This commit extends the recently added support for tiled tiff images
of color index format to also cover grayscale and mono images. RGB
images were already covered, since the libtiff API used for those
handles tiled images transparently.

This commit also simplifies the tiff read() function by sharing
common code among the different formats.

[ChangeLog][TIFF] Extend support for tiled tiff files to all color formats

Change-Id: I13f94bbca65dd6a35384a415906034e245ad8b79
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>

For color index images, the tiff handler uses scanline based
reading. The tiff decoder does not support that if the image is stored
in tiled format. This commit adds tile based reading for such cases.

[ChangeLog][TIFF] Added support for tiled, color indexed tiff files

Task-number: QTBUG-12636
Change-Id: Ic759903c75c8252267429f01e3dd9706fc516f8f
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>

Change-Id: I69942195d5208985d75333a13ed0ac5ae8f595d2
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>

This commit imports libwebp 0.6.0, including AUTHORS, COPYING, ChangeLog,
NEWS, PATENTS, README and src directories. In src, only includes header
and source files.

Upstream changes since 0.5.1 have been merged in.
Also updated version in qt_attribution.json.

Conflicts:
	src/3rdparty/libwebp.pri
	src/3rdparty/libwebp/qt_attribution.json
	src/3rdparty/libwebp/src/webp/config.h

Change-Id: I001aa7a3fabf0130b54f9005c23aa822bc1d0ec1
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>

Change-Id: I9cf7f04769944935d7b836453c7982839857a909

We need to include qimageiohandler.h if we want to be sure that we can
use it. Also, QT_NO_IMAGEFORMATPLUGIN is defined in a header and needs
to be checked after the includes.

Change-Id: Ic6c376c87abb9684f45ca3d740deb7e580220ae4
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>

Change-Id: I8a8151eb2dd01059cf86da8f72ecb65612bff0c1

Allows multipage TIFF images to be read via QImageReader::jumpToImage
and QImageReader::jumpNextToImage.

[ChangeLog][QtGui][QImageReader] Support multipage TIFF images through
QImageReader

Change-Id: Id6ac68b75500148e51be11eff3d296c929d2d95c
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>

Conflicts:
	.qmake.conf

Change-Id: I519c785ed64bdb0669d884a11d45be6532e629ec

INTEGRITY doesn't have search.h header

Change-Id: I5efe7d8ced37942de85ae810e22e528996e9904f
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
Reviewed-by: Nikola Velinov <nvelinov@ghs.com>

Enabled C99 for INTEGRITY to allow non-constant values for array size

Change-Id: I51978d26a9ec4798eb541dc0a03b633ac9eb426a
Reviewed-by: Nikola Velinov <nvelinov@ghs.com>
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>

Both 'hdr.height' and 'hdr.width' are quint32s. Multiplying them still gives
a quint32, but the lhs expected a qint64.

Fix by casting one of the operands to qint64.

Coverity-Id: 22179
Change-Id: If7385fb42bf994d87ac4e603fa85be4a30ad6d5c
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>

Coverity complained that the 'bytes' variable was first compared to
a QTgaFile::HeaderOffset, then, later, to a QTgaFile::FooterOffset.

This is of course a false positive, but one that's trivial to fix,
by not using a variable in the first place.

Adjust to Qt coding standard as a drive-by.

Coverity-Id: 22048
Change-Id: If1a45aa5b0c8ea23cab2cefeccb2f1dfe5f03375
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>

Change-Id: I4a666fe32a3e346fb03ee42cc85084ce4fc1865c

This commit imports libtiff 4.0.7, including COPYRIGHT, ChangeLog, README,
README.vms, RELEASE-DATE, TODO, VERSION and libtiff, port directories.
In libtiff, only includes SConstruct, libtiff.def, libtiff.map,
libtiffxx.map, tif_config.h-vms, header and source files.
In port, only includes header and source files.

Upstream changes since 4.0.6 have been merged in, includes 701ba023 and
52dd6b1e

. Also updated version in qt_attribution.json.

Conflicts:
	src/3rdparty/libtiff/libtiff/tif_win32.c
	src/3rdparty/libtiff/libtiff/tiffiop.h
	src/3rdparty/libtiff/port/strtoull.c
	src/3rdparty/libtiff/qt_attribution.json

Change-Id: I7a7a55676c007fd2b3eeff2b2e3ca481eb5724d9
Reviewed-by: Liang Qi <liang.qi@qt.io>
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>

This commit imports libwebp 0.5.1, including AUTHORS, COPYING, ChangeLog,
NEWS, PATENTS, README and src directories. In src, only includes header
and source files.

Upstream changes since 0.5.0 have been merged in.
Also updated version in qt_attribution.json.

Conflicts:
	src/3rdparty/libwebp.pri
	src/3rdparty/libwebp/qt_attribution.json
	src/3rdparty/libwebp/src/webp/config.h

Change-Id: I7d0c15400154c3b4ee8ff37665303307c4b84f9f
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>

Change-Id: Iad8edc1ce474907a017d2751650a447280e68aaa
Reviewed-by: Antti Kokko <antti.kokko@qt.io>

Change-Id: I30c0190e8ec28d18b1f803ebd16b0139b044089f

QImageIOPlugin::keys() was removed in Qt 5.0 by
c9d040c1f5b0ee0ddd37e924576ec3bbd990f2ed in qtbase.

Change-Id: Ifda96e4764aa82d6f608d9ee2e29bac554603705
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>

Change-Id: I12f79f8fecdd03e4e6d4ce76e49d3c2d91003676
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>

The 'override' specifier can be used directly since Qt 5.7.

Change-Id: I673d4a3028132318dc5e686100476a8758984f0d
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>

Change-Id: I6c1caae4b071cac4caf88bf85582a2a76a1ccd2b

Conflicts:
	src/plugins/imageformats/webp/qwebphandler.cpp

Change-Id: I494e140819746c83e586bea72d8b02a7d245d970

the CI obtains them from the qt5 super repo nowadays.

Change-Id: Iec8d6adc5dc8d0c3d9f4c369d901e0352bd746f1
Reviewed-by: Liang Qi <liang.qi@qt.io>

The code tries to expand a 16-bit value of the form 0bABBBBBGGGGGRRRRR
into a 32-bit QRgb, but got the operator precedence wrong:

  << has higher precedence than binary &

This made the first operand of the |-chain (BBBBB) unconditionally
zero.  The second operand had the same precedence problem, but didn't
decay into a tautological value like the first one did.

Fix by adding another set of parentheses.

The test coverage for this security-relevant piece of code is quite
obviously insufficient, and should be increased, or else the format be
dropped.

[ChangeLog][TGA] Fixed reading of TGA-16 formats.

Coverity-Id: 21782
Change-Id: I7019be8fe22e480c40192e0c1916b1d2bebf71cc
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>

Coverity complained about uninitialised members of m_features in
QWebpHandler, and m_header and m_header10 in QDDSHandler, so force
value-initialization, in this case zero-initialization, by explicitly
adding the fields to the ctor-init-list.

Coverity-Id: 21998
Coverity-Id: 22032
Change-Id: Ie45023eda82b7034a0b3e33bab4fb23465cdc7cf
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>

As it stands right now, it's severely bugged and a security minefield (crashes).

It is also pretty useless in combination with QImage: DDS files are supposed to
carry multiple individual textures, texture arrays, cubemaps; mipmap chains;
and may use specific texture compression formats. All these features are not
supported at all by QImage.

[ChangeLog][QtImageFormats] The DDS image plugin has been disabled
due to lack of maintenance.

Change-Id: I6e53b1b14de316389813ddd3e34a644065937b4a
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>

Change-Id: I40e0c61bb296dadc301988dfc36e96c7429a8375

Replace strtoull.c from libtiff with version in qtbase that has
an updated license without advertising clause.

Change-Id: I3ffdb8799adc6ef18c60021d2d2fe222df1c2acd
Reviewed-by: Lars Knoll <lars.knoll@qt.io>

Coverity was clever enough to see that the arguments to qRgba()
were swapped, but too dumb to understand the comment right above.

Fix the warning by explicitly swapping b and r, and then passing
the arguments in the correct order.

Coverity-Id: 22421
Change-Id: I87f98ea2bc8745c85fda5dbf0b03a505866ed4ae
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>

it's not quite clear why it was included.

however, it pulled in CoreGraphics transitively, which now has to be
done explicitly.

Change-Id: I4186f0603360645d81895d850005af01966834c5
Reviewed-by: Jake Petroules <jake.petroules@qt.io>

Use new licensescanner / qt_attribution.json file infrastructure to
generate documentation about 3rdparty licenses.

Change-Id: Ic81d8c33be094e51b6e4ca0f35074136170f491b
Reviewed-by: Topi Reiniö <topi.reinio@theqtcompany.com>

Change-Id: I797cc909dd28e852460554059e27d38ed91d3252

Change-Id: I0116d3ac6a494573b04e3463d3b94ee85784281f

This fixes a linking error on tvOS (though strangely not macOS).

Change-Id: I1f339fefa07ab55bc943aabf895f713e8ef6f6c1
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@theqtcompany.com>

Change-Id: Ic2313cf8a6e938d5885aa1e26c36a5d7d5af166d
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>

Change-Id: I3dabc9d3c5d84693724f3dacc68956f89c17ec9e
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@qt.io>

Conflicts:
	.qmake.conf

Change-Id: Ia6897047e8baf34681acf9512978d26dc00b37c5

While the repository still contains bundled copies of 3rd party codecs
for these formats, they are not part of the build process anymore;
the corresponding plugins are built only when the system libraries
are found.

Change-Id: Ib658b921bd08b63e68886922fc6bc45c5c3cc637
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@qt.io>
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>

Change-Id: Ib70a7624c5047a639b6f156c2bd9a99426b9ad6c