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// Copyright (c) 2011 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_GFX_GL_GL_SURFACE_OSMESA_H_
#define UI_GFX_GL_GL_SURFACE_OSMESA_H_
#pragma once
#include "base/memory/scoped_ptr.h"
#include "ui/gfx/gl/gl_surface.h"
#include "ui/gfx/size.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 GLSurfaceOSMesa : public GLSurface {
public:
GLSurfaceOSMesa();
virtual ~GLSurfaceOSMesa();
// Resize the back buffer, preserving the old content. Does nothing if the
// size is unchanged.
void Resize(const gfx::Size& new_size);
// Implement GLSurface.
virtual void Destroy();
virtual bool IsOffscreen();
virtual bool SwapBuffers();
virtual gfx::Size GetSize();
virtual void* GetHandle();
private:
gfx::Size size_;
scoped_array<int32> buffer_;
DISALLOW_COPY_AND_ASSIGN(GLSurfaceOSMesa);
};
} // namespace gfx
#endif // UI_GFX_GL_GL_SURFACE_OSMESA_H_
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