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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_SURFACE_OSMESA_H_
#define UI_GL_GL_SURFACE_OSMESA_H_
#include "base/memory/scoped_ptr.h"
#include "ui/gfx/size.h"
#include "ui/gl/gl_surface.h"
namespace gfx {
// A surface that the Mesa software renderer draws to. This is actually just a
// buffer in system memory. GetHandle returns a pointer to the buffer. These
// surfaces can be resized and resizing preserves the contents.
class GL_EXPORT GLSurfaceOSMesa : public GLSurface {
public:
GLSurfaceOSMesa(unsigned format, const gfx::Size& size);
// Implement GLSurface.
virtual bool Initialize() OVERRIDE;
virtual void Destroy() OVERRIDE;
virtual bool Resize(const gfx::Size& new_size) OVERRIDE;
virtual bool IsOffscreen() OVERRIDE;
virtual bool SwapBuffers() OVERRIDE;
virtual gfx::Size GetSize() OVERRIDE;
virtual void* GetHandle() OVERRIDE;
virtual unsigned GetFormat() OVERRIDE;
protected:
virtual ~GLSurfaceOSMesa();
private:
unsigned format_;
gfx::Size size_;
scoped_ptr<int32[]> buffer_;
DISALLOW_COPY_AND_ASSIGN(GLSurfaceOSMesa);
};
} // namespace gfx
#endif // UI_GL_GL_SURFACE_OSMESA_H_
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