* Swap out TDSR speech server with libspeak.

* Add a SpeechRate parameter in ModConfig.

stardew-access/ModConfig.cs

@@ -80,6 +80,7 @@ namespace stardew_access
         public Boolean Warning { get; set; } = true; // Toggles the warnings feature
         public Boolean TTS { get; set; } = true; // Toggles the screen reader/tts.
         public Boolean TrackDroppedItems {get; set;} = true; // Toggles detecting the dropped items.
+        public Single SpeechRate {get; set;} = 220; // Sets speech rate for the Mac TTS.
         #endregion
 
         // TODO Add the exclusion and focus list too

stardew-access/ScreenReader/ScreenReaderMac.cs

@@ -1,12 +1,120 @@
 using System;
 using System.Diagnostics;
 using System.IO;
+using System.Runtime.InteropServices;
+using System.Threading;
+using static System.Net.Mime.MediaTypeNames;
 
 namespace stardew_access.ScreenReader
 {
     public class ScreenReaderMac : IScreenReader
     {
-        private Process? _speakProcess;
+        // The speaker instance
+        private static IntPtr speaker;
+        //Stuff for the runloop thread
+        private CancellationTokenSource cts = new CancellationTokenSource();
+        private Thread rt;
+        //Speech queue for interrupt
+        private static Queue<string> speechQueue = new Queue<string>();
+        // DidFinishSpeaking callback for interrupt
+        dfs_callback fscb = new dfs_callback(DoneSpeaking);
+
+        // Dylib imports
+        ///////////
+        // Speaker
+        //
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern void init_speaker();
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern void speak(string text);
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern void set_voice(Int32 index);
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern UInt32 available_voices_count();
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern void set_language(Int32 index);
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern UInt32 available_languages_count();
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern void get_voice_name(UInt32 idx, String pszOut);
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern void set_volume(Single volume);
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern Single get_volume();
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+                private static extern void set_rate(Single rate);
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern Single get_rate();
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern void stop();
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern void cleanup_speaker();
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern void mainloop_speaker(IntPtr speaker);
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern Boolean is_speaking(IntPtr speaker);
+
+        ///////////////
+        // Speaker OO
+        //
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern IntPtr make_speaker();
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern void speak_with(IntPtr speaker, String text);
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern void set_voice_with(IntPtr speaker, Int32 index);
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern void set_volume_with(IntPtr speaker, Single volume);
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern Single get_volume_with(IntPtr speaker);
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern void set_rate_with(IntPtr speaker, Single rate);
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern Single get_rate_with(IntPtr speaker);
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern void stop_with(IntPtr speaker);
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern void cleanup_with(IntPtr speaker);
+
+        [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+        public delegate void wsw_callback(String p1);
+        [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+        public delegate void wsp_callback(Int16 p1);
+        [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+        public delegate void dfs_callback();
+
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern void register_will_speak_word_callback(IntPtr speaker, [MarshalAs(UnmanagedType.FunctionPtr)]wsw_callback cb);
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern void register_will_speak_phoneme_callback(IntPtr speaker, [MarshalAs(UnmanagedType.FunctionPtr)]wsp_callback cb);
+                [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern void register_did_finish_speaking_callback(IntPtr speaker, [MarshalAs(UnmanagedType.FunctionPtr)]dfs_callback cb);
+
+        /////////////////
+        // Recognizer OO
+        //
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern IntPtr make_listener();
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern void start_listening(IntPtr listener);
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern void stop_listening(IntPtr listener);
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern void add_command(IntPtr listener, String command);
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern void cleanup_listener(IntPtr listener);
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern void mainloop_listener(IntPtr listener);
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern Boolean is_listening(IntPtr listener);
+
+        [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+        public delegate void drc_callback(String p1);
+        [DllImport("libspeak", CallingConvention = CallingConvention.Cdecl)]
+        private static extern void register_did_recognize_command_callback(IntPtr listener, drc_callback cb);
+
+
+
 
 
         public string PrevTextTile
@@ -17,39 +125,55 @@ namespace stardew_access.ScreenReader
 
         public string prevText = "", prevTextTile = " ", prevChatText = "", prevMenuText = "";
 
-        public void InitializeScreenReader()
+        private static void SpeakLoop(object obj)
+        {
+            CancellationToken ct = (CancellationToken)obj;
+            
+            while (!ct.IsCancellationRequested)
+            {
+                mainloop_speaker(speaker);
+                Thread.Sleep(20);
+            }
+                    }
+
+            public void InitializeScreenReader()
         {
             MainClass.InfoLog("Screen reader initialized");
-            _speakProcess = new Process();
+            speaker = make_speaker();
-            _speakProcess.StartInfo.FileName = "mac";
+            rt = new Thread(new ParameterizedThreadStart(SpeakLoop));
-            _speakProcess.StartInfo.Verb = "mac";
+            rt.Start(cts.Token);
-            _speakProcess.StartInfo.RedirectStandardInput = true;
+            register_did_finish_speaking_callback(speaker, fscb);
-            _speakProcess.Start();
+						set_rate_with(speaker, MainClass.Config.SpeechRate);
-						// set rate (probably should be done through a config parameter)
+            Say("Mac screen reader ready", true);
-_speakProcess.StandardInput.WriteLine("r600");
+                    }
-            Speak("Mac screen reader ready", true);
-        }
 
         public void CloseScreenReader()
         {
-            MainClass.InfoLog("Screen reader closed");
+            cts.Cancel();
-            _speakProcess.Kill();
+            rt.Join();
+            cts.Dispose();
+            cleanup_with(speaker);
         }
 
         public void Say(string text, bool interrupt)
         {
             if (text == null) return;
-            MainClass.InfoLog($"{text}");
+            if (interrupt)
-            Speak(text, interrupt);
+            {
+                speechQueue.Clear();
+                speak_with(speaker,text);
+            } else {
+                speechQueue.Enqueue(text);
+                                    }
         }
 
         public void SayWithChecker(string text, bool interrupt)
         {
             if (text == null) return;
-            MainClass.InfoLog($"{text}");
             if (text != prevText)
             {
-                Speak(text, interrupt);
+            MainClass.InfoLog($"{text}");
+                Say(text, interrupt);
                 prevText = text;
             }
         }
@@ -57,10 +181,10 @@ _speakProcess.StandardInput.WriteLine("r600");
         public void SayWithMenuChecker(string text, bool interrupt)
         {
             if (text == null) return;
-            MainClass.InfoLog($"{text}");
             if (text != prevMenuText)
             {
-                Speak(text, interrupt);
+            MainClass.InfoLog($"{text}");
+                Say(text, interrupt);
                 prevMenuText = text;
             }
         }
@@ -68,10 +192,10 @@ _speakProcess.StandardInput.WriteLine("r600");
         public void SayWithChatChecker(string text, bool interrupt)
         {
             if (text == null) return;
-            MainClass.InfoLog($"{text}");
             if (text != prevChatText)
             {
-                Speak(text, interrupt);
+            MainClass.InfoLog($"{text}");
+                Say(text, interrupt);
                 prevChatText = text;
             }
         }
@@ -79,29 +203,21 @@ _speakProcess.StandardInput.WriteLine("r600");
         public void SayWithTileQuery(string text, int x, int y, bool interrupt)
         {
             if (text == null) return;
-            MainClass.InfoLog($"{text}");
             if (text != prevTextTile)
             {
-                Speak(text, interrupt);
+            MainClass.InfoLog($"{text}");
+                Say(text, interrupt);
                 prevTextTile = text;
+}
             }
 
-        }
+        private static void DoneSpeaking()
-
-        private void Speak(string text, bool interupt)
         {
-            if (_speakProcess.HasExited) {
+            if (speechQueue.Count != 0)
-                InitializeScreenReader();
-            }
-            if (interupt)
             {
-                _speakProcess.StandardInput.WriteLine("x");
+                speak_with(speaker, speechQueue.Dequeue());
-            }
-            var lines = text.Split("\n").ToArray();
-            foreach (var line in lines) {
-                            _speakProcess.StandardInput.WriteLine($"s{line}");
             }
+                    }
 
-        }
     }
 }