mixer.scm


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(module downstroke-mixer *
(import scheme
        (chicken base)
        (chicken foreign))

#> #include "SDL2/SDL_mixer.h" <#

(define-foreign-type mix-chunk* (c-pointer "Mix_Chunk"))

(define mix-open-audio!
  (foreign-lambda int "Mix_OpenAudio" int unsigned-short int int))

(define mix-close-audio!
  (foreign-lambda void "Mix_CloseAudio"))

(define mix-load-chunk
  (foreign-lambda* mix-chunk* ((c-string path))
    "C_return(Mix_LoadWAV(path));"))

(define mix-free-chunk!
  (foreign-lambda void "Mix_FreeChunk" mix-chunk*))

(define mix-play-channel
  (foreign-lambda int "Mix_PlayChannel" int mix-chunk* int))

(define mix-default-format
  ((foreign-lambda* unsigned-short ()
     "C_return(MIX_DEFAULT_FORMAT);")))

(define-foreign-type mix-music* (c-pointer "Mix_Music"))

(define mix-load-mus
  (foreign-lambda mix-music* "Mix_LoadMUS" c-string))

(define mix-play-music
  (foreign-lambda int "Mix_PlayMusic" mix-music* int))

(define mix-free-music!
  (foreign-lambda void "Mix_FreeMusic" mix-music*))

(define mix-halt-music
  (foreign-lambda int "Mix_HaltMusic"))

(define mix-volume-music
  (foreign-lambda int "Mix_VolumeMusic" int))
)