Merge branch 'qt-4.8-from-4.7' of scm.dev.nokia.troll.no:qt/qt-integration into master-integration

* 'qt-4.8-from-4.7' of scm.dev.nokia.troll.no:qt/qt-integration:
  Revert accidental commit
  Rework threading internals in XmlListModel to avoid global static
  Fix undesirable VKB popup at task switch
  Fix compile errors on S60 3.2
  Fix to QGLWidget rendering with VG graphics system
  Symbian/gcce: Remove the useless -T flag
  Fix installation on S60 5.0
  Fix fancybrowser.pro
  Move cursorDelegate with the mouse selection of read only text input.
  Ignore child elements in non-application caption/pkg name translations
  Updating libpng: Patches to libpng 1.5.4 for building it in Qt
  Updating libpng: Add libpng version 1.5.4
  Updating libpng: Remove version 1.4.0

1 files changed, 170 insertions, 71 deletions

diff --git a/src/3rdparty/libpng/ANNOUNCE b/src/3rdparty/libpng/ANNOUNCE
index 4a3b018..2a9fb65 100644
--- a/src/3rdparty/libpng/ANNOUNCE
+++ b/src/3rdparty/libpng/ANNOUNCE
@@ -1,5 +1,5 @@
 
-Libpng 1.5.1 - February 3, 2011
+Libpng 1.5.4 - July 7, 2011
 
 This is a public release of libpng, intended for use in production codes.
 
@@ -8,85 +8,184 @@ Files available for download:
 Source files with LF line endings (for Unix/Linux) and with a
 "configure" script
 
-   libpng-1.5.1.tar.xz (LZMA-compressed, recommended)
-   libpng-1.5.1.tar.gz
-   libpng-1.5.1.tar.bz2
+   libpng-1.5.4.tar.xz (LZMA-compressed, recommended)
+   libpng-1.5.4.tar.gz
+   libpng-1.5.4.tar.bz2
 
 Source files with CRLF line endings (for Windows), without the
 "configure" script
 
-   lpng151.7z  (LZMA-compressed, recommended)
-   lpng151.zip
+   lpng154.7z  (LZMA-compressed, recommended)
+   lpng154.zip
 
 Other information:
 
-   libpng-1.5.1-README.txt
-   libpng-1.5.1-LICENSE.txt
+   libpng-1.5.4-README.txt
+   libpng-1.5.4-LICENSE.txt
 
-Changes since the last public release (1.5.0):
+Changes since the last public release (1.5.2):
 
-  Added description of png_set_crc_action() to the manual.
-  Added a note in the manual that the type of the iCCP profile was changed
-    from png_charpp to png_bytepp in png_get_iCCP().  Similarly,
-    it was changed from png_charpp to png_const_bytepp in png_set_iCCP().
-  Ensure that png_rgb_to_gray ignores palette mapped images, if libpng
-    internally happens to call it with one.
-  Fixed the failure to handle palette mapped images correctly.
-  Fixed a bug in handling of interlaced images (bero at arklinux.org).
-  Updated CMakeLists.txt (Clifford Yapp)
-  Fixed typecasting of some png_debug() statements (Cosmin)
-  Updated documentation of png_set|get_tRNS() (Thomas Klausner).
-  Mentioned in the documentation that applications must #include "zlib.h"
-    if they need access to anything in zlib.h, and that a number of
-    macros such as png_memset() are no longer accessible by applications.
-  Corrected pngvalid gamma test "sample" function to access all of the color
-    samples of each pixel, instead of sampling the red channel three times.
-  Changed variable names index, div, exp, and gamma to char_index, divisor,
-    exp_b10, and gamma_val, respectively, to avoid "shadow" warnings.
-  Prevent png_push_crc_skip() from hanging while reading an unknown chunk
-    or an over-large compressed zTXt chunk with the progressive reader.
-  Eliminated more GCC "shadow" warnings.
-  Revised png_fixed() in png.c to avoid compiler warning about reaching the
-    end without returning anything.
-  In the manual, describe the png_get_IHDR() arguments in the correct order.
-  Added const_png_structp and const_png_infop types, and used them in
-    prototypes for most png_get_*() functions.
-  Added png_get_io_chunk_type() and deprecated png_get_io_chunk_name()
-  Added synopses for the IO_STATE functions and other missing synopses
-    to the manual. Removed the synopses from libpngpf.3 because they
-    were out of date and no longer useful.  Better information can be
-    obtained by reading the prototypes and comments in pngpriv.h
-  Attempted to fix cpp on Solaris with S. Studio 12 cc, fix build
-    Added a make macro DFNCPP that is a CPP that will accept the tokens in
-    a .dfn file and adds configure stuff to test for such a CPP.  ./configure
-    should fail if one is not available.
-  Corrected const_png_ in png.h to png_const_ to avoid polluting the namespace.
-  Added png_get_current_row_number and png_get_current_pass_number for the
-    benefit of the user transform callback.
-  Added png_process_data_pause and png_process_data_skip for the benefit of
-    progressive readers that need to stop data processing or want to optimize
-    skipping of unread data (e.g. if the reader marks a chunk to be skipped.)
-  Enhanced pngvalid, corrected an error in gray_to_rgb, corrected doc error.
-    pngvalid contains tests of transforms, which tests are currently disabled
-    because they are incompletely tested.  gray_to_rgb was failing to expand
-    the bit depth for smaller bit depth images; this seems to be a long
-    standing error and resulted, apparently, in invalid output.  The
-    documentation did not accurately describe what libpng really does when
-    converting RGB to gray.
-  Fixed incorrect examples of callback prototypes in the manual, that were
-    introduced in libpng-1.0.0.
-  In addition the order of the png_get_uint macros with respect to the
-    relevant function definitions has been reversed.  This helps the
-    preprocessing of the symbol files be more robust.  Furthermore, the
-    symbol file preprocessing now uses -DPNG_NO_USE_READ_MACROS even when
-    the library may actually be built with PNG_USE_READ_MACROS; this stops
-    the read macros interfering with the symbol file format.
-  Made the manual, synopses, and function prototypes use the function
-    argument names file_gamma, int_file_gamma, and srgb_intent consistently.
-  Changed PNG_UNUSED from "param=param;" to "(void)param;".
-  Added transform tests to pngvalid and simplified the arguments.
-  Added a request in the manual that applications do not use "png_" or
-    "PNG_" to begin any of their own symbols.
+  Re-initialize the zlib compressor before compressing non-IDAT chunks.
+  Added API functions to set parameters for zlib compression of non-IDAT
+    chunks.
+  Updated scripts/symbols.def with new API functions.
+  Only compile the new zlib re-initializing code when text or iCCP is
+    supported, using PNG_WRITE_COMPRESSED_TEXT_SUPPORTED macro.
+  Improved the optimization of the zlib CMF byte (see libpng-1.2.6).
+  Optimize the zlib CMF byte in non-IDAT compressed chunks
+  Fixed gcc -ansi -pedantic compile. A strict ANSI system does not have
+    snprintf, and the "__STRICT_ANSI__" detects that condition more reliably
+    than __STDC__ (John Bowler).
+  Removed the PNG_PTR_NORETURN attribute because it too dangerous. It tells
+    the compiler that a user supplied callback (the error handler) does not
+    return, yet there is no guarantee in practice that the application code
+    will correctly implement the error handler because the compiler only
+    issues a warning if there is a mistake (John Bowler).
+  Removed the no-longer-used PNG_DEPSTRUCT macro.
+  Updated the zlib version to 1.2.5 in the VStudio project.
+  Fixed 64-bit builds where png_uint_32 is smaller than png_size_t in
+    pngwutil.c (John Bowler).
+  Fixed bug with stripping the filler or alpha channel when writing, that
+    was introduced in libpng-1.5.2 (bug report by Andrew Church).
+  Updated pngtest.png with the new zlib CMF optimization.
+  Cleaned up conditional compilation code and of background/gamma handling
+    Internal changes only except a new option to avoid compiling the
+    png_build_grayscale_palette API (which is not used at all internally.)
+    The main change is to move the transform tests (READ_TRANSFORMS,
+    WRITE_TRANSFORMS) up one level to the caller of the APIs.  This avoids
+    calls to spurious functions if all transforms are disabled and slightly
+    simplifies those functions.  Pngvalid modified to handle this.
+    A minor change is to stop the strip_16 and expand_16 interfaces from
+    disabling each other; this allows the future alpha premultiplication
+    code to use 16-bit intermediate values while still producing 8-bit output.
+    png_do_background and png_do_gamma have been simplified to take a single
+    pointer to the png_struct rather than pointers to every item required
+    from the png_struct. This makes no practical difference to the internal
+    code.
+  A serious bug in the pngvalid internal routine 'standard_display_init' has
+    been fixed - this failed to initialize the red channel and accidentally
+    initialized the alpha channel twice.
+  Changed png_struct jmp_buf member name from png_jmpbuf to tmp_jmpbuf to
+    avoid a clash with the png_jmpbuf macro on some platforms.
+  Added appropriate feature test macros to ensure libpng sees the correct API
+   _POSIX_SOURCE is defined in pngpriv.h, pngtest.c and pngvalid.c to ensure
+    that POSIX conformant systems disable non-POSIX APIs.  _ISOC99_SOURCE is
+    defined in pngpriv.h to obtain the ISO C99 snprintf definition, when
+    available.
+  Removed png_snprintf and added formatted warning messages.  This change adds
+    internal APIs to allow png_warning messages to have parameters without
+    requiring the host OS to implement snprintf.  As a side effect the
+    dependency of the tIME-supporting RFC1132 code on stdio is removed and
+    PNG_NO_WARNINGS does actually work now.
+  Added PNG_WRITE_OPTIMIZE_CMF_SUPPORTED macro to make the zlib "CMF" byte
+    optimization configureable.
+  Internal functions were added to claim/release the z_stream and, hopefully,
+    make the code more robust.  Also deflateEnd checking is added - previously
+    libpng would ignore an error at the end of the stream.
+  Removed the -D_ALL_SOURCE from definitions for AIX in CMakeLists.txt
+  Implemented premultiplied alpha support: png_set_alpha_mode API
+  Added expand_16 support to the high level interface.
+  Added named value and 'flag' gamma support to png_set_gamma.  Made a minor
+    change from the previous (unreleased) ABI/API to hide the exact value used
+    for Macs - it's not a good idea to embed this in the ABI!
+  Moved macro definitions for PNG_HAVE_IHDR, PNG_HAVE_PLTE, and PNG_AFTER_IDAT
+    from pngpriv.h to png.h because they must be visible to applications
+    that call png_set_unknown_chunks().
+  Check for up->location !PNG_AFTER_IDAT when writing unknown chunks
+    before IDAT.
+  Improved "pngvalid --speed" to exclude more of pngvalid from the time.
+  Documented png_set_alpha_mode(), other changes in libpng.3/libpng-manual.txt
+  The cHRM chunk now sets the defaults for png_set_rgb_to_gray() (when negative
+    parameters are supplied by the caller), while in the absence of cHRM
+    sRGB/Rec 709 values are still used.
+  The bKGD chunk no longer overwrites the background value set by
+    png_set_background(), allowing the latter to be used before the file
+    header is read. It never performed any useful function to override
+    the default anyway.
+  Added memory overwrite and palette image checks to pngvalid.c
+    Previously palette image code was poorly checked. Since the transformation
+    code has a special palette path in most cases this was a severe weakness.
+  Minor cleanup and some extra checking in pngrutil.c and pngrtran.c. When
+    expanding an indexed image, always expand to RGBA if transparency is
+    present.
+  Reversed earlier 1.5.3 change of transformation order; move png_expand_16
+    back where it was.  The change doesn't work because it requires 16-bit
+    gamma tables when the code only generates 8-bit ones.  This fails
+    silently; the libpng code just doesn't do any gamma correction.  Moving
+    the tests back leaves the old, inaccurate, 8-bit gamma calculations, but
+    these are clearly better than none!
+  png_set_background() and png_expand_16() did not work together correctly.
+    This problem is present in 1.5.2; if png_set_background is called with
+    need_expand false and the matching 16 bit color libpng erroneously just
+    treats it as an 8-bit color because of where png_do_expand_16 is in the
+    transform list.  This simple fix reduces the supplied colour to 8-bits,
+    so it gets smashed, but this is better than the current behavior.
+  Added tests for expand16, more fixes for palette image tests to pngvalid.
+    Corrects the code for palette image tests and disables attempts to
+    validate palette colors.
+  Fixed uninitialized memory read in png_format_buffer() (Bug report by
+    Frank Busse, related to CVE-2004-0421).
+  Fixed png_handle_sCAL which is broken in 1.5; added sCAL to pngtest.png
+  Revised documentation about png_set_user_limits() to say that it also affects
+    png writing.
+  Revised handling of png_set_user_limits() so that it can increase the
+    limit beyond the PNG_USER_WIDTH|HEIGHT_MAX; previously it could only
+    reduce it.
+  Make the 16-to-8 scaling accurate. Dividing by 256 with no rounding is
+    wrong (high by one) 25% of the time. Dividing by 257 with rounding is
+    wrong in 128 out of 65536 cases. Getting the right answer all the time
+    without division is easy.
+  Added "_SUPPORTED" to the PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION macro.
+  Added projects/owatcom, an IDE project for OpenWatcom to replace
+    scripts/makefile.watcom.  This project works with OpenWatcom 1.9. The
+    IDE autogenerates appropriate makefiles (libpng.mk) for batch processing.
+    The project is configurable, unlike the Visual Studio project, so long
+    as the developer has an awk.
+  Changed png_set_gAMA to limit the gamma value range so that the inverse
+    of the stored value cannot overflow the fixed point representation,
+    and changed other things OpenWatcom warns about.
+  Revised pngvalid.c to test PNG_ALPHA_MODE_SUPPORTED correctly. This allows
+    pngvalid to build when ALPHA_MODE is not supported, which is required if
+    it is to build on libpng 1.4.
+  Removed string/memory macros that are no longer used and are not
+    necessarily fully supportable, particularly png_strncpy and png_snprintf.
+  Added log option to pngvalid.c and attempted to improve gamma messages.
+  People found the presence of a beta release following an rc release
+    to be confusing; therefore we bump the version to libpng-1.5.4beta01
+    and there will be no libpng-1.5.3 release.
+  Moved definitions of PNG_HAVE_IHDR, PNG_AFTER_IDAT, and PNG_HAVE_PLTE
+    outside of an unknown-chunk block in png.h because they are also
+    needed for other uses.
+  Added png_set_scale_16() API, to match inaccurate results from previous
+    libpng versions, configurable with PNG_READ_SCALE_16_TO_8_SUPPORTED.
+  Fixed a problem in png_do_expand_palette() exposed by optimization in
+    1.5.3beta06
+  Also removed a spurious and confusing "trans" member ("trans") from png_info.
+  The palette expand optimization prevented expansion to an intermediate RGBA
+    form if tRNS was present but alpha was marked to be stripped; this exposed
+    a check for tRNS in png_do_expand_palette() which is inconsistent with the
+    code elsewhere in libpng.
+  Added PNG_TRANSFORM_SCALE_16 to the high-level read transforms.
+  If PNG_READ_16_TO_8_ACCURATE_SCALE is not enabled, png_set_scale_16()
+    and png_do_scale_16_to_8() aren't built.
+  Revised contrib/visupng, gregbook, and pngminim to demonstrate scale_16_to_8
+  Fixed pngvalid, simplified macros, added checking for 0 in sCAL.
+    The ACCURATE scale macro is no longer defined in libpng-1.5 - call the
+    png_scale_16_to_8 API.  Made sure that PNG_READ_16_TO_8 is still defined
+    if the png_strip_16_to_8 API is present.  png_check_fp_number now
+    maintains some state so that positive, negative and zero values are
+    identified.  sCAL uses these to be strictly spec conformant.
+  Define PNG_ALLOCATED to "restrict" only if MSC_VER >= 1400.
+
+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
+
+Glenn R-P
+*/ }
+#endif
 
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