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hello XR without cubes
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// helloXR with cubes and gray bg removed (just lines 951, 971 & 903 commented out) | |
// replace openxr_program.cpp in OpenXR-SDK-Source\src\tests\hello_xr with this file, then build | |
// Copyright (c) 2017-2020 The Khronos Group Inc. | |
// | |
// SPDX-License-Identifier: Apache-2.0 | |
#include "pch.h" | |
#include "common.h" | |
#include "options.h" | |
#include "platformdata.h" | |
#include "platformplugin.h" | |
#include "graphicsplugin.h" | |
#include "openxr_program.h" | |
#include <common/xr_linear.h> | |
#include <array> | |
#include <cmath> | |
namespace { | |
#if !defined(XR_USE_PLATFORM_WIN32) | |
#define strcpy_s(dest, source) strncpy((dest), (source), sizeof(dest)) | |
#endif | |
namespace Side { | |
const int LEFT = 0; | |
const int RIGHT = 1; | |
const int COUNT = 2; | |
} // namespace Side | |
inline std::string GetXrVersionString(XrVersion ver) { | |
return Fmt("%d.%d.%d", XR_VERSION_MAJOR(ver), XR_VERSION_MINOR(ver), XR_VERSION_PATCH(ver)); | |
} | |
inline XrFormFactor GetXrFormFactor(const std::string& formFactorStr) { | |
if (EqualsIgnoreCase(formFactorStr, "Hmd")) { | |
return XR_FORM_FACTOR_HEAD_MOUNTED_DISPLAY; | |
} | |
if (EqualsIgnoreCase(formFactorStr, "Handheld")) { | |
return XR_FORM_FACTOR_HANDHELD_DISPLAY; | |
} | |
throw std::invalid_argument(Fmt("Unknown form factor '%s'", formFactorStr.c_str())); | |
} | |
inline XrViewConfigurationType GetXrViewConfigurationType(const std::string& viewConfigurationStr) { | |
if (EqualsIgnoreCase(viewConfigurationStr, "Mono")) { | |
return XR_VIEW_CONFIGURATION_TYPE_PRIMARY_MONO; | |
} | |
if (EqualsIgnoreCase(viewConfigurationStr, "Stereo")) { | |
return XR_VIEW_CONFIGURATION_TYPE_PRIMARY_STEREO; | |
} | |
throw std::invalid_argument(Fmt("Unknown view configuration '%s'", viewConfigurationStr.c_str())); | |
} | |
inline XrEnvironmentBlendMode GetXrEnvironmentBlendMode(const std::string& environmentBlendModeStr) { | |
if (EqualsIgnoreCase(environmentBlendModeStr, "Opaque")) { | |
return XR_ENVIRONMENT_BLEND_MODE_OPAQUE; | |
} | |
if (EqualsIgnoreCase(environmentBlendModeStr, "Additive")) { | |
return XR_ENVIRONMENT_BLEND_MODE_ADDITIVE; | |
} | |
if (EqualsIgnoreCase(environmentBlendModeStr, "AlphaBlend")) { | |
return XR_ENVIRONMENT_BLEND_MODE_ALPHA_BLEND; | |
} | |
throw std::invalid_argument(Fmt("Unknown environment blend mode '%s'", environmentBlendModeStr.c_str())); | |
} | |
namespace Math { | |
namespace Pose { | |
XrPosef Identity() { | |
XrPosef t{}; | |
t.orientation.w = 1; | |
return t; | |
} | |
XrPosef Translation(const XrVector3f& translation) { | |
XrPosef t = Identity(); | |
t.position = translation; | |
return t; | |
} | |
XrPosef RotateCCWAboutYAxis(float radians, XrVector3f translation) { | |
XrPosef t = Identity(); | |
t.orientation.x = 0.f; | |
t.orientation.y = std::sin(radians * 0.5f); | |
t.orientation.z = 0.f; | |
t.orientation.w = std::cos(radians * 0.5f); | |
t.position = translation; | |
return t; | |
} | |
} // namespace Pose | |
} // namespace Math | |
inline XrReferenceSpaceCreateInfo GetXrReferenceSpaceCreateInfo(const std::string& referenceSpaceTypeStr) { | |
XrReferenceSpaceCreateInfo referenceSpaceCreateInfo{XR_TYPE_REFERENCE_SPACE_CREATE_INFO}; | |
referenceSpaceCreateInfo.poseInReferenceSpace = Math::Pose::Identity(); | |
if (EqualsIgnoreCase(referenceSpaceTypeStr, "View")) { | |
referenceSpaceCreateInfo.referenceSpaceType = XR_REFERENCE_SPACE_TYPE_VIEW; | |
} else if (EqualsIgnoreCase(referenceSpaceTypeStr, "ViewFront")) { | |
// Render head-locked 2m in front of device. | |
referenceSpaceCreateInfo.poseInReferenceSpace = Math::Pose::Translation({0.f, 0.f, -2.f}), | |
referenceSpaceCreateInfo.referenceSpaceType = XR_REFERENCE_SPACE_TYPE_VIEW; | |
} else if (EqualsIgnoreCase(referenceSpaceTypeStr, "Local")) { | |
referenceSpaceCreateInfo.referenceSpaceType = XR_REFERENCE_SPACE_TYPE_LOCAL; | |
} else if (EqualsIgnoreCase(referenceSpaceTypeStr, "Stage")) { | |
referenceSpaceCreateInfo.referenceSpaceType = XR_REFERENCE_SPACE_TYPE_STAGE; | |
} else if (EqualsIgnoreCase(referenceSpaceTypeStr, "StageLeft")) { | |
referenceSpaceCreateInfo.poseInReferenceSpace = Math::Pose::RotateCCWAboutYAxis(0.f, {-2.f, 0.f, -2.f}); | |
referenceSpaceCreateInfo.referenceSpaceType = XR_REFERENCE_SPACE_TYPE_STAGE; | |
} else if (EqualsIgnoreCase(referenceSpaceTypeStr, "StageRight")) { | |
referenceSpaceCreateInfo.poseInReferenceSpace = Math::Pose::RotateCCWAboutYAxis(0.f, {2.f, 0.f, -2.f}); | |
referenceSpaceCreateInfo.referenceSpaceType = XR_REFERENCE_SPACE_TYPE_STAGE; | |
} else if (EqualsIgnoreCase(referenceSpaceTypeStr, "StageLeftRotated")) { | |
referenceSpaceCreateInfo.poseInReferenceSpace = Math::Pose::RotateCCWAboutYAxis(3.14f / 3.f, {-2.f, 0.5f, -2.f}); | |
referenceSpaceCreateInfo.referenceSpaceType = XR_REFERENCE_SPACE_TYPE_STAGE; | |
} else if (EqualsIgnoreCase(referenceSpaceTypeStr, "StageRightRotated")) { | |
referenceSpaceCreateInfo.poseInReferenceSpace = Math::Pose::RotateCCWAboutYAxis(-3.14f / 3.f, {2.f, 0.5f, -2.f}); | |
referenceSpaceCreateInfo.referenceSpaceType = XR_REFERENCE_SPACE_TYPE_STAGE; | |
} else { | |
throw std::invalid_argument(Fmt("Unknown reference space type '%s'", referenceSpaceTypeStr.c_str())); | |
} | |
return referenceSpaceCreateInfo; | |
} | |
struct OpenXrProgram : IOpenXrProgram { | |
OpenXrProgram(const std::shared_ptr<Options>& options, const std::shared_ptr<IPlatformPlugin>& platformPlugin, | |
const std::shared_ptr<IGraphicsPlugin>& graphicsPlugin) | |
: m_options(options), m_platformPlugin(platformPlugin), m_graphicsPlugin(graphicsPlugin) {} | |
~OpenXrProgram() override { | |
if (m_input.actionSet != XR_NULL_HANDLE) { | |
for (auto hand : {Side::LEFT, Side::RIGHT}) { | |
xrDestroySpace(m_input.handSpace[hand]); | |
} | |
xrDestroyActionSet(m_input.actionSet); | |
} | |
for (Swapchain swapchain : m_swapchains) { | |
xrDestroySwapchain(swapchain.handle); | |
} | |
for (XrSpace visualizedSpace : m_visualizedSpaces) { | |
xrDestroySpace(visualizedSpace); | |
} | |
if (m_appSpace != XR_NULL_HANDLE) { | |
xrDestroySpace(m_appSpace); | |
} | |
if (m_session != XR_NULL_HANDLE) { | |
xrDestroySession(m_session); | |
} | |
if (m_instance != XR_NULL_HANDLE) { | |
xrDestroyInstance(m_instance); | |
} | |
} | |
static void LogLayersAndExtensions() { | |
// Write out extension properties for a given layer. | |
const auto logExtensions = [](const char* layerName, int indent = 0) { | |
uint32_t instanceExtensionCount; | |
CHECK_XRCMD(xrEnumerateInstanceExtensionProperties(layerName, 0, &instanceExtensionCount, nullptr)); | |
std::vector<XrExtensionProperties> extensions(instanceExtensionCount); | |
for (XrExtensionProperties& extension : extensions) { | |
extension.type = XR_TYPE_EXTENSION_PROPERTIES; | |
} | |
CHECK_XRCMD(xrEnumerateInstanceExtensionProperties(layerName, (uint32_t)extensions.size(), &instanceExtensionCount, | |
extensions.data())); | |
const std::string indentStr(indent, ' '); | |
Log::Write(Log::Level::Verbose, Fmt("%sAvailable Extensions: (%d)", indentStr.c_str(), instanceExtensionCount)); | |
for (const XrExtensionProperties& extension : extensions) { | |
Log::Write(Log::Level::Verbose, Fmt("%s Name=%s SpecVersion=%d", indentStr.c_str(), extension.extensionName, | |
extension.extensionVersion)); | |
} | |
}; | |
// Log non-layer extensions (layerName==nullptr). | |
logExtensions(nullptr); | |
// Log layers and any of their extensions. | |
{ | |
uint32_t layerCount; | |
CHECK_XRCMD(xrEnumerateApiLayerProperties(0, &layerCount, nullptr)); | |
std::vector<XrApiLayerProperties> layers(layerCount); | |
for (XrApiLayerProperties& layer : layers) { | |
layer.type = XR_TYPE_API_LAYER_PROPERTIES; | |
} | |
CHECK_XRCMD(xrEnumerateApiLayerProperties((uint32_t)layers.size(), &layerCount, layers.data())); | |
Log::Write(Log::Level::Info, Fmt("Available Layers: (%d)", layerCount)); | |
for (const XrApiLayerProperties& layer : layers) { | |
Log::Write(Log::Level::Verbose, | |
Fmt(" Name=%s SpecVersion=%s LayerVersion=%d Description=%s", layer.layerName, | |
GetXrVersionString(layer.specVersion).c_str(), layer.layerVersion, layer.description)); | |
logExtensions(layer.layerName, 4); | |
} | |
} | |
} | |
void LogInstanceInfo() { | |
CHECK(m_instance != XR_NULL_HANDLE); | |
XrInstanceProperties instanceProperties{XR_TYPE_INSTANCE_PROPERTIES}; | |
CHECK_XRCMD(xrGetInstanceProperties(m_instance, &instanceProperties)); | |
Log::Write(Log::Level::Info, Fmt("Instance RuntimeName=%s RuntimeVersion=%s", instanceProperties.runtimeName, | |
GetXrVersionString(instanceProperties.runtimeVersion).c_str())); | |
} | |
void CreateInstanceInternal() { | |
CHECK(m_instance == XR_NULL_HANDLE); | |
// Create union of extensions required by platform and graphics plugins. | |
std::vector<const char*> extensions; | |
// Transform platform and graphics extension std::strings to C strings. | |
const std::vector<std::string> platformExtensions = m_platformPlugin->GetInstanceExtensions(); | |
std::transform(platformExtensions.begin(), platformExtensions.end(), std::back_inserter(extensions), | |
[](const std::string& ext) { return ext.c_str(); }); | |
const std::vector<std::string> graphicsExtensions = m_graphicsPlugin->GetInstanceExtensions(); | |
std::transform(graphicsExtensions.begin(), graphicsExtensions.end(), std::back_inserter(extensions), | |
[](const std::string& ext) { return ext.c_str(); }); | |
XrInstanceCreateInfo createInfo{XR_TYPE_INSTANCE_CREATE_INFO}; | |
createInfo.next = m_platformPlugin->GetInstanceCreateExtension(); | |
createInfo.enabledExtensionCount = (uint32_t)extensions.size(); | |
createInfo.enabledExtensionNames = extensions.data(); | |
strcpy(createInfo.applicationInfo.applicationName, "HelloXR"); | |
createInfo.applicationInfo.apiVersion = XR_CURRENT_API_VERSION; | |
CHECK_XRCMD(xrCreateInstance(&createInfo, &m_instance)); | |
} | |
void CreateInstance() override { | |
LogLayersAndExtensions(); | |
CreateInstanceInternal(); | |
LogInstanceInfo(); | |
} | |
void LogViewConfigurations() { | |
CHECK(m_instance != XR_NULL_HANDLE); | |
CHECK(m_systemId != XR_NULL_SYSTEM_ID); | |
uint32_t viewConfigTypeCount; | |
CHECK_XRCMD(xrEnumerateViewConfigurations(m_instance, m_systemId, 0, &viewConfigTypeCount, nullptr)); | |
std::vector<XrViewConfigurationType> viewConfigTypes(viewConfigTypeCount); | |
CHECK_XRCMD(xrEnumerateViewConfigurations(m_instance, m_systemId, viewConfigTypeCount, &viewConfigTypeCount, | |
viewConfigTypes.data())); | |
CHECK((uint32_t)viewConfigTypes.size() == viewConfigTypeCount); | |
Log::Write(Log::Level::Info, Fmt("Available View Configuration Types: (%d)", viewConfigTypeCount)); | |
for (XrViewConfigurationType viewConfigType : viewConfigTypes) { | |
Log::Write(Log::Level::Verbose, Fmt(" View Configuration Type: %s %s", to_string(viewConfigType), | |
viewConfigType == m_viewConfigType ? "(Selected)" : "")); | |
XrViewConfigurationProperties viewConfigProperties{XR_TYPE_VIEW_CONFIGURATION_PROPERTIES}; | |
CHECK_XRCMD(xrGetViewConfigurationProperties(m_instance, m_systemId, viewConfigType, &viewConfigProperties)); | |
Log::Write(Log::Level::Verbose, | |
Fmt(" View configuration FovMutable=%s", viewConfigProperties.fovMutable == XR_TRUE ? "True" : "False")); | |
uint32_t viewCount; | |
CHECK_XRCMD(xrEnumerateViewConfigurationViews(m_instance, m_systemId, viewConfigType, 0, &viewCount, nullptr)); | |
if (viewCount > 0) { | |
std::vector<XrViewConfigurationView> views(viewCount, {XR_TYPE_VIEW_CONFIGURATION_VIEW}); | |
CHECK_XRCMD( | |
xrEnumerateViewConfigurationViews(m_instance, m_systemId, viewConfigType, viewCount, &viewCount, views.data())); | |
for (uint32_t i = 0; i < views.size(); i++) { | |
const XrViewConfigurationView& view = views[i]; | |
Log::Write(Log::Level::Verbose, Fmt(" View [%d]: Recommended Width=%d Height=%d SampleCount=%d", i, | |
view.recommendedImageRectWidth, view.recommendedImageRectHeight, | |
view.recommendedSwapchainSampleCount)); | |
Log::Write(Log::Level::Verbose, | |
Fmt(" View [%d]: Maximum Width=%d Height=%d SampleCount=%d", i, view.maxImageRectWidth, | |
view.maxImageRectHeight, view.maxSwapchainSampleCount)); | |
} | |
} else { | |
Log::Write(Log::Level::Error, Fmt("Empty view configuration type")); | |
} | |
LogEnvironmentBlendMode(viewConfigType); | |
} | |
} | |
void LogEnvironmentBlendMode(XrViewConfigurationType type) { | |
CHECK(m_instance != XR_NULL_HANDLE); | |
CHECK(m_systemId != 0); | |
uint32_t count; | |
CHECK_XRCMD(xrEnumerateEnvironmentBlendModes(m_instance, m_systemId, type, 0, &count, nullptr)); | |
CHECK(count > 0); | |
Log::Write(Log::Level::Info, Fmt("Available Environment Blend Mode count : (%d)", count)); | |
std::vector<XrEnvironmentBlendMode> blendModes(count); | |
CHECK_XRCMD(xrEnumerateEnvironmentBlendModes(m_instance, m_systemId, type, count, &count, blendModes.data())); | |
bool blendModeFound = false; | |
for (XrEnvironmentBlendMode mode : blendModes) { | |
const bool blendModeMatch = (mode == m_environmentBlendMode); | |
Log::Write(Log::Level::Info, | |
Fmt("Environment Blend Mode (%s) : %s", to_string(mode), blendModeMatch ? "(Selected)" : "")); | |
blendModeFound |= blendModeMatch; | |
} | |
CHECK(blendModeFound); | |
} | |
void InitializeSystem() override { | |
CHECK(m_instance != XR_NULL_HANDLE); | |
CHECK(m_systemId == XR_NULL_SYSTEM_ID); | |
m_formFactor = GetXrFormFactor(m_options->FormFactor); | |
m_viewConfigType = GetXrViewConfigurationType(m_options->ViewConfiguration); | |
m_environmentBlendMode = GetXrEnvironmentBlendMode(m_options->EnvironmentBlendMode); | |
XrSystemGetInfo systemInfo{XR_TYPE_SYSTEM_GET_INFO}; | |
systemInfo.formFactor = m_formFactor; | |
CHECK_XRCMD(xrGetSystem(m_instance, &systemInfo, &m_systemId)); | |
Log::Write(Log::Level::Verbose, Fmt("Using system %d for form factor %s", m_systemId, to_string(m_formFactor))); | |
CHECK(m_instance != XR_NULL_HANDLE); | |
CHECK(m_systemId != XR_NULL_SYSTEM_ID); | |
LogViewConfigurations(); | |
// The graphics API can initialize the graphics device now that the systemId and instance | |
// handle are available. | |
m_graphicsPlugin->InitializeDevice(m_instance, m_systemId); | |
} | |
void LogReferenceSpaces() { | |
CHECK(m_session != XR_NULL_HANDLE); | |
uint32_t spaceCount; | |
CHECK_XRCMD(xrEnumerateReferenceSpaces(m_session, 0, &spaceCount, nullptr)); | |
std::vector<XrReferenceSpaceType> spaces(spaceCount); | |
CHECK_XRCMD(xrEnumerateReferenceSpaces(m_session, spaceCount, &spaceCount, spaces.data())); | |
Log::Write(Log::Level::Info, Fmt("Available reference spaces: %d", spaceCount)); | |
for (XrReferenceSpaceType space : spaces) { | |
Log::Write(Log::Level::Verbose, Fmt(" Name: %s", to_string(space))); | |
} | |
} | |
struct InputState { | |
XrActionSet actionSet{XR_NULL_HANDLE}; | |
XrAction grabAction{XR_NULL_HANDLE}; | |
XrAction poseAction{XR_NULL_HANDLE}; | |
XrAction vibrateAction{XR_NULL_HANDLE}; | |
XrAction quitAction{XR_NULL_HANDLE}; | |
std::array<XrPath, Side::COUNT> handSubactionPath; | |
std::array<XrSpace, Side::COUNT> handSpace; | |
std::array<float, Side::COUNT> handScale = {{1.0f, 1.0f}}; | |
std::array<XrBool32, Side::COUNT> handActive; | |
}; | |
void InitializeActions() { | |
// Create an action set. | |
{ | |
XrActionSetCreateInfo actionSetInfo{XR_TYPE_ACTION_SET_CREATE_INFO}; | |
strcpy_s(actionSetInfo.actionSetName, "gameplay"); | |
strcpy_s(actionSetInfo.localizedActionSetName, "Gameplay"); | |
actionSetInfo.priority = 0; | |
CHECK_XRCMD(xrCreateActionSet(m_instance, &actionSetInfo, &m_input.actionSet)); | |
} | |
// Get the XrPath for the left and right hands - we will use them as subaction paths. | |
CHECK_XRCMD(xrStringToPath(m_instance, "/user/hand/left", &m_input.handSubactionPath[Side::LEFT])); | |
CHECK_XRCMD(xrStringToPath(m_instance, "/user/hand/right", &m_input.handSubactionPath[Side::RIGHT])); | |
// Create actions. | |
{ | |
// Create an input action for grabbing objects with the left and right hands. | |
XrActionCreateInfo actionInfo{XR_TYPE_ACTION_CREATE_INFO}; | |
actionInfo.actionType = XR_ACTION_TYPE_FLOAT_INPUT; | |
strcpy_s(actionInfo.actionName, "grab_object"); | |
strcpy_s(actionInfo.localizedActionName, "Grab Object"); | |
actionInfo.countSubactionPaths = uint32_t(m_input.handSubactionPath.size()); | |
actionInfo.subactionPaths = m_input.handSubactionPath.data(); | |
CHECK_XRCMD(xrCreateAction(m_input.actionSet, &actionInfo, &m_input.grabAction)); | |
// Create an input action getting the left and right hand poses. | |
actionInfo.actionType = XR_ACTION_TYPE_POSE_INPUT; | |
strcpy_s(actionInfo.actionName, "hand_pose"); | |
strcpy_s(actionInfo.localizedActionName, "Hand Pose"); | |
actionInfo.countSubactionPaths = uint32_t(m_input.handSubactionPath.size()); | |
actionInfo.subactionPaths = m_input.handSubactionPath.data(); | |
CHECK_XRCMD(xrCreateAction(m_input.actionSet, &actionInfo, &m_input.poseAction)); | |
// Create output actions for vibrating the left and right controller. | |
actionInfo.actionType = XR_ACTION_TYPE_VIBRATION_OUTPUT; | |
strcpy_s(actionInfo.actionName, "vibrate_hand"); | |
strcpy_s(actionInfo.localizedActionName, "Vibrate Hand"); | |
actionInfo.countSubactionPaths = uint32_t(m_input.handSubactionPath.size()); | |
actionInfo.subactionPaths = m_input.handSubactionPath.data(); | |
CHECK_XRCMD(xrCreateAction(m_input.actionSet, &actionInfo, &m_input.vibrateAction)); | |
// Create input actions for quitting the session using the left and right controller. | |
// Since it doesn't matter which hand did this, we do not specify subaction paths for it. | |
// We will just suggest bindings for both hands, where possible. | |
actionInfo.actionType = XR_ACTION_TYPE_BOOLEAN_INPUT; | |
strcpy_s(actionInfo.actionName, "quit_session"); | |
strcpy_s(actionInfo.localizedActionName, "Quit Session"); | |
actionInfo.countSubactionPaths = 0; | |
actionInfo.subactionPaths = nullptr; | |
CHECK_XRCMD(xrCreateAction(m_input.actionSet, &actionInfo, &m_input.quitAction)); | |
} | |
std::array<XrPath, Side::COUNT> selectPath; | |
std::array<XrPath, Side::COUNT> squeezeValuePath; | |
std::array<XrPath, Side::COUNT> squeezeForcePath; | |
std::array<XrPath, Side::COUNT> squeezeClickPath; | |
std::array<XrPath, Side::COUNT> posePath; | |
std::array<XrPath, Side::COUNT> hapticPath; | |
std::array<XrPath, Side::COUNT> menuClickPath; | |
std::array<XrPath, Side::COUNT> bClickPath; | |
std::array<XrPath, Side::COUNT> triggerValuePath; | |
CHECK_XRCMD(xrStringToPath(m_instance, "/user/hand/left/input/select/click", &selectPath[Side::LEFT])); | |
CHECK_XRCMD(xrStringToPath(m_instance, "/user/hand/right/input/select/click", &selectPath[Side::RIGHT])); | |
CHECK_XRCMD(xrStringToPath(m_instance, "/user/hand/left/input/squeeze/value", &squeezeValuePath[Side::LEFT])); | |
CHECK_XRCMD(xrStringToPath(m_instance, "/user/hand/right/input/squeeze/value", &squeezeValuePath[Side::RIGHT])); | |
CHECK_XRCMD(xrStringToPath(m_instance, "/user/hand/left/input/squeeze/force", &squeezeForcePath[Side::LEFT])); | |
CHECK_XRCMD(xrStringToPath(m_instance, "/user/hand/right/input/squeeze/force", &squeezeForcePath[Side::RIGHT])); | |
CHECK_XRCMD(xrStringToPath(m_instance, "/user/hand/left/input/squeeze/click", &squeezeClickPath[Side::LEFT])); | |
CHECK_XRCMD(xrStringToPath(m_instance, "/user/hand/right/input/squeeze/click", &squeezeClickPath[Side::RIGHT])); | |
CHECK_XRCMD(xrStringToPath(m_instance, "/user/hand/left/input/grip/pose", &posePath[Side::LEFT])); | |
CHECK_XRCMD(xrStringToPath(m_instance, "/user/hand/right/input/grip/pose", &posePath[Side::RIGHT])); | |
CHECK_XRCMD(xrStringToPath(m_instance, "/user/hand/left/output/haptic", &hapticPath[Side::LEFT])); | |
CHECK_XRCMD(xrStringToPath(m_instance, "/user/hand/right/output/haptic", &hapticPath[Side::RIGHT])); | |
CHECK_XRCMD(xrStringToPath(m_instance, "/user/hand/left/input/menu/click", &menuClickPath[Side::LEFT])); | |
CHECK_XRCMD(xrStringToPath(m_instance, "/user/hand/right/input/menu/click", &menuClickPath[Side::RIGHT])); | |
CHECK_XRCMD(xrStringToPath(m_instance, "/user/hand/left/input/b/click", &bClickPath[Side::LEFT])); | |
CHECK_XRCMD(xrStringToPath(m_instance, "/user/hand/right/input/b/click", &bClickPath[Side::RIGHT])); | |
CHECK_XRCMD(xrStringToPath(m_instance, "/user/hand/left/input/trigger/value", &triggerValuePath[Side::LEFT])); | |
CHECK_XRCMD(xrStringToPath(m_instance, "/user/hand/right/input/trigger/value", &triggerValuePath[Side::RIGHT])); | |
// Suggest bindings for KHR Simple. | |
{ | |
XrPath khrSimpleInteractionProfilePath; | |
CHECK_XRCMD( | |
xrStringToPath(m_instance, "/interaction_profiles/khr/simple_controller", &khrSimpleInteractionProfilePath)); | |
std::vector<XrActionSuggestedBinding> bindings{{// Fall back to a click input for the grab action. | |
{m_input.grabAction, selectPath[Side::LEFT]}, | |
{m_input.grabAction, selectPath[Side::RIGHT]}, | |
{m_input.poseAction, posePath[Side::LEFT]}, | |
{m_input.poseAction, posePath[Side::RIGHT]}, | |
{m_input.quitAction, menuClickPath[Side::LEFT]}, | |
{m_input.quitAction, menuClickPath[Side::RIGHT]}, | |
{m_input.vibrateAction, hapticPath[Side::LEFT]}, | |
{m_input.vibrateAction, hapticPath[Side::RIGHT]}}}; | |
XrInteractionProfileSuggestedBinding suggestedBindings{XR_TYPE_INTERACTION_PROFILE_SUGGESTED_BINDING}; | |
suggestedBindings.interactionProfile = khrSimpleInteractionProfilePath; | |
suggestedBindings.suggestedBindings = bindings.data(); | |
suggestedBindings.countSuggestedBindings = (uint32_t)bindings.size(); | |
CHECK_XRCMD(xrSuggestInteractionProfileBindings(m_instance, &suggestedBindings)); | |
} | |
// Suggest bindings for the Oculus Touch. | |
{ | |
XrPath oculusTouchInteractionProfilePath; | |
CHECK_XRCMD( | |
xrStringToPath(m_instance, "/interaction_profiles/oculus/touch_controller", &oculusTouchInteractionProfilePath)); | |
std::vector<XrActionSuggestedBinding> bindings{{{m_input.grabAction, squeezeValuePath[Side::LEFT]}, | |
{m_input.grabAction, squeezeValuePath[Side::RIGHT]}, | |
{m_input.poseAction, posePath[Side::LEFT]}, | |
{m_input.poseAction, posePath[Side::RIGHT]}, | |
{m_input.quitAction, menuClickPath[Side::LEFT]}, | |
{m_input.vibrateAction, hapticPath[Side::LEFT]}, | |
{m_input.vibrateAction, hapticPath[Side::RIGHT]}}}; | |
XrInteractionProfileSuggestedBinding suggestedBindings{XR_TYPE_INTERACTION_PROFILE_SUGGESTED_BINDING}; | |
suggestedBindings.interactionProfile = oculusTouchInteractionProfilePath; | |
suggestedBindings.suggestedBindings = bindings.data(); | |
suggestedBindings.countSuggestedBindings = (uint32_t)bindings.size(); | |
CHECK_XRCMD(xrSuggestInteractionProfileBindings(m_instance, &suggestedBindings)); | |
} | |
// Suggest bindings for the Vive Controller. | |
{ | |
XrPath viveControllerInteractionProfilePath; | |
CHECK_XRCMD( | |
xrStringToPath(m_instance, "/interaction_profiles/htc/vive_controller", &viveControllerInteractionProfilePath)); | |
std::vector<XrActionSuggestedBinding> bindings{{{m_input.grabAction, triggerValuePath[Side::LEFT]}, | |
{m_input.grabAction, triggerValuePath[Side::RIGHT]}, | |
{m_input.poseAction, posePath[Side::LEFT]}, | |
{m_input.poseAction, posePath[Side::RIGHT]}, | |
{m_input.quitAction, menuClickPath[Side::LEFT]}, | |
{m_input.quitAction, menuClickPath[Side::RIGHT]}, | |
{m_input.vibrateAction, hapticPath[Side::LEFT]}, | |
{m_input.vibrateAction, hapticPath[Side::RIGHT]}}}; | |
XrInteractionProfileSuggestedBinding suggestedBindings{XR_TYPE_INTERACTION_PROFILE_SUGGESTED_BINDING}; | |
suggestedBindings.interactionProfile = viveControllerInteractionProfilePath; | |
suggestedBindings.suggestedBindings = bindings.data(); | |
suggestedBindings.countSuggestedBindings = (uint32_t)bindings.size(); | |
CHECK_XRCMD(xrSuggestInteractionProfileBindings(m_instance, &suggestedBindings)); | |
} | |
// Suggest bindings for the Valve Index Controller. | |
{ | |
XrPath indexControllerInteractionProfilePath; | |
CHECK_XRCMD( | |
xrStringToPath(m_instance, "/interaction_profiles/valve/index_controller", &indexControllerInteractionProfilePath)); | |
std::vector<XrActionSuggestedBinding> bindings{{{m_input.grabAction, squeezeForcePath[Side::LEFT]}, | |
{m_input.grabAction, squeezeForcePath[Side::RIGHT]}, | |
{m_input.poseAction, posePath[Side::LEFT]}, | |
{m_input.poseAction, posePath[Side::RIGHT]}, | |
{m_input.quitAction, bClickPath[Side::LEFT]}, | |
{m_input.quitAction, bClickPath[Side::RIGHT]}, | |
{m_input.vibrateAction, hapticPath[Side::LEFT]}, | |
{m_input.vibrateAction, hapticPath[Side::RIGHT]}}}; | |
XrInteractionProfileSuggestedBinding suggestedBindings{XR_TYPE_INTERACTION_PROFILE_SUGGESTED_BINDING}; | |
suggestedBindings.interactionProfile = indexControllerInteractionProfilePath; | |
suggestedBindings.suggestedBindings = bindings.data(); | |
suggestedBindings.countSuggestedBindings = (uint32_t)bindings.size(); | |
CHECK_XRCMD(xrSuggestInteractionProfileBindings(m_instance, &suggestedBindings)); | |
} | |
// Suggest bindings for the Microsoft Mixed Reality Motion Controller. | |
{ | |
XrPath microsoftMixedRealityInteractionProfilePath; | |
CHECK_XRCMD(xrStringToPath(m_instance, "/interaction_profiles/microsoft/motion_controller", | |
µsoftMixedRealityInteractionProfilePath)); | |
std::vector<XrActionSuggestedBinding> bindings{{{m_input.grabAction, squeezeClickPath[Side::LEFT]}, | |
{m_input.grabAction, squeezeClickPath[Side::RIGHT]}, | |
{m_input.poseAction, posePath[Side::LEFT]}, | |
{m_input.poseAction, posePath[Side::RIGHT]}, | |
{m_input.quitAction, menuClickPath[Side::LEFT]}, | |
{m_input.quitAction, menuClickPath[Side::RIGHT]}, | |
{m_input.vibrateAction, hapticPath[Side::LEFT]}, | |
{m_input.vibrateAction, hapticPath[Side::RIGHT]}}}; | |
XrInteractionProfileSuggestedBinding suggestedBindings{XR_TYPE_INTERACTION_PROFILE_SUGGESTED_BINDING}; | |
suggestedBindings.interactionProfile = microsoftMixedRealityInteractionProfilePath; | |
suggestedBindings.suggestedBindings = bindings.data(); | |
suggestedBindings.countSuggestedBindings = (uint32_t)bindings.size(); | |
CHECK_XRCMD(xrSuggestInteractionProfileBindings(m_instance, &suggestedBindings)); | |
} | |
XrActionSpaceCreateInfo actionSpaceInfo{XR_TYPE_ACTION_SPACE_CREATE_INFO}; | |
actionSpaceInfo.action = m_input.poseAction; | |
actionSpaceInfo.poseInActionSpace.orientation.w = 1.f; | |
actionSpaceInfo.subactionPath = m_input.handSubactionPath[Side::LEFT]; | |
CHECK_XRCMD(xrCreateActionSpace(m_session, &actionSpaceInfo, &m_input.handSpace[Side::LEFT])); | |
actionSpaceInfo.subactionPath = m_input.handSubactionPath[Side::RIGHT]; | |
CHECK_XRCMD(xrCreateActionSpace(m_session, &actionSpaceInfo, &m_input.handSpace[Side::RIGHT])); | |
XrSessionActionSetsAttachInfo attachInfo{XR_TYPE_SESSION_ACTION_SETS_ATTACH_INFO}; | |
attachInfo.countActionSets = 1; | |
attachInfo.actionSets = &m_input.actionSet; | |
CHECK_XRCMD(xrAttachSessionActionSets(m_session, &attachInfo)); | |
} | |
void CreateVisualizedSpaces() { | |
CHECK(m_session != XR_NULL_HANDLE); | |
std::string visualizedSpaces[] = {"ViewFront", "Local", "Stage", "StageLeft", "StageRight", "StageLeftRotated", | |
"StageRightRotated"}; | |
for (const auto& visualizedSpace : visualizedSpaces) { | |
XrReferenceSpaceCreateInfo referenceSpaceCreateInfo = GetXrReferenceSpaceCreateInfo(visualizedSpace); | |
XrSpace space; | |
XrResult res = xrCreateReferenceSpace(m_session, &referenceSpaceCreateInfo, &space); | |
if (XR_SUCCEEDED(res)) { | |
m_visualizedSpaces.push_back(space); | |
} else { | |
Log::Write(Log::Level::Warning, | |
Fmt("Failed to create reference space %s with error %d", visualizedSpace.c_str(), res)); | |
} | |
} | |
} | |
void InitializeSession() override { | |
CHECK(m_instance != XR_NULL_HANDLE); | |
CHECK(m_session == XR_NULL_HANDLE); | |
{ | |
Log::Write(Log::Level::Verbose, Fmt("Creating session...")); | |
XrSessionCreateInfo createInfo{XR_TYPE_SESSION_CREATE_INFO}; | |
createInfo.next = m_graphicsPlugin->GetGraphicsBinding(); | |
createInfo.systemId = m_systemId; | |
CHECK_XRCMD(xrCreateSession(m_instance, &createInfo, &m_session)); | |
} | |
LogReferenceSpaces(); | |
InitializeActions(); | |
CreateVisualizedSpaces(); | |
{ | |
XrReferenceSpaceCreateInfo referenceSpaceCreateInfo = GetXrReferenceSpaceCreateInfo(m_options->AppSpace); | |
CHECK_XRCMD(xrCreateReferenceSpace(m_session, &referenceSpaceCreateInfo, &m_appSpace)); | |
} | |
} | |
void CreateSwapchains() override { | |
CHECK(m_session != XR_NULL_HANDLE); | |
CHECK(m_swapchains.empty()); | |
CHECK(m_configViews.empty()); | |
// Read graphics properties for preferred swapchain length and logging. | |
XrSystemProperties systemProperties{XR_TYPE_SYSTEM_PROPERTIES}; | |
CHECK_XRCMD(xrGetSystemProperties(m_instance, m_systemId, &systemProperties)); | |
// Log system properties. | |
Log::Write(Log::Level::Info, | |
Fmt("System Properties: Name=%s VendorId=%d", systemProperties.systemName, systemProperties.vendorId)); | |
Log::Write(Log::Level::Info, Fmt("System Graphics Properties: MaxWidth=%d MaxHeight=%d MaxLayers=%d", | |
systemProperties.graphicsProperties.maxSwapchainImageWidth, | |
systemProperties.graphicsProperties.maxSwapchainImageHeight, | |
systemProperties.graphicsProperties.maxLayerCount)); | |
Log::Write(Log::Level::Info, Fmt("System Tracking Properties: OrientationTracking=%s PositionTracking=%s", | |
systemProperties.trackingProperties.orientationTracking == XR_TRUE ? "True" : "False", | |
systemProperties.trackingProperties.positionTracking == XR_TRUE ? "True" : "False")); | |
// Note: No other view configurations exist at the time this code was written. If this | |
// condition is not met, the project will need to be audited to see how support should be | |
// added. | |
CHECK_MSG(m_viewConfigType == XR_VIEW_CONFIGURATION_TYPE_PRIMARY_STEREO, "Unsupported view configuration type"); | |
// Query and cache view configuration views. | |
uint32_t viewCount; | |
CHECK_XRCMD(xrEnumerateViewConfigurationViews(m_instance, m_systemId, m_viewConfigType, 0, &viewCount, nullptr)); | |
m_configViews.resize(viewCount, {XR_TYPE_VIEW_CONFIGURATION_VIEW}); | |
CHECK_XRCMD(xrEnumerateViewConfigurationViews(m_instance, m_systemId, m_viewConfigType, viewCount, &viewCount, | |
m_configViews.data())); | |
// Create and cache view buffer for xrLocateViews later. | |
m_views.resize(viewCount, {XR_TYPE_VIEW}); | |
// Create the swapchain and get the images. | |
if (viewCount > 0) { | |
// Select a swapchain format. | |
uint32_t swapchainFormatCount; | |
CHECK_XRCMD(xrEnumerateSwapchainFormats(m_session, 0, &swapchainFormatCount, nullptr)); | |
std::vector<int64_t> swapchainFormats(swapchainFormatCount); | |
CHECK_XRCMD(xrEnumerateSwapchainFormats(m_session, (uint32_t)swapchainFormats.size(), &swapchainFormatCount, | |
swapchainFormats.data())); | |
CHECK(swapchainFormatCount == swapchainFormats.size()); | |
m_colorSwapchainFormat = m_graphicsPlugin->SelectColorSwapchainFormat(swapchainFormats); | |
// Print swapchain formats and the selected one. | |
{ | |
std::string swapchainFormatsString; | |
for (int64_t format : swapchainFormats) { | |
const bool selected = format == m_colorSwapchainFormat; | |
swapchainFormatsString += " "; | |
if (selected) { | |
swapchainFormatsString += "["; | |
} | |
swapchainFormatsString += std::to_string(format); | |
if (selected) { | |
swapchainFormatsString += "]"; | |
} | |
} | |
Log::Write(Log::Level::Verbose, Fmt("Swapchain Formats: %s", swapchainFormatsString.c_str())); | |
} | |
// Create a swapchain for each view. | |
for (uint32_t i = 0; i < viewCount; i++) { | |
const XrViewConfigurationView& vp = m_configViews[i]; | |
Log::Write(Log::Level::Info, | |
Fmt("Creating swapchain for view %d with dimensions Width=%d Height=%d SampleCount=%d", i, | |
vp.recommendedImageRectWidth, vp.recommendedImageRectHeight, vp.recommendedSwapchainSampleCount)); | |
// Create the swapchain. | |
XrSwapchainCreateInfo swapchainCreateInfo{XR_TYPE_SWAPCHAIN_CREATE_INFO}; | |
swapchainCreateInfo.arraySize = 1; | |
swapchainCreateInfo.format = m_colorSwapchainFormat; | |
swapchainCreateInfo.width = vp.recommendedImageRectWidth; | |
swapchainCreateInfo.height = vp.recommendedImageRectHeight; | |
swapchainCreateInfo.mipCount = 1; | |
swapchainCreateInfo.faceCount = 1; | |
swapchainCreateInfo.sampleCount = m_graphicsPlugin->GetSupportedSwapchainSampleCount(vp); | |
swapchainCreateInfo.usageFlags = XR_SWAPCHAIN_USAGE_SAMPLED_BIT | XR_SWAPCHAIN_USAGE_COLOR_ATTACHMENT_BIT; | |
Swapchain swapchain; | |
swapchain.width = swapchainCreateInfo.width; | |
swapchain.height = swapchainCreateInfo.height; | |
CHECK_XRCMD(xrCreateSwapchain(m_session, &swapchainCreateInfo, &swapchain.handle)); | |
m_swapchains.push_back(swapchain); | |
uint32_t imageCount; | |
CHECK_XRCMD(xrEnumerateSwapchainImages(swapchain.handle, 0, &imageCount, nullptr)); | |
// XXX This should really just return XrSwapchainImageBaseHeader* | |
std::vector<XrSwapchainImageBaseHeader*> swapchainImages = | |
m_graphicsPlugin->AllocateSwapchainImageStructs(imageCount, swapchainCreateInfo); | |
CHECK_XRCMD(xrEnumerateSwapchainImages(swapchain.handle, imageCount, &imageCount, swapchainImages[0])); | |
m_swapchainImages.insert(std::make_pair(swapchain.handle, std::move(swapchainImages))); | |
} | |
} | |
} | |
// Return event if one is available, otherwise return null. | |
const XrEventDataBaseHeader* TryReadNextEvent() { | |
// It is sufficient to clear the just the XrEventDataBuffer header to | |
// XR_TYPE_EVENT_DATA_BUFFER | |
XrEventDataBaseHeader* baseHeader = reinterpret_cast<XrEventDataBaseHeader*>(&m_eventDataBuffer); | |
*baseHeader = {XR_TYPE_EVENT_DATA_BUFFER}; | |
const XrResult xr = xrPollEvent(m_instance, &m_eventDataBuffer); | |
if (xr == XR_SUCCESS) { | |
if (baseHeader->type == XR_TYPE_EVENT_DATA_EVENTS_LOST) { | |
const XrEventDataEventsLost* const eventsLost = reinterpret_cast<const XrEventDataEventsLost*>(baseHeader); | |
Log::Write(Log::Level::Warning, Fmt("%d events lost", eventsLost)); | |
} | |
return baseHeader; | |
} | |
if (xr == XR_EVENT_UNAVAILABLE) { | |
return nullptr; | |
} | |
THROW_XR(xr, "xrPollEvent"); | |
} | |
void PollEvents(bool* exitRenderLoop, bool* requestRestart) override { | |
*exitRenderLoop = *requestRestart = false; | |
// Process all pending messages. | |
while (const XrEventDataBaseHeader* event = TryReadNextEvent()) { | |
switch (event->type) { | |
case XR_TYPE_EVENT_DATA_INSTANCE_LOSS_PENDING: { | |
const auto& instanceLossPending = *reinterpret_cast<const XrEventDataInstanceLossPending*>(event); | |
Log::Write(Log::Level::Warning, Fmt("XrEventDataInstanceLossPending by %lld", instanceLossPending.lossTime)); | |
*exitRenderLoop = true; | |
*requestRestart = true; | |
return; | |
} | |
case XR_TYPE_EVENT_DATA_SESSION_STATE_CHANGED: { | |
auto sessionStateChangedEvent = *reinterpret_cast<const XrEventDataSessionStateChanged*>(event); | |
HandleSessionStateChangedEvent(sessionStateChangedEvent, exitRenderLoop, requestRestart); | |
break; | |
} | |
case XR_TYPE_EVENT_DATA_INTERACTION_PROFILE_CHANGED: | |
LogActionSourceName(m_input.grabAction, "Grab"); | |
LogActionSourceName(m_input.quitAction, "Quit"); | |
LogActionSourceName(m_input.poseAction, "Pose"); | |
LogActionSourceName(m_input.vibrateAction, "Vibrate"); | |
break; | |
case XR_TYPE_EVENT_DATA_REFERENCE_SPACE_CHANGE_PENDING: | |
default: { | |
Log::Write(Log::Level::Verbose, Fmt("Ignoring event type %d", event->type)); | |
break; | |
} | |
} | |
} | |
} | |
void HandleSessionStateChangedEvent(const XrEventDataSessionStateChanged& stateChangedEvent, bool* exitRenderLoop, | |
bool* requestRestart) { | |
const XrSessionState oldState = m_sessionState; | |
m_sessionState = stateChangedEvent.state; | |
Log::Write(Log::Level::Info, Fmt("XrEventDataSessionStateChanged: state %s->%s session=%lld time=%lld", to_string(oldState), | |
to_string(m_sessionState), stateChangedEvent.session, stateChangedEvent.time)); | |
if ((stateChangedEvent.session != XR_NULL_HANDLE) && (stateChangedEvent.session != m_session)) { | |
Log::Write(Log::Level::Error, "XrEventDataSessionStateChanged for unknown session"); | |
return; | |
} | |
switch (m_sessionState) { | |
case XR_SESSION_STATE_READY: { | |
CHECK(m_session != XR_NULL_HANDLE); | |
XrSessionBeginInfo sessionBeginInfo{XR_TYPE_SESSION_BEGIN_INFO}; | |
sessionBeginInfo.primaryViewConfigurationType = m_viewConfigType; | |
CHECK_XRCMD(xrBeginSession(m_session, &sessionBeginInfo)); | |
m_sessionRunning = true; | |
break; | |
} | |
case XR_SESSION_STATE_STOPPING: { | |
CHECK(m_session != XR_NULL_HANDLE); | |
m_sessionRunning = false; | |
CHECK_XRCMD(xrEndSession(m_session)) | |
break; | |
} | |
case XR_SESSION_STATE_EXITING: { | |
*exitRenderLoop = true; | |
// Do not attempt to restart because user closed this session. | |
*requestRestart = false; | |
break; | |
} | |
case XR_SESSION_STATE_LOSS_PENDING: { | |
*exitRenderLoop = true; | |
// Poll for a new instance. | |
*requestRestart = true; | |
break; | |
} | |
default: | |
break; | |
} | |
} | |
void LogActionSourceName(XrAction action, const std::string& actionName) const { | |
XrBoundSourcesForActionEnumerateInfo getInfo = {XR_TYPE_BOUND_SOURCES_FOR_ACTION_ENUMERATE_INFO}; | |
getInfo.action = action; | |
uint32_t pathCount = 0; | |
CHECK_XRCMD(xrEnumerateBoundSourcesForAction(m_session, &getInfo, 0, &pathCount, nullptr)); | |
std::vector<XrPath> paths(pathCount); | |
CHECK_XRCMD(xrEnumerateBoundSourcesForAction(m_session, &getInfo, uint32_t(paths.size()), &pathCount, paths.data())); | |
std::string sourceName; | |
for (uint32_t i = 0; i < pathCount; ++i) { | |
constexpr XrInputSourceLocalizedNameFlags all = XR_INPUT_SOURCE_LOCALIZED_NAME_USER_PATH_BIT | | |
XR_INPUT_SOURCE_LOCALIZED_NAME_INTERACTION_PROFILE_BIT | | |
XR_INPUT_SOURCE_LOCALIZED_NAME_COMPONENT_BIT; | |
XrInputSourceLocalizedNameGetInfo nameInfo = {XR_TYPE_INPUT_SOURCE_LOCALIZED_NAME_GET_INFO}; | |
nameInfo.sourcePath = paths[i]; | |
nameInfo.whichComponents = all; | |
uint32_t size = 0; | |
CHECK_XRCMD(xrGetInputSourceLocalizedName(m_session, &nameInfo, 0, &size, nullptr)); | |
if (size < 1) { | |
continue; | |
} | |
std::vector<char> grabSource(size); | |
CHECK_XRCMD(xrGetInputSourceLocalizedName(m_session, &nameInfo, uint32_t(grabSource.size()), &size, grabSource.data())); | |
if (!sourceName.empty()) { | |
sourceName += " and "; | |
} | |
sourceName += "'"; | |
sourceName += std::string(grabSource.data(), size - 1); | |
sourceName += "'"; | |
} | |
Log::Write(Log::Level::Info, | |
Fmt("%s action is bound to %s", actionName.c_str(), ((!sourceName.empty()) ? sourceName.c_str() : "nothing"))); | |
} | |
bool IsSessionRunning() const override { return m_sessionRunning; } | |
bool IsSessionFocused() const override { return m_sessionState == XR_SESSION_STATE_FOCUSED; } | |
void PollActions() override { | |
m_input.handActive = {XR_FALSE, XR_FALSE}; | |
// Sync actions | |
const XrActiveActionSet activeActionSet{m_input.actionSet, XR_NULL_PATH}; | |
XrActionsSyncInfo syncInfo{XR_TYPE_ACTIONS_SYNC_INFO}; | |
syncInfo.countActiveActionSets = 1; | |
syncInfo.activeActionSets = &activeActionSet; | |
CHECK_XRCMD(xrSyncActions(m_session, &syncInfo)); | |
// Get pose and grab action state and start haptic vibrate when hand is 90% squeezed. | |
for (auto hand : {Side::LEFT, Side::RIGHT}) { | |
XrActionStateGetInfo getInfo{XR_TYPE_ACTION_STATE_GET_INFO}; | |
getInfo.action = m_input.grabAction; | |
getInfo.subactionPath = m_input.handSubactionPath[hand]; | |
XrActionStateFloat grabValue{XR_TYPE_ACTION_STATE_FLOAT}; | |
CHECK_XRCMD(xrGetActionStateFloat(m_session, &getInfo, &grabValue)); | |
if (grabValue.isActive == XR_TRUE) { | |
// Scale the rendered hand by 1.0f (open) to 0.5f (fully squeezed). | |
m_input.handScale[hand] = 1.0f - 0.5f * grabValue.currentState; | |
if (grabValue.currentState > 0.9f) { | |
XrHapticVibration vibration{XR_TYPE_HAPTIC_VIBRATION}; | |
vibration.amplitude = 0.5; | |
vibration.duration = XR_MIN_HAPTIC_DURATION; | |
vibration.frequency = XR_FREQUENCY_UNSPECIFIED; | |
XrHapticActionInfo hapticActionInfo{XR_TYPE_HAPTIC_ACTION_INFO}; | |
hapticActionInfo.action = m_input.vibrateAction; | |
hapticActionInfo.subactionPath = m_input.handSubactionPath[hand]; | |
CHECK_XRCMD(xrApplyHapticFeedback(m_session, &hapticActionInfo, (XrHapticBaseHeader*)&vibration)); | |
} | |
} | |
getInfo.action = m_input.poseAction; | |
XrActionStatePose poseState{XR_TYPE_ACTION_STATE_POSE}; | |
CHECK_XRCMD(xrGetActionStatePose(m_session, &getInfo, &poseState)); | |
m_input.handActive[hand] = poseState.isActive; | |
} | |
// There were no subaction paths specified for the quit action, because we don't care which hand did it. | |
XrActionStateGetInfo getInfo{XR_TYPE_ACTION_STATE_GET_INFO, nullptr, m_input.quitAction, XR_NULL_PATH}; | |
XrActionStateBoolean quitValue{XR_TYPE_ACTION_STATE_BOOLEAN}; | |
CHECK_XRCMD(xrGetActionStateBoolean(m_session, &getInfo, &quitValue)); | |
if ((quitValue.isActive == XR_TRUE) && (quitValue.changedSinceLastSync == XR_TRUE) && (quitValue.currentState == XR_TRUE)) { | |
CHECK_XRCMD(xrRequestExitSession(m_session)); | |
} | |
} | |
void RenderFrame() override { | |
CHECK(m_session != XR_NULL_HANDLE); | |
XrFrameWaitInfo frameWaitInfo{XR_TYPE_FRAME_WAIT_INFO}; | |
XrFrameState frameState{XR_TYPE_FRAME_STATE}; | |
CHECK_XRCMD(xrWaitFrame(m_session, &frameWaitInfo, &frameState)); | |
XrFrameBeginInfo frameBeginInfo{XR_TYPE_FRAME_BEGIN_INFO}; | |
CHECK_XRCMD(xrBeginFrame(m_session, &frameBeginInfo)); | |
std::vector<XrCompositionLayerBaseHeader*> layers; | |
XrCompositionLayerProjection layer{XR_TYPE_COMPOSITION_LAYER_PROJECTION}; | |
std::vector<XrCompositionLayerProjectionView> projectionLayerViews; | |
if (frameState.shouldRender == XR_TRUE) { | |
if (RenderLayer(frameState.predictedDisplayTime, projectionLayerViews, layer)) { | |
//layers.push_back(reinterpret_cast<XrCompositionLayerBaseHeader*>(&layer)); | |
} | |
} | |
XrFrameEndInfo frameEndInfo{XR_TYPE_FRAME_END_INFO}; | |
frameEndInfo.displayTime = frameState.predictedDisplayTime; | |
frameEndInfo.environmentBlendMode = m_environmentBlendMode; | |
frameEndInfo.layerCount = (uint32_t)layers.size(); | |
frameEndInfo.layers = layers.data(); | |
CHECK_XRCMD(xrEndFrame(m_session, &frameEndInfo)); | |
} | |
bool RenderLayer(XrTime predictedDisplayTime, std::vector<XrCompositionLayerProjectionView>& projectionLayerViews, | |
XrCompositionLayerProjection& layer) { | |
XrResult res; | |
XrViewState viewState{XR_TYPE_VIEW_STATE}; | |
uint32_t viewCapacityInput = (uint32_t)m_views.size(); | |
uint32_t viewCountOutput; | |
XrViewLocateInfo viewLocateInfo{XR_TYPE_VIEW_LOCATE_INFO}; | |
viewLocateInfo.viewConfigurationType = m_viewConfigType; | |
viewLocateInfo.displayTime = predictedDisplayTime; | |
viewLocateInfo.space = m_appSpace; | |
res = xrLocateViews(m_session, &viewLocateInfo, &viewState, viewCapacityInput, &viewCountOutput, m_views.data()); | |
CHECK_XRRESULT(res, "xrLocateViews"); | |
if ((viewState.viewStateFlags & XR_VIEW_STATE_POSITION_VALID_BIT) == 0 || | |
(viewState.viewStateFlags & XR_VIEW_STATE_ORIENTATION_VALID_BIT) == 0) { | |
return false; // There is no valid tracking poses for the views. | |
} | |
CHECK(viewCountOutput == viewCapacityInput); | |
CHECK(viewCountOutput == m_configViews.size()); | |
CHECK(viewCountOutput == m_swapchains.size()); | |
projectionLayerViews.resize(viewCountOutput); | |
// For each locatable space that we want to visualize, render a 25cm cube. | |
std::vector<Cube> cubes; | |
for (XrSpace visualizedSpace : m_visualizedSpaces) { | |
XrSpaceLocation spaceLocation{XR_TYPE_SPACE_LOCATION}; | |
res = xrLocateSpace(visualizedSpace, m_appSpace, predictedDisplayTime, &spaceLocation); | |
CHECK_XRRESULT(res, "xrLocateSpace"); | |
if (XR_UNQUALIFIED_SUCCESS(res)) { | |
if ((spaceLocation.locationFlags & XR_SPACE_LOCATION_POSITION_VALID_BIT) != 0 && | |
(spaceLocation.locationFlags & XR_SPACE_LOCATION_ORIENTATION_VALID_BIT) != 0) { | |
//REMOVE SPACE CUBES | |
//cubes.push_back(Cube{spaceLocation.pose, {0.25f, 0.25f, 0.25f}}); | |
} | |
} else { | |
Log::Write(Log::Level::Verbose, Fmt("Unable to locate a visualized reference space in app space: %d", res)); | |
} | |
} | |
// Render a 10cm cube scaled by grabAction for each hand. Note renderHand will only be | |
// true when the application has focus. | |
for (auto hand : {Side::LEFT, Side::RIGHT}) { | |
XrSpaceLocation spaceLocation{XR_TYPE_SPACE_LOCATION}; | |
res = xrLocateSpace(m_input.handSpace[hand], m_appSpace, predictedDisplayTime, &spaceLocation); | |
CHECK_XRRESULT(res, "xrLocateSpace"); | |
if (XR_UNQUALIFIED_SUCCESS(res)) { | |
if ((spaceLocation.locationFlags & XR_SPACE_LOCATION_POSITION_VALID_BIT) != 0 && | |
(spaceLocation.locationFlags & XR_SPACE_LOCATION_ORIENTATION_VALID_BIT) != 0) { | |
//float scale = 0.1f * m_input.handScale[hand]; | |
//REMOVE HAND CUBES | |
//cubes.push_back(Cube{spaceLocation.pose, {scale, scale, scale}}); | |
} | |
} else { | |
// Tracking loss is expected when the hand is not active so only log a message | |
// if the hand is active. | |
if (m_input.handActive[hand] == XR_TRUE) { | |
const char* handName[] = {"left", "right"}; | |
Log::Write(Log::Level::Verbose, | |
Fmt("Unable to locate %s hand action space in app space: %d", handName[hand], res)); | |
} | |
} | |
} | |
// Render view to the appropriate part of the swapchain image. | |
for (uint32_t i = 0; i < viewCountOutput; i++) { | |
// Each view has a separate swapchain which is acquired, rendered to, and released. | |
const Swapchain viewSwapchain = m_swapchains[i]; | |
XrSwapchainImageAcquireInfo acquireInfo{XR_TYPE_SWAPCHAIN_IMAGE_ACQUIRE_INFO}; | |
uint32_t swapchainImageIndex; | |
CHECK_XRCMD(xrAcquireSwapchainImage(viewSwapchain.handle, &acquireInfo, &swapchainImageIndex)); | |
XrSwapchainImageWaitInfo waitInfo{XR_TYPE_SWAPCHAIN_IMAGE_WAIT_INFO}; | |
waitInfo.timeout = XR_INFINITE_DURATION; | |
CHECK_XRCMD(xrWaitSwapchainImage(viewSwapchain.handle, &waitInfo)); | |
projectionLayerViews[i] = {XR_TYPE_COMPOSITION_LAYER_PROJECTION_VIEW}; | |
projectionLayerViews[i].pose = m_views[i].pose; | |
projectionLayerViews[i].fov = m_views[i].fov; | |
projectionLayerViews[i].subImage.swapchain = viewSwapchain.handle; | |
projectionLayerViews[i].subImage.imageRect.offset = {0, 0}; | |
projectionLayerViews[i].subImage.imageRect.extent = {viewSwapchain.width, viewSwapchain.height}; | |
const XrSwapchainImageBaseHeader* const swapchainImage = m_swapchainImages[viewSwapchain.handle][swapchainImageIndex]; | |
m_graphicsPlugin->RenderView(projectionLayerViews[i], swapchainImage, m_colorSwapchainFormat, cubes); | |
XrSwapchainImageReleaseInfo releaseInfo{XR_TYPE_SWAPCHAIN_IMAGE_RELEASE_INFO}; | |
CHECK_XRCMD(xrReleaseSwapchainImage(viewSwapchain.handle, &releaseInfo)); | |
} | |
layer.space = m_appSpace; | |
layer.viewCount = (uint32_t)projectionLayerViews.size(); | |
layer.views = projectionLayerViews.data(); | |
return true; | |
} | |
private: | |
const std::shared_ptr<Options> m_options; | |
std::shared_ptr<IPlatformPlugin> m_platformPlugin; | |
std::shared_ptr<IGraphicsPlugin> m_graphicsPlugin; | |
XrInstance m_instance{XR_NULL_HANDLE}; | |
XrSession m_session{XR_NULL_HANDLE}; | |
XrSpace m_appSpace{XR_NULL_HANDLE}; | |
XrFormFactor m_formFactor{XR_FORM_FACTOR_HEAD_MOUNTED_DISPLAY}; | |
XrViewConfigurationType m_viewConfigType{XR_VIEW_CONFIGURATION_TYPE_PRIMARY_STEREO}; | |
XrEnvironmentBlendMode m_environmentBlendMode{XR_ENVIRONMENT_BLEND_MODE_OPAQUE}; | |
XrSystemId m_systemId{XR_NULL_SYSTEM_ID}; | |
std::vector<XrViewConfigurationView> m_configViews; | |
std::vector<Swapchain> m_swapchains; | |
std::map<XrSwapchain, std::vector<XrSwapchainImageBaseHeader*>> m_swapchainImages; | |
std::vector<XrView> m_views; | |
int64_t m_colorSwapchainFormat{-1}; | |
std::vector<XrSpace> m_visualizedSpaces; | |
// Application's current lifecycle state according to the runtime | |
XrSessionState m_sessionState{XR_SESSION_STATE_UNKNOWN}; | |
bool m_sessionRunning{false}; | |
XrEventDataBuffer m_eventDataBuffer; | |
InputState m_input; | |
}; | |
} // namespace | |
std::shared_ptr<IOpenXrProgram> CreateOpenXrProgram(const std::shared_ptr<Options>& options, | |
const std::shared_ptr<IPlatformPlugin>& platformPlugin, | |
const std::shared_ptr<IGraphicsPlugin>& graphicsPlugin) { | |
return std::make_shared<OpenXrProgram>(options, platformPlugin, graphicsPlugin); | |
} |
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