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import os
from typing import Dict, Any
import decky
class DllDetectionService:
"""Service for detecting Lossless Scaling DLL"""
async def check_lossless_scaling_dll(self) -> Dict[str, Any]:
"""Check if Lossless Scaling DLL is available at the expected paths"""
try:
# Check environment variable first
dll_path = os.getenv("LSFG_DLL_PATH")
if dll_path and dll_path.strip():
dll_path_str = dll_path.strip()
if os.path.exists(dll_path_str):
return {
"detected": True,
"path": dll_path_str,
"source": "LSFG_DLL_PATH environment variable"
}
# Check XDG_DATA_HOME path
data_dir = os.getenv("XDG_DATA_HOME")
if data_dir and data_dir.strip():
dll_path_str = os.path.join(data_dir.strip(), "Steam", "steamapps", "common", "Lossless Scaling", "Lossless.dll")
if os.path.exists(dll_path_str):
return {
"detected": True,
"path": dll_path_str,
"source": "XDG_DATA_HOME Steam directory"
}
# Check HOME/.local/share path
home_dir = os.getenv("HOME")
if home_dir and home_dir.strip():
dll_path_str = os.path.join(home_dir.strip(), ".local", "share", "Steam", "steamapps", "common", "Lossless Scaling", "Lossless.dll")
if os.path.exists(dll_path_str):
return {
"detected": True,
"path": dll_path_str,
"source": "HOME/.local/share Steam directory"
}
# DLL not found in any expected location
return {
"detected": False,
"path": None,
"source": None,
"message": "Lossless Scaling DLL not found in expected locations"
}
except Exception as e:
decky.logger.error(f"Error checking Lossless Scaling DLL: {str(e)}")
return {
"detected": False,
"path": None,
"source": None,
"error": str(e)
}
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