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authorMatthias P. Braendli <matthias.braendli@mpb.li>2014-07-02 17:18:08 +0200
committerMatthias P. Braendli <matthias.braendli@mpb.li>2014-07-02 17:18:08 +0200
commitc9ef2a5b36d9082b2c2c853934a0332aef6564a6 (patch)
tree28561b9aa7092e76450bf31af878ce75e63465f8 /src/GainControl.cpp
parentf8719227d8cb9a228adae3472b7e754aa204d9de (diff)
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Add digital gain to remote control
Diffstat (limited to 'src/GainControl.cpp')
-rw-r--r--src/GainControl.cpp85
1 files changed, 65 insertions, 20 deletions
diff --git a/src/GainControl.cpp b/src/GainControl.cpp
index 6c4254b..0bb0967 100644
--- a/src/GainControl.cpp
+++ b/src/GainControl.cpp
@@ -26,35 +26,47 @@
#include <stdio.h>
#include <stdexcept>
+#include <string>
+using namespace std;
-GainControl::GainControl(size_t framesize, GainMode mode, float factor) :
- ModCodec(ModFormat(framesize * sizeof(complexf)), ModFormat(framesize * sizeof(complexf))),
+
+GainControl::GainControl(size_t framesize,
+ GainMode mode,
+ float digGain,
+ float normalise) :
+ ModCodec(ModFormat(framesize * sizeof(complexf)),
+ ModFormat(framesize * sizeof(complexf))),
+ RemoteControllable("gain"),
#ifdef __SSE__
d_frameSize(framesize * sizeof(complexf) / sizeof(__m128)),
#else // !__SSE__
d_frameSize(framesize),
#endif
- d_factor(factor)
+ d_digGain(digGain),
+ d_normalise(normalise)
{
PDEBUG("GainControl::GainControl(%zu, %u) @ %p\n", framesize, mode, this);
+ /* register the parameters that can be remote controlled */
+ RC_ADD_PARAMETER(digital, "Digital Gain");
+
switch(mode) {
- case GAIN_FIX:
- PDEBUG("Gain mode: fix\n");
- computeGain = computeGainFix;
- break;
- case GAIN_MAX:
- PDEBUG("Gain mode: max\n");
- computeGain = computeGainMax;
- break;
- case GAIN_VAR:
- PDEBUG("Gain mode: var\n");
- computeGain = computeGainVar;
- break;
- default:
- throw std::runtime_error(
- "GainControl::GainControl invalid computation gain mode!");
+ case GAIN_FIX:
+ PDEBUG("Gain mode: fix\n");
+ computeGain = computeGainFix;
+ break;
+ case GAIN_MAX:
+ PDEBUG("Gain mode: max\n");
+ computeGain = computeGainMax;
+ break;
+ case GAIN_VAR:
+ PDEBUG("Gain mode: var\n");
+ computeGain = computeGainVar;
+ break;
+ default:
+ throw std::runtime_error(
+ "GainControl::GainControl invalid computation gain mode!");
}
}
@@ -89,7 +101,7 @@ int GainControl::process(Buffer* const dataIn, Buffer* dataOut)
for (size_t i = 0; i < sizeIn; i += d_frameSize) {
gain128.m = computeGain(in, d_frameSize);
- gain128.m = _mm_mul_ps(gain128.m, _mm_set1_ps(d_factor));
+ gain128.m = _mm_mul_ps(gain128.m, _mm_set1_ps(d_normalise * d_digGain));
PDEBUG("********** Gain: %10f **********\n", gain128.f[0]);
@@ -117,7 +129,7 @@ int GainControl::process(Buffer* const dataIn, Buffer* dataOut)
}
for (size_t i = 0; i < sizeIn; i += d_frameSize) {
- gain = d_factor * computeGain(in, d_frameSize);
+ gain = d_normalise * d_digGain * computeGain(in, d_frameSize);
PDEBUG("********** Gain: %10f **********\n", gain);
@@ -367,3 +379,36 @@ float GainControl::computeGainVar(const complexf* in, size_t sizeIn)
return gain;
}
#endif // __SSE__
+
+void GainControl::set_parameter(const string& parameter, const string& value)
+{
+ stringstream ss(value);
+ ss.exceptions ( stringstream::failbit | stringstream::badbit );
+
+ if (parameter == "digital") {
+ float new_factor;
+ ss >> new_factor;
+ d_digGain = new_factor;
+ }
+ else {
+ stringstream ss;
+ ss << "Parameter '" << parameter
+ << "' is not exported by controllable " << get_rc_name();
+ throw ParameterError(ss.str());
+ }
+}
+
+const string GainControl::get_parameter(const string& parameter) const
+{
+ stringstream ss;
+ if (parameter == "digital") {
+ ss << std::fixed << d_digGain;
+ }
+ else {
+ ss << "Parameter '" << parameter <<
+ "' is not exported by controllable " << get_rc_name();
+ throw ParameterError(ss.str());
+ }
+ return ss.str();
+}
+