| /* |
| * Copyright (C) 2010-2019 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. |
| */ |
| |
| #pragma once |
| |
| #include "SharedMemory.h" |
| #include <WebCore/IntRect.h> |
| #include <wtf/RefCounted.h> |
| #include <wtf/RefPtr.h> |
| |
| #if USE(CG) |
| #include "ColorSpaceData.h" |
| #include <wtf/RetainPtr.h> |
| #endif |
| |
| #if USE(CAIRO) |
| #include <WebCore/RefPtrCairo.h> |
| #endif |
| |
| #if USE(DIRECT2D) |
| interface ID2D1Bitmap; |
| interface ID2D1RenderTarget; |
| interface ID3D11Device1; |
| interface IDXGIKeyedMutex; |
| interface IDXGISurface1; |
| |
| #include <WebCore/COMPtr.h> |
| #endif |
| |
| namespace WebCore { |
| class Image; |
| class GraphicsContext; |
| } |
| |
| namespace WebKit { |
| |
| class ShareableBitmap : public RefCounted<ShareableBitmap> { |
| public: |
| struct Configuration { |
| bool isOpaque { false }; |
| #if PLATFORM(COCOA) |
| ColorSpaceData colorSpace; |
| #endif |
| #if USE(DIRECT2D) |
| mutable HANDLE sharedResourceHandle { nullptr }; |
| #endif |
| |
| void encode(IPC::Encoder&) const; |
| static bool decode(IPC::Decoder&, Configuration&); |
| }; |
| |
| class Handle { |
| WTF_MAKE_NONCOPYABLE(Handle); |
| public: |
| Handle(); |
| Handle(Handle&&) = default; |
| Handle& operator=(Handle&&) = default; |
| |
| bool isNull() const { return m_handle.isNull(); } |
| |
| void clear(); |
| |
| void encode(IPC::Encoder&) const; |
| static bool decode(IPC::Decoder&, Handle&); |
| |
| private: |
| friend class ShareableBitmap; |
| |
| mutable SharedMemory::Handle m_handle; |
| WebCore::IntSize m_size; |
| Configuration m_configuration; |
| }; |
| |
| // Create a shareable bitmap that uses malloced memory. |
| static RefPtr<ShareableBitmap> create(const WebCore::IntSize&, Configuration); |
| |
| // Create a shareable bitmap whose backing memory can be shared with another process. |
| static RefPtr<ShareableBitmap> createShareable(const WebCore::IntSize&, Configuration); |
| |
| // Create a shareable bitmap from an already existing shared memory block. |
| static RefPtr<ShareableBitmap> create(const WebCore::IntSize&, Configuration, RefPtr<SharedMemory>); |
| |
| // Create a shareable bitmap from a handle. |
| static RefPtr<ShareableBitmap> create(const Handle&, SharedMemory::Protection = SharedMemory::Protection::ReadWrite); |
| |
| // Create a handle. |
| bool createHandle(Handle&, SharedMemory::Protection = SharedMemory::Protection::ReadWrite) const; |
| |
| ~ShareableBitmap(); |
| |
| const WebCore::IntSize& size() const { return m_size; } |
| WebCore::IntRect bounds() const { return WebCore::IntRect(WebCore::IntPoint(), size()); } |
| |
| // Create a graphics context that can be used to paint into the backing store. |
| std::unique_ptr<WebCore::GraphicsContext> createGraphicsContext(); |
| |
| // Paint the backing store into the given context. |
| void paint(WebCore::GraphicsContext&, const WebCore::IntPoint& destination, const WebCore::IntRect& source); |
| void paint(WebCore::GraphicsContext&, float scaleFactor, const WebCore::IntPoint& destination, const WebCore::IntRect& source); |
| |
| bool isBackedBySharedMemory() const { return m_sharedMemory; } |
| |
| // This creates a bitmap image that directly references the shared bitmap data. |
| // This is only safe to use when we know that the contents of the shareable bitmap won't change. |
| RefPtr<WebCore::Image> createImage(); |
| |
| #if USE(CG) |
| // This creates a copied CGImageRef (most likely a copy-on-write) of the shareable bitmap. |
| RetainPtr<CGImageRef> makeCGImageCopy(); |
| |
| // This creates a CGImageRef that directly references the shared bitmap data. |
| // This is only safe to use when we know that the contents of the shareable bitmap won't change. |
| RetainPtr<CGImageRef> makeCGImage(); |
| #elif USE(CAIRO) |
| // This creates a BitmapImage that directly references the shared bitmap data. |
| // This is only safe to use when we know that the contents of the shareable bitmap won't change. |
| RefPtr<cairo_surface_t> createCairoSurface(); |
| #elif USE(DIRECT2D) |
| COMPtr<ID2D1Bitmap> createDirect2DSurface(ID3D11Device1*, ID2D1RenderTarget*); |
| IDXGISurface1* dxSurface() { return m_surface.get(); } |
| void createSharedResource(); |
| void disposeSharedResource(); |
| void leakSharedResource(); |
| #endif |
| |
| private: |
| ShareableBitmap(const WebCore::IntSize&, Configuration, void*); |
| ShareableBitmap(const WebCore::IntSize&, Configuration, RefPtr<SharedMemory>); |
| |
| static Checked<unsigned, RecordOverflow> numBytesForSize(WebCore::IntSize, const ShareableBitmap::Configuration&); |
| static Checked<unsigned, RecordOverflow> calculateBytesPerRow(WebCore::IntSize, const Configuration&); |
| static unsigned calculateBytesPerPixel(const Configuration&); |
| |
| #if USE(CG) |
| RetainPtr<CGImageRef> createCGImage(CGDataProviderRef) const; |
| static void releaseBitmapContextData(void* typelessBitmap, void* typelessData); |
| static void releaseDataProviderData(void* typelessBitmap, const void* typelessData, size_t); |
| #endif |
| |
| #if USE(CAIRO) |
| static void releaseSurfaceData(void* typelessBitmap); |
| #endif |
| |
| public: |
| void* data() const; |
| private: |
| size_t sizeInBytes() const { return numBytesForSize(m_size, m_configuration).unsafeGet(); } |
| |
| WebCore::IntSize m_size; |
| Configuration m_configuration; |
| |
| #if USE(DIRECT2D) |
| COMPtr<IDXGISurface1> m_surface; |
| COMPtr<IDXGIKeyedMutex> m_surfaceMutex; |
| COMPtr<ID2D1Bitmap> m_bitmap; |
| #endif |
| |
| // If the shareable bitmap is backed by shared memory, this points to the shared memory object. |
| RefPtr<SharedMemory> m_sharedMemory; |
| |
| // If the shareable bitmap is backed by fastMalloced memory, this points to the data. |
| void* m_data { nullptr }; |
| }; |
| |
| } // namespace WebKit |
| |