2 * Copyright 2011, The Android Open Source Project
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27 #include "PaintTileOperation.h"
28 #include "LayerAndroid.h"
29 #include "PaintedSurface.h"
33 PaintTileOperation::PaintTileOperation(BaseTile* tile, PaintedSurface* surface)
34 : QueuedOperation(QueuedOperation::PaintTile, tile->page())
40 m_tile->setRepaintPending(true);
42 m_layer = surface->layer();
47 PaintTileOperation::~PaintTileOperation()
50 m_tile->setRepaintPending(false);
53 SkSafeUnref(m_surface);
57 bool PaintTileOperation::operator==(const QueuedOperation* operation)
59 if (operation->type() != type())
61 const PaintTileOperation* op = static_cast<const PaintTileOperation*>(operation);
62 return op->m_tile == m_tile;
65 void PaintTileOperation::run()
68 m_tile->paintBitmap();
69 m_tile->setRepaintPending(false);
74 int PaintTileOperation::priority()
79 // first, prioritize higher draw count
80 unsigned long long currentDraw = TilesManager::instance()->getDrawGLCount();
81 unsigned long long drawDelta = currentDraw - m_tile->drawCount();
82 int priority = 100000 * (int)std::min(drawDelta, (unsigned long long)1000);
84 // prioritize the prefetch page, if it exists
85 if (!m_tile->page() || !m_tile->page()->isPrefetchPage())
88 // prioritize unpainted tiles, within the same drawCount
89 if (m_tile->frontTexture())
92 // for base tiles, prioritize based on position
93 if (!m_tile->isLayerTile()) {
94 bool goingDown = m_tile->page()->scrollingDown();
95 SkIRect *rect = m_tile->page()->expandedTileBounds();
96 priority += m_tile->x();
99 priority += 100000 - (1 + m_tile->y()) * 1000;
101 priority += m_tile->y() * 1000;