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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.
*/
#include "config.h"
#include "PaintedSurface.h"
#include "LayerAndroid.h"
#include "TilesManager.h"
#include "SkCanvas.h"
#include "SkPicture.h"
#include <cutils/log.h>
#include <wtf/CurrentTime.h>
#include <wtf/text/CString.h>
#undef XLOGC
#define XLOGC(...) android_printLog(ANDROID_LOG_DEBUG, "UpdateManager", __VA_ARGS__)
#ifdef DEBUG
#undef XLOG
#define XLOG(...) android_printLog(ANDROID_LOG_DEBUG, "UpdateManager", __VA_ARGS__)
#else
#undef XLOG
#define XLOG(...)
#endif // DEBUG
namespace WebCore {
UpdateManager::UpdateManager()
: m_paintingPicture(0)
, m_deferredPicture(0)
{
}
UpdateManager::~UpdateManager()
{
SkSafeUnref(m_paintingPicture);
SkSafeUnref(m_deferredPicture);
}
void UpdateManager::swap()
{
m_paintingInval.op(m_deferredInval, SkRegion::kUnion_Op);
m_deferredInval.setEmpty();
android::Mutex::Autolock lock(m_paintingPictureSync);
if (m_deferredPicture) {
XLOG("unlock of updatemanager %p, was painting %p, now painting %p",
this, m_paintingPicture, m_deferredPicture);
SkSafeUnref(m_paintingPicture);
m_paintingPicture = m_deferredPicture;
m_deferredPicture = 0;
}
}
void UpdateManager::updateInval(const SkRegion& invalRegion)
{
m_deferredInval.op(invalRegion, SkRegion::kUnion_Op);
}
void UpdateManager::updatePicture(SkPicture* picture)
{
SkSafeRef(picture);
SkSafeUnref(m_deferredPicture);
m_deferredPicture = picture;
}
bool UpdateManager::paint(BaseTile* tile, SkCanvas* canvas, unsigned int* pictureUsed)
{
m_paintingPictureSync.lock();
SkPicture* picture = m_paintingPicture;
SkSafeRef(picture);
m_paintingPictureSync.unlock();
XLOG("UpdateManager %p painting with picture %p", this, picture);
if (!picture)
return false;
canvas->drawPicture(*picture);
// TODO: visualization layer diagonals
SkSafeUnref(picture);
return true;
}
void UpdateManager::clearPaintingInval()
{
m_paintingInval.setEmpty();
}
} // namespace WebCore
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