Openxr_instance Class Reference

Collaboration diagram for Openxr_instance:

Public Member Functions
	Openxr_instance ()
	Openxr_instance (const Openxr_instance &)=delete
	Openxr_instance (Openxr_instance &&)=delete
	~Openxr_instance ()
XrInstance	get ()
Openxr_instance &	operator= (const Openxr_instance &)=delete
Openxr_instance &	operator= (Openxr_instance &&)=delete

Private Attributes
XrInstance	instance

Detailed Description

Definition at line 132 of file openxr_gl.cpp.

Constructor & Destructor Documentation

Openxr_instance() [1/3]

Openxr_instance::Openxr_instance ( )

inline

Definition at line 134 of file openxr_gl.cpp.

                         {
                uint32_t properties_count = 0;
                XrResult result = xrEnumerateInstanceExtensionProperties(nullptr,
                                properties_count,
                                &properties_count,
                                nullptr);
                if(!XR_SUCCEEDED(result)){
                        log_msg(LOG_LEVEL_WARNING, "Failed to check XR_KHR_OPENGL availability!\n");
                } else {
                        std::vector<XrExtensionProperties> props;
                        props.resize(properties_count);
                        for(auto& prop : props){
                                prop.type = XR_TYPE_EXTENSION_PROPERTIES;
                                prop.next = nullptr;
                        }
                        result = xrEnumerateInstanceExtensionProperties(nullptr,
                                        properties_count,
                                        &properties_count,
                                        props.data());
 
                        bool found = false;
                        for(const auto& prop : props){
                                if(strcmp(prop.extensionName, XR_KHR_OPENGL_ENABLE_EXTENSION_NAME) == 0){
                                        found = true;
                                        break;
                                }
                        }
                        if(!found){
                                throw std::runtime_error("OpenXR runtime does not support OpenGL interop!");
                        }
                }
                const char* const enabledExtensions[] = {XR_KHR_OPENGL_ENABLE_EXTENSION_NAME};
 
                XrInstanceCreateInfo instanceCreateInfo;
                instanceCreateInfo.type = XR_TYPE_INSTANCE_CREATE_INFO;
                instanceCreateInfo.next = NULL;
                instanceCreateInfo.createFlags = 0;
                instanceCreateInfo.enabledExtensionCount = 1;
                instanceCreateInfo.enabledExtensionNames = enabledExtensions;
                instanceCreateInfo.enabledApiLayerCount = 0;
                strcpy(instanceCreateInfo.applicationInfo.applicationName, "UltraGrid OpenXR gl display");
                strcpy(instanceCreateInfo.applicationInfo.engineName, "");
                instanceCreateInfo.applicationInfo.applicationVersion = 1;
                instanceCreateInfo.applicationInfo.engineVersion = 0;
                instanceCreateInfo.applicationInfo.apiVersion = XR_CURRENT_API_VERSION;
 
                result = xrCreateInstance(&instanceCreateInfo, &instance);
                if(!XR_SUCCEEDED(result)){
                        throw std::runtime_error("Failed to create OpenXR instance!");
                }
 
                XrInstanceProperties instanceProperties;
                instanceProperties.type = XR_TYPE_INSTANCE_PROPERTIES;
                instanceProperties.next = NULL;
 
                result = xrGetInstanceProperties(instance, &instanceProperties);
 
                if(XR_SUCCEEDED(result)){
                        printf("Runtime Name: %s\n", instanceProperties.runtimeName);
                        printf("Runtime Version: %d.%d.%d\n",
                                        XR_VERSION_MAJOR(instanceProperties.runtimeVersion),
                                        XR_VERSION_MINOR(instanceProperties.runtimeVersion),
                                        XR_VERSION_PATCH(instanceProperties.runtimeVersion));
                }
 
 
        }

References instance, LOG_LEVEL_WARNING, and log_msg().

Here is the call graph for this function:

~Openxr_instance()

Openxr_instance::~Openxr_instance ( )

inline

Definition at line 202 of file openxr_gl.cpp.

                          {
                xrDestroyInstance(instance);
        }

References instance.

Openxr_instance() [2/3]

Openxr_instance::Openxr_instance ( const Openxr_instance & )

delete

Openxr_instance() [3/3]

Openxr_instance::Openxr_instance ( Openxr_instance && )

delete

Member Function Documentation

get()

XrInstance Openxr_instance::get ( )

inline

Definition at line 211 of file openxr_gl.cpp.

{ return instance; }

References instance.

Referenced by display_xrgl_init(), display_xrgl_run(), and get_views().

operator=() [1/2]

Openxr_instance & Openxr_instance::operator= ( const Openxr_instance & )

delete

operator=() [2/2]

Openxr_instance & Openxr_instance::operator= ( Openxr_instance && )

delete

Member Data Documentation

instance

XrInstance Openxr_instance::instance

private

Definition at line 213 of file openxr_gl.cpp.

Referenced by Openxr_instance(), ~Openxr_instance(), and get().

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The documentation for this class was generated from the following file:

• src/video_display/openxr_gl.cpp