コード例 #1
0
void LayerTreeCoordinator::releaseInactiveAtlasesTimerFired(Timer<LayerTreeCoordinator>*)
{
    // We always want to keep one atlas for non-composited content.
    OwnPtr<UpdateAtlas> atlasToKeepAnyway;
    bool foundActiveAtlasForNonCompositedContent = false;
    for (int i = m_updateAtlases.size() - 1;  i >= 0; --i) {
        UpdateAtlas* atlas = m_updateAtlases[i].get();
        if (!atlas->isInUse())
            atlas->addTimeInactive(ReleaseInactiveAtlasesTimerInterval);
        bool usableForNonCompositedContent = atlas->flags() == ShareableBitmap::NoFlags;
        if (atlas->isInactive()) {
            if (!foundActiveAtlasForNonCompositedContent && !atlasToKeepAnyway && usableForNonCompositedContent)
                atlasToKeepAnyway = m_updateAtlases[i].release();
            m_updateAtlases.remove(i);
        } else if (usableForNonCompositedContent)
            foundActiveAtlasForNonCompositedContent = true;
    }

    if (!foundActiveAtlasForNonCompositedContent && atlasToKeepAnyway)
        m_updateAtlases.append(atlasToKeepAnyway.release());

    if (m_updateAtlases.size() <= 1)
        m_releaseInactiveAtlasesTimer.stop();
}
コード例 #2
0
void CompositingCoordinator::releaseInactiveAtlasesTimerFired(Timer<CompositingCoordinator>*)
{
    // We always want to keep one atlas for root contents layer.
    std::unique_ptr<UpdateAtlas> atlasToKeepAnyway;
    bool foundActiveAtlasForRootContentsLayer = false;
    for (int i = m_updateAtlases.size() - 1;  i >= 0; --i) {
        UpdateAtlas* atlas = m_updateAtlases[i].get();
        if (!atlas->isInUse())
            atlas->addTimeInactive(ReleaseInactiveAtlasesTimerInterval);
        bool usableForRootContentsLayer = !atlas->supportsAlpha();
        if (atlas->isInactive()) {
            if (!foundActiveAtlasForRootContentsLayer && !atlasToKeepAnyway && usableForRootContentsLayer)
                atlasToKeepAnyway = std::move(m_updateAtlases[i]);
            m_updateAtlases.remove(i);
        } else if (usableForRootContentsLayer)
            foundActiveAtlasForRootContentsLayer = true;
    }

    if (!foundActiveAtlasForRootContentsLayer && atlasToKeepAnyway)
        m_updateAtlases.append(atlasToKeepAnyway.release());

    if (m_updateAtlases.size() <= 1)
        m_releaseInactiveAtlasesTimer.stop();
}