What can you query against with SDL_HapticQuery?

Game Development
#1

Is there a comprehensive list? Because if there is, it’s not on the wiki.

https://wiki.libsdl.org/SDL_HapticQuery

This page only lists “SDL_HAPTIC_CONSTANT”. Which others are there? My controller for instance returns 0x100e. What does that mean?

#2

I looked in the source, SDL_haptic.h:

It seems we have

  1. SDL_HAPTIC_CONSTANT
  2. SDL_HAPTIC_SINE
  3. SDL_HAPTIC_LEFTRIGHT
  4. SDL_HAPTIC_TRIANGLE
  5. SDL_HAPTIC_SAWTOOTHUP
  6. SDL_HAPTIC_SAWTOOTHDOWN
  7. SDL_HAPTIC_RAMP
  8. SDL_HAPTIC_SPRING
  9. SDL_HAPTIC_DAMPER
  10. SDL_HAPTIC_INERTIA
  11. SDL_HAPTIC_FRICTION
  12. SDL_HAPTIC_CUSTOM
  13. SDL_HAPTIC_GAIN
  14. SDL_HAPTIC_AUTOCENTER
  15. SDL_HAPTIC_STATUS
  16. SDL_HAPTIC_PAUSE
#define SDL_HAPTIC_CONSTANT   (1u<<0)

/**
 *  \brief Sine wave effect supported.
 *
 *  Periodic haptic effect that simulates sine waves.
 *
 *  \sa SDL_HapticPeriodic
 */
#define SDL_HAPTIC_SINE       (1u<<1)

/**
 *  \brief Left/Right effect supported.
 *
 *  Haptic effect for direct control over high/low frequency motors.
 *
 *  \sa SDL_HapticLeftRight
 * \warning this value was SDL_HAPTIC_SQUARE right before 2.0.0 shipped. Sorry,
 *          we ran out of bits, and this is important for XInput devices.
 */
#define SDL_HAPTIC_LEFTRIGHT     (1u<<2)

/* !!! FIXME: put this back when we have more bits in 2.1 */
/* #define SDL_HAPTIC_SQUARE     (1<<2) */

/**
 *  \brief Triangle wave effect supported.
 *
 *  Periodic haptic effect that simulates triangular waves.
 *
 *  \sa SDL_HapticPeriodic
 */
#define SDL_HAPTIC_TRIANGLE   (1u<<3)

/**
 *  \brief Sawtoothup wave effect supported.
 *
 *  Periodic haptic effect that simulates saw tooth up waves.
 *
 *  \sa SDL_HapticPeriodic
 */
#define SDL_HAPTIC_SAWTOOTHUP (1u<<4)

/**
 *  \brief Sawtoothdown wave effect supported.
 *
 *  Periodic haptic effect that simulates saw tooth down waves.
 *
 *  \sa SDL_HapticPeriodic
 */
#define SDL_HAPTIC_SAWTOOTHDOWN (1u<<5)

/**
 *  \brief Ramp effect supported.
 *
 *  Ramp haptic effect.
 *
 *  \sa SDL_HapticRamp
 */
#define SDL_HAPTIC_RAMP       (1u<<6)

/**
 *  \brief Spring effect supported - uses axes position.
 *
 *  Condition haptic effect that simulates a spring.  Effect is based on the
 *  axes position.
 *
 *  \sa SDL_HapticCondition
 */
#define SDL_HAPTIC_SPRING     (1u<<7)

/**
 *  \brief Damper effect supported - uses axes velocity.
 *
 *  Condition haptic effect that simulates dampening.  Effect is based on the
 *  axes velocity.
 *
 *  \sa SDL_HapticCondition
 */
#define SDL_HAPTIC_DAMPER     (1u<<8)

/**
 *  \brief Inertia effect supported - uses axes acceleration.
 *
 *  Condition haptic effect that simulates inertia.  Effect is based on the axes
 *  acceleration.
 *
 *  \sa SDL_HapticCondition
 */
#define SDL_HAPTIC_INERTIA    (1u<<9)

/**
 *  \brief Friction effect supported - uses axes movement.
 *
 *  Condition haptic effect that simulates friction.  Effect is based on the
 *  axes movement.
 *
 *  \sa SDL_HapticCondition
 */
#define SDL_HAPTIC_FRICTION   (1u<<10)

/**
 *  \brief Custom effect is supported.
 *
 *  User defined custom haptic effect.
 */
#define SDL_HAPTIC_CUSTOM     (1u<<11)

/* @} *//* Haptic effects */

/* These last few are features the device has, not effects */

/**
 *  \brief Device can set global gain.
 *
 *  Device supports setting the global gain.
 *
 *  \sa SDL_HapticSetGain
 */
#define SDL_HAPTIC_GAIN       (1u<<12)

/**
 *  \brief Device can set autocenter.
 *
 *  Device supports setting autocenter.
 *
 *  \sa SDL_HapticSetAutocenter
 */
#define SDL_HAPTIC_AUTOCENTER (1u<<13)

/**
 *  \brief Device can be queried for effect status.
 *
 *  Device supports querying effect status.
 *
 *  \sa SDL_HapticGetEffectStatus
 */
#define SDL_HAPTIC_STATUS     (1u<<14)

/**
 *  \brief Device can be paused.
 *
 *  Devices supports being paused.
 *
 *  \sa SDL_HapticPause
 *  \sa SDL_HapticUnpause
 */
#define SDL_HAPTIC_PAUSE      (1u<<15)