#include <cassert>
#include <Eigen/Core>
#include <Eigen/Geometry>
#include "GHOST_Types.h"
#include "GHOST_XrException.hh"
#include "GHOST_Xr_intern.hh"
#include "GHOST_XrControllerModel.hh"
#include "tiny_gltf.h"

Classes
struct	GHOST_XrControllerModelNode

struct	GHOST_XrPrimitive

Macros
#define	TINYGLTF_IMPLEMENTATION

#define	TINYGLTF_NO_STB_IMAGE

#define	TINYGLTF_NO_STB_IMAGE_WRITE

#define	STBIWDEF static inline

Functions
glTF Utilities
Adapted from Microsoft OpenXR-Mixed Reality Samples (MIT License): https://github.com/microsoft/OpenXR-MixedReality
static void	validate_accessor (const tinygltf::Accessor &accessor, const tinygltf::BufferView &buffer_view, const tinygltf::Buffer &buffer, size_t byte_stride, size_t element_size)

template<float(GHOST_XrControllerModelVertex::*) field>
static void	read_vertices (const tinygltf::Accessor &accessor, const tinygltf::BufferView &buffer_view, const tinygltf::Buffer &buffer, GHOST_XrPrimitive &primitive)

static void	load_attribute_accessor (const tinygltf::Model &gltf_model, const std::string &attribute_name, int accessor_id, GHOST_XrPrimitive &primitive)

template<typename TSrcIndex >
static void	read_indices (const tinygltf::Accessor &accessor, const tinygltf::BufferView &buffer_view, const tinygltf::Buffer &buffer, GHOST_XrPrimitive &primitive)

static void	load_index_accessor (const tinygltf::Model &gltf_model, const tinygltf::Accessor &accessor, GHOST_XrPrimitive &primitive)

static GHOST_XrPrimitive	read_primitive (const tinygltf::Model &gltf_model, const tinygltf::Primitive &gltf_primitive)

static void	calc_node_transforms (const tinygltf::Node &gltf_node, const float parent_transform[4][4], float r_local_transform[4][4], float r_world_transform[4][4])

static void	load_node (const tinygltf::Model &gltf_model, int gltf_node_id, int32_t parent_idx, const float parent_transform[4][4], const std::string &parent_name, const std::vector< XrControllerModelNodePropertiesMSFT > &node_properties, std::vector< GHOST_XrControllerModelVertex > &vertices, std::vector< uint32_t > &indices, std::vector< GHOST_XrControllerModelComponent > &components, std::vector< GHOST_XrControllerModelNode > &nodes, std::vector< int32_t > &node_state_indices)

OpenXR Extension Functions
static PFN_xrGetControllerModelKeyMSFT	g_xrGetControllerModelKeyMSFT = nullptr

static PFN_xrLoadControllerModelMSFT	g_xrLoadControllerModelMSFT = nullptr

static PFN_xrGetControllerModelPropertiesMSFT	g_xrGetControllerModelPropertiesMSFT = nullptr

static PFN_xrGetControllerModelStateMSFT	g_xrGetControllerModelStateMSFT = nullptr

static XrInstance	g_instance = XR_NULL_HANDLE

static void	init_controller_model_extension_functions (XrInstance instance)

Macro Definition Documentation

◆ STBIWDEF

#define STBIWDEF static inline

Definition at line 23 of file GHOST_XrControllerModel.cc.

◆ TINYGLTF_IMPLEMENTATION

#define TINYGLTF_IMPLEMENTATION

Definition at line 20 of file GHOST_XrControllerModel.cc.

◆ TINYGLTF_NO_STB_IMAGE

#define TINYGLTF_NO_STB_IMAGE

Definition at line 21 of file GHOST_XrControllerModel.cc.

◆ TINYGLTF_NO_STB_IMAGE_WRITE

#define TINYGLTF_NO_STB_IMAGE_WRITE

Definition at line 22 of file GHOST_XrControllerModel.cc.

Function Documentation

◆ calc_node_transforms()

static void calc_node_transforms	(	const tinygltf::Node &	gltf_node,
		const float	parent_transform[4][4],
		float	r_local_transform[4][4],
		float	r_world_transform[4][4] )

static

Calculate node local and world transforms.

Definition at line 226 of file GHOST_XrControllerModel.cc.

References float.

Referenced by load_node().

◆ init_controller_model_extension_functions()

static void init_controller_model_extension_functions ( XrInstance instance )

static

Definition at line 378 of file GHOST_XrControllerModel.cc.

References g_instance, g_xrGetControllerModelKeyMSFT, g_xrGetControllerModelPropertiesMSFT, g_xrGetControllerModelStateMSFT, g_xrLoadControllerModelMSFT, INIT_EXTENSION_FUNCTION, and instance.

Referenced by GHOST_XrControllerModel::GHOST_XrControllerModel().

◆ load_attribute_accessor()

static void load_attribute_accessor	(	const tinygltf::Model &	gltf_model,
		const std::string &	attribute_name,
		int	accessor_id,
		GHOST_XrPrimitive &	primitive )

static

Definition at line 100 of file GHOST_XrControllerModel.cc.

References read_vertices().

Referenced by read_primitive().

◆ load_index_accessor()

static void load_index_accessor	(	const tinygltf::Model &	gltf_model,
		const tinygltf::Accessor &	accessor,
		GHOST_XrPrimitive &	primitive )

static

Reads index data from a glTF primitive into a GHOST_XrPrimitive.

Definition at line 170 of file GHOST_XrControllerModel.cc.

References read_indices().

Referenced by read_primitive().

◆ load_node()

static void load_node	(	const tinygltf::Model &	gltf_model,
		int	gltf_node_id,
		int32_t	parent_idx,
		const float	parent_transform[4][4],
		const std::string &	parent_name,
		const std::vector< XrControllerModelNodePropertiesMSFT > &	node_properties,
		std::vector< GHOST_XrControllerModelVertex > &	vertices,
		std::vector< uint32_t > &	indices,
		std::vector< GHOST_XrControllerModelComponent > &	components,
		std::vector< GHOST_XrControllerModelNode > &	nodes,
		std::vector< int32_t > &	node_state_indices )

static

Definition at line 285 of file GHOST_XrControllerModel.cc.

References calc_node_transforms(), count, GHOST_XrPrimitive::indices, load_node(), read_primitive(), and GHOST_XrPrimitive::vertices.

Referenced by load_node().

◆ read_indices()

template<typename TSrcIndex >

static void read_indices	(	const tinygltf::Accessor &	accessor,
		const tinygltf::BufferView &	buffer_view,
		const tinygltf::Buffer &	buffer,
		GHOST_XrPrimitive &	primitive )

static

Reads index data from a glTF primitive into a GHOST_XrPrimitive. glTF indices may be 8bit, 16bit or 32bit integers. This will coalesce indices from the source type(s) into a 32bit integer.

Definition at line 134 of file GHOST_XrControllerModel.cc.

References GHOST_XrPrimitive::indices, and validate_accessor().

Referenced by load_index_accessor().

◆ read_primitive()

static GHOST_XrPrimitive read_primitive	(	const tinygltf::Model &	gltf_model,
		const tinygltf::Primitive &	gltf_primitive )

static

Definition at line 199 of file GHOST_XrControllerModel.cc.

References load_attribute_accessor(), and load_index_accessor().

Referenced by load_node().

◆ read_vertices()

template<float(GHOST_XrControllerModelVertex::*) field>

static void read_vertices	(	const tinygltf::Accessor &	accessor,
		const tinygltf::BufferView &	buffer_view,
		const tinygltf::Buffer &	buffer,
		GHOST_XrPrimitive &	primitive )

static

Definition at line 68 of file GHOST_XrControllerModel.cc.

References float, validate_accessor(), and GHOST_XrPrimitive::vertices.

Referenced by load_attribute_accessor().

◆ validate_accessor()

static void validate_accessor	(	const tinygltf::Accessor &	accessor,
		const tinygltf::BufferView &	buffer_view,
		const tinygltf::Buffer &	buffer,
		size_t	byte_stride,
		size_t	element_size )

static

Validate that an accessor does not go out of bounds of the buffer view that it references and that the buffer view does not exceed the bounds of the buffer that it references

Definition at line 48 of file GHOST_XrControllerModel.cc.

Referenced by read_indices(), and read_vertices().