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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 #if ENABLE(IMAGE_RESIZER)
     33 
     34 #include "ImageResizerThread.h"
     35 
     36 #include "BitmapImage.h"
     37 #include "Image.h"
     38 #include "SharedBuffer.h"
     39 #include <utility>
     40 
     41 namespace WebCore {
     42 
     43 static void returnBlobOrError(void* callbackInformation)
     44 {
     45     AsyncImageResizer::CallbackInfo* callbackInfo = static_cast<AsyncImageResizer::CallbackInfo*>(callbackInformation);
     46     if (!callbackInfo->blob)
     47         callbackInfo->asyncImageResizer->resizeError();
     48     else
     49         callbackInfo->asyncImageResizer->resizeComplete(callbackInfo->blob);
     50     delete callbackInfo;
     51 }
     52 
     53 bool ImageResizerThread::start(PassRefPtr<SharedBuffer> imageData, AsyncImageResizer::CallbackInfo* callbackInfo, AsyncImageResizer::OutputType outputType, IntSize desiredBounds, float quality, AsyncImageResizer::AspectRatioOption aspectRatioOption, AsyncImageResizer::OrientationOption orientationOption)
     54 {
     55     ImageResizerThread* imageResizerThread = new ImageResizerThread(callbackInfo, outputType, desiredBounds, quality, aspectRatioOption, orientationOption);
     56 
     57     RefPtr<SharedBuffer> copiedImageData = imageData->copy();
     58     imageResizerThread->m_image = BitmapImage::create();
     59     imageResizerThread->m_image->setData(copiedImageData, true);
     60 
     61     imageResizerThread->m_threadID = createThread(ImageResizerThread::imageResizerThreadStart, imageResizerThread, "ImageResizerThread");
     62     return imageResizerThread->m_threadID;
     63 }
     64 
     65 ImageResizerThread::ImageResizerThread(AsyncImageResizer::CallbackInfo* callbackInfo, AsyncImageResizer::OutputType outputType, IntSize desiredBounds, float quality, AsyncImageResizer::AspectRatioOption aspectRatioOption, AsyncImageResizer::OrientationOption orientationOption)
     66     : m_threadID(0)
     67     , m_callbackInfo(callbackInfo)
     68     , m_outputType(outputType)
     69     , m_desiredBounds(desiredBounds)
     70     , m_quality(quality)
     71     , m_aspectRatioOption(aspectRatioOption)
     72     , m_orientationOption(orientationOption)
     73 {
     74 }
     75 
     76 ImageResizerThread::~ImageResizerThread()
     77 {
     78 }
     79 
     80 void* ImageResizerThread::imageResizerThreadStart(void* thread)
     81 {
     82     return static_cast<ImageResizerThread*>(thread)->imageResizerThread();
     83 }
     84 
     85 void* ImageResizerThread::imageResizerThread()
     86 {
     87     // FIXME: Do resizing, create blob, and catch any errors.
     88 
     89     callOnMainThread(returnBlobOrError, static_cast<void*>(m_callbackInfo));
     90     detachThread(m_threadID);
     91     delete this;
     92     return 0;
     93 }
     94 
     95 } // namespace WebCore
     96 
     97 #endif // ENABLE(IMAGE_RESIZER)
     98