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| author | JanHenrik <janhenrik@janhenrik.org> | 2020-01-19 00:56:37 +0100 |
|---|---|---|
| committer | JanHenrik <janhenrik@janhenrik.org> | 2020-01-19 00:56:37 +0100 |
| commit | a81fc41c3eb99e8fc52aa734ee63e13c937aab81 (patch) | |
| tree | 19974c4676ed64d6e4260b79fc3f1eaeda58a289 /Blink/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/MatrixFunctions/mat_scale.c | |
| parent | a96ec5d9995e7e4b7315a192e543b88f0aff4930 (diff) | |
| download | minikbd-a81fc41c3eb99e8fc52aa734ee63e13c937aab81.tar.gz minikbd-a81fc41c3eb99e8fc52aa734ee63e13c937aab81.tar.bz2 minikbd-a81fc41c3eb99e8fc52aa734ee63e13c937aab81.zip | |
added blink example
Diffstat (limited to 'Blink/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/MatrixFunctions/mat_scale.c')
| -rw-r--r-- | Blink/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/MatrixFunctions/mat_scale.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/Blink/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/MatrixFunctions/mat_scale.c b/Blink/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/MatrixFunctions/mat_scale.c new file mode 100644 index 0000000..d426ad6 --- /dev/null +++ b/Blink/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;
+}
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