diff options
Diffstat (limited to 'fw/hid-dials/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/MatrixFunctions/mat_inverse.c')
| -rw-r--r-- | fw/hid-dials/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/MatrixFunctions/mat_inverse.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/fw/hid-dials/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/MatrixFunctions/mat_inverse.c b/fw/hid-dials/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/MatrixFunctions/mat_inverse.c new file mode 100644 index 0000000..74d3ccc --- /dev/null +++ b/fw/hid-dials/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/MatrixFunctions/mat_inverse.c @@ -0,0 +1,57 @@ +#include "ref.h"
+
+arm_status ref_mat_inverse_f32(
+ const arm_matrix_instance_f32 * pSrc,
+ arm_matrix_instance_f32 * pDst)
+{
+ float32_t det;
+ uint32_t i, size;
+ arm_matrix_instance_f32 tmp;
+
+ tmp.numCols = pSrc->numCols;
+ tmp.numRows = pSrc->numRows;
+ tmp.pData = scratchArray;
+
+ det = ref_detrm(pSrc->pData,scratchArray,pSrc->numCols);
+
+ size = pSrc->numCols * pSrc->numCols;
+
+ ref_cofact(pSrc->pData,scratchArray,scratchArray + size,pSrc->numCols);
+
+ ref_mat_trans_f32(&tmp,pDst);
+
+ for(i=0;i<size;i++)
+ {
+ pDst->pData[i] /= det;
+ }
+
+ return ARM_MATH_SUCCESS;
+}
+
+arm_status ref_mat_inverse_f64(
+ const arm_matrix_instance_f64 * pSrc,
+ arm_matrix_instance_f64 * pDst)
+{
+ float64_t det;
+ uint32_t i, size;
+ arm_matrix_instance_f64 tmp;
+
+ tmp.numCols = pSrc->numCols;
+ tmp.numRows = pSrc->numRows;
+ tmp.pData = (float64_t*)scratchArray;
+
+ det = ref_detrm64(pSrc->pData,(float64_t*)scratchArray,pSrc->numCols);
+
+ size = pSrc->numCols * pSrc->numCols;
+
+ ref_cofact64(pSrc->pData,(float64_t*)scratchArray,(float64_t*)scratchArray + size,pSrc->numCols);
+
+ ref_mat_trans_f64(&tmp,pDst);
+
+ for(i=0;i<size;i++)
+ {
+ pDst->pData[i] /= det;
+ }
+
+ return ARM_MATH_SUCCESS;
+}
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