#
# This file is a part of Pcompress, a chunked parallel multi-
# algorithm lossless compression and decompression program.
#
# Copyright (C) 2012 Moinak Ghosh. All rights reserved.
# Use is subject to license terms.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 3 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
# Lesser General Public License for more details.
#
# moinakg@belenix.org, http://moinakg.wordpress.com/
#
# This program includes partly-modified public domain source
# code from the LZMA SDK: http://www.7-zip.org/sdk.html
#

PROG= pcompress
MAINSRCS = main.c utils/utils.c allocator.c zlib_compress.c bzip2_compress.c \
	lzma_compress.c ppmd_compress.c adaptive_compress.c lzfx_compress.c \
	lz4_compress.c none_compress.c utils/xxhash.c utils/heapq.c utils/cpuid.c \
	crypto/aes/crypto_aes.c crypto/scrypt/crypto_scrypt-nosse.c \
	crypto/scrypt/sha256.c crypto/scrypt/crypto_aesctr.c crypto/crypto_utils.c
MAINHDRS = allocator.h  pcompress.h  utils/utils.h utils/xxhash.h utils/heapq.h \
	utils/cpuid.h crypto/crypto_utils.h crypto/scrypt/crypto_scrypt.h \
	crypto/scrypt/sha256.h crypto/scrypt/crypto_aesctr.h crypto/aes/crypto_aes.h
MAINOBJS = $(MAINSRCS:.c=.o)

RABINSRCS = rabin/rabin_dedup.c
RABINHDRS = rabin/rabin_dedup.h utils/utils.h
RABINOBJS = $(RABINSRCS:.c=.o)

BSDIFFSRCS = bsdiff/bsdiff.c bsdiff/bspatch.c bsdiff/rle_encoder.c
BSDIFFHDRS = bsdiff/bscommon.h utils/utils.h allocator.h
BSDIFFOBJS = $(BSDIFFSRCS:.c=.o)

LZMASRCS = lzma/LzmaEnc.c lzma/LzFind.c lzma/LzmaDec.c lzma/Threads.c lzma/LzFindMt.c
LZMAHDRS = lzma/CpuArch.h lzma/LzFind.h lzma/LzmaEnc.h lzma/Types.h \
	lzma/LzHash.h lzma/LzmaDec.h utils/utils.h lzma/LzFindMt.h lzma/Threads.h lzma/windows.h \
	lzma/Common/MyWindows.h lzma/Common/MyGuidDef.h lzma/basetyps.h
LZMAOBJS = $(LZMASRCS:.c=.o)

LZFXSRCS = lzfx/lzfx.c
LZFXHDRS = lzfx/lzfx.h
LZFXOBJS = $(LZFXSRCS:.c=.o)

LZ4SRCS = lz4/lz4.c lz4/lz4hc.c
LZ4HDRS = lz4/lz4.h lz4/lz4hc.h
LZ4OBJS = $(LZ4SRCS:.c=.o)

PPMDSRCS = lzma/Ppmd8.c lzma/Ppmd8Enc.c lzma/Ppmd8Dec.c
PPMDHDRS = lzma/Ppmd.h lzma/Ppmd8.h
PPMDOBJS = $(PPMDSRCS:.c=.o)

CRCSRCS = lzma/crc64_fast.c lzma/crc64_table.c
CRCHDRS = lzma/crc64_table_le.h lzma/crc64_table_be.h lzma/crc_macros.h
CRCOBJS = $(CRCSRCS:.c=.o)

LZPSRCS = lzp/lzp.c
LZPHDRS = lzp/lzp.h
LZPOBJS = $(LZPSRCS:.c=.o)

SKEIN_BLOCK_C = crypto/skein/skein_block.c
SKEIN_BLOCK_ASM = crypto/skein/skein_block_x64.s
SKEIN_BLOCK_SRC = @SKEIN_BLOCK@
SKEIN_BLOCK_OBJ = crypto/skein/skein_block.o
SKEINSRCS = crypto/skein/SHA3api_ref.c crypto/skein/skein.c crypto/skein/skein_debug.c
SKEINHDRS = crypto/skein/brg_endian.h crypto/skein/SHA3api_ref.h \
	crypto/skein/skein.h crypto/skein/skein_port.h crypto/skein/brg_types.h \
	crypto/skein/skein_debug.h crypto/skein/skein_iv.h
SKEINOBJS = $(SKEINSRCS:.c=.o)

SHA256_SRCS = crypto/sha2/sha256.c
SHA256_HDRS = crypto/sha2/sha256.h
SHA256ASM_SRCS = crypto/sha2/intel/sha256_avx1.asm \
	crypto/sha2/intel/sha256_sse4.asm
SHA256ASM_OBJS = $(SHA256ASM_SRCS:.asm=.o)
SHA256_OBJS = $(SHA256_SRCS:.c=.o)

YASM = @YASM@ -f x64 -f elf64 -X gnu -g dwarf2 -D LINUX
LIBBSCWRAP = libbsc_compress.c
LIBBSCWRAPOBJ = libbsc_compress.o
LIBBSCDIR = @LIBBSCDIR@
LIBBSCLFLAGS = -L$(LIBBSCDIR) -lbsc
LIBBSCLIB = @LIBBSCLIB@
LIBBSCGEN_OPT = -fopenmp
LIBBSCCPPFLAGS = -I$(LIBBSCDIR)/libbsc -DENABLE_PC_LIBBSC

BAKFILES = *~ lzma/*~ lzfx/*~ lz4/*~ rabin/*~ bsdiff/*~ lzp/*~ utils/*~ crypto/sha2/*~ \
	crypto/sha2/intel/*~ crypto/aes/*~ crypto/scrypt/*~ crypto/*~

RM = rm -f
COMMON_CPPFLAGS = -I. -I./lzma -I./lzfx -I./lz4 -I./rabin -I./bsdiff -DNODEFAULT_PROPS \
	-DFILE_OFFSET_BITS=64 -D_REENTRANT -D__USE_SSE_INTRIN__ -D_LZMA_PROB32 \
	-I./lzp @LIBBSCCPPFLAGS@ -I./crypto/skein -I./utils -I@OPENSSL_INCDIR@ \
	-I./crypto/sha2 -I./crypto/scrypt -I./crypto/aes -I./crypto @KEYLEN@ \
	@LIBBZ2_INC@ @LIBZ_INC@
COMMON_VEC_FLAGS = -ftree-vectorize
COMMON_LOOP_OPTFLAGS = $(VEC_FLAGS) -floop-interchange -floop-block
LDLIBS = -ldl -L@LIBBZ2_DIR@ -lbz2 -L@LIBZ_DIR@ -lz -lm @LIBBSCLFLAGS@ \
	-L@OPENSSL_LIBDIR@ -lcrypto -lrt
OBJS = $(MAINOBJS) $(LZMAOBJS) $(PPMDOBJS) $(LZFXOBJS) $(LZ4OBJS) $(CRCOBJS) \
$(RABINOBJS) $(BSDIFFOBJS) $(LZPOBJS) @LIBBSCWRAPOBJ@ $(SKEINOBJS) $(SKEIN_BLOCK_OBJ) \
@SHA256ASM_OBJS@ @SHA256_OBJS@

DEBUG_LINK = g++ -m64 -pthread -msse3 @LIBBSCGEN_OPT@
DEBUG_COMPILE = gcc -m64 -g -msse3 -c
DEBUG_COMPILE_cpp = g++ -m64 -g -msse3 -c
DEBUG_VEC_FLAGS = 
DEBUG_LOOP_OPTFLAGS = 
DEBUG_GEN_OPT = -O -fno-omit-frame-pointer @LIBBSCGEN_OPT@
DEBUG_RABIN_OPT = -O -fno-omit-frame-pointer
DEBUG_CPPFLAGS = $(COMMON_CPPFLAGS)

RELEASE_LINK = g++ -m64 -pthread -msse3 @LIBBSCGEN_OPT@
RELEASE_COMPILE = gcc -m64 -msse3 -c
RELEASE_COMPILE_cpp = g++ -m64 -msse3 -c
RELEASE_VEC_FLAGS = $(COMMON_VEC_FLAGS)
RELEASE_LOOP_OPTFLAGS = $(COMMON_LOOP_OPTFLAGS)
RELEASE_CPPFLAGS = $(COMMON_CPPFLAGS) -DNDEBUG
RELEASE_GEN_OPT = -O3 @LIBBSCGEN_OPT@
RELEASE_RABIN_OPT = -O2

NO_SLAB_CPPFLAGS = -DDEBUG_NO_SLAB
DEBUG_STATS_CPPFLAGS = -DDEBUG_STATS

LINK = @LINK@
COMPILE = @COMPILE@
COMPILE_cpp = @COMPILE_cpp@
VEC_FLAGS = @VEC_FLAGS@
LOOP_OPTFLAGS = @LOOP_OPTFLAGS@
CPPFLAGS = @CPPFLAGS@ @NO_SLAB_CPPFLAGS@ @DEBUG_STATS_CPPFLAGS@
GEN_OPT = @GEN_OPT@
RABIN_OPT = @RABIN_OPT@
PREFIX=@PREFIX@

all: $(PROG)

$(LZMAOBJS): $(LZMASRCS) $(LZMAHDRS)
	$(COMPILE) $(GEN_OPT) $(CPPFLAGS) $(@:.o=.c) -o $@

$(CRCOBJS): $(CRCSRCS) $(CRCHDRS)
	$(COMPILE) $(GEN_OPT) $(VEC_FLAGS) $(CPPFLAGS) $(@:.o=.c) -o $@

$(PPMDOBJS): $(PPMDSRCS) $(PPMDHDRS)
	$(COMPILE) $(GEN_OPT) $(VEC_FLAGS) $(CPPFLAGS) $(@:.o=.c) -o $@

$(RABINOBJS): $(RABINSRCS) $(RABINHDRS)
	$(COMPILE) $(RABIN_OPT) $(VEC_FLAGS) $(CPPFLAGS) $(@:.o=.c) -o $@

$(BSDIFFOBJS): $(BSDIFFSRCS) $(BSDIFFHDRS)
	$(COMPILE) $(GEN_OPT) $(VEC_FLAGS) $(CPPFLAGS) $(@:.o=.c) -o $@

$(LZFXOBJS): $(LZFXSRCS) $(LZFXHDRS)
	$(COMPILE) $(GEN_OPT) $(VEC_FLAGS) $(CPPFLAGS) $(@:.o=.c) -o $@

$(LZ4OBJS): $(LZ4SRCS) $(LZ4HDRS)
	$(COMPILE) $(GEN_OPT) $(VEC_FLAGS) $(CPPFLAGS) $(@:.o=.c) -o $@

$(LZPOBJS): $(LZPSRCS) $(LZPHDRS)
	$(COMPILE) $(GEN_OPT) $(VEC_FLAGS) $(CPPFLAGS) $(@:.o=.c) -o $@

$(SKEIN_BLOCK_OBJ): $(SKEIN_BLOCK_SRC)
	$(COMPILE) $(GEN_OPT) $(VEC_FLAGS) $(CPPFLAGS) $(SKEIN_BLOCK_SRC) -o $@

$(SKEINOBJS): $(SKEINSRCS) $(SKEINHDRS)
	$(COMPILE) $(GEN_OPT) $(VEC_FLAGS) $(CPPFLAGS) $(@:.o=.c) -o $@

$(SHA256_OBJS): $(SHA256_SRCS) $(SHA256_HDRS)
	$(COMPILE) $(GEN_OPT) $(VEC_FLAGS) $(CPPFLAGS) $(@:.o=.c) -o $@

$(SHA256ASM_OBJS): $(SHA256ASM_SRCS)
	$(YASM)	-o $@ $(@:.o=.asm)

$(LIBBSCLIB):
	(cd $(LIBBSCDIR); make)

$(LIBBSCWRAPOBJ): $(LIBBSCWRAP) $(LIBBSCLIB)
	$(COMPILE) $(GEN_OPT) $(VEC_FLAGS) $(CPPFLAGS) $(@:.o=.c) -o $@

$(MAINOBJS): $(MAINSRCS) $(MAINHDRS)
	$(COMPILE) $(GEN_OPT) $(LOOP_OPTFLAGS) $(CPPFLAGS) $(@:.o=.c) -o $@

$(PROG): $(OBJS)
	$(LINK) -o $@ $(OBJS) $(LDLIBS)

clean:
	$(RM) $(PROG) $(OBJS) $(BAKFILES)

distclean: clean
	$(RM) Makefile

install: $(PROG)
	@mkdir -p $(PREFIX)/bin
	@chmod 0755 $(PREFIX)/bin
	@cp $(PROG) $(PREFIX)/bin
	@chmod 0555 $(PREFIX)/bin/$(PROG)
	@mkdir -p $(PREFIX)/share/doc/$(PROG)
	@chmod 0755 $(PREFIX)/share $(PREFIX)/share/doc $(PREFIX)/share/doc/$(PROG)
	@cp README.md $(PREFIX)/share/doc/$(PROG)/README
	@chmod 0444 $(PREFIX)/share/doc/$(PROG)/README