Code clean up + added inter module communication

core/src/core.cpp

@@ -40,6 +40,7 @@ namespace core {
     ConfigManager configManager;
     ScriptManager scriptManager;
     ModuleManager moduleManager;
+    ModuleComManager modComManager;
 
     void setInputSampleRate(double samplerate) {
         // NOTE: Zoom controls won't work

core/src/core.h

@@ -3,11 +3,13 @@
 #include <module.h>
 #include <scripting.h>
 #include <module.h>
+#include <module_com.h>
 
 namespace core {
     SDRPP_EXPORT ConfigManager configManager;
     SDRPP_EXPORT ScriptManager scriptManager;
     SDRPP_EXPORT ModuleManager moduleManager;
+    SDRPP_EXPORT ModuleComManager modComManager;
 
     void setInputSampleRate(double samplerate);
 };

core/src/module_com.cpp

@@ -0,0 +1,51 @@
+#include <module_com.h>
+
+bool ModuleComManager::registerInterface(std::string moduleName, std::string name, void (*handler)(int code, void* in, void* out, void* ctx), void* ctx) {
+    std::lock_guard<std::mutex> lck(mtx);
+    if (interfaces.find(name) != interfaces.end()) {
+        spdlog::error("Tried creating module interface with an existing name: {0}", name);
+        return false;
+    }
+    ModuleComInterface iface;
+    iface.moduleName = moduleName;
+    iface.handler = handler;
+    iface.ctx = ctx;
+    interfaces[name] = iface;
+    return true;
+}
+
+bool ModuleComManager::unregisterInterface(std::string name) {
+    std::lock_guard<std::mutex> lck(mtx);
+    if (interfaces.find(name) == interfaces.end()) {
+        spdlog::error("Tried to erase module interface with unknown name: {0}", name);
+        return false;
+    }
+    interfaces.erase(name);
+    return true;
+}
+
+bool ModuleComManager::interfaceExists(std::string name) {
+    std::lock_guard<std::mutex> lck(mtx);
+    if (interfaces.find(name) == interfaces.end()) { return false; }
+    return true;
+}
+
+std::string ModuleComManager::getModuleName(std::string name) {
+    std::lock_guard<std::mutex> lck(mtx);
+    if (interfaces.find(name) == interfaces.end()) {
+        spdlog::error("Tried to call unknown module interface: {0}", name);
+        return "";
+    }
+    return interfaces[name].moduleName;
+}
+
+bool ModuleComManager::callInterface(std::string name, int code, void* in, void* out) {
+    std::lock_guard<std::mutex> lck(mtx);
+    if (interfaces.find(name) == interfaces.end()) {
+        spdlog::error("Tried to call unknown module interface: {0}", name);
+        return false;
+    }
+    ModuleComInterface iface = interfaces[name];
+    iface.handler(code, in, out, iface.ctx);
+    return true;
+}

core/src/module_com.h

@@ -0,0 +1,24 @@
+#pragma once
+#include <map>
+#include <string>
+#include <mutex>
+#include <spdlog/spdlog.h>
+
+struct ModuleComInterface {
+    std::string moduleName;
+    void* ctx;
+    void (*handler)(int code, void* in, void* out, void* ctx);
+};
+
+class ModuleComManager {
+public:
+    bool registerInterface(std::string moduleName, std::string name, void (*handler)(int code, void* in, void* out, void* ctx), void* ctx);
+    bool unregisterInterface(std::string name);
+    bool interfaceExists(std::string name);
+    std::string getModuleName(std::string name);
+    bool callInterface(std::string name, int code, void* in, void* out);
+
+private:
+    std::mutex mtx;
+    std::map<std::string, ModuleComInterface> interfaces;
+};

discord_integration/CMakeLists.txt

@@ -12,7 +12,7 @@ endif ()
 add_subdirectory("discord-rpc")
 
 file(GLOB SRC "src/*.cpp")
-include_directories("src/" "discord-rpc/include")
+include_directories("src/" "discord-rpc/include" "../radio/src/")
 
 add_library(discord_integration SHARED ${SRC})
 target_link_libraries(discord_integration PUBLIC sdrpp_core discord-rpc)

discord_integration/src/main.cpp

@@ -6,29 +6,24 @@
 #include <core.h>
 #include <discord_rpc.h>
 #include <thread>
+#include <radio_interface.h>
 
 SDRPP_MOD_INFO {
     /* Name:            */ "discord_integration",
     /* Description:     */ "Discord Rich Presence module for SDR++",
-    /* Author:          */ "Starman0620 & Ryzerth",
+    /* Author:          */ "Starman0620;Ryzerth",
     /* Version:         */ 0, 0, 2,
     /* Max instances    */ 1
 };
 
-DiscordRichPresence presence;
-uint64_t lastFreq;
-char* freq = new char[24];
-
-// Threading
-int workerCounter = 0;
-std::thread workerThread;
-bool workerRunning;
+#define DISCORD_APP_ID      "834590435708108860"
 
 class PresenceModule : public ModuleManager::Instance {
 public:
     PresenceModule(std::string name) {
         this->name = name;
 
+        // Change to timer start later on
         workerRunning = true;
         workerThread = std::thread(&PresenceModule::worker, this);
 
@@ -36,17 +31,23 @@ public:
     }
 
     ~PresenceModule() {
+        // Change to timer stop later on
         workerRunning = false;
         if (workerThread.joinable()) { workerThread.join(); }
     }
 
     void enable() {
+        // Change to timer start later on
         workerRunning = true;
+        workerThread = std::thread(&PresenceModule::worker, this);
         enabled = true;
     }
 
     void disable() {
+        // Change to timer stop later on
         workerRunning = false;
+        if (workerThread.joinable()) { workerThread.join(); }
+
         enabled = false;
         Discord_ClearPresence();
     }
@@ -59,6 +60,8 @@ private:
 
     // Main thread
     void worker() {
+        // TODO: Switch out for condition variable to terminate thread instantly
+        // OR even better, the new timer class that I still need to add
         while (workerRunning) {
             workerCounter++;
             if(workerCounter >= 1000) {
@@ -69,36 +72,78 @@ private:
         }
     }
 
-    static void updatePresence() {
-        if (gui::freqSelect.frequency != lastFreq) {
-            presence.details = "Listening"; // This really doesn't need to be re-set each time but it'll remain since it will be used once proper status can be displayed
-            sprintf(freq, "%.2fMHz", (float)gui::freqSelect.frequency/1000000);
+    void updatePresence() {
+        double selectedFreq = gui::freqSelect.frequency;
+        std::string selectedName = gui::waterfall.selectedVFO;
+        if (selectedFreq != lastFreq) {
+            lastFreq = selectedFreq;
+
+            strcpy(mode, "Raw");
+
+            if (core::modComManager.interfaceExists(selectedName)) {
+                if (core::modComManager.getModuleName(selectedName) == "radio") {
+                    int modeNum;
+                    core::modComManager.callInterface(selectedName, RADIO_IFACE_CMD_GET_MODE, NULL, &modeNum);
+                    if (modeNum == RADIO_IFACE_MODE_NFM) { strcpy(mode, "NFM"); }
+                    else if (modeNum == RADIO_IFACE_MODE_WFM) { strcpy(mode, "FM"); }
+                    else if (modeNum == RADIO_IFACE_MODE_AM) { strcpy(mode, "AM"); }
+                    else if (modeNum == RADIO_IFACE_MODE_DSB) { strcpy(mode, "DSB"); }
+                    else if (modeNum == RADIO_IFACE_MODE_USB) { strcpy(mode, "USB"); }
+                    else if (modeNum == RADIO_IFACE_MODE_CW) { strcpy(mode, "CW"); }
+                    else if (modeNum == RADIO_IFACE_MODE_LSB) { strcpy(mode, "LSB"); }
+                }
+            }
+
+            // Print out frequency to buffer
+            if (selectedFreq >= 1000000.0) {
+                sprintf(freq, "%.3lfMHz %s", selectedFreq / 1000000.0, mode);
+            }
+            else if (selectedFreq >= 1000.0) {
+                sprintf(freq, "%.3lfKHz %s", selectedFreq / 1000.0, mode);
+            }
+            else {
+                sprintf(freq, "%.3lfHz %s", selectedFreq, mode);
+            }
+
+            // Fill in the rest of the details and send to discord
+            presence.details = "Listening to";
             presence.state = freq;
             Discord_UpdatePresence(&presence);
-            lastFreq = gui::freqSelect.frequency;
         }
     }
 
-    static void startPresence() {
+    void startPresence() {
         // Discord initialization
         DiscordEventHandlers handlers;
         memset(&handlers, 0, sizeof(handlers));
         memset(&presence, 0, sizeof(presence));
-        Discord_Initialize("833485588954742864", &handlers, 1, "");
+        Discord_Initialize(DISCORD_APP_ID, &handlers, 1, "");
 
         // Set the first presence
         presence.details = "Initializing rich presence...";
         presence.startTimestamp = time(0);
-        presence.largeImageKey = "image_large";
+        presence.largeImageKey = "sdrpp_large";
         Discord_UpdatePresence(&presence);
     }
 
     std::string name;
     bool enabled = true;
+
+    // Rich Presence
+    DiscordRichPresence presence;
+    double lastFreq;
+    char* freq = new char[1024];
+    char* mode = new char[1024];
+
+    // Threading
+    int workerCounter = 0;
+    std::thread workerThread;
+    bool workerRunning;
+
 };
 
 MOD_EXPORT void _INIT_() {
-
+    // Nothing here
 }
 
 MOD_EXPORT ModuleManager::Instance* _CREATE_INSTANCE_(std::string name) {
@@ -110,5 +155,5 @@ MOD_EXPORT void _DELETE_INSTANCE_(void* instance) {
 }
 
 MOD_EXPORT void _END_() {
-
+    // Nothing here
 }

radio/src/main.cpp

@@ -15,6 +15,7 @@
 #include <raw_demod.h>
 #include <cw_demod.h>
 #include <options.h>
+#include <radio_interface.h>
 
 #define CONCAT(a, b)    ((std::string(a) + b).c_str())
 
@@ -63,6 +64,8 @@ public:
         stream.start();
 
         gui::menu.registerEntry(name, menuHandler, this, this);
+
+        core::modComManager.registerInterface("radio", name, moduleInterfaceHandler, this);
     }
 
     ~RadioModule() {
@@ -155,6 +158,13 @@ private:
         }
     }
 
+    static void moduleInterfaceHandler(int code, void* in, void* out, void* ctx) {
+        RadioModule* _this = (RadioModule*)ctx;
+        if (code == RADIO_IFACE_CMD_GET_MODE) {
+            *(int*)out = _this->demodId;
+        }
+    }
+
     void selectDemod(Demodulator* demod) {
         if (currentDemod != NULL) { currentDemod->stop(); }
         currentDemod = demod;

radio/src/radio_interface.h

@@ -0,0 +1,16 @@
+#pragma once
+
+enum {
+    RADIO_IFACE_CMD_GET_MODE
+};
+
+enum {
+    RADIO_IFACE_MODE_NFM,
+    RADIO_IFACE_MODE_WFM,
+    RADIO_IFACE_MODE_AM,
+    RADIO_IFACE_MODE_DSB,
+    RADIO_IFACE_MODE_USB,
+    RADIO_IFACE_MODE_CW,
+    RADIO_IFACE_MODE_LSB,
+    RADIO_IFACE_MODE_RAW
+};