修复若干bug

module/radio/BackEnd/BackEnd_True.cpp

@@ -15,6 +15,7 @@
 #include <QAudioFormat>
 #include <QAudioOutput>
 #include <alsa/asoundlib.h>
+#include <algorithm>
 #include <vector>
 #define BUFFER_SIZE 512  // 缓冲区大小
 Device_UHD* ys_radio;
@@ -23,6 +24,14 @@ AM_Demod am_demod;
 snd_pcm_t *handle;
 int err;
 
+namespace {
+double clamp_to_axis_range(double value, renderive::Range range) {
+    const double lower = std::min(range.origin, range.target);
+    const double upper = std::max(range.origin, range.target);
+    return std::clamp(value, lower, upper);
+}
+}
+
 void Back_End::play(const QString& fileName){
 //    ys_radio->YsSetFreq(value);
 }
@@ -145,20 +154,27 @@ void Back_End::call_back_data_func(int channel, void *pData, int i_length)
 
         //Main_Widget::instance()->radio_widget->giv
 
-        std::vector<double> data(512);
-        for(int i = 0; i < 512; ++i){
-            data[i] = rbuf[i];
-        }
-
         auto main = Main_Widget::instance();
         auto radio = main->radio_widget;
 
-        //qDebug() << data;
-        radio->audio_spectrogram_plot->give_data(data);
+        if (radio && radio->audio_spectrogram_plot) {
+            std::vector<double> data(512);
+            auto axis = radio->audio_spectrogram_plot->power_axis();
+            const auto range = axis ? axis->coord_range() : renderive::Range{-32768.0, 32767.0};
+            for(int i = 0; i < 512; ++i){
+                data[i] = clamp_to_axis_range(rbuf[i], range);
+            }
+            //qDebug() << data;
+            radio->audio_spectrogram_plot->give_data(data);
+        }
 
         //std::cout <<  "audio == " << rbuf[256] << std::endl;
 
-        radio->time_power->give_data(QTime::currentTime(), rbuf[256]);
+        if (radio && radio->time_power) {
+            auto axis = radio->time_power->value_axis();
+            const auto range = axis ? axis->coord_range() : renderive::Range{-32768.0, 32767.0};
+            radio->time_power->give_data(QTime::currentTime(), clamp_to_axis_range(rbuf[256], range));
+        }
 
 
         // 保存音频流

module/radio/BackEnd/RadioWidget.cpp

@@ -29,6 +29,15 @@ static void configure_radio_plot_perf(renderive::Latency_Eager_Plot* plot) {
         return;
     plot->set_max_render_fps(1000);
 }
+static renderive::Performance_Shower_Options radio_performance_options() {
+    renderive::Performance_Shower_Options options;
+    options.font.size = 11.0;
+    options.background = renderive::Color{20, 20, 20, 255};
+    options.foreground = renderive::Color::white();
+    options.scroll_track = renderive::Color{55, 55, 55, 220};
+    options.scroll_thumb = renderive::Color{190, 190, 190, 240};
+    return options;
+}
 static void apply_radio_performance_overlay(renderive::Latency_Eager_Plot* plot) {
     static bool logged = false;
     const bool enabled = radio_show_performance_overlay();
@@ -38,7 +47,12 @@ static void apply_radio_performance_overlay(renderive::Latency_Eager_Plot* plot)
     }
     if (!plot || !plot->core())
         return;
-    renderive::set_performance_shower_enabled(*plot->core(), enabled);
+    auto shower = renderive::attach_performance_shower(*plot->core(), radio_performance_options());
+    if (!shower)
+        return;
+    shower->setEnabled(enabled);
+    if (enabled)
+        renderive::notify_performance_shower_viewport_changed(*plot->core());
 }
 struct Radio_Plot_Layout {
     int left_axis_width{};