/*

 * Copyright (c) 2010, Google Inc. All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions are

 * met:

 *     * Redistributions of source code must retain the above copyright

 * notice, this list of conditions and the following disclaimer.

 *     * Redistributions in binary form must reproduce the above

 * copyright notice, this list of conditions and the following disclaimer

 * in the documentation and/or other materials provided with the

 * distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

#ifndef WebGLContextAttributes_h

#define WebGLContextAttributes_h

#include "CanvasContextAttributes.h"

#include "GraphicsContext3D.h"

#include <wtf/PassRefPtr.h>

namespace WebCore {

class WebGLContextAttributes : public CanvasContextAttributes {

  public:

    virtual ~WebGLContextAttributes();

    // Create a new attributes object

    static PassRefPtr<WebGLContextAttributes> create();

    // Create a new attributes object initialized with preexisting attributes

    static PassRefPtr<WebGLContextAttributes> create(GraphicsContext3D::Attributes attributes);

    // Whether or not the drawing buffer has an alpha channel; default=true

    bool alpha() const;

    void setAlpha(bool alpha);

    // Whether or not the drawing buffer has a depth buffer; default=true

    bool depth() const;

    void setDepth(bool depth);

    // Whether or not the drawing buffer has a stencil buffer; default=true

    bool stencil() const;

    void setStencil(bool stencil);

    // Whether or not the drawing buffer is antialiased; default=true

    bool antialias() const;

    void setAntialias(bool antialias);

    // Whether or not to treat the values in the drawing buffer as

    // though their alpha channel has already been multiplied into the

    // color channels; default=true

    bool premultipliedAlpha() const;

    void setPremultipliedAlpha(bool premultipliedAlpha);

    // Fetches a copy of the attributes stored in this object in a

    // form that can be used to initialize a GraphicsContext3D.

    GraphicsContext3D::Attributes attributes() const;

  protected:

    WebGLContextAttributes();

    WebGLContextAttributes(GraphicsContext3D::Attributes attributes);

  private:

    GraphicsContext3D::Attributes m_attrs;

};

} // namespace WebCore

#endif // WebGLContextAttributes_h