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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_XR_XR_FRAME_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_XR_XR_FRAME_H_
#include <memory>
#include "third_party/blink/renderer/bindings/core/v8/script_promise.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_dom_matrix.h"
#include "third_party/blink/renderer/core/typed_arrays/array_buffer_view_helpers.h"
#include "third_party/blink/renderer/core/typed_arrays/dom_typed_array.h"
#include "third_party/blink/renderer/modules/xr/xr_joint_pose.h"
#include "third_party/blink/renderer/platform/bindings/script_wrappable.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
#include "third_party/blink/renderer/platform/wtf/forward.h"
#include "ui/gfx/geometry/transform.h"
namespace blink {
class ExceptionState;
class ScriptState;
class XRAnchor;
class XRAnchorSet;
class XRCPUDepthInformation;
class XRHitTestResult;
class XRHitTestSource;
class XRImageTrackingResult;
class XRInputSource;
class XRJointPose;
class XRLightEstimate;
class XRLightProbe;
class XRJointSpace;
class XRPlaneSet;
class XRPose;
class XRReferenceSpace;
class XRRigidTransform;
class XRSession;
class XRSpace;
class XRTransientInputHitTestResult;
class XRTransientInputHitTestSource;
class XRView;
class XRViewerPose;
template <typename IDLType>
class FrozenArray;
class XRFrame final : public ScriptWrappable {
DEFINE_WRAPPERTYPEINFO();
public:
static constexpr char kInactiveFrame[] =
"XRFrame access outside the callback that produced it is invalid.";
static constexpr char kNonAnimationFrame[] =
"This method can only be called on XRFrame objects passed to "
"XRSession.requestAnimationFrame callbacks.";
explicit XRFrame(XRSession* session, bool is_animation_frame = false);
XRSession* session() const { return session_.Get(); }
// Returns basespace_from_viewer.
XRViewerPose* getViewerPose(XRReferenceSpace* basespace,
ExceptionState& exception_state);
// Return an XRPose that has a transform of basespace_from_space, while
// accounting for the base pose matrix of this frame. If computing a transform
// isn't possible, return nullptr.
XRPose* getPose(XRSpace* space,
XRSpace* basespace,
ExceptionState& exception_state);
XRAnchorSet* trackedAnchors() const;
XRLightEstimate* getLightEstimate(XRLightProbe* light_probe,
ExceptionState& exception_state) const;
XRCPUDepthInformation* getDepthInformation(
XRView* view,
ExceptionState& exception_state) const;
XRPlaneSet* detectedPlanes(ExceptionState& exception_state) const;
void Trace(Visitor*) const override;
void Deactivate();
bool IsActive() const;
bool IsAnimationFrame() const { return is_animation_frame_; }
const FrozenArray<XRHitTestResult>& getHitTestResults(
XRHitTestSource* hit_test_source,
ExceptionState& exception_state);
const FrozenArray<XRTransientInputHitTestResult>&
getHitTestResultsForTransientInput(
XRTransientInputHitTestSource* hit_test_source,
ExceptionState& exception_state);
ScriptPromise<XRAnchor> createAnchor(ScriptState* script_state,
XRRigidTransform* initial_pose,
XRSpace* space,
ExceptionState& exception_state);
const FrozenArray<XRImageTrackingResult>& getImageTrackingResults(
ExceptionState&);
XRJointPose* getJointPose(XRJointSpace* joint,
XRSpace* baseSpace,
ExceptionState& exception_state) const;
bool fillJointRadii(const HeapVector<Member<XRJointSpace>>& jointSpaces,
NotShared<DOMFloat32Array> radii,
ExceptionState& exception_state) const;
bool fillPoses(const HeapVector<Member<XRSpace>>& spaces,
XRSpace* baseSpace,
NotShared<DOMFloat32Array> transforms,
ExceptionState& exception_state) const;
private:
std::unique_ptr<gfx::Transform> GetAdjustedPoseMatrix(XRSpace*) const;
XRPose* GetTargetRayPose(XRInputSource*, XRSpace*) const;
XRPose* GetGripPose(XRInputSource*, XRSpace*) const;
// Helper that creates an anchor with the assumption that the conversion from
// passed in space to a stationary space is required.
// |native_origin_from_anchor| is a transform from |space|'s native origin to
// the desired anchor position (i.e. the origin-offset of the |space| is
// already taken into account).
ScriptPromise<XRAnchor> CreateAnchorFromNonStationarySpace(
ScriptState* script_state,
const gfx::Transform& native_origin_from_anchor,
XRSpace* space,
std::optional<uint64_t> maybe_plane_id,
ExceptionState& exception_state);
// Helper for checking if space and frame have the same session.
// Sets kInvalidStateError exception state if sessions are different.
bool IsSameSession(XRSession* space_session,
ExceptionState& exception_state) const;
const Member<XRSession> session_;
// Frames are only active during callbacks. getPose and getViewerPose should
// only be called from JS on active frames.
bool is_active_ = true;
// Only frames created by XRSession.requestAnimationFrame callbacks are
// animation frames. getViewerPose should only be called from JS on active
// animation frames.
bool is_animation_frame_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_XR_XR_FRAME_H_
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