From 18ccab0e26a692073c2cd7d3c13d0c289b8f748f Mon Sep 17 00:00:00 2001
From: John Glover <j@johnglover.net>
Date: Thu, 23 Aug 2012 17:57:56 +0100
Subject: [loris] Add C++ implementation of LorisSynthesis.

---
 src/simpl/synthesis.cpp | 53 ++++++++++++++++++++++++++++++++++++++++++++++++-
 src/simpl/synthesis.h   | 23 +++++++++++++++++++++
 2 files changed, 75 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/simpl/synthesis.cpp b/src/simpl/synthesis.cpp
index 25312cc..5784522 100644
--- a/src/simpl/synthesis.cpp
+++ b/src/simpl/synthesis.cpp
@@ -254,7 +254,58 @@ void SndObjSynthesis::synth_frame(Frame* frame) {
 
     _synth->DoProcess();
 
-    for(int i = 0; i < _hop_size; i++) {
+    for(int i = 0; i < _frame_size; i++) {
         frame->synth()[i] = _synth->Output(i);
     }
 }
+
+
+// ---------------------------------------------------------------------------
+// LorisSynthesis
+// ---------------------------------------------------------------------------
+LorisSynthesis::LorisSynthesis() {
+    _bandwidth = 1.0;
+    reset();
+}
+
+LorisSynthesis::~LorisSynthesis() {
+}
+
+void LorisSynthesis::reset() {
+    _oscs.clear();
+    _oscs.resize(_max_partials);
+    for(int i = 0; i < _max_partials; i++) {
+        _oscs.push_back(Loris::Oscillator());
+    }
+}
+
+void LorisSynthesis::max_partials(int new_max_partials) {
+    _max_partials = new_max_partials;
+    reset();
+}
+
+sample LorisSynthesis::bandwidth() {
+    return _bandwidth;
+}
+
+void LorisSynthesis::bandwidth(sample new_bandwidth) {
+    _bandwidth = new_bandwidth;
+}
+
+void LorisSynthesis::synth_frame(Frame* frame) {
+    int num_partials = frame->num_partials();
+    if(num_partials > _max_partials) {
+        num_partials = _max_partials;
+    }
+
+    for(int i = 0; i < num_partials; i++) {
+        Loris::Breakpoint bp = Loris::Breakpoint(
+            frame->partial(i)->frequency,
+            frame->partial(i)->amplitude,
+            frame->partial(i)->bandwidth * _bandwidth,
+            frame->partial(i)->phase
+        );
+        _oscs[i].oscillate(frame->synth(), frame->synth() + _hop_size,
+                           bp, _sampling_rate);
+    }
+}
diff --git a/src/simpl/synthesis.h b/src/simpl/synthesis.h
index 456b4e4..e93669f 100644
--- a/src/simpl/synthesis.h
+++ b/src/simpl/synthesis.h
@@ -12,6 +12,9 @@ extern "C" {
 #include "SinAnal.h"
 #include "AdSyn.h"
 
+#include "Breakpoint.h"
+#include "Oscillator.h"
+
 using namespace std;
 
 namespace simpl
@@ -92,11 +95,31 @@ class SndObjSynthesis : public Synthesis {
     public:
         SndObjSynthesis();
         ~SndObjSynthesis();
+        void frame_size(int new_frame_size);
         void hop_size(int new_hop_size);
         void max_partials(int new_max_partials);
         void synth_frame(Frame* frame);
 };
 
+
+// ---------------------------------------------------------------------------
+// LorisSynthesis
+// ---------------------------------------------------------------------------
+class LorisSynthesis : public Synthesis {
+    private:
+        std::vector<Loris::Oscillator> _oscs;
+        sample _bandwidth;
+        void reset();
+
+    public:
+        LorisSynthesis();
+        ~LorisSynthesis();
+        void max_partials(int new_max_partials);
+        sample bandwidth();
+        void bandwidth(sample new_bandwidth);
+        void synth_frame(Frame* frame);
+};
+
 } // end of namespace Simpl
 
 #endif
-- 
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