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/*-
* Copyright (c) 2015 - 2016 Nathanial Sloss <nathanialsloss@yahoo.com.au>
* All rights reserved.
*
* This software is dedicated to the memory of -
* Baron James Anlezark (Barry) - 1 Jan 1949 - 13 May 2012.
*
* Barry was a man who loved his music.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <math.h>
#include <stdio.h>
#include <stdint.h>
static const double sbc8_coeffs[] = {
0.00000000e+00, 1.56575398e-04, 3.43256425e-04, 5.54620202e-04,
8.23919506e-04, 1.13992507e-03, 1.47640169e-03, 1.78371725e-03,
2.01182542e-03, 2.10371989e-03, 1.99454554e-03, 1.61656283e-03,
9.02154502e-04, -1.78805361e-04, -1.64973098e-03, -3.49717454e-03,
5.65949473e-03, 8.02941163e-03, 1.04584443e-02, 1.27472335e-02,
1.46525263e-02, 1.59045603e-02, 1.62208471e-02, 1.53184106e-02,
1.29371806e-02, 8.85757540e-03, 2.92408442e-03, -4.91578024e-03,
-1.46404076e-02, -2.61098752e-02, -3.90751381e-02, -5.31873032e-02,
6.79989431e-02, 8.29847578e-02, 9.75753918e-02, 1.11196689e-01,
1.23264548e-01, 1.33264415e-01, 1.40753505e-01, 1.45389847e-01,
1.46955068e-01, 1.45389847e-01, 1.40753505e-01, 1.33264415e-01,
1.23264548e-01, 1.11196689e-01, 9.75753918e-02, 8.29847578e-02,
-6.79989431e-02, -5.31873032e-02, -3.90751381e-02, -2.61098752e-02,
-1.46404076e-02, -4.91578024e-03, 2.92408442e-03, 8.85757540e-03,
1.29371806e-02, 1.53184106e-02, 1.62208471e-02, 1.59045603e-02,
1.46525263e-02, 1.27472335e-02, 1.04584443e-02, 8.02941163e-03,
-5.65949473e-03, -3.49717454e-03, -1.64973098e-03, -1.78805361e-04,
9.02154502e-04, 1.61656283e-03, 1.99454554e-03, 2.10371989e-03,
2.01182542e-03, 1.78371725e-03, 1.47640169e-03, 1.13992507e-03,
8.23919506e-04, 5.54620202e-04, 3.43256425e-04, 1.56575398e-04,
};
static const double sbc4_coeffs[] = {
0.00000000e+00, 5.36548976e-04, 1.49188357e-03, 2.73370904e-03,
3.83720193e-03, 3.89205149e-03, 1.86581691e-03, -3.06012286e-03,
1.09137620e-02, 2.04385087e-02, 2.88757392e-02, 3.21939290e-02,
2.58767811e-02, 6.13245186e-03, -2.88217274e-02, -7.76463494e-02,
1.35593274e-01, 1.94987841e-01, 2.46636662e-01, 2.81828203e-01,
2.94315332e-01, 2.81828203e-01, 2.46636662e-01, 1.94987841e-01,
-1.35593274e-01, -7.76463494e-02, -2.88217274e-02, 6.13245186e-03,
2.58767811e-02, 3.21939290e-02, 2.88757392e-02, 2.04385087e-02,
-1.09137620e-02, -3.06012286e-03, 1.86581691e-03, 3.89205149e-03,
3.83720193e-03, 2.73370904e-03, 1.49188357e-03, 5.36548976e-04,
};
#define AC(x) (int)(sizeof(x) / sizeof((x)[0]))
int
main(int argc, char **argv)
{
float S[8][16];
int i;
int k;
int count = 0;
printf("/* sbc_coeffs.h - Automatically generated by cosdata.c. */\n"
"\n");
printf("static const float sbc_coeffs8[] = {\n ");
for (k = 0; k < AC(sbc8_coeffs); k++) {
if ((count % 8) == 0 && count != 0)
printf("\n ");
printf("%0.12ff, ", (float)sbc8_coeffs[k]);
count++;
}
printf("\n};\n");
count = 0;
printf("static const float sbc_coeffs4[] = {\n ");
for (k = 0; k < AC(sbc4_coeffs); k++) {
if ((count % 8) == 0 && count != 0)
printf("\n ");
printf("%0.12ff, ", (float)sbc4_coeffs[k]);
count++;
}
printf("\n};\n");
count = 0;
printf("static const float cosdata8[8][16] = {\n ");
for (i = 0; i < 8; i++) {
for (k = 0; k < 16; k++) {
S[i][k] = cosf((float)((i + 0.5) * (k - 4) * (M_PI / 8.0)));
if ((count % 8) == 0 && count != 0)
printf("\n ");
if (k == 0)
printf("{ ");
printf("%0.12ff, ", S[i][k]);
if (k == 15)
printf("},");
count++;
}
}
printf("\n};\n");
count = 0;
printf("static const float cosdata4[4][8] = {\n ");
for (i = 0; i < 4; i++) {
for (k = 0; k < 8; k++) {
S[i][k] = cosf((float)((i + 0.5) * (k - 2) * (M_PI / 4.0)));
if ((count % 8) == 0 && count != 0)
printf("\n ");
if (k == 0)
printf("{ ");
printf("%0.12ff, ", S[i][k]);
if (k == 7)
printf("},");
count++;
}
}
printf("\n};\n");
count = 0;
printf("static const float cosdecdata8[8][16] = {\n ");
for (i = 0; i < 8; i++) {
for (k = 0; k < 16; k++) {
S[i][k] = cosf((float)((i + 0.5) * (k + 4) * (M_PI / 8.0)));
if ((count % 8) == 0 && count != 0)
printf("\n ");
if (k == 0)
printf("{ ");
printf("%0.12ff, ", S[i][k]);
if (k == 15)
printf("},");
count++;
}
}
printf("\n};\n");
count = 0;
printf("static const float cosdecdata4[4][8] = {\n ");
for (i = 0; i < 4; i++) {
for (k = 0; k < 8; k++) {
S[i][k] = cosf((float)((i + 0.5) * (k + 2) * (M_PI / 4.0)));
if ((count % 8) == 0 && count != 0)
printf("\n ");
if (k == 0)
printf("{ ");
printf("%0.12ff, ", S[i][k]);
if (k == 7)
printf("},");
count++;
}
}
printf("\n};\n");
return (0);
}
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