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author | px4dev <px4@purgatory.org> | 2013-05-20 00:30:43 +0200 |
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committer | px4dev <px4@purgatory.org> | 2013-05-20 00:30:43 +0200 |
commit | 5576e321fa8cd027b15deeb15b7ca05541fde4fe (patch) | |
tree | b8a8dac6fab2ecdb72c90ece845112161a52997a /src/modules/mathlib/CMSIS/DSP_Lib/Source/ComplexMathFunctions/arm_cmplx_conj_f32.c | |
parent | 3a1c9f14f68054537657851eacb60d930c3d4221 (diff) | |
download | px4-firmware-5576e321fa8cd027b15deeb15b7ca05541fde4fe.tar.gz px4-firmware-5576e321fa8cd027b15deeb15b7ca05541fde4fe.tar.bz2 px4-firmware-5576e321fa8cd027b15deeb15b7ca05541fde4fe.zip |
Use the new prebuilt-library support to wrap the ARM CMSIS DSP library, and update to the version shipped with CMSIS 3.0 r3p2
Diffstat (limited to 'src/modules/mathlib/CMSIS/DSP_Lib/Source/ComplexMathFunctions/arm_cmplx_conj_f32.c')
-rw-r--r-- | src/modules/mathlib/CMSIS/DSP_Lib/Source/ComplexMathFunctions/arm_cmplx_conj_f32.c | 174 |
1 files changed, 0 insertions, 174 deletions
diff --git a/src/modules/mathlib/CMSIS/DSP_Lib/Source/ComplexMathFunctions/arm_cmplx_conj_f32.c b/src/modules/mathlib/CMSIS/DSP_Lib/Source/ComplexMathFunctions/arm_cmplx_conj_f32.c deleted file mode 100644 index 31bbaa7a8..000000000 --- a/src/modules/mathlib/CMSIS/DSP_Lib/Source/ComplexMathFunctions/arm_cmplx_conj_f32.c +++ /dev/null @@ -1,174 +0,0 @@ -/* ----------------------------------------------------------------------
-* Copyright (C) 2010 ARM Limited. All rights reserved.
-*
-* $Date: 15. February 2012
-* $Revision: V1.1.0
-*
-* Project: CMSIS DSP Library
-* Title: arm_cmplx_conj_f32.c
-*
-* Description: Floating-point complex conjugate.
-*
-* Target Processor: Cortex-M4/Cortex-M3/Cortex-M0
-*
-* Version 1.1.0 2012/02/15
-* Updated with more optimizations, bug fixes and minor API changes.
-*
-* Version 1.0.10 2011/7/15
-* Big Endian support added and Merged M0 and M3/M4 Source code.
-*
-* Version 1.0.3 2010/11/29
-* Re-organized the CMSIS folders and updated documentation.
-*
-* Version 1.0.2 2010/11/11
-* Documentation updated.
-*
-* Version 1.0.1 2010/10/05
-* Production release and review comments incorporated.
-*
-* Version 1.0.0 2010/09/20
-* Production release and review comments incorporated.
-* ---------------------------------------------------------------------------- */
-#include "arm_math.h"
-
-/**
- * @ingroup groupCmplxMath
- */
-
-/**
- * @defgroup cmplx_conj Complex Conjugate
- *
- * Conjugates the elements of a complex data vector.
- *
- * The <code>pSrc</code> points to the source data and
- * <code>pDst</code> points to the where the result should be written.
- * <code>numSamples</code> specifies the number of complex samples
- * and the data in each array is stored in an interleaved fashion
- * (real, imag, real, imag, ...).
- * Each array has a total of <code>2*numSamples</code> values.
- * The underlying algorithm is used:
- *
- * <pre>
- * for(n=0; n<numSamples; n++) {
- * pDst[(2*n)+0)] = pSrc[(2*n)+0]; // real part
- * pDst[(2*n)+1)] = -pSrc[(2*n)+1]; // imag part
- * }
- * </pre>
- *
- * There are separate functions for floating-point, Q15, and Q31 data types.
- */
-
-/**
- * @addtogroup cmplx_conj
- * @{
- */
-
-/**
- * @brief Floating-point complex conjugate.
- * @param *pSrc points to the input vector
- * @param *pDst points to the output vector
- * @param numSamples number of complex samples in each vector
- * @return none.
- */
-
-void arm_cmplx_conj_f32(
- float32_t * pSrc,
- float32_t * pDst,
- uint32_t numSamples)
-{
- uint32_t blkCnt; /* loop counter */
-
-#ifndef ARM_MATH_CM0
-
- /* Run the below code for Cortex-M4 and Cortex-M3 */
- float32_t inR1, inR2, inR3, inR4;
- float32_t inI1, inI2, inI3, inI4;
-
- /*loop Unrolling */
- blkCnt = numSamples >> 2u;
-
- /* First part of the processing with loop unrolling. Compute 4 outputs at a time.
- ** a second loop below computes the remaining 1 to 3 samples. */
- while(blkCnt > 0u)
- {
- /* C[0]+jC[1] = A[0]+ j (-1) A[1] */
- /* Calculate Complex Conjugate and then store the results in the destination buffer. */
- /* read real input samples */
- inR1 = pSrc[0];
- /* store real samples to destination */
- pDst[0] = inR1;
- inR2 = pSrc[2];
- pDst[2] = inR2;
- inR3 = pSrc[4];
- pDst[4] = inR3;
- inR4 = pSrc[6];
- pDst[6] = inR4;
-
- /* read imaginary input samples */
- inI1 = pSrc[1];
- inI2 = pSrc[3];
-
- /* conjugate input */
- inI1 = -inI1;
-
- /* read imaginary input samples */
- inI3 = pSrc[5];
-
- /* conjugate input */
- inI2 = -inI2;
-
- /* read imaginary input samples */
- inI4 = pSrc[7];
-
- /* conjugate input */
- inI3 = -inI3;
-
- /* store imaginary samples to destination */
- pDst[1] = inI1;
- pDst[3] = inI2;
-
- /* conjugate input */
- inI4 = -inI4;
-
- /* store imaginary samples to destination */
- pDst[5] = inI3;
-
- /* increment source pointer by 8 to process next sampels */
- pSrc += 8u;
-
- /* store imaginary sample to destination */
- pDst[7] = inI4;
-
- /* increment destination pointer by 8 to store next samples */
- pDst += 8u;
-
- /* Decrement the loop counter */
- blkCnt--;
- }
-
- /* If the numSamples is not a multiple of 4, compute any remaining output samples here.
- ** No loop unrolling is used. */
- blkCnt = numSamples % 0x4u;
-
-#else
-
- /* Run the below code for Cortex-M0 */
- blkCnt = numSamples;
-
-#endif /* #ifndef ARM_MATH_CM0 */
-
- while(blkCnt > 0u)
- {
- /* realOut + j (imagOut) = realIn + j (-1) imagIn */
- /* Calculate Complex Conjugate and then store the results in the destination buffer. */
- *pDst++ = *pSrc++;
- *pDst++ = -*pSrc++;
-
- /* Decrement the loop counter */
- blkCnt--;
- }
-}
-
-/**
- * @} end of cmplx_conj group
- */
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