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/*
* 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.
*/
#define LOG_TAG "PaintTileOperation"
#define LOG_NDEBUG 1
#include "config.h"
#include "PaintTileOperation.h"
#include "AndroidLog.h"
#include "GLWebViewState.h"
#include "ImageTexture.h"
#include "ImagesManager.h"
#include "LayerAndroid.h"
#include "TilesManager.h"
namespace WebCore {
PaintTileOperation::PaintTileOperation(Tile* tile, TilePainter* painter,
GLWebViewState* state, bool isLowResPrefetch)
: m_tile(tile)
, m_painter(painter)
, m_state(state)
, m_isLowResPrefetch(isLowResPrefetch)
{
if (m_tile)
m_tile->setRepaintPending(true);
SkSafeRef(m_painter);
}
PaintTileOperation::~PaintTileOperation()
{
if (m_tile) {
m_tile->setRepaintPending(false);
m_tile = 0;
}
if (m_painter && m_painter->type() == TilePainter::Image) {
ImageTexture* image = static_cast<ImageTexture*>(m_painter);
ImagesManager::instance()->releaseImage(image->imageCRC());
} else {
SkSafeUnref(m_painter);
}
}
bool PaintTileOperation::operator==(const QueuedOperation* operation)
{
const PaintTileOperation* op = static_cast<const PaintTileOperation*>(operation);
return op->m_tile == m_tile;
}
void PaintTileOperation::run()
{
TRACE_METHOD();
if (m_tile) {
m_tile->paintBitmap(m_painter);
m_tile->setRepaintPending(false);
m_tile = 0;
}
}
int PaintTileOperation::priority()
{
if (!m_tile)
return -1;
int priority = 200000;
// prioritize low res while scrolling
if (m_isLowResPrefetch)
priority = m_state->isScrolling() ? 0 : 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_state->goingDown();
priority += m_tile->x();
if (goingDown)
priority += 100000 - (1 + m_tile->y()) * 1000;
else
priority += m_tile->y() * 1000;
}
return priority;
}
void PaintTileOperation::updatePainter(TilePainter* painter)
{
if (m_painter == painter)
return;
SkSafeRef(painter);
SkSafeUnref(m_painter);
m_painter = painter;
}
}
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