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DeviceDelegateOculusVR.cpp
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DeviceDelegateOculusVR.cpp
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/* -*- 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/. */
#include "DeviceDelegateOculusVR.h"
#include "OculusSwapChain.h"
#include "OculusVRLayers.h"
#include "DeviceUtils.h"
#include "ElbowModel.h"
#include "BrowserEGLContext.h"
#include "VRBrowser.h"
#include "VRLayer.h"
#include <android_native_app_glue.h>
#include <EGL/egl.h>
#include "vrb/CameraEye.h"
#include "vrb/Color.h"
#include "vrb/ConcreteClass.h"
#include "vrb/FBO.h"
#include "vrb/GLError.h"
#include "vrb/Matrix.h"
#include "vrb/Quaternion.h"
#include "vrb/RenderContext.h"
#include "vrb/Vector.h"
#include <vector>
#include <cstdlib>
#include <unistd.h>
#include <VrApi_Types.h>
#include "VrApi.h"
#include "VrApi_Helpers.h"
#include "VrApi_Input.h"
#include "VrApi_SystemUtils.h"
#include "OVR_Platform.h"
#include "OVR_Message.h"
#include "VRBrowser.h"
#define OCULUS_6DOF_APP_ID "2180252408763702"
#define OCULUS_3DOF_APP_ID "2208418715853974"
namespace crow {
const vrb::Vector kAverageHeight(0.0f, 1.7f, 0.0f);
// Height used to match Oculus default in WebVR
const vrb::Vector kAverageOculusHeight(0.0f, 1.65f, 0.0f);
struct DeviceDelegateOculusVR::State {
struct ControllerState {
const int32_t index;
const ElbowModel::HandEnum hand;
bool enabled = false;
bool created = false;
ovrDeviceID deviceId = ovrDeviceIdType_Invalid;
ovrInputTrackedRemoteCapabilities capabilities = {};
vrb::Matrix transform = vrb::Matrix::Identity();
ovrInputStateTrackedRemote inputState = {};
uint64_t inputFrameID = 0;
float remainingVibrateTime = 0.0f;
double lastHapticUpdateTimeStamp = 0.0f;
bool Is6DOF() const {
return (capabilities.ControllerCapabilities & ovrControllerCaps_HasPositionTracking) &&
(capabilities.ControllerCapabilities & ovrControllerCaps_HasOrientationTracking);
}
ControllerState(const int32_t aIndex, const ElbowModel::HandEnum aHand) : index(aIndex), hand(aHand) {}
ControllerState(const ControllerState& controllerStateList) = default;
ControllerState() = delete;
ControllerState& operator=(const ControllerState&) = delete;
};
vrb::RenderContextWeak context;
android_app* app = nullptr;
bool initialized = false;
bool applicationEntitled = false;
bool layersEnabled = true;
ovrJava java = {};
ovrMobile* ovr = nullptr;
OculusEyeSwapChainPtr eyeSwapChains[VRAPI_EYE_COUNT];
OculusLayerCubePtr cubeLayer;
OculusLayerEquirectPtr equirectLayer;
std::vector<OculusLayerPtr> uiLayers;
ovrTextureSwapChain* clearColorSwapChain = nullptr;
device::RenderMode renderMode = device::RenderMode::StandAlone;
vrb::FBOPtr currentFBO;
vrb::FBOPtr previousFBO;
vrb::CameraEyePtr cameras[2];
uint32_t frameIndex = 0;
double predictedDisplayTime = 0;
ovrTracking2 predictedTracking = {};
ovrTracking2 discardPredictedTracking = {};
uint32_t discardedFrameIndex = 0;
int discardCount = 0;
uint32_t renderWidth = 0;
uint32_t renderHeight = 0;
vrb::Color clearColor;
float near = 0.1f;
float far = 100.f;
std::vector<ControllerState> controllerStateList;
crow::ElbowModelPtr elbow;
ControllerDelegatePtr controller;
ImmersiveDisplayPtr immersiveDisplay;
int reorientCount = -1;
vrb::Matrix reorientMatrix = vrb::Matrix::Identity();
device::CPULevel minCPULevel = device::CPULevel::Normal;
device::DeviceType deviceType = device::UnknownType;
void UpdatePerspective() {
float fovX = vrapi_GetSystemPropertyFloat(&java, VRAPI_SYS_PROP_SUGGESTED_EYE_FOV_DEGREES_X);
float fovY = vrapi_GetSystemPropertyFloat(&java, VRAPI_SYS_PROP_SUGGESTED_EYE_FOV_DEGREES_Y);
ovrMatrix4f projection = ovrMatrix4f_CreateProjectionFov(fovX, fovY, 0.0, 0.0, near, far);
auto matrix = vrb::Matrix::FromRowMajor(projection.M);
for (int i = 0; i < VRAPI_EYE_COUNT; ++i) {
cameras[i]->SetPerspective(matrix);
}
if (immersiveDisplay) {
const float fovXHalf = fovX * 0.5f;
const float fovYHalf = fovY * 0.5f;
immersiveDisplay->SetFieldOfView(device::Eye::Left, fovXHalf, fovXHalf, fovYHalf, fovYHalf);
immersiveDisplay->SetFieldOfView(device::Eye::Right, fovXHalf, fovXHalf, fovYHalf, fovYHalf);
}
}
void Initialize() {
elbow = ElbowModel::Create();
layersEnabled = VRBrowser::AreLayersEnabled();
vrb::RenderContextPtr localContext = context.lock();
java.Vm = app->activity->vm;
(*app->activity->vm).AttachCurrentThread(&java.Env, NULL);
java.ActivityObject = java.Env->NewGlobalRef(app->activity->clazz);
// Initialize the API.
auto parms = vrapi_DefaultInitParms(&java);
auto status = vrapi_Initialize(&parms);
if (status != VRAPI_INITIALIZE_SUCCESS) {
VRB_LOG("Failed to initialize VrApi!. Error: %d", status);
exit(status);
return;
}
initialized = true;
SetRenderSize(device::RenderMode::StandAlone);
for (int i = 0; i < VRAPI_EYE_COUNT; ++i) {
cameras[i] = vrb::CameraEye::Create(localContext->GetRenderThreadCreationContext());
eyeSwapChains[i] = OculusEyeSwapChain::create();
}
UpdatePerspective();
reorientCount = vrapi_GetSystemStatusInt(&java, VRAPI_SYS_STATUS_RECENTER_COUNT);
vrapi_SetPropertyInt(&java, VRAPI_BLOCK_REMOTE_BUTTONS_WHEN_NOT_EMULATING_HMT, 0);
// This needs to be set to 0 so that the volume buttons work. I'm not sure why since the
// docs in the header indicate that setting this to false (0) means you have to
// handle the gamepad events yourself.
vrapi_SetPropertyInt(&java, VRAPI_EAT_NATIVE_GAMEPAD_EVENTS, 0);
// Reorient the headset after controller recenter.
vrapi_SetPropertyInt(&java, VRAPI_REORIENT_HMD_ON_CONTROLLER_RECENTER, 1);
const char * appId = OCULUS_6DOF_APP_ID;
const int type = vrapi_GetSystemPropertyInt(&java, VRAPI_SYS_PROP_DEVICE_TYPE);
if ((type >= VRAPI_DEVICE_TYPE_OCULUSGO_START ) && (type <= VRAPI_DEVICE_TYPE_OCULUSGO_END)) {
VRB_DEBUG("Detected Oculus Go");
deviceType = device::OculusGo;
appId = OCULUS_3DOF_APP_ID;
} else if ((type >= VRAPI_DEVICE_TYPE_OCULUSQUEST_START) && (type <= VRAPI_DEVICE_TYPE_OCULUSQUEST_END)) {
VRB_DEBUG("Detected Oculus Quest");
deviceType = device::OculusQuest;
} else {
VRB_DEBUG("Detected Unknown Oculus device");
}
if (!ovr_IsPlatformInitialized()) {
ovrRequest result = ovr_PlatformInitializeAndroidAsynchronous(appId, java.ActivityObject,
java.Env);
if (invalidRequestID == result) {
// Initialization failed which means either the oculus service isn’t on the machine or they’ve hacked their DLL.
VRB_LOG("ovr_PlatformInitializeAndroidAsynchronous failed: %d", (int32_t) result);
#if STORE_BUILD == 1
VRBrowser::HaltActivity(0);
#endif
} else {
VRB_LOG("ovr_PlatformInitializeAndroidAsynchronous succeeded");
ovr_Entitlement_GetIsViewerEntitled();
}
} else if (!applicationEntitled) {
ovr_Entitlement_GetIsViewerEntitled();
}
}
void UpdateTrackingMode() {
if (ovr) {
vrapi_SetTrackingSpace(ovr, VRAPI_TRACKING_SPACE_LOCAL);
}
}
void UpdateClockLevels() {
if (!ovr) {
return;
}
if (renderMode == device::RenderMode::StandAlone && minCPULevel == device::CPULevel::Normal) {
vrapi_SetClockLevels(ovr, 2, 2);
} else {
vrapi_SetClockLevels(ovr, 4, 4);
}
}
void UpdateDisplayRefreshRate() {
if (!ovr || !IsOculusGo()) {
return;
}
if (renderMode == device::RenderMode::StandAlone) {
vrapi_SetDisplayRefreshRate(ovr, 72.0f);
} else {
vrapi_SetDisplayRefreshRate(ovr, 60.0f);
}
}
void AddUILayer(const OculusLayerPtr& aLayer, VRLayerSurface::SurfaceType aSurfaceType) {
if (ovr) {
vrb::RenderContextPtr ctx = context.lock();
aLayer->Init(java.Env, ctx);
}
uiLayers.push_back(aLayer);
if (aSurfaceType == VRLayerSurface::SurfaceType::FBO) {
aLayer->SetBindDelegate([=](const vrb::FBOPtr& aFBO, GLenum aTarget, bool bound){
if (aFBO) {
HandleQuadLayerBind(aFBO, aTarget, bound);
}
});
if (currentFBO) {
currentFBO->Bind();
}
}
}
void GetImmersiveRenderSize(uint32_t& aWidth, uint32_t& aHeight) {
aWidth = (uint32_t)(vrapi_GetSystemPropertyInt(&java, VRAPI_SYS_PROP_SUGGESTED_EYE_TEXTURE_WIDTH));
aHeight = (uint32_t)(vrapi_GetSystemPropertyInt(&java, VRAPI_SYS_PROP_SUGGESTED_EYE_TEXTURE_HEIGHT));
}
void GetStandaloneRenderSize(uint32_t& aWidth, uint32_t& aHeight) {
const float scale = layersEnabled ? 1.0f : 1.5f;
aWidth = (uint32_t)(scale * vrapi_GetSystemPropertyInt(&java, VRAPI_SYS_PROP_SUGGESTED_EYE_TEXTURE_WIDTH));
aHeight = (uint32_t)(scale * vrapi_GetSystemPropertyInt(&java, VRAPI_SYS_PROP_SUGGESTED_EYE_TEXTURE_HEIGHT));
}
bool IsOculusQuest() const {
return deviceType == device::OculusQuest;
}
bool IsOculusGo() const {
return deviceType == device::OculusGo;
}
bool Is6DOF() const {
// ovrInputHeadsetCapabilities is unavailable in Oculus mobile SDK,
// the current workaround is checking if it is Quest.
return IsOculusQuest();
}
void SetRenderSize(device::RenderMode aRenderMode) {
if (renderMode == device::RenderMode::StandAlone) {
GetStandaloneRenderSize(renderWidth, renderHeight);
} else {
GetImmersiveRenderSize(renderWidth, renderHeight);
}
}
void Shutdown() {
// Shutdown Oculus mobile SDK
if (initialized) {
vrapi_Shutdown();
initialized = false;
controllerStateList.clear();
}
// Release activity reference
if (java.ActivityObject) {
java.Env->DeleteGlobalRef(java.ActivityObject);
java = {};
}
}
int32_t FindControllerIndex(const ElbowModel::HandEnum aHand) {
int32_t found = -1;
for (ControllerState& controller: controllerStateList) {
if (controller.hand == aHand) {
found = controller.index;
}
}
if (found < 0) {
found = (int32_t)controllerStateList.size();
controllerStateList.emplace_back(ControllerState(found, aHand));
}
return found;
}
void UpdateDeviceId() {
if (!controller || !ovr) {
return;
}
for (ControllerState& controllerState: controllerStateList) {
controllerState.enabled = false;
}
uint32_t count = 0;
ovrInputCapabilityHeader capsHeader = {};
while (vrapi_EnumerateInputDevices(ovr, count++, &capsHeader) >= 0) {
// We are only interested in the remote controller input device
if (capsHeader.Type == ovrControllerType_TrackedRemote) {
ovrInputTrackedRemoteCapabilities caps = {};
caps.Header = capsHeader;
ovrResult result = vrapi_GetInputDeviceCapabilities(ovr, &caps.Header);
if (result != ovrSuccess) {
VRB_LOG("vrapi_GetInputDeviceCapabilities failed with error: %d", result);
continue;
}
const int32_t index = FindControllerIndex(caps.ControllerCapabilities & ovrControllerCaps_LeftHand ? ElbowModel::HandEnum::Left : ElbowModel::HandEnum::Right);
if ((index < 0) || index >= (controllerStateList.size())) {
continue;
}
ControllerState& controllerState = controllerStateList[index];
if ((controllerState.deviceId != ovrDeviceIdType_Invalid) &&
(controllerState.deviceId != capsHeader.DeviceID)) {
VRB_DEBUG("%s handed controller DeviceID has changed from %u to %u",
(controllerState.hand == ElbowModel::HandEnum::Left ? "Left" : "Right"),
controllerState.deviceId, capsHeader.DeviceID);
}
controllerState.deviceId = capsHeader.DeviceID;
controllerState.capabilities = caps;
controllerState.enabled = true;
if (!controllerState.created) {
if (controllerState.capabilities.ControllerCapabilities &
ovrControllerCaps_ModelOculusTouch) {
std::string controllerName;
vrb::Matrix beamTransform(vrb::Matrix::Identity());
if (controllerState.hand == ElbowModel::HandEnum::Left) {
beamTransform.TranslateInPlace(vrb::Vector(-0.011f, -0.007f, 0.0f));
controllerName = "Oculus Touch (Left)";
} else {
beamTransform.TranslateInPlace(vrb::Vector(0.011f, -0.007f, 0.0f));
controllerName = "Oculus Touch (Right)";
}
controller->CreateController(controllerState.index, int32_t(controllerState.hand),
controllerName, beamTransform);
controller->SetButtonCount(controllerState.index, 6);
controller->SetHapticCount(controllerState.index, 1);
} else {
// Oculus Go only has one kind of controller model.
controller->CreateController(controllerState.index, 0, "Oculus Go Controller");
controller->SetButtonCount(controllerState.index, 2);
// Oculus Go has no haptic feedback.
controller->SetHapticCount(controllerState.index, 0);
}
controllerState.created = true;
}
}
}
for (ControllerState& controllerState: controllerStateList) {
controller->SetLeftHanded(controllerState.index, controllerState.hand == ElbowModel::HandEnum::Left);
controller->SetEnabled(controllerState.index, controllerState.enabled);
controller->SetVisible(controllerState.index, controllerState.enabled);
}
}
void UpdateControllers(const vrb::Matrix & head) {
UpdateDeviceId();
if (!controller) {
return;
}
for (ControllerState& controllerState: controllerStateList) {
if (controllerState.deviceId == ovrDeviceIdType_Invalid) {
continue;
}
ovrTracking tracking = {};
if (vrapi_GetInputTrackingState(ovr, controllerState.deviceId, predictedDisplayTime, &tracking) != ovrSuccess) {
VRB_LOG("Failed to read controller tracking controllerStateList");
continue;
}
device::CapabilityFlags flags = 0;
if (controllerState.capabilities.ControllerCapabilities & ovrControllerCaps_HasOrientationTracking) {
auto &orientation = tracking.HeadPose.Pose.Orientation;
vrb::Quaternion quat(orientation.x, orientation.y, orientation.z, orientation.w);
controllerState.transform = vrb::Matrix::Rotation(quat);
flags |= device::Orientation;
}
if (controllerState.capabilities.ControllerCapabilities & ovrControllerCaps_HasPositionTracking) {
auto & position = tracking.HeadPose.Pose.Position;
vrb::Vector headPos(position.x, position.y, position.z);
if (renderMode == device::RenderMode::StandAlone) {
headPos += kAverageHeight;
}
controllerState.transform.TranslateInPlace(headPos);
flags |= device::Position;
} else {
controllerState.transform = elbow->GetTransform(controllerState.hand, head, controllerState.transform);
}
controller->SetCapabilityFlags(controllerState.index, flags);
controller->SetTransform(controllerState.index, controllerState.transform);
controllerState.inputState.Header.ControllerType = ovrControllerType_TrackedRemote;
vrapi_GetCurrentInputState(ovr, controllerState.deviceId, &controllerState.inputState.Header);
reorientCount = controllerState.inputState.RecenterCount;
const int32_t kNumAxes = 2;
bool triggerPressed = false, triggerTouched = false;
bool trackpadPressed = false, trackpadTouched = false;
float axes[kNumAxes];
float trackpadX = 0.0f, trackpadY = 0.0f;
if (controllerState.Is6DOF()) {
triggerPressed = (controllerState.inputState.Buttons & ovrButton_Trigger) != 0;
triggerTouched = (controllerState.inputState.Touches & ovrTouch_IndexTrigger) != 0;
trackpadPressed = (controllerState.inputState.Buttons & ovrButton_Joystick) != 0;
trackpadTouched = (controllerState.inputState.Touches & ovrTouch_Joystick) != 0;
trackpadX = controllerState.inputState.Joystick.x;
trackpadY = controllerState.inputState.Joystick.y;
axes[0] = trackpadX;
axes[1] = -trackpadY; // We did y axis intentionally inverted in FF desktop as well.
controller->SetScrolledDelta(controllerState.index, -trackpadX, trackpadY);
const bool gripPressed = (controllerState.inputState.Buttons & ovrButton_GripTrigger) != 0;
controller->SetButtonState(controllerState.index, ControllerDelegate::BUTTON_OTHERS, 2, gripPressed, gripPressed,
controllerState.inputState.GripTrigger);
if (controllerState.hand == ElbowModel::HandEnum::Left) {
const bool xPressed = (controllerState.inputState.Buttons & ovrButton_X) != 0;
const bool xTouched = (controllerState.inputState.Touches & ovrTouch_X) != 0;
const bool yPressed = (controllerState.inputState.Buttons & ovrButton_Y) != 0;
const bool yTouched = (controllerState.inputState.Touches & ovrTouch_Y) != 0;
const bool menuPressed = (controllerState.inputState.Buttons & ovrButton_Enter) != 0;
controller->SetButtonState(controllerState.index, ControllerDelegate::BUTTON_X, 3, xPressed, xTouched);
controller->SetButtonState(controllerState.index, ControllerDelegate::BUTTON_Y, 4, yPressed, yTouched);
if (renderMode != device::RenderMode::Immersive) {
controller->SetButtonState(controllerState.index, ControllerDelegate::BUTTON_APP, -1, yPressed, yTouched);
} else {
controller->SetButtonState(controllerState.index, ControllerDelegate::BUTTON_APP, -1, menuPressed, menuPressed);
}
} else if (controllerState.hand == ElbowModel::HandEnum::Right) {
const bool aPressed = (controllerState.inputState.Buttons & ovrButton_A) != 0;
const bool aTouched = (controllerState.inputState.Touches & ovrTouch_A) != 0;
const bool bPressed = (controllerState.inputState.Buttons & ovrButton_B) != 0;
const bool bTouched = (controllerState.inputState.Touches & ovrTouch_B) != 0;
controller->SetButtonState(controllerState.index, ControllerDelegate::BUTTON_A, 3, aPressed, aTouched);
controller->SetButtonState(controllerState.index, ControllerDelegate::BUTTON_Y, 4, bPressed, bTouched);
if (renderMode != device::RenderMode::Immersive) {
controller->SetButtonState(controllerState.index, ControllerDelegate::BUTTON_APP, -1, bPressed, bTouched);
}
} else {
VRB_WARN("Undefined hand type in DeviceDelegateOculusVR.");
}
// This is always false in Oculus Browser.
const bool thumbRest = false;
controller->SetButtonState(controllerState.index, ControllerDelegate::BUTTON_OTHERS, 5, thumbRest, thumbRest);
} else {
triggerPressed = (controllerState.inputState.Buttons & ovrButton_A) != 0;
triggerTouched = triggerPressed;
trackpadPressed = (controllerState.inputState.Buttons & ovrButton_Enter) != 0;
trackpadTouched = (bool)controllerState.inputState.TrackpadStatus;
// For Oculus Go, by setting vrapi_SetPropertyInt(&java, VRAPI_EAT_NATIVE_GAMEPAD_EVENTS, 0);
// The app will receive onBackPressed when the back button is pressed on the controller.
// So there is no need to check for it here. Leaving code commented out for reference
// in the case that the back button stops working again due to Oculus Mobile API change.
// const bool backPressed = (inputState.Buttons & ovrButton_Back) != 0;
// controller->SetButtonState(0, ControllerDelegate::BUTTON_APP, -1, backPressed, backPressed);
trackpadX = controllerState.inputState.TrackpadPosition.x / (float)controllerState.capabilities.TrackpadMaxX;
trackpadY = controllerState.inputState.TrackpadPosition.y / (float)controllerState.capabilities.TrackpadMaxY;
if (trackpadTouched && !trackpadPressed) {
controller->SetTouchPosition(controllerState.index, trackpadX, trackpadY);
} else {
controller->SetTouchPosition(controllerState.index, trackpadX, trackpadY);
controller->EndTouch(controllerState.index);
}
axes[0] = trackpadTouched ? trackpadX * 2.0f - 1.0f : 0.0f;
axes[1] = trackpadTouched ? trackpadY * 2.0f - 1.0f : 0.0f;
}
controller->SetButtonState(controllerState.index, ControllerDelegate::BUTTON_TRIGGER, 1, triggerPressed, triggerTouched,
controllerState.inputState.IndexTrigger);
controller->SetButtonState(controllerState.index, ControllerDelegate::BUTTON_TOUCHPAD, 0, trackpadPressed, trackpadTouched);
controller->SetAxes(controllerState.index, axes, kNumAxes);
if (controller->GetHapticCount(controllerState.index)) {
UpdateHaptics(controllerState);
}
}
}
void UpdateHaptics(ControllerState& controllerState) {
vrb::RenderContextPtr renderContext = context.lock();
if (!renderContext) {
return;
}
if (!controller || !ovr) {
return;
}
uint64_t inputFrameID = 0;
float pulseDuration = 0.0f, pulseIntensity = 0.0f;
controller->GetHapticFeedback(controllerState.index, inputFrameID, pulseDuration, pulseIntensity);
if (inputFrameID > 0 && pulseIntensity > 0.0f && pulseDuration > 0) {
if (controllerState.inputFrameID != inputFrameID) {
// When there is a new input frame id from haptic vibration,
// that means we start a new session for a vibration.
controllerState.inputFrameID = inputFrameID;
controllerState.remainingVibrateTime = pulseDuration;
controllerState.lastHapticUpdateTimeStamp = renderContext->GetTimestamp();
} else {
// We are still running the previous vibration.
// So, it needs to reduce the delta time from the last vibration.
const double timeStamp = renderContext->GetTimestamp();
controllerState.remainingVibrateTime -= (timeStamp - controllerState.lastHapticUpdateTimeStamp);
controllerState.lastHapticUpdateTimeStamp = timeStamp;
}
if (controllerState.remainingVibrateTime > 0.0f && renderMode == device::RenderMode::Immersive) {
if (vrapi_SetHapticVibrationSimple(ovr, controllerState.deviceId, pulseIntensity > 1.0f ? 1.0f : pulseIntensity)
== ovrError_InvalidOperation) {
VRB_ERROR("vrapi_SetHapticVibrationBuffer failed.");
}
} else {
// The remaining time is zero or exiting the immersive mode, stop the vibration.
if (vrapi_SetHapticVibrationSimple(ovr, controllerState.deviceId, 0.0f) == ovrError_InvalidOperation) {
VRB_ERROR("vrapi_SetHapticVibrationBuffer failed.");
}
controllerState.remainingVibrateTime = 0.0f;
}
} else if (controllerState.remainingVibrateTime > 0.0f) {
// While the haptic feedback is terminated from the client side,
// but it still have remaining time, we need to ask for stopping vibration.
if (vrapi_SetHapticVibrationSimple(ovr, controllerState.deviceId, 0.0f) == ovrError_InvalidOperation) {
VRB_ERROR("vrapi_SetHapticVibrationBuffer failed.");
}
controllerState.remainingVibrateTime = 0.0f;
}
}
void HandleQuadLayerBind(const vrb::FBOPtr& aFBO, GLenum aTarget, bool bound) {
if (!bound) {
if (currentFBO && currentFBO == aFBO) {
currentFBO->Unbind();
currentFBO = nullptr;
}
if (previousFBO) {
previousFBO->Bind();
currentFBO = previousFBO;
previousFBO = nullptr;
}
return;
}
if (currentFBO == aFBO) {
// Layer already bound
return;
}
if (currentFBO) {
currentFBO->Unbind();
}
previousFBO = currentFBO;
aFBO->Bind(aTarget);
currentFBO = aFBO;
}
ovrTextureSwapChain* CreateClearColorSwapChain(const float aWidth, const float aHeight) {
ovrTextureSwapChain* result = vrapi_CreateTextureSwapChain(VRAPI_TEXTURE_TYPE_2D, VRAPI_TEXTURE_FORMAT_8888, aWidth, aHeight, 1, false);
vrb::RenderContextPtr ctx = context.lock();
vrb::FBOPtr fbo = vrb::FBO::Create(ctx);
GLuint texture = vrapi_GetTextureSwapChainHandle(result, 0);
VRB_GL_CHECK(glBindTexture(GL_TEXTURE_2D, texture));
VRB_GL_CHECK(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER_EXT));
VRB_GL_CHECK(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER_EXT));
float border[] = { 0.0f, 0.0f, 0.0f, 0.0f };
glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_BORDER_COLOR_EXT, border);
VRB_GL_CHECK(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR));
VRB_GL_CHECK(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR));
vrb::FBO::Attributes attributes;
attributes.depth = false;
attributes.samples = 0;
VRB_GL_CHECK(fbo->SetTextureHandle(texture, aWidth, aHeight, attributes));
if (fbo->IsValid()) {
fbo->Bind();
VRB_GL_CHECK(glClearColor(1.0f, 1.0f, 1.0f, 1.0f));
VRB_GL_CHECK(glClear(GL_COLOR_BUFFER_BIT));
fbo->Unbind();
} else {
VRB_WARN("FAILED to make valid FBO for ClearColorSwapChain");
}
return result;
}
};
DeviceDelegateOculusVRPtr
DeviceDelegateOculusVR::Create(vrb::RenderContextPtr& aContext, android_app *aApp) {
DeviceDelegateOculusVRPtr result = std::make_shared<vrb::ConcreteClass<DeviceDelegateOculusVR, DeviceDelegateOculusVR::State> >();
result->m.context = aContext;
result->m.app = aApp;
result->m.Initialize();
return result;
}
device::DeviceType
DeviceDelegateOculusVR::GetDeviceType() {
return m.deviceType;
}
void
DeviceDelegateOculusVR::SetRenderMode(const device::RenderMode aMode) {
if (aMode == m.renderMode) {
return;
}
m.renderMode = aMode;
m.SetRenderSize(aMode);
vrb::RenderContextPtr render = m.context.lock();
for (int i = 0; i < VRAPI_EYE_COUNT; ++i) {
m.eyeSwapChains[i]->Init(render, m.renderMode, m.renderWidth, m.renderHeight);
}
m.UpdateTrackingMode();
m.UpdateDisplayRefreshRate();
m.UpdateClockLevels();
// Reset reorient when exiting or entering immersive
m.reorientMatrix = vrb::Matrix::Identity();
}
device::RenderMode
DeviceDelegateOculusVR::GetRenderMode() {
return m.renderMode;
}
void
DeviceDelegateOculusVR::RegisterImmersiveDisplay(ImmersiveDisplayPtr aDisplay) {
m.immersiveDisplay = std::move(aDisplay);
if (!m.immersiveDisplay) {
return;
}
if (m.IsOculusQuest()) {
m.immersiveDisplay->SetDeviceName("Oculus Quest");
} else {
m.immersiveDisplay->SetDeviceName("Oculus Go");
}
uint32_t width, height;
m.GetImmersiveRenderSize(width, height);
m.immersiveDisplay->SetEyeResolution(width, height);
m.immersiveDisplay->SetSittingToStandingTransform(vrb::Matrix::Translation(kAverageOculusHeight));
m.immersiveDisplay->CompleteEnumeration();
m.UpdatePerspective();
}
void
DeviceDelegateOculusVR::SetImmersiveSize(const uint32_t aEyeWidth, const uint32_t aEyeHeight) {
uint32_t recommendedWidth, recommendedHeight;
m.GetImmersiveRenderSize(recommendedWidth, recommendedHeight);
uint32_t targetWidth = m.renderWidth;
uint32_t targetHeight = m.renderHeight;
DeviceUtils::GetTargetImmersiveSize(aEyeWidth, aEyeHeight, recommendedWidth, recommendedHeight, targetWidth, targetHeight);
if (targetWidth != m.renderWidth || targetHeight != m.renderHeight) {
m.renderWidth = targetWidth;
m.renderHeight = targetHeight;
vrb::RenderContextPtr render = m.context.lock();
for (int i = 0; i < VRAPI_EYE_COUNT; ++i) {
m.eyeSwapChains[i]->Init(render, m.renderMode, m.renderWidth, m.renderHeight);
}
VRB_LOG("Resize immersive mode swapChain: %dx%d", targetWidth, targetHeight);
}
}
vrb::CameraPtr
DeviceDelegateOculusVR::GetCamera(const device::Eye aWhich) {
const int32_t index = device::EyeIndex(aWhich);
if (index < 0) { return nullptr; }
return m.cameras[index];
}
const vrb::Matrix&
DeviceDelegateOculusVR::GetHeadTransform() const {
return m.cameras[0]->GetHeadTransform();
}
const vrb::Matrix&
DeviceDelegateOculusVR::GetReorientTransform() const {
return m.reorientMatrix;
}
void
DeviceDelegateOculusVR::SetReorientTransform(const vrb::Matrix& aMatrix) {
m.reorientMatrix = aMatrix;
}
void
DeviceDelegateOculusVR::SetClearColor(const vrb::Color& aColor) {
m.clearColor = aColor;
}
void
DeviceDelegateOculusVR::SetClipPlanes(const float aNear, const float aFar) {
m.near = aNear;
m.far = aFar;
m.UpdatePerspective();
}
void
DeviceDelegateOculusVR::SetControllerDelegate(ControllerDelegatePtr& aController) {
m.controller = aController;
}
void
DeviceDelegateOculusVR::ReleaseControllerDelegate() {
m.controller = nullptr;
}
int32_t
DeviceDelegateOculusVR::GetControllerModelCount() const {
if (m.IsOculusQuest()) {
return 2;
} else {
return 1;
}
}
const std::string
DeviceDelegateOculusVR::GetControllerModelName(const int32_t aModelIndex) const {
static std::string name = "";
if (m.IsOculusQuest()) {
switch (aModelIndex) {
case 0:
name = "vr_controller_oculusquest_left.obj";
break;
case 1:
name = "vr_controller_oculusquest_right.obj";
break;
default:
VRB_WARN("GetControllerModelName() failed.");
name = "";
break;
}
} else {
name = "vr_controller_oculusgo.obj";
}
return name;
}
void
DeviceDelegateOculusVR::SetCPULevel(const device::CPULevel aLevel) {
m.minCPULevel = aLevel;
m.UpdateClockLevels();
};
void
DeviceDelegateOculusVR::ProcessEvents() {
if (m.applicationEntitled) {
return;
}
ovrMessageHandle message;
while ((message = ovr_PopMessage()) != nullptr) {
switch (ovr_Message_GetType(message)) {
case ovrMessage_PlatformInitializeAndroidAsynchronous: {
ovrPlatformInitializeHandle handle = ovr_Message_GetPlatformInitialize(message);
ovrPlatformInitializeResult result = ovr_PlatformInitialize_GetResult(handle);
if (result == ovrPlatformInitialize_Success) {
VRB_DEBUG("OVR Platform Initialized.");
} else {
VRB_ERROR("OVR Platform Initialize failed: %s", ovrPlatformInitializeResult_ToString(result));
#if STORE_BUILD == 1
VRBrowser::HaltActivity(0);
#endif
}
}
break;
case ovrMessage_Entitlement_GetIsViewerEntitled:
if (ovr_Message_IsError(message)) {
VRB_LOG("User is not entitled");
#if STORE_BUILD == 1
VRBrowser::HaltActivity(0);
#else
// No need to process events anymore.
m.applicationEntitled = true;
#endif
}
else {
VRB_LOG("User is entitled");
m.applicationEntitled = true;
}
break;
default:
break;
}
}
}
void
DeviceDelegateOculusVR::StartFrame() {
if (!m.ovr) {
VRB_LOG("StartFrame called while not in VR mode");
return;
}
m.frameIndex++;
m.predictedDisplayTime = vrapi_GetPredictedDisplayTime(m.ovr, m.frameIndex);
m.predictedTracking = vrapi_GetPredictedTracking2(m.ovr, m.predictedDisplayTime);
float ipd = vrapi_GetInterpupillaryDistance(&m.predictedTracking);
m.cameras[VRAPI_EYE_LEFT]->SetEyeTransform(vrb::Matrix::Translation(vrb::Vector(-ipd * 0.5f, 0.f, 0.f)));
m.cameras[VRAPI_EYE_RIGHT]->SetEyeTransform(vrb::Matrix::Translation(vrb::Vector(ipd * 0.5f, 0.f, 0.f)));
if (!(m.predictedTracking.Status & VRAPI_TRACKING_STATUS_HMD_CONNECTED)) {
VRB_LOG("HMD not connected");
return;
}
ovrMatrix4f matrix = vrapi_GetTransformFromPose(&m.predictedTracking.HeadPose.Pose);
vrb::Matrix head = vrb::Matrix::FromRowMajor(matrix.M[0]);
if (m.renderMode == device::RenderMode::StandAlone) {
head.TranslateInPlace(kAverageHeight);
}
m.cameras[VRAPI_EYE_LEFT]->SetHeadTransform(head);
m.cameras[VRAPI_EYE_RIGHT]->SetHeadTransform(head);
if (m.immersiveDisplay) {
m.immersiveDisplay->SetEyeOffset(device::Eye::Left, -ipd * 0.5f, 0.f, 0.f);
m.immersiveDisplay->SetEyeOffset(device::Eye::Right, ipd * 0.5f, 0.f, 0.f);
device::CapabilityFlags caps = device::Orientation | device::Present | device::StageParameters |
device::InlineSession | device::ImmersiveVRSession;
if (m.predictedTracking.Status & VRAPI_TRACKING_STATUS_POSITION_TRACKED) {
caps |= device::Position;
} else {
caps |= device::PositionEmulated;
}
m.immersiveDisplay->SetCapabilityFlags(caps);
}
int lastReorientCount = m.reorientCount;
m.UpdateControllers(head);
bool reoriented = lastReorientCount != m.reorientCount && lastReorientCount > 0 && m.reorientCount > 0;
if (reoriented && m.renderMode == device::RenderMode::StandAlone) {
m.reorientMatrix = DeviceUtils::CalculateReorientationMatrix(head, kAverageHeight);
}
VRB_GL_CHECK(glClearColor(m.clearColor.Red(), m.clearColor.Green(), m.clearColor.Blue(), m.clearColor.Alpha()));
}
void
DeviceDelegateOculusVR::BindEye(const device::Eye aWhich) {
if (!m.ovr) {
VRB_LOG("BindEye called while not in VR mode");
return;
}
int32_t index = device::EyeIndex(aWhich);
if (index < 0) {
VRB_LOG("No eye found");
return;
}
if (m.currentFBO) {
m.currentFBO->Unbind();
}
const auto &swapChain = m.eyeSwapChains[index];
int swapChainIndex = m.frameIndex % swapChain->swapChainLength;
m.currentFBO = swapChain->fbos[swapChainIndex];
if (m.currentFBO) {
m.currentFBO->Bind();
VRB_GL_CHECK(glViewport(0, 0, m.renderWidth, m.renderHeight));
VRB_GL_CHECK(glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT));
} else {
VRB_LOG("No Swap chain FBO found");
}
for (const OculusLayerPtr& layer: m.uiLayers) {
layer->SetCurrentEye(aWhich);
}
}
void
DeviceDelegateOculusVR::EndFrame(const bool aDiscard) {
if (!m.ovr) {
VRB_LOG("EndFrame called while not in VR mode");
return;
}
if (m.currentFBO) {
m.currentFBO->Unbind();
m.currentFBO.reset();
}
if (aDiscard) {
// Reuse the last frame when a frame is discarded.
// The last frame is timewarped by the VR compositor.
if (m.discardCount == 0) {
m.discardPredictedTracking = m.predictedTracking;
m.discardedFrameIndex = m.frameIndex;
}
m.discardCount++;
m.frameIndex = m.discardedFrameIndex;
m.predictedTracking = m.discardPredictedTracking;
} else {
m.discardCount = 0;
}
uint32_t layerCount = 0;
const ovrLayerHeader2* layers[ovrMaxLayerCount] = {};
if (m.cubeLayer && m.cubeLayer->IsLoaded() && m.cubeLayer->IsDrawRequested()) {
m.cubeLayer->Update(m.predictedTracking, m.clearColorSwapChain);
layers[layerCount++] = m.cubeLayer->Header();
m.cubeLayer->ClearRequestDraw();
}
if (m.equirectLayer && m.equirectLayer->IsDrawRequested()) {
m.equirectLayer->Update(m.predictedTracking, m.clearColorSwapChain);
layers[layerCount++] = m.equirectLayer->Header();
m.equirectLayer->ClearRequestDraw();
}
// Sort quad layers by draw priority
std::sort(m.uiLayers.begin(), m.uiLayers.end(), [](const OculusLayerPtr & a, OculusLayerPtr & b) -> bool {
return a->GetLayer()->ShouldDrawBefore(*b->GetLayer());
});
// Draw back layers
for (const OculusLayerPtr& layer: m.uiLayers) {
if (!layer->GetDrawInFront() && layer->IsDrawRequested() && (layerCount < ovrMaxLayerCount - 1)) {
layer->Update(m.predictedTracking, m.clearColorSwapChain);
layers[layerCount++] = layer->Header();
layer->ClearRequestDraw();
}
}
// Add main eye buffer layer
const float fovX = vrapi_GetSystemPropertyFloat(&m.java, VRAPI_SYS_PROP_SUGGESTED_EYE_FOV_DEGREES_X);
const float fovY = vrapi_GetSystemPropertyFloat(&m.java, VRAPI_SYS_PROP_SUGGESTED_EYE_FOV_DEGREES_Y);
const ovrMatrix4f projectionMatrix = ovrMatrix4f_CreateProjectionFov(fovX, fovY, 0.0f, 0.0f, VRAPI_ZNEAR, 0.0f);
ovrLayerProjection2 projection = vrapi_DefaultLayerProjection2();
projection.HeadPose = m.predictedTracking.HeadPose;
projection.Header.SrcBlend = VRAPI_FRAME_LAYER_BLEND_ONE;
projection.Header.DstBlend = VRAPI_FRAME_LAYER_BLEND_ONE_MINUS_SRC_ALPHA;
for (int i = 0; i < VRAPI_FRAME_LAYER_EYE_MAX; ++i) {
const auto &eyeSwapChain = m.eyeSwapChains[i];
const int swapChainIndex = m.frameIndex % eyeSwapChain->swapChainLength;
// Set up OVR layer textures
projection.Textures[i].ColorSwapChain = eyeSwapChain->ovrSwapChain;
projection.Textures[i].SwapChainIndex = swapChainIndex;
projection.Textures[i].TexCoordsFromTanAngles = ovrMatrix4f_TanAngleMatrixFromProjection(&projectionMatrix);
}
layers[layerCount++] = &projection.Header;
// Draw front layers
for (const OculusLayerPtr& layer: m.uiLayers) {
if (layer->GetDrawInFront() && layer->IsDrawRequested() && layerCount < ovrMaxLayerCount) {
layer->Update(m.predictedTracking, m.clearColorSwapChain);
layers[layerCount++] = layer->Header();
layer->ClearRequestDraw();
}
}
// Submit all layers to TimeWarp
ovrSubmitFrameDescription2 frameDesc = {};
frameDesc.Flags = 0;
if (m.renderMode == device::RenderMode::Immersive) {
frameDesc.Flags |= VRAPI_FRAME_FLAG_INHIBIT_VOLUME_LAYER;
}
frameDesc.SwapInterval = 1;
frameDesc.FrameIndex = m.frameIndex;