fan param

src/hud_elements.cpp

@@ -925,6 +925,19 @@ void HudElements::framecount(){
     }
 }
 
+void HudElements::fan(){
+    if (HUDElements.params->enabled[OVERLAY_PARAM_ENABLED_fan] && fan_speed != -1) {
+        ImGui::TableNextRow(); ImGui::TableNextColumn();
+        ImGui::TextColored(HUDElements.colors.engine, "%s", "FAN");
+        ImGui::TableNextColumn();
+        right_aligned_text(HUDElements.colors.text,HUDElements.ralign_width, "%i", fan_speed);
+        ImGui::SameLine(0, 1.0f);
+        ImGui::PushFont(HUDElements.sw_stats->font1);
+        ImGui::Text("RPM");
+        ImGui::PopFont();
+    }
+}
+
 void HudElements::graphs(){
     ImGui::TableNextRow(); ImGui::TableNextColumn();
     ImGui::Dummy(ImVec2(0.0f, real_font_size.y));
@@ -1080,6 +1093,7 @@ void HudElements::sort_elements(const std::pair<std::string, std::string>& optio
     if (param == "debug")           { ordered_functions.push_back({gamescope_frame_timing, value}); }
     if (param == "gamepad_battery") { ordered_functions.push_back({gamepad_battery, value});        }
     if (param == "framecount")      { ordered_functions.push_back({framecount, value});             }
+    if (param == "fan")             { ordered_functions.push_back({gamescope_fsr, value});          }
     if (param == "graphs"){
         if (!HUDElements.params->enabled[OVERLAY_PARAM_ENABLED_graphs])
             HUDElements.params->enabled[OVERLAY_PARAM_ENABLED_graphs] = true;
@@ -1110,6 +1124,7 @@ void HudElements::legacy_elements(){
     ordered_functions.push_back({vram,               value});
     ordered_functions.push_back({ram,                value});
     ordered_functions.push_back({battery,            value});
+    ordered_functions.push_back({fan,                value});
     ordered_functions.push_back({gamescope_fsr,      value});
     ordered_functions.push_back({fps,                value});
     ordered_functions.push_back({fps_only,           value});

src/hud_elements.h

@@ -63,6 +63,7 @@ class HudElements{
         static void gamescope_frame_timing();
         static void gamepad_battery();
         static void framecount();
+        static void fan();
 
         void convert_colors(const struct overlay_params& params);
         void convert_colors(bool do_conv, const struct overlay_params& params);

src/overlay.cpp

@@ -47,6 +47,7 @@ double min_frametime, max_frametime;
 bool gpu_metrics_exists = false;
 bool steam_focused = false;
 vector<float> frametime_data(200,0.f);
+int fan_speed;
 
 void init_spdlog()
 {
@@ -86,6 +87,7 @@ void FpsLimiter(struct fps_limit& stats){
 
 void update_hw_info(const struct overlay_params& params, uint32_t vendorID)
 {
+   update_fan();
    if (params.enabled[OVERLAY_PARAM_ENABLED_cpu_stats] || logger->is_active()) {
       cpuStats.UpdateCPUData();
 
@@ -824,3 +826,11 @@ std::string get_device_name(int32_t vendorID, int32_t deviceID)
 #endif
    return desc;
 }
+
+void update_fan(){
+   // This just handles steam deck fan for now
+   if (read_line("/sys/class/hwmon/hwmon8/name").find("jupiter") != string::npos)
+      fan_speed = stoi(read_line("/sys/class/hwmon/hwmon8/fan1_input"));
+   else
+      fan_speed = -1;
+}

src/overlay.h

@@ -149,6 +149,7 @@ extern std::deque<logData> graph_data;
 extern overlay_params *_params;
 extern double min_frametime, max_frametime;
 extern bool steam_focused;
+extern int fan_speed;
 
 void init_spdlog();
 void position_layer(struct swapchain_stats& data, const struct overlay_params& params, const ImVec2& window_size);
@@ -173,6 +174,7 @@ extern void process_control_socket(struct instance_data *instance_data);
 #ifdef HAVE_DBUS
 void render_mpris_metadata(const overlay_params& params, mutexed_metadata& meta, uint64_t frame_timing);
 #endif
+void update_fan();
 #endif //MANGOAPP_LAYER
 
 #endif //MANGOHUD_OVERLAY_H

src/overlay_params.h

@@ -81,6 +81,7 @@ typedef unsigned long KeySym;
    OVERLAY_PARAM_BOOL(gamepad_battery)               \
    OVERLAY_PARAM_BOOL(gamepad_battery_icon)          \
    OVERLAY_PARAM_BOOL(hide_fsr_sharpness)            \
+   OVERLAY_PARAM_BOOL(fan)                           \
    OVERLAY_PARAM_CUSTOM(fps_sampling_period)         \
    OVERLAY_PARAM_CUSTOM(output_folder)               \
    OVERLAY_PARAM_CUSTOM(output_file)                 \