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