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1 // Copyright 2017 The Chromium Authors. All rights reserved. | 1 // Copyright 2017 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "media/midi/dynamically_initialized_midi_manager_win.h" | 5 #include "media/midi/dynamically_initialized_midi_manager_win.h" |
6 | 6 |
7 #include <windows.h> | 7 #include <windows.h> |
8 | 8 |
9 #include <mmreg.h> | 9 #include <mmreg.h> |
10 #include <mmsystem.h> | 10 #include <mmsystem.h> |
11 | 11 |
12 #include <algorithm> | 12 #include <algorithm> |
13 #include <string> | 13 #include <string> |
14 | 14 |
15 #include "base/callback.h" | 15 #include "base/callback.h" |
16 #include "base/logging.h" | 16 #include "base/logging.h" |
17 #include "base/memory/ptr_util.h" | 17 #include "base/memory/ptr_util.h" |
18 #include "base/strings/string16.h" | 18 #include "base/strings/string16.h" |
19 #include "base/strings/stringprintf.h" | 19 #include "base/strings/stringprintf.h" |
20 #include "base/strings/utf_string_conversions.h" | 20 #include "base/strings/utf_string_conversions.h" |
21 #include "base/synchronization/lock.h" | 21 #include "base/synchronization/lock.h" |
22 #include "media/midi/midi_port_info.h" | 22 #include "media/midi/midi_port_info.h" |
23 #include "media/midi/midi_service.h" | 23 #include "media/midi/midi_service.h" |
24 | 24 |
25 namespace midi { | 25 namespace midi { |
26 | 26 |
27 namespace { | 27 namespace { |
28 | 28 |
29 // Assumes that nullptr represents an invalid MIDI handle. | |
30 constexpr HMIDIIN kInvalidInHandle = nullptr; | |
31 constexpr HMIDIOUT kInvalidOutHandle = nullptr; | |
32 | |
29 // Global variables to identify MidiManager instance. | 33 // Global variables to identify MidiManager instance. |
30 constexpr int kInvalidInstanceId = -1; | 34 constexpr int kInvalidInstanceId = -1; |
31 int g_active_instance_id = kInvalidInstanceId; | 35 int g_active_instance_id = kInvalidInstanceId; |
32 DynamicallyInitializedMidiManagerWin* g_manager_instance = nullptr; | 36 DynamicallyInitializedMidiManagerWin* g_manager_instance = nullptr; |
33 | 37 |
34 // Obtains base::Lock instance pointer to lock instance_id. | 38 // Obtains base::Lock instance pointer to lock instance_id. |
35 base::Lock* GetInstanceIdLock() { | 39 base::Lock* GetInstanceIdLock() { |
36 static base::Lock* lock = new base::Lock; | 40 static base::Lock* lock = new base::Lock; |
37 return lock; | 41 return lock; |
38 } | 42 } |
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62 base::AutoLock lock(*GetInstanceIdLock()); | 66 base::AutoLock lock(*GetInstanceIdLock()); |
63 if (instance_id != g_active_instance_id) | 67 if (instance_id != g_active_instance_id) |
64 return; | 68 return; |
65 } | 69 } |
66 task.Run(); | 70 task.Run(); |
67 } | 71 } |
68 | 72 |
69 // TODO(toyoshim): Factor out TaskRunner related functionaliries above, and | 73 // TODO(toyoshim): Factor out TaskRunner related functionaliries above, and |
70 // deprecate MidiScheduler. It should be available via MidiManager::scheduler(). | 74 // deprecate MidiScheduler. It should be available via MidiManager::scheduler(). |
71 | 75 |
76 // Helper functions to close MIDI device handles on TaskRunner asynchronously. | |
77 void FinalizeInPort(HMIDIIN handle) { | |
78 midiInClose(handle); | |
79 } | |
80 | |
81 void FinalizeOutPort(HMIDIOUT handle) { | |
82 midiOutClose(handle); | |
83 } | |
84 | |
85 // Handles MIDI input port callbacks that runs on a system provided thread. | |
86 void CALLBACK HandleMidiInCallback(HMIDIIN hmi, | |
87 UINT msg, | |
88 DWORD_PTR instance, | |
89 DWORD_PTR param1, | |
90 DWORD_PTR param2) { | |
91 // TODO(toyoshim): Following patches will implement actual functions. | |
92 } | |
93 | |
94 // Handles MIDI output port callbacks that runs on a system provided thread. | |
95 void CALLBACK HandleMidiOutCallback(HMIDIOUT hmo, | |
96 UINT msg, | |
97 DWORD_PTR instance, | |
98 DWORD_PTR param1, | |
99 DWORD_PTR param2) { | |
100 // TODO(toyoshim): Following patches will implement actual functions. | |
101 } | |
102 | |
72 class Port { | 103 class Port { |
73 public: | 104 public: |
74 Port(const std::string& type, | 105 Port(const std::string& type, |
75 uint32_t device_id, | 106 uint32_t device_id, |
76 uint16_t manufacturer_id, | 107 uint16_t manufacturer_id, |
77 uint16_t product_id, | 108 uint16_t product_id, |
78 uint32_t driver_version, | 109 uint32_t driver_version, |
79 const std::string& product_name) | 110 const std::string& product_name) |
80 : index_(0u), | 111 : index_(0u), |
81 type_(type), | 112 type_(type), |
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155 // TODO(toyoshim): Following patches will implement actual functions. | 186 // TODO(toyoshim): Following patches will implement actual functions. |
156 class DynamicallyInitializedMidiManagerWin::InPort final : public Port { | 187 class DynamicallyInitializedMidiManagerWin::InPort final : public Port { |
157 public: | 188 public: |
158 InPort(UINT device_id, const MIDIINCAPS2W& caps) | 189 InPort(UINT device_id, const MIDIINCAPS2W& caps) |
159 : Port("input", | 190 : Port("input", |
160 device_id, | 191 device_id, |
161 caps.wMid, | 192 caps.wMid, |
162 caps.wPid, | 193 caps.wPid, |
163 caps.vDriverVersion, | 194 caps.vDriverVersion, |
164 base::WideToUTF8( | 195 base::WideToUTF8( |
165 base::string16(caps.szPname, wcslen(caps.szPname)))) {} | 196 base::string16(caps.szPname, wcslen(caps.szPname)))), |
197 in_handle_(kInvalidInHandle) {} | |
166 | 198 |
167 static std::vector<std::unique_ptr<InPort>> EnumerateActivePorts() { | 199 static std::vector<std::unique_ptr<InPort>> EnumerateActivePorts() { |
168 std::vector<std::unique_ptr<InPort>> ports; | 200 std::vector<std::unique_ptr<InPort>> ports; |
169 const UINT num_devices = midiInGetNumDevs(); | 201 const UINT num_devices = midiInGetNumDevs(); |
170 for (UINT device_id = 0; device_id < num_devices; ++device_id) { | 202 for (UINT device_id = 0; device_id < num_devices; ++device_id) { |
171 MIDIINCAPS2W caps; | 203 MIDIINCAPS2W caps; |
172 MMRESULT result = midiInGetDevCaps( | 204 MMRESULT result = midiInGetDevCaps( |
173 device_id, reinterpret_cast<LPMIDIINCAPSW>(&caps), sizeof(caps)); | 205 device_id, reinterpret_cast<LPMIDIINCAPSW>(&caps), sizeof(caps)); |
174 if (result != MMSYSERR_NOERROR) { | 206 if (result != MMSYSERR_NOERROR) { |
175 LOG(ERROR) << "midiInGetDevCaps fails on device " << device_id; | 207 LOG(ERROR) << "midiInGetDevCaps fails on device " << device_id; |
176 continue; | 208 continue; |
177 } | 209 } |
178 ports.push_back(base::MakeUnique<InPort>(device_id, caps)); | 210 ports.push_back(base::MakeUnique<InPort>(device_id, caps)); |
179 } | 211 } |
180 return ports; | 212 return ports; |
181 } | 213 } |
182 | 214 |
215 void Finalize(scoped_refptr<base::SingleThreadTaskRunner> runner) { | |
Takashi Toyoshima
2017/02/22 10:00:23
Finalize() runs on the I/O thread, and others run
Takashi Toyoshima
2017/02/23 02:42:45
Ah, no. Now I remember that this was intentional.
Takashi Toyoshima
2017/02/23 03:01:42
https://codereview.chromium.org/2686043003/diff/14
| |
216 if (in_handle_ != kInvalidInHandle) { | |
217 runner->PostTask(FROM_HERE, base::Bind(&FinalizeInPort, in_handle_)); | |
218 } | |
219 } | |
220 | |
183 void NotifyPortStateSet(DynamicallyInitializedMidiManagerWin* manager) { | 221 void NotifyPortStateSet(DynamicallyInitializedMidiManagerWin* manager) { |
184 manager->PostReplyTask( | 222 manager->PostReplyTask( |
185 base::Bind(&DynamicallyInitializedMidiManagerWin::SetInputPortState, | 223 base::Bind(&DynamicallyInitializedMidiManagerWin::SetInputPortState, |
186 base::Unretained(manager), index_, info_.state)); | 224 base::Unretained(manager), index_, info_.state)); |
187 } | 225 } |
188 | 226 |
189 void NotifyPortAdded(DynamicallyInitializedMidiManagerWin* manager) { | 227 void NotifyPortAdded(DynamicallyInitializedMidiManagerWin* manager) { |
190 manager->PostReplyTask( | 228 manager->PostReplyTask( |
191 base::Bind(&DynamicallyInitializedMidiManagerWin::AddInputPort, | 229 base::Bind(&DynamicallyInitializedMidiManagerWin::AddInputPort, |
192 base::Unretained(manager), info_)); | 230 base::Unretained(manager), info_)); |
193 } | 231 } |
232 | |
233 // Port overrides: | |
234 bool Disconnect() override { | |
235 if (in_handle_ != kInvalidInHandle) { | |
236 // Following API call may fail because device was already disconnected. | |
237 // But just in case. | |
238 midiInClose(in_handle_); | |
239 in_handle_ = kInvalidInHandle; | |
240 } | |
241 return Port::Disconnect(); | |
242 } | |
243 | |
244 void Open() override { | |
245 // TODO(toyoshim): Pass instance_id to implement HandleMidiInCallback. | |
246 MMRESULT result = | |
247 midiInOpen(&in_handle_, device_id_, | |
248 reinterpret_cast<DWORD_PTR>(&HandleMidiInCallback), 0, | |
249 CALLBACK_FUNCTION); | |
250 if (result == MMSYSERR_NOERROR) | |
251 Port::Open(); | |
252 else | |
253 Disconnect(); | |
254 } | |
255 | |
256 private: | |
257 HMIDIIN in_handle_; | |
194 }; | 258 }; |
195 | 259 |
196 // TODO(toyoshim): Following patches will implement actual functions. | 260 // TODO(toyoshim): Following patches will implement actual functions. |
197 class DynamicallyInitializedMidiManagerWin::OutPort final : public Port { | 261 class DynamicallyInitializedMidiManagerWin::OutPort final : public Port { |
198 public: | 262 public: |
199 OutPort(UINT device_id, const MIDIOUTCAPS2W& caps) | 263 OutPort(UINT device_id, const MIDIOUTCAPS2W& caps) |
200 : Port("output", | 264 : Port("output", |
201 device_id, | 265 device_id, |
202 caps.wMid, | 266 caps.wMid, |
203 caps.wPid, | 267 caps.wPid, |
204 caps.vDriverVersion, | 268 caps.vDriverVersion, |
205 base::WideToUTF8( | 269 base::WideToUTF8( |
206 base::string16(caps.szPname, wcslen(caps.szPname)))), | 270 base::string16(caps.szPname, wcslen(caps.szPname)))), |
207 software_(caps.wTechnology == MOD_SWSYNTH) {} | 271 software_(caps.wTechnology == MOD_SWSYNTH), |
272 out_handle_(kInvalidOutHandle) {} | |
208 | 273 |
209 static std::vector<std::unique_ptr<OutPort>> EnumerateActivePorts() { | 274 static std::vector<std::unique_ptr<OutPort>> EnumerateActivePorts() { |
210 std::vector<std::unique_ptr<OutPort>> ports; | 275 std::vector<std::unique_ptr<OutPort>> ports; |
211 const UINT num_devices = midiOutGetNumDevs(); | 276 const UINT num_devices = midiOutGetNumDevs(); |
212 for (UINT device_id = 0; device_id < num_devices; ++device_id) { | 277 for (UINT device_id = 0; device_id < num_devices; ++device_id) { |
213 MIDIOUTCAPS2W caps; | 278 MIDIOUTCAPS2W caps; |
214 MMRESULT result = midiOutGetDevCaps( | 279 MMRESULT result = midiOutGetDevCaps( |
215 device_id, reinterpret_cast<LPMIDIOUTCAPSW>(&caps), sizeof(caps)); | 280 device_id, reinterpret_cast<LPMIDIOUTCAPSW>(&caps), sizeof(caps)); |
216 if (result != MMSYSERR_NOERROR) { | 281 if (result != MMSYSERR_NOERROR) { |
217 LOG(ERROR) << "midiOutGetDevCaps fails on device " << device_id; | 282 LOG(ERROR) << "midiOutGetDevCaps fails on device " << device_id; |
218 continue; | 283 continue; |
219 } | 284 } |
220 ports.push_back(base::MakeUnique<OutPort>(device_id, caps)); | 285 ports.push_back(base::MakeUnique<OutPort>(device_id, caps)); |
221 } | 286 } |
222 return ports; | 287 return ports; |
223 } | 288 } |
224 | 289 |
290 void Finalize(scoped_refptr<base::SingleThreadTaskRunner> runner) { | |
291 if (out_handle_ != kInvalidOutHandle) | |
292 runner->PostTask(FROM_HERE, base::Bind(&FinalizeOutPort, out_handle_)); | |
293 } | |
294 | |
295 void NotifyPortStateSet(DynamicallyInitializedMidiManagerWin* manager) { | |
296 manager->PostReplyTask( | |
297 base::Bind(&DynamicallyInitializedMidiManagerWin::SetOutputPortState, | |
298 base::Unretained(manager), index_, info_.state)); | |
299 } | |
300 | |
301 void NotifyPortAdded(DynamicallyInitializedMidiManagerWin* manager) { | |
302 manager->PostReplyTask( | |
303 base::Bind(&DynamicallyInitializedMidiManagerWin::AddOutputPort, | |
304 base::Unretained(manager), info_)); | |
305 } | |
306 | |
225 // Port overrides: | 307 // Port overrides: |
226 bool Connect() override { | 308 bool Connect() override { |
227 // Until |software| option is supported, disable Microsoft GS Wavetable | 309 // Until |software| option is supported, disable Microsoft GS Wavetable |
228 // Synth that has a known security issue. | 310 // Synth that has a known security issue. |
229 if (software_ && manufacturer_id_ == MM_MICROSOFT && | 311 if (software_ && manufacturer_id_ == MM_MICROSOFT && |
230 (product_id_ == MM_MSFT_WDMAUDIO_MIDIOUT || | 312 (product_id_ == MM_MSFT_WDMAUDIO_MIDIOUT || |
231 product_id_ == MM_MSFT_GENERIC_MIDISYNTH)) { | 313 product_id_ == MM_MSFT_GENERIC_MIDISYNTH)) { |
232 return false; | 314 return false; |
233 } | 315 } |
234 return Port::Connect(); | 316 return Port::Connect(); |
235 } | 317 } |
236 | 318 |
237 // Port Overrides: | 319 bool Disconnect() override { |
238 void NotifyPortStateSet(DynamicallyInitializedMidiManagerWin* manager) { | 320 if (out_handle_ != kInvalidOutHandle) { |
239 manager->PostReplyTask( | 321 // Following API call may fail because device was already disconnected. |
240 base::Bind(&DynamicallyInitializedMidiManagerWin::SetOutputPortState, | 322 // But just in case. |
241 base::Unretained(manager), index_, info_.state)); | 323 midiOutClose(out_handle_); |
324 out_handle_ = kInvalidOutHandle; | |
325 } | |
326 return Port::Disconnect(); | |
242 } | 327 } |
243 | 328 |
244 void NotifyPortAdded(DynamicallyInitializedMidiManagerWin* manager) { | 329 void Open() override { |
245 manager->PostReplyTask( | 330 MMRESULT result = |
246 base::Bind(&DynamicallyInitializedMidiManagerWin::AddOutputPort, | 331 midiOutOpen(&out_handle_, device_id_, |
247 base::Unretained(manager), info_)); | 332 reinterpret_cast<DWORD_PTR>(&HandleMidiOutCallback), 0, |
333 CALLBACK_FUNCTION); | |
334 if (result == MMSYSERR_NOERROR) { | |
335 Port::Open(); | |
336 } else { | |
337 out_handle_ = kInvalidOutHandle; | |
338 Disconnect(); | |
339 } | |
248 } | 340 } |
249 | 341 |
250 const bool software_; | 342 const bool software_; |
343 HMIDIOUT out_handle_; | |
251 }; | 344 }; |
252 | 345 |
253 DynamicallyInitializedMidiManagerWin::DynamicallyInitializedMidiManagerWin( | 346 DynamicallyInitializedMidiManagerWin::DynamicallyInitializedMidiManagerWin( |
254 MidiService* service) | 347 MidiService* service) |
255 : MidiManager(service), instance_id_(IssueNextInstanceId()) { | 348 : MidiManager(service), instance_id_(IssueNextInstanceId()) { |
256 base::AutoLock lock(*GetInstanceIdLock()); | 349 base::AutoLock lock(*GetInstanceIdLock()); |
257 CHECK_EQ(kInvalidInstanceId, g_active_instance_id); | 350 CHECK_EQ(kInvalidInstanceId, g_active_instance_id); |
258 | 351 |
259 // Obtains the task runner for the current thread that hosts this instnace. | 352 // Obtains the task runner for the current thread that hosts this instnace. |
260 thread_runner_ = base::ThreadTaskRunnerHandle::Get(); | 353 thread_runner_ = base::ThreadTaskRunnerHandle::Get(); |
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298 CHECK_EQ(instance_id_, g_active_instance_id); | 391 CHECK_EQ(instance_id_, g_active_instance_id); |
299 g_active_instance_id = kInvalidInstanceId; | 392 g_active_instance_id = kInvalidInstanceId; |
300 CHECK_EQ(this, g_manager_instance); | 393 CHECK_EQ(this, g_manager_instance); |
301 g_manager_instance = nullptr; | 394 g_manager_instance = nullptr; |
302 } | 395 } |
303 | 396 |
304 // Ensures that no task runs on TaskRunner so to destruct the instance safely. | 397 // Ensures that no task runs on TaskRunner so to destruct the instance safely. |
305 // Tasks that did not started yet will do nothing after invalidate the | 398 // Tasks that did not started yet will do nothing after invalidate the |
306 // instance ID above. | 399 // instance ID above. |
307 base::AutoLock lock(*GetTaskLock()); | 400 base::AutoLock lock(*GetTaskLock()); |
401 | |
402 // Posts tasks that finalize each device port without MidiManager instance | |
403 // on TaskRunner. If another MidiManager instance is created, its | |
404 // initialization runs on the same task runner after all tasks posted here | |
405 // finish. | |
406 for (const auto& port : input_ports_) | |
407 port->Finalize(service()->GetTaskRunner(kTaskRunner)); | |
408 for (const auto& port : output_ports_) | |
409 port->Finalize(service()->GetTaskRunner(kTaskRunner)); | |
308 } | 410 } |
309 | 411 |
310 void DynamicallyInitializedMidiManagerWin::DispatchSendMidiData( | 412 void DynamicallyInitializedMidiManagerWin::DispatchSendMidiData( |
311 MidiManagerClient* client, | 413 MidiManagerClient* client, |
312 uint32_t port_index, | 414 uint32_t port_index, |
313 const std::vector<uint8_t>& data, | 415 const std::vector<uint8_t>& data, |
314 double timestamp) { | 416 double timestamp) { |
315 // TODO(toyoshim): Following patches will implement. | 417 // TODO(toyoshim): Following patches will implement. |
316 } | 418 } |
317 | 419 |
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391 size_t index = known_ports->size(); | 493 size_t index = known_ports->size(); |
392 port->set_index(index); | 494 port->set_index(index); |
393 known_ports->push_back(std::move(port)); | 495 known_ports->push_back(std::move(port)); |
394 (*known_ports)[index]->Connect(); | 496 (*known_ports)[index]->Connect(); |
395 (*known_ports)[index]->NotifyPortAdded(this); | 497 (*known_ports)[index]->NotifyPortAdded(this); |
396 } | 498 } |
397 } | 499 } |
398 } | 500 } |
399 | 501 |
400 } // namespace midi | 502 } // namespace midi |
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