# Shave and a Haircut
# (c) 2019 Epic Games
# US Patent 6720962

####################################################################
#
#		Maya Version & Location
#
####################################################################

ifndef MAYA_LOCATION
$(error "MAYA_LOCATION is not defined")
endif

ifeq ($(wildcard $(MAYA_LOCATION)),)
$(error "MAYA_LOCATION contains '$(MAYA_LOCATION)', which does not exist.")
endif

versionInfo := $(shell ../utils/getMayaAPIVersion.sh)
mayaAPI := $(word 1,$(versionInfo))
mayaVersion := $(word 2,$(versionInfo))
mayaMajorVersion := $(word 3, $(versionInfo))
mayaMinorVersion := $(word 4, $(versionInfo))
mayaDirVersion := $(word 6, $(versionInfo))

bits := 64


####################################################################
#
#		Linux Version
#
####################################################################

osVersion := $(shell ../utils/getos.sh)

ifeq ($(osVersion),)
    $(error "Operating system type not recognized.  Is /etc/issue present?")
endif

arch := $(shell ../utils/getarch.sh)


####################################################################
#
#		Compiler & Linker
#
####################################################################

#
# Some versions of Maya use non-standard versions of gcc, which are
# expected to be installed in /opt (e.g. /opt/gcc322)
#
CFLAGS		= -pipe -D_BOOL -DUNIX -DLINUX -DFUNCPROTO -D_GNU_SOURCE \
			-DREQUIRE_IOSTREAM -Wall -Wall \
			-Wno-deprecated -fno-gnu-keywords
C++		= $(shell ../utils/getg++.sh $(mayaDirVersion))

ifeq ($(C++),)
    $(error "Maya version $(mayaVersion) not supported.")
endif

CFLAGS		+= -fPIC -DBits64_ -DLINUX_64 -march=athlon64 -m64 -fpermissive \
				-Dnullptr=0

ifndef SHAVE_RMAN_SDKS
    $(error "SHAVE_RMAN_SDKS not defined.")
endif

PRMAN		= $(SHAVE_RMAN_SDKS)/21.7/maya$(mayaVersion)/linux
SHAVELIB	= ../libexe/shavelibAW-x64.a

ifdef debug
_DEBUG=1
endif

ifdef DEBUG
_DEBUG=1
endif

ifdef _DEBUG
# It's tempting to add -gstabs+ here to get more C++ specific info, but
# that confuses gdb with the result that it gives 'Cannot access memory'
# errors when you try to print local vars or member vars.
CFLAGS += -D_DEBUG -O0 -g -ggdb -fno-inline
else
CFLAGS += -O3
endif

ifdef _INSECURE
CFLAGS += -D_INSECURE
endif

ifdef _BETA
CFLAGS += -D_BETA
endif

ifdef SHAVE_PROFILE
profile = 1
endif

ifdef profile
CFLAGS += -g
endif

C++FLAGS    = $(CFLAGS) $(WARNFLAGS)

ifeq ($(shell echo '$(mayaAPI) >= 20180000' | bc),1)
    C++FLAGS += -std=c++0x
endif

INCLUDES    = -I. -I.. -I../libexe/sample/include -isystem $(PRMAN)/include -isystem $(MAYA_LOCATION)/include -isystem /usr/X11R6/include
LD          = $(C++) -shared $(C++FLAGS)
LIBS        = -L$(MAYA_LOCATION)/lib -L/usr/X11R6/lib -lOpenMaya -lOpenMayaFX -lOpenMayaRender -lOpenMayaUI -lOpenMayaAnim -lFoundation -lGLU -lGL -lpthread

######################### Qt stuff #################################
# vlad|17Mar2010
#

qtIncludeDir := $(MAYA_LOCATION)/include/qt

ifeq ($(wildcard $(qtIncludeDir)/QtGui),)
    $(error "Could not find Qt header files for Maya $(mayaVersion).")
endif

INCLUDES += -I$(qtIncludeDir)

ifeq ($(shell echo '$(mayaVersion) < 2017' | bc),1)
LIBS     += -lQtCore -lQtGui
else
LIBS     += -lQt5Core -lQt5Gui
endif

######################## procedrals ###############################
#vlad |20Jun2011

INCLUDES    += -I../procedurals/includes

####################################################################

####################################################################
#
#		Generic Build Rules
#
####################################################################

.SUFFIXES: .cpp .cc .o .so .c

.cc.o:
	$(C++) -c $(INCLUDES) $(C++FLAGS) $<

.cpp.o:
	$(C++) -c $(INCLUDES) $(C++FLAGS) $<

.cc.i:
	$(C++) -E $(INCLUDES) $(C++FLAGS) $*.cc > $*.i

.cc.so:
	-rm -f $@
	$(LD) -o $@ $(INCLUDES) $< $(LIBS)

.cpp.so:
	-rm -f $@
	$(LD) -o $@ $(INCLUDES) $< $(LIBS)

.o.so:
	-rm -f $@
	$(LD) -o $@ $< $(LIBS)


####################################################################
#
#		Specific Build Rules
#
####################################################################

SHAVEFILES = shaveNode.o shaveShadowNode.o shaveObjExporter.o \
	shaveRenderCallback.o shaveRender.o shaveTextureStore.o \
	shaveGlobals.o shaveMaya.o shaveWriteRib.o shaveBlindData.o \
	shaveUtil.o shaveCheckObjectVisibility.o shaveInfo.o \
	isSharedCmd.o shaveVertexShader.o shaveNodeCmd.o \
	shaveRenderCmd.o shaveAPIimpl.o \
	pluginImpl.o shaveXPM.o shaveIcon.o shaveIconCmd.o \
	shaveBackgroundShader.o shaveVolumeShader.o shaveItHairImpl.o \
	shaveRenderer.o shaveMayaRenderer.o \
	shaveSDKCALLBACKS.o shavePadCmd.o \
	shaveHairShape.o shaveHairUI.o shaveCallbacks.o shaveUtilCmd.o \
	shaveHairGeomIt.o shaveHairShapeAttrs.o shaveBrushCtx.o \
	shaveBrushCtxCmd.o shaveBrushManip.o shaveStyleCmd.o \
	shaveCursorCtx.o shaveCursorCtxCmd.o shaveCutCtx.o shaveCutCtxCmd.o \
	shaveWriteHairCmd.o ShavePerVertTexInfo.o \
	shaveVrayRenderer.o shaveVraySharedFunctions.o shaveVrayNode.o \
	shaveVrayCmd.o shavePack2TexCmd.o shaveExportGame.o \
	shaveGeometryOverride.o
	

ifdef _DEBUG
SHAVEFILES += shaveDebug.o
endif

ifdef _BETA
all:	shaveNode.so
else
all:	shaveNode.so libShaveAPI.so
endif

libShave.so:	$(SHAVEFILES)
	-rm -f $@
	$(LD) -o $@ $(SHAVEFILES) \
		-Wl,-Bsymbolic -Wl,--allow-shlib-undefined \
		$(SHAVELIB) $(LIBS)

shaveNode.so:	plugin.o libShave.so
	-rm -f $@
	$(LD) -o $@ plugin.o libShave.so \
		-Wl,-Bsymbolic -Wl,--allow-shlib-undefined \
		$(LIBS)

libShaveAPI.so:	shaveAPI.o shaveItHair.o libShave.so
	-rm -f $@
	$(LD) -o $@ $^ $(LIBS)

shaveAPITestCmd.so:	shaveAPITestCmd.o libShaveAPI.so
	-rm -f $@
	$(LD) -o $@ shaveAPITestCmd.o -L. -lShaveAPI

testo.so:	testo.o
	-rm -f $@
	$(LD) -o $@ testo.o $(LIBS) -Wl,-Bsymbolic \
		-Wl,--allow-shlib-undefined

force:	;

CCDEP = gcc

depend dep deps depends:	.depends

.depends:	$(SHAVEFILES:.o=.cpp) plugin.cpp Makefile.linux
	@$(CCDEP) -MM $(C++FLAGS) $(INCLUDES) $(SHAVEFILES:.o=.cpp) plugin.cpp >.depends


####################################################################
#
#			Cleanup
#
####################################################################

clean:
	-rm -f *.o

Clean:
	-rm -f *.o *.so *.bak

include .depends