openal-format ( audio -- format ) - Factor Documentation

openal-format ( audio -- format )
Audio framework

<audio> ( channels sample-bits sample-rate size data -- audio )

Vocabulary
audio

Inputs

audio

Outputs

format

an ALenum value

Word description
Returns the OpenAL format value that corresponds to the format of the audio object. If the object's format doesn't match an OpenAL-supported format, a format-unsupported-by-openal error is thrown.

Definition

USING: accessors arrays combinators kernel openal ;

IN: audio

: openal-format ( audio -- format )
dup [ channels>> ] [ sample-bits>> ] bi 2array {
{ { 1 8 } [ drop AL_FORMAT_MONO8 ] }
{ { 1 16 } [ drop AL_FORMAT_MONO16 ] }
{ { 2 8 } [ drop AL_FORMAT_STEREO8 ] }
{ { 2 16 } [ drop AL_FORMAT_STEREO16 ] }
[ drop format-unsupported-by-openal ]
} case ;