From: c vw <dl1ycf@darc.de>
Date: Mon, 19 Oct 2020 17:50:19 +0000 (+0200)
Subject: Calculate AGC panadapter lines upon radio start, and whenever
X-Git-Url: https://git.rkrishnan.org/simplejson/htmlfontify-example.html?a=commitdiff_plain;h=a8b6883b4bda95c4e18ff20d886cb99d1f1fdcb8;p=pihpsdr.git

Calculate AGC panadapter lines upon radio start, and whenever
they may change (changing sample rate or Hang threshold)
---

diff --git a/dsp_menu.c b/dsp_menu.c
index c02b631..ca03670 100644
--- a/dsp_menu.c
+++ b/dsp_menu.c
@@ -60,6 +60,10 @@ static void agc_hang_threshold_value_changed_cb(GtkWidget *widget, gpointer data
   active_receiver->agc_hang_threshold=(int)gtk_range_get_value(GTK_RANGE(widget));
   if(active_receiver->agc==AGC_LONG || active_receiver->agc==AGC_SLOW) {
     SetRXAAGCHangThreshold(active_receiver->id, (int)active_receiver->agc_hang_threshold);
+    //
+    // recalculate position of hang line for panadapter
+    //
+    GetRXAAGCHangLevel(active_receiver->id, &active_receiver->agc_hang);
   }
 }
 
diff --git a/receiver.c b/receiver.c
index 3fd94e4..ee485bf 100644
--- a/receiver.c
+++ b/receiver.c
@@ -716,6 +716,13 @@ void set_agc(RECEIVER *rx, int agc) {
       SetRXAAGCHangThreshold(rx->id,100);
       break;
   }
+  //
+  // Determine the "panadapter" AGC line positions. These are re-calculated
+  // the first time the AGC slider is moved, but we need correct values 
+  // until then.
+  // 
+  GetRXAAGCHangLevel(rx->id, &rx->agc_hang);
+  GetRXAAGCThresh(rx->id, &rx->agc_thresh, 4096.0, (double)rx->sample_rate);
 }
 
 void set_offset(RECEIVER *rx,long long offset) {
@@ -1203,6 +1210,10 @@ g_print("receiver_change_sample_rate: id=%d rate=%d scale=%d buffer_size=%d outp
     return;
   }
 #endif
+  //
+  // re-calculate AGC line for panadapter since it depends on sample rate
+  //
+  GetRXAAGCThresh(rx->id, &rx->agc_thresh, 4096.0, (double)rx->sample_rate);
   if (rx->audio_output_buffer != NULL) {
     g_free(rx->audio_output_buffer);
   }