walkero
/
openjpeg
1
0
Fork 0
Code Issues Pull Requests Projects Releases 1 Wiki Activity
openjpeg/src/lib/openjpip/msgqueue_manager.c

820 lines
23 KiB
C
Raw Permalink Blame History

/*
* $Id$
*
* Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
* Copyright (c) 2002-2014, Professor Benoit Macq
* Copyright (c) 2010-2011, Kaori Hagihara
* Copyright (c) 2011, Lucian Corlaciu, GSoC
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <string.h>
#include <ctype.h>
#include <assert.h>
#include <limits.h>
#ifdef _WIN32
#include <io.h>
#else
#include <unistd.h>
#endif
#include "msgqueue_manager.h"
#include "metadata_manager.h"
#include "index_manager.h"
#include "opj_inttypes.h"
#ifdef SERVER
#include "fcgi_stdio.h"
#define logstream FCGI_stdout
#else
#define FCGI_stdout stdout
#define FCGI_stderr stderr
#define logstream stderr
#endif /*SERVER*/
msgqueue_param_t * gene_msgqueue(OPJ_BOOL stateless,
cachemodel_param_t *cachemodel)
{
msgqueue_param_t *msgqueue;
msgqueue = (msgqueue_param_t *)opj_malloc(sizeof(msgqueue_param_t));
msgqueue->first = NULL;
msgqueue->last = NULL;
msgqueue->stateless = stateless;
msgqueue->cachemodel = cachemodel;
return msgqueue;
}
void delete_msgqueue(msgqueue_param_t **msgqueue)
{
message_param_t *ptr, *next;
if (!(*msgqueue)) {
return;
}
ptr = (*msgqueue)->first;
while (ptr) {
next = ptr->next;
opj_free(ptr);
ptr = next;
}
if ((*msgqueue)->stateless && (*msgqueue)->cachemodel) {
delete_cachemodel(&((*msgqueue)->cachemodel));
}
opj_free(*msgqueue);
}
void print_msgqueue(msgqueue_param_t *msgqueue)
{
message_param_t *ptr;
static const char *message_class[] = { "Precinct", "Ext-Prec", "TileHead", "non",
"Tile", "Ext-Tile", "Main", "non", "Meta"
};
if (!msgqueue) {
return;
}
fprintf(logstream, "message queue:\n");
ptr = msgqueue->first;
while (ptr) {
fprintf(logstream, "\t class_id: %" PRId64 " %s\n", ptr->class_id,
message_class[ptr->class_id]);
fprintf(logstream, "\t in_class_id: %" PRId64 "\n", ptr->in_class_id);
fprintf(logstream, "\t csn: %" PRId64 "\n", ptr->csn);
fprintf(logstream, "\t bin_offset: %#" PRIx64 "\n", ptr->bin_offset);
fprintf(logstream, "\t length: %#" PRIx64 "\n", ptr->length);
if (ptr->class_id % 2) {
fprintf(logstream, "\t aux: %" PRId64 "\n", ptr->aux);
}
fprintf(logstream, "\t last_byte: %d\n", ptr->last_byte);
if (ptr->phld) {
print_placeholder(ptr->phld);
} else {
fprintf(logstream, "\t res_offset: %#" PRIx64 "\n", ptr->res_offset);
}
fprintf(logstream, "\n");
ptr = ptr->next;
}
}
void enqueue_message(message_param_t *msg, msgqueue_param_t *msgqueue);
void enqueue_mainheader(msgqueue_param_t *msgqueue)
{
cachemodel_param_t *cachemodel;
target_param_t *target;
index_param_t *codeidx;
message_param_t *msg;
cachemodel = msgqueue->cachemodel;
target = cachemodel->target;
codeidx = target->codeidx;
msg = (message_param_t *)opj_malloc(sizeof(message_param_t));
msg->last_byte = OPJ_TRUE;
msg->in_class_id = 0;
msg->class_id = MAINHEADER_MSG;
assert(target->csn >= 0);
msg->csn = (Byte8_t)target->csn;
msg->bin_offset = 0;
msg->length = codeidx->mhead_length;
msg->aux = 0; /* non exist*/
msg->res_offset = codeidx->offset;
msg->phld = NULL;
msg->next = NULL;
enqueue_message(msg, msgqueue);
cachemodel->mhead_model = OPJ_TRUE;
}
void enqueue_tileheader(int tile_id, msgqueue_param_t *msgqueue)
{
cachemodel_param_t *cachemodel;
target_param_t *target;
index_param_t *codeidx;
message_param_t *msg;
cachemodel = msgqueue->cachemodel;
target = cachemodel->target;
codeidx = target->codeidx;
if (!cachemodel->th_model[ tile_id]) {
msg = (message_param_t *)opj_malloc(sizeof(message_param_t));
msg->last_byte = OPJ_TRUE;
assert(tile_id >= 0);
msg->in_class_id = (Byte8_t)tile_id;
msg->class_id = TILE_HEADER_MSG;
assert(target->csn >= 0);
msg->csn = (Byte8_t)target->csn;
msg->bin_offset = 0;
msg->length = codeidx->tileheader[tile_id]->tlen -
2; /* SOT marker segment is removed*/
msg->aux = 0; /* non exist*/
msg->res_offset = codeidx->offset + (OPJ_OFF_T)get_elemOff(codeidx->tilepart, 0,
(Byte8_t)tile_id) + 2; /* skip SOT marker seg*/
msg->phld = NULL;
msg->next = NULL;
enqueue_message(msg, msgqueue);
cachemodel->th_model[ tile_id] = OPJ_TRUE;
}
}
void enqueue_tile(Byte4_t tile_id, int level, msgqueue_param_t *msgqueue)
{
cachemodel_param_t *cachemodel;
target_param_t *target;
OPJ_BOOL *tp_model;
Byte8_t numOftparts; /* num of tile parts par tile*/
Byte8_t numOftiles;
index_param_t *codeidx;
faixbox_param_t *tilepart;
message_param_t *msg;
Byte8_t binOffset, binLength, class_id;
Byte8_t i;
cachemodel = msgqueue->cachemodel;
target = cachemodel->target;
codeidx = target->codeidx;
tilepart = codeidx->tilepart;
numOftparts = get_nmax(tilepart);
numOftiles = get_m(tilepart);
class_id = (numOftparts == 1) ? TILE_MSG : EXT_TILE_MSG;
if (/*tile_id < 0 ||*/ numOftiles <= (Byte8_t)tile_id) {
fprintf(FCGI_stderr, "Error, Invalid tile-id %d\n", tile_id);
return;
}
tp_model = &cachemodel->tp_model[ tile_id * numOftparts];
binOffset = 0;
for (i = 0; i < numOftparts - (Byte8_t)level; i++) {
binLength = get_elemLen(tilepart, i, tile_id);
if (!tp_model[i]) {
msg = (message_param_t *)opj_malloc(sizeof(message_param_t));
msg->last_byte = (i == numOftparts - 1);
msg->in_class_id = tile_id;
msg->class_id = class_id;
assert(target->csn >= 0);
msg->csn = (Byte8_t)target->csn;
msg->bin_offset = binOffset;
msg->length = binLength;
msg->aux = numOftparts - i;
msg->res_offset = codeidx->offset + (OPJ_OFF_T)get_elemOff(tilepart, i,
tile_id)/*-1*/;
msg->phld = NULL;
msg->next = NULL;
enqueue_message(msg, msgqueue);
tp_model[i] = OPJ_TRUE;
}
binOffset += binLength;
}
}
void enqueue_precinct(int seq_id, int tile_id, int comp_id, int layers,
msgqueue_param_t *msgqueue)
{
cachemodel_param_t *cachemodel;
index_param_t *codeidx;
faixbox_param_t *precpacket;
message_param_t *msg;
Byte8_t nmax, binOffset, binLength;
int layer_id, numOflayers;
cachemodel = msgqueue->cachemodel;
codeidx = cachemodel->target->codeidx;
precpacket = codeidx->precpacket[ comp_id];
numOflayers = codeidx->COD.numOflayers;
nmax = get_nmax(precpacket);
assert(nmax < INT_MAX);
if (layers < 0) {
layers = numOflayers;
}
assert(tile_id >= 0);
binOffset = 0;
for (layer_id = 0; layer_id < layers; layer_id++) {
binLength = get_elemLen(precpacket, (Byte8_t)(seq_id * numOflayers + layer_id),
(Byte8_t)tile_id);
if (!cachemodel->pp_model[comp_id][tile_id * (int)nmax + seq_id * numOflayers +
layer_id]) {
msg = (message_param_t *)opj_malloc(sizeof(message_param_t));
msg->last_byte = (layer_id == (numOflayers - 1));
msg->in_class_id = comp_precinct_id(tile_id, comp_id, seq_id, codeidx->SIZ.Csiz,
(int)codeidx->SIZ.XTnum * (int) codeidx->SIZ.YTnum);
msg->class_id = PRECINCT_MSG;
msg->csn = (Byte8_t)cachemodel->target->csn;
msg->bin_offset = binOffset;
msg->length = binLength;
msg->aux = 0;
msg->res_offset = codeidx->offset + (OPJ_OFF_T)get_elemOff(precpacket,
(Byte8_t)(seq_id * numOflayers + layer_id), (Byte8_t)tile_id);
msg->phld = NULL;
msg->next = NULL;
enqueue_message(msg, msgqueue);
cachemodel->pp_model[comp_id][tile_id * (int)nmax + seq_id * numOflayers +
layer_id] = OPJ_TRUE;
}
binOffset += binLength;
}
}
/* MM FIXME: each params is coded on int, this is really not clear from the specs what it should be */
Byte8_t comp_precinct_id(int t, int c, int s, int num_components, int num_tiles)
{
return (Byte8_t)(t + (c + s * num_components) * num_tiles);
}
void enqueue_box(Byte8_t meta_id, boxlist_param_t *boxlist,
msgqueue_param_t *msgqueue, Byte8_t *binOffset);
void enqueue_phld(Byte8_t meta_id, placeholderlist_param_t *phldlist,
msgqueue_param_t *msgqueue, Byte8_t *binOffset);
void enqueue_boxcontents(Byte8_t meta_id, boxcontents_param_t *boxcontents,
msgqueue_param_t *msgqueue, Byte8_t *binOffset);
void enqueue_metadata(Byte8_t meta_id, msgqueue_param_t *msgqueue)
{
metadatalist_param_t *metadatalist;
metadata_param_t *metadata;
Byte8_t binOffset;
metadatalist = msgqueue->cachemodel->target->codeidx->metadatalist;
metadata = search_metadata(meta_id, metadatalist);
if (!metadata) {
fprintf(FCGI_stderr, "Error: metadata-bin %" PRIu64 " not found\n", meta_id);
return;
}
binOffset = 0;
if (metadata->boxlist) {
enqueue_box(meta_id, metadata->boxlist, msgqueue, &binOffset);
}
if (metadata->placeholderlist) {
enqueue_phld(meta_id, metadata->placeholderlist, msgqueue, &binOffset);
}
if (metadata->boxcontents) {
enqueue_boxcontents(meta_id, metadata->boxcontents, msgqueue, &binOffset);
}
msgqueue->last->last_byte = OPJ_TRUE;
}
message_param_t * gene_metamsg(Byte8_t meta_id, Byte8_t binoffset,
Byte8_t length, OPJ_OFF_T res_offset, placeholder_param_t *phld, Byte8_t csn);
void enqueue_box(Byte8_t meta_id, boxlist_param_t *boxlist,
msgqueue_param_t *msgqueue, Byte8_t *binOffset)
{
box_param_t *box;
message_param_t *msg;
box = boxlist->first;
assert(msgqueue->cachemodel->target->csn >= 0);
while (box) {
msg = gene_metamsg(meta_id, *binOffset, box->length, box->offset, NULL,
(Byte8_t)msgqueue->cachemodel->target->csn);
enqueue_message(msg, msgqueue);
*binOffset += box->length;
box = box->next;
}
}
void enqueue_phld(Byte8_t meta_id, placeholderlist_param_t *phldlist,
msgqueue_param_t *msgqueue, Byte8_t *binOffset)
{
placeholder_param_t *phld;
message_param_t *msg;
phld = phldlist->first;
assert(msgqueue->cachemodel->target->csn >= 0);
while (phld) {
msg = gene_metamsg(meta_id, *binOffset, phld->LBox, 0, phld,
(Byte8_t)msgqueue->cachemodel->target->csn);
enqueue_message(msg, msgqueue);
*binOffset += phld->LBox;
phld = phld->next;
}
}
void enqueue_boxcontents(Byte8_t meta_id, boxcontents_param_t *boxcontents,
msgqueue_param_t *msgqueue, Byte8_t *binOffset)
{
message_param_t *msg;
assert(msgqueue->cachemodel->target->csn >= 0);
msg = gene_metamsg(meta_id, *binOffset, boxcontents->length,
boxcontents->offset, NULL, (Byte8_t)msgqueue->cachemodel->target->csn);
enqueue_message(msg, msgqueue);
*binOffset += boxcontents->length;
}
message_param_t * gene_metamsg(Byte8_t meta_id, Byte8_t binOffset,
Byte8_t length, OPJ_OFF_T res_offset, placeholder_param_t *phld, Byte8_t csn)
{
message_param_t *msg;
msg = (message_param_t *)opj_malloc(sizeof(message_param_t));
msg->last_byte = OPJ_FALSE;
msg->in_class_id = meta_id;
msg->class_id = METADATA_MSG;
msg->csn = csn;
msg->bin_offset = binOffset;
msg->length = length;
msg->aux = 0; /* non exist*/
msg->res_offset = res_offset;
msg->phld = phld;
msg->next = NULL;
return msg;
}
void enqueue_message(message_param_t *msg, msgqueue_param_t *msgqueue)
{
if (msgqueue->first) {
msgqueue->last->next = msg;
} else {
msgqueue->first = msg;
}
msgqueue->last = msg;
}
void add_bin_id_vbas_stream(Byte_t bb, Byte_t c, Byte8_t in_class_id,
int tmpfd);
void add_vbas_stream(Byte8_t code, int tmpfd);
void add_body_stream(message_param_t *msg, int fd, int tmpfd);
void add_placeholder_stream(placeholder_param_t *phld, int tmpfd);
void recons_stream_from_msgqueue(msgqueue_param_t *msgqueue, int tmpfd)
{
message_param_t *msg;
Byte8_t class_id, csn;
Byte_t bb, c;
if (!(msgqueue)) {
return;
}
msg = msgqueue->first;
class_id = (Byte8_t) - 1;
csn = (Byte8_t) - 1;
while (msg) {
if (msg->csn == csn) {
if (msg->class_id == class_id) {
bb = 1;
} else {
bb = 2;
class_id = msg->class_id;
}
} else {
bb = 3;
class_id = msg->class_id;
csn = msg->csn;
}
c = msg->last_byte ? 1 : 0;
add_bin_id_vbas_stream(bb, c, msg->in_class_id, tmpfd);
if (bb >= 2) {
add_vbas_stream(class_id, tmpfd);
}
if (bb == 3) {
add_vbas_stream(csn, tmpfd);
}
add_vbas_stream(msg->bin_offset, tmpfd);
add_vbas_stream(msg->length, tmpfd);
if (msg->class_id % 2) { /* Aux is present only if the id is odd*/
add_vbas_stream(msg->aux, tmpfd);
}
if (msg->phld) {
add_placeholder_stream(msg->phld, tmpfd);
} else {
add_body_stream(msg, msgqueue->cachemodel->target->fd, tmpfd);
}
msg = msg->next;
}
}
void add_vbas_with_bytelen_stream(Byte8_t code, int bytelength, int tmpfd);
void print_binarycode(Byte8_t n, int segmentlen);
void add_bin_id_vbas_stream(Byte_t bb, Byte_t c, Byte8_t in_class_id, int tmpfd)
{
int bytelength;
Byte8_t tmp;
/* A.2.3 In-class identifiers */
/* 7k-3bits, where k is the number of bytes in the VBAS*/
bytelength = 1;
tmp = in_class_id >> 4;
while (tmp) {
bytelength ++;
tmp >>= 7;
}
in_class_id |= (Byte8_t)((((bb & 3) << 5) | (c & 1) << 4) << ((
bytelength - 1) * 7));
add_vbas_with_bytelen_stream(in_class_id, bytelength, tmpfd);
}
void add_vbas_stream(Byte8_t code, int tmpfd)
{
int bytelength;
Byte8_t tmp;
bytelength = 1;
tmp = code;
while (tmp >>= 7) {
bytelength ++;
}
add_vbas_with_bytelen_stream(code, bytelength, tmpfd);
}
void add_vbas_with_bytelen_stream(Byte8_t code, int bytelength, int tmpfd)
{
int n;
Byte8_t seg;
n = bytelength - 1;
while (n >= 0) {
seg = (code >> (n * 7)) & 0x7f;
if (n) {
seg |= 0x80;
}
if (write(tmpfd, (Byte4_t *)&seg, 1) != 1) {
fprintf(FCGI_stderr, "Error: failed to write vbas\n");
return;
}
n--;
}
}
void add_body_stream(message_param_t *msg, int fd, int tmpfd)
{
Byte_t *data;
if (!(data = fetch_bytes(fd, msg->res_offset, msg->length))) {
fprintf(FCGI_stderr, "Error: fetch_bytes in add_body_stream()\n");
return;
}
if (write(tmpfd, data, msg->length) < 1) {
opj_free(data);
fprintf(FCGI_stderr, "Error: fwrite in add_body_stream()\n");
return;
}
opj_free(data);
}
void add_bigendian_bytestream(Byte8_t code, int bytelength, int tmpfd);
void add_placeholder_stream(placeholder_param_t *phld, int tmpfd)
{
add_bigendian_bytestream(phld->LBox, 4, tmpfd);
if (write(tmpfd, phld->TBox, 4) < 1) {
fprintf(FCGI_stderr, "Error: fwrite in add_placeholder_stream()\n");
return;
}
add_bigendian_bytestream(phld->Flags, 4, tmpfd);
add_bigendian_bytestream(phld->OrigID, 8, tmpfd);
if (write(tmpfd, phld->OrigBH, phld->OrigBHlen) < 1) {
fprintf(FCGI_stderr, "Error: fwrite in add_placeholder_stream()\n");
return;
}
}
void add_bigendian_bytestream(Byte8_t code, int bytelength, int tmpfd)
{
int n;
Byte8_t seg;
n = bytelength - 1;
while (n >= 0) {
seg = (code >> (n * 8)) & 0xff;
if (write(tmpfd, (Byte4_t *)&seg, 1) != 1) {
fprintf(FCGI_stderr, "ERROR: failed to write bigendian_bytestream\n");
return;
}
n--;
}
}
void print_binarycode(Byte8_t n, int segmentlen)
{
char buf[256];
int i = 0, j, k;
do {
buf[i++] = n % 2 ? '1' : '0';
} while ((n = n / 2));
for (j = segmentlen - 1; j >= i; j--) {
putchar('0');
}
for (j = i - 1, k = 0; j >= 0; j--, k++) {
putchar(buf[j]);
if (!((k + 1) % segmentlen)) {
printf(" ");
}
}
printf("\n");
}
Byte_t * parse_bin_id_vbas(Byte_t *streamptr, Byte_t *bb, Byte_t *c,
Byte8_t *in_class_id);
Byte_t * parse_vbas(Byte_t *streamptr, Byte8_t *elem);
void parse_JPIPstream(Byte_t *JPIPstream, Byte8_t streamlen, OPJ_OFF_T offset,
msgqueue_param_t *msgqueue)
{
Byte_t *ptr; /* stream pointer*/
message_param_t *msg;
Byte_t bb, c;
Byte8_t class_id, csn;
class_id = (Byte8_t) - 1; /* dummy*/
csn = (Byte8_t) - 1;
ptr = JPIPstream;
while ((Byte8_t)(ptr - JPIPstream) < streamlen) {
msg = (message_param_t *)opj_malloc(sizeof(message_param_t));
ptr = parse_bin_id_vbas(ptr, &bb, &c, &msg->in_class_id);
msg->last_byte = c == 1 ? OPJ_TRUE : OPJ_FALSE;
if (bb >= 2) {
ptr = parse_vbas(ptr, &class_id);
}
msg->class_id = class_id;
if (bb == 3) {
ptr = parse_vbas(ptr, &csn);
}
msg->csn = csn;
ptr = parse_vbas(ptr, &msg->bin_offset);
ptr = parse_vbas(ptr, &msg->length);
if (msg->class_id % 2) { /* Aux is present only if the id is odd*/
ptr = parse_vbas(ptr, &msg->aux);
} else {
msg->aux = 0;
}
msg->res_offset = ptr - JPIPstream + offset;
msg->phld = NULL;
msg->next = NULL;
if (msgqueue->first) {
msgqueue->last->next = msg;
} else {
msgqueue->first = msg;
}
msgqueue->last = msg;
ptr += msg->length;
}
}
void parse_metadata(metadata_param_t *metadata, message_param_t *msg,
Byte_t *stream);
void parse_metamsg(msgqueue_param_t *msgqueue, Byte_t *stream,
Byte8_t streamlen, metadatalist_param_t *metadatalist)
{
message_param_t *msg;
(void)streamlen;
if (metadatalist == NULL) {
return;
}
msg = msgqueue->first;
while (msg) {
if (msg->class_id == METADATA_MSG) {
metadata_param_t *metadata = gene_metadata(msg->in_class_id, NULL, NULL, NULL);
insert_metadata_into_list(metadata, metadatalist);
parse_metadata(metadata, msg, stream + msg->res_offset);
}
msg = msg->next;
}
}
placeholder_param_t * parse_phld(Byte_t *datastream, Byte8_t metalength);
void parse_metadata(metadata_param_t *metadata, message_param_t *msg,
Byte_t *datastream)
{
box_param_t *box;
placeholder_param_t *phld;
char *boxtype = (char *)(datastream + 4);
msg->phld = NULL;
if (strncmp(boxtype, "phld", 4) == 0) {
if (!metadata->placeholderlist) {
metadata->placeholderlist = gene_placeholderlist();
}
phld = parse_phld(datastream, msg->length);
msg->phld = phld;
insert_placeholder_into_list(phld, metadata->placeholderlist);
} else if (isalpha(boxtype[0]) && isalpha(boxtype[1]) &&
(isalnum(boxtype[2]) || isspace(boxtype[2])) &&
(isalpha(boxtype[3]) || isspace(boxtype[3]))) {
if (!metadata->boxlist) {
metadata->boxlist = gene_boxlist();
}
box = gene_boxbyOffinStream(datastream, msg->res_offset);
insert_box_into_list(box, metadata->boxlist);
} else {
metadata->boxcontents = gene_boxcontents(msg->res_offset, msg->length);
}
}
placeholder_param_t * parse_phld(Byte_t *datastream, Byte8_t metalength)
{
placeholder_param_t *phld;
phld = (placeholder_param_t *)opj_malloc(sizeof(placeholder_param_t));
phld->LBox = big4(datastream);
strncpy(phld->TBox, "phld", 4);
phld->Flags = big4(datastream + 8);
phld->OrigID = big8(datastream + 12);
phld->OrigBHlen = (Byte_t)(metalength - 20);
phld->OrigBH = (Byte_t *)opj_malloc(phld->OrigBHlen);
memcpy(phld->OrigBH, datastream + 20, phld->OrigBHlen);
phld->next = NULL;
return phld;
}
Byte_t * parse_bin_id_vbas(Byte_t *streamptr, Byte_t *bb, Byte_t *c,
Byte8_t *in_class_id)
{
Byte_t code;
Byte_t *ptr;
ptr = streamptr;
code = *(ptr++);
*bb = (code >> 5) & 3;
*c = (code >> 4) & 1;
*in_class_id = code & 15;
while (code >> 7) {
code = *(ptr++);
*in_class_id = (*in_class_id << 7) | (code & 0x7f);
}
return ptr;
}
Byte_t * parse_vbas(Byte_t *streamptr, Byte8_t *elem)
{
Byte_t code;
Byte_t *ptr;
*elem = 0;
ptr = streamptr;
do {
code = *(ptr++);
*elem = (*elem << 7) | (code & 0x7f);
} while (code >> 7);
return ptr;
}
void delete_message_in_msgqueue(message_param_t **msg,
msgqueue_param_t *msgqueue)
{
message_param_t *ptr;
if (!(*msg)) {
return;
}
if (*msg == msgqueue->first) {
msgqueue->first = (*msg)->next;
} else {
ptr = msgqueue->first;
while (ptr->next != *msg) {
ptr = ptr->next;
}
ptr->next = (*msg)->next;
if (*msg == msgqueue->last) {
msgqueue->last = ptr;
}
}
opj_free(*msg);
}
Reference in New Issue View Git Blame Copy Permalink