| /* |
| * 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. |
| */ |
| |
| #pragma once |
| |
| #include <CoreVideo/CoreVideo.h> |
| #include <utility> |
| #include <wtf/Expected.h> |
| #include <wtf/RetainPtr.h> |
| |
| using CGColorSpaceRef = struct CGColorSpace*; |
| using CVPixelBufferPoolRef = struct __CVPixelBufferPool*; |
| using CVPixelBufferRef = struct __CVBuffer*; |
| |
| namespace WebCore { |
| class ProcessIdentity; |
| |
| // Creates CVPixelBufferPool that creates CVPixelBuffers backed by IOSurfaces. |
| // These buffers can be for example sent through IPC. |
| WEBCORE_EXPORT Expected<RetainPtr<CVPixelBufferPoolRef>, CVReturn> createIOSurfaceCVPixelBufferPool(size_t width, size_t height, OSType pixelFormat, unsigned minimumBufferCount = 0u, bool isCGImageCompatible = false); |
| |
| WEBCORE_EXPORT Expected<RetainPtr<CVPixelBufferPoolRef>, CVReturn> createInMemoryCVPixelBufferPool(size_t width, size_t height, OSType pixelFormat, unsigned minimumBufferCount = 0u, bool isCGImageCompatible = false); |
| |
| WEBCORE_EXPORT Expected<RetainPtr<CVPixelBufferPoolRef>, CVReturn> createCVPixelBufferPool(size_t width, size_t height, OSType pixelFormat, unsigned minimumBufferCount = 0u, bool isCGImageCompatible = false, bool shouldUseIOSUrface = true); |
| |
| WEBCORE_EXPORT Expected<RetainPtr<CVPixelBufferRef>, CVReturn> createCVPixelBufferFromPool(CVPixelBufferPoolRef); |
| |
| WEBCORE_EXPORT Expected<RetainPtr<CVPixelBufferRef>, CVReturn> createCVPixelBuffer(IOSurfaceRef); |
| |
| WEBCORE_EXPORT RetainPtr<CGColorSpaceRef> createCGColorSpaceForCVPixelBuffer(CVPixelBufferRef); |
| |
| // Should be called with non-empty ProcessIdentity. |
| WEBCORE_EXPORT void setOwnershipIdentityForCVPixelBuffer(CVPixelBufferRef, const ProcessIdentity&); |
| |
| WEBCORE_EXPORT RetainPtr<CVPixelBufferRef> createBlackPixelBuffer(size_t width, size_t height, bool shouldUseIOSurface = false); |
| |
| } |