Add default light profile for PortMaster

scripts/build_portmaster.sh

@@ -140,7 +140,10 @@ The package requires an ARM64 device, two analog sticks, GLIBC 2.28 or newer,
 and the \`weston_pkg_0.2\` runtime.
 
 Save data and device-local configuration remain under \`netfishing/conf/\`.
-See \`netfishing/licenses/\` for bundled credits and license information.
+PortMaster launches use the light performance profile by default. Put the word
+\`normal\` in \`netfishing/conf/performance_profile\` to opt a capable device
+into the normal rendering profile. See \`netfishing/licenses/\` for bundled
+credits and license information.
 EOF
 
 (
@@ -162,6 +165,10 @@ grep -q '"version": 4' "${STAGE_ROOT}/port.json"
 grep -q '"name": "netfishing.zip"' "${STAGE_ROOT}/port.json"
 grep -q '^# PORTMASTER: netfishing.zip, NETfishing.sh$' \
   "${STAGE_ROOT}/NETfishing.sh"
+grep -Fq 'PROFILE_PATH="$CONFDIR/performance_profile"' \
+  "${STAGE_ROOT}/NETfishing.sh"
+grep -Fq 'NETFISHING_PERFORMANCE_PROFILE=light' \
+  "${STAGE_ROOT}/NETfishing.sh"
 if grep -q 'GPTOKEYB' "${STAGE_ROOT}/NETfishing.sh"; then
   echo "GPTOKEYB must not be enabled for NETfishing." >&2
   exit 1

scripts/portmaster/NETfishing.sh

@@ -78,17 +78,36 @@ fi
 
 NETFISHING_GODOT_OPTIONS=()
 NETFISHING_GAME_ENVIRONMENT=()
-DEVICE_COMPATIBILITY=""
-if [[ -r /proc/device-tree/compatible ]]; then
-	DEVICE_COMPATIBILITY="$(tr '\0' ' ' </proc/device-tree/compatible)"
-elif [[ -r /sys/firmware/devicetree/base/compatible ]]; then
-	DEVICE_COMPATIBILITY="$(
-		tr '\0' ' ' </sys/firmware/devicetree/base/compatible
-	)"
+PERFORMANCE_PROFILE="${NETFISHING_PERFORMANCE_PROFILE:-}"
+PROFILE_PATH="$CONFDIR/performance_profile"
+if [[ -z "$PERFORMANCE_PROFILE" && -r "$PROFILE_PATH" ]]; then
+	IFS= read -r PERFORMANCE_PROFILE < "$PROFILE_PATH" || true
+	PERFORMANCE_PROFILE="${PERFORMANCE_PROFILE%$'\r'}"
 fi
-case "$DEVICE_COMPATIBILITY" in
-	*allwinner,h616*|*sun50iw9p1*|*allwinner,sun50i-h700*)
-		NETFISHING_GAME_ENVIRONMENT+=("NETFISHING_LOW_END=1")
+case "$PERFORMANCE_PROFILE" in
+	normal)
+		NETFISHING_GAME_ENVIRONMENT+=(
+			"NETFISHING_PERFORMANCE_PROFILE=normal"
+		)
+		;;
+	light|"")
+		NETFISHING_GAME_ENVIRONMENT+=(
+			"NETFISHING_PERFORMANCE_PROFILE=light"
+			"NETFISHING_LOW_END=1"
+		)
+		NETFISHING_GODOT_OPTIONS+=(
+			--single-window
+			--disable-vsync
+			--max-fps 30
+			--audio-output-latency 40
+		)
+		;;
+	*)
+		echo "Unknown performance profile '$PERFORMANCE_PROFILE'; using light." >&2
+		NETFISHING_GAME_ENVIRONMENT+=(
+			"NETFISHING_PERFORMANCE_PROFILE=light"
+			"NETFISHING_LOW_END=1"
+		)
 		NETFISHING_GODOT_OPTIONS+=(
 			--single-window
 			--disable-vsync

scripts/run_validations.sh

@@ -30,6 +30,7 @@ readonly -a QUICK_TESTS=(
 
 readonly -a RUNTIME_TESTS=(
 	"tests/inventory_notepad_art_validation.gd"
+	"tests/light_performance_profile_validation.gd"
 	"tests/logbook_runtime_validation.gd"
 	"tests/player_experience_ui_validation.gd"
 	"tests/title_credits_validation.gd"