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      1 /*
      2  * Copyright (C) 2010 Google 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 are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include "config.h"
     32 #include "WebImageDecoder.h"
     33 
     34 #include "BMPImageDecoder.h"
     35 #include "ICOImageDecoder.h"
     36 #include "SharedBuffer.h"
     37 #include "WebData.h"
     38 #include "WebImage.h"
     39 #include "WebSize.h"
     40 
     41 #if WEBKIT_USING_SKIA
     42 #include <wtf/OwnPtr.h>
     43 #include <wtf/PassRefPtr.h>
     44 #endif
     45 
     46 using namespace WebCore;
     47 
     48 namespace WebKit {
     49 
     50 void WebImageDecoder::reset()
     51 {
     52     delete m_private;
     53 }
     54 
     55 void WebImageDecoder::init(Type type)
     56 {
     57     switch (type) {
     58     case TypeBMP:
     59         m_private = new BMPImageDecoder(ImageSource::AlphaPremultiplied, ImageSource::GammaAndColorProfileApplied);
     60         break;
     61     case TypeICO:
     62         m_private = new ICOImageDecoder(ImageSource::AlphaPremultiplied, ImageSource::GammaAndColorProfileApplied);
     63         break;
     64     }
     65 }
     66 
     67 void WebImageDecoder::setData(const WebData& data, bool allDataReceived)
     68 {
     69     ASSERT(m_private);
     70     m_private->setData(PassRefPtr<SharedBuffer>(data).get(), allDataReceived);
     71 }
     72 
     73 bool WebImageDecoder::isFailed() const
     74 {
     75     ASSERT(m_private);
     76     return m_private->failed();
     77 }
     78 
     79 bool WebImageDecoder::isSizeAvailable() const
     80 {
     81     ASSERT(m_private);
     82     return m_private->isSizeAvailable();
     83 }
     84 
     85 WebSize WebImageDecoder::size() const
     86 {
     87     ASSERT(m_private);
     88     return m_private->size();
     89 }
     90 
     91 size_t WebImageDecoder::frameCount() const
     92 {
     93     ASSERT(m_private);
     94     return m_private->frameCount();
     95 }
     96 
     97 bool WebImageDecoder::isFrameCompleteAtIndex(int index) const
     98 {
     99     ASSERT(m_private);
    100     ImageFrame* const frameBuffer = m_private->frameBufferAtIndex(index);
    101     if (!frameBuffer)
    102         return false;
    103     return (frameBuffer->status() == ImageFrame::FrameComplete);
    104 }
    105 
    106 WebImage WebImageDecoder::getFrameAtIndex(int index = 0) const
    107 {
    108     ASSERT(m_private);
    109     ImageFrame* const frameBuffer = m_private->frameBufferAtIndex(index);
    110     if (!frameBuffer)
    111         return WebImage();
    112 #if WEBKIT_USING_SKIA
    113     OwnPtr<NativeImageSkia>image(frameBuffer->asNewNativeImage());
    114     return WebImage(*image);
    115 #elif WEBKIT_USING_CG
    116     // FIXME: Implement CG side of this.
    117     return WebImage(frameBuffer->asNewNativeImage());
    118 #endif
    119 }
    120 
    121 } // namespace WebKit
    122