bsnes-patches/v087/0004-Fix-mouse-polling.patch

   1 From e6ec3c0d382f57e2c447b1a5dbfc4f58fc0ecfef Mon Sep 17 00:00:00 2001
   2 From: Ilari Liusvaara <ilari.liusvaara@elisanet.fi>
   3 Date: Wed, 7 Mar 2012 16:57:18 +0200
   4 Subject: [PATCH 4/6] Fix mouse polling
   5
   6 Don't poll for mouse motion excessive number of times (no need to poll it for
   7 each bit!)
   8 ---
   9  snes/controller/mouse/mouse.cpp |   14 ++++++++++++--
  10  snes/controller/mouse/mouse.hpp |    2 ++
  11  2 files changed, 14 insertions(+), 2 deletions(-)
  12
  13 diff --git a/snes/controller/mouse/mouse.cpp b/snes/controller/mouse/mouse.cpp
  14 index 6b26fae..1a066b9 100755
  15 --- a/snes/controller/mouse/mouse.cpp
  16 +++ b/snes/controller/mouse/mouse.cpp
  17 @@ -3,9 +3,13 @@
  18  uint2 Mouse::data() {
  19    if(counter >= 32) return 1;
  20
  21 -  int position_x = interface->inputPoll(port, Input::Device::Mouse, 0, (unsigned)Input::MouseID::X);  //-n = left, 0 = center, +n = right
  22 -  int position_y = interface->inputPoll(port, Input::Device::Mouse, 0, (unsigned)Input::MouseID::Y);  //-n = up,   0 = center, +n = down
  23 +  if(counter == 0) {
  24 +    _position_x = interface->inputPoll(port, Input::Device::Mouse, 0, (unsigned)Input::MouseID::X);  //-n = left, 0 = center, +n = right
  25 +    _position_y = interface->inputPoll(port, Input::Device::Mouse, 0, (unsigned)Input::MouseID::Y);  //-n = up,   0 = center, +n = down
  26 +  }
  27
  28 +  int position_x = _position_x;
  29 +  int position_y = _position_y;
  30    bool direction_x = position_x < 0;  //0 = right, 1 = left
  31    bool direction_y = position_y < 0;  //0 = down,  1 = up
  32
  33 @@ -67,10 +71,16 @@ void Mouse::serialize(serializer& s) {
  34    unsigned char block[Controller::SaveSize] = {0};
  35    block[0] = latched ? 1 : 0;
  36    block[1] = counter;
  37 +  block[2] = (unsigned short)_position_x >> 8;
  38 +  block[3] = (unsigned short)_position_x;
  39 +  block[4] = (unsigned short)_position_y >> 8;
  40 +  block[5] = (unsigned short)_position_y;
  41    s.array(block, Controller::SaveSize);
  42    if(s.mode() == nall::serializer::Load) {
  43      latched = (block[0] != 0);
  44      counter = block[1];
  45 +    _position_x = (short)(((unsigned short)block[2] << 8) | (unsigned short)block[3]);
  46 +    _position_y = (short)(((unsigned short)block[4] << 8) | (unsigned short)block[5]);
  47    }
  48  }
  49
  50 diff --git a/snes/controller/mouse/mouse.hpp b/snes/controller/mouse/mouse.hpp
  51 index b66ea51..b07c8ab 100755
  52 --- a/snes/controller/mouse/mouse.hpp
  53 +++ b/snes/controller/mouse/mouse.hpp
  54 @@ -6,4 +6,6 @@ struct Mouse : Controller {
  55  private:
  56    bool latched;
  57    unsigned counter;
  58 +  int _position_x;
  59 +  int _position_y;
  60  };
  61 --
  62 1.7.9.48.g85da4d
  63