eglfs: Implement nativeResourceFunctionForContext

Add support for a get_egl_context NativeResourceForContextFunction to
the eglfs platform plugin.

Change-Id: I155952797f340dd00ab9864852add4b44d841042
Reviewed-by: Andy Nichols <andy.nichols@digia.com>

2 files changed, 24 insertions, 0 deletions

diff --git a/src/plugins/platforms/eglfs/qeglfsintegration.cpp b/src/plugins/platforms/eglfs/qeglfsintegration.cpp
index cf1503b7f9..33427c45fa 100644
--- a/src/plugins/platforms/eglfs/qeglfsintegration.cpp
+++ b/src/plugins/platforms/eglfs/qeglfsintegration.cpp
@@ -74,6 +74,8 @@
 
 QT_BEGIN_NAMESPACE
 
+static void *eglContextForContext(QOpenGLContext *context);
+
 QEglFSIntegration::QEglFSIntegration()
     : mEventDispatcher(createUnixEventDispatcher()), mFontDb(new QGenericUnixFontDatabase())
 {
@@ -215,6 +217,26 @@ void *QEglFSIntegration::nativeResourceForContext(const QByteArray &resource, QO
     return 0;
 }
 
+QPlatformNativeInterface::NativeResourceForContextFunction QEglFSIntegration::nativeResourceFunctionForContext(const QByteArray &resource)
+{
+    QByteArray lowerCaseResource = resource.toLower();
+    if (lowerCaseResource == "get_egl_context")
+        return NativeResourceForContextFunction(eglContextForContext);
+
+    return 0;
+}
+
+static void *eglContextForContext(QOpenGLContext *context)
+{
+    Q_ASSERT(context);
+
+    QEGLPlatformContext *handle = static_cast<QEGLPlatformContext *>(context->handle());
+    if (!handle)
+        return 0;
+
+    return handle->eglContext();
+}
+
 EGLConfig QEglFSIntegration::chooseConfig(EGLDisplay display, const QSurfaceFormat &format)
 {
     class Chooser : public QEglConfigChooser {
diff --git a/src/plugins/platforms/eglfs/qeglfsintegration.h b/src/plugins/platforms/eglfs/qeglfsintegration.h
index bf044d6919..c01b6db456 100644
--- a/src/plugins/platforms/eglfs/qeglfsintegration.h
+++ b/src/plugins/platforms/eglfs/qeglfsintegration.h
@@ -74,6 +74,8 @@ public:
     void *nativeResourceForIntegration(const QByteArray &resource);
     void *nativeResourceForContext(const QByteArray &resource, QOpenGLContext *context);
 
+    NativeResourceForContextFunction nativeResourceFunctionForContext(const QByteArray &resource) Q_DECL_OVERRIDE;
+
     QPlatformScreen *screen() const { return mScreen; }
     static EGLConfig chooseConfig(EGLDisplay display, const QSurfaceFormat &format);