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Reallocate in chunks in assemble_obj_arrays()

This commit is contained in:
hasufell 2014-06-07 01:59:23 +02:00
parent 9ae8fac4e2
commit 2df0e3eff8
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GPG Key ID: 220CD1C5BDEED020
1 changed files with 91 additions and 27 deletions
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118
src/half_edge_AS.c
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@ -92,6 +92,19 @@ static bool assemble_obj_arrays(char const * const obj_string,
V_TEXTURES obj_vt = NULL;
BEZIER_CURV bez = NULL;
/* allocator chunks/counts */
const int32_t obj_v_alloc_chunk = 200;
int32_t obj_v_alloc_c = 0;
const int32_t obj_vt_alloc_chunk = 200;
int32_t obj_vt_alloc_c = 0;
const int32_t obj_f_v_alloc_chunk = 200;
int32_t obj_f_v_alloc_c = 0;
const int32_t obj_f_vt_alloc_chunk = 200;
int32_t obj_f_vt_alloc_c = 0;
const int32_t bez_alloc_chunk = 3;
int32_t bez_alloc_c = 0;
if (!obj_string || !raw_obj)
return false;
@ -114,14 +127,18 @@ static bool assemble_obj_arrays(char const * const obj_string,
char *myint = NULL;
uint8_t i = 0;
REALLOC(obj_v, sizeof(*obj_v) * (vc + 2));
obj_v[vc] = NULL;
while ((myint = strtok_r(NULL, " ", &str_ptr_space))) {
i++;
/* allocate in chunks */
if (!obj_v_alloc_c ||
(int32_t)vc > (obj_v_alloc_c - 2)) {
obj_v_alloc_c += obj_v_alloc_chunk;
REALLOC(obj_v, sizeof(*obj_v) * obj_v_alloc_c);
}
REALLOC(obj_v[vc],
sizeof(**obj_v) * (i + 1));
obj_v[vc][i - 1] = atof(myint);
obj_v[vc] = malloc(sizeof(**obj_v) * 4);
while ((myint = strtok_r(NULL, " ", &str_ptr_space))) {
obj_v[vc][i] = atof(myint);
i++;
if (i > 3)
ABORT("Malformed vertice exceeds 3 dimensions!\n");
@ -136,14 +153,18 @@ static bool assemble_obj_arrays(char const * const obj_string,
char *myint = NULL;
uint8_t i = 0;
REALLOC(obj_vt, sizeof(*obj_vt) * (vtc + 2));
obj_vt[vtc] = NULL;
while ((myint = strtok_r(NULL, " ", &str_ptr_space))) {
i++;
/* allocate in chunks */
if (!obj_vt_alloc_c ||
(int32_t)vtc > (obj_vt_alloc_c - 2)) {
obj_vt_alloc_c += obj_vt_alloc_chunk;
REALLOC(obj_vt, sizeof(*obj_vt) * obj_vt_alloc_c);
}
REALLOC(obj_vt[vtc],
sizeof(**obj_vt) * (i + 1));
obj_vt[vtc][i - 1] = atof(myint);
obj_vt[vtc] = malloc(sizeof(**obj_vt) * 4);
while ((myint = strtok_r(NULL, " ", &str_ptr_space))) {
obj_vt[vtc][i] = atof(myint);
i++;
if (i > 3)
ABORT("Malformed vertice texture exceeds 3 dimensions!\n");
@ -158,11 +179,27 @@ static bool assemble_obj_arrays(char const * const obj_string,
char *myint_v = NULL,
*myint_vt = NULL;
uint8_t i = 0;
const int32_t obj_f_v_arr_chunk = 5;
int32_t obj_f_v_arr_c = 0;
const int32_t obj_f_vt_arr_chunk = 5;
int32_t obj_f_vt_arr_c = 0;
/* allocate in chunks */
if (!obj_f_v_alloc_c ||
(int32_t)fc > (obj_f_v_alloc_c - 2)) {
obj_f_v_alloc_c += obj_f_v_alloc_chunk;
REALLOC(obj_f_v, sizeof(*obj_f_v) * obj_f_v_alloc_c);
}
REALLOC(obj_f_v, sizeof(*obj_f_v) * (fc + 2));
obj_f_v[fc] = NULL;
REALLOC(obj_f_vt, sizeof(*obj_f_vt) * (fc + 2));
/* allocate in chunks */
if (!obj_f_vt_alloc_c ||
(int32_t)fc > (obj_f_vt_alloc_c - 2)) {
obj_f_vt_alloc_c += obj_f_vt_alloc_chunk;
REALLOC(obj_f_vt, sizeof(*obj_f_vt) * obj_f_vt_alloc_c);
}
obj_f_vt[fc] = NULL;
while ((myint_v = strtok_r(NULL, " ", &str_ptr_space))) {
@ -172,19 +209,34 @@ static bool assemble_obj_arrays(char const * const obj_string,
else
free(obj_f_vt); /* seems there is no vt, free the array */
i++;
ec++;
REALLOC(obj_f_v[fc],
sizeof(**obj_f_v) * (i + 1));
obj_f_v[fc][i - 1] = atoi(myint_v);
/* allocate in chunks */
if (!obj_f_v_arr_c ||
(int32_t)i > obj_f_v_arr_c - 2) {
obj_f_v_arr_c += obj_f_v_arr_chunk;
REALLOC(obj_f_v[fc],
sizeof(**obj_f_v) * obj_f_v_arr_c);
}
obj_f_v[fc][i] = atoi(myint_v);
i++;
/* so we can iterate over it more easily */
obj_f_v[fc][i] = 0;
/* parse x from "0.3/x" */
if ((myint_vt = strtok_r(NULL, "/", &str_ptr_slash))) {
REALLOC(obj_f_vt[fc],
sizeof(**obj_f_vt) * (i + 1));
/* allocate in chunks */
if (!obj_f_vt_arr_c ||
(int32_t)i > obj_f_vt_arr_c - 2) {
obj_f_vt_arr_c += obj_f_vt_arr_chunk;
REALLOC(obj_f_vt[fc],
sizeof(**obj_f_vt) * obj_f_vt_arr_c);
}
obj_f_vt[fc][i - 1] = atoi(myint_vt);
/* so we can iterate over it more easily */
obj_f_vt[fc][i] = 0;
@ -199,15 +251,27 @@ static bool assemble_obj_arrays(char const * const obj_string,
} else if (!strcmp(str_tmp_ptr, "curv")) {
char *myint = NULL;
uint8_t i = 0;
const int32_t bez_arr_alloc_chunk = 5;
int32_t bez_arr_alloc_c = 0;
REALLOC(bez, sizeof(*bez) * (bzc + 2));
/* allocate in chunks */
if (!bez_alloc_c ||
(int32_t)bzc > bez_alloc_c - 2) {
bez_alloc_c += bez_alloc_chunk;
REALLOC(bez, sizeof(*bez) * bez_alloc_c);
}
bez[bzc] = NULL;
while ((myint = strtok_r(NULL, " ", &str_ptr_space))) {
i++;
REALLOC(bez[bzc],
sizeof(**bez) * (i + 1));
bez[bzc][i - 1] = atoi(myint);
/* allocate in chunks */
if (!bez_arr_alloc_c ||
(int32_t)bzc > bez_arr_alloc_c - 2) {
bez_arr_alloc_c += bez_arr_alloc_chunk;
REALLOC(bez[bzc], sizeof(**bez) * bez_arr_alloc_c);
}
bez[bzc][i] = atoi(myint);
i++;
bez[bzc][i] = 0;
}
bzc++;