The API is available by including qopenglcontext.h as usual,
but scoped in the QPlatformInterface namespace. The namespace
exposes platform specific type-safe interfaces that provide:
a) Factory functions for adopting native contexts, e.g.
QCocoaGLContext::fromNative(nsContext, shareContext);
b) Access to underlying native handles, e.g.
openGLContext->platformInterface<QCocoaGLContext>->nativeContext()
c) Platform specific functionality, e.g.
static QWGLContext::openGLModuleHandle()
openGLContext->platformInterface<QEGLContext>->doSomething();
The platform interfaces live close to the classes they extend,
removing the need for complex indirection and plumbing, and
avoids kitchen-sink modules and APIs such as the extras modules,
QPlatformFunctions, or QPlatformNativeInterface.
In the case of QOpenGLContext these platform APIs are backed
by the platform plugin, so dynamic_cast is used to ensure the
platform plugin supports the requested interface, but this is
and implementation detail. The interface APIs are agnostic
to where the implementation lives, while still being available
to the user as part of the APIs they extend/augment.
The documentation will be restored when the dust settles.
Task-number: QTBUG-80233
Change-Id: Iac612403383991c4b24064332542a6e4bcbb3293
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
The QT_OPENGL_ES* macros are leftovers from an earlier,
ad hoc configuration system, which has since been
replaced by QT_CONFIG. To clean things up in Qt 6,
we use the new way instead.
Task-number: QTBUG-83467
Change-Id: I578dc7695bff9d5ee303b22e44f60fee22fe0c28
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
The context—which lives in QtGui—now knows nothing about versioned functions.
This changes the public API for getting version functions for a context.
[ChangeLog][QtGui][OpenGL] QOpenGLContext::versionFunctions() has been removed.
QOpenGLVersionFunctionsFactory::get() from the QtOpenGL module should be used
instead.
Previously one would call
context->versionFunctions<QOpenGLFunctions_4_0_Core>();
Which now becomes
QOpenGLVersionFunctionsFactory::get<QOpenGLFunctions_4_0_Core>(context);
The rest of the API should be identical.
Since glgen no longer compiles, and the links to its input (gl.spec and gl.tm)
are dead, I've edited the previously generated files manually. If glgen is
fixed, it should be quite easy to make it generate the new way.
Task-number: QTBUG-74409
Change-Id: I800527e0af16a79005b276eeb74417770193c62f
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
Also moves the openglwindow test to the opengl folder, as it makes use of these
classes.
Task-number: QTBUG-74409
Change-Id: Id9f0013cedcc8bd1e87122c005641d7298525045
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
Adds support for 16bit per color image formats in QImage. This makes it
possible to read and write 16bpc PNGs, and take full advantage of the
16bpc paint engine.
[ChangeLog][QtGui][QImage] QImage now supports 64bit image formats with
16 bits per color channel, compatible with 16bpc PNG or RGBA16 OpenGL
formats.
Task-number: QTBUG-45858
Change-Id: Icd28bd5868a6efcf65cb5bd56031d42941e04099
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
The qWaitFor functions themselves can not trigger a test failure, as that
will not result in the test function exiting early, so every single call
to qWaitFor needs to be wrapped in a QVERIFY.
Change-Id: Id15a1549f31d06cdbf788e1d84ea431c28636ec8
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Remaining uses of Q_NULLPTR are in:
src/corelib/global/qcompilerdetection.h
(definition and documentation of Q_NULLPTR)
tests/manual/qcursor/qcursorhighdpi/main.cpp
(a test executable compilable both under Qt4 and Qt5)
Change-Id: If6b074d91486e9b784138f4514f5c6d072acda9a
Reviewed-by: Ville Voutilainen <ville.voutilainen@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Now set the QImage devicePixelRatio so the content is correct on all
screens.
Task-number: QTBUG-53795
Change-Id: Ic92eee98f691ebb1e0212498c1ae13ede74bca93
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
This change allows painting via QPainter onto a QOpenGLWindow, QOpenGLWidget
or QOpenGLFramebufferObject when an core profile context is in use. This is
important on macOS in particular, where compatibility profiles are not
available, and so the only way to use modern OpenGL is via a core profile
context.
Added core profile compatible shaders with moder GLSL keywords.
The paint engine binds a VAO and two VBOs from now on, whenever VAOs are
supported. Note that this changes behavior also for OpenGL 2.x context that
have VAO support via extensions.
The Lancelot test suite gains support for core profile contexts. This can
be triggered via -coreglbuffer in place of -glbuffer when manually inspecting
via 'lance', while tst_lancelot will automatically run core context-based tests
whenever supported.
Task-number: QTBUG-33535
Change-Id: I6323a7ea2aaa9e111651ebbffd3e40259c8e7a9c
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Previously when a new QOpenGLFramebufferObject was bound, the
QOpenGLContextPrivate::qgl_current_fbo member was also updated to point
to this new object.
But if a user called QOpenGLFramebufferObject::bindDefault(),
qgl_current_fbo was not unset, meaning that if the FBO object would be
deleted at some point, qgl_current_fbo would be a dangling pointer.
This patch makes sure to clear the value of qgl_current_fbo when
bindDefault() is called. It is cleared, and not set to point to another
object because the default platform OpenGL FBO is not backed by a
QOpenGLFramebufferObject.
Task-number: QTBUG-56296
Change-Id: I68b53d8b446660accdf5841df3d168ee2f133a90
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
Change QOpenGLTextureBlitter to be a public API, as it was originally intended.
There are now significant external uses outside qtbase (C++ compositor examples
in QtWayland), and the API is considered proven enough.
[ChangeLog][QtGui] QOpenGLTextureBlitter, a utility class to draw textured quads,
has been made public.
Change-Id: If7a2c94e1494195e2aa375d214932fa7b4c78321
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
From Qt 5.7 -> tools & applications are lisenced under GPL v3 with some
exceptions, see
http://blog.qt.io/blog/2016/01/13/new-agreement-with-the-kde-free-qt-foundation/
Updated license headers to use new GPL-EXCEPT header instead of LGPL21 one
(in those files which will be under GPL 3 with exceptions)
Change-Id: I42a473ddc97101492a60b9287d90979d9eb35ae1
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
Introduce overloads in the API to allow specifying multiple color
attachment sizes and formats. When these are in use and MRT is supported,
a texture or renderbuffer is created for each of GL_COLOR_ATTACHMENT0, 1, 2, ...
[ChangeLog] Added support for multiple render targets in QOpenGLFramebufferObject
Task-number: QTBUG-39235
Change-Id: Ie7cfd81d1b796a9166b80dff7513aafe0120d53d
Reviewed-by: Jørgen Lind <jorgen.lind@theqtcompany.com>
- Replace Q[TRY]_VERIFY(pointer == 0) by Q[TRY]_VERIFY(!pointer).
- Replace Q[TRY]_VERIFY(smartPointer == 0) by
Q[TRY]_VERIFY(smartPointer.isNull()).
- Replace Q[TRY]_VERIFY(a == b) by Q[TRY]_COMPARE(a, b) and
add casts where necessary. The values will then be logged
should a test fail.
Change-Id: I7add5b7afeba83895acdcbed110e8275dc76864a
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
Qt copyrights are now in The Qt Company, so we could update the source
code headers accordingly. In the same go we should also fix the links to
point to qt.io.
Outdated header.LGPL removed (use header.LGPL21 instead)
Old header.LGPL3 renamed to header.LGPL3-COMM to match actual licensing
combination. New header.LGPL-COMM taken in the use file which were
using old header.LGPL3 (src/plugins/platforms/android/extract.cpp)
Added new header.LGPL3 containing Commercial + LGPLv3 + GPLv2 license
combination
Change-Id: I6f49b819a8a20cc4f88b794a8f6726d975e8ffbe
Reviewed-by: Matti Paaso <matti.paaso@theqtcompany.com>
Adds special shaders for the Alpha8 and Grayscale8 formats so that
they do not need to rely on the support of GL_ALPHA and GL_LUMINANCE
that has been removed from core in recent OpenGL versions.
Change-Id: Ie370379b458abf2a50e252bc5099aefc1b11fb1d
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>
QOpenGLBuffer::map() and related helpers are becoming useless in
OpenGL ES 3.0 and up: instead of the old GL_OES_map_buffer,
glMapBufferRange, but not glMapBuffer, is now part of the standard.
On desktop GL_ARB_map_buffer_range is present by default in OpenGL 3.0
and newer.
[ChangeLog][QtGui] Added QOpenGLBuffer::mapBufferRange().
Task-number: QTBUG-38168
Change-Id: I4e9bbe8ced9ee4d535ac32849a8c08c26d79cb49
Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
Add defaultFormat() and setDefaultFormat() statics to QSurfaceFormat.
These define the default values for the requestedFormat members of
QOpenGLContext, QWindow and QOpenGLWidget (and implicitly QOpenGLWindow,
QQuickWindow, etc.)
This replaces QQuickWindow::setDefaultFormat() which can now be removed.
The main inspiration here is not the convenience (avoiding setFormat() calls
for all windows/widgets), but robustness: by setting the format once at the start
of the application, all windows and contexts, including the internal share context
used by QOpenGLWidget and QQuickWidget, will use the same format, eliminating
the possibility of failing due to trying to share between incompatible contexts.
Furthermore, since such a functionality is anyway mandatory for QQuickWindow
(due to the possibility of creating windows from QML code), extending it to
QSurfaceFormat and QOpenGLContext/QWindow is the next logical step.
Change-Id: Ie94486adc489d17fecfcebb7050fecedffd2688b
Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
This patch adds support for binding RGB30 images as textures, and as
internal format of framebuffer objects. Together with the
QOpenGLPaintDevice
this provides support for rendering to and from RGB30 in full precision.
[ChangeLog][QtGui][QOpenGLFramebufferObject] Support 10-bit per color
channels formats as the internal framebuffer format, making it possible
to render in that precision.
Change-Id: I06de2d12dfe1c1adc466d574fdffbc77f88f4f16
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>
This is trickier than the GLX and EGL implementations due to the
way pixel formats, windows and contexts work. Apart from some
restrictions, it should be fully functional nonetheless.
Add also some proper documentation.
Change-Id: Ia6e3eb1ab2701e439b8621b9092c2b0934ff2151
Reviewed-by: Jørgen Lind <jorgen.lind@digia.com>
Currently QOpenGLTextureCache::bindTexture always convert any uploaded
image to RGBA8888 before uploading. This is quite inefficient when
OpenGL natively supports uploading formats in the original format.
This patch adds support for uploading a few native QImage formats. This
also get the performance of QOpenGLTextureCache::bindTexture on par with
QGLContext::bindTexture.
The texture brush used by QOpenGLPaintEngine is also converted to QImage,
since bindTexture will convert it to QImage anyway, and going over QPixmap
may cause an unnecessary conversion.
[ChangeLog][QtGui][QOpenGLTextureCache] Support uploading common QImage
formats directly to OpenGL when supported.
Change-Id: I828a763126441a98e4547c32ef52dddf7c129a32
Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
There is no guarantee that the OES extension is present and the standard
functions are not required to be dynamically resolvable on ES.
By performing the ARB-style lookup for the suffixless function names we
can also support ES3 compatible contexts on desktop GL.
This also fixes the problem of picking up the APPLE extension functions
instead of ARB when both are available. vaoFuncsType was set to ARB correctly
but the helper has to take the preference of ARB into account too.
Task-number: QTBUG-38168
Change-Id: If7402320e8f96891017674f3c43bc57c4b5d29f3
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
For now only xcb on GLX is supported. Other platforms will follow later.
Add also some missing documentation for the platform OpenGL context factory
functions.
[ChangeLog] QOpenGLContext is now able to adopt existing native contexts.
Task-number: QTBUG-37552
Change-Id: I5dd959f102df178f646b2df5989203b5dc6de376
Reviewed-by: Jørgen Lind <jorgen.lind@digia.com>
Verify that QOpenGLContext works with QWindows that
do not have an explicit size set.
Task-number: QTBUG-35342
Change-Id: I91be7beb0062c5825fc58273c701c396b6423256
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@digia.com>
Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
Add an API that allows to retrieve and detach the texture from the
framebuffer object. The next bind() call will then create and attach a
new texture.
[ChangeLog][QtGui][QOpenGLFramebufferObject] Added takeTexture() for
retrieving and detaching the texture from the framebuffer object.
Task-number: QTBUG-35881
Change-Id: I2cca37f5872c1685b1238047f8b912e6534ab781
Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
If create() or makeCurrent() calls fail, the test should fail fast.
Change-Id: I025c541f94c8eee492cf0e1545bfbb8027eff2a7
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
Inherits QSurface and allows to use OpenGL from an arbitrary thread.
Platform plugins can implement QPlatformOffscreenSurface, otherwise an
invisible QWindow is used by QOffscreenSurface.
This patch includes an implementation of QOffscreenSurface for XCB
and EglFS platform plugins using pbuffers.
Change-Id: I57b4fc1db417331f34826dcfa754b7698782fde4
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Samuel Rødal <samuel.rodal@digia.com>
