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Diffstat (limited to 'src/modules/mathlib/CMSIS/DSP_Lib/Source/MatrixFunctions/arm_mat_trans_q15.c')
| -rw-r--r-- | src/modules/mathlib/CMSIS/DSP_Lib/Source/MatrixFunctions/arm_mat_trans_q15.c | 282 |
1 files changed, 282 insertions, 0 deletions
diff --git a/src/modules/mathlib/CMSIS/DSP_Lib/Source/MatrixFunctions/arm_mat_trans_q15.c b/src/modules/mathlib/CMSIS/DSP_Lib/Source/MatrixFunctions/arm_mat_trans_q15.c new file mode 100644 index 000000000..be9c78e00 --- /dev/null +++ b/src/modules/mathlib/CMSIS/DSP_Lib/Source/MatrixFunctions/arm_mat_trans_q15.c @@ -0,0 +1,282 @@ +/* ----------------------------------------------------------------------
+* Copyright (C) 2010 ARM Limited. All rights reserved.
+*
+* $Date: 15. February 2012
+* $Revision: V1.1.0
+*
+* Project: CMSIS DSP Library
+* Title: arm_mat_trans_q15.c
+*
+* Description: Q15 matrix transpose.
+*
+* 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.
+*
+* Version 0.0.5 2010/04/26
+* incorporated review comments and updated with latest CMSIS layer
+*
+* Version 0.0.3 2010/03/10
+* Initial version
+* -------------------------------------------------------------------- */
+
+#include "arm_math.h"
+
+/**
+ * @ingroup groupMatrix
+ */
+
+/**
+ * @addtogroup MatrixTrans
+ * @{
+ */
+
+/*
+ * @brief Q15 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_q15(
+ const arm_matrix_instance_q15 * pSrc,
+ arm_matrix_instance_q15 * pDst)
+{
+ q15_t *pSrcA = pSrc->pData; /* input data matrix pointer */
+ q15_t *pOut = pDst->pData; /* output data matrix pointer */
+ uint16_t nRows = pSrc->numRows; /* number of nRows */
+ uint16_t nColumns = pSrc->numCols; /* number of nColumns */
+ uint16_t col, row = nRows, i = 0u; /* row and column loop counters */
+ arm_status status; /* status of matrix transpose */
+
+#ifndef ARM_MATH_CM0
+
+ /* Run the below code for Cortex-M4 and Cortex-M3 */
+#ifndef UNALIGNED_SUPPORT_DISABLE
+
+ q31_t in; /* variable to hold temporary output */
+
+#else
+
+ q15_t in;
+
+#endif /* #ifndef UNALIGNED_SUPPORT_DISABLE */
+
+#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 */
+ col = nColumns >> 2u;
+
+ /* The pointer pOut is set to starting address of the column being processed */
+ pOut = pDst->pData + 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(col > 0u)
+ {
+#ifndef UNALIGNED_SUPPORT_DISABLE
+
+ /* Read two elements from the row */
+ in = *__SIMD32(pSrcA)++;
+
+ /* Unpack and store one element in the destination */
+#ifndef ARM_MATH_BIG_ENDIAN
+
+ *pOut = (q15_t) in;
+
+#else
+
+ *pOut = (q15_t) ((in & (q31_t) 0xffff0000) >> 16);
+
+#endif /* #ifndef ARM_MATH_BIG_ENDIAN */
+
+ /* Update the pointer pOut to point to the next row of the transposed matrix */
+ pOut += nRows;
+
+ /* Unpack and store the second element in the destination */
+
+#ifndef ARM_MATH_BIG_ENDIAN
+
+ *pOut = (q15_t) ((in & (q31_t) 0xffff0000) >> 16);
+
+#else
+
+ *pOut = (q15_t) in;
+
+#endif /* #ifndef ARM_MATH_BIG_ENDIAN */
+
+ /* Update the pointer pOut to point to the next row of the transposed matrix */
+ pOut += nRows;
+
+ /* Read two elements from the row */
+#ifndef ARM_MATH_BIG_ENDIAN
+
+ in = *__SIMD32(pSrcA)++;
+
+#else
+
+ in = *__SIMD32(pSrcA)++;
+
+#endif /* #ifndef ARM_MATH_BIG_ENDIAN */
+
+ /* Unpack and store one element in the destination */
+#ifndef ARM_MATH_BIG_ENDIAN
+
+ *pOut = (q15_t) in;
+
+#else
+
+ *pOut = (q15_t) ((in & (q31_t) 0xffff0000) >> 16);
+
+#endif /* #ifndef ARM_MATH_BIG_ENDIAN */
+
+ /* Update the pointer pOut to point to the next row of the transposed matrix */
+ pOut += nRows;
+
+ /* Unpack and store the second element in the destination */
+#ifndef ARM_MATH_BIG_ENDIAN
+
+ *pOut = (q15_t) ((in & (q31_t) 0xffff0000) >> 16);
+
+#else
+
+ *pOut = (q15_t) in;
+
+#endif /* #ifndef ARM_MATH_BIG_ENDIAN */
+
+#else
+ /* Read one element from the row */
+ in = *pSrcA++;
+
+ /* Store one element in the destination */
+ *pOut = in;
+
+ /* Update the pointer px to point to the next row of the transposed matrix */
+ pOut += nRows;
+
+ /* Read one element from the row */
+ in = *pSrcA++;
+
+ /* Store one element in the destination */
+ *pOut = in;
+
+ /* Update the pointer px to point to the next row of the transposed matrix */
+ pOut += nRows;
+
+ /* Read one element from the row */
+ in = *pSrcA++;
+
+ /* Store one element in the destination */
+ *pOut = in;
+
+ /* Update the pointer px to point to the next row of the transposed matrix */
+ pOut += nRows;
+
+ /* Read one element from the row */
+ in = *pSrcA++;
+
+ /* Store one element in the destination */
+ *pOut = in;
+
+#endif /* #ifndef UNALIGNED_SUPPORT_DISABLE */
+
+ /* Update the pointer pOut to point to the next row of the transposed matrix */
+ pOut += nRows;
+
+ /* Decrement the column loop counter */
+ col--;
+ }
+
+ /* Perform matrix transpose for last 3 samples here. */
+ col = nColumns % 0x4u;
+
+#else
+
+ /* Run the below code for Cortex-M0 */
+
+#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 pOut is set to starting address of the column being processed */
+ pOut = pDst->pData + i;
+
+ /* Initialize column loop counter */
+ col = nColumns;
+
+#endif /* #ifndef ARM_MATH_CM0 */
+
+ while(col > 0u)
+ {
+ /* Read and store the input element in the destination */
+ *pOut = *pSrcA++;
+
+ /* Update the pointer pOut to point to the next row of the transposed matrix */
+ pOut += nRows;
+
+ /* Decrement the column loop counter */
+ col--;
+ }
+
+ i++;
+
+ /* Decrement the row loop counter */
+ row--;
+
+ } while(row > 0u);
+
+ /* set status as ARM_MATH_SUCCESS */
+ status = ARM_MATH_SUCCESS;
+ }
+ /* Return to application */
+ return (status);
+}
+
+/**
+ * @} end of MatrixTrans group
+ */
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