/*

 * Copyright (C) 2009 Apple Inc. All Rights Reserved.

 * Copyright (C) 2009 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:

 * 1. Redistributions of source code must retain the above copyright

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

 * 2. 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 APPLE INC. ``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 APPLE INC. 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 WebGLGetInfo_h

#define WebGLGetInfo_h

#include "wtf/PassRefPtr.h"

#include "wtf/RefPtr.h"

#include "PlatformString.h"

#include "WebGLBuffer.h"

#include "Float32Array.h"

#include "WebGLFramebuffer.h"

#include "Int32Array.h"

// FIXME: implement WebGLObjectArray

//#include "WebGLObjectArray.h"

#include "WebGLProgram.h"

#include "WebGLRenderbuffer.h"

#include "WebGLTexture.h"

#include "Uint8Array.h"

namespace WebCore {

// A tagged union representing the result of get queries like

// getParameter (encompassing getBooleanv, getIntegerv, getFloatv) and

// similar variants. For reference counted types, increments and

// decrements the reference count of the target object.

class WebGLGetInfo {

public:

    enum Type {

        kTypeBool,

        kTypeBoolArray,

        kTypeFloat,

        kTypeLong,

        kTypeNull,

        kTypeString,

        kTypeUnsignedLong,

        kTypeWebGLBuffer,

        kTypeWebGLFloatArray,

        kTypeWebGLFramebuffer,

        kTypeWebGLIntArray,

        kTypeWebGLObjectArray,

        kTypeWebGLProgram,

        kTypeWebGLRenderbuffer,

        kTypeWebGLTexture,

        kTypeWebGLUnsignedByteArray

    };

    WebGLGetInfo(bool value);

    WebGLGetInfo(const bool* value, int size);

    WebGLGetInfo(float value);

    WebGLGetInfo(long value);

    // Represents the NULL value and type

    WebGLGetInfo();

    WebGLGetInfo(const String& value);

    WebGLGetInfo(unsigned long value);

    WebGLGetInfo(PassRefPtr<WebGLBuffer> value);

    WebGLGetInfo(PassRefPtr<Float32Array> value);

    WebGLGetInfo(PassRefPtr<WebGLFramebuffer> value);

    WebGLGetInfo(PassRefPtr<Int32Array> value);

    // FIXME: implement WebGLObjectArray

    // WebGLGetInfo(PassRefPtr<WebGLObjectArray> value);

    WebGLGetInfo(PassRefPtr<WebGLProgram> value);

    WebGLGetInfo(PassRefPtr<WebGLRenderbuffer> value);

    WebGLGetInfo(PassRefPtr<WebGLTexture> value);

    WebGLGetInfo(PassRefPtr<Uint8Array> value);

    virtual ~WebGLGetInfo();

    Type getType() const;

    bool getBool() const;

    const Vector<bool>& getBoolArray() const;

    float getFloat() const;

    long getLong() const;

    const String& getString() const;

    unsigned long getUnsignedLong() const;

    PassRefPtr<WebGLBuffer> getWebGLBuffer() const;

    PassRefPtr<Float32Array> getWebGLFloatArray() const;

    PassRefPtr<WebGLFramebuffer> getWebGLFramebuffer() const;

    PassRefPtr<Int32Array> getWebGLIntArray() const;

    // FIXME: implement WebGLObjectArray

    // PassRefPtr<WebGLObjectArray> getWebGLObjectArray() const;

    PassRefPtr<WebGLProgram> getWebGLProgram() const;

    PassRefPtr<WebGLRenderbuffer> getWebGLRenderbuffer() const;

    PassRefPtr<WebGLTexture> getWebGLTexture() const;

    PassRefPtr<Uint8Array> getWebGLUnsignedByteArray() const;

private:

    Type m_type;

    bool m_bool;

    Vector<bool> m_boolArray;

    float m_float;

    long m_long;

    String m_string;

    unsigned long m_unsignedLong;

    RefPtr<WebGLBuffer> m_webglBuffer;

    RefPtr<Float32Array> m_webglFloatArray;

    RefPtr<WebGLFramebuffer> m_webglFramebuffer;

    RefPtr<Int32Array> m_webglIntArray;

    // FIXME: implement WebGLObjectArray

    // RefPtr<WebGLObjectArray> m_webglObjectArray;

    RefPtr<WebGLProgram> m_webglProgram;

    RefPtr<WebGLRenderbuffer> m_webglRenderbuffer;

    RefPtr<WebGLTexture> m_webglTexture;

    RefPtr<Uint8Array> m_webglUnsignedByteArray;

};

} // namespace WebCore

#endif  // WebGLGetInfo_h