| /* |
| * Copyright 2015 The WebRTC project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| #include "webrtc/api/android/jni/classreferenceholder.h" |
| |
| #include "webrtc/api/android/jni/jni_helpers.h" |
| |
| namespace webrtc_jni { |
| |
| // ClassReferenceHolder holds global reference to Java classes in app/webrtc. |
| class ClassReferenceHolder { |
| public: |
| explicit ClassReferenceHolder(JNIEnv* jni); |
| ~ClassReferenceHolder(); |
| |
| void FreeReferences(JNIEnv* jni); |
| jclass GetClass(const std::string& name); |
| |
| private: |
| void LoadClass(JNIEnv* jni, const std::string& name); |
| |
| std::map<std::string, jclass> classes_; |
| }; |
| |
| // Allocated in LoadGlobalClassReferenceHolder(), |
| // freed in FreeGlobalClassReferenceHolder(). |
| static ClassReferenceHolder* g_class_reference_holder = nullptr; |
| |
| void LoadGlobalClassReferenceHolder() { |
| RTC_CHECK(g_class_reference_holder == nullptr); |
| g_class_reference_holder = new ClassReferenceHolder(GetEnv()); |
| } |
| |
| void FreeGlobalClassReferenceHolder() { |
| g_class_reference_holder->FreeReferences(AttachCurrentThreadIfNeeded()); |
| delete g_class_reference_holder; |
| g_class_reference_holder = nullptr; |
| } |
| |
| ClassReferenceHolder::ClassReferenceHolder(JNIEnv* jni) { |
| LoadClass(jni, "android/graphics/SurfaceTexture"); |
| LoadClass(jni, "java/nio/ByteBuffer"); |
| LoadClass(jni, "java/util/ArrayList"); |
| LoadClass(jni, "org/webrtc/AudioTrack"); |
| LoadClass(jni, "org/webrtc/Camera1Enumerator"); |
| LoadClass(jni, "org/webrtc/Camera2Enumerator"); |
| LoadClass(jni, "org/webrtc/CameraEnumerationAndroid"); |
| LoadClass(jni, "org/webrtc/DataChannel"); |
| LoadClass(jni, "org/webrtc/DataChannel$Buffer"); |
| LoadClass(jni, "org/webrtc/DataChannel$Init"); |
| LoadClass(jni, "org/webrtc/DataChannel$State"); |
| LoadClass(jni, "org/webrtc/EglBase"); |
| LoadClass(jni, "org/webrtc/EglBase$Context"); |
| LoadClass(jni, "org/webrtc/EglBase14$Context"); |
| LoadClass(jni, "org/webrtc/IceCandidate"); |
| LoadClass(jni, "org/webrtc/MediaCodecVideoEncoder"); |
| LoadClass(jni, "org/webrtc/MediaCodecVideoEncoder$OutputBufferInfo"); |
| LoadClass(jni, "org/webrtc/MediaCodecVideoEncoder$VideoCodecType"); |
| LoadClass(jni, "org/webrtc/MediaCodecVideoDecoder"); |
| LoadClass(jni, "org/webrtc/MediaCodecVideoDecoder$DecodedTextureBuffer"); |
| LoadClass(jni, "org/webrtc/MediaCodecVideoDecoder$DecodedOutputBuffer"); |
| LoadClass(jni, "org/webrtc/MediaCodecVideoDecoder$VideoCodecType"); |
| LoadClass(jni, "org/webrtc/MediaSource$State"); |
| LoadClass(jni, "org/webrtc/MediaStream"); |
| LoadClass(jni, "org/webrtc/MediaStreamTrack$State"); |
| LoadClass(jni, "org/webrtc/Metrics"); |
| LoadClass(jni, "org/webrtc/Metrics$HistogramInfo"); |
| LoadClass(jni, "org/webrtc/NetworkMonitor"); |
| LoadClass(jni, "org/webrtc/NetworkMonitorAutoDetect$ConnectionType"); |
| LoadClass(jni, "org/webrtc/NetworkMonitorAutoDetect$IPAddress"); |
| LoadClass(jni, "org/webrtc/NetworkMonitorAutoDetect$NetworkInformation"); |
| LoadClass(jni, "org/webrtc/PeerConnectionFactory"); |
| LoadClass(jni, "org/webrtc/PeerConnection$BundlePolicy"); |
| LoadClass(jni, "org/webrtc/PeerConnection$ContinualGatheringPolicy"); |
| LoadClass(jni, "org/webrtc/PeerConnection$RtcpMuxPolicy"); |
| LoadClass(jni, "org/webrtc/PeerConnection$IceConnectionState"); |
| LoadClass(jni, "org/webrtc/PeerConnection$IceGatheringState"); |
| LoadClass(jni, "org/webrtc/PeerConnection$IceTransportsType"); |
| LoadClass(jni, "org/webrtc/PeerConnection$TcpCandidatePolicy"); |
| LoadClass(jni, "org/webrtc/PeerConnection$CandidateNetworkPolicy"); |
| LoadClass(jni, "org/webrtc/PeerConnection$KeyType"); |
| LoadClass(jni, "org/webrtc/PeerConnection$SignalingState"); |
| LoadClass(jni, "org/webrtc/RtpReceiver"); |
| LoadClass(jni, "org/webrtc/RtpSender"); |
| LoadClass(jni, "org/webrtc/SessionDescription"); |
| LoadClass(jni, "org/webrtc/SessionDescription$Type"); |
| LoadClass(jni, "org/webrtc/StatsReport"); |
| LoadClass(jni, "org/webrtc/StatsReport$Value"); |
| LoadClass(jni, "org/webrtc/SurfaceTextureHelper"); |
| LoadClass(jni, "org/webrtc/VideoCapturer"); |
| LoadClass(jni, "org/webrtc/VideoRenderer$I420Frame"); |
| LoadClass(jni, "org/webrtc/VideoTrack"); |
| } |
| |
| ClassReferenceHolder::~ClassReferenceHolder() { |
| RTC_CHECK(classes_.empty()) << "Must call FreeReferences() before dtor!"; |
| } |
| |
| void ClassReferenceHolder::FreeReferences(JNIEnv* jni) { |
| for (std::map<std::string, jclass>::const_iterator it = classes_.begin(); |
| it != classes_.end(); ++it) { |
| jni->DeleteGlobalRef(it->second); |
| } |
| classes_.clear(); |
| } |
| |
| jclass ClassReferenceHolder::GetClass(const std::string& name) { |
| std::map<std::string, jclass>::iterator it = classes_.find(name); |
| RTC_CHECK(it != classes_.end()) << "Unexpected GetClass() call for: " << name; |
| return it->second; |
| } |
| |
| void ClassReferenceHolder::LoadClass(JNIEnv* jni, const std::string& name) { |
| jclass localRef = jni->FindClass(name.c_str()); |
| CHECK_EXCEPTION(jni) << "error during FindClass: " << name; |
| RTC_CHECK(localRef) << name; |
| jclass globalRef = reinterpret_cast<jclass>(jni->NewGlobalRef(localRef)); |
| CHECK_EXCEPTION(jni) << "error during NewGlobalRef: " << name; |
| RTC_CHECK(globalRef) << name; |
| bool inserted = classes_.insert(std::make_pair(name, globalRef)).second; |
| RTC_CHECK(inserted) << "Duplicate class name: " << name; |
| } |
| |
| // Returns a global reference guaranteed to be valid for the lifetime of the |
| // process. |
| jclass FindClass(JNIEnv* jni, const char* name) { |
| return g_class_reference_holder->GetClass(name); |
| } |
| |
| } // namespace webrtc_jni |