/*
- * The copyright in this software is being made available under the 2-clauses
- * BSD License, included below. This software may be subject to other third
+ * The copyright in this software is being made available under the 2-clauses
+ * BSD License, included below. This software may be subject to other third
* party and contributor rights, including patent rights, and no such rights
* are granted under this license.
*
* Copyright (c) 2002-2014, Professor Benoit Macq
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
- * Copyright (c) 2003-2007, Francois-Olivier Devaux
+ * Copyright (c) 2003-2007, Francois-Olivier Devaux
* Copyright (c) 2003-2014, Antonin Descampe
* Copyright (c) 2005, Herve Drolon, FreeImage Team
* All rights reserved.
/*@}*/
-/*
+/*
==========================================================
local functions
==========================================================
*/
-static OPJ_BOOL opj_bio_byteout(opj_bio_t *bio) {
- bio->buf = (bio->buf << 8) & 0xffff;
- bio->ct = bio->buf == 0xff00 ? 7 : 8;
- if ((OPJ_SIZE_T)bio->bp >= (OPJ_SIZE_T)bio->end) {
- return OPJ_FALSE;
- }
- *bio->bp++ = (OPJ_BYTE)(bio->buf >> 8);
- return OPJ_TRUE;
+static OPJ_BOOL opj_bio_byteout(opj_bio_t *bio)
+{
+ bio->buf = (bio->buf << 8) & 0xffff;
+ bio->ct = bio->buf == 0xff00 ? 7 : 8;
+ if ((OPJ_SIZE_T)bio->bp >= (OPJ_SIZE_T)bio->end) {
+ return OPJ_FALSE;
+ }
+ *bio->bp++ = (OPJ_BYTE)(bio->buf >> 8);
+ return OPJ_TRUE;
}
-static OPJ_BOOL opj_bio_bytein(opj_bio_t *bio) {
- bio->buf = (bio->buf << 8) & 0xffff;
- bio->ct = bio->buf == 0xff00 ? 7 : 8;
- if ((OPJ_SIZE_T)bio->bp >= (OPJ_SIZE_T)bio->end) {
- return OPJ_FALSE;
- }
- bio->buf |= *bio->bp++;
- return OPJ_TRUE;
+static OPJ_BOOL opj_bio_bytein(opj_bio_t *bio)
+{
+ bio->buf = (bio->buf << 8) & 0xffff;
+ bio->ct = bio->buf == 0xff00 ? 7 : 8;
+ if ((OPJ_SIZE_T)bio->bp >= (OPJ_SIZE_T)bio->end) {
+ return OPJ_FALSE;
+ }
+ bio->buf |= *bio->bp++;
+ return OPJ_TRUE;
}
-static void opj_bio_putbit(opj_bio_t *bio, OPJ_UINT32 b) {
- if (bio->ct == 0) {
- opj_bio_byteout(bio); /* MSD: why not check the return value of this function ? */
- }
- bio->ct--;
- bio->buf |= b << bio->ct;
+static void opj_bio_putbit(opj_bio_t *bio, OPJ_UINT32 b)
+{
+ if (bio->ct == 0) {
+ opj_bio_byteout(
+ bio); /* MSD: why not check the return value of this function ? */
+ }
+ bio->ct--;
+ bio->buf |= b << bio->ct;
}
-static OPJ_UINT32 opj_bio_getbit(opj_bio_t *bio) {
- if (bio->ct == 0) {
- opj_bio_bytein(bio); /* MSD: why not check the return value of this function ? */
- }
- bio->ct--;
- return (bio->buf >> bio->ct) & 1;
+static OPJ_UINT32 opj_bio_getbit(opj_bio_t *bio)
+{
+ if (bio->ct == 0) {
+ opj_bio_bytein(
+ bio); /* MSD: why not check the return value of this function ? */
+ }
+ bio->ct--;
+ return (bio->buf >> bio->ct) & 1;
}
-/*
+/*
==========================================================
Bit Input/Output interface
==========================================================
*/
-opj_bio_t* opj_bio_create(void) {
- opj_bio_t *bio = (opj_bio_t*)opj_malloc(sizeof(opj_bio_t));
- return bio;
+opj_bio_t* opj_bio_create(void)
+{
+ opj_bio_t *bio = (opj_bio_t*)opj_malloc(sizeof(opj_bio_t));
+ return bio;
}
-void opj_bio_destroy(opj_bio_t *bio) {
- if(bio) {
- opj_free(bio);
- }
+void opj_bio_destroy(opj_bio_t *bio)
+{
+ if (bio) {
+ opj_free(bio);
+ }
}
-ptrdiff_t opj_bio_numbytes(opj_bio_t *bio) {
- return (bio->bp - bio->start);
+ptrdiff_t opj_bio_numbytes(opj_bio_t *bio)
+{
+ return (bio->bp - bio->start);
}
-void opj_bio_init_enc(opj_bio_t *bio, OPJ_BYTE *bp, OPJ_UINT32 len) {
- bio->start = bp;
- bio->end = bp + len;
- bio->bp = bp;
- bio->buf = 0;
- bio->ct = 8;
+void opj_bio_init_enc(opj_bio_t *bio, OPJ_BYTE *bp, OPJ_UINT32 len)
+{
+ bio->start = bp;
+ bio->end = bp + len;
+ bio->bp = bp;
+ bio->buf = 0;
+ bio->ct = 8;
}
-void opj_bio_init_dec(opj_bio_t *bio, OPJ_BYTE *bp, OPJ_UINT32 len) {
- bio->start = bp;
- bio->end = bp + len;
- bio->bp = bp;
- bio->buf = 0;
- bio->ct = 0;
+void opj_bio_init_dec(opj_bio_t *bio, OPJ_BYTE *bp, OPJ_UINT32 len)
+{
+ bio->start = bp;
+ bio->end = bp + len;
+ bio->bp = bp;
+ bio->buf = 0;
+ bio->ct = 0;
}
OPJ_NOSANITIZE("unsigned-integer-overflow")
-void opj_bio_write(opj_bio_t *bio, OPJ_UINT32 v, OPJ_UINT32 n) {
- OPJ_UINT32 i;
-
- assert((n > 0U) && (n <= 32U));
- for (i = n - 1; i < n; i--) { /* overflow used for end-loop condition */
- opj_bio_putbit(bio, (v >> i) & 1);
- }
+void opj_bio_write(opj_bio_t *bio, OPJ_UINT32 v, OPJ_UINT32 n)
+{
+ OPJ_UINT32 i;
+
+ assert((n > 0U) && (n <= 32U));
+ for (i = n - 1; i < n; i--) { /* overflow used for end-loop condition */
+ opj_bio_putbit(bio, (v >> i) & 1);
+ }
}
OPJ_NOSANITIZE("unsigned-integer-overflow")
-OPJ_UINT32 opj_bio_read(opj_bio_t *bio, OPJ_UINT32 n) {
- OPJ_UINT32 i;
- OPJ_UINT32 v;
-
- assert((n > 0U) /* && (n <= 32U)*/);
+OPJ_UINT32 opj_bio_read(opj_bio_t *bio, OPJ_UINT32 n)
+{
+ OPJ_UINT32 i;
+ OPJ_UINT32 v;
+
+ assert((n > 0U) /* && (n <= 32U)*/);
#ifdef OPJ_UBSAN_BUILD
- /* This assert fails for some corrupted images which are gracefully rejected */
- /* Add this assert only for ubsan build. */
- /* This is the condition for overflow not to occur below which is needed because of OPJ_NOSANITIZE */
- assert(n <= 32U);
+ /* This assert fails for some corrupted images which are gracefully rejected */
+ /* Add this assert only for ubsan build. */
+ /* This is the condition for overflow not to occur below which is needed because of OPJ_NOSANITIZE */
+ assert(n <= 32U);
#endif
- v = 0U;
- for (i = n - 1; i < n; i--) { /* overflow used for end-loop condition */
- v |= opj_bio_getbit(bio) << i; /* can't overflow, opj_bio_getbit returns 0 or 1 */
- }
- return v;
+ v = 0U;
+ for (i = n - 1; i < n; i--) { /* overflow used for end-loop condition */
+ v |= opj_bio_getbit(bio) <<
+ i; /* can't overflow, opj_bio_getbit returns 0 or 1 */
+ }
+ return v;
}
-OPJ_BOOL opj_bio_flush(opj_bio_t *bio) {
- if (! opj_bio_byteout(bio)) {
- return OPJ_FALSE;
- }
- if (bio->ct == 7) {
- if (! opj_bio_byteout(bio)) {
- return OPJ_FALSE;
- }
- }
- return OPJ_TRUE;
+OPJ_BOOL opj_bio_flush(opj_bio_t *bio)
+{
+ if (! opj_bio_byteout(bio)) {
+ return OPJ_FALSE;
+ }
+ if (bio->ct == 7) {
+ if (! opj_bio_byteout(bio)) {
+ return OPJ_FALSE;
+ }
+ }
+ return OPJ_TRUE;
}
-OPJ_BOOL opj_bio_inalign(opj_bio_t *bio) {
- if ((bio->buf & 0xff) == 0xff) {
- if (! opj_bio_bytein(bio)) {
- return OPJ_FALSE;
- }
- }
- bio->ct = 0;
- return OPJ_TRUE;
+OPJ_BOOL opj_bio_inalign(opj_bio_t *bio)
+{
+ if ((bio->buf & 0xff) == 0xff) {
+ if (! opj_bio_bytein(bio)) {
+ return OPJ_FALSE;
+ }
+ }
+ bio->ct = 0;
+ return OPJ_TRUE;
}
projects / openjpeg.git / blobdiff