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      1 /*
      2  * Copyright (C) 2011 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
     14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
     17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     23  * THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 #include "WebCoreArgumentCoders.h"
     28 
     29 using namespace WebCore;
     30 using namespace WebKit;
     31 
     32 namespace CoreIPC {
     33 
     34 // For now, these are CG-only. Once other platforms have createImage functions,
     35 // we can compile these for non-CG builds.
     36 #if USE(CG)
     37 
     38 void encodeImage(ArgumentEncoder* encoder, Image* image)
     39 {
     40     RefPtr<ShareableBitmap> bitmap = ShareableBitmap::createShareable(image->size(), ShareableBitmap::SupportsAlpha);
     41     bitmap->createGraphicsContext()->drawImage(image, ColorSpaceDeviceRGB, IntPoint());
     42     ShareableBitmap::Handle handle;
     43     bitmap->createHandle(handle);
     44 
     45     encoder->encode(handle);
     46 }
     47 
     48 bool decodeImage(ArgumentDecoder* decoder, RefPtr<Image>& image)
     49 {
     50     ShareableBitmap::Handle handle;
     51     if (!decoder->decode(handle))
     52         return false;
     53 
     54     RefPtr<ShareableBitmap> bitmap = ShareableBitmap::create(handle);
     55     if (!bitmap)
     56         return false;
     57     image = createImage(bitmap.get());
     58     if (!image)
     59         return false;
     60     return true;
     61 }
     62 
     63 #endif
     64 
     65 }
     66