SDL_haptic.h
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/*
Simple DirectMedia Layer
Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
/**
* \file SDL_haptic.h
*
* \brief The SDL haptic subsystem allows you to control haptic (force feedback)
* devices.
*
* The basic usage is as follows:
* - Initialize the subsystem (::SDL_INIT_HAPTIC).
* - Open a haptic device.
* - SDL_HapticOpen() to open from index.
* - SDL_HapticOpenFromJoystick() to open from an existing joystick.
* - Create an effect (::SDL_HapticEffect).
* - Upload the effect with SDL_HapticNewEffect().
* - Run the effect with SDL_HapticRunEffect().
* - (optional) Free the effect with SDL_HapticDestroyEffect().
* - Close the haptic device with SDL_HapticClose().
*
* \par Simple rumble example:
* \code
* SDL_Haptic *haptic;
*
* // Open the device
* haptic = SDL_HapticOpen( 0 );
* if (haptic == NULL)
* return -1;
*
* // Initialize simple rumble
* if (SDL_HapticRumbleInit( haptic ) != 0)
* return -1;
*
* // Play effect at 50% strength for 2 seconds
* if (SDL_HapticRumblePlay( haptic, 0.5, 2000 ) != 0)
* return -1;
* SDL_Delay( 2000 );
*
* // Clean up
* SDL_HapticClose( haptic );
* \endcode
*
* \par Complete example:
* \code
* int test_haptic( SDL_Joystick * joystick ) {
* SDL_Haptic *haptic;
* SDL_HapticEffect effect;
* int effect_id;
*
* // Open the device
* haptic = SDL_HapticOpenFromJoystick( joystick );
* if (haptic == NULL) return -1; // Most likely joystick isn't haptic
*
* // See if it can do sine waves
* if ((SDL_HapticQuery(haptic) & SDL_HAPTIC_SINE)==0) {
* SDL_HapticClose(haptic); // No sine effect
* return -1;
* }
*
* // Create the effect
* memset( &effect, 0, sizeof(SDL_HapticEffect) ); // 0 is safe default
* effect.type = SDL_HAPTIC_SINE;
* effect.periodic.direction.type = SDL_HAPTIC_POLAR; // Polar coordinates
* effect.periodic.direction.dir[0] = 18000; // Force comes from south
* effect.periodic.period = 1000; // 1000 ms
* effect.periodic.magnitude = 20000; // 20000/32767 strength
* effect.periodic.length = 5000; // 5 seconds long
* effect.periodic.attack_length = 1000; // Takes 1 second to get max strength
* effect.periodic.fade_length = 1000; // Takes 1 second to fade away
*
* // Upload the effect
* effect_id = SDL_HapticNewEffect( haptic, &effect );
*
* // Test the effect
* SDL_HapticRunEffect( haptic, effect_id, 1 );
* SDL_Delay( 5000); // Wait for the effect to finish
*
* // We destroy the effect, although closing the device also does this
* SDL_HapticDestroyEffect( haptic, effect_id );
*
* // Close the device
* SDL_HapticClose(haptic);
*
* return 0; // Success
* }
* \endcode
*/
#ifndef SDL_haptic_h_
#define SDL_haptic_h_
#include "SDL_stdinc.h"
#include "SDL_error.h"
#include "SDL_joystick.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/**
* \typedef SDL_Haptic
*
* \brief The haptic structure used to identify an SDL haptic.
*
* \sa SDL_HapticOpen
* \sa SDL_HapticOpenFromJoystick
* \sa SDL_HapticClose
*/
struct _SDL_Haptic;
typedef struct _SDL_Haptic SDL_Haptic;
/**
* \name Haptic features
*
* Different haptic features a device can have.
*/
/* @{ */
/**
* \name Haptic effects
*/
/* @{ */
/**
* \brief Constant effect supported.
*
* Constant haptic effect.
*
* \sa SDL_HapticCondition
*/
#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)
/**
* \name Direction encodings
*/
/* @{ */
/**
* \brief Uses polar coordinates for the direction.
*
* \sa SDL_HapticDirection
*/
#define SDL_HAPTIC_POLAR 0
/**
* \brief Uses cartesian coordinates for the direction.
*
* \sa SDL_HapticDirection
*/
#define SDL_HAPTIC_CARTESIAN 1
/**
* \brief Uses spherical coordinates for the direction.
*
* \sa SDL_HapticDirection
*/
#define SDL_HAPTIC_SPHERICAL 2
/* @} *//* Direction encodings */
/* @} *//* Haptic features */
/*
* Misc defines.
*/
/**
* \brief Used to play a device an infinite number of times.
*
* \sa SDL_HapticRunEffect
*/
#define SDL_HAPTIC_INFINITY 4294967295U
/**
* \brief Structure that represents a haptic direction.
*
* This is the direction where the force comes from,
* instead of the direction in which the force is exerted.
*
* Directions can be specified by:
* - ::SDL_HAPTIC_POLAR : Specified by polar coordinates.
* - ::SDL_HAPTIC_CARTESIAN : Specified by cartesian coordinates.
* - ::SDL_HAPTIC_SPHERICAL : Specified by spherical coordinates.
*
* Cardinal directions of the haptic device are relative to the positioning
* of the device. North is considered to be away from the user.
*
* The following diagram represents the cardinal directions:
* \verbatim
.--.
|__| .-------.
|=.| |.-----.|
|--| || ||
| | |'-----'|
|__|~')_____('
[ COMPUTER ]
North (0,-1)
^
|
|
(-1,0) West <----[ HAPTIC ]----> East (1,0)
|
|
v
South (0,1)
[ USER ]
\|||/
(o o)
---ooO-(_)-Ooo---
\endverbatim
*
* If type is ::SDL_HAPTIC_POLAR, direction is encoded by hundredths of a
* degree starting north and turning clockwise. ::SDL_HAPTIC_POLAR only uses
* the first \c dir parameter. The cardinal directions would be:
* - North: 0 (0 degrees)
* - East: 9000 (90 degrees)
* - South: 18000 (180 degrees)
* - West: 27000 (270 degrees)
*
* If type is ::SDL_HAPTIC_CARTESIAN, direction is encoded by three positions
* (X axis, Y axis and Z axis (with 3 axes)). ::SDL_HAPTIC_CARTESIAN uses
* the first three \c dir parameters. The cardinal directions would be:
* - North: 0,-1, 0
* - East: 1, 0, 0
* - South: 0, 1, 0
* - West: -1, 0, 0
*
* The Z axis represents the height of the effect if supported, otherwise
* it's unused. In cartesian encoding (1, 2) would be the same as (2, 4), you
* can use any multiple you want, only the direction matters.
*
* If type is ::SDL_HAPTIC_SPHERICAL, direction is encoded by two rotations.
* The first two \c dir parameters are used. The \c dir parameters are as
* follows (all values are in hundredths of degrees):
* - Degrees from (1, 0) rotated towards (0, 1).
* - Degrees towards (0, 0, 1) (device needs at least 3 axes).
*
*
* Example of force coming from the south with all encodings (force coming
* from the south means the user will have to pull the stick to counteract):
* \code
* SDL_HapticDirection direction;
*
* // Cartesian directions
* direction.type = SDL_HAPTIC_CARTESIAN; // Using cartesian direction encoding.
* direction.dir[0] = 0; // X position
* direction.dir[1] = 1; // Y position
* // Assuming the device has 2 axes, we don't need to specify third parameter.
*
* // Polar directions
* direction.type = SDL_HAPTIC_POLAR; // We'll be using polar direction encoding.
* direction.dir[0] = 18000; // Polar only uses first parameter
*
* // Spherical coordinates
* direction.type = SDL_HAPTIC_SPHERICAL; // Spherical encoding
* direction.dir[0] = 9000; // Since we only have two axes we don't need more parameters.
* \endcode
*
* \sa SDL_HAPTIC_POLAR
* \sa SDL_HAPTIC_CARTESIAN
* \sa SDL_HAPTIC_SPHERICAL
* \sa SDL_HapticEffect
* \sa SDL_HapticNumAxes
*/
typedef struct SDL_HapticDirection
{
Uint8 type; /**< The type of encoding. */
Sint32 dir[3]; /**< The encoded direction. */
} SDL_HapticDirection;
/**
* \brief A structure containing a template for a Constant effect.
*
* This struct is exclusively for the ::SDL_HAPTIC_CONSTANT effect.
*
* A constant effect applies a constant force in the specified direction
* to the joystick.
*
* \sa SDL_HAPTIC_CONSTANT
* \sa SDL_HapticEffect
*/
typedef struct SDL_HapticConstant
{
/* Header */
Uint16 type; /**< ::SDL_HAPTIC_CONSTANT */
SDL_HapticDirection direction; /**< Direction of the effect. */
/* Replay */
Uint32 length; /**< Duration of the effect. */
Uint16 delay; /**< Delay before starting the effect. */
/* Trigger */
Uint16 button; /**< Button that triggers the effect. */
Uint16 interval; /**< How soon it can be triggered again after button. */
/* Constant */
Sint16 level; /**< Strength of the constant effect. */
/* Envelope */
Uint16 attack_length; /**< Duration of the attack. */
Uint16 attack_level; /**< Level at the start of the attack. */
Uint16 fade_length; /**< Duration of the fade. */
Uint16 fade_level; /**< Level at the end of the fade. */
} SDL_HapticConstant;
/**
* \brief A structure containing a template for a Periodic effect.
*
* The struct handles the following effects:
* - ::SDL_HAPTIC_SINE
* - ::SDL_HAPTIC_LEFTRIGHT
* - ::SDL_HAPTIC_TRIANGLE
* - ::SDL_HAPTIC_SAWTOOTHUP
* - ::SDL_HAPTIC_SAWTOOTHDOWN
*
* A periodic effect consists in a wave-shaped effect that repeats itself
* over time. The type determines the shape of the wave and the parameters
* determine the dimensions of the wave.
*
* Phase is given by hundredth of a degree meaning that giving the phase a value
* of 9000 will displace it 25% of its period. Here are sample values:
* - 0: No phase displacement.
* - 9000: Displaced 25% of its period.
* - 18000: Displaced 50% of its period.
* - 27000: Displaced 75% of its period.
* - 36000: Displaced 100% of its period, same as 0, but 0 is preferred.
*
* Examples:
* \verbatim
SDL_HAPTIC_SINE
__ __ __ __
/ \ / \ / \ /
/ \__/ \__/ \__/
SDL_HAPTIC_SQUARE
__ __ __ __ __
| | | | | | | | | |
| |__| |__| |__| |__| |
SDL_HAPTIC_TRIANGLE
/\ /\ /\ /\ /\
/ \ / \ / \ / \ /
/ \/ \/ \/ \/
SDL_HAPTIC_SAWTOOTHUP
/| /| /| /| /| /| /|
/ | / | / | / | / | / | / |
/ |/ |/ |/ |/ |/ |/ |
SDL_HAPTIC_SAWTOOTHDOWN
\ |\ |\ |\ |\ |\ |\ |
\ | \ | \ | \ | \ | \ | \ |
\| \| \| \| \| \| \|
\endverbatim
*
* \sa SDL_HAPTIC_SINE
* \sa SDL_HAPTIC_LEFTRIGHT
* \sa SDL_HAPTIC_TRIANGLE
* \sa SDL_HAPTIC_SAWTOOTHUP
* \sa SDL_HAPTIC_SAWTOOTHDOWN
* \sa SDL_HapticEffect
*/
typedef struct SDL_HapticPeriodic
{
/* Header */
Uint16 type; /**< ::SDL_HAPTIC_SINE, ::SDL_HAPTIC_LEFTRIGHT,
::SDL_HAPTIC_TRIANGLE, ::SDL_HAPTIC_SAWTOOTHUP or
::SDL_HAPTIC_SAWTOOTHDOWN */
SDL_HapticDirection direction; /**< Direction of the effect. */
/* Replay */
Uint32 length; /**< Duration of the effect. */
Uint16 delay; /**< Delay before starting the effect. */
/* Trigger */
Uint16 button; /**< Button that triggers the effect. */
Uint16 interval; /**< How soon it can be triggered again after button. */
/* Periodic */
Uint16 period; /**< Period of the wave. */
Sint16 magnitude; /**< Peak value; if negative, equivalent to 180 degrees extra phase shift. */
Sint16 offset; /**< Mean value of the wave. */
Uint16 phase; /**< Positive phase shift given by hundredth of a degree. */
/* Envelope */
Uint16 attack_length; /**< Duration of the attack. */
Uint16 attack_level; /**< Level at the start of the attack. */
Uint16 fade_length; /**< Duration of the fade. */
Uint16 fade_level; /**< Level at the end of the fade. */
} SDL_HapticPeriodic;
/**
* \brief A structure containing a template for a Condition effect.
*
* The struct handles the following effects:
* - ::SDL_HAPTIC_SPRING: Effect based on axes position.
* - ::SDL_HAPTIC_DAMPER: Effect based on axes velocity.
* - ::SDL_HAPTIC_INERTIA: Effect based on axes acceleration.
* - ::SDL_HAPTIC_FRICTION: Effect based on axes movement.
*
* Direction is handled by condition internals instead of a direction member.
* The condition effect specific members have three parameters. The first
* refers to the X axis, the second refers to the Y axis and the third
* refers to the Z axis. The right terms refer to the positive side of the
* axis and the left terms refer to the negative side of the axis. Please
* refer to the ::SDL_HapticDirection diagram for which side is positive and
* which is negative.
*
* \sa SDL_HapticDirection
* \sa SDL_HAPTIC_SPRING
* \sa SDL_HAPTIC_DAMPER
* \sa SDL_HAPTIC_INERTIA
* \sa SDL_HAPTIC_FRICTION
* \sa SDL_HapticEffect
*/
typedef struct SDL_HapticCondition
{
/* Header */
Uint16 type; /**< ::SDL_HAPTIC_SPRING, ::SDL_HAPTIC_DAMPER,
::SDL_HAPTIC_INERTIA or ::SDL_HAPTIC_FRICTION */
SDL_HapticDirection direction; /**< Direction of the effect - Not used ATM. */
/* Replay */
Uint32 length; /**< Duration of the effect. */
Uint16 delay; /**< Delay before starting the effect. */
/* Trigger */
Uint16 button; /**< Button that triggers the effect. */
Uint16 interval; /**< How soon it can be triggered again after button. */
/* Condition */
Uint16 right_sat[3]; /**< Level when joystick is to the positive side; max 0xFFFF. */
Uint16 left_sat[3]; /**< Level when joystick is to the negative side; max 0xFFFF. */
Sint16 right_coeff[3]; /**< How fast to increase the force towards the positive side. */
Sint16 left_coeff[3]; /**< How fast to increase the force towards the negative side. */
Uint16 deadband[3]; /**< Size of the dead zone; max 0xFFFF: whole axis-range when 0-centered. */
Sint16 center[3]; /**< Position of the dead zone. */
} SDL_HapticCondition;
/**
* \brief A structure containing a template for a Ramp effect.
*
* This struct is exclusively for the ::SDL_HAPTIC_RAMP effect.
*
* The ramp effect starts at start strength and ends at end strength.
* It augments in linear fashion. If you use attack and fade with a ramp
* the effects get added to the ramp effect making the effect become
* quadratic instead of linear.
*
* \sa SDL_HAPTIC_RAMP
* \sa SDL_HapticEffect
*/
typedef struct SDL_HapticRamp
{
/* Header */
Uint16 type; /**< ::SDL_HAPTIC_RAMP */
SDL_HapticDirection direction; /**< Direction of the effect. */
/* Replay */
Uint32 length; /**< Duration of the effect. */
Uint16 delay; /**< Delay before starting the effect. */
/* Trigger */
Uint16 button; /**< Button that triggers the effect. */
Uint16 interval; /**< How soon it can be triggered again after button. */
/* Ramp */
Sint16 start; /**< Beginning strength level. */
Sint16 end; /**< Ending strength level. */
/* Envelope */
Uint16 attack_length; /**< Duration of the attack. */
Uint16 attack_level; /**< Level at the start of the attack. */
Uint16 fade_length; /**< Duration of the fade. */
Uint16 fade_level; /**< Level at the end of the fade. */
} SDL_HapticRamp;
/**
* \brief A structure containing a template for a Left/Right effect.
*
* This struct is exclusively for the ::SDL_HAPTIC_LEFTRIGHT effect.
*
* The Left/Right effect is used to explicitly control the large and small
* motors, commonly found in modern game controllers. One motor is high
* frequency, the other is low frequency.
*
* \sa SDL_HAPTIC_LEFTRIGHT
* \sa SDL_HapticEffect
*/
typedef struct SDL_HapticLeftRight
{
/* Header */
Uint16 type; /**< ::SDL_HAPTIC_LEFTRIGHT */
/* Replay */
Uint32 length; /**< Duration of the effect. */
/* Rumble */
Uint16 large_magnitude; /**< Control of the large controller motor. */
Uint16 small_magnitude; /**< Control of the small controller motor. */
} SDL_HapticLeftRight;
/**
* \brief A structure containing a template for the ::SDL_HAPTIC_CUSTOM effect.
*
* This struct is exclusively for the ::SDL_HAPTIC_CUSTOM effect.
*
* A custom force feedback effect is much like a periodic effect, where the
* application can define its exact shape. You will have to allocate the
* data yourself. Data should consist of channels * samples Uint16 samples.
*
* If channels is one, the effect is rotated using the defined direction.
* Otherwise it uses the samples in data for the different axes.
*
* \sa SDL_HAPTIC_CUSTOM
* \sa SDL_HapticEffect
*/
typedef struct SDL_HapticCustom
{
/* Header */
Uint16 type; /**< ::SDL_HAPTIC_CUSTOM */
SDL_HapticDirection direction; /**< Direction of the effect. */
/* Replay */
Uint32 length; /**< Duration of the effect. */
Uint16 delay; /**< Delay before starting the effect. */
/* Trigger */
Uint16 button; /**< Button that triggers the effect. */
Uint16 interval; /**< How soon it can be triggered again after button. */
/* Custom */
Uint8 channels; /**< Axes to use, minimum of one. */
Uint16 period; /**< Sample periods. */
Uint16 samples; /**< Amount of samples. */
Uint16 *data; /**< Should contain channels*samples items. */
/* Envelope */
Uint16 attack_length; /**< Duration of the attack. */
Uint16 attack_level; /**< Level at the start of the attack. */
Uint16 fade_length; /**< Duration of the fade. */
Uint16 fade_level; /**< Level at the end of the fade. */
} SDL_HapticCustom;
/**
* \brief The generic template for any haptic effect.
*
* All values max at 32767 (0x7FFF). Signed values also can be negative.
* Time values unless specified otherwise are in milliseconds.
*
* You can also pass ::SDL_HAPTIC_INFINITY to length instead of a 0-32767
* value. Neither delay, interval, attack_length nor fade_length support
* ::SDL_HAPTIC_INFINITY. Fade will also not be used since effect never ends.
*
* Additionally, the ::SDL_HAPTIC_RAMP effect does not support a duration of
* ::SDL_HAPTIC_INFINITY.
*
* Button triggers may not be supported on all devices, it is advised to not
* use them if possible. Buttons start at index 1 instead of index 0 like
* the joystick.
*
* If both attack_length and fade_level are 0, the envelope is not used,
* otherwise both values are used.
*
* Common parts:
* \code
* // Replay - All effects have this
* Uint32 length; // Duration of effect (ms).
* Uint16 delay; // Delay before starting effect.
*
* // Trigger - All effects have this
* Uint16 button; // Button that triggers effect.
* Uint16 interval; // How soon before effect can be triggered again.
*
* // Envelope - All effects except condition effects have this
* Uint16 attack_length; // Duration of the attack (ms).
* Uint16 attack_level; // Level at the start of the attack.
* Uint16 fade_length; // Duration of the fade out (ms).
* Uint16 fade_level; // Level at the end of the fade.
* \endcode
*
*
* Here we have an example of a constant effect evolution in time:
* \verbatim
Strength
^
|
| effect level --> _________________
| / \
| / \
| / \
| / \
| attack_level --> | \
| | | <--- fade_level
|
+--------------------------------------------------> Time
[--] [---]
attack_length fade_length
[------------------][-----------------------]
delay length
\endverbatim
*
* Note either the attack_level or the fade_level may be above the actual
* effect level.
*
* \sa SDL_HapticConstant
* \sa SDL_HapticPeriodic
* \sa SDL_HapticCondition
* \sa SDL_HapticRamp
* \sa SDL_HapticLeftRight
* \sa SDL_HapticCustom
*/
typedef union SDL_HapticEffect
{
/* Common for all force feedback effects */
Uint16 type; /**< Effect type. */
SDL_HapticConstant constant; /**< Constant effect. */
SDL_HapticPeriodic periodic; /**< Periodic effect. */
SDL_HapticCondition condition; /**< Condition effect. */
SDL_HapticRamp ramp; /**< Ramp effect. */
SDL_HapticLeftRight leftright; /**< Left/Right effect. */
SDL_HapticCustom custom; /**< Custom effect. */
} SDL_HapticEffect;
/* Function prototypes */
/**
* \brief Count the number of haptic devices attached to the system.
*
* \return Number of haptic devices detected on the system.
*/
extern DECLSPEC int SDLCALL SDL_NumHaptics(void);
/**
* \brief Get the implementation dependent name of a haptic device.
*
* This can be called before any joysticks are opened.
* If no name can be found, this function returns NULL.
*
* \param device_index Index of the device to get its name.
* \return Name of the device or NULL on error.
*
* \sa SDL_NumHaptics
*/
extern DECLSPEC const char *SDLCALL SDL_HapticName(int device_index);
/**
* \brief Opens a haptic device for use.
*
* The index passed as an argument refers to the N'th haptic device on this
* system.
*
* When opening a haptic device, its gain will be set to maximum and
* autocenter will be disabled. To modify these values use
* SDL_HapticSetGain() and SDL_HapticSetAutocenter().
*
* \param device_index Index of the device to open.
* \return Device identifier or NULL on error.
*
* \sa SDL_HapticIndex
* \sa SDL_HapticOpenFromMouse
* \sa SDL_HapticOpenFromJoystick
* \sa SDL_HapticClose
* \sa SDL_HapticSetGain
* \sa SDL_HapticSetAutocenter
* \sa SDL_HapticPause
* \sa SDL_HapticStopAll
*/
extern DECLSPEC SDL_Haptic *SDLCALL SDL_HapticOpen(int device_index);
/**
* \brief Checks if the haptic device at index has been opened.
*
* \param device_index Index to check to see if it has been opened.
* \return 1 if it has been opened or 0 if it hasn't.
*
* \sa SDL_HapticOpen
* \sa SDL_HapticIndex
*/
extern DECLSPEC int SDLCALL SDL_HapticOpened(int device_index);
/**
* \brief Gets the index of a haptic device.
*
* \param haptic Haptic device to get the index of.
* \return The index of the haptic device or -1 on error.
*
* \sa SDL_HapticOpen
* \sa SDL_HapticOpened
*/
extern DECLSPEC int SDLCALL SDL_HapticIndex(SDL_Haptic * haptic);
/**
* \brief Gets whether or not the current mouse has haptic capabilities.
*
* \return SDL_TRUE if the mouse is haptic, SDL_FALSE if it isn't.
*
* \sa SDL_HapticOpenFromMouse
*/
extern DECLSPEC int SDLCALL SDL_MouseIsHaptic(void);
/**
* \brief Tries to open a haptic device from the current mouse.
*
* \return The haptic device identifier or NULL on error.
*
* \sa SDL_MouseIsHaptic
* \sa SDL_HapticOpen
*/
extern DECLSPEC SDL_Haptic *SDLCALL SDL_HapticOpenFromMouse(void);
/**
* \brief Checks to see if a joystick has haptic features.
*
* \param joystick Joystick to test for haptic capabilities.
* \return SDL_TRUE if the joystick is haptic, SDL_FALSE if it isn't
* or -1 if an error occurred.
*
* \sa SDL_HapticOpenFromJoystick
*/
extern DECLSPEC int SDLCALL SDL_JoystickIsHaptic(SDL_Joystick * joystick);
/**
* \brief Opens a haptic device for use from a joystick device.
*
* You must still close the haptic device separately. It will not be closed
* with the joystick.
*
* When opening from a joystick you should first close the haptic device before
* closing the joystick device. If not, on some implementations the haptic
* device will also get unallocated and you'll be unable to use force feedback
* on that device.
*
* \param joystick Joystick to create a haptic device from.
* \return A valid haptic device identifier on success or NULL on error.
*
* \sa SDL_HapticOpen
* \sa SDL_HapticClose
*/
extern DECLSPEC SDL_Haptic *SDLCALL SDL_HapticOpenFromJoystick(SDL_Joystick *
joystick);
/**
* \brief Closes a haptic device previously opened with SDL_HapticOpen().
*
* \param haptic Haptic device to close.
*/
extern DECLSPEC void SDLCALL SDL_HapticClose(SDL_Haptic * haptic);
/**
* \brief Returns the number of effects a haptic device can store.
*
* On some platforms this isn't fully supported, and therefore is an
* approximation. Always check to see if your created effect was actually
* created and do not rely solely on SDL_HapticNumEffects().
*
* \param haptic The haptic device to query effect max.
* \return The number of effects the haptic device can store or
* -1 on error.
*
* \sa SDL_HapticNumEffectsPlaying
* \sa SDL_HapticQuery
*/
extern DECLSPEC int SDLCALL SDL_HapticNumEffects(SDL_Haptic * haptic);
/**
* \brief Returns the number of effects a haptic device can play at the same
* time.
*
* This is not supported on all platforms, but will always return a value.
* Added here for the sake of completeness.
*
* \param haptic The haptic device to query maximum playing effects.
* \return The number of effects the haptic device can play at the same time
* or -1 on error.
*
* \sa SDL_HapticNumEffects
* \sa SDL_HapticQuery
*/
extern DECLSPEC int SDLCALL SDL_HapticNumEffectsPlaying(SDL_Haptic * haptic);
/**
* \brief Gets the haptic device's supported features in bitwise manner.
*
* Example:
* \code
* if (SDL_HapticQuery(haptic) & SDL_HAPTIC_CONSTANT) {
* printf("We have constant haptic effect!\n");
* }
* \endcode
*
* \param haptic The haptic device to query.
* \return Haptic features in bitwise manner (OR'd).
*
* \sa SDL_HapticNumEffects
* \sa SDL_HapticEffectSupported
*/
extern DECLSPEC unsigned int SDLCALL SDL_HapticQuery(SDL_Haptic * haptic);
/**
* \brief Gets the number of haptic axes the device has.
*
* \sa SDL_HapticDirection
*/
extern DECLSPEC int SDLCALL SDL_HapticNumAxes(SDL_Haptic * haptic);
/**
* \brief Checks to see if effect is supported by haptic.
*
* \param haptic Haptic device to check on.
* \param effect Effect to check to see if it is supported.
* \return SDL_TRUE if effect is supported, SDL_FALSE if it isn't or -1 on error.
*
* \sa SDL_HapticQuery
* \sa SDL_HapticNewEffect
*/
extern DECLSPEC int SDLCALL SDL_HapticEffectSupported(SDL_Haptic * haptic,
SDL_HapticEffect *
effect);
/**
* \brief Creates a new haptic effect on the device.
*
* \param haptic Haptic device to create the effect on.
* \param effect Properties of the effect to create.
* \return The identifier of the effect on success or -1 on error.
*
* \sa SDL_HapticUpdateEffect
* \sa SDL_HapticRunEffect
* \sa SDL_HapticDestroyEffect
*/
extern DECLSPEC int SDLCALL SDL_HapticNewEffect(SDL_Haptic * haptic,
SDL_HapticEffect * effect);
/**
* \brief Updates the properties of an effect.
*
* Can be used dynamically, although behavior when dynamically changing
* direction may be strange. Specifically the effect may reupload itself
* and start playing from the start. You cannot change the type either when
* running SDL_HapticUpdateEffect().
*
* \param haptic Haptic device that has the effect.
* \param effect Identifier of the effect to update.
* \param data New effect properties to use.
* \return 0 on success or -1 on error.
*
* \sa SDL_HapticNewEffect
* \sa SDL_HapticRunEffect
* \sa SDL_HapticDestroyEffect
*/
extern DECLSPEC int SDLCALL SDL_HapticUpdateEffect(SDL_Haptic * haptic,
int effect,
SDL_HapticEffect * data);
/**
* \brief Runs the haptic effect on its associated haptic device.
*
* If iterations are ::SDL_HAPTIC_INFINITY, it'll run the effect over and over
* repeating the envelope (attack and fade) every time. If you only want the
* effect to last forever, set ::SDL_HAPTIC_INFINITY in the effect's length
* parameter.
*
* \param haptic Haptic device to run the effect on.
* \param effect Identifier of the haptic effect to run.
* \param iterations Number of iterations to run the effect. Use
* ::SDL_HAPTIC_INFINITY for infinity.
* \return 0 on success or -1 on error.
*
* \sa SDL_HapticStopEffect
* \sa SDL_HapticDestroyEffect
* \sa SDL_HapticGetEffectStatus
*/
extern DECLSPEC int SDLCALL SDL_HapticRunEffect(SDL_Haptic * haptic,
int effect,
Uint32 iterations);
/**
* \brief Stops the haptic effect on its associated haptic device.
*
* \param haptic Haptic device to stop the effect on.
* \param effect Identifier of the effect to stop.
* \return 0 on success or -1 on error.
*
* \sa SDL_HapticRunEffect
* \sa SDL_HapticDestroyEffect
*/
extern DECLSPEC int SDLCALL SDL_HapticStopEffect(SDL_Haptic * haptic,
int effect);
/**
* \brief Destroys a haptic effect on the device.
*
* This will stop the effect if it's running. Effects are automatically
* destroyed when the device is closed.
*
* \param haptic Device to destroy the effect on.
* \param effect Identifier of the effect to destroy.
*
* \sa SDL_HapticNewEffect
*/
extern DECLSPEC void SDLCALL SDL_HapticDestroyEffect(SDL_Haptic * haptic,
int effect);
/**
* \brief Gets the status of the current effect on the haptic device.
*
* Device must support the ::SDL_HAPTIC_STATUS feature.
*
* \param haptic Haptic device to query the effect status on.
* \param effect Identifier of the effect to query its status.
* \return 0 if it isn't playing, 1 if it is playing or -1 on error.
*
* \sa SDL_HapticRunEffect
* \sa SDL_HapticStopEffect
*/
extern DECLSPEC int SDLCALL SDL_HapticGetEffectStatus(SDL_Haptic * haptic,
int effect);
/**
* \brief Sets the global gain of the device.
*
* Device must support the ::SDL_HAPTIC_GAIN feature.
*
* The user may specify the maximum gain by setting the environment variable
* SDL_HAPTIC_GAIN_MAX which should be between 0 and 100. All calls to
* SDL_HapticSetGain() will scale linearly using SDL_HAPTIC_GAIN_MAX as the
* maximum.
*
* \param haptic Haptic device to set the gain on.
* \param gain Value to set the gain to, should be between 0 and 100.
* \return 0 on success or -1 on error.
*
* \sa SDL_HapticQuery
*/
extern DECLSPEC int SDLCALL SDL_HapticSetGain(SDL_Haptic * haptic, int gain);
/**
* \brief Sets the global autocenter of the device.
*
* Autocenter should be between 0 and 100. Setting it to 0 will disable
* autocentering.
*
* Device must support the ::SDL_HAPTIC_AUTOCENTER feature.
*
* \param haptic Haptic device to set autocentering on.
* \param autocenter Value to set autocenter to, 0 disables autocentering.
* \return 0 on success or -1 on error.
*
* \sa SDL_HapticQuery
*/
extern DECLSPEC int SDLCALL SDL_HapticSetAutocenter(SDL_Haptic * haptic,
int autocenter);
/**
* \brief Pauses a haptic device.
*
* Device must support the ::SDL_HAPTIC_PAUSE feature. Call
* SDL_HapticUnpause() to resume playback.
*
* Do not modify the effects nor add new ones while the device is paused.
* That can cause all sorts of weird errors.
*
* \param haptic Haptic device to pause.
* \return 0 on success or -1 on error.
*
* \sa SDL_HapticUnpause
*/
extern DECLSPEC int SDLCALL SDL_HapticPause(SDL_Haptic * haptic);
/**
* \brief Unpauses a haptic device.
*
* Call to unpause after SDL_HapticPause().
*
* \param haptic Haptic device to unpause.
* \return 0 on success or -1 on error.
*
* \sa SDL_HapticPause
*/
extern DECLSPEC int SDLCALL SDL_HapticUnpause(SDL_Haptic * haptic);
/**
* \brief Stops all the currently playing effects on a haptic device.
*
* \param haptic Haptic device to stop.
* \return 0 on success or -1 on error.
*/
extern DECLSPEC int SDLCALL SDL_HapticStopAll(SDL_Haptic * haptic);
/**
* \brief Checks to see if rumble is supported on a haptic device.
*
* \param haptic Haptic device to check to see if it supports rumble.
* \return SDL_TRUE if effect is supported, SDL_FALSE if it isn't or -1 on error.
*
* \sa SDL_HapticRumbleInit
* \sa SDL_HapticRumblePlay
* \sa SDL_HapticRumbleStop
*/
extern DECLSPEC int SDLCALL SDL_HapticRumbleSupported(SDL_Haptic * haptic);
/**
* \brief Initializes the haptic device for simple rumble playback.
*
* \param haptic Haptic device to initialize for simple rumble playback.
* \return 0 on success or -1 on error.
*
* \sa SDL_HapticOpen
* \sa SDL_HapticRumbleSupported
* \sa SDL_HapticRumblePlay
* \sa SDL_HapticRumbleStop
*/
extern DECLSPEC int SDLCALL SDL_HapticRumbleInit(SDL_Haptic * haptic);
/**
* \brief Runs simple rumble on a haptic device
*
* \param haptic Haptic device to play rumble effect on.
* \param strength Strength of the rumble to play as a 0-1 float value.
* \param length Length of the rumble to play in milliseconds.
* \return 0 on success or -1 on error.
*
* \sa SDL_HapticRumbleSupported
* \sa SDL_HapticRumbleInit
* \sa SDL_HapticRumbleStop
*/
extern DECLSPEC int SDLCALL SDL_HapticRumblePlay(SDL_Haptic * haptic, float strength, Uint32 length );
/**
* \brief Stops the simple rumble on a haptic device.
*
* \param haptic Haptic to stop the rumble on.
* \return 0 on success or -1 on error.
*
* \sa SDL_HapticRumbleSupported
* \sa SDL_HapticRumbleInit
* \sa SDL_HapticRumblePlay
*/
extern DECLSPEC int SDLCALL SDL_HapticRumbleStop(SDL_Haptic * haptic);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* SDL_haptic_h_ */
/* vi: set ts=4 sw=4 expandtab: */
SDL_HapticConstant::type
Uint16 type
Definition: SDL_haptic.h:460
SDL_HapticPeriodic::period
Uint16 period
Definition: SDL_haptic.h:555
SDL_HapticDirection
Structure that represents a haptic direction.
Definition: SDL_haptic.h:439
SDL_HapticCondition::type
Uint16 type
Definition: SDL_haptic.h:594
SDL_HapticGetEffectStatus
int SDL_HapticGetEffectStatus(SDL_Haptic *haptic, int effect)
Gets the status of the current effect on the haptic device.
Definition: SDL_haptic.c:604
SDL_HapticCondition::delay
Uint16 delay
Definition: SDL_haptic.h:600
SDL_HapticConstant::interval
Uint16 interval
Definition: SDL_haptic.h:469
SDL_HapticPeriodic::type
Uint16 type
Definition: SDL_haptic.h:541
SDL_HapticConstant::fade_level
Uint16 fade_level
Definition: SDL_haptic.h:478
SDL_HapticUpdateEffect
int SDL_HapticUpdateEffect(SDL_Haptic *haptic, int effect, SDL_HapticEffect *data)
Updates the properties of an effect.
Definition: SDL_haptic.c:521
SDL_joystick.h
SDL_HapticClose
void SDL_HapticClose(SDL_Haptic *haptic)
Closes a haptic device previously opened with SDL_HapticOpen().
Definition: SDL_haptic.c:335
SDL_HapticPause
int SDL_HapticPause(SDL_Haptic *haptic)
Pauses a haptic device.
Definition: SDL_haptic.c:691
SDL_HapticPeriodic
A structure containing a template for a Periodic effect.
Definition: SDL_haptic.h:538
SDL_HapticCondition::direction
SDL_HapticDirection direction
Definition: SDL_haptic.h:596
SDL_HapticPeriodic::length
Uint32 length
Definition: SDL_haptic.h:547
SDL_HapticEffect::custom
SDL_HapticCustom custom
Definition: SDL_haptic.h:798
_SDL_Haptic
Definition: SDL_syshaptic.h:39
SDL_HapticRamp::end
Sint16 end
Definition: SDL_haptic.h:644
SDL_HapticCondition::button
Uint16 button
Definition: SDL_haptic.h:603
SDL_HapticRumbleInit
int SDL_HapticRumbleInit(SDL_Haptic *haptic)
Initializes the haptic device for simple rumble playback.
Definition: SDL_haptic.c:752
SDL_HapticRamp::fade_level
Uint16 fade_level
Definition: SDL_haptic.h:650
SDL_HapticRamp::type
Uint16 type
Definition: SDL_haptic.h:631
SDL_HapticEffect::ramp
SDL_HapticRamp ramp
Definition: SDL_haptic.h:796
SDL_HapticCondition::interval
Uint16 interval
Definition: SDL_haptic.h:604
SDL_HapticOpen
SDL_Haptic * SDL_HapticOpen(int device_index)
Opens a haptic device for use.
Definition: SDL_haptic.c:108
SDL_HapticCondition
A structure containing a template for a Condition effect.
Definition: SDL_haptic.h:591
data
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: SDL_opengl.h:1974
SDL_HapticLeftRight::type
Uint16 type
Definition: SDL_haptic.h:668
SDL_HapticPeriodic::fade_level
Uint16 fade_level
Definition: SDL_haptic.h:564
SDL_HapticConstant::attack_length
Uint16 attack_length
Definition: SDL_haptic.h:475
iterations
static int iterations
Definition: testsprite2.c:43
SDL_HapticLeftRight::small_magnitude
Uint16 small_magnitude
Definition: SDL_haptic.h:675
SDL_HapticPeriodic::button
Uint16 button
Definition: SDL_haptic.h:551
Uint32
uint32_t Uint32
Definition: SDL_stdinc.h:181
SDL_HapticCustom::fade_length
Uint16 fade_length
Definition: SDL_haptic.h:716
SDL_HapticDirection::type
Uint8 type
Definition: SDL_haptic.h:441
begin_code.h
SDL_HapticPeriodic::attack_level
Uint16 attack_level
Definition: SDL_haptic.h:562
SDL_HapticCustom::data
Uint16 * data
Definition: SDL_haptic.h:711
SDL_HapticRamp::length
Uint32 length
Definition: SDL_haptic.h:635
SDL_HapticConstant
A structure containing a template for a Constant effect.
Definition: SDL_haptic.h:457
SDL_HapticSetGain
int SDL_HapticSetGain(SDL_Haptic *haptic, int gain)
Sets the global gain of the device.
Definition: SDL_haptic.c:621
SDL_HapticRamp::interval
Uint16 interval
Definition: SDL_haptic.h:640
SDL_HapticNewEffect
int SDL_HapticNewEffect(SDL_Haptic *haptic, SDL_HapticEffect *effect)
Creates a new haptic effect on the device.
Definition: SDL_haptic.c:471
SDL_HapticPeriodic::fade_length
Uint16 fade_length
Definition: SDL_haptic.h:563
SDL_HapticOpenFromMouse
SDL_Haptic * SDL_HapticOpenFromMouse(void)
Tries to open a haptic device from the current mouse.
Definition: SDL_haptic.c:226
SDL_HapticDestroyEffect
void SDL_HapticDestroyEffect(SDL_Haptic *haptic, int effect)
Destroys a haptic effect on the device.
Definition: SDL_haptic.c:586
SDL_HapticEffect::condition
SDL_HapticCondition condition
Definition: SDL_haptic.h:795
SDL_HapticLeftRight
A structure containing a template for a Left/Right effect.
Definition: SDL_haptic.h:665
SDL_HapticRumbleStop
int SDL_HapticRumbleStop(SDL_Haptic *haptic)
Stops the simple rumble on a haptic device.
Definition: SDL_haptic.c:836
DECLSPEC
#define DECLSPEC
Definition: SDL_internal.h:44
SDL_HapticConstant::level
Sint16 level
Definition: SDL_haptic.h:472
SDL_HapticEffect
The generic template for any haptic effect.
Definition: SDL_haptic.h:789
SDL_HapticConstant::delay
Uint16 delay
Definition: SDL_haptic.h:465
SDL_HapticConstant::attack_level
Uint16 attack_level
Definition: SDL_haptic.h:476
close_code.h
SDL_HapticCondition::length
Uint32 length
Definition: SDL_haptic.h:599
SDL_HapticPeriodic::offset
Sint16 offset
Definition: SDL_haptic.h:557
Uint8
uint8_t Uint8
Definition: SDL_stdinc.h:157
SDL_HapticCustom::button
Uint16 button
Definition: SDL_haptic.h:704
SDL_HapticCustom::period
Uint16 period
Definition: SDL_haptic.h:709
SDL_HapticNumEffectsPlaying
int SDL_HapticNumEffectsPlaying(SDL_Haptic *haptic)
Returns the number of effects a haptic device can play at the same time.
Definition: SDL_haptic.c:415
SDL_HapticCustom::fade_level
Uint16 fade_level
Definition: SDL_haptic.h:717
SDL_HapticEffect::constant
SDL_HapticConstant constant
Definition: SDL_haptic.h:793
SDL_HapticEffectSupported
int SDL_HapticEffectSupported(SDL_Haptic *haptic, SDL_HapticEffect *effect)
Checks to see if effect is supported by haptic.
Definition: SDL_haptic.c:456
SDL_HapticDirection::dir
Sint32 dir[3]
Definition: SDL_haptic.h:442
SDL_HapticCustom::length
Uint32 length
Definition: SDL_haptic.h:700
SDL_HapticCustom::type
Uint16 type
Definition: SDL_haptic.h:696
SDL_HapticConstant::length
Uint32 length
Definition: SDL_haptic.h:464
SDL_HapticRamp::direction
SDL_HapticDirection direction
Definition: SDL_haptic.h:632
Sint32
int32_t Sint32
Definition: SDL_stdinc.h:175
SDL_HapticConstant::button
Uint16 button
Definition: SDL_haptic.h:468
SDL_HapticEffect::type
Uint16 type
Definition: SDL_haptic.h:792
SDL_HapticNumEffects
int SDL_HapticNumEffects(SDL_Haptic *haptic)
Returns the number of effects a haptic device can store.
Definition: SDL_haptic.c:401
SDL_HapticIndex
int SDL_HapticIndex(SDL_Haptic *haptic)
Gets the index of a haptic device.
Definition: SDL_haptic.c:200
SDL_HapticName
const char * SDL_HapticName(int device_index)
Get the implementation dependent name of a haptic device.
Definition: SDL_haptic.c:93
SDL_HapticRamp
A structure containing a template for a Ramp effect.
Definition: SDL_haptic.h:628
SDL_HapticRamp::attack_length
Uint16 attack_length
Definition: SDL_haptic.h:647
SDL_HapticRunEffect
int SDL_HapticRunEffect(SDL_Haptic *haptic, int effect, Uint32 iterations)
Runs the haptic effect on its associated haptic device.
Definition: SDL_haptic.c:549
SDL_HapticRamp::fade_length
Uint16 fade_length
Definition: SDL_haptic.h:649
SDL_HapticRamp::delay
Uint16 delay
Definition: SDL_haptic.h:636
SDL_JoystickIsHaptic
int SDL_JoystickIsHaptic(SDL_Joystick *joystick)
Checks to see if a joystick has haptic features.
Definition: SDL_haptic.c:245
haptic
static SDL_Haptic * haptic
Definition: testhaptic.c:25
SDL_HapticCustom::delay
Uint16 delay
Definition: SDL_haptic.h:701
SDL_HapticRumbleSupported
int SDL_HapticRumbleSupported(SDL_Haptic *haptic)
Checks to see if rumble is supported on a haptic device.
Definition: SDL_haptic.c:738
SDL_HapticRumblePlay
int SDL_HapticRumblePlay(SDL_Haptic *haptic, float strength, Uint32 length)
Runs simple rumble on a haptic device.
Definition: SDL_haptic.c:793
SDL_HapticPeriodic::direction
SDL_HapticDirection direction
Definition: SDL_haptic.h:544
SDL_HapticEffect::leftright
SDL_HapticLeftRight leftright
Definition: SDL_haptic.h:797
SDL_HapticPeriodic::magnitude
Sint16 magnitude
Definition: SDL_haptic.h:556
SDL_stdinc.h
SDL_HapticCustom::attack_level
Uint16 attack_level
Definition: SDL_haptic.h:715
SDL_HapticCustom::samples
Uint16 samples
Definition: SDL_haptic.h:710
SDL_HapticSetAutocenter
int SDL_HapticSetAutocenter(SDL_Haptic *haptic, int autocenter)
Sets the global autocenter of the device.
Definition: SDL_haptic.c:666
SDL_HapticPeriodic::attack_length
Uint16 attack_length
Definition: SDL_haptic.h:561
SDL_HapticRamp::start
Sint16 start
Definition: SDL_haptic.h:643
SDL_HapticNumAxes
int SDL_HapticNumAxes(SDL_Haptic *haptic)
Gets the number of haptic axes the device has.
Definition: SDL_haptic.c:443
SDL_HapticPeriodic::delay
Uint16 delay
Definition: SDL_haptic.h:548
SDL_HapticStopEffect
int SDL_HapticStopEffect(SDL_Haptic *haptic, int effect)
Stops the haptic effect on its associated haptic device.
Definition: SDL_haptic.c:568
Uint16
uint16_t Uint16
Definition: SDL_stdinc.h:169
SDL_HapticPeriodic::interval
Uint16 interval
Definition: SDL_haptic.h:552
SDL_MouseIsHaptic
int SDL_MouseIsHaptic(void)
Gets whether or not the current mouse has haptic capabilities.
Definition: SDL_haptic.c:214
SDL_HapticCustom
A structure containing a template for the SDL_HAPTIC_CUSTOM effect.
Definition: SDL_haptic.h:693
SDL_HapticQuery
unsigned int SDL_HapticQuery(SDL_Haptic *haptic)
Gets the haptic device&#39;s supported features in bitwise manner.
Definition: SDL_haptic.c:429
SDL_HapticOpenFromJoystick
SDL_Haptic * SDL_HapticOpenFromJoystick(SDL_Joystick *joystick)
Opens a haptic device for use from a joystick device.
Definition: SDL_haptic.c:269
length
GLuint GLsizei GLsizei * length
Definition: SDL_opengl_glext.h:669
SDL_HapticLeftRight::large_magnitude
Uint16 large_magnitude
Definition: SDL_haptic.h:674
SDL_HapticEffect::periodic
SDL_HapticPeriodic periodic
Definition: SDL_haptic.h:794
SDL_HapticRamp::attack_level
Uint16 attack_level
Definition: SDL_haptic.h:648
SDL_HapticCustom::attack_length
Uint16 attack_length
Definition: SDL_haptic.h:714
SDL_HapticLeftRight::length
Uint32 length
Definition: SDL_haptic.h:671
SDLCALL
#define SDLCALL
Definition: SDL_internal.h:45
SDL_HapticRamp::button
Uint16 button
Definition: SDL_haptic.h:639
SDL_error.h
SDL_HapticOpened
int SDL_HapticOpened(int device_index)
Checks if the haptic device at index has been opened.
Definition: SDL_haptic.c:169
SDL_HapticPeriodic::phase
Uint16 phase
Definition: SDL_haptic.h:558
SDL_NumHaptics
int SDL_NumHaptics(void)
Count the number of haptic devices attached to the system.
Definition: SDL_haptic.c:83
Sint16
int16_t Sint16
Definition: SDL_stdinc.h:163
SDL_HapticConstant::fade_length
Uint16 fade_length
Definition: SDL_haptic.h:477
SDL_HapticConstant::direction
SDL_HapticDirection direction
Definition: SDL_haptic.h:461
SDL_HapticCustom::direction
SDL_HapticDirection direction
Definition: SDL_haptic.h:697
SDL_HapticCustom::channels
Uint8 channels
Definition: SDL_haptic.h:708
SDL_HapticStopAll
int SDL_HapticStopAll(SDL_Haptic *haptic)
Stops all the currently playing effects on a haptic device.
Definition: SDL_haptic.c:725
SDL_HapticUnpause
int SDL_HapticUnpause(SDL_Haptic *haptic)
Unpauses a haptic device.
Definition: SDL_haptic.c:708
SDL_HapticCustom::interval
Uint16 interval
Definition: SDL_haptic.h:705