From f7de54fc6fa6b40dfa2dfbe4c2a8ee933affa126 Mon Sep 17 00:00:00 2001
From: JanHenrik <janhenrik@janhenrik.org>
Date: Wed, 1 Apr 2020 00:40:03 +0200
Subject: added files

---
 .../RefLibs/src/SupportFunctions/float_to_fixed.c  | 52 ++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 midi-dials/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/SupportFunctions/float_to_fixed.c

(limited to 'midi-dials/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/SupportFunctions/float_to_fixed.c')

diff --git a/midi-dials/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/SupportFunctions/float_to_fixed.c b/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/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);
+	}
+}
-- 
cgit