Implemented optional soft panning support for the included chip emulators, disabled by default.

1 files changed, 6 insertions, 0 deletions

diff --git a/src/chips/dosbox/dbopl.h b/src/chips/dosbox/dbopl.h
index 73c0aa9..c265fc6 100644
--- a/src/chips/dosbox/dbopl.h
+++ b/src/chips/dosbox/dbopl.h
@@ -192,6 +192,9 @@ struct Channel {
 	Bit8s maskLeft;		//Sign extended values for both channel's panning
 	Bit8s maskRight;
 
+	Bit16u panLeft; // Extended behavior, scale values for soft panning
+	Bit16u panRight;
+
 	//Forward the channel data to the operators of the channel
 	void SetChanData( const Chip* chip, Bit32u data );
 	//Change in the chandata, check for new values and if we have to forward to operators
@@ -201,6 +204,8 @@ struct Channel {
 	void WriteB0( const Chip* chip, Bit8u val );
 	void WriteC0( const Chip* chip, Bit8u val );
 
+	void WritePan( Bit8u val );
+
 	//call this for the first channel
 	template< bool opl3Mode >
 	void GeneratePercussion( Chip* chip, Bit32s* output );
@@ -271,6 +276,7 @@ struct Chip {
 
 struct Handler {
 	DBOPL::Chip chip;
+	void WritePan( Bit32u port, Bit8u val );
 	Bit32u WriteAddr( Bit32u port, Bit8u val );
 	void WriteReg( Bit32u addr, Bit8u val );
 	void GenerateArr(Bit32s *out, Bitu *samples);