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-rw-r--r--py_modules/lsfg_vk/__init__.py14
-rw-r--r--py_modules/lsfg_vk/base_service.py103
-rw-r--r--py_modules/lsfg_vk/configuration.py175
-rw-r--r--py_modules/lsfg_vk/constants.py54
-rw-r--r--py_modules/lsfg_vk/dll_detection.py120
-rw-r--r--py_modules/lsfg_vk/installation.py225
-rw-r--r--py_modules/lsfg_vk/plugin.py159
-rw-r--r--py_modules/lsfg_vk/types.py71
8 files changed, 921 insertions, 0 deletions
diff --git a/py_modules/lsfg_vk/__init__.py b/py_modules/lsfg_vk/__init__.py
new file mode 100644
index 0000000..8343853
--- /dev/null
+++ b/py_modules/lsfg_vk/__init__.py
@@ -0,0 +1,14 @@
+"""
+lsfg-vk plugin package for Decky Loader.
+
+This package provides services for installing and managing the lsfg-vk
+Vulkan layer for Lossless Scaling frame generation.
+"""
+
+# Import will be available once plugin.py exists
+try:
+ from .plugin import Plugin
+ __all__ = ['Plugin']
+except ImportError:
+ # During development, plugin may not exist yet
+ __all__ = []
diff --git a/py_modules/lsfg_vk/base_service.py b/py_modules/lsfg_vk/base_service.py
new file mode 100644
index 0000000..b547759
--- /dev/null
+++ b/py_modules/lsfg_vk/base_service.py
@@ -0,0 +1,103 @@
+"""
+Base service class with common functionality.
+"""
+
+import os
+import shutil
+import tempfile
+from pathlib import Path
+from typing import Any, Optional
+
+from .constants import LOCAL_LIB, LOCAL_SHARE_BASE, VULKAN_LAYER_DIR, SCRIPT_NAME
+
+
+class BaseService:
+ """Base service class with common functionality"""
+
+ def __init__(self, logger: Optional[Any] = None):
+ """Initialize base service
+
+ Args:
+ logger: Logger instance, defaults to decky.logger if None
+ """
+ if logger is None:
+ import decky
+ self.log = decky.logger
+ else:
+ self.log = logger
+
+ # Initialize common paths using pathlib
+ self.user_home = Path.home()
+ self.local_lib_dir = self.user_home / LOCAL_LIB
+ self.local_share_dir = self.user_home / VULKAN_LAYER_DIR
+ self.lsfg_script_path = self.user_home / SCRIPT_NAME
+
+ def _ensure_directories(self) -> None:
+ """Create necessary directories if they don't exist"""
+ self.local_lib_dir.mkdir(parents=True, exist_ok=True)
+ self.local_share_dir.mkdir(parents=True, exist_ok=True)
+ self.log.info(f"Ensured directories exist: {self.local_lib_dir}, {self.local_share_dir}")
+
+ def _remove_if_exists(self, path: Path) -> bool:
+ """Remove a file if it exists
+
+ Args:
+ path: Path to the file to remove
+
+ Returns:
+ True if file was removed, False if it didn't exist
+
+ Raises:
+ OSError: If removal fails
+ """
+ if path.exists():
+ try:
+ path.unlink()
+ self.log.info(f"Removed {path}")
+ return True
+ except OSError as e:
+ self.log.error(f"Failed to remove {path}: {e}")
+ raise
+ else:
+ self.log.info(f"File not found: {path}")
+ return False
+
+ def _atomic_write(self, path: Path, content: str, mode: int = 0o644) -> None:
+ """Write content to a file atomically
+
+ Args:
+ path: Target file path
+ content: Content to write
+ mode: File permissions (default: 0o644)
+
+ Raises:
+ OSError: If write fails
+ """
+ # Create temporary file in the same directory to ensure atomic move
+ temp_path = None
+ try:
+ with tempfile.NamedTemporaryFile(
+ mode='w',
+ dir=path.parent,
+ delete=False,
+ prefix=f'.{path.name}.',
+ suffix='.tmp'
+ ) as temp_file:
+ temp_file.write(content)
+ temp_path = Path(temp_file.name)
+
+ # Set permissions before moving
+ temp_path.chmod(mode)
+
+ # Atomic move
+ temp_path.replace(path)
+ self.log.info(f"Atomically wrote to {path}")
+
+ except Exception:
+ # Clean up temp file if something went wrong
+ if temp_path and temp_path.exists():
+ try:
+ temp_path.unlink()
+ except OSError:
+ pass # Best effort cleanup
+ raise
diff --git a/py_modules/lsfg_vk/configuration.py b/py_modules/lsfg_vk/configuration.py
new file mode 100644
index 0000000..f5e2981
--- /dev/null
+++ b/py_modules/lsfg_vk/configuration.py
@@ -0,0 +1,175 @@
+"""
+Configuration service for lsfg script management.
+"""
+
+import re
+from pathlib import Path
+from typing import Dict, Any
+
+from .base_service import BaseService
+from .constants import LSFG_SCRIPT_TEMPLATE
+from .types import ConfigurationResponse, ConfigurationData
+
+
+class ConfigurationService(BaseService):
+ """Service for managing lsfg script configuration"""
+
+ def get_config(self) -> ConfigurationResponse:
+ """Read current lsfg script configuration
+
+ Returns:
+ ConfigurationResponse with current configuration or error
+ """
+ try:
+ if not self.lsfg_script_path.exists():
+ return {
+ "success": False,
+ "config": None,
+ "message": None,
+ "error": "lsfg script not found"
+ }
+
+ content = self.lsfg_script_path.read_text()
+ config = self._parse_script_content(content)
+
+ self.log.info(f"Parsed lsfg config: {config}")
+
+ return {
+ "success": True,
+ "config": config,
+ "message": None,
+ "error": None
+ }
+
+ except (OSError, IOError) as e:
+ error_msg = f"Error reading lsfg config: {str(e)}"
+ self.log.error(error_msg)
+ return {
+ "success": False,
+ "config": None,
+ "message": None,
+ "error": str(e)
+ }
+
+ def _parse_script_content(self, content: str) -> ConfigurationData:
+ """Parse script content to extract configuration values
+
+ Args:
+ content: Script file content
+
+ Returns:
+ ConfigurationData with parsed values
+ """
+ config: ConfigurationData = {
+ "enable_lsfg": False,
+ "multiplier": 2,
+ "flow_scale": 1.0,
+ "hdr": False,
+ "perf_mode": False,
+ "immediate_mode": False
+ }
+
+ lines = content.split('\n')
+ for line in lines:
+ line = line.strip()
+
+ # Parse ENABLE_LSFG
+ if match := re.match(r'^(#\s*)?export\s+ENABLE_LSFG=(\d+)', line):
+ config["enable_lsfg"] = not bool(match.group(1)) and match.group(2) == '1'
+
+ # Parse LSFG_MULTIPLIER
+ elif match := re.match(r'^export\s+LSFG_MULTIPLIER=(\d+)', line):
+ try:
+ config["multiplier"] = int(match.group(1))
+ except ValueError:
+ pass
+
+ # Parse LSFG_FLOW_SCALE
+ elif match := re.match(r'^export\s+LSFG_FLOW_SCALE=([0-9]*\.?[0-9]+)', line):
+ try:
+ config["flow_scale"] = float(match.group(1))
+ except ValueError:
+ pass
+
+ # Parse LSFG_HDR
+ elif match := re.match(r'^(#\s*)?export\s+LSFG_HDR=(\d+)', line):
+ config["hdr"] = not bool(match.group(1)) and match.group(2) == '1'
+
+ # Parse LSFG_PERF_MODE
+ elif match := re.match(r'^(#\s*)?export\s+LSFG_PERF_MODE=(\d+)', line):
+ config["perf_mode"] = not bool(match.group(1)) and match.group(2) == '1'
+
+ # Parse MESA_VK_WSI_PRESENT_MODE
+ elif match := re.match(r'^(#\s*)?export\s+MESA_VK_WSI_PRESENT_MODE=([^\s#]+)', line):
+ config["immediate_mode"] = not bool(match.group(1)) and match.group(2) == 'immediate'
+
+ return config
+
+ def update_config(self, enable_lsfg: bool, multiplier: int, flow_scale: float,
+ hdr: bool, perf_mode: bool, immediate_mode: bool) -> ConfigurationResponse:
+ """Update lsfg script configuration
+
+ Args:
+ enable_lsfg: Whether to enable LSFG
+ multiplier: LSFG multiplier value
+ flow_scale: LSFG flow scale value
+ hdr: Whether to enable HDR
+ perf_mode: Whether to enable performance mode
+ immediate_mode: Whether to enable immediate present mode (disable vsync)
+
+ Returns:
+ ConfigurationResponse with success status
+ """
+ try:
+ # Generate script content using template
+ script_content = self._generate_script_content(
+ enable_lsfg, multiplier, flow_scale, hdr, perf_mode, immediate_mode
+ )
+
+ # Write the updated script atomically
+ self._atomic_write(self.lsfg_script_path, script_content, 0o755)
+
+ self.log.info(f"Updated lsfg script configuration: enable={enable_lsfg}, "
+ f"multiplier={multiplier}, flow_scale={flow_scale}, hdr={hdr}, "
+ f"perf_mode={perf_mode}, immediate_mode={immediate_mode}")
+
+ return {
+ "success": True,
+ "config": None,
+ "message": "lsfg configuration updated successfully",
+ "error": None
+ }
+
+ except (OSError, IOError) as e:
+ error_msg = f"Error updating lsfg config: {str(e)}"
+ self.log.error(error_msg)
+ return {
+ "success": False,
+ "config": None,
+ "message": None,
+ "error": str(e)
+ }
+
+ def _generate_script_content(self, enable_lsfg: bool, multiplier: int, flow_scale: float,
+ hdr: bool, perf_mode: bool, immediate_mode: bool) -> str:
+ """Generate script content from configuration parameters
+
+ Args:
+ enable_lsfg: Whether to enable LSFG
+ multiplier: LSFG multiplier value
+ flow_scale: LSFG flow scale value
+ hdr: Whether to enable HDR
+ perf_mode: Whether to enable performance mode
+ immediate_mode: Whether to enable immediate present mode
+
+ Returns:
+ Generated script content
+ """
+ return LSFG_SCRIPT_TEMPLATE.format(
+ enable_lsfg="export ENABLE_LSFG=1" if enable_lsfg else "# export ENABLE_LSFG=1",
+ multiplier=multiplier,
+ flow_scale=flow_scale,
+ hdr="export LSFG_HDR=1" if hdr else "# export LSFG_HDR=1",
+ perf_mode="export LSFG_PERF_MODE=1" if perf_mode else "# export LSFG_PERF_MODE=1",
+ immediate_mode="export MESA_VK_WSI_PRESENT_MODE=immediate # - disable vsync" if immediate_mode else "# export MESA_VK_WSI_PRESENT_MODE=immediate # - disable vsync"
+ )
diff --git a/py_modules/lsfg_vk/constants.py b/py_modules/lsfg_vk/constants.py
new file mode 100644
index 0000000..28246c2
--- /dev/null
+++ b/py_modules/lsfg_vk/constants.py
@@ -0,0 +1,54 @@
+"""
+Constants for the lsfg-vk plugin.
+"""
+
+from pathlib import Path
+
+# Directory paths
+LOCAL_LIB = ".local/lib"
+LOCAL_SHARE_BASE = ".local/share"
+VULKAN_LAYER_DIR = ".local/share/vulkan/implicit_layer.d"
+
+# File names
+SCRIPT_NAME = "lsfg"
+LIB_FILENAME = "liblsfg-vk.so"
+JSON_FILENAME = "VkLayer_LS_frame_generation.json"
+ZIP_FILENAME = "lsfg-vk_archlinux.zip"
+
+# File extensions
+SO_EXT = ".so"
+JSON_EXT = ".json"
+
+# Directory for the zip file
+BIN_DIR = "bin"
+
+# Lossless Scaling paths
+STEAM_COMMON_PATH = Path("steamapps/common/Lossless Scaling")
+LOSSLESS_DLL_NAME = "Lossless.dll"
+
+# Script template
+LSFG_SCRIPT_TEMPLATE = """#!/bin/bash
+
+{enable_lsfg}
+export LSFG_MULTIPLIER={multiplier}
+export LSFG_FLOW_SCALE={flow_scale}
+{hdr}
+{perf_mode}
+{immediate_mode}
+
+# Execute the passed command with the environment variables set
+exec "$@"
+"""
+
+# Environment variable names
+ENV_LSFG_DLL_PATH = "LSFG_DLL_PATH"
+ENV_XDG_DATA_HOME = "XDG_DATA_HOME"
+ENV_HOME = "HOME"
+
+# Default configuration values
+DEFAULT_MULTIPLIER = 2
+DEFAULT_FLOW_SCALE = 1.0
+DEFAULT_ENABLE_LSFG = True
+DEFAULT_HDR = False
+DEFAULT_PERF_MODE = False
+DEFAULT_IMMEDIATE_MODE = False
diff --git a/py_modules/lsfg_vk/dll_detection.py b/py_modules/lsfg_vk/dll_detection.py
new file mode 100644
index 0000000..f1dace9
--- /dev/null
+++ b/py_modules/lsfg_vk/dll_detection.py
@@ -0,0 +1,120 @@
+"""
+DLL detection service for Lossless Scaling.
+"""
+
+import os
+from pathlib import Path
+from typing import Dict, Any
+
+from .base_service import BaseService
+from .constants import (
+ ENV_LSFG_DLL_PATH, ENV_XDG_DATA_HOME, ENV_HOME,
+ STEAM_COMMON_PATH, LOSSLESS_DLL_NAME
+)
+from .types import DllDetectionResponse
+
+
+class DllDetectionService(BaseService):
+ """Service for detecting Lossless Scaling DLL"""
+
+ def check_lossless_scaling_dll(self) -> DllDetectionResponse:
+ """Check if Lossless Scaling DLL is available at the expected paths
+
+ Returns:
+ DllDetectionResponse with detection status and path information
+ """
+ try:
+ # Check environment variable first
+ dll_path = self._check_env_dll_path()
+ if dll_path:
+ return dll_path
+
+ # Check XDG_DATA_HOME path
+ xdg_path = self._check_xdg_data_home()
+ if xdg_path:
+ return xdg_path
+
+ # Check HOME/.local/share path
+ home_path = self._check_home_local_share()
+ if home_path:
+ return home_path
+
+ # DLL not found in any expected location
+ return {
+ "detected": False,
+ "path": None,
+ "source": None,
+ "message": "Lossless Scaling DLL not found in expected locations",
+ "error": None
+ }
+
+ except Exception as e:
+ error_msg = f"Error checking Lossless Scaling DLL: {str(e)}"
+ self.log.error(error_msg)
+ return {
+ "detected": False,
+ "path": None,
+ "source": None,
+ "message": None,
+ "error": str(e)
+ }
+
+ def _check_env_dll_path(self) -> DllDetectionResponse | None:
+ """Check LSFG_DLL_PATH environment variable
+
+ Returns:
+ DllDetectionResponse if found, None otherwise
+ """
+ dll_path = os.getenv(ENV_LSFG_DLL_PATH)
+ if dll_path and dll_path.strip():
+ dll_path_obj = Path(dll_path.strip())
+ if dll_path_obj.exists():
+ self.log.info(f"Found DLL via {ENV_LSFG_DLL_PATH}: {dll_path_obj}")
+ return {
+ "detected": True,
+ "path": str(dll_path_obj),
+ "source": f"{ENV_LSFG_DLL_PATH} environment variable",
+ "message": None,
+ "error": None
+ }
+ return None
+
+ def _check_xdg_data_home(self) -> DllDetectionResponse | None:
+ """Check XDG_DATA_HOME Steam directory
+
+ Returns:
+ DllDetectionResponse if found, None otherwise
+ """
+ data_dir = os.getenv(ENV_XDG_DATA_HOME)
+ if data_dir and data_dir.strip():
+ dll_path = Path(data_dir.strip()) / "Steam" / STEAM_COMMON_PATH / LOSSLESS_DLL_NAME
+ if dll_path.exists():
+ self.log.info(f"Found DLL via {ENV_XDG_DATA_HOME}: {dll_path}")
+ return {
+ "detected": True,
+ "path": str(dll_path),
+ "source": f"{ENV_XDG_DATA_HOME} Steam directory",
+ "message": None,
+ "error": None
+ }
+ return None
+
+ def _check_home_local_share(self) -> DllDetectionResponse | None:
+ """Check HOME/.local/share Steam directory
+
+ Returns:
+ DllDetectionResponse if found, None otherwise
+ """
+ home_dir = os.getenv(ENV_HOME)
+ if home_dir and home_dir.strip():
+ dll_path = Path(home_dir.strip()) / ".local" / "share" / "Steam" / STEAM_COMMON_PATH / LOSSLESS_DLL_NAME
+ if dll_path.exists():
+ self.log.info(f"Found DLL via {ENV_HOME}/.local/share: {dll_path}")
+ return {
+ "detected": True,
+ "path": str(dll_path),
+ "source": f"{ENV_HOME}/.local/share Steam directory",
+ "message": None,
+ "error": None
+ }
+ return None
diff --git a/py_modules/lsfg_vk/installation.py b/py_modules/lsfg_vk/installation.py
new file mode 100644
index 0000000..1d0e96f
--- /dev/null
+++ b/py_modules/lsfg_vk/installation.py
@@ -0,0 +1,225 @@
+"""
+Installation service for lsfg-vk.
+"""
+
+import os
+import shutil
+import zipfile
+import tempfile
+from pathlib import Path
+from typing import Dict, Any
+
+from .base_service import BaseService
+from .constants import (
+ LIB_FILENAME, JSON_FILENAME, ZIP_FILENAME, BIN_DIR,
+ SO_EXT, JSON_EXT, LSFG_SCRIPT_TEMPLATE,
+ DEFAULT_MULTIPLIER, DEFAULT_FLOW_SCALE, DEFAULT_ENABLE_LSFG,
+ DEFAULT_HDR, DEFAULT_PERF_MODE, DEFAULT_IMMEDIATE_MODE
+)
+from .types import InstallationResponse, UninstallationResponse, InstallationCheckResponse
+
+
+class InstallationService(BaseService):
+ """Service for handling lsfg-vk installation and uninstallation"""
+
+ def __init__(self, logger=None):
+ super().__init__(logger)
+
+ # File paths using constants
+ self.lib_file = self.local_lib_dir / LIB_FILENAME
+ self.json_file = self.local_share_dir / JSON_FILENAME
+
+ def install(self) -> InstallationResponse:
+ """Install lsfg-vk by extracting the zip file to ~/.local
+
+ Returns:
+ InstallationResponse with success status and message/error
+ """
+ try:
+ # Get the path to the zip file - need to go up to plugin root from py_modules/lsfg_vk/
+ plugin_dir = Path(__file__).parent.parent.parent
+ zip_path = plugin_dir / BIN_DIR / ZIP_FILENAME
+
+ # Check if the zip file exists
+ if not zip_path.exists():
+ error_msg = f"{ZIP_FILENAME} not found at {zip_path}"
+ self.log.error(error_msg)
+ return {"success": False, "error": error_msg, "message": ""}
+
+ # Create directories if they don't exist
+ self._ensure_directories()
+
+ # Extract and install files
+ self._extract_and_install_files(zip_path)
+
+ # Create the lsfg script
+ self._create_lsfg_script()
+
+ self.log.info("lsfg-vk installed successfully")
+ return {"success": True, "message": "lsfg-vk installed successfully", "error": None}
+
+ except (OSError, zipfile.BadZipFile, shutil.Error) as e:
+ error_msg = f"Error installing lsfg-vk: {str(e)}"
+ self.log.error(error_msg)
+ return {"success": False, "error": str(e), "message": ""}
+ except Exception as e:
+ # Catch unexpected errors but log them separately
+ error_msg = f"Unexpected error installing lsfg-vk: {str(e)}"
+ self.log.error(error_msg)
+ return {"success": False, "error": str(e), "message": ""}
+
+ def _extract_and_install_files(self, zip_path: Path) -> None:
+ """Extract zip file and install files to appropriate locations
+
+ Args:
+ zip_path: Path to the zip file to extract
+
+ Raises:
+ zipfile.BadZipFile: If zip file is corrupted
+ OSError: If file operations fail
+ """
+ # Destination mapping for file types
+ dest_map = {
+ SO_EXT: self.local_lib_dir,
+ JSON_EXT: self.local_share_dir
+ }
+
+ with zipfile.ZipFile(zip_path, 'r') as zip_ref:
+ with tempfile.TemporaryDirectory() as temp_dir:
+ temp_path = Path(temp_dir)
+ zip_ref.extractall(temp_path)
+
+ # Process extracted files
+ for root, dirs, files in os.walk(temp_path):
+ root_path = Path(root)
+ for file in files:
+ src_file = root_path / file
+ file_path = Path(file)
+
+ # Check if we know where this file type should go
+ dst_dir = dest_map.get(file_path.suffix)
+ if dst_dir:
+ dst_file = dst_dir / file
+ shutil.copy2(src_file, dst_file)
+ self.log.info(f"Copied {file} to {dst_file}")
+
+ def _create_lsfg_script(self) -> None:
+ """Create the lsfg script in home directory with default configuration"""
+ script_content = LSFG_SCRIPT_TEMPLATE.format(
+ enable_lsfg="export ENABLE_LSFG=1" if DEFAULT_ENABLE_LSFG else "# export ENABLE_LSFG=1",
+ multiplier=DEFAULT_MULTIPLIER,
+ flow_scale=DEFAULT_FLOW_SCALE,
+ hdr="export LSFG_HDR=1" if DEFAULT_HDR else "# export LSFG_HDR=1",
+ perf_mode="export LSFG_PERF_MODE=1" if DEFAULT_PERF_MODE else "# export LSFG_PERF_MODE=1",
+ immediate_mode="export MESA_VK_WSI_PRESENT_MODE=immediate # - disable vsync" if DEFAULT_IMMEDIATE_MODE else "# export MESA_VK_WSI_PRESENT_MODE=immediate # - disable vsync"
+ )
+
+ # Use atomic write to prevent corruption
+ self._atomic_write(self.lsfg_script_path, script_content, 0o755)
+ self.log.info(f"Created executable lsfg script at {self.lsfg_script_path}")
+
+ def check_installation(self) -> InstallationCheckResponse:
+ """Check if lsfg-vk is already installed
+
+ Returns:
+ InstallationCheckResponse with installation status and file paths
+ """
+ try:
+ lib_exists = self.lib_file.exists()
+ json_exists = self.json_file.exists()
+ script_exists = self.lsfg_script_path.exists()
+
+ self.log.info(f"Installation check: lib={lib_exists}, json={json_exists}, script={script_exists}")
+
+ return {
+ "installed": lib_exists and json_exists,
+ "lib_exists": lib_exists,
+ "json_exists": json_exists,
+ "script_exists": script_exists,
+ "lib_path": str(self.lib_file),
+ "json_path": str(self.json_file),
+ "script_path": str(self.lsfg_script_path),
+ "error": None
+ }
+
+ except Exception as e:
+ error_msg = f"Error checking lsfg-vk installation: {str(e)}"
+ self.log.error(error_msg)
+ return {
+ "installed": False,
+ "lib_exists": False,
+ "json_exists": False,
+ "script_exists": False,
+ "lib_path": str(self.lib_file),
+ "json_path": str(self.json_file),
+ "script_path": str(self.lsfg_script_path),
+ "error": str(e)
+ }
+
+ def uninstall(self) -> UninstallationResponse:
+ """Uninstall lsfg-vk by removing the installed files
+
+ Returns:
+ UninstallationResponse with success status and removed files list
+ """
+ try:
+ removed_files = []
+ files_to_remove = [self.lib_file, self.json_file, self.lsfg_script_path]
+
+ for file_path in files_to_remove:
+ if self._remove_if_exists(file_path):
+ removed_files.append(str(file_path))
+
+ if not removed_files:
+ return {
+ "success": True,
+ "message": "No lsfg-vk files found to remove",
+ "removed_files": None,
+ "error": None
+ }
+
+ self.log.info("lsfg-vk uninstalled successfully")
+ return {
+ "success": True,
+ "message": f"lsfg-vk uninstalled successfully. Removed {len(removed_files)} files.",
+ "removed_files": removed_files,
+ "error": None
+ }
+
+ except OSError as e:
+ error_msg = f"Error uninstalling lsfg-vk: {str(e)}"
+ self.log.error(error_msg)
+ return {
+ "success": False,
+ "message": "",
+ "removed_files": None,
+ "error": str(e)
+ }
+
+ def cleanup_on_uninstall(self) -> None:
+ """Clean up lsfg-vk files when the plugin is uninstalled"""
+ try:
+ self.log.info("Checking for lsfg-vk files to clean up:")
+ self.log.info(f" Library file: {self.lib_file}")
+ self.log.info(f" JSON file: {self.json_file}")
+ self.log.info(f" lsfg script: {self.lsfg_script_path}")
+
+ removed_files = []
+ files_to_remove = [self.lib_file, self.json_file, self.lsfg_script_path]
+
+ for file_path in files_to_remove:
+ try:
+ if self._remove_if_exists(file_path):
+ removed_files.append(str(file_path))
+ except OSError as e:
+ self.log.error(f"Failed to remove {file_path}: {e}")
+
+ if removed_files:
+ self.log.info(f"Cleaned up {len(removed_files)} lsfg-vk files during plugin uninstall: {removed_files}")
+ else:
+ self.log.info("No lsfg-vk files found to clean up during plugin uninstall")
+
+ except Exception as e:
+ self.log.error(f"Error cleaning up lsfg-vk files during uninstall: {str(e)}")
+ import traceback
+ self.log.error(f"Traceback: {traceback.format_exc()}")
diff --git a/py_modules/lsfg_vk/plugin.py b/py_modules/lsfg_vk/plugin.py
new file mode 100644
index 0000000..000830f
--- /dev/null
+++ b/py_modules/lsfg_vk/plugin.py
@@ -0,0 +1,159 @@
+"""
+Main plugin class for the lsfg-vk Decky Loader plugin.
+
+This plugin provides services for installing and managing the lsfg-vk
+Vulkan layer for Lossless Scaling frame generation on Steam Deck.
+"""
+
+import os
+from typing import Dict, Any
+
+from .installation import InstallationService
+from .dll_detection import DllDetectionService
+from .configuration import ConfigurationService
+
+
+class Plugin:
+ """
+ Main plugin class for lsfg-vk management.
+
+ This class provides a unified interface for installation, configuration,
+ and DLL detection services. It implements the Decky Loader plugin lifecycle
+ methods (_main, _unload, _uninstall, _migration).
+ """
+
+ def __init__(self):
+ """Initialize the plugin with all necessary services"""
+ # Initialize services - they will use decky.logger by default
+ self.installation_service = InstallationService()
+ self.dll_detection_service = DllDetectionService()
+ self.configuration_service = ConfigurationService()
+
+ # Installation methods
+ async def install_lsfg_vk(self) -> Dict[str, Any]:
+ """Install lsfg-vk by extracting the zip file to ~/.local
+
+ Returns:
+ InstallationResponse dict with success status and message/error
+ """
+ return self.installation_service.install()
+
+ async def check_lsfg_vk_installed(self) -> Dict[str, Any]:
+ """Check if lsfg-vk is already installed
+
+ Returns:
+ InstallationCheckResponse dict with installation status and paths
+ """
+ return self.installation_service.check_installation()
+
+ async def uninstall_lsfg_vk(self) -> Dict[str, Any]:
+ """Uninstall lsfg-vk by removing the installed files
+
+ Returns:
+ UninstallationResponse dict with success status and removed files
+ """
+ return self.installation_service.uninstall()
+
+ # DLL detection methods
+ async def check_lossless_scaling_dll(self) -> Dict[str, Any]:
+ """Check if Lossless Scaling DLL is available at the expected paths
+
+ Returns:
+ DllDetectionResponse dict with detection status and path info
+ """
+ return self.dll_detection_service.check_lossless_scaling_dll()
+
+ # Configuration methods
+ async def get_lsfg_config(self) -> Dict[str, Any]:
+ """Read current lsfg script configuration
+
+ Returns:
+ ConfigurationResponse dict with current configuration or error
+ """
+ return self.configuration_service.get_config()
+
+ async def update_lsfg_config(self, enable_lsfg: bool, multiplier: int, flow_scale: float,
+ hdr: bool, perf_mode: bool, immediate_mode: bool) -> Dict[str, Any]:
+ """Update lsfg script configuration
+
+ Args:
+ enable_lsfg: Whether to enable LSFG
+ multiplier: LSFG multiplier value (typically 2-4)
+ flow_scale: LSFG flow scale value (typically 0.5-2.0)
+ hdr: Whether to enable HDR
+ perf_mode: Whether to enable performance mode
+ immediate_mode: Whether to enable immediate present mode (disable vsync)
+
+ Returns:
+ ConfigurationResponse dict with success status
+ """
+ return self.configuration_service.update_config(
+ enable_lsfg, multiplier, flow_scale, hdr, perf_mode, immediate_mode
+ )
+
+ # Plugin lifecycle methods
+ async def _main(self):
+ """
+ Asyncio-compatible long-running code, executed in a task when the plugin is loaded.
+
+ This method is called by Decky Loader when the plugin starts up.
+ Currently just logs that the plugin has loaded successfully.
+ """
+ import decky
+ decky.logger.info("Lossless Scaling VK plugin loaded!")
+
+ async def _unload(self):
+ """
+ Function called first during the unload process.
+
+ This method is called by Decky Loader when the plugin is being unloaded.
+ Use this for cleanup that should happen when the plugin stops.
+ """
+ import decky
+ decky.logger.info("Lossless Scaling VK plugin unloading")
+
+ async def _uninstall(self):
+ """
+ Function called after `_unload` during uninstall.
+
+ This method is called by Decky Loader when the plugin is being uninstalled.
+ It automatically cleans up any lsfg-vk files that were installed.
+ """
+ import decky
+ decky.logger.info("Lossless Scaling VK plugin uninstalled - starting cleanup")
+
+ # Clean up lsfg-vk files when the plugin is uninstalled
+ self.installation_service.cleanup_on_uninstall()
+
+ decky.logger.info("Lossless Scaling VK plugin uninstall cleanup completed")
+
+ async def _migration(self):
+ """
+ Migrations that should be performed before entering `_main()`.
+
+ This method is called by Decky Loader for plugin migrations.
+ Currently migrates logs, settings, and runtime data from old locations.
+ """
+ import decky
+ decky.logger.info("Running Lossless Scaling VK plugin migrations")
+
+ # Migrate logs from old location
+ # ~/.config/decky-lossless-scaling-vk/lossless-scaling-vk.log -> decky.DECKY_LOG_DIR/lossless-scaling-vk.log
+ decky.migrate_logs(os.path.join(decky.DECKY_USER_HOME,
+ ".config", "decky-lossless-scaling-vk", "lossless-scaling-vk.log"))
+
+ # Migrate settings from old locations
+ # ~/homebrew/settings/lossless-scaling-vk.json -> decky.DECKY_SETTINGS_DIR/lossless-scaling-vk.json
+ # ~/.config/decky-lossless-scaling-vk/ -> decky.DECKY_SETTINGS_DIR/
+ decky.migrate_settings(
+ os.path.join(decky.DECKY_HOME, "settings", "lossless-scaling-vk.json"),
+ os.path.join(decky.DECKY_USER_HOME, ".config", "decky-lossless-scaling-vk"))
+
+ # Migrate runtime data from old locations
+ # ~/homebrew/lossless-scaling-vk/ -> decky.DECKY_RUNTIME_DIR/
+ # ~/.local/share/decky-lossless-scaling-vk/ -> decky.DECKY_RUNTIME_DIR/
+ decky.migrate_runtime(
+ os.path.join(decky.DECKY_HOME, "lossless-scaling-vk"),
+ os.path.join(decky.DECKY_USER_HOME, ".local", "share", "decky-lossless-scaling-vk"))
+
+ decky.logger.info("Lossless Scaling VK plugin migrations completed")
diff --git a/py_modules/lsfg_vk/types.py b/py_modules/lsfg_vk/types.py
new file mode 100644
index 0000000..f0ec892
--- /dev/null
+++ b/py_modules/lsfg_vk/types.py
@@ -0,0 +1,71 @@
+"""
+Type definitions for the lsfg-vk plugin responses.
+"""
+
+from typing import TypedDict, Optional, List
+
+
+class BaseResponse(TypedDict):
+ """Base response structure"""
+ success: bool
+
+
+class ErrorResponse(BaseResponse):
+ """Response structure for errors"""
+ error: str
+
+
+class MessageResponse(BaseResponse):
+ """Response structure with message"""
+ message: str
+
+
+class InstallationResponse(BaseResponse):
+ """Response for installation operations"""
+ message: str
+ error: Optional[str]
+
+
+class UninstallationResponse(BaseResponse):
+ """Response for uninstallation operations"""
+ message: str
+ removed_files: Optional[List[str]]
+ error: Optional[str]
+
+
+class InstallationCheckResponse(TypedDict):
+ """Response for installation check"""
+ installed: bool
+ lib_exists: bool
+ json_exists: bool
+ script_exists: bool
+ lib_path: str
+ json_path: str
+ script_path: str
+ error: Optional[str]
+
+
+class DllDetectionResponse(TypedDict):
+ """Response for DLL detection"""
+ detected: bool
+ path: Optional[str]
+ source: Optional[str]
+ message: Optional[str]
+ error: Optional[str]
+
+
+class ConfigurationData(TypedDict):
+ """Configuration data structure"""
+ enable_lsfg: bool
+ multiplier: int
+ flow_scale: float
+ hdr: bool
+ perf_mode: bool
+ immediate_mode: bool
+
+
+class ConfigurationResponse(BaseResponse):
+ """Response for configuration operations"""
+ config: Optional[ConfigurationData]
+ message: Optional[str]
+ error: Optional[str]