Module xr_android_depth_texture 

TODO: XR_ANDROID_depth_texture extension implementation (AndroidXR)

This module provides access to the OpenXR XR_ANDROID_depth_texture extension, which allows Android applications to access depth and confidence texture data from the device’s depth sensors.

The extension provides both raw and smooth depth data, along with confidence values for each pixel, enabling advanced computer vision and depth-aware rendering applications.

Features

• Multiple Resolution Support: Quarter, half, and full resolution depth textures
• Raw and Processed Data: Access to both raw sensor data and smoothed depth information
• Confidence Values: Per-pixel confidence metrics for depth accuracy assessment
• Swapchain Management: Efficient depth texture rendering through OpenXR swapchains
• System Capability Detection: Runtime checking for depth tracking support

OpenXR Specification

This implementation follows the XR_ANDROID_depth_texture extension specification version 1, providing access to Android-specific depth sensor capabilities. https://developer.android.com/develop/xr/openxr/extensions/XR_ANDROID_depth_texture

Structs

DepthResolutionInfoAndroid

Structures for the depth texture extension Information about depth resolution capabilities

DepthSurfaceInfoAndroid

Surface information for depth texture rendering

DepthSwapchainCreateInfoAndroid

Creation parameters for depth swapchains

DepthSwapchainImageAndroid

Individual depth swapchain image containing multiple texture types

DepthTextureAndroid

Handle to a depth texture resource

DepthTextureCreateInfoAndroid

Creation parameters for depth textures

XrAndroidDepthTexture

Main extension handler for Android depth texture functionality

XrSystemDepthTrackingPropertiesANDROID

System properties structure for depth tracking capabilities

Constants

SURFACE_ORIGIN_BOTTOM_LEFT_ANDROID

SURFACE_ORIGIN_TOP_LEFT_ANDROID

Surface origin constants for Android depth textures

XR_ANDROID_DEPTH_TEXTURE_EXTENSION_NAME

Extension name for XR_FB_render_model

XR_DEPTH_RESOLUTION_FULL_ANDROID

XR_DEPTH_RESOLUTION_HALF_ANDROID

XR_DEPTH_RESOLUTION_QUARTER_ANDROID

Depth resolution enumeration values These define the available depth texture resolutions relative to the main display

XR_DEPTH_SWAPCHAIN_CREATE_RAW_CONFIDENCE_IMAGE_BIT_ANDROID

XR_DEPTH_SWAPCHAIN_CREATE_RAW_DEPTH_IMAGE_BIT_ANDROID

XR_DEPTH_SWAPCHAIN_CREATE_SMOOTH_CONFIDENCE_IMAGE_BIT_ANDROID

XR_DEPTH_SWAPCHAIN_CREATE_SMOOTH_DEPTH_IMAGE_BIT_ANDROID

Depth swapchain creation flags for different types of depth data These flags control which depth and confidence images are generated

XR_TYPE_DEPTH_RESOLUTION_INFO_ANDROID_RAW

Raw structure type constants for direct OpenXR API usage

XR_TYPE_DEPTH_SURFACE_INFO_ANDROID_RAW

XR_TYPE_DEPTH_SWAPCHAIN_CREATE_INFO_ANDROID_RAW

XR_TYPE_DEPTH_SWAPCHAIN_IMAGE_ANDROID_RAW

XR_TYPE_DEPTH_TEXTURE_ANDROID_RAW

XR_TYPE_DEPTH_TEXTURE_CREATE_INFO_ANDROID_RAW

XR_TYPE_SYSTEM_DEPTH_TRACKING_PROPERTIES_ANDROID_RAW

Functions

create_depth_swapchain_info

Create a depth swapchain creation info structure

create_depth_texture_info

Helper function to create depth texture creation info

get_resolution_dimensions

Helper functions used by lib.rs Get the pixel dimensions for a given depth resolution enum

is_android_depth_texture_extension_available

Convenience function to check if XR_FB_render_model extension is available

test_depth_texture_extension

Comprehensive test function for XR_ANDROID_depth_texture extension

xr_type_depth_resolution_info_android

Structure type functions (using raw values from OpenXR specification)

xr_type_depth_surface_info_android

xr_type_depth_swapchain_create_info_android

xr_type_depth_swapchain_image_android

xr_type_depth_texture_android

xr_type_depth_texture_create_info_android

xr_type_system_depth_tracking_properties_android

Type Aliases

ActionType

DepthResolutionAndroid

DepthSwapchainCreateFlagsAndroid

ReferenceSpaceType

SessionState

SpaceLocationFlags

SurfaceOriginAndroid

Type definitions for XR_ANDROID_depth_texture (openxr_sys compatible)

ViewConfigurationType