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 <ScopedPrimitiveArray.h>
23#include <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        jint 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    if (jdata != nullptr) {
47        ScopedByteArrayRO buffer(env, jdata);
48        LOG_ALWAYS_FATAL_IF(buffer.size() != sizeof(ProfileData),
49                "Buffer size %zu doesn't match expected %zu!", buffer.size(), sizeof(ProfileData));
50        data = reinterpret_cast<const ProfileData*>(buffer.get());
51    }
52    if (jpath != nullptr) {
53        ScopedUtfChars pathChars(env, jpath);
54        LOG_ALWAYS_FATAL_IF(pathChars.size() <= 0 || !pathChars.c_str(), "Failed to get path chars");
55        path.assign(pathChars.c_str(), pathChars.size());
56    }
57    ScopedUtfChars packageChars(env, jpackage);
58    LOG_ALWAYS_FATAL_IF(packageChars.size() <= 0 || !packageChars.c_str(), "Failed to get path chars");
59    GraphicsStatsService::Dump* dump = reinterpret_cast<GraphicsStatsService::Dump*>(dumpPtr);
60    LOG_ALWAYS_FATAL_IF(!dump, "null passed for dump pointer");
61
62    const std::string package(packageChars.c_str(), packageChars.size());
63    GraphicsStatsService::addToDump(dump, path, package, versionCode, startTime, endTime, data);
64}
65
66static void addFileToDump(JNIEnv* env, jobject, jlong dumpPtr, jstring jpath) {
67    ScopedUtfChars pathChars(env, jpath);
68    LOG_ALWAYS_FATAL_IF(pathChars.size() <= 0 || !pathChars.c_str(), "Failed to get path chars");
69    const std::string path(pathChars.c_str(), pathChars.size());
70    GraphicsStatsService::Dump* dump = reinterpret_cast<GraphicsStatsService::Dump*>(dumpPtr);
71    GraphicsStatsService::addToDump(dump, path);
72}
73
74static void finishDump(JNIEnv*, jobject, jlong dumpPtr) {
75    GraphicsStatsService::Dump* dump = reinterpret_cast<GraphicsStatsService::Dump*>(dumpPtr);
76    GraphicsStatsService::finishDump(dump);
77}
78
79static void saveBuffer(JNIEnv* env, jobject clazz, jstring jpath, jstring jpackage,
80        jint versionCode, jlong startTime, jlong endTime, jbyteArray jdata) {
81    ScopedByteArrayRO buffer(env, jdata);
82    LOG_ALWAYS_FATAL_IF(buffer.size() != sizeof(ProfileData),
83            "Buffer size %zu doesn't match expected %zu!", buffer.size(), sizeof(ProfileData));
84    ScopedUtfChars pathChars(env, jpath);
85    LOG_ALWAYS_FATAL_IF(pathChars.size() <= 0 || !pathChars.c_str(), "Failed to get path chars");
86    ScopedUtfChars packageChars(env, jpackage);
87    LOG_ALWAYS_FATAL_IF(packageChars.size() <= 0 || !packageChars.c_str(), "Failed to get path chars");
88
89    const std::string path(pathChars.c_str(), pathChars.size());
90    const std::string package(packageChars.c_str(), packageChars.size());
91    const ProfileData* data = reinterpret_cast<const ProfileData*>(buffer.get());
92    GraphicsStatsService::saveBuffer(path, package, versionCode, startTime, endTime, data);
93}
94
95static const JNINativeMethod sMethods[] = {
96    { "nGetAshmemSize", "()I", (void*) getAshmemSize },
97    { "nCreateDump", "(IZ)J", (void*) createDump },
98    { "nAddToDump", "(JLjava/lang/String;Ljava/lang/String;IJJ[B)V", (void*) addToDump },
99    { "nAddToDump", "(JLjava/lang/String;)V", (void*) addFileToDump },
100    { "nFinishDump", "(J)V", (void*) finishDump },
101    { "nSaveBuffer", "(Ljava/lang/String;Ljava/lang/String;IJJ[B)V", (void*) saveBuffer },
102};
103
104int register_android_server_GraphicsStatsService(JNIEnv* env)
105{
106    return jniRegisterNativeMethods(env, "com/android/server/GraphicsStatsService",
107                                    sMethods, NELEM(sMethods));
108}
109
110} // namespace android