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Added API for sensors on game controllers

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Added support for the PS4 controller gyro and accelerometer on iOS and HIDAPI drivers

Also fixed an issue with the accelerometer on iOS having inverted axes
This commit is contained in:
Sam Lantinga 2020-11-17 10:30:20 -08:00
parent b79e1baa36
commit fcb21aa883
33 changed files with 810 additions and 118 deletions
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19
include/SDL_sensor.h
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@ -78,14 +78,16 @@ typedef enum
* Accelerometer sensor
*
* The accelerometer returns the current acceleration in SI meters per
* second squared. This includes gravity, so a device at rest will have
* an acceleration of SDL_STANDARD_GRAVITY straight down.
* second squared. This measurement includes the force of gravity, so
* a device at rest will have an value of SDL_STANDARD_GRAVITY away
* from the center of the earth.
*
* values[0]: Acceleration on the x axis
* values[1]: Acceleration on the y axis
* values[2]: Acceleration on the z axis
*
* For phones held in portrait mode, the axes are defined as follows:
* For phones held in portrait mode and game controllers held in front of you,
* the axes are defined as follows:
* -X ... +X : left ... right
* -Y ... +Y : bottom ... top
* -Z ... +Z : farther ... closer
@ -105,16 +107,17 @@ typedef enum
* see positive rotation on that axis when it appeared to be rotating
* counter-clockwise.
*
* values[0]: Angular speed around the x axis
* values[1]: Angular speed around the y axis
* values[2]: Angular speed around the z axis
* values[0]: Angular speed around the x axis (pitch)
* values[1]: Angular speed around the y axis (yaw)
* values[2]: Angular speed around the z axis (roll)
*
* For phones held in portrait mode, the axes are defined as follows:
* For phones held in portrait mode and game controllers held in front of you,
* the axes are defined as follows:
* -X ... +X : left ... right
* -Y ... +Y : bottom ... top
* -Z ... +Z : farther ... closer
*
* The axis data is not changed when the phone is rotated.
* The axis data is not changed when the phone or controller is rotated.
*
* \sa SDL_GetDisplayOrientation()
*/