Add bindings for game controller input.

* sdl2.scm (%default-init-flags): Add 'joystick' to default flags.
(sdl-init): Translate to 'joystick' to SDL2 init bit flag.
* sdl2/bindings.scm (SDL_INIT_JOYSTICK, SDL_JOYSTICK_POWER_UNKNOWN,
SDL_JOYSTICK_POWER_EMPTY, SDL_JOYSTICK_POWER_LOW,
SDL_JOYSTICK_POWER_MEDIUM, SDL_JOYSTICK_POWER_FULL,
SDL_JOYSTICK_POWER_WIRED, SDL_JOYSTICK_POWER_MAX,
SDL_CONTROLLER_AXIS_INVALID, SDL_CONTROLLER_AXIS_LEFTX,
SDL_CONTROLLER_AXIS_LEFTY, SDL_CONTROLLER_AXIS_RIGHTX,
SDL_CONTROLLER_AXIS_RIGHTY, SDL_CONTROLLER_AXIS_TRIGGERLEFT,
SDL_CONTROLLER_AXIS_TRIGGERRIGHT, SDL_CONTROLLER_AXIS_MAX,
SDL_CONTROLLER_BUTTON_INVALID, SDL_CONTROLLER_BUTTON_A,
SDL_CONTROLLER_BUTTON_B, SDL_CONTROLLER_BUTTON_X,
SDL_CONTROLLER_BUTTON_Y, SDL_CONTROLLER_BUTTON_BACK,
SDL_CONTROLLER_BUTTON_GUIDE, SDL_CONTROLLER_BUTTON_START,
SDL_CONTROLLER_BUTTON_LEFTSTICK, SDL_CONTROLLER_BUTTON_RIGHTSTICK,
SDL_CONTROLLER_BUTTON_LEFTSHOULDER, SDL_CONTROLLER_BUTTON_RIGHTSHOULDER,
SDL_CONTROLLER_BUTTON_DPAD_UP, SDL_CONTROLLER_BUTTON_DPAD_DOWN,
SDL_CONTROLLER_BUTTON_DPAD_LEFT, SDL_CONTROLLER_BUTTON_DPAD_RIGHT,
SDL_CONTROLLER_BUTTON_MAX): New variables.
(sdl-joystick-open, sdl-joystick-close,
sdl-joystick-current-power-level, sdl-joystick-event-state,
sdl-joystick-from-instance-id, sdl-joystick-get-attached,
sdl-joystick-get-axis, sdl-joystick-get-ball, sdl-joystick-get-button,
sdl-joystick-get-device-guid, sdl-joystick-get-guide,
sdl-joystick-get-guid-from-string, sdl-joystick-get-guid-string,
sdl-joystick-get-hat, sdl-joystick-instance-id, sdl-joystick-name,
sdl-joystick-name-for-index, sdl-joystick-num-axes,
sdl-joystick-num-balls, sdl-joystick-num-buttons, sdl-joystick-num-hats,
sdl-num-joysticks, sdl-joystick-update, sdl-game-controller-add-mapping,
sdl-game-controller-open, sdl-game-controller-close,
sdl-game-controller-event-state, sdl-game-controller-from-instance-id,
sdl-game-controller-get-attached, sdl-game-controller-get-axis,
sdl-game-controller-get-axis-from-string,
sdl-game-controller-get-string-from-axis,
sdl-game-controller-get-string-for-axis, sdl-game-controller-get-button,
sdl-game-controller-get-button-from-string,
sdl-game-controller-get-string-from-button,
sdl-game-controller-get-joystick, sdl-game-controller-mapping,
sdl-game-controller-mapping-for-guid, sdl-game-controller-name,
sdl-game-controller-name-for-index, sdl-game-controller-update,
sdl-is-game-controller): New procedures.
* sdl2/events.scm (make-joystick-ball-event, joystick-ball-event?,
joystick-ball-event-timestamp, joystick-ball-event-which,
joystick-ball-event-ball, joystick-ball-event-x-rel,
joystick-ball-event-y-rel, make-joystick-hat-event, joystick-hat-event?,
joystick-hat-event-timestamp, joystick-hat-event-which,
joystick-hat-event-hat, joystick-hat-event-value,
make-joystick-device-event, joystick-device-event?,
joystick-device-event-timestamp, joystick-device-event-which,
joystick-device-event-action, make-controller-axis-event,
controller-axis-event?, controller-axis-event-timestamp,
controller-axis-event-which, controller-axis-event-axis,
controller-axis-event-value, make-controller-button-event,
controller-button-event?, controller-button-down-event?,
controller-button-up-event?, controller-button-event-timestamp,
controller-button-event-which, controller-button-event-button,
controller-button-event-pressed?, make-controller-device-event,
controller-device-event?, controller-device-event-timestamp,
controller-device-event-which, controller-device-event-action,
parse-joystick-ball-event, parse-joystick-hat-event,
parse-joystick-device-event, parse-controller-axis-event,
parse-controller-button-event, parse-controller-device-event): New
procedures.
(poll-event): Parse joystick/controller events.
* sdl2/input/joystick.scm: New file.
* sdl2/input/game-controller.scm: New file.
* Makefile.am (SOURCES): Add them

1 files changed, 172 insertions, 0 deletions

diff --git a/sdl2/bindings.scm b/sdl2/bindings.scm
index e48ce64..1eb4813 100644
--- a/sdl2/bindings.scm
+++ b/sdl2/bindings.scm
@@ -71,6 +71,7 @@ RETURN-TYPE and accept arguments of ARG-TYPES."
 (define-public SDL_INIT_TIMER          #x00000001)
 (define-public SDL_INIT_AUDIO          #x00000010)
 (define-public SDL_INIT_VIDEO          #x00000020)
+(define-public SDL_INIT_JOYSTICK       #x00000200)
 (define-public SDL_INIT_HAPTIC         #x00001000)
 (define-public SDL_INIT_GAMECONTROLLER #x00002000)
 (define-public SDL_INIT_EVENTS         #x00004000)
@@ -949,3 +950,174 @@ RETURN-TYPE and accept arguments of ARG-TYPES."
 (define-public AUDIO_F32LSB #x8120)
 (define-public AUDIO_F32MSB #x9120)
 (define-public AUDIO_F32    AUDIO_F32LSB)
+
+
+;;;
+;;; Joystick
+;;;
+
+(define-public SDL_JOYSTICK_POWER_UNKNOWN -1)
+(define-public SDL_JOYSTICK_POWER_EMPTY 0)
+(define-public SDL_JOYSTICK_POWER_LOW 1)
+(define-public SDL_JOYSTICK_POWER_MEDIUM 2)
+(define-public SDL_JOYSTICK_POWER_FULL 3)
+(define-public SDL_JOYSTICK_POWER_WIRED 4)
+(define-public SDL_JOYSTICK_POWER_MAX 5)
+
+(define-foreign sdl-joystick-open
+  '* "SDL_JoystickOpen" (list int))
+
+(define-foreign sdl-joystick-close
+  void "SDL_JoystickClose" '(*))
+
+(define-foreign sdl-joystick-current-power-level
+  int "SDL_JoystickCurrentPowerLevel" '(*))
+
+(define-foreign sdl-joystick-event-state
+  int "SDL_JoystickEventState" (list int))
+
+(define-foreign sdl-joystick-from-instance-id
+  '* "SDL_JoystickFromInstanceID" (list int32))
+
+(define-foreign sdl-joystick-get-attached
+  sdl-bool "SDL_JoystickGetAttached" '(*))
+
+(define-foreign sdl-joystick-get-axis
+  int16 "SDL_JoystickGetAxis" (list '* int))
+
+(define-foreign sdl-joystick-get-ball
+  int "SDL_JoystickGetBall" (list '* int '* '*))
+
+(define-foreign sdl-joystick-get-button
+  uint8 "SDL_JoystickGetButton" (list '* int))
+
+(define-foreign sdl-joystick-get-device-guid
+  '* "SDL_JoystickGetDeviceGUID" (list int))
+
+(define-foreign sdl-joystick-get-guid
+  '* "SDL_JoystickGetGUID" (list int))
+
+(define-foreign sdl-joystick-get-guid-from-string
+  '* "SDL_JoystickGetGUIDFromString" '(*))
+
+(define-foreign sdl-joystick-get-guid-string
+  void "SDL_JoystickGetGUIDString" (list '* '* int))
+
+(define-foreign sdl-joystick-get-hat
+  uint8 "SDL_JoystickGetHat" (list '* int))
+
+(define-foreign sdl-joystick-instance-id
+  int32 "SDL_JoystickInstanceID" '(*))
+
+(define-foreign sdl-joystick-name
+  '* "SDL_JoystickName" '(*))
+
+(define-foreign sdl-joystick-name-for-index
+  '* "SDL_JoystickNameForIndex" (list int))
+
+(define-foreign sdl-joystick-num-axes
+  int "SDL_JoystickNumAxes" '(*))
+
+(define-foreign sdl-joystick-num-balls
+  int "SDL_JoystickNumBalls" '(*))
+
+(define-foreign sdl-joystick-num-buttons
+  int "SDL_JoystickNumButtons" '(*))
+
+(define-foreign sdl-joystick-num-hats
+  int "SDL_JoystickNumHats" '(*))
+
+(define-foreign sdl-num-joysticks
+  int "SDL_NumJoysticks" '())
+
+(define-foreign sdl-joystick-update
+  void "SDL_JoystickUpdate" '())
+
+
+;;;
+;;; Game Controllers
+;;;
+
+(define-public SDL_CONTROLLER_AXIS_INVALID -1)
+(define-public SDL_CONTROLLER_AXIS_LEFTX 0)
+(define-public SDL_CONTROLLER_AXIS_LEFTY 1)
+(define-public SDL_CONTROLLER_AXIS_RIGHTX 2)
+(define-public SDL_CONTROLLER_AXIS_RIGHTY 3)
+(define-public SDL_CONTROLLER_AXIS_TRIGGERLEFT 4)
+(define-public SDL_CONTROLLER_AXIS_TRIGGERRIGHT 5)
+(define-public SDL_CONTROLLER_AXIS_MAX 6)
+
+(define-public SDL_CONTROLLER_BUTTON_INVALID -1)
+(define-public SDL_CONTROLLER_BUTTON_A 0)
+(define-public SDL_CONTROLLER_BUTTON_B 1)
+(define-public SDL_CONTROLLER_BUTTON_X 2)
+(define-public SDL_CONTROLLER_BUTTON_Y 3)
+(define-public SDL_CONTROLLER_BUTTON_BACK 4)
+(define-public SDL_CONTROLLER_BUTTON_GUIDE 5)
+(define-public SDL_CONTROLLER_BUTTON_START 6)
+(define-public SDL_CONTROLLER_BUTTON_LEFTSTICK 7)
+(define-public SDL_CONTROLLER_BUTTON_RIGHTSTICK 8)
+(define-public SDL_CONTROLLER_BUTTON_LEFTSHOULDER 9)
+(define-public SDL_CONTROLLER_BUTTON_RIGHTSHOULDER 10)
+(define-public SDL_CONTROLLER_BUTTON_DPAD_UP 11)
+(define-public SDL_CONTROLLER_BUTTON_DPAD_DOWN 12)
+(define-public SDL_CONTROLLER_BUTTON_DPAD_LEFT 13)
+(define-public SDL_CONTROLLER_BUTTON_DPAD_RIGHT 14)
+(define-public SDL_CONTROLLER_BUTTON_MAX 15)
+
+(define-foreign sdl-game-controller-add-mapping
+  int "SDL_GameControllerAddMapping" '(*))
+
+(define-foreign sdl-game-controller-open
+  '* "SDL_GameControllerOpen" (list int))
+
+(define-foreign sdl-game-controller-close
+  void "SDL_GameControllerClose" '(*))
+
+(define-foreign sdl-game-controller-event-state
+  int "SDL_GameControllerEventState" (list int))
+
+(define-foreign sdl-game-controller-from-instance-id
+  '* "SDL_GameControllerFromInstanceID" (list int32))
+
+(define-foreign sdl-game-controller-get-attached
+  sdl-bool "SDL_GameControllerGetAttached" '(*))
+
+(define-foreign sdl-game-controller-get-axis
+  int16 "SDL_GameControllerGetAxis" (list '* int))
+
+(define-foreign sdl-game-controller-get-axis-from-string
+  int "SDL_GameControllerGetAxisFromString" '(*))
+
+(define-foreign sdl-game-controller-get-string-for-axis
+  '* "SDL_GameControllerGetStringForAxis" (list int))
+
+(define-foreign sdl-game-controller-get-button
+  uint8 "SDL_GameControllerGetButton" (list '* int))
+
+(define-foreign sdl-game-controller-get-button-from-string
+  int "SDL_GameControllerGetButtonFromString" '(*))
+
+(define-foreign sdl-game-controller-get-string-for-button
+  '* "SDL_GameControllerGetStringForButton" (list int))
+
+(define-foreign sdl-game-controller-get-joystick
+  '* "SDL_GameControllerGetJoystick" '(*))
+
+(define-foreign sdl-game-controller-mapping
+  '* "SDL_GameControllerMapping" '(*))
+
+(define-foreign sdl-game-controller-mapping-for-guid
+  '* "SDL_GameControllerMappingForGUID" '(*))
+
+(define-foreign sdl-game-controller-name
+  '* "SDL_GameControllerName" '(*))
+
+(define-foreign sdl-game-controller-name-for-index
+  '* "SDL_GameControllerNameForIndex" (list int))
+
+(define-foreign sdl-game-controller-update
+  void "SDL_GameControllerUpdate" '())
+
+(define-foreign sdl-is-game-controller
+  sdl-bool "SDL_IsGameController" (list int))