System usage

Desktop_Test/example_programs.h

@@ -1,3 +1,4 @@
+#include "esp32-hal.h"
 #pragma once
 #include "program.h"
 #include "shell.h"
@@ -17,6 +18,7 @@ public:
 
     text.x = _window->x + 10;
     text.y = _window->y + 50;
+    text.size = 2;
 
     _window->window_content_text.push_back(text);
     
@@ -90,9 +92,87 @@ public:
   void run() override {
     Serial.println("Settings started!");
 
+    WindowContentText ram_usage;
+    WindowContentText ram_usage_label;
+    WindowContentText cpu_usage;
+    WindowContentText cpu_usage_label;
+
+    ram_usage_label.size = 2;
+    ram_usage_label.text = "RAM usage";
+    ram_usage_label.x = _window->x + 10;
+    ram_usage_label.y = _window->y + 50;
+
+    ram_usage.size = 2;
+    ram_usage.x = _window->x + 10;
+    ram_usage.y = _window->y + 70;
+
+    cpu_usage_label.size = 2;
+    cpu_usage_label.text = "CPU usage:";
+    cpu_usage_label.x = _window->x + 10;
+    cpu_usage_label.y = _window->y + 90;
+
+    cpu_usage.size = 2;
+    cpu_usage.x = _window->x + 10;
+    cpu_usage.y = _window->y + 110;
+
+    _window->window_content_text.push_back(ram_usage_label);
+    _window->window_content_text.push_back(ram_usage);
+    _window->window_content_text.push_back(cpu_usage_label);
+    _window->window_content_text.push_back(cpu_usage);
+
+    // Variables for metrics
+    size_t total_ram;
+    size_t free_ram;
+    size_t used_ram;
+    float ram_percent;
+    float cpu_percent;
+    
+    // For CPU calculation
+    uint32_t idle_count_last = 0;
+    uint32_t idle_count_current = 0;
+    
+    uint counter = 0;
+
     while (_running) {
-      // Settings UI logic
-      vTaskDelay(pdMS_TO_TICKS(100));
+      counter++;
+
+      // RAM Calculation (Internal + PSRAM)
+      size_t internal_total = heap_caps_get_total_size(MALLOC_CAP_INTERNAL);
+      size_t internal_free = heap_caps_get_free_size(MALLOC_CAP_INTERNAL);
+      size_t psram_total = heap_caps_get_total_size(MALLOC_CAP_SPIRAM);
+      size_t psram_free = heap_caps_get_free_size(MALLOC_CAP_SPIRAM);
+      
+      total_ram = internal_total + psram_total;
+      free_ram = internal_free + psram_free;
+      used_ram = total_ram - free_ram;
+      ram_percent = (float)used_ram / (float)total_ram * 100.0f;
+      
+      // CPU Usage - measure idle task iterations
+      idle_count_current = xTaskGetIdleRunTimeCounter();
+      
+      if (idle_count_last > 0) {
+        uint32_t idle_delta = idle_count_current - idle_count_last;
+        // The more idle iterations, the less CPU is used
+        // Scale based on your measurement interval (100ms)
+        // Tune the divisor based on your specific system
+        cpu_percent = 100.0f - (idle_delta / 10000.0f);
+        if (cpu_percent < 0) cpu_percent = 0;
+        if (cpu_percent > 100) cpu_percent = 100;
+      } else {
+        cpu_percent = 0.0f;
+      }
+      
+      idle_count_last = idle_count_current;
+
+      _window->window_content_text[1].text = std::to_string(used_ram);
+      _window->window_content_text[3].text = std::to_string(cpu_percent);
+
+      vTaskDelay(pdMS_TO_TICKS(5));
+
+      if (counter == 1000) {
+        _display_state->update_display.store(true);
+        counter = 0;
+      }
     }
   }
 };

Desktop_Test/program.h

@@ -49,6 +49,7 @@ struct WindowDecoration {
 struct WindowContentText {
   int x;
   int y;
+  int size;
   std::string text;
 };
 

Desktop_Test/shell.cpp

@@ -220,13 +220,13 @@ void Shell::draw_window(Window window) {
   }
 
   // Window title
-  tft->draw_text(window.x + 6 + 65, window.y + 10, window.title, COL_WHITE);
+  tft->draw_text(window.x + 6 + 65, window.y + 10, window.title, COL_WHITE, 2);
 
   // Window content
   tft->draw_box(window.x + 3, window.y + 35, window.width - 6, window.height - 38, COL_WHITE);
 
   for (WindowContentText text : window.window_content_text) {
-    tft->draw_text(text.x, text.y, text.text, COL_BLACK);
+    tft->draw_text(text.x, text.y, text.text, COL_BLACK, text.size);
   }
 }
 
@@ -265,14 +265,14 @@ void Shell::draw_task_bar(int color) {
       tft->draw_box(item.place_x, item.place_y, item.width + 2, item.height + 2, COL_WHITE);
       tft->draw_box(item.place_x, item.place_y, item.width, item.height, COL_GREY);
 
-      tft->draw_text(item.place_x + 2, item.place_y + 2, item.name, COL_BLACK);
+      tft->draw_text(item.place_x + 2, item.place_y + 2, item.name, COL_BLACK, 1);
     } else {
       tft->draw_box(item.place_x - 1, item.place_y - 1, item.width + 1, item.height + 1, COL_WHITE);
       tft->draw_box(item.place_x, item.place_y, item.width + 2, item.height + 2, COL_BLACK);
       tft->draw_rect(item.place_x, item.place_y, item.width + 1, item.height + 1, 1, COL_DARK_GREY);
       tft->draw_box(item.place_x, item.place_y, item.width, item.height, COL_GREY);
 
-      tft->draw_text(item.place_x + 2, item.place_y + 2, item.name, COL_BLACK);
+      tft->draw_text(item.place_x + 2, item.place_y + 2, item.name, COL_BLACK, 1);
     }
   }
 }

Desktop_Test/tft_handler.cpp

@@ -31,9 +31,9 @@ void TFT_Handler::draw_line(int x1, int y1, int x2, int y2, int color) {
   tft.drawLine(x1, y1, x2, y2, color);
 }
 
-void TFT_Handler::draw_text(int x, int y, std::string str, int color) {
+void TFT_Handler::draw_text(int x, int y, std::string str, int color, int size) {
   tft.setTextColor(color);
-  tft.setTextSize(1);
+  tft.setTextSize(size);
   tft.drawString(str.c_str(), x, y);
 }
 

Desktop_Test/tft_handler.h

@@ -62,7 +62,7 @@ public:
     void draw_box(int x, int y, int size_x, int size_y, int color);
     void draw_rect(int x, int y, int size_x, int size_y, int thickness, int color);
     void draw_line(int x1, int y1, int x2, int y2, int color);
-    void draw_text(int x, int y, std::string str, int color);
+    void draw_text(int x, int y, std::string str, int color, int size);
     void fill_screen(int color);
 
     void draw_box_sprite(int x, int y, int size_x, int size_y, int color);