+++ /dev/null
-/*
- The MIT License (MIT)
-
- Copyright (c) 2016 - 2019 Syoyo Fujita and many contributors.
-
- 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.
- */
-#ifndef TINOBJ_LOADER_C_H_
-#define TINOBJ_LOADER_C_H_
-
-/* @todo { Remove stddef dependency. unsigned int? } ---> RAY: DONE. */
-//#include <stddef.h>
-
-typedef struct {
- char *name;
-
- float ambient[3];
- float diffuse[3];
- float specular[3];
- float transmittance[3];
- float emission[3];
- float shininess;
- float ior; /* index of refraction */
- float dissolve; /* 1 == opaque; 0 == fully transparent */
- /* illumination model (see http://www.fileformat.info/format/material/) */
- int illum;
-
- int pad0;
-
- char *ambient_texname; /* map_Ka */
- char *diffuse_texname; /* map_Kd */
- char *specular_texname; /* map_Ks */
- char *specular_highlight_texname; /* map_Ns */
- char *bump_texname; /* map_bump, bump */
- char *displacement_texname; /* disp */
- char *alpha_texname; /* map_d */
-} tinyobj_material_t;
-
-typedef struct {
- char *name; /* group name or object name. */
- unsigned int face_offset;
- unsigned int length;
-} tinyobj_shape_t;
-
-typedef struct { int v_idx, vt_idx, vn_idx; } tinyobj_vertex_index_t;
-
-typedef struct {
- unsigned int num_vertices;
- unsigned int num_normals;
- unsigned int num_texcoords;
- unsigned int num_faces;
- unsigned int num_face_num_verts;
-
- int pad0;
-
- float *vertices;
- float *normals;
- float *texcoords;
- tinyobj_vertex_index_t *faces;
- int *face_num_verts;
- int *material_ids;
-} tinyobj_attrib_t;
-
-
-#define TINYOBJ_FLAG_TRIANGULATE (1 << 0)
-
-#define TINYOBJ_INVALID_INDEX (0x80000000)
-
-#define TINYOBJ_SUCCESS (0)
-#define TINYOBJ_ERROR_EMPTY (-1)
-#define TINYOBJ_ERROR_INVALID_PARAMETER (-2)
-#define TINYOBJ_ERROR_FILE_OPERATION (-3)
-
-/* Parse wavefront .obj(.obj string data is expanded to linear char array `buf')
- * flags are combination of TINYOBJ_FLAG_***
- * Returns TINYOBJ_SUCCESS if things goes well.
- * Returns TINYOBJ_ERR_*** when there is an error.
- */
-extern int tinyobj_parse_obj(tinyobj_attrib_t *attrib, tinyobj_shape_t **shapes,
- unsigned int *num_shapes, tinyobj_material_t **materials,
- unsigned int *num_materials, const char *buf, unsigned int len,
- unsigned int flags);
-extern int tinyobj_parse_mtl_file(tinyobj_material_t **materials_out,
- unsigned int *num_materials_out,
- const char *filename);
-
-extern void tinyobj_attrib_init(tinyobj_attrib_t *attrib);
-extern void tinyobj_attrib_free(tinyobj_attrib_t *attrib);
-extern void tinyobj_shapes_free(tinyobj_shape_t *shapes, unsigned int num_shapes);
-extern void tinyobj_materials_free(tinyobj_material_t *materials,
- unsigned int num_materials);
-
-#ifdef TINYOBJ_LOADER_C_IMPLEMENTATION
-#include <stdio.h>
-#include <assert.h>
-#include <string.h>
-#include <errno.h>
-
-#if defined(TINYOBJ_MALLOC) && defined(TINYOBJ_REALLOC) && defined(TINYOBJ_CALLOC) && defined(TINYOBJ_FREE)
-/* ok */
-#elif !defined(TINYOBJ_MALLOC) && !defined(TINYOBJ_REALLOC) && !defined(TINYOBJ_CALLOC) && !defined(TINYOBJ_FREE)
-/* ok */
-#else
-#error "Must define all or none of TINYOBJ_MALLOC, TINYOBJ_REALLOC, TINYOBJ_CALLOC and TINYOBJ_FREE."
-#endif
-
-#ifndef TINYOBJ_MALLOC
-#include <stdlib.h>
-#define TINYOBJ_MALLOC malloc
-#define TINYOBJ_REALLOC realloc
-#define TINYOBJ_CALLOC calloc
-#define TINYOBJ_FREE free
-#endif
-
-#define TINYOBJ_MAX_FACES_PER_F_LINE (16)
-
-#define IS_SPACE(x) (((x) == ' ') || ((x) == '\t'))
-#define IS_DIGIT(x) ((unsigned int)((x) - '0') < (unsigned int)(10))
-#define IS_NEW_LINE(x) (((x) == '\r') || ((x) == '\n') || ((x) == '\0'))
-
-static void skip_space(const char **token) {
- while ((*token)[0] == ' ' || (*token)[0] == '\t') {
- (*token)++;
- }
-}
-
-static void skip_space_and_cr(const char **token) {
- while ((*token)[0] == ' ' || (*token)[0] == '\t' || (*token)[0] == '\r') {
- (*token)++;
- }
-}
-
-static int until_space(const char *token) {
- const char *p = token;
- while (p[0] != '\0' && p[0] != ' ' && p[0] != '\t' && p[0] != '\r') {
- p++;
- }
-
- return (int)(p - token);
-}
-
-static unsigned int length_until_newline(const char *token, unsigned int n) {
- unsigned int len = 0;
-
- /* Assume token[n-1] = '\0' */
- for (len = 0; len < n - 1; len++) {
- if (token[len] == '\n') {
- break;
- }
- if ((token[len] == '\r') && ((len < (n - 2)) && (token[len + 1] != '\n'))) {
- break;
- }
- }
-
- return len;
-}
-
-static unsigned int length_until_line_feed(const char *token, unsigned int n) {
- unsigned int len = 0;
-
- /* Assume token[n-1] = '\0' */
- for (len = 0; len < n; len++) {
- if ((token[len] == '\n') || (token[len] == '\r')) {
- break;
- }
- }
-
- return len;
-}
-
-/* http://stackoverflow.com/questions/5710091/how-does-atoi-function-in-c-work
-*/
-static int my_atoi(const char *c) {
- int value = 0;
- int sign = 1;
- if (*c == '+' || *c == '-') {
- if (*c == '-') sign = -1;
- c++;
- }
- while (((*c) >= '0') && ((*c) <= '9')) { /* isdigit(*c) */
- value *= 10;
- value += (int)(*c - '0');
- c++;
- }
- return value * sign;
-}
-
-/* Make index zero-base, and also support relative index. */
-static int fixIndex(int idx, unsigned int n) {
- if (idx > 0) return idx - 1;
- if (idx == 0) return 0;
- return (int)n + idx; /* negative value = relative */
-}
-
-/* Parse raw triples: i, i/j/k, i//k, i/j */
-static tinyobj_vertex_index_t parseRawTriple(const char **token) {
- tinyobj_vertex_index_t vi;
- /* 0x80000000 = -2147483648 = invalid */
- vi.v_idx = (int)(0x80000000);
- vi.vn_idx = (int)(0x80000000);
- vi.vt_idx = (int)(0x80000000);
-
- vi.v_idx = my_atoi((*token));
- while ((*token)[0] != '\0' && (*token)[0] != '/' && (*token)[0] != ' ' &&
- (*token)[0] != '\t' && (*token)[0] != '\r') {
- (*token)++;
- }
- if ((*token)[0] != '/') {
- return vi;
- }
- (*token)++;
-
- /* i//k */
- if ((*token)[0] == '/') {
- (*token)++;
- vi.vn_idx = my_atoi((*token));
- while ((*token)[0] != '\0' && (*token)[0] != '/' && (*token)[0] != ' ' &&
- (*token)[0] != '\t' && (*token)[0] != '\r') {
- (*token)++;
- }
- return vi;
- }
-
- /* i/j/k or i/j */
- vi.vt_idx = my_atoi((*token));
- while ((*token)[0] != '\0' && (*token)[0] != '/' && (*token)[0] != ' ' &&
- (*token)[0] != '\t' && (*token)[0] != '\r') {
- (*token)++;
- }
- if ((*token)[0] != '/') {
- return vi;
- }
-
- /* i/j/k */
- (*token)++; /* skip '/' */
- vi.vn_idx = my_atoi((*token));
- while ((*token)[0] != '\0' && (*token)[0] != '/' && (*token)[0] != ' ' &&
- (*token)[0] != '\t' && (*token)[0] != '\r') {
- (*token)++;
- }
- return vi;
-}
-
-static int parseInt(const char **token) {
- int i = 0;
- skip_space(token);
- i = my_atoi((*token));
- (*token) += until_space((*token));
- return i;
-}
-
-/*
- * Tries to parse a floating point number located at s.
- *
- * s_end should be a location in the string where reading should absolutely
- * stop. For example at the end of the string, to prevent buffer overflows.
- *
- * Parses the following EBNF grammar:
- * sign = "+" | "-" ;
- * END = ? anything not in digit ?
- * digit = "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9" ;
- * integer = [sign] , digit , {digit} ;
- * decimal = integer , ["." , integer] ;
- * float = ( decimal , END ) | ( decimal , ("E" | "e") , integer , END ) ;
- *
- * Valid strings are for example:
- * -0 +3.1417e+2 -0.0E-3 1.0324 -1.41 11e2
- *
- * If the parsing is a success, result is set to the parsed value and true
- * is returned.
- *
- * The function is greedy and will parse until any of the following happens:
- * - a non-conforming character is encountered.
- * - s_end is reached.
- *
- * The following situations triggers a failure:
- * - s >= s_end.
- * - parse failure.
- */
-static int tryParseDouble(const char *s, const char *s_end, double *result) {
- double mantissa = 0.0;
- /* This exponent is base 2 rather than 10.
- * However the exponent we parse is supposed to be one of ten,
- * thus we must take care to convert the exponent/and or the
- * mantissa to a * 2^E, where a is the mantissa and E is the
- * exponent.
- * To get the final double we will use ldexp, it requires the
- * exponent to be in base 2.
- */
- int exponent = 0;
-
- /* NOTE: THESE MUST BE DECLARED HERE SINCE WE ARE NOT ALLOWED
- * TO JUMP OVER DEFINITIONS.
- */
- char sign = '+';
- char exp_sign = '+';
- char const *curr = s;
-
- /* How many characters were read in a loop. */
- int read = 0;
- /* Tells whether a loop terminated due to reaching s_end. */
- int end_not_reached = 0;
-
- /*
- BEGIN PARSING.
- */
-
- if (s >= s_end) {
- return 0; /* fail */
- }
-
- /* Find out what sign we've got. */
- if (*curr == '+' || *curr == '-') {
- sign = *curr;
- curr++;
- } else if (IS_DIGIT(*curr)) { /* Pass through. */
- } else {
- goto fail;
- }
-
- /* Read the integer part. */
- end_not_reached = (curr != s_end);
- while (end_not_reached && IS_DIGIT(*curr)) {
- mantissa *= 10;
- mantissa += (int)(*curr - 0x30);
- curr++;
- read++;
- end_not_reached = (curr != s_end);
- }
-
- /* We must make sure we actually got something. */
- if (read == 0) goto fail;
- /* We allow numbers of form "#", "###" etc. */
- if (!end_not_reached) goto assemble;
-
- /* Read the decimal part. */
- if (*curr == '.') {
- curr++;
- read = 1;
- end_not_reached = (curr != s_end);
- while (end_not_reached && IS_DIGIT(*curr)) {
- /* pow(10.0, -read) */
- double frac_value = 1.0;
- int f;
- for (f = 0; f < read; f++) {
- frac_value *= 0.1;
- }
- mantissa += (int)(*curr - 0x30) * frac_value;
- read++;
- curr++;
- end_not_reached = (curr != s_end);
- }
- } else if (*curr == 'e' || *curr == 'E') {
- } else {
- goto assemble;
- }
-
- if (!end_not_reached) goto assemble;
-
- /* Read the exponent part. */
- if (*curr == 'e' || *curr == 'E') {
- curr++;
- /* Figure out if a sign is present and if it is. */
- end_not_reached = (curr != s_end);
- if (end_not_reached && (*curr == '+' || *curr == '-')) {
- exp_sign = *curr;
- curr++;
- } else if (IS_DIGIT(*curr)) { /* Pass through. */
- } else {
- /* Empty E is not allowed. */
- goto fail;
- }
-
- read = 0;
- end_not_reached = (curr != s_end);
- while (end_not_reached && IS_DIGIT(*curr)) {
- exponent *= 10;
- exponent += (int)(*curr - 0x30);
- curr++;
- read++;
- end_not_reached = (curr != s_end);
- }
- if (read == 0) goto fail;
- }
-
-assemble :
-
- {
- double a = 1.0; /* = pow(5.0, exponent); */
- double b = 1.0; /* = 2.0^exponent */
- int i;
- for (i = 0; i < exponent; i++) {
- a = a * 5.0;
- }
-
- for (i = 0; i < exponent; i++) {
- b = b * 2.0;
- }
-
- if (exp_sign == '-') {
- a = 1.0 / a;
- b = 1.0 / b;
- }
-
- *result =
- /* (sign == '+' ? 1 : -1) * ldexp(mantissa * pow(5.0, exponent),
- exponent); */
- (sign == '+' ? 1 : -1) * (mantissa * a * b);
- }
-
- return 1;
-fail:
- return 0;
-}
-
-static float parseFloat(const char **token) {
- const char *end;
- double val = 0.0;
- float f = 0.0f;
- skip_space(token);
- end = (*token) + until_space((*token));
- val = 0.0;
- tryParseDouble((*token), end, &val);
- f = (float)(val);
- (*token) = end;
- return f;
-}
-
-static void parseFloat2(float *x, float *y, const char **token) {
- (*x) = parseFloat(token);
- (*y) = parseFloat(token);
-}
-
-static void parseFloat3(float *x, float *y, float *z, const char **token) {
- (*x) = parseFloat(token);
- (*y) = parseFloat(token);
- (*z) = parseFloat(token);
-}
-
-static unsigned int my_strnlen(const char *s, unsigned int n) {
- const char *p = memchr(s, 0, n);
- return p ? (unsigned int)(p - s) : n;
-}
-
-static char *my_strdup(const char *s, unsigned int max_length) {
- char *d;
- unsigned int len;
-
- if (s == NULL) return NULL;
-
- /* Do not consider CRLF line ending(#19) */
- len = length_until_line_feed(s, max_length);
- /* len = strlen(s); */
-
- /* trim line ending and append '\0' */
- d = (char *)TINYOBJ_MALLOC(len + 1); /* + '\0' */
- memcpy(d, s, (unsigned int)(len));
- d[len] = '\0';
-
- return d;
-}
-
-static char *my_strndup(const char *s, unsigned int len) {
- char *d;
- unsigned int slen;
-
- if (s == NULL) return NULL;
- if (len == 0) return NULL;
-
- slen = my_strnlen(s, len);
- d = (char *)TINYOBJ_MALLOC(slen + 1); /* + '\0' */
- if (!d) {
- return NULL;
- }
- memcpy(d, s, slen);
- d[slen] = '\0';
-
- return d;
-}
-
-char *dynamic_fgets(char **buf, unsigned int *size, FILE *file) {
- char *offset;
- char *ret;
- unsigned int old_size;
-
- if (!(ret = fgets(*buf, (int)*size, file))) {
- return ret;
- }
-
- if (NULL != strchr(*buf, '\n')) {
- return ret;
- }
-
- do {
- old_size = *size;
- *size *= 2;
- *buf = (char*)TINYOBJ_REALLOC(*buf, *size);
- offset = &((*buf)[old_size - 1]);
-
- ret = fgets(offset, (int)(old_size + 1), file);
- } while(ret && (NULL == strchr(*buf, '\n')));
-
- return ret;
-}
-
-static void initMaterial(tinyobj_material_t *material) {
- int i;
- material->name = NULL;
- material->ambient_texname = NULL;
- material->diffuse_texname = NULL;
- material->specular_texname = NULL;
- material->specular_highlight_texname = NULL;
- material->bump_texname = NULL;
- material->displacement_texname = NULL;
- material->alpha_texname = NULL;
- for (i = 0; i < 3; i++) {
- material->ambient[i] = 0.f;
- material->diffuse[i] = 0.f;
- material->specular[i] = 0.f;
- material->transmittance[i] = 0.f;
- material->emission[i] = 0.f;
- }
- material->illum = 0;
- material->dissolve = 1.f;
- material->shininess = 1.f;
- material->ior = 1.f;
-}
-
-/* Implementation of string to int hashtable */
-
-#define HASH_TABLE_ERROR 1
-#define HASH_TABLE_SUCCESS 0
-
-#define HASH_TABLE_DEFAULT_SIZE 10
-
-typedef struct hash_table_entry_t
-{
- unsigned long hash;
- int filled;
- int pad0;
- long value;
-
- struct hash_table_entry_t* next;
-} hash_table_entry_t;
-
-typedef struct
-{
- unsigned long* hashes;
- hash_table_entry_t* entries;
- unsigned int capacity;
- unsigned int n;
-} hash_table_t;
-
-static unsigned long hash_djb2(const unsigned char* str)
-{
- unsigned long hash = 5381;
- int c;
-
- while ((c = *str++)) {
- hash = ((hash << 5) + hash) + (unsigned long)(c);
- }
-
- return hash;
-}
-
-static void create_hash_table(unsigned int start_capacity, hash_table_t* hash_table)
-{
- if (start_capacity < 1)
- start_capacity = HASH_TABLE_DEFAULT_SIZE;
- hash_table->hashes = (unsigned long*) TINYOBJ_MALLOC(start_capacity * sizeof(unsigned long));
- hash_table->entries = (hash_table_entry_t*) TINYOBJ_CALLOC(start_capacity, sizeof(hash_table_entry_t));
- hash_table->capacity = start_capacity;
- hash_table->n = 0;
-}
-
-static void destroy_hash_table(hash_table_t* hash_table)
-{
- TINYOBJ_FREE(hash_table->entries);
- TINYOBJ_FREE(hash_table->hashes);
-}
-
-/* Insert with quadratic probing */
-static int hash_table_insert_value(unsigned long hash, long value, hash_table_t* hash_table)
-{
- /* Insert value */
- unsigned int start_index = hash % hash_table->capacity;
- unsigned int index = start_index;
- hash_table_entry_t* start_entry = hash_table->entries + start_index;
- unsigned int i;
- hash_table_entry_t* entry;
-
- for (i = 1; hash_table->entries[index].filled; i++)
- {
- if (i >= hash_table->capacity)
- return HASH_TABLE_ERROR;
- index = (start_index + (i * i)) % hash_table->capacity;
- }
-
- entry = hash_table->entries + index;
- entry->hash = hash;
- entry->filled = 1;
- entry->value = value;
-
- if (index != start_index) {
- /* This is a new entry, but not the start entry, hence we need to add a next pointer to our entry */
- entry->next = start_entry->next;
- start_entry->next = entry;
- }
-
- return HASH_TABLE_SUCCESS;
-}
-
-static int hash_table_insert(unsigned long hash, long value, hash_table_t* hash_table)
-{
- int ret = hash_table_insert_value(hash, value, hash_table);
- if (ret == HASH_TABLE_SUCCESS)
- {
- hash_table->hashes[hash_table->n] = hash;
- hash_table->n++;
- }
- return ret;
-}
-
-static hash_table_entry_t* hash_table_find(unsigned long hash, hash_table_t* hash_table)
-{
- hash_table_entry_t* entry = hash_table->entries + (hash % hash_table->capacity);
- while (entry)
- {
- if (entry->hash == hash && entry->filled)
- {
- return entry;
- }
- entry = entry->next;
- }
- return NULL;
-}
-
-static void hash_table_maybe_grow(unsigned int new_n, hash_table_t* hash_table)
-{
- unsigned int new_capacity;
- hash_table_t new_hash_table;
- unsigned int i;
-
- if (new_n <= hash_table->capacity) {
- return;
- }
- new_capacity = 2 * ((2 * hash_table->capacity) > new_n ? hash_table->capacity : new_n);
- /* Create a new hash table. We're not calling create_hash_table because we want to realloc the hash array */
- new_hash_table.hashes = hash_table->hashes = (unsigned long*) TINYOBJ_REALLOC((void*) hash_table->hashes, sizeof(unsigned long) * new_capacity);
- new_hash_table.entries = (hash_table_entry_t*) TINYOBJ_CALLOC(new_capacity, sizeof(hash_table_entry_t));
- new_hash_table.capacity = new_capacity;
- new_hash_table.n = hash_table->n;
-
- /* Rehash */
- for (i = 0; i < hash_table->capacity; i++)
- {
- hash_table_entry_t* entry = hash_table_find(hash_table->hashes[i], hash_table);
- hash_table_insert_value(hash_table->hashes[i], entry->value, &new_hash_table);
- }
-
- TINYOBJ_FREE(hash_table->entries);
- (*hash_table) = new_hash_table;
-}
-
-static int hash_table_exists(const char* name, hash_table_t* hash_table)
-{
- return hash_table_find(hash_djb2((const unsigned char*)name), hash_table) != NULL;
-}
-
-static void hash_table_set(const char* name, unsigned int val, hash_table_t* hash_table)
-{
- /* Hash name */
- unsigned long hash = hash_djb2((const unsigned char *)name);
-
- hash_table_entry_t* entry = hash_table_find(hash, hash_table);
- if (entry)
- {
- entry->value = (long)val;
- return;
- }
-
- /* Expand if necessary
- * Grow until the element has been added
- */
- do
- {
- hash_table_maybe_grow(hash_table->n + 1, hash_table);
- }
- while (hash_table_insert(hash, (long)val, hash_table) != HASH_TABLE_SUCCESS);
-}
-
-static long hash_table_get(const char* name, hash_table_t* hash_table)
-{
- hash_table_entry_t* ret = hash_table_find(hash_djb2((const unsigned char*)(name)), hash_table);
- return ret->value;
-}
-
-static tinyobj_material_t *tinyobj_material_add(tinyobj_material_t *prev,
- unsigned int num_materials,
- tinyobj_material_t *new_mat) {
- tinyobj_material_t *dst;
- dst = (tinyobj_material_t *)TINYOBJ_REALLOC(
- prev, sizeof(tinyobj_material_t) * (num_materials + 1));
-
- dst[num_materials] = (*new_mat); /* Just copy pointer for char* members */
- return dst;
-}
-
-static int tinyobj_parse_and_index_mtl_file(tinyobj_material_t **materials_out,
- unsigned int *num_materials_out,
- const char *filename,
- hash_table_t* material_table) {
- tinyobj_material_t material;
- unsigned int buffer_size = 128;
- char *linebuf;
- FILE *fp;
- unsigned int num_materials = 0;
- tinyobj_material_t *materials = NULL;
- int has_previous_material = 0;
- const char *line_end = NULL;
-
- if (materials_out == NULL) {
- return TINYOBJ_ERROR_INVALID_PARAMETER;
- }
-
- if (num_materials_out == NULL) {
- return TINYOBJ_ERROR_INVALID_PARAMETER;
- }
-
- (*materials_out) = NULL;
- (*num_materials_out) = 0;
-
- fp = fopen(filename, "r");
- if (!fp) {
- fprintf(stderr, "TINYOBJ: Error reading file '%s': %s (%d)\n", filename, strerror(errno), errno);
- return TINYOBJ_ERROR_FILE_OPERATION;
- }
-
- /* Create a default material */
- initMaterial(&material);
-
- linebuf = (char*)TINYOBJ_MALLOC(buffer_size);
- while (NULL != dynamic_fgets(&linebuf, &buffer_size, fp)) {
- const char *token = linebuf;
-
- line_end = token + strlen(token);
-
- /* Skip leading space. */
- token += strspn(token, " \t");
-
- assert(token);
- if (token[0] == '\0') continue; /* empty line */
-
- if (token[0] == '#') continue; /* comment line */
-
- /* new mtl */
- if ((0 == strncmp(token, "newmtl", 6)) && IS_SPACE((token[6]))) {
- char namebuf[4096];
-
- /* flush previous material. */
- if (has_previous_material) {
- materials = tinyobj_material_add(materials, num_materials, &material);
- num_materials++;
- } else {
- has_previous_material = 1;
- }
-
- /* initial temporary material */
- initMaterial(&material);
-
- /* set new mtl name */
- token += 7;
-#ifdef _MSC_VER
- sscanf_s(token, "%s", namebuf, (unsigned)_countof(namebuf));
-#else
- sscanf(token, "%s", namebuf);
-#endif
- material.name = my_strdup(namebuf, (unsigned int) (line_end - token));
-
- /* Add material to material table */
- if (material_table)
- hash_table_set(material.name, num_materials, material_table);
-
- continue;
- }
-
- /* ambient */
- if (token[0] == 'K' && token[1] == 'a' && IS_SPACE((token[2]))) {
- float r, g, b;
- token += 2;
- parseFloat3(&r, &g, &b, &token);
- material.ambient[0] = r;
- material.ambient[1] = g;
- material.ambient[2] = b;
- continue;
- }
-
- /* diffuse */
- if (token[0] == 'K' && token[1] == 'd' && IS_SPACE((token[2]))) {
- float r, g, b;
- token += 2;
- parseFloat3(&r, &g, &b, &token);
- material.diffuse[0] = r;
- material.diffuse[1] = g;
- material.diffuse[2] = b;
- continue;
- }
-
- /* specular */
- if (token[0] == 'K' && token[1] == 's' && IS_SPACE((token[2]))) {
- float r, g, b;
- token += 2;
- parseFloat3(&r, &g, &b, &token);
- material.specular[0] = r;
- material.specular[1] = g;
- material.specular[2] = b;
- continue;
- }
-
- /* transmittance */
- if (token[0] == 'K' && token[1] == 't' && IS_SPACE((token[2]))) {
- float r, g, b;
- token += 2;
- parseFloat3(&r, &g, &b, &token);
- material.transmittance[0] = r;
- material.transmittance[1] = g;
- material.transmittance[2] = b;
- continue;
- }
-
- /* ior(index of refraction) */
- if (token[0] == 'N' && token[1] == 'i' && IS_SPACE((token[2]))) {
- token += 2;
- material.ior = parseFloat(&token);
- continue;
- }
-
- /* emission */
- if (token[0] == 'K' && token[1] == 'e' && IS_SPACE(token[2])) {
- float r, g, b;
- token += 2;
- parseFloat3(&r, &g, &b, &token);
- material.emission[0] = r;
- material.emission[1] = g;
- material.emission[2] = b;
- continue;
- }
-
- /* shininess */
- if (token[0] == 'N' && token[1] == 's' && IS_SPACE(token[2])) {
- token += 2;
- material.shininess = parseFloat(&token);
- continue;
- }
-
- /* illum model */
- if (0 == strncmp(token, "illum", 5) && IS_SPACE(token[5])) {
- token += 6;
- material.illum = parseInt(&token);
- continue;
- }
-
- /* dissolve */
- if ((token[0] == 'd' && IS_SPACE(token[1]))) {
- token += 1;
- material.dissolve = parseFloat(&token);
- continue;
- }
- if (token[0] == 'T' && token[1] == 'r' && IS_SPACE(token[2])) {
- token += 2;
- /* Invert value of Tr(assume Tr is in range [0, 1]) */
- material.dissolve = 1.0f - parseFloat(&token);
- continue;
- }
-
- /* ambient texture */
- if ((0 == strncmp(token, "map_Ka", 6)) && IS_SPACE(token[6])) {
- token += 7;
- material.ambient_texname = my_strdup(token, (unsigned int) (line_end - token));
- continue;
- }
-
- /* diffuse texture */
- if ((0 == strncmp(token, "map_Kd", 6)) && IS_SPACE(token[6])) {
- token += 7;
- material.diffuse_texname = my_strdup(token, (unsigned int) (line_end - token));
- continue;
- }
-
- /* specular texture */
- if ((0 == strncmp(token, "map_Ks", 6)) && IS_SPACE(token[6])) {
- token += 7;
- material.specular_texname = my_strdup(token, (unsigned int) (line_end - token));
- continue;
- }
-
- /* specular highlight texture */
- if ((0 == strncmp(token, "map_Ns", 6)) && IS_SPACE(token[6])) {
- token += 7;
- material.specular_highlight_texname = my_strdup(token, (unsigned int) (line_end - token));
- continue;
- }
-
- /* bump texture */
- if ((0 == strncmp(token, "map_bump", 8)) && IS_SPACE(token[8])) {
- token += 9;
- material.bump_texname = my_strdup(token, (unsigned int) (line_end - token));
- continue;
- }
-
- /* alpha texture */
- if ((0 == strncmp(token, "map_d", 5)) && IS_SPACE(token[5])) {
- token += 6;
- material.alpha_texname = my_strdup(token, (unsigned int) (line_end - token));
- continue;
- }
-
- /* bump texture */
- if ((0 == strncmp(token, "bump", 4)) && IS_SPACE(token[4])) {
- token += 5;
- material.bump_texname = my_strdup(token, (unsigned int) (line_end - token));
- continue;
- }
-
- /* displacement texture */
- if ((0 == strncmp(token, "disp", 4)) && IS_SPACE(token[4])) {
- token += 5;
- material.displacement_texname = my_strdup(token, (unsigned int) (line_end - token));
- continue;
- }
-
- /* @todo { unknown parameter } */
- }
-
- if (material.name) {
- /* Flush last material element */
- materials = tinyobj_material_add(materials, num_materials, &material);
- num_materials++;
- }
-
- (*num_materials_out) = num_materials;
- (*materials_out) = materials;
-
- if (linebuf) {
- TINYOBJ_FREE(linebuf);
- }
-
- return TINYOBJ_SUCCESS;
-}
-
-int tinyobj_parse_mtl_file(tinyobj_material_t **materials_out,
- unsigned int *num_materials_out,
- const char *filename) {
- return tinyobj_parse_and_index_mtl_file(materials_out, num_materials_out, filename, NULL);
-}
-
-
-typedef enum {
- COMMAND_EMPTY,
- COMMAND_V,
- COMMAND_VN,
- COMMAND_VT,
- COMMAND_F,
- COMMAND_G,
- COMMAND_O,
- COMMAND_USEMTL,
- COMMAND_MTLLIB
-
-} CommandType;
-
-typedef struct {
- float vx, vy, vz;
- float nx, ny, nz;
- float tx, ty;
-
- /* @todo { Use dynamic array } */
- tinyobj_vertex_index_t f[TINYOBJ_MAX_FACES_PER_F_LINE];
- unsigned int num_f;
-
- int f_num_verts[TINYOBJ_MAX_FACES_PER_F_LINE];
- unsigned int num_f_num_verts;
-
- const char *group_name;
- unsigned int group_name_len;
- int pad0;
-
- const char *object_name;
- unsigned int object_name_len;
- int pad1;
-
- const char *material_name;
- unsigned int material_name_len;
- int pad2;
-
- const char *mtllib_name;
- unsigned int mtllib_name_len;
-
- CommandType type;
-} Command;
-
-static int parseLine(Command *command, const char *p, unsigned int p_len,
- int triangulate) {
- char linebuf[4096];
- const char *token;
- assert(p_len < 4095);
-
- memcpy(linebuf, p, p_len);
- linebuf[p_len] = '\0';
-
- token = linebuf;
-
- command->type = COMMAND_EMPTY;
-
- /* Skip leading space. */
- skip_space(&token);
-
- assert(token);
- if (token[0] == '\0') { /* empty line */
- return 0;
- }
-
- if (token[0] == '#') { /* comment line */
- return 0;
- }
-
- /* vertex */
- if (token[0] == 'v' && IS_SPACE((token[1]))) {
- float x, y, z;
- token += 2;
- parseFloat3(&x, &y, &z, &token);
- command->vx = x;
- command->vy = y;
- command->vz = z;
- command->type = COMMAND_V;
- return 1;
- }
-
- /* normal */
- if (token[0] == 'v' && token[1] == 'n' && IS_SPACE((token[2]))) {
- float x, y, z;
- token += 3;
- parseFloat3(&x, &y, &z, &token);
- command->nx = x;
- command->ny = y;
- command->nz = z;
- command->type = COMMAND_VN;
- return 1;
- }
-
- /* texcoord */
- if (token[0] == 'v' && token[1] == 't' && IS_SPACE((token[2]))) {
- float x, y;
- token += 3;
- parseFloat2(&x, &y, &token);
- command->tx = x;
- command->ty = y;
- command->type = COMMAND_VT;
- return 1;
- }
-
- /* face */
- if (token[0] == 'f' && IS_SPACE((token[1]))) {
- unsigned int num_f = 0;
-
- tinyobj_vertex_index_t f[TINYOBJ_MAX_FACES_PER_F_LINE];
- token += 2;
- skip_space(&token);
-
- while (!IS_NEW_LINE(token[0])) {
- tinyobj_vertex_index_t vi = parseRawTriple(&token);
- skip_space_and_cr(&token);
-
- f[num_f] = vi;
- num_f++;
- }
-
- command->type = COMMAND_F;
-
- if (triangulate) {
- unsigned int k;
- unsigned int n = 0;
-
- tinyobj_vertex_index_t i0 = f[0];
- tinyobj_vertex_index_t i1;
- tinyobj_vertex_index_t i2 = f[1];
-
- assert(3 * num_f < TINYOBJ_MAX_FACES_PER_F_LINE);
-
- for (k = 2; k < num_f; k++) {
- i1 = i2;
- i2 = f[k];
- command->f[3 * n + 0] = i0;
- command->f[3 * n + 1] = i1;
- command->f[3 * n + 2] = i2;
-
- command->f_num_verts[n] = 3;
- n++;
- }
- command->num_f = 3 * n;
- command->num_f_num_verts = n;
-
- } else {
- unsigned int k = 0;
- assert(num_f < TINYOBJ_MAX_FACES_PER_F_LINE);
- for (k = 0; k < num_f; k++) {
- command->f[k] = f[k];
- }
-
- command->num_f = num_f;
- command->f_num_verts[0] = (int)num_f;
- command->num_f_num_verts = 1;
- }
-
- return 1;
- }
-
- /* use mtl */
- if ((0 == strncmp(token, "usemtl", 6)) && IS_SPACE((token[6]))) {
- token += 7;
-
- skip_space(&token);
- command->material_name = p + (token - linebuf);
- command->material_name_len = (unsigned int)length_until_newline(
- token, (p_len - (unsigned int)(token - linebuf)) + 1);
- command->type = COMMAND_USEMTL;
-
- return 1;
- }
-
- /* load mtl */
- if ((0 == strncmp(token, "mtllib", 6)) && IS_SPACE((token[6]))) {
- /* By specification, `mtllib` should be appear only once in .obj */
- token += 7;
-
- skip_space(&token);
- command->mtllib_name = p + (token - linebuf);
- command->mtllib_name_len = (unsigned int)length_until_newline(
- token, p_len - (unsigned int)(token - linebuf)) +
- 1;
- command->type = COMMAND_MTLLIB;
-
- return 1;
- }
-
- /* group name */
- if (token[0] == 'g' && IS_SPACE((token[1]))) {
- /* @todo { multiple group name. } */
- token += 2;
-
- command->group_name = p + (token - linebuf);
- command->group_name_len = (unsigned int)length_until_newline(
- token, p_len - (unsigned int)(token - linebuf)) +
- 1;
- command->type = COMMAND_G;
-
- return 1;
- }
-
- /* object name */
- if (token[0] == 'o' && IS_SPACE((token[1]))) {
- /* @todo { multiple object name? } */
- token += 2;
-
- command->object_name = p + (token - linebuf);
- command->object_name_len = (unsigned int)length_until_newline(
- token, p_len - (unsigned int)(token - linebuf)) +
- 1;
- command->type = COMMAND_O;
-
- return 1;
- }
-
- return 0;
-}
-
-typedef struct {
- unsigned int pos;
- unsigned int len;
-} LineInfo;
-
-static int is_line_ending(const char *p, unsigned int i, unsigned int end_i) {
- if (p[i] == '\0') return 1;
- if (p[i] == '\n') return 1; /* this includes \r\n */
- if (p[i] == '\r') {
- if (((i + 1) < end_i) && (p[i + 1] != '\n')) { /* detect only \r case */
- return 1;
- }
- }
- return 0;
-}
-
-int tinyobj_parse_obj(tinyobj_attrib_t *attrib, tinyobj_shape_t **shapes,
- unsigned int *num_shapes, tinyobj_material_t **materials_out,
- unsigned int *num_materials_out, const char *buf, unsigned int len,
- unsigned int flags) {
- LineInfo *line_infos = NULL;
- Command *commands = NULL;
- unsigned int num_lines = 0;
-
- unsigned int num_v = 0;
- unsigned int num_vn = 0;
- unsigned int num_vt = 0;
- unsigned int num_f = 0;
- unsigned int num_faces = 0;
-
- int mtllib_line_index = -1;
-
- tinyobj_material_t *materials = NULL;
- unsigned int num_materials = 0;
-
- hash_table_t material_table;
-
- if (len < 1) return TINYOBJ_ERROR_INVALID_PARAMETER;
- if (attrib == NULL) return TINYOBJ_ERROR_INVALID_PARAMETER;
- if (shapes == NULL) return TINYOBJ_ERROR_INVALID_PARAMETER;
- if (num_shapes == NULL) return TINYOBJ_ERROR_INVALID_PARAMETER;
- if (buf == NULL) return TINYOBJ_ERROR_INVALID_PARAMETER;
- if (materials_out == NULL) return TINYOBJ_ERROR_INVALID_PARAMETER;
- if (num_materials_out == NULL) return TINYOBJ_ERROR_INVALID_PARAMETER;
-
- tinyobj_attrib_init(attrib);
- /* 1. Find '\n' and create line data. */
- {
- unsigned int i;
- unsigned int end_idx = len;
- unsigned int prev_pos = 0;
- unsigned int line_no = 0;
- unsigned int last_line_ending = 0;
-
- /* Count # of lines. */
- for (i = 0; i < end_idx; i++) {
- if (is_line_ending(buf, i, end_idx)) {
- num_lines++;
- last_line_ending = i;
- }
- }
- /* The last char from the input may not be a line
- * ending character so add an extra line if there
- * are more characters after the last line ending
- * that was found. */
- if (end_idx - last_line_ending > 0) {
- num_lines++;
- }
-
- if (num_lines == 0) return TINYOBJ_ERROR_EMPTY;
-
- line_infos = (LineInfo *)TINYOBJ_MALLOC(sizeof(LineInfo) * num_lines);
-
- /* Fill line infos. */
- for (i = 0; i < end_idx; i++) {
- if (is_line_ending(buf, i, end_idx)) {
- line_infos[line_no].pos = prev_pos;
- line_infos[line_no].len = i - prev_pos;
- prev_pos = i + 1;
- line_no++;
- }
- }
- if (end_idx - last_line_ending > 0) {
- line_infos[line_no].pos = prev_pos;
- line_infos[line_no].len = end_idx - 1 - last_line_ending;
- }
- }
-
- commands = (Command *)TINYOBJ_MALLOC(sizeof(Command) * num_lines);
-
- create_hash_table(HASH_TABLE_DEFAULT_SIZE, &material_table);
-
- /* 2. parse each line */
- {
- unsigned int i = 0;
- for (i = 0; i < num_lines; i++) {
- int ret = parseLine(&commands[i], &buf[line_infos[i].pos],
- line_infos[i].len, flags & TINYOBJ_FLAG_TRIANGULATE);
- if (ret) {
- if (commands[i].type == COMMAND_V) {
- num_v++;
- } else if (commands[i].type == COMMAND_VN) {
- num_vn++;
- } else if (commands[i].type == COMMAND_VT) {
- num_vt++;
- } else if (commands[i].type == COMMAND_F) {
- num_f += commands[i].num_f;
- num_faces += commands[i].num_f_num_verts;
- }
-
- if (commands[i].type == COMMAND_MTLLIB) {
- mtllib_line_index = (int)i;
- }
- }
- }
- }
-
- /* line_infos are not used anymore. Release memory. */
- if (line_infos) {
- TINYOBJ_FREE(line_infos);
- }
-
- /* Load material(if exits) */
- if (mtllib_line_index >= 0 && commands[mtllib_line_index].mtllib_name &&
- commands[mtllib_line_index].mtllib_name_len > 0) {
- char *filename = my_strndup(commands[mtllib_line_index].mtllib_name,
- commands[mtllib_line_index].mtllib_name_len);
-
- int ret = tinyobj_parse_and_index_mtl_file(&materials, &num_materials, filename, &material_table);
-
- if (ret != TINYOBJ_SUCCESS) {
- /* warning. */
- fprintf(stderr, "TINYOBJ: Failed to parse material file '%s': %d\n", filename, ret);
- }
-
- TINYOBJ_FREE(filename);
-
- }
-
- /* Construct attributes */
-
- {
- unsigned int v_count = 0;
- unsigned int n_count = 0;
- unsigned int t_count = 0;
- unsigned int f_count = 0;
- unsigned int face_count = 0;
- int material_id = -1; /* -1 = default unknown material. */
- unsigned int i = 0;
-
- attrib->vertices = (float *)TINYOBJ_MALLOC(sizeof(float) * num_v * 3);
- attrib->num_vertices = (unsigned int)num_v;
- attrib->normals = (float *)TINYOBJ_MALLOC(sizeof(float) * num_vn * 3);
- attrib->num_normals = (unsigned int)num_vn;
- attrib->texcoords = (float *)TINYOBJ_MALLOC(sizeof(float) * num_vt * 2);
- attrib->num_texcoords = (unsigned int)num_vt;
- attrib->faces = (tinyobj_vertex_index_t *)TINYOBJ_MALLOC(sizeof(tinyobj_vertex_index_t) * num_f);
- attrib->face_num_verts = (int *)TINYOBJ_MALLOC(sizeof(int) * num_faces);
-
- attrib->num_faces = (unsigned int)num_faces;
- attrib->num_face_num_verts = (unsigned int)num_f;
-
- attrib->material_ids = (int *)TINYOBJ_MALLOC(sizeof(int) * num_faces);
-
- for (i = 0; i < num_lines; i++) {
- if (commands[i].type == COMMAND_EMPTY) {
- continue;
- } else if (commands[i].type == COMMAND_USEMTL) {
- /* @todo
- if (commands[t][i].material_name &&
- commands[t][i].material_name_len > 0) {
- std::string material_name(commands[t][i].material_name,
- commands[t][i].material_name_len);
-
- if (material_map.find(material_name) != material_map.end()) {
- material_id = material_map[material_name];
- } else {
- // Assign invalid material ID
- material_id = -1;
- }
- }
- */
- if (commands[i].material_name &&
- commands[i].material_name_len >0)
- {
- /* Create a null terminated string */
- char* material_name_null_term = (char*) TINYOBJ_MALLOC(commands[i].material_name_len + 1);
- memcpy((void*) material_name_null_term, (const void*) commands[i].material_name, commands[i].material_name_len);
- material_name_null_term[commands[i].material_name_len] = 0;
-
- if (hash_table_exists(material_name_null_term, &material_table))
- material_id = (int)hash_table_get(material_name_null_term, &material_table);
- else
- material_id = -1;
-
- TINYOBJ_FREE(material_name_null_term);
- }
- } else if (commands[i].type == COMMAND_V) {
- attrib->vertices[3 * v_count + 0] = commands[i].vx;
- attrib->vertices[3 * v_count + 1] = commands[i].vy;
- attrib->vertices[3 * v_count + 2] = commands[i].vz;
- v_count++;
- } else if (commands[i].type == COMMAND_VN) {
- attrib->normals[3 * n_count + 0] = commands[i].nx;
- attrib->normals[3 * n_count + 1] = commands[i].ny;
- attrib->normals[3 * n_count + 2] = commands[i].nz;
- n_count++;
- } else if (commands[i].type == COMMAND_VT) {
- attrib->texcoords[2 * t_count + 0] = commands[i].tx;
- attrib->texcoords[2 * t_count + 1] = commands[i].ty;
- t_count++;
- } else if (commands[i].type == COMMAND_F) {
- unsigned int k = 0;
- for (k = 0; k < commands[i].num_f; k++) {
- tinyobj_vertex_index_t vi = commands[i].f[k];
- int v_idx = fixIndex(vi.v_idx, v_count);
- int vn_idx = fixIndex(vi.vn_idx, n_count);
- int vt_idx = fixIndex(vi.vt_idx, t_count);
- attrib->faces[f_count + k].v_idx = v_idx;
- attrib->faces[f_count + k].vn_idx = vn_idx;
- attrib->faces[f_count + k].vt_idx = vt_idx;
- }
-
- for (k = 0; k < commands[i].num_f_num_verts; k++) {
- attrib->material_ids[face_count + k] = material_id;
- attrib->face_num_verts[face_count + k] = commands[i].f_num_verts[k];
- }
-
- f_count += commands[i].num_f;
- face_count += commands[i].num_f_num_verts;
- }
- }
- }
-
- /* 5. Construct shape information. */
- {
- unsigned int face_count = 0;
- unsigned int i = 0;
- unsigned int n = 0;
- unsigned int shape_idx = 0;
-
- const char *shape_name = NULL;
- unsigned int shape_name_len = 0;
- const char *prev_shape_name = NULL;
- unsigned int prev_shape_name_len = 0;
- unsigned int prev_shape_face_offset = 0;
- unsigned int prev_face_offset = 0;
- tinyobj_shape_t prev_shape = {NULL, 0, 0};
-
- /* Find the number of shapes in .obj */
- for (i = 0; i < num_lines; i++) {
- if (commands[i].type == COMMAND_O || commands[i].type == COMMAND_G) {
- n++;
- }
- }
-
- /* Allocate array of shapes with maximum possible size(+1 for unnamed
- * group/object).
- * Actual # of shapes found in .obj is determined in the later */
- (*shapes) = (tinyobj_shape_t*)TINYOBJ_MALLOC(sizeof(tinyobj_shape_t) * (n + 1));
-
- for (i = 0; i < num_lines; i++) {
- if (commands[i].type == COMMAND_O || commands[i].type == COMMAND_G) {
- if (commands[i].type == COMMAND_O) {
- shape_name = commands[i].object_name;
- shape_name_len = commands[i].object_name_len;
- } else {
- shape_name = commands[i].group_name;
- shape_name_len = commands[i].group_name_len;
- }
-
- if (face_count == 0) {
- /* 'o' or 'g' appears before any 'f' */
- prev_shape_name = shape_name;
- prev_shape_name_len = shape_name_len;
- prev_shape_face_offset = face_count;
- prev_face_offset = face_count;
- } else {
- if (shape_idx == 0) {
- /* 'o' or 'g' after some 'v' lines. */
- (*shapes)[shape_idx].name = my_strndup(
- prev_shape_name, prev_shape_name_len); /* may be NULL */
- (*shapes)[shape_idx].face_offset = prev_shape.face_offset;
- (*shapes)[shape_idx].length = face_count - prev_face_offset;
- shape_idx++;
-
- prev_face_offset = face_count;
-
- } else {
- if ((face_count - prev_face_offset) > 0) {
- (*shapes)[shape_idx].name =
- my_strndup(prev_shape_name, prev_shape_name_len);
- (*shapes)[shape_idx].face_offset = prev_face_offset;
- (*shapes)[shape_idx].length = face_count - prev_face_offset;
- shape_idx++;
- prev_face_offset = face_count;
- }
- }
-
- /* Record shape info for succeeding 'o' or 'g' command. */
- prev_shape_name = shape_name;
- prev_shape_name_len = shape_name_len;
- prev_shape_face_offset = face_count;
- }
- }
- if (commands[i].type == COMMAND_F) {
- face_count++;
- }
- }
-
- if ((face_count - prev_face_offset) > 0) {
- unsigned int length = face_count - prev_shape_face_offset;
- if (length > 0) {
- (*shapes)[shape_idx].name =
- my_strndup(prev_shape_name, prev_shape_name_len);
- (*shapes)[shape_idx].face_offset = prev_face_offset;
- (*shapes)[shape_idx].length = face_count - prev_face_offset;
- shape_idx++;
- }
- } else {
- /* Guess no 'v' line occurrence after 'o' or 'g', so discards current
- * shape information. */
- }
-
- (*num_shapes) = shape_idx;
- }
-
- if (commands) {
- TINYOBJ_FREE(commands);
- }
-
- destroy_hash_table(&material_table);
-
- (*materials_out) = materials;
- (*num_materials_out) = num_materials;
-
- return TINYOBJ_SUCCESS;
-}
-
-void tinyobj_attrib_init(tinyobj_attrib_t *attrib) {
- attrib->vertices = NULL;
- attrib->num_vertices = 0;
- attrib->normals = NULL;
- attrib->num_normals = 0;
- attrib->texcoords = NULL;
- attrib->num_texcoords = 0;
- attrib->faces = NULL;
- attrib->num_faces = 0;
- attrib->face_num_verts = NULL;
- attrib->num_face_num_verts = 0;
- attrib->material_ids = NULL;
-}
-
-void tinyobj_attrib_free(tinyobj_attrib_t *attrib) {
- if (attrib->vertices) TINYOBJ_FREE(attrib->vertices);
- if (attrib->normals) TINYOBJ_FREE(attrib->normals);
- if (attrib->texcoords) TINYOBJ_FREE(attrib->texcoords);
- if (attrib->faces) TINYOBJ_FREE(attrib->faces);
- if (attrib->face_num_verts) TINYOBJ_FREE(attrib->face_num_verts);
- if (attrib->material_ids) TINYOBJ_FREE(attrib->material_ids);
-}
-
-void tinyobj_shapes_free(tinyobj_shape_t *shapes, unsigned int num_shapes) {
- unsigned int i;
- if (shapes == NULL) return;
-
- for (i = 0; i < num_shapes; i++) {
- if (shapes[i].name) TINYOBJ_FREE(shapes[i].name);
- }
-
- TINYOBJ_FREE(shapes);
-}
-
-void tinyobj_materials_free(tinyobj_material_t *materials,
- unsigned int num_materials) {
- unsigned int i;
- if (materials == NULL) return;
-
- for (i = 0; i < num_materials; i++) {
- if (materials[i].name) TINYOBJ_FREE(materials[i].name);
- if (materials[i].ambient_texname) TINYOBJ_FREE(materials[i].ambient_texname);
- if (materials[i].diffuse_texname) TINYOBJ_FREE(materials[i].diffuse_texname);
- if (materials[i].specular_texname) TINYOBJ_FREE(materials[i].specular_texname);
- if (materials[i].specular_highlight_texname)
- TINYOBJ_FREE(materials[i].specular_highlight_texname);
- if (materials[i].bump_texname) TINYOBJ_FREE(materials[i].bump_texname);
- if (materials[i].displacement_texname)
- TINYOBJ_FREE(materials[i].displacement_texname);
- if (materials[i].alpha_texname) TINYOBJ_FREE(materials[i].alpha_texname);
- }
-
- TINYOBJ_FREE(materials);
-}
-#endif /* TINYOBJ_LOADER_C_IMPLEMENTATION */
-
-#endif /* TINOBJ_LOADER_C_H_ */
projects / pistorm / blobdiff