C++ (Cpp) TiledPage::glWebViewState Examples

Example #1

File: PaintTileOperation.cpp Project: ACSOP/android_external_webkit

int PaintTileOperation::priority()
{
    if (!m_tile)
        return -1;

    int priority = 200000;

    // if scrolling, prioritize the prefetch page, otherwise deprioritize
    TiledPage* page = m_tile->page();
    if (page && page->isPrefetchPage()) {
        if (page->glWebViewState()->isScrolling())
            priority = 0;
        else
            priority = 400000;
    }

    // prioritize higher draw count
    unsigned long long currentDraw = TilesManager::instance()->getDrawGLCount();
    unsigned long long drawDelta = currentDraw - m_tile->drawCount();
    priority += 100000 * (int)std::min(drawDelta, (unsigned long long)1000);

    // prioritize unpainted tiles, within the same drawCount
    if (m_tile->frontTexture())
        priority += 50000;

    // for base tiles, prioritize based on position
    if (!m_tile->isLayerTile()) {
        bool goingDown = m_tile->page()->scrollingDown();
        priority += m_tile->x();

        if (goingDown)
            priority += 100000 - (1 + m_tile->y()) * 1000;
        else
            priority += m_tile->y() * 1000;
    }

    return priority;
}