Merge M44: Web MIDI: disable unsupported devices on Windows

media/midi/midi_manager_win.cc

 // Copyright 2013 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_win.h"
 
 #include <windows.h>
 #include <ks.h>
 #include <ksmedia.h>
 #include <mmreg.h>
@@ skipping 279 matching lines @@
 
   switch (info.manufacturer_id) {
     case MM_MICROSOFT:
       return "Microsoft Corporation";
     default:
       // TODO(toyoshim): Support other manufacture IDs.  crbug.com/472341.
       return "";
   }
 }
 
+bool IsUnsupportedDevice(const MidiDeviceInfo& info) {
+  return info.manufacturer_id == MM_MICROSOFT &&
+         (info.product_id == MM_MSFT_WDMAUDIO_MIDIOUT ||
+          info.product_id == MM_MSFT_GENERIC_MIDISYNTH);
+}
+
 using PortNumberCache = base::hash_map<
     MidiDeviceInfo,
     std::priority_queue<uint32, std::vector<uint32>, std::greater<uint32>>,
     MidiDeviceInfo::Hasher>;
 
 struct MidiInputDeviceState final : base::RefCounted<MidiInputDeviceState> {
   explicit MidiInputDeviceState(const MidiDeviceInfo& device_info)
       : device_info(device_info),
         midi_handle(kInvalidMidiInHandle),
         port_index(0),
@@ skipping 482 matching lines @@
     result = midiOutGetDevCaps(
         device_id, reinterpret_cast<LPMIDIOUTCAPSW>(&caps), sizeof(caps));
     if (result != MMSYSERR_NOERROR) {
       DLOG(ERROR) << "midiInGetDevCaps failed: " << GetOutErrorMessage(result);
       return;
     }
     auto state =
         make_scoped_refptr(new MidiOutputDeviceState(MidiDeviceInfo(caps)));
     state->midi_handle = midi_out_handle;
     const auto& state_device_info = state->device_info;
+    if (IsUnsupportedDevice(state_device_info))
+      return;
     bool add_new_port = false;
     uint32 port_number = 0;
     {
       base::AutoLock auto_lock(output_ports_lock_);
       const auto it = unused_output_ports_.find(state_device_info);
       if (it == unused_output_ports_.end()) {
         port_number = static_cast<uint32>(output_ports_.size());
         add_new_port = true;
         output_ports_.push_back(nullptr);
         output_ports_ages_.push_back(0);
@@ skipping 346 matching lines @@
                                        base::TimeTicks time) {
   ReceiveMidiData(port_index, &data[0], data.size(), time);
 }
 
 MidiManager* MidiManager::Create() {
   return new MidiManagerWin();
 }
 
 }  // namespace midi
 }  // namespace media