69 lines
2.0 KiB
C++
Executable File
69 lines
2.0 KiB
C++
Executable File
/*
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* Copyright (C) 2022 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "MemoryPolicy.h"
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#include <android-base/properties.h>
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#include <optional>
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#include <string_view>
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#include "Properties.h"
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namespace android::uirenderer {
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constexpr static MemoryPolicy sDefaultMemoryPolicy;
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constexpr static MemoryPolicy sPersistentOrSystemPolicy{
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.contextTimeout = 10_s,
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.useAlternativeUiHidden = true,
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};
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constexpr static MemoryPolicy sLowRamPolicy{
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.useAlternativeUiHidden = true,
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.purgeScratchOnly = false,
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};
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constexpr static MemoryPolicy sExtremeLowRam{
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.initialMaxSurfaceAreaScale = 0.2f,
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.surfaceSizeMultiplier = 5 * 4.0f,
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.backgroundRetentionPercent = 0.2f,
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.contextTimeout = 5_s,
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.minimumResourceRetention = 1_s,
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.useAlternativeUiHidden = true,
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.purgeScratchOnly = false,
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.releaseContextOnStoppedOnly = true,
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};
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const MemoryPolicy& loadMemoryPolicy() {
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if (Properties::isSystemOrPersistent) {
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return sPersistentOrSystemPolicy;
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}
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std::string memoryPolicy = base::GetProperty(PROPERTY_MEMORY_POLICY, "");
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if (memoryPolicy == "default") {
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return sDefaultMemoryPolicy;
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}
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if (memoryPolicy == "lowram") {
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return sLowRamPolicy;
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}
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if (memoryPolicy == "extremelowram") {
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return sExtremeLowRam;
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}
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if (Properties::isLowRam) {
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return sLowRamPolicy;
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}
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return sDefaultMemoryPolicy;
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}
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} // namespace android::uirenderer
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