зеркало из https://github.com/mozilla/gecko-dev.git
54 строки
1.5 KiB
C++
54 строки
1.5 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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#include "RenderSharedSurfaceTextureHost.h"
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#include "mozilla/gfx/Logging.h"
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#include "mozilla/layers/ImageDataSerializer.h"
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#include "mozilla/layers/SourceSurfaceSharedData.h"
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namespace mozilla {
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namespace wr {
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RenderSharedSurfaceTextureHost::RenderSharedSurfaceTextureHost(gfx::SourceSurfaceSharedDataWrapper* aSurface)
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: mSurface(aSurface)
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, mLocked(false)
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{
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MOZ_COUNT_CTOR_INHERITED(RenderSharedSurfaceTextureHost, RenderTextureHost);
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MOZ_ASSERT(aSurface);
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}
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RenderSharedSurfaceTextureHost::~RenderSharedSurfaceTextureHost()
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{
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MOZ_COUNT_DTOR_INHERITED(RenderSharedSurfaceTextureHost, RenderTextureHost);
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}
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wr::WrExternalImage
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RenderSharedSurfaceTextureHost::Lock(uint8_t aChannelIndex, gl::GLContext* aGL)
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{
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if (!mLocked) {
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if (NS_WARN_IF(!mSurface->Map(gfx::DataSourceSurface::MapType::READ_WRITE,
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&mMap))) {
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return RawDataToWrExternalImage(nullptr, 0);
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}
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mLocked = true;
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}
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return RawDataToWrExternalImage(mMap.mData,
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mMap.mStride * mSurface->GetSize().height);
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}
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void
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RenderSharedSurfaceTextureHost::Unlock()
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{
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if (mLocked) {
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mSurface->Unmap();
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mLocked = false;
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}
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}
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} // namespace wr
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} // namespace mozilla
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