Source/WebKit2/Shared/WebCoreArgumentCoders.cpp

/*
 * Copyright (C) 2011 Apple 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. AND ITS 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 APPLE INC. OR ITS 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 "WebCoreArgumentCoders.h"

using namespace WebCore;
using namespace WebKit;

namespace CoreIPC {

// For now, these are CG-only. Once other platforms have createImage functions,
// we can compile these for non-CG builds.
#if USE(CG)

void encodeImage(ArgumentEncoder* encoder, Image* image)
{
    RefPtr<ShareableBitmap> bitmap = ShareableBitmap::createShareable(image->size(), ShareableBitmap::SupportsAlpha);
    bitmap->createGraphicsContext()->drawImage(image, ColorSpaceDeviceRGB, IntPoint());
    ShareableBitmap::Handle handle;
    bitmap->createHandle(handle);

    encoder->encode(handle);
}

bool decodeImage(ArgumentDecoder* decoder, RefPtr<Image>& image)
{
    ShareableBitmap::Handle handle;
    if (!decoder->decode(handle))
        return false;
    
    RefPtr<ShareableBitmap> bitmap = ShareableBitmap::create(handle);
    if (!bitmap)
        return false;
    image = createImage(bitmap.get());
    if (!image)
        return false;
    return true;
}
    
#endif

}