Home | History | Annotate | Download | only in web 
      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 "public/web/WebImageDecoder.h"
     33 
     34 #include "platform/SharedBuffer.h"
     35 #include "platform/image-decoders/bmp/BMPImageDecoder.h"
     36 #include "platform/image-decoders/ico/ICOImageDecoder.h"
     37 #include "public/platform/Platform.h"
     38 #include "public/platform/WebData.h"
     39 #include "public/platform/WebImage.h"
     40 #include "public/platform/WebSize.h"
     41 #include "wtf/OwnPtr.h"
     42 #include "wtf/PassOwnPtr.h"
     43 #include "wtf/PassRefPtr.h"
     44 
     45 namespace blink {
     46 
     47 void WebImageDecoder::reset()
     48 {
     49     delete m_private;
     50 }
     51 
     52 void WebImageDecoder::init(Type type)
     53 {
     54     size_t maxDecodedBytes = Platform::current()->maxDecodedImageBytes();
     55 
     56     switch (type) {
     57     case TypeBMP:
     58         m_private = new BMPImageDecoder(ImageSource::AlphaPremultiplied, ImageSource::GammaAndColorProfileApplied, maxDecodedBytes);
     59         break;
     60     case TypeICO:
     61         m_private = new ICOImageDecoder(ImageSource::AlphaPremultiplied, ImageSource::GammaAndColorProfileApplied, maxDecodedBytes);
     62         break;
     63     }
     64 }
     65 
     66 void WebImageDecoder::setData(const WebData& data, bool allDataReceived)
     67 {
     68     ASSERT(m_private);
     69     m_private->setData(PassRefPtr<SharedBuffer>(data).get(), allDataReceived);
     70 }
     71 
     72 bool WebImageDecoder::isFailed() const
     73 {
     74     ASSERT(m_private);
     75     return m_private->failed();
     76 }
     77 
     78 bool WebImageDecoder::isSizeAvailable() const
     79 {
     80     ASSERT(m_private);
     81     return m_private->isSizeAvailable();
     82 }
     83 
     84 WebSize WebImageDecoder::size() const
     85 {
     86     ASSERT(m_private);
     87     return m_private->size();
     88 }
     89 
     90 size_t WebImageDecoder::frameCount() const
     91 {
     92     ASSERT(m_private);
     93     return m_private->frameCount();
     94 }
     95 
     96 bool WebImageDecoder::isFrameCompleteAtIndex(int index) const
     97 {
     98     ASSERT(m_private);
     99     ImageFrame* const frameBuffer = m_private->frameBufferAtIndex(index);
    100     if (!frameBuffer)
    101         return false;
    102     return frameBuffer->status() == ImageFrame::FrameComplete;
    103 }
    104 
    105 WebImage WebImageDecoder::getFrameAtIndex(int index = 0) const
    106 {
    107     ASSERT(m_private);
    108     ImageFrame* const frameBuffer = m_private->frameBufferAtIndex(index);
    109     if (!frameBuffer)
    110         return WebImage();
    111     RefPtr<NativeImageSkia> image = frameBuffer->asNewNativeImage();
    112     return WebImage(image->bitmap());
    113 }
    114 
    115 } // namespace blink
    116