display_service.cpp revision 356bc37719bb748346a79935e1979e264c81c296
1#include "display_service.h" 2 3#include <vector> 4 5#include <pdx/default_transport/service_endpoint.h> 6#include <pdx/rpc/remote_method.h> 7#include <private/dvr/composite_hmd.h> 8#include <private/dvr/display_rpc.h> 9#include <private/dvr/display_types.h> 10#include <private/dvr/lucid_metrics.h> 11#include <private/dvr/numeric.h> 12#include <private/dvr/polynomial_radial_distortion.h> 13#include <private/dvr/types.h> 14 15using android::pdx::Channel; 16using android::pdx::Message; 17using android::pdx::default_transport::Endpoint; 18using android::pdx::rpc::DispatchRemoteMethod; 19using android::pdx::rpc::WrapBuffer; 20 21namespace { 22 23constexpr char kPersistentPoseBufferName[] = "DvrPersistentPoseBuffer"; 24const int kPersistentPoseBufferUserId = 0; 25const int kPersistentPoseBufferGroupId = 0; 26const size_t kTimingDataSizeOffset = 128; 27 28} // anonymous namespace 29 30namespace android { 31namespace dvr { 32 33DisplayService::DisplayService() 34 : DisplayService(nullptr) {} 35 36DisplayService::DisplayService(Hwc2::Composer* hidl) 37 : BASE("DisplayService", Endpoint::Create(DisplayRPC::kClientPath)), 38 hardware_composer_(hidl) { 39 hardware_composer_.Initialize(); 40} 41 42bool DisplayService::IsInitialized() const { 43 return BASE::IsInitialized() && hardware_composer_.IsInitialized(); 44} 45 46std::string DisplayService::DumpState(size_t max_length) { 47 std::vector<char> buffer(max_length); 48 uint32_t max_len_p = static_cast<uint32_t>(max_length); 49 hardware_composer_.Dump(buffer.data(), &max_len_p); 50 return std::string(buffer.data()); 51} 52 53void DisplayService::OnChannelClose(pdx::Message& /*message*/, 54 const std::shared_ptr<Channel>& channel) { 55 auto surface = std::static_pointer_cast<SurfaceChannel>(channel); 56 if (surface && surface->type() == SurfaceTypeEnum::Normal) { 57 auto display_surface = std::static_pointer_cast<DisplaySurface>(surface); 58 display_surface->ManagerSetVisible(false); 59 display_surface->ClientSetVisible(false); 60 NotifyDisplayConfigurationUpdate(); 61 } 62 // TODO(jwcai) Handle ChannelClose of VideoMeshSurface. 63} 64 65// First-level dispatch for display service messages. Directly handles messages 66// that are independent of the display surface (metrics, creation) and routes 67// surface-specific messages to the per-instance handlers. 68pdx::Status<void> DisplayService::HandleMessage(pdx::Message& message) { 69 auto channel = message.GetChannel<SurfaceChannel>(); 70 71 switch (message.GetOp()) { 72 case DisplayRPC::GetMetrics::Opcode: 73 DispatchRemoteMethod<DisplayRPC::GetMetrics>( 74 *this, &DisplayService::OnGetMetrics, message); 75 return {}; 76 77 case DisplayRPC::GetEdsCapture::Opcode: 78 DispatchRemoteMethod<DisplayRPC::GetEdsCapture>( 79 *this, &DisplayService::OnGetEdsCapture, message); 80 return {}; 81 82 case DisplayRPC::CreateSurface::Opcode: 83 DispatchRemoteMethod<DisplayRPC::CreateSurface>( 84 *this, &DisplayService::OnCreateSurface, message); 85 return {}; 86 87 case DisplayRPC::SetViewerParams::Opcode: 88 DispatchRemoteMethod<DisplayRPC::SetViewerParams>( 89 *this, &DisplayService::OnSetViewerParams, message); 90 return {}; 91 92 case DisplayRPC::GetPoseBuffer::Opcode: 93 DispatchRemoteMethod<DisplayRPC::GetPoseBuffer>( 94 *this, &DisplayService::OnGetPoseBuffer, message); 95 return {}; 96 97 case DisplayRPC::IsVrAppRunning::Opcode: 98 DispatchRemoteMethod<DisplayRPC::IsVrAppRunning>( 99 *this, &DisplayService::IsVrAppRunning, message); 100 return {}; 101 102 // Direct the surface specific messages to the surface instance. 103 case DisplayRPC::CreateBufferQueue::Opcode: 104 case DisplayRPC::SetAttributes::Opcode: 105 case DisplayRPC::GetMetadataBuffer::Opcode: 106 case DisplayRPC::CreateVideoMeshSurface::Opcode: 107 case DisplayRPC::VideoMeshSurfaceCreateProducerQueue::Opcode: 108 return HandleSurfaceMessage(message); 109 110 default: 111 return Service::HandleMessage(message); 112 } 113} 114 115SystemDisplayMetrics DisplayService::OnGetMetrics(pdx::Message& message) { 116 const Compositor* compositor = hardware_composer_.GetCompositor(); 117 if (compositor == nullptr) 118 REPLY_ERROR_RETURN(message, EINVAL, {}); 119 120 HeadMountMetrics head_mount = compositor->head_mount_metrics(); 121 CompositeHmd hmd(head_mount, hardware_composer_.GetHmdDisplayMetrics()); 122 vec2i distorted_render_size = hmd.GetRecommendedRenderTargetSize(); 123 FieldOfView left_fov = hmd.GetEyeFov(kLeftEye); 124 FieldOfView right_fov = hmd.GetEyeFov(kRightEye); 125 126 SystemDisplayMetrics metrics; 127 128 metrics.display_native_width = GetDisplayMetrics().width; 129 metrics.display_native_height = GetDisplayMetrics().height; 130 metrics.display_x_dpi = GetDisplayMetrics().dpi.x; 131 metrics.display_y_dpi = GetDisplayMetrics().dpi.y; 132 metrics.distorted_width = distorted_render_size[0]; 133 metrics.distorted_height = distorted_render_size[1]; 134 metrics.vsync_period_ns = 135 hardware_composer_.native_display_metrics().vsync_period_ns; 136 metrics.hmd_ipd_mm = 0; 137 metrics.inter_lens_distance_m = head_mount.GetInterLensDistance(); 138 metrics.left_fov_lrbt[0] = left_fov.GetLeft(); 139 metrics.left_fov_lrbt[1] = left_fov.GetRight(); 140 metrics.left_fov_lrbt[2] = left_fov.GetBottom(); 141 metrics.left_fov_lrbt[3] = left_fov.GetTop(); 142 metrics.right_fov_lrbt[0] = right_fov.GetLeft(); 143 metrics.right_fov_lrbt[1] = right_fov.GetRight(); 144 metrics.right_fov_lrbt[2] = right_fov.GetBottom(); 145 metrics.right_fov_lrbt[3] = right_fov.GetTop(); 146 147 return metrics; 148} 149 150// Creates a new DisplaySurface and associates it with this channel. This may 151// only be done once per channel. 152int DisplayService::OnCreateSurface(pdx::Message& message, int width, 153 int height, int format, int usage, 154 DisplaySurfaceFlags flags) { 155 // A surface may only be created once per channel. 156 if (message.GetChannel()) 157 return -EINVAL; 158 159 ALOGI_IF(TRACE, "DisplayService::OnCreateSurface: cid=%d", 160 message.GetChannelId()); 161 162 // Use the channel id as the unique surface id. 163 const int surface_id = message.GetChannelId(); 164 const int process_id = message.GetProcessId(); 165 166 ALOGI_IF(TRACE, 167 "DisplayService::OnCreateSurface: surface_id=%d process_id=%d " 168 "width=%d height=%d format=%x usage=%x flags=%x", 169 surface_id, process_id, width, height, format, usage, flags); 170 171 // TODO(eieio,jbates): Validate request parameters. 172 auto channel = std::make_shared<DisplaySurface>( 173 this, surface_id, process_id, width, height, format, usage, flags); 174 175 message.SetChannel(channel); 176 NotifyDisplayConfigurationUpdate(); 177 return 0; 178} 179 180DisplayRPC::ByteBuffer DisplayService::OnGetEdsCapture(pdx::Message& message) { 181 Compositor* compositor = hardware_composer_.GetCompositor(); 182 if (compositor == nullptr) 183 REPLY_ERROR_RETURN(message, EINVAL, {}); 184 185 std::vector<std::uint8_t> buffer(sizeof(LateLatchOutput)); 186 187 if (!compositor->GetLastEdsPose( 188 reinterpret_cast<LateLatchOutput*>(buffer.data()))) { 189 REPLY_ERROR_RETURN(message, EPERM, {}); 190 } 191 192 return WrapBuffer(std::move(buffer)); 193} 194 195void DisplayService::OnSetViewerParams(pdx::Message& message, 196 const ViewerParams& view_params) { 197 Compositor* compositor = hardware_composer_.GetCompositor(); 198 if (compositor == nullptr) 199 REPLY_ERROR_RETURN(message, EINVAL); 200 201 FieldOfView left(55.0f, 55.0f, 55.0f, 55.0f); 202 FieldOfView right(55.0f, 55.0f, 55.0f, 55.0f); 203 if (view_params.left_eye_field_of_view_angles.size() >= 4) { 204 left = FieldOfView(ToRad(view_params.left_eye_field_of_view_angles[0]), 205 ToRad(view_params.left_eye_field_of_view_angles[1]), 206 ToRad(view_params.left_eye_field_of_view_angles[2]), 207 ToRad(view_params.left_eye_field_of_view_angles[3])); 208 right = FieldOfView(ToRad(view_params.left_eye_field_of_view_angles[1]), 209 ToRad(view_params.left_eye_field_of_view_angles[0]), 210 ToRad(view_params.left_eye_field_of_view_angles[2]), 211 ToRad(view_params.left_eye_field_of_view_angles[3])); 212 } 213 214 std::shared_ptr<ColorChannelDistortion> red_distortion; 215 std::shared_ptr<ColorChannelDistortion> green_distortion; 216 std::shared_ptr<ColorChannelDistortion> blue_distortion; 217 218 // We should always have a red distortion. 219 LOG_FATAL_IF(view_params.distortion_coefficients_r.empty()); 220 red_distortion = std::make_shared<PolynomialRadialDistortion>( 221 view_params.distortion_coefficients_r); 222 223 if (!view_params.distortion_coefficients_g.empty()) { 224 green_distortion = std::make_shared<PolynomialRadialDistortion>( 225 view_params.distortion_coefficients_g); 226 } 227 228 if (!view_params.distortion_coefficients_b.empty()) { 229 blue_distortion = std::make_shared<PolynomialRadialDistortion>( 230 view_params.distortion_coefficients_b); 231 } 232 233 HeadMountMetrics::EyeOrientation left_orientation = 234 HeadMountMetrics::EyeOrientation::kCCW0Degrees; 235 HeadMountMetrics::EyeOrientation right_orientation = 236 HeadMountMetrics::EyeOrientation::kCCW0Degrees; 237 238 if (view_params.eye_orientations.size() > 1) { 239 left_orientation = static_cast<HeadMountMetrics::EyeOrientation>( 240 view_params.eye_orientations[0]); 241 right_orientation = static_cast<HeadMountMetrics::EyeOrientation>( 242 view_params.eye_orientations[1]); 243 } 244 245 HeadMountMetrics head_mount_metrics( 246 view_params.inter_lens_distance, view_params.tray_to_lens_distance, 247 view_params.screen_to_lens_distance, 248 static_cast<HeadMountMetrics::VerticalAlignment>( 249 view_params.vertical_alignment), 250 left, right, red_distortion, green_distortion, blue_distortion, 251 left_orientation, right_orientation, 252 view_params.screen_center_to_lens_distance); 253 254 compositor->UpdateHeadMountMetrics(head_mount_metrics); 255} 256 257pdx::LocalChannelHandle DisplayService::OnGetPoseBuffer(pdx::Message& message) { 258 if (pose_buffer_) { 259 return pose_buffer_->CreateConsumer().take(); 260 } 261 262 pdx::rpc::RemoteMethodError(message, EAGAIN); 263 return {}; 264} 265 266// Calls the message handler for the DisplaySurface associated with this 267// channel. 268pdx::Status<void> DisplayService::HandleSurfaceMessage(pdx::Message& message) { 269 auto surface = std::static_pointer_cast<SurfaceChannel>(message.GetChannel()); 270 ALOGW_IF(!surface, 271 "DisplayService::HandleSurfaceMessage: surface is nullptr!"); 272 273 if (surface) 274 return surface->HandleMessage(message); 275 else 276 REPLY_ERROR_RETURN(message, EINVAL, {}); 277} 278 279std::shared_ptr<DisplaySurface> DisplayService::GetDisplaySurface( 280 int surface_id) const { 281 return std::static_pointer_cast<DisplaySurface>(GetChannel(surface_id)); 282} 283 284std::vector<std::shared_ptr<DisplaySurface>> 285DisplayService::GetDisplaySurfaces() const { 286 return GetChannels<DisplaySurface>(); 287} 288 289std::vector<std::shared_ptr<DisplaySurface>> 290DisplayService::GetVisibleDisplaySurfaces() const { 291 std::vector<std::shared_ptr<DisplaySurface>> visible_surfaces; 292 293 ForEachDisplaySurface( 294 [&](const std::shared_ptr<DisplaySurface>& surface) mutable { 295 if (surface->IsVisible()) 296 visible_surfaces.push_back(surface); 297 }); 298 299 return visible_surfaces; 300} 301 302void DisplayService::UpdateActiveDisplaySurfaces() { 303 auto visible_surfaces = GetVisibleDisplaySurfaces(); 304 305 // Sort the surfaces based on manager z order first, then client z order. 306 std::sort(visible_surfaces.begin(), visible_surfaces.end(), 307 [](const std::shared_ptr<DisplaySurface>& a, 308 const std::shared_ptr<DisplaySurface>& b) { 309 return a->manager_z_order() != b->manager_z_order() 310 ? a->manager_z_order() < b->manager_z_order() 311 : a->client_z_order() < b->client_z_order(); 312 }); 313 314 ALOGD_IF(TRACE, 315 "DisplayService::UpdateActiveDisplaySurfaces: %zd visible surfaces", 316 visible_surfaces.size()); 317 318 // TODO(jbates) Have the shell manage blurred layers. 319 bool blur_requested = false; 320 auto end = visible_surfaces.crend(); 321 for (auto it = visible_surfaces.crbegin(); it != end; ++it) { 322 auto surface = *it; 323 // Surfaces with exclude_from_blur==true are not blurred 324 // and are excluded from blur computation of other layers. 325 if (surface->client_exclude_from_blur()) { 326 surface->ManagerSetBlur(0.0f); 327 continue; 328 } 329 surface->ManagerSetBlur(blur_requested ? 1.0f : 0.0f); 330 if (surface->client_blur_behind()) 331 blur_requested = true; 332 } 333 334 hardware_composer_.SetDisplaySurfaces(std::move(visible_surfaces)); 335} 336 337pdx::BorrowedChannelHandle DisplayService::SetupPoseBuffer( 338 size_t extended_region_size, int usage) { 339 if (!pose_buffer_) { 340 pose_buffer_ = BufferProducer::Create( 341 kPersistentPoseBufferName, kPersistentPoseBufferUserId, 342 kPersistentPoseBufferGroupId, usage, 343 extended_region_size + kTimingDataSizeOffset); 344 } 345 346 return pose_buffer_->GetChannelHandle().Borrow(); 347} 348 349void DisplayService::OnHardwareComposerRefresh() { 350 hardware_composer_.OnHardwareComposerRefresh(); 351} 352 353void DisplayService::SetDisplayConfigurationUpdateNotifier( 354 DisplayConfigurationUpdateNotifier update_notifier) { 355 update_notifier_ = update_notifier; 356} 357 358void DisplayService::NotifyDisplayConfigurationUpdate() { 359 if (update_notifier_) 360 update_notifier_(); 361} 362 363int DisplayService::IsVrAppRunning(pdx::Message& message) { 364 bool visible = false; 365 ForEachDisplaySurface([&visible](const std::shared_ptr<DisplaySurface>& surface) { 366 if (surface->client_z_order() == 0 && surface->IsVisible()) 367 visible = true; 368 }); 369 370 REPLY_SUCCESS_RETURN(message, visible, 0); 371} 372 373} // namespace dvr 374} // namespace android 375