transceiver: optimize code if optimizations are enabled

There is no point in checking basic stuff ten thousand times per second
since the sizes never change, so it's enough to enable the
checks/assertions for unoptimized (debug) builds.

This significantly decreases branch mispredictions.

Change-Id: Iebd9e91b3c7f37f2dc646d3017c45139977e4d15

1 files changed, 4 insertions, 2 deletions

diff --git a/Transceiver52M/Resampler.cpp b/Transceiver52M/Resampler.cpp
index 7ba0219..2ca6406 100644
--- a/Transceiver52M/Resampler.cpp
+++ b/Transceiver52M/Resampler.cpp
@@ -99,6 +99,7 @@ void Resampler::initFilters(float bw)
 		reverse(&part[0], &part[filt_len]);
 }
 
+#ifndef __OPTIMIZE__
 static bool check_vec_len(int in_len, int out_len, int p, int q)
 {
 	if (in_len % q) {
@@ -129,14 +130,15 @@ static bool check_vec_len(int in_len, int out_len, int p, int q)
 
 	return true;
 }
+#endif
 
 int Resampler::rotate(const float *in, size_t in_len, float *out, size_t out_len)
 {
 	int n, path;
-
+#ifndef __OPTIMIZE__
 	if (!check_vec_len(in_len, out_len, p, q))
 		return -1;
-
+#endif
 	/* Generate output from precomputed input/output paths */
 	for (size_t i = 0; i < out_len; i++) {
 		n = in_index[i];