| /* |
| * Copyright 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #pragma once |
| |
| #include <layerproto/LayerProtoHeader.h> |
| #include <layerproto/LayerProtoParser.h> |
| #include <mutex> |
| #include <unordered_map> |
| |
| using namespace android::surfaceflinger; |
| |
| namespace android { |
| class String8; |
| |
| class LayerStats { |
| public: |
| void enable(); |
| void disable(); |
| void clear(); |
| bool isEnabled(); |
| void logLayerStats(const LayersProto& layersProto); |
| void dump(String8& result); |
| |
| private: |
| // Traverse layer tree to get all visible layers' stats |
| void traverseLayerTreeStatsLocked( |
| const std::vector<std::unique_ptr<LayerProtoParser::Layer>>& layerTree, |
| const LayerProtoParser::LayerGlobal& layerGlobal, |
| std::vector<std::string>* const outLayerShapeVec); |
| // Convert layer's top-left position into 8x8 percentage of the display |
| static const char* destinationLocation(int32_t location, int32_t range, bool isHorizontal); |
| // Convert layer's size into 8x8 percentage of the display |
| static const char* destinationSize(int32_t size, int32_t range, bool isWidth); |
| // Return the name of the transform |
| static const char* layerTransform(int32_t transform); |
| // Return the name of the composition type |
| static const char* layerCompositionType(int32_t compositionType); |
| // Return the name of the pixel format |
| static const char* layerPixelFormat(int32_t pixelFormat); |
| // Calculate scale ratios of layer's width/height with rotation information |
| static std::string scaleRatioWH(const LayerProtoParser::Layer* layer); |
| // Calculate scale ratio from source to destination and convert to string |
| static const char* scaleRatio(int32_t destinationScale, int32_t sourceScale); |
| // Bucket the alpha into designed buckets |
| static const char* alpha(float a); |
| // Return whether the original buffer is rotated in final composition |
| static bool isRotated(int32_t transform); |
| // Return whether the original buffer is V-flipped in final composition |
| static bool isVFlipped(int32_t transform); |
| // Return whether the original buffer is H-flipped in final composition |
| static bool isHFlipped(int32_t transform); |
| |
| bool mEnabled = false; |
| // Protect mLayersStatsMap |
| std::mutex mMutex; |
| // Hashmap for tracking the frame(layer shape) stats |
| // KEY is a concatenation of all layers' properties within a frame |
| // VALUE is the number of times this particular set has been scanned out |
| std::unordered_map<std::string, uint32_t> mLayerShapeStatsMap; |
| }; |
| |
| } // namespace android |