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// Copyright 2015 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 "ui/ozone/platform/drm/gpu/drm_device_manager.h"
#include "ui/ozone/platform/drm/gpu/drm_device.h"
namespace ui {
DrmDeviceManager::DrmDeviceManager(
const scoped_refptr<DrmDevice>& primary_device)
: primary_device_(primary_device) {
}
DrmDeviceManager::~DrmDeviceManager() {
DCHECK(drm_device_map_.empty());
}
void DrmDeviceManager::UpdateDrmDevice(gfx::AcceleratedWidget widget,
const scoped_refptr<DrmDevice>& device) {
base::AutoLock lock(lock_);
drm_device_map_[widget] = device;
}
void DrmDeviceManager::RemoveDrmDevice(gfx::AcceleratedWidget widget) {
base::AutoLock lock(lock_);
auto it = drm_device_map_.find(widget);
if (it != drm_device_map_.end())
drm_device_map_.erase(it);
}
scoped_refptr<DrmDevice> DrmDeviceManager::GetDrmDevice(
gfx::AcceleratedWidget widget) {
base::AutoLock lock(lock_);
if (widget == gfx::kNullAcceleratedWidget)
return primary_device_;
auto it = drm_device_map_.find(widget);
DCHECK(it != drm_device_map_.end())
<< "Attempting to get device for unknown widget " << widget;
// If the widget isn't associated with a display (headless mode) we can
// allocate buffers from any controller since they will never be scanned out.
// Use the primary DRM device as a fallback when allocating these buffers.
if (!it->second)
return primary_device_;
return it->second;
}
} // namespace ui
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