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/*
* Copyright 2010, 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 "TilesProfiler"
#define LOG_NDEBUG 1
#include "config.h"
#include "TilesProfiler.h"
#if USE(ACCELERATED_COMPOSITING)
#include "AndroidLog.h"
#include "Tile.h"
#include "TilesManager.h"
#include <wtf/CurrentTime.h>
// Hard limit on amount of frames (and thus memory) profiling can take
#define MAX_PROF_FRAMES 400
#define INVAL_CODE -2
namespace WebCore {
TilesProfiler::TilesProfiler()
: m_enabled(false)
{
}
void TilesProfiler::start()
{
m_enabled = true;
m_goodTiles = 0;
m_badTiles = 0;
m_records.clear();
m_time = currentTimeMS();
ALOGV("initializing tileprofiling");
}
float TilesProfiler::stop()
{
m_enabled = false;
ALOGV("completed tile profiling, observed %d frames", m_records.size());
return (1.0 * m_goodTiles) / (m_goodTiles + m_badTiles);
}
void TilesProfiler::clear()
{
ALOGV("clearing tile profiling of its %d frames", m_records.size());
m_records.clear();
}
void TilesProfiler::nextFrame(int left, int top, int right, int bottom, float scale)
{
if (!m_enabled || (m_records.size() > MAX_PROF_FRAMES))
return;
double currentTime = currentTimeMS();
double timeDelta = currentTime - m_time;
m_time = currentTime;
#ifdef DEBUG
if (m_records.size() != 0) {
ALOGD("completed tile profiling frame, observed %d tiles. %f ms since last",
m_records[0].size(), timeDelta);
}
#endif // DEBUG
m_records.append(WTF::Vector<TileProfileRecord>());
//first record designates viewport
m_records.last().append(TileProfileRecord(
left, top, right, bottom,
scale, true, (int)(timeDelta * 1000)));
}
void TilesProfiler::nextTile(Tile* tile, float scale, bool inView)
{
if (!m_enabled || (m_records.size() > MAX_PROF_FRAMES) || (m_records.size() == 0))
return;
bool isReady = tile->isTileReady();
int left = tile->x() * TilesManager::tileWidth();
int top = tile->y() * TilesManager::tileWidth();
int right = left + TilesManager::tileWidth();
int bottom = top + TilesManager::tileWidth();
if (inView) {
if (isReady)
m_goodTiles++;
else
m_badTiles++;
}
m_records.last().append(TileProfileRecord(
left, top, right, bottom,
scale, isReady, (int)tile->drawCount()));
ALOGV("adding tile %d %d %d %d, scale %f", left, top, right, bottom, scale);
}
void TilesProfiler::nextInval(const SkIRect& rect, float scale)
{
if (!m_enabled || (m_records.size() > MAX_PROF_FRAMES) || (m_records.size() == 0))
return;
m_records.last().append(TileProfileRecord(
rect.x(), rect.y(),
rect.right(), rect.bottom(), scale, false, INVAL_CODE));
ALOGV("adding inval region %d %d %d %d, scale %f", rect.x(), rect.y(),
rect.right(), rect.bottom(), scale);
}
} // namespace WebCore
#endif // USE(ACCELERATED_COMPOSITING)
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