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| author | jaseg <git@jaseg.net> | 2020-10-14 12:47:28 +0200 |
|---|---|---|
| committer | jaseg <git@jaseg.net> | 2020-10-14 12:47:28 +0200 |
| commit | 6ab94e0b318884bbcb95e2ea3835f951502e1d99 (patch) | |
| tree | 4cc5794b89f89c55ff8370ae252518ab96b5fed3 /fw/midi-dials/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/SupportFunctions/float_to_fixed.c | |
| parent | 1e6e8a2062923b434b2f4f5f2a9f8c0098135b01 (diff) | |
| download | minikbd-6ab94e0b318884bbcb95e2ea3835f951502e1d99.tar.gz minikbd-6ab94e0b318884bbcb95e2ea3835f951502e1d99.tar.bz2 minikbd-6ab94e0b318884bbcb95e2ea3835f951502e1d99.zip | |
Move firmware into subdirectory
Diffstat (limited to 'fw/midi-dials/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/SupportFunctions/float_to_fixed.c')
| -rw-r--r-- | fw/midi-dials/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/SupportFunctions/float_to_fixed.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/fw/midi-dials/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/SupportFunctions/float_to_fixed.c b/fw/midi-dials/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/SupportFunctions/float_to_fixed.c new file mode 100644 index 0000000..107556b --- /dev/null +++ b/fw/midi-dials/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/SupportFunctions/float_to_fixed.c @@ -0,0 +1,52 @@ +#include "ref.h"
+
+void ref_float_to_q31(
+ float32_t * pSrc,
+ q31_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t i;
+ float32_t in;
+
+ for(i=0;i<blockSize;i++)
+ {
+ in = pSrc[i];
+ in *= 2147483648.0f; //scale up
+ in += in > 0.0f ? 0.5f : -0.5f; //round
+ pDst[i] = ref_sat_q31((q63_t)in); //cast and saturate
+ }
+}
+
+void ref_float_to_q15(
+ float32_t * pSrc,
+ q15_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t i;
+ float32_t in;
+
+ for(i=0;i<blockSize;i++)
+ {
+ in = pSrc[i];
+ in *= 32768.0f;
+ in += in > 0.0f ? 0.5f : -0.5f;
+ pDst[i] = ref_sat_q15((q31_t)in);
+ }
+}
+
+void ref_float_to_q7(
+ float32_t * pSrc,
+ q7_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t i;
+ float32_t in;
+
+ for(i=0;i<blockSize;i++)
+ {
+ in = pSrc[i];
+ in *= 128.0f;
+ in += in > 0.0f ? 0.5f : -0.5f;
+ pDst[i] = ref_sat_q7((q15_t)in);
+ }
+}
|