/*
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* Copyright 2018 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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#undef LOG_TAG
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#define LOG_TAG "LayerStats"
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#define ATRACE_TAG ATRACE_TAG_GRAPHICS
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#include "LayerStats.h"
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#include "DisplayHardware/HWComposer.h"
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#include "ui/DebugUtils.h"
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#include <android-base/stringprintf.h>
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#include <log/log.h>
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#include <utils/Trace.h>
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namespace android {
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using base::StringAppendF;
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using base::StringPrintf;
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void LayerStats::enable() {
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ATRACE_CALL();
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std::lock_guard<std::mutex> lock(mMutex);
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if (mEnabled) return;
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mLayerShapeStatsMap.clear();
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mEnabled = true;
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ALOGD("Logging enabled");
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}
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void LayerStats::disable() {
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ATRACE_CALL();
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std::lock_guard<std::mutex> lock(mMutex);
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if (!mEnabled) return;
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mEnabled = false;
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ALOGD("Logging disabled");
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}
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void LayerStats::clear() {
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ATRACE_CALL();
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std::lock_guard<std::mutex> lock(mMutex);
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mLayerShapeStatsMap.clear();
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ALOGD("Cleared current layer stats");
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}
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bool LayerStats::isEnabled() {
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return mEnabled;
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}
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void LayerStats::traverseLayerTreeStatsLocked(
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const std::vector<LayerProtoParser::Layer*>& layerTree,
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const LayerProtoParser::LayerGlobal& layerGlobal,
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std::vector<std::string>* const outLayerShapeVec) {
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for (const auto& layer : layerTree) {
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if (!layer) continue;
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traverseLayerTreeStatsLocked(layer->children, layerGlobal, outLayerShapeVec);
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std::string key = "";
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StringAppendF(&key, ",%s", layer->type.c_str());
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StringAppendF(&key, ",%s", layerCompositionType(layer->hwcCompositionType));
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StringAppendF(&key, ",%d", layer->isProtected);
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StringAppendF(&key, ",%s", layerTransform(layer->hwcTransform));
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StringAppendF(&key, ",%s", layerPixelFormat(layer->activeBuffer.format).c_str());
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StringAppendF(&key, ",%s", layer->dataspace.c_str());
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StringAppendF(&key, ",%s",
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destinationLocation(layer->hwcFrame.left, layerGlobal.resolution[0], true));
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StringAppendF(&key, ",%s",
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destinationLocation(layer->hwcFrame.top, layerGlobal.resolution[1], false));
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StringAppendF(&key, ",%s",
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destinationSize(layer->hwcFrame.right - layer->hwcFrame.left,
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layerGlobal.resolution[0], true));
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StringAppendF(&key, ",%s",
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destinationSize(layer->hwcFrame.bottom - layer->hwcFrame.top,
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layerGlobal.resolution[1], false));
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StringAppendF(&key, ",%s", scaleRatioWH(layer).c_str());
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StringAppendF(&key, ",%s", alpha(static_cast<float>(layer->color.a)));
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outLayerShapeVec->push_back(key);
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ALOGV("%s", key.c_str());
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}
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}
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void LayerStats::logLayerStats(const LayersProto& layersProto) {
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ATRACE_CALL();
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ALOGV("Logging");
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auto layerGlobal = LayerProtoParser::generateLayerGlobalInfo(layersProto);
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auto layerTree = LayerProtoParser::generateLayerTree(layersProto);
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std::vector<std::string> layerShapeVec;
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std::lock_guard<std::mutex> lock(mMutex);
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traverseLayerTreeStatsLocked(layerTree.topLevelLayers, layerGlobal, &layerShapeVec);
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std::string layerShapeKey =
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StringPrintf("%d,%s,%s,%s", static_cast<int32_t>(layerShapeVec.size()),
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layerGlobal.colorMode.c_str(), layerGlobal.colorTransform.c_str(),
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layerTransform(layerGlobal.globalTransform));
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ALOGV("%s", layerShapeKey.c_str());
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std::sort(layerShapeVec.begin(), layerShapeVec.end(), std::greater<std::string>());
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for (auto const& s : layerShapeVec) {
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layerShapeKey += s;
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}
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mLayerShapeStatsMap[layerShapeKey]++;
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}
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void LayerStats::dump(std::string& result) {
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ATRACE_CALL();
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ALOGD("Dumping");
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std::lock_guard<std::mutex> lock(mMutex);
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result.append("Frequency,LayerCount,ColorMode,ColorTransform,Orientation\n");
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result.append("LayerType,CompositionType,IsProtected,Transform,PixelFormat,Dataspace,");
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result.append("DstX,DstY,DstWidth,DstHeight,WScale,HScale,Alpha\n");
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for (auto& u : mLayerShapeStatsMap) {
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StringAppendF(&result, "%u,%s\n", u.second, u.first.c_str());
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}
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}
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const char* LayerStats::destinationLocation(int32_t location, int32_t range, bool isHorizontal) {
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static const char* locationArray[8] = {"0", "1/8", "1/4", "3/8", "1/2", "5/8", "3/4", "7/8"};
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int32_t ratio = location * 8 / range;
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if (ratio < 0) return "N/A";
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if (isHorizontal) {
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// X location is divided into 4 buckets {"0", "1/4", "1/2", "3/4"}
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if (ratio > 6) return "3/4";
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// use index 0, 2, 4, 6
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return locationArray[ratio & ~1];
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}
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if (ratio > 7) return "7/8";
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return locationArray[ratio];
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}
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const char* LayerStats::destinationSize(int32_t size, int32_t range, bool isWidth) {
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static const char* sizeArray[8] = {"1/8", "1/4", "3/8", "1/2", "5/8", "3/4", "7/8", "1"};
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int32_t ratio = size * 8 / range;
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if (ratio < 0) return "N/A";
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if (isWidth) {
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// width is divided into 4 buckets {"1/4", "1/2", "3/4", "1"}
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if (ratio > 6) return "1";
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// use index 1, 3, 5, 7
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return sizeArray[ratio | 1];
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}
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if (ratio > 7) return "1";
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return sizeArray[ratio];
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}
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const char* LayerStats::layerTransform(int32_t transform) {
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return getTransformName(static_cast<hwc_transform_t>(transform));
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}
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const char* LayerStats::layerCompositionType(int32_t compositionType) {
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return getCompositionName(static_cast<hwc2_composition_t>(compositionType));
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}
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std::string LayerStats::layerPixelFormat(int32_t pixelFormat) {
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return decodePixelFormat(pixelFormat);
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}
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std::string LayerStats::scaleRatioWH(const LayerProtoParser::Layer* layer) {
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if (!layer->type.compare("ColorLayer")) return "N/A,N/A";
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std::string ret = "";
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if (isRotated(layer->hwcTransform)) {
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ret += scaleRatio(layer->hwcFrame.right - layer->hwcFrame.left,
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static_cast<int32_t>(layer->hwcCrop.bottom - layer->hwcCrop.top));
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ret += ",";
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ret += scaleRatio(layer->hwcFrame.bottom - layer->hwcFrame.top,
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static_cast<int32_t>(layer->hwcCrop.right - layer->hwcCrop.left));
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} else {
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ret += scaleRatio(layer->hwcFrame.right - layer->hwcFrame.left,
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static_cast<int32_t>(layer->hwcCrop.right - layer->hwcCrop.left));
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ret += ",";
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ret += scaleRatio(layer->hwcFrame.bottom - layer->hwcFrame.top,
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static_cast<int32_t>(layer->hwcCrop.bottom - layer->hwcCrop.top));
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}
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return ret;
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}
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const char* LayerStats::scaleRatio(int32_t destinationScale, int32_t sourceScale) {
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// Make scale buckets from <1/64 to >= 16, to avoid floating point
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// calculation, x64 on destinationScale first
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int32_t scale = destinationScale * 64 / sourceScale;
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if (!scale) return "<1/64";
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if (scale < 2) return "1/64";
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if (scale < 4) return "1/32";
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if (scale < 8) return "1/16";
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if (scale < 16) return "1/8";
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if (scale < 32) return "1/4";
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if (scale < 64) return "1/2";
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if (scale < 128) return "1";
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if (scale < 256) return "2";
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if (scale < 512) return "4";
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if (scale < 1024) return "8";
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return ">=16";
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}
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const char* LayerStats::alpha(float a) {
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if (a == 1.0f) return "1.0";
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if (a > 0.9f) return "0.99";
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if (a > 0.8f) return "0.9";
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if (a > 0.7f) return "0.8";
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if (a > 0.6f) return "0.7";
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if (a > 0.5f) return "0.6";
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if (a > 0.4f) return "0.5";
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if (a > 0.3f) return "0.4";
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if (a > 0.2f) return "0.3";
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if (a > 0.1f) return "0.2";
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if (a > 0.0f) return "0.1";
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return "0.0";
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}
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bool LayerStats::isRotated(int32_t transform) {
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return transform & HWC_TRANSFORM_ROT_90;
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}
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bool LayerStats::isVFlipped(int32_t transform) {
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return transform & HWC_TRANSFORM_FLIP_V;
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}
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bool LayerStats::isHFlipped(int32_t transform) {
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return transform & HWC_TRANSFORM_FLIP_H;
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}
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} // namespace android
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