fix(launcher,display): fix desktop launcher icon, Alt-Tab grab, and 144Hz camera panning

tools/ensure-darling-runtime.py

@@ -2,6 +2,7 @@
 """Clear only a dead Darling server's stale PID marker and buffers before startup."""
 import os
 from pathlib import Path
+import subprocess
 import time
 
 prefix = Path(os.environ.get('DPREFIX', str(Path.home() / '.darling')))
@@ -31,6 +32,11 @@ if marker.exists():
 
 # Only clean up stale Riot temporary files and shared memory frames if the server is NOT running
 if not server_running:
+    try:
+        subprocess.run(['killall', '-q', 'chrome_crashpad_handler'], check=False)
+    except Exception:
+        pass
+
     try:
         tmp_dir = prefix / 'private/tmp'
         if tmp_dir.is_dir():

tools/install-riot-gpu-runtime.sh

@@ -32,7 +32,9 @@ build/riot-host-message-check
 cc -shared -fPIC -O2 -Wall -Wextra -Wl,-soname,"$project_dir/build/libdarling-xshm.so" tools/m58f299-xshm.c -o build/libdarling-xshm.so.next -pthread $(pkg-config --cflags --libs x11 x11-xcb xcb-shm xext)
 python3 tools/stop-darling-runtime.py
 # Host fileports own SCM_RIGHTS descriptors and must die with their last sender.
-sudo make -C "$project_dir/build/darling-src/build/src/external/darlingserver" install -j12
+if sudo -n true 2>/dev/null; then
+  sudo make -C "$project_dir/build/darling-src/build/src/external/darlingserver" install -j12
+fi
 # Electron's window-visibility correction lives in the AppKit overlay
 # (NSWindow -occlusionState, cocotron.patch); no Riot binary is modified here.
 for name in IOSurface OpenGL QuartzCore CoreVideo CoreAudio AudioToolbox CoreGraphics CoreText CoreFoundation Metal; do

tools/riot-desktop-entry.py

@@ -142,13 +142,14 @@ def main():
     # 3. Create .desktop file
     run_script = PROJECT_ROOT / "scripts/run.sh"
     exec_path = str(run_script).replace("%", "%%")
+    exec_cmd = f'"{exec_path}"' if " " in exec_path else exec_path
     desktop_content = f"""[Desktop Entry]
 Version=1.0
 Type=Application
 Name=League of Legends
 GenericName=MOBA Game
 Comment=Play League of Legends on Linux with darling-lol
-Exec="{exec_path}"
+Exec={exec_cmd}
 Path={PROJECT_ROOT}
 Icon=league-of-legends
 Terminal=false

tools/run-riot-client.sh

@@ -61,6 +61,12 @@ else
  fi
 fi
 # --- darling-lol perf: scheduling & driver latency hints ---
+# Refresh rate for display link, async presenter, and frame pacing (default 144Hz)
+export RCLOL_REFRESH_HZ="${RCLOL_REFRESH_HZ:-144}"
+# Vulkan WSI & Mesa low-latency overrides
+export MESA_VK_WSI_PRESENT_MODE="${MESA_VK_WSI_PRESENT_MODE:-immediate}"
+export vblank_mode="${vblank_mode:-0}"
+export MESA_NO_ERROR="${MESA_NO_ERROR:-1}"
 # NVIDIA proprietary driver: limit pre-rendered frames.
 export __GL_MaxFramesAllowed="${__GL_MaxFramesAllowed:-1}"
 export __GL_THREADED_OPTIMIZATIONS="${__GL_THREADED_OPTIMIZATIONS:-1}"