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// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef FLUTTER_FLOW_SURFACE_H_
#define FLUTTER_FLOW_SURFACE_H_
#include <memory>
#include "flutter/common/graphics/gl_context_switch.h"
#include "flutter/flow/embedded_views.h"
#include "flutter/flow/surface_frame.h"
#include "flutter/fml/macros.h"
namespace flutter {
/// Abstract Base Class that represents where we will be rendering content.
class Surface {
public:
Surface();
virtual ~Surface();
virtual bool IsValid() = 0;
virtual std::unique_ptr<SurfaceFrame> AcquireFrame(const SkISize& size) = 0;
virtual SkMatrix GetRootTransformation() const = 0;
virtual GrDirectContext* GetContext() = 0;
virtual std::unique_ptr<GLContextResult> MakeRenderContextCurrent();
virtual bool ClearRenderContext();
virtual bool AllowsDrawingWhenGpuDisabled() const;
private:
FML_DISALLOW_COPY_AND_ASSIGN(Surface);
};
} // namespace flutter
#endif // FLUTTER_FLOW_SURFACE_H_