# This file is used by Makefile and declares common build rules,
# a list of common object files etc.
#

######################################################################
# The default build target: just build the residualvm executable
######################################################################

all: $(EXECUTABLE) plugins


######################################################################
# Module settings
######################################################################
#ResidualVM: added 'math':

PLUGINS :=
MODULES := test devtools base $(MODULES)

-include engines/engines.mk

# After the game specific modules follow the shared modules
MODULES += \
	gui \
	backends \
	engines \
	video \
	image \
	graphics \
	audio \
	math \
	common \
	po

ifdef USE_MT32EMU
MODULES += audio/softsynth/mt32
endif

######################################################################
# The build rules follow - normally you should have no need to
# touch whatever comes after here.
######################################################################

# Concat DEFINES and INCLUDES to form the CPPFLAGS
CPPFLAGS := $(DEFINES) $(INCLUDES)

# Include the build instructions for all modules
-include $(addprefix $(srcdir)/, $(addsuffix /module.mk,$(MODULES)))

# Depdir information
DEPDIRS = $(addsuffix $(DEPDIR),$(MODULE_DIRS))
DEPFILES =

# Make base/version.o depend on all other object files. This way if anything is
# changed, it causes version.cpp to be recompiled. This in turn ensures that
# the build date in gScummVMBuildDate is correct.
base/version.o: $(filter-out base/libbase.a,$(OBJS))

ifdef USE_ELF_LOADER
backends/plugins/elf/version.o: $(filter-out base/libbase.a,$(filter-out backends/libbackends.a,$(OBJS)))
endif

# Replace regular output with quiet messages
ifneq ($(findstring $(MAKEFLAGS),s),s)
ifneq ($(VERBOSE_BUILD),1)
ifneq ($(VERBOSE_BUILD),yes)
QUIET_CC      = @echo '   ' C '      ' $@;
QUIET_CXX     = @echo '   ' C++ '    ' $@;
QUIET_AS      = @echo '   ' AS '     ' $@;
QUIET_NASM    = @echo '   ' NASM '   ' $@;
QUIET_AR      = @echo '   ' AR '     ' $@;
QUIET_RANLIB  = @echo '   ' RANLIB ' ' $@;
QUIET_PLUGIN  = @echo '   ' PLUGIN ' ' $@;
QUIET_LINK    = @echo '   ' LINK '   ' $@;
QUIET_WINDRES = @echo '   ' WINDRES '' $@;
QUIET         = @
endif
endif
endif

# The build rule for the ResidualVM executable
$(EXECUTABLE): $(OBJS)
	$(QUIET_LINK)$(LD) $(LDFLAGS) $(PRE_OBJS_FLAGS) $+ $(POST_OBJS_FLAGS) $(LIBS) -o $@

distclean: clean clean-devtools
	$(RM) config.h config.mk config.log engines/engines.mk engines/plugins_table.h

clean:
	$(RM_REC) $(DEPDIRS)
	$(RM) $(OBJS) $(EXECUTABLE)


#
# The build rules for object files.
#

ifdef CXX_UPDATE_DEP_FLAG

# Build rule for C++ files. Makes use of CXX_UPDATE_DEP_FLAG for advanced
# dependency tracking.
%.o: %.c
	$(QUIET)$(MKDIR) $(*D)/$(DEPDIR)
	$(QUIET_CC)$(CC) $(CXX_UPDATE_DEP_FLAG) $(CFLAGS) $(CPPFLAGS) -c $(<) -o $*.o
%.o: %.cpp
	$(QUIET)$(MKDIR) $(*D)/$(DEPDIR)
	$(QUIET_CXX)$(CXX) $(CXX_UPDATE_DEP_FLAG) $(CXXFLAGS) $(CPPFLAGS) -c $(<) -o $*.o


# Build rules for Objective-C and Objective-C++ files. Strictly speaking, this is for OS X only.
%.o: %.mm
	$(QUIET)$(MKDIR) $(*D)/$(DEPDIR)
	$(QUIET_CXX)$(CXX) $(CXX_UPDATE_DEP_FLAG) $(CXXFLAGS) $(CPPFLAGS) -c $(<) -o $*.o

%.o: %.m
	$(QUIET)$(MKDIR) $(*D)/$(DEPDIR)
	$(QUIET_CXX)$(CXX) $(CXX_UPDATE_DEP_FLAG) $(CPPFLAGS) $(OBJCFLAGS) -c $(<) -o $*.o

# Build rule for assembler files with preprocessing
%.o: %.S
	$(QUIET)$(MKDIR) $(*D)/$(DEPDIR)
	$(QUIET_AS)$(CXX) $(CXX_UPDATE_DEP_FLAG) $(ASFLAGS) -c $(<) -o $*.o

else

# Dumb compile rule, for C++ compilers that don't allow dependency tracking or
# where it is broken (such as GCC 2.95).
.cpp.o:
	$(QUIET)$(MKDIR) $(*D)
	$(QUIET_CXX)$(CXX) $(CXXFLAGS) $(CPPFLAGS) -c $(<) -o $*.o

# Build rule for assembler files with preprocessing
%.o: %.S
	$(QUIET)$(MKDIR) $(*D)
	$(QUIET_AS)$(CXX) $(ASFLAGS) -c $(<) -o $*.o

endif

# Build rule for assembler files
%.o: %.s
	$(QUIET)$(MKDIR) $(*D)
	$(QUIET_AS)$(AS) $(ASFLAGS) $(<) -o $*.o

ifdef USE_NASM
# Build rule for NASM assembler files
%.o: %.asm
	$(QUIET)$(MKDIR) $(*D)
	$(QUIET_NASM)$(NASM) $(NASMFLAGS) -o $*.o $(<)
endif

# Include the dependency tracking files.
-include $(wildcard $(addsuffix /*.d,$(DEPDIRS)))

# Mark *.d files and most *.mk files as PHONY. This stops make from trying to
# recreate them (which it can't), and in particular from looking for potential
# source files. This can save quite a bit of disk access time.
.PHONY: $(wildcard $(addsuffix /*.d,$(DEPDIRS))) $(addprefix $(srcdir)/, $(addsuffix /module.mk,$(MODULES))) \
	$(srcdir)/$(port_mk) $(srcdir)/rules.mk

######################################################################
# Get the current version information
######################################################################

# AmigaOS4's grep has a problem with "./" in pathnames, so use cat piped into grep.
VERSION = $(shell cat "${srcdir}/base/internal_version.h" | grep SCUMMVM_VERSION | cut -d\" -f2)
VER_MAJOR = $(shell echo $(VERSION) | cut -d. -f 1)
VER_MINOR = $(shell echo $(VERSION) | cut -d. -f 2)
VER_PATCH = $(shell echo $(VERSION) | cut -d. -f 3 | cut -c1)
VER_EXTRA = $(shell echo $(VERSION) | cut -d. -f 3 | cut -c2-)

ifdef AMIGAOS
# Amiga needs date in specific format for the version cookie
AMIGA_DATE = $(shell gdate '+%d.%m.%Y')
base/version.o: CXXFLAGS:=$(CXXFLAGS) -DAMIGA_DATE=\"$(AMIGA_DATE)\"
endif

######################################################################
# Get git's working copy information
######################################################################

ifneq ($(shell cd $(srcdir); git rev-parse --verify HEAD 1>/dev/null 2>&1 || echo "error"),error)
GITROOT := $(srcdir)
ifeq ($(origin VER_REV), undefined)
# Are there uncommitted changes? (describe --dirty is only available since 1.6.6)
VER_DIRTY := $(shell cd $(srcdir); git update-index --refresh --unmerged 1>/dev/null 2>&1; git diff-index --quiet HEAD || echo "-dirty")
# Get the working copy base revision
#ResidualVM: --always
VER_REV := $(shell cd $(srcdir); git describe --always --long --match desc/\* | cut -d '-' -f 2-)$(VER_DIRTY)
endif
else
GITROOT := git://github.com/residualvm/residualvm.git
endif

# Define the Subversion revision if available, either autodetected or
# specified by the user, but only for base/version.cpp.
ifneq ($(origin VER_REV), undefined)
base/version.o: CXXFLAGS:=$(CXXFLAGS) -DSCUMMVM_REVISION=\"$(VER_REV)\"
endif

######################################################################
# Distribution settings
######################################################################

ifeq ($(VER_EXTRA),git)
ifeq ($(origin VER_REV), undefined)
DISTVERSION = $(shell date '+%Y-%m-%d')
else
DISTVERSION = git$(VER_REV)
endif
else
DISTVERSION = $(VERSION)
endif

DISTNAME := residualvm-$(DISTVERSION)
DISTDIR := dist
VERFILE := $(DISTDIR)/$(DISTNAME)/base/internal_version.h

# TODO git via $(GITROOT)
$(VERFILE): $(srcdir)/base/internal_version.h
	@$(RM_REC) $(DISTDIR)
	@$(MKDIR) $(DISTDIR)
	svn export $(SVNROOT) $(DISTDIR)/$(DISTNAME)
ifneq ($(origin VER_REV), undefined)
	@# Use the current SVN revision as a default for the snapshot sources
	@svn cat $(SVNROOT)/base/internal_version.h | sed -e \
		"s/^#define SCUMMVM_REVISION$$/#define SCUMMVM_REVISION \"$(VER_REV)\"/g" \
		> $(VERFILE)
endif

$(DISTDIR)/$(DISTNAME).tar.gz: $(VERFILE)
	cd $(DISTDIR); tar zcf $(DISTNAME).tar.gz $(DISTNAME)

$(DISTDIR)/$(DISTNAME).tar.bz2: $(VERFILE)
	cd $(DISTDIR); tar jcf $(DISTNAME).tar.bz2 $(DISTNAME)

$(DISTDIR)/$(DISTNAME).zip: $(VERFILE)
	cd $(DISTDIR); zip -qr9 $(DISTNAME).zip $(DISTNAME)

dist-src: \
	$(DISTDIR)/$(DISTNAME).tar.gz \
	$(DISTDIR)/$(DISTNAME).tar.bz2 \
	$(DISTDIR)/$(DISTNAME).zip
	@#RPM-src?
	@#DEB-src?

# Common files
DIST_FILES_DOCS:=$(addprefix $(srcdir)/,AUTHORS COPYING COPYING.BSD COPYING.LGPL COPYING.FREEFONT COPYING.ISC COPYING.LUA COPYING.MIT COPYING.TINYGL COPYRIGHT KNOWN_BUGS NEWS README.md)

# Themes files
DIST_FILES_THEMES=modern.zip
ifdef USE_TRANSLATION
DIST_FILES_THEMES+=translations.dat
endif
DIST_FILES_THEMES:=$(addprefix $(srcdir)/gui/themes/,$(DIST_FILES_THEMES))

# Networking files
DIST_FILES_NETWORKING=
ifdef USE_SDL_NET
DIST_FILES_NETWORKING:=$(addprefix $(srcdir)/dists/networking/,wwwroot.zip)
endif

# Engine data files
DIST_FILES_ENGINEDATA=
ifdef ENABLE_GRIM
DIST_FILES_ENGINEDATA+=residualvm-grim-patch.lab
endif
ifdef ENABLE_MONKEY4
DIST_FILES_ENGINEDATA+=residualvm-emi-patch.m4b
endif
ifdef ENABLE_MYST3
DIST_FILES_ENGINEDATA+=myst3.dat
endif
DIST_FILES_ENGINEDATA:=$(addprefix $(srcdir)/dists/engine-data/,$(DIST_FILES_ENGINEDATA))

# ResidualVM specific
# Shaders
# DIST_FILES_SHADERS=
DIST_FILES_SHADERS=
ifdef USE_OPENGL_SHADERS
ifdef ENABLE_GRIM
DIST_FILES_SHADERS+=$(wildcard $(srcdir)/engines/grim/shaders/*)
endif
ifdef ENABLE_MYST3
DIST_FILES_SHADERS+=$(wildcard $(srcdir)/engines/myst3/shaders/*)
endif
ifdef ENABLE_STARK
DIST_FILES_SHADERS+=$(wildcard $(srcdir)/engines/stark/shaders/*)
endif
endif


.PHONY: all clean distclean plugins dist-src
