(in-package #:lispbuilder-sdl)
(defmethod load-image ((source rwops) &key color-key alpha image-type force free-rwops (color-key-at nil))
"Returns a new `SURFACE` from the `RWOPS` in `SOURCE`."
(declare (ignore image-type force))
(let ((surf (make-instance 'surface
:using-surface (sdl-cffi::SDL-Load-BMP-RW (fp source) 0)
:enable-color-key (or color-key color-key-at)
:color-key color-key
:color-key-at color-key-at
:enable-alpha alpha
:alpha alpha
:x 0 :y 0)))
(when free-rwops
(free source))
surf))
(defmethod load-image ((source VECTOR) &key color-key alpha image-type force free-rwops (color-key-at nil))
"Returns a new `SURFACE` from the byte array in `SOURCE`."
(declare (ignore image-type force free-rwops))
(load-image (create-RWops-from-byte-array source)
:color-key color-key
:color-key-at color-key-at
:alpha alpha
:free-rwops t))
(defmethod load-image ((filename string) &key color-key alpha image-type force free-rwops (color-key-at nil))
"Returns a new `SURFACE` from the file at location `FILENAME`."
(declare (ignore image-type force free-rwops))
(let ((file (namestring filename)))
(if (and (stringp file) (probe-file file))
(load-image (create-RWops-from-file file)
:color-key color-key
:color-key-at color-key-at
:alpha alpha
:free-rwops t)
(error "File ~A does not exist." file))))
(defun save-image (surface filename)
"Saves the `SURFACE` as a `BMP` image to a file at location `FILENAME`."
(check-type surface sdl-surface)
(let ((file (namestring filename)))
(sdl-cffi::SDL-Save-BMP-RW (fp surface) (sdl-cffi::SDL-RW-FROM-FILE file "wb") 1)))
