#/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
# *   mupen64plus-rsp-cxd4 - Makefile                                       *
# *   Mupen64Plus homepage: https://mupen64plus.org/                        *
# *   Copyright (C) 2010 Jon Ring                                           *
# *   Copyright (C) 2008-2009 Richard Goedeken                              *
# *   Copyright (C) 2007-2008 DarkJeztr Tillin9                             *
# *                                                                         *
# *   This program is free software; you can redistribute it and/or modify  *
# *   it under the terms of the GNU General Public License as published by  *
# *   the Free Software Foundation; either version 2 of the License, or     *
# *   (at your option) any later version.                                   *
# *                                                                         *
# *   This program is distributed in the hope that it will be useful,       *
# *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
# *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
# *   GNU General Public License for more details.                          *
# *                                                                         *
# *   You should have received a copy of the GNU General Public License     *
# *   along with this program; if not, write to the                         *
# *   Free Software Foundation, Inc.,                                       *
# *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.          *
# * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
# Makefile for CXD4 RSP plugin in Mupen64plus.

# detect operating system
UNAME ?= $(shell uname -s)
OS := NONE
ifeq ("$(UNAME)","Linux")
  OS = LINUX
  SO_EXTENSION = so
  SHARED = -shared
endif
ifeq ("$(UNAME)","linux")
  OS = LINUX
  SO_EXTENSION = so
  SHARED = -shared
endif
ifneq ("$(filter GNU hurd,$(UNAME))","")
  OS = LINUX
  SO_EXTENSION = so
  SHARED = -shared
endif
ifeq ("$(UNAME)","Darwin")
  OS = OSX
  SO_EXTENSION = dylib
  SHARED = -bundle
endif
ifeq ("$(UNAME)","FreeBSD")
  OS = FREEBSD
  SO_EXTENSION = so
  SHARED = -shared
endif
ifeq ("$(UNAME)","OpenBSD")
  OS = FREEBSD
  SO_EXTENSION = so
  SHARED = -shared
endif
ifneq ("$(filter GNU/kFreeBSD kfreebsd,$(UNAME))","")
  OS = LINUX
  SO_EXTENSION = so
  SHARED = -shared
endif
ifeq ("$(patsubst MINGW%,MINGW,$(UNAME))","MINGW")
  OS = MINGW
  SO_EXTENSION = dll
  SHARED = -shared
  PIC = 0
endif
ifeq ("$(OS)","NONE")
  $(error OS type "$(UNAME)" not supported.  Please file bug report at 'https://github.com/mupen64plus/mupen64plus-core/issues')
endif

# detect system architecture
HOST_CPU ?= $(shell uname -m)
NO_ASM ?= 1
CPU := NONE
ifneq ("$(filter x86_64 amd64,$(HOST_CPU))","")
  CPU := X86
  ifeq ("$(BITS)", "32")
    ARCH_DETECTED := 64BITS_32
    PIC ?= 0
  else
    ARCH_DETECTED := 64BITS
    PIC ?= 1
  endif
endif
ifneq ("$(filter pentium i%86,$(HOST_CPU))","")
  CPU := X86
  ARCH_DETECTED := 32BITS
  PIC ?= 0
endif
ifneq ("$(filter ppc macppc socppc powerpc,$(HOST_CPU))","")
  CPU := PPC
  ARCH_DETECTED := 32BITS
  BIG_ENDIAN := 1
  PIC ?= 1
  $(warning Architecture "$(HOST_CPU)" not officially supported.')
endif
ifneq ("$(filter ppc64 powerpc64,$(HOST_CPU))","")
  CPU := PPC
  ARCH_DETECTED := 64BITS
  BIG_ENDIAN := 1
  PIC ?= 1
  $(warning Architecture "$(HOST_CPU)" not officially supported.')
endif
ifneq ("$(filter arm%,$(HOST_CPU))","")
  ifeq ("$(filter arm%b,$(HOST_CPU))","")
    CPU := ARM
    ARCH_DETECTED := 32BITS
    PIC ?= 1
    $(warning Architecture "$(HOST_CPU)" not officially supported.')
  endif
endif
ifneq ("$(filter arm64 aarch64,$(HOST_CPU))","")
  CPU := AARCH64
  ARCH_DETECTED := 64BITS
  PIC ?= 1
  $(warning Architecture "$(HOST_CPU)" not officially supported.')
endif
ifeq ("$(CPU)","NONE")
  $(error CPU type "$(HOST_CPU)" not supported.  Please file bug report at 'https://github.com/mupen64plus/mupen64plus-core/issues')
endif

# base CFLAGS, LDLIBS, and LDFLAGS
OPTFLAGS ?= -O3 -flto
WARNFLAGS ?= -Wall
CFLAGS += $(OPTFLAGS) $(WARNFLAGS) -fvisibility=hidden -I$(SRCDIR)
CPPFLAGS += -DM64P_PLUGIN_API
LDFLAGS += $(SHARED)

ifeq ($(CPU), X86)
  SSE ?= SSE2
  ifeq ($(SSE), SSE2)
    CFLAGS   += -msse2
    CPPFLAGS += -DARCH_MIN_SSE2
    POSTFIX = -sse2
  endif
  CFLAGS += -mstackrealign
endif

ifeq ($(NEON), 1)
    CFLAGS   += -mfpu=neon
    CPPFLAGS += -DUSE_SSE2NEON
endif

HLEVIDEO ?= 0
ifeq ($(HLEVIDEO), 1)
  CFLAGS += -DHLEVIDEO
endif

# Since we are building a shared library, we must compile with -fPIC on some architectures
# On 32-bit x86 systems we do not want to use -fPIC because we don't have to and it has a big performance penalty on this arch
ifeq ($(PIC), 1)
  CFLAGS += -fPIC
  LDFLAGS += -fPIC
else
  CFLAGS += -fno-PIC
  LDFLAGS += -fno-PIC
endif

ifeq ($(BIG_ENDIAN), 1)
  CFLAGS += -DM64P_BIG_ENDIAN
endif

# tweak flags for 32-bit build on 64-bit system
ifeq ($(ARCH_DETECTED), 64BITS_32)
  ifeq ($(OS), FREEBSD)
    $(error Do not use the BITS=32 option with FreeBSD, use -m32 and -m elf_i386)
  endif
  ifneq ($(OS), OSX)
    ifeq ($(OS), MINGW)
      LDFLAGS += -Wl,-m,i386pe
    else
      CFLAGS += -m32
      LDFLAGS += -Wl,-m,elf_i386
    endif
  endif
endif

ifeq ($(ARCH_DETECTED), 64BITS)
  ifeq ($(OS), MINGW)
    LDFLAGS += -Wl,-m,i386pep
  endif
endif

# set special flags per-system
ifeq ($(OS), FREEBSD)
  LDLIBS += -lc
endif
ifeq ($(OS), LINUX)
  LDLIBS += -ldl
endif
ifeq ($(OS), OSX)
OSX_SDK_PATH = $(shell xcrun --sdk macosx --show-sdk-path)

  ifeq ($(CPU), X86)
    ifeq ($(ARCH_DETECTED), 64BITS)
      CFLAGS += -pipe -arch x86_64 -mmacosx-version-min=10.6 -isysroot $(OSX_SDK_PATH)
      LDFLAGS += -arch x86_64
      LDLIBS += -ldl
    else
      CFLAGS += -pipe -mmmx -msse -fomit-frame-pointer -arch i686 -mmacosx-version-min=10.6 -isysroot $(OSX_SDK_PATH)
      LDFLAGS += -arch i686
      LDLIBS += -ldl
    endif
  endif
endif

# set mupen64plus core API header path
ifneq ("$(APIDIR)","")
  CFLAGS += "-I$(APIDIR)"
else
  TRYDIR = ../../../mupen64plus-core/src/api
  ifneq ("$(wildcard $(TRYDIR)/m64p_types.h)","")
    CFLAGS += -I$(TRYDIR)
  else
    TRYDIR = /usr/local/include/mupen64plus
    ifneq ("$(wildcard $(TRYDIR)/m64p_types.h)","")
      CFLAGS += -I$(TRYDIR)
    else
      TRYDIR = /usr/include/mupen64plus
      ifneq ("$(wildcard $(TRYDIR)/m64p_types.h)","")
        CFLAGS += -I$(TRYDIR)
      else
        $(error Mupen64Plus API header files not found! Use makefile parameter APIDIR to force a location.)
      endif
    endif
  endif
endif

# reduced compile output when running make without V=1
ifneq ($(findstring $(MAKEFLAGS),s),s)
ifndef V
	Q_CC  = @echo '    CC  '$@;
	Q_CXX = @echo '    CXX '$@;
	Q_LD  = @echo '    LD  '$@;
endif
endif

# set base program pointers and flags
CC        = $(CROSS_COMPILE)gcc
RM       ?= rm -f
INSTALL  ?= install
MKDIR ?= mkdir -p
COMPILE.c = $(Q_CC)$(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c
LINK.o = $(Q_LD)$(CC) $(CFLAGS) $(LDFLAGS) $(TARGET_ARCH)

# set special flags for given Makefile parameters
ifeq ($(DEBUG),1)
  CFLAGS += -g
  INSTALL_STRIP_FLAG ?= 
else
  CFLAGS += -DNDEBUG
  INSTALL_STRIP_FLAG ?= -s
endif

# set installation options
ifeq ($(PREFIX),)
  PREFIX := /usr/local
endif
ifeq ($(LIBDIR),)
  LIBDIR := $(PREFIX)/lib
endif
ifeq ($(PLUGINDIR),)
  PLUGINDIR := $(LIBDIR)/mupen64plus
endif

SRCDIR = ../../
OBJDIR = _obj$(POSTFIX)

# list of source files to compile
SOURCE = \
	$(SRCDIR)/su.c \
	$(SRCDIR)/vu/add.c \
	$(SRCDIR)/vu/divide.c \
	$(SRCDIR)/vu/logical.c \
	$(SRCDIR)/vu/multiply.c \
	$(SRCDIR)/vu/select.c \
	$(SRCDIR)/vu/vu.c \
	$(SRCDIR)/module.c

ifeq ($(OS),MINGW)
SOURCE += $(SRCDIR)/osal_dynamiclib_win32.c
else
SOURCE += $(SRCDIR)/osal_dynamiclib_unix.c
endif

# generate a list of object files build, make a temporary directory for them
OBJECTS := $(patsubst $(SRCDIR)/%.c, $(OBJDIR)/%.o, $(filter %.c, $(SOURCE)))
OBJECTS += $(patsubst $(SRCDIR)/%.cpp, $(OBJDIR)/%.o, $(filter %.cpp, $(SOURCE)))
OBJDIRS = $(dir $(OBJECTS))
$(shell $(MKDIR) $(OBJDIRS))

# build targets
TARGET = mupen64plus-rsp-cxd4$(POSTFIX).$(SO_EXTENSION)

targets:
	@echo "Mupen64Plus-rsp-cxd4 makefile. "
	@echo "  Targets:"
	@echo "    all           == Build Mupen64Plus rsp-cxd4 plugin"
	@echo "    clean         == remove object files"
	@echo "    rebuild       == clean and re-build all"
	@echo "    install       == Install Mupen64Plus rsp-cxd4 plugin"
	@echo "    uninstall     == Uninstall Mupen64Plus rsp-cxd4 plugin"
	@echo "  Options:"
	@echo "    BITS=32       == build 32-bit binaries on 64-bit machine"
	@echo "    APIDIR=path   == path to find Mupen64Plus Core headers"
	@echo "    OPTFLAGS=flag == compiler optimization (default: -O3)"
	@echo "    WARNFLAGS=flag == compiler warning levels (default: -Wall)"
	@echo "    PIC=(1|0)     == Force enable/disable of position independent code"
	@echo "    HLEVIDEO=(1|0) == Move task of gfx emulation to a HLE video plugins"
	@echo "    POSTFIX=name  == String added to the name of the the build (default: '')"
	@echo "    SSE=version   == Optimize for SSE technology version"
	@echo "                     (none [default on non-x86], SSE2 [default on x86])"
	@echo "    NEON=(1|0)    == Optimize for NEON technology version"
	@echo "  Install Options:"
	@echo "    PREFIX=path   == install/uninstall prefix (default: /usr/local)"
	@echo "    LIBDIR=path   == library prefix (default: PREFIX/lib)"
	@echo "    PLUGINDIR=path == path to install plugin libraries (default: LIBDIR/mupen64plus)"
	@echo "    DESTDIR=path  == path to prepend to all installation paths (only for packagers)"
	@echo "  Debugging Options:"
	@echo "    DEBUG=1       == add debugging symbols"
	@echo "    V=1           == show verbose compiler output"

all: $(TARGET)

install: $(TARGET)
	$(INSTALL) -d "$(DESTDIR)$(PLUGINDIR)"
	$(INSTALL) -m 0644 $(INSTALL_STRIP_FLAG) $(TARGET) "$(DESTDIR)$(PLUGINDIR)"

uninstall:
	$(RM) "$(DESTDIR)$(PLUGINDIR)/$(TARGET)"

clean:
	$(RM) -r _obj _obj-sse2 $(OBJDIR) mupen64plus-rsp-cxd4*.$(SO_EXTENSION) $(TARGET)

rebuild: clean all

# build dependency files
CFLAGS += -MD -MP
-include $(OBJECTS:.o=.d)

# standard build rules
$(OBJDIR)/%.o: $(SRCDIR)/%.c
	$(COMPILE.c) -o $@ $<

$(TARGET): $(OBJECTS)
	$(LINK.o) $^ $(LOADLIBES) $(LDLIBS) -o $@

.PHONY: all clean install uninstall targets
