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Refactor opj_read_ppm 

Update uclouvain/openjpeg#470
Update uclouvain/openjpeg#288
This commit is contained in:
mayeut 2015-07-12 18:09:30 +02:00
parent d1b053afe2
commit c887df12a3
2 changed files with 289 additions and 431 deletions
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531
src/lib/openjp2/j2k.c
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@ -718,29 +718,29 @@ static OPJ_BOOL opj_j2k_read_plt ( opj_j2k_t *p_j2k,
OPJ_UINT32 p_header_size,
opj_event_mgr_t * p_manager );
#if 0
/**
* Reads a PPM marker (Packed packet headers, main header)
* Reads a PPM marker (Packed headers, main header)
*
* @param p_header_data the data contained in the POC box.
* @param p_j2k the jpeg2000 codec.
* @param p_header_size the size of the data contained in the POC marker.
* @param p_manager the user event manager.
*/
static OPJ_BOOL j2k_read_ppm_v2 (
opj_j2k_t *p_j2k,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
struct opj_event_mgr * p_manager
);
#endif
static OPJ_BOOL j2k_read_ppm_v3 (
static OPJ_BOOL opj_j2k_read_ppm (
opj_j2k_t *p_j2k,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
opj_event_mgr_t * p_manager );
/**
* Merges all PPM markers read (Packed headers, main header)
*
* @param p_cp main coding parameters.
* @param p_manager the user event manager.
*/
static OPJ_BOOL opj_j2k_merge_ppm ( opj_cp_t *p_cp, opj_event_mgr_t * p_manager );
/**
* Reads a PPT marker (Packed packet headers, tile-part header)
*
@ -755,7 +755,7 @@ static OPJ_BOOL opj_j2k_read_ppt ( opj_j2k_t *p_j2k,
opj_event_mgr_t * p_manager );
/**
* Merges all PPT markers read (Packed packet headers, tile-part header)
* Merges all PPT markers read (Packed headers, tile-part header)
*
* @param p_tcp the tile.
* @param p_manager the user event manager.
@ -1305,7 +1305,7 @@ const opj_dec_memory_marker_handler_t j2k_memory_marker_handler_tab [] =
{J2K_MS_TLM, J2K_STATE_MH, opj_j2k_read_tlm},
{J2K_MS_PLM, J2K_STATE_MH, opj_j2k_read_plm},
{J2K_MS_PLT, J2K_STATE_TPH, opj_j2k_read_plt},
{J2K_MS_PPM, J2K_STATE_MH, j2k_read_ppm_v3},
{J2K_MS_PPM, J2K_STATE_MH, opj_j2k_read_ppm},
{J2K_MS_PPT, J2K_STATE_TPH, opj_j2k_read_ppt},
{J2K_MS_SOP, 0, 0},
{J2K_MS_CRG, J2K_STATE_MH, opj_j2k_read_crg},
@ -3495,24 +3495,31 @@ static OPJ_BOOL opj_j2k_read_plt ( opj_j2k_t *p_j2k,
return OPJ_TRUE;
}
#if 0
OPJ_BOOL j2k_read_ppm_v2 (
/**
* Reads a PPM marker (Packed packet headers, main header)
*
* @param p_header_data the data contained in the POC box.
* @param p_j2k the jpeg2000 codec.
* @param p_header_size the size of the data contained in the POC marker.
* @param p_manager the user event manager.
*/
static OPJ_BOOL opj_j2k_read_ppm (
opj_j2k_t *p_j2k,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
struct opj_event_mgr * p_manager
)
opj_event_mgr_t * p_manager )
{
opj_cp_t *l_cp = 00;
OPJ_UINT32 l_remaining_data, l_Z_ppm, l_N_ppm;
OPJ_UINT32 l_Z_ppm;
/* preconditions */
assert(p_header_data != 00);
assert(p_j2k != 00);
assert(p_manager != 00);
if (p_header_size < 1) {
/* We need to have the Z_ppm element + 1 byte of Nppm/Ippm at minimum */
if (p_header_size < 2) {
opj_event_msg(p_manager, EVT_ERROR, "Error reading PPM marker\n");
return OPJ_FALSE;
}
@ -3524,352 +3531,183 @@ OPJ_BOOL j2k_read_ppm_v2 (
++p_header_data;
--p_header_size;
/* First PPM marker */
if (l_Z_ppm == 0) {
if (p_header_size < 4) {
opj_event_msg(p_manager, EVT_ERROR, "Error reading PPM marker\n");
/* check allocation needed */
if (l_cp->ppm_markers == NULL) { /* first PPM marker */
OPJ_UINT32 l_newCount = l_Z_ppm + 1U; /* can't overflow, l_Z_ppm is UINT8 */
assert(l_cp->ppm_markers_count == 0U);
l_cp->ppm_markers = (opj_ppx *) opj_calloc(l_newCount, sizeof(opj_ppx));
if (l_cp->ppm_markers == NULL) {
opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to read PPM marker\n");
return OPJ_FALSE;
}
l_cp->ppm_markers_count = l_newCount;
} else if (l_cp->ppm_markers_count <= l_Z_ppm) {
OPJ_UINT32 l_newCount = l_Z_ppm + 1U; /* can't overflow, l_Z_ppm is UINT8 */
opj_ppx *new_ppm_markers;
new_ppm_markers = (opj_ppx *) opj_realloc(l_cp->ppm_markers, l_newCount * sizeof(opj_ppx));
if (new_ppm_markers == NULL) {
/* clean up to be done on l_cp destruction */
opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to read PPM marker\n");
return OPJ_FALSE;
}
l_cp->ppm_markers = new_ppm_markers;
memset(l_cp->ppm_markers + l_cp->ppm_markers_count, 0, (l_newCount - l_cp->ppm_markers_count) * sizeof(opj_ppx));
l_cp->ppm_markers_count = l_newCount;
}
if (l_cp->ppm_markers[l_Z_ppm].m_data != NULL) {
/* clean up to be done on l_cp destruction */
opj_event_msg(p_manager, EVT_ERROR, "Zppm %u already read\n", l_Z_ppm);
return OPJ_FALSE;
}
opj_read_bytes(p_header_data,&l_N_ppm,4); /* N_ppm */
p_header_data+=4;
p_header_size-=4;
/* First PPM marker: Initialization */
l_cp->ppm_len = l_N_ppm;
l_cp->ppm_data_size = 0;
l_cp->ppm_buffer = (OPJ_BYTE *) opj_malloc(l_cp->ppm_len);
if (l_cp->ppm_buffer == 00) {
opj_event_msg(p_manager, EVT_ERROR, "Not enough memory reading ppm marker\n");
l_cp->ppm_markers[l_Z_ppm].m_data = opj_malloc(p_header_size);
if (l_cp->ppm_markers[l_Z_ppm].m_data == NULL) {
/* clean up to be done on l_cp destruction */
opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to read PPM marker\n");
return OPJ_FALSE;
}
memset(l_cp->ppm_buffer,0,l_cp->ppm_len);
l_cp->ppm_data = l_cp->ppm_buffer;
}
while (1) {
if (l_cp->ppm_data_size == l_cp->ppm_len) {
if (p_header_size >= 4) {
/* read a N_ppm */
opj_read_bytes(p_header_data,&l_N_ppm,4); /* N_ppm */
p_header_data+=4;
p_header_size-=4;
l_cp->ppm_len += l_N_ppm ;
OPJ_BYTE *new_ppm_buffer = (OPJ_BYTE *) opj_realloc(l_cp->ppm_buffer, l_cp->ppm_len);
if (! new_ppm_buffer) {
opj_free(l_cp->ppm_buffer);
l_cp->ppm_buffer = NULL;
l_cp->ppm_len = 0;
l_cp->ppm_data = NULL;
opj_event_msg(p_manager, EVT_ERROR, "Not enough memory reading ppm marker\n");
return OPJ_FALSE;
}
l_cp->ppm_buffer = new_ppm_buffer;
memset(l_cp->ppm_buffer+l_cp->ppm_data_size,0,l_N_ppm);
l_cp->ppm_data = l_cp->ppm_buffer;
}
else {
return OPJ_FALSE;
}
}
l_remaining_data = l_cp->ppm_len - l_cp->ppm_data_size;
if (l_remaining_data <= p_header_size) {
/* we must store less information than available in the packet */
memcpy(l_cp->ppm_buffer + l_cp->ppm_data_size , p_header_data , l_remaining_data);
l_cp->ppm_data_size = l_cp->ppm_len;
p_header_size -= l_remaining_data;
p_header_data += l_remaining_data;
}
else {
memcpy(l_cp->ppm_buffer + l_cp->ppm_data_size , p_header_data , p_header_size);
l_cp->ppm_data_size += p_header_size;
p_header_data += p_header_size;
p_header_size = 0;
break;
}
}
l_cp->ppm_markers[l_Z_ppm].m_data_size = p_header_size;
memcpy(l_cp->ppm_markers[l_Z_ppm].m_data, p_header_data, p_header_size);
return OPJ_TRUE;
}
#endif
OPJ_BOOL j2k_read_ppm_v3 (
opj_j2k_t *p_j2k,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
struct opj_event_mgr * p_manager
)
/**
* Merges all PPM markers read (Packed headers, main header)
*
* @param p_cp main coding parameters.
* @param p_manager the user event manager.
*/
static OPJ_BOOL opj_j2k_merge_ppm ( opj_cp_t *p_cp, opj_event_mgr_t * p_manager )
{
opj_cp_t *l_cp = 00;
OPJ_UINT32 l_remaining_data, l_Z_ppm, l_N_ppm;
OPJ_UINT32 i, l_ppm_data_size, l_N_ppm_remaining;
/* preconditions */
assert(p_header_data != 00);
assert(p_j2k != 00);
assert(p_cp != 00);
assert(p_manager != 00);
assert(p_cp->ppm_buffer == NULL);
/* Minimum size of PPM marker is equal to the size of Zppm element */
if (p_header_size < 1) {
opj_event_msg(p_manager, EVT_ERROR, "Error reading PPM marker\n");
return OPJ_FALSE;
}
l_cp = &(p_j2k->m_cp);
l_cp->ppm = 1;
opj_read_bytes(p_header_data,&l_Z_ppm,1); /* Z_ppm */
++p_header_data;
--p_header_size;
/* First PPM marker */
if (l_Z_ppm == 0) {
if (l_cp->ppm_data != NULL) {
opj_event_msg(p_manager, EVT_ERROR, "Zppm O already processed. Found twice.\n");
opj_free(l_cp->ppm_data);
l_cp->ppm_data = NULL;
l_cp->ppm_buffer = NULL;
l_cp->ppm = 0; /* do not use PPM */
return OPJ_FALSE;
}
/* We need now at least the Nppm^0 element */
if (p_header_size < 4) {
opj_event_msg(p_manager, EVT_ERROR, "Error reading PPM marker\n");
return OPJ_FALSE;
}
opj_read_bytes(p_header_data,&l_N_ppm,4); /* First N_ppm */
p_header_data+=4;
p_header_size-=4;
/* sanity check: how much bytes is left for Ippm */
if( p_header_size < l_N_ppm )
{
opj_event_msg(p_manager, EVT_ERROR, "Not enough bytes (%u) to hold Ippm series (%u), Index (%d)\n", p_header_size, l_N_ppm, l_Z_ppm );
opj_free(l_cp->ppm_data);
l_cp->ppm_data = NULL;
l_cp->ppm_buffer = NULL;
l_cp->ppm = 0; /* do not use PPM */
return OPJ_FALSE;
}
/* First PPM marker: Initialization */
l_cp->ppm_len = l_N_ppm;
l_cp->ppm_data_read = 0;
l_cp->ppm_data = (OPJ_BYTE *) opj_calloc(1,l_cp->ppm_len);
l_cp->ppm_buffer = l_cp->ppm_data;
if (l_cp->ppm_data == 00) {
opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to read ppm marker\n");
return OPJ_FALSE;
}
l_cp->ppm_data_current = l_cp->ppm_data;
/*l_cp->ppm_data = l_cp->ppm_buffer;*/
}
else {
if (p_header_size < 4) {
opj_event_msg(p_manager, EVT_WARNING, "Empty PPM marker\n");
if (p_cp->ppm == 0U) {
return OPJ_TRUE;
}
else {
/* Uncompleted Ippm series in the previous PPM marker?*/
if (l_cp->ppm_data_read < l_cp->ppm_len) {
/* Get the place where add the remaining Ippm series*/
l_cp->ppm_data_current = &(l_cp->ppm_data[l_cp->ppm_data_read]);
l_N_ppm = l_cp->ppm_len - l_cp->ppm_data_read;
}
else {
OPJ_BYTE *new_ppm_data;
opj_read_bytes(p_header_data,&l_N_ppm,4); /* First N_ppm */
p_header_data+=4;
p_header_size-=4;
/* sanity check: how much bytes is left for Ippm */
if( p_header_size < l_N_ppm )
l_ppm_data_size = 0U;
l_N_ppm_remaining = 0U;
for (i = 0U; i < p_cp->ppm_markers_count; ++i) {
if (p_cp->ppm_markers[i].m_data != NULL) { /* standard doesn't seem to require contiguous Zppm */
OPJ_UINT32 l_N_ppm;
OPJ_UINT32 l_data_size = p_cp->ppm_markers[i].m_data_size;
const OPJ_BYTE* l_data = p_cp->ppm_markers[i].m_data;
if (l_N_ppm_remaining >= l_data_size) {
l_N_ppm_remaining -= l_data_size;
l_data_size = 0U;
} else {
l_data += l_N_ppm_remaining;
l_data_size -= l_N_ppm_remaining;
l_N_ppm_remaining = 0U;
}
if (l_data_size > 0U) {
do
{
opj_event_msg(p_manager, EVT_ERROR, "Not enough bytes (%u) to hold Ippm series (%u), Index (%d)\n", p_header_size, l_N_ppm, l_Z_ppm );
opj_free(l_cp->ppm_data);
l_cp->ppm_data = NULL;
l_cp->ppm_buffer = NULL;
l_cp->ppm = 0; /* do not use PPM */
/* read Nppm */
if (l_data_size < 4U) {
/* clean up to be done on l_cp destruction */
opj_event_msg(p_manager, EVT_ERROR, "Not enough bytes to read Nppm\n");
return OPJ_FALSE;
}
/* Increase the size of ppm_data to add the new Ippm series*/
assert(l_cp->ppm_data == l_cp->ppm_buffer && "We need ppm_data and ppm_buffer to be the same when reallocating");
new_ppm_data = (OPJ_BYTE *) opj_realloc(l_cp->ppm_data, l_cp->ppm_len + l_N_ppm);
if (! new_ppm_data) {
opj_free(l_cp->ppm_data);
l_cp->ppm_data = NULL;
l_cp->ppm_buffer = NULL; /* TODO: no need for a new local variable: ppm_buffer and ppm_data are enough */
l_cp->ppm_len = 0;
opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to increase the size of ppm_data to add the new Ippm series\n");
opj_read_bytes(l_data, &l_N_ppm, 4);
l_data+=4;
l_data_size-=4;
l_ppm_data_size += l_N_ppm; /* can't overflow, max 256 markers of max 65536 bytes, that is when PPM markers are not corrupted which is checked elsewhere */
if (l_data_size >= l_N_ppm) {
l_data_size -= l_N_ppm;
l_data += l_N_ppm;
} else {
l_N_ppm_remaining = l_N_ppm - l_data_size;
l_data_size = 0U;
}
} while (l_data_size > 0U);
}
}
}
if (l_N_ppm_remaining != 0U) {
/* clean up to be done on l_cp destruction */
opj_event_msg(p_manager, EVT_ERROR, "Corrupted PPM markers\n");
return OPJ_FALSE;
}
l_cp->ppm_data = new_ppm_data;
l_cp->ppm_buffer = l_cp->ppm_data;
/* Keep the position of the place where concatenate the new series*/
l_cp->ppm_data_current = &(l_cp->ppm_data[l_cp->ppm_len]);
l_cp->ppm_len += l_N_ppm;
}
p_cp->ppm_buffer = (OPJ_BYTE *) opj_malloc(l_ppm_data_size);
if (p_cp->ppm_buffer == 00) {
opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to read PPM marker\n");
return OPJ_FALSE;
}
p_cp->ppm_len = l_ppm_data_size;
l_ppm_data_size = 0U;
l_N_ppm_remaining = 0U;
for (i = 0U; i < p_cp->ppm_markers_count; ++i) {
if (p_cp->ppm_markers[i].m_data != NULL) { /* standard doesn't seem to require contiguous Zppm */
OPJ_UINT32 l_N_ppm;
OPJ_UINT32 l_data_size = p_cp->ppm_markers[i].m_data_size;
const OPJ_BYTE* l_data = p_cp->ppm_markers[i].m_data;
if (l_N_ppm_remaining >= l_data_size) {
memcpy(p_cp->ppm_buffer + l_ppm_data_size, l_data, l_data_size);
l_ppm_data_size += l_data_size;
l_N_ppm_remaining -= l_data_size;
l_data_size = 0U;
} else {
memcpy(p_cp->ppm_buffer + l_ppm_data_size, l_data, l_N_ppm_remaining);
l_ppm_data_size += l_N_ppm_remaining;
l_data += l_N_ppm_remaining;
l_data_size -= l_N_ppm_remaining;
l_N_ppm_remaining = 0U;
}
l_remaining_data = p_header_size;
while (l_remaining_data >= l_N_ppm) {
/* read a complete Ippm series*/
memcpy(l_cp->ppm_data_current, p_header_data, l_N_ppm);
p_header_size -= l_N_ppm;
p_header_data += l_N_ppm;
l_cp->ppm_data_read += l_N_ppm; /* Increase the number of data read*/
if (p_header_size)
if (l_data_size > 0U) {
do
{
if (p_header_size < 4) {
opj_free(l_cp->ppm_data);
l_cp->ppm_data = NULL;
l_cp->ppm_buffer = NULL; /* TODO: no need for a new local variable: ppm_buffer and ppm_data are enough */
l_cp->ppm_len = 0;
l_cp->ppm = 0;
opj_event_msg(p_manager, EVT_ERROR, "Error reading PPM marker\n");
/* read Nppm */
if (l_data_size < 4U) {
/* clean up to be done on l_cp destruction */
opj_event_msg(p_manager, EVT_ERROR, "Not enough bytes to read Nppm\n");
return OPJ_FALSE;
}
opj_read_bytes(p_header_data,&l_N_ppm,4); /* N_ppm^i */
p_header_data+=4;
p_header_size-=4;
opj_read_bytes(l_data, &l_N_ppm, 4);
l_data+=4;
l_data_size-=4;
if (l_data_size >= l_N_ppm) {
memcpy(p_cp->ppm_buffer + l_ppm_data_size, l_data, l_N_ppm);
l_ppm_data_size += l_N_ppm;
l_data_size -= l_N_ppm;
l_data += l_N_ppm;
} else {
memcpy(p_cp->ppm_buffer + l_ppm_data_size, l_data, l_data_size);
l_ppm_data_size += l_data_size;
l_N_ppm_remaining = l_N_ppm - l_data_size;
l_data_size = 0U;
}
else {
l_remaining_data = p_header_size;
break;
} while (l_data_size > 0U);
}
l_remaining_data = p_header_size;
/* Next Ippm series is a complete series ?*/
if (l_remaining_data >= l_N_ppm) {
OPJ_BYTE *new_ppm_data;
/* Increase the size of ppm_data to add the new Ippm series*/
assert(l_cp->ppm_data == l_cp->ppm_buffer && "We need ppm_data and ppm_buffer to be the same when reallocating");
/* Overflow check */
if ((l_cp->ppm_len + l_N_ppm) < l_N_ppm) {
opj_free(l_cp->ppm_data);
l_cp->ppm_data = NULL;
l_cp->ppm_buffer = NULL; /* TODO: no need for a new local variable: ppm_buffer and ppm_data are enough */
l_cp->ppm_len = 0;
opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to increase the size of ppm_data to add the new (complete) Ippm series\n");
return OPJ_FALSE;
}
new_ppm_data = (OPJ_BYTE *) opj_realloc(l_cp->ppm_data, l_cp->ppm_len + l_N_ppm);
if (! new_ppm_data) {
opj_free(l_cp->ppm_data);
l_cp->ppm_data = NULL;
l_cp->ppm_buffer = NULL; /* TODO: no need for a new local variable: ppm_buffer and ppm_data are enough */
l_cp->ppm_len = 0;
opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to increase the size of ppm_data to add the new (complete) Ippm series\n");
return OPJ_FALSE;
}
l_cp->ppm_data = new_ppm_data;
l_cp->ppm_buffer = l_cp->ppm_data;
/* Keep the position of the place where concatenate the new series */
l_cp->ppm_data_current = &(l_cp->ppm_data[l_cp->ppm_len]);
l_cp->ppm_len += l_N_ppm;
}
}
/* Need to read an incomplete Ippm series*/
if (l_remaining_data) {
OPJ_BYTE *new_ppm_data;
assert(l_cp->ppm_data == l_cp->ppm_buffer && "We need ppm_data and ppm_buffer to be the same when reallocating");
/* Overflow check */
if ((l_cp->ppm_len + l_N_ppm) < l_N_ppm) {
opj_free(l_cp->ppm_data);
l_cp->ppm_data = NULL;
l_cp->ppm_buffer = NULL; /* TODO: no need for a new local variable: ppm_buffer and ppm_data are enough */
l_cp->ppm_len = 0;
opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to increase the size of ppm_data to add the new (complete) Ippm series\n");
return OPJ_FALSE;
}
new_ppm_data = (OPJ_BYTE *) opj_realloc(l_cp->ppm_data, l_cp->ppm_len + l_N_ppm);
if (! new_ppm_data) {
opj_free(l_cp->ppm_data);
l_cp->ppm_data = NULL;
l_cp->ppm_buffer = NULL; /* TODO: no need for a new local variable: ppm_buffer and ppm_data are enough */
l_cp->ppm_len = 0;
opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to increase the size of ppm_data to add the new (incomplete) Ippm series\n");
return OPJ_FALSE;
}
l_cp->ppm_data = new_ppm_data;
l_cp->ppm_buffer = l_cp->ppm_data;
/* Keep the position of the place where concatenate the new series*/
l_cp->ppm_data_current = &(l_cp->ppm_data[l_cp->ppm_len]);
l_cp->ppm_len += l_N_ppm;
/* Read incomplete Ippm series*/
memcpy(l_cp->ppm_data_current, p_header_data, l_remaining_data);
p_header_size -= l_remaining_data;
p_header_data += l_remaining_data;
l_cp->ppm_data_read += l_remaining_data; /* Increase the number of data read*/
}
#ifdef CLEAN_MSD
if (l_cp->ppm_data_size == l_cp->ppm_len) {
if (p_header_size >= 4) {
/* read a N_ppm*/
opj_read_bytes(p_header_data,&l_N_ppm,4); /* N_ppm */
p_header_data+=4;
p_header_size-=4;
l_cp->ppm_len += l_N_ppm ;
OPJ_BYTE *new_ppm_buffer = (OPJ_BYTE *) opj_realloc(l_cp->ppm_buffer, l_cp->ppm_len);
if (! new_ppm_buffer) {
opj_free(l_cp->ppm_buffer);
l_cp->ppm_buffer = NULL;
l_cp->ppm_len = 0;
opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to read ppm marker\n");
return OPJ_FALSE;
}
l_cp->ppm_buffer = new_ppm_buffer;
memset(l_cp->ppm_buffer+l_cp->ppm_data_size,0,l_N_ppm);
l_cp->ppm_data = l_cp->ppm_buffer;
}
else {
return OPJ_FALSE;
opj_free(p_cp->ppm_markers[i].m_data);
p_cp->ppm_markers[i].m_data = NULL;
p_cp->ppm_markers[i].m_data_size = 0U;
}
}
l_remaining_data = l_cp->ppm_len - l_cp->ppm_data_size;
p_cp->ppm_data = p_cp->ppm_buffer;
p_cp->ppm_data_size = p_cp->ppm_len;
p_cp->ppm_markers_count = 0U;
opj_free(p_cp->ppm_markers);
p_cp->ppm_markers = NULL;
if (l_remaining_data <= p_header_size) {
/* we must store less information than available in the packet */
memcpy(l_cp->ppm_buffer + l_cp->ppm_data_size , p_header_data , l_remaining_data);
l_cp->ppm_data_size = l_cp->ppm_len;
p_header_size -= l_remaining_data;
p_header_data += l_remaining_data;
}
else {
memcpy(l_cp->ppm_buffer + l_cp->ppm_data_size , p_header_data , p_header_size);
l_cp->ppm_data_size += p_header_size;
p_header_data += p_header_size;
p_header_size = 0;
break;
}
}
#endif
return OPJ_TRUE;
}
@ -3920,7 +3758,7 @@ static OPJ_BOOL opj_j2k_read_ppt ( opj_j2k_t *p_j2k,
OPJ_UINT32 l_newCount = l_Z_ppt + 1U; /* can't overflow, l_Z_ppt is UINT8 */
assert(l_tcp->ppt_markers_count == 0U);
l_tcp->ppt_markers = (opj_ppt *) opj_calloc(l_newCount, sizeof(opj_ppt));
l_tcp->ppt_markers = (opj_ppx *) opj_calloc(l_newCount, sizeof(opj_ppx));
if (l_tcp->ppt_markers == NULL) {
opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to read PPT marker\n");
return OPJ_FALSE;
@ -3928,15 +3766,15 @@ static OPJ_BOOL opj_j2k_read_ppt ( opj_j2k_t *p_j2k,
l_tcp->ppt_markers_count = l_newCount;
} else if (l_tcp->ppt_markers_count <= l_Z_ppt) {
OPJ_UINT32 l_newCount = l_Z_ppt + 1U; /* can't overflow, l_Z_ppt is UINT8 */
opj_ppt *new_ppt_markers;
new_ppt_markers = (opj_ppt *) opj_realloc(l_tcp->ppt_markers, l_newCount * sizeof(opj_ppt));
opj_ppx *new_ppt_markers;
new_ppt_markers = (opj_ppx *) opj_realloc(l_tcp->ppt_markers, l_newCount * sizeof(opj_ppx));
if (new_ppt_markers == NULL) {
/* clean up to be done on l_tcp destruction */
opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to read PPT marker\n");
return OPJ_FALSE;
}
l_tcp->ppt_markers = new_ppt_markers;
memset(l_tcp->ppt_markers + l_tcp->ppt_markers_count, 0, (l_newCount - l_tcp->ppt_markers_count) * sizeof(opj_ppt));
memset(l_tcp->ppt_markers + l_tcp->ppt_markers_count, 0, (l_newCount - l_tcp->ppt_markers_count) * sizeof(opj_ppx));
l_tcp->ppt_markers_count = l_newCount;
}
@ -7390,6 +7228,11 @@ OPJ_BOOL opj_j2k_read_header_procedure( opj_j2k_t *p_j2k,
return OPJ_FALSE;
}
if (! opj_j2k_merge_ppm(&(p_j2k->m_cp), p_manager)) {
opj_event_msg(p_manager, EVT_ERROR, "Failed to merge PPM data\n");
return OPJ_FALSE;
}
opj_event_msg(p_manager, EVT_INFO, "Main header has been correctly decoded.\n");
/* Position of the last element if the main header */
@ -7785,6 +7628,17 @@ void opj_j2k_cp_destroy (opj_cp_t *p_cp)
opj_free(p_cp->tcps);
p_cp->tcps = 00;
}
if (p_cp->ppm_markers != 00) {
OPJ_UINT32 i;
for (i = 0U; i < p_cp->ppm_markers_count; ++i) {
if (p_cp->ppm_markers[i].m_data != NULL) {
opj_free(p_cp->ppm_markers[i].m_data);
}
}
p_cp->ppm_markers_count = 0U;
opj_free(p_cp->ppm_markers);
p_cp->ppm_markers = NULL;
}
opj_free(p_cp->ppm_buffer);
p_cp->ppm_buffer = 00;
p_cp->ppm_data = NULL; /* ppm_data belongs to the allocated buffer pointed by ppm_buffer */
@ -8135,6 +7989,10 @@ OPJ_BOOL opj_j2k_read_tile_header( opj_j2k_t * p_j2k,
}
}
if (! opj_j2k_merge_ppt(p_j2k->m_cp.tcps + p_j2k->m_current_tile_number, p_manager)) {
opj_event_msg(p_manager, EVT_ERROR, "Failed to merge PPT data\n");
return OPJ_FALSE;
}
/*FIXME ???*/
if (! opj_tcd_init_decode_tile(p_j2k->m_tcd, p_j2k->m_current_tile_number)) {
opj_event_msg(p_manager, EVT_ERROR, "Cannot decode tile, memory error\n");
@ -8185,11 +8043,6 @@ OPJ_BOOL opj_j2k_decode_tile ( opj_j2k_t * p_j2k,
return OPJ_FALSE;
}
if (! opj_j2k_merge_ppt(l_tcp, p_manager)) {
opj_j2k_tcp_destroy(l_tcp);
return OPJ_FALSE;
}
if (! opj_tcd_decode_tile( p_j2k->m_tcd,
l_tcp->m_data,
l_tcp->m_data_size,

15
src/lib/openjp2/j2k.h
View File

@ -232,11 +232,11 @@ typedef struct opj_simple_mcc_decorrelation_data
}
opj_simple_mcc_decorrelation_data_t;
typedef struct opj_ppt_struct
typedef struct opj_ppx_struct
{
OPJ_BYTE* m_data; /* m_data == NULL => Zppt not read yet */
OPJ_BYTE* m_data; /* m_data == NULL => Zppx not read yet */
OPJ_UINT32 m_data_size;
} opj_ppt;
} opj_ppx;
/**
Tile coding parameters :
@ -263,8 +263,8 @@ typedef struct opj_tcp
/** number of ppt markers (reserved size) */
OPJ_UINT32 ppt_markers_count;
/** ppt markers data (table indexed by Zppm) */
opj_ppt* ppt_markers;
/** ppt markers data (table indexed by Zppt) */
opj_ppx* ppt_markers;
/** packet header store there for futur use in t2_decode_packet */
OPJ_BYTE *ppt_data;
@ -371,6 +371,11 @@ typedef struct opj_cp
/** number of tiles in heigth */
OPJ_UINT32 th;
/** number of ppm markers (reserved size) */
OPJ_UINT32 ppm_markers_count;
/** ppm markers data (table indexed by Zppm) */
opj_ppx* ppm_markers;
/** packet header store there for futur use in t2_decode_packet */
OPJ_BYTE *ppm_data;
/** size of the ppm_data*/