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;;; guile-sdl2 --- FFI bindings for SDL2
;;; Copyright © 2015 David Thompson <davet@gnu.org>
;;;
;;; This file is part of guile-sdl2.
;;;
;;; Guile-sdl2 is free software; you can redistribute it and/or modify
;;; it under the terms of the GNU Lesser General Public License as
;;; published by the Free Software Foundation; either version 3 of the
;;; License, or (at your option) any later version.
;;;
;;; Guile-sdl2 is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;;; General Public License for more details.
;;;
;;; You should have received a copy of the GNU Lesser General Public
;;; License along with guile-sdl2. If not, see
;;; <http://www.gnu.org/licenses/>.
;;; Commentary:
;;
;; Low-level FFI bindings.
;;
;;; Code:
(define-module (sdl2 bindings)
#:use-module (system foreign)
#:use-module (sdl2 config)
#:export (boolean->sdl-bool
SDL_INIT_TIMER
SDL_INIT_AUDIO
SDL_INIT_VIDEO
SDL_INIT_HAPTIC
SDL_INIT_GAMECONTROLLER
SDL_INIT_EVENTS
SDL_INIT_NOPARACHUTE
SDL_WINDOW_FULLSCREEN
SDL_WINDOW_OPENGL
SDL_WINDOW_SHOWN
SDL_WINDOW_HIDDEN
SDL_WINDOW_BORDERLESS
SDL_WINDOW_RESIZABLE
SDL_WINDOW_MINIMIZED
SDL_WINDOW_MAXIMIZED
SDL_WINDOW_INPUT_GRABBED
SDL_WINDOW_INPUT_FOCUS
SDL_WINDOW_MOUSE_FOCUS
SDL_WINDOW_FULLSCREEN_DESKTOP
SDL_WINDOW_FOREIGN
SDL_WINDOW_ALLOW_HIGHDPI
SDL_WINDOW_MOUSE_CAPTURE))
(define sdl-func
(let ((lib (dynamic-link %libsdl2)))
(lambda (return-type function-name arg-types)
"Return a procedure for the foreign function FUNCTION-NAME in
the SDL2 shared library. That function must return a value of
RETURN-TYPE and accept arguments of ARG-TYPES."
(pointer->procedure return-type
(dynamic-func function-name lib)
arg-types))))
(define-syntax-rule (define-foreign name return-type func-name arg-types)
(define-public name
(sdl-func return-type func-name arg-types)))
;;;
;;; Foreign Types
;;;
(define sdl-bool int)
(define (boolean->sdl-bool b)
"Convert the boolean B to an SDL_bool."
(if b 1 0))
;;;
;;; Errors
;;;
(define-foreign sdl-get-error
'* "SDL_GetError" '())
;;;
;;; Initialization
;;;
(define SDL_INIT_TIMER #x00000001)
(define SDL_INIT_AUDIO #x00000010)
(define SDL_INIT_VIDEO #x00000020)
(define SDL_INIT_HAPTIC #x00001000)
(define SDL_INIT_GAMECONTROLLER #x00002000)
(define SDL_INIT_EVENTS #x00004000)
(define-foreign sdl-init
int "SDL_Init" (list uint32))
(define-foreign sdl-quit
void "SDL_Quit" '())
;;;
;;; Version
;;;
(define-foreign sdl-get-version
void "SDL_GetVersion" '(*))
;;;
;;; Video
;;;
(define SDL_WINDOW_FULLSCREEN #x00000001)
(define SDL_WINDOW_OPENGL #x00000002)
(define SDL_WINDOW_SHOWN #x00000004)
(define SDL_WINDOW_HIDDEN #x00000008)
(define SDL_WINDOW_BORDERLESS #x00000010)
(define SDL_WINDOW_RESIZABLE #x00000020)
(define SDL_WINDOW_MINIMIZED #x00000040)
(define SDL_WINDOW_MAXIMIZED #x00000080)
(define SDL_WINDOW_INPUT_GRABBED #x00000100)
(define SDL_WINDOW_INPUT_FOCUS #x00000200)
(define SDL_WINDOW_MOUSE_FOCUS #x00000400)
(define SDL_WINDOW_FULLSCREEN_DESKTOP (logior SDL_WINDOW_FULLSCREEN
#x00001000))
(define SDL_WINDOW_FOREIGN #x00000800)
(define SDL_WINDOW_ALLOW_HIGHDPI #x00002000)
(define SDL_WINDOW_MOUSE_CAPTURE #x00004000)
(define-foreign sdl-create-window
'* "SDL_CreateWindow" (list '* int int int int uint32))
(define-foreign sdl-destroy-window
void "SDL_DestroyWindow" '(*))
(define-foreign sdl-get-window-title
'* "SDL_GetWindowTitle" '(*))
(define-foreign sdl-get-window-size
void "SDL_GetWindowSize" '(* * *))
(define-foreign sdl-get-window-position
void "SDL_GetWindowPosition" '(* * *))
(define-foreign sdl-get-window-id
uint32 "SDL_GetWindowID" '(*))
(define-foreign sdl-get-window-from-id
'* "SDL_GetWindowFromID" (list uint32))
(define-foreign sdl-hide-window
void "SDL_HideWindow" '(*))
(define-foreign sdl-show-window
void "SDL_ShowWindow" '(*))
(define-foreign sdl-maximize-window
void "SDL_MaximizeWindow" '(*))
(define-foreign sdl-minimize-window
void "SDL_MinimizeWindow" '(*))
(define-foreign sdl-raise-window
void "SDL_RaiseWindow" '(*))
(define-foreign sdl-restore-window
void "SDL_RestoreWindow" '(*))
(define-foreign sdl-set-window-bordered
void "SDL_SetWindowBordered" (list '* sdl-bool))
(define-foreign sdl-set-window-title
void "SDL_SetWindowTitle" '(* *))
(define-foreign sdl-set-window-position
void "SDL_SetWindowPosition" (list '* int int))
(define-foreign sdl-set-window-size
void "SDL_SetWindowSize" (list '* int int))
(define-foreign sdl-gl-create-context
'* "SDL_GL_CreateContext" '(*))
(define-foreign sdl-gl-delete-context
void "SDL_GL_DeleteContext" '(*))
(define-foreign sdl-gl-swap-window
void "SDL_GL_SwapWindow" '(*))
;;;
;;; Timer
;;;
(define-foreign sdl-get-ticks
uint32 "SDL_GetTicks" '())
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