Besides serving as an example for performing OpenGL rendering inside
a window container in a way that it works across all GL versions,
this is an extremely useful tool for developers and users alike
since it allows quick and easy checking of what sort of context a
particular driver returns for a particular QSurfaceFormat.
NB! Depending on the OpenGL driver, some surprises can be expected.
The handling of core/compatibility profiles, the fwdcompat bit,
the supported GLSL versions, etc. tend to be somewhat different
across the different OpenGL implementations.
Task-number: QTBUG-37071
Change-Id: Iae4328e66cd0bb19f74a77fefef93ea5a3221e31
Reviewed-by: Jørgen Lind <jorgen.lind@digia.com>
Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
This patch ignores:
- Docs for obsolete types themselves
- Comparisons between new and obsolete types
Change-Id: Id9b1e628255113e7c44520abe0f8a4e0db4a283d
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
Task-number: QTBUG-37027
Change-Id: Id18ee9c44650de9c434a82d3d10cf48e6ba9e78c
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@digia.com>
Reviewed-by: Kai Koehne <kai.koehne@digia.com>
The patch introduces a new build configuration on Windows which
can be requested by passing -opengl dynamic to configure.
Platforms other than Windows (including WinRT) are not affected.
The existing Angle and desktop configurations are not affected.
These continue to function as before and Angle remains the default.
In the future, when all modules have added support for the dynamic
path, as described below, the default configuration could be changed
to be the dynamic one. This would allow providing a single set of
binaries in the official builds instead of the current two.
When requesting dynamic GL, Angle is built but QT_OPENGL_ES[_2] are
never defined. Instead, the code path that has traditionally been
desktop GL only becomes the dynamic path that has to do runtime
checks. Qt modules and applications are not linked to opengl32.dll or
libegl/glesv2.dll in this case. Instead, QtGui exports all necessary
egl/egl/gl functions which will, under the hood, forward all requests
to a dynamically loaded EGL/WGL/GL implementation.
Porting guide (better said, changes needed to prepare your code to
work with dynamic GL builds when the fallback to Angle is utilized):
1. In !QT_OPENGL_ES[_2] code branches use QOpenGLFunctions::isES() to
differentiate between desktop and ES where needed. Keep in mind that
it is the desktop GL header (plus qopenglext.h) that is included,
not the GLES one.
QtGui's proxy will handle some differences, for example calling
glClearDepth will route to glClearDepthf when needed. The built-in
eglGetProcAddress is able to retrieve pointers for standard GLES2
functions too so code resolving OpenGL 2 functions will function
in any case.
2. QT_CONFIG will contain "opengl" and "dynamicgl" in dynamic builds,
but never "angle" or "opengles2".
3. The preprocessor define QT_OPENGL_DYNAMIC is also available in
dynamic builds. The usage of this is strongly discouraged and should
not be needed anywhere except for QtGui and the platform plugin.
4. Code in need of the library handle can use
QOpenGLFunctions::platformGLHandle().
The decision on which library to load is currently based on a simple
test that creates a dummy window/context and tries to resolve an
OpenGL 2 function. If this fails, it goes for Angle. This seems to work
well on Win7 PCs for example that do not have proper graphics drivers
providing OpenGL installed but are D3D9 capable using the default drivers.
Setting QT_OPENGL to desktop or angle skips the test and forces
usage of the given GL. There are also two new application attributes
that could be used for the same purpose.
If Angle is requested but the libraries are not present, desktop is
tried. If desktop is requested, or if angle is requested but nothing
works, the EGL/WGL functions will still be callable but will return 0.
This conveniently means that eglInitialize() and such will report a failure.
Debug messages can be enabled by setting QT_OPENGLPROXY_DEBUG. This will
tell which implementation is chosen.
The textures example application is ported to OpenGL 2, the GL 1
code path is removed.
[ChangeLog][QtGui] Qt builds on Windows can now be configured for
dynamic loading of the OpenGL implementation. This can be requested
by passing -opengl dynamic to configure. In this mode no modules will
link to opengl32.dll or Angle's libegl/libglesv2. Instead, QtGui will
dynamically choose between desktop and Angle during the first GL/EGL/WGL
call. This allows deploying applications with a single set of Qt libraries
with the ability of transparently falling back to Angle in case the
opengl32.dll is not suitable, due to missing graphics drivers for example.
Task-number: QTBUG-36483
Change-Id: I716fdebbf60b355b7d9ef57d1e069eef366b4ab9
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Jørgen Lind <jorgen.lind@digia.com>
'styles' are only defined in the qt build internals, when the
examples are compiled inside a configured Qt source. That's not
the case for the examples e.g. in the Qt SDK.
(windows is a default style on all platforms, anyway. So I
think the check is superfluous in the first place.)
Task-number: QTBUG-36655
Change-Id: I7114619efd479408dad99c8514f8e33ddcab7c7c
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
The screenshots were taken on Windows 7 with the Aero theme.
Change-Id: I2517664e25389f4fb87408daec7b720dfb785bf0
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
The screenshots were taken on Windows 7 with the Aero theme.
Change-Id: Ief04c3a9c0084a778606ba72f1f3199119d5c64e
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
Links fixed: Extra Filters
Basic Tools
blockingfortuneclient
Thread Support
Drag and drop examples
qBinaryFind
qmake common project types
imagegestures
Task-number: QTBUG-34749
Change-Id: Ib93dda00716dc596db327fee5b97e110a9f27fa7
Reviewed-by: Martin Smith <martin.smith@digia.com>
the diff -w for this commit is empty.
Started-by: Thiago Macieira <thiago.macieira@intel.com>
Change-Id: I77bb84e71c63ce75e0709e5b94bee18e3ce6ab9e
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Fix some spelling and grammatical errors in comments that show up in Qt documentation. No changes to code.
Change-Id: I2e946fda0bd9a2117f8e9b2fb300df9bf0a98a6c
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
Task-number: QTBUG-34749
Corrected link to drag and drop example.
Corrected link to {mandatory fields}
Created target referring to macros for defining plugins
Change-Id: I387a2d9bab428b2eacd8d371f08c72f42f7e2be2
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
Moved qdoc and image file to correct qdoc folder.
Added brief and ingroup statements to books.qdoc.
Task-number: QTBUG-34749
Change-Id: I5806ffd6f116cccf10238e3e1a9fc627ad0e93a9
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
glViewport expects device pixels, but the various
geometry accessors returns values in device-independent
pixels.
Change-Id: I8004692de82251e4f1f25bf8f2698895f222ede3
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
For the conflicts in msvc_nmake.cpp the ifdefs are extended since we
need to support windows phone in the target branch while it is not there
in the current stable branch (as of Qt 5.2).
Conflicts:
configure
qmake/generators/win32/msvc_nmake.cpp
src/3rdparty/angle/src/libEGL/Surface.cpp
src/angle/src/common/common.pri
src/corelib/global/qglobal.h
src/corelib/io/qstandardpaths.cpp
src/plugins/platforms/qnx/qqnxintegration.cpp
src/plugins/platforms/qnx/qqnxscreeneventhandler.h
src/plugins/platforms/xcb/qglxintegration.h
src/widgets/kernel/win.pri
tests/auto/corelib/thread/qreadwritelock/tst_qreadwritelock.cpp
tests/auto/corelib/tools/qdatetime/tst_qdatetime.cpp
tests/auto/gui/text/qtextdocument/tst_qtextdocument.cpp
tools/configure/configureapp.cpp
Change-Id: I00b579eefebaf61d26ab9b00046d2b5bd5958812
Updated dnslookup example to take an optional nameserver argument
for doing DNS lookup against a specific nameserver.
Task-number: QTBUG-30166
Change-Id: I9f46f9f766b56f770d2c8372e3bfad5c71023c73
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
- Example 3 (Clock) is a collection of anti-patterns.
- It implements a slot in a QThread subclass and then forces the new
thread to use Qt::DirectConnection to invoke the slot in the
"wrong" thread.
- It talks about getting away with non-thread-safe usage
- It uses a thread as a timer and then admits that it's an over-
complicated approach.
- Example 4 (Permanent Thread) is over-complicated yet incomplete. A
better one exists in the QThread class ref.
- Example 1 (Thread Pool) is covered by the QThreadPool class ref.
- Example 2 (QtConcurrent::run()) is covered in the "Threading and
Concurrent Programming Examples" page and the "QtConcurrentRun" page.
- The undocumented "Hello Thread" example is covered in the QThread
class ref.
- These examples cannot be accessed from Qt Creator's Examples tool.
- These examples are neither widget-related nor tutorials, contrary to
their source paths.
Task-number: QTBUG-33360
Change-Id: Ic79cb764ee925ddbcbeafee8e1d01db7fe0f6cfe
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
[ChangeLog][QtWidgets][QAbstractSpinBox] QTBUG-5142 - This will
allow a group (thousand) separator to be shown in QSpinBox
and QDoubleSpinBox widgets.
Task-number: QTBUG-5142
Change-Id: I2e23f5f83c93bb092a2dbd784e06d17d40d42909
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
The Qt Simulator is no longer supported with Qt 5.
Change-Id: I0f98351d482dd0554ea0754746d56f94ee6bf22f
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
This would be the case in most if not all the real life use cases.
Change-Id: Ib7ebc6dbe471ce50f4bd1df9becba8e9806008e7
Reviewed-by: Morten Johan Sørvig <morten.sorvig@digia.com>
WinRT doesn't support QProcess, so the network-chat example shouldn't be
built there.
Change-Id: I7885a992d3b8baffd5530c694063140535240f07
Reviewed-by: Oliver Wolff <oliver.wolff@digia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Also adds examples/widgets/mac subdir for Mac specific examples,
starting with one for this feature.
Change-Id: I4cc7d84ce3d7562259d6206faa5d6996c2392a3e
Reviewed-by: Liang Qi <liang.qi@digia.com>
