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authorLucaSas <sas.luca.alex@gmail.com>2021-11-04 16:14:58 +0200
committerLucaSas <sas.luca.alex@gmail.com>2021-11-04 16:14:58 +0200
commitd96b4ebce5ee6245fa80d27d41b67aa56555c912 (patch)
treef28cb388a14c4bd9da8f4b57b213eb1539fc5367 /libs/raylib/src/external/cgltf.h
parent6bcb1207addb4afe041c94e68e23c77175164956 (diff)
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Changed the template to now download raylib instead of having it in the repo.
Diffstat (limited to 'libs/raylib/src/external/cgltf.h')
-rw-r--r--libs/raylib/src/external/cgltf.h5069
1 files changed, 0 insertions, 5069 deletions
diff --git a/libs/raylib/src/external/cgltf.h b/libs/raylib/src/external/cgltf.h
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-/**
- * cgltf - a single-file glTF 2.0 parser written in C99.
- *
- * Version: 1.5
- *
- * Website: https://github.com/jkuhlmann/cgltf
- *
- * Distributed under the MIT License, see notice at the end of this file.
- *
- * Building:
- * Include this file where you need the struct and function
- * declarations. Have exactly one source file where you define
- * `CGLTF_IMPLEMENTATION` before including this file to get the
- * function definitions.
- *
- * Reference:
- * `cgltf_result cgltf_parse(const cgltf_options*, const void*,
- * cgltf_size, cgltf_data**)` parses both glTF and GLB data. If
- * this function returns `cgltf_result_success`, you have to call
- * `cgltf_free()` on the created `cgltf_data*` variable.
- * Note that contents of external files for buffers and images are not
- * automatically loaded. You'll need to read these files yourself using
- * URIs in the `cgltf_data` structure.
- *
- * `cgltf_options` is the struct passed to `cgltf_parse()` to control
- * parts of the parsing process. You can use it to force the file type
- * and provide memory allocation as well as file operation callbacks.
- * Should be zero-initialized to trigger default behavior.
- *
- * `cgltf_data` is the struct allocated and filled by `cgltf_parse()`.
- * It generally mirrors the glTF format as described by the spec (see
- * https://github.com/KhronosGroup/glTF/tree/master/specification/2.0).
- *
- * `void cgltf_free(cgltf_data*)` frees the allocated `cgltf_data`
- * variable.
- *
- * `cgltf_result cgltf_load_buffers(const cgltf_options*, cgltf_data*,
- * const char* gltf_path)` can be optionally called to open and read buffer
- * files using the `FILE*` APIs. The `gltf_path` argument is the path to
- * the original glTF file, which allows the parser to resolve the path to
- * buffer files.
- *
- * `cgltf_result cgltf_load_buffer_base64(const cgltf_options* options,
- * cgltf_size size, const char* base64, void** out_data)` decodes
- * base64-encoded data content. Used internally by `cgltf_load_buffers()`
- * and may be useful if you're not dealing with normal files.
- *
- * `cgltf_result cgltf_parse_file(const cgltf_options* options, const
- * char* path, cgltf_data** out_data)` can be used to open the given
- * file using `FILE*` APIs and parse the data using `cgltf_parse()`.
- *
- * `cgltf_result cgltf_validate(cgltf_data*)` can be used to do additional
- * checks to make sure the parsed glTF data is valid.
- *
- * `cgltf_node_transform_local` converts the translation / rotation / scale properties of a node
- * into a mat4.
- *
- * `cgltf_node_transform_world` calls `cgltf_node_transform_local` on every ancestor in order
- * to compute the root-to-node transformation.
- *
- * `cgltf_accessor_unpack_floats` reads in the data from an accessor, applies sparse data (if any),
- * and converts them to floating point. Assumes that `cgltf_load_buffers` has already been called.
- * By passing null for the output pointer, users can find out how many floats are required in the
- * output buffer.
- *
- * `cgltf_accessor_num_components` is a tiny utility that tells you the dimensionality of
- * a certain accessor type. This can be used before `cgltf_accessor_unpack_floats` to help allocate
- * the necessary amount of memory.
- *
- * `cgltf_accessor_read_float` reads a certain element from a non-sparse accessor and converts it to
- * floating point, assuming that `cgltf_load_buffers` has already been called. The passed-in element
- * size is the number of floats in the output buffer, which should be in the range [1, 16]. Returns
- * false if the passed-in element_size is too small, or if the accessor is sparse.
- *
- * `cgltf_accessor_read_uint` is similar to its floating-point counterpart, but limited to reading
- * vector types and does not support matrix types. The passed-in element size is the number of uints
- * in the output buffer, which should be in the range [1, 4]. Returns false if the passed-in
- * element_size is too small, or if the accessor is sparse.
- *
- * `cgltf_accessor_read_index` is similar to its floating-point counterpart, but it returns size_t
- * and only works with single-component data types.
- *
- * `cgltf_result cgltf_copy_extras_json(const cgltf_data*, const cgltf_extras*,
- * char* dest, cgltf_size* dest_size)` allows users to retrieve the "extras" data that
- * can be attached to many glTF objects (which can be arbitrary JSON data). The
- * `cgltf_extras` struct stores the offsets of the start and end of the extras JSON data
- * as it appears in the complete glTF JSON data. This function copies the extras data
- * into the provided buffer. If `dest` is NULL, the length of the data is written into
- * `dest_size`. You can then parse this data using your own JSON parser
- * or, if you've included the cgltf implementation using the integrated JSMN JSON parser.
- */
-#ifndef CGLTF_H_INCLUDED__
-#define CGLTF_H_INCLUDED__
-
-#include <stddef.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-typedef size_t cgltf_size;
-typedef float cgltf_float;
-typedef int cgltf_int;
-typedef unsigned int cgltf_uint;
-typedef int cgltf_bool;
-
-typedef enum cgltf_file_type
-{
- cgltf_file_type_invalid,
- cgltf_file_type_gltf,
- cgltf_file_type_glb,
-} cgltf_file_type;
-
-typedef enum cgltf_result
-{
- cgltf_result_success,
- cgltf_result_data_too_short,
- cgltf_result_unknown_format,
- cgltf_result_invalid_json,
- cgltf_result_invalid_gltf,
- cgltf_result_invalid_options,
- cgltf_result_file_not_found,
- cgltf_result_io_error,
- cgltf_result_out_of_memory,
- cgltf_result_legacy_gltf,
-} cgltf_result;
-
-typedef struct cgltf_memory_options
-{
- void* (*alloc)(void* user, cgltf_size size);
- void (*free) (void* user, void* ptr);
- void* user_data;
-} cgltf_memory_options;
-
-typedef struct cgltf_file_options
-{
- cgltf_result(*read)(const struct cgltf_memory_options* memory_options, const struct cgltf_file_options* file_options, const char* path, cgltf_size* size, void** data);
- void (*release)(const struct cgltf_memory_options* memory_options, const struct cgltf_file_options* file_options, void* data);
- void* user_data;
-} cgltf_file_options;
-
-typedef struct cgltf_options
-{
- cgltf_file_type type; /* invalid == auto detect */
- cgltf_size json_token_count; /* 0 == auto */
- cgltf_memory_options memory;
- cgltf_file_options file;
-} cgltf_options;
-
-typedef enum cgltf_buffer_view_type
-{
- cgltf_buffer_view_type_invalid,
- cgltf_buffer_view_type_indices,
- cgltf_buffer_view_type_vertices,
-} cgltf_buffer_view_type;
-
-typedef enum cgltf_attribute_type
-{
- cgltf_attribute_type_invalid,
- cgltf_attribute_type_position,
- cgltf_attribute_type_normal,
- cgltf_attribute_type_tangent,
- cgltf_attribute_type_texcoord,
- cgltf_attribute_type_color,
- cgltf_attribute_type_joints,
- cgltf_attribute_type_weights,
-} cgltf_attribute_type;
-
-typedef enum cgltf_component_type
-{
- cgltf_component_type_invalid,
- cgltf_component_type_r_8, /* BYTE */
- cgltf_component_type_r_8u, /* UNSIGNED_BYTE */
- cgltf_component_type_r_16, /* SHORT */
- cgltf_component_type_r_16u, /* UNSIGNED_SHORT */
- cgltf_component_type_r_32u, /* UNSIGNED_INT */
- cgltf_component_type_r_32f, /* FLOAT */
-} cgltf_component_type;
-
-typedef enum cgltf_type
-{
- cgltf_type_invalid,
- cgltf_type_scalar,
- cgltf_type_vec2,
- cgltf_type_vec3,
- cgltf_type_vec4,
- cgltf_type_mat2,
- cgltf_type_mat3,
- cgltf_type_mat4,
-} cgltf_type;
-
-typedef enum cgltf_primitive_type
-{
- cgltf_primitive_type_points,
- cgltf_primitive_type_lines,
- cgltf_primitive_type_line_loop,
- cgltf_primitive_type_line_strip,
- cgltf_primitive_type_triangles,
- cgltf_primitive_type_triangle_strip,
- cgltf_primitive_type_triangle_fan,
-} cgltf_primitive_type;
-
-typedef enum cgltf_alpha_mode
-{
- cgltf_alpha_mode_opaque,
- cgltf_alpha_mode_mask,
- cgltf_alpha_mode_blend,
-} cgltf_alpha_mode;
-
-typedef enum cgltf_animation_path_type {
- cgltf_animation_path_type_invalid,
- cgltf_animation_path_type_translation,
- cgltf_animation_path_type_rotation,
- cgltf_animation_path_type_scale,
- cgltf_animation_path_type_weights,
-} cgltf_animation_path_type;
-
-typedef enum cgltf_interpolation_type {
- cgltf_interpolation_type_linear,
- cgltf_interpolation_type_step,
- cgltf_interpolation_type_cubic_spline,
-} cgltf_interpolation_type;
-
-typedef enum cgltf_camera_type {
- cgltf_camera_type_invalid,
- cgltf_camera_type_perspective,
- cgltf_camera_type_orthographic,
-} cgltf_camera_type;
-
-typedef enum cgltf_light_type {
- cgltf_light_type_invalid,
- cgltf_light_type_directional,
- cgltf_light_type_point,
- cgltf_light_type_spot,
-} cgltf_light_type;
-
-typedef struct cgltf_extras {
- cgltf_size start_offset;
- cgltf_size end_offset;
-} cgltf_extras;
-
-typedef struct cgltf_buffer
-{
- cgltf_size size;
- char* uri;
- void* data; /* loaded by cgltf_load_buffers */
- cgltf_extras extras;
-} cgltf_buffer;
-
-typedef struct cgltf_buffer_view
-{
- cgltf_buffer* buffer;
- cgltf_size offset;
- cgltf_size size;
- cgltf_size stride; /* 0 == automatically determined by accessor */
- cgltf_buffer_view_type type;
- cgltf_extras extras;
-} cgltf_buffer_view;
-
-typedef struct cgltf_accessor_sparse
-{
- cgltf_size count;
- cgltf_buffer_view* indices_buffer_view;
- cgltf_size indices_byte_offset;
- cgltf_component_type indices_component_type;
- cgltf_buffer_view* values_buffer_view;
- cgltf_size values_byte_offset;
- cgltf_extras extras;
- cgltf_extras indices_extras;
- cgltf_extras values_extras;
-} cgltf_accessor_sparse;
-
-typedef struct cgltf_accessor
-{
- cgltf_component_type component_type;
- cgltf_bool normalized;
- cgltf_type type;
- cgltf_size offset;
- cgltf_size count;
- cgltf_size stride;
- cgltf_buffer_view* buffer_view;
- cgltf_bool has_min;
- cgltf_float min[16];
- cgltf_bool has_max;
- cgltf_float max[16];
- cgltf_bool is_sparse;
- cgltf_accessor_sparse sparse;
- cgltf_extras extras;
-} cgltf_accessor;
-
-typedef struct cgltf_attribute
-{
- char* name;
- cgltf_attribute_type type;
- cgltf_int index;
- cgltf_accessor* data;
-} cgltf_attribute;
-
-typedef struct cgltf_image
-{
- char* name;
- char* uri;
- cgltf_buffer_view* buffer_view;
- char* mime_type;
- cgltf_extras extras;
-} cgltf_image;
-
-typedef struct cgltf_sampler
-{
- cgltf_int mag_filter;
- cgltf_int min_filter;
- cgltf_int wrap_s;
- cgltf_int wrap_t;
- cgltf_extras extras;
-} cgltf_sampler;
-
-typedef struct cgltf_texture
-{
- char* name;
- cgltf_image* image;
- cgltf_sampler* sampler;
- cgltf_extras extras;
-} cgltf_texture;
-
-typedef struct cgltf_texture_transform
-{
- cgltf_float offset[2];
- cgltf_float rotation;
- cgltf_float scale[2];
- cgltf_int texcoord;
-} cgltf_texture_transform;
-
-typedef struct cgltf_texture_view
-{
- cgltf_texture* texture;
- cgltf_int texcoord;
- cgltf_float scale; /* equivalent to strength for occlusion_texture */
- cgltf_bool has_transform;
- cgltf_texture_transform transform;
- cgltf_extras extras;
-} cgltf_texture_view;
-
-typedef struct cgltf_pbr_metallic_roughness
-{
- cgltf_texture_view base_color_texture;
- cgltf_texture_view metallic_roughness_texture;
-
- cgltf_float base_color_factor[4];
- cgltf_float metallic_factor;
- cgltf_float roughness_factor;
-
- cgltf_extras extras;
-} cgltf_pbr_metallic_roughness;
-
-typedef struct cgltf_pbr_specular_glossiness
-{
- cgltf_texture_view diffuse_texture;
- cgltf_texture_view specular_glossiness_texture;
-
- cgltf_float diffuse_factor[4];
- cgltf_float specular_factor[3];
- cgltf_float glossiness_factor;
-} cgltf_pbr_specular_glossiness;
-
-typedef struct cgltf_material
-{
- char* name;
- cgltf_bool has_pbr_metallic_roughness;
- cgltf_bool has_pbr_specular_glossiness;
- cgltf_pbr_metallic_roughness pbr_metallic_roughness;
- cgltf_pbr_specular_glossiness pbr_specular_glossiness;
- cgltf_texture_view normal_texture;
- cgltf_texture_view occlusion_texture;
- cgltf_texture_view emissive_texture;
- cgltf_float emissive_factor[3];
- cgltf_alpha_mode alpha_mode;
- cgltf_float alpha_cutoff;
- cgltf_bool double_sided;
- cgltf_bool unlit;
- cgltf_extras extras;
-} cgltf_material;
-
-typedef struct cgltf_morph_target {
- cgltf_attribute* attributes;
- cgltf_size attributes_count;
-} cgltf_morph_target;
-
-typedef struct cgltf_primitive {
- cgltf_primitive_type type;
- cgltf_accessor* indices;
- cgltf_material* material;
- cgltf_attribute* attributes;
- cgltf_size attributes_count;
- cgltf_morph_target* targets;
- cgltf_size targets_count;
- cgltf_extras extras;
-} cgltf_primitive;
-
-typedef struct cgltf_mesh {
- char* name;
- cgltf_primitive* primitives;
- cgltf_size primitives_count;
- cgltf_float* weights;
- cgltf_size weights_count;
- char** target_names;
- cgltf_size target_names_count;
- cgltf_extras extras;
-} cgltf_mesh;
-
-typedef struct cgltf_node cgltf_node;
-
-typedef struct cgltf_skin {
- char* name;
- cgltf_node** joints;
- cgltf_size joints_count;
- cgltf_node* skeleton;
- cgltf_accessor* inverse_bind_matrices;
- cgltf_extras extras;
-} cgltf_skin;
-
-typedef struct cgltf_camera_perspective {
- cgltf_float aspect_ratio;
- cgltf_float yfov;
- cgltf_float zfar;
- cgltf_float znear;
- cgltf_extras extras;
-} cgltf_camera_perspective;
-
-typedef struct cgltf_camera_orthographic {
- cgltf_float xmag;
- cgltf_float ymag;
- cgltf_float zfar;
- cgltf_float znear;
- cgltf_extras extras;
-} cgltf_camera_orthographic;
-
-typedef struct cgltf_camera {
- char* name;
- cgltf_camera_type type;
- union {
- cgltf_camera_perspective perspective;
- cgltf_camera_orthographic orthographic;
- } data;
- cgltf_extras extras;
-} cgltf_camera;
-
-typedef struct cgltf_light {
- char* name;
- cgltf_float color[3];
- cgltf_float intensity;
- cgltf_light_type type;
- cgltf_float range;
- cgltf_float spot_inner_cone_angle;
- cgltf_float spot_outer_cone_angle;
-} cgltf_light;
-
-struct cgltf_node {
- char* name;
- cgltf_node* parent;
- cgltf_node** children;
- cgltf_size children_count;
- cgltf_skin* skin;
- cgltf_mesh* mesh;
- cgltf_camera* camera;
- cgltf_light* light;
- cgltf_float* weights;
- cgltf_size weights_count;
- cgltf_bool has_translation;
- cgltf_bool has_rotation;
- cgltf_bool has_scale;
- cgltf_bool has_matrix;
- cgltf_float translation[3];
- cgltf_float rotation[4];
- cgltf_float scale[3];
- cgltf_float matrix[16];
- cgltf_extras extras;
-};
-
-typedef struct cgltf_scene {
- char* name;
- cgltf_node** nodes;
- cgltf_size nodes_count;
- cgltf_extras extras;
-} cgltf_scene;
-
-typedef struct cgltf_animation_sampler {
- cgltf_accessor* input;
- cgltf_accessor* output;
- cgltf_interpolation_type interpolation;
- cgltf_extras extras;
-} cgltf_animation_sampler;
-
-typedef struct cgltf_animation_channel {
- cgltf_animation_sampler* sampler;
- cgltf_node* target_node;
- cgltf_animation_path_type target_path;
- cgltf_extras extras;
-} cgltf_animation_channel;
-
-typedef struct cgltf_animation {
- char* name;
- cgltf_animation_sampler* samplers;
- cgltf_size samplers_count;
- cgltf_animation_channel* channels;
- cgltf_size channels_count;
- cgltf_extras extras;
-} cgltf_animation;
-
-typedef struct cgltf_asset {
- char* copyright;
- char* generator;
- char* version;
- char* min_version;
- cgltf_extras extras;
-} cgltf_asset;
-
-typedef struct cgltf_data
-{
- cgltf_file_type file_type;
- void* file_data;
-
- cgltf_asset asset;
-
- cgltf_mesh* meshes;
- cgltf_size meshes_count;
-
- cgltf_material* materials;
- cgltf_size materials_count;
-
- cgltf_accessor* accessors;
- cgltf_size accessors_count;
-
- cgltf_buffer_view* buffer_views;
- cgltf_size buffer_views_count;
-
- cgltf_buffer* buffers;
- cgltf_size buffers_count;
-
- cgltf_image* images;
- cgltf_size images_count;
-
- cgltf_texture* textures;
- cgltf_size textures_count;
-
- cgltf_sampler* samplers;
- cgltf_size samplers_count;
-
- cgltf_skin* skins;
- cgltf_size skins_count;
-
- cgltf_camera* cameras;
- cgltf_size cameras_count;
-
- cgltf_light* lights;
- cgltf_size lights_count;
-
- cgltf_node* nodes;
- cgltf_size nodes_count;
-
- cgltf_scene* scenes;
- cgltf_size scenes_count;
-
- cgltf_scene* scene;
-
- cgltf_animation* animations;
- cgltf_size animations_count;
-
- cgltf_extras extras;
-
- char** extensions_used;
- cgltf_size extensions_used_count;
-
- char** extensions_required;
- cgltf_size extensions_required_count;
-
- const char* json;
- cgltf_size json_size;
-
- const void* bin;
- cgltf_size bin_size;
-
- cgltf_memory_options memory;
- cgltf_file_options file;
-} cgltf_data;
-
-cgltf_result cgltf_parse(
- const cgltf_options* options,
- const void* data,
- cgltf_size size,
- cgltf_data** out_data);
-
-cgltf_result cgltf_parse_file(
- const cgltf_options* options,
- const char* path,
- cgltf_data** out_data);
-
-cgltf_result cgltf_load_buffers(
- const cgltf_options* options,
- cgltf_data* data,
- const char* gltf_path);
-
-
-cgltf_result cgltf_load_buffer_base64(const cgltf_options* options, cgltf_size size, const char* base64, void** out_data);
-
-cgltf_result cgltf_validate(cgltf_data* data);
-
-void cgltf_free(cgltf_data* data);
-
-void cgltf_node_transform_local(const cgltf_node* node, cgltf_float* out_matrix);
-void cgltf_node_transform_world(const cgltf_node* node, cgltf_float* out_matrix);
-
-cgltf_bool cgltf_accessor_read_float(const cgltf_accessor* accessor, cgltf_size index, cgltf_float* out, cgltf_size element_size);
-cgltf_bool cgltf_accessor_read_uint(const cgltf_accessor* accessor, cgltf_size index, cgltf_uint* out, cgltf_size element_size);
-cgltf_size cgltf_accessor_read_index(const cgltf_accessor* accessor, cgltf_size index);
-
-cgltf_size cgltf_num_components(cgltf_type type);
-
-cgltf_size cgltf_accessor_unpack_floats(const cgltf_accessor* accessor, cgltf_float* out, cgltf_size float_count);
-
-cgltf_result cgltf_copy_extras_json(const cgltf_data* data, const cgltf_extras* extras, char* dest, cgltf_size* dest_size);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* #ifndef CGLTF_H_INCLUDED__ */
-
-/*
- *
- * Stop now, if you are only interested in the API.
- * Below, you find the implementation.
- *
- */
-
-#ifdef __INTELLISENSE__
-/* This makes MSVC intellisense work. */
-#define CGLTF_IMPLEMENTATION
-#endif
-
-#ifdef CGLTF_IMPLEMENTATION
-
-#include <stdint.h> /* For uint8_t, uint32_t */
-#include <string.h> /* For strncpy */
-#include <stdio.h> /* For fopen */
-#include <limits.h> /* For UINT_MAX etc */
-
-#if !defined(CGLTF_MALLOC) || !defined(CGLTF_FREE) || !defined(CGLTF_ATOI) || !defined(CGLTF_ATOF)
-#include <stdlib.h> /* For malloc, free, atoi, atof */
-#endif
-
-/* JSMN_PARENT_LINKS is necessary to make parsing large structures linear in input size */
-#define JSMN_PARENT_LINKS
-
-/* JSMN_STRICT is necessary to reject invalid JSON documents */
-#define JSMN_STRICT
-
-/*
- * -- jsmn.h start --
- * Source: https://github.com/zserge/jsmn
- * License: MIT
- */
-typedef enum {
- JSMN_UNDEFINED = 0,
- JSMN_OBJECT = 1,
- JSMN_ARRAY = 2,
- JSMN_STRING = 3,
- JSMN_PRIMITIVE = 4
-} jsmntype_t;
-enum jsmnerr {
- /* Not enough tokens were provided */
- JSMN_ERROR_NOMEM = -1,
- /* Invalid character inside JSON string */
- JSMN_ERROR_INVAL = -2,
- /* The string is not a full JSON packet, more bytes expected */
- JSMN_ERROR_PART = -3
-};
-typedef struct {
- jsmntype_t type;
- int start;
- int end;
- int size;
-#ifdef JSMN_PARENT_LINKS
- int parent;
-#endif
-} jsmntok_t;
-typedef struct {
- unsigned int pos; /* offset in the JSON string */
- unsigned int toknext; /* next token to allocate */
- int toksuper; /* superior token node, e.g parent object or array */
-} jsmn_parser;
-static void jsmn_init(jsmn_parser *parser);
-static int jsmn_parse(jsmn_parser *parser, const char *js, size_t len, jsmntok_t *tokens, size_t num_tokens);
-/*
- * -- jsmn.h end --
- */
-
-
-static const cgltf_size GlbHeaderSize = 12;
-static const cgltf_size GlbChunkHeaderSize = 8;
-static const uint32_t GlbVersion = 2;
-static const uint32_t GlbMagic = 0x46546C67;
-static const uint32_t GlbMagicJsonChunk = 0x4E4F534A;
-static const uint32_t GlbMagicBinChunk = 0x004E4942;
-
-#ifndef CGLTF_MALLOC
-#define CGLTF_MALLOC(size) malloc(size)
-#endif
-#ifndef CGLTF_FREE
-#define CGLTF_FREE(ptr) free(ptr)
-#endif
-#ifndef CGLTF_ATOI
-#define CGLTF_ATOI(str) atoi(str)
-#endif
-#ifndef CGLTF_ATOF
-#define CGLTF_ATOF(str) atof(str)
-#endif
-
-static void* cgltf_default_alloc(void* user, cgltf_size size)
-{
- (void)user;
- return CGLTF_MALLOC(size);
-}
-
-static void cgltf_default_free(void* user, void* ptr)
-{
- (void)user;
- CGLTF_FREE(ptr);
-}
-
-static void* cgltf_calloc(cgltf_options* options, size_t element_size, cgltf_size count)
-{
- if (SIZE_MAX / element_size < count)
- {
- return NULL;
- }
- void* result = options->memory.alloc(options->memory.user_data, element_size * count);
- if (!result)
- {
- return NULL;
- }
- memset(result, 0, element_size * count);
- return result;
-}
-
-static cgltf_result cgltf_default_file_read(const struct cgltf_memory_options* memory_options, const struct cgltf_file_options* file_options, const char* path, cgltf_size* size, void** data)
-{
- (void)file_options;
- void* (*memory_alloc)(void*, cgltf_size) = memory_options->alloc ? memory_options->alloc : &cgltf_default_alloc;
- void (*memory_free)(void*, void*) = memory_options->free ? memory_options->free : &cgltf_default_free;
-
- FILE* file = fopen(path, "rb");
- if (!file)
- {
- return cgltf_result_file_not_found;
- }
-
- cgltf_size file_size = size ? *size : 0;
-
- if (file_size == 0)
- {
- fseek(file, 0, SEEK_END);
-
- long length = ftell(file);
- if (length < 0)
- {
- fclose(file);
- return cgltf_result_io_error;
- }
-
- fseek(file, 0, SEEK_SET);
- file_size = (cgltf_size)length;
- }
-
- char* file_data = (char*)memory_alloc(memory_options->user_data, file_size);
- if (!file_data)
- {
- fclose(file);
- return cgltf_result_out_of_memory;
- }
-
- cgltf_size read_size = fread(file_data, 1, file_size, file);
-
- fclose(file);
-
- if (read_size != file_size)
- {
- memory_free(memory_options->user_data, file_data);
- return cgltf_result_io_error;
- }
-
- if (size)
- {
- *size = file_size;
- }
- if (data)
- {
- *data = file_data;
- }
-
- return cgltf_result_success;
-}
-
-static void cgltf_default_file_release(const struct cgltf_memory_options* memory_options, const struct cgltf_file_options* file_options, void* data)
-{
- (void)file_options;
- void (*memfree)(void*, void*) = memory_options->free ? memory_options->free : &cgltf_default_free;
- memfree(memory_options->user_data, data);
-}
-
-static cgltf_result cgltf_parse_json(cgltf_options* options, const uint8_t* json_chunk, cgltf_size size, cgltf_data** out_data);
-
-cgltf_result cgltf_parse(const cgltf_options* options, const void* data, cgltf_size size, cgltf_data** out_data)
-{
- if (size < GlbHeaderSize)
- {
- return cgltf_result_data_too_short;
- }
-
- if (options == NULL)
- {
- return cgltf_result_invalid_options;
- }
-
- cgltf_options fixed_options = *options;
- if (fixed_options.memory.alloc == NULL)
- {
- fixed_options.memory.alloc = &cgltf_default_alloc;
- }
- if (fixed_options.memory.free == NULL)
- {
- fixed_options.memory.free = &cgltf_default_free;
- }
-
- uint32_t tmp;
- // Magic
- memcpy(&tmp, data, 4);
- if (tmp != GlbMagic)
- {
- if (fixed_options.type == cgltf_file_type_invalid)
- {
- fixed_options.type = cgltf_file_type_gltf;
- }
- else if (fixed_options.type == cgltf_file_type_glb)
- {
- return cgltf_result_unknown_format;
- }
- }
-
- if (fixed_options.type == cgltf_file_type_gltf)
- {
- cgltf_result json_result = cgltf_parse_json(&fixed_options, (const uint8_t*)data, size, out_data);
- if (json_result != cgltf_result_success)
- {
- return json_result;
- }
-
- (*out_data)->file_type = cgltf_file_type_gltf;
-
- return cgltf_result_success;
- }
-
- const uint8_t* ptr = (const uint8_t*)data;
- // Version
- memcpy(&tmp, ptr + 4, 4);
- uint32_t version = tmp;
- if (version != GlbVersion)
- {
- return version < GlbVersion ? cgltf_result_legacy_gltf : cgltf_result_unknown_format;
- }
-
- // Total length
- memcpy(&tmp, ptr + 8, 4);
- if (tmp > size)
- {
- return cgltf_result_data_too_short;
- }
-
- const uint8_t* json_chunk = ptr + GlbHeaderSize;
-
- if (GlbHeaderSize + GlbChunkHeaderSize > size)
- {
- return cgltf_result_data_too_short;
- }
-
- // JSON chunk: length
- uint32_t json_length;
- memcpy(&json_length, json_chunk, 4);
- if (GlbHeaderSize + GlbChunkHeaderSize + json_length > size)
- {
- return cgltf_result_data_too_short;
- }
-
- // JSON chunk: magic
- memcpy(&tmp, json_chunk + 4, 4);
- if (tmp != GlbMagicJsonChunk)
- {
- return cgltf_result_unknown_format;
- }
-
- json_chunk += GlbChunkHeaderSize;
-
- const void* bin = 0;
- cgltf_size bin_size = 0;
-
- if (GlbHeaderSize + GlbChunkHeaderSize + json_length + GlbChunkHeaderSize <= size)
- {
- // We can read another chunk
- const uint8_t* bin_chunk = json_chunk + json_length;
-
- // Bin chunk: length
- uint32_t bin_length;
- memcpy(&bin_length, bin_chunk, 4);
- if (GlbHeaderSize + GlbChunkHeaderSize + json_length + GlbChunkHeaderSize + bin_length > size)
- {
- return cgltf_result_data_too_short;
- }
-
- // Bin chunk: magic
- memcpy(&tmp, bin_chunk + 4, 4);
- if (tmp != GlbMagicBinChunk)
- {
- return cgltf_result_unknown_format;
- }
-
- bin_chunk += GlbChunkHeaderSize;
-
- bin = bin_chunk;
- bin_size = bin_length;
- }
-
- cgltf_result json_result = cgltf_parse_json(&fixed_options, json_chunk, json_length, out_data);
- if (json_result != cgltf_result_success)
- {
- return json_result;
- }
-
- (*out_data)->file_type = cgltf_file_type_glb;
- (*out_data)->bin = bin;
- (*out_data)->bin_size = bin_size;
-
- return cgltf_result_success;
-}
-
-cgltf_result cgltf_parse_file(const cgltf_options* options, const char* path, cgltf_data** out_data)
-{
- if (options == NULL)
- {
- return cgltf_result_invalid_options;
- }
-
- void* (*memory_alloc)(void*, cgltf_size) = options->memory.alloc ? options->memory.alloc : &cgltf_default_alloc;
- void (*memory_free)(void*, void*) = options->memory.free ? options->memory.free : &cgltf_default_free;
- cgltf_result (*file_read)(const struct cgltf_memory_options*, const struct cgltf_file_options*, const char*, cgltf_size*, void**) = options->file.read ? options->file.read : &cgltf_default_file_read;
-
- void* file_data = NULL;
- cgltf_size file_size = 0;
- cgltf_result result = file_read(&options->memory, &options->file, path, &file_size, &file_data);
- if (result != cgltf_result_success)
- {
- return result;
- }
-
- result = cgltf_parse(options, file_data, file_size, out_data);
-
- if (result != cgltf_result_success)
- {
- memory_free(options->memory.user_data, file_data);
- return result;
- }
-
- (*out_data)->file_data = file_data;
-
- return cgltf_result_success;
-}
-
-static void cgltf_combine_paths(char* path, const char* base, const char* uri)
-{
- const char* s0 = strrchr(base, '/');
- const char* s1 = strrchr(base, '\\');
- const char* slash = s0 ? (s1 && s1 > s0 ? s1 : s0) : s1;
-
- if (slash)
- {
- size_t prefix = slash - base + 1;
-
- strncpy(path, base, prefix);
- strcpy(path + prefix, uri);
- }
- else
- {
- strcpy(path, uri);
- }
-}
-
-static cgltf_result cgltf_load_buffer_file(const cgltf_options* options, cgltf_size size, const char* uri, const char* gltf_path, void** out_data)
-{
- void* (*memory_alloc)(void*, cgltf_size) = options->memory.alloc ? options->memory.alloc : &cgltf_default_alloc;
- void (*memory_free)(void*, void*) = options->memory.free ? options->memory.free : &cgltf_default_free;
- cgltf_result (*file_read)(const struct cgltf_memory_options*, const struct cgltf_file_options*, const char*, cgltf_size*, void**) = options->file.read ? options->file.read : &cgltf_default_file_read;
-
- char* path = (char*)memory_alloc(options->memory.user_data, strlen(uri) + strlen(gltf_path) + 1);
- if (!path)
- {
- return cgltf_result_out_of_memory;
- }
-
- cgltf_combine_paths(path, gltf_path, uri);
-
- void* file_data = NULL;
- cgltf_result result = file_read(&options->memory, &options->file, path, &size, &file_data);
- if (result != cgltf_result_success)
- {
- return result;
- }
-
- *out_data = file_data;
-
- return cgltf_result_success;
-}
-
-cgltf_result cgltf_load_buffer_base64(const cgltf_options* options, cgltf_size size, const char* base64, void** out_data)
-{
- void* (*memory_alloc)(void*, cgltf_size) = options->memory.alloc ? options->memory.alloc : &cgltf_default_alloc;
- void (*memory_free)(void*, void*) = options->memory.free ? options->memory.free : &cgltf_default_free;
-
- unsigned char* data = (unsigned char*)memory_alloc(options->memory.user_data, size);
- if (!data)
- {
- return cgltf_result_out_of_memory;
- }
-
- unsigned int buffer = 0;
- unsigned int buffer_bits = 0;
-
- for (cgltf_size i = 0; i < size; ++i)
- {
- while (buffer_bits < 8)
- {
- char ch = *base64++;
-
- int index =
- (unsigned)(ch - 'A') < 26 ? (ch - 'A') :
- (unsigned)(ch - 'a') < 26 ? (ch - 'a') + 26 :
- (unsigned)(ch - '0') < 10 ? (ch - '0') + 52 :
- ch == '+' ? 62 :
- ch == '/' ? 63 :
- -1;
-
- if (index < 0)
- {
- memory_free(options->memory.user_data, data);
- return cgltf_result_io_error;
- }
-
- buffer = (buffer << 6) | index;
- buffer_bits += 6;
- }
-
- data[i] = (unsigned char)(buffer >> (buffer_bits - 8));
- buffer_bits -= 8;
- }
-
- *out_data = data;
-
- return cgltf_result_success;
-}
-
-cgltf_result cgltf_load_buffers(const cgltf_options* options, cgltf_data* data, const char* gltf_path)
-{
- if (options == NULL)
- {
- return cgltf_result_invalid_options;
- }
-
- if (data->buffers_count && data->buffers[0].data == NULL && data->buffers[0].uri == NULL && data->bin)
- {
- if (data->bin_size < data->buffers[0].size)
- {
- return cgltf_result_data_too_short;
- }
-
- data->buffers[0].data = (void*)data->bin;
- }
-
- for (cgltf_size i = 0; i < data->buffers_count; ++i)
- {
- if (data->buffers[i].data)
- {
- continue;
- }
-
- const char* uri = data->buffers[i].uri;
-
- if (uri == NULL)
- {
- continue;
- }
-
- if (strncmp(uri, "data:", 5) == 0)
- {
- const char* comma = strchr(uri, ',');
-
- if (comma && comma - uri >= 7 && strncmp(comma - 7, ";base64", 7) == 0)
- {
- cgltf_result res = cgltf_load_buffer_base64(options, data->buffers[i].size, comma + 1, &data->buffers[i].data);
-
- if (res != cgltf_result_success)
- {
- return res;
- }
- }
- else
- {
- return cgltf_result_unknown_format;
- }
- }
- else if (strstr(uri, "://") == NULL && gltf_path)
- {
- cgltf_result res = cgltf_load_buffer_file(options, data->buffers[i].size, uri, gltf_path, &data->buffers[i].data);
-
- if (res != cgltf_result_success)
- {
- return res;
- }
- }
- else
- {
- return cgltf_result_unknown_format;
- }
- }
-
- return cgltf_result_success;
-}
-
-static cgltf_size cgltf_calc_size(cgltf_type type, cgltf_component_type component_type);
-
-static cgltf_size cgltf_calc_index_bound(cgltf_buffer_view* buffer_view, cgltf_size offset, cgltf_component_type component_type, cgltf_size count)
-{
- char* data = (char*)buffer_view->buffer->data + offset + buffer_view->offset;
- cgltf_size bound = 0;
-
- switch (component_type)
- {
- case cgltf_component_type_r_8u:
- for (size_t i = 0; i < count; ++i)
- {
- cgltf_size v = ((unsigned char*)data)[i];
- bound = bound > v ? bound : v;
- }
- break;
-
- case cgltf_component_type_r_16u:
- for (size_t i = 0; i < count; ++i)
- {
- cgltf_size v = ((unsigned short*)data)[i];
- bound = bound > v ? bound : v;
- }
- break;
-
- case cgltf_component_type_r_32u:
- for (size_t i = 0; i < count; ++i)
- {
- cgltf_size v = ((unsigned int*)data)[i];
- bound = bound > v ? bound : v;
- }
- break;
-
- default:
- ;
- }
-
- return bound;
-}
-
-cgltf_result cgltf_validate(cgltf_data* data)
-{
- for (cgltf_size i = 0; i < data->accessors_count; ++i)
- {
- cgltf_accessor* accessor = &data->accessors[i];
-
- cgltf_size element_size = cgltf_calc_size(accessor->type, accessor->component_type);
-
- if (accessor->buffer_view)
- {
- cgltf_size req_size = accessor->offset + accessor->stride * (accessor->count - 1) + element_size;
-
- if (accessor->buffer_view->size < req_size)
- {
- return cgltf_result_data_too_short;
- }
- }
-
- if (accessor->is_sparse)
- {
- cgltf_accessor_sparse* sparse = &accessor->sparse;
-
- cgltf_size indices_component_size = cgltf_calc_size(cgltf_type_scalar, sparse->indices_component_type);
- cgltf_size indices_req_size = sparse->indices_byte_offset + indices_component_size * sparse->count;
- cgltf_size values_req_size = sparse->values_byte_offset + element_size * sparse->count;
-
- if (sparse->indices_buffer_view->size < indices_req_size ||
- sparse->values_buffer_view->size < values_req_size)
- {
- return cgltf_result_data_too_short;
- }
-
- if (sparse->indices_component_type != cgltf_component_type_r_8u &&
- sparse->indices_component_type != cgltf_component_type_r_16u &&
- sparse->indices_component_type != cgltf_component_type_r_32u)
- {
- return cgltf_result_invalid_gltf;
- }
-
- if (sparse->indices_buffer_view->buffer->data)
- {
- cgltf_size index_bound = cgltf_calc_index_bound(sparse->indices_buffer_view, sparse->indices_byte_offset, sparse->indices_component_type, sparse->count);
-
- if (index_bound >= accessor->count)
- {
- return cgltf_result_data_too_short;
- }
- }
- }
- }
-
- for (cgltf_size i = 0; i < data->buffer_views_count; ++i)
- {
- cgltf_size req_size = data->buffer_views[i].offset + data->buffer_views[i].size;
-
- if (data->buffer_views[i].buffer && data->buffer_views[i].buffer->size < req_size)
- {
- return cgltf_result_data_too_short;
- }
- }
-
- for (cgltf_size i = 0; i < data->meshes_count; ++i)
- {
- if (data->meshes[i].weights)
- {
- if (data->meshes[i].primitives_count && data->meshes[i].primitives[0].targets_count != data->meshes[i].weights_count)
- {
- return cgltf_result_invalid_gltf;
- }
- }
-
- if (data->meshes[i].target_names)
- {
- if (data->meshes[i].primitives_count && data->meshes[i].primitives[0].targets_count != data->meshes[i].target_names_count)
- {
- return cgltf_result_invalid_gltf;
- }
- }
-
- for (cgltf_size j = 0; j < data->meshes[i].primitives_count; ++j)
- {
- if (data->meshes[i].primitives[j].targets_count != data->meshes[i].primitives[0].targets_count)
- {
- return cgltf_result_invalid_gltf;
- }
-
- if (data->meshes[i].primitives[j].attributes_count)
- {
- cgltf_accessor* first = data->meshes[i].primitives[j].attributes[0].data;
-
- for (cgltf_size k = 0; k < data->meshes[i].primitives[j].attributes_count; ++k)
- {
- if (data->meshes[i].primitives[j].attributes[k].data->count != first->count)
- {
- return cgltf_result_invalid_gltf;
- }
- }
-
- for (cgltf_size k = 0; k < data->meshes[i].primitives[j].targets_count; ++k)
- {
- for (cgltf_size m = 0; m < data->meshes[i].primitives[j].targets[k].attributes_count; ++m)
- {
- if (data->meshes[i].primitives[j].targets[k].attributes[m].data->count != first->count)
- {
- return cgltf_result_invalid_gltf;
- }
- }
- }
-
- cgltf_accessor* indices = data->meshes[i].primitives[j].indices;
-
- if (indices &&
- indices->component_type != cgltf_component_type_r_8u &&
- indices->component_type != cgltf_component_type_r_16u &&
- indices->component_type != cgltf_component_type_r_32u)
- {
- return cgltf_result_invalid_gltf;
- }
-
- if (indices && indices->buffer_view && indices->buffer_view->buffer->data)
- {
- cgltf_size index_bound = cgltf_calc_index_bound(indices->buffer_view, indices->offset, indices->component_type, indices->count);
-
- if (index_bound >= first->count)
- {
- return cgltf_result_data_too_short;
- }
- }
- }
- }
- }
-
- for (cgltf_size i = 0; i < data->nodes_count; ++i)
- {
- if (data->nodes[i].weights && data->nodes[i].mesh)
- {
- if (data->nodes[i].mesh->primitives_count && data->nodes[i].mesh->primitives[0].targets_count != data->nodes[i].weights_count)
- {
- return cgltf_result_invalid_gltf;
- }
- }
- }
-
- for (cgltf_size i = 0; i < data->nodes_count; ++i)
- {
- cgltf_node* p1 = data->nodes[i].parent;
- cgltf_node* p2 = p1 ? p1->parent : NULL;
-
- while (p1 && p2)
- {
- if (p1 == p2)
- {
- return cgltf_result_invalid_gltf;
- }
-
- p1 = p1->parent;
- p2 = p2->parent ? p2->parent->parent : NULL;
- }
- }
-
- for (cgltf_size i = 0; i < data->scenes_count; ++i)
- {
- for (cgltf_size j = 0; j < data->scenes[i].nodes_count; ++j)
- {
- if (data->scenes[i].nodes[j]->parent)
- {
- return cgltf_result_invalid_gltf;
- }
- }
- }
-
- for (cgltf_size i = 0; i < data->animations_count; ++i)
- {
- for (cgltf_size j = 0; j < data->animations[i].channels_count; ++j)
- {
- cgltf_animation_channel* channel = &data->animations[i].channels[j];
-
- if (!channel->target_node)
- {
- continue;
- }
-
- cgltf_size components = 1;
-
- if (channel->target_path == cgltf_animation_path_type_weights)
- {
- if (!channel->target_node->mesh || !channel->target_node->mesh->primitives_count)
- {
- return cgltf_result_invalid_gltf;
- }
-
- components = channel->target_node->mesh->primitives[0].targets_count;
- }
-
- cgltf_size values = channel->sampler->interpolation == cgltf_interpolation_type_cubic_spline ? 3 : 1;
-
- if (channel->sampler->input->count * components * values != channel->sampler->output->count)
- {
- return cgltf_result_data_too_short;
- }
- }
- }
-
- return cgltf_result_success;
-}
-
-cgltf_result cgltf_copy_extras_json(const cgltf_data* data, const cgltf_extras* extras, char* dest, cgltf_size* dest_size)
-{
- cgltf_size json_size = extras->end_offset - extras->start_offset;
-
- if (!dest)
- {
- if (dest_size)
- {
- *dest_size = json_size + 1;
- return cgltf_result_success;
- }
- return cgltf_result_invalid_options;
- }
-
- if (*dest_size + 1 < json_size)
- {
- strncpy(dest, data->json + extras->start_offset, *dest_size - 1);
- dest[*dest_size - 1] = 0;
- }
- else
- {
- strncpy(dest, data->json + extras->start_offset, json_size);
- dest[json_size] = 0;
- }
-
- return cgltf_result_success;
-}
-
-void cgltf_free(cgltf_data* data)
-{
- if (!data)
- {
- return;
- }
-
- void (*file_release)(const struct cgltf_memory_options*, const struct cgltf_file_options*, void* data) = data->file.release ? data->file.release : cgltf_default_file_release;
-
- data->memory.free(data->memory.user_data, data->asset.copyright);
- data->memory.free(data->memory.user_data, data->asset.generator);
- data->memory.free(data->memory.user_data, data->asset.version);
- data->memory.free(data->memory.user_data, data->asset.min_version);
-
- data->memory.free(data->memory.user_data, data->accessors);
- data->memory.free(data->memory.user_data, data->buffer_views);
-
- for (cgltf_size i = 0; i < data->buffers_count; ++i)
- {
- if (data->buffers[i].data != data->bin)
- {
- file_release(&data->memory, &data->file, data->buffers[i].data);
- }
-
- data->memory.free(data->memory.user_data, data->buffers[i].uri);
- }
-
- data->memory.free(data->memory.user_data, data->buffers);
-
- for (cgltf_size i = 0; i < data->meshes_count; ++i)
- {
- data->memory.free(data->memory.user_data, data->meshes[i].name);
-
- for (cgltf_size j = 0; j < data->meshes[i].primitives_count; ++j)
- {
- for (cgltf_size k = 0; k < data->meshes[i].primitives[j].attributes_count; ++k)
- {
- data->memory.free(data->memory.user_data, data->meshes[i].primitives[j].attributes[k].name);
- }
-
- data->memory.free(data->memory.user_data, data->meshes[i].primitives[j].attributes);
-
- for (cgltf_size k = 0; k < data->meshes[i].primitives[j].targets_count; ++k)
- {
- for (cgltf_size m = 0; m < data->meshes[i].primitives[j].targets[k].attributes_count; ++m)
- {
- data->memory.free(data->memory.user_data, data->meshes[i].primitives[j].targets[k].attributes[m].name);
- }
-
- data->memory.free(data->memory.user_data, data->meshes[i].primitives[j].targets[k].attributes);
- }
-
- data->memory.free(data->memory.user_data, data->meshes[i].primitives[j].targets);
- }
-
- data->memory.free(data->memory.user_data, data->meshes[i].primitives);
- data->memory.free(data->memory.user_data, data->meshes[i].weights);
-
- for (cgltf_size j = 0; j < data->meshes[i].target_names_count; ++j)
- {
- data->memory.free(data->memory.user_data, data->meshes[i].target_names[j]);
- }
-
- data->memory.free(data->memory.user_data, data->meshes[i].target_names);
- }
-
- data->memory.free(data->memory.user_data, data->meshes);
-
- for (cgltf_size i = 0; i < data->materials_count; ++i)
- {
- data->memory.free(data->memory.user_data, data->materials[i].name);
- }
-
- data->memory.free(data->memory.user_data, data->materials);
-
- for (cgltf_size i = 0; i < data->images_count; ++i)
- {
- data->memory.free(data->memory.user_data, data->images[i].name);
- data->memory.free(data->memory.user_data, data->images[i].uri);
- data->memory.free(data->memory.user_data, data->images[i].mime_type);
- }
-
- data->memory.free(data->memory.user_data, data->images);
-
- for (cgltf_size i = 0; i < data->textures_count; ++i)
- {
- data->memory.free(data->memory.user_data, data->textures[i].name);
- }
-
- data->memory.free(data->memory.user_data, data->textures);
-
- data->memory.free(data->memory.user_data, data->samplers);
-
- for (cgltf_size i = 0; i < data->skins_count; ++i)
- {
- data->memory.free(data->memory.user_data, data->skins[i].name);
- data->memory.free(data->memory.user_data, data->skins[i].joints);
- }
-
- data->memory.free(data->memory.user_data, data->skins);
-
- for (cgltf_size i = 0; i < data->cameras_count; ++i)
- {
- data->memory.free(data->memory.user_data, data->cameras[i].name);
- }
-
- data->memory.free(data->memory.user_data, data->cameras);
-
- for (cgltf_size i = 0; i < data->lights_count; ++i)
- {
- data->memory.free(data->memory.user_data, data->lights[i].name);
- }
-
- data->memory.free(data->memory.user_data, data->lights);
-
- for (cgltf_size i = 0; i < data->nodes_count; ++i)
- {
- data->memory.free(data->memory.user_data, data->nodes[i].name);
- data->memory.free(data->memory.user_data, data->nodes[i].children);
- data->memory.free(data->memory.user_data, data->nodes[i].weights);
- }
-
- data->memory.free(data->memory.user_data, data->nodes);
-
- for (cgltf_size i = 0; i < data->scenes_count; ++i)
- {
- data->memory.free(data->memory.user_data, data->scenes[i].name);
- data->memory.free(data->memory.user_data, data->scenes[i].nodes);
- }
-
- data->memory.free(data->memory.user_data, data->scenes);
-
- for (cgltf_size i = 0; i < data->animations_count; ++i)
- {
- data->memory.free(data->memory.user_data, data->animations[i].name);
- data->memory.free(data->memory.user_data, data->animations[i].samplers);
- data->memory.free(data->memory.user_data, data->animations[i].channels);
- }
-
- data->memory.free(data->memory.user_data, data->animations);
-
- for (cgltf_size i = 0; i < data->extensions_used_count; ++i)
- {
- data->memory.free(data->memory.user_data, data->extensions_used[i]);
- }
-
- data->memory.free(data->memory.user_data, data->extensions_used);
-
- for (cgltf_size i = 0; i < data->extensions_required_count; ++i)
- {
- data->memory.free(data->memory.user_data, data->extensions_required[i]);
- }
-
- data->memory.free(data->memory.user_data, data->extensions_required);
-
- file_release(&data->memory, &data->file, data->file_data);
-
- data->memory.free(data->memory.user_data, data);
-}
-
-void cgltf_node_transform_local(const cgltf_node* node, cgltf_float* out_matrix)
-{
- cgltf_float* lm = out_matrix;
-
- if (node->has_matrix)
- {
- memcpy(lm, node->matrix, sizeof(float) * 16);
- }
- else
- {
- float tx = node->translation[0];
- float ty = node->translation[1];
- float tz = node->translation[2];
-
- float qx = node->rotation[0];
- float qy = node->rotation[1];
- float qz = node->rotation[2];
- float qw = node->rotation[3];
-
- float sx = node->scale[0];
- float sy = node->scale[1];
- float sz = node->scale[2];
-
- lm[0] = (1 - 2 * qy*qy - 2 * qz*qz) * sx;
- lm[1] = (2 * qx*qy + 2 * qz*qw) * sx;
- lm[2] = (2 * qx*qz - 2 * qy*qw) * sx;
- lm[3] = 0.f;
-
- lm[4] = (2 * qx*qy - 2 * qz*qw) * sy;
- lm[5] = (1 - 2 * qx*qx - 2 * qz*qz) * sy;
- lm[6] = (2 * qy*qz + 2 * qx*qw) * sy;
- lm[7] = 0.f;
-
- lm[8] = (2 * qx*qz + 2 * qy*qw) * sz;
- lm[9] = (2 * qy*qz - 2 * qx*qw) * sz;
- lm[10] = (1 - 2 * qx*qx - 2 * qy*qy) * sz;
- lm[11] = 0.f;
-
- lm[12] = tx;
- lm[13] = ty;
- lm[14] = tz;
- lm[15] = 1.f;
- }
-}
-
-void cgltf_node_transform_world(const cgltf_node* node, cgltf_float* out_matrix)
-{
- cgltf_float* lm = out_matrix;
- cgltf_node_transform_local(node, lm);
-
- const cgltf_node* parent = node->parent;
-
- while (parent)
- {
- float pm[16];
- cgltf_node_transform_local(parent, pm);
-
- for (int i = 0; i < 4; ++i)
- {
- float l0 = lm[i * 4 + 0];
- float l1 = lm[i * 4 + 1];
- float l2 = lm[i * 4 + 2];
-
- float r0 = l0 * pm[0] + l1 * pm[4] + l2 * pm[8];
- float r1 = l0 * pm[1] + l1 * pm[5] + l2 * pm[9];
- float r2 = l0 * pm[2] + l1 * pm[6] + l2 * pm[10];
-
- lm[i * 4 + 0] = r0;
- lm[i * 4 + 1] = r1;
- lm[i * 4 + 2] = r2;
- }
-
- lm[12] += pm[12];
- lm[13] += pm[13];
- lm[14] += pm[14];
-
- parent = parent->parent;
- }
-}
-
-static cgltf_size cgltf_component_read_index(const void* in, cgltf_component_type component_type)
-{
- switch (component_type)
- {
- case cgltf_component_type_r_16:
- return *((const int16_t*) in);
- case cgltf_component_type_r_16u:
- return *((const uint16_t*) in);
- case cgltf_component_type_r_32u:
- return *((const uint32_t*) in);
- case cgltf_component_type_r_32f:
- return (cgltf_size)*((const float*) in);
- case cgltf_component_type_r_8:
- return *((const int8_t*) in);
- case cgltf_component_type_r_8u:
- return *((const uint8_t*) in);
- default:
- return 0;
- }
-}
-
-static cgltf_float cgltf_component_read_float(const void* in, cgltf_component_type component_type, cgltf_bool normalized)
-{
- if (component_type == cgltf_component_type_r_32f)
- {
- return *((const float*) in);
- }
-
- if (normalized)
- {
- switch (component_type)
- {
- // note: glTF spec doesn't currently define normalized conversions for 32-bit integers
- case cgltf_component_type_r_16:
- return *((const int16_t*) in) / (cgltf_float)32767;
- case cgltf_component_type_r_16u:
- return *((const uint16_t*) in) / (cgltf_float)65535;
- case cgltf_component_type_r_8:
- return *((const int8_t*) in) / (cgltf_float)127;
- case cgltf_component_type_r_8u:
- return *((const uint8_t*) in) / (cgltf_float)255;
- default:
- return 0;
- }
- }
-
- return (cgltf_float)cgltf_component_read_index(in, component_type);
-}
-
-static cgltf_size cgltf_component_size(cgltf_component_type component_type);
-
-static cgltf_bool cgltf_element_read_float(const uint8_t* element, cgltf_type type, cgltf_component_type component_type, cgltf_bool normalized, cgltf_float* out, cgltf_size element_size)
-{
- cgltf_size num_components = cgltf_num_components(type);
-
- if (element_size < num_components) {
- return 0;
- }
-
- // There are three special cases for component extraction, see #data-alignment in the 2.0 spec.
-
- cgltf_size component_size = cgltf_component_size(component_type);
-
- if (type == cgltf_type_mat2 && component_size == 1)
- {
- out[0] = cgltf_component_read_float(element, component_type, normalized);
- out[1] = cgltf_component_read_float(element + 1, component_type, normalized);
- out[2] = cgltf_component_read_float(element + 4, component_type, normalized);
- out[3] = cgltf_component_read_float(element + 5, component_type, normalized);
- return 1;
- }
-
- if (type == cgltf_type_mat3 && component_size == 1)
- {
- out[0] = cgltf_component_read_float(element, component_type, normalized);
- out[1] = cgltf_component_read_float(element + 1, component_type, normalized);
- out[2] = cgltf_component_read_float(element + 2, component_type, normalized);
- out[3] = cgltf_component_read_float(element + 4, component_type, normalized);
- out[4] = cgltf_component_read_float(element + 5, component_type, normalized);
- out[5] = cgltf_component_read_float(element + 6, component_type, normalized);
- out[6] = cgltf_component_read_float(element + 8, component_type, normalized);
- out[7] = cgltf_component_read_float(element + 9, component_type, normalized);
- out[8] = cgltf_component_read_float(element + 10, component_type, normalized);
- return 1;
- }
-
- if (type == cgltf_type_mat3 && component_size == 2)
- {
- out[0] = cgltf_component_read_float(element, component_type, normalized);
- out[1] = cgltf_component_read_float(element + 2, component_type, normalized);
- out[2] = cgltf_component_read_float(element + 4, component_type, normalized);
- out[3] = cgltf_component_read_float(element + 8, component_type, normalized);
- out[4] = cgltf_component_read_float(element + 10, component_type, normalized);
- out[5] = cgltf_component_read_float(element + 12, component_type, normalized);
- out[6] = cgltf_component_read_float(element + 16, component_type, normalized);
- out[7] = cgltf_component_read_float(element + 18, component_type, normalized);
- out[8] = cgltf_component_read_float(element + 20, component_type, normalized);
- return 1;
- }
-
- for (cgltf_size i = 0; i < num_components; ++i)
- {
- out[i] = cgltf_component_read_float(element + component_size * i, component_type, normalized);
- }
- return 1;
-}
-
-cgltf_bool cgltf_accessor_read_float(const cgltf_accessor* accessor, cgltf_size index, cgltf_float* out, cgltf_size element_size)
-{
- if (accessor->is_sparse)
- {
- return 0;
- }
- if (accessor->buffer_view == NULL)
- {
- memset(out, 0, element_size * sizeof(cgltf_float));
- return 1;
- }
- if (accessor->buffer_view->buffer->data == NULL)
- {
- return 0;
- }
- cgltf_size offset = accessor->offset + accessor->buffer_view->offset;
- const uint8_t* element = (const uint8_t*) accessor->buffer_view->buffer->data;
- element += offset + accessor->stride * index;
- return cgltf_element_read_float(element, accessor->type, accessor->component_type, accessor->normalized, out, element_size);
-}
-
-cgltf_size cgltf_accessor_unpack_floats(const cgltf_accessor* accessor, cgltf_float* out, cgltf_size float_count)
-{
- cgltf_size floats_per_element = cgltf_num_components(accessor->type);
- cgltf_size available_floats = accessor->count * floats_per_element;
- if (out == NULL)
- {
- return available_floats;
- }
-
- float_count = available_floats < float_count ? available_floats : float_count;
- cgltf_size element_count = float_count / floats_per_element;
-
- // First pass: convert each element in the base accessor.
- cgltf_float* dest = out;
- cgltf_accessor dense = *accessor;
- dense.is_sparse = 0;
- for (cgltf_size index = 0; index < element_count; index++, dest += floats_per_element)
- {
- if (!cgltf_accessor_read_float(&dense, index, dest, floats_per_element))
- {
- return 0;
- }
- }
-
- // Second pass: write out each element in the sparse accessor.
- if (accessor->is_sparse)
- {
- const cgltf_accessor_sparse* sparse = &dense.sparse;
-
- if (sparse->indices_buffer_view->buffer->data == NULL || sparse->values_buffer_view->buffer->data == NULL)
- {
- return 0;
- }
-
- const uint8_t* index_data = (const uint8_t*) sparse->indices_buffer_view->buffer->data;
- index_data += sparse->indices_byte_offset + sparse->indices_buffer_view->offset;
- cgltf_size index_stride = cgltf_component_size(sparse->indices_component_type);
- const uint8_t* reader_head = (const uint8_t*) sparse->values_buffer_view->buffer->data;
- reader_head += sparse->values_byte_offset + sparse->values_buffer_view->offset;
- for (cgltf_size reader_index = 0; reader_index < sparse->count; reader_index++, index_data += index_stride)
- {
- size_t writer_index = cgltf_component_read_index(index_data, sparse->indices_component_type);
- float* writer_head = out + writer_index * floats_per_element;
-
- if (!cgltf_element_read_float(reader_head, dense.type, dense.component_type, dense.normalized, writer_head, floats_per_element))
- {
- return 0;
- }
-
- reader_head += dense.stride;
- }
- }
-
- return element_count * floats_per_element;
-}
-
-static cgltf_uint cgltf_component_read_uint(const void* in, cgltf_component_type component_type)
-{
- switch (component_type)
- {
- case cgltf_component_type_r_8:
- return *((const int8_t*) in);
-
- case cgltf_component_type_r_8u:
- return *((const uint8_t*) in);
-
- case cgltf_component_type_r_16:
- return *((const int16_t*) in);
-
- case cgltf_component_type_r_16u:
- return *((const uint16_t*) in);
-
- case cgltf_component_type_r_32u:
- return *((const uint32_t*) in);
-
- default:
- return 0;
- }
-
- return 0;
-}
-
-static cgltf_bool cgltf_element_read_uint(const uint8_t* element, cgltf_type type, cgltf_component_type component_type, cgltf_uint* out, cgltf_size element_size)
-{
- cgltf_size num_components = cgltf_num_components(type);
-
- if (element_size < num_components)
- {
- return 0;
- }
-
- // Reading integer matrices is not a valid use case
- if (type == cgltf_type_mat2 || type == cgltf_type_mat3 || type == cgltf_type_mat4)
- {
- return 0;
- }
-
- cgltf_size component_size = cgltf_component_size(component_type);
-
- for (cgltf_size i = 0; i < num_components; ++i)
- {
- out[i] = cgltf_component_read_uint(element + component_size * i, component_type);
- }
- return 1;
-}
-
-cgltf_bool cgltf_accessor_read_uint(const cgltf_accessor* accessor, cgltf_size index, cgltf_uint* out, cgltf_size element_size)
-{
- if (accessor->is_sparse)
- {
- return 0;
- }
- if (accessor->buffer_view == NULL)
- {
- memset(out, 0, element_size * sizeof( cgltf_uint ));
- return 1;
- }
- if (accessor->buffer_view->buffer->data == NULL)
- {
- return 0;
- }
- cgltf_size offset = accessor->offset + accessor->buffer_view->offset;
- const uint8_t* element = (const uint8_t*) accessor->buffer_view->buffer->data;
- element += offset + accessor->stride * index;
- return cgltf_element_read_uint(element, accessor->type, accessor->component_type, out, element_size);
-}
-
-cgltf_size cgltf_accessor_read_index(const cgltf_accessor* accessor, cgltf_size index)
-{
- if (accessor->is_sparse)
- {
- return 0; // This is an error case, but we can't communicate the error with existing interface.
- }
- if (accessor->buffer_view == NULL)
- {
- return 0;
- }
- if (accessor->buffer_view->buffer->data == NULL)
- {
- return 0; // This is an error case, but we can't communicate the error with existing interface.
- }
-
- cgltf_size offset = accessor->offset + accessor->buffer_view->offset;
- const uint8_t* element = (const uint8_t*) accessor->buffer_view->buffer->data;
- element += offset + accessor->stride * index;
- return cgltf_component_read_index(element, accessor->component_type);
-}
-
-#define CGLTF_ERROR_JSON -1
-#define CGLTF_ERROR_NOMEM -2
-#define CGLTF_ERROR_LEGACY -3
-
-#define CGLTF_CHECK_TOKTYPE(tok_, type_) if ((tok_).type != (type_)) { return CGLTF_ERROR_JSON; }
-#define CGLTF_CHECK_KEY(tok_) if ((tok_).type != JSMN_STRING || (tok_).size == 0) { return CGLTF_ERROR_JSON; } /* checking size for 0 verifies that a value follows the key */
-
-#define CGLTF_PTRINDEX(type, idx) (type*)((cgltf_size)idx + 1)
-#define CGLTF_PTRFIXUP(var, data, size) if (var) { if ((cgltf_size)var > size) { return CGLTF_ERROR_JSON; } var = &data[(cgltf_size)var-1]; }
-#define CGLTF_PTRFIXUP_REQ(var, data, size) if (!var || (cgltf_size)var > size) { return CGLTF_ERROR_JSON; } var = &data[(cgltf_size)var-1];
-
-static int cgltf_json_strcmp(jsmntok_t const* tok, const uint8_t* json_chunk, const char* str)
-{
- CGLTF_CHECK_TOKTYPE(*tok, JSMN_STRING);
- size_t const str_len = strlen(str);
- size_t const name_length = tok->end - tok->start;
- return (str_len == name_length) ? strncmp((const char*)json_chunk + tok->start, str, str_len) : 128;
-}
-
-static int cgltf_json_to_int(jsmntok_t const* tok, const uint8_t* json_chunk)
-{
- CGLTF_CHECK_TOKTYPE(*tok, JSMN_PRIMITIVE);
- char tmp[128];
- int size = (cgltf_size)(tok->end - tok->start) < sizeof(tmp) ? tok->end - tok->start : (int)(sizeof(tmp) - 1);
- strncpy(tmp, (const char*)json_chunk + tok->start, size);
- tmp[size] = 0;
- return CGLTF_ATOI(tmp);
-}
-
-static cgltf_float cgltf_json_to_float(jsmntok_t const* tok, const uint8_t* json_chunk)
-{
- CGLTF_CHECK_TOKTYPE(*tok, JSMN_PRIMITIVE);
- char tmp[128];
- int size = (cgltf_size)(tok->end - tok->start) < sizeof(tmp) ? tok->end - tok->start : (int)(sizeof(tmp) - 1);
- strncpy(tmp, (const char*)json_chunk + tok->start, size);
- tmp[size] = 0;
- return (cgltf_float)CGLTF_ATOF(tmp);
-}
-
-static cgltf_bool cgltf_json_to_bool(jsmntok_t const* tok, const uint8_t* json_chunk)
-{
- int size = tok->end - tok->start;
- return size == 4 && memcmp(json_chunk + tok->start, "true", 4) == 0;
-}
-
-static int cgltf_skip_json(jsmntok_t const* tokens, int i)
-{
- int end = i + 1;
-
- while (i < end)
- {
- switch (tokens[i].type)
- {
- case JSMN_OBJECT:
- end += tokens[i].size * 2;
- break;
-
- case JSMN_ARRAY:
- end += tokens[i].size;
- break;
-
- case JSMN_PRIMITIVE:
- case JSMN_STRING:
- break;
-
- default:
- return -1;
- }
-
- i++;
- }
-
- return i;
-}
-
-static void cgltf_fill_float_array(float* out_array, int size, float value)
-{
- for (int j = 0; j < size; ++j)
- {
- out_array[j] = value;
- }
-}
-
-static int cgltf_parse_json_float_array(jsmntok_t const* tokens, int i, const uint8_t* json_chunk, float* out_array, int size)
-{
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_ARRAY);
- if (tokens[i].size != size)
- {
- return CGLTF_ERROR_JSON;
- }
- ++i;
- for (int j = 0; j < size; ++j)
- {
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_PRIMITIVE);
- out_array[j] = cgltf_json_to_float(tokens + i, json_chunk);
- ++i;
- }
- return i;
-}
-
-static int cgltf_parse_json_string(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, char** out_string)
-{
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_STRING);
- if (*out_string)
- {
- return CGLTF_ERROR_JSON;
- }
- int size = tokens[i].end - tokens[i].start;
- char* result = (char*)options->memory.alloc(options->memory.user_data, size + 1);
- if (!result)
- {
- return CGLTF_ERROR_NOMEM;
- }
- strncpy(result, (const char*)json_chunk + tokens[i].start, size);
- result[size] = 0;
- *out_string = result;
- return i + 1;
-}
-
-static int cgltf_parse_json_array(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, size_t element_size, void** out_array, cgltf_size* out_size)
-{
- (void)json_chunk;
- if (tokens[i].type != JSMN_ARRAY)
- {
- return tokens[i].type == JSMN_OBJECT ? CGLTF_ERROR_LEGACY : CGLTF_ERROR_JSON;
- }
- if (*out_array)
- {
- return CGLTF_ERROR_JSON;
- }
- int size = tokens[i].size;
- void* result = cgltf_calloc(options, element_size, size);
- if (!result)
- {
- return CGLTF_ERROR_NOMEM;
- }
- *out_array = result;
- *out_size = size;
- return i + 1;
-}
-
-static int cgltf_parse_json_string_array(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, char*** out_array, cgltf_size* out_size)
-{
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_ARRAY);
- i = cgltf_parse_json_array(options, tokens, i, json_chunk, sizeof(char*), (void**)out_array, out_size);
- if (i < 0)
- {
- return i;
- }
-
- for (cgltf_size j = 0; j < *out_size; ++j)
- {
- i = cgltf_parse_json_string(options, tokens, i, json_chunk, j + (*out_array));
- if (i < 0)
- {
- return i;
- }
- }
- return i;
-}
-
-static void cgltf_parse_attribute_type(const char* name, cgltf_attribute_type* out_type, int* out_index)
-{
- const char* us = strchr(name, '_');
- size_t len = us ? (size_t)(us - name) : strlen(name);
-
- if (len == 8 && strncmp(name, "POSITION", 8) == 0)
- {
- *out_type = cgltf_attribute_type_position;
- }
- else if (len == 6 && strncmp(name, "NORMAL", 6) == 0)
- {
- *out_type = cgltf_attribute_type_normal;
- }
- else if (len == 7 && strncmp(name, "TANGENT", 7) == 0)
- {
- *out_type = cgltf_attribute_type_tangent;
- }
- else if (len == 8 && strncmp(name, "TEXCOORD", 8) == 0)
- {
- *out_type = cgltf_attribute_type_texcoord;
- }
- else if (len == 5 && strncmp(name, "COLOR", 5) == 0)
- {
- *out_type = cgltf_attribute_type_color;
- }
- else if (len == 6 && strncmp(name, "JOINTS", 6) == 0)
- {
- *out_type = cgltf_attribute_type_joints;
- }
- else if (len == 7 && strncmp(name, "WEIGHTS", 7) == 0)
- {
- *out_type = cgltf_attribute_type_weights;
- }
- else
- {
- *out_type = cgltf_attribute_type_invalid;
- }
-
- if (us && *out_type != cgltf_attribute_type_invalid)
- {
- *out_index = CGLTF_ATOI(us + 1);
- }
-}
-
-static int cgltf_parse_json_attribute_list(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_attribute** out_attributes, cgltf_size* out_attributes_count)
-{
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- if (*out_attributes)
- {
- return CGLTF_ERROR_JSON;
- }
-
- *out_attributes_count = tokens[i].size;
- *out_attributes = (cgltf_attribute*)cgltf_calloc(options, sizeof(cgltf_attribute), *out_attributes_count);
- ++i;
-
- if (!*out_attributes)
- {
- return CGLTF_ERROR_NOMEM;
- }
-
- for (cgltf_size j = 0; j < *out_attributes_count; ++j)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- i = cgltf_parse_json_string(options, tokens, i, json_chunk, &(*out_attributes)[j].name);
- if (i < 0)
- {
- return CGLTF_ERROR_JSON;
- }
-
- cgltf_parse_attribute_type((*out_attributes)[j].name, &(*out_attributes)[j].type, &(*out_attributes)[j].index);
-
- (*out_attributes)[j].data = CGLTF_PTRINDEX(cgltf_accessor, cgltf_json_to_int(tokens + i, json_chunk));
- ++i;
- }
-
- return i;
-}
-
-static int cgltf_parse_json_extras(jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_extras* out_extras)
-{
- (void)json_chunk;
- out_extras->start_offset = tokens[i].start;
- out_extras->end_offset = tokens[i].end;
- i = cgltf_skip_json(tokens, i);
- return i;
-}
-
-static int cgltf_parse_json_primitive(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_primitive* out_prim)
-{
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- out_prim->type = cgltf_primitive_type_triangles;
-
- int size = tokens[i].size;
- ++i;
-
- for (int j = 0; j < size; ++j)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens+i, json_chunk, "mode") == 0)
- {
- ++i;
- out_prim->type
- = (cgltf_primitive_type)
- cgltf_json_to_int(tokens+i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "indices") == 0)
- {
- ++i;
- out_prim->indices = CGLTF_PTRINDEX(cgltf_accessor, cgltf_json_to_int(tokens + i, json_chunk));
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "material") == 0)
- {
- ++i;
- out_prim->material = CGLTF_PTRINDEX(cgltf_material, cgltf_json_to_int(tokens + i, json_chunk));
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "attributes") == 0)
- {
- i = cgltf_parse_json_attribute_list(options, tokens, i + 1, json_chunk, &out_prim->attributes, &out_prim->attributes_count);
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "targets") == 0)
- {
- i = cgltf_parse_json_array(options, tokens, i + 1, json_chunk, sizeof(cgltf_morph_target), (void**)&out_prim->targets, &out_prim->targets_count);
- if (i < 0)
- {
- return i;
- }
-
- for (cgltf_size k = 0; k < out_prim->targets_count; ++k)
- {
- i = cgltf_parse_json_attribute_list(options, tokens, i, json_chunk, &out_prim->targets[k].attributes, &out_prim->targets[k].attributes_count);
- if (i < 0)
- {
- return i;
- }
- }
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "extras") == 0)
- {
- i = cgltf_parse_json_extras(tokens, i + 1, json_chunk, &out_prim->extras);
- }
- else
- {
- i = cgltf_skip_json(tokens, i+1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
-
- return i;
-}
-
-static int cgltf_parse_json_mesh(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_mesh* out_mesh)
-{
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- int size = tokens[i].size;
- ++i;
-
- for (int j = 0; j < size; ++j)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens+i, json_chunk, "name") == 0)
- {
- i = cgltf_parse_json_string(options, tokens, i + 1, json_chunk, &out_mesh->name);
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "primitives") == 0)
- {
- i = cgltf_parse_json_array(options, tokens, i + 1, json_chunk, sizeof(cgltf_primitive), (void**)&out_mesh->primitives, &out_mesh->primitives_count);
- if (i < 0)
- {
- return i;
- }
-
- for (cgltf_size prim_index = 0; prim_index < out_mesh->primitives_count; ++prim_index)
- {
- i = cgltf_parse_json_primitive(options, tokens, i, json_chunk, &out_mesh->primitives[prim_index]);
- if (i < 0)
- {
- return i;
- }
- }
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "weights") == 0)
- {
- i = cgltf_parse_json_array(options, tokens, i + 1, json_chunk, sizeof(cgltf_float), (void**)&out_mesh->weights, &out_mesh->weights_count);
- if (i < 0)
- {
- return i;
- }
-
- i = cgltf_parse_json_float_array(tokens, i - 1, json_chunk, out_mesh->weights, (int)out_mesh->weights_count);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "extras") == 0)
- {
- ++i;
-
- out_mesh->extras.start_offset = tokens[i].start;
- out_mesh->extras.end_offset = tokens[i].end;
-
- if (tokens[i].type == JSMN_OBJECT)
- {
- int extras_size = tokens[i].size;
- ++i;
-
- for (int k = 0; k < extras_size; ++k)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens+i, json_chunk, "targetNames") == 0)
- {
- i = cgltf_parse_json_string_array(options, tokens, i + 1, json_chunk, &out_mesh->target_names, &out_mesh->target_names_count);
- }
- else
- {
- i = cgltf_skip_json(tokens, i+1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
- }
- else
- {
- i = cgltf_skip_json(tokens, i);
- }
- }
- else
- {
- i = cgltf_skip_json(tokens, i+1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
-
- return i;
-}
-
-static int cgltf_parse_json_meshes(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_data* out_data)
-{
- i = cgltf_parse_json_array(options, tokens, i, json_chunk, sizeof(cgltf_mesh), (void**)&out_data->meshes, &out_data->meshes_count);
- if (i < 0)
- {
- return i;
- }
-
- for (cgltf_size j = 0; j < out_data->meshes_count; ++j)
- {
- i = cgltf_parse_json_mesh(options, tokens, i, json_chunk, &out_data->meshes[j]);
- if (i < 0)
- {
- return i;
- }
- }
- return i;
-}
-
-static cgltf_component_type cgltf_json_to_component_type(jsmntok_t const* tok, const uint8_t* json_chunk)
-{
- int type = cgltf_json_to_int(tok, json_chunk);
-
- switch (type)
- {
- case 5120:
- return cgltf_component_type_r_8;
- case 5121:
- return cgltf_component_type_r_8u;
- case 5122:
- return cgltf_component_type_r_16;
- case 5123:
- return cgltf_component_type_r_16u;
- case 5125:
- return cgltf_component_type_r_32u;
- case 5126:
- return cgltf_component_type_r_32f;
- default:
- return cgltf_component_type_invalid;
- }
-}
-
-static int cgltf_parse_json_accessor_sparse(jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_accessor_sparse* out_sparse)
-{
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- int size = tokens[i].size;
- ++i;
-
- for (int j = 0; j < size; ++j)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens+i, json_chunk, "count") == 0)
- {
- ++i;
- out_sparse->count = cgltf_json_to_int(tokens + i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "indices") == 0)
- {
- ++i;
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- int indices_size = tokens[i].size;
- ++i;
-
- for (int k = 0; k < indices_size; ++k)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens+i, json_chunk, "bufferView") == 0)
- {
- ++i;
- out_sparse->indices_buffer_view = CGLTF_PTRINDEX(cgltf_buffer_view, cgltf_json_to_int(tokens + i, json_chunk));
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "byteOffset") == 0)
- {
- ++i;
- out_sparse->indices_byte_offset = cgltf_json_to_int(tokens + i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "componentType") == 0)
- {
- ++i;
- out_sparse->indices_component_type = cgltf_json_to_component_type(tokens + i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "extras") == 0)
- {
- i = cgltf_parse_json_extras(tokens, i + 1, json_chunk, &out_sparse->indices_extras);
- }
- else
- {
- i = cgltf_skip_json(tokens, i+1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "values") == 0)
- {
- ++i;
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- int values_size = tokens[i].size;
- ++i;
-
- for (int k = 0; k < values_size; ++k)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens+i, json_chunk, "bufferView") == 0)
- {
- ++i;
- out_sparse->values_buffer_view = CGLTF_PTRINDEX(cgltf_buffer_view, cgltf_json_to_int(tokens + i, json_chunk));
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "byteOffset") == 0)
- {
- ++i;
- out_sparse->values_byte_offset = cgltf_json_to_int(tokens + i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "extras") == 0)
- {
- i = cgltf_parse_json_extras(tokens, i + 1, json_chunk, &out_sparse->values_extras);
- }
- else
- {
- i = cgltf_skip_json(tokens, i+1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "extras") == 0)
- {
- i = cgltf_parse_json_extras(tokens, i + 1, json_chunk, &out_sparse->extras);
- }
- else
- {
- i = cgltf_skip_json(tokens, i+1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
-
- return i;
-}
-
-static int cgltf_parse_json_accessor(jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_accessor* out_accessor)
-{
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- int size = tokens[i].size;
- ++i;
-
- for (int j = 0; j < size; ++j)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens+i, json_chunk, "bufferView") == 0)
- {
- ++i;
- out_accessor->buffer_view = CGLTF_PTRINDEX(cgltf_buffer_view, cgltf_json_to_int(tokens + i, json_chunk));
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "byteOffset") == 0)
- {
- ++i;
- out_accessor->offset =
- cgltf_json_to_int(tokens+i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "componentType") == 0)
- {
- ++i;
- out_accessor->component_type = cgltf_json_to_component_type(tokens + i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "normalized") == 0)
- {
- ++i;
- out_accessor->normalized = cgltf_json_to_bool(tokens+i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "count") == 0)
- {
- ++i;
- out_accessor->count =
- cgltf_json_to_int(tokens+i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "type") == 0)
- {
- ++i;
- if (cgltf_json_strcmp(tokens+i, json_chunk, "SCALAR") == 0)
- {
- out_accessor->type = cgltf_type_scalar;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "VEC2") == 0)
- {
- out_accessor->type = cgltf_type_vec2;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "VEC3") == 0)
- {
- out_accessor->type = cgltf_type_vec3;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "VEC4") == 0)
- {
- out_accessor->type = cgltf_type_vec4;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "MAT2") == 0)
- {
- out_accessor->type = cgltf_type_mat2;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "MAT3") == 0)
- {
- out_accessor->type = cgltf_type_mat3;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "MAT4") == 0)
- {
- out_accessor->type = cgltf_type_mat4;
- }
- ++i;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "min") == 0)
- {
- ++i;
- out_accessor->has_min = 1;
- // note: we can't parse the precise number of elements since type may not have been computed yet
- int min_size = tokens[i].size > 16 ? 16 : tokens[i].size;
- i = cgltf_parse_json_float_array(tokens, i, json_chunk, out_accessor->min, min_size);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "max") == 0)
- {
- ++i;
- out_accessor->has_max = 1;
- // note: we can't parse the precise number of elements since type may not have been computed yet
- int max_size = tokens[i].size > 16 ? 16 : tokens[i].size;
- i = cgltf_parse_json_float_array(tokens, i, json_chunk, out_accessor->max, max_size);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "sparse") == 0)
- {
- out_accessor->is_sparse = 1;
- i = cgltf_parse_json_accessor_sparse(tokens, i + 1, json_chunk, &out_accessor->sparse);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "extras") == 0)
- {
- i = cgltf_parse_json_extras(tokens, i + 1, json_chunk, &out_accessor->extras);
- }
- else
- {
- i = cgltf_skip_json(tokens, i+1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
-
- return i;
-}
-
-static int cgltf_parse_json_texture_transform(jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_texture_transform* out_texture_transform)
-{
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- int size = tokens[i].size;
- ++i;
-
- for (int j = 0; j < size; ++j)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens + i, json_chunk, "offset") == 0)
- {
- i = cgltf_parse_json_float_array(tokens, i + 1, json_chunk, out_texture_transform->offset, 2);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "rotation") == 0)
- {
- ++i;
- out_texture_transform->rotation = cgltf_json_to_float(tokens + i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "scale") == 0)
- {
- i = cgltf_parse_json_float_array(tokens, i + 1, json_chunk, out_texture_transform->scale, 2);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "texCoord") == 0)
- {
- ++i;
- out_texture_transform->texcoord = cgltf_json_to_int(tokens + i, json_chunk);
- ++i;
- }
- else
- {
- i = cgltf_skip_json(tokens, i + 1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
-
- return i;
-}
-
-static int cgltf_parse_json_texture_view(jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_texture_view* out_texture_view)
-{
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- out_texture_view->scale = 1.0f;
- cgltf_fill_float_array(out_texture_view->transform.scale, 2, 1.0f);
-
- int size = tokens[i].size;
- ++i;
-
- for (int j = 0; j < size; ++j)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens + i, json_chunk, "index") == 0)
- {
- ++i;
- out_texture_view->texture = CGLTF_PTRINDEX(cgltf_texture, cgltf_json_to_int(tokens + i, json_chunk));
- ++i;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "texCoord") == 0)
- {
- ++i;
- out_texture_view->texcoord = cgltf_json_to_int(tokens + i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "scale") == 0)
- {
- ++i;
- out_texture_view->scale = cgltf_json_to_float(tokens + i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "strength") == 0)
- {
- ++i;
- out_texture_view->scale = cgltf_json_to_float(tokens + i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "extras") == 0)
- {
- i = cgltf_parse_json_extras(tokens, i + 1, json_chunk, &out_texture_view->extras);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "extensions") == 0)
- {
- ++i;
-
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- int extensions_size = tokens[i].size;
- ++i;
-
- for (int k = 0; k < extensions_size; ++k)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens+i, json_chunk, "KHR_texture_transform") == 0)
- {
- out_texture_view->has_transform = 1;
- i = cgltf_parse_json_texture_transform(tokens, i + 1, json_chunk, &out_texture_view->transform);
- }
- else
- {
- i = cgltf_skip_json(tokens, i+1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
- }
- else
- {
- i = cgltf_skip_json(tokens, i + 1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
-
- return i;
-}
-
-static int cgltf_parse_json_pbr_metallic_roughness(jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_pbr_metallic_roughness* out_pbr)
-{
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- int size = tokens[i].size;
- ++i;
-
- for (int j = 0; j < size; ++j)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens+i, json_chunk, "metallicFactor") == 0)
- {
- ++i;
- out_pbr->metallic_factor =
- cgltf_json_to_float(tokens + i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "roughnessFactor") == 0)
- {
- ++i;
- out_pbr->roughness_factor =
- cgltf_json_to_float(tokens+i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "baseColorFactor") == 0)
- {
- i = cgltf_parse_json_float_array(tokens, i + 1, json_chunk, out_pbr->base_color_factor, 4);
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "baseColorTexture") == 0)
- {
- i = cgltf_parse_json_texture_view(tokens, i + 1, json_chunk,
- &out_pbr->base_color_texture);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "metallicRoughnessTexture") == 0)
- {
- i = cgltf_parse_json_texture_view(tokens, i + 1, json_chunk,
- &out_pbr->metallic_roughness_texture);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "extras") == 0)
- {
- i = cgltf_parse_json_extras(tokens, i + 1, json_chunk, &out_pbr->extras);
- }
- else
- {
- i = cgltf_skip_json(tokens, i+1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
-
- return i;
-}
-
-static int cgltf_parse_json_pbr_specular_glossiness(jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_pbr_specular_glossiness* out_pbr)
-{
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
- int size = tokens[i].size;
- ++i;
-
- for (int j = 0; j < size; ++j)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens+i, json_chunk, "diffuseFactor") == 0)
- {
- i = cgltf_parse_json_float_array(tokens, i + 1, json_chunk, out_pbr->diffuse_factor, 4);
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "specularFactor") == 0)
- {
- i = cgltf_parse_json_float_array(tokens, i + 1, json_chunk, out_pbr->specular_factor, 3);
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "glossinessFactor") == 0)
- {
- ++i;
- out_pbr->glossiness_factor = cgltf_json_to_float(tokens + i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "diffuseTexture") == 0)
- {
- i = cgltf_parse_json_texture_view(tokens, i + 1, json_chunk, &out_pbr->diffuse_texture);
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "specularGlossinessTexture") == 0)
- {
- i = cgltf_parse_json_texture_view(tokens, i + 1, json_chunk, &out_pbr->specular_glossiness_texture);
- }
- else
- {
- i = cgltf_skip_json(tokens, i+1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
-
- return i;
-}
-
-static int cgltf_parse_json_image(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_image* out_image)
-{
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- int size = tokens[i].size;
- ++i;
-
- for (int j = 0; j < size; ++j)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens + i, json_chunk, "uri") == 0)
- {
- i = cgltf_parse_json_string(options, tokens, i + 1, json_chunk, &out_image->uri);
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "bufferView") == 0)
- {
- ++i;
- out_image->buffer_view = CGLTF_PTRINDEX(cgltf_buffer_view, cgltf_json_to_int(tokens + i, json_chunk));
- ++i;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "mimeType") == 0)
- {
- i = cgltf_parse_json_string(options, tokens, i + 1, json_chunk, &out_image->mime_type);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "name") == 0)
- {
- i = cgltf_parse_json_string(options, tokens, i + 1, json_chunk, &out_image->name);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "extras") == 0)
- {
- i = cgltf_parse_json_extras(tokens, i + 1, json_chunk, &out_image->extras);
- }
- else
- {
- i = cgltf_skip_json(tokens, i + 1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
-
- return i;
-}
-
-static int cgltf_parse_json_sampler(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_sampler* out_sampler)
-{
- (void)options;
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- out_sampler->wrap_s = 10497;
- out_sampler->wrap_t = 10497;
-
- int size = tokens[i].size;
- ++i;
-
- for (int j = 0; j < size; ++j)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens + i, json_chunk, "magFilter") == 0)
- {
- ++i;
- out_sampler->mag_filter
- = cgltf_json_to_int(tokens + i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "minFilter") == 0)
- {
- ++i;
- out_sampler->min_filter
- = cgltf_json_to_int(tokens + i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "wrapS") == 0)
- {
- ++i;
- out_sampler->wrap_s
- = cgltf_json_to_int(tokens + i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "wrapT") == 0)
- {
- ++i;
- out_sampler->wrap_t
- = cgltf_json_to_int(tokens + i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "extras") == 0)
- {
- i = cgltf_parse_json_extras(tokens, i + 1, json_chunk, &out_sampler->extras);
- }
- else
- {
- i = cgltf_skip_json(tokens, i + 1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
-
- return i;
-}
-
-
-static int cgltf_parse_json_texture(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_texture* out_texture)
-{
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- int size = tokens[i].size;
- ++i;
-
- for (int j = 0; j < size; ++j)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens+i, json_chunk, "name") == 0)
- {
- i = cgltf_parse_json_string(options, tokens, i + 1, json_chunk, &out_texture->name);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "sampler") == 0)
- {
- ++i;
- out_texture->sampler = CGLTF_PTRINDEX(cgltf_sampler, cgltf_json_to_int(tokens + i, json_chunk));
- ++i;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "source") == 0)
- {
- ++i;
- out_texture->image = CGLTF_PTRINDEX(cgltf_image, cgltf_json_to_int(tokens + i, json_chunk));
- ++i;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "extras") == 0)
- {
- i = cgltf_parse_json_extras(tokens, i + 1, json_chunk, &out_texture->extras);
- }
- else
- {
- i = cgltf_skip_json(tokens, i + 1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
-
- return i;
-}
-
-static int cgltf_parse_json_material(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_material* out_material)
-{
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- cgltf_fill_float_array(out_material->pbr_metallic_roughness.base_color_factor, 4, 1.0f);
- out_material->pbr_metallic_roughness.metallic_factor = 1.0f;
- out_material->pbr_metallic_roughness.roughness_factor = 1.0f;
-
- cgltf_fill_float_array(out_material->pbr_specular_glossiness.diffuse_factor, 4, 1.0f);
- cgltf_fill_float_array(out_material->pbr_specular_glossiness.specular_factor, 3, 1.0f);
- out_material->pbr_specular_glossiness.glossiness_factor = 1.0f;
-
- out_material->alpha_cutoff = 0.5f;
-
- int size = tokens[i].size;
- ++i;
-
- for (int j = 0; j < size; ++j)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens+i, json_chunk, "name") == 0)
- {
- i = cgltf_parse_json_string(options, tokens, i + 1, json_chunk, &out_material->name);
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "pbrMetallicRoughness") == 0)
- {
- out_material->has_pbr_metallic_roughness = 1;
- i = cgltf_parse_json_pbr_metallic_roughness(tokens, i + 1, json_chunk, &out_material->pbr_metallic_roughness);
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "emissiveFactor") == 0)
- {
- i = cgltf_parse_json_float_array(tokens, i + 1, json_chunk, out_material->emissive_factor, 3);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "normalTexture") == 0)
- {
- i = cgltf_parse_json_texture_view(tokens, i + 1, json_chunk,
- &out_material->normal_texture);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "occlusionTexture") == 0)
- {
- i = cgltf_parse_json_texture_view(tokens, i + 1, json_chunk,
- &out_material->occlusion_texture);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "emissiveTexture") == 0)
- {
- i = cgltf_parse_json_texture_view(tokens, i + 1, json_chunk,
- &out_material->emissive_texture);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "alphaMode") == 0)
- {
- ++i;
- if (cgltf_json_strcmp(tokens + i, json_chunk, "OPAQUE") == 0)
- {
- out_material->alpha_mode = cgltf_alpha_mode_opaque;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "MASK") == 0)
- {
- out_material->alpha_mode = cgltf_alpha_mode_mask;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "BLEND") == 0)
- {
- out_material->alpha_mode = cgltf_alpha_mode_blend;
- }
- ++i;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "alphaCutoff") == 0)
- {
- ++i;
- out_material->alpha_cutoff = cgltf_json_to_float(tokens + i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "doubleSided") == 0)
- {
- ++i;
- out_material->double_sided =
- cgltf_json_to_bool(tokens + i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "extras") == 0)
- {
- i = cgltf_parse_json_extras(tokens, i + 1, json_chunk, &out_material->extras);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "extensions") == 0)
- {
- ++i;
-
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- int extensions_size = tokens[i].size;
- ++i;
-
- for (int k = 0; k < extensions_size; ++k)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens+i, json_chunk, "KHR_materials_pbrSpecularGlossiness") == 0)
- {
- out_material->has_pbr_specular_glossiness = 1;
- i = cgltf_parse_json_pbr_specular_glossiness(tokens, i + 1, json_chunk, &out_material->pbr_specular_glossiness);
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "KHR_materials_unlit") == 0)
- {
- out_material->unlit = 1;
- i = cgltf_skip_json(tokens, i+1);
- }
- else
- {
- i = cgltf_skip_json(tokens, i+1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
- }
- else
- {
- i = cgltf_skip_json(tokens, i+1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
-
- return i;
-}
-
-static int cgltf_parse_json_accessors(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_data* out_data)
-{
- i = cgltf_parse_json_array(options, tokens, i, json_chunk, sizeof(cgltf_accessor), (void**)&out_data->accessors, &out_data->accessors_count);
- if (i < 0)
- {
- return i;
- }
-
- for (cgltf_size j = 0; j < out_data->accessors_count; ++j)
- {
- i = cgltf_parse_json_accessor(tokens, i, json_chunk, &out_data->accessors[j]);
- if (i < 0)
- {
- return i;
- }
- }
- return i;
-}
-
-static int cgltf_parse_json_materials(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_data* out_data)
-{
- i = cgltf_parse_json_array(options, tokens, i, json_chunk, sizeof(cgltf_material), (void**)&out_data->materials, &out_data->materials_count);
- if (i < 0)
- {
- return i;
- }
-
- for (cgltf_size j = 0; j < out_data->materials_count; ++j)
- {
- i = cgltf_parse_json_material(options, tokens, i, json_chunk, &out_data->materials[j]);
- if (i < 0)
- {
- return i;
- }
- }
- return i;
-}
-
-static int cgltf_parse_json_images(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_data* out_data)
-{
- i = cgltf_parse_json_array(options, tokens, i, json_chunk, sizeof(cgltf_image), (void**)&out_data->images, &out_data->images_count);
- if (i < 0)
- {
- return i;
- }
-
- for (cgltf_size j = 0; j < out_data->images_count; ++j)
- {
- i = cgltf_parse_json_image(options, tokens, i, json_chunk, &out_data->images[j]);
- if (i < 0)
- {
- return i;
- }
- }
- return i;
-}
-
-static int cgltf_parse_json_textures(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_data* out_data)
-{
- i = cgltf_parse_json_array(options, tokens, i, json_chunk, sizeof(cgltf_texture), (void**)&out_data->textures, &out_data->textures_count);
- if (i < 0)
- {
- return i;
- }
-
- for (cgltf_size j = 0; j < out_data->textures_count; ++j)
- {
- i = cgltf_parse_json_texture(options, tokens, i, json_chunk, &out_data->textures[j]);
- if (i < 0)
- {
- return i;
- }
- }
- return i;
-}
-
-static int cgltf_parse_json_samplers(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_data* out_data)
-{
- i = cgltf_parse_json_array(options, tokens, i, json_chunk, sizeof(cgltf_sampler), (void**)&out_data->samplers, &out_data->samplers_count);
- if (i < 0)
- {
- return i;
- }
-
- for (cgltf_size j = 0; j < out_data->samplers_count; ++j)
- {
- i = cgltf_parse_json_sampler(options, tokens, i, json_chunk, &out_data->samplers[j]);
- if (i < 0)
- {
- return i;
- }
- }
- return i;
-}
-
-static int cgltf_parse_json_buffer_view(jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_buffer_view* out_buffer_view)
-{
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- int size = tokens[i].size;
- ++i;
-
- for (int j = 0; j < size; ++j)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens+i, json_chunk, "buffer") == 0)
- {
- ++i;
- out_buffer_view->buffer = CGLTF_PTRINDEX(cgltf_buffer, cgltf_json_to_int(tokens + i, json_chunk));
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "byteOffset") == 0)
- {
- ++i;
- out_buffer_view->offset =
- cgltf_json_to_int(tokens+i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "byteLength") == 0)
- {
- ++i;
- out_buffer_view->size =
- cgltf_json_to_int(tokens+i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "byteStride") == 0)
- {
- ++i;
- out_buffer_view->stride =
- cgltf_json_to_int(tokens+i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "target") == 0)
- {
- ++i;
- int type = cgltf_json_to_int(tokens+i, json_chunk);
- switch (type)
- {
- case 34962:
- type = cgltf_buffer_view_type_vertices;
- break;
- case 34963:
- type = cgltf_buffer_view_type_indices;
- break;
- default:
- type = cgltf_buffer_view_type_invalid;
- break;
- }
- out_buffer_view->type = (cgltf_buffer_view_type)type;
- ++i;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "extras") == 0)
- {
- i = cgltf_parse_json_extras(tokens, i + 1, json_chunk, &out_buffer_view->extras);
- }
- else
- {
- i = cgltf_skip_json(tokens, i+1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
-
- return i;
-}
-
-static int cgltf_parse_json_buffer_views(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_data* out_data)
-{
- i = cgltf_parse_json_array(options, tokens, i, json_chunk, sizeof(cgltf_buffer_view), (void**)&out_data->buffer_views, &out_data->buffer_views_count);
- if (i < 0)
- {
- return i;
- }
-
- for (cgltf_size j = 0; j < out_data->buffer_views_count; ++j)
- {
- i = cgltf_parse_json_buffer_view(tokens, i, json_chunk, &out_data->buffer_views[j]);
- if (i < 0)
- {
- return i;
- }
- }
- return i;
-}
-
-static int cgltf_parse_json_buffer(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_buffer* out_buffer)
-{
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- int size = tokens[i].size;
- ++i;
-
- for (int j = 0; j < size; ++j)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens+i, json_chunk, "byteLength") == 0)
- {
- ++i;
- out_buffer->size =
- cgltf_json_to_int(tokens+i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "uri") == 0)
- {
- i = cgltf_parse_json_string(options, tokens, i + 1, json_chunk, &out_buffer->uri);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "extras") == 0)
- {
- i = cgltf_parse_json_extras(tokens, i + 1, json_chunk, &out_buffer->extras);
- }
- else
- {
- i = cgltf_skip_json(tokens, i+1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
-
- return i;
-}
-
-static int cgltf_parse_json_buffers(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_data* out_data)
-{
- i = cgltf_parse_json_array(options, tokens, i, json_chunk, sizeof(cgltf_buffer), (void**)&out_data->buffers, &out_data->buffers_count);
- if (i < 0)
- {
- return i;
- }
-
- for (cgltf_size j = 0; j < out_data->buffers_count; ++j)
- {
- i = cgltf_parse_json_buffer(options, tokens, i, json_chunk, &out_data->buffers[j]);
- if (i < 0)
- {
- return i;
- }
- }
- return i;
-}
-
-static int cgltf_parse_json_skin(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_skin* out_skin)
-{
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- int size = tokens[i].size;
- ++i;
-
- for (int j = 0; j < size; ++j)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens+i, json_chunk, "name") == 0)
- {
- i = cgltf_parse_json_string(options, tokens, i + 1, json_chunk, &out_skin->name);
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "joints") == 0)
- {
- i = cgltf_parse_json_array(options, tokens, i + 1, json_chunk, sizeof(cgltf_node*), (void**)&out_skin->joints, &out_skin->joints_count);
- if (i < 0)
- {
- return i;
- }
-
- for (cgltf_size k = 0; k < out_skin->joints_count; ++k)
- {
- out_skin->joints[k] = CGLTF_PTRINDEX(cgltf_node, cgltf_json_to_int(tokens + i, json_chunk));
- ++i;
- }
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "skeleton") == 0)
- {
- ++i;
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_PRIMITIVE);
- out_skin->skeleton = CGLTF_PTRINDEX(cgltf_node, cgltf_json_to_int(tokens + i, json_chunk));
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "inverseBindMatrices") == 0)
- {
- ++i;
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_PRIMITIVE);
- out_skin->inverse_bind_matrices = CGLTF_PTRINDEX(cgltf_accessor, cgltf_json_to_int(tokens + i, json_chunk));
- ++i;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "extras") == 0)
- {
- i = cgltf_parse_json_extras(tokens, i + 1, json_chunk, &out_skin->extras);
- }
- else
- {
- i = cgltf_skip_json(tokens, i+1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
-
- return i;
-}
-
-static int cgltf_parse_json_skins(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_data* out_data)
-{
- i = cgltf_parse_json_array(options, tokens, i, json_chunk, sizeof(cgltf_skin), (void**)&out_data->skins, &out_data->skins_count);
- if (i < 0)
- {
- return i;
- }
-
- for (cgltf_size j = 0; j < out_data->skins_count; ++j)
- {
- i = cgltf_parse_json_skin(options, tokens, i, json_chunk, &out_data->skins[j]);
- if (i < 0)
- {
- return i;
- }
- }
- return i;
-}
-
-static int cgltf_parse_json_camera(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_camera* out_camera)
-{
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- int size = tokens[i].size;
- ++i;
-
- for (int j = 0; j < size; ++j)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens+i, json_chunk, "name") == 0)
- {
- i = cgltf_parse_json_string(options, tokens, i + 1, json_chunk, &out_camera->name);
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "type") == 0)
- {
- ++i;
- if (cgltf_json_strcmp(tokens + i, json_chunk, "perspective") == 0)
- {
- out_camera->type = cgltf_camera_type_perspective;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "orthographic") == 0)
- {
- out_camera->type = cgltf_camera_type_orthographic;
- }
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "perspective") == 0)
- {
- ++i;
-
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- int data_size = tokens[i].size;
- ++i;
-
- out_camera->type = cgltf_camera_type_perspective;
-
- for (int k = 0; k < data_size; ++k)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens+i, json_chunk, "aspectRatio") == 0)
- {
- ++i;
- out_camera->data.perspective.aspect_ratio = cgltf_json_to_float(tokens + i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "yfov") == 0)
- {
- ++i;
- out_camera->data.perspective.yfov = cgltf_json_to_float(tokens + i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "zfar") == 0)
- {
- ++i;
- out_camera->data.perspective.zfar = cgltf_json_to_float(tokens + i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "znear") == 0)
- {
- ++i;
- out_camera->data.perspective.znear = cgltf_json_to_float(tokens + i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "extras") == 0)
- {
- i = cgltf_parse_json_extras(tokens, i + 1, json_chunk, &out_camera->data.perspective.extras);
- }
- else
- {
- i = cgltf_skip_json(tokens, i+1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "orthographic") == 0)
- {
- ++i;
-
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- int data_size = tokens[i].size;
- ++i;
-
- out_camera->type = cgltf_camera_type_orthographic;
-
- for (int k = 0; k < data_size; ++k)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens+i, json_chunk, "xmag") == 0)
- {
- ++i;
- out_camera->data.orthographic.xmag = cgltf_json_to_float(tokens + i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "ymag") == 0)
- {
- ++i;
- out_camera->data.orthographic.ymag = cgltf_json_to_float(tokens + i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "zfar") == 0)
- {
- ++i;
- out_camera->data.orthographic.zfar = cgltf_json_to_float(tokens + i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "znear") == 0)
- {
- ++i;
- out_camera->data.orthographic.znear = cgltf_json_to_float(tokens + i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "extras") == 0)
- {
- i = cgltf_parse_json_extras(tokens, i + 1, json_chunk, &out_camera->data.orthographic.extras);
- }
- else
- {
- i = cgltf_skip_json(tokens, i+1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "extras") == 0)
- {
- i = cgltf_parse_json_extras(tokens, i + 1, json_chunk, &out_camera->extras);
- }
- else
- {
- i = cgltf_skip_json(tokens, i+1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
-
- return i;
-}
-
-static int cgltf_parse_json_cameras(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_data* out_data)
-{
- i = cgltf_parse_json_array(options, tokens, i, json_chunk, sizeof(cgltf_camera), (void**)&out_data->cameras, &out_data->cameras_count);
- if (i < 0)
- {
- return i;
- }
-
- for (cgltf_size j = 0; j < out_data->cameras_count; ++j)
- {
- i = cgltf_parse_json_camera(options, tokens, i, json_chunk, &out_data->cameras[j]);
- if (i < 0)
- {
- return i;
- }
- }
- return i;
-}
-
-static int cgltf_parse_json_light(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_light* out_light)
-{
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- int size = tokens[i].size;
- ++i;
-
- for (int j = 0; j < size; ++j)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens+i, json_chunk, "name") == 0)
- {
- i = cgltf_parse_json_string(options, tokens, i + 1, json_chunk, &out_light->name);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "color") == 0)
- {
- i = cgltf_parse_json_float_array(tokens, i + 1, json_chunk, out_light->color, 3);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "intensity") == 0)
- {
- ++i;
- out_light->intensity = cgltf_json_to_float(tokens + i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "type") == 0)
- {
- ++i;
- if (cgltf_json_strcmp(tokens + i, json_chunk, "directional") == 0)
- {
- out_light->type = cgltf_light_type_directional;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "point") == 0)
- {
- out_light->type = cgltf_light_type_point;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "spot") == 0)
- {
- out_light->type = cgltf_light_type_spot;
- }
- ++i;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "range") == 0)
- {
- ++i;
- out_light->range = cgltf_json_to_float(tokens + i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "spot") == 0)
- {
- ++i;
-
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- int data_size = tokens[i].size;
- ++i;
-
- for (int k = 0; k < data_size; ++k)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens+i, json_chunk, "innerConeAngle") == 0)
- {
- ++i;
- out_light->spot_inner_cone_angle = cgltf_json_to_float(tokens + i, json_chunk);
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "outerConeAngle") == 0)
- {
- ++i;
- out_light->spot_outer_cone_angle = cgltf_json_to_float(tokens + i, json_chunk);
- ++i;
- }
- else
- {
- i = cgltf_skip_json(tokens, i+1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
- }
- else
- {
- i = cgltf_skip_json(tokens, i+1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
-
- return i;
-}
-
-static int cgltf_parse_json_lights(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_data* out_data)
-{
- i = cgltf_parse_json_array(options, tokens, i, json_chunk, sizeof(cgltf_light), (void**)&out_data->lights, &out_data->lights_count);
- if (i < 0)
- {
- return i;
- }
-
- for (cgltf_size j = 0; j < out_data->lights_count; ++j)
- {
- i = cgltf_parse_json_light(options, tokens, i, json_chunk, &out_data->lights[j]);
- if (i < 0)
- {
- return i;
- }
- }
- return i;
-}
-
-static int cgltf_parse_json_node(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_node* out_node)
-{
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- out_node->rotation[3] = 1.0f;
- out_node->scale[0] = 1.0f;
- out_node->scale[1] = 1.0f;
- out_node->scale[2] = 1.0f;
- out_node->matrix[0] = 1.0f;
- out_node->matrix[5] = 1.0f;
- out_node->matrix[10] = 1.0f;
- out_node->matrix[15] = 1.0f;
-
- int size = tokens[i].size;
- ++i;
-
- for (int j = 0; j < size; ++j)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens+i, json_chunk, "name") == 0)
- {
- i = cgltf_parse_json_string(options, tokens, i + 1, json_chunk, &out_node->name);
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "children") == 0)
- {
- i = cgltf_parse_json_array(options, tokens, i + 1, json_chunk, sizeof(cgltf_node*), (void**)&out_node->children, &out_node->children_count);
- if (i < 0)
- {
- return i;
- }
-
- for (cgltf_size k = 0; k < out_node->children_count; ++k)
- {
- out_node->children[k] = CGLTF_PTRINDEX(cgltf_node, cgltf_json_to_int(tokens + i, json_chunk));
- ++i;
- }
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "mesh") == 0)
- {
- ++i;
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_PRIMITIVE);
- out_node->mesh = CGLTF_PTRINDEX(cgltf_mesh, cgltf_json_to_int(tokens + i, json_chunk));
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "skin") == 0)
- {
- ++i;
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_PRIMITIVE);
- out_node->skin = CGLTF_PTRINDEX(cgltf_skin, cgltf_json_to_int(tokens + i, json_chunk));
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "camera") == 0)
- {
- ++i;
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_PRIMITIVE);
- out_node->camera = CGLTF_PTRINDEX(cgltf_camera, cgltf_json_to_int(tokens + i, json_chunk));
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "translation") == 0)
- {
- out_node->has_translation = 1;
- i = cgltf_parse_json_float_array(tokens, i + 1, json_chunk, out_node->translation, 3);
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "rotation") == 0)
- {
- out_node->has_rotation = 1;
- i = cgltf_parse_json_float_array(tokens, i + 1, json_chunk, out_node->rotation, 4);
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "scale") == 0)
- {
- out_node->has_scale = 1;
- i = cgltf_parse_json_float_array(tokens, i + 1, json_chunk, out_node->scale, 3);
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "matrix") == 0)
- {
- out_node->has_matrix = 1;
- i = cgltf_parse_json_float_array(tokens, i + 1, json_chunk, out_node->matrix, 16);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "weights") == 0)
- {
- i = cgltf_parse_json_array(options, tokens, i + 1, json_chunk, sizeof(cgltf_float), (void**)&out_node->weights, &out_node->weights_count);
- if (i < 0)
- {
- return i;
- }
-
- i = cgltf_parse_json_float_array(tokens, i - 1, json_chunk, out_node->weights, (int)out_node->weights_count);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "extras") == 0)
- {
- i = cgltf_parse_json_extras(tokens, i + 1, json_chunk, &out_node->extras);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "extensions") == 0)
- {
- ++i;
-
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- int extensions_size = tokens[i].size;
- ++i;
-
- for (int k = 0; k < extensions_size; ++k)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens+i, json_chunk, "KHR_lights_punctual") == 0)
- {
- ++i;
-
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- int data_size = tokens[i].size;
- ++i;
-
- for (int m = 0; m < data_size; ++m)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens + i, json_chunk, "light") == 0)
- {
- ++i;
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_PRIMITIVE);
- out_node->light = CGLTF_PTRINDEX(cgltf_light, cgltf_json_to_int(tokens + i, json_chunk));
- ++i;
- }
- else
- {
- i = cgltf_skip_json(tokens, i + 1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
- }
- else
- {
- i = cgltf_skip_json(tokens, i+1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
- }
- else
- {
- i = cgltf_skip_json(tokens, i+1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
-
- return i;
-}
-
-static int cgltf_parse_json_nodes(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_data* out_data)
-{
- i = cgltf_parse_json_array(options, tokens, i, json_chunk, sizeof(cgltf_node), (void**)&out_data->nodes, &out_data->nodes_count);
- if (i < 0)
- {
- return i;
- }
-
- for (cgltf_size j = 0; j < out_data->nodes_count; ++j)
- {
- i = cgltf_parse_json_node(options, tokens, i, json_chunk, &out_data->nodes[j]);
- if (i < 0)
- {
- return i;
- }
- }
- return i;
-}
-
-static int cgltf_parse_json_scene(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_scene* out_scene)
-{
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- int size = tokens[i].size;
- ++i;
-
- for (int j = 0; j < size; ++j)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens+i, json_chunk, "name") == 0)
- {
- i = cgltf_parse_json_string(options, tokens, i + 1, json_chunk, &out_scene->name);
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "nodes") == 0)
- {
- i = cgltf_parse_json_array(options, tokens, i + 1, json_chunk, sizeof(cgltf_node*), (void**)&out_scene->nodes, &out_scene->nodes_count);
- if (i < 0)
- {
- return i;
- }
-
- for (cgltf_size k = 0; k < out_scene->nodes_count; ++k)
- {
- out_scene->nodes[k] = CGLTF_PTRINDEX(cgltf_node, cgltf_json_to_int(tokens + i, json_chunk));
- ++i;
- }
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "extras") == 0)
- {
- i = cgltf_parse_json_extras(tokens, i + 1, json_chunk, &out_scene->extras);
- }
- else
- {
- i = cgltf_skip_json(tokens, i+1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
-
- return i;
-}
-
-static int cgltf_parse_json_scenes(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_data* out_data)
-{
- i = cgltf_parse_json_array(options, tokens, i, json_chunk, sizeof(cgltf_scene), (void**)&out_data->scenes, &out_data->scenes_count);
- if (i < 0)
- {
- return i;
- }
-
- for (cgltf_size j = 0; j < out_data->scenes_count; ++j)
- {
- i = cgltf_parse_json_scene(options, tokens, i, json_chunk, &out_data->scenes[j]);
- if (i < 0)
- {
- return i;
- }
- }
- return i;
-}
-
-static int cgltf_parse_json_animation_sampler(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_animation_sampler* out_sampler)
-{
- (void)options;
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- int size = tokens[i].size;
- ++i;
-
- for (int j = 0; j < size; ++j)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens+i, json_chunk, "input") == 0)
- {
- ++i;
- out_sampler->input = CGLTF_PTRINDEX(cgltf_accessor, cgltf_json_to_int(tokens + i, json_chunk));
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "output") == 0)
- {
- ++i;
- out_sampler->output = CGLTF_PTRINDEX(cgltf_accessor, cgltf_json_to_int(tokens + i, json_chunk));
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "interpolation") == 0)
- {
- ++i;
- if (cgltf_json_strcmp(tokens + i, json_chunk, "LINEAR") == 0)
- {
- out_sampler->interpolation = cgltf_interpolation_type_linear;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "STEP") == 0)
- {
- out_sampler->interpolation = cgltf_interpolation_type_step;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "CUBICSPLINE") == 0)
- {
- out_sampler->interpolation = cgltf_interpolation_type_cubic_spline;
- }
- ++i;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "extras") == 0)
- {
- i = cgltf_parse_json_extras(tokens, i + 1, json_chunk, &out_sampler->extras);
- }
- else
- {
- i = cgltf_skip_json(tokens, i+1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
-
- return i;
-}
-
-static int cgltf_parse_json_animation_channel(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_animation_channel* out_channel)
-{
- (void)options;
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- int size = tokens[i].size;
- ++i;
-
- for (int j = 0; j < size; ++j)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens+i, json_chunk, "sampler") == 0)
- {
- ++i;
- out_channel->sampler = CGLTF_PTRINDEX(cgltf_animation_sampler, cgltf_json_to_int(tokens + i, json_chunk));
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "target") == 0)
- {
- ++i;
-
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- int target_size = tokens[i].size;
- ++i;
-
- for (int k = 0; k < target_size; ++k)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens+i, json_chunk, "node") == 0)
- {
- ++i;
- out_channel->target_node = CGLTF_PTRINDEX(cgltf_node, cgltf_json_to_int(tokens + i, json_chunk));
- ++i;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "path") == 0)
- {
- ++i;
- if (cgltf_json_strcmp(tokens+i, json_chunk, "translation") == 0)
- {
- out_channel->target_path = cgltf_animation_path_type_translation;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "rotation") == 0)
- {
- out_channel->target_path = cgltf_animation_path_type_rotation;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "scale") == 0)
- {
- out_channel->target_path = cgltf_animation_path_type_scale;
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "weights") == 0)
- {
- out_channel->target_path = cgltf_animation_path_type_weights;
- }
- ++i;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "extras") == 0)
- {
- i = cgltf_parse_json_extras(tokens, i + 1, json_chunk, &out_channel->extras);
- }
- else
- {
- i = cgltf_skip_json(tokens, i+1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
- }
- else
- {
- i = cgltf_skip_json(tokens, i+1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
-
- return i;
-}
-
-static int cgltf_parse_json_animation(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_animation* out_animation)
-{
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- int size = tokens[i].size;
- ++i;
-
- for (int j = 0; j < size; ++j)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens+i, json_chunk, "name") == 0)
- {
- i = cgltf_parse_json_string(options, tokens, i + 1, json_chunk, &out_animation->name);
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "samplers") == 0)
- {
- i = cgltf_parse_json_array(options, tokens, i + 1, json_chunk, sizeof(cgltf_animation_sampler), (void**)&out_animation->samplers, &out_animation->samplers_count);
- if (i < 0)
- {
- return i;
- }
-
- for (cgltf_size k = 0; k < out_animation->samplers_count; ++k)
- {
- i = cgltf_parse_json_animation_sampler(options, tokens, i, json_chunk, &out_animation->samplers[k]);
- if (i < 0)
- {
- return i;
- }
- }
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "channels") == 0)
- {
- i = cgltf_parse_json_array(options, tokens, i + 1, json_chunk, sizeof(cgltf_animation_channel), (void**)&out_animation->channels, &out_animation->channels_count);
- if (i < 0)
- {
- return i;
- }
-
- for (cgltf_size k = 0; k < out_animation->channels_count; ++k)
- {
- i = cgltf_parse_json_animation_channel(options, tokens, i, json_chunk, &out_animation->channels[k]);
- if (i < 0)
- {
- return i;
- }
- }
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "extras") == 0)
- {
- i = cgltf_parse_json_extras(tokens, i + 1, json_chunk, &out_animation->extras);
- }
- else
- {
- i = cgltf_skip_json(tokens, i+1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
-
- return i;
-}
-
-static int cgltf_parse_json_animations(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_data* out_data)
-{
- i = cgltf_parse_json_array(options, tokens, i, json_chunk, sizeof(cgltf_animation), (void**)&out_data->animations, &out_data->animations_count);
- if (i < 0)
- {
- return i;
- }
-
- for (cgltf_size j = 0; j < out_data->animations_count; ++j)
- {
- i = cgltf_parse_json_animation(options, tokens, i, json_chunk, &out_data->animations[j]);
- if (i < 0)
- {
- return i;
- }
- }
- return i;
-}
-
-static int cgltf_parse_json_asset(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_asset* out_asset)
-{
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- int size = tokens[i].size;
- ++i;
-
- for (int j = 0; j < size; ++j)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens+i, json_chunk, "copyright") == 0)
- {
- i = cgltf_parse_json_string(options, tokens, i + 1, json_chunk, &out_asset->copyright);
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "generator") == 0)
- {
- i = cgltf_parse_json_string(options, tokens, i + 1, json_chunk, &out_asset->generator);
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "version") == 0)
- {
- i = cgltf_parse_json_string(options, tokens, i + 1, json_chunk, &out_asset->version);
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "minVersion") == 0)
- {
- i = cgltf_parse_json_string(options, tokens, i + 1, json_chunk, &out_asset->min_version);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "extras") == 0)
- {
- i = cgltf_parse_json_extras(tokens, i + 1, json_chunk, &out_asset->extras);
- }
- else
- {
- i = cgltf_skip_json(tokens, i+1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
-
- if (out_asset->version && CGLTF_ATOF(out_asset->version) < 2)
- {
- return CGLTF_ERROR_LEGACY;
- }
-
- return i;
-}
-
-cgltf_size cgltf_num_components(cgltf_type type) {
- switch (type)
- {
- case cgltf_type_vec2:
- return 2;
- case cgltf_type_vec3:
- return 3;
- case cgltf_type_vec4:
- return 4;
- case cgltf_type_mat2:
- return 4;
- case cgltf_type_mat3:
- return 9;
- case cgltf_type_mat4:
- return 16;
- case cgltf_type_invalid:
- case cgltf_type_scalar:
- default:
- return 1;
- }
-}
-
-static cgltf_size cgltf_component_size(cgltf_component_type component_type) {
- switch (component_type)
- {
- case cgltf_component_type_r_8:
- case cgltf_component_type_r_8u:
- return 1;
- case cgltf_component_type_r_16:
- case cgltf_component_type_r_16u:
- return 2;
- case cgltf_component_type_r_32u:
- case cgltf_component_type_r_32f:
- return 4;
- case cgltf_component_type_invalid:
- default:
- return 0;
- }
-}
-
-static cgltf_size cgltf_calc_size(cgltf_type type, cgltf_component_type component_type)
-{
- cgltf_size component_size = cgltf_component_size(component_type);
- if (type == cgltf_type_mat2 && component_size == 1)
- {
- return 8 * component_size;
- }
- else if (type == cgltf_type_mat3 && (component_size == 1 || component_size == 2))
- {
- return 12 * component_size;
- }
- return component_size * cgltf_num_components(type);
-}
-
-static int cgltf_fixup_pointers(cgltf_data* out_data);
-
-static int cgltf_parse_json_root(cgltf_options* options, jsmntok_t const* tokens, int i, const uint8_t* json_chunk, cgltf_data* out_data)
-{
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- int size = tokens[i].size;
- ++i;
-
- for (int j = 0; j < size; ++j)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens + i, json_chunk, "asset") == 0)
- {
- i = cgltf_parse_json_asset(options, tokens, i + 1, json_chunk, &out_data->asset);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "meshes") == 0)
- {
- i = cgltf_parse_json_meshes(options, tokens, i + 1, json_chunk, out_data);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "accessors") == 0)
- {
- i = cgltf_parse_json_accessors(options, tokens, i + 1, json_chunk, out_data);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "bufferViews") == 0)
- {
- i = cgltf_parse_json_buffer_views(options, tokens, i + 1, json_chunk, out_data);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "buffers") == 0)
- {
- i = cgltf_parse_json_buffers(options, tokens, i + 1, json_chunk, out_data);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "materials") == 0)
- {
- i = cgltf_parse_json_materials(options, tokens, i + 1, json_chunk, out_data);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "images") == 0)
- {
- i = cgltf_parse_json_images(options, tokens, i + 1, json_chunk, out_data);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "textures") == 0)
- {
- i = cgltf_parse_json_textures(options, tokens, i + 1, json_chunk, out_data);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "samplers") == 0)
- {
- i = cgltf_parse_json_samplers(options, tokens, i + 1, json_chunk, out_data);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "skins") == 0)
- {
- i = cgltf_parse_json_skins(options, tokens, i + 1, json_chunk, out_data);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "cameras") == 0)
- {
- i = cgltf_parse_json_cameras(options, tokens, i + 1, json_chunk, out_data);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "nodes") == 0)
- {
- i = cgltf_parse_json_nodes(options, tokens, i + 1, json_chunk, out_data);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "scenes") == 0)
- {
- i = cgltf_parse_json_scenes(options, tokens, i + 1, json_chunk, out_data);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "scene") == 0)
- {
- ++i;
- out_data->scene = CGLTF_PTRINDEX(cgltf_scene, cgltf_json_to_int(tokens + i, json_chunk));
- ++i;
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "animations") == 0)
- {
- i = cgltf_parse_json_animations(options, tokens, i + 1, json_chunk, out_data);
- }
- else if (cgltf_json_strcmp(tokens+i, json_chunk, "extras") == 0)
- {
- i = cgltf_parse_json_extras(tokens, i + 1, json_chunk, &out_data->extras);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "extensions") == 0)
- {
- ++i;
-
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- int extensions_size = tokens[i].size;
- ++i;
-
- for (int k = 0; k < extensions_size; ++k)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens+i, json_chunk, "KHR_lights_punctual") == 0)
- {
- ++i;
-
- CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
-
- int data_size = tokens[i].size;
- ++i;
-
- for (int m = 0; m < data_size; ++m)
- {
- CGLTF_CHECK_KEY(tokens[i]);
-
- if (cgltf_json_strcmp(tokens + i, json_chunk, "lights") == 0)
- {
- i = cgltf_parse_json_lights(options, tokens, i + 1, json_chunk, out_data);
- }
- else
- {
- i = cgltf_skip_json(tokens, i + 1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
- }
- else
- {
- i = cgltf_skip_json(tokens, i + 1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "extensionsUsed") == 0)
- {
- i = cgltf_parse_json_string_array(options, tokens, i + 1, json_chunk, &out_data->extensions_used, &out_data->extensions_used_count);
- }
- else if (cgltf_json_strcmp(tokens + i, json_chunk, "extensionsRequired") == 0)
- {
- i = cgltf_parse_json_string_array(options, tokens, i + 1, json_chunk, &out_data->extensions_required, &out_data->extensions_required_count);
- }
- else
- {
- i = cgltf_skip_json(tokens, i + 1);
- }
-
- if (i < 0)
- {
- return i;
- }
- }
-
- return i;
-}
-
-cgltf_result cgltf_parse_json(cgltf_options* options, const uint8_t* json_chunk, cgltf_size size, cgltf_data** out_data)
-{
- jsmn_parser parser = { 0, 0, 0 };
-
- if (options->json_token_count == 0)
- {
- int token_count = jsmn_parse(&parser, (const char*)json_chunk, size, NULL, 0);
-
- if (token_count <= 0)
- {
- return cgltf_result_invalid_json;
- }
-
- options->json_token_count = token_count;
- }
-
- jsmntok_t* tokens = (jsmntok_t*)options->memory.alloc(options->memory.user_data, sizeof(jsmntok_t) * (options->json_token_count + 1));
-
- if (!tokens)
- {
- return cgltf_result_out_of_memory;
- }
-
- jsmn_init(&parser);
-
- int token_count = jsmn_parse(&parser, (const char*)json_chunk, size, tokens, options->json_token_count);
-
- if (token_count <= 0)
- {
- options->memory.free(options->memory.user_data, tokens);
- return cgltf_result_invalid_json;
- }
-
- // this makes sure that we always have an UNDEFINED token at the end of the stream
- // for invalid JSON inputs this makes sure we don't perform out of bound reads of token data
- tokens[token_count].type = JSMN_UNDEFINED;
-
- cgltf_data* data = (cgltf_data*)options->memory.alloc(options->memory.user_data, sizeof(cgltf_data));
-
- if (!data)
- {
- options->memory.free(options->memory.user_data, tokens);
- return cgltf_result_out_of_memory;
- }
-
- memset(data, 0, sizeof(cgltf_data));
- data->memory = options->memory;
- data->file = options->file;
-
- int i = cgltf_parse_json_root(options, tokens, 0, json_chunk, data);
-
- options->memory.free(options->memory.user_data, tokens);
-
- if (i < 0)
- {
- cgltf_free(data);
-
- switch (i)
- {
- case CGLTF_ERROR_NOMEM: return cgltf_result_out_of_memory;
- case CGLTF_ERROR_LEGACY: return cgltf_result_legacy_gltf;
- default: return cgltf_result_invalid_gltf;
- }
- }
-
- if (cgltf_fixup_pointers(data) < 0)
- {
- cgltf_free(data);
- return cgltf_result_invalid_gltf;
- }
-
- data->json = (const char*)json_chunk;
- data->json_size = size;
-
- *out_data = data;
-
- return cgltf_result_success;
-}
-
-static int cgltf_fixup_pointers(cgltf_data* data)
-{
- for (cgltf_size i = 0; i < data->meshes_count; ++i)
- {
- for (cgltf_size j = 0; j < data->meshes[i].primitives_count; ++j)
- {
- CGLTF_PTRFIXUP(data->meshes[i].primitives[j].indices, data->accessors, data->accessors_count);
- CGLTF_PTRFIXUP(data->meshes[i].primitives[j].material, data->materials, data->materials_count);
-
- for (cgltf_size k = 0; k < data->meshes[i].primitives[j].attributes_count; ++k)
- {
- CGLTF_PTRFIXUP_REQ(data->meshes[i].primitives[j].attributes[k].data, data->accessors, data->accessors_count);
- }
-
- for (cgltf_size k = 0; k < data->meshes[i].primitives[j].targets_count; ++k)
- {
- for (cgltf_size m = 0; m < data->meshes[i].primitives[j].targets[k].attributes_count; ++m)
- {
- CGLTF_PTRFIXUP_REQ(data->meshes[i].primitives[j].targets[k].attributes[m].data, data->accessors, data->accessors_count);
- }
- }
- }
- }
-
- for (cgltf_size i = 0; i < data->accessors_count; ++i)
- {
- CGLTF_PTRFIXUP(data->accessors[i].buffer_view, data->buffer_views, data->buffer_views_count);
-
- if (data->accessors[i].is_sparse)
- {
- CGLTF_PTRFIXUP_REQ(data->accessors[i].sparse.indices_buffer_view, data->buffer_views, data->buffer_views_count);
- CGLTF_PTRFIXUP_REQ(data->accessors[i].sparse.values_buffer_view, data->buffer_views, data->buffer_views_count);
- }
-
- if (data->accessors[i].buffer_view)
- {
- data->accessors[i].stride = data->accessors[i].buffer_view->stride;
- }
-
- if (data->accessors[i].stride == 0)
- {
- data->accessors[i].stride = cgltf_calc_size(data->accessors[i].type, data->accessors[i].component_type);
- }
- }
-
- for (cgltf_size i = 0; i < data->textures_count; ++i)
- {
- CGLTF_PTRFIXUP(data->textures[i].image, data->images, data->images_count);
- CGLTF_PTRFIXUP(data->textures[i].sampler, data->samplers, data->samplers_count);
- }
-
- for (cgltf_size i = 0; i < data->images_count; ++i)
- {
- CGLTF_PTRFIXUP(data->images[i].buffer_view, data->buffer_views, data->buffer_views_count);
- }
-
- for (cgltf_size i = 0; i < data->materials_count; ++i)
- {
- CGLTF_PTRFIXUP(data->materials[i].normal_texture.texture, data->textures, data->textures_count);
- CGLTF_PTRFIXUP(data->materials[i].emissive_texture.texture, data->textures, data->textures_count);
- CGLTF_PTRFIXUP(data->materials[i].occlusion_texture.texture, data->textures, data->textures_count);
-
- CGLTF_PTRFIXUP(data->materials[i].pbr_metallic_roughness.base_color_texture.texture, data->textures, data->textures_count);
- CGLTF_PTRFIXUP(data->materials[i].pbr_metallic_roughness.metallic_roughness_texture.texture, data->textures, data->textures_count);
-
- CGLTF_PTRFIXUP(data->materials[i].pbr_specular_glossiness.diffuse_texture.texture, data->textures, data->textures_count);
- CGLTF_PTRFIXUP(data->materials[i].pbr_specular_glossiness.specular_glossiness_texture.texture, data->textures, data->textures_count);
- }
-
- for (cgltf_size i = 0; i < data->buffer_views_count; ++i)
- {
- CGLTF_PTRFIXUP_REQ(data->buffer_views[i].buffer, data->buffers, data->buffers_count);
- }
-
- for (cgltf_size i = 0; i < data->skins_count; ++i)
- {
- for (cgltf_size j = 0; j < data->skins[i].joints_count; ++j)
- {
- CGLTF_PTRFIXUP_REQ(data->skins[i].joints[j], data->nodes, data->nodes_count);
- }
-
- CGLTF_PTRFIXUP(data->skins[i].skeleton, data->nodes, data->nodes_count);
- CGLTF_PTRFIXUP(data->skins[i].inverse_bind_matrices, data->accessors, data->accessors_count);
- }
-
- for (cgltf_size i = 0; i < data->nodes_count; ++i)
- {
- for (cgltf_size j = 0; j < data->nodes[i].children_count; ++j)
- {
- CGLTF_PTRFIXUP_REQ(data->nodes[i].children[j], data->nodes, data->nodes_count);
-
- if (data->nodes[i].children[j]->parent)
- {
- return CGLTF_ERROR_JSON;
- }
-
- data->nodes[i].children[j]->parent = &data->nodes[i];
- }
-
- CGLTF_PTRFIXUP(data->nodes[i].mesh, data->meshes, data->meshes_count);
- CGLTF_PTRFIXUP(data->nodes[i].skin, data->skins, data->skins_count);
- CGLTF_PTRFIXUP(data->nodes[i].camera, data->cameras, data->cameras_count);
- CGLTF_PTRFIXUP(data->nodes[i].light, data->lights, data->lights_count);
- }
-
- for (cgltf_size i = 0; i < data->scenes_count; ++i)
- {
- for (cgltf_size j = 0; j < data->scenes[i].nodes_count; ++j)
- {
- CGLTF_PTRFIXUP_REQ(data->scenes[i].nodes[j], data->nodes, data->nodes_count);
-
- if (data->scenes[i].nodes[j]->parent)
- {
- return CGLTF_ERROR_JSON;
- }
- }
- }
-
- CGLTF_PTRFIXUP(data->scene, data->scenes, data->scenes_count);
-
- for (cgltf_size i = 0; i < data->animations_count; ++i)
- {
- for (cgltf_size j = 0; j < data->animations[i].samplers_count; ++j)
- {
- CGLTF_PTRFIXUP_REQ(data->animations[i].samplers[j].input, data->accessors, data->accessors_count);
- CGLTF_PTRFIXUP_REQ(data->animations[i].samplers[j].output, data->accessors, data->accessors_count);
- }
-
- for (cgltf_size j = 0; j < data->animations[i].channels_count; ++j)
- {
- CGLTF_PTRFIXUP_REQ(data->animations[i].channels[j].sampler, data->animations[i].samplers, data->animations[i].samplers_count);
- CGLTF_PTRFIXUP(data->animations[i].channels[j].target_node, data->nodes, data->nodes_count);
- }
- }
-
- return 0;
-}
-
-/*
- * -- jsmn.c start --
- * Source: https://github.com/zserge/jsmn
- * License: MIT
- *
- * Copyright (c) 2010 Serge A. Zaitsev
-
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
-
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
-
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-/**
- * Allocates a fresh unused token from the token pull.
- */
-static jsmntok_t *jsmn_alloc_token(jsmn_parser *parser,
- jsmntok_t *tokens, size_t num_tokens) {
- jsmntok_t *tok;
- if (parser->toknext >= num_tokens) {
- return NULL;
- }
- tok = &tokens[parser->toknext++];
- tok->start = tok->end = -1;
- tok->size = 0;
-#ifdef JSMN_PARENT_LINKS
- tok->parent = -1;
-#endif
- return tok;
-}
-
-/**
- * Fills token type and boundaries.
- */
-static void jsmn_fill_token(jsmntok_t *token, jsmntype_t type,
- int start, int end) {
- token->type = type;
- token->start = start;
- token->end = end;
- token->size = 0;
-}
-
-/**
- * Fills next available token with JSON primitive.
- */
-static int jsmn_parse_primitive(jsmn_parser *parser, const char *js,
- size_t len, jsmntok_t *tokens, size_t num_tokens) {
- jsmntok_t *token;
- int start;
-
- start = parser->pos;
-
- for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) {
- switch (js[parser->pos]) {
-#ifndef JSMN_STRICT
- /* In strict mode primitive must be followed by "," or "}" or "]" */
- case ':':
-#endif
- case '\t' : case '\r' : case '\n' : case ' ' :
- case ',' : case ']' : case '}' :
- goto found;
- }
- if (js[parser->pos] < 32 || js[parser->pos] >= 127) {
- parser->pos = start;
- return JSMN_ERROR_INVAL;
- }
- }
-#ifdef JSMN_STRICT
- /* In strict mode primitive must be followed by a comma/object/array */
- parser->pos = start;
- return JSMN_ERROR_PART;
-#endif
-
-found:
- if (tokens == NULL) {
- parser->pos--;
- return 0;
- }
- token = jsmn_alloc_token(parser, tokens, num_tokens);
- if (token == NULL) {
- parser->pos = start;
- return JSMN_ERROR_NOMEM;
- }
- jsmn_fill_token(token, JSMN_PRIMITIVE, start, parser->pos);
-#ifdef JSMN_PARENT_LINKS
- token->parent = parser->toksuper;
-#endif
- parser->pos--;
- return 0;
-}
-
-/**
- * Fills next token with JSON string.
- */
-static int jsmn_parse_string(jsmn_parser *parser, const char *js,
- size_t len, jsmntok_t *tokens, size_t num_tokens) {
- jsmntok_t *token;
-
- int start = parser->pos;
-
- parser->pos++;
-
- /* Skip starting quote */
- for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) {
- char c = js[parser->pos];
-
- /* Quote: end of string */
- if (c == '\"') {
- if (tokens == NULL) {
- return 0;
- }
- token = jsmn_alloc_token(parser, tokens, num_tokens);
- if (token == NULL) {
- parser->pos = start;
- return JSMN_ERROR_NOMEM;
- }
- jsmn_fill_token(token, JSMN_STRING, start+1, parser->pos);
-#ifdef JSMN_PARENT_LINKS
- token->parent = parser->toksuper;
-#endif
- return 0;
- }
-
- /* Backslash: Quoted symbol expected */
- if (c == '\\' && parser->pos + 1 < len) {
- int i;
- parser->pos++;
- switch (js[parser->pos]) {
- /* Allowed escaped symbols */
- case '\"': case '/' : case '\\' : case 'b' :
- case 'f' : case 'r' : case 'n' : case 't' :
- break;
- /* Allows escaped symbol \uXXXX */
- case 'u':
- parser->pos++;
- for(i = 0; i < 4 && parser->pos < len && js[parser->pos] != '\0'; i++) {
- /* If it isn't a hex character we have an error */
- if(!((js[parser->pos] >= 48 && js[parser->pos] <= 57) || /* 0-9 */
- (js[parser->pos] >= 65 && js[parser->pos] <= 70) || /* A-F */
- (js[parser->pos] >= 97 && js[parser->pos] <= 102))) { /* a-f */
- parser->pos = start;
- return JSMN_ERROR_INVAL;
- }
- parser->pos++;
- }
- parser->pos--;
- break;
- /* Unexpected symbol */
- default:
- parser->pos = start;
- return JSMN_ERROR_INVAL;
- }
- }
- }
- parser->pos = start;
- return JSMN_ERROR_PART;
-}
-
-/**
- * Parse JSON string and fill tokens.
- */
-static int jsmn_parse(jsmn_parser *parser, const char *js, size_t len,
- jsmntok_t *tokens, size_t num_tokens) {
- int r;
- int i;
- jsmntok_t *token;
- int count = parser->toknext;
-
- for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) {
- char c;
- jsmntype_t type;
-
- c = js[parser->pos];
- switch (c) {
- case '{': case '[':
- count++;
- if (tokens == NULL) {
- break;
- }
- token = jsmn_alloc_token(parser, tokens, num_tokens);
- if (token == NULL)
- return JSMN_ERROR_NOMEM;
- if (parser->toksuper != -1) {
- tokens[parser->toksuper].size++;
-#ifdef JSMN_PARENT_LINKS
- token->parent = parser->toksuper;
-#endif
- }
- token->type = (c == '{' ? JSMN_OBJECT : JSMN_ARRAY);
- token->start = parser->pos;
- parser->toksuper = parser->toknext - 1;
- break;
- case '}': case ']':
- if (tokens == NULL)
- break;
- type = (c == '}' ? JSMN_OBJECT : JSMN_ARRAY);
-#ifdef JSMN_PARENT_LINKS
- if (parser->toknext < 1) {
- return JSMN_ERROR_INVAL;
- }
- token = &tokens[parser->toknext - 1];
- for (;;) {
- if (token->start != -1 && token->end == -1) {
- if (token->type != type) {
- return JSMN_ERROR_INVAL;
- }
- token->end = parser->pos + 1;
- parser->toksuper = token->parent;
- break;
- }
- if (token->parent == -1) {
- if(token->type != type || parser->toksuper == -1) {
- return JSMN_ERROR_INVAL;
- }
- break;
- }
- token = &tokens[token->parent];
- }
-#else
- for (i = parser->toknext - 1; i >= 0; i--) {
- token = &tokens[i];
- if (token->start != -1 && token->end == -1) {
- if (token->type != type) {
- return JSMN_ERROR_INVAL;
- }
- parser->toksuper = -1;
- token->end = parser->pos + 1;
- break;
- }
- }
- /* Error if unmatched closing bracket */
- if (i == -1) return JSMN_ERROR_INVAL;
- for (; i >= 0; i--) {
- token = &tokens[i];
- if (token->start != -1 && token->end == -1) {
- parser->toksuper = i;
- break;
- }
- }
-#endif
- break;
- case '\"':
- r = jsmn_parse_string(parser, js, len, tokens, num_tokens);
- if (r < 0) return r;
- count++;
- if (parser->toksuper != -1 && tokens != NULL)
- tokens[parser->toksuper].size++;
- break;
- case '\t' : case '\r' : case '\n' : case ' ':
- break;
- case ':':
- parser->toksuper = parser->toknext - 1;
- break;
- case ',':
- if (tokens != NULL && parser->toksuper != -1 &&
- tokens[parser->toksuper].type != JSMN_ARRAY &&
- tokens[parser->toksuper].type != JSMN_OBJECT) {
-#ifdef JSMN_PARENT_LINKS
- parser->toksuper = tokens[parser->toksuper].parent;
-#else
- for (i = parser->toknext - 1; i >= 0; i--) {
- if (tokens[i].type == JSMN_ARRAY || tokens[i].type == JSMN_OBJECT) {
- if (tokens[i].start != -1 && tokens[i].end == -1) {
- parser->toksuper = i;
- break;
- }
- }
- }
-#endif
- }
- break;
-#ifdef JSMN_STRICT
- /* In strict mode primitives are: numbers and booleans */
- case '-': case '0': case '1' : case '2': case '3' : case '4':
- case '5': case '6': case '7' : case '8': case '9':
- case 't': case 'f': case 'n' :
- /* And they must not be keys of the object */
- if (tokens != NULL && parser->toksuper != -1) {
- jsmntok_t *t = &tokens[parser->toksuper];
- if (t->type == JSMN_OBJECT ||
- (t->type == JSMN_STRING && t->size != 0)) {
- return JSMN_ERROR_INVAL;
- }
- }
-#else
- /* In non-strict mode every unquoted value is a primitive */
- default:
-#endif
- r = jsmn_parse_primitive(parser, js, len, tokens, num_tokens);
- if (r < 0) return r;
- count++;
- if (parser->toksuper != -1 && tokens != NULL)
- tokens[parser->toksuper].size++;
- break;
-
-#ifdef JSMN_STRICT
- /* Unexpected char in strict mode */
- default:
- return JSMN_ERROR_INVAL;
-#endif
- }
- }
-
- if (tokens != NULL) {
- for (i = parser->toknext - 1; i >= 0; i--) {
- /* Unmatched opened object or array */
- if (tokens[i].start != -1 && tokens[i].end == -1) {
- return JSMN_ERROR_PART;
- }
- }
- }
-
- return count;
-}
-
-/**
- * Creates a new parser based over a given buffer with an array of tokens
- * available.
- */
-static void jsmn_init(jsmn_parser *parser) {
- parser->pos = 0;
- parser->toknext = 0;
- parser->toksuper = -1;
-}
-/*
- * -- jsmn.c end --
- */
-
-#endif /* #ifdef CGLTF_IMPLEMENTATION */
-
-/* cgltf is distributed under MIT license:
- *
- * Copyright (c) 2018 Johannes Kuhlmann
-
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
-
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
-
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */