Highly experimental synth for zelda ucode.

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

3 files changed, 67 insertions, 6 deletions

diff --git a/Source/Plugins/Plugin_DSP_HLE/Src/UCodes/UCode_Zelda.h b/Source/Plugins/Plugin_DSP_HLE/Src/UCodes/UCode_Zelda.h
index 75bd653389..0d6a4c6e3b 100644
--- a/Source/Plugins/Plugin_DSP_HLE/Src/UCodes/UCode_Zelda.h
+++ b/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
diff --git a/Source/Plugins/Plugin_DSP_HLE/Src/UCodes/UCode_Zelda_Synth.cpp b/Source/Plugins/Plugin_DSP_HLE/Src/UCodes/UCode_Zelda_Synth.cpp
new file mode 100644
index 0000000000..2989b4ae2c
--- /dev/null
+++ b/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;
+}
+
+
+
diff --git a/Source/Plugins/Plugin_DSP_HLE/Src/UCodes/UCode_Zelda_Voice.cpp b/Source/Plugins/Plugin_DSP_HLE/Src/UCodes/UCode_Zelda_Voice.cpp
index 4bf09b4313..dd874708ee 100644
--- a/Source/Plugins/Plugin_DSP_HLE/Src/UCodes/UCode_Zelda_Voice.cpp
+++ b/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: