diff src/Silvet.cpp @ 33:e08c330a761d

Drop the latency columns from the CQ start

--- a/src/Silvet.cpp	Fri Apr 04 13:29:33 2014 +0100
+++ b/src/Silvet.cpp	Fri Apr 04 13:43:51 2014 +0100
@@ -300,8 +300,18 @@
 
     Grid out;
 
+    //!!! nb we count the CQ latency in terms of processing hops, but
+    //!!! actually it isn't guaranteed to be an exact number (in fact
+    //!!! it probably isn't) so this is imprecise -- fix
+    int latentColumns = m_cq->getLatency() / m_cq->getColumnHop();
+
     for (int i = 0; i < width; ++i) {
 
+        if (m_columnCount < latentColumns) {
+            ++m_columnCount;
+            continue;
+        }
+
         int prevSampleNo = (m_columnCount - 1) * m_cq->getColumnHop();
         int sampleNo = m_columnCount * m_cq->getColumnHop();
 
@@ -321,6 +331,8 @@
 
                 int ix = inCol.size() - j - 55;
 
+                //!!! note these filters introduce more latency
+
                 double val = inCol[ix];
                 m_filterA[j]->push(val);