void
evas_model_load_file_obj(Evas_Canvas3D_Mesh *mesh, Eina_File *file)
{
long i;
OBJ_Counts counts;//count elements of mesh in .obj
Eina_Bool will_check_next_char = EINA_FALSE;
Eina_Bool first_char_is_v = EINA_FALSE;
Eina_Bool first_char_is_f = EINA_FALSE;
float *pos = NULL, *nor = NULL, *tex = NULL;
int stride_pos = 0, stride_nor = 0, stride_tex = 0;
int j, k, data_for_one_point;
char *current, *map;
float *_vertices_obj = NULL, *_normales_obj = NULL, *_tex_coords_obj = NULL;
int *_triangles;
map = eina_file_map_all(file, EINA_FILE_SEQUENTIAL);
if (map == NULL)
{
ERR("Failed to create map from file %s\n", eina_file_filename_get(file));
return;
}
counts = _count_elements(map);
_vertices_obj = malloc(counts._vertex_counter * 3 * sizeof(float));
data_for_one_point = 1;
if (counts.existence_of_normal)
{
data_for_one_point++;
_normales_obj = malloc(counts._normal_counter * 3 * sizeof(float));
}
if (counts.existence_of_tex_point)
{
data_for_one_point++;
_tex_coords_obj = malloc(counts._texture_point_counter * 3 * sizeof(float));
}
_triangles = malloc(counts._triangles_counter * 9 * sizeof(int));
if ((map == NULL) || (_vertices_obj == NULL) || (_triangles == NULL) ||
((counts.existence_of_normal) && (_normales_obj == NULL)) ||
((counts.existence_of_tex_point) && (_tex_coords_obj == NULL)))
{
ERR("Allocate memory is failed.");
free(_vertices_obj);
free(_triangles);
if (counts.existence_of_normal)
free(_normales_obj);
if (counts.existence_of_tex_point)
free(_tex_coords_obj);
return;
}
current = map;
i = 0;
/* put data to arrays */
for (; *current != '\00'; i++)
{
if (will_check_next_char)
{
if (first_char_is_v)
{
switch (*current)
{
case ' ':
PUT_DATA_TO_ARRAY(vertices, vertex)
i--;
break;
case 't':
current++;
if (counts.existence_of_tex_point)
{
PUT_DATA_TO_ARRAY(tex_coords, texture_point)
}
break;
case 'n':
current++;
if (counts.existence_of_normal)
{
PUT_DATA_TO_ARRAY(normales, normal)
}
break;
default:
break;
}
first_char_is_v = EINA_FALSE;
will_check_next_char = EINA_FALSE;
}
else if (first_char_is_f)
{
char *auxiliary_pointer = current;
int count_of_triangles_in_line;
int the_first_point = counts.current_triangles_counter;
_analyze_face_line(auxiliary_pointer,
&count_of_triangles_in_line);
current++;
i++;
_read_point(_triangles, 1, counts,
the_first_point,
current);
AFTER_NEXT_SPACE(current)
for (j = 0; j < count_of_triangles_in_line; j++)
{
auxiliary_pointer = current;
if (counts.current_triangles_counter != the_first_point)
{
ARRAY_2D(_triangles, counts.current_triangles_counter, 0, 9) = \
ARRAY_2D(_triangles, the_first_point, 0, 9);
ARRAY_2D(_triangles, counts.current_triangles_counter, 1, 9) = \
ARRAY_2D(_triangles, the_first_point, 1, 9);
ARRAY_2D(_triangles, counts.current_triangles_counter, 2, 9) = \
ARRAY_2D(_triangles, the_first_point, 2, 9);
}
_read_point(_triangles, 2, counts,
counts.current_triangles_counter,
auxiliary_pointer);
AFTER_NEXT_SPACE(auxiliary_pointer);
_read_point(_triangles, 3, counts,
counts.current_triangles_counter,
auxiliary_pointer);
AFTER_NEXT_SPACE(current);
counts.current_triangles_counter++;
}
first_char_is_f = EINA_FALSE;
}
else
{
switch (*current)
{
case 'v':
first_char_is_v = EINA_TRUE;
break;
case 'f':
first_char_is_f = EINA_TRUE;
break;
case 'm':
will_check_next_char = EINA_FALSE;
break;
default:
will_check_next_char = EINA_FALSE;
break;
}
}
}
void
evas_3d_mesh_file_obj_set(Evas_3D_Mesh *mesh, const char *file)
{
long length, i;
char * start = _file_to_buf(file, &length);
OBJ_Counts counts = _count_elements(start, length);//count elements of mesh in .obj
Eina_Bool will_check_next_char = EINA_FALSE;
Eina_Bool first_char_is_v = EINA_FALSE;
Eina_Bool first_char_is_f = EINA_FALSE;
float *pos, *nor, *tex;
int stride_pos, stride_nor, stride_tex;
int j, k;
char * current;
float *_vertices_obj = malloc(counts._vertex_counter * 3 * sizeof(float));
float *_normales_obj = malloc(counts._normal_counter * 3 * sizeof(float));
float *_tex_coords_obj = malloc(counts._texture_point_counter * 3 * sizeof(float));
/* triangle has 3 points, every point has 3(vertix, texture and normal) coord */
int *_triangles = malloc(counts._triangles_counter * 9 * sizeof(int));
if ((start == NULL) || (_vertices_obj == NULL) ||
(_normales_obj == NULL) || (_tex_coords_obj == NULL) || (_triangles == NULL))
{
ERR("Allocate memory is failed.");
free(start);
free(_vertices_obj);
free(_normales_obj);
free(_tex_coords_obj);
free(_triangles);
return;
}
current = start;
i = 0;
/* put data to arrays */
for (; length > i; i++)
{
if (will_check_next_char)
{
if (first_char_is_v)
{
switch (*current)
{
case ' ':
PUT_DATA_TO_ARRAY(vertices, vertex)
i--;
break;
case 't':
current++;
PUT_DATA_TO_ARRAY(tex_coords, texture_point)
break;
case 'n':
current++;
PUT_DATA_TO_ARRAY(normales, normal)
break;
default:
break;
}
first_char_is_v = EINA_FALSE;
will_check_next_char = EINA_FALSE;
}
else if (first_char_is_f)
{
char * auxiliary_pointer = current;
int count_of_triangles_in_line;
_analyze_face_line(auxiliary_pointer,
&count_of_triangles_in_line);
current++;
i++;
int first_pos, first_tex, first_norm;
sscanf (current,"%i/%i/%i",
&first_pos,
&first_tex,
&first_norm);
do
{
current++;
i++;
}
while (*current != ' ');
current++;
i++;
for (j = 0; j < count_of_triangles_in_line; j++)
{
auxiliary_pointer = current;
ARRAY_2D(_triangles, counts.current_triangles_counter, 0, 9) = first_pos;
ARRAY_2D(_triangles, counts.current_triangles_counter, 1, 9) = first_tex;
ARRAY_2D(_triangles, counts.current_triangles_counter, 2, 9) = first_norm;
sscanf (auxiliary_pointer,"%i/%i/%i %i/%i/%i",
&ARRAY_2D(_triangles, counts.current_triangles_counter, 3, 9),
&ARRAY_2D(_triangles, counts.current_triangles_counter, 4, 9),
&ARRAY_2D(_triangles, counts.current_triangles_counter, 5, 9),
&ARRAY_2D(_triangles, counts.current_triangles_counter, 6, 9),
&ARRAY_2D(_triangles, counts.current_triangles_counter, 7, 9),
&ARRAY_2D(_triangles, counts.current_triangles_counter, 8, 9));
while (*current != ' ')
{
current++;
i++;
}
counts.current_triangles_counter++;
}
first_char_is_f = EINA_FALSE;
}
else
{
switch (*current)
{
case 'v':
first_char_is_v = EINA_TRUE;
break;
case 'f':
first_char_is_f = EINA_TRUE;
break;
case 'm':
will_check_next_char = EINA_FALSE;
break;
default:
will_check_next_char = EINA_FALSE;
break;
}
}
}
else if (*current == '\n')