels, curw, curh, curscan,
105 spread);
106 } else if (neww < finalw || newh < finalh) {
107 // Use BLACK for shadow color until very last pass
108 filterVerticalBlack(newPixels, neww, newh, newscan,
109 curPixels, curw, curh, curscan,
110 spread);
111 } else {
112 float shadowColor[] =
113 brstate.getShadowColor().getPremultipliedRGBComponents();
114 if (shadowColor[3] == 1f &&
115 shadowColor[0] == 0f &&
116 shadowColor[1] == 0f &&
117 shadowColor[2] == 0f)
118 {
119 filterVerticalBlack(newPixels, neww, newh, newscan,
120 curPixels, curw, curh, curscan,
121 spread);
122 } else {
123 filterVertical(newPixels, neww, newh, newscan,
124 curPixels, curw, curh, curscan,
125 spread, shadowColor);
126 }
127 }
128 if (cur != src) {
129 getRenderer().releaseCompatibleImage(cur);
130 }
131 iterations--;
132 force = false;
133 cur = dst;
134 curw = neww;
135 curh = newh;
136 curPixels = newPixels;
137 curscan = newscan;
138 }
139
140 Rectangle dstBounds =
141 new Rectangle(srcr.x - growx/2, srcr.y - growy/2, curw, curh);
142 return new ImageData(getFilterContext(), cur, dstBounds);
143 }
144
145 private static native void
146 filterHorizontalBlack(int dstPixels[], int dstw, int dsth, int dstscan,
147 int srcPixels[], int srcw, int srch, int srcscan,
148 float spread);
149
150 private static native void
151 filterVerticalBlack(int dstPixels[], int dstw, int dsth, int dstscan,
152 int srcPixels[], int srcw, int srch, int srcscan,
153 float spread);
154
155 private static native void
156 filterVertical(int dstPixels[], int dstw, int dsth, int dstscan,
157 int srcPixels[], int srcw, int srch, int srcscan,
158 float spread, float shadowColor[]);
159 }