# This file is part of "12bits", a filter plugin for Adobe Photoshop
# Copyright (C) 2004-2010 Toby Thain, toby@telegraphics.com.au

# 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

# GNU Makefile
# builds Win32 DLL and CS2/Mac Mach-O plugin bundle

# by Toby Thain <toby@telegraphics.com.au>


# ---------- variables & flags ----------

EXEC = 12bits
VARIANTS = dither no_dither

VERSION := $(shell sed -n -E 's/^.*VERSION_STR[[:blank:]]+\"([^"]*)\"/\1/p' version.h)

MINGW_CC = i386-mingw32msvc-gcc
DLLWRAP  = i386-mingw32msvc-dllwrap
WINDRES  = i386-mingw32msvc-windres

PSAPI = "../adobe_photoshop_cs5_sdk_mac/photoshopapi"

CFLAGS += -O2 -W -Wall -Wno-main -Wno-unused-parameter
CPPFLAGS += -I$(PSAPI)/Pica_sp -I$(PSAPI)/Photoshop -I$(PSAPI)/General \
			-I../common/adobeplugin -I../common/tt


# ---------- source & object files ----------

# where to find .c source files
vpath %.c ../common/tt ../common/adobeplugin

# object files for each platform
OBJ_OSX := $(addprefix obj/,     str.o ui_mac.o ui_compat_mac.o ui_cocoa.o dbg_mac.o )
OBJ_W32 := $(addprefix obj_w32/, str.o ui_win.o dbg_win.o dllmain.o )


# ---------- executables ----------

# parts of Mac OS X plugin bundle to build
# Adobe's plugs use .plugin extension
BUNDLE         := $(addprefix 12bits_, $(addsuffix .plugin, $(VARIANTS)))
PLUGIN_OSX     := $(addprefix 12bits_, $(addsuffix .plugin/Contents/MacOS/$(EXEC), $(VARIANTS)))
PLUGIN_RSRC    := $(addprefix 12bits_, $(addsuffix .plugin/Contents/Resources/$(EXEC).rsrc, $(VARIANTS)))
PLUGIN_PLIST   := $(addprefix 12bits_, $(addsuffix .plugin/Contents/Info.plist, $(VARIANTS)))
PLUGIN_PKGINFO := $(addprefix 12bits_, $(addsuffix .plugin/Contents/PkgInfo, $(VARIANTS)))

PLUGIN_PARTS = $(PLUGIN_OSX) $(PLUGIN_RSRC) $(PLUGIN_PLIST) $(PLUGIN_PKGINFO)
DISTDMG = dist/$(EXEC)-$(VERSION).dmg

$(PLUGIN_OSX) : CFLAGS   += $(ARCH) -fpascal-strings
$(PLUGIN_OSX) : LDFLAGS  += $(ARCH)
$(PLUGIN_OSX) : CPPFLAGS += -DMAC_ENV -DMACMACHO -Dmacintosh \
							-I/Developer/Headers/FlatCarbon

# Win32 plugin DLL to build
PLUGIN_W32 = $(addprefix 12bits_, $(addsuffix .8bf, $(VARIANTS)))
DISTZIP = dist/$(EXEC)-$(VERSION)-win.zip

$(PLUGIN_W32) : CPPFLAGS += -DWIN_ENV
$(PLUGIN_W32) : CC = $(MINGW_CC)


# ---------- targets ----------

.PHONY : thin cs2 cs3 cs5 clean dmg dll zip

# targets for OS X Mach-O (bundle) format runtimes:
# 'thin' - single architecture, of build host
# 'cs2' - PowerPC only
# 'cs3' - Universal (PPC & Intel architectures; CS3 and CS4)
# 'cs5' - 32-bit and 64-bit Intel
thin cs2 cs3 cs5 : $(PLUGIN_PARTS) 

# Min system for CS2: Mac OS X v.10.2.8 
cs2 : ARCH = -arch ppc
cs2 : CFLAGS   += -isysroot /Developer/SDKs/MacOSX10.2.8.sdk -mmacosx-version-min=10.2
cs2 : LDFLAGS  += -Wl,-syslibroot,/Developer/SDKs/MacOSX10.2.8.sdk -mmacosx-version-min=10.2

# See: http://developer.apple.com/documentation/Porting/Conceptual/PortingUnix/compiling/chapter_4_section_3.html#//apple_ref/doc/uid/TP40002850-BAJCFEBA
# gcc 4.2 (OS X 10.6) has trouble building the universal plugin:
# Min system for CS3: Mac OS X v.10.4.8
cs3 : CC = /usr/bin/gcc-4.0
cs3 : ARCH = -arch ppc -arch i386
cs3 : CFLAGS   += -isysroot /Developer/SDKs/MacOSX10.4u.sdk -mmacosx-version-min=10.4
cs3 : LDFLAGS  += -Wl,-syslibroot,/Developer/SDKs/MacOSX10.4u.sdk -mmacosx-version-min=10.4

cs5 : ARCH = -arch i386 -arch x86_64
cs5 : CFLAGS   += -isysroot /Developer/SDKs/MacOSX10.5.sdk -mmacosx-version-min=10.5
cs5 : LDFLAGS  += -Wl,-syslibroot,/Developer/SDKs/MacOSX10.5.sdk -mmacosx-version-min=10.5

REZFLAGS += $(ARCH)

$(BUNDLE) :
	mkdir -p $@
	/Developer/Tools/SetFile -a B $@

# insert correct executable name and version string in bundle's Info.plist
12bits_dither.plugin/Contents/Info.plist    : VARIANT = dither
12bits_no_dither.plugin/Contents/Info.plist : VARIANT = no_dither

$(PLUGIN_PLIST) : Info.plist.tmpl version.h
	mkdir -p $(dir $@)
	sed -e s/%VERSION_STR%/$(VERSION)/ \
		-e s/%EXEC%/$(EXEC)/ \
		-e s/%VARIANT%/$(VARIANT)/ $< > $@

$(PLUGIN_PKGINFO) :
	mkdir -p $(dir $@)
	printf 8BFM8BIM > $@


dll : $(PLUGIN_W32)


clean :
	rm -fr obj/*.o obj_w32/*.o $(PLUGIN_W32) $(BUNDLE)


dmg : $(DISTDMG)

# create an Apple disk image (dmg) archive of the distribution kit
$(DISTDMG) : $(PLUGIN_PARTS) dist/README.txt dist/gpl.html
	DIR=`mktemp -d $(EXEC)-XXXX`; \
		cp -Rp dist/README.txt dist/gpl.html $(BUNDLE) $$DIR; \
		hdiutil create -srcfolder $$DIR -ov -volname "$(EXEC) $(VERSION)" \
				-imagekey zlib-level=9 -fs HFS+ $@; \
		rm -fr $$DIR
	@ ls -l $@


zip : $(DISTZIP)

$(DISTZIP) : $(PLUGIN_W32) dist/README.txt dist/gpl.html
	zip -j -9 -r $@ $^
	ls -l $@

dist/gpl.html :
	curl http://www.gnu.org/licenses/gpl.html | \
		sed -e 's%</HEAD>%<BASE HREF="http://www.gnu.org/"> </HEAD>%' \
			-e 's%</head>%<BASE HREF="http://www.gnu.org/"> </HEAD>%' > $@


# ---------- compile rules ----------

obj/main_dither.o obj_w32/main_dither.o obj_w32/res_dither.o : CPPFLAGS += -DDITHER

obj/%.o : %.c ; $(CC) -o $@ -c $< $(CFLAGS) $(CPPFLAGS)
obj/%.o : %.m ; $(CC) -o $@ -c $< $(CFLAGS) $(CPPFLAGS)
obj/main_%.o : main.c ; $(CC) -o $@ -c $< $(CFLAGS) $(CPPFLAGS)

obj_w32/%.o : %.c
	$(MINGW_CC) -o $@ -c $< $(CFLAGS) $(CPPFLAGS)
obj_w32/main_%.o : main.c
	$(MINGW_CC) -o $@ -c $< $(CFLAGS) $(CPPFLAGS)

# note dependencies on version.h:

obj_w32/res_%.o : PiPL_%.rc version.h
	$(WINDRES) -o $@ -i $< $(CPPFLAGS)

12bits_dither.plugin/Contents/Resources/$(EXEC).rsrc : REZFLAGS += -d DITHER

# compile Mac resources (into data fork of .rsrc file)
$(PLUGIN_RSRC) : $(BUNDLE) PiPL_macho.r ui_mac.r ui.h version.h
	mkdir -p $(dir $@)
	/Developer/Tools/Rez -o $@ -useDF $(REZFLAGS) $(filter %.r, $^) \
		-i /Developer/Headers/FlatCarbon \
		-i $(PSAPI)/Resources \
		-i $(PSAPI)/Photoshop
	ls -l $@


# ---------- link rules ----------

# link OS X Mach-O executable
12bits_%.plugin/Contents/MacOS/$(EXEC) : 12bits_%.plugin exports.exp obj/main_%.o $(OBJ_OSX)
	mkdir -p $(dir $@)
	$(CC) -bundle -o $@ $(filter %.o, $^) $(LDFLAGS) \
		-exported_symbols_list exports.exp \
		-framework Carbon -framework System -framework AppKit
	ls -l $@

# link Win32 DLL
12bits_%.8bf : exports.def obj_w32/main_%.o obj_w32/res_%.o $(OBJ_W32)
	$(DLLWRAP) -o $@ -def $^ -mwindows -s
	ls -l $@


# --------------------