| /* |
| * 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. AND ITS CONTRIBUTORS ``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 ITS 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 "ShareableBitmapUtilities.h" |
| |
| #include "ShareableBitmap.h" |
| #include <WebCore/CachedImage.h> |
| #include <WebCore/Frame.h> |
| #include <WebCore/FrameSnapshotting.h> |
| #include <WebCore/GeometryUtilities.h> |
| #include <WebCore/GraphicsContext.h> |
| #include <WebCore/ImageBuffer.h> |
| #include <WebCore/IntSize.h> |
| #include <WebCore/PlatformScreen.h> |
| #include <WebCore/RenderImage.h> |
| #include <WebCore/RenderVideo.h> |
| |
| namespace WebKit { |
| using namespace WebCore; |
| |
| RefPtr<ShareableBitmap> createShareableBitmap(RenderImage& renderImage, CreateShareableBitmapFromImageOptions&& options) |
| { |
| Ref frame = renderImage.frame(); |
| auto colorSpaceForBitmap = screenColorSpace(frame->mainFrame().view()); |
| if (!renderImage.isMedia() && !renderImage.opacity() && options.useSnapshotForTransparentImages == UseSnapshotForTransparentImages::Yes) { |
| auto snapshotRect = renderImage.absoluteBoundingBoxRect(); |
| if (snapshotRect.isEmpty()) |
| return { }; |
| |
| OptionSet<SnapshotFlags> snapshotFlags { SnapshotFlags::ExcludeSelectionHighlighting, SnapshotFlags::PaintEverythingExcludingSelection }; |
| auto imageBuffer = snapshotFrameRect(frame.get(), snapshotRect, { snapshotFlags, PixelFormat::BGRA8, DestinationColorSpace::SRGB() }); |
| if (!imageBuffer) |
| return { }; |
| |
| auto snapshotImage = ImageBuffer::sinkIntoImage(WTFMove(imageBuffer), PreserveResolution::Yes); |
| if (!snapshotImage) |
| return { }; |
| |
| auto bitmap = ShareableBitmap::createShareable(snapshotRect.size(), { WTFMove(colorSpaceForBitmap) }); |
| if (!bitmap) |
| return { }; |
| |
| auto context = bitmap->createGraphicsContext(); |
| if (!context) |
| return { }; |
| |
| context->drawImage(*snapshotImage, { FloatPoint::zero(), snapshotRect.size() }); |
| return bitmap; |
| } |
| |
| #if ENABLE(VIDEO) |
| if (is<RenderVideo>(renderImage)) { |
| auto& renderVideo = downcast<RenderVideo>(renderImage); |
| Ref video = renderVideo.videoElement(); |
| auto image = video->nativeImageForCurrentTime(); |
| if (!image) |
| return { }; |
| |
| auto imageSize = image->size(); |
| if (imageSize.isEmpty() || imageSize.width() <= 1 || imageSize.height() <= 1) |
| return { }; |
| |
| auto bitmap = ShareableBitmap::createShareable(imageSize, { WTFMove(colorSpaceForBitmap) }); |
| if (!bitmap) |
| return { }; |
| |
| auto context = bitmap->createGraphicsContext(); |
| if (!context) |
| return { }; |
| |
| context->drawNativeImage(*image, imageSize, FloatRect { { }, imageSize }, FloatRect { { }, imageSize }); |
| return bitmap; |
| } |
| #endif // ENABLE(VIDEO) |
| |
| auto* cachedImage = renderImage.cachedImage(); |
| if (!cachedImage || cachedImage->errorOccurred()) |
| return { }; |
| |
| auto* image = cachedImage->imageForRenderer(&renderImage); |
| if (!image || image->width() <= 1 || image->height() <= 1) |
| return { }; |
| |
| if (options.allowAnimatedImages == AllowAnimatedImages::No && image->isAnimated()) |
| return { }; |
| |
| auto bitmapSize = cachedImage->imageSizeForRenderer(&renderImage); |
| if (options.screenSizeInPixels) { |
| auto scaledSize = largestRectWithAspectRatioInsideRect(bitmapSize.width() / bitmapSize.height(), { FloatPoint(), *options.screenSizeInPixels }).size(); |
| bitmapSize = scaledSize.width() < bitmapSize.width() ? scaledSize : bitmapSize; |
| } |
| |
| // FIXME: Only select ExtendedColor on images known to need wide gamut. |
| auto sharedBitmap = ShareableBitmap::createShareable(IntSize(bitmapSize), { WTFMove(colorSpaceForBitmap) }); |
| if (!sharedBitmap) |
| return { }; |
| |
| auto graphicsContext = sharedBitmap->createGraphicsContext(); |
| if (!graphicsContext) |
| return { }; |
| |
| graphicsContext->drawImage(*image, FloatRect(0, 0, bitmapSize.width(), bitmapSize.height()), { renderImage.imageOrientation() }); |
| return sharedBitmap; |
| } |
| |
| } |