Ozone integration.

ui/ozone/platform/drm/host/drm_display_host.cc

+// 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/host/drm_display_host.h"
+
+#include "base/bind.h"
+#include "base/location.h"
+#include "base/thread_task_runner_handle.h"
+#include "ui/ozone/common/display_snapshot_proxy.h"
+#include "ui/ozone/common/display_util.h"
+#include "ui/ozone/common/gpu/ozone_gpu_message_params.h"
+#include "ui/ozone/platform/drm/host/drm_gpu_platform_support_host.h"
+
+namespace ui {
+
+DrmDisplayHost::DrmDisplayHost(DrmGpuPlatformSupportHost* sender,
+                               const DisplaySnapshot_Params& params,
+                               bool is_dummy)
+    : sender_(sender),
+      snapshot_(new DisplaySnapshotProxy(params)),
+      is_dummy_(is_dummy) {
+  sender_->AddChannelObserver(this);
+}
+
+DrmDisplayHost::~DrmDisplayHost() {
+  sender_->RemoveChannelObserver(this);
+  ClearCallbacks();
+}
+
+void DrmDisplayHost::UpdateDisplaySnapshot(
+    const DisplaySnapshot_Params& params) {
+  snapshot_ = make_scoped_ptr(new DisplaySnapshotProxy(params));
+}
+
+void DrmDisplayHost::Configure(const DisplayMode* mode,
+                               const gfx::Point& origin,
+                               const ConfigureCallback& callback) {
+  if (is_dummy_) {
+    callback.Run(true);
+    return;
+  }
+
+  configure_callback_ = callback;
+  bool status = false;
+  if (mode) {
+    status = sender_->ConfigureNativeDisplay(
+        snapshot_->display_id(), GetDisplayModeParams(*mode), origin);
+  } else {
+    status = sender_->DisableNativeDisplay(snapshot_->display_id());
+  }
+
+  if (!status)
+    OnDisplayConfigured(false);
+}
+
+void DrmDisplayHost::OnDisplayConfigured(bool status) {
+  if (!configure_callback_.is_null()) {
+    base::ThreadTaskRunnerHandle::Get()->PostTask(
+        FROM_HERE, base::Bind(configure_callback_, status));
+  } else {
+    LOG(ERROR) << "Got unexpected event for display "
+               << snapshot_->display_id();
+  }
+
+  configure_callback_.Reset();
+}
+
+void DrmDisplayHost::GetHDCPState(const GetHDCPStateCallback& callback) {
+  get_hdcp_callback_ = callback;
+  if (!sender_->GetHDCPState(snapshot_->display_id()))
+    OnHDCPStateReceived(false, HDCP_STATE_UNDESIRED);
+}
+
+void DrmDisplayHost::OnHDCPStateReceived(bool status, HDCPState state) {
+  if (!get_hdcp_callback_.is_null()) {
+    base::ThreadTaskRunnerHandle::Get()->PostTask(
+        FROM_HERE, base::Bind(get_hdcp_callback_, status, state));
+  } else {
+    LOG(ERROR) << "Got unexpected event for display "
+               << snapshot_->display_id();
+  }
+
+  get_hdcp_callback_.Reset();
+}
+
+void DrmDisplayHost::SetHDCPState(HDCPState state,
+                                  const SetHDCPStateCallback& callback) {
+  set_hdcp_callback_ = callback;
+  if (!sender_->SetHDCPState(snapshot_->display_id(), state))
+    OnHDCPStateUpdated(false);
+}
+
+void DrmDisplayHost::OnHDCPStateUpdated(bool status) {
+  if (!set_hdcp_callback_.is_null()) {
+    base::ThreadTaskRunnerHandle::Get()->PostTask(
+        FROM_HERE, base::Bind(set_hdcp_callback_, status));
+  } else {
+    LOG(ERROR) << "Got unexpected event for display "
+               << snapshot_->display_id();
+  }
+
+  set_hdcp_callback_.Reset();
+}
+
+void DrmDisplayHost::SetGammaRamp(const std::vector<GammaRampRGBEntry>& lut) {
+  sender_->SetGammaRamp(snapshot_->display_id(), lut);
+}
+
+void DrmDisplayHost::OnChannelEstablished() {
+  is_dummy_ = false;
+
+  // Note: These responses are done here since the OnChannelDestroyed() is
+  // called after OnChannelEstablished().
+  ClearCallbacks();
+}
+
+void DrmDisplayHost::OnChannelDestroyed() {
+}
+
+void DrmDisplayHost::ClearCallbacks() {
+  if (!configure_callback_.is_null())
+    OnDisplayConfigured(false);
+  if (!get_hdcp_callback_.is_null())
+    OnHDCPStateReceived(false, HDCP_STATE_UNDESIRED);
+  if (!set_hdcp_callback_.is_null())
+    OnHDCPStateUpdated(false);
+}
+
+}  // namespace ui