From 2d604425277f56c98a5c8351914178480f68bc23 Mon Sep 17 00:00:00 2001 From: 3gg <3gg@shellblade.net> Date: Fri, 6 Mar 2026 13:30:21 -0800 Subject: Move contrib libraries to contrib repo --- contrib/cgltf/cgltf_write.h | 1173 ------------------------------------------- 1 file changed, 1173 deletions(-) delete mode 100644 contrib/cgltf/cgltf_write.h (limited to 'contrib/cgltf/cgltf_write.h') diff --git a/contrib/cgltf/cgltf_write.h b/contrib/cgltf/cgltf_write.h deleted file mode 100644 index 2096a5b..0000000 --- a/contrib/cgltf/cgltf_write.h +++ /dev/null @@ -1,1173 +0,0 @@ -/** - * cgltf_write - a single-file glTF 2.0 writer written in C99. - * - * Version: 1.7 - * - * Website: https://github.com/jkuhlmann/cgltf - * - * Distributed under the MIT License, see notice at the end of this file. - * - * Building: - * Include this file where you need the struct and function - * declarations. Have exactly one source file where you define - * `CGLTF_WRITE_IMPLEMENTATION` before including this file to get the - * function definitions. - * - * Reference: - * `cgltf_result cgltf_write_file(const cgltf_options* options, const char* - * path, const cgltf_data* data)` writes JSON to the given file path. Buffer - * files and external images are not written out. `data` is not deallocated. - * - * `cgltf_size cgltf_write(const cgltf_options* options, char* buffer, - * cgltf_size size, const cgltf_data* data)` writes JSON into the given memory - * buffer. Returns the number of bytes written to `buffer`, including a null - * terminator. If buffer is null, returns the number of bytes that would have - * been written. `data` is not deallocated. - * - * To write custom JSON into the `extras` field, aggregate all the custom JSON - * into a single buffer, then set `file_data` to this buffer. By supplying - * start_offset and end_offset values for various objects, you can select a - * range of characters within the aggregated buffer. - */ -#ifndef CGLTF_WRITE_H_INCLUDED__ -#define CGLTF_WRITE_H_INCLUDED__ - -#include "cgltf.h" - -#include -#include - -#ifdef __cplusplus -extern "C" { -#endif - -cgltf_result cgltf_write_file(const cgltf_options* options, const char* path, const cgltf_data* data); -cgltf_size cgltf_write(const cgltf_options* options, char* buffer, cgltf_size size, const cgltf_data* data); - -#ifdef __cplusplus -} -#endif - -#endif /* #ifndef CGLTF_WRITE_H_INCLUDED__ */ - -/* - * - * Stop now, if you are only interested in the API. - * Below, you find the implementation. - * - */ - -#if defined(__INTELLISENSE__) || defined(__JETBRAINS_IDE__) -/* This makes MSVC/CLion intellisense work. */ -#define CGLTF_IMPLEMENTATION -#endif - -#ifdef CGLTF_WRITE_IMPLEMENTATION - -#include -#include -#include -#include - -#define CGLTF_EXTENSION_FLAG_TEXTURE_TRANSFORM (1 << 0) -#define CGLTF_EXTENSION_FLAG_MATERIALS_UNLIT (1 << 1) -#define CGLTF_EXTENSION_FLAG_SPECULAR_GLOSSINESS (1 << 2) -#define CGLTF_EXTENSION_FLAG_LIGHTS_PUNCTUAL (1 << 3) -#define CGLTF_EXTENSION_FLAG_DRACO_MESH_COMPRESSION (1 << 4) -#define CGLTF_EXTENSION_FLAG_MATERIALS_CLEARCOAT (1 << 5) -#define CGLTF_EXTENSION_FLAG_MATERIALS_IOR (1 << 6) -#define CGLTF_EXTENSION_FLAG_MATERIALS_SPECULAR (1 << 7) -#define CGLTF_EXTENSION_FLAG_MATERIALS_TRANSMISSION (1 << 8) - -typedef struct { - char* buffer; - cgltf_size buffer_size; - cgltf_size remaining; - char* cursor; - cgltf_size tmp; - cgltf_size chars_written; - const cgltf_data* data; - int depth; - const char* indent; - int needs_comma; - uint32_t extension_flags; - uint32_t required_extension_flags; -} cgltf_write_context; - -#define CGLTF_MIN(a, b) (a < b ? a : b) - -#define CGLTF_SPRINTF(...) { \ - context->tmp = snprintf ( context->cursor, context->remaining, __VA_ARGS__ ); \ - context->chars_written += context->tmp; \ - if (context->cursor) { \ - context->cursor += context->tmp; \ - context->remaining -= context->tmp; \ - } } - -#define CGLTF_SNPRINTF(length, ...) { \ - context->tmp = snprintf ( context->cursor, CGLTF_MIN(length + 1, context->remaining), __VA_ARGS__ ); \ - context->chars_written += length; \ - if (context->cursor) { \ - context->cursor += length; \ - context->remaining -= length; \ - } } - -#define CGLTF_WRITE_IDXPROP(label, val, start) if (val) { \ - cgltf_write_indent(context); \ - CGLTF_SPRINTF("\"%s\": %d", label, (int) (val - start)); \ - context->needs_comma = 1; } - -#define CGLTF_WRITE_IDXARRPROP(label, dim, vals, start) if (vals) { \ - cgltf_write_indent(context); \ - CGLTF_SPRINTF("\"%s\": [", label); \ - for (int i = 0; i < (int)(dim); ++i) { \ - int idx = (int) (vals[i] - start); \ - if (i != 0) CGLTF_SPRINTF(","); \ - CGLTF_SPRINTF(" %d", idx); \ - } \ - CGLTF_SPRINTF(" ]"); \ - context->needs_comma = 1; } - -#define CGLTF_WRITE_TEXTURE_INFO(label, info) if (info.texture) { \ - cgltf_write_line(context, "\"" label "\": {"); \ - CGLTF_WRITE_IDXPROP("index", info.texture, context->data->textures); \ - cgltf_write_intprop(context, "texCoord", info.texcoord, 0); \ - cgltf_write_floatprop(context, "scale", info.scale, 1.0f); \ - if (info.has_transform) { \ - context->extension_flags |= CGLTF_EXTENSION_FLAG_TEXTURE_TRANSFORM; \ - cgltf_write_texture_transform(context, &info.transform); \ - } \ - cgltf_write_extras(context, &info.extras); \ - cgltf_write_line(context, "}"); } - -static void cgltf_write_indent(cgltf_write_context* context) -{ - if (context->needs_comma) - { - CGLTF_SPRINTF(",\n"); - context->needs_comma = 0; - } - else - { - CGLTF_SPRINTF("\n"); - } - for (int i = 0; i < context->depth; ++i) - { - CGLTF_SPRINTF("%s", context->indent); - } -} - -static void cgltf_write_line(cgltf_write_context* context, const char* line) -{ - if (line[0] == ']' || line[0] == '}') - { - --context->depth; - context->needs_comma = 0; - } - cgltf_write_indent(context); - CGLTF_SPRINTF("%s", line); - cgltf_size last = (cgltf_size)(strlen(line) - 1); - if (line[0] == ']' || line[0] == '}') - { - context->needs_comma = 1; - } - if (line[last] == '[' || line[last] == '{') - { - ++context->depth; - context->needs_comma = 0; - } -} - -static void cgltf_write_strprop(cgltf_write_context* context, const char* label, const char* val) -{ - if (val) - { - cgltf_write_indent(context); - CGLTF_SPRINTF("\"%s\": \"%s\"", label, val); - context->needs_comma = 1; - } -} - -static void cgltf_write_extras(cgltf_write_context* context, const cgltf_extras* extras) -{ - cgltf_size length = extras->end_offset - extras->start_offset; - if (length > 0 && context->data->file_data) - { - char* json_string = ((char*) context->data->file_data) + extras->start_offset; - cgltf_write_indent(context); - CGLTF_SPRINTF("%s", "\"extras\": "); - CGLTF_SNPRINTF(length, "%s", json_string); - context->needs_comma = 1; - } -} - -static void cgltf_write_stritem(cgltf_write_context* context, const char* item) -{ - cgltf_write_indent(context); - CGLTF_SPRINTF("\"%s\"", item); - context->needs_comma = 1; -} - -static void cgltf_write_intprop(cgltf_write_context* context, const char* label, int val, int def) -{ - if (val != def) - { - cgltf_write_indent(context); - CGLTF_SPRINTF("\"%s\": %d", label, val); - context->needs_comma = 1; - } -} - -static void cgltf_write_floatprop(cgltf_write_context* context, const char* label, float val, float def) -{ - if (val != def) - { - cgltf_write_indent(context); - CGLTF_SPRINTF("\"%s\": ", label); - CGLTF_SPRINTF("%g", val); - context->needs_comma = 1; - - if (context->cursor) - { - char *decimal_comma = strchr(context->cursor - context->tmp, ','); - if (decimal_comma) - { - *decimal_comma = '.'; - } - } - } -} - -static void cgltf_write_boolprop_optional(cgltf_write_context* context, const char* label, bool val, bool def) -{ - if (val != def) - { - cgltf_write_indent(context); - CGLTF_SPRINTF("\"%s\": %s", label, val ? "true" : "false"); - context->needs_comma = 1; - } -} - -static void cgltf_write_floatarrayprop(cgltf_write_context* context, const char* label, const cgltf_float* vals, cgltf_size dim) -{ - cgltf_write_indent(context); - CGLTF_SPRINTF("\"%s\": [", label); - for (cgltf_size i = 0; i < dim; ++i) - { - if (i != 0) - { - CGLTF_SPRINTF(", %g", vals[i]); - } - else - { - CGLTF_SPRINTF("%g", vals[i]); - } - } - CGLTF_SPRINTF("]"); - context->needs_comma = 1; -} - -static bool cgltf_check_floatarray(const float* vals, int dim, float val) { - while (dim--) - { - if (vals[dim] != val) - { - return true; - } - } - return false; -} - -static int cgltf_int_from_component_type(cgltf_component_type ctype) -{ - switch (ctype) - { - case cgltf_component_type_r_8: return 5120; - case cgltf_component_type_r_8u: return 5121; - case cgltf_component_type_r_16: return 5122; - case cgltf_component_type_r_16u: return 5123; - case cgltf_component_type_r_32u: return 5125; - case cgltf_component_type_r_32f: return 5126; - default: return 0; - } -} - -static const char* cgltf_str_from_alpha_mode(cgltf_alpha_mode alpha_mode) -{ - switch (alpha_mode) - { - case cgltf_alpha_mode_mask: return "MASK"; - case cgltf_alpha_mode_blend: return "BLEND"; - default: return NULL; - } -} - -static const char* cgltf_str_from_type(cgltf_type type) -{ - switch (type) - { - case cgltf_type_scalar: return "SCALAR"; - case cgltf_type_vec2: return "VEC2"; - case cgltf_type_vec3: return "VEC3"; - case cgltf_type_vec4: return "VEC4"; - case cgltf_type_mat2: return "MAT2"; - case cgltf_type_mat3: return "MAT3"; - case cgltf_type_mat4: return "MAT4"; - default: return NULL; - } -} - -static cgltf_size cgltf_dim_from_type(cgltf_type type) -{ - switch (type) - { - case cgltf_type_scalar: return 1; - 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; - default: return 0; - } -} - -static const char* cgltf_str_from_camera_type(cgltf_camera_type camera_type) -{ - switch (camera_type) - { - case cgltf_camera_type_perspective: return "perspective"; - case cgltf_camera_type_orthographic: return "orthographic"; - default: return NULL; - } -} - -static const char* cgltf_str_from_light_type(cgltf_light_type light_type) -{ - switch (light_type) - { - case cgltf_light_type_directional: return "directional"; - case cgltf_light_type_point: return "point"; - case cgltf_light_type_spot: return "spot"; - default: return NULL; - } -} - -static void cgltf_write_texture_transform(cgltf_write_context* context, const cgltf_texture_transform* transform) -{ - cgltf_write_line(context, "\"extensions\": {"); - cgltf_write_line(context, "\"KHR_texture_transform\": {"); - if (cgltf_check_floatarray(transform->offset, 2, 0.0f)) - { - cgltf_write_floatarrayprop(context, "offset", transform->offset, 2); - } - cgltf_write_floatprop(context, "rotation", transform->rotation, 0.0f); - if (cgltf_check_floatarray(transform->scale, 2, 1.0f)) - { - cgltf_write_floatarrayprop(context, "scale", transform->scale, 2); - } - cgltf_write_intprop(context, "texCoord", transform->texcoord, 0); - cgltf_write_line(context, "}"); - cgltf_write_line(context, "}"); -} - -static void cgltf_write_asset(cgltf_write_context* context, const cgltf_asset* asset) -{ - cgltf_write_line(context, "\"asset\": {"); - cgltf_write_strprop(context, "copyright", asset->copyright); - cgltf_write_strprop(context, "generator", asset->generator); - cgltf_write_strprop(context, "version", asset->version); - cgltf_write_strprop(context, "min_version", asset->min_version); - cgltf_write_extras(context, &asset->extras); - cgltf_write_line(context, "}"); -} - -static void cgltf_write_primitive(cgltf_write_context* context, const cgltf_primitive* prim) -{ - cgltf_write_intprop(context, "mode", (int) prim->type, 4); - CGLTF_WRITE_IDXPROP("indices", prim->indices, context->data->accessors); - CGLTF_WRITE_IDXPROP("material", prim->material, context->data->materials); - cgltf_write_line(context, "\"attributes\": {"); - for (cgltf_size i = 0; i < prim->attributes_count; ++i) - { - const cgltf_attribute* attr = prim->attributes + i; - CGLTF_WRITE_IDXPROP(attr->name, attr->data, context->data->accessors); - } - cgltf_write_line(context, "}"); - - if (prim->targets_count) - { - cgltf_write_line(context, "\"targets\": ["); - for (cgltf_size i = 0; i < prim->targets_count; ++i) - { - cgltf_write_line(context, "{"); - for (cgltf_size j = 0; j < prim->targets[i].attributes_count; ++j) - { - const cgltf_attribute* attr = prim->targets[i].attributes + j; - CGLTF_WRITE_IDXPROP(attr->name, attr->data, context->data->accessors); - } - cgltf_write_line(context, "}"); - } - cgltf_write_line(context, "]"); - } - cgltf_write_extras(context, &prim->extras); - - cgltf_bool has_extensions = prim->has_draco_mesh_compression; - if (has_extensions) { - cgltf_write_line(context, "\"extensions\": {"); - - if (prim->has_draco_mesh_compression) { - context->extension_flags |= CGLTF_EXTENSION_FLAG_DRACO_MESH_COMPRESSION; - if (prim->attributes_count == 0 || prim->indices == 0) { - context->required_extension_flags |= CGLTF_EXTENSION_FLAG_DRACO_MESH_COMPRESSION; - } - - cgltf_write_line(context, "\"KHR_draco_mesh_compression\": {"); - CGLTF_WRITE_IDXPROP("bufferView", prim->draco_mesh_compression.buffer_view, context->data->buffer_views); - cgltf_write_line(context, "\"attributes\": {"); - for (cgltf_size i = 0; i < prim->draco_mesh_compression.attributes_count; ++i) - { - const cgltf_attribute* attr = prim->draco_mesh_compression.attributes + i; - CGLTF_WRITE_IDXPROP(attr->name, attr->data, context->data->accessors); - } - cgltf_write_line(context, "}"); - cgltf_write_line(context, "}"); - } - - cgltf_write_line(context, "}"); - } -} - -static void cgltf_write_mesh(cgltf_write_context* context, const cgltf_mesh* mesh) -{ - cgltf_write_line(context, "{"); - cgltf_write_strprop(context, "name", mesh->name); - - cgltf_write_line(context, "\"primitives\": ["); - for (cgltf_size i = 0; i < mesh->primitives_count; ++i) - { - cgltf_write_line(context, "{"); - cgltf_write_primitive(context, mesh->primitives + i); - cgltf_write_line(context, "}"); - } - cgltf_write_line(context, "]"); - - if (mesh->weights_count > 0) - { - cgltf_write_floatarrayprop(context, "weights", mesh->weights, mesh->weights_count); - } - cgltf_write_extras(context, &mesh->extras); - cgltf_write_line(context, "}"); -} - -static void cgltf_write_buffer_view(cgltf_write_context* context, const cgltf_buffer_view* view) -{ - cgltf_write_line(context, "{"); - CGLTF_WRITE_IDXPROP("buffer", view->buffer, context->data->buffers); - cgltf_write_intprop(context, "byteLength", (int)view->size, -1); - cgltf_write_intprop(context, "byteOffset", (int)view->offset, 0); - cgltf_write_intprop(context, "byteStride", (int)view->stride, 0); - // NOTE: We skip writing "target" because the spec says its usage can be inferred. - cgltf_write_extras(context, &view->extras); - cgltf_write_line(context, "}"); -} - - -static void cgltf_write_buffer(cgltf_write_context* context, const cgltf_buffer* buffer) -{ - cgltf_write_line(context, "{"); - cgltf_write_strprop(context, "uri", buffer->uri); - cgltf_write_intprop(context, "byteLength", (int)buffer->size, -1); - cgltf_write_extras(context, &buffer->extras); - cgltf_write_line(context, "}"); -} - -static void cgltf_write_material(cgltf_write_context* context, const cgltf_material* material) -{ - cgltf_write_line(context, "{"); - cgltf_write_strprop(context, "name", material->name); - cgltf_write_floatprop(context, "alphaCutoff", material->alpha_cutoff, 0.5f); - cgltf_write_boolprop_optional(context, "doubleSided", material->double_sided, false); - // cgltf_write_boolprop_optional(context, "unlit", material->unlit, false); - - if (material->unlit) - { - context->extension_flags |= CGLTF_EXTENSION_FLAG_MATERIALS_UNLIT; - } - - if (material->has_pbr_specular_glossiness) - { - context->extension_flags |= CGLTF_EXTENSION_FLAG_SPECULAR_GLOSSINESS; - } - - if (material->has_clearcoat) - { - context->extension_flags |= CGLTF_EXTENSION_FLAG_MATERIALS_CLEARCOAT; - } - - if (material->has_transmission) - { - context->extension_flags |= CGLTF_EXTENSION_FLAG_MATERIALS_TRANSMISSION; - } - - if (material->has_ior) - { - context->extension_flags |= CGLTF_EXTENSION_FLAG_MATERIALS_IOR; - } - - if (material->has_specular) - { - context->extension_flags |= CGLTF_EXTENSION_FLAG_MATERIALS_SPECULAR; - } - - if (material->has_pbr_metallic_roughness) - { - const cgltf_pbr_metallic_roughness* params = &material->pbr_metallic_roughness; - cgltf_write_line(context, "\"pbrMetallicRoughness\": {"); - CGLTF_WRITE_TEXTURE_INFO("baseColorTexture", params->base_color_texture); - CGLTF_WRITE_TEXTURE_INFO("metallicRoughnessTexture", params->metallic_roughness_texture); - cgltf_write_floatprop(context, "metallicFactor", params->metallic_factor, 1.0f); - cgltf_write_floatprop(context, "roughnessFactor", params->roughness_factor, 1.0f); - if (cgltf_check_floatarray(params->base_color_factor, 4, 1.0f)) - { - cgltf_write_floatarrayprop(context, "baseColorFactor", params->base_color_factor, 4); - } - cgltf_write_extras(context, ¶ms->extras); - cgltf_write_line(context, "}"); - } - - if (material->unlit || material->has_pbr_specular_glossiness || material->has_clearcoat || material->has_ior || material->has_specular || material->has_transmission) - { - cgltf_write_line(context, "\"extensions\": {"); - if (material->has_clearcoat) - { - const cgltf_clearcoat* params = &material->clearcoat; - cgltf_write_line(context, "\"KHR_materials_clearcoat\": {"); - CGLTF_WRITE_TEXTURE_INFO("clearcoatTexture", params->clearcoat_texture); - CGLTF_WRITE_TEXTURE_INFO("clearcoatRoughnessTexture", params->clearcoat_roughness_texture); - CGLTF_WRITE_TEXTURE_INFO("clearcoatNormalTexture", params->clearcoat_normal_texture); - cgltf_write_floatprop(context, "clearcoatFactor", params->clearcoat_factor, 0.0f); - cgltf_write_floatprop(context, "clearcoatRoughnessFactor", params->clearcoat_roughness_factor, 0.0f); - cgltf_write_line(context, "}"); - } - if (material->has_ior) - { - const cgltf_ior* params = &material->ior; - cgltf_write_line(context, "\"KHR_materials_ior\": {"); - cgltf_write_floatprop(context, "ior", params->ior, 1.5f); - cgltf_write_line(context, "}"); - } - if (material->has_specular) - { - const cgltf_specular* params = &material->specular; - cgltf_write_line(context, "\"KHR_materials_specular\": {"); - CGLTF_WRITE_TEXTURE_INFO("specularTexture", params->specular_texture); - cgltf_write_floatprop(context, "specularFactor", params->specular_factor, 1.0f); - if (cgltf_check_floatarray(params->specular_color_factor, 3, 1.0f)) - { - cgltf_write_floatarrayprop(context, "specularColorFactor", params->specular_color_factor, 3); - } - cgltf_write_line(context, "}"); - } - if (material->has_transmission) - { - const cgltf_transmission* params = &material->transmission; - cgltf_write_line(context, "\"KHR_materials_transmission\": {"); - CGLTF_WRITE_TEXTURE_INFO("transmissionTexture", params->transmission_texture); - cgltf_write_floatprop(context, "transmissionFactor", params->transmission_factor, 0.0f); - cgltf_write_line(context, "}"); - } - if (material->has_pbr_specular_glossiness) - { - const cgltf_pbr_specular_glossiness* params = &material->pbr_specular_glossiness; - cgltf_write_line(context, "\"KHR_materials_pbrSpecularGlossiness\": {"); - CGLTF_WRITE_TEXTURE_INFO("diffuseTexture", params->diffuse_texture); - CGLTF_WRITE_TEXTURE_INFO("specularGlossinessTexture", params->specular_glossiness_texture); - if (cgltf_check_floatarray(params->diffuse_factor, 4, 1.0f)) - { - cgltf_write_floatarrayprop(context, "dffuseFactor", params->diffuse_factor, 4); - } - if (cgltf_check_floatarray(params->specular_factor, 3, 1.0f)) - { - cgltf_write_floatarrayprop(context, "specularFactor", params->specular_factor, 3); - } - cgltf_write_floatprop(context, "glossinessFactor", params->glossiness_factor, 1.0f); - cgltf_write_line(context, "}"); - } - if (material->unlit) - { - cgltf_write_line(context, "\"KHR_materials_unlit\": {}"); - } - cgltf_write_line(context, "}"); - } - - CGLTF_WRITE_TEXTURE_INFO("normalTexture", material->normal_texture); - CGLTF_WRITE_TEXTURE_INFO("occlusionTexture", material->occlusion_texture); - CGLTF_WRITE_TEXTURE_INFO("emissiveTexture", material->emissive_texture); - if (cgltf_check_floatarray(material->emissive_factor, 3, 0.0f)) - { - cgltf_write_floatarrayprop(context, "emissiveFactor", material->emissive_factor, 3); - } - cgltf_write_strprop(context, "alphaMode", cgltf_str_from_alpha_mode(material->alpha_mode)); - cgltf_write_extras(context, &material->extras); - cgltf_write_line(context, "}"); -} - -static void cgltf_write_image(cgltf_write_context* context, const cgltf_image* image) -{ - cgltf_write_line(context, "{"); - cgltf_write_strprop(context, "name", image->name); - cgltf_write_strprop(context, "uri", image->uri); - CGLTF_WRITE_IDXPROP("bufferView", image->buffer_view, context->data->buffer_views); - cgltf_write_strprop(context, "mimeType", image->mime_type); - cgltf_write_extras(context, &image->extras); - cgltf_write_line(context, "}"); -} - -static void cgltf_write_texture(cgltf_write_context* context, const cgltf_texture* texture) -{ - cgltf_write_line(context, "{"); - cgltf_write_strprop(context, "name", texture->name); - CGLTF_WRITE_IDXPROP("source", texture->image, context->data->images); - CGLTF_WRITE_IDXPROP("sampler", texture->sampler, context->data->samplers); - cgltf_write_extras(context, &texture->extras); - cgltf_write_line(context, "}"); -} - -static void cgltf_write_skin(cgltf_write_context* context, const cgltf_skin* skin) -{ - cgltf_write_line(context, "{"); - CGLTF_WRITE_IDXPROP("skeleton", skin->skeleton, context->data->nodes); - CGLTF_WRITE_IDXPROP("inverseBindMatrices", skin->inverse_bind_matrices, context->data->accessors); - CGLTF_WRITE_IDXARRPROP("joints", skin->joints_count, skin->joints, context->data->nodes); - cgltf_write_strprop(context, "name", skin->name); - cgltf_write_extras(context, &skin->extras); - cgltf_write_line(context, "}"); -} - -static const char* cgltf_write_str_path_type(cgltf_animation_path_type path_type) -{ - switch (path_type) - { - case cgltf_animation_path_type_translation: - return "translation"; - case cgltf_animation_path_type_rotation: - return "rotation"; - case cgltf_animation_path_type_scale: - return "scale"; - case cgltf_animation_path_type_weights: - return "weights"; - case cgltf_animation_path_type_invalid: - break; - } - return "invalid"; -} - -static const char* cgltf_write_str_interpolation_type(cgltf_interpolation_type interpolation_type) -{ - switch (interpolation_type) - { - case cgltf_interpolation_type_linear: - return "LINEAR"; - case cgltf_interpolation_type_step: - return "STEP"; - case cgltf_interpolation_type_cubic_spline: - return "CUBICSPLINE"; - } - return "invalid"; -} - -static void cgltf_write_path_type(cgltf_write_context* context, const char *label, cgltf_animation_path_type path_type) -{ - cgltf_write_strprop(context, label, cgltf_write_str_path_type(path_type)); -} - -static void cgltf_write_interpolation_type(cgltf_write_context* context, const char *label, cgltf_interpolation_type interpolation_type) -{ - cgltf_write_strprop(context, label, cgltf_write_str_interpolation_type(interpolation_type)); -} - -static void cgltf_write_animation_sampler(cgltf_write_context* context, const cgltf_animation_sampler* animation_sampler) -{ - cgltf_write_line(context, "{"); - cgltf_write_interpolation_type(context, "interpolation", animation_sampler->interpolation); - CGLTF_WRITE_IDXPROP("input", animation_sampler->input, context->data->accessors); - CGLTF_WRITE_IDXPROP("output", animation_sampler->output, context->data->accessors); - cgltf_write_extras(context, &animation_sampler->extras); - cgltf_write_line(context, "}"); -} - -static void cgltf_write_animation_channel(cgltf_write_context* context, const cgltf_animation* animation, const cgltf_animation_channel* animation_channel) -{ - cgltf_write_line(context, "{"); - CGLTF_WRITE_IDXPROP("sampler", animation_channel->sampler, animation->samplers); - cgltf_write_line(context, "\"target\": {"); - CGLTF_WRITE_IDXPROP("node", animation_channel->target_node, context->data->nodes); - cgltf_write_path_type(context, "path", animation_channel->target_path); - cgltf_write_line(context, "}"); - cgltf_write_extras(context, &animation_channel->extras); - cgltf_write_line(context, "}"); -} - -static void cgltf_write_animation(cgltf_write_context* context, const cgltf_animation* animation) -{ - cgltf_write_line(context, "{"); - cgltf_write_strprop(context, "name", animation->name); - - if (animation->samplers_count > 0) - { - cgltf_write_line(context, "\"samplers\": ["); - for (cgltf_size i = 0; i < animation->samplers_count; ++i) - { - cgltf_write_animation_sampler(context, animation->samplers + i); - } - cgltf_write_line(context, "]"); - } - if (animation->channels_count > 0) - { - cgltf_write_line(context, "\"channels\": ["); - for (cgltf_size i = 0; i < animation->channels_count; ++i) - { - cgltf_write_animation_channel(context, animation, animation->channels + i); - } - cgltf_write_line(context, "]"); - } - cgltf_write_extras(context, &animation->extras); - cgltf_write_line(context, "}"); -} - -static void cgltf_write_sampler(cgltf_write_context* context, const cgltf_sampler* sampler) -{ - cgltf_write_line(context, "{"); - cgltf_write_intprop(context, "magFilter", sampler->mag_filter, 0); - cgltf_write_intprop(context, "minFilter", sampler->min_filter, 0); - cgltf_write_intprop(context, "wrapS", sampler->wrap_s, 10497); - cgltf_write_intprop(context, "wrapT", sampler->wrap_t, 10497); - cgltf_write_extras(context, &sampler->extras); - cgltf_write_line(context, "}"); -} - -static void cgltf_write_node(cgltf_write_context* context, const cgltf_node* node) -{ - cgltf_write_line(context, "{"); - CGLTF_WRITE_IDXARRPROP("children", node->children_count, node->children, context->data->nodes); - CGLTF_WRITE_IDXPROP("mesh", node->mesh, context->data->meshes); - cgltf_write_strprop(context, "name", node->name); - if (node->has_matrix) - { - cgltf_write_floatarrayprop(context, "matrix", node->matrix, 16); - } - if (node->has_translation) - { - cgltf_write_floatarrayprop(context, "translation", node->translation, 3); - } - if (node->has_rotation) - { - cgltf_write_floatarrayprop(context, "rotation", node->rotation, 4); - } - if (node->has_scale) - { - cgltf_write_floatarrayprop(context, "scale", node->scale, 3); - } - if (node->skin) - { - CGLTF_WRITE_IDXPROP("skin", node->skin, context->data->skins); - } - - if (node->light) - { - context->extension_flags |= CGLTF_EXTENSION_FLAG_LIGHTS_PUNCTUAL; - cgltf_write_line(context, "\"extensions\": {"); - cgltf_write_line(context, "\"KHR_lights_punctual\": {"); - CGLTF_WRITE_IDXPROP("light", node->light, context->data->lights); - cgltf_write_line(context, "}"); - cgltf_write_line(context, "}"); - } - - if (node->weights_count > 0) - { - cgltf_write_floatarrayprop(context, "weights", node->weights, node->weights_count); - } - - if (node->camera) - { - CGLTF_WRITE_IDXPROP("camera", node->camera, context->data->cameras); - } - - cgltf_write_extras(context, &node->extras); - cgltf_write_line(context, "}"); -} - -static void cgltf_write_scene(cgltf_write_context* context, const cgltf_scene* scene) -{ - cgltf_write_line(context, "{"); - cgltf_write_strprop(context, "name", scene->name); - CGLTF_WRITE_IDXARRPROP("nodes", scene->nodes_count, scene->nodes, context->data->nodes); - cgltf_write_extras(context, &scene->extras); - cgltf_write_line(context, "}"); -} - -static void cgltf_write_accessor(cgltf_write_context* context, const cgltf_accessor* accessor) -{ - cgltf_write_line(context, "{"); - CGLTF_WRITE_IDXPROP("bufferView", accessor->buffer_view, context->data->buffer_views); - cgltf_write_intprop(context, "componentType", cgltf_int_from_component_type(accessor->component_type), 0); - cgltf_write_strprop(context, "type", cgltf_str_from_type(accessor->type)); - cgltf_size dim = cgltf_dim_from_type(accessor->type); - cgltf_write_boolprop_optional(context, "normalized", accessor->normalized, false); - cgltf_write_intprop(context, "byteOffset", (int)accessor->offset, 0); - cgltf_write_intprop(context, "count", (int)accessor->count, -1); - if (accessor->has_min) - { - cgltf_write_floatarrayprop(context, "min", accessor->min, dim); - } - if (accessor->has_max) - { - cgltf_write_floatarrayprop(context, "max", accessor->max, dim); - } - if (accessor->is_sparse) - { - cgltf_write_line(context, "\"sparse\": {"); - cgltf_write_intprop(context, "count", (int)accessor->sparse.count, 0); - cgltf_write_line(context, "\"indices\": {"); - cgltf_write_intprop(context, "byteOffset", (int)accessor->sparse.indices_byte_offset, 0); - CGLTF_WRITE_IDXPROP("bufferView", accessor->sparse.indices_buffer_view, context->data->buffer_views); - cgltf_write_intprop(context, "componentType", cgltf_int_from_component_type(accessor->sparse.indices_component_type), 0); - cgltf_write_extras(context, &accessor->sparse.indices_extras); - cgltf_write_line(context, "}"); - cgltf_write_line(context, "\"values\": {"); - cgltf_write_intprop(context, "byteOffset", (int)accessor->sparse.values_byte_offset, 0); - CGLTF_WRITE_IDXPROP("bufferView", accessor->sparse.values_buffer_view, context->data->buffer_views); - cgltf_write_extras(context, &accessor->sparse.values_extras); - cgltf_write_line(context, "}"); - cgltf_write_extras(context, &accessor->sparse.extras); - cgltf_write_line(context, "}"); - } - cgltf_write_extras(context, &accessor->extras); - cgltf_write_line(context, "}"); -} - -static void cgltf_write_camera(cgltf_write_context* context, const cgltf_camera* camera) -{ - cgltf_write_line(context, "{"); - cgltf_write_strprop(context, "type", cgltf_str_from_camera_type(camera->type)); - if (camera->name) - { - cgltf_write_strprop(context, "name", camera->name); - } - - if (camera->type == cgltf_camera_type_orthographic) - { - cgltf_write_line(context, "\"orthographic\": {"); - cgltf_write_floatprop(context, "xmag", camera->data.orthographic.xmag, -1.0f); - cgltf_write_floatprop(context, "ymag", camera->data.orthographic.ymag, -1.0f); - cgltf_write_floatprop(context, "zfar", camera->data.orthographic.zfar, -1.0f); - cgltf_write_floatprop(context, "znear", camera->data.orthographic.znear, -1.0f); - cgltf_write_extras(context, &camera->data.orthographic.extras); - cgltf_write_line(context, "}"); - } - else if (camera->type == cgltf_camera_type_perspective) - { - cgltf_write_line(context, "\"perspective\": {"); - cgltf_write_floatprop(context, "aspectRatio", camera->data.perspective.aspect_ratio, -1.0f); - cgltf_write_floatprop(context, "yfov", camera->data.perspective.yfov, -1.0f); - cgltf_write_floatprop(context, "zfar", camera->data.perspective.zfar, -1.0f); - cgltf_write_floatprop(context, "znear", camera->data.perspective.znear, -1.0f); - cgltf_write_extras(context, &camera->data.perspective.extras); - cgltf_write_line(context, "}"); - } - cgltf_write_extras(context, &camera->extras); - cgltf_write_line(context, "}"); -} - -static void cgltf_write_light(cgltf_write_context* context, const cgltf_light* light) -{ - cgltf_write_line(context, "{"); - cgltf_write_strprop(context, "type", cgltf_str_from_light_type(light->type)); - if (light->name) - { - cgltf_write_strprop(context, "name", light->name); - } - if (cgltf_check_floatarray(light->color, 3, 1.0f)) - { - cgltf_write_floatarrayprop(context, "color", light->color, 3); - } - cgltf_write_floatprop(context, "intensity", light->intensity, 1.0f); - cgltf_write_floatprop(context, "range", light->range, 0.0f); - - if (light->type == cgltf_light_type_spot) - { - cgltf_write_line(context, "\"spot\": {"); - cgltf_write_floatprop(context, "innerConeAngle", light->spot_inner_cone_angle, 0.0f); - cgltf_write_floatprop(context, "outerConeAngle", light->spot_outer_cone_angle, 3.14159265358979323846f/4.0f); - cgltf_write_line(context, "}"); - } - cgltf_write_line(context, "}"); -} - -cgltf_result cgltf_write_file(const cgltf_options* options, const char* path, const cgltf_data* data) -{ - cgltf_size expected = cgltf_write(options, NULL, 0, data); - char* buffer = (char*) malloc(expected); - cgltf_size actual = cgltf_write(options, buffer, expected, data); - if (expected != actual) { - fprintf(stderr, "Error: expected %zu bytes but wrote %zu bytes.\n", expected, actual); - } - FILE* file = fopen(path, "wt"); - if (!file) - { - return cgltf_result_file_not_found; - } - // Note that cgltf_write() includes a null terminator, which we omit from the file content. - fwrite(buffer, actual - 1, 1, file); - fclose(file); - free(buffer); - return cgltf_result_success; -} - -static void cgltf_write_extensions(cgltf_write_context* context, uint32_t extension_flags) -{ - if (extension_flags & CGLTF_EXTENSION_FLAG_TEXTURE_TRANSFORM) { - cgltf_write_stritem(context, "KHR_texture_transform"); - } - if (extension_flags & CGLTF_EXTENSION_FLAG_MATERIALS_UNLIT) { - cgltf_write_stritem(context, "KHR_materials_unlit"); - } - if (extension_flags & CGLTF_EXTENSION_FLAG_SPECULAR_GLOSSINESS) { - cgltf_write_stritem(context, "KHR_materials_pbrSpecularGlossiness"); - } - if (extension_flags & CGLTF_EXTENSION_FLAG_LIGHTS_PUNCTUAL) { - cgltf_write_stritem(context, "KHR_lights_punctual"); - } - if (extension_flags & CGLTF_EXTENSION_FLAG_DRACO_MESH_COMPRESSION) { - cgltf_write_stritem(context, "KHR_draco_mesh_compression"); - } - if (extension_flags & CGLTF_EXTENSION_FLAG_MATERIALS_CLEARCOAT) { - cgltf_write_stritem(context, "KHR_materials_clearcoat"); - } - if (extension_flags & CGLTF_EXTENSION_FLAG_MATERIALS_IOR) { - cgltf_write_stritem(context, "KHR_materials_ior"); - } - if (extension_flags & CGLTF_EXTENSION_FLAG_MATERIALS_SPECULAR) { - cgltf_write_stritem(context, "KHR_materials_specular"); - } - if (extension_flags & CGLTF_EXTENSION_FLAG_MATERIALS_TRANSMISSION) { - cgltf_write_stritem(context, "KHR_materials_transmission"); - } -} - -cgltf_size cgltf_write(const cgltf_options* options, char* buffer, cgltf_size size, const cgltf_data* data) -{ - (void)options; - cgltf_write_context ctx; - ctx.buffer = buffer; - ctx.buffer_size = size; - ctx.remaining = size; - ctx.cursor = buffer; - ctx.chars_written = 0; - ctx.data = data; - ctx.depth = 1; - ctx.indent = " "; - ctx.needs_comma = 0; - ctx.extension_flags = 0; - ctx.required_extension_flags = 0; - - cgltf_write_context* context = &ctx; - - CGLTF_SPRINTF("{"); - - if (data->accessors_count > 0) - { - cgltf_write_line(context, "\"accessors\": ["); - for (cgltf_size i = 0; i < data->accessors_count; ++i) - { - cgltf_write_accessor(context, data->accessors + i); - } - cgltf_write_line(context, "]"); - } - - cgltf_write_asset(context, &data->asset); - - if (data->buffer_views_count > 0) - { - cgltf_write_line(context, "\"bufferViews\": ["); - for (cgltf_size i = 0; i < data->buffer_views_count; ++i) - { - cgltf_write_buffer_view(context, data->buffer_views + i); - } - cgltf_write_line(context, "]"); - } - - if (data->buffers_count > 0) - { - cgltf_write_line(context, "\"buffers\": ["); - for (cgltf_size i = 0; i < data->buffers_count; ++i) - { - cgltf_write_buffer(context, data->buffers + i); - } - cgltf_write_line(context, "]"); - } - - if (data->images_count > 0) - { - cgltf_write_line(context, "\"images\": ["); - for (cgltf_size i = 0; i < data->images_count; ++i) - { - cgltf_write_image(context, data->images + i); - } - cgltf_write_line(context, "]"); - } - - if (data->meshes_count > 0) - { - cgltf_write_line(context, "\"meshes\": ["); - for (cgltf_size i = 0; i < data->meshes_count; ++i) - { - cgltf_write_mesh(context, data->meshes + i); - } - cgltf_write_line(context, "]"); - } - - if (data->materials_count > 0) - { - cgltf_write_line(context, "\"materials\": ["); - for (cgltf_size i = 0; i < data->materials_count; ++i) - { - cgltf_write_material(context, data->materials + i); - } - cgltf_write_line(context, "]"); - } - - if (data->nodes_count > 0) - { - cgltf_write_line(context, "\"nodes\": ["); - for (cgltf_size i = 0; i < data->nodes_count; ++i) - { - cgltf_write_node(context, data->nodes + i); - } - cgltf_write_line(context, "]"); - } - - if (data->samplers_count > 0) - { - cgltf_write_line(context, "\"samplers\": ["); - for (cgltf_size i = 0; i < data->samplers_count; ++i) - { - cgltf_write_sampler(context, data->samplers + i); - } - cgltf_write_line(context, "]"); - } - - CGLTF_WRITE_IDXPROP("scene", data->scene, data->scenes); - - if (data->scenes_count > 0) - { - cgltf_write_line(context, "\"scenes\": ["); - for (cgltf_size i = 0; i < data->scenes_count; ++i) - { - cgltf_write_scene(context, data->scenes + i); - } - cgltf_write_line(context, "]"); - } - - if (data->textures_count > 0) - { - cgltf_write_line(context, "\"textures\": ["); - for (cgltf_size i = 0; i < data->textures_count; ++i) - { - cgltf_write_texture(context, data->textures + i); - } - cgltf_write_line(context, "]"); - } - - if (data->skins_count > 0) - { - cgltf_write_line(context, "\"skins\": ["); - for (cgltf_size i = 0; i < data->skins_count; ++i) - { - cgltf_write_skin(context, data->skins + i); - } - cgltf_write_line(context, "]"); - } - - if (data->animations_count > 0) - { - cgltf_write_line(context, "\"animations\": ["); - for (cgltf_size i = 0; i < data->animations_count; ++i) - { - cgltf_write_animation(context, data->animations + i); - } - cgltf_write_line(context, "]"); - } - - if (data->cameras_count > 0) - { - cgltf_write_line(context, "\"cameras\": ["); - for (cgltf_size i = 0; i < data->cameras_count; ++i) - { - cgltf_write_camera(context, data->cameras + i); - } - cgltf_write_line(context, "]"); - } - - if (data->lights_count > 0) - { - cgltf_write_line(context, "\"extensions\": {"); - - cgltf_write_line(context, "\"KHR_lights_punctual\": {"); - cgltf_write_line(context, "\"lights\": ["); - for (cgltf_size i = 0; i < data->lights_count; ++i) - { - cgltf_write_light(context, data->lights + i); - } - cgltf_write_line(context, "]"); - cgltf_write_line(context, "}"); - - cgltf_write_line(context, "}"); - } - - if (context->extension_flags != 0) { - cgltf_write_line(context, "\"extensionsUsed\": ["); - cgltf_write_extensions(context, context->extension_flags); - cgltf_write_line(context, "]"); - } - - if (context->required_extension_flags != 0) { - cgltf_write_line(context, "\"extensionsRequired\": ["); - cgltf_write_extensions(context, context->required_extension_flags); - cgltf_write_line(context, "]"); - } - - cgltf_write_extras(context, &data->extras); - - CGLTF_SPRINTF("\n}\n"); - - // snprintf does not include the null terminator in its return value, so be sure to include it - // in the returned byte count. - return 1 + ctx.chars_written; -} - -#endif /* #ifdef CGLTF_WRITE_IMPLEMENTATION */ - -/* cgltf is distributed under MIT license: - * - * Copyright (c) 2019 Philip Rideout - - * 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. - */ -- cgit v1.2.3