1 files changed, 87 insertions, 0 deletions
diff --git a/src/Runtime/Source/render/Qt3DSRenderSync.cpp b/src/Runtime/Source/render/Qt3DSRenderSync.cpp
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+++ b/src/Runtime/Source/render/Qt3DSRenderSync.cpp
@@ -0,0 +1,87 @@
+/****************************************************************************
+**
+** Copyright (C) 2008-2012 NVIDIA Corporation.
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt 3D Studio.
+**
+** $QT_BEGIN_LICENSE:GPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 or (at your option) any later version
+** approved by the KDE Free Qt Foundation. The licenses are as published by
+** the Free Software Foundation and appearing in the file LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "render/Qt3DSRenderContext.h"
+#include "render/Qt3DSRenderSync.h"
+#include "render/Qt3DSRenderBaseTypes.h"
+#include "foundation/Qt3DSFoundation.h"
+
+namespace qt3ds {
+namespace render {
+
+    NVRenderSync::NVRenderSync(NVRenderContextImpl &context, NVFoundationBase &fnd)
+        : m_Context(context)
+        , m_Foundation(fnd)
+        , mRefCount(0)
+        , m_Backend(context.GetBackend())
+        , m_SyncHandle(NULL)
+    {
+    }
+
+    NVRenderSync::~NVRenderSync()
+    {
+        if (m_SyncHandle)
+            m_Backend->ReleaseSync(m_SyncHandle);
+    }
+
+    void NVRenderSync::Sync()
+    {
+        // On every sync call we need to create a new sync object
+        // A sync object can only be used once
+
+        // First delete the old object
+        // We can safely do this because it is actually not deleted until
+        // it is unused
+        if (m_SyncHandle)
+            m_Backend->ReleaseSync(m_SyncHandle);
+
+        m_SyncHandle =
+            m_Backend->CreateSync(NVRenderSyncType::GpuCommandsComplete, NVRenderSyncFlags());
+    }
+
+    void NVRenderSync::Wait()
+    {
+        // wait until the sync object is signaled or a timeout happens
+        if (m_SyncHandle)
+            m_Backend->WaitSync(m_SyncHandle, NVRenderCommandFlushFlags(), 0);
+    }
+
+    NVRenderSync *NVRenderSync::Create(NVRenderContextImpl &context)
+    {
+        if (!context.IsCommandSyncSupported())
+            return NULL;
+
+        NVRenderSync *retval = QT3DS_NEW(context.GetFoundation().getAllocator(),
+                                      NVRenderSync)(context, context.GetFoundation());
+
+        return retval;
+    }
+}
+}