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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32 //import java.io.IOException; //Compiler does not support imports
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35 * A class for the synthesis filter bank.
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36 * This class does a fast downsampling from 32, 44.1 or 48 kHz to 8 kHz, if ULAW is defined.
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37 * Frequencies above 4 kHz are removed by ignoring higher subbands.
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39 @LATTICE("TMP<PCM,PCM<AV,AV<V2,V2<V1,V1<L1,L1<L2,L2<L3,L3<L4,L4<LSH,LSH<S,S<SA,SA<EQ,EQ<SH,SH*,LSH*,V1*")
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40 @METHODDEFAULT("OUT<V,V<SH,SH<IN,IN<GLOBAL,SH*,THISLOC=IN,GLOBALLOC=GLOBAL")
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41 final class SynthesisFilter
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43 @LOC("V1") private float[] v1;
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44 @LOC("V2") private float[] v2;
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45 // @LOC("AV") private float[] actual_v; // v1 or v2
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46 @LOC("SH") private int actual_write_pos; // 0-15
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47 @LOC("SA") private float[] samples; // 32 new subband samples
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48 @LOC("V2") private int channel;
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49 @LOC("V2") private float scalefactor;
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50 @LOC("EQ") private float[] eq;
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53 * Quality value for controlling CPU usage/quality tradeoff.
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56 private int quality;
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62 public static final int HIGH_QUALITY = 1;
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63 public static final int MEDIUM_QUALITY = 2;
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64 public static final int LOW_QUALITY = 4;
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69 * The scalefactor scales the calculated float pcm samples to short values
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70 * (raw pcm samples are in [-1.0, 1.0], if no violations occur).
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72 public SynthesisFilter(int channelnumber, float factor, float[] eq0)
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74 d16 = splitArray(d, 16);
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76 v1 = new float[512];
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77 v2 = new float[512];
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78 samples = new float[32];
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79 channel = channelnumber;
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80 scalefactor = factor;
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82 //setQuality(HIGH_QUALITY);
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87 public void setEQ(float[] eq0)
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93 for (int i=0; i<32; i++)
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98 throw new IllegalArgumentException("eq0");
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104 private void setQuality(int quality0)
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109 case MEDIUM_QUALITY:
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111 v_inc = 16 * quality0;
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112 quality = quality0;
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115 throw new IllegalArgumentException("Unknown quality value");
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119 public int getQuality()
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126 * Reset the synthesis filter.
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128 public void reset()
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131 // float[] floatp2;
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133 // initialize v1[] and v2[]:
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134 //for (floatp = v1 + 512, floatp2 = v2 + 512; floatp > v1; )
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135 // *--floatp = *--floatp2 = 0.0;
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136 for (int p=0;p<512;p++)
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137 v1[p] = v2[p] = 0.0f;
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139 // initialize samples[]:
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140 //for (floatp = samples + 32; floatp > samples; )
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141 // *--floatp = 0.0;
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142 for (int p2=0;p2<32;p2++)
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143 samples[p2] = 0.0f;
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146 actual_write_pos = 15;
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153 public void input_sample(@LOC("V") float sample, @LOC("V") int subbandnumber)
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155 samples[subbandnumber] = eq[subbandnumber]*sample;
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158 @LATTICE("TH<IN,IN<C,C*,THISLOC=TH")
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159 public void input_samples(@LOC("IN") float[] s)
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161 for (@LOC("C") int i=31; i>=0; i--)
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163 samples[i] = s[i]*eq[i];
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168 * Compute new values via a fast cosine transform.
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170 private void compute_new_v()
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172 // p is fully initialized from x1
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174 // pp is fully initialized from p
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175 //float[] pp = _pp;
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177 //float[] new_v = _new_v;
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179 //float[] new_v = new float[32]; // new V[0-15] and V[33-48] of Figure 3-A.2 in ISO DIS 11172-3
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180 //float[] p = new float[16];
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181 //float[] pp = new float[16];
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184 for (int i=31; i>=0; i--)
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190 @LOC("IN,SynthesisFilter.L4") float new_v0 = 0.0f;
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191 @LOC("IN,SynthesisFilter.L2") float new_v1 = 0.0f;
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192 @LOC("IN,SynthesisFilter.L4") float new_v2 = 0.0f;
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193 @LOC("IN,SynthesisFilter.L2") float new_v3 = 0.0f;
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194 @LOC("IN,SynthesisFilter.L3") float new_v4 = 0.0f;
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195 @LOC("IN,SynthesisFilter.L4") float new_v5 = 0.0f;
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196 @LOC("IN,SynthesisFilter.L2") float new_v6 = 0.0f;
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197 @LOC("IN,SynthesisFilter.L3") float new_v7 = 0.0f;
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198 @LOC("IN,SynthesisFilter.L4") float new_v8 = 0.0f;
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199 @LOC("IN,SynthesisFilter.L4") float new_v9 = 0.0f;
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200 @LOC("IN,SynthesisFilter.L3") float new_v10 = 0.0f;
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201 @LOC("IN,SynthesisFilter.L2") float new_v11 = 0.0f;
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202 @LOC("IN,SynthesisFilter.L4") float new_v12 = 0.0f;
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203 @LOC("IN,SynthesisFilter.L3") float new_v13 = 0.0f;
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204 @LOC("IN,SynthesisFilter.L4") float new_v14 = 0.0f;
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205 @LOC("IN,SynthesisFilter.L4") float new_v15 = 0.0f;
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206 @LOC("IN,SynthesisFilter.L1") float new_v16 = 0.0f;
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207 @LOC("IN,SynthesisFilter.L3") float new_v17 = 0.0f;
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208 @LOC("IN,SynthesisFilter.L1") float new_v18 = 0.0f;
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209 @LOC("IN,SynthesisFilter.L2") float new_v19 = 0.0f;
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210 @LOC("IN,SynthesisFilter.L2") float new_v20 = 0.0f;
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211 @LOC("IN,SynthesisFilter.L2") float new_v21 = 0.0f;
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212 @LOC("IN,SynthesisFilter.L2") float new_v22 = 0.0f;
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213 @LOC("IN,SynthesisFilter.L3") float new_v23 = 0.0f;
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214 @LOC("IN,SynthesisFilter.L2") float new_v24 = 0.0f;
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215 @LOC("IN,SynthesisFilter.L2") float new_v25 = 0.0f;
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216 @LOC("IN,SynthesisFilter.L2") float new_v26 = 0.0f;
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217 @LOC("IN,SynthesisFilter.L4") float new_v27 = 0.0f;
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218 @LOC("IN,SynthesisFilter.L2") float new_v28 = 0.0f;
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219 @LOC("IN,SynthesisFilter.L4") float new_v29 = 0.0f;
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220 @LOC("IN,SynthesisFilter.L2") float new_v30 = 0.0f;
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221 @LOC("IN,SynthesisFilter.L4") float new_v31 = 0.0f;
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223 // new_v0 = new_v1 = new_v2 = new_v3 = new_v4 = new_v5 = new_v6 = new_v7 = new_v8 = new_v9 =
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224 // new_v10 = new_v11 = new_v12 = new_v13 = new_v14 = new_v15 = new_v16 = new_v17 = new_v18 = new_v19 =
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225 // new_v20 = new_v21 = new_v22 = new_v23 = new_v24 = new_v25 = new_v26 = new_v27 = new_v28 = new_v29 =
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226 // new_v30 = new_v31 = 0.0f;
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229 // float[] new_v = new float[32]; // new V[0-15] and V[33-48] of Figure 3-A.2 in ISO DIS 11172-3
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230 // float[] p = new float[16];
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231 // float[] pp = new float[16];
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233 //float[] s = samples; // subbed in samples directly below to reduce uneccesary areas
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235 @LOC("IN,SynthesisFilter.S") float s0 = samples[0];
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236 @LOC("IN,SynthesisFilter.S") float s1 = samples[1];
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237 @LOC("IN,SynthesisFilter.S") float s2 = samples[2];
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238 @LOC("IN,SynthesisFilter.S") float s3 = samples[3];
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239 @LOC("IN,SynthesisFilter.S") float s4 = samples[4];
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240 @LOC("IN,SynthesisFilter.S") float s5 = samples[5];
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241 @LOC("IN,SynthesisFilter.S") float s6 = samples[6];
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242 @LOC("IN,SynthesisFilter.S") float s7 = samples[7];
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243 @LOC("IN,SynthesisFilter.S") float s8 = samples[8];
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244 @LOC("IN,SynthesisFilter.S") float s9 = samples[9];
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245 @LOC("IN,SynthesisFilter.S") float s10 = samples[10];
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246 @LOC("IN,SynthesisFilter.S") float s11 = samples[11];
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247 @LOC("IN,SynthesisFilter.S") float s12 = samples[12];
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248 @LOC("IN,SynthesisFilter.S") float s13 = samples[13];
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249 @LOC("IN,SynthesisFilter.S") float s14 = samples[14];
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250 @LOC("IN,SynthesisFilter.S") float s15 = samples[15];
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251 @LOC("IN,SynthesisFilter.S") float s16 = samples[16];
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252 @LOC("IN,SynthesisFilter.S") float s17 = samples[17];
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253 @LOC("IN,SynthesisFilter.S") float s18 = samples[18];
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254 @LOC("IN,SynthesisFilter.S") float s19 = samples[19];
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255 @LOC("IN,SynthesisFilter.S") float s20 = samples[20];
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256 @LOC("IN,SynthesisFilter.S") float s21 = samples[21];
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257 @LOC("IN,SynthesisFilter.S") float s22 = samples[22];
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258 @LOC("IN,SynthesisFilter.S") float s23 = samples[23];
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259 @LOC("IN,SynthesisFilter.S") float s24 = samples[24];
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260 @LOC("IN,SynthesisFilter.S") float s25 = samples[25];
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261 @LOC("IN,SynthesisFilter.S") float s26 = samples[26];
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262 @LOC("IN,SynthesisFilter.S") float s27 = samples[27];
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263 @LOC("IN,SynthesisFilter.S") float s28 = samples[28];
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264 @LOC("IN,SynthesisFilter.S") float s29 = samples[29];
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265 @LOC("IN,SynthesisFilter.S") float s30 = samples[30];
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266 @LOC("IN,SynthesisFilter.S") float s31 = samples[31];
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268 @LOC("IN,SynthesisFilter.LSH") float p0 = s0 + s31;
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269 @LOC("IN,SynthesisFilter.LSH") float p1 = s1 + s30;
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270 @LOC("IN,SynthesisFilter.LSH") float p2 = s2 + s29;
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271 @LOC("IN,SynthesisFilter.LSH") float p3 = s3 + s28;
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272 @LOC("IN,SynthesisFilter.LSH") float p4 = s4 + s27;
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273 @LOC("IN,SynthesisFilter.LSH") float p5 = s5 + s26;
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274 @LOC("IN,SynthesisFilter.LSH") float p6 = s6 + s25;
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275 @LOC("IN,SynthesisFilter.LSH") float p7 = s7 + s24;
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276 @LOC("IN,SynthesisFilter.LSH") float p8 = s8 + s23;
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277 @LOC("IN,SynthesisFilter.LSH") float p9 = s9 + s22;
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278 @LOC("IN,SynthesisFilter.LSH") float p10 = s10 + s21;
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279 @LOC("IN,SynthesisFilter.LSH") float p11 = s11 + s20;
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280 @LOC("IN,SynthesisFilter.LSH") float p12 = s12 + s19;
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281 @LOC("IN,SynthesisFilter.LSH") float p13 = s13 + s18;
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282 @LOC("IN,SynthesisFilter.LSH") float p14 = s14 + s17;
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283 @LOC("IN,SynthesisFilter.LSH") float p15 = s15 + s16;
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285 @LOC("IN,SynthesisFilter.LSH") float pp0 = p0 + p15;
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286 @LOC("IN,SynthesisFilter.LSH") float pp1 = p1 + p14;
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287 @LOC("IN,SynthesisFilter.LSH") float pp2 = p2 + p13;
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288 @LOC("IN,SynthesisFilter.LSH") float pp3 = p3 + p12;
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289 @LOC("IN,SynthesisFilter.LSH") float pp4 = p4 + p11;
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290 @LOC("IN,SynthesisFilter.LSH") float pp5 = p5 + p10;
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291 @LOC("IN,SynthesisFilter.LSH") float pp6 = p6 + p9;
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292 @LOC("IN,SynthesisFilter.LSH") float pp7 = p7 + p8;
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293 @LOC("IN,SynthesisFilter.LSH") float pp8 = (p0 - p15) * cos1_32;
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294 @LOC("IN,SynthesisFilter.LSH") float pp9 = (p1 - p14) * cos3_32;
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295 @LOC("IN,SynthesisFilter.LSH") float pp10 = (p2 - p13) * cos5_32;
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296 @LOC("IN,SynthesisFilter.LSH") float pp11 = (p3 - p12) * cos7_32;
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297 @LOC("IN,SynthesisFilter.LSH") float pp12 = (p4 - p11) * cos9_32;
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298 @LOC("IN,SynthesisFilter.LSH") float pp13 = (p5 - p10) * cos11_32;
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299 @LOC("IN,SynthesisFilter.LSH") float pp14 = (p6 - p9) * cos13_32;
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300 @LOC("IN,SynthesisFilter.LSH") float pp15 = (p7 - p8) * cos15_32;
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306 p4 = (pp0 - pp7) * cos1_16;
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307 p5 = (pp1 - pp6) * cos3_16;
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308 p6 = (pp2 - pp5) * cos5_16;
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309 p7 = (pp3 - pp4) * cos7_16;
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314 p12 = (pp8 - pp15) * cos1_16;
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315 p13 = (pp9 - pp14) * cos3_16;
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316 p14 = (pp10 - pp13) * cos5_16;
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317 p15 = (pp11 - pp12) * cos7_16;
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322 pp2 = (p0 - p3) * cos1_8;
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323 pp3 = (p1 - p2) * cos3_8;
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326 pp6 = (p4 - p7) * cos1_8;
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327 pp7 = (p5 - p6) * cos3_8;
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330 pp10 = (p8 - p11) * cos1_8;
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331 pp11 = (p9 - p10) * cos3_8;
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334 pp14 = (p12 - p15) * cos1_8;
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335 pp15 = (p13 - p14) * cos3_8;
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338 p1 = (pp0 - pp1) * cos1_4;
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340 p3 = (pp2 - pp3) * cos1_4;
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342 p5 = (pp4 - pp5) * cos1_4;
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344 p7 = (pp6 - pp7) * cos1_4;
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346 p9 = (pp8 - pp9) * cos1_4;
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349 p11 = (pp10 - pp11) * cos1_4;
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351 p13 = (pp12 - pp13) * cos1_4;
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353 p15 = (pp14 - pp15) * cos1_4;
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355 // this is pretty insane coding
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356 @LOC("IN,SynthesisFilter.L3") float tmp1;
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357 new_v19/*36-17*/ = -(new_v4 = (new_v12 = p7) + p5) - p6;
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358 new_v27/*44-17*/ = -p6 - p7 - p4;
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359 new_v6 = (new_v10 = (new_v14 = p15) + p11) + p13;
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360 new_v17/*34-17*/ = -(new_v2 = p15 + p13 + p9) - p14;
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361 new_v21/*38-17*/ = (tmp1 = -p14 - p15 - p10 - p11) - p13;
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362 new_v29/*46-17*/ = -p14 - p15 - p12 - p8;
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363 new_v25/*42-17*/ = tmp1 - p12;
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364 new_v31/*48-17*/ = -p0;
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366 new_v23/*40-17*/ = -(new_v8 = p3) - p2;
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368 p0 = (s0 - s31) * cos1_64;
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369 p1 = (s1 - s30) * cos3_64;
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370 p2 = (s2 - s29) * cos5_64;
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371 p3 = (s3 - s28) * cos7_64;
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372 p4 = (s4 - s27) * cos9_64;
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373 p5 = (s5 - s26) * cos11_64;
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374 p6 = (s6 - s25) * cos13_64;
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375 p7 = (s7 - s24) * cos15_64;
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376 p8 = (s8 - s23) * cos17_64;
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377 p9 = (s9 - s22) * cos19_64;
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378 p10 = (s10 - s21) * cos21_64;
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379 p11 = (s11 - s20) * cos23_64;
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380 p12 = (s12 - s19) * cos25_64;
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381 p13 = (s13 - s18) * cos27_64;
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382 p14 = (s14 - s17) * cos29_64;
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383 p15 = (s15 - s16) * cos31_64;
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394 pp8 = (p0 - p15) * cos1_32;
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395 pp9 = (p1 - p14) * cos3_32;
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396 pp10 = (p2 - p13) * cos5_32;
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397 pp11 = (p3 - p12) * cos7_32;
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398 pp12 = (p4 - p11) * cos9_32;
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399 pp13 = (p5 - p10) * cos11_32;
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400 pp14 = (p6 - p9) * cos13_32;
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401 pp15 = (p7 - p8) * cos15_32;
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408 p4 = (pp0 - pp7) * cos1_16;
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409 p5 = (pp1 - pp6) * cos3_16;
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410 p6 = (pp2 - pp5) * cos5_16;
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411 p7 = (pp3 - pp4) * cos7_16;
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416 p12 = (pp8 - pp15) * cos1_16;
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417 p13 = (pp9 - pp14) * cos3_16;
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418 p14 = (pp10 - pp13) * cos5_16;
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419 p15 = (pp11 - pp12) * cos7_16;
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424 pp2 = (p0 - p3) * cos1_8;
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425 pp3 = (p1 - p2) * cos3_8;
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428 pp6 = (p4 - p7) * cos1_8;
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429 pp7 = (p5 - p6) * cos3_8;
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432 pp10 = (p8 - p11) * cos1_8;
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433 pp11 = (p9 - p10) * cos3_8;
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436 pp14 = (p12 - p15) * cos1_8;
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437 pp15 = (p13 - p14) * cos3_8;
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441 p1 = (pp0 - pp1) * cos1_4;
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443 p3 = (pp2 - pp3) * cos1_4;
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445 p5 = (pp4 - pp5) * cos1_4;
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447 p7 = (pp6 - pp7) * cos1_4;
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449 p9 = (pp8 - pp9) * cos1_4;
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451 p11 = (pp10 - pp11) * cos1_4;
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453 p13 = (pp12 - pp13) * cos1_4;
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455 p15 = (pp14 - pp15) * cos1_4;
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458 // manually doing something that a compiler should handle sucks
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459 // coding like this is hard to read
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460 @LOC("IN,SynthesisFilter.L4") float tmp2;
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461 // new_v5 = (new_v11 = (new_v13 = (new_v15 = p15) + p7) + p11)
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464 new_v13 = p15 + p7;
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465 new_v11 = p15 + p7 + p11;
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466 new_v5 = p15 + p7 + p11 + p5 + p13;
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468 // new_v7 = (new_v9 = p15 + p11 + p3) + p13;
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469 new_v9 = p15 + p11 + p3;
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470 new_v7 = new_v9 + p13;
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472 new_v16/*33-17*/ = -(new_v1 = (tmp1 = p13 + p15 + p9) + p1) - p14;
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473 new_v18/*35-17*/ = -(new_v3 = tmp1 + p5 + p7) - p6 - p14;
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475 new_v22/*39-17*/ = (tmp1 = -p10 - p11 - p14 - p15)
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477 new_v20/*37-17*/ = tmp1 - p13 - p5 - p6 - p7;
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478 new_v24/*41-17*/ = tmp1 - p12 - p2 - p3;
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479 new_v26/*43-17*/ = tmp1 - p12 - (tmp2 = p4 + p6 + p7);
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480 new_v30/*47-17*/ = (tmp1 = -p8 - p12 - p14 - p15) - p0;
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481 new_v28/*45-17*/ = tmp1 - tmp2;
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483 // insert V[0-15] (== new_v[0-15]) into actual v:
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484 // float[] x2 = actual_v + actual_write_pos;
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485 //float dest[] = actual_v; //actual_v subbed in so as not to create a new area
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487 //int pos = actual_write_pos; //substituted to simplify location relations
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489 v1[0 + actual_write_pos] = new_v0;
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490 v1[16 + actual_write_pos] = new_v1;
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491 v1[32 + actual_write_pos] = new_v2;
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492 v1[48 + actual_write_pos] = new_v3;
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493 v1[64 + actual_write_pos] = new_v4;
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494 v1[80 + actual_write_pos] = new_v5;
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495 v1[96 + actual_write_pos] = new_v6;
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496 v1[112 + actual_write_pos] = new_v7;
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497 v1[128 + actual_write_pos] = new_v8;
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498 v1[144 + actual_write_pos] = new_v9;
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499 v1[160 + actual_write_pos] = new_v10;
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500 v1[176 + actual_write_pos] = new_v11;
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501 v1[192 + actual_write_pos] = new_v12;
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502 v1[208 + actual_write_pos] = new_v13;
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503 v1[224 + actual_write_pos] = new_v14;
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504 v1[240 + actual_write_pos] = new_v15;
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506 // V[16] is always 0.0:
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507 v1[256 + actual_write_pos] = 0.0f;
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509 // insert V[17-31] (== -new_v[15-1]) into actual v:
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510 v1[272 + actual_write_pos] = -new_v15;
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511 v1[288 + actual_write_pos] = -new_v14;
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512 v1[304 + actual_write_pos] = -new_v13;
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513 v1[320 + actual_write_pos] = -new_v12;
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514 v1[336 + actual_write_pos] = -new_v11;
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515 v1[352 + actual_write_pos] = -new_v10;
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516 v1[368 + actual_write_pos] = -new_v9;
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517 v1[384 + actual_write_pos] = -new_v8;
\r
518 v1[400 + actual_write_pos] = -new_v7;
\r
519 v1[416 + actual_write_pos] = -new_v6;
\r
520 v1[432 + actual_write_pos] = -new_v5;
\r
521 v1[448 + actual_write_pos] = -new_v4;
\r
522 v1[464 + actual_write_pos] = -new_v3;
\r
523 v1[480 + actual_write_pos] = -new_v2;
\r
524 v1[496 + actual_write_pos] = -new_v1;
\r
526 // insert V[32] (== -new_v[0]) into other v:
\r
527 //dest = (actual_v==v1) ? v2 : v1; //assignment replaced with if statement so that new areas are not created
\r
529 v2[0 + actual_write_pos] = -new_v0;
\r
530 // insert V[33-48] (== new_v[16-31]) into other v:
\r
531 v2[16 + actual_write_pos] = new_v16;
\r
532 v2[32 + actual_write_pos] = new_v17;
\r
533 v2[48 + actual_write_pos] = new_v18;
\r
534 v2[64 + actual_write_pos] = new_v19;
\r
535 v2[80 + actual_write_pos] = new_v20;
\r
536 v2[96 + actual_write_pos] = new_v21;
\r
537 v2[112 + actual_write_pos] = new_v22;
\r
538 v2[128 + actual_write_pos] = new_v23;
\r
539 v2[144 + actual_write_pos] = new_v24;
\r
540 v2[160 + actual_write_pos] = new_v25;
\r
541 v2[176 + actual_write_pos] = new_v26;
\r
542 v2[192 + actual_write_pos] = new_v27;
\r
543 v2[208 + actual_write_pos] = new_v28;
\r
544 v2[224 + actual_write_pos] = new_v29;
\r
545 v2[240 + actual_write_pos] = new_v30;
\r
546 v2[256 + actual_write_pos] = new_v31;
\r
548 // insert V[49-63] (== new_v[30-16]) into other v:
\r
549 v2[272 + actual_write_pos] = new_v30;
\r
550 v2[288 + actual_write_pos] = new_v29;
\r
551 v2[304 + actual_write_pos] = new_v28;
\r
552 v2[320 + actual_write_pos] = new_v27;
\r
553 v2[336 + actual_write_pos] = new_v26;
\r
554 v2[352 + actual_write_pos] = new_v25;
\r
555 v2[368 + actual_write_pos] = new_v24;
\r
556 v2[384 + actual_write_pos] = new_v23;
\r
557 v2[400 + actual_write_pos] = new_v22;
\r
558 v2[416 + actual_write_pos] = new_v21;
\r
559 v2[432 + actual_write_pos] = new_v20;
\r
560 v2[448 + actual_write_pos] = new_v19;
\r
561 v2[464 + actual_write_pos] = new_v18;
\r
562 v2[480 + actual_write_pos] = new_v17;
\r
563 v2[496 + actual_write_pos] = new_v16;
\r
567 * Compute PCM Samples.
\r
570 @LOC("TMP") private float[] _tmpOut = new float[32];
\r
572 @LATTICE("THIS<DVP,DVP<I,DVP*,I*,THISLOC=THIS")
\r
573 private void compute_pcm_samples0(@LOC("THIS") Obuffer buffer)
\r
575 //final float[] vp = v1; //subbed in variable name instead to reduce areas
\r
577 //final float[] tmpOut = _tmpOut; //subbed in variable name instread to reduce areas
\r
578 @LOC("DVP") int dvp =0;
\r
580 // fat chance of having this loop unroll
\r
581 for(@LOC("I") int i=0; i<32; i++)
\r
583 @LOC("THIS,SynthesisFilter.PCM") float pcm_sample;
\r
584 //final float[] dp = d16[i]; //subbed in variable name instead to reduce areas
\r
585 pcm_sample = (float)(((v1[0 + dvp] * d16[i][0]) +
\r
586 (v1[15 + dvp] * d16[i][1]) +
\r
587 (v1[14 + dvp] * d16[i][2]) +
\r
588 (v1[13 + dvp] * d16[i][3]) +
\r
589 (v1[12 + dvp] * d16[i][4]) +
\r
590 (v1[11 + dvp] * d16[i][5]) +
\r
591 (v1[10 + dvp] * d16[i][6]) +
\r
592 (v1[9 + dvp] * d16[i][7]) +
\r
593 (v1[8 + dvp] * d16[i][8]) +
\r
594 (v1[7 + dvp] * d16[i][9]) +
\r
595 (v1[6 + dvp] * d16[i][10]) +
\r
596 (v1[5 + dvp] * d16[i][11]) +
\r
597 (v1[4 + dvp] * d16[i][12]) +
\r
598 (v1[3 + dvp] * d16[i][13]) +
\r
599 (v1[2 + dvp] * d16[i][14]) +
\r
600 (v1[1 + dvp] * d16[i][15])
\r
603 _tmpOut[i] = pcm_sample;
\r
608 @LATTICE("THIS<DVP,DVP<I,DVP*,I*,THISLOC=THIS")
\r
609 private void compute_pcm_samples1(@LOC("THIS") Obuffer buffer)
\r
611 //final float[] vp = v1;
\r
613 //final float[] tmpOut = _tmpOut;
\r
614 @LOC("DVP") int dvp =0;
\r
616 // fat chance of having this loop unroll
\r
617 for(@LOC("I") int i=0; i<32; i++)
\r
619 //final float[] dp = d16[i];
\r
620 @LOC("THIS,SynthesisFilter.PCM") float pcm_sample;
\r
622 pcm_sample = (float)(((v1[1 + dvp] * d16[i][0]) +
\r
623 (v1[0 + dvp] * d16[i][1]) +
\r
624 (v1[15 + dvp] * d16[i][2]) +
\r
625 (v1[14 + dvp] * d16[i][3]) +
\r
626 (v1[13 + dvp] * d16[i][4]) +
\r
627 (v1[12 + dvp] * d16[i][5]) +
\r
628 (v1[11 + dvp] * d16[i][6]) +
\r
629 (v1[10 + dvp] * d16[i][7]) +
\r
630 (v1[9 + dvp] * d16[i][8]) +
\r
631 (v1[8 + dvp] * d16[i][9]) +
\r
632 (v1[7 + dvp] * d16[i][10]) +
\r
633 (v1[6 + dvp] * d16[i][11]) +
\r
634 (v1[5 + dvp] * d16[i][12]) +
\r
635 (v1[4 + dvp] * d16[i][13]) +
\r
636 (v1[3 + dvp] * d16[i][14]) +
\r
637 (v1[2 + dvp] * d16[i][15])
\r
640 _tmpOut[i] = pcm_sample;
\r
645 @LATTICE("THIS<DVP,DVP<I,DVP*,I*,THISLOC=THIS")
\r
646 private void compute_pcm_samples2(@LOC("THIS") Obuffer buffer)
\r
648 //final float[] vp = v1;
\r
651 //final float[] tmpOut = _tmpOut;
\r
652 @LOC("DVP") int dvp =0;
\r
654 // fat chance of having this loop unroll
\r
655 for(@LOC("I") int i=0; i<32; i++)
\r
657 //final float[] dp = d16[i];
\r
658 @LOC("THIS,SynthesisFilter.PCM") float pcm_sample;
\r
660 pcm_sample = (float)(((v1[2 + dvp] * d16[i][0]) +
\r
661 (v1[1 + dvp] * d16[i][1]) +
\r
662 (v1[0 + dvp] * d16[i][2]) +
\r
663 (v1[15 + dvp] * d16[i][3]) +
\r
664 (v1[14 + dvp] * d16[i][4]) +
\r
665 (v1[13 + dvp] * d16[i][5]) +
\r
666 (v1[12 + dvp] * d16[i][6]) +
\r
667 (v1[11 + dvp] * d16[i][7]) +
\r
668 (v1[10 + dvp] * d16[i][8]) +
\r
669 (v1[9 + dvp] * d16[i][9]) +
\r
670 (v1[8 + dvp] * d16[i][10]) +
\r
671 (v1[7 + dvp] * d16[i][11]) +
\r
672 (v1[6 + dvp] * d16[i][12]) +
\r
673 (v1[5 + dvp] * d16[i][13]) +
\r
674 (v1[4 + dvp] * d16[i][14]) +
\r
675 (v1[3 + dvp] * d16[i][15])
\r
678 _tmpOut[i] = pcm_sample;
\r
683 @LATTICE("THIS<DVP,DVP<I,DVP*,I*,THISLOC=THIS")
\r
684 private void compute_pcm_samples3(@LOC("THIS") Obuffer buffer)
\r
686 //final float[] vp = v1;
\r
690 //final float[] tmpOut = _tmpOut;
\r
691 @LOC("DVP") int dvp =0;
\r
693 // fat chance of having this loop unroll
\r
694 for(@LOC("I") int i=0; i<32; i++)
\r
696 //final float[] dp = d16[i];
\r
697 @LOC("THIS,SynthesisFilter.PCM") float pcm_sample;
\r
699 pcm_sample = (float) ( ( (v1[3 + dvp] * d16[i][0]) +
\r
700 (v1[2 + dvp] * d16[i][1]) +
\r
701 (v1[1 + dvp] * d16[i][2]) +
\r
702 (v1[0 + dvp] * d16[i][3]) +
\r
703 (v1[15 + dvp] * d16[i][4]) +
\r
704 (v1[14 + dvp] * d16[i][5]) +
\r
705 (v1[13 + dvp] * d16[i][6]) +
\r
706 (v1[12 + dvp] * d16[i][7]) +
\r
707 (v1[11 + dvp] * d16[i][8]) +
\r
708 (v1[10 + dvp] * d16[i][9]) +
\r
709 (v1[9 + dvp] * d16[i][10]) +
\r
710 (v1[8 + dvp] * d16[i][11]) +
\r
711 (v1[7 + dvp] * d16[i][12]) +
\r
712 (v1[6 + dvp] * d16[i][13]) +
\r
713 (v1[5 + dvp] * d16[i][14]) +
\r
714 (v1[4 + dvp] * d16[i][15])
\r
717 _tmpOut[i] = pcm_sample;
\r
722 @LATTICE("THIS<DVP,DVP<I,DVP*,I*,THISLOC=THIS")
\r
723 private void compute_pcm_samples4(@LOC("THIS") Obuffer buffer)
\r
725 //final float[] vp = v1;
\r
728 //final float[] tmpOut = _tmpOut;
\r
729 @LOC("DVP") int dvp =0;
\r
731 // fat chance of having this loop unroll
\r
732 for(@LOC("I") int i=0; i<32; i++)
\r
734 //final float[] dp = d16[i];
\r
735 @LOC("THIS,SynthesisFilter.PCM") float pcm_sample;
\r
737 pcm_sample = (float)(((v1[4 + dvp] * d16[i][0]) +
\r
738 (v1[3 + dvp] * d16[i][1]) +
\r
739 (v1[2 + dvp] * d16[i][2]) +
\r
740 (v1[1 + dvp] * d16[i][3]) +
\r
741 (v1[0 + dvp] * d16[i][4]) +
\r
742 (v1[15 + dvp] * d16[i][5]) +
\r
743 (v1[14 + dvp] * d16[i][6]) +
\r
744 (v1[13 + dvp] * d16[i][7]) +
\r
745 (v1[12 + dvp] * d16[i][8]) +
\r
746 (v1[11 + dvp] * d16[i][9]) +
\r
747 (v1[10 + dvp] * d16[i][10]) +
\r
748 (v1[9 + dvp] * d16[i][11]) +
\r
749 (v1[8 + dvp] * d16[i][12]) +
\r
750 (v1[7 + dvp] * d16[i][13]) +
\r
751 (v1[6 + dvp] * d16[i][14]) +
\r
752 (v1[5 + dvp] * d16[i][15])
\r
755 _tmpOut[i] = pcm_sample;
\r
760 @LATTICE("THIS<DVP,DVP<I,DVP*,I*,THISLOC=THIS")
\r
761 private void compute_pcm_samples5(@LOC("THIS") Obuffer buffer)
\r
763 //final float[] vp = v1;
\r
766 //final float[] tmpOut = _tmpOut;
\r
767 @LOC("DVP") int dvp =0;
\r
769 // fat chance of having this loop unroll
\r
770 for(@LOC("I") int i=0; i<32; i++)
\r
772 // final float[] dp = d16[i];
\r
773 @LOC("THIS,SynthesisFilter.PCM") float pcm_sample;
\r
775 pcm_sample = (float)(((v1[5 + dvp] * d16[i][0]) +
\r
776 (v1[4 + dvp] * d16[i][1]) +
\r
777 (v1[3 + dvp] * d16[i][2]) +
\r
778 (v1[2 + dvp] * d16[i][3]) +
\r
779 (v1[1 + dvp] * d16[i][4]) +
\r
780 (v1[0 + dvp] * d16[i][5]) +
\r
781 (v1[15 + dvp] * d16[i][6]) +
\r
782 (v1[14 + dvp] * d16[i][7]) +
\r
783 (v1[13 + dvp] * d16[i][8]) +
\r
784 (v1[12 + dvp] * d16[i][9]) +
\r
785 (v1[11 + dvp] * d16[i][10]) +
\r
786 (v1[10 + dvp] * d16[i][11]) +
\r
787 (v1[9 + dvp] * d16[i][12]) +
\r
788 (v1[8 + dvp] * d16[i][13]) +
\r
789 (v1[7 + dvp] * d16[i][14]) +
\r
790 (v1[6 + dvp] * d16[i][15])
\r
793 _tmpOut[i] = pcm_sample;
\r
798 @LATTICE("THIS<DVP,DVP<I,DVP*,I*,THISLOC=THIS")
\r
799 private void compute_pcm_samples6(@LOC("THIS") Obuffer buffer)
\r
801 //final float[] vp = v1;
\r
803 //final float[] tmpOut = _tmpOut;
\r
804 @LOC("DVP") int dvp =0;
\r
806 // fat chance of having this loop unroll
\r
807 for(@LOC("I") int i=0; i<32; i++)
\r
809 //final float[] dp = d16[i];
\r
810 @LOC("THIS,SynthesisFilter.PCM") float pcm_sample;
\r
812 pcm_sample = (float)(((v1[6 + dvp] * d16[i][0]) +
\r
813 (v1[5 + dvp] * d16[i][1]) +
\r
814 (v1[4 + dvp] * d16[i][2]) +
\r
815 (v1[3 + dvp] * d16[i][3]) +
\r
816 (v1[2 + dvp] * d16[i][4]) +
\r
817 (v1[1 + dvp] * d16[i][5]) +
\r
818 (v1[0 + dvp] * d16[i][6]) +
\r
819 (v1[15 + dvp] * d16[i][7]) +
\r
820 (v1[14 + dvp] * d16[i][8]) +
\r
821 (v1[13 + dvp] * d16[i][9]) +
\r
822 (v1[12 + dvp] * d16[i][10]) +
\r
823 (v1[11 + dvp] * d16[i][11]) +
\r
824 (v1[10 + dvp] * d16[i][12]) +
\r
825 (v1[9 + dvp] * d16[i][13]) +
\r
826 (v1[8 + dvp] * d16[i][14]) +
\r
827 (v1[7 + dvp] * d16[i][15])
\r
830 _tmpOut[i] = pcm_sample;
\r
835 @LATTICE("THIS<DVP,DVP<I,DVP*,I*,THISLOC=THIS")
\r
836 private void compute_pcm_samples7(@LOC("THIS") Obuffer buffer)
\r
838 //final float[] vp = v1;
\r
841 //final float[] tmpOut = _tmpOut;
\r
842 @LOC("DVP") int dvp =0;
\r
844 // fat chance of having this loop unroll
\r
845 for(@LOC("I") int i=0; i<32; i++)
\r
847 //final float[] dp = d16[i];
\r
848 @LOC("THIS,SynthesisFilter.PCM") float pcm_sample;
\r
850 pcm_sample = (float)(((v1[7 + dvp] * d16[i][0]) +
\r
851 (v1[6 + dvp] * d16[i][1]) +
\r
852 (v1[5 + dvp] * d16[i][2]) +
\r
853 (v1[4 + dvp] * d16[i][3]) +
\r
854 (v1[3 + dvp] * d16[i][4]) +
\r
855 (v1[2 + dvp] * d16[i][5]) +
\r
856 (v1[1 + dvp] * d16[i][6]) +
\r
857 (v1[0 + dvp] * d16[i][7]) +
\r
858 (v1[15 + dvp] * d16[i][8]) +
\r
859 (v1[14 + dvp] * d16[i][9]) +
\r
860 (v1[13 + dvp] * d16[i][10]) +
\r
861 (v1[12 + dvp] * d16[i][11]) +
\r
862 (v1[11 + dvp] * d16[i][12]) +
\r
863 (v1[10 + dvp] * d16[i][13]) +
\r
864 (v1[9 + dvp] * d16[i][14]) +
\r
865 (v1[8 + dvp] * d16[i][15])
\r
868 _tmpOut[i] = pcm_sample;
\r
873 @LATTICE("THIS<DVP,DVP<I,DVP*,I*,THISLOC=THIS")
\r
874 private void compute_pcm_samples8(@LOC("THIS") Obuffer buffer)
\r
876 //final float[] vp = v1;
\r
879 //final float[] tmpOut = _tmpOut;
\r
880 @LOC("DVP") int dvp =0;
\r
882 // fat chance of having this loop unroll
\r
883 for(@LOC("I") int i=0; i<32; i++)
\r
885 //final float[] dp = d16[i];
\r
886 @LOC("THIS,SynthesisFilter.PCM") float pcm_sample;
\r
888 pcm_sample = (float)(((v1[8 + dvp] * d16[i][0]) +
\r
889 (v1[7 + dvp] * d16[i][1]) +
\r
890 (v1[6 + dvp] * d16[i][2]) +
\r
891 (v1[5 + dvp] * d16[i][3]) +
\r
892 (v1[4 + dvp] * d16[i][4]) +
\r
893 (v1[3 + dvp] * d16[i][5]) +
\r
894 (v1[2 + dvp] * d16[i][6]) +
\r
895 (v1[1 + dvp] * d16[i][7]) +
\r
896 (v1[0 + dvp] * d16[i][8]) +
\r
897 (v1[15 + dvp] * d16[i][9]) +
\r
898 (v1[14 + dvp] * d16[i][10]) +
\r
899 (v1[13 + dvp] * d16[i][11]) +
\r
900 (v1[12 + dvp] * d16[i][12]) +
\r
901 (v1[11 + dvp] * d16[i][13]) +
\r
902 (v1[10 + dvp] * d16[i][14]) +
\r
903 (v1[9 + dvp] * d16[i][15])
\r
906 _tmpOut[i] = pcm_sample;
\r
911 @LATTICE("THIS<DVP,DVP<I,DVP*,I*,THISLOC=THIS")
\r
912 private void compute_pcm_samples9(@LOC("THIS") Obuffer buffer)
\r
914 //final float[] vp = v1;
\r
917 //final float[] tmpOut = _tmpOut;
\r
918 @LOC("DVP") int dvp =0;
\r
920 // fat chance of having this loop unroll
\r
921 for(@LOC("I") int i=0; i<32; i++)
\r
923 //final float[] dp = d16[i];
\r
924 @LOC("THIS,SynthesisFilter.PCM") float pcm_sample;
\r
926 pcm_sample = (float)(((v1[9 + dvp] * d16[i][0]) +
\r
927 (v1[8 + dvp] * d16[i][1]) +
\r
928 (v1[7 + dvp] * d16[i][2]) +
\r
929 (v1[6 + dvp] * d16[i][3]) +
\r
930 (v1[5 + dvp] * d16[i][4]) +
\r
931 (v1[4 + dvp] * d16[i][5]) +
\r
932 (v1[3 + dvp] * d16[i][6]) +
\r
933 (v1[2 + dvp] * d16[i][7]) +
\r
934 (v1[1 + dvp] * d16[i][8]) +
\r
935 (v1[0 + dvp] * d16[i][9]) +
\r
936 (v1[15 + dvp] * d16[i][10]) +
\r
937 (v1[14 + dvp] * d16[i][11]) +
\r
938 (v1[13 + dvp] * d16[i][12]) +
\r
939 (v1[12 + dvp] * d16[i][13]) +
\r
940 (v1[11 + dvp] * d16[i][14]) +
\r
941 (v1[10 + dvp] * d16[i][15])
\r
944 _tmpOut[i] = pcm_sample;
\r
949 @LATTICE("THIS<DVP,DVP<I,DVP*,I*,THISLOC=THIS")
\r
950 private void compute_pcm_samples10(@LOC("THIS") Obuffer buffer)
\r
952 //final float[] vp = v1;
\r
954 //final float[] tmpOut = _tmpOut;
\r
955 @LOC("DVP") int dvp =0;
\r
957 // fat chance of having this loop unroll
\r
958 for(@LOC("I") int i=0; i<32; i++)
\r
960 //final float[] dp = d16[i];
\r
961 @LOC("THIS,SynthesisFilter.PCM") float pcm_sample;
\r
963 pcm_sample = (float)(((v1[10 + dvp] * d16[i][0]) +
\r
964 (v1[9 + dvp] * d16[i][1]) +
\r
965 (v1[8 + dvp] * d16[i][2]) +
\r
966 (v1[7 + dvp] * d16[i][3]) +
\r
967 (v1[6 + dvp] * d16[i][4]) +
\r
968 (v1[5 + dvp] * d16[i][5]) +
\r
969 (v1[4 + dvp] * d16[i][6]) +
\r
970 (v1[3 + dvp] * d16[i][7]) +
\r
971 (v1[2 + dvp] * d16[i][8]) +
\r
972 (v1[1 + dvp] * d16[i][9]) +
\r
973 (v1[0 + dvp] * d16[i][10]) +
\r
974 (v1[15 + dvp] * d16[i][11]) +
\r
975 (v1[14 + dvp] * d16[i][12]) +
\r
976 (v1[13 + dvp] * d16[i][13]) +
\r
977 (v1[12 + dvp] * d16[i][14]) +
\r
978 (v1[11 + dvp] * d16[i][15])
\r
981 _tmpOut[i] = pcm_sample;
\r
986 @LATTICE("THIS<DVP,DVP<I,DVP*,I*,THISLOC=THIS")
\r
987 private void compute_pcm_samples11(@LOC("THIS") Obuffer buffer)
\r
989 //final float[] vp = v1;
\r
992 //final float[] tmpOut = _tmpOut;
\r
993 @LOC("DVP") int dvp =0;
\r
995 // fat chance of having this loop unroll
\r
996 for(@LOC("I") int i=0; i<32; i++)
\r
998 //final float[] dp = d16[i];
\r
999 @LOC("THIS,SynthesisFilter.PCM") float pcm_sample;
\r
1001 pcm_sample = (float)(((v1[11 + dvp] * d16[i][0]) +
\r
1002 (v1[10 + dvp] * d16[i][1]) +
\r
1003 (v1[9 + dvp] * d16[i][2]) +
\r
1004 (v1[8 + dvp] * d16[i][3]) +
\r
1005 (v1[7 + dvp] * d16[i][4]) +
\r
1006 (v1[6 + dvp] * d16[i][5]) +
\r
1007 (v1[5 + dvp] * d16[i][6]) +
\r
1008 (v1[4 + dvp] * d16[i][7]) +
\r
1009 (v1[3 + dvp] * d16[i][8]) +
\r
1010 (v1[2 + dvp] * d16[i][9]) +
\r
1011 (v1[1 + dvp] * d16[i][10]) +
\r
1012 (v1[0 + dvp] * d16[i][11]) +
\r
1013 (v1[15 + dvp] * d16[i][12]) +
\r
1014 (v1[14 + dvp] * d16[i][13]) +
\r
1015 (v1[13 + dvp] * d16[i][14]) +
\r
1016 (v1[12 + dvp] * d16[i][15])
\r
1019 _tmpOut[i] = pcm_sample;
\r
1024 @LATTICE("THIS<DVP,DVP<I,DVP*,I*,THISLOC=THIS")
\r
1025 private void compute_pcm_samples12(@LOC("THIS") Obuffer buffer)
\r
1027 //final float[] vp = v1;
\r
1028 //int inc = v_inc;
\r
1029 //final float[] tmpOut = _tmpOut;
\r
1030 @LOC("DVP") int dvp =0;
\r
1032 // fat chance of having this loop unroll
\r
1033 for(@LOC("I") int i=0; i<32; i++)
\r
1035 //final float[] dp = d16[i];
\r
1036 @LOC("THIS,SynthesisFilter.PCM") float pcm_sample;
\r
1038 pcm_sample = (float)(((v1[12 + dvp] * d16[i][0]) +
\r
1039 (v1[11 + dvp] * d16[i][1]) +
\r
1040 (v1[10 + dvp] * d16[i][2]) +
\r
1041 (v1[9 + dvp] * d16[i][3]) +
\r
1042 (v1[8 + dvp] * d16[i][4]) +
\r
1043 (v1[7 + dvp] * d16[i][5]) +
\r
1044 (v1[6 + dvp] * d16[i][6]) +
\r
1045 (v1[5 + dvp] * d16[i][7]) +
\r
1046 (v1[4 + dvp] * d16[i][8]) +
\r
1047 (v1[3 + dvp] * d16[i][9]) +
\r
1048 (v1[2 + dvp] * d16[i][10]) +
\r
1049 (v1[1 + dvp] * d16[i][11]) +
\r
1050 (v1[0 + dvp] * d16[i][12]) +
\r
1051 (v1[15 + dvp] * d16[i][13]) +
\r
1052 (v1[14 + dvp] * d16[i][14]) +
\r
1053 (v1[13 + dvp] * d16[i][15])
\r
1056 _tmpOut[i] = pcm_sample;
\r
1061 @LATTICE("THIS<DVP,DVP<I,DVP*,I*,THISLOC=THIS")
\r
1062 private void compute_pcm_samples13(@LOC("THIS") Obuffer buffer)
\r
1064 //final float[] vp = v1;
\r
1066 //int inc = v_inc;
\r
1067 //final float[] tmpOut = _tmpOut;
\r
1068 @LOC("DVP") int dvp =0;
\r
1070 // fat chance of having this loop unroll
\r
1071 for(@LOC("I") int i=0; i<32; i++)
\r
1073 //final float[] dp = d16[i];
\r
1074 @LOC("THIS,SynthesisFilter.PCM") float pcm_sample;
\r
1076 pcm_sample = (float)(((v1[13 + dvp] * d16[i][0]) +
\r
1077 (v1[12 + dvp] * d16[i][1]) +
\r
1078 (v1[11 + dvp] * d16[i][2]) +
\r
1079 (v1[10 + dvp] * d16[i][3]) +
\r
1080 (v1[9 + dvp] * d16[i][4]) +
\r
1081 (v1[8 + dvp] * d16[i][5]) +
\r
1082 (v1[7 + dvp] * d16[i][6]) +
\r
1083 (v1[6 + dvp] * d16[i][7]) +
\r
1084 (v1[5 + dvp] * d16[i][8]) +
\r
1085 (v1[4 + dvp] * d16[i][9]) +
\r
1086 (v1[3 + dvp] * d16[i][10]) +
\r
1087 (v1[2 + dvp] * d16[i][11]) +
\r
1088 (v1[1 + dvp] * d16[i][12]) +
\r
1089 (v1[0 + dvp] * d16[i][13]) +
\r
1090 (v1[15 + dvp] * d16[i][14]) +
\r
1091 (v1[14 + dvp] * d16[i][15])
\r
1094 _tmpOut[i] = pcm_sample;
\r
1099 @LATTICE("THIS<DVP,DVP<I,DVP*,I*,THISLOC=THIS")
\r
1100 private void compute_pcm_samples14(@LOC("THIS") Obuffer buffer)
\r
1102 //final float[] vp = v1;
\r
1104 //int inc = v_inc;
\r
1105 //final float[] tmpOut = _tmpOut;
\r
1106 @LOC("DVP") int dvp =0;
\r
1108 // fat chance of having this loop unroll
\r
1109 for(@LOC("I") int i=0; i<32; i++)
\r
1111 //final float[] dp = d16[i];
\r
1112 @LOC("THIS,SynthesisFilter.PCM") float pcm_sample;
\r
1114 pcm_sample = (float)(((v1[14 + dvp] * d16[i][0]) +
\r
1115 (v1[13 + dvp] * d16[i][1]) +
\r
1116 (v1[12 + dvp] * d16[i][2]) +
\r
1117 (v1[11 + dvp] * d16[i][3]) +
\r
1118 (v1[10 + dvp] * d16[i][4]) +
\r
1119 (v1[9 + dvp] * d16[i][5]) +
\r
1120 (v1[8 + dvp] * d16[i][6]) +
\r
1121 (v1[7 + dvp] * d16[i][7]) +
\r
1122 (v1[6 + dvp] * d16[i][8]) +
\r
1123 (v1[5 + dvp] * d16[i][9]) +
\r
1124 (v1[4 + dvp] * d16[i][10]) +
\r
1125 (v1[3 + dvp] * d16[i][11]) +
\r
1126 (v1[2 + dvp] * d16[i][12]) +
\r
1127 (v1[1 + dvp] * d16[i][13]) +
\r
1128 (v1[0 + dvp] * d16[i][14]) +
\r
1129 (v1[15 + dvp] * d16[i][15])
\r
1132 _tmpOut[i] = pcm_sample;
\r
1137 @LATTICE("THIS<DVP,DVP<I,DVP*,I*,THISLOC=THIS")
\r
1138 private void compute_pcm_samples15(@LOC("THIS") Obuffer buffer)
\r
1140 //final float[] vp = v1;
\r
1142 //int inc = v_inc;
\r
1143 //final float[] tmpOut = _tmpOut;
\r
1144 @LOC("DVP") int dvp =0;
\r
1146 // fat chance of having this loop unroll
\r
1147 for(@LOC("I") int i=0; i<32; i++)
\r
1149 @LOC("THIS,SynthesisFilter.PCM") float pcm_sample;
\r
1150 //final float dp[] = d16[i];
\r
1151 pcm_sample = (float)(((v1[15 + dvp] * d16[i][0]) +
\r
1152 (v1[14 + dvp] * d16[i][1]) +
\r
1153 (v1[13 + dvp] * d16[i][2]) +
\r
1154 (v1[12 + dvp] * d16[i][3]) +
\r
1155 (v1[11 + dvp] * d16[i][4]) +
\r
1156 (v1[10 + dvp] * d16[i][5]) +
\r
1157 (v1[9 + dvp] * d16[i][6]) +
\r
1158 (v1[8 + dvp] * d16[i][7]) +
\r
1159 (v1[7 + dvp] * d16[i][8]) +
\r
1160 (v1[6 + dvp] * d16[i][9]) +
\r
1161 (v1[5 + dvp] * d16[i][10]) +
\r
1162 (v1[4 + dvp] * d16[i][11]) +
\r
1163 (v1[3 + dvp] * d16[i][12]) +
\r
1164 (v1[2 + dvp] * d16[i][13]) +
\r
1165 (v1[1 + dvp] * d16[i][14]) +
\r
1166 (v1[0 + dvp] * d16[i][15])
\r
1169 _tmpOut[i] = pcm_sample;
\r
1174 private void compute_pcm_samples(@LOC("GLOBAL") Obuffer buffer)
\r
1177 switch (actual_write_pos)
\r
1180 compute_pcm_samples0(buffer);
\r
1183 compute_pcm_samples1(buffer);
\r
1186 compute_pcm_samples2(buffer);
\r
1189 compute_pcm_samples3(buffer);
\r
1192 compute_pcm_samples4(buffer);
\r
1195 compute_pcm_samples5(buffer);
\r
1198 compute_pcm_samples6(buffer);
\r
1201 compute_pcm_samples7(buffer);
\r
1204 compute_pcm_samples8(buffer);
\r
1207 compute_pcm_samples9(buffer);
\r
1210 compute_pcm_samples10(buffer);
\r
1213 compute_pcm_samples11(buffer);
\r
1216 compute_pcm_samples12(buffer);
\r
1219 compute_pcm_samples13(buffer);
\r
1222 compute_pcm_samples14(buffer);
\r
1225 compute_pcm_samples15(buffer);
\r
1231 buffer.appendSamples(channel, _tmpOut);
\r
1235 // MDM: I was considering putting in quality control for
\r
1236 // low-spec CPUs, but the performance gain (about 10-15%)
\r
1237 // did not justify the considerable drop in audio quality.
\r
1241 buffer.appendSamples(channel, tmpOut);
\r
1244 for (int i=0; i<16; i++)
\r
1246 buffer.append(channel, (short)tmpOut[i]);
\r
1247 buffer.append(channel, (short)tmpOut[i]);
\r
1251 for (int i=0; i<8; i++)
\r
1253 buffer.append(channel, (short)tmpOut[i]);
\r
1254 buffer.append(channel, (short)tmpOut[i]);
\r
1255 buffer.append(channel, (short)tmpOut[i]);
\r
1256 buffer.append(channel, (short)tmpOut[i]);
\r
1265 * Calculate 32 PCM samples and put the into the Obuffer-object.
\r
1268 @LATTICE("THIS<IN,THIS<SH,SH*,THISLOC=THIS")
\r
1269 public void calculate_pcm_samples(@LOC("IN") Obuffer buffer) {
\r
1271 compute_pcm_samples(buffer);
\r
1273 actual_write_pos = (actual_write_pos + 1) & 0xf;
\r
1274 // actual_v = (actual_v == v1) ? v2 : v1;
\r
1276 // initialize samples[]:
\r
1277 // for (register float *floatp = samples + 32; floatp > samples; )
\r
1278 // *--floatp = 0.0f;
\r
1280 // MDM: this may not be necessary. The Layer III decoder always
\r
1281 // outputs 32 subband samples, but I haven't checked layer I & II.
\r
1282 for (@LOC("SH") int p = 0; p < 32; p++)
\r
1283 samples[p] = 0.0f;
\r
1287 @LOC("EQ") private static final double MY_PI = 3.14159265358979323846;
\r
1288 @LOC("SA") private static final float cos1_64 =(float) (1.0 / (2.0 * Math.cos(MY_PI / 64.0)));
\r
1289 @LOC("SA") private static final float cos3_64 =(float) (1.0 / (2.0 * Math.cos(MY_PI * 3.0 / 64.0)));
\r
1290 @LOC("SA") private static final float cos5_64 =(float) (1.0 / (2.0 * Math.cos(MY_PI * 5.0 / 64.0)));
\r
1291 @LOC("SA") private static final float cos7_64 =(float) (1.0 / (2.0 * Math.cos(MY_PI * 7.0 / 64.0)));
\r
1292 @LOC("SA") private static final float cos9_64 =(float) (1.0 / (2.0 * Math.cos(MY_PI * 9.0 / 64.0)));
\r
1293 @LOC("SA") private static final float cos11_64 =(float) (1.0 / (2.0 * Math.cos(MY_PI * 11.0 / 64.0)));
\r
1294 @LOC("SA") private static final float cos13_64 =(float) (1.0 / (2.0 * Math.cos(MY_PI * 13.0 / 64.0)));
\r
1295 @LOC("SA") private static final float cos15_64 =(float) (1.0 / (2.0 * Math.cos(MY_PI * 15.0 / 64.0)));
\r
1296 @LOC("SA") private static final float cos17_64 =(float) (1.0 / (2.0 * Math.cos(MY_PI * 17.0 / 64.0)));
\r
1297 @LOC("SA") private static final float cos19_64 =(float) (1.0 / (2.0 * Math.cos(MY_PI * 19.0 / 64.0)));
\r
1298 @LOC("SA") private static final float cos21_64 =(float) (1.0 / (2.0 * Math.cos(MY_PI * 21.0 / 64.0)));
\r
1299 @LOC("SA") private static final float cos23_64 =(float) (1.0 / (2.0 * Math.cos(MY_PI * 23.0 / 64.0)));
\r
1300 @LOC("SA") private static final float cos25_64 =(float) (1.0 / (2.0 * Math.cos(MY_PI * 25.0 / 64.0)));
\r
1301 @LOC("SA") private static final float cos27_64 =(float) (1.0 / (2.0 * Math.cos(MY_PI * 27.0 / 64.0)));
\r
1302 @LOC("SA") private static final float cos29_64 =(float) (1.0 / (2.0 * Math.cos(MY_PI * 29.0 / 64.0)));
\r
1303 @LOC("SA") private static final float cos31_64 =(float) (1.0 / (2.0 * Math.cos(MY_PI * 31.0 / 64.0)));
\r
1304 @LOC("SA") private static final float cos1_32 =(float) (1.0 / (2.0 * Math.cos(MY_PI / 32.0)));
\r
1305 @LOC("SA") private static final float cos3_32 =(float) (1.0 / (2.0 * Math.cos(MY_PI * 3.0 / 32.0)));
\r
1306 @LOC("SA") private static final float cos5_32 =(float) (1.0 / (2.0 * Math.cos(MY_PI * 5.0 / 32.0)));
\r
1307 @LOC("SA") private static final float cos7_32 =(float) (1.0 / (2.0 * Math.cos(MY_PI * 7.0 / 32.0)));
\r
1308 @LOC("SA") private static final float cos9_32 =(float) (1.0 / (2.0 * Math.cos(MY_PI * 9.0 / 32.0)));
\r
1309 @LOC("SA") private static final float cos11_32 =(float) (1.0 / (2.0 * Math.cos(MY_PI * 11.0 / 32.0)));
\r
1310 @LOC("SA") private static final float cos13_32 =(float) (1.0 / (2.0 * Math.cos(MY_PI * 13.0 / 32.0)));
\r
1311 @LOC("SA") private static final float cos15_32 =(float) (1.0 / (2.0 * Math.cos(MY_PI * 15.0 / 32.0)));
\r
1312 @LOC("SA") private static final float cos1_16 =(float) (1.0 / (2.0 * Math.cos(MY_PI / 16.0)));
\r
1313 @LOC("SA") private static final float cos3_16 =(float) (1.0 / (2.0 * Math.cos(MY_PI * 3.0 / 16.0)));
\r
1314 @LOC("SA") private static final float cos5_16 =(float) (1.0 / (2.0 * Math.cos(MY_PI * 5.0 / 16.0)));
\r
1315 @LOC("SA") private static final float cos7_16 =(float) (1.0 / (2.0 * Math.cos(MY_PI * 7.0 / 16.0)));
\r
1316 @LOC("SA") private static final float cos1_8 =(float) (1.0 / (2.0 * Math.cos(MY_PI / 8.0)));
\r
1317 @LOC("SA") private static final float cos3_8 =(float) (1.0 / (2.0 * Math.cos(MY_PI * 3.0 / 8.0)));
\r
1318 @LOC("SA") private static final float cos1_4 =(float) (1.0 / (2.0 * Math.cos(MY_PI / 4.0)));
\r
1320 // Note: These values are not in the same order
\r
1321 // as in Annex 3-B.3 of the ISO/IEC DIS 11172-3
\r
1322 // private float d[] = {0.000000000, -4.000442505};
\r
1324 // @LOC("V2") private static float d[] = null;
\r
1327 * d[] split into subarrays of length 16. This provides for
\r
1328 * more faster access by allowing a block of 16 to be addressed
\r
1329 * with constant offset.
\r
1331 @LOC("V2") private static float d16[][] = null;
\r
1334 * Converts a 1D array into a number of smaller arrays. This is used
\r
1335 * to achieve offset + constant indexing into an array. Each sub-array
\r
1336 * represents a block of values of the original array.
\r
1337 * @param array The array to split up into blocks.
\r
1338 * @param blockSize The size of the blocks to split the array
\r
1339 * into. This must be an exact divisor of
\r
1340 * the length of the array, or some data
\r
1341 * will be lost from the main array.
\r
1343 * @return An array of arrays in which each element in the returned
\r
1344 * array will be of length <code>blockSize</code>.
\r
1346 static private float[][] splitArray(final float[] array, final int blockSize)
\r
1348 int size = array.length / blockSize;
\r
1349 float[][] split = new float[size][];
\r
1350 for (int i=0; i<size; i++)
\r
1352 split[i] = subArray(array, i*blockSize, blockSize);
\r
1358 * Returns a subarray of an existing array.
\r
1360 * @param array The array to retrieve a subarra from.
\r
1361 * @param offs The offset in the array that corresponds to
\r
1362 * the first index of the subarray.
\r
1363 * @param len The number of indeces in the subarray.
\r
1364 * @return The subarray, which may be of length 0.
\r
1366 static private float[] subArray(final float[] array, final int offs, int len)
\r
1368 if (offs+len > array.length)
\r
1370 len = array.length-offs;
\r
1376 float[] subarray = new float[len];
\r
1377 for (int i=0; i<len; i++)
\r
1379 subarray[i] = array[offs+i];
\r
1385 // The original data for d[]. This data is loaded from a file
\r
1386 // to reduce the overall package size and to improve performance.
\r
1388 static final float d[] = {
\r
1389 0.000000000f, -0.000442505f, 0.003250122f, -0.007003784f,
\r
1390 0.031082153f, -0.078628540f, 0.100311279f, -0.572036743f,
\r
1391 1.144989014f, 0.572036743f, 0.100311279f, 0.078628540f,
\r
1392 0.031082153f, 0.007003784f, 0.003250122f, 0.000442505f,
\r
1393 -0.000015259f, -0.000473022f, 0.003326416f, -0.007919312f,
\r
1394 0.030517578f, -0.084182739f, 0.090927124f, -0.600219727f,
\r
1395 1.144287109f, 0.543823242f, 0.108856201f, 0.073059082f,
\r
1396 0.031478882f, 0.006118774f, 0.003173828f, 0.000396729f,
\r
1397 -0.000015259f, -0.000534058f, 0.003387451f, -0.008865356f,
\r
1398 0.029785156f, -0.089706421f, 0.080688477f, -0.628295898f,
\r
1399 1.142211914f, 0.515609741f, 0.116577148f, 0.067520142f,
\r
1400 0.031738281f, 0.005294800f, 0.003082275f, 0.000366211f,
\r
1401 -0.000015259f, -0.000579834f, 0.003433228f, -0.009841919f,
\r
1402 0.028884888f, -0.095169067f, 0.069595337f, -0.656219482f,
\r
1403 1.138763428f, 0.487472534f, 0.123474121f, 0.061996460f,
\r
1404 0.031845093f, 0.004486084f, 0.002990723f, 0.000320435f,
\r
1405 -0.000015259f, -0.000625610f, 0.003463745f, -0.010848999f,
\r
1406 0.027801514f, -0.100540161f, 0.057617188f, -0.683914185f,
\r
1407 1.133926392f, 0.459472656f, 0.129577637f, 0.056533813f,
\r
1408 0.031814575f, 0.003723145f, 0.002899170f, 0.000289917f,
\r
1409 -0.000015259f, -0.000686646f, 0.003479004f, -0.011886597f,
\r
1410 0.026535034f, -0.105819702f, 0.044784546f, -0.711318970f,
\r
1411 1.127746582f, 0.431655884f, 0.134887695f, 0.051132202f,
\r
1412 0.031661987f, 0.003005981f, 0.002792358f, 0.000259399f,
\r
1413 -0.000015259f, -0.000747681f, 0.003479004f, -0.012939453f,
\r
1414 0.025085449f, -0.110946655f, 0.031082153f, -0.738372803f,
\r
1415 1.120223999f, 0.404083252f, 0.139450073f, 0.045837402f,
\r
1416 0.031387329f, 0.002334595f, 0.002685547f, 0.000244141f,
\r
1417 -0.000030518f, -0.000808716f, 0.003463745f, -0.014022827f,
\r
1418 0.023422241f, -0.115921021f, 0.016510010f, -0.765029907f,
\r
1419 1.111373901f, 0.376800537f, 0.143264771f, 0.040634155f,
\r
1420 0.031005859f, 0.001693726f, 0.002578735f, 0.000213623f,
\r
1421 -0.000030518f, -0.000885010f, 0.003417969f, -0.015121460f,
\r
1422 0.021575928f, -0.120697021f, 0.001068115f, -0.791213989f,
\r
1423 1.101211548f, 0.349868774f, 0.146362305f, 0.035552979f,
\r
1424 0.030532837f, 0.001098633f, 0.002456665f, 0.000198364f,
\r
1425 -0.000030518f, -0.000961304f, 0.003372192f, -0.016235352f,
\r
1426 0.019531250f, -0.125259399f, -0.015228271f, -0.816864014f,
\r
1427 1.089782715f, 0.323318481f, 0.148773193f, 0.030609131f,
\r
1428 0.029937744f, 0.000549316f, 0.002349854f, 0.000167847f,
\r
1429 -0.000030518f, -0.001037598f, 0.003280640f, -0.017349243f,
\r
1430 0.017257690f, -0.129562378f, -0.032379150f, -0.841949463f,
\r
1431 1.077117920f, 0.297210693f, 0.150497437f, 0.025817871f,
\r
1432 0.029281616f, 0.000030518f, 0.002243042f, 0.000152588f,
\r
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