This change starts using the superior implementation of the scene graph
render loop which has been worked on in the scenegraph-playground
project for a while. It uses a far more straightforward locking/sync
paradigm compared to the existing one and is less deadlock and error
prone. It also enables the scene graph thread to run on its own when
the GUI thread is blocked, enabling threaded animations.

This changes also introduces a naming change inside Qt Quick from
"Window Manager" -> "Render Loop" as that fits better to what the
code does.

Change-Id: I1c2170ee04fcbef79660bd7dae6cace647cdb276
Reviewed-by: Samuel Rødal <samuel.rodal@digia.com>

Task-number: QTBUG-28756

Spurious repetition of the definite article

Doc: corrected trailing space issue.

Change-Id: I95c1c5773dc4b25dd0a3625343a67975783435fd
Reviewed-by: Geir Vattekar <geir.vattekar@digia.com>

Change-Id: I6c3bd7bebe3d62d1cfd0fa6334544c9db8398c76
Reviewed-by: Akseli Salovaara <akseli.salovaara@digia.com>
Reviewed-by: Sergio Ahumada <sergio.ahumada@digia.com>

Change-Id: Ic1299cd8949c37c6909b8d2ab36e930097335a4d
Reviewed-by: Lars Knoll <lars.knoll@digia.com>

Change copyrights and license headers from Nokia to Digia

Change-Id: Ie7f5d49ed8235d7a7845ab68f99ad1c220e64d5c
Reviewed-by: Lars Knoll <lars.knoll@digia.com>

Change-Id: I76f21d055696978f2f6936006eea038dd73cce6c
Reviewed-by: Michael Brasser <michael.brasser@nokia.com>

- Fully qualify names in \qml* commands
- Remove unnecessary 'void' return types in \qmlmethod commands
- Remove unnecessary module and type qualifiers from links
- Document Canvas::onImageLoaded()

Change-Id: I32d1a7a54c407ae98b60857780f5536c6d52fca2
Reviewed-by: Yunqiao Yin <charles.yin@nokia.com>

Change-Id: I9e2dac37d18e3ca62e4a92be25e5c2e60ffeba00
Reviewed-by: Andrew den Exter <andrew.den-exter@nokia.com>

Change-Id: I208c5889be2768673637882e58f43f43ed1f28d9
Reviewed-by: Yunqiao Yin <charles.yin@nokia.com>

1. Use QQuickContext2DRenderThread for Threaded rendering
2. Make FBO target works with all render strategies
3. Remove some unnessary locks, call texture methods by invoking meta calls
4. Run existing tests with all render targets and strategies (except Cooperative)

Change-Id: I0db5c91d848b86bcc1536c30d7a5804b66a817f1
Reviewed-by: Yunqiao Yin <charles.yin@nokia.com>

-To simplify QDoc, \qmlclass is now \qmltype.
-'\instantiates <C+++ class>' is for the types that are defined in C++.

Change-Id: I29242d33daf7b972d8b86a356b9689638866b950
Reviewed-by: Laszlo Papp <lpapp@kde.org>
Reviewed-by: Bea Lam <bea.lam@nokia.com>
Reviewed-by: Martin Smith <martin.smith@nokia.com>

QQuickCanvas is now called QQuickWindow
QQuickCanvas::rootItem is now QQuickWindow::contentItem
QQuickItem::canvas is now QQuickItem::window
QQuickItem::ItemChangeData::canvas is also renamed window
QQuickCanvas::grabFrameBuffer is now QQuickWindow::grabWindow
The functions related to the color property have dropped the clear from
their names.

The first three changes have interim compatibility measures in place to
ease the transition.

Change-Id: Id34e29546a22a74a7ae2ad90ee3a8def6fc541d2
Reviewed-by: Martin Jones <martin.jones@nokia.com>

Change-Id: I179eb828a84af4feb834bac7159d5e1988cc3deb
Reviewed-by: Laszlo Papp <lpapp@kde.org>
Reviewed-by: Alan Alpert <alan.alpert@nokia.com>

-created new groups and converted some overviews into group pages
-edited type documentation and added \ingroup
-articles still need title fixes and link fixes

Groups:
qtquick-visual-types
qtquick-item-graphics
qtquick-shaders
qtquick-canvas
qtquick-text
qtquick-text-validator
qtquick-interaction
qtquick-positioners
qtquick-transformations
qtquick-states
qtquick-animation-define
qtquick-animation-properties
qtquick-animation-control
qtquick-animation-modifiers
qtquick-images-sprites
qtquick-images
qtquick-models
qtquick-containers
qtquick-views
qtquick-paths
qtquick-utility

Task: QTBUG-25685

Change-Id: I81d4df3320bf5daad5cabb5e42408013fb24f464
Reviewed-by: Bea Lam <bea.lam@nokia.com>
Reviewed-by: Alan Alpert <alan.alpert@nokia.com>

1. QQuickPixmap now only store textures instead of QImage data, however
context2d still need to access the QImage in some places, so cache the
loaded images to avoid the expensive GL readback operations.
2. Use texture directly if the render target is FBO.

Change-Id: I6228011e5698fa00f2e3420a3a4a305995b8a238
Reviewed-by: Yunqiao Yin <charles.yin@nokia.com>

1. Create a new gl context if the scenegraph render thread is different with context2d render thread
2. Expose the gl context and window surface from context2d
3. Get the right current gl context before painting

Change-Id: I5e252a8142d760442f9dfb53ed8a8ce289379af9
Reviewed-by: Glenn Watson <glenn.watson@nokia.com>

Change-Id: Id00122fc018cc57f9985163bcdda5d1e036e46d5
Reviewed-by: Michael Brasser <michael.brasser@nokia.com>

Change-Id: Ia084c34ec8f897bdc4a4e4f89f74e6c3dca6c026
Reviewed-by: Michael Brasser <michael.brasser@nokia.com>

Change-Id: I51e75ed17fd3f12e9ba1bb7777b9f611b06b5d1d
Reviewed-by: Michael Brasser <michael.brasser@nokia.com>

-modified \brief
-checked QML modules
-added qml directory to the qdocconf file
-added particles directory to the qdocconf file

Change-Id: I589e32d3106cda37c7fa4d55a941afd9876fc2b2
Reviewed-by: Geir Vattekar <geir.vattekar@nokia.com>

- Fix warnings about truncation from size_t to int (MSVC 2010,
  64bit).
- Remove single character strings.

Change-Id: Iaf4406e4e04d55d2d8b762f3433269868842a6f9
Reviewed-by: Roberto Raggi <roberto.raggi@nokia.com>

Ensure comma between elements (16 missing), single space and curly-
braces around title elements, etc.

Change-Id: I74e5a42e4a7054265c5c8445f8d2e2e6f46d0cf9
Reviewed-by: Casper van Donderen <casper.vandonderen@nokia.com>

Qt::MiterJoin has different behavior with HTML5 context2d spec, fortunately Qt::SvgMiterJoin is the right one.

Change-Id: Ice50c6f92b244a4d39f984510f76146682b02f07
Reviewed-by: Michael Brasser <michael.brasser@nokia.com>

Don't assume it's HSL just because it isn't RGB.

This error was found by GCC's set-but-unused warning.

Change-Id: Ie22e1509892163fccb3868fe8ff7091dc7bf5091
Reviewed-by: Yunqiao Yin <charles.yin@nokia.com>

After calling transform related methods, the current path should be transformed with the same method but in reversal mode.
So that during painting, the painter will apply the CTM to this path again, otherwise path will be transformed twice.

Change-Id: I7e12bdff82dabb408f47152ba07b608872d4093f
Task-number: QTBUG-24988
Reviewed-by: Michael Brasser <michael.brasser@nokia.com>

Change-Id: I5e01cad23066a645c1434ce1463d370733f53e4f
Reviewed-by: Alan Alpert <alan.alpert@nokia.com>

QDoc now has support for Doxygen style commands for italics, bold
and list items. This change applies that change in QDoc to the
actual documentation.

Task-number: QTBUG-24578
Change-Id: I62d203f21df63a95ee236e578b10418fd9680707
Reviewed-by: Jerome Pasion <jerome.pasion@nokia.com>

- Remove sync() - not necessary
- Queue buffer before flush

Change-Id: If7dea8e56a612d241c67a82eae265febc45059a8
Reviewed-by: Yunqiao Yin <charles.yin@nokia.com>

Symbols beginning with QDeclarative are already exported
by the quick1 module.

Users can apply the bin/rename-qtdeclarative-symbols.sh
script to modify client code using the previous names of the
renamed symbols.

Task-number: QTBUG-23737
Change-Id: Ifaa482663767634931e8711a8e9bf6e404859e66
Reviewed-by: Martin Jones <martin.jones@nokia.com>

They are not standard context 2d APIs, and now the same effects can
be implemented by the ShaderEffect/QtGraphicEffects as well, so remove
them from canvas 2d to reduce the duplicated features.

Change-Id: If77ea6794e839a59927a313702aeea2282384844
Reviewed-by: Michael Brasser <michael.brasser@nokia.com>

Refactor Canvas rendering paths to enable different drawing contexts.

Change-Id: If0e00a14baa673fca6b999a787b4e89885bb1e51
Reviewed-by: Yunqiao Yin <charles.yin@nokia.com>

As in the past, to avoid rewriting various autotests that contain
line-number information, an extra blank line has been inserted at the
end of the license text to ensure that this commit does not change the
total number of lines in the license header.

Change-Id: If39bd256b0fa85eba17ea30f8ab87ea27d758908
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>

Replace Nokia contact email address with Qt Project website.

Change-Id: I6a730abc0c396fb545a48b2d6938abedac2e3f1c
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
Reviewed-by: Alan Alpert <alan.alpert@nokia.com>

Update copyright headers from before 2011, and a couple of new ones that
were merged after the previous change to copyright headers.

Change-Id: Ia76e08e2734afa4ef3f1207dbcda5ff3bc81b366
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>

This change moves the QtQuick 2 types and C++ API (including
SceneGraph) to a new module (AKA library), QtQuick.

99% of this change is moving files from src/declarative to
src/quick, and from tests/auto/declarative to
tests/auto/qtquick2.

The loading of QtQuick 2 ("import QtQuick 2.0") is now delegated to
a plugin, src/imports/qtquick2, just like it's done for QtQuick 1.

All tools, examples, and tests that use QtQuick C++ API have gotten
"QT += quick" or "QT += quick-private" added to their .pro file.

A few additional internal QtDeclarative classes had to be exported
(via Q_DECLARATIVE_PRIVATE_EXPORT) since they're needed by the
QtQuick 2 implementation.

The old header locations (e.g. QtDeclarative/qquickitem.h) will
still be supported for some time, but will produce compile-time
warnings. (To avoid the QtQuick implementation using the
compatibility headers (since QtDeclarative's includepath comes
first), a few include statements were modified, e.g. from
"#include <qsgnode...

In order to cleanly support multiple windows we need to not
have the QSGContext reference in QDeclarativeEngine and we
need to be able to have one copy of the texture for each
QSGContext that is not sharing when we have multiple windows.

This also makes it easier to the release graphical resources from
a running application, which is another feature that we want
to eventually implement.

This patch does remove an adaptation feature which is the
decodeToTexture, which seemed like a good idea at the time
but in hindsight has not been used for anything.

Edit: resolved conflict in qquickimage.cpp
Edit: updated QDeclarativePixmap testcase
Edit: updated QQuickImage testcase
Edit: Rebased on top of QDeclarativePixmapCacheChanges

Change-Id: Ifc61dd8158d3f841437d029b6031a91196145517
Reviewed-by: Martin Jones <martin.jones@nokia.com>

1) Delete m_buffer in QQuickContext2D::~QQuickContext2D
2) Add a default ctor for QQuickContext2D::State, although the reset() method is
   always called, but the valgrind still complains the "uninitialized" error, so
   add this to make an explicit initialization.
3) m_item in QQuickContext2DTexture is also not initialized.

Change-Id: Ie6c74136342d7f0ff8dc268d5d6b976c95ff52f1
Reviewed-by: Alan Alpert <alan.alpert@nokia.com>

Change-Id: Iac4bb4a6b1aa4071a239bb25f25f01b71e36868b
Reviewed-by: Alexis Menard <alexis.menard@openbossa.org>
Reviewed-by: Aaron Kennedy <aaron.kennedy@nokia.com>

strtod() uses the locale's decimal point, which for
me is ','. But we want to always use '.' when parsing
color values for Context2D. qstrtod() does that.

This fixes two test failures in qquickcanvasitem.

Change-Id: I2ea58ad328f26903c57c7c80ed95fd24599805f4
Reviewed-by: Charles Yin <charles.yin@nokia.com>

The QSG (SceneGraph) prefix is too generic for
Qt Quick(2)-specific classes.

All the classes and files in the declarative/items
directory have been renamed.

In particular, for classes that are currently public,
the renaming is as follows:

QSGView --> QQuickView
QSGCanvas --> QQuickCanvas
QSGItem --> QQuickItem
QSGPaintedItem --> QQuickPaintedItem

The header files have been renamed accordingly
(e.g. qsgview.h --> qquickview.h).

Change-Id: Iac937fff81db20bb639486a793c3aeb5230b038c
Reviewed-by: Kent Hansen <kent.hansen@nokia.com>