| /* |
| * Copyright (C) 2016-2018 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. |
| */ |
| |
| #pragma once |
| |
| #include "Image.h" |
| #include "IntSize.h" |
| #include "PlatformContextDirect2D.h" |
| #include <JavaScriptCore/Uint8ClampedArray.h> |
| #include <wtf/CheckedArithmetic.h> |
| #include <wtf/RefPtr.h> |
| #include <wtf/RetainPtr.h> |
| |
| interface ID2D1RenderTarget; |
| interface ID2D1Bitmap; |
| |
| namespace WebCore { |
| |
| class PlatformContextDirect2D; |
| |
| struct ImageBufferData { |
| mutable IntSize backingStoreSize; |
| Checked<unsigned, RecordOverflow> bytesPerRow; |
| |
| // Only for software ImageBuffers. |
| mutable Vector<uint8_t> data; |
| mutable AlphaPremultiplication byteFormat { AlphaPremultiplication::Unpremultiplied }; |
| std::unique_ptr<PlatformContextDirect2D> platformContext; |
| std::unique_ptr<GraphicsContext> context; |
| COMPtr<ID2D1Bitmap> bitmap; |
| |
| enum class BitmapBufferSync { InSync, BitmapOutOfSync, BufferOutOfSync }; |
| mutable BitmapBufferSync bitmapBufferSync { BitmapBufferSync::BufferOutOfSync }; |
| |
| RefPtr<Uint8ClampedArray> getData(AlphaPremultiplication, const IntRect&, const IntSize&, bool accelerateRendering, float resolutionScale) const; |
| void putData(const Uint8ClampedArray& source, AlphaPremultiplication sourceFormat, const IntSize& sourceSize, const IntRect& sourceRect, const IntPoint& destPoint, const IntSize&, bool accelerateRendering, float resolutionScale); |
| |
| COMPtr<ID2D1Bitmap> compatibleBitmap(ID2D1RenderTarget*); |
| |
| bool ensureBackingStore(const IntSize&) const; |
| void loadDataToBitmapIfNeeded(); |
| bool readDataFromBitmapIfNeeded(AlphaPremultiplication desiredFormat) const; |
| bool copyRectFromData(const IntRect&, RefPtr<Uint8ClampedArray>&) const; |
| bool copyRectFromSourceToData(const IntRect&, const Uint8ClampedArray&, AlphaPremultiplication); |
| void markBufferOutOfSync() { bitmapBufferSync = BitmapBufferSync::BufferOutOfSync; } |
| }; |
| |
| } // namespace WebCore |