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#include <stdlib.h>
#include <math.h>
#include <stdio.h>
#include <string.h>
#include <types.h>
#include "assertions.h"
#include "PHY/TOOLS/time_meas.h"
#include "defs.h"
#include "ldpc384_byte.c"
#include "ldpc352_byte.c"
#include "ldpc320_byte.c"
#include "ldpc288_byte.c"
#include "ldpc256_byte.c"
#include "ldpc240_byte.c"
#include "ldpc224_byte.c"
#include "ldpc208_byte.c"
#include "ldpc192_byte.c"
#include "ldpc176_byte.c"
#include "ldpc_BG2_Zc384_byte.c"
#include "ldpc_BG2_Zc352_byte.c"
#include "ldpc_BG2_Zc320_byte.c"
#include "ldpc_BG2_Zc288_byte.c"
#include "ldpc_BG2_Zc256_byte.c"
#include "ldpc_BG2_Zc240_byte.c"
#include "ldpc_BG2_Zc224_byte.c"
#include "ldpc_BG2_Zc208_byte.c"
#include "ldpc_BG2_Zc192_byte.c"
#include "ldpc_BG2_Zc176_byte.c"
#include "ldpc_BG2_Zc160_byte.c"
#include "ldpc_BG2_Zc144_byte.c"
#include "ldpc_BG2_Zc128_byte.c"
#include "ldpc_BG2_Zc120_byte.c"
#include "ldpc_BG2_Zc112_byte.c"
#include "ldpc_BG2_Zc104_byte.c"
#include "ldpc_BG2_Zc96_byte.c"
#include "ldpc_BG2_Zc88_byte.c"
#include "ldpc_BG2_Zc80_byte.c"
#include "ldpc_BG2_Zc72_byte.c"
void encode_parity_check_part_optim(uint8_t *c,uint8_t *d, short BG,short Zc,short Kb)
{
if (BG==1)
{
switch (Zc)
{
case 2: break;
case 3: break;
case 4: break;
case 5: break;
case 6: break;
case 7: break;
case 8: break;
case 9: break;
case 10: break;
case 11: break;
case 12: break;
case 13: break;
case 14: break;
case 15: break;
case 16: break;
case 18: break;
case 20: break;
case 22: break;
case 24: break;
case 26: break;
case 28: break;
case 30: break;
case 32: break;
case 36: break;
case 40: break;
case 44: break;
case 48: break;
case 52: break;
case 56: break;
case 60: break;
case 64: break;
case 72: break;
case 80: break;
case 88: break;
case 96: break;
case 104: break;
case 112: break;
case 120: break;
case 128: break;
case 144: break;
case 160: break;
case 176: ldpc176_byte(c,d); break;
case 192: ldpc192_byte(c,d); break;
case 208: ldpc208_byte(c,d); break;
case 224: ldpc224_byte(c,d); break;
case 240: ldpc240_byte(c,d); break;
case 256: ldpc256_byte(c,d); break;
case 288: ldpc288_byte(c,d); break;
case 320: ldpc320_byte(c,d); break;
case 352: ldpc352_byte(c,d); break;
case 384: ldpc384_byte(c,d); break;
default: AssertFatal(0,"BG %d Zc %d is not supported yet\n",BG,Zc); break;
}
}
else if (BG==2) {
switch (Zc)
{
case 2: break;
case 3: break;
case 4: break;
case 5: break;
case 6: break;
case 7: break;
case 8: break;
case 9: break;
case 10: break;
case 11: break;
case 12: break;
case 13: break;
case 14: break;
case 15: break;
case 16: break;
case 18: break;
case 20: break;
case 22: break;
case 24: break;
case 26: break;
case 28: break;
case 30: break;
case 32: break;
case 36: break;
case 40: break;
case 44: break;
case 48: break;
case 52: break;
case 56: break;
case 60: break;
case 64: break;
case 72: ldpc_BG2_Zc72_byte(c,d); break;
case 80: ldpc_BG2_Zc80_byte(c,d); break;
case 88: ldpc_BG2_Zc88_byte(c,d); break;
case 96: ldpc_BG2_Zc96_byte(c,d); break;
case 104: ldpc_BG2_Zc104_byte(c,d); break;
case 112: ldpc_BG2_Zc112_byte(c,d); break;
case 120: ldpc_BG2_Zc120_byte(c,d); break;
case 128: ldpc_BG2_Zc128_byte(c,d); break;
case 144: ldpc_BG2_Zc144_byte(c,d); break;
case 160: ldpc_BG2_Zc160_byte(c,d); break;
case 176: ldpc_BG2_Zc176_byte(c,d); break;
case 192: ldpc_BG2_Zc192_byte(c,d); break;
case 208: ldpc_BG2_Zc208_byte(c,d); break;
case 224: ldpc_BG2_Zc224_byte(c,d); break;
case 240: ldpc_BG2_Zc240_byte(c,d); break;
case 256: ldpc_BG2_Zc256_byte(c,d); break;
case 288: ldpc_BG2_Zc288_byte(c,d); break;
case 320: ldpc_BG2_Zc320_byte(c,d); break;
case 352: ldpc_BG2_Zc352_byte(c,d); break;
case 384: ldpc_BG2_Zc384_byte(c,d); break;
default: AssertFatal(0,"BG %d Zc %d is not supported yet\n",BG,Zc); break;
}
}
else {
AssertFatal(0,"BG %d is not supported yet\n",BG);
}
}
int ldpc_encoder_optim(unsigned char *test_input,unsigned char *channel_input,short block_length,int nom_rate,int denom_rate,time_stats_t *tinput,time_stats_t *tprep,time_stats_t *tparity,time_stats_t *toutput)
{
short BG,Zc,Kb,nrows,ncols;
int i,i1;
int no_punctured_columns,removed_bit;
//Table of possible lifting sizes
short lift_size[51]= {2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,18,20,22,24,26,28,30,32,36,40,44,48,52,56,60,64,72,80,88,96,104,112,120,128,144,160,176,192,208,224,240,256,288,320,352,384};
int simd_size;
//determine number of bits in codeword
//if (block_length>3840)
{
BG=1;
Kb = 22;
nrows=46; //parity check bits
ncols=22; //info bits
}
/*else if (block_length<=3840)
{
BG=2;
nrows=42; //parity check bits
ncols=10; // info bits
if (block_length>640)
Kb = 10;
else if (block_length>560)
Kb = 9;
else if (block_length>192)
Kb = 8;
else
Kb = 6;
}*/
//find minimum value in all sets of lifting size
Zc=0;
for (i1=0; i1 < 51; i1++)
{
if (lift_size[i1] >= (double) block_length/Kb)
{
Zc = lift_size[i1];
//printf("%d\n",Zc);
break;
}
}
AssertFatal(Zc>0,"no valid Zc found for block length %d\n",block_length);
printf("ldpc_encoder_optim: BG %d, Zc %d, Kb %d, block_length %d\n",BG,Zc,Kb,block_length);
if ((Zc&31) > 0) simd_size = 16;
else simd_size = 32;
unsigned char c[22*Zc] __attribute__((aligned(32))); //padded input, unpacked, max size
unsigned char d[46*Zc] __attribute__((aligned(32))); //coded parity part output, unpacked, max size
unsigned char c_extension[2*22*Zc*simd_size] __attribute__((aligned(32))); //double size matrix of c
// calculate number of punctured bits
no_punctured_columns=(int)((nrows-2)*Zc+block_length-block_length/((float)nom_rate/(float)denom_rate))/Zc;
removed_bit=(nrows-no_punctured_columns-2) * Zc+block_length-(int)(block_length/((float)nom_rate/(float)denom_rate));
// printf("%d\n",no_punctured_columns);
// printf("%d\n",removed_bit);
// unpack input
memset(c,0,sizeof(unsigned char) * ncols * Zc);
memset(d,0,sizeof(unsigned char) * nrows * Zc);
start_meas(tinput);
for (i=0; i<block_length; i++)
{
//c[i] = test_input[i/8]<<(i%8);
//c[i]=c[i]>>7&1;
c[i]=(test_input[i/8]&(1<<(i&7)))>>(i&7);
}
stop_meas(tinput);
if ((BG==1 && Zc>176) || (BG==2 && Zc>64)) {
// extend matrix
start_meas(tprep);
for (i1=0; i1 < ncols; i1++)
{
memcpy(&c_extension[2*i1*Zc], &c[i1*Zc], Zc*sizeof(unsigned char));
memcpy(&c_extension[(2*i1+1)*Zc], &c[i1*Zc], Zc*sizeof(unsigned char));
}
for (i1=1;i1<simd_size;i1++) {
memcpy(&c_extension[(2*ncols*Zc*i1)], &c_extension[i1], (2*ncols*Zc*sizeof(unsigned char))-i1);
// memset(&c_extension[(2*ncols*Zc*i1)],0,i1);
/*
printf("shift %d: ",i1);
for (int j=0;j<64;j++) printf("%d ",c_extension[(2*ncols*Zc*i1)+j]);
printf("\n");
*/
}
stop_meas(tprep);
//parity check part
start_meas(tparity);
encode_parity_check_part_optim(c_extension, d, BG, Zc, Kb);
stop_meas(tparity);
}
else {
if (encode_parity_check_part_orig(c, d, BG, Zc, Kb, block_length)!=0) {
printf("Problem with encoder\n");
return(-1);
}
}
start_meas(toutput);
// information part and puncture columns
memcpy(&channel_input[0], &c[2*Zc], (block_length-2*Zc)*sizeof(unsigned char));
memcpy(&channel_input[block_length-2*Zc], &d[0], ((nrows-no_punctured_columns) * Zc-removed_bit)*sizeof(unsigned char));
stop_meas(toutput);
return 0;
}