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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "VRLayerChild.h"
#include "GLScreenBuffer.h"
#include "mozilla/layers/TextureClientSharedSurface.h"
#include "SharedSurface.h" // for SharedSurface
#include "SharedSurfaceGL.h" // for SharedSurface
#include "mozilla/layers/LayersMessages.h" // for TimedTexture
#include "nsICanvasRenderingContextInternal.h"
#include "mozilla/dom/HTMLCanvasElement.h"
namespace mozilla {
namespace gfx {
VRLayerChild::VRLayerChild(uint32_t aVRDisplayID, VRManagerChild* aVRManagerChild)
: mVRDisplayID(aVRDisplayID)
, mCanvasElement(nullptr)
, mShSurfClient(nullptr)
, mFront(nullptr)
{
MOZ_COUNT_CTOR(VRLayerChild);
}
VRLayerChild::~VRLayerChild()
{
if (mCanvasElement) {
mCanvasElement->StopVRPresentation();
}
ClearSurfaces();
MOZ_COUNT_DTOR(VRLayerChild);
}
void
VRLayerChild::Initialize(dom::HTMLCanvasElement* aCanvasElement)
{
MOZ_ASSERT(aCanvasElement);
mCanvasElement = aCanvasElement;
mCanvasElement->StartVRPresentation();
VRManagerChild *vrmc = VRManagerChild::Get();
vrmc->RunFrameRequestCallbacks();
}
void
VRLayerChild::SubmitFrame()
{
if (!mCanvasElement) {
return;
}
mShSurfClient = mCanvasElement->GetVRFrame();
if (!mShSurfClient) {
return;
}
gl::SharedSurface* surf = mShSurfClient->Surf();
if (surf->mType == gl::SharedSurfaceType::Basic) {
gfxCriticalError() << "SharedSurfaceType::Basic not supported for WebVR";
return;
}
mFront = mShSurfClient;
mShSurfClient = nullptr;
mFront->SetAddedToCompositableClient();
VRManagerChild* vrmc = VRManagerChild::Get();
mFront->SyncWithObject(vrmc->GetSyncObject());
MOZ_ALWAYS_TRUE(mFront->InitIPDLActor(vrmc));
SendSubmitFrame(mFront->GetIPDLActor());
}
void
VRLayerChild::ClearSurfaces()
{
mFront = nullptr;
mShSurfClient = nullptr;
}
} // namespace gfx
} // namespace mozilla
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