зеркало из https://github.com/mozilla/gecko-dev.git
96 строки
2.7 KiB
C++
96 строки
2.7 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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 "mozilla/layers/TextureSourceProvider.h"
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#include "mozilla/layers/TextureHost.h"
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#include "mozilla/layers/PTextureParent.h"
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#ifdef XP_DARWIN
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#include "mozilla/layers/TextureSync.h"
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#endif
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namespace mozilla {
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namespace layers {
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TextureSourceProvider::~TextureSourceProvider()
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{
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ReadUnlockTextures();
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}
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void
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TextureSourceProvider::ReadUnlockTextures()
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{
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#ifdef XP_DARWIN
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nsClassHashtable<nsUint32HashKey, nsTArray<uint64_t>> texturesIdsToUnlockByPid;
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for (auto& texture : mUnlockAfterComposition) {
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auto bufferTexture = texture->AsBufferTextureHost();
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if (bufferTexture && bufferTexture->IsDirectMap()) {
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texture->ReadUnlock();
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auto actor = texture->GetIPDLActor();
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if (actor) {
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base::ProcessId pid = actor->OtherPid();
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nsTArray<uint64_t>* textureIds = texturesIdsToUnlockByPid.LookupOrAdd(pid);
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textureIds->AppendElement(TextureHost::GetTextureSerial(actor));
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}
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} else {
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texture->ReadUnlock();
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}
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}
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for (auto it = texturesIdsToUnlockByPid.ConstIter(); !it.Done(); it.Next()) {
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TextureSync::SetTexturesUnlocked(it.Key(), *it.UserData());
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}
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#else
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for (auto& texture : mUnlockAfterComposition) {
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texture->ReadUnlock();
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}
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#endif
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mUnlockAfterComposition.Clear();
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}
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void
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TextureSourceProvider::UnlockAfterComposition(TextureHost* aTexture)
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{
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mUnlockAfterComposition.AppendElement(aTexture);
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}
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bool
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TextureSourceProvider::NotifyNotUsedAfterComposition(TextureHost* aTextureHost)
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{
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mNotifyNotUsedAfterComposition.AppendElement(aTextureHost);
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// If Compositor holds many TextureHosts without compositing,
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// the TextureHosts should be flushed to reduce memory consumption.
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const int thresholdCount = 5;
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const double thresholdSec = 2.0f;
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if (mNotifyNotUsedAfterComposition.Length() > thresholdCount) {
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TimeStamp lastCompositionEndTime = GetLastCompositionEndTime();
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TimeDuration duration = lastCompositionEndTime ? TimeStamp::Now() - lastCompositionEndTime : TimeDuration();
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// Check if we could flush
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if (duration.ToSeconds() > thresholdSec) {
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FlushPendingNotifyNotUsed();
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}
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}
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return true;
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}
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void
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TextureSourceProvider::FlushPendingNotifyNotUsed()
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{
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for (auto& textureHost : mNotifyNotUsedAfterComposition) {
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textureHost->CallNotifyNotUsed();
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}
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mNotifyNotUsedAfterComposition.Clear();
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}
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void
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TextureSourceProvider::Destroy()
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{
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ReadUnlockTextures();
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FlushPendingNotifyNotUsed();
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}
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} // namespace layers
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} // namespace mozilla
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