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// Copyright (c) 2012 The Chromium 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 UI_GL_GL_FENCE_H_
#define UI_GL_GL_FENCE_H_
#include "base/basictypes.h"
#include "ui/gl/gl_export.h"
namespace gfx {
class GL_EXPORT GLFence {
public:
GLFence();
virtual ~GLFence();
static GLFence* Create();
// Creates a fence that is not guaranteed to signal until the current context
// is flushed. Use with caution.
static GLFence* CreateWithoutFlush();
virtual bool HasCompleted() = 0;
virtual void ClientWait() = 0;
// Will block the server if supported, but might fall back to blocking the
// client.
virtual void ServerWait() = 0;
protected:
static bool IsContextLost();
private:
DISALLOW_COPY_AND_ASSIGN(GLFence);
};
} // namespace gfx
#endif // UI_GL_GL_FENCE_H_
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