1/*
2 * Copyright (C) 2017 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#define LOG_TAG "GraphicsStatsService"
18
19#include <jni.h>
20#include <log/log.h>
21#include <nativehelper/JNIHelp.h>
22#include <nativehelper/ScopedPrimitiveArray.h>
23#include <nativehelper/ScopedUtfChars.h>
24#include <JankTracker.h>
25#include <service/GraphicsStatsService.h>
26
27namespace android {
28
29using namespace android::uirenderer;
30
31static jint getAshmemSize(JNIEnv*, jobject) {
32    return sizeof(ProfileData);
33}
34
35static jlong createDump(JNIEnv*, jobject, jint fd, jboolean isProto) {
36    GraphicsStatsService::Dump* dump = GraphicsStatsService::createDump(fd, isProto
37            ? GraphicsStatsService::DumpType::Protobuf : GraphicsStatsService::DumpType::Text);
38    return reinterpret_cast<jlong>(dump);
39}
40
41static void addToDump(JNIEnv* env, jobject, jlong dumpPtr, jstring jpath, jstring jpackage,
42        jlong versionCode, jlong startTime, jlong endTime, jbyteArray jdata) {
43    std::string path;
44    const ProfileData* data = nullptr;
45    LOG_ALWAYS_FATAL_IF(jdata == nullptr && jpath == nullptr, "Path and data can't both be null");
46    ScopedByteArrayRO buffer{env};
47    if (jdata != nullptr) {
48        buffer.reset(jdata);
49        LOG_ALWAYS_FATAL_IF(buffer.size() != sizeof(ProfileData),
50                "Buffer size %zu doesn't match expected %zu!", buffer.size(), sizeof(ProfileData));
51        data = reinterpret_cast<const ProfileData*>(buffer.get());
52    }
53    if (jpath != nullptr) {
54        ScopedUtfChars pathChars(env, jpath);
55        LOG_ALWAYS_FATAL_IF(pathChars.size() <= 0 || !pathChars.c_str(), "Failed to get path chars");
56        path.assign(pathChars.c_str(), pathChars.size());
57    }
58    ScopedUtfChars packageChars(env, jpackage);
59    LOG_ALWAYS_FATAL_IF(packageChars.size() <= 0 || !packageChars.c_str(), "Failed to get path chars");
60    GraphicsStatsService::Dump* dump = reinterpret_cast<GraphicsStatsService::Dump*>(dumpPtr);
61    LOG_ALWAYS_FATAL_IF(!dump, "null passed for dump pointer");
62
63    const std::string package(packageChars.c_str(), packageChars.size());
64    GraphicsStatsService::addToDump(dump, path, package, versionCode, startTime, endTime, data);
65}
66
67static void addFileToDump(JNIEnv* env, jobject, jlong dumpPtr, jstring jpath) {
68    ScopedUtfChars pathChars(env, jpath);
69    LOG_ALWAYS_FATAL_IF(pathChars.size() <= 0 || !pathChars.c_str(), "Failed to get path chars");
70    const std::string path(pathChars.c_str(), pathChars.size());
71    GraphicsStatsService::Dump* dump = reinterpret_cast<GraphicsStatsService::Dump*>(dumpPtr);
72    GraphicsStatsService::addToDump(dump, path);
73}
74
75static void finishDump(JNIEnv*, jobject, jlong dumpPtr) {
76    GraphicsStatsService::Dump* dump = reinterpret_cast<GraphicsStatsService::Dump*>(dumpPtr);
77    GraphicsStatsService::finishDump(dump);
78}
79
80static void saveBuffer(JNIEnv* env, jobject clazz, jstring jpath, jstring jpackage,
81        jlong versionCode, jlong startTime, jlong endTime, jbyteArray jdata) {
82    ScopedByteArrayRO buffer(env, jdata);
83    LOG_ALWAYS_FATAL_IF(buffer.size() != sizeof(ProfileData),
84            "Buffer size %zu doesn't match expected %zu!", buffer.size(), sizeof(ProfileData));
85    ScopedUtfChars pathChars(env, jpath);
86    LOG_ALWAYS_FATAL_IF(pathChars.size() <= 0 || !pathChars.c_str(), "Failed to get path chars");
87    ScopedUtfChars packageChars(env, jpackage);
88    LOG_ALWAYS_FATAL_IF(packageChars.size() <= 0 || !packageChars.c_str(), "Failed to get path chars");
89
90    const std::string path(pathChars.c_str(), pathChars.size());
91    const std::string package(packageChars.c_str(), packageChars.size());
92    const ProfileData* data = reinterpret_cast<const ProfileData*>(buffer.get());
93    GraphicsStatsService::saveBuffer(path, package, versionCode, startTime, endTime, data);
94}
95
96static const JNINativeMethod sMethods[] = {
97    { "nGetAshmemSize", "()I", (void*) getAshmemSize },
98    { "nCreateDump", "(IZ)J", (void*) createDump },
99    { "nAddToDump", "(JLjava/lang/String;Ljava/lang/String;JJJ[B)V", (void*) addToDump },
100    { "nAddToDump", "(JLjava/lang/String;)V", (void*) addFileToDump },
101    { "nFinishDump", "(J)V", (void*) finishDump },
102    { "nSaveBuffer", "(Ljava/lang/String;Ljava/lang/String;JJJ[B)V", (void*) saveBuffer },
103};
104
105int register_android_server_GraphicsStatsService(JNIEnv* env)
106{
107    return jniRegisterNativeMethods(env, "com/android/server/GraphicsStatsService",
108                                    sMethods, NELEM(sMethods));
109}
110
111} // namespace android