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path: root/gfx/vr/gfxVROculus.cpp
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Diffstat (limited to 'gfx/vr/gfxVROculus.cpp')
-rw-r--r--gfx/vr/gfxVROculus.cpp896
1 files changed, 0 insertions, 896 deletions
diff --git a/gfx/vr/gfxVROculus.cpp b/gfx/vr/gfxVROculus.cpp
deleted file mode 100644
index c00a22320..000000000
--- a/gfx/vr/gfxVROculus.cpp
+++ /dev/null
@@ -1,896 +0,0 @@
-/* -*- Mode: C++; tab-width: 20; 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/. */
-
-#ifndef XP_WIN
-#error "Oculus 1.3 runtime support only available for Windows"
-#endif
-
-#include <math.h>
-
-
-#include "prlink.h"
-#include "prmem.h"
-#include "prenv.h"
-#include "gfxPrefs.h"
-#include "nsString.h"
-#include "mozilla/DebugOnly.h"
-#include "mozilla/Preferences.h"
-#include "mozilla/TimeStamp.h"
-#include "mozilla/gfx/DeviceManagerDx.h"
-#include "ipc/VRLayerParent.h"
-
-#include "mozilla/gfx/Quaternion.h"
-
-#include <d3d11.h>
-#include "CompositorD3D11.h"
-#include "TextureD3D11.h"
-
-#include "gfxVROculus.h"
-
-/** XXX The DX11 objects and quad blitting could be encapsulated
- * into a separate object if either Oculus starts supporting
- * non-Windows platforms or the blit is needed by other HMD\
- * drivers.
- * Alternately, we could remove the extra blit for
- * Oculus as well with some more refactoring.
- */
-
-// See CompositorD3D11Shaders.h
-struct ShaderBytes { const void* mData; size_t mLength; };
-extern ShaderBytes sRGBShader;
-extern ShaderBytes sLayerQuadVS;
-#ifndef M_PI
-# define M_PI 3.14159265358979323846
-#endif
-
-using namespace mozilla;
-using namespace mozilla::gfx;
-using namespace mozilla::gfx::impl;
-using namespace mozilla::layers;
-
-namespace {
-
-#ifdef OVR_CAPI_LIMITED_MOZILLA
-static pfn_ovr_Initialize ovr_Initialize = nullptr;
-static pfn_ovr_Shutdown ovr_Shutdown = nullptr;
-static pfn_ovr_GetLastErrorInfo ovr_GetLastErrorInfo = nullptr;
-static pfn_ovr_GetVersionString ovr_GetVersionString = nullptr;
-static pfn_ovr_TraceMessage ovr_TraceMessage = nullptr;
-static pfn_ovr_GetHmdDesc ovr_GetHmdDesc = nullptr;
-static pfn_ovr_GetTrackerCount ovr_GetTrackerCount = nullptr;
-static pfn_ovr_GetTrackerDesc ovr_GetTrackerDesc = nullptr;
-static pfn_ovr_Create ovr_Create = nullptr;
-static pfn_ovr_Destroy ovr_Destroy = nullptr;
-static pfn_ovr_GetSessionStatus ovr_GetSessionStatus = nullptr;
-static pfn_ovr_SetTrackingOriginType ovr_SetTrackingOriginType = nullptr;
-static pfn_ovr_GetTrackingOriginType ovr_GetTrackingOriginType = nullptr;
-static pfn_ovr_RecenterTrackingOrigin ovr_RecenterTrackingOrigin = nullptr;
-static pfn_ovr_ClearShouldRecenterFlag ovr_ClearShouldRecenterFlag = nullptr;
-static pfn_ovr_GetTrackingState ovr_GetTrackingState = nullptr;
-static pfn_ovr_GetTrackerPose ovr_GetTrackerPose = nullptr;
-static pfn_ovr_GetInputState ovr_GetInputState = nullptr;
-static pfn_ovr_GetConnectedControllerTypes ovr_GetConnectedControllerTypes = nullptr;
-static pfn_ovr_SetControllerVibration ovr_SetControllerVibration = nullptr;
-static pfn_ovr_GetTextureSwapChainLength ovr_GetTextureSwapChainLength = nullptr;
-static pfn_ovr_GetTextureSwapChainCurrentIndex ovr_GetTextureSwapChainCurrentIndex = nullptr;
-static pfn_ovr_GetTextureSwapChainDesc ovr_GetTextureSwapChainDesc = nullptr;
-static pfn_ovr_CommitTextureSwapChain ovr_CommitTextureSwapChain = nullptr;
-static pfn_ovr_DestroyTextureSwapChain ovr_DestroyTextureSwapChain = nullptr;
-static pfn_ovr_DestroyMirrorTexture ovr_DestroyMirrorTexture = nullptr;
-static pfn_ovr_GetFovTextureSize ovr_GetFovTextureSize = nullptr;
-static pfn_ovr_GetRenderDesc ovr_GetRenderDesc = nullptr;
-static pfn_ovr_SubmitFrame ovr_SubmitFrame = nullptr;
-static pfn_ovr_GetPredictedDisplayTime ovr_GetPredictedDisplayTime = nullptr;
-static pfn_ovr_GetTimeInSeconds ovr_GetTimeInSeconds = nullptr;
-static pfn_ovr_GetBool ovr_GetBool = nullptr;
-static pfn_ovr_SetBool ovr_SetBool = nullptr;
-static pfn_ovr_GetInt ovr_GetInt = nullptr;
-static pfn_ovr_SetInt ovr_SetInt = nullptr;
-static pfn_ovr_GetFloat ovr_GetFloat = nullptr;
-static pfn_ovr_SetFloat ovr_SetFloat = nullptr;
-static pfn_ovr_GetFloatArray ovr_GetFloatArray = nullptr;
-static pfn_ovr_SetFloatArray ovr_SetFloatArray = nullptr;
-static pfn_ovr_GetString ovr_GetString = nullptr;
-static pfn_ovr_SetString ovr_SetString = nullptr;
-
-#ifdef XP_WIN
-static pfn_ovr_CreateTextureSwapChainDX ovr_CreateTextureSwapChainDX = nullptr;
-static pfn_ovr_GetTextureSwapChainBufferDX ovr_GetTextureSwapChainBufferDX = nullptr;
-static pfn_ovr_CreateMirrorTextureDX ovr_CreateMirrorTextureDX = nullptr;
-static pfn_ovr_GetMirrorTextureBufferDX ovr_GetMirrorTextureBufferDX = nullptr;
-#endif
-
-static pfn_ovr_CreateTextureSwapChainGL ovr_CreateTextureSwapChainGL = nullptr;
-static pfn_ovr_GetTextureSwapChainBufferGL ovr_GetTextureSwapChainBufferGL = nullptr;
-static pfn_ovr_CreateMirrorTextureGL ovr_CreateMirrorTextureGL = nullptr;
-static pfn_ovr_GetMirrorTextureBufferGL ovr_GetMirrorTextureBufferGL = nullptr;
-
-#ifdef HAVE_64BIT_BUILD
-#define BUILD_BITS 64
-#else
-#define BUILD_BITS 32
-#endif
-
-#define OVR_PRODUCT_VERSION 1
-#define OVR_MAJOR_VERSION 3
-#define OVR_MINOR_VERSION 1
-
-static bool
-InitializeOculusCAPI()
-{
- static PRLibrary *ovrlib = nullptr;
-
- if (!ovrlib) {
- nsTArray<nsCString> libSearchPaths;
- nsCString libName;
- nsCString searchPath;
-
-#if defined(_WIN32)
- static const char dirSep = '\\';
-#else
- static const char dirSep = '/';
-#endif
-
-#if defined(_WIN32)
- static const int pathLen = 260;
- searchPath.SetCapacity(pathLen);
- int realLen = ::GetSystemDirectoryA(searchPath.BeginWriting(), pathLen);
- if (realLen != 0 && realLen < pathLen) {
- searchPath.SetLength(realLen);
- libSearchPaths.AppendElement(searchPath);
- }
- libName.AppendPrintf("LibOVRRT%d_%d.dll", BUILD_BITS, OVR_PRODUCT_VERSION);
-#elif defined(__APPLE__)
- searchPath.Truncate();
- searchPath.AppendPrintf("/Library/Frameworks/LibOVRRT_%d.framework/Versions/%d", OVR_PRODUCT_VERSION, OVR_MAJOR_VERSION);
- libSearchPaths.AppendElement(searchPath);
-
- if (PR_GetEnv("HOME")) {
- searchPath.Truncate();
- searchPath.AppendPrintf("%s/Library/Frameworks/LibOVRRT_%d.framework/Versions/%d", PR_GetEnv("HOME"), OVR_PRODUCT_VERSION, OVR_MAJOR_VERSION);
- libSearchPaths.AppendElement(searchPath);
- }
- // The following will match the va_list overload of AppendPrintf if the product version is 0
- // That's bad times.
- //libName.AppendPrintf("LibOVRRT_%d", OVR_PRODUCT_VERSION);
- libName.Append("LibOVRRT_");
- libName.AppendInt(OVR_PRODUCT_VERSION);
-#else
- libSearchPaths.AppendElement(nsCString("/usr/local/lib"));
- libSearchPaths.AppendElement(nsCString("/usr/lib"));
- libName.AppendPrintf("libOVRRT%d_%d.so.%d", BUILD_BITS, OVR_PRODUCT_VERSION, OVR_MAJOR_VERSION);
-#endif
-
- // If the pref is present, we override libName
- nsAdoptingCString prefLibPath = mozilla::Preferences::GetCString("dom.vr.ovr_lib_path");
- if (prefLibPath && prefLibPath.get()) {
- libSearchPaths.InsertElementsAt(0, 1, prefLibPath);
- }
-
- nsAdoptingCString prefLibName = mozilla::Preferences::GetCString("dom.vr.ovr_lib_name");
- if (prefLibName && prefLibName.get()) {
- libName.Assign(prefLibName);
- }
-
- // search the path/module dir
- libSearchPaths.InsertElementsAt(0, 1, nsCString());
-
- // If the env var is present, we override libName
- if (PR_GetEnv("OVR_LIB_PATH")) {
- searchPath = PR_GetEnv("OVR_LIB_PATH");
- libSearchPaths.InsertElementsAt(0, 1, searchPath);
- }
-
- if (PR_GetEnv("OVR_LIB_NAME")) {
- libName = PR_GetEnv("OVR_LIB_NAME");
- }
-
- for (uint32_t i = 0; i < libSearchPaths.Length(); ++i) {
- nsCString& libPath = libSearchPaths[i];
- nsCString fullName;
- if (libPath.Length() == 0) {
- fullName.Assign(libName);
- } else {
- fullName.AppendPrintf("%s%c%s", libPath.BeginReading(), dirSep, libName.BeginReading());
- }
-
- ovrlib = PR_LoadLibrary(fullName.BeginReading());
- if (ovrlib)
- break;
- }
-
- if (!ovrlib) {
- return false;
- }
- }
-
- // was it already initialized?
- if (ovr_Initialize)
- return true;
-
-#define REQUIRE_FUNCTION(_x) do { \
- *(void **)&_x = (void *) PR_FindSymbol(ovrlib, #_x); \
- if (!_x) { printf_stderr(#_x " symbol missing\n"); goto fail; } \
- } while (0)
-
- REQUIRE_FUNCTION(ovr_Initialize);
- REQUIRE_FUNCTION(ovr_Shutdown);
- REQUIRE_FUNCTION(ovr_GetLastErrorInfo);
- REQUIRE_FUNCTION(ovr_GetVersionString);
- REQUIRE_FUNCTION(ovr_TraceMessage);
- REQUIRE_FUNCTION(ovr_GetHmdDesc);
- REQUIRE_FUNCTION(ovr_GetTrackerCount);
- REQUIRE_FUNCTION(ovr_GetTrackerDesc);
- REQUIRE_FUNCTION(ovr_Create);
- REQUIRE_FUNCTION(ovr_Destroy);
- REQUIRE_FUNCTION(ovr_GetSessionStatus);
- REQUIRE_FUNCTION(ovr_SetTrackingOriginType);
- REQUIRE_FUNCTION(ovr_GetTrackingOriginType);
- REQUIRE_FUNCTION(ovr_RecenterTrackingOrigin);
- REQUIRE_FUNCTION(ovr_ClearShouldRecenterFlag);
- REQUIRE_FUNCTION(ovr_GetTrackingState);
- REQUIRE_FUNCTION(ovr_GetTrackerPose);
- REQUIRE_FUNCTION(ovr_GetInputState);
- REQUIRE_FUNCTION(ovr_GetConnectedControllerTypes);
- REQUIRE_FUNCTION(ovr_SetControllerVibration);
- REQUIRE_FUNCTION(ovr_GetTextureSwapChainLength);
- REQUIRE_FUNCTION(ovr_GetTextureSwapChainCurrentIndex);
- REQUIRE_FUNCTION(ovr_GetTextureSwapChainDesc);
- REQUIRE_FUNCTION(ovr_CommitTextureSwapChain);
- REQUIRE_FUNCTION(ovr_DestroyTextureSwapChain);
- REQUIRE_FUNCTION(ovr_DestroyMirrorTexture);
- REQUIRE_FUNCTION(ovr_GetFovTextureSize);
- REQUIRE_FUNCTION(ovr_GetRenderDesc);
- REQUIRE_FUNCTION(ovr_SubmitFrame);
- REQUIRE_FUNCTION(ovr_GetPredictedDisplayTime);
- REQUIRE_FUNCTION(ovr_GetTimeInSeconds);
- REQUIRE_FUNCTION(ovr_GetBool);
- REQUIRE_FUNCTION(ovr_SetBool);
- REQUIRE_FUNCTION(ovr_GetInt);
- REQUIRE_FUNCTION(ovr_SetInt);
- REQUIRE_FUNCTION(ovr_GetFloat);
- REQUIRE_FUNCTION(ovr_SetFloat);
- REQUIRE_FUNCTION(ovr_GetFloatArray);
- REQUIRE_FUNCTION(ovr_SetFloatArray);
- REQUIRE_FUNCTION(ovr_GetString);
- REQUIRE_FUNCTION(ovr_SetString);
-
-#ifdef XP_WIN
-
- REQUIRE_FUNCTION(ovr_CreateTextureSwapChainDX);
- REQUIRE_FUNCTION(ovr_GetTextureSwapChainBufferDX);
- REQUIRE_FUNCTION(ovr_CreateMirrorTextureDX);
- REQUIRE_FUNCTION(ovr_GetMirrorTextureBufferDX);
-
-#endif
-
- REQUIRE_FUNCTION(ovr_CreateTextureSwapChainGL);
- REQUIRE_FUNCTION(ovr_GetTextureSwapChainBufferGL);
- REQUIRE_FUNCTION(ovr_CreateMirrorTextureGL);
- REQUIRE_FUNCTION(ovr_GetMirrorTextureBufferGL);
-
-#undef REQUIRE_FUNCTION
-
- return true;
-
- fail:
- ovr_Initialize = nullptr;
- return false;
-}
-
-#else
-#include <OVR_Version.h>
-// we're statically linked; it's available
-static bool InitializeOculusCAPI()
-{
- return true;
-}
-
-#endif
-
-ovrFovPort
-ToFovPort(const VRFieldOfView& aFOV)
-{
- ovrFovPort fovPort;
- fovPort.LeftTan = tan(aFOV.leftDegrees * M_PI / 180.0);
- fovPort.RightTan = tan(aFOV.rightDegrees * M_PI / 180.0);
- fovPort.UpTan = tan(aFOV.upDegrees * M_PI / 180.0);
- fovPort.DownTan = tan(aFOV.downDegrees * M_PI / 180.0);
- return fovPort;
-}
-
-VRFieldOfView
-FromFovPort(const ovrFovPort& aFOV)
-{
- VRFieldOfView fovInfo;
- fovInfo.leftDegrees = atan(aFOV.LeftTan) * 180.0 / M_PI;
- fovInfo.rightDegrees = atan(aFOV.RightTan) * 180.0 / M_PI;
- fovInfo.upDegrees = atan(aFOV.UpTan) * 180.0 / M_PI;
- fovInfo.downDegrees = atan(aFOV.DownTan) * 180.0 / M_PI;
- return fovInfo;
-}
-
-} // namespace
-
-VRDisplayOculus::VRDisplayOculus(ovrSession aSession)
- : VRDisplayHost(VRDeviceType::Oculus)
- , mSession(aSession)
- , mTextureSet(nullptr)
- , mQuadVS(nullptr)
- , mQuadPS(nullptr)
- , mLinearSamplerState(nullptr)
- , mVSConstantBuffer(nullptr)
- , mPSConstantBuffer(nullptr)
- , mVertexBuffer(nullptr)
- , mInputLayout(nullptr)
- , mIsPresenting(false)
-{
- MOZ_COUNT_CTOR_INHERITED(VRDisplayOculus, VRDisplayHost);
-
- mDisplayInfo.mDisplayName.AssignLiteral("Oculus VR HMD");
- mDisplayInfo.mIsConnected = true;
-
- mDesc = ovr_GetHmdDesc(aSession);
-
- mDisplayInfo.mCapabilityFlags = VRDisplayCapabilityFlags::Cap_None;
- if (mDesc.AvailableTrackingCaps & ovrTrackingCap_Orientation) {
- mDisplayInfo.mCapabilityFlags |= VRDisplayCapabilityFlags::Cap_Orientation;
- mDisplayInfo.mCapabilityFlags |= VRDisplayCapabilityFlags::Cap_AngularAcceleration;
- }
- if (mDesc.AvailableTrackingCaps & ovrTrackingCap_Position) {
- mDisplayInfo.mCapabilityFlags |= VRDisplayCapabilityFlags::Cap_Position;
- mDisplayInfo.mCapabilityFlags |= VRDisplayCapabilityFlags::Cap_LinearAcceleration;
- }
- mDisplayInfo.mCapabilityFlags |= VRDisplayCapabilityFlags::Cap_External;
- mDisplayInfo.mCapabilityFlags |= VRDisplayCapabilityFlags::Cap_Present;
-
- mFOVPort[VRDisplayInfo::Eye_Left] = mDesc.DefaultEyeFov[ovrEye_Left];
- mFOVPort[VRDisplayInfo::Eye_Right] = mDesc.DefaultEyeFov[ovrEye_Right];
-
- mDisplayInfo.mEyeFOV[VRDisplayInfo::Eye_Left] = FromFovPort(mFOVPort[VRDisplayInfo::Eye_Left]);
- mDisplayInfo.mEyeFOV[VRDisplayInfo::Eye_Right] = FromFovPort(mFOVPort[VRDisplayInfo::Eye_Right]);
-
- float pixelsPerDisplayPixel = 1.0;
- ovrSizei texSize[2];
-
- // get eye parameters and create the mesh
- for (uint32_t eye = 0; eye < VRDisplayInfo::NumEyes; eye++) {
-
- ovrEyeRenderDesc renderDesc = ovr_GetRenderDesc(mSession, (ovrEyeType)eye, mFOVPort[eye]);
-
- // As of Oculus 0.6.0, the HmdToEyeOffset values are correct and don't need to be negated.
- mDisplayInfo.mEyeTranslation[eye] = Point3D(renderDesc.HmdToEyeOffset.x, renderDesc.HmdToEyeOffset.y, renderDesc.HmdToEyeOffset.z);
-
- texSize[eye] = ovr_GetFovTextureSize(mSession, (ovrEyeType)eye, mFOVPort[eye], pixelsPerDisplayPixel);
- }
-
- // take the max of both for eye resolution
- mDisplayInfo.mEyeResolution.width = std::max(texSize[VRDisplayInfo::Eye_Left].w, texSize[VRDisplayInfo::Eye_Right].w);
- mDisplayInfo.mEyeResolution.height = std::max(texSize[VRDisplayInfo::Eye_Left].h, texSize[VRDisplayInfo::Eye_Right].h);
-}
-
-VRDisplayOculus::~VRDisplayOculus() {
- StopPresentation();
- Destroy();
- MOZ_COUNT_DTOR_INHERITED(VRDisplayOculus, VRDisplayHost);
-}
-
-void
-VRDisplayOculus::Destroy()
-{
- if (mSession) {
- ovr_Destroy(mSession);
- mSession = nullptr;
- }
-}
-
-void
-VRDisplayOculus::ZeroSensor()
-{
- ovr_RecenterTrackingOrigin(mSession);
-}
-
-VRHMDSensorState
-VRDisplayOculus::GetSensorState()
-{
- mInputFrameID++;
-
- VRHMDSensorState result;
- double frameDelta = 0.0f;
- if (gfxPrefs::VRPosePredictionEnabled()) {
- // XXX We might need to call ovr_GetPredictedDisplayTime even if we don't use the result.
- // If we don't call it, the Oculus driver will spew out many warnings...
- double predictedFrameTime = ovr_GetPredictedDisplayTime(mSession, mInputFrameID);
- frameDelta = predictedFrameTime - ovr_GetTimeInSeconds();
- }
- result = GetSensorState(frameDelta);
- result.inputFrameID = mInputFrameID;
- mLastSensorState[result.inputFrameID % kMaxLatencyFrames] = result;
- return result;
-}
-
-VRHMDSensorState
-VRDisplayOculus::GetImmediateSensorState()
-{
- return GetSensorState(0.0);
-}
-
-VRHMDSensorState
-VRDisplayOculus::GetSensorState(double timeOffset)
-{
- VRHMDSensorState result;
- result.Clear();
-
- ovrTrackingState state = ovr_GetTrackingState(mSession, timeOffset, true);
- ovrPoseStatef& pose(state.HeadPose);
-
- result.timestamp = pose.TimeInSeconds;
-
- if (state.StatusFlags & ovrStatus_OrientationTracked) {
- result.flags |= VRDisplayCapabilityFlags::Cap_Orientation;
-
- result.orientation[0] = pose.ThePose.Orientation.x;
- result.orientation[1] = pose.ThePose.Orientation.y;
- result.orientation[2] = pose.ThePose.Orientation.z;
- result.orientation[3] = pose.ThePose.Orientation.w;
-
- result.angularVelocity[0] = pose.AngularVelocity.x;
- result.angularVelocity[1] = pose.AngularVelocity.y;
- result.angularVelocity[2] = pose.AngularVelocity.z;
-
- result.flags |= VRDisplayCapabilityFlags::Cap_AngularAcceleration;
-
- result.angularAcceleration[0] = pose.AngularAcceleration.x;
- result.angularAcceleration[1] = pose.AngularAcceleration.y;
- result.angularAcceleration[2] = pose.AngularAcceleration.z;
- }
-
- if (state.StatusFlags & ovrStatus_PositionTracked) {
- result.flags |= VRDisplayCapabilityFlags::Cap_Position;
-
- result.position[0] = pose.ThePose.Position.x;
- result.position[1] = pose.ThePose.Position.y;
- result.position[2] = pose.ThePose.Position.z;
-
- result.linearVelocity[0] = pose.LinearVelocity.x;
- result.linearVelocity[1] = pose.LinearVelocity.y;
- result.linearVelocity[2] = pose.LinearVelocity.z;
-
- result.flags |= VRDisplayCapabilityFlags::Cap_LinearAcceleration;
-
- result.linearAcceleration[0] = pose.LinearAcceleration.x;
- result.linearAcceleration[1] = pose.LinearAcceleration.y;
- result.linearAcceleration[2] = pose.LinearAcceleration.z;
- }
- result.flags |= VRDisplayCapabilityFlags::Cap_External;
- result.flags |= VRDisplayCapabilityFlags::Cap_Present;
-
- return result;
-}
-
-void
-VRDisplayOculus::StartPresentation()
-{
- if (mIsPresenting) {
- return;
- }
- mIsPresenting = true;
-
- /**
- * The presentation format is determined by content, which describes the
- * left and right eye rectangles in the VRLayer. The default, if no
- * coordinates are passed is to place the left and right eye textures
- * side-by-side within the buffer.
- *
- * XXX - An optimization would be to dynamically resize this buffer
- * to accomodate sites that are choosing to render in a lower
- * resolution or are using space outside of the left and right
- * eye textures for other purposes. (Bug 1291443)
- */
- ovrTextureSwapChainDesc desc;
- memset(&desc, 0, sizeof(desc));
- desc.Type = ovrTexture_2D;
- desc.ArraySize = 1;
- desc.Format = OVR_FORMAT_B8G8R8A8_UNORM_SRGB;
- desc.Width = mDisplayInfo.mEyeResolution.width * 2;
- desc.Height = mDisplayInfo.mEyeResolution.height;
- desc.MipLevels = 1;
- desc.SampleCount = 1;
- desc.StaticImage = false;
- desc.MiscFlags = ovrTextureMisc_DX_Typeless;
- desc.BindFlags = ovrTextureBind_DX_RenderTarget;
-
- if (!mDevice) {
- mDevice = gfx::DeviceManagerDx::Get()->GetCompositorDevice();
- if (!mDevice) {
- NS_WARNING("Failed to get a D3D11Device for Oculus");
- return;
- }
- }
-
- mDevice->GetImmediateContext(getter_AddRefs(mContext));
- if (!mContext) {
- NS_WARNING("Failed to get immediate context for Oculus");
- return;
- }
-
- if (FAILED(mDevice->CreateVertexShader(sLayerQuadVS.mData, sLayerQuadVS.mLength, nullptr, &mQuadVS))) {
- NS_WARNING("Failed to create vertex shader for Oculus");
- return;
- }
-
- if (FAILED(mDevice->CreatePixelShader(sRGBShader.mData, sRGBShader.mLength, nullptr, &mQuadPS))) {
- NS_WARNING("Failed to create pixel shader for Oculus");
- return;
- }
-
- CD3D11_BUFFER_DESC cBufferDesc(sizeof(layers::VertexShaderConstants),
- D3D11_BIND_CONSTANT_BUFFER,
- D3D11_USAGE_DYNAMIC,
- D3D11_CPU_ACCESS_WRITE);
-
- if (FAILED(mDevice->CreateBuffer(&cBufferDesc, nullptr, getter_AddRefs(mVSConstantBuffer)))) {
- NS_WARNING("Failed to vertex shader constant buffer for Oculus");
- return;
- }
-
- cBufferDesc.ByteWidth = sizeof(layers::PixelShaderConstants);
- if (FAILED(mDevice->CreateBuffer(&cBufferDesc, nullptr, getter_AddRefs(mPSConstantBuffer)))) {
- NS_WARNING("Failed to pixel shader constant buffer for Oculus");
- return;
- }
-
- CD3D11_SAMPLER_DESC samplerDesc(D3D11_DEFAULT);
- if (FAILED(mDevice->CreateSamplerState(&samplerDesc, getter_AddRefs(mLinearSamplerState)))) {
- NS_WARNING("Failed to create sampler state for Oculus");
- return;
- }
-
- D3D11_INPUT_ELEMENT_DESC layout[] =
- {
- { "POSITION", 0, DXGI_FORMAT_R32G32_FLOAT, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0 },
- };
-
- if (FAILED(mDevice->CreateInputLayout(layout,
- sizeof(layout) / sizeof(D3D11_INPUT_ELEMENT_DESC),
- sLayerQuadVS.mData,
- sLayerQuadVS.mLength,
- getter_AddRefs(mInputLayout)))) {
- NS_WARNING("Failed to create input layout for Oculus");
- return;
- }
-
- ovrResult orv = ovr_CreateTextureSwapChainDX(mSession, mDevice, &desc, &mTextureSet);
- if (orv != ovrSuccess) {
- NS_WARNING("ovr_CreateTextureSwapChainDX failed");
- return;
- }
-
- int textureCount = 0;
- orv = ovr_GetTextureSwapChainLength(mSession, mTextureSet, &textureCount);
- if (orv != ovrSuccess) {
- NS_WARNING("ovr_GetTextureSwapChainLength failed");
- return;
- }
-
- Vertex vertices[] = { { { 0.0, 0.0 } },{ { 1.0, 0.0 } },{ { 0.0, 1.0 } },{ { 1.0, 1.0 } } };
- CD3D11_BUFFER_DESC bufferDesc(sizeof(vertices), D3D11_BIND_VERTEX_BUFFER);
- D3D11_SUBRESOURCE_DATA data;
- data.pSysMem = (void*)vertices;
-
- if (FAILED(mDevice->CreateBuffer(&bufferDesc, &data, getter_AddRefs(mVertexBuffer)))) {
- NS_WARNING("Failed to create vertex buffer for Oculus");
- return;
- }
-
- mRenderTargets.SetLength(textureCount);
-
- memset(&mVSConstants, 0, sizeof(mVSConstants));
- memset(&mPSConstants, 0, sizeof(mPSConstants));
-
- for (int i = 0; i < textureCount; ++i) {
- RefPtr<CompositingRenderTargetD3D11> rt;
- ID3D11Texture2D* texture = nullptr;
- orv = ovr_GetTextureSwapChainBufferDX(mSession, mTextureSet, i, IID_PPV_ARGS(&texture));
- MOZ_ASSERT(orv == ovrSuccess, "ovr_GetTextureSwapChainBufferDX failed.");
- rt = new CompositingRenderTargetD3D11(texture, IntPoint(0, 0), DXGI_FORMAT_B8G8R8A8_UNORM);
- rt->SetSize(IntSize(mDisplayInfo.mEyeResolution.width * 2, mDisplayInfo.mEyeResolution.height));
- mRenderTargets[i] = rt;
- texture->Release();
- }
-}
-
-void
-VRDisplayOculus::StopPresentation()
-{
- if (!mIsPresenting) {
- return;
- }
- mIsPresenting = false;
-
- ovr_SubmitFrame(mSession, 0, nullptr, nullptr, 0);
-
- if (mTextureSet) {
- ovr_DestroyTextureSwapChain(mSession, mTextureSet);
- mTextureSet = nullptr;
- }
-}
-
-/*static*/ already_AddRefed<VRDisplayManagerOculus>
-VRDisplayManagerOculus::Create()
-{
- MOZ_ASSERT(NS_IsMainThread());
-
- if (!gfxPrefs::VREnabled() || !gfxPrefs::VROculusEnabled())
- {
- return nullptr;
- }
-
- if (!InitializeOculusCAPI()) {
- return nullptr;
- }
-
- RefPtr<VRDisplayManagerOculus> manager = new VRDisplayManagerOculus();
- return manager.forget();
-}
-
-bool
-VRDisplayManagerOculus::Init()
-{
- if (!mOculusInitialized) {
- nsIThread* thread = nullptr;
- NS_GetCurrentThread(&thread);
- mOculusThread = already_AddRefed<nsIThread>(thread);
-
- ovrInitParams params;
- memset(&params, 0, sizeof(params));
- params.Flags = ovrInit_RequestVersion;
- params.RequestedMinorVersion = OVR_MINOR_VERSION;
- params.LogCallback = nullptr;
- params.ConnectionTimeoutMS = 0;
-
- ovrResult orv = ovr_Initialize(&params);
-
- if (orv == ovrSuccess) {
- mOculusInitialized = true;
- }
- }
-
- return mOculusInitialized;
-}
-
-void
-VRDisplayManagerOculus::Destroy()
-{
- if (mOculusInitialized) {
- MOZ_ASSERT(NS_GetCurrentThread() == mOculusThread);
- mOculusThread = nullptr;
-
- mHMDInfo = nullptr;
-
- ovr_Shutdown();
- mOculusInitialized = false;
- }
-}
-
-void
-VRDisplayManagerOculus::GetHMDs(nsTArray<RefPtr<VRDisplayHost>>& aHMDResult)
-{
- if (!mOculusInitialized) {
- return;
- }
-
- // ovr_Create can be slow when no HMD is present and we wish
- // to keep the same oculus session when possible, so we detect
- // presence of an HMD with ovr_GetHmdDesc before calling ovr_Create
- ovrHmdDesc desc = ovr_GetHmdDesc(NULL);
- if (desc.Type == ovrHmd_None) {
- // No HMD connected.
- mHMDInfo = nullptr;
- } else if (mHMDInfo == nullptr) {
- // HMD Detected
- ovrSession session;
- ovrGraphicsLuid luid;
- ovrResult orv = ovr_Create(&session, &luid);
- if (orv == ovrSuccess) {
- mHMDInfo = new VRDisplayOculus(session);
- }
- }
-
- if (mHMDInfo) {
- aHMDResult.AppendElement(mHMDInfo);
- }
-}
-
-already_AddRefed<CompositingRenderTargetD3D11>
-VRDisplayOculus::GetNextRenderTarget()
-{
- int currentRenderTarget = 0;
- DebugOnly<ovrResult> orv = ovr_GetTextureSwapChainCurrentIndex(mSession, mTextureSet, &currentRenderTarget);
- MOZ_ASSERT(orv == ovrSuccess, "ovr_GetTextureSwapChainCurrentIndex failed.");
-
- mRenderTargets[currentRenderTarget]->ClearOnBind();
- RefPtr<CompositingRenderTargetD3D11> rt = mRenderTargets[currentRenderTarget];
- return rt.forget();
-}
-
-bool
-VRDisplayOculus::UpdateConstantBuffers()
-{
- HRESULT hr;
- D3D11_MAPPED_SUBRESOURCE resource;
- resource.pData = nullptr;
-
- hr = mContext->Map(mVSConstantBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &resource);
- if (FAILED(hr) || !resource.pData) {
- return false;
- }
- *(VertexShaderConstants*)resource.pData = mVSConstants;
- mContext->Unmap(mVSConstantBuffer, 0);
- resource.pData = nullptr;
-
- hr = mContext->Map(mPSConstantBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &resource);
- if (FAILED(hr) || !resource.pData) {
- return false;
- }
- *(PixelShaderConstants*)resource.pData = mPSConstants;
- mContext->Unmap(mPSConstantBuffer, 0);
-
- ID3D11Buffer *buffer = mVSConstantBuffer;
- mContext->VSSetConstantBuffers(0, 1, &buffer);
- buffer = mPSConstantBuffer;
- mContext->PSSetConstantBuffers(0, 1, &buffer);
- return true;
-}
-
-void
-VRDisplayOculus::SubmitFrame(TextureSourceD3D11* aSource,
- const IntSize& aSize,
- const VRHMDSensorState& aSensorState,
- const gfx::Rect& aLeftEyeRect,
- const gfx::Rect& aRightEyeRect)
-{
- if (!mIsPresenting) {
- return;
- }
- if (mRenderTargets.IsEmpty()) {
- /**
- * XXX - We should resolve fail the promise returned by
- * VRDisplay.requestPresent() when the DX11 resources fail allocation
- * in VRDisplayOculus::StartPresentation().
- * Bailing out here prevents the crash but content should be aware
- * that frames are not being presented.
- * See Bug 1299309.
- **/
- return;
- }
- MOZ_ASSERT(mDevice);
- MOZ_ASSERT(mContext);
-
- RefPtr<CompositingRenderTargetD3D11> surface = GetNextRenderTarget();
-
- surface->BindRenderTarget(mContext);
-
- Matrix viewMatrix = Matrix::Translation(-1.0, 1.0);
- viewMatrix.PreScale(2.0f / float(aSize.width), 2.0f / float(aSize.height));
- viewMatrix.PreScale(1.0f, -1.0f);
- Matrix4x4 projection = Matrix4x4::From2D(viewMatrix);
- projection._33 = 0.0f;
-
- Matrix transform2d;
- gfx::Matrix4x4 transform = gfx::Matrix4x4::From2D(transform2d);
-
- D3D11_VIEWPORT viewport;
- viewport.MinDepth = 0.0f;
- viewport.MaxDepth = 1.0f;
- viewport.Width = aSize.width;
- viewport.Height = aSize.height;
- viewport.TopLeftX = 0;
- viewport.TopLeftY = 0;
-
- D3D11_RECT scissor;
- scissor.left = 0;
- scissor.right = aSize.width;
- scissor.top = 0;
- scissor.bottom = aSize.height;
-
- memcpy(&mVSConstants.layerTransform, &transform._11, sizeof(mVSConstants.layerTransform));
- memcpy(&mVSConstants.projection, &projection._11, sizeof(mVSConstants.projection));
- mVSConstants.renderTargetOffset[0] = 0.0f;
- mVSConstants.renderTargetOffset[1] = 0.0f;
- mVSConstants.layerQuad = Rect(0.0f, 0.0f, aSize.width, aSize.height);
- mVSConstants.textureCoords = Rect(0.0f, 1.0f, 1.0f, -1.0f);
-
- mPSConstants.layerOpacity[0] = 1.0f;
-
- ID3D11Buffer* vbuffer = mVertexBuffer;
- UINT vsize = sizeof(Vertex);
- UINT voffset = 0;
- mContext->IASetVertexBuffers(0, 1, &vbuffer, &vsize, &voffset);
- mContext->IASetIndexBuffer(nullptr, DXGI_FORMAT_R16_UINT, 0);
- mContext->IASetInputLayout(mInputLayout);
- mContext->RSSetViewports(1, &viewport);
- mContext->RSSetScissorRects(1, &scissor);
- mContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLESTRIP);
- mContext->VSSetShader(mQuadVS, nullptr, 0);
- mContext->PSSetShader(mQuadPS, nullptr, 0);
- ID3D11ShaderResourceView* srView = aSource->GetShaderResourceView();
- mContext->PSSetShaderResources(0 /* 0 == TexSlot::RGB */, 1, &srView);
- // XXX Use Constant from TexSlot in CompositorD3D11.cpp?
-
- ID3D11SamplerState *sampler = mLinearSamplerState;
- mContext->PSSetSamplers(0, 1, &sampler);
-
- if (!UpdateConstantBuffers()) {
- NS_WARNING("Failed to update constant buffers for Oculus");
- return;
- }
-
- mContext->Draw(4, 0);
-
- ovrResult orv = ovr_CommitTextureSwapChain(mSession, mTextureSet);
- if (orv != ovrSuccess) {
- NS_WARNING("ovr_CommitTextureSwapChain failed.\n");
- return;
- }
-
- ovrLayerEyeFov layer;
- memset(&layer, 0, sizeof(layer));
- layer.Header.Type = ovrLayerType_EyeFov;
- layer.Header.Flags = 0;
- layer.ColorTexture[0] = mTextureSet;
- layer.ColorTexture[1] = nullptr;
- layer.Fov[0] = mFOVPort[0];
- layer.Fov[1] = mFOVPort[1];
- layer.Viewport[0].Pos.x = aSize.width * aLeftEyeRect.x;
- layer.Viewport[0].Pos.y = aSize.height * aLeftEyeRect.y;
- layer.Viewport[0].Size.w = aSize.width * aLeftEyeRect.width;
- layer.Viewport[0].Size.h = aSize.height * aLeftEyeRect.height;
- layer.Viewport[1].Pos.x = aSize.width * aRightEyeRect.x;
- layer.Viewport[1].Pos.y = aSize.height * aRightEyeRect.y;
- layer.Viewport[1].Size.w = aSize.width * aRightEyeRect.width;
- layer.Viewport[1].Size.h = aSize.height * aRightEyeRect.height;
-
- const Point3D& l = mDisplayInfo.mEyeTranslation[0];
- const Point3D& r = mDisplayInfo.mEyeTranslation[1];
- const ovrVector3f hmdToEyeViewOffset[2] = { { l.x, l.y, l.z },
- { r.x, r.y, r.z } };
-
- for (uint32_t i = 0; i < 2; ++i) {
- Quaternion o(aSensorState.orientation[0],
- aSensorState.orientation[1],
- aSensorState.orientation[2],
- aSensorState.orientation[3]);
- Point3D vo(hmdToEyeViewOffset[i].x, hmdToEyeViewOffset[i].y, hmdToEyeViewOffset[i].z);
- Point3D p = o.RotatePoint(vo);
- layer.RenderPose[i].Orientation.x = o.x;
- layer.RenderPose[i].Orientation.y = o.y;
- layer.RenderPose[i].Orientation.z = o.z;
- layer.RenderPose[i].Orientation.w = o.w;
- layer.RenderPose[i].Position.x = p.x + aSensorState.position[0];
- layer.RenderPose[i].Position.y = p.y + aSensorState.position[1];
- layer.RenderPose[i].Position.z = p.z + aSensorState.position[2];
- }
-
- ovrLayerHeader *layers = &layer.Header;
- orv = ovr_SubmitFrame(mSession, aSensorState.inputFrameID, nullptr, &layers, 1);
-
- if (orv != ovrSuccess) {
- printf_stderr("ovr_SubmitFrame failed.\n");
- }
-
- // Trigger the next VSync immediately
- VRManager *vm = VRManager::Get();
- MOZ_ASSERT(vm);
- vm->NotifyVRVsync(mDisplayInfo.mDisplayID);
-}
-
-void
-VRDisplayOculus::NotifyVSync()
-{
- ovrSessionStatus sessionStatus;
- ovrResult ovr = ovr_GetSessionStatus(mSession, &sessionStatus);
- mDisplayInfo.mIsConnected = (ovr == ovrSuccess && sessionStatus.HmdPresent);
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 03:08:47 +0000