Alien-FreeImage
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src/Source/LibOpenJPEG/jp2.c view on Meta::CPAN
* @param jp2 the jpeg2000 file codec.
* @param p_header_size the size of the data contained in the FTYP box.
* @param p_manager the user event manager.
*
* @return true if the FTYP box is valid.
*/
static OPJ_BOOL opj_jp2_read_ftyp( opj_jp2_t *jp2,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
opj_event_mgr_t * p_manager );
OPJ_BOOL opj_jp2_skip_jp2c( opj_jp2_t *jp2,
opj_stream_private_t *cio,
opj_event_mgr_t * p_manager );
/**
* Reads the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box).
*
* @param p_header_data the data contained in the file header box.
* @param jp2 the jpeg2000 file codec.
* @param p_header_size the size of the data contained in the file header box.
* @param p_manager the user event manager.
*
* @return true if the JP2 Header box was successfully reconized.
*/
static OPJ_BOOL opj_jp2_read_jp2h( opj_jp2_t *jp2,
OPJ_BYTE *p_header_data,
OPJ_UINT32 p_header_size,
opj_event_mgr_t * p_manager );
/**
* Writes the Jpeg2000 codestream Header box - JP2C Header box. This function must be called AFTER the coding has been done.
*
* @param cio the stream to write data to.
* @param jp2 the jpeg2000 file codec.
* @param p_manager user event manager.
*
* @return true if writing was successful.
*/
static OPJ_BOOL opj_jp2_write_jp2c( opj_jp2_t *jp2,
opj_stream_private_t *cio,
opj_event_mgr_t * p_manager );
#ifdef USE_JPIP
/**
* Write index Finder box
* @param cio the stream to write to.
* @param jp2 the jpeg2000 file codec.
* @param p_manager user event manager.
*/
static OPJ_BOOL opj_jpip_write_iptr( opj_jp2_t *jp2,
opj_stream_private_t *cio,
opj_event_mgr_t * p_manager );
/**
* Write index Finder box
* @param cio the stream to write to.
* @param jp2 the jpeg2000 file codec.
* @param p_manager user event manager.
*/
static OPJ_BOOL opj_jpip_write_cidx(opj_jp2_t *jp2,
opj_stream_private_t *cio,
opj_event_mgr_t * p_manager );
/**
* Write file Index (superbox)
* @param cio the stream to write to.
* @param jp2 the jpeg2000 file codec.
* @param p_manager user event manager.
*/
static OPJ_BOOL opj_jpip_write_fidx(opj_jp2_t *jp2,
opj_stream_private_t *cio,
opj_event_mgr_t * p_manager );
#endif /* USE_JPIP */
/**
* Reads a jpeg2000 file signature box.
*
* @param p_header_data the data contained in the signature box.
* @param jp2 the jpeg2000 file codec.
* @param p_header_size the size of the data contained in the signature box.
* @param p_manager the user event manager.
*
* @return true if the file signature box is valid.
*/
static OPJ_BOOL opj_jp2_read_jp(opj_jp2_t *jp2,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
opj_event_mgr_t * p_manager);
/**
* Writes a jpeg2000 file signature box.
*
* @param cio the stream to write data to.
* @param jp2 the jpeg2000 file codec.
* @param p_manager the user event manager.
*
* @return true if writing was successful.
*/
static OPJ_BOOL opj_jp2_write_jp( opj_jp2_t *jp2,
opj_stream_private_t *cio,
opj_event_mgr_t * p_manager );
/**
Apply collected palette data
@param color Collector for profile, cdef and pclr data
@param image
*/
static void opj_jp2_apply_pclr(opj_image_t *image, opj_jp2_color_t *color);
static void opj_jp2_free_pclr(opj_jp2_color_t *color);
/**
* Collect palette data
*
* @param jp2 JP2 handle
* @param p_pclr_header_data FIXME DOC
* @param p_pclr_header_size FIXME DOC
* @param p_manager
*
* @return Returns true if successful, returns false otherwise
src/Source/LibOpenJPEG/jp2.c view on Meta::CPAN
{
return opj_j2k_encode(jp2->j2k, stream, p_manager);
}
OPJ_BOOL opj_jp2_end_decompress(opj_jp2_t *jp2,
opj_stream_private_t *cio,
opj_event_mgr_t * p_manager
)
{
/* preconditions */
assert(jp2 != 00);
assert(cio != 00);
assert(p_manager != 00);
/* customization of the end encoding */
opj_jp2_setup_end_header_reading(jp2);
/* write header */
if (! opj_jp2_exec (jp2,jp2->m_procedure_list,cio,p_manager)) {
return OPJ_FALSE;
}
return opj_j2k_end_decompress(jp2->j2k, cio, p_manager);
}
OPJ_BOOL opj_jp2_end_compress( opj_jp2_t *jp2,
opj_stream_private_t *cio,
opj_event_mgr_t * p_manager
)
{
/* preconditions */
assert(jp2 != 00);
assert(cio != 00);
assert(p_manager != 00);
/* customization of the end encoding */
opj_jp2_setup_end_header_writing(jp2);
if (! opj_j2k_end_compress(jp2->j2k,cio,p_manager)) {
return OPJ_FALSE;
}
/* write header */
return opj_jp2_exec(jp2,jp2->m_procedure_list,cio,p_manager);
}
void opj_jp2_setup_end_header_writing (opj_jp2_t *jp2)
{
/* preconditions */
assert(jp2 != 00);
#ifdef USE_JPIP
if( jp2->jpip_on )
opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jpip_write_iptr );
#endif
opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jp2_write_jp2c );
/* DEVELOPER CORNER, add your custom procedures */
#ifdef USE_JPIP
if( jp2->jpip_on )
{
opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jpip_write_cidx );
opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jpip_write_fidx );
}
#endif
}
void opj_jp2_setup_end_header_reading (opj_jp2_t *jp2)
{
/* preconditions */
assert(jp2 != 00);
opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jp2_read_header_procedure );
/* DEVELOPER CORNER, add your custom procedures */
}
OPJ_BOOL opj_jp2_default_validation ( opj_jp2_t * jp2,
opj_stream_private_t *cio,
opj_event_mgr_t * p_manager
)
{
OPJ_BOOL l_is_valid = OPJ_TRUE;
OPJ_UINT32 i;
/* preconditions */
assert(jp2 != 00);
assert(cio != 00);
assert(p_manager != 00);
/* JPEG2000 codec validation */
/* STATE checking */
/* make sure the state is at 0 */
l_is_valid &= (jp2->jp2_state == JP2_STATE_NONE);
/* make sure not reading a jp2h ???? WEIRD */
l_is_valid &= (jp2->jp2_img_state == JP2_IMG_STATE_NONE);
/* POINTER validation */
/* make sure a j2k codec is present */
l_is_valid &= (jp2->j2k != 00);
/* make sure a procedure list is present */
l_is_valid &= (jp2->m_procedure_list != 00);
/* make sure a validation list is present */
l_is_valid &= (jp2->m_validation_list != 00);
/* PARAMETER VALIDATION */
/* number of components */
l_is_valid &= (jp2->numcl > 0);
/* width */
l_is_valid &= (jp2->h > 0);
/* height */
l_is_valid &= (jp2->w > 0);
/* precision */
for (i = 0; i < jp2->numcomps; ++i) {
l_is_valid &= (jp2->comps[i].bpcc > 0);
}
/* METH */
l_is_valid &= ((jp2->meth > 0) && (jp2->meth < 3));
src/Source/LibOpenJPEG/jp2.c view on Meta::CPAN
opj_write_bytes(l_data_header, 24, 4); /* size of iptr */
opj_write_bytes(l_data_header + 4,JPIP_IPTR,4); /* IPTR */
#if 0
opj_write_bytes(l_data_header + 4 + 4, 0, 8); /* offset */
opj_write_bytes(l_data_header + 8 + 8, 0, 8); /* length */
#else
opj_write_double(l_data_header + 4 + 4, 0); /* offset */
opj_write_double(l_data_header + 8 + 8, 0); /* length */
#endif
if (! opj_stream_seek(cio,jp2->jpip_iptr_offset,p_manager)) {
opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
return OPJ_FALSE;
}
if (opj_stream_write_data(cio,l_data_header,24,p_manager) != 24) {
opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
return OPJ_FALSE;
}
if (! opj_stream_seek(cio,j2k_codestream_exit,p_manager)) {
opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
return OPJ_FALSE;
}
return OPJ_TRUE;
}
static OPJ_BOOL opj_jpip_write_fidx(opj_jp2_t *jp2,
opj_stream_private_t *cio,
opj_event_mgr_t * p_manager )
{
OPJ_OFF_T j2k_codestream_exit;
OPJ_BYTE l_data_header [24];
/* preconditions */
assert(jp2 != 00);
assert(cio != 00);
assert(p_manager != 00);
assert(opj_stream_has_seek(cio));
opj_write_bytes(l_data_header, 24, 4); /* size of iptr */
opj_write_bytes(l_data_header + 4,JPIP_FIDX,4); /* IPTR */
opj_write_double(l_data_header + 4 + 4, 0); /* offset */
opj_write_double(l_data_header + 8 + 8, 0); /* length */
if (opj_stream_write_data(cio,l_data_header,24,p_manager) != 24) {
opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
return OPJ_FALSE;
}
j2k_codestream_exit = opj_stream_tell(cio);
if (! opj_stream_seek(cio,j2k_codestream_exit,p_manager)) {
opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
return OPJ_FALSE;
}
return OPJ_TRUE;
}
static OPJ_BOOL opj_jpip_write_cidx(opj_jp2_t *jp2,
opj_stream_private_t *cio,
opj_event_mgr_t * p_manager )
{
OPJ_OFF_T j2k_codestream_exit;
OPJ_BYTE l_data_header [24];
/* preconditions */
assert(jp2 != 00);
assert(cio != 00);
assert(p_manager != 00);
assert(opj_stream_has_seek(cio));
j2k_codestream_exit = opj_stream_tell(cio);
opj_write_bytes(l_data_header, 24, 4); /* size of iptr */
opj_write_bytes(l_data_header + 4,JPIP_CIDX,4); /* IPTR */
#if 0
opj_write_bytes(l_data_header + 4 + 4, 0, 8); /* offset */
opj_write_bytes(l_data_header + 8 + 8, 0, 8); /* length */
#else
opj_write_double(l_data_header + 4 + 4, 0); /* offset */
opj_write_double(l_data_header + 8 + 8, 0); /* length */
#endif
if (! opj_stream_seek(cio,j2k_codestream_exit,p_manager)) {
opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
return OPJ_FALSE;
}
if (opj_stream_write_data(cio,l_data_header,24,p_manager) != 24) {
opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
return OPJ_FALSE;
}
j2k_codestream_exit = opj_stream_tell(cio);
if (! opj_stream_seek(cio,j2k_codestream_exit,p_manager)) {
opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
return OPJ_FALSE;
}
return OPJ_TRUE;
}
#if 0
static void write_prxy( int offset_jp2c, int length_jp2c, int offset_idx, int length_idx, opj_stream_private_t *cio,
opj_event_mgr_t * p_manager )
{
OPJ_BYTE l_data_header [8];
OPJ_OFF_T len, lenp;
lenp = opj_stream_tell(cio);
opj_stream_skip(cio, 4, p_manager); /* L [at the end] */
opj_write_bytes(l_data_header,JPIP_PRXY,4); /* IPTR */
opj_stream_write_data(cio,l_data_header,4,p_manager);
opj_write_bytes( l_data_header, offset_jp2c, 8); /* OOFF */
opj_stream_write_data(cio,l_data_header,8,p_manager);
opj_write_bytes( l_data_header, length_jp2c, 4); /* OBH part 1 */
opj_write_bytes( l_data_header+4, JP2_JP2C, 4); /* OBH part 2 */
opj_stream_write_data(cio,l_data_header,8,p_manager);
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