| /* |
| * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved. |
| * Copyright (C) 2013 Apple Inc. All rights reserved. |
| * |
| * 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 THE COPYRIGHT HOLDER "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 HOLDER 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" |
| |
| #if ENABLE(CSS_FILTERS) |
| #include "RenderLayerFilterInfo.h" |
| |
| #include "CachedSVGDocument.h" |
| #include "CachedSVGDocumentReference.h" |
| #include "CustomFilterOperation.h" |
| #include "CustomFilterProgram.h" |
| #include "FilterEffectRenderer.h" |
| #include "SVGElement.h" |
| #include "SVGFilter.h" |
| #include "SVGFilterPrimitiveStandardAttributes.h" |
| #include <wtf/NeverDestroyed.h> |
| |
| namespace WebCore { |
| |
| HashMap<const RenderLayer*, OwnPtr<RenderLayer::FilterInfo>>& RenderLayer::FilterInfo::map() |
| { |
| static NeverDestroyed<HashMap<const RenderLayer*, OwnPtr<FilterInfo>>> map; |
| return map; |
| } |
| |
| RenderLayer::FilterInfo* RenderLayer::FilterInfo::getIfExists(const RenderLayer& layer) |
| { |
| ASSERT(layer.m_hasFilterInfo == map().contains(&layer)); |
| |
| return layer.m_hasFilterInfo ? map().get(&layer) : 0; |
| } |
| |
| RenderLayer::FilterInfo& RenderLayer::FilterInfo::get(RenderLayer& layer) |
| { |
| ASSERT(layer.m_hasFilterInfo == map().contains(&layer)); |
| |
| OwnPtr<FilterInfo>& info = map().add(&layer, nullptr).iterator->value; |
| if (!info) { |
| info = adoptPtr(new FilterInfo(layer)); |
| layer.m_hasFilterInfo = true; |
| } |
| return *info; |
| } |
| |
| void RenderLayer::FilterInfo::remove(RenderLayer& layer) |
| { |
| ASSERT(layer.m_hasFilterInfo == map().contains(&layer)); |
| |
| if (map().remove(&layer)) |
| layer.m_hasFilterInfo = false; |
| } |
| |
| RenderLayer::FilterInfo::FilterInfo(RenderLayer& layer) |
| : m_layer(layer) |
| { |
| } |
| |
| RenderLayer::FilterInfo::~FilterInfo() |
| { |
| #if ENABLE(CSS_SHADERS) |
| removeCustomFilterClients(); |
| #endif |
| #if ENABLE(SVG) |
| removeReferenceFilterClients(); |
| #endif |
| } |
| |
| void RenderLayer::FilterInfo::setRenderer(PassRefPtr<FilterEffectRenderer> renderer) |
| { |
| m_renderer = renderer; |
| } |
| |
| #if ENABLE(SVG) |
| |
| void RenderLayer::FilterInfo::notifyFinished(CachedResource*) |
| { |
| m_layer.renderer().element()->setNeedsStyleRecalc(SyntheticStyleChange); |
| m_layer.renderer().repaint(); |
| } |
| |
| void RenderLayer::FilterInfo::updateReferenceFilterClients(const FilterOperations& operations) |
| { |
| removeReferenceFilterClients(); |
| for (size_t i = 0, size = operations.size(); i < size; ++i) { |
| FilterOperation* filterOperation = operations.operations()[i].get(); |
| if (filterOperation->type() != FilterOperation::REFERENCE) |
| continue; |
| ReferenceFilterOperation* referenceFilterOperation = static_cast<ReferenceFilterOperation*>(filterOperation); |
| CachedSVGDocumentReference* documentReference = referenceFilterOperation->cachedSVGDocumentReference(); |
| CachedSVGDocument* cachedSVGDocument = documentReference ? documentReference->document() : 0; |
| |
| if (cachedSVGDocument) { |
| // Reference is external; wait for notifyFinished(). |
| cachedSVGDocument->addClient(this); |
| m_externalSVGReferences.append(cachedSVGDocument); |
| } else { |
| // Reference is internal; add layer as a client so we can trigger |
| // filter repaint on SVG attribute change. |
| Element* filter = m_layer.renderer().element()->document().getElementById(referenceFilterOperation->fragment()); |
| if (!filter || !filter->renderer() || !filter->renderer()->isSVGResourceFilter()) |
| continue; |
| filter->renderer()->toRenderSVGResourceContainer()->addClientRenderLayer(&m_layer); |
| m_internalSVGReferences.append(filter); |
| } |
| } |
| } |
| |
| void RenderLayer::FilterInfo::removeReferenceFilterClients() |
| { |
| for (size_t i = 0, size = m_externalSVGReferences.size(); i < size; ++i) |
| m_externalSVGReferences[i]->removeClient(this); |
| m_externalSVGReferences.clear(); |
| for (size_t i = 0, size = m_internalSVGReferences.size(); i < size; ++i) { |
| Element* filter = m_internalSVGReferences[i].get(); |
| if (!filter->renderer()) |
| continue; |
| filter->renderer()->toRenderSVGResourceContainer()->removeClientRenderLayer(&m_layer); |
| } |
| m_internalSVGReferences.clear(); |
| } |
| |
| #endif |
| |
| #if ENABLE(CSS_SHADERS) |
| |
| void RenderLayer::FilterInfo::notifyCustomFilterProgramLoaded(CustomFilterProgram*) |
| { |
| m_layer.renderer().element()->setNeedsStyleRecalc(SyntheticStyleChange); |
| m_layer.renderer().repaint(); |
| } |
| |
| void RenderLayer::FilterInfo::updateCustomFilterClients(const FilterOperations& operations) |
| { |
| if (!operations.size()) { |
| removeCustomFilterClients(); |
| return; |
| } |
| Vector<RefPtr<CustomFilterProgram>> cachedCustomFilterPrograms; |
| for (size_t i = 0, size = operations.size(); i < size; ++i) { |
| const FilterOperation* filterOperation = operations.operations()[i].get(); |
| if (filterOperation->type() != FilterOperation::CUSTOM) |
| continue; |
| const CustomFilterOperation* customFilterOperation = static_cast<const CustomFilterOperation*>(filterOperation); |
| CustomFilterProgram* program = customFilterOperation->program(); |
| cachedCustomFilterPrograms.append(program); |
| program->addClient(this); |
| } |
| // Remove the old clients here, after we've added the new ones, so that we don't flicker if some shaders are unchanged. |
| removeCustomFilterClients(); |
| m_cachedCustomFilterPrograms.swap(cachedCustomFilterPrograms); |
| } |
| |
| void RenderLayer::FilterInfo::removeCustomFilterClients() |
| { |
| for (size_t i = 0, size = m_cachedCustomFilterPrograms.size(); i < size; ++i) |
| m_cachedCustomFilterPrograms[i]->removeClient(this); |
| m_cachedCustomFilterPrograms.clear(); |
| } |
| |
| #endif |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(CSS_FILTERS) |