/*

 * 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.

 *     * Neither the name of Google Inc. nor the names of its

 * contributors may be used to endorse or promote products derived from

 * this software without specific prior written permission.

 *

 * 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.

 */

#include "config.h"

#include "WebImageDecoder.h"

#include "BMPImageDecoder.h"

#include "ICOImageDecoder.h"

#include "SharedBuffer.h"

#include "WebData.h"

#include "WebImage.h"

#include "WebSize.h"

#if WEBKIT_USING_SKIA

#include <wtf/OwnPtr.h>

#include <wtf/PassRefPtr.h>

#endif

using namespace WebCore;

namespace WebKit {

void WebImageDecoder::reset()

{

    delete m_private;

}

void WebImageDecoder::init(Type type)

{

    switch (type) {

    case TypeBMP:

        m_private = new BMPImageDecoder();

        break;

    case TypeICO:

        m_private = new ICOImageDecoder();

        break;

    }

}

void WebImageDecoder::setData(const WebData& data, bool allDataReceived)

{

    ASSERT(m_private);

    m_private->setData(PassRefPtr<SharedBuffer>(data).get(), allDataReceived);

}

bool WebImageDecoder::isFailed() const

{

    ASSERT(m_private);

    return m_private->failed();

}

bool WebImageDecoder::isSizeAvailable() const

{

    ASSERT(m_private);

    return m_private->isSizeAvailable();

}

WebSize WebImageDecoder::size() const

{

    ASSERT(m_private);

    return m_private->size();

}

size_t WebImageDecoder::frameCount() const

{

    ASSERT(m_private);

    return m_private->frameCount();

}

bool WebImageDecoder::isFrameCompleteAtIndex(int index) const

{

    ASSERT(m_private);

    RGBA32Buffer* const frameBuffer = m_private->frameBufferAtIndex(index);

    if (!frameBuffer)

        return false;

    return (frameBuffer->status() == RGBA32Buffer::FrameComplete);

}

WebImage WebImageDecoder::getFrameAtIndex(int index = 0) const

{

    ASSERT(m_private);

    RGBA32Buffer* const frameBuffer = m_private->frameBufferAtIndex(index);

    if (!frameBuffer)

        return WebImage();

#if WEBKIT_USING_SKIA

    OwnPtr<NativeImageSkia>image(frameBuffer->asNewNativeImage());

    return WebImage(*image);

#elif WEBKIT_USING_CG

    // FIXME: Implement CG side of this.

    return WebImage(frameBuffer->asNewNativeImage());

#endif

}

} // namespace WebKit