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 package com.sun.scenario.effect.impl.state;
27
28 import com.sun.javafx.geom.Rectangle;
29 import com.sun.javafx.geom.transform.BaseTransform;
30 import com.sun.javafx.geom.transform.NoninvertibleTransformException;
31
32 /**
33 * An abstract helper intermediate implementation class for
34 * {@code LinearConvolve} effects that break down into a horizontal and
35 * a vertical pass.
36 */
37 public abstract class HVSeparableKernel extends LinearConvolveKernel {
38 @Override
39 public final int getNumberOfPasses() {
40 return 2;
41 }
42
43 @Override
44 public PassType getPassType(int pass) {
45 return (pass == 0)
46 ? PassType.HORIZONTAL_CENTERED
47 : PassType.VERTICAL_CENTERED;
48 }
49
50 @Override
51 public final Rectangle getResultBounds(Rectangle srcdimension, int pass) {
52 int ksize = getKernelSize(pass);
53 Rectangle ret = new Rectangle(srcdimension);
54 if (pass == 0) {
55 ret.grow(ksize/2, 0);
56 } else {
57 ret.grow(0, ksize/2);
58 }
59 return ret;
60 }
61
62 @Override
63 public final Rectangle getScaledResultBounds(Rectangle srcdimension, int pass) {
64 int ksize = getScaledKernelSize(pass);
65 Rectangle ret = new Rectangle(srcdimension);
66 if (pass == 0) {
67 ret.grow(ksize/2, 0);
68 } else {
69 ret.grow(0, ksize/2);
70 }
71 return ret;
72 }
73
74 @Override
75 public final float[] getVector(Rectangle srcnativedimensions,
76 BaseTransform transform, int pass)
77 {
78 float ret[] = new float[4];
79 float ps;
80 if (transform.isTranslateOrIdentity()) {
81 ps = 1f;
82 } else {
83 ret[0] = (pass == 0) ? 1f : 0f;
84 ret[1] = (pass == 1) ? 1f : 0f;
85 try {
86 transform.inverseDeltaTransform(ret, 0, ret, 0, 1);
87 ps = (float) Math.hypot(ret[0], ret[1]);
88 } catch (NoninvertibleTransformException e) {
89 ps = 0f;
90 }
91 }
92 float xoff = (pass == 0) ? ps / srcnativedimensions.width : 0f;
93 float yoff = (pass == 1) ? ps / srcnativedimensions.height : 0f;
94 int ksize = getScaledKernelSize(pass);
95 int center = ksize / 2;
96 ret[0] = xoff;
97 ret[1] = yoff;
98 ret[2] = -center * xoff;
99 ret[3] = -center * yoff;
100 return ret;
101 }
102 }
|
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 package com.sun.scenario.effect.impl.state;
27
28 import com.sun.javafx.geom.Rectangle;
29
30 /**
31 * An abstract helper intermediate implementation class for
32 * {@code LinearConvolve} effects that break down into a horizontal and
33 * a vertical pass.
34 */
35 public abstract class HVSeparableKernel extends LinearConvolveKernel {
36 @Override
37 public final Rectangle getResultBounds(Rectangle srcdimension, int pass) {
38 int ksize = getKernelSize(pass);
39 Rectangle ret = new Rectangle(srcdimension);
40 if (pass == 0) {
41 ret.grow(ksize/2, 0);
42 } else {
43 ret.grow(0, ksize/2);
44 }
45 return ret;
46 }
47 }
|