| /* |
| * Copyright (C) 2021-2022 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 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 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 "FEImageSoftwareApplier.h" |
| |
| #include "FEImage.h" |
| #include "Filter.h" |
| #include "GraphicsContext.h" |
| |
| namespace WebCore { |
| |
| bool FEImageSoftwareApplier::apply(const Filter& filter, const FilterImageVector&, FilterImage& result) const |
| { |
| auto resultImage = result.imageBuffer(); |
| if (!resultImage) |
| return false; |
| |
| auto& sourceImage = m_effect.sourceImage(); |
| auto primitiveSubregion = result.primitiveSubregion(); |
| auto& context = resultImage->context(); |
| |
| if (auto nativeImage = sourceImage.nativeImageIfExists()) { |
| auto imageRect = primitiveSubregion; |
| auto srcRect = m_effect.sourceImageRect(); |
| m_effect.preserveAspectRatio().transformRect(imageRect, srcRect); |
| imageRect.scale(filter.filterScale()); |
| imageRect = IntRect(imageRect) - result.absoluteImageRect().location(); |
| context.drawNativeImage(*nativeImage, srcRect.size(), imageRect, srcRect); |
| return true; |
| } |
| |
| if (auto imageBuffer = sourceImage.imageBufferIfExists()) { |
| auto imageRect = primitiveSubregion; |
| imageRect.moveBy(m_effect.sourceImageRect().location()); |
| imageRect.scale(filter.filterScale()); |
| imageRect = IntRect(imageRect) - result.absoluteImageRect().location(); |
| context.drawImageBuffer(*imageBuffer, imageRect.location()); |
| return true; |
| } |
| |
| ASSERT_NOT_REACHED(); |
| return false; |
| } |
| |
| } // namespace WebCore |