ZXHawk: Started tapedevice independence implementation

BizHawk.Emulation.Cores/Computers/SinclairSpectrum/Hardware/Datacorder/DatacorderDevice.cs

@@ -37,13 +37,20 @@ namespace BizHawk.Emulation.Cores.Computers.SinclairSpectrum
         {
             _machine = machine;
             _cpu = _machine.CPU;
-            _buzzer = machine.BuzzerDevice;
+            _buzzer = machine.TapeBuzzer;
         }
 
+
+
         #endregion
 
         #region State Information
 
+        /// <summary>
+        /// Internal counter used to trigger tape buzzer output
+        /// </summary>
+        private int counter = 0;
+
         /// <summary>
         /// The index of the current tape data block that is loaded
         /// </summary>
@@ -146,6 +153,8 @@ namespace BizHawk.Emulation.Cores.Computers.SinclairSpectrum
         {
             //if (TapeIsPlaying && AutoPlay)
             //FlashLoad();
+
+            _buzzer.ProcessPulseValue(true, currentState);
         }
 
         #endregion
@@ -160,7 +169,7 @@ namespace BizHawk.Emulation.Cores.Computers.SinclairSpectrum
             if (_tapeIsPlaying)
                 return;
 
-            _machine.BuzzerDevice.SetTapeMode(true);
+            _buzzer.SetTapeMode(true);
 
             _machine.Spectrum.OSD_TapePlaying();
 
@@ -215,7 +224,7 @@ namespace BizHawk.Emulation.Cores.Computers.SinclairSpectrum
             if (!_tapeIsPlaying)
                 return;
 
-            _machine.BuzzerDevice.SetTapeMode(false);
+            _buzzer.SetTapeMode(false);
 
             _machine.Spectrum.OSD_TapeStopped();
 
@@ -377,6 +386,27 @@ namespace BizHawk.Emulation.Cores.Computers.SinclairSpectrum
 
         #region Tape Device Methods
 
+
+        
+
+        /// <summary>
+        /// Runs every frame
+        /// </summary>
+        public void TapeCycle()
+        {            
+            if (TapeIsPlaying)
+            {
+                counter++;
+
+                if (counter > 50)
+                {
+                    counter = 0;
+                    bool state = GetEarBit(_machine.CPU.TotalExecutedCycles);
+                    _buzzer.ProcessPulseValue(false, state);
+                }
+            }
+        }
+        
         /// <summary>
         /// Simulates the spectrum 'EAR' input reading data from the tape
         /// </summary>
@@ -534,7 +564,7 @@ namespace BizHawk.Emulation.Cores.Computers.SinclairSpectrum
             _lastCycle = cpuCycle - (long)cycles;
 
             // play the buzzer
-            _buzzer.ProcessPulseValue(false, currentState);
+            //_buzzer.ProcessPulseValue(false, currentState);
 
             return currentState;
         }
@@ -898,6 +928,7 @@ namespace BizHawk.Emulation.Cores.Computers.SinclairSpectrum
         public void SyncState(Serializer ser)
         {
             ser.BeginSection("DatacorderDevice");
+            ser.Sync("counter", ref counter);
             ser.Sync("_currentDataBlockIndex", ref _currentDataBlockIndex);
             ser.Sync("_position", ref _position);
             ser.Sync("_tapeIsPlaying", ref _tapeIsPlaying);

BizHawk.Emulation.Cores/Computers/SinclairSpectrum/Machine/SpectrumBase.cs

@@ -39,6 +39,11 @@ namespace BizHawk.Emulation.Cores.Computers.SinclairSpectrum
         /// </summary>
         public IBeeperDevice BuzzerDevice { get; set; }
 
+        /// <summary>
+        /// A second beeper for the tape
+        /// </summary>
+        public IBeeperDevice TapeBuzzer { get; set; }
+
         /// <summary>
         /// Device representing the AY-3-8912 chip found in the 128k and up spectrums
         /// </summary>
@@ -142,6 +147,7 @@ namespace BizHawk.Emulation.Cores.Computers.SinclairSpectrum
             if (_renderSound)
             {
                 BuzzerDevice.StartFrame();
+                TapeBuzzer.StartFrame();
                 if (AYDevice != null)
                     AYDevice.StartFrame();
             }
@@ -155,6 +161,9 @@ namespace BizHawk.Emulation.Cores.Computers.SinclairSpectrum
 
                 // run a single CPU instruction
                 CPU.ExecuteOne();
+
+                // cycle the tape device
+                TapeDevice.TapeCycle();
             }
 
             // we have reached the end of a frame
@@ -165,7 +174,10 @@ namespace BizHawk.Emulation.Cores.Computers.SinclairSpectrum
                 ULADevice.UpdateScreenBuffer(ULADevice.FrameLength);
 
             if (_renderSound)
+            {
                 BuzzerDevice.EndFrame();
+                TapeBuzzer.EndFrame();
+            }
 
             if (AYDevice != null)
                 AYDevice.EndFrame();
@@ -329,6 +341,7 @@ namespace BizHawk.Emulation.Cores.Computers.SinclairSpectrum
             RomData.SyncState(ser);
             KeyboardDevice.SyncState(ser);
             BuzzerDevice.SyncState(ser);
+            TapeBuzzer.SyncState(ser);
             ULADevice.SyncState(ser);
 
             if (AYDevice != null)
@@ -337,7 +350,6 @@ namespace BizHawk.Emulation.Cores.Computers.SinclairSpectrum
                 ((AYChip)AYDevice as AYChip).PanningConfiguration = Spectrum.Settings.AYPanConfig;
             }
 
-
             ser.Sync("tapeMediaIndex", ref tapeMediaIndex);
             TapeMediaIndex = tapeMediaIndex;
 

BizHawk.Emulation.Cores/Computers/SinclairSpectrum/Machine/ZXSpectrum128K/ZX128.cs

@@ -31,6 +31,9 @@ namespace BizHawk.Emulation.Cores.Computers.SinclairSpectrum
             BuzzerDevice = new Buzzer(this);
             BuzzerDevice.Init(44100, ULADevice.FrameLength);
 
+            TapeBuzzer = new Buzzer(this);
+            TapeBuzzer.Init(44100, ULADevice.FrameLength);
+
             AYDevice = new AYChip(this);
             AYDevice.Init(44100, ULADevice.FrameLength);
 

BizHawk.Emulation.Cores/Computers/SinclairSpectrum/Machine/ZXSpectrum128KPlus2a/ZX128Plus2a.cs

@@ -31,6 +31,9 @@ namespace BizHawk.Emulation.Cores.Computers.SinclairSpectrum
             BuzzerDevice = new Buzzer(this);
             BuzzerDevice.Init(44100, ULADevice.FrameLength);
 
+            TapeBuzzer = new Buzzer(this);
+            TapeBuzzer.Init(44100, ULADevice.FrameLength);
+
             AYDevice = new AYChip(this);
             AYDevice.Init(44100, ULADevice.FrameLength);
 

BizHawk.Emulation.Cores/Computers/SinclairSpectrum/Machine/ZXSpectrum128KPlus3/ZX128Plus3.cs

@@ -31,6 +31,9 @@ namespace BizHawk.Emulation.Cores.Computers.SinclairSpectrum
             BuzzerDevice = new Buzzer(this);
             BuzzerDevice.Init(44100, ULADevice.FrameLength);
 
+            TapeBuzzer = new Buzzer(this);
+            TapeBuzzer.Init(44100, ULADevice.FrameLength);
+
             AYDevice = new AYChip(this);
             AYDevice.Init(44100, ULADevice.FrameLength);
 

BizHawk.Emulation.Cores/Computers/SinclairSpectrum/Machine/ZXSpectrum48K/ZX48.cs

@@ -26,6 +26,9 @@ namespace BizHawk.Emulation.Cores.Computers.SinclairSpectrum
             BuzzerDevice = new Buzzer(this);
             BuzzerDevice.Init(44100, ULADevice.FrameLength);
 
+            TapeBuzzer = new Buzzer(this);
+            TapeBuzzer.Init(44100, ULADevice.FrameLength);
+
             KeyboardDevice = new StandardKeyboard(this);
 
             InitJoysticks(joysticks);

BizHawk.Emulation.Cores/Computers/SinclairSpectrum/ZXSpectrum.cs

@@ -101,6 +101,8 @@ namespace BizHawk.Emulation.Cores.Computers.SinclairSpectrum
             SoundMixer = new SoundProviderMixer((int)(32767 / 10), (ISoundProvider)_machine.BuzzerDevice);
             if (_machine.AYDevice != null)
                 SoundMixer.AddSource(_machine.AYDevice);
+            if (_machine.TapeBuzzer != null)
+                SoundMixer.AddSource((ISoundProvider)_machine.TapeBuzzer);
             //SoundMixer.Stereo = ((ZXSpectrumSettings)settings as ZXSpectrumSettings).StereoSound;
 
             if (_machine.AYDevice != null && _machine.AYDevice.GetType() == typeof(AYChip))
@@ -115,6 +117,12 @@ namespace BizHawk.Emulation.Cores.Computers.SinclairSpectrum
                 ((Buzzer)_machine.BuzzerDevice as Buzzer).EarVolume = ((ZXSpectrumSettings)settings as ZXSpectrumSettings).EarVolume;
             }
 
+            if (_machine.TapeBuzzer != null)
+            {
+                ((Buzzer)_machine.TapeBuzzer as Buzzer).TapeVolume = ((ZXSpectrumSettings)settings as ZXSpectrumSettings).TapeVolume;
+                //((Buzzer)_machine.TapeBuzzer as Buzzer).EarVolume = ((ZXSpectrumSettings)settings as ZXSpectrumSettings).EarVolume;
+            }
+
 
             ser.Register<ISoundProvider>(SoundMixer);