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-rw-r--r--src/resources/obj.c398
1 files changed, 0 insertions, 398 deletions
diff --git a/src/resources/obj.c b/src/resources/obj.c
deleted file mode 100644
index a5e9b18..0000000
--- a/src/resources/obj.c
+++ /dev/null
@@ -1,398 +0,0 @@
-/**
- * @file obj.c
- * @brief Wavefront OBJ loader.
- * @copyright Copyright (c) 2024
- */
-#include <ctype.h>
-#include <stdbool.h>
-#include <stddef.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "core.h"
-#include "darray.h"
-#include "file.h"
-#include "log.h"
-#include "maths.h"
-#include "mem.h"
-#include "platform.h"
-#include "render.h"
-#include "render_types.h"
-#include "str.h"
-
-extern Core g_core;
-
-struct face {
- u32 vertex_indices[3];
- u32 normal_indices[3];
- u32 uv_indices[3];
-};
-typedef struct face face;
-
-KITC_DECL_TYPED_ARRAY(Vec3)
-KITC_DECL_TYPED_ARRAY(Vec2)
-KITC_DECL_TYPED_ARRAY(face)
-
-// Forward declarations
-// void create_submesh(mesh_darray *meshes, Vec3_darray *tmp_positions, Vec3_darray *tmp_normals,
-// Vec2_darray *tmp_uvs, face_darray *tmp_faces, material_darray *materials,
-// bool material_loaded, char current_material_name[256]);
-// bool load_material_lib(const char *path, str8 relative_path, material_darray *materials);
-// bool model_load_obj_str(const char *file_string, str8 relative_path, Model *out_model,
-// bool invert_textures_y);
-
-ModelHandle model_load_obj(Core* core, const char* path, bool invert_textures_y) {
- size_t arena_size = 1024;
- arena scratch = arena_create(malloc(arena_size), arena_size);
-
- TRACE("Loading model at Path %s\n", path);
- path_opt relative_path = path_parent(&scratch, path);
- if (!relative_path.has_value) {
- WARN("Couldnt get a relative path for the path to use for loading materials & textures later");
- }
- const char* file_string = string_from_file(path);
-
- ModelHandle handle;
- // model *model = model_pool_alloc(&g_core.models, &handle);
- // model->name = str8_cstr_view(path);
- // model->meshes = mesh_darray_new(1);
-
- // bool success = model_load_obj_str(file_string, relative_path.path, &model, invert_textures_y);
-
- // if (!success) {
- // FATAL("Couldnt load OBJ file at path %s", path);
- // ERROR_EXIT("Load fails are considered crash-worthy right now. This will change later.\n");
- // }
-
- // arena_free_all(&scratch);
- // arena_free_storage(&scratch);
- return handle;
-}
-
-bool model_load_obj_str(const char* file_string, Str8 relative_path, Model* out_model,
- bool invert_textures_y) {
- TRACE("Load OBJ from string");
-
- // // Setup temps
- // vec3_darray *tmp_positions = vec3_darray_new(1000);
- // vec3_darray *tmp_normals = vec3_darray_new(1000);
- // vec2_darray *tmp_uvs = vec2_darray_new(1000);
- // face_darray *tmp_faces = face_darray_new(1000);
- // // TODO: In the future I'd like these temporary arrays to be allocated from an arena provided
- // // by the function one level up, model_load_obj. That way we can just `return false;` anywhere
- // in
- // // this code to indicate an error, and be sure that all that memory will be cleaned up without
- // // having to call vec3_darray_free in every single error case before returning.
-
- // // Other state
- // bool object_set = false;
- // bool material_loaded = false;
- // char current_material_name[64];
-
- // char *pch;
- // char *rest = file_string;
- // pch = strtok_r((char *)file_string, "\n", &rest);
-
- // int line_num = 0;
- // char last_char_type = 'a';
-
- // while (pch != NULL) {
- // line_num++;
- // char line_header[128];
- // int offset = 0;
-
- // // skip whitespace
- // char *p = pch;
-
- // skip_space(pch);
-
- // if (*p == '\0') {
- // /* the string is empty */
- // } else {
- // // read the first word of the line
- // int res = sscanf(pch, "%s %n", line_header, &offset);
- // /* printf("header: %s, offset : %d res: %d\n",line_header, offset, res); */
- // if (res != 1) {
- // break;
- // }
-
- // if (strcmp(line_header, "o") == 0 || strcmp(line_header, "g") == 0) {
- // // if we're currently parsing one
- // if (!object_set) {
- // object_set = true;
- // } else {
- // create_submesh(out_model->meshes, tmp_positions, tmp_normals, tmp_uvs, tmp_faces,
- // NULL, // out_model->materials,
- // material_loaded, current_material_name);
- // object_set = false;
- // }
- // } else if (strcmp(line_header, "v") == 0) {
- // // special logic: if we went from faces back to vertices trigger a mesh output.
- // // PS: I hate OBJ
- // if (last_char_type == 'f') {
- // create_submesh(out_model->meshes, tmp_positions, tmp_normals, tmp_uvs, tmp_faces,
- // NULL, // FIXME: out_model->materials,
- // material_loaded, current_material_name);
- // object_set = false;
- // }
-
- // last_char_type = 'v';
- // vec3 vertex;
- // sscanf(pch + offset, "%f %f %f", &vertex.x, &vertex.y, &vertex.z);
-
- // vec3_darray_push(tmp_positions, vertex);
- // } else if (strcmp(line_header, "vt") == 0) {
- // last_char_type = 't';
- // vec2 uv;
- // char copy[1024];
- // memcpy(copy, pch + offset, strlen(pch + offset) + 1);
- // char *p = pch + offset;
- // while (isspace((unsigned char)*p)) ++p;
-
- // // I can't remember what is going on here
- // memset(copy, 0, 1024);
- // memcpy(copy, pch + offset, strlen(pch + offset) + 1);
- // int res = sscanf(copy, "%f %f", &uv.x, &uv.y);
- // memset(copy, 0, 1024);
- // memcpy(copy, pch + offset, strlen(pch + offset) + 1);
- // if (res != 1) {
- // // da frick? some .obj files have 3 uvs instead of 2
- // f32 dummy;
- // int res2 = sscanf(copy, "%f %f %f", &uv.x, &uv.y, &dummy);
- // }
-
- // if (invert_textures_y) {
- // uv.y = -uv.y; // flip Y axis to be consistent with how other PNGs are being handled
- // // `texture_load` will flip it again
- // }
- // vec2_darray_push(tmp_uvs, uv);
- // } else if (strcmp(line_header, "vn") == 0) {
- // last_char_type = 'n';
- // vec3 normal;
- // sscanf(pch + offset, "%f %f %f", &normal.x, &normal.y, &normal.z);
- // vec3_darray_push(tmp_normals, normal);
- // } else if (strcmp(line_header, "f") == 0) {
- // last_char_type = 'f';
- // struct face f;
- // sscanf(pch + offset, "%d/%d/%d %d/%d/%d %d/%d/%d", &f.vertex_indices[0],
- // &f.uv_indices[0],
- // &f.normal_indices[0], &f.vertex_indices[1], &f.uv_indices[1],
- // &f.normal_indices[1], &f.vertex_indices[2], &f.uv_indices[2],
- // &f.normal_indices[2]);
- // // printf("f %d/%d/%d %d/%d/%d %d/%d/%d\n", f.vertex_indices[0], f.uv_indices[0],
- // // f.normal_indices[0],
- // // f.vertex_indices[1], f.uv_indices[1], f.normal_indices[1],
- // // f.vertex_indices[2], f.uv_indices[2], f.normal_indices[2]);
- // face_darray_push(tmp_faces, f);
- // } else if (strcmp(line_header, "mtllib") == 0) {
- // char filename[1024];
- // sscanf(pch + offset, "%s", filename);
- // char mtllib_path[1024];
- // snprintf(mtllib_path, sizeof(mtllib_path), "%s/%s", relative_path.buf, filename);
- // if (!load_material_lib(mtllib_path, relative_path, out_model->materials)) {
- // ERROR("couldnt load material lib");
- // return false;
- // }
- // } else if (strcmp(line_header, "usemtl") == 0) {
- // material_loaded = true;
- // sscanf(pch + offset, "%s", current_material_name);
- // }
- // }
-
- // pch = strtok_r(NULL, "\n", &rest);
- // }
-
- // // last mesh or if one wasnt created with 'o' directive
- // if (face_darray_len(tmp_faces) > 0) {
- // TRACE("Last leftover mesh");
- // create_submesh(out_model->meshes, tmp_positions, tmp_normals, tmp_uvs, tmp_faces,
- // NULL, // TODO: out_model->materials,
- // material_loaded, current_material_name);
- // }
-
- // // Free data
- // free((char *)file_string);
- // vec3_darray_free(tmp_positions);
- // vec3_darray_free(tmp_normals);
- // vec2_darray_free(tmp_uvs);
- // face_darray_free(tmp_faces);
- // TRACE("Freed temporary OBJ loading data");
-
- // if (mesh_darray_len(out_model->meshes) > 256) {
- // printf("num meshes: %ld\n", mesh_darray_len(out_model->meshes));
- // }
-
- // // TODO: bounding box calculation for each mesh
- // // TODO: bounding box calculation for model
-
- // TODO: copy from mesh_darray to malloc'd mesh* array
-
- return true;
-}
-
-// /**
-// * @brief Takes the current positions, normals, uvs arrays and constructs the vertex array
-// * from those indices.
-// */
-// void create_submesh(mesh_darray *meshes, vec3_darray *tmp_positions, vec3_darray *tmp_normals,
-// vec2_darray *tmp_uvs, face_darray *tmp_faces, material_darray *materials,
-// bool material_loaded, char current_material_name[256]) {
-// // size_t num_verts = face_darray_len(tmp_faces) * 3;
-// // vertex_darray *out_vertices = vertex_darray_new(num_verts);
-
-// // face_darray_iter face_iter = face_darray_iter_new(tmp_faces);
-// // struct face *f;
-
-// // while ((f = face_darray_iter_next(&face_iter))) {
-// // for (int j = 0; j < 3; j++) {
-// // vertex vert = { 0 };
-// // vert.position = tmp_positions->data[f->vertex_indices[j] - 1];
-// // if (vec3_darray_len(tmp_normals) == 0) {
-// // vert.normal = vec3_create(0.0, 0.0, 0.0);
-// // } else {
-// // vert.normal = tmp_normals->data[f->normal_indices[j] - 1];
-// // }
-// // vert.uv = tmp_uvs->data[f->uv_indices[j] - 1];
-// // vertex_darray_push(out_vertices, vert);
-// // }
-// // }
-
-// // DEBUG("Loaded submesh\n vertices: %zu\n uvs: %zu\n normals: %zu\n faces: %zu",
-// // vec3_darray_len(tmp_positions), vec2_darray_len(tmp_uvs),
-// vec3_darray_len(tmp_normals),
-// // face_darray_len(tmp_faces));
-
-// // // Clear current object faces
-// // face_darray_clear(tmp_faces);
-
-// // mesh m = { .vertices = out_vertices };
-// // if (material_loaded) {
-// // // linear scan to find material
-// // bool found = false;
-// // DEBUG("Num of materials : %ld", material_darray_len(materials));
-// // material_darray_iter mat_iter = material_darray_iter_new(materials);
-// // blinn_phong_material *cur_material;
-// // while ((cur_material = material_darray_iter_next(&mat_iter))) {
-// // if (strcmp(cur_material->name, current_material_name) == 0) {
-// // DEBUG("Found match");
-// // m.material_index = mat_iter.current_idx - 1;
-// // found = true;
-// // break;
-// // }
-// // }
-
-// // if (!found) {
-// // // TODO: default material
-// // m.material_index = 0;
-// // DEBUG("Set default material");
-// // }
-// // }
-// // mesh_darray_push(meshes, m);
-// }
-
-// bool load_material_lib(const char *path, str8 relative_path, material_darray *materials) {
-// TRACE("BEGIN load material lib at %s", path);
-
-// // const char *file_string = string_from_file(path);
-// // if (file_string == NULL) {
-// // ERROR("couldnt load %s", path);
-// // return false;
-// // }
-
-// // char *pch;
-// // char *saveptr;
-// // pch = strtok_r((char *)file_string, "\n", &saveptr);
-
-// // material current_material = DEFAULT_MATERIAL;
-
-// // bool material_set = false;
-
-// // while (pch != NULL) {
-// // char line_header[128];
-// // int offset = 0;
-// // // read the first word of the line
-// // int res = sscanf(pch, "%s %n", line_header, &offset);
-// // if (res != 1) {
-// // break;
-// // }
-
-// // // When we see "newmtl", start a new material, or flush the previous one
-// // if (strcmp(line_header, "newmtl") == 0) {
-// // if (material_set) {
-// // // a material was being parsed, so flush that one and start a new one
-// // material_darray_push(materials, current_material);
-// // DEBUG("pushed material with name %s", current_material.name);
-// // WARN("Reset current material");
-// // current_material = DEFAULT_MATERIAL;
-// // } else {
-// // material_set = true;
-// // }
-// // // scan the new material name
-// // char material_name[64];
-// // sscanf(pch + offset, "%s", current_material.name);
-// // DEBUG("material name %s\n", current_material.name);
-// // // current_material.name = material_name;
-// // } else if (strcmp(line_header, "Ka") == 0) {
-// // // ambient
-// // sscanf(pch + offset, "%f %f %f", &current_material.ambient_colour.x,
-// // &current_material.ambient_colour.y, &current_material.ambient_colour.z);
-// // } else if (strcmp(line_header, "Kd") == 0) {
-// // // diffuse
-// // sscanf(pch + offset, "%f %f %f", &current_material.diffuse.x,
-// &current_material.diffuse.y,
-// // &current_material.diffuse.z);
-// // } else if (strcmp(line_header, "Ks") == 0) {
-// // // specular
-// // sscanf(pch + offset, "%f %f %f", &current_material.specular.x,
-// // &current_material.specular.y,
-// // &current_material.specular.z);
-// // } else if (strcmp(line_header, "Ns") == 0) {
-// // // specular exponent
-// // sscanf(pch + offset, "%f", &current_material.spec_exponent);
-// // } else if (strcmp(line_header, "map_Kd") == 0) {
-// // char diffuse_map_filename[1024];
-// // sscanf(pch + offset, "%s", diffuse_map_filename);
-// // char diffuse_map_path[1024];
-// // snprintf(diffuse_map_path, sizeof(diffuse_map_path), "%s/%s", relative_path.buf,
-// // diffuse_map_filename);
-// // printf("load from %s\n", diffuse_map_path);
-
-// // // --------------
-// // texture diffuse_texture = texture_data_load(diffuse_map_path, true);
-// // current_material.diffuse_texture = diffuse_texture;
-// // strcpy(current_material.diffuse_tex_path, diffuse_map_path);
-// // texture_data_upload(&current_material.diffuse_texture);
-// // // --------------
-// // } else if (strcmp(line_header, "map_Ks") == 0) {
-// // // char specular_map_path[1024] = "assets/";
-// // // sscanf(pch + offset, "%s", specular_map_path + 7);
-// // char specular_map_filename[1024];
-// // sscanf(pch + offset, "%s", specular_map_filename);
-// // char specular_map_path[1024];
-// // snprintf(specular_map_path, sizeof(specular_map_path), "%s/%s", relative_path.buf,
-// // specular_map_filename);
-// // printf("load from %s\n", specular_map_path);
-// // // --------------
-// // texture specular_texture = texture_data_load(specular_map_path, true);
-// // current_material.specular_texture = specular_texture;
-// // strcpy(current_material.specular_tex_path, specular_map_path);
-// // texture_data_upload(&current_material.specular_texture);
-// // // --------------
-// // } else if (strcmp(line_header, "map_Bump") == 0) {
-// // // TODO
-// // }
-
-// // pch = strtok_r(NULL, "\n", &saveptr);
-// // }
-
-// // TRACE("end load material lib");
-
-// // // last mesh or if one wasnt created with 'o' directive
-// // // TRACE("Last leftover material");
-// // material_darray_push(materials, current_material);
-
-// // INFO("Loaded %ld materials", material_darray_len(materials));
-// TRACE("END load material lib");
-// return true;
-// }
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