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authorGeorg Brandl <georg@python.org>2008-05-17 15:21:58 (GMT)
committerGeorg Brandl <georg@python.org>2008-05-17 15:21:58 (GMT)
commit8291f8efae5be43333ed1c92b158da0e49bdc4ef (patch)
tree28daedc0764322b5dccd84277a18b6bd129016ba
parent7e6b33f00a73dad5ffe59aaf1d6ccef6ba0a47ac (diff)
downloadcpython-8291f8efae5be43333ed1c92b158da0e49bdc4ef.zip
cpython-8291f8efae5be43333ed1c92b158da0e49bdc4ef.tar.gz
cpython-8291f8efae5be43333ed1c92b158da0e49bdc4ef.tar.bz2
Tkinter: make stub modules.
-rw-r--r--Lib/lib-tk/tkFileDialog.py219
-rw-r--r--Lib/lib-tk/tkSimpleDialog.py323
2 files changed, 12 insertions, 530 deletions
diff --git a/Lib/lib-tk/tkFileDialog.py b/Lib/lib-tk/tkFileDialog.py
index a35feed..9e403c7 100644
--- a/Lib/lib-tk/tkFileDialog.py
+++ b/Lib/lib-tk/tkFileDialog.py
@@ -1,215 +1,8 @@
-#
-# Instant Python
-# $Id$
-#
-# tk common file dialogues
-#
-# this module provides interfaces to the native file dialogues
-# available in Tk 4.2 and newer, and the directory dialogue available
-# in Tk 8.3 and newer.
-#
-# written by Fredrik Lundh, May 1997.
-#
+import sys
+from warnings import warnpy3k
-#
-# options (all have default values):
-#
-# - defaultextension: added to filename if not explicitly given
-#
-# - filetypes: sequence of (label, pattern) tuples. the same pattern
-# may occur with several patterns. use "*" as pattern to indicate
-# all files.
-#
-# - initialdir: initial directory. preserved by dialog instance.
-#
-# - initialfile: initial file (ignored by the open dialog). preserved
-# by dialog instance.
-#
-# - parent: which window to place the dialog on top of
-#
-# - title: dialog title
-#
-# - multiple: if true user may select more than one file
-#
-# options for the directory chooser:
-#
-# - initialdir, parent, title: see above
-#
-# - mustexist: if true, user must pick an existing directory
-#
-#
+warnpy3k("the tkFileDialog module has been renamed "
+ "to 'tkinter.filedialog' in Python 3.0", stacklevel=2)
-
-from tkCommonDialog import Dialog
-
-class _Dialog(Dialog):
-
- def _fixoptions(self):
- try:
- # make sure "filetypes" is a tuple
- self.options["filetypes"] = tuple(self.options["filetypes"])
- except KeyError:
- pass
-
- def _fixresult(self, widget, result):
- if result:
- # keep directory and filename until next time
- import os
- # convert Tcl path objects to strings
- try:
- result = result.string
- except AttributeError:
- # it already is a string
- pass
- path, file = os.path.split(result)
- self.options["initialdir"] = path
- self.options["initialfile"] = file
- self.filename = result # compatibility
- return result
-
-
-#
-# file dialogs
-
-class Open(_Dialog):
- "Ask for a filename to open"
-
- command = "tk_getOpenFile"
-
- def _fixresult(self, widget, result):
- if isinstance(result, tuple):
- # multiple results:
- result = tuple([getattr(r, "string", r) for r in result])
- if result:
- import os
- path, file = os.path.split(result[0])
- self.options["initialdir"] = path
- # don't set initialfile or filename, as we have multiple of these
- return result
- if not widget.tk.wantobjects() and "multiple" in self.options:
- # Need to split result explicitly
- return self._fixresult(widget, widget.tk.splitlist(result))
- return _Dialog._fixresult(self, widget, result)
-
-class SaveAs(_Dialog):
- "Ask for a filename to save as"
-
- command = "tk_getSaveFile"
-
-
-# the directory dialog has its own _fix routines.
-class Directory(Dialog):
- "Ask for a directory"
-
- command = "tk_chooseDirectory"
-
- def _fixresult(self, widget, result):
- if result:
- # convert Tcl path objects to strings
- try:
- result = result.string
- except AttributeError:
- # it already is a string
- pass
- # keep directory until next time
- self.options["initialdir"] = result
- self.directory = result # compatibility
- return result
-
-#
-# convenience stuff
-
-def askopenfilename(**options):
- "Ask for a filename to open"
-
- return Open(**options).show()
-
-def asksaveasfilename(**options):
- "Ask for a filename to save as"
-
- return SaveAs(**options).show()
-
-def askopenfilenames(**options):
- """Ask for multiple filenames to open
-
- Returns a list of filenames or empty list if
- cancel button selected
- """
- options["multiple"]=1
- return Open(**options).show()
-
-# FIXME: are the following perhaps a bit too convenient?
-
-def askopenfile(mode = "r", **options):
- "Ask for a filename to open, and returned the opened file"
-
- filename = Open(**options).show()
- if filename:
- return open(filename, mode)
- return None
-
-def askopenfiles(mode = "r", **options):
- """Ask for multiple filenames and return the open file
- objects
-
- returns a list of open file objects or an empty list if
- cancel selected
- """
-
- files = askopenfilenames(**options)
- if files:
- ofiles=[]
- for filename in files:
- ofiles.append(open(filename, mode))
- files=ofiles
- return files
-
-
-def asksaveasfile(mode = "w", **options):
- "Ask for a filename to save as, and returned the opened file"
-
- filename = SaveAs(**options).show()
- if filename:
- return open(filename, mode)
- return None
-
-def askdirectory (**options):
- "Ask for a directory, and return the file name"
- return Directory(**options).show()
-
-# --------------------------------------------------------------------
-# test stuff
-
-if __name__ == "__main__":
- # Since the file name may contain non-ASCII characters, we need
- # to find an encoding that likely supports the file name, and
- # displays correctly on the terminal.
-
- # Start off with UTF-8
- enc = "utf-8"
- import sys
-
- # See whether CODESET is defined
- try:
- import locale
- locale.setlocale(locale.LC_ALL,'')
- enc = locale.nl_langinfo(locale.CODESET)
- except (ImportError, AttributeError):
- pass
-
- # dialog for openening files
-
- openfilename=askopenfilename(filetypes=[("all files", "*")])
- try:
- fp=open(openfilename,"r")
- fp.close()
- except:
- print "Could not open File: "
- print sys.exc_info()[1]
-
- print "open", openfilename.encode(enc)
-
- # dialog for saving files
-
- saveasfilename=asksaveasfilename()
- print "saveas", saveasfilename.encode(enc)
+import tkinter.filedialog
+sys.modules[__name__] = tkinter.filedialog
diff --git a/Lib/lib-tk/tkSimpleDialog.py b/Lib/lib-tk/tkSimpleDialog.py
index 6948a49..7230c8a 100644
--- a/Lib/lib-tk/tkSimpleDialog.py
+++ b/Lib/lib-tk/tkSimpleDialog.py
@@ -1,319 +1,8 @@
-#
-# An Introduction to Tkinter
-# tkSimpleDialog.py
-#
-# Copyright (c) 1997 by Fredrik Lundh
-#
-# fredrik@pythonware.com
-# http://www.pythonware.com
-#
+import sys
+from warnings import warnpy3k
-# --------------------------------------------------------------------
-# dialog base class
+warnpy3k("the tkSimpleDialog module has been renamed "
+ "to 'tkinter.simpledialog' in Python 3.0", stacklevel=2)
-'''Dialog boxes
-
-This module handles dialog boxes. It contains the following
-public symbols:
-
-Dialog -- a base class for dialogs
-
-askinteger -- get an integer from the user
-
-askfloat -- get a float from the user
-
-askstring -- get a string from the user
-'''
-
-from Tkinter import *
-
-class Dialog(Toplevel):
-
- '''Class to open dialogs.
-
- This class is intended as a base class for custom dialogs
- '''
-
- def __init__(self, parent, title = None):
-
- '''Initialize a dialog.
-
- Arguments:
-
- parent -- a parent window (the application window)
-
- title -- the dialog title
- '''
- Toplevel.__init__(self, parent)
-
- # If the master is not viewable, don't
- # make the child transient, or else it
- # would be opened withdrawn
- if parent.winfo_viewable():
- self.transient(parent)
-
- if title:
- self.title(title)
-
- self.parent = parent
-
- self.result = None
-
- body = Frame(self)
- self.initial_focus = self.body(body)
- body.pack(padx=5, pady=5)
-
- self.buttonbox()
-
- self.wait_visibility() # window needs to be visible for the grab
- self.grab_set()
-
- if not self.initial_focus:
- self.initial_focus = self
-
- self.protocol("WM_DELETE_WINDOW", self.cancel)
-
- if self.parent is not None:
- self.geometry("+%d+%d" % (parent.winfo_rootx()+50,
- parent.winfo_rooty()+50))
-
- self.initial_focus.focus_set()
-
- self.wait_window(self)
-
- def destroy(self):
- '''Destroy the window'''
- self.initial_focus = None
- Toplevel.destroy(self)
-
- #
- # construction hooks
-
- def body(self, master):
- '''create dialog body.
-
- return widget that should have initial focus.
- This method should be overridden, and is called
- by the __init__ method.
- '''
- pass
-
- def buttonbox(self):
- '''add standard button box.
-
- override if you do not want the standard buttons
- '''
-
- box = Frame(self)
-
- w = Button(box, text="OK", width=10, command=self.ok, default=ACTIVE)
- w.pack(side=LEFT, padx=5, pady=5)
- w = Button(box, text="Cancel", width=10, command=self.cancel)
- w.pack(side=LEFT, padx=5, pady=5)
-
- self.bind("<Return>", self.ok)
- self.bind("<Escape>", self.cancel)
-
- box.pack()
-
- #
- # standard button semantics
-
- def ok(self, event=None):
-
- if not self.validate():
- self.initial_focus.focus_set() # put focus back
- return
-
- self.withdraw()
- self.update_idletasks()
-
- try:
- self.apply()
- finally:
- self.cancel()
-
- def cancel(self, event=None):
-
- # put focus back to the parent window
- if self.parent is not None:
- self.parent.focus_set()
- self.destroy()
-
- #
- # command hooks
-
- def validate(self):
- '''validate the data
-
- This method is called automatically to validate the data before the
- dialog is destroyed. By default, it always validates OK.
- '''
-
- return 1 # override
-
- def apply(self):
- '''process the data
-
- This method is called automatically to process the data, *after*
- the dialog is destroyed. By default, it does nothing.
- '''
-
- pass # override
-
-
-# --------------------------------------------------------------------
-# convenience dialogues
-
-class _QueryDialog(Dialog):
-
- def __init__(self, title, prompt,
- initialvalue=None,
- minvalue = None, maxvalue = None,
- parent = None):
-
- if not parent:
- import Tkinter
- parent = Tkinter._default_root
-
- self.prompt = prompt
- self.minvalue = minvalue
- self.maxvalue = maxvalue
-
- self.initialvalue = initialvalue
-
- Dialog.__init__(self, parent, title)
-
- def destroy(self):
- self.entry = None
- Dialog.destroy(self)
-
- def body(self, master):
-
- w = Label(master, text=self.prompt, justify=LEFT)
- w.grid(row=0, padx=5, sticky=W)
-
- self.entry = Entry(master, name="entry")
- self.entry.grid(row=1, padx=5, sticky=W+E)
-
- if self.initialvalue:
- self.entry.insert(0, self.initialvalue)
- self.entry.select_range(0, END)
-
- return self.entry
-
- def validate(self):
-
- import tkMessageBox
-
- try:
- result = self.getresult()
- except ValueError:
- tkMessageBox.showwarning(
- "Illegal value",
- self.errormessage + "\nPlease try again",
- parent = self
- )
- return 0
-
- if self.minvalue is not None and result < self.minvalue:
- tkMessageBox.showwarning(
- "Too small",
- "The allowed minimum value is %s. "
- "Please try again." % self.minvalue,
- parent = self
- )
- return 0
-
- if self.maxvalue is not None and result > self.maxvalue:
- tkMessageBox.showwarning(
- "Too large",
- "The allowed maximum value is %s. "
- "Please try again." % self.maxvalue,
- parent = self
- )
- return 0
-
- self.result = result
-
- return 1
-
-
-class _QueryInteger(_QueryDialog):
- errormessage = "Not an integer."
- def getresult(self):
- return int(self.entry.get())
-
-def askinteger(title, prompt, **kw):
- '''get an integer from the user
-
- Arguments:
-
- title -- the dialog title
- prompt -- the label text
- **kw -- see SimpleDialog class
-
- Return value is an integer
- '''
- d = _QueryInteger(title, prompt, **kw)
- return d.result
-
-class _QueryFloat(_QueryDialog):
- errormessage = "Not a floating point value."
- def getresult(self):
- return float(self.entry.get())
-
-def askfloat(title, prompt, **kw):
- '''get a float from the user
-
- Arguments:
-
- title -- the dialog title
- prompt -- the label text
- **kw -- see SimpleDialog class
-
- Return value is a float
- '''
- d = _QueryFloat(title, prompt, **kw)
- return d.result
-
-class _QueryString(_QueryDialog):
- def __init__(self, *args, **kw):
- if kw.has_key("show"):
- self.__show = kw["show"]
- del kw["show"]
- else:
- self.__show = None
- _QueryDialog.__init__(self, *args, **kw)
-
- def body(self, master):
- entry = _QueryDialog.body(self, master)
- if self.__show is not None:
- entry.configure(show=self.__show)
- return entry
-
- def getresult(self):
- return self.entry.get()
-
-def askstring(title, prompt, **kw):
- '''get a string from the user
-
- Arguments:
-
- title -- the dialog title
- prompt -- the label text
- **kw -- see SimpleDialog class
-
- Return value is a string
- '''
- d = _QueryString(title, prompt, **kw)
- return d.result
-
-if __name__ == "__main__":
-
- root = Tk()
- root.update()
-
- print askinteger("Spam", "Egg count", initialvalue=12*12)
- print askfloat("Spam", "Egg weight\n(in tons)", minvalue=1, maxvalue=100)
- print askstring("Spam", "Egg label")
+import tkinter.simpledialog
+sys.modules[__name__] = tkinter.simpledialog
fc1bae42acefbb792faff6fb76d4934ad41'>src/3rdparty/libpng/scripts/makefile.intel14
-rw-r--r--src/3rdparty/libpng/scripts/makefile.knr12
-rw-r--r--src/3rdparty/libpng/scripts/makefile.linux14
-rw-r--r--src/3rdparty/libpng/scripts/makefile.mingw20
-rw-r--r--src/3rdparty/libpng/scripts/makefile.mips8
-rw-r--r--src/3rdparty/libpng/scripts/makefile.msc13
-rw-r--r--src/3rdparty/libpng/scripts/makefile.ne12bsd12
-rw-r--r--src/3rdparty/libpng/scripts/makefile.netbsd12
-rw-r--r--src/3rdparty/libpng/scripts/makefile.nommx45
-rw-r--r--src/3rdparty/libpng/scripts/makefile.openbsd13
-rw-r--r--src/3rdparty/libpng/scripts/makefile.os27
-rw-r--r--src/3rdparty/libpng/scripts/makefile.sco7
-rw-r--r--src/3rdparty/libpng/scripts/makefile.sggcc15
-rw-r--r--src/3rdparty/libpng/scripts/makefile.sgi9
-rw-r--r--src/3rdparty/libpng/scripts/makefile.so911
-rw-r--r--src/3rdparty/libpng/scripts/makefile.solaris12
-rw-r--r--src/3rdparty/libpng/scripts/makefile.solaris-x8611
-rw-r--r--src/3rdparty/libpng/scripts/makefile.std7
-rw-r--r--src/3rdparty/libpng/scripts/makefile.sunos7
-rw-r--r--src/3rdparty/libpng/scripts/makefile.vcawin3217
-rw-r--r--src/3rdparty/libpng/scripts/makefile.vcwin3213
-rw-r--r--src/3rdparty/libpng/scripts/makefile.watcom5
-rw-r--r--src/3rdparty/libpng/scripts/makevms.com4
-rw-r--r--src/3rdparty/libpng/scripts/pngos2.def2
-rw-r--r--src/3rdparty/libpng/scripts/pngw32.def3
-rw-r--r--src/3rdparty/libpng/scripts/smakefile.ppc5
86 files changed, 6426 insertions, 3614 deletions
diff --git a/src/3rdparty/libpng/ANNOUNCE b/src/3rdparty/libpng/ANNOUNCE
index 5580fb8..b73bbb5 100644
--- a/src/3rdparty/libpng/ANNOUNCE
+++ b/src/3rdparty/libpng/ANNOUNCE
@@ -1,5 +1,5 @@
-Libpng 1.2.29 - May 8, 2008
+Libpng 1.2.40 - September 10, 2009
This is a public release of libpng, intended for use in production codes.
@@ -8,53 +8,49 @@ Files available for download:
Source files with LF line endings (for Unix/Linux) and with a
"configure" script
- libpng-1.2.29.tar.gz
- libpng-1.2.29.tar.lzma
- (Get the lzma codec from <http://tukaani.org/lzma>).
- libpng-1.2.29.tar.bz2
+ libpng-1.2.40.tar.xz (LZMA-compressed, recommended)
+ libpng-1.2.40.tar.gz
+ libpng-1.2.40.tar.bz2
Source files with LF line endings (for Unix/Linux) without the
"configure" script
- libpng-1.2.29-no-config.tar.gz
- libpng-1.2.29-no-config.tar.lzma
- libpng-1.2.29-no-config.tar.bz2
+ libpng-1.2.40-no-config.tar.xz (LZMA-compressed, recommended)
+ libpng-1.2.40-no-config.tar.gz
+ libpng-1.2.40-no-config.tar.bz2
Source files with CRLF line endings (for Windows), without the
"configure" script
- lpng1229.zip
- lpng1229.7z
- lpng1229.tar.bz2
+ lpng1240.zip
+ lpng1240.7z
+ lpng1240.tar.bz2
Project files
- libpng-1.2.29-project-netware.zip
- libpng-1.2.29-project-wince.zip
+ libpng-1.2.40-project-netware.zip
+ libpng-1.2.40-project-wince.zip
Other information:
- libpng-1.2.29-README.txt
- libpng-1.2.29-KNOWNBUGS.txt
- libpng-1.2.29-LICENSE.txt
- libpng-1.2.29-Y2K-compliance.txt
- libpng-1.2.29-[previous version]-diff.txt
+ libpng-1.2.40-README.txt
+ libpng-1.2.40-KNOWNBUGS.txt
+ libpng-1.2.40-LICENSE.txt
+ libpng-1.2.40-Y2K-compliance.txt
+ libpng-1.2.40-[previous version]-diff.txt
-Changes since the last public release (1.2.28):
+Changes since the last public release (1.2.39):
-version 1.2.29 [May 8, 2008]
+version 1.2.40 [September 10, 2009]
- Removed some stray *.diff and *.orig files
- Reverted Makefile.in, aclocal.m4, and configure to the libpng-1.2.26
- versions.
- Added --force to autogen libtoolize options and --force-missing to
- automake options.
- Changed $(ECHO) to echo in Makefile.am and Makefile.in
- Updated all configure files to autoconf-2.62
- #ifdef out pnggcrd.c code if using MSC_VER
+ Removed an extra png_debug() recently added to png_write_find_filter().
+ Fixed incorrect #ifdef in pngset.c regarding unknown chunk support.
+ Various bugfixes and improvements to CMakeLists.txt (Philip Lowman)
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
-(subscription required; visit
+
+Send comments/corrections/commendations to png-mng-implement at lists.sf.net
+(subscription required; visit
https://lists.sourceforge.net/lists/listinfo/png-mng-implement
to subscribe) or to glennrp at users.sourceforge.net
diff --git a/src/3rdparty/libpng/CHANGES b/src/3rdparty/libpng/CHANGES
index 590987c..9bb8ac8 100644
--- a/src/3rdparty/libpng/CHANGES
+++ b/src/3rdparty/libpng/CHANGES
@@ -1,4 +1,4 @@
-
+/*
CHANGES - changes for libpng
version 0.2
@@ -539,7 +539,8 @@ version 1.0.5d [November 29, 1999]
Eliminated pngtypes.h; use macros instead to declare PNG_CHNK arrays.
Renamed "PNG_GLOBAL_ARRAYS" to "PNG_USE_GLOBAL_ARRAYS" and made available
to applications a macro "PNG_USE_LOCAL_ARRAYS".
- #ifdef out all the new declarations when PNG_USE_GLOBAL_ARRAYS is defined.
+ Remove all the new declarations with #ifdef/#endif when
+ PNG_USE_GLOBAL_ARRAYS is defined.
Added PNG_EXPORT_VAR macro to accommodate making DLL's.
version 1.0.5e [November 30, 1999]
Added iCCP, iTXt, and sPLT support; added "lang" member to the png_text
@@ -1179,7 +1180,7 @@ version 1.2.4beta3 [June 28, 2002]
Plugged memory leak of row_buf in pngtest.c when there is a png_error().
Detect buffer overflow in pngpread.c when IDAT is corrupted with extra data.
Added "test-installed" target to makefile.32sunu, makefile.64sunu,
- makefile.beos, makefile.darwin, makefile.dec, makefile.macosx,
+ makefile.beos, makefile.darwin, makefile.dec, makefile.macosx,
makefile.solaris, makefile.hpux, makefile.hpgcc, and makefile.so9.
version 1.2.4rc1 and 1.0.14rc1 [July 2, 2002]
Added "test-installed" target to makefile.cygwin and makefile.sco.
@@ -1300,7 +1301,7 @@ version 1.2.6beta4 [July 28, 2004]
Added PNG_NO_SEQUENTIAL_READ_SUPPORTED macro to conditionally remove
sequential read support.
Added some "#if PNG_WRITE_SUPPORTED" blocks.
- #ifdef'ed out some redundancy in png_malloc_default().
+ Removed some redundancy with #ifdef/#endif in png_malloc_default().
Use png_malloc instead of png_zalloc to allocate the pallete.
version 1.0.16rc1 and 1.2.6rc1 [August 4, 2004]
Fixed buffer overflow vulnerability in png_handle_tRNS()
@@ -1370,7 +1371,8 @@ version 1.2.8beta1 [November 1, 2004]
Fixed bug, introduced in libpng-1.2.7, that overruns a buffer during
strip alpha operation in png_do_strip_filler().
Added PNG_1_2_X definition in pngconf.h
- #ifdef out png_info_init in png.c and png_read_init in pngread.c (as of 1.3.0)
+ Comment out with #ifdef/#endif png_info_init in png.c and png_read_init
+ in pngread.c (as of 1.3.0)
version 1.2.8beta2 [November 2, 2004]
Reduce color_type to a nonalpha type after strip alpha operation in
png_do_strip_filler().
@@ -1387,7 +1389,7 @@ version 1.2.8beta5 [November 20, 2004]
Use png_ptr->flags instead of png_ptr->transformations to pass
PNG_STRIP_ALPHA info to png_do_strip_filler(), to preserve ABI
compatibility.
- Revised handling of SPECIALBUILD, PRIVATEBUILD,
+ Revised handling of SPECIALBUILD, PRIVATEBUILD,
PNG_LIBPNG_BUILD_SPECIAL_STRING and PNG_LIBPNG_BUILD_PRIVATE_STRING.
version 1.2.8rc1 [November 24, 2004]
Moved handling of BUILD macros from pngconf.h to png.h
@@ -1685,14 +1687,14 @@ version 1.2.16beta1 [January 6, 2007]
version 1.2.16beta2 [January 16, 2007]
Revised scripts/CMakeLists.txt
-
+
version 1.0.24, 1.2.16 [January 31, 2007]
No changes.
-
+
version 1.2.17beta1 [March 6, 2007]
Revised scripts/CMakeLists.txt to install both shared and static libraries.
Deleted a redundant line from pngset.c.
-
+
version 1.2.17beta2 [April 26, 2007]
Relocated misplaced test for png_ptr == NULL in pngpread.c
Change "==" to "&" for testing PNG_RGB_TO_GRAY_ERR & PNG_RGB_TO_GRAY_WARN
@@ -1713,7 +1715,7 @@ version 1.2.17rc2 [May 8, 2007]
Added png_ptr->unknown_chunk to hold working unknown chunk data, so it
can be free'ed in case of error. Revised unknown chunk handling in
pngrutil.c and pngpread.c to use this structure.
-
+
version 1.2.17rc3 [May 8, 2007]
Revised symbol-handling in configure script.
@@ -1756,9 +1758,9 @@ version 1.2.19beta6 [May 22, 2007]
Added a special "_MSC_VER" case that defines png_snprintf to _snprintf
version 1.2.19beta7 [May 22, 2007]
- Squelched png_squelch_warnings() in pnggccrd.c and added an
- #ifdef PNG_MMX_CODE_SUPPORTED block around the declarations that caused
- the warnings that png_squelch_warnings was squelching.
+ Squelched png_squelch_warnings() in pnggccrd.c and added
+ an #ifdef PNG_MMX_CODE_SUPPORTED/#endif block around the declarations
+ that caused the warnings that png_squelch_warnings was squelching.
version 1.2.19beta8 [May 22, 2007]
Removed __MMX__ from test in pngconf.h.
@@ -2107,7 +2109,7 @@ version 1.2.27beta01 [April 12, 2008]
Fixed bug (introduced in libpng-1.0.5h) with handling zero-length
unknown chunks.
Added more information about png_set_keep_unknown_chunks() to the
- documetation.
+ documentation.
Reject tRNS chunk with out-of-range samples instead of masking off
the invalid high bits as done in since libpng-1.2.19beta5.
@@ -2127,7 +2129,7 @@ version 1.2.27beta04 [April 18, 2008]
Rebuilt Makefile.in, aclocal.m4, and configure with autoconf-2.62
version 1.2.27beta05 [April 19, 2008]
- Added MAINTEINERCLEANFILES variable to Makefile.am
+ Added MAINTAINERCLEANFILES variable to Makefile.am
version 1.2.27beta06 [April 21, 2008]
Avoid changing color_type from GRAY to RGB by
@@ -2156,7 +2158,7 @@ version 1.2.29beta03 [May 2, 2008]
automake options.
Changed $(ECHO) to echo in Makefile.am and Makefile.in
Updated all configure files to autoconf-2.62
- #ifdef out pnggcrd.c code if using MSC_VER
+ Comment out pnggcrd.c code with #ifdef/#endif if using MSC_VER
version 1.2.29rc01 [May 4, 2008]
No changes.
@@ -2164,6 +2166,309 @@ version 1.2.29rc01 [May 4, 2008]
version 1.0.35 and 1.2.29 [May 8, 2008]
No changes.
+version 1.0.37 [May 9, 2008]
+ Updated Makefile.in and configure (omitted version 1.0.36).
+
+version 1.2.30beta01 [May 29, 2008]
+ Updated libpng.pc-configure.in and libpng-config.in per debian bug reports.
+
+version 1.2.30beta02 [June 25, 2008]
+ Restored png_flush(png_ptr) at the end of png_write_end(), that was
+ removed from libpng-1.0.9beta03.
+
+version 1.2.30beta03 [July 6, 2008]
+ Merged some cosmetic whitespace changes from libpng-1.4.0beta19.
+ Inline call of png_get_uint_32() in png_get_uint_31(), as in 1.4.0beta19.
+ Added demo of decoding vpAg and sTER chunks to pngtest.c, from 1.4.0beta19.
+ Changed PNGMAJ from 0 to 12 in makefile.darwin, which does not like 0.
+ Added new private function png_read_chunk_header() from 1.4.0beta19.
+ Merge reading of chunk length and chunk type into a single 8-byte read.
+ Merge writing of chunk length and chunk type into a single 8-byte write.
+
+version 1.2.30beta04 [July 10, 2008]
+ Merged more cosmetic whitespace changes from libpng-1.4.0beta19.
+
+version 1.0.38rc01, 1.2.30rc01 [July 18, 2008]
+ No changes.
+
+version 1.0.38rc02, 1.2.30rc02 [July 21, 2008]
+ Moved local array "chunkdata" from pngrutil.c to the png_struct, so
+ it will be freed by png_read_destroy() in case of a read error (Kurt
+ Christensen).
+
+version 1.0.38rc03, 1.2.30rc03 [July 21, 2008]
+ Changed "purpose" and "buffer" to png_ptr->chunkdata to avoid memory leaking.
+
+version 1.0.38rc04, 1.2.30rc04 [July 22, 2008]
+ Changed "chunkdata = NULL" to "png_ptr->chunkdata = NULL" several places in
+ png_decompress_chunk().
+
+version 1.0.38rc05, 1.2.30rc05 [July 25, 2008]
+ Changed all remaining "chunkdata" to "png_ptr->chunkdata" in
+ png_decompress_chunk() and remove chunkdata from parameter list.
+ Put a call to png_check_chunk_name() in png_read_chunk_header().
+ Revised png_check_chunk_name() to reject a name with a lowercase 3rd byte.
+ Removed two calls to png_check_chunk_name() occuring later in the process.
+
+version 1.0.38rc06, 1.2.30rc06 [July 29, 2008]
+ Added a call to png_check_chunk_name() in pngpread.c
+ Reverted png_check_chunk_name() to accept a name with a lowercase 3rd byte.
+
+version 1.0.38r07, 1.2.30r07 [August 2, 2008]
+ Changed "-Wall" to "-W -Wall" in the CFLAGS in all makefiles (Cosmin Truta)
+ Declared png_ptr "volatile" in pngread.c and pngwrite.c to avoid warnings.
+ Added code in pngset.c to quiet compiler warnings.
+ Updated contrib/visupng/cexcept.h to version 2.0.1
+ Relocated a misplaced "#endif /* PNG_NO_WRITE_FILTER */" in pngwutil.c
+
+version 1.0.38r08, 1.2.30r08 [August 2, 2008]
+ Enclose "volatile" declarations in #ifdef PNG_SETJMP_SUPPORTED (Cosmin).
+
+version 1.0.38, 1.2.30 [August 14, 2008]
+ No changes.
+
+version 1.2.31rc01 [August 19, 2008]
+ Removed extra crc check at the end of png_handle_cHRM(). Bug introduced
+ in libpng-1.2.30beta03 (Heiko Nitzsche).
+
+version 1.2.31rc02 [August 19, 2008]
+ Added PNG_WRITE_FLUSH_SUPPORTED block around new png_flush() call.
+
+version 1.2.31rc03 [August 19, 2008]
+ Added PNG_WRITE_FLUSH_AFTER_IEND_SUPPORTED block, off by default, around
+ new png_flush().
+
+version 1.0.39, 1.2.31 [August 21, 2008]
+ No changes.
+
+version 1.2.32beta01 [September 6, 2008]
+ Shortened tIME_string to 29 bytes in pngtest.c (bug introduced in
+ libpng-1.2.22).
+ Fixed off-by-one error introduced in png_push_read_zTXt() function in
+ libpng-1.2.30beta04/pngpread.c (Harald van Dijk)
+ These bugs have been given the vulnerability id CVE-2008-3964.
+
+version 1.0.40, 1.2.32 [September 18, 2008]
+ No changes.
+
+version 1.2.33beta01 [October 6, 2008]
+ Revised makefile.darwin to fix shared library numbering.
+ Change png_set_gray_1_2_4_to_8() to png_set_expand_gray_1_2_4_to_8()
+ in example.c (debian bug report)
+
+version 1.2.33rc01 [October 15, 2008]
+ No changes.
+
+version 1.0.41rc01, version 1.2.33rc02 [October 23, 2008]
+ Changed remaining "key" to "png_ptr->chunkdata" in png_handle_tEXt()
+ to avoid memory leak after memory failure while reading tEXt chunk.`
+
+version 1.2.33 [October 31, 2008]
+ No changes.
+
+version 1.2.34beta01 [November 27, 2008]
+ Revised png_warning() to write its message on standard output by default
+ when warning_fn is NULL. This was the behavior prior to libpng-1.2.9beta9.
+ Fixed string vs pointer-to-string error in png_check_keyword().
+ Added png_check_cHRM_fixed() in png.c and moved checking from pngget.c,
+ pngrutil.c, and pngwrite.c, and eliminated floating point cHRM checking.
+ Added check for zero-area RGB cHRM triangle in png_check_cHRM_fixed().
+ In png_check_cHRM_fixed(), ensure white_y is > 0, and removed redundant
+ check for all-zero coordinates that is detected by the triangle check.
+ Revised png_warning() to write its message on standard output by default
+ when warning_fn is NULL.
+
+version 1.2.34beta02 [November 28, 2008]
+ Corrected off-by-one error in bKGD validity check in png_write_bKGD()
+ and in png_handle_bKGD().
+
+version 1.2.34beta03 [December 1, 2008]
+ Revised bKGD validity check to use >= x instead of > x + 1
+ Merged with png_debug from libpng-1.4.0 to remove newlines.
+
+version 1.2.34beta04 [December 2, 2008]
+ More merging with png_debug from libpng-1.4.0 to remove newlines.
+
+version 1.2.34beta05 [December 5, 2008]
+ Removed redundant check for key==NULL before calling png_check_keyword()
+ to ensure that new_key gets initialized and removed extra warning
+ (Arvan Pritchard).
+
+version 1.2.34beta06 [December 9, 2008]
+ In png_write_png(), respect the placement of the filler bytes in an earlier
+ call to png_set_filler() (Jim Barry).
+
+version 1.2.34beta07 [December 9, 2008]
+ Undid previous change and added PNG_TRANSFORM_STRIP_FILLER_BEFORE and
+ PNG_TRANSFORM_STRIP_FILLER_AFTER conditionals and deprecated
+ PNG_TRANSFORM_STRIP_FILLER (Jim Barry).
+
+version 1.0.42rc01, 1.2.34rc01 [December 11, 2008]
+ No changes.
+
+version 1.0.42, 1.2.34 [December 18, 2008]
+ No changes.
+
+version 1.2.35beta01 [February 4, 2009]
+ Zero out some arrays of pointers after png_malloc(). (Tavis Ormandy)
+
+version 1.2.35beta02 [February 4, 2009]
+ Zero out more arrays of pointers after png_malloc().
+
+version 1.2.35beta03 [February 5, 2009]
+ Use png_memset() instead of a loop to intialize pointers. We realize
+ this will not work on platforms where the NULL pointer is not all zeroes.
+
+version 1.2.35rc01 [February 11, 2009]
+ No changes.
+
+version 1.2.35rc02 [February 12, 2009]
+ Fix typo in new png_memset call in pngset.c (png_color should be png_charp)
+
+version 1.0.43 and 1.2.35 [February 14, 2009]
+ No changes.
+
+version 1.2.36beta01 [February 28, 2009]
+ Revised comments in png_set_read_fn() and png_set_write_fn().
+ Revised order of #ifdef's and indentation in png_debug definitions of png.h
+ bug introduced in libpng-1.2.34.
+
+version 1.2.36beta02 [March 21, 2009]
+ Use png_memset() after png_malloc() of big_row_buf when reading an
+ interlaced file, to avoid a possible UMR.
+ Undid recent revision of PNG_NO_STDIO version of png_write_flush(). Users
+ having trouble with fflush() can build with PNG_NO_WRITE_FLUSH defined.
+ Revised libpng*.txt documentation about use of png_write_flush().
+ Removed fflush() from pngtest.c.
+ Added "#define PNG_NO_WRITE_FLUSH" to contrib/pngminim/encoder/pngusr.h
+
+version 1.2.36beta03 [March 27, 2009]
+ Relocated misplaced PNG_1_0_X define in png.h that caused the prototype
+ for png_set_strip_error_numbers() to be omitted from PNG_NO_ASSEMBLER_CODE
+ builds. This bug was introduced in libpng-1.2.15beta4.
+ Added a section on differences between 1.0.x and 1.2.x to libpng.3/libpng.txt
+
+version 1.2.36beta04 [April 5, 2009]
+ Fixed potential memory leak of "new_name" in png_write_iCCP() (Ralph Giles)
+
+version 1.2.36beta05 [April 24, 2009]
+ Added "ifndef PNG_SKIP_SETJMP_CHECK" block in pngconf.h to allow
+ application code writers to bypass the check for multiple inclusion
+ of setjmp.h when they know that it is safe to ignore the situation.
+ Made some cosmetic changes to whitespace in pngtest output.
+ Renamed "user_chunk_data" to "my_user_chunk_data" in pngtest.c to suppress
+ "shadowed declaration" warning from gcc-4.3.3.
+ Renamed "gamma" to "png_gamma" in pngset.c to avoid "shadowed declaration"
+ warning about a global "gamma" variable in math.h on some platforms.
+
+version 1.2.36rc01 [April 30, 2009]
+ No changes.
+
+version 1.0.44 and 1.2.36 [May 7, 2009]
+ No changes.
+
+version 1.2.37beta01 [May 14, 2009]
+ Fixed inconsistency in pngrutil.c, introduced in libpng-1.2.36. The
+ memset() was using "png_ptr->rowbytes" instead of "row_bytes", which
+ the corresponding png_malloc() uses (Joe Drew).
+ Clarified usage of sig_bit versus sig_bit_p in example.c (Vincent Torri)
+ Updated some of the makefiles in the scripts directory (merged with
+ those in libpng-1.4.0beta57).
+
+version 1.2.37beta02 [May 19, 2009]
+ Fixed typo in libpng documentation (FILTER_AVE should be FILTER_AVG)
+ Relocated misplaced #endif in pngwrite.c, sCAL chunk handler.
+ Conditionally compile png_read_finish_row() which is not used by
+ progressive readers.
+ Added contrib/pngminim/preader to demonstrate building minimal progressive
+ decoder, based on contrib/gregbook with embedded libpng and zlib.
+
+version 1.2.37beta03 [May 20, 2009]
+ In contrib/pngminim/*, renamed "makefile.std" to "makefile", since there
+ is only one makefile in those directories, and revised the README files
+ accordingly.
+ Reformated sources in libpng style (3-space indentation, comment format)
+
+version 1.2.37rc01 [May 27, 2009]
+ No changes.
+
+versions 1.2.37 and 1.0.45 [June 4, 2009]
+ Reformatted several remaining "else statement;" and "if () statement;" into
+ two lines.
+ Added "#define PNG_NO_WRITE_SWAP" to contrib/pngminim/encoder/pngusr.h
+ and "define PNG_NO_READ_SWAP" to decoder/pngusr.h and preader/pngusr.h
+ Added sections about the git repository and our coding style to the
+ documentation (merged from libpng-1.4.0beta62)
+ Added a section to the libpng documentation about using png_get_io_ptr()
+ in configure scripts to detect the presence of libpng.
+
+version 1.2.38beta01 [June 17, 2009]
+ Revised libpng*.txt and libpng.3 to mention calling png_set_IHDR()
+ multiple times and to specify the sample order in the tRNS chunk,
+ because the ISO PNG specification has a typo in the tRNS table.
+ Changed several PNG_UNKNOWN_CHUNK_SUPPORTED to
+ PNG_HANDLE_AS_UNKNOWN_SUPPORTED, to make the png_set_keep mechanism
+ available for ignoring known chunks even when not saving unknown chunks.
+ Adopted preference for consistent use of "#ifdef" and "#ifndef" versus
+ "#if defined()" and "if !defined()" where possible.
+ Added PNG_NO_HANDLE_AS_UNKNOWN in the PNG_LEGACY_SUPPORTED block of
+ pngconf.h, and moved the various unknown chunk macro definitions
+ outside of the PNG_READ|WRITE_ANCILLARY_CHUNK_SUPPORTED blocks.
+
+version 1.0.46 [June 18, 2009]
+ Removed some editing cruft from scripts/libpng.pc.in and some makefiles.
+
+version 1.2.38rc01 [June 24, 2009]
+ No changes.
+
+version 1.2.38rc02 [June 29, 2009]
+ Added a reference to the libpng license in each source file.
+
+version 1.2.38rc03 [July 11, 2009]
+ Revised references to the libpng license in pngconf.h and contrib/visupng
+ source files.
+ Rebuilt configure scripts with autoconf-2.63.
+
+version 1.0.47 and 1.2.38 [July 16, 2009]
+ No changes.
+
+version 1.2.39beta01 [July 25, 2009]
+ Added a prototype for png_64bit_product() in png.c
+
+version 1.2.39beta02 [July 27, 2009]
+ Avoid a possible NULL dereference in debug build, in png_set_text_2().
+ (bug introduced in libpng-0.95, discovered by Evan Rouault)
+
+version 1.2.39beta03 [July 29, 2009]
+ Relocated new png_64_bit_product() prototype into png.h
+ Expanded the information about prototypes in the libpng style section of
+ the documentation.
+ Rebuilt configure scripts with autoconf-2.64.
+
+version 1.2.39beta04 [August 1, 2009]
+ Replaced *.tar.lzma with *.txz in distribution. Get the xz codec
+ from <http://tukaani.org/xz>.
+
+version 1.2.39beta05 [August 1, 2009]
+ Reject attempt to write iCCP chunk with negative embedded profile length
+ (JD Chen)
+
+version 1.2.39c01 [August 6, 2009]
+ No changes.
+
+version 1.2.39 and 1.0.48 [August 13, 2009]
+ No changes.
+
+version 1.2.40beta01 [August 20, 2009]
+ Removed an extra png_debug() recently added to png_write_find_filter().
+ Fixed incorrect #ifdef in pngset.c regarding unknown chunk support.
+
+version 1.2.40rc01 [September 2, 2009]
+ Various bugfixes and improvements to CMakeLists.txt (Philip Lowman)
+
+version 1.2.40 and 1.0.49 [September 10, 2009]
+ No changes.
+
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit
https://lists.sourceforge.net/lists/listinfo/png-mng-implement
@@ -2171,3 +2476,4 @@ to subscribe)
or to glennrp at users.sourceforge.net
Glenn R-P
+*/
diff --git a/src/3rdparty/libpng/INSTALL b/src/3rdparty/libpng/INSTALL
index 6060e31..2986ae3 100644
--- a/src/3rdparty/libpng/INSTALL
+++ b/src/3rdparty/libpng/INSTALL
@@ -1,5 +1,5 @@
-Installing libpng version 1.2.29 - May 8, 2008
+Installing libpng version 1.2.40 - September 10, 2009
On Unix/Linux and similar systems, you can simply type
@@ -44,7 +44,7 @@ to have access to the zlib.h and zconf.h include files that
correspond to the version of zlib that's installed.
You can rename the directories that you downloaded (they
-might be called "libpng-1.2.29" or "lpng109" and "zlib-1.2.1"
+might be called "libpng-1.2.40" or "lpng109" and "zlib-1.2.1"
or "zlib121") so that you have directories called "zlib" and "libpng".
Your directory structure should look like this:
@@ -101,9 +101,9 @@ include
CMakeLists.txt => "cmake" script
makefile.std => Generic UNIX makefile (cc, creates static libpng.a)
makefile.elf => Linux/ELF makefile symbol versioning,
- gcc, creates libpng12.so.0.1.2.29)
+ gcc, creates libpng12.so.0.1.2.40)
makefile.linux => Linux/ELF makefile
- (gcc, creates libpng12.so.0.1.2.29)
+ (gcc, creates libpng12.so.0.1.2.40)
makefile.gcc => Generic makefile (gcc, creates static libpng.a)
makefile.knr => Archaic UNIX Makefile that converts files with
ansi2knr (Requires ansi2knr.c from
@@ -125,14 +125,14 @@ include
makefile.openbsd => OpenBSD makefile
makefile.sgi => Silicon Graphics IRIX makefile (cc, creates static lib)
makefile.sggcc => Silicon Graphics (gcc,
- creates libpng12.so.0.1.2.29)
+ creates libpng12.so.0.1.2.40)
makefile.sunos => Sun makefile
makefile.solaris => Solaris 2.X makefile (gcc,
- creates libpng12.so.0.1.2.29)
+ creates libpng12.so.0.1.2.40)
makefile.solaris-x86 => Solaris/intelMMX 2.X makefile (gcc,
- creates libpng12.so.0.1.2.29)
+ creates libpng12.so.0.1.2.40)
makefile.so9 => Solaris 9 makefile (gcc,
- creates libpng12.so.0.1.2.29)
+ creates libpng12.so.0.1.2.40)
makefile.32sunu => Sun Ultra 32-bit makefile
makefile.64sunu => Sun Ultra 64-bit makefile
makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc
diff --git a/src/3rdparty/libpng/KNOWNBUG b/src/3rdparty/libpng/KNOWNBUG
index 7688a9c..5e0c96f 100644
--- a/src/3rdparty/libpng/KNOWNBUG
+++ b/src/3rdparty/libpng/KNOWNBUG
@@ -1,5 +1,5 @@
-Known bugs in libpng version 1.2.29
+Known bugs in libpng version 1.2.40
1. February 23, 2006: The custom makefiles don't build libpng with -lz.
diff --git a/src/3rdparty/libpng/LICENSE b/src/3rdparty/libpng/LICENSE
index 072d9ef..93dd04a 100644
--- a/src/3rdparty/libpng/LICENSE
+++ b/src/3rdparty/libpng/LICENSE
@@ -8,8 +8,10 @@ COPYRIGHT NOTICE, DISCLAIMER, and LICENSE:
If you modify libpng you may insert additional notices immediately following
this sentence.
-libpng versions 1.2.6, August 15, 2004, through 1.2.29, May 8, 2008, are
-Copyright (c) 2004, 2006-2008 Glenn Randers-Pehrson, and are
+This code is released under the libpng license.
+
+libpng versions 1.2.6, August 15, 2004, through 1.2.40, September 10, 2009, are
+Copyright (c) 2004, 2006-2009 Glenn Randers-Pehrson, and are
distributed according to the same disclaimer and license as libpng-1.2.5
with the following individual added to the list of Contributing Authors
@@ -106,4 +108,4 @@ certification mark of the Open Source Initiative.
Glenn Randers-Pehrson
glennrp at users.sourceforge.net
-May 8, 2008
+September 10, 2009
diff --git a/src/3rdparty/libpng/README b/src/3rdparty/libpng/README
index fd2dbb1..171b65a 100644
--- a/src/3rdparty/libpng/README
+++ b/src/3rdparty/libpng/README
@@ -1,4 +1,4 @@
-README for libpng version 1.2.29 - May 8, 2008 (shared library 12.0)
+README for libpng version 1.2.40 - September 10, 2009 (shared library 12.0)
See the note about version numbers near the top of png.h
See INSTALL for instructions on how to install libpng.
@@ -6,7 +6,10 @@ See INSTALL for instructions on how to install libpng.
Libpng comes in several distribution formats. Get libpng-*.tar.gz,
libpng-*.tar.lzma, or libpng-*.tar.bz2 if you want UNIX-style line
endings in the text files, or lpng*.7z or lpng*.zip if you want DOS-style
-line endings.
+line endings. You can get UNIX-style line endings from the *.zip file
+by using "unzip -a" but there seems to be no simple way to recover
+UNIX-style line endings from the *.7z file. The *.tar.lzma file is
+recommended for *NIX users instead.
Version 0.89 was the first official release of libpng. Don't let the
fact that it's the first release fool you. The libpng library has been in
@@ -55,7 +58,7 @@ to set different actions based on whether the CRC error occurred in a
critical or an ancillary chunk.
The changes made to the library, and bugs fixed are based on discussions
-on the PNG-implement mailing list
+on the png-mng-implement mailing list
and not on material submitted privately to Guy, Andreas, or Glenn. They will
forward any good suggestions to the list.
@@ -111,14 +114,14 @@ to subscribe) or to glennrp at users.sourceforge.net
You can't reach Guy, the original libpng author, at the addresses
given in previous versions of this document. He and Andreas will read mail
-addressed to the png-implement list, however.
+addressed to the png-mng-implement list, however.
Please do not send general questions about PNG. Send them to
the (png-mng-misc at lists.sourceforge.net, subscription required, visit
https://lists.sourceforge.net/lists/listinfo/png-mng-implement to subscribe)
On the other hand,
please do not send libpng questions to that address, send them to me
-or to the png-implement list. I'll
+or to the png-mng-implement list. I'll
get them in the end anyway. If you have a question about something
in the PNG specification that is related to using libpng, send it
to me. Send me any questions that start with "I was using libpng,
@@ -191,11 +194,11 @@ Files in this distribution:
descrip.mms => VMS makefile for MMS or MMK
makefile.std => Generic UNIX makefile (cc, creates static libpng.a)
makefile.elf => Linux/ELF makefile symbol versioning,
- gcc, creates libpng12.so.0.1.2.29)
+ gcc, creates libpng12.so.0.1.2.40)
makefile.linux => Linux/ELF makefile
- (gcc, creates libpng12.so.0.1.2.29)
+ (gcc, creates libpng12.so.0.1.2.40)
makefile.gcmmx => Linux/ELF makefile
- (gcc, creates libpng12.so.0.1.2.29,
+ (gcc, creates libpng12.so.0.1.2.40,
uses assembler code tuned for Intel MMX platform)
makefile.gcc => Generic makefile (gcc, creates static libpng.a)
makefile.knr => Archaic UNIX Makefile that converts files with
@@ -217,12 +220,12 @@ Files in this distribution:
makefile.openbsd => OpenBSD makefile
makefile.sgi => Silicon Graphics IRIX (cc, creates static lib)
makefile.sggcc => Silicon Graphics
- (gcc, creates libpng12.so.0.1.2.29)
+ (gcc, creates libpng12.so.0.1.2.40)
makefile.sunos => Sun makefile
makefile.solaris => Solaris 2.X makefile
- (gcc, creates libpng12.so.0.1.2.29)
+ (gcc, creates libpng12.so.0.1.2.40)
makefile.so9 => Solaris 9 makefile
- (gcc, creates libpng12.so.0.1.2.29)
+ (gcc, creates libpng12.so.0.1.2.40)
makefile.32sunu => Sun Ultra 32-bit makefile
makefile.64sunu => Sun Ultra 64-bit makefile
makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc
diff --git a/src/3rdparty/libpng/TODO b/src/3rdparty/libpng/TODO
index a5f6395..face765 100644
--- a/src/3rdparty/libpng/TODO
+++ b/src/3rdparty/libpng/TODO
@@ -22,3 +22,4 @@ Build gamma tables using fixed point (and do away with floating point entirely).
Use greater precision when changing to linear gamma for compositing against
background and doing rgb-to-gray transformation.
Investigate pre-incremented loop counters and other loop constructions.
+Add interpolated method of handling interlacing.
diff --git a/src/3rdparty/libpng/Y2KINFO b/src/3rdparty/libpng/Y2KINFO
index 43348df..e31bb7f 100644
--- a/src/3rdparty/libpng/Y2KINFO
+++ b/src/3rdparty/libpng/Y2KINFO
@@ -1,13 +1,13 @@
Y2K compliance in libpng:
=========================
- May 8, 2008
+ September 10, 2009
Since the PNG Development group is an ad-hoc body, we can't make
an official declaration.
This is your unofficial assurance that libpng from version 0.71 and
- upward through 1.2.29 are Y2K compliant. It is my belief that earlier
+ upward through 1.2.40 are Y2K compliant. It is my belief that earlier
versions were also Y2K compliant.
Libpng only has three year fields. One is a 2-byte unsigned integer
diff --git a/src/3rdparty/libpng/configure b/src/3rdparty/libpng/configure
index 56b2452..4871efc 100755
--- a/src/3rdparty/libpng/configure
+++ b/src/3rdparty/libpng/configure
@@ -1,13 +1,13 @@
#!/bin/sh
echo "
There is no \"configure\" script in this distribution of
- libpng-1.2.29.
+ libpng-1.2.40.
Instead, please copy the appropriate makefile for your system from the
\"scripts\" directory. Read the INSTALL file for more details.
Update, July 2004: you can get a \"configure\" based distribution
from the libpng distribution sites. Download the file
- libpng-1.2.29.tar.gz, libpng-1.2.29.tar.lzma, or libpng-1.2.29.tar.bz2
+ libpng-1.2.40.tar.gz, libpng-1.2.40.tar.lzma, or libpng-1.2.40.tar.bz2
"
diff --git a/src/3rdparty/libpng/example.c b/src/3rdparty/libpng/example.c
index 0815873..dcf38de 100644
--- a/src/3rdparty/libpng/example.c
+++ b/src/3rdparty/libpng/example.c
@@ -2,9 +2,9 @@
#if 0 /* in case someone actually tries to compile this */
/* example.c - an example of using libpng
- * Last changed in libpng 1.2.1 December 7, 2001.
+ * Last changed in libpng 1.2.37 [June 4, 2009]
* This file has been placed in the public domain by the authors.
- * Maintained 1998-2007 Glenn Randers-Pehrson
+ * Maintained 1998-2009 Glenn Randers-Pehrson
* Maintained 1996, 1997 Andreas Dilger)
* Written 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
*/
@@ -91,14 +91,15 @@ void read_png(char *file_name) /* We need to open the file */
if ((fp = fopen(file_name, "rb")) == NULL)
return (ERROR);
+
#else no_open_file /* prototype 2 */
-void read_png(FILE *fp, unsigned int sig_read) /* file is already open */
+void read_png(FILE *fp, unsigned int sig_read) /* File is already open */
{
png_structp png_ptr;
png_infop info_ptr;
png_uint_32 width, height;
int bit_depth, color_type, interlace_type;
-#endif no_open_file /* only use one prototype! */
+#endif no_open_file /* Only use one prototype! */
/* Create and initialize the png_struct with the desired error handler
* functions. If you want to use the default stderr and longjump method,
@@ -164,6 +165,7 @@ void read_png(FILE *fp, unsigned int sig_read) /* file is already open */
* pixels) into the info structure with this call:
*/
png_read_png(png_ptr, info_ptr, png_transforms, png_voidp_NULL);
+
#else
/* OK, you're doing it the hard way, with the lower-level functions */
@@ -175,13 +177,13 @@ void read_png(FILE *fp, unsigned int sig_read) /* file is already open */
png_get_IHDR(png_ptr, info_ptr, &width, &height, &bit_depth, &color_type,
&interlace_type, int_p_NULL, int_p_NULL);
-/* Set up the data transformations you want. Note that these are all
- * optional. Only call them if you want/need them. Many of the
- * transformations only work on specific types of images, and many
- * are mutually exclusive.
- */
+ /* Set up the data transformations you want. Note that these are all
+ * optional. Only call them if you want/need them. Many of the
+ * transformations only work on specific types of images, and many
+ * are mutually exclusive.
+ */
- /* tell libpng to strip 16 bit/color files down to 8 bits/color */
+ /* Tell libpng to strip 16 bit/color files down to 8 bits/color */
png_set_strip_16(png_ptr);
/* Strip alpha bytes from the input data without combining with the
@@ -204,7 +206,7 @@ void read_png(FILE *fp, unsigned int sig_read) /* file is already open */
/* Expand grayscale images to the full 8 bits from 1, 2, or 4 bits/pixel */
if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8)
- png_set_gray_1_2_4_to_8(png_ptr);
+ png_set_expand_gray_1_2_4_to_8(png_ptr);
/* Expand paletted or RGB images with transparency to full alpha channels
* so the data will be available as RGBA quartets.
@@ -228,10 +230,11 @@ void read_png(FILE *fp, unsigned int sig_read) /* file is already open */
png_set_background(png_ptr, &my_background,
PNG_BACKGROUND_GAMMA_SCREEN, 0, 1.0);
- /* Some suggestions as to how to get a screen gamma value */
-
- /* Note that screen gamma is the display_exponent, which includes
- * the CRT_exponent and any correction for viewing conditions */
+ /* Some suggestions as to how to get a screen gamma value
+ *
+ * Note that screen gamma is the display_exponent, which includes
+ * the CRT_exponent and any correction for viewing conditions
+ */
if (/* We have a user-defined screen gamma value */)
{
screen_gamma = user-defined screen_gamma;
@@ -244,7 +247,7 @@ void read_png(FILE *fp, unsigned int sig_read) /* file is already open */
/* If we don't have another value */
else
{
- screen_gamma = 2.2; /* A good guess for a PC monitors in a dimly
+ screen_gamma = 2.2; /* A good guess for a PC monitor in a dimly
lit room */
screen_gamma = 1.7 or 1.0; /* A good guess for Mac systems */
}
@@ -277,7 +280,7 @@ void read_png(FILE *fp, unsigned int sig_read) /* file is already open */
png_colorp palette;
/* This reduces the image to the application supplied palette */
- if (/* we have our own palette */)
+ if (/* We have our own palette */)
{
/* An array of colors to which the image should be dithered */
png_color std_color_cube[MAX_SCREEN_COLORS];
@@ -297,7 +300,7 @@ void read_png(FILE *fp, unsigned int sig_read) /* file is already open */
}
}
- /* invert monochrome files to have 0 as white and 1 as black */
+ /* Invert monochrome files to have 0 as white and 1 as black */
png_set_invert_mono(png_ptr);
/* If you want to shift the pixel values from the range [0,255] or
@@ -306,20 +309,20 @@ void read_png(FILE *fp, unsigned int sig_read) /* file is already open */
*/
if (png_get_valid(png_ptr, info_ptr, PNG_INFO_sBIT))
{
- png_color_8p sig_bit;
+ png_color_8p sig_bit_p;
- png_get_sBIT(png_ptr, info_ptr, &sig_bit);
- png_set_shift(png_ptr, sig_bit);
+ png_get_sBIT(png_ptr, info_ptr, &sig_bit_p);
+ png_set_shift(png_ptr, sig_bit_p);
}
- /* flip the RGB pixels to BGR (or RGBA to BGRA) */
+ /* Flip the RGB pixels to BGR (or RGBA to BGRA) */
if (color_type & PNG_COLOR_MASK_COLOR)
png_set_bgr(png_ptr);
- /* swap the RGBA or GA data to ARGB or AG (or BGRA to ABGR) */
+ /* Swap the RGBA or GA data to ARGB or AG (or BGRA to ABGR) */
png_set_swap_alpha(png_ptr);
- /* swap bytes of 16 bit files to least significant byte first */
+ /* Swap bytes of 16 bit files to least significant byte first */
png_set_swap(png_ptr);
/* Add filler (or alpha) byte (before/after each RGB triplet) */
@@ -342,11 +345,13 @@ void read_png(FILE *fp, unsigned int sig_read) /* file is already open */
/* The easiest way to read the image: */
png_bytep row_pointers[height];
+ /* Clear the pointer array */
+ for (row = 0; row < height; row++)
+ row_pointers[row] = NULL;
+
for (row = 0; row < height; row++)
- {
row_pointers[row] = png_malloc(png_ptr, png_get_rowbytes(png_ptr,
info_ptr));
- }
/* Now it's time to read the image. One of these methods is REQUIRED */
#ifdef entire /* Read the entire image in one go */
@@ -372,32 +377,31 @@ void read_png(FILE *fp, unsigned int sig_read) /* file is already open */
#else no_sparkle /* Read the image using the "rectangle" effect */
png_read_rows(png_ptr, png_bytepp_NULL, &row_pointers[y],
number_of_rows);
-#endif no_sparkle /* use only one of these two methods */
+#endif no_sparkle /* Use only one of these two methods */
}
- /* if you want to display the image after every pass, do
- so here */
-#endif no_single /* use only one of these two methods */
+ /* If you want to display the image after every pass, do so here */
+#endif no_single /* Use only one of these two methods */
}
-#endif no_entire /* use only one of these two methods */
+#endif no_entire /* Use only one of these two methods */
- /* read rest of file, and get additional chunks in info_ptr - REQUIRED */
+ /* Read rest of file, and get additional chunks in info_ptr - REQUIRED */
png_read_end(png_ptr, info_ptr);
#endif hilevel
/* At this point you have read the entire image */
- /* clean up after the read, and free any memory allocated - REQUIRED */
+ /* Clean up after the read, and free any memory allocated - REQUIRED */
png_destroy_read_struct(&png_ptr, &info_ptr, png_infopp_NULL);
- /* close the file */
+ /* Close the file */
fclose(fp);
- /* that's it */
+ /* That's it */
return (OK);
}
-/* progressively read a file */
+/* Progressively read a file */
int
initialize_png_reader(png_structp *png_ptr, png_infop *info_ptr)
@@ -462,7 +466,7 @@ process_data(png_structp *png_ptr, png_infop *info_ptr,
/* This one's new also. Simply give it chunks of data as
* they arrive from the data stream (in order, of course).
- * On Segmented machines, don't give it any more than 64K.
+ * On segmented machines, don't give it any more than 64K.
* The library seems to run fine with sizes of 4K, although
* you can give it much less if necessary (I assume you can
* give it chunks of 1 byte, but I haven't tried with less
@@ -476,36 +480,37 @@ process_data(png_structp *png_ptr, png_infop *info_ptr,
info_callback(png_structp png_ptr, png_infop info)
{
-/* do any setup here, including setting any of the transformations
- * mentioned in the Reading PNG files section. For now, you _must_
- * call either png_start_read_image() or png_read_update_info()
- * after all the transformations are set (even if you don't set
- * any). You may start getting rows before png_process_data()
- * returns, so this is your last chance to prepare for that.
- */
+ /* Do any setup here, including setting any of the transformations
+ * mentioned in the Reading PNG files section. For now, you _must_
+ * call either png_start_read_image() or png_read_update_info()
+ * after all the transformations are set (even if you don't set
+ * any). You may start getting rows before png_process_data()
+ * returns, so this is your last chance to prepare for that.
+ */
}
row_callback(png_structp png_ptr, png_bytep new_row,
png_uint_32 row_num, int pass)
{
-/*
- * This function is called for every row in the image. If the
- * image is interlaced, and you turned on the interlace handler,
- * this function will be called for every row in every pass.
- *
- * In this function you will receive a pointer to new row data from
- * libpng called new_row that is to replace a corresponding row (of
- * the same data format) in a buffer allocated by your application.
- *
- * The new row data pointer new_row may be NULL, indicating there is
- * no new data to be replaced (in cases of interlace loading).
- *
- * If new_row is not NULL then you need to call
- * png_progressive_combine_row() to replace the corresponding row as
- * shown below:
- */
+ /*
+ * This function is called for every row in the image. If the
+ * image is interlaced, and you turned on the interlace handler,
+ * this function will be called for every row in every pass.
+ *
+ * In this function you will receive a pointer to new row data from
+ * libpng called new_row that is to replace a corresponding row (of
+ * the same data format) in a buffer allocated by your application.
+ *
+ * The new row data pointer "new_row" may be NULL, indicating there is
+ * no new data to be replaced (in cases of interlace loading).
+ *
+ * If new_row is not NULL then you need to call
+ * png_progressive_combine_row() to replace the corresponding row as
+ * shown below:
+ */
+
/* Check if row_num is in bounds. */
- if((row_num >= 0) && (row_num < height))
+ if ((row_num >= 0) && (row_num < height))
{
/* Get pointer to corresponding row in our
* PNG read buffer.
@@ -515,47 +520,47 @@ row_callback(png_structp png_ptr, png_bytep new_row,
/* If both rows are allocated then copy the new row
* data to the corresponding row data.
*/
- if((old_row != NULL) && (new_row != NULL))
+ if ((old_row != NULL) && (new_row != NULL))
png_progressive_combine_row(png_ptr, old_row, new_row);
}
-/*
- * The rows and passes are called in order, so you don't really
- * need the row_num and pass, but I'm supplying them because it
- * may make your life easier.
- *
- * For the non-NULL rows of interlaced images, you must call
- * png_progressive_combine_row() passing in the new row and the
- * old row, as demonstrated above. You can call this function for
- * NULL rows (it will just return) and for non-interlaced images
- * (it just does the png_memcpy for you) if it will make the code
- * easier. Thus, you can just do this for all cases:
- */
+ /*
+ * The rows and passes are called in order, so you don't really
+ * need the row_num and pass, but I'm supplying them because it
+ * may make your life easier.
+ *
+ * For the non-NULL rows of interlaced images, you must call
+ * png_progressive_combine_row() passing in the new row and the
+ * old row, as demonstrated above. You can call this function for
+ * NULL rows (it will just return) and for non-interlaced images
+ * (it just does the png_memcpy for you) if it will make the code
+ * easier. Thus, you can just do this for all cases:
+ */
png_progressive_combine_row(png_ptr, old_row, new_row);
-/* where old_row is what was displayed for previous rows. Note
- * that the first pass (pass == 0 really) will completely cover
- * the old row, so the rows do not have to be initialized. After
- * the first pass (and only for interlaced images), you will have
- * to pass the current row as new_row, and the function will combine
- * the old row and the new row.
- */
+ /* where old_row is what was displayed for previous rows. Note
+ * that the first pass (pass == 0 really) will completely cover
+ * the old row, so the rows do not have to be initialized. After
+ * the first pass (and only for interlaced images), you will have
+ * to pass the current row as new_row, and the function will combine
+ * the old row and the new row.
+ */
}
end_callback(png_structp png_ptr, png_infop info)
{
-/* this function is called when the whole image has been read,
- * including any chunks after the image (up to and including
- * the IEND). You will usually have the same info chunk as you
- * had in the header, although some data may have been added
- * to the comments and time fields.
- *
- * Most people won't do much here, perhaps setting a flag that
- * marks the image as finished.
- */
+ /* This function is called when the whole image has been read,
+ * including any chunks after the image (up to and including
+ * the IEND). You will usually have the same info chunk as you
+ * had in the header, although some data may have been added
+ * to the comments and time fields.
+ *
+ * Most people won't do much here, perhaps setting a flag that
+ * marks the image as finished.
+ */
}
-/* write a png file */
+/* Write a png file */
void write_png(char *file_name /* , ... other image information ... */)
{
FILE *fp;
@@ -563,7 +568,7 @@ void write_png(char *file_name /* , ... other image information ... */)
png_infop info_ptr;
png_colorp palette;
- /* open the file */
+ /* Open the file */
fp = fopen(file_name, "wb");
if (fp == NULL)
return (ERROR);
@@ -597,30 +602,34 @@ void write_png(char *file_name /* , ... other image information ... */)
*/
if (setjmp(png_jmpbuf(png_ptr)))
{
- /* If we get here, we had a problem reading the file */
+ /* If we get here, we had a problem writing the file */
fclose(fp);
png_destroy_write_struct(&png_ptr, &info_ptr);
return (ERROR);
}
/* One of the following I/O initialization functions is REQUIRED */
+
#ifdef streams /* I/O initialization method 1 */
- /* set up the output control if you are using standard C streams */
+ /* Set up the output control if you are using standard C streams */
png_init_io(png_ptr, fp);
+
#else no_streams /* I/O initialization method 2 */
- /* If you are using replacement read functions, instead of calling
- * png_init_io() here you would call */
+ /* If you are using replacement write functions, instead of calling
+ * png_init_io() here you would call
+ */
png_set_write_fn(png_ptr, (void *)user_io_ptr, user_write_fn,
user_IO_flush_function);
/* where user_io_ptr is a structure you want available to the callbacks */
-#endif no_streams /* only use one initialization method */
+#endif no_streams /* Only use one initialization method */
#ifdef hilevel
/* This is the easy way. Use it if you already have all the
- * image info living info in the structure. You could "|" many
+ * image info living in the structure. You could "|" many
* PNG_TRANSFORM flags into the png_transforms integer here.
*/
png_write_png(png_ptr, info_ptr, png_transforms, png_voidp_NULL);
+
#else
/* This is the hard way */
@@ -635,25 +644,27 @@ void write_png(char *file_name /* , ... other image information ... */)
png_set_IHDR(png_ptr, info_ptr, width, height, bit_depth, PNG_COLOR_TYPE_???,
PNG_INTERLACE_????, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
- /* set the palette if there is one. REQUIRED for indexed-color images */
+ /* Set the palette if there is one. REQUIRED for indexed-color images */
palette = (png_colorp)png_malloc(png_ptr, PNG_MAX_PALETTE_LENGTH
- * png_sizeof (png_color));
- /* ... set palette colors ... */
+ * png_sizeof(png_color));
+ /* ... Set palette colors ... */
png_set_PLTE(png_ptr, info_ptr, palette, PNG_MAX_PALETTE_LENGTH);
/* You must not free palette here, because png_set_PLTE only makes a link to
- the palette that you malloced. Wait until you are about to destroy
- the png structure. */
+ * the palette that you malloced. Wait until you are about to destroy
+ * the png structure.
+ */
- /* optional significant bit chunk */
- /* if we are dealing with a grayscale image then */
+ /* Optional significant bit (sBIT) chunk */
+ png_color_8 sig_bit;
+ /* If we are dealing with a grayscale image then */
sig_bit.gray = true_bit_depth;
- /* otherwise, if we are dealing with a color image then */
+ /* Otherwise, if we are dealing with a color image then */
sig_bit.red = true_red_bit_depth;
sig_bit.green = true_green_bit_depth;
sig_bit.blue = true_blue_bit_depth;
- /* if the image has an alpha channel then */
+ /* If the image has an alpha channel then */
sig_bit.alpha = true_alpha_bit_depth;
- png_set_sBIT(png_ptr, info_ptr, sig_bit);
+ png_set_sBIT(png_ptr, info_ptr, &sig_bit);
/* Optional gamma chunk is strongly suggested if you have any guess
@@ -678,9 +689,12 @@ void write_png(char *file_name /* , ... other image information ... */)
#endif
png_set_text(png_ptr, info_ptr, text_ptr, 3);
- /* other optional chunks like cHRM, bKGD, tRNS, tIME, oFFs, pHYs, */
- /* note that if sRGB is present the gAMA and cHRM chunks must be ignored
- * on read and must be written in accordance with the sRGB profile */
+ /* Other optional chunks like cHRM, bKGD, tRNS, tIME, oFFs, pHYs */
+
+ /* Note that if sRGB is present the gAMA and cHRM chunks must be ignored
+ * on read and, if your application chooses to write them, they must
+ * be written in accordance with the sRGB profile
+ */
/* Write the file header information. REQUIRED */
png_write_info(png_ptr, info_ptr);
@@ -692,7 +706,7 @@ void write_png(char *file_name /* , ... other image information ... */)
* write_my_chunk();
* png_write_info(png_ptr, info_ptr);
*
- * However, given the level of known- and unknown-chunk support in 1.1.0
+ * However, given the level of known- and unknown-chunk support in 1.2.0
* and up, this should no longer be necessary.
*/
@@ -702,11 +716,11 @@ void write_png(char *file_name /* , ... other image information ... */)
* at the end.
*/
- /* set up the transformations you want. Note that these are
+ /* Set up the transformations you want. Note that these are
* all optional. Only call them if you want them.
*/
- /* invert monochrome pixels */
+ /* Invert monochrome pixels */
png_set_invert_mono(png_ptr);
/* Shift the pixels up to a legal bit depth and fill in
@@ -714,10 +728,10 @@ void write_png(char *file_name /* , ... other image information ... */)
*/
png_set_shift(png_ptr, &sig_bit);
- /* pack pixels into bytes */
+ /* Pack pixels into bytes */
png_set_packing(png_ptr);
- /* swap location of alpha bytes from ARGB to RGBA */
+ /* Swap location of alpha bytes from ARGB to RGBA */
png_set_swap_alpha(png_ptr);
/* Get rid of filler (OR ALPHA) bytes, pack XRGB/RGBX/ARGB/RGBA into
@@ -725,16 +739,16 @@ void write_png(char *file_name /* , ... other image information ... */)
*/
png_set_filler(png_ptr, 0, PNG_FILLER_BEFORE);
- /* flip BGR pixels to RGB */
+ /* Flip BGR pixels to RGB */
png_set_bgr(png_ptr);
- /* swap bytes of 16-bit files to most significant byte first */
+ /* Swap bytes of 16-bit files to most significant byte first */
png_set_swap(png_ptr);
- /* swap bits of 1, 2, 4 bit packed pixel formats */
+ /* Swap bits of 1, 2, 4 bit packed pixel formats */
png_set_packswap(png_ptr);
- /* turn on interlace handling if you are not using png_write_image() */
+ /* Turn on interlace handling if you are not using png_write_image() */
if (interlacing)
number_passes = png_set_interlace_handling(png_ptr);
else
@@ -755,12 +769,14 @@ void write_png(char *file_name /* , ... other image information ... */)
row_pointers[k] = image + k*width*bytes_per_pixel;
/* One of the following output methods is REQUIRED */
-#ifdef entire /* write out the entire image data in one call */
+
+#ifdef entire /* Write out the entire image data in one call */
png_write_image(png_ptr, row_pointers);
- /* the other way to write the image - deal with interlacing */
+ /* The other way to write the image - deal with interlacing */
+
+#else no_entire /* Write out the image data by one or more scanlines */
-#else no_entire /* write out the image data by one or more scanlines */
/* The number of passes is either 1 for non-interlaced images,
* or 7 for interlaced images.
*/
@@ -771,14 +787,12 @@ void write_png(char *file_name /* , ... other image information ... */)
/* If you are only writing one row at a time, this works */
for (y = 0; y < height; y++)
- {
png_write_rows(png_ptr, &row_pointers[y], 1);
- }
}
-#endif no_entire /* use only one output method */
+#endif no_entire /* Use only one output method */
/* You can write optional chunks like tEXt, zTXt, and tIME at the end
- * as well. Shouldn't be necessary in 1.1.0 and up as all the public
+ * as well. Shouldn't be necessary in 1.2.0 and up as all the public
* chunks are supported and you can use png_set_unknown_chunks() to
* register unknown chunks into the info structure to be written out.
*/
@@ -788,26 +802,33 @@ void write_png(char *file_name /* , ... other image information ... */)
#endif hilevel
/* If you png_malloced a palette, free it here (don't free info_ptr->palette,
- as recommended in versions 1.0.5m and earlier of this example; if
- libpng mallocs info_ptr->palette, libpng will free it). If you
- allocated it with malloc() instead of png_malloc(), use free() instead
- of png_free(). */
+ * as recommended in versions 1.0.5m and earlier of this example; if
+ * libpng mallocs info_ptr->palette, libpng will free it). If you
+ * allocated it with malloc() instead of png_malloc(), use free() instead
+ * of png_free().
+ */
png_free(png_ptr, palette);
- palette=NULL;
+ palette = NULL;
/* Similarly, if you png_malloced any data that you passed in with
- png_set_something(), such as a hist or trans array, free it here,
- when you can be sure that libpng is through with it. */
+ * png_set_something(), such as a hist or trans array, free it here,
+ * when you can be sure that libpng is through with it.
+ */
png_free(png_ptr, trans);
- trans=NULL;
+ trans = NULL;
+ /* Whenever you use png_free() it is a good idea to set the pointer to
+ * NULL in case your application inadvertently tries to png_free() it
+ * again. When png_free() sees a NULL it returns without action, thus
+ * avoiding the double-free security problem.
+ */
- /* clean up after the write, and free any memory allocated */
+ /* Clean up after the write, and free any memory allocated */
png_destroy_write_struct(&png_ptr, &info_ptr);
- /* close the file */
+ /* Close the file */
fclose(fp);
- /* that's it */
+ /* That's it */
return (OK);
}
diff --git a/src/3rdparty/libpng/libpng-1.2.29.txt b/src/3rdparty/libpng/libpng-1.2.40.txt
index 91b9806..019c886 100644
--- a/src/3rdparty/libpng/libpng-1.2.29.txt
+++ b/src/3rdparty/libpng/libpng-1.2.40.txt
@@ -1,17 +1,19 @@
libpng.txt - A description on how to use and modify libpng
- libpng version 1.2.29 - May 8, 2008
+ libpng version 1.2.40 - September 10, 2009
Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net>
- Copyright (c) 1998-2008 Glenn Randers-Pehrson
- For conditions of distribution and use, see copyright
- notice in png.h.
+ Copyright (c) 1998-2009 Glenn Randers-Pehrson
+
+ This document is released under the libpng license.
+ For conditions of distribution and use, see the disclaimer
+ and license in png.h
Based on:
- libpng versions 0.97, January 1998, through 1.2.29 - May 8, 2008
+ libpng versions 0.97, January 1998, through 1.2.40 - September 10, 2009
Updated and distributed by Glenn Randers-Pehrson
- Copyright (c) 1998-2008 Glenn Randers-Pehrson
+ Copyright (c) 1998-2009 Glenn Randers-Pehrson
libpng 1.0 beta 6 version 0.96 May 28, 1997
Updated and distributed by Andreas Dilger
@@ -141,9 +143,10 @@ so if it doesn't work, you don't have much to undo. Of course, you
will also want to insure that you are, in fact, dealing with a PNG
file. Libpng provides a simple check to see if a file is a PNG file.
To use it, pass in the first 1 to 8 bytes of the file to the function
-png_sig_cmp(), and it will return 0 if the bytes match the corresponding
-bytes of the PNG signature, or nonzero otherwise. Of course, the more bytes
-you pass in, the greater the accuracy of the prediction.
+png_sig_cmp(), and it will return 0 (false) if the bytes match the
+corresponding bytes of the PNG signature, or nonzero (true) otherwise.
+Of course, the more bytes you pass in, the greater the accuracy of the
+prediction.
If you are intending to keep the file pointer open for use in libpng,
you must ensure you don't read more than 8 bytes from the beginning
@@ -320,35 +323,14 @@ To inform libpng about your function, use
png_set_read_status_fn(png_ptr, read_row_callback);
-Width and height limits
-
-The PNG specification allows the width and height of an image to be as
-large as 2^31-1 (0x7fffffff), or about 2.147 billion rows and columns.
-Since very few applications really need to process such large images,
-we have imposed an arbitrary 1-million limit on rows and columns.
-Larger images will be rejected immediately with a png_error() call. If
-you wish to override this limit, you can use
-
- png_set_user_limits(png_ptr, width_max, height_max);
-
-to set your own limits, or use width_max = height_max = 0x7fffffffL
-to allow all valid dimensions (libpng may reject some very large images
-anyway because of potential buffer overflow conditions).
-
-You should put this statement after you create the PNG structure and
-before calling png_read_info(), png_read_png(), or png_process_data().
-If you need to retrieve the limits that are being applied, use
-
- width_max = png_get_user_width_max(png_ptr);
- height_max = png_get_user_height_max(png_ptr);
-
Unknown-chunk handling
Now you get to set the way the library processes unknown chunks in the
input PNG stream. Both known and unknown chunks will be read. Normal
behavior is that known chunks will be parsed into information in
-various info_ptr members while unknown chunks will be discarded. To change
-this, you can call:
+various info_ptr members while unknown chunks will be discarded. This
+behavior can be wasteful if your application will never use some known
+chunk types. To change this, you can call:
png_set_keep_unknown_chunks(png_ptr, keep,
chunk_list, num_chunks);
@@ -406,6 +388,27 @@ callback function:
(int)sizeof(unused_chunks)/5);
#endif
+User limits
+
+The PNG specification allows the width and height of an image to be as
+large as 2^31-1 (0x7fffffff), or about 2.147 billion rows and columns.
+Since very few applications really need to process such large images,
+we have imposed an arbitrary 1-million limit on rows and columns.
+Larger images will be rejected immediately with a png_error() call. If
+you wish to override this limit, you can use
+
+ png_set_user_limits(png_ptr, width_max, height_max);
+
+to set your own limits, or use width_max = height_max = 0x7fffffffL
+to allow all valid dimensions (libpng may reject some very large images
+anyway because of potential buffer overflow conditions).
+
+You should put this statement after you create the PNG structure and
+before calling png_read_info(), png_read_png(), or png_process_data().
+If you need to retrieve the limits that are being applied, use
+
+ width_max = png_get_user_width_max(png_ptr);
+ height_max = png_get_user_height_max(png_ptr);
The high-level read interface
@@ -472,6 +475,8 @@ row_pointers prior to calling png_read_png() with
row_pointers = png_malloc(png_ptr,
height*png_sizeof(png_bytep));
for (int i=0; i<height, i++)
+ row_pointers[i]=NULL; /* security precaution */
+ for (int i=0; i<height, i++)
row_pointers[i]=png_malloc(png_ptr,
width*pixel_size);
png_set_rows(png_ptr, info_ptr, &row_pointers);
@@ -847,9 +852,6 @@ things.
As of libpng version 1.2.9, png_set_expand_gray_1_2_4_to_8() was
added. It expands the sample depth without changing tRNS to alpha.
-At the same time, png_set_gray_1_2_4_to_8() was deprecated, and it
-will be removed from a future version.
-
PNG can have files with 16 bits per channel. If you only can handle
8 bits per channel, this will strip the pixels down to 8 bit.
@@ -1701,7 +1703,7 @@ types.
PNG_FILTER_NONE | PNG_FILTER_VALUE_NONE |
PNG_FILTER_SUB | PNG_FILTER_VALUE_SUB |
PNG_FILTER_UP | PNG_FILTER_VALUE_UP |
- PNG_FILTER_AVE | PNG_FILTER_VALUE_AVE |
+ PNG_FILTER_AVG | PNG_FILTER_VALUE_AVG |
PNG_FILTER_PAETH | PNG_FILTER_VALUE_PAETH|
PNG_ALL_FILTERS);
@@ -1791,10 +1793,14 @@ Some of the more important parts of the png_info are:
PNG_INTRAPIXEL_DIFFERENCING)
If you call png_set_IHDR(), the call must appear before any of the
-other png_set_*() functions, which might require access to some of
+other png_set_*() functions, because they might require access to some of
the IHDR settings. The remaining png_set_*() functions can be called
in any order.
+If you wish, you can reset the compression_type, interlace_type, or
+filter_method later by calling png_set_IHDR() again; if you do this, the
+width, height, bit_depth, and color_type must be the same in each call.
+
png_set_PLTE(png_ptr, info_ptr, palette,
num_palette);
palette - the palette for the file
@@ -1856,8 +1862,9 @@ in any order.
trans_values);
trans - array of transparent entries for
palette (PNG_INFO_tRNS)
- trans_values - graylevel or color sample values of
- the single transparent color for
+ trans_values - graylevel or color sample values
+ (in order red, green, blue) of the
+ single transparent color for
non-paletted images (PNG_INFO_tRNS)
num_trans - number of transparent entries
(PNG_INFO_tRNS)
@@ -2066,7 +2073,12 @@ transformations are permitted, enabled by the following masks.
PNG_TRANSFORM_INVERT_ALPHA Change alpha from opacity
to transparency
PNG_TRANSFORM_SWAP_ENDIAN Byte-swap 16-bit samples
- PNG_TRANSFORM_STRIP_FILLER Strip out filler bytes.
+ PNG_TRANSFORM_STRIP_FILLER Strip out filler
+ bytes (deprecated).
+ PNG_TRANSFORM_STRIP_FILLER_BEFORE Strip out leading
+ filler bytes
+ PNG_TRANSFORM_STRIP_FILLER_AFTER Strip out trailing
+ filler bytes
If you have valid image data in the info structure (you can use
png_set_rows() to put image data in the info structure), simply do this:
@@ -2473,9 +2485,15 @@ The replacement I/O functions must have prototypes as follows:
png_bytep data, png_size_t length);
void user_flush_data(png_structp png_ptr);
+The user_read_data() function is responsible for detecting and
+handling end-of-data errors.
+
Supplying NULL for the read, write, or flush functions sets them back
-to using the default C stream functions. It is an error to read from
-a write stream, and vice versa.
+to using the default C stream functions, which expect the io_ptr to
+point to a standard *FILE structure. It is probably a mistake
+to use NULL for one of write_data_fn and output_flush_fn but not both
+of them, unless you have built libpng with PNG_NO_WRITE_FLUSH defined.
+It is an error to read from a write stream, and vice versa.
Error handling in libpng is done through png_error() and png_warning().
Errors handled through png_error() are fatal, meaning that png_error()
@@ -2580,11 +2598,12 @@ you may also have to change the memory allocators (png_malloc, etc.).
Configuring for compiler xxx:
-All includes for libpng are in pngconf.h. If you need to add/change/delete
-an include, this is the place to do it. The includes that are not
-needed outside libpng are protected by the PNG_INTERNAL definition,
-which is only defined for those routines inside libpng itself. The
-files in libpng proper only include png.h, which includes pngconf.h.
+All includes for libpng are in pngconf.h. If you need to add, change
+or delete an include, this is the place to do it.
+The includes that are not needed outside libpng are protected by the
+PNG_INTERNAL definition, which is only defined for those routines inside
+libpng itself. The files in libpng proper only include png.h, which
+includes pngconf.h.
Configuring zlib:
@@ -2653,7 +2672,7 @@ currently does not allocate the filter buffers until png_write_row()
is called for the first time.)
filters = PNG_FILTER_NONE | PNG_FILTER_SUB
- PNG_FILTER_UP | PNG_FILTER_AVE |
+ PNG_FILTER_UP | PNG_FILTER_AVG |
PNG_FILTER_PAETH | PNG_ALL_FILTERS;
png_set_filter(png_ptr, PNG_FILTER_TYPE_BASE,
@@ -2775,7 +2794,7 @@ When PNG_DEBUG = 1, the macros are defined, but only png_debug statements
having level = 0 will be printed. There aren't any such statements in
this version of libpng, but if you insert some they will be printed.
-VII. MNG support
+VI. MNG support
The MNG specification (available at http://www.libpng.org/pub/mng) allows
certain extensions to PNG for PNG images that are embedded in MNG datastreams.
@@ -2800,7 +2819,7 @@ or any other MNG chunks; your application must provide its own support for
them. You may wish to consider using libmng (available at
http://www.libmng.com) instead.
-VIII. Changes to Libpng from version 0.88
+VII. Changes to Libpng from version 0.88
It should be noted that versions of libpng later than 0.96 are not
distributed by the original libpng author, Guy Schalnat, nor by
@@ -2849,15 +2868,202 @@ application:
png_uint_32 application_vn = PNG_LIBPNG_VER;
-IX. Y2K Compliance in libpng
+VIII. Changes to Libpng from version 1.0.x to 1.2.x
+
+Support for user memory management was enabled by default. To
+accomplish this, the functions png_create_read_struct_2(),
+png_create_write_struct_2(), png_set_mem_fn(), png_get_mem_ptr(),
+png_malloc_default(), and png_free_default() were added.
+
+Support for certain MNG features was enabled.
+
+Support for numbered error messages was added. However, we never got
+around to actually numbering the error messages. The function
+png_set_strip_error_numbers() was added (Note: the prototype for this
+function was inadvertently removed from png.h in PNG_NO_ASSEMBLER_CODE
+builds of libpng-1.2.15. It was restored in libpng-1.2.36).
+
+The png_malloc_warn() function was added at libpng-1.2.3. This issues
+a png_warning and returns NULL instead of aborting when it fails to
+acquire the requested memory allocation.
+
+Support for setting user limits on image width and height was enabled
+by default. The functions png_set_user_limits(), png_get_user_width_max(),
+and png_get_user_height_max() were added at libpng-1.2.6.
+
+The png_set_add_alpha() function was added at libpng-1.2.7.
+
+The function png_set_expand_gray_1_2_4_to_8() was added at libpng-1.2.9.
+Unlike png_set_gray_1_2_4_to_8(), the new function does not expand the
+tRNS chunk to alpha. The png_set_gray_1_2_4_to_8() function is
+deprecated.
+
+A number of macro definitions in support of runtime selection of
+assembler code features (especially Intel MMX code support) were
+added at libpng-1.2.0:
+
+ PNG_ASM_FLAG_MMX_SUPPORT_COMPILED
+ PNG_ASM_FLAG_MMX_SUPPORT_IN_CPU
+ PNG_ASM_FLAG_MMX_READ_COMBINE_ROW
+ PNG_ASM_FLAG_MMX_READ_INTERLACE
+ PNG_ASM_FLAG_MMX_READ_FILTER_SUB
+ PNG_ASM_FLAG_MMX_READ_FILTER_UP
+ PNG_ASM_FLAG_MMX_READ_FILTER_AVG
+ PNG_ASM_FLAG_MMX_READ_FILTER_PAETH
+ PNG_ASM_FLAGS_INITIALIZED
+ PNG_MMX_READ_FLAGS
+ PNG_MMX_FLAGS
+ PNG_MMX_WRITE_FLAGS
+ PNG_MMX_FLAGS
+
+We added the following functions in support of runtime
+selection of assembler code features:
+
+ png_get_mmx_flagmask()
+ png_set_mmx_thresholds()
+ png_get_asm_flags()
+ png_get_mmx_bitdepth_threshold()
+ png_get_mmx_rowbytes_threshold()
+ png_set_asm_flags()
+
+We replaced all of these functions with simple stubs in libpng-1.2.20,
+when the Intel assembler code was removed due to a licensing issue.
+
+IX. (Omitted)
+
+X. Detecting libpng
+
+The png_get_io_ptr() function has been present since libpng-0.88, has never
+changed, and is unaffected by conditional compilation macros. It is the
+best choice for use in configure scripts for detecting the presence of any
+libpng version since 0.88. In an autoconf "configure.in" you could use
+
+ AC_CHECK_LIB(png, png_get_io_ptr, ...
+
+XI. Source code repository
+
+Since about February 2009, version 1.2.34, libpng has been under "git" source
+control. The git repository was built from old libpng-x.y.z.tar.gz files
+going back to version 0.70. You can access the git repository (read only)
+at
+
+ git://libpng.git.sourceforge.net/gitroot/libpng
+
+or you can browse it via "gitweb" at
+
+ http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng
+
+Patches can be sent to glennrp at users.sourceforge.net or to
+png-mng-implement at lists.sourceforge.net or you can upload them to
+the libpng bug tracker at
+
+ http://libpng.sourceforge.net
+
+XII. Coding style
+
+Our coding style is similar to the "Allman" style, with curly
+braces on separate lines:
+
+ if (condition)
+ {
+ action;
+ }
+
+ else if (another condition)
+ {
+ another action;
+ }
+
+The braces can be omitted from simple one-line actions:
+
+ if (condition)
+ return (0);
+
+We use 3-space indentation, except for continued statements which
+are usually indented the same as the first line of the statement
+plus four more spaces.
+
+Comments appear with the leading "/*" at the same indentation as
+the statement that follows the comment:
+
+ /* Single-line comment */
+ statement;
+
+ /* Multiple-line
+ * comment
+ */
+ statement;
+
+Very short comments can be placed at the end of the statement
+to which they pertain:
+
+ statement; /* comment */
+
+We don't use C++ style ("//") comments. We have, however,
+used them in the past in some now-abandoned MMX assembler
+code.
+
+Functions and their curly braces are not indented, and
+exported functions are marked with PNGAPI:
+
+ /* This is a public function that is visible to
+ * application programers. It does thus-and-so.
+ */
+ void PNGAPI
+ png_exported_function(png_ptr, png_info, foo)
+ {
+ body;
+ }
+
+The prototypes for all exported functions appear in png.h,
+above the comment that says
+
+ /* Maintainer: Put new public prototypes here ... */
+
+We mark all non-exported functions with "/* PRIVATE */"":
+
+ void /* PRIVATE */
+ png_non_exported_function(png_ptr, png_info, foo)
+ {
+ body;
+ }
+
+The prototypes for non-exported functions (except for those in
+pngtest) appear in
+the PNG_INTERNAL section of png.h
+above the comment that says
+
+ /* Maintainer: Put new private prototypes here ^ and in libpngpf.3 */
+
+The names of all exported functions and variables begin
+with "png_", and all publicly visible C preprocessor
+macros begin with "PNG_".
+
+We put a space after each comma and after each semicolon
+in "for" statments, and we put spaces before and after each
+C binary operator and after "for" or "while". We don't
+put a space between a typecast and the expression being
+cast, nor do we put one between a function name and the
+left parenthesis that follows it:
+
+ for (i = 2; i > 0; --i)
+ x[i] = a(x) + (int)b;
+
+We prefer #ifdef and #ifndef to #if defined() and if !defined()
+when there is only one macro being tested.
+
+Other rules can be inferred by inspecting the libpng
+source.
+
+XIII. Y2K Compliance in libpng
-May 8, 2008
+September 10, 2009
Since the PNG Development group is an ad-hoc body, we can't make
an official declaration.
This is your unofficial assurance that libpng from version 0.71 and
-upward through 1.2.29 are Y2K compliant. It is my belief that earlier
+upward through 1.2.40 are Y2K compliant. It is my belief that earlier
versions were also Y2K compliant.
Libpng only has three year fields. One is a 2-byte unsigned integer that
diff --git a/src/3rdparty/libpng/libpng.3 b/src/3rdparty/libpng/libpng.3
index ef7fc5b..65b3686 100644
--- a/src/3rdparty/libpng/libpng.3
+++ b/src/3rdparty/libpng/libpng.3
@@ -1,404 +1,815 @@
-.TH LIBPNG 3 "May 8, 2008"
+.TH LIBPNG 3 "September 10, 2009"
.SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.2.29
+libpng \- Portable Network Graphics (PNG) Reference Library 1.2.40
.SH SYNOPSIS
-\fB
-#include <png.h>\fP
+\fI\fB
+
+\fB#include <png.h>\fP
+
+\fI\fB
\fBpng_uint_32 png_access_version_number \fI(void\fP\fB);\fP
+\fI\fB
+
\fBint png_check_sig (png_bytep \fP\fIsig\fP\fB, int \fInum\fP\fB);\fP
+\fI\fB
+
\fBvoid png_chunk_error (png_structp \fP\fIpng_ptr\fP\fB, png_const_charp \fIerror\fP\fB);\fP
+\fI\fB
+
\fBvoid png_chunk_warning (png_structp \fP\fIpng_ptr\fP\fB, png_const_charp \fImessage\fP\fB);\fP
+\fI\fB
+
\fBvoid png_convert_from_struct_tm (png_timep \fP\fIptime\fP\fB, struct tm FAR * \fIttime\fP\fB);\fP
+\fI\fB
+
\fBvoid png_convert_from_time_t (png_timep \fP\fIptime\fP\fB, time_t \fIttime\fP\fB);\fP
+\fI\fB
+
\fBpng_charp png_convert_to_rfc1123 (png_structp \fP\fIpng_ptr\fP\fB, png_timep \fIptime\fP\fB);\fP
+\fI\fB
+
\fBpng_infop png_create_info_struct (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_structp png_create_read_struct (png_const_charp \fP\fIuser_png_ver\fP\fB, png_voidp \fP\fIerror_ptr\fP\fB, png_error_ptr \fP\fIerror_fn\fP\fB, png_error_ptr \fIwarn_fn\fP\fB);\fP
+\fI\fB
+
\fBpng_structp png_create_read_struct_2(png_const_charp \fP\fIuser_png_ver\fP\fB, png_voidp \fP\fIerror_ptr\fP\fB, png_error_ptr \fP\fIerror_fn\fP\fB, png_error_ptr \fP\fIwarn_fn\fP\fB, png_voidp \fP\fImem_ptr\fP\fB, png_malloc_ptr \fP\fImalloc_fn\fP\fB, png_free_ptr \fIfree_fn\fP\fB);\fP
+\fI\fB
+
\fBpng_structp png_create_write_struct (png_const_charp \fP\fIuser_png_ver\fP\fB, png_voidp \fP\fIerror_ptr\fP\fB, png_error_ptr \fP\fIerror_fn\fP\fB, png_error_ptr \fIwarn_fn\fP\fB);\fP
+\fI\fB
+
\fBpng_structp png_create_write_struct_2(png_const_charp \fP\fIuser_png_ver\fP\fB, png_voidp \fP\fIerror_ptr\fP\fB, png_error_ptr \fP\fIerror_fn\fP\fB, png_error_ptr \fP\fIwarn_fn\fP\fB, png_voidp \fP\fImem_ptr\fP\fB, png_malloc_ptr \fP\fImalloc_fn\fP\fB, png_free_ptr \fIfree_fn\fP\fB);\fP
+\fI\fB
+
\fBint png_debug(int \fP\fIlevel\fP\fB, png_const_charp \fImessage\fP\fB);\fP
+\fI\fB
+
\fBint png_debug1(int \fP\fIlevel\fP\fB, png_const_charp \fP\fImessage\fP\fB, \fIp1\fP\fB);\fP
+\fI\fB
+
\fBint png_debug2(int \fP\fIlevel\fP\fB, png_const_charp \fP\fImessage\fP\fB, \fP\fIp1\fP\fB, \fIp2\fP\fB);\fP
+\fI\fB
+
\fBvoid png_destroy_info_struct (png_structp \fP\fIpng_ptr\fP\fB, png_infopp \fIinfo_ptr_ptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_destroy_read_struct (png_structpp \fP\fIpng_ptr_ptr\fP\fB, png_infopp \fP\fIinfo_ptr_ptr\fP\fB, png_infopp \fIend_info_ptr_ptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_destroy_write_struct (png_structpp \fP\fIpng_ptr_ptr\fP\fB, png_infopp \fIinfo_ptr_ptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_error (png_structp \fP\fIpng_ptr\fP\fB, png_const_charp \fIerror\fP\fB);\fP
+\fI\fB
+
\fBvoid png_free (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fIptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_free_chunk_list (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_free_default(png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fIptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_free_data (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fInum\fP\fB);\fP
+\fI\fB
+
\fBpng_byte png_get_bit_depth (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_uint_32 png_get_bKGD (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_color_16p \fI*background\fP\fB);\fP
+\fI\fB
+
\fBpng_byte png_get_channels (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_uint_32 png_get_cHRM (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, double \fP\fI*white_x\fP\fB, double \fP\fI*white_y\fP\fB, double \fP\fI*red_x\fP\fB, double \fP\fI*red_y\fP\fB, double \fP\fI*green_x\fP\fB, double \fP\fI*green_y\fP\fB, double \fP\fI*blue_x\fP\fB, double \fI*blue_y\fP\fB);\fP
+\fI\fB
+
\fBpng_uint_32 png_get_cHRM_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fI*white_x\fP\fB, png_uint_32 \fP\fI*white_y\fP\fB, png_uint_32 \fP\fI*red_x\fP\fB, png_uint_32 \fP\fI*red_y\fP\fB, png_uint_32 \fP\fI*green_x\fP\fB, png_uint_32 \fP\fI*green_y\fP\fB, png_uint_32 \fP\fI*blue_x\fP\fB, png_uint_32 \fI*blue_y\fP\fB);\fP
+\fI\fB
+
\fBpng_byte png_get_color_type (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_byte png_get_compression_type (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_byte png_get_copyright (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_voidp png_get_error_ptr (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_byte png_get_filter_type (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_uint_32 png_get_gAMA (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, double \fI*file_gamma\fP\fB);\fP
+\fI\fB
+
\fBpng_uint_32 png_get_gAMA_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fI*int_file_gamma\fP\fB);\fP
+\fI\fB
+
\fBpng_byte png_get_header_ver (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_byte png_get_header_version (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_uint_32 png_get_hIST (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_16p \fI*hist\fP\fB);\fP
+\fI\fB
+
\fBpng_uint_32 png_get_iCCP (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_charpp \fP\fIname\fP\fB, int \fP\fI*compression_type\fP\fB, png_charpp \fP\fIprofile\fP\fB, png_uint_32 \fI*proflen\fP\fB);\fP
+\fI\fB
+
\fBpng_uint_32 png_get_IHDR (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fI*width\fP\fB, png_uint_32 \fP\fI*height\fP\fB, int \fP\fI*bit_depth\fP\fB, int \fP\fI*color_type\fP\fB, int \fP\fI*interlace_type\fP\fB, int \fP\fI*compression_type\fP\fB, int \fI*filter_type\fP\fB);\fP
+\fI\fB
+
\fBpng_uint_32 png_get_image_height (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_uint_32 png_get_image_width (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
-\fB#if !defined(PNG_1_0_X) png_int_32 png_get_int_32 (png_bytep buf); \fI#endif
+\fI\fB
+
+\fB#if \fI!defined(PNG_1_0_X)
+
+\fBpng_int_32 png_get_int_32 (png_bytep \fIbuf\fP\fB);\fP
+
+\fI\fB#endif
+
+\fI\fB
\fBpng_byte png_get_interlace_type (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_voidp png_get_io_ptr (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_byte png_get_libpng_ver (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_voidp png_get_mem_ptr(png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_uint_32 png_get_oFFs (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fI*offset_x\fP\fB, png_uint_32 \fP\fI*offset_y\fP\fB, int \fI*unit_type\fP\fB);\fP
+\fI\fB
+
\fBpng_uint_32 png_get_pCAL (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_charp \fP\fI*purpose\fP\fB, png_int_32 \fP\fI*X0\fP\fB, png_int_32 \fP\fI*X1\fP\fB, int \fP\fI*type\fP\fB, int \fP\fI*nparams\fP\fB, png_charp \fP\fI*units\fP\fB, png_charpp \fI*params\fP\fB);\fP
+\fI\fB
+
\fBpng_uint_32 png_get_pHYs (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fI*res_x\fP\fB, png_uint_32 \fP\fI*res_y\fP\fB, int \fI*unit_type\fP\fB);\fP
+\fI\fB
+
\fBfloat png_get_pixel_aspect_ratio (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_uint_32 png_get_pixels_per_meter (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_voidp png_get_progressive_ptr (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_uint_32 png_get_PLTE (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_colorp \fP\fI*palette\fP\fB, int \fI*num_palette\fP\fB);\fP
-\fBpng_byte png_get_rgb_to_gray_status (png_structp png_ptr) png_uint_32 png_get_rowbytes (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
+\fI\fB
+
+\fBpng_byte png_get_rgb_to_gray_status (png_structp \fIpng_ptr)
+
+\fBpng_uint_32 png_get_rowbytes (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
+
+\fI\fB
\fBpng_bytepp png_get_rows (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_uint_32 png_get_sBIT (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_color_8p \fI*sig_bit\fP\fB);\fP
+\fI\fB
+
\fBpng_bytep png_get_signature (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_uint_32 png_get_sPLT (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_spalette_p \fI*splt_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_uint_32 png_get_sRGB (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fI*intent\fP\fB);\fP
+\fI\fB
+
\fBpng_uint_32 png_get_text (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_textp \fP\fI*text_ptr\fP\fB, int \fI*num_text\fP\fB);\fP
+\fI\fB
+
\fBpng_uint_32 png_get_tIME (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_timep \fI*mod_time\fP\fB);\fP
+\fI\fB
+
\fBpng_uint_32 png_get_tRNS (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_bytep \fP\fI*trans\fP\fB, int \fP\fI*num_trans\fP\fB, png_color_16p \fI*trans_values\fP\fB);\fP
-\fB#if !defined(PNG_1_0_X) png_uint_16 png_get_uint_16 (png_bytep \fIbuf\fP\fB);\fP
+\fI\fB
+
+\fB#if \fI!defined(PNG_1_0_X)
+
+\fBpng_uint_16 png_get_uint_16 (png_bytep \fIbuf\fP\fB);\fP
+
+\fI\fB
\fBpng_uint_32 png_get_uint_31 (png_bytep \fIbuf\fP\fB);\fP
-\fBpng_uint_32 png_get_uint_32 (png_bytep buf); \fI#endif
+\fI\fB
+
+\fBpng_uint_32 png_get_uint_32 (png_bytep \fIbuf\fP\fB);\fP
+
+\fI\fB#endif
+
+\fI\fB
\fBpng_uint_32 png_get_unknown_chunks (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_unknown_chunkpp \fIunknowns\fP\fB);\fP
+\fI\fB
+
\fBpng_voidp png_get_user_chunk_ptr (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_uint_32 png_get_user_height_max( png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_voidp png_get_user_transform_ptr (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_uint_32 png_get_user_width_max (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_uint_32 png_get_valid (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIflag\fP\fB);\fP
+\fI\fB
+
\fBpng_int_32 png_get_x_offset_microns (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_int_32 png_get_x_offset_pixels (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_uint_32 png_get_x_pixels_per_meter (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_int_32 png_get_y_offset_microns (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_int_32 png_get_y_offset_pixels (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_uint_32 png_get_y_pixels_per_meter (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_uint_32 png_get_compression_buffer_size (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBint png_handle_as_unknown (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fIchunk_name\fP\fB);\fP
+\fI\fB
+
\fBvoid png_init_io (png_structp \fP\fIpng_ptr\fP\fB, FILE \fI*fp\fP\fB);\fP
+\fI\fB
+
\fBDEPRECATED: void png_info_init (png_infop \fIinfo_ptr\fP\fB);\fP
+\fI\fB
+
\fBDEPRECATED: void png_info_init_2 (png_infopp \fP\fIptr_ptr\fP\fB, png_size_t \fIpng_info_struct_size\fP\fB);\fP
+\fI\fB
+
\fBpng_voidp png_malloc (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fIsize\fP\fB);\fP
+\fI\fB
+
\fBpng_voidp png_malloc_default(png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fIsize\fP\fB);\fP
+\fI\fB
+
\fBvoidp png_memcpy (png_voidp \fP\fIs1\fP\fB, png_voidp \fP\fIs2\fP\fB, png_size_t \fIsize\fP\fB);\fP
+\fI\fB
+
\fBpng_voidp png_memcpy_check (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIs1\fP\fB, png_voidp \fP\fIs2\fP\fB, png_uint_32 \fIsize\fP\fB);\fP
+\fI\fB
+
\fBvoidp png_memset (png_voidp \fP\fIs1\fP\fB, int \fP\fIvalue\fP\fB, png_size_t \fIsize\fP\fB);\fP
+\fI\fB
+
\fBpng_voidp png_memset_check (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIs1\fP\fB, int \fP\fIvalue\fP\fB, png_uint_32 \fIsize\fP\fB);\fP
+\fI\fB
+
\fBDEPRECATED: void png_permit_empty_plte (png_structp \fP\fIpng_ptr\fP\fB, int \fIempty_plte_permitted\fP\fB);\fP
+\fI\fB
+
\fBvoid png_process_data (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_bytep \fP\fIbuffer\fP\fB, png_size_t \fIbuffer_size\fP\fB);\fP
+\fI\fB
+
\fBvoid png_progressive_combine_row (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIold_row\fP\fB, png_bytep \fInew_row\fP\fB);\fP
+\fI\fB
+
\fBvoid png_read_destroy (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_infop \fIend_info_ptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_read_end (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_read_image (png_structp \fP\fIpng_ptr\fP\fB, png_bytepp \fIimage\fP\fB);\fP
+\fI\fB
+
\fBDEPRECATED: void png_read_init (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBDEPRECATED: void png_read_init_2 (png_structpp \fP\fIptr_ptr\fP\fB, png_const_charp \fP\fIuser_png_ver\fP\fB, png_size_t \fP\fIpng_struct_size\fP\fB, png_size_t \fIpng_info_size\fP\fB);\fP
+\fI\fB
+
\fBvoid png_read_info (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_read_png (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fItransforms\fP\fB, png_voidp \fIparams\fP\fB);\fP
+\fI\fB
+
\fBvoid png_read_row (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIrow\fP\fB, png_bytep \fIdisplay_row\fP\fB);\fP
+\fI\fB
+
\fBvoid png_read_rows (png_structp \fP\fIpng_ptr\fP\fB, png_bytepp \fP\fIrow\fP\fB, png_bytepp \fP\fIdisplay_row\fP\fB, png_uint_32 \fInum_rows\fP\fB);\fP
+\fI\fB
+
\fBvoid png_read_update_info (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
-\fB#if !defined(PNG_1_0_X) png_save_int_32 (png_bytep \fP\fIbuf\fP\fB, png_int_32 \fIi\fP\fB);\fP
+\fI\fB
+
+\fB#if \fI!defined(PNG_1_0_X)
+
+\fBpng_save_int_32 (png_bytep \fP\fIbuf\fP\fB, png_int_32 \fIi\fP\fB);\fP
+
+\fI\fB
\fBvoid png_save_uint_16 (png_bytep \fP\fIbuf\fP\fB, unsigned int \fIi\fP\fB);\fP
+\fI\fB
+
\fBvoid png_save_uint_32 (png_bytep \fP\fIbuf\fP\fB, png_uint_32 \fIi\fP\fB);\fP
-\fBvoid png_set_add_alpha (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIfiller\fP\fB, int flags); \fI#endif
+\fI\fB
+
+\fBvoid png_set_add_alpha (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIfiller\fP\fB, int \fIflags\fP\fB);\fP
+
+\fI\fB#endif
+
+\fI\fB
\fBvoid png_set_background (png_structp \fP\fIpng_ptr\fP\fB, png_color_16p \fP\fIbackground_color\fP\fB, int \fP\fIbackground_gamma_code\fP\fB, int \fP\fIneed_expand\fP\fB, double \fIbackground_gamma\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_bgr (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_bKGD (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_color_16p \fIbackground\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_cHRM (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, double \fP\fIwhite_x\fP\fB, double \fP\fIwhite_y\fP\fB, double \fP\fIred_x\fP\fB, double \fP\fIred_y\fP\fB, double \fP\fIgreen_x\fP\fB, double \fP\fIgreen_y\fP\fB, double \fP\fIblue_x\fP\fB, double \fIblue_y\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_cHRM_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fIwhite_x\fP\fB, png_uint_32 \fP\fIwhite_y\fP\fB, png_uint_32 \fP\fIred_x\fP\fB, png_uint_32 \fP\fIred_y\fP\fB, png_uint_32 \fP\fIgreen_x\fP\fB, png_uint_32 \fP\fIgreen_y\fP\fB, png_uint_32 \fP\fIblue_x\fP\fB, png_uint_32 \fIblue_y\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_compression_level (png_structp \fP\fIpng_ptr\fP\fB, int \fIlevel\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_compression_mem_level (png_structp \fP\fIpng_ptr\fP\fB, int \fImem_level\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_compression_method (png_structp \fP\fIpng_ptr\fP\fB, int \fImethod\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_compression_strategy (png_structp \fP\fIpng_ptr\fP\fB, int \fIstrategy\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_compression_window_bits (png_structp \fP\fIpng_ptr\fP\fB, int \fIwindow_bits\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_crc_action (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fIcrit_action\fP\fB, int \fIancil_action\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_dither (png_structp \fP\fIpng_ptr\fP\fB, png_colorp \fP\fIpalette\fP\fB, int \fP\fInum_palette\fP\fB, int \fP\fImaximum_colors\fP\fB, png_uint_16p \fP\fIhistogram\fP\fB, int \fIfull_dither\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_error_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIerror_ptr\fP\fB, png_error_ptr \fP\fIerror_fn\fP\fB, png_error_ptr \fIwarning_fn\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_expand (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_expand_gray_1_2_4_to_8(png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_filler (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIfiller\fP\fB, int \fIflags\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_filter (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fImethod\fP\fB, int \fIfilters\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_filter_heuristics (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fIheuristic_method\fP\fB, int \fP\fInum_weights\fP\fB, png_doublep \fP\fIfilter_weights\fP\fB, png_doublep \fIfilter_costs\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_flush (png_structp \fP\fIpng_ptr\fP\fB, int \fInrows\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_gamma (png_structp \fP\fIpng_ptr\fP\fB, double \fP\fIscreen_gamma\fP\fB, double \fIdefault_file_gamma\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_gAMA (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, double \fIfile_gamma\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_gAMA_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIfile_gamma\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_gray_1_2_4_to_8(png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_gray_to_rgb (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_hIST (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_16p \fIhist\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_iCCP (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_charp \fP\fIname\fP\fB, int \fP\fIcompression_type\fP\fB, png_charp \fP\fIprofile\fP\fB, png_uint_32 \fIproflen\fP\fB);\fP
+\fI\fB
+
\fBint png_set_interlace_handling (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_invalid (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fImask\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_invert_alpha (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_invert_mono (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_IHDR (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fIwidth\fP\fB, png_uint_32 \fP\fIheight\fP\fB, int \fP\fIbit_depth\fP\fB, int \fP\fIcolor_type\fP\fB, int \fP\fIinterlace_type\fP\fB, int \fP\fIcompression_type\fP\fB, int \fIfilter_type\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_keep_unknown_chunks (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fIkeep\fP\fB, png_bytep \fP\fIchunk_list\fP\fB, int \fInum_chunks\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_mem_fn(png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fImem_ptr\fP\fB, png_malloc_ptr \fP\fImalloc_fn\fP\fB, png_free_ptr \fIfree_fn\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_oFFs (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fIoffset_x\fP\fB, png_uint_32 \fP\fIoffset_y\fP\fB, int \fIunit_type\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_packing (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_packswap (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_palette_to_rgb(png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_pCAL (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_charp \fP\fIpurpose\fP\fB, png_int_32 \fP\fIX0\fP\fB, png_int_32 \fP\fIX1\fP\fB, int \fP\fItype\fP\fB, int \fP\fInparams\fP\fB, png_charp \fP\fIunits\fP\fB, png_charpp \fIparams\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_pHYs (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fIres_x\fP\fB, png_uint_32 \fP\fIres_y\fP\fB, int \fIunit_type\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_progressive_read_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIprogressive_ptr\fP\fB, png_progressive_info_ptr \fP\fIinfo_fn\fP\fB, png_progressive_row_ptr \fP\fIrow_fn\fP\fB, png_progressive_end_ptr \fIend_fn\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_PLTE (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_colorp \fP\fIpalette\fP\fB, int \fInum_palette\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_read_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIio_ptr\fP\fB, png_rw_ptr \fIread_data_fn\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_read_status_fn (png_structp \fP\fIpng_ptr\fP\fB, png_read_status_ptr \fIread_row_fn\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_read_user_transform_fn (png_structp \fP\fIpng_ptr\fP\fB, png_user_transform_ptr \fIread_user_transform_fn\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_rgb_to_gray (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fIerror_action\fP\fB, double \fP\fIred\fP\fB, double \fIgreen\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_rgb_to_gray_fixed (png_structp \fP\fIpng_ptr\fP\fB, int error_action png_fixed_point \fP\fIred\fP\fB, png_fixed_point \fIgreen\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_rows (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_bytepp \fIrow_pointers\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_sBIT (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_color_8p \fIsig_bit\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_sCAL (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_charp \fP\fIunit\fP\fB, double \fP\fIwidth\fP\fB, double \fIheight\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_shift (png_structp \fP\fIpng_ptr\fP\fB, png_color_8p \fItrue_bits\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_sig_bytes (png_structp \fP\fIpng_ptr\fP\fB, int \fInum_bytes\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_sPLT (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_spalette_p \fP\fIsplt_ptr\fP\fB, int \fInum_spalettes\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_sRGB (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fIintent\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_sRGB_gAMA_and_cHRM (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fIintent\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_strip_16 (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_strip_alpha (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_swap (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_swap_alpha (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_text (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_textp \fP\fItext_ptr\fP\fB, int \fInum_text\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_tIME (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_timep \fImod_time\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_tRNS (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_bytep \fP\fItrans\fP\fB, int \fP\fInum_trans\fP\fB, png_color_16p \fItrans_values\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_tRNS_to_alpha(png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBpng_uint_32 png_set_unknown_chunks (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_unknown_chunkp \fP\fIunknowns\fP\fB, int \fP\fInum\fP\fB, int \fIlocation\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_unknown_chunk_location(png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fIchunk\fP\fB, int \fIlocation\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_read_user_chunk_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIuser_chunk_ptr\fP\fB, png_user_chunk_ptr \fIread_user_chunk_fn\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_user_limits (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIuser_width_max\fP\fB, png_uint_32 \fIuser_height_max\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_user_transform_info (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIuser_transform_ptr\fP\fB, int \fP\fIuser_transform_depth\fP\fB, int \fIuser_transform_channels\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_write_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIio_ptr\fP\fB, png_rw_ptr \fP\fIwrite_data_fn\fP\fB, png_flush_ptr \fIoutput_flush_fn\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_write_status_fn (png_structp \fP\fIpng_ptr\fP\fB, png_write_status_ptr \fIwrite_row_fn\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_write_user_transform_fn (png_structp \fP\fIpng_ptr\fP\fB, png_user_transform_ptr \fIwrite_user_transform_fn\fP\fB);\fP
+\fI\fB
+
\fBvoid png_set_compression_buffer_size(png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fIsize\fP\fB);\fP
+\fI\fB
+
\fBint png_sig_cmp (png_bytep \fP\fIsig\fP\fB, png_size_t \fP\fIstart\fP\fB, png_size_t \fInum_to_check\fP\fB);\fP
+\fI\fB
+
\fBvoid png_start_read_image (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_warning (png_structp \fP\fIpng_ptr\fP\fB, png_const_charp \fImessage\fP\fB);\fP
+\fI\fB
+
\fBvoid png_write_chunk (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIchunk_name\fP\fB, png_bytep \fP\fIdata\fP\fB, png_size_t \fIlength\fP\fB);\fP
+\fI\fB
+
\fBvoid png_write_chunk_data (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIdata\fP\fB, png_size_t \fIlength\fP\fB);\fP
+\fI\fB
+
\fBvoid png_write_chunk_end (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_write_chunk_start (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIchunk_name\fP\fB, png_uint_32 \fIlength\fP\fB);\fP
+\fI\fB
+
\fBvoid png_write_destroy (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_write_end (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_write_flush (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_write_image (png_structp \fP\fIpng_ptr\fP\fB, png_bytepp \fIimage\fP\fB);\fP
+\fI\fB
+
\fBDEPRECATED: void png_write_init (png_structp \fIpng_ptr\fP\fB);\fP
+\fI\fB
+
\fBDEPRECATED: void png_write_init_2 (png_structpp \fP\fIptr_ptr\fP\fB, png_const_charp \fP\fIuser_png_ver\fP\fB, png_size_t \fP\fIpng_struct_size\fP\fB, png_size_t \fIpng_info_size\fP\fB);\fP
+\fI\fB
+
\fBvoid png_write_info (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_write_info_before_PLTE (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
+\fI\fB
+
\fBvoid png_write_png (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fItransforms\fP\fB, png_voidp \fIparams\fP\fB);\fP
+\fI\fB
+
\fBvoid png_write_row (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fIrow\fP\fB);\fP
+\fI\fB
+
\fBvoid png_write_rows (png_structp \fP\fIpng_ptr\fP\fB, png_bytepp \fP\fIrow\fP\fB, png_uint_32 \fInum_rows\fP\fB);\fP
+\fI\fB
+
\fBvoidpf png_zalloc (voidpf \fP\fIpng_ptr\fP\fB, uInt \fP\fIitems\fP\fB, uInt \fIsize\fP\fB);\fP
+\fI\fB
+
\fBvoid png_zfree (voidpf \fP\fIpng_ptr\fP\fB, voidpf \fIptr\fP\fB);\fP
+\fI\fB
+
.SH DESCRIPTION
The
.I libpng
@@ -410,18 +821,20 @@ Following is a copy of the libpng.txt file that accompanies libpng.
.SH LIBPNG.TXT
libpng.txt - A description on how to use and modify libpng
- libpng version 1.2.29 - May 8, 2008
+ libpng version 1.2.40 - September 10, 2009
Updated and distributed by Glenn Randers-Pehrson
<glennrp at users.sourceforge.net>
- Copyright (c) 1998-2008 Glenn Randers-Pehrson
- For conditions of distribution and use, see copyright
- notice in png.h.
+ Copyright (c) 1998-2009 Glenn Randers-Pehrson
+
+ This document is released under the libpng license.
+ For conditions of distribution and use, see the disclaimer
+ and license in png.h
Based on:
- libpng versions 0.97, January 1998, through 1.2.29 - May 8, 2008
+ libpng versions 0.97, January 1998, through 1.2.40 - September 10, 2009
Updated and distributed by Glenn Randers-Pehrson
- Copyright (c) 1998-2008 Glenn Randers-Pehrson
+ Copyright (c) 1998-2009 Glenn Randers-Pehrson
libpng 1.0 beta 6 version 0.96 May 28, 1997
Updated and distributed by Andreas Dilger
@@ -551,9 +964,10 @@ so if it doesn't work, you don't have much to undo. Of course, you
will also want to insure that you are, in fact, dealing with a PNG
file. Libpng provides a simple check to see if a file is a PNG file.
To use it, pass in the first 1 to 8 bytes of the file to the function
-png_sig_cmp(), and it will return 0 if the bytes match the corresponding
-bytes of the PNG signature, or nonzero otherwise. Of course, the more bytes
-you pass in, the greater the accuracy of the prediction.
+png_sig_cmp(), and it will return 0 (false) if the bytes match the
+corresponding bytes of the PNG signature, or nonzero (true) otherwise.
+Of course, the more bytes you pass in, the greater the accuracy of the
+prediction.
If you are intending to keep the file pointer open for use in libpng,
you must ensure you don't read more than 8 bytes from the beginning
@@ -730,35 +1144,14 @@ To inform libpng about your function, use
png_set_read_status_fn(png_ptr, read_row_callback);
-.SS Width and height limits
-
-The PNG specification allows the width and height of an image to be as
-large as 2^31-1 (0x7fffffff), or about 2.147 billion rows and columns.
-Since very few applications really need to process such large images,
-we have imposed an arbitrary 1-million limit on rows and columns.
-Larger images will be rejected immediately with a png_error() call. If
-you wish to override this limit, you can use
-
- png_set_user_limits(png_ptr, width_max, height_max);
-
-to set your own limits, or use width_max = height_max = 0x7fffffffL
-to allow all valid dimensions (libpng may reject some very large images
-anyway because of potential buffer overflow conditions).
-
-You should put this statement after you create the PNG structure and
-before calling png_read_info(), png_read_png(), or png_process_data().
-If you need to retrieve the limits that are being applied, use
-
- width_max = png_get_user_width_max(png_ptr);
- height_max = png_get_user_height_max(png_ptr);
-
.SS Unknown-chunk handling
Now you get to set the way the library processes unknown chunks in the
input PNG stream. Both known and unknown chunks will be read. Normal
behavior is that known chunks will be parsed into information in
-various info_ptr members while unknown chunks will be discarded. To change
-this, you can call:
+various info_ptr members while unknown chunks will be discarded. This
+behavior can be wasteful if your application will never use some known
+chunk types. To change this, you can call:
png_set_keep_unknown_chunks(png_ptr, keep,
chunk_list, num_chunks);
@@ -816,6 +1209,27 @@ callback function:
(int)sizeof(unused_chunks)/5);
#endif
+.SS User limits
+
+The PNG specification allows the width and height of an image to be as
+large as 2^31-1 (0x7fffffff), or about 2.147 billion rows and columns.
+Since very few applications really need to process such large images,
+we have imposed an arbitrary 1-million limit on rows and columns.
+Larger images will be rejected immediately with a png_error() call. If
+you wish to override this limit, you can use
+
+ png_set_user_limits(png_ptr, width_max, height_max);
+
+to set your own limits, or use width_max = height_max = 0x7fffffffL
+to allow all valid dimensions (libpng may reject some very large images
+anyway because of potential buffer overflow conditions).
+
+You should put this statement after you create the PNG structure and
+before calling png_read_info(), png_read_png(), or png_process_data().
+If you need to retrieve the limits that are being applied, use
+
+ width_max = png_get_user_width_max(png_ptr);
+ height_max = png_get_user_height_max(png_ptr);
.SS The high-level read interface
@@ -882,6 +1296,8 @@ row_pointers prior to calling png_read_png() with
row_pointers = png_malloc(png_ptr,
height*png_sizeof(png_bytep));
for (int i=0; i<height, i++)
+ row_pointers[i]=NULL; /* security precaution */
+ for (int i=0; i<height, i++)
row_pointers[i]=png_malloc(png_ptr,
width*pixel_size);
png_set_rows(png_ptr, info_ptr, &row_pointers);
@@ -1257,9 +1673,6 @@ things.
As of libpng version 1.2.9, png_set_expand_gray_1_2_4_to_8() was
added. It expands the sample depth without changing tRNS to alpha.
-At the same time, png_set_gray_1_2_4_to_8() was deprecated, and it
-will be removed from a future version.
-
PNG can have files with 16 bits per channel. If you only can handle
8 bits per channel, this will strip the pixels down to 8 bit.
@@ -2111,7 +2524,7 @@ types.
PNG_FILTER_NONE | PNG_FILTER_VALUE_NONE |
PNG_FILTER_SUB | PNG_FILTER_VALUE_SUB |
PNG_FILTER_UP | PNG_FILTER_VALUE_UP |
- PNG_FILTER_AVE | PNG_FILTER_VALUE_AVE |
+ PNG_FILTER_AVG | PNG_FILTER_VALUE_AVG |
PNG_FILTER_PAETH | PNG_FILTER_VALUE_PAETH|
PNG_ALL_FILTERS);
@@ -2201,10 +2614,14 @@ Some of the more important parts of the png_info are:
PNG_INTRAPIXEL_DIFFERENCING)
If you call png_set_IHDR(), the call must appear before any of the
-other png_set_*() functions, which might require access to some of
+other png_set_*() functions, because they might require access to some of
the IHDR settings. The remaining png_set_*() functions can be called
in any order.
+If you wish, you can reset the compression_type, interlace_type, or
+filter_method later by calling png_set_IHDR() again; if you do this, the
+width, height, bit_depth, and color_type must be the same in each call.
+
png_set_PLTE(png_ptr, info_ptr, palette,
num_palette);
palette - the palette for the file
@@ -2266,8 +2683,9 @@ in any order.
trans_values);
trans - array of transparent entries for
palette (PNG_INFO_tRNS)
- trans_values - graylevel or color sample values of
- the single transparent color for
+ trans_values - graylevel or color sample values
+ (in order red, green, blue) of the
+ single transparent color for
non-paletted images (PNG_INFO_tRNS)
num_trans - number of transparent entries
(PNG_INFO_tRNS)
@@ -2476,7 +2894,12 @@ transformations are permitted, enabled by the following masks.
PNG_TRANSFORM_INVERT_ALPHA Change alpha from opacity
to transparency
PNG_TRANSFORM_SWAP_ENDIAN Byte-swap 16-bit samples
- PNG_TRANSFORM_STRIP_FILLER Strip out filler bytes.
+ PNG_TRANSFORM_STRIP_FILLER Strip out filler
+ bytes (deprecated).
+ PNG_TRANSFORM_STRIP_FILLER_BEFORE Strip out leading
+ filler bytes
+ PNG_TRANSFORM_STRIP_FILLER_AFTER Strip out trailing
+ filler bytes
If you have valid image data in the info structure (you can use
png_set_rows() to put image data in the info structure), simply do this:
@@ -2883,9 +3306,15 @@ The replacement I/O functions must have prototypes as follows:
png_bytep data, png_size_t length);
void user_flush_data(png_structp png_ptr);
+The user_read_data() function is responsible for detecting and
+handling end-of-data errors.
+
Supplying NULL for the read, write, or flush functions sets them back
-to using the default C stream functions. It is an error to read from
-a write stream, and vice versa.
+to using the default C stream functions, which expect the io_ptr to
+point to a standard *FILE structure. It is probably a mistake
+to use NULL for one of write_data_fn and output_flush_fn but not both
+of them, unless you have built libpng with PNG_NO_WRITE_FLUSH defined.
+It is an error to read from a write stream, and vice versa.
Error handling in libpng is done through png_error() and png_warning().
Errors handled through png_error() are fatal, meaning that png_error()
@@ -2990,11 +3419,12 @@ you may also have to change the memory allocators (png_malloc, etc.).
.SS Configuring for compiler xxx:
-All includes for libpng are in pngconf.h. If you need to add/change/delete
-an include, this is the place to do it. The includes that are not
-needed outside libpng are protected by the PNG_INTERNAL definition,
-which is only defined for those routines inside libpng itself. The
-files in libpng proper only include png.h, which includes pngconf.h.
+All includes for libpng are in pngconf.h. If you need to add, change
+or delete an include, this is the place to do it.
+The includes that are not needed outside libpng are protected by the
+PNG_INTERNAL definition, which is only defined for those routines inside
+libpng itself. The files in libpng proper only include png.h, which
+includes pngconf.h.
.SS Configuring zlib:
@@ -3063,7 +3493,7 @@ currently does not allocate the filter buffers until png_write_row()
is called for the first time.)
filters = PNG_FILTER_NONE | PNG_FILTER_SUB
- PNG_FILTER_UP | PNG_FILTER_AVE |
+ PNG_FILTER_UP | PNG_FILTER_AVG |
PNG_FILTER_PAETH | PNG_ALL_FILTERS;
png_set_filter(png_ptr, PNG_FILTER_TYPE_BASE,
@@ -3185,7 +3615,7 @@ When PNG_DEBUG = 1, the macros are defined, but only png_debug statements
having level = 0 will be printed. There aren't any such statements in
this version of libpng, but if you insert some they will be printed.
-.SH VII. MNG support
+.SH VI. MNG support
The MNG specification (available at http://www.libpng.org/pub/mng) allows
certain extensions to PNG for PNG images that are embedded in MNG datastreams.
@@ -3210,7 +3640,7 @@ or any other MNG chunks; your application must provide its own support for
them. You may wish to consider using libmng (available at
http://www.libmng.com) instead.
-.SH VIII. Changes to Libpng from version 0.88
+.SH VII. Changes to Libpng from version 0.88
It should be noted that versions of libpng later than 0.96 are not
distributed by the original libpng author, Guy Schalnat, nor by
@@ -3259,15 +3689,202 @@ application:
png_uint_32 application_vn = PNG_LIBPNG_VER;
-.SH IX. Y2K Compliance in libpng
+.SH VIII. Changes to Libpng from version 1.0.x to 1.2.x
+
+Support for user memory management was enabled by default. To
+accomplish this, the functions png_create_read_struct_2(),
+png_create_write_struct_2(), png_set_mem_fn(), png_get_mem_ptr(),
+png_malloc_default(), and png_free_default() were added.
+
+Support for certain MNG features was enabled.
+
+Support for numbered error messages was added. However, we never got
+around to actually numbering the error messages. The function
+png_set_strip_error_numbers() was added (Note: the prototype for this
+function was inadvertently removed from png.h in PNG_NO_ASSEMBLER_CODE
+builds of libpng-1.2.15. It was restored in libpng-1.2.36).
+
+The png_malloc_warn() function was added at libpng-1.2.3. This issues
+a png_warning and returns NULL instead of aborting when it fails to
+acquire the requested memory allocation.
+
+Support for setting user limits on image width and height was enabled
+by default. The functions png_set_user_limits(), png_get_user_width_max(),
+and png_get_user_height_max() were added at libpng-1.2.6.
+
+The png_set_add_alpha() function was added at libpng-1.2.7.
+
+The function png_set_expand_gray_1_2_4_to_8() was added at libpng-1.2.9.
+Unlike png_set_gray_1_2_4_to_8(), the new function does not expand the
+tRNS chunk to alpha. The png_set_gray_1_2_4_to_8() function is
+deprecated.
+
+A number of macro definitions in support of runtime selection of
+assembler code features (especially Intel MMX code support) were
+added at libpng-1.2.0:
+
+ PNG_ASM_FLAG_MMX_SUPPORT_COMPILED
+ PNG_ASM_FLAG_MMX_SUPPORT_IN_CPU
+ PNG_ASM_FLAG_MMX_READ_COMBINE_ROW
+ PNG_ASM_FLAG_MMX_READ_INTERLACE
+ PNG_ASM_FLAG_MMX_READ_FILTER_SUB
+ PNG_ASM_FLAG_MMX_READ_FILTER_UP
+ PNG_ASM_FLAG_MMX_READ_FILTER_AVG
+ PNG_ASM_FLAG_MMX_READ_FILTER_PAETH
+ PNG_ASM_FLAGS_INITIALIZED
+ PNG_MMX_READ_FLAGS
+ PNG_MMX_FLAGS
+ PNG_MMX_WRITE_FLAGS
+ PNG_MMX_FLAGS
+
+We added the following functions in support of runtime
+selection of assembler code features:
+
+ png_get_mmx_flagmask()
+ png_set_mmx_thresholds()
+ png_get_asm_flags()
+ png_get_mmx_bitdepth_threshold()
+ png_get_mmx_rowbytes_threshold()
+ png_set_asm_flags()
+
+We replaced all of these functions with simple stubs in libpng-1.2.20,
+when the Intel assembler code was removed due to a licensing issue.
+
+.SH IX. (Omitted)
+
+.SH X. Detecting libpng
+
+The png_get_io_ptr() function has been present since libpng-0.88, has never
+changed, and is unaffected by conditional compilation macros. It is the
+best choice for use in configure scripts for detecting the presence of any
+libpng version since 0.88. In an autoconf "configure.in" you could use
+
+ AC_CHECK_LIB(png, png_get_io_ptr, ...
+
+.SH XI. Source code repository
+
+Since about February 2009, version 1.2.34, libpng has been under "git" source
+control. The git repository was built from old libpng-x.y.z.tar.gz files
+going back to version 0.70. You can access the git repository (read only)
+at
+
+ git://libpng.git.sourceforge.net/gitroot/libpng
+
+or you can browse it via "gitweb" at
+
+ http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng
-May 8, 2008
+Patches can be sent to glennrp at users.sourceforge.net or to
+png-mng-implement at lists.sourceforge.net or you can upload them to
+the libpng bug tracker at
+
+ http://libpng.sourceforge.net
+
+.SH XII. Coding style
+
+Our coding style is similar to the "Allman" style, with curly
+braces on separate lines:
+
+ if (condition)
+ {
+ action;
+ }
+
+ else if (another condition)
+ {
+ another action;
+ }
+
+The braces can be omitted from simple one-line actions:
+
+ if (condition)
+ return (0);
+
+We use 3-space indentation, except for continued statements which
+are usually indented the same as the first line of the statement
+plus four more spaces.
+
+Comments appear with the leading "/*" at the same indentation as
+the statement that follows the comment:
+
+ /* Single-line comment */
+ statement;
+
+ /* Multiple-line
+ * comment
+ */
+ statement;
+
+Very short comments can be placed at the end of the statement
+to which they pertain:
+
+ statement; /* comment */
+
+We don't use C++ style ("//") comments. We have, however,
+used them in the past in some now-abandoned MMX assembler
+code.
+
+Functions and their curly braces are not indented, and
+exported functions are marked with PNGAPI:
+
+ /* This is a public function that is visible to
+ * application programers. It does thus-and-so.
+ */
+ void PNGAPI
+ png_exported_function(png_ptr, png_info, foo)
+ {
+ body;
+ }
+
+The prototypes for all exported functions appear in png.h,
+above the comment that says
+
+ /* Maintainer: Put new public prototypes here ... */
+
+We mark all non-exported functions with "/* PRIVATE */"":
+
+ void /* PRIVATE */
+ png_non_exported_function(png_ptr, png_info, foo)
+ {
+ body;
+ }
+
+The prototypes for non-exported functions (except for those in
+pngtest) appear in
+the PNG_INTERNAL section of png.h
+above the comment that says
+
+ /* Maintainer: Put new private prototypes here ^ and in libpngpf.3 */
+
+The names of all exported functions and variables begin
+with "png_", and all publicly visible C preprocessor
+macros begin with "PNG_".
+
+We put a space after each comma and after each semicolon
+in "for" statments, and we put spaces before and after each
+C binary operator and after "for" or "while". We don't
+put a space between a typecast and the expression being
+cast, nor do we put one between a function name and the
+left parenthesis that follows it:
+
+ for (i = 2; i > 0; --i)
+ x[i] = a(x) + (int)b;
+
+We prefer #ifdef and #ifndef to #if defined() and if !defined()
+when there is only one macro being tested.
+
+Other rules can be inferred by inspecting the libpng
+source.
+
+.SH XIII. Y2K Compliance in libpng
+
+September 10, 2009
Since the PNG Development group is an ad-hoc body, we can't make
an official declaration.
This is your unofficial assurance that libpng from version 0.71 and
-upward through 1.2.29 are Y2K compliant. It is my belief that earlier
+upward through 1.2.40 are Y2K compliant. It is my belief that earlier
versions were also Y2K compliant.
Libpng only has three year fields. One is a 2-byte unsigned integer that
@@ -3499,6 +4116,56 @@ the first widely used release:
1.2.29rc01 13 10229 12.so.0.29[.0]
1.0.35 10 10035 10.so.0.35[.0]
1.2.29 13 10229 12.so.0.29[.0]
+ 1.0.37 10 10037 10.so.0.37[.0]
+ 1.2.30beta01-04 13 10230 12.so.0.30[.0]
+ 1.0.38rc01-08 10 10038 10.so.0.38[.0]
+ 1.2.30rc01-08 13 10230 12.so.0.30[.0]
+ 1.0.38 10 10038 10.so.0.38[.0]
+ 1.2.30 13 10230 12.so.0.30[.0]
+ 1.0.39rc01-03 10 10039 10.so.0.39[.0]
+ 1.2.31rc01-03 13 10231 12.so.0.31[.0]
+ 1.0.39 10 10039 10.so.0.39[.0]
+ 1.2.31 13 10231 12.so.0.31[.0]
+ 1.2.32beta01-02 13 10232 12.so.0.32[.0]
+ 1.0.40rc01 10 10040 10.so.0.40[.0]
+ 1.2.32rc01 13 10232 12.so.0.32[.0]
+ 1.0.40 10 10040 10.so.0.40[.0]
+ 1.2.32 13 10232 12.so.0.32[.0]
+ 1.2.33beta01-02 13 10233 12.so.0.33[.0]
+ 1.2.33rc01-02 13 10233 12.so.0.33[.0]
+ 1.0.41rc01 10 10041 10.so.0.41[.0]
+ 1.2.33 13 10233 12.so.0.33[.0]
+ 1.0.41 10 10041 10.so.0.41[.0]
+ 1.2.34beta01-07 13 10234 12.so.0.34[.0]
+ 1.0.42rc01 10 10042 10.so.0.42[.0]
+ 1.2.34rc01 13 10234 12.so.0.34[.0]
+ 1.0.42 10 10042 10.so.0.42[.0]
+ 1.2.34 13 10234 12.so.0.34[.0]
+ 1.2.35beta01-03 13 10235 12.so.0.35[.0]
+ 1.0.43rc01-02 10 10043 10.so.0.43[.0]
+ 1.2.35rc01-02 13 10235 12.so.0.35[.0]
+ 1.0.43 10 10043 10.so.0.43[.0]
+ 1.2.35 13 10235 12.so.0.35[.0]
+ 1.2.36beta01-05 13 10236 12.so.0.36[.0]
+ 1.2.36rc01 13 10236 12.so.0.36[.0]
+ 1.0.44 10 10044 10.so.0.44[.0]
+ 1.2.36 13 10236 12.so.0.36[.0]
+ 1.2.37beta01-03 13 10237 12.so.0.37[.0]
+ 1.2.37rc01 13 10237 12.so.0.37[.0]
+ 1.2.37 13 10237 12.so.0.37[.0]
+ 1.2.45 10 10045 12.so.0.45[.0]
+ 1.0.46 10 10046 10.so.0.46[.0]
+ 1.2.38beta01 13 10238 12.so.0.38[.0]
+ 1.2.38rc01-03 13 10238 12.so.0.38[.0]
+ 1.0.47 10 10047 10.so.0.47[.0]
+ 1.2.38 13 10238 12.so.0.38[.0]
+ 1.2.39beta01-05 13 10239 12.so.0.39[.0]
+ 1.2.39rc01 13 10239 12.so.0.39[.0]
+ 1.0.48 10 10048 10.so.0.48[.0]
+ 1.2.39 13 10239 12.so.0.39[.0]
+ 1.2.40rc01 13 10240 12.so.0.40[.0]
+ 1.0.49 10 10049 10.so.0.49[.0]
+ 1.2.40 13 10240 12.so.0.40[.0]
Henceforth the source version will match the shared-library minor
and patch numbers; the shared-library major version number will be
@@ -3554,7 +4221,7 @@ possible without all of you.
Thanks to Frank J. T. Wojcik for helping with the documentation.
-Libpng version 1.2.29 - May 8, 2008:
+Libpng version 1.2.40 - September 10, 2009:
Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
@@ -3575,7 +4242,9 @@ included in the libpng distribution, the latter shall prevail.)
If you modify libpng you may insert additional notices immediately following
this sentence.
-libpng versions 1.2.6, August 15, 2004, through 1.2.29, May 8, 2008, are
+This code is released under the libpng license.
+
+libpng versions 1.2.6, August 15, 2004, through 1.2.40, September 10, 2009, are
Copyright (c) 2004,2006-2008 Glenn Randers-Pehrson, and are
distributed according to the same disclaimer and license as libpng-1.2.5
with the following individual added to the list of Contributing Authors
@@ -3674,7 +4343,7 @@ certification mark of the Open Source Initiative.
Glenn Randers-Pehrson
glennrp at users.sourceforge.net
-May 8, 2008
+September 10, 2009
.\" end of man page
diff --git a/src/3rdparty/libpng/libpngpf.3 b/src/3rdparty/libpng/libpngpf.3