src/add-ons/kernel/bus_managers/ps2/movement_maker.h

   1 #ifndef MOVEMENT_MAKER_H
   2 #define MOVEMENT_MAKER_H
   3
   4 #include <OS.h>
   5
   6 #include <keyboard_mouse_driver.h>
   7 #include <touchpad_settings.h>
   8
   9
  10 float floorf(float x);
  11 float ceilf(float x);
  12 float sqrtf(float x);
  13 int32 make_small(float value);
  14
  15
  16 struct touch_event {
  17         uint8           buttons;
  18         uint32          xPosition;
  19         uint32          yPosition;
  20         uint8           zPressure;
  21         // absolut mode (unused)
  22         bool            finger;
  23         bool            gesture;
  24         // absolut w mode
  25         uint8           wValue;
  26 };
  27
  28
  29 struct hardware_specs {
  30         uint16          edgeMotionWidth;
  31
  32         uint16          areaStartX;
  33         uint16          areaEndX;
  34         uint16          areaStartY;
  35         uint16          areaEndY;
  36
  37         uint16          minPressure;
  38         // the value you reach when you hammer really hard on the touchpad
  39         uint16          realMaxPressure;
  40         uint16          maxPressure;
  41 };
  42
  43
  44 /*! The raw movement calculation is calibrated on ths synaptics touchpad. */
  45 // increase the touchpad size a little bit
  46 #define SYN_AREA_TOP_LEFT_OFFSET        40
  47 #define SYN_AREA_BOTTOM_RIGHT_OFFSET    60
  48 #define SYN_AREA_START_X                (1472 - SYN_AREA_TOP_LEFT_OFFSET)
  49 #define SYN_AREA_END_X                  (5472 + SYN_AREA_BOTTOM_RIGHT_OFFSET)
  50 #define SYN_WIDTH                               (SYN_AREA_END_X - SYN_AREA_START_X)
  51 #define SYN_AREA_START_Y                (1408 - SYN_AREA_TOP_LEFT_OFFSET)
  52 #define SYN_AREA_END_Y                  (4448 + SYN_AREA_BOTTOM_RIGHT_OFFSET)
  53 #define SYN_HEIGHT                              (SYN_AREA_END_Y - SYN_AREA_START_Y)
  54
  55
  56 class MovementMaker {
  57 public:
  58                         void                            SetSettings(touchpad_settings* settings);
  59                         void                            SetSpecs(hardware_specs* specs);
  60
  61                         int32                           xDelta;
  62                         int32                           yDelta;
  63
  64                         float                           scrolling_x;
  65                         float                           scrolling_y;
  66
  67 protected:
  68                         void                            StartNewMovment();
  69                         void                            GetMovement(uint32 posX, uint32 posY);
  70                         void                            GetScrolling(uint32 posX, uint32 posY);
  71
  72                         touchpad_settings*      fSettings;
  73                         hardware_specs*         fSpecs;
  74
  75                         int8                            fSpeed;
  76                         int16                           fAreaWidth;
  77                         int16                           fAreaHeight;
  78
  79 private:
  80                         void                            _GetRawMovement(uint32 posX, uint32 posY);
  81                         void                            _ComputeAcceleration(int8 accel_factor);
  82
  83
  84                         bool                            fMovementMakerStarted;
  85
  86                         uint32                          fPreviousX;
  87                         uint32                          fPreviousY;
  88                         int32                           fDeltaSumX;
  89                         int32                           fDeltaSumY;
  90
  91                         int8                            fSmallMovement;
  92 };
  93
  94
  95 enum button_ids
  96 {
  97         kNoButton = 0x00,
  98         kLeftButton = 0x01,
  99         kRightButton = 0x02,
 100         kMiddleButton = 0x04
 101 };
 102
 103
 104 class TouchpadMovement : public MovementMaker {
 105 public:
 106                         void                            Init();
 107
 108                         status_t                        EventToMovement(touch_event *event,
 109                                                                         mouse_movement *movement);
 110
 111                         bool                            TapDragStarted() { return fTapdragStarted; }
 112                         bool                            WasEdgeMotion() { return fValidEdgeMotion; }
 113
 114                         void                            UpdateButtons(mouse_movement *movement);
 115
 116                         bigtime_t                       click_speed;
 117 private:
 118                         bool                            _EdgeMotion(mouse_movement *movement,
 119                                                                         touch_event *event, bool validStart);
 120         inline  void                            _NoTouchToMovement(touch_event *event,
 121                                                                         mouse_movement *movement);
 122         inline  void                            _MoveToMovement(touch_event *event,
 123                                                                         mouse_movement *movement);
 124         inline  bool                            _CheckScrollingToMovement(touch_event *event,
 125                                                                         mouse_movement *movement);
 126
 127                         bool                            fMovementStarted;
 128                         bool                            fScrollingStarted;
 129                         bool                            fTapStarted;
 130                         bigtime_t                       fTapTime;
 131                         int32                           fTapDeltaX;
 132                         int32                           fTapDeltaY;
 133                         int32                           fTapClicks;
 134                         bool                            fTapdragStarted;
 135
 136                         bool                            fValidEdgeMotion;
 137                         bigtime_t                       fLastEdgeMotion;
 138                         float                           fRestEdgeMotion;
 139
 140                         bool                            fDoubleClick;
 141
 142                         bigtime_t                       fClickLastTime;
 143                         int32                           fClickCount;
 144                         uint32                          fButtonsState;
 145 };
 146
 147
 148 #endif