diff options
Diffstat (limited to 'chromium/third_party/WebKit/Source/core/platform/graphics/filters/FilterOperations.cpp')
-rw-r--r-- | chromium/third_party/WebKit/Source/core/platform/graphics/filters/FilterOperations.cpp | 188 |
1 files changed, 0 insertions, 188 deletions
diff --git a/chromium/third_party/WebKit/Source/core/platform/graphics/filters/FilterOperations.cpp b/chromium/third_party/WebKit/Source/core/platform/graphics/filters/FilterOperations.cpp deleted file mode 100644 index 8857a2368db..00000000000 --- a/chromium/third_party/WebKit/Source/core/platform/graphics/filters/FilterOperations.cpp +++ /dev/null @@ -1,188 +0,0 @@ -/* - * Copyright (C) 2011 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 APPLE COMPUTER, INC. ``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 COMPUTER, INC. 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 "core/platform/graphics/filters/FilterOperations.h" - -#include "core/css/LengthFunctions.h" -#include "core/platform/graphics/IntSize.h" -#include "core/platform/graphics/filters/FEGaussianBlur.h" - -namespace WebCore { - -static inline IntSize outsetSizeForBlur(float stdDeviation) -{ - unsigned kernelSizeX = 0; - unsigned kernelSizeY = 0; - FEGaussianBlur::calculateUnscaledKernelSize(kernelSizeX, kernelSizeY, stdDeviation, stdDeviation); - - IntSize outset; - // We take the half kernel size and multiply it with three, because we run box blur three times. - outset.setWidth(3 * kernelSizeX * 0.5f); - outset.setHeight(3 * kernelSizeY * 0.5f); - - return outset; -} - -FilterOperations::FilterOperations() -{ -} - -FilterOperations& FilterOperations::operator=(const FilterOperations& other) -{ - m_operations = other.m_operations; - return *this; -} - -bool FilterOperations::operator==(const FilterOperations& o) const -{ - if (m_operations.size() != o.m_operations.size()) - return false; - - unsigned s = m_operations.size(); - for (unsigned i = 0; i < s; i++) { - if (*m_operations[i] != *o.m_operations[i]) - return false; - } - - return true; -} - -bool FilterOperations::operationsMatch(const FilterOperations& other) const -{ - size_t numOperations = operations().size(); - // If the sizes of the function lists don't match, the lists don't match - if (numOperations != other.operations().size()) - return false; - - // If the types of each function are not the same, the lists don't match - for (size_t i = 0; i < numOperations; ++i) { - if (!operations()[i]->isSameType(*other.operations()[i])) - return false; - } - return true; -} - -bool FilterOperations::hasCustomFilter() const -{ - for (size_t i = 0; i < m_operations.size(); ++i) { - FilterOperation::OperationType type = m_operations.at(i)->getOperationType(); - if (type == FilterOperation::CUSTOM || type == FilterOperation::VALIDATED_CUSTOM) - return true; - } - return false; -} - -bool FilterOperations::hasReferenceFilter() const -{ - for (size_t i = 0; i < m_operations.size(); ++i) { - if (m_operations.at(i)->getOperationType() == FilterOperation::REFERENCE) - return true; - } - return false; -} - -bool FilterOperations::hasOutsets() const -{ - for (size_t i = 0; i < m_operations.size(); ++i) { - FilterOperation::OperationType operationType = m_operations.at(i).get()->getOperationType(); - if (operationType == FilterOperation::BLUR || operationType == FilterOperation::DROP_SHADOW || operationType == FilterOperation::REFERENCE) - return true; - } - return false; -} - -FilterOutsets FilterOperations::outsets() const -{ - FilterOutsets totalOutsets; - for (size_t i = 0; i < m_operations.size(); ++i) { - FilterOperation* filterOperation = m_operations.at(i).get(); - switch (filterOperation->getOperationType()) { - case FilterOperation::BLUR: { - BlurFilterOperation* blurOperation = static_cast<BlurFilterOperation*>(filterOperation); - float stdDeviation = floatValueForLength(blurOperation->stdDeviation(), 0); - IntSize outsetSize = outsetSizeForBlur(stdDeviation); - FilterOutsets outsets(outsetSize.height(), outsetSize.width(), outsetSize.height(), outsetSize.width()); - totalOutsets += outsets; - break; - } - case FilterOperation::DROP_SHADOW: { - DropShadowFilterOperation* dropShadowOperation = static_cast<DropShadowFilterOperation*>(filterOperation); - IntSize outsetSize = outsetSizeForBlur(dropShadowOperation->stdDeviation()); - FilterOutsets outsets( - std::max(0, outsetSize.height() - dropShadowOperation->y()), - std::max(0, outsetSize.width() + dropShadowOperation->x()), - std::max(0, outsetSize.height() + dropShadowOperation->y()), - std::max(0, outsetSize.width() - dropShadowOperation->x()) - ); - totalOutsets += outsets; - break; - } - case FilterOperation::REFERENCE: { - ReferenceFilterOperation* referenceOperation = static_cast<ReferenceFilterOperation*>(filterOperation); - if (referenceOperation->filter() && referenceOperation->filter()->lastEffect()) { - FloatRect outsetRect(0, 0, 1, 1); - outsetRect = referenceOperation->filter()->lastEffect()->mapRectRecursive(outsetRect); - FilterOutsets outsets( - std::max(0.0f, -outsetRect.y()), - std::max(0.0f, outsetRect.x() + outsetRect.width() - 1), - std::max(0.0f, outsetRect.y() + outsetRect.height() - 1), - std::max(0.0f, -outsetRect.x()) - ); - totalOutsets += outsets; - } - break; - } - case FilterOperation::CUSTOM: - case FilterOperation::VALIDATED_CUSTOM: { - // FIXME: Need to include the filter margins here. - // https://bugs.webkit.org/show_bug.cgi?id=71400 - break; - } - default: - break; - } - } - return totalOutsets; -} - -bool FilterOperations::hasFilterThatAffectsOpacity() const -{ - for (size_t i = 0; i < m_operations.size(); ++i) - if (m_operations[i]->affectsOpacity()) - return true; - return false; -} - -bool FilterOperations::hasFilterThatMovesPixels() const -{ - for (size_t i = 0; i < m_operations.size(); ++i) - if (m_operations[i]->movesPixels()) - return true; - return false; -} - -} // namespace WebCore - |