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import os
import subprocess
from sys import platform
import pathlib
import psutil
from renardo.SCFilesHandling import SC_USER_CONFIG_DIR
class SupercolliderInstance:
def __init__(self):
self.sclang_process = None
self.supercollider_ready = None
if platform == "win32":
path_glob = list(pathlib.Path("C:\\Program Files").glob("SuperCollider*"))
if len(path_glob) == 0: # return if no supercollider folder
self.supercollider_ready = False
else:
sc_dir = path_glob[0] # to match SuperCollider-3.version like folders
os.environ["PATH"] += f"{sc_dir};"
sclang_path = sc_dir / "sclang.exe"
#self.sclang_exec = [str(sclang_path), str(SC_USER_CONFIG_DIR / 'start_renardo.scd')]
self.sclang_exec = [str(sclang_path), '-i', 'scqt']
self.check_exec = [str(sclang_path), '-version']
else:
#self.sclang_exec = ["sclang", str(SC_USER_CONFIG_DIR / 'start_renardo.scd')]
self.sclang_exec = ["sclang", '-i', 'scqt']
self.check_exec = ["sclang", '-version']
self.is_supercollider_ready()
def is_supercollider_ready(self):
if self.supercollider_ready is None:
try:
completed_process = subprocess.run(self.check_exec, capture_output=True)
self.supercollider_ready = completed_process.returncode==0
except:
self.supercollider_ready = False
return self.supercollider_ready
def start_sclang_subprocess(self):
if not self.is_sclang_running():
#print("Auto Launching Renardo SC module with SCLang...")
self.sclang_process = subprocess.Popen(
args=self.sclang_exec,
#shell=True,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
stdin=subprocess.PIPE,
)
return True
else:
return False
def read_stdout_line(self):
if self.sclang_process.returncode is None:
return self.sclang_process.stdout.readline().decode("utf-8")
def read_stderr_line(self):
if self.sclang_process.returncode is None:
return self.sclang_process.stderr.readline().decode("utf-8")
def evaluate_sclang_code(self, code_string):
raw = code_string.encode("utf-8") + b"\x1b"
self.sclang_process.stdin.write(raw)
self.sclang_process.stdin.flush()
# TODO : find a way to consistently stop sclang and scsynth when renardo stops/dies
# TODO : find a way to name/tag the sclang/synth processes with name renardo to find it better
# TODO : Use name renardo for scsynth audio server (for example with JACK Driver)
def __del__(self):
pass
# self.popen.kill() # TODO: fix that the destructor is not called
# need to clarify the launch and close process of foxdot/renardo !
# self.popen.wait()
def is_sclang_running(self):
running = False
for process in psutil.process_iter():
if 'sclang' in process.name():
running = True
return running
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