Decode status widget (#1431)

* Initial cleanup of pocsag beta, using DSP filters

* Better filter params

* Better filter

* Add signal diagnostics widgets

* POCSAG procs sends stats messages

* Only draw 32 bits

* Add AudioNormalizer filter

firmware/application/apps/pocsag_app.cpp

@@ -105,6 +105,8 @@ POCSAGAppView::POCSAGAppView(NavigationView& nav)
          &field_volume,
          &image_status,
          &text_packet_count,
+         &widget_bits,
+         &widget_frames,
          &button_ignore_last,
          &button_config,
          &console});
@@ -271,7 +273,31 @@ void POCSAGAppView::on_packet(const POCSAGPacketMessage* message) {
     image_status.set_foreground(get_status_color(pocsag_state));
 }
 
-void POCSAGAppView::on_stats(const POCSAGStatsMessage*) {
+void POCSAGAppView::on_stats(const POCSAGStatsMessage* stats) {
+    widget_bits.set_bits(stats->current_bits);
+    widget_frames.set_frames(stats->current_frames);
+    widget_frames.set_sync(stats->has_sync);
+}
+
+void BitsIndicator::paint(Painter&) {
+    auto p = screen_pos();
+    for (size_t i = 0; i < sizeof(bits_) * 8; ++i) {
+        auto is_set = ((bits_ >> i) & 0x1) == 1;
+
+        int x = p.x() + (i / height);
+        int y = p.y() + (i % height);
+        display.draw_pixel({x, y}, is_set ? Color::white() : Color::black());
+    }
+}
+
+void FrameIndicator::paint(Painter& painter) {
+    auto p = screen_pos();
+    painter.draw_rectangle({p, {2, height}}, has_sync_ ? Color::green() : Color::grey());
+
+    for (size_t i = 0; i < height; ++i) {
+        auto p2 = p + Point{2, 16 - (int)i};
+        painter.draw_hline(p2, 2, i < frame_count_ ? Color::white() : Color::black());
+    }
 }
 
 } /* namespace ui */

firmware/application/apps/pocsag_app.hpp

@@ -52,6 +52,50 @@ class POCSAGLogger {
 
 namespace ui {
 
+class BitsIndicator : public Widget {
+   public:
+    BitsIndicator(Point position)
+        : Widget{{position, {2, height}}} {}
+
+    void paint(Painter& painter) override;
+    void set_bits(uint32_t bits) {
+        if (bits != bits_) {
+            bits_ = bits;
+            set_dirty();
+        }
+    }
+
+   private:
+    static constexpr uint8_t height = 16;
+    uint32_t bits_ = 0;
+};
+
+class FrameIndicator : public Widget {
+   public:
+    FrameIndicator(Point position)
+        : Widget{{position, {4, height}}} {}
+
+    void paint(Painter& painter) override;
+    void set_frames(uint8_t frame_count) {
+        if (frame_count != frame_count_) {
+            frame_count_ = frame_count;
+            set_dirty();
+        }
+    }
+
+    void set_sync(bool has_sync) {
+        if (has_sync != has_sync_) {
+            has_sync_ = has_sync;
+            set_dirty();
+        }
+    }
+
+   private:
+    static constexpr uint8_t height = 16;
+    uint8_t frame_count_ = 0;
+    bool has_sync_ = false;
+};
+
 struct POCSAGSettings {
     bool enable_small_font = false;
     bool enable_logging = false;
@@ -187,7 +231,8 @@ class POCSAGAppView : public View {
         2,
         {0, 99},
         1,
-        ' '};
+        ' ',
+        true /*wrap*/};
     AudioVolumeField field_volume{
         {28 * 8, 0 * 16}};
 
@@ -201,6 +246,12 @@ class POCSAGAppView : public View {
         {3 * 8, 1 * 16 + 2, 5 * 8, 16},
         "0"};
 
+    BitsIndicator widget_bits{
+        {9 * 7 + 6, 1 * 16 + 2}};
+
+    FrameIndicator widget_frames{
+        {9 * 8, 1 * 16 + 2}};
+
     Button button_ignore_last{
         {10 * 8, 1 * 16, 12 * 8, 20},
         "Ignore Last"};