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+/**
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+ * cgltf - a single-file glTF 2.0 parser written in C99.
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+ *
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+ * Version: 1.2
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+ *
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+ * Website: https://github.com/jkuhlmann/cgltf
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+ *
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+ * Distributed under the MIT License, see notice at the end of this file.
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+ *
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+ * Building:
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+ * Include this file where you need the struct and function
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+ * declarations. Have exactly one source file where you define
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+ * `CGLTF_IMPLEMENTATION` before including this file to get the
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+ * function definitions.
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+ *
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+ * Reference:
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+ * `cgltf_result cgltf_parse(const cgltf_options*, const void*,
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+ * cgltf_size, cgltf_data**)` parses both glTF and GLB data. If
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+ * this function returns `cgltf_result_success`, you have to call
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+ * `cgltf_free()` on the created `cgltf_data*` variable.
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+ * Note that contents of external files for buffers and images are not
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+ * automatically loaded. You'll need to read these files yourself using
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+ * URIs in the `cgltf_data` structure.
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+ *
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+ * `cgltf_options` is the struct passed to `cgltf_parse()` to control
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+ * parts of the parsing process. You can use it to force the file type
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+ * and provide memory allocation callbacks. Should be zero-initialized
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+ * to trigger default behavior.
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+ *
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+ * `cgltf_data` is the struct allocated and filled by `cgltf_parse()`.
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+ * It generally mirrors the glTF format as described by the spec (see
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+ * https://github.com/KhronosGroup/glTF/tree/master/specification/2.0).
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+ *
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+ * `void cgltf_free(cgltf_data*)` frees the allocated `cgltf_data`
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+ * variable.
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+ *
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+ * `cgltf_result cgltf_load_buffers(const cgltf_options*, cgltf_data*,
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+ * const char* gltf_path)` can be optionally called to open and read buffer
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+ * files using the `FILE*` APIs. The `gltf_path` argument is the path to
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+ * the original glTF file, which allows the parser to resolve the path to
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+ * buffer files.
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+ *
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+ * `cgltf_result cgltf_load_buffer_base64(const cgltf_options* options,
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+ * cgltf_size size, const char* base64, void** out_data)` decodes
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+ * base64-encoded data content. Used internally by `cgltf_load_buffers()`
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+ * and may be useful if you're not dealing with normal files.
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+ *
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+ * `cgltf_result cgltf_parse_file(const cgltf_options* options, const
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+ * char* path, cgltf_data** out_data)` can be used to open the given
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+ * file using `FILE*` APIs and parse the data using `cgltf_parse()`.
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+ *
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+ * `cgltf_result cgltf_validate(cgltf_data*)` can be used to do additional
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+ * checks to make sure the parsed glTF data is valid.
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+ *
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+ * `cgltf_node_transform_local` converts the translation / rotation / scale properties of a node
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+ * into a mat4.
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+ *
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+ * `cgltf_node_transform_world` calls `cgltf_node_transform_local` on every ancestor in order
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+ * to compute the root-to-node transformation.
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+ *
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+ * `cgltf_accessor_read_float` reads a certain element from an accessor and converts it to
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+ * floating point, assuming that `cgltf_load_buffers` has already been called. The passed-in element
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+ * size is the number of floats in the output buffer, which should be in the range [1, 16]. Returns
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+ * false if the passed-in element_size is too small, or if the accessor is sparse.
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+ *
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+ * `cgltf_accessor_read_index` is similar to its floating-point counterpart, but it returns size_t
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+ * and only works with single-component data types.
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+ *
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+ * `cgltf_result cgltf_copy_extras_json(const cgltf_data*, const cgltf_extras*,
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+ * char* dest, cgltf_size* dest_size)` allows to retrieve the "extras" data that
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+ * can be attached to many glTF objects (which can be arbitrary JSON data). The
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+ * `cgltf_extras` struct stores the offsets of the start and end of the extras JSON data
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+ * as it appears in the complete glTF JSON data. This function copies the extras data
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+ * into the provided buffer. If `dest` is NULL, the length of the data is written into
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+ * `dest_size`. You can then parse this data using your own JSON parser
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+ * or, if you've included the cgltf implementation using the integrated JSMN JSON parser.
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+ */
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+#ifndef CGLTF_H_INCLUDED__
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+#define CGLTF_H_INCLUDED__
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+
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+#include <stddef.h>
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+
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+#ifdef __cplusplus
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+extern "C" {
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+#endif
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+
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+typedef size_t cgltf_size;
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+typedef float cgltf_float;
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+typedef int cgltf_int;
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+typedef int cgltf_bool;
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+
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+typedef enum cgltf_file_type
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+{
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+ cgltf_file_type_invalid,
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+ cgltf_file_type_gltf,
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+ cgltf_file_type_glb,
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+} cgltf_file_type;
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+
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+typedef struct cgltf_options
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+{
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+ cgltf_file_type type; /* invalid == auto detect */
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+ cgltf_size json_token_count; /* 0 == auto */
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+ void* (*memory_alloc)(void* user, cgltf_size size);
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+ void (*memory_free) (void* user, void* ptr);
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+ void* memory_user_data;
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+} cgltf_options;
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+
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+typedef enum cgltf_result
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+{
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+ cgltf_result_success,
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+ cgltf_result_data_too_short,
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+ cgltf_result_unknown_format,
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+ cgltf_result_invalid_json,
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+ cgltf_result_invalid_gltf,
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+ cgltf_result_invalid_options,
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+ cgltf_result_file_not_found,
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+ cgltf_result_io_error,
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+ cgltf_result_out_of_memory,
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+} cgltf_result;
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+
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+typedef enum cgltf_buffer_view_type
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+{
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+ cgltf_buffer_view_type_invalid,
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+ cgltf_buffer_view_type_indices,
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+ cgltf_buffer_view_type_vertices,
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+} cgltf_buffer_view_type;
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+
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+typedef enum cgltf_attribute_type
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+{
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+ cgltf_attribute_type_invalid,
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+ cgltf_attribute_type_position,
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+ cgltf_attribute_type_normal,
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+ cgltf_attribute_type_tangent,
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+ cgltf_attribute_type_texcoord,
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+ cgltf_attribute_type_color,
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+ cgltf_attribute_type_joints,
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+ cgltf_attribute_type_weights,
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+} cgltf_attribute_type;
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+
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+typedef enum cgltf_component_type
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+{
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+ cgltf_component_type_invalid,
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+ cgltf_component_type_r_8, /* BYTE */
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+ cgltf_component_type_r_8u, /* UNSIGNED_BYTE */
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+ cgltf_component_type_r_16, /* SHORT */
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+ cgltf_component_type_r_16u, /* UNSIGNED_SHORT */
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+ cgltf_component_type_r_32u, /* UNSIGNED_INT */
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+ cgltf_component_type_r_32f, /* FLOAT */
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+} cgltf_component_type;
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+
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+typedef enum cgltf_type
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+{
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+ cgltf_type_invalid,
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+ cgltf_type_scalar,
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+ cgltf_type_vec2,
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+ cgltf_type_vec3,
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+ cgltf_type_vec4,
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+ cgltf_type_mat2,
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+ cgltf_type_mat3,
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+ cgltf_type_mat4,
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+} cgltf_type;
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+
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+typedef enum cgltf_primitive_type
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+{
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+ cgltf_primitive_type_points,
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+ cgltf_primitive_type_lines,
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+ cgltf_primitive_type_line_loop,
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+ cgltf_primitive_type_line_strip,
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+ cgltf_primitive_type_triangles,
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+ cgltf_primitive_type_triangle_strip,
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+ cgltf_primitive_type_triangle_fan,
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+} cgltf_primitive_type;
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+
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+typedef enum cgltf_alpha_mode
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+{
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+ cgltf_alpha_mode_opaque,
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+ cgltf_alpha_mode_mask,
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+ cgltf_alpha_mode_blend,
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+} cgltf_alpha_mode;
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+
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+typedef enum cgltf_animation_path_type {
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+ cgltf_animation_path_type_invalid,
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+ cgltf_animation_path_type_translation,
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+ cgltf_animation_path_type_rotation,
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+ cgltf_animation_path_type_scale,
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+ cgltf_animation_path_type_weights,
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+} cgltf_animation_path_type;
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+
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+typedef enum cgltf_interpolation_type {
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+ cgltf_interpolation_type_linear,
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+ cgltf_interpolation_type_step,
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+ cgltf_interpolation_type_cubic_spline,
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+} cgltf_interpolation_type;
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+
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+typedef enum cgltf_camera_type {
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+ cgltf_camera_type_invalid,
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+ cgltf_camera_type_perspective,
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+ cgltf_camera_type_orthographic,
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+} cgltf_camera_type;
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+
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+typedef enum cgltf_light_type {
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+ cgltf_light_type_invalid,
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+ cgltf_light_type_directional,
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+ cgltf_light_type_point,
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+ cgltf_light_type_spot,
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+} cgltf_light_type;
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+
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+typedef struct cgltf_extras {
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+ cgltf_size start_offset;
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+ cgltf_size end_offset;
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+} cgltf_extras;
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+
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+typedef struct cgltf_buffer
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+{
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+ cgltf_size size;
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+ char* uri;
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+ void* data; /* loaded by cgltf_load_buffers */
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+ cgltf_extras extras;
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+} cgltf_buffer;
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+
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+typedef struct cgltf_buffer_view
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+{
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+ cgltf_buffer* buffer;
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+ cgltf_size offset;
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+ cgltf_size size;
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+ cgltf_size stride; /* 0 == automatically determined by accessor */
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+ cgltf_buffer_view_type type;
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+ cgltf_extras extras;
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+} cgltf_buffer_view;
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+
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+typedef struct cgltf_accessor_sparse
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+{
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+ cgltf_size count;
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+ cgltf_buffer_view* indices_buffer_view;
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+ cgltf_size indices_byte_offset;
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+ cgltf_component_type indices_component_type;
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+ cgltf_buffer_view* values_buffer_view;
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+ cgltf_size values_byte_offset;
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+ cgltf_extras extras;
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+ cgltf_extras indices_extras;
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+ cgltf_extras values_extras;
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+} cgltf_accessor_sparse;
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+
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+typedef struct cgltf_accessor
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+{
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+ cgltf_component_type component_type;
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+ cgltf_bool normalized;
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+ cgltf_type type;
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+ cgltf_size offset;
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+ cgltf_size count;
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+ cgltf_size stride;
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+ cgltf_buffer_view* buffer_view;
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+ cgltf_bool has_min;
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+ cgltf_float min[16];
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+ cgltf_bool has_max;
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+ cgltf_float max[16];
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+ cgltf_bool is_sparse;
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+ cgltf_accessor_sparse sparse;
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+ cgltf_extras extras;
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+} cgltf_accessor;
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+
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+typedef struct cgltf_attribute
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+{
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+ char* name;
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+ cgltf_attribute_type type;
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+ cgltf_int index;
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+ cgltf_accessor* data;
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+} cgltf_attribute;
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+
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+typedef struct cgltf_image
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+{
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+ char* name;
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+ char* uri;
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+ cgltf_buffer_view* buffer_view;
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+ char* mime_type;
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+ cgltf_extras extras;
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+} cgltf_image;
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+
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+typedef struct cgltf_sampler
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+{
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+ cgltf_int mag_filter;
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+ cgltf_int min_filter;
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+ cgltf_int wrap_s;
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+ cgltf_int wrap_t;
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+ cgltf_extras extras;
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+} cgltf_sampler;
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+
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+typedef struct cgltf_texture
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+{
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+ char* name;
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+ cgltf_image* image;
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+ cgltf_sampler* sampler;
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+ cgltf_extras extras;
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+} cgltf_texture;
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+
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+typedef struct cgltf_texture_transform
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+{
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+ cgltf_float offset[2];
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+ cgltf_float rotation;
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+ cgltf_float scale[2];
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+ cgltf_int texcoord;
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+} cgltf_texture_transform;
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+
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+typedef struct cgltf_texture_view
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+{
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+ cgltf_texture* texture;
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+ cgltf_int texcoord;
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+ cgltf_float scale; /* equivalent to strength for occlusion_texture */
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+ cgltf_bool has_transform;
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+ cgltf_texture_transform transform;
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+ cgltf_extras extras;
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+} cgltf_texture_view;
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+
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+typedef struct cgltf_pbr_metallic_roughness
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+{
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+ cgltf_texture_view base_color_texture;
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+ cgltf_texture_view metallic_roughness_texture;
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+
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+ cgltf_float base_color_factor[4];
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+ cgltf_float metallic_factor;
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+ cgltf_float roughness_factor;
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+
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+ cgltf_extras extras;
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+} cgltf_pbr_metallic_roughness;
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+
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+typedef struct cgltf_pbr_specular_glossiness
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+{
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+ cgltf_texture_view diffuse_texture;
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+ cgltf_texture_view specular_glossiness_texture;
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+
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+ cgltf_float diffuse_factor[4];
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+ cgltf_float specular_factor[3];
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+ cgltf_float glossiness_factor;
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+} cgltf_pbr_specular_glossiness;
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+
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+typedef struct cgltf_material
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+{
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+ char* name;
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+ cgltf_bool has_pbr_metallic_roughness;
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+ cgltf_bool has_pbr_specular_glossiness;
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+ cgltf_pbr_metallic_roughness pbr_metallic_roughness;
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+ cgltf_pbr_specular_glossiness pbr_specular_glossiness;
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+ cgltf_texture_view normal_texture;
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+ cgltf_texture_view occlusion_texture;
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+ cgltf_texture_view emissive_texture;
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+ cgltf_float emissive_factor[3];
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+ cgltf_alpha_mode alpha_mode;
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+ cgltf_float alpha_cutoff;
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+ cgltf_bool double_sided;
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+ cgltf_bool unlit;
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+ cgltf_extras extras;
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+} cgltf_material;
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+
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+typedef struct cgltf_morph_target {
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+ cgltf_attribute* attributes;
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+ cgltf_size attributes_count;
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+} cgltf_morph_target;
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+
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+typedef struct cgltf_primitive {
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+ cgltf_primitive_type type;
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+ cgltf_accessor* indices;
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+ cgltf_material* material;
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+ cgltf_attribute* attributes;
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+ cgltf_size attributes_count;
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+ cgltf_morph_target* targets;
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+ cgltf_size targets_count;
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+ cgltf_extras extras;
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+} cgltf_primitive;
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+
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+typedef struct cgltf_mesh {
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+ char* name;
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+ cgltf_primitive* primitives;
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+ cgltf_size primitives_count;
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+ cgltf_float* weights;
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+ cgltf_size weights_count;
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+ cgltf_extras extras;
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+} cgltf_mesh;
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+
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+typedef struct cgltf_node cgltf_node;
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+
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+typedef struct cgltf_skin {
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+ char* name;
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+ cgltf_node** joints;
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+ cgltf_size joints_count;
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+ cgltf_node* skeleton;
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+ 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;
|
|
|
+ };
|
|
|
+ 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;
|
|
|
+
|
|
|
+typedef 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;
|
|
|
+} cgltf_node;
|
|
|
+
|
|
|
+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;
|
|
|
+
|
|
|
+ void (*memory_free) (void* user, void* ptr);
|
|
|
+ void* memory_user_data;
|
|
|
+} 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_size cgltf_accessor_read_index(const cgltf_accessor* accessor, cgltf_size index);
|
|
|
+
|
|
|
+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 <stdlib.h> /* For malloc, free */
|
|
|
+#include <stdio.h> /* For fopen */
|
|
|
+#include <limits.h> /* For UINT_MAX etc */
|
|
|
+
|
|
|
+/* 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;
|
|
|
+
|
|
|
+static void* cgltf_default_alloc(void* user, cgltf_size size)
|
|
|
+{
|
|
|
+ (void)user;
|
|
|
+ return malloc(size);
|
|
|
+}
|
|
|
+
|
|
|
+static void cgltf_default_free(void* user, void* ptr)
|
|
|
+{
|
|
|
+ (void)user;
|
|
|
+ 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_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 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;
|
|
|
+
|
|
|
+ FILE* file = fopen(path, "rb");
|
|
|
+ if (!file)
|
|
|
+ {
|
|
|
+ return cgltf_result_file_not_found;
|
|
|
+ }
|
|
|
+
|
|
|
+ fseek(file, 0, SEEK_END);
|
|
|
+
|
|
|
+ long length = ftell(file);
|
|
|
+ if (length < 0)
|
|
|
+ {
|
|
|
+ fclose(file);
|
|
|
+ return cgltf_result_io_error;
|
|
|
+ }
|
|
|
+
|
|
|
+ fseek(file, 0, SEEK_SET);
|
|
|
+
|
|
|
+ char* file_data = (char*)memory_alloc(options->memory_user_data, length);
|
|
|
+ if (!file_data)
|
|
|
+ {
|
|
|
+ fclose(file);
|
|
|
+ return cgltf_result_out_of_memory;
|
|
|
+ }
|
|
|
+
|
|
|
+ cgltf_size file_size = (cgltf_size)length;
|
|
|
+ cgltf_size read_size = fread(file_data, 1, file_size, file);
|
|
|
+
|
|
|
+ fclose(file);
|
|
|
+
|
|
|
+ if (read_size != file_size)
|
|
|
+ {
|
|
|
+ memory_free(options->memory_user_data, file_data);
|
|
|
+ return cgltf_result_io_error;
|
|
|
+ }
|
|
|
+
|
|
|
+ cgltf_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;
|
|
|
+
|
|
|
+ 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);
|
|
|
+
|
|
|
+ FILE* file = fopen(path, "rb");
|
|
|
+
|
|
|
+ memory_free(options->memory_user_data, path);
|
|
|
+
|
|
|
+ if (!file)
|
|
|
+ {
|
|
|
+ return cgltf_result_file_not_found;
|
|
|
+ }
|
|
|
+
|
|
|
+ char* file_data = (char*)memory_alloc(options->memory_user_data, size);
|
|
|
+ if (!file_data)
|
|
|
+ {
|
|
|
+ fclose(file);
|
|
|
+ return cgltf_result_out_of_memory;
|
|
|
+ }
|
|
|
+
|
|
|
+ cgltf_size read_size = fread(file_data, 1, size, file);
|
|
|
+
|
|
|
+ fclose(file);
|
|
|
+
|
|
|
+ if (read_size != size)
|
|
|
+ {
|
|
|
+ memory_free(options->memory_user_data, file_data);
|
|
|
+ return cgltf_result_io_error;
|
|
|
+ }
|
|
|
+
|
|
|
+ *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;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ 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;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ 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;
|
|
|
+ }
|
|
|
+
|
|
|
+ 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)
|
|
|
+ {
|
|
|
+ data->memory_free(data->memory_user_data, 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);
|
|
|
+ }
|
|
|
+
|
|
|
+ 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);
|
|
|
+
|
|
|
+ data->memory_free(data->memory_user_data, 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) * sy;
|
|
|
+ lm[2] = (2 * qx*qz - 2 * qy*qw) * sz;
|
|
|
+ lm[3] = 0.f;
|
|
|
+
|
|
|
+ lm[4] = (2 * qx*qy - 2 * qz*qw) * sx;
|
|
|
+ lm[5] = (1 - 2 * qx*qx - 2 * qz*qz) * sy;
|
|
|
+ lm[6] = (2 * qy*qz + 2 * qx*qw) * sz;
|
|
|
+ lm[7] = 0.f;
|
|
|
+
|
|
|
+ lm[8] = (2 * qx*qz + 2 * qy*qw) * sx;
|
|
|
+ lm[9] = (2 * qy*qz - 2 * qx*qw) * sy;
|
|
|
+ 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:
|
|
|
+ case cgltf_component_type_invalid:
|
|
|
+ default:
|
|
|
+ return *((const uint8_t*) in);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+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)
|
|
|
+ {
|
|
|
+ case cgltf_component_type_r_32u:
|
|
|
+ return *((const uint32_t*) in) / (float) UINT_MAX;
|
|
|
+ case cgltf_component_type_r_16:
|
|
|
+ return *((const int16_t*) in) / (float) SHRT_MAX;
|
|
|
+ case cgltf_component_type_r_16u:
|
|
|
+ return *((const uint16_t*) in) / (float) USHRT_MAX;
|
|
|
+ case cgltf_component_type_r_8:
|
|
|
+ return *((const int8_t*) in) / (float) SCHAR_MAX;
|
|
|
+ case cgltf_component_type_r_8u:
|
|
|
+ case cgltf_component_type_invalid:
|
|
|
+ default:
|
|
|
+ return *((const uint8_t*) in) / (float) CHAR_MAX;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return (cgltf_float)cgltf_component_read_index(in, component_type);
|
|
|
+}
|
|
|
+
|
|
|
+static cgltf_size cgltf_num_components(cgltf_type 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 || accessor->buffer_view == 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_read_index(const cgltf_accessor* accessor, cgltf_size index)
|
|
|
+{
|
|
|
+ if (accessor->buffer_view)
|
|
|
+ {
|
|
|
+ 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);
|
|
|
+ }
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+#define CGLTF_ERROR_JSON -1
|
|
|
+#define CGLTF_ERROR_NOMEM -2
|
|
|
+
|
|
|
+#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 : sizeof(tmp) - 1;
|
|
|
+ strncpy(tmp, (const char*)json_chunk + tok->start, size);
|
|
|
+ tmp[size] = 0;
|
|
|
+ return 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 : sizeof(tmp) - 1;
|
|
|
+ strncpy(tmp, (const char*)json_chunk + tok->start, size);
|
|
|
+ tmp[size] = 0;
|
|
|
+ return (cgltf_float)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;
|
|
|
+ CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_ARRAY);
|
|
|
+ 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 ? 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 = 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 = cgltf_parse_json_extras(tokens, i + 1, json_chunk, &out_mesh->extras);
|
|
|
+ }
|
|
|
+ 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->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->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->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->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->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->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->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->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->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->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;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return i;
|
|
|
+}
|
|
|
+
|
|
|
+static 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_free = options->memory_free;
|
|
|
+ data->memory_user_data = options->memory_user_data;
|
|
|
+
|
|
|
+ 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);
|
|
|
+ return (i == CGLTF_ERROR_NOMEM) ? cgltf_result_out_of_memory : 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.
|
|
|
+ */
|
Бранимир Караџић