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view R/rdyncall/demo/playtune.R @ 12:079718588eb6

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made erlang binding work with system *installed* dyncall: - made build use static libraries (used .o files directly) - removed custom flags for include path and relying on CFLAGS now - change cc to $(CC) - readme update with build instructions, etc.
author cslag
date Sat, 26 Mar 2016 15:55:50 +0100
parents 0cfcc391201f
children
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# Package: rdyncall 
# File: demo/playtune.R
# Description: play a nice oldsch00l tune.
# Uses: SDL/audio, SDL_mixer

rsrc <- function(name) system.file(paste("demo-files",name,sep=.Platform$file.sep), package="rdyncall")
music <- NULL
init <- function()
{
  require(rdyncall)
  dynport(SDL)
  SDL_Init(SDL_INIT_AUDIO)
  dynport(SDL_mixer)
  Mix_OpenAudio(MIX_DEFAULT_FREQUENCY, MIX_DEFAULT_FORMAT, 2, 4096)
  music <<- Mix_LoadMUS(rsrc("external.xm"))
}
cleanup <- function()
{
  stopTune()
  Mix_FreeMusic(music)
  Mix_CloseAudio()
  SDL_Quit()
}

playTune <- function() {
  Mix_PlayMusic(music, 1) 
  cat("playing music... [to stop, call 'stopTune()']\n")
}
pauseTune <- function() Mix_PauseMusic()
stopTune <- function() Mix_HaltMusic()  

init()
playTune()