| /* |
| * Copyright (C) 2021 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. |
| */ |
| |
| #import "config.h" |
| #import "FilterImage.h" |
| |
| #if USE(CORE_IMAGE) |
| |
| #import "PlatformImageBuffer.h" |
| #import <CoreImage/CIContext.h> |
| #import <CoreImage/CoreImage.h> |
| #import <wtf/NeverDestroyed.h> |
| #import <wtf/cocoa/TypeCastsCocoa.h> |
| |
| namespace WebCore { |
| |
| static RetainPtr<CIContext> sharedCIContext() |
| { |
| static NeverDestroyed<RetainPtr<CIContext>> ciContext = [CIContext contextWithOptions:@{ kCIContextWorkingColorSpace: bridge_id_cast(adoptCF(CGColorSpaceCreateWithName(kCGColorSpaceSRGB))).get() }]; |
| return ciContext; |
| } |
| |
| void FilterImage::setCIImage(RetainPtr<CIImage>&& ciImage) |
| { |
| ASSERT(ciImage); |
| m_ciImage = WTFMove(ciImage); |
| } |
| |
| ImageBuffer* FilterImage::imageBufferFromCIImage() |
| { |
| ASSERT(m_ciImage); |
| |
| if (m_imageBuffer) |
| return m_imageBuffer.get(); |
| |
| m_imageBuffer = IOSurfaceImageBuffer::create(m_absoluteImageRect.size(), 1, m_colorSpace, PixelFormat::BGRA8, RenderingPurpose::Unspecified); |
| if (!m_imageBuffer) |
| return nullptr; |
| |
| auto destRect = FloatRect { FloatPoint(), m_absoluteImageRect.size() }; |
| [sharedCIContext().get() render: m_ciImage.get() toIOSurface: downcast<IOSurfaceImageBuffer>(*m_imageBuffer).surface().surface() bounds:destRect colorSpace:m_colorSpace.platformColorSpace()]; |
| |
| return m_imageBuffer.get(); |
| } |
| |
| } // namespace WebCore |
| |
| #endif // USE(CORE_IMAGE) |