| // Copyright 2020 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 "third_party/blink/renderer/modules/xr/xr_light_probe.h" |
| |
| #include "device/vr/public/mojom/vr_service.mojom-blink.h" |
| #include "third_party/blink/renderer/bindings/modules/v8/v8_xr_light_probe_init.h" |
| #include "third_party/blink/renderer/core/geometry/dom_point_read_only.h" |
| #include "third_party/blink/renderer/modules/event_modules.h" |
| #include "third_party/blink/renderer/modules/event_target_modules.h" |
| #include "third_party/blink/renderer/modules/xr/xr_cube_map.h" |
| #include "third_party/blink/renderer/modules/xr/xr_light_estimate.h" |
| #include "third_party/blink/renderer/modules/xr/xr_object_space.h" |
| #include "third_party/blink/renderer/modules/xr/xr_session.h" |
| |
| namespace blink { |
| |
| namespace { |
| |
| // Milliseconds to wait between reflection change events. |
| const double kReflectionChangeDelta = 1000.0; |
| |
| } // namespace |
| |
| XRLightProbe::XRLightProbe(XRSession* session, XRLightProbeInit* options) |
| : session_(session) { |
| if (options->reflectionFormat() == "rgba16f") { |
| reflection_format_ = kReflectionFormatRGBA16F; |
| } else { |
| reflection_format_ = kReflectionFormatSRGBA8; |
| } |
| } |
| |
| XRSpace* XRLightProbe::probeSpace() const { |
| if (!probe_space_) { |
| probe_space_ = |
| MakeGarbageCollected<XRObjectSpace<XRLightProbe>>(session_, this); |
| } |
| |
| return probe_space_; |
| } |
| |
| base::Optional<TransformationMatrix> XRLightProbe::MojoFromObject() const { |
| // For the moment we're making an assumption that the lighting estimations |
| // are always generated from the local space origin. This is the case for |
| // ARCore, but will need to be made more flexible as other runtimes or methods |
| // of light estimation are added. |
| return session_->GetMojoFrom(device::mojom::XRReferenceSpaceType::kLocal); |
| } |
| |
| void XRLightProbe::ProcessLightEstimationData( |
| const device::mojom::blink::XRLightEstimationData* data, |
| double timestamp) { |
| bool reflection_changed = false; |
| |
| if (data) { |
| light_estimate_ = MakeGarbageCollected<XRLightEstimate>(*data->light_probe); |
| |
| if (data->reflection_probe) { |
| if (!cube_map_) { |
| reflection_changed = true; |
| } |
| |
| const device::mojom::blink::XRReflectionProbe& reflection_probe = |
| *data->reflection_probe; |
| cube_map_ = std::make_unique<XRCubeMap>(*reflection_probe.cube_map); |
| } |
| } else { |
| if (cube_map_) { |
| reflection_changed = true; |
| } |
| |
| light_estimate_ = nullptr; |
| cube_map_ = nullptr; |
| } |
| |
| // Until we get proper notification of updated reflection data from the |
| // runtime we'll limit reflection change events to once per second. |
| if (reflection_changed || |
| (cube_map_ && |
| timestamp > last_reflection_change_ + kReflectionChangeDelta)) { |
| last_reflection_change_ = timestamp; |
| DispatchEvent(*blink::Event::Create(event_type_names::kReflectionchange)); |
| } |
| } |
| |
| ExecutionContext* XRLightProbe::GetExecutionContext() const { |
| return session_->GetExecutionContext(); |
| } |
| |
| const AtomicString& XRLightProbe::InterfaceName() const { |
| return event_target_names::kXRLightProbe; |
| } |
| |
| void XRLightProbe::Trace(Visitor* visitor) const { |
| visitor->Trace(session_); |
| visitor->Trace(probe_space_); |
| visitor->Trace(light_estimate_); |
| EventTargetWithInlineData::Trace(visitor); |
| } |
| |
| } // namespace blink |