[dummy_compositor] Implement dummy compositor D-Bus service. JB#46723

Performing seamless compositor hand off (such as switching from early
boot unlock ui to regular lipstick ui) might not be possible if the
compositors have non-compatible dependencies - like whether some android
services are running or not.

A dummy compositor service - that implements D-Bus interface expected
by mce, but does not even attempt to control display hw - can be used
to insert a stop gap within compositor to compositor hand off sequence
where relevant services can then be started/stopped as required.

Signed-off-by: Simo Piiroinen <simo.piiroinen@jollamobile.com>

.depend

@@ -774,6 +774,7 @@ modules/fingerprint.o:\
 	modules/fingerprint.c\
 	builtin-gconf.h\
 	datapipe.h\
+	evdev.h\
 	mce-dbus.h\
 	mce-lib.h\
 	mce-log.h\
@@ -784,6 +785,7 @@ modules/fingerprint.pic.o:\
 	modules/fingerprint.c\
 	builtin-gconf.h\
 	datapipe.h\
+	evdev.h\
 	mce-dbus.h\
 	mce-lib.h\
 	mce-log.h\
@@ -1354,6 +1356,16 @@ tools/evdev_trace.pic.o:\
 	mce-log.h\
 	tools/fileusers.h\
 
+tools/dummy_compositor.o:\
+	tools/dummy_compositor.c\
+	builtin-gconf.h\
+	mce-dbus.h\
+
+tools/dummy_compositor.pic.o:\
+	tools/dummy_compositor.c\
+	builtin-gconf.h\
+	mce-dbus.h\
+
 tools/fileusers.o:\
 	tools/fileusers.c\
 	mce-log.h\

Makefile

@@ -177,6 +177,7 @@ MODULES += $(MODULE_DIR)/packagekit.so
 # Tools to build
 TOOLS   += $(TOOLDIR)/mcetool
 TOOLS   += $(TOOLDIR)/evdev_trace
+TOOLS   += $(TOOLDIR)/dummy_compositor
 
 # Unit tests to build
 UTESTS  += $(UTESTDIR)/ut_display_conf
@@ -373,6 +374,7 @@ $(MODULE_DIR)/%.so : $(MODULE_DIR)/%.pic.o
 TOOLS_PKG_NAMES += gobject-2.0
 TOOLS_PKG_NAMES += glib-2.0
 TOOLS_PKG_NAMES += dbus-1
+TOOLS_PKG_NAMES += dbus-glib-1
 
 TOOLS_PKG_CFLAGS := $(shell $(PKG_CONFIG) --cflags $(TOOLS_PKG_NAMES))
 TOOLS_PKG_LDLIBS := $(shell $(PKG_CONFIG) --libs   $(TOOLS_PKG_NAMES))
@@ -388,6 +390,10 @@ $(TOOLDIR)/evdev_trace : CFLAGS += $(TOOLS_CFLAGS)
 $(TOOLDIR)/evdev_trace : LDLIBS += $(TOOLS_LDLIBS)
 $(TOOLDIR)/evdev_trace : $(TOOLDIR)/evdev_trace.o evdev.o $(TOOLDIR)/fileusers.o
 
+$(TOOLDIR)/dummy_compositor : CFLAGS += $(TOOLS_CFLAGS)
+$(TOOLDIR)/dummy_compositor : LDLIBS += $(TOOLS_LDLIBS)
+$(TOOLDIR)/dummy_compositor : $(TOOLDIR)/dummy_compositor.o
+
 # ----------------------------------------------------------------------------
 # UNIT TESTS
 # ----------------------------------------------------------------------------
@@ -624,6 +630,7 @@ NORMALIZE_USES_SPC =\
 	tklock.c\
 	tklock.h\
 	tools/evdev_trace.c\
+	tools/dummy_compositor.c\
 	tools/mcetool.c\
 	tools/fileusers.c\
 	tools/fileusers.h\
@@ -680,7 +687,7 @@ endif
 .SUFFIXES: .q .p
 
 %.q : %.c ; $(CC) -o $@ -E $< $(CPPFLAGS) $(MCE_CFLAGS)
-%.p : %.q ; cproto -s < $< | sed -e 's/_Bool/bool/g' | prettyproto.py
+%.p : %.q ; cproto -s < $< | sed -e 's/_Bool/bool/g' | prettyproto.py | tee $@
 
 clean::
 	$(RM) -f *.[qp] modules/*.[qp] tools/*.[qp]

rpm/mce.spec

@@ -97,6 +97,7 @@ systemctl daemon-reload || :
 %license COPYING debian/copyright
 # binaries
 %{_sbindir}/%{name}
+%{_sbindir}/dummy_compositor
 %dir %{_libdir}/%{name}
 %dir %{_libdir}/%{name}/modules
 %{_libdir}/%{name}/modules/*.so