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"""
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"
)
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