1 files changed, 64 insertions, 0 deletions
diff --git a/fw/midi-dials/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/MatrixFunctions/mat_scale.c b/fw/midi-dials/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/MatrixFunctions/mat_scale.c
new file mode 100644
index 0000000..d426ad6
--- /dev/null
+++ b/fw/midi-dials/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/MatrixFunctions/mat_scale.c
@@ -0,0 +1,64 @@
+#include "ref.h"
+
+arm_status ref_mat_scale_f32(
+  const arm_matrix_instance_f32 * pSrc,
+  float32_t scale,
+  arm_matrix_instance_f32 * pDst)
+{
+	uint32_t i;
+  uint32_t numSamples;                           /* total number of elements in the matrix  */
+
+	/* Total number of samples in the input matrix */
+	numSamples = (uint32_t) pSrc->numRows * pSrc->numCols;
+	
+	for(i=0;i<numSamples;i++)
+	{
+		pDst->pData[i] = pSrc->pData[i] * scale;
+	}
+	
+	return ARM_MATH_SUCCESS;
+}
+
+arm_status ref_mat_scale_q31(
+  const arm_matrix_instance_q31 * pSrc,
+  q31_t scale,
+  int32_t shift,
+  arm_matrix_instance_q31 * pDst)
+{
+	uint32_t i;
+  uint32_t numSamples;                           /* total number of elements in the matrix  */
+	int32_t totShift = shift + 1; 
+	q31_t tmp;
+
+	/* Total number of samples in the input matrix */
+	numSamples = (uint32_t) pSrc->numRows * pSrc->numCols;
+	
+	for(i=0;i<numSamples;i++)
+	{
+		tmp = ((q63_t)pSrc->pData[i] * scale) >> 32;
+		pDst->pData[i] = ref_sat_q31((q63_t)tmp << totShift );
+	}
+	
+	return ARM_MATH_SUCCESS;
+}
+
+arm_status ref_mat_scale_q15(
+  const arm_matrix_instance_q15 * pSrc,
+  q15_t scale,
+  int32_t shift,
+  arm_matrix_instance_q15 * pDst)
+{
+	uint32_t i;
+  uint32_t numSamples;                           /* total number of elements in the matrix  */
+	int32_t totShift = 15 - shift;
+
+	/* Total number of samples in the input matrix */
+	numSamples = (uint32_t) pSrc->numRows * pSrc->numCols;
+	
+	for(i=0;i<numSamples;i++)
+	{
+		pDst->pData[i] = ref_sat_q15( ((q31_t)pSrc->pData[i] * scale) >> totShift);
+	}
+	
+	return ARM_MATH_SUCCESS;
+}