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ce43f3d0c1
This is all wasted effort in sky since we invalidate the whole viewport on every frame. We'll probably eventually add back in some invalidation, but it likely won't be rect-based. R=esprehn@chromium.org Review URL: https://codereview.chromium.org/840403003
113 lines
4.7 KiB
C++
113 lines
4.7 KiB
C++
/*
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* Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
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*
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* Portions are Copyright (C) 1998 Netscape Communications Corporation.
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*
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* Other contributors:
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* Robert O'Callahan <roc+@cs.cmu.edu>
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* David Baron <dbaron@fas.harvard.edu>
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* Christian Biesinger <cbiesinger@web.de>
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* Randall Jesup <rjesup@wgate.com>
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* Roland Mainz <roland.mainz@informatik.med.uni-giessen.de>
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* Josh Soref <timeless@mac.com>
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* Boris Zbarsky <bzbarsky@mit.edu>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Alternatively, the contents of this file may be used under the terms
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* of either the Mozilla Public License Version 1.1, found at
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* http://www.mozilla.org/MPL/ (the "MPL") or the GNU General Public
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* License Version 2.0, found at http://www.fsf.org/copyleft/gpl.html
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* (the "GPL"), in which case the provisions of the MPL or the GPL are
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* applicable instead of those above. If you wish to allow use of your
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* version of this file only under the terms of one of those two
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* licenses (the MPL or the GPL) and not to allow others to use your
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* version of this file under the LGPL, indicate your decision by
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* deletingthe provisions above and replace them with the notice and
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* other provisions required by the MPL or the GPL, as the case may be.
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* If you do not delete the provisions above, a recipient may use your
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* version of this file under any of the LGPL, the MPL or the GPL.
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*/
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#include "sky/engine/config.h"
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#include "sky/engine/core/rendering/RenderLayerRepainter.h"
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#include "sky/engine/core/rendering/FilterEffectRenderer.h"
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#include "sky/engine/core/rendering/RenderLayer.h"
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#include "sky/engine/core/rendering/RenderView.h"
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namespace blink {
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RenderLayerRepainter::RenderLayerRepainter(RenderLayerModelObject& renderer)
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: m_renderer(renderer)
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{
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}
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void RenderLayerRepainter::computePaintInvalidationRectsIncludingNonCompositingDescendants()
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{
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// FIXME: boundsRectForPaintInvalidation() has to walk up the parent chain
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// for every layer to compute the rects. We should make this more efficient.
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// FIXME: it's wrong to call this when layout is not up-to-date, which we do.
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m_renderer.setPreviousPaintInvalidationRect(m_renderer.boundsRectForPaintInvalidation(m_renderer.containerForPaintInvalidation()));
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// FIXME: We are only updating the paint invalidation bounds but not
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// the positionFromPaintInvalidationContainer. This means that we may
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// forcing a full invaliation of the new position. Is this really correct?
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for (RenderLayer* layer = m_renderer.layer()->firstChild(); layer; layer = layer->nextSibling()) {
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layer->paintInvalidator().computePaintInvalidationRectsIncludingNonCompositingDescendants();
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}
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}
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void RenderLayerRepainter::setFilterBackendNeedsPaintInvalidationInRect(const LayoutRect& rect)
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{
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if (rect.isEmpty())
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return;
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LayoutRect rectForPaintInvalidation = rect;
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ASSERT(m_renderer.layer()->filterInfo());
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RenderLayer* parentLayer = enclosingFilterPaintInvalidationLayer();
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ASSERT(parentLayer);
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FloatQuad paintInvalidationQuad(rectForPaintInvalidation);
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LayoutRect parentLayerRect = m_renderer.localToContainerQuad(paintInvalidationQuad, parentLayer->renderer()).enclosingBoundingBox();
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if (parentLayerRect.isEmpty())
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return;
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if (parentLayer->paintsWithFilters()) {
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parentLayer->paintInvalidator().setFilterBackendNeedsPaintInvalidationInRect(parentLayerRect);
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return;
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}
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if (parentLayer->isRootLayer()) {
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RenderView* view = toRenderView(parentLayer->renderer());
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view->invalidatePaintForRectangle(parentLayerRect);
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return;
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}
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ASSERT_NOT_REACHED();
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}
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RenderLayer* RenderLayerRepainter::enclosingFilterPaintInvalidationLayer() const
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{
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for (const RenderLayer* curr = m_renderer.layer(); curr; curr = curr->parent()) {
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if ((curr != m_renderer.layer() && curr->requiresFullLayerImageForFilters()) || curr->isRootLayer())
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return const_cast<RenderLayer*>(curr);
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}
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return 0;
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}
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} // namespace blink
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