Add Sony Mouse Controller support

- Tested with Final Doom. Worked great.

5 files changed, 115 insertions, 37 deletions

diff --git a/frontend/libretro.c b/frontend/libretro.c
index d489ce5..a91c5c1 100644
--- a/frontend/libretro.c
+++ b/frontend/libretro.c
@@ -112,6 +112,7 @@ int in_type[8] = {
 int in_analog_left[8][2] = { { 127, 127 }, { 127, 127 }, { 127, 127 }, { 127, 127 }, { 127, 127 }, { 127, 127 }, { 127, 127 }, { 127, 127 } };
 int in_analog_right[8][2] = { { 127, 127 }, { 127, 127 }, { 127, 127 }, { 127, 127 }, { 127, 127 }, { 127, 127 }, { 127, 127 }, { 127, 127 } };
 unsigned short in_keystate[PORTS_NUMBER];
+int in_mouse[8][2];
 int multitap1 = 0;
 int multitap2 = 0;
 int in_enable_vibration = 1;
@@ -595,6 +596,8 @@ static void update_controller_port_variable(unsigned port)
          in_type[port] = PSE_PAD_TYPE_NEGCON;
       else if (strcmp(var.value, "guncon") == 0)
          in_type[port] = PSE_PAD_TYPE_GUNCON;
+      else if (strcmp(var.value, "mouse") == 0)
+         in_type[port] = PSE_PAD_TYPE_MOUSE;
       else if (strcmp(var.value, "none") == 0)
          in_type[port] = PSE_PAD_TYPE_NONE;
       // else 'default' case, do nothing
@@ -2428,6 +2431,39 @@ static void update_input(void)
       case PSE_PAD_TYPE_NEGCON:
          update_input_negcon(i, ret);
          break;
+      case PSE_PAD_TYPE_MOUSE:
+      {
+         /* mouse x/y movement, range -128 to +127 */
+         float accum_x = 0, accum_y = 0;
+         
+         float x = input_state_cb(i, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_X);
+         float y = input_state_cb(i, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_Y);
+
+         accum_x += x;
+         accum_y += y;
+
+         if (accum_x > 127)
+            accum_x = 127;
+         else if (accum_x < -128)
+            accum_x = -128;
+
+         if (accum_y > 127)
+            accum_y = 127;
+         else if (accum_y < -128)
+            accum_y = -128;
+
+         in_mouse[i][0] = (int)accum_x;
+         in_mouse[i][1] = (int)accum_y;
+
+         /* mouse button state */
+         if (input_state_cb(i, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_LEFT))
+            in_keystate[i] |= 1 << 11;
+
+         if (input_state_cb(i, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_RIGHT))
+            in_keystate[i] |= 1 << 10;
+
+         break;
+      }
       default:
          // Query digital inputs
          for (j = 0; j < RETRO_PSX_MAP_LEN; j++)
diff --git a/frontend/libretro_core_options.h b/frontend/libretro_core_options.h
index cab6a9a..46670ba 100644
--- a/frontend/libretro_core_options.h
+++ b/frontend/libretro_core_options.h
@@ -118,6 +118,7 @@ struct retro_core_option_definition option_defs_us[] = {
          { "dualshock", NULL },
          { "negcon",    NULL },
          { "guncon",    NULL },
+         { "mouse",     NULL },
          { "none",      NULL },
          { NULL, NULL },
       },
@@ -133,6 +134,7 @@ struct retro_core_option_definition option_defs_us[] = {
          { "dualshock", NULL },
          { "negcon",    NULL },
          { "guncon",    NULL },
+         { "mouse",     NULL },
          { "none",      NULL },
          { NULL, NULL },
       },
@@ -148,6 +150,7 @@ struct retro_core_option_definition option_defs_us[] = {
          { "dualshock", NULL },
          { "negcon",    NULL },
          { "guncon",    NULL },
+         { "mouse",     NULL },
          { "none",      NULL },
          { NULL, NULL },
       },
@@ -163,6 +166,7 @@ struct retro_core_option_definition option_defs_us[] = {
          { "dualshock", NULL },
          { "negcon",    NULL },
          { "guncon",    NULL },
+         { "mouse",     NULL },
          { "none",      NULL },
          { NULL, NULL },
       },
@@ -178,6 +182,7 @@ struct retro_core_option_definition option_defs_us[] = {
          { "dualshock", NULL },
          { "negcon",    NULL },
          { "guncon",    NULL },
+         { "mouse",     NULL },
          { "none",      NULL },
          { NULL, NULL },
       },
@@ -192,6 +197,7 @@ struct retro_core_option_definition option_defs_us[] = {
          { "dualshock", NULL },
          { "negcon",    NULL },
          { "guncon",    NULL },
+         { "mouse",     NULL },
          { "none",      NULL },
          { NULL, NULL },
       },
@@ -206,6 +212,7 @@ struct retro_core_option_definition option_defs_us[] = {
          { "dualshock", NULL },
          { "negcon",    NULL },
          { "guncon",    NULL },
+         { "mouse",     NULL },
          { "none",      NULL },
          { NULL, NULL },
       },
@@ -220,6 +227,7 @@ struct retro_core_option_definition option_defs_us[] = {
          { "dualshock", NULL },
          { "negcon",    NULL },
          { "guncon",    NULL },
+         { "mouse",     NULL },
          { "none",      NULL },
          { NULL, NULL },
       },
diff --git a/frontend/libretro_core_options_intl.h b/frontend/libretro_core_options_intl.h
index 107cd57..1e7fd79 100644
--- a/frontend/libretro_core_options_intl.h
+++ b/frontend/libretro_core_options_intl.h
@@ -124,6 +124,8 @@ struct retro_core_option_definition option_defs_tr[] = {
          { "analog",    NULL },
          { "dualshock", NULL },
          { "negcon",    NULL },
+         { "guncon",    NULL },
+         { "mouse",     NULL },
          { "none",      "hiçbiri" },
          { NULL, NULL },
       },
@@ -138,6 +140,8 @@ struct retro_core_option_definition option_defs_tr[] = {
          { "analog",    NULL },
          { "dualshock", NULL },
          { "negcon",    NULL },
+         { "guncon",    NULL },
+         { "mouse",     NULL },
          { "none",      "hiçbiri" },
          { NULL, NULL },
       },
@@ -152,6 +156,8 @@ struct retro_core_option_definition option_defs_tr[] = {
          { "analog",    NULL },
          { "dualshock", NULL },
          { "negcon",    NULL },
+         { "guncon",    NULL },
+         { "mouse",     NULL },
          { "none",      "hiçbiri" },
          { NULL, NULL },
       },
@@ -166,6 +172,8 @@ struct retro_core_option_definition option_defs_tr[] = {
          { "analog",    NULL },
          { "dualshock", NULL },
          { "negcon",    NULL },
+         { "guncon",    NULL },
+         { "mouse",     NULL },
          { "none",      "hiçbiri" },
          { NULL, NULL },
       },
@@ -180,6 +188,8 @@ struct retro_core_option_definition option_defs_tr[] = {
          { "analog",    NULL },
          { "dualshock", NULL },
          { "negcon",    NULL },
+         { "guncon",    NULL },
+         { "mouse",     NULL },
          { "none",      "hiçbiri" },
          { NULL, NULL },
       },
@@ -193,6 +203,8 @@ struct retro_core_option_definition option_defs_tr[] = {
          { "analog",    NULL },
          { "dualshock", NULL },
          { "negcon",    NULL },
+         { "guncon",    NULL },
+         { "mouse",     NULL },
          { "none",      "hiçbiri" },
          { NULL, NULL },
       },
@@ -206,6 +218,8 @@ struct retro_core_option_definition option_defs_tr[] = {
          { "analog",    NULL },
          { "dualshock", NULL },
          { "negcon",    NULL },
+         { "guncon",    NULL },
+         { "mouse",     NULL },
          { "none",      "hiçbiri" },
          { NULL, NULL },
       },
@@ -219,6 +233,8 @@ struct retro_core_option_definition option_defs_tr[] = {
          { "analog",    NULL },
          { "dualshock", NULL },
          { "negcon",    NULL },
+         { "guncon",    NULL },
+         { "mouse",     NULL },
          { "none",      "hiçbiri" },
          { NULL, NULL },
       },
diff --git a/frontend/plugin.c b/frontend/plugin.c
index 30b0e08..a617c24 100644
--- a/frontend/plugin.c
+++ b/frontend/plugin.c
@@ -51,47 +51,64 @@ extern int  CALLBACK SPUplayCDDAchannel(short *, int);
 /* PAD */
 static long PADreadPort1(PadDataS *pad) {
 	int pad_index = pad->requestPadIndex;
-    pad->controllerType = in_type[pad_index];
-    pad->buttonStatus = ~in_keystate[pad_index];
-    if (multitap1 == 1)
-    	pad->portMultitap = 1;
-    else
-    	pad->portMultitap = 0;
-    
-    if (in_type[pad_index] == PSE_PAD_TYPE_ANALOGJOY || in_type[pad_index] == PSE_PAD_TYPE_ANALOGPAD || in_type[pad_index] == PSE_PAD_TYPE_NEGCON || in_type[pad_index] == PSE_PAD_TYPE_GUNCON)
-    {
-        pad->leftJoyX = in_analog_left[pad_index][0];
-        pad->leftJoyY = in_analog_left[pad_index][1];
-        pad->rightJoyX = in_analog_right[pad_index][0];
-        pad->rightJoyY = in_analog_right[pad_index][1];
-	    
-	pad->absoluteX = in_analog_left[pad_index][0];
-        pad->absoluteY = in_analog_left[pad_index][1];
-    }
-    return 0;
+
+	pad->controllerType = in_type[pad_index];
+	pad->buttonStatus = ~in_keystate[pad_index];
+
+	if (multitap1 == 1)
+		pad->portMultitap = 1;
+	else
+		pad->portMultitap = 0;
+
+	if (in_type[pad_index] == PSE_PAD_TYPE_ANALOGJOY || in_type[pad_index] == PSE_PAD_TYPE_ANALOGPAD || in_type[pad_index] == PSE_PAD_TYPE_NEGCON || in_type[pad_index] == PSE_PAD_TYPE_GUNCON)
+	{
+		pad->leftJoyX = in_analog_left[pad_index][0];
+		pad->leftJoyY = in_analog_left[pad_index][1];
+		pad->rightJoyX = in_analog_right[pad_index][0];
+		pad->rightJoyY = in_analog_right[pad_index][1];
+
+		pad->absoluteX = in_analog_left[pad_index][0];
+		pad->absoluteY = in_analog_left[pad_index][1];
+	}
+
+	if (in_type[pad_index] == PSE_PAD_TYPE_MOUSE)
+	{
+		pad->moveX = in_mouse[pad_index][0];
+		pad->moveY = in_mouse[pad_index][1];
+	}
+
+	return 0;
 }
 
 static long PADreadPort2(PadDataS *pad) {
 	int pad_index = pad->requestPadIndex;
-    
-    pad->controllerType = in_type[pad_index];
-    pad->buttonStatus = ~in_keystate[pad_index];
-    if (multitap2 == 1)
-    	pad->portMultitap = 2;
-    else
-    	pad->portMultitap = 0;
-    
-    if (in_type[pad_index] == PSE_PAD_TYPE_ANALOGJOY || in_type[pad_index] == PSE_PAD_TYPE_ANALOGPAD || in_type[pad_index] == PSE_PAD_TYPE_NEGCON || in_type[pad_index] == PSE_PAD_TYPE_GUNCON)
-    {
-        pad->leftJoyX = in_analog_left[pad_index][0];
-        pad->leftJoyY = in_analog_left[pad_index][1];
-        pad->rightJoyX = in_analog_right[pad_index][0];
-        pad->rightJoyY = in_analog_right[pad_index][1];
-	    
-	pad->absoluteX = in_analog_left[pad_index][0];
-        pad->absoluteY = in_analog_left[pad_index][1];
-    }
-    return 0;
+
+	pad->controllerType = in_type[pad_index];
+	pad->buttonStatus = ~in_keystate[pad_index];
+
+	if (multitap2 == 1)
+		pad->portMultitap = 2;
+	else
+		pad->portMultitap = 0;
+
+	if (in_type[pad_index] == PSE_PAD_TYPE_ANALOGJOY || in_type[pad_index] == PSE_PAD_TYPE_ANALOGPAD || in_type[pad_index] == PSE_PAD_TYPE_NEGCON || in_type[pad_index] == PSE_PAD_TYPE_GUNCON)
+	{
+		pad->leftJoyX = in_analog_left[pad_index][0];
+		pad->leftJoyY = in_analog_left[pad_index][1];
+		pad->rightJoyX = in_analog_right[pad_index][0];
+		pad->rightJoyY = in_analog_right[pad_index][1];
+
+		pad->absoluteX = in_analog_left[pad_index][0];
+		pad->absoluteY = in_analog_left[pad_index][1];
+	}
+
+	if (in_type[pad_index] == PSE_PAD_TYPE_MOUSE)
+	{
+		pad->moveX = in_mouse[pad_index][0];
+		pad->moveY = in_mouse[pad_index][1];
+	}
+
+	return 0;
 }
 
 /* GPU */
diff --git a/frontend/plugin_lib.h b/frontend/plugin_lib.h
index d51c5e7..09cc4c5 100644
--- a/frontend/plugin_lib.h
+++ b/frontend/plugin_lib.h
@@ -24,6 +24,7 @@ extern int multitap2;
 extern int in_analog_left[8][2];
 extern int in_analog_right[8][2];
 extern unsigned short in_keystate[8];
+extern int in_mouse[8][2];
 
 extern int in_adev[2], in_adev_axis[2][2];
 extern int in_adev_is_nublike[2];