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/*
* Copyright (C) 2017-2018 Igalia S.L. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "ActiveDOMObject.h"
#include "EventTarget.h"
#include "JSDOMPromiseDeferred.h"
#include "VREye.h"
#include "VRLayerInit.h"
#include "VRPlatformDisplayClient.h"
#include <wtf/RefCounted.h>
namespace WebCore {
enum ExceptionCode;
class RequestAnimationFrameCallback;
class ScriptedAnimationController;
class VRDisplayCapabilities;
class VREyeParameters;
class VRFrameData;
class VRPlatformDisplay;
class VRPose;
class VRStageParameters;
class VRDisplay final : public RefCounted<VRDisplay>, public VRPlatformDisplayClient, public EventTargetWithInlineData, public ActiveDOMObject {
WTF_MAKE_ISO_ALLOCATED(VRDisplay);
public:
static Ref<VRDisplay> create(ScriptExecutionContext&, WeakPtr<VRPlatformDisplay>&&);
virtual ~VRDisplay();
using RefCounted<VRDisplay>::ref;
using RefCounted<VRDisplay>::deref;
bool isConnected() const;
bool isPresenting() const { return !!m_presentingLayer; };
const VRDisplayCapabilities& capabilities() const;
RefPtr<VRStageParameters> stageParameters() const;
const VREyeParameters& getEyeParameters(VREye) const;
const String& displayName() const { return m_displayName; }
uint32_t displayId() const { return m_displayId; }
bool getFrameData(VRFrameData&) const;
Ref<VRPose> getPose() const;
void resetPose();
double depthNear() const { return m_depthNear; }
void setDepthNear(double depthNear) { m_depthNear = depthNear; }
double depthFar() const { return m_depthFar; }
void setDepthFar(double depthFar) { m_depthFar = depthFar; }
uint32_t requestAnimationFrame(Ref<RequestAnimationFrameCallback>&&);
void cancelAnimationFrame(uint32_t);
void requestPresent(const Vector<VRLayerInit>&, Ref<DeferredPromise>&&);
void exitPresent(Ref<DeferredPromise>&&);
Vector<VRLayerInit> getLayers() const;
void submitFrame();
// VRPlatformDisplayClient
void platformDisplayConnected() override;
void platformDisplayDisconnected() override;
void platformDisplayMounted() override;
void platformDisplayUnmounted() override;
private:
VRDisplay(ScriptExecutionContext&, WeakPtr<VRPlatformDisplay>&&);
// EventTarget
EventTargetInterface eventTargetInterface() const override { return VRDisplayEventTargetInterfaceType; }
ScriptExecutionContext* scriptExecutionContext() const override { return ActiveDOMObject::scriptExecutionContext(); }
void refEventTarget() override { ref(); }
void derefEventTarget() override { deref(); }
// ActiveDOMObject
bool hasPendingActivity() const override;
const char* activeDOMObjectName() const override;
bool canSuspendForDocumentSuspension() const override;
void stop() override;
void stopPresenting();
Document* document() { return downcast<Document>(scriptExecutionContext()); }
WeakPtr<VRPlatformDisplay> m_display;
RefPtr<VRDisplayCapabilities> m_capabilities;
// We could likely store just one of the two following ones as the values should be identical
// (except the sign of the eye to head transform offset).
RefPtr<VREyeParameters> m_leftEyeParameters;
RefPtr<VREyeParameters> m_rightEyeParameters;
RefPtr<VRStageParameters> m_stageParameters;
String m_displayName;
uint32_t m_displayId;
double m_depthNear { 0.01 }; // Default value from the specs.
double m_depthFar { 10000 }; // Default value from the specs.
RefPtr<ScriptedAnimationController> m_scriptedAnimationController;
Optional<VRLayerInit> m_presentingLayer;
};
} // namespace WebCore