Highly experimental synth for zelda ucode.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@3629 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Plugins/Plugin_DSP_HLE/Src/UCodes/UCode_Zelda.h

@@ -174,6 +174,10 @@ private:
 	void MixAddVoice_PCM16(ZeldaVoicePB& PB, s32* _Buffer, int _Size);
 	void MixAddVoice_AFC(ZeldaVoicePB& PB, s32* _Buffer, int _Size);
 	void MixAddVoice(ZeldaVoicePB& PB, s32* _LeftBuffer, s32* _RightBuffer, int _Size);
+
+
+        void MixAddSynth_Constant(ZeldaVoicePB &PB, s32* _Buffer, int _Size);
+        void MixAddSynth_Waveform(ZeldaVoicePB &PB, s32* _Buffer, int _Size);
 };
 
 #endif

Source/Plugins/Plugin_DSP_HLE/Src/UCodes/UCode_Zelda_Synth.cpp

@@ -0,0 +1,46 @@
+// Copyright (C) 2003-2009 Dolphin Project.
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, version 2.0.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License 2.0 for more details.
+
+// A copy of the GPL 2.0 should have been included with the program.
+// If not, see http://www.gnu.org/licenses/
+
+// Official SVN repository and contact information can be found at
+// http://code.google.com/p/dolphin-emu/
+
+#include "../Globals.h"
+#include "UCodes.h"
+#include "UCode_Zelda.h"
+#include "UCode_Zelda_ADPCM.h"
+
+#include "../main.h"
+#include "Mixer.h"
+
+void CUCode_Zelda::MixAddSynth_Waveform(ZeldaVoicePB &PB, s32* _Buffer, int _Size)
+{
+	int mask = PB.Format ? 3 : 1;
+        
+	for (int i = 0; i < _Size; i++)
+	{
+		s16 sample = (i & mask) ? 0xc000 : 0x4000;
+
+		_Buffer[i++] = (s32)sample;
+	}
+}
+
+
+void CUCode_Zelda::MixAddSynth_Constant(ZeldaVoicePB &PB, s32* _Buffer, int _Size)
+{
+	for (int i = 0; i < _Size; i++)
+            _Buffer[i++] = (s32)PB.RatioInt;
+}
+
+
+

Source/Plugins/Plugin_DSP_HLE/Src/UCodes/UCode_Zelda_Voice.cpp

@@ -1,4 +1,4 @@
-// Copyright (C) 2003-2008 Dolphin Project.
+// Copyright (C) 2003-2009 Dolphin Project.
 
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -281,6 +281,22 @@ void CUCode_Zelda::MixAddVoice(ZeldaVoicePB &PB, s32* _LeftBuffer, s32* _RightBu
 	{
 		switch (PB.Format)
 		{
+
+		// Synthesized sounds
+		case 0x0000:
+		case 0x0001:        // Used for "Denied" sound in Zelda
+                    //MixAddSynth_Waveform(PB, m_TempBuffer, _Size);
+                        break;
+
+		case 0x0006:
+                    //MixAddSynth_Waveform(PB, m_TempBuffer, _Size);
+                        break;
+                        
+      		// These are more "synth" formats - square wave, saw wave etc.
+		case 0x0002:          
+			return;
+
+                    
 		// AFC formats
 		case 0x0005:		// AFC with extra low bitrate (32:5 compression). Not yet seen.
 			WARN_LOG(DSPHLE, "5 byte AFC - does it work?");
@@ -292,11 +308,6 @@ void CUCode_Zelda::MixAddVoice(ZeldaVoicePB &PB, s32* _LeftBuffer, s32* _RightBu
 			MixAddVoice_PCM16(PB, m_TempBuffer, _Size);
 			break;
 
-		// These are "synth" formats - square wave, saw wave etc.
-		case 0x0000:
-		case 0x0001:        // Used for "Denied" sound in Zelda
-		case 0x0002:          
-			return;
 
 		case 0x0008:   // Likely PCM8 - normal PCM 8-bit audio. Used in Mario Kart DD.
 		case 0x0020: