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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).
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25 
26 package com.sun.media.sound;
27 
28 /**
29  * A resampler that uses 0-order (nearest-neighbor) interpolation.
30  *
31  * @author Karl Helgason
32  */
33 public final class SoftPointResampler extends SoftAbstractResampler {
34 
35     @Override
getPadding()36     public int getPadding() {
37         return 100;
38     }
39 
40     @Override
interpolate(float[] in, float[] in_offset, float in_end, float[] startpitch, float pitchstep, float[] out, int[] out_offset, int out_end)41     public void interpolate(float[] in, float[] in_offset, float in_end,
42                             float[] startpitch, float pitchstep, float[] out, int[] out_offset,
43                             int out_end) {
44         float pitch = startpitch[0];
45         float ix = in_offset[0];
46         int ox = out_offset[0];
47         float ix_end = in_end;
48         float ox_end = out_end;
49         if (pitchstep == 0) {
50             while (ix < ix_end && ox < ox_end) {
51                 out[ox++] = in[(int) ix];
52                 ix += pitch;
53             }
54         } else {
55             while (ix < ix_end && ox < ox_end) {
56                 out[ox++] = in[(int) ix];
57                 ix += pitch;
58                 pitch += pitchstep;
59             }
60         }
61         in_offset[0] = ix;
62         out_offset[0] = ox;
63         startpitch[0] = pitch;
64     }
65 }
66