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https://gitlab.winehq.org/wine/wine-gecko.git
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102 lines
2.1 KiB
C++
102 lines
2.1 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* vim: sw=2 ts=8 et :
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*/
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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 "CompositorLRU.h"
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#include "mozilla/ClearOnShutdown.h"
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#include "mozilla/DebugOnly.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/unused.h"
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#include "CompositorParent.h"
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namespace mozilla {
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namespace layers {
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mozilla::StaticRefPtr<CompositorLRU> CompositorLRU::sSingleton;
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void
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CompositorLRU::Init()
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{
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unused << GetSingleton();
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}
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CompositorLRU*
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CompositorLRU::GetSingleton()
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{
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if (sSingleton) {
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return sSingleton;
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}
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sSingleton = new CompositorLRU();
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ClearOnShutdown(&sSingleton);
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return sSingleton;
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}
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CompositorLRU::CompositorLRU()
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{
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mLRUSize = Preferences::GetUint("layers.compositor-lru-size", uint32_t(0));
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}
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CompositorLRU::~CompositorLRU()
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{
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}
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void
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CompositorLRU::Add(PCompositorParent* aCompositor, const uint64_t& aId)
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{
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auto index = mLRU.IndexOf(std::make_pair(aCompositor, aId));
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if (index != nsTArray<CompositorLayerPair>::NoIndex) {
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return;
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}
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if (mLRUSize == 0) {
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unused << aCompositor->SendClearCachedResources(aId);
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return;
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}
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if (mLRU.Length() == mLRUSize) {
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CompositorLayerPair victim = mLRU.LastElement();
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unused << victim.first->SendClearCachedResources(victim.second);
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mLRU.RemoveElement(victim);
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}
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mLRU.InsertElementAt(0, std::make_pair(aCompositor, aId));
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}
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void
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CompositorLRU::Remove(PCompositorParent* aCompositor, const uint64_t& aId)
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{
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if (mLRUSize == 0) {
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return;
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}
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auto index = mLRU.IndexOf(std::make_pair(aCompositor, aId));
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if (index == nsTArray<PCompositorParent*>::NoIndex) {
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return;
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}
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mLRU.RemoveElementAt(index);
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}
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void
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CompositorLRU::Remove(PCompositorParent* aCompositor)
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{
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if (mLRUSize == 0) {
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return;
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}
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for (int32_t i = mLRU.Length() - 1; i >= 0; --i) {
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if (mLRU[i].first == aCompositor) {
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mLRU.RemoveElementAt(i);
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}
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}
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}
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} // namespace layers
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} // namespace mozilla
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