| /* |
| * Copyright 2011, The Android Open Source Project |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "PaintTileOperation.h" |
| #include "LayerAndroid.h" |
| #include "PaintedSurface.h" |
| |
| namespace WebCore { |
| |
| PaintTileOperation::PaintTileOperation(BaseTile* tile, PaintedSurface* surface) |
| : QueuedOperation(QueuedOperation::PaintTile, tile->page()) |
| , m_tile(tile) |
| , m_surface(surface) |
| { |
| if (m_tile) |
| m_tile->setRepaintPending(true); |
| SkSafeRef(m_surface); |
| } |
| |
| PaintTileOperation::~PaintTileOperation() |
| { |
| if (m_tile) { |
| m_tile->setRepaintPending(false); |
| m_tile = 0; |
| } |
| SkSafeUnref(m_surface); |
| } |
| |
| bool PaintTileOperation::operator==(const QueuedOperation* operation) |
| { |
| if (operation->type() != type()) |
| return false; |
| const PaintTileOperation* op = static_cast<const PaintTileOperation*>(operation); |
| return op->m_tile == m_tile; |
| } |
| |
| void PaintTileOperation::run() |
| { |
| if (m_tile) { |
| m_tile->paintBitmap(); |
| m_tile->setRepaintPending(false); |
| m_tile = 0; |
| } |
| } |
| |
| 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; |
| } |
| |
| } |