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340
contrib/gregbook/COPYING Normal file
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@@ -0,0 +1,340 @@
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Everyone is permitted to copy and distribute verbatim copies
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convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
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but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
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Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
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The hypothetical commands `show w' and `show c' should show the appropriate
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You should also get your employer (if you work as a programmer) or your
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Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
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Public License instead of this License.

26
contrib/gregbook/LICENSE
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@@ -1,12 +1,19 @@
---------------------------------------------------------------------------
Copyright (c) 1998-2001 Greg Roelofs. All rights reserved.
Copyright (c) 1998-2008 Greg Roelofs. All rights reserved.
This software is provided "as is," without warranty of any kind,
express or implied. In no event shall the author or contributors
be held liable for any damages arising in any way from the use of
this software.
The contents of this file are DUAL-LICENSED. You may modify and/or
redistribute this software according to the terms of one of the
following two licenses (at your option):
LICENSE 1 ("BSD-like with advertising clause"):
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute
it freely, subject to the following restrictions:
@@ -23,4 +30,21 @@
and contributors for the book, "PNG: The Definitive Guide,"
published by O'Reilly and Associates.
LICENSE 2 (GNU GPL v2 or later):
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
---------------------------------------------------------------------------

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# Sample makefile for rpng-win / rpng2-win / wpng using mingw32-gcc and make.
# Greg Roelofs
# Last modified: 2 June 2007
#
# The programs built by this makefile are described in the book,
# "PNG: The Definitive Guide," by Greg Roelofs (O'Reilly and
# Associates, 1999). Go buy a copy, eh? Well, OK, it's not
# generally for sale anymore, but it's the thought that counts,
# right? (Hint: http://www.libpng.org/pub/png/book/ )
#
# Invoke this makefile from a DOS-prompt window via:
#
# make -f Makefile.mingw32
#
# This makefile assumes libpng and zlib have already been built or downloaded
# and are in subdirectories at the same level as the current subdirectory
# (as indicated by the PNGDIR and ZDIR macros below). It makes no assumptions
# at all about the mingw32 installation tree (W32DIR). Edit as appropriate.
#
# Note that the names of the dynamic and static libpng and zlib libraries
# used below may change in later releases of the libraries. This makefile
# builds both statically and dynamically linked executables by default.
# (You need only one set, but for testing it can be handy to have both.)
# macros --------------------------------------------------------------------
#PNGDIR = ../..# for libpng-x.y.z/contrib/gregbook builds
PNGDIR = ../libpng-win32
PNGINC = -I$(PNGDIR)
PNGLIBd = $(PNGDIR)/libpng.dll.a # dynamically linked
PNGLIBs = $(PNGDIR)/libpng.a # statically linked, local libpng
#ZDIR = ../../../zlib-win32# for libpng-x.y.z/contrib/gregbook builds
ZDIR = ../zlib-win32
ZINC = -I$(ZDIR)
ZLIBd = $(ZDIR)/libzdll.a
ZLIBs = $(ZDIR)/libz.a
# change this to be the path where mingw32 installs its stuff:
W32DIR =
#W32DIR = /usr/local/cross-tools/i386-mingw32msvc
W32INC = -I$(W32DIR)/include
W32LIB = $(W32DIR)/lib/libuser32.a $(W32DIR)/lib/libgdi32.a
CC = gcc
#CC = i386-mingw32msvc-gcc # e.g., Linux -> Win32 cross-compilation
LD = $(CC)
RM = rm -f
CFLAGS = -O -Wall $(INCS) $(MINGW_CCFLAGS)
# [note that -Wall is a gcc-specific compilation flag ("most warnings on")]
# [-ansi, -pedantic and -W can also be used]
LDFLAGS = $(MINGW_LDFLAGS)
O = .o
E = .exe
INCS = $(PNGINC) $(ZINC) $(W32INC)
RLIBSd = $(PNGLIBd) $(ZLIBd) $(W32LIB) -lm
RLIBSs = $(PNGLIBs) $(ZLIBs) $(W32LIB) -lm
WLIBSd = $(PNGLIBd) $(ZLIBd)
WLIBSs = $(PNGLIBs) $(ZLIBs)
RPNG = rpng-win
RPNG2 = rpng2-win
WPNG = wpng
ROBJSd = $(RPNG)$(O) readpng.pic$(O)
ROBJS2d = $(RPNG2)$(O) readpng2.pic$(O)
WOBJSd = $(WPNG)$(O) writepng.pic$(O)
RPNGs = $(RPNG)-static
RPNG2s = $(RPNG2)-static
WPNGs = $(WPNG)-static
ROBJSs = $(RPNG)$(O) readpng$(O)
ROBJS2s = $(RPNG2)$(O) readpng2$(O)
WOBJSs = $(WPNG)$(O) writepng$(O)
STATIC_EXES = $(RPNGs)$(E) $(RPNG2s)$(E) $(WPNGs)$(E)
DYNAMIC_EXES = $(RPNG)$(E) $(RPNG2)$(E) $(WPNG)$(E)
EXES = $(STATIC_EXES) $(DYNAMIC_EXES)
# implicit make rules -------------------------------------------------------
.c$(O):
$(CC) -c $(CFLAGS) $<
%.pic$(O): %.c
$(CC) -c $(CFLAGS) -DPNG_BUILD_DLL -o $@ $<
# dependencies --------------------------------------------------------------
all: $(EXES)
$(RPNGs)$(E): $(ROBJSs)
$(LD) $(LDFLAGS) -o $@ $(ROBJSs) $(RLIBSs)
$(RPNG)$(E): $(ROBJSd)
$(LD) $(LDFLAGS) -o $@ $(ROBJSd) $(RLIBSd)
$(RPNG2s)$(E): $(ROBJS2s)
$(LD) $(LDFLAGS) -o $@ $(ROBJS2s) $(RLIBSs)
$(RPNG2)$(E): $(ROBJS2d)
$(LD) $(LDFLAGS) -o $@ $(ROBJS2d) $(RLIBSd)
$(WPNGs)$(E): $(WOBJSs)
$(LD) $(LDFLAGS) -o $@ $(WOBJSs) $(WLIBSs)
$(WPNG)$(E): $(WOBJSd)
$(LD) $(LDFLAGS) -o $@ $(WOBJSd) $(WLIBSd)
$(RPNG)$(O): $(RPNG).c readpng.h
$(RPNG2)$(O): $(RPNG2).c readpng2.h
$(WPNG)$(O): $(WPNG).c writepng.h
readpng$(O) readpng.pic$(O): readpng.c readpng.h
readpng2$(O) readpng2.pic$(O): readpng2.c readpng2.h
writepng$(O) writepng.pic$(O): writepng.c writepng.h
# maintenance ---------------------------------------------------------------
clean:
$(RM) $(EXES)
$(RM) $(ROBJSs) $(ROBJS2s) $(WOBJSs)
$(RM) $(ROBJSd) $(ROBJS2d) $(WOBJSd)

6
contrib/gregbook/Makefile.sgi
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@@ -23,9 +23,9 @@
# macros --------------------------------------------------------------------
PNGINC = -I/usr/local/include/libpng14
PNGLIB = -L/usr/local/lib -lpng14 # dynamically linked against libpng
#PNGLIB = /usr/local/lib/libpng14.a # statically linked against libpng
PNGINC = -I/usr/local/include/libpng12
PNGLIB = -L/usr/local/lib -lpng12 # dynamically linked against libpng
#PNGLIB = /usr/local/lib/libpng12.a # statically linked against libpng
# or:
#PNGINC = -I../..
#PNGLIB = -L../.. -lpng

92
contrib/gregbook/Makefile.unx
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@@ -1,73 +1,92 @@
# Sample makefile for rpng-x / rpng2-x / wpng using gcc and make.
# Greg Roelofs
# Last modified: 7 March 2002
# Last modified: 2 June 2007
#
# The programs built by this makefile are described in the book,
# "PNG: The Definitive Guide," by Greg Roelofs (O'Reilly and
# Associates, 1999). Go buy a copy, eh? Buy some for friends
# and family, too. (Not that this is a blatant plug or anything.)
# Associates, 1999). Go buy a copy, eh? Well, OK, it's not
# generally for sale anymore, but it's the thought that counts,
# right? (Hint: http://www.libpng.org/pub/png/book/ )
#
# Invoke this makefile from a shell prompt in the usual way; for example:
#
# make -f Makefile.unx
#
# This makefile assumes libpng and zlib have already been built or downloaded
# and are both installed in /usr/local/{include,lib} (as indicated by the
# PNG* and Z* macros below). Edit as appropriate--choose only ONE each of
# the PNGINC, PNGLIB, ZINC and ZLIB lines.
# and are installed in /usr/local/{include,lib} or as otherwise indicated by
# the PNG* and Z* macros below. Edit as appropriate--choose only ONE each of
# the PNGINC, PNGLIBd, PNGLIBs, ZINC, ZLIBd and ZLIBs lines.
#
# This makefile builds statically linked executables (against libpng and zlib,
# that is), but that can be changed by uncommenting the appropriate PNGLIB and
# ZLIB lines.
# This makefile builds both dynamically and statically linked executables
# (against libpng and zlib, that is), but that can be changed by modifying
# the "EXES =" line. (You need only one set, but for testing it can be handy
# to have both.)
# macros --------------------------------------------------------------------
PNGINC = -I/usr/local/include/libpng14
#PNGLIB = -L/usr/local/lib -lpng14 # dynamically linked against libpng
PNGLIB = /usr/local/lib/libpng14.a # statically linked against libpng
#PNGDIR = /usr/local/lib
#PNGINC = -I/usr/local/include/libpng12
#PNGLIBd = -L$(PNGDIR) -lpng12 # dynamically linked, installed libpng
#PNGLIBs = $(PNGDIR)/libpng12.a # statically linked, installed libpng
# or:
#PNGINC = -I../libpng
#PNGLIB = -L../libpng -lpng
#PNGLIB = ../libpng/libpng.a
PNGDIR = ../..# this one is for libpng-x.y.z/contrib/gregbook builds
#PNGDIR = ../libpng
PNGINC = -I$(PNGDIR)
PNGLIBd = -Wl,-rpath,$(PNGDIR) -L$(PNGDIR) -lpng12 # dynamically linked
PNGLIBs = $(PNGDIR)/libpng.a # statically linked, local libpng
ZDIR = /usr/local/lib
#ZDIR = /usr/lib64
ZINC = -I/usr/local/include
#ZLIB = -L/usr/local/lib -lz # dynamically linked against zlib
ZLIB = /usr/local/lib/libz.a # statically linked against zlib
#ZINC = -I../zlib
#ZLIB = -L../zlib -lz
#ZLIB = ../zlib/libz.a
ZLIBd = -L$(ZDIR) -lz # dynamically linked against zlib
ZLIBs = $(ZDIR)/libz.a # statically linked against zlib
# or:
#ZDIR = ../zlib
#ZINC = -I$(ZDIR)
#ZLIBd = -Wl,-rpath,$(ZDIR) -L$(ZDIR) -lz # -rpath allows in-place testing
#ZLIBs = $(ZDIR)/libz.a
#XINC = -I/usr/include # old-style, stock X distributions
#XLIB = -L/usr/lib/X11 -lX11
#XLIB = -L/usr/lib/X11 -lX11 # (including SGI IRIX)
#XINC = -I/usr/openwin/include # Sun workstations (OpenWindows)
#XLIB = -L/usr/openwin/lib -lX11
XINC = -I/usr/X11R6/include # new X distributions (XFree86, etc.)
XINC = -I/usr/X11R6/include # new X distributions (X.org, etc.)
XLIB = -L/usr/X11R6/lib -lX11
#XLIB = -L/usr/X11R6/lib64 -lX11 # e.g., Red Hat on AMD64
INCS = $(PNGINC) $(ZINC) $(XINC)
RLIBS = $(PNGLIB) $(ZLIB) $(XLIB) -lm
WLIBS = $(PNGLIB) $(ZLIB)
RLIBSd = $(PNGLIBd) $(ZLIBd) $(XLIB) -lm
RLIBSs = $(PNGLIBs) $(ZLIBs) $(XLIB) -lm
WLIBSd = $(PNGLIBd) $(ZLIBd) -lm
WLIBSs = $(PNGLIBs) $(ZLIBs)
CC = gcc
LD = gcc
RM = rm -f
CFLAGS = -O -Wall $(INCS)
CFLAGS = -O -Wall $(INCS) -DFEATURE_LOOP
# [note that -Wall is a gcc-specific compilation flag ("most warnings on")]
# [-ansi, -pedantic and -W can also be used]
LDFLAGS =
O = .o
E =
RPNG = rpng-x
RPNG2 = rpng2-x
WPNG = wpng
RPNG = rpng-x
RPNG2 = rpng2-x
WPNG = wpng
RPNGs = $(RPNG)-static
RPNG2s = $(RPNG2)-static
WPNGs = $(WPNG)-static
ROBJS = $(RPNG)$(O) readpng$(O)
ROBJS2 = $(RPNG2)$(O) readpng2$(O)
WOBJS = $(WPNG)$(O) writepng$(O)
EXES = $(RPNG)$(E) $(RPNG2)$(E) $(WPNG)$(E)
STATIC_EXES = $(RPNGs)$(E) $(RPNG2s)$(E) $(WPNGs)$(E)
DYNAMIC_EXES = $(RPNG)$(E) $(RPNG2)$(E) $(WPNG)$(E)
EXES = $(STATIC_EXES) $(DYNAMIC_EXES)
# implicit make rules -------------------------------------------------------
@@ -80,14 +99,23 @@ EXES = $(RPNG)$(E) $(RPNG2)$(E) $(WPNG)$(E)
all: $(EXES)
$(RPNGs)$(E): $(ROBJS)
$(LD) $(LDFLAGS) -o $@ $(ROBJS) $(RLIBSs)
$(RPNG)$(E): $(ROBJS)
$(LD) $(LDFLAGS) -o $@ $(ROBJS) $(RLIBS)
$(LD) $(LDFLAGS) -o $@ $(ROBJS) $(RLIBSd)
$(RPNG2s)$(E): $(ROBJS2)
$(LD) $(LDFLAGS) -o $@ $(ROBJS2) $(RLIBSs)
$(RPNG2)$(E): $(ROBJS2)
$(LD) $(LDFLAGS) -o $@ $(ROBJS2) $(RLIBS)
$(LD) $(LDFLAGS) -o $@ $(ROBJS2) $(RLIBSd)
$(WPNGs)$(E): $(WOBJS)
$(LD) $(LDFLAGS) -o $@ $(WOBJS) $(WLIBSs)
$(WPNG)$(E): $(WOBJS)
$(LD) $(LDFLAGS) -o $@ $(WOBJS) $(WLIBS)
$(LD) $(LDFLAGS) -o $@ $(WOBJS) $(WLIBSd)
$(RPNG)$(O): $(RPNG).c readpng.h
$(RPNG2)$(O): $(RPNG2).c readpng2.h

9
contrib/gregbook/Makefile.w32
View File

@@ -1,11 +1,12 @@
# Sample makefile for rpng-win / rpng2-win / wpng using MSVC and NMAKE.
# Greg Roelofs
# Last modified: 16 February 1999
# Last modified: 2 June 2007
#
# The programs built by this makefile are described in the book,
# "PNG: The Definitive Guide," by Greg Roelofs (O'Reilly and
# Associates, 1999). Go buy a copy, eh? Buy some for friends
# and family, too. (Not that this is a blatant plug or anything.)
# Associates, 1999). Go buy a copy, eh? Well, OK, it's not
# generally for sale anymore, but it's the thought that counts,
# right? (Hint: http://www.libpng.org/pub/png/book/ )
#
# Invoke this makefile from a DOS prompt window via:
#
@@ -53,7 +54,7 @@ CC = cl
LD = link
RM = del
CFLAGS = -nologo -O -W3 $(INCS) $(cvars)
# [note that -Wall is an MSVC-specific compilation flag ("all warnings on")]
# [note that -W3 is an MSVC-specific compilation flag ("all warnings on")]
# [see %devstudio%\vc\include\win32.mak for cvars macro definition]
O = .obj
E = .exe

15
contrib/gregbook/README
View File

@@ -22,7 +22,8 @@ below.
Files:
README this file
LICENSE terms of distribution and reuse (BSD-like)
LICENSE terms of distribution and reuse (BSD-like or GNU GPL)
COPYING GNU General Public License (GPL)
Makefile.unx Unix makefile
Makefile.w32 Windows (MSVC) makefile
@@ -54,15 +55,15 @@ mation and links to the latest version of the source code, and Chapters
13-15 of the book for detailed discussion of the three programs.
Greg Roelofs
newt@pobox.com
30 June 2001
http://pobox.com/~newt/greg_contact.html
16 March 2008
BUILD INSTRUCTIONS
- Prerequisites (in order of compilation):
- zlib http://www.gzip.org/zlib/
- zlib http://zlib.net/
- libpng http://www.libpng.org/pub/png/libpng.html
- pngbook http://www.libpng.org/pub/png/book/sources.html
@@ -150,9 +151,9 @@ BUILD INSTRUCTIONS
To run the programs, they probably first need to be set up as "foreign
symbols," with "disk" and "dir" set appropriately:
$ rpng == "$disk:[dir]rpng-x.exe"
$ rpng == "$disk:[dir]rpng-x.exe"
$ rpng2 == "$disk:[dir]rpng2-x.exe"
$ wpng == "$disk:[dir]wpng.exe"
$ wpng == "$disk:[dir]wpng.exe"
All three will print a basic usage screen when run without any command-
line arguments; see the book for more details. Note that the options
@@ -176,7 +177,7 @@ RUNNING THE PROGRAMS: (VERY) BRIEF INTRO
wpng is a purely command-line image converter from binary PBMPLUS/NetPBM
format (.pgm or .ppm) to PNG; for example,
wpng -time < toucan.ppm > toucan.png
wpng -time < toucan-notrans.ppm > toucan-notrans.png
would convert the specified PPM file (using redirection) to PNG, auto-
matically setting the PNG modification-time chunk.

26
contrib/gregbook/readpng.c
View File

@@ -4,13 +4,20 @@
---------------------------------------------------------------------------
Copyright (c) 1998-2000 Greg Roelofs. All rights reserved.
Copyright (c) 1998-2007 Greg Roelofs. All rights reserved.
This software is provided "as is," without warranty of any kind,
express or implied. In no event shall the author or contributors
be held liable for any damages arising in any way from the use of
this software.
The contents of this file are DUAL-LICENSED. You may modify and/or
redistribute this software according to the terms of one of the
following two licenses (at your option):
LICENSE 1 ("BSD-like with advertising clause"):
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute
it freely, subject to the following restrictions:
@@ -27,6 +34,23 @@
and contributors for the book, "PNG: The Definitive Guide,"
published by O'Reilly and Associates.
LICENSE 2 (GNU GPL v2 or later):
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
---------------------------------------------------------------------------*/
#include <stdio.h>

26
contrib/gregbook/readpng.h
View File

@@ -4,13 +4,20 @@
---------------------------------------------------------------------------
Copyright (c) 1998-2000 Greg Roelofs. All rights reserved.
Copyright (c) 1998-2007 Greg Roelofs. All rights reserved.
This software is provided "as is," without warranty of any kind,
express or implied. In no event shall the author or contributors
be held liable for any damages arising in any way from the use of
this software.
The contents of this file are DUAL-LICENSED. You may modify and/or
redistribute this software according to the terms of one of the
following two licenses (at your option):
LICENSE 1 ("BSD-like with advertising clause"):
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute
it freely, subject to the following restrictions:
@@ -27,6 +34,23 @@
and contributors for the book, "PNG: The Definitive Guide,"
published by O'Reilly and Associates.
LICENSE 2 (GNU GPL v2 or later):
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
---------------------------------------------------------------------------*/
#ifndef TRUE

101
contrib/gregbook/readpng2.c
View File

@@ -4,19 +4,20 @@
---------------------------------------------------------------------------
Changelog:
- 1.01: initial public release
- 1.02: added code to skip unused chunks (GR-P)
---------------------------------------------------------------------------
Copyright (c) 1998-2002 Greg Roelofs. All rights reserved.
Copyright (c) 1998-2007 Greg Roelofs. All rights reserved.
This software is provided "as is," without warranty of any kind,
express or implied. In no event shall the author or contributors
be held liable for any damages arising in any way from the use of
this software.
The contents of this file are DUAL-LICENSED. You may modify and/or
redistribute this software according to the terms of one of the
following two licenses (at your option):
LICENSE 1 ("BSD-like with advertising clause"):
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute
it freely, subject to the following restrictions:
@@ -33,6 +34,23 @@
and contributors for the book, "PNG: The Definitive Guide,"
published by O'Reilly and Associates.
LICENSE 2 (GNU GPL v2 or later):
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
---------------------------------------------------------------------------*/
@@ -56,7 +74,7 @@ static void readpng2_error_handler(png_structp png_ptr, png_const_charp msg);
void readpng2_version_info(void)
{
#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && \
(defined(__i386__) || defined(_M_IX86)) && \
(defined(__i386__) || defined(_M_IX86) || defined(__x86_64__)) && \
defined(PNG_LIBPNG_VER) && (PNG_LIBPNG_VER >= 10200)
/*
* WARNING: This preprocessor approach means that the following code
@@ -79,7 +97,12 @@ void readpng2_version_info(void)
"with MMX support\n (%s version).", PNG_LIBPNG_VER_STRING,
png_libpng_ver, compilerID == 1? "MSVC++" :
(compilerID == 2? "GNU C" : "unknown"));
fprintf(stderr, " Processor %s MMX instructions.\n",
fprintf(stderr, " Processor (x86%s) %s MMX instructions.\n",
#if defined(__x86_64__)
"_64",
#else
"",
#endif
mmxsupport? "supports" : "does not support");
if (mmxsupport > 0) {
int num_optims = 0;
@@ -179,40 +202,38 @@ int readpng2_init(mainprog_info *mainprog_ptr)
return 2;
}
/* prepare the reader to ignore all recognized chunks whose data isn't
* going to be used, i.e., all chunks recognized by libpng except for
* IHDR, PLTE, IDAT, IEND, tRNS, bKGD, gAMA, and sRGB : */
#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED)
#ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED
/* prepare the reader to ignore all recognized chunks whose data won't be
* used, i.e., all chunks recognized by libpng except for IHDR, PLTE, IDAT,
* IEND, tRNS, bKGD, gAMA, and sRGB (small performance improvement) */
{
#ifndef HANDLE_CHUNK_NEVER
/* prior to libpng-1.2.5, this macro was internal, so we define it here. */
# define HANDLE_CHUNK_NEVER 1
#endif
/* these byte strings were copied from png.h.
* If a future libpng version recognizes more chunks, add them
* to this list. If a future version of readpng2.c recognizes
* more chunks, delete them from this list. */
png_byte png_chunk_types_to_ignore[]=
{ 99, 72, 82, 77, '\0', /* cHRM */
104, 73, 83, 84, '\0', /* hIST */
105, 67, 67, 80, '\0', /* iCCP */
105, 84, 88, 116, '\0', /* iTXt */
111, 70, 70, 115, '\0', /* oFFs */
112, 67, 65, 76, '\0', /* pCAL */
115, 67, 65, 76, '\0', /* sCAL */
112, 72, 89, 115, '\0', /* pHYs */
115, 66, 73, 84, '\0', /* sBIT */
115, 80, 76, 84, '\0', /* sPLT */
116, 69, 88, 116, '\0', /* tEXt */
116, 73, 77, 69, '\0', /* tIME */
122, 84, 88, 116, '\0'}; /* zTXt */
#define NUM_PNG_CHUNK_TYPES_TO_IGNORE 13
/* These byte strings were copied from png.h. If a future libpng
* version recognizes more chunks, add them to this list. If a
* future version of readpng2.c recognizes more chunks, delete them
* from this list. */
static const png_byte chunks_to_ignore[] = {
99, 72, 82, 77, '\0', /* cHRM */
104, 73, 83, 84, '\0', /* hIST */
105, 67, 67, 80, '\0', /* iCCP */
105, 84, 88, 116, '\0', /* iTXt */
111, 70, 70, 115, '\0', /* oFFs */
112, 67, 65, 76, '\0', /* pCAL */
112, 72, 89, 115, '\0', /* pHYs */
115, 66, 73, 84, '\0', /* sBIT */
115, 67, 65, 76, '\0', /* sCAL */
115, 80, 76, 84, '\0', /* sPLT */
115, 84, 69, 82, '\0', /* sTER */
116, 69, 88, 116, '\0', /* tEXt */
116, 73, 77, 69, '\0', /* tIME */
122, 84, 88, 116, '\0' /* zTXt */
};
png_set_keep_unknown_chunks(png_ptr, HANDLE_CHUNK_NEVER,
png_chunk_types_to_ignore, NUM_PNG_CHUNK_TYPES_TO_IGNORE);
png_set_keep_unknown_chunks(png_ptr, 1 /* PNG_HANDLE_CHUNK_NEVER */,
chunks_to_ignore, sizeof(chunks_to_ignore)/5);
}
#endif
#endif /* PNG_UNKNOWN_CHUNKS_SUPPORTED */
/* instead of doing png_init_io() here, now we set up our callback
* functions for progressive decoding */
@@ -237,7 +258,7 @@ int readpng2_init(mainprog_info *mainprog_ptr)
* png_set_asm_flags (png_ptr, flags);
*/
#if (defined(__i386__) || defined(_M_IX86)) && \
#if (defined(__i386__) || defined(_M_IX86) || defined(__x86_64__)) && \
defined(PNG_LIBPNG_VER) && (PNG_LIBPNG_VER >= 10200)
/*
* WARNING: This preprocessor approach means that the following code

36
contrib/gregbook/readpng2.h
View File

@@ -4,13 +4,20 @@
---------------------------------------------------------------------------
Copyright (c) 1998-2001 Greg Roelofs. All rights reserved.
Copyright (c) 1998-2008 Greg Roelofs. All rights reserved.
This software is provided "as is," without warranty of any kind,
express or implied. In no event shall the author or contributors
be held liable for any damages arising in any way from the use of
this software.
The contents of this file are DUAL-LICENSED. You may modify and/or
redistribute this software according to the terms of one of the
following two licenses (at your option):
LICENSE 1 ("BSD-like with advertising clause"):
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute
it freely, subject to the following restrictions:
@@ -27,6 +34,23 @@
and contributors for the book, "PNG: The Definitive Guide,"
published by O'Reilly and Associates.
LICENSE 2 (GNU GPL v2 or later):
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
---------------------------------------------------------------------------*/
#ifndef TRUE
@@ -45,6 +69,12 @@
# define Trace(x) ;
#endif
enum rpng2_states {
kPreInit = 0,
kWindowInit,
kDone
};
typedef unsigned char uch;
typedef unsigned short ush;
typedef unsigned long ulg;
@@ -66,12 +96,12 @@ typedef struct _mainprog_info {
int rowbytes;
int channels;
int need_bgcolor;
#if (defined(__i386__) || defined(_M_IX86))
#if (defined(__i386__) || defined(_M_IX86) || defined(__x86_64__))
int nommxfilters;
int nommxcombine;
int nommxinterlace;
#endif
int done;
int state;
uch bg_red;
uch bg_green;
uch bg_blue;

179
contrib/gregbook/readppm.c Normal file
View File

@@ -0,0 +1,179 @@
/*---------------------------------------------------------------------------
rpng - simple PNG display program readppm.c
---------------------------------------------------------------------------
This is a special-purpose replacement for readpng.c that allows binary
PPM files to be used in place of PNG images.
---------------------------------------------------------------------------
Copyright (c) 1998-2007 Greg Roelofs. All rights reserved.
This software is provided "as is," without warranty of any kind,
express or implied. In no event shall the author or contributors
be held liable for any damages arising in any way from the use of
this software.
The contents of this file are DUAL-LICENSED. You may modify and/or
redistribute this software according to the terms of one of the
following two licenses (at your option):
LICENSE 1 ("BSD-like with advertising clause"):
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute
it freely, subject to the following restrictions:
1. Redistributions of source code must retain the above copyright
notice, disclaimer, and this list of conditions.
2. Redistributions in binary form must reproduce the above copyright
notice, disclaimer, and this list of conditions in the documenta-
tion and/or other materials provided with the distribution.
3. All advertising materials mentioning features or use of this
software must display the following acknowledgment:
This product includes software developed by Greg Roelofs
and contributors for the book, "PNG: The Definitive Guide,"
published by O'Reilly and Associates.
LICENSE 2 (GNU GPL v2 or later):
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
---------------------------------------------------------------------------*/
#include <stdio.h>
#include <stdlib.h>
#include "readpng.h" /* typedefs, common macros, public prototypes */
ulg width, height;
int bit_depth, color_type, channels;
uch *image_data = NULL;
FILE *saved_infile;
void readpng_version_info()
{
fprintf(stderr, " Compiled without libpng, zlib or PBMPLUS/NetPBM.\n");
}
/* return value = 0 for success, 1 for bad sig, 2 for bad IHDR, 4 for no mem */
int readpng_init(FILE *infile, ulg *pWidth, ulg *pHeight)
{
static uch ppmline[256];
int maxval;
saved_infile = infile;
fgets(ppmline, 256, infile);
if (ppmline[0] != 'P' || ppmline[1] != '6') {
fprintf(stderr, "ERROR: not a PPM file\n");
return 1;
}
/* possible color types: P5 = grayscale (0), P6 = RGB (2), P8 = RGBA (6) */
if (ppmline[1] == '6') {
color_type = 2;
channels = 3;
} else if (ppmline[1] == '8') {
color_type = 6;
channels = 4;
} else /* if (ppmline[1] == '5') */ {
color_type = 0;
channels = 1;
}
do {
fgets(ppmline, 256, infile);
} while (ppmline[0] == '#');
sscanf(ppmline, "%lu %lu", &width, &height);
do {
fgets(ppmline, 256, infile);
} while (ppmline[0] == '#');
sscanf(ppmline, "%d", &maxval);
if (maxval != 255) {
fprintf(stderr, "ERROR: maxval = %d\n", maxval);
return 2;
}
bit_depth = 8;
*pWidth = width;
*pHeight = height;
return 0;
}
/* returns 0 if succeeds, 1 if fails due to no bKGD chunk, 2 if libpng error;
* scales values to 8-bit if necessary */
int readpng_get_bgcolor(uch *red, uch *green, uch *blue)
{
return 1;
}
/* display_exponent == LUT_exponent * CRT_exponent */
uch *readpng_get_image(double display_exponent, int *pChannels, ulg *pRowbytes)
{
ulg rowbytes;
/* expand palette images to RGB, low-bit-depth grayscale images to 8 bits,
* transparency chunks to full alpha channel; strip 16-bit-per-sample
* images to 8 bits per sample; and convert grayscale to RGB[A] */
/* GRR WARNING: grayscale needs to be expanded and channels reset! */
*pRowbytes = rowbytes = channels*width;
*pChannels = channels;
if ((image_data = (uch *)malloc(rowbytes*height)) == NULL) {
return NULL;
}
Trace((stderr, "readpng_get_image: rowbytes = %ld, height = %ld\n", rowbytes, height));
/* now we can go ahead and just read the whole image */
fread(image_data, 1L, rowbytes*height, saved_infile);
return image_data;
}
void readpng_cleanup(int free_image_data)
{
if (free_image_data && image_data) {
free(image_data);
image_data = NULL;
}
}

118
contrib/gregbook/rpng-win.c
View File

@@ -22,16 +22,25 @@
- 1.02: added extra set of parentheses to png_jmpbuf() macro; fixed
command-line parsing bug
- 1.10: enabled "message window"/console (thanks to David Geldreich)
- 2.00: dual-licensed (added GNU GPL)
- 2.01: fixed improper display of usage screen on PNG error(s)
---------------------------------------------------------------------------
Copyright (c) 1998-2001 Greg Roelofs. All rights reserved.
Copyright (c) 1998-2008 Greg Roelofs. All rights reserved.
This software is provided "as is," without warranty of any kind,
express or implied. In no event shall the author or contributors
be held liable for any damages arising in any way from the use of
this software.
The contents of this file are DUAL-LICENSED. You may modify and/or
redistribute this software according to the terms of one of the
following two licenses (at your option):
LICENSE 1 ("BSD-like with advertising clause"):
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute
it freely, subject to the following restrictions:
@@ -48,11 +57,28 @@
and contributors for the book, "PNG: The Definitive Guide,"
published by O'Reilly and Associates.
LICENSE 2 (GNU GPL v2 or later):
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
---------------------------------------------------------------------------*/
#define PROGNAME "rpng-win"
#define LONGNAME "Simple PNG Viewer for Windows"
#define VERSION "1.20 of 28 May 2001"
#define VERSION "2.01 of 16 March 2008"
#include <stdio.h>
#include <stdlib.h>
@@ -85,10 +111,9 @@ static void rpng_win_cleanup(void);
LRESULT CALLBACK rpng_win_wndproc(HWND, UINT, WPARAM, LPARAM);
static char titlebar[1024], *window_name = titlebar;
static char titlebar[1024];
static char *progname = PROGNAME;
static char *appname = LONGNAME;
static char *icon_name = PROGNAME; /* GRR: not (yet) used */
static char *filename;
static FILE *infile;
@@ -247,40 +272,11 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
}
}
if (!filename) {
if (!filename)
++error;
} else if (!(infile = fopen(filename, "rb"))) {
fprintf(stderr, PROGNAME ": can't open PNG file [%s]\n", filename);
++error;
} else {
if ((rc = readpng_init(infile, &image_width, &image_height)) != 0) {
switch (rc) {
case 1:
fprintf(stderr, PROGNAME
": [%s] is not a PNG file: incorrect signature\n",
filename);
break;
case 2:
fprintf(stderr, PROGNAME
": [%s] has bad IHDR (libpng longjmp)\n",
filename);
break;
case 4:
fprintf(stderr, PROGNAME ": insufficient memory\n");
break;
default:
fprintf(stderr, PROGNAME
": unknown readpng_init() error\n");
break;
}
++error;
}
if (error)
fclose(infile);
}
/* usage screen */
/* print usage screen if any errors up to this point */
if (error) {
int ch;
@@ -303,6 +299,47 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
ch = _getch();
while (ch != 'q' && ch != 'Q' && ch != 0x1B);
exit(1);
}
if (!(infile = fopen(filename, "rb"))) {
fprintf(stderr, PROGNAME ": can't open PNG file [%s]\n", filename);
++error;
} else {
if ((rc = readpng_init(infile, &image_width, &image_height)) != 0) {
switch (rc) {
case 1:
fprintf(stderr, PROGNAME
": [%s] is not a PNG file: incorrect signature\n",
filename);
break;
case 2:
fprintf(stderr, PROGNAME
": [%s] has bad IHDR (libpng longjmp)\n", filename);
break;
case 4:
fprintf(stderr, PROGNAME ": insufficient memory\n");
break;
default:
fprintf(stderr, PROGNAME
": unknown readpng_init() error\n");
break;
}
++error;
}
if (error)
fclose(infile);
}
if (error) {
int ch;
fprintf(stderr, PROGNAME ": aborting.\n");
do
ch = _getch();
while (ch != 'q' && ch != 'Q' && ch != 0x1B);
exit(2);
} else {
fprintf(stderr, "\n%s %s: %s\n", PROGNAME, VERSION, appname);
fprintf(stderr,
@@ -325,9 +362,14 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
* check for one in the PNG file--if not, the initialized values of 0
* (black) will be used */
if (have_bg)
sscanf(bgstr+1, "%2x%2x%2x", &bg_red, &bg_green, &bg_blue);
else if (readpng_get_bgcolor(&bg_red, &bg_green, &bg_blue) > 1) {
if (have_bg) {
unsigned r, g, b; /* this approach quiets compiler warnings */
sscanf(bgstr+1, "%2x%2x%2x", &r, &g, &b);
bg_red = (uch)r;
bg_green = (uch)g;
bg_blue = (uch)b;
} else if (readpng_get_bgcolor(&bg_red, &bg_green, &bg_blue) > 1) {
readpng_cleanup(TRUE);
fprintf(stderr, PROGNAME
": libpng error while checking for background color\n");

106
contrib/gregbook/rpng-x.c
View File

@@ -9,7 +9,7 @@
by Martin Zinser under OpenVMS; may work under OS/2 with some tweaking).
to do:
- 8-bit support
- 8-bit (colormapped) X support
- use %.1023s to simplify truncation of title-bar string?
---------------------------------------------------------------------------
@@ -21,18 +21,28 @@
- 1.10: added support for non-default visuals; fixed X pixel-conversion
- 1.11: added extra set of parentheses to png_jmpbuf() macro; fixed
command-line parsing bug
- 1.12: fixed small X memory leak (thanks to Francois Petitjean)
- 1.13: fixed XFreeGC() crash bug
- 1.12: fixed some small X memory leaks (thanks to Fran<EFBFBD>ois Petitjean)
- 1.13: fixed XFreeGC() crash bug (thanks to Patrick Welche)
- 1.14: added support for X resources (thanks to Gerhard Niklasch)
- 2.00: dual-licensed (added GNU GPL)
- 2.01: fixed improper display of usage screen on PNG error(s)
---------------------------------------------------------------------------
Copyright (c) 1998-2001 Greg Roelofs. All rights reserved.
Copyright (c) 1998-2008 Greg Roelofs. All rights reserved.
This software is provided "as is," without warranty of any kind,
express or implied. In no event shall the author or contributors
be held liable for any damages arising in any way from the use of
this software.
The contents of this file are DUAL-LICENSED. You may modify and/or
redistribute this software according to the terms of one of the
following two licenses (at your option):
LICENSE 1 ("BSD-like with advertising clause"):
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute
it freely, subject to the following restrictions:
@@ -49,11 +59,30 @@
and contributors for the book, "PNG: The Definitive Guide,"
published by O'Reilly and Associates.
LICENSE 2 (GNU GPL v2 or later):
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
---------------------------------------------------------------------------*/
#define PROGNAME "rpng-x"
#define LONGNAME "Simple PNG Viewer for X"
#define VERSION "1.13 of 16 August 2001"
#define VERSION "2.01 of 16 March 2008"
#define RESNAME "rpng" /* our X resource application name */
#define RESCLASS "Rpng" /* our X resource class name */
#include <stdio.h>
#include <stdlib.h>
@@ -91,6 +120,8 @@ static int rpng_x_msb(ulg u32val);
static char titlebar[1024], *window_name = titlebar;
static char *appname = LONGNAME;
static char *icon_name = PROGNAME;
static char *res_name = RESNAME;
static char *res_class = RESCLASS;
static char *filename;
static FILE *infile;
@@ -235,9 +266,33 @@ int main(int argc, char **argv)
}
}
if (!filename) {
if (!filename)
++error;
} else if (!(infile = fopen(filename, "rb"))) {
/* print usage screen if any errors up to this point */
if (error) {
fprintf(stderr, "\n%s %s: %s\n", PROGNAME, VERSION, appname);
readpng_version_info();
fprintf(stderr, "\n"
"Usage: %s [-display xdpy] [-gamma exp] [-bgcolor bg] file.png\n"
" xdpy\tname of the target X display (e.g., ``hostname:0'')\n"
" exp \ttransfer-function exponent (``gamma'') of the display\n"
"\t\t system in floating-point format (e.g., ``%.1f''); equal\n"
"\t\t to the product of the lookup-table exponent (varies)\n"
"\t\t and the CRT exponent (usually 2.2); must be positive\n"
" bg \tdesired background color in 7-character hex RGB format\n"
"\t\t (e.g., ``#ff7700'' for orange: same as HTML colors);\n"
"\t\t used with transparent images\n"
"\nPress Q, Esc or mouse button 1 (within image window, after image\n"
"is displayed) to quit.\n"
"\n", PROGNAME, default_display_exponent);
exit(1);
}
if (!(infile = fopen(filename, "rb"))) {
fprintf(stderr, PROGNAME ": can't open PNG file [%s]\n", filename);
++error;
} else {
@@ -250,8 +305,7 @@ int main(int argc, char **argv)
break;
case 2:
fprintf(stderr, PROGNAME
": [%s] has bad IHDR (libpng longjmp)\n",
filename);
": [%s] has bad IHDR (libpng longjmp)\n", filename);
break;
case 4:
fprintf(stderr, PROGNAME ": insufficient memory\n");
@@ -276,25 +330,9 @@ int main(int argc, char **argv)
}
/* usage screen */
if (error) {
fprintf(stderr, "\n%s %s: %s\n", PROGNAME, VERSION, appname);
readpng_version_info();
fprintf(stderr, "\n"
"Usage: %s [-display xdpy] [-gamma exp] [-bgcolor bg] file.png\n"
" xdpy\tname of the target X display (e.g., ``hostname:0'')\n"
" exp \ttransfer-function exponent (``gamma'') of the display\n"
"\t\t system in floating-point format (e.g., ``%.1f''); equal\n"
"\t\t to the product of the lookup-table exponent (varies)\n"
"\t\t and the CRT exponent (usually 2.2); must be positive\n"
" bg \tdesired background color in 7-character hex RGB format\n"
"\t\t (e.g., ``#ff7700'' for orange: same as HTML colors);\n"
"\t\t used with transparent images\n"
"\nPress Q, Esc or mouse button 1 (within image window, after image\n"
"is displayed) to quit.\n"
"\n", PROGNAME, default_display_exponent);
exit(1);
fprintf(stderr, PROGNAME ": aborting.\n");
exit(2);
}
@@ -399,11 +437,12 @@ static int rpng_x_create_window(void)
XEvent e;
XGCValues gcvalues;
XSetWindowAttributes attr;
XSizeHints *size_hints;
XTextProperty windowName, *pWindowName = &windowName;
XTextProperty iconName, *pIconName = &iconName;
XVisualInfo visual_info;
XSizeHints *size_hints;
XWMHints *wm_hints;
XClassHint *class_hints;
screen = DefaultScreen(display);
@@ -526,7 +565,7 @@ static int rpng_x_create_window(void)
if (!XStringListToTextProperty(&icon_name, 1, pIconName))
pIconName = NULL;
/* OK if either hints allocation fails; XSetWMProperties() allows NULLs */
/* OK if any hints allocation fails; XSetWMProperties() allows NULLs */
if ((size_hints = XAllocSizeHints()) != NULL) {
/* window will not be resizable */
@@ -542,8 +581,13 @@ static int rpng_x_create_window(void)
wm_hints->flags = StateHint | InputHint /* | IconPixmapHint */ ;
}
if ((class_hints = XAllocClassHint()) != NULL) {
class_hints->res_name = res_name;
class_hints->res_class = res_class;
}
XSetWMProperties(display, window, pWindowName, pIconName, NULL, 0,
size_hints, wm_hints, NULL);
size_hints, wm_hints, class_hints);
/* various properties and hints no longer needed; free memory */
if (pWindowName)
@@ -554,6 +598,8 @@ static int rpng_x_create_window(void)
XFree(size_hints);
if (wm_hints)
XFree(wm_hints);
if (class_hints)
XFree(class_hints);
XMapWindow(display, window);

155
contrib/gregbook/rpng2-win.c
View File

@@ -10,7 +10,7 @@
tweaking (or maybe not). Thanks to Adam Costello and Pieter S. van der
Meulen for the "diamond" and "radial waves" patterns, respectively.
to do:
to do (someday, maybe):
- handle quoted command-line args (especially filenames with spaces)
- finish resizable checkerboard-gradient (sizes 4-128?)
- use %.1023s to simplify truncation of title-bar string?
@@ -27,16 +27,28 @@
- 1.10: enabled "message window"/console (thanks to David Geldreich)
- 1.20: added runtime MMX-enabling/disabling and new -mmx* options
- 1.21: made minor tweak to usage screen to fit within 25-line console
- 1.22: added AMD64/EM64T support (__x86_64__)
- 2.00: dual-licensed (added GNU GPL)
- 2.01: fixed 64-bit typo in readpng2.c
- 2.02: fixed improper display of usage screen on PNG error(s); fixed
unexpected-EOF and file-read-error cases
---------------------------------------------------------------------------
Copyright (c) 1998-2001 Greg Roelofs. All rights reserved.
Copyright (c) 1998-2008 Greg Roelofs. All rights reserved.
This software is provided "as is," without warranty of any kind,
express or implied. In no event shall the author or contributors
be held liable for any damages arising in any way from the use of
this software.
The contents of this file are DUAL-LICENSED. You may modify and/or
redistribute this software according to the terms of one of the
following two licenses (at your option):
LICENSE 1 ("BSD-like with advertising clause"):
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute
it freely, subject to the following restrictions:
@@ -53,11 +65,28 @@
and contributors for the book, "PNG: The Definitive Guide,"
published by O'Reilly and Associates.
LICENSE 2 (GNU GPL v2 or later):
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
---------------------------------------------------------------------------*/
#define PROGNAME "rpng2-win"
#define LONGNAME "Progressive PNG Viewer for Windows"
#define VERSION "1.21 of 29 June 2001"
#define VERSION "2.02 of 16 March 2008"
#include <stdio.h>
#include <stdlib.h>
@@ -119,10 +148,9 @@ static void rpng2_win_cleanup(void);
LRESULT CALLBACK rpng2_win_wndproc(HWND, UINT, WPARAM, LPARAM);
static char titlebar[1024], *window_name = titlebar;
static char titlebar[1024];
static char *progname = PROGNAME;
static char *appname = LONGNAME;
static char *icon_name = PROGNAME; /* GRR: not (yet) used */
static char *filename;
static FILE *infile;
@@ -367,7 +395,7 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
}
} else if (!strncmp(*argv, "-timing", 2)) {
timing = TRUE;
#if (defined(__i386__) || defined(_M_IX86))
#if (defined(__i386__) || defined(_M_IX86) || defined(__x86_64__))
} else if (!strncmp(*argv, "-nommxfilters", 7)) {
rpng2_info.nommxfilters = TRUE;
} else if (!strncmp(*argv, "-nommxcombine", 7)) {
@@ -389,9 +417,54 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
}
}
if (!filename) {
if (!filename)
++error;
} else if (!(infile = fopen(filename, "rb"))) {
/* print usage screen if any errors up to this point */
if (error) {
int ch;
fprintf(stderr, "\n%s %s: %s\n\n", PROGNAME, VERSION, appname);
readpng2_version_info();
fprintf(stderr, "\n"
"Usage: %s [-gamma exp] [-bgcolor bg | -bgpat pat] [-timing]\n"
#if (defined(__i386__) || defined(_M_IX86) || defined(__x86_64__))
" %*s [[-nommxfilters] [-nommxcombine] [-nommxinterlace] | -nommx]\n"
#endif
" %*s file.png\n\n"
" exp \ttransfer-function exponent (``gamma'') of the display\n"
"\t\t system in floating-point format (e.g., ``%.1f''); equal\n"
"\t\t to the product of the lookup-table exponent (varies)\n"
"\t\t and the CRT exponent (usually 2.2); must be positive\n"
" bg \tdesired background color in 7-character hex RGB format\n"
"\t\t (e.g., ``#ff7700'' for orange: same as HTML colors);\n"
"\t\t used with transparent images; overrides -bgpat option\n"
" pat \tdesired background pattern number (1-%d); used with\n"
"\t\t transparent images; overrides -bgcolor option\n"
" -timing\tenables delay for every block read, to simulate modem\n"
"\t\t download of image (~36 Kbps)\n"
#if (defined(__i386__) || defined(_M_IX86) || defined(__x86_64__))
" -nommx*\tdisable optimized MMX routines for decoding row filters,\n"
"\t\t combining rows, and expanding interlacing, respectively\n"
#endif
"\nPress Q, Esc or mouse button 1 after image is displayed to quit.\n"
"Press Q or Esc to quit this usage screen. ",
PROGNAME,
#if (defined(__i386__) || defined(_M_IX86) || defined(__x86_64__))
(int)strlen(PROGNAME), " ",
#endif
(int)strlen(PROGNAME), " ", default_display_exponent, num_bgpat);
fflush(stderr);
do
ch = _getch();
while (ch != 'q' && ch != 'Q' && ch != 0x1B);
exit(1);
}
if (!(infile = fopen(filename, "rb"))) {
fprintf(stderr, PROGNAME ": can't open PNG file [%s]\n", filename);
++error;
} else {
@@ -405,8 +478,7 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
switch (rc) {
case 2:
fprintf(stderr, PROGNAME
": [%s] has bad IHDR (libpng longjmp)\n",
filename);
": [%s] has bad IHDR (libpng longjmp)\n", filename);
break;
case 4:
fprintf(stderr, PROGNAME ": insufficient memory\n");
@@ -423,46 +495,14 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
}
/* usage screen */
if (error) {
int ch;
fprintf(stderr, "\n%s %s: %s\n\n", PROGNAME, VERSION, appname);
readpng2_version_info();
fprintf(stderr, "\n"
"Usage: %s [-gamma exp] [-bgcolor bg | -bgpat pat] [-timing]\n"
#if (defined(__i386__) || defined(_M_IX86))
" %*s [[-nommxfilters] [-nommxcombine] [-nommxinterlace] | -nommx]\n"
#endif
" %*s file.png\n\n"
" exp \ttransfer-function exponent (``gamma'') of the display\n"
"\t\t system in floating-point format (e.g., ``%.1f''); equal\n"
"\t\t to the product of the lookup-table exponent (varies)\n"
"\t\t and the CRT exponent (usually 2.2); must be positive\n"
" bg \tdesired background color in 7-character hex RGB format\n"
"\t\t (e.g., ``#ff7700'' for orange: same as HTML colors);\n"
"\t\t used with transparent images; overrides -bgpat option\n"
" pat \tdesired background pattern number (1-%d); used with\n"
"\t\t transparent images; overrides -bgcolor option\n"
" -timing\tenables delay for every block read, to simulate modem\n"
"\t\t download of image (~36 Kbps)\n"
#if (defined(__i386__) || defined(_M_IX86))
" -nommx*\tdisable optimized MMX routines for decoding row filters,\n"
"\t\t combining rows, and expanding interlacing, respectively\n"
#endif
"\nPress Q, Esc or mouse button 1 after image is displayed to quit.\n"
"Press Q or Esc to quit this usage screen. ",
PROGNAME,
#if (defined(__i386__) || defined(_M_IX86))
strlen(PROGNAME), " ",
#endif
strlen(PROGNAME), " ", default_display_exponent, num_bgpat);
fflush(stderr);
fprintf(stderr, PROGNAME ": aborting.\n");
do
ch = _getch();
while (ch != 'q' && ch != 'Q' && ch != 0x1B);
exit(1);
exit(2);
} else {
fprintf(stderr, "\n%s %s: %s\n", PROGNAME, VERSION, appname);
fprintf(stderr,
@@ -494,7 +534,7 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
} else
rpng2_info.need_bgcolor = TRUE;
rpng2_info.done = FALSE;
rpng2_info.state = kPreInit;
rpng2_info.mainprog_init = rpng2_win_init;
rpng2_info.mainprog_display_row = rpng2_win_display_row;
rpng2_info.mainprog_finish_display = rpng2_win_finish_display;
@@ -514,10 +554,27 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
if (readpng2_decode_data(&rpng2_info, inbuf, incount))
++error;
Trace((stderr, "done with readpng2_decode_data()\n"))
if (error || feof(infile) || rpng2_info.done)
if (error || incount != INBUFSIZE || rpng2_info.state == kDone) {
if (rpng2_info.state == kDone) {
Trace((stderr, "done decoding PNG image\n"))
} else if (ferror(infile)) {
fprintf(stderr, PROGNAME
": error while reading PNG image file\n");
exit(3);
} else if (feof(infile)) {
fprintf(stderr, PROGNAME ": end of file reached "
"(unexpectedly) while reading PNG image file\n");
exit(3);
} else /* if (error) */ {
// will print error message below
}
break;
}
if (timing)
Sleep(1000L);
incount = fread(inbuf, 1, INBUFSIZE, infile);
}
@@ -564,7 +621,7 @@ static void rpng2_win_init()
ulg rowbytes = rpng2_info.rowbytes;
Trace((stderr, "beginning rpng2_win_init()\n"))
Trace((stderr, " rowbytes = %ld\n", rpng2_info.rowbytes))
Trace((stderr, " rowbytes = %d\n", rpng2_info.rowbytes))
Trace((stderr, " width = %ld\n", rpng2_info.width))
Trace((stderr, " height = %ld\n", rpng2_info.height))
@@ -594,6 +651,8 @@ static void rpng2_win_init()
readpng2_cleanup(&rpng2_info);
return;
}
rpng2_info.state = kWindowInit;
}
@@ -1089,7 +1148,7 @@ static void rpng2_win_finish_display()
* we have nothing to do here except set a flag and let the user know
* that the image is done */
rpng2_info.done = TRUE;
rpng2_info.state = kDone;
printf(
"Done. Press Q, Esc or mouse button 1 (within image window) to quit.\n");
fflush(stdout);

923
contrib/gregbook/rpng2-x.c
View File

File diff suppressed because it is too large Load Diff

47
contrib/gregbook/wpng.c
View File

@@ -5,8 +5,10 @@
This program converts certain NetPBM binary files (grayscale and RGB,
maxval = 255) to PNG. Non-interlaced PNGs are written progressively;
interlaced PNGs are read and written in one memory-intensive blast.
Thanks to Jean-loup Gailly for providing the necessary trick to read
interactive text from the keyboard while stdin is redirected.
interactive text from the keyboard while stdin is redirected. Thanks
to Cosmin Truta for Cygwin fixes.
NOTE: includes provisional support for PNM type "8" (portable alphamap)
images, presumed to be a 32-bit interleaved RGBA format; no pro-
@@ -24,16 +26,32 @@
- 1.02: modified to allow abbreviated options
- 1.03: removed extraneous character from usage screen; fixed bug in
command-line parsing
- 1.04: fixed DOS/OS2/Win32 detection, including partial Cygwin fix
(see http://home.att.net/~perlspinr/diffs/GregBook_cygwin.diff)
- 2.00: dual-licensed (added GNU GPL)
[REPORTED BUG (win32 only): "contrib/gregbook/wpng.c - cmd line
dose not work! In order to do something useful I needed to redirect
both input and output, with cygwin and with bcc32 as well. Under
Linux, the same wpng appears to work fine. I don't know what is
the problem."]
---------------------------------------------------------------------------
Copyright (c) 1998-2000 Greg Roelofs. All rights reserved.
Copyright (c) 1998-2007 Greg Roelofs. All rights reserved.
This software is provided "as is," without warranty of any kind,
express or implied. In no event shall the author or contributors
be held liable for any damages arising in any way from the use of
this software.
The contents of this file are DUAL-LICENSED. You may modify and/or
redistribute this software according to the terms of one of the
following two licenses (at your option):
LICENSE 1 ("BSD-like with advertising clause"):
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute
it freely, subject to the following restrictions:
@@ -50,16 +68,35 @@
and contributors for the book, "PNG: The Definitive Guide,"
published by O'Reilly and Associates.
LICENSE 2 (GNU GPL v2 or later):
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
---------------------------------------------------------------------------*/
#define PROGNAME "wpng"
#define VERSION "1.03 of 19 March 2000"
#define VERSION "2.00 of 2 June 2007"
#define APPNAME "Simple PGM/PPM/PAM to PNG Converter"
#if defined(__MSDOS__) || defined(__OS2__)
# define DOS_OS2_W32
#elif defined(_WIN32) || defined(__WIN32__)
# define DOS_OS2_W32
#elif defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
# ifndef __GNUC__ /* treat Win32 native ports of gcc as Unix environments */
# define DOS_OS2_W32
# endif
#endif
#include <stdio.h>

26
contrib/gregbook/writepng.c
View File

@@ -4,13 +4,20 @@
---------------------------------------------------------------------------
Copyright (c) 1998-2000 Greg Roelofs. All rights reserved.
Copyright (c) 1998-2007 Greg Roelofs. All rights reserved.
This software is provided "as is," without warranty of any kind,
express or implied. In no event shall the author or contributors
be held liable for any damages arising in any way from the use of
this software.
The contents of this file are DUAL-LICENSED. You may modify and/or
redistribute this software according to the terms of one of the
following two licenses (at your option):
LICENSE 1 ("BSD-like with advertising clause"):
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute
it freely, subject to the following restrictions:
@@ -27,6 +34,23 @@
and contributors for the book, "PNG: The Definitive Guide,"
published by O'Reilly and Associates.
LICENSE 2 (GNU GPL v2 or later):
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
---------------------------------------------------------------------------*/

26
contrib/gregbook/writepng.h
View File

@@ -4,13 +4,20 @@
---------------------------------------------------------------------------
Copyright (c) 1998-2000 Greg Roelofs. All rights reserved.
Copyright (c) 1998-2007 Greg Roelofs. All rights reserved.
This software is provided "as is," without warranty of any kind,
express or implied. In no event shall the author or contributors
be held liable for any damages arising in any way from the use of
this software.
The contents of this file are DUAL-LICENSED. You may modify and/or
redistribute this software according to the terms of one of the
following two licenses (at your option):
LICENSE 1 ("BSD-like with advertising clause"):
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute
it freely, subject to the following restrictions:
@@ -27,6 +34,23 @@
and contributors for the book, "PNG: The Definitive Guide,"
published by O'Reilly and Associates.
LICENSE 2 (GNU GPL v2 or later):
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
---------------------------------------------------------------------------*/
#ifndef TRUE