media/mojo/services/media_foundation_gpu_info_monitor.cc

   1 // Copyright 2022 The Chromium Authors
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "media/mojo/services/media_foundation_gpu_info_monitor.h"
   6
   7 namespace media {
   8
   9 // static
  10 MediaFoundationGpuInfoMonitor* MediaFoundationGpuInfoMonitor::GetInstance() {
  11   static auto* instance = new MediaFoundationGpuInfoMonitor();
  12   return instance;
  13 }
  14
  15 MediaFoundationGpuInfoMonitor::MediaFoundationGpuInfoMonitor() = default;
  16 MediaFoundationGpuInfoMonitor::~MediaFoundationGpuInfoMonitor() = default;
  17
  18 void MediaFoundationGpuInfoMonitor::UpdateGpuInfo(
  19     const gpu::GPUInfo& gpu_info) {
  20   auto new_gpu_luid = gpu_info.active_gpu().luid;
  21   if (new_gpu_luid != gpu_luid_) {
  22     gpu_luid_ = new_gpu_luid;
  23     luid_observers_.Notify(new_gpu_luid);
  24   }
  25 }
  26
  27 base::CallbackListSubscription MediaFoundationGpuInfoMonitor::AddLuidObserver(
  28     MediaFoundationGpuInfoMonitor::LuidObservers::CallbackType cb) {
  29   return luid_observers_.Add(std::move(cb));
  30 }
  31
  32 }  // namespace media