1 files changed, 91 insertions, 0 deletions
diff --git a/src/render/backends/gl/Qt3DSRenderContextGL.cpp b/src/render/backends/gl/Qt3DSRenderContextGL.cpp
new file mode 100644
index 0000000..88670ef
--- /dev/null
+++ b/src/render/backends/gl/Qt3DSRenderContextGL.cpp
@@ -0,0 +1,91 @@
+/****************************************************************************
+**
+** 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 "foundation/Qt3DSMat44.h"
+#include "render/Qt3DSRenderContext.h"
+#include "foundation/Utils.h"
+#include "EASTL/set.h"
+#include "EASTL/utility.h"
+#include "render/Qt3DSRenderShaderProgram.h"
+
+using namespace qt3ds;
+using namespace qt3ds::render;
+using namespace eastl;
+
+namespace qt3ds {
+namespace render {
+
+    NVRenderContext &NVRenderContext::CreateGL(NVFoundationBase &foundation,
+                                               IStringTable &inStringTable,
+                                               const QSurfaceFormat &format)
+    {
+        NVRenderContext *retval = NULL;
+
+        QT3DS_ASSERT(format.majorVersion() >= 2);
+
+        // create backend
+        NVScopedRefCounted<IStringTable> theStringTable(inStringTable);
+        NVScopedRefCounted<NVRenderBackend> theBackend;
+        bool isES = format.renderableType() == QSurfaceFormat::OpenGLES;
+        if (isES && (format.majorVersion() == 2
+                     || (format.majorVersion() == 3 && format.minorVersion() == 0))) {
+            theBackend = QT3DS_NEW(foundation.getAllocator(), NVRenderBackendGLES2Impl)(foundation,
+                                                                                   *theStringTable,
+                                                                                   format);
+        } else if (format.majorVersion() == 3 && format.minorVersion() >= 1 && !isES) {
+            theBackend = QT3DS_NEW(foundation.getAllocator(), NVRenderBackendGL3Impl)(foundation,
+                                                                                   *theStringTable,
+                                                                                   format);
+        } else if (format.majorVersion() == 4
+            || (isES && format.majorVersion() == 3 && format.minorVersion() >= 1)) {
+#ifdef Q_OS_MACOS
+            // TODO: macOS crashes with glTextStorage2DMultisample, so fall back to OpenGL3
+            // for now (QT3DS-590)
+            theBackend = QT3DS_NEW(foundation.getAllocator(), NVRenderBackendGL3Impl)(foundation,
+                                                                                   *theStringTable,
+                                                                                   format);
+#else
+            theBackend = QT3DS_NEW(foundation.getAllocator(), NVRenderBackendGL4Impl)(foundation,
+                                                                                   *theStringTable,
+                                                                                   format);
+#endif
+        } else {
+            QT3DS_ASSERT(false);
+            qCCritical(INTERNAL_ERROR) << "Can't find a suitable OpenGL version for" << format;
+        }
+
+
+        retval = QT3DS_NEW(foundation.getAllocator(), NVRenderContextImpl)(foundation, *theBackend,
+                                                                        *theStringTable);
+
+        return *retval;
+    }
+}
+}