C++ (Cpp) tryToLockCompleteCache Exemples

Exemple #1

Fichier : ImageFrameGenerator.cpp Projet : rgabor-dev/webkitnix

const ScaledImageFragment* ImageFrameGenerator::decodeAndScale(const SkISize& scaledSize)
{
    // Prevents concurrent decode or scale operations on the same image data.
    // Multiple LazyDecodingPixelRefs can call this method at the same time.
    MutexLocker lock(m_decodeMutex);
    if (m_decodeFailedAndEmpty)
        return 0;

    const ScaledImageFragment* cachedImage = 0;

    cachedImage = tryToLockCompleteCache(scaledSize);
    if (cachedImage)
        return cachedImage;

    cachedImage = tryToScale(0, scaledSize);
    if (cachedImage)
        return cachedImage;

    cachedImage = tryToResumeDecodeAndScale(scaledSize);
    if (cachedImage)
        return cachedImage;

    cachedImage = tryToDecodeAndScale(scaledSize);
    if (cachedImage)
        return cachedImage;
    return 0;
}

Exemple #2

Fichier : ImageFrameGenerator.cpp Projet : halton/blink-crosswalk

const ScaledImageFragment* ImageFrameGenerator::decodeAndScale(const SkISize& scaledSize, size_t index)
{
    // Prevents concurrent decode or scale operations on the same image data.
    // Multiple LazyDecodingPixelRefs can call this method at the same time.
    MutexLocker lock(m_decodeMutex);
    if (m_decodeFailedAndEmpty)
        return 0;

    const ScaledImageFragment* cachedImage = 0;

    cachedImage = tryToLockCompleteCache(scaledSize, index);
    if (cachedImage)
        return cachedImage;

    TRACE_EVENT2("webkit", "ImageFrameGenerator::decodeAndScale", "generator", this, "decodeCount", static_cast<int>(m_decodeCount));

    cachedImage = tryToScale(0, scaledSize, index);
    if (cachedImage)
        return cachedImage;

    cachedImage = tryToResumeDecodeAndScale(scaledSize, index);
    if (cachedImage)
        return cachedImage;
    return 0;
}