Add GPU support on test feature

Dockerfile

@@ -20,6 +20,9 @@ RUN apk update && \
 		libvirt-daemon \
 		dbus \
 		polkit \
+		mesa \
+		mesa-dev \
+		mesa-gl \
 		virt-manager && \
 	# Compile `redir`.
 	gcc /usr/src/redir.c -o /usr/bin/redir && \

scripts/start-emulator.sh

@@ -34,6 +34,7 @@ wait_for_boot &
 echo "Starting the emulator ..."
 emulator \
   -avd android \
+  -gpu swiftshader_indirect \
   -noaudio \
   -no-boot-anim \
   -no-window \