embdrv/sbc/decoder/srce/synthesis-8-generated.c

/******************************************************************************
 *
 *  Copyright 2014 The Android Open Source Project
 *  Copyright 2003 - 2004 Open Interface North America, Inc. All rights
 *                        reserved.
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at:
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 ******************************************************************************/

/**
 @file

 DO NOT EDIT THIS FILE DIRECTLY

 This file is automatically generated by the "synthesis-gen.pl" script.
 Any changes to this generated file will be lost when the script is re-run.

 These functions are called by functions in synthesis.c to perform the synthesis
 filterbank computations for the SBC decoder.


 */

#include <oi_codec_sbc_private.h>

#ifndef CLIP_INT16
#define CLIP_INT16(x)                \
  do {                               \
    if ((x) > OI_INT16_MAX) {        \
      (x) = OI_INT16_MAX;            \
    } else if ((x) < OI_INT16_MIN) { \
      (x) = OI_INT16_MIN;            \
    }                                \
  } while (0)
#endif

#define MUL_16S_16S(_x, _y) ((_x) * (_y))

PRIVATE void SynthWindow80_generated(int16_t* pcm,
                                     SBC_BUFFER_T const* RESTRICT buffer,
                                     OI_UINT strideShift) {
  int32_t pcm_a, pcm_b;
  /* 1 - stage 0 */ pcm_b = 0;
  /* 1 - stage 0 */ pcm_b += (MUL_16S_16S(8235, buffer[12])) >> 3;
  /* 1 - stage 0 */ pcm_b += (MUL_16S_16S(-23167, buffer[20])) >> 3;
  /* 1 - stage 0 */ pcm_b += (MUL_16S_16S(26479, buffer[28])) >> 2;
  /* 1 - stage 0 */ pcm_b += (MUL_16S_16S(-17397, buffer[36])) << 1;
  /* 1 - stage 0 */ pcm_b += (MUL_16S_16S(9399, buffer[44])) << 3;
  /* 1 - stage 0 */ pcm_b += (MUL_16S_16S(17397, buffer[52])) << 1;
  /* 1 - stage 0 */ pcm_b += (MUL_16S_16S(26479, buffer[60])) >> 2;
  /* 1 - stage 0 */ pcm_b += (MUL_16S_16S(23167, buffer[68])) >> 3;
  /* 1 - stage 0 */ pcm_b += (MUL_16S_16S(8235, buffer[76])) >> 3;
  /* 1 - stage 0 */ pcm_b /= 32768;
  CLIP_INT16(pcm_b);
  pcm[0 << strideShift] = (int16_t)pcm_b;
  /* 1 - stage 1 */ pcm_a = 0;
  /* 1 - stage 1 */ pcm_b = 0;
  /* 1 - stage 1 */ pcm_a += (MUL_16S_16S(-3263, buffer[5])) >> 5;
  /* 1 - stage 1 */ pcm_b += (MUL_16S_16S(9293, buffer[5])) >> 3;
  /* 1 - stage 1 */ pcm_a += (MUL_16S_16S(29293, buffer[11])) >> 5;
  /* 1 - stage 1 */ pcm_b += (MUL_16S_16S(-6087, buffer[11])) >> 2;
  /* 1 - stage 1 */ pcm_a += (MUL_16S_16S(-5229, buffer[21]));
  /* 1 - stage 1 */ pcm_b += (MUL_16S_16S(1247, buffer[21])) << 3;
  /* 1 - stage 1 */ pcm_a += (MUL_16S_16S(30835, buffer[27])) >> 3;
  /* 1 - stage 1 */ pcm_b += (MUL_16S_16S(-2893, buffer[27])) << 3;
  /* 1 - stage 1 */ pcm_a += (MUL_16S_16S(-27021, buffer[37])) << 1;
  /* 1 - stage 1 */ pcm_b += (MUL_16S_16S(23671, buffer[37])) << 2;
  /* 1 - stage 1 */ pcm_a += (MUL_16S_16S(31633, buffer[43])) << 1;
  /* 1 - stage 1 */ pcm_b += (MUL_16S_16S(18055, buffer[43])) << 1;
  /* 1 - stage 1 */ pcm_a += (MUL_16S_16S(17319, buffer[53])) << 1;
  /* 1 - stage 1 */ pcm_b += (MUL_16S_16S(11537, buffer[53])) >> 1;
  /* 1 - stage 1 */ pcm_a += (MUL_16S_16S(26663, buffer[59])) >> 2;
  /* 1 - stage 1 */ pcm_b += (MUL_16S_16S(1747, buffer[59])) << 1;
  /* 1 - stage 1 */ pcm_a += (MUL_16S_16S(4555, buffer[69])) >> 1;
  /* 1 - stage 1 */ pcm_b += (MUL_16S_16S(685, buffer[69])) << 1;
  /* 1 - stage 1 */ pcm_a += (MUL_16S_16S(12419, buffer[75])) >> 4;
  /* 1 - stage 1 */ pcm_b += (MUL_16S_16S(8721, buffer[75])) >> 7;
  /* 1 - stage 1 */ pcm_a /= 32768;
  CLIP_INT16(pcm_a);
  pcm[1 << strideShift] = (int16_t)pcm_a;
  /* 1 - stage 1 */ pcm_b /= 32768;
  CLIP_INT16(pcm_b);
  pcm[7 << strideShift] = (int16_t)pcm_b;
  /* 1 - stage 2 */ pcm_a = 0;
  /* 1 - stage 2 */ pcm_b = 0;
  /* 1 - stage 2 */ pcm_a += (MUL_16S_16S(-10385, buffer[6])) >> 6;
  /* 1 - stage 2 */ pcm_b += (MUL_16S_16S(11167, buffer[6])) >> 4;
  /* 1 - stage 2 */ pcm_a += (MUL_16S_16S(24995, buffer[10])) >> 5;
  /* 1 - stage 2 */ pcm_b += (MUL_16S_16S(-10337, buffer[10])) >> 4;
  /* 1 - stage 2 */ pcm_a += (MUL_16S_16S(-309, buffer[22])) << 4;
  /* 1 - stage 2 */ pcm_b += (MUL_16S_16S(1917, buffer[22])) << 2;
  /* 1 - stage 2 */ pcm_a += (MUL_16S_16S(9161, buffer[26])) >> 3;
  /* 1 - stage 2 */ pcm_b += (MUL_16S_16S(-30605, buffer[26])) >> 1;
  /* 1 - stage 2 */ pcm_a += (MUL_16S_16S(-23063, buffer[38])) << 1;
  /* 1 - stage 2 */ pcm_b += (MUL_16S_16S(8317, buffer[38])) << 3;
  /* 1 - stage 2 */ pcm_a += (MUL_16S_16S(27561, buffer[42])) << 1;
  /* 1 - stage 2 */ pcm_b += (MUL_16S_16S(9553, buffer[42])) << 2;
  /* 1 - stage 2 */ pcm_a += (MUL_16S_16S(2309, buffer[54])) << 3;
  /* 1 - stage 2 */ pcm_b += (MUL_16S_16S(22117, buffer[54])) >> 4;
  /* 1 - stage 2 */ pcm_a += (MUL_16S_16S(12705, buffer[58])) >> 1;
  /* 1 - stage 2 */ pcm_b += (MUL_16S_16S(16383, buffer[58])) >> 2;
  /* 1 - stage 2 */ pcm_a += (MUL_16S_16S(6239, buffer[70])) >> 3;
  /* 1 - stage 2 */ pcm_b += (MUL_16S_16S(7543, buffer[70])) >> 3;
  /* 1 - stage 2 */ pcm_a += (MUL_16S_16S(9251, buffer[74])) >> 4;
  /* 1 - stage 2 */ pcm_b += (MUL_16S_16S(8603, buffer[74])) >> 6;
  /* 1 - stage 2 */ pcm_a /= 32768;
  CLIP_INT16(pcm_a);
  pcm[2 << strideShift] = (int16_t)pcm_a;
  /* 1 - stage 2 */ pcm_b /= 32768;
  CLIP_INT16(pcm_b);
  pcm[6 << strideShift] = (int16_t)pcm_b;
  /* 1 - stage 3 */ pcm_a = 0;
  /* 1 - stage 3 */ pcm_b = 0;
  /* 1 - stage 3 */ pcm_a += (MUL_16S_16S(-16457, buffer[7])) >> 6;
  /* 1 - stage 3 */ pcm_b += (MUL_16S_16S(16913, buffer[7])) >> 5;
  /* 1 - stage 3 */ pcm_a += (MUL_16S_16S(19083, buffer[9])) >> 5;
  /* 1 - stage 3 */ pcm_b += (MUL_16S_16S(-8443, buffer[9])) >> 7;
  /* 1 - stage 3 */ pcm_a += (MUL_16S_16S(-23641, buffer[23])) >> 2;
  /* 1 - stage 3 */ pcm_b += (MUL_16S_16S(3687, buffer[23])) << 1;
  /* 1 - stage 3 */ pcm_a += (MUL_16S_16S(-29015, buffer[25])) >> 4;
  /* 1 - stage 3 */ pcm_b += (MUL_16S_16S(-301, buffer[25])) << 5;
  /* 1 - stage 3 */ pcm_a += (MUL_16S_16S(-12889, buffer[39])) << 2;
  /* 1 - stage 3 */ pcm_b += (MUL_16S_16S(15447, buffer[39])) << 2;
  /* 1 - stage 3 */ pcm_a += (MUL_16S_16S(6145, buffer[41])) << 3;
  /* 1 - stage 3 */ pcm_b += (MUL_16S_16S(10255, buffer[41])) << 2;
  /* 1 - stage 3 */ pcm_a += (MUL_16S_16S(24211, buffer[55])) >> 1;
  /* 1 - stage 3 */ pcm_b += (MUL_16S_16S(-18233, buffer[55])) >> 3;
  /* 1 - stage 3 */ pcm_a += (MUL_16S_16S(23469, buffer[57])) >> 2;
  /* 1 - stage 3 */ pcm_b += (MUL_16S_16S(9405, buffer[57])) >> 1;
  /* 1 - stage 3 */ pcm_a += (MUL_16S_16S(21223, buffer[71])) >> 8;
  /* 1 - stage 3 */ pcm_b += (MUL_16S_16S(1499, buffer[71])) >> 1;
  /* 1 - stage 3 */ pcm_a += (MUL_16S_16S(26913, buffer[73])) >> 6;
  /* 1 - stage 3 */ pcm_b += (MUL_16S_16S(26189, buffer[73])) >> 7;
  /* 1 - stage 3 */ pcm_a /= 32768;
  CLIP_INT16(pcm_a);
  pcm[3 << strideShift] = (int16_t)pcm_a;
  /* 1 - stage 3 */ pcm_b /= 32768;
  CLIP_INT16(pcm_b);
  pcm[5 << strideShift] = (int16_t)pcm_b;
  /* 1 - stage 4 */ pcm_a = 0;
  /* 1 - stage 4 */ pcm_a += (MUL_16S_16S(10445, buffer[8])) >> 4;
  /* 1 - stage 4 */ pcm_a += (MUL_16S_16S(-5297, buffer[24])) << 1;
  /* 1 - stage 4 */ pcm_a += (MUL_16S_16S(22299, buffer[40])) << 2;
  /* 1 - stage 4 */ pcm_a += (MUL_16S_16S(10603, buffer[56]));
  /* 1 - stage 4 */ pcm_a += (MUL_16S_16S(9539, buffer[72])) >> 4;
  /* 1 - stage 4 */ pcm_a /= 32768;
  CLIP_INT16(pcm_a);
  pcm[4 << strideShift] = (int16_t)pcm_a;
}