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-rw-r--r--gfx/vr/service/VRSession.cpp196
1 files changed, 196 insertions, 0 deletions
diff --git a/gfx/vr/service/VRSession.cpp b/gfx/vr/service/VRSession.cpp
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+++ b/gfx/vr/service/VRSession.cpp
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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"
+
+#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;
+ HRESULT hr = mDevice->OpenSharedResource((HANDLE)aLayer.textureHandle,
+ 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; }