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53 lines
1.6 KiB
C++
53 lines
1.6 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef MOZILLA_LAYERS_SHAREDIMAGEUTILS_H
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#define MOZILLA_LAYERS_SHAREDIMAGEUTILS_H
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#include "gfxSharedImageSurface.h"
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#include "gfxPlatform.h"
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#include "ShadowLayers.h"
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namespace mozilla {
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namespace layers {
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template<typename Deallocator>
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void DeallocSharedImageData(Deallocator* protocol, const SharedImage& aImage)
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{
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if (aImage.type() == SharedImage::TYUVImage) {
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protocol->DeallocShmem(aImage.get_YUVImage().Ydata());
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protocol->DeallocShmem(aImage.get_YUVImage().Udata());
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protocol->DeallocShmem(aImage.get_YUVImage().Vdata());
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} else if (aImage.type() == SharedImage::TSurfaceDescriptor) {
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protocol->DeallocShmem(aImage.get_SurfaceDescriptor().get_Shmem());
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}
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}
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template<typename Allocator>
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bool AllocateSharedBuffer(Allocator* protocol,
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const gfxIntSize& aSize,
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gfxASurface::gfxContentType aContent,
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gfxSharedImageSurface** aBuffer)
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{
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ipc::SharedMemory::SharedMemoryType shmemType = OptimalShmemType();
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gfxASurface::gfxImageFormat format = gfxPlatform::GetPlatform()->OptimalFormatForContent(aContent);
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nsRefPtr<gfxSharedImageSurface> back =
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gfxSharedImageSurface::CreateUnsafe(protocol, aSize, format, shmemType);
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if (!back)
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return false;
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*aBuffer = nsnull;
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back.swap(*aBuffer);
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return true;
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}
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} // namespace
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} // namespace
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#endif
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