feat: improve Ozone platform handling

build/trivalent.conf

@@ -4,41 +4,48 @@ ARCH="$(arch)"
 CHROMIUM_FLAGS=""
 FEATURES=""
 
-# NATIVE_WAYLAND=[on|off]
-case "$XDG_SESSION_TYPE" in
-   wayland)
-      NATIVE_WAYLAND="on"
-      ;;
-   x11)
-      NATIVE_WAYLAND="off"
-      ;;
-esac
-
-# ENABLE_VULKAN=[on|off]
-ENABLE_VULKAN="off"
+# USE_WAYLAND=[true|false]
+USE_WAYLAND="${USE_WAYLAND}"
+if [ "$USE_WAYLAND" == "false" ]; then
+	CHROMIUM_FLAGS+=" --ozone-platform-hint=x11"
+elif [ "$USE_WAYLAND" == "true" ] && [ "$XDG_SESSION_TYPE" == "wayland" ]; then
+	CHROMIUM_FLAGS+=" --ozone-platform-hint=wayland"
+else
+	if [ "$USE_WAYLAND" == "true" ]; then
+		echo "Wayland is not supported on X11 sessions"
+	else
+		echo "Value provided by 'USE_WAYLAND' empty or invalid, defaulting to '$XDG_SESSION_TYPE'"
+	fi
+	case "$XDG_SESSION_TYPE" in
+	   wayland)
+	      USE_WAYLAND="true"
+	      ;;
+	   x11)
+	      USE_WAYLAND="false"
+	      ;;
+	esac
+fi
+
+# ENABLE_VULKAN=[true|false]
+ENABLE_VULKAN="false"
 
 # Other architectures are not tested for and should not be included yet
 if [ "$ARCH" == "x86_64" ] ; then
-	if [ "$NATIVE_WAYLAND" == "off" ] ; then
+	if [ "$USE_WAYLAND" == "false" ]; then
 		CHROMIUM_FLAGS+=" --enable-native-gpu-memory-buffers"
 		CHROMIUM_FLAGS+=" --enable-gpu-memory-buffer-video-frames"
 		CHROMIUM_FLAGS+=" --enable-zero-copy"
-		CHROMIUM_FLAGS+=" --ignore-gpu-blocklist --disable-gpu-driver-bug-workaround"
-		CHROMIUM_FLAGS+=" --enable-gpu-rasterization"
-	
+		CHROMIUM_FLAGS+=" --ignore-gpu-blocklist"
+		CHROMIUM_FLAGS+=" --disable-gpu-driver-bug-workaround"
+
 		# Enable Vulkan
-		# (Vulkan is not supported on Wayland, it is also experimental on Linux)
-		ENABLE_VULKAN="on"
+		# (Vulkan is not supported on Wayland, it is also experimental)
+		ENABLE_VULKAN="true"
 	fi
 
-	if [ "$ENABLE_VULKAN" == "on" ] ; then
+	if [ "$ENABLE_VULKAN" == "true" ]; then
 		CHROMIUM_FLAGS+=" --use-angle=vulkan --use-vulkan"
-		FEATURES+=",Vulkan,DefaultANGLEVulkan,VulkanFromANGLE,VaapiIgnoreDriverChecks"
-	fi
-
-	# Nvidia has issues on Wayland
-	if ! command -v nvidia-smi || [ -z "$DISPLAY" ]; then
-		CHROMIUM_FLAGS+=" --ozone-platform-hint=auto"
+		FEATURES+="Vulkan,DefaultANGLEVulkan,VulkanFromANGLE,VaapiIgnoreDriverChecks"
 	fi
 fi
 

build/trivalent.sh

@@ -86,5 +86,8 @@ BWRAP_ARGS="--dev-bind / /"
 if [ -f "/etc/ld.so.preload" ]; then
   BWRAP_ARGS+=" --ro-bind /dev/null /etc/ld.so.preload"
 fi
+if [ "$USE_WAYLAND" == "true" ]; then
+  BWRAP_ARGS+=" --unshare-ipc" # prevent IPC where it isn't needed (x11 performance depends on IPC)
+fi
 
 exec /usr/bin/bwrap $BWRAP_ARGS "$HERE/$CHROMIUM_NAME" $CHROMIUM_FLAGS "$@"