Source/WebCore/html/ImageResizerThread.cpp

/*
 * Copyright (C) 2010 Google Inc. All rights reserved.
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 * in the documentation and/or other materials provided with the
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#include "config.h"
#if ENABLE(IMAGE_RESIZER)

#include "ImageResizerThread.h"

#include "BitmapImage.h"
#include "Image.h"
#include "SharedBuffer.h"
#include <utility>

namespace WebCore {

static void returnBlobOrError(void* callbackInformation)
{
    AsyncImageResizer::CallbackInfo* callbackInfo = static_cast<AsyncImageResizer::CallbackInfo*>(callbackInformation);
    if (!callbackInfo->blob)
        callbackInfo->asyncImageResizer->resizeError();
    else
        callbackInfo->asyncImageResizer->resizeComplete(callbackInfo->blob);
    delete callbackInfo;
}

bool ImageResizerThread::start(PassRefPtr<SharedBuffer> imageData, AsyncImageResizer::CallbackInfo* callbackInfo, AsyncImageResizer::OutputType outputType, IntSize desiredBounds, float quality, AsyncImageResizer::AspectRatioOption aspectRatioOption, AsyncImageResizer::OrientationOption orientationOption)
{
    ImageResizerThread* imageResizerThread = new ImageResizerThread(callbackInfo, outputType, desiredBounds, quality, aspectRatioOption, orientationOption);

    RefPtr<SharedBuffer> copiedImageData = imageData->copy();
    imageResizerThread->m_image = BitmapImage::create();
    imageResizerThread->m_image->setData(copiedImageData, true);

    imageResizerThread->m_threadID = createThread(ImageResizerThread::imageResizerThreadStart, imageResizerThread, "ImageResizerThread");
    return imageResizerThread->m_threadID;
}

ImageResizerThread::ImageResizerThread(AsyncImageResizer::CallbackInfo* callbackInfo, AsyncImageResizer::OutputType outputType, IntSize desiredBounds, float quality, AsyncImageResizer::AspectRatioOption aspectRatioOption, AsyncImageResizer::OrientationOption orientationOption)
    : m_threadID(0)
    , m_callbackInfo(callbackInfo)
    , m_outputType(outputType)
    , m_desiredBounds(desiredBounds)
    , m_quality(quality)
    , m_aspectRatioOption(aspectRatioOption)
    , m_orientationOption(orientationOption)
{
}

ImageResizerThread::~ImageResizerThread()
{
}

void* ImageResizerThread::imageResizerThreadStart(void* thread)
{
    return static_cast<ImageResizerThread*>(thread)->imageResizerThread();
}

void* ImageResizerThread::imageResizerThread()
{
    // FIXME: Do resizing, create blob, and catch any errors.

    callOnMainThread(returnBlobOrError, static_cast<void*>(m_callbackInfo));
    detachThread(m_threadID);
    delete this;
    return 0;
}

} // namespace WebCore

#endif // ENABLE(IMAGE_RESIZER)