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[src/bouyer-socketcan]: src/usr.sbin/bta2dpd/cosdata-gen 3966
details: https://anonhg.NetBSD.org/src/rev/06f1799ac25a
branches: bouyer-socketcan
changeset: 820818:06f1799ac25a
user: christos <christos%NetBSD.org@localhost>
date: Mon Jan 30 15:50:22 2017 +0000
description:
3966
diffstat:
usr.sbin/bta2dpd/cosdata-gen/cosdata.c | 140 +++++++++++++++++++++++++++++++++
1 files changed, 140 insertions(+), 0 deletions(-)
diffs (144 lines):
diff -r 5f91ad545ccb -r 06f1799ac25a usr.sbin/bta2dpd/cosdata-gen/cosdata.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/usr.sbin/bta2dpd/cosdata-gen/cosdata.c Mon Jan 30 15:50:22 2017 +0000
@@ -0,0 +1,140 @@
+/* $NetBSD: cosdata.c,v 1.3.4.2 2017/01/30 15:50:22 christos Exp $ */
+
+/*-
+ * Copyright (c) 2015 - 2016 Nathanial Sloss <nathanialsloss%yahoo.com.au@localhost>
+ * 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>
+
+static const double sbc_coeffs8[] = {
+ 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 sbc_coeffs4[] = {
+ 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 COEFFS_MULTI (1 << 12)
+#define SI_MULTI 512
+
+static void
+arrayprint(const char *name, const double *arr, size_t len)
+{
+ size_t k, count;
+
+ printf("static const int32_t %s[] = {\n\t", name);
+ for (count = k = 0; k < len; k++, count++) {
+ if (count % 8 == 0 && count != 0)
+ printf("\n\t");
+ printf("%d, ", (int)roundf((float)arr[k] * COEFFS_MULTI));
+ }
+ printf("\n};\n");
+}
+
+#define ARRAYPRINT(a) arrayprint(#a, a, sizeof(a) / sizeof(a[0]))
+
+static void
+cosprint(int lim, int sgn)
+{
+ size_t count, i, k;
+ size_t mi = lim * 4;
+ size_t mk = mi * 2;
+ int dk = sgn * lim * 2;
+ double mp = M_PI_4 / lim;
+ float val;
+
+ printf("static const int32_t cos%sdata%zu[%zu][%zu] = {\n\t",
+ sgn == -1 ? "" : "dec", mi, mi, mk);
+
+ for (count = 0, i = 0; i < mi; i++) {
+ for (k = 0; k < mk; k++, count++) {
+ if (count % 8 == 0 && count != 0)
+ printf("\n\t");
+ if (k == 0)
+ printf("{ ");
+
+ val = cosf((i + 0.5) * ((int)k + dk) * mp);
+ printf("%d, ", (int)roundf(val * SI_MULTI));
+
+ if (k == mk - 1)
+ printf("},");
+ }
+ }
+ printf("\n};\n");
+}
+
+int
+main(void)
+{
+ printf("/* sbc_coeffs.h - Automatically generated by cosdata.c. */\n"
+ "\n");
+
+ printf("#define\tSIMULTI\t%d\n\n", SI_MULTI);
+ printf("#define\tCOEFFSMULTI\t%d\n\n", COEFFS_MULTI);
+
+ ARRAYPRINT(sbc_coeffs8);
+ ARRAYPRINT(sbc_coeffs4);
+
+ cosprint(2, -1);
+ cosprint(1, -1);
+ cosprint(2, 1);
+ cosprint(1, 1);
+
+ return 0;
+}
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