#include "ref.h"
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arm_status ref_mat_scale_f32(
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const arm_matrix_instance_f32 * pSrc,
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float32_t scale,
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arm_matrix_instance_f32 * pDst)
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{
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uint32_t i;
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uint32_t numSamples; /* total number of elements in the matrix */
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/* Total number of samples in the input matrix */
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numSamples = (uint32_t) pSrc->numRows * pSrc->numCols;
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for(i=0;i<numSamples;i++)
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{
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pDst->pData[i] = pSrc->pData[i] * scale;
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}
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return ARM_MATH_SUCCESS;
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}
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arm_status ref_mat_scale_q31(
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const arm_matrix_instance_q31 * pSrc,
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q31_t scale,
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int32_t shift,
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arm_matrix_instance_q31 * pDst)
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{
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uint32_t i;
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uint32_t numSamples; /* total number of elements in the matrix */
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int32_t totShift = shift + 1;
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q31_t tmp;
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/* Total number of samples in the input matrix */
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numSamples = (uint32_t) pSrc->numRows * pSrc->numCols;
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for(i=0;i<numSamples;i++)
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{
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tmp = ((q63_t)pSrc->pData[i] * scale) >> 32;
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pDst->pData[i] = ref_sat_q31((q63_t)tmp << totShift );
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}
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return ARM_MATH_SUCCESS;
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}
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arm_status ref_mat_scale_q15(
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const arm_matrix_instance_q15 * pSrc,
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q15_t scale,
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int32_t shift,
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arm_matrix_instance_q15 * pDst)
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{
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uint32_t i;
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uint32_t numSamples; /* total number of elements in the matrix */
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int32_t totShift = 15 - shift;
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/* Total number of samples in the input matrix */
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numSamples = (uint32_t) pSrc->numRows * pSrc->numCols;
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for(i=0;i<numSamples;i++)
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{
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pDst->pData[i] = ref_sat_q15( ((q31_t)pSrc->pData[i] * scale) >> totShift);
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}
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return ARM_MATH_SUCCESS;
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}
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