Sérgio M. Basto
9 years ago
parent
256ecbdca0
commit
5b1ae1eae4
@ -1,188 +0,0 @@
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diff --git a/Makefile b/Makefile
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index 3d41182..0fa7517 100644
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--- a/Makefile
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+++ b/Makefile
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@@ -12,6 +12,7 @@ OBJS += $(COCOA_OBJS)
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endif
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STATICLIB = lib/libimagequant.a
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+SHAREDLIB = lib/libimagequant.so
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DISTFILES = *.[chm] pngquant.1 Makefile configure README.md INSTALL CHANGELOG COPYRIGHT
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TARNAME = pngquant-$(VERSION)
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@@ -32,6 +33,11 @@ staticlib:
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$(STATICLIB): config.mk staticlib
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+sharedlib:
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+ $(MAKE) -C lib shared
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+
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+$(SHAREDLIB): config.mk sharedlib
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+
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$(OBJS): $(wildcard *.h) config.mk
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rwpng_cocoa.o: rwpng_cocoa.m
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@@ -46,6 +52,15 @@ $(TESTBIN): test/test.o $(STATICLIB)
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test: $(BIN) $(TESTBIN)
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./test/test.sh ./test $(BIN) $(TESTBIN)
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+bin.shared: $(OBJS) $(SHAREDLIB)
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+ $(CC) $^ $(CFLAGS) $(LDFLAGS) -o $(BIN)
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+
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+testbin.shared: test/test.o $(SHAREDLIB)
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+ $(CC) $^ $(CFLAGS) $(LDFLAGS) -o $(TESTBIN)
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+
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+test.shared: bin.shared testbin.shared
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+ ./test/test.sh ./test $(BIN) $(TESTBIN)
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+
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dist: $(TARFILE)
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$(TARFILE): $(DISTFILES)
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@@ -57,14 +72,15 @@ $(TARFILE): $(DISTFILES)
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rm -rf $(TARNAME)
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-shasum $(TARFILE)
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-install: $(BIN) pngquant.1
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+install: $(BIN) $(BIN).1
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-mkdir -p '$(BINPREFIX)'
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-mkdir -p '$(MANPREFIX)/man1'
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install -m 0755 -p '$(BIN)' '$(BINPREFIX)/$(BIN)'
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- cp pngquant.1 '$(MANPREFIX)/man1/'
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+ install -m 0644 -p '$(BIN).1' '$(MANPREFIX)/man1/'
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uninstall:
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rm -f '$(BINPREFIX)/$(BIN)'
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+ rm -f '$(MANPREFIX)/man1/$(BIN).1'
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clean:
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$(MAKE) -C lib clean
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diff --git a/README.md b/README.md
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index cbb3e6b..2ddb95d 100644
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--- a/README.md
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+++ b/README.md
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@@ -1,11 +1,11 @@
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#pngquant 2
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-This is the official `pngquant` and `libimagequant`.
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+[This](https://github.com/pornel/pngquant) is the official `pngquant` and `libimagequant`.
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-[pngquant](http://pngquant.org) converts 24/32-bit RGBA PNGs to 8-bit palette with *alpha channel preserved*.
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-Such images are compatible with all modern browsers, and a special compatibility setting exists which helps transparency degrade well in Internet Explorer 6.
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+[pngquant](https://pngquant.org) converts 24/32-bit RGBA PNGs to 8-bit palette with *alpha channel preserved*.
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+Such images are fully standards-compliant and are supported by all web browsers.
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-Quantized files are often 40-70% smaller than their 24/32-bit version.
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+Quantized files are often 60-80% smaller than their 24/32-bit versions.
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This utility works on Linux, Mac OS X and Windows.
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@@ -14,7 +14,7 @@ This utility works on Linux, Mac OS X and Windows.
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- batch conversion of multiple files: `pngquant *.png`
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- Unix-style stdin/stdout chaining: `… | pngquant - | …`
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-To further reduce file size, try [optipng](http://optipng.sourceforge.net) or [ImageOptim](http://imageoptim.pornel.net).
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+To further reduce file size, try [optipng](http://optipng.sourceforge.net) or [ImageOptim](https://imageoptim.com).
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##Improvements since 1.0
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@@ -28,16 +28,16 @@ Generated files are both smaller and look much better.
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- feedback loop that repeats median cut for poorly quantized colors
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- additional colormap improvement using Voronoi iteration
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- supports much larger number of colors in input images without degradation of quality
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- - gamma correction (output is always generated with gamma 2.2 for web compatibility)
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+ - gamma correction and optional color profile support (output is always in gamma 2.2 for web compatibility)
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* More flexible commandline usage
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- - number of colors defaults to 256
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+ - number of colors defaults to 256, and can be set automatically with the `--quality` switch
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- long options and standard switches like `--` and `-` are allowed
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* Refactored and modernised code
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- - C99 with no workarounds for old systems
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+ - C99 with no workarounds for legacy systems or compilers ([apart from Visual Studio](https://github.com/pornel/pngquant/tree/msvc))
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- floating-point math used throughout
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- Intel SSE optimisations
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- multicore support via OpenMP
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@@ -75,7 +75,7 @@ Disables Floyd-Steinberg dithering.
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###`--floyd=0.5`
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-Controls level of dithering (0 = none, 1 = full).
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+Controls level of dithering (0 = none, 1 = full). Note that the `=` character is required.
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###`--posterize bits`
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diff --git a/configure b/configure
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index 99cf518..12bbb7b 100755
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--- a/configure
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+++ b/configure
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@@ -40,8 +40,8 @@ for i in "$@"; do
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help "--with-lcms2/--without-lcms2 compile with color profile support"
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if [[ "$OSTYPE" =~ "darwin" ]]; then
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help "--with-cocoa/--without-cocoa use Cocoa framework to read images"
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- help "--with-libpng=<dir> search for libpng in directory"
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fi
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+ help "--with-libpng=<dir> search for libpng in directory"
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echo
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help "CC=<compiler> use given compiler command"
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help "CFLAGS=<flags> pass options to the compiler"
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@@ -102,8 +102,7 @@ fi
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EXTRA_LDFLAGS="$EXTRA_LDFLAGS ${i#*=}"
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;;
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*)
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- echo "error: unknown switch ${i%%=*} (see $0 --help for the list)"
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- exit 1
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+ echo "warning: unknown switch ${i%%=*} (see $0 --help for the list)"
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;;
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esac
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done
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@@ -308,7 +307,13 @@ if [[ "$OSTYPE" =~ "darwin" ]]; then
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fi
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# pairs of possible *.h and lib*.so locations
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-DIRS=("/usr/local/include /usr/local/lib"
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+DIRS=()
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+
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+if which -s libpng-config; then
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+ DIRS+=("$(libpng-config --prefix) $(libpng-config --libdir)")
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+fi
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+
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+DIRS+=("/usr/local/include /usr/local/lib"
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"/usr/include /usr/lib"
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"/opt/local/include /opt/local/lib" # macports
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)
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diff --git a/lib/Makefile b/lib/Makefile
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index e4c5693..99448ce 100644
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--- a/lib/Makefile
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+++ b/lib/Makefile
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@@ -1,7 +1,8 @@
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-include config.mk
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STATICLIB=libimagequant.a
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-SHAREDLIB=libimagequant.so.0
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+SHAREDLIB=libimagequant.so
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+SOVER=0
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DLL=libimagequant.dll
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DLLIMP=libimagequant_dll.a
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@@ -34,7 +35,8 @@ $(SHAREDOBJS):
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$(CC) -fPIC $(CFLAGS) -c $(@:.lo=.c) -o $@
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$(SHAREDLIB): $(SHAREDOBJS)
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- $(CC) -shared -o $@ $^ $(LDFLAGS)
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+ $(CC) -shared -Wl,-soname,$(SHAREDLIB).$(SOVER) -o $(SHAREDLIB).$(SOVER) $^ $(LDFLAGS)
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+ ln -fs $(SHAREDLIB).$(SOVER) $(SHAREDLIB)
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$(OBJS): $(wildcard *.h) config.mk
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@@ -49,7 +51,7 @@ $(TARFILE): $(DISTFILES)
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-shasum $(TARFILE)
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clean:
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- rm -f $(OBJS) $(SHAREDOBJS) $(SHAREDLIB) $(STATICLIB) $(TARFILE) $(DLL) $(DLLIMP) $(DLLDEF)
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+ rm -f $(OBJS) $(SHAREDOBJS) $(SHAREDLIB).$(SOVER) $(SHAREDLIB) $(STATICLIB) $(TARFILE) $(DLL) $(DLLIMP) $(DLLDEF)
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distclean: clean
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rm -f config.mk
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