93 lines
2.6 KiB
C++
93 lines
2.6 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_GFX_WEBRENDERCOMPOSITABLE_HOLDER_H
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#define MOZILLA_GFX_WEBRENDERCOMPOSITABLE_HOLDER_H
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#include <queue>
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#include "mozilla/layers/TextureHost.h"
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#include "mozilla/webrender/WebRenderTypes.h"
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#include "nsClassHashtable.h"
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namespace mozilla {
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namespace wr {
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class WebRenderAPI;
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}
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namespace layers {
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class CompositableHost;
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class WebRenderTextureHost;
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class WebRenderCompositableHolder final
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{
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public:
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(WebRenderCompositableHolder)
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explicit WebRenderCompositableHolder();
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protected:
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~WebRenderCompositableHolder();
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public:
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void AddPipeline(const wr::PipelineId& aPipelineId);
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void RemovePipeline(const wr::PipelineId& aPipelineId);
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void HoldExternalImage(const wr::PipelineId& aPipelineId, const wr::Epoch& aEpoch, WebRenderTextureHost* aTexture);
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void Update(const wr::PipelineId& aPipelineId, const wr::Epoch& aEpoch);
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TimeStamp GetCompositionTime() const {
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return mCompositionTime;
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}
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void SetCompositionTime(TimeStamp aTimeStamp) {
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mCompositionTime = aTimeStamp;
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if (!mCompositionTime.IsNull() && !mCompositeUntilTime.IsNull() &&
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mCompositionTime >= mCompositeUntilTime) {
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mCompositeUntilTime = TimeStamp();
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}
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}
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void CompositeUntil(TimeStamp aTimeStamp) {
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if (mCompositeUntilTime.IsNull() ||
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mCompositeUntilTime < aTimeStamp) {
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mCompositeUntilTime = aTimeStamp;
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}
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}
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TimeStamp GetCompositeUntilTime() const {
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return mCompositeUntilTime;
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}
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private:
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struct ForwardingTextureHost {
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ForwardingTextureHost(const wr::Epoch& aEpoch, TextureHost* aTexture)
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: mEpoch(aEpoch)
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, mTexture(aTexture)
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{}
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wr::Epoch mEpoch;
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CompositableTextureHostRef mTexture;
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};
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struct PipelineTexturesHolder {
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// Holds forwarding WebRenderTextureHosts.
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std::queue<ForwardingTextureHost> mTextureHosts;
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};
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nsClassHashtable<nsUint64HashKey, PipelineTexturesHolder> mPipelineTexturesHolders;
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// Render time for the current composition.
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TimeStamp mCompositionTime;
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// When nonnull, during rendering, some compositable indicated that it will
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// change its rendering at this time. In order not to miss it, we composite
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// on every vsync until this time occurs (this is the latest such time).
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TimeStamp mCompositeUntilTime;
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};
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} // namespace layers
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} // namespace mozilla
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#endif /* MOZILLA_GFX_WEBRENDERCOMPOSITABLE_HOLDER_H */
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