| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "media/midi/midi_manager_android.h" |
| |
| #include "base/android/build_info.h" |
| #include "base/command_line.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "base/strings/stringprintf.h" |
| #include "jni/MidiManagerAndroid_jni.h" |
| #include "media/midi/midi_device_android.h" |
| #include "media/midi/midi_manager_usb.h" |
| #include "media/midi/midi_output_port_android.h" |
| #include "media/midi/midi_switches.h" |
| #include "media/midi/usb_midi_device_factory_android.h" |
| |
| namespace media { |
| namespace midi { |
| |
| MidiManager* MidiManager::Create() { |
| auto sdk_version = base::android::BuildInfo::GetInstance()->sdk_int(); |
| if (sdk_version <= base::android::SDK_VERSION_LOLLIPOP_MR1 || |
| !base::CommandLine::ForCurrentProcess()->HasSwitch( |
| switches::kUseAndroidMidiApi)) { |
| return new MidiManagerUsb( |
| scoped_ptr<UsbMidiDevice::Factory>(new UsbMidiDeviceFactoryAndroid)); |
| } |
| |
| return new MidiManagerAndroid(); |
| } |
| |
| MidiManagerAndroid::MidiManagerAndroid() {} |
| |
| MidiManagerAndroid::~MidiManagerAndroid() {} |
| |
| void MidiManagerAndroid::StartInitialization() { |
| JNIEnv* env = base::android::AttachCurrentThread(); |
| |
| uintptr_t pointer = reinterpret_cast<uintptr_t>(this); |
| raw_manager_.Reset(Java_MidiManagerAndroid_create( |
| env, base::android::GetApplicationContext(), pointer)); |
| scheduler_.reset(new MidiScheduler(this)); |
| Java_MidiManagerAndroid_initialize(env, raw_manager_.obj()); |
| } |
| |
| void MidiManagerAndroid::DispatchSendMidiData(MidiManagerClient* client, |
| uint32 port_index, |
| const std::vector<uint8>& data, |
| double timestamp) { |
| if (port_index >= all_output_ports_.size()) { |
| // |port_index| is provided by a renderer so we can't believe that it is |
| // in the valid range. |
| return; |
| } |
| DCHECK_EQ(output_ports().size(), all_output_ports_.size()); |
| if (output_ports()[port_index].state == MIDI_PORT_CONNECTED) { |
| // We treat send call as implicit open. |
| // TODO(yhirano): Implement explicit open operation from the renderer. |
| if (all_output_ports_[port_index]->Open()) { |
| SetOutputPortState(port_index, MIDI_PORT_OPENED); |
| } else { |
| // We cannot open the port. It's useless to send data to such a port. |
| return; |
| } |
| } |
| |
| // output_streams_[port_index] is alive unless MidiManagerUsb is deleted. |
| // The task posted to the MidiScheduler will be disposed safely on deleting |
| // the scheduler. |
| scheduler_->PostSendDataTask( |
| client, data.size(), timestamp, |
| base::Bind(&MidiOutputPortAndroid::Send, |
| base::Unretained(all_output_ports_[port_index]), data)); |
| } |
| |
| void MidiManagerAndroid::OnReceivedData(MidiInputPortAndroid* port, |
| const uint8* data, |
| size_t size, |
| base::TimeTicks timestamp) { |
| const auto i = input_port_to_index_.find(port); |
| DCHECK(input_port_to_index_.end() != i); |
| ReceiveMidiData(i->second, data, size, timestamp); |
| } |
| |
| void MidiManagerAndroid::OnInitialized(JNIEnv* env, |
| jobject caller, |
| jobjectArray devices) { |
| jsize length = env->GetArrayLength(devices); |
| |
| for (jsize i = 0; i < length; ++i) { |
| jobject raw_device = env->GetObjectArrayElement(devices, i); |
| AddDevice(make_scoped_ptr(new MidiDeviceAndroid(env, raw_device, this))); |
| } |
| CompleteInitialization(Result::OK); |
| } |
| |
| void MidiManagerAndroid::OnAttached(JNIEnv* env, |
| jobject caller, |
| jobject raw_device) { |
| AddDevice(make_scoped_ptr(new MidiDeviceAndroid(env, raw_device, this))); |
| } |
| |
| void MidiManagerAndroid::OnDetached(JNIEnv* env, |
| jobject caller, |
| jobject raw_device) { |
| for (const auto& device : devices_) { |
| if (device->HasRawDevice(env, raw_device)) { |
| for (const auto& port : device->input_ports()) { |
| DCHECK(input_port_to_index_.end() != input_port_to_index_.find(port)); |
| size_t index = input_port_to_index_[port]; |
| SetInputPortState(index, MIDI_PORT_DISCONNECTED); |
| } |
| for (const auto& port : device->output_ports()) { |
| DCHECK(output_port_to_index_.end() != output_port_to_index_.find(port)); |
| size_t index = output_port_to_index_[port]; |
| SetOutputPortState(index, MIDI_PORT_DISCONNECTED); |
| } |
| } |
| } |
| } |
| |
| void MidiManagerAndroid::AddDevice(scoped_ptr<MidiDeviceAndroid> device) { |
| for (auto& port : device->input_ports()) { |
| // We implicitly open input ports here, because there are no signal |
| // from the renderer when to open. |
| // TODO(yhirano): Implement open operation in Blink. |
| MidiPortState state = port->Open() ? MIDI_PORT_OPENED : MIDI_PORT_CONNECTED; |
| |
| const size_t index = all_input_ports_.size(); |
| all_input_ports_.push_back(port); |
| // Port ID must be unique in a MIDI manager. This ID setting is |
| // sufficiently unique although there is no user-friendly meaning. |
| // TODO(yhirano): Use a hashed string as ID. |
| const std::string id( |
| base::StringPrintf("native:port-in-%ld", static_cast<long>(index))); |
| |
| input_port_to_index_.insert(std::make_pair(port, index)); |
| AddInputPort(MidiPortInfo(id, device->GetManufacturer(), |
| device->GetProductName(), |
| device->GetDeviceVersion(), state)); |
| } |
| for (const auto& port : device->output_ports()) { |
| const size_t index = all_output_ports_.size(); |
| all_output_ports_.push_back(port); |
| |
| // Port ID must be unique in a MIDI manager. This ID setting is |
| // sufficiently unique although there is no user-friendly meaning. |
| // TODO(yhirano): Use a hashed string as ID. |
| const std::string id( |
| base::StringPrintf("native:port-out-%ld", static_cast<long>(index))); |
| |
| output_port_to_index_.insert(std::make_pair(port, index)); |
| AddOutputPort( |
| MidiPortInfo(id, device->GetManufacturer(), device->GetProductName(), |
| device->GetDeviceVersion(), MIDI_PORT_CONNECTED)); |
| } |
| devices_.push_back(device.release()); |
| } |
| |
| bool MidiManagerAndroid::Register(JNIEnv* env) { |
| return RegisterNativesImpl(env); |
| } |
| |
| } // namespace midi |
| } // namespace media |