From 90f08d32e5ce7be8b5f3c272bcd9a2773cd134ae Mon Sep 17 00:00:00 2001
From: David Thompson <dthompson2@worcester.edu>
Date: Wed, 2 Oct 2024 21:22:19 -0400
Subject: First commit!

---
 sdl3.scm | 67 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 sdl3.scm

(limited to 'sdl3.scm')

diff --git a/sdl3.scm b/sdl3.scm
new file mode 100644
index 0000000..1430116
--- /dev/null
+++ b/sdl3.scm
@@ -0,0 +1,67 @@
+;;; guile-sdl3 -- Scheme bindings for SDL3
+;;; Copyright © 2024 David Thompson <dthompson2@worcester.edu>
+;;;
+;;; Licensed under the Apache License, Version 2.0 (the "License");
+;;; you may not use this file except in compliance with the License.
+;;; You may obtain a copy of the License at
+;;;
+;;;    http://www.apache.org/licenses/LICENSE-2.0
+;;;
+;;; Unless required by applicable law or agreed to in writing, software
+;;; distributed under the License is distributed on an "AS IS" BASIS,
+;;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+;;; See the License for the specific language governing permissions and
+;;; limitations under the License.
+
+;;; Commentary:
+;;
+;; SDL3 initialization and shutdown.
+;;
+;;; Code:
+
+(define-module (sdl3)
+  #:use-module (ice-9 match)
+  #:use-module (sdl3 bindings init)
+  #:use-module (sdl3 errors)
+  #:use-module (srfi srfi-1)
+  #:use-module (system foreign)
+  #:export (sdl-init
+            sdl-quit))
+
+(define (sdl-init subsystems)
+  "Initialize SDL @var{subsystems}, a list of symbols.  By default, all
+subsystems are initialized.
+
+Valid subsystem names are:
+
+@itemize
+@item @code{audio}
+@item @code{video}
+@item @code{joystick}
+@item @code{haptic}
+@item @code{gamepad}
+@item @code{events}
+@item @code{sensor}
+@item @code{camera}
+@end itemize"
+  (sdl-assert 'sdl-init
+              (SDL_Init
+               (fold (lambda (name prev)
+                       (logior (match name
+                                 ('audio SDL_INIT_AUDIO)
+                                 ('video SDL_INIT_VIDEO)
+                                 ('joystick SDL_INIT_JOYSTICK)
+                                 ('haptic SDL_INIT_HAPTIC)
+                                 ('gamepad SDL_INIT_GAMEPAD)
+                                 ('events SDL_INIT_EVENTS)
+                                 ('sensor SDL_INIT_SENSOR)
+                                 ('camera SDL_INIT_CAMERA)
+                                 (_ (raise (make-sdl-error 'sdl-init
+                                                           #:message "invalid subsystem name"
+                                                           #:irritants (list name)))))
+                               prev))
+                     0 subsystems))))
+
+(define (sdl-quit)
+  "Clean up all initialized subsystems."
+  (SDL_Quit))
-- 
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