From b22753762fbbbbb93559e83b2692a31082519d06 Mon Sep 17 00:00:00 2001
From: bbbradsmith <bbbradsmith@users.noreply.github.com>
Date: Fri, 7 Feb 2020 06:50:10 -0500
Subject: [PATCH] Virtual Boy controller support

---
 src/drivers/win/input.cpp     | 47 ++++++++++++++++++++++++++++-
 src/drivers/win/res.rc        | 27 +++++++++++++++++
 src/git.h                     |  6 ++--
 src/input.cpp                 |  4 +++
 src/input/virtualboy.cpp      | 57 +++++++++++++++++++++++++++++++++++
 vc/vc14_fceux.vcxproj         |  1 +
 vc/vc14_fceux.vcxproj.filters |  3 ++
 7 files changed, 142 insertions(+), 3 deletions(-)
 create mode 100644 src/input/virtualboy.cpp

diff --git a/src/drivers/win/input.cpp b/src/drivers/win/input.cpp
index 0eb9e32f..edded8ea 100644
--- a/src/drivers/win/input.cpp
+++ b/src/drivers/win/input.cpp
@@ -398,6 +398,36 @@ static uint32 UpdatePPadData(int w)
 }
 
 
+ButtConfig virtualboysc[2][14]={
+	{
+		MK(K),MK(J),MK(E),MK(R),
+		MK(W),MK(S),MK(A),MK(D),
+		MK(L),MK(I),MK(Q),MK(O),
+		MK(Y),MK(U)
+	},
+	{
+		MK(K),MK(J),MK(E),MK(R),
+		MK(W),MK(S),MK(A),MK(D),
+		MK(L),MK(I),MK(Q),MK(O),
+		MK(Y),MK(U)
+	}
+};
+
+static uint32 virtualboybuf[2];
+
+static uint32 UpdateVirtualBoyData(int w)
+{
+	uint32 r=0;
+	ButtConfig *virtualboytsc=virtualboysc[w];
+	int x;
+
+	for(x=0;x<14;x++)
+		if(DTestButton(&virtualboytsc[x])) r|=1<<x;
+
+	return r;
+}
+
+
 static uint8 fkbkeys[0x48];
 static uint8 suborkbkeys[0x65];
 
@@ -444,6 +474,9 @@ void FCEUD_UpdateInput()
 			case SI_POWERPADB:
 				powerpadbuf[x]=UpdatePPadData(x);
 				break;
+			case SI_VIRTUALBOY:
+				virtualboybuf[x]=UpdateVirtualBoyData(x);
+				break;
 		}
 
 		switch(InputType[2])
@@ -531,6 +564,9 @@ void InitInputPorts(bool fourscore)
 			case SI_SNES:
 				InputDPtr=snespad_return;
 				break;
+			case SI_VIRTUALBOY:
+				InputDPtr=&virtualboybuf[i];
+				break;
 			}
 			FCEUI_SetInput(i,(ESI)InputType[i],InputDPtr,attrib);
 		}
@@ -781,6 +817,7 @@ CFGSTRUCT InputConfig[]={
 	AC(GamePadPreset3),
 	AC(fkbmap),
 	AC(suborkbmap),
+	AC(virtualboysc),
 	ENDCFGSTRUCT
 };
 
@@ -812,6 +849,10 @@ void InitInputStuff(void)
 		JoyClearBC(&MahjongButtons[x]);
 	for(x=0; x<4; x++)
 		JoyClearBC(&HyperShotButtons[x]);
+
+	for(x=0; x<2; x++)
+		for(y=0; y<14; y++)
+			JoyClearBC(&virtualboysc[x][y]);
 }
 
 static char *MakeButtString(ButtConfig *bc)
@@ -1148,7 +1189,7 @@ const unsigned int NUMBER_OF_PORTS = 2;
 const unsigned int NUMBER_OF_NES_DEVICES = SI_COUNT + 1;
 const static unsigned int NUMBER_OF_FAMICOM_DEVICES = SIFC_COUNT + 1;
 //these are unfortunate lists. they match the ESI and ESIFC enums
-static const int configurable_nes[NUMBER_OF_NES_DEVICES]= { 0, 1, 0, 1, 1, 0, 0, 1 };
+static const int configurable_nes[NUMBER_OF_NES_DEVICES]= { 0, 1, 0, 1, 1, 0, 0, 1, 0, 1 };
 static const int configurable_fam[NUMBER_OF_FAMICOM_DEVICES]= { 0, 0, 0, 0, 1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 0 };
 const unsigned int FAMICOM_POSITION = 2;
 
@@ -1477,6 +1518,10 @@ INT_PTR CALLBACK InputConCallB(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lP
 					case SI_POWERPADB:
 						DoTBConfig(hwndDlg, text, "POWERPADDIALOG", powerpadsc[which], 12);
 						break;
+
+					case SI_VIRTUALBOY:
+						DoTBConfig(hwndDlg, text, "VIRTUALBOYDIALOG", virtualboysc[which], 14);
+						break;
 					}
 				}
 
diff --git a/src/drivers/win/res.rc b/src/drivers/win/res.rc
index 70d22e6a..b8eeb475 100644
--- a/src/drivers/win/res.rc
+++ b/src/drivers/win/res.rc
@@ -1083,6 +1083,29 @@ BEGIN
     PUSHBUTTON      "12",311,91,59,16,12
 END
 
+VIRTUALBOYDIALOG DIALOGEX 4, 109, 243, 121
+STYLE DS_SETFONT | DS_MODALFRAME | DS_3DLOOK | WS_POPUP | WS_VISIBLE | WS_CAPTION | WS_SYSMENU
+CAPTION "Virtual Boy Configuration"
+FONT 8, "MS Shell Dlg", 0, 0, 0x0
+BEGIN
+    DEFPUSHBUTTON   "Close",BTN_CLOSE,177,97,56,14
+    GROUPBOX        "",GRP_GAMEPAD1,4,8,232,82,WS_GROUP
+    PUSHBUTTON      "Up",    304, 40,36,30,12
+    PUSHBUTTON      "Left",  306, 10,50,30,12
+    PUSHBUTTON      "Right", 307, 70,50,30,12
+    PUSHBUTTON      "Down",  305, 40,64,30,12
+    PUSHBUTTON      "Select",302, 46,19,32,12
+    PUSHBUTTON      "Start", 303, 82,19,32,12
+    PUSHBUTTON      "Left",  301,140,50,30,12
+    PUSHBUTTON      "Down",  300,170,64,30,12
+    PUSHBUTTON      "Right", 308,200,50,30,12
+    PUSHBUTTON      "Up",    309,170,36,30,12
+    PUSHBUTTON      "L",     310, 10,19,32,12
+    PUSHBUTTON      "R",     311,198,19,32,12
+    PUSHBUTTON      "B",     312,126,19,32,12
+    PUSHBUTTON      "A",     313,162,19,32,12
+END
+
 QUIZKINGDIALOG DIALOG 30, 123, 160, 74
 STYLE DS_SETFONT | DS_MODALFRAME | DS_3DLOOK | WS_POPUP | WS_VISIBLE | WS_CAPTION | WS_SYSMENU
 CAPTION "quiz king"
@@ -2435,6 +2458,10 @@ BEGIN
     BEGIN
     END
 
+    "VIRTUALBOYDIALOG", DIALOG
+    BEGIN
+    END
+
     "QUIZKINGDIALOG", DIALOG
     BEGIN
     END
diff --git a/src/git.h b/src/git.h
index 5dea9df4..7a955d5f 100644
--- a/src/git.h
+++ b/src/git.h
@@ -38,8 +38,9 @@ enum ESI
 	SI_MOUSE		= 6,
 	SI_SNES			= 7,
 	SI_SNES_MOUSE	= 8,
+	SI_VIRTUALBOY	= 9,
 
-	SI_COUNT = SI_SNES_MOUSE
+	SI_COUNT = SI_VIRTUALBOY
 };
 
 inline const char* ESI_Name(ESI esi)
@@ -54,7 +55,8 @@ inline const char* ESI_Name(ESI esi)
 		"Arkanoid Paddle",
 		"Subor Mouse",
 		"SNES Pad",
-		"SNES Mouse"
+		"SNES Mouse",
+		"Virtual Boy"
 	};
 
 	if(esi >= SI_NONE && esi <= SI_COUNT)
diff --git a/src/input.cpp b/src/input.cpp
index ff2f6d76..f44c7ef6 100644
--- a/src/input.cpp
+++ b/src/input.cpp
@@ -64,6 +64,7 @@ extern INPUTC *FCEU_InitPowerpadB(int w);
 extern INPUTC *FCEU_InitArkanoid(int w);
 extern INPUTC *FCEU_InitMouse(int w);
 extern INPUTC *FCEU_InitSNESMouse(int w);
+extern INPUTC *FCEU_InitVirtualBoy(int w);
 
 extern INPUTCFC *FCEU_InitArkanoidFC(void);
 extern INPUTCFC *FCEU_InitSpaceShadow(void);
@@ -479,6 +480,9 @@ static void SetInputStuff(int port)
 	case SI_SNES_MOUSE:
 		joyports[port].driver=FCEU_InitSNESMouse(port);
 		break;
+	case SI_VIRTUALBOY:
+		joyports[port].driver=FCEU_InitVirtualBoy(port);
+		break;
 	case SI_NONE:
 		joyports[port].driver=&DummyJPort;
 		break;
diff --git a/src/input/virtualboy.cpp b/src/input/virtualboy.cpp
new file mode 100644
index 00000000..a689309d
--- /dev/null
+++ b/src/input/virtualboy.cpp
@@ -0,0 +1,57 @@
+/* FCE Ultra - NES/Famicom Emulator
+ *
+ * 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include "share.h"
+
+static uint32 vbrsb[2];
+static uint32 vbrdata[2];
+
+static uint8 ReadVB(int w)
+{
+	uint8 ret=0;
+	ret |= (vbrdata[w]>>vbrsb[w])&1;
+	if(vbrsb[w] >= 16)
+	{
+		ret|=0x1;
+		vbrsb[w] = 16;
+	}
+	if(!fceuindbg)
+		vbrsb[w]++;
+	return ret;
+}
+
+static void StrobeVB(int w)
+{
+	vbrsb[w]=0;
+}
+
+void UpdateVB(int w, void *data, int arg)
+{
+	vbrdata[w]=0;
+	for (int x=0;x<14;x++)
+	{
+		vbrdata[w]|=(((*(uint32 *)data)>>x)&1)<<x;
+	}
+}
+
+static INPUTC VirtualBoyCtrl={ReadVB,0,StrobeVB,UpdateVB,0,0};
+
+INPUTC *FCEU_InitVirtualBoy(int w)
+{
+	vbrsb[w]=vbrdata[w]=0;
+	return(&VirtualBoyCtrl);
+}
diff --git a/vc/vc14_fceux.vcxproj b/vc/vc14_fceux.vcxproj
index e0beaac1..c56b0458 100644
--- a/vc/vc14_fceux.vcxproj
+++ b/vc/vc14_fceux.vcxproj
@@ -702,6 +702,7 @@
     <ClCompile Include="..\src\input\shadow.cpp" />
     <ClCompile Include="..\src\input\suborkb.cpp" />
     <ClCompile Include="..\src\input\toprider.cpp" />
+    <ClCompile Include="..\src\input\virtualboy.cpp" />
     <ClCompile Include="..\src\input\zapper.cpp" />
     <ClCompile Include="..\src\boards\emu2413.c" />
     <ClCompile Include="..\src\utils\ConvertUTF.c" />
diff --git a/vc/vc14_fceux.vcxproj.filters b/vc/vc14_fceux.vcxproj.filters
index 44320047..e8870620 100644
--- a/vc/vc14_fceux.vcxproj.filters
+++ b/vc/vc14_fceux.vcxproj.filters
@@ -1102,6 +1102,9 @@
     <ClCompile Include="..\src\boards\fns.cpp">
       <Filter>boards</Filter>
     </ClCompile>
+    <ClCompile Include="..\src\input\virtualboy.cpp">
+      <Filter>input</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\src\drivers\common\args.h">