From 94f94260ace13688285fc8c62687079b26c18854 Mon Sep 17 00:00:00 2001
From: jaseg <git@jaseg.de>
Date: Sun, 20 Dec 2020 15:18:02 +0100
Subject: Submodule-cache WIP

---
 .../DSP/Source/FastMathFunctions/arm_cos_f32.c     | 115 ---------------------
 1 file changed, 115 deletions(-)
 delete mode 100644 fw/midi-dials/Drivers/CMSIS/DSP/Source/FastMathFunctions/arm_cos_f32.c

(limited to 'fw/midi-dials/Drivers/CMSIS/DSP/Source/FastMathFunctions/arm_cos_f32.c')

diff --git a/fw/midi-dials/Drivers/CMSIS/DSP/Source/FastMathFunctions/arm_cos_f32.c b/fw/midi-dials/Drivers/CMSIS/DSP/Source/FastMathFunctions/arm_cos_f32.c
deleted file mode 100644
index 44efbd5..0000000
--- a/fw/midi-dials/Drivers/CMSIS/DSP/Source/FastMathFunctions/arm_cos_f32.c
+++ /dev/null
@@ -1,115 +0,0 @@
-/* ----------------------------------------------------------------------
- * Project:      CMSIS DSP Library
- * Title:        arm_cos_f32.c
- * Description:  Fast cosine calculation for floating-point values
- *
- * $Date:        27. January 2017
- * $Revision:    V.1.5.1
- *
- * Target Processor: Cortex-M cores
- * -------------------------------------------------------------------- */
-/*
- * Copyright (C) 2010-2017 ARM Limited or its affiliates. All rights reserved.
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * 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
- *
- * 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.
- */
-
-#include "arm_math.h"
-#include "arm_common_tables.h"
-/**
- * @ingroup groupFastMath
- */
-
-/**
- * @defgroup cos Cosine
- *
- * Computes the trigonometric cosine function using a combination of table lookup
- * and linear interpolation.  There are separate functions for
- * Q15, Q31, and floating-point data types.
- * The input to the floating-point version is in radians and in the range [0 2*pi) while the
- * fixed-point Q15 and Q31 have a scaled input with the range
- * [0 +0.9999] mapping to [0 2*pi).  The fixed-point range is chosen so that a
- * value of 2*pi wraps around to 0.
- *
- * The implementation is based on table lookup using 256 values together with linear interpolation.
- * The steps used are:
- *  -# Calculation of the nearest integer table index
- *  -# Compute the fractional portion (fract) of the table index.
- *  -# The final result equals <code>(1.0f-fract)*a + fract*b;</code>
- *
- * where
- * <pre>
- *    b=Table[index+0];
- *    c=Table[index+1];
- * </pre>
- */
-
- /**
- * @addtogroup cos
- * @{
- */
-
-/**
- * @brief  Fast approximation to the trigonometric cosine function for floating-point data.
- * @param[in] x input value in radians.
- * @return cos(x).
- */
-
-float32_t arm_cos_f32(
-  float32_t x)
-{
-  float32_t cosVal, fract, in;                   /* Temporary variables for input, output */
-  uint16_t index;                                /* Index variable */
-  float32_t a, b;                                /* Two nearest output values */
-  int32_t n;
-  float32_t findex;
-
-  /* input x is in radians */
-  /* Scale the input to [0 1] range from [0 2*PI] , divide input by 2*pi, add 0.25 (pi/2) to read sine table */
-  in = x * 0.159154943092f + 0.25f;
-
-  /* Calculation of floor value of input */
-  n = (int32_t) in;
-
-  /* Make negative values towards -infinity */
-  if (in < 0.0f)
-  {
-    n--;
-  }
-
-  /* Map input value to [0 1] */
-  in = in - (float32_t) n;
-
-  /* Calculation of index of the table */
-  findex = (float32_t) FAST_MATH_TABLE_SIZE * in;
-  index = ((uint16_t)findex) & 0x1ff;
-
-  /* fractional value calculation */
-  fract = findex - (float32_t) index;
-
-  /* Read two nearest values of input value from the cos table */
-  a = sinTable_f32[index];
-  b = sinTable_f32[index+1];
-
-  /* Linear interpolation process */
-  cosVal = (1.0f-fract)*a + fract*b;
-
-  /* Return the output value */
-  return (cosVal);
-}
-
-/**
- * @} end of cos group
- */
-- 
cgit