diff options
Diffstat (limited to 'src/gui/rhi/qrhigles2.cpp')
| -rw-r--r-- | src/gui/rhi/qrhigles2.cpp | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/src/gui/rhi/qrhigles2.cpp b/src/gui/rhi/qrhigles2.cpp index cbafa95f5d..6dae48e6a1 100644 --- a/src/gui/rhi/qrhigles2.cpp +++ b/src/gui/rhi/qrhigles2.cpp @@ -68,9 +68,10 @@ QT_BEGIN_NAMESPACE \inmodule QtGui \brief OpenGL specific initialization parameters. - An OpenGL-based QRhi needs an already created QOffscreenSurface at minimum. - Additionally, while optional, it is recommended that the QWindow the first - QRhiSwapChain will target is passed in as well. + An OpenGL-based QRhi needs an already created QSurface that can be used in + combination with QOpenGLContext. Most commonly, this is a QOffscreenSurface + in practice. Additionally, while optional, it is recommended that the QWindow + the first QRhiSwapChain will target is passed in as well. \badcode QOffscreenSurface *fallbackSurface = QRhiGles2InitParams::newFallbackSurface(); @@ -98,10 +99,10 @@ QT_BEGIN_NAMESPACE adjustedFormat() to query the effective format that is passed to QOpenGLContext::setFormat() internally. - A QOffscreenSurface has to be specified in \l fallbackSurface. In order to - prevent mistakes in threaded situations, this is never created - automatically by the QRhi since, like QWindow, QOffscreenSurface can only - be created on the gui/main thread. + A QSurface has to be specified in \l fallbackSurface. In order to prevent + mistakes in threaded situations, this is never created automatically by the + QRhi because, like QWindow, instances of QSurface subclasses can often be + created on the gui/main thread only. As a convenience, applications can use newFallbackSurface() which creates and returns a QOffscreenSurface that is compatible with the QOpenGLContext |