e1947a9299
Add code for Alpha encoding & decoding. The alpha compression is done via backward reference counts encoded with Arithmetic encoder (TCoder). Also provided is lossy Alpha pre-processing option via level-quantizations using kNN heuristic. Change-Id: Ib6b13530c1a4ab6493edcb586ad29fe242bc1766
151 lines
4.9 KiB
Plaintext
151 lines
4.9 KiB
Plaintext
# This makefile is a simpler alternative to the autoconf-based build
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# system, for simple local building of the libraries and tools.
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# It will not install the libraries system-wide, but just create the 'cwebp'
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# and 'dwebp' tools in the examples/ directory, along with the static
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# libraries 'src/libwebp.a' and 'src/mux/libwebpmux.a'.
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#
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# To build the library and examples, use:
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# make -f makefile.unix
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# from this top directory.
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#### Customizable part ####
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# These flag assume you have libpng and libjpeg installed. If not, either
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# follow below install instructions or just comment out the next lines.
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EXTRA_FLAGS= -DWEBP_HAVE_PNG -DWEBP_HAVE_JPEG
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EXTRA_LIBS= -lpng -ljpeg -lz
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ifeq ($(strip $(shell uname)), Darwin)
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EXTRA_FLAGS += -I/opt/local/include
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EXTRA_LIBS += -L/opt/local/lib
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endif
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# To install libraries on Mac OS X:
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# 1. Install MacPorts (http://www.macports.org/install.php)
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# 2. Run "sudo port install jpeg"
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# 3. Run "sudo port install libpng"
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# To install libraries on Linux:
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# 1. Run "sudo apt-get install libjpeg62-dev"
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# 2. Run "sudo apt-get install libpng12-dev"
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# Uncomment for build for 32bit platform
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# Alternatively, you can just use the command
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# 'make -f makefile.unix EXTRA_FLAGS=-m32' to that effect.
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# EXTRA_FLAGS += -m32
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# Extra flags to enable experimental features and code
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# EXTRA_FLAGS += -DWEBP_EXPERIMENTAL_FEATURES
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# Extra flags to enable multi-threading
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EXTRA_FLAGS += -DWEBP_USE_THREAD
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EXTRA_LIBS += -lpthread
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# Extra flags to emulate C89 strictness with the full ANSI
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EXTRA_FLAGS += -Wextra -Wold-style-definition
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EXTRA_FLAGS += -Wmissing-prototypes
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EXTRA_FLAGS += -Wmissing-declarations
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EXTRA_FLAGS += -Wdeclaration-after-statement
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# EXTRA_FLAGS += -Wvla
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#### Nothing should normally be changed below this line ####
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AR = ar
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ARFLAGS = r
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CC = gcc -Isrc/ -Iexamples/ -Wall
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CFLAGS = -O3 -DNDEBUG $(EXTRA_FLAGS)
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INSTALL = install
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GROFF = /usr/bin/groff
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COL = /usr/bin/col
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LDFLAGS = $(EXTRA_LIBS) -lm
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DEC_OBJS = src/dec/frame.o src/dec/webp.o src/dec/quant.o src/dec/tree.o \
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src/dec/vp8.o src/dec/idec.o src/dec/alpha.o src/dec/layer.o \
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src/dec/io.o src/dec/buffer.o
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ENC_OBJS = src/enc/webpenc.o src/enc/syntax.o \
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src/enc/alpha.o src/enc/layer.o \
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src/enc/tree.o src/enc/config.o src/enc/frame.o \
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src/enc/quant.o src/enc/iterator.o src/enc/analysis.o \
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src/enc/cost.o src/enc/picture.o src/enc/filter.o
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DSP_OBJS = src/dsp/cpu.o src/dsp/enc.o \
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src/dsp/enc_sse2.o src/dsp/dec.o src/dsp/dec_sse2.o \
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src/dsp/dec_neon.o src/dsp/upsampling.o src/dsp/upsampling_sse2.o \
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src/dsp/yuv.o
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UTILS_OBJS = src/utils/alpha.o src/utils/bit_reader.o src/utils/bit_writer.o \
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src/utils/quant_levels.o src/utils/thread.o src/utils/tcoder.o
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OBJS = $(DEC_OBJS) $(ENC_OBJS) $(DSP_OBJS) $(UTILS_OBJS)
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MUX_OBJS = src/mux/mux.o
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HDRS = src/webp/encode.h src/enc/vp8enci.h src/enc/cost.h src/webp/mux.h \
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src/dec/vp8i.h \
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src/dsp/yuv.h src/dsp/dsp.h \
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src/utils/alpha.h src/utils/bit_writer.h src/utils/bit_reader.h \
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src/utils/thread.h src/utils/tcoder.h
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OUT_LIBS = src/libwebp.a src/mux/libwebpmux.a
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OUT_EXAMPLES = examples/cwebp examples/dwebp examples/webpmux
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OUTPUT = $(OUT_LIBS) $(OUT_EXAMPLES)
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all:ex
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%.o: %.c $(HDRS)
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$(CC) $(CFLAGS) -c $< -o $@
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src/libwebp.a: $(OBJS)
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$(AR) $(ARFLAGS) $@ $^
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src/mux/libwebpmux.a: $(MUX_OBJS)
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$(AR) $(ARFLAGS) $@ $^
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ex: $(OUT_EXAMPLES)
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examples/cwebp: examples/cwebp.o src/libwebp.a
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examples/dwebp: examples/dwebp.o src/libwebp.a
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examples/webpmux: examples/webpmux.o src/mux/libwebpmux.a src/libwebp.a
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$(OUT_EXAMPLES):
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$(CC) -o $@ $^ $(LDFLAGS)
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dist: DESTDIR := dist
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dist: all
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$(INSTALL) -m755 -d $(DESTDIR)/include/webp \
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$(DESTDIR)/doc $(DESTDIR)/lib
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$(INSTALL) -m755 -s $(OUT_EXAMPLES) $(DESTDIR)
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$(INSTALL) -m644 src/webp/*.h $(DESTDIR)/include/webp
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$(INSTALL) -m644 src/libwebp.a $(DESTDIR)/lib
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umask 022; \
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for m in man/[cd]webp.1; do \
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basenam=$$(basename $$m .1); \
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$(GROFF) -t -e -man -T utf8 $$m \
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| $(COL) -bx >$(DESTDIR)/doc/$${basenam}.txt; \
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$(GROFF) -t -e -man -T html $$m \
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| $(COL) -bx >$(DESTDIR)/doc/$${basenam}.html; \
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done
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clean:
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$(RM) ${OUTPUT} *~ \
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src/enc/*.o src/enc/*~ \
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src/dec/*.o src/dec/*~ \
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src/dsp/*.o src/dsp/*~ \
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src/utils/*.o src/utils/*~ \
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src/mux/*.o src/mux/*~ \
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examples/*.o examples/*~
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superclean: clean
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$(RM) -r .git *.log *.cache *~
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$(RM) -r .deps */.deps */*/.deps
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$(RM) -r .libs */.libs */*/.libs
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$(RM) */*.lo */*/*.lo
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$(RM) */*.la */*/*.la
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$(RM) Makefile */Makefile */*/Makefile
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$(RM) Makefile.in */Makefile.in */*/Makefile.in
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$(RM) config.log autom4te.cache libtool config.h stamp-h1
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$(RM) aclocal.m4 compile config.guess config.h.in config.sub config.status
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$(RM) configure depcomp install-sh ltmain.sh missing src/libwebp.pc
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$(RM) m4/*
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.PHONY: all clean dist ex superclean
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.SUFFIXES:
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