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