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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 "VRSession.h"
#include "moz_external_vr.h"
#include "mozilla/ipc/FileDescriptor.h"
#if defined(XP_WIN)
# include <d3d11.h>
#endif // defined(XP_WIN)
#if defined(MOZILLA_INTERNAL_API)
# if defined(XP_WIN)
# include "mozilla/gfx/Logging.h"
# endif
#else
# define NS_WARNING(s)
#endif
using namespace mozilla::gfx;
VRSession::VRSession()
: mShouldQuit(false)
#ifdef XP_WIN
,
mDevice(nullptr),
mContext(nullptr),
mDeviceContextState(nullptr)
#endif
{
}
#ifdef XP_WIN
VRSession::~VRSession() {
if (mDevice != nullptr) {
mDevice->Release();
mDevice = nullptr;
}
if (mContext != nullptr) {
mContext->Release();
mContext = nullptr;
}
if (mDeviceContextState != nullptr) {
mDeviceContextState->Release();
mDeviceContextState = nullptr;
}
}
#endif
#if defined(XP_WIN)
bool VRSession::CreateD3DContext(ID3D11Device* aDevice) {
if (!mDevice) {
if (!aDevice) {
NS_WARNING("VRSession::CreateD3DObjects failed to get a D3D11Device");
return false;
}
if (FAILED(aDevice->QueryInterface(IID_PPV_ARGS(&mDevice)))) {
NS_WARNING("VRSession::CreateD3DObjects failed to get a D3D11Device1");
return false;
}
}
if (!mContext) {
mDevice->GetImmediateContext1(&mContext);
if (!mContext) {
NS_WARNING(
"VRSession::CreateD3DObjects failed to get an immediate context");
return false;
}
}
if (!mDeviceContextState) {
D3D_FEATURE_LEVEL featureLevels[]{D3D_FEATURE_LEVEL_11_1,
D3D_FEATURE_LEVEL_11_0};
mDevice->CreateDeviceContextState(0, featureLevels, 2, D3D11_SDK_VERSION,
__uuidof(ID3D11Device1), nullptr,
&mDeviceContextState);
}
if (!mDeviceContextState) {
NS_WARNING(
"VRSession::CreateD3DObjects failed to get a D3D11DeviceContextState");
return false;
}
return true;
}
ID3D11Device1* VRSession::GetD3DDevice() { return mDevice; }
ID3D11DeviceContext1* VRSession::GetD3DDeviceContext() { return mContext; }
ID3DDeviceContextState* VRSession::GetD3DDeviceContextState() {
return mDeviceContextState;
}
#endif // defined(XP_WIN)
bool VRSession::SubmitFrame(
const mozilla::gfx::VRLayer_Stereo_Immersive& aLayer) {
#if defined(XP_WIN)
bool success = false;
if (aLayer.textureType ==
VRLayerTextureType::LayerTextureType_D3D10SurfaceDescriptor) {
ID3D11Texture2D* dxTexture = nullptr;
mozilla::ipc::FileDescriptor::UniquePlatformHandle handle(
aLayer.textureHandle);
HRESULT hr =
mDevice->OpenSharedResource1(handle.get(), IID_PPV_ARGS(&dxTexture));
if (SUCCEEDED(hr) && dxTexture != nullptr) {
// Similar to LockD3DTexture in TextureD3D11.cpp
IDXGIKeyedMutex* mutex = nullptr;
hr = dxTexture->QueryInterface(IID_PPV_ARGS(&mutex));
if (SUCCEEDED(hr)) {
hr = mutex->AcquireSync(0, 1000);
# ifdef MOZILLA_INTERNAL_API
if (hr == WAIT_TIMEOUT) {
gfxDevCrash(LogReason::D3DLockTimeout) << "D3D lock mutex timeout";
} else if (hr == WAIT_ABANDONED) {
gfxCriticalNote << "GFX: D3D11 lock mutex abandoned";
}
# endif
if (SUCCEEDED(hr)) {
success = SubmitFrame(aLayer, dxTexture);
hr = mutex->ReleaseSync(0);
if (FAILED(hr)) {
NS_WARNING("Failed to unlock the texture");
}
} else {
NS_WARNING("Failed to lock the texture");
}
mutex->Release();
mutex = nullptr;
}
dxTexture->Release();
dxTexture = nullptr;
} else {
NS_WARNING("Failed to open shared texture");
}
return SUCCEEDED(hr) && success;
}
#elif defined(XP_MACOSX)
if (aLayer.textureType == VRLayerTextureType::LayerTextureType_MacIOSurface) {
return SubmitFrame(aLayer, aLayer.textureHandle);
}
#endif
return false;
}
void VRSession::UpdateTrigger(VRControllerState& aState, uint32_t aButtonIndex,
float aValue, float aThreshold) {
// For OpenVR, the threshold value of ButtonPressed and ButtonTouched is 0.55.
// We prefer to let developers to set their own threshold for the adjustment.
// Therefore, we don't check ButtonPressed and ButtonTouched with ButtonMask
// here. we just check the button value is larger than the threshold value or
// not.
uint64_t mask = (1ULL << aButtonIndex);
aState.triggerValue[aButtonIndex] = aValue;
if (aValue > aThreshold) {
aState.buttonPressed |= mask;
aState.buttonTouched |= mask;
} else {
aState.buttonPressed &= ~mask;
aState.buttonTouched &= ~mask;
}
}
void VRSession::SetControllerSelectionAndSqueezeFrameId(
VRControllerState& controllerState, uint64_t aFrameId) {
// The 1st button, trigger, is its selection action.
const bool selectionPressed = controllerState.buttonPressed & 1ULL;
if (selectionPressed && controllerState.selectActionStopFrameId >=
controllerState.selectActionStartFrameId) {
controllerState.selectActionStartFrameId = aFrameId;
} else if (!selectionPressed && controllerState.selectActionStartFrameId >
controllerState.selectActionStopFrameId) {
controllerState.selectActionStopFrameId = aFrameId;
}
// The 2nd button, squeeze, is its squeeze action.
const bool squeezePressed = controllerState.buttonPressed & (1ULL << 1);
if (squeezePressed && controllerState.squeezeActionStopFrameId >=
controllerState.squeezeActionStartFrameId) {
controllerState.squeezeActionStartFrameId = aFrameId;
} else if (!squeezePressed && controllerState.squeezeActionStartFrameId >
controllerState.squeezeActionStopFrameId) {
controllerState.squeezeActionStopFrameId = aFrameId;
}
}
bool VRSession::ShouldQuit() const { return mShouldQuit; }
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