From 863bde899b53ae31e854096ac5258208c848a293 Mon Sep 17 00:00:00 2001
From: Ilari Liusvaara <ilari.liusvaara@elisanet.fi>
Date: Thu, 6 Mar 2014 21:07:54 +0200
Subject: [PATCH 15/27] Fix mouse speed support

---
 snes/config/config.cpp          |  1 +
 snes/config/config.hpp          |  3 +++
 snes/controller/mouse/mouse.cpp | 11 +++++++++--
 snes/controller/mouse/mouse.hpp |  1 +
 4 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/snes/config/config.cpp b/snes/config/config.cpp
index 206daae0..19831370 100755
--- a/snes/config/config.cpp
+++ b/snes/config/config.cpp
@@ -8,6 +8,7 @@ Configuration::Configuration() {
   expansion_port   = System::ExpansionPortDevice::BSX;
   region           = System::Region::Autodetect;
   random           = true;
+  mouse_speed_fix  = false;
 
   cpu.version         = 2;
   cpu.ntsc_frequency  = 21477272;  //315 / 88 * 6000000
diff --git a/snes/config/config.hpp b/snes/config/config.hpp
index dabde597..68fe0bde 100755
--- a/snes/config/config.hpp
+++ b/snes/config/config.hpp
@@ -1,9 +1,12 @@
+#define BSNES_SUPPORTS_MOUSE_SPEED_FIX
+
 struct Configuration {
   Input::Device controller_port1;
   Input::Device controller_port2;
   System::ExpansionPortDevice expansion_port;
   System::Region region;
   bool random;
+  bool mouse_speed_fix;
 
   struct CPU {
     unsigned version;
diff --git a/snes/controller/mouse/mouse.cpp b/snes/controller/mouse/mouse.cpp
index 1a066b98..caa7a358 100755
--- a/snes/controller/mouse/mouse.cpp
+++ b/snes/controller/mouse/mouse.cpp
@@ -1,6 +1,10 @@
 #ifdef CONTROLLER_CPP
 
 uint2 Mouse::data() {
+  if(config.mouse_speed_fix && latched) {
+    speed = (speed + 1) % 3;
+    return 0;
+  }
   if(counter >= 32) return 1;
 
   if(counter == 0) {
@@ -31,8 +35,8 @@ uint2 Mouse::data() {
 
   case  8: return interface->inputPoll(port, Input::Device::Mouse, 0, (unsigned)Input::MouseID::Right);
   case  9: return interface->inputPoll(port, Input::Device::Mouse, 0, (unsigned)Input::MouseID::Left);
-  case 10: return 0;  //speed (0 = slow, 1 = normal, 2 = fast, 3 = unused)
-  case 11: return 0;  // ||
+  case 10: return speed >> 1;   //speed (0 = slow, 1 = normal, 2 = fast, 3 = unused)
+  case 11: return speed & 1;    // ||
 
   case 12: return 0;  //signature
   case 13: return 0;  // ||
@@ -75,10 +79,12 @@ void Mouse::serialize(serializer& s) {
   block[3] = (unsigned short)_position_x;
   block[4] = (unsigned short)_position_y >> 8;
   block[5] = (unsigned short)_position_y;
+  block[6] = speed;
   s.array(block, Controller::SaveSize);
   if(s.mode() == nall::serializer::Load) {
     latched = (block[0] != 0);
     counter = block[1];
+    speed = block[6];
     _position_x = (short)(((unsigned short)block[2] << 8) | (unsigned short)block[3]);
     _position_y = (short)(((unsigned short)block[4] << 8) | (unsigned short)block[5]);
   }
@@ -87,6 +93,7 @@ void Mouse::serialize(serializer& s) {
 Mouse::Mouse(bool port) : Controller(port) {
   latched = 0;
   counter = 0;
+  speed = 0;
 }
 
 #endif
diff --git a/snes/controller/mouse/mouse.hpp b/snes/controller/mouse/mouse.hpp
index b07c8ab7..13a9313e 100755
--- a/snes/controller/mouse/mouse.hpp
+++ b/snes/controller/mouse/mouse.hpp
@@ -6,6 +6,7 @@ struct Mouse : Controller {
 private:
   bool latched;
   unsigned counter;
+  unsigned speed;
   int _position_x;
   int _position_y;
 };
-- 
2.15.0.rc1