Nim OpenAL wrapper
An OpenAL wrapper for nim. OpenAL is a cross platform way to play sounds.
OpenAL works on:
- Windows
- macOS
- Linux
Its great for games because it can play sounds in 3d and apply effects to them.
Great reference on how to use openAL:
https://github.com/kcat/openal-soft/wiki/Programmer's-Guide
Small example on how to use this nim library:
import openal, os, readwav
var
# sound by DANMITCH3LL: https://freesound.org/people/DANMITCH3LL/sounds/232009/
wav = readWav("xylophone-sweep.wav") # read wav file using simple helper utility
buffer = ALuint(0) # buffer is like a record of a sound
source = ALuint(0) # source is like a record player, it can play 1 buffer at a time
# open setup and error handling
let device = alcOpenDevice(nil)
if device == nil: quit "OpenAL: failed to get default device"
let ctx = device.alcCreateContext(nil)
if ctx == nil: quit "OpenAL: failed to create context"
if not alcMakeContextCurrent(ctx): quit "OpenAL: failed to make context current"
# setup buffer
alGenBuffers(ALsizei 1, addr buffer)
alBufferData(buffer, AL_FORMAT_MONO16, wav.data, ALsizei wav.size, ALsizei wav.freq)
# setup source
alGenSources(ALsizei 1, addr source)
alSourcei(source, AL_BUFFER, Alint buffer)
alSourcePlay(source)
# wait for sound to finish playing
sleep(2500)
# taredown and error handling
alDeleteSources(1, addr source)
alDeleteBuffers(1, addr buffer)
alcDestroyContext(ctx)
if not alcCloseDevice(device): quit "OpenAL: failed to close device"
