# This makefile is a simpler alternative to the autoconf-based build
# system, for simple local building of the libraries and tools.
# It will not install the libraries system-wide, but just create the 'cwebp'
# and 'dwebp' tools in the examples/ directory, along with the static
# libraries 'src/libwebp.a', 'src/libwebpdecoder.a', 'src/mux/libwebpmux.a' and
# 'src/demux/libwebpdemux.a'.
#
# To build the library and examples, use:
#    make -f makefile.unix
# from this top directory.

#### Customizable part ####

# These flags assume you have libpng, libjpeg, libtiff and libgif installed. If
# not, either follow the install instructions below or just comment out the next
# four lines.
EXTRA_FLAGS= -DWEBP_HAVE_PNG -DWEBP_HAVE_JPEG -DWEBP_HAVE_TIFF
DWEBP_LIBS= -lpng -lz
CWEBP_LIBS= $(DWEBP_LIBS) -ljpeg -ltiff
GIF_LIBS = -lgif

ifeq ($(strip $(shell uname)), Darwin)
  # Work around a problem linking tables marked as common symbols,
  # cf., src/enc/yuv.[hc]
  # Failure observed with: gcc 4.2.1 and 4.0.1.
  EXTRA_FLAGS += -fno-common
  EXTRA_FLAGS += -DHAVE_GLUT_GLUT_H
  EXTRA_FLAGS += -I/opt/local/include
  EXTRA_LIBS  += -L/opt/local/lib
  GL_LIBS = -framework GLUT -framework OpenGL
else
  GL_LIBS = -lglut -lGL
endif


# To install libraries on Mac OS X:
# 1. Install MacPorts (http://www.macports.org/install.php)
# 2. Run "sudo port install jpeg"
# 3. Run "sudo port install libpng"
# 4. Run "sudo port install tiff"
# 5. Run "sudo port install giflib"

# To install libraries on Linux:
# 1. Run "sudo apt-get install libjpeg62-dev"
# 2. Run "sudo apt-get install libpng12-dev"
# 3. Run "sudo apt-get install libtiff4-dev"
# 4. Run "sudo apt-get install libgif-dev"

# Uncomment for build for 32bit platform
# Alternatively, you can just use the command
# 'make -f makefile.unix EXTRA_FLAGS=-m32' to that effect.
# EXTRA_FLAGS += -m32

# Extra flags to enable experimental features and code
# EXTRA_FLAGS += -DWEBP_EXPERIMENTAL_FEATURES

# Extra flags to enable byte swap for 16 bit colorspaces.
# EXTRA_FLAGS += -DWEBP_SWAP_16BIT_CSP

# Extra flags to enable multi-threading
EXTRA_FLAGS += -DWEBP_USE_THREAD
EXTRA_LIBS += -lpthread

# Extra flags to emulate C89 strictness with the full ANSI
EXTRA_FLAGS += -Wextra -Wold-style-definition
EXTRA_FLAGS += -Wmissing-prototypes
EXTRA_FLAGS += -Wmissing-declarations
EXTRA_FLAGS += -Wdeclaration-after-statement
EXTRA_FLAGS += -Wshadow
# EXTRA_FLAGS += -Wvla

# AVX2-specific flags:
ifeq ($(HAVE_AVX2), 1)
EXTRA_FLAGS += -DWEBP_HAVE_AVX2
src/dsp/%_avx2.o: EXTRA_FLAGS += -mavx2
endif

# NEON-specific flags:
# EXTRA_FLAGS += -march=armv7-a -mfloat-abi=hard -mfpu=neon -mtune=cortex-a8
# -> seems to make the overall lib slower: -fno-split-wide-types

#### Nothing should normally be changed below this line ####

AR = ar
ARFLAGS = r
CC = gcc
CPPFLAGS = -Isrc/ -Wall
CFLAGS = -O3 -DNDEBUG $(EXTRA_FLAGS)
INSTALL = install
GROFF = /usr/bin/groff
COL = /usr/bin/col
LDFLAGS = $(EXTRA_LIBS) $(EXTRA_FLAGS) -lm

DEC_OBJS = \
    src/dec/alpha.o \
    src/dec/buffer.o \
    src/dec/frame.o \
    src/dec/idec.o \
    src/dec/io.o \
    src/dec/quant.o \
    src/dec/tree.o \
    src/dec/vp8.o \
    src/dec/vp8l.o \
    src/dec/webp.o \

DEMUX_OBJS = \
    src/demux/demux.o \

DSP_DEC_OBJS = \
    src/dsp/alpha_processing.o \
    src/dsp/cpu.o \
    src/dsp/dec.o \
    src/dsp/dec_clip_tables.o \
    src/dsp/dec_mips32.o \
    src/dsp/dec_neon.o \
    src/dsp/dec_sse2.o \
    src/dsp/lossless.o \
    src/dsp/lossless_mips32.o \
    src/dsp/lossless_neon.o \
    src/dsp/lossless_sse2.o \
    src/dsp/upsampling.o \
    src/dsp/upsampling_neon.o \
    src/dsp/upsampling_sse2.o \
    src/dsp/yuv.o \
    src/dsp/yuv_mips32.o \
    src/dsp/yuv_sse2.o \

DSP_ENC_OBJS = \
    src/dsp/enc.o \
    src/dsp/enc_avx2.o \
    src/dsp/enc_mips32.o \
    src/dsp/enc_neon.o \
    src/dsp/enc_sse2.o \

ENC_OBJS = \
    src/enc/alpha.o \
    src/enc/analysis.o \
    src/enc/backward_references.o \
    src/enc/config.o \
    src/enc/cost.o \
    src/enc/filter.o \
    src/enc/frame.o \
    src/enc/histogram.o \
    src/enc/iterator.o \
    src/enc/picture.o \
    src/enc/picture_csp.o \
    src/enc/picture_psnr.o \
    src/enc/picture_rescale.o \
    src/enc/picture_tools.o \
    src/enc/quant.o \
    src/enc/syntax.o \
    src/enc/token.o \
    src/enc/tree.o \
    src/enc/vp8l.o \
    src/enc/webpenc.o \

EX_FORMAT_DEC_OBJS = \
    examples/jpegdec.o \
    examples/metadata.o \
    examples/pngdec.o \
    examples/tiffdec.o \
    examples/webpdec.o \

EX_UTIL_OBJS = \
    examples/example_util.o \

GIF2WEBP_UTIL_OBJS = \
    examples/gif2webp_util.o \

MUX_OBJS = \
    src/mux/muxedit.o \
    src/mux/muxinternal.o \
    src/mux/muxread.o \

UTILS_DEC_OBJS = \
    src/utils/bit_reader.o \
    src/utils/color_cache.o \
    src/utils/filters.o \
    src/utils/huffman.o \
    src/utils/quant_levels_dec.o \
    src/utils/random.o \
    src/utils/rescaler.o \
    src/utils/thread.o \
    src/utils/utils.o \

UTILS_ENC_OBJS = \
    src/utils/bit_writer.o \
    src/utils/huffman_encode.o \
    src/utils/quant_levels.o \

LIBWEBPDECODER_OBJS = $(DEC_OBJS) $(DSP_DEC_OBJS) $(UTILS_DEC_OBJS)
LIBWEBP_OBJS = $(LIBWEBPDECODER_OBJS) $(ENC_OBJS) $(DSP_ENC_OBJS) \
               $(UTILS_ENC_OBJS)
LIBWEBPMUX_OBJS = $(MUX_OBJS)
LIBWEBPDEMUX_OBJS = $(DEMUX_OBJS)

HDRS_INSTALLED = \
    src/webp/decode.h \
    src/webp/demux.h \
    src/webp/encode.h \
    src/webp/mux.h \
    src/webp/mux_types.h \
    src/webp/types.h \

HDRS = \
    src/dec/alphai.h \
    src/dec/decode_vp8.h \
    src/dec/vp8i.h \
    src/dec/vp8li.h \
    src/dec/webpi.h \
    src/dsp/dsp.h \
    src/dsp/lossless.h \
    src/dsp/neon.h \
    src/dsp/yuv.h \
    src/dsp/yuv_tables_sse2.h \
    src/enc/backward_references.h \
    src/enc/cost.h \
    src/enc/histogram.h \
    src/enc/vp8enci.h \
    src/enc/vp8li.h \
    src/mux/muxi.h \
    src/utils/bit_reader.h \
    src/utils/bit_writer.h \
    src/utils/color_cache.h \
    src/utils/filters.h \
    src/utils/huffman.h \
    src/utils/huffman_encode.h \
    src/utils/quant_levels.h \
    src/utils/quant_levels_dec.h \
    src/utils/random.h \
    src/utils/rescaler.h \
    src/utils/thread.h \
    src/utils/utils.h \
    src/webp/format_constants.h \
    $(HDRS_INSTALLED) \

OUT_LIBS = examples/libexample_util.a src/libwebpdecoder.a src/libwebp.a
OUT_EXAMPLES = examples/cwebp examples/dwebp
EXTRA_EXAMPLES = examples/gif2webp examples/vwebp examples/webpmux

OUTPUT = $(OUT_LIBS) $(OUT_EXAMPLES)
ifeq ($(MAKECMDGOALS),clean)
  OUTPUT += $(EXTRA_EXAMPLES)
  OUTPUT += src/demux/libwebpdemux.a src/mux/libwebpmux.a
  OUTPUT += examples/libgif2webp_util.a
endif

ex: $(OUT_EXAMPLES)
all: ex $(EXTRA_EXAMPLES)

$(EX_FORMAT_DEC_OBJS): %.o: %.h

# special dependencies:
#   tree.c/vp8.c/bit_reader.c <-> bit_reader_inl.h, endian_inl.h
#   bit_writer.c <-> endian_inl.h
src/dec/tree.o: src/utils/bit_reader_inl.h src/utils/endian_inl.h
src/dec/vp8.o: src/utils/bit_reader_inl.h src/utils/endian_inl.h
src/utils/bit_reader.o: src/utils/bit_reader_inl.h src/utils/endian_inl.h
src/utils/bit_writer.o: src/utils/endian_inl.h

%.o: %.c $(HDRS)
	$(CC) $(CFLAGS) $(CPPFLAGS) -c $< -o $@

examples/libexample_util.a: $(EX_UTIL_OBJS)
examples/libgif2webp_util.a: $(GIF2WEBP_UTIL_OBJS)
src/libwebpdecoder.a: $(LIBWEBPDECODER_OBJS)
src/libwebp.a: $(LIBWEBP_OBJS)
src/mux/libwebpmux.a: $(LIBWEBPMUX_OBJS)
src/demux/libwebpdemux.a: $(LIBWEBPDEMUX_OBJS)

%.a:
	$(AR) $(ARFLAGS) $@ $^

examples/cwebp: examples/cwebp.o $(EX_FORMAT_DEC_OBJS)
examples/dwebp: examples/dwebp.o
examples/gif2webp: examples/gif2webp.o
examples/vwebp: examples/vwebp.o
examples/webpmux: examples/webpmux.o

examples/cwebp: examples/libexample_util.a src/libwebp.a
examples/cwebp: EXTRA_LIBS += $(CWEBP_LIBS)
examples/dwebp: examples/libexample_util.a src/libwebpdecoder.a
examples/dwebp: EXTRA_LIBS += $(DWEBP_LIBS)
examples/gif2webp: examples/libexample_util.a examples/libgif2webp_util.a
examples/gif2webp: src/mux/libwebpmux.a src/libwebp.a
examples/gif2webp: EXTRA_LIBS += $(GIF_LIBS)
examples/gif2webp: EXTRA_FLAGS += -DWEBP_HAVE_GIF
examples/vwebp: examples/libexample_util.a src/demux/libwebpdemux.a
examples/vwebp: src/libwebp.a
examples/vwebp: EXTRA_LIBS += $(GL_LIBS)
examples/vwebp: EXTRA_FLAGS += -DWEBP_HAVE_GL
examples/webpmux: examples/libexample_util.a src/mux/libwebpmux.a
examples/webpmux: src/libwebpdecoder.a

$(OUT_EXAMPLES) $(EXTRA_EXAMPLES):
	$(CC) -o $@ $^ $(LDFLAGS)

dist: DESTDIR := dist
dist: OUT_EXAMPLES += $(EXTRA_EXAMPLES)
dist: all
	$(INSTALL) -m755 -d $(DESTDIR)/include/webp \
	           $(DESTDIR)/bin $(DESTDIR)/doc $(DESTDIR)/lib
	$(INSTALL) -m755 -s $(OUT_EXAMPLES) $(DESTDIR)/bin
	$(INSTALL) -m644 $(HDRS_INSTALLED) $(DESTDIR)/include/webp
	$(INSTALL) -m644 src/libwebp.a $(DESTDIR)/lib
	$(INSTALL) -m644 src/demux/libwebpdemux.a $(DESTDIR)/lib
	$(INSTALL) -m644 src/mux/libwebpmux.a $(DESTDIR)/lib
	umask 022; \
	for m in man/[cdv]webp.1 man/gif2webp.1 man/webpmux.1; do \
	  basenam=$$(basename $$m .1); \
	  $(GROFF) -t -e -man -T utf8 $$m \
	    | $(COL) -bx >$(DESTDIR)/doc/$${basenam}.txt; \
	  $(GROFF) -t -e -man -T html $$m \
	    | $(COL) -bx >$(DESTDIR)/doc/$${basenam}.html; \
	done

clean:
	$(RM) $(OUTPUT) *~ \
              examples/*.o examples/*~ \
              src/dec/*.o src/dec/*~ \
              src/demux/*.o src/demux/*~ \
              src/dsp/*.o src/dsp/*~ \
              src/enc/*.o src/enc/*~ \
              src/mux/*.o src/mux/*~ \
              src/utils/*.o src/utils/*~ \
              src/webp/*~ man/*~ doc/*~ swig/*~ \

superclean: clean
	$(RM) -r .git *.log *.cache *~
	$(RM) -r .deps */.deps */*/.deps
	$(RM) -r .libs */.libs */*/.libs
	$(RM) */*.lo */*/*.lo
	$(RM) */*.la */*/*.la
	$(RM) Makefile */Makefile */*/Makefile
	$(RM) Makefile.in */Makefile.in */*/Makefile.in
	$(RM) config.log autom4te.cache libtool config.h stamp-h1
	$(RM) aclocal.m4 compile
	$(RM) config.guess config.h.in config.sub config.status
	$(RM) configure depcomp install-sh ltmain.sh missing src/libwebp.pc
	$(RM) m4/*

.PHONY: all clean dist ex superclean
.SUFFIXES: