2d34e76dac
Add a tracing API and instrument key functions in order to profile aapt2 bottleneck. The API allows to generate systrace fragment files. Impact on performance is neglibible with each Trace requiring less than 1us and the final Flush operation at the end of a command requiring around 40us. Bug: None Test: None Change-Id: I51b564d3694e9384679f43b878b32295527dddf6
92 lines
2.7 KiB
C++
92 lines
2.7 KiB
C++
/*
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* Copyright (C) 2019 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 "link/ResourceExcluder.h"
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#include <algorithm>
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#include "DominatorTree.h"
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#include "ResourceTable.h"
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#include "trace/TraceBuffer.h"
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using android::ConfigDescription;
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namespace aapt {
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namespace {
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void RemoveIfExcluded(std::set<std::pair<ConfigDescription, int>>& excluded_configs_,
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IAaptContext* context,
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ResourceEntry* entry,
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ResourceConfigValue* value) {
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const ConfigDescription& config = value->config;
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// If this entry is a default, ignore
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if (config == ConfigDescription::DefaultConfig()) {
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return;
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}
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for (auto& excluded_pair : excluded_configs_) {
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const ConfigDescription& excluded_config = excluded_pair.first;
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const int& excluded_diff = excluded_pair.second;
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// Check whether config contains all flags in excluded config
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int node_diff = config.diff(excluded_config);
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int masked_diff = excluded_diff & node_diff;
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if (masked_diff == 0) {
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if (context->IsVerbose()) {
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context->GetDiagnostics()->Note(
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DiagMessage(value->value->GetSource())
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<< "excluded resource \""
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<< entry->name
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<< "\" with config "
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<< config.toString());
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}
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value->value = {};
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return;
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}
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}
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}
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} // namespace
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bool ResourceExcluder::Consume(IAaptContext* context, ResourceTable* table) {
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TRACE_NAME("ResourceExcluder::Consume");
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for (auto& package : table->packages) {
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for (auto& type : package->types) {
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for (auto& entry : type->entries) {
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for (auto& value : entry->values) {
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RemoveIfExcluded(excluded_configs_, context, entry.get(), value.get());
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}
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// Erase the values that were removed.
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entry->values.erase(
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std::remove_if(
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entry->values.begin(), entry->values.end(),
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[](const std::unique_ptr<ResourceConfigValue>& val) -> bool {
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return val == nullptr || val->value == nullptr;
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}),
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entry->values.end());
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}
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}
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}
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return true;
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}
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} // namespace aapt
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