services/surfaceflinger/LayerStats.cpp - platform/frameworks/native - Git at Google

 /*
  * 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
	/*
	* 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