2 * 11/19/04 1.0 moved to LGPL.
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4 * 04/01/00 Fixes for running under build 23xx Microsoft JVM. mdm.
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6 * 19/12/99 Performance improvements to compute_pcm_samples().
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7 * Mat McGowan. mdm@techie.com.
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9 * 16/02/99 Java Conversion by E.B , javalayer@javazoom.net
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11 * @(#) synthesis_filter.h 1.8, last edit: 6/15/94 16:52:00
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12 * @(#) Copyright (C) 1993, 1994 Tobias Bading (bading@cs.tu-berlin.de)
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13 * @(#) Berlin University of Technology
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15 *-----------------------------------------------------------------------
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16 * This program is free software; you can redistribute it and/or modify
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17 * it under the terms of the GNU Library General Public License as published
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18 * by the Free Software Foundation; either version 2 of the License, or
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19 * (at your option) any later version.
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21 * This program is distributed in the hope that it will be useful,
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22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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24 * GNU Library General Public License for more details.
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26 * You should have received a copy of the GNU Library General Public
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27 * License along with this program; if not, write to the Free Software
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28 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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29 *----------------------------------------------------------------------
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33 * A class for the synthesis filter bank. This class does a fast downsampling
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34 * from 32, 44.1 or 48 kHz to 8 kHz, if ULAW is defined. Frequencies above 4 kHz
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35 * are removed by ignoring higher subbands.
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37 final class SynthesisFilter {
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38 private int vcount = 0;
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39 private int vidx = 1;
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42 // private float[] actual_v; // v1 or v2
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43 private int actual_write_pos; // 0-15
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44 private float[] samples; // 32 new subband samples
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45 private int channel;
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46 private float scalefactor;
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50 * Quality value for controlling CPU usage/quality tradeoff.
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53 * private int quality;
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55 * private int v_inc;
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59 * public static final int HIGH_QUALITY = 1; public static final int
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60 * MEDIUM_QUALITY = 2; public static final int LOW_QUALITY = 4;
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64 * Contructor. The scalefactor scales the calculated float pcm samples to
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65 * short values (raw pcm samples are in [-1.0, 1.0], if no violations occur).
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67 public SynthesisFilter(int channelnumber, float factor, float[] eq0) {
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69 d16 = splitArray(d, 16);
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71 v1 = new float[512];
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72 v2 = new float[512];
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73 samples = new float[32];
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74 channel = channelnumber;
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75 scalefactor = factor;
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77 // setQuality(HIGH_QUALITY);
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81 for (int i = 0; i < 32; i++)
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84 if (eq.length < 32) {
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85 throw new IllegalArgumentException("eq0");
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90 for (int p = 0; p < 512; p++)
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91 v1[p] = v2[p] = 0.0f;
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93 for (int p2 = 0; p2 < 32; p2++)
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97 actual_write_pos = 15;
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102 * private void setQuality(int quality0) { switch (quality0) { case
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103 * HIGH_QUALITY: case MEDIUM_QUALITY: case LOW_QUALITY: v_inc = 16 * quality0;
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104 * quality = quality0; break; default : throw new
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105 * IllegalArgumentException("Unknown quality value"); } }
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107 * public int getQuality() { return quality; }
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111 * Reset the synthesis filter.
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113 public void reset() {
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115 // float[] floatp2;
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117 // initialize v1[] and v2[]:
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118 // for (floatp = v1 + 512, floatp2 = v2 + 512; floatp > v1; )
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119 // *--floatp = *--floatp2 = 0.0;
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120 for (int p = 0; p < 512; p++)
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121 v1[p] = v2[p] = 0.0f;
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123 // initialize samples[]:
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124 // for (floatp = samples + 32; floatp > samples; )
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125 // *--floatp = 0.0;
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126 for (int p2 = 0; p2 < 32; p2++)
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127 samples[p2] = 0.0f;
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130 actual_write_pos = 15;
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136 public void input_sample(float sample, int subbandnumber) {
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137 samples[subbandnumber] = eq[subbandnumber] * sample;
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140 public void input_samples(float[] s) {
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141 for (int i = 31; i >= 0; i--) {
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142 samples[i] = s[i] * eq[i];
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146 private void compute_new_v2_v1() {
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148 float new_v0, new_v1, new_v2, new_v3, new_v4, new_v5, new_v6, new_v7, new_v8, new_v9;
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149 float new_v10, new_v11, new_v12, new_v13, new_v14, new_v15, new_v16, new_v17, new_v18, new_v19;
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150 float new_v20, new_v21, new_v22, new_v23, new_v24, new_v25, new_v26, new_v27, new_v28, new_v29;
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151 float new_v30, new_v31;
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187 // float[] new_v = new float[32]; // new V[0-15] and V[33-48] of Figure
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188 // 3-A.2 in ISO DIS 11172-3
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189 // float[] p = new float[16];
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190 // float[] pp = new float[16];
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192 // float[] s = samples;
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194 float s0 = samples[0];
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195 float s1 = samples[1];
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196 float s2 = samples[2];
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197 float s3 = samples[3];
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198 float s4 = samples[4];
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199 float s5 = samples[5];
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200 float s6 = samples[6];
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201 float s7 = samples[7];
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202 float s8 = samples[8];
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203 float s9 = samples[9];
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204 float s10 = samples[10];
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205 float s11 = samples[11];
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206 float s12 = samples[12];
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207 float s13 = samples[13];
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208 float s14 = samples[14];
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209 float s15 = samples[15];
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210 float s16 = samples[16];
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211 float s17 = samples[17];
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212 float s18 = samples[18];
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213 float s19 = samples[19];
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214 float s20 = samples[20];
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215 float s21 = samples[21];
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216 float s22 = samples[22];
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217 float s23 = samples[23];
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218 float s24 = samples[24];
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219 float s25 = samples[25];
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220 float s26 = samples[26];
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221 float s27 = samples[27];
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222 float s28 = samples[28];
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223 float s29 = samples[29];
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224 float s30 = samples[30];
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225 float s31 = samples[31];
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227 float p0 = s0 + s31;
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228 float p1 = s1 + s30;
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229 float p2 = s2 + s29;
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230 float p3 = s3 + s28;
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231 float p4 = s4 + s27;
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232 float p5 = s5 + s26;
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233 float p6 = s6 + s25;
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234 float p7 = s7 + s24;
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235 float p8 = s8 + s23;
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236 float p9 = s9 + s22;
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237 float p10 = s10 + s21;
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238 float p11 = s11 + s20;
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239 float p12 = s12 + s19;
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240 float p13 = s13 + s18;
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241 float p14 = s14 + s17;
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242 float p15 = s15 + s16;
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244 float pp0 = p0 + p15;
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245 float pp1 = p1 + p14;
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246 float pp2 = p2 + p13;
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247 float pp3 = p3 + p12;
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248 float pp4 = p4 + p11;
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249 float pp5 = p5 + p10;
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250 float pp6 = p6 + p9;
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251 float pp7 = p7 + p8;
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252 float pp8 = (p0 - p15) * cos1_32;
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253 float pp9 = (p1 - p14) * cos3_32;
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254 float pp10 = (p2 - p13) * cos5_32;
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255 float pp11 = (p3 - p12) * cos7_32;
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256 float pp12 = (p4 - p11) * cos9_32;
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257 float pp13 = (p5 - p10) * cos11_32;
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258 float pp14 = (p6 - p9) * cos13_32;
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259 float pp15 = (p7 - p8) * cos15_32;
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265 p4 = (pp0 - pp7) * cos1_16;
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266 p5 = (pp1 - pp6) * cos3_16;
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267 p6 = (pp2 - pp5) * cos5_16;
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268 p7 = (pp3 - pp4) * cos7_16;
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273 p12 = (pp8 - pp15) * cos1_16;
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274 p13 = (pp9 - pp14) * cos3_16;
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275 p14 = (pp10 - pp13) * cos5_16;
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276 p15 = (pp11 - pp12) * cos7_16;
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280 pp2 = (p0 - p3) * cos1_8;
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281 pp3 = (p1 - p2) * cos3_8;
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284 pp6 = (p4 - p7) * cos1_8;
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285 pp7 = (p5 - p6) * cos3_8;
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288 pp10 = (p8 - p11) * cos1_8;
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289 pp11 = (p9 - p10) * cos3_8;
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292 pp14 = (p12 - p15) * cos1_8;
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293 pp15 = (p13 - p14) * cos3_8;
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296 p1 = (pp0 - pp1) * cos1_4;
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298 p3 = (pp2 - pp3) * cos1_4;
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300 p5 = (pp4 - pp5) * cos1_4;
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302 p7 = (pp6 - pp7) * cos1_4;
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304 p9 = (pp8 - pp9) * cos1_4;
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306 p11 = (pp10 - pp11) * cos1_4;
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308 p13 = (pp12 - pp13) * cos1_4;
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310 p15 = (pp14 - pp15) * cos1_4;
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312 // this is pretty insane coding
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314 new_v19/* 36-17 */= -(new_v4 = (new_v12 = p7) + p5) - p6;
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315 new_v27/* 44-17 */= -p6 - p7 - p4;
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316 new_v6 = (new_v10 = (new_v14 = p15) + p11) + p13;
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317 new_v17/* 34-17 */= -(new_v2 = p15 + p13 + p9) - p14;
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318 new_v21/* 38-17 */= (tmp1 = -p14 - p15 - p10 - p11) - p13;
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319 new_v29/* 46-17 */= -p14 - p15 - p12 - p8;
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320 new_v25/* 42-17 */= tmp1 - p12;
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321 new_v31/* 48-17 */= -p0;
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323 new_v23/* 40-17 */= -(new_v8 = p3) - p2;
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325 p0 = (s0 - s31) * cos1_64;
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326 p1 = (s1 - s30) * cos3_64;
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327 p2 = (s2 - s29) * cos5_64;
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328 p3 = (s3 - s28) * cos7_64;
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329 p4 = (s4 - s27) * cos9_64;
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330 p5 = (s5 - s26) * cos11_64;
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331 p6 = (s6 - s25) * cos13_64;
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332 p7 = (s7 - s24) * cos15_64;
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333 p8 = (s8 - s23) * cos17_64;
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334 p9 = (s9 - s22) * cos19_64;
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335 p10 = (s10 - s21) * cos21_64;
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336 p11 = (s11 - s20) * cos23_64;
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337 p12 = (s12 - s19) * cos25_64;
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338 p13 = (s13 - s18) * cos27_64;
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339 p14 = (s14 - s17) * cos29_64;
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340 p15 = (s15 - s16) * cos31_64;
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350 pp8 = (p0 - p15) * cos1_32;
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351 pp9 = (p1 - p14) * cos3_32;
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352 pp10 = (p2 - p13) * cos5_32;
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353 pp11 = (p3 - p12) * cos7_32;
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354 pp12 = (p4 - p11) * cos9_32;
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355 pp13 = (p5 - p10) * cos11_32;
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356 pp14 = (p6 - p9) * cos13_32;
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357 pp15 = (p7 - p8) * cos15_32;
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363 p4 = (pp0 - pp7) * cos1_16;
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364 p5 = (pp1 - pp6) * cos3_16;
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365 p6 = (pp2 - pp5) * cos5_16;
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366 p7 = (pp3 - pp4) * cos7_16;
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371 p12 = (pp8 - pp15) * cos1_16;
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372 p13 = (pp9 - pp14) * cos3_16;
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373 p14 = (pp10 - pp13) * cos5_16;
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374 p15 = (pp11 - pp12) * cos7_16;
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378 pp2 = (p0 - p3) * cos1_8;
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379 pp3 = (p1 - p2) * cos3_8;
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382 pp6 = (p4 - p7) * cos1_8;
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383 pp7 = (p5 - p6) * cos3_8;
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386 pp10 = (p8 - p11) * cos1_8;
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387 pp11 = (p9 - p10) * cos3_8;
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390 pp14 = (p12 - p15) * cos1_8;
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391 pp15 = (p13 - p14) * cos3_8;
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394 p1 = (pp0 - pp1) * cos1_4;
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396 p3 = (pp2 - pp3) * cos1_4;
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398 p5 = (pp4 - pp5) * cos1_4;
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400 p7 = (pp6 - pp7) * cos1_4;
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402 p9 = (pp8 - pp9) * cos1_4;
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404 p11 = (pp10 - pp11) * cos1_4;
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406 p13 = (pp12 - pp13) * cos1_4;
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408 p15 = (pp14 - pp15) * cos1_4;
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410 // manually doing something that a compiler should handle sucks
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411 // coding like this is hard to read
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413 new_v5 = (new_v11 = (new_v13 = (new_v15 = p15) + p7) + p11) + p5 + p13;
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414 new_v7 = (new_v9 = p15 + p11 + p3) + p13;
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415 new_v16/* 33-17 */= -(new_v1 = (tmp1 = p13 + p15 + p9) + p1) - p14;
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416 new_v18/* 35-17 */= -(new_v3 = tmp1 + p5 + p7) - p6 - p14;
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418 new_v22/* 39-17 */= (tmp1 = -p10 - p11 - p14 - p15) - p13 - p2 - p3;
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419 new_v20/* 37-17 */= tmp1 - p13 - p5 - p6 - p7;
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420 new_v24/* 41-17 */= tmp1 - p12 - p2 - p3;
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421 new_v26/* 43-17 */= tmp1 - p12 - (tmp2 = p4 + p6 + p7);
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422 new_v30/* 47-17 */= (tmp1 = -p8 - p12 - p14 - p15) - p0;
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423 new_v28/* 45-17 */= tmp1 - tmp2;
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425 // insert V[0-15] (== new_v[0-15]) into actual v:
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426 // float[] x2 = actual_v + actual_write_pos;
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427 // float dest[] = actual_v; v2
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429 int pos = actual_write_pos;
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431 v2[0 + pos] = new_v0;
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432 v2[16 + pos] = new_v1;
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433 v2[32 + pos] = new_v2;
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434 v2[48 + pos] = new_v3;
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435 v2[64 + pos] = new_v4;
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436 v2[80 + pos] = new_v5;
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437 v2[96 + pos] = new_v6;
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438 v2[112 + pos] = new_v7;
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439 v2[128 + pos] = new_v8;
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440 v2[144 + pos] = new_v9;
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441 v2[160 + pos] = new_v10;
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442 v2[176 + pos] = new_v11;
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443 v2[192 + pos] = new_v12;
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444 v2[208 + pos] = new_v13;
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445 v2[224 + pos] = new_v14;
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446 v2[240 + pos] = new_v15;
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448 // V[16] is always 0.0:
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449 v2[256 + pos] = 0.0f;
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451 // insert V[17-31] (== -new_v[15-1]) into actual v:
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452 v2[272 + pos] = -new_v15;
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453 v2[288 + pos] = -new_v14;
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454 v2[304 + pos] = -new_v13;
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455 v2[320 + pos] = -new_v12;
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456 v2[336 + pos] = -new_v11;
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457 v2[352 + pos] = -new_v10;
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458 v2[368 + pos] = -new_v9;
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459 v2[384 + pos] = -new_v8;
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460 v2[400 + pos] = -new_v7;
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461 v2[416 + pos] = -new_v6;
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462 v2[432 + pos] = -new_v5;
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463 v2[448 + pos] = -new_v4;
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464 v2[464 + pos] = -new_v3;
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465 v2[480 + pos] = -new_v2;
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466 v2[496 + pos] = -new_v1;
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468 // insert V[32] (== -new_v[0]) into other v:
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469 // dest = (actual_v == v1) ? v2 : v1;
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471 v1[0 + pos] = -new_v0;
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472 // insert V[33-48] (== new_v[16-31]) into other v:
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473 v1[16 + pos] = new_v16;
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474 v1[32 + pos] = new_v17;
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475 v1[48 + pos] = new_v18;
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476 v1[64 + pos] = new_v19;
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477 v1[80 + pos] = new_v20;
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478 v1[96 + pos] = new_v21;
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479 v1[112 + pos] = new_v22;
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480 v1[128 + pos] = new_v23;
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481 v1[144 + pos] = new_v24;
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482 v1[160 + pos] = new_v25;
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483 v1[176 + pos] = new_v26;
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484 v1[192 + pos] = new_v27;
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485 v1[208 + pos] = new_v28;
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486 v1[224 + pos] = new_v29;
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487 v1[240 + pos] = new_v30;
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488 v1[256 + pos] = new_v31;
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490 // insert V[49-63] (== new_v[30-16]) into other v:
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491 v1[272 + pos] = new_v30;
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492 v1[288 + pos] = new_v29;
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493 v1[304 + pos] = new_v28;
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494 v1[320 + pos] = new_v27;
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495 v1[336 + pos] = new_v26;
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496 v1[352 + pos] = new_v25;
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497 v1[368 + pos] = new_v24;
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498 v1[384 + pos] = new_v23;
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499 v1[400 + pos] = new_v22;
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500 v1[416 + pos] = new_v21;
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501 v1[432 + pos] = new_v20;
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502 v1[448 + pos] = new_v19;
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503 v1[464 + pos] = new_v18;
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504 v1[480 + pos] = new_v17;
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505 v1[496 + pos] = new_v16;
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508 private void compute_new_v1_v2() {
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510 float new_v0, new_v1, new_v2, new_v3, new_v4, new_v5, new_v6, new_v7, new_v8, new_v9;
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511 float new_v10, new_v11, new_v12, new_v13, new_v14, new_v15, new_v16, new_v17, new_v18, new_v19;
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512 float new_v20, new_v21, new_v22, new_v23, new_v24, new_v25, new_v26, new_v27, new_v28, new_v29;
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513 float new_v30, new_v31;
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549 // float[] new_v = new float[32]; // new V[0-15] and V[33-48] of Figure
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550 // 3-A.2 in ISO DIS 11172-3
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551 // float[] p = new float[16];
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552 // float[] pp = new float[16];
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554 // float[] s = samples;
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556 float s0 = samples[0];
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557 float s1 = samples[1];
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558 float s2 = samples[2];
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559 float s3 = samples[3];
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560 float s4 = samples[4];
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561 float s5 = samples[5];
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562 float s6 = samples[6];
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563 float s7 = samples[7];
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564 float s8 = samples[8];
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565 float s9 = samples[9];
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566 float s10 = samples[10];
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567 float s11 = samples[11];
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568 float s12 = samples[12];
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569 float s13 = samples[13];
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570 float s14 = samples[14];
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571 float s15 = samples[15];
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572 float s16 = samples[16];
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573 float s17 = samples[17];
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574 float s18 = samples[18];
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575 float s19 = samples[19];
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576 float s20 = samples[20];
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577 float s21 = samples[21];
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578 float s22 = samples[22];
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579 float s23 = samples[23];
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580 float s24 = samples[24];
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581 float s25 = samples[25];
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582 float s26 = samples[26];
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583 float s27 = samples[27];
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584 float s28 = samples[28];
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585 float s29 = samples[29];
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586 float s30 = samples[30];
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587 float s31 = samples[31];
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589 float p0 = s0 + s31;
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590 float p1 = s1 + s30;
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591 float p2 = s2 + s29;
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592 float p3 = s3 + s28;
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593 float p4 = s4 + s27;
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594 float p5 = s5 + s26;
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595 float p6 = s6 + s25;
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596 float p7 = s7 + s24;
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597 float p8 = s8 + s23;
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598 float p9 = s9 + s22;
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599 float p10 = s10 + s21;
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600 float p11 = s11 + s20;
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601 float p12 = s12 + s19;
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602 float p13 = s13 + s18;
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603 float p14 = s14 + s17;
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604 float p15 = s15 + s16;
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606 float pp0 = p0 + p15;
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607 float pp1 = p1 + p14;
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608 float pp2 = p2 + p13;
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609 float pp3 = p3 + p12;
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610 float pp4 = p4 + p11;
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611 float pp5 = p5 + p10;
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612 float pp6 = p6 + p9;
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613 float pp7 = p7 + p8;
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614 float pp8 = (p0 - p15) * cos1_32;
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615 float pp9 = (p1 - p14) * cos3_32;
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616 float pp10 = (p2 - p13) * cos5_32;
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617 float pp11 = (p3 - p12) * cos7_32;
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618 float pp12 = (p4 - p11) * cos9_32;
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619 float pp13 = (p5 - p10) * cos11_32;
\r
620 float pp14 = (p6 - p9) * cos13_32;
\r
621 float pp15 = (p7 - p8) * cos15_32;
\r
627 p4 = (pp0 - pp7) * cos1_16;
\r
628 p5 = (pp1 - pp6) * cos3_16;
\r
629 p6 = (pp2 - pp5) * cos5_16;
\r
630 p7 = (pp3 - pp4) * cos7_16;
\r
635 p12 = (pp8 - pp15) * cos1_16;
\r
636 p13 = (pp9 - pp14) * cos3_16;
\r
637 p14 = (pp10 - pp13) * cos5_16;
\r
638 p15 = (pp11 - pp12) * cos7_16;
\r
642 pp2 = (p0 - p3) * cos1_8;
\r
643 pp3 = (p1 - p2) * cos3_8;
\r
646 pp6 = (p4 - p7) * cos1_8;
\r
647 pp7 = (p5 - p6) * cos3_8;
\r
650 pp10 = (p8 - p11) * cos1_8;
\r
651 pp11 = (p9 - p10) * cos3_8;
\r
654 pp14 = (p12 - p15) * cos1_8;
\r
655 pp15 = (p13 - p14) * cos3_8;
\r
658 p1 = (pp0 - pp1) * cos1_4;
\r
660 p3 = (pp2 - pp3) * cos1_4;
\r
662 p5 = (pp4 - pp5) * cos1_4;
\r
664 p7 = (pp6 - pp7) * cos1_4;
\r
666 p9 = (pp8 - pp9) * cos1_4;
\r
668 p11 = (pp10 - pp11) * cos1_4;
\r
670 p13 = (pp12 - pp13) * cos1_4;
\r
672 p15 = (pp14 - pp15) * cos1_4;
\r
674 // this is pretty insane coding
\r
676 new_v19/* 36-17 */= -(new_v4 = (new_v12 = p7) + p5) - p6;
\r
677 new_v27/* 44-17 */= -p6 - p7 - p4;
\r
678 new_v6 = (new_v10 = (new_v14 = p15) + p11) + p13;
\r
679 new_v17/* 34-17 */= -(new_v2 = p15 + p13 + p9) - p14;
\r
680 new_v21/* 38-17 */= (tmp1 = -p14 - p15 - p10 - p11) - p13;
\r
681 new_v29/* 46-17 */= -p14 - p15 - p12 - p8;
\r
682 new_v25/* 42-17 */= tmp1 - p12;
\r
683 new_v31/* 48-17 */= -p0;
\r
685 new_v23/* 40-17 */= -(new_v8 = p3) - p2;
\r
687 p0 = (s0 - s31) * cos1_64;
\r
688 p1 = (s1 - s30) * cos3_64;
\r
689 p2 = (s2 - s29) * cos5_64;
\r
690 p3 = (s3 - s28) * cos7_64;
\r
691 p4 = (s4 - s27) * cos9_64;
\r
692 p5 = (s5 - s26) * cos11_64;
\r
693 p6 = (s6 - s25) * cos13_64;
\r
694 p7 = (s7 - s24) * cos15_64;
\r
695 p8 = (s8 - s23) * cos17_64;
\r
696 p9 = (s9 - s22) * cos19_64;
\r
697 p10 = (s10 - s21) * cos21_64;
\r
698 p11 = (s11 - s20) * cos23_64;
\r
699 p12 = (s12 - s19) * cos25_64;
\r
700 p13 = (s13 - s18) * cos27_64;
\r
701 p14 = (s14 - s17) * cos29_64;
\r
702 p15 = (s15 - s16) * cos31_64;
\r
712 pp8 = (p0 - p15) * cos1_32;
\r
713 pp9 = (p1 - p14) * cos3_32;
\r
714 pp10 = (p2 - p13) * cos5_32;
\r
715 pp11 = (p3 - p12) * cos7_32;
\r
716 pp12 = (p4 - p11) * cos9_32;
\r
717 pp13 = (p5 - p10) * cos11_32;
\r
718 pp14 = (p6 - p9) * cos13_32;
\r
719 pp15 = (p7 - p8) * cos15_32;
\r
725 p4 = (pp0 - pp7) * cos1_16;
\r
726 p5 = (pp1 - pp6) * cos3_16;
\r
727 p6 = (pp2 - pp5) * cos5_16;
\r
728 p7 = (pp3 - pp4) * cos7_16;
\r
733 p12 = (pp8 - pp15) * cos1_16;
\r
734 p13 = (pp9 - pp14) * cos3_16;
\r
735 p14 = (pp10 - pp13) * cos5_16;
\r
736 p15 = (pp11 - pp12) * cos7_16;
\r
740 pp2 = (p0 - p3) * cos1_8;
\r
741 pp3 = (p1 - p2) * cos3_8;
\r
744 pp6 = (p4 - p7) * cos1_8;
\r
745 pp7 = (p5 - p6) * cos3_8;
\r
748 pp10 = (p8 - p11) * cos1_8;
\r
749 pp11 = (p9 - p10) * cos3_8;
\r
752 pp14 = (p12 - p15) * cos1_8;
\r
753 pp15 = (p13 - p14) * cos3_8;
\r
756 p1 = (pp0 - pp1) * cos1_4;
\r
758 p3 = (pp2 - pp3) * cos1_4;
\r
760 p5 = (pp4 - pp5) * cos1_4;
\r
762 p7 = (pp6 - pp7) * cos1_4;
\r
764 p9 = (pp8 - pp9) * cos1_4;
\r
766 p11 = (pp10 - pp11) * cos1_4;
\r
768 p13 = (pp12 - pp13) * cos1_4;
\r
770 p15 = (pp14 - pp15) * cos1_4;
\r
772 // manually doing something that a compiler should handle sucks
\r
773 // coding like this is hard to read
\r
775 new_v5 = (new_v11 = (new_v13 = (new_v15 = p15) + p7) + p11) + p5 + p13;
\r
776 new_v7 = (new_v9 = p15 + p11 + p3) + p13;
\r
777 new_v16/* 33-17 */= -(new_v1 = (tmp1 = p13 + p15 + p9) + p1) - p14;
\r
778 new_v18/* 35-17 */= -(new_v3 = tmp1 + p5 + p7) - p6 - p14;
\r
780 new_v22/* 39-17 */= (tmp1 = -p10 - p11 - p14 - p15) - p13 - p2 - p3;
\r
781 new_v20/* 37-17 */= tmp1 - p13 - p5 - p6 - p7;
\r
782 new_v24/* 41-17 */= tmp1 - p12 - p2 - p3;
\r
783 new_v26/* 43-17 */= tmp1 - p12 - (tmp2 = p4 + p6 + p7);
\r
784 new_v30/* 47-17 */= (tmp1 = -p8 - p12 - p14 - p15) - p0;
\r
785 new_v28/* 45-17 */= tmp1 - tmp2;
\r
787 // insert V[0-15] (== new_v[0-15]) into actual v:
\r
788 // float[] x2 = actual_v + actual_write_pos;
\r
789 // float dest[] = actual_v; actual_v=v1;
\r
791 int pos = actual_write_pos;
\r
793 v1[0 + pos] = new_v0;
\r
794 v1[16 + pos] = new_v1;
\r
795 v1[32 + pos] = new_v2;
\r
796 v1[48 + pos] = new_v3;
\r
797 v1[64 + pos] = new_v4;
\r
798 v1[80 + pos] = new_v5;
\r
799 v1[96 + pos] = new_v6;
\r
800 v1[112 + pos] = new_v7;
\r
801 v1[128 + pos] = new_v8;
\r
802 v1[144 + pos] = new_v9;
\r
803 v1[160 + pos] = new_v10;
\r
804 v1[176 + pos] = new_v11;
\r
805 v1[192 + pos] = new_v12;
\r
806 v1[208 + pos] = new_v13;
\r
807 v1[224 + pos] = new_v14;
\r
808 v1[240 + pos] = new_v15;
\r
810 // V[16] is always 0.0:
\r
811 v1[256 + pos] = 0.0f;
\r
813 // insert V[17-31] (== -new_v[15-1]) into actual v:
\r
814 v1[272 + pos] = -new_v15;
\r
815 v1[288 + pos] = -new_v14;
\r
816 v1[304 + pos] = -new_v13;
\r
817 v1[320 + pos] = -new_v12;
\r
818 v1[336 + pos] = -new_v11;
\r
819 v1[352 + pos] = -new_v10;
\r
820 v1[368 + pos] = -new_v9;
\r
821 v1[384 + pos] = -new_v8;
\r
822 v1[400 + pos] = -new_v7;
\r
823 v1[416 + pos] = -new_v6;
\r
824 v1[432 + pos] = -new_v5;
\r
825 v1[448 + pos] = -new_v4;
\r
826 v1[464 + pos] = -new_v3;
\r
827 v1[480 + pos] = -new_v2;
\r
828 v1[496 + pos] = -new_v1;
\r
830 // insert V[32] (== -new_v[0]) into other v:
\r
831 // dest = (actual_v == v1) ? v2 : v1;
\r
833 v2[0 + pos] = -new_v0;
\r
834 // insert V[33-48] (== new_v[16-31]) into other v:
\r
835 v2[16 + pos] = new_v16;
\r
836 v2[32 + pos] = new_v17;
\r
837 v2[48 + pos] = new_v18;
\r
838 v2[64 + pos] = new_v19;
\r
839 v2[80 + pos] = new_v20;
\r
840 v2[96 + pos] = new_v21;
\r
841 v2[112 + pos] = new_v22;
\r
842 v2[128 + pos] = new_v23;
\r
843 v2[144 + pos] = new_v24;
\r
844 v2[160 + pos] = new_v25;
\r
845 v2[176 + pos] = new_v26;
\r
846 v2[192 + pos] = new_v27;
\r
847 v2[208 + pos] = new_v28;
\r
848 v2[224 + pos] = new_v29;
\r
849 v2[240 + pos] = new_v30;
\r
850 v2[256 + pos] = new_v31;
\r
852 // insert V[49-63] (== new_v[30-16]) into other v:
\r
853 v2[272 + pos] = new_v30;
\r
854 v2[288 + pos] = new_v29;
\r
855 v2[304 + pos] = new_v28;
\r
856 v2[320 + pos] = new_v27;
\r
857 v2[336 + pos] = new_v26;
\r
858 v2[352 + pos] = new_v25;
\r
859 v2[368 + pos] = new_v24;
\r
860 v2[384 + pos] = new_v23;
\r
861 v2[400 + pos] = new_v22;
\r
862 v2[416 + pos] = new_v21;
\r
863 v2[432 + pos] = new_v20;
\r
864 v2[448 + pos] = new_v19;
\r
865 v2[464 + pos] = new_v18;
\r
866 v2[480 + pos] = new_v17;
\r
867 v2[496 + pos] = new_v16;
\r
871 * Compute PCM Samples.
\r
874 private float[] _tmpOut = new float[32];
\r
876 private void compute_pcm_samples0() {
\r
879 // final float[] vp = actual_v;
\r
880 // int inc = v_inc;
\r
881 // final float[] tmpOut = _tmpOut;
\r
884 // fat chance of having this loop unroll
\r
885 for (int i = 0; i < 32; i++) {
\r
887 // final float[] dp = d16[i];
\r
889 (float) (((v1[0 + dvp] * d16[i][0]) + (v1[15 + dvp] * d16[i][1])
\r
890 + (v1[14 + dvp] * d16[i][2]) + (v1[13 + dvp] * d16[i][3])
\r
891 + (v1[12 + dvp] * d16[i][4]) + (v1[11 + dvp] * d16[i][5])
\r
892 + (v1[10 + dvp] * d16[i][6]) + (v1[9 + dvp] * d16[i][7])
\r
893 + (v1[8 + dvp] * d16[i][8]) + (v1[7 + dvp] * d16[i][9])
\r
894 + (v1[6 + dvp] * d16[i][10]) + (v1[5 + dvp] * d16[i][11])
\r
895 + (v1[4 + dvp] * d16[i][12]) + (v1[3 + dvp] * d16[i][13])
\r
896 + (v1[2 + dvp] * d16[i][14]) + (v1[1 + dvp] * d16[i][15])) * scalefactor);
\r
898 _tmpOut[i] = pcm_sample;
\r
903 // final float[] vp = actual_v;
\r
904 // int inc = v_inc;
\r
905 // final float[] tmpOut = _tmpOut;
\r
908 // fat chance of having this loop unroll
\r
909 for (int i = 0; i < 32; i++) {
\r
911 // final float[] dp = d16[i];
\r
913 (float) (((v2[0 + dvp] * d16[i][0]) + (v2[15 + dvp] * d16[i][1])
\r
914 + (v2[14 + dvp] * d16[i][2]) + (v2[13 + dvp] * d16[i][3])
\r
915 + (v2[12 + dvp] * d16[i][4]) + (v2[11 + dvp] * d16[i][5])
\r
916 + (v2[10 + dvp] * d16[i][6]) + (v2[9 + dvp] * d16[i][7])
\r
917 + (v2[8 + dvp] * d16[i][8]) + (v2[7 + dvp] * d16[i][9])
\r
918 + (v2[6 + dvp] * d16[i][10]) + (v2[5 + dvp] * d16[i][11])
\r
919 + (v2[4 + dvp] * d16[i][12]) + (v2[3 + dvp] * d16[i][13])
\r
920 + (v2[2 + dvp] * d16[i][14]) + (v2[1 + dvp] * d16[i][15])) * scalefactor);
\r
922 _tmpOut[i] = pcm_sample;
\r
930 private void compute_pcm_samples1() {
\r
933 // final float[] vp = actual_v;
\r
934 // int inc = v_inc;
\r
935 // final float[] tmpOut = _tmpOut;
\r
938 // fat chance of having this loop unroll
\r
939 for (int i = 0; i < 32; i++) {
\r
940 // final float[] dp = d16[i];
\r
944 (float) (((v1[1 + dvp] * d16[i][0]) + (v1[0 + dvp] * d16[i][1])
\r
945 + (v1[15 + dvp] * d16[i][2]) + (v1[14 + dvp] * d16[i][3])
\r
946 + (v1[13 + dvp] * d16[i][4]) + (v1[12 + dvp] * d16[i][5])
\r
947 + (v1[11 + dvp] * d16[i][6]) + (v1[10 + dvp] * d16[i][7])
\r
948 + (v1[9 + dvp] * d16[i][8]) + (v1[8 + dvp] * d16[i][9])
\r
949 + (v1[7 + dvp] * d16[i][10]) + (v1[6 + dvp] * d16[i][11])
\r
950 + (v1[5 + dvp] * d16[i][12]) + (v1[4 + dvp] * d16[i][13])
\r
951 + (v1[3 + dvp] * d16[i][14]) + (v1[2 + dvp] * d16[i][15])) * scalefactor);
\r
953 _tmpOut[i] = pcm_sample;
\r
958 // final float[] vp = actual_v;
\r
959 // int inc = v_inc;
\r
960 // final float[] tmpOut = _tmpOut;
\r
963 // fat chance of having this loop unroll
\r
964 for (int i = 0; i < 32; i++) {
\r
965 // final float[] dp = d16[i];
\r
969 (float) (((v2[1 + dvp] * d16[i][0]) + (v2[0 + dvp] * d16[i][1])
\r
970 + (v2[15 + dvp] * d16[i][2]) + (v2[14 + dvp] * d16[i][3])
\r
971 + (v2[13 + dvp] * d16[i][4]) + (v2[12 + dvp] * d16[i][5])
\r
972 + (v2[11 + dvp] * d16[i][6]) + (v2[10 + dvp] * d16[i][7])
\r
973 + (v2[9 + dvp] * d16[i][8]) + (v2[8 + dvp] * d16[i][9])
\r
974 + (v2[7 + dvp] * d16[i][10]) + (v2[6 + dvp] * d16[i][11])
\r
975 + (v2[5 + dvp] * d16[i][12]) + (v2[4 + dvp] * d16[i][13])
\r
976 + (v2[3 + dvp] * d16[i][14]) + (v2[2 + dvp] * d16[i][15])) * scalefactor);
\r
978 _tmpOut[i] = pcm_sample;
\r
986 private void compute_pcm_samples2() {
\r
989 // final float[] vp = actual_v;
\r
990 // int inc = v_inc;
\r
991 // final float[] tmpOut = _tmpOut;
\r
994 // fat chance of having this loop unroll
\r
995 for (int i = 0; i < 32; i++) {
\r
996 // final float[] dp = d16[i];
\r
1000 (float) (((v1[2 + dvp] * d16[i][0]) + (v1[1 + dvp] * d16[i][1])
\r
1001 + (v1[0 + dvp] * d16[i][2]) + (v1[15 + dvp] * d16[i][3])
\r
1002 + (v1[14 + dvp] * d16[i][4]) + (v1[13 + dvp] * d16[i][5])
\r
1003 + (v1[12 + dvp] * d16[i][6]) + (v1[11 + dvp] * d16[i][7])
\r
1004 + (v1[10 + dvp] * d16[i][8]) + (v1[9 + dvp] * d16[i][9])
\r
1005 + (v1[8 + dvp] * d16[i][10]) + (v1[7 + dvp] * d16[i][11])
\r
1006 + (v1[6 + dvp] * d16[i][12]) + (v1[5 + dvp] * d16[i][13])
\r
1007 + (v1[4 + dvp] * d16[i][14]) + (v1[3 + dvp] * d16[i][15])) * scalefactor);
\r
1009 _tmpOut[i] = pcm_sample;
\r
1014 // final float[] vp = actual_v;
\r
1015 // int inc = v_inc;
\r
1016 // final float[] tmpOut = _tmpOut;
\r
1019 // fat chance of having this loop unroll
\r
1020 for (int i = 0; i < 32; i++) {
\r
1021 // final float[] dp = d16[i];
\r
1025 (float) (((v2[2 + dvp] * d16[i][0]) + (v2[1 + dvp] * d16[i][1])
\r
1026 + (v2[0 + dvp] * d16[i][2]) + (v2[15 + dvp] * d16[i][3])
\r
1027 + (v2[14 + dvp] * d16[i][4]) + (v2[13 + dvp] * d16[i][5])
\r
1028 + (v2[12 + dvp] * d16[i][6]) + (v2[11 + dvp] * d16[i][7])
\r
1029 + (v2[10 + dvp] * d16[i][8]) + (v2[9 + dvp] * d16[i][9])
\r
1030 + (v2[8 + dvp] * d16[i][10]) + (v2[7 + dvp] * d16[i][11])
\r
1031 + (v2[6 + dvp] * d16[i][12]) + (v2[5 + dvp] * d16[i][13])
\r
1032 + (v2[4 + dvp] * d16[i][14]) + (v2[3 + dvp] * d16[i][15])) * scalefactor);
\r
1034 _tmpOut[i] = pcm_sample;
\r
1042 private void compute_pcm_samples3() {
\r
1045 // final float[] vp = actual_v;
\r
1048 // int inc = v_inc;
\r
1049 // final float[] tmpOut = _tmpOut;
\r
1052 // fat chance of having this loop unroll
\r
1053 for (int i = 0; i < 32; i++) {
\r
1054 // final float[] dp = d16[i];
\r
1058 (float) (((v1[3 + dvp] * d16[i][0]) + (v1[2 + dvp] * d16[i][1])
\r
1059 + (v1[1 + dvp] * d16[i][2]) + (v1[0 + dvp] * d16[i][3])
\r
1060 + (v1[15 + dvp] * d16[i][4]) + (v1[14 + dvp] * d16[i][5])
\r
1061 + (v1[13 + dvp] * d16[i][6]) + (v1[12 + dvp] * d16[i][7])
\r
1062 + (v1[11 + dvp] * d16[i][8]) + (v1[10 + dvp] * d16[i][9])
\r
1063 + (v1[9 + dvp] * d16[i][10]) + (v1[8 + dvp] * d16[i][11])
\r
1064 + (v1[7 + dvp] * d16[i][12]) + (v1[6 + dvp] * d16[i][13])
\r
1065 + (v1[5 + dvp] * d16[i][14]) + (v1[4 + dvp] * d16[i][15])) * scalefactor);
\r
1067 _tmpOut[i] = pcm_sample;
\r
1072 // final float[] vp = actual_v;
\r
1075 // int inc = v_inc;
\r
1076 // final float[] tmpOut = _tmpOut;
\r
1079 // fat chance of having this loop unroll
\r
1080 for (int i = 0; i < 32; i++) {
\r
1081 // final float[] dp = d16[i];
\r
1085 (float) (((v2[3 + dvp] * d16[i][0]) + (v2[2 + dvp] * d16[i][1])
\r
1086 + (v2[1 + dvp] * d16[i][2]) + (v2[0 + dvp] * d16[i][3])
\r
1087 + (v2[15 + dvp] * d16[i][4]) + (v2[14 + dvp] * d16[i][5])
\r
1088 + (v2[13 + dvp] * d16[i][6]) + (v2[12 + dvp] * d16[i][7])
\r
1089 + (v2[11 + dvp] * d16[i][8]) + (v2[10 + dvp] * d16[i][9])
\r
1090 + (v2[9 + dvp] * d16[i][10]) + (v2[8 + dvp] * d16[i][11])
\r
1091 + (v2[7 + dvp] * d16[i][12]) + (v2[6 + dvp] * d16[i][13])
\r
1092 + (v2[5 + dvp] * d16[i][14]) + (v2[4 + dvp] * d16[i][15])) * scalefactor);
\r
1094 _tmpOut[i] = pcm_sample;
\r
1102 private void compute_pcm_samples4() {
\r
1105 // final float[] vp = actual_v;
\r
1107 // int inc = v_inc;
\r
1108 // final float[] tmpOut = _tmpOut;
\r
1111 // fat chance of having this loop unroll
\r
1112 for (int i = 0; i < 32; i++) {
\r
1113 // final float[] dp = d16[i];
\r
1117 (float) (((v1[4 + dvp] * d16[i][0]) + (v1[3 + dvp] * d16[i][1])
\r
1118 + (v1[2 + dvp] * d16[i][2]) + (v1[1 + dvp] * d16[i][3]) + (v1[0 + dvp] * d16[i][4])
\r
1119 + (v1[15 + dvp] * d16[i][5]) + (v1[14 + dvp] * d16[i][6])
\r
1120 + (v1[13 + dvp] * d16[i][7]) + (v1[12 + dvp] * d16[i][8])
\r
1121 + (v1[11 + dvp] * d16[i][9]) + (v1[10 + dvp] * d16[i][10])
\r
1122 + (v1[9 + dvp] * d16[i][11]) + (v1[8 + dvp] * d16[i][12])
\r
1123 + (v1[7 + dvp] * d16[i][13]) + (v1[6 + dvp] * d16[i][14]) + (v1[5 + dvp] * d16[i][15])) * scalefactor);
\r
1125 _tmpOut[i] = pcm_sample;
\r
1130 // final float[] vp = actual_v;
\r
1132 // int inc = v_inc;
\r
1133 // final float[] tmpOut = _tmpOut;
\r
1136 // fat chance of having this loop unroll
\r
1137 for (int i = 0; i < 32; i++) {
\r
1138 // final float[] dp = d16[i];
\r
1142 (float) (((v2[4 + dvp] * d16[i][0]) + (v2[3 + dvp] * d16[i][1])
\r
1143 + (v2[2 + dvp] * d16[i][2]) + (v2[1 + dvp] * d16[i][3]) + (v2[0 + dvp] * d16[i][4])
\r
1144 + (v2[15 + dvp] * d16[i][5]) + (v2[14 + dvp] * d16[i][6])
\r
1145 + (v2[13 + dvp] * d16[i][7]) + (v2[12 + dvp] * d16[i][8])
\r
1146 + (v2[11 + dvp] * d16[i][9]) + (v2[10 + dvp] * d16[i][10])
\r
1147 + (v2[9 + dvp] * d16[i][11]) + (v2[8 + dvp] * d16[i][12])
\r
1148 + (v2[7 + dvp] * d16[i][13]) + (v2[6 + dvp] * d16[i][14]) + (v2[5 + dvp] * d16[i][15])) * scalefactor);
\r
1150 _tmpOut[i] = pcm_sample;
\r
1158 private void compute_pcm_samples5() {
\r
1161 // final float[] vp = actual_v;
\r
1163 // int inc = v_inc;
\r
1164 // final float[] tmpOut = _tmpOut;
\r
1167 // fat chance of having this loop unroll
\r
1168 for (int i = 0; i < 32; i++) {
\r
1169 // final float[] dp = d16[i];
\r
1173 (float) (((v1[5 + dvp] * d16[i][0]) + (v1[4 + dvp] * d16[i][1])
\r
1174 + (v1[3 + dvp] * d16[i][2]) + (v1[2 + dvp] * d16[i][3]) + (v1[1 + dvp] * d16[i][4])
\r
1175 + (v1[0 + dvp] * d16[i][5]) + (v1[15 + dvp] * d16[i][6])
\r
1176 + (v1[14 + dvp] * d16[i][7]) + (v1[13 + dvp] * d16[i][8])
\r
1177 + (v1[12 + dvp] * d16[i][9]) + (v1[11 + dvp] * d16[i][10])
\r
1178 + (v1[10 + dvp] * d16[i][11]) + (v1[9 + dvp] * d16[i][12])
\r
1179 + (v1[8 + dvp] * d16[i][13]) + (v1[7 + dvp] * d16[i][14]) + (v1[6 + dvp] * d16[i][15])) * scalefactor);
\r
1181 _tmpOut[i] = pcm_sample;
\r
1186 // final float[] vp = actual_v;
\r
1188 // int inc = v_inc;
\r
1189 // final float[] tmpOut = _tmpOut;
\r
1192 // fat chance of having this loop unroll
\r
1193 for (int i = 0; i < 32; i++) {
\r
1194 // final float[] dp = d16[i];
\r
1198 (float) (((v2[5 + dvp] * d16[i][0]) + (v2[4 + dvp] * d16[i][1])
\r
1199 + (v2[3 + dvp] * d16[i][2]) + (v2[2 + dvp] * d16[i][3]) + (v2[1 + dvp] * d16[i][4])
\r
1200 + (v2[0 + dvp] * d16[i][5]) + (v2[15 + dvp] * d16[i][6])
\r
1201 + (v2[14 + dvp] * d16[i][7]) + (v2[13 + dvp] * d16[i][8])
\r
1202 + (v2[12 + dvp] * d16[i][9]) + (v2[11 + dvp] * d16[i][10])
\r
1203 + (v2[10 + dvp] * d16[i][11]) + (v2[9 + dvp] * d16[i][12])
\r
1204 + (v2[8 + dvp] * d16[i][13]) + (v2[7 + dvp] * d16[i][14]) + (v2[6 + dvp] * d16[i][15])) * scalefactor);
\r
1206 _tmpOut[i] = pcm_sample;
\r
1214 private void compute_pcm_samples6() {
\r
1218 // final float[] vp = actual_v;
\r
1219 // int inc = v_inc;
\r
1220 // final float[] tmpOut = _tmpOut;
\r
1223 // fat chance of having this loop unroll
\r
1224 for (int i = 0; i < 32; i++) {
\r
1225 // final float[] dp = d16[i];
\r
1229 (float) (((v1[6 + dvp] * d16[i][0]) + (v1[5 + dvp] * d16[i][1])
\r
1230 + (v1[4 + dvp] * d16[i][2]) + (v1[3 + dvp] * d16[i][3]) + (v1[2 + dvp] * d16[i][4])
\r
1231 + (v1[1 + dvp] * d16[i][5]) + (v1[0 + dvp] * d16[i][6])
\r
1232 + (v1[15 + dvp] * d16[i][7]) + (v1[14 + dvp] * d16[i][8])
\r
1233 + (v1[13 + dvp] * d16[i][9]) + (v1[12 + dvp] * d16[i][10])
\r
1234 + (v1[11 + dvp] * d16[i][11]) + (v1[10 + dvp] * d16[i][12])
\r
1235 + (v1[9 + dvp] * d16[i][13]) + (v1[8 + dvp] * d16[i][14]) + (v1[7 + dvp] * d16[i][15])) * scalefactor);
\r
1237 _tmpOut[i] = pcm_sample;
\r
1243 // final float[] vp = actual_v;
\r
1244 // int inc = v_inc;
\r
1245 // final float[] tmpOut = _tmpOut;
\r
1248 // fat chance of having this loop unroll
\r
1249 for (int i = 0; i < 32; i++) {
\r
1250 // final float[] dp = d16[i];
\r
1254 (float) (((v2[6 + dvp] * d16[i][0]) + (v2[5 + dvp] * d16[i][1])
\r
1255 + (v2[4 + dvp] * d16[i][2]) + (v2[3 + dvp] * d16[i][3]) + (v2[2 + dvp] * d16[i][4])
\r
1256 + (v2[1 + dvp] * d16[i][5]) + (v2[0 + dvp] * d16[i][6])
\r
1257 + (v2[15 + dvp] * d16[i][7]) + (v2[14 + dvp] * d16[i][8])
\r
1258 + (v2[13 + dvp] * d16[i][9]) + (v2[12 + dvp] * d16[i][10])
\r
1259 + (v2[11 + dvp] * d16[i][11]) + (v2[10 + dvp] * d16[i][12])
\r
1260 + (v2[9 + dvp] * d16[i][13]) + (v2[8 + dvp] * d16[i][14]) + (v2[7 + dvp] * d16[i][15])) * scalefactor);
\r
1262 _tmpOut[i] = pcm_sample;
\r
1270 private void compute_pcm_samples7() {
\r
1273 // final float[] vp = actual_v;
\r
1275 // int inc = v_inc;
\r
1276 // final float[] tmpOut = _tmpOut;
\r
1279 // fat chance of having this loop unroll
\r
1280 for (int i = 0; i < 32; i++) {
\r
1281 // final float[] dp = d16[i];
\r
1285 (float) (((v1[7 + dvp] * d16[i][0]) + (v1[6 + dvp] * d16[i][1])
\r
1286 + (v1[5 + dvp] * d16[i][2]) + (v1[4 + dvp] * d16[i][3]) + (v1[3 + dvp] * d16[i][4])
\r
1287 + (v1[2 + dvp] * d16[i][5]) + (v1[1 + dvp] * d16[i][6]) + (v1[0 + dvp] * d16[i][7])
\r
1288 + (v1[15 + dvp] * d16[i][8]) + (v1[14 + dvp] * d16[i][9])
\r
1289 + (v1[13 + dvp] * d16[i][10]) + (v1[12 + dvp] * d16[i][11])
\r
1290 + (v1[11 + dvp] * d16[i][12]) + (v1[10 + dvp] * d16[i][13])
\r
1291 + (v1[9 + dvp] * d16[i][14]) + (v1[8 + dvp] * d16[i][15])) * scalefactor);
\r
1293 _tmpOut[i] = pcm_sample;
\r
1298 // final float[] vp = actual_v;
\r
1300 // int inc = v_inc;
\r
1301 // final float[] tmpOut = _tmpOut;
\r
1304 // fat chance of having this loop unroll
\r
1305 for (int i = 0; i < 32; i++) {
\r
1306 // final float[] dp = d16[i];
\r
1310 (float) (((v2[7 + dvp] * d16[i][0]) + (v2[6 + dvp] * d16[i][1])
\r
1311 + (v2[5 + dvp] * d16[i][2]) + (v2[4 + dvp] * d16[i][3]) + (v2[3 + dvp] * d16[i][4])
\r
1312 + (v2[2 + dvp] * d16[i][5]) + (v2[1 + dvp] * d16[i][6]) + (v2[0 + dvp] * d16[i][7])
\r
1313 + (v2[15 + dvp] * d16[i][8]) + (v2[14 + dvp] * d16[i][9])
\r
1314 + (v2[13 + dvp] * d16[i][10]) + (v2[12 + dvp] * d16[i][11])
\r
1315 + (v2[11 + dvp] * d16[i][12]) + (v2[10 + dvp] * d16[i][13])
\r
1316 + (v2[9 + dvp] * d16[i][14]) + (v2[8 + dvp] * d16[i][15])) * scalefactor);
\r
1318 _tmpOut[i] = pcm_sample;
\r
1326 private void compute_pcm_samples8() {
\r
1330 // final float[] vp = actual_v;
\r
1332 // int inc = v_inc;
\r
1333 // final float[] tmpOut = _tmpOut;
\r
1336 // fat chance of having this loop unroll
\r
1337 for (int i = 0; i < 32; i++) {
\r
1338 // final float[] dp = d16[i];
\r
1342 (float) (((v1[8 + dvp] * d16[i][0]) + (v1[7 + dvp] * d16[i][1])
\r
1343 + (v1[6 + dvp] * d16[i][2]) + (v1[5 + dvp] * d16[i][3]) + (v1[4 + dvp] * d16[i][4])
\r
1344 + (v1[3 + dvp] * d16[i][5]) + (v1[2 + dvp] * d16[i][6]) + (v1[1 + dvp] * d16[i][7])
\r
1345 + (v1[0 + dvp] * d16[i][8]) + (v1[15 + dvp] * d16[i][9])
\r
1346 + (v1[14 + dvp] * d16[i][10]) + (v1[13 + dvp] * d16[i][11])
\r
1347 + (v1[12 + dvp] * d16[i][12]) + (v1[11 + dvp] * d16[i][13])
\r
1348 + (v1[10 + dvp] * d16[i][14]) + (v1[9 + dvp] * d16[i][15])) * scalefactor);
\r
1350 _tmpOut[i] = pcm_sample;
\r
1356 // final float[] vp = actual_v;
\r
1358 // int inc = v_inc;
\r
1359 // final float[] tmpOut = _tmpOut;
\r
1362 // fat chance of having this loop unroll
\r
1363 for (int i = 0; i < 32; i++) {
\r
1364 // final float[] dp = d16[i];
\r
1368 (float) (((v2[8 + dvp] * d16[i][0]) + (v2[7 + dvp] * d16[i][1])
\r
1369 + (v2[6 + dvp] * d16[i][2]) + (v2[5 + dvp] * d16[i][3]) + (v2[4 + dvp] * d16[i][4])
\r
1370 + (v2[3 + dvp] * d16[i][5]) + (v2[2 + dvp] * d16[i][6]) + (v2[1 + dvp] * d16[i][7])
\r
1371 + (v2[0 + dvp] * d16[i][8]) + (v2[15 + dvp] * d16[i][9])
\r
1372 + (v2[14 + dvp] * d16[i][10]) + (v2[13 + dvp] * d16[i][11])
\r
1373 + (v2[12 + dvp] * d16[i][12]) + (v2[11 + dvp] * d16[i][13])
\r
1374 + (v2[10 + dvp] * d16[i][14]) + (v2[9 + dvp] * d16[i][15])) * scalefactor);
\r
1376 _tmpOut[i] = pcm_sample;
\r
1384 private void compute_pcm_samples9() {
\r
1387 // final float[] vp = actual_v;
\r
1389 // int inc = v_inc;
\r
1390 // final float[] tmpOut = _tmpOut;
\r
1393 // fat chance of having this loop unroll
\r
1394 for (int i = 0; i < 32; i++) {
\r
1395 // final float[] dp = d16[i];
\r
1399 (float) (((v1[9 + dvp] * d16[i][0]) + (v1[8 + dvp] * d16[i][1])
\r
1400 + (v1[7 + dvp] * d16[i][2]) + (v1[6 + dvp] * d16[i][3]) + (v1[5 + dvp] * d16[i][4])
\r
1401 + (v1[4 + dvp] * d16[i][5]) + (v1[3 + dvp] * d16[i][6]) + (v1[2 + dvp] * d16[i][7])
\r
1402 + (v1[1 + dvp] * d16[i][8]) + (v1[0 + dvp] * d16[i][9])
\r
1403 + (v1[15 + dvp] * d16[i][10]) + (v1[14 + dvp] * d16[i][11])
\r
1404 + (v1[13 + dvp] * d16[i][12]) + (v1[12 + dvp] * d16[i][13])
\r
1405 + (v1[11 + dvp] * d16[i][14]) + (v1[10 + dvp] * d16[i][15])) * scalefactor);
\r
1407 _tmpOut[i] = pcm_sample;
\r
1412 // final float[] vp = actual_v;
\r
1414 // int inc = v_inc;
\r
1415 // final float[] tmpOut = _tmpOut;
\r
1418 // fat chance of having this loop unroll
\r
1419 for (int i = 0; i < 32; i++) {
\r
1420 // final float[] dp = d16[i];
\r
1424 (float) (((v2[9 + dvp] * d16[i][0]) + (v2[8 + dvp] * d16[i][1])
\r
1425 + (v2[7 + dvp] * d16[i][2]) + (v2[6 + dvp] * d16[i][3]) + (v2[5 + dvp] * d16[i][4])
\r
1426 + (v2[4 + dvp] * d16[i][5]) + (v2[3 + dvp] * d16[i][6]) + (v2[2 + dvp] * d16[i][7])
\r
1427 + (v2[1 + dvp] * d16[i][8]) + (v2[0 + dvp] * d16[i][9])
\r
1428 + (v2[15 + dvp] * d16[i][10]) + (v2[14 + dvp] * d16[i][11])
\r
1429 + (v2[13 + dvp] * d16[i][12]) + (v2[12 + dvp] * d16[i][13])
\r
1430 + (v2[11 + dvp] * d16[i][14]) + (v2[10 + dvp] * d16[i][15])) * scalefactor);
\r
1432 _tmpOut[i] = pcm_sample;
\r
1440 private void compute_pcm_samples10() {
\r
1442 // final float[] vp = actual_v;
\r
1443 // int inc = v_inc;
\r
1444 // final float[] tmpOut = _tmpOut;
\r
1447 // fat chance of having this loop unroll
\r
1448 for (int i = 0; i < 32; i++) {
\r
1449 // final float[] dp = d16[i];
\r
1453 (float) (((v1[10 + dvp] * d16[i][0]) + (v1[9 + dvp] * d16[i][1])
\r
1454 + (v1[8 + dvp] * d16[i][2]) + (v1[7 + dvp] * d16[i][3]) + (v1[6 + dvp] * d16[i][4])
\r
1455 + (v1[5 + dvp] * d16[i][5]) + (v1[4 + dvp] * d16[i][6]) + (v1[3 + dvp] * d16[i][7])
\r
1456 + (v1[2 + dvp] * d16[i][8]) + (v1[1 + dvp] * d16[i][9])
\r
1457 + (v1[0 + dvp] * d16[i][10]) + (v1[15 + dvp] * d16[i][11])
\r
1458 + (v1[14 + dvp] * d16[i][12]) + (v1[13 + dvp] * d16[i][13])
\r
1459 + (v1[12 + dvp] * d16[i][14]) + (v1[11 + dvp] * d16[i][15])) * scalefactor);
\r
1461 _tmpOut[i] = pcm_sample;
\r
1466 // final float[] vp = actual_v;
\r
1467 // int inc = v_inc;
\r
1468 // final float[] tmpOut = _tmpOut;
\r
1471 // fat chance of having this loop unroll
\r
1472 for (int i = 0; i < 32; i++) {
\r
1473 // final float[] dp = d16[i];
\r
1477 (float) (((v2[10 + dvp] * d16[i][0]) + (v2[9 + dvp] * d16[i][1])
\r
1478 + (v2[8 + dvp] * d16[i][2]) + (v2[7 + dvp] * d16[i][3]) + (v2[6 + dvp] * d16[i][4])
\r
1479 + (v2[5 + dvp] * d16[i][5]) + (v2[4 + dvp] * d16[i][6]) + (v2[3 + dvp] * d16[i][7])
\r
1480 + (v2[2 + dvp] * d16[i][8]) + (v2[1 + dvp] * d16[i][9])
\r
1481 + (v2[0 + dvp] * d16[i][10]) + (v2[15 + dvp] * d16[i][11])
\r
1482 + (v2[14 + dvp] * d16[i][12]) + (v2[13 + dvp] * d16[i][13])
\r
1483 + (v2[12 + dvp] * d16[i][14]) + (v2[11 + dvp] * d16[i][15])) * scalefactor);
\r
1485 _tmpOut[i] = pcm_sample;
\r
1493 private void compute_pcm_samples11() {
\r
1496 // final float[] vp = actual_v;
\r
1498 // int inc = v_inc;
\r
1499 // final float[] tmpOut = _tmpOut;
\r
1502 // fat chance of having this loop unroll
\r
1503 for (int i = 0; i < 32; i++) {
\r
1504 // final float[] dp = d16[i];
\r
1508 (float) (((v1[11 + dvp] * d16[i][0]) + (v1[10 + dvp] * d16[i][1])
\r
1509 + (v1[9 + dvp] * d16[i][2]) + (v1[8 + dvp] * d16[i][3]) + (v1[7 + dvp] * d16[i][4])
\r
1510 + (v1[6 + dvp] * d16[i][5]) + (v1[5 + dvp] * d16[i][6]) + (v1[4 + dvp] * d16[i][7])
\r
1511 + (v1[3 + dvp] * d16[i][8]) + (v1[2 + dvp] * d16[i][9])
\r
1512 + (v1[1 + dvp] * d16[i][10]) + (v1[0 + dvp] * d16[i][11])
\r
1513 + (v1[15 + dvp] * d16[i][12]) + (v1[14 + dvp] * d16[i][13])
\r
1514 + (v1[13 + dvp] * d16[i][14]) + (v1[12 + dvp] * d16[i][15])) * scalefactor);
\r
1516 _tmpOut[i] = pcm_sample;
\r
1521 // final float[] vp = actual_v;
\r
1523 // int inc = v_inc;
\r
1524 // final float[] tmpOut = _tmpOut;
\r
1527 // fat chance of having this loop unroll
\r
1528 for (int i = 0; i < 32; i++) {
\r
1529 // final float[] dp = d16[i];
\r
1533 (float) (((v2[11 + dvp] * d16[i][0]) + (v2[10 + dvp] * d16[i][1])
\r
1534 + (v2[9 + dvp] * d16[i][2]) + (v2[8 + dvp] * d16[i][3]) + (v2[7 + dvp] * d16[i][4])
\r
1535 + (v2[6 + dvp] * d16[i][5]) + (v2[5 + dvp] * d16[i][6]) + (v2[4 + dvp] * d16[i][7])
\r
1536 + (v2[3 + dvp] * d16[i][8]) + (v2[2 + dvp] * d16[i][9])
\r
1537 + (v2[1 + dvp] * d16[i][10]) + (v2[0 + dvp] * d16[i][11])
\r
1538 + (v2[15 + dvp] * d16[i][12]) + (v2[14 + dvp] * d16[i][13])
\r
1539 + (v2[13 + dvp] * d16[i][14]) + (v2[12 + dvp] * d16[i][15])) * scalefactor);
\r
1541 _tmpOut[i] = pcm_sample;
\r
1549 private void compute_pcm_samples12() {
\r
1552 // final float[] vp = actual_v;
\r
1553 // int inc = v_inc;
\r
1554 // final float[] tmpOut = _tmpOut;
\r
1557 // fat chance of having this loop unroll
\r
1558 for (int i = 0; i < 32; i++) {
\r
1559 // final float[] dp = d16[i];
\r
1563 (float) (((v1[12 + dvp] * d16[i][0]) + (v1[11 + dvp] * d16[i][1])
\r
1564 + (v1[10 + dvp] * d16[i][2]) + (v1[9 + dvp] * d16[i][3])
\r
1565 + (v1[8 + dvp] * d16[i][4]) + (v1[7 + dvp] * d16[i][5]) + (v1[6 + dvp] * d16[i][6])
\r
1566 + (v1[5 + dvp] * d16[i][7]) + (v1[4 + dvp] * d16[i][8]) + (v1[3 + dvp] * d16[i][9])
\r
1567 + (v1[2 + dvp] * d16[i][10]) + (v1[1 + dvp] * d16[i][11])
\r
1568 + (v1[0 + dvp] * d16[i][12]) + (v1[15 + dvp] * d16[i][13])
\r
1569 + (v1[14 + dvp] * d16[i][14]) + (v1[13 + dvp] * d16[i][15])) * scalefactor);
\r
1571 _tmpOut[i] = pcm_sample;
\r
1576 // final float[] vp = actual_v;
\r
1577 // int inc = v_inc;
\r
1578 // final float[] tmpOut = _tmpOut;
\r
1581 // fat chance of having this loop unroll
\r
1582 for (int i = 0; i < 32; i++) {
\r
1583 // final float[] dp = d16[i];
\r
1587 (float) (((v2[12 + dvp] * d16[i][0]) + (v2[11 + dvp] * d16[i][1])
\r
1588 + (v2[10 + dvp] * d16[i][2]) + (v2[9 + dvp] * d16[i][3])
\r
1589 + (v2[8 + dvp] * d16[i][4]) + (v2[7 + dvp] * d16[i][5]) + (v2[6 + dvp] * d16[i][6])
\r
1590 + (v2[5 + dvp] * d16[i][7]) + (v2[4 + dvp] * d16[i][8]) + (v2[3 + dvp] * d16[i][9])
\r
1591 + (v2[2 + dvp] * d16[i][10]) + (v2[1 + dvp] * d16[i][11])
\r
1592 + (v2[0 + dvp] * d16[i][12]) + (v2[15 + dvp] * d16[i][13])
\r
1593 + (v2[14 + dvp] * d16[i][14]) + (v2[13 + dvp] * d16[i][15])) * scalefactor);
\r
1595 _tmpOut[i] = pcm_sample;
\r
1603 private void compute_pcm_samples13() {
\r
1606 // final float[] vp = actual_v;
\r
1608 // int inc = v_inc;
\r
1609 // final float[] tmpOut = _tmpOut;
\r
1612 // fat chance of having this loop unroll
\r
1613 for (int i = 0; i < 32; i++) {
\r
1614 // final float[] dp = d16[i];
\r
1618 (float) (((v1[13 + dvp] * d16[i][0]) + (v1[12 + dvp] * d16[i][1])
\r
1619 + (v1[11 + dvp] * d16[i][2]) + (v1[10 + dvp] * d16[i][3])
\r
1620 + (v1[9 + dvp] * d16[i][4]) + (v1[8 + dvp] * d16[i][5]) + (v1[7 + dvp] * d16[i][6])
\r
1621 + (v1[6 + dvp] * d16[i][7]) + (v1[5 + dvp] * d16[i][8]) + (v1[4 + dvp] * d16[i][9])
\r
1622 + (v1[3 + dvp] * d16[i][10]) + (v1[2 + dvp] * d16[i][11])
\r
1623 + (v1[1 + dvp] * d16[i][12]) + (v1[0 + dvp] * d16[i][13])
\r
1624 + (v1[15 + dvp] * d16[i][14]) + (v1[14 + dvp] * d16[i][15])) * scalefactor);
\r
1626 _tmpOut[i] = pcm_sample;
\r
1631 // final float[] vp = actual_v;
\r
1633 // int inc = v_inc;
\r
1634 // final float[] tmpOut = _tmpOut;
\r
1637 // fat chance of having this loop unroll
\r
1638 for (int i = 0; i < 32; i++) {
\r
1639 // final float[] dp = d16[i];
\r
1643 (float) (((v2[13 + dvp] * d16[i][0]) + (v2[12 + dvp] * d16[i][1])
\r
1644 + (v2[11 + dvp] * d16[i][2]) + (v2[10 + dvp] * d16[i][3])
\r
1645 + (v2[9 + dvp] * d16[i][4]) + (v2[8 + dvp] * d16[i][5]) + (v2[7 + dvp] * d16[i][6])
\r
1646 + (v2[6 + dvp] * d16[i][7]) + (v2[5 + dvp] * d16[i][8]) + (v2[4 + dvp] * d16[i][9])
\r
1647 + (v2[3 + dvp] * d16[i][10]) + (v2[2 + dvp] * d16[i][11])
\r
1648 + (v2[1 + dvp] * d16[i][12]) + (v2[0 + dvp] * d16[i][13])
\r
1649 + (v2[15 + dvp] * d16[i][14]) + (v2[14 + dvp] * d16[i][15])) * scalefactor);
\r
1651 _tmpOut[i] = pcm_sample;
\r
1659 private void compute_pcm_samples14() {
\r
1662 // final float[] vp = actual_v;
\r
1664 // int inc = v_inc;
\r
1665 // final float[] tmpOut = _tmpOut;
\r
1668 // fat chance of having this loop unroll
\r
1669 for (int i = 0; i < 32; i++) {
\r
1670 // final float[] dp = d16[i];
\r
1674 (float) (((v1[14 + dvp] * d16[i][0]) + (v1[13 + dvp] * d16[i][1])
\r
1675 + (v1[12 + dvp] * d16[i][2]) + (v1[11 + dvp] * d16[i][3])
\r
1676 + (v1[10 + dvp] * d16[i][4]) + (v1[9 + dvp] * d16[i][5])
\r
1677 + (v1[8 + dvp] * d16[i][6]) + (v1[7 + dvp] * d16[i][7]) + (v1[6 + dvp] * d16[i][8])
\r
1678 + (v1[5 + dvp] * d16[i][9]) + (v1[4 + dvp] * d16[i][10])
\r
1679 + (v1[3 + dvp] * d16[i][11]) + (v1[2 + dvp] * d16[i][12])
\r
1680 + (v1[1 + dvp] * d16[i][13]) + (v1[0 + dvp] * d16[i][14]) + (v1[15 + dvp] * d16[i][15])) * scalefactor);
\r
1682 _tmpOut[i] = pcm_sample;
\r
1687 // final float[] vp = actual_v;
\r
1689 // int inc = v_inc;
\r
1690 // final float[] tmpOut = _tmpOut;
\r
1693 // fat chance of having this loop unroll
\r
1694 for (int i = 0; i < 32; i++) {
\r
1695 // final float[] dp = d16[i];
\r
1699 (float) (((v2[14 + dvp] * d16[i][0]) + (v2[13 + dvp] * d16[i][1])
\r
1700 + (v2[12 + dvp] * d16[i][2]) + (v2[11 + dvp] * d16[i][3])
\r
1701 + (v2[10 + dvp] * d16[i][4]) + (v2[9 + dvp] * d16[i][5])
\r
1702 + (v2[8 + dvp] * d16[i][6]) + (v2[7 + dvp] * d16[i][7]) + (v2[6 + dvp] * d16[i][8])
\r
1703 + (v2[5 + dvp] * d16[i][9]) + (v2[4 + dvp] * d16[i][10])
\r
1704 + (v2[3 + dvp] * d16[i][11]) + (v2[2 + dvp] * d16[i][12])
\r
1705 + (v2[1 + dvp] * d16[i][13]) + (v2[0 + dvp] * d16[i][14]) + (v2[15 + dvp] * d16[i][15])) * scalefactor);
\r
1707 _tmpOut[i] = pcm_sample;
\r
1715 private void compute_pcm_samples15() {
\r
1717 // final float[] vp = actual_v;
\r
1719 // int inc = v_inc;
\r
1720 // final float[] tmpOut = _tmpOut;
\r
1723 // fat chance of having this loop unroll
\r
1724 for (int i = 0; i < 32; i++) {
\r
1726 // final float d16[i][] = d16[i];
\r
1728 (float) (((v1[15 + dvp] * d16[i][0]) + (v1[14 + dvp] * d16[i][1])
\r
1729 + (v1[13 + dvp] * d16[i][2]) + (v1[12 + dvp] * d16[i][3])
\r
1730 + (v1[11 + dvp] * d16[i][4]) + (v1[10 + dvp] * d16[i][5])
\r
1731 + (v1[9 + dvp] * d16[i][6]) + (v1[8 + dvp] * d16[i][7]) + (v1[7 + dvp] * d16[i][8])
\r
1732 + (v1[6 + dvp] * d16[i][9]) + (v1[5 + dvp] * d16[i][10])
\r
1733 + (v1[4 + dvp] * d16[i][11]) + (v1[3 + dvp] * d16[i][12])
\r
1734 + (v1[2 + dvp] * d16[i][13]) + (v1[1 + dvp] * d16[i][14]) + (v1[0 + dvp] * d16[i][15])) * scalefactor);
\r
1736 _tmpOut[i] = pcm_sample;
\r
1740 // final float[] vp = actual_v;
\r
1742 // int inc = v_inc;
\r
1743 // final float[] tmpOut = _tmpOut;
\r
1746 // fat chance of having this loop unroll
\r
1747 for (int i = 0; i < 32; i++) {
\r
1749 // final float d16[i][] = d16[i];
\r
1751 (float) (((v2[15 + dvp] * d16[i][0]) + (v2[14 + dvp] * d16[i][1])
\r
1752 + (v2[13 + dvp] * d16[i][2]) + (v2[12 + dvp] * d16[i][3])
\r
1753 + (v2[11 + dvp] * d16[i][4]) + (v2[10 + dvp] * d16[i][5])
\r
1754 + (v2[9 + dvp] * d16[i][6]) + (v2[8 + dvp] * d16[i][7]) + (v2[7 + dvp] * d16[i][8])
\r
1755 + (v2[6 + dvp] * d16[i][9]) + (v2[5 + dvp] * d16[i][10])
\r
1756 + (v2[4 + dvp] * d16[i][11]) + (v2[3 + dvp] * d16[i][12])
\r
1757 + (v2[2 + dvp] * d16[i][13]) + (v2[1 + dvp] * d16[i][14]) + (v2[0 + dvp] * d16[i][15])) * scalefactor);
\r
1759 _tmpOut[i] = pcm_sample;
\r
1766 private void compute_pcm_samples() {
\r
1768 switch (actual_write_pos) {
\r
1770 compute_pcm_samples0();
\r
1773 compute_pcm_samples1();
\r
1776 compute_pcm_samples2();
\r
1779 compute_pcm_samples3();
\r
1782 compute_pcm_samples4();
\r
1785 compute_pcm_samples5();
\r
1788 compute_pcm_samples6();
\r
1791 compute_pcm_samples7();
\r
1794 compute_pcm_samples8();
\r
1797 compute_pcm_samples9();
\r
1800 compute_pcm_samples10();
\r
1803 compute_pcm_samples11();
\r
1806 compute_pcm_samples12();
\r
1809 compute_pcm_samples13();
\r
1812 compute_pcm_samples14();
\r
1815 compute_pcm_samples15();
\r
1819 // if (buffer != null) {
\r
1820 // buffer.appendSamples(channel, _tmpOut);
\r
1822 SampleBufferWrapper.getOutput().appendSamples(channel, _tmpOut);
\r
1825 * // MDM: I was considering putting in quality control for // low-spec
\r
1826 * CPUs, but the performance gain (about 10-15%) // did not justify the
\r
1827 * considerable drop in audio quality. switch (inc) { case 16:
\r
1828 * buffer.appendSamples(channel, tmpOut); break; case 32: for (int i=0;
\r
1829 * i<16; i++) { buffer.append(channel, (short)tmpOut[i]);
\r
1830 * buffer.append(channel, (short)tmpOut[i]); } break; case 64: for (int i=0;
\r
1831 * i<8; i++) { buffer.append(channel, (short)tmpOut[i]);
\r
1832 * buffer.append(channel, (short)tmpOut[i]); buffer.append(channel,
\r
1833 * (short)tmpOut[i]); buffer.append(channel, (short)tmpOut[i]); } break;
\r
1840 * Calculate 32 PCM samples and put the into the Obuffer-object.
\r
1843 public void calculate_pcm_samples() {
\r
1846 compute_new_v1_v2();
\r
1848 compute_new_v2_v1();
\r
1851 // System.out.println("1.actual_v=" + (actual_v == v1) + " vidx=" + vidx);
\r
1852 // compute_new_v();
\r
1853 // System.out.println("2.actual_v=" + (actual_v == v1) + " vidx=" + vidx);
\r
1854 compute_pcm_samples();
\r
1855 // System.out.println("3.actual_v=" + (actual_v == v1) + " vidx=" + vidx);
\r
1857 actual_write_pos = (actual_write_pos + 1) & 0xf;
\r
1858 // actual_v = (actual_v == v1) ? v2 : v1;
\r
1866 // initialize samples[]:
\r
1867 // for (register float *floatp = samples + 32; floatp > samples; )
\r
1868 // *--floatp = 0.0f;
\r
1870 // MDM: this may not be necessary. The Layer III decoder always
\r
1871 // outputs 32 subband samples, but I haven't checked layer I & II.
\r
1872 for (int p = 0; p < 32; p++)
\r
1873 samples[p] = 0.0f;
\r
1876 private static final double MY_PI = 3.14159265358979323846;
\r
1877 private static final float cos1_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI / 64.0)));
\r
1878 private static final float cos3_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 3.0 / 64.0)));
\r
1879 private static final float cos5_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 5.0 / 64.0)));
\r
1880 private static final float cos7_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 7.0 / 64.0)));
\r
1881 private static final float cos9_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 9.0 / 64.0)));
\r
1882 private static final float cos11_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 11.0 / 64.0)));
\r
1883 private static final float cos13_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 13.0 / 64.0)));
\r
1884 private static final float cos15_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 15.0 / 64.0)));
\r
1885 private static final float cos17_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 17.0 / 64.0)));
\r
1886 private static final float cos19_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 19.0 / 64.0)));
\r
1887 private static final float cos21_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 21.0 / 64.0)));
\r
1888 private static final float cos23_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 23.0 / 64.0)));
\r
1889 private static final float cos25_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 25.0 / 64.0)));
\r
1890 private static final float cos27_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 27.0 / 64.0)));
\r
1891 private static final float cos29_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 29.0 / 64.0)));
\r
1892 private static final float cos31_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 31.0 / 64.0)));
\r
1893 private static final float cos1_32 = (float) (1.0 / (2.0 * Math.cos(MY_PI / 32.0)));
\r
1894 private static final float cos3_32 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 3.0 / 32.0)));
\r
1895 private static final float cos5_32 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 5.0 / 32.0)));
\r
1896 private static final float cos7_32 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 7.0 / 32.0)));
\r
1897 private static final float cos9_32 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 9.0 / 32.0)));
\r
1898 private static final float cos11_32 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 11.0 / 32.0)));
\r
1899 private static final float cos13_32 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 13.0 / 32.0)));
\r
1900 private static final float cos15_32 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 15.0 / 32.0)));
\r
1901 private static final float cos1_16 = (float) (1.0 / (2.0 * Math.cos(MY_PI / 16.0)));
\r
1902 private static final float cos3_16 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 3.0 / 16.0)));
\r
1903 private static final float cos5_16 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 5.0 / 16.0)));
\r
1904 private static final float cos7_16 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 7.0 / 16.0)));
\r
1905 private static final float cos1_8 = (float) (1.0 / (2.0 * Math.cos(MY_PI / 8.0)));
\r
1906 private static final float cos3_8 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 3.0 / 8.0)));
\r
1907 private static final float cos1_4 = (float) (1.0 / (2.0 * Math.cos(MY_PI / 4.0)));
\r
1909 // Note: These values are not in the same order
\r
1910 // as in Annex 3-B.3 of the ISO/IEC DIS 11172-3
\r
1911 // private float d[] = {0.000000000, -4.000442505};
\r
1914 * d[] split into subarrays of length 16. This provides for more faster access
\r
1915 * by allowing a block of 16 to be addressed with constant offset.
\r
1917 private static float d16[][] = null;
\r
1920 * Converts a 1D array into a number of smaller arrays. This is used to
\r
1921 * achieve offset + constant indexing into an array. Each sub-array represents
\r
1922 * a block of values of the original array.
\r
1925 * The array to split up into blocks.
\r
1926 * @param blockSize
\r
1927 * The size of the blocks to split the array into. This must be an
\r
1928 * exact divisor of the length of the array, or some data will be
\r
1929 * lost from the main array.
\r
1931 * @return An array of arrays in which each element in the returned array will
\r
1932 * be of length <code>blockSize</code>.
\r
1934 static private float[][] splitArray(final float[] array, final int blockSize) {
\r
1935 int size = array.length / blockSize;
\r
1936 float[][] split = new float[size][];
\r
1937 for (int i = 0; i < size; i++) {
\r
1938 split[i] = subArray(array, i * blockSize, blockSize);
\r
1944 * Returns a subarray of an existing array.
\r
1947 * The array to retrieve a subarra from.
\r
1949 * The offset in the array that corresponds to the first index of the
\r
1952 * The number of indeces in the subarray.
\r
1953 * @return The subarray, which may be of length 0.
\r
1955 static private float[] subArray(final float[] array, final int offs, int len) {
\r
1956 if (offs + len > array.length) {
\r
1957 len = array.length - offs;
\r
1963 float[] subarray = new float[len];
\r
1964 for (int i = 0; i < len; i++) {
\r
1965 subarray[i] = array[offs + i];
\r
1971 // The original data for d[]. This data is loaded from a file
\r
1972 // to reduce the overall package size and to improve performance.
\r
1974 static final float d[] = { 0.000000000f, -0.000442505f, 0.003250122f, -0.007003784f,
\r
1975 0.031082153f, -0.078628540f, 0.100311279f, -0.572036743f, 1.144989014f, 0.572036743f,
\r
1976 0.100311279f, 0.078628540f, 0.031082153f, 0.007003784f, 0.003250122f, 0.000442505f,
\r
1977 -0.000015259f, -0.000473022f, 0.003326416f, -0.007919312f, 0.030517578f, -0.084182739f,
\r
1978 0.090927124f, -0.600219727f, 1.144287109f, 0.543823242f, 0.108856201f, 0.073059082f,
\r
1979 0.031478882f, 0.006118774f, 0.003173828f, 0.000396729f, -0.000015259f, -0.000534058f,
\r
1980 0.003387451f, -0.008865356f, 0.029785156f, -0.089706421f, 0.080688477f, -0.628295898f,
\r
1981 1.142211914f, 0.515609741f, 0.116577148f, 0.067520142f, 0.031738281f, 0.005294800f,
\r
1982 0.003082275f, 0.000366211f, -0.000015259f, -0.000579834f, 0.003433228f, -0.009841919f,
\r
1983 0.028884888f, -0.095169067f, 0.069595337f, -0.656219482f, 1.138763428f, 0.487472534f,
\r
1984 0.123474121f, 0.061996460f, 0.031845093f, 0.004486084f, 0.002990723f, 0.000320435f,
\r
1985 -0.000015259f, -0.000625610f, 0.003463745f, -0.010848999f, 0.027801514f, -0.100540161f,
\r
1986 0.057617188f, -0.683914185f, 1.133926392f, 0.459472656f, 0.129577637f, 0.056533813f,
\r
1987 0.031814575f, 0.003723145f, 0.002899170f, 0.000289917f, -0.000015259f, -0.000686646f,
\r
1988 0.003479004f, -0.011886597f, 0.026535034f, -0.105819702f, 0.044784546f, -0.711318970f,
\r
1989 1.127746582f, 0.431655884f, 0.134887695f, 0.051132202f, 0.031661987f, 0.003005981f,
\r
1990 0.002792358f, 0.000259399f, -0.000015259f, -0.000747681f, 0.003479004f, -0.012939453f,
\r
1991 0.025085449f, -0.110946655f, 0.031082153f, -0.738372803f, 1.120223999f, 0.404083252f,
\r
1992 0.139450073f, 0.045837402f, 0.031387329f, 0.002334595f, 0.002685547f, 0.000244141f,
\r
1993 -0.000030518f, -0.000808716f, 0.003463745f, -0.014022827f, 0.023422241f, -0.115921021f,
\r
1994 0.016510010f, -0.765029907f, 1.111373901f, 0.376800537f, 0.143264771f, 0.040634155f,
\r
1995 0.031005859f, 0.001693726f, 0.002578735f, 0.000213623f, -0.000030518f, -0.000885010f,
\r
1996 0.003417969f, -0.015121460f, 0.021575928f, -0.120697021f, 0.001068115f, -0.791213989f,
\r
1997 1.101211548f, 0.349868774f, 0.146362305f, 0.035552979f, 0.030532837f, 0.001098633f,
\r
1998 0.002456665f, 0.000198364f, -0.000030518f, -0.000961304f, 0.003372192f, -0.016235352f,
\r
1999 0.019531250f, -0.125259399f, -0.015228271f, -0.816864014f, 1.089782715f, 0.323318481f,
\r
2000 0.148773193f, 0.030609131f, 0.029937744f, 0.000549316f, 0.002349854f, 0.000167847f,
\r
2001 -0.000030518f, -0.001037598f, 0.003280640f, -0.017349243f, 0.017257690f, -0.129562378f,
\r
2002 -0.032379150f, -0.841949463f, 1.077117920f, 0.297210693f, 0.150497437f, 0.025817871f,
\r
2003 0.029281616f, 0.000030518f, 0.002243042f, 0.000152588f, -0.000045776f, -0.001113892f,
\r
2004 0.003173828f, -0.018463135f, 0.014801025f, -0.133590698f, -0.050354004f, -0.866363525f,
\r
2005 1.063217163f, 0.271591187f, 0.151596069f, 0.021179199f, 0.028533936f, -0.000442505f,
\r
2006 0.002120972f, 0.000137329f, -0.000045776f, -0.001205444f, 0.003051758f, -0.019577026f,
\r
2007 0.012115479f, -0.137298584f, -0.069168091f, -0.890090942f, 1.048156738f, 0.246505737f,
\r
2008 0.152069092f, 0.016708374f, 0.027725220f, -0.000869751f, 0.002014160f, 0.000122070f,
\r
2009 -0.000061035f, -0.001296997f, 0.002883911f, -0.020690918f, 0.009231567f, -0.140670776f,
\r
2010 -0.088775635f, -0.913055420f, 1.031936646f, 0.221984863f, 0.151962280f, 0.012420654f,
\r
2011 0.026840210f, -0.001266479f, 0.001907349f, 0.000106812f, -0.000061035f, -0.001388550f,
\r
2012 0.002700806f, -0.021789551f, 0.006134033f, -0.143676758f, -0.109161377f, -0.935195923f,
\r
2013 1.014617920f, 0.198059082f, 0.151306152f, 0.008316040f, 0.025909424f, -0.001617432f,
\r
2014 0.001785278f, 0.000106812f, -0.000076294f, -0.001480103f, 0.002487183f, -0.022857666f,
\r
2015 0.002822876f, -0.146255493f, -0.130310059f, -0.956481934f, 0.996246338f, 0.174789429f,
\r
2016 0.150115967f, 0.004394531f, 0.024932861f, -0.001937866f, 0.001693726f, 0.000091553f,
\r
2017 -0.000076294f, -0.001586914f, 0.002227783f, -0.023910522f, -0.000686646f, -0.148422241f,
\r
2018 -0.152206421f, -0.976852417f, 0.976852417f, 0.152206421f, 0.148422241f, 0.000686646f,
\r
2019 0.023910522f, -0.002227783f, 0.001586914f, 0.000076294f, -0.000091553f, -0.001693726f,
\r
2020 0.001937866f, -0.024932861f, -0.004394531f, -0.150115967f, -0.174789429f, -0.996246338f,
\r
2021 0.956481934f, 0.130310059f, 0.146255493f, -0.002822876f, 0.022857666f, -0.002487183f,
\r
2022 0.001480103f, 0.000076294f, -0.000106812f, -0.001785278f, 0.001617432f, -0.025909424f,
\r
2023 -0.008316040f, -0.151306152f, -0.198059082f, -1.014617920f, 0.935195923f, 0.109161377f,
\r
2024 0.143676758f, -0.006134033f, 0.021789551f, -0.002700806f, 0.001388550f, 0.000061035f,
\r
2025 -0.000106812f, -0.001907349f, 0.001266479f, -0.026840210f, -0.012420654f, -0.151962280f,
\r
2026 -0.221984863f, -1.031936646f, 0.913055420f, 0.088775635f, 0.140670776f, -0.009231567f,
\r
2027 0.020690918f, -0.002883911f, 0.001296997f, 0.000061035f, -0.000122070f, -0.002014160f,
\r
2028 0.000869751f, -0.027725220f, -0.016708374f, -0.152069092f, -0.246505737f, -1.048156738f,
\r
2029 0.890090942f, 0.069168091f, 0.137298584f, -0.012115479f, 0.019577026f, -0.003051758f,
\r
2030 0.001205444f, 0.000045776f, -0.000137329f, -0.002120972f, 0.000442505f, -0.028533936f,
\r
2031 -0.021179199f, -0.151596069f, -0.271591187f, -1.063217163f, 0.866363525f, 0.050354004f,
\r
2032 0.133590698f, -0.014801025f, 0.018463135f, -0.003173828f, 0.001113892f, 0.000045776f,
\r
2033 -0.000152588f, -0.002243042f, -0.000030518f, -0.029281616f, -0.025817871f, -0.150497437f,
\r
2034 -0.297210693f, -1.077117920f, 0.841949463f, 0.032379150f, 0.129562378f, -0.017257690f,
\r
2035 0.017349243f, -0.003280640f, 0.001037598f, 0.000030518f, -0.000167847f, -0.002349854f,
\r
2036 -0.000549316f, -0.029937744f, -0.030609131f, -0.148773193f, -0.323318481f, -1.089782715f,
\r
2037 0.816864014f, 0.015228271f, 0.125259399f, -0.019531250f, 0.016235352f, -0.003372192f,
\r
2038 0.000961304f, 0.000030518f, -0.000198364f, -0.002456665f, -0.001098633f, -0.030532837f,
\r
2039 -0.035552979f, -0.146362305f, -0.349868774f, -1.101211548f, 0.791213989f, -0.001068115f,
\r
2040 0.120697021f, -0.021575928f, 0.015121460f, -0.003417969f, 0.000885010f, 0.000030518f,
\r
2041 -0.000213623f, -0.002578735f, -0.001693726f, -0.031005859f, -0.040634155f, -0.143264771f,
\r
2042 -0.376800537f, -1.111373901f, 0.765029907f, -0.016510010f, 0.115921021f, -0.023422241f,
\r
2043 0.014022827f, -0.003463745f, 0.000808716f, 0.000030518f, -0.000244141f, -0.002685547f,
\r
2044 -0.002334595f, -0.031387329f, -0.045837402f, -0.139450073f, -0.404083252f, -1.120223999f,
\r
2045 0.738372803f, -0.031082153f, 0.110946655f, -0.025085449f, 0.012939453f, -0.003479004f,
\r
2046 0.000747681f, 0.000015259f, -0.000259399f, -0.002792358f, -0.003005981f, -0.031661987f,
\r
2047 -0.051132202f, -0.134887695f, -0.431655884f, -1.127746582f, 0.711318970f, -0.044784546f,
\r
2048 0.105819702f, -0.026535034f, 0.011886597f, -0.003479004f, 0.000686646f, 0.000015259f,
\r
2049 -0.000289917f, -0.002899170f, -0.003723145f, -0.031814575f, -0.056533813f, -0.129577637f,
\r
2050 -0.459472656f, -1.133926392f, 0.683914185f, -0.057617188f, 0.100540161f, -0.027801514f,
\r
2051 0.010848999f, -0.003463745f, 0.000625610f, 0.000015259f, -0.000320435f, -0.002990723f,
\r
2052 -0.004486084f, -0.031845093f, -0.061996460f, -0.123474121f, -0.487472534f, -1.138763428f,
\r
2053 0.656219482f, -0.069595337f, 0.095169067f, -0.028884888f, 0.009841919f, -0.003433228f,
\r
2054 0.000579834f, 0.000015259f, -0.000366211f, -0.003082275f, -0.005294800f, -0.031738281f,
\r
2055 -0.067520142f, -0.116577148f, -0.515609741f, -1.142211914f, 0.628295898f, -0.080688477f,
\r
2056 0.089706421f, -0.029785156f, 0.008865356f, -0.003387451f, 0.000534058f, 0.000015259f,
\r
2057 -0.000396729f, -0.003173828f, -0.006118774f, -0.031478882f, -0.073059082f, -0.108856201f,
\r
2058 -0.543823242f, -1.144287109f, 0.600219727f, -0.090927124f, 0.084182739f, -0.030517578f,
\r
2059 0.007919312f, -0.003326416f, 0.000473022f, 0.000015259f };
\r