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go/src/pkg/Makefile

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# Copyright 2009 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
# After editing the DIRS= list or adding imports to any Go files
# in any of those directories, run:
#
# ./deps.bash
#
# to rebuild the dependency information in Make.deps.
include ../Make.inc
all: install
DIRS=\
archive/tar\
archive/zip\
asn1\
big\
bufio\
bytes\
cmath\
compress/flate\
compress/gzip\
compress/zlib\
container/heap\
container/list\
container/ring\
container/vector\
crypto/aes\
crypto/block\
crypto/blowfish\
crypto/cast5\
crypto/elliptic\
crypto/hmac\
crypto/md4\
crypto/md5\
crypto/ocsp\
crypto/rand\
crypto/rc4\
crypto/ripemd160\
crypto/rsa\
crypto/sha1\
crypto/sha256\
crypto/sha512\
crypto/subtle\
crypto/tls\
crypto/x509\
crypto/xtea\
debug/dwarf\
debug/macho\
debug/elf\
debug/gosym\
debug/pe\
debug/proc\
ebnf\
encoding/ascii85\
encoding/base64\
encoding/binary\
encoding/git85\
encoding/hex\
encoding/pem\
exec\
exp/datafmt\
exp/draw\
exp/draw/x11\
exp/eval\
expvar\
flag\
fmt\
go/ast\
go/doc\
go/parser\
go/printer\
go/scanner\
go/token\
go/typechecker\
gob\
hash\
hash/adler32\
hash/crc32\
hash/crc64\
html\
http\
http/pprof\
image\
Basic image/jpeg decoder. This is not a complete JPEG implementation (e.g. it does not handle progressive JPEGs or restart markers), but I was able to take a photo with my phone, and view the resultant JPEG in pure Go. The decoder is simple, but slow. The Huffman decoder in particular should be easily improvable, but optimization is left to future changelists. Being able to inline functions in the inner loop should also help performance. The output is not pixel-for-pixel identical to libjpeg, although identical behavior isn't necessarily a goal, since JPEG is a lossy codec. There are at least two reasons for the discrepancy. First, the inverse DCT algorithm used is the same as Plan9's src/cmd/jpg, which has different rounding errors from libjpeg's default IDCT implementation. Note that libjpeg actually has three different IDCT implementations: one floating point, and two fixed point. Out of those four, Plan9's seemed the simplest to understand, partly because it has no #ifdef's or C macros. Second, for 4:2:2 or 4:2:0 chroma sampling, this implementation does nearest neighbor upsampling, compared to libjpeg's triangle filter (e.g. see h2v1_fancy_upsample in jdsample.c). The difference from the first reason is typically zero, but sometimes 1 (out of 256) in YCbCr space, or double that in RGB space. The difference from the second reason can be as large as 8/256 in YCbCr space, in regions of steep chroma gradients. Informal eyeballing suggests that the net difference is typically imperceptible, though. R=r CC=golang-dev, rsc https://golang.org/cl/164056
2009-12-16 16:32:17 -07:00
image/jpeg\
image/png\
index/suffixarray\
io\
io/ioutil\
json\
log\
math\
mime\
mime/multipart\
net\
net/dict\
net/textproto\
netchan\
os\
os/signal\
patch\
path\
rand\
reflect\
regexp\
rpc\
rpc/jsonrpc\
runtime\
runtime/cgo\
runtime/pprof\
scanner\
smtp\
sort\
strconv\
strings\
sync\
syscall\
syslog\
tabwriter\
template\
testing\
testing/iotest\
testing/quick\
testing/script\
time\
try\
unicode\
utf16\
utf8\
websocket\
xml\
../cmd/cgo\
../cmd/ebnflint\
../cmd/godoc\
../cmd/gofmt\
../cmd/goinstall\
../cmd/govet\
../cmd/goyacc\
../cmd/hgpatch\
ifeq ($(GOOS),linux)
DIRS+=\
os/inotify\
endif
ifeq ($(GOOS),windows)
DIRS:=$(filter-out runtime/cgo,$(DIRS))
endif
NOTEST=\
debug/proc\
exp/draw/x11\
go/ast\
go/doc\
go/token\
hash\
http/pprof\
image\
Basic image/jpeg decoder. This is not a complete JPEG implementation (e.g. it does not handle progressive JPEGs or restart markers), but I was able to take a photo with my phone, and view the resultant JPEG in pure Go. The decoder is simple, but slow. The Huffman decoder in particular should be easily improvable, but optimization is left to future changelists. Being able to inline functions in the inner loop should also help performance. The output is not pixel-for-pixel identical to libjpeg, although identical behavior isn't necessarily a goal, since JPEG is a lossy codec. There are at least two reasons for the discrepancy. First, the inverse DCT algorithm used is the same as Plan9's src/cmd/jpg, which has different rounding errors from libjpeg's default IDCT implementation. Note that libjpeg actually has three different IDCT implementations: one floating point, and two fixed point. Out of those four, Plan9's seemed the simplest to understand, partly because it has no #ifdef's or C macros. Second, for 4:2:2 or 4:2:0 chroma sampling, this implementation does nearest neighbor upsampling, compared to libjpeg's triangle filter (e.g. see h2v1_fancy_upsample in jdsample.c). The difference from the first reason is typically zero, but sometimes 1 (out of 256) in YCbCr space, or double that in RGB space. The difference from the second reason can be as large as 8/256 in YCbCr space, in regions of steep chroma gradients. Informal eyeballing suggests that the net difference is typically imperceptible, though. R=r CC=golang-dev, rsc https://golang.org/cl/164056
2009-12-16 16:32:17 -07:00
image/jpeg\
net/dict\
rand\
runtime/cgo\
runtime/pprof\
syscall\
testing\
testing/iotest\
try\
../cmd/cgo\
../cmd/ebnflint\
../cmd/godoc\
../cmd/gofmt\
../cmd/goinstall\
../cmd/govet\
../cmd/goyacc\
../cmd/hgpatch\
NOBENCH=\
container/vector\
# Disable tests that depend on an external network.
ifeq ($(DISABLE_NET_TESTS),1)
NOTEST+=http net
endif
# Disable tests that NaCl cannot run yet.
ifeq ($(GOOS),nacl)
NOTEST+=archive/tar # no pipe
NOTEST+=archive/zip # no pread
NOTEST+=debug/dwarf # no pread
NOTEST+=debug/macho # no pread
NOTEST+=debug/elf # no pread
NOTEST+=exec # no pipe
NOTEST+=http # no network
NOTEST+=log # no runtime.Caller
NOTEST+=net # no network
NOTEST+=netchan # no network
NOTEST+=os # many things unimplemented
NOTEST+=os/signal # no signals
NOTEST+=path # tree walking does not work
NOTEST+=rpc # no network
NOTEST+=syslog # no network
NOTEST+=time # no syscall.Kill, syscall.SIGCHLD for sleep tests
NOTEST+=websocket # no network
endif
# Disable tests that windows cannot run yet.
ifeq ($(GOOS),windows)
NOTEST+=os/signal # no signals
NOTEST+=path # tree walking does not work
NOTEST+=syslog # no network
NOTEST+=time # no syscall.Kill, syscall.SIGCHLD for sleep tests
endif
TEST=\
$(filter-out $(NOTEST),$(DIRS))
BENCH=\
$(filter-out $(NOBENCH),$(TEST))
clean.dirs: $(addsuffix .clean, $(DIRS))
install.dirs: $(addsuffix .install, $(DIRS))
nuke.dirs: $(addsuffix .nuke, $(DIRS))
test.dirs: $(addsuffix .test, $(TEST))
bench.dirs: $(addsuffix .bench, $(BENCH))
%.clean:
+cd $* && gomake clean
%.install:
+cd $* && gomake install
%.nuke:
+cd $* && gomake nuke
%.test:
+cd $* && gomake test
%.bench:
+cd $* && gomake bench
clean: clean.dirs
install: install.dirs
test: test.dirs
bench: bench.dirs ../../test/garbage.bench
nuke: nuke.dirs
rm -rf "$(GOROOT)"/pkg/*
deps:
./deps.bash
echo-dirs:
@echo $(DIRS)
-include Make.deps
runtime/cgo.install: ../cmd/cgo.install