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 @LATTICE("OUT<V,V<SAMPLE,SAMPLE<EQ,EQ<IDX")
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38 final class SynthesisFilter {
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41 private int vidx = 1;
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46 // private float[] actual_v; // v1 or v2
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48 private int actual_write_pos; // 0-15
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50 private float[] samples; // 32 new subband samples
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52 private int channel;
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54 private float scalefactor;
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59 * Quality value for controlling CPU usage/quality tradeoff.
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62 * private int quality;
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64 * private int v_inc;
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68 * public static final int HIGH_QUALITY = 1; public static final int
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69 * MEDIUM_QUALITY = 2; public static final int LOW_QUALITY = 4;
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73 * Contructor. The scalefactor scales the calculated float pcm samples to
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74 * short values (raw pcm samples are in [-1.0, 1.0], if no violations occur).
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76 public SynthesisFilter(int channelnumber, float factor, float[] eq0) {
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78 d16 = splitArray(d, 16);
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80 v1 = new float[512];
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81 v2 = new float[512];
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82 samples = new float[32];
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83 channel = channelnumber;
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84 scalefactor = factor;
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86 // setQuality(HIGH_QUALITY);
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90 for (int i = 0; i < 32; i++)
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93 if (eq.length < 32) {
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94 throw new IllegalArgumentException("eq0");
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99 for (int p = 0; p < 512; p++)
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100 v1[p] = v2[p] = 0.0f;
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102 for (int p2 = 0; p2 < 32; p2++)
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103 samples[p2] = 0.0f;
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106 actual_write_pos = 15;
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111 * private void setQuality(int quality0) { switch (quality0) { case
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112 * HIGH_QUALITY: case MEDIUM_QUALITY: case LOW_QUALITY: v_inc = 16 * quality0;
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113 * quality = quality0; break; default : throw new
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114 * IllegalArgumentException("Unknown quality value"); } }
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116 * public int getQuality() { return quality; }
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120 * Reset the synthesis filter.
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122 public void reset() {
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124 // float[] floatp2;
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126 // initialize v1[] and v2[]:
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127 // for (floatp = v1 + 512, floatp2 = v2 + 512; floatp > v1; )
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128 // *--floatp = *--floatp2 = 0.0;
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129 for (int p = 0; p < 512; p++)
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130 v1[p] = v2[p] = 0.0f;
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132 // initialize samples[]:
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133 // for (floatp = samples + 32; floatp > samples; )
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134 // *--floatp = 0.0;
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135 for (int p2 = 0; p2 < 32; p2++)
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136 samples[p2] = 0.0f;
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139 actual_write_pos = 15;
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145 public void input_sample(float sample, int subbandnumber) {
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146 samples[subbandnumber] = eq[subbandnumber] * sample;
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149 public void input_samples(float[] s) {
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150 for (int i = 31; i >= 0; i--) {
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151 samples[i] = s[i] * eq[i];
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155 private void compute_new_v2_v1() {
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157 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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158 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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159 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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160 float new_v30, new_v31;
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196 // float[] new_v = new float[32]; // new V[0-15] and V[33-48] of Figure
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197 // 3-A.2 in ISO DIS 11172-3
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198 // float[] p = new float[16];
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199 // float[] pp = new float[16];
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201 // float[] s = samples;
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203 float s0 = samples[0];
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204 float s1 = samples[1];
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205 float s2 = samples[2];
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206 float s3 = samples[3];
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207 float s4 = samples[4];
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208 float s5 = samples[5];
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209 float s6 = samples[6];
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210 float s7 = samples[7];
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211 float s8 = samples[8];
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212 float s9 = samples[9];
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213 float s10 = samples[10];
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214 float s11 = samples[11];
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215 float s12 = samples[12];
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216 float s13 = samples[13];
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217 float s14 = samples[14];
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218 float s15 = samples[15];
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219 float s16 = samples[16];
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220 float s17 = samples[17];
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221 float s18 = samples[18];
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222 float s19 = samples[19];
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223 float s20 = samples[20];
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224 float s21 = samples[21];
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225 float s22 = samples[22];
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226 float s23 = samples[23];
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227 float s24 = samples[24];
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228 float s25 = samples[25];
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229 float s26 = samples[26];
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230 float s27 = samples[27];
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231 float s28 = samples[28];
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232 float s29 = samples[29];
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233 float s30 = samples[30];
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234 float s31 = samples[31];
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236 float p0 = s0 + s31;
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237 float p1 = s1 + s30;
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238 float p2 = s2 + s29;
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239 float p3 = s3 + s28;
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240 float p4 = s4 + s27;
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241 float p5 = s5 + s26;
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242 float p6 = s6 + s25;
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243 float p7 = s7 + s24;
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244 float p8 = s8 + s23;
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245 float p9 = s9 + s22;
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246 float p10 = s10 + s21;
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247 float p11 = s11 + s20;
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248 float p12 = s12 + s19;
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249 float p13 = s13 + s18;
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250 float p14 = s14 + s17;
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251 float p15 = s15 + s16;
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253 float pp0 = p0 + p15;
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254 float pp1 = p1 + p14;
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255 float pp2 = p2 + p13;
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256 float pp3 = p3 + p12;
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257 float pp4 = p4 + p11;
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258 float pp5 = p5 + p10;
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259 float pp6 = p6 + p9;
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260 float pp7 = p7 + p8;
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261 float pp8 = (p0 - p15) * cos1_32;
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262 float pp9 = (p1 - p14) * cos3_32;
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263 float pp10 = (p2 - p13) * cos5_32;
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264 float pp11 = (p3 - p12) * cos7_32;
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265 float pp12 = (p4 - p11) * cos9_32;
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266 float pp13 = (p5 - p10) * cos11_32;
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267 float pp14 = (p6 - p9) * cos13_32;
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268 float pp15 = (p7 - p8) * cos15_32;
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274 p4 = (pp0 - pp7) * cos1_16;
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275 p5 = (pp1 - pp6) * cos3_16;
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276 p6 = (pp2 - pp5) * cos5_16;
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277 p7 = (pp3 - pp4) * cos7_16;
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282 p12 = (pp8 - pp15) * cos1_16;
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283 p13 = (pp9 - pp14) * cos3_16;
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284 p14 = (pp10 - pp13) * cos5_16;
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285 p15 = (pp11 - pp12) * cos7_16;
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289 pp2 = (p0 - p3) * cos1_8;
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290 pp3 = (p1 - p2) * cos3_8;
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293 pp6 = (p4 - p7) * cos1_8;
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294 pp7 = (p5 - p6) * cos3_8;
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297 pp10 = (p8 - p11) * cos1_8;
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298 pp11 = (p9 - p10) * cos3_8;
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301 pp14 = (p12 - p15) * cos1_8;
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302 pp15 = (p13 - p14) * cos3_8;
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305 p1 = (pp0 - pp1) * cos1_4;
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307 p3 = (pp2 - pp3) * cos1_4;
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309 p5 = (pp4 - pp5) * cos1_4;
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311 p7 = (pp6 - pp7) * cos1_4;
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313 p9 = (pp8 - pp9) * cos1_4;
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315 p11 = (pp10 - pp11) * cos1_4;
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317 p13 = (pp12 - pp13) * cos1_4;
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319 p15 = (pp14 - pp15) * cos1_4;
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321 // this is pretty insane coding
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323 new_v19/* 36-17 */= -(new_v4 = (new_v12 = p7) + p5) - p6;
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324 new_v27/* 44-17 */= -p6 - p7 - p4;
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325 new_v6 = (new_v10 = (new_v14 = p15) + p11) + p13;
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326 new_v17/* 34-17 */= -(new_v2 = p15 + p13 + p9) - p14;
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327 new_v21/* 38-17 */= (tmp1 = -p14 - p15 - p10 - p11) - p13;
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328 new_v29/* 46-17 */= -p14 - p15 - p12 - p8;
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329 new_v25/* 42-17 */= tmp1 - p12;
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330 new_v31/* 48-17 */= -p0;
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332 new_v23/* 40-17 */= -(new_v8 = p3) - p2;
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334 p0 = (s0 - s31) * cos1_64;
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335 p1 = (s1 - s30) * cos3_64;
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336 p2 = (s2 - s29) * cos5_64;
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337 p3 = (s3 - s28) * cos7_64;
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338 p4 = (s4 - s27) * cos9_64;
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339 p5 = (s5 - s26) * cos11_64;
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340 p6 = (s6 - s25) * cos13_64;
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341 p7 = (s7 - s24) * cos15_64;
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342 p8 = (s8 - s23) * cos17_64;
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343 p9 = (s9 - s22) * cos19_64;
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344 p10 = (s10 - s21) * cos21_64;
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345 p11 = (s11 - s20) * cos23_64;
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346 p12 = (s12 - s19) * cos25_64;
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347 p13 = (s13 - s18) * cos27_64;
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348 p14 = (s14 - s17) * cos29_64;
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349 p15 = (s15 - s16) * cos31_64;
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359 pp8 = (p0 - p15) * cos1_32;
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360 pp9 = (p1 - p14) * cos3_32;
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361 pp10 = (p2 - p13) * cos5_32;
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362 pp11 = (p3 - p12) * cos7_32;
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363 pp12 = (p4 - p11) * cos9_32;
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364 pp13 = (p5 - p10) * cos11_32;
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365 pp14 = (p6 - p9) * cos13_32;
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366 pp15 = (p7 - p8) * cos15_32;
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372 p4 = (pp0 - pp7) * cos1_16;
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373 p5 = (pp1 - pp6) * cos3_16;
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374 p6 = (pp2 - pp5) * cos5_16;
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375 p7 = (pp3 - pp4) * cos7_16;
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380 p12 = (pp8 - pp15) * cos1_16;
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381 p13 = (pp9 - pp14) * cos3_16;
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382 p14 = (pp10 - pp13) * cos5_16;
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383 p15 = (pp11 - pp12) * cos7_16;
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387 pp2 = (p0 - p3) * cos1_8;
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388 pp3 = (p1 - p2) * cos3_8;
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391 pp6 = (p4 - p7) * cos1_8;
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392 pp7 = (p5 - p6) * cos3_8;
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395 pp10 = (p8 - p11) * cos1_8;
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396 pp11 = (p9 - p10) * cos3_8;
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399 pp14 = (p12 - p15) * cos1_8;
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400 pp15 = (p13 - p14) * cos3_8;
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403 p1 = (pp0 - pp1) * cos1_4;
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405 p3 = (pp2 - pp3) * cos1_4;
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407 p5 = (pp4 - pp5) * cos1_4;
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409 p7 = (pp6 - pp7) * cos1_4;
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411 p9 = (pp8 - pp9) * cos1_4;
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413 p11 = (pp10 - pp11) * cos1_4;
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415 p13 = (pp12 - pp13) * cos1_4;
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417 p15 = (pp14 - pp15) * cos1_4;
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419 // manually doing something that a compiler should handle sucks
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420 // coding like this is hard to read
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422 new_v5 = (new_v11 = (new_v13 = (new_v15 = p15) + p7) + p11) + p5 + p13;
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423 new_v7 = (new_v9 = p15 + p11 + p3) + p13;
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424 new_v16/* 33-17 */= -(new_v1 = (tmp1 = p13 + p15 + p9) + p1) - p14;
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425 new_v18/* 35-17 */= -(new_v3 = tmp1 + p5 + p7) - p6 - p14;
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427 new_v22/* 39-17 */= (tmp1 = -p10 - p11 - p14 - p15) - p13 - p2 - p3;
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428 new_v20/* 37-17 */= tmp1 - p13 - p5 - p6 - p7;
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429 new_v24/* 41-17 */= tmp1 - p12 - p2 - p3;
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430 new_v26/* 43-17 */= tmp1 - p12 - (tmp2 = p4 + p6 + p7);
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431 new_v30/* 47-17 */= (tmp1 = -p8 - p12 - p14 - p15) - p0;
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432 new_v28/* 45-17 */= tmp1 - tmp2;
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434 // insert V[0-15] (== new_v[0-15]) into actual v:
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435 // float[] x2 = actual_v + actual_write_pos;
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436 // float dest[] = actual_v; v2
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438 int pos = actual_write_pos;
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440 v2[0 + pos] = new_v0;
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441 v2[16 + pos] = new_v1;
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442 v2[32 + pos] = new_v2;
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443 v2[48 + pos] = new_v3;
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444 v2[64 + pos] = new_v4;
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445 v2[80 + pos] = new_v5;
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446 v2[96 + pos] = new_v6;
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447 v2[112 + pos] = new_v7;
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448 v2[128 + pos] = new_v8;
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449 v2[144 + pos] = new_v9;
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450 v2[160 + pos] = new_v10;
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451 v2[176 + pos] = new_v11;
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452 v2[192 + pos] = new_v12;
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453 v2[208 + pos] = new_v13;
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454 v2[224 + pos] = new_v14;
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455 v2[240 + pos] = new_v15;
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457 // V[16] is always 0.0:
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458 v2[256 + pos] = 0.0f;
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460 // insert V[17-31] (== -new_v[15-1]) into actual v:
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461 v2[272 + pos] = -new_v15;
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462 v2[288 + pos] = -new_v14;
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463 v2[304 + pos] = -new_v13;
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464 v2[320 + pos] = -new_v12;
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465 v2[336 + pos] = -new_v11;
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466 v2[352 + pos] = -new_v10;
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467 v2[368 + pos] = -new_v9;
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468 v2[384 + pos] = -new_v8;
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469 v2[400 + pos] = -new_v7;
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470 v2[416 + pos] = -new_v6;
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471 v2[432 + pos] = -new_v5;
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472 v2[448 + pos] = -new_v4;
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473 v2[464 + pos] = -new_v3;
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474 v2[480 + pos] = -new_v2;
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475 v2[496 + pos] = -new_v1;
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477 // insert V[32] (== -new_v[0]) into other v:
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478 // dest = (actual_v == v1) ? v2 : v1;
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480 v1[0 + pos] = -new_v0;
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481 // insert V[33-48] (== new_v[16-31]) into other v:
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482 v1[16 + pos] = new_v16;
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483 v1[32 + pos] = new_v17;
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484 v1[48 + pos] = new_v18;
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485 v1[64 + pos] = new_v19;
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486 v1[80 + pos] = new_v20;
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487 v1[96 + pos] = new_v21;
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488 v1[112 + pos] = new_v22;
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489 v1[128 + pos] = new_v23;
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490 v1[144 + pos] = new_v24;
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491 v1[160 + pos] = new_v25;
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492 v1[176 + pos] = new_v26;
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493 v1[192 + pos] = new_v27;
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494 v1[208 + pos] = new_v28;
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495 v1[224 + pos] = new_v29;
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496 v1[240 + pos] = new_v30;
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497 v1[256 + pos] = new_v31;
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499 // insert V[49-63] (== new_v[30-16]) into other v:
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500 v1[272 + pos] = new_v30;
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501 v1[288 + pos] = new_v29;
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502 v1[304 + pos] = new_v28;
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503 v1[320 + pos] = new_v27;
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504 v1[336 + pos] = new_v26;
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505 v1[352 + pos] = new_v25;
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506 v1[368 + pos] = new_v24;
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507 v1[384 + pos] = new_v23;
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508 v1[400 + pos] = new_v22;
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509 v1[416 + pos] = new_v21;
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510 v1[432 + pos] = new_v20;
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511 v1[448 + pos] = new_v19;
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512 v1[464 + pos] = new_v18;
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513 v1[480 + pos] = new_v17;
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514 v1[496 + pos] = new_v16;
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517 private void compute_new_v1_v2() {
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519 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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520 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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521 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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522 float new_v30, new_v31;
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558 // float[] new_v = new float[32]; // new V[0-15] and V[33-48] of Figure
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559 // 3-A.2 in ISO DIS 11172-3
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560 // float[] p = new float[16];
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561 // float[] pp = new float[16];
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563 // float[] s = samples;
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565 float s0 = samples[0];
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566 float s1 = samples[1];
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567 float s2 = samples[2];
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568 float s3 = samples[3];
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569 float s4 = samples[4];
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570 float s5 = samples[5];
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571 float s6 = samples[6];
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572 float s7 = samples[7];
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573 float s8 = samples[8];
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574 float s9 = samples[9];
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575 float s10 = samples[10];
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576 float s11 = samples[11];
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577 float s12 = samples[12];
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578 float s13 = samples[13];
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579 float s14 = samples[14];
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580 float s15 = samples[15];
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581 float s16 = samples[16];
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582 float s17 = samples[17];
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583 float s18 = samples[18];
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584 float s19 = samples[19];
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585 float s20 = samples[20];
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586 float s21 = samples[21];
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587 float s22 = samples[22];
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588 float s23 = samples[23];
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589 float s24 = samples[24];
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590 float s25 = samples[25];
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591 float s26 = samples[26];
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592 float s27 = samples[27];
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593 float s28 = samples[28];
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594 float s29 = samples[29];
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595 float s30 = samples[30];
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596 float s31 = samples[31];
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598 float p0 = s0 + s31;
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599 float p1 = s1 + s30;
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600 float p2 = s2 + s29;
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601 float p3 = s3 + s28;
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602 float p4 = s4 + s27;
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603 float p5 = s5 + s26;
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604 float p6 = s6 + s25;
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605 float p7 = s7 + s24;
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606 float p8 = s8 + s23;
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607 float p9 = s9 + s22;
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608 float p10 = s10 + s21;
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609 float p11 = s11 + s20;
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610 float p12 = s12 + s19;
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611 float p13 = s13 + s18;
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612 float p14 = s14 + s17;
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613 float p15 = s15 + s16;
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615 float pp0 = p0 + p15;
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616 float pp1 = p1 + p14;
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617 float pp2 = p2 + p13;
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618 float pp3 = p3 + p12;
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619 float pp4 = p4 + p11;
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620 float pp5 = p5 + p10;
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621 float pp6 = p6 + p9;
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622 float pp7 = p7 + p8;
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623 float pp8 = (p0 - p15) * cos1_32;
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624 float pp9 = (p1 - p14) * cos3_32;
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625 float pp10 = (p2 - p13) * cos5_32;
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626 float pp11 = (p3 - p12) * cos7_32;
\r
627 float pp12 = (p4 - p11) * cos9_32;
\r
628 float pp13 = (p5 - p10) * cos11_32;
\r
629 float pp14 = (p6 - p9) * cos13_32;
\r
630 float pp15 = (p7 - p8) * cos15_32;
\r
636 p4 = (pp0 - pp7) * cos1_16;
\r
637 p5 = (pp1 - pp6) * cos3_16;
\r
638 p6 = (pp2 - pp5) * cos5_16;
\r
639 p7 = (pp3 - pp4) * cos7_16;
\r
644 p12 = (pp8 - pp15) * cos1_16;
\r
645 p13 = (pp9 - pp14) * cos3_16;
\r
646 p14 = (pp10 - pp13) * cos5_16;
\r
647 p15 = (pp11 - pp12) * cos7_16;
\r
651 pp2 = (p0 - p3) * cos1_8;
\r
652 pp3 = (p1 - p2) * cos3_8;
\r
655 pp6 = (p4 - p7) * cos1_8;
\r
656 pp7 = (p5 - p6) * cos3_8;
\r
659 pp10 = (p8 - p11) * cos1_8;
\r
660 pp11 = (p9 - p10) * cos3_8;
\r
663 pp14 = (p12 - p15) * cos1_8;
\r
664 pp15 = (p13 - p14) * cos3_8;
\r
667 p1 = (pp0 - pp1) * cos1_4;
\r
669 p3 = (pp2 - pp3) * cos1_4;
\r
671 p5 = (pp4 - pp5) * cos1_4;
\r
673 p7 = (pp6 - pp7) * cos1_4;
\r
675 p9 = (pp8 - pp9) * cos1_4;
\r
677 p11 = (pp10 - pp11) * cos1_4;
\r
679 p13 = (pp12 - pp13) * cos1_4;
\r
681 p15 = (pp14 - pp15) * cos1_4;
\r
683 // this is pretty insane coding
\r
685 new_v19/* 36-17 */= -(new_v4 = (new_v12 = p7) + p5) - p6;
\r
686 new_v27/* 44-17 */= -p6 - p7 - p4;
\r
687 new_v6 = (new_v10 = (new_v14 = p15) + p11) + p13;
\r
688 new_v17/* 34-17 */= -(new_v2 = p15 + p13 + p9) - p14;
\r
689 new_v21/* 38-17 */= (tmp1 = -p14 - p15 - p10 - p11) - p13;
\r
690 new_v29/* 46-17 */= -p14 - p15 - p12 - p8;
\r
691 new_v25/* 42-17 */= tmp1 - p12;
\r
692 new_v31/* 48-17 */= -p0;
\r
694 new_v23/* 40-17 */= -(new_v8 = p3) - p2;
\r
696 p0 = (s0 - s31) * cos1_64;
\r
697 p1 = (s1 - s30) * cos3_64;
\r
698 p2 = (s2 - s29) * cos5_64;
\r
699 p3 = (s3 - s28) * cos7_64;
\r
700 p4 = (s4 - s27) * cos9_64;
\r
701 p5 = (s5 - s26) * cos11_64;
\r
702 p6 = (s6 - s25) * cos13_64;
\r
703 p7 = (s7 - s24) * cos15_64;
\r
704 p8 = (s8 - s23) * cos17_64;
\r
705 p9 = (s9 - s22) * cos19_64;
\r
706 p10 = (s10 - s21) * cos21_64;
\r
707 p11 = (s11 - s20) * cos23_64;
\r
708 p12 = (s12 - s19) * cos25_64;
\r
709 p13 = (s13 - s18) * cos27_64;
\r
710 p14 = (s14 - s17) * cos29_64;
\r
711 p15 = (s15 - s16) * cos31_64;
\r
721 pp8 = (p0 - p15) * cos1_32;
\r
722 pp9 = (p1 - p14) * cos3_32;
\r
723 pp10 = (p2 - p13) * cos5_32;
\r
724 pp11 = (p3 - p12) * cos7_32;
\r
725 pp12 = (p4 - p11) * cos9_32;
\r
726 pp13 = (p5 - p10) * cos11_32;
\r
727 pp14 = (p6 - p9) * cos13_32;
\r
728 pp15 = (p7 - p8) * cos15_32;
\r
734 p4 = (pp0 - pp7) * cos1_16;
\r
735 p5 = (pp1 - pp6) * cos3_16;
\r
736 p6 = (pp2 - pp5) * cos5_16;
\r
737 p7 = (pp3 - pp4) * cos7_16;
\r
742 p12 = (pp8 - pp15) * cos1_16;
\r
743 p13 = (pp9 - pp14) * cos3_16;
\r
744 p14 = (pp10 - pp13) * cos5_16;
\r
745 p15 = (pp11 - pp12) * cos7_16;
\r
749 pp2 = (p0 - p3) * cos1_8;
\r
750 pp3 = (p1 - p2) * cos3_8;
\r
753 pp6 = (p4 - p7) * cos1_8;
\r
754 pp7 = (p5 - p6) * cos3_8;
\r
757 pp10 = (p8 - p11) * cos1_8;
\r
758 pp11 = (p9 - p10) * cos3_8;
\r
761 pp14 = (p12 - p15) * cos1_8;
\r
762 pp15 = (p13 - p14) * cos3_8;
\r
765 p1 = (pp0 - pp1) * cos1_4;
\r
767 p3 = (pp2 - pp3) * cos1_4;
\r
769 p5 = (pp4 - pp5) * cos1_4;
\r
771 p7 = (pp6 - pp7) * cos1_4;
\r
773 p9 = (pp8 - pp9) * cos1_4;
\r
775 p11 = (pp10 - pp11) * cos1_4;
\r
777 p13 = (pp12 - pp13) * cos1_4;
\r
779 p15 = (pp14 - pp15) * cos1_4;
\r
781 // manually doing something that a compiler should handle sucks
\r
782 // coding like this is hard to read
\r
784 new_v5 = (new_v11 = (new_v13 = (new_v15 = p15) + p7) + p11) + p5 + p13;
\r
785 new_v7 = (new_v9 = p15 + p11 + p3) + p13;
\r
786 new_v16/* 33-17 */= -(new_v1 = (tmp1 = p13 + p15 + p9) + p1) - p14;
\r
787 new_v18/* 35-17 */= -(new_v3 = tmp1 + p5 + p7) - p6 - p14;
\r
789 new_v22/* 39-17 */= (tmp1 = -p10 - p11 - p14 - p15) - p13 - p2 - p3;
\r
790 new_v20/* 37-17 */= tmp1 - p13 - p5 - p6 - p7;
\r
791 new_v24/* 41-17 */= tmp1 - p12 - p2 - p3;
\r
792 new_v26/* 43-17 */= tmp1 - p12 - (tmp2 = p4 + p6 + p7);
\r
793 new_v30/* 47-17 */= (tmp1 = -p8 - p12 - p14 - p15) - p0;
\r
794 new_v28/* 45-17 */= tmp1 - tmp2;
\r
796 // insert V[0-15] (== new_v[0-15]) into actual v:
\r
797 // float[] x2 = actual_v + actual_write_pos;
\r
798 // float dest[] = actual_v; actual_v=v1;
\r
800 int pos = actual_write_pos;
\r
802 v1[0 + pos] = new_v0;
\r
803 v1[16 + pos] = new_v1;
\r
804 v1[32 + pos] = new_v2;
\r
805 v1[48 + pos] = new_v3;
\r
806 v1[64 + pos] = new_v4;
\r
807 v1[80 + pos] = new_v5;
\r
808 v1[96 + pos] = new_v6;
\r
809 v1[112 + pos] = new_v7;
\r
810 v1[128 + pos] = new_v8;
\r
811 v1[144 + pos] = new_v9;
\r
812 v1[160 + pos] = new_v10;
\r
813 v1[176 + pos] = new_v11;
\r
814 v1[192 + pos] = new_v12;
\r
815 v1[208 + pos] = new_v13;
\r
816 v1[224 + pos] = new_v14;
\r
817 v1[240 + pos] = new_v15;
\r
819 // V[16] is always 0.0:
\r
820 v1[256 + pos] = 0.0f;
\r
822 // insert V[17-31] (== -new_v[15-1]) into actual v:
\r
823 v1[272 + pos] = -new_v15;
\r
824 v1[288 + pos] = -new_v14;
\r
825 v1[304 + pos] = -new_v13;
\r
826 v1[320 + pos] = -new_v12;
\r
827 v1[336 + pos] = -new_v11;
\r
828 v1[352 + pos] = -new_v10;
\r
829 v1[368 + pos] = -new_v9;
\r
830 v1[384 + pos] = -new_v8;
\r
831 v1[400 + pos] = -new_v7;
\r
832 v1[416 + pos] = -new_v6;
\r
833 v1[432 + pos] = -new_v5;
\r
834 v1[448 + pos] = -new_v4;
\r
835 v1[464 + pos] = -new_v3;
\r
836 v1[480 + pos] = -new_v2;
\r
837 v1[496 + pos] = -new_v1;
\r
839 // insert V[32] (== -new_v[0]) into other v:
\r
840 // dest = (actual_v == v1) ? v2 : v1;
\r
842 v2[0 + pos] = -new_v0;
\r
843 // insert V[33-48] (== new_v[16-31]) into other v:
\r
844 v2[16 + pos] = new_v16;
\r
845 v2[32 + pos] = new_v17;
\r
846 v2[48 + pos] = new_v18;
\r
847 v2[64 + pos] = new_v19;
\r
848 v2[80 + pos] = new_v20;
\r
849 v2[96 + pos] = new_v21;
\r
850 v2[112 + pos] = new_v22;
\r
851 v2[128 + pos] = new_v23;
\r
852 v2[144 + pos] = new_v24;
\r
853 v2[160 + pos] = new_v25;
\r
854 v2[176 + pos] = new_v26;
\r
855 v2[192 + pos] = new_v27;
\r
856 v2[208 + pos] = new_v28;
\r
857 v2[224 + pos] = new_v29;
\r
858 v2[240 + pos] = new_v30;
\r
859 v2[256 + pos] = new_v31;
\r
861 // insert V[49-63] (== new_v[30-16]) into other v:
\r
862 v2[272 + pos] = new_v30;
\r
863 v2[288 + pos] = new_v29;
\r
864 v2[304 + pos] = new_v28;
\r
865 v2[320 + pos] = new_v27;
\r
866 v2[336 + pos] = new_v26;
\r
867 v2[352 + pos] = new_v25;
\r
868 v2[368 + pos] = new_v24;
\r
869 v2[384 + pos] = new_v23;
\r
870 v2[400 + pos] = new_v22;
\r
871 v2[416 + pos] = new_v21;
\r
872 v2[432 + pos] = new_v20;
\r
873 v2[448 + pos] = new_v19;
\r
874 v2[464 + pos] = new_v18;
\r
875 v2[480 + pos] = new_v17;
\r
876 v2[496 + pos] = new_v16;
\r
880 * Compute PCM Samples.
\r
883 @LOC("OUT") private float[] _tmpOut = new float[32];
\r
885 private void compute_pcm_samples0() {
\r
888 // final float[] vp = actual_v;
\r
889 // int inc = v_inc;
\r
890 // final float[] tmpOut = _tmpOut;
\r
893 // fat chance of having this loop unroll
\r
894 for (int i = 0; i < 32; i++) {
\r
896 // final float[] dp = d16[i];
\r
898 (float) (((v1[0 + dvp] * d16[i][0]) + (v1[15 + dvp] * d16[i][1])
\r
899 + (v1[14 + dvp] * d16[i][2]) + (v1[13 + dvp] * d16[i][3])
\r
900 + (v1[12 + dvp] * d16[i][4]) + (v1[11 + dvp] * d16[i][5])
\r
901 + (v1[10 + dvp] * d16[i][6]) + (v1[9 + dvp] * d16[i][7])
\r
902 + (v1[8 + dvp] * d16[i][8]) + (v1[7 + dvp] * d16[i][9])
\r
903 + (v1[6 + dvp] * d16[i][10]) + (v1[5 + dvp] * d16[i][11])
\r
904 + (v1[4 + dvp] * d16[i][12]) + (v1[3 + dvp] * d16[i][13])
\r
905 + (v1[2 + dvp] * d16[i][14]) + (v1[1 + dvp] * d16[i][15])) * scalefactor);
\r
907 _tmpOut[i] = pcm_sample;
\r
912 // final float[] vp = actual_v;
\r
913 // int inc = v_inc;
\r
914 // final float[] tmpOut = _tmpOut;
\r
917 // fat chance of having this loop unroll
\r
918 for (int i = 0; i < 32; i++) {
\r
920 // final float[] dp = d16[i];
\r
922 (float) (((v2[0 + dvp] * d16[i][0]) + (v2[15 + dvp] * d16[i][1])
\r
923 + (v2[14 + dvp] * d16[i][2]) + (v2[13 + dvp] * d16[i][3])
\r
924 + (v2[12 + dvp] * d16[i][4]) + (v2[11 + dvp] * d16[i][5])
\r
925 + (v2[10 + dvp] * d16[i][6]) + (v2[9 + dvp] * d16[i][7])
\r
926 + (v2[8 + dvp] * d16[i][8]) + (v2[7 + dvp] * d16[i][9])
\r
927 + (v2[6 + dvp] * d16[i][10]) + (v2[5 + dvp] * d16[i][11])
\r
928 + (v2[4 + dvp] * d16[i][12]) + (v2[3 + dvp] * d16[i][13])
\r
929 + (v2[2 + dvp] * d16[i][14]) + (v2[1 + dvp] * d16[i][15])) * scalefactor);
\r
931 _tmpOut[i] = pcm_sample;
\r
939 private void compute_pcm_samples1() {
\r
942 // final float[] vp = actual_v;
\r
943 // int inc = v_inc;
\r
944 // final float[] tmpOut = _tmpOut;
\r
947 // fat chance of having this loop unroll
\r
948 for (int i = 0; i < 32; i++) {
\r
949 // final float[] dp = d16[i];
\r
953 (float) (((v1[1 + dvp] * d16[i][0]) + (v1[0 + dvp] * d16[i][1])
\r
954 + (v1[15 + dvp] * d16[i][2]) + (v1[14 + dvp] * d16[i][3])
\r
955 + (v1[13 + dvp] * d16[i][4]) + (v1[12 + dvp] * d16[i][5])
\r
956 + (v1[11 + dvp] * d16[i][6]) + (v1[10 + dvp] * d16[i][7])
\r
957 + (v1[9 + dvp] * d16[i][8]) + (v1[8 + dvp] * d16[i][9])
\r
958 + (v1[7 + dvp] * d16[i][10]) + (v1[6 + dvp] * d16[i][11])
\r
959 + (v1[5 + dvp] * d16[i][12]) + (v1[4 + dvp] * d16[i][13])
\r
960 + (v1[3 + dvp] * d16[i][14]) + (v1[2 + dvp] * d16[i][15])) * scalefactor);
\r
962 _tmpOut[i] = pcm_sample;
\r
967 // final float[] vp = actual_v;
\r
968 // int inc = v_inc;
\r
969 // final float[] tmpOut = _tmpOut;
\r
972 // fat chance of having this loop unroll
\r
973 for (int i = 0; i < 32; i++) {
\r
974 // final float[] dp = d16[i];
\r
978 (float) (((v2[1 + dvp] * d16[i][0]) + (v2[0 + dvp] * d16[i][1])
\r
979 + (v2[15 + dvp] * d16[i][2]) + (v2[14 + dvp] * d16[i][3])
\r
980 + (v2[13 + dvp] * d16[i][4]) + (v2[12 + dvp] * d16[i][5])
\r
981 + (v2[11 + dvp] * d16[i][6]) + (v2[10 + dvp] * d16[i][7])
\r
982 + (v2[9 + dvp] * d16[i][8]) + (v2[8 + dvp] * d16[i][9])
\r
983 + (v2[7 + dvp] * d16[i][10]) + (v2[6 + dvp] * d16[i][11])
\r
984 + (v2[5 + dvp] * d16[i][12]) + (v2[4 + dvp] * d16[i][13])
\r
985 + (v2[3 + dvp] * d16[i][14]) + (v2[2 + dvp] * d16[i][15])) * scalefactor);
\r
987 _tmpOut[i] = pcm_sample;
\r
995 private void compute_pcm_samples2() {
\r
998 // final float[] vp = actual_v;
\r
999 // int inc = v_inc;
\r
1000 // final float[] tmpOut = _tmpOut;
\r
1003 // fat chance of having this loop unroll
\r
1004 for (int i = 0; i < 32; i++) {
\r
1005 // final float[] dp = d16[i];
\r
1009 (float) (((v1[2 + dvp] * d16[i][0]) + (v1[1 + dvp] * d16[i][1])
\r
1010 + (v1[0 + dvp] * d16[i][2]) + (v1[15 + dvp] * d16[i][3])
\r
1011 + (v1[14 + dvp] * d16[i][4]) + (v1[13 + dvp] * d16[i][5])
\r
1012 + (v1[12 + dvp] * d16[i][6]) + (v1[11 + dvp] * d16[i][7])
\r
1013 + (v1[10 + dvp] * d16[i][8]) + (v1[9 + dvp] * d16[i][9])
\r
1014 + (v1[8 + dvp] * d16[i][10]) + (v1[7 + dvp] * d16[i][11])
\r
1015 + (v1[6 + dvp] * d16[i][12]) + (v1[5 + dvp] * d16[i][13])
\r
1016 + (v1[4 + dvp] * d16[i][14]) + (v1[3 + dvp] * d16[i][15])) * scalefactor);
\r
1018 _tmpOut[i] = pcm_sample;
\r
1023 // final float[] vp = actual_v;
\r
1024 // int inc = v_inc;
\r
1025 // final float[] tmpOut = _tmpOut;
\r
1028 // fat chance of having this loop unroll
\r
1029 for (int i = 0; i < 32; i++) {
\r
1030 // final float[] dp = d16[i];
\r
1034 (float) (((v2[2 + dvp] * d16[i][0]) + (v2[1 + dvp] * d16[i][1])
\r
1035 + (v2[0 + dvp] * d16[i][2]) + (v2[15 + dvp] * d16[i][3])
\r
1036 + (v2[14 + dvp] * d16[i][4]) + (v2[13 + dvp] * d16[i][5])
\r
1037 + (v2[12 + dvp] * d16[i][6]) + (v2[11 + dvp] * d16[i][7])
\r
1038 + (v2[10 + dvp] * d16[i][8]) + (v2[9 + dvp] * d16[i][9])
\r
1039 + (v2[8 + dvp] * d16[i][10]) + (v2[7 + dvp] * d16[i][11])
\r
1040 + (v2[6 + dvp] * d16[i][12]) + (v2[5 + dvp] * d16[i][13])
\r
1041 + (v2[4 + dvp] * d16[i][14]) + (v2[3 + dvp] * d16[i][15])) * scalefactor);
\r
1043 _tmpOut[i] = pcm_sample;
\r
1051 private void compute_pcm_samples3() {
\r
1054 // final float[] vp = actual_v;
\r
1057 // int inc = v_inc;
\r
1058 // final float[] tmpOut = _tmpOut;
\r
1061 // fat chance of having this loop unroll
\r
1062 for (int i = 0; i < 32; i++) {
\r
1063 // final float[] dp = d16[i];
\r
1067 (float) (((v1[3 + dvp] * d16[i][0]) + (v1[2 + dvp] * d16[i][1])
\r
1068 + (v1[1 + dvp] * d16[i][2]) + (v1[0 + dvp] * d16[i][3])
\r
1069 + (v1[15 + dvp] * d16[i][4]) + (v1[14 + dvp] * d16[i][5])
\r
1070 + (v1[13 + dvp] * d16[i][6]) + (v1[12 + dvp] * d16[i][7])
\r
1071 + (v1[11 + dvp] * d16[i][8]) + (v1[10 + dvp] * d16[i][9])
\r
1072 + (v1[9 + dvp] * d16[i][10]) + (v1[8 + dvp] * d16[i][11])
\r
1073 + (v1[7 + dvp] * d16[i][12]) + (v1[6 + dvp] * d16[i][13])
\r
1074 + (v1[5 + dvp] * d16[i][14]) + (v1[4 + dvp] * d16[i][15])) * scalefactor);
\r
1076 _tmpOut[i] = pcm_sample;
\r
1081 // final float[] vp = actual_v;
\r
1084 // int inc = v_inc;
\r
1085 // final float[] tmpOut = _tmpOut;
\r
1088 // fat chance of having this loop unroll
\r
1089 for (int i = 0; i < 32; i++) {
\r
1090 // final float[] dp = d16[i];
\r
1094 (float) (((v2[3 + dvp] * d16[i][0]) + (v2[2 + dvp] * d16[i][1])
\r
1095 + (v2[1 + dvp] * d16[i][2]) + (v2[0 + dvp] * d16[i][3])
\r
1096 + (v2[15 + dvp] * d16[i][4]) + (v2[14 + dvp] * d16[i][5])
\r
1097 + (v2[13 + dvp] * d16[i][6]) + (v2[12 + dvp] * d16[i][7])
\r
1098 + (v2[11 + dvp] * d16[i][8]) + (v2[10 + dvp] * d16[i][9])
\r
1099 + (v2[9 + dvp] * d16[i][10]) + (v2[8 + dvp] * d16[i][11])
\r
1100 + (v2[7 + dvp] * d16[i][12]) + (v2[6 + dvp] * d16[i][13])
\r
1101 + (v2[5 + dvp] * d16[i][14]) + (v2[4 + dvp] * d16[i][15])) * scalefactor);
\r
1103 _tmpOut[i] = pcm_sample;
\r
1111 private void compute_pcm_samples4() {
\r
1114 // final float[] vp = actual_v;
\r
1116 // int inc = v_inc;
\r
1117 // final float[] tmpOut = _tmpOut;
\r
1120 // fat chance of having this loop unroll
\r
1121 for (int i = 0; i < 32; i++) {
\r
1122 // final float[] dp = d16[i];
\r
1126 (float) (((v1[4 + dvp] * d16[i][0]) + (v1[3 + dvp] * d16[i][1])
\r
1127 + (v1[2 + dvp] * d16[i][2]) + (v1[1 + dvp] * d16[i][3]) + (v1[0 + dvp] * d16[i][4])
\r
1128 + (v1[15 + dvp] * d16[i][5]) + (v1[14 + dvp] * d16[i][6])
\r
1129 + (v1[13 + dvp] * d16[i][7]) + (v1[12 + dvp] * d16[i][8])
\r
1130 + (v1[11 + dvp] * d16[i][9]) + (v1[10 + dvp] * d16[i][10])
\r
1131 + (v1[9 + dvp] * d16[i][11]) + (v1[8 + dvp] * d16[i][12])
\r
1132 + (v1[7 + dvp] * d16[i][13]) + (v1[6 + dvp] * d16[i][14]) + (v1[5 + dvp] * d16[i][15])) * scalefactor);
\r
1134 _tmpOut[i] = pcm_sample;
\r
1139 // final float[] vp = actual_v;
\r
1141 // int inc = v_inc;
\r
1142 // final float[] tmpOut = _tmpOut;
\r
1145 // fat chance of having this loop unroll
\r
1146 for (int i = 0; i < 32; i++) {
\r
1147 // final float[] dp = d16[i];
\r
1151 (float) (((v2[4 + dvp] * d16[i][0]) + (v2[3 + dvp] * d16[i][1])
\r
1152 + (v2[2 + dvp] * d16[i][2]) + (v2[1 + dvp] * d16[i][3]) + (v2[0 + dvp] * d16[i][4])
\r
1153 + (v2[15 + dvp] * d16[i][5]) + (v2[14 + dvp] * d16[i][6])
\r
1154 + (v2[13 + dvp] * d16[i][7]) + (v2[12 + dvp] * d16[i][8])
\r
1155 + (v2[11 + dvp] * d16[i][9]) + (v2[10 + dvp] * d16[i][10])
\r
1156 + (v2[9 + dvp] * d16[i][11]) + (v2[8 + dvp] * d16[i][12])
\r
1157 + (v2[7 + dvp] * d16[i][13]) + (v2[6 + dvp] * d16[i][14]) + (v2[5 + dvp] * d16[i][15])) * scalefactor);
\r
1159 _tmpOut[i] = pcm_sample;
\r
1167 private void compute_pcm_samples5() {
\r
1170 // final float[] vp = actual_v;
\r
1172 // int inc = v_inc;
\r
1173 // final float[] tmpOut = _tmpOut;
\r
1176 // fat chance of having this loop unroll
\r
1177 for (int i = 0; i < 32; i++) {
\r
1178 // final float[] dp = d16[i];
\r
1182 (float) (((v1[5 + dvp] * d16[i][0]) + (v1[4 + dvp] * d16[i][1])
\r
1183 + (v1[3 + dvp] * d16[i][2]) + (v1[2 + dvp] * d16[i][3]) + (v1[1 + dvp] * d16[i][4])
\r
1184 + (v1[0 + dvp] * d16[i][5]) + (v1[15 + dvp] * d16[i][6])
\r
1185 + (v1[14 + dvp] * d16[i][7]) + (v1[13 + dvp] * d16[i][8])
\r
1186 + (v1[12 + dvp] * d16[i][9]) + (v1[11 + dvp] * d16[i][10])
\r
1187 + (v1[10 + dvp] * d16[i][11]) + (v1[9 + dvp] * d16[i][12])
\r
1188 + (v1[8 + dvp] * d16[i][13]) + (v1[7 + dvp] * d16[i][14]) + (v1[6 + dvp] * d16[i][15])) * scalefactor);
\r
1190 _tmpOut[i] = pcm_sample;
\r
1195 // final float[] vp = actual_v;
\r
1197 // int inc = v_inc;
\r
1198 // final float[] tmpOut = _tmpOut;
\r
1201 // fat chance of having this loop unroll
\r
1202 for (int i = 0; i < 32; i++) {
\r
1203 // final float[] dp = d16[i];
\r
1207 (float) (((v2[5 + dvp] * d16[i][0]) + (v2[4 + dvp] * d16[i][1])
\r
1208 + (v2[3 + dvp] * d16[i][2]) + (v2[2 + dvp] * d16[i][3]) + (v2[1 + dvp] * d16[i][4])
\r
1209 + (v2[0 + dvp] * d16[i][5]) + (v2[15 + dvp] * d16[i][6])
\r
1210 + (v2[14 + dvp] * d16[i][7]) + (v2[13 + dvp] * d16[i][8])
\r
1211 + (v2[12 + dvp] * d16[i][9]) + (v2[11 + dvp] * d16[i][10])
\r
1212 + (v2[10 + dvp] * d16[i][11]) + (v2[9 + dvp] * d16[i][12])
\r
1213 + (v2[8 + dvp] * d16[i][13]) + (v2[7 + dvp] * d16[i][14]) + (v2[6 + dvp] * d16[i][15])) * scalefactor);
\r
1215 _tmpOut[i] = pcm_sample;
\r
1223 private void compute_pcm_samples6() {
\r
1227 // final float[] vp = actual_v;
\r
1228 // int inc = v_inc;
\r
1229 // final float[] tmpOut = _tmpOut;
\r
1232 // fat chance of having this loop unroll
\r
1233 for (int i = 0; i < 32; i++) {
\r
1234 // final float[] dp = d16[i];
\r
1238 (float) (((v1[6 + dvp] * d16[i][0]) + (v1[5 + dvp] * d16[i][1])
\r
1239 + (v1[4 + dvp] * d16[i][2]) + (v1[3 + dvp] * d16[i][3]) + (v1[2 + dvp] * d16[i][4])
\r
1240 + (v1[1 + dvp] * d16[i][5]) + (v1[0 + dvp] * d16[i][6])
\r
1241 + (v1[15 + dvp] * d16[i][7]) + (v1[14 + dvp] * d16[i][8])
\r
1242 + (v1[13 + dvp] * d16[i][9]) + (v1[12 + dvp] * d16[i][10])
\r
1243 + (v1[11 + dvp] * d16[i][11]) + (v1[10 + dvp] * d16[i][12])
\r
1244 + (v1[9 + dvp] * d16[i][13]) + (v1[8 + dvp] * d16[i][14]) + (v1[7 + dvp] * d16[i][15])) * scalefactor);
\r
1246 _tmpOut[i] = pcm_sample;
\r
1252 // final float[] vp = actual_v;
\r
1253 // int inc = v_inc;
\r
1254 // final float[] tmpOut = _tmpOut;
\r
1257 // fat chance of having this loop unroll
\r
1258 for (int i = 0; i < 32; i++) {
\r
1259 // final float[] dp = d16[i];
\r
1263 (float) (((v2[6 + dvp] * d16[i][0]) + (v2[5 + dvp] * d16[i][1])
\r
1264 + (v2[4 + dvp] * d16[i][2]) + (v2[3 + dvp] * d16[i][3]) + (v2[2 + dvp] * d16[i][4])
\r
1265 + (v2[1 + dvp] * d16[i][5]) + (v2[0 + dvp] * d16[i][6])
\r
1266 + (v2[15 + dvp] * d16[i][7]) + (v2[14 + dvp] * d16[i][8])
\r
1267 + (v2[13 + dvp] * d16[i][9]) + (v2[12 + dvp] * d16[i][10])
\r
1268 + (v2[11 + dvp] * d16[i][11]) + (v2[10 + dvp] * d16[i][12])
\r
1269 + (v2[9 + dvp] * d16[i][13]) + (v2[8 + dvp] * d16[i][14]) + (v2[7 + dvp] * d16[i][15])) * scalefactor);
\r
1271 _tmpOut[i] = pcm_sample;
\r
1279 private void compute_pcm_samples7() {
\r
1282 // final float[] vp = actual_v;
\r
1284 // int inc = v_inc;
\r
1285 // final float[] tmpOut = _tmpOut;
\r
1288 // fat chance of having this loop unroll
\r
1289 for (int i = 0; i < 32; i++) {
\r
1290 // final float[] dp = d16[i];
\r
1294 (float) (((v1[7 + dvp] * d16[i][0]) + (v1[6 + dvp] * d16[i][1])
\r
1295 + (v1[5 + dvp] * d16[i][2]) + (v1[4 + dvp] * d16[i][3]) + (v1[3 + dvp] * d16[i][4])
\r
1296 + (v1[2 + dvp] * d16[i][5]) + (v1[1 + dvp] * d16[i][6]) + (v1[0 + dvp] * d16[i][7])
\r
1297 + (v1[15 + dvp] * d16[i][8]) + (v1[14 + dvp] * d16[i][9])
\r
1298 + (v1[13 + dvp] * d16[i][10]) + (v1[12 + dvp] * d16[i][11])
\r
1299 + (v1[11 + dvp] * d16[i][12]) + (v1[10 + dvp] * d16[i][13])
\r
1300 + (v1[9 + dvp] * d16[i][14]) + (v1[8 + dvp] * d16[i][15])) * scalefactor);
\r
1302 _tmpOut[i] = pcm_sample;
\r
1307 // final float[] vp = actual_v;
\r
1309 // int inc = v_inc;
\r
1310 // final float[] tmpOut = _tmpOut;
\r
1313 // fat chance of having this loop unroll
\r
1314 for (int i = 0; i < 32; i++) {
\r
1315 // final float[] dp = d16[i];
\r
1319 (float) (((v2[7 + dvp] * d16[i][0]) + (v2[6 + dvp] * d16[i][1])
\r
1320 + (v2[5 + dvp] * d16[i][2]) + (v2[4 + dvp] * d16[i][3]) + (v2[3 + dvp] * d16[i][4])
\r
1321 + (v2[2 + dvp] * d16[i][5]) + (v2[1 + dvp] * d16[i][6]) + (v2[0 + dvp] * d16[i][7])
\r
1322 + (v2[15 + dvp] * d16[i][8]) + (v2[14 + dvp] * d16[i][9])
\r
1323 + (v2[13 + dvp] * d16[i][10]) + (v2[12 + dvp] * d16[i][11])
\r
1324 + (v2[11 + dvp] * d16[i][12]) + (v2[10 + dvp] * d16[i][13])
\r
1325 + (v2[9 + dvp] * d16[i][14]) + (v2[8 + dvp] * d16[i][15])) * scalefactor);
\r
1327 _tmpOut[i] = pcm_sample;
\r
1335 private void compute_pcm_samples8() {
\r
1339 // final float[] vp = actual_v;
\r
1341 // int inc = v_inc;
\r
1342 // final float[] tmpOut = _tmpOut;
\r
1345 // fat chance of having this loop unroll
\r
1346 for (int i = 0; i < 32; i++) {
\r
1347 // final float[] dp = d16[i];
\r
1351 (float) (((v1[8 + dvp] * d16[i][0]) + (v1[7 + dvp] * d16[i][1])
\r
1352 + (v1[6 + dvp] * d16[i][2]) + (v1[5 + dvp] * d16[i][3]) + (v1[4 + dvp] * d16[i][4])
\r
1353 + (v1[3 + dvp] * d16[i][5]) + (v1[2 + dvp] * d16[i][6]) + (v1[1 + dvp] * d16[i][7])
\r
1354 + (v1[0 + dvp] * d16[i][8]) + (v1[15 + dvp] * d16[i][9])
\r
1355 + (v1[14 + dvp] * d16[i][10]) + (v1[13 + dvp] * d16[i][11])
\r
1356 + (v1[12 + dvp] * d16[i][12]) + (v1[11 + dvp] * d16[i][13])
\r
1357 + (v1[10 + dvp] * d16[i][14]) + (v1[9 + dvp] * d16[i][15])) * scalefactor);
\r
1359 _tmpOut[i] = pcm_sample;
\r
1365 // final float[] vp = actual_v;
\r
1367 // int inc = v_inc;
\r
1368 // final float[] tmpOut = _tmpOut;
\r
1371 // fat chance of having this loop unroll
\r
1372 for (int i = 0; i < 32; i++) {
\r
1373 // final float[] dp = d16[i];
\r
1377 (float) (((v2[8 + dvp] * d16[i][0]) + (v2[7 + dvp] * d16[i][1])
\r
1378 + (v2[6 + dvp] * d16[i][2]) + (v2[5 + dvp] * d16[i][3]) + (v2[4 + dvp] * d16[i][4])
\r
1379 + (v2[3 + dvp] * d16[i][5]) + (v2[2 + dvp] * d16[i][6]) + (v2[1 + dvp] * d16[i][7])
\r
1380 + (v2[0 + dvp] * d16[i][8]) + (v2[15 + dvp] * d16[i][9])
\r
1381 + (v2[14 + dvp] * d16[i][10]) + (v2[13 + dvp] * d16[i][11])
\r
1382 + (v2[12 + dvp] * d16[i][12]) + (v2[11 + dvp] * d16[i][13])
\r
1383 + (v2[10 + dvp] * d16[i][14]) + (v2[9 + dvp] * d16[i][15])) * scalefactor);
\r
1385 _tmpOut[i] = pcm_sample;
\r
1393 private void compute_pcm_samples9() {
\r
1396 // final float[] vp = actual_v;
\r
1398 // int inc = v_inc;
\r
1399 // final float[] tmpOut = _tmpOut;
\r
1402 // fat chance of having this loop unroll
\r
1403 for (int i = 0; i < 32; i++) {
\r
1404 // final float[] dp = d16[i];
\r
1408 (float) (((v1[9 + dvp] * d16[i][0]) + (v1[8 + dvp] * d16[i][1])
\r
1409 + (v1[7 + dvp] * d16[i][2]) + (v1[6 + dvp] * d16[i][3]) + (v1[5 + dvp] * d16[i][4])
\r
1410 + (v1[4 + dvp] * d16[i][5]) + (v1[3 + dvp] * d16[i][6]) + (v1[2 + dvp] * d16[i][7])
\r
1411 + (v1[1 + dvp] * d16[i][8]) + (v1[0 + dvp] * d16[i][9])
\r
1412 + (v1[15 + dvp] * d16[i][10]) + (v1[14 + dvp] * d16[i][11])
\r
1413 + (v1[13 + dvp] * d16[i][12]) + (v1[12 + dvp] * d16[i][13])
\r
1414 + (v1[11 + dvp] * d16[i][14]) + (v1[10 + dvp] * d16[i][15])) * scalefactor);
\r
1416 _tmpOut[i] = pcm_sample;
\r
1421 // final float[] vp = actual_v;
\r
1423 // int inc = v_inc;
\r
1424 // final float[] tmpOut = _tmpOut;
\r
1427 // fat chance of having this loop unroll
\r
1428 for (int i = 0; i < 32; i++) {
\r
1429 // final float[] dp = d16[i];
\r
1433 (float) (((v2[9 + dvp] * d16[i][0]) + (v2[8 + dvp] * d16[i][1])
\r
1434 + (v2[7 + dvp] * d16[i][2]) + (v2[6 + dvp] * d16[i][3]) + (v2[5 + dvp] * d16[i][4])
\r
1435 + (v2[4 + dvp] * d16[i][5]) + (v2[3 + dvp] * d16[i][6]) + (v2[2 + dvp] * d16[i][7])
\r
1436 + (v2[1 + dvp] * d16[i][8]) + (v2[0 + dvp] * d16[i][9])
\r
1437 + (v2[15 + dvp] * d16[i][10]) + (v2[14 + dvp] * d16[i][11])
\r
1438 + (v2[13 + dvp] * d16[i][12]) + (v2[12 + dvp] * d16[i][13])
\r
1439 + (v2[11 + dvp] * d16[i][14]) + (v2[10 + dvp] * d16[i][15])) * scalefactor);
\r
1441 _tmpOut[i] = pcm_sample;
\r
1449 private void compute_pcm_samples10() {
\r
1451 // final float[] vp = actual_v;
\r
1452 // int inc = v_inc;
\r
1453 // final float[] tmpOut = _tmpOut;
\r
1456 // fat chance of having this loop unroll
\r
1457 for (int i = 0; i < 32; i++) {
\r
1458 // final float[] dp = d16[i];
\r
1462 (float) (((v1[10 + dvp] * d16[i][0]) + (v1[9 + dvp] * d16[i][1])
\r
1463 + (v1[8 + dvp] * d16[i][2]) + (v1[7 + dvp] * d16[i][3]) + (v1[6 + dvp] * d16[i][4])
\r
1464 + (v1[5 + dvp] * d16[i][5]) + (v1[4 + dvp] * d16[i][6]) + (v1[3 + dvp] * d16[i][7])
\r
1465 + (v1[2 + dvp] * d16[i][8]) + (v1[1 + dvp] * d16[i][9])
\r
1466 + (v1[0 + dvp] * d16[i][10]) + (v1[15 + dvp] * d16[i][11])
\r
1467 + (v1[14 + dvp] * d16[i][12]) + (v1[13 + dvp] * d16[i][13])
\r
1468 + (v1[12 + dvp] * d16[i][14]) + (v1[11 + dvp] * d16[i][15])) * scalefactor);
\r
1470 _tmpOut[i] = pcm_sample;
\r
1475 // final float[] vp = actual_v;
\r
1476 // int inc = v_inc;
\r
1477 // final float[] tmpOut = _tmpOut;
\r
1480 // fat chance of having this loop unroll
\r
1481 for (int i = 0; i < 32; i++) {
\r
1482 // final float[] dp = d16[i];
\r
1486 (float) (((v2[10 + dvp] * d16[i][0]) + (v2[9 + dvp] * d16[i][1])
\r
1487 + (v2[8 + dvp] * d16[i][2]) + (v2[7 + dvp] * d16[i][3]) + (v2[6 + dvp] * d16[i][4])
\r
1488 + (v2[5 + dvp] * d16[i][5]) + (v2[4 + dvp] * d16[i][6]) + (v2[3 + dvp] * d16[i][7])
\r
1489 + (v2[2 + dvp] * d16[i][8]) + (v2[1 + dvp] * d16[i][9])
\r
1490 + (v2[0 + dvp] * d16[i][10]) + (v2[15 + dvp] * d16[i][11])
\r
1491 + (v2[14 + dvp] * d16[i][12]) + (v2[13 + dvp] * d16[i][13])
\r
1492 + (v2[12 + dvp] * d16[i][14]) + (v2[11 + dvp] * d16[i][15])) * scalefactor);
\r
1494 _tmpOut[i] = pcm_sample;
\r
1502 private void compute_pcm_samples11() {
\r
1505 // final float[] vp = actual_v;
\r
1507 // int inc = v_inc;
\r
1508 // final float[] tmpOut = _tmpOut;
\r
1511 // fat chance of having this loop unroll
\r
1512 for (int i = 0; i < 32; i++) {
\r
1513 // final float[] dp = d16[i];
\r
1517 (float) (((v1[11 + dvp] * d16[i][0]) + (v1[10 + dvp] * d16[i][1])
\r
1518 + (v1[9 + dvp] * d16[i][2]) + (v1[8 + dvp] * d16[i][3]) + (v1[7 + dvp] * d16[i][4])
\r
1519 + (v1[6 + dvp] * d16[i][5]) + (v1[5 + dvp] * d16[i][6]) + (v1[4 + dvp] * d16[i][7])
\r
1520 + (v1[3 + dvp] * d16[i][8]) + (v1[2 + dvp] * d16[i][9])
\r
1521 + (v1[1 + dvp] * d16[i][10]) + (v1[0 + dvp] * d16[i][11])
\r
1522 + (v1[15 + dvp] * d16[i][12]) + (v1[14 + dvp] * d16[i][13])
\r
1523 + (v1[13 + dvp] * d16[i][14]) + (v1[12 + dvp] * d16[i][15])) * scalefactor);
\r
1525 _tmpOut[i] = pcm_sample;
\r
1530 // final float[] vp = actual_v;
\r
1532 // int inc = v_inc;
\r
1533 // final float[] tmpOut = _tmpOut;
\r
1536 // fat chance of having this loop unroll
\r
1537 for (int i = 0; i < 32; i++) {
\r
1538 // final float[] dp = d16[i];
\r
1542 (float) (((v2[11 + dvp] * d16[i][0]) + (v2[10 + dvp] * d16[i][1])
\r
1543 + (v2[9 + dvp] * d16[i][2]) + (v2[8 + dvp] * d16[i][3]) + (v2[7 + dvp] * d16[i][4])
\r
1544 + (v2[6 + dvp] * d16[i][5]) + (v2[5 + dvp] * d16[i][6]) + (v2[4 + dvp] * d16[i][7])
\r
1545 + (v2[3 + dvp] * d16[i][8]) + (v2[2 + dvp] * d16[i][9])
\r
1546 + (v2[1 + dvp] * d16[i][10]) + (v2[0 + dvp] * d16[i][11])
\r
1547 + (v2[15 + dvp] * d16[i][12]) + (v2[14 + dvp] * d16[i][13])
\r
1548 + (v2[13 + dvp] * d16[i][14]) + (v2[12 + dvp] * d16[i][15])) * scalefactor);
\r
1550 _tmpOut[i] = pcm_sample;
\r
1558 private void compute_pcm_samples12() {
\r
1561 // final float[] vp = actual_v;
\r
1562 // int inc = v_inc;
\r
1563 // final float[] tmpOut = _tmpOut;
\r
1566 // fat chance of having this loop unroll
\r
1567 for (int i = 0; i < 32; i++) {
\r
1568 // final float[] dp = d16[i];
\r
1572 (float) (((v1[12 + dvp] * d16[i][0]) + (v1[11 + dvp] * d16[i][1])
\r
1573 + (v1[10 + dvp] * d16[i][2]) + (v1[9 + dvp] * d16[i][3])
\r
1574 + (v1[8 + dvp] * d16[i][4]) + (v1[7 + dvp] * d16[i][5]) + (v1[6 + dvp] * d16[i][6])
\r
1575 + (v1[5 + dvp] * d16[i][7]) + (v1[4 + dvp] * d16[i][8]) + (v1[3 + dvp] * d16[i][9])
\r
1576 + (v1[2 + dvp] * d16[i][10]) + (v1[1 + dvp] * d16[i][11])
\r
1577 + (v1[0 + dvp] * d16[i][12]) + (v1[15 + dvp] * d16[i][13])
\r
1578 + (v1[14 + dvp] * d16[i][14]) + (v1[13 + dvp] * d16[i][15])) * scalefactor);
\r
1580 _tmpOut[i] = pcm_sample;
\r
1585 // final float[] vp = actual_v;
\r
1586 // int inc = v_inc;
\r
1587 // final float[] tmpOut = _tmpOut;
\r
1590 // fat chance of having this loop unroll
\r
1591 for (int i = 0; i < 32; i++) {
\r
1592 // final float[] dp = d16[i];
\r
1596 (float) (((v2[12 + dvp] * d16[i][0]) + (v2[11 + dvp] * d16[i][1])
\r
1597 + (v2[10 + dvp] * d16[i][2]) + (v2[9 + dvp] * d16[i][3])
\r
1598 + (v2[8 + dvp] * d16[i][4]) + (v2[7 + dvp] * d16[i][5]) + (v2[6 + dvp] * d16[i][6])
\r
1599 + (v2[5 + dvp] * d16[i][7]) + (v2[4 + dvp] * d16[i][8]) + (v2[3 + dvp] * d16[i][9])
\r
1600 + (v2[2 + dvp] * d16[i][10]) + (v2[1 + dvp] * d16[i][11])
\r
1601 + (v2[0 + dvp] * d16[i][12]) + (v2[15 + dvp] * d16[i][13])
\r
1602 + (v2[14 + dvp] * d16[i][14]) + (v2[13 + dvp] * d16[i][15])) * scalefactor);
\r
1604 _tmpOut[i] = pcm_sample;
\r
1612 private void compute_pcm_samples13() {
\r
1615 // final float[] vp = actual_v;
\r
1617 // int inc = v_inc;
\r
1618 // final float[] tmpOut = _tmpOut;
\r
1621 // fat chance of having this loop unroll
\r
1622 for (int i = 0; i < 32; i++) {
\r
1623 // final float[] dp = d16[i];
\r
1627 (float) (((v1[13 + dvp] * d16[i][0]) + (v1[12 + dvp] * d16[i][1])
\r
1628 + (v1[11 + dvp] * d16[i][2]) + (v1[10 + dvp] * d16[i][3])
\r
1629 + (v1[9 + dvp] * d16[i][4]) + (v1[8 + dvp] * d16[i][5]) + (v1[7 + dvp] * d16[i][6])
\r
1630 + (v1[6 + dvp] * d16[i][7]) + (v1[5 + dvp] * d16[i][8]) + (v1[4 + dvp] * d16[i][9])
\r
1631 + (v1[3 + dvp] * d16[i][10]) + (v1[2 + dvp] * d16[i][11])
\r
1632 + (v1[1 + dvp] * d16[i][12]) + (v1[0 + dvp] * d16[i][13])
\r
1633 + (v1[15 + dvp] * d16[i][14]) + (v1[14 + dvp] * d16[i][15])) * scalefactor);
\r
1635 _tmpOut[i] = pcm_sample;
\r
1640 // final float[] vp = actual_v;
\r
1642 // int inc = v_inc;
\r
1643 // final float[] tmpOut = _tmpOut;
\r
1646 // fat chance of having this loop unroll
\r
1647 for (int i = 0; i < 32; i++) {
\r
1648 // final float[] dp = d16[i];
\r
1652 (float) (((v2[13 + dvp] * d16[i][0]) + (v2[12 + dvp] * d16[i][1])
\r
1653 + (v2[11 + dvp] * d16[i][2]) + (v2[10 + dvp] * d16[i][3])
\r
1654 + (v2[9 + dvp] * d16[i][4]) + (v2[8 + dvp] * d16[i][5]) + (v2[7 + dvp] * d16[i][6])
\r
1655 + (v2[6 + dvp] * d16[i][7]) + (v2[5 + dvp] * d16[i][8]) + (v2[4 + dvp] * d16[i][9])
\r
1656 + (v2[3 + dvp] * d16[i][10]) + (v2[2 + dvp] * d16[i][11])
\r
1657 + (v2[1 + dvp] * d16[i][12]) + (v2[0 + dvp] * d16[i][13])
\r
1658 + (v2[15 + dvp] * d16[i][14]) + (v2[14 + dvp] * d16[i][15])) * scalefactor);
\r
1660 _tmpOut[i] = pcm_sample;
\r
1668 private void compute_pcm_samples14() {
\r
1671 // final float[] vp = actual_v;
\r
1673 // int inc = v_inc;
\r
1674 // final float[] tmpOut = _tmpOut;
\r
1677 // fat chance of having this loop unroll
\r
1678 for (int i = 0; i < 32; i++) {
\r
1679 // final float[] dp = d16[i];
\r
1683 (float) (((v1[14 + dvp] * d16[i][0]) + (v1[13 + dvp] * d16[i][1])
\r
1684 + (v1[12 + dvp] * d16[i][2]) + (v1[11 + dvp] * d16[i][3])
\r
1685 + (v1[10 + dvp] * d16[i][4]) + (v1[9 + dvp] * d16[i][5])
\r
1686 + (v1[8 + dvp] * d16[i][6]) + (v1[7 + dvp] * d16[i][7]) + (v1[6 + dvp] * d16[i][8])
\r
1687 + (v1[5 + dvp] * d16[i][9]) + (v1[4 + dvp] * d16[i][10])
\r
1688 + (v1[3 + dvp] * d16[i][11]) + (v1[2 + dvp] * d16[i][12])
\r
1689 + (v1[1 + dvp] * d16[i][13]) + (v1[0 + dvp] * d16[i][14]) + (v1[15 + dvp] * d16[i][15])) * scalefactor);
\r
1691 _tmpOut[i] = pcm_sample;
\r
1696 // final float[] vp = actual_v;
\r
1698 // int inc = v_inc;
\r
1699 // final float[] tmpOut = _tmpOut;
\r
1702 // fat chance of having this loop unroll
\r
1703 for (int i = 0; i < 32; i++) {
\r
1704 // final float[] dp = d16[i];
\r
1708 (float) (((v2[14 + dvp] * d16[i][0]) + (v2[13 + dvp] * d16[i][1])
\r
1709 + (v2[12 + dvp] * d16[i][2]) + (v2[11 + dvp] * d16[i][3])
\r
1710 + (v2[10 + dvp] * d16[i][4]) + (v2[9 + dvp] * d16[i][5])
\r
1711 + (v2[8 + dvp] * d16[i][6]) + (v2[7 + dvp] * d16[i][7]) + (v2[6 + dvp] * d16[i][8])
\r
1712 + (v2[5 + dvp] * d16[i][9]) + (v2[4 + dvp] * d16[i][10])
\r
1713 + (v2[3 + dvp] * d16[i][11]) + (v2[2 + dvp] * d16[i][12])
\r
1714 + (v2[1 + dvp] * d16[i][13]) + (v2[0 + dvp] * d16[i][14]) + (v2[15 + dvp] * d16[i][15])) * scalefactor);
\r
1716 _tmpOut[i] = pcm_sample;
\r
1724 private void compute_pcm_samples15() {
\r
1726 // final float[] vp = actual_v;
\r
1728 // int inc = v_inc;
\r
1729 // final float[] tmpOut = _tmpOut;
\r
1732 // fat chance of having this loop unroll
\r
1733 for (int i = 0; i < 32; i++) {
\r
1735 // final float d16[i][] = d16[i];
\r
1737 (float) (((v1[15 + dvp] * d16[i][0]) + (v1[14 + dvp] * d16[i][1])
\r
1738 + (v1[13 + dvp] * d16[i][2]) + (v1[12 + dvp] * d16[i][3])
\r
1739 + (v1[11 + dvp] * d16[i][4]) + (v1[10 + dvp] * d16[i][5])
\r
1740 + (v1[9 + dvp] * d16[i][6]) + (v1[8 + dvp] * d16[i][7]) + (v1[7 + dvp] * d16[i][8])
\r
1741 + (v1[6 + dvp] * d16[i][9]) + (v1[5 + dvp] * d16[i][10])
\r
1742 + (v1[4 + dvp] * d16[i][11]) + (v1[3 + dvp] * d16[i][12])
\r
1743 + (v1[2 + dvp] * d16[i][13]) + (v1[1 + dvp] * d16[i][14]) + (v1[0 + dvp] * d16[i][15])) * scalefactor);
\r
1745 _tmpOut[i] = pcm_sample;
\r
1749 // final float[] vp = actual_v;
\r
1751 // int inc = v_inc;
\r
1752 // final float[] tmpOut = _tmpOut;
\r
1755 // fat chance of having this loop unroll
\r
1756 for (int i = 0; i < 32; i++) {
\r
1758 // final float d16[i][] = d16[i];
\r
1760 (float) (((v2[15 + dvp] * d16[i][0]) + (v2[14 + dvp] * d16[i][1])
\r
1761 + (v2[13 + dvp] * d16[i][2]) + (v2[12 + dvp] * d16[i][3])
\r
1762 + (v2[11 + dvp] * d16[i][4]) + (v2[10 + dvp] * d16[i][5])
\r
1763 + (v2[9 + dvp] * d16[i][6]) + (v2[8 + dvp] * d16[i][7]) + (v2[7 + dvp] * d16[i][8])
\r
1764 + (v2[6 + dvp] * d16[i][9]) + (v2[5 + dvp] * d16[i][10])
\r
1765 + (v2[4 + dvp] * d16[i][11]) + (v2[3 + dvp] * d16[i][12])
\r
1766 + (v2[2 + dvp] * d16[i][13]) + (v2[1 + dvp] * d16[i][14]) + (v2[0 + dvp] * d16[i][15])) * scalefactor);
\r
1768 _tmpOut[i] = pcm_sample;
\r
1775 private void compute_pcm_samples() {
\r
1777 switch (actual_write_pos) {
\r
1779 compute_pcm_samples0();
\r
1782 compute_pcm_samples1();
\r
1785 compute_pcm_samples2();
\r
1788 compute_pcm_samples3();
\r
1791 compute_pcm_samples4();
\r
1794 compute_pcm_samples5();
\r
1797 compute_pcm_samples6();
\r
1800 compute_pcm_samples7();
\r
1803 compute_pcm_samples8();
\r
1806 compute_pcm_samples9();
\r
1809 compute_pcm_samples10();
\r
1812 compute_pcm_samples11();
\r
1815 compute_pcm_samples12();
\r
1818 compute_pcm_samples13();
\r
1821 compute_pcm_samples14();
\r
1824 compute_pcm_samples15();
\r
1828 // if (buffer != null) {
\r
1829 // buffer.appendSamples(channel, _tmpOut);
\r
1831 SampleBufferWrapper.appendSamples(channel, _tmpOut);
\r
1834 * // MDM: I was considering putting in quality control for // low-spec
\r
1835 * CPUs, but the performance gain (about 10-15%) // did not justify the
\r
1836 * considerable drop in audio quality. switch (inc) { case 16:
\r
1837 * buffer.appendSamples(channel, tmpOut); break; case 32: for (int i=0;
\r
1838 * i<16; i++) { buffer.append(channel, (short)tmpOut[i]);
\r
1839 * buffer.append(channel, (short)tmpOut[i]); } break; case 64: for (int i=0;
\r
1840 * i<8; i++) { buffer.append(channel, (short)tmpOut[i]);
\r
1841 * buffer.append(channel, (short)tmpOut[i]); buffer.append(channel,
\r
1842 * (short)tmpOut[i]); buffer.append(channel, (short)tmpOut[i]); } break;
\r
1849 * Calculate 32 PCM samples and put the into the Obuffer-object.
\r
1852 public void calculate_pcm_samples() {
\r
1855 compute_new_v1_v2();
\r
1857 compute_new_v2_v1();
\r
1860 // System.out.println("1.actual_v=" + (actual_v == v1) + " vidx=" + vidx);
\r
1861 // compute_new_v();
\r
1862 // System.out.println("2.actual_v=" + (actual_v == v1) + " vidx=" + vidx);
\r
1863 compute_pcm_samples();
\r
1864 // System.out.println("3.actual_v=" + (actual_v == v1) + " vidx=" + vidx);
\r
1866 actual_write_pos = (actual_write_pos + 1) & 0xf;
\r
1867 // actual_v = (actual_v == v1) ? v2 : v1;
\r
1875 // initialize samples[]:
\r
1876 // for (register float *floatp = samples + 32; floatp > samples; )
\r
1877 // *--floatp = 0.0f;
\r
1879 // MDM: this may not be necessary. The Layer III decoder always
\r
1880 // outputs 32 subband samples, but I haven't checked layer I & II.
\r
1881 for (int p = 0; p < 32; p++)
\r
1882 samples[p] = 0.0f;
\r
1885 private static final double MY_PI = 3.14159265358979323846;
\r
1886 private static final float cos1_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI / 64.0)));
\r
1887 private static final float cos3_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 3.0 / 64.0)));
\r
1888 private static final float cos5_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 5.0 / 64.0)));
\r
1889 private static final float cos7_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 7.0 / 64.0)));
\r
1890 private static final float cos9_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 9.0 / 64.0)));
\r
1891 private static final float cos11_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 11.0 / 64.0)));
\r
1892 private static final float cos13_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 13.0 / 64.0)));
\r
1893 private static final float cos15_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 15.0 / 64.0)));
\r
1894 private static final float cos17_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 17.0 / 64.0)));
\r
1895 private static final float cos19_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 19.0 / 64.0)));
\r
1896 private static final float cos21_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 21.0 / 64.0)));
\r
1897 private static final float cos23_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 23.0 / 64.0)));
\r
1898 private static final float cos25_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 25.0 / 64.0)));
\r
1899 private static final float cos27_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 27.0 / 64.0)));
\r
1900 private static final float cos29_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 29.0 / 64.0)));
\r
1901 private static final float cos31_64 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 31.0 / 64.0)));
\r
1902 private static final float cos1_32 = (float) (1.0 / (2.0 * Math.cos(MY_PI / 32.0)));
\r
1903 private static final float cos3_32 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 3.0 / 32.0)));
\r
1904 private static final float cos5_32 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 5.0 / 32.0)));
\r
1905 private static final float cos7_32 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 7.0 / 32.0)));
\r
1906 private static final float cos9_32 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 9.0 / 32.0)));
\r
1907 private static final float cos11_32 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 11.0 / 32.0)));
\r
1908 private static final float cos13_32 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 13.0 / 32.0)));
\r
1909 private static final float cos15_32 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 15.0 / 32.0)));
\r
1910 private static final float cos1_16 = (float) (1.0 / (2.0 * Math.cos(MY_PI / 16.0)));
\r
1911 private static final float cos3_16 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 3.0 / 16.0)));
\r
1912 private static final float cos5_16 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 5.0 / 16.0)));
\r
1913 private static final float cos7_16 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 7.0 / 16.0)));
\r
1914 private static final float cos1_8 = (float) (1.0 / (2.0 * Math.cos(MY_PI / 8.0)));
\r
1915 private static final float cos3_8 = (float) (1.0 / (2.0 * Math.cos(MY_PI * 3.0 / 8.0)));
\r
1916 private static final float cos1_4 = (float) (1.0 / (2.0 * Math.cos(MY_PI / 4.0)));
\r
1918 // Note: These values are not in the same order
\r
1919 // as in Annex 3-B.3 of the ISO/IEC DIS 11172-3
\r
1920 // private float d[] = {0.000000000, -4.000442505};
\r
1923 * d[] split into subarrays of length 16. This provides for more faster access
\r
1924 * by allowing a block of 16 to be addressed with constant offset.
\r
1927 private static float d16[][] = null;
\r
1930 * Converts a 1D array into a number of smaller arrays. This is used to
\r
1931 * achieve offset + constant indexing into an array. Each sub-array represents
\r
1932 * a block of values of the original array.
\r
1935 * The array to split up into blocks.
\r
1936 * @param blockSize
\r
1937 * The size of the blocks to split the array into. This must be an
\r
1938 * exact divisor of the length of the array, or some data will be
\r
1939 * lost from the main array.
\r
1941 * @return An array of arrays in which each element in the returned array will
\r
1942 * be of length <code>blockSize</code>.
\r
1944 static private float[][] splitArray(final float[] array, final int blockSize) {
\r
1945 int size = array.length / blockSize;
\r
1946 float[][] split = new float[size][];
\r
1947 for (int i = 0; i < size; i++) {
\r
1948 split[i] = subArray(array, i * blockSize, blockSize);
\r
1954 * Returns a subarray of an existing array.
\r
1957 * The array to retrieve a subarra from.
\r
1959 * The offset in the array that corresponds to the first index of the
\r
1962 * The number of indeces in the subarray.
\r
1963 * @return The subarray, which may be of length 0.
\r
1965 static private float[] subArray(final float[] array, final int offs, int len) {
\r
1966 if (offs + len > array.length) {
\r
1967 len = array.length - offs;
\r
1973 float[] subarray = new float[len];
\r
1974 for (int i = 0; i < len; i++) {
\r
1975 subarray[i] = array[offs + i];
\r
1981 // The original data for d[]. This data is loaded from a file
\r
1982 // to reduce the overall package size and to improve performance.
\r
1984 static final float d[] = { 0.000000000f, -0.000442505f, 0.003250122f, -0.007003784f,
\r
1985 0.031082153f, -0.078628540f, 0.100311279f, -0.572036743f, 1.144989014f, 0.572036743f,
\r
1986 0.100311279f, 0.078628540f, 0.031082153f, 0.007003784f, 0.003250122f, 0.000442505f,
\r
1987 -0.000015259f, -0.000473022f, 0.003326416f, -0.007919312f, 0.030517578f, -0.084182739f,
\r
1988 0.090927124f, -0.600219727f, 1.144287109f, 0.543823242f, 0.108856201f, 0.073059082f,
\r
1989 0.031478882f, 0.006118774f, 0.003173828f, 0.000396729f, -0.000015259f, -0.000534058f,
\r
1990 0.003387451f, -0.008865356f, 0.029785156f, -0.089706421f, 0.080688477f, -0.628295898f,
\r
1991 1.142211914f, 0.515609741f, 0.116577148f, 0.067520142f, 0.031738281f, 0.005294800f,
\r
1992 0.003082275f, 0.000366211f, -0.000015259f, -0.000579834f, 0.003433228f, -0.009841919f,
\r
1993 0.028884888f, -0.095169067f, 0.069595337f, -0.656219482f, 1.138763428f, 0.487472534f,
\r
1994 0.123474121f, 0.061996460f, 0.031845093f, 0.004486084f, 0.002990723f, 0.000320435f,
\r
1995 -0.000015259f, -0.000625610f, 0.003463745f, -0.010848999f, 0.027801514f, -0.100540161f,
\r
1996 0.057617188f, -0.683914185f, 1.133926392f, 0.459472656f, 0.129577637f, 0.056533813f,
\r
1997 0.031814575f, 0.003723145f, 0.002899170f, 0.000289917f, -0.000015259f, -0.000686646f,
\r
1998 0.003479004f, -0.011886597f, 0.026535034f, -0.105819702f, 0.044784546f, -0.711318970f,
\r
1999 1.127746582f, 0.431655884f, 0.134887695f, 0.051132202f, 0.031661987f, 0.003005981f,
\r
2000 0.002792358f, 0.000259399f, -0.000015259f, -0.000747681f, 0.003479004f, -0.012939453f,
\r
2001 0.025085449f, -0.110946655f, 0.031082153f, -0.738372803f, 1.120223999f, 0.404083252f,
\r
2002 0.139450073f, 0.045837402f, 0.031387329f, 0.002334595f, 0.002685547f, 0.000244141f,
\r
2003 -0.000030518f, -0.000808716f, 0.003463745f, -0.014022827f, 0.023422241f, -0.115921021f,
\r
2004 0.016510010f, -0.765029907f, 1.111373901f, 0.376800537f, 0.143264771f, 0.040634155f,
\r
2005 0.031005859f, 0.001693726f, 0.002578735f, 0.000213623f, -0.000030518f, -0.000885010f,
\r
2006 0.003417969f, -0.015121460f, 0.021575928f, -0.120697021f, 0.001068115f, -0.791213989f,
\r
2007 1.101211548f, 0.349868774f, 0.146362305f, 0.035552979f, 0.030532837f, 0.001098633f,
\r
2008 0.002456665f, 0.000198364f, -0.000030518f, -0.000961304f, 0.003372192f, -0.016235352f,
\r
2009 0.019531250f, -0.125259399f, -0.015228271f, -0.816864014f, 1.089782715f, 0.323318481f,
\r
2010 0.148773193f, 0.030609131f, 0.029937744f, 0.000549316f, 0.002349854f, 0.000167847f,
\r
2011 -0.000030518f, -0.001037598f, 0.003280640f, -0.017349243f, 0.017257690f, -0.129562378f,
\r
2012 -0.032379150f, -0.841949463f, 1.077117920f, 0.297210693f, 0.150497437f, 0.025817871f,
\r
2013 0.029281616f, 0.000030518f, 0.002243042f, 0.000152588f, -0.000045776f, -0.001113892f,
\r
2014 0.003173828f, -0.018463135f, 0.014801025f, -0.133590698f, -0.050354004f, -0.866363525f,
\r
2015 1.063217163f, 0.271591187f, 0.151596069f, 0.021179199f, 0.028533936f, -0.000442505f,
\r
2016 0.002120972f, 0.000137329f, -0.000045776f, -0.001205444f, 0.003051758f, -0.019577026f,
\r
2017 0.012115479f, -0.137298584f, -0.069168091f, -0.890090942f, 1.048156738f, 0.246505737f,
\r
2018 0.152069092f, 0.016708374f, 0.027725220f, -0.000869751f, 0.002014160f, 0.000122070f,
\r
2019 -0.000061035f, -0.001296997f, 0.002883911f, -0.020690918f, 0.009231567f, -0.140670776f,
\r
2020 -0.088775635f, -0.913055420f, 1.031936646f, 0.221984863f, 0.151962280f, 0.012420654f,
\r
2021 0.026840210f, -0.001266479f, 0.001907349f, 0.000106812f, -0.000061035f, -0.001388550f,
\r
2022 0.002700806f, -0.021789551f, 0.006134033f, -0.143676758f, -0.109161377f, -0.935195923f,
\r
2023 1.014617920f, 0.198059082f, 0.151306152f, 0.008316040f, 0.025909424f, -0.001617432f,
\r
2024 0.001785278f, 0.000106812f, -0.000076294f, -0.001480103f, 0.002487183f, -0.022857666f,
\r
2025 0.002822876f, -0.146255493f, -0.130310059f, -0.956481934f, 0.996246338f, 0.174789429f,
\r
2026 0.150115967f, 0.004394531f, 0.024932861f, -0.001937866f, 0.001693726f, 0.000091553f,
\r
2027 -0.000076294f, -0.001586914f, 0.002227783f, -0.023910522f, -0.000686646f, -0.148422241f,
\r
2028 -0.152206421f, -0.976852417f, 0.976852417f, 0.152206421f, 0.148422241f, 0.000686646f,
\r
2029 0.023910522f, -0.002227783f, 0.001586914f, 0.000076294f, -0.000091553f, -0.001693726f,
\r
2030 0.001937866f, -0.024932861f, -0.004394531f, -0.150115967f, -0.174789429f, -0.996246338f,
\r
2031 0.956481934f, 0.130310059f, 0.146255493f, -0.002822876f, 0.022857666f, -0.002487183f,
\r
2032 0.001480103f, 0.000076294f, -0.000106812f, -0.001785278f, 0.001617432f, -0.025909424f,
\r
2033 -0.008316040f, -0.151306152f, -0.198059082f, -1.014617920f, 0.935195923f, 0.109161377f,
\r
2034 0.143676758f, -0.006134033f, 0.021789551f, -0.002700806f, 0.001388550f, 0.000061035f,
\r
2035 -0.000106812f, -0.001907349f, 0.001266479f, -0.026840210f, -0.012420654f, -0.151962280f,
\r
2036 -0.221984863f, -1.031936646f, 0.913055420f, 0.088775635f, 0.140670776f, -0.009231567f,
\r
2037 0.020690918f, -0.002883911f, 0.001296997f, 0.000061035f, -0.000122070f, -0.002014160f,
\r
2038 0.000869751f, -0.027725220f, -0.016708374f, -0.152069092f, -0.246505737f, -1.048156738f,
\r
2039 0.890090942f, 0.069168091f, 0.137298584f, -0.012115479f, 0.019577026f, -0.003051758f,
\r
2040 0.001205444f, 0.000045776f, -0.000137329f, -0.002120972f, 0.000442505f, -0.028533936f,
\r
2041 -0.021179199f, -0.151596069f, -0.271591187f, -1.063217163f, 0.866363525f, 0.050354004f,
\r
2042 0.133590698f, -0.014801025f, 0.018463135f, -0.003173828f, 0.001113892f, 0.000045776f,
\r
2043 -0.000152588f, -0.002243042f, -0.000030518f, -0.029281616f, -0.025817871f, -0.150497437f,
\r
2044 -0.297210693f, -1.077117920f, 0.841949463f, 0.032379150f, 0.129562378f, -0.017257690f,
\r
2045 0.017349243f, -0.003280640f, 0.001037598f, 0.000030518f, -0.000167847f, -0.002349854f,
\r
2046 -0.000549316f, -0.029937744f, -0.030609131f, -0.148773193f, -0.323318481f, -1.089782715f,
\r
2047 0.816864014f, 0.015228271f, 0.125259399f, -0.019531250f, 0.016235352f, -0.003372192f,
\r
2048 0.000961304f, 0.000030518f, -0.000198364f, -0.002456665f, -0.001098633f, -0.030532837f,
\r
2049 -0.035552979f, -0.146362305f, -0.349868774f, -1.101211548f, 0.791213989f, -0.001068115f,
\r
2050 0.120697021f, -0.021575928f, 0.015121460f, -0.003417969f, 0.000885010f, 0.000030518f,
\r
2051 -0.000213623f, -0.002578735f, -0.001693726f, -0.031005859f, -0.040634155f, -0.143264771f,
\r
2052 -0.376800537f, -1.111373901f, 0.765029907f, -0.016510010f, 0.115921021f, -0.023422241f,
\r
2053 0.014022827f, -0.003463745f, 0.000808716f, 0.000030518f, -0.000244141f, -0.002685547f,
\r
2054 -0.002334595f, -0.031387329f, -0.045837402f, -0.139450073f, -0.404083252f, -1.120223999f,
\r
2055 0.738372803f, -0.031082153f, 0.110946655f, -0.025085449f, 0.012939453f, -0.003479004f,
\r
2056 0.000747681f, 0.000015259f, -0.000259399f, -0.002792358f, -0.003005981f, -0.031661987f,
\r
2057 -0.051132202f, -0.134887695f, -0.431655884f, -1.127746582f, 0.711318970f, -0.044784546f,
\r
2058 0.105819702f, -0.026535034f, 0.011886597f, -0.003479004f, 0.000686646f, 0.000015259f,
\r
2059 -0.000289917f, -0.002899170f, -0.003723145f, -0.031814575f, -0.056533813f, -0.129577637f,
\r
2060 -0.459472656f, -1.133926392f, 0.683914185f, -0.057617188f, 0.100540161f, -0.027801514f,
\r
2061 0.010848999f, -0.003463745f, 0.000625610f, 0.000015259f, -0.000320435f, -0.002990723f,
\r
2062 -0.004486084f, -0.031845093f, -0.061996460f, -0.123474121f, -0.487472534f, -1.138763428f,
\r
2063 0.656219482f, -0.069595337f, 0.095169067f, -0.028884888f, 0.009841919f, -0.003433228f,
\r
2064 0.000579834f, 0.000015259f, -0.000366211f, -0.003082275f, -0.005294800f, -0.031738281f,
\r
2065 -0.067520142f, -0.116577148f, -0.515609741f, -1.142211914f, 0.628295898f, -0.080688477f,
\r
2066 0.089706421f, -0.029785156f, 0.008865356f, -0.003387451f, 0.000534058f, 0.000015259f,
\r
2067 -0.000396729f, -0.003173828f, -0.006118774f, -0.031478882f, -0.073059082f, -0.108856201f,
\r
2068 -0.543823242f, -1.144287109f, 0.600219727f, -0.090927124f, 0.084182739f, -0.030517578f,
\r
2069 0.007919312f, -0.003326416f, 0.000473022f, 0.000015259f };
\r