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/*
* Copyright (C) 2011 Apple Inc. All rights reserved.
* Copyright (C) 2013 Nokia Corporation and/or its subsidiary(-ies).
* Copyright (C) 2016-2019 Igalia S.L.
* Copyright (C) 2021 Sony Interactive Entertainment Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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 APPLE INC. AND ITS CONTRIBUTORS ``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 APPLE INC. OR ITS 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 "DrawingAreaProxyWC.h"
#if USE(GRAPHICS_LAYER_WC)
#include "DrawingAreaMessages.h"
#include "MessageSenderInlines.h"
#include "UpdateInfo.h"
#include "WebCoreArgumentCoders.h"
#include "WebPageProxy.h"
#include <WebCore/Region.h>
namespace WebKit {
DrawingAreaProxyWC::DrawingAreaProxyWC(WebPageProxy& webPageProxy)
: DrawingAreaProxy(DrawingAreaType::WC, webPageProxy)
{
}
void DrawingAreaProxyWC::paint(BackingStore::PlatformGraphicsContext context, const WebCore::IntRect& rect, WebCore::Region& unpaintedRegion)
{
unpaintedRegion = rect;
if (!m_backingStore)
return;
m_backingStore->paint(context, rect);
unpaintedRegion.subtract(WebCore::IntRect({ }, m_backingStore->size()));
}
void DrawingAreaProxyWC::sizeDidChange()
{
discardBackingStore();
m_currentBackingStoreStateID++;
m_webPageProxy.send(Messages::DrawingArea::UpdateGeometryWC(m_currentBackingStoreStateID, m_size), m_identifier);
}
void DrawingAreaProxyWC::update(uint64_t backingStoreStateID, UpdateInfo&& updateInfo)
{
if (backingStoreStateID == m_currentBackingStoreStateID)
incorporateUpdate(WTFMove(updateInfo));
m_webPageProxy.send(Messages::DrawingArea::DisplayDidRefresh(), m_identifier);
}
void DrawingAreaProxyWC::enterAcceleratedCompositingMode(uint64_t backingStoreStateID, const LayerTreeContext&)
{
discardBackingStore();
}
void DrawingAreaProxyWC::incorporateUpdate(UpdateInfo&& updateInfo)
{
if (updateInfo.updateRectBounds.isEmpty())
return;
if (!m_backingStore)
m_backingStore.emplace(updateInfo.viewSize, updateInfo.deviceScaleFactor, m_webPageProxy);
WebCore::Region damageRegion;
if (updateInfo.scrollRect.isEmpty()) {
for (const auto& rect : updateInfo.updateRects)
damageRegion.unite(rect);
} else
damageRegion = WebCore::IntRect({ }, m_webPageProxy.viewSize());
m_backingStore->incorporateUpdate(WTFMove(updateInfo));
m_webPageProxy.setViewNeedsDisplay(damageRegion);
}
void DrawingAreaProxyWC::discardBackingStore()
{
m_backingStore = std::nullopt;
}
} // namespace WebKit
#endif // USE(GRAPHICS_LAYER_WC)
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