Use RGBA8888 format to simplify TIFF writing

We write TIFF files using big-endian RGBA, by using the RGBA8888 QImage
format we can remove the manual conversion done in qtiffhandler.

Change-Id: I4a7f4810ce4332d1608813d9cd6371bc13d94df0
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Ivan Komissarov <ABBAPOH@gmail.com>
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Add JPEG 2000 plugin.

It is moving from Qt Solutions.

Change-Id: Ie0dc44d258597f871544fa43238528f42628b799
Reviewed-by: Jake Petroules <jake.petroules@petroules.com>
Reviewed-by: Shawn Rutledge <shawn.rutledge@digia.com>
Adding libwebp: Adding clean copy of libwebp 0.4.0

This commit imports libwebp 0.4.0, including AUTHORS, COPYING, ChangeLog,
NEWS, PATENTS, README and src directories. In src, only includes header
and source files.

The patches required to build it in Qt will follow in separate
commit(s).

Task-number: QTBUG-14205
Change-Id: I747918fe2a07716f66cffb795129f7aa5e067759
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Adding libwebp: Patches to libwebp 0.4.0 for Qt usage

Task-number: QTBUG-14205
Change-Id: Id7c3f4d9398b613a18033d8f3f624448f31ce33d
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Added webp image format plugin

Also added auto test and config test.

This plugin was disabled on winrt and android.

[ChangeLog] Added webp image format plugin.

Task-number: QTBUG-14205

Done-with: Liang Qi <liang.qi@digia.com>
Change-Id: I9409e894d7fc1aef9dce4ffdff8bdf483d689774
Reviewed-by: Ivan Komissarov <ABBAPOH@gmail.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Bump module version to 5.4.0

Change-Id: I99032534d75746d28f68bba80bcbda63eac7cb11
Reviewed-by: Sergio Ahumada <sahumada@blackberry.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Add support for reading icon variants in ICNS plugin

Change-Id: I68395ac4e9604d852405643710aa79585974b3e3
Reviewed-by: Ivan Komissarov <ABBAPOH@gmail.com>
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Reviewed-by: Jake Petroules <jake.petroules@petroules.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>