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Diffstat (limited to 'tmk_core/tool/mbed/mbed-sdk/libraries/dsp/cmsis_dsp/MatrixFunctions/arm_mat_trans_q31.c')
| -rw-r--r-- | tmk_core/tool/mbed/mbed-sdk/libraries/dsp/cmsis_dsp/MatrixFunctions/arm_mat_trans_q31.c | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/tmk_core/tool/mbed/mbed-sdk/libraries/dsp/cmsis_dsp/MatrixFunctions/arm_mat_trans_q31.c b/tmk_core/tool/mbed/mbed-sdk/libraries/dsp/cmsis_dsp/MatrixFunctions/arm_mat_trans_q31.c new file mode 100644 index 0000000000..636eb45eb8 --- /dev/null +++ b/tmk_core/tool/mbed/mbed-sdk/libraries/dsp/cmsis_dsp/MatrixFunctions/arm_mat_trans_q31.c @@ -0,0 +1,210 @@ +/* ---------------------------------------------------------------------- +* Copyright (C) 2010-2013 ARM Limited. All rights reserved. +* +* $Date: 17. January 2013 +* $Revision: V1.4.1 +* +* Project: CMSIS DSP Library +* Title: arm_mat_trans_q31.c +* +* Description: Q31 matrix transpose. +* +* Target Processor: Cortex-M4/Cortex-M3/Cortex-M0 +* +* Redistribution and use in source and binary forms, with or without +* modification, are permitted provided that the following conditions +* are met: +* - Redistributions of source code must retain the above copyright +* notice, this list of conditions and the following disclaimer. +* - 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. +* - Neither the name of ARM LIMITED nor the names of its contributors +* may be used to endorse or promote products derived from this +* software without specific prior written permission. +* +* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 +* COPYRIGHT OWNER 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 "arm_math.h" + +/** + * @ingroup groupMatrix + */ + +/** + * @addtogroup MatrixTrans + * @{ + */ + +/* + * @brief Q31 matrix transpose. + * @param[in] *pSrc points to the input matrix + * @param[out] *pDst points to the output matrix + * @return The function returns either <code>ARM_MATH_SIZE_MISMATCH</code> + * or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking. + */ + +arm_status arm_mat_trans_q31( + const arm_matrix_instance_q31 * pSrc, + arm_matrix_instance_q31 * pDst) +{ + q31_t *pIn = pSrc->pData; /* input data matrix pointer */ + q31_t *pOut = pDst->pData; /* output data matrix pointer */ + q31_t *px; /* Temporary output data matrix pointer */ + uint16_t nRows = pSrc->numRows; /* number of nRows */ + uint16_t nColumns = pSrc->numCols; /* number of nColumns */ + +#ifndef ARM_MATH_CM0_FAMILY + + /* Run the below code for Cortex-M4 and Cortex-M3 */ + + uint16_t blkCnt, i = 0u, row = nRows; /* loop counters */ + arm_status status; /* status of matrix transpose */ + + +#ifdef ARM_MATH_MATRIX_CHECK + + + /* Check for matrix mismatch condition */ + if((pSrc->numRows != pDst->numCols) || (pSrc->numCols != pDst->numRows)) + { + /* Set status as ARM_MATH_SIZE_MISMATCH */ + status = ARM_MATH_SIZE_MISMATCH; + } + else +#endif /* #ifdef ARM_MATH_MATRIX_CHECK */ + + { + /* Matrix transpose by exchanging the rows with columns */ + /* row loop */ + do + { + /* Apply loop unrolling and exchange the columns with row elements */ + blkCnt = nColumns >> 2u; + + /* The pointer px is set to starting address of the column being processed */ + px = pOut + i; + + /* 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) + { + /* Read and store the input element in the destination */ + *px = *pIn++; + + /* Update the pointer px to point to the next row of the transposed matrix */ + px += nRows; + + /* Read and store the input element in the destination */ + *px = *pIn++; + + /* Update the pointer px to point to the next row of the transposed matrix */ + px += nRows; + + /* Read and store the input element in the destination */ + *px = *pIn++; + + /* Update the pointer px to point to the next row of the transposed matrix */ + px += nRows; + + /* Read and store the input element in the destination */ + *px = *pIn++; + + /* Update the pointer px to point to the next row of the transposed matrix */ + px += nRows; + + /* Decrement the column loop counter */ + blkCnt--; + } + + /* Perform matrix transpose for last 3 samples here. */ + blkCnt = nColumns % 0x4u; + + while(blkCnt > 0u) + { + /* Read and store the input element in the destination */ + *px = *pIn++; + + /* Update the pointer px to point to the next row of the transposed matrix */ + px += nRows; + + /* Decrement the column loop counter */ + blkCnt--; + } + +#else + + /* Run the below code for Cortex-M0 */ + + uint16_t col, i = 0u, row = nRows; /* loop counters */ + arm_status status; /* status of matrix transpose */ + + +#ifdef ARM_MATH_MATRIX_CHECK + + /* Check for matrix mismatch condition */ + if((pSrc->numRows != pDst->numCols) || (pSrc->numCols != pDst->numRows)) + { + /* Set status as ARM_MATH_SIZE_MISMATCH */ + status = ARM_MATH_SIZE_MISMATCH; + } + else +#endif /* #ifdef ARM_MATH_MATRIX_CHECK */ + + { + /* Matrix transpose by exchanging the rows with columns */ + /* row loop */ + do + { + /* The pointer px is set to starting address of the column being processed */ + px = pOut + i; + + /* Initialize column loop counter */ + col = nColumns; + + while(col > 0u) + { + /* Read and store the input element in the destination */ + *px = *pIn++; + + /* Update the pointer px to point to the next row of the transposed matrix */ + px += nRows; + + /* Decrement the column loop counter */ + col--; + } + +#endif /* #ifndef ARM_MATH_CM0_FAMILY */ + + i++; + + /* Decrement the row loop counter */ + row--; + + } + while(row > 0u); /* row loop end */ + + /* set status as ARM_MATH_SUCCESS */ + status = ARM_MATH_SUCCESS; + } + + /* Return to application */ + return (status); +} + +/** + * @} end of MatrixTrans group + */ |