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-rw-r--r--src/gui/kernel/qopenglcontext_p.h7
-rw-r--r--src/gui/opengl/qopenglframebufferobject.cpp5
2 files changed, 11 insertions, 1 deletions
diff --git a/src/gui/kernel/qopenglcontext_p.h b/src/gui/kernel/qopenglcontext_p.h
index 4a746bf12b..7c8c698a7d 100644
--- a/src/gui/kernel/qopenglcontext_p.h
+++ b/src/gui/kernel/qopenglcontext_p.h
@@ -61,6 +61,7 @@ QT_BEGIN_NAMESPACE
class QOpenGLFunctions;
class QOpenGLContext;
+class QOpenGLFramebufferObject;
class QOpenGLMultiGroupSharedResource;
class Q_GUI_EXPORT QOpenGLSharedResource
@@ -204,6 +205,7 @@ public:
, workaround_missingPrecisionQualifiers(false)
, active_engine(0)
, qgl_current_fbo_invalid(false)
+ , qgl_current_fbo(Q_NULLPTR)
, defaultFboRedirect(0)
{
requestedFormat = QSurfaceFormat::defaultFormat();
@@ -242,6 +244,11 @@ public:
bool qgl_current_fbo_invalid;
+ // Set and unset in QOpenGLFramebufferObject::bind()/unbind().
+ // (Only meaningful for QOGLFBO since an FBO might be bound by other means)
+ // Saves us from querying the driver for the current FBO in most paths.
+ QOpenGLFramebufferObject *qgl_current_fbo;
+
QVariant nativeHandle;
GLuint defaultFboRedirect;
diff --git a/src/gui/opengl/qopenglframebufferobject.cpp b/src/gui/opengl/qopenglframebufferobject.cpp
index 6fc18b1d01..1ee90a0827 100644
--- a/src/gui/opengl/qopenglframebufferobject.cpp
+++ b/src/gui/opengl/qopenglframebufferobject.cpp
@@ -1068,6 +1068,7 @@ bool QOpenGLFramebufferObject::bind()
d->funcs.glBindFramebuffer(GL_FRAMEBUFFER, d->fbo());
QOpenGLContextPrivate::get(current)->qgl_current_fbo_invalid = true;
+ QOpenGLContextPrivate::get(current)->qgl_current_fbo = this;
if (d->format.samples() == 0) {
// Create new textures to replace the ones stolen via takeTexture().
@@ -1107,7 +1108,9 @@ bool QOpenGLFramebufferObject::release()
if (current) {
d->funcs.glBindFramebuffer(GL_FRAMEBUFFER, current->defaultFramebufferObject());
- QOpenGLContextPrivate::get(current)->qgl_current_fbo_invalid = true;
+ QOpenGLContextPrivate *contextPrv = QOpenGLContextPrivate::get(current);
+ contextPrv->qgl_current_fbo_invalid = true;
+ contextPrv->qgl_current_fbo = Q_NULLPTR;
}
return true;