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Code Issues Wiki Activity

Re #3167: Stb library modifed to reduce its stack usage.

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This commit is contained in:
Damjan Adamic 2016-02-27 17:31:27 +01:00
parent 5cc8f41bce
commit bdb50052ba
1 changed files with 122 additions and 59 deletions
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181
radio/src/thirdparty/Stb/stb_image.h vendored
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@ -3408,20 +3408,28 @@ static stbi_uc *load_jpeg_image(stbi__jpeg *z, int *out_x, int *out_y, int *comp
static unsigned char *stbi__jpeg_load(stbi__context *s, int *x, int *y, int *comp, int req_comp)
{
stbi__jpeg j;
j.s = s;
stbi__setup_jpeg(&j);
return load_jpeg_image(&j, x,y,comp,req_comp);
unsigned char * r;
stbi__jpeg * j;
j = (stbi__jpeg *) stbi__malloc(sizeof(stbi__jpeg));
if (!j) return 0;
j->s = s;
stbi__setup_jpeg(j);
r = load_jpeg_image(j, x,y,comp,req_comp);
STBI_FREE(j);
return r;
}
static int stbi__jpeg_test(stbi__context *s)
{
int r;
stbi__jpeg j;
j.s = s;
stbi__setup_jpeg(&j);
r = stbi__decode_jpeg_header(&j, STBI__SCAN_type);
stbi__jpeg * j;
j = (stbi__jpeg *) stbi__malloc(sizeof(stbi__jpeg));
if (!j) return 0;
j->s = s;
stbi__setup_jpeg(j);
r = stbi__decode_jpeg_header(j, STBI__SCAN_type);
stbi__rewind(s);
STBI_FREE(j);
return r;
}
@ -3439,9 +3447,14 @@ static int stbi__jpeg_info_raw(stbi__jpeg *j, int *x, int *y, int *comp)
static int stbi__jpeg_info(stbi__context *s, int *x, int *y, int *comp)
{
stbi__jpeg j;
j.s = s;
return stbi__jpeg_info_raw(&j, x, y, comp);
int r;
stbi__jpeg * j;
j = (stbi__jpeg *) stbi__malloc(sizeof(stbi__jpeg));
if (!j) return 0;
j->s = s;
r = stbi__jpeg_info_raw(j, x, y, comp);
STBI_FREE(j);
return r;
}
#endif
@ -3828,16 +3841,25 @@ static int stbi__do_zlib(stbi__zbuf *a, char *obuf, int olen, int exp, int parse
STBIDEF char *stbi_zlib_decode_malloc_guesssize(const char *buffer, int len, int initial_size, int *outlen)
{
stbi__zbuf a;
char * r;
stbi__zbuf * a;
a = (stbi__zbuf *) stbi__malloc(sizeof(stbi__zbuf));
if (!a) return 0;
char *p = (char *) stbi__malloc(initial_size);
if (p == NULL) return NULL;
a.zbuffer = (stbi_uc *) buffer;
a.zbuffer_end = (stbi_uc *) buffer + len;
if (stbi__do_zlib(&a, p, initial_size, 1, 1)) {
if (outlen) *outlen = (int) (a.zout - a.zout_start);
return a.zout_start;
if (p == NULL) {
STBI_FREE(a);
return NULL;
}
a->zbuffer = (stbi_uc *) buffer;
a->zbuffer_end = (stbi_uc *) buffer + len;
if (stbi__do_zlib(a, p, initial_size, 1, 1)) {
if (outlen) *outlen = (int) (a->zout - a->zout_start);
r = a->zout_start;
STBI_FREE(a);
return r;
} else {
STBI_FREE(a.zout_start);
STBI_FREE(a->zout_start);
STBI_FREE(a);
return NULL;
}
}
@ -3849,56 +3871,90 @@ STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
STBIDEF char *stbi_zlib_decode_malloc_guesssize_headerflag(const char *buffer, int len, int initial_size, int *outlen, int parse_header)
{
stbi__zbuf a;
char * r;
stbi__zbuf * a;
a = (stbi__zbuf *) stbi__malloc(sizeof(stbi__zbuf));
if (!a) return 0;
char *p = (char *) stbi__malloc(initial_size);
if (p == NULL) return NULL;
a.zbuffer = (stbi_uc *) buffer;
a.zbuffer_end = (stbi_uc *) buffer + len;
if (stbi__do_zlib(&a, p, initial_size, 1, parse_header)) {
if (outlen) *outlen = (int) (a.zout - a.zout_start);
return a.zout_start;
if (p == NULL) {
STBI_FREE(a);
return NULL;
}
a->zbuffer = (stbi_uc *) buffer;
a->zbuffer_end = (stbi_uc *) buffer + len;
if (stbi__do_zlib(a, p, initial_size, 1, parse_header)) {
if (outlen) *outlen = (int) (a->zout - a->zout_start);
r = a->zout_start;
STBI_FREE(a);
return r;
} else {
STBI_FREE(a.zout_start);
STBI_FREE(a->zout_start);
STBI_FREE(a);
return NULL;
}
}
STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
{
stbi__zbuf a;
a.zbuffer = (stbi_uc *) ibuffer;
a.zbuffer_end = (stbi_uc *) ibuffer + ilen;
if (stbi__do_zlib(&a, obuffer, olen, 0, 1))
return (int) (a.zout - a.zout_start);
else
int r;
stbi__zbuf * a;
a = (stbi__zbuf *) stbi__malloc(sizeof(stbi__zbuf));
if (!a) return -1;
a->zbuffer = (stbi_uc *) ibuffer;
a->zbuffer_end = (stbi_uc *) ibuffer + ilen;
if (stbi__do_zlib(a, obuffer, olen, 0, 1)) {
r = (int) (a->zout - a->zout_start);
STBI_FREE(a);
return r;
}
else {
STBI_FREE(a);
return -1;
}
}
STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
{
stbi__zbuf a;
char * r;
stbi__zbuf * a;
a = (stbi__zbuf *) stbi__malloc(sizeof(stbi__zbuf));
if (!a) return NULL;
char *p = (char *) stbi__malloc(16384);
if (p == NULL) return NULL;
a.zbuffer = (stbi_uc *) buffer;
a.zbuffer_end = (stbi_uc *) buffer+len;
if (stbi__do_zlib(&a, p, 16384, 1, 0)) {
if (outlen) *outlen = (int) (a.zout - a.zout_start);
return a.zout_start;
if (p == NULL) {
STBI_FREE(a);
return NULL;
}
a->zbuffer = (stbi_uc *) buffer;
a->zbuffer_end = (stbi_uc *) buffer+len;
if (stbi__do_zlib(a, p, 16384, 1, 0)) {
if (outlen) *outlen = (int) (a->zout - a->zout_start);
r = a->zout_start;
STBI_FREE(a);
return r;
} else {
STBI_FREE(a.zout_start);
STBI_FREE(a->zout_start);
STBI_FREE(a);
return NULL;
}
}
STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
{
stbi__zbuf a;
a.zbuffer = (stbi_uc *) ibuffer;
a.zbuffer_end = (stbi_uc *) ibuffer + ilen;
if (stbi__do_zlib(&a, obuffer, olen, 0, 0))
return (int) (a.zout - a.zout_start);
else
int r;
stbi__zbuf * a;
a = (stbi__zbuf *) stbi__malloc(sizeof(stbi__zbuf));
if (!a) return -1;
a->zbuffer = (stbi_uc *) ibuffer;
a->zbuffer_end = (stbi_uc *) ibuffer + ilen;
if (stbi__do_zlib(a, obuffer, olen, 0, 0)) {
r = (int) (a->zout - a->zout_start);
STBI_FREE(a);
return r;
}
else {
STBI_FREE(a);
return -1;
}
}
#endif
@ -5649,13 +5705,17 @@ static int stbi__gif_header(stbi__context *s, stbi__gif *g, int *comp, int is_in
static int stbi__gif_info_raw(stbi__context *s, int *x, int *y, int *comp)
{
stbi__gif g;
if (!stbi__gif_header(s, &g, comp, 1)) {
stbi__gif * g;
g = (stbi__gif *) stbi__malloc(sizeof(stbi__gif));
if (!g) return 0;
if (!stbi__gif_header(s, g, comp, 1)) {
stbi__rewind( s );
STBI_FREE(g);
return 0;
}
if (x) *x = g.w;
if (y) *y = g.h;
if (x) *x = g->w;
if (y) *y = g->h;
STBI_FREE(g);
return 1;
}
@ -5908,20 +5968,23 @@ static stbi_uc *stbi__gif_load_next(stbi__context *s, stbi__gif *g, int *comp, i
static stbi_uc *stbi__gif_load(stbi__context *s, int *x, int *y, int *comp, int req_comp)
{
stbi_uc *u = 0;
stbi__gif g;
memset(&g, 0, sizeof(g));
stbi__gif * g;
g = (stbi__gif *) stbi__malloc(sizeof(stbi__gif));
if (!g) return 0;
memset(g, 0, sizeof(stbi__gif));
u = stbi__gif_load_next(s, &g, comp, req_comp);
u = stbi__gif_load_next(s, g, comp, req_comp);
if (u == (stbi_uc *) s) u = 0; // end of animated gif marker
if (u) {
*x = g.w;
*y = g.h;
*x = g->w;
*y = g->h;
if (req_comp && req_comp != 4)
u = stbi__convert_format(u, 4, req_comp, g.w, g.h);
u = stbi__convert_format(u, 4, req_comp, g->w, g->h);
}
else if (g.out)
STBI_FREE(g.out);
else if (g->out)
STBI_FREE(g->out);
STBI_FREE(g);
return u;
}